Category Archives: Cnc Machining

CNC Machine Tool Factory

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The rotary transformer of CNC machine tool factory is a common angular displacement measuring device on CNC machine tools. It has the characteristics of simple structure, sensitive action, reliable T operation, low requirements for environmental conditions, large amplitude of input H signal and strong anti-interference ability. Signal processing is more complicated, and resolvers are widely used in semi-closed-loop controlled CNC machine tools.
According to the functional relationship between output voltage and rotor angle, resolvers can be divided into the following j basic types:
① sine and cosine resolver. The excitation of single-phase AC power supply is applied externally on the primary side, and the two output voltages of =ik r are related to the sine and cosine functions of the rotor angle respectively.
② Linear resolver. In a certain working angle range gate, the output voltage and the angle of rotation are linear functions.
③ Proportional resolver. It is similar to the sine and cosine resolver, with the addition of a device for adjusting and locking the rotor position in structure. In the system as a proportional component to adjust the voltage.
The structure of the rotary transformer in the CNC machine tool factory
The rotary transformer of the CNC machine tool factory consists of two parts, the stator and the rotor, as shown in Figure 4-16. Two distributed windings whose axes are perpendicular to each other in space, that is, two-pole two-phase windings, are embedded in the fixed and rotated iron core slots, respectively. CNC Machine Tool Factory S, S. and S: S. They are identical in structure for the purpose of setting the windings. R, wind and R, R are rotor windings, and their structures are exactly the same. The stator winding is the primary side of the transformer, the rotor is the secondary side of the transformer, the excitation voltage is connected to the primary side, and the frequency is usually /iOOHz, oOOHz, 1000Hz and 5000Hz. The mutual inductance between the stator and rotor windings of the CNC machine tool factory changes according to the sine and cosine laws of the rotor deflection angle. One signal changes in proportion to the sine of the rotor angle, and the other signal changes in proportion to the cosine of the rotor angle. The stator winding lead wire Directly to the terminal block, while the rotor windings are connected to the terminal block through slip rings and brushes.
The two-pole resolver commonly used in CNC machine tool factories has a pair of magnetic poles for the stator and rotor. In addition to this, there is a multi-pole resolver.

At Be-cu.com,we use advanced equipment to offer you Unparalleled precision for producing metal and plastic machining parts

  • We combine the latest CNC milling and turning processes with proprietary technology to deliver high quality, on-demand parts.
  • Our team of engineers and machinists program the equipment to optimize cutting time, surface finish, and final tolerance to meet your design specifications
  • We specialize in cnc precision machining, single part prototyping, short to medium production runs, manufacture parts on time, every time, so you can stay ahead of schedule
  • CNC machining can create very similar parts to series parts. It is often more efficient and faster than other rapid prototyping technologies for the manufacture of a quantity of prototypes between 1 and 10 parts . We also recommend CNC machining for parts with large sizes (greater than 600 mm).

What Are The Advantages Of Carbon Fiber Robot Arms?

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The robotic arm is an important part of the robot and is a mechanical automation device. The basic function of the robotic arm is to guide the gripper to accurately grasp the workpiece to the desired position and to bear the arm’s own weight and the maximum weight of the grasped workpiece. Now some robotic arms are favored. For the use of carbon fiber materials, in this article, let’s take a look at the advantages of carbon fiber robotic arms.
 
The robot arm is a typical cantilever beam structure, and its own quality will have a certain impact on the robot arm itself. Therefore, if you want to reduce the weight of the robot arm while satisfying the static and dynamic performance, choose the appropriate Material is particularly important. Carbon fiber is an excellent weight-saving material. Its density is only 1.7g/cm3, which is less than 1/4 of steel. It is a new type of weight-saving material.
 
As mentioned at the beginning, the mechanical arm not only has to bear its own weight, but also needs to bear the maximum weight of grasping the workpiece, so that strain and fracture cannot occur. The specific stiffness is better than that of most structural materials, and the load-carrying performance is outstanding, effectively meeting the needs of the use strength.
 
China Be-cu Prototype Material Technology Co., Ltd. has a production workshop of more than 5,000 square meters, with large-scale hot presses, autoclaves, hydraulic forming tables, Cnc high-speed milling machines and other large-scale equipment, dedicated to bringing high-quality carbon fiber to customers. Products, related carbon fiber products have been exported to Europe and the United States and other countries for a long time.

 

ISO 9001 certified. BE-CU Prototype Offering CNC machining carbon fiber and other manufacturing services for carbon fiber marterial. Various capabilities include notching, labeling, drilling carbon fiber, grinding, laser cutting carbon fiber, finishing, plating, marking, CNC milling carbon fiber and turning carbon fiber.We stock high quality 3k carbon fiber sheet in a variety of thickness, types and finish. Its a great material used in applications where light weight and strength are needed such as drones. Unlike other workshops, we have no min order and are often filling orders with a single part. We also don’t make you pay for the full sheet and you only get charged for what is used. With a large selection of material, you should find everything you need to make your project come to life. We are also able to handle larger production runs and provide a competitive pricing. If we don’t have the material or finish you require, we are more the willing to look at bringing it in for you.

What Is Carbon Fiber?Carbon fiber is made of polyacrylonitrile (PAN) (or pitch, viscose) and other organic fibers by carbonization (removal of most elements except carbon) by pyrolysis method under inert gas at high temperature above 1,000 °C. Inorganic polymer fibers with a carbon content of more than 90%.

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Why Is The Price Of Carbon Fiber Products Generally Much Higher Than That Of Metal Materials?

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Carbon fiber materials have very high performance and performance advantages, which are concentrated in light weight, such as low overall density, lighter weight and higher strength, which also makes carbon fiber products very well used. When purchasing carbon fiber products , found that the price of carbon fiber products is generally relatively high, what is the reason that the price of carbon fiber products will be much higher? This article follows the editor of the Be-cu prototype to take a look.

The reason why the price of carbon fiber products is expensive is that the value of carbon fiber products is relatively high. On the whole, there are three aspects.

1. Raw material prices

The price of carbon fiber composite materials will be more expensive. If you want high-performance carbon fiber, you will choose foreign carbon fiber raw materials, and foreign carbon fiber machining will be much more expensive, which leads to the price of carbon fiber composite materials will definitely be high. out a lot. The extraction steps of carbon fiber precursors are also more complicated, so the cost of carbon fiber precursors is relatively high. In addition, carbon fiber precursors are made into carbon fiber products, and resin needs to be welcomed, and the resin matrix also requires a certain cost. If the resin is high temperature, the cost will be higher.

That is different from metal materials, such as how much is a ton, and how much is a kilogram of carbon fiber composite materials, so the price of raw materials for carbon fiber products is relatively expensive, which is an important reason for the high price of carbon fiber products.

2. High labor cost

The production and machining of carbon fiber products requires a lot of manpower, and the entire production and machining of carbon fiber products requires a lot of labor costs, such as laying materials, upper molds, etc., such as closed machining of molding, etc. In addition, the needs of carbon fiber products of different production processes The equipment is also different. The entire equipment investment and technical learning have strong requirements for the production of carbon fiber products, which all cause the price of carbon fiber products to be more expensive after production.

3. High cost of proofing

In the production of carbon fiber products, they will be applied to molds. Many people’s products are just beginning to be developed, so they are all in the early stage of proofing. In this case, only a few carbon fiber products will be produced, and then spread to the The cost of the mold will also feel that the price of carbon fiber products is relatively expensive.

Under these problems, the price of carbon fiber products is relatively expensive. We see an important reason for the higher cost of carbon fiber products. In this case, the price of carbon fiber products will undoubtedly be higher, but from a long-term and performance point of view , The service life of carbon fiber products is longer, the overall cost will be lower, and the performance advantages of carbon fiber products are also higher, which makes the market prospect of carbon fiber products very good, after all, a good horse is equipped with a good saddle, and every penny is worth every penny. Goods, so customers who need carbon fiber products are welcome to come to consult the editor of the Be-cu prototype. China Be-cu Prototype Material Technology Co., Ltd. has ten years of rich experience in the carbon fiber field. It is engaged in the production and machining of carbon fiber products. It has complete molding equipment and perfect machining machines, and can complete various types of carbon fiber products. Production, customized production according to drawings.

ISO 9001 certified. BE-CU Prototype Offering CNC machining carbon fiber and other manufacturing services for carbon fiber marterial. Various capabilities include notching, labeling, drilling carbon fiber, grinding, laser cutting carbon fiber, finishing, plating, marking, CNC milling carbon fiber and turning carbon fiber.We stock high quality 3k carbon fiber sheet in a variety of thickness, types and finish. Its a great material used in applications where light weight and strength are needed such as drones. Unlike other workshops, we have no min order and are often filling orders with a single part. We also don’t make you pay for the full sheet and you only get charged for what is used. With a large selection of material, you should find everything you need to make your project come to life. We are also able to handle larger production runs and provide a competitive pricing. If we don’t have the material or finish you require, we are more the willing to look at bringing it in for you.

What Is Carbon Fiber?Carbon fiber is made of polyacrylonitrile (PAN) (or pitch, viscose) and other organic fibers by carbonization (removal of most elements except carbon) by pyrolysis method under inert gas at high temperature above 1,000 °C. Inorganic polymer fibers with a carbon content of more than 90%.

Analysis of the corrosion resistance of carbon fiber composites

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As an excellent structural material, carbon fiber has been used in many fields. In addition to the excellent properties of light weight and high strength, the corrosion resistance of carbon fiber composite materials is also more prominent than other structural materials. What makes carbon fiber have excellent performance? What about corrosion resistance? Let’s find out together.
It can be seen from the production process of carbon fiber that carbon fiber is a structure similar to graphite crystal formed by high temperature carbonization and graphitization at 2000-3000 °C. This structure itself has high resistance to medium corrosion. In some chemical media , its strength and modulus remain basically unchanged. However, in practical applications, carbon fiber is usually fused with matrix materials such as resin to form carbon fiber composite materials, so the corrosion resistance of carbon fiber products will be different from that of carbon fiber itself.
In different environments, carbon fiber products also have different corrosion resistance performance, because the comprehensive effect of ultraviolet rays, oxygen and moisture in the aging effect of the environment on epoxy resin composites is stronger than the unilateral effect, and the aging process Generally, it starts from the surface, and then gradually develops to the inside. With the development of carbon fiber composite product application technology, in many working scenarios with harsh environments, the good corrosion resistance of carbon fiber composite materials has won more and more application opportunities.
China Be-cu Prototype Material Technology Co., Ltd. is a professional manufacturer of carbon fiber products. The company has advanced fiber-reinforced composite material sheet, pipe, molding, autoclave, Cnc machining and other production lines. It has rich production experience and insists on bringing customers High quality carbon fiber products.

ISO 9001 certified. BE-CU Prototype Offering CNC machining carbon fiber and other manufacturing services for carbon fiber marterial. Various capabilities include notching, labeling, drilling carbon fiber, grinding, laser cutting carbon fiber, finishing, plating, marking, CNC milling carbon fiber and turning carbon fiber.We stock high quality 3k carbon fiber sheet in a variety of thickness, types and finish. Its a great material used in applications where light weight and strength are needed such as drones. Unlike other workshops, we have no min order and are often filling orders with a single part. We also don’t make you pay for the full sheet and you only get charged for what is used. With a large selection of material, you should find everything you need to make your project come to life. We are also able to handle larger production runs and provide a competitive pricing. If we don’t have the material or finish you require, we are more the willing to look at bringing it in for you.

What Is Carbon Fiber?Carbon fiber is made of polyacrylonitrile (PAN) (or pitch, viscose) and other organic fibers by carbonization (removal of most elements except carbon) by pyrolysis method under inert gas at high temperature above 1,000 °C. Inorganic polymer fibers with a carbon content of more than 90%.

Spindle Components Of CNC Machining Centers

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The role and function of the spindle The spindle component is one of the execution components of the forming movement of the machining center, and the spindle component of the machining center is required to have high running accuracy, long-term accuracy retention and long-term accuracy stability.

The machining center is usually used as a precision machine tool, and the running accuracy of the spindle components determines the machining accuracy of the machine tool. There are generally two methods for evaluating the running accuracy of machine tools: dynamic inspection and static inspection. Static inspection refers to the inspection of the runout of each positioning surface and working surface of the main shaft components under the condition of low speed or dynamic rotation of the main shaft. The dynamic inspection needs to use a certain instrument under the rated speed of the machine tool main shaft, and use a non-contact detection method to test the rotation accuracy of the main shaft.
 
Since the machining center usually has the function of automatic tool change, the tool is fastened by the tensioning mechanism installed inside the spindle of the machining center through the special tool holder, so the rotation accuracy of the spindle should consider the error caused by the machining error of the positioning surface of the tool holder. Machining center spindle bearings usually use C-class bearings. In the two-support spindle components, 41 and 22 are mostly used in combination, that is, four radial thrust bearings and one radial ball bearing are used for the front support and the rear support respectively. The supports use two radial thrust bearings to form the support system of the main shaft components. For light-duty high-precision machining centers, there is also a support system in which a radial thrust bearing is used for the front and rear supports to form the spindle components. This structure is suitable for high-precision and high-speed spindle components. The spindle accuracy is lost due to assembly errors and heat conduction, but the bearing capacity of the spindle will be greatly reduced.
 
When ordering the spindle bearings, you can choose single use order or paired use order. Paired use When ordering, the supplier will match the inner and outer rings of the paired bearings so that they have the specified axial interference after preloading on the main shaft. The optimal installation position of the paired bearings in the circumferential direction of the main shaft will also be marked by the supplier to meet the working performance requirements after the main shaft is installed.
 

 

At Be-cu.com,we use advanced equipment to offer you Unparalleled precision for producing metal and plastic machining parts

  • We combine the latest CNC milling and turning processes with proprietary technology to deliver high quality, on-demand parts.
  • Our team of engineers and machinists program the equipment to optimize cutting time, surface finish, and final tolerance to meet your design specifications
  • We specialize in cnc precision machining, single part prototyping, short to medium production runs, manufacture parts on time, every time, so you can stay ahead of schedule
  • CNC machining can create very similar parts to series parts. It is often more efficient and faster than other rapid prototyping technologies for the manufacture of a quantity of prototypes between 1 and 10 parts . We also recommend CNC machining for parts with large sizes (greater than 600 mm).

Shenyang Machine Tool Adjustment And Maintenance

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840D adjustment Compared with the previous Cnc, the adjustment of 840D has both similarities and differences. The same is that the axis selection is still done through Shenyang Machine Data (MD); the difference is that the axis adjustment has been softwareized on the 840D. The following are respectively introduced as follows:
 
①NC Shenyang machine data. The machine data of 840D can be roughly divided into the following categories:
 
aGeneral Shenyang machine data. The range of this type of machine data is: NC-MD10000～19600.
bChannel-related Shenyang machine data. The range of this type of machine data is: NC-MD20000—29000.
 
cAxis-related machine data. The range of this type of Shenyang machine tool data is: NC-MD30110~ 38010, this type of data defines the form of the axis, such as linear axis or rotary axis.
d FDD(feed axis drive) data. The range of this type of Shenyang machine data is: NC-MDIOOO ~1799 (each feed axis has a set of this type of data).
 
e MSD(spindle drive) data. The scope of this type of Shenyang machine tool data is: NC-MD2005—2725 (each spindle has a set of this type of data); the type of motor used is defined in this type of data.
 
fdriver configuration file. In this drive configuration file, you can define the drive Module used, whether it is a feed axis or a spindle, etc.
 
GDisplay and manipulate data. The range of this type of machine data is: NC-MD9000-9999, this type of data is used to set the Display of the V24 communication port and CRT.
 
②PLC user program. The PLC user program of 840D, like other CNC PLC user programs, is a program about the logical relationship between Shenyang machine tool status, peripheral input signals and control switches, that is, the logical relationship of Shenyang machine tool electrical control is mainly determined in the PLC user program. . The PLC user program of 840D is written by STW7 programming language, which can be programmed by PC720/PC740.The PLC user program can be edited, passed on, and sent out; it can also perform on-line diagnosis and status control of the PLC; it can read out the interrupt stack and signal status; it can also start and stop the PLC to find and process PLC-related issues for Shenyang machine tools. The fault provides great convenience

 

At Be-cu.com,we use advanced equipment to offer you Unparalleled precision for producing metal and plastic machining parts

  • We combine the latest CNC milling and turning processes with proprietary technology to deliver high quality, on-demand parts.
  • Our team of engineers and machinists program the equipment to optimize cutting time, surface finish, and final tolerance to meet your design specifications
  • We specialize in cnc precision machining, single part prototyping, short to medium production runs, manufacture parts on time, every time, so you can stay ahead of schedule
  • CNC machining can create very similar parts to series parts. It is often more efficient and faster than other rapid prototyping technologies for the manufacture of a quantity of prototypes between 1 and 10 parts . We also recommend CNC machining for parts with large sizes (greater than 600 mm).

Measures To Improve Wear Resistance Of CNC Machine Tool Guide Rails

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The basic idea of ​​improving wear resistance from the design point of view; strive for no wear as much as possible; when wear is unavoidable, try to strive for less wear, uniform wear and compensation after wear, so as to improve the service life.
 

1. Strive for no wear

 
The reason for wear is that the mating is in direct contact and relative movement under a certain pressure. Therefore, the condition for no wear is that the mating surfaces are not in direct contact during relative movement, and there is no relative movement when they are in contact.
One of the ways that the mating surfaces are not in direct contact during relative motion is to ensure complete liquid lubrication, so that the lubricant completely separates the friction surfaces. Such as hydrostatic guide rails, hydrostatic bearings or other hydrostatic pairs. The dynamic pressure guide rail and the dynamic pressure bearing can also achieve a complete liquid lubrication state, but the greasy pressure is related to the relative movement speed. Therefore, wear is still inevitable during starting or stopping.
 

2. strive for less wear

 
No wear and tear can only be achieved in a few and special cases, and in most cases, we can only strive for less wear and tear to extend the working period.
 
1) Heat Treatment of Correctly Selecting Materials of Friction Pairs
Appropriate selection of the material and heat treatment of the friction pair can improve the ability to resist wear, such as hardening of the supporting rails, soft plastic tapes on the surface of the moving rails, etc.
 
2) reduce pressure
 
The pressure can be reduced by increasing the contact surface of the guide rail and reducing the load. Improving the straightness of the guide rail surface and refining the surface roughness can increase the reputation. Extending the length of the moving guide rail with the cold wind guide rail surface can also increase the contact area, but it must be adapted to the rigidity of the moving guide rail, otherwise the deformation will be large after being loaded, the contact will be uneven, and the local pressure will increase, although the area will increase. , but it didn’t work. The use of unloading guide rails is a good way to reduce the load on the guide rails and reduce the pressure.
 
3) change friction properties
 
Replacing the sliding pair with a rolling pair can reduce wear. Ensuring sufficient lubrication in the sliding friction pair avoids dry or semi-dry friction and also reduces wear.
4) Strengthen protection
In order to prevent dust, cutting, grinding wheel chips, etc. from entering the friction pair, strengthening protection is an effective measure to improve the wear resistance of the guide rail.
 

3. Strive for even wear

 
Whether the wear is uniform or not has a great influence on the working life of the components. There are two main reasons for uneven wear.
(1) The pressure distribution on the friction surface is uneven.
(2) Each section has different access opportunities.
 
There are the following measures to strive for uniform wear.
 
(1) Strive to make the pressure on the friction surface evenly distributed, for example, the shape and size of the guide rail should make the concentrated load as symmetrical as possible.
(2) Minimize torsional and overturning moments.
(3) Ensure that the supporting parts such as the workbench and the slide have sufficient rigidity.
(4) The hardness of the friction pair with uneven use opportunities over the entire length should be higher. For example, the hardness of the guide rail of the lathe bed should be higher than that of the saddle guide rail.
 

4. After wear, it should be able to compensate for the amount of wear

 
The gap becomes larger after wear, and the design should consider that the gap can be compensated for in structure. The compensation method can be automatic continuous compensation or periodic manual compensation. Automatic continuous compensation can rely on its own weight, such as a triangular guide. Regular manual compensation, such as rectangular and dovetail guide rails by adjusting the inserts, closed guide rails also need to adjust the pressure plate.
 

 

At Be-cu.com,we use advanced equipment to offer you Unparalleled precision for producing metal and plastic machining parts

  • We combine the latest CNC milling and turning processes with proprietary technology to deliver high quality, on-demand parts.
  • Our team of engineers and machinists program the equipment to optimize cutting time, surface finish, and final tolerance to meet your design specifications
  • We specialize in cnc precision machining, single part prototyping, short to medium production runs, manufacture parts on time, every time, so you can stay ahead of schedule
  • CNC machining can create very similar parts to series parts. It is often more efficient and faster than other rapid prototyping technologies for the manufacture of a quantity of prototypes between 1 and 10 parts . We also recommend CNC machining for parts with large sizes (greater than 600 mm).

Design Principles Of Carbon Fiber Composite Laminates

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Carbon fiber composite material is made of carbon fiber and other matrix materials through a composite process. It has high specific strength, high specific modulus and high shock absorption. It has excellent performance and is used in many fields. It is an anisotropic material, and special attention should be paid to the design of the ply during the molding design. In this article, the editor will talk about the design principles of carbon fiber composite laminates.
 
1. Lay-up orientation principle: The types of lay-up angles should be minimized. In practical applications, four kinds of lay-up angles of 0°, ±45° and 90° are used the most.
 
2. The principle of layer orientation is selected according to the load: the fiber direction should be as consistent as possible with the direction of the external load.
 
3. Principle of balanced and symmetrical laying: carbon fiber composite materials have the phenomenon of coupling deformation. If the structure is asymmetrically laid in a balanced manner, coupling deformation will occur after curing, while symmetrical laying will not cause coupling deformation.
 
4. The principle of the minimum proportion of layers: in order to prevent the substrate from being stressed and reduce the heat and humidity stress, the proportion of layers with directions of 0°, ±45° and 90° is generally greater than 10%.
 
5. Thickening design principle: In order to avoid stress concentration caused by sudden change in thickness, the number of layers should be gradually changed according to the number of steps in the design of thickened layers. The step difference of each layer should be equal and the width should not be less than 2.5mm. The surface layer of the structure adopts continuous layup to avoid delamination at the steps.
 
6. Design principle for impact load: For parts of carbon fiber board that are easily impacted, there should be enough 45° layers to spread the load, and enough 0° layers to withstand local impact loads.
 
Carbon fiber composite laminates are widely used and can be used in drone parts, medical CT panels, mechanical parts, etc. The picture above is a medical board customized by China Be-cu Prototype Material Technology Co., Ltd. for a well-known domestic medical device manufacturer. The texture is clear and neat, the surface is smooth, free of impurities, white spots, scratches, pits, pinholes, thickness The tolerance should be kept within ±0.05mm, and the transmittance of X-rays is as high as 96%.

ISO 9001 certified. BE-CU Prototype Offering CNC machining carbon fiber and other manufacturing services for carbon fiber marterial. Various capabilities include notching, labeling, drilling carbon fiber, grinding, laser cutting carbon fiber, finishing, plating, marking, CNC milling carbon fiber and turning carbon fiber.We stock high quality 3k carbon fiber sheet in a variety of thickness, types and finish. Its a great material used in applications where light weight and strength are needed such as drones. Unlike other workshops, we have no min order and are often filling orders with a single part. We also don’t make you pay for the full sheet and you only get charged for what is used. With a large selection of material, you should find everything you need to make your project come to life. We are also able to handle larger production runs and provide a competitive pricing. If we don’t have the material or finish you require, we are more the willing to look at bringing it in for you.

What Is Carbon Fiber?Carbon fiber is made of polyacrylonitrile (PAN) (or pitch, viscose) and other organic fibers by carbonization (removal of most elements except carbon) by pyrolysis method under inert gas at high temperature above 1,000 °C. Inorganic polymer fibers with a carbon content of more than 90%.

Research And Application Of Single-biased Improved Structure Of Outer Guide Column Of Automobile Panel Mold

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Combined with the practical application characteristics of automobile panel molds, research and analysis are carried out, and a guide post that can realize automatic adjustment is designed.The mold guide structure and development scheme of the guide bush clearance eliminates the stubborn quality problem of single deviation of the guide post caused by factors such as machining accuracy, assembly accuracy, and machine tool error, and improves the quality of the mold and customer satisfaction. Verified by actual production, the structure and development scheme are simple, effective, and easy to operate, and have a certain reference for the development of similar molds for automobile panels.

introduction

With the continuous development of the automobile industry, the automobile industry will launch many models every year, and each model will develop corresponding tooling molds. The structure of the outer guide column used in the development of our company’s previous projects is the conventional implanted guide column guide sleeve guide structure. , when the mold of this structure is accepted by the customer,60%The above guide post and guide sleeve components will have a single deviation in the coloring and coloring. This problem is very difficult to eliminate. When the customer accepts the problem, the problem cannot be sold out. If it does not meet the customer’s requirements, the product part and mold customer acceptance will not pass; The single offset of the coloring in the research and development of the sleeve will seriously reduce the service life of the standard parts of the guide post and guide sleeve, and increase the maintenance cost of the mold; at the same time, the occurrence of this problem will cause the center of the upper and lower molds of the mold to deviate and increase the mold research and development cycle.

How to avoid the above problems during the development of the mold is the focus of the mold tooling development. Through the research and analysis of the structural characteristics of the automobile panel mold, an adjustable gap guide post is adopted./The guide sleeve structure can eliminate this quality problem to improve production efficiency and guide post/The service life of the standard parts of the guide sleeve and the reduction of the development cost of the mold can effectively solve the above problems.

Data collection and analysis

The single deviation of the guide column of the mold that has been shipped from the factory

According to the customer acceptance problem points of the out-of-the-box molds, the problem points of customer acceptance are summarized, and the single deviation of the molds is counted. Details are as follows:

The statistical results are as follows:43The number of auxiliary mold guide posts is172group, the number of single-biased molds for the guide post is26Vice, the number of guide posts is104group, the number of qualified molds is:17Vice, the number of guide posts is68group, the pass rate is40%.

Data collection – current production mold guide post single deviation

Collect and analyze the coloring of the guide pillars according to the current production and assembly and debugging stage of the mold, and count the single deviation of the mold. Details are as follows:

The statistics are as follows: the number of mold verifications in process is10The number of auxiliary mold guide posts is40 group; the pass rate is50%.

According to the above statistics of the coloring of the guide post, the coloring of the guide post is serious and needs to be solved systematically.

The statistics are as follows: the number of mold verifications in process is10The number of auxiliary mold guide posts is40group; the pass rate is50%.

According to the above statistics of the coloring of the guide post, the coloring of the guide post is serious and needs to be solved systematically.

Cause Analysis

For the problem of single deviation of the guide column, the project team analyzes the cause of the problem and refers to the successful experience and work ideas of other companies.&Conduct investigation and analysis in various aspects such as testing to find the real cause of the problem. Through discussion and analysis, the primary and secondary causes were identified, as shown in the following table:

Through analysis, we finally get8potential factors, as follows:

Troubleshooting

After analyzing and determining the primary and secondary factors of the single deviation of the guide column, the project team held a group meeting to divide the work, formulate relevant work plans, and verify and confirm the potential factors that may cause the single deviation of the guide column. The details are as above.Through the application of “man, machine, material, method, environment, and test” quality tools, analyze, check and verify the causes of problems, formulate verification work plans according to the listed possible causes, and verify one by one , The true cause of the final determination is as follows:

The precision of the stamping machine, the rationality of the structure of the guide part and the machining accuracy are the three factors that affect the coloring of the guide post of the die.

Countermeasures

The project team visited the well-known automobile outer panel mold factories in the industry. Through the visits and exchanges, it was found that most of the mold guide structures of these mainstream mold factories adopt the European standard guide structure, which has the function of automatically adjusting the relative guide gap.

The project team discussed the main reasons and the results of the visit, and decided to adjust the structure to eliminate the influence of the three factors of the precision of the stamping machine, the rationality of the structure and the machining accuracy on the coloring of the die guide column.

The specific improvement plan is as follows:

  • ⑴ Institutional design.Determine the guide column according to the design standard according to the length and width of the mold/Outer diameter of guide bush ΦD/ΦD1and lengthL;According to the length and width of the mold, determine the guide column according to the design standard/The spacing and position of the guide bushes; select the European standard flanged guide bushes (CMG61) and guide bush anti-dislodgement (CMG72/73); select the guide post corresponding to the guide bush (CMG51); set the installation surface of the guide post, the guide sleeve and the guide post anti-drop structure; determine the number and installation position of the guide post anti-drop structure; set the guide sleeve protection table; after the drawing is completed, issue3DStructural drawings (the specific structure is shown in the figure1shown).
  • ⑵ processing technology design.According to guide/For the specification of the guide bush, determine the guide post in accordance with the “Guide Post and Guide Bush Tolerance Fitting Requirements”/Machining tolerance of guide bush mounting hole: ΦD H7/r6ΦD1E7/g6; Issue the processing technology;
  • ⑶ processing and assembly.according to3DStructural entity and processing technology, processing guide column/Guide sleeve installation hole; check the size of the guide post and guide sleeve installation hole, if the installation hole size does not meet the process requirements, go back to the previous step; if it meets the process requirements, go to the next step; follow the3DStructural entity installation guide post, guide sleeve, guide sleeve anti-off block;
  • ⑷ production debugging.Install the mold in the debugging/On the production machine; clean the inside of the guide sleeve and the outer plate of the guide column; use a wrench to loosen the guide sleeve anti-fall off block; turn the guide sleeve counterclockwise and clockwise for one week; operate the machine tool to close the mold3~5The second time, the guide post and guide sleeve are automatically guided to achieve a uniform gap between the two; lock the guide sleeve to prevent dislodging; the guide post is brushed with a blue sheet; Return to the step of turning the guide sleeve counterclockwise and clockwise for one turn, and re-adjust and test according to the process; if the coloring is qualified, proceed to the next step for production debugging.The specific process is shown in the figure2shown.
  • The method of the invention is simple, clear in structure, convenient in operation, cleverly uses the mold structure and tolerance matching, and under the premise of satisfying the blanking gap and guiding precision, the guide post is/The matching of the guide sleeve can realize the automatic alignment function, so that the guide post/The gap of the guide sleeve is uniform, which solves the problem of the guide post/The stubborn problem of single deviation of the guide sleeve improves the service life of the guide post and the guide sleeve and customer satisfaction, shortens the design and debugging cycle of the mold, and reduces the manufacturing cost of the mold.

Assembly Verification

Newly developed in the companyS7The project mold adopts a new European standard guide structure, and the production and manufacturing enter the assembly stage./The blue dan coloring situation was verified and confirmed.The guide pillars verified this time are:32Group,28combined grid,4Group failure (does not affect the normal use of the mold), red (blue) Dan coloring pass rate90.6%.

concluding remarks

Combined with the practical application characteristics of automobile panel molds, research and analysis are carried out, and a guide post that can realize automatic adjustment is designed./The mold guide structure and development scheme of the guide bush clearance eliminates the stubborn quality problem of single deviation of the guide post caused by factors such as machining accuracy, assembly accuracy, and machine tool error, and improves the quality of the mold and customer satisfaction. Verified by actual production, the structure and development scheme are simple, effective, and easy to operate, and have a certain reference for the development of similar molds for automobile panels.

Sheet fabrication services for mild steel, high strength low alloy (HSLA) steel, cold/hot rolled steel, galvanized steel, stainless steel, aluminum, copper and brass. Capable of fabricating parts up to 12 ft. length and +/-0.001 in. tolerance. Various capabilities include contract manufacturing,custom stamping,edge rolling, forming,top laser cutting, roll bending and welding. Finishing and secondary services such as hardware installation, tapping, deburring, cleaning, heat treating, plating, anodizing and painting available. Sheet Metal Prototype and low to high volume production runs offered. Suitable for commercial/residential architectural, aluminum brake shape parts, wall panel systems, brackets, general flashings, rails, call button plates and ship building component parts.

A Brief Introduction To Carbon Fiber

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There are many members of the carbon material family, including macro-scale coke, diamond, expanded graphite,carbon fiberand nanoscale carbon nanotubes, fullerenes and graphene. Among them, coke is mainly used in blast furnace ironmaking, mechanical casting, calcium carbide production, chemical fertilizer chemical gas production, etc. The real materials used for material preparation are expanded graphite, carbon fiber and various nano-carbon materials. These carbon materials either become part of composite materials as fillers, or themselves become a series of products that can be seen everywhere in production and life, such as sealing materials and building materials, through processes such as weaving and molding.
 
 
Carbon fiber is a fibrous carbon material that is lighter than aluminum, stronger than steel, thinner than human hair, and contains more than 90% carbon. It has excellent properties such as high impact strength, high tensile modulus, low density, high temperature resistance, ablation resistance, corrosion resistance, high electrical and thermal conductivity, low thermal expansion, self-lubrication and good biocompatibility. Most carbon fibers are composed of incomplete graphite crystals arranged along the fiber axis. They are hexagonal network layered accumulations composed of sp^2 hybridization. The crystallites composed of carbon atoms are the microstructural units of carbon fibers. The layer spacing is about 0.3360~0.3440mm, and the parallel layers are irregularly stacked, lacking three-dimensional orderly arrangement, and showing a turbulent layer structure. When carbon fiber is annealed at high temperature, it experiences a high temperature above 2500°C. When the carbon content is greater than 99%, the interlayer spacing decreases, indicating that the carbon atoms have transformed from the turbostratic structure to the three-dimensional ordered graphite structure, forming a graphite-like structure. These two types of fibers are divided into carbon fibers and graphite fibers in China and the United States according to different heat treatment temperatures, while in Japan and Europe, they are used to be collectively referred to as carbon fibers.
 
After carbon fiber was invented to replace filament in the early 18th century, it is widely used in textiles, materials, military, aerospace, atomic energy and other fields. Since carbon fiber began to develop on a large scale with technology, its output has grown at an average rate of more than 15% every year. By 1990, the world’s total carbon fiber production was 10,496t. In order to meet the needs of general industrial carbon fiber, its industry turned to large The tow direction is developed and the production scale is expanded from a hundred tons to a thousand tons.

 

ISO 9001 certified. BE-CU Prototype Offering CNC machining carbon fiber and other manufacturing services for carbon fiber marterial. Various capabilities include notching, labeling, drilling carbon fiber, grinding, laser cutting carbon fiber, finishing, plating, marking, CNC milling carbon fiber and turning carbon fiber.We stock high quality 3k carbon fiber sheet in a variety of thickness, types and finish. Its a great material used in applications where light weight and strength are needed such as drones. Unlike other workshops, we have no min order and are often filling orders with a single part. We also don’t make you pay for the full sheet and you only get charged for what is used. With a large selection of material, you should find everything you need to make your project come to life. We are also able to handle larger production runs and provide a competitive pricing. If we don’t have the material or finish you require, we are more the willing to look at bringing it in for you.

What Is Carbon Fiber?Carbon fiber is made of polyacrylonitrile (PAN) (or pitch, viscose) and other organic fibers by carbonization (removal of most elements except carbon) by pyrolysis method under inert gas at high temperature above 1,000 °C. Inorganic polymer fibers with a carbon content of more than 90%.

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