Ultrahigh-precision FPC (Flexible Printed Circuit) appearance punching device
By combining design and CCD recognition technology, the FPC ultra-high precision shape punching device solves the problems of insufficient precision and toner residue in the existing technology, and realizes efficient and stable FPC shape processing to meet the needs of the high-end market.
Patent Information
- Application Number
- CN202423169595.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing FPC shape processing methods are difficult to achieve high precision of ±0.05mm. Traditional punching methods are prone to material deformation, and laser processing is prone to producing carbon powder residue, which affects product quality and reliability.
The design employs a combination of an upper die fixing plate, a punch plate assembly, a moving die plate, a lower die plate, and a punch, combined with CCD recognition technology and elastic compensation function to ensure the stability and accuracy of the stamping process and avoid carbon powder residue.
It achieves a surface tolerance requirement of ±0.05mm, improves product reliability, reduces production costs and operational complexity, and enhances production efficiency and equipment stability.
Smart Images
Figure CN223777393U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of measurement, especially relate to a FPC ultra -high -precision profile punching device. BACKGROUND
[0002] With the advent of the science and information age, electronic products have become an indispensable part of people's lives. Especially with the growing demand for wearable devices, flexible circuit boards as an indispensable component in electronic devices, their development has also evolved from single to double-sided, multi-layer, flexible and rigid-flexible combination. In order to adapt to the increasingly compact product design, the connection between different electronic components has gradually shifted from traditional welding to more flexible binding or plug-in connection. This trend not only requires FPC (Flexible Printed Circuit) to have a smaller volume, but also puts higher requirements on its shape accuracy, that is, from the original ±0.2mm tolerance standard to the current ±0.05mm.
[0003] However, in the existing FPC shape processing method, whether it is traditional punching or the laser processing that has emerged in recent years, there are certain limitations. Although the traditional punching method is low in cost, due to the characteristics of FPC material itself (such as easy to stretch and deform), it is difficult to achieve automatic compensation during processing, resulting in that the shape tolerance of the final product can only be controlled at about ±0.1mm, which cannot meet the needs of the high-end market. On the other hand, although laser processing can achieve correction compensation to a certain extent through CCD recognition technology during cutting, thereby controlling the shape tolerance to ±0.05mm, this method is prone to carbon powder residue when processing FPC containing gold surface (such as plug-in finger area), which not only affects the appearance quality, but also may cause micro-short circuit and other problems, thereby affecting the reliability and service life of the product. In addition, the carbon powder cleaning work in the laser processing process also increases the production cost and operation complexity. SUMMARY
[0004] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide an FPC ultra-high-precision shape punching device, which can ensure that the FPC shape punching precision reaches ±0.05mm while maintaining efficient production, meeting the strict requirements of the high-end market.
[0005] In order to solve the above problems, the utility model adopts the technical scheme as follows: a kind of FPC ultra-high-precision profile punching device, it include: upper die fixed plate, punch plate assembly, movable die plate, lower die plate, lower die fixed plate and punch, the upper die fixed plate, the punch plate assembly and the movable die plate are sequentially fixed by screw from top to bottom, the lower die plate and the lower die fixed plate are fixed by screw, the FPC to be punched can be placed between the movable die plate and the lower die plate, the punch is vertically arranged on the punch plate assembly, and coaxially arranged with blanking hole on the lower die plate, the movable die plate is used to press the FPC and guide the punch movement, so that FPC is punched by the punch, the punch can cooperate with the blanking hole to cut the FPC and punch the edge material to the blanking hole.
[0006] Compared with prior art, the utility model has the beneficial effect that through the combination of upper die fixed plate, punch plate assembly, movable die plate, lower die plate, lower die fixed plate and punch, high-precision punching and cutting of FPC material are realized. The design of the device not only ensures the coaxial arrangement of the punch and the blanking hole on the lower die plate in the vertical direction, but also ensures the stability and accuracy of the FPC material during the punching process through the pressing action of the movable die plate. And through the advanced CCD recognition technology, the position and shape of the FPC are accurately identified before punching, ensuring that the shape tolerance of each punching can reach ±0.05mm, and compared with laser processing, the device will not produce carbon powder residue during the punching process, thereby avoiding the problem of micro-short circuit caused by incomplete removal of carbon powder, which not only improves the reliability of the product, but also saves the tedious step of manual cleaning of carbon powder, reducing production cost. Moreover, the device can adjust the position of the mold in real time during the punching process through the automatic compensation function, ensuring that high precision can be maintained even if the material is slightly deformed. In addition, the synchronous movement recognition alignment technology of the upper and lower dies ensures that each punching is accurate, reduces manual intervention and improves production efficiency.
[0007] The punching device described above, the punch plate assembly includes a punch baffle and a punch fixed plate, the punch baffle is fixed to the bottom of the upper die fixed plate, and the punch fixed plate is fixed to the bottom of the punch baffle.
[0008] The punching device described above, a spring is provided between the punch fixed plate and the movable die plate to provide elastic compensation during punching.
[0009] The punching device described above further includes a CCD recognition system for reading the reference point on the FPC to guide the movement of the upper die fixed plate and the lower die fixed plate to the punching position.
[0010] The punching device described above, the alignment mode between the upper die fixed plate and the lower die fixed plate is a guide pillar type alignment.
[0011] The die cutting device, the lower die fixed plate comprises a first lower die fixed plate and a second lower die fixed plate, the first lower die fixed plate is fixed to the bottom of the lower die plate, and the second lower die fixed plate is fixed to the bottom of the first lower die fixed plate.
[0012] The die cutting device, the upper die fixed plate and the punch baffle plate are alternately fixed by using upper die plate screws and baffle plate screws.
[0013] The die cutting device, the punch baffle plate and the punch fixed plate are fixed by using fixed plate screws.
[0014] The die cutting device, the punch baffle plate, the punch fixed plate and the movable die plate are fixed by using movable die plate screws.
[0015] The die cutting device, the lower die plate and the lower die fixed plate are fixed by using lower die plate screws. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the die cutting device explosion map of the embodiment of the utility model;
[0017] Figure 2 It is the die cutting device structure schematic drawing of the embodiment of the utility model;
[0018] Figure 3 It is the die cutting device sectional view of the embodiment of the utility model;
[0019] Figure 4 It is the structure schematic drawing of the punch fixed plate of the die cutting device of the embodiment of the utility model;
[0020] Explanation of Figure Mark: 100 upper die fixed plate, 110 upper die plate screw, 200 punch plate assembly, 210 punch baffle plate, 211 baffle plate screw, 220 punch fixed plate, 300 movable die plate, 400 lower die plate, 410 blanking hole, 500 lower die fixed plate, 510 first lower die fixed plate, 520 second lower die fixed plate, 600 punch, 530 lower die plate screw. DETAILED DESCRIPTION
[0021] The embodiment of the utility model is described in detail below, and reference is made to Figures 1 to 4The embodiment of the utility model provides a kind of FPC ultra-high-precision profile punching device, comprising: upper die fixed plate 100, punch plate assembly 200, movable die plate 300, lower die plate 400, lower die fixed plate 500 and punch 600, upper die fixed plate 100, punch plate assembly 200 and movable die plate 300 are sequentially fixed by screw from top to bottom, lower die plate 400 and lower die fixed plate 500 are fixed by screw, the FPC to be punched can be placed between movable die plate 300 and lower die plate 400, punch 600 is vertically arranged on punch plate assembly 200 downwards, and coaxially arranged with blanking hole 410 on lower die plate 400, movable die plate 300 is used to press FPC and guide punch 600 movement, so that FPC is punched by punch 600, punch 600 can cooperate with blanking hole 410 to cut FPC and punch scrap to blanking hole 410.And, the punching device further includes CCD identification system, and the CCD identification system is used to read fiducial point on FPC, and guide upper die fixed plate 100 and lower die fixed plate 500 to move to the stamping position.CCD identification system can automatically identify and locate specific mark or feature point (such as mark point) on workpiece, and guide mechanical equipment to carry out accurate operation according to these information.In FPC (flexible printed circuit board) ultra-high-precision profile punching device, CCD identification system is mainly used to ensure accurate positioning of FPC product during stamping, to avoid stamping deviation caused by manual operation or mechanical positioning error.
[0022] Further, with reference to Figure 1 And Figure 2 The utility model realizes high-precision stamping and cutting of FPC material by the combination of upper die fixed plate 100, punch plate assembly 200, movable die plate 300, lower die plate 400, lower die fixed plate 500 and punch 600.The design of the device not only ensures the coaxial arrangement of punch 600 and blanking hole 410 on lower die plate 400 in vertical direction, but also guarantees the stability and accuracy of FPC material during stamping process through the pressing action of movable die plate 300.Movable die plate 300 not only can press FPC material to prevent displacement during stamping process, but also can guide the movement path of punch 600, to ensure that punch 600 can accurately pass through FPC and cooperate with blanking hole 410 to complete cutting operation.This design greatly improves the precision and efficiency of stamping, reduces the scrap rate, and due to the guiding action of movable die plate 300, punch 600 can maintain consistent stamping effect on FPC materials of different thickness or hardness.In addition, the modular design of the device makes the connection between components more firm, and disassembly, assembly and maintenance are more convenient, prolonging the service life of the equipment.
[0023] Further, the punch plate assembly 200 includes a punch baffle plate 210 fixed to the bottom of the upper die fixed plate 100 and a punch fixed plate 220 fixed to the bottom of the punch baffle plate 210. This layered design not only enhances the overall structural strength of the punch plate assembly 200, but also provides more stable support for the punch 600. As an intermediate layer, the punch baffle plate 210 plays a buffering and protective role, preventing the punch 600 from being affected by external impact or vibration during high-speed movement, thereby prolonging the service life of the punch 600. At the same time, the fixed position of the punch fixed plate 220 is closer to the punch 600, which can better control the movement trajectory of the punch 600, ensuring that it always moves vertically downward during stamping, avoiding stamping errors caused by the deflection of the punch 600.
[0024] Further, the punch fixed plate 220 is provided with an elastic member between the movable die plate 300, which is used to provide elastic compensation during stamping. Of course, the specific position and type of the elastic member are not limited in the utility model, and preferably, the elastic member is a spring. The elastic member can absorb part of the impact force during stamping, reducing the hard contact between the punch 600 and the FPC material, thereby effectively preventing the punch 600 from damaging the FPC surface or causing material deformation due to excessive pressure. In addition, the elastic member can also automatically adjust the stamping force according to the thickness and hardness of the FPC material, ensuring that each stamping can achieve the best effect. Especially when dealing with different batches or different types of FPC materials, the self-adaptive characteristics of the elastic member can significantly improve the stability and consistency of stamping, reducing the scrap rate. Further, the alignment mode between the upper die fixed plate 100 and the lower die fixed plate 500 is a guide pillar type alignment. The guide pillar type alignment is a widely used high-precision alignment technology, which sets multiple guide pillars and guide sleeves between the upper die fixed plate 100 and the lower die fixed plate 500, ensuring that the upper die always maintains a stable guide path during downward movement, avoiding stamping errors caused by die offset or vibration. The precise fit between the guide pillars and the guide sleeves can provide extremely high alignment accuracy, ensuring that the punch 600 and the blanking hole 410 on the lower die plate 400 are always coaxially aligned, thereby achieving precise stamping effect.
[0025] Further, the lower die fixing plate 500 includes a first lower die fixing plate 510 and a second lower die fixing plate 520, the first lower die fixing plate 510 is fixed to the bottom of the lower die plate 400, and the second lower die fixing plate 520 is fixed to the bottom of the first lower die fixing plate 510. The main purpose of this layered design is to enhance the overall structural strength of the lower die fixing plate 500, ensuring that it can withstand greater impact force and pressure during stamping, and remain stable. The first lower die fixing plate 510 directly contacts the lower die plate 400, serving as a support and fixing the lower die plate 400, while the second lower die fixing plate 520 further enhances the rigidity of the entire lower die system, preventing the lower die plate 400 from deforming or displacing during stamping. In addition, this layered design also facilitates the disassembly and maintenance of the lower die fixing plate 500, allowing users to quickly replace or adjust the lower die plate 400 as needed, improving the flexibility and adaptability of the equipment. Especially for FPC products of different sizes or shapes, users can meet different processing needs by replacing lower die plates 400 of different specifications.
[0026] Further, the upper die fixing plate 100 and the punch baffle 210 are fixed alternately by the upper die plate screw 110 and the baffle screw 211. The punch baffle 210 and the punch fixing plate 220 are fixed by the fixing plate screw. The punch baffle 210, the punch fixing plate 220 and the movable die plate 300 are fixed by the movable die plate screw. The lower die plate 400 and the lower die fixing plate 500 are fixed by the lower die plate screw 530. Referring to Figure 3 , of course, the specific position and structure of the upper die plate screw 110, the baffle screw 211, the fixing plate screw, the movable die plate screw and the lower die plate screw 530 are not limited by the utility model, the upper die fixing plate 100 and the punch baffle 210 are fixed alternately by the upper die plate screw 110 and the baffle screw 211. The structure design of this alternative fixation not only enhances the connection strength between the upper die fixing plate 100 and the punch baffle 210, but also ensures the close cooperation between the two, avoiding stamping errors caused by loose or slipping screws. The alternative arrangement of the upper die plate screw 110 and the baffle screw 211 makes the distribution of fixing points more uniform, effectively dispersing the stress generated during stamping, preventing deformation or damage caused by excessive local stress. In addition, this alternative fixation structure also facilitates the installation and removal of screws, allowing users to quickly replace or adjust the punch baffle 210 as needed, improving the maintenance convenience of the equipment.
[0027] Referring to Figure 1 and Figure 4The punch stop plate 210 and the punch fixing plate 220 are fixed by using fixing plate screws. The main purpose of this fixing method is to ensure the close connection between the punch stop plate 210 and the punch fixing plate 220, and prevent the loosening or displacement of the punch 600 during high-speed movement due to vibration or impact. The use of fixing plate screws not only enhances the connection strength between the punch stop plate 210 and the punch fixing plate 220, but also ensures that the movement trajectory of the punch 600 always remains stable, avoiding stamping errors caused by the deflection of the punch 600. The punch stop plate 210, the punch fixing plate 220 and the movable die plate 300 are fixed by using movable die plate screws. The main purpose of this fixing method is to ensure the close connection between the punch stop plate 210, the punch fixing plate 220 and the movable die plate 300, and prevent the loosening or displacement of the punch 600 during high-speed movement due to vibration or impact. The use of movable die plate screws not only enhances the connection strength between the three components, but also ensures that the movement trajectory of the punch 600 always remains stable, avoiding stamping errors caused by the deflection of the punch 600. The lower die plate 400 and the lower die fixing plate 500 are fixed by using lower die plate screws 530. The main purpose of this fixing method is to ensure the close connection between the lower die plate 400 and the lower die fixing plate 500, and prevent the loosening or displacement of the lower die plate 400 during stamping due to vibration or impact. The use of lower die plate screws 530 not only enhances the connection strength between the lower die plate 400 and the lower die fixing plate 500, but also ensures the stability of the lower die plate 400, avoiding stamping errors caused by the deflection of the lower die plate 400.
[0028] It should be noted that in the description of the utility model, if there are references to orientation descriptions, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc., they are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed or operated in a specific orientation, and cannot be understood as a limitation on the utility model.
[0029] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is two and more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If there is a description of first or second, etc., it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.
[0030] In the description of the utility model, unless otherwise explicitly limited, the words set, installed, connected, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.
[0031] The above embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and substitutions made by those skilled in the art on the basis of the present application belong to the scope of protection of the present application.
Claims
1. An FPC ultra-high precision profile punching device, characterized in that, The application relates to a die cutting device for FPC (Flexible Printed Circuit), which comprises an upper die fixing plate (100), a punch plate assembly (200), a movable die plate (300), a lower die plate (400), a lower die fixing plate (500) and a punch (600), the upper die fixing plate (100), the punch plate assembly (200) and the movable die plate (300) are sequentially fixed from top to bottom through screws, the lower die plate (400) and the lower die fixing plate (500) are fixed through screws, an FPC to be die cut can be placed between the movable die plate (300) and the lower die plate (400), the punch (600) is vertically arranged on the punch plate assembly (200) and coaxially arranged with a blanking hole (410) on the lower die plate (400), the movable die plate (300) is used for pressing the FPC and guiding the punch (600) to move, so that the punch (600) can cut the FPC and punch the edge material into the blanking hole (410) when the FPC is punched by the punch (600). The punch plate assembly (200) comprises a punch baffle (210) and a punch fixing plate (220), the punch baffle (210) is fixed at the bottom of the upper die fixing plate (100), and the punch fixing plate (220) is fixed at the bottom of the punch baffle (210).
2. The die cutting apparatus of claim 1, wherein, Elastic elements are arranged between the punch fixing plate (220) and the movable die plate (300) to provide elastic compensation during punching.
3. The die cutting apparatus of claim 2, wherein, A CCD identification system is further arranged, which is used for reading reference points on the FPC and guiding the upper die fixing plate (100) and the lower die fixing plate (500) to move to a punching position.
4. The die cutting apparatus of claim 1, wherein, The alignment mode between the upper die fixing plate (100) and the lower die fixing plate (500) is a guide pillar type alignment.
5. The die cutting apparatus of claim 1, wherein, The lower die fixing plate (500) comprises a first lower die fixing plate (510) and a second lower die fixing plate (520), the first lower die fixing plate (510) is fixed at the bottom of the lower die plate (400), and the second lower die fixing plate (520) is fixed at the bottom of the first lower die fixing plate (510).
6. The die cutting apparatus of claim 1, wherein, Upper die plate screws (110) and baffle screws (211) are alternately arranged between the upper die fixing plate (100) and the punch baffle (210).
7. The die cutting apparatus of claim 2, wherein, The punch baffle (210) and the punch fixing plate (220) are fixed through fixing plate screws.
8. The die cutting apparatus of claim 2, wherein, The punch baffle (210), the punch fixing plate (220) and the movable die plate (300) are fixed through movable die plate screws.
9. The die cutting apparatus of claim 2, wherein, The lower die plate (400) and the lower die fixing plate (500) are fixed through lower die plate screws (530).
10. The die cutting apparatus of claim 1, wherein,