Steel sheet pressing jig, steel sheet pressing mechanism and machining equipment

By designing pressing grooves and positioning structures that adapt to different thicknesses, the problem of existing steel sheet pressing fixtures being unable to apply pressure evenly has been solved, achieving uniform hot pressing effect and cost optimization for flexible circuit boards.

CN223639448UActive Publication Date: 2025-12-05SHENZHEN JINGCHENGDA CIRCUIT TECH
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Patent Information

Application Number
CN202422840999.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-12-05
Estimated Expiration
2034-11-21

AI Technical Summary

Technical Problem

Existing steel sheet pressing fixtures cannot apply pressure evenly when processing 3D steel sheets of different thicknesses, resulting in some steel sheets not being able to lie on the same plane as the upper surface of the synthetic stone cover, which affects the pressing effect of the flexible circuit board.

Method used

A steel sheet pressing fixture is designed, including a base plate and a cover plate. The cover plate has a pressing groove that matches the thickness of the steel sheet. The base plate has multiple positioning structures, and the cover plate is close to the positioning structures. Positioning holes and positioning pins are provided. The positioning pins cooperate with the pin holes of the flexible circuit board. The cover plate has pin holes that cooperate with the positioning pins. The base plate has adjustment holes, and the positioning pins are detachably installed in the adjustment holes. The groove depth of the pressing groove matches the thickness of the steel sheet, and the inner contour matches the outer contour of the steel sheet.

Benefits of technology

It achieves uniform pressing of steel sheets of different thicknesses, prevents the steel sheets from tilting, improves the hot pressing effect of flexible circuit boards, meets technical requirements, and reduces usage costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223639448U_ABST
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Abstract

The utility model discloses a steel sheet pressing jig, mechanism and processing equipment, which are used for pressing a flexible circuit board and a plurality of steel sheets arranged on the flexible circuit board, at least two steel sheets are different in thickness, the steel sheet pressing jig comprises a bottom plate and a cover plate, the cover plate is movably covered on the bottom plate, and the cover plate is arranged on the bottom plate. A positioning structure is arranged on the bottom plate to position the flexible circuit board, a plurality of pressing grooves are formed in the side, close to the bottom plate, of the cover plate, the pressing grooves and the steel sheets are arranged in a one-to-one correspondence mode, and the groove depth of the pressing grooves is matched with the thickness of the corresponding steel sheets. The inner contours of the pressing grooves are matched with the outer contours of the steel sheets corresponding to the pressing grooves. The pressing jig not only can ensure that the steel sheets cannot incline during pressing, but also can ensure that the steel sheets with different thicknesses can be subjected to uniform pressure, so that the hot pressing effect of the flexible circuit board is improved, and the performance requirements of the steel sheets are met.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a circuit board processing technical field especially relates to a steel sheet press fit jig, mechanism and processing equipment. BACKGROUND

[0002] Flexible circuit board is also called "soft board", it is the printed circuit made with flexible insulating substrate, and the flexible circuit board can adopt the design of superposition, and part of the area of the flexible circuit board needs to use 3D steel sheet as support, so that it has sufficient strength, and the 3D steel sheet needs to be pressed by a steel sheet press fit jig after being attached to the flexible circuit board.

[0003] The existing steel sheet press fit jig comprises an alloy base plate and a synthetic stone cover plate, the flexible circuit board is positioned and placed on the alloy base plate during pressing, and the synthetic stone cover plate is provided with a window corresponding to the 3D steel sheet, so that the 3D steel sheet is located at the window, and the surface of the 3D steel sheet and the upper surface of the synthetic stone cover plate are located in the same plane, then the steel sheet press fit jig is placed in a press for pressing, the 3D steel sheet is bonded on the flexible circuit board by the press under high temperature and high pressure, and the window on the synthetic stone cover plate can ensure that the 3D steel sheet does not tilt during pressing.

[0004] However, the thickness of the 3D steel sheet at each position on part of the flexible circuit board is inconsistent, the 3D steel sheet with large thickness will protrude from the window, the 3D steel sheet with small thickness cannot protrude from the window, and the upper surface of the 3D steel sheet with small thickness cannot be located in the same plane with the upper surface of the synthetic stone cover plate, so that the flexible circuit board cannot ensure that all the 3D steel sheets are subjected to pressure during pressing by the steel sheet press fit jig, thereby affecting the performance of the 3D steel sheet. UTILITY MODEL CONTENTS

[0005] The utility model wants to solve the technical problem that a kind of steel sheet press fit jig is provided to solve the problem that the pressing effect of the existing steel sheet press fit jig on the flexible circuit board with different height 3D steel sheet is poor.

[0006] To solve the above technical problems, the technical scheme adopted by the utility model is as follows: a steel sheet press fit jig is provided, which is used for pressing a flexible circuit board and a plurality of steel sheets arranged on the flexible circuit board, the thickness of at least two of the steel sheets is different, the steel sheet press fit jig comprises a base plate and a cover plate, the cover plate is movably arranged on the base plate, the base plate is provided with a positioning structure for positioning the flexible circuit board, the side of the cover plate close to the base plate is provided with a plurality of pressing grooves, the plurality of pressing grooves are one-to-one corresponding to the plurality of steel sheets, and the groove depth of the pressing groove is matched with the thickness of the corresponding steel sheet, and the inner contour of the pressing groove is matched with the outer contour of the corresponding steel sheet.

[0007] Further, the flexible circuit board is provided with a first pin hole, and the positioning structure comprises a positioning pin matched with the first pin hole.

[0008] Further, the cover plate is provided with a second pin hole matched with the positioning pin.

[0009] Further, the bottom plate is provided with a plurality of adjusting holes, and the positioning pin is arranged in the adjusting hole.

[0010] Further, the depth of the pressing groove is 0-100 μm larger than the thickness of the corresponding steel sheet.

[0011] Further, the positioning structure comprises a receiving groove, and the inner contour of the receiving groove matches the outer contour of the flexible circuit board.

[0012] Further, the depth of the receiving groove matches the thickness of the flexible circuit board.

[0013] Further, the cover plate is a synthetic stone cover plate, and the bottom plate is an alloy bottom plate.

[0014] Another purpose of the utility model lies in providing a steel sheet pressing mechanism comprising the above steel sheet pressing jig.

[0015] Another purpose of the utility model lies in providing a processing equipment comprising the above steel sheet pressing mechanism.

[0016] The steel sheet pressing jig provided by the utility model has the cover plate provided with the pressing grooves with different depths corresponding to the steel sheets with different thicknesses, and the inner contour of the pressing groove matches the outer contour of the corresponding steel sheet, so that the steel sheet can not be inclined during pressing, and the steel sheets with different thicknesses can be subjected to uniform pressure, thereby improving the hot pressing effect of the flexible circuit board and meeting the performance requirements of the steel sheet. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a sectional view of the steel sheet pressing jig in one embodiment of the utility model;

[0018] Figure 2 is a sectional view of the steel sheet pressing jig in another embodiment of the utility model.

[0019] LABEL EXPLANATION

[0020] 1, bottom plate; 11, positioning pin; 12, adjusting hole; 13, receiving groove;

[0021] 2, cover plate; 21, first pressing groove; 22, second pressing groove; 23, second pin hole; 24, heating element;

[0022] 3, flexible circuit board; 31, first pin hole;

[0023] 4, first steel sheet;

[0024] 5, second steel sheet. DETAILED DESCRIPTION

[0025] To illustrate the technical content of the utility model, the purposes and effects achieved, the following will be described in conjunction with the embodiments and the accompanying drawings.

[0026] Please refer to Figures 1 to 2 A steel sheet press-fit jig is used for press fitting a flexible circuit board 3 and a plurality of steel sheets arranged on the flexible circuit board 3, the thicknesses of at least two of the steel sheets are different from each other, and the steel sheet press-fit jig comprises a bottom plate 1 and a cover plate 2, the cover plate 2 is movably arranged on the bottom plate 1, the bottom plate 1 is provided with a positioning structure to position the flexible circuit board 3, the side of the cover plate 2 close to the bottom plate 1 is provided with a plurality of press-fit grooves, the plurality of press-fit grooves are arranged one-to-one corresponding to the plurality of steel sheets, the groove depth of the press-fit groove is matched with the thickness of the corresponding steel sheet, and the inner contour of the press-fit groove is matched with the outer contour of the corresponding steel sheet.

[0027] From the above description, it can be seen that the steel sheet press-fit jig provided by the utility model has the following beneficial effects: the cover plate 2 of the steel sheet press-fit jig is provided with press-fit grooves with different groove depths corresponding to steel sheets with different thicknesses, and the inner contour of the press-fit groove is matched with the outer contour of the corresponding steel sheet, so that the press-fit jig can not only ensure that the steel sheet will not be inclined during press fitting, but also ensure that steel sheets with different thicknesses can be subjected to uniform pressure, thereby improving the hot-pressing effect of the flexible circuit board 3 and meeting the performance requirements of the steel sheet.

[0028] Further, the flexible circuit board 3 is provided with a first pin hole 31, and the positioning structure comprises a positioning pin 11 matched with the first pin hole 31.

[0029] From the above description, it can be seen that the flexible circuit board 3 and the bottom plate 1 can be positioned through the first pin hole 31 and the positioning pin 11, which can further improve the hot-pressing effect of the flexible circuit board 3.

[0030] Further, the cover plate 2 is provided with a second pin hole 23 matched with the positioning pin 11.

[0031] From the above description, it can be seen that the cover plate 2, the flexible circuit board 3 and the cover plate 2 can be accurately positioned, which can improve the positioning efficiency and positioning accuracy of the cover plate 2 and the flexible circuit board 3.

[0032] Further, the bottom plate 1 is provided with a plurality of adjusting holes 12, and the positioning pin 11 is arranged in the adjusting hole 12.

[0033] From the above description, the bottom plate 1 can install the positioning pin 11 according to the flexible circuit board 3 to be pressed, and select the corresponding cover plate 2 according to the flexible circuit board 3, so that one bottom plate 1 can be used for pressing a plurality of different flexible circuit boards 3, which can reduce the use cost of the steel sheet pressing jig.

[0034] Further, the depth of the pressing groove is 0-100 μm larger than the thickness of the corresponding steel sheet.

[0035] Further, the positioning structure comprises a receiving groove 13, and the inner contour of the receiving groove 13 matches the outer contour of the flexible circuit board 3.

[0036] Further, the depth of the receiving groove 13 matches the thickness of the flexible circuit board 3.

[0037] From the above description, the receiving groove 13 can have a good positioning effect on the flexible circuit board 3.

[0038] Further, the cover plate 2 is a synthetic stone cover plate, and the bottom plate 1 is an alloy bottom plate.

[0039] Another purpose of the utility model is to provide a steel sheet pressing mechanism of a flexible circuit board 3, which comprises the above steel sheet pressing jig.

[0040] From the above description, the steel sheet pressing mechanism provided by the utility model has at least all the beneficial effects of the above steel sheet pressing jig. As a preferred, the steel sheet pressing mechanism can be provided with a driving member, which is in transmission connection with the cover plate 2 to drive the cover plate 2 to complete the pressing action, so that the steel sheets with different thicknesses can be uniformly stressed.

[0041] Another purpose of the utility model is to provide a processing equipment, which comprises the above steel sheet pressing mechanism.

[0042] From the above description, the processing equipment provided by the utility model has at least all the beneficial effects of the above steel pressing mechanism.

[0043] Embodiment one

[0044] Please refer to Figure 1 The embodiment one of the utility model provides a steel sheet pressing jig, which is used for pressing a flexible circuit board 3 and a plurality of steel sheets arranged on the flexible circuit board 3, wherein the thicknesses of the at least two steel sheets are different. As an example, the steel sheet pressing jig provided in the embodiment one is used for pressing the flexible circuit board 3 and the first steel sheet 4 and the second steel sheet 5 arranged on the flexible circuit board 3 as shown in the figure, and the thickness H1 of the first steel sheet 4 is greater than the thickness H2 of the second steel sheet 5. Figure 1 ​

[0045] In the first embodiment, the steel sheet pressing jig comprises a bottom plate 1 and a cover plate 2, the cover plate 2 is made of synthetic stone material, and the bottom plate 1 is made of alloy material. The cover plate 2 is movably arranged on the bottom plate 1, the bottom plate 1 is provided with a positioning structure for positioning the flexible circuit board 3, and the side of the cover plate 2 close to the bottom plate 1 is provided with a first pressing groove 21 and a second pressing groove 22, wherein the first pressing groove 21 is arranged corresponding to the first steel sheet 4, and the second pressing groove 22 is arranged corresponding to the second steel sheet 5. Specifically, the inner contour of the first pressing groove 21 matches the outer contour of the first steel sheet 4, and the groove depth D1 of the first pressing groove 21 is 0-100 μm larger than the thickness H1 of the first steel sheet 4, that is, D1-H1=0 μm-100 μm. The inner contour of the second pressing groove 22 matches the outer contour of the second steel sheet 5, and the groove depth D2 of the second pressing groove 22 is 0-100 μm larger than the thickness H2 of the second steel sheet 5, that is, D2-H2=0 μm-100 μm. It is easy to understand that if the thickness H2 of the second steel sheet 5 is 200 μm, the groove depth D2 of the second pressing groove 22 can be set to 200-300 μm.

[0046] For further reference Figure 1 In the first embodiment, the flexible circuit board 3 is provided with a first pin hole 31, and the positioning structure comprises a positioning pin 11 matched with the first pin hole 31. Correspondingly, the cover plate 2 is provided with a second pin hole 23 matched with the positioning pin 11. The cover plate 2, the bottom plate 1 and the flexible circuit board 3 can be accurately positioned, which can ensure that the first pressing groove 21 and the second pressing groove 22 of the cover plate 2 can be conveniently positioned and pressed with the first steel sheet 4 and the second steel sheet 5 of the flexible circuit board 3, respectively.

[0047] As a preferred, in the first embodiment, the bottom plate 1 is provided with a plurality of adjusting holes 12, and the positioning pin 11 is detachably arranged in the adjusting hole 12. The steel sheet pressing jig provided in the first embodiment can meet the application requirements of various flexible circuit boards 3 through one bottom plate 1, so that the flexibility and economy of the steel sheet pressing jig are better.

[0048] In the first embodiment, in order to further improve the pressing effect of the steel sheet and the flexible circuit board 3 of the steel sheet pressing jig, a heating element 24 is arranged at the groove bottom of the first pressing groove 21 and the second pressing groove 22, which can improve the high-temperature pressing effect of the flexible circuit board 3 and the steel sheet.

[0049] The steel sheet pressing jig provided in the first embodiment can be applied to the steel sheet pressing mechanism of the flexible circuit board 3 processing equipment, and the bottom plate 1 can be in driving connection with a driving element to drive the cover plate 2 to realize pressing through the driving element, so that the first steel sheet 4 and the second steel sheet 5 can be subjected to uniform pressure.

[0050] Embodiment two

[0051] Please refer to Figure 2 The second embodiment of the utility model is based on the first embodiment and makes further improvement on the positioning structure on the bottom plate 1, and the second embodiment of the utility model is: the positioning structure comprises a containing groove 13, the containing groove 13 is used for containing the flexible circuit board 3, and the inner contour of the containing groove 13 matches the outer contour of the flexible circuit board 3. As a preferred, the cover plate 1 can be provided with a press-fit protrusion, the press-fit protrusion is arranged corresponding to the containing groove 13, and a press-fit recess is arranged on the press-fit protrusion to apply uniform pressure to the steel sheet and the flexible circuit board 3, thereby guaranteeing the pressure effect.

[0052] In summary, the cover plate 2 of the steel sheet press-fit jig provided by the utility model is provided with press-fit recesses with different groove depths corresponding to steel sheets with different thicknesses, and the inner contour of the press-fit recess matches the outer contour of the corresponding steel sheet. The press-fit jig can not only guarantee that the steel sheet does not tilt during press fitting, but also can guarantee that steel sheets with different thicknesses can be subjected to uniform pressure, thereby improving the hot-pressing effect of the flexible circuit board 3 and meeting the performance requirements of the steel sheet.

[0053] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent transformation or direct or indirect application in the related technical field based on the content of the utility model specification and drawings is also included in the patent protection range of the utility model.

Claims

1. A steel sheet pressing fixture for pressing a flexible circuit board and a plurality of steel sheets disposed on the flexible circuit board, wherein at least two of the steel sheets have different thicknesses, characterized in that, The steel sheet press-fit jig comprises a bottom plate and a cover plate, the cover plate is movably arranged on the bottom plate, the bottom plate is provided with a positioning structure for positioning the flexible circuit board, the side of the cover plate close to the bottom plate is provided with a plurality of press-fit grooves, the press-fit grooves are one-to-one corresponding to the steel sheets, the groove depth of the press-fit grooves matches the thickness of the corresponding steel sheets, and the inner contour of the press-fit grooves matches the outer contour of the corresponding steel sheets.

2. The steel sheet press bonding jig according to claim 1, characterized by The flexible circuit board is provided with a first pin hole, and the positioning structure comprises a positioning pin matched with the first pin hole.

3. The steel sheet press bonding jig according to claim 2, characterized by The cover plate is provided with a second pin hole matched with the positioning pin.

4. The steel sheet press bonding jig according to claim 2, characterized by The bottom plate is provided with a plurality of adjusting holes, and the positioning pin is arranged in the adjusting hole.

5. The steel sheet press bonding jig according to claim 1, wherein The groove depth of the press-fit grooves is 0-100μm larger than the thickness of the corresponding steel sheets.

6. The steel sheet press bonding jig according to claim 1, wherein The positioning structure comprises a containing groove, and the inner contour of the containing groove matches the outer contour of the flexible circuit board.

7. The steel sheet press bonding jig according to claim 6, characterized by The groove depth of the containing groove matches the thickness of the flexible circuit board.

8. The steel sheet press bonding jig according to claim 1, wherein The cover plate is a synthetic stone cover plate, and the bottom plate is an alloy bottom plate.

9. A steel sheet pressing mechanism characterized by comprising: The steel sheet press-fit jig comprises the steel sheet press-fit jig according to any one of claims 1-8.

10. A processing apparatus characterized by comprising: The steel sheet press-fit mechanism comprises the steel sheet press-fit jig according to claim 9.