CN219577765U

CN219577765U - Jig for improving frame pressing precision

Info

Publication number: CN219577765U
Application number: CN202320557700.5U
Authority: CN
Inventors: 徐承升; 周健辉; 吴美丽; 廖发盆; 郑海平
Original assignee: Dongguan Cojoin Circuits Co ltd
Current assignee: Dongguan Cojoin Circuits Co ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-08-22
Anticipated expiration: 2033-03-20

Abstract

The utility model discloses a jig for improving frame pressing precision, which relates to the technical field of automobile sensor production and comprises a base and a mounting seat on one side of the top of the base, wherein the top of the base is fixedly connected with a placing seat, the top of the placing seat is provided with a frame plate, the top of the frame plate is provided with a PCB (printed Circuit Board), a plurality of groups of exposure nails are arranged above the PCB, and an inner cavity of the placing seat is provided with a fixing mechanism. According to the jig for improving the frame pressing precision, the sheet nails are changed into the exposure nails, the exposure nails are used for fixing the PCB and the frame plate, the size of the exposure nails is equal to that of the holes of the PCB and the frame plate, meanwhile, after the exposure nails are fixed, the exposure nails, the PCB and the frame plate are fixed together, the rear pressing plate is used for pressing the plate, and after the pressing plate is used for taking down the exposure nails, the frame pressing precision is reduced from +/-0.10mm to +/-0.065mm through adjustment of the processing method, meanwhile, the problem of deviation pressing can be completely avoided, and the product fixing is better.

Description

Jig for improving frame pressing precision

Technical Field

The utility model relates to the technical field of automobile sensor production, in particular to a jig for improving frame pressing precision.

Background

The sensor for car is an input device of computer system of car, it converts various working condition information in car running, such as car speed, temp. of various media and running condition of engine, etc. into electric signal, and then it is fed into computer so as to make the engine be in optimum working state.

At present, the jig during sensor production adopts a method of sheet nail alignment and frame pressing, the alignment tolerance of a PCB and a frame plate is controlled to +/-0.10mm, and meanwhile, after the sheet nail is taken down after prepressing, if the product is not prepressed and fixed well, the problem of pressure deviation exists, and the product is uncontrollable, so that the practicability is poor.

Disclosure of Invention

The present utility model has been made in view of the above problems with the conventional jig for improving the accuracy of pressing a frame.

Therefore, the utility model aims to provide a jig for improving the frame pressing precision, which solves the problems that the existing jig adopts a method for pressing a frame by sheet nails in the production of a sensor, the alignment tolerance of a PCB and a frame plate is controlled to +/-0.10mm, and meanwhile, after the sheet nails are taken down after pre-pressing, the product is out of control if the pre-pressing is not performed, and the product is out of control when the pre-pressing is not well fixed, so that the practicability is poor.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a tool of frame precision is pressed in improvement, includes mount pad of base and base top one side, the top fixedly connected with of base places the seat, the top of placing the seat is provided with the deckle board, the top of deckle board is provided with the PCB board, the top of PCB board is provided with multiunit exposure nail, the inner chamber of placing the seat is provided with fixed establishment, through with the fixed back of exposure nail, exposure nail and PCB board, deckle board together fixed back clamp plate, take down the exposure nail after the clamp plate again, can avoid pressing the partial problem completely, make the product fixed better.

Preferably, the fixing mechanism includes: the two-way threaded rods A are arranged at the tops of two sides of the inner cavity of the placement seat, two-way threaded rods B are arranged at the bottoms of two ends of the inner cavity of the placement seat, the two sides of the top of the placement seat are provided with the communication grooves A, and the two ends of the top of the placement seat are provided with the communication grooves B to play a limiting role.

Preferably, the surface thread bush of two-way threaded rod A is equipped with two sets of connecting blocks A, and connecting block A's top extends to the outside of placing the seat through intercommunication groove A, two sets of connecting block B are equipped with to two sets of connecting block B to the surface thread bush of two-way threaded rod B, and connecting block B's top extends to the outside of placing the seat through intercommunication groove B, connecting block A's top fixedly connected with splint A, connecting block B's top fixedly connected with splint B, two-way threaded rod A and two-way threaded rod B's one end all extends to the outside of placing the seat.

Preferably, the top of the frame plate is provided with a plurality of groups of limiting holes A, the limiting holes A penetrate through the frame plate, the top of the PCB plate is provided with a plurality of groups of limiting holes B, and the limiting holes B penetrate through the PCB plate.

Further, the outer diameter of the exposure nail, the inner diameters of the limiting hole A and the limiting hole B are equal to each other, so that the stamping quality is improved.

Preferably, the inner chamber of mount pad is provided with two sets of hydraulic push rods, hydraulic push rod's output extends to the outside of mount pad, hydraulic push rod's output is provided with the punching press board seat, and the punching press board seat is located the top of placing the seat, conveniently carries out punching press operation.

In the technical scheme, the utility model has the technical effects and advantages that:

1. according to the utility model, the sheet nails are changed into the exposure nails, the exposure nails are used for fixing the PCB and the frame plate, the size of the exposure nails is equal to that of the holes of the PCB and the frame plate, meanwhile, after the exposure nails are fixed, the exposure nails, the PCB and the frame plate are fixed together, then the exposure nails are taken down after the pressing plate is pressed, and through the adjustment of the processing method, the frame pressing precision is reduced from +/-0.10mm to +/-0.065mm, meanwhile, the problem of pressure deviation can be completely avoided, and the product fixing is better.

2. According to the utility model, during stamping, the two groups of clamping plates A and B can clamp and fix the frame plate and the PCB from two sides and two ends in multiple directions by rotating the two-way threaded rod A and the two-way threaded rod B, so that the frame plate and the PCB can be kept fixed in the stamping process, the position deviation is avoided, the stamping accuracy and quality are improved, and the qualification rate of products is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a front cross-sectional perspective view of the present utility model;

FIG. 3 is a bottom cross-sectional perspective view of the present utility model;

fig. 4 is a perspective view of a PCB board and a frame plate of the present utility model.

Reference numerals illustrate:

1. a base; 2. a mounting base; 3. a placement seat; 4. a hydraulic push rod; 5. a stamping plate seat; 6. a frame plate; 7. a PCB board; 8. exposing nails; 9. a limiting hole A; 10. a limiting hole B; 11. a communication groove A; 12. a communication groove B; 13. a clamping plate A; 14. a clamping plate B; 15. a connecting block A; 16. a connecting block B; 17. a bidirectional threaded rod A; 18. and a bidirectional threaded rod B.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

The embodiment of the utility model discloses a jig for improving frame pressing precision.

The utility model provides a jig for improving frame pressing precision as shown in figures 1-4, which comprises a base 1 and a mounting seat 2 on one side of the top of the base 1, wherein the top of the base 1 is fixedly connected with a placement seat 3, the top of the placement seat 3 is provided with a frame plate 6, the top of the frame plate 6 is provided with a PCB 7, a plurality of groups of exposure nails 8 are arranged above the PCB 7, the inner cavity of the placement seat 3 is provided with a fixing mechanism, the top of the frame plate 6 is provided with a plurality of groups of limit holes A9, the limit holes A9 penetrate through the frame plate 6, the top of the PCB 7 is provided with a plurality of groups of limit holes B10, the limit holes B10 penetrate through the PCB 7, and the outer diameter of the exposure nails 8, the limit holes A9 and the inner diameter of the limit holes B10 are equal;

the inner chamber of mount pad 2 is provided with two sets of hydraulic push rods 4, and the output of hydraulic push rod 4 extends to the outside of mount pad 2, and the output of hydraulic push rod 4 is provided with punching press board seat 5, and punching press board seat 5 is located the top of placing seat 3.

Firstly, placing the frame plate 6 and the PCB 7 on the top of the placement seat 3, enabling the limit holes A9 and B10 on the frame plate 6 and the PCB 7 to be opposite to each other, then installing the exposure nails 8 in the limit holes B10 on the PCB 7, then starting the hydraulic push rod 4, driving the stamping plate seat 5 to move downwards by utilizing the output end of the hydraulic push rod 4, and extruding and fixing the frame plate 6 and the PCB 7, simultaneously enabling the exposure nails 8 to be extruded and fixed with the frame plate 6 and the PCB 7, after the frame plate 6 and the PCB 7 are extruded and finished, taking down the exposure nails 8, reducing the frame pressing precision from +/-0.10mm to +/-0.065mm by adjusting the processing method, and simultaneously completely avoiding the problem of pressure deviation, so that the product is better in fixing.

In order to improve the product quality, as shown in fig. 2-3, the fixing mechanism includes: the two-way threaded rod A17 arranged at the top of two sides of the inner cavity of the placement seat 3 is provided with the two-way threaded rod B18 at the bottom of two ends of the inner cavity of the placement seat 3, the two sides of the top of the placement seat 3 are provided with the communication groove A11, the two ends of the top of the placement seat 3 are provided with the communication groove B12, the surface thread bush of the two-way threaded rod A17 is provided with two groups of connecting blocks A15, the top of the connecting block A15 extends to the outside of the placement seat 3 through the communication groove A11, the surface thread bush of the two-way threaded rod B18 is provided with two groups of connecting blocks B16, the top of the connecting block B16 extends to the outside of the placement seat 3 through the communication groove B12, the top of the connecting block A15 is fixedly connected with the clamping plate A13, the top of the connecting block B16 is fixedly connected with the clamping plate B14, and one ends of the two-way threaded rod A17 and the two-way threaded rod B18 all extend to the outside of the placement seat 3.

After placing seat 3 top with frame board 6 and PCB board 7 again, through rotating two-way threaded rod A17, can make two sets of connecting blocks A15 be close to each other at the removal that two sets of splint A13 are close to each other in the surface of two-way threaded rod A17, and then drive two sets of splint A13 and be close to each other, spacing fixedly to frame board 6 from both sides, through rotating two-way threaded rod B18, can make two sets of connecting blocks B16 be close to each other at the removal that two sets of splint B18's surface is close to each other, and then drive two sets of splint B14 to be close to each other, spacing fixedly to frame board 6 from both ends, then carry out punching press processing through punching press board seat 5, guarantee that in the punching press in-process, frame board 6 and PCB board 7 can keep motionless, avoid taking place the position offset, improve the precision and the quality of punching press, improve the qualification rate of product.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides a tool of frame precision is pressed in improvement, includes mount pad (2) of base (1) and base (1) top one side, a serial communication port, the top fixedly connected with of base (1) places seat (3), the top of placing seat (3) is provided with framed board (6), the top of framed board (6) is provided with PCB board (7), the top of PCB board (7) is provided with multiunit exposure nail (8), the inner chamber of placing seat (3) is provided with fixed establishment.

2. The jig for improving frame pressing precision according to claim 1, wherein the fixing mechanism comprises: the two-way threaded rods A (17) are arranged at the tops of two sides of the inner cavity of the placement seat (3), two-way threaded rods B (18) are arranged at the bottoms of two ends of the inner cavity of the placement seat (3), the two sides of the top of the placement seat (3) are provided with the communication grooves A (11), and the two ends of the top of the placement seat (3) are provided with the communication grooves B (12).

3. The jig for improving frame pressing precision according to claim 2, wherein two groups of connecting blocks a (15) are sleeved on the surface of the bidirectional threaded rod a (17), the top of each connecting block a (15) extends to the outside of the corresponding placing seat (3) through a communication groove a (11), two groups of connecting blocks B (16) are sleeved on the surface of the bidirectional threaded rod B (18), the top of each connecting block B (16) extends to the outside of the corresponding placing seat (3) through a communication groove B (12), a clamping plate a (13) is fixedly connected to the top of each connecting block a (15), a clamping plate B (14) is fixedly connected to the top of each connecting block B (16), and one ends of each bidirectional threaded rod a (17) and each bidirectional threaded rod B (18) extend to the outside of the corresponding placing seat (3).

4. The jig for improving frame pressing precision according to claim 1, wherein a plurality of groups of limiting holes a (9) are formed in the top of the frame plate (6), the limiting holes a (9) penetrate through the frame plate (6), a plurality of groups of limiting holes B (10) are formed in the top of the PCB plate (7), and the limiting holes B (10) penetrate through the PCB plate (7).

5. The jig for improving frame pressing precision according to claim 4, wherein the outer diameter of the exposure nail (8) is equal to the inner diameters of the limiting hole A (9) and the limiting hole B (10).

6. The jig for improving frame pressing precision according to claim 1, wherein two groups of hydraulic push rods (4) are arranged in the inner cavity of the mounting seat (2), the output ends of the hydraulic push rods (4) extend to the outside of the mounting seat (2), stamping plate seats (5) are arranged at the output ends of the hydraulic push rods (4), and the stamping plate seats (5) are located above the placing seat (3).