CN220136831U

CN220136831U - Automatic test fixture capable of being compatible with product bending test

Info

Publication number: CN220136831U
Application number: CN202320402069.1U
Authority: CN
Inventors: 官佳豪; 李页仔; 周亮
Original assignee: Zhuhai Bojay Electronics Co Ltd
Current assignee: Zhuhai Bojay Electronics Co Ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-12-05
Anticipated expiration: 2033-03-07

Abstract

The utility model aims to provide an automatic test fixture for bending test of a compatible product, which has high compatibility and good stability and overcomes rebound of the product. The utility model comprises a jig table, a needle die fixing seat and a product fixing seat, wherein the jig table is provided with a jig groove, a fixing plate is fixedly arranged in the jig groove, the product fixing seat is arranged on the fixing plate, and the fixture is characterized in that an adjusting plate can be arranged in the jig groove in a position adjusting manner, the needle die fixing seat is arranged on the adjusting plate, a pre-pressing block is rotatably arranged on the needle die fixing seat, the needle die fixing seat is provided with a plurality of set screws matched with the rotating end of the pre-pressing block, the needle die fixing seat is provided with a test groove matched with a test probe module, and the product fixing seat is provided with a product groove matched with an FPC product. The utility model relates to the technical field of FPC product clamping test in a bending state.

Description

Automatic test fixture capable of being compatible with product bending test

Technical Field

The utility model relates to the technical field of FPC product clamping test in a bending state, in particular to an automatic test fixture compatible with product bending test.

Background

The FPC products are also called as flexible circuit boards and flexible circuit boards, which are favored by the excellent characteristics of light weight, thin thickness, free bending and folding, etc., but the quality detection of the FPC products in industry mainly depends on manual visual inspection, and has high cost and low efficiency. Along with the rapid development of the electronic industry, the design of a circuit board tends to be high-precision and high-density, the traditional manual detection method cannot meet the production requirement, the automatic detection of FPC products becomes a necessary trend of industrial development, along with the development of FPC product testing jigs, the FPC products can be tested partially, however, the traditional design structure has weak compatibility, weak adaptation bending state and unstable testing clamping.

The traditional needle die set adopts a fixed structure, and can not be compatible with rebound deformation of a bent product, so that the problem to be solved by the utility model is how to improve the stability of clamping the FPC product when the needle implantation test is carried out on the FPC product, and the rebound of the FPC product in a bending state can be overcome, so that the FPC product can be stably and safely tested without damage to the FPC product during the test.

The utility model discloses a bending test fixture for a flexible display screen, as disclosed in a Chinese patent with publication number CN2017102529494, which comprises a bending mechanism and a hollow base, wherein the bending mechanism comprises two bending structures which are oppositely arranged at two sides of the middle part of the top end of the hollow base, and a supporting bending piece which is arranged between the two bending structures, and the display screen to be tested is attached to the supporting bending piece and is bent along with the bending of the supporting bending piece; the bending structure comprises: the rotating shaft penetrates through shaft holes formed in two side surfaces of the upper end of the hollow base, is detachably fixed with the hollow base, is driven by a driving motor and is used for driving the swinging frame to swing; the bending barrel is in a hollow cylinder shape, penetrates through the rotating shaft and is detachably fixed at a position of the hollow base corresponding to the rotating shaft, and is used for bending the supporting bending piece and the display screen to be tested; the two sides of one end of the swinging frame are matched with the rotating shaft and are detachably connected, and the swinging frame is used for bending the supporting bending piece and the display screen to be tested; the driving motor drives the rotating shaft to rotate, so that the swinging frame is driven to swing, and the display screen is further bent, the display screen is bent in a rotating and swinging mode, the generated torque is large, and the product is easy to damage, so that the display screen bending device is not suitable for the problem to be solved by the utility model.

According to the scheme, the flexible carrier is attached to the bearing unit, the product to be tested is fixed in a fixing area of the flexible carrier, at least one end of the flexible carrier is driven to linearly move, the flexible carrier is made to reciprocate on the bearing unit to achieve bending of the product, all parts of the product to be tested can be bent, accuracy of bending curvature and consistency of bending degree are guaranteed, the product to be tested is bent when moving to the bearing unit and the product to be tested is restored to be original state (namely, a flat state) when being far away from the bearing unit, so that the test is repeatedly performed, the product to be tested can be small flexible products such as a flexible chip and a flexible SIP product, although the scheme can solve the problem that the flexible chip rebounds, the structure is not convenient for a probe module to test, a test station matched with the probe module is not available, and accurate needle-down test is not easy to perform.

Disclosure of Invention

The utility model aims to solve the technical problems of overcoming the defects of the prior art, and providing an automatic test fixture for bending test of a compatible product, which has high compatibility and good stability and overcomes the rebound of the product, so as to solve the problems of poor compatibility, low stability, incapability of overcoming the rebound of the FPC product and the like in the test process of the conventional FPC product test device.

The technical scheme adopted by the utility model is as follows: the utility model comprises a jig table, a needle die fixing seat and a product fixing seat, wherein the jig table is provided with a jig groove, a fixing plate is fixedly arranged in the jig groove, the product fixing seat is arranged on the fixing plate, and the fixture is characterized in that an adjusting plate can be arranged in the jig groove in a position adjusting manner, the needle die fixing seat is arranged on the adjusting plate, a pre-pressing block is rotatably arranged on the needle die fixing seat, the needle die fixing seat is provided with a plurality of set screws matched with the rotating end of the pre-pressing block, the needle die fixing seat is provided with a test groove matched with a test probe module, and the product fixing seat is provided with a product groove matched with an FPC product.

The jig is characterized in that a plurality of first waist-shaped holes and fastening holes are formed in the jig groove, a plurality of positioning pins matched with the first waist-shaped holes are arranged on the adjusting plate, a plurality of second waist-shaped holes are formed in the adjusting plate, and fastening bolts matched with the fastening holes through the second waist-shaped holes are arranged on the adjusting plate.

The needle mould fixing seat is provided with a plurality of first magnet blocks, and the pre-pressing block is provided with a plurality of second magnet blocks which are matched with the first magnet blocks in a matching way.

The pre-compaction piece is provided with a pre-compaction protrusion matched with the test groove, and the limiting end part is in limiting fit with the needle mould fixing seat.

The fixture is characterized in that a plurality of limiting bushings matched with an external test machine tool are arranged on the fixture table.

The utility model has the beneficial effects that:

according to the utility model, mainly aiming at the problem of difficult clamping during testing of the FPC product in a bending state, the adjustable structure of the pin die fixing seat enables the product fixing seat to adapt to the improvement of the rebound ability of the bending FPC product, and meanwhile, the product is secondarily pressed by the pre-pressing cover structure, so that the clamping stability of the product is improved, and the testing stability of the FPC product is further improved; the pin die fixing seat can move towards the rebound direction of the bent product by using the mode of the adjustable pin die, so that the rebound deformation is compatible, meanwhile, the product is pressed by the pre-pressing cover, and the stability of clamping the product is further ensured; the problem of clamping difficulty under the FPC product bending condition is solved to adjustable structure, has promoted the stability of FPC product test, and the pre-compaction lid structure consolidates the product location, can the wide application in bending the planting needle test of FPC product.

Drawings

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

FIG. 2 is a schematic perspective view of the jig table;

FIG. 3 is a schematic perspective view of a portion of the functionality;

fig. 4 is a schematic perspective view of the needle mold fixing seat.

Detailed Description

For a clearer understanding of the features and advantages of the present utility model, the utility model is further illustrated by way of example in conjunction with figures 1 to 4. In this embodiment, the utility model includes a jig table 1, a needle mold fixing seat 2 and a product fixing seat 3, the jig table 1 is provided with a jig groove 11, a fixing plate 12 is fixedly arranged in the jig groove 11, the product fixing seat 3 is arranged on the fixing plate 12, and the utility model is characterized in that an adjusting plate 13 is arranged in the jig groove 11 in a position-adjustable manner, the needle mold fixing seat 2 is arranged on the adjusting plate 13, a pre-pressing block 21 is rotatably arranged on the needle mold fixing seat 2, the needle mold fixing seat 2 is provided with a plurality of set screws 22 matched with the rotating end of the pre-pressing block 21, the needle mold fixing seat 2 is provided with a test groove 23 matched with a test probe module, and the product fixing seat 3 is provided with a product groove 31 matched with an FPC product.

In this embodiment, a plurality of first waist-shaped holes 111 and fastening holes 112 are provided in the jig groove 11, a plurality of positioning pins 131 matched with the plurality of first waist-shaped holes 111 are provided on the adjusting plate 13, a plurality of second waist-shaped holes 132 are provided on the adjusting plate 13, and fastening bolts 133 matched with the fastening holes 112 through the second waist-shaped holes 132 are provided on the adjusting plate 13, so that the position of the adjusting plate 13 can be conveniently adjusted, products with different models and sizes can be better adapted, and compatibility of the utility model to products with different sizes can be improved.

In this embodiment, the pin die fixing seat 2 is provided with a plurality of first magnet blocks 24, and the pre-pressing block 21 is provided with a plurality of second magnet blocks 211 aligned and matched with the plurality of first magnet blocks 24, so that alignment and attraction are facilitated, and convenience in processing and accuracy in alignment are improved.

In this embodiment, the pre-pressing block 21 includes a pre-pressing end 212 located in the middle of the pre-pressing block 21 and limiting ends 213 located at two ends of the pre-pressing block, the pre-pressing end 212 is provided with a pre-pressing protrusion 214 matched with the test slot 23, and the limiting ends 213 are in limiting fit with the pin die fixing seat 2, so that not only the limiting effect during testing is improved, but also a more stable testing space is provided, and the pre-pressing protrusion 214 can better press the product in the test slot 23.

In the embodiment, the jig table 1 is provided with a plurality of limiting bushings 14 matched with an external test machine tool, so that the limiting bushings are convenient to be matched with the test machine tool, and the convenience of installation and test of the utility model is improved.

The working principle of the utility model is as follows:

according to the utility model, the FPC product is placed in the product groove 31 on the product fixing seat 3, the testing end of the FPC product is placed in the testing groove 23 of the needle mold fixing seat 2, the adjusting plate 13 is locked in the jig groove 11 by adjusting the position of the adjusting plate 13 and then matching the second waist-shaped hole 132 with the fastening hole 112 through the fastening bolt 133, the adjusting and aligning mode can not only adjust different positions according to the specification of the PFC product, but also play a buffering role on the bent PFC product in the position adjusting process, so that the PFC product is not damaged, then the pre-pressing block 21 is rotated, and the testing probe module placed in the testing groove 23 and the testing end of the FPC product are tightly pre-pressed together through the pre-pressing protrusion 214, so that the testing effect and accuracy are improved.

While the embodiments of this utility model have been described in terms of practical aspects, they are not to be construed as limiting the meaning of this utility model, and modifications to the embodiments and combinations with other aspects thereof will be apparent to those skilled in the art from this description.

Claims

1. The utility model provides an automatic test fixture of compatible product test of bending, it includes tool platform (1), needle mould fixing base (2) and product fixing base (3), tool platform (1) is provided with tool groove (11), tool groove (11) internal fixation is provided with fixed plate (12), product fixing base (3) set up on fixed plate (12), a serial communication port, but position adjustment is provided with regulating plate (13) in tool groove (11), needle mould fixing base (2) set up on regulating plate (13), the last rotation of needle mould fixing base (2) is provided with pre-compaction piece (21), needle mould fixing base (2) be provided with a plurality of holding screws (22) of the rotation end complex of pre-compaction piece (21), be provided with on needle mould fixing base (2) with test probe module complex test groove (23), be provided with on product fixing base (3) with product complex product groove (31).

2. The automatic test fixture for bending tests of compatible products according to claim 1, wherein a plurality of first waist-shaped holes (111) and fastening holes (112) are formed in the fixture groove (11), a plurality of positioning pins (131) matched with the plurality of first waist-shaped holes (111) are arranged on the adjusting plate (13), a plurality of second waist-shaped holes (132) are formed in the adjusting plate (13), and fastening bolts (133) matched with the fastening holes (112) through the second waist-shaped holes (132) are arranged on the adjusting plate (13).

3. The automatic test fixture for bending test of compatible products according to claim 1, wherein the pin die fixing seat (2) is provided with a plurality of first magnet blocks (24), and the pre-pressing block (21) is provided with a plurality of second magnet blocks (211) which are in alignment fit with the plurality of first magnet blocks (24).

4. An automatic test fixture compatible with bending tests of products according to claim 1, characterized in that the pre-pressing block (21) comprises a pre-pressing end part (212) positioned in the middle of the pre-pressing block and limiting end parts (213) positioned at two ends of the pre-pressing block, wherein the pre-pressing end part (212) is provided with pre-pressing protrusions (214) matched with the test groove (23), and the limiting end parts (213) are in limiting fit with the pin die fixing seat (2).

5. The automatic test fixture for bending test of compatible products according to claim 1, wherein a plurality of limiting bushings (14) matched with an external test machine tool are arranged on the fixture table (1).