FPC burning test fixture

Abstract

The utility model relates to the technical field of FPC (Flexible Printed Circuit) burning test, in particular to an FPC burning test fixture, which is characterized in that an upper die comprises a mounting plate which is divided into a first mounting plate and a second mounting plate; a supporting cross beam is arranged in the longitudinal direction of the mounting plate, a groove hole is formed in the supporting cross beam in the longitudinal direction, and the first mounting plate is movably connected with the supporting cross beam through the groove hole; a test needle mold lifting mechanism is arranged on the first mounting plate, a support is arranged on one side of the test needle mold lifting mechanism, and a burning box is arranged on the support; the test needle mold lifting mechanism comprises a test needle mold and a lifting mechanism, the burning box is connected with the test needle mold through a connecting line, a plurality of test needles are arranged on the test needle mold, and the test needles are perpendicular to the FPC placement plane at the top of the lower mold and penetrate through the first mounting plate. According to the jig provided by the utility model, the alignment of the jig can be adjusted according to the actual condition of a product, so that the product is prevented from being crushed, the jig does not need to be replaced, and the burning test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of FPC burning test, in particular to an FPC burning test fixture. Background Art

[0002] As mobile phones, tablets and other electronic products gradually develop in the direction of thinness, the demand for FPC also grows. FPC is mainly used for line connection in electronic products due to its ultra-thinness, high density, high reliability, and bending resistance. It is one of the important materials for the thin design of electronic products. FPC can save unnecessary wiring, reduce the volume and weight of the product, has high flexibility and can be assembled in a limited space. In the process of FPC manufacturing, many FPC factories must test FPC. In order to improve the yield of FPC products and prevent defective products from entering the market, FPC can be tested from three aspects: appearance, process, and performance. This helps to timely discover defects in FPC and make improvements based on the defects, thereby improving the yield of FPC products and reducing costs.

[0003] At present, the FPC burning test fixture is fixed during use. However, after the FPC passes the SMT, there will be a certain tolerance and the fixture processing tolerance superimposed, so it cannot be aligned in one time, which can easily cause product damage. Utility Model Content

[0004] The utility model aims to solve the problem that after the existing FPC passes through SMT, there will be a certain tolerance and the jig processing tolerance superimposed, which makes it impossible to align at one time and easily causes product damage, and to provide an FPC burning test jig.

[0005] The embodiment of the utility model is realized by the following technical scheme: an FPC burning test fixture, which is divided into an upper mold and a lower mold, the upper mold includes a mounting plate, and the mounting plate is divided into a first mounting plate and a second mounting plate;

[0006] A supporting crossbeam is provided in the longitudinal direction of the mounting plate, and a slot is provided in the supporting crossbeam along the longitudinal direction, and the first mounting plate is movably connected to the supporting crossbeam through the slot;

[0007] The first mounting plate is provided with a test needle mold lifting mechanism, one side of the test needle mold lifting mechanism is provided with a bracket, and the bracket is provided with a burning box;

[0008] The test pin mold lifting mechanism is composed of a test pin mold and a lifting mechanism that pushes the test pin mold to contact the FPC gold finger. The burning box is connected to the test pin mold through a connecting line. A plurality of test pins are arranged on the test pin mold. The test pins are perpendicular to the FPC placement plane at the top of the lower mold and pass through the first mounting plate.

[0009] According to a preferred embodiment, the test needle module is composed of a wiring module, a needle tail plate and an adjustment plate, wherein the wiring module is arranged on the upper surface of the needle tail plate, the test needle is arranged on the needle tail plate, the wiring module is connected to the burning box through a connecting wire, and the needle tail plate and the adjustment plate are connected by screws and equal height sleeves.

[0010] According to a preferred embodiment, a first through hole is opened in the middle of the adjustment plate.

[0011] According to a preferred embodiment, the lifting mechanism adopts a cylinder or an elastic mechanism.

[0012] According to a preferred embodiment, the elastic mechanism is composed of a support column, a first movable plate, a spring pressure block, a guide pin and a spring, wherein the two spring pressure blocks are symmetrically arranged on the upper surface of the first mounting plate along the transverse direction, and the spring pressure blocks are provided with slots along the transverse direction, the first movable plate is arranged between the two spring pressure blocks, and both ends thereof are located in the slots, the guide pin penetrates the spring pressure block in the vertical direction and is connected to the first movable plate, and the spring is sleeved on the guide pin located in the slot.

[0013] According to a preferred embodiment, a plurality of first test pin through holes corresponding to the test pins are provided in the middle of the first movable plate.

[0014] According to a preferred embodiment, a second through hole is opened in the middle of the first mounting plate, a second movable plate is arranged in the second through hole, the second movable plate is fixedly connected to the first movable plate, and a plurality of second test pin through holes corresponding to the test pins are opened in the middle of the second movable plate.

[0015] According to a preferred embodiment, a mounting bracket is provided on one side of the first mounting plate, and a bull horn seat is provided on the mounting bracket.

[0016] According to a preferred embodiment, two 64-pin bull horn seats are provided on the mounting bracket.

[0017] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects: compared with the prior art, the FPC burning test fixture provided by the utility model adopts a separate design for the mounting plate of the upper mold, and adopts a supporting beam arranged in the transverse direction to realize the movable connection between the case test needle mold lifting mechanism and the first mounting plate of the burning box, so that the positioning of the fixture can be adjusted according to the actual situation of the product to avoid product crushing, without the need to replace the fixture, thereby improving the burning test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structural diagram of the FPC burning test fixture provided in Example 1 of the utility model;

[0019] Icons: 1-upper mold, 2-lower mold, 3-first mounting plate, 4-support beam, 5-slot, 6-bracket, 7-burning box, 8-test needle, 9-wiring module, 10-needle tail plate, 11-adjustment plate, 12-screw, 13-first through hole, 14-support column, 15-first movable plate, 16-spring pressure block, 17-guide pin, 18-mounting bracket, 19-horn seat. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Example 1

[0022] Figure 1 This is a schematic diagram of the overall structure of the FPC burning test fixture provided by the embodiment of the utility model. Figure 1 As shown, this embodiment provides an FPC burning test fixture, which is divided into an upper mold 1 and a lower mold 2. The upper mold 1 includes a mounting plate, and the mounting plate is divided into a first mounting plate 3 and a second mounting plate.

[0023] In this embodiment, the mounting plate adopts a separate design, and a supporting beam 4 is provided in the longitudinal direction of the mounting plate. The supporting beam 4 is provided with a slot 5 along the longitudinal direction. The first mounting plate 3 is movably connected to the supporting beam 4 through the slot 5, so that the first mounting plate 3 can move along the longitudinal direction.

[0024] Furthermore, a test needle mold lifting mechanism is provided on the first mounting plate 3, a bracket 6 is provided on one side of the test needle mold lifting mechanism, and a burning box 7 is provided on the bracket 6. The test needle mold lifting mechanism is composed of a test needle mold and a lifting mechanism that pushes the test needle mold to contact the FPC gold finger, the burning box 7 is connected to the test needle mold through a connecting line, and a plurality of test needles 8 are provided on the test needle mold, and the test needles 8 are perpendicular to the FPC placement plane at the top of the lower mold 2 and penetrate the first mounting plate 3.

[0025] When the upper mold 1 and the lower mold 2 are in contact and closed, the lifting mechanism drives the test pin mold to move up and down, and the test pins 8 in the test pin mold are aligned and contact the FPC gold fingers of the lower mold 2, and then the burning box 7 performs a burning test on each FPC.

[0026] In summary, the improvement of the above structure can adjust the position of the fixture according to the actual situation of the product to avoid product crushing without replacing the fixture, thereby improving the efficiency of the burning test.

[0027] Example 2

[0028] On the basis of Example 1, this example improves the test needle mold lifting mechanism. Specifically, in one implementation of this example, the test needle mold is composed of a wiring module 9, a needle tail plate 10 and an adjustment plate 11, wherein the wiring module 9 is arranged on the upper surface of the needle tail plate 10, and the test needle 8 is arranged on the needle tail plate 10. The wiring module 9 is connected to the burning box 7 through a connecting line, and the needle tail plate 10 and the adjustment plate 11 are connected by screws 12 and equal-height sleeves, so that the distance between the needle tail plate 10 and the adjustment plate 11 can be adjusted.

[0029] For the lifting mechanism, a cylinder or an elastic mechanism can be selected. Specifically, in one implementation of this embodiment, an elastic mechanism is used; specifically, the elastic mechanism is composed of a support column 14, a first movable plate 15, a spring pressure block 16, a guide pin 17 and a spring, wherein the two spring pressure blocks 16 are symmetrically arranged on the upper surface of the first mounting plate 3 in the transverse direction, and the spring pressure blocks 16 are provided with slots 5 in the transverse direction, the first movable plate 15 is arranged between the two spring pressure blocks 16, and both ends thereof are located in the slots 5, the guide pin 17 passes through the spring pressure block 16 in the vertical direction and is connected to the first movable plate 15, and the spring is sleeved on the guide pin 17 located in the slots 5. Compared with a cylinder, the use of an elastic mechanism eliminates the need to wait for the cylinder to reset during the test, thereby improving production test efficiency and reducing costs.

[0030] Furthermore, corresponding to the setting of the test pin 8, a first through hole 13 is opened in the middle of the adjustment plate 11 for the test pin 8 to pass through, and a plurality of first test pin through holes corresponding to the test pin 8 are opened in the middle of the first movable plate 15; a second through hole is opened in the middle of the first mounting plate 3, and a second movable plate is arranged in the second through hole, and the second movable plate is fixedly connected to the first movable plate 15, and a plurality of second test pin through holes corresponding to the test pin 8 are opened in the middle of the second movable plate.

[0031] In addition, regarding the burning box 7, a mounting bracket 18 is provided on one side of the first mounting plate 3, and two 64-pin horn seats 19 are provided on the mounting bracket 18. The burning box 7 can provide 8 parallel burning channels to the outside through the two 64-pin horn seats 19.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An FPC burning test fixture, comprising an upper die (1) and a lower die (2), characterized in that: The upper mold (1) comprises a mounting plate, and the mounting plate is divided into a first mounting plate (3) and a second mounting plate; A supporting crossbeam (4) is provided in the longitudinal direction of the mounting plate, a slot hole (5) is provided in the supporting crossbeam (4) along the longitudinal direction, and the first mounting plate (3) is movably connected to the supporting crossbeam (4) via the slot hole (5); A test needle mold lifting mechanism is provided on the first mounting plate (3), a bracket (6) is provided on one side of the test needle mold lifting mechanism, and a burning box (7) is provided on the bracket (6); The test pin mold lifting mechanism is composed of a test pin mold and a lifting mechanism that pushes the test pin mold to contact the FPC gold finger. The burning box (7) is connected to the test pin mold through a connecting line. A plurality of test pins (8) are arranged on the test pin mold. The test pins (8) are perpendicular to the FPC placement plane at the top of the lower mold (2) and penetrate the first mounting plate (3).

2. The FPC burning test fixture as claimed in claim 1, characterized in that: The test needle module is composed of a wiring module (9), a needle tail plate (10) and an adjustment plate (11), wherein the wiring module (9) is arranged on the upper surface of the needle tail plate (10), the test needle (8) is arranged on the needle tail plate (10), the wiring module (9) is connected to the burning box (7) through a connecting line, and the needle tail plate (10) and the adjustment plate (11) are connected through screws (12) and equal height sleeves.

3. The FPC burning test fixture as claimed in claim 2, characterized in that: A first through hole (13) is provided in the middle of the adjustment plate (11).

4. The FPC burning test fixture as claimed in claim 1, characterized in that: The lifting mechanism adopts a cylinder or an elastic mechanism.

5. The FPC burning test fixture as claimed in claim 4, characterized in that: The elastic mechanism is composed of a support column (14), a first movable plate (15), a spring pressure block (16), a guide pin (17) and a spring, wherein the two spring pressure blocks (16) are symmetrically arranged on the upper surface of the first mounting plate (3) in the transverse direction, and the spring pressure blocks (16) are provided with slots (5) in the transverse direction, the first movable plate (15) is arranged between the two spring pressure blocks (16), and both ends thereof are located in the slots (5), the guide pin (17) passes through the spring pressure blocks (16) in the vertical direction and is connected to the first movable plate (15), and the spring is sleeved on the guide pin (17) located in the slots (5).

6. The FPC burning test fixture as claimed in claim 5, characterized in that: A plurality of first test pin through holes corresponding to the test pins (8) are provided in the middle of the first movable plate (15).

7. The FPC burning test fixture as claimed in claim 5, characterized in that: A second through hole is provided in the middle of the first mounting plate (3), a second movable plate is provided in the second through hole, the second movable plate is fixedly connected to the first movable plate (15), and a plurality of second test pin through holes corresponding to the test pins (8) are provided in the middle of the second movable plate.

8. The FPC burning test fixture according to any one of claims 1 to 7, characterized in that: A mounting bracket (18) is provided on one side of the first mounting plate (3), and a horn seat (19) is provided on the mounting bracket (18).

9. The FPC burning test fixture as claimed in claim 8, characterized in that: The mounting bracket (18) is provided with two 64-pin horn seats (19).

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