FPC pneumatic fingerprint identification burning test fixture

Abstract

The utility model relates to the field of electronic product manufacturing, and discloses an FPC pneumatic fingerprint identification burning test fixture which comprises a supporting base, a mounting base is arranged at the top end of the supporting base, an air cylinder is fixedly connected to the front end of the upper side of the mounting base, and a supporting rod is fixedly connected to the top end of the mounting base. A mounting assembly is arranged on the inner wall of the top end of the mounting base and comprises a mounting plate, the outer wall of the mounting plate is slidably arranged on the inner wall of the top end of the mounting base, ejector pins are vertically arranged on the inner wall of the mounting plate, and four sets of limiting plates are slidably connected to the inner walls of the two sides of the mounting plate. According to the utility model, through the cooperative use of the mounting assembly and the dismounting assembly, when the die needs to be replaced, the upper die and the lower die can be rapidly dismounted through the mounting assembly and the dismounting assembly, so that the die replacement efficiency and the overall test efficiency are improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the field of electronic product manufacturing, in particular to an FPC pneumatic fingerprint recognition burning and testing fixture. Background Art

[0002] In the manufacturing process of electronic devices, flexible printed circuit boards (FPCs) are widely used in the manufacturing of fingerprint recognition modules due to their characteristics such as being thin, flexible, and highly reliable. An FPC can not only effectively connect the circuits between the fingerprint recognition sensor and the main board but also achieve complex circuit designs within a limited space, meeting the requirements of device miniaturization and lightweight.

[0003] An FPC pneumatic fingerprint recognition burning and testing fixture is a tooling device specifically used to test the performance of fingerprint recognition modules on FPCs. It utilizes the pneumatic principle to achieve rapid and precise positioning and fixation, and at the same time combines burning and testing technologies to comprehensively evaluate the functionality, stability, compatibility, etc. of the fingerprint recognition modules.

[0004] In the existing FPC pneumatic fingerprint recognition burning and testing fixture, when testing circuit boards of different specifications, the mold replacement process is cumbersome and time-consuming. Operators have to manually twist multiple sets of bolts to disassemble the existing mold, and then carefully turn another set of bolts to install the new mold, which increases the labor intensity of the staff and may also cause time delays during the replacement process, reducing the overall testing efficiency. Therefore, an FPC pneumatic fingerprint recognition burning and testing fixture is proposed to solve the above problems. Summary of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides an FPC pneumatic fingerprint recognition burning and testing fixture, aiming to improve the problem in the existing technology that "when replacing the existing mold, operators need to manually twist multiple sets of bolts to disassemble the old mold and install the new mold, which increases the labor intensity, may cause time delays, and reduces the testing efficiency".

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: An FPC pneumatic fingerprint recognition burning and testing fixture includes a support base. An installation base is arranged at the top end of the support base. A cylinder is fixedly connected to the front end of the upper side of the installation base. A support rod is fixedly connected to the top end of the installation base. An installation component is arranged on the inner wall of the top end of the installation base. The installation component includes an installation plate. The outer wall of the installation plate slides on the inner wall of the top end of the installation base. A thimble is vertically arranged on the inner wall of the installation plate. Limiting plates are slidably connected to the inner walls on both sides of the installation plate. There are four groups of limiting plates, and two groups of the limiting plates are elastically connected by a return spring.

[0007] As a further description of the above technical solution:

[0008] A limiting strip is fixedly connected to the top end of the limiting plate. A pushing block is slidably connected to the outer wall of the limiting strip and the top end of the limiting plate. A convex block is fixedly connected to the bottom end of the pushing block. A chute is provided on the top end of the limiting plate near the outside of the limiting strip. The outer wall of the bottom end of the convex block slides on the inner wall of the chute. A clamping groove is provided on the outer side of the pushing block close to the mounting plate.

[0009] As a further description of the above technical solution:

[0010] A limiting post is fixedly connected to the top end of the mounting plate near the left side of the limiting plate. A positioning post one is fixedly connected to the bottom end of the mounting plate. The outer wall of the bottom end of the positioning post one slides on the inner wall of the mounting base.

[0011] As a further description of the above technical solution:

[0012] An upper die is slidably connected to the outer wall of the support rod. A disassembly component is provided at the bottom end of the air cylinder. The disassembly component includes a chuck. The inner wall of the chuck is fixedly connected to the outer wall of the bottom end of the output shaft of the air cylinder. A limiting block one is slidably connected to the top end of the upper die.

[0013] As a further description of the above technical solution:

[0014] A limiting block two is slidably connected to the rear side of the upper die near the limiting block one. A positioning pin is fixedly connected to the rear side of the limiting block one. The outer wall of the rear side of the positioning pin slides on the inner wall of the front end of the limiting block two.

[0015] As a further description of the above technical solution:

[0016] A hinge rod is rotatably connected to the inner wall of the right side of the limiting block two. A pull rod is slidably connected to the inner wall of the front end of the hinge rod. The hinge rod and the pull rod are elastically connected by a compression spring two. A clamping block is fixedly connected to the outer wall of the front end of the limiting block one.

[0017] As a further description of the above technical solution:

[0018] The pull rod is set in a T shape. The rear side of the T-shaped cross bar of the pull rod slides inside the front end of the clamping block.

[0019] As a further description of the above technical solution:

[0020] A reset component is provided at the top end of the mounting plate. The reset component includes a positioning post two. The outer wall of the positioning post two slides on the inner wall of the mounting plate. The top end of the positioning post two is fixedly connected to a lower die.

[0021] As a further description of the above technical solution:

[0022] A slide cylinder is fixedly connected to the outer side of the lower mold, and a slide rod is slidably connected to the inner wall of the slide cylinder. The slide cylinder and the slide rod are elastically connected by a compression spring. The bottom end of the compression spring is attached to the top of the mounting plate. There are multiple groups of slide cylinders, slide rods and compression springs.

[0023] As a further description of the above technical solution:

[0024] The top end of the slide cylinder is configured to be conical.

[0025] The utility model has the following beneficial effects:

[0026] 1. In the utility model, by using the installation component and the disassembly component in coordination, when the mold needs to be replaced, the upper mold and the lower mold can be quickly disassembled through the installation component and the disassembly component, thereby improving the efficiency of mold replacement and the overall testing efficiency and reducing the labor intensity of the staff.

[0027] 2. In the utility model, through the coordinated use of the reset component and the mounting plate, when the circuit board is subjected to the fingerprint recognition burning test, the conical setting at the top of the slide cylinder can enable the upper mold to be quickly positioned, thereby ensuring the accuracy of the test. At the same time, the reset component can enable the circuit board to quickly exit the test state, thereby improving the test efficiency and the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structural schematic diagram of the overall device in the utility model;

[0029] Figure 2 It is a right-side view of the three-dimensional structure section of the lower mold of the utility model;

[0030] Figure 3 It is a schematic diagram of the split three-dimensional structure of the mounting plate and the lower mold in the utility model;

[0031] Figure 4 It is a right-side perspective structural cross-sectional diagram of the mounting plate in the utility model;

[0032] Figure 5 It is a schematic diagram of the split three-dimensional structure of the limit plate and the push block in the utility model;

[0033] Figure 6 It is a schematic diagram of the split three-dimensional structure of the chuck and the limiting block 1 in the utility model;

[0034] Figure 7 It is a schematic diagram of the disassembled three-dimensional structure of the disassembled components in the utility model.

[0035] Legend:

[0036] 1. Support base; 2. Mounting base; 3. Cylinder; 4. Support rod; 51. Mounting plate; 52. Limiting plate; 53. Return spring; 54. Limiting strip; 55. Pusher block; 56. Limiting column; 57. Positioning column 1; 61. Positioning column 2; 62. Lower die; 63. Slide cylinder; 64. Slide rod; 65. Compression spring 1; 7. Upper die; 71. Chuck; 72. Limiting block 1; 73. Limiting block 2; 74. Compression spring 2; 75. Hinge rod; 76. Pull rod; 77. Locking block. Detailed implementation manner

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0038] Refer to Figure 1 、 Figure 3 and Figure 4 As shown in the figure, an embodiment provided by the present invention: An FPC pneumatic fingerprint recognition burning and testing fixture includes a support base 1 that provides a stable support foundation for the entire fixture. At the top of the support base 1, there is a mounting base 2 for installing and fixing other components, providing a mounting position and support for the mounting components, etc. The mounting base 2 is fixed by a buckle. At the front end of the upper side of the mounting base 2, a cylinder 3 is fixedly connected as a power source, and the movement of the upper die 7 is driven by the telescopic movement of its output shaft. At the top of the mounting base 2, a support rod 4 is fixedly connected, which plays a guiding and supporting role in the movement of the upper die 7, ensuring that the upper die 7 can slide smoothly along a predetermined path. On the inner wall of the top of the mounting base 2, there is a mounting component. The mounting component includes a mounting plate 51, which is the main structure of the mounting component. The outer wall of the mounting plate 51 slides on the inner wall of the top of the mounting base 2. Inside the mounting plate 51, a thimble is vertically arranged. The thimble is used for electrical connection with the FPC module on the lower die 62 to be tested for testing. On both inner walls of the mounting plate 51, limiting plates 52 for fixedly installing the mounting plate 51 are slidably connected. The outer sides of the limiting plates 52 slide inside the mounting plate 51, and the upper and lower ends of the outer sides of the limiting plates 52 are set as inclined surfaces, which can make the limiting plates 52 quickly inserted into the inner wall of the mounting plate 51, thereby improving the installation efficiency. There are four groups of limiting plates 52, and two groups of limiting plates 52 are elastically connected by a return spring 53. The two groups of limiting plates 52 are squeezed against the inner wall of the mounting base 2 by the elastic force of the return spring 53, thereby quickly fixing the mounting plate 51 and ensuring the stable position of the mounting plate 51.

[0039] Refer to Figure 4 and Figure 5, a limiting strip 54 for guiding and limiting the pushing block 55 is fixedly connected to the top end of the limiting plate 52. The outer wall of the limiting strip 54 is slidably connected with the pushing block 55 at the top end of the limiting plate 52. When used in cooperation with the limiting column 56, it can limit the limiting plate 52, thus facilitating the operator to install the mounting plate 51. A convex block is fixedly connected to the bottom end of the pushing block 55. A chute is provided on the top end of the limiting plate 52 near the outside of the limiting strip 54. The outer wall of the bottom end of the convex block slides on the inner wall of the chute, which can limit the pushing block 55 and prevent the pushing block 55 from detaching from the limiting strip 54. A clamping groove is provided on the outer side of the pushing block 55 close to the mounting plate 51 for contacting with the limiting column 56, thereby limiting the limiting plate 52, enabling the lower die 62 to be quickly disassembled, thus improving the efficiency of die replacement and the overall testing efficiency, reducing the labor intensity of the staff. A limiting column 56 is fixedly connected to the top end of the mounting plate 51 near the left side of the limiting plate 52. A positioning column one 57 is fixedly connected to the bottom end of the mounting plate 51. The outer wall of the bottom end of the positioning column one 57 slides in the inner wall of the mounting base 2, ensuring the accurate position of the mounting plate 51 in the mounting base 2 and preventing it from shifting.

[0040] Refer to Figure 1 , Figure 6 and Figure 7 , a top die 7 is slidably connected to the outer wall of the support rod 4. A disassembly component is provided at the bottom end of the air cylinder 3. The disassembly component includes a chuck 71. The inner wall of the chuck 71 is fixedly connected to the outer wall of the output shaft of the air cylinder 3 at the bottom end, playing a role in connecting the output shaft of the air cylinder 3 and the top die 7, ensuring that the power of the air cylinder 3 can be stably transmitted to the top die 7. A limiting block one 72 is slidably connected to the top end of the top die 7. A limiting block two 73 is slidably connected to the rear side of the top die 7 near the limiting block one 72. The limiting block one 72 and the limiting block two 73 cooperate with the positioning pin to limit the chuck 71, thereby driving the top die 7 to move. A positioning pin is fixedly connected to the rear side of the limiting block one 72. The outer wall of the rear side of the positioning pin slides in the front inner wall of the limiting block two 73. The stability of the connection between the limiting block one 72 and the limiting block two 73 is improved through the positioning pin. A hinge rod 75 that can rotate in the inner wall of the limiting block two 73 is rotatably connected to the right inner wall of the limiting block two 73. A pull rod 76 for fixing the limiting block one 72 and the limiting block two 73 together is slidably connected to the front inner wall of the hinge rod 75. The hinge rod 75 and the pull rod 76 are elastically connected by a compression spring two 74. Through the elastic force of the compression spring two 74, the pull rod 76 is tightly attached to the inner wall of the clamping block 77, thereby fixing the limiting block one 72 and the limiting block two 73. A clamping block 77 for limiting the pull rod 76 is fixedly connected to the front outer wall of the limiting block one 72. The pull rod 76 is set in a T shape, which is convenient for the operator to pull, so that the limiting block one 72 and the limiting block two 73 can be quickly released and the top die 7 can be disassembled for maintenance. The rear side of the T-shaped cross bar of the pull rod 76 slides inside the front end of the clamping block 77.

[0041] Refer to Figure 1 - Figure 3, a reset component is provided at the top of the mounting plate 51. The reset component includes a positioning post two 61 for limiting the lower die 62. The outer wall of the positioning post two 61 slides on the inner wall of the mounting plate 51. The top of the positioning post two 61 is fixedly connected to the lower die 62 for placing the circuit board for fingerprint recognition and programming test. The outside of the lower die 62 is fixedly connected through to provide a moving space for the slide bar 64 with a slide cylinder 63. The inner wall of the slide cylinder 63 is slidably connected to a slide bar 64. The slide cylinder 63 and the slide bar 64 are elastically connected by a first compression spring 65. The bottom end of the first compression spring 65 abuts against the top of the mounting plate 51. During the working process, when the upper die 7 and the lower die 62 are closed, the lower die 62 moves downward under pressure, driving the slide cylinder 63 to slide downward along the slide bar 64. At the same time, the first compression spring 65 is compressed, storing elastic potential energy. When the pressure applied to the lower die 62 disappears, the first compression spring 65 releases the elastic potential energy, pushing the slide cylinder 63 to slide upward along the slide bar 64, thereby driving the lower die 62 to reset and preparing for the next test. Multiple groups of the slide cylinder 63, the slide bar 64 and the first compression spring 65 are provided, which can distribute the reset force more evenly, making the lower die 62 more stable during the reset process and avoiding tilting or jamming. The top of the slide cylinder 63 is set to be conical, which can play a certain guiding role to ensure the accurate position of the lower die 62 and improve the accuracy and consistency of the test.

[0042] Working principle: When in use, when testing, first place the circuit board for fingerprint recognition and programming test to be tested on the lower die 62. The upper die 7 moves downward under the action of the cylinder 3 and contacts the slide cylinder 63 on the lower die 62. Through the conical design at the top of the slide cylinder 63, it plays a guiding role to ensure the accurate position of the lower die 62 and improve the test accuracy and consistency. At this time, the lower die 62 is under pressure, driving the slide cylinder 63 to slide downward along the slide bar 64. The first compression spring 65 is compressed to store elastic potential energy, so that the ejector pin passes through the lower die 62 and is connected to the circuit board for testing. After the test is completed, the cylinder 3 drives the upper die 7 to rise. The pressure on the lower die 62 disappears. The first compression spring 65 releases the elastic potential energy, pushing the slide cylinder 63 to slide upward along the slide bar 64, driving the lower die 62 to reset, and separating the ejector pin from the circuit board, improving the test efficiency and operation convenience.

[0043] When the mold needs to be replaced, by pulling the two limit plates 52, the two limit plates 52 squeeze the reset spring 53. When the two limit plates 52 contact the mounting plate 51, the push block 55 is pushed, so that the push block 55 slides on the outer wall of the limit strip 54, making the card slot contact the limit post 56, thereby limiting the limit plate 52. At this time, the mounting plate 51 can be quickly removed, and thus the lower die 62 can be replaced. Similarly, by pulling the pull rod 76, the pull rod 76 squeezes the second compression spring 74, so that the pull rod 76 slides out of the inner wall of the clamping block 77, releasing the limit on the first limit block 72 and the second limit block 73, and thus releasing the limit on the chuck 71, and the upper die 7 can be disassembled for maintenance.

[0044] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An FPC pneumatic fingerprint recognition burning test fixture, comprising a support base (1), characterized in that: The top of the support base (1) is provided with a mounting base (2), the front end of the upper side of the mounting base (2) is fixedly connected to a cylinder (3), the top of the mounting base (2) is fixedly connected to a support rod (4), the inner wall of the top of the mounting base (2) is provided with a mounting assembly, the mounting assembly comprises a mounting plate (51), the outer wall of the mounting plate (51) slides on the inner wall of the top of the mounting base (2), the inner wall of the mounting plate (51) is vertically provided with a thimble, the inner walls on both sides of the mounting plate (51) are slidably connected to limit plates (52), four groups of the limit plates (52) are provided, and two groups of the limit plates (52) are elastically connected by a return spring (53).

2. The FPC pneumatic fingerprint recognition burning test fixture according to claim 1, characterized in that: The top of the limiting plate (52) is fixedly connected to the limiting strip (54), the outer wall of the limiting strip (54) and the top of the limiting plate (52) are slidably connected to a push block (55), the bottom end of the push block (55) is fixedly connected to a protrusion, the top of the limiting plate (52) is provided with a sliding groove near the outside of the limiting strip (54), the outer wall of the bottom end of the protrusion slides on the inner wall of the sliding groove, and the push block (55) is provided with a clamping groove near the outside of the mounting plate (51).

3. The FPC pneumatic fingerprint recognition burning test fixture according to claim 1, characterized in that: The top end of the mounting plate (51) is fixedly connected to a limiting column (56) near the left side of the limiting plate (52), and the bottom end of the mounting plate (51) is fixedly connected to a positioning column 1 (57), and the outer wall of the bottom end of the positioning column 1 (57) slides on the inner wall of the mounting base (2).

4. The FPC pneumatic fingerprint recognition burning test fixture according to claim 1, characterized in that: The outer wall of the support rod (4) is slidably connected to an upper mold (7), and a disassembly assembly is provided at the bottom end of the cylinder (3). The disassembly assembly includes a chuck (71), the inner wall of the chuck (71) is fixedly connected to the outer wall of the bottom end of the output shaft of the cylinder (3), and the top end of the upper mold (7) is slidably connected to a limiting block (72).

5. The FPC pneumatic fingerprint recognition burning test fixture according to claim 4, characterized in that: The upper mold (7) is slidably connected to the limit block 2 (73) near the rear side of the limit block 1 (72); a positioning pin is fixedly connected to the rear side of the limit block 1 (72); and the rear outer wall of the positioning pin slides on the front inner wall of the limit block 2 (73).

6. The FPC pneumatic fingerprint recognition burning test fixture according to claim 5, characterized in that: The right inner wall of the second limit block (73) is rotatably connected to a hinge rod (75), the inner wall at the front end of the hinge rod (75) is slidably connected to a pull rod (76), the hinge rod (75) and the pull rod (76) are elastically connected via a second compression spring (74), and the outer wall at the front end of the first limit block (72) is fixedly connected to a clamping block (77).

7. The FPC pneumatic fingerprint recognition burning test fixture according to claim 6, characterized in that: The pull rod (76) is configured to be T-shaped, and the rear side of the T-shaped cross bar of the pull rod (76) slides inside the front end of the clamping block (77).

8. The FPC pneumatic fingerprint recognition burning test fixture according to claim 1, characterized in that: A reset assembly is arranged at the top of the mounting plate (51), and the reset assembly comprises a second positioning column (61). The outer wall of the second positioning column (61) slides on the inner wall of the mounting plate (51), and the top of the second positioning column (61) is fixedly connected to a lower mold (62).

9. The FPC pneumatic fingerprint recognition burning test fixture according to claim 8, characterized in that: A slide cylinder (63) is fixedly connected to the outer side of the lower mold (62), and a slide rod (64) is slidably connected to the inner wall of the slide cylinder (63). The slide cylinder (63) and the slide rod (64) are elastically connected via a compression spring (65). The bottom end of the compression spring (65) is attached to the top of the mounting plate (51). The slide cylinder (63), the slide rod (64) and the compression spring (65) are provided in multiple groups.

10. The FPC pneumatic fingerprint recognition burning test fixture according to claim 9, characterized in that: The top end of the slide cylinder (63) is configured to be conical.

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