CN221148729U - Multi-channel pin test fixture - Google Patents

Abstract

The utility model relates to the technical field of driving power supply testing tools, in particular to a multichannel pin type testing tool, which is characterized in that a first pin group and a second pin group are respectively connected with two ends of an LED driving power supply, so that the power supply, the LED driving power supply and an LED load are connected, a plurality of LED driving power supplies can be tested simultaneously, the testing efficiency is improved, the clamping of the LED driving power supplies is conveniently positioned through a fixed limiting block, the horizontal displacement and the vertical transfer of the LED driving power supplies are respectively limited through a movable clamping block and a lifting pressing block, the clamping precision is further improved, and the testing reliability is further improved.

Description

Multi-channel pin test fixture

Technical Field

The utility model relates to the technical field of drive power supply test fixtures, in particular to a multi-channel pin-type test fixture.

Background technique

Before the LED driver power supply is officially produced, it is necessary to perform various tests on the LED driver power supply to ensure that the LED driver power supply meets the production standards. However, there are still some defects in the existing LED driver power supply testing work. First, during the test process, the LED driver power supply is not positioned, resulting in the contact head on the LED driver power supply not being in good contact with the detection head, that is, the contact head on the LED power supply driver board cannot be accurately aligned with the detection head, which is prone to poor contact, resulting in the inability to test the LED power supply driver board well, which will reduce the test efficiency of the LED power supply driver board to a certain extent; second, when testing the driver power supply, a single-channel test method (one test each time) is often used, with two input lines and two output lines to perform functional testing on an LED driver power supply. This method has low test efficiency and cannot be used for mass production.

Utility Model Content

In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a multi-channel pin-type test fixture that can test multiple LED drive power supplies simultaneously, improve test efficiency, locate the LED drive power supplies, and improve test reliability.

The technical solution adopted by the utility model is:

A multi-channel pin-type test fixture comprises a test bench, wherein a test position is arranged on the upper side of the test bench, fixed limit blocks are arranged on the front and rear sides of the test position, movable clamping blocks are arranged on the left and right sides, and a lifting and lowering pressure block is arranged above the test position, a plug-in rack is arranged above each movable clamping block, a telescopic member for driving the plug-in rack to tilt and move is connected to a side of the plug-in rack away from the test position, and a horizontal strip groove is arranged on the plug-in rack, wherein a plurality of first pin groups are slidably connected to one of the horizontal strip grooves, and a plurality of second pin groups are slidably connected to the other horizontal strip groove.

Preferably, a longitudinal strip groove is provided on the test bench, a screw is connected to the bottom of the fixed limit block, the screw slides through the longitudinal strip groove, and is threadedly connected to a nut, which abuts against the bottom surface of the test bench.

Preferably, a transverse strip groove is provided on the test bench, and the bottom of the movable clamping block is connected to a first slider, the first slider slides through the transverse strip groove, and the bottom is connected to a push-pull block, the push-pull block is connected to a first cylinder, and the first cylinder is fixed to the bottom of the test bench.

Preferably, a gantry is connected to the top of the test bench, a second cylinder is mounted on the gantry, and a bottom output end of the second cylinder is fixedly connected to the top of the lifting and lowering block.

Preferably, guide rods are provided on both the front and rear sides of the second cylinder, the guide rods are slidably connected to the gantry, and the bottoms of the guide rods are fixedly connected to the tops of the lifting and lowering pressure blocks.

Preferably, the plug-in rack is connected to a second slider, an inclined guide rail is installed on the test bench, and the second slider is slidably connected to the inclined guide rail.

Preferably, a heightening block is provided on the test bench, the top surface of the heightening block is inclined, and the telescopic member is a double-rod cylinder fixed to the top surface of the heightening block.

Preferably, the bottom of the test bench is connected with supporting feet.

The beneficial effects of the utility model are:

The multi-channel pin-type test fixture is connected to the two ends of the LED driver power supply through the first pin group and the second pin group respectively, thereby forming a connection between the power supply, the LED driver power supply and the LED load. It can test multiple LED driver power supplies at the same time, thereby improving the test efficiency. The clamping of the LED driver power supply can be conveniently positioned by fixing the limit block, and the horizontal displacement and vertical transfer of the LED driver power supply can be limited by moving the clamping block and the lifting and lowering pressure block respectively, thereby further improving the clamping accuracy and thus improving the reliability of the test.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a first perspective schematic diagram of the utility model.

FIG. 2 is a second perspective schematic diagram of the present invention.

FIG. 3 is a partial structural schematic diagram of the utility model.

FIG. 4 is a schematic diagram of the clamping of the LED driving power supply.

In the figure: 1. Test bench; 2. Fixed limit block; 3. Mobile clamping block; 4. Lifting and lowering block; 5. Plug-in rack; 6. Telescopic member; 7. Horizontal strip groove; 8. First pin group; 9. Second pin group; 10. Longitudinal strip groove; 11. Screw rod; 12. Nut; 13. Horizontal strip groove; 14. First slider; 15. Push-pull block; 16. First cylinder; 17. Gantry; 18. Second cylinder; 19. Guide rod; 20. Second slider; 21. Inclined guide rail; 22. Heightening block; 23. Support foot; 24. LED drive power supply.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1 to 4. The utility model provides a technical solution: a multi-channel pin-type test fixture, including a test table 1, a test position is provided on the upper side of the test table 1, fixed limit blocks 2 are provided on the front and rear sides of the test position, and movable clamping blocks 3 are provided on the left and right sides, and lifting and pressing blocks 4 are provided above them, and a plug-in rack 5 is provided above each movable clamping block 3, and a telescopic member 6 for driving the plug-in rack 5 to tilt and move is connected to the side of the plug-in rack 5 away from the test position, and a horizontal strip groove 7 is provided on the plug-in rack 5, and a plurality of first pin groups 8 are slidably connected to one of the horizontal strip grooves 7, and a plurality of second pin groups 9 are slidably connected to the other horizontal strip groove 7;

A plurality of first pin groups 8 are respectively arranged corresponding to a plurality of second pin groups 9, and are respectively connected to the two ends of the LED driving power supply 24 through the first pin group 8 and the second pin group 9, so that the power supply, the LED driving power supply 24 and the LED load are connected, and multiple LED driving power supplies 24 can be tested at the same time, thereby improving the test efficiency. The clamping of the LED driving power supply 24 can be conveniently positioned by fixing the limit block 2, and the horizontal displacement and vertical transfer of the LED driving power supply 24 can be respectively limited by moving the clamping block 3 and the lifting and lowering pressure block 4, thereby further improving the clamping accuracy and thereby improving the reliability of the test.

In order to facilitate the simultaneous testing of different numbers of LED driving power supplies 24, in the present embodiment, preferably, a longitudinal strip groove 10 is provided on the test bench 1, and a screw rod 11 is connected to the bottom of the fixed limit block 2. The screw rod 11 slides through the longitudinal strip groove 10, and is threadedly connected to a nut 12, and the nut 12 abuts against the bottom surface of the test bench 1. The purpose is to make the fixed limit block 2 form a locked or loosened state by rotating the nut 12. In the loose state, the screw rod 11 can move along the longitudinal strip groove 10 to adjust the relative distance between the two fixed limit blocks 2, thereby adjusting different numbers of LED driving power supplies 24 for clamping and positioning.

In order to facilitate the automatic clamping of the LED driving power supply 24 and improve the degree of automation, in this embodiment, preferably, a transverse strip groove 13 is provided on the test bench 1, and the bottom of the movable clamping block 3 is connected with a first slider 14, the first slider 14 slides through the transverse strip groove 13, and its bottom is connected with a push-pull block 15, the push-pull block 15 is connected with a first cylinder 16, and the first cylinder 16 is fixed to the bottom of the test bench 1, the purpose is to drive the push-pull block 15 to move by the first cylinder 16, and then the first slider 14 moves along the transverse strip groove 13, and drive the two movable clamping blocks 3 to automatically clamp the LED driving power supply 24, limit the horizontal displacement of the LED driving power supply 24, and make the ends of multiple LED driving power supplies 24 be flush, further improving the clamping accuracy.

In order to facilitate the automatic compression of the LED driving power supply 24 and improve the degree of automation, in the present embodiment, preferably, a gantry 17 is connected to the top of the test bench 1, and a second cylinder 18 is installed on the gantry 17. The bottom output end of the second cylinder 18 is fixedly connected to the top of the lifting and pressing block 4. The purpose is to drive the lifting and pressing block 4 to move downward by the second cylinder 18, so that the lifting and pressing block 4 automatically compresses the LED driving power supply 24, limits the vertical displacement of the LED driving power supply 24, and makes the top surfaces of multiple LED driving power supplies 24 flush, thereby further improving the clamping accuracy.

In order to facilitate improving the accuracy of the lifting stroke of the lifting pressure block 4, in the present embodiment, preferably, guide rods 19 are provided on the front and rear sides of the second cylinder 18, and the guide rods 19 are slidably connected to the gantry 17, and the bottom thereof is fixedly connected to the top of the lifting pressure block 4. The purpose is that when the second cylinder 18 drives the lifting pressure block 4 to lift, the guide rods 19 slide along the gantry 17, thereby improving the accuracy of the lifting stroke of the lifting pressure block 4.

In order to facilitate improving the accuracy of the test, in the present embodiment, preferably, the plug-in rack 5 is connected to a second slider 20, an inclined guide rail 21 is installed on the test bench 1, and the second slider 20 is slidably connected to the inclined guide rail 21. The purpose is to improve the moving stroke accuracy of the plug-in rack 5 by sliding the second slider 20 along the inclined guide rail 21, so as to facilitate accurate alignment with the LED driving power supply 24, so that the first pin group 8 and the second pin group 9 can accurately contact the contact end of the LED driving power supply 24 to prevent poor contact problems.

In order to facilitate the tilted and telescopic drive of the telescopic member 6, in the present embodiment, preferably, a pad block 22 is provided on the test bench 1, and the top surface of the pad block 22 is tilted. The telescopic member 6 is a double-rod cylinder, and it is fixed to the top surface of the pad block 22. The purpose is to enable the first pin group 8 and the second pin group 9 to accurately contact the contact end of the LED driving power supply 24 through the structure and installation position of the pad block 22 and the telescopic stroke of the telescopic member 6.

For the convenience of support, in the present embodiment, preferably, a support foot 23 is connected to the bottom of the test bench 1, the purpose of which is to support the test bench 1 through the support foot 23 so that there is space under the test bench 1 for installing the first cylinder 16.

The working principle and use process of the utility model are as follows: a plurality of LED driving power supplies 24 are placed on the test position, and the plurality of LED driving power supplies 24 are limited by two fixed limiting blocks 2. The distance between the two fixed limiting blocks 2 determines how many LED driving power supplies 24 can be placed on the test position. By rotating the nut 12, the fixed limiting block 2 is locked or loosened. In the loose state, the screw rod 11 can move along the longitudinal strip groove 10 to adjust the relative distance between the two fixed limiting blocks 2, and then adjust different numbers of LED driving power supplies 24 for clamping and positioning;

After the LED driver power supply 24 is clamped and positioned, the first slider 14 moves along the transverse strip groove 13, and drives the two movable clamping blocks 3 to automatically clamp the LED driver power supply 24, limiting the horizontal displacement of the LED driver power supply 24, so that the ends of the multiple LED driver power supplies 24 are arranged flush, and then the lifting and pressing blocks 4 are driven downward by the second cylinder 18, so that the lifting and pressing blocks 4 automatically press the LED driver power supply 24, limiting the vertical displacement of the LED driver power supply 24, so that the top surfaces of the multiple LED driver power supplies 24 are arranged flush, further improving the clamping accuracy;

Finally, two plug-in racks 5 are driven to move tiltedly by two telescopic members 6, so that one of the plug-in racks 5 drives the first plurality of plug-in pin groups 8 to move tiltedly, and the other plug-in rack 5 drives the second plurality of plug-in pin groups 9 to move tiltedly, so that the first plurality of plug-in pin groups 8 and the second plurality of plug-in pin groups 9 are connected to the LED driving power supplies 24 respectively.

Specifically, the first pin group 8 and the second pin group 9 are connected to a test device, and the test device provides power and LED load. During testing, the power end of the LED driving power supply 24 is connected to the first pin group 8, and the load end is connected to the second pin group 9, so that the power supply, the LED driving power supply 24 and the LED load are connected, and whether the LED driving power supply 24 can work normally is judged by whether the LED load works normally.

Finally, it should be noted that the above description is only a preferred example of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims (8)

1. The utility model provides a multichannel contact pin formula test fixture, includes testboard (1), its characterized in that: the test bench is characterized in that a test position is arranged on the upper side of the test bench (1), fixing limiting blocks (2) are arranged on the front side and the rear side of the test position, movable clamping blocks (3) are arranged on the left side and the right side of the test position, lifting pressing blocks (4) are arranged above the test bench, a plug frame (5) is arranged above the movable clamping blocks (3), one side of the plug frame (5) away from the test position is connected with a telescopic piece (6) for driving the plug frame to obliquely move, a horizontal strip-shaped groove (7) is formed in the plug frame (5), a plurality of first contact pin groups (8) are connected to the horizontal strip-shaped groove (7) in a sliding mode, and a plurality of second contact pin groups (9) are connected to the horizontal strip-shaped groove (7) in a sliding mode.

2. The multi-channel pin test fixture of claim 1, wherein: the test bench (1) is provided with a longitudinal strip groove (10), the bottom of the fixed limiting block (2) is connected with a screw rod (11), the screw rod (11) penetrates through the longitudinal strip groove (10) in a sliding mode, and is connected with a nut (12) through threads, and the nut (12) is in butt joint with the bottom surface of the test bench (1).

3. The multi-channel pin test fixture of claim 1, wherein: be equipped with horizontal bar groove (13) on testboard (1), the bottom of removal clamp block (3) is connected with first slider (14), first slider (14) slip run through in horizontal bar groove (13), and its bottom is connected with push-and-pull piece (15), push-and-pull piece (15) are connected with first cylinder (16), first cylinder (16) are fixed in the bottom of testboard (1).

4. The multi-channel pin test fixture of claim 1, wherein: the top of testboard (1) is connected with portal frame (17), install second cylinder (18) on portal frame (17), the bottom output of second cylinder (18) and the top fixed connection of lifting briquetting (4).

5. The multi-channel pin test fixture of claim 4, wherein: guide rods (19) are arranged on the front side and the rear side of the second air cylinder (18), the guide rods (19) are connected to the portal frame (17) in a sliding mode, and the bottoms of the guide rods are fixedly connected with the top of the lifting pressing block (4).

6. The multi-channel pin test fixture of claim 1, wherein: the plug frame (5) is connected with a second sliding block (20), an inclined guide rail (21) is arranged on the test table (1), and the second sliding block (20) is connected onto the inclined guide rail (21) in a sliding mode.

7. The multi-channel pin test fixture of claim 1, wherein: the test bench (1) is provided with a heightening block (22), the top surface of the heightening block (22) is obliquely arranged, and the telescopic piece (6) is a double-rod air cylinder and is fixed on the top surface of the heightening block (22).

8. The multi-channel pin test fixture of claim 1, wherein: the bottom of the test bench (1) is connected with a supporting foot (23).