CN220040657U

CN220040657U - Probe assembly test fixture

Info

Publication number: CN220040657U
Application number: CN202321313866.9U
Authority: CN
Inventors: 文柳华; 钟小春; 刘付志龙
Original assignee: Zhuhai Benpu Electronics Co ltd
Current assignee: Zhuhai Benpu Electronics Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-11-17
Anticipated expiration: 2033-05-29

Abstract

The utility model belongs to the field of probe assembly test tools, in particular to a probe assembly test tool, which aims at the problems that the existing test tool needs to be positioned in the use process, but is mostly clamped and positioned manually, so that the automatic and rapid positioning of a PCB is inconvenient, and the test efficiency is reduced, and the utility model proposes a scheme that the probe assembly test tool comprises a box body, wherein an L-shaped support plate is fixedly arranged at the top of the box body through welding; the L-shaped support plate is fixedly provided with a tester body, and the tester body is connected with a test probe; the top of the box body is connected with the supporting plate, two symmetrical mounting holes are formed in the supporting plate, and the sliding plates are slidably mounted in the two mounting holes.

Description

Probe assembly test fixture

Technical Field

The utility model relates to the technical field of probe assembly testing tools, in particular to a probe assembly testing tool.

Background

The probe is a test needle for testing PCBA, the surface of the probe is gold-plated, and the inside of the probe is provided with a high-performance spring with the average service life of 3-10 ten thousand times. Probes can be classified into according to the use of electronic testing: optical circuit board test probe: the circuit board test and the open circuit and short circuit detection probes before the components are not installed can replace imported products by most of the domestic probe products; on-line test probe: detecting probes after components are installed on the PCB; the core technology of the high-end product is mastered in the hands of foreign companies, and partial domestic probe products are successfully developed and can replace imported probe products; microelectronic test probes: namely, wafer test or chip IC detection probes, the core technology is still mastered in the hands of foreign companies, domestic manufacturers actively participate in research and development, but only a small part of successful production.

In the prior art, the test fixture is required to position the PCB circuit board in the use process, but most of the test fixture is clamped and positioned manually, so that the automatic and rapid positioning of the PCB circuit board is inconvenient, the test efficiency is reduced, and the probe assembly test fixture is provided for solving the problems.

Disclosure of Invention

The utility model aims to solve the defects that in the prior art, a test fixture needs to be used for positioning a PCB circuit board, but most of the test fixture is manually used for clamping and positioning the PCB circuit board, so that the automatic and rapid positioning of the PCB circuit board is inconvenient, and the test efficiency is reduced.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the probe assembly testing tool comprises a box body, wherein an L-shaped support plate is fixedly arranged at the top of the box body through welding; the L-shaped support plate is fixedly provided with a tester body, and the tester body is connected with a test probe; the top of the box body is connected with a supporting plate, two symmetrical mounting holes are formed in the supporting plate, sliding plates are slidably mounted in the two mounting holes, sliding grooves are formed in one sides of the two sliding plates, placing plates are slidably mounted in the two sliding grooves, and positioning mechanisms are arranged on the two placing plates; two symmetrical mounting grooves are formed in the L-shaped support plate.

Preferably, a first through hole is formed in one side of the L-shaped support plate, the first through hole is communicated with the two mounting grooves, the worm is rotatably mounted in the first through hole, a motor is fixedly mounted on one side of the L-shaped support plate, and an output shaft of the motor is fixedly connected with one end of the worm.

Preferably, the positioning mechanism comprises two guide rods, the top of each placing plate is provided with a placing groove, the two placing plates are provided with first sliding holes, the two guide rods are respectively and slidably installed in the two first sliding holes, one ends of the two guide rods are respectively and fixedly installed with a positioning plate through welding, the bottom of each positioning plate is fixedly connected with a rubber pad, the outer sides of the guide rods are respectively sleeved with a first spring, and the two ends of each first spring are respectively and fixedly connected with the top of each placing plate and the bottom of each positioning plate through welding.

Preferably, the top of backup pad is through welding fixed mounting has two fixed blocks of symmetry, two second screw hole has all been seted up on the fixed block, two equal screw thread of second screw hole installs the second screw rod, two the one side of slide is all through welding fixed mounting has the bearing, two the inner circle of bearing passes through welded fixed connection with the outside of two second screw rods respectively.

Preferably, two second slide holes are formed in the placing plate, slide rods are slidably mounted in the second slide holes, two ends of the slide rods are fixedly connected with the top inner wall and the bottom inner wall of the sliding groove respectively through welding, two second springs are sleeved on the outer sides of the slide rods, and two ends of the second springs are fixedly connected with the outer sides of the placing plate and the inner wall of the sliding groove respectively through welding.

Preferably, two symmetrical first threaded holes are formed in the supporting plate, two second through holes are formed in the inner wall of the bottom of the mounting groove, first screw rods are arranged in the first threaded holes in a threaded mode, worm gears are fixedly arranged at one ends of the first screw rods through welding, and the worm gears are meshed with the worm.

Preferably, two symmetrical guide holes are formed in the support plate, guide shafts are slidably mounted in the two guide holes, and two ends of each guide shaft are fixedly connected with the outer sides of the L-shaped support plate and the box body respectively through welding.

In the utility model, the probe assembly testing tool has the beneficial effects that:

1. this scheme is when opening the motor, and the motor drives the worm and rotates, and the worm drives two worm wheels and rotates, and two worm wheels drive two first screw rods respectively and rotate, and two first screw rods drive the vertical upward movement of backup pad, and then two guide arms lose the extrusion force, and two first springs can drive two locating plates respectively through deformation force and vertically move downwards, and then two locating plates can carry out quick location to the PCB circuit board to can effectively improve efficiency of software testing.

2. According to the scheme, when the two second screws are rotated, the two second screws respectively drive the two bearings and the two sliding plates to horizontally move, the two sliding plates respectively drive the two placing plates to horizontally move, and then the distance between the two placing plates can be adjusted, so that the two placing plates can be suitable for PCB circuit boards with different sizes.

The utility model can be used for conveniently and rapidly positioning the PCB circuit board, thereby effectively improving the testing efficiency, and has simple structure and convenient use.

Drawings

FIG. 1 is a schematic diagram of a front view of a probe assembly test fixture according to the present utility model;

FIG. 2 is an enlarged schematic view of the portion A of FIG. 1 of a probe assembly test fixture according to the present utility model;

fig. 3 is an enlarged schematic structural diagram of a portion B of the probe assembly test fixture according to the present utility model in fig. 1.

In the figure: 1. a case; 2. an L-shaped support plate; 3. a support plate; 4. a guide shaft; 5. a mounting hole; 6. a fixed block; 7. a second screw; 8. a slide plate; 9. a bearing; 10. placing a plate; 11. a placement groove; 12. a slide bar; 13. a second spring; 14. a guide rod; 15. a positioning plate; 16. a first spring; 17. a tester body; 18. a test probe; 19. a motor; 20. a mounting groove; 21. a worm; 22. a worm wheel; 23. a first screw.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

Referring to fig. 1, a probe assembly test fixture comprises a box body 1, L-shaped support plates 2 are fixedly mounted on the top of the box body 1 through welding, a tester body 17 is fixedly mounted on the L-shaped support plates 2, a test probe 18 is connected to the tester body 17, a support plate 3 is connected to the top of the box body 1, two symmetrical mounting holes 5 are formed in the support plate 3, sliding plates 8 are mounted in the two mounting holes 5 in a sliding manner, sliding grooves are formed in one sides of the two sliding plates 8, placing plates 10 are mounted in the two sliding grooves in a sliding manner, a positioning mechanism is arranged on the two placing plates 10, two symmetrical mounting grooves 20 are formed in the L-shaped support plates 2, two guide holes are formed in the support plate 3, guide shafts 4 are mounted in the two guide holes in a sliding manner, and two ends of each guide shaft 4 are respectively fixedly connected with the outer sides of the L-shaped support plates 2 and the box body 1 through welding, and when the support plate 3 moves vertically, the two guide shafts 4 can play a role in stabilizing the vertical movement of the support plate 3.

Referring to fig. 2, positioning mechanism includes two guide arms 14, the standing groove 11 has all been seted up at the top of two placement plate 10, first slide hole has all been seted up on two placement plate 10, two guide arms 14 slidable mounting respectively in two first slide holes, the one end of two guide arms 14 has locating plate 15 through welded fastening, the equal fixedly connected with rubber pad in bottom of two locating plate 15, the outside of two guide arms 14 all overlaps and is equipped with first spring 16, the both ends of first spring 16 respectively with the top of placement plate 10 and the bottom of locating plate 15 pass through welded fastening, the top fixed mounting of backup pad 3 has two fixed blocks 6 of symmetry, second screw hole has all been seted up on two fixed blocks 6, equal threaded mounting of two second screw rods 7 in two second screw holes has, one side of two slide 8 has bearing 9 through welded fastening, the inner circle of two bearing 9 respectively with the outside of two second screw rods 7 pass through welded fastening, when rotating two second screw rods 7, two second screw rods 7 can drive two bearing 9 and two horizontal movement 8 respectively, the both ends of two sliding rod 10 have been equipped with two inner wall 13 through welded fastening, the both ends of two sliding connection of two sliding rod 12 are equipped with two sliding connection of two sliding plates 12 respectively in two sliding connection hole, the inner wall 13 are equipped with two sliding connection.

Referring to fig. 3, a first through hole is formed in one side of the l-shaped support plate 2, the first through hole is communicated with two mounting grooves 20, a worm 21 is rotatably mounted in the first through hole, a motor 19 is fixedly mounted on one side of the l-shaped support plate 2, an output shaft of the motor 19 is fixedly connected with one end of the worm 21, two symmetrical first threaded holes are formed in the support plate 3, second through holes are formed in inner walls of bottoms of the two mounting grooves 20, first threaded rods 23 are mounted in the two first threaded holes in a threaded manner, worm gears 22 are fixedly mounted at one ends of the two first threaded rods 23 through welding, and the two worm gears 22 are meshed with the worm 21, so that when the worm 21 rotates, the two worm gears 22 can respectively drive the two first threaded rods 23 to rotate.

In this embodiment, when using, can be through rotating two second screw rods 7, two second screw rods 7 drive two bearings 9 and two slide 8 horizontal migration respectively, two slide 8 drive two boards 10 horizontal migration of placing respectively, and then can adjust the distance between two boards 10 of placing, and then can be applicable to not unidimensional PCB circuit board, then place the PCB circuit board in two standing grooves 11, open motor 19, motor 19 drives worm 21 and rotates, worm 21 drives two worm wheels 22 and rotates, two worm wheels 22 drive two first screw rods 23 respectively and rotate, two first screw rods 23 drive backup pad 3 vertical upward movement, backup pad 3 drives two fixed blocks 6 vertical upward movement, two slide 8 drive two boards 10 and PCB circuit board respectively and vertically upward move, and then two guide arms 14 lose the extrusion force, two first springs 16 can drive two locating plates 15 vertical downward movement through the deformation force, and then two locating plates 15 can carry out quick location to the PCB circuit board, improve test efficiency, when the vertical movement of circuit board to test probe 18 and the effect that two second springs 13 can be applied to the test body and test body 18 can be closely to the PCB circuit board through the test instrument when the vertical movement of test probe 18.

Example two

The difference between this embodiment and the first embodiment is that: the bottom inner wall of two standing grooves 11 is all fixed mounting has pressure sensor, fixed mounting has the controller on the box 1, pressure sensor, controller and motor 19 connect gradually, and two pressure sensor can detect the extrusion force that the PCB circuit board received, and when the extrusion force that the PCB circuit board received reached the settlement threshold value, two pressure sensor sent instruction to the controller, and controller control motor 19 self-closing avoids the extrusion force too big damage PCB circuit board.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The probe assembly testing tool comprises a box body (1) and is characterized in that an L-shaped support plate (2) is fixedly arranged at the top of the box body (1);

a tester body (17) is fixedly arranged on the L-shaped support plate (2), and a test probe (18) is connected to the tester body (17);

the top of the box body (1) is connected with a supporting plate (3), two symmetrical mounting holes (5) are formed in the supporting plate (3), sliding plates (8) are slidably mounted in the two mounting holes (5), sliding grooves are formed in one sides of the two sliding plates (8), placing plates (10) are slidably mounted in the two sliding grooves, and positioning mechanisms are arranged on the two placing plates (10);

two symmetrical mounting grooves (20) are formed in the L-shaped support plate (2).

2. The probe assembly testing tool according to claim 1, wherein two symmetrical guide holes are formed in the supporting plate (3), guide shafts (4) are slidably mounted in the two guide holes, and two ends of each guide shaft (4) are fixedly connected with the outer sides of the L-shaped support plate (2) and the box body (1) respectively.

3. The probe assembly test fixture according to claim 2, wherein a first through hole is formed in one side of the L-shaped support plate (2), the first through hole is communicated with the two mounting grooves (20), a worm (21) is rotatably mounted in the first through hole, a motor (19) is fixedly mounted on one side of the L-shaped support plate (2), and an output shaft of the motor (19) is fixedly connected with one end of the worm (21).

4. A probe assembly test fixture according to claim 3, wherein two symmetrical first threaded holes are formed in the supporting plate (3), second through holes are formed in the inner walls of the bottoms of the mounting grooves (20), first screw rods (23) are arranged in the two first threaded holes in a threaded mode, worm gears (22) are fixedly arranged at one ends of the two first screw rods (23), and the two worm gears (22) are meshed with the worm (21).

5. The probe assembly test fixture according to claim 4, wherein the positioning mechanism comprises two guide rods (14), the tops of the two placing plates (10) are provided with placing grooves (11), the two placing plates (10) are provided with first sliding holes, the two guide rods (14) are respectively and slidably mounted in the two first sliding holes, one ends of the two guide rods (14) are fixedly mounted with positioning plates (15), the bottoms of the two positioning plates (15) are fixedly connected with rubber pads, the outer sides of the two guide rods (14) are respectively sleeved with first springs (16), and two ends of each first spring (16) are respectively and fixedly connected with the tops of the placing plates (10) and the bottoms of the positioning plates (15).

6. The probe assembly testing tool according to claim 5, wherein two placing plates (10) are provided with second sliding holes, sliding rods (12) are slidably installed in the second sliding holes, two ends of each sliding rod (12) are fixedly connected with the top inner wall and the bottom inner wall of each sliding groove respectively, two second springs (13) are sleeved on the outer sides of the two sliding rods (12), and two ends of each second spring (13) are fixedly connected with the outer sides of the placing plates (10) and the inner walls of the sliding grooves respectively.

7. The probe assembly test fixture according to claim 6, wherein two symmetrical fixing blocks (6) are fixedly installed at the top of the supporting plate (3), second threaded holes are formed in the two fixing blocks (6), second threaded rods (7) are installed in the two second threaded holes in a threaded mode, bearings (9) are fixedly installed on one sides of the two sliding plates (8), and inner rings of the two bearings (9) are fixedly connected with the outer sides of the two second threaded rods (7) respectively.