CN220154499U

CN220154499U - PCB board test fixture location fixture

Info

Publication number: CN220154499U
Application number: CN202321635533.8U
Authority: CN
Inventors: 周继葆; 王奋平
Original assignee: Suzhou Shiwei Electronic Technology Co ltd
Current assignee: Suzhou Shiwei Electronic Technology Co ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2023-12-08
Anticipated expiration: 2033-06-27

Abstract

The utility model discloses a positioning and clamping mechanism of a PCB (printed circuit board) testing jig, which relates to the technical field of PCB boards and comprises a test bench, wherein the test bench is provided with a PCB board, four slide ways are arranged on the test bench, slide columns are connected to the insides of the four slide ways in a sliding manner, movable blocks are fixedly arranged on the four slide columns, limiting rods are fixedly arranged in the four slide ways, and the positioning and clamping mechanism of the PCB board testing jig enables the four slide columns and the four movable blocks to reset through the elasticity of four springs, so that the four movable blocks relatively move, and further enables a plurality of clamping rods to clamp and position the PCB board, thereby facilitating positioning the PCB board on the test bench, preventing the PCB board from moving on the test bench, improving the convenience and the accuracy of detecting the later stage of the PCB board, facilitating positioning and clamping the four sides of the PCB board, and further improving the accuracy of testing the PCB board.

Description

PCB board test fixture location fixture

Technical Field

The utility model relates to the technical field of PCB boards, in particular to a positioning and clamping mechanism of a PCB board testing jig.

Background

PCB (PrintedCircuitBoard) the Chinese name printed circuit board, also called printed circuit board, is an important electronic component, is a support for electronic components, and is a carrier for electrical connection of electronic components. It is called a "printed" circuit board because it is made using electronic printing.

After the PCB is assembled, the PCB needs to be tested, however, when the PCB is tested, the PCB is prevented from moving, and then the positioning clamping mechanisms are needed, however, when the existing positioning clamping mechanisms are used, the two sides of the PCB are usually clamped directly, four sides of the PCB cannot be clamped, and deviation and the like are easy to occur when the PCB is positioned.

Disclosure of Invention

The utility model aims to provide a positioning and clamping mechanism for a PCB test fixture, which can solve the problem of positioning and clamping deviation in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a PCB board test fixture location fixture, includes the testboard, is provided with the PCB board on the testboard, four slides have been seted up on the testboard, the equal sliding connection in inside of four slides has the traveller, equal fixed mounting has the movable block on four travellers, the equal fixed mounting in inside of four slides has the restriction pole, the surface of four restriction poles respectively with the inside sliding connection of four travellers, all movable sleeve has the spring on four restriction poles, the inside sliding connection of movable block has the limiting plate, the inside fixed mounting of movable block has elastic spring, elastic spring is close to the one end and the limiting plate fixed connection of limiting plate.

Preferably, the end of the limiting plate, which is far away from the elastic spring, is fixedly provided with a clamping rod, and the clamping rod penetrates through the moving block in a sliding manner and extends to the outside of the moving block.

Preferably, the inside rotation of testboard is connected with the axis of rotation, has fixedly cup jointed the disc in the axis of rotation, and fixed mounting has the extrusion pole on the disc, and the extrusion pole is the slope setting.

Preferably, one end of the sliding column extending to the inside of the test bench is rotatably connected with a rotating wheel, and the rotating wheel is in contact with the surface of the disc.

Preferably, the surface of the rotating shaft is fixedly sleeved with a gear, and the surface of the gear is connected with a toothed plate in a meshed manner.

Preferably, the inside sliding connection of testboard has the movable rod, and the movable rod extends to the inside one end of testboard and pinion rack fixed connection.

Preferably, the movable rod is movably sleeved with a reset spring, and two ends of the reset spring are fixedly connected with the movable rod and the test bench respectively.

Compared with the prior art, the utility model has the beneficial effects that:

(1) This PCB board test fixture location fixture makes four slide posts and four movable blocks reset through the elasticity of four springs, and then makes four movable blocks relative movement, and then makes a plurality of clamping levers carry out the centre gripping location to the PCB board, is convenient for fix a position the PCB board on the testboard, prevents that the PCB board from appearing moving on the testboard, improves the convenience and the precision that detect the PCB board later stage, is convenient for fix a position the centre gripping to the four sides of PCB board, and then improves the precision to the PCB board test.

(2) This PCB board test fixture location fixture when carrying out location centre gripping to the PCB board of different shapes, can make clamping lever and limiting plate to the inside slip of movable block, extrudees elastic spring, and then makes a plurality of clamping levers and the marginal laminating of PCB board, and then realizes fixing a position the PCB board of different shapes, improves the convenience to the PCB board location, has guaranteed laminating between movable block and the PCB board.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic diagram of a positioning and clamping mechanism of a PCB testing fixture;

FIG. 2 is an enlarged schematic view of the utility model at A in FIG. 1;

FIG. 3 is an internal schematic view of a moving block according to the present utility model;

FIG. 4 is an internal schematic view of the test stand of the present utility model.

Reference numerals: 1. a test bench; 2. a return spring; 3. a moving rod; 4. a PCB board; 5. a slideway; 6. a moving block; 7. a clamping rod; 8. a disc; 9. a spool; 10. a restraining bar; 11. a spring; 12. an elastic spring; 13. a limiting plate; 14. a rotating wheel; 15. an extrusion rod; 16. a toothed plate; 17. a rotating shaft; 18. a gear.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: a PCB test fixture positioning and clamping mechanism comprises a test bench 1. Be provided with PCB board 4 on test bench 1, seted up four slide 5 on the test bench 1, the inside of four slide 5 is all sliding connection has slide column 9. The four slide posts 9 are fixedly provided with moving blocks 6, the inside of the four slide ways 5 is fixedly provided with limiting rods 10, and the surfaces of the four limiting rods 10 are respectively and slidably connected with the inside of the four slide posts 9. The four limiting rods 10 are movably sleeved with springs 11, limiting plates 13 are slidably connected in the moving blocks 6, elastic springs 12 are fixedly arranged in the moving blocks 6, and one ends, close to the limiting plates 13, of the elastic springs 12 are fixedly connected with the limiting plates 13. The end of the limiting plate 13, which is far away from the elastic spring 12, is fixedly provided with a clamping rod 7, and the clamping rod 7 penetrates through the moving block 6 in a sliding manner and extends to the outside of the moving block 6.

The four moving blocks 6 all move outwards, then the PCB 4 is placed on the test bench 1, and then the four sliding columns 9 and the four moving blocks 6 are reset through the elastic force of the four springs 11, and then the four moving blocks 6 move relatively. The clamping and positioning are carried out on the PCB 4 by the clamping rods 7, the PCB 4 is convenient to position on the test bench 1, the PCB 4 is prevented from moving on the test bench 1, the convenience and the detection accuracy of the later detection of the PCB 4 are improved, the four sides of the PCB 4 are convenient to position and clamp, and the accuracy of the test of the PCB 4 is improved.

When the PCB 4 with different shapes is positioned and clamped, the clamping rod 7 and the limiting plate 13 can slide towards the inside of the moving block 6, and the elastic spring 12 is extruded. The edges of a plurality of clamping rods 7 and the PCB 4 are attached, so that the PCB 4 with different shapes is positioned, the convenience in positioning the PCB 4 is improved, and the attachment between the moving block 6 and the PCB 4 is ensured.

The inside rotation of testboard 1 is connected with axis of rotation 17, has fixedly cup jointed disc 8 on the axis of rotation 17, and fixed mounting has extrusion rod 15 on the disc 8. The extrusion rod 15 is obliquely arranged, and one end of the sliding column 9 extending to the inside of the test bench 1 is rotatably connected with a rotating wheel 14. The rotating wheel 14 is contacted with the surface of the disc 8, and a gear 18 is fixedly sleeved on the surface of the rotating shaft 17. The gear 18 is connected with the pinion rack 16 on the surface in a meshed manner, the inside sliding connection of test bench 1 has movable rod 3, the one end that movable rod 3 extends to the inside of test bench 1 and pinion rack 16 fixed connection, movable sleeve has gone up in movable sleeve has reset spring 2, reset spring 2's both ends respectively with movable rod 3 and test bench 1 fixed connection.

Pressing the moving rod 3, the moving rod 3 slides into the test bench 1 to squeeze the return spring 2, the toothed plate 16 moves, and the toothed plate 16 drives the gear 18 to rotate. The axis of rotation 17 and disc 8 rotate, and then make the extrusion pole 15 rotate along with disc 8, make extrusion pole 15 extrude slide post 9 and rotation wheel 14, and then make slide post 9 slide in slide 5's inside, make slide post 9 extrude spring 11, and then make movable block 6 outwards move, four movable blocks 6 adopt the same mode to remove, and then make four movable blocks 6 outwards remove simultaneously, be convenient for carry out simultaneous control to four movable blocks 6, improve the convenience to four movable block 6 controls, reduce the degree of difficulty of device operation.

Working principle: pressing down movable rod 3, and then making movable rod 3 to the inside slip of testboard 1 extrude reset spring 2, and then make pinion rack 16 remove, make pinion rack 16 drive gear 18 rotate, and then make axis of rotation 17 and disc 8 rotate, and then make extrusion rod 15 rotate along with disc 8, make extrusion rod 15 extrude slide post 9 and rotation wheel 14, and then make slide post 9 slide in slide 5's inside, make slide post 9 extrude spring 11, and then make movable block 6 outwards remove, four movable blocks 6 adopt the same mode to remove, and then make four movable blocks 6 outwards remove simultaneously.

The four movable blocks 6 all outwards move, then put the PCB 4 on the test bench 1, and then make four slide posts 9 and four movable blocks 6 reset through the elasticity of four springs 11, and then make four movable blocks 6 relative movement, and then make a plurality of clamping rods 7 carry out the centre gripping location to the PCB 4, be convenient for fix a position the PCB 4.

When carrying out location centre gripping to the PCB board 4 of different shapes, can make clamping lever 7 and limiting plate 13 to the inside slip of movable block 6, extrude elasticity spring 12, and then make a plurality of clamping levers 7 and the marginal laminating of PCB board 4, and then realize fixing a position the PCB board 4 of different shapes.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. The utility model provides a PCB board test fixture location fixture, includes testboard (1), is provided with PCB board (4), its characterized in that on testboard (1): four slide ways (5) have been seted up on testboard (1), the inside equal sliding connection of four slide ways (5) has traveller (9), equal fixed mounting has movable block (6) on four traveller (9), the inside equal fixed mounting of four slide ways (5) has restriction pole (10), the surface of four restriction poles (10) respectively with the inside sliding connection of four traveller (9), spring (11) have all been movably cup jointed on four restriction poles (10), the inside sliding connection of movable block (6) has limiting plate (13), the inside fixed mounting of movable block (6) has elastic spring (12), the one end that elastic spring (12) is close to limiting plate (13) and limiting plate (13) fixed connection.

2. The positioning and clamping mechanism of the PCB testing jig according to claim 1, wherein: one end of the limiting plate (13) far away from the elastic spring (12) is fixedly provided with a clamping rod (7), and the clamping rod (7) penetrates through the moving block (6) in a sliding mode and extends to the outside of the moving block (6).

3. The positioning and clamping mechanism of the PCB testing jig according to claim 2, wherein: the inside rotation of testboard (1) is connected with axis of rotation (17), has fixedly cup jointed disc (8) on axis of rotation (17), and fixed mounting has extrusion pole (15) on disc (8), and the extrusion pole (15) is the slope setting.

4. A PCB testing jig positioning and clamping mechanism according to claim 3, wherein: one end of the sliding column (9) extending to the inside of the test bench (1) is rotatably connected with a rotating wheel (14), and the rotating wheel (14) is in contact with the surface of the disc (8).

5. The positioning and clamping mechanism of the PCB testing jig according to claim 4, wherein: the surface of the rotating shaft (17) is fixedly sleeved with a gear (18), and the surface of the gear (18) is connected with a toothed plate (16) in a meshed manner.

6. The positioning and clamping mechanism of the PCB testing jig according to claim 5, wherein: the inside sliding connection of testboard (1) has movable rod (3), and the one end that movable rod (3) extended to testboard (1) inside is connected with pinion rack (16) fixed.

7. The positioning and clamping mechanism of the PCB testing jig according to claim 6, wherein: the movable rod (3) is movably sleeved with a reset spring (2), and two ends of the reset spring (2) are fixedly connected with the movable rod (3) and the test bench (1) respectively.