CN215931959U

CN215931959U - Function test fixture

Info

Publication number: CN215931959U
Application number: CN202122204560.7U
Authority: CN
Inventors: 卢智勇
Original assignee: Xiamen Yuanqian Electronics Co ltd
Current assignee: Xiamen Yuanqian Electronics Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-03-01
Anticipated expiration: 2031-09-13

Abstract

The utility model relates to the technical field of integrated circuits, in particular to a functional test fixture, which comprises a test box, a clamp and a test device, wherein the top of the test box is provided with a test port, the left front side and the left rear side in the test box are respectively provided with a sliding guide rail, the two sliding guide rails are respectively connected with a sliding block in a sliding way, the clamp comprises a fixed plate, two fixed blocks and a clamping plate, the front side and the rear side of the fixed plate are respectively connected with the two sliding blocks, the two fixed blocks are respectively fixed on the left front side and the left rear side of the top of the fixed plate, a clamping rotating shaft is rotatably connected between the two fixed blocks, the clamping rotating shaft is provided with a rotating plate, a torsional spring is arranged in a gap between the rotating plate and the two fixed blocks, the left side of the clamping plate is connected with the right side of the rotating plate, the right side of the clamping plate is arc-shaped and is tilted upwards, the test device comprises a support plate, two bracing pieces, clamp plate, spring and telescopic link. The contact of the gold surface can be increased during the test of the gold finger, and the gold surface is prevented from being damaged.

Description

Function test fixture

Technical Field

The utility model relates to the technical field of integrated circuits, in particular to a function test fixture.

Background

A connecting finger in an integrated circuit is computer hardware such as: all signals between the memory strip and the memory slot, between the video card and the video card slot and other slots of similar hardware are transmitted through the golden finger. The gold finger consists of a plurality of golden conductive contacts, which are called "gold fingers" because their surfaces are gold plated and the conductive contacts are arranged like fingers. The gold finger is actually covered with a layer of gold on the copper-clad plate through an electroplating process, because the gold has extremely strong oxidation resistance, an internal circuit can be protected from being corroded, the electric conductivity is also very strong, signal loss can not be caused, and meanwhile, the gold has extremely strong ductility, so that the contact area between the contacts can be larger under proper pressure, the contact resistance is reduced, and the signal transmission efficiency is improved.

When the golden finger is produced, the contact surface of the golden finger needs to be tested, but most of the existing testing modes adopt a probe testing mode, and the gold surface is easy to damage due to the single stress point of the probe testing gold surface.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a function test jig which can increase the contact of a gold surface during a gold finger test and avoid damaging the gold surface.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the functional test fixture comprises a test box, a clamp and a test device, wherein a test port is formed in the top of the test box, sliding guide rails are arranged on the left front side and the left rear side inside the test box, sliding blocks are connected to the two sliding guide rails in a sliding mode, the clamp comprises a fixed plate, two fixed blocks and a clamping plate, the front side and the rear side of the fixed plate are respectively connected with the two sliding blocks, the two fixed blocks are respectively fixed on the left front side and the left rear side of the top of the fixed plate, a clamping rotating shaft is connected between the two fixed blocks in a rotating mode, a rotating plate is arranged on the clamping rotating shaft, torsion springs are arranged in gaps between the rotating plate and the two fixed blocks, the left side of the clamping plate is connected with the right side of the rotating plate, the right side of the clamping plate is arc-shaped and is tilted upwards, the test device comprises a support plate, two support rods, a pressing plate, a spring and a telescopic rod, the support plate is fixed on the right side of the bottom inside the test box, the front side and the rear side at backup pad top are fixed respectively to two bracing pieces, rotate between two bracing pieces and be connected with the back shaft, the clamp plate suit is on the back shaft, and the bottom left side of clamp plate is provided with the briquetting, and test circuit board is installed at the top of backup pad, the last a plurality of test golden fingers that are provided with of test circuit board, the bottom and a plurality of test golden fingers of briquetting contact, the right-hand member at the clamp plate is fixed on the top of spring, and the bottom mounting of spring is in the backup pad, the top right side in test box inside is installed on the top of telescopic link, and the bottom of telescopic link contacts with the top of backup pad.

Preferably, still include the pilot lamp, the pilot lamp is installed the right side of test box, the pilot lamp with test golden finger electric connection.

Preferably, the test device further comprises two positioning plates, the two positioning plates are respectively arranged on the front side and the rear side of the top of the supporting plate, and the two positioning plates are located on the right side of the test golden finger.

Preferably, still include the backing plate, the backing plate is fixed the bottom of splint, and the material of backing plate is the rubber material.

Preferably, still include the deflector, the deflector is installed the left end of backup pad, the deflector is arc and left end downward sloping, the right-hand member at deflector top and the top parallel and level of backup pad.

Preferably, still include the shield, the shield is installed the inside of test port, the shield rotates with the inside of test port and is connected.

(III) advantageous effects

Compared with the prior art, the utility model provides a function test fixture, which has the following beneficial effects:

the function testing jig has the advantages that the clamping plate keeps certain pressure on the fixing plate through the elasticity of the torsion spring, so that a circuit board to be tested can be fixed through the clamping plate, then the telescopic rod is used for pushing the right side of the clamping plate downwards, the clamping plate and the supporting shaft are made to rotate, the left end of the clamping plate is lifted, the pressing block is separated from the testing golden finger, the spring is compressed, then the sliding block is made to drive the circuit board to be tested to move rightwards through sliding, the golden finger of the circuit board to be tested is made to move right above the testing golden finger, then the telescopic rod is made to retract, and the pressing block makes the golden finger to be tested fully contact with the testing golden finger through the elasticity of the spring, so that the golden finger to be tested is tested; compared with a probe test mode, the test method can increase the contact area of the golden finger during test, thereby avoiding damage to the golden surface.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the clamp of the present invention;

FIG. 3 is a schematic left side view of the testing device of the present invention;

FIG. 4 is a top view of the support plate of the present invention;

in the figure: 1. a test box; 2. a sliding guide rail; 3. a slider; 4. a fixing plate; 5. a fixed block; 6. a splint; 7. clamping the rotating shaft; 8. a rotating plate; 9. a torsion spring; 10. a support plate; 11. a support bar; 12. pressing a plate; 13. a spring; 14. a telescopic rod; 15. a support shaft; 16. briquetting; 17. testing the circuit board; 18. testing the golden finger; 19. an indicator light; 20. positioning a plate; 21. a base plate; 22. a guide plate; 23. and a dust cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the functional test fixture of the utility model comprises a test box 1, a fixture and a test device, wherein a test port is arranged at the top of the test box 1, sliding guide rails 2 are arranged at the left front side and the left rear side of the interior of the test box 1, sliders 3 are slidably connected to the two sliding guide rails 2, the fixture comprises a fixed plate 4, two fixed blocks 5 and a clamping plate 6, the front side and the rear side of the fixed plate 4 are respectively connected with the two sliders 3, the two fixed blocks 5 are respectively fixed at the left front side and the left rear side of the top of the fixed plate 4, a clamping rotating shaft 7 is rotatably connected between the two fixed blocks 5, a rotating plate 8 is arranged on the clamping rotating shaft 7, a torsion spring 9 is arranged in a gap between the rotating plate 8 and the two fixed blocks 5, the left side of the clamping plate 6 is connected with the right side of the rotating plate 8, the right side of the clamping plate 6 is arc-shaped and tilts upwards, the testing device comprises a supporting plate 10, two supporting rods 11, a pressing plate 12, a spring 13 and a telescopic rod 14, wherein the supporting plate 10 is fixed on the right side of the bottom inside a testing box 1, the two supporting rods 11 are respectively fixed on the front side and the rear side of the top of the supporting plate 10, a supporting shaft 15 is rotatably connected between the two supporting rods 11, the pressing plate 12 is sleeved on the supporting shaft 15, a pressing block 16 is arranged on the left side of the bottom of the pressing plate 12, a testing circuit board 17 is installed on the top of the supporting plate 10, a plurality of testing golden fingers 18 are arranged on the testing circuit board 17, the bottom of the pressing block 16 is in contact with the plurality of testing golden fingers 18, the top end of the spring 13 is fixed at the right end of the pressing plate 12, the bottom end of the spring 13 is fixed on the supporting plate 10, the top end of the telescopic rod 14 is installed on the right side of the top inside the testing box 1, and the bottom end of the telescopic rod 14 is in contact with the top of the supporting plate 10, the clamping plate 6 keeps a certain pressure on the fixing plate 4 through the elasticity of the torsion spring 9, so that the circuit board to be tested can be fixed by the clamping plate 6, then the telescopic rod 14 is used for pushing the right side of the clamping plate 12 downwards, the clamping plate 12 and the supporting shaft 15 are rotated, the left end of the clamping plate 12 is lifted, the pressing block 16 is separated from the testing golden finger 18, the spring 13 is compressed, then the sliding block 3 is used for driving the circuit board to be tested to move rightwards through sliding, the golden finger of the circuit board to be tested is moved to be right above the testing golden finger 18, then the telescopic rod 14 is retracted, the pressing block 16 is used for enabling the golden finger to be tested to be fully contacted with the testing golden finger 18 through the elasticity of the spring 13, and therefore the golden finger to be tested is tested; compared with a probe test mode, the test method can increase the contact area of the golden finger during test, thereby avoiding damage to the golden surface.

It should be further noted that the test box further comprises an indicator lamp 19, the indicator lamp 19 is installed on the right side of the test box 1, the indicator lamp 19 is electrically connected with the test golden finger 18, the indicator lamp 19 can display a test result, the test is proper and green, and the test is unqualified and red, so that the test result is clear; the testing device further comprises two positioning plates 20, the two positioning plates 20 are respectively installed on the front side and the rear side of the top of the supporting plate 10, the two positioning plates 20 are located on the right side of the testing golden finger 18, and the positioning plates 20 can mark the position where the circuit board to be tested reaches the right end of the testing device after entering the testing device, so that the circuit board to be tested can be conveniently placed in the testing device by the sliding block 3; the circuit board testing device is characterized by further comprising a backing plate 21, wherein the backing plate 21 is fixed at the bottom of the clamping plate 6, the backing plate 21 is made of rubber, and the clamping plate 6 can be prevented from crushing the circuit board to be tested through the backing plate 21; the circuit board testing device is characterized by further comprising a guide plate 22, wherein the guide plate 22 is installed at the left end of the supporting plate 10, the guide plate 22 is arc-shaped, the left end of the guide plate 22 is inclined downwards, the right end of the top of the guide plate 22 is flush with the top of the supporting plate 10, the guide plate 22 can prevent a circuit board to be tested from colliding with the left end of the supporting plate 10 in the moving process, and the circuit board to be tested is prevented from being damaged; still include shield 23, shield 23 is installed the inside of test port, shield 23 rotates with the inside of test port and is connected, and after the test finishes, closes shield 23, can carry out dustproof protection to testing arrangement, accuracy when guaranteeing the test next time.

In summary, the working principle and working process of the function testing jig are that when the function testing jig is used, a circuit board to be tested is fixed between the clamping plate 6 and the fixing plate 4, then the telescopic rod 14 is used for pushing the right side of the pressing plate 12 downwards, the pressing plate 12 and the supporting shaft 15 are rotated, the left end of the pressing plate 12 is lifted, the pressing block 16 is separated from the testing golden finger 18, then the sliding block 3 drives the circuit board to be tested to move rightwards through sliding, the golden finger of the circuit board to be tested moves to be right above the testing golden finger 18, then the telescopic rod 14 is retracted, the pressing block 16 enables the golden finger to be tested to be fully contacted with the testing golden finger 18 through the elasticity of the spring 13, and therefore the golden finger to be tested is tested, and the testing result is displayed through the indicating lamp 19.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a functional test tool which characterized in that: the device comprises a test box (1), a clamp and a test device, wherein a test port is arranged at the top of the test box (1), sliding guide rails (2) are arranged on the left front side and the left rear side inside the test box (1), sliding blocks (3) are connected to the two sliding guide rails (2) in a sliding manner, the clamp comprises a fixed plate (4), two fixed blocks (5) and a clamping plate (6), the front side and the rear side of the fixed plate (4) are respectively connected with the two sliding blocks (3), the two fixed blocks (5) are respectively fixed on the left front side and the left rear side of the top of the fixed plate (4), a clamping rotating shaft (7) is rotatably connected between the two fixed blocks (5), a rotating plate (8) is arranged on the clamping rotating shaft (7), a torsion spring (9) is arranged in a gap between the rotating plate (8) and the two fixed blocks (5), and the left side of the clamping plate (6) is connected with the right side of the rotating plate (8), the right side of splint (6) is the arc and upwards perk, testing arrangement includes backup pad (10), two bracing pieces (11), clamp plate (12), spring (13) and telescopic link (14), backup pad (10) are fixed on the inside bottom right side of test box (1), and two bracing pieces (11) are fixed respectively in the front side and the rear side at backup pad (10) top, rotate between two bracing pieces (11) and are connected with back shaft (15), clamp plate (12) suit is on back shaft (15), and the bottom left side of clamp plate (12) is provided with briquetting (16), and test circuit board (17) is installed at the top of backup pad (10), be provided with a plurality of test golden fingers (18) on test circuit board (17), the bottom and a plurality of test golden fingers (18) of briquetting (16) contact, the right-hand member at clamp plate (12) is fixed on the top of spring (13), the bottom end of the spring (13) is fixed on the supporting plate (10), the top end of the telescopic rod (14) is installed on the right side of the top inside the testing box (1), and the bottom end of the telescopic rod (14) is in contact with the top of the supporting plate (10).

2. The functional test fixture of claim 1, wherein: still include pilot lamp (19), pilot lamp (19) are installed the right side of test box (1), pilot lamp (19) with test golden finger (18) electric connection.

3. The functional test fixture of claim 1, wherein: the test device is characterized by further comprising two positioning plates (20), wherein the two positioning plates (20) are respectively arranged on the front side and the rear side of the top of the supporting plate (10), and the two positioning plates (20) are located on the right side of the test golden finger (18).

4. The functional test fixture of claim 1, wherein: still include backing plate (21), backing plate (21) are fixed the bottom of splint (6), and the material of backing plate (21) is the rubber material.

5. The functional test fixture of claim 1, wherein: still include deflector (22), deflector (22) are installed the left end of backup pad (10), and deflector (22) are arc and left end downward sloping, and the right-hand member at deflector (22) top is parallel and level with the top of backup pad (10).

6. The functional test fixture of claim 5, wherein: still include shield (23), shield (23) are installed the inside of test port, shield (23) are connected with the inside rotation of test port.