CN213903723U

CN213903723U - Multifunctional high-precision high-efficiency circuit board test fixture

Info

Publication number: CN213903723U
Application number: CN202022862102.8U
Authority: CN
Inventors: 陈伟; 赵荣荣
Original assignee: Suzhou Simide Electronic Technology Co ltd
Current assignee: Suzhou Simide Electronic Technology Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-08-06
Anticipated expiration: 2030-12-02

Abstract

The utility model discloses a high-efficient circuit board test fixture of multi-functional high accuracy, comprises an operation bench, be provided with the inner chamber on the operation panel, the inner wall both sides of inner chamber are all fixed the embedding have first bearing, interference fit has first supporting shaft in the first bearing, be fixed with the motor on the outer wall of operation panel, the pivot of motor passes through the shaft coupling with first supporting shaft and fixes, it is protruding that positive and negative direction and isometric screw thread are provided with on the first supporting shaft, the screw thread is provided with the thread bush on the thread arch, be provided with spacing hole on the inner wall of inner chamber, be fixed with the gag lever post of hugging closely with spacing hole slip on the thread bush. Through the removal of two holders, can realize the left and right sides location centre gripping to the circuit board body, through the centre gripping of rubber piece and holder position about can being to the circuit board body, rotate through the second back shaft, can realize the turn-over to the circuit board body, the cooperation bolt inserts the slot, realizes that the turn-over is fixed, and is simple and convenient, avoids the scratch circuit board body.

Description

Multifunctional high-precision high-efficiency circuit board test fixture

Technical Field

The utility model belongs to the technical field of the circuit board test, specifically be a multi-functional high-accuracy high-efficient circuit board test fixture.

Background

The circuit board is a relatively common electronic appliance, has small volume and strong function, is widely applied to various electronic devices, and needs to be subjected to one-by-one electrical test after the batch production of the circuit board is finished.

A common test for circuit boards is the needle bed method, which uses probes with springs to make each probe have a pressure of 100 to 200 grams to ensure that each probe makes good contact with each test point, and the arrangement of the probes is called needle bed.

The existing needle bed tester can only detect a single face, needs to be turned over manually during the test of a double-sided board, is easy to scratch a circuit during manual operation, and consumes time and reduces the working efficiency due to frequent turning over and re-fixing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-efficient circuit board test fixture of multi-functional high accuracy to solve the problem that manual turn-over easily damaged circuit board and waste time.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high-efficient circuit board test fixture of multi-functional high accuracy, includes the operation panel, be provided with the inner chamber on the operation panel, the inner wall both sides of inner chamber are all fixed the embedding and are had first bearing, interference fit has first supporting shaft in the first bearing, be fixed with the motor on the outer wall of operation panel, the pivot and the first supporting shaft of motor pass through the shaft coupling fixed, it is protruding that positive and negative direction and isometric screw thread are provided with on the first supporting shaft, the screw thread is provided with the thread bush in the screw thread arch, be provided with spacing hole on the inner wall of inner chamber, be fixed with the gag lever post of hugging closely with spacing hole slip on the thread bush, be provided with the circuit board body on the gag lever post.

Preferably, a second bearing is fixed on the limiting rod, a second supporting shaft is arranged in the second bearing in an interference fit mode, the motor is 51K90GU-AF, a forward and reverse rotation switch is installed on a shell of the motor through a lead, the forward and reverse rotation switch is HY2-8, and the motor is connected with an indoor 220V power strip in a plugging mode through a lead plug and electrified.

Preferably, the one end of second back shaft is fixed with the holder, is provided with the buckle on the holder, is fixed with the block rubber on the buckle, centre gripping circuit board body between block rubber and the holder for the centre gripping of position is fixed about the circuit board body can realize through the effect that resets of first spring.

Preferably, be provided with built-in groove on the holder, built-in inslot is fixed with the anticreep board, is fixed with the connecting rod on the anticreep board, connecting rod and buckle fixed connection avoid the buckle when tensile, the condition of slippage appears.

Preferably, the inner wall opening position of the built-in groove is fixed with an anti-drop ring, the connecting rod and the anti-drop ring slide and penetrate through, and the anti-drop ring and the anti-drop plate are fixed through a first spring wound on the connecting rod, so that the reset clamping stability of the pinch plate is ensured.

Preferably, the other end of the second supporting shaft is fixed with a disc, and the disc is provided with two slots which are symmetrically distributed, so that the turnover positioning of the circuit board body can be realized.

Preferably, a lantern ring is fixed on the limiting rod, a bolt inserted into the slot in the lantern ring is sleeved in the lantern ring in a sliding mode, and the bolt and the lantern ring are fixedly connected through a second spring wound on the bolt, so that the circuit board body can be fixed after being turned over.

Compared with the prior art, the beneficial effects of the utility model are that: through the removal of two holders, can realize the left and right sides location centre gripping to the circuit board body, through the centre gripping of rubber piece and holder position about can being to the circuit board body, rotate through the second back shaft, can realize the turn-over to the circuit board body, the cooperation bolt inserts the slot, realizes that the turn-over is fixed, and is simple and convenient, avoids the scratch circuit board body.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partially enlarged view of the holder of the present invention;

fig. 3 is a schematic diagram of slot distribution according to the present invention.

In the figure: 1. an operation table; 11. an inner cavity; 12. a first bearing; 13. a first support shaft; 14. a motor; 15. a threaded boss; 16. a threaded sleeve; 17. a limiting hole; 18. a limiting rod; 19. a circuit board body; 2. a second bearing; 21. a second support shaft; 22. a holder; 23. buckling the plate; 24. a rubber block; 3. a built-in groove; 31. an anti-drop plate; 32. a connecting rod; 33. the anti-drop ring; 34. a first spring; 4. a disc; 41. a slot; 42. a collar; 43. a bolt; 44. a second spring.

Detailed Description

Please refer to fig. 1, a multifunctional high-precision high-efficiency circuit board testing jig comprises an operating table 1, an inner cavity 11 is arranged on the operating table 1, first bearings 12 are fixedly embedded in two sides of the inner wall of the inner cavity 11, first supporting shafts 13 are arranged in the first bearings 12 in an interference fit manner, a motor 14 is fixed on the outer wall of the operating table 1, a rotating shaft of the motor 14 is fixed with the first supporting shafts 13 through a coupler, threaded protrusions 15 which are forward and backward and have equal length are arranged on the first supporting shafts 13, threaded sleeves 16 are arranged on the threaded protrusions 15, limiting holes 17 are arranged on the inner wall of the inner cavity 11, limiting rods 18 which are in sliding close contact with the limiting holes 17 are fixed on the threaded sleeves 16, and circuit board bodies 19 are arranged on the limiting rods 18.

Referring to fig. 1, a second bearing 2 is fixed on the limit rod 18, a second support shaft 21 is in interference fit in the second bearing 2, the motor 14 is 51K90GU-AF, a forward and reverse rotation switch is mounted on a shell of the motor 14 through a lead, the forward and reverse rotation switch is HY2-8, and the motor 14 is connected with an indoor 220V power strip in a plugging mode through a lead plug and is electrified.

Referring to fig. 1 and 2, a clamping seat 22 is fixed at one end of the second supporting shaft 21, a buckle plate 23 is arranged on the clamping seat 22, a rubber block 24 is fixed on the buckle plate 23, the circuit board body 19 is clamped between the rubber block 24 and the clamping seat 22, and the circuit board body 19 can be clamped and fixed at the upper and lower positions by the reset effect of the first spring 34.

Referring to fig. 1 and 2, the holder 22 is provided with an inner groove 3, an anti-slip plate 31 is fixed in the inner groove 3, a connecting rod 32 is fixed on the anti-slip plate 31, and the connecting rod 32 is fixedly connected with the buckle plate 23 to prevent the buckle plate 23 from slipping when being stretched.

Referring to fig. 1 and 2, a release-preventing ring 33 is fixed at an opening position of an inner wall of the built-in groove 3, the connecting rod 32 is slidably penetrated through the release-preventing ring 33, and the release-preventing ring 33 and the release-preventing plate 31 are fixed by a first spring 34 wound on the connecting rod 32, so that the stable reset and clamping of the buckle plate 23 are ensured.

Referring to fig. 2 and 3, a disc 4 is fixed at the other end of the second support shaft 21, and two slots 41 are symmetrically arranged on the disc 4, so that the circuit board body 19 can be turned over and positioned.

Referring to fig. 2 and 3, a collar 42 is fixed on the limiting rod 18, a bolt 43 inserted into the slot 41 is slidably sleeved in the collar 42, and the bolt 43 and the collar 42 are fixedly connected through a second spring 44 wound on the bolt 43, so as to facilitate fixing the circuit board body 19 after being turned over.

The working principle of the scheme is as follows: when two holders 22 need to be moved, the power of motor 14 is switched on, motor 14 is started through a forward and reverse rotation switch, motor 14 drives first supporting shaft 13 to rotate forward or reversely, thread bulge 15 drives thread sleeve 16 to move, and limit rod 18 slides in limit hole 17 in a matching mode, so that two holders 22 can move horizontally and move towards or away from each other at opposite directions, and clamping is adjusted according to the length of circuit board body 19.

The buckle plate 23 is pulled upwards, the circuit board body 19 can be placed between the rubber block 24 and the clamping seat 22 through the stretching effect of the first spring 34, and the circuit board body 19 can be clamped and fixed through the resetting effect of the first spring 34.

When the circuit board body 19 needs to be turned over, the plug 43 is pulled downwards, so that the plug 43 is separated from the current slot 41, the circuit board body is turned over for 180 degrees, and the plug 43 is inserted into the slot 41 at the new position through the resetting effect of the second spring 44, so that the turning-over fixation is completed.

Claims

1. The utility model provides a high-efficient circuit board test fixture of multi-functional high accuracy, includes operation panel (1), its characterized in that: be provided with inner chamber (11) on operation panel (1), the inner wall both sides of inner chamber (11) are all fixed to be embedded in and have first bearing (12), interference fit has first supporting shaft (13) in first bearing (12), be fixed with motor (14) on the outer wall of operation panel (1), the pivot and first supporting shaft (13) of motor (14) are fixed through the shaft coupling, be provided with positive and negative direction and isometric screw thread arch (15) on first supporting shaft (13), the screw thread is provided with thread bush (16) on thread arch (15), be provided with spacing hole (17) on the inner wall of inner chamber (11), be fixed with gag lever post (18) of hugging closely with spacing hole (17) slip on thread bush (16), be provided with circuit board body (19) on gag lever post (18).

2. The multifunctional high-precision high-efficiency circuit board testing jig of claim 1, characterized in that: and a second bearing (2) is fixed on the limiting rod (18), and a second support shaft (21) is arranged in the second bearing (2) in an interference fit manner.

3. The multifunctional high-precision high-efficiency circuit board testing jig of claim 2, characterized in that: one end of the second supporting shaft (21) is fixed with a clamping seat (22), a buckling plate (23) is arranged on the clamping seat (22), a rubber block (24) is fixed on the buckling plate (23), and a circuit board body (19) is clamped between the rubber block (24) and the clamping seat (22).

4. The multifunctional high-precision high-efficiency circuit board testing jig of claim 3, characterized in that: the clamp seat (22) is provided with an internal groove (3), an anti-falling plate (31) is fixed in the internal groove (3), a connecting rod (32) is fixed on the anti-falling plate (31), and the connecting rod (32) is fixedly connected with the buckle plate (23).

5. The multifunctional high-precision high-efficiency circuit board testing jig of claim 4, characterized in that: an anti-drop ring (33) is fixed at the opening position of the inner wall of the built-in groove (3), the connecting rod (32) is penetrated through the anti-drop ring (33) in a sliding manner, and the anti-drop ring (33) is fixed with the anti-drop plate (31) through a first spring (34) wound on the connecting rod (32).

6. The multifunctional high-precision high-efficiency circuit board testing jig of claim 2, characterized in that: the other end of the second supporting shaft (21) is fixed with a disc (4), and two slots (41) which are symmetrically distributed are formed in the disc (4).

7. The multifunctional high-precision high-efficiency circuit board testing jig of claim 6, characterized in that: a sleeve ring (42) is fixed on the limiting rod (18), a bolt (43) inserted into the slot (41) is sleeved in the sleeve ring (42), and the bolt (43) is fixedly connected with the sleeve ring (42) through a second spring (44) wound on the bolt (43).