CN214622923U

CN214622923U - PCB clamping device for semiconductor chip detection

Info

Publication number: CN214622923U
Application number: CN202120282231.1U
Authority: CN
Inventors: 王赫龙
Original assignee: Biaojing Precision Technology Suzhou Co ltd
Current assignee: Biaojing Precision Technology Suzhou Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-11-05
Anticipated expiration: 2031-02-01

Abstract

The utility model relates to a PCB clamping device for semiconductor chip detection, which comprises a supporting table, a pneumatic rod, a lifting seat and a frame, wherein the pneumatic rod is arranged at the top of the supporting table, and the telescopic end of the pneumatic rod penetrates through the top end of the supporting table and is provided with the lifting seat; the PCB board is placed in table surface's protruding position, it is rotatory to drive the first threaded rod in the spout through the second motor, when first threaded rod clockwise turning, two slides are close to first threaded rod middle part simultaneously, when first threaded rod counter-clockwise turning, first threaded rod middle part is kept away from simultaneously to two slides, third motor work drives the second threaded rod rotatory simultaneously, when second threaded rod clockwise turning, two splint are close to second threaded rod middle part simultaneously, when second threaded rod counter-clockwise turning, second threaded rod middle part is kept away from simultaneously to two splint, simultaneously atmospheric pressure pole work drives lift seat and frame and moves down, and then realize the quick centre gripping to the PCB board of different specifications through splint.

Description

PCB clamping device for semiconductor chip detection

Technical Field

The utility model relates to a semiconductor chip detects and detects technical field, especially relates to a semiconductor chip detects and holds device with PCB board.

Background

The PCB is an important component of the semiconductor chip, when the semiconductor chip is detected, the PCB needs to be detected, and the PCB is clamped and fixed through the clamping device.

Different PCB sizes and specifications are different, and when the PCB needs to be clamped, the conventional clamping device cannot be quickly and conveniently adjusted, so that the working efficiency is low in the actual use process; meanwhile, in the clamping process, once a fault occurs, the clamping device loses power, and the clamped PCB is easy to fall off.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem to provide a semiconductor chip detects and uses PCB board clamping device, has solved different PCB board sizes and different specifications, when needing to carry out the centre gripping to the PCB board, current clamping device can't be fast convenient make the adjustment, therefore work efficiency is low in the in-service use; meanwhile, in the clamping process, once a fault occurs, the clamping device loses power, and the clamped PCB is easy to fall off.

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

a PCB clamping device for detecting a semiconductor chip comprises a supporting table, a pneumatic rod, a lifting seat and a frame, wherein the pneumatic rod is installed at the top of the supporting table, the telescopic end of the pneumatic rod penetrates through the top end of the supporting table to be installed with the lifting seat, and the frame is rotatably installed on one side of the lifting seat;

the bottom parts of two opposite sides of the frame are provided with sliding grooves, first threaded rods are rotatably arranged in the sliding grooves, two ends of each first threaded rod are respectively connected with two ends of the sliding seat in a sliding manner, second threaded rods are rotatably arranged in the sliding seats, and clamping plates are slidably arranged at two ends of each second threaded rod;

the improved structure of the hydraulic cylinder is characterized in that a U-shaped frame is mounted in the middle of the other two opposite sides of the frame, first cylinders are vertically mounted on the two sides of the frame, the first springs are mounted inside the first cylinders, first pistons are mounted at the bottoms of the first springs, the bottom sides of the first pistons are connected with the top ends of first movable rods, the bottom ends of the first movable rods are located below the first cylinders, a bottom plate is mounted at the bottom ends of the first movable rods, second cylinders penetrate through the outer ends of the U-shaped frame and are horizontally mounted, second springs are mounted inside the second cylinders and are connected with second pistons, the second pistons are connected with one ends of second movable rods, L-shaped baffles are mounted at the other ends of the second movable rods and located on the outer sides of the second cylinders, and the L-shaped baffles are located on the bottom sides of the supporting tables.

Preferably, a first motor is installed in the middle of the other side of the lifting seat, and the output end of the first motor penetrates through the lifting seat and is connected with the frame.

Preferably, the second motor is all installed to frame one end both sides, second motor output and first threaded rod are connected, first threaded rod both ends screw thread opposite direction, the slide both ends all are provided with first slider, and the first slider in both ends respectively with first threaded rod both ends threaded connection.

Preferably, the third motor is installed to the slide tip, third motor output and second threaded rod end connection, second threaded rod both ends screw thread opposite direction, splint respectively with second threaded rod both ends threaded connection, and the splint outside contacts with the slide inside wall.

Preferably, the top end of the first cylinder on the same side is connected with the end, close to the L-shaped baffle, of the second cylinder on the same side through a connecting pipe in a conduction mode.

Preferably, a rubber pad is arranged on the inner side of the clamping plate.

The utility model has the advantages that: the PCB is placed at the convex part of the working table, the first threaded rod in the sliding groove is driven to rotate through the second motor, when the first threaded rod rotates clockwise, the two sliding seats are close to the middle part of the first threaded rod at the same time, when the first threaded rod rotates anticlockwise, the two sliding seats are far away from the middle part of the first threaded rod at the same time, the third motor works to drive the second threaded rod to rotate, when the second threaded rod rotates clockwise, the two clamping plates are close to the middle part of the second threaded rod at the same time, when the second threaded rod rotates anticlockwise, the two clamping plates are far away from the middle part of the second threaded rod at the same time, and simultaneously, the air pressure rod works to drive the lifting seat and the frame to move downwards, so that the PCB with different specifications can be clamped quickly through the clamping plates;

before the frame moves downwards, the first spring and the second spring are in a normal state, when the frame moves downwards, the bottom plate is in contact with a non-protruding part of the working table top at the moment, the first movable rod and the first piston are driven to move upwards to compress the first spring, air in the first cylinder enters the second cylinder at the moment, the second piston is driven to compress the second spring, the second movable rod is accommodated in the second cylinder at the same time until the bottom side of the sliding seat is flush with the top side of the protruding part of the working table top, the L-shaped baffle connected with the second movable rod moves into the U-shaped frame at the moment, the frame moves upwards after the PCB is clamped, the first spring and the second spring restore to the original state, air in the second cylinder enters the first cylinder again, the L-shaped baffle moves below the PCB at the moment, the bottom of the PCB plays a role of supporting, and the PCB is prevented from falling off in the clamping process.

Drawings

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

FIG. 2 is an overall side view of the present invention;

FIG. 3 is a schematic view of the overall structure of the other side of the present invention;

fig. 4 is a sectional view of the second cylinder of the present invention.

Illustration of the drawings:

1. a support table; 2. a pneumatic rod; 3. a lifting seat; 4. a first motor; 5. a frame; 6. a second motor; 7. a chute; 8. a first threaded rod; 9. a slide base; 10. a third motor; 11. a second threaded rod; 12. a splint; 13. a first cylinder; 14. a first spring; 15. a first piston; 16. a first movable bar; 17. a base plate; 18. a U-shaped frame; 19. a second cylinder; 20. a second spring; 21. a second piston; 22. a second movable bar; 23. an L-shaped baffle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Specific examples are given below.

Referring to fig. 1 to 4, a PCB clamping device for semiconductor chip detection comprises a supporting table 1, a pneumatic rod 2, a lifting seat 3 and a frame 5, wherein the pneumatic rod 2 is mounted at the top of the supporting table 1, the telescopic end of the pneumatic rod 2 penetrates through the top end of the supporting table 1 to be mounted with the lifting seat 3, and one side of the lifting seat 3 is rotatably mounted with the frame 5;

the bottom of two opposite sides of the frame 5 is provided with a sliding chute 7, a first threaded rod 8 is rotatably arranged in the sliding chute 7, two ends of the first threaded rod 8 are respectively connected with two ends of a sliding seat 9 in a sliding manner, a second threaded rod 11 is rotatably arranged in the sliding seat 9, two ends of the second threaded rod 11 are both slidably provided with clamping plates 12, and the inner sides of the clamping plates 12 are provided with rubber pads;

the middle of the other two opposite sides of the frame 5 is provided with a U-shaped frame 18, the other two opposite sides of the frame 5 are vertically provided with first cylinders 13 positioned on two sides of the U-shaped frame 18, first springs 14 are arranged inside the first cylinders 13, first pistons 15 are arranged at the bottom ends of the first springs 14, the bottom ends of the first pistons 15 are connected with the top ends of first movable rods 16, the bottom ends of the first movable rods 16 are positioned below the first cylinders 13 and provided with a bottom plate 17, the outer ends of the U-shaped frame 18 are horizontally provided with second cylinders 19 in a penetrating manner, second springs 20 are arranged inside the second cylinders 19, the second springs 20 are connected with second pistons 21, the second pistons 21 are connected with one ends of second movable rods 22, the other ends of the second movable rods 22 are positioned outside the second cylinders 19 and provided with L-shaped baffles 23, and the L-shaped baffles 23 are positioned on the bottom sides of the supporting tables 1.

As an embodiment of the utility model, 3 opposite side mid-mounting of lift seat have first motor 4, and the 4 output of first motor runs through lift seat 3 and is connected with frame 5, and it is rotatory to drive frame 5 through first motor 4.

As an embodiment of the utility model, second motor 6 is all installed to 5 one end both sides of frame, 6 output ends of second motor are connected with first threaded

rod

8, 8 both ends screw thread opposite direction of first threaded rod, 9 both ends of slide all are provided with first slider, and the first slider in both ends respectively with 8 both ends screw thread connection of first threaded rod, second motor 6 drives first threaded rod 8 rotations in spout 7, when 8 clockwise turning of first threaded rod, two slides 9 are close to 8 middle parts of first threaded rod simultaneously, when 8 anticlockwise rotations of first threaded rod, 8 middle parts of first threaded rod are kept away from simultaneously to two slides 9.

As an embodiment of the utility model, third motor 10 is installed to 9 tip of slide, the output of

third motor

10 and 11 end connection of second threaded rod, 11 both ends screw thread opposite direction of second threaded rod, splint 12 respectively with 11 both ends screw thread connection of second threaded rod, and the splint 12 outside and the contact of the 9 inside walls of slide, third motor 10 work drives second threaded rod 11 rotatory, when 11 clockwise turning of second threaded rod, two splint 12 are close to 11 middle parts of second threaded rod simultaneously, when 11 anticlockwise rotations of second threaded rod, 11 middle parts of second threaded rod are kept away from simultaneously to two splint 12.

As an embodiment of the utility model, the first barrel 13 top of homonymy all is close to L type baffle 23 end with homonymy second barrel 19 and passes through the connecting pipe on-connection, guarantees that first barrel 13 is the same with the 19 inside pressures of second barrel, the inside air of being convenient for removes.

The working principle is as follows: placing a PCB (printed Circuit Board) at a convex supporting part of a working table, driving a lifting seat 3 and a frame 5 to move downwards through a working of a pneumatic rod 2, driving a first threaded rod 8 in a chute 7 to rotate through a second motor 6, adjusting the distance between two sliding seats 9, driving a second threaded rod 11 to rotate through a working of a third motor 10, adjusting the distance between clamping plates 12, and before the frame 5 moves downwards, driving a first spring 14 and a second spring 20 to be in a normal state, when the frame 5 moves downwards, driving a first movable rod 16 and a first piston 15 to move upwards through a bottom plate 17 in contact with a non-convex part of the working table to compress a first spring 14, driving a second piston 21 to compress a second spring 20 through air in a first cylinder 13, and simultaneously storing a second movable rod 22 in a second cylinder 19 until the bottom side of the sliding seat 9 is flush with the top side of the convex part of the working table, after the PCB is clamped through the clamping plate 12, the frame 5 moves upwards, the first spring 14 and the second spring 20 restore to the original state at the moment, air in the second barrel 19 enters the first barrel 13 again, the L-shaped baffle 23 moves to the position below the PCB at the moment, the bottom of the PCB is supported, meanwhile, the frame 5 is driven to rotate through the first motor 4, multi-angle detection of the PCB is facilitated, the frame 5 moves downwards after detection is completed, the L-shaped baffle 23 automatically moves to the U-shaped frame 18 at the moment, and meanwhile, the clamping plate 12 moves to put down the PCB.

The PCB is placed at the raised part of the working table, the first threaded rod 8 in the chute 7 is driven to rotate by the second motor 6, when the first threaded rod 8 rotates clockwise, the two slide seats 9 simultaneously approach to the middle part of the first threaded rod 8, when the first threaded rod 8 rotates anticlockwise, the two slide seats 9 simultaneously keep away from the middle part of the first threaded rod 8, simultaneously the third motor 10 works to drive the second threaded rod 11 to rotate, when the second threaded rod 11 rotates clockwise, the two clamping plates 12 simultaneously approach to the middle part of the second threaded rod 11, when the second threaded rod 11 rotates anticlockwise, the two clamping plates 12 simultaneously keep away from the middle part of the second threaded rod 11, simultaneously the air pressure rod 2 works to drive the lifting seat 3 and the frame 5 to move downwards, and then the quick clamping of the PCB plates with different specifications is realized by the clamping plates 12;

before the frame 5 moves downwards, the first spring 14 and the second spring 20 are in a normal state, when the frame 5 moves downwards, the bottom plate 17 contacts with a non-convex part of the working table to drive the first movable rod 16 and the first piston 15 to move upwards to compress the first spring 14, air in the first cylinder 13 enters the second cylinder 19 to drive the second piston 21 to compress the second spring 20, meanwhile, the second movable rod 22 is accommodated in the second cylinder 19 until the bottom side of the sliding seat 9 is flush with the top side of the convex part of the working table, at this time, the L-shaped baffle plate 23 connected with the second movable rod 22 moves into the U-shaped frame 18, the frame 5 moves upwards after the PCB clamping is completed, at this time, the first spring 14 and the second spring 20 restore, air in the second cylinder 19 enters the first cylinder 13 again, at this time, the L-shaped baffle plate 23 moves to the position below the PCB, and plays a role of supporting the bottom of the PCB, the PCB is prevented from falling off in the clamping process.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A PCB clamping device for semiconductor chip detection is characterized by comprising a supporting table (1), an air pressure rod (2), a lifting seat (3) and a frame (5), wherein the air pressure rod (2) is installed at the top of the supporting table (1), the telescopic end of the air pressure rod (2) penetrates through the top end of the supporting table (1) and is provided with the lifting seat (3), and the frame (5) is rotatably installed on one side of the lifting seat (3);

the bottom parts of two opposite sides of the frame (5) are provided with sliding grooves (7), a first threaded rod (8) is rotatably arranged in each sliding groove (7), two ends of each first threaded rod (8) are respectively connected with two ends of a sliding seat (9) in a sliding manner, a second threaded rod (11) is rotatably arranged in each sliding seat (9), and clamping plates (12) are respectively slidably arranged at two ends of each second threaded rod (11);

the middle parts of the other two opposite sides of the frame (5) are provided with U-shaped frames (18), the other two opposite sides of the frame (5) are positioned on two sides of the U-shaped frames (18) and are vertically provided with first cylinder bodies (13), first springs (14) are arranged inside the first cylinder bodies (13), first pistons (15) are arranged at the bottom ends of the first springs (14), the bottom sides of the first pistons (15) are connected with the top ends of first movable rods (16), the bottom ends of the first movable rods (16) are positioned below the first cylinder bodies (13) and are provided with bottom plates (17), the outer ends of the U-shaped frames (18) penetrate through and are horizontally provided with second cylinder bodies (19), second springs (20) are arranged inside the second cylinder bodies (19), the second springs (20) are connected with second pistons (21), the second pistons (21) are connected with one ends of second movable rods (22), the other ends of the second movable rods (22) are positioned outside the second cylinder bodies (19) and are provided with L-shaped baffles (23), and the L-shaped baffle (23) is positioned at the bottom side of the support platform (1).

2. The PCB clamping device for detecting the semiconductor chip as recited in claim 1, wherein a first motor (4) is installed in the middle of the other side of the lifting seat (3), and the output end of the first motor (4) penetrates through the lifting seat (3) to be connected with the frame (5).

3. The PCB clamping device for detecting the semiconductor chip as recited in claim 1, wherein a second motor (6) is installed on both sides of one end of the frame (5), and the output end of the second motor (6) is connected with the first threaded rod (8).

4. The PCB clamping device for detecting the semiconductor chip as recited in claim 3, wherein the thread directions of both ends of the first threaded rod (8) are opposite, both ends of the sliding base (9) are provided with first sliding blocks, and the first sliding blocks at both ends are respectively in threaded connection with both ends of the first threaded rod (8).

5. The PCB clamping device for detecting the semiconductor chip as recited in claim 1, wherein a third motor (10) is installed at the end of the sliding seat (9), and the output end of the third motor (10) is connected with the end of the second threaded rod (11).

6. The PCB clamping device for detecting the semiconductor chip as recited in claim 5, wherein the thread directions of both ends of the second threaded rod (11) are opposite, the clamping plates (12) are respectively in threaded connection with both ends of the second threaded rod (11), and the outer sides of the clamping plates (12) are in contact with the inner side wall of the sliding seat (9).

7. The PCB clamping device for detecting the semiconductor chip as recited in claim 1, wherein the top end of the first cylinder (13) at the same side is connected with the end of the second cylinder (19) at the same side, which is close to the L-shaped baffle (23), in a conduction manner through a connecting pipe.

8. The PCB clamping device for detecting the semiconductor chip as recited in claim 1, wherein a rubber pad is arranged at the inner side of the clamping plate (12).