CN211179921U

CN211179921U - PCB test fixture

Info

Publication number: CN211179921U
Application number: CN201921814958.9U
Authority: CN
Inventors: 陈燕
Original assignee: Wuhan Xinrenda Technology Co ltd
Current assignee: Wuhan Xinrenda Technology Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-08-04
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a PCB board test fixture, concretely relates to anchor clamps technical field, the on-line screen storage device comprises a base, the internal connection of base has the carriage, the inside of carriage is provided with adjusts fixture, the outside of carriage is provided with lift adjustment mechanism, lift adjustment mechanism includes two movable plates, the spout has been seted up to the inner wall of carriage both sides, the both ends fixed mounting of movable plate has the slider, slider sliding connection is in the inside of spout, two the equal fixedly connected with T-shaped plate in one side that the movable plate is close to each other. The utility model discloses an at the inside movable plate that sets up of carriage, under the spring action of spring, promote two movable plates and drive two grip blocks and carry out automatic centre gripping to the PCB board, utilize the sliding connection between draw-in groove board and the T shaped plate, can support the grip block board and take the movable plate to carry out back-and-forth movement and adjust, improved the convenience that the device used, increased the controllability of PCB board centre gripping.

Description

PCB test fixture

Technical Field

The utility model relates to an anchor clamps technical field, more specifically say, the utility model relates to a PCB board test fixture.

Background

The PCB, i.e. the printed circuit board, also called printed circuit board, is an important electronic component, is a support body for electronic components, is a carrier for electrical connection of electronic components, and is made by electronic printing, so it is called "printed" circuit board, in order to ensure that it can support work, after production, it is usually detected, at this moment, it needs to use a clamp to clamp and support the board.

However, the prior art has the following defects: after the PCB is clamped, the position of the PCB cannot be effectively adjusted, so that the device cannot be suitable for PCBs of other sizes to be used, and the device has great limitation.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a PCB board test fixture, through set up two movable plates that can remove about in the carriage is inside, under the spring action of spring, promote two movable plates and drive two grip blocks and carry out automatic centre gripping to the PCB board, utilize sliding connection between draw-in groove board and the T shaped plate, can support the grip block board and take the back-and-forth movement to adjust to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a PCB testing clamp comprises a base, wherein a supporting frame is connected inside the base, an adjusting clamping mechanism is arranged inside the supporting frame, and a lifting adjusting mechanism is arranged outside the supporting frame;

the lifting adjusting mechanism comprises two moving plates, sliding grooves are formed in the inner walls of two sides of the supporting frame, sliding blocks are fixedly mounted at two ends of the moving plates, the sliding blocks are connected inside the sliding grooves in a sliding mode, the two moving plates are connected with T-shaped plates fixedly on one sides, close to each other, of the moving plates, clamping groove plates are arranged on one sides, away from the moving plates, of the T-shaped plates, the clamping groove plates are connected with the T-shaped plates in a sliding mode, one side, away from the T-shaped plates, of each clamping groove plate is fixedly connected with a clamping plate, the clamping plate is far away from a bottom fixedly connected with lower bearing plate on one side of the clamping groove plates, the top, away from one.

In a preferred embodiment, a sleeve column is fixedly installed on the adjacent sides of the moving plate and the support frame, a spring is sleeved outside the sleeve column, and two ends of the spring are fixedly connected with the adjacent sides of the moving plate and the support frame respectively.

In a preferred embodiment, fastening screws are arranged at two ends of the top of the slot plate, and bottom ends of the fastening screws penetrate through the top of the slot plate and are in threaded connection with the slot plate.

In a preferred embodiment, a convex plate is fixedly installed at the top end of one side, close to the upper bearing plate, of the clamping plate, an adjusting bolt is connected to the inner thread of the convex plate, and the bottom end of the adjusting bolt penetrates through the convex plate and is rotatably connected with the top of the upper bearing plate.

In a preferred embodiment, rubber pads are fixedly connected to the bottom of the upper bearing plate and the top of the lower bearing plate.

In a preferred embodiment, the lifting adjusting mechanism comprises a threaded rod, a through groove is formed in the base, the supporting frame is connected to the inside of the through groove in a sliding mode, a supporting plate is fixedly connected to the top end of the outside of the supporting frame, the bottom end of the threaded rod penetrates through the supporting plate and is in threaded connection with the supporting plate, the bottom end of the threaded rod is connected with the top of the base in a rotating mode, and a knob is fixedly connected to the top of the threaded rod.

In a preferred embodiment, the number of the supporting plates and the threaded rods is two, and the two supporting plates are respectively arranged on the tops of two sides of the supporting frame.

In a preferred embodiment, the bottom of each of the two ends of the base is fixedly connected with a mounting plate, and the inside of each of the two ends of the mounting plate is provided with a mounting hole.

The utility model discloses a technological effect and advantage:

the utility model discloses an internally mounted carriage of base, and set up two movable plates that can move about in the carriage, after placing the PCB board on the lower carrier plate of the grip block bottom that the movable plate inboard is connected, under the spring action of spring, promote two movable plates and drive two grip blocks and inwards move, thereby carry out the automatic centre gripping to the PCB board, drive the upper carrier plate through adjusting bolt and descend, and the edge to the PCB board presss from both sides tightly fixes, thereby support the PCB board and detect, and utilize the inboard of movable plate to set up the T-shaped board, and connect the draw-in groove board on one side of grip block, utilize the sliding connection between draw-in groove board and the T-shaped board, can support the grip block to take the back-and-forth movement to adjust, also can be through adjusting the removal of movable plate and grip block, in order to adapt to the centre gripping of the PCB board of different sizes, compare with prior art, greatly improve the convenience of device use, the controllability of clamping the PCB is improved;

the utility model discloses a gliding carriage from top to bottom sets up at the base, and at the both sides fixed mounting backup pad at the carriage top, utilize the internally mounted threaded rod in the backup pad, the knob at rotation threaded rod top, it rotates to drive the threaded rod, and then utilize the threaded connection of threaded rod and backup pad, and the threaded rod bottom is connected with the rotation on base top, can drive the carriage and reciprocate, thereby carry out lift adjustment to the PCB board of centre gripping in the carriage, thereby adapt to the demand of different detection height, compare with prior art, carry the practicality that the reinforcing means used widely, the availability factor of device has been improved.

Drawings

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

Fig. 2 is a top view of the present invention.

Fig. 3 is a schematic view of the overall structure of the movable plate of the present invention.

Fig. 4 is an enlarged view of the structure of the portion a of fig. 1 according to the present invention.

Fig. 5 is an enlarged view of the structure of the part B of fig. 1 according to the present invention.

The reference signs are: the device comprises a base 1, a support frame 2, an adjusting clamping mechanism 3, a lifting adjusting mechanism 4, a sliding chute 5, a moving plate 6, a sliding block 7, a T-shaped plate 8, a clamping groove plate 9, a clamping plate 10, a lower bearing plate 11, an upper bearing plate 12, a sleeve column 13, a spring 14, a mounting plate 15, a mounting hole 16, a through groove 17, a fastening screw 18, a convex plate 19, an adjusting bolt 20, a support plate 21, a knob 22, a rubber pad 23 and a threaded rod 24.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, the utility model provides a PCB testing fixture, which comprises a base 1, wherein the inside of the base 1 is connected with a supporting frame 2, the inside of the supporting frame 2 is provided with an adjusting clamping mechanism 3, and the outside of the supporting frame 2 is provided with a lifting adjusting mechanism 4;

the lifting adjusting mechanism 4 comprises two moving plates 6, sliding grooves 5 are formed in the inner walls of two sides of the supporting frame 2, sliding blocks 7 are fixedly mounted at two ends of each moving plate 6, each sliding block 7 is connected inside the corresponding sliding groove 5 in a sliding mode, a T-shaped plate 8 is fixedly connected to one side, close to each other, of each moving plate 6, a clamping groove plate 9 is arranged on one side, away from the moving plates 6, of each T-shaped plate 8, each clamping groove plate 9 is connected with the corresponding T-shaped plate 8 in a sliding mode, a clamping plate 10 is fixedly connected to one side, away from the T-shaped plate 8, of each clamping plate 9, a lower bearing plate 11 is fixedly connected to the bottom, away from the clamping groove plate 9, of each clamping plate 10, an upper bearing plate 12 is arranged on the top, away from the clamping groove;

sleeve columns 13 are fixedly arranged on the same near sides of the moving plate 6 and the supporting frame 2, springs 14 are sleeved outside the sleeve columns 13, two ends of each spring 14 are fixedly connected with the near sides of the moving plate 6 and the supporting frame 2 respectively, and then the moving plate 6 is pushed to drive the clamping plate 10 to automatically clamp the PCB by utilizing the elasticity of the springs 14;

fastening screws 18 are arranged at two ends of the top of the clamping groove plate 9, the bottom ends of the fastening screws 18 penetrate through the top of the clamping groove plate 9 and are in threaded connection with the clamping groove plate 9, and then the fastening screws 18 can be rotated to move inwards and contact with the T-shaped plate 8, so that the clamping groove plate 9 and the T-shaped plate 8 are fixed in a moving mode;

a convex plate 19 is fixedly mounted at the top end of one side, close to the upper bearing plate 12, of the clamping plate 10, an adjusting bolt 20 is connected to the inner thread of the convex plate 19, the bottom end of the adjusting bolt 20 penetrates through the convex plate 19 and is rotatably connected with the top of the upper bearing plate 12, so that the upper bearing plate 12 is driven to descend by rotating the adjusting bolt 20 and utilizing the threaded connection between the adjusting bolt 20 and the convex plate 19, the lower bearing plate 11 is matched to clamp the edge of the PCB, and the PCB is prevented from loosening in the detection process;

the bottom of the upper bearing plate 12 and the top of the lower bearing plate 11 are both fixedly connected with rubber pads 23, so that when the edge of a PCB is clamped, the PCB can be protected;

the implementation mode is specifically as follows: the support frame 2 is arranged in the base 1, the sliding grooves 5 are formed in two sides in the support frame 2, the sliding blocks 7 at two ends of the moving plate 6 slide in the sliding grooves 5, so that the two moving plates 6 can move left and right in the support frame 2, when a PCB needs to be clamped, the two moving plates 6 are manually pulled apart, the PCB is placed on the lower bearing plate 11 at the bottom of the clamping plate 10 connected to the inner side of the moving plate 6, the two moving plates 6 are pushed to drive the two clamping plates 10 to move inwards under the action of the elastic force of the spring 14, so that the PCB is automatically clamped, the convex plate 19 is arranged at the top of the clamping plate 10, the adjusting bolt 20 is arranged in the convex plate 19, the adjusting bolt 20 is rotatably connected with the upper bearing plate 12, and the adjusting bolt 20 is in threaded connection with the convex plate 19, so that the upper bearing plate 12 can be driven to descend by rotating the adjusting bolt 20, the edge of the PCB is clamped and fixed, so that the PCB is supported for detection, the T-shaped plate 8 is arranged on the inner side of the moving plate 6, the clamping groove plate 9 is connected to one side of the clamping plate 10, the clamping groove plate 9 is in sliding connection with the T-shaped plate 8, the clamping plate 10 can be supported to drive the plate to move back and forth and adjust, the fastening screw 18 is arranged at the top of the clamping groove plate 9, the fastening screw 18 moves inwards by rotating the fastening screw 18 and contacts with the T-shaped plate 8, so that the clamping groove plate 9 and the T-shaped plate 8 are moved and fixed, meanwhile, the moving plate 6 and the clamping plate 10 can be adjusted to be suitable for clamping of PCBs of different sizes, and the problem that the PCB is inconvenient to adjust to adapt to a detection port after being clamped and positioned in the prior art is solved.

As shown in fig. 1, 2 and 5, the utility model provides a PCB testing fixture, the lifting adjusting mechanism 4 includes a threaded rod 24, the inside of the base 1 is provided with a through groove 17, the support frame 2 is slidably connected inside the through groove 17, the top of the outside of the support frame 2 is fixedly connected with a support plate 21, the bottom end of the threaded rod 24 penetrates through the support plate 21 and is in threaded connection with the support plate 21, the bottom end of the threaded rod 24 is rotatably connected with the top of the base 1, and the top of the threaded rod 24 is fixedly connected with a knob 22;

the number of the support plates 21 and the number of the threaded rods 24 are two, and the two support plates 21 are respectively arranged at the tops of the two sides of the support frame 2, so that the threaded rods 24 can be synchronously adjusted, and the support frame 2 can be lifted more stably;

the bottom parts of the two ends of the base 1 are fixedly connected with mounting plates 15, and mounting holes 16 are formed in the inner parts of the two ends of the mounting plates 15, so that the device is convenient to mount and connect with a detection table;

the implementation mode is specifically as follows: through seting up logical groove 17 through the inside at base 1, and then make carriage 2 can slide from top to bottom in the inside that leads to groove 17, the outside backup pad 21 that extends of both sides fixed mounting at carriage 2 top of rethread, and at the internally mounted threaded rod 24 of backup pad 21, after PCB board centre gripping installation is accomplished, through the knob 22 at rotation threaded rod 24 top, drive threaded rod 24 and rotate, and then utilize threaded rod 24 and backup pad 21's threaded connection, and threaded rod 24 bottom is connected with the rotation on base 1 top, can drive carriage 2 and reciprocate, thereby through the rotation of adjusting two threaded rod 24 simultaneously, make the PCB board of centre gripping go up and down in carriage 2 and the carriage, thereby adapt to different detection demands, the problem that can't go up and down the butt joint after the centre gripping of prior art medium plate has specifically been solved to this embodiment.

The utility model discloses the theory of operation:

referring to the attached drawings 1-4 of the specification, two movable plates 6 capable of moving left and right are arranged inside a supporting frame 2, under the action of the elastic force of a spring 14, the two movable plates 6 are pushed to drive two clamping plates 10 to automatically clamp a PCB, an adjusting bolt 20 drives an upper bearing plate 12 to descend and clamp and fix the edge of the PCB, a T-shaped plate 8 is arranged on the inner side of the movable plates 6, a clamping groove plate 9 is connected to one side of each clamping plate 10, and the clamping plates 10 can be supported to drive the plates to move back and forth through sliding connection between the clamping groove plates 9 and the T-shaped plates 8;

refer to description attached figure 1, 2 and 5, through setting up gliding carriage 2 from top to bottom at base 1, and at the both sides fixed mounting backup pad 21 at carriage 2 top, rotate the knob 22 at threaded rod 24 top, drive threaded rod 24 and rotate, and then utilize the threaded connection of threaded rod 24 and backup pad 21, and the rotation on threaded rod 24 bottom and base 1 top is connected, can drive carriage 2 and reciprocate, thereby carry out lift adjustment to the PCB board of centre gripping in carriage 2, thereby adapt to the demand of different detection height.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a PCB board test fixture, includes base (1), its characterized in that: a supporting frame (2) is connected inside the base (1), an adjusting and clamping mechanism (3) is arranged inside the supporting frame (2), and a lifting adjusting mechanism (4) is arranged outside the supporting frame (2);

the lifting adjusting mechanism (4) comprises two moving plates (6), sliding grooves (5) are formed in the inner walls of two sides of the supporting frame (2), sliding blocks (7) are fixedly installed at two ends of each moving plate (6), the sliding blocks (7) are connected inside the sliding grooves (5) in a sliding mode, T-shaped plates (8) are fixedly connected to one sides, close to each other, of the two moving plates (6), clamping groove plates (9) are arranged on one sides, far away from the moving plates (6), of the T-shaped plates (8), the clamping groove plates (9) are connected with the T-shaped plates (8) in a sliding mode, clamping plates (10) are fixedly connected to one sides, far away from one sides of the clamping groove plates (9), of the clamping plates (10) are fixedly connected with lower bearing plates (11), upper bearing plates (12) are arranged at the tops, far away from one sides of the clamping groove plates (9), of the clamping plates (10, the upper bearing plate (12) is connected with the clamping plate (10) in a sliding mode.

2. The PCB board test fixture of claim 1, wherein: the movable plate (6) and the supporting frame (2) are fixedly provided with sleeve columns (13) on the similar sides, springs (14) are sleeved outside the sleeve columns (13), and the two ends of each spring (14) are fixedly connected with the similar sides of the movable plate (6) and the supporting frame (2) respectively.

3. The PCB board test fixture of claim 1, wherein: fastening screws (18) are arranged at two ends of the top of the clamping groove plate (9), and the bottom ends of the fastening screws (18) penetrate through the top of the clamping groove plate (9) and are in threaded connection with the clamping groove plate (9).

4. The PCB board test fixture of claim 1, wherein: the clamping plate (10) is close to the top fixed mounting who goes up carrier plate (12) one side has flange (19), the inside threaded connection of flange (19) has adjusting bolt (20), flange (19) are run through to the bottom of adjusting bolt (20) to rotate with the top of last carrier plate (12) and be connected.

5. The PCB board test fixture of claim 1, wherein: the bottom of the upper bearing plate (12) and the top of the lower bearing plate (11) are fixedly connected with rubber pads (23).

6. The PCB board test fixture of claim 1, wherein: lifting adjusting mechanism (4) include threaded rod (24), logical groove (17) have been seted up to the inside of base (1), carriage (2) sliding connection is in the inside that leads to groove (17), outside top fixedly connected with backup pad (21) of carriage (2), backup pad (21) is run through to the bottom of threaded rod (24) to with backup pad (21) threaded connection, the bottom of threaded rod (24) is rotated with the top of base (1) and is connected, the top fixedly connected with knob (22) of threaded rod (24).

7. The PCB board test fixture of claim 6, wherein: the quantity of backup pad (21) and threaded rod (24) all sets up to two, and two install respectively in the top of carriage (2) both sides backup pad (21).

8. The PCB board test fixture of claim 1, wherein: the base is characterized in that mounting plates (15) are fixedly connected to the bottoms of the two ends of the base (1), and mounting holes (16) are formed in the inner portions of the two ends of each mounting plate (15).