CN219675408U

CN219675408U - PCB vibration clamp

Info

Publication number: CN219675408U
Application number: CN202321023574.1U
Authority: CN
Inventors: 年四酬; 刘毅; 余淼
Original assignee: Anhui Tianguang Sensor Co ltd
Current assignee: Anhui Tianguang Sensor Co ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-09-12
Anticipated expiration: 2033-05-04

Abstract

The utility model relates to the technical field of PCB vibration tests, and particularly discloses a PCB vibration clamp, which comprises a guide rail; the sliding seat is connected to the guide rail in a sliding way, and a locking assembly is arranged on the sliding seat and used for locking the sliding seat; the first sliding block and the second sliding block are fixedly connected to the sliding seat, the second sliding block is connected with a push rod in a sliding mode, one end of the push rod is fixedly connected with a clamping block, the push rod is sleeved with a first spring, and two ends of the first spring are respectively propped against the clamping block and the second sliding block; clamping grooves corresponding to each other are formed in the clamping blocks and the first sliding blocks; according to the utility model, when the clamping groove is set as the V-shaped groove, the PCB can be conveniently and rapidly clamped by a worker, and the PCB clamping device can also be suitable for PCBs with different thickness specifications.

Description

PCB vibration clamp

Technical Field

The utility model relates to the technical field of PCB vibration tests, in particular to a PCB vibration clamp.

Background

The PCB board is an important electronic component, a support for electronic components, and a provider of electrical connections for electronic components, and is called a "printed" circuit board because it is fabricated by electronic printing. In the production process of the PCB, the vibration test is to check the capability of the PCB to withstand the vibration environment (with different vibration levels), and to check and analyze the defects of the product in the aspect of vibration resistance in design and manufacture so as to improve the design and manufacture, ensure the reliability of the product in use and transportation, and is an important part of the PCB test.

In the prior art, the PCB to be tested is placed on the clamp in the vibration test of the PCB, the PCB is clamped and fixed through the bolt on the adjusting clamp, and the vibration test is performed, so that the clamp can firmly clamp the PCB, the PCB can be tested only once, the clamping is inconvenient, the clamping force of the PCB is small, the PCB can fall off due to loosening of the bolt caused by continuous vibration in the vibration test, the clamping force of the PCB is large, and the PCB can be directly damaged, such as cracks and the like, so that the vibration test result of the PCB can be affected.

Disclosure of Invention

The utility model aims to provide a PCB vibration clamp, which solves the following technical problems:

how to avoid the problem that the PCB is inconvenient to clamp in the vibration test of the PCB and the PCB possibly falls off in the test.

The aim of the utility model can be achieved by the following technical scheme:

the PCB vibration clamp comprises a guide rail;

the sliding seat is connected to the guide rail in a sliding way, and a locking assembly is arranged on the sliding seat and used for locking the sliding seat;

the first sliding block and the second sliding block are fixedly connected to the sliding seat, the second sliding block is connected with a push rod in a sliding mode, one end of the push rod is fixedly connected with a clamping block, a first spring is sleeved on the push rod, and two ends of the first spring are respectively propped against the clamping block and the second sliding block;

clamping grooves corresponding to each other are formed in the clamping blocks and the first sliding blocks.

In one embodiment, the clamping groove is a V-groove.

In an embodiment, the clamping groove is a rectangular groove, a triangular groove with a triangular cross section is formed above the notch of the rectangular groove, and the triangular groove is communicated with the rectangular groove.

Further, the locking assembly comprises limiting pins, a plurality of limiting holes are formed in the side wall of the guide rail at equal intervals, and one end of each limiting pin penetrates through the sliding seat and is inserted into each limiting hole.

Further, a supporting frame is fixedly connected to the sliding seat, and the other end of the limiting pin penetrates through the supporting frame and is fixedly connected with a pull button;

the limiting pin is sleeved with a second spring, the limiting pin is fixedly connected with a baffle ring, and two ends of the second spring are respectively propped against the supporting frame and the baffle ring.

In an embodiment, a retaining ring is fixedly connected to one end, away from the clamping block, of the ejector rod, a limiting groove is formed in the ejector rod, and a limiting block corresponding to the limiting groove is arranged in the second sliding block.

Further, five clamping grooves are formed in the first sliding block, and five clamping blocks are arranged on the second sliding block.

The utility model has the beneficial effects that:

(1) According to the utility model, one end of the limiting pin is separated from and slides out of the limiting hole by pulling the pull button, then the sliding seat moves to a proper position on the guide rail, the pulling force of the pull button is released, and at the moment, the elastic force of the second spring can push the limiting pin to be reinserted into the limiting hole at a new position, so that the limiting locking of the sliding seat is completed, and the spacing between the first sliding block and the second sliding block can be adjusted to a proper size repeatedly.

(2) According to the utility model, one end of the PCB is placed into the clamping groove at the lowest point of the first sliding block, the clamping groove at the lowest point on the first sliding block is used as a rotating pivot to rotate the PCB, when the PCB rotates to be parallel to the guide rail to stop, then the pushing force on the five clamping blocks is released, so that the clamping block at the lowest point can move towards the first sliding block until the clamping groove on the clamping block is clamped into the other end of the PCB, and the clamping of the PCB is completed.

(3) According to the utility model, when the clamping groove is set as the V-shaped groove, the PCB can be conveniently and rapidly clamped by a worker, and the PCB clamping device can also be suitable for PCBs with different thickness specifications.

Drawings

The utility model is further described below with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of the overall structure of a PCB vibration fixture according to the present utility model;

fig. 2 is a schematic diagram of the overall structure of the PCB vibration clamp according to the present utility model;

FIG. 3 is an enlarged view of a partial structure of the area A in FIG. 2 according to the present utility model;

fig. 4 is a schematic diagram III of the overall structure of the PCB vibration clamp according to the present utility model;

fig. 5 is an enlarged view of a partial structure of the region B of fig. 4 according to the present utility model.

Reference numerals: 1. a guide rail; 11. a limiting hole; 2. a sliding seat; 21. a support frame; 3. a first slider; 4. a second slider; 5. a clamping block; 51. a push rod; 52. a first spring; 53. a retainer ring; 6. a clamping groove; 61. rectangular grooves; 62. triangular grooves; 7. a limiting pin; 71. pulling a button; 72. a second spring; 73. a baffle ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5 of the drawings, a PCB vibration jig in an embodiment of the present utility model includes a guide rail 1;

the sliding seat 2 is connected to the guide rail 1 in a sliding way, and a locking component is arranged on the sliding seat 2 and used for locking the sliding seat 2;

the first sliding block 3 and the second sliding block 4 are fixedly connected to the sliding seat 2, the second sliding block 4 is connected with a push rod 51 in a sliding manner, one end of the push rod 51 is fixedly connected with a clamping block 5, the push rod 51 is sleeved with a first spring 52, and two ends of the first spring 52 are respectively propped against the clamping block 5 and the second sliding block 4;

clamping grooves 6 corresponding to each other are formed in the clamping blocks 5 and the first sliding blocks 3.

As an embodiment of the present utility model, referring to fig. 1-2 of the drawings, the clamping groove 6 is a V-shaped groove, which is convenient for rapidly clamping and fixing the PCB board, and is suitable for PCB boards with different thicknesses.

As an embodiment of the present utility model, referring to fig. 4-5 of the drawings, the clamping groove 6 is a rectangular groove 61, a triangular groove 62 with a triangular cross section is formed above the notch of the rectangular groove 61, and the triangular groove 62 is communicated with the rectangular groove 61, so that the PCB board can be conveniently and rapidly clamped and fixed and fully limited.

Further, in order to limit the sliding seat 2 on the guide rail 1, the locking assembly comprises a limiting pin 7, a plurality of limiting holes 11 are formed in the side wall of the guide rail 1 at equal intervals, and one end of the limiting pin 7 penetrates through the sliding seat 2 and is inserted into the limiting holes 11.

Further, in order to facilitate the continuous pushing force applied to the limiting pin 7, the sliding seat 2 is fixedly connected with a supporting frame 21, and the other end of the limiting pin 7 penetrates through the supporting frame 21 and is fixedly connected with a pull button 71;

the limiting pin 7 is sleeved with a second spring 72, the limiting pin 7 is fixedly connected with a baffle ring 73, and two ends of the second spring 72 respectively prop against the supporting frame 21 and the baffle ring 73.

As an embodiment of the present utility model, referring to fig. 1 and fig. 4-5 of the drawings, a retaining ring 53 is fixedly connected to one end of a push rod 51 away from a clamping block 5, a limiting groove is formed on the push rod 51, and a limiting block corresponding to the limiting groove is formed in the second slider 4.

Further, in order to facilitate the test of a plurality of PCBs at the same time, five clamping grooves 6 are formed in the first slider 3, and five clamping blocks 5 are formed in the second slider 4.

The working principle of the utility model is as follows:

this vibration anchor clamps in practical process, can be according to the PCB board size specification of needs centre gripping, adjust the interval between first slider 3 and the second slider 4 to suitable size, specific process is, pulling pull button 71 makes spacer pin 7 overcome the elasticity of second spring 72, break away from the roll-off in spacing hole 11 with its one end, then remove sliding seat 2, remove it to the suitable position on the guide rail 1, loosen the pulling force to pull button 71, the elasticity of second spring 72 acts on baffle ring 73 and support frame 21 this moment, thereby promote spacer pin 7 reinsertion in the spacing hole 11 of new position, with the completion spacing locking to this sliding seat 2, so repeatedly can adjust the interval between first slider 3 and the second slider 4 to suitable size.

Then put one end of the PCB board to be tested into the lowest point clamping groove 6 of the first sliding block 3, the other hand pushes the five clamping blocks 5 on the second sliding block 4 to the direction of the second sliding block 4, the five clamping blocks 5 are not interfered with when the PCB rotates, then the PCB board is rotated by taking the clamping groove 6 at the lowest point on the first sliding block 3 as a rotation pivot, when the PCB board rotates to stop in the direction parallel to the guide rail 1, then the pushing force to the five clamping blocks 5 is released, the clamping block 5 at the lowest point can move to the direction of the first sliding block 3 under the elastic force of the first spring 52 until the clamping groove 6 on the clamping block 5 is clamped into the other end of the PCB board, thus the clamping of the PCB board is completed.

It should be noted that, because this anchor clamps test in-process is used for the PCB board up-and-down direction vibration test of centre gripping on it mostly, so when the double-layered groove 6 is the V-arrangement groove, can be convenient for the staff when using, quick centre gripping to the PCB board, and can also be applicable to the PCB board of different thickness specifications, this double-layered groove 6 can be used to the vibration test that vibration intensity is not high, because when vibration intensity is too high, the PCB board can overcome the elasticity of first spring 52 to the clamp block 5 that exerts on the V-arrangement groove lateral wall and to the second slider 4 direction removal, and then cause the PCB board to drop, when need carry out higher intensity vibration test to the PCB board, can adopt the double-layered groove 6 of rectangular channel 61 and triangle groove 62 combination to carry out the centre gripping to this PCB board, in this kind of double-layered groove 6 use, can also be convenient for the staff quick centre gripping to the PCB board, only be applicable to the PCB board of appointed thickness specification.

The foregoing describes one embodiment of the present utility model in detail, but the disclosure is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims

The PCB vibration clamp is characterized by comprising a guide rail (1);

the sliding seat (2) is connected to the guide rail (1) in a sliding way, and a locking component is arranged on the sliding seat (2) and used for locking the sliding seat (2);

the sliding seat comprises a first sliding block (3) and a second sliding block (4) which are fixedly connected to a sliding seat (2), wherein a push rod (51) is connected to the second sliding block (4) in a sliding manner, a clamping block (5) is fixedly connected to one end of the push rod (51), a first spring (52) is sleeved on the push rod (51), and two ends of the first spring (52) respectively prop against the clamping block (5) and the second sliding block (4);

clamping grooves (6) corresponding to each other are formed in the clamping blocks (5) and the first sliding blocks (3).
2. The PCB vibration clamp according to claim 1, characterized in that the clamping groove (6) is a V-groove.
3. The vibration clamp for the PCB according to claim 1, wherein the clamping groove (6) is a rectangular groove (61), a triangular groove (62) with a triangular cross section is formed above a notch of the rectangular groove (61), and the triangular groove (62) is communicated with the rectangular groove (61).
4. A PCB vibration jig according to any one of claims 2-3, wherein the locking assembly comprises a limiting pin (7), a plurality of limiting holes (11) are formed in the side wall of the guide rail (1) at equal intervals, and one end of the limiting pin (7) penetrates through the sliding seat (2) and is inserted into the limiting holes (11).
5. The PCB vibration clamp according to claim 4, wherein the sliding seat (2) is fixedly connected with a supporting frame (21), and the other end of the limiting pin (7) penetrates through the supporting frame (21) and is fixedly connected with a pull button (71);

the limiting pin (7) is sleeved with a second spring (72), the limiting pin (7) is fixedly connected with a baffle ring (73), and two ends of the second spring (72) are respectively propped against the supporting frame (21) and the baffle ring (73).
6. The vibration clamp for the PCB according to claim 1, wherein a retainer ring (53) is fixedly connected to one end, away from the clamping block (5), of the ejector rod (51), a limiting groove is formed in the ejector rod (51), and a limiting block corresponding to the limiting groove is formed in the second sliding block (4).
7. The PCB vibration clamp according to claim 6, characterized in that the first slider (3) is provided with five clamping grooves (6), and the second slider (4) is provided with five clamping blocks (5).