Clamping mechanism for circuit board detection

Abstract

The utility model relates to the technical field of circuit board processing, in particular to a clamping mechanism for circuit board detection. Transmission gears are fixed to the two ends of the top end of the bearing plate, a containing frame is rotationally connected between the two transmission gears, guide grooves are formed in the two sides of the interior of the containing frame, clamping strips and adjusting blocks are slidably connected to the two ends of the inner sides of the guide grooves, and clamping springs are assembled on the two sides between the clamping strips and the adjusting blocks. A limiting mechanism used for adjusting the spring is arranged at one end of the adjusting block. According to the clamping mechanism for circuit board detection provided by the utility model, the two adjusting blocks are driven by the limiting mechanism to be adjusted in the direction away from each other, so that the elastic force of the spring becomes smaller and smaller under the condition of circuit boards with the same size and thickness, and the relatively thin circuit boards are effectively prevented from being damaged by relatively large elastic force.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a clamping mechanism for circuit board detection. Background Art

[0002] PCB circuit board, also known as printed circuit board, is the provider of electrical connections for electronic components. Most electrical appliances in daily life contain PCB circuit boards. Circuit boards are widely used. In the production and processing of circuit boards, a flip-up device is often required.

[0003] For example, patent (CN221010427U) discloses a circuit board flipping device comprising a carrier plate, a vertical plate, a connecting shaft, and a placement rack. Vertical plates are fixed to both ends of the top of the carrier plate, and one side of each vertical plate is rotatably connected to a connecting shaft via a bearing. A placement rack is fixed between the two connecting shafts. A fixing mechanism is mounted on the inner side of the placement rack, which is used to fix the circuit board. A flipping mechanism is mounted between the vertical plate and the placement rack, which is used to flip the placement rack. The structural design of the fixing mechanism of this utility model makes it easier to clamp and fix the circuit board, thereby improving work efficiency and enhancing the flexibility of the device. Furthermore, the structural design of the flipping mechanism allows the device to adjust the flipping angle of the circuit board, which is more convenient for use.

[0004] When using the above technology, it was found that the following technical problems exist in the existing technology: the circuit boards on the current market are divided into thicker, medium-thickness and thinner types, and the compressive resistance of circuit boards of different thicknesses is different. When a thinner circuit board is placed on the device, and the area of ​​the thinner circuit board is larger, the thinner circuit board will contract the spring of the device. The smaller the spring of the device contracts, the greater the elastic force. Therefore, the greater elastic force is not friendly to thinner and larger circuit boards, and may cause the circuit board to deform, crack, or damage components, such as chip cracking, solder joint breakage, etc. Therefore, the device needs to be designed to adjust the elastic force according to the compressive resistance of the circuit board. To this end, we designed a clamping mechanism for circuit board detection to provide another technical solution to the above technical problems. Summary of the Invention

[0005] Based on this, it is necessary to provide a clamping mechanism for circuit board detection to address the above technical problems. During use, when a circuit board with poor pressure resistance is placed on the device, the two adjustment blocks are driven by the limiting mechanism to adjust in the direction away from each other. Therefore, in the case of circuit boards of the same size and thickness, the elastic force of the spring will become smaller and smaller, thereby effectively preventing the larger elastic force from causing damage to the thinner circuit board, and facilitating the adjustment of the corresponding appropriate elastic force according to circuit boards of different thicknesses, thereby improving the friendliness of clamping circuit boards of different thicknesses.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A clamping mechanism for circuit board inspection includes a carrying plate, both ends of the top of the carrying plate are fixed with vertical plates, a placement rack is rotatably connected between the two vertical plates, guide grooves are provided on both sides of the placement rack, both ends of the inner side of the guide grooves are slidably connected with clamping strips and adjustment blocks, clamping springs are installed on both sides between the clamping strip and the adjustment block, and a limiting mechanism for adjusting the spring is provided at one end of the adjustment block.

[0008] As a preferred embodiment of the clamping mechanism for circuit board detection provided by the utility model, one end of one of the vertical plates is provided with a power mechanism for driving the placement rack to flip horizontally, and the power mechanism includes a transmission gear, an engaging gear and a servo motor, and the top end of one end of one of the vertical plates is rotatably connected to the engaging gear, and the top end of the engaging gear is meshedly connected to the transmission gear, and the other end of one of the vertical plates is fixed with a servo motor, and the output end of the servo motor passes through the vertical plate and is fixed to the transmission gear.

[0009] As a preferred embodiment of the clamping mechanism for circuit board detection provided by the present invention, a plurality of buffer pads are fixed to the inner side of the clamping strip, and one end of the buffer pad is in contact with the circuit board.

[0010] As a preferred embodiment of the clamping mechanism for circuit board detection provided by the utility model, the limiting mechanism includes an L-shaped block, an elastic spring and a pin. An L-shaped block is fixed on one side of the adjustment block, and a pin is slidably connected to the inside of the L-shaped block. One side of the pin is clamped with the placement rack.

[0011] As a preferred embodiment of the clamping mechanism for circuit board detection provided by the present invention, a plurality of limiting holes are opened on one side of the interior of the placement rack, and one side of the latch is slidably connected to the corresponding limiting holes.

[0012] As a preferred embodiment of the clamping mechanism for circuit board detection provided by the present invention, an elastic spring is sleeved on the outer side of the latch, one side of the elastic spring is fixed to the L-shaped block, and the other end of the elastic spring is fixed to the latch.

[0013] As a preferred embodiment of the clamping mechanism for circuit board detection provided by the present invention, an elastic spring is sleeved on the outer side of the latch, one side of the elastic spring is fixed to the L-shaped block, and the other end of the elastic spring is fixed to the latch.

[0014] It can be seen without a doubt that the above-mentioned technical solution of this application can definitely solve the technical problem to be solved by this application.

[0015] At the same time, through the above technical solutions, the present invention has at least the following beneficial effects:

[0016] The utility model provides a clamping mechanism for circuit board detection, which drives the elastic spring to contract by pulling the latch, so that one end of the latch is disengaged from the limiting hole, and then the sliding L-shaped block drives the adjusting block to adjust in the direction away from the clamping strip. At this time, the expansion and contraction range of the clamping spring gradually increases, and the elastic force of the clamping spring gradually decreases, and then the latch is clamped with the corresponding limiting hole within the compressive capacity range of the thinner circuit board, so that the elastic force of the clamping spring can effectively adjust the thinner circuit board, which is convenient for adjusting the corresponding appropriate elastic force clamping according to circuit boards of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the power mechanism of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the clamping strip and the adjustment block of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the limiting mechanism of the utility model.

[0022] In the figure: 1. Loading plate; 2. Vertical plate; 3. Transmission gear; 4. Meshing gear; 5. Servo motor; 6. Placement rack; 7. Clamping strip; 8. Adjustment block; 9. Buffer pad; 10. Clamping spring; 11. L-shaped block; 12. Limiting hole; 13. Elastic spring; 14. Latch. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. Example

[0027] Please refer to Figure 1-Figure 4 A clamping mechanism for circuit board inspection includes a carrier plate 1, with vertical plates 2 fixed at both ends of the top of the carrier plate 1, a placement rack 6 rotatably connected between the two vertical plates 2, guide grooves are provided on both sides of the placement rack 6, and clamping strips 7 and adjustment blocks 8 are slidably connected at both ends of the inner side of the guide grooves. The two adjustment blocks 8 are located at both ends of the clamping strip 7, and clamping springs 10 are installed on both sides between the clamping strip 7 and the adjustment block 8. A limiting mechanism for adjusting the spring is provided at one end of the adjustment block 8;

[0028] During use, when a circuit board with poor pressure resistance is placed on the device, the limiting mechanism drives the two adjustment blocks 8 to adjust in the direction away from each other. Therefore, in the case of circuit boards of the same size and thickness, the elastic force of the spring will become smaller and smaller, thereby effectively preventing the larger elastic force from damaging the thinner circuit board, making it easier to adjust the appropriate elastic force according to the circuit boards of different thicknesses, thereby improving the friendliness of clamping circuit boards of different thicknesses.

[0029] One end of one of the vertical plates 2 is provided with a power mechanism for driving the placement rack 6 to flip horizontally. The power mechanism includes a transmission gear 3, a meshing gear 4 and a servo motor 5. The top end of one end of one of the vertical plates 2 is rotatably connected to the meshing gear 4, and the top end of the meshing gear 4 is meshedly connected to the transmission gear 3. The other end of one of the vertical plates 2 is fixed with the servo motor 5, and the output end of the servo motor 5 passes through the vertical plate 2 and is fixed to the transmission gear 3.

[0030] When the servo motor 5 is started, the transmission gear 3, the meshing gear 4 and the placement rack 6 are driven to rotate, so as to facilitate the rapid detection of both sides of the circuit board;

[0031] Several buffer pads 9 are fixed to the inner side of the clamping strip 7. One end of the buffer pad 9 contacts the circuit board. The buffer pad 9 effectively buffers and protects the circuit board, making it easier to prevent damage to the circuit board during the clamping process.

[0032] The limiting mechanism includes an L-shaped block 11, an elastic spring 13 and a latch 14. The L-shaped block 11 is fixed to one side of the adjustment block 8. The inside of the L-shaped block 11 is slidably connected to the latch 14. One side of the latch 14 is engaged with the placement rack 6. One side of the interior of the placement rack 6 is provided with a plurality of limiting holes 12. One side of the latch 14 is slidably connected to the corresponding limiting holes 12. The outer side of the latch 14 is sleeved with an elastic spring 13. One side of the elastic spring 13 is fixed to the L-shaped block 11, and the other end of the elastic spring 13 is fixed to the latch 14.

[0033] When a thinner circuit board is placed between the two clamping strips 7 for clamping, the pressure resistance of the thinner circuit board is poor at this time, and then the latch 14 is pulled to drive the elastic spring 13 to contract, so that one end of the latch 14 is disengaged from the limiting hole 12, and then the sliding L-shaped block 11 drives the adjustment block 8 to adjust in the direction away from the clamping strip 7. At this time, the telescopic range of the clamping spring 10 gradually becomes larger, and the elastic force of the clamping spring 10 gradually becomes smaller, and then the latch 14 is clamped with the corresponding limiting hole 12 within the pressure resistance range of the thinner circuit board, so that the elastic force of the clamping spring 10 can effectively adjust the thinner circuit board, which is convenient for adjusting the appropriate elastic force clamping according to circuit boards of different thicknesses;

[0034] The area of ​​the circuit board in this embodiment remains unchanged, and the circuit boards are mainly changed to different thicknesses to obtain corresponding experimental data.

[0035] The use process of the clamping mechanism for circuit board detection provided by the utility model is as follows:

[0036] Working principle: When a thinner circuit board is placed between the two clamping strips 7 for clamping, the latch 14 is pulled to drive the elastic spring 13 to contract, so that one end of the latch 14 is disengaged from the limiting hole 12, and then the sliding L-shaped block 11 drives the adjustment block 8 to adjust in the direction away from the clamping strip 7. At this time, the telescopic range of the clamping spring 10 gradually increases, and the elastic force of the clamping spring 10 gradually decreases, and then the latch 14 is clamped with the corresponding limiting hole 12 within the compressive capacity of the thinner circuit board, so that the elastic force of the clamping spring 10 is The L-shaped block 11 drives the adjusting block 8 to slide toward the clamping strip 7, thereby contracting the clamping spring 10. The greater the elastic force of the clamping spring 10, the greater the elastic force of the clamping spring 10. The clamping spring 10 drives the clamping strip 7 to clamp the thicker circuit board. At this time, the clamping spring 10 effectively improves the stability of the clamping of the thicker circuit board. Therefore, it is convenient to adjust the appropriate elastic force clamping according to the circuit boards of different thicknesses.

[0037] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A clamping mechanism for circuit board testing, characterized in that: The utility model comprises a supporting plate (1), both ends of the top of the supporting plate (1) are fixed with vertical plates (2), a placement frame (6) is rotatably connected between the two vertical plates (2), both sides of the interior of the placement frame (6) are provided with guide grooves, both ends of the inner side of the guide grooves are slidably connected with clamping strips (7) and adjustment blocks (8), both sides between the clamping strip (7) and the adjustment block (8) are equipped with clamping springs (10), and one end of the adjustment block (8) is provided with a limiting mechanism for adjusting the spring.

2. A clamping mechanism for circuit board detection according to claim 1, characterized in that: One end of one of the vertical plates (2) is provided with a power mechanism for driving the placement frame (6) to flip horizontally, and the power mechanism includes a transmission gear (3), a meshing gear (4) and a servo motor (5), wherein the top end of one end of one of the vertical plates (2) is rotatably connected to the meshing gear (4), and the top end of the meshing gear (4) is meshedly connected to the transmission gear (3), and the other end of one of the vertical plates (2) is fixed with a servo motor (5), and the output end of the servo motor (5) passes through the vertical plate (2) and is fixed to the transmission gear (3).

3. A clamping mechanism for circuit board detection according to claim 2, characterized in that: A plurality of buffer pads (9) are fixed on the inner side of the clamping strip (7), and one end of the buffer pad (9) is in contact with the circuit board.

4. A clamping mechanism for circuit board detection according to claim 2, characterized in that: The limiting mechanism comprises an L-shaped block (11), an elastic spring (13) and a latch (14); the L-shaped block (11) is fixed to one side of the adjusting block (8); the interior of the L-shaped block (11) is slidably connected to the latch (14); and one side of the latch (14) is engaged with the placement rack (6).

5. The clamping mechanism for circuit board detection according to claim 4, characterized in that: A plurality of limiting holes (12) are provided on one side of the interior of the placement rack (6), and one side of the latch (14) is slidably connected to the corresponding limiting holes (12).

6. The clamping mechanism for circuit board detection according to claim 5, characterized in that: An elastic spring (13) is sleeved on the outer side of the latch (14), one side of the elastic spring (13) is fixed to the L-shaped block (11), and the other end of the elastic spring (13) is fixed to the latch (14).

7. The clamping mechanism for circuit board detection according to claim 4, characterized in that: An elastic spring (13) is sleeved on the outer side of the latch (14), one side of the elastic spring (13) is fixed to the L-shaped block (11), and the other end of the elastic spring (13) is fixed to the latch (14).

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