Universal circuit board welding detection tool

Abstract

The utility model discloses a universal circuit board welding detection tool, and relates to the field of circuit board detection. A universal circuit board welding detection tool comprises a working table, a placing table is fixedly installed in the middle of the upper end of the working table, two sets of second through grooves are symmetrically formed in the upper end of the working table, and the two sets of second through grooves are located in the two sides of the placing table. The sliding blocks are symmetrically connected into a cavity formed in the workbench in a sliding manner; compared with the prior art, the elastic force of the telescopic spring can be accurately regulated and controlled for a large-size circuit board, the circuit board is prevented from being clamped and damaged due to large clamping force, the integrity and the performance of the circuit board are effectively guaranteed, enough and appropriate clamping force can be given to a small-size circuit board through regulation, stable clamping is guaranteed, and the circuit board clamping device is convenient to use and high in practicability. The problems of displacement and the like in the detection process due to insufficient force are avoided, and the reliability and the high efficiency of detection work are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of circuit board detection, and concretely relates to a general-purpose circuit board welding detection tool. BACKGROUND

[0002] In the electronic product assembly process, the safety insulation problem is one of the key points of the forbidden process, in order to ensure the reliability of the product, the metal shell, pin, exposed lead of the component should have a certain safety gap with the metal shell and other structural parts, in some special application occasions, due to the safety gap restriction, the welding point height of the through-hole plug-in component is strictly limited, if it exceeds a certain height, it will cause safety reliability problem, therefore, the detection tool is needed to clamp the circuit board, and then the detection device is used to detect the welding point of the circuit board.

[0003] In the prior art, the application number is CN202221342167.2, and the name is a general-purpose circuit board welding detection tool, which discloses a general-purpose circuit board welding detection tool, which comprises a workbench, the lower end of the workbench is fixedly connected with four rectangularly distributed supporting legs, the workbench is provided with a storage groove, the inner bottom of the storage groove is slidably connected with two symmetrically arranged clamping plates, a connecting block is arranged between the two clamping plates, two connecting rods are slidably inserted into the connecting block, the two ends of the connecting rod respectively penetrate through the connecting block and are fixedly connected with the inner wall of the storage groove, and a linkage mechanism is arranged between the connecting block and the clamping plate.

[0004] Although the above-mentioned prior art can clamp different size circuit boards and quickly take down the circuit board through the setting of the clamping and adjusting mechanism, the spring force is difficult to adjust according to the size of the circuit board, in actual use, when clamping the circuit board with large size, the clamping plate will exert a large clamping force on the circuit board under the action of the spring force, which is easy to cause clamping injury, and for the circuit board with small size, the clamping effect is poor due to the small clamping force, which affects the accuracy and stability of detection, therefore, the utility model is proposed. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a general-purpose circuit board welding detection tool which can overcome the above-mentioned problems or at least partially solve the above-mentioned problems.

[0006] The utility model discloses a basic thought of technical scheme is: a general type circuit board welding detection frock, including work table, the middle position fixed mounting of work table upper end has the placing table, the upper end of work table is opened with two groups second through groove symmetry, two groups second through groove are located the both sides of placing table, still include: moving plate, symmetrically sliding connection in the cavity that the inside of work table is opened, moving clamping frame, symmetrically set up the both sides of placing table, the both sides lower end of moving clamping frame passes through second through groove and extends into the cavity, and with the same side moving plate mobile connection, be used for controlling the first drive mechanism of moving plate movement, install on work table, adjusting plate, sliding connection in the cavity, and located the outside of moving plate, telescopic spring, symmetrically fixed connection between moving plate and adjusting plate, telescopic guide rod, fixed connection between moving plate and adjusting plate, telescopic spring is set in telescopic guide rod outside, be used for controlling the second drive mechanism of adjusting plate movement, install on work table.

[0007] Further, the first drive mechanism includes a fixed rod, a lifting frame, a support rod, a pull rod and a foot ring, the fixed rod is symmetrically fixed in the cavity and located between the two moving plates, the lifting frame is slidingly connected to the two fixed rods, the support rod is rotatably connected to the lower end of the moving plate near the fixed rod, the end of the support rod away from the moving plate is rotatably connected to the lifting frame, the pull rod is fixedly connected to the lower end of the lifting frame, and the foot ring is fixedly connected to the end of the pull rod extending out of the cavity.

[0008] Further, the second drive mechanism includes a bidirectional screw rod, a sliding block, a drive box, a motor and a drive rod, the first through groove is symmetrically formed on the two sides of the workbench, the sliding block is symmetrically fixed to the two sides of the adjusting plate and slidingly arranged in the first through groove, the bidirectional screw rod is rotatably connected to the two sides of the workbench, the sliding block is threadedly connected to the bidirectional screw rod, the drive box is fixedly connected to one side of the workbench, the motor is fixedly connected in the drive box, the drive rod is rotatably connected in the drive box and located on the two sides of the motor, the output end of the motor is fixedly connected with a first sprocket, the drive rod is fixedly connected with a second sprocket, the first sprocket and the two second sprockets are connected by a chain, and the end of the drive rod extending out of the drive box is fixedly connected with the bidirectional screw rod on the same side.

[0009] In order to facilitate intuitive determination of the position of the sliding block, facilitate the accurate adjustment of the adjusting plate by the operator, and further more accurately control the elastic force of the telescopic spring, further, the workbench is provided with a scale line matched with the sliding block below one of the first through grooves.

[0010] In order to facilitate the smooth movement of the mobile clamping frame, avoid shaking deviation, make clamping more accurate and reliable, further, the second through slot is fixedly connected with a fixed guide rod, and the mobile clamping frame is slidingly connected on the fixed guide rod.

[0011] In order to facilitate the buffering of the clamping force, avoid the circuit board being clamped, further, the clamping surface of the mobile clamping frame is fixedly connected with a rubber soft pad.

[0012] Compared with the prior art, the utility model has the following beneficial effects: compared with the prior art, for the large size circuit board, the utility model can accurately control the elasticity of the extension spring, prevent the circuit board from being clamped and damaged due to the large clamping force, effectively protect the integrity and performance, for the small size circuit board, the utility model can also be adjusted to give sufficient and appropriate clamping force, ensure stable clamping, avoid displacement and other problems in the detection process due to insufficient force, greatly improve the reliability and efficiency of the detection work.

[0013] The specific embodiments of the utility model will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0014] In the drawings:

[0015] Figure 1 For the structure diagram of the utility model Figure 1 ;

[0016] Figure 2 For the structure diagram of the utility model Figure 2 ;

[0017] Figure 3 For the structure diagram of the utility model workbench and drive box inside.

[0018] In the drawing: 1, workbench; 101, cavity; 102, first through slot; 2, moving plate; 3, fixed rod; 4, lifting frame; 5, support rod; 6, pull rod; 7, foot ring; 8, adjusting plate; 9, extension spring; 10, extension guide rod; 11, sliding block; 12, bidirectional screw; 13, second through slot; 14, mobile clamping frame; 15, rubber soft pad; 16, placing table; 17, fixed guide rod; 18, drive box; 19, motor; 20, drive rod; 21, scale line. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and the following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0020] Embodiment 1:

[0021] Referring to Figures 1-3 A universal circuit board welding detection tool, including a workbench 1, the middle position of the upper end of the workbench 1 is fixedly installed with a placement table 16, the upper end of the workbench 1 is symmetrically provided with two groups of second through grooves 13, the two groups of second through grooves 13 are located on the two sides of the placement table 16, and the universal circuit board welding detection tool also includes: a moving plate 2, which is symmetrically and slidingly connected in the cavity 101 formed in the workbench 1; a moving clamping frame 14, which is symmetrically arranged on the two sides of the placement table 16, the two sides of the moving clamping frame 14 extend into the cavity 101 through the second through grooves 13, and are movably connected with the moving plate 2 on the same side; a first driving mechanism for controlling the movement of the moving plate 2, which is installed on the workbench 1; an adjusting plate 8, which is slidingly connected in the cavity 101 and located on the outer side of the moving plate 2; a telescopic spring 9, which is fixedly connected between the moving plate 2 and the adjusting plate 8; a telescopic guide rod 10, which is fixedly connected between the moving plate 2 and the adjusting plate 8, and the telescopic spring 9 is sleeved outside the telescopic guide rod 10; and a second driving mechanism for controlling the movement of the adjusting plate 8, which is installed on the workbench 1.

[0022] The first driving mechanism includes a fixed rod 3, a lifting frame 4, a support rod 5, a pull rod 6 and a foot ring 7, the fixed rod 3 is fixedly connected in the cavity 101 and located between the two moving plates 2, the lifting frame 4 is slidingly connected on the two fixed rods 3, the support rod 5 is rotatably connected on the lower end of the moving plate 2 close to the fixed rod 3, one end of the support rod 5 away from the moving plate 2 is rotatably connected with the lifting frame 4, the pull rod 6 is fixedly connected on the lower end of the lifting frame 4, and the foot ring 7 is fixedly connected on the end of the pull rod 6 extending out of the cavity 101.

[0023] The second driving mechanism includes a bidirectional screw rod 12, a sliding block 11, a driving box 18, a motor 19 and a driving rod 20, the workbench 1 is symmetrically provided with a first through groove 102 on the two sides, the sliding block 11 is fixedly connected on the two sides of the adjusting plate 8 and slidingly arranged in the first through groove 102, the bidirectional screw rod 12 is rotatably connected on the two sides of the workbench 1, the sliding block 11 is threadedly connected on the bidirectional screw rod 12, the driving box 18 is fixedly connected on one side of the workbench 1, the motor 19 is fixedly connected in the driving box 18, the driving rod 20 is rotatably connected in the driving box 18 and located on the two sides of the motor 19, the output end of the motor 19 is fixedly connected with a first sprocket, the driving rod 20 is fixedly connected with a second sprocket, the first sprocket and the two second sprockets are connected through a chain, and one end of the driving rod 20 extending out of the driving box 18 is fixedly connected with the bidirectional screw rod 12 on the same side.

[0024] When the circuit board welding point needs to be detected by the detection device, the worker first steps on the foot ring 7 and applies force downward, (it is more convenient to operate with the foot, and the hands can be free to operate other parts), moves the pull rod 6 downward through the foot ring 7, moves the lifting frame 4 downward through the pull rod 6, moves the two moving plates 2 in opposite directions through the support rod 5, then the two moving clamping frames 14 move away from each other, compresses the extension spring 9 through the moving plate 2, and then the circuit board can be placed on the placement table 16. After the circuit board is placed, the foot ring 7 can be slowly released, the moving plate 2 is moved to reset through the elastic pushing of the extension spring 9, so that the two moving clamping frames 14 can clamp the circuit board, and then the worker can detect the circuit board through the monitoring device.

[0025] When the detection is completed and the circuit board needs to be removed, the worker can step on the foot ring 7 again and apply force downward, so that the two moving clamping frames 14 move away from each other, (the principle is as above, which will not be repeated here), and the circuit board can be removed. At the same time, the moving plate 2 moves and drives the extension guide rod 10 to extend or retract. Through the setting of the extension guide rod 10, the stability of the moving plate 2 during movement can be improved.

[0026] When facing different sizes of circuit boards, the clamping force on the circuit board needs to be adjusted. At this time, the motor 19 in the drive box 18 is started. When the motor 19 works, the first sprocket at the output end will rotate. Since the first sprocket and the second sprocket on the drive rod 20 are connected by a chain, the rotation of the first sprocket will drive the second sprocket to rotate, thereby driving the drive rod 20 to rotate. The drive rod 20 is symmetrically connected to the drive box 18 and located on both sides of the motor 19, and the end extending out of the drive box 18 is fixedly connected with the same side of the double lead screw 12. Therefore, the drive rod 20 drives the double lead screw 12 to rotate. The two sides of the adjusting plate 8 are symmetrically fixedly connected with the sliding block 11, which slides in the first through groove 102 symmetrically opened on the two sides of the workbench 1. At the same time, the sliding block 11 is threadedly connected with the double lead screw 12. Therefore, the rotation of the double lead screw 12 will make the sliding block 11 slide in the first through groove 102, thereby driving the adjusting plate 8 to move in the cavity 101.

[0027] When the adjusting plate 8 moves, it will stretch or compress the extension spring 9 sleeved outside the extension guide rod 10. The extension guide rod 10 is fixedly connected between the moving plate 2 and the adjusting plate 8, and plays a guiding and supporting role. By adjusting the position of the adjusting plate 8, the stretching or compression degree of the extension spring 9 is changed, thereby adjusting the elastic force of the extension spring 9. The change of the elastic force of the extension spring 9 will act on the moving plate 2, thereby affecting the clamping force of the moving clamping frame 14 on the circuit board, so that it can exert appropriate clamping force according to the size of the circuit board.

[0028] Compared with the prior art, the detection tool can accurately control the elasticity of the telescopic spring 9 for large-sized circuit boards, prevent the circuit boards from being damaged due to too large clamping force, effectively guarantee the integrity and performance of the circuit boards, and also can give sufficient and appropriate clamping force to small-sized circuit boards through adjustment, ensure stable clamping, avoid displacement in the detection process due to insufficient force, and greatly improve the reliability and efficiency of the detection work.

[0029] Embodiment 2

[0030] With reference to Figures 1-3 A universal circuit board welding detection tool, which is basically the same as embodiment 1, and further comprises a scale line 21 arranged below one of the first through slots 102 on the workbench 1 and matched with the sliding block 11.

[0031] The scale line 21 arranged below the first through slot 102 on the workbench 1 and matched with the sliding block 11 can intuitively determine the position of the sliding block 11, facilitate the operator to accurately adjust the adjusting plate 8, and further accurately control the elasticity of the telescopic spring 9.

[0032] Embodiment 3

[0033] With reference to Figures 1-3 A universal circuit board welding detection tool, which is basically the same as embodiment 2, and further comprises a fixed guide rod 17 fixedly connected in the second through slot 13, and a movable clamping frame 14 slidingly connected on the fixed guide rod 17. The fixed guide rod 17 in the second through slot 13 allows the movable clamping frame 14 to slide along it, which can ensure the stable movement of the movable clamping frame 14, avoid shaking and deviation, make the clamping more accurate and reliable, and guarantee the stable clamping of the circuit board.

[0034] The movable clamping frame 14 is fixedly connected with a rubber cushion 15 on the clamping surface, which can increase the friction between the movable clamping frame 14 and the circuit board, make the clamping more stable, buffer the clamping force, avoid the circuit board being damaged, protect the surface and components of the circuit board, and improve the detection reliability.

[0035] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed as above with reference to the preferred embodiment, it is not intended to limit the present application.

Claims

1. A general-purpose circuit board welding inspection fixture, characterized in that, Includes a workbench (1), with a placement platform (16) fixedly installed at the middle position of the upper end of the workbench (1). Two sets of second through slots (13) are symmetrically opened at the upper end of the workbench (1), located on both sides of the placement platform (16). Also includes: The movable plate (2) is symmetrically slidably connected in the cavity (101) opened inside the workbench (1); The movable clamping frame (14) is symmetrically arranged on both sides of the placement platform (16). The lower ends of both sides of the movable clamping frame (14) extend into the cavity (101) through the second through groove (13) and are movably connected to the movable plate (2) on the same side. A first drive mechanism for controlling the movement of the movable plate (2) is mounted on the worktable (1); The adjusting plate (8) is slidably connected inside the cavity (101) and located outside the moving plate (2); A telescopic spring (9) is symmetrically and fixedly connected between the movable plate (2) and the adjusting plate (8); The telescopic guide rod (10) is fixedly connected between the movable plate (2) and the adjusting plate (8), and the telescopic spring (9) is sleeved on the outside of the telescopic guide rod (10); A second drive mechanism for controlling the movement of the adjustment plate (8) is mounted on the worktable (1).

2. The universal circuit board welding inspection fixture according to claim 1, characterized in that, The first driving mechanism includes a fixed rod (3), a lifting frame (4), a support rod (5), a pull rod (6), and a foot ring (7). The fixed rod (3) is symmetrically fixedly connected in the cavity (101) and located between the two moving plates (2). The lifting frame (4) is slidably connected to the two fixed rods (3). The support rod (5) is symmetrically rotatably connected to the lower end of the moving plate (2) near the fixed rod (3). The end of the support rod (5) away from the moving plate (2) is rotatably connected to the lifting frame (4). The pull rod (6) is fixedly connected to the lower end of the lifting frame (4). The foot ring (7) is fixedly connected to the end of the pull rod (6) that extends downward out of the cavity (101).

3. The universal circuit board welding inspection fixture according to claim 1, characterized in that, The second driving mechanism includes a bidirectional lead screw (12), a slider (11), a drive box (18), a motor (19), and a drive rod (20). The worktable (1) has symmetrically arranged first through slots (102) on both sides. The slider (11) is symmetrically fixedly connected to both sides of the adjusting plate (8) and slides within the first through slots (102). The bidirectional lead screw (12) is symmetrically rotatably connected to both sides of the worktable (1). The slider (11) is threadedly connected to the bidirectional lead screw (12). The drive box (18) is fixed... Connected to one side of the workbench (1), the motor (19) is fixedly connected inside the drive box (18), and the drive rod (20) is symmetrically rotatably connected inside the drive box (18) and located on both sides of the motor (19). The output end of the motor (19) is fixedly connected to a first sprocket, and the drive rod (20) is fixedly connected to a second sprocket. The first sprocket and the two second sprockets are connected by a chain. One end of the drive rod (20) extending out of the drive box (18) is fixedly connected to a bidirectional lead screw (12) on the same side.

4. The universal circuit board welding inspection fixture according to claim 3, characterized in that, The worktable (1) is provided with a scale line (21) for use with the slider (11) near one of the first through slots (102).

5. The universal circuit board welding inspection fixture according to claim 1, characterized in that, A fixed guide rod (17) is fixedly connected inside the second through groove (13), and the movable clamping frame (14) is slidably connected to the fixed guide rod (17).

6. The universal circuit board welding inspection fixture according to claim 1, characterized in that, A rubber pad (15) is fixedly connected to the clamping surface of the movable clamping frame (14).

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