Circuit board clamping device convenient for spot welding in circuit board processing

Abstract

The utility model discloses a circuit board clamping device convenient for circuit board processing spot welding, which relates to the technical field of circuit boards, and comprises a workbench, a positioning assembly is arranged on the side part of the upper surface of the workbench, and an adjusting assembly is arranged on the other side part of the upper surface of the workbench corresponding to the positioning assembly; through cooperation of the positioning assembly and the adjusting assembly, preliminary positioning is provided for one side of the circuit board through the first positioning plate, and according to the longitudinal size of the circuit board, the circuit board is separated from the upper surface of the workbench to be positioned through flexible adjustment of the telescopic rod, the adjusting plate and the second positioning plate in the adjusting assembly; the problem of inclination caused by a gap generated when the circuit board is placed on the workbench is avoided, stability and levelness of the circuit board before clamping are ensured, then the circuit board is stably clamped through cooperation with the clamping assembly, the clamped circuit board can be accurately aligned with a welding spot, spot welding errors and unstable clamping caused by inclination of the circuit board are avoided, and the welding quality of the circuit board is improved. And the spot welding precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a circuit board clamping device which is convenient for processing spot welding of circuit boards. Background Art

[0002] The names of circuit boards include: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high-frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. Circuit boards miniaturize and visualize circuits, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. Circuit boards can be called printed circuit boards or printed circuit boards. Circuit boards are divided into three major categories according to the number of layers: single-sided boards, double-sided boards, and multi-layer circuit boards. There are many processing steps for circuit boards, including spot welding.

[0003] Since the surface of the circuit board is covered with components of various sizes and shapes, when the circuit board is placed on the workbench, these components will form a certain gap between the workbench, resulting in the circuit board being unable to completely fit the surface of the workbench, thereby presenting a certain horizontal tilt state. When the clamping device clamps the circuit board, due to the tilt of the circuit board, the clamping force is difficult to distribute evenly, which may cause some components on the circuit board to be damaged by excessive pressure, or the circuit board itself to deform. In addition, the tilted circuit board makes it difficult to accurately align the solder joints on the circuit board after the clamping plate is clamped, reducing the accuracy of spot welding. Therefore, the utility model proposes a circuit board clamping device that is convenient for circuit board processing spot welding. Utility Model Content

[0004] The purpose of the utility model is to provide a circuit board clamping device which is convenient for circuit board processing spot welding, so as to solve the problem raised in the above background technology that since the surface of the circuit board is covered with components of various sizes and shapes, when the circuit board is placed on a workbench, these components will form a certain gap between the workbench, resulting in the circuit board being unable to completely fit the surface of the workbench, thereby presenting a certain horizontal tilt state; when the clamping device clamps the circuit board, due to the tilt of the circuit board, the clamping force is difficult to distribute evenly, which may cause some components on the circuit board to be damaged by excessive pressure, or the circuit board itself to be deformed; in addition, the tilted circuit board makes it difficult to accurately align the clamping plate with the solder joints on the circuit board after clamping, thereby reducing the accuracy of spot welding.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A circuit board clamping device for facilitating spot welding of circuit boards comprises a workbench, a positioning assembly is arranged on the side of the upper surface of the workbench, an adjustment assembly is arranged on the other side of the upper surface of the workbench corresponding to the positioning assembly, mounting grooves are arranged on both sides of the workbench, and a driving assembly is arranged in the mounting grooves;

[0007] Among them, the driving assembly includes a bidirectional screw rod rotatably connected to the inside of the mounting groove, and a guide rod is provided inside the mounting groove and on the side of the bidirectional screw rod. The outsides of the bidirectional screw rods on both sides are connected with connecting parts with opposite threads, and the connecting parts are slidably connected to the outer surface of the guide rod. Support plates are laterally connected between the connecting parts on the same side, and connecting blocks are connected to the middle of one side of the support plates on both sides. The other end of the connecting block is connected to a clamping assembly, and the clamping assembly is symmetrically arranged about the center line of the workbench.

[0008] Optionally, the positioning assembly includes a first vertical plate, which is arranged on the side of the upper surface of the workbench, and the side of the first vertical plate is symmetrically connected to a first connecting rod, and the end of the first connecting rod is fixedly connected to a first positioning plate located above the workbench.

[0009] Optionally, the adjustment assembly includes a second vertical plate, which is located on the upper surface of the workbench and symmetrically arranged with respect to the first vertical plate. The side of the second vertical plate is symmetrically connected with a telescopic rod, the end of the telescopic rod is fixedly connected with an adjustment plate, the other side of the adjustment plate away from the telescopic rod is symmetrically connected with a second connecting rod, and the end of the second connecting rod is fixedly connected with a second positioning plate.

[0010] Optionally, the adjustment assembly also includes a slide rail fixedly mounted on the upper surface of the workbench, and the slide rail is longitudinally correspondingly arranged, the bottom of the adjustment plate is fixedly connected to a slider sliding on the slide rail, and a pull rod is provided on the top of the adjustment plate.

[0011] Optionally, the driving assembly further comprises a mounting seat arranged on the side of the workbench, a motor is fixedly mounted on the mounting seat, and an output end of the motor drives the bidirectional screws arranged on both sides to rotate through a sleeved synchronizing member.

[0012] Optionally, the clamping assembly includes a fixed plate, a lower clamping plate, a connecting plate, a spring, an upper clamping plate, an adjustment slot and a locking bolt, the fixed plate is fixedly connected to the end of the connecting block, and the bottom side of the fixed plate is fixedly connected to the lower clamping plate, the fixed plate is movably provided with a connecting plate on the same side of the lower clamping plate, a plurality of springs are linearly distributed along the bottom of the connecting plate, and the end of the spring away from the connecting plate is fixedly connected to the upper clamping plate.

[0013] Optionally, the adjustment groove is symmetrically opened on the fixing plate, and the adjustment groove passes through the side of the fixing plate, the locking bolt is arranged on the back side of the fixing plate, and the locking bolt passes through the adjustment groove to fix the connecting plate.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides preliminary positioning for one side of the circuit board through the cooperation of the positioning component and the adjusting component through the first positioning plate, and positions the circuit board away from the upper surface of the workbench through the flexible adjustment of the telescopic rod, the adjusting plate and the second positioning plate in the adjusting component according to the longitudinal size of the circuit board, thereby avoiding the problem of tilting caused by a gap when the circuit board is placed on the workbench, ensuring the stability and levelness of the circuit board before clamping, and then stably clamping the circuit board through the cooperation of the clamping component. After clamping, the circuit board can be accurately aligned with the soldering point, avoiding the spot welding error and clamping instability caused by the tilt of the circuit board, and improving the accuracy of spot welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a circuit board clamping device for facilitating spot welding of circuit boards according to the utility model;

[0017] Figure 2 It is a schematic structural diagram of another perspective of a circuit board clamping device for facilitating circuit board processing and spot welding according to the utility model;

[0018] Figure 3 It is a top view of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the adjustment component in the utility model.

[0020] The numbers in the figure are:

[0021] 1. Workbench; 101. Mounting slot;

[0022] 2. Positioning assembly; 201. first vertical plate; 202. first connecting rod; 203. first positioning plate;

[0023] 3. Adjustment assembly; 301. Second vertical plate; 302. Telescopic rod; 303. Adjustment plate; 304. Second connecting rod; 305. Second positioning plate; 306. Sliding block; 307. Sliding rail; 308. Pull rod;

[0024] 4. Driving assembly; 401. Bidirectional screw rod; 402. Guide rod; 403. Mounting seat; 404. Motor; 405. Synchronous member;

[0025] 5. Connecting piece; 6. Support plate; 7. Connecting block;

[0026] 8. Clamping assembly; 801. Fixing plate; 802. Lower clamping plate; 803. Connecting plate; 804. Spring; 805. Upper clamping plate; 806. Adjusting slot; 807. Locking bolt. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] The following is an explanation of the preferred embodiments of the device of the utility model.

[0029] See also Figure 1-4 As shown, the circuit board clamping device for facilitating spot welding of circuit boards comprises a workbench 1, a positioning assembly 2 is provided on the side of the upper surface of the workbench 1, an adjustment assembly 3 is provided on the other side of the upper surface of the workbench 1 corresponding to the positioning assembly 2, mounting grooves 101 are provided on both sides of the workbench 1, and a driving assembly 4 is installed in the mounting grooves 101;

[0030] Among them, the driving component 4 includes a bidirectional screw rod 401 rotatably connected to the inside of the installation groove 101, and a guide rod 402 is provided inside the installation groove 101 and on the side of the bidirectional screw rod 401. The outsides of the bidirectional screw rods 401 on both sides are connected with connecting parts 5 with opposite threads, and the connecting parts 5 are slidably connected to the outer surface of the guide rod 402. Support plates 6 are laterally connected between the connecting parts 5 on the same side, and connecting blocks 7 are connected to the middle of one side of the support plates 6 on both sides. The other end of the connecting block 7 is connected to a clamping component 8, and the clamping component 8 is symmetrically arranged about the center line of the workbench 1.

[0031] In another embodiment provided by the present invention, Figure 2 and 4 As shown, the positioning assembly 2 includes a first vertical plate 201, which is arranged on the side of the upper surface of the workbench 1, and the side of the first vertical plate 201 is symmetrically connected to a first connecting rod 202, and the end of the first connecting rod 202 is fixedly connected to a first positioning plate 203 located above the workbench 1;

[0032] Further, the adjustment assembly 3 includes a second vertical plate 301, which is located on the upper surface of the workbench 1 and is symmetrically arranged with respect to the first vertical plate 201. The side of the second vertical plate 301 is symmetrically connected with a telescopic rod 302, and the end of the telescopic rod 302 is fixedly connected with an adjustment plate 303. The other side of the adjustment plate 303 away from the telescopic rod 302 is symmetrically connected with a second connecting rod 304, and the end of the second connecting rod 304 is fixedly connected with a second positioning plate 305.

[0033] The adjustment assembly 3 also includes a slide rail 307 fixedly mounted on the upper surface of the workbench 1, and the slide rail 307 is longitudinally correspondingly arranged. The bottom of the adjustment plate 303 is fixedly connected with a slider 306 sliding on the slide rail 307, and a pull rod 308 is provided at the top of the adjustment plate 303.

[0034] Specifically, through the setting of the positioning component 2, the side of the circuit board can be placed in the first positioning plate 203 to achieve the initial positioning of the circuit board, and then the adjustment component 3 is used to adjust according to the longitudinal size of the circuit board, and the adjustment plate 303 is used to operate the extension and retraction of the telescopic rod 302 by pulling the pull rod 308. Through the extension and retraction of the telescopic rod 302, the adjustment plate 303 can move along the slide rail 307, thereby adjusting the position of the second positioning plate 305, so that the other side of the circuit board is placed in the second positioning plate 305, thereby achieving the positioning of the circuit board, and the circuit board is separated from the upper surface of the workbench 1 through the cooperation of the positioning component 2 and the adjustment component 3. Since the circuit board is lifted and stably positioned, the tilting problem caused by direct contact with the workbench 1 is avoided, so that the circuit board can be accurately aligned with the soldering point after clamping, thereby improving the accuracy and efficiency of spot welding.

[0035] In another embodiment provided by the present invention, Figure 3 As shown, the driving assembly 4 also includes a mounting seat 403 arranged on the side of the workbench 1, and a motor 404 is fixedly mounted on the mounting seat 403. The output end of the motor 404 drives the bidirectional screw rods 401 arranged on both sides to rotate through the sleeved synchronous member 405.

[0036] Specifically, the motor 404 drives the bidirectional screw rod 401 to rotate through the synchronization member 405. Since the bidirectional screw rod 401 is provided with opposing threads, when the bidirectional screw rod 401 rotates, the connecting members 5 on both sides will move toward the middle or both sides at the same time, thereby driving the clamping assembly 8 to clamp or release the circuit board, wherein the guide rod 402 is used to ensure the stability of the connecting member 5 during the movement.

[0037] It should be specifically explained that the synchronous component 405 is composed of a synchronous wheel and a wound synchronous belt.

[0038] In another embodiment provided by the present invention, Figure 2 As shown, the clamping assembly 8 includes a fixing plate 801, a lower clamping plate 802, a connecting plate 803, a spring 804, an upper clamping plate 805, an adjusting slot 806 and a locking bolt 807. The fixing plate 801 is fixedly connected to the end of the connecting block 7, and the bottom side of the fixing plate 801 is fixedly connected with the lower clamping plate 802. The fixing plate 801 is movably provided with a connecting plate 803 on the same side of the lower clamping plate 802. A plurality of springs 804 are linearly distributed along the bottom of the connecting plate 803. The end of the spring 804 away from the connecting plate 803 is fixedly connected with the upper clamping plate 805.

[0039] Furthermore, the adjustment slots 806 are symmetrically opened on the fixing plate 801 , and the adjustment slots 806 pass through the side of the fixing plate 801 , the locking bolts 807 are arranged on the back side of the fixing plate 801 , and the locking bolts 807 pass through the adjustment slots 806 to be fixedly connected to the connecting plate 803 .

[0040] Specifically, the clamping assemblies 8 on both sides are moved toward each other through the driving assembly 4. When the lower clamping plate 802 moves to the side of the circuit board, the position of the connecting plate 803 is adjusted by adjusting the locking bolt 807, thereby adjusting the distance between the upper clamping plate 805 and the lower clamping plate 802 to adapt to circuit boards of different thicknesses, until the upper clamping plate 805 applies downward pressure to the circuit board, and then cooperates with the lower clamping plate 802 to achieve clamping. During the clamping process, the spring 804 linearly distributed at the bottom of the connecting plate 803 causes the upper clamping plate 805 to apply a certain stress to the clamping plate to ensure its stability during the processing. After adjusting the locking bolt 807, the knob is fixed by the nut to achieve stable clamping of the circuit board, thereby improving the flexibility and applicability of the clamping.

[0041] It should be further explained that rubber pads are laid on the lower clamping plate 802 and the upper clamping plate 805 , and the lower clamping plate 802 is at the same level as the first positioning plate 203 and the second positioning plate 305 .

[0042] When in use, one side of the circuit board is placed on the first positioning plate 203, and the first positioning plate 203 is connected to the first vertical plate 201 through the first connecting rod 202 to ensure that one side of the circuit board is stably supported. According to the longitudinal size of the circuit board, the pull rod 308 is pulled to shrink the telescopic rod 302, so that the adjustment plate 303 slides along the slide rail 307, and the position of the second positioning plate 305 is adjusted, so that the circuit board is stably clamped between the first positioning plate 203 and the second positioning plate 305, and is lifted off the upper surface of the workbench 1, avoiding the problem of the circuit board being tilted due to components when the surface is placed horizontally, and then the motor 404 is started, and the motor 404 drives the bidirectional screw rod 401 to rotate through the synchronous member 405. When the bidirectional screw rod When 401 rotates, the connecting pieces 5 on both sides will move toward the middle at the same time. The connecting pieces 5 move stably under the guidance of the guide rod 402, driving the clamping assembly 8 to approach the circuit board. When the lower clamping plate 802 of the clamping assembly 8 moves to the side of the circuit board, the position of the connecting plate 803 on the adjusting groove 806 is adjusted by adjusting the locking bolt 807, so as to adjust the height of the upper clamping plate 805 to adapt to circuit boards of different thicknesses. The upper clamping plate 805 applies downward pressure to the circuit board under the action of the spring 804, and cooperates with the lower clamping plate 802 to stably clamp the circuit board. Through the cooperation of the positioning assembly 2, the adjusting assembly 3 and the clamping assembly 8, it is ensured that the circuit board can be accurately aligned with the soldering point after clamping, thereby improving the accuracy and efficiency of spot welding.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A circuit board clamping device for facilitating spot welding of circuit boards, characterized in that: The workbench (1) comprises a workbench (1), wherein a positioning assembly (2) is provided on a side of an upper surface of the workbench (1), an adjustment assembly (3) is provided on the other side of the upper surface of the workbench (1) corresponding to the positioning assembly (2), and mounting grooves (101) are provided on both sides of the workbench (1), and a driving assembly (4) is installed in the mounting grooves (101); The driving assembly (4) comprises a bidirectional screw rod (401) rotatably connected to the inside of the mounting groove (101); a guide rod (402) is provided inside the mounting groove (101) and beside the bidirectional screw rod (401); the outsides of the bidirectional screw rods (401) on both sides are connected to connecting pieces (5) by threads in opposite directions, and the connecting pieces (5) are slidably connected to the outer surface of the guide rod (402); support plates (6) are transversely connected between the connecting pieces (5) on the same side; the middle parts of the support plates (6) on both sides are connected to connecting blocks (7); the other end of the connecting block (7) is connected to a clamping assembly (8); and the clamping assembly (8) is symmetrically arranged about the center line of the workbench (1).

2. A circuit board clamping device for facilitating spot welding of circuit boards according to claim 1, characterized in that: The positioning assembly (2) comprises a first vertical plate (201), the first vertical plate (201) being arranged on the side of the upper surface of the workbench (1), the side of the first vertical plate (201) being symmetrically connected to a first connecting rod (202), and the end of the first connecting rod (202) being fixedly connected to a first positioning plate (203) located above the workbench (1).

3. A circuit board clamping device for facilitating spot welding of circuit boards according to claim 1, characterized in that: The adjustment assembly (3) comprises a second vertical plate (301), the second vertical plate (301) being located on the upper surface of the workbench (1) and symmetrically arranged with respect to the first vertical plate (201), the side of the second vertical plate (301) being symmetrically connected to a telescopic rod (302), the end of the telescopic rod (302) being fixedly connected to an adjustment plate (303), the other side of the adjustment plate (303) away from the telescopic rod (302) being symmetrically connected to a second connecting rod (304), and the end of the second connecting rod (304) being fixedly connected to a second positioning plate (305).

4. A circuit board clamping device for facilitating spot welding of circuit boards according to claim 3, characterized in that: The adjustment assembly (3) further comprises a slide rail (307) fixedly mounted on the upper surface of the workbench (1), and the slide rail (307) is arranged longitudinally correspondingly, a slider (306) is fixedly connected to the bottom of the adjustment plate (303) and slides on the slide rail (307), and a pull rod (308) is provided at the top of the adjustment plate (303).

5. A circuit board clamping device for facilitating spot welding of circuit boards according to claim 1, characterized in that: The driving assembly (4) further comprises a mounting seat (403) arranged on the side of the workbench (1), a motor (404) being fixedly mounted on the mounting seat (403), and an output end of the motor (404) drives the bidirectional screw rods (401) arranged on both sides to rotate via a sleeved synchronizing member (405).

6. A circuit board clamping device for facilitating spot welding of circuit boards according to claim 1, characterized in that: The clamping assembly (8) comprises a fixing plate (801), a lower clamping plate (802), a connecting plate (803), a spring (804), an upper clamping plate (805), an adjusting slot (806) and a locking bolt (807); the fixing plate (801) is fixedly connected to the end of the connecting block (7), and the bottom side of the fixing plate (801) is fixedly connected to the lower clamping plate (802); the fixing plate (801) is movably provided with a connecting plate (803) on the same side as the lower clamping plate (802); a plurality of springs (804) are linearly distributed along the bottom of the connecting plate (803); and the end of the spring (804) away from the connecting plate (803) is fixedly connected to the upper clamping plate (805).

7. A circuit board clamping device for facilitating spot welding of circuit boards according to claim 6, characterized in that: The adjusting groove (806) is symmetrically arranged on the fixing plate (801), and the adjusting groove (806) passes through the side of the fixing plate (801); the locking bolt (807) is arranged on the back side of the fixing plate (801), and the locking bolt (807) passes through the adjusting groove (806) to be fixedly connected to the connecting plate (803).

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