Clamping tool for circuit board processing

Abstract

The utility model discloses a clamping tool for circuit board processing, which belongs to the field of circuit board processing and comprises a workbench, a supporting block is fixedly arranged in the middle of the workbench, four equant reciprocating screw rods are rotatably arranged on the supporting block, threaded seats are in threaded connection with the outer walls of the four reciprocating screw rods, and fixing blocks are rotatably arranged on the top walls of the threaded seats. A vertical fixing layer and an arc-shaped fixing layer are symmetrically arranged on the two side walls of the fixing block, pressure sensors are arranged on the vertical fixing layer and the arc-shaped fixing layer, two positioning grooves in a vertical state are further formed in the top wall of the workbench, sliding blocks are arranged on the two positioning grooves in a sliding mode, and positioning blocks are rotatably arranged on the top walls of the sliding blocks; a right-angle positioning face and an arc-shaped positioning face are symmetrically arranged on the two side walls of the positioning block. According to square or circular circuit boards of different specifications in each batch, the circuit boards can be quickly positioned by moving the distance between the positioning block and the supporting block, and the four fixing blocks are close to the four side walls of the circuit boards to clamp and fix the circuit boards.

Description

Technical Field

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

[0002] Circuit board, also known as printed circuit board, is an indispensable component of electronic equipment. It not only carries electronic components, but also is responsible for the connection of circuits. The performance and reliability of circuit boards directly affect the overall performance of electronic products. Circuit board processing is a complex process that involves multiple steps and technologies, including material selection, design, manufacturing, testing, etc.

[0003] Clamping fixtures for circuit board processing refer to devices used to fix and position circuit boards during the circuit board production process. The design and application of such fixtures play a vital role in improving production efficiency and ensuring product quality.

[0004] Square and circular circuit boards are the most commonly used shapes of circuit boards. Square and circular circuit boards of different sizes need to be positioned and fixed during punching or other production procedures. Positioning is mainly used to ensure the correct position of the workpiece during the processing and to ensure the uniformity of the circuit boards processed each time. Fixing focuses on fixing the workpiece to prevent displacement or deformation during the processing.

[0005] However, traditional clamping tooling has poor versatility. For square or round circuit boards of different sizes, different sizes of clamping tooling often need to be prepared in advance. This is not only inconvenient to use, but also has low operating efficiency. It cannot fix square or round circuit boards of different sizes, and cannot play the role of rapid positioning, rapid clamping and removal, and rapid fixing. Utility Model Content

[0006] In order to solve the technical problem that the above-mentioned traditional clamping tooling has poor versatility, it is often necessary to prepare clamping tooling of different specifications in advance for square or round circuit boards of different specifications and sizes, which is not only inconvenient to use, but also has low operating efficiency and cannot fix square or round circuit boards of different specifications and sizes, and cannot play the role of rapid positioning, rapid clamping and removal, and rapid fixing, the utility model provides a clamping tool for circuit board processing.

[0007] A clamping tool for processing circuit boards includes a workbench, a support block is fixedly arranged in the middle of the workbench, four equally divided reciprocating screws are rotatably arranged on the support block, the outer walls of the four reciprocating screws are threadedly connected to threaded seats, the top wall of the threaded seat is rotatably provided with a fixing block, vertical fixing layers and arc-shaped fixing layers are symmetrically arranged on both side walls of the fixing block, pressure sensors are provided on the vertical fixing layer and the arc-shaped fixing layer, the top wall of the workbench is also provided with two vertical positioning grooves, sliders are slidably arranged on the two positioning grooves, the top wall of the slider is rotatably provided with a positioning block, and right-angle positioning surfaces and arc-shaped positioning surfaces are symmetrically provided on both side walls of the positioning block.

[0008] Furthermore, a servo motor is provided on the bottom wall of the workbench through a mounting frame, a cavity is provided inside the support block, a lower bevel gear is provided to rotate through the bottom wall of the cavity, the lower bevel gear is provided at the output end of the servo motor, and the inner ends of the four reciprocating screw rods all pass through the side walls of the cavity and are fixed with upper bevel gears, and the lower bevel gear and the upper bevel gear are meshed.

[0009] Furthermore, four supporting vertical plates are fixedly provided on the top wall of the workbench, and the outer ends of the four reciprocating screw rods respectively penetrate and are rotatably provided on the four supporting vertical plates. A control panel is also fixedly provided on the outer wall of the workbench.

[0010] Furthermore, the support block is a cylinder, and the angle between two adjacent reciprocating screws among the four reciprocating screws is ninety degrees. The outer wall threads of two reciprocating screws that form an angle of one hundred and eighty degrees among the four reciprocating screws are in opposite directions, so that the two thread seats on them can be close to or separated from each other. The two positioning grooves are perpendicular to each other, and the angle between them and the same reciprocating screw is forty-five degrees.

[0011] Furthermore, the vertical fixing layer and the arc-shaped fixing layer, the right-angle positioning surface and the arc-shaped positioning surface are all made of elastic and frictional materials, namely rubber materials, wherein the outer walls of the vertical fixing layer and the arc-shaped fixing layer are fixedly provided with pressure sensors, and the control panel and the pressure sensor and the servo motor are electrically connected.

[0012] Furthermore, the rotation of the fixing block on the top wall of the threaded seat and the rotation of the positioning block on the top wall of the slider are both alternating rotations of 180 degrees in forward and reverse directions.

[0013] Compared with the prior art, the beneficial effect of the present invention is that according to the different specifications of each batch of square or round circuit boards, the distance between the positioning block and the support block can be moved to ensure that when the two corners of the circuit board contact the two positioning blocks, the circuit board is exactly in the center of the support block, which is convenient for quickly positioning the circuit board each time. After positioning, the servo motor is started to drive the four fixing blocks to approach the four side walls of the circuit board to clamp and fix the circuit board. When the clamping force sensed by the pressure sensor is the same as the value of the control panel, the fixing block stops moving, which can avoid the circuit board being damaged by excessive clamping and fixing force. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic top view of the structure of the utility model;

[0015] Figure 2 This is a schematic top view of the structure of the utility model;

[0016] Figure 3 It is a front view schematic diagram of the utility model.

[0017] In the figure: 1. Workbench; 2. Support block; 3. Reciprocating screw; 4. Threaded seat; 5. Positioning groove; 6. Slider; 7. Fixed block; 8. Positioning block; 9. Vertical fixed layer; 10. Arc fixed layer; 11. Pressure sensor; 12. Right-angle positioning surface; 13. Arc positioning surface; 14. Servo motor; 15. Cavity; 16. Lower bevel gear; 17. Upper bevel gear; 18. Support vertical plate; 19. Control panel. DETAILED DESCRIPTION

[0018] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0019] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate for the embodiments of the present invention described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatuses.

[0020] In this utility model, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the utility model and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0021] Furthermore, some of the above terms may be used to express other meanings besides orientation or positional relationships. For example, the term "on" may also be used in certain circumstances to indicate a dependency or connection. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances. Furthermore, the term "plurality" should mean two or more.

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. Figure 1-Figure 3 The present invention is described in detail with reference to the embodiments.

[0023] A clamping tool for processing circuit boards includes a workbench 1, with a support block 2 fixedly arranged in the middle of the workbench 1, the support block 2 is a cylinder, and four equally divided reciprocating screws 3 are rotatably arranged on the support block 2, which can clamp and fix the four sides of a square or round circuit board. The angles between two adjacent reciprocating screws 3 in the four reciprocating screws 3 are both ninety degrees, and the outer wall threads of two reciprocating screws 3 at an angle of one hundred and eighty degrees in the four reciprocating screws 3 are in opposite directions, that is, the outer wall threads of the two reciprocating screws 3 on opposite sides are in opposite directions. When the outer wall threads of the two reciprocating screws 3 rotate in opposite directions, the two threaded seats 4 thereon can be brought close to or separated from each other to meet the clamping and fixing function of round or square circuit boards of different sizes.

[0024] A servo motor 14 is provided on the bottom wall of the workbench 1 through a mounting frame, a cavity 15 is provided inside the support block 2, a lower bevel gear 16 is provided to rotate through the bottom wall of the cavity 15, and the lower bevel gear 16 is provided at the output end of the servo motor 14, and the inner ends of the four reciprocating screw rods 3 all pass through the side walls of the cavity 15 and are fixed with upper bevel gears 17.

[0025] Start the servo motor 14 to drive the lower bevel gear 16 to rotate. Since the lower bevel gear 16 and the four upper bevel gears 17 are meshed, the four upper bevel gears 17 are also driven to rotate synchronously. In other words, the four reciprocating screw rods 3 rotate synchronously. Since the outer walls of the four reciprocating screw rods 3 are threadedly connected to the threaded seats 4, the synchronous rotation of the four reciprocating screw rods 3 drives the four threaded seats 4 to move closer to or separate from each other, thereby clamping and fixing square circuit boards and circular circuit boards of different sizes.

[0026] Four supporting vertical plates 18 are also fixedly provided on the top wall of the workbench 1. The outer ends of the four reciprocating screw rods 3 are respectively passed through and rotatably provided on the four supporting vertical plates 18. The four supporting vertical plates 18 can ensure the stability of the four reciprocating screw rods 3 during rotation. A control panel 19 is also fixedly provided on the outer wall of the workbench 1.

[0027] A fixed block 7 is rotatably provided on the top wall of the threaded seat 4, and a vertical fixed layer 9 and an arc-shaped fixed layer 10 are symmetrically provided on both side walls of the fixed block 7. Pressure sensors 11 are provided on both the vertical fixed layer 9 and the arc-shaped fixed layer 10. Pressure sensors 11 are fixedly provided on the outer walls of the vertical fixed layer 9 and the arc-shaped fixed layer 10. The control panel 19 is electrically connected to the pressure sensor 11 and the servo motor 14.

[0028] The vertical fixing layer 9 and the arc-shaped fixing layer 10 are in contact with the side walls of the square circuit board and the side walls of the circular circuit board respectively, and play a clamping and fixing role thereon. When the circuit board is to be clamped and fixed, the four threaded seats 4 move closer to the side walls of the circuit board, slowly contact the side walls of the circuit board and apply a certain clamping force. After the pressure sensor 11 senses the applied clamping force, it compares it with the appropriate pressure value preset on the control panel 19. When it is consistent with the preset pressure value, the control panel 19 sends a stop command to the servo motor 14, so that the threaded seat 4 stops moving, avoiding excessive clamping force to damage the circuit board, and can intelligently fix the circuit board appropriately. After other production operations on the circuit board are completed, the servo motor 14 can be rotated in the opposite direction, thereby loosening the clamping of the circuit board.

[0029] The top wall of the workbench 1 is also provided with two vertical positioning grooves 5. The two positioning grooves 5 are perpendicular to each other and have an angle of forty-five degrees with the same reciprocating screw 3. When the center of square or circular circuit boards of different specifications overlaps with the center of the support block 2, the distance between their outer wall and the positioning block 8 is different. Therefore, the circuit board can be accurately positioned by adjusting the moving distance of the positioning block 8 on the positioning groove 5.

[0030] Sliders 6 are slidably mounted on both positioning grooves 5. Positioning blocks 8 are rotatably mounted on the top walls of the slides 6. Right-angled positioning surfaces 12 and curved positioning surfaces 13 are symmetrically mounted on the side walls of the positioning blocks 8. Sliders 6 are moved to drive the positioning blocks 8 to slide within the positioning grooves 5, so that when the circuit board is in contact with the two positioning blocks 8, the center of the circuit board is aligned with the center of the support block 2. After securing the positioning blocks 8 in the positioning grooves 5, each time the circuit board is placed on the support block 2, simply push the circuit board so that its right-angled or circular side walls respectively contact the two right-angled positioning surfaces 12 and the curved positioning surface 13. This allows the circuit board to be quickly positioned, preventing it from skewing or shifting.

[0031] The vertical fixing layer 9 and the arc-shaped fixing layer 10, the right-angle positioning surface 12 and the arc-shaped positioning surface 13 are all made of elastic and frictional materials, such as rubber. The friction can largely prevent movement or slipping. The rubber has a certain elasticity and can play a certain buffering role in clamping and fixing the circuit board to avoid damage to the circuit board.

[0032] The rotation of the fixing block 7 on the top wall of the threaded seat 4 and the rotation of the positioning block 8 on the top wall of the slider 6 are both alternating rotations of 180 degrees in the forward and reverse directions. The rotational connection between the fixing block 7 and the top wall of the threaded seat 4 and the rotational connection between the positioning block 8 and the top wall of the slider 6 are both rotatable connection methods and connection structures existing in the prior art. They can be rotated 180 degrees and then fixed, and then rotated 180 degrees in the opposite direction and then fixed. This allows the right-angle positioning surface 12 and the arc-shaped positioning surface 13 to be rotated 180 degrees and then fixed, respectively corresponding to the side surfaces of the circuit board, and can respectively position square circuit boards and circular circuit boards. It also allows the vertical fixing layer 9 and the arc-shaped fixing layer 10 to be rotated 180 degrees and then fixed, respectively corresponding to the side surfaces of the circuit board, and can respectively clamp and fix square circuit boards and circular circuit boards.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A clamping fixture for circuit board processing, comprising a workbench (1), a support block (2) fixedly arranged in the middle of the workbench (1), characterized in that: Four equally divided reciprocating screw rods (3) are rotatably provided on the support block (2), the outer walls of the four reciprocating screw rods (3) are all threadedly connected to a threaded seat (4), a fixed block (7) is rotatably provided on the top wall of the threaded seat (4), a vertical fixed layer (9) and an arc-shaped fixed layer (10) are symmetrically provided on both side walls of the fixed block (7), and a pressure sensor (11) is provided on both the vertical fixed layer (9) and the arc-shaped fixed layer (10), and the top wall of the workbench (1) is also provided with two vertical positioning grooves (5), and a slider (6) is slidably provided on both the positioning grooves (5), and a positioning block (8) is rotatably provided on the top wall of the slider (6), and a right-angle positioning surface (12) and an arc-shaped positioning surface (13) are symmetrically provided on both side walls of the positioning block (8).

2. A clamping tool for circuit board processing according to claim 1, characterized in that: A servo motor (14) is provided on the bottom wall of the workbench (1) through a mounting frame, a cavity (15) is provided inside the support block (2), a lower bevel gear (16) is provided through the bottom wall of the cavity (15) and is rotatably provided, the lower bevel gear (16) is provided at the output end of the servo motor (14), the inner ends of the four reciprocating screw rods (3) all pass through the side walls of the cavity (15) and are fixedly provided with an upper bevel gear (17), and the lower bevel gear (16) and the upper bevel gear (17) are meshed.

3. A clamping tool for circuit board processing according to claim 2, characterized in that: The top wall of the workbench (1) is also fixedly provided with four supporting vertical plates (18), the outer ends of the four reciprocating screw rods (3) respectively penetrate and are rotatably provided on the four supporting vertical plates (18), and the outer wall of the workbench (1) is also fixedly provided with a control panel (19).

4. A clamping tool for circuit board processing according to claim 3, characterized in that: The support block (2) is a cylinder. The angle between two adjacent reciprocating screw rods (3) is 90 degrees. The outer wall threads of two reciprocating screw rods (3) that form an angle of 180 degrees among the four reciprocating screw rods (3) are in opposite directions, so that the two thread seats (4) thereon can be moved closer to or separated from each other. The two positioning grooves (5) are perpendicular to each other and the angle between them and the same reciprocating screw rod (3) is 45 degrees.

5. A clamping tool for circuit board processing according to claim 4, characterized in that: The vertical fixing layer (9), the arc-shaped fixing layer (10), the right-angle positioning surface (12) and the arc-shaped positioning surface (13) are all made of elastic and frictional materials, such as rubber. The outer walls of the vertical fixing layer (9) and the arc-shaped fixing layer (10) are fixedly provided with a pressure sensor (11). The control panel (19) is electrically connected to the pressure sensor (11) and the servo motor (14).

6. A clamping tool for circuit board processing according to claim 5, characterized in that: The rotation of the fixed block (7) on the top wall of the threaded seat (4) and the rotation of the positioning block (8) on the top wall of the slider (6) are both alternating rotations of 180 degrees in the forward and reverse directions.

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