Fixture for circuit board processing

Abstract

The utility model discloses a fixture for circuit board processing, which belongs to the technical field of circuit board processing and comprises a support frame, a first telescopic rod fixedly arranged at the bottom of the support frame, a tray fixedly arranged at the top end of the first telescopic rod, an air passage arranged inside the tray, and an elastic tube and a plurality of suckers respectively communicated with two ends of the air passage. The elastic tube is communicated with the vacuum pump; a group of rotating shafts are rotatably arranged above the tray, one rotating shaft is provided with a second telescopic rod, the telescopic end of the second telescopic rod and the other rotating shaft are fixedly provided with clamping assemblies, each clamping assembly comprises an L-shaped bottom plate, the top end of each L-shaped bottom plate is provided with a movable lead screw and a guide plate, and a pressing plate can move on the movable lead screws and the guide plates. The circuit board clamping device can adapt to clamping of circuit boards with different widths and meet the clamping requirements of the circuit boards with different thicknesses, the rotating shaft is driven by the double-end motor to turn over, double-face machining is directly achieved without secondary clamping, and vacuum adsorption can be conducted on the bottom faces of the circuit boards to enhance the stability.

Description

Technical Field

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

[0002] Circuit board, also known as printed circuit board, PCB for short, is a substrate for assembling electronic parts. It is mainly used to form point-to-point connections and printed components on a general substrate according to a predetermined design. The main function of the circuit board is to connect various electronic components to form a predetermined circuit, play a role in relay transmission, and is a key electronic interconnection part of electronic products. It is sometimes figuratively called the "mother of electronic products."

[0003] In the process of circuit board production, a clamp is needed to fix and support the circuit board for various operations, such as drilling, cutting, welding, etc. Circuit boards are not only single-sided, but also double-sided. Existing clamps can usually only clamp the circuit board for single-sided processing. It is not possible to directly turn over the other side after processing one side. Usually, the clamp needs to be released, turned over and clamped again, which is time-consuming and labor-intensive, reducing production efficiency. In addition, some clamps cannot be adjusted according to the width and thickness of different circuit boards. Utility Model Content

[0004] In order to solve the technical problems that the above-mentioned existing clamps can usually only clamp a circuit board for single-sided processing, and cannot be directly turned over to continue processing the other side after processing one side, and usually need to release the clamp, turn over and re-clamp it, which is time-consuming and labor-intensive, reduces production efficiency, and some clamps cannot be adjusted according to the width and thickness of different circuit boards, the utility model provides a clamp for circuit board processing.

[0005] A clamp for processing circuit boards comprises a support frame, a first telescopic rod is fixedly arranged at the bottom of the support frame, a tray is fixedly arranged at the top of the first telescopic rod, an airway is arranged inside the tray, elastic tubes and a plurality of suction cups are respectively arranged at both ends of the airway, and the elastic tubes are arranged in communication with a vacuum pump; a group of rotating shafts are rotatably arranged above the tray, one of the rotating shafts is provided with a second telescopic rod, a clamping assembly is fixedly arranged at the telescopic end of the second telescopic rod and the other rotating shaft, the clamping assembly comprises an L-shaped bottom plate, a movable screw and a guide plate are arranged at the top of the L-shaped bottom plate, and a pressure plate can move on the movable screw and the guide plate.

[0006] Furthermore, the support frame includes three vertical plates connected to each other, a horizontal plate is fixedly arranged below the vertical plates, the first telescopic rod is arranged on the top wall of the horizontal plate, and a double-headed motor is arranged on the outer wall of the middle vertical plate.

[0007] Furthermore, connecting shafts are fixedly provided at both output ends of the double-headed motor, and synchronous gears are fixedly provided on the two connecting shafts and the two rotating shafts, wherein the synchronous gears on the connecting shafts and the rotating shafts are movably connected via gear belts.

[0008] Furthermore, a connecting plate is fixedly provided at the inner end of one of the rotating shafts, a second telescopic rod is fixedly provided in the middle of the connecting plate, telescopic sliding rods are fixedly provided on both sides of the second telescopic rod, and the telescopic ends of the second telescopic rod and the telescopic sliding rod are fixedly connected to the L-shaped bottom plate.

[0009] Furthermore, the two side walls of the L-shaped bottom plate are each provided with a cavity, a stepper motor is arranged inside the cavity, a moving screw rod passes through the top wall of the cavity and is arranged at the output end of the stepper motor, a guide plate is fixedly arranged on both sides of the moving screw rod and is provided with a vertical slide groove, the pressure plate can move up and down on the periphery of the moving screw rod and inside the slide groove, and a buffer layer is fixedly arranged on the opposite surfaces of the pressure plate and the bottom wall of the L-shaped bottom plate, and the buffer layer is made of sponge or rubber material.

[0010] Furthermore, the vacuum pump is fixedly arranged on the inner wall of the vertical plate away from the second telescopic rod, the elastic tube is a corrugated hose, and the airway includes an air inlet and several air outlets, wherein the air inlet is connected to the elastic tube, and the several air outlets are connected and provided with several suction cups.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: by driving the clamping assembly to move closer to or away from another clamping assembly through the second telescopic rod, it can adapt to the clamping of circuit boards of different widths; by rotating the movable lead screw, the pressing plate can be moved up and down, thereby meeting the clamping needs of circuit boards of different thicknesses; by driving the rotating shaft to flip 180 degrees through a double-headed motor, double-sided processing can be achieved directly without secondary clamping; the tray is used in conjunction with the suction cup to perform vacuum adsorption on the bottom surface of the circuit board, further enhancing stability during the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;

[0013] Figure 2 It is a side view schematic diagram of the structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the structure A of the utility model;

[0015] Figure 4 It is a schematic diagram of partial structure B of the utility model.

[0016] In the figure: 1. support frame; 2. first telescopic rod; 3. tray; 4. airway; 5. elastic tube; 6. suction cup; 7. vacuum pump; 8. rotating shaft; 9. second telescopic rod; 10. clamping assembly; 11. L-shaped bottom plate; 12. moving screw rod; 13. guide plate; 14. pressure plate; 15. vertical plate; 16. double-headed motor; 17. connecting shaft; 18. synchronous gear; 19. gear belt; 20. connecting plate; 21. telescopic slide rod; 22. cavity; 23. stepping motor; 24. slide groove; 25. buffer layer; 26. cross plate. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only examples of the present invention.

[0018] 7. The embodiments of the utility model are only part of the embodiments, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0019] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the utility model described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0020] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0021] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this utility model can be understood according to the specific circumstances. In addition, the term "plurality" should mean two or more than two.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other. Figure 1-Figure 4 The utility model is described in detail in conjunction with the embodiments.

[0023] A clamp for processing circuit boards includes a support frame 1, a first telescopic rod 2 is fixedly arranged at the bottom of the support frame 1, the support frame 1 includes three vertical plates 15 connected to each other, a horizontal plate 26 is fixedly arranged below the vertical plates 15, the first telescopic rod 2 is fixedly arranged on the top wall of the horizontal plate 26, the first telescopic rod 2 and the second telescopic rod 9 are both electric telescopic rods, and a double-headed motor 16 is arranged on the outer wall of the vertical plate 15 in the middle through a mounting frame.

[0024] A set of rotating shafts 8 are rotatably arranged through the two opposite vertical plates 15, and connecting shafts 17 are fixedly arranged at both output ends of the double-headed motor 16. Synchronous gears 18 are fixedly arranged on the two connecting shafts 17 and the two rotating shafts 8, wherein the synchronous gears 18 on the connecting shafts 17 and the rotating shafts 8 are movably connected via gear belts 19.

[0025] Starting the double-headed motor 16 can drive the connecting shafts 17 on both sides to rotate. Under the cooperation of the synchronous gear 18 and the gear belt 19, the two rotating shafts 8 can achieve synchronous rotation, driving the clamping assembly 10 to achieve 180-degree flipping.

[0026] A connecting plate 20 is fixedly provided at the inner end of one of the two rotating shafts 8, a second telescopic rod 9 is fixedly provided in the middle of the connecting plate 20, telescopic slide rods 21 are fixedly provided on both sides of the second telescopic rod 9, the telescopic ends of the second telescopic rod 9 and the telescopic slide rod 21 are fixedly connected to the outer side wall of the L-shaped bottom plate 11, and the telescopic end of the second telescopic rod 9 and the other rotating shaft 8 are fixedly provided with a clamping assembly 10.

[0027] The second telescopic rod 9 is started to drive the clamping assembly 10 to extend closer to or retract away from the other clamping assembly 10. The moving distance and direction of the second telescopic rod 9 can be adjusted according to the width of different circuit boards. The second telescopic rod 9 drives the L-shaped bottom plate 11 to move, and the L-shaped bottom plate 11 simultaneously drives the telescopic slide rod 21 to move in coordination, thereby enhancing the overall stability and directionality during the movement.

[0028] The clamping assembly 10 includes an L-shaped base plate 11, a moving screw rod 12 and a guide plate 13 are arranged at the top of the L-shaped base plate 11, the side walls of the two L-shaped base plates 11 are provided with a cavity 22, a stepper motor 23 is arranged inside the cavity 22, the moving screw rod 12 passes through the top wall of the cavity 22 and is arranged at the output end of the stepper motor 23, the guide plate 13 is fixedly arranged on both sides of the moving screw rod 12, and a vertical slide groove 24 is arranged, and the pressure plate 14 can move up and down on the periphery of the moving screw rod 12 and inside the slide groove 24.

[0029] Put the circuit board on the bottom plate of the L-shaped bottom plate 11, start the stepper motor 23, and make it drive the movable screw 12 to rotate, so that the pressure plate 14 moves downward along the movable screw 12, and slides downward along the slide groove 24 at the same time. Since the pressure plate 14 and the bottom wall of the L-shaped bottom plate 11 are fixedly provided with a buffer layer 25 on the opposite surfaces, the buffer layer 25 is made of sponge or rubber. The buffer layer 25 can play a buffering role on the clamping surface of the circuit board to avoid direct contact and easy damage to the circuit board.

[0030] A tray 3 is fixedly provided at the top end of the first telescopic rod 2, an airway 4 is provided inside the tray 3, elastic tubes 5 and a plurality of suction cups 6 are respectively provided at both ends of the airway 4, the elastic tube 5 is connected to the vacuum pump 7, the vacuum pump 7 is fixedly provided on the inner wall of the vertical plate 15 away from the second telescopic rod 9, the elastic tube 5 is a corrugated hose, the airway 4 includes an air inlet and a plurality of air outlets, wherein the air inlet is connected to the elastic tube 5, and the plurality of air outlets are connected to each other and a plurality of suction cups 6 are provided.

[0031] After placing and clamping the circuit board, start the first telescopic rod 2 to drive the tray 3 to move upward until the plurality of suction cups 6 contact and abut against the bottom wall of the circuit board, start the vacuum pump 7 to inhale or release air into the airway 4 through the elastic tube 5, so that the suction cup 6 can adsorb or release the circuit board. After the circuit board is adsorbed, other processing is performed on the circuit board to ensure the stability and fixity of the circuit board.

[0032] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A clamp for processing a circuit board, comprising a support frame (1), characterized in that: A first telescopic rod (2) is fixedly arranged at the bottom of the support frame (1), a tray (3) is fixedly arranged at the top of the first telescopic rod (2), an airway (4) is arranged inside the tray (3), elastic tubes (5) and a plurality of suction cups (6) are respectively arranged at both ends of the airway (4), and the elastic tube (5) is arranged in communication with a vacuum pump (7); a group of rotating shafts (8) are rotatably arranged above the tray (3), a second telescopic rod (9) is arranged on one of the rotating shafts (8), a clamping assembly (10) is fixedly arranged at the telescopic end of the second telescopic rod (9) and the other rotating shaft (8), the clamping assembly (10) comprises an L-shaped bottom plate (11), a movable screw rod (12) and a guide plate (13) are arranged at the top of the L-shaped bottom plate (11), and a pressing plate (14) can move on the movable screw rod (12) and the guide plate (13).

2. A circuit board processing fixture according to claim 1, characterized in that: The support frame (1) comprises three vertical plates (15) connected to each other, a horizontal plate (26) is fixedly arranged below the vertical plates (15), a first telescopic rod (2) is arranged on the top wall of the horizontal plate (26), and a double-headed motor (16) is arranged on the outer wall of the middle vertical plate (15).

3. A circuit board processing fixture according to claim 2, characterized in that: A connecting shaft (17) is fixedly provided at both output ends of the double-headed motor (16), and a synchronous gear (18) is fixedly provided on the two connecting shafts (17) and the two rotating shafts (8), wherein the synchronous gears (18) on the connecting shaft (17) and the rotating shaft (8) are movably connected via a gear belt (19).

4. A circuit board processing fixture according to claim 2, characterized in that: A connecting plate (20) is fixedly arranged at the inner end of one of the rotating shafts (8), a second telescopic rod (9) is fixedly arranged in the middle of the connecting plate (20), telescopic sliding rods (21) are fixedly arranged on both sides of the second telescopic rod (9), and the telescopic ends of the second telescopic rod (9) and the telescopic sliding rod (21) are fixedly connected to the L-shaped bottom plate (11).

5. A circuit board processing fixture according to claim 4, characterized in that: The side walls of the two L-shaped bottom plates (11) are both provided with cavities (22), a stepping motor (23) is arranged inside the cavity (22), a moving screw rod (12) passes through the top wall of the cavity (22) and is arranged at the output end of the stepping motor (23), the guide plate (13) is fixedly arranged on both sides of the moving screw rod (12) and is provided with a vertical slide groove (24), the pressing plate (14) can move up and down on the outer periphery of the moving screw rod (12) and inside the slide groove (24), and a buffer layer (25) is fixedly arranged on the opposite surface of the bottom wall of the pressing plate (14) and the L-shaped bottom plate (11), and the buffer layer (25) is made of sponge or rubber material.

6. A circuit board processing fixture according to claim 2, characterized in that: The vacuum pump (7) is fixedly arranged on the inner side wall of the vertical plate (15) away from the second telescopic rod (9); the elastic tube (5) is a corrugated hose; the airway (4) includes an air inlet and a plurality of air outlets, wherein the air inlet is connected to the elastic tube (5), and the plurality of air outlets are connected to each other and are provided with a plurality of suction cups (6).

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