PCB clamping device

Abstract

The utility model relates to the technical field of PCB clamping, in particular to a PCB clamping device which comprises a base, clamping jaw arms and a driving assembly, the two clamping jaw arms are oppositely arranged, at least one clamping jaw arm is connected with the base in a sliding mode in the first direction, the driving assembly is installed on the base, and the clamping jaw arms are connected with the driving assembly in a sliding mode. The driving assembly is connected with the clamping jaw arm slidably connected with the base so as to drive the clamping jaw arm to move close to or away from the direction where the other clamping jaw arm is located. Clamping blocks are installed on the opposite inner side faces of the two clamping jaw arms, a clamping space is formed between the two opposite clamping blocks, and the clamping blocks and the clamping jaw arms are adjustably connected in the length direction of the clamping jaw arms. Due to the fact that the clamping block and the clamping jaw arm are adjustably connected in the length direction of the clamping jaw arm, the position of the clamping block on the clamping jaw arm can be adjusted according to the irregular-shaped position of the to-be-clamped face of the PCB, the clamping block can avoid the irregular position, difficult to clamp, of the to-be-clamped face of the PCB, and the clamping efficiency of the PCB is improved. And therefore, the clamping blocks can play a role in stably clamping the PCB.

Description

Technical Field

[0001] This utility model relates to the field of PCB board clamping technology, and more specifically, to a PCB board clamping device. Background Technology

[0002] PCB boards are a crucial component in automotive audio-visual electronic products. Currently, the production process typically requires a double-sided conformal coating process, which necessitates flipping the PCB board. This flipping operation utilizes a PCB clamping device to hold the PCB in place, and then a rotating component connected to the clamping device rotates the entire device to achieve the PCB flip. However, existing clamping devices have two opposing clamping surfaces on opposite sides of the gripper arms that contact the PCB board. Some PCB boards have irregular protrusions on their sides (the clamping surfaces), making it impossible for the gripper arms to avoid these protrusions, thus hindering the clamping of the PCB board. Utility Model Content

[0003] This invention addresses the problem in the prior art where the clamping plane of the gripper arm cannot avoid the irregular protrusions on the side of the PCB board, thus making it impossible to clamp the PCB board. It provides a PCB board clamping device.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a PCB board clamping device, including a base, a gripper arm, and a drive assembly. Two gripper arms are arranged opposite to each other, and at least one gripper arm is slidably connected to the base along a first direction. The drive assembly is mounted on the base and is connected to the gripper arm slidably connected to the base to drive the gripper arm to move closer to or away from the other gripper arm. Clamping blocks are installed on the inner surfaces of the two gripper arms facing each other, and a clamping space is formed between the two opposing clamping blocks. The clamping blocks are adjustablely connected to the gripper arms along the length direction of the gripper arms.

[0005] In the technical solution of this application, two gripper arms are located on both sides of the PCB board to be clamped. The drive assembly drives the gripper arms to move in a direction closer to each other, and the PCB board is clamped by clamping blocks installed on the opposite sides of the two gripper arms. Since the clamping blocks are adjustablely connected to the gripper arms along the length of the gripper arms, the position of the clamping blocks on the gripper arms can be adjusted according to the irregular shape of the PCB board to be clamped, so that the clamping blocks can avoid the irregular shape of the PCB board to be clamped, that is, the clamping blocks can move to a position that can clamp the PCB board to be clamped, so that the clamping blocks can play a stable clamping role on the PCB board.

[0006] Furthermore, through holes are provided on the inner sides of the two gripper arms facing each other. The length direction of the through holes is arranged along the length direction of the gripper arms. Fasteners are installed in the through holes, and one end of the fastener extending out of the through holes is threadedly connected to the gripping block.

[0007] Furthermore, countersunk holes are formed on the inner surfaces of the two gripper arms facing each other and located outside the waist hole. The length direction of the countersunk holes is arranged along the length direction of the gripper arms. The clamping block is partially accommodated in the countersunk holes, and the two side walls of the clamping block are in contact with the two side walls of the countersunk holes.

[0008] Furthermore, one end of the connecting part is adjustablely connected to the gripper arm, and the other end of the connecting part is connected to the two clamping parts, which are arranged opposite to each other to form a positioning space.

[0009] Furthermore, the positioning space extends toward the connecting portion to form a positioning groove.

[0010] Furthermore, the two clamping portions have inclined surfaces on their opposite sides, which are inclined toward the center of the positioning space.

[0011] Furthermore, the drive assembly includes a drive motor, a transmission belt, and a driven pulley. The drive motor is mounted on the base, and a drive pulley is mounted on the output shaft of the drive motor. The driven pulley is rotatably mounted on the base. The transmission belt is wound around the drive pulley and the driven pulley. The two gripper arms are slidably connected to the base, and the two gripper arms are respectively connected to two opposite sides of the transmission belt.

[0012] Furthermore, the PCB board clamping device also includes a sensor for detecting the position of the gripper arm. The sensor is connected to a controller, which is electrically connected to the drive assembly. The sensor is adjustablely mounted on the base along a first direction.

[0013] Furthermore, the gripper arm is provided with a component to be tested at the slidable connection with the base, the component to be tested extends toward the sensor, and the sensor has a detection notch for the component to be tested to pass through.

[0014] Furthermore, a rotating assembly for driving the base to rotate is also connected to the base.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, since the clamping block and the gripper arm are adjustablely connected along the length direction of the gripper arm, the position of the clamping block on the gripper arm can be adjusted according to the position of the irregular shape of the PCB board to be clamped, so that the clamping block can avoid the irregular shape position on the PCB board to be clamped, that is, the clamping block can be moved to a position that can clamp the PCB board to be clamped, so that the clamping block can play a stable clamping role on the PCB board. Attached Figure Description

[0016] Figure 1 This is a perspective view of the PCB board clamping device of this utility model;

[0017] Figure 2 This is a perspective view of the PCB board clamping device of this utility model from the right side.

[0018] Figure 3 This is a perspective view of the PCB board clamping device of this utility model from the left side.

[0019] Figure 4 This is a perspective view of the PCB board clamping device of this utility model from a side view.

[0020] Figure 5 This is a perspective view of the clamping block in the PCB board clamping device of this utility model;

[0021] Figure 6 This is a perspective view of the clamping block from the left side of the PCB board clamping device of this utility model.

[0022] In the attached diagram: 1. Base; 2. Gripper arm; 3. Drive assembly; 4. Gripping block; 5. Gripping space; 6. Waist hole; 7. Fastener; 8. Countersunk hole; 9. Sensor; 10. Item to be inspected; 11. Detection notch; 15. Rotating assembly; 41. Connecting part; 42. Gripping part; 43. Positioning space; 44. Positioning groove; 45. Inclined surface; 46. Threaded hole; 31. Drive motor; 32. Transmission belt; 33. Driven wheel; 34. Drive wheel; 12. Guide rail; 13. Slider; 14. Mounting base. Detailed Implementation

[0023] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0024] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0026] Example 1

[0027] like Figures 1 to 3 As shown, a PCB board clamping device includes a base 1, gripper arms 2, and a drive assembly 3. Two gripper arms 2 are arranged opposite to each other, and at least one gripper arm 2 is slidably connected to the base 1 along a first direction. The drive assembly 3 is mounted on the base 1 and is connected to the gripper arm 2 slidably connected to the base 1 to drive the gripper arm 2 to move closer to or away from the direction of the other gripper arm 2. Clamping blocks 4 are installed on the inner surfaces of the two gripper arms 2 facing each other, and a clamping space 5 is formed between the two opposing clamping blocks 4. The clamping blocks 4 and the gripper arms 2 are adjustablely connected along the length direction of the gripper arms 2.

[0028] In this embodiment, two gripper arms 2 are located on both sides of the PCB board to be clamped. The drive assembly 3 drives the gripper arms 2 to move towards each other, and the PCB board is clamped by clamping blocks 4 installed on opposite sides of the two gripper arms 2. Since the clamping blocks 4 are adjustablely connected to the gripper arms 2 along the length of the gripper arms 2, the position of the clamping blocks 4 on the gripper arms 2 can be adjusted according to the irregular shape of the PCB board to be clamped, so that the clamping blocks 4 can avoid irregular and difficult-to-clamp positions on the PCB board to be clamped, so that the clamping blocks 4 can move to a position that can clamp the PCB board to be clamped, thereby enabling the clamping blocks 4 to stably clamp the PCB board. It should be noted that the number of clamping blocks 4 on the same gripper arm 2 can be set as needed. There can be one, two or more clamping blocks 4. When both gripper arms 2 are slidably connected to the base plate, the drive assembly 3 can drive the two gripper arms 2 to move towards each other or away from each other respectively. A guide rail 12 is provided on the base 1 along a first direction, and a slider 13 is provided on the gripper arm 2 which is slidably connected to the base 1. The slider 13 is slidably connected to the guide rail 12. In this embodiment, since the base 1 is provided with the guide rail 12, and the gripper arm 2 is slidably connected to the guide rail 12 through the slider 13, the stability of the gripper arm 2 during movement can be ensured.

[0029] like Figures 1 to 4 , Figure 6 As shown, through holes 6 are provided on the inner sides of the two opposing gripper arms 2. The length direction of the holes 6 is along the length direction of the gripper arms 2. Fasteners 7 are installed in the holes 6, and one end of the fastener 7 extending out of the holes 6 is threadedly connected to the gripping block 4. In this embodiment, since the gripping block 4 can be adjusted along the length direction of the gripping arms, and the fastener 7 is located in the holes 6, when the gripping block 4 moves to a suitable position on the gripping arms, the fastener 7 passes through the hole 6 at the end away from the gripping block 4, then extends out of the hole 6 and is threadedly connected to the threaded hole 46 on the gripping block 4. Due to the setting of the holes 6, the movement of the gripping block 4 on the gripper arms 2 is continuous. By slightly loosening the fastener 7, the gripping block 4 can move together with the fastener 7, thereby adjusting the position of the gripping block 4 on the gripper arms 2. It should be noted that the fastener 7 can be a fastening screw. The threaded hole on the gripping block 4 is opened on the end face of the gripping block 4 near the gripper arms 2. The length of the waist hole 6 can be set as needed. In one embodiment, several adjustment holes are provided on the opposite inner surfaces of the two gripper arms 2. Each adjustment hole is arranged along the length of the gripper arm 2. A fastener 7 is installed in the adjustment hole, and one end of the fastener 7 extending out of the adjustment hole is threadedly connected to a threaded hole provided on the clamping block 4.

[0030] like Figures 1 to 4As shown, countersunk holes 8 are formed on the inner surfaces of the two gripper arms 2 facing each other and located outside the waist hole 6. The length direction of the countersunk holes 8 is arranged along the length direction of the gripper arms 2. The gripping block 4 is partially housed in the countersunk hole 8, and the two side walls of the gripping block 4 are in contact with the two side walls of the countersunk hole 8. In this embodiment, the countersunk hole 8 is located outside the waist hole 6, meaning that the projection of the waist hole 6 onto the plane of the countersunk hole 8 is entirely within the range of the countersunk hole 8. Since the gripping block 4 is partially housed in the countersunk hole 8, and the two side walls of the gripping block 4 are in contact with the two side walls of the countersunk hole 8, the position of the gripping block 4 in the countersunk hole 8 can be defined, thereby positioning the gripping block 4 and preventing the gripping block 4 from shifting in its installation position on the gripper arms 2.

[0031] like Figure 5 As shown, one end of the connecting part 41 is adjustablely connected to the gripper arm 2, and the other end of the connecting part 41 is connected to two clamping parts 42. The two clamping parts 42 are arranged opposite each other to form a positioning space 43. In this embodiment, one end of the connecting part 41 is used for adjustable connection to the gripper arm 2, and the other end of the connecting part 41 is connected to the clamping parts 42. The positioning space 43 formed by the two clamping parts 42 being arranged opposite each other is used to place the PCB board, and the positioning space 43 can play a positioning role in clamping the PCB board.

[0032] like Figure 5 As shown, the positioning space 43 extends towards the connecting part 41 to form a positioning groove 44. The positioning groove 44 increases the contact area between the PCB board and the positioning space 43, ensuring the clamping part 42 firmly clamps the PCB board. It should also be noted that a buffer pad is provided on the side of the positioning groove 44 near the connecting part 41. This buffer pad acts as a cushion, preventing the PCB board from cracking under the clamping force of the two clamping plates.

[0033] like Figure 5 As shown, the two clamping parts 42 have inclined surfaces 45 on their opposite sides, which are inclined towards the center of the positioning space 43. In this embodiment, due to the setting of the inclined surfaces 45, the inclined surfaces 45 play a certain guiding role in the insertion of the PCB into the positioning groove 44, making it easier for the PCB to be smoothly inserted into the positioning groove 44.

[0034] like Figures 1 to 3As shown, the drive assembly 3 includes a drive motor 31, a transmission belt 32, and a driven pulley 33. The drive motor 31 is mounted on the base 1, and a drive pulley 34 is mounted on the output shaft of the drive motor 31. The driven pulley 33 is rotatably mounted on the base 1. The transmission belt 32 is wound around the drive pulley 34 and the driven pulley 33. Two gripper arms 2 are slidably connected to the base 1, and the two gripper arms 2 are respectively connected to the two opposite sides of the transmission belt 32. In this embodiment, the drive motor 31 drives the drive pulley 34 to rotate, and the drive pulley 34 and the driven pulley 33 drive the transmission belt 32 to rotate. Since the two gripper arms 2 are slidably connected to the base 1 and connected to the opposite sides of the transmission belt 32, under the action of the drive motor 31, the two gripper arms 2 can be driven to move in a direction closer to or further away from each other via the transmission belt 32.

[0035] In this embodiment, the guide rail 12 is disposed on the lower surface of the base 1, and there are two sets of guide rail 12. The two sets of guide rail 12 are disposed along the first direction. The gripper arm 2 is located below the base 1, and the end of the gripper arm 2 near the base 1 is connected to the mounting base 14. The mounting base 14 has a U-shaped structure, and the two ends of the mounting base 14 are respectively mounted with sliders 13. The two sliders 13 are slidably connected to the two guide rails 12 respectively. The drive motor 31 is mounted on the upper surface of the base 1, and the output shaft of the drive motor 31 extends from the upper surface of the base 1 to the lower surface of the base 1. The drive wheel 34 is mounted on the output shaft of the drive motor 31 and is located inside the U-shaped structure of the mounting base 14. The driven wheel 33 is located inside the U-shaped structure of another mounting base 14 connected to the gripper arm 2. The two gripper arms 2 are connected to the opposite sides of the transmission belt 32 through the mounting base 14, that is, one mounting base 14 is connected to the straight section of one side of the transmission belt 32, and the other mounting base 14 is connected to the straight section of the opposite side of the transmission belt 32. This allows the two gripper arms to move closer to each other or further away from each other under the action of the transmission belt 32.

[0036] Example 2

[0037] The difference between this embodiment 2 and embodiment 1 is that, Figures 1 to 2As shown, the PCB board clamping device also includes a sensor 9 for detecting the position of the gripper arm 2. The sensor 9 is connected to a controller, which is electrically connected to a drive assembly 3. The sensor 9 is adjustablely mounted on the base 1 along a first direction. In this embodiment, the position of the sensor 9 can be determined according to the width of the PCB board, i.e., the lateral distance of the clamping space 5 formed between the two clamping blocks 4. The lateral distance between the two sensors 9 is approximately equal to the width of the PCB board. When the sensor 9 senses the position of the gripper arm 2, it transmits the sensed signal to the controller. The controller then instructs the drive assembly 3 to stop moving, preventing excessive movement of the gripper arm 2 from squeezing the PCB board and causing damage. It should be noted that multiple connection holes can be provided on the base 1 along the first direction. According to the clamping width of the PCB board, the sensor 9 can be installed in the appropriate connection holes using fastening connectors, thereby achieving adjustable installation of the sensor 9.

[0038] like Figures 1 to 2 As shown, a component to be tested 10 is provided at the sliding connection between the gripper arm 2 and the base 1. The component to be tested 10 extends towards the sensor 9, and the sensor 9 has a detection notch 11 for the component to be tested 10 to pass through. In this embodiment, as the gripper arm 2 moves under the action of the drive assembly 3, the gripper arm 2 drives the component to be tested 10 to move. When the component to be tested 10 passes through the detection notch 11 of the sensor 9 and is sensed by the sensor 9, the sensor 9 sends the detected data to the controller. The controller instructs the drive assembly 3 to stop moving to prevent the gripper arm 2 from moving further and squeezing the PCB board, causing damage to the PCB board.

[0039] In this embodiment, the detection notch 11 is formed along the first straight line. When the detection notch 11 faces downward (with the direction of the base plate as a reference), the part to be tested 10 can be vertically inserted into the detection notch 11. When the detection notch 11 faces outward horizontally (with the direction of the base plate as a reference), the part to be tested 10 needs to be bent horizontally before being inserted into the detection notch 11. The position of the detection notch 11 and the shape of the part to be tested 10 can be set as needed.

[0040] Example 3

[0041] The difference between this embodiment 3 and embodiment 1 is that, Figures 1 to 2As shown, a rotating assembly 15 for driving the base 1 to rotate is also connected to the base 1. During operation, after the PCB board reaches the designated position, the gripper arms 2 are driven to move by the driving assembly 3, causing the gripper arms 2 mounted on both sides to move inward until the PCB board is clamped. Then, the base 1 rotates 180° via the rotating assembly 15, and the PCB board also rotates 180° accordingly. Finally, the driving assembly 3 drives the two gripper arms 2 to move in opposite directions, releasing the PCB board and completing the flipping process. It should be noted that the rotating assembly 15 can be a rotary motor or a rotary cylinder; other structures that can achieve the rotation of the base 1 are also within the scope of protection of this embodiment.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A PCB board clamping device, characterized in that: The device includes a base (1), gripper arms (2), and a drive assembly (3). Two gripper arms (2) are arranged opposite to each other. At least one gripper arm (2) is slidably connected to the base (1) along a first direction. The drive assembly (3) is mounted on the base (1) and is connected to the gripper arm (2) slidably connected to the base (1) to drive the gripper arm (2) to move closer to or away from the other gripper arm (2). Clamping blocks (4) are installed on the inner surfaces of the two gripper arms (2) facing each other, and a clamping space (5) is formed between the two opposing clamping blocks (4). The clamping blocks (4) and the gripper arms (2) are adjustablely connected along the length direction of the gripper arms (2).

2. The PCB board clamping device according to claim 1, characterized in that: Two gripper arms (2) have through holes (6) on their opposite inner sides. The length of the holes (6) is arranged along the length of the gripper arms (2). Fasteners (7) are installed in the holes (6). One end of the fasteners (7) that extends out of the holes (6) is threadedly connected to the clamping block (4).

3. The PCB board clamping device according to claim 2, characterized in that: A countersunk hole (8) is provided on the inner side of the two gripper arms (2) opposite to each other and on the outer side of the waist hole (6). The length direction of the countersunk hole (8) is arranged along the length direction of the gripper arm (2). The clamping block (4) is partially housed in the countersunk hole (8). The two side walls of the clamping block (4) are in contact with the two side walls of the countersunk hole (8).

4. The PCB board clamping device according to any one of claims 1 to 3, characterized in that: The clamping block (4) includes a connecting part (41) and a clamping part (42). One end of the connecting part (41) is adjustablely connected to the gripper arm, and the other end of the connecting part (41) is connected to the two clamping parts (42). The two clamping parts (42) are arranged opposite to each other to form a positioning space (43).

5. The PCB board clamping device according to claim 4, characterized in that: The positioning space (43) extends toward the connecting part (41) to form a positioning groove (44).

6. The PCB board clamping device according to claim 4, characterized in that: The two clamping parts (42) have inclined surfaces (45) on their opposite sides, which are inclined towards the center of the positioning space (43).

7. The PCB board clamping device according to claim 1, characterized in that: The drive assembly (3) includes a drive motor (31), a transmission belt (32), and a driven wheel (33). The drive motor (31) is mounted on the base (1). The output shaft of the drive motor (31) is equipped with a drive wheel (34). The driven wheel (33) is rotatably mounted on the base (1). The transmission belt (32) is wound around the drive wheel (34) and the driven wheel (33). The two gripper arms (2) are slidably connected to the base (1) and are respectively connected to the two opposite sides of the transmission belt (32).

8. The PCB board clamping device according to claim 1, characterized in that: The PCB clamping device also includes a sensor (9) for detecting the position of the gripper arm (2). The sensor (9) is connected to a controller, which is electrically connected to the drive assembly (3). The sensor (9) is adjustablely mounted on the base (1) along a first direction.

9. The PCB board clamping device according to claim 8, characterized in that: The gripper arm (2) is provided with a test piece (10) at the sliding connection with the base (1). The test piece (10) extends toward the sensor (9). The sensor (9) has a detection notch (11) for the test piece (10) to pass through.

10. The PCB board clamping device according to claim 1, characterized in that: The base (1) is also connected to a rotating component (15) for driving the base (1) to rotate.

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