Positioning mechanism and handling device

Abstract

This application discloses a positioning mechanism and a handling device. The positioning mechanism is mounted on a frame and includes a drive assembly and at least one pair of clamping assemblies. Both the drive assembly and the two clamping assemblies are arranged on the frame, and the clamping assemblies are adapted to clamp circuit boards. The pair of clamping assemblies are arranged at both ends of the frame along a first direction. Each clamping assembly is connected to the output end of the drive assembly. The drive assembly drives the pair of clamping assemblies to move towards or away from each other, enabling the pair of clamping assemblies to clamp the circuit board on both sides along the first direction. This application achieves positioning of circuit boards of different sizes in the first direction by moving the clamping assemblies with the drive assembly. This ensures accurate positioning of circuit boards of different sizes during transfer and handling, avoiding subsequent process coordinate deviations caused by inaccurate positioning, thereby improving the accuracy and stability of the overall processing and effectively enhancing the processing quality of the circuit boards.

Description

Technical Field

[0001] This application belongs to the field of circuit board processing technology, and in particular relates to a positioning mechanism and a handling device. Background Technology

[0002] In the manufacturing process of PCBs (Printed Circuit Boards), the transfer and handling stage plays a crucial role in the overall processing accuracy of the equipment. To ensure the accuracy and stability of the processing, PCBs need to be precisely positioned during transfer and handling to ensure coordinate alignment for subsequent processes such as inkjet printing and drilling, thereby improving the overall processing quality.

[0003] In existing technologies, positioning for PCB transfer and handling mostly uses fixed-specification positioning devices to constrain the PCB, which makes it difficult to effectively position PCBs of different sizes. Utility Model Content

[0004] The technical problem to be solved by this application is that, in the existing technology, the positioning of PCB transfer and handling mostly adopts fixed-specification positioning devices to constrain the PCB, which makes it difficult to achieve effective positioning of PCBs of different sizes. This application provides a positioning mechanism and a handling device.

[0005] To address the aforementioned issues, one embodiment of this application provides a positioning mechanism mounted on a frame, comprising a drive assembly and at least a pair of clamping assemblies, wherein both the drive assembly and the clamping assemblies are arranged on the frame, and the clamping assemblies are adapted to clamp circuit boards;

[0006] A pair of clamping assemblies are arranged at both ends of the frame along a first direction. Each clamping assembly is connected to the output end of the drive assembly. The drive assembly is used to drive the pair of clamping assemblies to move towards or away from each other, so that the pair of clamping assemblies can clamp the two ends of the circuit board along the first direction.

[0007] Optionally, the clamping assembly includes a connecting frame, a first clamping member, and a second clamping member. The connecting frame is arranged on the frame and connected to the output end of the drive assembly. The first clamping member and the second clamping member are arranged at intervals along a second direction on the connecting frame so that the first clamping member and the second clamping member can clamp the circuit board. The first direction intersects the second direction.

[0008] Optionally, along the second direction, at least one of the first clamping member and the second clamping member can reciprocate, so that the first clamping member and the second clamping member can approach each other to clamp the circuit board.

[0009] Optionally, the connecting frame is provided with a first power component, and the first clamping component is connected to the output end of the first power component. The first power component is used to drive the first clamping component to reciprocate along the second direction so that the first clamping component and the second clamping component clamp the circuit board.

[0010] Optionally, the connecting frame is provided with a mounting base, the mounting base is connected to the output end of the first power component, the first clamping component is arranged on the mounting base, and the first power component is used to drive the mounting base and the first clamping component to reciprocate along the second direction.

[0011] Optionally, the mounting base is provided with a second power component, and the first clamping member is connected to the output end of the second power component. The second power component is used to drive the first clamping member to reciprocate along the second direction.

[0012] Optionally, the connecting frame is further provided with an adsorption component, which can adsorb the circuit board when the first clamping member and the second clamping member clamp the circuit board.

[0013] Optionally, the connecting frame includes a first connecting seat, a second connecting seat, and a buffer. The first connecting seat and the second connecting seat are arranged at intervals along the second direction. The first clamping member and the second clamping member are both arranged on the first connecting seat. The second connecting seat is connected to the output end of the driving component. The buffer is connected between the first connecting seat and the second connecting seat.

[0014] Optionally, the drive assembly includes a drive member and a connector. The drive member is disposed on the frame, the connector is connected to the output end of the drive member, and the clamping assembly is connected to the connector. The drive member drives the connector to move, causing a pair of clamping assemblies to move towards or away from each other.

[0015] Optionally, the connector includes a screw, the frame is provided with a support, the screw extends along the first direction, one end of the screw is connected to the output end of the drive member, the other end of the screw is rotatably mounted on the support, the clamping assembly is connected to the screw, and the drive member can cause a pair of clamping assemblies to move towards or away from each other by driving the screw to rotate.

[0016] Optionally, the screw has a first threaded segment and a second threaded segment with opposite directions of rotation, the first threaded segment and the second threaded segment being arranged sequentially along the first direction, one of the pair of clamping assemblies being threadedly connected to the first threaded segment and the other threadedly connected to the second threaded segment, the driving member being able to drive the screw to rotate, so that the pair of clamping assemblies move toward or away from each other.

[0017] According to the positioning mechanism provided in this application embodiment, when a circuit board needs to be positioned, the driving component starts working, which can drive a pair of clamping components to move towards each other or away from each other. When moving towards each other, the distance between the pair of clamping components gradually decreases, thereby clamping the circuit board on both sides along the first direction; when moving away from each other, the distance between the pair of clamping components gradually increases, facilitating the removal of the positioned circuit board or the placement of a new circuit board for positioning operations. By driving the clamping components to move, effective positioning of circuit boards of different sizes in the first direction is achieved. This ensures accurate positioning of circuit boards of different sizes during transfer and handling, avoiding subsequent process coordinate deviations caused by inaccurate positioning, thereby improving the accuracy and stability of the overall processing and effectively enhancing the processing quality of the circuit boards.

[0018] This application provides a handling device including a robot, a frame, and the aforementioned positioning mechanism. The positioning mechanism is mounted on the frame, and the frame is connected to the output end of the robot. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a positioning mechanism for preparing to clamp a circuit board provided in one embodiment of this application;

[0021] Figure 2 This is a first-view structural schematic diagram of the positioning mechanism provided in one embodiment of this application;

[0022] Figure 3 This is a second-view structural schematic diagram of the positioning mechanism provided in one embodiment of this application.

[0023] The reference numerals in the accompanying drawings are as follows:

[0024] 1. Frame; 2. Clamping assembly; 21. Connecting frame; 211. First connecting seat; 212. Second connecting seat; 213. Buffer; 22. First clamping component; 23. Second clamping component; 3. Drive assembly; 31. Drive component; 32. Connecting component; 321. Screw; 3211. First threaded section; 3212. Second threaded section; 4. Circuit board; 5. First power component; 6. Mounting base; 8. Adsorption assembly; 81. Adsorption component; 9. Guide rail; 10. Support. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] In the description of this application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] like Figures 1 to 3 As shown, one embodiment of this application provides a positioning mechanism installed on a frame 1, including a drive assembly 3 and at least a pair of clamping assemblies 2. The drive assembly 3 and the clamping assemblies 2 are both arranged on the frame 1, and the clamping assemblies 2 are adapted to clamp the circuit board 4.

[0029] A pair of clamping components 2 are arranged at both ends of the frame 1 along a first direction. Each clamping component 2 is connected to the output end of a drive component 3. The drive component 3 drives the pair of clamping components 2 to move towards or away from each other, enabling the pair of clamping components 2 to clamp the circuit board 4 on both sides along the first direction. In this embodiment, the pair of clamping components 2 includes two clamping components 2. The positioning mechanism of this embodiment may include a pair of clamping components 2 or multiple pairs of clamping components 2. When the positioning mechanism includes multiple pairs of clamping components 2, the drive component 3 may be configured to synchronously drive the movement of all pairs of clamping components 2, or it may be configured to control the movement of a pair of clamping components 2 with one drive component 3. For example, when there are two pairs of clamping components 2 and two drive components 3, one drive component 3 drives one pair of clamping components 2, and both pairs of clamping components 2 are arranged at both ends of the frame 1 along the first direction. That is, there are two pairs of clamping components 2, totaling four. Two clamping components 2 are provided at each end of the frame 1 along the first direction. When clamping the circuit board 4, each side of the circuit board 4 along the first direction is clamped by two clamping components 2. The first direction is the left-right direction; or, the first direction is the adjacent direction. Figure 2In the X direction. When the clamping components 2 are a pair, it is understood that the drive component 3 of this embodiment can independently control the movement of the two clamping components 2. One feasible solution is: the drive component 3 includes two drive units, each corresponding to one of the two clamping components 2. The movement of the two clamping components 2 is independently controlled by the two drive units to achieve clamping of circuit boards 4 of different sizes. For example, the drive component 3 includes two sets of motor-screw 321 or cylinders, each set of motor-screw 321 or cylinders controls one clamping component 2, achieving independent control of the two clamping components 2. Alternatively, the drive component 3 of this embodiment can synchronously control the movement of the two clamping components 2, ensuring that the two clamping components 2 move towards or away from each other with the same speed and displacement. For example, the drive component 3 includes a motor-screw 321 or motor-conveyor belt structure, and the synchronous movement of the two clamping components 2 is controlled by a set of motor-screw 321 or motor-conveyor belt to achieve clamping of circuit boards 4 of different sizes. The driving component 3 can drive the two clamping components 2 to move towards or away from each other, allowing the positioning mechanism to flexibly adjust the distance between the two clamping components 2 according to the actual size of the circuit board 4. When facing a smaller circuit board 4, the driving component 3 can drive the two clamping components 2 to move towards each other, accurately clamping the circuit board 4 on both sides along the first direction; while for a larger circuit board 4, the driving component 3 drives the two clamping components 2 to move away from each other, widening the distance to achieve stable clamping of the larger circuit board 4. Compared with traditional fixed-specification positioning devices, this positioning mechanism does not require hardware replacement. It can quickly adapt to circuit boards 4 of various sizes and specifications simply by adjusting the driving component 3, greatly improving the versatility and wide applicability of the positioning mechanism, and reducing the cost for enterprises to replace positioning equipment due to changes in the size of the circuit board 4. In addition, the possibility that only one of the two clamping components 2 can move along the first direction is also within the scope of protection of this embodiment.

[0030] Please see Figures 1 to 3 In one embodiment, the clamping assembly 2 includes a connecting frame 21, a first clamping member 22, and a second clamping member 23. The connecting frame 21 is arranged on the frame 1 and connected to the output end of the drive assembly 3. The first clamping member 22 and the second clamping member 23 are arranged at intervals along a second direction on the connecting frame 21 so that the first clamping member 22 and the second clamping member 23 can clamp the circuit board 4; wherein, the first direction and the second direction intersect. In this embodiment, the second direction is the vertical direction (the thickness direction of the circuit board 4); or, the second direction is the horizontal direction. Figure 2In the Z-direction, the first direction is perpendicular to the second direction. When the circuit board 4 is placed between the clamping components 2, the two clamping forces along the second direction form a stable constraint, effectively limiting the movement of the circuit board 4 in this direction. Compared with the traditional single-sided vacuum adsorption method, the method of setting two clamping components to clamp the circuit board 4 can better cope with the external force interference, such as vibration and inertial force, that the circuit board 4 is subjected to during the handling process, ensuring that the circuit board 4 maintains accurate positioning throughout the handling process, reducing the production error rate caused by positioning deviation, and providing a high-precision foundation for subsequent processing procedures.

[0031] In one embodiment, at least one of the first clamping member 22 and the second clamping member 23 can reciprocate along the second direction, allowing them to approach each other to clamp the circuit board 4. In this embodiment, at least one of the first clamping member 22 and the second clamping member 23 can reciprocate along the second direction, allowing the clamping distance of the clamping assembly 2 in the second direction to be flexibly adjusted. Therefore, the positioning mechanism of this embodiment can not only handle circuit boards 4 of different sizes in the first direction, but also further adapt to circuit boards 4 with large size differences in the second direction, greatly expanding the compatibility of the positioning mechanism with the size specifications of the circuit board 4, reducing the need to replace the positioning mechanism due to the special size of the circuit board 4, and reducing production costs. The structure driving the first clamping member 22 or the second clamping member 23 to move is not limited in this embodiment and can be a motor-lead screw, cylinder, linear motor, or gear rack structure, etc.

[0032] Please see Figure 1 and Figure 2 In one embodiment, a first power component 5 is provided on the connecting frame 21, and a first clamping component 22 is connected to the output end of the first power component 5. The first power component 5 is used to drive the first clamping component 22 to reciprocate along a second direction, so that the first clamping component 22 and the second clamping component 23 clamp the circuit board 4. In this embodiment, the first power component 5 can precisely control the moving distance and speed of the first clamping component 22 along the second direction. According to the size specifications of different circuit boards 4 in the second direction (the thickness direction of the circuit board 4), the distance between the first clamping component 22 and the second clamping component 23 can be quickly and accurately adjusted to achieve clamping of circuit boards 4 of different thicknesses. This ensures accurate positioning of circuit boards 4 of different thicknesses during the transfer and handling process, avoids subsequent process coordinate deviations caused by inaccurate positioning, and thus improves the accuracy and stability of the overall processing process, effectively improving the processing quality of the circuit board 4. In this embodiment, the first power component 5 is a cylinder, the cylinder body is fixed on the connecting frame 21, and the piston rod of the cylinder is connected to the first clamping component 22. In other embodiments, the first power component 5 is a linear motor, the housing of which is fixed on the connecting frame 21, and the output shaft of the linear motor is connected to the first clamping component 22.

[0033] Please see Figures 1 to 3 In one embodiment, a mounting base 6 is provided on the connecting frame 21. The mounting base 6 is connected to the output end of the first power member 5. The first clamping member 22 is arranged on the mounting base 6. The first power member 5 is used to drive the mounting base 6 and the first clamping member 22 to reciprocate along the second direction. In this embodiment, the first power member 5 drives the mounting base 6 and the first clamping member 22 to move as a whole, making the position adjustment of the first clamping member 22 in the second direction more flexible. The mounting base 6 can integrate various auxiliary structures, such as guide devices and buffer devices. One feasible guide device is a guide rod provided on the connecting frame 21, with the mounting base 6 slidably connected to the guide rod. The guide device can further enhance the straightness and stability of the first clamping member 22 during movement, ensuring clamping accuracy; the buffer device can play a buffering role when the first clamping member 22 contacts the PCB, realizing flexible clamping. Faced with PCBs of different thicknesses, shapes and surface structures, the auxiliary structure on the mounting base 6, in conjunction with the precise control of the first power component 5, can finely adjust the moving speed, force and position of the first clamping component 22, so that the clamping assembly 2 can adapt to various complex production conditions and meet diverse PCB clamping needs.

[0034] In one embodiment, a second power component (not shown in the figure) is provided on the mounting base 6. The first clamping component 22 is connected to the output end of the second power component, which drives the first clamping component 22 to reciprocate along a second direction. In this embodiment, the mounting base 6 is moved as a whole by the first power component 5 to achieve a large range of spacing adjustments. Then, the first clamping component 22 is finely adjusted by the second power component, forming a hierarchical control mode. When facing circuit boards 4 of different sizes, the first power component 5 first moves the mounting base 6 quickly to the approximate position to reduce the gap with the target spacing. Then, the second power component drives the first clamping component 22 to make a slight movement with higher precision to accurately match the size of the circuit board 4 and ensure that the clamping spacing error is minimal. Compared with a single power component drive, the hierarchical control method of the first clamping component 22 in this embodiment can significantly improve the clamping accuracy, reduce problems such as component misalignment caused by clamping deviation, and improve product quality. In this embodiment, the second power component is a cylinder. The cylinder body is fixed on the mounting base 6, and the piston rod of the cylinder is connected to the first clamping component 22. In other embodiments, the second power component is a linear motor, the housing of which is fixed on the mounting base 6, and the output shaft of the linear motor is connected to the first clamping component 22.

[0035] Please see Figures 1 to 3In one embodiment, the connecting frame 21 is further provided with an adsorption component 8. When the first clamping member 22 and the second clamping member 23 clamp the circuit board 4, the adsorption component 8 can adsorb the circuit board 4. In this embodiment, after the first clamping member 22 and the second clamping member 23 complete the clamping of the circuit board 4, the adsorption component 8 is immediately activated, forming an additional fixing force on the surface of the circuit board 4 through vacuum adsorption or magnetic adsorption. Through multi-dimensional fixing modes, it can effectively resist interference such as vibration and inertial forces generated during the handling process. For example, when transplanting or when the robotic arm turns quickly, even if the clamping member is subjected to an instantaneous external force impact, the adsorption component 8 can maintain the stability of the circuit board 4, prevent it from shifting or flipping, and ensure that the circuit board 4 maintains accurate positioning throughout the handling process, greatly reducing the production error rate caused by position changes.

[0036] Please see Figures 1 to 3 In one embodiment, there are multiple first clamping members 22 and multiple second clamping members 23, with each first clamping member 22 corresponding to one second clamping member 23. In this embodiment, multiple first clamping members 22 and second clamping members 23 are arranged in pairs along the second direction, which can clamp the circuit board 4 from multiple points along the second direction. Compared with a single clamping member, this provides a more uniform and stronger clamping force, effectively restricting the movement of the circuit board 4 in the second direction. This improves the accuracy and stability of the overall processing and effectively enhances the processing quality of the circuit board.

[0037] In one embodiment, the adsorption assembly 8 includes multiple sets of adsorption elements 81, which are arranged alternately with multiple second clamping elements 23 along a third direction; wherein the first direction, the second direction, and the third direction intersect each other but are not coplanar. In this embodiment, each set of adsorption elements 81 includes multiple suction cups arranged sequentially along the third direction. The third direction is the front-back direction, or the third direction is the attachment direction. Figure 2 In the Z-direction, multiple sets of adsorption elements 81 and the second clamping element 23 are staggered along the third direction, so that the adsorption force forms a three-dimensional distribution on the surface of the circuit board 4. After the first clamping element 22 and the second clamping element 23 are fixed in the horizontal direction, the adsorption element 81 provides adsorption force from the vertical direction. The three work together to constrain the circuit board 4 in all directions from three mutually perpendicular dimensions. During the handling process, the circuit board 4 can remain stable regardless of whether it is subjected to horizontal vibration, inertial force, or vertical shaking, which greatly improves the stability and reliability of positioning and effectively avoids processing errors and product damage caused by the displacement of the circuit board 4.

[0038] Please see Figures 1 to 3In one embodiment, the connecting frame 21 includes a first connecting seat 211, a second connecting seat 212, and a buffer 213. The first connecting seat 211 and the second connecting seat 212 are arranged at intervals along a second direction. The first clamping member 22 and the second clamping member 23 are both arranged on the first connecting seat 211. The second connecting seat 212 is connected to the output end of the drive assembly 3. The buffer 213 is connected between the first connecting seat 211 and the second connecting seat 212. In this embodiment, a guide rod is provided on the second connecting seat 212. The first connecting seat 211 is slidably connected to the guide rod. The buffer 213 can be a spring, which is sleeved on the guide rod. The two ends of the spring abut against the first connecting seat 211 and the second connecting seat 212, respectively. When the drive assembly 3 malfunctions (such as motor failure leading to excessive driving force), encounters a sudden strong external impact during transportation, or when the clamping assembly 2 clamps a PCB with abnormal dimensions, the pressure in the system will rise sharply. At this time, the overpressure protection function of the buffer 213 will play a crucial role. When overvoltage occurs, the spring will further compress to absorb energy, preventing excessive force from acting directly on the circuit board 4. This effectively prevents damage to the circuit board 4 such as component detachment and circuit breakage due to overvoltage, while also protecting equipment components such as the drive assembly 3 and clamping parts, reducing equipment failures and maintenance costs caused by overvoltage.

[0039] Please see Figure 1 and Figure 2 In one embodiment, the drive assembly 3 includes a drive member 31 and a connector 32. The drive member 31 is mounted on the frame 1, and the connector 32 is connected to the output end of the drive member 31. The clamping assembly 2 is connected to the connector 31. The drive member 31 drives the connector 32 to move, causing a pair of clamping assemblies 2 to move towards or away from each other. In this embodiment, the connector is a transmission component between the drive assembly 3 and the clamping assembly 2, and its function is to transmit the power of the drive member 31 to the clamping assembly 2, thereby realizing the movement of the clamping assemblies towards or away from each other. The connector 32 can be a screw 321. The drive member 31 (such as a motor) drives the screw to rotate by rotation, and the nut on the screw is connected to the clamping assembly 2. When the screw 321 rotates, the nut moves along the axial direction of the screw, thereby driving the clamping assembly 2 to move in a first direction. The connecting component 32 can also be a belt-pulley structure. The driving component 31 (such as a motor) drives the driving wheel to rotate, and the driving wheel drives the driven wheel to rotate via a belt. The shaft of the driven wheel is connected to the clamping assembly 2, thereby realizing the movement of the clamping assembly 2. By controlling the movement of a pair of clamping assemblies 2 in opposite directions through the driving component 3, the spacing between the clamping assemblies can be flexibly adjusted according to the actual size of the circuit board 4. Whether the circuit board 4 is small or large, precise clamping can be achieved without replacing hardware, greatly improving the versatility and applicability of the positioning mechanism.

[0040] In one embodiment, the connector 32 includes a screw 321, the frame 1 is provided with a support 10, the screw 321 extends along a first direction, one end of the screw 321 is connected to the output end of the drive member 31, and the other end of the screw 321 is rotatably mounted on the support 10. Clamping components 2 are connected to the screw 321. The drive member 31 drives the screw 321 to rotate, enabling a pair of clamping components 2 to move towards or away from each other. In this embodiment, the screw 321 can be configured with two threaded segments with opposite directions of rotation. A pair of clamping components 2 are threadedly connected to the two threaded segments. Rotating the screw 321 enables the two clamping components 2 to move towards or away from each other. Alternatively, the screw 321 can be configured with two parallel sub-screws. The two clamping components 2 in a pair are threadedly connected to the two sub-screws one-to-one. Rotation of the two sub-screws enables the pair of clamping components 2 to move towards or away from each other. By controlling the movement of a pair of clamping components 2 towards or away from each other using the drive component 3, the spacing between the clamping components can be flexibly adjusted according to the actual size of the circuit board 4. Precise clamping can be achieved for both small and large circuit boards 4 without the need for hardware replacement, greatly improving the versatility and applicability of the positioning mechanism.

[0041] In one embodiment, the screw 321 has a first threaded section 3211 and a first threaded section 3212 with opposite directions of rotation. The first threaded sections 3211 and 3212 are arranged sequentially along a first direction. One of the pair of clamping assemblies is threadedly connected to the first threaded section 3211, and the other is threadedly connected to the first threaded section 3212. The driving member 31 can drive the screw 321 to rotate, causing the pair of clamping assemblies 2 to move towards or away from each other. In this embodiment, when the driving member 31 drives the screw 321 to rotate, since the first threaded sections 3211 and 3212 of the screw 321 have opposite directions of rotation, the two clamping assemblies 2, which are threadedly connected to the two threaded sections respectively, will move towards or away from each other simultaneously and at the same speed. This ensures that the clamping force on both sides of the circuit board 4 remains balanced during the clamping process, preventing the circuit board 4 from shifting or twisting due to inconsistent clamping speeds or forces on both sides. Whether clamping a small or large circuit board 4, the two clamping components 2 can precisely and synchronously adjust their spacing to ensure that the circuit board 4 is stably and reliably fixed. This provides a precise positioning basis for subsequent handling and processing steps, effectively reducing production errors caused by unstable clamping. Simultaneously, the movement of the clamping components 2 is achieved through threaded transmission, eliminating the need for complex linkages, belts, and other transmission mechanisms, resulting in a simple and compact overall structure. In practical applications, this effectively reduces the space occupied by the positioning mechanism, facilitating its integration into various PCB transfer and handling equipment.

[0042] Please see Figure 2In one embodiment, a guide rail 9 is provided on the frame 1, extending along a first direction, and a connecting frame 21 is slidably connected to the guide rail 9. In this embodiment, the guide rail 9 extends along the first direction, and the connecting frame 21 is slidably connected to the guide rail 9, providing precise guidance for the movement of the clamping assembly 2 along the first direction. Under the action of the driving assembly 3, the connecting frame 21 can move strictly according to the first direction, avoiding deviation, shaking, etc., ensuring that the two clamping assemblies 2 always maintain the correct movement trajectory, thereby achieving precise clamping and positioning of the circuit board 4 on both sides along the first direction, improving the accuracy and stability of positioning.

[0043] According to the positioning mechanism provided in this application embodiment, when the circuit board 4 needs to be positioned, the driving component 3 starts to work, which can drive a pair of clamping components 2 to move towards each other or away from each other. When moving towards each other, the distance between the pair of clamping components 2 gradually decreases, thereby clamping the circuit board 4 on both sides along the first direction; when moving away from each other, the distance between the pair of clamping components 2 gradually increases, making it easier to remove the positioned circuit board 4 or put in a new circuit board 4 for positioning operations. By driving the clamping components 2 to move through the driving component 3, effective positioning of circuit boards 4 of different sizes in the first direction is achieved. This ensures accurate positioning of circuit boards 4 of different sizes during the transfer and handling process, avoiding subsequent process coordinate deviations caused by inaccurate positioning, thereby improving the accuracy and stability of the overall processing process and effectively improving the processing quality of the circuit board 4.

[0044] This application provides a handling device including a robot, a frame 1, and the aforementioned positioning mechanism. The positioning mechanism is mounted on the frame 1, and the frame 1 is connected to the output end of the robot. In this embodiment, because the positioning mechanism can adapt to circuit boards 4 of different sizes and shapes, when combined with the robot to form a handling device, this handling device can handle the handling tasks of various types of circuit boards 4. Whether it is a circuit board 4 of a standard size or a circuit board 4 with a large size difference, it can be accurately positioned and stably clamped by the positioning mechanism, and then the robot completes the handling. This greatly improves the versatility and applicability of the handling device, reduces the need to change handling equipment due to different specifications of circuit boards 4, and reduces production costs.

[0045] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A positioning mechanism mounted to a rack, characterized by, The device includes a drive assembly and at least one pair of clamping assemblies, both of which are arranged in the frame, and the clamping assemblies are adapted to clamp circuit boards. A pair of clamping assemblies are arranged at both ends of the frame along a first direction. Each clamping assembly is connected to the output end of the drive assembly. The drive assembly is used to drive the pair of clamping assemblies to move towards or away from each other, so that the pair of clamping assemblies can clamp the two ends of the circuit board along the first direction.

2. The positioning mechanism according to claim 1, characterized in that, The clamping assembly includes a connecting frame, a first clamping member, and a second clamping member. The connecting frame is arranged on the frame and connected to the output end of the drive assembly. The first clamping member and the second clamping member are arranged at intervals along a second direction on the connecting frame so that the first clamping member and the second clamping member can clamp the circuit board. The first direction intersects the second direction.

3. The positioning mechanism according to claim 2, characterized in that, Along the second direction, at least one of the first clamping member and the second clamping member can reciprocate, so that the first clamping member and the second clamping member can approach each other to clamp the circuit board.

4. The positioning mechanism according to claim 2, characterized in that, The connecting frame is provided with a first power component, and the first clamping component is connected to the output end of the first power component. The first power component is used to drive the first clamping component to reciprocate along the second direction so that the first clamping component and the second clamping component clamp the circuit board.

5. The positioning mechanism according to claim 4, characterized in that, The connecting frame is provided with a mounting base, which is connected to the output end of the first power component. The first clamping component is arranged on the mounting base, and the first power component is used to drive the mounting base and the first clamping component to reciprocate along the second direction.

6. The positioning mechanism according to claim 5, characterized in that, The mounting base is provided with a second power component, and the first clamping member is connected to the output end of the second power component. The second power component is used to drive the first clamping member to reciprocate along the second direction.

7. The positioning mechanism according to claim 2, characterized in that, The connecting frame is also provided with an adsorption component. When the first clamping member and the second clamping member clamp the circuit board, the adsorption component can adsorb the circuit board.

8. The positioning mechanism according to claim 2, characterized in that, The connecting frame includes a first connecting seat, a second connecting seat, and a buffer. The first connecting seat and the second connecting seat are arranged at intervals along the second direction. The first clamping member and the second clamping member are both arranged on the first connecting seat. The second connecting seat is connected to the output end of the driving component. The buffer is connected between the first connecting seat and the second connecting seat.

9. The positioning mechanism according to claim 1, characterized in that, The drive assembly includes a drive component and a connector. The drive component is disposed on the frame, and the connector is connected to the output end of the drive component. The clamping assembly is connected to the connector. The drive component drives the connector to move, causing a pair of clamping assemblies to move towards or away from each other.

10. The positioning mechanism according to claim 9, characterized in that, The connector includes a screw, the frame is provided with a support, the screw extends along the first direction, one end of the screw is connected to the output end of the drive member, the other end of the screw is rotatably mounted on the support, the clamping assembly is connected to the screw, and the drive member can cause a pair of clamping assemblies to move towards or away from each other by driving the screw to rotate.

11. The positioning mechanism according to claim 10, characterized in that, The screw has a first threaded section and a second threaded section with opposite directions of rotation. The first threaded section and the second threaded section are arranged sequentially along the first direction. One of the pair of clamping assemblies is threadedly connected to the first threaded section, and the other is threadedly connected to the second threaded section. The driving member can drive the screw to rotate, so that the pair of clamping assemblies move towards or away from each other.

12. A conveying device, characterized in that, The system includes a robot, a frame, and a positioning mechanism as described in any one of claims 1 to 11, wherein the positioning mechanism is mounted on the frame, and the frame is connected to the output end of the robot.

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