Tray zero-point positioning clamping device

Abstract

The utility model relates to a tray zero-point positioning and clamping device, and relates to the technical field of tray positioning and clamping, the tray zero-point positioning and clamping device comprises a clamping seat, a rotation assembly and a clamping assembly, the rotation assembly is installed at the upper end of the clamping seat, the clamping seat is connected with a truss through the rotation assembly, the clamping assembly comprises a clamping jaw driving structure and a clamping jaw, and the clamping jaw driving structure is connected with the clamping jaw. The clamping jaw driving structure is mounted on the clamping seat, the clamping jaw is mounted on the clamping seat through the clamping jaw driving structure, the clamping jaw driving structure is used for driving the clamping jaw to move, and a zero-point positioning device is mounted on the clamping jaw. The positioning and clamping device has the effect of further improving the use flexibility of the positioning and clamping device.

Description

Technical Field

[0001] This application relates to the field of pallet positioning and clamping technology, and in particular to a pallet zero-point positioning and clamping device. Background Technology

[0002] Pallet zero-point positioning and clamping devices are widely used in precision manufacturing and assembly processes, especially in the automotive, aerospace, and electronics industries. These devices ensure high-precision positioning and fixation of workpieces during machining, measurement, or assembly by providing a repeatable positioning reference point (i.e., the "zero point"). This not only improves production efficiency but also significantly enhances product quality and reduces time wasted due to repeated adjustments. However, with the diversification of market demands and technological advancements, the requirements for positioning and clamping devices are becoming increasingly stringent, particularly regarding their adaptability and flexibility. In existing technologies, common methods for achieving rapid workpiece positioning and clamping include using manually adjustable threaded clamps, pneumatic or hydraulically driven clamping systems, and robotic arms with preset positions. While these traditional methods can meet basic positioning needs to a certain extent, they fall short when dealing with workpieces of different sizes and shapes. For example, manually adjustable thread clamps require operators to frequently adjust the position of the grippers, which is time-consuming and labor-intensive; while pneumatic or hydraulically driven clamping systems are limited by a fixed stroke range and cannot flexibly adapt to workpieces of various sizes; in addition, some robotic arms, although highly automated, are expensive and complex to maintain, making them unsuitable for all applications. Despite the unique characteristics of each method, they all share a common problem: difficulty in effectively adjusting the gripper position to accommodate pallets of different sizes. This limitation significantly restricts the practical application of existing positioning and clamping devices, especially in situations involving multi-variety, small-batch production, where the flexibility and adaptability of the equipment are paramount. Utility Model Content

[0003] To further improve the flexibility of the positioning and clamping device during use, this application provides a pallet zero-point positioning and clamping device.

[0004] The pallet zero-point positioning and clamping device provided in this application adopts the following technical solution:

[0005] A pallet zero-point positioning clamping device includes a clamping base, a rotating assembly, and a clamping assembly. The rotating assembly is mounted on the upper end of the clamping base, and the clamping base is connected to a frame via the rotating assembly. The clamping assembly includes a jaw drive structure and a jaw. The jaw drive structure is mounted on the clamping base, and the jaw is mounted on the clamping base via the jaw drive structure. The jaw drive structure is used to drive the jaw to move, and a zero-point positioning device is mounted on the jaw.

[0006] By adopting the above technical solution, the pallet zero-point positioning clamping device can provide high-precision, rapid positioning and fixing functions in precision manufacturing and assembly processes. Utilizing the design of the clamping base, rotating assembly, and clamping assembly, the device ensures consistent positioning accuracy of the workpiece during repeated installation and removal, thereby significantly improving production efficiency and product quality. In particular, the zero-point positioning device on the grippers further enhances the device's reliability and stability, making it suitable for various applications requiring high-precision positioning.

[0007] In one specific implementation, the clamping drive structure is provided in two sets, and the two sets of clamping drive structures are installed on both sides of the clamping seat.

[0008] By adopting the above technical solution, and installing two sets of clamping drive structures on both sides of the clamping seat, the working stability of the clamping device can be effectively improved, ensuring uniform force distribution in both directions and preventing skewing or instability caused by excessive force on one side. This, in turn, improves the positioning accuracy and clamping reliability of the workpiece. Furthermore, the dual-sided clamping drive structures can adapt to pallets of different sizes and shapes, enhancing the applicability and flexibility of the device.

[0009] In one specific implementation, the gripper drive structure is provided in two sets, and the gripper is provided in two for each set of gripper drive structures, with the two grippers respectively installed at both ends of the gripper drive structure.

[0010] By adopting the above technical solution and setting two sets of gripper drive structures, each gripper can be controlled independently, improving the adaptability and accuracy of clamping. Each gripper drive structure is equipped with two grippers, which are respectively installed at both ends of the gripper drive structure. This allows clamping force to be applied simultaneously at different positions, ensuring the stability and reliability of the workpiece in multiple directions. The simultaneous action of multiple grippers can also better handle pallets of different shapes and sizes, improving the applicability and flexibility of the entire device.

[0011] In one specific implementation, a reinforcing rib is also included, with its two ends connected to two grippers located on the same side of the gripper.

[0012] By adopting the above technical solution, the two ends of the reinforcing rib are respectively connected to the two jaws located on the same side of the clamping seat, which enhances the structural stability between the jaws and prevents the jaws from deforming or shifting under clamping force, thereby improving the overall rigidity and reliability of the clamping device. This not only helps to improve the positioning accuracy of the workpiece, but also extends the service life of the clamping device.

[0013] In one specific implementation, the gripper drive structure includes a bidirectional drive motor, a drive screw, and a limiting block. The bidirectional drive motor is mounted on the gripping seat. There are two drive screws and two limiting blocks. The two drive screws are respectively mounted on the output shafts at both ends of the bidirectional drive motor. The limiting block is mounted on the gripper and is driven by the drive screw to realize synchronous reverse movement of the two grippers. A slider is mounted on the gripper, and a slide rail is mounted on the gripping seat. The slider is slidably connected to the slide rail.

[0014] By adopting the above technical solution, the combined design of the bidirectional drive motor, drive screw, and limit block achieves precise control of the grippers, ensuring that the two grippers can move synchronously in opposite directions, thus improving the working stability and reliability of the clamping device. At the same time, the design of the slider and slide rail ensures that the grippers remain smooth and accurate during movement, further enhancing positioning accuracy and work efficiency.

[0015] In one specific implementation, the slide rail is mounted on the lower end face of the clamping seat, and the slider is mounted on the upper end of the gripper.

[0016] By adopting the above technical solution, the slide rail is installed on the lower end face of the clamping seat, and the slider is installed at the upper end of the gripper, enabling the gripper to slide smoothly on the slide rail, effectively reducing friction and improving the movement accuracy and stability of the gripper. At the same time, this design also simplifies the mechanical structure, reduces manufacturing costs, and improves the overall reliability and service life of the device.

[0017] In one specific implementation, the slide rail is mounted on the upper surface of the clamping seat, the upper part of the gripper has a through-slot, the slider is mounted on the upper surface of the through-slot, and the slider is slidably connected to the slide rail, so that the structure of the mounting seat can pass through the through-slot.

[0018] By adopting the above technical solution, the sliding of the gripper on the slide rail is more stable and reliable, improving the overall stability and reliability of the clamping device. Meanwhile, since the slide rail is mounted on the upper surface of the clamping seat, and the upper part of the gripper has a through-slot, the structure of the mounting seat can pass through the through-slot. This not only simplifies the installation process but also increases the compactness of the device, reduces space occupation, and further improves work efficiency and ease of operation.

[0019] In one specific implementation, a limiting block is also included, on which a limiting groove is formed. The limiting block is mounted on a clamping seat near one end of the drive screw adjacent to the bidirectional drive motor. The drive screw passes through the limiting groove and is rotatable relative to the limiting block.

[0020] By adopting the above technical solution, the limiting block effectively restricts the lateral movement of the drive screw, improving the stability and accuracy of the gripper's movement. The design of the limiting groove allows the drive screw to rotate freely within the limiting block while preventing it from deviating, thus ensuring more accurate and smooth synchronous reverse movement of the gripper. This not only improves the overall reliability of the device but also enhances the positioning accuracy during clamping, further improving production efficiency and product quality.

[0021] In one specific implementation scheme, the rotary assembly includes a rotary motor, a rotary gear, and a rotary base. The rotary base is rotatably connected to a clamping seat, the rotary motor is mounted on the clamping seat, the rotary gear is fixedly connected to the output shaft of the rotary motor, and a gear ring is provided on the rotary base corresponding to the rotary gear. The rotary gear and the gear ring are driven to mesh.

[0022] By adopting the above technical solution, the rotary assembly includes a rotary motor, a rotary gear, and a rotary base. The rotary motor drives the rotary gear to mesh with the gear ring on the rotary base, enabling the rotary base to rotate precisely. This design ensures that the workpiece maintains high stability during rotation, thereby improving the accuracy of processing and measurement. The rotary base, driven by the rotary motor, can rotate at multiple angles, allowing the clamping device to adapt to the needs of different processes, increasing the equipment's versatility and applicability. The electric rotary mechanism replaces the traditional manual adjustment method, reducing manual intervention, lowering the difficulty of operation, and improving work efficiency. The motor-driven rotary mechanism is more reliable, avoiding the risk of misoperation that may occur with manual operation, and enhancing the safety performance of the entire system.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up a gripper drive structure and a zero-point positioning device, the precise movement of the gripper and the rapid positioning of the workpiece are realized, which effectively solves the problem of difficulty in adjusting the gripper position in the existing technology and improves the flexibility and adaptability of the equipment;

[0025] 2. The design of the bidirectional drive motor and drive screw enables the two grippers to move synchronously in opposite directions, ensuring a uniform distribution of clamping force and further enhancing the stability and positioning accuracy of the workpiece.

[0026] 3. The addition of reinforcing ribs increases the rigid connection between the grippers, avoiding positioning errors caused by gripper deformation after prolonged use and extending the service life of the equipment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.

[0028] Figure 2This is a cross-sectional view of Embodiment 1 of this application.

[0029] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Clamping seat; 2. Rotary assembly; 21. Rotary motor; 22. Rotary seat; 3. Clamping assembly; 31. Gripper drive structure; 311. Bidirectional drive motor; 312. Drive screw; 313. Limit block; 32. Gripper; 33. Slider; 34. Slide rail; 4. Reinforcing rib. Detailed Implementation

[0031] This application discloses a pallet zero-point positioning clamping device.

[0032] Example 1

[0033] like Figure 1 As shown, the pallet zero-point positioning clamping device includes a clamping base 1, a rotating assembly 2, and a clamping assembly 3. The rotating assembly 2 is installed on the upper end of the clamping base 1, and the clamping base 1 is connected to the frame through the rotating assembly 2. The clamping assembly 3 includes a jaw drive structure 31 and a jaw 32. The jaw drive structure 31 is installed on the clamping base 1, and the jaw 32 is installed on the clamping base 1 through the jaw drive structure 31. The jaw drive structure 31 is used to drive the jaw 32 to move. A zero-point positioning device is installed on the jaw 32, which achieves the effect of quickly adjusting the position of the jaw 32 to adapt to pallets of different sizes.

[0034] The clamping base 1 can be made of high-strength alloy steel, which has good rigidity and corrosion resistance. The shape of the clamping base 1 can be designed according to actual application requirements, such as rectangular or circular, to better cooperate with other mechanical equipment. The rotating assembly 2 can adopt a bearing structure to ensure that the clamping base 1 can rotate freely on the frame, thereby achieving multi-angle workpiece positioning.

[0035] The rotary assembly 2 includes a rotary motor 21, a rotary gear, and a rotary base 22. The rotary base 22 is rotatably connected to the clamping base 1. The rotary motor 21 is mounted on the clamping base 1. The rotary gear is fixedly connected to the output shaft of the rotary motor 21. A gear ring is provided on the rotary base 22 corresponding to the rotary gear, and the rotary gear and the gear ring are driven to mesh. The rotary motor 21 can be a stepper motor or a servo motor to achieve precise angle control. Limit switches can also be provided on the rotary base 22 to prevent excessive rotation from damaging the equipment.

[0036] The clamping assembly 3 includes a gripper drive structure 31 and grippers 32. The gripper drive structure 31 can take the form of a bidirectional drive motor 311, a drive screw 312, and a limiting block 313. The bidirectional drive motor 311 is mounted on the clamping base 1. Two drive screws 312 and two limiting blocks 313 are provided. The two drive screws 312 are respectively mounted on the output shafts at both ends of the bidirectional drive motor 311. The limiting blocks 313 are mounted on the grippers 32 and are drivenly connected to the drive screws 312 to achieve synchronous and opposite movements of the two grippers 32. The grippers 32 can achieve linear movement along the clamping base 1 through the cooperation of the slider 33 and the slide rail 34. The slide rail 34 is mounted on the upper end face of the clamping base 1. A through-slot is opened at the upper end of the gripper 32. The slider 33 is mounted on the upper end face of the through-slot and is slidably connected to the slide rail 34, so that the structure of the mounting base can pass through the through-slot.

[0037] The gripper 32 itself can be made of stainless steel with a polished surface to reduce friction and increase service life. The gripper 32 can also be equipped with rubber pads or other anti-slip materials to increase gripping stability. The zero-point positioning device on the gripper 32 can be a high-precision positioning pin or a set of adjustable positioning pins for more precise control of the gripper 32's position.

[0038] Reinforcing ribs can be installed on both sides of the clamping base 1, with each end connected to one of the two grippers 32 located on the same side of the clamping base 1. The function of the reinforcing ribs is to enhance the rigidity of the entire device and prevent deformation during high-speed operation. The reinforcing ribs can be made of aluminum alloy or carbon fiber composite material, both of which are lightweight and high-strength, effectively improving structural strength without adding excessive weight.

[0039] It also includes a limiting block 313, which has a limiting groove. The limiting block 313 is installed on the clamping seat 1 near one end of the drive screw 312 adjacent to the bidirectional drive motor 311. The drive screw 312 passes through the limiting groove and can rotate relative to the limiting block 313 to ensure the accurate positioning of the gripper 32.

[0040] The implementation principle of the pallet zero-point positioning clamping device in this embodiment is as follows: A bidirectional drive motor 311 drives a drive screw 312 to rotate, causing a limiting block 313 to move along the drive screw 312, which in turn drives the gripper 32 to move linearly along the slide rail 34. Because a synchronous reverse motion mechanism is set between the grippers 32, the simultaneous opening and closing of the two grippers 32 can be achieved, quickly adjusting the position of the grippers 32 to accommodate pallets of different sizes. Furthermore, the stability and accuracy of the device are further improved by setting reinforcing ribs and a zero-point positioning device. Overall, this embodiment provides a highly efficient and flexible pallet zero-point positioning clamping device, significantly improving production efficiency and product quality.

[0041] Example 2

[0042] The difference between this embodiment and Embodiment 1 is that in this embodiment, the slide rail 34 is installed on the lower end face of the clamping seat 1, and the slider 33 is installed on the upper end of the gripper 32.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pallet zero positioning clamp apparatus, characterized by: The utility model provides a kind of clamping device, including clamping seat (1), swivel assembly (2) and clamping assembly (3), the swivel assembly (2) is installed on the clamping seat (1) upper end, and the clamping seat (1) is connected with frame by swivel assembly (2), the clamping assembly (3) includes jaw driving structure (31) and jaw (32), the jaw driving structure (31) is installed on clamping seat (1), jaw (32) is installed on clamping seat (1) by jaw driving structure (31), the jaw driving structure (31) is used to drive jaw (32) to move, zero positioning device is installed on the jaw (32).

2. The pallet null-point positioning clamp device according to claim 1, characterized in that: The jaw driving structure (31) is provided with two groups, and the two groups of jaw driving structure (31) are installed on the two sides of the clamping seat (1).

3. The pallet null-point positioning clamp device according to claim 2, characterized in that: The jaw driving structure (31) is provided with two groups, and the jaw (32) is provided with two corresponding each group of jaw driving structure (31), and the two jaws (32) are installed on the two ends of the jaw driving structure (31) respectively.

4. The pallet null-point positioning clamp device according to claim 3, characterized in that: It also includes a reinforcing rib, and the reinforcing rib is connected with the two jaws (32) located on the same side of the clamping seat (1) respectively.

5. The pallet null-point positioning clamp device according to claim 3, characterized in that: The jaw driving structure (31) includes a bidirectional driving motor (311), a drive screw (312) and a limiting block (313), the bidirectional driving motor (311) is installed on the clamping seat (1), the drive screw (312) and the limiting block (313) are both provided with two, the two drive screws (312) are installed on the output shafts at the two ends of the bidirectional driving motor (311) respectively, the limiting block (313) is installed on the jaw (32), the limiting block (313) is drivingly connected with the drive screw (312), so as to realize the synchronous reverse motion of the two jaws (32), the jaw (32) is provided with a sliding block (33), the clamping seat (1) is provided with a sliding rail (34), and the sliding block (33) is slidingly connected to the sliding rail (34).

6. The pallet null-point positioning clamp device according to claim 5, characterized in that: The sliding rail (34) is installed on the lower end surface of the clamping seat (1), and the sliding block (33) is installed at the upper end position of the jaw (32).

7. The pallet null-point positioning clamp device according to claim 5, characterized in that: The sliding rail (34) is installed on the upper end surface of the clamping seat (1), a through groove is formed in the upper end position of the jaw (32), the sliding block (33) is installed on the upper end surface of the through groove, and the sliding block (33) is slidingly connected to the sliding rail (34), so that the mounting seat part structure can be arranged through the through groove.

8. The pallet null-point positioning clamp device according to claim 5, characterized in that: It also includes a limiting block (313), a limiting groove is formed in the limiting block (313), the limiting block (313) is installed on the clamping seat (1) adjacent to one end of the drive screw (312) and the bidirectional driving motor (311), the drive screw (312) is arranged through the limiting groove and can rotate relative to the limiting block (313).

9. The pallet null-point positioning clamp apparatus of claim 1, wherein: The slewing assembly (2) comprises a slewing motor (21), a slewing gear and a slewing seat (22), the slewing seat (22) is rotationally connected on the clamping seat (1), the slewing motor (21) is installed on the clamping seat (1), the slewing gear is fixedly connected with an output shaft of the slewing motor (21), and a tooth ring is arranged on the slewing seat (22) corresponding to the slewing gear, and the slewing gear and the tooth ring are drivingly engaged.

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