Clamping device for robot welding

Abstract

The clamping device for robot welding comprises a base and a rotating disc, the rotating disc is movably installed at the top end of the base, a supporting frame is installed at the top end of the rotating disc, a rotating arm is installed on the outer wall of the supporting frame, an overturning arm is movably installed at the top end of the rotating arm, and the overturning arm is installed on the rotating arm. A turning arm is installed at the top end of the clamping device, a power frame is movably installed at the top end of the turning arm, a connecting arm is movably installed in the power frame, a connecting plate is installed at the bottom end of the connecting arm, and a connecting frame is installed at the bottom end of the connecting plate. According to the welding device, welding operation can be conveniently and rapidly conducted through multi-stage rotation angles, the clamping device can conveniently and rapidly adjust the angle of a workpiece to clamp the workpiece, the workpiece on the ground can be conveniently clamped and lifted to the designated position, the operation intensity of manual carrying and feeding is lowered, and the workpiece clamping and welding efficiency of the clamping device is improved.

Description

Technical Field

[0001] This utility model relates to the field of clamping device technology, specifically a clamping device for robot welding. Background Technology

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure. Welding robots are industrial robots that perform welding, including cutting and spraying. According to the definition of standard welding robots by the International Organization for Standardization, industrial robots are multi-purpose, reprogrammable, and automatically controlled manipulators with three or more programmable axes, used in the field of industrial automation.

[0003] As disclosed in patent announcement number CN222449038U, a clamping device for robot welding includes a base, a first motor, a support arm, a limiting groove, a limiting block, and a clamping device. The first motor is fixedly connected to the top of the inner wall of the base, and the bottom of the support arm is fixedly connected to the output end of the first motor. This invention supports the first motor and the support arm by setting a base, and then controls the first motor to drive the support arm to rotate to a specific angle, making it more convenient to use. Furthermore, when the support arm blocks an object, it can be rotated to avoid the object.

[0004] While solving the problem that the existing clamping device has limited adjustable angles, making it impossible to weld some surfaces during welding, it is very convenient to use and has the advantage of a wider adjustable angle.

[0005] However, the existing clamping devices of this type are not conducive to the quick centering, positioning, clamping, and fixing of workpieces, nor are they convenient for multi-level rotation angle welding operations, nor are they convenient for adjusting the angle of the workpiece for clamping, nor are they convenient for clamping and lifting workpieces on the ground to a designated position. This greatly affects the labor intensity of manual handling and loading, and affects the efficiency of the clamping device in clamping and welding workpieces. Utility Model Content

[0006] The purpose of this utility model is to provide a clamping device for robot welding, so as to solve the problems mentioned in the background art, such as the inconvenience of clamping devices for quick centering, positioning and clamping of workpieces, the inconvenience of convenient multi-level rotation angle welding operations, the inconvenience of convenient adjustment of the angle of workpiece clamping, and the inconvenience of clamping and lifting workpieces on the ground to a designated position, which affect the labor intensity of manual handling and loading, and affect the efficiency of clamping devices for workpiece clamping and welding.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a clamping device for robot welding, comprising a base and a rotating disk. The rotating disk is movably mounted on the top of the base, and a support frame is mounted on the top of the rotating disk. A rotating arm is mounted on the outer wall of the support frame, and a flipping arm is movably mounted on the top of the rotating arm. A power frame is movably mounted on the top of the flipping arm, and a connecting arm is movably mounted inside the power frame, extending to the outside of the power frame. A connecting plate is mounted on the bottom end of the connecting arm, and a [missing information - likely a component or element] is mounted on the bottom end of the connecting plate. A connecting frame is provided, with clamping arms symmetrically and slidably mounted on its bottom end. A central shaft is installed at the center of the connecting plate, with a worm gear fitted at the top and a gear fitted at the bottom. A motor mount is installed on the top of the connecting plate on one side of the worm gear, and a servo motor is mounted on the outer wall of the motor mount. A worm is installed at the output end of the servo motor, and the worm meshes with the worm gear. Racks are symmetrically and slidably mounted inside the connecting frame on one side of the gear, with both sets of racks meshing with the gear, and both sets of racks are connected to the clamping arms respectively.

[0008] Preferably, the bottom end of the connecting frame is symmetrically equipped with slide rails, and the bottom end of the slide rails is symmetrically slidably equipped with sliders, and each slider is connected to the clamping arm on the adjacent side.

[0009] Preferably, a secondary motor is installed on the outer wall of the rotating arm, and a secondary shaft is installed at the output end of the secondary motor. The secondary shaft extends to the outside of the tilting arm and is connected to the tilting arm. The secondary shaft is also movably connected to the rotating arm.

[0010] Preferably, a three-stage motor is installed on the outer wall of the tilting arm, and a three-stage shaft is installed at the output end of the three-stage motor. The three-stage shaft extends to the outside of the tilting arm and is movably connected to the tilting arm. The three-stage shaft is also connected to the power frame.

[0011] Preferably, a four-stage motor is installed on the outer wall of the power frame, and a four-stage shaft is installed at the output end of the four-stage motor. The four-stage shaft extends to the outside of the power frame and is connected to the connecting arm. The four-stage shaft is movably connected to the power frame.

[0012] Preferably, a primary motor is installed on the outer wall of the rotating arm on one side of the support frame. A primary shaft is installed at the output end of the primary motor, and the primary shaft extends to the outside of the rotating arm. The primary shaft is movably connected to the rotating arm and fixedly connected to the support frame.

[0013] Preferably, a stepper motor is installed at the center of the base, and a drive shaft is installed at the output end of the stepper motor. The drive shaft extends to the outside of the base and is connected to the rotating disk and movably connected to the base.

[0014] Preferably, the top of the base below the rotating disk is equipped with multiple sets of equally spaced support blocks, and the support blocks are slidably connected to the rotating disk.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the clamping device not only realizes the quick centering, positioning, clamping and fixing of the workpiece, but also facilitates the welding operation with multiple rotation angles, allows for convenient adjustment of the angle of the workpiece for clamping, and makes it easy to clamp and lift the workpiece on the ground to the designated position. In addition, it reduces the labor intensity of manual handling and loading, and improves the efficiency of the clamping device for clamping and welding workpieces.

[0016] (1) The servo motor drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the central shaft to rotate, the central shaft drives the gear to rotate, and the gear drives the racks on both sides to move towards each other. Under the sliding support of the slide rail and the slider, the slider slides on the surface of the slide rail, and the slider drives the clamping arm to move inward, which facilitates the centering and clamping of the workpiece. This realizes the quick centering, positioning, clamping and fixing of the workpiece by the clamping device, and improves the convenience of centering and clamping of the clamping device for robot welding.

[0017] (2) The second-level motor drives the second-level shaft to rotate, the second-level shaft drives the tilting arm to rotate, the third-level motor drives the third-level shaft to rotate, the third-level shaft rotates, the fourth-level motor drives the fourth-level shaft to rotate, and the fourth-level shaft drives the connecting arm, connecting frame, clamping arm, and clamped workpiece to rotate in multiple stages, which facilitates the multi-angle rotation of the clamped workpiece, realizes the convenient multi-stage rotation angle of the clamping device for welding operations, increases the range of adjustment of the rotation of the welding workpiece, and facilitates flexible adaptation to welding robots for welding operations.

[0018] (3) The first-level motor drives the first-level shaft to rotate. Due to the relative action of forces, the first-level motor drives the rotating arm to rotate around the first-level shaft. The rotating arm drives the flipping arm, power frame, connecting arm, connecting frame, clamping arm, and the clamped workpiece to rotate, which facilitates the adjustment of the clamping position. The stepper motor drives the drive shaft to rotate, and the drive shaft drives the rotating disk to rotate, which facilitates the circumferential rotation adjustment, so as to facilitate the multi-level rotation adjustment of the clamping arm position, so as to facilitate the clamping arm to clamp the workpiece on the ground. This realizes that the clamping device can conveniently adjust the angle of the workpiece for clamping, which facilitates the clamping and lifting of the workpiece on the ground to the designated position, reduces the labor intensity of manual handling and loading, and improves the efficiency of the clamping device for clamping and welding the workpiece. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the base of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the connecting frame of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the gear of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the clamping arm of this utility model;

[0025] Figure 7 A three-dimensional structural diagram of the tilting arm of this utility model.

[0026] In the diagram: 1. Base; 2. Rotary disk; 3. Support frame; 4. Rotating arm; 5. Clamping arm; 6. Tilting arm; 7. Power frame; 8. Connecting arm; 9. Connecting plate; 10. Connecting frame; 11. Central shaft; 12. Servo motor; 13. Motor base; 14. Worm gear; 15. Worm; 16. Gear; 17. Rack; 18. Slide rail; 19. Slider; 20. Stepper motor; 21. Drive shaft; 22. Support block; 23. Primary motor; 24. Primary axis; 25. Secondary axis; 26. Secondary motor; 27. Tertiary motor; 28. Tertiary axis; 29. ​​Quaternary axis; 30. Quaternary motor. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figure 1-7This utility model provides an embodiment of a clamping device for robot welding, comprising a base 1 and a rotating disk 2. The rotating disk 2 is movably mounted on the top of the base 1, and a support frame 3 is mounted on the top of the rotating disk 2. A rotating arm 4 is mounted on the outer wall of the support frame 3, a flipping arm 6 is movably mounted on the top of the rotating arm 4, and a power frame 7 is movably mounted on the top of the flipping arm 6. A connecting arm 8 is movably mounted inside the power frame 7 and extends to the outside of the power frame 7. A connecting plate 9 is mounted on the bottom end of the connecting arm 8, and a connecting frame 10 is mounted on the bottom end of the connecting plate 9. Clamping arms 5 are symmetrically slidably mounted on the bottom end of the connecting frame 10. A central shaft 11 is mounted at the center position inside the connecting plate 9. A worm gear 14 is fitted at the top of the central shaft 11, and a gear 16 is fitted at the bottom of the central shaft 11. A motor base 13 is installed at the top of the connecting plate 9 on one side of the worm gear 14. A servo motor 12 is installed on the outer wall of the motor base 13. A worm 15 is installed at the output end of the servo motor 12, and the worm 15 meshes with the worm gear 14. A rack 17 is symmetrically slidably installed inside the connecting frame 10 on one side of the gear 16, and both sets of racks 17 mesh with the gear 16. The two sets of racks 17 are respectively connected to the clamping arm 5. A slide rail 18 is symmetrically installed at the bottom of the connecting frame 10, and a slider 19 is symmetrically slidably installed at the bottom of the slide rail 18. The sliders 19 are all connected to the clamping arm 5 on the adjacent side.

[0029] The workpiece is placed between the two clamping arms 5. The servo motor 12 is turned on. With the support of the connecting plate 9 and the motor base 13, the servo motor 12 drives the worm 15 to rotate. With the meshing of the worm wheel 14 and the worm 15, the worm 15 drives the worm wheel 14 to rotate. The worm wheel 14 drives the central shaft 11 to rotate. The central shaft 11 drives the gear 16 to rotate. With the meshing drive of the gear 16 and the rack 17, the gear 16 drives the racks 17 on both sides to move towards each other. With the sliding support of the slide rail 18 and the slider 19, the slider 19 slides on the surface of the slide rail 18. The slider 19 drives the clamping arms 5 to move inward, which facilitates the centering and clamping of the workpiece. This makes it easier for the welding robot to perform fast welding operations on the workpiece. It realizes the quick centering, positioning, clamping and fixing of the workpiece by the clamping device, and improves the convenience of centering and clamping the robot welding clamping device.

[0030] A secondary motor 26 is installed on the outer wall of the rotating arm 4. A secondary shaft 25 is installed at the output end of the secondary motor 26 and extends to the outside of the tilting arm 6. The secondary shaft 25 is connected to the tilting arm 6 and is movably connected to the rotating arm 4. A tertiary motor 27 is installed on the outer wall of the tilting arm 6. A tertiary shaft 28 is installed at the output end of the tertiary motor 27 and extends to the outside of the tilting arm 6. The tertiary shaft 28 is movably connected to the tilting arm 6 and is connected to the power frame 7. A quaternary motor 30 is installed on the outer wall of the power frame 7. A quaternary shaft 29 is installed at the output end of the quaternary motor 30 and extends to the outside of the power frame 7. The quaternary shaft 29 is connected to the connecting arm 8 and is movably connected to the power frame 7.

[0031] When the clamped workpiece needs to rotate, the secondary motor 26 is activated. With the support of the rotating arm 4, the secondary motor 26 drives the secondary shaft 25 to rotate, which in turn drives the tilting arm 6 to rotate. The tertiary motor 27 is activated. With the support of the tilting arm 6, the tertiary motor 27 drives the tertiary shaft 28 to rotate. With the support of the power frame 7, the tertiary motor 30 drives the tertiary shaft 29 to rotate. The tertiary shaft 29 drives the connecting arm 8, connecting frame 10, clamping arm 5, and the clamped workpiece to rotate in multiple stages. This facilitates multi-angle rotation of the clamped workpiece, enabling convenient multi-stage rotation angle welding operations. It also increases the range of workpiece rotation adjustment and facilitates flexible adaptation to welding robots for welding operations.

[0032] A primary motor 23 is installed on the outer wall of the rotating arm 4 on one side of the support frame 3. A primary shaft 24 is installed at the output end of the primary motor 23 and extends to the outside of the rotating arm 4. The primary shaft 24 is movably connected to the rotating arm 4 and is fixedly connected to the support frame 3. A stepper motor 20 is installed at the center inside the base 1. A drive shaft 21 is installed at the output end of the stepper motor 20 and extends to the outside of the base 1. The drive shaft 21 is connected to the rotating disk 2 and is movably connected to the base 1. Multiple sets of support blocks 22 with equal spacing are installed at the top of the base 1 below the rotating disk 2 and are slidably connected to the rotating disk 2.

[0033] Turn on the primary motor 23. With the support of the rotating arm 4 and the support frame 3 on the primary shaft 24, the primary motor 23 drives the primary shaft 24 to rotate. Due to the relative force, the primary motor 23 drives the rotating arm 4 to rotate around the primary shaft 24. The rotating arm 4 drives the tilting arm 6, the power frame 7, the connecting arm 8, the connecting frame 10, the clamping arm 5, and the clamped workpiece to rotate, facilitating adjustment of the clamping position. Turn on the stepper motor 20. With the support of the base 1, the stepper motor 20 drives the drive shaft 21 to rotate. With the support of the base 1 and the support block 22, and the sliding support of the support block 22 on the rotating disk 2, The drive shaft 21 drives the rotary disk 2 to rotate, facilitating circumferential rotation adjustment. This allows for multi-stage rotation adjustment of the clamping arm 5, enabling it to easily grip workpieces on the ground. When gripping workpieces, the stepper motors 20, 1st stage motor 23, 2nd stage motor 26, 3rd stage motor 27, and 4th stage motor 30 are linked and controlled by an external controller. This reduces the workload of manual material handling and allows for convenient angle adjustment of the clamping device to grip the workpiece, facilitating the lifting of workpieces from the ground to a designated position. This reduces the workload of manual material handling and improves the efficiency of the clamping device in workpiece clamping and welding.

[0034] In this embodiment, the workpiece is placed between the two clamping arms 5. The servo motor 12 drives the worm gear 15 to rotate, which in turn drives the worm wheel 14 to rotate. The worm wheel 14 drives the central shaft 11 to rotate, which in turn drives the gear 16 to rotate. The gear 16 drives the two racks 17 to move towards each other. The slider 19 slides on the surface of the slide rail 18, and the slider 19 drives the clamping arms 5 to move inward, facilitating the centering and clamping of the workpiece. This allows the welding robot to perform rapid welding operations on the workpiece. The secondary motor 26 drives the secondary shaft 25 to rotate, which in turn drives the tilting arm 6 to rotate. The tertiary motor 27 drives the tertiary shaft 28 to rotate, and the quaternary motor 30 drives the quaternary shaft 29 to rotate. The quaternary shaft 29 drives the connecting arm 8, the connecting frame 10, the clamping arms 5, and the clamped workpiece to rotate in multiple stages, facilitating multi-angle rotation of the clamped workpiece. With the support frame 3 supporting the primary shaft 24, the primary motor 23 drives the primary shaft 24 to rotate. Due to the relative force, the primary motor 23 drives the rotating arm 4 to rotate around the primary shaft 24. The rotating arm 4 drives the flipping arm 6, the power frame 7, the connecting arm 8, the connecting frame 10, the clamping arm 5, and the clamped workpiece to rotate, facilitating the adjustment of the clamping position. The stepper motor 20 drives the drive shaft 21 to rotate, and the drive shaft 21 drives the rotating disk 2 to rotate, facilitating circumferential rotation adjustment. This allows for multi-stage rotation adjustment of the clamping arm 5, facilitating the clamping arm 5 to clamp the workpiece on the ground. When the clamping arm 5 clamps the workpiece on the ground, the stepper motor 20, the primary motor 23, the secondary motor 26, the tertiary motor 27, and the quaternary motor 30 are linked and controlled by an external controller to reduce the workload of manual loading and handling, thus completing the operation of the clamping device.

Claims

1. A clamping device for robotic welding, characterized in that: The system includes a base (1) and a rotating disk (2). The rotating disk (2) is movably mounted on the top of the base (1). A support frame (3) is mounted on the top of the rotating disk (2). A rotating arm (4) is mounted on the outer wall of the support frame (3). A flipping arm (6) is movably mounted on the top of the rotating arm (4). A power frame (7) is movably mounted on the top of the flipping arm (6). A connecting arm (8) is movably mounted inside the power frame (7) and extends to the outside of the power frame (7). A connecting plate (9) is mounted on the bottom end of the connecting arm (8). A connecting frame (10) is mounted on the bottom end of the connecting plate (9). Clamping arms (5) are symmetrically slidably mounted on the bottom end of the connecting frame (10). A central shaft (11) is installed at the center of the plate (9). A worm gear (14) is fitted at the top of the central shaft (11), and a gear (16) is fitted at the bottom of the central shaft (11). A motor mount (13) is installed at the top of the connecting plate (9) on one side of the worm gear (14). A servo motor (12) is installed on the outer wall of the motor mount (13). A worm (15) is installed at the output end of the servo motor (12), and the worm (15) meshes with the worm gear (14). A rack (17) is symmetrically slidably installed inside the connecting bracket (10) on one side of the gear (16), and both sets of racks (17) mesh with the gear (16). The two sets of racks (17) are respectively connected to the clamping arm (5).

2. The clamping device for robot welding according to claim 1, characterized in that: The bottom end of the connecting frame (10) is symmetrically equipped with slide rails (18), and the bottom end of the slide rails (18) is symmetrically slidably equipped with sliders (19), and the sliders (19) are all connected to the clamping arms (5) on the adjacent side.

3. The clamping device for robot welding according to claim 1, characterized in that: A secondary motor (26) is installed on the outer wall of the rotating arm (4). A secondary shaft (25) is installed at the output end of the secondary motor (26). The secondary shaft (25) extends to the outside of the tilting arm (6) and is connected to the tilting arm (6). The secondary shaft (25) is movably connected to the rotating arm (4).

4. The clamping device for robot welding according to claim 1, characterized in that: A three-stage motor (27) is installed on the outer wall of the tilting arm (6). A three-stage shaft (28) is installed at the output end of the three-stage motor (27). The three-stage shaft (28) extends to the outside of the tilting arm (6) and is movably connected to the tilting arm (6). The three-stage shaft (28) is also connected to the power frame (7).

5. The clamping device for robot welding according to claim 1, characterized in that: A four-stage motor (30) is installed on the outer wall of the power frame (7). A four-stage shaft (29) is installed at the output end of the four-stage motor (30). The four-stage shaft (29) extends to the outside of the power frame (7) and is connected to the connecting arm (8). The four-stage shaft (29) is movably connected to the power frame (7).

6. The clamping device for robot welding according to claim 1, characterized in that: A primary motor (23) is installed on the outer wall of the rotating arm (4) on one side of the support frame (3). A primary shaft (24) is installed at the output end of the primary motor (23). The primary shaft (24) extends to the outside of the rotating arm (4) and is movably connected to the rotating arm (4). The primary shaft (24) is also fixedly connected to the support frame (3).

7. The clamping device for robot welding according to claim 1, characterized in that: A stepper motor (20) is installed at the center of the base (1). A drive shaft (21) is installed at the output end of the stepper motor (20). The drive shaft (21) extends to the outside of the base (1) and is connected to the rotating disk (2). The drive shaft (21) is movably connected to the base (1).

8. A clamping device for robot welding according to claim 1, characterized in that: The base (1) below the rotating disk (2) is equipped with multiple sets of equally spaced support blocks (22), and the support blocks (22) are slidably connected to the rotating disk (2).

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