A flexible clamping device for a welding station

Abstract

The utility model discloses a kind of welding workstation flexible clamping devices, including welding workbench, the middle part of welding workbench is symmetrically installed with vertical rod, the inside elastic sliding installation of vertical rod has movable rod, the top of four movable rods is fixedly installed with support table, the top of support table is equipped with the support groove for carrying stator core, by crane equipment, stator core is placed in the support groove inside support table, the falling of stator core on support table is buffered by support spring, slowly drive stator core on support table to contact support roll under the action of stator core self gravity, support roll will support stator core, can be flexibly supported and fixed to stator core, then control two moving frames synchronous relative movement, the end of extruding block in moving frame will be extruded and contacted with stator core end, for controlling the center placement of stator core.

Description

Technical Field

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

[0002] A welding workstation is an industrial production system that integrates automated welding technology, robot control systems, and auxiliary equipment. It is mainly used to complete welding tasks efficiently and accurately. With a welding robot as the core, it is equipped with welding power supply, wire feeding mechanism, welding torch, and other equipment. The welding path and parameters are set through the control system to achieve automatic welding. It is also equipped with fixtures to fix the workpiece and integrates the main control cabinet, teach pendant, and sensors to achieve full-process automated control of the welding task. In the process of motor processing, many welding processes are involved, such as welding the stator coil nose and stator lug. By connecting the welding operation in the motor to the welding workstation, the speed and accuracy of motor processing are greatly improved.

[0003] When welding the stator coil nose and stator lug in a motor, the stator core is usually placed in the clamping mechanism on the workstation platform. However, during the placement of the stator core, it may be excessively squeezed and collided with the clamping mechanism on the platform, which may damage the stator core. Utility Model Content

[0004] The purpose of this invention is to provide a flexible clamping device for welding workstations to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flexible clamping device for a welding workstation, comprising a welding worktable, uprights symmetrically mounted in the middle of the welding worktable, movable rods elastically slidably mounted inside the uprights, support platforms fixedly mounted on the tops of the four movable rods, support grooves for supporting stator cores being provided at the top of the support platforms, movable frames symmetrically slidably mounted on the tops of both ends of the welding worktable, the two movable frames being capable of moving synchronously towards each other and backwards, a pressing block slidably mounted in the middle of the movable frame, the end of the pressing block being in pressing contact with the end of the stator core, and a support spring fixedly mounted at the bottom of the movable rods, the bottom end of the support spring being fixedly connected to the inner wall of the bottom end of the upright.

[0006] As a further preferred embodiment of this technical solution, a sliding hole is provided in the middle of the welding workbench corresponding to the position of the upright, the sliding hole is slidably connected to the upright, a connecting plate is fixedly installed between the bottom ends of the four uprights, a first hydraulic rod is installed below the welding workbench, the first hydraulic rod is fixed relative to the welding workbench, and the moving end of the first hydraulic rod is fixedly connected to the connecting plate.

[0007] As a further preferred embodiment of this technical solution, fixed seats are symmetrically fixedly installed on the upper surfaces of both ends of the welding workbench, and a support roller is rotatably installed in the middle of the fixed seat.

[0008] As a further preferred embodiment of this technical solution, the upper surface of the welding workbench is symmetrically and fixedly equipped with guide rails, the movable frame is slidably installed between the two guide rails, and a bidirectional screw is rotatably installed on the upper surface of the welding workbench at the position corresponding to the position between the two guide rails via bearings. The two ends of the bidirectional screw are respectively threaded to the middle of the two movable frames. A first servo motor is fixedly installed on the upper surface of the welding workbench at the end position corresponding to the end position of the bidirectional screw, and the output end of the first servo motor is fixedly connected to the end of the bidirectional screw via a shaft connector.

[0009] As a further preferred embodiment of this technical solution, a limiting rod is symmetrically fixedly installed inside the top of the movable frame, and a limiting hole is symmetrically opened in the middle of the extrusion block. The limiting rod is slidably connected to the limiting hole. A second hydraulic rod is fixedly installed at the top of the movable frame. The moving end of the second hydraulic rod passes through the top of the movable frame and is fixedly connected to the top of the extrusion block. The moving end of the second hydraulic rod is slidably connected to the top of the movable frame.

[0010] As a further preferred embodiment of this technical solution, a second servo motor is fixedly installed on one side of the extrusion block, and a friction wheel is fixedly installed through the extrusion block at the output end of the second servo motor, and the output end of the second servo motor is rotatably connected to the extrusion block.

[0011] As a further preferred embodiment of this technical solution, the support platform may be equipped with ball bearings arranged in a circular array and rolled at equal intervals at the position corresponding to the support groove.

[0012] This utility model provides a flexible clamping device for a welding workstation, which has the following advantages:

[0013] (1) This utility model uses a crane to place the stator core inside the support groove of the support platform. The stator core on the support platform is buffered by the support spring. Then, under the action of the stator core's own weight, the stator core on the support platform will slowly come into contact with the support roller. The support roller will support the stator core, which can provide flexible support and fixation for the stator core.

[0014] (2) In this utility model, the connecting plate is lowered by the first hydraulic rod, and the support platform is lowered by the connection between the movable rod and the upright rod by the support spring. Then, the first servo motor is powered on and rotated. The first servo motor drives the bidirectional screw to rotate. The two ends of the bidirectional screw are connected to the two moving frames by threads, and the two moving frames are controlled to move synchronously towards each other. The end of the extrusion block in the moving frame will press against the end of the stator core to control the centering of the stator core. Then, the extrusion block is lowered along the trajectory of the two limit rods by the second hydraulic rod to cancel the extrusion block pressing against the end of the stator core. Then, the extrusion block is lowered again to control the friction wheel installed on the extrusion block to contact and press against the inner wall of the stator core. The friction wheel is rotated by the second servo motor. The friction and pressing between the friction wheel and the inner wall of the stator core will drive the rotation of the stator core, which facilitates the subsequent welding operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model;

[0017] Figure 3 This is a schematic diagram of a partial explosion structure of the present invention;

[0018] Figure 4 This is a partial structural schematic diagram of the present invention;

[0019] In the diagram: 1. Welding workbench; 2. Upright pole; 3. Movable rod; 4. Support platform; 5. Support groove; 6. Moving frame; 7. Extrusion block; 8. Support spring; 9. Sliding hole; 10. Connecting plate; 11. First hydraulic rod; 12. Fixed seat; 13. Support roller; 14. Guide rail; 15. Bidirectional screw; 16. First servo motor; 17. Limiting rod; 18. Limiting hole; 19. Second hydraulic rod; 20. Second servo motor; 21. Friction wheel. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figures 1 to 4As shown, in this embodiment, a flexible clamping device for a welding workstation includes a welding workbench 1. A vertical rod 2 is symmetrically installed in the middle of the welding workbench 1. Movable rods 3 are elastically slidably installed inside the vertical rods 2. Support platforms 4 are fixedly installed on the tops of the four movable rods 3. Support grooves 5 for supporting the stator core are opened at the top of the support platforms 4. Moving frames 6 are symmetrically slidably installed on the tops of both ends of the welding workbench 1. Two moving frames 6 can move synchronously towards each other and away from each other. A pressing block 7 is slidably installed in the middle of the moving frame 6. The end of the pressing block 7 is in pressing contact with the end of the stator core. A support spring 8 is fixedly installed at the bottom end of each movable rod 3. The bottom end of the support spring 8 is in contact with... The bottom inner wall of the upright 2 is fixedly connected. Fixed seats 12 are symmetrically fixedly installed on the upper surfaces of both ends of the welding workbench 1. A support roller 13 is rotatably installed in the middle of the fixed seat 12. The stator core is placed in the support groove 5 of the support platform 4 by a hoisting device. The stator core on the support platform 4 is buffered by the support spring 8. Then, under the action of the stator core's own weight, the stator core on the support platform 4 will slowly be driven to contact the support roller 13. The support roller 13 will support the stator core, which can provide flexible support and fixation for the stator core. Then, the two moving frames 6 are controlled to move synchronously towards each other. The end of the pressing block 7 in the moving frame 6 will press and contact the end of the stator core to control the centering of the stator core.

[0022] like Figures 1 to 4 As shown, a sliding hole 9 is provided in the middle of the welding workbench 1 corresponding to the position of the upright 2. The sliding hole 9 is slidably connected to the upright 2. A connecting plate 10 is fixedly installed between the bottom ends of the four uprights 2. A first hydraulic rod 11 is installed below the welding workbench 1. The first hydraulic rod 11 is fixed relative to the welding workbench 1. The moving end of the first hydraulic rod 11 is fixedly connected to the connecting plate 10.

[0023] The first hydraulic rod 11 drives the connecting plate 10 to descend, and the connection between the movable rod 3 and the upright rod 2 via the support spring 8 will drive the support platform 4 to descend, thus canceling the support platform 4's support for the stator core.

[0024] like Figures 1 to 4 As shown, guide rails 14 are symmetrically fixedly installed on the upper surface of the welding workbench 1. The movable frame 6 is slidably installed between the two guide rails 14. A bidirectional screw 15 is rotatably installed on the upper surface of the welding workbench 1 at the position between the two guide rails 14 via bearings. The two ends of the bidirectional screw 15 are threadedly connected to the middle of the two movable frames 6 respectively. A first servo motor 16 is fixedly installed on the upper surface of the welding workbench 1 at the end position of the bidirectional screw 15. The output end of the first servo motor 16 is fixedly connected to the end of the bidirectional screw 15 via a shaft connector.

[0025] The first servo motor 16 is powered on and operated. The first servo motor 16 will drive the bidirectional screw 15 to rotate. The two ends of the bidirectional screw 15 are respectively threadedly connected to the two moving frames 6, which will control the two moving frames 6 to move synchronously towards each other or backwards.

[0026] like Figures 1 to 4 As shown, a limiting rod 17 is symmetrically fixedly installed inside the top of the movable frame 6, and a limiting hole 18 is symmetrically opened in the middle of the extrusion block 7. The limiting rod 17 is slidably connected to the limiting hole 18. A second hydraulic rod 19 is fixedly installed at the top of the movable frame 6. The moving end of the second hydraulic rod 19 passes through the top of the movable frame 6 and is fixedly connected to the top of the extrusion block 7. The moving end of the second hydraulic rod 19 is slidably connected to the top of the movable frame 6. A second servo motor 20 is fixedly installed on one side of the extrusion block 7. A friction wheel 21 is fixedly installed through the extrusion block 7 at the output end of the second servo motor 20. The output end of the second servo motor 20 is rotatably connected to the extrusion block 7.

[0027] The second hydraulic rod 19 drives the extrusion block 7 to descend along the trajectory of the two limit rods 17, canceling the extrusion block 7's extrusion on the end of the stator core. Then, the extrusion block 7 is driven to descend again, bringing the friction wheel 21 installed on the extrusion block 7 into contact with and extruding the inner wall of the stator core. The second servo motor 20 controls the friction wheel 21 to rotate. The friction and extrusion between the friction wheel 21 and the inner wall of the stator core will drive the stator core to rotate, facilitating subsequent welding operations.

[0028] like Figures 1 to 4 As shown, the support platform 4 is equipped with ball bearings arranged in a circular array and rolled at equal intervals at the position corresponding to the support groove 5.

[0029] The ball bearings allow the stator core to move smoothly within the support groove 5.

[0030] This utility model provides a flexible clamping device for a welding workstation, the specific working principle of which is as follows:

[0031] In use, the stator core is placed in the support groove 5 of the support platform 4 using a crane. The support spring 8 cushions the fall of the stator core from the support platform 4. Then, under its own weight, the stator core slowly contacts the support roller 13, which provides flexible support and fixation. Next, the first hydraulic rod 11 lowers the connecting plate 10. The connection between the movable rod 3 and the upright rod 2 via the support spring 8 lowers the support platform 4. Finally, the first servo motor 16 is energized, driving the bidirectional screw 15 to rotate. The threaded connection to the two moving frames 6 will control the two moving frames 6 to move synchronously towards each other. The end of the pressing block 7 in the moving frame 6 will press and contact the end of the stator core to control the centering of the stator core. Then, the second hydraulic rod 19 drives the pressing block 7 to descend along the trajectory of the two limit rods 17, canceling the pressing of the pressing block 7 on the end of the stator core. Then, the pressing block 7 is driven to descend again, controlling the friction wheel 21 installed on the pressing block 7 to contact and press with the inner wall of the stator core. The second servo motor 20 controls the friction wheel 21 to rotate. The friction and pressing between the friction wheel 21 and the inner wall of the stator core will drive the rotation of the stator core, which facilitates the subsequent welding operation.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible clamping device for a welding station, characterized in that: The assembly includes a welding workbench (1), with uprights (2) symmetrically installed in the middle of the welding workbench (1). Movable rods (3) are elastically slidably installed inside the uprights (2). Support platforms (4) are fixedly installed on the top of the four movable rods (3). Support grooves (5) for supporting the stator core are opened at the top of the support platforms (4). Movable frames (6) are symmetrically slidably installed on the top of both ends of the welding workbench (1). The two movable frames (6) can move synchronously towards each other and backwards. A pressing block (7) is slidably installed in the middle of the movable frame (6). The end of the pressing block (7) is pressed and contacted with the end of the stator core. A support spring (8) is fixedly installed at the bottom of the movable rods (3). The bottom end of the support spring (8) is fixedly connected to the inner wall of the bottom end of the uprights (2).

2. The flexible clamping device for a welding workstation according to claim 1, characterized in that: A sliding hole (9) is provided in the middle of the welding workbench (1) corresponding to the position of the upright (2). The sliding hole (9) is slidably connected to the upright (2). A connecting plate (10) is fixedly installed between the bottom ends of the four uprights (2). A first hydraulic rod (11) is installed below the welding workbench (1). The first hydraulic rod (11) is fixed relative to the welding workbench (1). The moving end of the first hydraulic rod (11) is fixedly connected to the connecting plate (10).

3. The flexible clamping device for a welding workstation according to claim 2, characterized in that: The welding workbench (1) has fixed seats (12) symmetrically fixedly installed on the upper surfaces of both ends, and a support roller (13) is rotatably installed in the middle of the fixed seat (12).

4. The flexible clamping device for a welding workstation according to claim 3, characterized in that: The upper surface of the welding workbench (1) is symmetrically fixedly equipped with guide rails (14). The moving frame (6) is slidably installed between the two guide rails (14). A bidirectional screw (15) is rotatably installed on the upper surface of the welding workbench (1) at the position between the two guide rails (14) through a bearing. The two ends of the bidirectional screw (15) are respectively threaded to the middle of the two moving frames (6). A first servo motor (16) is fixedly installed on the upper surface of the welding workbench (1) at the end position of the bidirectional screw (15). The output end of the first servo motor (16) is fixedly connected to the end of the bidirectional screw (15) through a shaft connector.

5. A flexible clamping device for a welding station according to claim 4, characterized in that: A limiting rod (17) is symmetrically fixedly installed inside the top of the movable frame (6). A limiting hole (18) is symmetrically opened in the middle of the extrusion block (7). The limiting rod (17) is slidably connected to the limiting hole (18). A second hydraulic rod (19) is fixedly installed at the top of the movable frame (6). The moving end of the second hydraulic rod (19) passes through the top of the movable frame (6) and is fixedly connected to the top of the extrusion block (7). The moving end of the second hydraulic rod (19) is slidably connected to the top of the movable frame (6).

6. A flexible clamping device for a welding station according to claim 5, characterized in that: A second servo motor (20) is fixedly installed on one side of the extrusion block (7). A friction wheel (21) is fixedly installed through the extrusion block (7) at the output end of the second servo motor (20). The output end of the second servo motor (20) is rotatably connected to the extrusion block (7).

7. The flexible clamping device for a welding workstation according to claim 1, characterized in that: The support platform (4) is equipped with ball bearings arranged in a circular array and rolled at equal intervals at the position corresponding to the support groove (5).

Images