Multi-angle flexible positioner for welding robot

Abstract

The utility model relates to a positioner technical field discloses a kind of multi-angle flexible positioners of welding robot, including pedestal, the top of the pedestal is fixedly connected with guide table, the inner wall of guide table is penetrated and is slidably connected with rack, the top inner wall of rack is hinged with machine table, the inner wall of machine table is rotatably connected with three-jaw chuck, the upper portion of pedestal is provided with adjusting mechanism, the inside of pedestal is provided with supporting mechanism, the adjusting mechanism includes turnover subassembly, the turnover subassembly includes slide bar, the slide bar is penetrated and is slidably connected in the inner wall of guide table.In the utility model, by the cooperation of turnover subassembly and rotating subassembly, not only can the workpiece be turned left or right, but also can make the workpiece square rotation along it, so that the workpiece can be adjusted at multiple angles during welding, thereby the flexibility of the workpiece can be improved, and the welding efficiency of the welding robot can be improved.

Description

Technical Field

[0001] This utility model relates to the field of positioner technology, and in particular to a multi-angle flexible positioner for welding robots. Background Technology

[0002] A positioner for welding robots is an auxiliary positioning device that works in collaboration with a robot. It is mainly used to adjust the position and angle of the workpiece during automated welding so that the weld is always in the most ideal welding posture.

[0003] A search revealed that Chinese Patent Publication No. CN220259947U discloses a multi-angle welding positioner. This utility model uses an arc-shaped rod, which, during use, can be moved within a fixed platform by the rotation of a servo motor. This causes the movable plate to tilt, thereby changing the tilt angle of the welding component. Simultaneously, the arc-shaped rod is fixed, effectively providing support when tilted and ensuring the stability of the welding process when the component is tilted.

[0004] While the aforementioned patent allows the movable plate to tilt using an arc-shaped rod, the special shape of the arc-shaped rod means that the movable plate can only tilt left and right, and cannot tilt forward and backward. Consequently, it is impossible to adjust the forward and backward tilt angle of the weld seam of the workpiece to be welded, resulting in poor flexibility during use. Therefore, a multi-angle flexible positioner for welding robots is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multi-angle flexible positioner for welding robots, which aims to improve the problem mentioned in the prior art that "positioners can only tilt left and right, have poor flexibility, and are not convenient for welding operations".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-angle flexible positioner for welding robots, comprising a base, a guide platform fixedly connected to the top of the base, a frame slidably connected through the inner wall of the guide platform, a machine platform hinged to the top inner wall of the frame, a three-jaw chuck rotatably connected to the inner wall of the machine platform, an adjustment mechanism provided above the base, and a support mechanism provided inside the base.

[0007] The adjustment mechanism includes a flipping assembly, which includes a slide rod that passes through and is slidably connected to the inner wall of the guide platform. A fixed shaft is fixedly connected to the side wall of the slide rod, and a threaded sleeve is fixedly connected to the bottom of the slide rod. A hollow rod is fixedly connected to the bottom of the frame. A No. 1 motor is fixedly connected to the outer wall of the guide platform, and a threaded rod is fixedly connected to the output end of the No. 1 motor. A hydraulic cylinder is hinged to the top of the inner wall of the frame, and a push rod is fixedly connected to the outer wall of the machine platform.

[0008] As a further description of the above technical solution:

[0009] The adjustment mechanism also includes a rotating component, which includes a second motor. The second motor is fixedly connected to the bottom of the machine base. The output end of the second motor is fixedly connected to a rotating shaft. The end of the rotating shaft away from the second motor passes through the machine base and is fixedly connected to the bottom of the three-jaw chuck.

[0010] As a further description of the above technical solution:

[0011] The support mechanism includes a support plate that extends through and is slidably connected to the inner wall of the base, and the cross-section of the support plate is L-shaped.

[0012] As a further description of the above technical solution:

[0013] A slider is slidably connected to the outer wall of the guide platform.

[0014] As a further description of the above technical solution:

[0015] A connecting rod is hinged to the top of the slider, and the end of the connecting rod away from the slider is hinged to the side wall of the frame.

[0016] As a further description of the above technical solution:

[0017] A connecting rod is hinged to the bottom of the slider, and the end of the connecting rod away from the slider is hinged to the upper surface of the support plate.

[0018] As a further description of the above technical solution:

[0019] The hollow rod is a hollow rod-shaped structure, and the outer wall of the fixed shaft is attached to the inner wall of the hollow rod.

[0020] As a further description of the above technical solution:

[0021] The piston rod of the hydraulic cylinder is hinged to the bottom end of the push rod, and the threaded rod is threadedly connected to the threaded sleeve.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by combining the flipping component and the rotating component, the workpiece can not only be flipped to the left or right, but also rotated horizontally, so that the workpiece can be adjusted at multiple angles during the welding process, thereby improving the flexibility of the workpiece and improving the welding efficiency of the welding robot.

[0024] 2. In this utility model, the support mechanism can increase the lateral support area of ​​the base when the frame tilts to one side of the base, thereby improving the stability of the base and ensuring the stability of the workpiece during the flipping process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a cross-sectional structural diagram of the base and guide platform of this utility model;

[0027] Figure 3 This is an exploded structural diagram of the frame of this utility model.

[0028] Legend:

[0029] 1. Base; 2. Guide table; 3. Frame; 4. Machine base; 5. Three-jaw chuck; 6. Tilting assembly; 61. Slide rod; 62. Fixed shaft; 63. Threaded sleeve; 64. Hollow rod; 65. Motor No. 1; 66. Threaded rod; 67. Hydraulic cylinder; 68. Push rod; 7. Rotating assembly; 71. Motor No. 2; 72. Rotating shaft; 8. Support mechanism; 81. Support plate; 82. Slider; 83. Connecting rod; 84. Connecting rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-3 This utility model provides an embodiment of a multi-angle flexible positioner for a welding robot, including a base 1, a guide platform 2 fixedly connected to the top of the base 1, a frame 3 slidably connected through the inner wall of the guide platform 2, and a platform 4 hinged to the top inner wall of the frame 3. When the platform 4 rotates, it drives the three-jaw chuck 5 to rotate synchronously. At this time, the tilt angle of the front and rear sides of the workpiece held by the three-jaw chuck 5 can be adjusted. The three-jaw chuck 5 is rotatably connected to the inner wall of the platform 4. The three-jaw chuck 5 is prior art, so it will not be described in detail here. The workpiece to be welded is clamped by the three-jaw chuck 5. An adjustment mechanism is provided above the base 1, and a support mechanism 8 is provided inside the base 1.

[0032] Reference Figures 2-3The adjustment mechanism includes a tilting assembly 6, which includes a slide rod 61. The slide rod 61 passes through and is slidably connected to the inner wall of the guide table 2. A fixed shaft 62 is fixedly connected to the side wall of the slide rod 61. As the slide rod 61 slides on the inner wall of the guide table 2, it drives the fixed shaft 62 to move synchronously. A threaded sleeve 63 is fixedly connected to the bottom of the slide rod 61. A hollow rod 64 is fixedly connected to the bottom of the frame 3. The hollow rod 64 is a hollow rod-shaped structure. The outer wall of the fixed shaft 62 fits against the inner wall of the hollow rod 64. As the fixed shaft 62 moves, it works with the hollow rod 64 to drive the frame 3 to slide on the inner wall of the guide table 2, thereby tilting the frame 3 to the left or right. A power supply is fixedly connected to the outer wall of the guide table 2. The first motor 65 can be a servo motor of model MHMF082L1U2M. The output end of the first motor 65 is fixedly connected to a threaded rod 66, which is threadedly connected to a threaded sleeve 63. Starting the first motor 65 drives the threaded rod 66 to rotate. Through the rotation of the threaded rod 66 and its threaded connection with the threaded sleeve 63, the slide rod 61 can be driven to slide on the inner wall of the guide table 2. A hydraulic cylinder 67 is hinged to the top of the inner wall of the frame 3. A push rod 68 is fixedly connected to the outer wall of the machine base 4. The piston rod of the hydraulic cylinder 67 is hinged to the bottom end of the push rod 68. Starting the hydraulic cylinder 67 pulls or pushes the push rod 68. At this time, the push rod 68 will drive the machine base 4 to rotate on the inner wall of the frame 3.

[0033] Reference Figures 2-3 The adjustment mechanism also includes a rotating component 7, which includes a second motor 71. The second motor 71 is fixedly connected to the bottom of the machine base 4. The second motor 71 can be a harmonic reduction motor of model VRT-040-060H. The high transmission ratio of the harmonic reducer generates a self-locking effect. The output end of the second motor 71 is fixedly connected to a rotating shaft 72. Starting the second motor 71 can drive the rotating shaft 72 to rotate. The end of the rotating shaft 72 away from the second motor 71 passes through the machine base 4 and is fixedly connected to the bottom of the three-jaw chuck 5. The rotating shaft 72 is rotatably connected to the machine base 4 at the point where it passes through. When the rotating shaft 72 rotates, it can drive the workpiece to rotate horizontally in conjunction with the three-jaw chuck 5.

[0034] Reference Figures 1-2The support mechanism 8 includes a support plate 81, which is slidably connected to the inner wall of the base 1. The cross-section of the support plate 81 is L-shaped. The support plate 81 can increase the support area of ​​the base 1, so that the base 1 can remain stable when the frame 3 tilts to the left. A slider 82 is slidably connected to the outer wall of the guide table 2. A connecting rod 83 is hinged to the top of the slider 82. The end of the connecting rod 83 away from the slider 82 is hinged to the side wall of the frame 3. When the frame 3 tilts to the left or right of the base 1, the frame 3 will push the connecting rod 83 downward, so that the connecting rod 83 pushes the slider 82 downward. At this time, the slider 82 will slide downward on the outer wall of the guide table 2. A connecting rod 84 is hinged to the bottom of the slider 82. The end of the connecting rod 84 away from the slider 82 is hinged to the upper surface of the support plate 81. By sliding the slider 82 downward in conjunction with the connecting rod 84, the support plate 81 can be driven to slide out of the base 1.

[0035] Working principle: During use, the three-jaw chuck 5 is used to clamp the workpiece to be welded. When it is necessary to tilt the workpiece forward or backward, the hydraulic cylinder 67 is activated to pull or push the push rod 68. At this time, the push rod 68 will drive the machine table 4 to rotate on the inner wall of the frame 3. While the machine table 4 is rotating, it will drive the three-jaw chuck 5 to rotate synchronously. At this time, the tilt angle of the front and rear sides of the workpiece held by the three-jaw chuck 5 can be adjusted so that the welding robot can weld the front and rear sides of the workpiece.

[0036] When it is necessary to tilt the workpiece to the left or right, the first motor 65 is started to drive the threaded rod 66 to rotate. The rotation of the threaded rod 66, in conjunction with the threaded sleeve 63 connected to it, drives the slide rod 61 to slide on the inner wall of the guide table 2. When the slide rod 61 slides to the left of the base 1, it drives the fixed shaft 62 to move synchronously. At this time, the fixed shaft 62 will move against the inner wall of the hollow rod 64 and push the hollow rod 64 to the left. The hollow rod 64 will then push the frame 3 to slide on the inner wall of the guide table 2. Simultaneously, the frame 3 will gradually tilt to the right of the base 1. At the same time, the... The combination of the machine table 4 and the three-jaw chuck 5 can tilt the workpiece to the right. When the slide bar 61 slides to the right side of the base 1, it will drive the fixed shaft 62 to move synchronously. At this time, the fixed shaft 62 will move against the inner wall of the hollow rod 64 and push the hollow rod 64 to the right. At this time, the hollow rod 64 will push the frame 3 to slide on the inner wall of the guide table 2. At the same time, the frame 3 will gradually tilt to the left side of the base 1. Meanwhile, the combination of the machine table 4 and the three-jaw chuck 5 can tilt the workpiece to the left, so that the workpiece can be tilted to the left or right, which further facilitates the welding robot to weld the workpiece.

[0037] The second motor 71 is started to drive the rotating shaft 72 to rotate, which in turn drives the three-jaw chuck 5 to rotate on the inner wall of the machine base 4. At this time, the three-jaw chuck 5 will drive the workpiece it holds to rotate horizontally, thereby adjusting the welding position of the workpiece and making it more convenient for the welding robot to weld the workpiece.

[0038] When the frame 3 tilts to the left of the base 1, the frame 3 will push the connecting rod 83 downward, causing the connecting rod 83 to push the slider 82 downward. At this time, the slider 82 will slide downward on the outer wall of the guide table 2. While the slider 82 slides downward, it will push the connecting rod 84, causing the connecting rod 84 to push the support plate 81. At this time, the support plate 81 will slide on the inner wall of the base 1 and gradually slide out of the base 1. At this time, the support area on the left side of the base 1 can be expanded by using the support plate 81, so that the base 1 can remain stable when the frame 3 tilts to the left, thereby ensuring the stability of the workpiece during the flipping process.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-angle flexible positioner for a welding robot, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a guide platform (2), the inner wall of the guide platform (2) is slidably connected to a frame (3), the top inner wall of the frame (3) is hinged to a platform (4), the inner wall of the platform (4) is rotatably connected to a three-jaw chuck (5), an adjustment mechanism is provided above the base (1), and a support mechanism (8) is provided inside the base (1). The adjustment mechanism includes a flipping assembly (6), which includes a slide rod (61). The slide rod (61) passes through and is slidably connected to the inner wall of the guide platform (2). A fixed shaft (62) is fixedly connected to the side wall of the slide rod (61). A threaded sleeve (63) is fixedly connected to the bottom of the slide rod (61). A hollow rod (64) is fixedly connected to the bottom of the frame (3). A No. 1 motor (65) is fixedly connected to the outer wall of the guide platform (2). A threaded rod (66) is fixedly connected to the output end of the No. 1 motor (65). A hydraulic cylinder (67) is hinged to the top of the inner wall of the frame (3). A push rod (68) is fixedly connected to the outer wall of the machine platform (4).

2. The multi-angle flexible positioner for a welding robot according to claim 1, characterized in that: The adjustment mechanism also includes a rotating component (7), which includes a second motor (71). The second motor (71) is fixedly connected to the bottom of the machine base (4). The output end of the second motor (71) is fixedly connected to a rotating shaft (72). The end of the rotating shaft (72) away from the second motor (71) passes through the machine base (4) and is fixedly connected to the bottom of the three-jaw chuck (5).

3. The multi-angle flexible positioner for a welding robot according to claim 1, characterized in that: The support mechanism (8) includes a support plate (81) which is slidably connected to the inner wall of the base (1) and has an "L" shaped cross-section.

4. The multi-angle flexible positioner for a welding robot according to claim 1, characterized in that: The outer wall of the guide platform (2) is slidably connected to a slider (82).

5. The multi-angle flexible positioner for a welding robot according to claim 4, characterized in that: The top of the slider (82) is hinged to a connecting rod (83), and the end of the connecting rod (83) away from the slider (82) is hinged to the side wall of the frame (3).

6. The multi-angle flexible positioner for a welding robot according to claim 4, characterized in that: The bottom of the slider (82) is hinged to a connecting rod (84), and the end of the connecting rod (84) away from the slider (82) is hinged to the upper surface of the support plate (81).

7. The multi-angle flexible positioner for a welding robot according to claim 1, characterized in that: The hollow rod (64) is a hollow rod-shaped structure, and the outer wall of the fixed shaft (62) is attached to the inner wall of the hollow rod (64).

8. The multi-angle flexible positioner for a welding robot according to claim 1, characterized in that: The piston rod of the hydraulic cylinder (67) is hinged to the bottom end of the push rod (68), and the threaded rod (66) is threadedly connected to the threaded sleeve (63).

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