Maintenance welding device based on industrial robot
By using the linkage structure between the lifting slider and the buffer cover, combined with the return spring and the contact roller, the problem of stable contact of the robotic arm when the welding surface is a concave-convex arc surface is solved, reducing costs and improving welding efficiency and stability.
Patent Information
- Application Number
- CN202422991016.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-04
AI Technical Summary
In the existing technology, when the welding surface is a component with a concave-convex arc surface, the robotic arm needs to use multiple coordination of the relative angle sensors between the upper arm and the lower arm to ensure stable contact between the welding gun and the concave-convex arc surface, which is technically difficult and costly.
A maintenance welding device based on an industrial robot was designed. It adopts a linkage structure of lifting slider and buffer cover, combined with return spring and contact roller. Through the displacement and swing of the buffer cover, stable contact between the welding torch head and the concave and convex curved parts is achieved, reducing the dependence on sensors and reducing the cost of the robotic arm.
It simplifies the welding process, reduces the cost of robotic arms, and improves welding stability and efficiency by reducing damage to the welding head through contact rollers.
Smart Images
Figure CN223455362U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to welding maintenance technical field, specifically speaking, a kind of maintenance welding device based on industrial robot. BACKGROUND
[0002] Industrial robot is a kind of intelligent machine capable of semi-autonomous or fully autonomous work, with the basic characteristics of perception, decision-making, execution etc. They perform various tasks such as movement, grabbing, placing, etc. through programming and automatic control. In the field of maintenance welding, industrial robots can replace humans to complete dangerous, heavy and complex work, improve work efficiency and quality, and expand or extend the range of human activities and capabilities.
[0003] At present, in the prior art, the industrial robot for welding moves by the contact of the welding gun at one end of the mechanical arm with the welding surface, realizing the maintenance welding of the welding surface. When the welding surface is a component with concave-convex curved surface, the mechanical arm needs to be cooperated with multiple relative angle sensors between the large arm and the small arm to ensure the stable contact of the welding gun with the concave-convex curved surface, which has high technical difficulty and high cost requirement for the mechanical arm.
[0004] Therefore, a maintenance welding device based on industrial robot is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL
[0005] In order to make up for the deficiencies of the prior art, solve the problem that when the welding surface is a component with concave-convex curved surface, the mechanical arm needs to be cooperated with multiple relative angle sensors between the large arm and the small arm to ensure the stable contact of the welding gun with the concave-convex curved surface, which has high technical difficulty and high cost requirement for the mechanical arm, a maintenance welding device based on industrial robot is proposed.
[0006] The utility model solves the technical scheme that the utility model discloses a kind of maintenance welding device based on industrial robot, including welding gun seat, the side wall of welding gun seat is fixedly connected with lifting slide block, buffer cover is slidably installed outside lifting slide block, reset spring is installed in the inner wall of buffer cover, one end of reset spring is in contact with the top surface of lifting slide block, welding gun head is installed on the bottom surface of lifting slide block, one end of welding gun head penetrates the outside of buffer cover, one side of lifting slide block is fixedly connected with limit slide block, door type frame is slidably installed on the outer wall of limit slide block, contact roller is clamped by circular slot on the both end surfaces of door type frame.
[0007] Preferably, the side wall of the first N-shaped frame away from the buffer cover is fixedly connected with a first N-shaped frame, a through hole is formed in the center of the side wall of the first N-shaped frame, and a second N-shaped frame is fixedly connected below the other side wall of the door type frame.
[0008] Preferably, the limiting sliding block side wall is provided with a first limiting circular groove, the first limiting circular groove is located in the projection of the through hole, and the buffer cover is symmetrically provided with a second limiting circular groove above the side wall away from the welding gun seat.
[0009] Preferably, the limiting sliding block is provided with a limiting assembly on one side, the limiting assembly comprises a U-shaped handle, and one end of the outer wall of the U-shaped handle is clamped with the first limiting circular groove through the through hole.
[0010] Preferably, the outer wall of the U-shaped handle is fixedly connected with a limiting circular plate at the edge of one end, the outer wall of the U-shaped handle is sleeved with an extrusion spring, and the extrusion spring is located between the limiting circular plate and the adjacent side wall of the U-shaped handle.
[0011] Preferably, the other end of the outer wall of the U-shaped handle is fixedly connected with a limiting side plate.
[0012] Preferably, the side walls of the limiting side plate are fixedly connected with limiting clamping columns at both ends, and the two limiting clamping columns can be clamped with the two second limiting circular grooves, respectively.
[0013] Preferably, the other end of the outer wall of the U-shaped handle is sleeved with a handle limiting frame, and the handle limiting frame is fixedly connected with the side wall of the door-shaped frame.
[0014] The utility model discloses beneficial effects:
[0015] In the utility model, the linkage between the welding gun seat and the buffer cover is realized through the mutual sliding between the lifting sliding block and the buffer cover, the buffer cover is controlled to displace and lift after being fixed on the mechanical arm, when the welding gun head of the welding gun seat needs to weld the concave-convex curved surface, the buffer cover needs to be pressed down as a whole to contact the welding surface and then continue to press down a certain distance, then the buffer cover swings with the mechanical arm to the concave-convex curved surface part, in this process, the reset spring can guarantee that the welding head is always in contact with the welding surface within a certain range of bending concave-convex, to a certain extent, the sensor control is replaced, the structure is simple, and the operation cost is low, and the contact roller can reduce the damage of the welding head under the condition that the buffer cover and the welding surface are not affected. ACCURACY OF DRAWINGS
[0016] The drawings described herein are used to provide further understanding of the utility model and constitute a part of the application, and the illustrative embodiments and the description thereof are used to explain the utility model, and do not constitute improper limitation to the utility model. In the drawings:
[0017] Figure 1 It is the perspective view of the utility model;
[0018] Figure 2 It is the perspective view of the welding gun seat in the utility model;
[0019] Figure 3 is a perspective view of the buffer cover in the utility model;
[0020] Figure 4 is a perspective view of the door-shaped frame and the limiting assembly in the utility model;
[0021] Legend:
[0022] 1, welding gun seat; 11, lifting sliding block; 2, buffer cover; 21, reset spring; 12, welding torch head; 13, limiting sliding block; 3, door-shaped frame; 4, contact roller; 31, first N-shaped frame; 32, through hole; 33, second N-shaped frame; 14, first limiting circular groove; 22, second limiting circular groove; 5, limiting assembly; 51, U-shaped handle; 52, limiting circular plate; 53, extrusion spring; 54, limiting side plate; 55, limiting clamping column; 56, handle limiting frame. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0024] The specific embodiments are given below.
[0025] Please refer to Figure 1 - Figure 4 The utility model provides a kind of maintenance welding device based on industrial robot, including welding gun seat 1, the side wall of welding gun seat 1 is fixedly connected with lifting sliding block 11, lifting sliding block 11 is slidably installed with buffer cover 2, the inner wall of buffer cover 2 is installed with reset spring 21, one end of reset spring 21 is in contact with the top surface of lifting sliding block 11, the bottom surface of lifting sliding block 11 is installed with welding torch head 12, one end of welding torch head 12 penetrates the outside of buffer cover 2, one side of lifting sliding block 11 is fixedly connected with limiting sliding block 13, limiting sliding block 13 is slidably installed with door-shaped frame 3 on its outer wall, the two end surfaces of door-shaped frame 3 are clamped with contact roller 4 by circular groove, lifting sliding block 11 and buffer cover 2 are slidably installed, and buffer cover 2 is fixed on mechanical arm and is controlled displacement lifting after being fixed, when welding torch head 12 of welding gun seat 1 needs to be welded to concave-convex curved surface, control buffer cover 2 is needed to be pressed down as a whole and be in contact with welding surface, then continue to press down a certain distance, then buffer cover 2 follows mechanical arm swing and is welded to concave-convex curved surface part, in the process, reset spring 21 can guarantee that welding torch head 12 is always in contact with welding surface within a certain range of bending concave-convex, wherein contact roller 4 can reduce the damage to welding head while not affecting the contact movement of buffer cover 2 and welding surface.
[0026] As shown in Figure 1 , Figure 2 and Figure 4 , the first N-shaped frame 31 is fixed to the side wall of the door-shaped frame 3 away from the buffer cover 2, a through hole 32 is formed in the center of the side wall of the first N-shaped frame 31, the second N-shaped frame 33 is fixed to the lower side wall of the other side of the door-shaped frame 3, the first limiting circular groove 14 is formed in the side wall of the limiting sliding block 13, the first limiting circular groove 14 is located in the projection of the through hole 32, and the second limiting circular groove 22 is symmetrically formed in the upper side wall of the buffer cover 2 away from the welding gun seat 1.
[0027] When working, the door-shaped frame 3 slidingly installed outside the limiting sliding block 13 is installed on the limiting assembly 5 through the cooperation between the first N-shaped frame 31 and the through hole 32, and the first limiting circular groove 14 and the second limiting circular groove 22 can be linked with the limiting assembly 5 in different states.
[0028] As shown in Figure 2 and Figure 4 , the limiting sliding block 13 is provided with a limiting assembly 5, the limiting assembly 5 includes a U-shaped handle 51, one end of the outer wall of the U-shaped handle 51 is clamped with the first limiting circular groove 14 through the through hole 32, the outer wall of the U-shaped handle 51 is fixed with a limiting circular plate 52 at the edge of one end, and the outer wall of the U-shaped handle is sleeved with an extrusion spring 53, and the extrusion spring 53 is located between the limiting circular plate 52 and the adjacent side wall of the U-shaped handle 51.
[0029] When working, one end of the U-shaped handle 51 is clamped with the first limiting circular groove 14 through the through hole 32, and the door-shaped frame 3 is limited to the limiting assembly 5, at this time, the door-shaped frame 3 and the limiting assembly 5 cannot move relative to each other, the buffer cover 2 can be adjusted in displacement to a certain extent through the extension of the return spring 21, and the change of the relative height of the concave-convex surface is adapted, and the extrusion spring 53 between the first N-shaped frame 31 and the limiting circular plate 52 provides elastic force for the clamping of one end of the U-shaped handle 51 to the first limiting circular groove 14.
[0030] As shown in Figure 1 and Figure 4 , the other end of the outer wall of the U-shaped handle 51 is fixed with a limiting side plate 54, the side walls of the limiting side plate 54 are fixed with limiting clamping columns 55 at both ends, the two limiting clamping columns 55 can be clamped with the two second limiting circular grooves 22 respectively, and the outer wall of the other end of the U-shaped handle 51 is sleeved with a handle limiting frame 56, and the handle limiting frame 56 is fixed with the side wall of the door-shaped frame 3.
[0031] When the U-shaped handle 51 is pulled outward to overcome the elastic force of the compression spring 53 and disengage from the first limiting circular groove 14, the whole U-shaped handle 51 is moved upward to overcome the elastic force of the reset spring 21, and the side wall limiting clamping column 55 of the limiting side plate 54 can be clamped with the second limiting circular groove 22, the buffering effect of the buffer cover 2 is achieved, at this time, the second N-shaped frame 33 can be limited with the lower part of the welding gun holder 1, the stability of the buffer cover 2 is increased, and the handle limiting frame 56 can increase the structural stability of the U-shaped handle 51.
[0032] Working principle: the lifting slider 11 is slidably installed with the buffer cover 2, and the buffer cover 2 is fixed on the mechanical arm and controlled to displace and lift by the mechanical arm, when the welding gun head 12 of the welding gun holder 1 needs to weld the concave-convex curved surface, the control buffer cover 2 needs to be pressed downward to contact the welding surface and continue to press a certain distance, then the buffer cover 2 swings with the mechanical arm to the concave-convex curved surface part, in this process, the reset spring 21 can ensure that the welding gun head 12 is always in contact with the welding surface within a certain range of bending concave-convex, the contact roller 4 can reduce the damage to the welding head while not affecting the contact movement of the buffer cover 2 and the welding surface, the door-shaped frame 3 installed outside the limiting slider 13 is installed with the limiting assembly 5 through the cooperation between the first N-shaped frame 31 and the through hole 32, the first limiting circular groove 14 and the second limiting circular groove 22 can be linked with the limiting assembly 5 in different states, one end of the U-shaped handle 51 is installed through the through hole 32 and the first limiting circular groove 14 to limit the limiting assembly 5, at this time, the door-shaped frame 3 and the limiting assembly 5 cannot move relative to each other, the buffer cover 2 can be adjusted in displacement to a certain extent through the extension and contraction of the reset spring 21 to adapt to the change of the relative height of the concave-convex surface, the elastic force of the compression spring 53 between the first N-shaped frame 31 and the limiting circular plate 52 provides elastic force for the one end of the U-shaped handle 51 to be clamped with the first limiting circular groove 14, when the U-shaped handle 51 is pulled outward to overcome the elastic force of the compression spring 53 and disengage from the first limiting circular groove 14, the whole U-shaped handle 51 is moved upward to overcome the elastic force of the reset spring 21, and the side wall limiting clamping column 55 of the limiting side plate 54 can be clamped with the second limiting circular groove 22, the buffering effect of the buffer cover 2 is achieved, at this time, the second N-shaped frame 33 can be limited with the lower part of the welding gun holder 1, the stability of the buffer cover 2 is increased, and the handle limiting frame 56 can increase the structural stability of the U-shaped handle 51.
[0033] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.
Claims
1. A repair welding apparatus based on an industrial robot, characterized in that: The application relates to a welding gun seat (1), a lifting slider (11) is fixed to the side wall of the welding gun seat (1), a buffer cover (2) is slidingly installed outside the lifting slider (11), a return spring (21) is installed on the inner wall of the buffer cover (2), one end of the return spring (21) is in contact with the top surface of the lifting slider (11), a welding gun head (12) is installed on the bottom surface of the lifting slider (11), one end of the welding gun head (12) penetrates the outside of the buffer cover (2), a limiting slider (13) is fixed to one side of the lifting slider (11), a door-shaped frame (3) is slidingly installed on the outer wall of the limiting slider (13), and contact rollers (4) are clamped on the two end faces of the door-shaped frame (3) through circular grooves.
2. A maintenance welding device based on an industrial robot according to claim 1, characterized in that A first N-shaped frame (31) is fixed to the side wall, away from the buffer cover (2), of the door-shaped frame (3), a through hole (32) is formed in the center of the side wall of the first N-shaped frame (31), and a second N-shaped frame (33) is fixed to the lower side wall of the other side of the door-shaped frame (3).
3. A maintenance welding device based on an industrial robot according to claim 2, characterized in that: A first limiting circular groove (14) is formed in the side wall of the limiting slider (13), the first limiting circular groove (14) is located in the projection of the through hole (32), and a second limiting circular groove (22) is symmetrically formed above the side wall, away from the welding gun seat (1), of the buffer cover (2).
4. A maintenance welding device based on an industrial robot according to claim 3, characterized in that: A limiting assembly (5) is arranged on one side of the limiting slider (13), the limiting assembly (5) comprises a U-shaped handle (51), and one end of the U-shaped handle (51) is clamped with the first limiting circular groove (14) through the through hole (32).
5. A maintenance welding device based on an industrial robot according to claim 4, characterized in that: A limiting circular plate (52) is fixed to the outer wall of the U-shaped handle (51) near the edge of one end, an extrusion spring (53) is sleeved on the outer wall of the U-shaped handle, and the extrusion spring (53) is located between the limiting circular plate (52) and the adjacent side wall of the U-shaped handle (51).
6. A maintenance welding device based on an industrial robot according to claim 5, characterized in that: The other end of the U-shaped handle (51) is fixed with a limiting side plate (54).
7. A maintenance welding device based on an industrial robot according to claim 6, characterized in that: Limiting clamping columns (55) are fixed to the side walls of the limiting side plate (54) at both ends, and the two limiting clamping columns (55) can be clamped with the two second limiting circular grooves (22) respectively.
8. A maintenance welding device based on an industrial robot according to claim 7, characterized in that: The other end of the U-shaped handle (51) is sleeved with a handle limiting frame (56), and the handle limiting frame (56) is fixed with the side wall of the door-shaped frame (3).