Chain wheel welding repair station

Abstract

The utility model discloses a chain wheel welding repair station which comprises a positioner used for limiting a chain wheel and adjusting the angle of the chain wheel and a welding robot with a welding gun fixed to the end and used for welding and repairing the abraded position of the chain wheel. The position changing machine comprises a position changing machine frame, a main motor arranged on the position changing machine frame and an installation frame driven by the main motor to rotate, the installation frame comprises a vertical part fixed to an output shaft of the main motor and a horizontal part provided with a chuck, the horizontal part and the vertical part are perpendicularly arranged, the chuck is used for bearing and fixing a chain wheel, and the chuck is used for bearing and fixing the chain wheel. The horizontal part is provided with a rotating motor for driving the chuck to rotate; according to the chain wheel welding repair station, the position changing machine is adopted, the position and the rotating angle of the chain wheel can be rapidly adjusted, the welding gun can be accurately aligned to the abrasion position of the chain wheel in cooperation with the welding robot, welding surface materials are directly supplemented to the abrasion position of the chain wheel, rapid repair of the chain wheel is achieved, the repair period is shortened, and the repair cost is reduced.

Description

Technical Field

[0001] The utility model relates to welding technology, in particular to a sprocket welding repair station. Background Art

[0002] A sprocket is a wheel with cog-type sprocket teeth, which is used to mesh with a block with accurate pitch on a link chain or cable. Sprockets are widely used in mechanical transmission in various industries; for sprockets used for economical general mining and transportation of medium and low thick coal seams, since the chain inevitably comes into contact with coal powder, a small amount of coal powder adheres to it and is brought to the contact point of the sprocket chain nest. The coal powder contains a small amount of sharp and hard sand, which will cause the sprocket surface material to fall off during the friction process, causing abrasive wear. When the sprocket is severely worn, the surface material of the worn part of the sprocket needs to be replenished and welded for repair;

[0003] Existing sprocket welding repairs generally scan the worn areas, machine the worn areas, remove excess surface material, and then weld and repair the sprocket. Although the repair effect is good, due to the good wear resistance of the surface material, machining the worn areas takes a long time and has high requirements for machining tools. The sprocket cannot be repaired quickly, resulting in a long repair period and high repair cost. Utility Model Content

[0004] In order to solve the defects of the above-mentioned prior art, the utility model provides a sprocket welding repair station, which can directly supplement the welding surface material at the worn part of the sprocket and quickly repair the sprocket.

[0005] To achieve the above technical objectives, the utility model adopts the following technical solutions: a sprocket welding and repair station, comprising a positioner for limiting the sprocket and adjusting the angle of the sprocket and a welding robot with a welding gun fixed at the end and used to weld and repair the worn parts of the sprocket, the positioner comprising a positioner frame, a main motor arranged on the positioner frame and a mounting frame driven to rotate by the main motor, the mounting frame comprising a vertical portion fixed to the output shaft of the main motor and a horizontal portion provided with a chuck, the horizontal portion and the vertical portion are vertically arranged, the chuck is used to carry and fix the sprocket, and the horizontal portion is provided with a rotating motor for driving the chuck to rotate.

[0006] Preferably, the welding gun is located above the sprocket.

[0007] Preferably, the welding robot is a 6-joint robot.

[0008] Preferably, a fixing frame is provided on the positioner frame, and a receiving groove for receiving a welding gun is provided on the fixing frame.

[0009] Preferably, it also includes a gun cleaning rack, and both the gun cleaning rack and the positioner rack are provided with a gun cleaning mechanism, the gun cleaning mechanism includes a clamping claw for clamping the welding gun, a limiting cover for guiding and limiting the welding gun is provided below the clamping claw, an air pipe for removing the remaining solder on the welding head of the welding gun is provided below the limiting cover, and a waste box for receiving the remaining solder on the welding head is provided below the air pipe.

[0010] Preferably, the welding gun comprises a coarse welding gun and a fine welding gun, and the size of the welding rod used by the coarse welding gun is larger than that of the welding rod used by the fine welding gun.

[0011] Preferably, it further comprises a gun changing mechanism, wherein the gun changing mechanism comprises a gun changing frame, a material box and two brackets are provided on the top of the gun changing frame, the material box contains welding rods, and the two brackets respectively contain a coarse welding gun and a fine welding gun.

[0012] Preferably, the gun changing rack and the positioner rack are equipped with a grinding head, the welding robot cooperates with the grinding head, and the grinding head is used to grind the welding slag, welding flux and oxide scale on the surface of the sprocket after welding.

[0013] In summary, the utility model has achieved the following technical effects:

[0014] The sprocket welding repair station of the utility model adopts a positioner to quickly adjust the position and rotation angle of the sprocket, and cooperates with a welding robot to accurately align the welding gun with the worn part of the sprocket, so as to directly supplement the welding surface material of the worn part of the sprocket, realize rapid repair of the sprocket, shorten the repair period, and reduce the repair cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a sprocket welding repair station of the utility model;

[0016] Figure 2 It is a structural schematic diagram of a sprocket of a sprocket welding and repairing station of the utility model being installed on a positioner;

[0017] Figure 3 It is a structural schematic diagram of the gun changing mechanism of the sprocket welding repair station of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the gun cleaning mechanism of the sprocket welding repair station of the utility model;

[0019] Explanation of the reference numerals in the accompanying drawings in the specification: 1. Positioner; 11. Main motor; 12. Mounting frame; 13. Rotating motor; 14. Chuck; 15. Rough welding gun; 16. Gun cleaning mechanism; 17. Grinding head; 18. Positioner frame; 2. Welding robot; 3. Gun changing frame; 31. Bracket; 32. Fine welding gun; 33. Material box; 4. Gun cleaning frame; 41. Clamp; 42. Limit cover; 43. Waste box; 44. Air pipe; 5. Sprocket. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] Embodiment 1:

[0027] like Figure 1 The sprocket 5 welding repair station comprises a positioner for limiting the sprocket 5 and adjusting the angle of the sprocket 5, a welding robot 2 with a welding gun fixed at the end and used for welding and repairing the worn part of the sprocket 5, a gun cleaning rack 4 and a gun changing mechanism;

[0028] like Figure 2 As shown, the positioner 1 includes a positioner frame 18, a main motor 11 arranged on the positioner frame 18, and a mounting frame 12 driven to rotate by the main motor 11, the mounting frame 12 includes a vertical portion fixed to the output shaft of the main motor 11 and a horizontal portion provided with a chuck 14, the horizontal portion and the vertical portion are vertically arranged, the chuck 14 is used to carry and fix the sprocket 5, and the horizontal portion is provided with a rotating motor 13 that drives the chuck 14 to rotate.

[0029] like Figure 3 As shown, the gun changing mechanism includes a gun changing frame 3, and a material box 33 and two brackets 31 are provided on the top of the gun changing frame 3. The material box 33 contains welding rods, and the two brackets 31 respectively contain the rough welding gun 15 and the fine welding gun 32.

[0030] like Figure 4 As shown, a gun cleaning mechanism 16 is provided on the gun cleaning frame 4 and the positioner frame 18, and the gun cleaning mechanism 16 includes a clamping jaw 41 for clamping the welding gun 15, a limiting cover 42 for guiding and limiting the welding gun is provided below the clamping jaw 41, an air pipe 44 for removing the remaining solder on the welding head of the welding gun is provided below the limiting cover 42, and a waste box 43 for receiving the remaining solder on the welding head is provided below the air pipe 44.

[0031] The welding gun includes a coarse welding gun 15 and a fine welding gun 32. The size of the welding rod used by the coarse welding gun 15 is larger than that used by the fine welding gun 32. When repairing, the coarse welding gun 15 is first used to quickly repair the worn part of the sprocket 5 to improve the overall repair efficiency, and then the fine welding gun 32 is used to accurately repair the coarse welding part, which is beneficial to the forming of the worn part and improves the welding repair accuracy.

[0032] Working principle: First, the worker uses a 3D scanner to scan the damaged sprocket 5, and fits and compares the scanned stl data with the original size data of the sprocket 5. This data can be used to obtain the difference between the part and shape data that need to be added, and then the welding and filling operation is carried out. The sprocket 5 to be repaired is fixed on the chuck 14. According to the position of the worn part of the sprocket 5, the positioner 1 adjusts the position and angle of the sprocket 5. The welding robot 2 uses the rough welding gun 15 to align the worn part of the sprocket 5, the part and shape data that need to be added, and quickly fills the worn part of the sprocket 5. After the part of the added material is initially formed, the welding robot 2 places the rough welding gun 15 on the gun cleaning mechanism 16 on the positioner frame 18 to clean the gun, and then cleans the gun. The rough welding gun 15 behind the gun is limited to the fixed frame to improve the overall repair efficiency. Then the welding robot 2 grabs the fine welding gun 32 from the gun changing mechanism, and uses the fine welding gun 32 to perform precise filling welding on the rough welding. After the additive part is finally formed, the welding robot 2 places the fine welding gun 32 on the gun cleaning mechanism 16 on the gun cleaning frame 4 to clean the gun, and the fine welding gun 32 after cleaning is limited to the gun changing frame 3, which is conducive to the forming of the worn part and improves the welding repair accuracy; repeat the above welding operation to weld and repair all the worn parts on the sprocket 5; finally, the positioner 1 moves the sprocket 5 to the grinding head 17, grinds the excess solder and burrs after the repair of the sprocket 5, further removes errors, and improves the repair accuracy.

[0033] Always keep the welding gun above the sprocket 5 to prevent the solder from falling from the worn part of the sprocket 5.

[0034] The welding robot 2 is a 6-joint robot.

[0035] A fixing frame is provided on the positioner frame 18, and a receiving slot for receiving a welding gun is provided on the fixing frame.

[0036] The gun changing frame 3 and the positioner frame 18 are both provided with a grinding head 17. After being refined, the robot uses a quick-change mechanism to replace the welding gun with the grinding head 17, and then performs grinding to remove welding slag, welding flux and oxide scale on the surface of the grinding sprocket 5.

[0037] The sprocket 5 welding repair station of the present embodiment adopts a positioner 1, which can quickly adjust the position and rotation angle of the sprocket 5, and cooperates with the welding robot 2 to accurately align the welding gun with the worn part of the sprocket 5, so as to directly supplement the welding surface material of the worn part of the sprocket 5, realize the rapid repair of the sprocket 5, shorten the repair period, and reduce the repair cost.

[0038] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A sprocket welding repair station, It is characterized in that include A positioner, used to limit the sprocket and adjust the angle of the sprocket, the positioner includes a positioner frame, a main motor arranged on the positioner frame and a mounting frame driven by the main motor to rotate, the mounting frame includes a vertical portion fixed to the output shaft of the main motor and a horizontal portion provided with a clamping disc, the horizontal portion and the vertical portion are arranged vertically, the clamping disc is used to carry and fix the sprocket, and the horizontal portion is provided with a rotating motor driving the clamping disc to rotate; A welding robot, with a welding gun fixed at the end and used for welding and repairing the worn parts of the sprocket; A gun cleaning rack, wherein the gun cleaning rack and the positioner rack are both provided with a gun cleaning mechanism, wherein the gun cleaning mechanism comprises a clamping jaw for clamping the welding gun, a limiting cover for guiding and limiting the welding gun is provided below the clamping jaw, an air pipe for removing the remaining solder on the welding head of the welding gun is provided below the limiting cover, and a waste box for receiving the remaining solder on the welding head is provided below the air pipe; The gun changing mechanism comprises a gun changing frame, a material box and two brackets are arranged on the top of the gun changing frame, the material box contains welding rods, and the two brackets respectively contain a rough welding gun and a fine welding gun.

2. A sprocket welding repair station according to claim 1, It is characterized in that The welding gun is located above the sprocket.

3. A sprocket welding repair station according to claim 1, It is characterized in that The welding robot is a 6-joint robot.

4. A sprocket welding repair station according to claim 1, It is characterized in that A fixing frame is arranged on the positioner frame, and a receiving groove for receiving a welding gun is arranged on the fixing frame.

5. A sprocket welding repair station according to claim 1, It is characterized in that The welding gun comprises a coarse welding gun and a fine welding gun, and the size of the welding rod used by the coarse welding gun is larger than that of the welding rod used by the fine welding gun.

6. A sprocket welding repair station according to claim 1, It is characterized in that The gun changing rack and the positioner rack are equipped with a grinding head, the welding robot cooperates with the grinding head, and the grinding head is used to grind the welding slag, welding flux and oxide scale on the surface of the sprocket after welding.

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