Welding robot capable of cleaning weld joints

Abstract

The utility model discloses a welding robot capable of cleaning a welding seam in the technical field of welding robots, which comprises a welding robot main body, a welding gun is arranged on the main body, a welding seam cleaning assembly is mounted on the welding gun, and the welding seam cleaning assembly comprises a fixed seat mounted on the welding gun. A grinding assembly is installed on the fixing base and comprises two grinding wheels used for being suitable for grinding of different welding seams, adjusting rods are installed at the other ends of the grinding wheels, and an angle adjusting assembly used for grinding and cleaning of the welding seams of different sizes is arranged between the two adjusting rods. The welding robot solves the problems that an existing welding robot cannot clean the surface of a welding seam, if the rusty welding seam is not treated, the welding face is prone to being peeled off from a workpiece, the welding seam is different in size and shape, a single grinding wheel cannot ensure that the welding seam is cleaned thoroughly, and the working efficiency is high. And the welding seam needs to be treated for multiple times when being cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of welding robot production, in particular to a welding robot capable of cleaning welds. Background Art

[0002] A welding robot is an industrial robot that performs welding (including cutting and spraying). According to the International Organization for Standardization's standard definition of an industrial robot, it is a multi-purpose, reprogrammable, automatically controlled manipulator with three or more programmable axes, used in industrial automation. To accommodate various applications, the robot's final axis typically features a mechanical interface, typically a flange, that accepts various tools, or end effectors. A welding robot is designed to attach welding tongs or welding (cutting) guns to the final axis flange, enabling it to perform welding, cutting, or thermal spraying.

[0003] When welding a workpiece, a welding robot needs to clean the weld in advance. However, existing welding robots are unable to clean the weld surface. If the rusted weld is not treated, the weld surface will easily peel off from the workpiece. In addition, the size and shape of the weld are different. A single grinding wheel cannot ensure that the weld is clean. Multiple treatments are required when cleaning the weld.

[0004] Therefore, those skilled in the art provide a welding robot capable of cleaning welds to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the utility model is to provide a welding robot capable of cleaning welds, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present utility model provides the following technical solutions: a welding robot capable of cleaning welds, comprising a welding robot body, a welding gun being provided on the body, a weld cleaning assembly being installed on the welding gun, the weld cleaning assembly comprising a fixed seat being installed on the welding gun, a grinding assembly being installed on the fixed seat, the grinding assembly comprising two grinding wheels for adapting to grinding different welds, an adjusting rod being installed at the other end of the grinding wheel, and an angle adjustment assembly for grinding and cleaning welds of different sizes being provided between the two adjusting rods.

[0007] Preferably: the angle adjustment assembly includes a positioning seat installed on the fixed seat, the positioning seat is provided with a mounting bracket connected to the adjusting rod, the mounting bracket is provided with two arc grooves with the end of the grinding wheel as the axis, the two grinding wheels are staggered, and a moving block matching the arc groove is installed on the mounting bracket, the moving block is slidably connected to the arc groove, and a support member is provided between the mounting bracket and the positioning seat.

[0008] Preferably, an arc block is installed on the side of the moving block facing the arc groove, the arc block is coaxial with the arc groove, and the arc block is slidably connected to the arc groove.

[0009] Preferably, a turntable is installed at one end of the positioning seat, two support plates are connected to the eccentric portion of the turntable, and the other end of the support plate is sleeved on the other end of the adjusting rod.

[0010] Preferably, a gear is installed on one side of the turntable, and a rack matched with the gear is installed on the positioning seat.

[0011] Preferably, the expansion member includes a spring installed between the mounting frame and the moving block, a curved rod is installed on a side of the moving block facing the spring, and the spring is located outside the curved rod.

[0012] Preferably, a guide block is installed at the bottom of the fixing seat, a guide groove is provided on the positioning seat, a limit plate is installed at one end of the fixing seat, and a telescopic rod is installed between the limit plate and the positioning seat.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the utility model, two grinding wheels are provided, the grinding wheels are connected to the adjusting rod, and the turntable is connected to the adjusting rod through the support plate. Rotating the turntable can drive the two adjusting rods to rotate through the support plate, so that a certain angle can be formed between the two grinding wheels, so that the sides of the two grinding wheels that are far away from each other can contact the weld, which can ensure the stable cleaning of the weld and can clean the weld at one time. After the weld is cleaned, welding can be carried out, which is convenient to use.

[0015] 2. In the present invention, the positioning seat is connected to the limit plate through a telescopic rod. The telescopic rod can drive the positioning seat to move forward and backward, and can adjust the position of the grinding wheel according to the distance between the grinding wheel and the weld, avoiding the problem that the grinding wheel cannot clean the weld due to excessive change in the welding gun angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle.

[0018] Figure 3 For this utility model Figure 2 Enlarged view of point B in the middle.

[0019] Figure 4 It is a side view of the utility model.

[0020] Figure 5 For this utility model Figure 4 Schematic diagram of the three-dimensional cross-section at AA in the middle.

[0021] Figure 6 For the utility model Figure 5 Enlarged view of point C in the middle.

[0022] Figure 7 This is a schematic diagram of the principle of using two grinding wheels to grind welds in the present utility model.

[0023] In the figure: 1. Main body; 2. Welding gun; 3. Fixed seat; 4. Grinding wheel; 5. Adjusting rod; 6. Positioning seat; 7. Mounting frame; 8. Arc groove; 9. Moving block; 10. Arc block; 11. Turntable; 12. Support plate; 13. Gear; 14. Rack; 15. Spring; 16. Arc rod; 17. Guide block; 18. Guide groove; 19. Limiting plate; 20. Telescopic rod; 21. Anti-slip plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1 to 7 In an embodiment of the present invention, a welding robot capable of cleaning welds includes a welding robot body 1, a welding gun 2 is provided on the body 1, a weld cleaning assembly is installed on the welding gun 2, the weld cleaning assembly includes a fixed seat 3 installed on the welding gun 2, a grinding assembly is installed on the fixed seat 3, the grinding assembly includes two grinding wheels 4 for adapting to different weld grinding, an adjusting rod 5 is installed at the other end of the grinding wheel 4, an angle adjustment assembly for grinding and cleaning welds of different sizes is provided between the two adjusting rods 5, the angle adjustment assembly It includes a positioning seat 6 installed on the fixed seat 3, and the positioning seat 6 is provided with a mounting frame 7 connected to the adjusting rod 5. The mounting frame 7 is provided with two arc grooves 8 with the end of the grinding wheel 4 as the axis. The two grinding wheels 4 are staggered. A moving block 9 is installed on the mounting frame 7 to match the arc groove 8. The moving block 9 is slidably connected to the arc groove 8. A support member is provided between the mounting frame 7 and the positioning seat 6. The moving block 9 is installed with an arc block 10 on the side facing the arc groove 8. The arc block 10 is coaxial with the arc groove 8 and is slidably connected to the arc groove 8.

[0026] The main body 1 is a common welding robot on the market. The welding gun 2 is located on the welding robot main body 1. The fixed seat 3 is installed at the bottom of the welding gun 2. There are two grinding wheels 4. The grinding wheel 4 is driven by a motor. The adjusting rod 5 is coaxial with the grinding wheel 4. The positioning seat 6 is installed on the fixed seat 3. The mounting frame 7 is located at the bottom of the positioning seat 6. The arc groove 8 is opened on the mounting frame 7. The moving block 9 is fixedly connected to the adjusting rod 5. The arc block 10 is installed on one side of the moving block 9. The arc block 10 can slide in the arc groove 8. The two grinding wheels 4 slide on the arc groove 8 through the moving block 9 on the adjusting rod 5 to adjust the angle. The two grinding wheels 4 can process different welds to avoid the problem of the welding part falling off due to insufficient grinding of the weld.

[0027] In one embodiment, specifically, a turntable 11 is installed at one end of the positioning seat 6, and two support plates 12 are connected to the eccentric part of the turntable 11. The other end of the support plate 12 is sleeved on the other end of the adjusting rod 5. A gear 13 is installed on one side of the turntable 11, and a rack 14 matching the gear 13 is installed on the positioning seat 6. The turntable 11 is installed at one end of the positioning seat 6, and the support plate 12 is hinged to the turntable 11. The other end of the support plate 12 is connected to the tail end of the adjusting rod 5. There is a large gap between the other end of the support plate 12 and the tail end of the adjusting rod 5, which can prevent the adjusting rod 5 from being stuck by the support plate 12 due to angle changes. The gear 13 is coaxial with the turntable 11, and the rack 14 is engaged with the gear 13. The movement of the rack 14 can use an electric push rod as power. The movement of the rack 14 can drive the turntable 11 to rotate through the gear 13, which can conveniently adjust the angle between the two adjusting rods 5 and adapt to different welds.

[0028] Among them, the expansion member includes a spring 15 installed between the mounting frame 7 and the moving block 9, and the moving block 9 is installed with an arc rod 16 on the side facing the spring 15. The spring 15 is located on the outside of the arc rod 16. The spring 15 is installed between the mounting frame 7 and the moving block 9. The arc rod 16 is fixed to the moving block 9. The arc rod 16 can prevent the spring 15 from deforming, and can further guide the angle adjustment of the moving rod, thereby facilitating the adjustment of the grinding wheel 4.

[0029] On the basis of the above embodiment, specifically, a guide block 17 is installed at the bottom of the fixed seat 3, a guide groove 18 is provided on the positioning seat 6, a limit plate 19 is installed at one end of the fixed seat 3, and a telescopic rod 20 is installed between the limit plate 19 and the positioning seat 6. The guide block 17 is installed at the bottom of the fixed seat 3, the guide groove 18 is opened on the positioning seat 6, the limit plate 19 is installed at one end of the fixed seat 3, and the telescopic rod 20 is located between the limit plate 19 and the positioning seat 6. The telescopic rod 20 can be purchased directly from the market. The telescopic rod 20 can drive the grinding wheel 4 to move through the positioning seat 6, so as to facilitate the adjustment of the position of the grinding wheel 4.

[0030] When using this welding robot body 1 to weld the workpiece, first adjust the angle between the two grinding wheels 4 according to the size and shape of the weld so that both sides of the weld can be ground. The ground weld will be welded by the welding gun 2. When adjusting the angle between the grinding wheels 4, first drive the gear 13 to rotate through the rack 14, and the gear 13 will drive the turntable 11 to rotate. The rotation of the turntable 11 will drive the two adjusting rods 5 to move through the support plate 12. Since the arc block 10 is fixed to the moving block 9, the common axis of the arc block 10 and the arc groove 8 is located at the end of the grinding wheel 4. During the movement of the support plate 12, the angle between the two adjusting rods 5 will change until the two grinding wheels 4 can fully grind the weld without excessively damaging the workpiece. During the welding process, the position of the positioning seat 6 can be adjusted by the telescopic rod 20 to keep the distance between the grinding wheel 4 and the weld stable.

[0031] In one embodiment, specifically, an anti-slip plate 21 is installed at the bottom end of the fixing plate. The anti-slip plate 21 is arranged opposite to the limiting plate 19 to prevent the positioning seat 6 from slipping.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding robot capable of cleaning welds, characterized in that: The invention comprises a welding robot body (1), wherein the body (1) is provided with a welding gun (2), the welding gun (2) is provided with a weld cleaning assembly, the weld cleaning assembly comprises a fixing seat (3) installed on the welding gun (2), the fixing seat (3) is provided with a grinding assembly, the grinding assembly comprises two grinding wheels (4) for adapting to different weld grinding, and the other end of the grinding wheel (4) is provided with an adjusting rod (5); An angle adjustment component for grinding and cleaning welds of different sizes is provided between the two adjustment rods (5).

2. A welding robot capable of cleaning welds according to claim 1, characterized in that: The angle adjustment assembly comprises a positioning seat (6) mounted on a fixed seat (3); a mounting frame (7) connected to an adjusting rod (5) is provided on the positioning seat (6); two arc grooves (8) with the ends of the grinding wheels (4) as axis centers are provided on the mounting frame (7); the two grinding wheels (4) are staggered; a moving block (9) matched with the arc groove (8) is mounted on the mounting frame (7); the moving block (9) is slidably connected to the arc groove (8); and a support member is provided between the mounting frame (7) and the positioning seat (6).

3. The welding robot capable of cleaning welds according to claim 2, characterized in that: An arc block (10) is installed on the side of the moving block (9) facing the arc groove (8), the arc block (10) is coaxial with the arc groove (8), and the arc block (10) is slidably connected to the arc groove (8).

4. The welding robot capable of cleaning welds according to claim 3, characterized in that: A turntable (11) is installed at one end of the positioning seat (6), and two support plates (12) are connected to the eccentric position of the turntable (11). The other end of the support plate (12) is sleeved on the other end of the adjusting rod (5).

5. The welding robot capable of cleaning welds according to claim 4, characterized in that: A gear (13) is installed on one side of the rotating disk (11), and a rack (14) matched with the gear (13) is installed on the positioning seat (6).

6. The welding robot capable of cleaning welds according to claim 5, characterized in that: The expansion member comprises a spring (15) installed between the mounting frame (7) and the moving block (9); a curved rod (16) is installed on the side of the moving block (9) facing the spring (15); and the spring (15) is located outside the curved rod (16).

7. The welding robot capable of cleaning welds according to claim 6, characterized in that: A guide block (17) is installed at the bottom of the fixing seat (3), a guide groove (18) is provided on the positioning seat (6), a limit plate (19) is installed at one end of the fixing seat (3), and a telescopic rod (20) is installed between the limit plate (19) and the positioning seat (6).

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