Welding robot suitable for metal welding

Abstract

The invention relates to the technical field of welding robots, and particularly discloses a welding robot suitable for metal welding, the welding robot comprises a supporting and positioning frame assembly, the top of the supporting and positioning frame assembly is fixedly connected with a mechanical arm assembly, and an adjusting and positioning assembly is installed on the outer side of the supporting and positioning frame assembly; the supporting and positioning frame assembly comprises a supporting and positioning plate, a hexagonal positioning frame is fixedly connected to the bottom of the supporting and positioning plate, and a square positioning hole is formed in the outer side of the hexagonal positioning frame; in the working process, when the welding robot needs to be positioned on the plane, the welding robot is directly positioned through the positioning bolts, the positioning work of the welding robot can be completed by installing the positioning plate at the bottom, and then angle adjustment of the welding gun can be achieved by rotating the second mechanical arm, the third mechanical arm and the fourth mechanical arm; and then welding work can be carried out, and a user can conveniently carry out moving and positioning work on the robot.

Description

Technical Field

[0001] This invention relates to the field of welding robot technology, and more specifically to a welding robot suitable for metal welding. Background Technology

[0002] With the rapid development of modern manufacturing, metal welding, as an important processing technology, places increasingly higher demands on the precision, efficiency, and adaptability of welding equipment. Welding robots, as core equipment in automated welding, play a vital role in improving welding quality, reducing labor intensity, and increasing production efficiency. However, existing welding robot technology still has many shortcomings in practical applications.

[0003] First, existing welding robots have significant shortcomings in positioning and movement. Traditional welding robot positioning methods are complex and cumbersome, requiring complex debugging and calibration processes to achieve accurate positioning on a plane. This not only consumes a lot of time, but also makes repositioning extremely difficult and inefficient when the robot needs to be moved to different working positions. Especially in production environments where frequent robot position adjustments are required, this positioning difficulty seriously affects production efficiency and increases the workload of operators.

[0004] Secondly, existing welding robots are poorly adapted to track welding applications. Although track welding is a common requirement in metal processing, existing welding robots lack effective track mounting mechanisms and parallel welding control systems. Traditional equipment cannot be easily mounted on track sliding devices, and even if it is mounted with difficulty, precise parallel welding control is hard to achieve, resulting in unstable welding quality and failing to meet the technical requirements of high-precision track welding. This technical limitation severely restricts the widespread application of welding robots in the field of track welding.

[0005] Finally, existing welding robots suffer from limited installation options and severely lack adaptability to diverse working environments. Traditional welding robots typically require fixed installation methods, unable to flexibly adjust their mounting configuration to meet varying work requirements. Particularly when mounting the equipment on positioning rods of different shapes and sizes, current technology lacks effective clamping and adaptation mechanisms, leading to installation difficulties and limiting its applicability. This limitation makes welding robots ill-suited to diverse production environments and process requirements, severely impacting the equipment's versatility and practicality.

[0006] Therefore, there is an urgent need to develop a new type of welding robot with convenient positioning, track adaptability and flexible installation capabilities to solve the above-mentioned problems in the existing technology, improve the efficiency and quality of welding operations, and meet the needs of modern manufacturing industry for high-performance welding equipment. Summary of the Invention

[0007] In order to overcome the above-mentioned defects of the prior art, the present invention provides a welding robot suitable for metal welding, so as to solve the problems existing in the background art.

[0008] This invention provides the following technical solution: a welding robot suitable for metal welding, comprising a support positioning frame assembly, a robotic arm assembly fixedly connected to the top of the support positioning frame assembly, an adjustment positioning assembly installed on the outer side of the support positioning frame assembly, the support positioning frame assembly including a support positioning plate, a hexagonal positioning frame fixedly connected to the bottom of the support positioning plate, a square positioning hole provided on the outer side of the hexagonal positioning frame, a positioning notch provided on the bottom of the support positioning plate, arc-shaped guide plates fixedly connected to both sides of the positioning notch, a convex sliding groove provided on the side of the arc-shaped guide plate, a first arc-shaped guide rod fixedly connected to the inner side of the convex sliding groove, and a second arc-shaped guide rod fixedly connected to the inner side of the convex sliding groove.

[0009] Furthermore, the robotic arm assembly includes a dual-axis motor, an upper shaft mounted on the top of the dual-axis motor, a lower shaft fixedly connected to the bottom of the upper shaft, a positioning plate fixedly connected to the top of the upper shaft, a first robotic arm fixedly connected to the top of the positioning plate, a second robotic arm fixedly mounted on the top of the first robotic arm, a gear fixedly connected to the bottom of the lower shaft, a first U-shaped positioning frame mounted on the side of the second robotic arm away from the first robotic arm, a third robotic arm mounted on the inner side of the first U-shaped positioning frame, a second U-shaped positioning frame fixedly connected to the side of the third robotic arm away from the first U-shaped positioning frame, a fourth robotic arm mounted on the inner side of the second U-shaped positioning frame, and a welding torch fixedly connected to the side of the fourth robotic arm away from the second U-shaped positioning frame.

[0010] Furthermore, the adjustment and positioning assembly includes a positioning clamping assembly. A hydraulic push assembly is mounted on the top of the positioning clamping assembly. The positioning clamping assembly includes a clamping plate body. Positioning push rods are fixedly connected to both sides of the clamping plate body. A first U-shaped positioning block is fixedly connected to the top of the clamping plate body. A first U-shaped positioning block is fixedly connected to the bottom of the clamping plate body. A second U-shaped positioning block is fixedly connected to the bottom of the clamping plate body. Teeth are formed on the front of the clamping plate body. Sliding positioning blocks are fixedly connected to both the top and bottom of the clamping plate body. A mounting positioning plate is fixedly connected to the side of the sliding positioning block. When the welding robot needs to be positioned on a plane during operation, it can be positioned directly using positioning bolts. The positioning of the welding robot can be completed by mounting the positioning plate at the bottom. Then, the angle of the welding torch can be adjusted by rotating the second, third, and fourth robotic arms, and welding can then be performed. This facilitates the user's movement and positioning of the robot.

[0011] Furthermore, the hydraulic push assembly includes a hydraulic cylinder. A first hydraulic rod is fixedly connected to the back of the bottom of the hydraulic cylinder. A first telescopic sleeve is fixedly connected to the bottom of the first hydraulic rod. A first limiting plate is provided on the inner side of the first telescopic sleeve. A first telescopic rod is fixedly connected to the front of the first limiting plate. A first rotary positioning shaft is fixedly connected to both sides of the first telescopic rod. When the robot needs to be installed on the track for parallel welding, the hydraulic cylinder drives the second rotary shaft to extend, pushing the second telescopic sleeve to descend. At the same time, the servo motor rotates, pushing the second limiting plate and the second telescopic rod to extend out of the inner side of the second telescopic sleeve. This causes the clamping plate body to slide along the first arc-shaped guide rod and the second arc-shaped guide rod, and rotate inside the convex sliding groove. While pushing, the first limiting plate and the first telescopic rod slide inside the first telescopic sleeve until the teeth and gears mesh and lock the lower shaft, thereby positioning the upper and lower shafts. Then, the equipment can be installed on the track sliding device. The welding position can be adjusted by the second, third, and fourth robotic arms, and then track sliding welding can be performed.

[0012] Furthermore, a second rotating shaft is fixedly connected to the bottom of the hydraulic cylinder, and a second telescopic sleeve is fixedly connected to the bottom of the second rotating shaft. A second limiting plate is provided inside the second telescopic sleeve, and a second telescopic rod is fixedly connected to the back of the second limiting plate. Second rotating positioning shafts are fixedly connected to both sides of the second telescopic rod, and a servo motor is fixedly connected to the front of the second telescopic sleeve. A threaded rod is fixedly connected to the output shaft of the servo motor. When it is necessary to install the equipment on the positioning rod, the hydraulic cylinder drives the second rotating shaft to extend, pushing the second telescopic sleeve to descend, and simultaneously the servo motor... The servo motor rotates, pushing the second limiting plate and the second telescopic rod to extend out of the inner side of the second telescopic sleeve. This causes the clamping plate body to slide along the first arc-shaped guide rod and the second arc-shaped guide rod, and rotate inside the convex sliding groove. Simultaneously, the first limiting plate and the first telescopic rod slide inside the first telescopic sleeve, causing the positioning clamping assembly to rotate inward and converge, thus clamping the robot onto the positioning rod. This facilitates the installation of the equipment. Furthermore, the retraction of the positioning clamping assembly and the hydraulic pushing assembly can be adjusted according to different shapes of positioning rods, allowing the equipment to be installed on different positioning rods.

[0013] Furthermore, there is a clearance fit between the diameter of the upper shaft and the diameter of the positioning hole, a clearance fit between the cross-sectional size of the square positioning hole and the projected size of the front of the hydraulic cylinder, the teeth and gears mesh with each other, the first robotic arm and the second robotic arm are connected by a rotating shaft and are equipped with a driver, the first U-shaped positioning frame and the third robotic arm are connected by a rotating shaft and are equipped with a driver, and the second U-shaped positioning frame and the fourth robotic arm are connected by a rotating shaft and are equipped with a driver.

[0014] Furthermore, the first U-shaped positioning block and the second rotary positioning shaft are positioned and connected by bearings, the first rotary positioning shaft and the second U-shaped positioning block are connected by bearings, the distance between the sliding positioning blocks and the width of the second telescopic sleeve are clearance-fitted, the cross-sectional dimension of the inner side of the first telescopic sleeve and the dimension of the first limiting plate are clearance-fitted, and the opening dimension of the inner side of the first telescopic sleeve and the cross-sectional dimension of the first telescopic rod are clearance-fitted.

[0015] Furthermore, the cross-sectional dimensions of the inner side of the second telescopic sleeve are clearance-fitted with the cross-sectional dimensions of the second limiting plate, and the cross-sectional dimensions of the opening of the second telescopic sleeve are clearance-fitted with the cross-sectional dimensions of the second telescopic rod. Threaded holes are provided on the front sides of the second telescopic rod and the second limiting plate, and the threads on the inner side of the threaded holes of the second telescopic rod and the second limiting plate are in mutual engagement with the threads on the outer side of the threaded rod.

[0016] Furthermore, the top of the positioning push rod is provided with an arc-shaped sliding hole, the diameter of the arc-shaped sliding hole of the positioning push rod is clearance-fitted with the diameter of the first arc-shaped guide rod, the diameter of the first arc-shaped guide rod is the same as the diameter of the second arc-shaped guide rod, the width of the inner side of the convex sliding groove is clearance-fitted with the diameter of the side of the positioning push rod away from the main body of the clamping plate, and the width of the opening of the convex sliding groove is clearance-fitted with the diameter of the side of the positioning push rod close to the main body of the clamping plate.

[0017] The technical effects and advantages of this invention are as follows: When the welding robot needs to be positioned on a plane during operation, the present invention can be positioned directly by positioning bolts and a positioning plate installed at the bottom to complete the positioning of the welding robot. Then, the angle of the welding gun can be adjusted by rotating the second, third and fourth robotic arms, and then welding can be carried out. This makes it convenient for the user to move and position the robot. When a robot needs to be installed on a track for parallel welding, the present invention uses a hydraulic cylinder to extend the second rotating shaft, which in turn lowers the second telescopic sleeve. Simultaneously, a servo motor rotates, pushing the second limiting plate and the second telescopic rod out of the inner side of the second telescopic sleeve. This causes the clamping plate to slide along the first and second arc-shaped guide rods and rotate inside the convex sliding groove. The pushing action also causes the first limiting plate and the first telescopic rod to slide inside the first telescopic sleeve until the teeth and gears mesh and lock the lower shaft, thus positioning the upper and lower shafts. The device can then be installed on the track sliding device, and the welding position can be adjusted by the second, third, and fourth robotic arms. Track sliding welding can then be performed. When the device needs to be installed on the positioning rod, the present invention uses a hydraulic cylinder to extend the second rotating shaft, pushing the second telescopic sleeve downward. At the same time, a servo motor rotates, pushing the second limiting plate and the second telescopic rod out of the inner side of the second telescopic sleeve. This causes the clamping plate body to slide along the first and second arc-shaped guide rods and rotate inside the convex sliding groove. Simultaneously, the first limiting plate and the first telescopic rod slide inside the first telescopic sleeve, causing the positioning clamping assembly to rotate inward and converge, thus clamping the robot on the positioning rod. This facilitates the installation of the device. Furthermore, the retraction of the positioning clamping assembly and the hydraulic pushing assembly can be adjusted according to different shapes of positioning rods, allowing the device to be installed on different positioning rods. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the support positioning frame component structure of the present invention.

[0020] Figure 3 For the present invention Figure 2 A magnified structural diagram at point A.

[0021] Figure 4 This is a schematic diagram of the robotic arm assembly structure of the present invention.

[0022] Figure 5 This is a schematic diagram of the adjustment and positioning component structure of the present invention.

[0023] Figure 6 This is a schematic diagram of the positioning and clamping component structure of the present invention.

[0024] Figure 7 This is a schematic diagram of the first cross-sectional structure of the hydraulic actuation component of the present invention.

[0025] Figure 8 This is a schematic diagram of the second cross-sectional structure of the hydraulic actuation component of the present invention.

[0026] The attached figures are labeled as follows: 1. Support positioning frame assembly; 101. Support positioning plate; 102. Hexagonal positioning frame; 103. Square positioning hole; 104. Positioning hole; 105. Positioning notch; 106. Arc-shaped guide plate; 107. Convex sliding groove; 108. First arc-shaped guide rod; 109. Second arc-shaped guide rod; 2. Robotic arm assembly; 201. Dual-axis motor; 202. Positioning square plate; 203. Upper shaft; 204. Lower shaft; 205. Gear; 206. First robotic arm; 207. Second robotic arm; 208. First U-shaped positioning frame; 209. Third robotic arm; 2010. Second U-shaped positioning frame; 2011. Fourth robotic arm; 2012. Welding torch; 3. Adjustment positioning assembly; 301. Positioning and clamping assembly; 3011, clamping plate body; 3012, first U-shaped positioning block; 3013, second U-shaped positioning block; 3014, positioning push rod; 3015, teeth; 3016, sliding positioning block; 3017, mounting positioning plate; 302, hydraulic push assembly; 3021, hydraulic cylinder; 3022, first hydraulic rod; 3023, first telescopic sleeve; 3024, first limiting plate; 3025, first telescopic rod; 3026, first rotary positioning shaft; 3027, second rotary shaft; 3028, second telescopic sleeve; 3029, servo motor; 30210, second limiting plate; 30211, second telescopic rod; 30212, second rotary positioning shaft; 30213, threaded rod. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The welding robot applicable to metal welding involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Reference Figures 1 to 8 This invention provides a welding robot suitable for metal welding, including a support positioning frame assembly 1, a robotic arm assembly 2 fixedly connected to the top of the support positioning frame assembly 1, an adjustment positioning assembly 3 installed on the outside of the support positioning frame assembly 1, the support positioning frame assembly 1 including a support positioning plate 101, a hexagonal positioning frame 102 fixedly connected to the bottom of the support positioning plate 101, a square positioning hole 103 opened on the outside of the hexagonal positioning frame 102, a positioning notch 105 opened at the bottom of the support positioning plate 101, an arc-shaped guide plate 106 fixedly connected to both sides of the positioning notch 105, a convex sliding groove 107 opened on the side of the arc-shaped guide plate 106, a first arc-shaped guide rod 108 fixedly connected to the inside of the convex sliding groove 107, and a second arc-shaped guide rod 109 fixedly connected to the inside of the convex sliding groove 107.

[0029] In a preferred embodiment, the robotic arm assembly 2 includes a dual-axis motor 201. An upper shaft 203 is mounted on the top of the dual-axis motor 201. A lower shaft 204 is fixedly connected to the bottom of the upper shaft 203. A positioning plate 202 is fixedly connected to the top of the upper shaft 203. A first robotic arm 206 is fixedly connected to the top of the positioning plate 202. A second robotic arm 207 is fixedly mounted on the top of the first robotic arm 206. A gear 205 is fixedly connected to the bottom of the lower shaft 204. A first U-shaped positioning frame 208 is installed on the side of the robotic arm 207 away from the first robotic arm 206. A third robotic arm 209 is installed on the inner side of the first U-shaped positioning frame 208. A second U-shaped positioning frame 2010 is fixedly connected to the side of the third robotic arm 209 away from the first U-shaped positioning frame 208. A fourth robotic arm 2011 is installed on the inner side of the second U-shaped positioning frame 2010. A welding torch 2012 is fixedly connected to the side of the fourth robotic arm 2011 away from the second U-shaped positioning frame 2010.

[0030] In a preferred embodiment, the adjusting positioning component 3 includes a positioning clamping component 301. A hydraulic pushing component 302 is mounted on the top of the positioning clamping component 301. The positioning clamping component 301 includes a clamping plate body 3011. Positioning pushing rods 3014 are fixedly connected to both sides of the clamping plate body 3011. A first U-shaped positioning block 3012 is fixedly connected to the top of the clamping plate body 3011. A first U-shaped positioning block 3012 is fixedly connected to the bottom of the clamping plate body 3011. A second U-shaped positioning block 3013 is fixedly connected to the bottom of the clamping plate body 3011. Teeth 3015 are provided on the front side of the clamping plate body 3011. Sliding positioning blocks 3016 are fixedly connected to both the top and bottom of the clamping plate body 3011. A mounting positioning plate 3017 is fixedly connected to the side of the sliding positioning block 3016.

[0031] In a preferred embodiment, the hydraulic actuation assembly 302 includes a hydraulic cylinder 3021. A first hydraulic rod 3022 is fixedly connected to the back of the bottom of the hydraulic cylinder 3021. A first telescopic sleeve 3023 is fixedly connected to the bottom of the first hydraulic rod 3022. A first limiting plate 3024 is provided on the inner side of the first telescopic sleeve 3023. A first telescopic rod 3025 is fixedly connected to the front of the first limiting plate 3024. A first rotary positioning shaft 3026 is fixedly connected to both sides of the first telescopic rod 3025.

[0032] In a preferred embodiment, a second rotating shaft 3027 is fixedly connected to the bottom of the hydraulic cylinder 3021, a second telescopic sleeve 3028 is fixedly connected to the bottom of the second rotating shaft 3027, a second limiting plate 30210 is provided on the inner side of the second telescopic sleeve 3028, a second telescopic rod 30211 is fixedly connected to the back of the second limiting plate 30210, a second rotating positioning shaft 30212 is fixedly connected to both sides of the second telescopic rod 30211, a servo motor 3029 is fixedly connected to the front of the second telescopic sleeve 3028, and a threaded rod 30213 is fixedly connected to the output shaft of the servo motor 3029.

[0033] In a preferred embodiment, the diameter of the upper shaft 203 and the diameter of the positioning hole 104 are clearance-fitted, the cross-sectional dimensions of the square positioning hole 103 and the projected dimensions of the front of the hydraulic cylinder 3021 are clearance-fitted, the teeth 3015 and the gear 205 mesh with each other, the first robotic arm 206 and the second robotic arm 207 are connected by a rotating shaft and are equipped with a driver, the first U-shaped positioning frame 208 and the third robotic arm 209 are connected by a rotating shaft and are equipped with a driver, and the second U-shaped positioning frame 2010 and the fourth robotic arm 2011 are connected by a rotating shaft and are equipped with a driver.

[0034] In a preferred embodiment, the first U-shaped positioning block 3012 and the second rotary positioning shaft 30212 are positioned and connected by bearings, the first rotary positioning shaft 3026 and the second U-shaped positioning block 3013 are connected by bearings, the distance between the sliding positioning blocks 3016 and the width of the second telescopic sleeve 3028 are clearance-fitted, the cross-sectional dimension of the inner side of the first telescopic sleeve 3023 is clearance-fitted with the dimension of the first limiting plate 3024, and the opening dimension of the inner side of the first telescopic sleeve 3023 is clearance-fitted with the cross-sectional dimension of the first telescopic rod 3025.

[0035] In a preferred embodiment, the cross-sectional dimensions of the inner side of the second telescopic sleeve 3028 and the cross-sectional dimensions of the second limiting plate 30210 are clearance-fitted, and the cross-sectional dimensions of the opening of the second telescopic sleeve 3028 and the cross-sectional dimensions of the second telescopic rod 30211 are clearance-fitted. Threaded holes are provided on the front sides of the second telescopic rod 30211 and the second limiting plate 30210, and the threads on the inner side of the threaded holes of the second telescopic rod 30211 and the second limiting plate 30210 are engaged with the threads on the outer side of the threaded rod 30213.

[0036] In a preferred embodiment, the top of the positioning push rod 3014 is provided with an arc-shaped sliding hole. The diameter of the arc-shaped sliding hole of the positioning push rod 3014 is clearance-fitted with the diameter of the first arc-shaped guide rod 108. The diameter of the first arc-shaped guide rod 108 is the same as the diameter of the second arc-shaped guide rod 109. The width of the inner side of the convex sliding groove 107 is clearance-fitted with the diameter of the side of the positioning push rod 3014 away from the clamping plate body 3011. The width of the opening of the convex sliding groove 107 is clearance-fitted with the diameter of the side of the positioning push rod 3014 close to the clamping plate body 3011.

[0037] The working principle of this invention is as follows: When the welding robot needs to be positioned on a plane during the work process, it can be positioned directly by positioning bolts and the positioning plate 3017 installed at the bottom can be used to complete the positioning work of the welding robot. Then, the angle of the welding gun 2012 can be adjusted by rotating the second robotic arm 207, the third robotic arm 209 and the fourth robotic arm 2011, and then the welding work can be carried out. This makes it convenient for the user to move and position the robot. When the robot needs to be installed on the track for parallel welding, the hydraulic cylinder 3021 drives the second rotating shaft 3027 to extend, pushing the second telescopic sleeve 3028 to descend. At the same time, the servo motor 3029 rotates, pushing the second limiting plate 30210 and the second telescopic rod 30211 to extend out of the inner side of the second telescopic sleeve 3028. Then, the clamping plate body 3011 slides along the first arc-shaped guide rod 108 and the second arc-shaped guide rod 109, and rotates inside the convex sliding groove 107. While pushing, the first limiting plate 3024 and the first telescopic rod 3025 slide inside the first telescopic sleeve 3023 until the teeth 3015 and the gear 205 mesh and lock the lower shaft 204, thereby positioning the upper shaft 203 and the lower shaft 204. Then, the equipment can be installed on the track sliding device. The welding position is adjusted by the second robotic arm 207, the third robotic arm 209 and the fourth robotic arm 2011, and then track sliding welding can be performed. When the device needs to be installed on the positioning rod, the hydraulic cylinder 3021 drives the second rotating shaft 3027 to extend, pushing the second telescopic sleeve 3028 to descend. At the same time, the servo motor 3029 rotates, pushing the second limiting plate 30210 and the second telescopic rod 30211 to extend out of the inner side of the second telescopic sleeve 3028. This causes the clamping plate body 3011 to slide along the first arc-shaped guide rod 108 and the second arc-shaped guide rod 109, and rotate inside the convex sliding groove 107. While pushing, the first limiting plate 3024 and the first telescopic rod 3025 slide inside the first telescopic sleeve 3023, which allows the positioning clamping assembly 301 to rotate inward and converge, thus clamping the robot on the positioning rod. This facilitates the installation of the device. The retraction of the positioning clamping assembly 301 and the hydraulic pushing assembly 302 can be adjusted according to the different shapes of the positioning rods, so that the device can be installed on different positioning rods.

[0038] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding robot suitable for metal welding, comprising a support positioning frame assembly (1), characterized in that: The top of the support positioning frame assembly (1) is fixedly connected to a robotic arm assembly (2), and an adjustment positioning assembly (3) is installed on the outside of the support positioning frame assembly (1). The support positioning frame assembly (1) includes a support positioning plate (101), and a hexagonal positioning frame (102) is fixedly connected to the bottom of the support positioning plate (101). A square positioning hole (103) is opened on the outside of the hexagonal positioning frame (102), and a positioning notch (105) is opened at the bottom of the support positioning plate (101). An arc-shaped guide plate (106) is fixedly connected to both sides of the positioning notch (105). A convex sliding groove (107) is opened on the side of the arc-shaped guide plate (106), and a first arc-shaped guide rod (108) is fixedly connected to the inside of the convex sliding groove (107). A second arc-shaped guide rod (109) is fixedly connected to the inside of the convex sliding groove (107).

2. The welding robot suitable for metal welding according to claim 1, characterized in that: The robotic arm assembly (2) includes a dual-axis motor (201), an upper shaft (203) mounted on the top of the dual-axis motor (201), a lower shaft (204) fixedly connected to the bottom of the upper shaft (203), a positioning plate (202) fixedly connected to the top of the upper shaft (203), a first robotic arm (206) fixedly connected to the top of the positioning plate (202), a second robotic arm (207) fixedly mounted on the top of the first robotic arm (206), and a gear (205) fixedly connected to the bottom of the lower shaft (204). A first U-shaped positioning frame (208) is installed on the side of the robotic arm (207) away from the first robotic arm (206). A third robotic arm (209) is installed on the inner side of the first U-shaped positioning frame (208). A second U-shaped positioning frame (2010) is fixedly connected to the side of the third robotic arm (209) away from the first U-shaped positioning frame (208). A fourth robotic arm (2011) is installed on the inner side of the second U-shaped positioning frame (2010). A welding torch (2012) is fixedly connected to the side of the fourth robotic arm (2011) away from the second U-shaped positioning frame (2010).

3. A welding robot suitable for metal welding according to claim 2, characterized in that: The adjustment and positioning component (3) includes a positioning clamping component (301). A hydraulic push component (302) is installed on the top of the positioning clamping component (301). The positioning clamping component (301) includes a clamping plate body (3011). Positioning push rods (3014) are fixedly connected to both sides of the clamping plate body (3011). A first U-shaped positioning block (3012) is fixedly connected to the top of the clamping plate body (3011). A first U-shaped positioning block (3012) is fixedly connected to the bottom of the clamping plate body (3011). A second U-shaped positioning block (3013) is fixedly connected to the bottom of the clamping plate body (3011). Teeth (3015) are provided on the front of the clamping plate body (3011). Sliding positioning blocks (3016) are fixedly connected to both the top and bottom of the clamping plate body (3011). A mounting positioning plate (3017) is fixedly connected to the side of the sliding positioning block (3016).

4. A welding robot suitable for metal welding according to claim 3, characterized in that: The hydraulic push assembly (302) includes a hydraulic cylinder (3021), a first hydraulic rod (3022) is fixedly connected to the back of the bottom of the hydraulic cylinder (3021), a first telescopic sleeve (3023) is fixedly connected to the bottom of the first hydraulic rod (3022), a first limiting plate (3024) is provided on the inner side of the first telescopic sleeve (3023), a first telescopic rod (3025) is fixedly connected to the front of the first limiting plate (3024), and a first rotary positioning shaft (3026) is fixedly connected to both sides of the first telescopic rod (3025).

5. A welding robot suitable for metal welding according to claim 4, characterized in that: The bottom of the hydraulic cylinder (3021) is fixedly connected to a second rotating shaft (3027), the bottom of the second rotating shaft (3027) is fixedly connected to a second telescopic sleeve (3028), a second limiting plate (30210) is provided on the inner side of the second telescopic sleeve (3028), a second telescopic rod (30211) is fixedly connected to the back of the second limiting plate (30210), a second rotating positioning shaft (30212) is fixedly connected to both sides of the second telescopic rod (30211), a servo motor (3029) is fixedly connected to the front of the second telescopic sleeve (3028), and a threaded rod (30213) is fixedly connected to the output shaft of the servo motor (3029).

6. A welding robot suitable for metal welding according to claim 5, characterized in that: The diameter of the upper shaft (203) and the diameter of the positioning hole (104) are fitted with a clearance fit. The cross-sectional dimension of the square positioning hole (103) and the projected dimension of the front of the hydraulic cylinder (3021) are fitted with a clearance fit. The teeth (3015) mesh with the gear (205). The first robotic arm (206) and the second robotic arm (207) are connected by a rotating shaft and are equipped with a driver. The first U-shaped positioning frame (208) and the third robotic arm (209) are connected by a rotating shaft and are equipped with a driver. The second U-shaped positioning frame (2010) and the fourth robotic arm (2011) are connected by a rotating shaft and are equipped with a driver.

7. A welding robot suitable for metal welding according to claim 5, characterized in that: The first U-shaped positioning block (3012) and the second rotary positioning shaft (30212) are connected by bearing positioning. The first rotary positioning shaft (3026) and the second U-shaped positioning block (3013) are connected by bearing. The distance between the sliding positioning blocks (3016) and the width of the second telescopic sleeve (3028) are clearance-fitted. The cross-sectional dimension of the inner side of the first telescopic sleeve (3023) is clearance-fitted with the dimension of the first limiting plate (3024). The opening dimension of the inner side of the first telescopic sleeve (3023) and the cross-sectional dimension of the first telescopic rod (3025) are clearance-fitted.

8. A welding robot suitable for metal welding according to claim 5, characterized in that: The cross-sectional dimensions of the inner side of the second telescopic sleeve (3028) are clearance-fitted with the cross-sectional dimensions of the second limiting plate (30210). The cross-sectional dimensions of the opening of the second telescopic sleeve (3028) are clearance-fitted with the cross-sectional dimensions of the second telescopic rod (30211). Threaded holes are provided on the front sides of the second telescopic rod (30211) and the second limiting plate (30210). The threads on the inner side of the threaded holes of the second telescopic rod (30211) and the second limiting plate (30210) are engaged with the threads on the outer side of the threaded rod (30213).

9. A welding robot suitable for metal welding according to claim 5, characterized in that: The top of the positioning push rod (3014) is provided with an arc-shaped sliding hole. The diameter of the arc-shaped sliding hole of the positioning push rod (3014) is in clearance fit with the diameter of the first arc-shaped guide rod (108). The diameter of the first arc-shaped guide rod (108) is the same as the diameter of the second arc-shaped guide rod (109). The width of the inner side of the convex sliding groove (107) is in clearance fit with the diameter of the side of the positioning push rod (3014) away from the clamping plate body (3011). The width of the opening of the convex sliding groove (107) is in clearance fit with the diameter of the side of the positioning push rod (3014) close to the clamping plate body (3011).

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