A welding robot

Abstract

The present invention relates to the field of welding technology, and provides a welding robot, including a connecting mechanism, a first limiting mechanism is installed on one side of the connecting mechanism, a second limiting mechanism is installed on the other side of the connecting mechanism, the first limiting mechanism and the second limiting mechanism have the same specifications and structures, the connecting mechanism includes a second push-pull mechanism, a first L-shaped plate is installed on one end of the second push-pull mechanism, a second L-shaped plate is installed on the other end of the second push-pull mechanism, and a welding mechanism is installed on the second L-shaped plate. In the present invention, the first limiting mechanism and the second limiting mechanism can be firmly fixed on the rod body by winding and tightening the belt, and can maintain stable adhesion even on the rod body with a large diameter change. This significantly improves the stability of the welding robot on rod bodies with different diameters and curvatures, reduces the risk of loosening and falling off due to vibration or other external factors, and ensures the stability and safety of the welding process.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a welding robot. Background Art

[0002] With the acceleration of industrialization, the demand for efficient, precise and complex automation equipment is growing. As an indispensable part of the manufacturing industry, the level of automation of welding is directly related to production efficiency and product quality. Traditional welding methods mostly rely on manual operation, which is not only labor-intensive and has a harsh working environment, but also has certain safety hazards. In recent years, with the development of robotics technology, welding robots have gradually become the mainstream choice in the industry. They can complete high-quality welding tasks on a fixed workbench.

[0003] In recent years, with the advancement of robotics technology, some welding robots that can move along linear tracks have been developed to replace manual work in completing certain repetitive and dangerous welding tasks. However, most of these robots are limited to working on planes or linear tracks, and it is difficult to effectively deal with rods with large diameter changes and different curvatures. Especially when dealing with rods with sudden changes in diameter, existing robot systems are prone to instability or even falling off, which seriously affects the quality and safety of welding.

[0004] The purpose of the invention is to solve the problems of poor stability and easy falling off of the existing welding robot when working on a rod body with a changing diameter. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing welding robot has poor stability and is easy to fall off when working on a rod with a changing diameter. The present invention adopts the following technical solutions:

[0006] A welding robot comprises a connecting mechanism, a first limiting mechanism is installed on one side of the connecting mechanism, a second limiting mechanism is installed on the other side of the connecting mechanism, the first limiting mechanism and the second limiting mechanism have the same specifications and structures, the connecting mechanism comprises a second push-pull mechanism, a first L-shaped plate is installed on one end of the second push-pull mechanism, a second L-shaped plate is installed on the other end of the second push-pull mechanism, a welding mechanism is installed on the second L-shaped plate, the first limiting mechanism is installed on one end of the first L-shaped plate, and the second limiting mechanism is installed on one end of the second L-shaped plate;

[0007] The first limiting mechanism includes a side plate, a first power mechanism is installed at one end of the side plate, and a second power mechanism is installed at the other end of the side plate, the second power mechanism has the same specifications and structure as the first power mechanism, the second power mechanism includes a third motor, a rotor of the third motor is installed with a telescopic rod, a support is provided on the outer sleeve of the telescopic rod, the support is rotatably connected with the telescopic rod, connecting rods are installed on both sides of the support, one end of the connecting rod is fixedly connected to the side plate, a winding mechanism is provided on one side of the second power mechanism, the winding mechanism includes a first gear, a plurality of belts are installed on the first gear, a second gear is installed on one end of the belt, the second gear has the same specifications and structure as the first gear, the side wall of the support is provided with at least one cylinder, a rod body is sleeved in the cylinder, the rod body is slidably connected with the cylinder, and a transmission mechanism is installed at one end of the rod body;

[0008] The transmission mechanism comprises a frame body, the frame body is fixedly connected to one end of the rod body, a second gear meshing with the first gear is rotatably arranged in the frame body, and a rotating shaft of the second gear is fixedly connected to one end of the telescopic rod.

[0009] A welding robot as described above, a sleeve is installed on one side of the second L-shaped plate, the welding mechanism includes a first L-shaped block, a first push-pull mechanism is installed at the bottom of the first L-shaped block, a second L-shaped block is installed at the bottom of the first push-pull mechanism, a bottom plate is installed at the bottom end of the second L-shaped block, at least one limiting wheel is installed on the bottom side of the bottom plate, the limiting wheel is rotatably connected to the bottom plate, a first motor is installed on the top of the bottom plate, a driving wheel is installed on the bottom side of the bottom plate, the rotor of the first motor passes through the bottom plate and is connected to the driving wheel, the limiting wheel is arranged on the inner side of the sleeve, and the driving wheel is arranged on the outer side of the sleeve, a second motor is installed on one side of the first L-shaped block, a screw rod is installed on the rotor of the second motor, a slider is provided on the outer sleeve of the screw rod, the slider is threadedly connected to the screw rod, the slider is slidably connected to the first L-shaped block, a welding gun is installed in the slider, and the welding gun is electrically connected to a power supply.

[0010] In a welding robot as described above, a first clamping block is installed at one end of the frame, and a second clamping block is installed at the other end of the frame. Grooves are provided at the top and bottom of the first gear. The first clamping block is arranged in the groove at the bottom of the first gear, and the second clamping block is arranged in the groove at the top of the first gear. Both the first clamping block and the second clamping block are slidably connected to the grooves.

[0011] In the welding robot as described above, the first gear includes a first half gear and a second half gear, a first fixing ring is sleeved inside the first gear, and the first fixing ring is used to connect the first half gear and the second half gear.

[0012] In a welding robot as described above, the sleeve includes a first semi-annular block and a second semi-annular block, the second semi-annular block is fixedly connected to the second L-shaped plate, and a second fixing ring is sleeved inside the sleeve, and the second fixing ring is used to connect the first semi-annular block and the second semi-annular block.

[0013] In the welding robot as described above, a support block is fixedly connected to the bottom of the first L-shaped block, and the support block is slidably connected to the first push-pull mechanism.

[0014] In the welding robot as described above, a camera unit is installed on the top of the slider, and the camera unit is electrically connected to the power supply.

[0015] In a welding robot as described above, the telescopic rod includes a transmission cylinder, the transmission cylinder is fixedly connected to the rotor of the third motor, a transmission rod is sleeved inside the transmission cylinder, the transmission rod is slidably connected to the transmission cylinder, and one end of the transmission rod is fixedly connected to the rotating shaft of the second gear.

[0016] In the welding robot as described above, a slot is formed on the side wall of the transmission rod, and a clamping strip matching the slot is formed on the inner wall of the transmission cylinder, and the clamping strip is clamped with the slot.

[0017] In a welding robot as described above, at least one positioning rod is installed on one side of the second L-shaped plate, a positioning cylinder is disposed on the outer sleeve of the positioning rod, the positioning cylinder is slidably connected to the positioning rod, and the positioning cylinder is fixedly connected to one side of the first L-shaped plate.

[0018] Implementing the embodiments of the present invention has the following beneficial effects:

[0019] 1. In the present invention, the first limiting mechanism and the second limiting mechanism can be firmly fixed on the rod body by winding and tightening the belt, and can maintain stable adhesion even on the rod body with a large diameter change. This significantly improves the stability of the welding robot on rod bodies with different diameters and curvatures, reduces the risk of loosening and falling off due to vibration or other external factors, and ensures the stability and safety of the welding process. At the same time, the winding design of the belt enables the robot to always maintain good contact with the rod body during movement, avoiding the risk of instability and falling off, and further improving the welding quality and safety.

[0020] In summary, the present invention solves the problem that the existing welding robot has poor stability and is easy to fall off when working on a rod body with a changing diameter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural schematic diagram of a welding robot of the present invention.

[0023] Figure 2 It is a structural schematic diagram of a welding robot of the present invention from another angle.

[0024] Figure 3 The present invention is a schematic structural diagram of a connection mechanism of a welding robot.

[0025] Figure 4 It is a structural schematic diagram of a connection mechanism of a welding robot of the present invention from another angle.

[0026] Figure 5 The present invention is a schematic structural diagram of a welding mechanism of a welding robot.

[0027] Figure 6 It is a structural schematic diagram of a first limiting mechanism of a welding robot of the present invention.

[0028] Figure 7 It is an exploded view of a first limiting mechanism of a welding robot of the present invention.

[0029] Figure 8 It is a structural schematic diagram of a first gear of a welding robot of the present invention.

[0030] Fig. 9 The present invention is a schematic structural diagram of a telescopic rod of a welding robot.

[0031] Fig.10 The present invention is a schematic structural diagram of a transmission mechanism of a welding robot.

[0032] Fig.11 It is a structural schematic diagram of a welding robot attached to a rod body of the present invention. DETAILED DESCRIPTION

[0033] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0034] Embodiment 1, as Figures 1 to 11 As shown, an embodiment of the present invention provides a welding robot, comprising a connecting mechanism 1, a first limiting mechanism 2 is installed on one side of the connecting mechanism 1, a second limiting mechanism 3 is installed on the other side of the connecting mechanism 1, the first limiting mechanism 2 and the second limiting mechanism 3 have the same specifications and structures, the connecting mechanism 1 comprises a second push-pull mechanism 12, a first L-shaped plate 15 is installed on one end of the second push-pull mechanism 12, a second L-shaped plate 19 is installed on the other end of the second push-pull mechanism 12, a welding mechanism 11 is installed on the second L-shaped plate 19, the first limiting mechanism 2 is installed on one end of the first L-shaped plate 15, and the second limiting mechanism 3 is installed on one end of the second L-shaped plate 19;

[0035] The first limiting mechanism 2 includes a side plate 25, a first power mechanism 26 is installed at one end of the side plate 25, a second power mechanism 27 is installed at the other end of the side plate 25, the second power mechanism 27 has the same specifications and structure as the first power mechanism 26, the second power mechanism 27 includes a third motor 271, a rotor of the third motor 271 is installed with a telescopic rod 276, the outer sleeve of the telescopic rod 276 is provided with a support 274, the support 274 is rotatably connected to the telescopic rod 276, connecting rods 272 are installed on both sides of the support 274, one end of the connecting rod 272 is fixedly connected to the side plate 25, a winding mechanism 23 is provided on one side of the second power mechanism 27, the winding mechanism 23 includes a first gear 21, the first gear 21 is installed with a plurality of belts 24, one end of the belt 24 is installed with a second gear 22, the second gear 22 has the same specifications and structure as the first gear 21, the side wall of the support 274 is provided with at least one cylinder 273, the cylinder 273 The inner sleeve is provided with a rod body 275, the rod body 275 is slidably connected with the cylinder body 273, and a transmission mechanism 277 is installed at one end of the rod body 275;

[0036] The transmission mechanism 277 includes a frame 2771 , which is fixedly connected to one end of the rod 275 . A second gear 2772 meshing with the first gear 21 is rotatably disposed in the frame 2771 , and a rotating shaft of the second gear 2772 is fixedly connected to one end of the telescopic rod 276 .

[0037] The connecting mechanism 1 is used to connect and support all other components to ensure the stability of the overall structure of the robot. The first limiting mechanism 2 and the second limiting mechanism 3 are installed on both sides of the connecting mechanism 1 to contact the rod body and provide stable adhesion. Each limiting mechanism includes a power mechanism and a winding mechanism, which can automatically adjust according to the change in the diameter of the rod body. The second push-pull mechanism 12 is installed inside the connecting mechanism 1 to drive the relative movement of the first L-shaped plate 15 and the second L-shaped plate 19, so that the robot moves up and down along the rod body. The first L-shaped plate 15 and the second L-shaped plate 19 are respectively installed at both ends of the connecting mechanism 1 to fix the first limiting mechanism 2 and the second limiting mechanism 3, as well as the welding mechanism 11. The welding mechanism 11 is installed on the second L-shaped plate 19 and is responsible for performing the actual welding task. The first power mechanism 26 and the second power mechanism 27 include a third motor 271 and a telescopic rod 276, which are used to drive the winding and relaxation of the belt 24, thereby adjusting the contact force between the limiting mechanism and the rod body. Specifically, when in use, the first gear 21 and the second gear 22 are sleeved on the rod body to be welded, and the two third motors 271 of the second limiting mechanism 3 are driven to rotate in different directions respectively. The rotor of the third motor 271 drives the telescopic rod 276 to rotate, and the telescopic rod 276 transmits power to the second gear 2772 through the transmission mechanism 277. The second gear 2772 meshes with the first gear 21, so that the first gear 21 rotates in different directions. The two first gears 21 rotate in different directions to drive the belt 24 Wrapped around the rod body, the belt 24 is tightened continuously as it is wrapped, so that the second limiting mechanism 3 is firmly fixed on the rod body, driving the second push-pull mechanism 12 to extend, so that the first L-shaped plate 15 and the first limiting mechanism 2 move upward. When the first limiting mechanism 2 moves to a suitable position, the two third motors 271 of the first limiting mechanism 2 are driven to rotate in different directions respectively. Similar to the fixing process of the second limiting mechanism 3, the belt 24 of the first limiting mechanism 2 will also be wrapped around the rod body, so that the first limiting mechanism 2 is fixed on the rod body. Further control the third motor 271 of the second limiting mechanism 3 to reverse, so that the belt 24 is loosened, drive the second push-pull mechanism 12 to retract, and move the second limiting mechanism 3 upward. Through the alternating fixing and release of the first limiting mechanism 2 and the second limiting mechanism 3, and the telescopic action of the second push-pull mechanism 12, the welding robot can gradually move up or down on the rod body. When reaching the specified position, the welding mechanism 11 can be operated to perform welding operations on the rod body. By winding and tightening the belt 24, the robot can adapt to rods of different diameters and curvatures, ensuring stable operation even on rods with sudden changes in diameter. The winding design of the belt 24 enables the robot to always maintain good contact with the rod during movement, avoiding the risk of instability and falling off, and improving welding quality and safety.

[0038] like Figures 3 to 5As shown, a sleeve 110 is installed on one side of the second L-shaped plate 19, and the welding mechanism 11 includes a first L-shaped block 111, a first push-pull mechanism 112 is installed at the bottom of the first L-shaped block 111, a second L-shaped block 117 is installed at the bottom of the first push-pull mechanism 112, a bottom plate 113 is installed at the bottom end of the second L-shaped block 117, at least one limiting wheel 114 is installed on one side of the bottom of the bottom plate 113, and the limiting wheel 114 is rotatably connected to the bottom plate 113, a first motor 116 is installed on the top of the bottom plate 113, and a driving wheel 115 is installed on one side of the bottom of the bottom plate 113. The rotor of the motor 116 passes through the bottom plate 113 and is connected to the driving wheel 115. The limiting wheel 114 is arranged on the inner side of the sleeve 110. The driving wheel 115 is arranged on the outer side of the sleeve 110. A second motor 119 is installed on one side of the first L-shaped block 111. A screw rod 1113 is installed on the rotor of the second motor 119. A slider 1111 is arranged on the outer sleeve of the screw rod 1113. The slider 1111 is threadedly connected to the screw rod 1113. The slider 1111 is slidably connected to the first L-shaped block 111. A welding gun 1110 is installed in the slider 1111. The welding gun 1110 is electrically connected to the power supply 18.

[0039] In the specific implementation process, Figures 3 to 5 As shown, when in use, the welding mechanism 11 is installed on one side of the second L-shaped plate 19, and a sleeve 110 is installed on one side of the second L-shaped plate 19. The sleeve 110 is used to guide and support the movement of the welding mechanism 11 to ensure its stable operation on the rod body. Start the first push-pull mechanism 112, adjust the height of the second L-shaped block 117, so that the overall height of the welding mechanism 11 is suitable for the position of the welding point. Ensure that the limiting wheel 114 rolls inside the sleeve 110 to provide stable support and guidance. Start the first motor 116 to drive the driving wheel 115 to rotate. The driving wheel 115 contacts the outside of the sleeve 110 and drives the welding mechanism 11 to move along the rod body through friction. Start the second motor 119 to drive the screw rod 1113 to rotate. The rotation of the screw rod 1113 causes the slider 1111 to slide along the first L-shaped block 111 to adjust the position of the welding gun 1110. After confirming that the position of the welding gun 1110 is correct, start the power supply 18, and the welding gun 1110 starts welding. Because the position of the welding gun 1110 can be precisely adjusted, the accuracy of the welding point and the welding quality can be ensured.

[0040] like Figure 1 , Figure 8 , Fig.10 As shown, a first clamping block 2773 is installed at one end of the frame 2771, and a second clamping block 2774 is installed at the other end of the frame 2771. Grooves 211 are provided at the top and bottom of the first gear 21. The first clamping block 2773 is arranged in the groove 211 at the bottom of the first gear 21, and the second clamping block 2774 is arranged in the groove 211 at the top of the first gear 21. The first clamping block 2773 and the second clamping block 2774 are both slidably connected to the groove 211.

[0041] In the specific implementation process, Figure 1 , Figure 8 , Fig.10 As shown, the frame 2771 is the main frame of the transmission mechanism 277, which is used to fix and support other transmission components. The first clamping block 2773 and the second clamping block 2774 are installed in the groove 211 to provide support for the gear, and the frame 2771 will not rotate when the gear rotates.

[0042] like Figure 3 , Figure 8 As shown, the first gear 21 includes a first half gear 212 and a second half gear 213 . A first fixing ring 214 is sleeved inside the first gear 21 . The first fixing ring 214 is used to connect the first half gear 212 and the second half gear 213 .

[0043] The sleeve 110 includes a first semi-annular block 16 and a second semi-annular block 17 . The second semi-annular block 17 is fixedly connected to the second L-shaped plate 19 . A second fixing ring 4 is sleeved inside the sleeve 110 . The second fixing ring 4 is used to connect the first semi-annular block 16 and the second semi-annular block 17 .

[0044] In the specific implementation process, Figure 3 , Figure 8 As shown, the first gear 21 is composed of a first half gear 212 and a second half gear 213, and a first fixing ring 214 is installed inside the first gear 21 to connect the first half gear 212 and the second half gear 213 to ensure their integrity and stability after assembly. The first fixing ring 214 is fixedly connected to the first half gear 212 and the second half gear 213 by bolts. The sleeve 110 is composed of a first semi-annular block 16 and a second semi-annular block 17. The second fixing ring 4 is installed inside the sleeve 110 to connect the first semi-annular block 16 and the second semi-annular block 17 to ensure their integrity and stability after assembly. The second fixing ring 4 is fixedly connected to the first semi-annular block 16 and the second semi-annular block 17 by bolts. The first fixing ring 214 and the second fixing ring 4 are respectively connected to the semi-gear and the semi-annular block, making the installation and maintenance of each component more convenient. If a component is damaged, it can be quickly replaced, reducing maintenance time and cost. The modular design enables the first gear 21 and the sleeve 110 to be assembled after being sleeved on the rod body.

[0045] like Figure 5 As shown, a support block 118 is fixedly connected to the bottom of the first L-shaped block 111 , and the support block 118 is slidably connected to the first push-pull mechanism 112 .

[0046] In the specific implementation process, Figure 5As shown, the sliding connection between the support block 118 and the first push-pull mechanism 112 ensures the stability and reliability of the welding mechanism 11 when it moves up and down. This design reduces the unstable factors caused by vibration and displacement, and improves the accuracy and quality of the welding process.

[0047] like Figure 5 As shown, a camera unit 1112 is installed on the top of the slider 1111 , and the camera unit 1112 is electrically connected to the power source 18 .

[0048] In the specific implementation process, Figure 5 As shown, the camera unit 1112 is installed on the top of the slider 1111 to monitor the welding process in real time, provide visual feedback, and ensure the welding quality. Through real-time monitoring, potential faults can be discovered in advance, preventive measures can be taken, and the probability of accidents can be reduced. The camera unit 1112 is electrically connected to the power supply 18 to ensure its normal operation.

[0049] like Fig. 9 As shown, the telescopic rod 276 includes a transmission cylinder 2761, which is fixedly connected to the rotor of the third motor 271. A transmission rod 2762 is sleeved inside the transmission cylinder 2761, and the transmission rod 2762 is slidably connected to the transmission cylinder 2761. One end of the transmission rod 2762 is fixedly connected to the rotating shaft of the second gear 2772. A slot is provided on the side wall of the transmission rod 2762, and a clip matching the slot is provided on the inner wall of the transmission cylinder 2761, and the clip is clipped to the slot.

[0050] In the specific implementation process, Fig. 9 As shown, when the belt 24 is wrapped around the rod body, the two first gears 21 will be relatively close, resulting in the need to shorten the transmission rod 2762. The sliding connection between the transmission rod 2762 and the transmission cylinder 2761 allows the transmission rod 2762 to slide in the transmission cylinder 2761 to adapt to the position change of the two first gears 21 being relatively close. Through the engagement of the clamping strip and the clamping slot, the rotation of the transmission cylinder 2761 will drive the rotation of the transmission rod 2762. The engagement of the clamping strip and the clamping slot ensures the effective transmission of power, so that the transmission rod 2762 can transmit power to the second gear 2772, thereby driving the first gear 21 to rotate.

[0051] like Figure 3 , Figure 4 As shown, at least one positioning rod 13 is installed on one side of the second L-shaped plate 19 , and a positioning cylinder 14 is disposed on the outer shell of the positioning rod 13 . The positioning cylinder 14 is slidably connected to the positioning rod 13 , and the positioning cylinder 14 is fixedly connected to one side of the first L-shaped plate 15 .

[0052] In the specific implementation process, Figure 3 , Figure 4As shown, the sliding connection between the positioning cylinder 14 and the positioning rod 13 ensures the stability and straightness of the first L-shaped plate 15 when it moves in the vertical direction, and avoids deviation caused by vibration or other external factors.

[0053] Optionally, in some embodiments, the first push-pull mechanism 112 and the second push-pull mechanism 12 are both a combination of one or more of a pneumatic cylinder, an electric push rod, and a hydraulic cylinder.

[0054] Embodiment 2: In embodiment 1, there is still a problem that the belt 24 cannot be better fixed on the rod body. Therefore, based on embodiment 1, this embodiment also includes:

[0055] The interior of the belt 24 is provided with a cavity, in which a plurality of magnetic powders are arranged, and a plurality of soft rubber particles are arranged on the surface of the belt 24. The magnetic powders are evenly distributed in the cavity, and when the belt 24 is wound around the rod, the magnetic powders are tightly combined with the metal part of the surface of the rod through magnetic adsorption force, thereby enhancing the fixing effect between the belt 24 and the rod. A plurality of soft rubber particles are arranged on the surface of the belt 24, and these soft rubber particles increase the friction between the belt 24 and the rod, thereby further improving the fixing effect of the belt 24 by increasing the contact area and the friction coefficient. Thus, the stability and reliability of the limiting mechanism are ensured, the fixing effect is improved, and the risk of loosening caused by vibration or other external factors is reduced.

[0056] Specifically, the working principle of the present invention is as follows:

[0057] First, the first gear 21 and the second gear 22 are sleeved on the rod body to be welded. By driving the two third motors 271 of the second limiting mechanism 3 to rotate in different directions, the rotor of the third motor 271 drives the telescopic rod 276 to rotate, and the telescopic rod 276 transmits power to the second gear 2772 through the transmission mechanism 277. The second gear 2772 meshes with the first gear 21, so that the first gear 21 rotates in different directions, thereby driving the belt 24 to be wound around the rod body, so that the second limiting mechanism 3 is firmly fixed on the rod body. Subsequently, the second push-pull mechanism 12 is driven to extend, so that the first L-shaped plate 15 and the first limiting mechanism 2 move upward.

[0058] When the first limiting mechanism 2 moves to a suitable position, the two third motors 271 of the first limiting mechanism 2 are driven to rotate in different directions respectively. Similar to the fixing process of the second limiting mechanism 3, the belt 24 of the first limiting mechanism 2 is also wound around the rod body, so that the first limiting mechanism 2 is fixed on the rod body. Then, the third motor 271 of the second limiting mechanism 3 is controlled to reverse, so that the belt 24 is loosened, and the second push-pull mechanism 12 is driven to retract, so that the second limiting mechanism 3 moves upward. Through the alternating fixing and releasing of the first limiting mechanism 2 and the second limiting mechanism 3, and the telescopic action of the second push-pull mechanism 12, the welding robot can gradually move up or down on the rod body.

[0059] When the robot reaches the designated position, the welding mechanism 11 is started. The height of the welding mechanism 11 is adjusted by the first push-pull mechanism 112 to ensure that the position of the welding gun 1110 is suitable for the welding point. The first motor 116 is started to drive the driving wheel 115 to rotate, and the welding mechanism 11 is driven to move along the rod body through friction. The second motor 119 is started to drive the screw rod 1113 to rotate, so that the slider 1111 slides along the first L-shaped block 111 to adjust the position of the welding gun 1110. After confirming that the position of the welding gun 1110 is correct, the power supply 18 is started, and the welding gun 1110 starts the welding operation. The camera unit 1112 monitors the welding process in real time, provides visual feedback, and ensures the welding quality. By winding and tightening the belt 24, the robot can adapt to rods of different diameters and curvatures, ensuring stable operation on rods with sudden changes in diameter.

[0060] In summary, the present invention solves the problem that the existing welding robot has poor stability and is easy to fall off when working on a rod body with a changing diameter.

[0061] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information. In addition, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. 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 device or element referred to 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.

[0062] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A welding robot, comprising a connecting mechanism (1), a first limiting mechanism (2) being installed on one side of the connecting mechanism (1), and a second limiting mechanism (3) being installed on the other side of the connecting mechanism (1), the first limiting mechanism (2) and the second limiting mechanism (3) having the same specifications and structures, characterized in that: The connecting mechanism (1) comprises a second push-pull mechanism (12), a first L-shaped plate (15) being mounted on one end of the second push-pull mechanism (12), a second L-shaped plate (19) being mounted on the other end of the second push-pull mechanism (12), a welding mechanism (11) being mounted on the second L-shaped plate (19), the first limiting mechanism (2) being mounted on one end of the first L-shaped plate (15), and the second limiting mechanism (3) being mounted on one end of the second L-shaped plate (19); The first limiting mechanism (2) comprises a side plate (25), one end of the side plate (25) being mounted with a first power mechanism (26), the other end of the side plate (25) being mounted with a second power mechanism (27), the second power mechanism (27) having the same specifications and structure as the first power mechanism (26), the second power mechanism (27) comprising a third motor (271), a rotor of the third motor (271) being mounted with a telescopic rod (276), a support (274) being disposed on an outer sleeve of the telescopic rod (276), the support (274) being rotatably connected to the telescopic rod (276), the support (274) being A connecting rod (272) is installed on both sides of the support (274), one end of the connecting rod (272) is fixedly connected to the side plate (25), a winding mechanism (23) is provided on one side of the second power mechanism (27), the winding mechanism (23) comprises a first gear (21), the first gear (21) is installed with a plurality of belts (24), one end of the belt (24) is installed with a second gear (22), the second gear (22) and the first gear (21) have the same specifications and structure, the side wall of the support (274) is provided with at least one cylinder (273), the cylinder (273) is provided with a rod (275), the rod (275) is slidably connected to the cylinder (273), and one end of the rod (275) is installed with a transmission mechanism (277); The transmission mechanism (277) comprises a frame (2771), wherein the frame (2771) is fixedly connected to one end of the rod body (275), a second gear (2772) rotatably arranged in the frame (2771) and meshing with the first gear (21), and a rotating shaft of the second gear (2772) is fixedly connected to one end of the telescopic rod (276).

2. A welding robot according to claim 1, characterized in that: A sleeve (110) is installed on one side of the second L-shaped plate (19); the welding mechanism (11) comprises a first L-shaped block (111); a first push-pull mechanism (112) is installed at the bottom of the first L-shaped block (111); a second L-shaped block (117) is installed at the bottom of the first push-pull mechanism (112); a bottom plate (113) is installed at the bottom end of the second L-shaped block (117); at least one limiting wheel (114) is installed on one side of the bottom of the bottom plate (113); the limiting wheel (114) is rotatably connected to the bottom plate (113); a first motor (116) is installed on the top of the bottom plate (113); a driving wheel (115) is installed on one side of the bottom of the bottom plate (113); the rotation of the first motor (116) The first L-shaped block (111) is provided with a second motor (119) mounted on one side of the first L-shaped block (111); a lead screw (1113) is mounted on the rotor of the second motor (119); a slider (1111) is disposed on the outer sleeve of the first L-shaped block (111); the slider (1111) is threadedly connected to the lead screw (1113); the slider (1111) is slidably connected to the first L-shaped block (111); a welding gun (1110) is mounted in the slider (1111); and the welding gun (1110) is electrically connected to a power source (18).

3. A welding robot according to claim 1, characterized in that: A first clamping block (2773) is installed at one end of the frame (2771), and a second clamping block (2774) is installed at the other end of the frame (2771); grooves (211) are provided at the top and bottom of the first gear (21); the first clamping block (2773) is arranged in the groove (211) at the bottom of the first gear (21); the second clamping block (2774) is arranged in the groove (211) at the top of the first gear (21); and the first clamping block (2773) and the second clamping block (2774) are both slidably connected to the groove (211).

4. A welding robot according to claim 1, characterized in that: The first gear (21) comprises a first half gear (212) and a second half gear (213); a first fixing ring (214) is sleeved inside the first gear (21); the first fixing ring (214) is used to connect the first half gear (212) and the second half gear (213).

5. A welding robot according to claim 2, characterized in that: The sleeve (110) comprises a first semi-annular block (16) and a second semi-annular block (17); the second semi-annular block (17) is fixedly connected to the second L-shaped plate (19); a second fixing ring (4) is sleeved inside the sleeve (110); the second fixing ring (4) is used to connect the first semi-annular block (16) and the second semi-annular block (17).

6. A welding robot according to claim 2, characterized in that: A support block (118) is fixedly connected to the bottom of the first L-shaped block (111), and the support block (118) is slidably connected to the first push-pull mechanism (112).

7. A welding robot according to claim 2, characterized in that: A camera unit (1112) is installed on the top of the slider (1111), and the camera unit (1112) is electrically connected to the power source (18).

8. The welding robot according to claim 1, characterized in that: The telescopic rod (276) comprises a transmission cylinder (2761), the transmission cylinder (2761) being fixedly connected to the rotor of the third motor (271), a transmission rod (2762) being sleeved inside the transmission cylinder (2761), the transmission rod (2762) being slidably connected to the transmission cylinder (2761), and one end of the transmission rod (2762) being fixedly connected to the rotating shaft of the second gear (2772).

9. A welding robot according to claim 8, characterized in that: A clamping groove is provided on the side wall of the transmission rod (2762), and a clamping strip matching the clamping groove is provided on the inner wall of the transmission cylinder (2761), and the clamping strip is clamped with the clamping groove.

10. The welding robot according to claim 1, characterized in that: At least one positioning rod (13) is installed on one side of the second L-shaped plate (19); a positioning cylinder (14) is provided on the outer shell of the positioning rod (13); the positioning cylinder (14) is slidably connected to the positioning rod (13); and the positioning cylinder (14) is fixedly connected to one side of the first L-shaped plate (15).

Images