High-precision welding robot

Abstract

The invention relates to the technical field of welding robots, and provides a high-precision welding robot which comprises a robot body and a welding support, the robot body is arranged on one side of the welding support, the high-precision welding robot further comprises two discharging trays, the number of the discharging trays is two, and two containing plate bodies are longitudinally and fixedly connected into the discharging trays; a plurality of through sliding grooves are formed in the placing plate body, sliding seats are slidably arranged in one of the through sliding grooves in the lower side and the through sliding grooves in the upper side, and position sensors are arranged in the two corresponding sliding seats on the upper side and the lower side and used for determining a workpiece welding starting point; the other sliding seats located on the upper side are each provided with a clamping assembly. By means of the technical scheme, the technical problem that in the prior art, when workpieces are replaced by a welding robot, the welding precision is affected due to the fact that the difference between the welding starting points of the two kinds of workpieces is too large is solved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of welding robots, and more specifically, to a high-precision welding robot. Background Art

[0002] A welding robot is an industrial robot engaged in welding operations. The welding robot consists of a robot body, a control cabinet, and a welding fixture. When using the welding robot for work, first, the workpiece to be welded needs to be fixed on the welding fixture, and then the output end of the welding robot drives the welding wire to perform welding operations on the workpiece. Using a welding robot for welding operations can effectively improve the welding speed and welding accuracy of the workpiece. Using a welding robot has become an essential welding device on modern large-scale welding production lines.

[0003] During the use of the welding robot, welding operations are often performed on different workpieces. The volumes and welding positions of different workpieces are inconsistent. Therefore, when replacing the workpiece to be welded, the program set in the welding robot needs to be adjusted and replaced. After replacing the program of the welding robot, the moving position of the welding wire driven by the welding robot needs to be reset with the workpiece clamping position on the welding fixture, and the welding starting point needs to be established again on the new workpiece. However, if the difference in the welding starting points between the old and new workpieces is large, a large operation adjustment is required for the driving position of the welding robot. It is easy to have a problem of wire position movement error in the welding robot when the welding robot starts welding for the first time, which affects the welding accuracy of the welding robot. Summary of the Invention

[0004] To overcome the above defects, embodiments of the present invention provide a high-precision welding robot, which solves the technical problem in the related art that the welding accuracy of the welding robot is affected because the difference in the welding starting points of two workpieces is too large when replacing workpieces.

[0005] A high-precision welding robot provided by the present invention includes a robot body and a welding bracket. The robot body is disposed on one side of the welding bracket, and further includes: A feeding tray, the number of the feeding trays is set to two. Two placing plates are longitudinally fixedly connected in the feeding tray. A plurality of through chutes are formed in the placing plate. One of the through chutes located on the lower side and a plurality of the through chutes located on the upper side are both provided with sliding seats. Position sensors are disposed in two corresponding sliding seats on the upper and lower sides. The position sensors are used to determine the welding starting point of the workpiece. Clamping assemblies are disposed on the remaining plurality of sliding seats located on the upper side; Moving components are provided on both the upper and lower sides of the feeding tray, and the moving components are used to drive the sliding seat on the corresponding side to move; Sliding cylinder body, the middle part of the welding bracket is fixedly connected with the sliding cylinder body, through chutes are opened on both sides of the sliding cylinder body, a sliding platform is slidably connected in the through chutes, and a reciprocating movement component is arranged between the two sliding platforms and the sliding cylinder body; Among them, a height adjustment component is arranged between the feeding tray and the sliding platform.

[0006] In order to enable the sliding seat to slide in the through chute, further, a through groove is opened in the middle of the sliding seat, the position sensor is arranged in the sliding seat, and a connecting protrusion is arranged on one side of the sliding seat close to the moving component.

[0007] In order to clamp the workpiece to be welded, further, the clamping component includes a rotating seat and a rotating member, the rotating seat is rotatably connected in the through groove, a clamping plate is fixedly connected to the top of the rotating seat, a rotating member is fixedly connected to the clamping plate, a rotating shaft is rotatably connected to the rotating member, a torsion spring is arranged between the rotating shaft and the rotating member, and a clamping member is fixedly connected to the rotating shaft.

[0008] In order to drive the sliding seat to move in the feeding tray, further, the moving component includes a sliding groove frame, a moving plate body and an electromagnet, the sliding groove frames are fixedly connected to the inner walls on both sides of the feeding tray, the moving plate body is slidably connected between the two sliding groove frames, a transmission lead screw is rotatably connected in one of the sliding groove frames, the moving plate body is threadedly connected to the transmission lead screw, a first driving motor is arranged on the sliding groove frame, the output end of the first driving motor is fixedly connected to the transmission lead screw, and a plurality of electromagnets are arranged on one side of the moving plate body close to the sliding seat.

[0009] In order to keep the connection between the moving plate body and the sliding seat, further, a groove is opened on the connecting protrusion, an iron groove is arranged in the groove, and the electromagnet is magnetically connected to the iron groove.

[0010] In order to enable the two feeding trays to reciprocate in the welding bracket, further, the reciprocating movement component includes a transmission shaft and a second driving motor, a plurality of transmission shafts are rotatably connected in the sliding cylinder body, transmission wheels are arranged on the transmission shafts, a transmission belt is arranged in a transmission manner between the plurality of transmission wheels, the sliding platform is fixedly connected to the transmission belt, and the second driving motor is arranged on the sliding cylinder body, and the output end of the second driving motor is fixedly connected to one of the transmission shafts.

[0011] In order to adjust the height of the material discharging tray, further, the height adjusting component includes a lifting bracket, a lifting lead screw and a third driving motor. The lifting bracket is fixedly connected to the sliding platform, the material discharging tray is slidably connected to the lifting bracket, the lifting lead screw is rotatably connected inside the lifting bracket, the material discharging tray is threadedly connected to the lifting lead screw, a third driving motor is arranged inside the lifting bracket, and the output end of the third driving motor is fixedly connected to the lifting lead screw.

[0012] In order to adjust the height of the material discharging tray, further, a distance measuring device is arranged at the top of the lifting bracket.

[0013] In order to keep the lateral movement of the material discharging tray stable, further, sliding grooves are formed on both sides of the top of the welding bracket, and sliding members are slidably connected inside the sliding grooves.

[0014] In order to improve the lifting stability of the material discharging tray, further, rotating shaft members are arranged at the bottom of the sliding member and the material discharging tray respectively, and a telescopic rod is rotatably arranged between the two rotating shaft members.

[0015] The beneficial effects of the embodiments of the present invention are as follows: In the present invention, when the robot body is used to perform welding operations on two workpieces in sequence, first, according to the placement height of the workpiece that has been welded, the height of the material discharging tray and the workpiece that has not been welded is adjusted through the height adjusting component, so that the welding heights between the two workpieces correspond to each other. And during actual use, first determine the welding starting point area of the workpiece, place one of the sliding seats equipped with a position sensor on the corresponding through chute in the corresponding placement plate body, so that the position sensor located on the lower side locates the welding starting point position of the workpiece. Then move the sliding seat equipped with a position sensor and multiple sliding seats equipped with clamping components on the upper placement plate body, so that the position sensor located on the upper side corresponds to the welding starting point position of the workpiece. And the moving component can also move the positions of multiple sliding seats equipped with clamping components, so that the workpiece is fixed between multiple clamping components. Because multiple clamping components clamp the workpiece, under the action of the workpiece, multiple sliding seats are connected together. Then move the sliding seat equipped with a position sensor and the remaining corresponding sliding seats by the moving component, so that the two position sensors on the upper and lower sides correspond to each other, ensuring that the welding starting point positions of two different workpieces on the two material discharging trays are the same, and improving the accuracy of the subsequent welding operation of the robot body. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings described below are only some exemplary embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the exemplary embodiments of the present invention and these drawings.

[0017] Figure 1 It is a schematic structural diagram of the whole of the present invention; Figure 2 It is a schematic structural diagram of a partial cross-section of the present invention; Figure 3 It is a schematic structural diagram of the cooperation of the material placing tray, the placing plate body, the sliding seat and the moving assembly in the present invention; Figure 4 It is a schematic structural diagram of a partial cross-section of the cooperation of the material placing tray, the placing plate body, the sliding seat and the moving assembly in the present invention; Figure 5 It is a schematic structural diagram of a partial cross-section of the cooperation of the sliding seat and the clamping assembly in the present invention; Figure 6 It is a schematic structural diagram of a partial cross-section of the cooperation of the height adjustment assembly and the material placing tray in the present invention.

[0018] In the figure: 1. Robot body; 2. Welding bracket; 3. Material placing tray; 4. Placing plate body; 5. Sliding seat; 6. Position sensor; 7. Sliding cylinder; 8. Sliding platform; 9. Through groove; 10. Connecting protrusion; 11. Rotating seat; 12. Clamping plate; 13. Rotating member; 14. Torsion spring; 15. Clamping member; 16. Sliding groove frame; 17. Moving plate body; 18. Transmission lead screw; 19. First driving motor; 20. Electromagnet; 21. Ferromagnetic groove; 22. Transmission shaft; 23. Transmission belt; 24. Second driving motor; 25. Lifting bracket; 26. Lifting lead screw; 27. Third driving motor; 28. Distance measuring device; 29. Sliding groove; 30. Sliding member; 31. Rotating shaft member; 32. Expansion rod. Specific embodiments

[0019] The following will further elaborate on the present invention in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention.

[0020] To simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. Additionally, to simplify the drawings for easier understanding, for components with the same structure or function in some figures, only one of them is schematically shown, or only one of them is labeled. In this text, "one" not only means "only this one" but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0021] In this text, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", and "joined" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0022] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can include the direct contact between the first and second features, or can also include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0023] In the description of this embodiment, the orientation or positional relationships such as "up", "down", "left", and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0024] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0025] As Figures 1 to 6 shown, the present invention discloses a high-precision welding robot, including a robot body 1 and a welding bracket 2. The robot body 1 is arranged on one side of the welding bracket 2. The robot body 1 is a commonly used welding device in the prior art and is a well-known prior art device in the art. By installing a wire feeding device on the robot body 1, during the use of the robot body 1, the automated welding technology for workpieces can be ensured.

[0026] It also includes a feeding tray 3. The number of feeding trays 3 is set to two. Two placing plates 4 are longitudinally fixedly connected inside the feeding tray 3. A plurality of through chutes are formed in the placing plates 4. One of the through chutes located on the lower side and a plurality of through chutes located on the upper side are both provided with sliding seats 5. Position sensors 6 are arranged in two corresponding sliding seats 5 on the upper and lower sides. The position sensors 6 are used to determine the starting point of workpiece welding. A clamping assembly is arranged on the remaining plurality of sliding seats 5 located on the upper side. A through groove 9 is formed in the middle of the sliding seat 5. The position sensor 6 is arranged inside the sliding seat 5. A connecting protrusion 10 is arranged on one side of the sliding seat 5 close to the moving assembly. In order to enable the sliding seat 5 to slide on the placing plate 4, or to complete the movement of the sliding seat 5 into or out of the placing plate 4, so that the outer wall of the sliding seat 5 is in full contact and engagement with the inner wall of the through chute, and in the through groove 9 formed in the middle of the sliding seat 5, it can be used to install the position sensor 6 or the rotating seat 11.

[0027] The clamping assembly includes a rotating seat 11 and a rotating member 13. The rotating seat 11 is rotatably connected in the through groove 9. A clamping plate 12 is fixedly connected to the top of the rotating seat 11. A rotating member 13 is fixedly connected to the clamping plate 12. A rotating shaft is rotatably connected to the rotating member 13. A torsion spring 14 is arranged between the rotating shaft and the rotating member 13. A clamping member 15 is fixedly connected to the rotating shaft. When it is necessary to fix the workpiece on the feeding tray 3, first use the moving assembly to move the positions of the plurality of sliding seats 5 in the through chute, so that the plurality of sliding seats 5 and the clamping assembly move to the corresponding clamping areas of the workpiece. Then move the workpiece to the top ends between the plurality of clamping plates 12. Then, under the torsional force of the torsion spring 14, the clamping member 15 and the clamping plate 12 cooperate to clamp the workpiece.

[0028] Moving components are arranged on both the upper and lower sides of the feeding tray 3. The moving components are used to drive the sliding seats 5 on the corresponding side to move. The moving components include sliding groove frames 16, moving plates 17, and electromagnets 20. Sliding groove frames 16 are fixedly connected to the inner walls on both sides of the feeding tray 3. The moving plates 17 are slidably connected between the two sliding groove frames 16. A transmission lead screw 18 is rotatably connected in one of the sliding groove frames 16. The moving plate 17 is threadedly connected to the transmission lead screw 18. A first driving motor 19 is arranged on the sliding groove frame 16. The output end of the first driving motor 19 is fixedly connected to the transmission lead screw 18. A plurality of electromagnets 20 are arranged on the side of the moving plate 17 close to the sliding seat 5. Grooves are formed on the connecting protrusion 10, and ferromagnetic grooves 21 are arranged in the grooves. The electromagnets 20 are magnetically connected to the ferromagnetic grooves 21. When it is necessary to drive a plurality of sliding seats 5 to move on the placing plate 4 and make different sliding seats 5 distributed at different positions on the placing plate 4, first arrange a plurality of sliding seats 5 in sequence on one side of the placing plate 4, and then start the first driving motor 19 to drive the transmission lead screw 18 to rotate, so that the moving plate 17 moves between the two sliding groove frames 16, and a plurality of electromagnets 20 sequentially enter into the ferromagnetic grooves 21, so that magnetic connection is carried out between the electromagnets 20 and the ferromagnetic grooves 21. Then, during the subsequent movement of the moving plate 17, the moving plate 17 drives a plurality of sliding seats 5 to move together. When a certain sliding seat 5 moves to the designated position, power supply to the electromagnet 20 corresponding to this sliding seat 5 is stopped, so that the magnetic connection relationship between the electromagnet 20 and the ferromagnetic groove 21 is released, and the sliding seat 5 and the clamping component stop at the corresponding position on the placing plate 4.

[0029] A sliding cylinder body 7 is fixedly connected to the middle of the welding bracket 2. Through grooves are formed on both sides of the sliding cylinder body 7. A sliding platform 8 is slidably connected in the through grooves. A reciprocating movement component is arranged between the two sliding platforms 8 and the sliding cylinder body 7. The reciprocating movement component includes a transmission shaft 22 and a second driving motor 24. A plurality of transmission shafts 22 are rotatably connected in the sliding cylinder body 7. Transmission wheels are arranged on the transmission shafts 22. A transmission belt 23 is transmission - arranged between the plurality of transmission wheels. The sliding platform 8 is fixedly connected to the transmission belt 23. A second driving motor 24 is arranged on the sliding cylinder body 7. The output end of the second driving motor 24 is fixedly connected to one of the transmission shafts 22. When it is necessary to drive the two feeding trays 3 to move reciprocally so that the workpieces on the two feeding trays 3 are welded in sequence, start the second driving motor 24 to drive the transmission shaft 22 to rotate, so that the plurality of transmission shafts 22 and the plurality of transmission wheels drive the transmission belt 23 to move in the sliding cylinder body 7. The transmission belt 23 drives the sliding platform 8, the lifting bracket 25, and the feeding tray 3 to move, and adjusts the positions of the two feeding trays 3. With the forward and reverse rotation operation of the output end of the second driving motor 24, the two feeding trays 3 are driven to move reciprocally.

[0030] Among them, a height adjustment component is provided between the material placing tray 3 and the sliding platform 8. The height adjustment component includes a lifting bracket 25, a lifting lead screw 26 and a third driving motor 27. The lifting bracket 25 is fixedly connected to the sliding platform 8, the material placing tray 3 is slidably connected to the lifting bracket 25, the lifting lead screw 26 is rotatably connected inside the lifting bracket 25, the material placing tray 3 is threadedly connected to the lifting lead screw 26, the third driving motor 27 is arranged inside the lifting bracket 25, and the output end of the third driving motor 27 is fixedly connected to the lifting lead screw 26. When it is necessary to keep the welding heights of the workpieces in the two material placing trays 3 consistent, the third driving motor 27 is started to drive the lifting lead screw 26 to rotate, so that the material placing tray 3 moves longitudinally on the lifting bracket 25 to adjust the height of the material placing tray 3 and the workpiece; A distance measuring device 28 is arranged at the top of the lifting bracket 25. The distance measuring device 28 is a distance measuring and sensing device well-known in the art. By using the distance measuring device 28, the distance between the workpiece and the distance measuring device 28 can be determined, which is convenient for adjusting the height of another workpiece.

[0031] Sliding grooves 29 are formed on both sides of the top of the welding bracket 2. Sliding members 30 are slidably connected inside the sliding grooves 29. Rotating shaft members 31 are arranged at the bottoms of the sliding members 30 and the material placing tray 3 respectively. A telescopic rod 32 is rotatably arranged between the two rotating shaft members 31. In order to improve the stability of the transverse and longitudinal movement of the material placing tray 3, when the material placing tray 3 moves transversely, the sliding member 30 moves together with the material placing tray 3 under the connection action of the telescopic rod 32, so that the transverse movement of the material placing tray 3 is kept stable. And when the material placing tray 3 moves longitudinally, the telescopic rod 32 expands or contracts between the sliding member 30 and the material placing tray 3, so that the longitudinal movement of the material placing tray 3 is kept stable.

[0032] The working principle of this high-precision welding robot: First, when replacing the workpiece to be welded, adjust the position and height of the workpiece not yet welded on the feeding tray 3 according to the welding starting point position of the workpiece being welded and the installation height of the workpiece. Move the sliding seat 5 equipped with the position sensor 6 into the placing plate body 4 on the lower side inside the feeding tray 3, and use the moving component to move the sliding seat 5 so that the position of the sliding seat 5 corresponds to the position inside another feeding tray 3. Then, arrange multiple sliding seats 5 in sequence on one side of the placing plate body 4. Then, start the first driving motor 19 to drive the transmission lead screw 18 to rotate, so that the moving plate body 17 moves between the two sliding groove frames 16, and make multiple electromagnets 20 sequentially enter the ferromagnetic grooves 21, so that magnetic connection is carried out between the electromagnets 20 and the ferromagnetic grooves 21. Then, during the subsequent movement of the moving plate body 17, the moving plate body 17 drives multiple sliding seats 5 to move together. After a certain sliding seat 5 moves to the designated position, stop supplying power to the electromagnet 20 corresponding to the sliding seat 5, so that the magnetic connection relationship between the electromagnet 20 and the ferromagnetic groove 21 is released, and the sliding seat 5 and the clamping component stop at the corresponding position on the placing plate body 4. And because multiple clamping components clamp the workpiece, under the action of the workpiece, multiple sliding seats 5 are connected together. Then, make the moving component move the sliding seat 5 equipped with the position sensor 6 and the other corresponding sliding seats 5 to move, so that the two position sensors 6 on the upper and lower sides correspond to each other, ensuring that the welding starting point positions of the two different workpieces on the two feeding trays 3 are the same; Then, start the third driving motor 27 to drive the lifting lead screw 26 to rotate, so that the feeding tray 3 moves longitudinally on the lifting support 25 to adjust the height of the feeding tray 3 and the workpiece, so that the heights of the two workpieces are also the same. Then, start the second driving motor 24 to drive the transmission shaft 22 to rotate, so that multiple transmission shafts 22 and multiple transmission wheels drive the transmission belt 23 to move inside the sliding cylinder body 7. The transmission belt 23 drives the sliding platform 8, the lifting support 25 and the feeding tray 3 to move to adjust the positions of the two feeding trays 3. With the forward and reverse operation of the output end of the second driving motor 24, drive the two feeding trays 3 to move reciprocally, so that the two workpieces take turns to perform the welding operation.

[0033] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A high-precision welding robot, comprising a robot body (1) and a welding bracket (2), the robot body (1) being disposed on one side of the welding bracket (2), characterized in that, Further included are: A material feeding tray (3), the number of the material feeding trays (3) is set to two, two placing plates (4) are longitudinally and fixedly connected inside the material feeding tray (3), a plurality of through chutes are formed in the placing plates (4), a sliding seat (5) is slidably arranged in one of the through chutes located at the lower side and a plurality of the through chutes located at the upper side, a position sensor (6) is arranged in each of the two corresponding sliding seats (5) on the upper and lower sides, the position sensor (6) is used for determining the starting point of workpiece welding, and a clamping assembly is arranged on each of the remaining plurality of sliding seats (5) located at the upper side; A moving assembly, the moving assembly is arranged on both the upper and lower sides of the material feeding tray (3), and the moving assembly is used for driving the sliding seat (5) on the corresponding side to move; A sliding cylinder body (7), the sliding cylinder body (7) is fixedly connected to the middle of the welding bracket (2), through chutes are formed on both sides of the sliding cylinder body (7), a sliding platform (8) is slidably connected in the through chutes, and a reciprocating moving assembly is arranged between the two sliding platforms (8) and the sliding cylinder body (7); Wherein, a height adjusting assembly is arranged between the material feeding tray (3) and the sliding platform (8).

2. The high-precision welding robot according to claim 1, characterized in that, A through groove (9) is formed in the middle of the sliding seat (5), the position sensor (6) is arranged in the sliding seat (5), and a connecting protrusion (10) is arranged on one side of the sliding seat (5) close to the moving assembly.

3. The high-precision welding robot according to claim 2, characterized in that, The clamping assembly includes: A rotating seat (11), the rotating seat (11) is rotatably connected in the through groove (9), and a clamping plate (12) is fixedly connected to the top of the rotating seat (11); A rotating member (13), the rotating member (13) is fixedly connected to the clamping plate (12), a rotating shaft is rotatably connected to the rotating member (13), a torsion spring (14) is arranged between the rotating shaft and the rotating member (13), and a clamping member (15) is fixedly connected to the rotating shaft.

4. The high-precision welding robot according to claim 3, wherein The moving assembly includes: A sliding groove frame (16), the sliding groove frame (16) is fixedly connected to the inner walls on both sides of the material feeding tray (3); A moving plate body (17), the moving plate body (17) is slidably connected between the two sliding groove frames (16), a transmission lead screw (18) is rotatably connected in one of the sliding groove frames (16), the moving plate body (17) is threadedly connected to the transmission lead screw (18), a first driving motor (19) is arranged on the sliding groove frame (16), and an output end of the first driving motor (19) is fixedly connected to the transmission lead screw (18); Electromagnets (20), a plurality of the electromagnets (20) are arranged on one side of the moving plate body (17) close to the sliding seat (5).

5. A high-precision welding robot according to claim 4, characterized in that, A groove is formed in the connecting protrusion (10), a ferromagnetic groove (21) is arranged in the groove, and the electromagnet (20) is magnetically connected to the ferromagnetic groove (21).

6. The high-precision welding robot according to claim 5, characterized in that, The reciprocating moving assembly includes: A transmission shaft (22), wherein a plurality of the transmission shafts (22) are rotatably connected within the sliding cylinder body (7). Transmission wheels are arranged on the transmission shafts (22), and a transmission belt (23) is transmission - arranged between the plurality of transmission wheels. The sliding platform (8) is fixedly connected to the transmission belt (23); A second driving motor (24), wherein the second driving motor (24) is arranged on the sliding cylinder body (7), and an output end of the second driving motor (24) is fixedly connected to one of the transmission shafts (22).

7. A high-precision welding robot according to claim 6, wherein, The height - adjusting assembly includes: A lifting bracket (25), the lifting bracket (25) is fixedly connected to the sliding platform (8), and the material - placing tray (3) is slidably connected to the lifting bracket (25); A lifting lead screw (26), the lifting lead screw (26) is rotatably connected within the lifting bracket (25), and the material - placing tray (3) is threadedly connected to the lifting lead screw (26); A third driving motor (27), the third driving motor (27) is arranged within the lifting bracket (25), and an output end of the third driving motor (27) is fixedly connected to the lifting lead screw (26).

8. A high-precision welding robot according to claim 7, characterized in that, A distance - measuring device (28) is arranged at the top of the lifting bracket (25).

9. The high-precision welding robot according to claim 8, characterized in that, Sliding grooves (29) are formed on both sides of the top of the welding bracket (2), and sliding members (30) are slidably connected within the sliding grooves (29).

10. A high-precision welding robot according to claim 9, characterized in that, Rotating shaft members (31) are arranged at the bottom of both the sliding member (30) and the material - placing tray (3), and a telescopic rod (32) is rotatably arranged between the two rotating shaft members (31).

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