Modular combined three-shaft rotary electric welding machine with convenient disassembly

Abstract

The utility model belongs to automatic electric welding machine technical field discloses a modularization combination three -axle formula rotary electric welding machine of convenient dismounting, including rotating main body, modularization two -axle moving device, wire feeder, welding torch and wire feeding disc, rotating main body is provided with perpendicular female socket, modularization two -axle moving device is provided with perpendicular male plug -in board, perpendicular male plug -in board is perpendicular to insert perpendicular female socket and connects fixed modularization two -axle moving device on rotating main body, wire feeder is connected and fixed in rotating main body side, wire feeding disc is connected and fixed in rotating main body top surface, and welding torch is connected and fixed on modularization two -axle moving device. The utility model can need flexibly with rotating main body, modularization two -axle moving device fast dismounting to be suitable for specific narrow work scene.

Description

Technical Field

[0001] This utility model relates to the field of automatic welding machine technology, specifically a modular three-axis rotary welding machine that is easy to assemble and disassemble. Background Technology

[0002] Electric welding machines use electrical energy, instantly converting it into heat energy. They are widely used in various fields due to their simple operation, ease of use, and strong welds. However, due to the limitations of their working principle, most electric welding machines currently in use are relatively bulky and unsuitable for certain specific work scenarios, such as welding intersecting seams within large pipelines. In such scenarios, the welding machine needs to be flexibly placed within the space where the pipelines intersect to weld saddle-shaped seams. Existing welding machines are not suitable for such confined spaces. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic welding machine rotating body to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a modular three-axis rotary welding machine that is easy to assemble and disassemble, comprising a rotating body, a modular two-axis moving device, a wire feeding device, a welding torch, and a wire feeding reel. The rotating body is provided with a vertical female socket, and the modular two-axis moving device is provided with a vertical male socket. The vertical male socket is vertically inserted into the vertical female socket to connect and fix the modular two-axis moving device to the rotating body. The wire feeding device is connected and fixed to the side of the rotating body, the wire feeding reel is connected and fixed to the top surface of the rotating body, and the welding torch is connected and fixed to the modular two-axis moving device.

[0005] The rotating body includes a centering cylinder, a three-jaw chuck, a rotary locking disc quick-release seat, and a welding machine rotating body. The three-jaw chuck inserts its three jaws into the centering cylinder and is fixedly connected to the centering cylinder by contraction and extension of the three jaws. The lower end face of the rotary locking disc quick-release seat is fixedly connected to the upper end face of the three-jaw chuck, and the upper end face of the rotary locking disc quick-release seat is fixedly connected to the lower end face of the welding machine rotating body. The welding machine rotating body, the rotary locking disc quick-release seat, the three-jaw chuck, and the centering cylinder can be quickly assembled and disassembled.

[0006] The rotary locking disc quick-release base includes a quick-connect female base and a quick-connect male connector. The quick-connect female base is hollow inside, and its upper end face is provided with evenly distributed female baffles. Evenly distributed female notch spaces are provided between adjacent female baffles. Evenly distributed female fixing installation through holes are provided on the end face of the quick-connect female base to facilitate bolt fixing to the upper end face of the three-jaw chuck. Evenly distributed female positioning through holes are provided on the side of the quick-connect female base to facilitate screw connection and fixing to the quick-connect male connector. Evenly distributed male connector plates are provided on the lower end face of the quick-connect male connector. Evenly distributed male notch spaces are provided between adjacent male connector plates. Male screw positioning holes are provided on the side of the male connector plates to facilitate screw fixing to the female positioning through holes. Evenly distributed male fixing installation through holes are provided on the upper end face of the quick-connect male connector to facilitate screw fixing to the rotating body of the welding machine.

[0007] Preferably, the number of the female baffle, female fixed mounting through hole, female positioning through hole, male insert plate, male fixed mounting through hole and male screw positioning hole are all 3.

[0008] The rotating body of the welding machine includes a base, a main motor, a reducer, a moving gear, a core cylinder, an upper cover, a transmission bearing, a transmission shaft, fixing bolts, anti-detachment washers, and a fixed gear. The base has a left mounting hole and a right mounting hole. A transmission bearing seat is located on the bottom surface of the left mounting hole. The main motor is connected to the reducer. The reducer is fixed in the right mounting hole. The transmission shaft of the reducer passes through the right mounting hole and is connected and fixed to the moving gear. The core cylinder covers the left mounting hole. The upper end of the core cylinder is connected to the upper cover, which is equipped with a transmission bearing seat. The transmission bearing seat and the... The transmission bearings are installed in the transmission bearing seats within the base, and the transmission bearings are connected to the transmission shaft. The upper and lower end faces of the transmission shaft have countersunk screw holes. The fixed gear has a mounting through hole at its center. The fixed gear is fixed to the bottom surface of the base corresponding to the left mounting hole and meshes with the moving gear for transmission. Below the core cylinder, the fixing bolts pass through the anti-loosening washer, the fixed gear, and the countersunk screw holes in the transmission shaft to prevent displacement of the transmission bearings. Above the core cylinder, the fixing bolts pass through the anti-loosening washer and the countersunk screw holes in the transmission shaft to prevent displacement of the transmission bearings. Furthermore, to ensure that the fixing bolt can be quickly aligned and fixed to the countersunk hole on the drive shaft, a self-aligning bushing is also included. The self-aligning bushing abuts against the inner ring of the drive bearing, with a height equal to the thickness of the anti-loosening washer and an outer diameter not greater than the center hole of the anti-loosening washer. The fixing bolt passes through the self-aligning bushing and the anti-loosening washer and is fixed to the countersunk hole in the drive shaft.

[0009] The modular two-axis moving device includes a horizontal moving module, a vertical moving module, a horizontal female socket, and a horizontal male socket. The horizontal female socket is installed on the left side of the back of the horizontal moving module, and the horizontal male socket is installed on the lower front of the vertical moving module. The horizontal moving module is connected and fixed to the core tube by inserting the vertical male socket into the vertical female socket, and the vertical moving module is connected and fixed to the horizontal moving module by inserting the horizontal male socket into the horizontal female socket.

[0010] The horizontal movement module includes a horizontal base plate, a horizontal slide block, a horizontal lead screw support, a horizontal lead screw moving seat, a horizontal lead screw, a horizontal motor, a horizontal drive pulley, a horizontal driven pulley, and a horizontal belt. The back of the horizontal base plate is provided with vertically distributed horizontal slide rails. The horizontal slide block is provided with a slide groove corresponding to the horizontal slide rails. The horizontal slide block is slidably connected to the horizontal slide rails. A horizontal lead screw support is provided on the outer side of each end of the horizontal slide rail. The horizontal lead screw support is fixed to the horizontal base plate. The horizontal lead screw moving seat is located beside one side of the horizontal slide block. The horizontal lead screw moving seat is fixedly connected to the vertical male plug plate. The horizontal lead screw passes through the horizontal slide and the horizontal lead screw moving seat. The horizontal lead screw is connected to the horizontal lead screw moving seat with a reverse thread. The horizontal lead screw is rotatably connected to the bearing installed in the horizontal lead screw support seat. One end of the horizontal lead screw extends out of the left side of the horizontal lead screw support seat and is fixedly connected to the horizontal driven pulley. The horizontal motor is fixed to the right end of the front of the horizontal base plate. The output shaft of the horizontal motor is connected to and fixed to the horizontal driving pulley. The horizontal driving pulley and the horizontal driven pulley are linked by the horizontal belt.

[0011] The vertical movement module includes a vertical base plate, a vertical slide block, a vertical lead screw support, a vertical lead screw moving seat, a vertical lead screw, a vertical motor, a vertical drive pulley, a vertical driven pulley, and a vertical belt. A vertical slide rail is provided on the front of the vertical base plate. The vertical slide block has a corresponding groove to the vertical slide rail, and the vertical slide block is slidably connected to the vertical slide rail. Vertical lead screw supports are provided on the outer sides of both ends of the vertical slide rail. The vertical lead screw supports are fixed to the vertical base plate, and the vertical slide block is fixed to the back of the horizontal male connector plate. The vertical lead screw moving seat is fixed to the front of the horizontal male connector plate. The vertical lead screw passes through the vertical lead screw moving seat and is connected to it via a reverse thread. The vertical lead screw is rotatably connected to a bearing installed inside the vertical lead screw support. One end of the vertical lead screw extends above the vertical lead screw support and is fixedly connected to the vertical driven pulley. The vertical motor is fixed to the upper part of the back of the vertical base plate. The output shaft of the vertical motor is connected to and fixedly fixed to the vertical drive pulley. The vertical drive pulley and the vertical driven pulley are linked by the vertical belt.

[0012] Compared with the prior art, this utility model can flexibly and quickly disassemble and assemble the rotating body and the modular two-axis moving device as needed to suit specific confined working scenarios. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the exploded three-dimensional structure of the rotating main body; Figure 3 An exploded view of the three-dimensional structure of the rotary lock disc quick-release base; Figure 4 This is one of the exploded three-dimensional schematic diagrams of the rotating main body of the welding machine; Figure 5 The second exploded view of the three-dimensional structure of the rotating main body of the welding machine; Figure 6 A three-dimensional structural diagram of the rotating main body and the modular two-axis moving device; Figure 7 This is one of the schematic diagrams of the three-dimensional structure of the horizontal moving module; Figure 8 This is the second schematic diagram of the three-dimensional structure of the horizontal moving module; Figure 9 This is a schematic diagram of the three-dimensional structure of the vertical moving module. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings, but this is not intended to limit the utility model.

[0015] Figure 1 , Figure 6 A modular three-axis rotary welding machine that is easy to assemble and disassemble is shown. It includes a rotating body 1, a modular two-axis moving device 2, a wire feeding device 3, a welding torch 4, and a wire feeding reel 5. The rotating body 1 is provided with a vertical female socket 101, and the modular two-axis moving device 2 is provided with a vertical male socket 201. The vertical male socket 201 is vertically inserted into the vertical female socket 101 to connect and fix the modular two-axis moving device 2 to the rotating body 1. The wire feeding device 3 is connected and fixed to the side of the rotating body 1, the wire feeding reel 5 is connected and fixed to the top surface of the rotating body 1, and the welding torch 4 is connected and fixed to the modular two-axis moving device 2.

[0016] like Figure 2As shown, the rotating body 1 includes a centering cylinder 11, a three-jaw chuck 12, a rotary locking disc quick-release seat 13, and a welding machine rotating body 14. The three-jaw chuck 12 inserts into the centering cylinder 11 and is fixedly connected to the centering cylinder 11 by the contraction and extension of the three-jaw chuck. The lower end face of the rotary locking disc quick-release seat 13 is fixedly connected to the upper end face of the three-jaw chuck 12, and the upper end face of the rotary locking disc quick-release seat 13 is fixedly connected to the lower end face of the welding machine rotating body 14. The welding machine rotating body 14, the rotary locking disc quick-release seat 13, the three-jaw chuck 12, and the centering cylinder 11 can be quickly assembled and disassembled.

[0017] Figure 3 The rotary locking disc quick-release base 13 is shown, including a quick-release female base 131 and a quick-release male connector 132. The quick-release female base 131 is hollow inside, and its upper end face is provided with evenly distributed female baffles 1311. Evenly distributed female notch spaces 1312 are provided between adjacent female baffles 1311. Evenly distributed female fixing mounting through holes 1313 are opened on the end face of the quick-release female base 131 to facilitate bolt fixing to the upper end face of the three-jaw chuck 12. Evenly distributed female positioning through holes 13 are opened on the side of the quick-release female base 131. 14 is provided for connection and fixation with the quick-connect male connector 132 by screws; the lower end face of the quick-connect male connector 132 is provided with evenly distributed male insert plates 1321, and the adjacent male insert plates 1321 are provided with evenly distributed male notch spaces 1322. The side of the male insert plate 1321 is provided with male screw positioning holes 1323 for screw fixation with female positioning through holes 1314. The upper end face of the quick-connect male connector 132 is provided with evenly distributed male fixing installation through holes 1324 for screw fixation with the rotating body 14 of the welding machine.

[0018] Preferably, the number of female baffle 1311, female fixed mounting through hole 1313, female positioning through hole 1314, male insert plate 1321, male fixed mounting through hole 1324 and male screw positioning hole 1323 are all 3.

[0019] Figure 4 , Figure 5The rotating body 14 of the welding machine is shown to include a base 141, a main motor 142, a reducer 143, a moving gear 144, a core cylinder 145, an upper end cover 146, a transmission bearing 147, a transmission shaft 148, fixing bolts 149, anti-detachment washers 1410, and a fixed gear 1411. The base 141 has a left mounting hole and a right mounting hole. A transmission bearing seat is provided on the bottom surface of the left mounting hole. The main motor 142 is connected to the reducer 143. The reducer 143 is fixed in the right mounting hole. The transmission shaft of the reducer 143 passes through the right mounting hole and is connected and fixed to the moving gear 144. The core cylinder 145 covers the left mounting hole. The upper end cover 146 is connected to the upper end of the core cylinder 145. The upper end cover 146 is provided with a transmission bearing seat. Both the base and the seat 141 contain drive bearings 147, which are connected to the drive shaft 148. The upper and lower end faces of the drive shaft 148 have countersunk screw holes. The fixed gear 1411 has a through hole at its center. The fixed gear 1411 is fixed to the bottom surface of the base 141 corresponding to the left mounting hole and meshes with the moving gear 144 for transmission. Below the core tube 145, fixing bolts 149 pass through anti-detachment washers 1410 and are connected to the countersunk screw holes in the drive shaft 148 to prevent displacement of the drive bearing 147. Above the core tube 145, fixing bolts 149 pass through anti-detachment washers 1410 and are connected to the countersunk screw holes in the drive shaft 148 to prevent displacement of the drive bearing 147. Furthermore, to ensure that the fixing bolt 149 can be quickly aligned and connected to the countersunk hole on the drive shaft 148, a self-aligning bushing 1412 is also included. The self-aligning bushing 1412 abuts against the inner ring of the drive bearing 147, with a height equal to the thickness of the anti-loosening washer 1410 and an outer diameter not greater than the center hole of the anti-loosening washer 1410. The fixing bolt 149 passes through the self-aligning bushing 1412 and the anti-loosening washer 1410 and is connected and fixed to the countersunk hole in the drive shaft 148.

[0020] like Figure 6 As shown, the modular two-axis moving device 2 includes a horizontal moving module (21), a vertical moving module (22), a horizontal female socket (23), and a horizontal male socket (24). The horizontal female socket (23) is installed on the left side of the back of the horizontal moving module (21), and the horizontal male socket (24) is installed on the lower front of the vertical moving module (22). The horizontal moving module (21) is connected to and fixed to the core tube (145) by inserting the vertical male socket (201) into the vertical female socket (101). The vertical moving module (22) is connected to and fixed to the horizontal moving module (21) by inserting the horizontal male socket (24) into the horizontal female socket (23).

[0021] like Figure 7 , Figure 8As shown, the horizontal moving module (21) includes a horizontal base plate (211), a horizontal slide block (212), a horizontal lead screw support (213), a horizontal lead screw moving seat (214), a horizontal lead screw (215), a horizontal motor (216), a horizontal driving pulley (217), a horizontal driven pulley (218), and a horizontal belt (219). A horizontal slide rail (2111) is provided on the back of the horizontal base plate (211), distributed vertically. The horizontal slide block (212) is provided with a corresponding groove to the horizontal slide rail (2111). The horizontal slide block (212) is slidably connected to the horizontal slide rail (2111). A horizontal lead screw support (213) is provided on the outer sides of both ends of the horizontal slide rail (2111). The horizontal lead screw support (213) is fixed on the horizontal base plate (211). The horizontal lead screw moving seat (214) is located on the horizontal slide block (211). 12) On one side, the horizontal slide (212), the horizontal lead screw moving seat (214) and the vertical male plug plate 201 are fixedly connected. The horizontal lead screw (215) passes through the horizontal slide (212) and the horizontal lead screw moving seat (214). The horizontal lead screw (215) and the horizontal lead screw moving seat (214) are connected by reverse thread. The horizontal lead screw (215) is rotatably connected to the bearing installed in the horizontal lead screw support seat (213). One end of the horizontal lead screw (215) extends out of the horizontal lead screw support seat (213) on the left side and is fixedly connected to the horizontal driven pulley (218). The horizontal motor (216) is fixed on the right side of the front of the horizontal base plate (211). The output shaft of the horizontal motor (216) is connected to the fixed horizontal driving pulley (217). The horizontal driving pulley (217) and the horizontal driven pulley (218) are linked by the horizontal belt (219).

[0022] like Figure 9As shown, the vertical moving module (22) includes a vertical base plate (221), a vertical slide block (222), a vertical screw support (223), a vertical screw moving seat (224), a vertical screw (225), a vertical motor (226), a vertical drive pulley (227), a vertical driven pulley (228), and a vertical belt (229). A vertical slide rail (2211) is provided on the front of the vertical base plate (221). The vertical slide block (222) is provided with a corresponding groove to the vertical slide rail (2211). The vertical slide block (222) is slidably connected to the vertical slide rail (2211). A vertical screw support (223) is provided on the outer side of each end of the vertical slide rail (2211). The vertical screw support (223) is fixed on the vertical base plate (221). 2) The vertical screw moving seat (224) is fixed on the back of the horizontal male socket plate (24), and the vertical screw moving seat (224) is fixed on the front of the horizontal male socket plate (24). The vertical screw (225) passes through the vertical screw moving seat (224) and is connected to the vertical screw moving seat (224) with a reverse thread. The vertical screw (225) is rotatably connected to the bearing installed in the vertical screw support seat (223). One end of the vertical screw (225) extends out of the upper vertical screw support seat (223) and is fixedly connected to the vertical driven pulley (228). The vertical motor (226) is fixed on the upper part of the back of the vertical base plate (221). The output shaft of the vertical motor (226) is connected to and fixed to the vertical driving pulley (227). The vertical driving pulley (227) and the vertical driven pulley (228) are linked by the vertical belt (229).

[0023] Working principle of this utility model: like Figures 1 to 9 As shown, the installation process is as follows: First, fix the vertical female socket 101 to the front side of the core tube 145. Install the vertical male socket 201 and the horizontal female socket 23 on the back of the horizontal moving module 21. Insert the vertical male socket 201 into the vertical female socket 101 from top to bottom and fix it to secure the horizontal moving module 21 to the core tube 145. Fix the horizontal male socket 24 to the front of the vertical moving module 22, and then insert the horizontal male socket 24 into the horizontal female socket 23 from left to right and fix it to secure the vertical moving module 22. Pass the welding wire from the wire feeder 5 into the wire feeder 3 and then into the welding torch 4 to complete the installation process.

[0024] 1) When the welding torch 4 needs to rotate, the main motor 142 rotates and is reduced in speed by the reducer 143, which drives the moving gear 144 to mesh around the outer periphery of the fixed gear 1411 with the transmission shaft 148 as the center. At this time, the main motor 142, reducer 143, core cylinder 145 and upper end cover 146 fixed on the base 141 also move in a circle around the transmission shaft 148 in a synchronous manner, thereby driving the welding torch 4 to rotate.

[0025] Compared with the prior art, this utility model can flexibly disassemble and assemble the centering cylinder, three-jaw chuck, rotary locking disc quick-release seat and welding machine rotating body as needed to suit specific narrow working scenarios.

[0026] 2) When the welding torch 4 needs to move horizontally, i.e. when the horizontal moving module 21 moves horizontally, the horizontal motor 216 starts to rotate, driving the horizontal drive pulley 217 to rotate and driving the horizontal driven pulley 218 in conjunction with the horizontal belt 219. At this time, the horizontal rod 215 rotates. Since the horizontal lead screw moving seat 214 is provided with a thread that is opposite to the thread of the horizontal lead screw 215, the horizontal lead screw 215 and the horizontal lead screw moving seat 214 will move in position. At the same time, since the horizontal slide 212, the horizontal lead screw moving seat 214 and the vertical male insert plate 201 are fixedly connected, and the vertical male insert plate 201 is fixed on the core tube 145, the horizontal slide rail 2111 will slide synchronously along the horizontal slide 212, thereby driving the horizontal base plate 211 to move synchronously. When the horizontal motor 216 starts to rotate in the opposite direction, the horizontal base plate 211 will move in the opposite direction.

[0027] 3) When the welding torch 4 needs to move vertically, i.e. when the vertical moving module 22 needs to move vertically, the vertical motor 226 starts to rotate, driving the vertical drive pulley 227 to rotate and driving the vertical driven pulley 228 in conjunction with the vertical belt 229. At this time, the vertical lead screw 225 rotates. Since the vertical lead screw moving seat 224 is provided with a thread that is opposite to the thread of the vertical lead screw 225, the vertical lead screw 225 and the vertical lead screw moving seat 224 will move in position. At the same time, since the vertical slide 222, the vertical lead screw moving seat 224 and the horizontal male plug plate 24 are fixedly connected, and the horizontal male plug plate 24 is fixed on the horizontal moving module 21, the vertical slide rail 2211 will slide synchronously along the vertical slide 222, thereby driving the vertical base plate 221 to move synchronously. When the vertical motor 226 starts to rotate in the opposite direction, the vertical base plate 221 will move in the opposite direction.

[0028] Compared with the prior art, this utility model can flexibly and quickly disassemble and assemble the rotating body and the modular two-axis moving device as needed to suit specific confined working scenarios.

[0029] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations to these embodiments without departing from the principles and spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A modular, easily assembled, three-axis rotary welding machine, characterized in that, The device includes a rotating body (1), a modular two-axis moving device (2), a wire feeding device (3), a welding torch (4), and a wire feeding reel (5). The rotating body (1) is provided with a vertical female socket (101), and the modular two-axis moving device (2) is provided with a vertical male socket (201). The vertical male socket (201) is vertically inserted into the vertical female socket (101) to connect and fix the modular two-axis moving device (2) to the rotating body (1). The wire feeding device (3) is connected and fixed to the side of the rotating body (1), and the wire feeding reel (5) is connected and fixed to the top surface of the rotating body (1). The welding torch (4) is connected and fixed to the modular two-axis moving device (2).

2. The modular three-axis rotary welding machine with easy assembly and disassembly as described in claim 1, characterized in that, The rotating body (1) includes a centering cylinder (11), a three-jaw chuck (12), a rotary locking disc quick-release seat (13), and a welding machine rotating body (14). The three-jaw chuck (12) inserts into the centering cylinder (11) and is fixedly connected to the centering cylinder (11) by the contraction and extension of the three-jaw chuck. The lower end face of the rotary locking disc quick-release seat (13) is fixedly connected to the upper end face of the three-jaw chuck (12), and the upper end face of the rotary locking disc quick-release seat (13) is fixedly connected to the lower end face of the welding machine rotating body (14).

3. The modular three-axis rotary welding machine with easy assembly and disassembly as described in claim 2, characterized in that, The rotary locking disc quick-release seat (13) includes a quick-connect female seat (131) and a quick-connect male head (132). The quick-connect female seat (131) is hollow inside, and its upper end face is provided with evenly distributed female baffles (1311). The female baffles (1311) are provided with evenly distributed female notch spaces (1312) between adjacent female baffles (1311). The end face of the quick-connect female seat (131) is provided with evenly distributed female fixing installation through holes (1313). The quick-connect male connector (132) has evenly distributed female positioning through holes (1314) on its side; the lower end face of the quick-connect male connector (132) is provided with evenly distributed male insertion plates (1321), and the adjacent male insertion plates (1321) are provided with evenly distributed male notch spaces (1322). The side face of the male insertion plates (1321) is provided with male screw positioning holes (1323), and the upper end face of the quick-connect male connector (132) is provided with evenly distributed male fixing installation through holes (1324).

4. The modular, easily detachable, three-axis rotary welding machine according to claim 3, characterized in that, The number of the female baffle (1311), female fixed mounting through hole (1313), female positioning through hole (1314), male plug plate (1321), male fixed mounting through hole (1324) and male screw positioning hole (1323) are all 3.

5. The modular three-axis rotary welding machine with easy assembly and disassembly as described in claim 2, characterized in that, The rotating body (14) of the welding machine includes a base (141), a main motor (142), a reducer (143), a moving gear (144), a core cylinder (145), an upper cover (146), a transmission bearing (147), a transmission shaft (148), fixing bolts (149), anti-detachment washers (1410), and a fixed gear (1411). The base (141) has a left mounting hole and a right mounting hole. The bottom surface of the left mounting hole is provided with a transmission bearing seat. The main motor (142) is connected to the reducer (143) for transmission. The reducer (143) is fixed in the right mounting hole. The transmission shaft of the reducer (143) passes through the right mounting hole and is connected and fixed to the moving gear (144). The core cylinder (145) covers the left mounting hole. The upper end of the core cylinder (145) is connected to the upper cover (146). 6) A transmission bearing seat is provided. The transmission bearing (147) is installed in both the transmission bearing seat and the transmission bearing seat in the base (141). The transmission bearing (147) is connected to the transmission shaft (148). The upper and lower shaft end faces of the transmission shaft (148) are provided with screw countersunk holes. The center of the fixed gear (1411) is provided with a mounting through hole. The fixed gear (1411) is fixed to the bottom surface of the base (141) corresponding to the left mounting hole and meshes with the moving gear (144) for transmission. Below the core tube (145), the fixing bolt (149) passes through the anti-detachment washer (1410), the fixed gear (1411) and is connected and fixed to the screw countersunk hole in the transmission shaft (148). Above the core tube (145), the fixing bolt (149) passes through the anti-detachment washer (1410) and is connected and fixed to the screw countersunk hole in the transmission shaft (148).

6. The modular three-axis rotary welding machine with easy assembly and disassembly as described in claim 5, characterized in that, It also includes a self-aligning bushing (1412), which abuts against the inner ring of the transmission bearing (147), with a height equal to the thickness of the anti-detachment washer (1410) and an outer diameter not greater than the center hole of the anti-detachment washer (1410). The fixing bolt (149) passes through the self-aligning bushing (1412) and the anti-detachment washer (1410) and is connected and fixed to the inner screw countersunk hole of the transmission shaft (148).

7. The modular three-axis rotary welding machine with easy assembly and disassembly as described in claim 5, characterized in that, The modular two-axis moving device (2) includes a horizontal moving module (21), a vertical moving module (22), a horizontal female socket (23), and a horizontal male socket (24). The horizontal female socket (23) is installed on the left side of the back of the horizontal moving module (21), and the horizontal male socket (24) is installed on the lower front of the vertical moving module (22). The horizontal moving module (21) is connected and fixed to the core tube (145) by inserting the vertical male socket (201) into the vertical female socket (101). The vertical moving module (22) is connected and fixed to the horizontal moving module (21) by inserting the horizontal male socket (24) into the horizontal female socket (23).

8. The modular three-axis rotary welding machine with easy assembly and disassembly as described in claim 7, characterized in that, The horizontal moving module (21) includes a horizontal base plate (211), a horizontal slide block (212), a horizontal lead screw support (213), a horizontal lead screw moving seat (214), a horizontal lead screw (215), a horizontal motor (216), a horizontal driving pulley (217), a horizontal driven pulley (218), and a horizontal belt (219). The back of the horizontal base plate (211) is provided with vertically distributed horizontal slide rails (2111). The horizontal slide block (212) is provided with a corresponding groove to the horizontal slide rails (2111). The horizontal slide block (212) is slidably connected to the horizontal slide rails (2111). A horizontal lead screw support (213) is provided on the outer sides of each end of the horizontal slide rails (2111). The horizontal lead screw support (213) is fixed to the horizontal base plate (211). The horizontal lead screw moving seat (214) is located beside the horizontal slide block (212). The horizontal slide (212) and the horizontal lead screw moving seat (214) are fixedly connected to the vertical male plug plate (201). The horizontal lead screw (215) passes through the horizontal slide (212) and the horizontal lead screw moving seat (214). The horizontal lead screw (215) and the horizontal lead screw moving seat (214) are connected by a reverse thread. The horizontal lead screw (215) is rotatably connected to the bearing installed in the horizontal lead screw support seat (213). One end of the horizontal lead screw (215) extends out of the left side of the horizontal lead screw support seat (213) and is fixedly connected to the horizontal driven pulley (218). The horizontal motor (216) is fixed to the right side of the front of the horizontal base plate (211). The output shaft of the horizontal motor (216) is connected to and fixed to the horizontal driving pulley (217). The horizontal driving pulley (217) and the horizontal driven pulley (218) are linked by the horizontal belt (219).

9. The modular three-axis rotary welding machine with easy assembly and disassembly according to claim 7, characterized in that, The vertical moving module (22) includes a vertical base plate (221), a vertical slide block (222), a vertical screw support (223), a vertical screw moving seat (224), a vertical screw (225), a vertical motor (226), a vertical drive pulley (227), a vertical driven pulley (228), and a vertical belt (229). A vertical slide rail (2211) is provided on the front of the vertical base plate (221). The vertical slide block (222) is provided with a groove corresponding to the vertical slide rail (2211). The vertical slide block (222) is slidably connected to the vertical slide rail (2211). A vertical screw support (223) is provided on the outer sides of each end of the vertical slide rail (2211). The vertical screw support (223) is fixed to the vertical base plate (221), and the vertical slide block (222) is fixed to the vertical motor (226). On the back of the horizontal male connector plate (24), the vertical lead screw moving seat (224) is fixed on the front of the horizontal male connector plate (24). The vertical lead screw (225) passes through the vertical lead screw moving seat (224) and is connected to the vertical lead screw moving seat (224) with a reverse thread. The vertical lead screw (225) is rotatably connected to the bearing installed in the vertical lead screw support seat (223). One end of the vertical lead screw (225) extends out of the vertical lead screw support seat (223) and is fixedly connected to the vertical driven pulley (228). The vertical motor (226) is fixed on the upper part of the back of the vertical base plate (221). The output shaft of the vertical motor (226) is connected to and fixedly connected to the vertical driving pulley (227). The vertical driving pulley (227) and the vertical driven pulley (228) are linked by the vertical belt (229).

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