A helical electric arc surfacing machine for helical baffle heat exchanger

Abstract

The present application relates to the technical field of welding machine tool, specifically spiral baffle heat exchanger spiral electric arc surfacing machine tool, including welding machine tool, the inside of welding machine tool is placed spiral heat exchanger that needs to be welded and fixed, the inside of welding machine tool is close to spiral heat exchanger and is provided with the mounting mechanism that installs and fixes spiral heat exchanger, the inner wall of welding machine tool is provided with the control mechanism that moves when spiral heat exchanger rotates and fits spiral heat exchanger spiral plate, the one end of control mechanism is close to spiral heat exchanger and is provided with the welding mechanism that fits spiral heat exchanger spiral plate and the junction of no center tube and welds the junction, the present application is parallel to fit in the position that spiral heat exchanger needs to be welded by welding seat, and welding ring makes electric arc welder to carry out inclined oval welding, so that spiral baffle heat exchanger spiral electric arc welding processing is more rapid and convenient, replaces manual welding, improves the welding efficiency of spiral heat exchanger.

Description

Technical Field

[0001] This invention relates to the field of welding machine tool technology, specifically to a spiral electric arc welding machine tool for spiral baffle heat exchangers. Background Technology

[0002] A spiral baffle heat exchanger is a device that uses continuous spiral baffles to allow fluid to flow in a spiral pattern for heat exchange. The baffles are crucial components for improving the efficiency of the heat exchanger. The spiral baffle heat exchanger uses idealized spiral baffles; it is a continuous spiral baffle heat exchanger without a central tube, unlike the discontinuous spiral baffle heat exchangers on the market. Spiral baffle heat exchangers offer advantages such as improved heat exchange efficiency, reduced shell-side resistance, improved vibration, and reduced fouling.

[0003] However, in existing spiral baffle heat exchangers, when welding the spiral baffle to the centerless tube, the welding joints between the multiple centerless tubes and the spiral baffle are inclined elliptical shapes. Furthermore, the multiple centerless tubes passing through the spiral baffle often make it impossible to weld at the welding joints using machinery. Most existing spiral baffle heat exchangers are usually welded manually, but manual welding of the connection between the centerless tube and the spiral baffle requires more time, resulting in low welding efficiency of the spiral baffle heat exchanger. To address this, we provide a spiral electric arc welding machine tool for spiral baffle heat exchangers. Summary of the Invention

[0004] The purpose of this invention is to provide a spiral electric arc welding machine for spiral baffle heat exchangers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A spiral electric arc welding machine tool for spiral baffle heat exchangers includes a welding machine tool. The spiral heat exchanger to be welded and fixed is placed inside the welding machine tool. An installation mechanism for installing and fixing the spiral heat exchanger is provided inside the welding machine tool near the spiral heat exchanger. A control mechanism for moving the spiral plates of the spiral heat exchanger when the spiral heat exchanger rotates is provided on the inner wall of the welding machine tool. A welding mechanism is provided at one end of the control mechanism near the spiral heat exchanger, which fits and welds the junction between the spiral plates of the spiral heat exchanger and the non-central tube.

[0007] Furthermore, the installation mechanism includes a positioning cylinder, which is rotatably mounted on the inner wall of the welding machine tool. A driven gear ring is fixedly sleeved on the outer wall of the positioning cylinder near the welding machine tool. A drive gear is meshed at the lower end of the driven gear ring. A rotary motor is fixedly installed inside the welding machine tool near the drive gear, and the drive gear is fixedly installed at the output end of the rotary motor. A moving groove is fixedly installed at the lower end of the inner wall of the welding machine tool near the spiral heat exchanger. A fixing cylinder for installing and fixing the spiral heat exchanger is slidably mounted on the upper end of the moving groove.

[0008] Furthermore, the control mechanism includes a slide rail, which is fixedly installed on the inner wall of the welding machine tool. A sliding box is slidably installed at the end of the slide rail away from the welding machine tool. A scanning and positioning device for scanning and positioning the position without a central tube in the spiral heat exchanger is fixedly installed at the side end of the sliding box. A processor is provided inside the sliding box. A data cable is fixedly installed between the processor and the scanning and positioning device. A control line for controlling the welding mechanism to start working is provided at the end of the processor near the welding mechanism.

[0009] Furthermore, a connecting wire is fixedly installed on the upper end of the processor, and a linkage telescopic rod is fixedly connected to the upper end of the connecting wire. The linkage telescopic rod is fixedly installed on the end of the sliding box away from the slide rail. A positioning block is rotatably installed on the output end of the linkage telescopic rod. A placement groove is opened on the end of the positioning block away from the linkage telescopic rod. A fitting telescopic cylinder is fixedly installed in the placement groove. A ball bearing is rotatably arranged on the end of the fitting telescopic cylinder away from the positioning block.

[0010] Furthermore, the welding mechanism includes a welding telescopic rod, which is rotatably mounted on the side of the sliding box away from the slide rail. The end of the control line away from the processor is fixedly mounted on the control end of the welding telescopic rod. A connecting seat is fixedly mounted on the end of the welding telescopic rod away from the sliding box. A connecting rod is rotatably mounted on the inner wall of the connecting seat. A welding seat is fixedly mounted on the end of the connecting rod away from the welding telescopic rod. A welding ring is slidably mounted in the welding seat.

[0011] Furthermore, a welding telescopic frame is fixedly installed on the side of the welding ring away from the welding seat, and an arc welder for welding the spiral heat exchanger is fixedly installed in the welding telescopic frame.

[0012] Furthermore, a drive box is fixedly installed at both the upper and lower ends of the welding seat, and a fixed groove that fits with the drive box is opened at both the upper and lower ends of the welding seat near the drive box. A transmission gear is rotatably installed in the fixed groove. A transmission groove is opened on the outer wall of the welding ring near the transmission gear, and an arc tooth that meshes with the transmission gear is fixedly installed in the transmission groove.

[0013] Furthermore, a drive motor is fixedly installed on the inner wall of the drive box near the transmission gear, and a drive gear is fixedly installed at the output end of the drive motor, and the drive gear is meshed with the transmission gear.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This invention, by placing the welding seat parallel to the position to be welded on the spiral heat exchanger, allows the welding ring to drive the electric arc welder to perform inclined elliptical welding, thereby making the spiral electric arc welding process of the spiral baffle heat exchanger faster and more convenient, replacing manual welding and improving the welding efficiency of the spiral heat exchanger.

[0016] 2. In this invention, the ball bearings in the placement groove of the positioning block abut against the spiral plate of the spiral heat exchanger. As the spiral heat exchanger continues to rotate, the positioning block, under the action of the rotation of the spiral plate of the spiral heat exchanger, drives the sliding box to slide on the slide rail, making the positioning of the spiral plate and the junction of the spiral heat exchanger without a center tube more convenient. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the installation mechanism in this invention;

[0019] Figure 3 This is a schematic diagram of the sliding box structure in this invention;

[0020] Figure 4 This is a schematic diagram of the positioning block in this invention;

[0021] Figure 5 This is a schematic diagram of the welded telescopic rod in this invention;

[0022] Figure 6 This is a schematic diagram of the arc welding device in this invention;

[0023] Figure 7 This is a schematic diagram of the structure of the welding ring in this invention;

[0024] Figure 8 This is a schematic diagram of the transmission gear in this invention.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Welding machine tool; 101. Spiral heat exchanger;

[0027] 2. Installation mechanism; 201. Positioning cylinder; 202. Moving groove; 203. Rotating motor; 204. Driving gear; 205. Driven gear ring; 206. Fixing cylinder; 207. Elastic rope;

[0028] 3. Control mechanism; 301. Slide rail; 302. Sliding box; 303. Linkage telescopic rod; 304. Fitting telescopic cylinder; 305. Ball bearing; 306. Positioning block;

[0029] 307. Processor; 308. Connecting cable; 309. Scanning and positioning device; 310. Data cable; 311. Control cable;

[0030] 4. Welding mechanism; 401. Welding telescopic rod; 402. Connecting seat; 403. Welding seat; 404. Welding ring; 405. Arc welder; 406. Drive box; 407. Material changer; 408. Connecting rod; 409. Protective bead; 410. Protective shaft; 411. Circular arc tooth; 412. Welding telescopic frame; 413. Electric arc; 414. Drive motor; 415. Drive gear; 416. Transmission gear. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] This invention provides a technical solution: such as Figure 1 - Figure 8As shown, a spiral baffle heat exchanger spiral electric arc welding machine tool includes a welding machine tool 1. A spiral heat exchanger 101, which needs to be welded and fixed, is placed inside the welding machine tool 1. An installation mechanism 2 for installing and fixing the spiral heat exchanger 101 is provided inside the welding machine tool 1 near the spiral heat exchanger 101. A control mechanism 3 is provided on the inner wall of the welding machine tool 1 to move the spiral plate of the spiral heat exchanger 101 when the spiral heat exchanger 101 rotates. One end of the control mechanism 3 near the spiral heat exchanger 101 is provided with a joint between the spiral plate of the spiral heat exchanger 101 and the junction without a central tube. The welding mechanism 4, which performs welding at the junction, specifically works as follows: when welding is required at the junction of the spiral plate and the centerless tube in the spiral heat exchanger 101, the mounting mechanism 2 is used to fix the spiral heat exchanger 101, the mounting mechanism 2 is started to make the spiral heat exchanger 101 start to rotate, and when the junction of the spiral plate and the centerless tube in the spiral heat exchanger 101 is detected and scanned by the control mechanism 3, the welding mechanism 4 is started to weld the junction of the spiral plate and the centerless tube in the spiral heat exchanger 101. This process is repeated sequentially, replacing manual welding and improving the welding efficiency of the spiral heat exchanger 101.

[0033] The mounting mechanism 2 includes a positioning cylinder 201, which is rotatably mounted on the inner wall of the welding machine tool 1. A driven gear ring 205 is fixedly sleeved on the outer wall of the positioning cylinder 201 near the welding machine tool 1. The lower end of the driven gear ring 205 is meshed with a drive gear 204. A rotary motor 203 is fixedly mounted inside the welding machine tool 1 near the drive gear 204. The rotary motor 203 is existing technology and will not be described in detail here. The drive gear 204 is fixedly mounted on the output end of the rotary motor 203. A moving groove 202 is fixedly mounted on the lower end of the inner wall of the welding machine tool 1 near the spiral heat exchanger 101. A fixing cylinder 206 for mounting and fixing the spiral heat exchanger 101 is slidably mounted on the upper end of the moving groove 202. An elastic rope 207 is fixedly mounted between the lower end of the fixing cylinder 206 and the welding machine tool 1. The elastic rope 207 makes the spiral heat exchanger 101 rotatably mounted on the upper end of the moving groove 202. After the spiral heat exchanger 101 is placed between the fixed cylinder 206 and the positioning cylinder 201, the elastic rope 207 pulls the fixed cylinder 206, causing the fixed cylinder 206 and the positioning cylinder 201 to press and fix the spiral heat exchanger 101, thus making the installation of the spiral heat exchanger 101 more convenient. Specifically, when it is necessary to install and drive the spiral heat exchanger 101, the spiral heat exchanger 101 is placed between the positioning cylinder 201 and the fixed cylinder 206. The tension of the elastic rope 207 is used to press and fix the spiral heat exchanger 101 between the fixed cylinder 206 and the positioning cylinder 201. After the welding of the spiral heat exchanger 101 at the required position is completed, the rotating motor 203 is started, causing the drive gear 204 to start rotating. The drive gear 204 causes the driven gear ring 205 to drive the positioning cylinder 201 to start rotating, thereby completing the adjustment of the welding position of the spiral heat exchanger 101.

[0034] The control mechanism 3 includes a slide rail 301, which is fixedly installed on the inner wall of the welding machine tool 1. A sliding box 302 is slidably installed at the end of the slide rail 301 away from the welding machine tool 1. A scanning positioning device 309 for scanning and positioning the position without a central tube in the spiral heat exchanger 101 is fixedly installed on the side end of the sliding box 302. The scanning positioning device 309 is existing technology and will not be described in detail here. A processor 307 is installed inside the sliding box 302. A data cable 310 is fixedly installed between the processor 307 and the scanning positioning device 309. A control line 311 for controlling the welding mechanism 4 to start working is provided at the end of the processor 307 near the welding mechanism 4. Specifically, when the scanning positioning device 309 scans the junction of the spiral plate and the position without a central tube in the spiral heat exchanger 101 and rotates to a suitable position in the welding mechanism 4, the rotating motor 203 stops working. The welding mechanism 4 is started by the processor 307 to weld the junction of the spiral plate and the position without a central tube in the spiral heat exchanger 101, making the welding faster and more convenient.

[0035] A connecting wire 308 is fixedly installed on the upper end of the processor 307. A linkage telescopic rod 303 is fixedly connected to the upper end of the connecting wire 308. The linkage telescopic rod 303 is fixedly installed on the end of the sliding box 302 away from the slide rail 301. A positioning block 306 is rotatably installed on the output end of the linkage telescopic rod 303. A placement groove is opened on the end of the positioning block 306 away from the linkage telescopic rod 303. A fitting telescopic cylinder 304 is fixedly installed in the placement groove. A ball bearing 305 is rolled on the end of the fitting telescopic cylinder 304 away from the positioning block 306. Specifically, when it is necessary to adjust the spiral in the spiral heat exchanger 101... When welding is performed at the junction of the plate and the centerless tube, the processor 307 activates the linkage telescopic rod 303 through the connecting line 308, causing the linkage telescopic rod 303 to extend. The ball bearings 305 in the placement groove of the positioning block 306 abut against the spiral plate of the spiral heat exchanger 101. As the spiral heat exchanger 101 continues to rotate, the positioning block 306 begins to move under the rotation of the spiral plate of the spiral heat exchanger 101, causing the sliding box 302 to slide on the slide rail 301. This makes the positioning of the spiral plate and the junction of the centerless tube in the spiral heat exchanger 101 more convenient.

[0036] The welding mechanism 4 includes a welding telescopic rod 401, which is rotatably mounted on the side of the sliding box 302 away from the slide rail 301. The end of the control line 311 away from the processor 307 is fixedly mounted on the control end of the welding telescopic rod 401. The processor 307 controls the extension of the welding telescopic rod 401. A connecting seat 402 is fixedly mounted on the end of the welding telescopic rod 401 away from the sliding box 302. A connecting rod 408 is rotatably mounted on the inner wall of the connecting seat 402. A welding seat 403 is fixedly mounted on the end of the connecting rod 408 away from the welding telescopic rod 401. The welding seat 403 is configured as an arc-shaped groove. A welding ring 404 is slidably mounted in the welding seat 403. An electrically conductive arc 413 is fixedly mounted on the inner wall of the welding seat 403. The welding ring 404 is provided with a rotating groove that matches the energized arc 413, so that the welding ring 404 can remain energized during rotation. The welding ring 404 is set as an arc ring that matches the welding seat 403, and both the arc groove and the arc ring are circular rings with a gap removed to allow entry into the center of the circular ring. Protective shafts 410 and protective beads 409 are symmetrically installed on the outer wall of the welding seat 403 away from the welding ring 404. The protective shafts 410 and protective beads 409 prevent the welding telescopic rod 401 from extending and pushing the welding seat 403 to move and abut against the spiral plate provided on the spiral heat exchanger 101. When the welding telescopic rod 401 extends and pushes the welding seat 403 to move and abut against the spiral plate provided on the spiral heat exchanger 101, the protective shaft 410 will come into contact with the spiral plate and start to rotate, thereby preventing the welding seat 403 from directly contacting the spiral plate provided on the spiral heat exchanger 101 and causing damage.

[0037] A welding telescopic frame 412 is fixedly installed on the side of the welding ring 404 away from the welding seat 403. An arc welder 405 for welding the spiral heat exchanger 101 is fixedly installed in the welding telescopic frame 412. The welding telescopic frame 412 is a telescopic frame in the prior art, which allows the arc welder 405 to fit tightly against the position of the spiral heat exchanger 101 to perform inclined elliptical welding when welding the spiral heat exchanger 101. An automatic feeding material changer 407 is fixedly installed on the side of the connecting seat 402 near the arc welder 405. The material changer 407 is in the prior art. When the welding ring 404 no longer drives the arc welder 405 to rotate and the welding telescopic rod 401 retracts, the material changer 407 automatically replenishes and replaces the welding rod in the arc welder 405.

[0038] Both the upper and lower ends of the welding base 403 are fixedly mounted with drive boxes 406, and both the upper and lower ends of the welding base 403 near the drive boxes 406 are provided with fixed grooves that fit with the drive boxes 406. A transmission gear 416 is rotatably mounted in the fixed groove. A transmission groove is provided on the outer wall of the welding ring 404 near the transmission gear 416, and an arc tooth 411 that meshes with the transmission gear 416 is fixedly mounted in the transmission groove. When the transmission gear 416 starts to rotate, the transmission gear 416 pushes the arc tooth 411 to start rotating, so that the arc tooth 411 drives the welding ring 404 to rotate in a ring in the welding base 403, so that the arc welder 405 surrounds the spiral heat exchanger 101 where welding is required, thereby making the welding faster.

[0039] A drive motor 414 is fixedly installed on the inner wall of the drive box 406 near the transmission gear 416. A drive gear 415 is fixedly installed at the output end of the drive motor 414, and the drive gear 415 is meshed with the transmission gear 416. When it is necessary to control the arc welder 405 to start rotating, the drive motor 414 is started, the drive gear 415 starts to rotate, and the drive gear 415 drives the arc tooth 411 to start rotating through the transmission gear 416, so that the arc welder 405 surrounds the spiral heat exchanger 101 where welding is required, thereby making the processing faster and more convenient.

[0040] It should be noted that the proportions of the device parts in the picture differ from those shown, and the image structure is only for reference regarding the structural operating principle.

[0041] It should be noted that the diameter ratio of the drive gear 415 to the transmission gear 416 is 1:3, and at the same time, the diameter of the arc tooth 411 is five times the diameter of the transmission gear 416. When the drive motor 414 is working, the drive gear 415 starts to rotate, and the arc tooth 411 starts to rotate slowly, thereby making the welding more stable.

[0042] Working principle: When welding is required at the junction of the spiral plate and the centerless tube in the spiral heat exchanger 101, the spiral heat exchanger 101 is placed between the positioning cylinder 201 and the fixed cylinder 206. The elastic rope 207 pulls the fixed cylinder 206, causing the fixed cylinder 206 and the positioning cylinder 201 to press against the spiral heat exchanger 101, thereby fixing the spiral heat exchanger 101 in place. The processor 307 activates the linkage telescopic rod 303 through the connecting line 308, causing the linkage telescopic rod 303 to extend. The ball bearings 305 in the placement groove of the positioning block 306 abut against the spiral plate of the spiral heat exchanger 101, so that as the spiral heat exchanger 101 continues to rotate, the positioning block 306 begins to move under the action of the rotation of the spiral plate of the spiral heat exchanger 101, driving the sliding box 302 to slide on the slide rail 301. The scanning positioning instrument 309 detects the spiral of the spiral heat exchanger 101. After the junction of the plate and the centerless tube rotates to the position to be welded, the processor 307 starts the welding telescopic rod 401 through the control line 311, causing the welding telescopic rod 401 to start moving. The welding telescopic rod 401 pushes the welding seat 403 to start moving. When the protective shaft 410 set on the welding seat 403 contacts the spiral plate of the spiral heat exchanger 101, the welding seat 403 and the welding telescopic rod 401 rotate parallel to the junction of the spiral plate of the spiral heat exchanger 101 and the centerless tube to the position to be welded. After the welding seat 403 moves to the appropriate position, the drive motor 414 is started, and the drive gear 415 starts to rotate. The drive gear 415 drives the arc tooth 411 to start rotating through the transmission gear 416, so that the arc welder 405 circles the spiral heat exchanger 101 to be welded, thus making the spiral arc welding process of the spiral baffle heat exchanger faster and more convenient.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spiral electric arc welding machine tool for spiral baffle heat exchangers, comprising a welding machine tool (1), characterized in that: The welding machine tool (1) contains a spiral heat exchanger (101) that needs to be welded and fixed. The welding machine tool (1) is equipped with an installation mechanism (2) for installing and fixing the spiral heat exchanger (101) inside. The welding machine tool (1) is equipped with a control mechanism (3) for moving the spiral plate of the spiral heat exchanger (101) when the spiral heat exchanger (101) rotates. The control mechanism (3) is equipped with a welding mechanism (4) for welding the junction between the spiral plate of the spiral heat exchanger (101) and the non-central tube at one end near the spiral heat exchanger (101). The control mechanism (3) includes a slide rail (301), and the slide rail (301) is fixedly installed on the inner wall of the welding machine tool (1). A sliding box (302) is slidably installed at one end of the slide rail (301) away from the welding machine tool (1). A scanning positioning instrument (309) for scanning and positioning the position without a central tube in the spiral heat exchanger (101) is fixedly installed at the side end of the sliding box (302). A processor (307) is provided inside the sliding box (302). The welding mechanism (4) includes a welding telescopic rod (401), a connecting seat (402) is fixedly installed at one end of the welding telescopic rod (401) away from the sliding box (302), a connecting rod (408) is rotatably installed on the inner wall of the connecting seat (402), a welding seat (403) is fixedly installed at one end of the connecting rod (408) away from the welding telescopic rod (401), and a welding ring (404) is slidably installed in the welding seat (403). A welding telescopic frame (412) is fixedly installed on the side of the welding ring (404) away from the welding seat (403), and an arc welder (405) for welding the spiral heat exchanger (101) is fixedly installed in the welding telescopic frame (412).

2. The spiral baffle heat exchanger spiral electric arc welding machine tool according to claim 1, characterized in that: The installation mechanism (2) includes a positioning cylinder (201), which is rotatably mounted on the inner wall of the welding machine tool (1). A driven gear ring (205) is fixedly sleeved on the outer wall of the positioning cylinder (201) near the welding machine tool (1). The lower end of the driven gear ring (205) is meshed with a drive gear (204). A rotary motor (203) is fixedly installed inside the welding machine tool (1) near the drive gear (204). The drive gear (204) is fixedly installed at the output end of the rotary motor (203). A moving groove (202) is fixedly installed on the lower end of the inner wall of the welding machine tool (1) near the spiral heat exchanger (101). A fixing cylinder (206) for installing and fixing the spiral heat exchanger (101) is slidably installed on the upper end of the moving groove (202).

3. The spiral baffle heat exchanger spiral electric arc welding machine tool according to claim 1, characterized in that: A data cable (310) is fixedly installed between the processor (307) and the scanning and positioning device (309). A control line (311) for controlling the welding mechanism (4) to start working is provided at one end of the processor (307) near the welding mechanism (4).

4. The spiral baffle heat exchanger spiral electric arc welding machine tool according to claim 3, characterized in that: A connecting line (308) is fixedly installed on the upper end of the processor (307). A linkage telescopic rod (303) is fixedly connected to the upper end of the connecting line (308). The linkage telescopic rod (303) is fixedly installed on the end of the sliding box (302) away from the slide rail (301). A positioning block (306) is rotatably installed on the output end of the linkage telescopic rod (303). A placement groove is opened on the end of the positioning block (306) away from the linkage telescopic rod (303). A fitting telescopic cylinder (304) is fixedly installed in the placement groove. A ball bearing (305) is rotatably arranged on the end of the fitting telescopic cylinder (304) away from the positioning block (306).

5. The spiral baffle heat exchanger spiral electric arc welding machine tool according to claim 1, characterized in that: The upper and lower ends of the welding seat (403) are fixedly installed with drive boxes (406), and the upper and lower ends of the welding seat (403) near the drive box (406) are provided with fixed grooves that fit with the drive box (406). A transmission gear (416) is rotatably installed in the fixed groove. A transmission groove is provided on the outer wall of the welding ring (404) near the transmission gear (416), and an arc tooth (411) that meshes with the transmission gear (416) is fixedly installed in the transmission groove.

6. The spiral baffle heat exchanger spiral electric arc welding machine tool according to claim 5, characterized in that: A drive motor (414) is fixedly installed on the inner wall of the drive box (406) near the transmission gear (416). A drive gear (415) is fixedly installed at the output end of the drive motor (414), and the drive gear (415) meshes with the transmission gear (416).

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