Pipeline repair welding machine

Abstract

The utility model relates to the technical field of pipeline repair welding, in particular to a pipeline repair welding machine, which is convenient for fixing and positioning pipelines with different diameters and lengths and improves the convenience. Comprising a welding mechanism; the welding device further comprises a sliding mechanism, four sets of fixing mechanisms, a rotating mechanism, an adjusting mechanism and a position adjusting mechanism, the fixing mechanisms are installed on the sliding mechanism, the rotating mechanism is installed on the fixing mechanisms, the adjusting mechanism is installed on the sliding mechanism, the position adjusting mechanism is installed on the adjusting mechanism, and the welding mechanism is installed on the position adjusting mechanism. The position of the fixing mechanism is adjusted through the sliding mechanism, the fixing mechanism fixes pipelines with different diameters, the rotating mechanism conveniently drives the pipelines at the two ends to rotate at the same time, the adjusting mechanism can adjust the welding position of the welding mechanism, and the position adjusting mechanism assists the welding mechanism in welding the pipelines with different diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline repair welding, in particular to a pipeline repair welding machine. Background Technique

[0002] At present, pipeline repair refers to taking various technologies for damaged and leaking conveying pipelines to restore their normal use functions, and its repair includes two technologies: external anti-corrosion layer repair and internal repair. The existing external repair methods mainly include: using a clamp to stop leakage, grinding or trimming, welding repair and sliding, etc.

[0003] In the existing pipeline repair welding technology, for example, the prior art with the application number CN201921559444.3 includes a mounting seat, a welding gun, a lead screw, a nut, a guide rod, a synchronous belt, a synchronous pulley, a motor, a movable clamping block, a fixed clamping block, a gas nozzle, etc. The driving mechanism drives the movable clamping block to move towards the fixed clamping block, and the pipeline can be clamped between the movable clamping block and the fixed clamping block, and then the welding gun is started to perform welding repair on the pipeline, avoiding manual holding of the welding gun for repair.

[0004] However, in the existing technology, when welding two pipelines, it is not convenient to position the pipelines. Due to the misalignment of the two pipelines, the welding quality is reduced. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides a pipeline repair welding machine that is convenient for fixing and positioning pipelines with different diameters and lengths, and improves convenience.

[0006] A pipeline repair welding machine of the utility model includes a welding mechanism; it also includes a sliding mechanism, four groups of fixing mechanisms, a rotating mechanism, an adjusting mechanism and an adjusting position mechanism. The fixing mechanism is installed on the sliding mechanism, the rotating mechanism is installed on the fixing mechanism, the adjusting mechanism is installed on the sliding mechanism, the adjusting position mechanism is installed on the adjusting mechanism, and the welding mechanism is installed on the adjusting position mechanism. The position of the fixing mechanism is adjusted through the sliding mechanism, the fixing mechanism fixes pipelines with different diameters, the rotating mechanism is convenient for driving the pipelines at both ends to rotate simultaneously, the adjusting mechanism can adjust the welding position of the welding mechanism, and the adjusting position mechanism assists the welding mechanism to weld pipelines with different diameters; the position of the fixing mechanism is adjusted through the sliding mechanism, so that the fixing mechanism can fix pipelines with different lengths, the fixing mechanism fixes pipelines with different diameters, improving practicability, the rotating mechanism is convenient for driving the pipelines at both ends to rotate simultaneously, improving the welding quality, the adjusting mechanism can adjust the welding position of the welding mechanism, and the adjusting position mechanism assists the welding mechanism to weld pipelines with different diameters.

[0007] Preferably, the sliding mechanism includes a bottom plate, two chutes, and two sliders. The two chutes are symmetrically installed on the bottom plate, and the two sliders are slidably installed on the two chutes. By sliding the two sliders in the chutes, it is convenient to adjust the position of the fixing mechanism, so that the fixing mechanism can fix pipes of different lengths and sizes.

[0008] Preferably, the fixing mechanism includes a mounting frame, a rotating cylinder, a rotating threaded plate, a fixing plate, a bevel gear ring, a first bevel gear, and a driving shaft. Two of the four groups of fixing mechanisms are fixedly installed on the bottom plate, and the other two are installed on the two sliders. The mounting frame is installed on the slider or the bottom plate. The rotating cylinder is rotatably installed on the mounting frame. A chamber is provided inside the rotating cylinder. The rotating threaded plate is rotatably installed inside the rotating cylinder. Threads are provided on the rotating threaded plate. A chute is provided on the side wall of the rotating cylinder. The fixing plate is slidably installed in the chute. The bevel gear ring is installed on the rotating threaded plate. The first bevel gear is rotatably installed on the outer wall of the rotating cylinder through the driving shaft. The first bevel gear meshes with the bevel gear ring. The rotating threaded plate is in threaded cooperation with the fixing plate. Pass the pipe through the rotating cylinder, then rotate the driving shaft to drive the first bevel gear to rotate, and then drive the rotating threaded plate to rotate through the meshing relationship, and further drive the fixing plate to slide in the chute of the rotating cylinder through the threaded relationship, so as to fix pipes of different diameters through the fixing plate. By sliding the slider on the chute, the distance between the fixing mechanisms is adjusted, so that the two groups of fixing mechanisms on one side can fix pipes of different lengths and sizes.

[0009] Preferably, the rotating mechanism includes two toothed rings, two gears, a driving box, an adjusting shaft, a second bevel gear, a third bevel gear, and a first motor. The two toothed rings are installed on the outer walls of the rotating cylinders of the two fixed fixing mechanisms. Each of the two gears is rotatably installed on the side walls of the mounting frames of the two fixed fixing mechanisms. The gears mesh with the toothed rings. The driving box is installed on the top of the bottom plate. The adjusting shaft is rotatably installed on the adjusting shaft. The two ends of the adjusting shaft are rotatably installed on the two fixed mounting frames. The two ends of the adjusting shaft are connected to the two gears. The second bevel gear is installed on the adjusting shaft. The third bevel gear is rotatably installed on the inner wall of the driving box through a rotating shaft. The third bevel gear meshes with the second bevel gear. The first motor is installed on the outer wall of the driving box. The output end of the first motor is connected to the rotating shaft of the third bevel gear. By turning on the first motor to drive the third bevel gear to rotate, and then driving the adjusting shaft to rotate through the meshing relationship, thereby driving the two gears to rotate, and driving the two rotating cylinders to rotate through the meshing relationship, and further driving the two pipes to rotate simultaneously.

[0010] Preferably, the adjusting mechanism includes a first lead screw, an adjusting block, and a second motor. An adjusting groove is provided on the bottom plate. The first lead screw is rotatably installed in the adjusting groove of the bottom plate. The adjusting block is slidably installed in the adjusting groove. The second motor is installed on the side wall of the bottom plate. The output end of the second motor is connected to the first lead screw. The first lead screw is threadedly engaged with the adjusting block. By turning on the second motor to drive the first lead screw to rotate, the adjusting block is driven to slide in the adjusting groove of the bottom plate through the threaded relationship, thereby adjusting the position of the welding mechanism and adjusting the welding position of the welding mechanism.

[0011] Preferably, the adjusting position mechanism includes a mounting seat, a second lead screw, a slider, and a third motor. The mounting seat is installed on the adjusting block. An adjusting groove is provided on the mounting seat. The second lead screw is rotatably installed in the adjusting groove of the mounting seat. The slider is slidably installed in the adjusting groove of the mounting seat. The slider is in threaded cooperation with the second lead screw. The third motor is installed on the outer wall of the mounting seat. The output end of the third motor is connected to the second lead screw. By turning on the third motor to drive the second lead screw to rotate, and then driving the slider to slide in the adjusting groove of the mounting seat through the threaded cooperation, the position of the welding mechanism is further adjusted, so that the welding mechanism can weld pipes with different diameters.

[0012] Preferably, the welding mechanism includes a welding machine and a welding torch. The welding machine is installed on the slider, and the welding torch is installed on the welding machine. By turning on the welding machine, the welding torch welds the pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The position of the fixing mechanism is adjusted through the sliding mechanism, so that the fixing mechanism can fix pipes with different lengths. The fixing mechanism fixes pipes with different diameters, improving practicability. The rotating mechanism facilitates driving the pipes at both ends to rotate simultaneously, improving the welding quality. The adjusting mechanism can adjust the welding position of the welding mechanism, and the adjusting position mechanism assists the welding mechanism to weld pipes with different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the first axonometric structural schematic diagram of the present utility model;

[0015] Figure 2 is the second axonometric structural schematic diagram of the present utility model;

[0016] Figure 3 is the third axonometric structural schematic diagram of the present utility model;

[0017] Figure 4 is the fourth axonometric structural schematic diagram of the present utility model;

[0018] Figure 5 is the top view sectional structural schematic diagram of the present utility model;

[0019] Figure 6 It is a schematic axonometric structure diagram of the front view section of the present utility model;

[0020] Figure 7 is the Figure 6 enlarged structure diagram at position A in the present utility model;

[0021] Reference signs in the drawings: 01, sliding mechanism; 11, bottom plate; 12, chute; 13, sliding block; 02, fixing mechanism; 21, mounting bracket; 22, rotating cylinder; 23, rotating threaded plate; 24, fixing plate; 25, bevel gear ring; 26, first bevel gear; 27, driving shaft; 03, rotating mechanism; 31, gear ring; 32, gear; 33, driving box; 34, adjusting shaft; 35, second bevel gear; 36, third bevel gear; 37, first motor; 04, adjusting mechanism; 41, first lead screw; 42, adjusting block; 43, second motor; 05, adjusting position mechanism; 51, mounting seat; 52, second lead screw; 53, slider; 54, third motor; 06, welding mechanism; 61, welding machine; 62, welding torch. Specific embodiments

[0022] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0023] Embodiment 1

[0024] As Figures 1 to 7 shown, a pipeline repair welding machine includes a welding mechanism 06, and also includes a sliding mechanism 01, four groups of fixing mechanisms 02, a rotating mechanism 03, an adjusting mechanism 04 and an adjusting position mechanism 05. The fixing mechanism 02 is installed on the sliding mechanism 01, the rotating mechanism 03 is installed on the fixing mechanism 02, the adjusting mechanism 04 is installed on the sliding mechanism 01, the adjusting position mechanism 05 is installed on the adjusting mechanism 04, and the welding mechanism 06 is installed on the adjusting position mechanism 05;

[0025] The position of the fixing mechanism 02 is adjusted by the sliding mechanism 01. The fixing mechanism 02 fixes pipelines with different diameters. The rotating mechanism 03 facilitates the simultaneous rotation of the pipelines at both ends. The adjusting mechanism 04 can adjust the welding position of the welding mechanism 06. The adjusting position mechanism 05 assists the welding mechanism 06 in welding pipelines with different diameters;

[0026] The sliding mechanism 01 includes a bottom plate 11, two chutes 12 and two sliding blocks 13. The two chutes 12 are symmetrically installed on the bottom plate 11, and the two sliding blocks 13 are slidably installed on the two chutes 12;

[0027] The fixing mechanism 02 includes a mounting frame 21, a rotating cylinder 22, a rotating threaded plate 23, a fixing plate 24, a bevel gear ring 25, a first bevel gear 26 and a drive shaft 27. Two of the four groups of fixing mechanisms 02 are fixedly installed on the bottom plate 11, and the other two are installed on two sliding blocks 13. The mounting frame 21 is installed on the sliding block 13 or the bottom plate 11. The rotating cylinder 22 is rotatably installed on the mounting frame 21. A chamber is provided inside the rotating cylinder 22. The rotating threaded plate 23 is rotatably installed inside the rotating cylinder 22. Threads are provided on the rotating threaded plate 23. A sliding groove is provided on the side wall of the rotating cylinder 22. The fixing plate 24 is slidably installed in the sliding groove. The bevel gear ring 25 is installed on the rotating threaded plate 23. The first bevel gear 26 is rotatably installed on the outer wall of the rotating cylinder 22 through the drive shaft 27. The first bevel gear 26 meshes with the bevel gear ring 25. The rotating threaded plate 23 is in threaded cooperation with the fixing plate 24;

[0028] The rotating mechanism 03 includes two toothed rings 31, two gears 32, a drive box 33, an adjusting shaft 34, a second bevel gear 35, a third bevel gear 36 and a first motor 37. The two toothed rings 31 are installed on the outer walls of the rotating cylinders 22 of two fixed fixing mechanisms 02. Each of the two gears 32 is rotatably installed on the side walls of the mounting frames 21 of two fixed fixing mechanisms 02. The gears 32 mesh with the toothed rings 31. The drive box 33 is installed at the top of the bottom plate 11. The adjusting shaft 34 is rotatably installed on the adjusting shaft 34. The two ends of the adjusting shaft 34 are rotatably installed on two fixed mounting frames 21. The two ends of the adjusting shaft 34 are connected to the two gears 32. The second bevel gear 35 is installed on the adjusting shaft 34. The third bevel gear 36 is rotatably installed on the inner wall of the drive box 33 through a rotating shaft. The third bevel gear 36 meshes with the second bevel gear 35. The first motor 37 is installed on the outer wall of the drive box 33. The output end of the first motor 37 is connected to the rotating shaft of the third bevel gear 36;

[0029] Pass the pipeline through the rotating cylinder 22, then rotate the drive shaft 27 to drive the first bevel gear 26 to rotate, and then drive the rotating threaded plate 23 to rotate through the meshing relationship, and further drive the fixing plate 24 to slide in the sliding groove of the rotating cylinder 22 through the threaded relationship, so as to fix pipelines of different diameters through the fixing plate 24. Adjust the distance between the fixing mechanisms 02 by sliding the sliding block 13 on the sliding groove 12, so that the two groups of fixing mechanisms 02 on one side can fix pipelines of different lengths. By turning on the first motor 37 to drive the third bevel gear 36 to rotate, and then drive the adjusting shaft 34 to rotate through the meshing relationship, thereby driving the two gears 32 to rotate, driving the two rotating cylinders 22 to rotate through the meshing relationship, and further driving the two pipelines to rotate simultaneously. The adjusting mechanism 04 can adjust the welding position of the welding mechanism 06, and the adjusting position mechanism 05 assists the welding mechanism 06 to weld pipelines of different diameters.

[0030] Embodiment 2

[0031] As Figures 2 to 3 shown, a pipeline repair welding machine includes a welding mechanism 06, and also includes a sliding mechanism 01, four groups of fixing mechanisms 02, a rotating mechanism 03, an adjusting mechanism 04 and an adjusting position mechanism 05. The fixing mechanism 02 is installed on the sliding mechanism 01, the rotating mechanism 03 is installed on the fixing mechanism 02, the adjusting mechanism 04 is installed on the sliding mechanism 01, the adjusting position mechanism 05 is installed on the adjusting mechanism 04, and the welding mechanism 06 is installed on the adjusting position mechanism 05;

[0032] The position of the fixing mechanism 02 is adjusted by the sliding mechanism 01. The fixing mechanism 02 fixes pipes with different diameters. The rotating mechanism 03 facilitates driving the pipes at both ends to rotate simultaneously. The adjusting mechanism 04 can adjust the welding position of the welding mechanism 06. The adjusting position mechanism 05 assists the welding mechanism 06 to weld pipes with different diameters;

[0033] The adjusting mechanism 04 includes a first lead screw 41, an adjusting block 42, and a second motor 43. An adjusting groove is provided on the bottom plate 11. The first lead screw 41 is rotatably installed in the adjusting groove of the bottom plate 11. The adjusting block 42 is slidably installed in the adjusting groove. The second motor 43 is installed on the side wall of the bottom plate 11. The output end of the second motor 43 is connected to the first lead screw 41. The first lead screw 41 is threadedly engaged with the adjusting block 42;

[0034] The adjusting position mechanism 05 includes a mounting seat 51, a second lead screw 52, a slider 53 and a third motor 54. The mounting seat 51 is installed on the adjusting block 42. An adjusting groove is provided on the mounting seat 51. The second lead screw 52 is rotatably installed in the adjusting groove of the mounting seat 51. The slider 53 is slidably installed in the adjusting groove of the mounting seat 51. The slider 53 is in threaded cooperation with the second lead screw 52. The third motor 54 is installed on the outer wall of the mounting seat 51. The output end of the third motor 54 is connected to the second lead screw 52;

[0035] The welding mechanism 06 includes a welding machine 61 and a welding torch 62. The welding machine 61 is installed on the slider 53, and the welding torch 62 is installed on the welding machine 61;

[0036] The position of the fixing mechanism 02 is adjusted through the sliding mechanism 01, so that the fixing mechanism 02 can fix pipes of different lengths and sizes. The fixing mechanism 02 fixes pipes of different diameters, improving practicability. The rotating mechanism 03 facilitates driving the pipes at both ends to rotate simultaneously, improving the welding quality. By turning on the second motor 43 to drive the first lead screw 41 to rotate, the adjusting block 42 is driven to slide in the adjusting groove of the bottom plate 11 through the thread relationship, thereby adjusting the position of the welding mechanism 06 and adjusting the welding position of the welding mechanism 06. By turning on the third motor 54 to drive the second lead screw 52 to rotate, and then driving the slider 53 to slide in the adjusting groove of the mounting seat 51 through the thread fit, the position of the welding mechanism 06 is further adjusted, so that the welding mechanism 06 can weld pipes of different diameters. By turning on the welding machine 61, the welding torch 62 welds the pipe.

[0037] As Figures 1 to 7 shown, a pipe repair welding machine of the present utility model, when working, passes the pipe through the rotating cylinder 22, and then the driving shaft 27 rotates to drive the first bevel gear 26 to rotate. Then, through the meshing relationship, the rotating threaded plate 23 is driven to rotate. Further, through the thread relationship, the fixing plate 24 slides in the sliding groove of the rotating cylinder 22, so that the pipes of different diameters are fixed through the fixing plate 24. By sliding the sliding block 13 on the sliding groove 12, the distance between the fixing mechanisms 02 is adjusted, so that the two groups of fixing mechanisms 02 on one side fix pipes of different lengths. By turning on the first motor 37 to drive the third bevel gear 36 to rotate, and then driving the adjusting shaft 34 to rotate through the meshing relationship, thereby driving the two gears 32 to rotate. Through the meshing relationship, the two rotating cylinders 22 are driven to rotate, and then the two pipes are driven to rotate simultaneously. By turning on the second motor 43 to drive the first lead screw 41 to rotate, the adjusting block 42 is driven to slide in the adjusting groove of the bottom plate 11 through the thread relationship, thereby adjusting the position of the welding mechanism 06 and adjusting the welding position of the welding mechanism 06. By turning on the third motor 54 to drive the second lead screw 52 to rotate, and then driving the slider 53 to slide in the adjusting groove of the mounting seat 51 through the thread fit, the position of the welding mechanism 06 is further adjusted, so that the welding mechanism 06 can weld pipes of different diameters. By turning on the welding machine 61, the welding torch 62 welds the pipe.

[0038] The first motor 37, the second motor 43, the third motor 54 and the welding machine 61 of the present utility model are purchased on the market. Those skilled in the industry only need to install and operate according to the attached user manual, without the need for creative labor from those skilled in the art.

[0039] The main functions achieved by the present utility model are as follows: during the process of pipeline repair welding, it is convenient to fix and position pipelines with different diameters and lengths, thereby improving convenience.

[0040] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A pipeline repair welding machine, comprising a welding mechanism (06); characterized in that, It further includes a sliding mechanism (01), four groups of fixing mechanisms (02), a rotating mechanism (03), an adjusting mechanism (04) and an adjusting position mechanism (05). The fixing mechanism (02) is installed on the sliding mechanism (01), the rotating mechanism (03) is installed on the fixing mechanism (02), the adjusting mechanism (04) is installed on the sliding mechanism (01), the adjusting position mechanism (05) is installed on the adjusting mechanism (04), and the welding mechanism (06) is installed on the adjusting position mechanism (05); The sliding mechanism (01) adjusts the position of the fixing mechanism (02), the fixing mechanism (02) fixes pipes with different diameters, the rotating mechanism (03) facilitates the simultaneous rotation of the pipes at both ends, the adjusting mechanism (04) can adjust the welding position of the welding mechanism (06), and the adjusting position mechanism (05) assists the welding mechanism (06) to weld pipes with different diameters.

2. The pipe repair welding machine according to claim 1, wherein, The sliding mechanism (01) includes a bottom plate (11), two sliding grooves (12) and two sliding blocks (13). The two sliding grooves (12) are symmetrically installed on the bottom plate (11), and the two sliding blocks (13) are slidably installed on the two sliding grooves (12).

3. The pipeline repair welding machine according to claim 2, wherein, The fixing mechanism (02) includes a mounting frame (21), a rotating cylinder (22), a rotating threaded plate (23), a fixing plate (24), a bevel gear ring (25), a first bevel gear (26) and a drive shaft (27). Two of the four groups of fixing mechanisms (02) are fixedly installed on the bottom plate (11), and the other two are installed on the two sliding blocks (13). The mounting frame (21) is installed on the sliding block (13) or the bottom plate (11). The rotating cylinder (22) is rotatably installed on the mounting frame (21). A chamber is provided inside the rotating cylinder (22). The rotating threaded plate (23) is rotatably installed inside the rotating cylinder (22). Threads are provided on the rotating threaded plate (23). A sliding groove is provided on the side wall of the rotating cylinder (22). The fixing plate (24) is slidably installed in the sliding groove. The bevel gear ring (25) is installed on the rotating threaded plate (23). The first bevel gear (26) is rotatably installed on the outer wall of the rotating cylinder (22) through the drive shaft (27). The first bevel gear (26) meshes with the bevel gear ring (25). The rotating threaded plate (23) is in threaded cooperation with the fixing plate (24).

4. The pipe repair welding machine according to claim 3, characterized in that, The rotating mechanism (03) includes two toothed rings (31), two gears (32), a drive box (33), an adjustment shaft (34), a second bevel gear (35), a third bevel gear (36), and a first motor (37). The two toothed rings (31) are installed on the outer walls of the rotating cylinders (22) of the two fixed fixing mechanisms (02). Each of the two gears (32) is rotatably installed on the side walls of the mounting brackets (21) of the two fixed fixing mechanisms (02). The gears (32) are meshed with the toothed rings (31). The drive box (33) is installed at the top of the bottom plate (11). The adjustment shaft (34) is rotatably installed on the adjustment shaft (34). The two ends of the adjustment shaft (34) are rotatably installed on the two fixed mounting brackets (21). The two ends of the adjustment shaft (34) are connected to the two gears (32). The second bevel gear (35) is installed on the adjustment shaft (34). The third bevel gear (36) is rotatably installed on the inner wall of the drive box (33) through a rotating shaft. The third bevel gear (36) is meshed with the second bevel gear (35). The first motor (37) is installed on the outer wall of the drive box (33). The output end of the first motor (37) is connected to the rotating shaft of the third bevel gear (36).

5. The pipeline repair welding machine according to claim 2, wherein, The adjustment mechanism (04) includes a first lead screw (41), an adjustment block (42), and a second motor (43). An adjustment groove is provided on the bottom plate (11). The first lead screw (41) is rotatably installed in the adjustment groove of the bottom plate (11). The adjustment block (42) is slidably installed in the adjustment groove. The second motor (43) is installed on the side wall of the bottom plate (11). The output end of the second motor (43) is connected to the first lead screw (41). The first lead screw (41) is threadedly engaged with the adjustment block (42).

6. The pipeline repair welding machine according to claim 5, characterized in that, The adjustment position mechanism (05) includes a mounting seat (51), a second lead screw (52), a slider (53), and a third motor (54). The mounting seat (51) is installed on the adjustment block (42). An adjustment groove is provided on the mounting seat (51). The second lead screw (52) is rotatably installed in the adjustment groove of the mounting seat (51). The slider (53) is slidably installed in the adjustment groove of the mounting seat (51). The slider (53) is in threaded cooperation with the second lead screw (52). The third motor (54) is installed on the outer wall of the mounting seat (51). The output end of the third motor (54) is connected to the second lead screw (52).

7. A pipeline repair welding machine according to claim 6, characterized in that, The welding mechanism (06) includes a welding machine (61) and a welding torch (62). The welding machine (61) is installed on the slider (53). The welding torch (62) is installed on the welding machine (61).

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