A fastening production flame cutting device and production process

Abstract

The present invention relates to the technical field related to flame cutting devices, and specifically to a fastening production flame cutting device and a production process. The fastening production flame cutting device comprises a mounting bracket, an adjusting bracket, a flame cutting head, a driving motor and an adjusting structure. The mounting bracket is a half-opening frame structure, and an active roller groove is provided at the upper side end of the mounting bracket. An active roller is rotatably installed in the active roller groove through a primary rotating shaft. The fastening production flame cutting device composed of the mounting bracket, the adjusting bracket, the flame cutting head, the driving motor and the adjusting structure is provided, so that the cutting device is mounted on a pipe to be cut, and the driving action of the driving motor allows the cutting device to perform self-rotation motion on the pipe to be cut, thereby completing the cutting process of the pipe to be cut, and the device can form a stable clamp for pipes of various sizes, thereby improving the versatility of the device in actual application.

Description

Technical Field

[0001] The present invention relates to the technical field of flame cutting devices, and particularly to a fastening production flame cutting device and a production process. Background Art

[0002] Flame cutting is a commonly used method for rough machining of steel plates. Flame cutting, also known as gas cutting, was traditionally carried out using acetylene gas, later propane, and now natural gas cutting has emerged. Due to the characteristics of abundant reserves, low price, and pollution-free of natural gas, it has become the first choice for flame cutting. Generally, natural gas additives are added to natural gas flame cutting to generate a new type of flame cutting gas. Using this gas for flame cutting can make the cutting effect better, improve the cutting efficiency, and reduce the cutting cost.

[0003] The existing Chinese patent document with the publication number CN115770923B discloses an alloy flame cutting processing device. Its solution includes a positioning collar, which is sleeved on the opening part at the head end to be processed of the alloy pipe to be cut. Six short axes with circumferential support are welded forward on the positioning collar to form a track ring, and two U-shaped convex support frames are symmetrically welded on the positioning collar in the up and down direction; Two arc-shaped clamping plates are symmetrically and slidably installed on the two convex support frames. The two arc-shaped clamping plates are used to clamp and fix the alloy pipe to be processed, and two vertical support sliding shafts are symmetrically welded on the two arc-shaped clamping plates. The two vertical support sliding shafts are inserted and matched with the ring wall of the positioning collar; A first threaded top shaft is rotatably installed in the middle section of each of the two arc-shaped clamping plates, and the two first threaded top shafts are screwed through and matched with the two convex support frames; A T-shaped cross-section annular chute is opened on the inner ring of the track ring, and a sliding ring is rotatably installed in the annular chute. The cross-section of the sliding ring is in a T-shaped structure, and an installation support plate and a support frame are welded corresponding to each other in the up and down direction on the sliding ring. The support frame is in a U-shaped structure, and a slag barrel is slidably installed at the head end of the support frame, and a gun head sleeve is slidably installed on the installation support plate. The bottom of the gun head sleeve is in a conical structure, and the gun head of the flame gas cutting gun is inserted and matched with the gun head sleeve; The slag barrel and the gun head sleeve are coaxial and are spaced apart and facing each other up and down, and the gun head sleeve is close to the circumferential outer wall of the alloy pipe, and the slag barrel is inserted into the interior of the alloy pipe.

[0004] Although it can complete the cutting of the pipe, it is large in size and not convenient to carry outside, resulting in relatively large application defects during outdoor operations. Moreover, when cutting pipes of different sizes, its adaptability is poor, and it is not convenient to stably position on pipes of multiple sizes. Therefore, the present invention proposes a fastening production flame cutting device and a production process to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a fastening production flame cutting device and a production process to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a fastening production flame cutting device, the fastening production flame cutting device comprising:

[0007] The mounting bracket is a half-open frame structure, and an active roller groove is provided at the upper side end of the mounting bracket, and an active roller is rotatably installed in the active roller groove through a primary rotating shaft, and linear guide rails are fixedly installed on the front and rear side walls of the vertical frame rod of the mounting bracket, and a threaded hole is provided on the lower side horizontal frame rod of the mounting bracket;

[0008] An adjusting bracket, wherein a guide rail groove is provided on the adjusting bracket, wherein the adjusting bracket is movably mounted on the linear guide rail through the guide rail groove, wherein a driven roller groove is provided on the upper surface of the adjusting bracket, wherein a driven roller is rotatably mounted in the driven roller groove through a secondary rotating shaft;

[0009] A flame cutting blade head, wherein the flame cutting blade head is fixedly mounted on the mounting bracket, and the cutting end of the flame cutting blade head is arranged toward the pipe to be cut;

[0010] A driving motor, wherein the driving motor is fixed to the mounting bracket via a motor bracket, and the driving motor is used to drive the active roller;

[0011] The adjusting structure is installed at the threaded hole position on the mounting bracket, and the adjusting structure is used to adjust and position the adjusting bracket.

[0012] Preferably, a group of driven rollers are symmetrically arranged, the axis line of the driving roller is located on the symmetry plane of the driven rollers on both sides, a transmission gear is fixedly installed on the output shaft of the driving motor, a driven gear is fixedly installed on the end of the primary rotating shaft, and the transmission gear is meshed with the driven gear.

[0013] Preferably, a bearing groove is formed on the lower end surface of the adjustment bracket, and a ball bearing is fixedly installed in the bearing groove. The adjustment structure is composed of a threaded rod, a mounting shaft and a turning handle. The threaded rod, the mounting shaft and the turning handle are integrally formed. The threaded rod is screwed into a threaded hole on the mounting bracket. The diameter of the mounting shaft is smaller than the diameter of the threaded rod, and the mounting shaft is fixedly connected to the inner ring of the ball bearing.

[0014] Preferably, a positioning plate is installed on the mounting shaft, a self-locking groove is provided on the side of the positioning plate, a guide plate is fixedly welded to the lower surface of the adjusting bracket, a group of guide plates are symmetrically arranged, and guide seats are fixedly welded between the guide plates, a guide rod hole is provided on the guide seat, and a self-locking structure is installed on the guide seat, and the self-locking structure is composed of a guide rod, a movable block, a self-locking protrusion, a support spring and a pull rod combination.

[0015] Preferably, the guide rod, movable block, self-locking protrusion and pull rod are integrally formed, the support spring is sleeved and installed on the guide rod, and the guide rod is movably installed in the guide rod hole on the guide seat, the movable block is a rectangular block, and the movable block is movably arranged between the guide plates, and the spacing value between the guide plates on both sides coincides with the width value of the movable block, the self-locking groove is a U-shaped groove, and the self-locking groove is provided with a circle around the side of the positioning plate, the cross-sectional size of the self-locking protrusion coincides with the cross-sectional size of the self-locking groove, and when the support spring is in a reset state, the self-locking protrusion is embedded in the self-locking groove.

[0016] Preferably, the pull rod is a screw rod, and a limiting cap is screwed and installed on the pull rod. When the limiting cap is screwed to the root of the pull rod and the limiting cap is set against the side of the adjustment bracket, the self-locking protrusion is completely disengaged from the self-locking groove.

[0017] Preferably, the diameter of the mounting shaft is smaller than the diameter of the threaded rod, and a guide groove is provided on the side of the mounting shaft, and a guide block is integrally formed on the side wall of the center hole of the positioning plate, the guide block is arranged corresponding to the guide groove, and the guide block is movably installed in the guide groove, when the mounting shaft is actually installed, the length of the guide groove exposed outside the ball bearing is greater than the thickness of the positioning plate, and when the guide block moves in the guide groove, there is always an overlapping area between the self-locking protrusion and the self-locking groove.

[0018] Preferably, the active roller and the driven roller are both composed of a roller body and an anti-skid layer, the roller body is cast from hard metal, the anti-skid layer is a flexible rubber layer, and the anti-skid layer is fixed to the outer surface of the roller body, and when the device is actually used, the active roller and the driven roller are both in contact with the side wall of the pipe to be cut, and the anti-skid layer is in a compressed state, and the friction between the anti-skid layer and the pipe to be cut is greater than the torque required for the device to rotate on the pipe to be cut.

[0019] Preferably, a snap-fit ​​groove is provided on the edge of the roller body, and a snap-fit ​​block is integrally formed on the inner side edge of the anti-slip layer. When the anti-slip layer is actually installed, the snap-fit ​​block is embedded in the snap-fit ​​groove. An anti-slip groove is provided on the outer wall of the anti-slip layer. The anti-slip groove is a hemispherical groove, and multiple groups of anti-slip grooves are evenly provided on the outer wall of the anti-slip layer.

[0020] A production process of a fastening production flame cutting device, the production process of the fastening production flame cutting device is realized by the fastening production flame cutting device, and the production process of the fastening production flame cutting device comprises:

[0021] The adjustment process of the adjustment bracket is to first lift the pipe to be cut by the lifting device, and then adjust the position of the adjustment bracket by the adjustment structure, so that the pipe to be cut is clamped by the active roller and the driven roller, so that the cutting device can be installed on the pipe to be cut;

[0022] During the cutting process, the driving motor is started to drive the active roller to move, so that the cutting device rotates around the pipe to be cut, and the flame cutting head cuts the pipe to be cut during the rotation of the cutting device.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. A fastening production flame cutting device composed of a mounting bracket, an adjustment bracket, a flame cutting blade, a driving motor and an adjustment structure is provided, so that the cutting device is mounted on the pipe to be cut, and the driving motor is used to drive the cutting device to rotate on the pipe to be cut, so that the cutting process is completed on the pipe to be cut, and the device can form a stable clamping for pipes of various sizes, thereby improving the versatility of the device in practical application;

[0025] 2. A positioning plate is arranged on the mounting shaft, and a self-locking groove is opened on the side of the positioning plate. A self-locking structure composed of a guide rod, a movable block, a self-locking protrusion, a support spring and a pull rod is arranged, so that the self-locking protrusion is embedded in the self-locking groove through the supporting effect of the support spring to form a locking effect, thereby preventing the adjustment structure from loosening during the operation of the cutting device, thereby affecting the normal operation of the cutting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0028] Figure 3 It is a schematic diagram of the adjustment structure of the present invention;

[0029] Figure 4 for Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0030] Figure 5 This is a schematic diagram of the structure of the adjusting bracket of the present invention;

[0031] Figure 6 To adjust the side view of the bracket;

[0032] Figure 7 for Figure 6 A magnified schematic diagram of the structure at C in the middle;

[0033] Figure 8 It is a schematic diagram of the self-locking structure of the present invention;

[0034] Fig. 9 This is a schematic diagram of the positioning plate structure of the present invention;

[0035] Fig.10 It is a schematic diagram of the limiting cap structure of the present invention;

[0036] Fig.11 This is a schematic diagram of the active roller structure of the present invention;

[0037] Fig.12 for Fig.11 A magnified schematic diagram of the structure at D in the middle;

[0038] Fig.13 This is a practical effect diagram of the present invention;

[0039] Fig.14 for Fig.13 Enlarged schematic diagram of the structure at point E in the middle.

[0040] In the figure: mounting bracket 1, adjusting bracket 2, flame cutting cutter head 3, driving motor 4, adjusting structure 5, primary rotating shaft 6, driving roller 7, driven gear 8, motor bracket 9, transmission gear 10, linear guide rail 11, guide rail groove 12, driven roller groove 13, secondary rotating shaft 14, driven roller 15, ball bearing 16, threaded rod 17, mounting shaft 18, rotating handle 19, pipe to be cut 20, roller body 21, anti-skid layer 22, engaging block 23, anti-skid groove 24, guide plate 25, guide seat 26, guide rod hole 27, self-locking structure 28, guide rod 29, movable block 30, self-locking protrusion 31, support spring 32, pull rod 33, positioning plate 34, self-locking groove 35, guide groove 36, guide block 37, limiting cap 38. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-14 The present invention provides the following three preferred embodiments:

[0043] Embodiment 1

[0044] A fastening production flame cutting device, the fastening production flame cutting device comprises a mounting bracket 1, an adjusting bracket 2, a flame cutting blade 3, a driving motor 4 and an adjusting structure 5, the mounting bracket 1 is a half-open frame structure, and an active roller groove is provided at the upper side end of the mounting bracket 1, and an active roller 7 is rotatably installed in the active roller groove through a primary rotating shaft 6, a linear guide rail 11 is fixedly installed on the front and rear side walls of the vertical frame rod of the mounting bracket 1, and a threaded hole is provided on the lower side horizontal frame rod of the mounting bracket 1, a guide rail groove 12 is provided on the adjusting bracket 2, and the adjusting bracket 2 is movably installed on the linear guide rail 11 through the guide rail groove 12, and a driven roller groove 13 is provided on the upper surface of the adjusting bracket 2, and a driven roller groove 13 is provided in the driven roller groove 13 through a secondary rotating shaft 6. A driven roller 15 is rotatably installed on the shaft 14, the flame cutting head 3 is fixedly installed on the mounting bracket 1, and the cutting end of the flame cutting head 3 is arranged toward the pipe 20 to be cut, the driving motor 4 is fixed on the mounting bracket 1 through the motor bracket 9, and the driving motor 4 is used to drive the active roller 7, the adjusting structure 5 is installed at the threaded hole position on the mounting bracket 1, and the adjusting structure 5 is used to adjust and position the adjusting bracket 2, a group of driven rollers 15 are symmetrically arranged, the axis line of the active roller 7 is located on the symmetry plane of the driven rollers 15 on both sides, a transmission gear 10 is fixedly installed on the output shaft of the driving motor 4, and a driven gear 8 is fixedly installed on the end of the primary rotating shaft 6, and the transmission gear 10 is meshed with the driven gear 8.

[0045] A bearing groove is provided on the lower end surface of the adjusting bracket 2, in which a ball bearing 16 is fixedly installed. The adjusting structure 5 is composed of a threaded rod 17, a mounting shaft 18 and a rotating handle 19. The threaded rod 17, the mounting shaft 18 and the rotating handle 19 are integrally formed. The threaded rod 17 is screwed into the threaded hole on the mounting bracket 1. The diameter of the mounting shaft 18 is smaller than the diameter of the threaded rod 17, and the mounting shaft 18 is fixedly connected to the inner ring of the ball bearing 16. A fastening flame cutting device composed of the mounting bracket 1, the adjusting bracket 2, the flame cutting head 3, the driving motor 4 and the adjusting structure 5 is provided, so that the cutting device is installed on the pipe 20 to be cut, and the driving action of the driving motor 4 allows the cutting device to perform self-rotation on the pipe 20 to be cut, so that the cutting process of the pipe 20 to be cut is completed, and the device can form a stable clamp for pipes of various sizes, thereby improving the versatility of the actual application of the device.

[0046] Embodiment 2

[0047] See also Figure 1-4 and Figure 6-10On the basis of the first embodiment, a positioning plate 34 is installed on the mounting shaft 18, and a self-locking groove 35 is provided on the side of the positioning plate 34. A guide plate 25 is fixedly welded to the lower surface of the adjustment bracket 2. A group of guide plates 25 are symmetrically arranged, and a guide seat 26 is fixedly welded between the guide plates 25. A guide rod hole 27 is provided on the guide seat 26. A self-locking structure 28 is installed on the guide seat 26. The self-locking structure 28 is composed of a guide rod 29, a movable block 30, a self-locking protrusion 31, a support spring 32 and a pull rod 33. The guide rod 29, the movable block 30, the self-locking protrusion 31 and the pull rod 33 are integrally formed. The support spring 32 is sleeved and installed on the guide rod 29. The guide rod 29 is movably installed in the guide rod hole 27 on the guide seat 26. The movable block 30 is a rectangular block, and the movable block 30 is movably arranged between the guide plates 25, and the guide plates 25 on both sides The spacing value between them is consistent with the width value of the movable block 30, the self-locking groove 35 is a U-shaped groove, and the self-locking groove 35 is arranged in a circle around the side of the positioning plate 34, and the cross-sectional size of the self-locking protrusion 31 is consistent with the cross-sectional size of the self-locking groove 35. When the support spring 32 is in the reset state, the self-locking protrusion 31 is embedded in the self-locking groove 35. By arranging the positioning plate 34 on the mounting shaft 18, and opening the self-locking groove 35 on the side of the positioning plate 34, and by arranging a self-locking structure 28 composed of a guide rod 29, a movable block 30, a self-locking protrusion 31, a support spring 32 and a pull rod 33, the self-locking protrusion 31 is embedded in the self-locking groove 35 through the supporting effect of the support spring 32 to form a locking effect, thereby preventing the adjustment structure 5 from loosening during the operation of the cutting device, thereby affecting the normal operation of the cutting device.

[0048] The pull rod 33 is a screw rod, and a limiting cap 38 is screwed and installed on the pull rod 33. When the limiting cap 38 is screwed to the root of the pull rod 33 and the limiting cap 38 is set against the side of the adjustment bracket 2, the self-locking protrusion 31 is completely disengaged from the self-locking groove 35, which makes it easy for the self-locking protrusion 31 to disengage from the self-locking groove 35, thereby facilitating the adjustment process of the staff.

[0049] The diameter of the mounting shaft 18 is smaller than the diameter of the threaded rod 17, and a guide groove 36 is provided on the side of the mounting shaft 18. A guide block 37 is integrally formed on the side wall of the center hole of the positioning plate 34. The guide block 37 is arranged corresponding to the guide groove 36, and the guide block 37 is movably installed in the guide groove 36. When the mounting shaft 18 is actually installed, the length of the guide groove 36 exposed outside the ball bearing 16 is greater than the thickness of the positioning plate 34, and when the guide block 37 moves in the guide groove 36, there is always an overlapping area between the self-locking protrusion 31 and the self-locking groove 35, which facilitates the positioning and disassembly of the positioning plate 34, thereby improving the convenience of disassembly and assembly of the overall structure.

[0050] Embodiment 3

[0051] See also Figure 11-12 On the basis of the second embodiment, the active roller 7 and the driven roller 15 are both composed of a roller body 21 and an anti-skid layer 22. The roller body 21 is cast from hard metal, and the anti-skid layer 22 is a flexible rubber layer, and the anti-skid layer 22 is fixed to the outer surface of the roller body 21. When the device is actually used, the active roller 7 and the driven roller 15 are both in contact with the side wall of the pipe 20 to be cut, and the anti-skid layer 22 is in a compressed state, and the friction between the anti-skid layer 22 and the pipe 20 to be cut is greater than the torque required for the device to rotate on the pipe 20 to be cut, thereby improving the friction between the active roller 7, the driven roller 15 and the pipe 20 to be cut.

[0052] A snap-fit ​​groove is provided on the edge of the roller body 21, and a snap-fit ​​block 23 is integrally formed on the inner side of the anti-skid layer 22. When the anti-skid layer 22 is actually installed, the snap-fit ​​block 23 is embedded in the snap-fit ​​groove. The snap-fit ​​block 23 and the snap-fit ​​groove are arranged to improve the stability of the anti-skid layer 22 on the roller body 21. An anti-skid groove 24 is provided on the outer wall of the anti-skid layer 22. The anti-skid groove 24 is a hemispherical notch, and multiple groups of anti-skid grooves 24 are evenly provided on the outer wall of the anti-skid layer 22, thereby further improving the friction between the active roller 7, the driven roller 15 and the pipe 20 to be cut.

[0053] A production process of a fastening production flame cutting device, the production process of the fastening production flame cutting device is realized by the fastening production flame cutting device, and the production process of the fastening production flame cutting device includes:

[0054] During the adjustment process of the adjusting bracket, the pipe 20 to be cut is first lifted by the lifting device, and then the position of the adjusting bracket 2 is adjusted by the adjusting structure 5, so that the pipe 20 to be cut is clamped by the driving roller 7 and the driven roller 15, so that the cutting device is installed on the pipe 20 to be cut;

[0055] During the cutting process, the driving motor 4 is started to drive the active roller 7 to move, so that the cutting device rotates around the pipe 20 to be cut, and the flame cutting head 3 cuts the pipe 20 to be cut during the rotation of the cutting device.

[0056] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A fastening production flame cutting device, characterized in that: The fastening production flame cutting device comprises: A mounting bracket (1), the mounting bracket (1) being a half-open frame structure, and an active roller groove is provided at the upper side end of the mounting bracket (1), an active roller (7) is rotatably installed in the active roller groove via a primary rotating shaft (6), linear guide rails (11) are fixedly installed on the front and rear side walls of the vertical frame rod of the mounting bracket (1), and a threaded hole is provided on the lower side transverse frame rod of the mounting bracket (1); An adjusting bracket (2), wherein a guide rail groove (12) is formed on the adjusting bracket (2), and the adjusting bracket (2) is movably mounted on the linear guide rail (11) via the guide rail groove (12); a driven roller groove (13) is formed on the upper surface of the adjusting bracket (2), and a driven roller (15) is rotatably mounted in the driven roller groove (13) via a secondary rotating shaft (14); A flame cutting blade head (3), wherein the flame cutting blade head (3) is fixedly mounted on the mounting bracket (1), and the cutting end of the flame cutting blade head (3) is arranged toward the pipe (20) to be cut; A drive motor (4), wherein the drive motor (4) is fixed to the mounting bracket (1) via a motor bracket (9), and the drive motor (4) is used to drive the active roller (7); An adjustment structure (5), the adjustment structure (5) being mounted at a threaded hole on the mounting bracket (1), and the adjustment structure (5) being used to adjust and position the adjustment bracket (2); A group of driven rollers (15) are symmetrically arranged, the axis of the driving roller (7) is located on the symmetry plane of the driven rollers (15) on both sides, a transmission gear (10) is fixedly mounted on the output shaft of the driving motor (4), a driven gear (8) is fixedly mounted on the end of the primary rotating shaft (6), and the transmission gear (10) is meshed with the driven gear (8).

2. A fastening production flame cutting device according to claim 1, characterized in that: The lower end surface of the adjustment bracket (2) is provided with a bearing groove, in which a ball bearing (16) is fixedly installed. The adjustment structure (5) is composed of a threaded rod (17), a mounting shaft (18) and a rotating handle (19). The threaded rod (17), the mounting shaft (18) and the rotating handle (19) are integrally formed. The threaded rod (17) is screwed into a threaded hole on the mounting bracket (1). The diameter of the mounting shaft (18) is smaller than the diameter of the threaded rod (17), and the mounting shaft (18) is fixedly connected to the inner ring of the ball bearing (16).

3. A fastening production flame cutting device according to claim 2, characterized in that: A positioning plate (34) is mounted on the mounting shaft (18), a self-locking groove (35) is provided on the side of the positioning plate (34), a guide plate (25) is fixedly welded to the lower surface of the adjustment bracket (2), a group of guide plates (25) are symmetrically arranged, and guide seats (26) are fixedly welded between the guide plates (25), a guide rod hole (27) is provided on the guide seat (26), and a self-locking structure (28) is mounted on the guide seat (26), and the self-locking structure (28) is composed of a guide rod (29), a movable block (30), a self-locking protrusion (31), a support spring (32) and a pull rod (33).

4. A fastening production flame cutting device according to claim 3, characterized in that: The guide rod (29), the movable block (30), the self-locking protrusion (31), and the pull rod (33) are integrally formed. The support spring (32) is sleeved and mounted on the guide rod (29). The guide rod (29) is movably mounted in the guide rod hole (27) on the guide seat (26). The movable block (30) is a rectangular block, and the movable block (30) is movably arranged between the guide plates (25). The spacing value between the guide plates (25) on both sides is consistent with the width value of the movable block (30). The self-locking groove (35) is a U-shaped groove, and the self-locking groove (35) is arranged around the side of the positioning plate (34) with a circle. The cross-sectional size of the self-locking protrusion (31) is consistent with the cross-sectional size of the self-locking groove (35). When the support spring (32) is in a reset state, the self-locking protrusion (31) is embedded in the self-locking groove (35).

5. A fastening production flame cutting device according to claim 4, characterized in that: The pull rod (33) is a screw rod, and a limit cap (38) is screwed onto the pull rod (33). When the limit cap (38) is screwed to the root of the pull rod (33) and the limit cap (38) is abutted against the side of the adjustment bracket (2), the self-locking protrusion (31) is completely disengaged from the self-locking groove (35).

6. A fastening production flame cutting device according to claim 5, characterized in that: The diameter of the installation shaft (18) is smaller than the diameter of the threaded rod (17), and a guide groove (36) is provided on the side of the installation shaft (18). A guide block (37) is integrally formed on the side wall of the center hole of the positioning plate (34). The guide block (37) is arranged corresponding to the guide groove (36), and the guide block (37) is movably installed in the guide groove (36). When the installation shaft (18) is actually installed, the length of the guide groove (36) exposed outside the ball bearing (16) is greater than the thickness of the positioning plate (34), and when the guide block (37) moves in the guide groove (36), there is always an overlapping area between the self-locking protrusion (31) and the self-locking groove (35).

7. A fastening production flame cutting device according to claim 1, characterized in that: The active roller (7) and the driven roller (15) are both composed of a roller body (21) and an anti-skid layer (22), the roller body (21) is cast from hard metal, the anti-skid layer (22) is a flexible rubber layer, and the anti-skid layer (22) is fixed to the outer surface of the roller body (21). When the device is actually used, the active roller (7) and the driven roller (15) are both in contact with the side wall of the pipe (20) to be cut, and the anti-skid layer (22) is in a compressed state, and the friction force between the anti-skid layer (22) and the pipe (20) to be cut is greater than the torque required for the device to rotate on the pipe (20) to be cut.

8. A fastening production flame cutting device according to claim 7, characterized in that: The edge of the roller body (21) is provided with a snap-fitting groove, the inner side edge of the anti-slip layer (22) is integrally formed with a snap-fitting block (23), when the anti-slip layer (22) is actually installed, the snap-fitting block (23) is embedded in the snap-fitting groove, the outer side wall of the anti-slip layer (22) is provided with an anti-slip groove (24), the anti-slip groove (24) is a hemispherical groove, and a plurality of groups of anti-slip grooves (24) are evenly provided on the outer side wall of the anti-slip layer (22).

9. A production process for fastening a flame cutting device, characterized in that: The production process of the fastening production flame cutting device is realized by any one of the fastening production flame cutting devices of claims 1-8, and the production process of the fastening production flame cutting device comprises: The adjustment process of the adjustment bracket comprises firstly lifting the pipe (20) to be cut by means of the lifting device, and then adjusting the position of the adjustment bracket (2) by means of the adjustment structure (5), thereby clamping the pipe (20) to be cut by means of the active roller (7) and the driven roller (15), so that the cutting device can be installed on the pipe (20) to be cut; During the cutting process, the driving motor (4) is started to drive the active roller (7) to move, so that the cutting device rotates around the pipe (20) to be cut, and the flame cutting head (3) cuts the pipe (20) to be cut during the rotation of the cutting device.

Images