A column type welding machine capable of fixing handicrafts

Abstract

The present invention discloses a column-type fixable handicraft welding machine, which relates to the technical field of welding equipment. The key points of its technical solution are: the first fixing mechanism includes a first shell with a hollow interior, a first motor is installed on the inner wall of the first shell, the output shaft of the first motor passes through the first shell and is connected to a first screw, one end of the first screw passes through a group of first fixing parts and is rotatably connected to another group of first fixing parts. The effect is that by setting a fourth motor, a vertical rod, a first turntable, a first fixing mechanism, a second fixing mechanism and a third fixing mechanism, the fourth motor can be controlled to drive the vertical rod to rotate, the first turntable to rotate, and a suitable fixing mechanism can be selected, thereby solving the problem that in order to fix three different hollow welding parts in the existing column-type welding machine, different fixing devices need to be replaced, resulting in reduced working efficiency of the welding machine and increased workload of staff.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and more particularly to a column-type fixed handicraft welding machine. Background Art

[0002] The column welding machine is a device specially used for welding cylindrical or similar shaped workpieces. This welding machine usually consists of a fixed column and a movable welding arm. The welding arm can move up and down along the column and can rotate horizontally to weld different parts of the workpiece. The column welding machine is suitable for welding the inner and outer longitudinal seams and inner and outer circumferential seams of circular cylindrical workpieces such as pipes, containers, and pressure vessels. It is widely used in manufacturing industries such as boilers, pressure vessels, pipelines, and shipbuilding.

[0003] During welding, the input of heat causes the metal material to heat up locally and expand, followed by contraction as it cools. If the workpiece is not secured during the welding process, these thermal cycles can cause uneven deformation of the workpiece. By securing the workpiece, its movement during welding can be limited, reducing deformation caused by thermal stress and cooling contraction.

[0004] The existing column-type welding machine clamps the craftwork by setting a fixing mechanism to ensure the welding quality of the craftwork. However, the three hollow craftworks that are frequently welded include triangular prism tubes, square tubes and round tubes. Since the shapes of the outer surfaces and inner surfaces are different, the existing column-type welding machine needs to replace different fixing devices to fix three different hollow weldments, which reduces the working efficiency of the welding machine and increases the workload of the staff.

[0005] Therefore, in order to solve the above technical problems, the present invention proposes a column-type fixable handicraft welding machine. Summary of the invention

[0006] In view of the shortcomings of the prior art, the object of the present invention is to provide a column-type fixable handicraft welding machine.

[0007] To achieve the above object, the present invention provides the following technical solution: a column-type fixed craft welding machine comprises a bottom plate, a first fixing mechanism, a second fixing mechanism, a third fixing mechanism and a fourth fixing mechanism, a groove is provided on the top of the bottom plate, a threaded seat is provided on the inner wall of the groove, a fourth motor is connected to the top of the threaded seat, and an output shaft of the fourth motor is connected to the first turntable;

[0008] A first fixing mechanism is arranged on the outer surface of the first rotating disk;

[0009] A second fixing mechanism is arranged on the outer surface of the first rotating disk;

[0010] A third fixing mechanism is arranged on the outer surface of the first rotating disk;

[0011] A fourth fixing mechanism is arranged on the outer surface of the first rotating disk;

[0012] The first fixing mechanism comprises a first shell with a hollow interior, a first motor is installed on the inner wall of the first shell, an output shaft of the first motor passes through the first shell and is connected to a first screw, one end of the first screw passes through a group of first fixing members and is rotatably connected to another group of first fixing members, an outer surface of the first screw is threadedly connected to two groups of first moving members, the cross-sections of the first moving member and the first fixing member are both triangular, three sides of the first moving member are connected to two groups of first mounting plates, the two groups of the first mounting plates are rotatably connected to a first rotating shaft, the outer surface of the first rotating shaft is connected to one end of a connecting rod, three sides of the first fixing member are connected to a telescopic tube, one end of the telescopic tube is connected to a first clamp, and the three groups The outer surface of the first clamp is connected to two groups of second mounting plates, the two groups of second mounting plates are rotatably connected to the second rotating shaft, the other end of the connecting rod is connected to the outer surface of the second rotating shaft, one side of the first shell is connected to the first limiting rod, the first limiting rod passes through a group of first fixing parts and two groups of first moving parts, and is connected to another group of first fixing parts, a group of first fixing parts is connected to the first limiting rod at the point where the first limiting rod passes through, and the fourth motor is controlled to rotate, thereby driving the vertical rod to rotate, driving the first turntable to rotate, selecting a suitable fixing mechanism, clamping and fixing the handicraft, and controlling the first motor to drive the first screw to rotate, driving the first clamp to move, thereby clamping and fixing triangular prism tubes with different inner diameters.

[0013] In this solution, the second fixing mechanism includes a second shell with a hollow interior, a second motor is installed on the inner wall of the second shell, an output shaft of the second motor passes through the second shell and is connected to a second screw, one end of the second screw passes through a group of second fixing members and is rotatably connected to another group of second fixing members, the outer surface of the second screw is threadedly connected to two groups of second moving members, the cross-sections of the second moving member and the second fixing member are both square, the four sides of the second moving member are connected to two groups of first mounting plates, the two groups of the first mounting plates are rotatably connected to the first rotating shaft, the outer surface of the first rotating shaft is connected to one end of the connecting rod, and the second fixing The four sides of the component are connected to the telescopic tube, one end of the telescopic tube is connected to the first clamp, the outer surfaces of the four groups of the first clamps are connected to the two groups of second mounting plates, the two groups of the second mounting plates are rotatably connected to the second rotating shaft, the other end of the connecting rod is connected to the outer surface of the second rotating shaft, one side of the second shell is connected to the second limiting rod, the second limiting rod passes through a group of second fixing parts and two groups of second moving parts, and is connected to another group of second fixing parts, and a group of the second fixing parts is connected to the second limiting rod at the place where the second limiting rod passes through, and the second motor is controlled to drive the second screw to rotate, thereby driving the first clamp to move, so as to clamp and fix square tubes with different inner diameters.

[0014] In this embodiment, the third fixing mechanism includes a third shell with a hollow interior, a third motor is installed on the inner wall of the third shell, the output shaft of the third motor passes through the third shell to connect the cross bar, one end of the cross bar passes through a group of second rotating disks and a group of third fixing plates, and is connected to one side of another group of second rotating disks, a group of second rotating disks are connected to the outer surface of the cross bar where they are penetrated by the cross bar, a plurality of sliding grooves are provided on one side of the second rotating disk, a first ring and a second ring are connected on one side of the third fixing plate, a plurality of sliding rails are connected between the first ring and the second ring, and the sliding rails slide in the sliding rails A moving rod is connected, and the outer surface of the moving rod is connected to a sliding member, one end of the sliding member is connected to a limiting plate, and the sliding member slides in a sliding groove, one end of the moving rod passes through a first ring and is connected to a second clamp, and the outer surface of the vertical rod is connected to two groups of third limiting rods, one end of the two groups of the third limiting rods passes through a group of third fixing members and is connected to another group of third fixing members, and one group of the third fixing members is connected to the third limiting rod at the point where the third limiting rod passes through, and the third motor is controlled to drive the cross bar to rotate, drive the second turntable to rotate, and drive the second clamp to move, so as to clamp and fix round tubes of different diameters.

[0015] It should be noted that the fourth fixing mechanism includes a fourth shell, one side of the fourth shell is connected to an L-shaped piece, one end of the L-shaped piece is provided with an opening, and both sides of the inner wall of the L-shaped piece are symmetrically provided with slots, two groups of sliders are slidably connected in the slots, and a telescopic plate is connected between the two groups of sliders, one side of the telescopic plate is connected to one end of a spring, and the other end of the spring is connected to the inner wall of the L-shaped piece, so that a solid welded part can be placed above the L-shaped part, and the distance between the two groups of L-shaped plates can be adjusted by controlling the rotation of the fifth motor, so that the solid handicraft can be clamped and fixed by the two groups of L-shaped parts.

[0016] Furthermore, a fifth motor is installed on one side of the base plate, and the output shaft of the fifth motor passes through one side of the base plate and is connected to one end of a bidirectional screw. The other end of the bidirectional screw is rotatably connected to the inner wall of the groove. The outer surface of the bidirectional screw is threadedly connected to two groups of threaded seats. By controlling the rotation of the fifth motor, the bidirectional screw is driven to rotate, and the two groups of threaded seats are driven to move, thereby adjusting the distance between the two groups of L-shaped plates.

[0017] Among them, one side of the base plate is slidably connected to the welding machine, one side of the welding machine is connected to the first electric telescopic rod, one end of the first electric telescopic rod is connected to the second electric telescopic rod, one end of the second electric telescopic rod is connected to the mounting piece, and one side of the mounting piece is connected to the welding head. The welding head can move left and right, up and down, and forward and backward, and can be adjusted according to the welding position.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, by setting a fourth motor, a vertical rod, a first rotating disk, a first fixing mechanism, a second fixing mechanism and a third fixing mechanism, the fourth motor can be controlled to drive the vertical rod to rotate, drive the first rotating disk to rotate, select a suitable fixing mechanism, control the first motor to drive the first screw to rotate, drive the first clamp to move, and clamp and fix triangular prism tubes with different inner diameters, control the second motor to drive the second screw to rotate, drive the first clamp to move, thereby clamping and fixing square tubes with different inner diameters, and control the third motor to drive the cross rod to rotate, drive the second rotating disk to rotate, drive the second clamp to move, thereby clamping and fixing round tubes with different diameters, thereby solving the problem that in order to fix three different hollow weldments in the existing column-type welding machine, different fixing devices need to be replaced, resulting in reduced working efficiency of the welding machine and increased workload of the staff;

[0020] 2. In the present invention, by setting up the fourth fixing mechanism, the fifth motor can be controlled to rotate, thereby driving the bidirectional screw to rotate, driving the two sets of threaded seats to move, and adjusting the distance between the two sets of L-shaped plates, so that the solid handicraft can be clamped and fixed by the two sets of L-shaped parts. The telescopic plate can be used to place welding parts of different sizes. When the smaller welding parts adjust the distance of the L-shaped plate, the telescopic plate compresses the spring. After welding is completed, the distance between the L-shaped parts is increased, and the telescopic plate is automatically reset under the action of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the vertical rod in the present invention;

[0024] Figure 3 It is a schematic structural diagram of the first screw in the present invention;

[0025] Figure 4 is a schematic structural diagram of the second screw in the present invention;

[0026] Figure 5 It is a structural schematic diagram of the crossbar in the present invention;

[0027] Figure 6 It is a structural schematic diagram of the sliding groove in the present invention;

[0028] Figure 7 It is a structural schematic diagram of the sliding track in the present invention;

[0029] Figure 8It is a structural schematic diagram of the spring in the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the bidirectional screw in the present invention;

[0031] 1. Bottom plate; 2. Threaded seat; 3. Mounting piece; 4. First electric telescopic rod; 5. Second electric telescopic rod; 6. Welding machine; 7. Welding head; 8. Fourth motor; 9. Vertical rod; 10. First shell; 11. Second shell; 12. Third shell; 13. Fourth shell; 14. First turntable; 15. First screw rod; 16. First moving piece; 17. First fixing piece; 18. First clamp; 19. Telescopic tube; 20. First mounting plate; 21. First rotating shaft; 22. Connecting rod; 23. First limit rod; 24. Second screw; 2 5. Second moving member; 26. Second fixed member; 27. Second limiting rod; 28. Cross bar; 29. ​​Third limiting rod; 30. Second turntable; 31. Third fixed member; 32. Sliding groove; 33. Second clamp; 34. First circular ring; 35. Moving rod; 36. Second circular ring; 37. Sliding member; 38. Limiting plate; 39. L-shaped member; 40. Spring; 41. Telescopic plate; 42. Slot; 43. Sliding block; 44. Fifth motor; 45. Bidirectional screw; 46. Sliding track; 47. Second rotating shaft; 48. Second mounting plate. DETAILED DESCRIPTION

[0032] like Figure 1-9 As shown, the present invention provides a column-type fixed craft welding machine 6, including a base plate 1, a first fixing mechanism, a second fixing mechanism, a third fixing mechanism and a fourth fixing mechanism, a groove is provided on the top of the base plate 1, a threaded seat 2 is provided on the inner wall of the groove, the top of the threaded seat 2 is connected to a fourth motor 8, and the output shaft of the fourth motor 8 is connected to a first turntable 14;

[0033] A first fixing mechanism is arranged on the outer surface of the first rotating disk 14;

[0034] A second fixing mechanism is arranged on the outer surface of the first rotating disk 14;

[0035] A third fixing mechanism is arranged on the outer surface of the first rotating disk 14;

[0036] A fourth fixing mechanism is arranged on the outer surface of the first rotating disk 14;

[0037] The first fixing mechanism includes a first shell 10 with a hollow interior, a first motor is installed on the inner wall of the first shell 10, the output shaft of the first motor passes through the first shell 10 and is connected to a first screw 15, one end of the first screw 15 passes through a group of first fixing members 17 and is rotatably connected to another group of first fixing members 17, the outer surface of the first screw 15 is threadedly connected to two groups of first moving members 16, the cross-sections of the first moving members 16 and the first fixing members 17 are both triangular, the three sides of the first moving member 16 are connected to two groups of first mounting plates 20, the two groups of first mounting plates 20 are rotatably connected to a first rotating shaft 21, the outer surface of the first rotating shaft 21 is connected to one end of a connecting rod 22, the three sides of the first fixing member 17 are connected to a telescopic tube 19, one end of the telescopic tube 19 is connected to a first clamp 18, the outer surfaces of the three groups of first clamps 18 are connected to two groups of second mounting plates 48, the two groups of second mounting plates 48 are rotatably connected to a second rotating shaft 47, the connecting rod The other end of 22 is connected to the outer surface of the second rotating shaft 47, and one side of the first shell 10 is connected to the first limiting rod 23, which penetrates a group of first fixing members 17 and two groups of first moving members 16, and is connected to another group of first fixing members 17. A group of first fixing members 17 is connected to the first limiting rod 23 at the point where the first limiting rod 23 penetrates, and can drive the vertical rod 9 to rotate by controlling the fourth motor 8, and drive the first turntable 14 to rotate. When the first fixing mechanism is selected to clamp the handicraft, the first motor is controlled to drive the first screw rod 15 to rotate. Under the action of the first limiting rod 23, the two groups of first moving members 16 move, and the two groups of first fixing members 17 remain stationary. The connecting rod 22 rotates under the action of the first rotating shaft 21, drives the telescopic tube 19 to telescope, drives the first clamp 18 to move, and makes the three groups of first clamps 18 close to the inner wall of the triangular prism tube, thereby clamping and fixing the triangular prism tubes with different inner diameters;

[0038] The second fixing mechanism includes a second shell 11 with a hollow interior, a second motor is installed on the inner wall of the second shell 11, the output shaft of the second motor passes through the second shell 11 and is connected to the second screw 24, one end of the second screw 24 passes through a group of second fixing members 26 and is rotatably connected to another group of second fixing members 26, the outer surface of the second screw 24 is threadedly connected to two groups of second moving members 25, the cross-sections of the second moving members 25 and the second fixing members 26 are both square, the four sides of the second moving member 25 are connected to the two groups of first mounting plates 20, the two groups of first mounting plates 20 are rotatably connected to the first rotating shaft 21, the outer surface of the first rotating shaft 21 is connected to one end of the connecting rod 22, the four sides of the second fixing member 26 are connected to the telescopic tube 19, one end of the telescopic tube 19 is connected to the first clamp 18, the outer surfaces of the four groups of first clamps 18 are connected to the two groups of second mounting plates 48, the two groups of second mounting plates 48 are rotatably connected to the second rotating shaft 47, the connecting rod 22 The other end is connected to the outer surface of the second rotating shaft 47, and one side of the second shell 11 is connected to the second limiting rod 27. The second limiting rod 27 penetrates a group of second fixing members 26 and two groups of second moving members 25, and is connected to another group of second fixing members 26. A group of second fixing members 26 is connected to the second limiting rod 27 at the point where the second limiting rod 27 penetrates. The fourth motor 8 can be controlled to drive the vertical rod 9 to rotate, and the first turntable 14 can be driven to rotate. When the second fixing mechanism is selected to clamp the handicraft, the second motor is controlled to drive the second screw rod 24 to rotate. Under the action of the second limiting rod 27, the two groups of second moving members 25 move, and the two groups of second fixing members 26 remain stationary. The connecting rod 22 rotates under the action of the second rotating shaft 47, driving the telescopic tube 19 to telescope, and driving the first clamp 18 to move, so that the four groups of first clamps 18 or the two groups of first clamps 18 are close to the inner wall of the square tube, thereby clamping and fixing the square tubes with different inner diameters;

[0039] The third fixing mechanism includes an internally hollow third shell 12, an inner wall of the third shell 12 is installed with a third motor, the output shaft of the third motor passes through the third shell 12 and is connected to the cross bar 28, one end of the cross bar 28 passes through a group of second rotating disks 30 and a group of third fixed plates, and is connected to one side of another group of second rotating disks 30, a group of second rotating disks 30 are connected to the outer surface of the cross bar 28 at the point where the cross bar 28 passes through, a plurality of sliding grooves 32 are provided on one side of the second rotating disk 30, one side of the third fixed plate is connected to the first ring 34 and the second ring 36, a plurality of sliding rails 46 are connected between the first ring 34 and the second ring 36, a moving rod 35 is slidably connected in the sliding rail 46, the outer surface of the moving rod 35 is connected to the sliding member 37, one end of the sliding member 37 is connected to the limiting plate 38, the sliding member 37 slides in the sliding groove 32, one end of the moving rod 35 passes through the first ring 34 and is connected to the second clamp 33, and the outer surface of the vertical rod 9 is connected to the two A third limiting rod 29 is formed, one end of the two groups of third limiting rods 29 passes through a group of third fixing members 31 and is connected to another group of third fixing members 31. A group of third fixing members 31 is connected to the third limiting rod 29 at the point where the third limiting rod 29 passes through. The fourth motor 8 can be controlled to drive the vertical rod 9 to rotate, and the first turntable 14 can be driven to rotate. When the third fixing mechanism is selected to clamp the handicraft, the two groups of second turntables 30 are driven to rotate by controlling the motor, and the sliding member 37 in the sliding groove 32 is driven to move. The limiting plate 38 places the sliding member 37 out of the sliding groove 32. When the sliding member 37 moves, the moving rod 35 is driven to move in the sliding track 46. Since the moving rod 35 is limited by the sliding track 46, the moving rod 35 can only move in the direction of the sliding track 46, driving the second clamp 33 to move, so that the second clamp 33 is close to the inner wall of the round tube, thereby clamping and fixing the round tubes of different diameters.

[0040] The fourth fixing mechanism includes a fourth housing 13, one side of the fourth housing 13 is connected to an L-shaped member 39, one end of the L-shaped member 39 is provided with an opening, two sides of the inner wall of the L-shaped member 39 are symmetrically provided with card slots 42, two groups of card slots 42 are slidably connected to sliders 43, a telescopic plate 41 is connected between the two groups of sliders 43, one side of the telescopic plate 41 is connected to one end of a spring 40, and the other end of the spring 40 is connected to the inner wall of the L-shaped member 39, a fifth motor 44 is installed on one side of the bottom plate 1, and the output shaft of the fifth motor 44 passes through one side of the bottom plate 1 and is connected to one end of a bidirectional screw 45, and the other end of the bidirectional screw 45 is rotated The inner wall of the dynamic connection groove and the outer surface of the bidirectional screw 45 are threadedly connected to the two sets of threaded seats 2. The bidirectional screw 45 can be driven to rotate by controlling the fifth motor 44 to drive the two sets of threaded seats 2 to move, and the distance between the two sets of L-shaped plates can be adjusted, so that the solid crafts can be clamped and fixed by the two sets of L-shaped parts 39. The telescopic plate 41 can be placed on welding parts of different sizes. When the smaller welding part adjusts the distance of the L-shaped plate, the telescopic plate 41 compresses the spring 40. After the welding is completed, the distance of the L-shaped part 39 is increased, and the telescopic plate 41 automatically resets under the action of the spring 40;

[0041] One side of the base plate 1 is slidably connected to the welding machine 6, one side of the welding machine 6 is connected to the first electric telescopic rod 4, one end of the first electric telescopic rod 4 is connected to the second electric telescopic rod 5, one end of the second electric telescopic rod 5 is connected to the mounting member 3, one side of the mounting member 3 is connected to the welding head 7, the welding head 7 can move left and right, up and down, and forward and backward, and after the fixing mechanism clamps and fixes the craftwork, the welding head 7 is adjusted according to the required welding position.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A column-type fixed craft welding machine, characterized in that: The invention comprises a bottom plate (1), a first fixing mechanism, a second fixing mechanism, a third fixing mechanism and a fourth fixing mechanism, wherein a groove is provided at the top of the bottom plate (1), a threaded seat (2) is provided on the inner wall of the groove, a fourth motor (8) is connected to the top of the threaded seat (2), and an output shaft of the fourth motor (8) is connected to a first rotating disk (14); the first fixing mechanism is provided on the outer surface of the first rotating disk (14); A second fixing mechanism is arranged on the outer surface of the first rotating disk (14); A third fixing mechanism is arranged on the outer surface of the first rotating disk (14); A fourth fixing mechanism is arranged on the outer surface of the first rotating disk (14); the first fixing mechanism comprises a first shell (10) with a hollow interior, a first motor is installed on the inner wall of the first shell (10), an output shaft of the first motor passes through the first shell (10) and is connected to a first screw rod (15), one end of the first screw rod (15) passes through a group of first fixing members (17) and is rotatably connected to another group of first fixing members (17), the outer surface of the first screw rod (15) is threadedly connected to two groups of first moving members (16), the cross sections of the first moving member (16) and the first fixing member (17) are both triangular, three sides of the first moving member (16) are connected to two groups of first mounting plates (20), the two groups of the first mounting plates (20) are rotatably connected to a first rotating shaft (21), and the outer surface of the first rotating shaft (21) is connected to a connecting member One end of the rod (22), three sides of the first fixing member (17) are connected to the telescopic tube (19), one end of the telescopic tube (19) is connected to the first clamp (18), the outer surfaces of the three groups of the first clamps (18) are connected to the two groups of second mounting plates (48), the two groups of the second mounting plates (48) are rotatably connected to the second rotating shaft (47), the other end of the connecting rod (22) is connected to the outer surface of the second rotating shaft (47), one side of the first shell (10) is connected to the first limiting rod (23), the first limiting rod (23) penetrates a group of first fixing members (17) and two groups of first moving members (16), and is connected to another group of first fixing members (17), and a group of the first fixing members (17) is connected to the first limiting rod (23) at the point where the first limiting rod (23) penetrates; The second fixing mechanism comprises a second housing (11) with a hollow interior, a second motor is mounted on the inner wall of the second housing (11), an output shaft of the second motor passes through the second housing (11) and is connected to a second screw rod (24), one end of the second screw rod (24) passes through a group of second fixing members (26) and is rotatably connected to another group of second fixing members (26), the outer surface of the second screw rod (24) is threadedly connected to two groups of second moving members (25), the cross sections of the second moving members (25) and the second fixing members (26) are both square, four sides of the second moving member (25) are connected to two groups of first mounting plates (20), the two groups of the first mounting plates (20) are rotatably connected to a first rotating shaft (21), and the outer surface of the first rotating shaft (21) is connected to a connecting member. One end of the rod (22), four sides of the second fixing member (26) are connected to the telescopic tube (19), one end of the telescopic tube (19) is connected to the first clamp (18), the outer surfaces of the four groups of the first clamp (18) are connected to the two groups of second mounting plates (48), the two groups of the second mounting plates (48) are rotatably connected to the second rotating shaft (47), the other end of the connecting rod (22) is connected to the outer surface of the second rotating shaft (47), one side of the second shell (11) is connected to the second limiting rod (27), the second limiting rod (27) penetrates a group of second fixing members (26) and two groups of second moving members (25), and is connected to another group of second fixing members (26), and a group of the second fixing members (26) is connected to the second limiting rod (27) at the point where the second limiting rod (27) penetrates; The third fixing mechanism comprises a third housing (12) with a hollow interior, a third motor is installed on the inner wall of the third housing (12), an output shaft of the third motor passes through the third housing (12) and is connected to a cross bar (28), one end of the cross bar (28) passes through a group of second rotating disks (30) and a group of third fixing plates, and is connected to one side of another group of second rotating disks (30), a group of second rotating disks (30) are connected to the outer surface of the cross bar (28) at the point where the cross bar (28) passes through, a plurality of sliding grooves (32) are provided on one side of the second rotating disk (30), one side of the third fixing plate is connected to a first circular ring (34) and a second circular ring (36), and the first circular ring (34) and the second circular ring (36) are connected to each other. A plurality of sliding rails (46), wherein the sliding rails (46) are slidably connected to a moving rod (35), the outer surface of the moving rod (35) is connected to a sliding member (37), one end of the sliding member (37) is connected to a limiting plate (38), the sliding member (37) slides in a sliding groove (32), one end of the moving rod (35) passes through a first ring (34) and is connected to a second clamp (33), the outer surface of the vertical rod (9) is connected to two groups of third limiting rods (29), one end of the two groups of the third limiting rods (29) passes through a group of third fixing members (31) and is connected to another group of third fixing members (31), and one group of the third fixing members (31) is connected to the third limiting rod (29) at the point where the third limiting rod (29) passes through. The fourth fixing mechanism comprises a fourth shell (13), one side of the fourth shell (13) is connected to an L-shaped member (39), one end of the L-shaped member (39) is provided with an opening, two sides of the inner wall of the L-shaped member (39) are symmetrically provided with slots (42), two groups of sliders (43) are slidably connected in the slots (42), a telescopic plate (41) is connected between the two groups of sliders (43), one side of the telescopic plate (41) is connected to one end of a spring (40), and the other end of the spring (40) is connected to the inner wall of the L-shaped member (39).

2. The column-type fixed craft welding machine according to claim 1, characterized in that: A fifth motor (44) is installed on one side of the base plate (1); an output shaft of the fifth motor (44) passes through one side of the base plate (1) and is connected to one end of a bidirectional screw rod (45); the other end of the bidirectional screw rod (45) is rotatably connected to the inner wall of the groove; and the outer surface of the bidirectional screw rod (45) is threadedly connected to two sets of threaded seats (2).

3. A column-type fixed craft welding machine according to claim 2, characterized in that: One side of the base plate (1) is slidably connected to a welding machine (6), one side of the welding machine (6) is connected to a first electric telescopic rod (4), one end of the first electric telescopic rod (4) is connected to a second electric telescopic rod (5), one end of the second electric telescopic rod (5) is connected to a mounting member (3), and one side of the mounting member (3) is connected to a welding head (7).

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