Displacement welding machine capable of achieving multi-angle welding

Abstract

The invention relates to the technical field of laser welding, in particular to a multi-angle welding deflection welding machine which comprises a bottom plate, the upper surface of the bottom plate is rotatably connected with a rotating frame through a driving mechanism, and the upper surface of the rotating frame is movably provided with an electric arc welding head through a lifting mechanism. A heightening frame is fixedly arranged on the upper surface of the bottom plate and located on the inner side of the rotating frame, a V-shaped plate and a clamping plate are installed on the upper surface of the heightening frame through a telescopic mechanism, and a V-shaped supporting plate is movably installed on the side, close to the rotating frame, of the upper surface of the bottom plate through a vertical moving mechanism. According to the device, pipe bodies of a bent pipe section and a straight pipe section can be rapidly arranged and welded, and the machining efficiency is improved; compared with traditional chuck clamping, the problem that the surface of the pipe body deforms and is damaged due to clamping and self gravity factors can be avoided; and good adaptability is achieved, the straight pipe section can be adaptively clamped, and the welding height can be flexibly adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and in particular to a position-shifting welding machine capable of welding at multiple angles. Background Art

[0002] The elbow and straight pipe in the exhaust pipe need to be welded. Arc welding is a commonly used method for connecting the two. Arc welding is a welding method that uses the heat generated by arc discharge to locally heat the weldment to a molten state, promoting the mutual diffusion and bonding between the atoms of the welded metal, thereby achieving metal connection.

[0003] When welding a thicker curved pipe section and a straight pipe section, both need to be fixed separately by a three-jaw chuck. After adjusting the distance, the two ends are opposite to each other. Then the chuck is rotated and the arc welding joint completes a circle of welding. Since the pipe body is relatively thick, it is inconvenient for users to carry it. Secondly, due to the weight of the pipe body itself, it is easy to cause deformation of the pipe body surface at the position clamped by the chuck. In addition, the positioning of the curved pipe section usually requires a specially designed chuck for clamping, which is quite inconvenient. Therefore, we proposed a position-shifting welding machine that can weld at multiple angles. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a position-shifting welding machine capable of welding at multiple angles.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a position-shifting welding machine capable of welding at multiple angles, comprising a base plate, the upper surface of the base plate being rotatably connected to a rotating frame via a driving mechanism, an arc welding head being movably mounted on the upper surface of the rotating frame via a lifting mechanism, a padding frame being fixedly mounted on the upper surface of the base plate and located inside the rotating frame, a V-shaped plate and a clamping plate being mounted on the upper surface of the padding frame via a telescopic mechanism, and a V-shaped support plate being movably mounted on the upper surface of the base plate near the rotating frame via a vertical movement mechanism;

[0006] After the straight pipe section is clamped by the V-shaped plate and the clamping plate, the straight pipe section is coaxial with the rotating frame;

[0007] The bent pipe section is arranged on the V-shaped supporting plate, and the end thereof sags due to gravity and docks with the upper end port of the straight pipe section.

[0008] Preferably, the driving mechanism includes a motor fixedly mounted on the rear surface of the base plate via a mounting seat, a transmission gear is fixedly mounted on the output shaft of the motor, and a ring gear is fixedly sleeved on the outer surface of the rotating frame, which meshes with the transmission gear.

[0009] Preferably, the lower edge of the rotating frame passes through the inner side of the bottom plate, an annular rail is fixedly mounted on the lower surface of the bottom plate, and a ball bearing mechanism is provided on the inner side of the annular rail.

[0010] Preferably, the ball mechanism includes a lower retaining frame fixedly connected to the inner edge of the annular rail, an upper retaining frame is fixedly mounted on the upper surface of the lower retaining frame, and balls are slidably embedded in the surfaces of the upper retaining frame and the upper surface of the balls contacts the lower edge surface of the rotating frame.

[0011] Preferably, the lifting mechanism includes a bottom block fixedly mounted on the upper surface of the rotating frame, the upper end of the bottom block is fixedly connected to a first telescopic cylinder, the telescopic end of the first telescopic cylinder is fixedly connected to a lifting plate, two limit plates are vertically connected to the lower surface of the lifting plate, the limit plates are vertically slidably matched with the outer surface of the first telescopic cylinder, and the arc welding head is fixedly mounted on the end of the lifting plate.

[0012] Preferably, a base frame is fixedly mounted on the lower surface of the bottom plate, and a lower surface of the raised frame is fixedly mounted on the upper surface of the base frame.

[0013] Preferably, the telescopic mechanism includes a fixed seat fixedly mounted on the upper surface of the raised frame, two guide cylinders and a two-way cylinder are fixedly provided on the inner side of the fixed seat, a guide rod slides through the inner side of each guide cylinder, one end of a guide rod is fixedly connected to the side surface of the splint, and one end of the other guide rod is fixedly connected to the connecting side plate, the two telescopic ends of the two-way cylinder are respectively fixedly connected to the splint and the connecting side plate, the surface of the connecting side plate is fixedly connected to the vertical plate, and the lower edge of the V-shaped plate is fixedly connected to the upper surface of the vertical plate.

[0014] Preferably, the vertical movement mechanism includes a connecting seat fixedly mounted on the upper surface of the base plate, a guide tube and a second telescopic cylinder are fixedly mounted on the inner side of the connecting seat, a guide rod is slidably inserted into the upper end of the guide tube, the upper end of the guide rod and the telescopic end of the second telescopic cylinder are jointly fixedly connected to a lifting seat, the upper surface of the lifting seat is fixedly connected to a fixing plate, and the fixing plate is fixedly mounted on the two side surfaces of the V-shaped support plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention places the straight pipe section on the upper surface of the pedestal and controls the two-way cylinder to retract. After that, the straight pipe section and the rotating frame are coaxial. Then, the user arranges the bent pipe section on the V-shaped supporting plate. The end portion sags due to gravity and docks with the upper end port of the straight pipe section. For the gap between the end portion of the bent pipe section and the straight pipe section, the second telescopic cylinder is controlled to retract so as to make the bent pipe section and the straight pipe section end fit together, thereby ensuring the tightness of the welding joint. Therefore, the bent pipe section and the straight pipe section can be quickly arranged, saving time and labor, and the stability between the two can be maintained after the arrangement. After the arrangement of the bent pipe section and the straight pipe section is completed, the transmission gear is rotated by controlling the operation of the motor, thereby rotating the meshing ring gear, and then rotating the rotating frame. Due to the presence of the ball bearing, the lower end of the rotating frame can rotate smoothly, and the friction resistance is small. The arc welding head completes the welding along the connection between the bent pipe section and the straight pipe section. The bent pipe section and the straight pipe section can be quickly arranged and welded, thereby improving the processing efficiency.

[0017] 2. In the present invention, the straight pipe section is placed on the upper surface of the raised frame, and the bent pipe section is arranged on the V-shaped support plate. The end portion sags due to gravity and docks with the upper end port of the straight pipe section. Compared with the traditional chuck clamping, this arrangement can avoid the problem of deformation and damage of the pipe surface due to clamping and its own gravity factors;

[0018] 3. The present invention controls the contraction of the bidirectional cylinder so that the V-shaped plate and the clamping plate can flexibly adapt to the straight pipe section for fixing. When the bent pipe section is arranged, it is placed on the V-shaped support plate, and the end portion droops due to gravity and docks with the upper end port of the straight pipe section. Therefore, it has good adaptability, can adapt to clamping the straight pipe section, and can flexibly adjust the welding height. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a position-shifting welding machine capable of welding at multiple angles according to the present invention;

[0020] Figure 2 This is a schematic diagram from another perspective of a position-shifting welding machine capable of welding at multiple angles according to the present invention;

[0021] Figure 3 The present invention is a position shift welding machine capable of welding multiple angles Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a schematic diagram of a telescopic mechanism of a position-shifting welding machine capable of welding at multiple angles according to the present invention;

[0023] Figure 5 This is a schematic diagram of a vertical movement mechanism of a position-shifting welding machine capable of welding at multiple angles according to the present invention;

[0024] Figure 6This is a cross-sectional view of the bottom plate of a position-shifting welding machine capable of welding at multiple angles according to the present invention;

[0025] Figure 7 The present invention is a position shift welding machine capable of welding multiple angles Figure 6 Enlarged view of point B in the middle;

[0026] Figure 8 The present invention is a schematic diagram of a position-shifting welding machine capable of welding at multiple angles when in use.

[0027] 1. Base plate; 2. Rotating frame; 3. Ring gear; 4. Transmission gear; 5. Motor; 6. Mounting seat; 7. Bottom block; 8. First telescopic cylinder; 9. Lifting plate; 10. Limiting plate; 11. Arc welding joint; 12. Base frame; 13. Pad frame; 15. Fixed seat; 16. Guide cylinder; 17. Bidirectional cylinder; 18. Guide rod; 19. Connecting side plate; 20. Vertical plate; 21. V-shaped plate; 22. Clamping plate; 23. Connecting seat; 24. Second telescopic cylinder; 25. Guide cylinder; 26. Guide rod; 27. Lifting seat; 28. Fixed plate; 29. ​​V-shaped support plate; 30. Ring rail; 31. Upper retaining frame; 32. Lower retaining frame; 33. Ball. DETAILED DESCRIPTION

[0028] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0029] like Figures 1-8 The illustrated embodiment of a position-shifting welding machine capable of welding at multiple angles comprises a base plate 1, the upper surface of which is rotatably connected to a rotating frame 2 via a driving mechanism, an arc welding head 11 being movably mounted on the upper surface of the rotating frame 2 via a lifting mechanism, a raised frame 13 being fixedly mounted on the upper surface of the base plate 1 and located inside the rotating frame 2, a V-shaped plate 21 and a clamping plate 22 being mounted on the upper surface of the raised frame 13 via a telescopic mechanism, and a V-shaped support plate 29 being movably mounted on the upper surface of the base plate 1 near the rotating frame 2 via a vertical movement mechanism;

[0030] The straight and curved sections of the oil pipe are arranged as follows: Figure 8 shown.

[0031] After the straight pipe section is clamped by the V-shaped plate 21 and the clamping plate 22, the straight pipe section is coaxial with the rotating frame 2, ensuring that the arc welding head 11 welds uniformly at all positions of the connection between the straight pipe section and the curved pipe section during circle welding.

[0032] The bent pipe section is arranged on the V-shaped supporting plate 29, and the end thereof sags due to gravity and docks with the upper end port of the straight pipe section.

[0033] like Figure 3As shown, the driving mechanism includes a motor 5 fixedly mounted on the rear surface of the base plate 1 through a mounting base 6, a transmission gear 4 is fixedly mounted on the output shaft of the motor 5, and a ring gear 3 is fixedly sleeved on the outer surface of the rotating frame 2, which meshes with the transmission gear 4. When the motor 5 is running, the transmission gear 4 drives the ring gear 3 to rotate, thereby causing the rotating frame 2 to rotate.

[0034] like Figure 6 、 Figure 7 As shown, the lower edge of the rotating frame 2 passes through the inner side of the base plate 1. A circular rail 30 is fixedly mounted on the lower surface of the base plate 1, and a ball bearing mechanism is disposed on the inner side of the circular rail 30. The ball bearing mechanism includes a lower retainer 32 fixedly connected to the inner edge of the circular rail 30. An upper retainer 31 is fixedly mounted on the upper surface of the lower retainer 32. Ball bearings 33 are slidably mounted on the surfaces of the upper and lower retainers 31 and 32. The upper surfaces of the ball bearings 33 contact the lower edge of the rotating frame 2. This ensures smooth rotation of the rotating frame 2 and reduces wear and damage between the components. Bolts are used to assemble the upper and lower retainers 31 and the lower retainer 32, as well as the lower retainer 32 and the circular rail 30. During assembly, the ball bearings 33 are first mounted on the lower retainer 32, followed by closing the upper retainer 31 and finally securing the lower retainer 32 to the circular rail 30 to complete the assembly at that location.

[0035] like Figure 2 、 Figure 3 As shown, the lifting mechanism includes a bottom block 7 fixedly mounted on the upper surface of the rotating frame 2. The upper end of the bottom block 7 is fixedly connected to a first telescopic cylinder 8. The telescopic end of the first telescopic cylinder 8 is fixedly connected to a lifting plate 9. Two limit plates 10 are vertically connected to the lower surface of the lifting plate 9. The limit plates 10 slide vertically with the outer surface of the first telescopic cylinder 8. Specifically, a vertically extending guide groove can be provided on the surface of the first telescopic cylinder 8 to slide with the limit plates 10, thereby improving the stability of the lifting plate 9 during its up and down movement. An arc welding joint 11 is fixedly mounted on the end of the lifting plate 9. The arc welding joint 11 is a metal connection portion with a metallurgical bond formed by partially melting the welding wire and the workpiece through the high temperature generated by arc discharge, and then cooling and solidifying. The arc welding joint 11 is equipped with a welding wire feeding mechanism for feeding the welding wire. The arc welding joint achieves a strong connection between the metals through metallurgical bonding, and the weld strength is close to or equivalent to that of the parent metal. It is widely used in industrial manufacturing, construction engineering and other fields. It is one of the core connection forms of modern welding technology. The arc welding joint 11 is a prior art and will not be described in detail here.

[0036] like Figure 6 As shown, the lower surface of the base plate 1 is fixedly mounted with a base frame 12, and the lower surface of the raised frame 13 is fixedly mounted on the upper surface of the base frame 12. Specifically, several aluminum profiles can be appropriately installed below the base frame 12 corresponding to the raised frame 13 to fix it to the lower surface of the raised frame 13.

[0037] like Figure 4 As shown, the telescopic mechanism includes a fixed seat 15 fixedly mounted on the upper surface of the raising frame 13, and two guide cylinders 16 and a two-way cylinder 17 are fixedly provided on the inner side of the fixed seat 15. A guide rod 18 slides through the inner side of each guide cylinder 16, and one end of a guide rod 18 is fixedly connected to the side surface of the splint 22, and one end of the other guide rod 18 is fixedly connected to the connecting side plate 19. The two telescopic ends of the two-way cylinder 17 are respectively fixedly connected to the splint 22 and the connecting side plate 19, and the surface of the connecting side plate 19 is fixedly connected to the vertical plate 20, and the lower edge of the V-shaped plate 21 is fixedly connected to the upper surface of the vertical plate 20. When the two-way cylinder 17 is telescopic, the guide rod 18 will slide relatively on the inner side of the guide cylinder 16, thereby improving the stability of the connecting side plate 19 and the splint 22 when moving horizontally. Place the straight pipe section on the upper surface of the bolster 13, control the two-way cylinder 17 to contract, and the clamping plate 22 and the V-shaped plate 21 will move closer to each other to clamp the straight pipe section and position it. After positioning, the straight pipe section is coaxial with the rotating frame 2.

[0038] like Figure 5 As shown, the vertical movement mechanism includes a connecting seat 23 fixedly mounted on the upper surface of the base plate 1, and a guide tube 25 and a second telescopic cylinder 24 are fixedly mounted on the inner side of the connecting seat 23. A guide rod 26 is slidably inserted into the upper end of the guide tube 25, and the upper end of the guide rod 26 and the telescopic end of the second telescopic cylinder 24 are fixedly connected to a lifting seat 27. The upper surface of the lifting seat 27 is fixedly connected to a fixing plate 28, and the fixing plate 28 is fixedly mounted on the two side surfaces of the V-shaped support plate 29. When the second telescopic cylinder 24 is extended or retracted, the guide rod 26 will slide up and down relative to the inner side of the guide tube 25.

[0039] The user places the straight pipe section on the upper surface of the bolster 13 and controls the two-way cylinder 17 to retract. After that, the straight pipe section is coaxial with the rotating frame 2. The user then arranges the bent pipe section on the V-shaped support plate 29. The end portion sags due to gravity and docks with the upper end port of the straight pipe section. For the gap between the bent pipe section and the straight pipe section port, the second telescopic cylinder 24 is controlled to retract to make the bent pipe section and the straight pipe section port stick together, thereby ensuring the tightness of the welding joint. Therefore, the bent pipe section and the straight pipe section can be quickly arranged, saving time and effort, and the stability between the two can be maintained after the arrangement. The state after the arrangement is as follows Figure 8 shown.

[0040] After completing the arrangement of the curved pipe section and the straight pipe section, the motor 5 is controlled to operate so that the transmission gear 4 rotates, and then the meshing ring gear 3 rotates, and then the rotating frame 2 rotates. Due to the presence of the ball 33, the lower end of the rotating frame 2 can rotate smoothly, and the friction resistance is small. The arc welding head 11 completes the welding along the connection between the curved pipe section and the straight pipe section. It should be noted that the height of the arc welding head 11 can be adjusted in advance by extending and retracting the first telescopic cylinder 8 to ensure that welding is performed at the gap. It is flexible to use and easy to adjust.

[0041] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A position-shifting welding machine capable of welding at multiple angles, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is rotatably connected to the rotating frame (2) through a driving mechanism, and an arc welding joint (11) is movably installed on the upper surface of the rotating frame (2) through a lifting mechanism. A padding frame (13) is fixedly provided on the upper surface of the base plate (1) and located inside the rotating frame (2). A V-shaped plate (21) and a clamping plate (22) are installed on the upper surface of the padding frame (13) through a telescopic mechanism. A V-shaped supporting plate (29) is movably installed on the upper surface of the base plate (1) near the rotating frame (2) through a vertical movement mechanism. After the straight pipe section is clamped by the V-shaped plate (21) and the clamping plate (22), the straight pipe section is coaxial with the rotating frame (2); The bent pipe section is arranged on the V-shaped support plate (29), and the end thereof sags due to gravity and docks with the upper end port of the straight pipe section.

2. The position-shifting welding machine capable of welding at multiple angles according to claim 1, characterized in that: The driving mechanism comprises a motor (5) fixedly mounted on the rear surface of the base plate (1) via a mounting seat (6); a transmission gear (4) is fixedly mounted on the output shaft of the motor (5); a ring gear (3) is fixedly mounted on the outer surface of the rotating frame (2); and the ring gear (3) is meshed with the transmission gear (4).

3. The position-shifting welding machine capable of welding at multiple angles according to claim 1, characterized in that: The lower edge of the rotating frame (2) passes through the inner side of the bottom plate (1); a ring rail (30) is fixedly mounted on the lower surface of the bottom plate (1); and a ball bearing mechanism is provided on the inner side of the ring rail (30).

4. The position-shifting welding machine capable of welding at multiple angles according to claim 3, characterized in that: The ball bearing mechanism comprises a lower retaining frame (32) fixedly connected to the inner edge of the annular rail (30); an upper retaining frame (31) is fixedly mounted on the upper surface of the lower retaining frame (32); balls (33) are slidably embedded in the surfaces of the upper retaining frame (31) and the lower retaining frame (32); and the upper surface of the balls (33) contacts the lower edge surface of the rotating frame (2).

5. The position shift welding machine capable of welding at multiple angles according to claim 1, characterized in that: The lifting mechanism comprises a bottom block (7) fixedly mounted on the upper surface of the rotating frame (2); the upper end of the bottom block (7) is fixedly connected to a first telescopic cylinder (8); the telescopic end of the first telescopic cylinder (8) is fixedly connected to a lifting plate (9); two limit plates (10) are vertically connected to the lower surface of the lifting plate (9); the limit plates (10) and the outer surface of the first telescopic cylinder (8) are vertically slidably matched; the arc welding head (11) is fixedly mounted on the end of the lifting plate (9).

6. The position-shifting welding machine capable of welding at multiple angles according to claim 1, characterized in that: A bottom frame (12) is fixedly mounted on the lower surface of the bottom plate (1), and a bottom surface of the elevated frame (13) is fixedly mounted on the upper surface of the bottom frame (12).

7. The position-shifting welding machine capable of welding at multiple angles according to claim 1, characterized in that: The telescopic mechanism includes a fixed seat (15) fixedly mounted on the upper surface of the raised frame (13), two guide cylinders (16) and a bidirectional cylinder (17) are fixedly provided on the inner side of the fixed seat (15), a guide rod (18) is slidably passed through the inner side of each guide cylinder (16), one end of one guide rod (18) is fixedly connected to the side surface of the clamping plate (22), and one end of the other guide rod (18) is fixedly connected to the connecting side plate (19), the two telescopic ends of the bidirectional cylinder (17) are respectively fixedly connected to the clamping plate (22) and the connecting side plate (19), the surface of the connecting side plate (19) is fixedly connected to the vertical plate (20), and the lower edge of the V-shaped plate (21) is fixedly connected to the upper surface of the vertical plate (20).

8. The position-shifting welding machine capable of welding at multiple angles according to claim 1, characterized in that: The vertical movement mechanism includes a connecting seat (23) fixedly mounted on the upper surface of the base plate (1), a guide cylinder (25) and a second telescopic cylinder (24) fixedly mounted on the inner side of the connecting seat (23), a guide rod (26) slidably inserted into the upper end of the guide cylinder (25), the upper end of the guide rod (26) and the telescopic end of the second telescopic cylinder (24) are fixedly connected to a lifting seat (27), the upper surface of the lifting seat (27) is fixedly connected to a fixing plate (28), and the fixing plate (28) is fixedly mounted on the two side surfaces of the V-shaped support plate (29).

Images