A turning device for automated welding

Abstract

The present application relates to the technical field of welding equipment, and discloses a turnover device for automatic welding, which includes a support frame, a circular plate, a guide rail pair, a first stepped shaft, a second stepped shaft, a first driving member, a second driving member, and a third driving member. The support frame includes two first rotating shafts that can move axially along it and rotate around its axis. Each guide rail pair includes a first moving seat and a second moving seat that move in the radial direction of the circular plate. During use, two circular pipes, two semi-circular pipes, and pipes with only one weld on the side wall formed by bending thin plates can be clamped and fixed. Moreover, since the positions of multiple first stepped shafts and multiple second stepped shafts can be adjusted in the radial direction of the circular plate, it is applicable to the clamping and fixing work of pipes of different sizes. At the same time, multiple first stepped shafts and multiple second stepped shafts are fixed by clamping the side wall of the pipe. Compared with the pressing and fixing method, deformation can be avoided when the pipe wall is thin.

Description

Technical Field

[0001] The present application relates to the technical field of welding equipment, and particularly relates to a flipping device for automated welding. Background Art

[0002] A large-scale automated welding flipping device is disclosed in the related technology (publication number: CN117086561B), which includes a support component, a flipping component, a cleaning component, and a fixing component. The support component includes a bottom plate and two support platforms distributed at intervals. The support platforms are fixedly connected to the upper part of the bottom plate and close to one end thereof. The flipping component is arranged on the upper part of the support component and includes a flipping groove, which is a hollow semi-cylindrical structure and is erected on two groups of support platforms. The cleaning component is arranged on the bottom plate and close to the flipping component, and the cleaning component cleans the welding slag after extending into the flipping groove. The fixing component is arranged on the upper part of the flipping component and is used to limit the workpiece to be welded in the flipping groove, and includes an electric telescopic rod, an arc-shaped supporting plate, and a fixator. The arc-shaped supporting plate is located above the flipping groove, the electric telescopic rod is fixedly arranged at the four corners of the bottom of the arc-shaped supporting plate, and the fixator is arranged at both ends of the arc-shaped supporting plate.

[0003] In the process of implementing the above technical solution, it is found that at least the following problems exist in the related technology:

[0004] For this large-scale automated welding flipping device, through the design of the fixing component, a semi-circular pipe can be fixed and driven to move, so as to be butted with another semi-circular pipe. Through the design of the flipping component, the two butted semi-circular pipes can be driven to flip. However, since the two semi-circular pipes are butted in a pressing manner, deformation is likely to occur when the pipe wall of the semi-circular pipe is relatively thin. Moreover, limited by the shapes of the arc-shaped supporting plate and the flipping groove, only two semi-circular pipes with specific sizes can be fixed. At the same time, the device cannot clamp and fix two circular pipes and pipes formed by bending thin plates with only one weld on the side wall.

[0005] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present application, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0006] To have a basic understanding of some aspects of the disclosed technical solution, a simple summary is given below. The summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these technical solutions, but rather serves as a preface to the subsequent detailed description.

[0007] The present technical solution provides a flipping device for automated welding to solve the problems raised in the above background art.

[0008] In some technical solutions, the flip device for automatic welding includes: a support frame, the support frame includes two first rotating shafts distributed coaxially, and both of the two first rotating shafts can move along their axial directions and rotate around their axes; circular plates, respectively installed at the opposite ends of the two first rotating shafts, and respectively coaxially distributed with the two first rotating shafts, each circular plate includes a plurality of strip holes opened along its radial direction and evenly distributed around its center; guide rail pairs, respectively installed on the opposite surfaces of the two circular plates, and evenly distributed around the center of the circular plates, the number of the guide rail pairs is an even number greater than or equal to six, each guide rail pair includes a first moving seat and a second moving seat that move along the radial direction of the circular plate, and a plurality of the first moving seats are all closer to the center of the circular plate than a plurality of the second moving seats; first stepped shafts, respectively installed along the axial direction of the first rotating shafts on a plurality of the first moving seats; second stepped shafts, respectively slidably passing through a plurality of the second moving seats along the axial direction of the first rotating shafts, and a plurality of the second stepped shafts respectively pass through a plurality of the strip holes; first driving members, respectively installed on the two circular plates, configured to drive a plurality of the first moving seats on each circular plate to move; second driving members, respectively installed on the two circular plates, configured to drive respectively to move a plurality of the second moving seats adjacent to one half and a plurality of the second moving seats adjacent to the other half on each circular plate; third driving members, respectively installed on the two circular plates, configured to drive a plurality of the second stepped shafts connected to the plurality of the second moving seats adjacent to the one half and the plurality of the second moving seats adjacent to the other half to slide respectively; wherein, under the drive of the first driving member and the second driving member, the first stepped shaft and the second stepped shaft installed on the same guide rail pair are in contact with each other.

[0009] Optionally, each of the first driving members includes: first nuts, respectively installed on a plurality of the first moving seats; first lead screws, respectively installed on a plurality of the first nuts, and respectively passing through a plurality of the second moving seats; first spur gears, respectively installed on a plurality of the first lead screws; second rotating shafts, respectively rotatably installed on the circular plates along the radial direction of the circular plates, and respectively adjacent to a plurality of the first lead screws; second spur gears, respectively installed on a plurality of the second rotating shafts, and respectively meshing with a plurality of the first spur gears; first bevel gears, respectively installed on a plurality of the second rotating shafts; first cylinders, rotatably sleeved on the first rotating shafts; second bevel gears, installed on the outer walls of the first cylinders, and respectively meshing with a plurality of the first bevel gears; wherein, the second bevel gears are controlled to rotate so that a plurality of the first moving seats move along the radial direction of the circular plates.

[0010] Optionally, each of the first driving members further includes: first motors, installed on the circular plates; third bevel gears, installed on the rotating ends of the first motors, and meshing with the second bevel gears.

[0011] Optionally, each of the second driving members includes: a second nut respectively mounted on a plurality of the second moving seats; a second lead screw respectively mounted on a plurality of the second nuts and respectively passing through a plurality of the first moving seats; a third spur gear respectively mounted on a plurality of the second lead screws; a first hollow shaft respectively rotatably sleeved on a plurality of the second rotating shafts; a fourth spur gear respectively mounted on a plurality of the first hollow shafts and respectively meshing with a plurality of the third spur gears; a fourth bevel gear respectively mounted on a plurality of the first hollow shafts opposite to a plurality of the second moving seats adjacent to one half; a second cylinder rotatably sleeved on the first cylinder; a fifth bevel gear mounted on an outer wall of the second cylinder and meshing with a plurality of the fourth bevel gears; a sixth bevel gear respectively mounted on a plurality of the first hollow shafts opposite to a plurality of the second moving seats adjacent to the other half; a third cylinder rotatably sleeved on the second cylinder; a seventh bevel gear mounted on an outer wall of the third cylinder and meshing with a plurality of the sixth bevel gears; wherein, the fifth bevel gear and the seventh bevel gear are controlled to rotate respectively, so that a plurality of the second moving seats adjacent to one half and a plurality of the second moving seats adjacent to the other half slide respectively.

[0012] Optionally, each of the second driving members further includes: a second motor mounted on the circular plate; an eighth bevel gear mounted on a rotating end of the second motor and meshing with the fifth bevel gear.

[0013] Optionally, each of the second driving members further includes: a third motor mounted on the circular plate; a ninth bevel gear mounted on a rotating end of the third motor and meshing with the seventh bevel gear.

[0014] Optionally, each of the third driving members includes: a sector plate respectively opposite to a plurality of the second moving seats adjacent to one half and a plurality of the second moving seats adjacent to the other half; an electric push rod respectively mounted between two of the sector plates and the circular plate along an axial direction of the first rotating shaft; a moving plate respectively connected to a plurality of the second stepped shafts; a first slider respectively connected to a plurality of the moving plates; a first guide rail respectively mounted on a plurality of the first sliders and respectively mounted on two of the sector plates; wherein, under a guiding and supporting action of a plurality of the first guide rails and a plurality of the first sliders, a plurality of the moving plates move along a radial direction of the circular plate.

[0015] Optionally, the support frame further includes: a support plate for abutting against the bottom surface; a second guide rail installed on the support plate along the axial direction of the first rotating shaft; second sliders installed on the second guide rail and located on both sides of the second guide rail along the axial direction of the first rotating shaft; a first moving arm installed on one of the second sliders; a second moving arm installed on the other second slider; two first rotating shafts respectively rotatably installed on the first moving arm and the second moving arm; a third nut installed on the first moving arm; a third lead screw installed on the third nut and passing through the second moving arm; a fourth nut installed on the second moving arm; a fourth lead screw installed on the fourth nut and passing through the first moving arm; a second hollow shaft respectively rotatably penetrating through the first moving arm and the second moving arm along the axial direction of the first rotating shaft; a spline sleeve respectively installed on the two second hollow shafts; a spline shaft installed on the two spline sleeves; first belt gears respectively installed on the two second hollow shafts; second belt gears respectively installed on the two first rotating shafts; a toothed belt respectively sleeved between the two first belt gears and the two second belt gears; wherein, the third lead screw, the fourth lead screw and the spline shaft are controlled to rotate so that the two first rotating shafts both move axially and rotate around their axes.

[0016] Optionally, the support frame further includes: a fourth motor opposite to the third lead screw, the fourth lead screw and the spline shaft respectively; couplings respectively installed between the third lead screw, the fourth lead screw and the spline shaft and the rotating ends of the three fourth motors.

[0017] Optionally, each of the guide rail pairs further includes: third sliders respectively connected to a plurality of the first moving seats and the second moving seats; third guide rails installed on the plurality of third sliders and all connected to the circular plate; wherein, under the guiding and supporting action of the third guide rails and the third sliders, the first moving seats and the second moving seats move along the radial direction of the circular plate.

[0018] An automatic welding turnover device provided by this technical solution can achieve the following technical effects:

[0019] When clamping and fixing two circular pipes, after lifting the two circular pipes to the two circular plates respectively, the two circular plates can move driven by the two first rotating shafts, so as to drive the multiple first stepped shafts thereon to be inserted into the interiors of the two circular pipes respectively, and make the multiple second stepped shafts thereon surround the two circular pipes. Then, by controlling the first driving member and the second driving member to work, the multiple first stepped shafts and the multiple second stepped shafts can be made to abut against the inner walls and outer walls of the two circular pipes respectively, so as to complete the fixing of the two circular pipes. After the fixing is completed, the two circular plates move towards each other driven by the two first rotating shafts, and the butt joint of the two circular pipes can be completed, and then welding can be carried out. During the welding process, the two circular plates can rotate driven by the two first rotating shafts, and finally drive the two circular pipes to flip.

[0020] When clamping and fixing a pipe with only one weld seam on the side wall formed by bending a thin plate, after lifting the pipe with only one weld seam on the side wall between the two circular plates, the two circular plates can move towards each other driven by the two first rotating shafts, so as to drive the multiple first stepped shafts thereon to be inserted into the interiors of the two semi-circular pipes respectively, and make the multiple second stepped shafts thereon surround the two semi-circular pipes. Then, by controlling the first driving member and the second driving member to work, the multiple first stepped shafts and the multiple second stepped shafts can be made to abut against the inner walls and outer walls of the two semi-circular pipes respectively, so as to complete the fixing of the pipe with only one weld seam on the side wall, and then welding can be carried out. During the welding process, the two circular plates can rotate driven by the two first rotating shafts, and finally drive the pipe with only one weld seam on the side wall to flip.

[0021] When clamping and fixing two semi-circular pipes, the two circular plates can move towards each other under the drive of the two first rotating shafts, so that multiple first stepped shafts on the two circular plates can be adjusted to a suitable distance. Then, by controlling the first driving member to work, multiple first stepped shafts on the two circular plates can be made to approach or separate from each other, and adjusted to a position matching the inner wall of the semi-circular pipe. Then, by controlling the third driving member to work, multiple second stepped shafts on the two circular plates can slide in the opposite direction, so that a semi-circular pipe can be lifted and placed on the top of multiple first stepped shafts. After the lifting and placing is completed, control the third driving member to work again to reset multiple second stepped shafts adjacent to one half, and control the second driving member to work to move multiple second stepped shafts adjacent to one half, then the clamping and fixing of one semi-circular pipe can be completed. Then, under the drive of the two first rotating shafts, the two circular plates can rotate, and then drive the fixed semi-circular pipe to flip to the bottom of multiple first stepped shafts. After the flipping is completed, another semi-circular pipe can be lifted and placed on the top of multiple first stepped shafts again. After the lifting and placing is completed, control the third driving member to work again to reset multiple second stepped shafts adjacent to the other half, and control the second driving member to work to move multiple second stepped shafts adjacent to the other half, then the clamping and fixing and docking of the other semi-circular pipe can be completed, and then welding can be carried out. During the welding process, under the drive of the two first rotating shafts, the two circular plates can rotate, and finally drive the two semi-circular pipes to flip.

[0022] Therefore, two circular pipes, two semi-circular pipes, and pipes with only one weld seam on the side wall formed by bending thin plates can be clamped and fixed. And, since the positions of multiple first stepped shafts and multiple second stepped shafts can be adjusted along the radial direction of the circular plate, it can be applied to the clamping and fixing work of pipes of different sizes. At the same time, multiple first stepped shafts and multiple second stepped shafts are fixed by clamping the side wall of the pipe. Compared with the pressing and fixing method, when the pipe wall is thin, deformation can be avoided, and the welding effect can be guaranteed.

[0023] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. Brief Description of the Drawings

[0024] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are regarded as similar elements. The drawings do not constitute a proportional limitation, and among them:

[0025] Figure 1 is a front view structural schematic diagram of a flipping device for automatic welding provided by an embodiment of the present disclosure;

[0026] Figure 2 is Figure 1 an enlarged structural schematic diagram of part A in

[0027] Figure 3 is Figure 1 The enlarged structural schematic diagram at position B in

[0028] Figure 4 The side view structural schematic diagram of the circular plate;

[0029] Figure 5 is Figure 4 The enlarged structural schematic diagram at position D in

[0030] Figure 6 is Figure 4 The enlarged structural schematic diagram at position E in

[0031] Figure 7 The side view structural schematic diagram of the sector plate;

[0032] Figure 8 is Figure 7 The enlarged structural schematic diagram at position G in

[0033] Figure 9 The top view structural schematic diagram of the support plate;

[0034] Figure 10 is Figure 9 The enlarged structural schematic diagram at position I in

[0035] Reference numerals:

[0036] 1: First rotating shaft; 2: Circular plate; 3: First moving seat; 4: Second moving seat; 5: First stepped shaft; 6: Second stepped shaft; 7: First nut; 8: First lead screw; 9: First spur gear; 10: Second rotating shaft; 11: Second spur gear; 12: First bevel gear; 13: First cylinder; 14: Second bevel gear; 15: First motor; 16: Second nut; 17: Second lead screw; 18: Third spur gear; 19: First hollow shaft; 20: Fourth spur gear; 21: Fourth bevel gear; 22: Second cylinder; 23: Fifth bevel gear; 24: Sixth bevel gear; 25: Third cylinder; 26: Seventh bevel gear; 27: Second motor; 28: Third motor; 29: Polygonal cylinder; 30: Sector plate; 31: Electric push rod; 32: Moving plate; 33: Guide shaft; 34: Guide cylinder; 35: Support plate; 36: First moving arm; 37: Second moving arm; 38: Third nut; 39: Third lead screw; 40: Fourth nut; 41: Fourth lead screw; 42: Second hollow shaft; 43: Spline sleeve; 44: Spline shaft; 45: Toothed belt; 46: Fourth motor. Detailed implementation manners

[0037] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are only for reference and explanation, and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to give a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner to simplify the drawings.

[0038] In the description of the embodiments of the present disclosure, the terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such data may be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0039] In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their implementations, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0040] In addition, the terms "arranged", "connected", "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0041] Unless otherwise specified, the term "plurality" means two or more.

[0042] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0043] The term "and / or" is a description of the associated relationship of objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B these three relationships.

[0044] It should be noted that, without conflict, the embodiments in this disclosure and the features in the embodiments may be combined with each other.

[0045] Combined with Figures 1 to 10 As shown, the embodiments of the present disclosure provide a turnover device for automatic welding, including a support frame, a circular plate 2, a guide rail pair, a first stepped shaft 5, a second stepped shaft 6, a first driving member, a second driving member, and a third driving member. The support frame is used to abut against the ground to support the entire device, including two first rotating shafts 1 distributed coaxially. Both of the two first rotating shafts 1 can move along their axial directions and rotate around their axes. The circular plates 2 are respectively installed at the opposite ends of the two first rotating shafts 1 and are coaxially distributed with the two first rotating shafts 1. Each circular plate 2 includes a plurality of strip-shaped holes opened along its radial direction and evenly distributed around its center. The two circular plates 2 move and rotate driven by the two first rotating shafts 1. The guide rail pairs are respectively installed on the opposite surfaces of the two circular plates 2 and are evenly distributed around the center of the circular plates 2. The number of the guide rail pairs is an even number greater than or equal to six. Each guide rail pair is used for guiding and supporting to achieve the moving function. Each guide rail pair includes a first moving seat 3 and a second moving seat 4 that move along the radial direction of the circular plate 2. A plurality of first moving seats 3 are all closer to the center of the circular plate 2 than a plurality of second moving seats 4. The first stepped shaft 5 is installed along the axial direction of the first rotating shaft 1 on a plurality of first moving seats 3 respectively, and is all used to abut against the inner side surfaces of circular, semi-circular pipes and pipes with only one weld on the side wall formed by bending thin plates. The second stepped shaft 6 is installed along the axial direction of the first rotating shaft 1 and is respectively slidably inserted through a plurality of second moving seats 4. A plurality of second stepped shafts 6 respectively pass through a plurality of strip-shaped holes. A plurality of second stepped shafts 6 are all used to abut against the outer side surfaces of circular, semi-circular pipes and pipes with only one weld, and can slide relative to a plurality of second moving seats 4 respectively. The first driving members are respectively installed on the two circular plates 2, and are used to provide driving force to drive a plurality of first moving seats 3 on each circular plate 2 to move, and then drive a plurality of first stepped shafts 5 to move along the radial direction of the circular plate 2. The second driving members are respectively installed on the two circular plates 2, and are used to provide driving force to drive half of the adjacent plurality of second moving seats 4 and the other half of the adjacent plurality of second moving seats 4 on each circular plate 2 to move respectively, and then drive a plurality of second stepped shafts 6 connected to the half of the adjacent and the other half of the adjacent plurality of second moving seats 4 to move along the radial direction of the circular plate 2 respectively. The third driving members are respectively installed on the two circular plates 2, and are used to provide driving force to drive a plurality of second stepped shafts 6 connected to the half of the adjacent and the other half of the adjacent plurality of second moving seats 4 to slide respectively. Among them, driven by the first driving member and the second driving member, the first stepped shaft 5 and the second stepped shaft 6 installed on the same guide rail pair abut against each other to be able to clamp the pipe to be welded.

[0046] When clamping and fixing two circular pipes, after lifting the two circular pipes to the two circular plates 2 respectively, the two circular plates 2 can move driven by the two first rotating shafts 1, so as to drive the multiple first stepped shafts 5 thereon to be inserted into the interiors of the two circular pipes respectively, and the multiple second stepped shafts 6 thereon surround the two circular pipes. Then, by controlling the first driving member and the second driving member to work, the multiple first stepped shafts 5 and the multiple second stepped shafts 6 can be made to abut against the inner walls and outer walls of the two circular pipes respectively, so as to complete the fixation of the two circular pipes. After the fixation is completed, the two circular plates 2 move towards each other driven by the two first rotating shafts 1, and the butt joint of the two circular pipes can be completed, and then welding can be carried out. During the welding process, the two circular plates 2 can rotate driven by the two first rotating shafts 1, and finally drive the two circular pipes to turn over.

[0047] When clamping and fixing a pipe with only one weld seam on the side wall formed by bending a thin plate, after lifting the pipe with only one weld seam on the side wall between the two circular plates 2, the two circular plates 2 can move towards each other driven by the two first rotating shafts 1, so as to drive the multiple first stepped shafts 5 thereon to be inserted into the interiors of the two semi-circular pipes respectively, and the multiple second stepped shafts 6 thereon surround the two semi-circular pipes. Then, by controlling the first driving member and the second driving member to work, the multiple first stepped shafts 5 and the multiple second stepped shafts 6 can be made to abut against the inner walls and outer walls of the two semi-circular pipes respectively, so as to complete the fixation of the pipe with only one weld seam on the side wall, and then welding is carried out. During the welding process, the two circular plates 2 can rotate driven by the two first rotating shafts 1, and finally drive the pipe with only one weld seam on the side wall to turn over.

[0048] When clamping and fixing two semi-circular pipes, driven by two first rotating shafts 1, two circular plates 2 can move towards each other, so as to adjust multiple first stepped shafts 5 on the two circular plates 2 to a suitable distance. Then, by controlling the first driving member to work, multiple first stepped shafts 5 on the two circular plates 2 can be made to approach or separate from each other, and adjusted to a position matching the inner wall of the semi-circular pipe. Then, by controlling the third driving member to work, multiple second stepped shafts 6 on the two circular plates 2 can slide in the opposite direction, so that a semi-circular pipe can be lifted and placed on the top of multiple first stepped shafts 5. After the lifting and placing is completed, control the third driving member to work again to reset multiple adjacent second stepped shafts 6 of one half, and control the second driving member to work to move multiple adjacent second stepped shafts 6 of one half, then the clamping and fixing of one semi-circular pipe can be completed. Then, driven by two first rotating shafts 1, two circular plates 2 can rotate, and then drive the fixed semi-circular pipe to flip to the bottom of multiple first stepped shafts 5. After the flipping is completed, another semi-circular pipe can be lifted and placed on the top of multiple first stepped shafts 5 again. After the lifting and placing is completed, control the third driving member to work again to reset multiple adjacent second stepped shafts 6 of the other half, and control the second driving member to work to move multiple adjacent second stepped shafts 6 of the other half, then the clamping and fixing and docking of the other semi-circular pipe can be completed, and then welding can be carried out. During the welding process, driven by two first rotating shafts 1, two circular plates 2 can rotate, and finally drive the two semi-circular pipes to flip.

[0049] Therefore, two circular pipes, two semi-circular pipes, and pipes with only one weld seam on the side wall bent from thin plates can be clamped and fixed. And, since the positions of multiple first stepped shafts 5 and multiple second stepped shafts 6 can be adjusted along the radial direction of the circular plate 2, it can be applied to the clamping and fixing work of pipes of different sizes. At the same time, multiple first stepped shafts 5 and multiple second stepped shafts 6 are fixed by clamping the side wall of the pipe. Compared with the pressing and fixing method, when the pipe wall is thin, deformation can be avoided and the welding effect can be guaranteed.

[0050] Optionally, as shown in Figure 4 and Figure 5 , a first linear bearing is further included. The first linear bearings are respectively sleeved on multiple second stepped shafts 6 and are respectively installed on multiple second moving seats 4.

[0051] In the embodiment of the present disclosure, multiple first linear bearings are used to reduce the friction force between multiple second stepped shafts 6 and multiple second moving seats 4 and improve the accuracy when multiple second stepped shafts 6 slide relative to multiple second moving seats 4.

[0052] Optionally, as shown in Figures 4 to 6As shown in the figure, each first driving member includes a first nut 7, a first lead screw 8, a first spur gear 9, a second rotating shaft 10, a second spur gear 11, a first bevel gear 12, a first cylinder 13 and a second bevel gear 14. The first nuts 7 are respectively installed on a plurality of first moving seats 3 and are respectively used to drive the plurality of first moving seats 3 to move. The first lead screws 8 are respectively installed on the plurality of first nuts 7 and respectively pass through a plurality of second moving seats 4. The plurality of second moving seats 4 respectively include through holes for the plurality of first lead screws 8. The first spur gears 9 are respectively installed on the plurality of first lead screws 8 and are respectively used to drive the plurality of first lead screws 8 to perform rotational motion. The second rotating shafts 10 are installed on the circular plate 2 in a rotatable manner along the radial direction of the circular plate 2 and are respectively adjacent to the plurality of first lead screws 8. Each second rotating shaft 10 rotates around its axis. The second spur gears 11 are respectively installed on the plurality of second rotating shafts 10 and are respectively meshed with the plurality of first spur gears 9 to jointly transmit driving force. The first bevel gears 12 are respectively installed on the plurality of second rotating shafts 10 and are respectively used to drive the plurality of second rotating shafts 10 to rotate. The first cylinder 13 is rotatably sleeved on the first rotating shaft 1 and can perform rotational motion relative to the first rotating shaft 1. The second bevel gear 14 is installed on the outer wall of the first cylinder 13 and is respectively meshed with the plurality of first bevel gears 12 to jointly transmit driving force and change the direction of the acting force. Among them, the second bevel gear 14 is controlled to rotate so that the plurality of first moving seats 3 move along the radial direction of the circular plate 2.

[0053] In the embodiment of the present disclosure, after the second bevel gear 14 is controlled to rotate under the drive of an external force, through the meshing action between teeth, the plurality of first bevel gears 12 can be driven to rotate. Then, the plurality of second rotating shafts 10 are driven to rotate, and then the plurality of second spur gears 11 are driven to rotate. Again, through the meshing action between teeth, the plurality of first spur gears 9 can be driven to rotate, and then the plurality of first lead screws 8 are driven to rotate. Then, under the guiding and supporting action of the plurality of guide rail pairs, the plurality of first nuts 7 can drive the plurality of first moving seats 3 to move along the radial direction of the circular plate 2, and finally the plurality of first stepped shafts 5 approach or separate from each other. Therefore, by driving the second bevel gear 14 to rotate, the function of simultaneously moving the plurality of first stepped shafts 5 can be realized, and the number of driving sources used is reduced.

[0054] Optionally, in combination with Figure 4 As shown in the figure, each first driving member further includes a first motor 15 and a third bevel gear. The first motor 15 is installed on the circular plate 2 and is used to provide driving force. The third bevel gear is installed on the rotating end of the first motor 15 and is meshed with the second bevel gear 14 to transmit driving force and change the direction of the acting force.

[0055] In the embodiment of the present disclosure, controlling the first motor 15 to work can drive the third bevel gear to rotate. Through the meshing action between teeth, the second bevel gear 14 can be driven to rotate, and finally the function of automatically adjusting the positions of the plurality of first stepped shafts 5 is realized.

[0056] Optionally, in combination with Figures 4 to 6 As shown, each second driving member includes a second nut 16, a second lead screw 17, a third spur gear 18, a first hollow shaft 19, a fourth spur gear 20, a fourth bevel gear 21, a second cylinder 22, a fifth bevel gear 23, a sixth bevel gear 24, a third cylinder 25, and a seventh bevel gear 26. The second nuts 16 are respectively installed on a plurality of second moving seats 4 and are respectively used to drive a plurality of second stepped shafts 6 to move. The second lead screws 17 are respectively installed on the plurality of second nuts 16 and respectively pass through a plurality of first moving seats 3, and the plurality of first moving seats 3 respectively include through holes for passing through the plurality of second lead screws 17. The third spur gears 18 are respectively installed on the plurality of second lead screws 17 and are respectively used to drive the plurality of second lead screws 17 to rotate. The first hollow shafts 19 are respectively rotatably sleeved on a plurality of second rotating shafts 10 and can perform a rotational motion relative to the second rotating shafts 10. The fourth spur gears 20 are respectively installed on the plurality of first hollow shafts 19 and are respectively meshed with the plurality of third spur gears 18 for transmitting driving force. The fourth bevel gears 21 are respectively installed on the plurality of first hollow shafts 19 opposite to a plurality of second moving seats 4 adjacent to one half and are used to drive the plurality of first hollow shafts 19 connected thereto to rotate. The second cylinder 22 is rotatably sleeved on the first cylinder 13 and can perform a rotational motion relative to the first cylinder 13. The fifth bevel gear 23 is installed on the outer wall of the second cylinder 22 and is meshed with the plurality of fourth bevel gears 21 for transmitting driving force and changing the direction of the acting force. The sixth bevel gears 24 are respectively installed on the plurality of first hollow shafts 19 opposite to a plurality of second moving seats 4 adjacent to the other half and are used to drive the plurality of first hollow shafts 19 connected thereto to rotate. The third cylinder 25 is rotatably sleeved on the second cylinder 22 and can perform a rotational motion relative to the second cylinder 22. The seventh bevel gear 26 is installed on the outer wall of the third cylinder 25 and is meshed with the plurality of sixth bevel gears 24 for transmitting driving force and changing the direction of the acting force. Among them, the fifth bevel gear 23 and the seventh bevel gear 26 are controlled to rotate respectively so that a plurality of second moving seats 4 adjacent to one half and a plurality of second moving seats 4 adjacent to the other half slide respectively.

[0057] In the embodiment of the present disclosure, after the fifth bevel gear 23 is driven to rotate under the action of an external force, through the meshing between teeth, a plurality of fourth bevel gears 21 can be driven to rotate. Further, a plurality of first hollow shafts 19 connected thereto are driven to rotate, and then a plurality of fourth spur gears 20 adjacent to half of them are driven to rotate. Again, through the meshing between teeth, a plurality of third spur gears 18 adjacent to half of them can be driven to rotate, and then a plurality of second lead screws 17 adjacent to half of them are driven to rotate. Then, under the guiding and supporting action of a plurality of guide rail pairs adjacent to half of them, a plurality of second nuts 16 adjacent to half of them can drive a plurality of second moving seats 4 adjacent to half of them to move along the radial direction of the circular plate 2, and finally a plurality of second stepped shafts 6 adjacent to half of them approach or separate from each other. After the seventh bevel gear 26 is driven to rotate under the action of an external force, through the meshing between teeth, a plurality of sixth bevel gears 24 can be driven to rotate. Further, a plurality of first hollow shafts 19 connected thereto are driven to rotate, and then a plurality of fourth spur gears 20 adjacent to the other half are driven to rotate. Again, through the meshing between teeth, a plurality of third spur gears 18 adjacent to the other half can be driven to rotate, and then a plurality of second lead screws 17 adjacent to the other half are driven to rotate. Then, under the guiding and supporting action of a plurality of guide rail pairs adjacent to the other half, a plurality of second nuts 16 adjacent to the other half can drive a plurality of second moving seats 4 adjacent to the other half to move along the radial direction of the circular plate 2, and finally a plurality of second stepped shafts 6 adjacent to the other half approach or separate from each other. Therefore, by separately driving the fifth bevel gear 23 and the seventh bevel gear 26 to rotate, the functions of a plurality of second stepped shafts 6 adjacent to half of them and a plurality of second stepped shafts 6 adjacent to the other half approaching or separating from each other respectively can be realized, and the number of driving sources used is reduced.

[0058] Optionally, as shown in Figure 4 Each second driving member further includes a second motor 27 and an eighth bevel gear. The second motor 27 is installed on the circular plate 2 and is used to provide a driving force. The eighth bevel gear is installed at the rotating end of the second motor 27 and meshes with the fifth bevel gear 23, and is used to transmit the driving force and change the direction of the acting force.

[0059] In the embodiment of the present disclosure, by controlling the second motor 27 to work, the eighth bevel gear can be driven to rotate. Through the meshing between teeth, the fifth bevel gear 23 can be driven to rotate, and finally the function of automatically adjusting the positions of a plurality of second stepped shafts 6 adjacent to half of them is realized.

[0060] Optionally, as shown in Figure 4 Each second driving member further includes a third motor 28 and a ninth bevel gear. The third motor 28 is installed on the circular plate 2 and is used to provide a driving force. The ninth bevel gear is installed at the rotating end of the third motor 28 and meshes with the seventh bevel gear 26, and is used to transmit the driving force and change the direction of the acting force.

[0061] In the embodiments of the present disclosure, controlling the operation of the third motor 28 can drive the ninth bevel gear to rotate. Through the meshing action between teeth, the seventh bevel gear 26 can be driven to rotate, and finally the automatic adjustment function of the positions of multiple second stepped shafts 6 adjacent to each other on the other half is realized.

[0062] Optionally, in combination with Figure 4 as shown, the first motor 15, the second motor 27, and the third motor 28 all include long-shaft reduction motors.

[0063] In the embodiments of the present disclosure, the first motor 15, the second motor 27, and the third motor 28 all adopt the design of long-shaft reduction motors to replace the design of externally connecting an extension shaft to the rotating end of a common reduction motor.

[0064] Optionally, in combination with Figure 4 and Figure 6 as shown, each second driving member further includes a first pillow block bearing. The first pillow block bearings are respectively sleeved on the rotating ends of the first motor 15, the second motor 27, and the third motor 28, as well as multiple second rotating shafts 10 and multiple first hollow shafts 19, and are all installed on the circular plate 2.

[0065] In the embodiments of the present disclosure, the first pillow block bearings are used for multiple first rotating shafts 1 and multiple first hollow shafts 19 to rotate around their axes, and to ensure the rotational accuracy of multiple first rotating shafts 1 and multiple first hollow shafts 19. At the same time, the first pillow block bearings are also used to reduce the force received by the rotating ends of the first motor 15, the second motor 27, and the third motor 28, and to reduce the jitter of the rotating ends of the first motor 15, the second motor 27, and the third motor 28.

[0066] Optionally, in combination with Figure 4 as shown, each second driving member further includes a polygonal cylinder 29 and a second pillow block bearing. The polygonal cylinder 29 is installed on the circular plate 2 and surrounds multiple first lead screws 8 and second lead screws 17. The second pillow block bearings are respectively sleeved on multiple first lead screws 8 and multiple second lead screws 17, and are all installed on the inner side surface of the polygonal cylinder 29.

[0067] In the embodiments of the present disclosure, after the polygonal cylinder 29 is installed on the circular plate 2, it is used to support and install multiple second pillow block bearings. The multiple second pillow block bearings are used to support and install multiple first lead screws 8 and multiple second lead screws 17 to improve the rotational accuracy of multiple first lead screws 8 and multiple second lead screws 17.

[0068] Optionally, in combination with Figure 1 and Figure 2 as shown, a first bearing is further included. The first bearings are respectively installed between the first rotating shaft 1 and the first cylinder 13, between the first cylinder 13 and the second cylinder 22, and between the second cylinder 22 and the third cylinder 25.

[0069] In the embodiments of the present disclosure, multiple first bearings are used to enable mutual rotation between the first rotating shaft 1, the first cylinder 13, the second cylinder 22, and the third cylinder 25, reduce the friction between the first rotating shaft 1, the first cylinder 13, the second cylinder 22, and the third cylinder 25, and ensure the rotational accuracy between the first rotating shaft 1, the first cylinder 13, the second cylinder 22, and the third cylinder 25.

[0070] Optionally, as shown in combination with Figure 1 , Figure 7 and Figure 8 , each third driving member includes a sector plate 30, an electric push rod 31, a moving plate 32, a first slider, and a first guide rail. The sector plates 30 face respectively half of the adjacent and the other half of the adjacent multiple second moving seats 4. The two sector plates 30 are used to drive the corresponding half of the adjacent multiple second stepped shafts 6 and the corresponding other half of the adjacent multiple second stepped shafts 6 to slide respectively. The electric push rods 31 are respectively installed between the two sector plates 30 and the circular plate 2 along the axial direction of the first rotating shaft 1 for providing driving force. The moving plates 32 are respectively connected to the multiple second stepped shafts 6 and move synchronously with the multiple second stepped shafts 6. The first sliders are respectively connected to the multiple moving plates 32. The first guide rails are respectively installed on the multiple first sliders and are respectively installed on the two sector plates 30. The multiple first guide rails and the multiple first sliders together play a role of guiding and supporting. Among them, under the guiding and supporting action of the multiple first guide rails and the multiple first sliders, the multiple moving plates 32 move along the radial direction of the circular plate 2.

[0071] In the embodiments of the present disclosure, by respectively controlling the two electric push rods 31 to work, the two sector plates 30 can be respectively driven to move. Finally, the corresponding half of the adjacent multiple second stepped shafts 6 can be simultaneously slid, or the corresponding other half of the adjacent multiple second stepped shafts 6 can be simultaneously slid. And, through the design of the multiple first guide rails and the multiple first sliders, the multiple moving plates 32 can move along with the movement of the multiple second supports. Thus, interference is avoided, and the multiple second stepped shafts 6 can move along the radial direction of the circular plate 2 and can also move along the axial direction of the first rotating shaft 1.

[0072] Optionally, as shown in combination with Figure 1 , each third driving member further includes a guide shaft 33, a guide cylinder 34, and a second linear bearing. The guide shafts 33 are respectively connected to the two sector plates 30 along the axis direction of the first rotating shaft 1. The guide cylinders 34 are respectively sleeved on the guide shafts 33 and are both installed on the circular plate 2. The second linear bearings are respectively sleeved on each guide shaft 33 and are respectively installed at the ports of each guide cylinder 34.

[0073] In the embodiments of the present disclosure, multiple guide shafts 33 and multiple guide cylinders 34 are both used for guiding and supporting, so as to reduce the radial forces received by the moving ends of the two electric push rods 31 and improve the stability when the two sector plates 30 move. Multiple second linear bearings are used to reduce the friction between the multiple guide shafts 33 and the multiple guide cylinders 34, thereby reducing the wear and damage between parts.

[0074] Optionally, in combination with Figure 1 , Figure 3 , Figure 9 and Figure 10As shown, the support frame further includes a support plate 35, a second guide rail, second sliders, a first moving arm 36, a second moving arm 37, a third nut 38, a third lead screw 39, a fourth nut 40, a fourth lead screw 41, a second hollow shaft 42, a spline sleeve 43, a spline shaft 44, a first belt gear, a second belt gear, and a toothed belt 45. The support plate 35 is used to abut against the bottom surface, thereby supporting the entire device. The second guide rail is installed on the support plate 35 along the axial direction of the first rotating shaft 1 and is used to support and install the slidable second sliders. The second sliders are installed on the second guide rail and are located on both sides of the second guide rail along the axial direction of the first rotating shaft 1. The second guide rail and the second sliders on both sides jointly play a role in guiding and supporting. The first moving arm 36 is installed on the second slider on either side, and the second moving arm 37 is installed on the second slider on the other side. Under the guiding and supporting action of the second guide rail and the second sliders on both sides, the first moving arm 36 and the second moving arm 37 can move along the axial direction of the first rotating shaft 1 respectively. The two first rotating shafts 1 are respectively rotatably installed on the first moving arm 36 and the second moving arm 37 and can respectively perform rotational movements relative to the first moving arm 36 and the second moving arm 37. The third nut 38 is installed on the first moving arm 36 and is used to drive the first moving arm 36 to move. The third lead screw 39 is installed on the third nut 38 and passes through the second moving arm 37. The second moving arm 37 includes a through hole for passing the third lead screw 39. The fourth nut 40 is installed on the second moving arm 37 and is used to drive the second moving arm 37 to move. The fourth lead screw 41 is installed on the fourth nut 40 and passes through the first moving arm 36. The first moving arm 36 includes a through hole for passing the fourth lead screw 41. The second hollow shaft 42 is respectively rotatably passed through the first moving arm 36 and the second moving arm 37 along the axial direction of the first rotating shaft 1 and is respectively used to support and install the spline sleeve 43. The spline sleeve 43 is respectively installed on the two second hollow shafts 42 and is used to support and install the slidable spline shaft 44. The spline shaft 44 is installed on the two spline sleeves 43 and is used to drive the two spline sleeves 43 to rotate. The first belt gears are respectively installed on the two second hollow shafts 42 and rotate respectively under the drive of the two second hollow shafts 42. The second belt gears are respectively installed on the two first rotating shafts 1 and are respectively used to drive the two first rotating shafts 1 to rotate. The toothed belt 45 is respectively sleeved between the two first belt gears and the two second belt gears and is respectively used to transmit the driving force. Among them, the third lead screw 39, the fourth lead screw 41, and the spline shaft 44 are controlled to rotate so that the two first rotating shafts 1 both move along their axial directions and rotate around their axes.

[0075] In the embodiment of the present disclosure, after the third lead screw 39 is controlled to rotate under the drive of an external force, the third nut 38 can drive the first moving arm 36 to move along the axial direction of the first rotating shaft 1 under the guiding and supporting action of the second guide rail and the second slider. After the fourth lead screw 41 is controlled to rotate under the drive of an external force, the fourth nut 40 can drive the second moving arm 37 to move along the axial direction of the first rotating shaft 1 under the guiding and supporting action of the second guide rail and the second slider, and finally both first rotating shafts 1 can move along their axial directions. After the spline shaft 44 is controlled to rotate under the drive of an external force, the two spline sleeves 43 can be driven to rotate. Then, the two second hollow shafts 42 are driven to rotate, and then the two first belt gears are driven to rotate. Through the two toothed belts 45, the two second belt gears can be driven to rotate, and finally the function of the two first rotating shafts 1 rotating around their axes is realized.

[0076] Optionally, as shown in combination with Figure 1 and Figure 9 the support frame further includes a fourth motor 46 and a coupling. The fourth motor 46 faces the third lead screw 39, the fourth lead screw 41, and the spline shaft 44 respectively, and is respectively used to provide driving force. The couplings are respectively installed between the third lead screw 39, the fourth lead screw 41, the spline shaft 44 and the rotating ends of the three fourth motors 46, and are respectively used to transmit the driving force.

[0077] In the embodiment of the present disclosure, by respectively controlling the three fourth motors 46 to work, the third lead screw 39, the fourth lead screw 41, and the spline shaft 44 can be respectively driven to rotate through the three couplings, and finally the functions of the two first rotating shafts 1 automatically moving along their axes and automatically rotating around their axes are realized.

[0078] Optionally, as shown in combination with Figure 1 the support frame further includes a first bearing seat and a second bearing. The first bearing seats are respectively installed on the first moving arm 36 and the second moving arm 37, and are respectively sleeved on the two first rotating shafts 1. The second bearings are respectively installed between the two first bearing seats and the two first rotating shafts 1.

[0079] In the embodiment of the present disclosure, after the first bearing seats are respectively installed on the first moving arm 36 and the second moving arm 37, they are respectively used to support and install the second bearings and limit the second bearings. The second bearings are respectively used to support and install the two rotatable first rotating shafts 1, reduce the friction force received by the two first rotating shafts 1, and improve the rotational accuracy of the two first rotating shafts 1.

[0080] Optionally, as shown in combination with Figure 1 and Figure 3 the support frame further includes a second bearing seat and a third bearing. The second bearing seats are respectively installed on the first moving arm 36 and the second moving arm 37, and are respectively sleeved on the two second hollow shafts 42. The third bearings are respectively installed between the two second bearing seats and the two second hollow shafts 42.

[0081] In the embodiments of the present disclosure, after the second bearing seats are respectively installed on the first moving arm 36 and the second moving arm 37, they are respectively used to support and install the third bearing and limit the third bearing. The third bearings are respectively used to support and install two rotatable second hollow shafts 42, reduce the friction force received by the two second hollow shafts 42, and improve the rotational accuracy of the two second hollow shafts 42.

[0082] Optionally, as shown in Figure 1 and Figure 9 , the support frame further includes third pedestal bearings. The third pedestal bearings are respectively sleeved on the third lead screw 39 and the fourth lead screw 41, and are both installed on the support plate 35.

[0083] In the embodiments of the present disclosure, the third pedestal bearings are used to improve the stability when the third lead screw 39 and the fourth lead screw 41 rotate, and improve the rotational accuracy of the third lead screw 39 and the fourth lead screw 41.

[0084] Optionally, as shown in Figures 4 to 6 , each guide pair further includes a third slider and a third guide rail. The third sliders are respectively connected to a plurality of first moving seats 3 and second moving seats 4, and are respectively used to support and install the third guide rail. The third guide rails are installed on the plurality of third sliders and are both connected to the circular plate 2, and together play a role of guiding and supporting. Among them, under the guiding and supporting action of the third guide rail and the third slider, the first moving seat 3 and the second moving seat 4 move along the radial direction of the circular plate 2.

[0085] In the embodiments of the present disclosure, the plurality of third guide rails and the plurality of third sliders together play a role of guiding and supporting, so that the plurality of first moving seats 3 and the plurality of second moving seats 4 move along the radial direction of the circular plate 2.

[0086] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, the individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. An automatic welding turning device, characterized in that Comprising: A support frame, the support frame including two first rotating shafts distributed coaxially, both of the two first rotating shafts being movable along their axial directions and rotatable about their axes; Circular plates, respectively mounted on opposite ends of the two first rotating shafts and coaxially distributed with the two first rotating shafts respectively. Each circular plate includes a plurality of strip-shaped holes opened along its radial direction and evenly distributed around its center; Guide rail pairs, respectively mounted on opposite surfaces of the two circular plates and evenly distributed around the center of the circular plates. The number of the guide rail pairs is an even number greater than or equal to six. Each guide rail pair includes a first moving seat and a second moving seat moving along the radial direction of the circular plate. A plurality of the first moving seats are all closer to the center of the circular plate relative to a plurality of the second moving seats; First stepped shafts, respectively mounted on the plurality of first moving seats along the axial direction of the first rotating shaft; Second stepped shafts, respectively slidably passing through the plurality of second moving seats along the axial direction of the first rotating shaft. The plurality of second stepped shafts respectively pass through the plurality of strip-shaped holes; First driving members, respectively mounted on the two circular plates and configured to drive the plurality of first moving seats on each circular plate to move. Each first driving member includes a first nut, a first lead screw, a first spur gear, a second rotating shaft, a second spur gear, a first bevel gear, a first cylinder, and a second bevel gear. The first nuts are respectively mounted on the plurality of first moving seats. The first lead screws are respectively mounted on the plurality of first nuts and respectively pass through the plurality of second moving seats. The first spur gears are respectively mounted on the plurality of first lead screws. The second rotating shafts are rotatably mounted on the circular plates along the radial direction of the circular plates and are respectively adjacent to the plurality of first lead screws. The second spur gears are respectively mounted on the plurality of second rotating shafts and respectively mesh with the plurality of first spur gears; the first bevel gears are respectively mounted on the plurality of second rotating shafts. The first cylinder is rotatably sleeved on the first rotating shaft. The second bevel gear is mounted on the outer wall of the first cylinder and respectively meshes with the plurality of first bevel gears. Wherein, the second bevel gear is controlled to rotate so that the plurality of first moving seats move along the radial direction of the circular plate; The second driving members are respectively installed on the two circular plates and are configured to drive the multiple second moving seats adjacent to the first half and the multiple second moving seats adjacent to the second half on each circular plate to move respectively. Each second driving member includes a second nut, a second lead screw, a third spur gear, a first hollow shaft, a fourth spur gear, a fourth bevel gear, a second cylinder, a fifth bevel gear, a sixth bevel gear, a third cylinder and a seventh bevel gear. The second nuts are respectively installed on the multiple second moving seats, the second lead screws are respectively installed on the multiple second nuts and respectively pass through the multiple first moving seats, the third spur gears are respectively installed on the multiple second lead screws, the first hollow shafts are respectively rotatably sleeved on the multiple second rotating shafts, the fourth spur gears are respectively installed on the multiple first hollow shafts and respectively mesh with the multiple third spur gears, the fourth bevel gears are respectively installed on the multiple first hollow shafts opposite to the multiple second moving seats adjacent to the first half, the second cylinder is rotatably sleeved on the first cylinder, the fifth bevel gear is installed on the outer wall of the second cylinder and meshes with the multiple fourth bevel gears, the sixth bevel gears are respectively installed on the multiple first hollow shafts opposite to the multiple second moving seats adjacent to the second half, the third cylinder is rotatably sleeved on the second cylinder, the seventh bevel gear is installed on the outer wall of the third cylinder and meshes with the multiple sixth bevel gears. Wherein, the fifth bevel gear and the seventh bevel gear are controlled to rotate respectively so that the multiple second moving seats adjacent to the first half and the multiple second moving seats adjacent to the second half slide respectively; The third driving members are respectively installed on the two circular plates and are configured to drive the multiple second stepped shafts connected to the multiple second moving seats adjacent to the first half and the multiple second moving seats adjacent to the second half to slide respectively. Each third driving member includes a sector plate, an electric push rod, a moving plate, a first slider and a first guide rail. The sector plates are respectively opposite to the multiple second moving seats adjacent to the first half and the multiple second moving seats adjacent to the second half, the electric push rods are respectively installed between the two sector plates and the circular plates along the axial direction of the first rotating shaft, the moving plates are respectively connected to the multiple second stepped shafts, the first sliders are respectively connected to the multiple moving plates, the first guide rails are respectively installed on the multiple first sliders and respectively installed on the two sector plates. Under the guiding and supporting actions of the multiple first guide rails and the multiple first sliders, the multiple moving plates move along the radial direction of the circular plates; Wherein, under the driving of the first driving member and the second driving member, the first stepped shaft and the second stepped shaft installed on the same guide rail pair abut against each other; control the third driving member to work so that the multiple second stepped shafts on the two circular plates slide in the reverse direction, so that a semi-circular pipeline can be lifted and placed on the top of the multiple first stepped shafts; after the lifting and placing are completed, control the third driving member to work again so that the multiple second stepped shafts adjacent to the first half are reset.

2. The flipping device for automated welding according to claim 1, characterized in that, Each first driving member further includes: A first motor, installed on the circular plate; The third bevel gear is installed at the rotating end of the first motor and meshes with the second bevel gear.

3. An automatic welding turnover device according to claim 1, characterized in that, Each of the second driving members further includes: A second motor installed on the circular plate; An eighth bevel gear installed at the rotating end of the second motor and meshing with the fifth bevel gear.

4. An automatic welding turnover device according to claim 1, characterized in that, Each of the second driving members further includes: A third motor installed on the circular plate; A ninth bevel gear installed at the rotating end of the third motor and meshing with the seventh bevel gear.

5. An overturning device for automatic welding according to any one of claims 1 to 4, characterized in that The support frame further includes: A support plate for abutting against the bottom surface; A second guide rail installed on the support plate along the axial direction of the first rotating shaft; Second sliders installed on the second guide rail and located on both sides of the second guide rail along the axial direction of the first rotating shaft; A first moving arm installed on any one of the second sliders; A second moving arm installed on the other second slider, and the two first rotating shafts are respectively rotatably installed on the first moving arm and the second moving arm; A third nut installed on the first moving arm; A third lead screw installed on the third nut and passing through the second moving arm; A fourth nut installed on the second moving arm; A fourth lead screw installed on the fourth nut and passing through the first moving arm; A second hollow shaft is respectively rotatably passed through the first moving arm and the second moving arm along the axial direction of the first rotating shaft; Spline sleeves are respectively installed on the two second hollow shafts; Spline shafts are installed on the two spline sleeves; First belt gears are respectively installed on the two second hollow shafts; Second belt gears are respectively installed on the two first rotating shafts; Toothed belts are respectively sleeved between the two first belt gears and the two second belt gears; Wherein, the third lead screw, the fourth lead screw and the spline shaft are controlled to rotate so that the two first rotating shafts both move along their axial directions and rotate around their axes.

6. An automatic welding turnover device according to claim 5, characterized in that, The support frame further includes: A fourth motor opposite to the third lead screw, the fourth lead screw and the spline shaft respectively; Couplings are respectively installed between the third lead screw, the fourth lead screw and the spline shaft and the rotating ends of the three fourth motors.

7. An overturning device for automatic welding according to any one of claims 1 to 4, characterized in that, Each of the guide rail pairs further includes: Third sliders respectively connected to the plurality of first moving seats and the second moving seats; Third guide rails installed on the plurality of third sliders and all connected to the circular plate; Wherein, under the guiding and supporting action of the third guide rail and the third slider, the first moving seat and the second moving seat move along the radial direction of the circular plate.

Images