Welding positioner for wind power steel pipe

Abstract

The utility model relates to the technical field of position changing machines, and discloses a welding position changing machine for wind power steel pipes, the welding position changing machine comprises a rack, a supporting frame is arranged above the rack, and the upper surface of the supporting frame is rotationally connected with a reduction gear. According to the welding positioner for the wind power steel pipe, the driving gear and the reduction gear which are meshed with each other and have a certain size difference are arranged, so that the positioner is promoted to drive a workpiece to rotate slowly, workers are prevented from frequently adjusting the welding position, welding operation of the workers is facilitated, and the welding efficiency is improved; by arranging the positioning plate, the sliding rod is driven to drive the positioning plate to move forwards, then the workpiece can be completely positioned conveniently, six degrees of freedom of the workpiece in the space are eliminated, and the stability of the workpiece in the rotating process is improved, and by arranging the lifting air cylinder, the height of the displacement table can be adjusted according to needs; the problems that during existing wind power steel pipe welding operation, workers need to frequently adjust the welding position, labor is wasted, and welding production efficiency is low are solved.

Description

Technical Field

[0001] This application relates to the technical field of positioners, and specifically to a welding positioner for wind power steel pipes. Background Art

[0002] A positioner is a special welding auxiliary equipment, suitable for the welding position change of rotary workpieces, in order to obtain an ideal processing position and welding speed. It can be used in combination with an operating machine and a welding machine to form an automatic welding center, or can also be used for workpiece position change during manual operations. A welding positioner generally consists of a workbench rotation mechanism and a flipping mechanism. Through the lifting, flipping, and rotation of the workbench, the workpiece fixed on the workbench can reach the required welding and assembly angles.

[0003] Steel pipes for wind power generally go through a series of processes such as forming - welding - straightening - heat treatment. When performing circumferential seam welding on a hollow steel pipe in multiple directions, the welding process is as follows: after a welder welds a section of the circumferential weld at one position, they then carry the corresponding welding equipment and move to the next position to weld the next section of the circumferential weld. This welding form results in a relatively high labor intensity for the welder, a relatively low welding production efficiency, and is not suitable for batch welding production of a large number of workpieces. Utility Model Content

[0004] In view of the deficiencies of the prior art, this application provides a welding positioner for wind power steel pipes, which has the advantages of being able to drive the workpiece to rotate slowly and stably, avoiding frequent manual adjustment of the welding position, facilitating the welder to carry out welding operations, improving welding efficiency, and at the same time facilitating six-point positioning of the workpiece, improving the stability of the workpiece during the welding operation, etc., and solves the problem that during the existing wind power steel pipe welding operation, the welder needs to frequently adjust the welding position, resulting in a relatively high labor intensity for the welder, a relatively low welding production efficiency, and not being suitable for batch welding production of a large number of workpieces.

[0005] To achieve the above object, this application provides the following technical solution: A welding positioner for wind power steel pipes, including a frame. Above the frame, there is a support frame. The upper surface of the support frame is rotatably connected to a reduction gear. The upper surface of the reduction gear is fixedly connected to a position change table. The upper surface of the position change table is fixedly connected to four second vertical plates. At the top of each second vertical plate, four sliding rods are fixedly inserted. One end of the four sliding rods is fixedly connected to a positioning plate, and the other end of the four sliding rods is fixedly connected to a fixing plate. Inside each second vertical plate, a lead screw is rotatably inserted. The outer circumferential surface of the lead screw is threadedly connected to the inside of the fixing plate. The bottom surface of the support frame is fixedly connected to a first motor. The top of the first motor is rotatably connected to a driving gear through an output shaft. The reduction gear meshes with the driving gear.

[0006] Through the above solution, since workers need to frequently adjust the welding position during the existing wind power steel pipe welding operation, the labor intensity of the welding workers is relatively high, and the welding production efficiency is relatively low, which is not suitable for batch welding production of a large number of workpieces. By setting an active gear and a reduction gear that mesh with each other and have a certain size difference, the indexing table is prompted to drive the workpiece to rotate slowly, avoiding the need for workers to frequently adjust the welding position, facilitating the welding operation of the workers, and improving the welding efficiency. By rotating the lead screw to drive the fixed plate to move forward, the slide bar is prompted to drive the positioning plate to move forward, thereby facilitating the complete positioning of the workpiece, eliminating the six degrees of freedom of the workpiece in space, and improving the stability of the workpiece during rotation. By setting the lifting cylinder, the height of the indexing table can be adjusted as needed.

[0007] Further, two lifting cylinders are fixedly connected inside the support frame, and the two lifting cylinders are arranged diagonally.

[0008] Through the above solution, the indexing table can be lifted or lowered by the lifting cylinder as needed, improving the flexibility and practicality of the indexing machine.

[0009] Further, four first vertical plates are fixedly connected to the upper surface of the indexing table, and the first vertical plates and the second vertical plates are symmetrically distributed respectively.

[0010] Through the above solution, the workpiece is positioned by the positioning plates at the tops of the first vertical plates and the second vertical plates, eliminating the six degrees of freedom of the workpiece in space and improving the stability of the workpiece during the operation.

[0011] Further, triangular reinforcing plates are fixedly connected to the backs of the first vertical plates and the second vertical plates.

[0012] Through the above solution, the first vertical plates and the second vertical plates are supported and reinforced by the reinforcing plates respectively, improving the support strength of the first vertical plates and the second vertical plates, and further improving the stability of the positioned workpiece during the operation.

[0013] Further, the size of the reduction gear is larger than that of the active gear.

[0014] Through the above solution, reduction drive is achieved through the gear difference between the reduction gear and the active gear, prompting the indexing table to drive the workpiece to rotate slowly, improving the stability of the workpiece, and at the same time assisting the workers in welding operations and avoiding the need for workers to frequently adjust the welding position.

[0015] Further, support shafts are fixedly connected to both sides of the support frame, and the outer circumferential surfaces of each support shaft are rotatably connected to the top of the machine frame. A second motor is provided on one side of one of the support shafts.

[0016] Through the above solution, the support frame is supported by the support shaft, and the second motor provides power for the support shaft. The second motor can be started to drive the support shaft to rotate, so as to adjust the support frame by a certain angle as needed.

[0017] Furthermore, two positioning cylinders are fixedly connected to the upper surface of the frame. A plurality of positioning holes arranged at equal intervals are formed inside the support frame, and the output ends of the positioning cylinders are slidably inserted into the support frame through the positioning holes.

[0018] Through the above solution, the output end of the positioning cylinder can be driven to insert into the positioning hole to position and reinforce the support frame, improve the stability of the support frame, and further improve the overall stability of the positioner.

[0019] Furthermore, six supporting feet are fixedly connected to the bottom surface of the frame, and eight supporting plates are fixedly connected to the bottom of the frame.

[0020] Through the above solution, the frame is supported by the supporting feet and reinforced by the supporting plates, improving the overall stability of the positioner.

[0021] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0022] For this welding positioner for wind power steel pipes, by setting the driving gear and the reduction gear that mesh with each other and have a certain size difference, the turntable is driven to drive the workpiece to rotate slowly, avoiding frequent adjustment of the welding position by workers, facilitating the welding operation of workers, and improving the welding efficiency. By rotating the screw rod to drive the fixed plate to move forward, the sliding rod is driven to drive the positioning plate to move forward, thereby facilitating the complete positioning of the workpiece, eliminating the six degrees of freedom of the workpiece in space, and improving the stability during the rotation of the workpiece. By setting the lifting cylinder, the height of the turntable can be adjusted as needed, solving the problem that workers need to frequently adjust the welding position during the existing wind power steel pipe welding operation, which is relatively laborious and the welding production efficiency is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the overall front view structure diagram of the present application;

[0024] Figure 2 It is the structure diagram of the frame of the present application;

[0025] Figure 3 It is the structure diagram of the support frame of the present application;

[0026] Figure 4 It is the structure diagram of the second vertical plate of the present application.

[0027] In the figure:

[0028] 1. Frame; 2. Support frame; 3. Reduction gear; 4. Indexing table; 5. First vertical plate; 6. Second vertical plate; 7. Slide bar; 8. Positioning plate; 9. Fixed plate; 10. Lead screw; 11. First motor; 12. Driving gear; 13. Lifting cylinder; 14. Support shaft; 15. Second motor; 16. Positioning cylinder; 17. Positioning hole; 18. Foot; 19. Support plate. Detailed implementation manner

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] Please refer to Figure 2 , Figure 3 and Figure 4 A welding indexing machine for a wind power steel pipe in this embodiment includes a frame 1. A support frame 2 is provided above the frame 1. The upper surface of the support frame 2 is rotatably connected to a reduction gear 3. The upper surface of the reduction gear 3 is fixedly connected to an indexing table 4. Four second vertical plates 6 are fixedly connected to the upper surface of the indexing table 4. Four slide bars 7 are fixedly inserted into the top end of each second vertical plate 6. One end of the four slide bars 7 is fixedly connected to a positioning plate 8, and the other end of the four slide bars 7 is fixedly connected to a fixed plate 9. A lead screw 10 is rotatably inserted into the interior of each second vertical plate 6. The outer circumferential surface of the lead screw 10 is threadedly connected to the interior of the fixed plate 9. The bottom surface of the support frame 2 is fixedly connected to a first motor 11. The top end of the first motor 11 is rotatably connected to a driving gear 12 through an output shaft. The reduction gear 3 meshes with the driving gear 12.

[0031] Please refer to Figure 1 and Figure 3 Two lifting cylinders 13 are fixedly connected to the interior of the support frame 2. The two lifting cylinders 13 are arranged diagonally. The indexing table 4 can be lifted by the lifting cylinders 13 as needed, improving the flexibility and practicality of the indexing machine.

[0032] Please refer to Figure 1 and Figure 2 Four first vertical plates 5 are fixedly connected to the upper surface of the indexing table 4. The first vertical plates 5 and the second vertical plates 6 are symmetrically distributed. The workpiece is positioned by the positioning plates 8 at the top ends of the first vertical plates 5 and the second vertical plates 6, eliminating the six degrees of freedom of the workpiece in space and improving the stability of the workpiece during the operation process.

[0033] Please refer to Figure 1 and Figure 2, triangular reinforcing plates are fixedly connected to the backs of the first vertical plate 5 and the second vertical plate 6 respectively. The first vertical plate 5 and the second vertical plate 6 are supported and reinforced by the reinforcing plates respectively, so as to improve the support strength of the first vertical plate 5 and the second vertical plate 6, and further improve the stability during the operation of the positioned workpiece.

[0034] Please refer to Figure 1 and Figure 3 , the size of the reduction gear 3 is larger than that of the driving gear 12. The reduction transmission is realized through the gear difference between the reduction gear 3 and the driving gear 12, so as to prompt the indexing table 4 to drive the workpiece to rotate slowly, improve the stability of the workpiece, and at the same time assist the worker in welding operations to avoid the worker from frequently adjusting the welding position.

[0035] Please refer to Figure 2 and Figure 3 , support shafts 14 are fixedly connected to both sides of the support frame 2. The outer circumferential surfaces of each support shaft 14 are rotatably connected to the top end of the frame 1. A second motor 15 is provided on one side of one of the support shafts 14. The support frame 2 is supported by the support shafts 14, and the second motor 15 provides power for the support shafts 14. The second motor 15 can be started to drive the support shafts 14 to rotate, so as to adjust the support frame 2 by a certain angle as needed.

[0036] Please refer to Figure 2 and Figure 3 , two positioning cylinders 16 are fixedly connected to the upper surface of the frame 1. Equally spaced positioning holes 17 are formed in the interior of the support frame 2. The output ends of the positioning cylinders 16 are slidably inserted into the support frame 2 through the positioning holes 17. The output ends of the positioning cylinders 16 can be driven to insert into the positioning holes 17 to position and reinforce the support frame 2, improve the stability of the support frame 2, and further improve the overall stability of the indexing machine.

[0037] Please refer to Figure 1 and Figure 2 , six supporting feet 18 are fixedly connected to the bottom surface of the frame 1, and eight support plates 19 are fixedly connected to the bottom of the frame 1. The frame 1 is supported by the supporting feet 18 and reinforced by the support plates 19 to improve the overall stability of the indexing machine.

[0038] A welding positioner for a wind power steel pipe in this embodiment drives the workpiece to rotate slowly by arranging a driving gear 12 and a reduction gear 3 that mesh with each other and have a certain size difference, avoiding frequent adjustment of the welding position by workers, facilitating the welding operation of workers, and improving the welding efficiency. By rotating the lead screw 10 to drive the fixed plate 9 to move forward, the sliding rod 7 drives the positioning plate 8 to move forward, thereby facilitating the complete positioning of the workpiece, eliminating the six degrees of freedom of the workpiece in space, and improving the stability of the workpiece during rotation. By arranging a lifting cylinder 13, the height of the turntable 4 can be adjusted as needed, solving the problems that workers need to frequently adjust the welding position during the existing wind power steel pipe welding operation, which is relatively laborious and the welding production efficiency is low.

[0039] It should be noted that the positioning holes 17 are distributed in an arc shape.

[0040] The working principle of the above embodiment is as follows:

[0041] When welding operation of the steel pipe is required, place the workpiece in the center on the turntable 4 and press the workpiece against the first vertical plate 5. Then rotate the lead screw 10 to drive the fixed plate 9 to move forward. The fixed plate 9 drives the positioning plate 8 to move forward through the sliding rod 7. Position the workpiece through the positioning plate 8 and the first vertical plate 5, eliminate the six degrees of freedom of the workpiece in space, improve the stability of the workpiece during the welding operation, and ensure the quality of the welding operation. During the welding operation, the first motor 11 can be started to drive the driving gear 12 to rotate. The driving gear 12 drives the reduction gear 3 to rotate. The reduction drive is realized through the gear difference between the reduction gear 3 and the driving gear 12, so as to drive the turntable 4 to drive the workpiece to rotate slowly, thereby improving the stability of the workpiece during rotation. Workers can always keep their positions unchanged for welding operation, avoid frequent adjustment of the welding position, reduce the operation burden, and improve the operation efficiency. The turntable 4 can be lifted or lowered through the lifting cylinder 13 as needed. The second motor 15 can be started to drive the support shaft 14 to rotate, and then the support frame 2 can be adjusted at a certain angle as needed. Before adjusting the angle of the support frame 2, the positioning cylinder 16 needs to be started to drive its output end to move out of the positioning hole 17. After the angle adjustment of the support frame 2 is completed, start the positioning cylinder 16 to drive its output end to insert into the positioning hole 17 to position and reinforce the support frame 2.

[0042] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0043] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A welding positioner for a wind power steel pipe, comprising a frame (1), characterized in that: Above the frame (1), there is a support frame (2). The upper surface of the support frame (2) is rotatably connected to a reduction gear (3). The upper surface of the reduction gear (3) is fixedly connected to a displacement table (4). The upper surface of the displacement table (4) is fixedly connected to four second vertical plates (6). At the top of each second vertical plate (6), four sliding rods (7) are fixedly inserted. One end of the four sliding rods (7) is fixedly connected to a positioning plate (8), and the other end of the four sliding rods (7) is fixedly connected to a fixing plate (9). Inside each second vertical plate (6), a lead screw (10) is rotatably inserted. The outer circumferential surface of the lead screw (10) is threadedly connected to the inside of the fixing plate (9). The bottom surface of the support frame (2) is fixedly connected to a first motor (11). The top of the first motor (11) is rotatably connected to a driving gear (12) through an output shaft. The reduction gear (3) meshes with the driving gear (12).

2. The welding positioner for wind power steel pipes according to claim 1, characterized in that: Inside the support frame (2), two lifting cylinders (13) are fixedly connected. The two lifting cylinders (13) are arranged diagonally.

3. A welding positioner for wind power steel pipes according to claim 1, characterized in that: On the upper surface of the displacement table (4), four first vertical plates (5) are fixedly connected. The first vertical plates (5) and the second vertical plates (6) are symmetrically distributed.

4. The welding positioner for a wind power steel pipe according to claim 3, wherein: On the back of the first vertical plate (5) and the second vertical plate (6), triangular reinforcing plates are fixedly connected.

5. A welding positioner for wind power steel pipes according to claim 1, characterized in that: The size of the reduction gear (3) is larger than the size of the driving gear (12).

6. The welding positioner for wind power steel pipes according to claim 1, characterized in that: On both sides of the support frame (2), support shafts (14) are fixedly connected. The outer circumferential surface of each support shaft (14) is rotatably connected to the top of the frame (1). On one side of one of the support shafts (14), there is a second motor (15).

7. A welding positioner for wind power steel pipes according to claim 1, characterized in that: On the upper surface of the frame (1), two positioning cylinders (16) are fixedly connected. Inside the support frame (2), equidistantly arranged positioning holes (17) are formed. The output end of the positioning cylinder (16) is slidably inserted into the support frame (2) through the positioning hole (17).

8. A welding positioner for wind power steel pipes according to claim 1, characterized in that: On the bottom surface of the frame (1), six feet (18) are fixedly connected. On the bottom of the frame (1), eight support plates (19) are fixedly connected.

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