Thick-wall pipeline welding crater chamfering and beveling machine

Abstract

The invention discloses a chamfering and beveling machine for a welding junction of a thick-wall pipeline, and relates to the technical field of pipeline machining equipment. Comprising a machining base, supports are symmetrically and fixedly mounted at the top of the machining base, a mounting frame is slidably mounted at the end of the machining base, a first limiting groove and a second limiting groove are formed in the surface of the mounting frame, a first lead screw is rotatably mounted on the inner wall of the first limiting groove, and a second lead screw is rotatably mounted on the inner wall of the second limiting groove; a first U-shaped frame is fixedly installed at one end of the limiting block, a driving wheel is rotatably installed on the surface of the first U-shaped frame, a second limiting block is slidably connected to the inner wall of the second limiting groove in a sleeved mode, a second U-shaped frame is fixedly installed at the end of the second limiting block, and a rolling wheel is rotatably installed on the surface of the second U-shaped frame. The second lead screw is of a symmetrical structure with the first lead screw as the center, and the second lead screw and the first lead screw are in gear transmission. A groove cutter is arranged between the two second U-shaped frames. And the groove does not need to be ground manually, the grinding process is more stable, and the forming effect of the groove of the thick-wall pipeline is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline processing equipment, and in particular to a chamfering and beveling machine for welding joints of thick-walled pipelines. Background Art

[0002] Thick-walled pipelines usually refer to pipelines with relatively large wall thicknesses, which are used in aspects such as petroleum, chemical industry, and urban construction. Due to their relatively large wall thicknesses, they are under higher pressure and temperature than ordinary pipelines. When welding thick-walled pipelines, in order to enhance the connection strength after welding and improve the welding quality, it is necessary to bevel one end of the pipeline to facilitate subsequent welding by welders or automatic welding machines.

[0003] Traditional processing methods mainly rely on manual operation of angle grinders or lathes. Manual operation is time-consuming and difficult to meet the requirements of batch processing; moreover, it is difficult to ensure the consistency of the bevel angle and depth, which easily leads to welding defects.

[0004] Existing beveling machines are mostly designed for thin-walled pipelines, with insufficient clamping stability and a lack of processing equipment for thick-walled pipelines. Therefore, a chamfering and beveling machine for welding joints of thick-walled pipelines is provided to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a chamfering and beveling machine for welding joints of thick-walled pipelines, which solves the above-mentioned technical problems.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A chamfering and beveling machine for welding joints of thick-walled pipelines, including a processing base. Symmetrically and fixedly installed on the top of the processing base are supports. An arc-shaped supporting groove is recessed downward on the top of the support. An installation frame is slidably installed at the end of the processing base. A first limiting groove and a second limiting groove are provided on the surface of the installation frame. A first lead screw is rotatably installed on the inner wall of the first limiting groove. A second lead screw is rotatably installed on the inner wall of the second limiting groove. A first limiting block is slidably sleeved on the inner wall of the first limiting groove. The first limiting block is threadedly sleeved through the surface of the first lead screw. A first U-shaped frame is fixedly installed at one end of the first limiting block. A driving wheel is rotatably installed on the surface of the first U-shaped frame. A second limiting block is slidably sleeved on the inner wall of the second limiting groove. The second limiting block is threadedly sleeved through the surface of the second lead screw. A second U-shaped frame is fixedly installed at one end of the second limiting block. A roller is rotatably installed on the surface of the second U-shaped frame. The second lead screw is symmetrically structured with the first lead screw as the center, and the second lead screw is in gear transmission with the first lead screw. A bevel cutter is jointly provided between the two second U-shaped frames.

[0007] Preferably, a through groove is formed through the surface of the mounting frame, the output shaft of the driving motor 2 is fixedly mounted on one end of the lead screw 1, the driving motor 2 is fixedly mounted on the top of the mounting frame, the end of the lead screw 1 away from the driving motor 2 is fixedly mounted with a bevel gear 1, the end of the lead screw 2 is fixedly mounted with a bevel gear 2, and the bevel gear 1 is meshed with the bevel gear 2 for transmission.

[0008] Preferably, sliding rods are extended and fixedly installed on the two side walls of the U-shaped frame, and slots are opened through the two side walls of the U-shaped frame. The two sliding rods are jointly limited and slidably sleeved with an adjustment seat, one of the sliding rods is slidably inserted into the inner wall of the slot of the other side wall of the sliding rod, and a brushless motor is fixedly installed on the end of the adjustment seat, and the output shaft of the brushless motor is fixedly connected to the bevel cutter.

[0009] Preferably, a T-shaped slot is concavely opened on the top of the processing seat, a screw rod is rotatably installed on the inner wall of the T-shaped slot, an output shaft of a driving motor is fixedly installed on the end of the screw rod, the driving motor is fixedly installed on the surface of the processing seat, a T-shaped block is threadedly sleeved on the surface of the screw rod, and the top of the T-shaped block is fixedly installed on the bottom of the mounting frame.

[0010] Preferably, a collecting plate is fixedly mounted on the bottom of one side of the mounting frame close to the limiting groove, and the collecting plate is located above the T-shaped groove.

[0011] Preferably, a rotating shaft is installed between the two supports for common rotation, the end of the rotating shaft is connected to a hydraulic rod for transmission, a support plate is fixedly sleeved on the surface of the rotating shaft, a track groove is concavely opened on the surface of the arc-shaped bracket, a limiting rod is fixedly installed on the inner wall of the track groove, a sliding block is slidably sleeved on the surface of the limiting rod, a blocking rod is fixedly installed on the top of the sliding block, an elastic part is fixedly installed on the surface of the sliding block, and the elastic part is sleeved on the surface of the limiting rod.

[0012] Preferably, a motor is fixedly mounted on one surface of the U-shaped frame, and an output shaft of the motor is directly connected to a driving wheel to drive the driving wheel to rotate.

[0013] Preferably, the driving wheel and the roller surface are both fixedly sleeved with rubber pads.

[0014] Compared with the related art, the thick-walled pipe welding weld chamfering machine provided by the present invention has the following beneficial effects:

[0015] The present invention provides a chamfering and beveling machine for welding joints of thick-walled pipes. By placing the thick-walled pipe on the top of the arc-shaped support groove, after the thick-walled pipe is stationary, the sliding mounting frame is moved to the thick-walled pipe at the top of the processing seat. The lead screw one is rotated, and the limiting block one is limited and slides on the inner wall of the limiting groove one, driving the driving wheel to move downward to fit against the inner wall of the thick-walled pipe. At the same time, through the gear transmission between the lead screw one and the lead screw two, and the limiting block two is limited and slides on the inner wall of the limiting groove two, driving the two rollers to tilt upward and move to fit against the outer wall of the thick-walled pipe. The driving wheel and the two rollers are used to clamp the thick-walled pipe, and the bevel cutter is used to grind the bevel of the thick-walled pipe, so as to carry out subsequent welding operations. There is no need for manual bevel grinding, and the grinding process is more stable, improving the forming effect of the bevel of the thick-walled pipe.

[0016] The present invention provides a chamfering and beveling machine for welding joints of thick-walled pipes. When the two U-shaped frames two approach or move away from each other, they drive the two sliding rods to slide on the surface of the adjusting seat, thereby driving the bevel cutter and the rollers to lift or lower synchronously. Thus, when the driving wheel and the rollers clamp the thick-walled pipe, the bevel cutter can be adjusted to the removal end for bevel processing at the same time, and the bevel cutter is driven by a brushless motor to rotate to cut the bevel of the thick-walled pipe, which can effectively improve the pipe processing efficiency, and has a simple structure, reduces energy consumption, and lowers the processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a schematic diagram of the collecting plate structure of the present invention;

[0019] Figure 3 is a schematic diagram of the mounting plate structure of the present invention;

[0020] Figure 4 is of the present invention Figure 3 enlarged view of the structure at A in;

[0021] Figure 5 is a cross-sectional view of the T-shaped block structure of the present invention;

[0022] Figure 6 is a schematic diagram of the roller structure of the present invention;

[0023] Figure 7 is a schematic diagram of the adjusting seat structure of the present invention.

[0024] In the figure: 1. Processing seat, 11. Support, 12. Pallet, 13. Arc-shaped bracket, 14. Trajectory groove, 15. Slide block, 16. Stop rod, 17. Limit rod, 18. Elastic member, 19. Rotating shaft, 2. First driving motor, 21. T-shaped groove, 22. Mounting frame, 23. First limit groove, 24. Second driving motor, 25. First limit block, 26. First U-shaped frame, 27. Driving wheel, 28. Groove cutter, 29. Collection plate, 3. Second U-shaped frame, 31. Slot, 32. Slide rod, 33. Roller, 34. Second limit block, 35. T-shaped block, 36. First lead screw, 37. Second limit groove, 38. Second lead screw, 39. Through groove, 4. First helical tooth, 41. Second helical tooth, 42. Brushless motor, 43. Adjusting seat. Specific implementation mode

[0025] Please refer to Figures 1 - 7 The present invention provides a technical solution, including a processing seat 1. Supports 11 are symmetrically and fixedly installed on the top of the processing seat 1. An arc-shaped bracket 13 is recessed downward on the top of the support 11. A mounting frame 22 is slidably installed at the end of the processing seat 1. A first limit groove 23 and a second limit groove 37 are provided on the surface of the mounting frame 22. A first lead screw 36 is rotatably installed on the inner wall of the first limit groove 23. A second lead screw 38 is rotatably installed on the inner wall of the second limit groove 37. A first limit block 25 is slidably sleeved on the inner wall of the first limit groove 23. The first limit block 25 is threadedly sleeved through the surface of the first lead screw 36. A first U-shaped frame 26 is fixedly installed at the end of the first limit block 25. A driving wheel 27 is rotatably installed on the surface of the first U-shaped frame 26. A second limit block 34 is slidably sleeved on the inner wall of the second limit groove 37. The second limit block 34 is threadedly sleeved through the surface of the second lead screw 38. A second U-shaped frame 3 is fixedly installed at the end of the second limit block 34. A roller 33 is rotatably installed on the surface of the second U-shaped frame 3. The second lead screw 38 is symmetrically structured with the first lead screw 36 as the center. The second lead screw 38 is in gear transmission with the first lead screw 36. A groove cutter 28 is jointly arranged between the two second U-shaped frames 3;

[0026] By placing the thick-walled pipe on the top of the arc-shaped bracket 13, after the thick-walled pipe is stationary, slide the mounting frame 22 on the top of the processing seat 1 to the position of the thick-walled pipe. Rotate the first lead screw 36, and through the limited sliding of the first limit block 25 on the inner wall of the first limit groove 23, drive the driving wheel 27 to move downward to fit the inner wall of the thick-walled pipe. At the same time, through the gear transmission between the first lead screw 36 and the second lead screw 38, and the limited sliding of the second limit block 34 on the inner wall of the second limit groove 37, drive the two rollers 33 to move obliquely upward to fit the outer wall of the thick-walled pipe. Clamp the thick-walled pipe by the driving wheel 27 and the two rollers 33, and use the groove cutter 28 to grind the groove of the thick-walled pipe, so as to perform subsequent welding operations. There is no need for manual grinding of the groove, and the grinding process is more stable, improving the forming effect of the groove of the thick-walled pipe.

[0027] The surface of the mounting frame 22 is penetrated with a through groove 39. One end of the first lead screw 36 is fixedly installed with the output shaft of the second driving motor 24, and the second driving motor 24 is fixedly installed on the top of the mounting frame 22. The end of the first lead screw 36 away from the second driving motor 24 is fixedly installed with a first helical gear 4. The end of the second lead screw 38 is fixedly installed with a second helical gear 41, and the first helical gear 4 and the second helical gear 41 are meshed and driven;

[0028] By driving the first lead screw 36 to rotate through the second driving motor 24, the rotation of the first lead screw 36 drives the first helical gear 4 to rotate. Through the meshing drive between the first helical gear 4 and the two symmetrically structured second helical gears 41, the two second lead screws 38 are driven to rotate, and the helical lines on the surfaces of the two second lead screws 38 are adaptively adjusted, so as to ensure that the two second limit blocks 34 can approach or move away from each other to realize the clamping of the thick-walled pipe.

[0029] The side wall of the second U-shaped frame 3 extends and is fixedly installed with a sliding rod 32. The side wall of the second U-shaped frame 3 is penetrated with a slot 31. The two sliding rods 32 are jointly and slidably sleeved with an adjusting seat 43 in a limiting manner. One of the sliding rods 32 is slidably inserted into the inner wall of the slot 31 on the side wall of the other sliding rod 32. The end of the adjusting seat 43 is fixedly installed with a brushless motor 42, and the output shaft of the brushless motor 42 is fixedly connected with the bevel cutter 28;

[0030] When the two second U-shaped frames 3 approach or move away from each other, they drive the two sliding rods 32 to slide on the surface of the adjusting seat 43, so as to drive the bevel cutter 28 and the roller 33 to lift or lower synchronously. Thus, when the driving wheel 27 and the roller 33 clamp the thick-walled pipe, the bevel cutter 28 can be adjusted to the removal end for beveling treatment at the same time, and the brushless motor 42 drives the bevel cutter 28 to rotate to cut the bevel of the thick-walled pipe, which can effectively improve the pipe processing efficiency, and has a simple structure, reduces energy consumption and lowers the processing cost.

[0031] The top of the processing seat 1 is concavely provided with a T-shaped groove 21. The inner wall of the T-shaped groove 21 is rotatably installed with a lead screw. The end of the lead screw is fixedly installed with the output shaft of the first driving motor 2, and the first driving motor 2 is fixedly installed on the surface of the processing seat 1. The surface of the lead screw is threadedly sleeved with a T-shaped block 35, and the top of the T-shaped block 35 is fixedly installed at the bottom of the mounting frame 22;

[0032] By driving the lead screw to rotate through the first driving motor 2, and driving the mounting frame 22 to move horizontally by the limiting sliding of the T-shaped block 35 on the inner wall of the T-shaped groove 21, the adaptive adjustment can be carried out according to the position of the thick-walled pipe, which is more convenient for the driving wheel 27 and the roller 33 to clamp the thick-walled pipe.

[0033] A collecting plate 29 is fixedly installed at the bottom of the mounting frame 22 close to one side of the first limiting groove 23, and the collecting plate 29 is located above the T-shaped groove 21;

[0034] When the bevel cutter 28 processes the bevel of the thick-walled pipe, the generated debris falls onto the surface of the collection plate 29 by gravity, while preventing the debris from falling into the T-shaped groove 21 and affecting the movement of the mounting bracket 22, enabling the debris generated during the processing to be recycled.

[0035] A rotating shaft 19 is rotatably installed between two supports 11. The end of the rotating shaft 19 is drivingly connected to a hydraulic rod. A support plate 12 is fixedly sleeved on the surface of the rotating shaft 19. A track groove 14 is recessed on the surface of the arc-shaped support groove 13. A limiting rod 17 is fixedly installed on the inner wall of the track groove 14. A sliding block 15 is slidably sleeved on the surface of the limiting rod 17. A blocking rod 16 is fixedly installed on the top of the sliding block 15. An elastic member 18 is fixedly installed on the surface of the sliding block 15. The elastic member 18 is sleeved on the surface of the limiting rod 17.

[0036] Place the thick-walled pipe to be processed on the surface of the support plate 12. Then, drive the support plate 12 to rotate around the rotating shaft 19 through the hydraulic rod, so as to move the thick-walled pipe to the top of the arc-shaped support groove 13. During the process, the blocking rod 16 first contacts the thick-walled pipe. When the thick-walled pipe rolls towards the arc-shaped support groove 13 under the influence of gravity, the blocking rod 16 first contacts the thick-walled pipe, causing the sliding block 15 to slide on the surface of the limiting rod 17 and squeezing the elastic member 18 to contract and store energy, thereby slowing down the rolling speed of the thick-walled pipe, and preventing the thick-walled pipe from falling off the arc-shaped support groove 13 and causing accidents due to the limitation of the blocking rod 16.

[0037] A motor is fixedly installed on the surface of the U-shaped frame 1 26. The output shaft of the motor is directly connected to the driving wheel 27 to drive the driving wheel 27 to rotate.

[0038] Driven by the motor, the driving wheel 27 rotates. When the driving wheel 27 and the roller 33 clamp the thick-walled pipe, due to the rotation of the driving wheel 27, the thick-walled pipe is kept stable and rotates at the same time, so as to facilitate the bevel cutter 28 to process the bevel of the thick-walled pipe.

[0039] Rubber pads are fixedly sleeved on the surfaces of the driving wheel 27 and the roller 33.

[0040] This greatly increases the friction force between the driving wheel 27 and the roller 33 on the thick-walled pipe, which is beneficial to clamping the thick-walled pipe and improving the driving force of the driving wheel 27 on the thick-walled pipe.

Claims

1. A chamfering and beveling machine for welding joints of thick-walled pipes, comprising a processing seat (1), characterized in that: On the top of the processing base (1), supports (11) are symmetrically and fixedly installed. An arc-shaped supporting groove (13) is recessed downward on the top of the support (11). An installation frame (22) is slidably installed at the end of the processing base (1). A first limiting groove (23) and a second limiting groove (37) are formed on the surface of the installation frame (22). A first lead screw (36) is rotatably installed on the inner wall of the first limiting groove (23). A second lead screw (38) is rotatably installed on the inner wall of the second limiting groove (37). A first limiting block (25) is slidably sleeved on the inner wall of the first limiting groove (23). The first limiting block (25) is threadedly sleeved on the surface of the first lead screw (36). A first U-shaped frame (26) is fixedly installed at the end of the first limiting block (25). A driving wheel (27) is rotatably installed on the surface of the first U-shaped frame (26). A second limiting block (34) is slidably sleeved on the inner wall of the second limiting groove (37). The second limiting block (34) is threadedly sleeved on the surface of the second lead screw (38). A second U-shaped frame (3) is fixedly installed at the end of the second limiting block (34). A roller (33) is rotatably installed on the surface of the second U-shaped frame (3). The second lead screw (38) is symmetrically structured with the first lead screw (36) as the center. The second lead screw (38) and the first lead screw (36) are in gear transmission. A groove cutting tool (28) is jointly arranged between the two second U-shaped frames (3).

2. The chamfering and beveling machine for the welding joint of a thick-walled pipe according to claim 1, wherein: A through groove (39) is formed through the surface of the installation frame (22). One end of the first lead screw (36) is fixedly installed with the output shaft of a second driving motor (24). The second driving motor (24) is fixedly installed on the top of the installation frame (22). An inclined tooth one (4) is fixedly installed at the end of the first lead screw (36) away from the second driving motor (24). An inclined tooth two (41) is fixedly installed at the end of the second lead screw (38). The inclined tooth one (4) and the inclined tooth two (41) are in meshing transmission.

3. The chamfering and beveling machine for the welding joint of a thick-walled pipe according to claim 2, wherein: A sliding rod (32) is fixedly installed by extending the side wall of the second U-shaped frame (3). A slot (31) is formed through the side wall of the second U-shaped frame (3). An adjusting seat (43) is jointly and slidably sleeved on the two sliding rods (32). One of the sliding rods (32) is slidably inserted into the inner wall of the slot (31) on the side wall of the other sliding rod (32). A brushless motor (42) is fixedly installed at the end of the adjusting seat (43). The output shaft of the brushless motor (42) is fixedly connected to the groove cutting tool (28).

4. A chamfering and beveling machine for welding joints of thick-walled pipes according to claim 3, characterized in that: A T-shaped groove (21) is recessed inward on the top of the processing base (1). A lead screw is rotatably installed on the inner wall of the T-shaped groove (21). The end of the lead screw is fixedly installed with the output shaft of a first driving motor (2). The first driving motor (2) is fixedly installed on the surface of the processing base (1). A T-shaped block (35) is threadedly sleeved on the surface of the lead screw. The top of the T-shaped block (35) is fixedly installed at the bottom of the installation frame (22).

5. A chamfering and beveling machine for welding joints of thick-walled pipes according to claim 4, characterized in that: A collecting plate (29) is fixedly installed at the bottom on one side of the installation frame (22) close to the first limiting groove (23). The collecting plate (29) is located above the T-shaped groove (21).

6. The chamfering and beveling machine for welding joints of thick-walled pipes according to claim 5, wherein: A rotating shaft (19) is rotatably installed between the two supports (11). The end of the rotating shaft (19) is drivingly connected to a hydraulic rod. A support plate (12) is fixedly sleeved on the surface of the rotating shaft (19). A track groove (14) is recessed on the surface of the arc-shaped support groove (13). A limiting rod (17) is fixedly installed on the inner wall of the track groove (14). A slider (15) is slidably sleeved on the surface of the limiting rod (17). A blocking rod (16) is fixedly installed on the top of the slider (15). An elastic member (18) is fixedly installed on the surface of the slider (15), and the elastic member (18) is sleeved on the surface of the limiting rod (17).

7. A chamfering and beveling machine for welding joints of thick-walled pipes according to claim 6, characterized in that: A motor is fixedly installed on the surface of the U-shaped frame one (26), and the output shaft of the motor is directly connected to the driving wheel (27) to drive the driving wheel (27) to rotate.

8. A chamfering and beveling machine for welding joints of thick-walled pipes according to claim 7, characterized in that: Rubber pads are fixedly sleeved on the surfaces of the driving wheel (27) and the roller (33).

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