A machine for beveling and chamfering weld joints of thick-walled pipes

Abstract

This invention discloses a beveling and chamfering machine for welded joints of thick-walled pipes, relating to the technical field of pipe processing equipment. It includes a processing base with supports symmetrically fixedly mounted on its top and mounting frames slidably mounted on its ends. The mounting frames have two limiting grooves on their surfaces. A lead screw is rotatably mounted on the inner wall of the first limiting groove, and a lead screw is rotatably mounted on the inner wall of the second limiting groove. A limiting block is slidably fitted onto the inner wall of the first limiting groove, and a U-shaped frame is fixedly mounted on the end of the first limiting block. A drive wheel is rotatably mounted on the surface of the first U-shaped frame. A limiting block is slidably fitted onto the inner wall of the second limiting groove, and a U-shaped frame is fixedly mounted on the end of the second limiting block. A roller is rotatably mounted on the surface of the second U-shaped frame. The lead screw is symmetrically structured around the lead screw, and gear transmission exists between the lead screw and the lead screw. A beveling cutter is provided between the two U-shaped frames. This eliminates the need for manual beveling, and the beveling process is more stable, improving the beveling effect for thick-walled pipes.

Description

Technical Field

[0001] This invention relates to the field of pipeline processing equipment technology, and in particular to a machine for beveling and chamfering weld joints of thick-walled pipelines. Background Technology

[0002] Thick-walled pipes typically refer to pipes with larger wall thicknesses. They are used in petroleum, chemical, and urban construction industries. Due to their larger wall thickness, they operate under higher pressure and higher temperature than ordinary pipes. When welding thick-walled pipes, in order to enhance the connection strength and improve the welding quality, it is necessary to bevel one end of the pipe 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 needs of batch processing. Furthermore, it is difficult to guarantee the consistency of bevel angle and depth, which can easily lead to welding defects.

[0004] Existing beveling machines are mostly designed for thin-walled pipes, and lack sufficient clamping stability. There is a lack of processing equipment for thick-walled pipes. Therefore, a beveling machine for opening chamfers at weld joints of thick-walled pipes is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a beveling machine for welding joints of thick-walled pipes, which solves the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a machine for chamfering and beveling weld joints of thick-walled pipes, comprising a processing base, a support symmetrically fixedly mounted on the top of the processing base, an arc-shaped groove recessed downwards on the top of the support, a mounting frame slidably mounted on the end of the processing base, a limiting groove one and a limiting groove two formed on the surface of the mounting frame, a lead screw one rotatably mounted on the inner wall of the limiting groove one, a lead screw two rotatably mounted on the inner wall of the limiting groove two, and a limiting block one slidably sleeved on the inner wall of the limiting groove one. A through-threaded sleeve is fitted onto the surface of a lead screw. A U-shaped frame is fixedly installed at the end of the first limiting block. A drive wheel is rotatably installed on the surface of the first U-shaped frame. A second limiting block is slidably fitted onto the inner wall of the second limiting groove. The second limiting block is threaded onto the surface of the second lead screw. A second U-shaped frame is fixedly installed at the end of the second limiting block. A roller is rotatably installed on the surface of the second U-shaped frame. The second lead screw has a symmetrical structure with the first lead screw as the center. The second lead screw and the first lead screw are driven by gears. A bevel cutter is provided between the two second U-shaped frames.

[0007] Preferably, a through groove is formed on the surface of the mounting bracket, the output shaft of the second drive motor is fixedly mounted on one end of the lead screw, the second drive motor is fixedly mounted on the top of the mounting bracket, a helical tooth is fixedly mounted on the end of the lead screw away from the second drive motor, and a helical tooth is fixedly mounted on the end of the second lead screw, the helical tooth and the helical tooth mesh and transmit power.

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

[0009] Preferably, the top of the processing seat has a T-slot recessed inward, a lead screw is rotatably mounted on the inner wall of the T-slot, the output shaft of a drive motor is fixedly mounted at the end of the lead screw, the drive motor is fixedly mounted on the surface of the processing seat, and a T-block is threaded onto the surface of the lead screw, the top of the T-block is fixedly mounted on the bottom of the mounting frame.

[0010] Preferably, a collection plate is fixedly installed on the bottom side of the mounting bracket near the limiting groove, and the collection plate is located above the T-slot.

[0011] Preferably, a rotating shaft is rotatably mounted between the two supports, and a hydraulic rod is connected to the end of the rotating shaft. A support plate is fixedly sleeved on the surface of the rotating shaft. A track groove is recessed in the surface of the arc-shaped support groove. A limit rod is fixedly installed on the inner wall of the track groove. A slider is slidably sleeved on the surface of the limit rod. A stop rod is fixedly installed on the top of the slider. An elastic element is fixedly installed on the surface of the slider and sleeved on the surface of the limit rod.

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

[0013] Preferably, both the drive wheel and the roller are fixedly fitted with rubber pads.

[0014] Compared with related technologies, the chamfering and beveling machine for thick-walled pipe welding joints provided by the present invention has the following beneficial effects:

[0015] This invention provides a beveling and chamfering machine for welding thick-walled pipes. The thick-walled pipe is placed on top of an arc-shaped support groove. After the pipe settles, a sliding mounting bracket is installed on top of the processing base to the pipe. A lead screw is rotated, and a limiting block slides within the limiting groove, causing the drive wheel to move downwards and fit against the inner wall of the thick-walled pipe. Simultaneously, through gear transmission between lead screws, and with the limiting block sliding within the limiting groove, two rollers are tilted upwards to fit against the outer wall of the thick-walled pipe. The drive wheel and the two rollers clamp the thick-walled pipe, and a beveling cutter grinds the bevel for subsequent welding operations. This eliminates the need for manual beveling, makes the grinding process more stable, and improves the beveling effect of the thick-walled pipe.

[0016] This invention provides a beveling machine for welding thick-walled pipe joints. When two U-shaped frames move closer or further apart, they drive two sliding rods to slide on the surface of the adjusting seat, thereby causing the beveling cutter and rollers to rise or fall synchronously. This allows the beveling cutter to be adjusted to the removal end for beveling while the drive wheel and rollers clamp the thick-walled pipe. The beveling cutter is driven by a brushless motor to rotate and bevele the thick-walled pipe, effectively improving pipe processing efficiency. It also has a simple structure, reduces energy consumption, and lowers processing costs. Attached Figure Description

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

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

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

[0020] Figure 4 For the present invention Figure 3 Enlarged view of the structure at point A in the middle;

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

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

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

[0024] In the diagram: 1. Machining seat, 11. Support, 12. Pallet, 13. Arc-shaped groove, 14. Track groove, 15. Slider, 16. Stop bar, 17. Limiting rod, 18. Elastic element, 19. Rotating shaft, 2. Drive motor one, 21. T-slot, 22. Mounting bracket, 23. Limiting groove one, 24. Drive motor two, 25. Limiting block one, 26. U-shaped frame one, 27. Drive wheel, 28. Bevel cutter, 29. Collecting plate, 3. U-shaped frame two, 31. Slot, 32. Slide bar, 33. Roller, 34. Limiting block two, 35. T-block, 36. Lead screw one, 37. Limiting groove two, 38. Lead screw two, 39. Through groove, 4. Helical gear one, 41. Helical gear two, 42. Brushless motor, 43. Adjustment seat. Detailed Implementation

[0025] Please see Figures 1-7 This invention provides a technical solution including a processing base 1, with supports 11 symmetrically fixedly installed on the top of the processing base 1. The top of the supports 11 has an arc-shaped groove 13 recessed downwards. A mounting bracket 22 is slidably installed at the end of the processing base 1. The surface of the mounting bracket 22 has a first limiting groove 23 and a second limiting groove 37. A first lead screw 36 is rotatably installed on the inner wall of the first limiting groove 23, and 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, and the first limiting block 25 is threaded through and sleeved on the surface of the first lead screw 36. On the surface, a U-shaped frame 26 is fixedly installed at the end of the limiting block 25, and a drive wheel 27 is rotatably installed on the surface of the U-shaped frame 26. A limiting block 34 is slidably sleeved on the inner wall of the limiting groove 37. The limiting block 34 is threadedly sleeved on the surface of the lead screw 38. A U-shaped frame 3 is fixedly installed at the end of the limiting block 34. A roller 33 is rotatably installed on the surface of the U-shaped frame 3. The lead screw 38 has a symmetrical structure with the lead screw 36 as the center. There is gear transmission between the lead screw 38 and the lead screw 36. A bevel cutter 28 is provided between the two U-shaped frames 3.

[0026] By placing the thick-walled pipe on top of the arc-shaped support 13 and allowing it to settle, the mounting bracket 22 is slidably mounted on top of the processing base 1 to the thick-walled pipe. The lead screw 36 is rotated and slids within the limiting groove 23 via the limiting block 25, causing the drive wheel 27 to move downwards and fit against the inner wall of the thick-walled pipe. Simultaneously, through gear transmission between the lead screw 36 and the lead screw 38, and the limiting block 34 sliding within the limiting groove 37, the two rollers 33 are tilted upwards and moved to fit against the outer wall of the thick-walled pipe. The drive wheel 27 and the two rollers 33 clamp the thick-walled pipe, and the beveling cutter 28 bevels the thick-walled pipe for subsequent welding operations. This eliminates the need for manual beveling and makes the beveling process more stable, improving the beveling effect of the thick-walled pipe.

[0027] A through slot 39 is provided on the surface of the mounting bracket 22. The output shaft of the drive motor 24 is fixedly installed at one end of the lead screw 36. The drive motor 24 is fixedly installed on the top of the mounting bracket 22. A helical tooth 4 is fixedly installed at the end of the lead screw 36 away from the drive motor 24. A helical tooth 41 is fixedly installed at the end of the lead screw 38. The helical tooth 41 and the helical tooth 41 mesh and transmit power.

[0028] The drive motor 24 drives the lead screw 36 to rotate, and the rotation of the lead screw 36 drives the helical gear 4 to rotate. The meshing transmission between the helical gear 4 and the two symmetrical helical gears 41 drives the two lead screws 38 to rotate. The spiral lines on the surfaces of the two lead screws 38 are adaptively adjusted to ensure that the two limit blocks 34 can move closer or further away from each other to clamp the thick-walled pipe.

[0029] A slide rod 32 is fixedly installed on the side wall of the second U-shaped frame 3. A slot 31 is opened through the side wall of the second U-shaped frame 3. The two slide rods 32 are slidably connected to the adjusting seat 43. One slide rod 32 is slidably inserted into the inner wall of the slot 31 on the side wall of the other slide 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 bevel cutter 28.

[0030] When the two U-shaped frames 23 move closer or further apart, they drive the two sliding rods 32 to slide on the surface of the adjusting seat 43, thereby driving the beveling cutter 28 and the roller 33 to rise or fall synchronously. This allows the beveling cutter 28 to be adjusted to the removal end for beveling when the drive wheel 27 and the roller 33 are clamping the thick-walled pipe. The beveling cutter 28 is driven to rotate by the brushless motor 42 to bevele the thick-walled pipe, which can effectively improve the pipe processing efficiency, and has a simple structure, reduces energy consumption, and lowers processing costs.

[0031] The top of the machining base 1 is recessed and has a T-slot 21. A lead screw is rotatably installed on the inner wall of the T-slot 21. The output shaft of the drive motor 2 is fixedly installed at the end of the lead screw. The drive motor 2 is fixedly installed on the surface of the machining base 1. A T-block 35 is threaded onto the surface of the lead screw. The top of the T-block 35 is fixedly installed at the bottom of the mounting bracket 22.

[0032] The drive motor 2 drives the lead screw to rotate, and the T-block 35 slides on the inner wall of the T-slot 21 to move the mounting bracket 22 horizontally, thereby making adaptive adjustments according to the position of the thick-walled pipe, which makes it easier for the drive wheel 27 and roller 33 to clamp the thick-walled pipe.

[0033] A collection plate 29 is fixedly installed on the bottom side of the mounting bracket 22 near the limiting groove 23, and the collection plate 29 is located above the T-slot 21.

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

[0035] A rotating shaft 19 is mounted between two supports 11 and rotates together. A hydraulic rod is connected to the end of the rotating shaft 19. A support plate 12 is fixedly sleeved on the surface of the rotating shaft 19. A track groove 14 is recessed in the surface of the arc-shaped support groove 13. A limit 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 limit rod 17. A stop rod 16 is fixedly installed on the top of the slider 15. An elastic element 18 is fixedly installed on the surface of the slider 15 and is sleeved on the surface of the limit rod 17.

[0036] The thick-walled pipe to be processed is placed on the surface of the support plate 12. Then, the support plate 12 is driven to rotate around the pivot 19 by the hydraulic rod, thereby moving the thick-walled pipe to the top of the arc-shaped support groove 13. During the process, the stop 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 stop rod 16 first contacts the thick-walled pipe, which causes the slider 15 to slide on the surface of the limit rod 17, squeezing the elastic element 18 to contract and store energy, thereby slowing down the rolling speed of the thick-walled pipe. The stop rod 16 limits the thick-walled pipe to prevent it from falling out of the arc-shaped support groove 13 and causing an accident.

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

[0038] The drive wheel 27 is driven by the motor to rotate, so that the drive wheel 27 and the roller 33 can hold the thick-walled pipe. The rotation of the drive wheel 27 keeps the thick-walled pipe stable while rotating, so that the beveling cutter 28 can bevel the thick-walled pipe.

[0039] Both the drive wheel 27 and the roller 33 are fixedly fitted with rubber pads;

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

Claims

1. A chamfering and beveling machine for weld joints of thick-walled pipes, comprising a processing base (1), characterized in that: The machining base (1) is symmetrically fixedly mounted with a support (11) on its top. The support (11) has an arc-shaped groove (13) recessed downwards at its top. The machining base (1) is slidably mounted with a mounting bracket (22) at its end. The mounting bracket (22) has a limiting groove one (23) and a limiting groove two (37) on its surface. A lead screw one (36) is rotatably mounted on the inner wall of the limiting groove one (23). A lead screw two (38) is rotatably mounted on the inner wall of the limiting groove two (37). A limiting block one (25) is slidably sleeved on the inner wall of the limiting groove one (23). The limiting block one (25) is threaded through and sleeved on the surface of the lead screw one (36). A U-shaped frame (26) is fixedly installed at the end. A drive wheel (27) is rotatably installed on the surface of the U-shaped frame (26). A limit block (34) is slidably sleeved on the inner wall of the limit groove (37). The limit block (34) is threaded through and sleeved on the surface of the lead screw (38). A U-shaped frame (3) is fixedly installed at the end of the limit block (34). A roller (33) is rotatably installed on the surface of the U-shaped frame (3). The lead screw (38) is symmetrical about the lead screw (36) as the center. The lead screw (38) and the lead screw (36) are driven by gears. A bevel cutter (28) is provided between the two U-shaped frames (3). The mounting bracket (22) has a through slot (39) through its surface. The output shaft of the drive motor (24) is fixedly installed at one end of the lead screw (36). The drive motor (24) is fixedly installed on the top of the mounting bracket (22). The helical gear (4) is fixedly installed at the end of the lead screw (36) away from the drive motor (24). The helical gear (41) is fixedly installed at the end of the lead screw (38). The helical gear (4) meshes with the helical gear (41). A slide rod (32) is fixedly installed on the side wall of the second U-shaped frame (3). A slot (31) is opened through the side wall of the second U-shaped frame (3). The two slide rods (32) are slidably connected to an adjustment seat (43). One of the slide rods (32) is slidably inserted into the inner wall of the slot (31) on the side wall of the other slide rod (32). A brushless motor (42) is fixedly installed at the end of the adjustment seat (43). The output shaft of the brushless motor (42) is fixedly connected to the bevel cutter (28). The processing seat (1) has a T-shaped groove (21) recessed at the top. A lead screw is rotatably installed on the inner wall of the T-shaped groove (21). The output shaft of a drive motor (2) is fixedly installed at the end of the lead screw. The drive motor (2) is fixedly installed on the surface of the processing seat (1). A T-shaped block (35) is threaded onto the surface of the lead screw. The top of the T-shaped block (35) is fixedly installed at the bottom of the mounting frame (22).

2. The thick-walled pipe welding joint chamfering and beveling machine according to claim 1, characterized in that: The mounting bracket (22) has a collection plate (29) fixedly installed at the bottom of the side near the limiting groove (23), and the collection plate (29) is located above the T-groove (21).

3. The chamfering and beveling machine for thick-walled pipe welding joints according to claim 2, characterized in that: A rotating shaft (19) is rotatably mounted between the two supports (11). A hydraulic rod is connected to the end of the rotating shaft (19). A support plate (12) is fixedly sleeved on the surface of the rotating shaft (19). A track groove (14) is recessed in the surface of the arc-shaped support groove (13). A limit 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 limit rod (17). A stop rod (16) is fixedly installed on the top of the slider (15). An elastic element (18) is fixedly installed on the surface of the slider (15). The elastic element (18) is sleeved on the surface of the limit rod (17).

4. The chamfering and beveling machine for thick-walled pipe welding joints according to claim 3, characterized in that: A motor is fixedly mounted on the surface of the U-shaped frame (26), and the output shaft of the motor is directly connected to the drive wheel (27) to drive the drive wheel (27) to rotate.

5. A beveling and chamfering machine for thick-walled pipe welding joints according to claim 4, characterized in that: Both the drive wheel (27) and the roller (33) are fixedly fitted with rubber pads.

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