A pipe cutting device for mechanical processing

Abstract

The present invention belongs to the technical field of mechanical processing, and specifically discloses a pipe cutting device for mechanical processing, including a base, a pipe and a fixed rod, a linear guide rail is fixedly connected to the base, two fixed blocks are fixedly connected to the linear guide rail, a ball screw is rotatably installed between the two fixed blocks, the ball screw has high precision and a relatively faster speed than an ordinary screw, and is suitable for efficient and accurate cutting of the pipe, a fixed seat is fixedly connected to the upper end of the guide seat, a clamping mechanism for clamping the pipe is installed on the fixed seat, and the clamping mechanism can provide stable clamping for pipes of different diameters, two slide grooves 2 are provided on the base, a slide frame is slidably connected to the slide grooves 2, a sealing mechanism is installed on the slide frame, and the sealing mechanism is used to seal one end of the pipe, thereby ensuring that sufficient suction can be formed inside the pipe when the vacuum cleaner sucks the cutting slag inside the pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing, and specifically discloses a pipe cutting device for mechanical processing. Background Art

[0002] Laser cutting uses a focused high-power density laser beam to irradiate the workpiece, causing the irradiated material to quickly melt, vaporize, ablate or reach the ignition point, and at the same time uses a high-speed airflow coaxial with the beam to blow away the molten material, thereby achieving the cutting of the workpiece. The accuracy of laser cutting is relatively high, so for high-precision pipe cutting processing, laser cutting is usually used to cut the pipe.

[0003] In the prior art, the cutting slag inside the pipe is mostly blown out directly by blowing air. However, during laser cutting, the laser cutting head will also blow out protective auxiliary gas to blow the molten or vaporized material away from the cut and into the pipe. Therefore, if the cutting slag inside the pipe is blown out directly by blowing air, this airflow and the protective auxiliary gas blown out by the laser cutting head will form convection, thereby affecting the protective auxiliary gas from effectively blowing the molten or vaporized material away from the cut, resulting in a serious decline in cutting quality.

[0004] Therefore, the existing pipe cutting device cannot meet the needs in actual use, so there is an urgent need for improved technology to solve the above problems. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a pipe cutting device for mechanical processing to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides a pipe cutting device for mechanical processing, including a base, a pipe and a fixed rod, a linear guide rail is fixedly connected to the base, two fixed blocks are fixedly connected to the linear guide rail, a ball screw is rotatably installed between the two fixed blocks, a motor is also fixedly connected to the base, the output end of the motor is fixedly connected to the ball screw, a bracket is provided on one side of the linear guide rail, the bracket is fixedly connected to the base, a laser cutting head is installed on the bracket, a guide seat is slidably connected to the linear guide rail, and the guide seat is threadedly connected to the ball screw, a fixed seat is fixedly connected to the upper end of the guide seat, a clamping mechanism for clamping the pipe is installed on the fixed seat, two slide grooves 2 are provided on the base, a slide frame is slidably connected to the slide groove 2, and a blocking mechanism is installed on the slide frame.

[0007] Preferably, the clamping mechanism includes a rotating drum, a three-jaw chuck, and a servo motor. A support rod one and a support plate are fixedly connected to the fixed seat. The servo motor is fixedly mounted on the support rod one, and the rotating drum is rotatably mounted on the support plate. The output end of the servo motor is fixedly connected to one end of the rotating drum. A support rod three is fixedly connected to the inner wall at a position close to the opening. A three-jaw chuck is fixedly connected to the support rod three, and the axis of the three-jaw chuck coincides with the axis of the rotating drum. A slag collection component is also provided inside the rotating drum.

[0008] Preferably, the slag collection assembly includes a vacuum cleaner, a filter tube, a slide rod and a sleeve, the sleeve is sleeved on the outer wall of one end of the pipe, two guide grooves are provided on the inner wall of the rotating drum, the upper and lower ends of the slide rod are respectively slidably connected in the guide grooves, and the lower end of the slide rod is arc-shaped, the vacuum cleaner is fixed to the left side of the slide rod, and a collecting pipe is fixed to the right side of the slide rod, one end of the collecting pipe close to the pipe is fixed to the sleeve, and the other end of the collecting pipe is fixed to the filter tube, and the end of the filter tube away from the collecting pipe is connected to the vacuum cleaner, and the diameter of the end of the collecting pipe connected to the sleeve is smaller than the diameter of the end of the collecting pipe connected to the filter tube.

[0009] Preferably, an airbag is fixedly installed inside the sleeve, and an air inlet and an air outlet are opened on the tube wall of the sleeve. The airbag is connected with the air inlet and the air outlet respectively. The airbag is annular and fits tightly with the outer wall of the pipe. An air inlet pipe is also installed on the vacuum cleaner, and the other end of the air inlet pipe is connected with the air inlet. The diameter of the air outlet is smaller than the diameter of the air inlet. A filter screen is movably installed inside the filter tube, and a baffle rod is rotatably connected to the end wall of the collecting tube, and the baffle rod is fitted with the filter screen.

[0010] Preferably, a plurality of threaded holes are provided on the rotating drum, and the threaded holes penetrate the rotating drum and extend to the guide groove near the side of the air inlet pipe. Bolt 1 is installed in the threaded hole, and bolt 1 is threadedly connected to the upper end of the sliding rod.

[0011] Preferably, the sealing mechanism includes an outer tube, two airbags and a hydraulic pump. The fixed rod is fixedly connected to the middle position of the sliding frame. The outer tube is fixedly installed on the fixed rod and passes through the fixed rod. The inside of the outer tube is fixedly connected to a support rod four, and an inner tube is fixedly connected to the support rod four. The inner tube is coaxially arranged with the outer tube. Pump seat one and pump seat two are fixedly connected to the side wall of the fixed rod. A hydraulic pump is fixedly installed on the pump seat one, and a small air pump is fixedly installed on the pump seat two. The small air pump is connected to the outer tube, and the hydraulic pump is connected to the inner tube.

[0012] Preferably, an airbag 2 is fixedly connected to one end of the outer tube away from the hydraulic pump. The airbag 2 is circular and fits tightly against the inner wall of the pipe. The inner tube extends into the interior of the airbag 2. The inner tube is located on the outer wall of the pipe of the airbag 2 and is fixedly connected with a plurality of sleeves arranged at equal angles. The sleeve is connected to the inner tube, and a piston rod is slidably connected inside the sleeve. An arc-shaped support rod is provided at the end of the piston rod away from the sleeve, and the sleeve is filled with liquid.

[0013] Preferably, a slide groove 1 is provided on the side wall of the fixed rod close to the pipe, a slider is slidably connected inside the slide groove, a rangefinder is fixedly connected to the slider, a support rod 2 is also fixedly connected to the side wall of the fixed rod, a bolt 2 is movably installed between the support rod 2 and the slider, a cylinder is fixedly connected to the base, and the output end of the cylinder is fixedly connected to the slide frame.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Through the setting of the clamping mechanism, the three-jaw chuck can provide stable clamping for pipes of different diameters. At the same time, the servo motor can drive the rotating drum to rotate, and the rotating drum drives the pipe to rotate. The ball screw drives the pipe to move linearly, so that the laser cutting head can cut the required shape or cut a certain distance on the outer wall of the pipe.

[0016] 2. Through the setting of the vacuum cleaner, on the one hand, the cutting slag formed inside the pipe during cutting can be collected into the collection tube to avoid the high-temperature slag from damaging the inner wall of the pipe and preventing the cutting slag from affecting the subsequent cutting of the pipe by the laser cutting head when it is inside the pipe. On the other hand, the suction method can be used to avoid conflict with the protective auxiliary gas blown out by the laser cutting head, thereby reducing the cutting quality.

[0017] 3. By setting the sealing mechanism, one end opening of the pipe can be sealed, which can ensure to the greatest extent that the vacuum cleaner has sufficient suction force when sucking the slag inside the pipe, so that the vacuum cleaner can effectively collect the slag inside the pipe into the collection pipe.

[0018] 4. Through the setting of the distance meter, slider and other structures, when the length of the pipe is cut, after cutting a certain distance, the distance to the end of the cut pipe is measured by the distance meter, and then the cylinder is started, and the slide frame is driven by the cylinder to move in the second slide groove, thereby driving the outer tube to move, and the outer tube drives the airbag 2 to move and insert into the interior of the pipe again to seal the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a front structural schematic diagram of the present invention;

[0021] Figure 3 It is a structural schematic diagram of A of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the sleeve of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of C of the present invention;

[0024] Figure 6 It is a side connection structure diagram of the present invention;

[0025] Figure 7 It is a schematic diagram of the structure of B of the present invention;

[0026] Figure 8 It is a structural schematic diagram of the outer tube of the present invention;

[0027] Fig. 9 This is a schematic diagram of the internal structure of the second airbag of the present invention;

[0028] Fig.10 It is a schematic diagram of the structure of D of the present invention.

[0029] 1. Base; 2. Motor; 3. Fixed block; 4. Ball screw; 5. Linear guide; 6. Guide seat; 7. Fixed seat; 8. Support rod 1; 9. Support plate; 10. Servo motor; 11. Rotating drum; 12. Collecting pipe; 13. Bracket; 14. Slide 1; 15. Small air pump; 16. Hydraulic pump; 17. Outer pipe; 18. Fixed rod; 19. Slide 2; 20. Pipe; 21. Slide frame; 22. Cylinder; 23. Laser cutting head; 24. Vacuum cleaner; 25. Filter tube; 26. Guide groove ; 27. Slider; 28. Three-jaw chuck; 29. ​​Distance meter; 30. Sleeve; 301. Air bag one; 302. Air inlet; 303. Air outlet; 31. Bolt one; 32. Sliding rod; 33. Support rod three; 34. Air inlet pipe; 35. Filter; 36. Baffle rod; 37. Air bag two; 38. Pump seat one; 39. Pump seat two; 40. Inner tube; 41. Support rod four; 42. Arc support rod; 43. Piston rod; 44. Sleeve; 45. Support rod two; 46. Bolt two; 47. Threaded hole. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] See also Figure 1-10As shown, the present invention is a pipe cutting device for mechanical processing, including a base 1, a pipe 20 and a fixed rod 18. A linear guide 5 is fixedly connected to the base 1. Two fixed blocks 3 are fixedly connected to the linear guide 5. A ball screw 4 is rotatably installed between the two fixed blocks 3. The ball screw 4 has high precision and a relatively fast speed compared to an ordinary screw, which is suitable for efficient and accurate cutting of pipes. A motor 2 is also fixedly connected to the base 1. The output end of the motor 2 is fixedly connected to the ball screw 4. A bracket 13 is provided on one side of the linear guide 5. The bracket 13 is fixedly connected to the base 1. A laser cutting head 23 is installed on the bracket 13. A guide seat 6 is slidably connected to the linear guide 5. The linear guide 5 can improve the precision of the guide seat 6 when it moves, thereby improving the movement precision of the pipe 20. To ensure the accuracy of the pipe 20 when it is moving and cutting, the guide seat 6 is threadedly connected to the ball screw 4, and the upper end of the guide seat 6 is fixedly connected to a fixed seat 7, and a clamping mechanism for clamping the pipe 20 is installed on the fixed seat 7. The clamping mechanism can provide stable clamping for pipes 20 of different diameters. Two slide grooves 19 are provided on the base 1, and a slide frame 21 is slidably connected to the slide groove 19. A sealing mechanism is installed on the slide frame 21. The sealing mechanism is used to seal one end of the pipe 20, so as to ensure that the vacuum cleaner 24 can form sufficient suction inside the pipe 20 when sucking the cutting slag inside the pipe 20. It should be noted that a slit will be formed when the pipe 20 is cut, and gas can flow through the slit without affecting the suction of the vacuum cleaner 24.

[0033] The clamping mechanism includes a rotating drum 11, a three-jaw chuck 28, and a servo motor 10. A support rod 8 and a support plate 9 are fixedly connected to the fixed seat 7. The servo motor 10 is fixedly installed on the support rod 8. The rotating drum 11 is rotatably installed on the support plate 9. The output end of the servo motor 10 is fixedly connected to one end of the rotating drum 11. The servo motor 10 can drive the rotating drum 11 to rotate when rotating, and the rotating drum 11 drives the pipe 20 to rotate. The ball screw 4 drives the pipe 20 to move linearly so that the laser cutting head 23 can cut the required shape on the outer wall of the pipe 20. The rotating drum 1 A support rod 33 is fixedly connected to the inner wall near the opening, and a three-jaw chuck 28 is fixedly connected to the support rod 33, and the axis of the three-jaw chuck 28 coincides with the axis of the drum 11. The three-jaw chuck 28 can stably clamp and fix the pipes 20 with different diameters. A slag collecting component is also provided inside the drum 11, and the slag collecting component is used to collect the cutting slag inside the pipe 20 in time to prevent the high-temperature slag from damaging the inner wall of the pipe 20 and to prevent the cutting slag inside the pipe 20 from affecting the subsequent cutting of the pipe 20 by the laser cutting head 23.

[0034] The slag collection assembly includes a vacuum cleaner 24, a filter tube 25, a slide rod 32 and a sleeve 30. The sleeve 30 is sleeved on the outer wall of one end of the pipe 20. Two guide grooves 26 are provided on the inner wall of the drum 11. The upper and lower ends of the slide rod 32 are respectively slidably connected in the guide grooves 26, and the lower end of the slide rod 32 is arc-shaped. The sliding slide rod 32 facilitates the subsequent sleeve 30 to be sleeved with the pipes 20 of different clamping lengths. The vacuum cleaner 24 is fixedly connected to the left side of the slide rod 32, and the collection pipe 12 is fixedly connected to the right side of the slide rod 32.

[0035] In the prior art, the cutting slag inside the pipe is mostly blown out directly by blowing air. However, during laser cutting, the laser cutting head 23 will also blow out a protective auxiliary gas to blow the melted or vaporized material away from the cut and into the pipe. Therefore, if the cutting slag inside the pipe is blown out directly by blowing air, this airflow and the protective auxiliary gas blown out by the laser cutting head 23 will form convection, thereby affecting the protective auxiliary gas to effectively blow the melted or vaporized material away from the cut, resulting in a serious decline in cutting quality. The vacuum cleaner 24 of the present application uses suction to absorb the cutting slag inside the pipe 20, and will not form convection with the protective auxiliary gas, thereby ensuring the quality of the laser cut pipe 20.

[0036] One end of the collecting pipe 12 close to the pipe 20 is fixedly connected to the sleeve 30, and the other end of the collecting pipe 12 is fixedly connected to the filter tube 25. The filter tube 25 is used to filter the cutting slag inside the pipe 20 to prevent the cutting slag from entering the vacuum cleaner 24. The end of the filter tube 25 away from the collecting pipe 12 is connected to the vacuum cleaner 24. The diameter of the end of the collecting pipe 12 connected to the sleeve 30 is smaller than the diameter of the end of the collecting pipe 12 connected to the filter tube 25. The collecting pipe 12 is used to store the cutting slag sucked from the inside of the pipe 20 to prevent the cutting slag from accumulating at the end of the pipe 20. At the same time, due to the different diameters at both ends of the collecting pipe 12, the bottom position of the end with a larger diameter is lower than the bottom position of the end with a smaller diameter, so that the cutting slag can be collected to the end of the collecting pipe 12 with a larger diameter as much as possible, as far away from the pipe 20 as much as possible.

[0037] An airbag 301 is fixedly installed inside the sleeve 30, and an air inlet 302 and an air outlet 303 are opened on the tube wall of the sleeve 30. The airbag 301 can make the sleeve 30 be connected with the pipes 20 of different diameters. The airbag 301 is connected with the air inlet 302 and the air outlet 303 respectively. The airbag 301 is annular and fits tightly with the outer wall of the pipe 20. An air inlet pipe 34 is also installed on the vacuum cleaner 24. The other end of the air inlet pipe 34 is connected with the air inlet 302. The diameter of the air outlet 303 is smaller than the diameter of the air inlet 302. The gas output by the vacuum cleaner 24 partially flows to the air inlet pipe 34, and the air inlet pipe 34 The airbag 301 is inflated through the air inlet 302 so that the airbag 301 can fit tightly against the outer wall of the pipe 20, and since the diameter of the air outlet 303 is smaller than the diameter of the air inlet 302, the gas inside the airbag 301 can be discharged, minimizing the impact on the exhaust of the vacuum cleaner 24 and ensuring that the airbag 301 is always full. A filter screen 35 is movably installed inside the filter tube 25, and a baffle rod 36 is rotatably connected to the end wall of the collecting tube 12, the baffle rod 36 is fitted with the filter screen 35, and the filter screen 35 is used to filter the cutting slag, and the rotating setting of the baffle rod 36 facilitates the removal of the filter screen 35.

[0038] A plurality of threaded holes 47 are provided on the rotating drum 11, and the threaded holes 47 extend through the rotating drum 11 to the guide groove 26 near the side of the air inlet pipe 34. A bolt 31 is installed in the threaded hole 47, and the bolt 31 is threadedly connected to the upper end of the slide rod 32. The bolt 31 can fix the slide rod 32 after it moves.

[0039] The blocking mechanism includes an outer tube 17, an airbag 2 37 and a hydraulic pump 16. A fixed rod 18 is fixedly connected to the middle position of the slide frame 21. The outer tube 17 is fixedly installed on the fixed rod 18 and penetrates the fixed rod 18. A support rod 41 is fixedly connected to the inside of the outer tube 17. An inner tube 40 is fixedly connected to the support rod 41, and the inner tube 40 is coaxially arranged with the outer tube 17. A pump seat 1 38 and a pump seat 2 39 are fixedly connected to the side wall of the fixed rod 18. The hydraulic pump 16 is fixedly installed on the pump seat 1 38, and a small air pump 15 is fixedly installed on the pump seat 2 39. The small air pump 15 is connected to the outer tube 17. The small air pump 15 can inflate the airbag 2 37 through the outer tube 17, so that the airbag The second airbag 37 can block one end of the pipe 20 to maximize the suction force formed inside the pipe 20, thereby preventing the vacuum cleaner 24 from sucking the cutting slag inside the pipe 20. Due to the opening of the pipe 20, external gas will continuously enter the pipe 20, resulting in a small suction force formed inside the pipe 20 when the vacuum cleaner 24 sucks the cutting slag inside the pipe 20, and the slag inside the pipe 20 cannot be effectively sucked into the collection pipe 12. At the same time, the airbag 237 can also block the openings of the pipes 20 of different diameters. The hydraulic pump 16 is connected to the inner tube 40, and the hydraulic pump 16 can pump liquid into the inner tube 40.

[0040] An airbag 2 37 is fixedly connected to one end of the outer tube 17 away from the hydraulic pump 16. The airbag 2 37 is circular. The airbag 2 37 fits tightly against the inner wall of the pipe 20, and the inner tube 40 extends into the inside of the airbag 2 37. The inner tube 40 is located on the outer wall of the pipe of the airbag 2 37 and is fixedly connected with a plurality of sleeves 44 arranged at equal angles. The sleeve 44 is communicated with the inner tube 40, and a piston rod 43 is slidably connected inside the sleeve 44. An arc-shaped support rod 42 is provided at one end of the piston rod 43 away from the sleeve 44. The sleeve 44 is filled with liquid. When the airbag 2 37 blocks the opening of one end of the pipe 20, the hydraulic pump 16 can drive the liquid inside the sleeve 44 through the inner tube 40 to drive the piston rod 43 to move, so that the piston rod 43 drives the arc-shaped support rod 42 to support the inner wall of the airbag 2 37, so that the airbag 2 37 can be shaped into a circle to prevent the airbag 2 37 from forming wrinkles when the pipe 20 rotates, resulting in a decrease in sealing performance.

[0041] A slide groove 14 is provided on the side wall of the fixed rod 18 close to the pipe 20, and a slider 27 is slidably connected inside the slide groove 14, and a distance meter 29 is fixedly connected to the slider 27. A support rod 25 is also fixedly connected to the side wall of the fixed rod 18, and a bolt 26 is movably installed between the support rod 25 and the slider 27. A cylinder 22 is fixedly connected to the base 1, and the output end of the cylinder 22 is fixedly connected to the slide frame 21. When the length of the pipe 20 is cut, after cutting a certain distance, the distance to the end of the cut pipe 20 is measured by the distance meter 29, and then the cylinder 22 is started, and the slide frame 21 is driven by the cylinder 22 to move in the slide groove 19, thereby driving the outer tube 17 to move, and the outer tube 17 drives the air bag 237 to move and insert it into the pipe 20 again to seal the pipe 20.

[0042] First, insert the pipe 20 into the three-jaw chuck 28, fix the pipe 20 through the three-jaw chuck 28, and dock the pipe 20 with the sleeve 30 at the same time, then start the cylinder 22, drive the slide frame 21 to move in the slide groove 19 through the cylinder 22, thereby drive the outer tube 17 to move, and the outer tube 17 drives the airbag 2 37 to move and insert into the pipe 20 to block the pipe 20, start the small air pump 15 to inflate the airbag 2 37 through the outer tube 17, so that the airbag 2 37 can block one end of the pipe 20, and maximize the suction formed inside the pipe 20, and the hydraulic pump 16 drives the liquid inside the sleeve 44 through the inner tube 40 to drive the piston rod 43 to move, so that the piston rod 43 drives the arc support rod 42 to support the inner wall of the airbag 2 37, so that the airbag 2 37 can be shaped. A circle is formed to prevent the airbag 23 from forming wrinkles when the tube 20 rotates, resulting in a decrease in sealing performance. Then the laser cutting head 23 is started. The laser cutting head 23 can move in three axes. This is a prior art and will not be described in detail here. At the same time, the servo motor 10 can drive the rotating drum 11 to rotate when it rotates, and the rotating drum 11 drives the tube 20 to rotate. The ball screw 4 drives the tube 20 to move in a straight line so that the laser cutting head 23 can cut the required pattern on the outer wall of the tube or cut a certain length. At the same time, the vacuum cleaner 24 is started. The vacuum cleaner 24 absorbs the cutting slag inside the tube 20 into the collection tube 12 to prevent the high-temperature slag from damaging the inner wall of the tube and to prevent the cutting slag from affecting the subsequent cutting of the tube 20 by the laser cutting head 23 when it is inside the tube 20.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A pipe cutting device for mechanical processing, comprising a base (1), a pipe (20) and a fixed rod (18), wherein a linear guide rail (5) is fixedly connected to the base (1), two fixed blocks (3) are fixedly connected to the linear guide rail (5), a ball screw (4) is rotatably mounted between the two fixed blocks (3), a motor (2) is also fixedly connected to the base (1), an output end of the motor (2) is fixedly connected to the ball screw (4), a bracket (13) is provided on one side of the linear guide rail (5), the bracket (13) is fixedly connected to the base (1), and a laser cutting head (23) is mounted on the bracket (13), Features: A guide seat (6) is slidably connected to the linear guide rail (5), and the guide seat (6) is threadedly connected to the ball screw (4); a fixed seat (7) is fixedly connected to the upper end of the guide seat (6); a clamping mechanism for clamping a pipe (20) is installed on the fixed seat (7); two second slide grooves (19) are provided on the base (1); a slide frame (21) is slidably connected to the second slide groove (19); and a blocking mechanism is installed on the slide frame (21); The clamping mechanism comprises a rotating drum (11), a three-jaw chuck (28), and a servo motor (10); a slag collecting assembly is provided inside the rotating drum (11); The slag collecting assembly comprises a vacuum cleaner (24), a filter tube (25), a slide rod (32) and a sleeve (30); the sleeve (30) is sleeved on the outer wall of one end of the pipe (20); two guide grooves (26) are provided on the inner wall of the rotating drum (11); the upper and lower ends of the slide rod (32) are respectively slidably connected in the guide grooves (26); the lower end of the slide rod (32) is arc-shaped; the vacuum cleaner (24) is fixedly connected to the left side of the slide rod (32); A collecting pipe (12) is fixedly connected to the right side of the rod (32); one end of the collecting pipe (12) close to the pipe (20) is fixedly connected to the sleeve (30); the other end of the collecting pipe (12) is fixedly connected to the filter pipe (25); one end of the filter pipe (25) away from the collecting pipe (12) is connected to the dust collector (24); the diameter of the end of the collecting pipe (12) connected to the sleeve (30) is smaller than the diameter of the end of the collecting pipe (12) connected to the filter pipe (25); An airbag (301) is fixedly installed inside the sleeve (30), and an air inlet (302) and an air outlet (303) are provided on the tube wall of the sleeve (30). The airbag (301) is connected to the air inlet (302) and the air outlet (303) respectively. The airbag (301) is annular and fits tightly with the outer wall of the pipe (20). An air inlet pipe (34) is also installed on the vacuum cleaner (24). The other end of the air inlet pipe (34) is connected to the air inlet (302). The diameter of the air outlet (303) is smaller than the diameter of the air inlet (302). A filter screen (35) is movably installed inside the filter tube (25). A stop rod (36) is rotatably connected to the end wall of the collection tube (12), and the stop rod (36) fits with the filter screen (35). The blocking mechanism comprises an outer tube (17), an airbag 2 (37) and a hydraulic pump (16); the fixed rod (18) is fixedly connected to the middle position of the sliding frame (21); the outer tube (17) is fixedly mounted on the fixed rod (18) and penetrates the fixed rod (18); a support rod 4 (41) is fixedly connected to the interior of the outer tube (17); an inner tube (40) is fixedly connected to the support rod 4 (41); and the inner tube (40) is coaxially arranged with the outer tube (17); a pump seat 1 (38) and a pump seat 2 (39) are fixedly connected to the side wall of the fixed rod (18); a hydraulic pump (16) is fixedly mounted on the pump seat 1 (38); and a small air pump (15) is fixedly mounted on the pump seat 2 (39); the small air pump (15) is communicated with the outer tube (17); and the hydraulic pump (16) is communicated with the inner tube (40); The outer tube (17) is fixedly connected to an airbag (37) at one end away from the hydraulic pump (16). The airbag (37) is circular and fits tightly against the inner wall of the pipe (20). The inner tube (40) extends into the interior of the airbag (37). The inner tube (40) is located on the outer wall of the airbag (37) and is fixedly connected to a plurality of sleeves (44) arranged at equal angles. The sleeves (44) are connected to the inner tube (40), and a piston rod (43) is slidably connected inside the sleeve (44). An arc-shaped support rod (42) is provided at one end of the piston rod (43) away from the sleeve (44). The sleeve (44) is filled with liquid.

2. A pipe cutting device for mechanical processing according to claim 1, It is characterized in that A support rod 1 (8) and a support plate (9) are fixedly connected to the fixed seat (7); a servo motor (10) is fixedly mounted on the support rod 1 (8); a rotating drum (11) is rotatably mounted on the support plate (9); an output end of the servo motor (10) is fixedly connected to one end of the rotating drum (11); a support rod 3 (33) is fixedly connected to the inner wall of the rotating drum (11) at a position close to the opening; a three-jaw chuck (28) is fixedly connected to the support rod 3 (33); and an axis of the three-jaw chuck (28) coincides with an axis of the rotating drum (11).

3. A pipe cutting device for mechanical processing according to claim 1, It is characterized in that The rotating cylinder (11) is provided with a plurality of threaded holes (47), the threaded holes (47) passing through the rotating cylinder (11) and extending to the guide groove (26) near the side of the air inlet pipe (34), the threaded holes (47) being provided with bolts (31), and the bolts (31) being threadedly connected to the upper end of the slide rod (32).

4. A pipe cutting device for mechanical processing according to claim 1, It is characterized in that A slide groove (14) is provided on the side wall of the fixed rod (18) near the pipe (20), a slider (27) is slidably connected inside the slide groove (14), a distance meter (29) is fixedly connected to the slider (27), a support rod (45) is also fixedly connected to the side wall of the fixed rod (18), a bolt (46) is movably installed between the support rod (45) and the slider (27), a cylinder (22) is fixedly connected to the base (1), and an output end of the cylinder (22) is fixedly connected to the slide frame (21).

Images