Stainless steel tube cutting apparatus

Abstract

The application relates to a stainless steel pipe cutting device which comprises a rack and a cutting mechanism arranged on the rack, the cutting mechanism comprising a cutting knife slidingly connected to the rack and a cutting motor for driving the cutting knife to rotate; the rack is further provided with a clamping mechanism for supporting and driving the stainless steel pipe to rotate axially and an infeed mechanism for driving the cutting knife to move, the infeed mechanism comprising an infeed gear and an infeed rack, the infeed gear is coaxially and rotationally connected to the cutting knife and located on one side of the cutting knife, the infeed rack is fixed to the rack and engaged with the infeed gear, the infeed gear is driven by an infeed motor and moves along the infeed rack; the cutting knife is further provided with a detection mechanism for controlling the infeed gear, the detection mechanism comprising a detection rod slidingly connected to the rack, the detection rod is contained in the side wall of the cutting knife and can be arranged outside the cutting knife. The application has the effect of adjusting the infeed depth according to the thickness of the stainless steel pipe.

Description

Technical Field

[0001] This application relates to the field of stainless steel pipe cutting technology, and in particular to stainless steel pipe cutting equipment. Background Technology

[0002] Stainless steel pipe is a hollow, long, round steel material, mainly used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as mechanical structural components. Since the stainless steel pipes purchased are usually long, they need to be cut according to requirements.

[0003] The existing Chinese patent with publication number CN111069688B discloses a fully automatic stainless steel pipe cutting mechanism, including a frame, with pressure blocks symmetrically slidably mounted on the frame, and multiple first ball bearings mounted on the inner walls of the two pressure blocks. A frame is fixedly mounted on the frame, and a cylinder is fixedly mounted on the upper end of the frame. A drive shaft is fixedly connected to the drive end of the cylinder, and a connecting block is fixedly connected to the lower end of the drive shaft. A housing is fixedly clamped inside the connecting block, and a cutting blade is rotatably mounted inside the housing. A cutting motor is mounted on one side of the housing, and the drive end of the cutting motor is fixedly connected to the cutting blade.

[0004] The aforementioned equipment cuts stainless steel pipes by the falling cutting blade. However, when dealing with stainless steel pipes of different wall thicknesses, it is impossible to accurately control the depth of the cutting blade. If the blade penetrates too deeply, the vibration generated by the cutting blade will increase the probability of the blade breaking. The applicant believes that the cutting depth should be adjusted according to the thickness of the stainless steel pipe, and therefore provides stainless steel pipe cutting equipment. Summary of the Invention

[0005] In order to enable the equipment to adjust the feed depth according to the thickness of the stainless steel pipe, this application provides a stainless steel pipe cutting device.

[0006] The stainless steel pipe cutting equipment provided in this application adopts the following technical solution: it includes a frame and a cutting mechanism mounted on the frame. The cutting mechanism includes a cutting blade slidably connected to the frame and a cutting motor that drives the cutting blade to rotate. The frame is also equipped with a clamping mechanism that supports and drives the stainless steel pipe to rotate axially and a feed mechanism that drives the cutting blade to move. The feed mechanism includes a feed gear and a feed rack. The feed gear is coaxially rotatably connected to the cutting blade and located on one side of the cutting blade. The feed rack is fixed to the frame and meshes with the feed gear. The feed gear is driven by the feed motor. The cutting blade moves along the feed rack; the cutting blade is also equipped with a detection mechanism to control the feed gear. The detection mechanism includes a detection rod slidably connected to the frame. The detection rod is housed inside the side wall of the cutting blade and can pass through the outside of the cutting blade. One end of the detection rod extends towards the cutting blade near the stainless steel tube, and the other end can engage the feed gear. The feed rack is arranged in the same direction as the detection rod. When the detection rod is housed inside the side wall of the cutting blade, the feed gear rotates, and the cutting blade advances. When the cutting blade cuts through the inner wall of the stainless steel tube, the detection rod passes through the outside of the cutting blade and engages the feed gear, and the cutting blade stops advancing.

[0007] By adopting the above technical solution, the cutting blade can be driven by the feed mechanism to move towards the stainless steel tube and maintain a rotating cutting state. At the same time, the clamping part clamps the stainless steel tube and drives the stainless steel tube to rotate. The cutting blade can cut the stainless steel tube from one direction. During cutting, the cutting blade gradually penetrates into the inner wall of the stainless steel tube, and the wall thickness of the stainless steel tube is detected by the detection mechanism. When it cuts through the side wall of one side of the stainless steel tube, the detection mechanism detects the cut and controls the feed mechanism to stop the feed. The cutting blade stops penetrating the stainless steel tube and maintains this depth to cut around the stainless steel tube, thereby realizing the cutting process of adjusting the feed depth according to the wall thickness of the stainless steel tube.

[0008] Preferably, the detection rod includes an extension rod and a detection end. The cutting blade has a detection groove on the side wall of the detection rod. The extension rod is accommodated and movably connected in the detection groove. The detection end is fixed to the end of the extension rod near the stainless steel tube and extends away from the cutting blade. The detection end is accommodated in the detection groove and can pass through the detection groove. The cutting blade has sliding frames on both sides, and the sliding frames are slidably connected to sliders along the direction of the extension rod. The detection mechanism also includes a connecting slide rod, a compression spring, and a control unit. One end of the connecting slide rod is fixed to the extension rod, and the other end is slidably connected to the corresponding slider. The compression spring is fixedly connected between the slider and the extension rod and is located on one side of the connecting slide rod. The control unit includes a locking piece fixed to the extension rod and a locking body fixed to the end wall of the feed gear. When the compression spring drives the detection end to disengage from the detection groove, the locking piece abuts against the positioning locking body.

[0009] By adopting the above technical solution, the probe end changes its positional relationship with the stainless steel pipe to detect the cutting depth of the cutting blade. When the probe end reaches the required cutting depth and loses contact with the cut surface of the stainless steel pipe, the cutting blade stops feeding through the control unit.

[0010] Preferably, the locking plate is provided with locking blocks at intervals; the lock body includes a number of locking rods that are circumferentially fixed to the end wall of the feed gear, and each locking rod is provided with a clearance groove for the locking blocks to pass through; when the probe end is placed in the probe groove, the feed gear rotates, and the clearance grooves on the locking rods allow the locking blocks to pass through; when the probe end passes outside the probe groove, the locking blocks move and abut against and are positioned on the side wall of the locking rod.

[0011] By adopting the above technical solution, the locking plate and the locking rod can rotate relative to each other without affecting each other. When it is necessary to position the feed gear, they can abut against each other to achieve the purpose of positioning.

[0012] Preferably, the clamping mechanism includes a positioning part for positioning the stainless steel tube. The positioning part includes a positioning motor, a positioning arm, and a positioning rack. The positioning motor is fixed on the frame and located on one side of the opposite sliding frame. The positioning arms are arranged opposite to each other on both sides of the positioning motor. One end of the opposite positioning arms is slidably connected to the frame, and the other end can clamp the stainless steel tube relative to each other. The output shaft of the positioning motor is provided with a meshing gear. The positioning rack is fixed on both sides of the positioning arm near the side wall of the positioning motor and meshes with the meshing gear. When the opposite positioning arms clamp the stainless steel tube, the axis of the stainless steel tube is located on the horizontal plane of the extension line of the extension rod.

[0013] By adopting the above technical solution, the positioning arm can clamp the stainless steel pipe, and after clamping, the axis lines of stainless steel pipes of different diameters are all located in the same horizontal plane, thereby ensuring the accuracy of the detection mechanism in detecting the depth of the pipe wall.

[0014] Preferably, the sliding frame is also provided with an identification mechanism for controlling the detection end. The identification mechanism includes a probe, a pressure spring, and a control ring. A through shaft is slidably connected between opposing sliders. One end of the probe is fixed to the side wall of the through shaft, and the other end extends parallel to the sliding direction of the slider. An identification groove is provided on the opposite side of the detection groove on the cutting blade. The end of the probe away from the through shaft can be accommodated and movably connected to the identification groove. The end of the probe near the stainless steel tube has a bevel, which moves from the outside to the inside toward the detection end. One end of the pressure spring is fixed to the slider on the side of the cutting blade with the identification groove, and the other end is fixed to the end of the through shaft with the probe. The control ring is fixed to the through shaft and located on the side of the extension rod away from the cutting blade. The side wall of the control ring can abut against the extension rod. The pressure spring overcomes the compression spring force and pulls the extension rod and the detection end to be accommodated in the detection groove.

[0015] By adopting the above technical solution, the identification mechanism can control the state of the detection mechanism without manual control. It can detect whether the cutting blade is cutting the stainless steel pipe, and the detection unit starts working after the cutting blade cuts into the stainless steel pipe.

[0016] Preferably, the feed motor and the cutting motor drive the feed gear and the cutting blade respectively through a transmission unit, which includes a lifting block, a tension spring, and a tension shaft. The lifting blocks are respectively disposed on the sliding frame at the end away from the slider. The tension shaft is rotatably connected to the adjacent sidewalls of the opposite lifting blocks and extends towards each other. The feed motor is fixed to the sliding frame and located above the corresponding lifting block. The feed motor drives the feed gear and the tension shaft to rotate through a belt. The cutting motor is fixed to the sliding frame and located above the corresponding lifting block. The cutting motor drives the cutting blade and the tension shaft to rotate through a belt. The sliding frame has a vertically formed tension groove for the lifting blocks to slide. The tension spring is respectively fixed to the top of the corresponding tension groove and the top of the lifting block and drives the lifting block to descend.

[0017] By adopting the above technical solution, the feed gear and the cutting blade can move and rotate simultaneously, allowing the cutting motor to remotely drive the cutting blade and maintain power transmission during movement; the feed motor can remotely drive the feed gear and maintain power transmission during movement.

[0018] Preferably, the clamping mechanism further includes a rotating part that drives the stainless steel tube to rotate axially. The rotating part includes a rotating shaft and a rotating motor. The rotating shaft is rotatably connected to the corresponding positioning arm and abuts against the outer wall of the stainless steel tube. The axis of the rotating shaft is parallel to the axis of the stainless steel tube. The rotating motor is fixed to the relatively upper positioning arm and is located on the other side of the positioning arm away from the stainless steel tube. The output shaft of the rotating motor drives the rotating shaft to rotate.

[0019] By adopting the above technical solution, the stainless steel pipe can be rotated along the axis while being relatively positioned, and then cut with the cutting blade.

[0020] Preferably, the cutting blade is rotatably connected to the through shaft and can slide axially relative to the through shaft; the feed gear is rotatably connected to the corresponding slider and sleeved on the through shaft, and can rotate relative to the through shaft.

[0021] By adopting the above technical solution, the through shaft can connect and control the probes and control rings on both sides of the cutting blade, and can enable the feed gear to drive the cutting blade to feed.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] The cutting blade can be driven by the feed mechanism to move towards the stainless steel tube and maintain a rotating cutting state. At the same time, the clamping part clamps the stainless steel tube and drives the stainless steel tube to rotate. The cutting blade can cut the stainless steel tube from one direction. During cutting, the cutting blade gradually penetrates into the inner wall of the stainless steel tube, and the wall thickness of the stainless steel tube is detected by the detection mechanism. When it cuts through the side wall of the stainless steel tube, the detection mechanism detects the cut and controls the feed mechanism to stop the feed. The cutting blade stops penetrating the stainless steel tube and maintains that depth to cut around the stainless steel tube, thereby realizing the cutting process of adjusting the feed depth according to the wall thickness of the stainless steel tube.

[0024] The probe changes its position relative to the stainless steel pipe to detect the cutting depth of the cutting blade. When the probe reaches the required cutting depth and loses contact with the cut surface of the stainless steel pipe, the cutting blade stops feeding through the control unit.

[0025] The identification mechanism can control the state of the detection mechanism without manual intervention. It detects whether the cutting blade is cutting the stainless steel pipe, and the detection unit starts working once the cutting blade enters the stainless steel pipe.

[0026] The positioning arm can clamp stainless steel pipes and ensure that the centerlines of stainless steel pipes of different diameters are all located in the same horizontal plane after clamping, thereby ensuring the accuracy of the detection mechanism in detecting the depth of the pipe wall.

[0027] When the stainless steel pipe is relatively positioned, it can rotate along the axis and be cut with the cutting blade. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0029] Figure 2 This is a partial structural schematic diagram of the identification mechanism of the hidden side sliding frame according to an embodiment of this application;

[0030] Figure 3 This is a partial structural schematic diagram of the feed mechanism of the hidden side sliding frame according to an embodiment of this application.

[0031] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Cutting mechanism; 21. Cutting blade; 22. Cutting motor; 3. Feeding mechanism; 31. Feeding gear; 32. Feeding rack; 4. Feeding motor; 5. Detection mechanism; 51. Detection rod; 511. Detection end; 512. Extension rod; 52. Connecting slide rod; 53. Compression spring; 54. Control unit; 55. Locking plate; 56. Locking block; 57. Lock body; 571. Locking rod; 572. Clearing groove; 6. Detection groove; 7. Sliding frame; 8. Clamp 81. Tightening mechanism; 81. Positioning part; 811. Positioning motor; 812. Positioning arm; 813. Positioning rack; 82. Rotating part; 821. Rotating shaft; 822. Rotating motor; 9. Through shaft; 10. Identification mechanism; 101. Probe; 102. Pressure spring; 103. Control ring; 11. Identification groove; 12. Transmission part; 121. Lifting block; 122. Tension spring; 123. Tension shaft; 13. Belt; 14. Tension groove; 15. Meshing gear; 16. Slider. Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] This application discloses a stainless steel pipe cutting device, as shown in the embodiments below. Figure 1 The device includes a frame 1 and a cutting mechanism 2 mounted on the frame 1. The frame 1 is also provided with several clamping mechanisms 8 that support and drive the stainless steel pipe to rotate axially, and the clamping mechanisms 8 are offset from the cutting mechanism 2. While the clamping mechanisms 8 drive the stainless steel pipe to rotate axially, the cutting mechanism 2 cuts the stainless steel pipe circumferentially to complete the cutting operation.

[0034] Reference Figure 1 The clamping mechanism 8 includes a positioning part 81 for positioning stainless steel tubes. The positioning part 81 includes a positioning motor 811, a positioning arm 812, and a positioning rack 813. The positioning motor 811 is fixed to the frame 1. The positioning arms 812 are arranged vertically opposite to each other on both sides of the positioning motor 811. One end of the opposite positioning arms 812 is slidably connected to the frame 1, and the other end can clamp the stainless steel tubes. The output shaft of the positioning motor 811 is provided with a meshing gear 15. The positioning rack 813 is fixed to the side wall of the positioning arm 812 near the meshing gear 15 and meshes with both sides of the meshing gear 15. The positioning motor 811 drives the positioning rack 813. The opposite positioning arms 812 can clamp the stainless steel tubes and are adjustable so that the axis of the stainless steel tubes of different diameters are all located in the same horizontal plane after clamping.

[0035] Reference Figure 1The clamping mechanism 8 also includes a rotating part 82 that drives the stainless steel tube to rotate axially. The rotating part 82 includes a rotating shaft 821 and a rotating motor 822. The rotating shaft 821 is rotatably connected to the corresponding positioning arm 812 and abuts against the outer wall of the stainless steel tube. The axis of the rotating shaft 821 is parallel to the axis of the stainless steel tube. The rotating motor 822 is fixed to the upper positioning arm 812. The output shaft of the rotating motor 822 drives the rotating shaft 821 to rotate and drives the stainless steel tube to rotate, so that the cutting mechanism 2 can complete the cutting.

[0036] Reference Figure 1 , 2 The cutting mechanism 2 includes a cutting blade 21 and a cutting motor 22 that drives the cutting blade 21 to rotate. The frame 1 is fixed with opposing sliding frames 7 extending toward the stainless steel pipe. The cutting blade 21 is located between the opposing sliding frames 7, and the rotation axis of the cutting blade 21 is located on the horizontal plane of the axis of the stainless steel pipe. The cutting motor 22 is fixed to one side of the sliding frame 7 and is located above the side of the sliding frame 7 closest to the frame 1. The cutting motor 22 drives the cutting blade 21 to cut the stainless steel pipe through the transmission part 12, and the cutting blade 21 can slide toward the stainless steel pipe through the feed mechanism 3 provided on the sliding frame 7.

[0037] Reference Figure 2 , 3 The feed mechanism 3 includes a feed gear 31 and a feed rack 32. Slider 16 are slidably connected to the horizontal plane of the sliding frame 7 corresponding to the axis of the stainless steel tube. The cutting blade 21 is rotatably connected to the slider 16 on the side closer to the cutting motor 22, and the feed gear 31 is rotatably connected to the slider 16 on the other side. The feed rack 32 meshes with the feed gear 31 and is fixed to the corresponding sliding frame 7, arranged parallel to the lower part of the slider 16. A through shaft 9 connects the opposing sliders 16, passing through and axially slidably connected to the axis of the feed gear 31 and the cutting blade 21. The feed motor 4 is fixed to the sliding frame 7 on the other side relative to the cutting motor 22, and located above the side of the sliding frame 7 away from the stainless steel tube. The feed motor 4 drives the feed gear 31 to rotate through the transmission part 12. When the feed gear 31 rotates and moves along the feed rack 32, the feed gear 31 drives the corresponding slider 16 to slide, and the through shaft 9 drives the slider 16 on the other side to move the cutting blade 21 towards the stainless steel tube.

[0038] Reference Figure 2 , 3The transmission unit 12 includes a lifting block 121, a tension spring 122, and a tension shaft 123. The lifting blocks 121 are respectively disposed on the sliding frame 7 at one end away from the slider 16, and are respectively located below the cutting motor 22 and the feed motor 4. The tension shaft 123 is rotatably connected to the side wall of the opposite lifting blocks 121 and extends towards each other. The feed motor 4 drives the feed gear 31 and the corresponding tension shaft 123 to rotate through the belt 13. The cutting motor 22 drives the cutting blade 21 and the corresponding tension shaft 123 to rotate through the belt 13. The sliding frame 7 is vertically provided with tension grooves 14 for the lifting block 121 to slide. Tension springs 122 are fixed to the top of the corresponding tension grooves 14 and the top of the lifting block 121 respectively and drive the lifting block 121 to descend. When the slider 16 approaches the stainless steel tube, the belt 13 pulls the lifting block 121 to rise. When the slider 16 moves away from the stainless steel tube, the tension spring 122 drives the lifting block 121 to descend and tightens the belt 13, so that the feed motor 4 maintains the drive of the feed gear 31 and the cutting motor 22 maintains the drive of the cutting blade 21.

[0039] Reference Figure 2 , 3 The slider 16 is equipped with an identification mechanism 10 for identifying whether the cutting blade 21 has cut into the stainless steel pipe. The identification mechanism 10 includes a probe 101, a pressure spring 102, and a control ring 103. The through shaft 9 extends to the outside of the corresponding slider 16 from the side near the cutting motor 22. One end of the probe 101 is fixed to the side wall of the extended end of the through shaft 9, and the other end extends along the sliding direction of the slider 16. The cutting blade 21 has an identification groove 11 on the side wall near the probe 101. The end of the probe 101 away from the through shaft 9 can be accommodated and movably connected to the identification groove 11. The probe 101 has a bevel near the stainless steel tube end, which moves from the outside inward toward the side wall of the cutting blade 21; one end of the pressure spring 102 is fixed to the slider 16 on the side of the cutting blade 21 with the identification groove 11, and the other end is fixed to the end of the through shaft 9 with the probe 101; the control ring 103 is fixed to the through shaft 9 and is located on the other side of the cutting blade 21 opposite to the probe 101. The cutting blade 21 has a detection mechanism 5 on the side near the control ring 103 to control the cutting depth of the cutting blade 21. The control ring 103 can control the opening and closing of the detection mechanism 5.

[0040] Reference Figure 2 , 3The detection mechanism 5 includes a detection rod 51, a connecting slide rod 52, and a compression spring 53. The detection rod 51 includes an extension rod 512 and a detection end 511. The cutting blade 21 has a detection groove 6 on the opposite side wall of the identification groove 11. The extension rod 512 is accommodated and movably connected in the detection groove 6. The detection end 511 is fixed to the end of the extension rod 512 near the stainless steel tube and extends away from the cutting blade 21. The detection end 511 is accommodated in the detection groove 6 and can pass through the detection groove 6. When the probe 101 enters the stainless steel tube, the detection end 511 abuts against the cut surface of the stainless steel tube. One end of the connecting slide rod 52 is fixed to the extension rod 512, and the other end is slidably connected to the slider 16 with the feed gear 31. The compression spring 53 is fixedly connected between the slider 16 and the extension rod 512 and is located on one side of the connecting slide rod 52. The end of the extension rod 512 away from the detection end 511 can abut against the side wall of the control ring 103 near the cutting blade 21.

[0041] Reference Figure 2 , 3 When the cutting blade 21 is located outside the stainless steel tube, the pressure spring 102 pulls the probe 101 outside the cutting blade 21, and drives the control ring 103 through the through shaft 9 to overcome the force of the compression spring 53 and pull the extension rod 512 and the probe end 511 into the probe groove 6. At this time, the extension rod 512 is locked. When the cutting blade 21 cuts into the stainless steel tube, the probe 101 is squeezed by the cut surface of the stainless steel tube along the inclined surface and is placed in the identification groove 11. The probe 101 drives the through shaft 9 to drive the control ring 103 to move away from the cutting blade 21. The extension rod 512 loses the contact of the control ring 103 and the extension rod 512 can move.

[0042] Reference Figure 2 , 3 The detection mechanism 5 also includes a control unit 54 that can control the feed gear 31 to stop feeding. The control unit 54 includes a locking plate 55 fixed to the extension rod 512 and a locking member fixed to the end wall of the feed gear 31. Locking blocks 56 are spaced apart on the locking plate 55. The lock body 57 includes several locking rods 571 that are circumferentially spaced and fixed to the end wall of the feed gear 31. Each locking rod 571 has a clearance groove 572 for the locking blocks 56 to pass through. When the cutting blade 21 fails to cut through the stainless steel tube, the detection end 511 abuts against the cut surface of the stainless steel tube and is accommodated in the detection groove 6. Inside, the locking block 56 can pass through the clearance groove 572 on several locking rods 571. The feed gear 31 rotates and drives the cutting blade 21 to approach the stainless steel tube. When the cutting blade 21 cuts through the stainless steel tube and the probe end 511 loses contact with the cut surface of the stainless steel tube, the probe end 511 can pass through the probe groove 6. The compression spring 53 drives the extension rod 512 to drive the locking piece 55 to slide towards the lock body 57. The locking block 56 slides and abuts against the side wall of the locking rod 571, thereby positioning the feed gear 31 and fixing the feed depth of the cutting blade 21.

[0043] The working process of this application is as follows: the positioning arm 812 supports the stainless steel tube, the rotating motor 822 drives the stainless steel tube to rotate; the cutting motor 22 drives the cutting blade 21 to rotate, the feed motor 4 drives the feed gear 31 to rotate and drive the cutting blade 21 to feed, the probe 101 is located outside the cutting blade 21, and the detection mechanism 5 is in a non-working state; the cutting blade 21 cuts into the stainless steel tube, the probe 101 is housed in the identification groove 11, the detection mechanism 5 works, the detection end 511 abuts against the cut surface of the stainless steel tube, the detection end 511 identifies that the cutting blade 21 has cut through the stainless steel tube, the locking piece 55 abuts against the positioning lock body 57, the feed gear 31 stops rotating, the cutting depth of the cutting blade 21 is fixed, and the cutting blade 21 cuts the rotating stainless steel tube.

[0044] When the stainless steel tube that has been completely cut away is removed from the side of the probe 101, the probe 101 slides to the outside of the identification groove 11 and pulls the detection end 511 into the detection groove 6, and the equipment can perform the cutting operation again.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stainless steel pipe cutting device, comprising a frame (1) and a cutting mechanism (2) mounted on the frame (1), characterized in that: The cutting mechanism (2) includes a cutting blade (21) slidably connected to the frame (1) and a cutting motor (22) that drives the cutting blade (21) to rotate; the frame (1) is also provided with a clamping mechanism (8) that supports and drives the stainless steel pipe to rotate axially and a feeding mechanism (3) that drives the cutting blade (21) to move. The feeding mechanism (3) includes a feeding gear (31) and a feeding rack (32). The feeding gear (31) is coaxially rotatably connected to the cutting blade (21) and located on one side of the cutting blade (21). The feeding rack (32) is fixed on the frame (1) and meshes with the feeding gear (31). The feeding gear (31) is driven by the feeding motor (4) and moves along the feeding rack (32); the cutting blade (21) is also provided with a control feeding gear. The detection mechanism (5) of the wheel (31) includes a detection rod (51) slidably connected to the frame (1). The detection rod (51) is housed in the side wall of the cutting blade (21) and can pass through the outside of the cutting blade (21). One end of the detection rod (51) extends towards the cutting blade (21) and closes to the stainless steel tube, and the other end can be engaged with the feed gear (31). The feed rack (32) is arranged in the same direction as the detection rod (51). When the detection rod (51) is housed in the side wall of the cutting blade (21), the feed gear (31) rotates and the cutting blade (21) advances. When the cutting blade (21) cuts through the inner wall of the stainless steel tube, the detection rod (51) passes through the outside of the cutting blade (21) and engages with the feed gear (31), and the cutting blade (21) stops advancing. The probe rod (51) includes an extension rod (512) and a probe end (511). The cutting blade (21) has a probe groove (6) on the side wall corresponding to the probe rod (51). The extension rod (512) is accommodated and movably connected in the probe groove (6). The probe end (511) is fixed to the end of the extension rod (512) near the stainless steel tube and extends away from the cutting blade (21). The probe end (511) is accommodated in the probe groove (6) and can pass through the probe groove (6). The cutting blade (21) has sliding frames (7) on both sides. The sliding frames (7) are slidably connected to sliders (16) along the direction of the extension rod (512). The probe machine The structure (5) also includes a connecting slide rod (52), a compression spring (53) and a control unit (54). One end of the connecting slide rod (52) is fixed to the extension rod (512), and the other end is slidably connected to the corresponding slider (16). The compression spring (53) is fixedly connected between the slider (16) and the extension rod (512) and is located on one side of the connecting slide rod (52). The control unit (54) includes a locking piece (55) fixed to the extension rod (512) and a locking body (57) fixed to the end wall of the feed gear (31). When the compression spring (53) drives the probe end (511) to disengage from the probe slot (6), the locking piece (55) abuts against the positioning locking body (57). Locking blocks (56) are spaced apart on the locking plate (55); the lock body (57) includes several locking rods (571) that are circumferentially fixed to the end wall of the feed gear (31), and each locking rod (571) is provided with a clearance groove (572) for the locking blocks (56) to pass through; when the probe end (511) is placed in the probe groove (6), the feed gear (31) rotates, and the clearance grooves (572) on the locking rods (571) allow the locking blocks (56) to pass through; when the probe end (511) passes outside the probe groove (6), the locking blocks (56) move and abut against the side wall of the locking rod (571).

2. The stainless steel pipe cutting equipment according to claim 1, characterized in that: The clamping mechanism (8) includes a positioning part (81) for positioning stainless steel tubes. The positioning part (81) includes a positioning motor (811), a positioning arm (812), and a positioning rack (813). The positioning motor (811) is fixed on the frame (1) and located on one side of the opposite sliding frame (7). The positioning arm (812) is arranged opposite to the positioning motor (811) on both sides. One end of the opposite positioning arm (812) is slidably connected to the frame (1), and the other end can clamp the stainless steel tube relative to each other. The output shaft of the positioning motor (811) is provided with a meshing gear (15). The positioning rack (813) is fixed to the side wall of the positioning arm (812) near the positioning motor (811) and meshes with the meshing gear (15) on both sides. When the opposite positioning arm (812) clamps the stainless steel tube, the axis of the stainless steel tube is located on the horizontal plane of the extension line of the extension rod (512).

3. The stainless steel pipe cutting equipment according to claim 1, characterized in that: The sliding frame (7) is also provided with an identification mechanism (10) for controlling the detection end (511). The identification mechanism (10) includes a probe (101), a pressure spring (102), and a control ring (103). A through shaft (9) is slidably connected between the opposing sliders (16). One end of the probe (101) is fixed to the side wall of the through shaft (9), and the other end extends parallel to the sliding direction of the slider (16). The cutting blade (21) has an identification groove (11) on the opposite side of the detection groove (6). The end of the probe (101) away from the through shaft (9) can be accommodated and movably connected to the identification groove (11). The probe (101) is close to the The stainless steel tube has a bevel at one end, which moves from the outside inward toward the probe end (511); one end of the pressure spring (102) is fixed to the slider (16) on the side of the cutter (21) with the identification groove (11), and the other end is fixed to the end of the through shaft (9) with the probe (101). The control ring (103) is fixed to the through shaft (9) and located on the side of the extension rod (512) away from the cutter (21). The side wall of the control ring (103) can abut against the extension rod (512). The pressure spring (102) overcomes the force of the compression spring (53) to pull the extension rod (512) and the probe end (511) into the probe groove (6).

4. The stainless steel pipe cutting equipment according to claim 1, characterized in that: The feed motor (4) and the cutting motor (22) drive the feed gear (31) and the cutting blade (21) respectively through the transmission part (12). The transmission part (12) includes a lifting block (121), a tension spring (122), and a tension shaft (123). The lifting blocks (121) are respectively set on the sliding frame (7) at one end away from the slider (16). The tension shaft (123) is rotatably connected to the adjacent side walls of the opposite lifting blocks (121) and extends towards each other. The feed motor (4) is fixed on the sliding frame (7) and located above the corresponding lifting block (121). The machine (4) drives the feed gear (31) and the stretching shaft (123) to rotate via the belt (13); the cutting motor (22) is fixed on the sliding frame (7) and located above the corresponding lifting block (121). The cutting motor (22) drives the cutting blade (21) and the stretching shaft (123) to rotate via the belt (13); the sliding frame (7) has a vertical stretching groove (14) for the lifting block (121) to slide. The stretching spring (122) is fixed to the top of the corresponding stretching groove (14) and the top of the lifting block (121) respectively and drives the lifting block (121) to descend.

5. The stainless steel pipe cutting equipment according to claim 2, characterized in that: The clamping mechanism (8) further includes a rotating part (82) for driving the stainless steel tube to rotate axially. The rotating part (82) includes a rotating shaft (821) and a rotating motor (822). The rotating shaft (821) is rotatably connected to the corresponding positioning arm (812) and abuts against the outer wall of the stainless steel tube. The axis of the rotating shaft (821) is parallel to the axis of the stainless steel tube. The rotating motor (822) is fixed on the upper positioning arm (812) and is located on the other side of the positioning arm (812) away from the stainless steel tube. The output shaft of the rotating motor (822) drives the rotating shaft (821) to rotate.

6. The stainless steel pipe cutting equipment according to claim 3, characterized in that: The cutting blade (21) is rotatably connected to the through shaft (9) and can slide axially relative to the through shaft (9); the feed gear (31) is rotatably connected to the corresponding slider (16) and sleeved on the through shaft (9), and can rotate relative to the through shaft (9).

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