Forming machine for stainless steel pipe quantitative cutting processing

Abstract

The application discloses a forming machine tool for quantitative cutting and processing of stainless steel pipes and belongs to the technical field of stainless steel pipe processing. The outer shell is internally fixedly provided with a conveying assembly, a cutting assembly and a quantitative stretching assembly. The quantitative stretching assembly comprises a stretching hydraulic cylinder fixedly arranged in the outer shell. The output end of the stretching hydraulic cylinder is fixedly provided with a moving box. The moving box is slidably penetratedly connected with two sliding rods and two sliding frames. The moving box is internally fixedly provided with a control assembly for controlling the positions of the sliding rods and the sliding frames. The outer extrusion roller and the inner circular table are matched with each other to form an inner-outer clamping structure. The outer wall and the inner wall of the pipe are bidirectionally clamped to increase the clamping contact area and provide sufficient clamping friction in the quantitative stretching process. The relative slipping between the pipe and the clamping mechanism during the stretching process is avoided. The position accuracy of the pipe stretching and feeding is ensured. The length and size of the cut pipe are accurate.

Description

Technical Field

[0001] This invention relates to the field of stainless steel pipe processing technology, and in particular to a forming machine tool for quantitative cutting of stainless steel pipes. 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. In the processing of stainless steel pipe, a cutting machine is needed to cut the longer stainless steel pipe into a fixed length for subsequent processing operations.

[0003] In the process of stainless steel pipe cutting, firstly, the stainless steel pipe to be cut is stretched to the designated position using hydraulic equipment, and then the cutting equipment inside the machine tool is started to begin quantitative cutting. The overall operation is simple. However, in the actual cutting process, firstly, because the stainless steel pipe is tubular and its surface is extremely smooth, when using hydraulic equipment for stretching and clamping, the clamping force of ordinary clamping equipment is constant and cannot be automatically adjusted according to different working conditions, resulting in poor adaptability. Specifically, during the stretching stage, the smooth surface of the stainless steel pipe often leads to slippage. During cutting, the cutting blade and the stainless steel pipe come into contact, generating vibration. Ordinary clamping cannot adapt to this working condition. If the clamping force is increased indiscriminately, it will damage the stainless steel pipe. If it is not changed, it will not be enough to eliminate the vibration, ultimately causing the stainless steel pipe to shift position, resulting in deviations in the length of the cut stainless steel pipe. Therefore, a forming machine tool for quantitative cutting of stainless steel pipes is provided. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a forming machine tool for quantitative cutting of stainless steel pipes.

[0005] The present invention adopts the following technical solution:

[0006] A forming machine tool for quantitative cutting of stainless steel pipes includes a housing, within which a transport assembly, a cutting assembly, and a quantitative stretching assembly are fixedly installed.

[0007] The quantitative stretching assembly includes a stretching hydraulic cylinder fixedly installed inside a housing. A movable box is fixedly installed at the output end of the stretching hydraulic cylinder. The movable box is slidably connected to two slide rods and two slide frames. A control assembly for controlling the position of the slide rods and slide frames is fixedly installed inside the movable box. An outer clamping frame is fixedly connected to the two slide rods. Multiple rotating shafts are rotatably connected to the outer clamping frame. Extrusion rollers are fixedly installed on the rotating shafts. A motor is fixedly connected to the outer clamping frame. A one-way bearing is fixedly sleeved on the output shaft of the motor. The one-way bearing and one of the rotating shafts are connected by a pulley assembly. Multiple first gears are rotatably installed on the outer clamping frame. Second gears are fixedly sleeved on the rotating shafts. The first gears and second gears are staggered, and the first gears mesh with adjacent second gears. Multiple sets of frustums are fixedly installed on the slide frames, with two frustums in each set. A deformation assembly is fixedly installed on the outer clamping frame. The deformation assembly can improve the clamping effect of the extrusion rollers.

[0008] Preferably, the deformation assembly includes a movable frame sleeved on the outside of the extrusion roller, a movable plate fixedly connected to the outside of multiple movable frames, a slide plate fixedly connected to the movable plate, the slide plate and the outer clamping frame being slidably connected, a control plate fixedly connected to the slide plate, a turntable fixedly connected to the output shaft of the motor, and multiple rubber protrusions fixedly connected to the outside of the movable frame.

[0009] Preferably, one of the movable frames is fixedly connected to a right-angle rod, the right-angle rod slides through the slide bar, the end of the right-angle rod is fixedly connected to a buckle, the slide frame is slidably connected to an adjusting rod, and the adjusting rod has a groove that matches the buckle.

[0010] Preferably, the control rod is hinged to a fourth connecting rod, and a control plate is slidably connected inside the sliding frame. The fourth connecting rod and the control plate are hinged together. The control plate has multiple grooves, the position and number of which are opposite to the frustum. A tapered rod is slidably connected through the frustum. The tapered rod abuts against the grooves. A top plate is fixedly sleeved on the tapered rod. A spring is fixedly connected between the top plate and the frustum. An extrusion head is fixedly connected to the end of the tapered rod.

[0011] Preferably, the control assembly includes two control hydraulic cylinders fixedly installed inside the movable box. The output ends of the two control hydraulic cylinders are fixedly connected to a first connecting rod. The two ends of the first connecting rod are rotatably connected to a second connecting rod. The ends of the slide rod and the slide frame are fixedly connected to a third connecting rod. The second connecting rod and the third connecting rod are rotatably connected.

[0012] Preferably, two limiting frames are fixedly installed inside the outer shell, and each of the two limiting frames is fixedly connected to a slide rail. Slider blocks are fixedly connected to both sides of the outer shell of the movable box, and the sliders and slide rails are slidably connected.

[0013] Preferably, a support frame is fixedly installed on the front side of the outer casing, and the support frame is rotatably connected to multiple support rollers.

[0014] The beneficial effects of this invention are:

[0015] 1. This device adopts an inner and outer clamping structure with an outer extrusion roller and an inner truncated cone, which clamps the stainless steel tube from both the outer and inner walls of the tube, increasing the clamping contact area and providing sufficient clamping friction during quantitative stretching. This prevents the tube from slipping relative to the clamping mechanism during the stretching process, ensuring the positional accuracy of the tube stretching and feeding, and guaranteeing the accuracy of the unloading length.

[0016] 2. During the stretching and feeding stage, a large clamping force is provided to resist the tensile load and prevent slippage. During the cutting stage, the cutting blade brings cutting impact and vibration, and the mechanism can automatically increase the clamping force to suppress pipe vibration and position displacement. During the pre-clamping stage, the clamping force is relatively gentle, which avoids insufficient clamping force causing pipe movement and length deviation, and also prevents excessive clamping force from causing indentation and flattening deformation of thin-walled stainless steel pipes.

[0017] 3. Furthermore, this device drives all the extrusion rollers to rotate synchronously through a one-way bearing, pulley, first gear, and second gear. The multiple extrusion rollers rotate at the same speed, applying a uniform clamping and conveying force to the outer circumference of the pipe. The pipe is subjected to circumferential force in a balanced manner, reducing local stress concentration and preventing elliptical deformation of the pipe. The one-way bearing structure can realize one-way drive, avoiding damage to the motor due to reverse force when the mechanism returns. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a forming machine tool for quantitative cutting of stainless steel pipes proposed in this invention;

[0019] Figure 2 This is a schematic diagram of the internal connection of the outer shell in a forming machine tool for quantitative cutting of stainless steel pipes proposed in this invention;

[0020] Figure 3 This is a schematic diagram of the structure of a quantitative stretching component in a forming machine tool for quantitative cutting of stainless steel pipes proposed in this invention;

[0021] Figure 4 This is a schematic diagram of the internal connection of the moving box in a forming machine tool for quantitative cutting of stainless steel pipes proposed in this invention;

[0022] Figure 5 This is a schematic diagram of the connection between the first connecting rod and the second connecting rod in a forming machine tool for quantitative cutting of stainless steel pipes proposed in this invention;

[0023] Figure 6This is a schematic diagram showing the connection between the extrusion roller and the moving frame in a forming machine tool for quantitative cutting of stainless steel pipes according to the present invention.

[0024] Figure 7 for Figure 6 Enlarged view of the structure at point A in the middle;

[0025] Figure 8 This is a schematic diagram showing the connection of the outer clamping frame at another angle in a forming machine tool for quantitative cutting of stainless steel pipes proposed in this invention.

[0026] Figure 9 This is a schematic diagram of the internal connection of the slide frame in a forming machine tool for quantitative cutting of stainless steel pipes proposed in this invention;

[0027] Figure 10 This is a schematic diagram of the control plate in a forming machine tool for quantitative cutting of stainless steel pipes proposed in this invention.

[0028] In the diagram: 1. Outer shell; 2. Transport frame; 3. Transport assembly; 4. Cutting assembly; 5. Quantitative stretching assembly; 6. Moving box; 7. Stretching hydraulic cylinder; 8. Limiting frame; 9. Slider; 10. Outer clamping frame; 11. Top plate; 12. Control hydraulic cylinder; 13. First connecting rod; 14. Second connecting rod; 15. Third connecting rod; 16. Slide rod; 17. Slide frame; 18. Rotating shaft; 19. Extrusion roller; 20. Moving frame; 21. First gear; 22. Second gear; 23. Motor; 24. One-way bearing; 25. Pulley assembly; 26. Turntable; 27. Control board; 28. Slide plate; 29. ​​Right angle rod; 30. Moving plate; 31. Adjustment plate; 32. Groove; 33. Frustum; 34. Adjustment rod; 35. Spring; 36. Fourth connecting rod; 37. Conical rod. Detailed Implementation

[0029] See Figures 1-10 A forming machine tool for quantitative cutting of stainless steel pipes includes a housing 1. A transport assembly 3, a cutting assembly 4, and a quantitative stretching assembly 5 are fixedly installed inside the housing 1. A support frame is fixedly installed on the front side of the housing 1, and multiple support rollers are rotatably connected to the support frame.

[0030] The transport assembly 3 includes a transport motor fixedly installed inside the housing 1. Multiple transport rollers are rotatably mounted inside the housing 1. One of the transport rollers is fixedly connected to the output end of the transport motor. A transport belt is sleeved around the multiple transport rollers for common drive. The transport belt and the support frame are positioned opposite each other.

[0031] Cutting assembly 4 includes a cutting hydraulic cylinder fixedly installed inside housing 1, a cutting motor fixedly installed at the output end of the cutting hydraulic cylinder, and a cutting blade fixedly installed at the output end of the cutting motor.

[0032] like Figure 2As shown, the cutting component 4 is located between the transport component 3 and the quantitative stretching component 5. When a quantitative cutting operation is required on the stainless steel tube, the stainless steel tube is first placed on the support roller and the transport component 3. The transport motor is started, and the transport motor drives the stainless steel tube to move until the stainless steel tube and the quantitative stretching component 5 come into contact. The quantitative stretching component 5 is then started to stretch the stainless steel tube to the designated position. The specific structure and working principle of the quantitative stretching component 5 are described below. Then, the cutting motor 23 is started, and the cutting motor 23 drives the cutting blade to rotate. The cutting hydraulic cylinder is started, and the cutting hydraulic cylinder drives the cutting motor and the cutting blade to move as a whole to cut the stainless steel tube, thus completing the quantitative cutting operation of the stainless steel tube.

[0033] The quantitative stretching assembly 5 includes a stretching hydraulic cylinder 7 fixedly installed inside the housing 1. A movable box 6 is fixedly installed at the output end of the stretching hydraulic cylinder 7. The movable box 6 is slidably connected to two slide rods 16 and two slide frames 17. The two slide frames 17 are located between the two slide rods 16. A control assembly for controlling the position of the slide rods 16 and slide frames 17 is fixedly installed inside the movable box 6. The control assembly includes two control hydraulic cylinders 12 fixedly installed inside the movable box 6. A first connecting rod 13 is fixedly connected to the output end of each of the two control hydraulic cylinders 12. A second connecting rod 14 is rotatably connected to both ends of the first connecting rod 13. A third connecting rod 15 is fixedly connected to the ends of the slide rods 16 and slide frames 17. The second connecting rod 14 and the third connecting rod 15 are rotatably connected.

[0034] Two sliding rods 16 are fixedly connected to an outer clamping frame 10 on the side away from the moving box 6. The outer clamping frame 10 is rotatably connected to multiple rotating shafts 18. Each rotating shaft 18 is fixedly mounted with a squeezing roller 19. The outer clamping frame 10 is fixedly connected to a motor 23. The output shaft of the motor 23 is fixedly sleeved with a one-way bearing 24. The one-way bearing 24 and one of the rotating shafts 18 are connected by a belt pulley assembly 25. Multiple first gears 21 are rotatably mounted on the outer clamping frame 10. The rotating shafts 18 are fixedly sleeved with second gears 22. The first gears 21 and second gears 22 are staggered, and the first gears 21 and adjacent second gears 22 mesh with each other. Multiple sets of frustums 33 are fixedly mounted on the sliding frame 17. Each set of frustums 33 has two frustums 33.

[0035] First, when the stainless steel pipe and the movable box 6 come into contact, the control hydraulic cylinder 12 is activated, driving the first connecting rod 13 to move. Since the third connecting rod 15 is fixedly connected to the slide rod 16 and the slide frame 17, and the slide rod 16 and the slide frame 17 are slidably connected to the movable box 6, the moving first connecting rod 13 will drive the third connecting rod 15 to move via the second connecting rod 14. The third connecting rod 15 will drive the slide rod 16 or the slide frame 17 to move. The slide rod 16 will drive the outer clamping frame 10 to move. The outer clamping frame 10 will drive the rotating shaft 18 and the extrusion roller 19 to move until the extrusion roller 19 touches the outer wall of the stainless steel pipe. The stainless steel tube is clamped and fixed until it comes into contact with the inner wall of the stainless steel tube. Then, the tension hydraulic cylinder 7 is activated, which moves the moving box 6. The moving box 6 moves the sliding rod 16 and the sliding frame 17. The sliding frame 17 moves the round 33. The sliding rod 16 moves the outer clamping frame 10. The outer clamping frame 10 moves the rotating shaft 18 and the extrusion roller 19. The extrusion roller 19 and the round 33 together move the stainless steel tube, stretching it to the designated position. Then, the cutting operation can begin.

[0036] During this process, motor 23 is started, in order to Figure 6 From the perspective of the motor 23, the output shaft rotates clockwise. Under the action of the one-way bearing 24, the output shaft drives the rotating shaft 18 to rotate through the pulley assembly 25. Under the transmission action of the second gear 22 and the first gear 21, all other rotating shafts 18 are driven to rotate clockwise. The rotating shaft 18 drives the extrusion roller 19 to rotate clockwise. The extrusion roller 19 is always in contact with the stainless steel tube, which not only forms a clamping effect on the stainless steel tube, but also makes the stainless steel tube tend to move towards the moving box 6 under the action of the rolling extrusion roller 19, reducing the occurrence of the stainless steel tube slippage, thereby maintaining the quantitative cutting quality.

[0037] A deformable assembly is fixedly installed on the outer clamping frame 10. The deformable assembly can improve the clamping effect of the extrusion roller 19. The deformable assembly includes a movable frame 20 sleeved on the outside of the extrusion roller 19. A movable plate 30 is fixedly connected to the outside of multiple movable frames 20. A slide plate 28 is fixedly connected to the movable plate 30. The slide plate 28 and the outer clamping frame 10 are slidably connected. A control plate 27 is fixedly connected to the slide plate 28. A turntable 26 is fixedly connected to the output shaft of the motor 23. Multiple rubber protrusions are fixedly connected to the outside of the movable frames 20. A right-angle rod 29 is fixedly connected to one of the movable frames 20. The right-angle rod 29 slides through the slide rod 16. The end of the right-angle rod 29... The slide frame 17 is fixedly connected with a buckle, and the slide frame 17 is slidably connected with an adjusting rod 34. The adjusting rod 34 has a slot that matches the buckle. The adjusting rod 34 is hinged to a fourth connecting rod 36. The slide frame 17 is slidably connected to an adjusting plate 31. The fourth connecting rod 36 and the adjusting plate 31 are hinged. The adjusting plate 31 has multiple grooves 32. The position and number of the grooves 32 are opposite to the frustum 33. The frustum 33 is slidably connected to a tapered rod 37. The tapered rod 37 abuts against the grooves 32. The tapered rod 37 is fixedly sleeved with a top plate 38. A spring 35 is fixedly connected between the top plate 38 and the frustum 33. An extrusion head is fixedly connected to the end of the tapered rod 37.

[0038] During the process of the stretching hydraulic cylinder 7 driving the moving box 6 to move, the output shaft of the motor 23 rotates clockwise, driving the turntable 26 to rotate. The turntable 26 abuts against the control plate 27, thereby driving the control plate 27 to move backward. The control plate 27 drives the moving plate 30 and the moving frame 20 to move backward as a whole. There is a certain gap between the moving frame 20 and the stainless steel tube. However, when the stainless steel tube is being cut, the motor 23 is restarted. The motor 23 drives the output shaft to rotate counterclockwise, driving the turntable 26 to rotate counterclockwise. The turntable 26 abuts against the control plate 27, thereby driving the control plate 27 to move forward. The control plate 27 drives the moving plate 30 and the moving frame 20 to move forward. The moving frame 20 abuts against the stainless steel tube, increasing the clamping force on the stainless steel tube and making the stainless steel tube more stable.

[0039] At the same time, the moving frame 20 drives the right-angle rod 29 to move, and the right-angle rod 29 drives the buckle to move. The buckle extends into the slot. The buckle is a common elastic buckle in real life. When the buckle enters the slot, it will automatically lock into the slot, thereby making the slide rod 16 and the slide frame 17 more tightly connected, making the overall stability of the device stronger, and further making the stainless steel pipe more stable.

[0040] Furthermore, during the process of the buckle extending into the slot, the buckle first abuts against the control rod 34, thereby driving the control rod 34 to move. The control rod 34 drives the control plate 31 to move through the fourth connecting rod 36. Since the tapered rod 37 abuts against the inner wall of the groove 32, during the movement of the control plate 31, the tapered rod 37 will move away from the slide frame 17, causing the tapered rod 37 to abut against the inner wall of the stainless steel tube, further increasing the clamping force of the stainless steel tube.

[0041] Two limiting frames 8 are fixedly installed inside the outer shell 1. Both limiting frames 8 are fixedly connected to slide rails. Slider 9s are fixedly connected to both sides of the outer shell 6. The slider 9s are slidably connected to the slide rails to further determine and limit the movement trajectory of the moving box 6.

[0042] In this invention, when a quantitative cutting operation is required on a stainless steel tube, the stainless steel tube is first placed on the support roller and the transport assembly 3. The transport motor is then started, and the transport motor drives the stainless steel tube to move until the stainless steel tube and the moving box 6 come into contact. At this time, the control hydraulic cylinder 12 is activated, and the control hydraulic cylinder 12 drives the first connecting rod 13 to move. The moving first connecting rod 13 will drive the third connecting rod 15 to move through the second connecting rod 14. The third connecting rod 15 drives the sliding rod 16 or the sliding frame 17 to move. The sliding rod 16 drives the outer clamping frame 10 to move. The outer clamping frame 10 drives the rotating shaft 18 and the extrusion roller 19 to move until the extrusion roller 19 comes into contact with the outer wall of the stainless steel tube. At the same time, the sliding frame 17 drives the frustum 33 to move until... The stainless steel tube is clamped and fixed until the truncated cone 33 abuts against the inner wall of the stainless steel tube. Then, the tensioning hydraulic cylinder 7 is activated, which drives the moving box 6 to move. The moving box 6 drives the sliding rod 16 and the sliding frame 17 to move. The sliding frame 17 drives the truncated cone 33 to move. The sliding rod 16 drives the outer clamping frame 10 to move. The outer clamping frame 10 drives the rotating shaft 18 and the extrusion roller 19 to move. The extrusion roller 19 and the truncated cone 33 together drive the stainless steel tube to move, stretching the stainless steel tube to the designated position. Then, the cutting motor is activated, which drives the cutting blade to rotate. The cutting hydraulic cylinder is activated, which drives the cutting motor and the cutting blade to move as a whole, cutting the stainless steel tube. Finally, the quantitative cutting operation of the stainless steel tube is completed.

[0043] During the stretching process, the motor 23 is started, and the motor 23 drives the output shaft to rotate clockwise. Under the action of the one-way bearing 24, the output shaft drives the first gear 21 to rotate through the pulley assembly 25. Under the transmission action of the second gear 22, all other first gears 21 are driven to rotate clockwise. The first gear 21 drives the rotating shaft 18 to rotate clockwise. The rotating shaft 18 drives the extrusion roller 19 to rotate clockwise. The extrusion roller 19 is always in contact with the stainless steel tube, increasing the clamping effect on the stainless steel tube.

[0044] During the cutting process, the motor 23 is started, and the motor 23 drives the output shaft to rotate counterclockwise. The output shaft drives the turntable 26 to rotate counterclockwise. The turntable 26 and the control plate 27 abut against each other, which in turn drives the control plate 27 to move forward. The control plate 27 drives the moving plate 30 and the moving frame 20 to move forward. The moving frame 20 abuts against the stainless steel tube, which further increases the clamping force on the stainless steel tube and makes the stainless steel tube more stable.

[0045] At the same time, the moving frame 20 drives the right-angle rod 29 to move, and the right-angle rod 29 drives the buckle to move. The buckle extends into the slot. The buckle is a common elastic buckle in real life. When the buckle enters the slot, it will automatically lock into the slot, thereby making the slide rod 16 and the slide frame 17 more tightly connected, making the overall stability of the device stronger, and further making the stainless steel pipe more stable.

[0046] Furthermore, during the process of the buckle extending into the slot, the buckle first abuts against the control rod 34, thereby driving the control rod 34 to move. The control rod 34 drives the control plate 31 to move through the fourth connecting rod 36. Since the tapered rod 37 abuts against the inner wall of the groove 32, during the movement of the control plate 31, the tapered rod 37 will move away from the slide frame 17, causing the tapered rod 37 to abut against the inner wall of the stainless steel tube, further increasing the clamping force of the stainless steel tube.

Claims

1. A forming machine tool for quantitative cutting of stainless steel pipes, comprising a housing (1), characterized in that, The outer shell (1) is fixedly installed with a transport component (3), a cutting component (4), and a quantitative stretching component (5). The quantitative stretching assembly (5) includes a stretching hydraulic cylinder (7) fixedly installed inside the housing (1). A movable box (6) is fixedly installed at the output end of the stretching hydraulic cylinder (7). The movable box (6) is slidably connected to two slide rods (16) and two slide frames (17). A control assembly for controlling the position of the slide rods (16) and slide frames (17) is fixedly installed inside the movable box (6). An outer clamping frame (10) is fixedly connected to the two slide rods (16). A plurality of rotating shafts (18) are rotatably connected to the outer clamping frame (10). An extrusion roller (19) is fixedly installed on the rotating shaft (18). The outer clamping frame (19) is rotatably connected to the outer clamping frame (19). 0) A motor (23) is fixedly connected, and a one-way bearing (24) is fixedly sleeved on the output shaft of the motor (23). The one-way bearing (24) and one of the rotating shafts (18) are connected by a belt pulley assembly (25). Multiple first gears (21) are rotatably installed on the outer clamping frame (10). A second gear (22) is fixedly sleeved on the rotating shaft (18). The first gear (21) and the adjacent second gear (22) mesh with each other. Multiple sets of frustums (33) are fixedly installed on the sliding frame (17). Each set of frustums (33) has two frustums. A deformable component is fixedly installed on the outer clamping frame (10).

2. The forming machine tool for quantitative cutting of stainless steel pipes according to claim 1, characterized in that, The deformation assembly includes a movable frame (20) sleeved on the outside of the extrusion roller (19), a movable plate (30) fixedly connected to the outside of multiple movable frames (20), a sliding plate (28) fixedly connected to the movable plate (30), the sliding plate (28) and the outer clamping frame (10) being slidably connected, a control plate (27) fixedly connected to the sliding plate (28), a turntable (26) fixedly connected to the output shaft of the motor (23), and multiple rubber protrusions fixedly connected to the outside of the movable frame (20).

3. The forming machine tool for quantitative cutting of stainless steel pipes according to claim 2, characterized in that, One of the movable frames (20) is fixedly connected to a right-angle rod (29), which slides through the slide rod (16). A buckle is fixedly connected to the end of the right-angle rod (29). The slide frame (17) is slidably connected to an adjusting rod (34), which has a slot that matches the buckle.

4. The forming machine tool for quantitative cutting of stainless steel pipes according to claim 3, characterized in that, The control rod (34) is hinged to a fourth connecting rod (36), and a control plate (31) is slidably connected inside the sliding frame (17). The fourth connecting rod (36) and the control plate (31) are hinged together. The control plate (31) has multiple grooves (32). The position and number of the grooves (32) are opposite to the frustum (33). The frustum (33) is slidably connected to a conical rod (37). The conical rod (37) and the grooves (32) abut against each other. The conical rod (37) is fixedly sleeved with a top plate (11). A spring (35) is fixedly connected between the top plate (11) and the frustum (33). An extrusion head is fixedly connected to the end of the conical rod (37).

5. A forming machine tool for quantitative cutting of stainless steel pipes according to claim 1, characterized in that, The control assembly includes two control hydraulic cylinders (12) fixedly installed inside the movable box (6). The output ends of the two control hydraulic cylinders (12) are fixedly connected to a first connecting rod (13). The two ends of the first connecting rod (13) are rotatably connected to a second connecting rod (14). The ends of the slide rod (16) and the slide frame (17) are fixedly connected to a third connecting rod (15). The second connecting rod (14) and the third connecting rod (15) are rotatably connected.

6. A forming machine tool for quantitative cutting of stainless steel pipes according to claim 1, characterized in that, Two limiting frames (8) are fixedly installed inside the outer shell (1). Both limiting frames (8) are fixedly connected to slide rails. Slider (9) are fixedly connected to both sides of the outer shell (6). The slider (9) and the slide rail are slidably connected.

7. A forming machine tool for quantitative cutting of stainless steel pipes according to claim 1, characterized in that, A support frame is fixedly installed on the front side of the outer shell (1), and the support frame is rotatably connected to multiple support rollers.

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