Steel pipe cutting device for steel pipe cold rolling forming machining

Abstract

The invention provides a steel pipe cutting device for steel pipe cold rolling forming machining, which comprises a cutting table, a movable frame is arranged on the cutting table, cutting assemblies are arranged on the movable frame, a clamping seat is arranged at the end part of the movable frame, two clamping assemblies are mounted on the clamping seat, and each clamping assembly comprises a movable clamping jaw and a fixed clamping jaw; the clamping base is further provided with two first air cylinders, the ends of the two first air cylinders are in butt joint with the two movable clamping jaws respectively, and a positioning installation assembly is arranged between the first air cylinders and the clamping base. In the invention, if the movable clamping jaw and the first air cylinder are not completely inserted, the position of the mounting seat relative to the inserting seat can be finely adjusted by screwing the first fastening nut until the butt joint is completely inserted into the slot, so that the quick fine adjustment of the mounting position of the first air cylinder is realized, and the problem that the connection points of the air cylinder and the movable clamping jaw are difficult to be completely butted is solved; and the installation efficiency and the assembly precision are improved.

Description

Technical Field

[0001] This invention belongs to the field of steel pipe processing equipment, and in particular relates to a steel pipe cutting device for cold rolling forming of steel pipes. Background Technology

[0002] In the cold rolling forming process of steel pipes, long steel pipes often need to be cut to a fixed length. Existing steel pipe cutting equipment typically includes a cutting table, a moving frame, and cutting components mounted on the moving frame. To fix the steel pipe during cutting and ensure its synchronous movement with the cutting components, a clamping mechanism is often installed. Traditional clamping mechanisms often use a cylinder to drive a movable jaw that engages with a fixed jaw to clamp the steel pipe. However, when installing the cylinder and the movable jaw, the connection point between the cylinder piston rod end and the movable jaw needs to be fully aligned; otherwise, a reliable connection is difficult to achieve or the clamping effect will be affected. Due to manufacturing and assembly errors, the cylinder's installation position often requires fine-tuning. Existing structures typically lack a convenient and reliable fine-tuning mechanism, resulting in low installation efficiency, difficulty in alignment, and the tendency for the connection to loosen due to vibration and other factors after long-term use, affecting clamping stability. Summary of the Invention

[0003] In view of this, the present invention aims to provide a steel pipe cutting device for cold rolling forming of steel pipes, in order to solve the technical problem that the installation position of the cylinder often needs to be fine-tuned due to manufacturing and assembly errors, while existing structures usually lack a convenient and reliable fine-tuning mechanism.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] A steel pipe cutting device for cold rolling forming of steel pipes includes a cutting table, a movable frame on the cutting table, a cutting assembly on the movable frame, a clamping seat at the end of the movable frame, and two clamping assemblies mounted on the clamping seat. Each clamping assembly includes a movable jaw and a fixed jaw. Two first cylinders are also mounted on the clamping seat, with the ends of the two first cylinders respectively engaging with the two movable jaws. A positioning and mounting assembly is provided between the first cylinders and the clamping seat. The positioning and mounting assembly is used to install the first cylinders and the movable jaws, and can fine-tune the first cylinders according to the degree of engagement between the movable jaws and the first cylinders.

[0006] Furthermore, the positioning and mounting assembly includes two docking seats, which are fixedly connected to the clamping seat. Each docking seat has an insertion slot, and a U-shaped insertion seat is inserted into each insertion slot. Multiple insertion rods are inserted into each insertion seat, and the multiple insertion rods are fixedly connected to the movable gripper. A locking assembly is provided between the two insertion seats and the clamping seat. A mounting seat is inserted into each insertion seat. The first cylinder is fixedly connected to the mounting seat, and a connector is fixedly connected to the piston rod end of the first cylinder. A connecting seat is fixedly connected to the surface of the movable gripper, and a slot is provided on the connecting seat. The connector is inserted into the slot. A fourth pin is inserted into both ends of the top of the mounting seat, and the two fourth pins are fixedly connected to both ends of the top of the insertion seat. A first fastening nut is threaded onto the surface of the fourth pin, and a support spring is also sleeved on the surface of the fourth pin. The two ends of the support spring contact the mounting seat and the insertion seat, respectively.

[0007] Furthermore, the connector includes a horizontal section and two vertical sections, which are inserted into two connector slots. The connector slots include a first clearance opening and a second clearance opening. Multiple connector rods are respectively inserted into the two vertical sections, and the first clearance opening provides clearance for the connector rods.

[0008] Furthermore, both sides of the mounting base are provided with docking grooves, and both sides of the mounting base are slidably inserted into the vertical section through the docking grooves.

[0009] Furthermore, the locking assembly includes a first pin, which is fixedly connected to the bottom of the transverse section, passes through the clamping seat and extends to the bottom end of the clamping seat, and a second fastening nut is threadedly connected to the end of the first pin.

[0010] Furthermore, the fixed gripper is inserted into the clamping seat, and a positioning component is provided between the fixed gripper and the clamping seat. The positioning component includes a second pin and a third pin. The second pin is fixedly connected to the surface of the clamping seat, and the third pin is fixedly connected to the surface of the fixed gripper. A limiting member is sleeved on the surface of the second pin, and a mating sleeve is opened at the top of the limiting member. The mating sleeve is sleeved on the end of the third pin. A third fastening nut is threaded onto the surface of the second pin. The limiting member presses against the clamping seat and the fixed gripper under the fastening action of the third fastening nut.

[0011] Furthermore, the limiting member includes a lower pressing body and an upper connecting body. The lower pressing body is sleeved on the surface of the second pin, the upper connecting body is fixedly connected to the mating sleeve, and the third fastening nut presses against the surface of the lower pressing body.

[0012] Furthermore, an anti-loosening component is provided between the third fastening nut and the second fastening nut. The anti-loosening component includes an anti-disengagement sleeve, an anti-disengagement ring, and two mating pins. The anti-disengagement ring is hooked onto the second fastening nut, and an overlapping plate is fixedly connected to the end of the anti-disengagement ring. The two mating pins are fixedly connected to the surface of the clamping seat, and the overlapping plate is sleeved on the surface of the two mating pins. The anti-disengagement sleeve is sleeved on the third fastening nut, and a pull screw is threadedly connected between the anti-disengagement sleeve and the anti-disengagement ring.

[0013] Furthermore, the anti-detachment sleeve is L-shaped, a first mating threaded sleeve is fixedly connected to the bottom of the anti-detachment sleeve, a second mating threaded sleeve is fixedly connected to the bottom of the anti-detachment ring, one end of the pulling screw is threadedly connected to the first mating threaded sleeve, and the other end of the pulling screw is threadedly connected to the second mating threaded sleeve.

[0014] Furthermore, the cutting assembly includes a connecting rail, which is fixedly connected to the surface of the movable frame. A second cylinder is fixedly connected to the surface of the connecting rail. A sliding frame is fixedly connected to the piston rod end of the second cylinder. The sliding frame is slidably inserted into the connecting rail. A rotating shaft is rotatably connected to the end of the sliding frame. A cutting disc is fixedly connected to the end of the rotating shaft. A first transmission disc is fixedly connected to the end of the rotating shaft away from the cutting disc. A first motor is also fixedly mounted on the sliding frame. A second transmission disc is fixedly connected to the output end of the first motor. A transmission belt drives between the second transmission disc and the first transmission disc.

[0015] Compared with the prior art, the steel pipe cutting device for cold rolling forming of steel pipes described in this invention has the following advantages:

[0016] (1) The invention provides a steel pipe cutting device for cold rolling forming of steel pipes. By setting up a positioning and installation assembly consisting of a plug-in seat, a mounting seat, a fourth pin, and a first fastening nut, the first cylinder can be initially positioned during installation. Then, while connecting the mounting seat and the plug-in seat, the mating part of the first cylinder can be attempted to align with the slot on the movable gripper. If the alignment is incomplete, the position of the mounting seat relative to the plug-in seat can be slightly adjusted by tightening the first fastening nut until the mating part is fully inserted into the slot. This enables rapid fine-tuning of the installation position of the first cylinder, solves the problem of the cylinder and the movable gripper connection point being difficult to align completely, and improves installation efficiency and assembly accuracy.

[0017] (2) A steel pipe cutting device for cold rolling forming of steel pipes is invented. By setting an independent locking component and a second fastening nut, the plug-in seat is fixed on the clamping seat, and the fixed clamping claw is fixed on the clamping seat by the positioning component, the third pin, the limiting component and the third fastening nut. This realizes the modular and detachable installation of the movable clamping claw and the fixed clamping claw, which is convenient for individual maintenance or replacement.

[0018] (3) A steel pipe cutting device for cold rolling forming of steel pipe is invented. By setting an anti-loosening component connecting the second fastening nut and the third fastening nut, the anti-loosening sleeve and the anti-loosening ring are tightened by the pull screw, thereby pressing the third fastening nut and the second fastening nut respectively. This effectively prevents the fastening nut from loosening under long-term vibration conditions and significantly improves the reliability and safety of the clamping mechanism.

[0019] (4) The invention provides a steel pipe cutting device for cold rolling forming of steel pipes. The overall structure is reasonably designed and the cutting, clamping and moving functions are coordinated. It realizes stable clamping, synchronous movement and cutting of steel pipes. It is particularly suitable for continuous fixed-length cutting operations on the cold rolling forming line of steel pipes. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of the first overall structure of a steel pipe cutting device for cold rolling forming of steel pipes according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0023] Figure 3 This is a schematic diagram of the clamping seat of a steel pipe cutting device for cold rolling forming of steel pipes according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the first structure of the first cylinder, mounting base, insertion base, and movable gripper of a steel pipe cutting device for cold rolling forming of steel pipes according to an embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the second structure of a steel pipe cutting device for cold rolling forming of steel pipes according to an embodiment of the present invention, comprising a first cylinder, a mounting base, a connector, and a movable gripper.

[0026] Figure 6 This is a schematic diagram of the structure of the fixed gripper of a steel pipe cutting device for cold rolling forming of steel pipes according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the clamping seat and moving frame of a steel pipe cutting device for cold rolling forming of steel pipes according to an embodiment of the present invention;

[0028] Figure 8 for Figure 7 Enlarged view of section B;

[0029] Figure 9 This is a schematic diagram of the structure of a limiting component of a steel pipe cutting device for cold rolling forming of steel pipes according to an embodiment of the present invention;

[0030] Figure 10 This is a schematic diagram of the clamping seat and locking assembly of a steel pipe cutting device for cold rolling forming of steel pipes according to an embodiment of the present invention;

[0031] Figure 11 This is a schematic diagram of the anti-loosening component of a steel pipe cutting device for cold rolling forming of steel pipes according to an embodiment of the present invention;

[0032] Figure 12 This is a schematic diagram of the moving frame and moving seat of a steel pipe cutting device for cold rolling forming of steel pipes according to an embodiment of the present invention;

[0033] Figure 13 This is a schematic diagram of the second overall structure of a steel pipe cutting device for cold rolling forming of steel pipes according to an embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1-Cutting table; 101-Railway; 2-Moving frame; 201-Mounting cavity; 202-Leaning slot; 203-Moving seat; 204-Guide frame; 205-Guide roller; 3-Clamping seat; 4-Moving gripper; 5-Fixed gripper; 501-Mating block; 502-Mating groove; 6-First cylinder; 601-Mating joint; 7-Mating seat; 701-Insertion groove; 7011-First clearance opening; 7012-Second clearance opening; 8-Insertion seat; 801-Horizontal section; 802-Vertical section; 9-Insertion rod; 10-Mounting seat; 1001-Mating slide; 11-Fourth pin; 12-First fastening nut; 13-Support spring; 14-Locking assembly; 1401-First pin; 1402-Second fastening nut; 15-Connecting seat; 1501-Slot; 16-Positioning assembly; 160 1-Second pin; 1602-Third pin; 1603-Limiting component; 16031-Lower pressing body; 16032-Upper connecting body; 16033-Matching sleeve; 1604-Third fastening nut; 17-Anti-loosening component; 1701-Anti-disengagement sleeve; 17011-First mating threaded sleeve; 1702-Anti-disengagement ring; 17021-Second mating threaded sleeve; 17022-Overlap plate; 1703- 1704 - Connecting pin; 18 - Pulling screw; 19 - Cutting assembly; 1001 - Connecting rail; 1102 - Second cylinder; 1203 - Sliding frame; 1304 - Rotating shaft; 1805 - Cutting disc; 1806 - First transmission disc; 1807 - First motor; 1808 - Second transmission disc; 1909 - Transmission belt; 1000 - Second threaded rod; 200 - Adjusting screw sleeve; 210 - Second motor; 220 - Steel pipe. Detailed Implementation

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] like Figures 1 to 13 As shown, a steel pipe 22 cold rolling forming processing steel pipe 22 cutting device includes a cutting table 1, a movable frame 2 on the cutting table 1, a cutting assembly 18 on the movable frame 2, and a clamping seat 3 at the end of the movable frame 2. The clamping seat 3 is equipped with two clamping assemblies, each including a movable jaw 4 and a fixed jaw 5. The clamping seat 3 also has two first cylinders 6, the ends of which are respectively connected to the two movable jaws 4. A positioning and mounting assembly is provided between the first cylinders 6 and the clamping seat 3. The positioning and mounting assembly is used to install the first cylinders 6 and the movable jaws 4, and can fine-tune the first cylinders 6 according to the degree of connection between the movable jaws 4 and the first cylinders 6. The steel pipe 22 is positioned between the movable jaws 4 and the fixed jaws 5. The first cylinders 6 push the movable jaws 4 to clamp the steel pipe 22. Then, while the movable frame 2 keeps the clamping assembly and the steel pipe 22 moving synchronously, the cutting assembly 18 cuts the steel pipe 22, completing the cutting process.

[0041] Specifically, a track 101 is provided on the top of the cutting table 1, and the movable frame 2 is slidably mounted on the track 101.

[0042] During the installation of the first cylinder 6 and the clamping assembly, the movable gripper 4 needs to be docked with the first cylinder 6. In order for the connection point between the first cylinder 6 and the movable gripper 4 to be successfully docked, the positioning and installation assembly can make fine adjustments according to the position of the connection point of the movable gripper 4 during the positioning and installation of the first cylinder 6, so as to meet the connection between the first cylinder 6 and the movable gripper 4. This achieves both the positioning and installation of the first cylinder 6 and the fine adjustment according to the actual installation situation to meet the docking of the movable gripper 4.

[0043] The cutting assembly 18 includes a connecting rail 1801, which is fixedly connected to the surface of the movable frame 2. A second cylinder 1802 is fixedly connected to the surface of the connecting rail 1801. A sliding frame 1803 is fixedly connected to the piston rod end of the second cylinder 1802. The sliding frame 1803 is slidably inserted into the connecting rail 1801. A rotating shaft 1804 is rotatably connected to the end of the sliding frame 1803. A cutting disc 1805 is fixedly connected to the end of the rotating shaft 1804. A first transmission disc 1806 is fixedly connected to the end of the rotating shaft 1804 away from the cutting disc 1805. A first motor 1807 is also fixedly mounted on the sliding frame 1803. A second transmission disc 1808 is fixedly connected to the output end of the first motor 1807. A transmission belt 1809 is drivingly connected between the second transmission disc 1808 and the first transmission disc 1806.

[0044] The movable frame 2 has a mounting cavity 201, in which the cutting disc 1805 is located. A clearance slot 202 is provided on the side wall of the movable frame 2 to provide clearance space for the rotating shaft 1804. A movable seat 203 is fixedly connected to the bottom of the movable frame 2. The movable seat 203 is attached to the slope surface of the cutting table 1 and is used to support the movable frame 2. Guide frames 204 are fixedly connected to both ends of the movable seat 203. Two guide rollers 205 are rotatably connected to each of the two guide frames 204. The steel pipe 22 passes between the two guide rollers 205 on the same guide frame 204 to obtain rolling support from the guide rollers 205.

[0045] A second threaded rod 19 is rotatably connected to the side of the cutting table 1. An adjusting sleeve 20 is threadedly connected to the surface of the second threaded rod 19. The adjusting sleeve 20 is fixedly connected to the surface of the moving frame 2. A second motor 21 is fixedly installed on the surface of the moving frame 2. The output end of the second motor 21 is fixedly connected to the end of the second threaded rod 19. When the second motor 21 is started, it will drive the second threaded rod 19 to rotate. The threaded rod 19 drives the adjusting sleeve 20, which in turn drives the moving frame 2 to move synchronously. This causes the moving frame 2 to drive the clamping seat 3 and the clamping assembly to move synchronously, and thus move synchronously with the clamped steel pipe 22, providing conditions for cutting.

[0046] During operation, the steel pipe 22 is placed between the fixed gripper 5 and the movable gripper 4, positioned on the guide roller 205 of the guide frame 204. The two first cylinders 6 are activated, pushing the two movable grippers 4 to move and clamp the steel pipe 22 between the movable grippers 4 and the fixed gripper 5. The first motor 1807 and the second cylinder 1802 are activated. The first motor 1807 drives the rotating shaft 1804 and the cutting disc 1805 to rotate at high speed via the transmission belt 1809. The second cylinder 1802 pushes the telescopic frame 1803 and the cutting disc 1805 to feed radially toward the steel pipe 22. Simultaneously, the second motor 21 is activated, driving the moving frame 2 to move the clamped steel pipe 22 synchronously with the cutting disc 1805. The rotating cutting disc 1805 completes the cutting of the steel pipe 22 during the feeding motion. After cutting, the second cylinder 1802 retracts, the first cylinder 6 releases, and the cut steel pipe segment 22 can be removed.

[0047] The positioning and mounting assembly includes two docking seats 7, which are fixedly connected to the clamping seat 3. Each docking seat 7 has an insertion slot 701, into which a U-shaped insertion seat 8 is inserted. Multiple insertion rods 9 are inserted into each insertion seat 8, and these rods 9 are fixedly connected to a movable gripper 4. A locking assembly 14 is provided between the two insertion seats 8 and the clamping seat 3. A mounting seat 10 is inserted into each insertion seat 8. A first cylinder 6 is fixedly connected to the mounting seat 10, and the piston rod end of the first cylinder 6 is fixedly connected to... The connector 601 has a connecting seat 15 fixedly connected to the surface of the movable gripper 4. The connecting seat 15 has a slot 1501. The connector 601 is inserted into the slot 1501. The top two ends of the mounting base 10 are each inserted with a fourth pin 11. The two fourth pins 11 are fixedly connected to the top two ends of the plug-in base 8. The surface of the fourth pin 11 is threaded with a first fastening nut 12. The surface of the fourth pin 11 is also fitted with a support spring 13. The two ends of the support spring 13 are in contact with the mounting base 10 and the plug-in base 8, respectively. During the positioning and installation process, the plug-in base 8 is inserted into the plug-in slot 701 on the docking base 7. The docking base 7 is locked by the locking component 14, and the movable clamp 4 is supported by the plug-in rod 9. Then, the mounting base 10, which is fixed with the first cylinder 6, is inserted into the plug-in base 8 and continues to mate with the two fourth pins 11 to achieve insertion. During the process of inserting the mounting base 10 into the plug-in base 8, the mating joint 601 on the first cylinder 6 will mate with the slot 1501 on the connecting base 15. If the mating is not complete due to tolerance, the first fastening nut 12 can be loosened. At this time, under the action of the support spring 13, the mounting base 10 still maintains contact with the plug-in base 8 but can make a small range of up and down movements. Adjust the position of the mounting base 10 until the mating joint 601 is smoothly and completely inserted into the slot 1501, and then tighten the first fastening nut 12 to complete the accurate positioning and installation of the first cylinder 6.

[0048] Specifically, the connector 8 includes a horizontal section 801 and two vertical sections 802. The two vertical sections 802 are inserted into two connector slots 701. The connector slots 701 include a first clearance opening 7011 and a second clearance opening 7012. Multiple connector rods 9 are respectively inserted into the two vertical sections 802. The first clearance opening 7011 provides clearance for the connector rods 9. By connecting the connector 8 with the two connector slots 701, the connector 8 can be disassembled, thereby allowing the movable gripper 4 to be disassembled. The support spring 13 is located between the mounting base 10 and the vertical sections 802 of the connector 8, providing a certain amount of preload and buffering.

[0049] Both sides of the mounting base 10 are provided with docking grooves 1001, and both sides of the mounting base 10 are slidably inserted into the vertical section 802 through the docking grooves 1001. Through the insertion of the docking grooves 1001 and the vertical section 802, the insertion seat 8 and the mounting base 10 are further connected, providing stable support for the mounting base 10.

[0050] The locking assembly 14 includes a first pin 1401, which is fixedly connected to the bottom of the transverse section 801. The first pin 1401 passes through the clamping seat 3 and extends to the bottom end of the clamping seat 3. A second fastening nut 1402 is threaded to the end of the first pin 1401. By tightening the second fastening nut 1402, the first pin 1401 is locked onto the clamping seat 3, thereby locking the connector 8 into the connector groove 701 on the mating seat 7.

[0051] When it is necessary to disassemble the movable gripper 4, loosen the second fastening nut 1402 to release the lock between the first pin 1401 and the clamping seat 3, and the connector 8 can be removed. The connector rod 9 can be removed from the connector 8 to disassemble the movable gripper 4.

[0052] like Figure 2 , Figure 6 , Figure 7 , Figure 8 , Figure 10 , Figure 11 and Figure 12 As shown, in one embodiment, the fixed gripper 5 is inserted into the clamping seat 3. A positioning component 16 is provided between the fixed gripper 5 and the clamping seat 3. The positioning component 16 includes a second pin 1601 and a third pin 1602. The second pin 1601 is fixedly connected to the surface of the clamping seat 3, and the third pin 1602 is fixedly connected to the surface of the fixed gripper 5. A limiting member 1603 is sleeved on the surface of the second pin 1601. A mating sleeve 16033 is opened at the top of the limiting member 1603. The mating sleeve 16033 is sleeved on the end of the third pin 1602. A third fastening nut 1604 is threadedly connected to the surface of the second pin 1601. Under the fastening action of the third fastening nut 1604, the limiting member 1603 presses against the clamping seat 3 and the fixed gripper 5.

[0053] The limiting member 1603 includes a lower pressing body 16031 and an upper connecting body 16032. The lower pressing body 16031 is sleeved on the surface of the second pin 1601, the upper connecting body 16032 is fixedly connected to the mating sleeve 16033, and the third fastening nut 1604 presses against the surface of the lower pressing body 16031.

[0054] Specifically, the clamping base 3 has a docking groove 502, and the bottom of the fixed clamping claw 5 is fixedly connected to a docking block 501, which is inserted into the docking groove 502.

[0055] During the positioning and fixing of the clamping claw 5, the docking block 501 at the bottom of the clamping seat 3 is first inserted into the docking groove 502. Then, the limiting member 1603 is sleeved on the second pin 1601, and the docking sleeve 16033 is sleeved on the end of the third pin 1602. Then, the third fastening nut 1604 is threadedly connected to the second pin 1601 until it is tight, so that the limiting member 1603 is tight against the clamping claw 5 and the clamping seat 3, thereby fixing the clamping claw 5 on the clamping seat 3. When the clamping claw 5 needs to be maintained, the second fastening nut 1402 can be loosened and the limiting member 1603 can be removed to remove the clamping claw 5. The clamping claw 5 can be disassembled separately for convenient independent maintenance.

[0056] An anti-loosening component 17 is provided between the third fastening nut 1604 and the second fastening nut 1402. The anti-loosening component 17 includes an anti-disengagement sleeve 1701, an anti-disengagement ring 1702, and two mating pins 1703. The anti-disengagement ring 1702 is hooked onto the second fastening nut 1402. An overlapping plate 17022 is fixedly connected to the end of the anti-disengagement ring 1702. The two mating pins 1703 are fixedly connected to the surface of the clamping seat 3. The overlapping plate 17022 is sleeved on the surface of the two mating pins 1703. The anti-disengagement sleeve 1701 is sleeved on the third fastening nut 1604. A pull screw 1704 is threadedly connected between the anti-disengagement sleeve 1701 and the anti-disengagement ring 1702.

[0057] The anti-loosening sleeve 1701 is L-shaped. A first mating threaded sleeve 17011 is fixedly connected to the bottom of the anti-loosening sleeve 1701, and a second mating threaded sleeve 17021 is fixedly connected to the bottom of the anti-loosening ring 1702. One end of the pulling screw 1704 is threadedly connected to the first mating threaded sleeve 17011, and the other end is threadedly connected to the second mating threaded sleeve 17021. After the third fastening nut 1604 is threadedly connected to the second pin 1601, and the second fastening nut 1402 is threadedly mated to the first pin 1401, the anti-loosening sleeve 1701 is fitted onto the third fastening nut 1604. Rotating the pulling screw 1704 simultaneously drives the first mating threaded sleeve 17011 and the second mating threaded sleeve 17021, causing them to move closer together until the anti-loosening sleeve 1701... 1. The third fastening nut 1604 is fully tightened, and the anti-loosening ring 1702 abuts against the second fastening nut 1402 to prevent the second fastening nut 1402 and the third fastening nut 1604 from loosening. The anti-loosening component 17 effectively prevents the positioning component 16 of the fixed gripper 5 and the locking component 14 of the movable gripper 4 from loosening due to vibration by constraining the second fastening nut 1402 and the third fastening nut 1604, thereby maintaining the overall rigidity and connection reliability of the clamping mechanism under dynamic working conditions.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A steel pipe cutting device for cold rolling forming of steel pipes, comprising a cutting table (1), a movable frame (2) disposed on the cutting table (1), and a cutting assembly (18) disposed on the movable frame (2), characterized in that: The end of the movable frame (2) is provided with a clamping seat (3). Two clamping components are installed on the clamping seat (3). The clamping components include movable jaws (4) and fixed jaws (5). The clamping seat (3) is also provided with two first cylinders (6). The ends of the two first cylinders (6) are respectively connected to the two movable jaws (4). A positioning and installation component is provided between the first cylinders (6) and the clamping seat (3). The positioning and installation component is used to install the first cylinders (6) and the movable jaws (4). It can also finely adjust the first cylinders (6) according to the degree of connection between the movable jaws (4) and the first cylinders (6).

2. The steel pipe cutting device for cold rolling forming of steel pipes according to claim 1, characterized in that: The positioning and mounting assembly includes two docking seats (7), which are fixedly connected to the clamping seat (3). Each docking seat (7) has an insertion slot (701), and a U-shaped insertion seat (8) is inserted into each insertion slot (701). Multiple insertion rods (9) are inserted into each insertion seat (8), and the multiple insertion rods (9) are fixedly connected to the movable gripper (4). A locking assembly (14) is provided between the two insertion seats (8) and the clamping seat (3). A mounting seat (10) is inserted into each insertion seat (8). The first cylinder (6) is fixedly connected to the mounting seat (10), and the piston rod end of the first cylinder (6) is fixedly connected to... The connector (601) has a connecting seat (15) fixedly connected to the surface of the movable gripper (4). The connecting seat (15) has a slot (1501) and the connector (601) is inserted into the slot (1501). The top two ends of the mounting base (10) are each inserted with a fourth pin (11). The two fourth pins (11) are fixedly connected to the top two ends of the plug-in base (8). The surface of the fourth pin (11) is threaded with a first fastening nut (12). The surface of the fourth pin (11) is also fitted with a support spring (13). The two ends of the support spring (13) are in contact with the mounting base (10) and the plug-in base (8) respectively.

3. The steel pipe cutting device for cold rolling forming of steel pipes according to claim 2, characterized in that: The connector (8) includes a horizontal section (801) and two vertical sections (802). The two vertical sections (802) are inserted into two connector slots (701). The connector slots (701) include a first clearance opening (7011) and a second clearance opening (7012). Multiple connector rods (9) are respectively inserted into the two vertical sections (802). The first clearance opening (7011) makes way for the connector rods (9).

4. The steel pipe cutting device for cold rolling forming of steel pipes according to claim 3, characterized in that: Both sides of the mounting base (10) are provided with docking grooves (1001), and both sides of the mounting base (10) are slidably connected to the vertical section (802) through the docking grooves (1001).

5. A steel pipe cutting device for cold rolling forming of steel pipes according to claim 2, characterized in that: The locking assembly (14) includes a first pin (1401) which is fixedly connected to the bottom of the transverse section (801). The first pin (1401) passes through the clamping seat (3) and extends to the bottom end of the clamping seat (3). The end of the first pin (1401) is threadedly connected to a second fastening nut (1402).

6. A steel pipe cutting device for cold rolling forming of steel pipes according to claim 2, characterized in that: The fixed jaw (5) is inserted into the clamping seat (3). A positioning component (16) is provided between the fixed jaw (5) and the clamping seat (3). The positioning component (16) includes a second pin (1601) and a third pin (1602). The second pin (1601) is fixedly connected to the surface of the clamping seat (3). The third pin (1602) is fixedly connected to the surface of the fixed jaw (5). A limiting member (1603) is sleeved on the surface of the second pin (1601). A mating sleeve (16033) is opened at the top of the limiting member (1603). The mating sleeve (16033) is sleeved on the end of the third pin (1602). A third fastening nut (1604) is threaded on the surface of the second pin (1601). The limiting member (1603) presses against the clamping seat (3) and the fixed jaw (5) under the fastening action of the third fastening nut (1604).

7. A steel pipe cutting device for cold rolling forming of steel pipes according to claim 6, characterized in that: The limiting member (1603) includes a lower pressing body (16031) and an upper connecting body (16032). The lower pressing body (16031) is sleeved on the surface of the second pin (1601). The upper connecting body (16032) is fixedly connected to the mating sleeve (16033). The third fastening nut (1604) presses against the surface of the lower pressing body (16031).

8. A steel pipe cutting device for cold rolling forming of steel pipes according to claim 6, characterized in that: An anti-loosening component (17) is provided between the third fastening nut (1604) and the second fastening nut (1402). The anti-loosening component (17) includes an anti-disengagement sleeve (1701), an anti-disengagement ring (1702), and two mating pins (1703). The anti-disengagement ring (1702) is hooked onto the second fastening nut (1402). An overlapping plate (17022) is fixedly connected to the end of the anti-disengagement ring (1702). The two mating pins (1703) are fixedly connected to the surface of the clamping seat (3). The overlapping plate (17022) is sleeved on the surface of the two mating pins (1703). The anti-disengagement sleeve (1701) is sleeved on the third fastening nut (1604). A pulling screw (1704) is threadedly connected between the anti-disengagement sleeve (1701) and the anti-disengagement ring (1702).

9. A steel pipe cutting device for cold rolling forming of steel pipes according to claim 8, characterized in that: The anti-detachment sleeve (1701) is L-shaped. The bottom of the anti-detachment sleeve (1701) is fixedly connected to a first mating threaded sleeve (17011). The bottom of the anti-detachment ring (1702) is fixedly connected to a second mating threaded sleeve (17021). One end of the pulling screw (1704) is threadedly connected to the first mating threaded sleeve (17011), and the other end of the pulling screw (1704) is threadedly connected to the second mating threaded sleeve (17021).

10. A steel pipe cutting device for cold rolling forming of steel pipes according to any one of claims 1 to 9, characterized in that: The cutting assembly (18) includes a connecting rail (1801) fixedly connected to the surface of the movable frame (2). A second cylinder (1802) is fixedly connected to the surface of the connecting rail (1801). A sliding frame (1803) is fixedly connected to the piston rod end of the second cylinder (1802). The sliding frame (1803) is slidably inserted into the connecting rail (1801). A rotating shaft (1804) is rotatably connected to the end of the sliding frame (1803). A cutting disc (1805) is fixedly connected to the end of the rotating shaft (1804). A first transmission disc (1806) is fixedly connected to the end of the rotating shaft (1804) away from the cutting disc (1805). A first motor (1807) is also fixedly installed on the sliding frame (1803). A second transmission disc (1808) is fixedly connected to the output end of the first motor (1807). A transmission belt (1809) is connected between the second transmission disc (1808) and the first transmission disc (1806).

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