A steel pipe cutting device for steel pipe cold roll forming machining

Abstract

The application provides a steel pipe cutting device for steel pipe cold rolling forming processing, which comprises a cutting table, a moving frame arranged on the cutting table, a cutting assembly arranged on the moving frame, a clamping seat arranged at the end of the moving frame, two clamping assemblies installed on the clamping seat, the clamping assembly comprising a movable clamping jaw and a fixed clamping jaw, two first air cylinders arranged on the clamping seat, and the ends of the two first air cylinders being respectively connected with the two movable clamping jaws, and a positioning installation assembly arranged between the first air cylinder and the clamping seat. In the application, if the movable clamping jaw and the first air cylinder are not completely inserted, the position of the mounting seat relative to the insertion seat can be slightly adjusted by rotating the first fastening nut until the butt joint is completely inserted into the insertion slot, so that the first air cylinder installation position is quickly and slightly adjusted, the problem that the connection point of the air cylinder and the movable clamping jaw is difficult to completely butt joint is solved, and the installation efficiency and assembly accuracy are improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of steel pipe processing equipment, in particular to a steel pipe cutting device for steel pipe cold rolling forming processing. BACKGROUND

[0002] In the process of steel pipe cold rolling forming processing, it is often necessary to cut the long-size steel pipe to a fixed length. The existing steel pipe cutting device usually includes a cutting table, a moving frame and a cutting assembly arranged on the moving frame. In order to fix the steel pipe during cutting and make it move synchronously with the cutting assembly, a clamping mechanism is often arranged. The traditional clamping mechanism usually adopts a cylinder to drive a movable clamp jaw to cooperate with a fixed clamp jaw to clamp the steel pipe. However, when installing the cylinder and the movable clamp jaw, the connection point between the end of the cylinder piston rod and the movable clamp jaw needs to be fully docked, otherwise it is difficult to connect reliably or affects the clamping effect. Due to the existence of manufacturing and assembly errors, the installation position of the cylinder often needs to be adjusted, and the existing structure usually lacks a convenient and reliable adjustment mechanism, resulting in low installation efficiency, difficult docking, and the connection part is prone to looseness due to vibration and other factors after long-term use, affecting the clamping stability. SUMMARY

[0003] Therefore, the present application aims to provide a steel pipe cutting device for steel pipe cold rolling forming processing to solve the technical problem that due to the existence of manufacturing and assembly errors, the installation position of the cylinder often needs to be adjusted, and the existing structure usually lacks a convenient and reliable adjustment mechanism.

[0004] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0005] A steel pipe cutting device for steel pipe cold rolling forming processing, comprising a cutting table, a moving frame is arranged on the cutting table, a cutting assembly is arranged on the moving frame, a clamping seat is arranged at the end of the moving frame, two clamping assemblies are installed on the clamping seat, the clamping assembly comprises a movable clamp jaw and a fixed clamp jaw, two first cylinders are further arranged on the clamping seat, the ends of the two first cylinders are respectively docked with the two movable clamp jaws, a positioning and installation assembly is arranged between the first cylinder and the clamping seat, the positioning and installation assembly is used for installing the first cylinder and the movable clamp jaw, and the first cylinder can be adjusted according to the docking degree of the movable clamp jaw and the first cylinder.

[0006] Further, the positioning and mounting assembly comprises two docking seats fixedly connected to the clamping seat, two insertion grooves are formed in the two docking seats, and U-shaped insertion seats are inserted into the two insertion grooves, a plurality of insertion rods are inserted into the insertion seats, the insertion rods are fixedly connected to the movable clamping jaw, a locking assembly is arranged between the two insertion seats and the clamping seat, an installation seat is inserted into the insertion seat, the first cylinder is fixedly connected to the installation seat, a docking head is fixedly connected to the end of the piston rod of the first cylinder, a connecting seat is fixedly connected to the surface of the movable clamping jaw, an insertion slot is formed in the connecting seat, the docking head is inserted into the insertion slot, fourth bolts are inserted into the two ends of the top of the installation seat, the two fourth bolts are fixedly connected to the two ends of the top of the insertion seat, first fastening nuts are threadedly connected to the surface of the fourth bolt, and supporting springs are arranged on the surface of the fourth bolt and in contact with the installation seat and the insertion seat.

[0007] Further, the insertion seat comprises a horizontal section and two vertical sections, the two vertical sections are inserted into the two insertion grooves, the insertion groove comprises a first clearance opening and a second clearance opening, the plurality of insertion rods are respectively inserted into the two vertical sections, and the first clearance opening provides clearance for the insertion rod.

[0008] Further, the two sides of the installation seat are provided with docking sliding grooves, and the two sides of the installation seat are slidably inserted into the vertical sections through the docking sliding grooves.

[0009] Further, the locking assembly comprises a first bolt, the first bolt is fixedly connected to the bottom of the horizontal section, the first bolt penetrates 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 bolt.

[0010] Further, the fixed clamping jaw is inserted into the clamping seat, a positioning assembly is arranged between the fixed clamping jaw and the clamping seat, the positioning assembly comprises a second bolt and a third bolt, the second bolt is fixedly connected to the surface of the clamping seat, the third bolt is fixedly connected to the surface of the fixed clamping jaw, a limiting piece is arranged on the surface of the second bolt, a docking sleeve is formed at the top end of the limiting piece, the third bolt is threadedly connected to the surface of the second bolt, and the limiting piece is pressed against the clamping seat and the fixed clamping jaw under the fastening action of the third fastening nut.

[0011] Further, the limiting piece comprises a lower pressing body and an upper connecting body, the lower pressing body is sleeved on the surface of the second bolt, the upper connecting body is fixedly connected to the docking sleeve, and the third fastening nut is pressed against the surface of the lower pressing body.

[0012] Further, the third fastening nut and the second fastening nut are provided with an anti-loosening assembly, the anti-loosening assembly comprises an anti-coming-off sleeve, an anti-coming-off ring and two butt pins, the anti-coming-off ring is hung on the second fastening nut, the end of the anti-coming-off ring is fixedly connected with a lap plate, the two butt pins are fixedly connected on the surface of the clamping seat, the lap plate is sleeved on the surface of the two butt pins, the anti-coming-off sleeve is sleeved on the third fastening nut, and the anti-coming-off sleeve and the anti-coming-off ring are threadedly connected with a pulling screw.

[0013] Further, the anti-coming-off sleeve is L-shaped, the bottom of the anti-coming-off sleeve is fixedly connected with a first butt screw, the bottom of the anti-coming-off ring is fixedly connected with a second butt screw, one end of the pulling screw is threadedly connected with the first butt screw, and the other end of the pulling screw is threadedly connected with the second butt screw.

[0014] Further, the cutting assembly comprises a connecting rail, the connecting rail is fixedly connected on the surface of the moving frame, a second cylinder is fixedly connected on the surface of the connecting rail, the end of the piston rod of the second cylinder is fixedly connected with a sliding frame, the sliding frame is slidingly inserted in the connecting rail, the end of the sliding frame is rotatably connected with a rotating shaft, the end of the rotating shaft is fixedly connected with a cutting disc, the end of the rotating shaft away from the cutting disc is fixedly connected with a first transmission disc, a first motor is also fixedly installed on the sliding frame, the output end of the first motor is fixedly connected with a second transmission disc, and the second transmission disc and the first transmission disc are transmissionally connected with a transmission belt.

[0015] Compared with the prior art, the steel pipe cutting device for steel pipe cold rolling forming machining has the following beneficial effects:

[0016] (1) The steel pipe cutting device for steel pipe cold rolling forming machining is provided with a positioning and installing assembly composed of a plug-in seat, a mounting seat, a fourth plug-in pin and a first fastening nut, when the first cylinder is installed, the first cylinder can be preliminarily positioned, then the mounting seat and the plug-in seat are connected, and the butt joint of the first cylinder and the plug-in slot on the movable clamping jaw are tried to be connected. If the plug-in is not complete, the position of the mounting seat relative to the plug-in seat can be slightly adjusted by rotating the first fastening nut, until the butt joint is completely inserted into the plug-in slot, so that the installation position of the first cylinder is quickly and slightly adjusted, the problem that the connecting point of the cylinder and the movable clamping jaw is difficult to completely connect is solved, and the installation efficiency and assembly accuracy are improved.

[0017] (2) The steel pipe cutting device for steel pipe cold rolling forming machining is provided with an independent locking assembly and a second fastening nut to fix the plug-in seat on the clamping seat, and a positioning assembly, a third plug-in pin, a limiting piece and a third fastening nut to fix the fixed clamping jaw on the clamping seat, so that the movable clamping jaw and the fixed clamping jaw are modularized and detachably installed, and are 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 A structure schematic view of a limiting piece of a steel pipe cutting device for steel pipe cold rolling forming processing according to an embodiment of the present application;

[0030] Figure 10 A structure schematic view of a clamping seat and locking assembly of a steel pipe cutting device for steel pipe cold rolling forming processing according to an embodiment of the present application;

[0031] Figure 11 A structure schematic view of an anti-loosening assembly of a steel pipe cutting device for steel pipe cold rolling forming processing according to an embodiment of the present application;

[0032] Figure 12 A structure schematic view of a moving frame and moving seat of a steel pipe cutting device for steel pipe cold rolling forming processing according to an embodiment of the present application;

[0033] Figure 13 A second overall structure schematic view of a steel pipe cutting device for steel pipe cold rolling forming processing according to an embodiment of the present application.

[0034] Explanation of reference signs:

[0035] 1-cutting table; 101-track; 2-moving frame; 201-mounting cavity; 202-giving way notch; 203-moving seat; 204-guide frame; 205-guide roller; 3-clamping seat; 4-moving clamping jaw; 5-fixed clamping jaw; 501-butting block; 502-butting groove; 6-first air cylinder; 601-butting head; 7-butting seat; 701-insertion groove; 7011-first giving way opening; 7012-second giving way opening; 8-insertion seat; 801-horizontal section; 802-vertical section; 9-insertion rod; 10-mounting seat; 1001-butting sliding groove; 11-fourth insertion pin; 12-first fastening nut; 13-supporting spring; 14-locking assembly; 1401-first insertion pin; 1402-second fastening nut; 15-connecting seat; 1501-insertion slot; 16-positioning assembly; 1601-second insertion pin; 1602-third insertion pin; 1603-limiting piece; 16031-lower pressing body; 16032-upper connecting body; 16033-butting sleeve; 1604-third fastening nut; 17-anti-loosening assembly; 1701-anti-coming-off sleeve; 17011-first butting screw sleeve; 1702-anti-coming-off ring; 17021-second butting screw sleeve; 17022-overlapping plate; 1703-butting pin; 1704-pulling screw rod; 18-cutting assembly; 1801-connecting rail; 1802-second air cylinder; 1803-sliding frame; 1804-rotation shaft; 1805-cutting disc; 1806-first transmission disc; 1807-first motor; 1808-second transmission disc; 1809-transmission belt; 19-second threaded rod; 20-adjusting screw sleeve; 21-second motor; 22-steel pipe. DETAILED DESCRIPTION

[0036] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0038] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0040] As Figures 1 to 13 shown, a steel pipe 22 cold rolling forming steel pipe 22 cutting device, including cutting table 1, cutting table 1 is provided with moving frame 2, moving frame 2 is provided with cutting assembly 18, the end of moving frame 2 is provided with clamping seat 3, clamping seat 3 is installed with two clamping assemblies, clamping assembly includes movable jaw 4 and fixed jaw 5, clamping seat 3 is also provided with two first cylinders 6, the end of two first cylinders 6 is respectively connected with two movable jaw 4, first cylinder 6 and clamping seat 3 is provided with positioning installation assembly, positioning installation assembly is used for installing first cylinder 6 and movable jaw 4, and can be adjusted according to the degree of completion of first cylinder 6 and movable jaw 4 docking. Steel pipe 22 is between movable jaw 4 and fixed jaw 5, movable jaw 4 is pushed by first cylinder 6 to clamp steel pipe 22, then, through the process of moving frame 2 keeping clamping assembly and steel pipe 22 synchronous movement, cutting is carried out through cutting assembly 18, the cutting of steel pipe 22 is completed;

[0041] Specifically, the top of cutting table 1 is provided with track 101, and moving frame 2 is slidingly arranged on track 101.

[0042] In the process of installing first cylinder 6 and clamping assembly, the movable jaw 4 and the first cylinder 6 need to be connected. In order to make the connecting point of the first cylinder 6 and the movable jaw 4 connect smoothly, the positioning installation assembly can be adjusted according to the connecting point position of the movable jaw 4 during the positioning and installation of the first cylinder 6, so as to satisfy the connection of the first cylinder 6 and the movable jaw 4, that is, to realize the positioning and installation of the first cylinder 6, and to realize the adjustment according to the actual installation condition, so as to satisfy the connection of the movable jaw 4.

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

[0044] The moving frame 2 has a mounting cavity 201 in which the cutting disc 1805 is located, a side wall of the moving frame 2 is provided with a clearance notch 202 for providing clearance space for the rotating shaft 1804, the bottom of the moving frame 2 is fixedly connected with a moving base 203 abutting against the inclined surface of the cutting table 1, the moving base 203 is used for supporting the moving frame 2, and both ends of the moving base 203 are fixedly connected with two guide frames 204, both of which are rotatably connected with two guide rollers 205, and the steel pipe 22 passes between the two guide rollers 205 on the same guide frame 204 to be supported by the rolling of the guide rollers 205.

[0045] The side surface of the cutting table 1 is rotatably connected with a second threaded rod 19, the surface of the second threaded rod 19 is threadedly connected with an adjusting sleeve 20 fixedly connected to the surface of the moving frame 2, the surface of the moving frame 2 is fixedly installed with a second motor 21, the output end of the second motor 21 is fixedly connected with the end of the second threaded rod 19, the second motor 21 is started to drive the second threaded rod 19 to rotate, the second threaded rod 19 threadedly drives the adjusting sleeve 20 to synchronously drive the moving frame 2 to move, so that the moving frame 2 drives the clamping base 3 and the clamping assembly to synchronously move, and then synchronously move with the clamped steel pipe 22 to provide conditions for cutting.

[0046] In operation, the steel pipe 22 is placed between the fixed jaw 5 and the movable jaw 4 and on the guide rollers 205 of the guide frame 204. The two first cylinders 6 are started to push the two movable jaws 4 to move and clamp the steel pipe 22 between the movable jaw 4 and the fixed jaw 5. The first motor 1807 and the second cylinder 1802 are started, the first motor 1807 drives the rotating shaft 1804 and the cutting disc 1805 to rotate at high speed through the transmission belt 1809, and the second cylinder 1802 pushes the telescopic frame 1803 and the cutting disc 1805 to feed radially to the steel pipe 22. At the same time, the second motor 21 is started to drive the moving frame 2 to move synchronously with the clamped steel pipe 22 and the cutting disc 1805. The rotating cutting disc 1805 completes the cutting of the steel pipe 22 in the feeding motion. After cutting is completed, the second cylinder 1802 is retracted, the first cylinder 6 is loosened, and the cut steel pipe 22 section can be taken down.

[0047] The positioning and mounting assembly comprises two butt joints 7 fixedly connected to the clamping seat 3, U-shaped insertion seats 8 inserted into two insertion grooves 701 on the butt joints 7, a plurality of insertion rods 9 inserted into the insertion seats 8, the movable jaw 4 fixedly connected to the insertion rods 9, a locking assembly 14 arranged between the two insertion seats 8 and the clamping seat 3, a mounting seat 10 inserted into the insertion seat 8, the first cylinder 6 fixedly connected to the mounting seat 10, a butt joint 601 fixedly connected to the end of the piston rod of the first cylinder 6, a connecting seat 15 fixedly connected to the surface of the movable jaw 4, an insertion groove 1501 formed in the connecting seat 15, the butt joint 601 inserted into the insertion groove 1501, fourth insertion pins 11 inserted into both ends of the top of the mounting seat 10, the fourth insertion pins 11 fixedly connected to both ends of the top of the insertion seat 8, first fastening nuts 12 threadedly connected to the surface of the fourth insertion pins 11, and supporting springs 13 sleeved on the surface of the fourth insertion pins 11 and in contact with the mounting seat 10 and the insertion seat 8. In the positioning and mounting process, the insertion seat 8 is inserted into the insertion groove 701 on the butt joint 7, the butt joint 7 is locked by the locking assembly 14, the movable jaw 4 is supported by the insertion rods 9, then the mounting seat 10 with the first cylinder 6 fixedly connected thereto is inserted into the insertion seat 8 and continues to butt joint with the two fourth insertion pins 11 to realize insertion, and in the process of inserting the mounting seat 10 into the insertion seat 8, the butt joint 601 on the first cylinder 6 will butt joint with the insertion groove 1501 on the connecting seat 15, if the butt joint is not complete due to tolerance, the first fastening nut 12 can be loosened, at this time, the mounting seat 10 still maintains contact with the insertion seat 8 but can be slightly moved up and down under the action of the supporting spring 13. The position of the mounting seat 10 is adjusted until the butt joint 601 is smoothly and completely inserted into the insertion groove 1501, then the first fastening nut 12 is tightened, and the accurate positioning and mounting of the first cylinder 6 can be completed.

[0048] Specifically, the plug-in seat 8 includes a transverse section 801 and two vertical sections 802, the two vertical sections 802 are plugged into two plug-in slots 701, the plug-in slots 701 include a first accommodating opening 7011 and a second accommodating opening 7012, a plurality of plug-in rods 9 are respectively plugged into the two vertical sections 802, and the first accommodating opening 7011 accommodates the plug-in rod 9. Through the butt joint of the plug-in seat 8 and the two plug-in slots 701, the plug-in seat 8 is realized to be detachable, and then the movable clamping jaw 4 is disassembled, and the supporting spring 13 is located between the mounting seat 10 and the vertical section 802 of the plug-in seat 8, so as to provide certain pre-tightening and buffering.

[0049] Both sides of the mounting seat 10 are provided with butt joint sliding grooves 1001, and both sides of the mounting seat 10 are slidably plugged into the vertical sections 802 through the butt joint sliding grooves 1001. Through the plug-in of the butt joint sliding grooves 1001 and the vertical sections 802, the plug-in seat 8 is further connected with the mounting seat 10, and the mounting seat 10 is stably supported.

[0050] The locking assembly 14 includes a first bolt 1401, the first bolt 1401 is fixedly connected to the bottom of the transverse section 801, the first bolt 1401 penetrates through the clamping seat 3 and extends to the bottom end of the clamping seat 3, and the end of the first bolt 1401 is threadedly connected with a second fastening nut 1402. By tightening the second fastening nut 1402, the first bolt 1401 is locked on the clamping seat 3, and then the plug-in seat 8 is locked in the plug-in slot 701 of the butt joint seat 7;

[0051] When the movable clamping jaw 4 needs to be disassembled, the second fastening nut 1402 is loosened, the locking between the first bolt 1401 and the clamping seat 3 is cancelled, the plug-in seat 8 can be taken off, the plug-in rod 9 can be taken off from the plug-in seat 8, and the movable clamping jaw 4 is disassembled.

[0052] As shown in Figure 2 , Figure 6 , Figure 7 , Figure 8 , Figure 10 , Figure 11 and Figure 12 , in one embodiment, the fixed clamping jaw 5 is plugged into the clamping seat 3, and a positioning assembly 16 is arranged between the fixed clamping jaw 5 and the clamping seat 3, the positioning assembly 16 includes a second bolt 1601 and a third bolt 1602, the second bolt 1601 is fixedly connected to the surface of the clamping seat 3, the third bolt 1602 is fixedly connected to the surface of the fixed clamping jaw 5, a limiting piece 1603 is sleeved on the surface of the second bolt 1601, a butt joint sleeve 16033 is arranged at the top end of the limiting piece 1603, the butt joint sleeve 16033 is sleeved on the end of the third bolt 1602, a third fastening nut 1604 is threadedly connected to the surface of the second bolt 1601, and the limiting piece 1603 is pressed against the clamping seat 3 and the fixed clamping jaw 5 under the fastening action of the third fastening nut 1604.

[0053] The limiting piece 1603 comprises a lower pressing body 16031 and an upper connecting body 16032, the lower pressing body 16031 is sleeved on the surface of the second bolt 1601, and the upper connecting body 16032 is fixedly connected with the butt joint sleeve 16033. The third fastening nut 1604 is pressed on the surface of the lower pressing body 16031.

[0054] Specifically, the clamping seat 3 is provided with a butt joint groove 502, and the bottom of the fixed clamping jaw 5 is fixedly connected with a butt joint block 501 which is inserted into the butt joint groove 502.

[0055] In the process of positioning and fixing the fixed clamping jaw 5, first, the butt joint block 501 at the bottom of the clamping seat 3 is inserted into the butt joint groove 502, then the limiting piece 1603 is sleeved on the second bolt 1601, the butt joint sleeve 16033 is sleeved on the end of the third bolt 1602, then the third fastening nut 1604 is threadedly connected with the second bolt 1601 until it is tightly pressed, so that the limiting piece 1603 is tightly pressed against the fixed clamping jaw 5 and the clamping seat 3, thereby fixing the fixed clamping jaw 5 on the clamping seat 3. When it is necessary to maintain the fixed clamping jaw 5, the second fastening nut 1402 can be loosened, and the limiting piece 1603 can be removed, so that the fixed clamping jaw 5 can be removed. The fixed clamping jaw 5 can be individually disassembled, which is convenient for independent maintenance.

[0056] The third fastening nut 1604 and the second fastening nut 1402 are provided with an anti-loosening assembly 17, the anti-loosening assembly 17 comprises an anti-loosening sleeve 1701, an anti-loosening ring 1702 and two butt joint pins 1703, the anti-loosening ring 1702 is hung on the second fastening nut 1402, the end of the anti-loosening ring 1702 is fixedly connected with a lap plate 17022, the two butt joint pins 1703 are fixedly connected on the surface of the clamping seat 3, the lap plate 17022 is sleeved on the surface of the two butt joint pins 1703, the anti-loosening sleeve 1701 is sleeved on the third fastening nut 1604, and the anti-loosening sleeve 1701 and the anti-loosening ring 1702 are threadedly connected with a pulling screw 1704 therebetween.

[0057] The anti-loosening sleeve 1701 is L-shaped, the bottom of the anti-loosening sleeve 1701 is fixedly connected with a first butt joint screw sleeve 17011, the bottom of the anti-loosening ring 1702 is fixedly connected with a second butt joint screw sleeve 17021, one end of the pulling screw rod 1704 is threadedly connected with the first butt joint screw sleeve 17011, and the other end of the pulling screw rod 1704 is threadedly connected with the second butt joint screw sleeve 17021. After the third fastening nut 1604 is threadedly connected with the second bolt 1601 and the second fastening nut 1402 is threadedly connected with the first bolt 1401, the anti-loosening sleeve 1701 is sleeved on the third fastening nut 1604, the pulling screw rod 1704 is rotated, the pulling screw rod 1704 threadedly drives the first butt joint screw sleeve 17011 and the second butt joint screw sleeve 17021 at the same time, the first butt joint screw sleeve 17011 and the second butt joint screw sleeve 17021 are close to each other, until the anti-loosening sleeve 1701 is completely pressed against the third fastening nut 1604, the anti-loosening ring 1702 abuts against the second fastening nut 1402, the second fastening nut 1402 and the third fastening nut 1604 are prevented from loosening, the anti-loosening assembly 17 effectively prevents the positioning assembly 16 of the fixed clamping jaw 5 and the locking assembly 14 of the movable clamping jaw 4 from loosening due to vibration, and thus the overall rigidity and connection reliability of the clamping mechanism are durably maintained under dynamic working conditions.

[0058] The above merely describes the preferred embodiment of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A steel pipe cutting device for steel pipe cold roll forming processing, comprising a cutting table (1), a moving frame (2) is arranged on the cutting table (1), and a cutting assembly (18) is arranged on the moving frame (2), characterized in that: The end of the moving frame (2) is provided with a clamping seat (3), two clamping assemblies are installed on the clamping seat (3), the clamping assembly comprises a movable clamping jaw (4) and a fixed clamping jaw (5), two first air cylinders (6) are further arranged on the clamping seat (3), the ends of the two first air cylinders (6) are respectively in butt joint with the two movable clamping jaws (4), a positioning and mounting assembly is arranged between the first air cylinder (6) and the clamping seat (3), the positioning and mounting assembly is used for mounting the first air cylinder (6) and the movable clamping jaw (4), and the first air cylinder (6) can be finely adjusted according to the butt joint completion degree of the movable clamping jaw (4) and the first air cylinder (6); The positioning and mounting assembly comprises two butt joint seats (7), the two butt joint seats (7) are fixedly connected on the clamping seat (3), plug-in grooves (701) are formed in the two butt joint seats (7), U-shaped plug-in seats (8) are inserted into the two plug-in grooves (701), a plurality of plug-in rods (9) are inserted into the plug-in seat (8), the plug-in rods (9) are fixedly connected with the movable clamping jaw (4), a locking assembly (14) is arranged between the two plug-in seats (8) and the clamping seat (3), an installation seat (10) is inserted into the plug-in seat (8), the first air cylinder (6) is fixedly connected on the installation seat (10), a butt joint head (601) is fixedly connected at the end of the piston rod of the first air cylinder (6), a connecting seat (15) is fixedly connected on the surface of the movable clamping jaw (4), a plug-in groove (1501) is formed in the connecting seat (15), the butt joint head (601) is inserted into the plug-in groove (1501), fourth bolts (11) are inserted into the two ends of the top of the installation seat (10), the fourth bolts (11) are fixedly connected with the two ends of the top of the plug-in seat (8), first fastening nuts (12) are threadedly connected with the surface of the fourth bolt (11), supporting springs (13) are further sleeved on the surface of the fourth bolt (11), the two ends of the supporting spring (13) are respectively in contact with the installation seat (10) and the plug-in seat (8); The plug-in seat (8) comprises a horizontal section (801) and two vertical sections (802), the two vertical sections (802) are inserted into the two plug-in grooves (701), the plug-in groove (701) comprises a first gap passage (7011) and a second gap passage (7012), the plug-in rods (9) are respectively inserted into the two vertical sections (802), and the first gap passage (7011) gives a gap for the plug-in rod (9); The locking assembly (14) comprises a first bolt (1401), the first bolt (1401) is fixedly connected at the bottom of the horizontal section (801), the first bolt (1401) penetrates through the clamping seat (3) and extends to the bottom end of the clamping seat (3), and a second fastening nut (1402) is threadedly connected with the end of the first bolt (1401).

2. A steel pipe cutting device for cold roll forming of steel pipes according to claim 1, characterized in that: The installation seat (10) is provided with a butt joint sliding groove (1001) on both sides, and the installation seat (10) is slidably inserted with the vertical section (802) through the butt joint sliding groove (1001).

3. A steel pipe cutting device for cold roll forming of steel pipes according to claim 1, characterized in that: The fixed clamping jaw (5) is inserted on the clamping seat (3), a positioning assembly (16) is arranged between the fixed clamping jaw (5) and the clamping seat (3), the positioning assembly (16) comprises a second bolt (1601) and a third bolt (1602), the second bolt (1601) is fixedly connected on the surface of the clamping seat (3), the third bolt (1602) is fixedly connected on the surface of the fixed clamping jaw (5), a limiting piece (1603) is sleeved on the surface of the second bolt (1601), a butt joint sleeve (16033) is arranged at the top end of the limiting piece (1603), the butt joint sleeve (16033) is sleeved on the end of the third bolt (1602), and a third fastening nut (1604) is threadedly connected on the surface of the second bolt (1601), and the limiting piece (1603) is pressed against the clamping seat (3) and the fixed clamping jaw (5) under the fastening action of the third fastening nut (1604).

4. A steel pipe cutting device for cold roll forming of steel pipes according to claim 3, characterized in that: The limiting piece (1603) comprises a lower pressing body (16031) and an upper connecting body (16032), the lower pressing body (16031) is sleeved on the surface of the second bolt (1601), and the upper connecting body (16032) is fixedly connected with the butt joint sleeve (16033); and the third fastening nut (1604) is pressed against the surface of the lower pressing body (16031).

5. A steel pipe cutting apparatus for cold roll forming of steel pipes according to claim 4, characterized in that: The third fastening nut (1604) and the second fastening nut (1402) are provided with an anti-loosening assembly (17), the anti-loosening assembly (17) comprises an anti-loosening sleeve (1701), an anti-loosening ring (1702) and two butt joint pins (1703), the anti-loosening ring (1702) is hinged to the second fastening nut (1402), the end of the anti-loosening ring (1702) is fixedly connected with a lap plate (17022), the two butt joint pins (1703) are fixedly connected on the surface of the clamping seat (3), the lap plate (17022) is sleeved on the surface of the two butt joint pins (1703), the anti-loosening sleeve (1701) is sleeved on the third fastening nut (1604), and a pulling screw rod (1704) is threadedly connected between the anti-loosening sleeve (1701) and the anti-loosening ring (1702).

6. A steel pipe cutting apparatus for cold roll forming of steel pipes according to claim 5, characterized in that: The anti-loosening sleeve (1701) is L-shaped, the bottom of the anti-loosening sleeve (1701) is fixedly connected with a first butt joint screw sleeve (17011), the bottom of the anti-loosening ring (1702) is fixedly connected with a second butt joint screw sleeve (17021), one end of the pulling screw rod (1704) is threadedly connected with the first butt joint screw sleeve (17011), and the other end of the pulling screw rod (1704) is threadedly connected with the second butt joint screw sleeve (17021).

7. A steel pipe cutting device for cold roll forming of steel pipes according to any one of claims 1 to 6, characterized in that: The cutting assembly (18) comprises a connecting rail (1801) fixedly connected on the surface of the moving frame (2), a second air cylinder (1802) fixedly connected on the surface of the connecting rail (1801), a sliding frame (1803) fixedly connected at the piston rod end of the second air cylinder (1802), the sliding frame (1803) being slidingly inserted into the connecting rail (1801), a rotating shaft (1804) rotatably connected at the end of the sliding frame (1803), a cutting disc (1805) fixedly connected at the end of the rotating shaft (1804) away from the cutting disc (1805), a first transmission disc (1806) fixedly connected at the end of the rotating shaft (1804) away from the cutting disc (1805), a first motor (1807) fixedly installed on the sliding frame (1803), a second transmission disc (1808) fixedly connected at the output end of the first motor (1807), and a transmission belt (1809) in transmission connection between the first transmission disc (1806) and the second transmission disc (1808).

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