Full-automatic production line of cold pilger mill

Abstract

The invention discloses a full-automatic production line of a cold pilger mill, and relates to the technical field of cold pilger mills, the full-automatic production line of the cold pilger mill comprises a rack, the top of the rack is connected with a rolling mill assembly, an adjusting assembly assembled in the rolling mill assembly and a polishing assembly installed at the top of the rack, and the rolling mill assembly comprises a driving part installed at the top of the rack; the driving part is connected with a sliding part through a pushing part, the inner wall of the rack is fixedly connected with a limiting part, the periphery of the sliding part is connected with the rack through a connecting part, and in order to adapt to capillary tubes of different sizes, the distance between the rollers is adjusted through a servo motor, precise rolling is ensured, and the servo motor drives a gear and a rotating disc to drive a mounting frame and the rollers to move; rapid adjustment of the distance between the rollers is achieved, rolling requirements of tubular billets with certain specifications and different sizes are met, production flexibility is improved, when the rotating disc rotates, the telescopic rod and the rotating disc drive the lifting frame and the rotating rollers to move, it is guaranteed that rolled pipe fittings are located in the center all the time, slight shaking and bending are prevented, and the forming quality of the pipe fittings is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of cold rolling tube mills, and in particular to a fully automatic production line for cold rolling tube mills. Background Art

[0002] The cold rolling mill is a process equipment that uses a ring hole shape to roll the rough tube in a cold state. The equipment not only has good blanking performance, but also can roll out non-ferrous metal seamless tubes of ordinary precision. The most notable feature of the cold rolling mill is its high material utilization rate. At the same time, it is superior to cold drawn tubes in terms of precision and surface roughness.

[0003] The fully automated cold-rolled tube mill production line is a further upgrade and extension of the cold-rolled tube mill technology. It focuses on achieving the continuity and efficiency of pipe processing and production. Through highly automated equipment and processes, it ensures the stability and controllability of the processing process. In the current pipe rolling technology, the main drive device of the fully automated cold-rolled tube mill production line usually adopts belt drive or chain drive to accurately control the reciprocating movement of the rollers, so as to continuously and evenly cold-roll the tubes during the continuous movement of the rollers.

[0004] When the perforated rough tubes enter the cold rolling stage, they will undergo multiple precision rolling processes. During this process, the rough tubes are gradually thinned and eventually reach the required steel pipe specifications and sizes. However, the existing cold rolling tube mill technology still faces certain challenges when processing rough tubes of certain specifications but different sizes. In order to ensure rolling quality and production efficiency, cold rolling equipment needs to perform a series of complex and time-consuming size adjustments, including adjusting the gap between the rollers and replacing rollers of different specifications. These adjustments not only increase production costs and labor intensity, but may also have an adverse effect on the overall production efficiency, limiting the application and development of cold rolling tube mills in a wider range of fields. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing cold rolling tube mill technology still faces certain challenges when processing rough tubes of certain specifications but different sizes. In order to ensure the rolling quality and production efficiency, the cold rolling equipment needs to perform a series of complex and time-consuming size adjustment work, including adjusting the gap between the rollers and replacing rollers of different specifications. These adjustments not only increase the production cost and labor intensity, but may also have an adverse effect on the overall production efficiency, limiting the application and development of the cold rolling tube mill in a wider range of fields. The solution proposed in the present invention is to solve the problem that the existing cold rolling tube mill technology still faces certain challenges when processing rough tubes of certain specifications but different sizes. In order to ensure the rolling quality and production efficiency, the cold rolling equipment needs to perform a series of complex and time-consuming size adjustment work, including adjusting the gap between the rollers and replacing rollers of different specifications. These adjustments not only increase the production cost and labor intensity, but also may have an adverse effect on the overall production efficiency, limiting the application and development of the cold rolling tube mill in a wider range of fields.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a fully automatic production line of a cold rolling tube mill: comprising a frame, a rolling mill assembly is connected to the top of the frame, and further comprising: an adjustment assembly assembled inside the rolling mill assembly, and a grinding assembly installed on the top of the frame; The adjusting assembly comprises a connecting plate installed at the bottom of the rolling mill assembly, a servo motor is installed at the bottom of the connecting plate, the output shaft of the servo motor is connected to a rotating shaft, and the outer periphery of the rotating shaft is fixedly connected to a driving gear extending into the servo motor, the inner wall of the servo motor is rotatably connected to a rotating disk, a plurality of connecting gears meshing with the driving gear are installed inside the rotating disk, a plurality of limiting grooves are provided inside the rotating disk, and a limiting rod is slidably connected to the inner wall of the limiting groove, a plurality of fixed blocks are fixedly connected to the inner wall of the rolling mill assembly, a sliding groove is provided inside each fixed block, and a slider is slidably connected to the inner wall of the sliding groove, a sliding groove is extended from one side of every two sliders to be connected to a mounting frame, the mounting frame is connected to a roller via a fixed column rotatably connected to the inner wall, and one side of the limiting rod is fixedly connected to the mounting frame; The servo motor drives the rotating shaft to drive the driving gear to rotate, and the rotating plate rotates on the inner wall of the rolling mill assembly as it rotates, so that the limiting rod drives the rollers connected to the mounting frame to move, so that the rollers are moved closer to or farther away from each other.

[0007] As a further description of the above technical solution: The grinding assembly includes a connecting frame fixedly connected to the inner wall of the rolling mill assembly, the inner wall of the connecting frame is rotatably connected to a rotating disk, the inner wall of the rotating disk is provided with a plurality of limit grooves, the inner walls of the limit grooves are slidably connected to the limit rods, the rotating disk and the rotating disk are connected by two telescopic rods, and the inner wall of the connecting frame is connected to a plurality of lifting parts.

[0008] As a further description of the above technical solution: The lifting member includes a plurality of connecting blocks fixedly connected to the inner wall of the connecting frame, a lifting slot is opened inside the connecting block, and the inner wall of the lifting slot is slidably connected with a lifting block, one side of the lifting block is connected to the limit rod, and the other side of the lifting block extends out of the lifting slot and is connected to a contact member.

[0009] As a further description of the above technical solution: The contact member comprises a lifting frame fixedly connected to the lifting block, the inner wall of the lifting frame is rotatably connected to a rotating rod, and the outer periphery of the rotating rod is connected to a rotating roller.

[0010] As a further description of the above technical solution: A plurality of grinding particles are connected to the outer periphery of the rotating roller.

[0011] As a further description of the above technical solution: A lifting frame is connected to a one-way piece extending from one side of the rotating rod. The one-way piece includes a plurality of abutment blocks connected to the outer periphery of the rotating rod and a fixed ring fixedly connected to one side of the lifting frame. A plurality of welding frames are fixedly connected to the inner wall of the fixed ring. Positioning columns are fixedly connected between the inner walls of the welding frames. A clamping block in contact with the abutment block is rotatably connected to the outer periphery of the positioning columns. A spring sheet in contact with the clamping block and a tightening block for limiting the rotation of the clamping block are installed between the inner walls of the welding frames.

[0012] As a further description of the above technical solution: The frame includes an automatic loading component, a jacking pipe component is installed on one side of the automatic loading component, a first machine tool and a second machine tool are connected to one side of the jacking pipe component, a first rotary box is installed on the top of the first machine tool, a first propulsion component and a clamping component are installed on both sides of the first rotary box, a second rotary box is installed on the top of the second machine tool, a second propulsion component and a rotary chuck component are installed on both sides of the second rotary box, a lubrication component is connected to the bottom of the second machine tool, an automatic unloading component is connected to the side of the rolling mill assembly away from the automatic loading component, a mandrel is connected to the top of the first machine tool and the second machine tool, and one end of the mandrel extends into the rolling mill assembly.

[0013] As a further description of the above technical solution: One side of the core rod is connected to an inner support assembly, the inner support assembly includes a threaded hole opened inside the core rod, the threaded hole is connected to an extension rod through a threaded rod, the outer periphery of the extension rod is fixedly connected to a conical block, the outer periphery of the extension rod is fixedly connected to a plurality of support members, the support members include a positioning frame fixedly connected to the outer periphery of the extension rod, the inner wall of the positioning frame is rotatably connected to a rotating plate through the positioning rod, and the interior of the extension rod is connected to a moving member.

[0014] As a further description of the above technical solution: The abutment member includes a pushing groove opened inside the extension rod, the inner wall of the pushing groove is fixedly connected with a sliding rod, the outer periphery of the sliding rod is slidably connected with a pushing block, the outer periphery of the sliding rod is sleeved with a telescopic spring, the inner ring of the rotating plate is fixedly connected with a stopper, contact rods are connected between the stopper and the inner wall of the pushing block, and the two contact rods are connected by a push rod.

[0015] As a further description of the above technical solution: The rolling mill assembly includes a driving member installed on the top of the frame, the driving member is connected to a sliding member through a pushing member, a limiting member is fixedly connected to the inner wall of the frame, the sliding member and the limiting member are slidably connected, and the outer periphery of the sliding member is connected to the frame through a connecting member.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: During the tube rolling process, the rough tube is fed into the mill assembly, contacts the rollers and drives the rollers to rotate through friction to achieve rolling processing. To adapt to rough tubes of different sizes, the roller spacing can be adjusted by the servo motor to ensure accurate rolling. The servo motor drives the gears and rotating disk to drive the mounting frame and rollers to move, so as to achieve rapid adjustment of the roller spacing, meet the rolling needs of rough tubes of different sizes of certain specifications, and improve production flexibility; When the rotating disk rotates, the lifting frame and rotating roller are driven to move through the telescopic rod and the rotating disk to ensure that the rolled pipe is always in the center position to prevent slight shaking and bending, thus ensuring the forming quality of the pipe; The pipe fittings are in contact with the grinding particles on the surface of the rotating roller during rotation to achieve surface grinding. After the particles are worn, the grinding particles can be automatically replaced by rotating the rotating roller in the opposite direction and utilizing the spring sheet rebound and the clamping block reset mechanism to continuously perform grinding work and improve the surface quality of the pipe fittings. When the end of the pipe fitting moves out of the mandrel, the rotating plate provides support inside the pipe fitting to reduce the sinking phenomenon. As the pipe fitting moves, the rotating plate rotates and pushes the pushing block through the connecting rod mechanism, and uses the reaction force of the telescopic spring to maintain close contact, thereby increasing the stability of the pipe fitting, reducing the possibility of shaking, optimizing the quality of the rolled pipe fittings, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shows a schematic diagram of the overall structure according to the present invention; Figure 2 It shows a schematic structural diagram of a rolling mill assembly according to the present invention; Figure 3 It is shown that according to the present invention Figure 2 Schematic diagram of the internal structure; Figure 4 A schematic diagram of the structure of a sliding block according to the present invention is shown; Figure 5 A schematic diagram of the structure of the regulating assembly according to the present invention is shown; Figure 6 A schematic diagram of the structure of a rotating disk according to the present invention is shown; Figure 7 A schematic diagram of the disassembly structure of a roller according to the present invention is shown; Figure 8 A schematic diagram of the structure of a grinding assembly according to the present invention is shown; Fig. 9 A schematic diagram of the lifting frame structure according to the present invention is shown; Fig.10 A schematic diagram of the structure of the grinding particles according to the present invention is shown; Fig.11 A schematic diagram of the abutment block structure according to the present invention is shown; Fig.12A schematic diagram of the structure of the inner support assembly according to the present invention is shown; Fig.13 A schematic diagram of the extension rod structure according to the present invention is shown.

[0018] Legend: 10. Frame; 11. Automatic loading component; 111. Pipe jacking component; 12. First machine tool; 121. First rotary box; 122. First propulsion component; 123. Clamping component; 13. Second machine tool; 131. Second rotary box; 132. Second propulsion component; 133. Rotary chuck component; 14. Lubrication component; 15. Automatic unloading component; 16. Mandrel; 20. Rolling mill assembly; 21. Driving member; 22. Pushing member; 23. Sliding member; 24. Limiting member; 25. Connecting member; 30. Adjustment assembly; 31. Connecting plate; 32. Servo motor; 33. Rotating shaft; 34. Driving gear; 35. Rotating plate; 351. Connecting gear; 352. Limiting groove; 353. Limiting rod; 36. Fixed block; 361. Sliding groove; 362. Sliding block; 363. Mounting frame; 364. Fixed column; 365. Roller; 40. grinding assembly; 41. connecting frame; 42. rotating disk; 43. telescopic rod; 44. limiting groove; 441. limiting rod; 45. connecting block; 451. lifting groove; 452. lifting block; 453. lifting frame; 454. rotating rod; 455. rotating roller; 456. grinding particles; 46. fixing ring; 461. abutting block; 462. welding frame; 463. positioning column; 464. clamping block; 465. spring sheet; 466. abutting block; 50. Inner support assembly; 51. Extension rod; 511. Threaded rod; 512. Threaded hole; 52. Conical block; 53. Positioning frame; 531. Positioning rod; 532. Rotating plate; 54. Pushing groove; 541. Sliding rod; 542. Pushing block; 543. Telescopic spring; 544. Stop block; 545. Contact rod; 546. Push rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1-Figure 13As shown, the present invention provides a fully automatic production line for a cold rolling tube mill: comprising a frame 10, the frame 10 comprising an automatic feeding component 11, a jacking component 111 is installed on one side of the automatic feeding component 11, a first machine tool 12 and a second machine tool 13 are connected to one side of the jacking component 111, a first rotary box 121 is installed on the top of the first machine tool 12, a first propulsion component 122 and a clamping component 123 are installed on both sides of the first rotary box 121, a second rotary box 131 is installed on the top of the second machine tool 13, a second propulsion component 132 and a rotary chuck component 133 are installed on both sides of the second rotary box 131, and the second machine The bottom of the bed 13 is connected with a lubrication component 14, the side of the rolling mill assembly 20 away from the automatic loading component 11 is connected with an automatic unloading component 15, the tops of the first machine tool 12 and the second machine tool 13 are both connected with a mandrel 16, the top of the frame 10 is connected with the rolling mill assembly 20, and one end of the mandrel 16 extends into the rolling mill assembly 20, the rolling mill assembly 20 includes a driving member 21 installed on the top of the frame 10, the driving member 21 is connected with a sliding member 23 through a pushing member 22, the inner wall of the frame 10 is fixedly connected with a limiting member 24, the sliding member 23 is slidably connected to the limiting member 24, and the outer periphery of the sliding member 23 is connected to the frame 10 through a connecting member 25; During the cold rolling process of the rough pipe, the entire operation process ensures high efficiency and accuracy. First, the rough pipe is automatically loaded through the automatic loading component 11. As the rough pipe rises, it smoothly enters the interior of the jacking component 111. Under the push of the jacking component 111, the rough pipe continues to move until it is sent into the first machine tool 12. As the jacking member 111 continues to push, the hair tube gradually exceeds the position of the first pushing member 122. At this time, the first pushing member 122 starts to push the hair tube to move along the path of the first machine tool 12. During the movement, the clamping member 123 and the rotary chuck member 133 work alternately to ensure that the hair tube is smoothly transferred from the first machine tool 12 to the second machine tool 13. Between the first machine tool 12 and the second machine tool 13, the first pushing member 122 and the second pushing member 132 also work alternately, and cooperate with each other to smoothly send the rough pipe to the rolling mill assembly 20 for rolling processing. In the rolling mill assembly 20, the rough pipe undergoes rolling deformation on the diameter reduction and sizing section of the mandrel 16, so as to obtain the required size; During the rolling process, the tube blank and the mandrel 16 are tightly clamped and rotated by the rotary chuck component 133 to ensure the uniformity and accuracy of rolling. At the same time, the driving member 21 drives the pushing member 22 to move, thereby pushing the sliding member 23 to reciprocate under the constraint of the limiting member 24, thereby achieving the effect of continuous rolling. When rolling is completed, the finished tube is moved to the automatic unloading component 15, and the automatic unloading component 15 is started to turn the finished tube over and place it on a collection rack or a receiving rack for subsequent storage or transportation.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, an adjustment assembly 30 assembled inside the rolling mill assembly 20 and a grinding assembly 40 installed on the top of the frame 10, the adjustment assembly 30 includes a connecting plate 31 installed at the bottom of the sliding member 23, a servo motor 32 is installed at the bottom of the connecting plate 31, the output shaft of the servo motor 32 is connected to a rotating shaft 33, and the outer periphery of the rotating shaft 33 is fixedly connected to a driving gear 34 extending into the servo motor 32, the inner wall of the servo motor 32 is rotatably connected to a rotating disk 35, and a plurality of connecting gears 351 meshing with the driving gear 34 are installed inside the rotating disk 35. At least two limiting grooves 352 are provided inside the rotating disk 35, and the inner wall of the limiting groove 352 is slidably connected to a limiting rod 353, and the inner wall of the sliding member 23 is fixedly connected to a plurality of fixing blocks 36, each fixing block 36 has a sliding groove 361 provided inside, and the inner wall of the sliding groove 361 is slidably connected to a slider 362, and one side of each two sliders 362 extends out of the sliding groove 361 and is connected to a mounting frame 363, and the mounting frame 363 is connected to a roller 365 through a fixing column 364 rotatably connected to the inner wall, and one side of the limiting rod 353 is fixedly connected to the mounting frame 363; When the rough pipe is fed into the rolling mill assembly 20, its outer wall will come into contact with the roller 365. As the rough pipe is gradually pushed between the rollers 365, the rough pipe will drive the roller 365 to rotate around the outer periphery of the fixed column 364 through the friction force generated between the rough pipe and the roller 365, thereby rolling the rough pipe; If it is necessary to roll rough pipes of certain specifications but different sizes, adjustment can be achieved by starting the servo motor 32. The rotation of the servo motor 32 will drive the rotating shaft 33 to rotate, and then drive the gear 34 to drive the rotating disk 35 to rotate inside the sliding member 23. As the rotating disk 35 rotates, the limiting rod 353 in contact with the limiting groove 352 will move accordingly. This movement will further drive the movement of the mounting frame 363, so that the slider 362 connected to the mounting frame 363 slides in the slide groove 361 opened inside the fixed block 36. Through such an adjustment mechanism, several rollers 365 can be made to approach or move away from each other, so that the rough pipes within a certain specification range can be accurately rolled through the roller groove inside the roller 365.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 As shown, the grinding assembly 40 includes a connecting frame 41 fixedly connected to the inner wall of the rolling mill assembly 20, the inner wall of the connecting frame 41 is rotatably connected to a rotating disk 42, the inner wall of the rotating disk 42 is provided with a plurality of limit grooves 44, the inner wall of the limit groove 44 is slidably connected to a limit rod 441, the rotating disk 42 is connected to the rotating disk 35 by two telescopic rods 43, the inner wall of the connecting frame 41 is connected to a plurality of lifting members, the lifting members include a plurality of connecting blocks 45 fixedly connected to the inner wall of the connecting frame 41, a lifting groove 451 is provided inside the connecting block 45, and a lifting block 452 is slidably connected to the inner wall of the lifting groove 451, one side of the lifting block 452 is connected to the limit rod 441, and the other side of the lifting block 452 extends out of the lifting groove 451 and is connected to a contact member, and the contact member includes a lifting frame 45 fixedly connected to the lifting block 452 3. The inner wall of the lifting frame 453 is rotatably connected with a rotating rod 454, and the outer periphery of the rotating rod 454 is connected with a rotating roller 455, and the outer periphery of the rotating roller 455 is connected with a plurality of grinding particles 456. One side of the rotating rod 454 extends out of the lifting frame 453 and is connected with a one-way member, the one-way member includes a plurality of abutting blocks 461 connected to the outer periphery of the rotating rod 454 and a fixing ring 46 fixedly connected to one side of the lifting frame 453, and the inner wall of the fixing ring 46 is fixedly connected with a plurality of welding frames 462, and positioning columns 463 are fixedly connected between the inner walls of the welding frames 462, and the outer periphery of the positioning columns 463 is rotatably connected with a clamping block 464 in contact with the abutting block 461, and a spring sheet 465 in contact with the clamping block 464 and a clamping block 466 for limiting the rotation of the clamping block 464 are installed between the inner walls of the welding frames 462; When the rough pipe is fed into the rolling mill assembly 20, as the rotating disk 35 rotates, it drives the two telescopic rods 43 on one side to move and rotate, and the two telescopic rods 43 further drive the rotating disk 42 to rotate inside the connecting frame 41. As the rotating disk 42 rotates, the limiting groove 44 thereon pushes against the limiting rod 441 to move, and the limiting rod 441 drives the lifting block 452 to move inside the lifting groove 451. As the lifting block 452 moves, it synchronously drives the lifting frame 453 to move, thereby making the several rotating rollers 455 on the lifting frame 453 approach or move away from each other, so as to completely contact the rolled pipe fittings; This design ensures that the rolled pipe can move along the middle of the plurality of rotating rollers 455, so that the pipe is always in the center position, which can effectively prevent the rolled pipe from shaking slightly after it has just left the mandrel 16 for a certain distance, avoid stretching and thinning caused by bending of the pipe, and ultimately ensure the forming quality of the pipe; At the same time, the rolled pipe is pushed forward while rotating. As the pipe is pushed forward, the abutment block 461 restricted by the clamping block 464 cannot move. Therefore, as the pipe continues to be pushed forward, the rotating rod 454 connected to the rotating roller 455 cannot rotate either. When the rolled pipe is rotating and moving, it will contact the grinding particles 456 on the surface of the rotating roller 455. As the pipe continues to rotate and push, the surface of the pipe can be polished. In addition, when the grinding particles 456 gradually shrink after long-term use, the rotating roller 455 can be turned to rotate in the opposite direction. At this time, the abutment block 461 on the rotating rod 454 will abut the clamping block 464 to rotate with the positioning column 463 as the center, and squeeze the spring sheet 465. When the abutment block 461 is out of contact with the clamping block 464 as it rotates, the squeezed spring sheet 465 will rebound and abut the clamping block 464 to reset, so that it contacts the abutment block 466 again. In this way, as the rotating rod 454 rotates in the opposite direction, the rotating roller 455 can be driven to rotate together, thereby replacing the grinding particles 456 consumed by friction while continuing the grinding work.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Fig.12 , Fig.13 As shown, one side of the core rod 16 is connected to an inner support assembly 50, and the inner support assembly 50 includes a threaded hole 512 opened inside the core rod 16, and the threaded hole 512 is connected to an extension rod 51 through a threaded rod 511, and the outer periphery of the extension rod 51 is fixedly connected to a conical block 52, and the outer periphery of the extension rod 51 is fixedly connected to a plurality of support members, and the support members include a positioning frame 53 fixedly connected to the outer periphery of the extension rod 51, and the inner wall of the positioning frame 53 is rotatably connected to a rotating plate 532 through a positioning rod 531, and the extension rod The interior of the extension rod 51 is connected with a moving piece, and the moving piece includes a pushing groove 54 opened in the extension rod 51, the inner wall of the pushing groove 54 is fixedly connected with a sliding rod 541, the outer periphery of the sliding rod 541 is slidably connected with a pushing block 542, the outer periphery of the sliding rod 541 is sleeved with a telescopic spring 543, the inner ring of the rotating plate 532 is fixedly connected with a stopper 544, and the inner wall of the stopper 544 and the pushing block 542 are both connected with a contact rod 545, and the two contact rods 545 are connected by a push rod 546; During the tube rolling process, when the tube end just moves out of the mandrel 16, the reciprocating motion of the roller 365 may cause the tube end to slightly sink in. To alleviate this problem, as the tube continues to move after rolling, its inner wall gradually comes into contact with the rotating plate 532. At this time, the rotating plate 532 rotates around the center point of the positioning rod 531. As the rotating plate 532 rotates, the contact rod 545 pushes the push rod 546 to move through the connection between the stopper 544 and the contact rod 545, and the push rod 546 pushes the push block 542 to slide along the outer surface of the sliding rod 541, and exerts an extrusion effect on the telescopic spring 543. At the same time, the extruded telescopic spring 543 generates a reaction force to push the push block 542, so that the push block 542 continuously presses against the rotating plate 532 through the push rod 546, ensuring that the rotating plate 532 maintains close contact with the inner wall of the pipe. In this way, as the pipe moves, the rotating plate 532 plays an effective supporting role inside the pipe, and together with the contact of the rotating roller 455 on the outside of the pipe, the inward depression of the pipe port can be significantly reduced. At the same time, the support of the rotating plate 532 and the contact of the rotating roller 455 work together to increase the stability of the pipe during movement and greatly reduce the possibility of shaking of the pipe. This design not only optimizes the quality of the rolled pipe, but also improves the stability and efficiency of the entire production process.

[0024] Working principle: During the rolling process of the rough pipe, after the rough pipe enters the rolling mill assembly 20, its outer wall contacts the roller 365, and the roller 365 is driven to rotate by friction to achieve rolling processing. In order to adjust the spacing between the rollers 365 to adapt to rough pipes of different sizes, the servo motor 32 can be started to drive the mounting frame 363 to move through the drive gear 34 and the rotating disk 35 and other mechanisms, so that the rollers 365 are moved closer to or farther away from each other; The rotating disk 35 rotates to drive the telescopic rod 43 to move, and then drives the rotating disk 42 to rotate. Through the limit groove 44 and the limit rod 441 and other mechanisms, the rotating rollers 455 on the lifting frame 453 are moved closer to or away from each other, ensuring that the pipe is completely contacted and kept in the center position, preventing shaking and thinning, and ensuring the molding quality; During the process of rotating and advancing, the pipe fitting contacts with the grinding particles 456 on the surface of the rotating roller 455 to complete the surface grinding. When the grinding particles 456 are worn, the rotating roller 455 can be rotated in the opposite direction to realize the automatic replacement of the grinding particles by using the spring sheet 465 and the clamping block 464. In addition, in order to solve the problem of possible indentation at the end of the pipe fitting, after rolling is completed, the inner wall of the pipe fitting contacts the rotating plate 532, and the rotating plate 532 rotates and maintains close contact with the inner wall of the pipe fitting through a series of mechanisms, playing a supporting role. At the same time, the rotating plate 532 works together with the rotating roller 455 to increase the stability of the pipe fitting, reduce shaking, and optimize the rolling quality and production efficiency.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fully automatic production line for a cold rolling tube mill, comprising a frame (10), a rolling mill assembly (20) being connected to the top of the frame (10), characterized in that: Also includes: An adjusting assembly (30) assembled inside the rolling mill assembly (20), and a grinding assembly (40) mounted on the top of the frame (10); The adjustment assembly (30) comprises a connecting plate (31) mounted on the bottom of the rolling mill assembly (20); a servo motor (32) is mounted on the bottom of the connecting plate (31); an output shaft of the servo motor (32) is connected to a rotating shaft (33); a driving gear (34) extending into the servo motor (32) is fixedly connected to the outer periphery of the rotating shaft (33); a rotating disk (35) is rotatably connected to the inner wall of the servo motor (32); a plurality of connecting gears (351) meshing with the driving gear (34) are mounted inside the rotating disk (35); and a plurality of limiting grooves (351) are provided inside the rotating disk (35). 2), and the inner wall of the limiting groove (352) is slidably connected to a limiting rod (353), the inner wall of the rolling mill assembly (20) is fixedly connected to a plurality of fixed blocks (36), each fixed block (36) is provided with a sliding groove (361) inside, and the inner wall of the sliding groove (361) is slidably connected to a slider (362), one side of each two sliders (362) extends out of the sliding groove (361) and is connected to a mounting frame (363), the mounting frame (363) is connected to a roller (365) via a fixing column (364) rotatably connected to the inner wall, and one side of the limiting rod (353) is fixedly connected to the mounting frame (363); The servo motor (32) drives the rotating shaft (33) to drive the driving gear (34) to rotate, and the rotating disk (35) rotates on the inner wall of the rolling mill assembly (20) as it rotates, so that the limiting rod (353) drives the rollers (365) connected to the mounting frame (363) to move, so that the plurality of rollers (365) are moved closer to or farther away from each other.

2. The fully automatic production line of a cold rolling mill according to claim 1 is characterized in that: The grinding assembly (40) comprises a connecting frame (41) fixedly connected to the inner wall of the rolling mill assembly (20); the inner wall of the connecting frame (41) is rotatably connected to a rotating disk (42); the inner wall of the rotating disk (42) is provided with a plurality of limit grooves (44); the inner wall of the limit grooves (44) is slidably connected to a limit rod (441); the rotating disk (42) is connected to the rotating disk (35) via two telescopic rods (43); and the inner wall of the connecting frame (41) is connected to a plurality of lifting members.

3. The fully automatic production line of cold rolling mill according to claim 2 is characterized in that: The lifting member comprises a plurality of connecting blocks (45) fixedly connected to the inner wall of the connecting frame (41); a lifting groove (451) is provided inside the connecting block (45); a lifting block (452) is slidably connected to the inner wall of the lifting groove (451); one side of the lifting block (452) is connected to the limit rod (441); and the other side of the lifting block (452) extends out of the lifting groove (451) and is connected to a contact member.

4. The fully automatic production line of cold rolling mill according to claim 3 is characterized in that: The contact member comprises a lifting frame (453) fixedly connected to the lifting block (452); the inner wall of the lifting frame (453) is rotatably connected to a rotating rod (454); and the outer periphery of the rotating rod (454) is connected to a rotating roller (455).

5. The fully automatic production line of cold rolling mill according to claim 4 is characterized in that: A plurality of grinding particles (456) are connected to the outer periphery of the rotating roller (455).

6. The fully automatic production line of cold rolling mill according to claim 4 is characterized in that: A lifting frame (453) extends from one side of the rotating rod (454) and is connected to a one-way piece. The one-way piece includes a plurality of abutment blocks (461) connected to the outer periphery of the rotating rod (454) and a fixing ring (46) fixedly connected to one side of the lifting frame (453). The inner wall of the fixing ring (46) is fixedly connected to a plurality of welding frames (462). Positioning columns (463) are fixedly connected between the inner walls of the welding frames (462). The outer periphery of the positioning columns (463) is rotatably connected to a clamping block (464) in contact with the abutment block (461). A spring sheet (465) in contact with the clamping block (464) and a clamping block (466) for limiting the rotation of the clamping block (464) are installed between the inner walls of the welding frames (462).

7. The fully automatic production line of cold rolling mill according to claim 1 is characterized in that: The frame (10) comprises an automatic loading component (11), a jacking component (111) is installed on one side of the automatic loading component (11), a first machine tool (12) and a second machine tool (13) are connected to one side of the jacking component (111), a first rotary box (121) is installed on the top of the first machine tool (12), a first propulsion component (122) and a clamping component (123) are installed on both sides of the first rotary box (121), and a second propulsion component (122) and a clamping component (123) are installed on the top of the second machine tool (13). A rotary box (131), a second propulsion component (132) and a rotary chuck component (133) are respectively installed on both sides of the second rotary box (131), a lubrication component (14) is connected to the bottom of the second machine tool (13), an automatic unloading component (15) is connected to the side of the rolling mill assembly (20) away from the automatic loading component (11), and a mandrel (16) is connected to the top of the first machine tool (12) and the second machine tool (13), and one end of the mandrel (16) extends into the rolling mill assembly (20).

8. The fully automatic production line of cold rolling mill according to claim 7, characterized in that: One side of the core rod (16) is connected to an inner support assembly (50), the inner support assembly (50) comprising a threaded hole (512) formed inside the core rod (16), the threaded hole (512) being connected to an extension rod (51) via a threaded rod (511), the outer periphery of the extension rod (51) being fixedly connected to a conical block (52), the outer periphery of the extension rod (51) being fixedly connected to a plurality of support members, the support members comprising a positioning frame (53) fixedly connected to the outer periphery of the extension rod (51), the inner wall of the positioning frame (53) being rotatably connected to a rotating plate (532) via a positioning rod (531), and the interior of the extension rod (51) being connected to a moving member.

9. The fully automatic production line of cold rolling mill according to claim 8, characterized in that: The abutment member comprises a pushing groove (54) formed inside the extension rod (51); a sliding rod (541) is fixedly connected to the inner wall of the pushing groove (54); a pushing block (542) is slidably connected to the outer periphery of the sliding rod (541); a telescopic spring (543) is sleeved on the outer periphery of the sliding rod (541); a stopper (544) is fixedly connected to the inner ring of the rotating plate (532); contact rods (545) are connected between the stopper (544) and the inner wall of the pushing block (542); and the two contact rods (545) are connected via a push rod (546).

10. The fully automatic production line of cold rolling mill according to claim 1, characterized in that: The rolling mill assembly (20) comprises a driving member (21) mounted on the top of a frame (10); the driving member (21) is connected to a sliding member (23) via a pushing member (22); a limiting member (24) is fixedly connected to the inner wall of the frame (10); the sliding member (23) and the limiting member (24) are slidably connected; and the outer periphery of the sliding member (23) is connected to the frame (10) via a connecting member (25).

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