Pipe and bar staggered rotary rolling mechanism and method

Abstract

The invention discloses a staggered-distance rotary rolling mechanism and method for pipes and bars. The staggered-distance rotary rolling mechanism comprises a rack; the four groups of roller wheel assemblies are arranged, and every two roller wheel assemblies form one group and are arranged on the upper side face, the lower side face, the left side face and the right side face of the rack through rolling angle adjusting mechanisms correspondingly; the four sets of roller pressing assemblies are arranged on the rack, and the four sets of roller pressing assemblies correspond to the four sets of rolling angle adjusting mechanisms correspondingly and are used for applying acting force; the four sets of roller guide plate assemblies are arranged in the rack, and the four sets of roller guide plate assemblies are arranged between the adjacent roller assemblies, correspond to the roller assemblies and are used for assisting in forming; wherein the rolling angle adjusting mechanism is installed on the rack through the linear guide assembly, and the rolling angle adjusting mechanism is used for adjusting the rotary rolling angle of the roller assembly. The whole structural design is reasonable, operation and maintenance are convenient, continuous production can be stably guaranteed, and the failure rate and the production cost are reduced.

Description

Technical Field

[0001] This invention relates to the field of tube and bar spinning technology, and in particular to a tube and bar staggered spinning mechanism and method. Background Technology

[0002] In the processing of tubes and bars, spinning or rotary rolling are commonly used forming methods. In the past, two-roller or three-roller spinning was the most common process. To improve production efficiency, technicians innovated the roller layout by adopting a staggered arrangement, a process known as staggered spinning or staggered rotary rolling.

[0003] However, staggered spinning or rotary rolling has revealed several problems in practical applications. First, regarding production efficiency, despite the staggered layout, the amount of stagger between the rollers is small, resulting in a limited improvement in production efficiency. In today's industrial environment that pursues high-efficiency production, this limited improvement in production efficiency is insufficient to meet the demands of large-scale, rapid production.

[0004] Secondly, the structural design of the rollers also restricts further development of the process. Since most rollers use a cantilever structure for transmission, this structure is significantly insufficient when subjected to large spinning pressure. The cantilever structure makes the rollers prone to deformation and vibration under stress, limiting further increases in spinning pressure. This insufficient spinning pressure directly leads to difficulty in increasing the amount of thinning deformation during spinning, thus affecting the forming quality and processing range of tubes and bars.

[0005] Furthermore, traditional processes face significant challenges when using multi-pass hot spinning for metals that cool rapidly and are difficult to deform. During hot spinning, the metal cools down quickly, causing thermal hardening. As hardening intensifies, the metal's plasticity decreases and its resistance to deformation increases, making the spinning process difficult to execute smoothly. This not only increases processing difficulty but may also lead to decreased product quality, even resulting in scrap, causing resource waste and increased production costs.

[0006] To address the aforementioned technical problems, this invention provides a staggered rotary rolling mechanism and method for tubes and bars. Summary of the Invention

[0007] The purpose of this invention is to provide a staggered spinning mechanism and method for tubes and bars to solve the problems existing in the prior art.

[0008] To achieve the above objectives, the present invention provides the following solution: The present invention provides a staggered spinning mechanism for tubes and bars, comprising:

[0009] frame;

[0010] The roller assembly comprises four sets, with each set consisting of two roller assemblies arranged in pairs on the upper, lower, left, and right sides of the machine frame via a rolling angle adjustment mechanism. The roller assemblies on the left and right sides of the machine frame are staggered, as are the roller assemblies on the upper and lower sides of the machine frame.

[0011] The roller pressing assembly is provided in four sets on the frame. The four sets of roller pressing assemblies are respectively arranged corresponding to the four sets of rolling angle adjustment mechanisms for applying force.

[0012] The roller guide plate assembly has four sets arranged in the frame. The four sets of roller guide plate assemblies are respectively arranged between adjacent roller assemblies and are arranged corresponding to the roller assemblies to assist in forming.

[0013] The rolling angle adjustment mechanism is mounted on the frame via a linear guide assembly and is used to adjust the rolling angle of the roller assembly.

[0014] According to the tube and bar staggered spinning mechanism provided by the present invention, the frame includes:

[0015] Lower base plate, wherein the lower base plate is arranged horizontally;

[0016] Side plates, wherein two sets of side plates are provided, and the two sets of side plates are symmetrically and vertically fixed to the top surface of the bottom plate;

[0017] A cover plate, which is horizontally fixed to the top surface of the two sets of side plates;

[0018] The bottom plate, the two sets of side plates, and the cover plate together form a rectangular frame structure.

[0019] According to the tube and bar staggered spinning mechanism provided by the present invention, the roller assembly includes:

[0020] A barrel-shaped perforated roll, wherein two sets of barrel-shaped perforated rolls are provided, and the two sets of barrel-shaped perforated rolls are respectively mounted on the two sets of side plates through the rolling angle adjustment mechanism, and the two sets of barrel-shaped perforated rolls are staggered.

[0021] The tapered tube rolling rolls are provided in two sets. The two sets of tapered tube rolling rolls are respectively installed on the lower base plate and the cover plate through the rolling angle adjustment mechanism, and the two sets of tapered tube rolling rolls are staggered.

[0022] According to the tube and bar staggered rolling mechanism provided by the present invention, the rolling angle adjustment mechanism includes:

[0023] An adjustment box, comprising a pad and a fastener fixed on the pad, wherein a rotating cavity is formed between the pad and the fastener, and a rotating groove is provided on the pad;

[0024] A rotating plate is rotatably connected in the rotating groove and rotatably connected to the buckle plate. Both ends of the rotating plate are fixedly connected to bosses, and the bosses are symmetrically provided with arc-shaped grooves.

[0025] The adjusting screws are provided in two sets. The buckle plate has threaded holes, and the adjusting screws are threaded into the threaded holes respectively. One end of the adjusting screw is fixed with a ball head, and the ball head abuts against the arc-shaped groove respectively.

[0026] The roller assembly is mounted on the rotating plate, and the adjustment box is mounted on the lower base plate, the cover plate, and the two sets of side plates via the linear guide assembly.

[0027] According to the tube and bar staggered spinning mechanism provided by the present invention, the linear guide assembly includes:

[0028] A balance rod is hinged to the back of the buckle plate via a ball joint assembly, and the balance rod passes through the center positions of the lower base plate, the side plate, and the cover plate, respectively.

[0029] The tube and bar staggered spinning mechanism provided by the present invention further includes:

[0030] The bearing housing is fixed to the rotating plate;

[0031] A rolling mill shaft, the rolling mill shaft being mounted on the bearing housing, and the roller assembly being mounted on the rolling mill shaft.

[0032] According to the tube and bar staggered spinning mechanism provided by the present invention, the roller pressing assembly includes:

[0033] Two sets of press-down screws are provided, and the two sets of press-down screws are respectively fixed to the back of the buckle plate and are symmetrically arranged about the balance rod.

[0034] The pressing nuts are rotated on the lower base plate, the side plate, and the cover plate, respectively, and are arranged in a one-to-one correspondence with the pressing screws. The pressing screws pass through the pressing nuts and are threadedly engaged with the pressing nuts.

[0035] According to the tube and bar staggered spinning mechanism provided by the present invention, the roller guide plate assembly includes:

[0036] Parallel plates, which are fixed at the four interior corners of the rectangular frame structure;

[0037] Mounting arms, which are respectively fixed to the parallel plates;

[0038] A molding block is fixed between the mounting arms arranged vertically opposite each other, and adjacent molding blocks are arranged on the left and right sides respectively. One side of the molding block is provided with an arc surface.

[0039] A method for staggered rotary rolling of tubes and bars includes the following steps:

[0040] Step 1: Equipment inspection and billet preparation. Check the stability of the frame and the integrity of each component to ensure that rotating parts are flexible. Select billets according to the material and specifications of the pipes and bars. Clean the surface oil and rust to prepare the foundation for processing and ensure the smooth progress of subsequent processes.

[0041] Step 2: Adjust the equipment parameters. Adjust the rolling angle of the four sets of rollers through the linear guide assembly to ensure that the misalignment angles on the left and right and up and down sides meet the standards and are locked. Set the initial force of the roller pressing assembly and test it. Install and adjust the roller guide plate assembly to make it fit precisely to assist in forming.

[0042] Step 3: Billet feeding. Start the feeding system to smoothly feed the billet into the processing area of ​​the stand. With the help of the roller guide plate assembly, ensure that the billet feed direction is correct and provide an accurate initial position for the spinning process.

[0043] Step 4: Staggered rotary rolling. Start the roller assembly and rotate it at the preset speed. Apply the set pressure with the pressing assembly. Utilize the staggered arrangement of the rollers to perform multi-angle rotary rolling on the billet in steps. Monitor and adjust the force in real time to ensure the forming quality of the tube and bar.

[0044] Step 5: Finished product processing and equipment maintenance. After the finished product is sent out, its size, shape and surface quality are checked. If it passes the test, it will be processed. If it fails the test, it needs to be processed again. After processing is completed, the machine is stopped, the equipment is cleaned and inspected, and lubricant is added to ensure that the equipment is in good condition.

[0045] The present invention discloses the following technical effects:

[0046] The present invention features four sets of rollers arranged in a staggered manner, which, together with the rolling angle adjustment mechanism, enables multi-angle step-by-step rotary rolling, making the billet more uniformly stressed, reducing forming defects, and improving the precision and quality of tubes and bars.

[0047] The roller pressing assembly of this invention can precisely control the force, and combined with the guide plate assembly for auxiliary guidance, it enhances processing stability and reduces the risk of blank deviation.

[0048] The rolling angle of this invention can be flexibly adjusted to adapt to the processing of tubes and bars of different specifications. It has strong versatility, reduces equipment replacement costs, and improves production efficiency.

[0049] The invention has a reasonable overall structural design, is easy to operate and maintain, can stably ensure continuous production, and reduce failure rate and production cost. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1 This is an isometric view of the staggered spinning mechanism for tubes and bars of the present invention;

[0052] Figure 2 This is a front view of the staggered spinning mechanism for tubes and bars of the present invention;

[0053] Figure 3 This is a schematic diagram of the roller assembly of the present invention;

[0054] Figure 4 This is a schematic diagram of the roller pressing assembly of the present invention;

[0055] Figure 5 This is a schematic diagram of the rolling angle adjustment mechanism of the present invention. Figure I ;

[0056] Figure 6 This is a schematic diagram of the rolling angle adjustment mechanism of the present invention. Figure II .

[0057] The components include: 1. machine frame; 2. roller assembly; 3. rolling angle adjustment mechanism; 4. roller pressing assembly; 5. roller guide plate assembly; and 6. linear guide assembly.

[0058] 101. Bottom plate; 102. Side plate; 103. Cover plate;

[0059] 201. Barrel-shaped perforated roll; 202. Tapered tube rolling roll; 203. Bearing housing; 204. Roll shaft;

[0060] 301. Pad; 302. Clip plate; 303. Rotating plate; 304. Adjusting screw;

[0061] 401. Press down the screw; 402. Press down the nut;

[0062] 501. Parallel plate; 502. Mounting arm; 503. Forming block;

[0063] 601. Balance bar; 602. Ball joint assembly. Detailed Implementation

[0064] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0065] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0066] Reference Figures 1-5 The present invention provides a staggered spinning mechanism for tubes and bars, comprising:

[0067] Rack 1;

[0068] Roller assembly 2, there are four sets of roller assembly 2, the four sets of roller assembly 2 are arranged in pairs on the upper, lower and left and right sides of the frame 1 through the rolling angle adjustment mechanism 3. The roller assembly 2 on the left and right sides of the frame 1 is staggered, and the roller assembly 2 on the upper and lower sides of the frame 1 is staggered.

[0069] Roller pressing assembly 4, four sets of roller pressing assembly 4 are provided on the frame 1, and the four sets of roller pressing assembly 4 are respectively arranged with four sets of rolling angle adjustment mechanism 3 to apply force;

[0070] Roller guide plate assembly 5, four sets of roller guide plate assembly 5 are arranged in the frame 1, and the four sets of roller guide plate assembly 5 are respectively arranged between adjacent roller assembly 2 and corresponding to the roller assembly 2, for auxiliary forming;

[0071] Among them, the rolling angle adjustment mechanism 3 is installed on the frame 1 through the linear guide assembly 6, and the rolling angle adjustment mechanism 3 is used to adjust the rolling angle of the roller assembly 2.

[0072] Further optimization of the solution, rack 1 includes:

[0073] Lower base plate 101, the lower base plate 101 is arranged horizontally;

[0074] Side plate 102, two sets of side plates 102 are provided, and the two sets of side plates 102 are symmetrically and vertically fixed to the top surface of the bottom plate 101;

[0075] Cover plate 103 is horizontally fixed to the top surface of the two sets of side plates 102;

[0076] The bottom plate 101, the two sets of side plates 102, and the cover plate 103 together form a rectangular frame structure.

[0077] The frame 1 is a rectangular frame structure formed by a lower base plate 101, two sets of symmetrical side plates 102, and a cover plate 103, providing a rigid support foundation for the entire device. The lower base plate 101 bears the weight of the bottom components, the side plates 102 connect the upper and lower structures and install the side roller assemblies 2, and the cover plate 103 fixes the top components. The overall frame ensures that the components maintain a stable relative position during the rolling process, resists radial and axial forces during processing, and avoids deformation that could affect processing accuracy.

[0078] Further optimization of the design, roller assembly 2 includes:

[0079] The barrel-shaped perforated roll 201 is provided in two sets. The two sets of barrel-shaped perforated rolls 201 are respectively installed on the two sets of side plates 102 through the rolling angle adjustment mechanism 3. The two sets of barrel-shaped perforated rolls 201 are staggered.

[0080] The conical tube rolling roll 202 is provided in two sets. The two sets of conical tube rolling rolls 202 are installed on the lower base plate 101 and the cover plate 103 respectively through the rolling angle adjustment mechanism 3, and the two sets of conical tube rolling rolls 202 are staggered.

[0081] The roller assembly 2 includes two sets of barrel-shaped piercing rolls 201 (mounted on both side plates 102) and two sets of tapered tube rolling rolls 202 (mounted on the lower base plate 101 and cover plate 103), with the rolls in the same direction arranged in a staggered manner. The barrel-shaped piercing rolls 201 mainly perform preliminary piercing and radial extension of the billet, while the tapered tube rolling rolls 202 are responsible for subsequent precision rolling and forming. The staggered arrangement allows the stress points of the billet to be staggered step by step, avoiding local stress concentration. Through the combination of rolling forces in multiple directions and angles, the billet achieves progressive plastic deformation from rough billet to finished product, improving dimensional accuracy and surface quality.

[0082] The design has been further optimized, and the rolling angle adjustment mechanism 3 includes:

[0083] The adjustment box includes a pad 301 and a buckle 302 fixed on the pad 301. A rotating cavity is formed between the pad 301 and the buckle 302. A rotating groove is provided on the pad 301.

[0084] Rotating plate 303 is rotatably connected in the rotating groove, and rotating plate 303 is rotatably connected to buckle plate 302. Both ends of rotating plate 303 are fixedly connected to bosses, and arc-shaped grooves are symmetrically opened on the bosses.

[0085] Adjusting screws 304 are provided in two sets. The buckle plate 302 has threaded holes. The adjusting screws 304 are threaded into the threaded holes respectively. One end of the adjusting screw 304 is fixed with a ball head, and the ball head abuts against the arc groove respectively.

[0086] The roller assembly 2 is mounted on the rotating plate 303, and the adjustment box is mounted on the lower base plate 101, the cover plate 103 and the two sets of side plates 102 via the linear guide assembly 6.

[0087] The pad 301 and the buckle 302 of the adjustment box form a rotating cavity. The rotating plate 303 is rotatably connected to the adjustment box through a rotating groove, and the arc-shaped grooves of the bosses at both ends of the rotating plate 303 abut against the ball head of the adjusting screw 304. When the adjusting screw 304 is rotated, the ball head pushes the rotating plate 303 to rotate around the rotation center along the arc-shaped groove, thereby driving the roller assembly 2 mounted on the rotating plate 303 to rotate, thus achieving precise adjustment of the rolling angle. This structure, through the sliding fit between the arc-shaped groove and the ball head, can flexibly change the contact angle between the roller and the blank, adapting to the processing needs of tubes and bars of different materials and specifications.

[0088] Further optimization of the scheme, the linear guide component 6 includes:

[0089] The balance rod 601 is hinged to the back of the buckle plate 302 via a ball joint assembly 602, and the balance rod 601 passes through the center of the bottom plate 101, the side plate 102, and the cover plate 103 respectively.

[0090] The balance rod 601 is hinged to the back of the buckle plate 302 via a ball joint assembly 602 and passes through the center of each component of the frame 1. The ball joint connection allows the buckle plate 302 to deflect slightly when adjusting the rolling angle, avoiding rigid interference; the balance rod 601, passing through the center of the frame 1, serves as a guide and balancer, ensuring that the adjustment box (and roller assembly 2) moves stably along a preset trajectory during linear movement, preventing offset caused by uneven force, and ensuring the alignment accuracy of the rollers and the blank.

[0091] Further optimizations to the plan include:

[0092] Bearing housing 203 is fixed on rotating plate 303;

[0093] Roll shaft 204 is mounted on bearing housing 203, and roller assembly 2 is mounted on roll shaft 204.

[0094] Further optimization of the scheme, the roller pressing assembly 4 includes:

[0095] Press down screws 401. There are two sets of press down screws 401. The two sets of press down screws 401 are fixed on the back of the buckle plate 302 respectively, and are arranged symmetrically about the balance rod 601.

[0096] Press down the nut 402. The nut 402 rotates on the bottom plate 101, side plate 102 and cover plate 103 respectively, and is arranged in a one-to-one correspondence with the pressing screw 401. The pressing screw 401 passes through the pressing nut 402 and is threadedly engaged with the pressing nut 402.

[0097] The pressing screw 401 is fixed to the back of the buckle plate 302 (symmetrical to the balance rod 601) and threadedly engages with the pressing nut 402 on the frame 1. When the pressing nut 402 is rotated, the pressing screw 401 is moved axially through the threaded transmission, thereby pushing the buckle plate 302 and the entire roller assembly 2 closer to or further away from the billet, achieving precise control of the rolling pressure. The two sets of symmetrically arranged pressing screws 401 ensure that the force is evenly transmitted to the rollers, avoiding billet deformation deviation caused by unilateral force.

[0098] Further optimization of the design includes the roller guide plate assembly 5, which comprises:

[0099] Parallel plate 501 is fixed at the four interior corners of the rectangular frame structure.

[0100] Mounting arms 502 are fixed to parallel plates 501 respectively;

[0101] The molding block 503 is fixed between the mounting arms 502 arranged vertically and vertically, and the left and right adjacent molding blocks 503 are arranged accordingly. One side of the molding block 503 is provided with an arc surface.

[0102] Parallel plates 501 are fixed at the four inner corners of the frame 1. Forming blocks 503 on the mounting arms 502 contact the billet through their arc surfaces, and adjacent forming blocks 503 are arranged to form guide channels. During billet feeding and rolling, the arc surfaces of the forming blocks 503 conform to the surface of the billet, playing a positioning and guiding role and preventing the billet from shifting laterally due to rolling force. At the same time, the upper and lower opposing forming blocks 503, together with the roller assembly 2, help constrain the deformation direction of the billet, ensuring the cross-sectional shape and dimensional accuracy of the tube and bar.

[0103] A method for staggered rotary rolling of tubes and bars includes the following steps:

[0104] Step 1: Equipment inspection and billet preparation. Check the stability of frame 1 and the integrity of each component to ensure that rotating parts are flexible. Select billets according to the material and specifications of the pipes and bars, and clean the surface oil and rust to prepare for processing and ensure the smooth progress of subsequent processes.

[0105] Step 2: Adjust the equipment parameters. Adjust the rolling angle of the four sets of rollers through the linear guide assembly 6 to ensure that the misalignment angles on the left and right and up and down sides meet the standards and are locked. Set the initial force of the roller pressing assembly 4 and test it. Install and adjust the roller guide plate assembly 5 to make it fit precisely to assist in forming.

[0106] Step 3: Billet feeding. Start the feeding system to smoothly feed the billet into the processing area of ​​frame 1. With the help of the roller guide plate assembly 5, ensure the correct feeding direction of the billet and provide an accurate initial position for the rotary rolling process.

[0107] Step 4, staggered rotary rolling: Start roller assembly 2 and rotate at the preset speed. Press down assembly applies the set pressure. Utilize the staggered arrangement of rollers to perform multi-angle rotary rolling on the billet in steps. Monitor and adjust the force in real time to ensure the forming quality of tubes and bars.

[0108] Step 5: Finished product processing and equipment maintenance. After the finished product is sent out, its size, shape and surface quality are checked. If it passes the test, it will be processed. If it fails the test, it needs to be processed again. After processing is completed, the machine is stopped, the equipment is cleaned and inspected, and lubricant is added to ensure that the equipment is in good condition.

[0109] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to 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 this invention.

[0110] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A staggered spinning mechanism for tubes and bars, characterized in that, include: Rack (1); Roller assembly (2), the roller assembly (2) is provided in four groups, the four groups of roller assemblies (2) are arranged in pairs on the upper, lower and left and right sides of the frame (1) respectively through the rolling angle adjustment mechanism (3), the roller assemblies (2) located on the left and right sides of the frame (1) are staggered, and the roller assemblies (2) located on the upper and lower sides of the frame (1) are staggered; Roller pressing assembly (4), four sets of roller pressing assembly (4) are provided on the frame (1), and the four sets of roller pressing assembly (4) are respectively arranged with the four sets of rolling angle adjustment mechanism (3) to apply force; Roller guide plate assembly (5), four sets of roller guide plate assembly (5) are arranged in the frame (1), and the four sets of roller guide plate assembly (5) are respectively arranged between adjacent roller assemblies (2) and corresponding to the roller assemblies (2) for auxiliary forming; The rolling angle adjustment mechanism (3) is installed on the frame (1) via a linear guide assembly (6), and the rolling angle adjustment mechanism (3) is used to adjust the rolling angle of the roller assembly (2).

2. The tube / bar staggered spinning mechanism according to claim 1, characterized in that, The rack (1) includes: The lower base plate (101) is arranged horizontally; Side plate (102), the side plate (102) is provided in two sets, the two sets of side plates (102) are symmetrically and vertically fixed to the top surface of the bottom plate (101); Cover plate (103), the cover plate (103) being horizontally fixed to the top surface of the two sets of side plates (102); The bottom plate (101), the two sets of side plates (102), and the cover plate (103) together form a rectangular frame structure.

3. The staggered spinning mechanism for tubes and bars according to claim 2, characterized in that, The roller assembly (2) includes: Barrel-shaped perforated roll (201), the barrel-shaped perforated roll (201) is provided in two sets, the two sets of barrel-shaped perforated roll (201) are respectively installed on the two sets of side plates (102) through the rolling angle adjustment mechanism (3), and the two sets of barrel-shaped perforated roll (201) are staggered; The conical tube rolling roll (202) is provided in two sets. The two sets of conical tube rolling rolls (202) are respectively installed on the lower base plate (101) and the cover plate (103) through the rolling angle adjustment mechanism (3), and the two sets of conical tube rolling rolls (202) are staggered.

4. The staggered spinning mechanism for tubes and bars according to claim 2, characterized in that, The rolling angle adjustment mechanism (3) includes: An adjustment box, the adjustment box includes a pad (301) and a buckle plate (302) fixed on the pad (301), a rotating cavity is formed between the pad (301) and the buckle plate (302), and a rotating groove is provided on the pad (301); A rotating plate (303) is rotatably connected in the rotating groove, and the rotating plate (303) is rotatably connected to the buckle plate (302). Both ends of the rotating plate (303) are respectively fixedly connected to bosses, and the bosses are symmetrically provided with arc-shaped grooves. Adjusting screws (304) are provided in two sets. The buckle plate (302) has threaded holes. The adjusting screws (304) are threaded into the threaded holes respectively. One end of the adjusting screw (304) is fixed with a ball head. The ball head abuts against the arc groove respectively. The roller assembly (2) is mounted on the rotating plate (303), and the adjustment box is mounted on the lower base plate (101), the cover plate (103), and the two sets of side plates (102) via the linear guide assembly (6).

5. The tube / bar staggered spinning mechanism according to claim 4, characterized in that, The linear guide assembly (6) includes: A balance rod (601) is hinged to the back of the buckle plate (302) via a ball joint assembly (602), and the balance rod (601) passes through the center positions of the lower base plate (101), the side plate (102), and the cover plate (103).

6. The tube / bar staggered spinning mechanism according to claim 4, characterized in that, Also includes: Bearing housing (203), the bearing housing (203) is fixed on the rotating plate (303); A roll shaft (204) is mounted on the bearing housing (203), and the roller assembly (2) is mounted on the roll shaft (204).

7. The tube / bar staggered spinning mechanism according to claim 5, characterized in that, The roller pressing assembly (4) includes: Two sets of pressing screws (401) are provided, and the two sets of pressing screws (401) are respectively fixed to the back of the buckle plate (302) and are symmetrically arranged about the balance rod (601). A pressing nut (402) is installed, which rotates on the lower base plate (101), the side plate (102), and the cover plate (103), respectively, and is arranged in a one-to-one correspondence with the pressing screw (401). The pressing screw (401) passes through the pressing nut (402) and is threadedly engaged with the pressing nut (402).

8. The staggered spinning mechanism for tubes and bars according to claim 2, characterized in that, The roller guide assembly (5) includes: Parallel plate (501), the parallel plate (501) is fixed at the four interior corners of the rectangular frame structure; Mounting arms (502) are respectively fixed on the parallel plates (501); A molding block (503) is fixed between the mounting arms (502) arranged vertically opposite each other, and adjacent molding blocks (503) are arranged correspondingly on the left and right sides. One side of the molding block (503) is provided with an arc surface.

9. A method for staggered spinning of tubes and bars, based on the staggered spinning mechanism for tubes and bars according to any one of claims 1-8, characterized in that, Includes the following steps: Step 1, Equipment inspection and billet preparation, check the stability of the frame (1) and the integrity of each component, ensure that the rotating parts are flexible, select billets according to the material and specifications of the pipe and bar, clean the surface oil and rust, make basic preparations for processing, and ensure the smooth progress of subsequent processes; Step 2, equipment parameter adjustment: adjust the rolling angle of the four sets of rollers through the linear guide assembly (6) to ensure that the misalignment angles on the left and right and the top and bottom sides meet the standards and are locked; set the initial force of the roller pressing assembly (4) and test it; install and adjust the roller guide plate assembly (5) to make it accurately match and assist in forming. Step 3, billet feeding: Start the feeding system and smoothly feed the billet into the processing area of ​​the frame (1). With the help of the roller guide plate assembly (5), ensure that the billet feed direction is correct and provide an accurate initial position for the rotary rolling process; Step 4, staggered rotary rolling: start the roller assembly (2), rotate at the preset speed, press down the assembly to apply the set pressure, and use the staggered arrangement of the rollers to perform multi-angle rotary rolling on the billet in steps. Monitor and adjust the force in real time to ensure the forming quality of the tube and bar. Step 5: Finished product processing and equipment maintenance. After the finished product is sent out, its size, shape and surface quality are checked. If it passes the test, it will be processed. If it fails the test, it needs to be processed again. After processing is completed, the machine is stopped, the equipment is cleaned and inspected, and lubricant is added to ensure that the equipment is in good condition.

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