A grinding device for external circle machining of seamless steel pipe

Abstract

The application discloses a grinding device for outer circle machining of a seamless steel pipe and belongs to the technical field of grinding of seamless steel pipes. The grinding device comprises an operation table, a driving module is arranged on the top of the operation table, a driving roller is connected to the output end of the driving module, a plurality of sanding belts are arranged on the outer wall of the driving roller, a base frame and a compensation device are further arranged. In the application, the long axis part of the pipe body contacts the sanding belt, so that the sanding belt drives the supporting roller to move radially, thereby driving the movable ring to slide in the movable groove. When the movable ring moves, the connecting block and the transmission plate respectively extrude and stretch the first spring, so that the first spring generates a rebound force. When the pipe body rotates to the short shaft part, the rebound force of the first spring drives the movable ring to move back to the original position. The movable ring drives the supporting roller to move back to the original position, so that the supporting roller drives the sanding belt to contact the short shaft part of the pipe body, thereby avoiding the problem that the long axis part of the pipe body has a large grinding amount and the short shaft part cannot be ground.

Description

Technical Field

[0001] This invention belongs to the field of seamless steel pipe grinding technology, and particularly relates to a grinding device for machining the outer diameter of seamless steel pipes. Background Technology

[0002] Seamless steel pipes are hollow long steel products made from a single solid round steel bar through processes such as piercing and rolling. They are named for the fact that their pipe walls have no weld seams. During the production and manufacturing process of seamless steel pipes, special grinding equipment is usually required to grind and polish their surfaces to meet subsequent usage standards.

[0003] However, in actual use, seamless steel pipes generally have excessive ellipticity in their cross-sections after undergoing rolling, heat treatment, and other processes. Existing grinding equipment mostly adopts a traditional rigid support roller and fixed abrasive belt structure. In actual operation, the rigid structure causes the abrasive belt to only contact a local area of ​​the pipe wall, resulting in a large amount of grinding at the major axis of the ellipse, while almost no material is removed at the minor axis. After grinding, the roundness of the pipe is still difficult to meet the standard. Therefore, there is an urgent need for a grinding device for processing the outer diameter of seamless steel pipes to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a grinding device for machining the outer diameter of seamless steel pipes, in order to solve the problems of poor adaptability and low processing accuracy of traditional equipment when dealing with elliptical tubes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a grinding device for machining the outer circle of seamless steel pipe, including an operating table, a drive module installed on the top of the operating table, a drive roller connected to the output end of the drive module, a plurality of grinding belts being driven on the outer wall of the drive roller, and a base frame and a compensation device.

[0006] The base frame is installed on one side of the operating table. The top of the base frame is provided with two load-bearing rollers, and the top of the two load-bearing rollers is provided with the same tube. The compensation device is installed on one side of the operating table. The compensation device includes a positioning roller. Multiple support rollers are driven on the surface of the positioning roller. The surface of the support roller is in contact with the inner wall of the corresponding sanding belt.

[0007] As a further description of the above technical solution:

[0008] The compensation device also includes a bracket, a movable groove, and a movable ring;

[0009] One side of the bracket is connected to one side of the operating table, and a rotating shaft is connected between the brackets. The outer wall of the rotating shaft is rotatably connected to the inner wall of the positioning roller. Multiple movable grooves are opened on the outer wall of the positioning roller. The outer walls of multiple movable rings are slidably connected to the inner walls of the corresponding movable grooves, and the outer walls of the movable rings are connected to the inner walls of the corresponding support rollers. An internal groove is opened in the movable ring.

[0010] As a further description of the above technical solution:

[0011] The compensation device also includes a connecting block, a transmission plate, and a sliding block;

[0012] One side of each of the connecting blocks is connected to the inner wall of the built-in groove, one side of each of the transmission plates is rotatably connected to the corresponding connecting block, one side of each of the sliding blocks is provided with a hinge groove, one side of the hinge groove is hinged to the other end of the corresponding transmission plate, and a sliding sleeve is embedded in the sliding block.

[0013] As a further description of the above technical solution:

[0014] The compensation device also includes a mounting bracket, a fixing rod, and a first spring;

[0015] Multiple mounting brackets are respectively installed on the inner wall of the corresponding movable slot, and the outer wall of the sliding block is attached to and slidably connected with the inner wall of the corresponding mounting bracket. The outer walls of multiple fixed rods are slidably connected with the inner wall of the corresponding sliding sleeve, and one side of the fixed rod is connected to one side of the inner wall of the mounting bracket. Multiple first springs are sleeved on the outside of the corresponding fixed rods, and the two ends of the first springs are respectively connected to one side of the sliding block and one side of the inner wall of the mounting bracket.

[0016] As a further description of the above technical solution:

[0017] The compensation device also includes a stroke groove;

[0018] Multiple travel grooves are formed on one side of the inner wall of the corresponding mounting bracket, and travel blocks are slidably connected to the inner wall of the travel grooves. One side of the travel block is connected to the side of the corresponding sliding block.

[0019] As a further description of the above technical solution:

[0020] The top of the operating table is provided with a mounting groove, and a tensioning device is installed in the mounting groove. The tensioning device includes a support plate and a support cylinder.

[0021] Both ends of the support plate are connected to one side of the inner wall of the mounting groove, and the tops of the multiple support cylinders are connected to the bottom of the support plate. The inner wall of the support cylinder is provided with multiple limiting grooves, and the other side of the limiting grooves extends to the outside of the support cylinder.

[0022] As a further description of the above technical solution:

[0023] The tensioning device also includes a sliding cylinder, a second spring, and a side plate;

[0024] Multiple sliding cylinder outer walls are attached to and slidably connected to the corresponding support cylinder inner walls. Multiple limiting blocks are connected to the outer walls of the sliding cylinders. The outer walls of the limiting blocks are slidably connected to the inner walls of the limiting grooves. One end of multiple second springs is connected to one side of the corresponding support cylinder, and the other end of the second springs is connected to the inner wall of the sliding cylinder. One side of multiple side plates is connected to the outer wall of the sliding cylinder, and a tension roller is rotatably connected between two side plates. The outer wall of the tension roller is attached to the inner wall of the corresponding abrasive belt.

[0025] As a further description of the above technical solution:

[0026] The base frame is equipped with a stabilizing device, which includes a support frame, a sliding sleeve, and a motor.

[0027] The support frame is located at the bottom of the base frame. The inner walls of the two sliding sleeves are slidably connected to the outer wall of the support frame, and a threaded seat is connected between the two sliding sleeves. A top block is connected to the top of the sliding sleeve. One side of the motor is fixedly installed to one side of the support frame, and the output shaft of the motor is connected to a threaded rod. The outer wall of the threaded rod is threadedly connected to the inner wall of the threaded seat, and the other end of the threaded rod is rotatably connected to one side of the inner wall of the support frame.

[0028] As a further description of the above technical solution:

[0029] The stabilizing device also includes a support ring, a mounting ring, and a sliding rod;

[0030] The outer wall of the support ring is connected to the top of the top block, and the support ring is sleeved on the outside of the bearing roller. The outer wall of the support ring has a moving groove. The mounting ring is installed inside the support ring, and the mounting ring has multiple sliding holes. The outer walls of the multiple sliding rods are slidably connected to the inner walls of the corresponding sliding holes. The sliding rods have a margin groove. The inner wall of the margin groove is connected to a transmission rod, and the other end of the sliding rod is rotatably connected to a contact wheel.

[0031] As a further description of the above technical solution:

[0032] The stabilizing device also includes an adjusting ring, a transmission groove, a hinge block, and a top plate;

[0033] The outer wall of the adjusting ring is rotatably connected to the inner wall of the support ring, and the inner wall of the adjusting ring is located in the allowance groove. Multiple transmission grooves are opened in the adjusting ring, and the inner wall of the transmission groove is slidably connected to the outer wall of the corresponding transmission rod. One side of the hinge block is connected to the outer wall of the adjusting ring, and the hinge block extends out of the support ring through the moving groove. A guide plate is hinged to the bottom of the hinge block. The bottom of both top plates is connected to the top of the support frame, and a guide frame is connected between the two top plates. The inner wall of the guide frame is slidably connected to the outer wall of the guide plate.

[0034] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0035] 1. In this invention, by setting a compensation device, the long axis of the tube body contacts the grinding belt, causing the grinding belt to drive the support roller to move radially. This causes the support roller to drive the movable ring to slide in the movable groove. When the movable ring moves, the connecting block and the transmission plate respectively squeeze and stretch the first spring, causing the first spring to generate a rebound force. When the tube body rotates to the short axis, the rebound force of the first spring drives the movable ring to reset. The movable ring drives the support roller to reset, causing the support roller to drive the grinding belt to contact the short axis of the tube body. This avoids excessive grinding on the long axis of the tube body, preventing the short axis from being unable to be ground.

[0036] 2. In this invention, by setting a tensioning device, when the support roller moves radially, the rebound force generated by the second spring during installation causes the second spring to drive the sliding cylinder to move, the sliding cylinder to drive the side plate to move, and the side plate to drive the tensioning roller to move. Therefore, the tensioning roller supports the sanding belt, ensuring that the sanding belt always maintains a certain tension, and avoiding insufficient tension of the sanding wheel causing the sanding wheel to slip off and affect its use.

[0037] 3. In this invention, by setting a stabilizing device, the support ring is moved by the motor drive, and the support ring moves the internal adjusting ring and mounting ring. This causes the adjusting ring to move the guide plate through the hinge block, so that the guide plate slides in the guide frame. Therefore, the guide plate moves to one side, and the adjusting ring moves through the hinge block. The transmission rod slides in the transmission groove, so that the transmission rod drives the contact wheel to move through the sliding rod and contact the tube surface. This fixes the tube body, preventing the excessively long tube body from vibrating up and down at high frequency during grinding, which would cause continuous spiral patterns to form on the tube wall, damaging the surface roughness and affecting its use. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the three-dimensional structure proposed in this invention;

[0039] Figure 2 This is a schematic diagram of the compensation device structure proposed in this invention;

[0040] Figure 3 The present invention proposes Figure 2 Enlarged structural diagram of section A;

[0041] Figure 4 This is a schematic diagram of the built-in slot structure proposed in this invention;

[0042] Figure 5 This is a schematic diagram of the mounting groove structure proposed in this invention;

[0043] Figure 6 This is a schematic diagram of the tensioning device structure proposed in this invention;

[0044] Figure 7This is a schematic diagram of the stabilization device structure proposed in this invention;

[0045] Figure 8 This is a schematic diagram of the regulating ring structure proposed in this invention;

[0046] Figure 9 The present invention proposes Figure 8 Enlarged structural diagram of section B;

[0047] Figure 10 The present invention proposes Figure 8 Enlarged structural diagram of section C;

[0048] Figure 11 The present invention proposes Figure 8 Enlarged structural diagram of section D.

[0049] Legend:

[0050] 1. Operating table; 2. Drive module; 3. Drive roller; 4. Grinding belt; 5. Tube body; 6. Base frame; 7. Compensation device; 701. Support roller; 702. Movable ring; 703. Internal groove; 704. Positioning roller; 705. Bracket; 706. Movable groove; 707. Rotating shaft; 708. Connecting block; 709. Transmission plate; 710. Mounting bracket; 711. Fixed rod; 712. Hinge groove; 713. Sliding block; 714. First spring; 715. Stroke block; 716. Stroke groove; 8. Tensioning device; 801. Support plate; 802. Support cylinder; 803. Limiting groove; 804. Second spring; 805. Limiting block; 806. Side plate; 807. Tensioning roller; 808. Sliding cylinder; 9. Stabilizing device; 901. Support frame; 902. Sliding sleeve; 903. Top block; 904. Support ring; 905. Adjusting ring; 906. Mounting ring; 907. Motor; 908. Threaded seat; 909. Threaded rod; 910. Top plate; 911. Transmission groove; 912. Sliding rod; 913. Contact wheel; 914. Guide frame; 915. Reserve groove; 916. Sliding hole; 917. Transmission rod; 918. Moving groove; 919. Hinge block; 920. Guide plate; 10. Loading roller; 11. Mounting groove. Detailed Implementation

[0051] 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.

[0052] Please see Figures 1-4The present invention provides a technical solution: a grinding device for processing the outer circle of a seamless steel pipe, including an operating table 1, a drive module 2 installed on the top of the operating table 1, a drive roller 3 connected to the output end of the drive module 2, and multiple grinding belts 4 driven on the outer wall of the drive roller 3, and also including a base frame 6 and a compensation device 7.

[0053] The base frame 6 is installed on one side of the operating table 1. The top of the base frame 6 is provided with two supporting rollers 10, and the top of the two supporting rollers 10 is provided with the same tube body 5. The compensation device 7 is installed on one side of the operating table 1. The compensation device 7 includes a positioning roller 704. Multiple support rollers 701 are driven on the surface of the positioning roller 704. The surface of the support roller 701 is in contact with the inner wall of the corresponding sanding belt 4.

[0054] Furthermore, the compensation device 7 also includes a bracket 705, a movable groove 706, and a movable ring 702;

[0055] One side of the bracket 705 is connected to one side of the operating table 1, and a rotating shaft 707 is connected between the brackets 705. The outer wall of the rotating shaft 707 is rotatably connected to the inner wall of the positioning roller 704. Multiple movable grooves 706 are opened on the outer wall of the positioning roller 704. The outer walls of multiple movable rings 702 are slidably connected to the inner walls of the corresponding movable grooves 706, and the outer walls of the movable rings 702 are connected to the inner walls of the corresponding support rollers 701. An internal groove 703 is opened in the movable rings 702.

[0056] Furthermore, the compensation device 7 also includes a connecting block 708, a transmission plate 709, and a sliding block 713;

[0057] One side of multiple connecting blocks 708 is connected to the inner wall of the built-in groove 703, one side of multiple transmission plates 709 is rotatably connected to one side of the corresponding connecting block 708, one side of multiple sliding blocks 713 is provided with a hinge groove 712, one side of the hinge groove 712 is hinged to the other end of the corresponding transmission plate 709, and a sliding sleeve is embedded in the sliding block 713.

[0058] Furthermore, the compensation device 7 also includes a mounting bracket 710, a fixing rod 711, and a first spring 714;

[0059] Multiple mounting brackets 710 are respectively installed on the inner wall of the corresponding movable groove 706, and the outer wall of the sliding block 713 is attached to and slidably connected with the inner wall of the corresponding mounting bracket 710. The outer walls of multiple fixing rods 711 are slidably connected with the inner wall of the corresponding sliding sleeve, and one side of the fixing rod 711 is connected to one side of the inner wall of the mounting bracket 710. Multiple first springs 714 are sleeved on the outside of the corresponding fixing rods 711, and the two ends of the first springs 714 are respectively connected to one side of the sliding block 713 and one side of the inner wall of the mounting bracket 710.

[0060] Furthermore, the compensation device 7 also includes a stroke groove 716;

[0061] Multiple travel grooves 716 are formed on one side of the inner wall of the corresponding mounting bracket 710, and a travel block 715 is slidably connected to the inner wall of the travel groove 716. One side of the travel block 715 is connected to one side of the corresponding sliding block 713.

[0062] The specific implementation method is as follows: By setting a compensation device 7, the long axis of the tube body 5 contacts the abrasive belt 4, causing the abrasive belt 4 to drive the support roller 701 to move radially. This causes the support roller 701 to drive the movable ring 702 to slide within the movable groove 706. When the movable ring 702 moves, it drives the connecting block 708 to move. The connecting block 708 drives one side of the transmission plate 709 to move, and the other side of the transmission plate 709 drives the sliding block 713 to move. The movement of multiple sliding blocks 713 compresses and stretches the first spring 714, causing the first spring 714 to generate a rebound force to store energy. A fixing rod 711 is set to support the compressed first spring 714 to prevent the first spring 714 from bending during compression and affecting the first spring 714. The spring 714 rebounds, and the tube 5 continues to rotate. The rebound force of the first spring 714 drives the sliding block 713 to reset. The sliding block 713 drives the transmission plate 709 to reset through the hinge groove 712. Therefore, the transmission plate 709 drives the movable ring 702 to reset. The movable ring 702 drives the support roller 701 to reset, so that the support roller 701 drives the grinding belt 4 to contact the short shaft part of the tube 5. This avoids the long shaft part of the tube 5 being ground too much and the short shaft part being unable to be ground. By setting the stroke block 715 to slide in the stroke groove 716, the stroke block 715 supports the sliding block 713 and prevents the sliding block 713 from deviating during movement, causing jamming and affecting normal operation.

[0063] Please see Figures 5-6 The top of the operating table 1 is provided with an installation groove 11, and a tensioning device 8 is installed in the installation groove 11. The tensioning device 8 includes a support plate 801 and a support cylinder 802.

[0064] The two ends of the support plate 801 are connected to one side of the inner wall of the mounting groove 11, and the tops of the multiple support cylinders 802 are connected to the bottom of the support plate 801. The inner wall of the support cylinder 802 is provided with multiple limiting grooves 803, and the other side of the limiting grooves 803 extends to the outside of the support cylinder 802.

[0065] Furthermore, the tensioning device 8 also includes a sliding cylinder 808, a second spring 804, and a side plate 806;

[0066] Multiple sliding cylinders 808 have their outer walls attached to and slidably connected to the inner walls of their corresponding support cylinders 802. Multiple limiting blocks 805 are connected to the outer walls of the sliding cylinders 808. The outer walls of the limiting blocks 805 are slidably connected to the inner walls of the limiting grooves 803. One end of multiple second springs 804 is connected to one side of the corresponding support cylinder 802, and the other end of the second springs 804 is connected to the inner wall of the sliding cylinder 808. One side of multiple side plates 806 is connected to the outer wall of the sliding cylinder 808, and a tension roller 807 is rotatably connected between two side plates 806. The outer wall of the tension roller 807 is attached to the inner wall of the corresponding abrasive belt 4.

[0067] The specific implementation method is as follows: By setting a tensioning device 8, when the support roller 701 of the tube body 5 causes radial floating displacement due to its own ellipticity during the seamless steel pipe grinding operation, the second spring 804 releases the rebound force by relying on the preset elastic potential energy, driving the sliding cylinder 808 to generate compensating displacement along the axial direction. The sliding cylinder 808 drives the side plate 806 and the tensioning roller 807 installed on it to move synchronously, thereby adjusting the wrap angle and tension of the sanding belt 4 in real time, ensuring that the sanding belt 4 maintains a constant optimal tension state throughout the entire processing process, effectively overcoming the tension fluctuation caused by the cross-sectional deformation of the tube body 5, and fundamentally eliminating the slippage, deviation and abnormal fall-off phenomena of the sanding belt 4 caused by tension decay. By setting a limit block 805 to slide in the limit groove 803, the limit block 805 provides limit support for the sliding cylinder 808, preventing the sliding cylinder 808 from deviating and affecting stability when sliding in the support cylinder 802.

[0068] Please see Figures 7-11 The base frame 6 is equipped with a stabilizing device 9, which includes a support frame 901, a sliding sleeve 902 and a motor 907.

[0069] The support frame 901 is located at the bottom of the base frame 6. The inner walls of the two sliding sleeves 902 are slidably connected to the outer wall of the support frame 901, and a threaded seat 908 is connected between the two sliding sleeves 902. A top block 903 is connected to the top of the sliding sleeves 902. One side of the motor 907 is fixedly installed on one side of the support frame 901, and the output shaft of the motor 907 is connected to a threaded rod 909. The outer wall of the threaded rod 909 is threadedly connected to the inner wall of the threaded seat 908, and the other end of the threaded rod 909 is rotatably connected to one side of the inner wall of the support frame 901.

[0070] Furthermore, the stabilizing device 9 also includes a support ring 904, a mounting ring 906, and a sliding rod 912;

[0071] The outer wall of the support ring 904 is connected to the top of the top block 903, and the support ring 904 is sleeved on the outside of the bearing roller 10. The outer wall of the support ring 904 has a moving groove 918. The mounting ring 906 is installed inside the support ring 904, and the mounting ring 906 has multiple sliding holes 916. The outer walls of multiple sliding rods 912 are slidably connected to the inner walls of the corresponding sliding holes 916. The sliding rods 912 have a margin groove 915. The inner wall of the margin groove 915 is connected to a transmission rod 917, and the other end of the sliding rod 912 is rotatably connected to a contact wheel 913.

[0072] Furthermore, the stabilizing device 9 also includes an adjusting ring 905, a transmission groove 911, a hinge block 919, and a top plate 910;

[0073] The outer wall of the adjusting ring 905 is rotatably connected to the inner wall of the support ring 904, and the inner wall of the adjusting ring 905 is located in the allowance groove 915. Multiple transmission grooves 911 are opened in the adjusting ring 905, and the inner wall of the transmission groove 911 is slidably connected to the outer wall of the corresponding transmission rod 917. One side of the hinge block 919 is connected to the outer wall of the adjusting ring 905, and the hinge block 919 extends out of the support ring 904 through the moving groove 918. A guide plate 920 is hinged to the bottom of the hinge block 919. The bottoms of the two top plates 910 are connected to the top of the support frame 901, and a guide frame 914 is connected between the two top plates 910. The inner wall of the guide frame 914 is slidably connected to the outer wall of the guide plate 920.

[0074] The specific implementation method is as follows: By setting a stabilizing device 9, the motor 907 drives the threaded rod 909 to rotate. The threaded seat 908 is threadedly connected to the outer wall of the threaded rod 909, causing the threaded rod 909 to drive the threaded seat 908 to move. The threaded seat 908 drives the sliding sleeves 902 on both sides to move. The sliding sleeves 902 drive the top block 903 to move. The top block 903 drives the support ring 904 to move. The support ring 904 drives the internal adjusting ring 905 and mounting ring 906 to move, thereby causing the adjusting ring 905 to drive the hinge block 919 to move. The hinge block 919 drives the guide plate 920 to move, causing the guide plate 920 to slide within the guide frame 914. The guide frame 914 guides the guide plate 920 to move laterally, which in turn moves the hinge block 919. The hinge block 919 moves the adjusting ring 905, which in turn rotates the transmission groove 911. The transmission rod 917 slides within the transmission groove 911, causing the transmission rod 917 to move the sliding rod 912. The sliding rod 912 then moves the contact wheel 913, bringing the contact wheel 913 into contact with the surface of the tube body 5. This fixes the tube body 5 in place, preventing high-frequency vibrations during grinding of an excessively long tube body 5, which would otherwise cause continuous spiral patterns on the tube wall, damaging the surface roughness and affecting its use.

[0075] Working principle: During use, the tube 5 to be ground is placed on the support roller 10. The drive module 2 drives the drive roller 3 to rotate. When the tube 5 rotates, the long axis part of the tube 5 surface will contact the abrasive belt 4. The pressure generated will drive the support roller 701 to move radially. The movement of the support roller 701 will push the movable ring 702 to slide in the movable groove 706, and compress the first spring 714 through the connecting block 708 and the transmission plate 709, so that it generates a rebound force. When the tube 5 rotates to the short axis part, the compressed first spring 714 releases the rebound force, and drives the support roller 701 to reset through the sliding block 713 and the transmission plate 709, so that the abrasive belt 4 can continuously and stably adhere to the surface of the tube 5, thereby achieving uniform grinding of the elliptical tube. During the radial movement of the support roller 701, the second spring 804 generates The rebound force drives the sliding cylinder 808 to move, which in turn drives the side plate 806 and the tension roller 807 to work together to adjust the wrap angle and tension of the sanding belt 4 in real time, ensuring that the optimal tension is maintained throughout the entire processing process and preventing slippage or detachment. At the same time, the motor 907 drives the threaded rod 909 to rotate, causing the threaded seat 908 and the support ring 904 to move. The support ring 904 drives the guide plate 920 to slide within the guide frame 914 through the adjusting ring 905 and the hinge block 919, so that the guide plate 920 drives the adjusting ring 905 to rotate through the hinge block 919. Therefore, the adjusting ring 905 drives the sliding rod 912 through the transmission rod 917 to drive the contact wheel 913 to move, so that it contacts the surface of the tube body 5 and provides support, effectively avoiding high-frequency vibration of the excessively long tube body 5 during grinding, and ensuring grinding accuracy and surface quality.

[0076] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0077] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0078] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0079] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0080] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A grinding device for machining the outer diameter of a seamless steel pipe, comprising an operating table (1), a drive module (2) mounted on the top of the operating table (1), a drive roller (3) connected to the output end of the drive module (2), and a plurality of grinding belts (4) provided on the outer wall of the drive roller (3), characterized in that, Also includes: The base frame (6) is installed on one side of the operating table (1). The top of the base frame (6) is provided with two load-bearing rollers (10), and the top of the two load-bearing rollers (10) is provided with the same tube body (5). The compensation device (7) is installed on one side of the operating table (1). The compensation device (7) includes a positioning roller (704). The surface of the positioning roller (704) is provided with multiple support rollers (701). The surface of the support rollers (701) is in contact with the inner wall of the corresponding sanding belt (4).

2. The grinding device for machining the outer diameter of a seamless steel pipe according to claim 1, characterized in that, The compensation device (7) further includes: A bracket (705) is connected to one side of the operating table (1), and a rotating shaft (707) is connected between the brackets (705). The outer wall of the rotating shaft (707) is rotatably connected to the inner wall of the positioning roller (704). Movable grooves (706), a plurality of said movable grooves (706) are formed on the outer wall of the positioning roller (704); The movable ring (702) has an outer wall that is slidably connected to the inner wall of the corresponding movable groove (706), and the outer wall of the movable ring (702) is connected to the inner wall of the corresponding support roller (701). The movable ring (702) has an internal groove (703).

3. The grinding device for machining the outer diameter of a seamless steel pipe according to claim 2, characterized in that, The compensation device (7) further includes: Connecting blocks (708), one side of the plurality of connecting blocks (708) is connected to the inner wall of the built-in groove (703); Transmission plates (709), one side of the plurality of transmission plates (709) is rotatably connected to one side of the corresponding connecting block (708); Sliding blocks (713), a plurality of sliding blocks (713) have hinge grooves (712) on one side, one side of the hinge grooves (712) is hinged to the other end of the corresponding transmission plate (709), and a sliding sleeve is embedded in the sliding blocks (713).

4. A grinding device for machining the outer diameter of a seamless steel pipe according to claim 3, characterized in that, The compensation device (7) further includes: Mounting brackets (710), a plurality of mounting brackets (710) are respectively mounted on the inner wall of the corresponding movable groove (706), and the outer wall of the sliding block (713) is attached to and slidably connected to the inner wall of the corresponding mounting bracket (710); Fixed rod (711), the outer wall of the plurality of fixed rods (711) is slidably connected to the inner wall of the corresponding sliding sleeve, and one side of the fixed rod (711) is connected to one side of the inner wall of the mounting bracket (710); First spring (714), multiple first springs (714) are sleeved on the outside of corresponding fixed rods (711), and the two ends of the first spring (714) are respectively connected to one side of the sliding block (713) and one side of the inner wall of the mounting bracket (710).

5. A grinding device for machining the outer diameter of a seamless steel pipe according to claim 4, characterized in that, The compensation device (7) further includes: The stroke groove (716) is formed on one side of the inner wall of the corresponding mounting bracket (710), and the inner wall of the stroke groove (716) is slidably connected to the stroke block (715), and one side of the stroke block (715) is connected to one side of the corresponding sliding block (713).

6. A grinding device for machining the outer diameter of a seamless steel pipe according to claim 1, characterized in that, The top of the operating table (1) is provided with a mounting groove (11), and a tensioning device (8) is installed in the mounting groove (11). The tensioning device (8) includes: Support plate (801), both ends of which are connected to one side of the inner wall of the mounting groove (11); The top of each of the multiple support cylinders (802) is connected to the bottom of the support plate (801), and the inner wall of the support cylinder (802) is provided with multiple limiting grooves (803), the other side of which extends to the outside of the support cylinder (802).

7. A grinding device for machining the outer diameter of a seamless steel pipe according to claim 6, characterized in that, The tensioning device (8) further includes: A sliding cylinder (808) has its outer wall attached to and slidably connected to the inner wall of a corresponding support cylinder (802). The outer wall of the sliding cylinder (808) is connected to a plurality of limiting blocks (805), and the outer wall of the limiting block (805) is slidably connected to the inner wall of the limiting groove (803). The second spring (804) has one end connected to one side of the corresponding support cylinder (802), and the other end of the second spring (804) is connected to the inner wall of the sliding cylinder (808); Side plate (806), one side of the multiple side plates (806) is connected to the outer wall of the sliding cylinder (808), and a tension roller (807) is rotatably connected between two side plates (806), the outer wall of the tension roller (807) is in contact with the inner wall of the corresponding sanding belt (4).

8. A grinding device for machining the outer diameter of a seamless steel pipe according to claim 1, characterized in that, The base frame (6) is equipped with a stabilizing device (9), which includes: Support frame (901), the support frame (901) is located at the bottom of the base frame (6); The sliding sleeve (902) has its inner walls slidably connected to the outer wall of the support frame (901), and a threaded seat (908) is connected between the two sliding sleeves (902). A top block (903) is connected to the top of the sliding sleeve (902). The motor (907) is fixedly installed on one side of the support frame (901), and the output shaft of the motor (907) is connected to a threaded rod (909). The outer wall of the threaded rod (909) is threadedly connected to the inner wall of the threaded seat (908), and the other end of the threaded rod (909) is rotatably connected to the inner wall of the support frame (901).

9. A grinding device for machining the outer diameter of a seamless steel pipe according to claim 8, characterized in that, The stabilizing device (9) further includes: Support ring (904), the outer wall of the support ring (904) is connected to the top of the top block (903), and the support ring (904) is sleeved on the outside of the carrying roller (10). The outer wall of the support ring (904) is provided with a moving groove (918). Mounting ring (906), which is installed inside the support ring (904), and the mounting ring (906) has a plurality of sliding holes (916). The sliding rod (912) has its outer wall slidably connected to the inner wall of the corresponding sliding hole (916), and a margin groove (915) is provided in the sliding rod (912). A transmission rod (917) is connected to the inner wall of the margin groove (915), and a contact wheel (913) is rotatably connected to the other end of the sliding rod (912).

10. A grinding device for machining the outer diameter of a seamless steel pipe according to claim 9, characterized in that, The stabilizing device (9) further includes: Adjusting ring (905), the outer wall of the adjusting ring (905) is rotatably connected to the inner wall of the support ring (904), and the inner wall of the adjusting ring (905) is located in the allowance groove (915); The transmission groove (911) is provided in the adjusting ring (905), and the inner wall of the transmission groove (911) is slidably connected to the outer wall of the corresponding transmission rod (917). A hinge block (919) is connected to the outer wall of the adjusting ring (905) on one side, and the hinge block (919) extends out of the support ring (904) through the moving groove (918), and a guide plate (920) is hinged to the bottom of the hinge block (919). The top plate (910) has its bottom connected to the top of the support frame (901), and a guide frame (914) is connected between the two top plates (910). The inner wall of the guide frame (914) is slidably connected to the outer wall of the guide plate (920).

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