Multifunctional integrated processing device for seamless steel pipe and processing method thereof

Abstract

The application discloses a kind of seamless steel pipe multifunctional integrated processing device and its processing method, including the modularization frame of support and main body detachable connection, conveying and clamping mechanism are arranged on the modularization frame, annular motion mechanism is arranged in the support, it includes the rotating ring that can make rotary motion around steel pipe axis, and by the rotating ring drive and can be radially fed relative to it displacement rod;Composite machining spindle mechanism is installed in the end of the displacement rod, integrates cutting unit and polishing unit.By modularization frame, conveying and clamping mechanism and the composite machining spindle mechanism including cutting unit and polishing unit are integrated in the same processing device, compact structure, can be completed in one clamping, continuously cutting steel pipe, cutting surface polishing machine and the polishing of cutting steel pipe port inner and outer edge, improve the quality and efficiency of steel pipe processing.

Description

Technical Field

[0001] This invention relates to the field of seamless steel pipe processing equipment technology, and in particular to a multi-functional integrated processing device for seamless steel pipes and its processing method. Background Technology

[0002] Due to limitations in metal pipe cutting processes, burrs often remain at the cut ends after pipe cutting, requiring further processing to meet usage requirements. Especially in fields such as boiler piping, energy transportation, and high-end equipment, large-diameter seamless steel pipes are crucial materials, and the quality of their end processing directly affects welding quality, which in turn impacts pipe sealing and structural strength.

[0003] In traditional large-diameter seamless steel pipe production processes, cutting and grinding are separated into independent steps, with separate layouts for cutting and grinding equipment. This requires transferring or conveying the cut pipes to the grinding equipment, increasing the equipment footprint and adding extra time for off-line processing. The pipes also require multiple clamping operations, leading to accumulated positioning errors, unstable end-processing quality, and impacting production efficiency and product quality consistency. For example, Chinese invention patent CN117644449A discloses a pipe end angle grinding device for seamless steel pipes. Utilizing the cooperation between the drive mechanism and switching components, the synchronous rotation of the coupling ring and belt allows the grinding disc to perform inner-circle grinding operations. After the coupling ring drives the seamless steel pipe body to rotate one revolution, the belt drives the rack plate and drive gear to mesh and rotate, causing the grinding disc and mounting plate to deflect. Subsequently, under the cooperation of elastic and fixed components, the device switches to outer-edge grinding operations. Chinese invention patent CN115890375A discloses an end-face grinding device for seamless steel pipes, which utilizes a rotating component, a moving component, and an elastic grinding head mounted on a base to grind the end face and inner ring of the seamless steel pipe. All of the aforementioned patent documents describe independently configured grinding equipment, which is not conducive to improving the production efficiency of seamless steel pipe processing.

[0004] To improve the production efficiency of seamless steel pipe processing, Chinese invention patent CN112975416A discloses an automated processing device and process for seamless steel pipes. The device includes a first worktable and a second worktable horizontally positioned above it. Multiple conveying mechanisms are installed on the first worktable. A cutting mechanism is installed on the first worktable near the second worktable. A deflector belt is installed at the junction of the first and second worktables. A grinding mechanism, a flaw detection device, and a waste material ejector are sequentially installed on the second worktable away from the first worktable. Through this integrated device and PLC controller, the subsequent cutting, grinding, and inspection of the formed long seamless steel pipes can be automated. By using a production line approach and a deflector belt between the cutting and grinding worktables, the cut pipes are automatically transferred to the grinding process, thereby improving the production efficiency of pipe processing. However, the steel pipes need to be re-clamped when transferred between the cutting and grinding equipment, which is not only inefficient, but also easily leads to uneven chamfering at the end after grinding. The processing efficiency and quality need to be further improved. In addition, its assembly line layout makes a single set of equipment occupy a large area, and in order to ensure stability, it usually adopts an integral welded and fixed structure, which makes it difficult to move and maintain the frame, resulting in poor flexibility and practicality. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-functional integrated processing device and method for seamless steel pipes. It has a compact structure, is easy to disassemble and maintain, and can continuously complete the cutting of steel pipes, the instantaneous grinding of the cut surface, and the grinding of the inner and outer edges of the two sections of steel pipes formed after cutting in one clamping, thereby improving the quality and efficiency of steel pipe processing.

[0006] To solve the above-mentioned technical problems, the embodiments of the present invention provide a technical solution as follows: A multi-functional integrated processing device for seamless steel pipes, comprising: a modular frame, which includes a first main body and a second main body arranged opposite to each other, and a support detachably connected between the two; a conveying and clamping mechanism, which is disposed on the modular frame and is used for axial feeding, fixing and output of the steel pipe; a ring motion mechanism, which is disposed in the support and includes a rotating ring that can rotate around the axis of the steel pipe, and a displacement rod driven by the rotating ring and capable of radial feeding relative to it; a composite processing spindle mechanism, which is installed at the end of the displacement rod and includes: a cutting unit, which has a cutting spindle capable of rotating around its own axis. A high-speed rotating rod and a cutter disposed at its end, wherein a grinding disc is fixedly disposed on at least one end face of the cutter; a grinding unit, comprising a connecting rod slidably disposed axially within the rotating rod, and grinding heads respectively fixed to both ends of the connecting rod along the axial direction; wherein the composite machining spindle mechanism has: a first working state: the connecting rod is in a first axial position, the cutter protrudes from the end of the rotating rod to perform a cutting operation, and the grinding disc synchronously grinds the newly cut surface; a second working state: the connecting rod moves to a second axial position, at least one of the grinding heads moves to the outside of the cutter, and the rotating rod drives the grinding head to rotate to grind the inner and outer edges of the steel pipe end.

[0007] Furthermore, the connection structure of the modular rack includes: insert rods fixed to the left and right sides of the bracket, and insertion holes provided on the first main body and the second main body and cooperating with the insert rods, wherein the insert rods are locked in the insertion holes by inserting fasteners into the main body.

[0008] Furthermore, the conveying and clamping mechanism includes: a linear drive module disposed on the first main body; a sliding seat driven by the linear drive module and equipped with a first clamp; a second clamp disposed on the second main body; and a discharge bracket disposed on the output side of the second clamp, wherein the discharge bracket is provided with a conveying roller assembly.

[0009] Furthermore, the ring motion mechanism also includes: a first drive motor fixed on the bracket; a first drive gear connected to the output shaft of the first drive motor; and an annular toothed groove on the outer circumference of the rotating ring, wherein the first drive gear meshes with the annular toothed groove to drive the rotating ring to rotate within the bracket.

[0010] Furthermore, the ring motion mechanism also includes: a limiting tube fixedly disposed in the inner ring of the rotating ring, and the displacement rod slidably disposed in the limiting tube; the limiting tube is fixedly provided with a linear driver, the output end of the linear driver is connected to the displacement rod, and is used to drive the displacement rod to move radially along the rotating ring.

[0011] Furthermore, the cutting unit also includes: a driven gear ring fixed to the rotating rod; a second drive motor fixed to the displacement rod; the output shaft of the second drive motor is provided with a second drive gear, and the second drive gear is connected to the driven gear ring through a transmission component to transmit power to the rotating rod.

[0012] Furthermore, the cutting unit also includes a quick-change blade assembly, which includes: a mounting plate connected to the end of the rotating rod, with the cutter sleeved on the outside of the mounting plate; and a fixing plate detachably connected to the mounting plate for clamping and fixing the cutter.

[0013] Furthermore, the grinding unit also includes a telescopic drive mechanism, comprising: a guide member vertically fixed to the displacement rod; a sliding plate between the guide member and the connecting rod, one end of the sliding plate being slidably connected to the guide member along the axial direction of the guide member, and the other end being rotatably connected to the connecting rod; an elastic member in a pre-compressed state being provided between the sliding plate and the displacement rod, one end of the elastic member abutting against the displacement rod, and the other end abutting against the sliding plate; a third drive motor is mounted on the displacement rod on the same side as the sliding plate, which is connected to the sliding plate or the connecting rod via a traction rope to overcome the elastic force of the elastic member and drive the connecting rod to move to the second axial position.

[0014] Furthermore, in the telescopic drive mechanism: the output shaft of the third drive motor is connected to a take-up reel; one end of the traction rope is wound around the take-up reel, and the other end is connected to the slide plate.

[0015] To solve the above-mentioned technical problems, the present invention also provides a seamless steel pipe processing method using the above-mentioned multi-functional integrated processing device for seamless steel pipes, comprising the following steps: S1: Loading and positioning: The steel pipe is clamped and transported by a conveying and clamping mechanism, so that the part of the steel pipe to be processed is positioned in the processing area of ​​the composite processing spindle mechanism; S2: Cutting and simultaneous grinding of the cut surface: The composite processing spindle mechanism is controlled to be in the first working state, and the cutter completes the annular cutting under the combined motion of rotation and rotation around the axis of the steel pipe, while the grinding disc grinds the newly cut surface; S3: Grinding of the inner and outer edges of the port: After the cutting is completed, the two sections of steel pipe are controlled to move away from each other along the axial direction to form a grinding gap; The composite processing spindle mechanism is controlled to switch to the second working state, and the grinding head is driven to rotate and contact the inner and outer edges of the steel pipe port for grinding or chamfering; S4: Unloading: The steel pipe is released and the processed pipe section is output.

[0016] The seamless steel pipe multifunctional integrated processing device and its processing method provided by this invention, compared with the prior art, integrates the conveying and clamping mechanism and the composite processing spindle mechanism including the cutting unit and the grinding unit into the same processing device through a modular frame. The structure is compact and can continuously complete the cutting of steel pipe, the grinding of the cut surface and the grinding of the inner and outer edges of the cut steel pipe end in one clamping. It can effectively improve the integration of steel pipe processing steps, reduce material turnover and waiting time between steps, reduce the accumulation of errors caused by multiple clamping, effectively improve the production efficiency of steel pipe processing and ensure the stability and consistency of the processing quality of the cut end. Through the modular and assembled setting of the first main body, the second main body and the support, it is easy to quickly disassemble, transport and reassemble on site, which improves the flexibility and practicality of production and helps to reduce the difficulty of equipment deployment and maintenance costs. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0018] Figure 1 This is a three-dimensional structural diagram of the multi-functional integrated processing device for seamless steel pipes in an embodiment of the present invention;

[0019] Figure 2 This is an exploded disassembly diagram of the multi-functional integrated processing device for seamless steel pipes in an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram showing the discharge port position of the multi-functional integrated processing device for seamless steel pipes in an embodiment of the present invention;

[0021] Figure 4 This is a partial cross-sectional view of the bracket in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the connection structure between the rotating ring, the displacement rod, and the composite machining spindle mechanism in an embodiment of the present invention;

[0023] Figure 6 For the appendix Figure 5 A partially enlarged view of the mid-displacement rod and the composite machining spindle mechanism;

[0024] Figure 7 This is a schematic diagram of the connection structure of the displacement rod and internal transmission components in an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the explosive decomposition of the cutting component in an embodiment of the present invention;

[0026] Figure 9This is a schematic diagram of the connection structure between the rotating rod and the connecting rod in an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of the overall structure of the grinding unit in an embodiment of the present invention;

[0028] Figure 11 This is a partial structural diagram of the grinding unit in an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached drawings: 10. Locking hole; 101. First body; 102. Second body; 11. Bracket; 111. Fixing frame; 12. Insert rod; 121. Insertion hole; 13. Fastener; 14. Discharge port; 15. Collection box; 20. Conveying and clamping mechanism; 21. Linear drive module; 22. Sliding seat; 23. First clamp; 24. Second clamp; 25. Discharge bracket; 26. Conveying roller group; 30. Circular motion mechanism; 31. Rotary ring; 32. Toothed groove; 33. First drive motor; 34. First drive gear; 35. Limiting tube; 36. Displacement rod; 37. Linear actuator; 40. Cutting unit; 41. Rotating rod; 42. Driven gear ring; 43. Second drive motor; 44. Second drive gear; 45. Transmission component; 46. Mounting plate; 47. Cutter; 48. Fixing plate; 49. Grinding plate; 50. Grinding unit; 51. Linkage rod; 52. Grinding head; 53. Guide component; 54. Slide plate; 55. Elastic component; 56. Third drive motor; 57. Take-up reel; 58. Traction rope. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the various embodiments of this invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this invention to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0031] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0032] like Figure 1-7As shown, one embodiment of the present invention relates to a multi-functional integrated processing device for seamless steel pipes, including a modular frame comprising a first main body 101 and a second main body 102 arranged opposite to each other, and a support 11 detachably connected between the two; a conveying and clamping mechanism 20 is provided on the first main body 101 and the second main body 102 for axial feeding, fixing and output of the steel pipe; a ring motion mechanism 30, which is disposed within the support 11, includes a rotating ring 31 that can rotate around the axis of the steel pipe, and a displacement rod 36 driven by the rotating ring 31 and capable of radial feeding relative to the rotating ring 31; a composite processing spindle mechanism, which is installed at the end of the displacement rod 36, includes: a cutting unit 40, which has a rotating rod 41 that can rotate at high speed around its own axis and A cutter 47 is provided at its end, and a grinding disc 49 is fixedly provided on at least one end face of the cutter 47; a grinding unit 50 includes a connecting rod 51 axially slidably disposed within the rotating rod 41, and grinding heads 52 respectively fixed to both ends of the connecting rod 51 axially; wherein, the composite processing spindle mechanism has: a first working state: the connecting rod 51 is in a first axial position, the cutter 47 protrudes from the end of the rotating rod 41 to perform a cutting operation, and the grinding disc 49 synchronously grinds the newly cut surface; a second working state: the connecting rod 51 moves to a second axial position, at least one of the grinding heads 52 moves to the outside of the cutter 47, and the rotating rod 41 drives the grinding head 52 to rotate to grind the inner and outer edges of the steel pipe end. By modularizing the main body and support 11, the grinding unit 50 and the cutting unit 40 are integrated into the same composite machining spindle. By setting the grinding disc 49 on the end face of the cutter 47, the integrated operation of cutting, grinding of the cutting surface, and grinding of the inner and outer edges of the cutting port can be achieved in one clamping. This can effectively reduce material turnover and waiting time between processes, reduce the accumulation of errors caused by multiple clamping, effectively improve the production efficiency of steel pipe processing, and ensure the stability and consistency of the processing quality of the cutting port.

[0033] like Figure 1-3As shown, one embodiment relates to a multi-functional integrated processing device for seamless steel pipes, including a modular frame comprising a first main body 101 and a second main body 102 arranged opposite each other, and a support 11 detachably connected between the two. The detachable connection structure includes horizontal insertion rods 12 fixed to the left and right sides of the support 11. The first main body 101 and the second main body 102 have insertion holes 121 at their ends facing the support 11, matching the insertion rods 12. A locking hole 10 corresponding to the insertion hole 121 is provided on the outer side of the main body; the locking hole 10 is a through hole penetrating the outer side of the main body to the inner wall of the insertion hole 121. During assembly, the two main bodies are pushed towards the support 11, causing the insertion rods 12 to be inserted into the insertion holes 121. Then, fasteners 13 are screwed into the locking holes 10 from the outer side of the main body, so that their ends press against or penetrate the insertion rods 12, achieving a stable locking of the frame. The frame can be quickly disassembled by unscrewing the fasteners 13 from the locking holes 10. The first body 101 and the second body 102 are provided with an inclined discharge port 14 with the opening facing downwards, which is used to discharge waste materials during the seamless steel pipe processing. A collection box 15 is provided at the lower opening of the discharge port 14 for recycling metal shavings and coolant generated during cutting and grinding.

[0034] like Figure 1-3 As shown, one embodiment relates to a multi-functional integrated processing device for seamless steel pipes, including a modular frame comprising a first main body 101 and a second main body 102 arranged opposite to each other, and a support 11 detachably connected between the two. A conveying and clamping mechanism 20 is provided on the first main body 101 and the second main body 102 for axial feeding, fixing, and output of the steel pipe. The conveying and clamping mechanism 20 includes a linear drive module 21 disposed on the first main body 101. The linear drive module 21 consists of two sets of high-precision linear electric guide rails mounted parallel to each other on the upper surface of the first main body 101, with a sliding seat 22 slidably engaged with the guide rails. A first clamp 23 is mounted on the sliding seat 22 for clamping the steel pipe and controlling its feed. A second clamp 24 is provided on the second main body 102, and the second clamp 24 is coaxially arranged with the first clamp 23 for clamping the end of the steel pipe. A discharge bracket 25 is provided on the output side of the second clamp 24, i.e., the side away from the first clamp 23, for carrying and outputting the processed seamless steel pipe. Preferably, the discharge bracket 25 is U-shaped, with a conveyor roller group 26 with a rubber coating installed at its inner bottom. It consists of multiple sets of rotating rollers and is used to convey the processed steel pipe section. The rubber coating helps to increase the friction between the steel pipe and the rotating rollers and reduce the impact damage on the surface of the steel pipe, which is conducive to the stable transmission of the steel pipe.

[0035] like Figure 4As shown, in one embodiment, a multi-functional integrated processing device for seamless steel pipes includes a modular frame comprising a first main body 101 and a second main body 102 arranged opposite to each other, and a support 11 detachably connected between the two. The support 11 is provided with an annular fixing frame 111, and an annular motion mechanism 30 is coaxially and movably connected to the inner ring of the annular fixing frame 111. This mechanism includes a rotating ring 31 capable of rotating around the axis of the steel pipe, and a displacement rod 36 driven by the rotating ring 31 and capable of radial feed relative to it. The rotating ring 31 is connected by a roller... The sub-bearing is rotatably connected to the annular fixed frame 111, and the outer circumference of the rotating ring 31 is machined with toothed grooves 32. A first drive motor 33 is also fixedly mounted on the bracket 11 on one side of the rotating ring 31. The output shaft of the first drive motor 33 is connected to a first drive gear 34, which meshes with the toothed grooves 32 of the rotating ring 31. Under the forward and reverse drive of the first drive motor 33, the rotating ring 31 is driven to reciprocate around its central axis through the meshing transmission between the first drive gear 34 and the toothed grooves 32, and the rotation angle of the rotating ring 31 can be precisely controlled. Figure 5-6 As shown, in one example, the inner ring of the rotating ring 31 is fixedly provided with a limiting tube 35, and the displacement rod 36 is slidably disposed in the limiting tube 35. A linear actuator 37 for driving the displacement rod 36 to move linearly along the axial direction of the limiting tube 35 is fixedly provided in the limiting tube 35. The output end of the actuator is fixedly connected to one end of the displacement rod 36. Under the drive of the linear actuator 37, the displacement rod 36 is controlled to move radially along the rotating ring 31.

[0036] like Figure 7-8As shown, in one embodiment, a multi-functional integrated processing device for seamless steel pipes is disclosed, including a modular frame comprising a first main body 101 and a second main body 102 arranged opposite to each other, and a support 11 detachably connected between the two; the support 11 is provided with a ring motion mechanism 30, and the ring 31 of the ring motion mechanism 30 is provided with a displacement rod 36 that can move radially relative to the ring 31. The end of the displacement rod 36 is provided with a composite processing spindle mechanism, including a cutting unit 40 and a grinding unit 50. The cutting unit 40 includes a rotating rod 41 that can rotate at high speed around its own axis and a cutter 47 disposed at one end of the rotating rod 41. A grinding disc 49 is fixedly disposed on at least one end face of the cutter 47. In one example, the lower end of the displacement rod 36 is rotatably connected to the rotating rod 41. The axis of the displacement rod 36 is perpendicular to the axis of the rotating rod 41. The end of the rotating rod 41 extends beyond the end face of the displacement rod 36 along its axis. A driven gear ring 42 is fixedly provided on the outer periphery of the extended part of the rotating rod 41. A second drive motor 43 is installed on the upper part of the displacement rod 36. The second drive gear 44 on its output shaft is connected to the driven gear ring 42 through a transmission component 45 to form a transmission system. The power of the second drive motor 43 is transmitted to the driven gear ring 42 through the driven component, causing the rotating rod 41 to rotate at high speed. A cutter head assembly is provided at one end of the rotating rod 41 where the driven gear ring 42 is located. The cutter head assembly includes a disc-shaped cutter 47 sleeved on the outside of the mounting plate 46 and connected to a mounting plate 46 via a flange. The disc-shaped cutter 47 has a keyway in the center that mates with the key on the outer edge of the mounting plate 46 to achieve circumferential positioning. A fixed plate 48 clamps and fixes the cutter 47 between the fixed plate 48 and the mounting plate 46 through a detachable connection. The two end faces of the cutter 47 are respectively inlaid with annular grinding discs 49. When the cutter 47 rotates to cut the steel pipe, the grinding discs 49 rotate together to grind the two cut surfaces that have just been formed. This helps to save the time of separate grinding operations and improve efficiency.

[0037] like Figure 9-11As shown, one embodiment relates to a multi-functional integrated processing device for seamless steel pipes. Its grinding unit 50 includes a connecting rod 51 axially slidably disposed within a rotating rod 41, and grinding heads 52 respectively fixed to both axial ends of the connecting rod 51. The rotating rod 41 has a hexagonal inner hole machined through it axially. The cross-section of the connecting rod 51 matches the hexagonal inner hole, thus allowing it to slide within the rotating rod 41. Both are circumferentially fixed, meaning the connecting rod 51 can rotate with the rotating rod 41 and also slide axially relative to it. Grinding heads 52 are detachably and fixedly connected at both axial ends of the connecting rod 51 for grinding the inner or outer edge of the steel pipe opening. The axial displacement of the linkage 51 relative to the rotating rod 41 is achieved by a telescopic drive mechanism. This mechanism includes a guide 53 fixedly mounted on a vertical displacement rod 36. The guide 53 extends horizontally away from the cutter 47 and is parallel to the linkage 51. A sliding plate 54 is provided between the linkage 51 and the guide 53. One end of the sliding plate 54 is slidably connected to the guide 53 along its axial direction, and the other end is rotatably connected to the linkage 51. The sliding plate 54 cannot be displaced relative to the linkage 51 along its axial direction. The rotatable connection between the sliding plate 54 and the linkage 51 can be achieved using bearings, which will not be elaborated further here. An elastic element 55 in a pre-compressed state is provided between the slide plate 54 and the displacement rod 36. One end of the elastic element 55 abuts against the displacement rod 36, and the other end abuts against the slide plate 54. In the first working state, under the action of the restoring elastic force of the elastic element 55, the slide plate 54 is driven to keep moving away from the displacement rod 36, and the connecting rod 51 and its connected grinding head 52 are driven to retract into the rotating rod 41 to avoid affecting the cutting operation. The corresponding connecting rod 51 is in the first axial position. A third drive motor 56 is installed on the same side of the displacement rod 36 and the slide plate 54. It is connected to the slide plate 54 or the connecting rod 51 through a traction rope 58 to overcome the elastic force of the elastic element 55 and drive the connecting rod 51 to move to the second axial position. In one example, the output shaft of the third drive motor 56 is equipped with a take-up reel 57. One end of the traction rope 58 is wound around the take-up reel 57, and the other end passes through the inner hole of the guide member 53 and is fixedly connected to the slide plate 54. When it is necessary to switch from the first working state to the second working state, the third drive motor 56 drives the take-up reel 57 to rotate, tightens the traction rope 58, and pulls the slide plate 54 towards the displacement rod 36 against the elastic force of the elastic member 55. This causes the connecting rod 51 to slide along the inner hole of the rotating rod 41 until the grinding head 52 at one end is fully extended to the outside of the cutter 47, while the grinding head 52 at the other end remains on the side of the slide plate 54 away from the displacement rod 36, so that both grinding heads 52 are in an effective working position.

[0038] One embodiment relates to a seamless steel pipe processing method using the aforementioned multi-functional integrated seamless steel pipe processing device, comprising the following steps:

[0039] S1: Loading and Positioning: The steel pipe is clamped and transported by the conveying and clamping mechanism 20, positioning the part of the steel pipe to be processed in the processing area of ​​the composite processing spindle mechanism; the long steel pipe is placed on the side of the first main body 101 and clamped by the first clamp 23. The linear motor is started, driving the sliding seat 22 to move to the right, passing the steel pipe through the processing area in the middle of the support 11 until the end of the steel pipe extends into the second clamp 24 and is clamped, so that the position to be cut on the steel pipe is precisely aligned with the vertical projection direction of the cutter 47.

[0040] S2: Simultaneous Cutting and Grinding of Cut Surface: The composite processing spindle mechanism is controlled to be in the first working state. The cutter 47 completes a circular cut under the combined motion of rotation and revolution around the axis of the steel pipe. At the same time, the grinding disc 49 grinds the cut surface. The linear driver 37 pushes the displacement rod 36 down, that is, the displacement rod 36 moves radially towards the axis of the rotating ring 31, so that the rotating cutter 47 contacts the surface of the steel pipe. At the same time, the first drive motor 33 starts, driving the rotating ring 31 to drive the cutter 47 to make a circular motion along the steel pipe. The second drive motor 43 drives the rotating rod 41 and the cutter 47 to rotate synchronously. Under the combined motion of rotation and revolution, the cutter 47 cuts the steel pipe like a "circular cut". In this process, by controlling the distance of the radial displacement of the displacement rod 36 along the rotating ring 31, the grinding discs 49 on both sides of the cutter 47 can grind the newly cut surface of the steel pipe synchronously.

[0041] S3: Grinding the inner and outer edges of the port: After cutting, control the two steel pipe sections to move away from each other along the axial direction to form a grinding gap; switch the composite processing spindle mechanism to the second working state, drive the grinding head 52 to rotate and contact the inner and outer edges of the steel pipe port for grinding or chamfering; after cutting, the linear drive module 21 drives the sliding seat 22 to move, causing the two steel pipe sections to move in opposite directions, that is, increase the gap between the cuts of the two steel pipe sections, so that a gap matching the width of the two grinding heads 52 is generated at the cuts of the two steel pipe sections; drive the displacement rod 36 to move through the linear driver 37, drive the connecting rod 51 to the second axial position through the third drive motor 56, fine adjust the gap between the cuts of the two steel pipe sections through the linear drive module 21, so that the grinding head 52 abuts against the inner or outer edge of the pipe opening, and drive the rotating rod 41 and the grinding head 52 to rotate synchronously through the second drive motor 43 to grind or chamfer the inner and outer edges of the port.

[0042] S4: Unloading: Release the steel pipe and output the processed pipe section; the second clamp 24 is released, and the conveying roller group 26 on the second main body 102 is started to convey the processed steel pipe through the conveying roller group 26 for unloading.

[0043] The seamless steel pipe multifunctional integrated processing device and its processing method provided by this invention integrates the conveying and clamping mechanism and the composite processing spindle mechanism including the cutting unit and the grinding unit into the same processing device through a modular frame. The structure is compact and can continuously complete the cutting of steel pipe, the grinding of the cut surface and the grinding of the inner and outer edges of the cut steel pipe end in one clamping. It can effectively improve the integration of steel pipe processing steps, reduce material turnover and waiting time between steps, reduce the accumulation of errors caused by multiple clamping, effectively improve the production efficiency of steel pipe processing and ensure the stability and consistency of the processing quality of the cut end. Through the modular and assembled setting of the first main body, the second main body and the support, it is easy to quickly disassemble, transport and reassemble on site, improve the flexibility and practicality of production, and help reduce the difficulty of equipment deployment and maintenance costs.

[0044] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be defined by the claims.

Claims

1. A multi-functional integrated processing device for seamless steel pipes, characterized in that, include: The modular rack includes a first main body (101) and a second main body (102) arranged opposite to each other, and a bracket (11) detachably connected between the two; A conveying and clamping mechanism (20), which is mounted on the modular frame, is used for axial feeding, fixing and output of steel pipes; The conveying and clamping mechanism (20) includes: a linear drive module (21) disposed on the first body (101); a sliding seat (22) driven by the linear drive module (21) and equipped with a first clamp (23); a second clamp (24) disposed on the second body (102); and a discharge bracket (25) disposed on the output side of the second clamp (24), wherein the discharge bracket (25) is provided with a conveying roller group (26); A ring motion mechanism (30), disposed within the bracket (11), includes a rotating ring (31) capable of rotating around the axis of a steel pipe, and a displacement rod (36) driven by the rotating ring (31) and capable of radial feed relative to it; a first drive motor (33) fixed on the bracket (11); and a first drive gear (34) connected to the output shaft of the first drive motor (33); the outer circumference of the rotating ring (31) is provided with an annular tooth groove (32), and the first drive gear (34) and... The annular toothed groove (32) engages to drive the rotating ring (31) to rotate within the bracket (11); a limiting tube (35) is fixedly disposed within the inner ring of the rotating ring (31), and the displacement rod (36) is slidably disposed within the limiting tube (35); a linear actuator (37) is fixedly disposed within the limiting tube (35), and the output end of the linear actuator (37) is connected to the displacement rod (36) to drive the displacement rod (36) to move radially along the rotating ring (31); A composite machining spindle mechanism, mounted at the end of the displacement rod (36), includes: The cutting unit (40) has a rotating rod (41) that can rotate at high speed around its own axis and a cutter (47) at its end, wherein a grinding disc (49) is fixed on at least one end face of the cutter (47); The grinding unit (50) includes a connecting rod (51) which is axially slidably disposed in the rotating rod (41), and grinding heads (52) respectively fixed to the two ends of the connecting rod (51) in the axial direction. The composite machining spindle mechanism has the following features: First working state: The connecting rod (51) is in the first axial position, the cutter (47) protrudes from the end of the rotating rod (41) to perform cutting operations, and the grinding disc (49) synchronously grinds the newly cut surface; Second working state: The linkage rod (51) moves to the second axial position, at least one of the grinding heads (52) moves to the outside of the cutter (47), and the rotating rod (41) drives the grinding head (52) to rotate to grind the inner and outer edges of the steel pipe port.

2. The multi-functional integrated processing device for seamless steel pipes according to claim 1, characterized in that, The connection structure of the modular rack includes: a plug rod (12) fixed on the left and right sides of the bracket (11), and a socket (121) provided on the first body (101) and the second body (102) and cooperating with the plug rod (12). The plug rod (12) is locked in the socket (121) by inserting a fastener (13) into the body.

3. The multi-functional integrated processing device for seamless steel pipes according to claim 1, characterized in that, The cutting unit (40) further includes: a driven gear ring (42) fixed on the rotating rod (41); a second drive motor (43) fixed on the displacement rod (36); the output shaft of the second drive motor (43) is provided with a second drive gear (44), and the second drive gear (44) is connected to the driven gear ring (42) through a transmission member (45) to transmit power to the rotating rod (41).

4. The multi-functional integrated processing device for seamless steel pipes according to claim 3, characterized in that, The cutting unit (40) further includes a quick-change blade assembly, which includes: a mounting plate (46) connected to the end of the rotating rod (41), the cutter (47) being sleeved on the outside of the mounting plate (46); and a fixing plate (48) detachably connected to the mounting plate (46) for clamping and fixing the cutter (47).

5. The multi-functional integrated processing device for seamless steel pipes according to claim 1, characterized in that, The grinding unit (50) further includes a telescopic drive mechanism, which includes: a guide member (53) vertically fixed on the displacement rod (36); a sliding plate (54) is provided between the guide member (53) and the connecting rod (51), one end of the sliding plate (54) is slidably connected to the guide member (53) along the axial direction of the guide member (53), and the other end is rotatably connected to the connecting rod (51); an elastic member (55) in a pre-compressed state is provided between the sliding plate (54) and the displacement rod (36), one end of the elastic member (55) abuts against the displacement rod (36), and the other end abuts against the sliding plate (54); a third drive motor (56) is installed on the displacement rod (36) on the same side as the sliding plate (54), which is connected to the sliding plate (54) or the connecting rod (51) through a traction rope (58) to overcome the elastic force of the elastic member (55) and drive the connecting rod (51) to move to the second axial position.

6. The multi-functional integrated processing device for seamless steel pipes according to claim 5, characterized in that, In the telescopic drive mechanism: The output shaft of the third drive motor (56) is connected to a take-up reel (57); one end of the traction rope (58) is wound around the take-up reel (57), and the other end is connected to the slide plate (54).

7. A method for processing seamless steel pipes using the multi-functional integrated processing device for seamless steel pipes according to any one of claims 1-6, characterized in that, Includes the following steps: S1: Loading and positioning: The steel pipe is clamped and transported by the conveying and clamping mechanism (20) so that the part of the steel pipe to be processed is positioned in the processing area of ​​the composite processing spindle mechanism; S2: Cutting and cutting surface grinding simultaneously: The composite machining spindle mechanism is controlled to be in the first working state. The cutter (47) completes the ring cutting under the combined rotation and rotation around the axis of the steel pipe. At the same time, the grinding disc (49) grinds the newly cut surface. S3: Grinding the inner and outer edges of the port: After cutting, control the two sections of steel pipe to move away from each other along the axial direction to form a grinding gap; control the composite processing spindle mechanism to switch to the second working state, drive the grinding head (52) to rotate and contact the inner and outer edges of the steel pipe port for grinding or chamfering; S4: Unloading: Loosen the steel pipe and output the processed pipe section.

Images