A straightening apparatus for seamless steel pipe production and a straightening method thereof

Abstract

The present application relates to the technical field of metal pipe straightening, in particular to a seamless steel pipe production straightening equipment and method thereof, which comprises a base, a support assembly, a sliding base, and a cleaning, detecting and straightening assembly. The support assembly can adjust the interval to adapt to different steel pipes. The sliding base drives each assembly to move along the steel pipe. The cleaning assembly cleans the outer wall of the steel pipe by rotating the ring frame and cooperating with airflow blowing and negative pressure suction. The detecting assembly uses an infrared sensor to monitor the bending degree in real time. The straightening assembly adjusts the angle according to the detection data and dynamically controls the pressure combined with the temperature sensor to accurately straighten. The method comprises parameter adjustment, steel pipe positioning, assembly movement and intelligent straightening steps. The equipment realizes automatic detection and straightening of seamless steel pipes, improves straightening accuracy and efficiency, adapts to high-temperature working conditions, reduces secondary deformation, is suitable for different specifications of steel pipes, and has the advantages of high precision, intelligence, high efficiency and energy saving.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal pipe correction, in particular to a correction equipment for seamless steel pipe production and a correction method thereof. BACKGROUND

[0002] As a key basic material in the industrial field, the forming precision of seamless steel pipe directly affects the assembly and use performance of subsequent equipment. In the production process of the seamless steel pipe, the steel pipe often has defects such as bending due to high-temperature plastic deformation, roll wear, uneven tension and the like, and needs to be repaired in precision by a correction equipment.

[0003] The patent with the publication number CN114226500B proposes a large-scale seamless steel pipe correction equipment, which comprises a grounding base, the upper surface of the grounding base is fixedly connected with a rotating shaft seat, the same rotating shaft is rotatably connected between the front and rear rotating shaft seats, the surface of the rotating shaft is fixedly connected with a driving bottom roller, the two ends of the rotating shaft are connected with a rotating disc through bearings, the rotating disc is fixedly connected with a right-angle block through a connecting block, the front surface of the grounding base is provided with a driving mechanism for driving the rotating shaft to rotate, and the right-angle block is composed of a left plate and a right plate. The equipment drives the driving bottom roller to rotate by using a driving motor, a chain wheel and a chain, adjusts the distance between the two parallel adjusting plates and the left plate and the right plate by cooperating the adjusting screw with the adjusting nut, corrects the seamless steel pipe from both sides of the seamless steel pipe, adjusts the distance between the two sliding seats to adapt to seamless steel pipes of different diameters, rotates the height-adjusting screw, and fixes the seamless steel pipe by the two correction rollers from both ends of the top of the seamless steel pipe. When the seamless steel pipe rotates, the position of the seamless steel pipe is positioned and corrected from multiple positions.

[0004] The above structure, when in use, uses a mechanical roller for passive correction. This mode has significant limitations. In high-temperature working conditions, the correction force output by the equipment is difficult to match the material properties of the seamless steel pipe, which easily causes secondary deformation, affecting the correction accuracy and product quality.

[0005] And the above structure does not set a deformation detection sensor, and the position of the correction roller depends on manual or preset parameter adjustment, which cannot identify local defects (such as some segment ovality out of tolerance and some position axis bending) of the seamless steel pipe in real time, resulting in "uniform correction of the whole pipe section", which is easy to cause over-correction or insufficient correction. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a correction equipment for seamless steel pipe production and a correction method thereof.

[0007] To achieve the above object, the present application provides the following technical scheme: a correcting equipment for seamless steel pipe production, comprising a base, two support assemblies are symmetrically arranged at the two ends of the base, the support assemblies are in sliding connection with the base, the support assembly comprises a support plate, a support rod is arranged at the rear end of the support plate, a first hydraulic cylinder is arranged at the top end of the support rod, a limiting roller is arranged at the output end of the first hydraulic cylinder, two support rollers are symmetrically arranged at the upper end of the support plate;

[0008] A hollow groove is arranged on the base, a sliding base is slidably arranged in the hollow groove, a cleaning assembly, a detection assembly and a correcting assembly are arranged at the upper end of the sliding base;

[0009] The cleaning assembly comprises a second annular frame and an annular air deflector, a first adapter pipe is arranged on one side of the second annular frame, a first cavity is arranged in the second annular frame, an annular air deflector is arranged on the inner ring of the second annular frame, and a plurality of air outlet pipes in communication with the first cavity are arranged on the annular air deflector;

[0010] The detection assembly comprises a first annular frame, a plurality of infrared distance sensors are fixedly arranged on the inner wall of the first annular frame;

[0011] The correcting assembly comprises a third annular frame, a plurality of second hydraulic cylinders are fixedly arranged on the outer wall of the third annular frame, a correcting block is arranged at the output end of the second hydraulic cylinder and located in the inner ring of the third annular frame, a plurality of infrared temperature sensors are arranged on the inner wall of the third annular frame, the infrared temperature sensors are located on the two sides of the correcting block, and a first gear ring is arranged on the circumferential side of the third annular frame;

[0012] The first annular frame and the second annular frame are fixedly arranged at the upper end of the sliding base, the third annular frame is located between the first annular frame and the second annular frame and is in rotary connection with the first annular frame and the second annular frame, a fourth motor is arranged at the upper end of the second annular frame, and a first gear wheel meshing with the first gear ring is arranged at the output end of the fourth motor;

[0013] The third motor, the fourth motor and the second hydraulic cylinder are respectively connected with the infrared distance sensor through an electric signal, and the infrared temperature sensor is connected with the second hydraulic cylinder through an electric signal.

[0014] In order to facilitate the adjustment of the parameters of the support assembly, the base is fixedly provided with a first motor at one end, the output end of the first motor is provided with a first rotating shaft located below the base, two first screws with opposite threads are symmetrically arranged at the two ends of the first rotating shaft, the lower end of the support plate is provided with a base frame, the base frame is located on the two sides of the base, the inner side of the base frame is provided with a U-shaped limiting frame, the two sides of the base are inserted into the U-shaped limiting frame, the U-shaped limiting frame is in sliding connection with the base, the lower end of the base frame is provided with a first sliding block penetrated by the first screw, and the first sliding block is in rolling screw transmission connection with the first screw;

[0015] The upper end of the support plate is symmetrically provided with two U-shaped support frames and a sliding groove, the lower end of the U-shaped support frame is provided with a second sliding block in sliding connection with the sliding groove, one end of the support plate is provided with a second motor, the output end of the second motor is provided with a second rotating shaft, two second lead screws with reverse threads are symmetrically arranged on the second rotating shaft, the two second lead screws respectively pass through the two second sliding blocks and are in rolling screw transmission connection with the second sliding blocks.

[0016] The support roller is mounted at the upper end of the U-shaped support frame.

[0017] Further, the upper end of the support plate is symmetrically provided with two guide rods penetrating the U-shaped support frame, and the U-shaped support frame is in sliding connection with the guide rods.

[0018] In order to improve the cleaning effect of the cleaning assembly, the inner ring of the second ring-shaped frame is symmetrically provided with two mounting grooves, the inner ring of the mounting groove is provided with a sealing bearing, the outer ring of the sealing bearing is in interference fit with the mounting groove, the inner ring of the sealing bearing is in interference fit with the annular air deflector, the circumferential side of the annular air deflector is provided with a second gear ring, the bottom of the second ring-shaped frame is fixedly provided with a fifth motor, the output end of the fifth motor is provided with a second gear in meshing connection with the second gear ring.

[0019] The cleaning assembly further comprises a dust suction ring-shaped frame, one side of the dust suction ring-shaped frame is provided with a second adapter pipe, the dust suction ring-shaped frame is fixed to one side of the second ring-shaped frame through a support rod, the inner ring of the dust suction ring-shaped frame is provided with a magnetic suction ring-shaped plate, and a plurality of dust suction pipes in communication with the dust suction ring-shaped frame are arranged on the magnetic suction ring-shaped plate.

[0020] Further, one end of the base is provided with a first motor, the output end of the first motor is provided with a third lead screw penetrating the sliding base, and the third lead screw is in rolling screw transmission connection with the sliding base.

[0021] In order to improve the stability of the third ring-shaped frame during rotation, the side close to the third ring-shaped frame of the first ring-shaped frame and the second ring-shaped frame is provided with an annular groove, the two sides of the third ring-shaped frame are provided with annular protrusions inserted into the annular grooves, a positioning bearing is arranged at the inner wall of the annular groove, the outer ring of the positioning bearing is in interference fit with the inner wall of the annular groove, and the inner ring of the positioning bearing is in interference fit with the outer wall of the annular protrusion.

[0022] A correction method of a correction equipment for seamless steel pipe production, comprising the following steps:

[0023] Step 1: adjust the distance between the two U-shaped support frames and the distance between the two support plates according to the length and diameter of the seamless steel pipe;

[0024] Second step: place the seamless steel pipe on the plurality of supporting rollers, then start the first hydraulic cylinder to fix the two ends of the seamless steel pipe by the limiting rollers and the supporting rollers, at this time, the two ends of the seamless steel pipe are on the same axis, and at this time, the seamless steel pipe penetrates through the first ring-shaped frame, the third ring-shaped frame, the second ring-shaped frame and the dust absorption ring-shaped frame;

[0025] Third step: start the third motor to rotate the third screw rod, so that the sliding base moves along the third screw rod in the empty slot, so that the cleaning assembly, the detection assembly and the correction assembly move along the seamless steel pipe;

[0026] Fourth step: in the moving process of the sliding base, the cleaning assembly cleans the outer wall of the seamless steel pipe, the detection assembly detects the bending degree of the seamless steel pipe through the plurality of infrared distance sensors, and adjusts the rotation angle of the third ring-shaped frame according to the measured result to control the fourth motor, so that the correction block can correct the seamless steel pipe at the specified angle.

[0027] Further, the improvement of the present application has the following, start the first motor to rotate the first rotating shaft with the two first screw rods, so that the two first sliding blocks slide along the first screw rods, thereby adjusting the distance between the two supporting plates, start the second motor to rotate the second rotating shaft with the second screw rod, so that the two second sliding blocks slide along the two second screw rods, thereby adjusting the distance between the two U-shaped supporting frames.

[0028] Further, the improvement of the present application has the following, when the cleaning assembly is used, the first adapter pipe is connected with the external pulse blower through the conduit, and the second adapter pipe is connected with the external industrial dust collector through the conduit;

[0029] In the moving process of the cleaning assembly, the fifth motor is started, the annular air deflector is rotated in the inner ring of the second ring-shaped frame through the cooperation of the second gear and the second gear ring, the air outlet positions of the plurality of air outlet pipes are adjusted, the seamless steel pipe is cleaned more uniformly, the dust and impurities cleaned are entered into the dust absorption ring-shaped frame through the dust suction pipe, and then entered into the industrial dust collector through the second adapter pipe;

[0030] In the moving process of the detection assembly, the plurality of infrared distance sensors can detect the distance between itself and the outer wall of the seamless steel pipe at any time, when the distance changes, the correction assembly is moved to the point, then according to the measured result (the nearest position), the fourth motor is started, the first gear is rotated through the cooperation of the first gear ring with the third ring-shaped frame to rotate the specified angle, so that the correction assembly applies the correction force according to the specified angle;

[0031] In use, the infrared temperature sensor can measure the temperature at the correction position, and the operating parameters of the second hydraulic cylinder are controlled according to the temperature, so that the correction block extrudes and corrects the seamless steel pipe according to the specified pressure.

[0032] Compared with the prior art, the seamless steel pipe production correcting equipment and the correcting method thereof have the following beneficial effects:

[0033] Intelligent and accurate correction: through the cooperative monitoring of the infrared distance sensor and the infrared temperature sensor, the bending degree of the seamless steel pipe and the temperature data at the correction position are obtained in real time, the position, angle and pressure of the correction block are automatically adjusted by the system, the traditional "full pipe section unified correction" mode is abandoned, the problems of excessive correction or insufficient correction are effectively avoided, the correction accuracy is greatly improved, and the quality of the finished seamless steel pipe is significantly improved.

[0034] Self-adaptive high-temperature working condition: in view of the correction requirement of the seamless steel pipe in a high-temperature state after hot rolling, the equipment dynamically adjusts the output pressure of the second hydraulic cylinder according to the temperature data fed back by the infrared temperature sensor, so that the correction force is accurately matched with the material characteristics of the seamless steel pipe in the high-temperature state, the secondary deformation caused by improper correction force is reduced, the correction process is stable and reliable, and the scrap rate is reduced.

[0035] High-efficiency automatic cleaning: the cleaning assembly adopts the combination of pulse blowing and negative pressure dust collection, the fifth motor drives the annular air deflector to flexibly adjust the air outlet angle, and 360° dead angle-free cleaning of the outer wall of the seamless steel pipe is realized. Meanwhile, the magnetic annular plate enhances the adsorption capacity of metal scraps, compared with the traditional manual cleaning or single blowing mode, the cleaning efficiency is greatly improved, and the interference of impurity residues on the correction accuracy is avoided.

[0036] Flexible and adjustable support system: the support assemblies at both ends of the equipment are connected through a double-wire rod transmission structure, so that the distance between the support plates and the distance between the U-shaped support frames can be quickly and accurately adjusted, the correction requirements of seamless steel pipes with different lengths and diameters are met, the equipment debugging time is reduced, and the universality and production efficiency of the production line are improved. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a first perspective three-dimensional structure schematic view of the present application;

[0038] Figure 2 It is a second perspective three-dimensional structure schematic view of the present application;

[0039] Figure 3 It is a side view of the present application; Figure 2

[0040] Figure 4 It is a partial enlarged structure schematic view of A in the present application; Figure 1

[0041] Figure 5 It is a partial enlarged structure schematic view of B in the present application; Figure 2

[0042] Figure 6 ​​​It is the first perspective view of the split structure schematic diagram of the annular air deflector and the first annular frame in the application;

[0043] Figure 7 It is the second perspective view of the split structure schematic diagram of the annular air deflector and the first annular frame in the application;

[0044] Figure 8 It is the structure schematic diagram of the correction assembly in the application;

[0045] Figure 9 It is the cooperation structure schematic diagram of the second gear and the second gear ring in the application.

[0046] In the figure: 1, the base; 2, support plate; 3, chassis; 4, U-shaped limiting frame; 5, first motor; 6, first rotating shaft; 7, first screw; 8, first sliding block; 9, U-shaped support frame; 10, support roller; 11, guide rod; 12, sliding groove; 13, second sliding block; 14, second motor; 15, second rotating shaft; 16, second screw; 17, support rod; 18, first hydraulic cylinder; 19, limiting roller; 20, sliding base; 21, hollow groove; 22, third motor; 23, third screw; 24, first annular frame; 25, infrared distance sensor; 26, second annular frame; 27, third annular frame; 28, second hydraulic cylinder; 29, correction block; 30, annular protrusion; 31, infrared temperature sensor; 32, annular groove; 33, first gear ring; 34, first gear; 35, fourth motor; 36, first adapter pipe; 37, first cavity; 38, annular air deflector; 39, air outlet pipe; 40, second gear ring; 41, mounting groove; 42, fifth motor; 43, second gear; 44, dust absorption annular frame; 45, second adapter pipe; 46, magnetic absorption annular plate; 47, dust absorption pipe. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0048] Please refer to Figures 1-9 The correction equipment for seamless steel pipe production provided by the application comprises a base 1, two support assemblies are symmetrically arranged at the two ends of the base 1, the support assemblies are in sliding connection with the base 1, the support assembly comprises a support plate 2, a support rod 17 is arranged at the rear end of the support plate 2, a first hydraulic cylinder 18 is arranged at the top end of the support rod 17, a limiting roller 19 is arranged at the output end of the first hydraulic cylinder 18, and two support rollers 10 are symmetrically arranged at the upper end of the support plate 2.

[0049] The base 1 is provided with a hollow groove 21, the inside of the hollow groove 21 is slidably provided with a sliding base 20, the upper end of the sliding base 20 is provided with a cleaning assembly, a detection assembly and a correction assembly;

[0050] The cleaning assembly comprises a second annular frame 26 and an annular air deflector 38, one side of the second annular frame 26 is provided with a first adapter pipe 36, the inside of the second annular frame 26 is provided with a first cavity 37, the inner ring of the second annular frame 26 is provided with the annular air deflector 38, and the annular air deflector 38 is provided with a plurality of air outlet pipes 39 in communication with the first cavity 37;

[0051] The detection assembly comprises a first annular frame 24, a plurality of infrared distance sensors 25 are fixedly arranged on the inner wall of the first annular frame 24;

[0052] The correction assembly comprises a third annular frame 27, a plurality of second hydraulic cylinders 28 are fixedly arranged on the outer wall of the third annular frame 27, the output end of the second hydraulic cylinder 28 is provided with a correction block 29 located in the inner ring of the third annular frame 27, a plurality of infrared temperature sensors 31 are arranged on the inner wall of the third annular frame 27, the infrared temperature sensors 31 are located on both sides of the correction block 29, and the periphery of the third annular frame 27 is provided with a first gear ring 33;

[0053] The first annular frame 24 and the second annular frame 26 are fixedly arranged on the upper end of the sliding base 20, the third annular frame 27 is located between the first annular frame 24 and the second annular frame 26 and is rotationally connected with the first annular frame 24 and the second annular frame 26, the upper end of the second annular frame 26 is provided with a fourth motor 35, and the output end of the fourth motor 35 is provided with a first gear 34 engaged with the first gear ring 33;

[0054] The third motor 22, the fourth motor 35 and the second hydraulic cylinder 28 are respectively connected with the infrared distance sensor 25 through an electrical signal, and the infrared temperature sensor 31 is connected with the second hydraulic cylinder 28 through an electrical signal.

[0055] One end of the base 1 is fixedly provided with a first motor 5, the output end of the first motor 5 is provided with a first rotating shaft 6 located below the base 1, the two ends of the first rotating shaft 6 are symmetrically provided with two first lead screws 7 with opposite threads, the lower end of the supporting plate 2 is provided with a base frame 3, the base frame 3 is located on the two sides of the base 1, the inner side of the base frame 3 is provided with a U-shaped limiting frame 4, the two sides of the base 1 are inserted into the U-shaped limiting frame 4, and the U-shaped limiting frame 4 is slidably connected with the base 1, the lower end of the base frame 3 is provided with a first sliding block 8 penetrated by the first lead screw 7, and the first sliding block 8 is rollingly and spirally connected with the first lead screw 7;

[0056] The upper end of the support plate 2 is symmetrically provided with two U-shaped support frames and a sliding groove 12, the lower end of the U-shaped support frame is provided with a second sliding block 13 in sliding connection with the sliding groove 12, one end of the support plate 2 is provided with a second motor 14, the output end of the second motor 14 is provided with a second rotating shaft 15, the second rotating shaft 15 is symmetrically provided with two second screw rods 16 with reverse threads, the two second screw rods 16 respectively penetrate through the two second sliding blocks 13 and are in rolling screw transmission connection with the second sliding blocks 13.

[0057] The support roller 10 is installed at the upper end of the U-shaped support frame.

[0058] One end of the base 1 is provided with a first motor 5, the output end of the first motor 5 is provided with a third screw rod 23 penetrating through the sliding base 20, and the third screw rod 23 is in rolling screw transmission connection with the sliding base 20.

[0059] The first annular frame 24 and the second annular frame 26 are provided with annular grooves 32 on one side close to the third annular frame 27, the two sides of the third annular frame 27 are provided with annular protrusions 30 inserted into the annular grooves 32, the inner wall of the annular groove 32 is provided with a locating bearing, the outer ring of the locating bearing is in interference fit with the inner wall of the annular groove 32, and the inner ring of the locating bearing is in interference fit with the outer wall of the annular protrusion 30.

[0060] A correction method of a correction equipment for seamless steel pipe production, comprising the following steps:

[0061] Step 1: adjust the distance between the two U-shaped support frames and the distance between the two support plates 2 according to the length and diameter of the seamless steel pipe;

[0062] Step 2: place the seamless steel pipe on the plurality of support rollers 10, then start the first hydraulic cylinder 18 to fix the two ends of the seamless steel pipe by the limiting rollers 19 and the support rollers 10, at this time, the two ends of the seamless steel pipe are on the same axis, and at this time, the seamless steel pipe penetrates through the first annular frame 24, the third annular frame 27, the second annular frame 26 and the dust collection annular frame 44;

[0063] Step 3: start the third motor 22 to rotate the third screw rod 23, so that the sliding base 20 moves in the empty groove 21 along the third screw rod 23, so that the cleaning assembly, the detection assembly and the correction assembly move along the seamless steel pipe;

[0064] Step 4: in the process of moving the sliding base 20, the cleaning assembly cleans the outer wall of the seamless steel pipe, the detection assembly detects the bending degree of the seamless steel pipe through the plurality of infrared distance sensors 25, and adjusts the rotation angle of the third annular frame 27 according to the measured result to control the fourth motor 35, so that the correction block 29 can correct the seamless steel pipe at the specified angle.

[0065] Start the first motor 5, make the first rotating shaft 6 with two first lead screws 7 rotate, make two first sliding blocks 8 slide along the first lead screws 7, so as to adjust the distance between the two supporting plates 2, start the second motor 14, make the second rotating shaft 15 with the second lead screws 16 rotate, make two second sliding blocks 13 slide along the two second lead screws 16, so as to adjust the distance between the two U-shaped supporting frames.

[0066] The cleaning assembly is in use, the first adapter pipe 36 is docked with the external pulse fan through the conduit, the second adapter pipe 45 is docked with the external industrial dust collector through the conduit;

[0067] The cleaning assembly is in movement, start the fifth motor 42, through the cooperation of the second gear 43 and the second gear ring 40, make the annular air deflector 38 rotate in the inner ring of the second annular frame 26, adjust the air outlet position of the plurality of air outlet pipes 39, clean the seamless steel pipe wall more evenly, the cleaned dust and impurities will enter the dust collection annular frame 44 through the dust collection pipe 47, and then enter the industrial dust collector through the second adapter pipe 45;

[0068] The detection assembly is in movement, the plurality of infrared distance sensors 25 can detect the distance between itself and the seamless steel pipe wall at any time, when the distance changes, the correction assembly will move to this point, then according to the detected result (the nearest position), start the fourth motor 35, make the first gear 34 rotate through the cooperation of the first gear ring 33 with the third annular frame 27, make the correction assembly apply the specified correction force according to the specified angle;

[0069] The correction assembly is in use, the infrared temperature sensor 31 can measure the temperature of the correction position, according to the temperature control the operation parameters of the second hydraulic cylinder 28, make the correction block 29 extrude the seamless steel pipe according to the specified pressure.

[0070] In the structure, the number of the cleaning assembly is not specified, two cleaning assemblies can be set according to the temporary situation, when the sliding base 20 moves in the opposite direction of the arrow, the seamless steel pipe can still be corrected, the number of the infrared distance sensor 25 and the infrared temperature sensor 31 can be selected according to the actual working condition on site.

[0071] Equipment parameter pre-adjustment: according to the actual length and diameter of the seamless steel pipe to be corrected, start the first motor 5 to drive the first rotating shaft 6, use the first lead screw 7 with opposite threads at both ends to drive the supporting plate 2 to slide horizontally along the machine base 1, accurately adjust the distance between the two supporting plates 2, at this time, the plurality of U-shaped limiting frames 4 will slide along the machine base 1;

[0072] At the same time, the second motor 14 is started to drive the second rotating shaft 15, and the longitudinal spacing between the two U-shaped support frames is flexibly adjusted through the cooperation of the second screw rod 16 and the second sliding block 13, so that the support roller 10 and the limiting roller 19 can adapt to the size of the seamless steel pipe, laying a foundation for subsequent correction work.

[0073] Seamless steel pipe positioning and fixing: the seamless steel pipe is stably placed on the support roller 10, the first hydraulic cylinder 18 is started to make the limiting roller 19 press down, and the two ends of the seamless steel pipe are stably clamped together with the support roller 10, so that the axis of the two ends of the seamless steel pipe is in a horizontal alignment state, avoiding deviation during the correction process. At this time, the seamless steel pipe penetrates through the first annular frame 24, the third annular frame 27, the second annular frame 26 and the dust absorption annular frame 44 on the equipment, and enters the waiting processing position.

[0074] Component cooperative movement detection: the third motor 22 is started to drive the third screw rod 23 to rotate, and the sliding base 20 moves stably along the hollow groove 21 of the machine base 1. The moving direction is opposite to the arrow shown in the drawing, so that the cleaning component, the detection component and the correction component move synchronously along the axial direction of the seamless steel pipe.

[0075] The inner circle of the second annular frame 26 is provided with two installation grooves 41 symmetrically arranged in the first cavity 37. The inner circle of the installation groove 41 is provided with a sealing bearing. The outer circle of the sealing bearing is in interference fit with the installation groove 41. The inner circle of the sealing bearing is in interference fit with the annular air deflector 38. The peripheral side of the annular air deflector 38 is provided with a second gear ring 40. The bottom of the second annular frame 26 is fixedly provided with a fifth motor 42. The output end of the fifth motor 42 is provided with a second gear 43 engaged with the second gear ring 40.

[0076] The cleaning component further comprises a dust absorption annular frame 44. One side of the dust absorption annular frame 44 is provided with a second adapter pipe 45. The dust absorption annular frame 44 is fixed to one side of the second annular frame 26 through a support rod. The inner circle of the dust absorption annular frame 44 is provided with a magnetic absorption annular plate 46. The magnetic absorption annular plate 46 is provided with a plurality of dust absorption pipes 47 in communication with the dust absorption annular frame 44.

[0077] In this process, the cleaning component works first. The fifth motor 42 drives the annular air deflector 38 to rotate, and high-pressure airflow is sprayed through the air outlet pipe 39 at multiple angles. With the movement of the cleaning component, the outer wall of the seamless steel pipe can be fully blown. At the same time, the magnetic absorption annular plate 46 in the dust absorption annular frame 44 cooperates with the dust absorption pipe 47 to adsorb dust and impurities and discharge them into an industrial dust collector through the second adapter pipe 45. Magnetic metal impurities are adsorbed on the inner side of the magnetic absorption annular plate 46 for convenient classification and cleaning, so that surface cleaning is completed, and impurities are avoided to affect the accuracy of the infrared distance sensor 25 in subsequent detection.

[0078] Accurate detection and dynamic correction: the infrared distance sensor 25 in the detection assembly continuously monitors the distance between the seamless steel pipe outer wall and the sensor, and captures the bending data of the seamless steel pipe in real time.

[0079] When abnormal changes in the distance are detected, the system immediately transmits a signal to the third motor 22 and the fourth motor 35. After the third motor 22 is started, it moves the third ring-shaped frame 27 to the previously detected position, and then the fourth motor 35 drives the third ring-shaped frame 27 to rotate to the specified angle, so that the two sets of correction blocks 29 align with the bending part at the specified angle.

[0080] Subsequently, the infrared temperature sensor 31 measures the temperature at the correction position, and intelligently adjusts the operating parameters of the second hydraulic cylinder 28 according to the temperature data, so that the correction block 29 extrudes and corrects the seamless steel pipe with precise pressure, realizing the closed-loop operation of "detection-positioning-adjustment-correction".

[0081] The third ring-shaped frame 27 and the first and second ring-shaped frames are designed with a ring-shaped groove 32, a ring-shaped protrusion 30, and a positioning bearing, which effectively enhances the stability and coaxiality of the correction assembly during rotation.

[0082] The outer walls of the support rollers 10 and the limiting rollers 19 are provided with anti-slip patterns, and are in cylindrical structures.

[0083] The upper end of the support plate 2 is provided with two guide rods 11 penetrating the U-shaped support frame symmetrically with respect to the chute 12, and the U-shaped support frame is slidingly connected with the guide rod 11.

[0084] The surface anti-slip pattern design of the support rollers 10 and the limiting rollers 19, combined with the constraint of the U-shaped support frame by the guide rod 11, ensures the stability of the seamless steel pipe during the correction process and improves the overall operation reliability of the equipment.

[0085] Recommended model of the first motor 5: ASDA-A3 series servo motor of Delta.

[0086] Recommended model of the second motor 14: MINASA6 series stepper motor of Panasonic.

[0087] Recommended model of the third motor 22: Sigma-7 series servo motor of Yaskawa.

[0088] Recommended model of the fourth motor 35: DM542 intelligent stepper motor of Raysee.

[0089] Recommended model of the fifth motor 42: Vexta series micro servo motor of Oriental Motor.

[0090] Recommended model of the infrared distance sensor 25: IL-600 of Keyence.

[0091] Selection basis: ToF flight time method, non-contact detection suitable for steel pipe surface, 1ms response can capture more than 0.3° bending degree change, meet ±0.1° correction accuracy requirement.

[0092] Recommended model of infrared temperature sensor 31: OPTRIS PI450.

[0093] Key parameters: temperature measurement range-20-1500℃, accuracy ±0.5℃, spectral response 8-14μm.

[0094] Selection basis: suitable for 800-1100℃ high temperature working condition after hot rolling, 8-14μm wavelength adapts to metal surface emissivity, ±0.5℃ accuracy supports correction pressure dynamic compensation.

[0095] Recommended model of pulse blower: MAF5000.

[0096] Selection basis: high pressure and large air volume cooperate with annular air deflector 38 rotation to realize 360° dead angle free blowing, meet Sa2.5 level cleaning standard.

[0097] Recommended model of industrial dust collector: FESTO CS compressed air dust collector.

[0098] Selection basis: high negative pressure and high efficiency adsorption of small particles, large capacity reduces emptying frequency, cooperate with magnetic annular plate 46 to separate metal debris, avoid secondary pollution.

[0099] In the description in this document, it should be noted that the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0100] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application.

Claims

1. A straightening device for seamless steel pipe production, comprising a base (1), characterized in that: Two support components are symmetrically arranged at both ends of the base (1). The support components are slidably connected to the base (1). The support components include a support plate (2). A support rod (17) is provided at the rear end of the support plate (2). A first hydraulic cylinder (18) is provided at the top end of the support rod (17). A limiting roller (19) is provided at the output end of the first hydraulic cylinder (18). Two support rollers (10) are symmetrically arranged at the upper end of the support plate (2). The base (1) is provided with a slot (21), and a sliding base (20) is slidably arranged inside the slot (21). The upper end of the sliding base (20) is provided with a cleaning component, a detection component and a correction component. The cleaning assembly includes a second ring frame (26) and an annular air guide plate (38). A first transfer pipe (36) is provided on one side of the second ring frame (26). A first cavity (37) is provided inside the second ring frame (26). An annular air guide plate (38) is provided on the inner ring of the second ring frame (26). A plurality of air outlet pipes (39) communicating with the first cavity (37) are provided on the annular air guide plate (38). The detection assembly includes a first ring frame (24), and multiple infrared distance sensors (25) are fixedly arranged on the inner wall of the first ring frame (24). The correction assembly includes a third ring frame (27), and multiple second hydraulic cylinders (28) are fixedly installed on the outer wall of the third ring frame (27). The output end of the second hydraulic cylinder (28) is provided with a correction block (29) located in the inner ring of the third ring frame (27). Multiple infrared temperature sensors (31) are provided on the inner wall of the third ring frame (27). The infrared temperature sensors (31) are located on both sides of the correction block (29). A first toothed ring (33) is provided on the periphery of the third ring frame (27).

2. The straightening equipment for seamless steel pipe production according to claim 1, characterized in that: One end of the base (1) is provided with a third motor (22), and the output end of the third motor (22) is provided with a third lead screw (23) that passes through the sliding base (20). The third lead screw (23) is threadedly connected to the sliding base (20).

3. The straightening equipment for seamless steel pipe production according to claim 2, characterized in that: The first ring frame (24) and the second ring frame (26) are both fixed to the upper end of the sliding base (20). The third ring frame (27) is located between the first ring frame (24) and the second ring frame (26) and is rotatably connected to the first ring frame (24) and the second ring frame (26). The upper end of the second ring frame (26) is provided with a fourth motor (35). The output end of the fourth motor (35) is provided with a first gear (34) that meshes with the first gear ring (33). The third motor (22), the fourth motor (35), and the second hydraulic cylinder (28) are connected to the infrared distance sensor (25) via electrical signals, and the infrared temperature sensor (31) is connected to the second hydraulic cylinder (28) via electrical signals.

4. The straightening equipment for seamless steel pipe production according to claim 3, characterized in that: The other end of the base (1) is fixedly provided with a first motor (5). The output end of the first motor (5) is provided with a first rotating shaft (6) located below the base (1). The two ends of the first rotating shaft (6) are symmetrically provided with two first screws (7) with reverse threads. The lower end of the support plate (2) is provided with a base frame (3). The base frame (3) is located on both sides of the base (1). The inner side of the base frame (3) is provided with a U-shaped limiting frame (4). The two sides of the base (1) are inserted into the U-shaped limiting frame (4), and the U-shaped limiting frame (4) is slidably connected to the base (1). The lower end of the base frame (3) is provided with a first slider (8) that is penetrated by the first screw (7), and the first slider (8) is threadedly connected to the first screw (7). The upper end of the support plate (2) is symmetrically provided with two U-shaped support frames and a slide groove (12). The lower end of the U-shaped support frame is provided with a second slider (13) that is slidably connected to the slide groove (12). One end of the support plate (2) is provided with a second motor (14). The output end of the second motor (14) is provided with a second rotating shaft (15). Two second screws (16) with reverse thread structure are symmetrically provided on the second rotating shaft (15). The two second screws (16) pass through the two second sliders (13) respectively and are threadedly connected to the second sliders (13). The support roller (10) is installed at the upper end of the U-shaped support frame.

5. The straightening equipment for seamless steel pipe production according to claim 4, characterized in that: The upper end of the support plate (2) is symmetrically provided with two guide rods (11) that pass through the U-shaped support frame, and the U-shaped support frame is slidably connected to the guide rods (11).

6. The straightening equipment for seamless steel pipe production according to claim 5, characterized in that: The inner ring of the second ring frame (26) is symmetrically provided with two mounting slots (41) to the first cavity (37). The inner ring of the mounting slot (41) is provided with a sealed bearing. The outer ring of the sealed bearing is interference-fitted with the mounting slot (41). The inner ring of the sealed bearing is interference-fitted with the annular air guide plate (38). The annular air guide plate (38) is provided with a second gear ring (40) on its periphery. The bottom of the second ring frame (26) is fixedly provided with a fifth motor (42). The output end of the fifth motor (42) is provided with a second gear (43) that meshes with the second gear ring (40). The cleaning assembly also includes a vacuum ring frame (44), a second adapter pipe (45) is provided on one side of the vacuum ring frame (44), the vacuum ring frame (44) is fixed to one side of the second ring frame (26) by a support rod, a magnetic ring plate (46) is provided on the inner ring of the vacuum ring frame (44), and a plurality of vacuum pipes (47) connected to the vacuum ring frame (44) are provided on the magnetic ring plate (46).

7. A straightening device for seamless steel pipe production according to claim 6, characterized in that: The first ring frame (24) and the second ring frame (26) are provided with annular grooves (32) on the side near the third ring frame (27). The third ring frame (27) is provided with annular protrusions (30) on both sides that are inserted into the annular grooves (32). A positioning bearing is provided on the inner wall of the annular groove (32). The outer ring of the positioning bearing is interference-fitted with the inner wall of the annular groove (32), and the inner ring of the positioning bearing is interference-fitted with the outer wall of the annular protrusion (30).

8. A straightening method for a straightening device used in seamless steel pipe production, for implementing the straightening device for seamless steel pipe production as claimed in claim 6 or 7, characterized in that: Includes the following steps: Step 1: Adjust the spacing between the two U-shaped support frames and the spacing between the two support plates (2) according to the length and diameter of the seamless steel pipe; Step 2: Place the seamless steel pipe on multiple support rollers (10), and then start the first hydraulic cylinder (18) to fix the two ends of the seamless steel pipe with the limiting roller (19) and the support roller (10). At this time, the two ends of the seamless steel pipe are on the same axis, and the seamless steel pipe will pass through the first ring frame (24), the third ring frame (27), the second ring frame (26) and the dust collection ring frame (44). Step 3: Start the third motor (22) to rotate the third lead screw (23), and move the sliding base (20) along the third lead screw (23) in the slot (21), thereby moving the cleaning component, the detection component and the straightening component along the seamless steel pipe; Step 4: During the movement of the sliding base (20), the cleaning component cleans the outer wall of the seamless steel pipe, and the detection component detects the curvature of the seamless steel pipe through multiple infrared distance sensors (25). Based on the measured results, the fourth motor (35) is controlled to adjust the rotation angle of the third ring frame (27), so that the straightening block (29) can straighten the seamless steel pipe at a specified angle.

9. The straightening method of the straightening equipment for seamless steel pipe production according to claim 8, characterized in that: Start the first motor (5) to make the first rotating shaft (6) rotate with the two first lead screws (7), and make the two first sliders (8) slide along the first lead screws (7) to adjust the distance between the two support plates (2). Start the second motor (14) to make the second rotating shaft (15) rotate with the second lead screw (16), and make the two second sliders (13) slide along the two second lead screws (16) to adjust the distance between the two U-shaped support frames.

10. The straightening method of the straightening equipment for seamless steel pipe production according to claim 9, characterized in that: When the cleaning assembly is in use, the first adapter pipe (36) is connected to the external pulse blower through a duct, and the second adapter pipe (45) is connected to the external industrial vacuum cleaner through a duct. During the movement of the cleaning component, the fifth motor (42) is started. Through the cooperation of the second gear (43) and the second gear ring (40), the annular air guide plate (38) rotates in the inner ring of the second annular frame (26), adjusting the air outlet position of multiple air outlet pipes (39) to clean the outer wall of the seamless steel pipe more evenly. The dust and impurities that are cleaned will enter the vacuuming annular frame (44) through the vacuum pipe (47) and then enter the industrial vacuum cleaner through the second adapter pipe (45). During the movement of the detection component, multiple infrared distance sensors (25) can detect the distance between themselves and the outer wall of the seamless steel pipe at all times. When the distance changes, the correction component will move to this point. Then, based on the measured result, the fourth motor (35) will start, and the first gear (34) will rotate the third ring frame (27) by a specified angle through the cooperation of the first gear ring (33), so that the correction component will apply the correction force at the specified angle. When the straightening assembly is in use, the infrared temperature sensor (31) can measure the temperature at the straightening point and control the operating parameters of the second hydraulic cylinder (28) according to the temperature, so that the straightening block (29) squeezes and straightens the seamless steel pipe according to the specified pressure.

Images