Straightening device for seamless steel pipe production

Abstract

The invention relates to the technical field of steel pipe production, in particular to a straightening device for seamless steel pipe production, which comprises a base, a portal frame, a longitudinal support plate and a support side plate, the portal frame is mounted at one end of the top of the base through bolts, and the longitudinal support plate is mounted at the inner top of the portal frame through bolts; a servo motor is mounted at one end of the bottom of the longitudinal supporting plate through a motor mounting plate, an output shaft of the servo motor is connected with a lead screw through a coupler, the lead screw is sleeved with a screw block, an adjusting electric cylinder is mounted at the bottom of the screw block through a mounting seat, and a connecting vertical plate is mounted on an output shaft of the adjusting electric cylinder through a bolt; the straightening device for seamless steel pipe production is convenient to realize automatic feeding, convenient to automatically search the bent section of the seamless steel pipe and automatically rotate upwards to complete straightening by utilizing the straightening equipment, and finally detects the straightened seamless steel pipe, is high in automation degree, saves manpower and material resources, and greatly improves the straightening efficiency of the steel pipe.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe production, and in particular to a straightening device for seamless steel pipe production. Background Art

[0002] The straightening machine for steel pipe production is a mechanical device specially used to correct the bending degree of steel pipes. It plays a vital role in the steel pipe production process. The steel pipe straightening machine is a device that forcibly straightens the bent steel pipe by applying external force. It can effectively improve the straightness of the steel pipe, improve the quality of the finished steel pipe, and meet the strict requirements of various projects on the straightness of the steel pipe; seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, jacking pipes, etc. according to the production method. Seamless steel pipes need to be straightened by the straightening process technology for seamless steel pipe production during production and processing.

[0003] The existing straightening device for seamless steel pipe production is not convenient for automatic feeding, cannot automatically find the curved section of the seamless steel pipe and automatically rotate upward to complete straightening using the straightening equipment, cannot detect the seamless steel pipe after straightening, has a low degree of automation, is time-consuming and labor-intensive, and has low straightening efficiency for seamless steel pipes. Summary of the invention

[0004] In response to the problems in the prior art, the present invention provides a straightening device for the production of seamless steel pipes. The straightening process for the production of seamless steel pipes is convenient for realizing automatic feeding, automatically finding the curved section of the seamless steel pipe and automatically rotating it upward to complete straightening using the straightening equipment, and finally inspecting the straightened seamless steel pipe. It has a high degree of automation, saves manpower and material resources, and greatly improves the straightening efficiency of the steel pipe.

[0005] The technical solution adopted by the present invention to solve its technical problem is a straightening device for seamless steel pipe production, comprising a base, a gantry, a longitudinal support plate and a support side plate, wherein the top end of the base is mounted with the gantry by bolts and the inner top of the gantry is mounted with the longitudinal support plate by bolts, the bottom end of the longitudinal support plate is mounted with a servo motor by a motor mounting plate, the output shaft of the servo motor is connected with a lead screw by a coupling and a lead screw block is sleeved on the lead screw, an adjusting electric cylinder is mounted with a mounting seat at the bottom of the lead screw block and a connecting vertical plate is mounted with bolts on the output shaft of the adjusting electric cylinder, a rotating motor is mounted on one side of the connecting vertical plate by a mounting seat and an active bevel gear is sleeved on the output shaft of the rotating motor, a rotating shaft is sleeved with a bearing at the lower end of the connecting vertical plate and a driven bevel gear is sleeved on one end of the rotating shaft, and a three-jaw chuck is mounted with bolts on the other end of the rotating shaft;

[0006] A hanging plate is welded to the other end of the bottom of the longitudinal support plate, and a visual inspection camera A is installed on the bottom of the hanging plate through a mounting seat, support side plates are installed on both sides of the other end of the top of the base through bolts, and feed rollers are connected to the support side plates at equal distances through bearings, the top of the support side plate is connected to a horizontal top plate through a column, and straightening electric cylinders are installed on both ends of the top of the horizontal top plate through mounting seats, the output shaft of the straightening electric cylinder is connected to a U-shaped plate through screws, and a straightening roller is connected to the U-shaped plate through bearings, one side of the horizontal top plate is opposite to the hanging plate, and a visual inspection camera B is installed on the other side of the horizontal top plate through a mounting seat.

[0007] By adopting the above technical scheme, the straightening process for seamless steel pipe production is convenient for realizing automatic feeding, automatically finding the curved section of the seamless steel pipe and automatically rotating it upward to complete the straightening using the straightening equipment, and finally inspecting the straightened seamless steel pipe. It has a high degree of automation, saves manpower and material resources, and greatly improves the straightening efficiency of the steel pipe.

[0008] Specifically, a PLC controller is installed on the inner side of the gantry through bolts, and the output end of the PLC controller is electrically connected to the input ends of the servo motor, the rotating motor, the adjusting electric cylinder and the straightening electric cylinder through wires.

[0009] Specifically, the driving bevel gear and the driven bevel gear are meshed with each other.

[0010] By adopting the above technical solution, the active bevel gear and the driven bevel gear mesh with each other, thereby driving the three-jaw chuck to rotate a certain angle, and sending the bent section of the steel pipe upward to just below the straightening roller.

[0011] Specifically, a sliding groove is provided at the bottom of the longitudinal support plate, and a sliding block is installed on the top of the wire block by screws, and the sliding block is located in the sliding groove.

[0012] Specifically, the other end of the screw rod is connected to the hanging plate through a bearing.

[0013] Specifically, the visual inspection camera A and the visual inspection camera B are both connected to the PLC controller via signal lines.

[0014] By adopting the above technical solution, visual inspection camera A detects the bending shape of the steel pipe and transmits the recorded data information to the PLC controller for analysis and processing. When the bending degree exceeds the set value, the PLC controller will control the rotation motor to work; the visual inspection camera B is used to take pictures of the straightened steel pipe for inspection, and transmits it to the PLC controller for comparison and analysis. When it does not meet the requirements, the equipment stops working.

[0015] A straightening device for seamless steel pipe production, the specific straightening process steps are as follows:

[0016] Step 1: The technicians set the working parameters of the servo motor, rotary motor, regulating cylinder and straightening cylinder through the PLC controller to facilitate control;

[0017] Step 2: First, slide the connecting vertical plate to the outermost end, insert one end of the steel pipe to be straightened into the three-jaw chuck for quick clamping and fixing, and use the adjusting electric cylinder to drive the clamped steel pipe to move downward so that the other end of the steel pipe to be straightened is placed on the top of the feeding roller;

[0018] Step 3: Use the servo motor to feed the steel pipe to be straightened toward one end of the straightening roller, and use the visual inspection camera A to inspect the bending shape of the steel pipe, and transmit the recorded data information to the PLC controller for analysis and processing;

[0019] Step 4: When the bending degree exceeds the set value, the PLC controller will control the rotating motor to work, and the rotating motor will drive the active bevel gear to rotate a specified angle, thereby driving the three-jaw chuck to rotate a certain angle, and send the bent section of the steel pipe upward to the bottom of the straightening roller;

[0020] Step 5: Use the straightening electric cylinder to drive the straightening roller to move downward to squeeze the curved section of the steel pipe. When the straightening of this section is completed, the straightening electric cylinder drives the straightening roller to automatically lift up. The steel pipe continues to be fed forward while the bending shape is detected. The target is continuously locked so that the curved section of the steel pipe faces upward, and the straightening roller is used for straightening;

[0021] Step 6: Use visual inspection camera B to take photos of the straightened steel pipe and transmit them to the PLC controller for comparison and analysis. If the requirements are not met, the equipment will stop working, find the cause, and straighten it again.

[0022] Beneficial effects of the present invention:

[0023] (1) The straightening device for seamless steel pipe production described in the present invention first slides the connecting vertical plate to the outermost end, inserts one end of the steel pipe to be straightened into the three-jaw chuck for rapid clamping and fixing, and uses the adjusting electric cylinder to drive the clamped steel pipe to move downward so that the other end of the steel pipe to be straightened is placed on the top of the feeding roller. The servo motor is used to feed the steel pipe to be straightened toward one end of the straightening roller, and the visual inspection camera A detects the bending shape of the steel pipe, and transmits the recorded data information to the PLC controller for analysis and processing. When the bending degree exceeds the set value, the PLC controller controls the rotation motor to work, and the rotation motor drives the active bevel gear to rotate a specified angle. Since the active bevel gear and the driven bevel gear are meshed with each other, the three-jaw chuck is driven to rotate a certain angle, and the bent section of the steel pipe is fed upward to the bottom of the straightening roller.

[0024] (2) The straightening device for seamless steel pipe production described in the present invention utilizes a straightening electric cylinder to drive a straightening roller to move downward to squeeze the curved section of the steel pipe. When the straightening of the section is completed, the straightening electric cylinder drives the straightening roller to automatically lift up, and the steel pipe continues to be fed forward while detecting the bending shape. The target is continuously locked so that the curved section of the steel pipe faces upward, and the straightening roller is used for straightening. The device has a high degree of automation, saves manpower and material resources, and greatly improves the straightening efficiency of the steel pipe. The visual inspection camera B is used to take pictures of the straightened steel pipe for inspection, and the pictures are transmitted to the PLC controller for comparison and analysis. When the requirements are not met, the device stops working, finds the cause, and performs straightening again. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the end structure of the present invention;

[0028] Figure 3 A bottom view of the present invention;

[0029] Figure 4 For the present invention Figure 3 A large-scale drawing of point A.

[0030] In the figure: 1. Feed roller; 2. Three-jaw chuck; 3. Base; 4. Driven bevel gear; 5. Rotating shaft; 6. Active bevel gear; 7. Rotating motor; 8. PLC controller; 9. Sliding groove; 10. Servo motor; 11. Motor mounting plate; 12. Gantry; 13. Straightening roller; 14. U-shaped plate; 15. Longitudinal support plate; 16. Visual inspection camera A; 17. Hanging plate; 18. Straightening electric cylinder; 19. Horizontal top plate; 20. Column; 21. Support side plate; 22. Visual inspection camera B; 23. Wire block; 24. Screw rod; 25. Adjusting electric cylinder; 26. Connecting vertical plate. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] In order to facilitate the automatic feeding of the straightening process for seamless steel pipe production, it is convenient to automatically find the bending section of the seamless steel pipe and automatically rotate it upward to complete the straightening using the straightening equipment. Finally, the seamless steel pipe after straightening is tested. The automation degree is high, manpower and material resources are saved, and the straightening efficiency of the steel pipe is greatly improved. Figure 1-4As shown, a straightening device for seamless steel pipe production described in the present invention comprises a base 3, a gantry 12, a longitudinal support plate 15 and a support side plate 21, the top end of the base 3 is installed with the gantry 12 by bolts, and the inner top of the gantry 12 is installed with the longitudinal support plate 15 by bolts, the bottom end of the longitudinal support plate 15 is installed with a servo motor 10 through a motor mounting plate 11, the output shaft of the servo motor 10 is connected to the screw rod 24 through a coupling, and the screw rod 24 is sleeved with a screw block 23, the bottom of the screw block 23 is installed with an adjusting electric cylinder 25 through a mounting seat, and the output shaft of the adjusting electric cylinder 25 is installed with a connecting vertical plate 26 through bolts, a rotating motor 7 is installed on one side of the connecting vertical plate 26 through a mounting seat, and the output shaft sleeve of the rotating motor 7 is provided with an active bevel gear 6, the lower end of the connecting vertical plate 26 is sleeved with a rotating shaft 5 through a bearing, and one end of the rotating shaft 5 is sleeved with a driven bevel gear 4, and the other end of the rotating shaft 5 is installed with a three-jaw chuck 2 through bolts;

[0033] A hanging plate 17 is welded to the other end of the bottom of the longitudinal support plate 15, and a visual inspection camera A16 is installed at the bottom of the hanging plate 17 through a mounting seat, support side plates 21 are installed on both sides of the other end of the top of the base 3 through bolts, and the feed rollers 1 are connected equidistantly between the support side plates 21 through bearings, the top of the support side plates 21 is connected to the horizontal top plate 19 through the column 20, and the two ends of the top of the horizontal top plate 19 are installed with straightening electric cylinders 18 through mounting seats, the output shaft of the straightening electric cylinder 18 is connected to the U-shaped plate 14 through screws, and the U-shaped plate 14 is connected with a straightening roller 13 through a bearing, one side of the horizontal top plate 19 is opposite to the hanging plate 17, and a visual inspection camera B22 is installed on the other side of the horizontal top plate 19 through a mounting seat.

[0034] When in use, the straightening process for seamless steel pipe production facilitates automatic feeding, automatic search for the curved section of the seamless steel pipe, and automatic rotation upward to complete straightening using the straightening equipment, and finally the straightened seamless steel pipe is inspected. It has a high degree of automation, saves manpower and material resources, and greatly improves the straightening efficiency of the steel pipe.

[0035] For example, Figure 1 , 2 As shown, the present invention also includes that a PLC controller 8 is installed on the inner side of the gantry 12 by bolts, and the output end of the PLC controller 8 is electrically connected to the input ends of the servo motor 10, the rotating motor 7, the adjusting electric cylinder 25 and the straightening electric cylinder 18 by wires.

[0036] When in use, the working parameters of the servo motor 10, the rotating motor 7, the regulating electric cylinder 25 and the straightening electric cylinder 18 can be easily set through the PLC controller 8, so as to facilitate control.

[0037] For example, Figure 1As shown, the present invention also includes that the driving bevel gear 6 and the driven bevel gear 4 are meshed with each other.

[0038] When in use, the active bevel gear 6 and the driven bevel gear 4 mesh with each other, thereby driving the three-jaw chuck 2 to rotate a certain angle, and sending the bent section of the steel pipe upward to just below the straightening roller 13.

[0039] For example, Figure 4 As shown, the present invention also includes that a sliding groove 9 is opened at the bottom of the longitudinal support plate 15, and a sliding block is installed on the top of the wire block 23 by screws and the sliding block is located in the sliding groove 9.

[0040] When in use, the wire block 23 is allowed to slide stably on the wire rod 24 to reduce shaking.

[0041] For example, Figure 1 , 2 As shown, the present invention also includes that the other end of the screw rod 24 is connected to the hanging plate 17 via a bearing.

[0042] When in use, the screw rod 24 is allowed to rotate stably to reduce shaking.

[0043] For example, Figure 1 , 2 As shown, the present invention also includes that the visual inspection camera A16 and the visual inspection camera B22 are both connected to the PLC controller 8 via a signal line.

[0044] When in use, the visual inspection camera A16 detects the bending shape of the steel pipe and transmits the recorded data information to the PLC controller 8 for analysis and processing. When the degree of bending exceeds the set value, the PLC controller 8 will control the rotating motor 7 to work; the visual inspection camera B22 is used to take pictures of the straightened steel pipe and transmit it to the PLC controller 8 for comparison and analysis. When it does not meet the requirements, the equipment stops working.

[0045] A straightening device for seamless steel pipe production, the specific straightening process steps are as follows:

[0046] Step 1: The technician sets the working parameters of the servo motor 10, the rotating motor 7, the regulating electric cylinder 25 and the straightening electric cylinder 18 through the PLC controller 8 to facilitate control;

[0047] Step 2: First, slide the connecting vertical plate 26 to the outermost end, insert one end of the steel pipe to be straightened into the three-jaw chuck 2 to achieve rapid clamping and fixing, and use the adjusting electric cylinder 25 to drive the clamped steel pipe to move downward, so that the other end of the steel pipe to be straightened is placed on the top of the feeding roller 1;

[0048] Step 3: Use the servo motor 10 to feed the steel pipe to be straightened toward one end of the straightening roller 13, and the visual inspection camera A16 inspects the bending shape of the steel pipe, and transmits the recorded data information to the PLC controller 8 for analysis and processing;

[0049] Step 4: When the bending degree exceeds the set value, the PLC controller 8 controls the rotating motor 7 to work, and the rotating motor 7 drives the active bevel gear 6 to rotate a specified angle, thereby driving the three-jaw chuck 2 to rotate a certain angle, and the bent section of the steel pipe is sent upward to the bottom of the straightening roller 13;

[0050] Step 5: Use the straightening electric cylinder 18 to drive the straightening roller 13 to move downward to squeeze the curved section of the steel pipe. After the straightening of the section is completed, the straightening electric cylinder 18 drives the straightening roller 13 to automatically lift up, and the steel pipe continues to be fed forward while the bending shape is detected. The target is continuously locked so that the curved section of the steel pipe faces upward, and the straightening roller 13 is used for straightening;

[0051] Step 6: Use the visual inspection camera B22 to take photos of the straightened steel pipes and transmit them to the PLC controller 8 for comparison and analysis. If the requirements are not met, the equipment stops working, finds the cause, and straightens again.

[0052] When the present invention is used, the servo motor 10 is used to drive the screw rod 24 to rotate forward and reverse, so that the wire block 23 moves back and forth on the screw rod 24. First, the connecting vertical plate 26 is slid to the outermost end, and one end of the steel pipe to be straightened is inserted into the three-jaw chuck 2 to achieve rapid clamping and fixing;

[0053] The clamped steel pipe is driven downward by the adjusting electric cylinder 25 so that the other end of the steel pipe to be straightened is placed on the top of the feeding roller 1. The servo motor 10 is used to feed the steel pipe to be straightened toward one end of the straightening roller 13. The visual inspection camera A16 detects the bending shape of the steel pipe and transmits the recorded data information to the PLC controller 8 for analysis and processing.

[0054] When the bending degree exceeds the set value, the PLC controller 8 controls the rotating motor 7 to work, and the rotating motor 7 drives the active bevel gear 6 to rotate a specified angle. Since the active bevel gear 6 and the driven bevel gear 4 are meshed with each other, the three-jaw chuck 2 is driven to rotate a certain angle, and the bent section of the steel pipe is sent upward to the bottom of the straightening roller 13, and the straightening roller 13 is driven downward by the straightening electric cylinder 18 to squeeze the bent section of the steel pipe;

[0055] After the straightening of the section is completed, the straightening electric cylinder 18 drives the straightening roller 13 to automatically lift up, and the steel pipe continues to be fed forward while the bending shape is detected. The target is continuously locked so that the bending section of the steel pipe is facing upward, and the straightening roller 13 is used for straightening. It has a high degree of automation, saves manpower and material resources, and greatly improves the straightening efficiency of the steel pipe. The visual inspection camera B22 is used to facilitate the photo inspection of the straightened steel pipe, and transmits it to the PLC controller 8 for comparison and analysis. When it does not meet the requirements, the equipment stops working, finds the cause, and re-straightens.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A straightening device for seamless steel pipe production, characterized in that: The invention comprises a base (3), a gantry (12), a longitudinal support plate (15) and a support side plate (21), wherein the gantry (12) is mounted on one end of the top of the base (3) via bolts, and the longitudinal support plate (15) is mounted on the inner top of the gantry (12) via bolts, and a servo motor (10) is mounted on one end of the bottom of the longitudinal support plate (15) via a motor mounting plate (11), and the output shaft of the servo motor (10) is connected to a screw rod (24) via a coupling, and a screw block (23) is sleeved on the screw rod (24), and the screw block (23) 23) is mounted with an adjusting electric cylinder (25) at the bottom through a mounting seat, and the output shaft of the adjusting electric cylinder (25) is mounted with a connecting vertical plate (26) through bolts, a rotating motor (7) is mounted on one side of the connecting vertical plate (26) through a mounting seat, and the output shaft sleeve of the rotating motor (7) is provided with a driving bevel gear (6), a rotating shaft (5) is sleeved on the lower end of the connecting vertical plate (26) through a bearing, and a driven bevel gear (4) is sleeved on one end of the rotating shaft (5), and a three-jaw chuck (2) is mounted on the other end of the rotating shaft (5) through bolts; A hanging plate (17) is welded to the other end of the bottom of the longitudinal support plate (15), and a visual inspection camera A (16) is installed at the bottom of the hanging plate (17) via a mounting seat; support side plates (21) are installed on both sides of the other end of the top of the base (3) via bolts, and feed rollers (1) are connected equidistantly between the support side plates (21) via bearings; the top of the support side plates (21) is connected to a horizontal top plate (19) via a column (20); straightening electric cylinders (18) are installed at both ends of the top of the horizontal top plate (19) via mounting seats; the output shaft of the straightening electric cylinder (18) is connected to a U-shaped plate (14) via screws, and a straightening roller (13) is connected inside the U-shaped plate (14) via a bearing; one side of the horizontal top plate (19) faces the hanging plate (17), and a visual inspection camera B (22) is installed on the other side of the horizontal top plate (19) via a mounting seat.

2. A straightening device for seamless steel pipe production according to claim 1, characterized in that: A PLC controller (8) is installed on the inner side of the gantry (12) by means of bolts, and an output end of the PLC controller (8) is electrically connected to input ends of the servo motor (10), the rotating motor (7), the regulating electric cylinder (25) and the straightening electric cylinder (18) by means of wires.

3. A straightening device for seamless steel pipe production according to claim 1, characterized in that: The active bevel gear (6) and the driven bevel gear (4) are meshed with each other.

4. A straightening device for seamless steel pipe production according to claim 1, characterized in that: A sliding groove (9) is provided at the bottom of the longitudinal support plate (15), and a sliding block is mounted on the top of the wire block (23) via screws, and the sliding block is located in the sliding groove (9).

5. A straightening device for seamless steel pipe production according to claim 1, characterized in that: The other end of the screw rod (24) is connected to the hanging plate (17) via a bearing.

6. A straightening device for seamless steel pipe production according to claim 1, characterized in that: The visual inspection camera A (16) and the visual inspection camera B (22) are both connected to the PLC controller (8) via signal lines.

7. A straightening device for seamless steel pipe production according to claims 1-6, characterized in that: The specific straightening process steps are as follows: Step 1: The technician sets the working parameters of the servo motor (10), the rotating motor (7), the regulating electric cylinder (25) and the straightening electric cylinder (18) through the PLC controller (8) to facilitate control; Step 2: First, slide the connecting vertical plate (26) to the outermost end, insert one end of the steel pipe to be straightened into the three-jaw chuck (2) to achieve rapid clamping and fixing, and use the adjusting electric cylinder (25) to drive the clamped steel pipe to move downward, so that the other end of the steel pipe to be straightened is placed on the top of the feeding roller (1); Step 3: Using the servo motor (10) to feed the steel pipe to be straightened toward one end of the straightening roller (13), and using the visual inspection camera A (16) to inspect the bending shape of the steel pipe, and transmitting the recorded data information to the PLC controller (8) for analysis and processing; Step 4: When the bending degree exceeds the set value, the PLC controller (8) controls the rotating motor (7) to work, and the rotating motor (7) drives the active bevel gear (6) to rotate a specified angle, thereby driving the three-jaw chuck (2) to rotate a certain angle, and the bent section of the steel pipe is sent upward to the bottom of the straightening roller (13); Step 5: Using the straightening electric cylinder (18) to drive the straightening roller (13) to move downward, the curved section of the steel pipe is squeezed, and when the straightening of the section is completed, the straightening electric cylinder (18) drives the straightening roller (13) to automatically lift up, and the steel pipe continues to be fed forward while the bending shape is detected, and the target is continuously locked so that the curved section of the steel pipe faces upward, and the straightening roller (13) is used for straightening; Step 6: Use the visual inspection camera B (22) to take photos of the straightened steel pipe for inspection and transmit the photos to the PLC controller (8) for comparison and analysis. If the requirements are not met, the equipment stops working, finds the cause, and straightens again.

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