Outer diameter detection device for seamless steel pipe manufacturing

Abstract

The invention discloses an outer diameter detection device for seamless steel tube manufacturing, and relates to the technical field of seamless steel tube detection. Comprising a detection installation part, and a floating supporting part is installed on the detection installation part and used for elastically supporting the seamless steel pipe; a local contraction control part is mounted at the bottom of the detection mounting part; the local contraction control piece is used for controlling the floating supporting piece to ascend and descend. A movable detection piece is mounted on the detection mounting piece; the detection mounting piece is used for controlling the local contraction control piece; the seamless steel pipe is automatically and elastically supported, the device can be more suitable for detection work of the long seamless steel pipe, the seamless steel pipe does not need to be manually rotated, a row of floating springs can be matched according to the curvature of the seamless steel pipe, and hard support is avoided; the problems that an existing outer diameter detection device for seamless steel pipe manufacturing facilitates elastic supporting measurement, measurement precision control is not convenient, manual mistaken reading is likely to happen, and data accuracy is affected are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of seamless steel pipe detection, and particularly to an outer diameter detection device for seamless steel pipe manufacturing. Background Technique

[0002] The main reason for measuring the outer diameter during seamless steel pipe production is that the outer diameter is an important dimensional parameter of seamless steel pipes, and its accuracy is crucial for product quality and applications. By accurately measuring the outer diameter, it can be ensured that the dimensions of seamless steel pipes meet the design requirements and production standards; this helps to promptly detect and correct dimensional deviations during the production process, thereby improving the overall quality of the product. Inaccurate outer diameter dimensions may cause problems when seamless steel pipes are under pressure. In actual seamless steel pipe manufacturing work, factors such as the peeling of the steel pipe will affect the outer diameter detection accuracy. Currently, in the outer diameter detection device for seamless steel pipe manufacturing during the steel pipe detection work, a roller group is mostly used for support. For longer steel pipes, under the self-weight of the steel pipe, the basic deformation of the steel pipe will be squeezed and interfered with, affecting the detection accuracy, and it is not convenient for elastic support measurement. At the same time, it is not convenient for comprehensive detection work. The supporting roller group will cause occlusion, affecting the comprehensiveness of detection. If the method of moving the seamless steel pipe is used, it is easy to cause changes in the detection position of the steel pipe, affecting the detection accuracy. The traditional steel pipe cleaning method mostly uses a simple wiping method for cleaning. For situations such as peeling, it is difficult to remove by detection wiping, and it will also affect the detection accuracy. At the same time, it is not convenient for measuring accuracy control, and it is easy for manual reading errors, affecting data accuracy.

[0003] Therefore, we propose an outer diameter detection device for seamless steel pipe manufacturing. Summary of the Invention

[0004] The purpose of the present invention is to provide an outer diameter detection device for seamless steel pipe manufacturing to solve the problems in the above background technique that the current outer diameter detection device for seamless steel pipe manufacturing is not convenient for elastic support measurement, nor for measuring accuracy control, and it is easy for manual reading errors, affecting data accuracy.

[0005] To achieve the above object, the present invention provides the following technical solution: an outer diameter detection device for seamless steel pipe manufacturing, including a detection mounting member, on which a floating support member is mounted, and the floating support member is used for elastically supporting the seamless steel pipe; a local contraction control member is mounted at the bottom of the detection mounting member; the local contraction control member is used for controlling the lifting of the floating support member; a moving detection member is mounted on the detection mounting member; the detection mounting member is used for controlling the local contraction control member; a moving connecting member is mounted on the moving detection member; two fitting detection members are mounted on the moving connecting member; the two fitting detection members are used for detecting the diameter of the seamless steel pipe; a leveling control member is mounted on the detection mounting member; the leveling control member is used for ensuring the diameter detection accuracy; the detection mounting member includes: a detection mounting frame and a rectangular switch, and a row of rectangular switches are fixedly mounted on the detection mounting frame; two rows of slot holes are provided at the bottom of the detection mounting frame.

[0006] Preferably, the leveling control member includes: a cleaning motor, a roller frame and a cleaning sand roller. A roller frame is fixedly mounted on the fitting piece; a cleaning motor is fixedly mounted on the roller frame; a cleaning sand roller is fixedly mounted on the output shaft of the cleaning motor, and the cleaning sand roller is rotatably mounted on the roller frame; the outer side of the cleaning sand roller is flush with the inner side of the fitting piece.

[0007] Preferably, the floating support member includes: a floating connection lifting column, a support arc block, a floating spring and an electromagnet. The floating connection lifting column is a hexagonal column structure; there is a row of floating connection lifting columns, and the structures on the row of floating connection lifting columns are the same; the outer ring at the bottom of the row of floating connection lifting columns is a convex structure; the row of floating connection lifting columns are respectively slidably inserted into the detection mounting frame; support arc blocks are respectively threadedly connected to the row of floating connection lifting columns; the row of support arc blocks are respectively arc-shaped structures; floating springs are respectively sleeved on the row of floating connection lifting columns; the row of floating springs are respectively located between the detection mounting frame and the support arc blocks; electromagnets are respectively embedded in the row of support arc blocks; the electromagnets on the row of support arc blocks are respectively used for magnetically attracting the seamless steel pipe.

[0008] Preferably, the leveling control member further includes: a fitting elastic sheet and a power connection fixing sheet. Fitting elastic sheets are respectively fixedly mounted on both sides of the fitting piece; the two fitting elastic sheets are respectively arc-shaped structures; the two fitting elastic sheets are respectively used for elastically fitting the seamless steel pipe; power connection fixing sheets are respectively fixedly mounted on both sides of the fitting piece, and the two power connection fixing sheets are respectively used for abutting against the fitting elastic sheets; the fitting elastic sheet, the power connection fixing sheet and the warning lamp are connected in series to a power supply.

[0009] Preferably, the detection and installation member further includes: a propulsion control screw rod and a driving motor. Two propulsion control screw rods are rotatably installed on the detection and installation frame; two driving motors are fixedly installed on the detection and installation frame, and the output shafts of the two driving motors are respectively fixedly installed on the propulsion control screw rods.

[0010] Preferably, the fitting detection member includes: fitting columns and fitting springs. There are two fitting columns, and the two fitting columns are respectively slidably installed on the rotary ring; the two fitting columns are respectively of hexagonal column structure; fitting springs are respectively sleeved inside the two fitting columns; the end parts of the two fitting springs are respectively connected to the fitting columns, and the other ends of the two fitting springs are respectively fixedly installed on the inner side of the rotary ring.

[0011] Preferably, the local contraction control member includes: a swing control arm, a swing control groove, and a contraction electromagnet. There is a row of swing control arms, and the row of swing control arms are respectively rotatably installed on the detection and installation frame; the swing control arm is of iron structure; a swing control groove is formed on the swing control arm; the swing control groove is sleeved on the floating connection lifting column; the swing control arm is used to push the floating connection lifting column downward; a row of contraction electromagnets are fixedly installed at the bottom of the detection and installation frame, and the row of contraction electromagnets are respectively used to magnetically attract the tails of the row of swing control arms; the row of contraction electromagnets are respectively electrically connected to a row of rectangular switches.

[0012] Preferably, the movement detection member includes: movement detection sliders and power connection elastic sheets. Two movement detection sliders are slidably installed on the detection and installation frame; a power connection elastic sheet is fixedly installed on the movement detection slider located on one side of the rectangular switch; the electromagnet and the power connection elastic sheet are electrically connected to the rectangular switch; the movement detection sliders are threadedly connected to the propulsion control screw rods.

[0013] Preferably, the fitting detection member further includes: fitting pieces, detection arms, and a laser rangefinder. Fitting pieces are fixedly installed on the two fitting columns; the two fitting pieces are used to fit the outer wall of the seamless steel pipe; detection arms are respectively fixedly installed on the two fitting pieces, and a laser rangefinder is fixedly installed on the front detection arm; the two detection arms are aligned.

[0014] Preferably, the movable connecting member includes: a movable connecting frame, a warning light, a rotary ring, a positioning shaft, and a straightness laser measuring instrument. The movable connecting frame is fixedly installed on two movable detection sliders by bolts; two warning lights are fixedly installed on the movable connecting frame; a rotary ring is slidably sleeved on the movable connecting frame; a circle of jacks is provided on the side of the rotary ring; a positioning shaft is slidably sleeved on the movable connecting frame, and a tension spring is sleeved on the positioning shaft; the tension spring sleeved on the positioning shaft is connected between the movable connecting frame and the positioning shaft; a straightness laser measuring instrument is fixedly installed inside the rotary ring, and the straightness laser measuring instrument is used to measure the straightness of the seamless steel pipe; the positioning shaft is inserted into the rotary ring.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows;

[0016] The present invention adopts a local contraction control member to cooperate with a floating support member to realize automatic elastic support for seamless steel pipes, which is more suitable for the detection of longer seamless steel pipes. There is no need for manual operation to rotate the seamless steel pipe, which is more labor-saving. A row of floating springs can be adapted according to the curvature of the seamless steel pipe, and hard support will not be caused, ensuring the reduction degree of the structure after supporting the seamless steel pipe, and avoiding the problem that when a bent seamless steel pipe is directly placed on a traditional roller support, stress deformation is likely to occur in the steel pipe, and when subsequent diameter and straightness detections are carried out, the data deviates from the normal size of the seamless steel pipe.

[0017] By adopting a movable detection member to cooperate with a local contraction control member, the floating connection lifting column can be automatically controlled to move downward, and the movable connecting member can be automatically controlled to avoid, ensuring the continuity of the outer diameter detection of this structure, and continuous measurement work can be carried out to avoid jamming; by adopting a fitting detection member, it can be used to detect the diameter of the steel pipe and the straightness of the outer part of the steel pipe at the same time. The operation is simple and fast. While improving the detection efficiency, the fitting piece can be attached to the outer wall of the steel pipe, and is not affected by the position of the steel pipe, further ensuring the detection accuracy. The detection of this structure is direct, and during the process of repeatedly detecting the outer side of the pipe wall by the straightness laser measuring instrument, the pipe will not shake or displace, ensuring the detection accuracy.

[0018] By adopting a flattening control member, the automatic detection of flatness can be realized, avoiding the problem that the outer diameter detection accuracy is affected by factors such as local peeling and not being discovered. The detection of this structure is direct. By the fitting elastic piece being in real-time contact with the pipe wall, it is avoided that when the cleaning sand roller has not completely ground off the peeling and other small protrusions, the diameter parameter is too large caused by the fitting piece being attached to the polished part for diameter detection. This structure does not require manual observation of the grinding situation of the cleaning sand roller, which is more accurate and direct. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an outer diameter detection device for manufacturing seamless steel pipes of the present invention;

[0020] Figure 2 Schematic diagram of the bottom structure of an outer diameter detection device for seamless steel pipe manufacturing according to the present invention;

[0021] Figure 3 Internal structure cross-sectional view of an outer diameter detection device for seamless steel pipe manufacturing according to the present invention;

[0022] Figure 4 Schematic diagram of the detection and installation part structure according to the present invention;

[0023] Figure 5 Schematic diagram of the floating support part structure according to the present invention;

[0024] Figure 6 According to the present invention Figure 3 Enlarged view of the structure of area C in;

[0025] Figure 7 According to the present invention Figure 1 Enlarged view of the structure of area D in;

[0026] Figure 8 Schematic diagram of the fitting detection part structure according to the present invention;

[0027] Figure 9 Internal structure cross-sectional view of the moving connection part according to the present invention;

[0028] Figure 10 According to the present invention Figure 9 Enlarged view of the structure of area F in;

[0029] Figure 11 Schematic diagram of the flatness control part structure according to the present invention.

[0030] In the figure: 1. Detection and installation part; 101. Detection and installation frame; 1011. Rectangular switch; 102. Propulsion control screw rod; 103. Driving motor; 2. Floating support part; 201. Floating connection lifting column; 202. Support arc block; 203. Floating spring; 204. Electromagnet; 3. Local contraction control part; 301. Swing control arm; 3011. Swing control groove; 302. Contraction electromagnet; 4. Moving detection part; 401. Moving detection slider; 402. Electric connection elastic sheet; 5. Moving connection part; 501. Moving connection frame; 5011. Warning lamp; 502. Rotary ring; 503. Positioning shaft; 504. Straightness laser measuring instrument; 6. Fitting detection part; 601. Fitting column; 602. Fitting spring; 603. Fitting piece; 604. Detection arm; 605. Laser rangefinder; 7. Flatness control part; 701. Cleaning motor; 7011. Roller frame; 702. Cleaning sand roller; 703. Fitting elastic sheet; 704. Electric connection fixing piece. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment 1: Please refer to Figures 1-11 as shown in

[0033] The present invention provides a technical solution: an outer diameter detection device for seamless steel pipe manufacturing, including a detection mounting member 1, on which a floating support member 2 is mounted, and the floating support member 2 is used for elastically supporting the seamless steel pipe; a local contraction control member 3 is mounted at the bottom of the detection mounting member 1; the local contraction control member 3 is used to control the lifting of the floating support member 2; a moving detection member 4 is mounted on the detection mounting member 1; the detection mounting member 1 is used to control the local contraction control member 3; a moving connection member 5 is mounted on the moving detection member 4; two fitting detection members 6 are mounted on the moving connection member 5; the two fitting detection members 6 are used to detect the diameter of the seamless steel pipe; a leveling control member 7 is mounted on the detection mounting member 1; the leveling control member 7 is used to ensure the diameter detection accuracy; the detection mounting member 1 includes: a detection mounting frame 101 and a rectangular switch 1011, and a row of rectangular switches 1011 is fixedly mounted on the detection mounting frame 101; two rows of slot holes are provided at the bottom of the detection mounting frame 101.

[0034] The detection mounting member 1 further comprises: a propulsion control screw rod 102 and a drive motor 103. Two propulsion control screw rods 102 are rotatably mounted on the detection mounting frame 101; two drive motors 103 are fixedly mounted on the detection mounting frame 101, and the output shafts of the two drive motors 103 are respectively fixedly mounted on the propulsion control screw rod 102; the floating support member 2 comprises: a floating connection lifting column 201, a supporting arc block 202, a floating spring 203 and an electromagnet 204. The floating connection lifting column 201 is a hexagonal column structure; the floating support member 204 comprises: a floating connection lifting column 201, a supporting arc block 202, a floating spring 203 and an electromagnet 204. The floating connection lifting column 201 is a hexagonal column structure; A row of dynamic connection lifting columns 201 is provided, and a row of floating connection lifting columns 201 has the same structure; the outer ring at the bottom of a row of floating connection lifting columns 201 is a convex structure; a row of floating connection lifting columns 201 are respectively slidably plugged into the detection mounting frame 101; a row of floating connection lifting columns 201 are respectively threadedly connected with supporting arc blocks 202; a row of supporting arc blocks 202 are respectively arc structures; a row of floating connection lifting columns 201 are respectively sleeved with floating springs 203; a row of floating springs 203 are respectively located on the detection mounting frame 101 1 and the supporting arc block 202; a row of supporting arc blocks 202 are respectively embedded with electromagnets 204; the electromagnets 204 on a row of supporting arc blocks 202 are respectively used for magnetically attracting seamless steel pipes; the local contraction control part 3 includes: a swing control arm 301, a swing control groove 3011 and a contraction electromagnet 302, the swing control arm 301 is provided with a row, and a row of swing control arms 301 are respectively rotatably mounted on the detection mounting frame 101; the swing control arm 301 is an iron structure; a swing control groove 3011 is provided on the swing control arm 301; the swing control groove 3011 is sleeved on the floating connection lifting column 201; the swing control arm 301 is used to move the floating connection lifting column 201 downward; a row of contraction electromagnets 302 are fixedly installed at the bottom of the detection mounting frame 101, and a row of contraction electromagnets 302 are respectively used for magnetically attracting the tails of a row of swing control arms 301; a row of contraction electromagnets 302 are respectively electrically connected to a row of rectangular switches 1011, and a local contraction control is adopted Part 3 can cooperate with the floating support part 2 to realize automatic elastic support of the seamless steel pipe, which can be more suitable for the detection of longer seamless steel pipes. The row of floating springs 203 adopted in this structure can adapt to the curvature of the seamless steel pipe, and can avoid the problem that when the traditional roller frame supports the seamless steel pipe, the steel pipe will be easily deformed again under the rigid support of a row of rollers, thereby affecting the measurement accuracy of the seamless steel pipe. At the same time, this structure does not require manual operation to rotate the seamless steel pipe, which is more labor-saving. The seamless steel pipe is directly placed on the supporting arc block 202 and is magnetically connected through the electromagnet 204. At the same time, a row of floating springs 203 can be adapted according to the curvature of the seamless steel pipe, and will not cause rigid support, thereby ensuring the restoration degree of the seamless steel pipe after support by this structure, and avoiding the problem that when the curved seamless steel pipe is directly placed on the traditional roller support, the steel pipe is easily subjected to stress deformation, and the data deviates from the normal size of the seamless steel pipe during subsequent diameter and straightness detection. This structure is simple to control and easy to operate.

[0035] Among them, the movement detection member 4 includes a movement detection slider 401 and an electricity-connecting elastic sheet 402. Two movement detection sliders 401 are slidably mounted on the detection mounting frame 101; an electricity-connecting elastic sheet 402 is fixedly mounted on the movement detection slider 401 located on one side of the rectangular switch 1011; the electromagnet 204 and the electricity-connecting elastic sheet 402 are electrically connected to the rectangular switch 1011; the movement detection slider 401 is threadedly connected to the propulsion control lead screw 102; the movement detection member 4 can cooperate with the local contraction control member 3 to automatically control the downward movement of the floating connection lifting column 201 and can automatically control the avoidance of the movement connection member 5, ensuring the coherence of the outer diameter detection of this structure, enabling continuous measurement work, avoiding jamming, and at the same time, without manual control, under the drive of the drive motor 103, it can drive the movement detection slider 401 to move, and then control the movement of the movement connection member 5. As the distance between the straightness laser measuring instrument 504 and the outer side of the seamless steel pipe is detected, the electricity-connecting elastic sheet 402 will move and fit on the rectangular switch 1011. As the electricity-connecting elastic sheet 402 moves, the electricity-connecting elastic sheet 402 will be in real-time contact with the rectangular switches 1011 located on both sides of the movement connection frame 501. When the rectangular switch 1011 contacts and presses the electricity-connecting elastic sheet 402, the contraction electromagnet 302 can be energized to magnetically attract the swing control arm 301, and the electromagnet 204 can be de-energized and no longer magnetically attract the seamless steel pipe. Using the lever principle, the swing control arm 301 can drive the support arc block 202 to move downward to prevent blocking the movement of the movement connection frame 501. As the movement connection frame 501 moves, the support arc blocks 202 located on both sides of it are controlled to move downward in real-time. Only controlling the support arc blocks 202 located on both sides of the movement connection frame 501 to move downward can maintain the support stability of the remaining support arc blocks 202 for the seamless steel pipe, and the structure is more reasonable.

[0036] Among them, the movable connecting piece 5 includes: a movable connecting frame 501, a warning light 5011, a rotary ring 502, a positioning shaft 503, and a straightness laser measuring instrument 504. The movable connecting frame 501 is fixedly installed on the two movable detection sliders 401 by bolts; two warning lights 5011 are fixedly installed on the movable connecting frame 501; the rotary ring 502 is slidably sleeved on the movable connecting frame 501; a circle of jacks is provided on the side of the rotary ring 502; the positioning shaft 503 is slidably sleeved on the movable connecting frame 501, and a tension spring is sleeved on the positioning shaft 503; the tension spring sleeved on the positioning shaft 503 is connected between the movable connecting frame 501 and the positioning shaft 503; the straightness laser measuring instrument 504 is fixedly installed inside the rotary ring 502, and the straightness laser measuring instrument 504 is used to measure the straightness of the seamless steel pipe; the positioning shaft 503 is inserted into the rotary ring 502; the fitting detection piece 6 includes a fitting column 601 and a fitting spring 602. There are two fitting columns 601, and the two fitting columns 601 are respectively slidably installed on the rotary ring 502; the two fitting columns 601 are respectively hexagonal column structures; the two fitting columns 601 are respectively sleeved with fitting springs 602 inside; the ends of the two fitting springs 602 are respectively connected to the fitting columns 601, and the other ends of the two fitting springs 602 are respectively fixedly installed inside the rotary ring 502; the fitting detection piece 6 further includes: a fitting piece 603, a detection arm 604, and a laser rangefinder 605. The IL-030 type straightness laser measuring instrument 504 and the laser rangefinder 605 can be used and a supporting display is used. The fitting pieces 603 are fixedly installed on the two fitting columns 601; the two fitting pieces 603 are used to fit the outer wall of the seamless steel pipe; the detection arms 604 are respectively fixedly installed on the two fitting pieces 603, and the laser rangefinder 605 is fixedly installed on the front detection arm 604; the two detection arms 604 are aligned. The fitting detection piece 6 can be used to detect the diameter of the steel pipe and the straightness of the outside of the steel pipe at the same time. The operation is simple and fast. While improving the detection efficiency, the fitting piece 603 can be attached to the outer wall of the steel pipe, which is not affected by the position of the steel pipe, further ensuring the detection accuracy. The detection of this structure is direct. At the same time, during the process of using the straightness laser measuring instrument 504 to detect the outer wall of the pipe wall multiple times, the pipe will not shake or displace, ensuring the detection accuracy. During the process of the movable connecting frame 501 being driven to move, the straightness laser measuring instrument 504 can use the laser to detect the distance from the pipe wall in real time. If the distances are the same, it means that the straightness of the pipe meets the standard. After the detection of the pipe wall from beginning to end is completed, the positioning shaft 503 can be pulled out to rotate the rotary ring 502, adjust the angle, and then insert the positioning shaft 503 into the rotary ring 502 for positioning to conduct a comprehensive detection.

[0037] Embodiment 2. On the basis of Embodiment 1, the flattening control member 7 includes: a cleaning motor 701, a roller frame 7011, and a cleaning sand roller 702. The roller frame 7011 is fixedly installed on the bonding piece 603; the cleaning motor 701 is fixedly installed on the roller frame 7011; the output shaft of the cleaning motor 701 is fixedly installed with the cleaning sand roller 702, and the cleaning sand roller 702 is rotatably installed on the roller frame 7011; the outer side of the cleaning sand roller 702 is flush with the inner side of the bonding piece 603; the flattening control member 7 further includes: a bonding elastic piece 703 and a power connection fixing piece 704. The bonding elastic pieces 703 are respectively fixedly installed on both sides of the bonding piece 603; the two bonding elastic pieces 703 are respectively of an arc structure; the two bonding elastic pieces 703 are respectively used for elastically bonding to the seamless steel pipe; the power connection fixing pieces 704 are respectively fixedly installed on both sides of the bonding piece 603, and the two power connection fixing pieces 704 are respectively used for abutting against the bonding elastic pieces 703; the bonding elastic piece 703, the power connection fixing piece 704, and the indicator lamp 5011 are connected in series to the power supply. By using the flattening control member 7, the detection work of the flatness can be automatically realized, avoiding the influence of factors such as local peeling on the outer diameter detection accuracy without being detected. The detection of this structure is direct. The cleaning sand roller 702 can be used to clean and polish small protrusions such as peeling, which can avoid affecting the detection accuracy. At the same time, this structure can be in real-time contact with the pipe wall through the bonding elastic piece 703, avoiding the situation that the cleaning sand roller 702 does not completely grind flat small protrusions such as peeling, and then the bonding piece 603 is used to contact the polished area for diameter detection. This structure does not require manual observation of the grinding situation of the cleaning sand roller 702, which is more accurate and direct. The cleaning sand roller 702 can continuously grind impurities such as iron filings on the protrusions. However, if the moving connecting frame 501 moves too fast and the peeling is not completely ground flat, the bonding elastic piece 703 will still contact the pipe wall under the action of the elastic force. At this time, the bonding elastic piece 703 will be separated from the power connection fixing piece 704, and the corresponding indicator lamp 5011 will turn off to give a prompt, avoiding continuously recording incorrect values. Through the prompt method, it is convenient for the staff to make re-grinding and other treatment methods for the problem area.

[0038] Working principle of this embodiment: First, pass the two rows of slot holes at the bottom of the detection mounting frame 101 through bolts and install them on the ground. Place the seamless steel pipe directly on the supporting arc-shaped block 202 and magnetically connect it through the electromagnet 204. At the same time, a row of floating springs 203 can be adapted according to the curvature of the seamless steel pipe. Driven by the drive motor 103, the moving detection slider 401 can be driven to move, thereby controlling the movement of the moving connecting piece 5. As the straightness laser measuring instrument 504 moves to detect the distance from the outer side of the seamless steel pipe, the power-on elastic piece 402 will move and fit on the rectangular switch 1011. As the power-on elastic piece 402 moves, the power-on elastic piece 402 will always fit on the rectangular switches 1011 located on both sides of the moving connecting frame 501. When the rectangular switch 1011 contacts and presses the power-on elastic piece 402, the retractable electromagnet 302 can be energized to magnetically attract the swing control arm 301, and the electromagnet 204 can be powered off and no longer magnetically attract the seamless steel pipe. Using the lever principle, the front side of the swing control arm 301 will pull down the floating connection lifting column 201 through the swing control groove 3011, driving the supporting arc-shaped block 202 to move downward to prevent blocking the movement of the moving connecting frame 501; during the process of driving the moving connecting frame 501 to move, the straightness laser measuring instrument 504 can continuously use the laser to detect the distance from the pipe wall. If the distances are the same, it means that the pipe straightness meets the standard. After the detection of the pipe wall is completed from start to finish, the positioning shaft 503 can be pulled out to rotate the rotary ring 502, adjust the angle, and then insert the positioning shaft 503 into the rotary ring 502 for positioning to achieve a comprehensive detection of multiple positions on the outer side of the seamless steel pipe. During this process, under the extrusion of the fitting spring 602, the fitting piece 603 always fits on both sides of the pipe wall for diameter measurement. The laser rangefinder 605 measures the change in the distance from it to the opposite detection arm 604, and the change in the diameter of the steel pipe can be obtained. The detection results of the laser rangefinder 605 and the straightness laser measuring instrument 504 can be intuitively displayed through an external display; when the moving connecting frame 501 moves, it drives the cleaning sand roller 702 to move together. During the process, driven by the cleaning motor 701 in real time, the cleaning sand roller 702 can continuously polish the raised iron filings and other impurities. However, if the moving speed of the moving connecting frame 501 is too fast and the peeling is not completely ground flat, at this time the fitting piece 603 will slide over the fitting piece 603. At this time, the fitting piece 603 will be lifted by the peeling, but the fitting elastic piece 703 will still fit on the pipe wall under the action of the elastic force. At this time, the fitting elastic piece 703 will separate from the power-on fixing piece 704, and the corresponding indicator light 5011 will turn off to give a prompt to avoid continuously recording incorrect values.

[0039] It should be noted that in this text, relational 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 actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An outer diameter detection device for seamless steel pipe manufacturing, comprising a detection mounting member (1), on which a floating support member (2) is mounted, characterized in that: The floating support (2) is used to elastically support the seamless steel pipe; a local contraction control member (3) is installed at the bottom of the detection installation member (1); the local contraction control member (3) is used to control the lifting and lowering of the floating support (2); A moving detection component (4) is mounted on the detection mounting component (1); the detection mounting component (1) is used to control the local contraction control component (3); The movable detection member (4) is provided with a movable connection member (5); the movable connection member (5) is provided with two fitting detection members (6); the two fitting detection members (6) are used to detect the diameter of the seamless steel pipe; A flattening control member (7) is installed on the detection mounting member (1); the flattening control member (7) is used to ensure the diameter detection accuracy; The detection mounting member (1) comprises: a detection mounting frame (101) and rectangular switches (1011); a row of rectangular switches (1011) is fixedly mounted on the detection mounting frame (101); and two rows of slots are provided at the bottom of the detection mounting frame (101).

2. The outer diameter detection device for seamless steel pipe manufacturing according to claim 1, characterized in that: The detection mounting member (1) further comprises: a propulsion control screw rod (102) and a drive motor (103); two propulsion control screw rods (102) are rotatably mounted on the detection mounting frame (101); two drive motors (103) are fixedly mounted on the detection mounting frame (101), and the output shafts of the two drive motors (103) are respectively fixedly mounted on the propulsion control screw rods (102).

3. The outer diameter detection device for seamless steel pipe manufacturing according to claim 2, characterized in that: The floating support member (2) comprises: a floating connection lifting column (201), a supporting arc block (202), a floating spring (203) and an electromagnet (204); the floating connection lifting column (201) is a hexagonal column structure; the floating connection lifting column (201) is provided in a row, and the structures on the floating connection lifting columns (201) in the row are the same; the outer ring at the bottom of the floating connection lifting columns (201) in the row is a convex structure; the floating connection lifting columns (201) in the row are respectively slidably plugged into the detection mounting frame (101); the supporting arc blocks (202) in the row are respectively threadedly connected; the supporting arc blocks (202) in the row are respectively arc structures; the floating springs (203) in the row are respectively sleeved on the floating connection lifting columns (201); the floating springs (203) in the row are respectively located on the detection mounting frame (101); 1) between the supporting arc blocks (202); electromagnets (204) are respectively embedded on a row of the supporting arc blocks (202); the electromagnets (204) on a row of the supporting arc blocks (202) are respectively used for magnetically attracting seamless steel pipes.

4. The outer diameter detection device for seamless steel pipe manufacturing according to claim 3, characterized in that: The local contraction control component (3) comprises: a swing control arm (301), a swing control slot (3011) and a contraction electromagnet (302); the swing control arm (301) is provided with a row, and the row of swing control arms (301) are respectively rotatably mounted on the detection mounting frame (101); the swing control arm (301) is an iron structure; the swing control slot (3011) is provided on the swing control arm (301); the swing control slot (3011) is sleeved on the floating connection lifting column (201); the swing control arm (301) is used to move the floating connection lifting column (201) downward; a row of contraction electromagnets (302) is fixedly mounted on the bottom of the detection mounting frame (101), and the row of contraction electromagnets (302) are respectively used to magnetically attract the tails of the row of swing control arms (301); and the row of contraction electromagnets (302) are respectively electrically connected to a row of rectangular switches (1011).

5. The outer diameter detection device for seamless steel pipe manufacturing according to claim 3, characterized in that: The movement detection member (4) comprises: a movement detection slider (401) and an electrical connection spring sheet (402); two movement detection sliders (401) are slidably mounted on the detection mounting frame (101); the electrical connection spring sheet (402) is fixedly mounted on the movement detection slider (401) located on one side of the rectangular switch (1011); the electromagnet (204) and the electrical connection spring sheet (402) are electrically connected to the rectangular switch (1011); and the movement detection slider (401) is threadedly connected to the propulsion control screw rod (102).

6. The outer diameter detection device for seamless steel pipe manufacturing according to claim 5, characterized in that: The movable connecting member (5) comprises: a movable connecting frame (501), a warning light (5011), a slewing ring (502), a positioning shaft (503) and a straightness laser measuring instrument (504); the movable connecting frame (501) is fixedly mounted on two movable detection sliders (401) by means of bolts; two warning lights (5011) are fixedly mounted on the movable connecting frame (501); a slewing ring (502) is slidably sleeved on the movable connecting frame (501); a side of the slewing ring (502) is provided. A circle of jacks is provided on the surface; a positioning shaft (503) is slidably sleeved on the movable connecting frame (501), and a tension spring is sleeved on the positioning shaft (503); the tension spring sleeved on the positioning shaft (503) is connected between the movable connecting frame (501) and the positioning shaft (503); a straightness laser measuring instrument (504) is fixedly installed on the inner side of the rotating ring (502), and the straightness laser measuring instrument (504) is used to measure the straightness of the seamless steel pipe; the positioning shaft (503) is inserted into the rotating ring (502).

7. The outer diameter detection device for seamless steel pipe manufacturing according to claim 6, characterized in that: The fitting detection component (6) comprises: a fitting column (601) and a fitting spring (602), wherein two fitting columns (601) are provided, and the two fitting columns (601) are respectively slidably mounted on the rotating ring (502); the two fitting columns (601) are respectively hexagonal column structures; the fitting springs (602) are respectively sleeved inside the two fitting columns (601); the ends of the two fitting springs (602) are respectively connected to the fitting columns (601), and the other ends of the two fitting springs (602) are respectively fixedly mounted on the inner side of the rotating ring (502).

8. The outer diameter detection device for seamless steel pipe manufacturing according to claim 7, characterized in that: The bonding detection component (6) further comprises: a bonding sheet (603), a detection arm (604) and a laser rangefinder (605); the bonding sheets (603) are fixedly mounted on the two bonding columns (601); the two bonding sheets (603) are used to bond to the outer wall of the seamless steel pipe; the two bonding sheets (603) are respectively fixedly mounted with detection arms (604), and the front detection arm (604) is fixedly mounted with the laser rangefinder (605); the two detection arms (604) are aligned.

9. The outer diameter detection device for seamless steel pipe manufacturing according to claim 8, characterized in that: The leveling control component (7) comprises: a cleaning motor (701), a roller frame (7011) and a cleaning sand roller (702); the roller frame (7011) is fixedly mounted on the bonding sheet (603); the cleaning motor (701) is fixedly mounted on the roller frame (7011); the cleaning sand roller (702) is fixedly mounted on the output shaft of the cleaning motor (701), and the cleaning sand roller (702) is rotatably mounted on the roller frame (7011); the outer side of the cleaning sand roller (702) is flush with the inner side of the bonding sheet (603).

10. The outer diameter detection device for seamless steel pipe manufacturing according to claim 9, characterized in that: The flattening control member (7) further comprises: a fitting spring sheet (703) and an electrical connection fixing sheet (704), wherein the fitting spring sheets (703) are respectively fixedly mounted on both sides of the fitting sheet (603); the two fitting spring sheets (703) are respectively arc-shaped structures; the two fitting spring sheets (703) are respectively used to elastically fit the seamless steel pipe; the electrical connection fixing sheets (704) are respectively fixedly mounted on both sides of the fitting sheet (603), and the two electrical connection fixing sheets (704) are respectively used to abut against the fitting spring sheets (703); the fitting spring sheet (703), the electrical connection fixing sheet (704) and the indication light (5011) are connected in series to a power supply.

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