A device for measuring straightness of seamless steel pipe

Abstract

The application provides a special straightening degree measuring device for seamless steel pipes, and relates to the technical field of seamless steel pipe processing. The device comprises a workbench, support bases are arranged on the left and right sides of the top of the workbench, a moving frame is arranged on the workbench, an installation frame is arranged in the moving frame and located above the workbench, and two support frame plates are arranged on the front part of the installation frame. The positions of the straightening detectors and the support frame plates can be adjusted, the detection and straightening ranges of the seamless steel pipe body are increased, the production quality of the product is improved, the device does not need to be provided with multiple sets of straightening detectors and support frame plates, the manufacturing cost of the equipment is effectively reduced, the installation positions of the straightening detectors and the support frames on the bottom of the seamless steel pipe in the device are fixed, the detection and straightening ranges are poor, the structure of the seamless steel pipe is relatively long as a whole, multiple sets of straightening detectors, support frames and push air cylinders are installed on the bottom, and the manufacturing cost of the equipment is high.

Description

Technical Field

[0001] This invention relates to the field of seamless steel pipe processing technology, and in particular to a special straightening measurement device for seamless steel pipes. Background Technology

[0002] Seamless steel pipe is a long strip of steel with a hollow cross-section and no seams around its perimeter. Seamless steel pipe is rolled using methods including hot rolling, hot extrusion, and cold drawing. Hot-rolled seamless steel pipes always have longitudinal bending and roundness errors, which need to be eliminated through a straightening process. During the straightening process, if the straightening machine is properly adjusted, the longitudinal bending and roundness errors of the seamless steel pipe can be eliminated, and its mechanical properties can be appropriately improved.

[0003] Existing straightening measurement devices for seamless steel pipes have limited detection and straightening range due to the fixed installation positions of the straightening detector and the support frame at the bottom of the seamless steel pipe. Furthermore, the long overall structure of the seamless steel pipe necessitates the installation of multiple straightening detectors, support frames, and pushing cylinders at its bottom, resulting in high manufacturing costs. Additionally, the need for multiple cylinders to operate the straightening pressure plate and bottom support frame makes the operation cumbersome and time-consuming. Moreover, the large curvature of the seamless steel pipe makes it prone to strong collisions with the sensing contacts, causing the sensing contact's detection position to shift and affecting the accuracy of the detection. Summary of the Invention

[0004] In view of this, the present invention provides a special straightening measurement device for seamless steel pipes to solve the problems of fixed installation positions of the straightening detector and the support frame at the bottom of the seamless steel pipe, resulting in poor detection and straightening range; the long overall structure of the seamless steel pipe, requiring multiple sets of straightening detectors, support frames, and pushing cylinders to be installed at its bottom, leading to high manufacturing costs; the need for multiple sets of cylinders to push the straightening pressure plate and the bottom support frame, making the operation cumbersome and the straightening process time-consuming; and the large curvature of the seamless steel pipe, which easily collides strongly with the sensing contact, causing the sensing contact detection position to shift and affecting the accuracy of the detection.

[0005] This invention provides a straightening measurement device for seamless steel pipes, specifically comprising: a workbench with supporting bases on the left and right sides of the top of the workbench; a movable frame on the workbench; an installation frame inside the movable frame, located above the workbench; two supporting plates at the front of the installation frame, symmetrically distributed; a straightening pressure plate at the front of the installation frame, positioned slightly above the two supporting plates; a third motor at the middle of the left end of the installation frame; a straightening detector at the front of the installation frame, located below the straightening pressure plate; and the two supporting bases symmetrically distributed, with the seamless steel pipe body positioned between the tops of the two supporting bases.

[0006] Furthermore, guiding sliding grooves are provided at the front and rear ends of the workbench, and a fixed base is provided at the bottom of the workbench. The fixed base is of a "C" - shaped structure, and an adjusting screw rod is rotatably installed between the two vertical frames of the fixed base through bearings. A first motor is provided at the right end of the fixed base, and the rotating shaft of the first motor is connected to the adjusting screw rod.

[0007] Furthermore, a limiting sleeve is provided at the top of the supporting base. Two rotating rollers are provided on both the left and right supporting bases, and the rotating shafts of the rotating rollers are rotatably connected to the supporting base through bearings. The seamless steel pipe body is arranged on the limiting sleeve, and the rotating rollers are in rolling connection with the seamless steel pipe body. An adjusting screw rod is provided at the top of the supporting base, and an adjusting frame is provided on the adjusting screw rod. Two pressing wheels are rotatably installed on the adjusting frame, and the pressing wheels are in rolling connection with the seamless steel pipe body. Driven pulleys are provided at the rotating ends of the two rotating rollers on the right side, and the two driven pulleys are connected by a belt. A second motor is provided at the front end of the right - hand supporting base, and a driving pulley is provided on the rotating shaft of the second motor, and the driving pulley is connected to the driven pulley by a belt.

[0008] Furthermore, the moving frame is of a rectangular frame structure, and guiding pulleys are provided at the left and right ends of the two vertical plates of the moving frame, and the guiding pulleys are in rolling connection with the guiding sliding grooves of the workbench. A threaded sleeve is provided at the bottom of the bottom plate of the moving frame, and the threaded sleeve is slidably sleeved on the adjusting screw rod by means of threads. A straightening hydraulic cylinder is provided at the bottom of the top plate of the moving frame, and a docking groove is provided at the bottom end of the telescopic column of the straightening hydraulic cylinder.

[0009] Furthermore, the mounting frame is of a rectangular cavity structure, and a back plate is provided at the rear of the mounting frame. Four connecting columns are provided at the rear end of the back plate, and the connecting columns are fixedly connected to the rear vertical plate of the moving frame. A first limiting groove is provided at the middle position of the front end of the back plate. Three through - slots are provided on the front plate of the mounting frame. A second limiting groove is provided on the inner wall of the front plate of the mounting frame, and the second limiting groove corresponds to the first limiting groove. A supporting bottom plate is provided at the bottom of the front end of the mounting frame. Two supporting columns are provided at the top of the supporting bottom plate, and the two supporting columns are symmetrically distributed. A buffer spring is provided at the top of the supporting column, and the buffer spring supports the bottom of the supporting frame plate.

[0010] Furthermore, a connecting frame is provided between the rear parts of the two supporting frame plates. The connecting frame is of a "C" - shaped structure, and the two short rectangular rods of the connecting frame are slidably connected to the mounting frame through the through - slots. A first toothed plate is provided at the middle position of the rear end of the connecting frame, and a first limiting block is provided at the rear end of the first toothed plate, and the first toothed plate is slidably connected to the first limiting groove through the first limiting block.

[0011] Furthermore, the top of the straightening plate is provided with a support block, and the support block matches the docking groove. A limiting sleeve is slidably mounted on the straightening plate, and a second toothed plate is provided at the rear end of the limiting sleeve. The second toothed plate and the first toothed plate are distributed in a front-to-back symmetrical manner. A second limiting block is provided at the front end of the second toothed plate, and the second toothed plate is slidably connected to the second limiting groove through the second limiting block.

[0012] Furthermore, the support block has limiting cylinders on both the front and rear sides at the bottom, and compression springs are fitted on the limiting cylinders. The limiting cylinders are slidably inserted into the limiting sleeve, and the compression springs are supported between the limiting sleeve and the support block.

[0013] Furthermore, the third motor has a rotating shaft on its rotating shaft, and the rotating shaft is rotatably mounted in the cavity of the mounting bracket through a bearing. A gear is provided in the middle of the rotating shaft, and the gear meshes with the second gear plate and the first gear plate.

[0014] Furthermore, the straightening detector is equipped with a rotating column, which is rotatably connected to the straightening detector through a bearing seat. A sensing contact is provided at the top of the outer circumference of the rotating column, and the sensing contact is in contact with the seamless steel pipe body. A positioning column is provided at the rear of the rotating column. A limiting ring is provided at the top of the straightening detector, and the limiting ring is a half-ring structure. Two restoring springs are fitted on the limiting ring. The limiting ring slides through the positioning column, and the two restoring springs are respectively supported between the positioning column and the straightening detector.

[0015] Beneficial effects

[0016] 1. This device is powered by a first motor. The moving frame is driven by the adjusting screw to move the mounting frame and slide left and right along the guide slide. Both support plates and straightening detectors are set on the mounting frame. Since the positions of the straightening detectors and support plates can be adjusted, the detection and straightening range of the seamless steel pipe body is increased, improving the production quality of the product. Moreover, this device does not require multiple sets of straightening detectors and support plates, thus effectively reducing the manufacturing cost of the equipment.

[0017] 2. This device is powered by a third motor and uses gears to drive the second and first toothed plates, simultaneously driving the two support plates and the straightening pressure plate to converge towards the center. At the same time, the telescopic column of the straightening hydraulic cylinder pushes downwards, and after docking with the support block through the docking groove, it pushes the straightening pressure plate to slide downwards along the limit sleeve. The straightening pressure plate presses down to complete the straightening process of the seamless steel pipe body. Moreover, through mechanical transmission, the upward support action of the support plate and the clamping and pressing action of the straightening pressure plate are linked together in sequence and performed in one go, eliminating the trouble of step-by-step operation and effectively improving the production efficiency of the equipment.

[0018] 3. When the straightening detector moves left and right to detect the longitudinal bending and roundness error of the seamless steel pipe body, due to the large curvature of the seamless steel pipe body, after contacting the sensing contact, the rotating column can drive the sensing contact to deflect left and right. At the same time, with the two restoring springs on the limit ring pulling left and right downwards, the rotating column and the sensing contact can be restored to their initial state, effectively ensuring that the sensing contact is more stable during operation and use, thereby improving the accuracy of detection. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the overall axial view structure of an embodiment of the present invention.

[0023] Figure 2 This is an embodiment of the present invention. Figure 1 A schematic diagram of the rotating perspective structure.

[0024] Figure 3 This is a schematic diagram of the support base structure according to an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the mobile frame structure according to an embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the mounting frame, support plate, straightening pressure plate, and third motor structure according to an embodiment of the present invention.

[0027] Figure 6 This is an embodiment of the present invention. Figure 5 A schematic diagram of the exploded state of the mounting bracket.

[0028] Figure 7 This is a schematic diagram of the support frame plate, straightening pressure plate, and third motor in an exploded state according to an embodiment of the present invention.

[0029] Figure 8 This is a schematic diagram of the straightening detector structure according to an embodiment of the present invention.

[0030] List of reference numerals

[0031] 1. Workbench; 101. Guide groove; 102. Fixed base; 103. Adjusting screw; 104. First motor; 2. Support base; 201. Limiting sleeve; 202. Rotating roller; 203. Adjusting screw; 204. Adjusting frame; 205. Lower pressure roller; 206. Driven pulley; 207. Second motor; 208. Driving pulley; 3. Moving frame; 301. Guide pulley; 302. Threaded sleeve; 303. Straightening hydraulic cylinder; 304. Connecting groove; 4. Mounting frame; 401. Back plate; 402. Connecting column; 403. First limiting groove; 404. Through groove; 405. Second limiting groove 406. Support base plate; 407. Support column; 408. Buffer spring; 5. Support frame plate; 501. Connecting frame; 502. First toothed plate; 503. First limiting block; 6. Straightening pressure plate; 601. Support block; 6011. Limiting cylinder; 6012. Compression spring; 602. Limiting sleeve; 603. Second toothed plate; 604. Second limiting block; 7. Third motor; 701. Rotating shaft; 702. Gear; 8. Straightening detector; 801. Rotating column; 802. Sensing contact; 803. Positioning column; 804. Limiting ring; 805. Restoring spring; 9. Seamless steel pipe body. Detailed Implementation

[0032] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0033] Example: Please refer to Figures 1 to 8 As shown:

[0034] This invention provides a straightening measurement device for seamless steel pipes, comprising a workbench 1, with support bases 2 on the left and right sides of the top of the workbench 1; a movable frame 3 on the workbench 1; an installation frame 4 inside the movable frame 3, and the installation frame 4 being located above the workbench 1; two support plates 5 at the front of the installation frame 4, which are symmetrically distributed from left to right; a straightening pressure plate 6 at the front of the installation frame 4, located between the two support plates 5 and slightly above; a third motor 7 at the middle of the left end of the installation frame 4; a straightening detector 8 at the front of the installation frame 4, located below the straightening pressure plate 6; and a seamless steel pipe body 9 between the tops of the two support bases 2, which are symmetrically distributed from left to right.

[0035] Among them, a limit sleeve 201 is provided at the top of the support base 2. There are two rotating rollers 202 provided on the left and right support bases 2 respectively, and the rotating shaft of the rotating roller 202 is rotatably connected to the support base 2 through a bearing. The seamless steel pipe body 9 is arranged on the limit sleeve 201, and the rotating roller 202 is in rolling connection with the seamless steel pipe body 9. An adjusting screw 203 is provided at the top of the support base 2, and an adjusting frame 204 is provided on the adjusting screw 203. Two pressing wheels 205 are rotatably installed on the adjusting frame 204, and the pressing wheels 205 are in rolling connection with the seamless steel pipe body 9. Driven belt wheels 206 are provided at the rotating ends of the two rotating rollers 202 on the right side, and the two driven belt wheels 206 are connected by belt drive. A second motor 207 is provided at the front end of the right support base 2, and a driving belt wheel 208 is provided on the rotating shaft of the second motor 207, and the driving belt wheel 208 is in belt drive connection with the driven belt wheel 206. This device is powered by the second motor 207, and the two rotating rollers 202 on the right side are driven to rotate by belt drive, which can drive the seamless steel pipe body 9 to rotate on its own axis, cooperate with the straightening detector 8 to detect its longitudinal bending and roundness error, and use the support frame plate 5, the straightening pressing plate 6 and the straightening hydraulic cylinder 303 for straightening.

[0036] Among them, guide chutes 101 are provided at the front and rear ends of the workbench 1. A fixed base 102 is provided at the bottom of the workbench 1. The fixed base 102 is of a "C" - shaped structure, and an adjusting screw rod 103 is rotatably installed between the two vertical frames of the fixed base 102 through a bearing. A first motor 104 is provided at the right end of the fixed base 102, and the rotating shaft of the first motor 104 is connected to the adjusting screw rod 103;

[0037] The moving frame 3 is of a rectangular frame structure. Guide pulleys 301 are provided at the left and right ends of the two vertical plates of the moving frame 3, and the guide pulleys 301 are in rolling connection with the guide chutes 101 of the workbench 1. A threaded sleeve 302 is provided at the bottom of the bottom plate of the moving frame 3, and the threaded sleeve 302 is slidably sleeved on the adjusting screw rod 103 by means of threads. A straightening hydraulic cylinder 303 is provided at the bottom of the top plate of the moving frame 3, and a docking groove 304 is provided at the bottom end of the telescopic column of the straightening hydraulic cylinder 303. This device is powered by the first motor 104, and the moving frame 3 is driven by the adjusting screw rod 103 to drive the mounting frame 4 to slide left and right along the guide chutes 101 for adjustment. Two support frame plates 5 and a straightening detector 8 are both arranged on the mounting frame 4. Since the positions of the straightening detector 8 and the support frame plate 5 can be adjusted, the detection and straightening range of the seamless steel pipe body 9 is increased, the production quality of the product is improved, and this device does not need to set multiple groups of straightening detectors 8 and support frame plates 5, thus effectively reducing the manufacturing cost of the equipment.

[0038] Among them, the mounting bracket 4 has a rectangular cavity structure, and a back plate 401 is provided at the rear side of the mounting bracket 4. Four connecting columns 402 are provided at the rear end of the back plate 401, and the connecting columns 402 are fixedly connected to the rear vertical plate of the moving bracket 3. A first limiting groove 403 is provided at the middle position of the front end of the back plate 401. Three through grooves 404 are provided on the front plate of the mounting bracket 4. A second limiting groove 405 is provided on the inner wall of the front plate of the mounting bracket 4, and the second limiting groove 405 corresponds to the first limiting groove 403. A support bottom plate 406 is provided at the bottom of the front end of the mounting bracket 4. Two support columns 407 are provided at the top of the support bottom plate 406, and the two support columns 407 are distributed symmetrically. A buffer spring 408 is provided at the top of the support column 407, and the buffer spring 408 supports the bottom of the support frame plate 5;

[0039] A connecting frame 501 is provided between the rear parts of the two support frame plates 5. The connecting frame 501 has a "C" - shaped structure, and the two short rectangular rods of the connecting frame 501 are slidably connected to the mounting bracket 4 through the through grooves 404. A first toothed plate 502 is provided at the middle position of the rear end of the connecting frame 501, and a first limiting block 503 is provided at the rear end of the first toothed plate 502, and the first toothed plate 502 is slidably connected to the first limiting groove 403 through the first limiting block 503;

[0040] A support block 601 is provided at the top of the straightening pressing plate 6, and the support block 601 is matched with the docking groove 304. A limiting sleeve 602 is slidably sleeved on the straightening pressing plate 6. A second toothed plate 603 is provided at the rear end of the limiting sleeve 602, and the second toothed plate 603 and the first toothed plate 502 are distributed symmetrically in the front - rear direction. A second limiting block 604 is provided at the front end of the second toothed plate 603, and the second toothed plate 603 is slidably connected to the second limiting groove 405 through the second limiting block 604;

[0041] Limit cylinders 6011 are provided on the front and rear sides of the bottom of the support block 601. Compression springs 6012 are sleeved on the limit cylinders 6011. The limit cylinders 6011 are slidably inserted into the limiting sleeve 602, and the compression springs 6012 are supported between the limiting sleeve 602 and the support block 601;

[0042] The third motor 7 has a rotating shaft 701 on its rotating shaft, and the rotating shaft 701 is rotatably mounted in the cavity of the mounting frame 4 through a bearing. A gear 702 is located in the middle of the rotating shaft 701, and the gear 702 meshes with the second toothed plate 603 and the first toothed plate 502. This device is powered by the third motor 7 and uses the gear 702 to drive the second toothed plate 603 and the first toothed plate 502 to drive the two support frame plates 5 and the straightening pressure plate 6 to converge towards the middle. At the same time, it cooperates with the telescopic column of the straightening hydraulic cylinder 303 to push downward. After docking with the support block 601 through the docking groove 304, it pushes the straightening pressure plate 6 to slide downward along the limiting sleeve 602. The straightening pressure plate 6 presses down to complete the straightening process of the seamless steel pipe body 9. Moreover, the upward support action of the support frame plate 5 and the clamping and pressing action of the straightening pressure plate 6 are linked together in sequence through mechanical transmission and performed at one time, eliminating the trouble of step-by-step operation and effectively improving the production efficiency of the equipment.

[0043] The straightening detector 8 is equipped with a rotating column 801, which is rotatably connected to the straightening detector 8 via a bearing seat. A sensing contact 802 is located on the top of the outer circumference of the rotating column 801 and contacts the seamless steel pipe body 9. A positioning column 803 is located at the rear of the rotating column 801. A limiting ring 804 is located at the top of the straightening detector 8. The limiting ring 804 has a half-ring structure and two restoring springs 805 are fitted on it. The limiting ring 804 slides through the positioning column 803, and the two restoring springs 805 are respectively supported by the positioning column 803. Between column 803 and straightening detector 8, when straightening detector 8 moves left and right to detect longitudinal bending and roundness error of seamless steel pipe body 9, due to the large curvature of seamless steel pipe body 9, after contacting sensing contact 802, rotating column 801 can drive sensing contact 802 to deflect left and right. At the same time, with the two restoring springs 805 mounted on limit ring 804 rebounding and pulling left and right, rotating column 801 and sensing contact 802 can return to the initial state, effectively ensuring that sensing contact 802 is more stable during operation, thereby improving the accuracy of detection.

[0044] The specific usage and function of this embodiment: In this invention, the first motor 104 provides power, and the adjusting screw 103 drives the moving frame 3 to move the mounting frame 4 to slide left and right along the guide slide 101. Both support plates 5 and the straightening detector 8 are set on the mounting frame 4. Since the positions of the straightening detector 8 and the support plate 5 can be adjusted, the detection and straightening range of the seamless steel pipe body 9 is increased, improving the production quality of the product. Moreover, this device does not require multiple sets of straightening detectors 8 and support plates 5, thereby effectively reducing the manufacturing cost of the equipment. The third motor 7 provides power, and the gear 702 drives the second toothed plate 603 and the first toothed plate 502 to drive the two support plates 5 and the straightening pressure plate 6 to converge towards the middle. At the same time, the telescopic column of the straightening hydraulic cylinder 303 pushes downward. After docking with the support block 601 through the docking groove 304, the straightening pressure plate is pushed. 6. Slide downwards along the limiting sleeve 602, and use the straightening pressure plate 6 to press down to complete the straightening process of the seamless steel pipe body 9. The upward support action of the support frame plate 5 and the clamping and pressing action of the straightening pressure plate 6 are linked together in sequence through mechanical transmission, which eliminates the trouble of step-by-step operation and effectively improves the production efficiency of the equipment. When the straightening detector 8 moves left and right to detect the longitudinal bending and roundness error of the seamless steel pipe body 9, due to the large bending arc of the seamless steel pipe body 9, after contacting the sensing contact 802, the rotating column 801 can drive the sensing contact 802 to deflect left and right. At the same time, with the two restoring springs 805 mounted on the limiting ring 804 rebounding and pulling left and right, the rotating column 801 and the sensing contact 802 can be restored to the initial state, which effectively ensures that the sensing contact 802 is more stable during operation and use, thereby improving the accuracy of detection.

[0045] Finally, it should be noted that when describing the position of each component and the mating relationship between them, the present invention usually uses one or a pair of components as examples. However, those skilled in the art should understand that such positions, mating relationships, etc., are also applicable to other components or other pairs of components.

[0046] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention, which is determined by the appended claims.

Claims

1. A straightening and measuring device specifically for seamless steel pipes, characterized in that: A straightening measuring device for seamless steel pipes includes: a workbench (1), with support bases (2) on the left and right sides of the top of the workbench (1); a movable frame (3) on the workbench (1); an installation frame (4) inside the movable frame (3), and the installation frame (4) is located above the workbench (1); two support plates (5) are provided at the front of the installation frame (4), and the two support plates (5) are distributed symmetrically from left to right; a straightening pressure plate (6) is provided at the front of the installation frame (4), and the straightening pressure plate (6) is located between the two support plates (5) and slightly above; a third motor (7) is provided at the middle of the left end of the installation frame (4); a straightening detector (8) is provided at the front of the installation frame (4), and the straightening detector (8) is located below the straightening pressure plate (6); the two support bases (2) are distributed symmetrically from left to right, and a seamless steel pipe body (9) is provided between the tops of the two support bases (2). The mounting frame (4) is a rectangular cavity structure, and the mounting frame (4) has a back plate (401) on the rear side. The back plate (401) has four connecting columns (402) at the rear end, and the connecting columns (402) are fixedly connected to the rear vertical plate of the movable frame (3). The back plate (401) has a first limiting groove (403) at the middle position of the front end. The front plate of the mounting frame (4) has three through grooves (404). The inner wall of the front plate of the mounting frame (4) has a second limiting groove (405), and the second limiting groove (405) corresponds to the first limiting groove (403). The bottom of the front end of the mounting frame (4) has a support base plate (406). The top of the support base plate (406) has two support columns (407), and the two support columns (407) are symmetrically distributed. The top of the support column (407) has a buffer spring (408), and the buffer spring (408) is supported on the bottom of the support frame plate (5). The top of the straightening pressure plate (6) is provided with a support block (601), and the support block (601) matches the docking groove (304) provided at the bottom of the telescopic column of the straightening hydraulic cylinder (303). A limit sleeve (602) is slidably mounted on the straightening pressure plate (6), and a second toothed plate (603) is provided at the rear end of the limit sleeve (602). The second toothed plate (603) and the first toothed plate (502) are distributed in a symmetrical manner. A second limit block (604) is provided at the front end of the second toothed plate (603), and the second toothed plate (603) is slidably connected to the second limit groove (405) through the second limit block (604). The support block (601) has a limiting cylinder (6011) on the front and rear sides of the bottom, and a compression spring (6012) is fitted on the limiting cylinder (6011). The limiting cylinder (6011) slides into the limiting sleeve (602), and the compression spring (6012) is supported between the limiting sleeve (602) and the support block (601). A rotating shaft rod (701) is provided on the rotating shaft of the third motor (7), and the rotating shaft rod (701) is rotatably installed in the cavity of the mounting bracket (4) through a bearing. A gear (702) is provided at the middle position of the rotating shaft rod (701), and the gear (702) is meshed and connected with the second toothed plate (603) and the first toothed plate (502); A connecting bracket (501) is provided between the rear parts of the two support plates (5). The connecting bracket (501) is of a "C" - shaped structure, and the two short rods of the connecting bracket (501) are slidably connected with the mounting bracket (4) through through - slots (404). A first toothed plate (502) is provided at the middle position of the rear end of the connecting bracket (501), and a first limiting block (503) is provided at the rear end of the first toothed plate (502). Moreover, the first toothed plate (502) is slidably connected with the first limiting groove (403) through the first limiting block (503); By driving the moving frame (3) to drive the mounting bracket (4) to slide left and right for adjustment, and the two support plates (5) and the straightening detector (8) are both arranged on the mounting bracket (4). Since the positions of the straightening detector (8) and the support plates (5) can be adjusted, the detection and straightening range of the seamless steel pipe body is increased.

2. The straightening and measuring device for seamless steel pipes as described in claim 1, characterized in that: Guide chutes (101) are provided at the front and rear ends of the workbench (1). A fixed base (102) is provided at the bottom of the workbench (1). The fixed base (102) is of a "C" - shaped structure, and an adjusting screw rod (103) is rotatably installed between the two vertical frames of the fixed base (102) through a bearing. A first motor (104) is provided at the right end of the fixed base (102), and the rotating shaft of the first motor (104) is connected to the adjusting screw rod (103).

3. The straightening and measuring device for seamless steel pipes as described in claim 1, characterized in that: A limiting sleeve (201) is provided at the top of the support base (2). Two rotating rollers (202) are provided on each of the left and right support bases (2), and the rotating shafts of the rotating rollers (202) are rotatably connected with the support base (2) through bearings. The seamless steel pipe body (9) is arranged on the limiting sleeve (201), and the rotating rollers (202) are in rolling connection with the seamless steel pipe body (9). An adjusting screw rod (203) is provided at the top of the support base (2), and an adjusting frame (204) is provided on the adjusting screw rod (203). Two pressing wheels (205) are rotatably installed on the adjusting frame (204), and the pressing wheels (205) are in rolling connection with the seamless steel pipe body (9). Driven pulleys (206) are provided at the rotating ends of the two rotating rollers (202) on the right side, and the two driven pulleys (206) are connected by a belt. A second motor (207) is provided at the front end of the right support base (2), and a driving pulley (208) is provided on the rotating shaft of the second motor (207). Moreover, the driving pulley (208) is connected to the driven pulley (206) by a belt.

4. The straightening and measuring device for seamless steel pipes as described in claim 2, characterized in that: The movable frame (3) is a rectangular frame structure, and guide pulleys (301) are provided at both ends of the two vertical plates of the movable frame (3). The guide pulleys (301) are rolled to the guide groove (101) of the worktable (1). The bottom plate of the movable frame (3) is provided with a threaded sleeve (302), and the threaded sleeve (302) is slidably fitted onto the adjusting screw (103) by means of threads. The bottom of the top plate of the movable frame (3) is provided with a straightening hydraulic cylinder (303).

5. The straightening and measuring device for seamless steel pipes as described in claim 1, characterized in that: The straightening detector (8) is provided with a rotating column (801), and the rotating column (801) is rotatably connected to the straightening detector (8) through a bearing seat. The top of the outer peripheral surface of the rotating column (801) is provided with a sensing contact (802), and the sensing contact (802) is in contact with the seamless steel pipe body (9). The rear part of the rotating column (801) is provided with a positioning column (803). The top of the straightening detector (8) is provided with a limiting ring (804), and the limiting ring (804) is a half-ring structure. Two restoring springs (805) are fitted on the limiting ring (804). The limiting ring (804) slides through the positioning column (803), and the two restoring springs (805) are respectively supported between the positioning column (803) and the straightening detector (8).

Images