Seamless steel tube straightening degree inspection device

Abstract

The utility model relates to the technical field of seamless steel tube processing, in particular to a seamless steel tube straightening degree inspection device which comprises an operation table, fixing frames are fixedly installed on the front, back, left and right of the top of the operation table, and first telescopic cylinders are fixedly installed on the inner sides of the two fixing frames. Rolling mechanisms are fixedly mounted at the top ends of the two first telescopic cylinders correspondingly, a seamless steel pipe body is erected between the two rolling mechanisms, a moving frame is slidably connected to the position, located between the two fixing frames, of the top of the operation table, and a first straightening assembly is fixedly connected to the bottom end of the inner side of the moving frame; second telescopic cylinders are fixedly installed at the front end and the rear end of the first straightening assembly, second straightening assemblies are fixedly installed at the top ends of the two sets of second telescopic cylinders, and compared with an existing seamless steel pipe straightening degree inspection device, the overall applicability of the seamless steel pipe straightening degree inspection device can be improved through the design.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless steel pipe processing, in particular to a seamless steel pipe straightening inspection device. Background Art

[0002] Seamless steel pipe is a long steel strip with a hollow cross-section and no seams around it. The rolling methods of seamless steel pipes are hot rolling, hot extrusion and cold drawing. There will always be longitudinal bending and roundness errors in the seamless steel pipe after hot rolling. These defects need to be eliminated through the straightening process. During the straightening process, if the straightening machine is adjusted properly, the longitudinal bending and roundness errors of the seamless steel pipe can be eliminated, and its mechanical properties can be appropriately improved.

[0003] After searching, the publication number CN115971289A provides a straightening degree measuring device for seamless steel pipes, which relates to the technical field of seamless steel pipe processing, including: a workbench, wherein the left and right sides of the top of the workbench are provided with a supporting base; a movable frame is provided on the workbench; a mounting frame is provided inside the movable frame, and the mounting frame is located above the workbench; two supporting frame plates are provided at the front of the mounting frame. Since the positions of the straightening detector and the supporting frame plate can be adjusted, the production quality of the product is improved, and the device does not need to set up multiple sets of straightening detectors and supporting frame plates, thereby effectively reducing the manufacturing cost of the equipment, and solves the problem that the installation position of the straightening detector and the supporting frame at the bottom of the seamless steel pipe in the device is fixed, and its detection and straightening range is poor. At the same time, the overall structure of the seamless steel pipe is relatively long, and its bottom will be correspondingly installed with multiple sets of straightening detectors, supporting frames and pushing cylinders, resulting in a high manufacturing cost of the equipment. At the same time, the overall structure of the seamless steel pipe is relatively long, and its bottom needs to be correspondingly installed with multiple sets, resulting in a high manufacturing cost of the equipment.

[0004] The above-mentioned special straightening measurement device for seamless steel pipes increases the detection and straightening range of the seamless steel pipe body, and there is no need to set up multiple sets of straightening detectors and support frames, thereby effectively reducing the manufacturing cost of the equipment. However, the size of its limit sleeves, support frames and straightening plates is fixed. In actual use, it can only straighten seamless steel pipes with the same outer diameter, resulting in its low applicability.

[0005] Therefore, it is particularly important to design a seamless steel pipe straightening inspection device to solve the above-mentioned defects. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model designs a seamless steel pipe straightening inspection device, which aims to solve the technical problem that the special straightening measurement device for seamless steel pipes in the prior art has low applicability.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A seamless steel pipe straightening inspection device comprises an operating table, wherein fixed frames are fixedly installed on the left and right ends of the top of the operating table, first telescopic cylinders are fixedly installed on the inner sides of two groups of the fixed frames, rolling mechanisms are fixedly installed on the top ends of the two groups of the first telescopic cylinders, a seamless steel pipe body is arranged between the two groups of the rolling mechanisms, a moving frame is slidably connected to the top of the operating table and located between the two groups of fixed frames, a first straightening assembly is fixedly connected to the bottom end of the inner side of the moving frame, second telescopic cylinders are fixedly installed on the front and rear ends of the first straightening assembly, second straightening assemblies are fixedly installed on the top ends of the two groups of the second telescopic cylinders, and a straightening detection assembly is fixedly installed on the left side of the moving frame and located above the seamless steel pipe body.

[0009] As a preferred solution of the utility model, a first motor is fixedly installed on the left side of the operating table, a screw rod is rotatably connected to the inner side of the top of the operating table, and the driving end of the first motor is fixedly connected to the left end of the screw rod, the bottom of the movable frame is threadedly connected to the screw rod through a movable seat, the front and rear ends of the bottom of the movable frame are rotatably connected to rollers, and a movable groove is opened at a position on the top of the operating table corresponding to the roller.

[0010] As a preferred solution of the utility model, the rolling mechanism includes a lifting frame fixedly mounted on the driving end of the first telescopic cylinder, a second motor is fixedly mounted on the bottom end of the inner side of the lifting frame, rollers are rotatably connected to the front and rear ends of the top of the lifting frame, and transmission wheels are fixedly mounted on the driving end of the second motor and on the left end of one group of rollers, and synchronous belts are provided on the outer sides of the two groups of transmission wheels.

[0011] As a preferred solution of the utility model, the four corners of the bottom of the lifting frame are slidably connected to the fixed frame through sliding rods, and a protective cover is fixedly installed on the left side of the lifting frame and outside the two sets of transmission wheels.

[0012] As a preferred solution of the utility model, the first straightening component and the second straightening component have the same structure, the first straightening component includes a connecting seat fixedly installed on the bottom end of the inner part of the moving frame, the second telescopic cylinder is fixedly installed on the front and rear ends of the connecting seat, a mounting seat is fixedly installed on the inner side of the connecting seat, and a straightening mold is clamped on the inner side of the mounting seat.

[0013] As a preferred solution of the utility model, the outer side of the mounting seat is rotatably connected to a limit stop frame, the left end of the limit stop frame is fixedly connected to an operating handle, and two sets of fixing sleeves are fixedly connected to the outer side of the mounting seat at a position opposite to the limit stop frame.

[0014] As a preferred solution of the utility model, the mounting seat is composed of a first clamping block and a second clamping block, a fixing pin is slidably connected between the first clamping block and the second clamping block, a spring is sleeved on the outside of the fixing pin and located inside the first clamping block, and a locking handle is rotatably connected to the front end of the fixing pin and located at the front end of the second clamping block.

[0015] As a preferred solution of the utility model, the straightening detection component includes a connecting rod fixedly installed on the left side of the moving frame, a third telescopic cylinder is fixedly installed on the front end of the connecting rod, a straightening detector is fixedly installed on the driving end of the third telescopic cylinder, and an induction contact is fixedly connected to the bottom of the straightening detector.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] In the utility model, through the coordinated design of the first straightening assembly and the second straightening assembly, when straightening the seamless steel pipe body, the lifting frame is first lowered by the first telescopic cylinder, so that the seamless steel pipe body enters the straightening die below and is supported, and then the second telescopic cylinder is started to retract to lower the entire second straightening assembly, so that the two sets of straightening dies are closed to straighten the seamless steel pipe body. When the straightening die is in use, the limit stop frame is swung by the operating handle to limit the left and right ends of the straightening die and keep them stable. At the same time, the outer side of the limit stop frame is clamped into the inner side of the fixing sleeve for fixing. When it is necessary to detect and straighten seamless steel pipe bodies of different sizes, the locking handle is first rotated outward to loosen the fixing pin under the pressure of the spring, thereby opening the first clamping block and the second clamping block to release the fixation of the straightening die. Then, it is necessary to swing the limit stop frame to release the limit of the straightening die, and the straightening die can be drawn out from the inside of the mounting seat and replaced with a straightening die of corresponding size, thereby greatly improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the rolling mechanism of the utility model from the first perspective;

[0020] Figure 3 This is a schematic diagram of the rolling mechanism of the utility model from a second viewing angle;

[0021] Figure 4 It is a schematic diagram of the structure of the first straightening assembly, the second telescopic cylinder and the second straightening assembly of the utility model;

[0022] Figure 5 for Figure 4 A magnified schematic diagram of the middle part;

[0023] Figure 6This is a cross-sectional view of the internal structure of the first straightening component of the utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the straightening detection component of the utility model.

[0025] In the figure: 1, operating table; 101, first motor; 102, screw rod; 103, moving seat; 104, roller; 105, moving groove; 2, fixed frame; 3, first telescopic cylinder; 4, rolling mechanism; 401, lifting frame; 402, second motor; 403, roller; 404, driving wheel; 405, synchronous belt; 406, sliding rod; 407, protective cover; 5, seamless steel pipe body; 6, moving frame; 7, first straightening assembly; 701, connection Seat; 702, mounting seat; 703, straightening die; 704, limit stop frame; 705, operating handle; 706, fixing sleeve; 707, first clamping block; 708, second clamping block; 709, fixing pin; 710, spring; 711, locking handle; 8, second telescopic cylinder; 9, second straightening assembly; 10, straightening detection assembly; 1001, connecting rod; 1002, third telescopic cylinder; 1003, straightening detector; 1004, induction contact. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] Example:

[0028] See also Figure 1-Figure 7 , the utility model provides a technical solution:

[0029] A seamless steel pipe straightening inspection device comprises an operating table 1, wherein fixed frames 2 are fixedly installed on the left and right ends of the top of the operating table 1, first telescopic cylinders 3 are fixedly installed on the inner sides of two groups of fixed frames 2, rolling mechanisms 4 are fixedly installed on the tops of the two groups of first telescopic cylinders 3, a seamless steel pipe body 5 is erected between the two groups of rolling mechanisms 4, a moving frame 6 is slidably connected on the top of the operating table 1 and located between the two groups of fixed frames 2, a first straightening component 7 is fixedly connected to the bottom end of the inner side of the moving frame 6, second telescopic cylinders 8 are fixedly installed on the front and rear ends of the first straightening component 7, second straightening components 9 are fixedly installed on the tops of the two groups of second telescopic cylinders 8, and a straightening detection component 10 is fixedly installed on the left side of the moving frame 6 and located above the seamless steel pipe body 5.

[0030] First, a first motor 101 is fixedly installed on the left side of the operating table 1, and a screw rod 102 is rotatably connected to the inner side of the top of the operating table 1, and the driving end of the first motor 101 is fixedly connected to the left end of the screw rod 102, and the bottom of the moving frame 6 is threadedly connected to the screw rod 102 through a moving seat 103, and the front and rear ends of the bottom of the moving frame 6 are rotatably connected to rollers 104, and a moving groove 105 is opened at the position corresponding to the roller 104 on the top of the operating table 1. When the seamless steel pipe body 5 is straightened and inspected and straightened, the first motor 101 is started to drive the screw rod 102 to rotate, and the moving frame 6 is driven to move under the connection of the moving seat 103, so that the first straightening component 7, the second straightening component 9 and the straightening detection component 10 move accordingly, and at the same time cooperate with the rolling mechanism 4 to drive the seamless steel pipe body 5 to roll, thereby increasing the detection and straightening range of the seamless steel pipe body 5, and when the moving frame 6 moves, the roller 104 assists in rolling on the inner side of the moving groove 105, thereby improving the movement stability of the moving frame 6.

[0031] Furthermore, the rolling mechanism 4 includes a lifting frame 401 fixedly mounted on the driving end of the first telescopic cylinder 3, a second motor 402 is fixedly mounted on the bottom end of the inner side of the lifting frame 401, rollers 403 are rotatably connected to the front and rear ends of the top of the lifting frame 401, and a transmission wheel 404 is fixedly mounted on the driving end of the second motor 402 and the left end of one group of rollers 403. The outer sides of the two groups of transmission wheels 404 are sleeved with a synchronous belt 405. When the seamless steel pipe body 5 needs to be rolled, the first telescopic cylinder 3 needs to be started. The lifting frame 401 is pushed up to prevent the outer side of the seamless steel pipe body 5 from entering the inner side of the first straightening component 7 and causing wear. When the seamless steel pipe body 5 is straightened, the lifting frame 401 is lowered so that the outer side of the seamless steel pipe body 5 can enter the inner side of the first straightening component 7 and be supported. The transmission wheel 404 is driven by the second motor 402, and the roller 403 is driven to roll under the drive of the synchronous belt 405, so that the entire seamless steel pipe body 5 is rolled, thereby facilitating detection and adjustment during straightening.

[0032] Then, the four corners at the bottom of the lifting frame 401 are slidably connected to the fixed frame 2 through the sliding rod 406. A protective cover 407 is fixedly installed on the left side of the lifting frame 401 and on the outside of the two sets of transmission wheels 404. When the lifting frame 401 moves, the sliding rod 406 slides together, thereby improving the movement stability of the lifting frame 401. At the same time, the protective cover 407 protects the outside of the transmission wheel 404.

[0033] Furthermore, the first straightening component 7 has the same structure as the second straightening component 9. The first straightening component 7 includes a connecting seat 701 fixedly installed on the bottom end of the movable frame 6, and the second telescopic cylinder 8 is fixedly installed on the front and rear ends of the connecting seat 701. A mounting seat 702 is fixedly installed on the inner side of the connecting seat 701, and a straightening die 703 is clamped on the inner side of the mounting seat 702. When straightening the seamless steel pipe body 5, the lifting frame 401 is first lowered by the first telescopic cylinder 3, so that the seamless steel pipe body 5 enters the straightening die 703 below and is supported, and then the second telescopic cylinder 8 is started to retract and the entire second straightening component 9 is lowered, so that the two sets of straightening dies 703 are closed to straighten the seamless steel pipe body 5.

[0034] Furthermore, the outer side of the mounting seat 702 is rotatably connected to a limit stop frame 704, and the left end of the limit stop frame 704 is fixedly connected to an operating handle 705. Two sets of fixing sleeves 706 are fixedly connected to the outer side of the mounting seat 702 at a position opposite to the limit stop frame 704. The straightening die 703 is slidably installed on the inner side of the mounting seat 702. When the straightening die 703 is in use, the limit stop frame 704 is swung by the operating handle 705 to limit the left and right ends of the straightening die 703 and keep it stable. At the same time, the outer side of the limit stop frame 704 is inserted into the inner side of the fixing sleeve 706 for fixing.

[0035] Secondly, the mounting seat 702 is composed of a first clamping block 707 and a second clamping block 708, and a fixing pin 709 is slidably connected between the first clamping block 707 and the second clamping block 708, and a spring 710 is sleeved on the outside of the fixing pin 709 and located inside the first clamping block 707, and a locking handle 711 is rotatably connected to the front end of the fixing pin 709 and located at the front end of the second clamping block 708. When it is necessary to inspect and straighten seamless steel pipe bodies 5 of different sizes, the locking handle 711 is first rotated outward to loosen the fixing pin 709 under the pressure of the spring 710, thereby opening the first clamping block 707 and the second clamping block 708 to release the fixation of the straightening die 703, and then it is necessary to swing the limit frame 704 to release the limit on the straightening die 703, and the straightening die 703 can be pulled out from the inside of the mounting seat 702 and replaced with the straightening die 703 of the corresponding size, thereby greatly improving the applicability of the device.

[0036] Finally, the straightening detection assembly 10 includes a connecting rod 1001 fixedly installed on the left side of the moving frame 6, a third telescopic cylinder 1002 is fixedly installed on the front end of the connecting rod 1001, a straightening detector 1003 is fixedly installed on the driving end of the third telescopic cylinder 1002, and a sensing contact 1004 is fixedly connected to the bottom of the straightening detector 1003. When detecting the seamless steel pipe body 5, according to the different sizes of the seamless steel pipe body 5, the third telescopic cylinder 1002 is started to lower the straightening detector 1003 to the corresponding height. When the moving frame 6 moves, the sensing contact 1004 is used to detect different lateral positions of the seamless steel pipe body 5, and at the same time, the entire circumference is detected in conjunction with the rotation of the seamless steel pipe body 5.

[0037] It should be particularly noted that the first telescopic cylinder 3, the second telescopic cylinder 8 and the third telescopic cylinder 1002 are air cylinders or hydraulic cylinders.

[0038] In this embodiment, the implementation scenario is specifically as follows: when the seamless steel pipe body 5 is inspected and straightened, the first telescopic cylinder 3 is started to push up the lifting frame 401, and then the seamless steel pipe body 5 is erected on the roller 403 on the top of the lifting frame 401, so that the seamless steel pipe body 5 is located between the first straightening component 7 and the second straightening component 9, and the first motor 101 is started to drive the screw rod 102 to rotate, and the moving frame 6 is driven to move under the connection of the moving seat 103, so that the first straightening component 7, the second straightening component 9 and the straightening detection component 10 move accordingly, and at the same time, the rolling mechanism 4 is cooperated to drive the seamless steel pipe body 5 to roll, thereby increasing the inspection and straightening range of the seamless steel pipe body 5. After the inspection is completed, the moving frame 6 is first moved to the corresponding position, and the lifting frame 401 is first lowered by the first telescopic cylinder 3, so that the seamless steel pipe body 5 enters the straightening mold below. 703 is supported, and then the second telescopic cylinder 8 is started to retract and lower the entire second straightening assembly 9, so that the two sets of straightening dies 703 are closed to straighten the seamless steel pipe body 5. When the straightening die 703 is in use, the limit stop frame 704 is swung by the operating handle 705 to limit the left and right ends of the straightening die 703 and keep it stable. At the same time, the outer side of the limit stop frame 704 is inserted into the inner side of the fixing sleeve 706 for fixation. When seamless steel pipe bodies 5 of different sizes need to be inspected and straightened, it is only necessary to swing the limit stop frame 704 to release the limit on the straightening die 703, and then the straightening die 703 is pulled out from the inside of the mounting seat 702 and replaced with the straightening die 703 of the corresponding size. The whole operation process is simple and convenient. Compared with the existing seamless steel pipe straightening inspection device, the utility model can improve the overall applicability of the seamless steel pipe straightening inspection device through design.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seamless steel pipe straightening inspection device, comprising an operating table (1), characterized in that: Fixed frames (2) are fixedly installed at both left and right ends of the top of the operating table (1), first telescopic cylinders (3) are fixedly installed on the inner sides of the two groups of fixed frames (2), rolling mechanisms (4) are fixedly installed on the top ends of the two groups of the first telescopic cylinders (3), and a seamless steel pipe body (5) is arranged between the two groups of the rolling mechanisms (4). A moving frame (6) is slidably connected at the top of the operating table (1) and located between the two groups of fixed frames (2), a first straightening assembly (7) is fixedly connected to the bottom end of the inner side of the moving frame (6), a second telescopic cylinder (8) is fixedly installed at both front and rear ends of the first straightening assembly (7), and a second straightening assembly (9) is fixedly installed on the top ends of the two groups of the second telescopic cylinders (8), and a straightening detection assembly (10) is fixedly installed on the left side of the moving frame (6) and located above the seamless steel pipe body (5).

2. A seamless steel pipe straightening inspection device according to claim 1, characterized in that: A first motor (101) is fixedly mounted on the left side of the operating table (1); a screw rod (102) is rotatably connected to the inner side of the top of the operating table (1); a driving end of the first motor (101) is fixedly connected to the left end of the screw rod (102); the bottom of the moving frame (6) is threadedly connected to the screw rod (102) via a moving seat (103); rollers (104) are rotatably connected to the front and rear ends of the bottom of the moving frame (6); and a moving groove (105) is provided at a position on the top of the operating table (1) corresponding to the roller (104).

3. The device for testing the straightness of a seamless steel pipe according to claim 1, characterized in that: The rolling mechanism (4) comprises a lifting frame (401) fixedly mounted on the driving end of the first telescopic cylinder (3); a second motor (402) is fixedly mounted on the bottom end of the inner side of the lifting frame (401); rollers (403) are rotatably connected to the front and rear ends of the top of the lifting frame (401); a transmission wheel (404) is fixedly mounted on the driving end of the second motor (402) and the left end of one group of rollers (403); and a synchronous belt (405) is sleeved on the outer sides of the two groups of transmission wheels (404).

4. A seamless steel pipe straightening inspection device according to claim 3, characterized in that: The four corners at the bottom of the lifting frame (401) are slidably connected to the fixed frame (2) through sliding rods (406), and a protective cover (407) is fixedly installed on the left side of the lifting frame (401) and outside the two sets of transmission wheels (404).

5. The device for testing the straightness of a seamless steel pipe according to claim 1, characterized in that: The first straightening assembly (7) and the second straightening assembly (9) have the same structure. The first straightening assembly (7) comprises a connecting seat (701) fixedly mounted on the bottom end of the inside of the moving frame (6). The second telescopic cylinder (8) is fixedly mounted on the front and rear ends of the connecting seat (701). A mounting seat (702) is fixedly mounted on the inner side of the connecting seat (701). A straightening die (703) is clamped on the inner side of the mounting seat (702).

6. A seamless steel pipe straightening inspection device according to claim 5, characterized in that: The outer side of the mounting seat (702) is rotatably connected to a limit stop frame (704), the left end of the limit stop frame (704) is fixedly connected to an operating handle (705), and two sets of fixing sleeves (706) are fixedly connected at positions on the outer side of the mounting seat (702) opposite to the limit stop frame (704).

7. A seamless steel pipe straightening inspection device according to claim 5, characterized in that: The mounting seat (702) is composed of a first clamping block (707) and a second clamping block (708); a fixing pin (709) is slidably connected between the first clamping block (707) and the second clamping block (708); a spring (710) is sleeved on the outside of the fixing pin (709) and located inside the first clamping block (707); a locking handle (711) is rotatably connected to the front end of the fixing pin (709) and located at the front end of the second clamping block (708).

8. The device for testing the straightness of a seamless steel pipe according to claim 1, characterized in that: The straightening detection assembly (10) comprises a connecting rod (1001) fixedly mounted on the left side of the moving frame (6); a third telescopic cylinder (1002) is fixedly mounted on the front end of the connecting rod (1001); a straightening detector (1003) is fixedly mounted on the driving end of the third telescopic cylinder (1002); and a sensing contact (1004) is fixedly connected to the bottom of the straightening detector (1003).

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