A clamping device for driving seamless steel pipe to move

Abstract

The present invention discloses a clamping device for driving the movement of seamless steel pipes, which belongs to the technical field of seamless steel pipe processing, and includes: a frame; a clamping unit, which is rotatably connected to the side of the frame; a sliding unit, which is slidably connected to the clamping unit; a delayed opening and closing unit, which is rotatably connected to the clamping unit and connected to the sliding unit; and a fixed unit, which is slidably connected to the clamping unit. When processing the seamless steel pipe, the seamless steel pipe is placed in the horizontal clamping unit. Through the cooperation of the sliding unit and the delayed opening and closing unit, when the clamping unit rotates from the vertical state to the horizontal state, the clamping unit will delay opening, which prevents the clamping unit from opening too early and causing the seamless steel pipe to roll off. When the clamping unit rotates to the horizontal state, the two groups of clamping units are opened to the maximum position, which is convenient for replacing the processed seamless steel pipe. The present invention has the advantages of high safety and high processing efficiency.

Description

Technical Field

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

[0002] A Chinese patent (authorization announcement number: CN220881462U) discloses a clamping device for seamless steel pipe processing, including a support rail shaft, a box frame fixedly installed at one end of the support rail shaft, a support base fixedly installed at the bottom of the box frame, a movable rail sleeve slidably sleeved on the surface of the other end of the support rail shaft, and a support T frame fixedly sleeved on the surface of the movable rail sleeve. By setting a motor group to drive the threaded horizontal shaft to rotate, the internal threaded horizontal pipe moves laterally on the rotating threaded horizontal shaft surface, driving the movable rail sleeve to slide laterally on the surface of the support rail shaft, so that the steel pipe side end insertion mechanism at the top of the support T frame and the steel pipe side end insertion mechanism at the top of the box frame move toward each other, and by placing the end of the steel pipe fitting to be fixed therein, the two steel pipe side end insertion mechanisms are inserted into the steel pipe port for clamping, so as to achieve the effect of facilitating clamping and fixing from the steel pipe port, and the effect of facilitating processing of the entire steel pipe surface is achieved, which is conducive to processing of the entire pipe body surface.

[0003] The clamping device for driving the movement of the seamless steel pipe in the above technical solution also has the following defects when in use: when the processed seamless steel pipe is disassembled, the two ends of the seamless steel pipe are prone to falling off instantly due to the loss of fixation of the clamping device, which poses certain safety hazards. Therefore, it is necessary to provide a clamping device for driving the movement of the seamless steel pipe to solve the above problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, an embodiment of the present invention aims to provide a clamping device for driving a seamless steel pipe to move, so as to solve the problems in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A clamping device for driving a seamless steel pipe to move, comprising:

[0007] frame;

[0008] The clamping unit is rotatably connected to the side of the frame and is used to clamp and move the seamless steel pipe;

[0009] A sliding unit, slidably connected to the clamping unit, and used for adjusting the position of the clamping unit;

[0010] A delayed opening and closing unit is rotatably connected to the clamping unit and connected to the sliding unit, and is used to cooperate with the sliding unit to achieve delayed opening and closing of the clamping unit;

[0011] The fixing unit is slidably connected to the clamping unit and is used to clamp and fix the seamless steel pipe.

[0012] As a preferred technical solution of the present invention, the clamping unit includes: a bracket fixed on the side of the frame, with a driving member installed on the side; a driving shaft, rotatably connected in the bracket, and the end of which is connected to the output end of the driving member; a right-angle frame fixed on the end surface of the driving shaft, and two groups of right-angle frames are installed, and the two groups of right-angle frames are connected by a placement frame; two groups of device frames are connected to the side of the right-angle frame; a clamping frame, slidably connected to the inside of the two groups of device frames, two groups of clamping frames are installed in each group of device frames, and clamping grooves are provided on the clamping frames.

[0013] As a preferred technical solution of the present invention, a rubber pad is installed on the inner wall of the clamping groove.

[0014] As a preferred technical solution of the present invention, the sliding unit includes: a slide groove, which is opened on the right-angle frame and has a sliding member slidably connected inside; an elliptical slide groove, which is opened on the bracket; a sliding column, which is fixed on the sliding member and slidably connected in the elliptical slide groove.

[0015] As a preferred technical solution of the present invention, the driving shaft is located at the center of the elliptical slide groove.

[0016] As a preferred technical solution of the present invention, the delayed opening and closing unit includes: a rack, which is slidably connected to the surface of the right-angle frame and connected to the right-angle frame; a support frame, which is connected to the side of the right-angle frame and is internally rotatably connected to a gear; a sliding column, which is eccentrically fixed to the surface of the gear; an arc groove, which is opened on the clamping frame, and the sliding column is slidably connected inside the arc groove.

[0017] As a preferred technical solution of the present invention, the length of the sliding column from the center of the gear is equal to the length of the radius of the arc groove.

[0018] As a preferred technical solution of the present invention, the fixing unit includes: a groove frame, fixed to the side of the placement frame, and slidably connected with a sliding rod inside; an arc frame, fixed to the end of the sliding rod, and the arc frame is snap-connected to the inside of the groove frame; an elastic member, connected between the inner wall of the groove frame and the side of the arc frame; an arc support frame, connected between the upper ends of the two groups of brackets, and the surface and the end of the sliding rod away from the groove frame are slidably connected.

[0019] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: when processing the seamless steel pipe, the present invention places the seamless steel pipe in a horizontal clamping unit, and through the cooperation of the sliding unit and the delayed opening and closing unit, when the clamping unit rotates from a vertical state to a horizontal state, the clamping unit will delay opening, thereby preventing the clamping unit from opening too early and causing the seamless steel pipe to roll off; when the clamping unit rotates to a horizontal state, the two groups of clamping units are opened to the maximum position, thereby facilitating the replacement of the processed seamless steel pipe. Compared with the problem in the prior art that the two ends of the seamless steel pipe lose clamping instantly and cause the seamless steel pipe to fall easily, the present invention has the advantages of high safety and high processing efficiency by setting a sliding unit and a delayed opening and closing unit.

[0020] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the overall structure of a clamping device for driving a seamless steel pipe to move provided in an embodiment of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure of the device frame provided in an embodiment of the present invention.

[0023] Figure 3 It is a schematic structural diagram of a clamping unit provided in an embodiment of the present invention.

[0024] Figure 4 It is a schematic diagram of the structure of the sliding unit provided in an embodiment of the present invention.

[0025] Figure 5 for Figure 1 A partial enlarged view of part A.

[0026] Figure 6 It is a schematic diagram of the structure of a fixing unit provided in an embodiment of the present invention.

[0027] Figure 7 It is a schematic structural diagram of the clamping frame in an open state provided in an embodiment of the present invention.

[0028] Figure 8 It is a structural schematic diagram of the closed state of the clamping frame provided in an embodiment of the present invention.

[0029] Figure numerals: 1. frame; 2. clamping unit; 21. bracket; 22. driving member; 23. driving shaft; 24. right-angle frame; 25. device frame; 26. clamping frame; 261. clamping groove; 27. placement frame; 3. sliding unit; 31. slide groove; 32. sliding member; 33. elliptical slide groove; 34. sliding column; 4. delayed opening and closing unit; 41. rack; 42. support frame; 43. gear; 44. sliding column; 45. arc groove; 5. fixing unit; 51. groove frame; 52. slide rod; 53. arc frame; 54. elastic member; 55. arc support frame. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0032] See also Figures 1 to 8 , a clamping device for driving a seamless steel pipe to move, comprising:

[0033] Rack 1;

[0034] The clamping unit 2 is rotatably connected to the side of the frame 1 and is used to clamp and move the seamless steel pipe;

[0035] A sliding unit 3 is slidably connected to the clamping unit 2 and is used to adjust the position of the clamping unit 2;

[0036] The delayed opening and closing unit 4 is rotatably connected to the clamping unit 2 and connected to the sliding unit 3, and is used to cooperate with the sliding unit 3 to realize the delayed opening and closing of the clamping unit 2;

[0037] The fixing unit 5 is slidably connected to the clamping unit 2 and is used to clamp and fix the seamless steel pipe.

[0038] In an embodiment of the present invention, when processing a seamless steel pipe, the seamless steel pipe is placed in a horizontal clamping unit 2. Through the cooperation of the sliding unit 3 and the delayed opening and closing unit 4, when the clamping unit 2 rotates from a vertical state to a horizontal state, the clamping unit 2 will open with a delay, thereby preventing the clamping unit 2 from opening too early and causing the seamless steel pipe to roll off. When the clamping unit 2 rotates to a horizontal state, the two groups of clamping units 2 open to the maximum position, thereby facilitating the replacement of the processed seamless steel pipe and improving the continuity of the seamless steel pipe processing.

[0039] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the clamping unit 2 comprises:

[0040] A bracket 21 is fixed to the side of the frame 1, and a driving member 22 is installed on the side;

[0041] The driving shaft 23 is rotatably connected in the bracket 21, and the end portion is connected to the output end of the driving member 22;

[0042] A right angle bracket 24 is fixed to the end surface of the driving shaft 23. Two groups of right angle brackets 24 are installed, and the two groups of right angle brackets 24 are connected by a placement bracket 27;

[0043] Two sets of device frames 25 are connected to the side of the right angle frame 24;

[0044] The clamping frames 26 are slidably connected inside the two sets of device frames 25 . Two sets of clamping frames 26 are installed in each set of device frames 25 . The clamping frames 26 are provided with clamping grooves 261 . The inner walls of the clamping grooves 261 are provided with rubber pads.

[0045] In this embodiment, when processing the seamless steel pipe, firstly, the seamless steel pipe is placed in the clamping groove 261 on the two sets of clamping frames 26 in a horizontal state, and the driving member 22 is turned on. The output end of the driving member 22 drives the right angle frame 24 to rotate 90 degrees clockwise through the driving shaft 23, so that the two sets of clamping frames 26 in a horizontal state at one end of the right angle frame 24 rotate to a vertical state, and the two sets of clamping frames 26 in a vertical state at the other end of the right angle frame 24 rotate to a horizontal state. When the two sets of clamping frames 26 drive the seamless steel pipe inside them to rotate to a vertical state through the clamping groove 261, the placing frame 27 can support the seamless steel pipe, and the two sets of clamping frames 26 can clamp and fix the seamless steel pipe, thereby improving the stability of clamping and fixing the seamless steel pipe.

[0046] The driving member 22 can be an electric motor or a pneumatic motor to drive the driving shaft 23 to rotate stably on the bracket 21.

[0047] In one embodiment of the present invention, Figure 3 , Figure 4 and Figure 5 As shown, the sliding unit 3 includes:

[0048] The slide groove 31 is provided on the right angle frame 24 and is slidably connected with a slide member 32 inside;

[0049] The elliptical slide groove 33 is provided on the bracket 21 , and the driving shaft 23 is located at the center of the elliptical slide groove 33 .

[0050] The sliding post 34 is fixed on the sliding member 32 , and the sliding post 34 is slidably connected in the elliptical sliding groove 33 .

[0051] In this embodiment, when the two groups of clamping frames 26 rotate from the horizontal state to the vertical state, the right-angle frame 24 will drive the sliding column 34 to rotate synchronously through the sliding member 32, so that the sliding column 34 slides in the elliptical slide groove 33. Since the driving shaft 23 is located at the center position of the elliptical slide groove 33, when the right-angle frame 24 rotates from the horizontal state to the vertical state, the sliding column 34 will drive the sliding member 32 to slide in the slide groove 31 away from the driving shaft 23 under the action of the elliptical slide groove 33, and then the sliding member 32 can drive the two groups of clamping frames 26 to retract through the delayed opening and closing unit 4, so that when the two groups of clamping frames 26 rotate to the vertical state, the two groups of clamping frames 26 will clamp and fix the seamless steel pipe through the corresponding clamping groove 261.

[0052] The inner wall of the clamping groove 261 is installed with a rubber pad, and the protective performance of the seamless steel pipe is improved by the rubber pad.

[0053] In one embodiment of the present invention, Figure 5 , Figure 7 and Figure 8 As shown, the delayed opening and closing unit 4 includes:

[0054] The rack 41 is slidably connected to the surface of the right angle frame 24 and connected to the right angle frame 24;

[0055] The support frame 42 is connected to the side of the right angle frame 24 and is rotatably connected to a gear 43;

[0056] A slide post 44 is eccentrically fixed to the surface of the gear 43;

[0057] The arc groove 45 is formed on the clamping frame 26 , and the sliding column 44 is slidably connected inside the arc groove 45 .

[0058] In this embodiment, when the two sets of clamping frames 26 rotate from a vertical state to a horizontal state, the right-angle frame 24 drives the sliding column 34 to rotate synchronously through the sliding member 32, so that the sliding column 34 drives the sliding member 32 to slide in the sliding groove 31 toward the direction close to the drive shaft 23 under the action of the elliptical sliding groove 33, and the sliding member 32 drives the rack 41 to slide synchronously toward the direction close to the drive shaft 23 when sliding ( Figure 8 The rack 41 will drive the two sets of gears 43 to rotate in opposite directions on the support frame 42, and the two sets of gears 43 will respectively drive the slide post 44 to rotate synchronously when rotating.

[0059] like Figure 8 As shown, when the two sets of clamping frames 26 rotate from the vertical state to the horizontal state, the rack 41 will slide towards the direction close to the drive shaft 23 under the action of the slide groove 31 and the sliding member 32 ( Figure 8When the rack 41 slides downward, the two sets of gears 43 will drive the sliding posts 44 on their surfaces to rotate in opposite directions under the action of the rack 41, that is, the gear 43 on the left side drives the sliding post 44 on its surface to rotate clockwise, and the gear 43 on the right side drives the sliding post 44 on its surface to rotate counterclockwise. Because the length of the sliding post 44 from the center of the gear 43 is equal to the length of the radius of the arc groove 45, the two sets of sliding posts 44 will slide in the arc groove 45 at this time. During this process, the positions of the two sets of clamping frames 26 will not change.

[0060] When the slide post 44 slides from one end of the arc groove 45 to the other end, that is, Figure 8 After sliding from the uppermost end of the arc groove 45 to the lowermost end, the two sets of gears 43 continue to drive the sliding column 44 to rotate. At this time, the two sets of clamping frames 26 will move away from each other under the action of the arc groove 45 and the sliding column 44. When the two sets of clamping frames 26 rotate to a horizontal state, the two sets of gears 43 drive the sliding column 44 on their surfaces to rotate to the highest point and the lowest point respectively. Therefore, at this time, the two sets of clamping frames 26 are opened to the maximum state, which is convenient for replacing the processed seamless steel pipe.

[0061] like Figure 7 As shown, when the two sets of clamping frames 26 are in a horizontal state, the sliding posts 44 on the surfaces of the two sets of gears 43 corresponding to the two sets of clamping frames 26 are respectively located at the highest point and the lowest point, that is, Figure 7 The slide post 44 on the surface of the middle upper gear 43 is at the highest point. Figure 7 The sliding column 44 on the surface of the middle and lower gear 43 is at the lowest point. When the two sets of clamping frames 26 rotate from the horizontal state to the vertical state, the rack 41 will slide away from the drive shaft 23 under the action of the sliding groove 31 and the sliding member 32 ( Figure 7 When the rack 41 slides to the left, the upper gear 43 drives the sliding post 44 on its surface to rotate clockwise, and the lower gear 43 drives the sliding post 44 on its surface to rotate counterclockwise. Therefore, at this time, the upper clamping frame 26 slides downward under the action of the corresponding sliding post 44 and the arc groove 45, and the lower clamping frame 26 slides upward under the action of the corresponding sliding post 44 and the arc groove 45. In other words, the two groups of clamping frames 26 will move closer to each other.

[0062] When the two sets of gears 43 drive the slide posts 44 on their surfaces to rotate 90 degrees, the slide posts 44 will slide to the end of the arc groove 45, and the two sets of clamping frames 26 will contact each other. When the two sets of gears 43 continue to drive the slide posts 44 on their surfaces to rotate, because the length of the slide posts 44 from the center of the gear 43 is equal to the length of the radius of the arc groove 45, the two sets of slide posts 44 will slide in the arc groove 45. During this process, the two sets of clamping frames 26 will not continue to move closer. When the two sets of clamping frames 26 rotate to a vertical state, such as Figure 8 state, at this time, the sliding posts 44 on the surfaces of the two sets of gears 43 rotate to the highest point position.

[0063] In summary, by setting the delayed opening and closing unit 4, when the two groups of clamping frames 26 rotate from the vertical state to the horizontal state, the two groups of clamping frames 26 will be delayed to open, preventing the two groups of clamping frames 26 from opening too early and causing the seamless steel pipe to roll off. When the two groups of clamping frames 26 rotate to the horizontal state, the two groups of clamping frames 26 are opened to the maximum position, so that it is convenient to replace the processed seamless steel pipe, and improve the continuity of the seamless steel pipe processing. After the seamless steel pipe is replaced, the two groups of clamping frames 26 will rotate from the horizontal state to the vertical state. In this process, the two groups of clamping frames 26 will be close to each other in time, which is convenient for the two groups of clamping frames 26 to fix the seamless steel pipe in time through the clamping groove 261, and improve the stability of the seamless steel pipe processing.

[0064] like Figure 2 As shown, two groups of clamping frames 26 are installed at both ends of the right angle frame 24, so when the two groups of clamping frames 26 at one end of the right angle frame 24 are rotated to a vertical state, the two groups of clamping frames 26 at the other end of the right angle frame 24 will rotate to a horizontal state, and then when one group of seamless steel pipes is processed, the other group of seamless steel pipes can be replaced, thereby improving the processing efficiency of the seamless steel pipes.

[0065] Furthermore, a positioning groove is provided on the inner wall of the device frame 25, and a positioning frame is connected to the surface of the clamping frame 26, and the positioning frame is slidably connected in the positioning groove. The cooperation of the positioning groove and the positioning frame improves the stability of the clamping frame 26 when sliding inside the device frame 25.

[0066] In one embodiment of the present invention, Figure 6 As shown, the fixing unit 5 includes:

[0067] The groove frame 51 is fixed to the side of the placement frame 27, and a slide rod 52 is slidably connected therein;

[0068] The arc frame 53 is fixed to the end of the slide bar 52, and the arc frame 53 is snap-connected to the inside of the groove frame 51;

[0069] An elastic member 54 is connected between the inner wall of the groove frame 51 and the side surface of the arc frame 53;

[0070] The arc-shaped support frame 55 is connected between the upper ends of the two groups of brackets 21 , and its surface is slidably connected to the end of the slide rod 52 away from the groove frame 51 .

[0071] In this embodiment, when the two groups of clamping frames 26 rotate from a horizontal state to a vertical state, the two groups of clamping frames 26 will drive their placement frames 27 to rotate synchronously, so that the placement frame 27 will drive the slide bar 52 and the arc frame 53 to rotate as a whole through the groove frame 51. When the two groups of clamping frames 26 rotate quickly to a vertical state, the lower end of the slide bar 52 will contact the surface of the arc support frame 55, so the slide bar 52 will slide upward in the groove frame 51 under the push of the arc support frame 55. When sliding, the slide bar 52 will drive the arc frame 53 to slide synchronously until the arc frame 53 slides out of the groove frame 51 and contacts the lower surface of the seamless steel pipe, so that the seamless steel pipe will be clamped and fixed under the joint action of the two groups of clamping grooves 261 and the arc frame 53, which effectively improves the stability of the seamless steel pipe during processing.

[0072] The arc frame 53 will stretch the elastic member 54 when sliding upward. When the two sets of clamping frames 26 rotate from a vertical state to a horizontal state, the lower end of the slide rod 52 will slide to a surface that is separated from the arc support frame 55. Therefore, the arc frame 53 will slide into the groove frame 51 under the pull of the elastic member 54 until the arc frame 53 completely slides into the groove frame 51, so that the seamless steel pipe can be placed when the two sets of clamping frames 26 are in a horizontal state.

[0073] The elastic member 54 can be a spring or elastic rubber, which is not limited here.

[0074] The working principle of the present invention is: when processing the seamless steel pipe, first place the seamless steel pipe in the clamping groove 261 on the two groups of clamping frames 26 in a horizontal state, turn on the driving member 22, and the output end of the driving member 22 drives the right-angle frame 24 to rotate 90 degrees through the driving shaft 23, so that the two groups of clamping frames 26 in a horizontal state at one end of the right-angle frame 24 are rotated to a vertical state, and the two groups of clamping frames 26 in a vertical state at the other end of the right-angle frame 24 are rotated to a horizontal state.

[0075] When the two groups of clamping frames 26 rotate from the horizontal state to the vertical state, the right-angle frame 24 will drive the sliding column 34 to rotate through the sliding member 32, so that the sliding column 34 slides in the elliptical slide groove 33. Since the driving shaft 23 is located at the center position of the elliptical slide groove 33, when the right-angle frame 24 rotates from the horizontal state to the vertical state, the sliding column 34 will drive the sliding member 32 to slide in the slide groove 31 away from the driving shaft 23 under the action of the elliptical slide groove 33, and then the sliding member 32 can drive the two groups of clamping frames 26 to retract through the delayed opening and closing unit 4, so that when the two groups of clamping frames 26 rotate to the vertical state, the two groups of clamping frames 26 will clamp and fix the seamless steel pipe through the corresponding clamping groove 261.

[0076] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping device for driving a seamless steel pipe to move, characterized in that: The clamping device for driving the seamless steel pipe to move comprises: Rack (1); The clamping unit (2) is rotatably connected to the side of the frame (1) and is used to clamp and move the seamless steel pipe. The clamping unit (2) comprises: a bracket (21) fixed to the side of the frame (1), and a driving member (22) is installed on the side; a driving shaft (23) is rotatably connected in the bracket (21), and the end is connected to the output end of the driving member (22); a right angle bracket (24) is fixed to the end surface of the driving shaft (23), and two groups of right angle brackets (24) are installed. The two groups of right angle brackets (24) are connected by a placement bracket (27), and the side of the right angle bracket (24) is connected to two groups of device brackets (25); a clamping bracket (26) is slidably connected to the inside of the two groups of device brackets (25), and two groups of clamping brackets (26) are installed in each group of device brackets (25), and a clamping groove (261) is provided on the clamping bracket (26); The sliding unit (3) is slidably connected to the clamping unit (2) and is used to adjust the position of the clamping unit (2). The sliding unit (3) comprises: a slide groove (31) provided on the right-angle frame (24) and having a sliding member (32) slidably connected therein; an elliptical slide groove (33) provided on the bracket (21); a sliding column (34) fixed on the sliding member (32), and the sliding column (34) is slidably connected in the elliptical slide groove (33); The delayed opening and closing unit (4) is rotatably connected to the clamping unit (2) and connected to the sliding unit (3), and is used to cooperate with the sliding unit (3) to realize the delayed opening and closing of the clamping unit (2). The delayed opening and closing unit (4) comprises: a rack (41) slidably connected to the surface of the right-angle frame (24) and connected to the right-angle frame (24); a support frame (42) connected to the side of the right-angle frame (24) and internally rotatably connected to a gear (43); a sliding column (44) eccentrically fixed to the surface of the gear (43); an arc groove (45) provided on the clamping frame (26), and the sliding column (44) is slidably connected inside the arc groove (45); The fixing unit (5) is slidably connected to the clamping unit (2) and is used to clamp and fix the seamless steel pipe.

2. The clamping device for moving a seamless steel pipe according to claim 1, characterized in that: The inner wall of the clamping groove (261) is provided with a rubber pad.

3. The clamping device for moving a seamless steel pipe according to claim 1, characterized in that: The driving shaft (23) is located at the center of the elliptical slide groove (33).

4. The clamping device for moving a seamless steel pipe according to claim 1, characterized in that: The length of the slide column (44) from the center of the gear (43) is equal to the length of the radius of the arc groove (45).

5. The clamping device for moving a seamless steel pipe according to claim 1, characterized in that: The fixing unit (5) comprises: A groove frame (51) is fixed on the side of the placement frame (27) and is slidably connected with a slide rod (52) inside; The arc frame (53) is fixed to the end of the slide bar (52), and the arc frame (53) is snap-connected to the inside of the groove frame (51); An elastic member (54) connected between the inner wall of the groove frame (51) and the side surface of the arc frame (53); The arc-shaped support frame (55) is connected between the upper ends of the two groups of brackets (21), and the surface is slidably connected to the end of the slide rod (52) away from the groove frame (51).

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