Clamping device for flaw detection of seamless steel pipe

Abstract

The utility model discloses a clamping device for seamless steel tube flaw detection, and particularly relates to the technical field of seamless steel tube flaw detection equipment, the clamping device comprises a base, the top surface of the base is provided with two clamping blocks for clamping a seamless steel tube, and one side of each clamping block is fixedly provided with a first motor; and rotating plates are fixedly mounted at the output ends of the two first motors correspondingly, and rotating frames are fixedly mounted on the top faces of the two clamping blocks correspondingly. According to the clamping device for flaw detection of the seamless steel pipe, in actual work, the second motor drives the first threaded rod to rotate, the rack can drive the two gears to rotate in the same direction, then the seamless steel pipe placed between the two rotating rollers can rotate, the first motor drives the rotating plate to rotate, and therefore the seamless steel pipe is clamped between the two rotating rollers. And the seamless steel pipe between the two rotating plates can be rotated, so that the seamless steel pipe can be conveniently rotated, and comprehensive flaw detection can be conveniently performed on the seamless steel pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless steel pipe flaw detection equipment, and particularly relates to a clamping device for seamless steel pipe flaw detection. Background Technique

[0002] Seamless steel pipes are made by piercing a whole round steel, and there are no welds on the surface. They can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extrusion seamless steel pipes, pipe jacking, etc. Often, methods such as appearance observation, hydrostatic pressure or ray are used to detect flaws in seamless steel pipes. During the flaw detection process, it is necessary to ensure that the seamless steel pipe is clamped stably.

[0003] After retrieval, for example, the utility model with the application number 202221579850.8 discloses a clamping and fixing device for seamless steel pipe flaw detection, including a bottom plate. A first fixing block is threadedly installed on the left-handed thread of the bidirectional screw rod, and a second fixing block is threadedly installed on the right-handed thread of the bidirectional screw rod. The gear meshes with the rack; through the setting of the bidirectional screw rod and the gear, through the cooperation of the bidirectional screw rod, the first fixing block and the second fixing block, during the flaw detection process of seamless steel pipes, various methods are often used. Therefore, when clamping seamless steel pipes, it is necessary to rotate them to facilitate comprehensive flaw detection of seamless steel pipes. However, after the seamless steel pipe is clamped and fixed by this utility model, it is inconvenient to rotate the seamless steel pipe. Therefore, in order to solve the above defects, the inventor of the present invention proposes a clamping device for seamless steel pipe flaw detection. Content of the Utility Model

[0004] The main purpose of the present utility model is to provide a clamping device for seamless steel pipe flaw detection, which can effectively solve the problem that it is inconvenient to rotate the seamless steel pipe after the seamless steel pipe is clamped and fixed in the prior art.

[0005] To achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0006] A clamping device for seamless steel pipe flaw detection includes a base. Two clamping blocks for clamping seamless steel pipes are provided on the top surface of the base. A first motor is fixedly installed on one side of each of the two clamping blocks, and a rotating plate is fixedly installed at the output end of each of the two first motors. A rotating frame is fixedly installed on the top surface of each of the two clamping blocks;

[0007] Two rotating shafts are movably installed inside the rotating frame, and one end of each of the two rotating shafts extends out of the rotating frame. A rotating roller is fixedly installed on one side of the outer surface of each of the two rotating shafts inside the rotating frame. A gear is fixedly installed at one end of each of the two rotating shafts extending out of the rotating frame. Two support blocks are fixedly installed on the outer surface of the rotating frame on the side of the gear;

[0008] A first threaded rod is movably installed on one side between the two support blocks, and a first sliding rod is fixedly installed on the other side between the two support blocks. A rack is threadedly connected to the outer surface of the first threaded rod, and the rack is movably connected to the first sliding rod. Both of the two gears are engaged with the rack. A second motor is fixedly installed on one side of the two support blocks, and the output end of the second motor is fixedly connected to the first threaded rod.

[0009] Preferably, an inner support column is fixedly installed on one side of the rotating plate. A plurality of extension rods are movably installed inside the inner support column, and the extension rods extend out of the inner support column. A support plate is fixedly installed at one end of the extension rod extending out of the inner support column. A third motor is fixedly installed inside the inner support column, and the output end of the third motor is fixedly installed with a driving plate. A plurality of through holes are formed on one side of the driving plate. A contact rod is fixedly installed on one side of the extension rod located inside the inner support column, and the contact rod is movably connected to the through holes of the driving plate. Two fixing plates are fixedly installed on one side of the rotating plate, and the inner support column is located between the two fixing plates. Second threaded rods are threadedly connected to the sides of the two fixing plates away from the rotating plate, and clamping plates are movably connected to the opposite ends of the two second threaded rods.

[0010] Preferably, a third threaded rod is movably installed on one side of the top surface of the clamping block, and a second sliding rod is fixedly installed on the other side of the top surface of the clamping block. Two clamping arms are threadedly connected to the outer surface of the third threaded rod, and both clamping arms are movably connected to the second sliding rod. The rotating frame is located between the two clamping arms. A fourth motor is fixedly installed on one side of the outer surface of the clamping block, and the output end of the fourth motor is fixedly connected to the third threaded rod.

[0011] Preferably, rubber gaskets are fixedly installed on the opposite sides of the two clamping arms.

[0012] Preferably, two sections of opposite threads are provided on the outer surface of the third threaded rod.

[0013] Preferably, two sliding rails are fixedly installed inside the base. Two moving blocks are jointly movably connected to the outer surfaces of the two sliding rails, and the two moving blocks are respectively fixedly connected to the two clamping blocks. Two movable rods are fixedly installed inside the base, and the two movable rods are located above the two sliding rails. A connecting block is jointly movably connected to the outer surfaces of the two movable rods. Driving arms are movably installed on both sides of the connecting block, and the two driving arms are respectively movably connected to the two moving blocks. A cylinder is fixedly installed on one side inside the base, and the output end of the cylinder is fixedly connected to the connecting block.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model discloses a clamping device for seamless steel pipe flaw detection. By setting a rotating frame, in actual work, the second motor drives the first threaded rod to rotate, and the rack can drive two gears to rotate in the same direction, so that the seamless steel pipe placed between the two rotating rollers can rotate. The first motor drives the rotating plate to rotate, so that the seamless steel pipe between the two rotating plates can rotate, thus facilitating the rotation of the seamless steel pipe for comprehensive flaw detection of the seamless steel pipe. Description of the Drawings

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 is a schematic diagram of the structure of the rotating frame of the utility model;

[0018] Figure 3 is a schematic cross-sectional view of the inner support column of the utility model;

[0019] Figure 4 is a schematic diagram of the structure of the clamping block of the utility model;

[0020] Figure 5 is a schematic top view of the base of the utility model.

[0021] In the figure: 1, base; 2, clamping block; 3, rotating frame; 4, rotating plate; 5, inner support column; 6, fixing plate; 7, first motor; 301, rotating shaft; 302, rotating roller; 303, support block; 304, first threaded rod; 305, first slide bar; 306, rack; 307, second motor; 308, gear; 601, second threaded rod; 602, clamping plate; 603, third motor; 604, driving plate; 605, extension rod; 606, support plate; 201, third threaded rod; 202, second slide bar; 203, clamping arm; 204, fourth motor; 101, slide rail; 102, moving block; 103, movable rod; 104, connecting block; 105, air cylinder; 106, driving arm. Detailed Implementation Modes

[0022] In order to make the technical means, creative features, achieved purposes and functions of the utility model easy to understand, the following further elaborates the utility model in combination with specific implementation modes.

[0023] The utility model discloses a clamping device for seamless steel pipe flaw detection. As Figures 1-5 shown, it includes a base 1. Two clamping blocks 2 for clamping seamless steel pipes are arranged on the top surface of the base 1. A first motor 7 is fixedly installed on one side of each of the two clamping blocks 2, and a rotating plate 4 is fixedly installed at the output end of each of the two first motors 7. The first motor 7 can drive the rotating plate 4 to rotate. A rotating frame 3 is fixedly installed on the top surface of each of the two clamping blocks 2.

[0024] Two rotating shafts 301 are movably installed inside the rotating frame 3, and one end of each of the two rotating shafts 301 extends out of the rotating frame 3. Rotating rollers 302 are fixedly installed on one side of the outer surfaces of the two rotating shafts 301 inside the rotating frame 3. When the rotating shafts 301 rotate, the rotating rollers 302 can be driven to rotate.

[0025] Gears 308 are fixedly installed at one end of each of the two rotating shafts 301 extending out of the rotating frame 3, and two support blocks 303 are fixedly installed on one side of the outer surface of the rotating frame 3 where the gears 308 are located.

[0026] A first threaded rod 304 is movably installed on one side between the two support blocks 303, and a first sliding rod 305 is fixedly installed on the other side between the two support blocks 303. A rack 306 is threadedly connected to the outer surface of the first threaded rod 304, and the rack 306 is movably connected to the first sliding rod 305. When the first threaded rod 304 rotates, the rack 306 can be driven to move, and the first sliding rod 305 can prevent the rack 306 from rotating as the first threaded rod 304 rotates.

[0027] Both of the two gears 308 are meshed with the rack 306. A second motor 307 is fixedly installed on one side of the two support blocks 303, and the output end of the second motor 307 is fixedly connected to the first threaded rod 304. When the rack 306 moves, the two gears 308 can be rotated in the same direction, so that the seamless steel pipe placed between the two rotating rollers 302 can be rotated.

[0028] An inner support column 5 is fixedly installed on one side of the rotating plate 4. A plurality of extension rods 605 are movably installed inside the inner support column 5, and the extension rods 605 extend out of the inner support column 5. A support plate 606 is fixedly installed at one end of the extension rods 605 extending out of the inner support column 5. A third motor 603 is fixedly installed inside the inner support column 5, and the output end of the third motor 603 is fixedly installed with a driving plate 604. A plurality of openings are formed on one side of the driving plate 604. A contact rod is fixedly installed on one side of the extension rod 605 located inside the inner support column 5, and the contact rod is movably connected to the openings of the driving plate 604. When the third motor 603 drives the driving plate 604 to rotate, the extension rods 605 can be pushed to move. Then, when the inner support column 5 is inserted into the seamless steel pipe, the extension rods 605 push the support plate 606 to move until it contacts the inner wall of the seamless steel pipe, so as to perform inner support clamping on the seamless steel pipe.

[0029] On one side of the rotating plate 4, two fixed plates 6 are fixedly installed, and the inner support column 5 is located between the two fixed plates 6. On the side of the two fixed plates 6 away from the rotating plate 4, second threaded rods 601 are threadedly connected. The opposite ends of the two second threaded rods 601 are movably connected to clamping plates 602. By rotating the second threaded rods 601, the clamping plates 602 can be pushed to move up and down. When the seamless steel pipe is clamped by the inner support column 5, the second threaded rods 601 can be rotated to push the clamping plates 602 to move up and down so that they contact the outer wall of the seamless steel pipe, thereby clamping and fixing both ends of the seamless steel pipe.

[0030] On one side of the top surface of the clamping block 2, a third threaded rod 201 is movably installed, and on the other side of the top surface of the clamping block 2, a second sliding rod 202 is fixedly installed. Two clamping arms 203 are threadedly connected to the outer surface of the third threaded rod 201, and both clamping arms 203 are movably connected to the second sliding rod 202. On one side of the outer surface of the clamping block 2, a fourth motor 204 is fixedly installed, and the output end of the fourth motor 204 is fixedly connected to the third threaded rod 201. There are two sections of opposite threads on the outer surface of the third threaded rod 201. When the fourth motor 204 drives the third threaded rod 201 to rotate, the two clamping arms 203 can clamp and fix the outer surface of the seamless steel pipe. Two different clamping methods are provided to facilitate the user to select a suitable clamping method according to the flaw detection method.

[0031] Inside the base 1, two slide rails 101 are fixedly installed. The outer surfaces of the two slide rails 101 are jointly movably connected to two moving blocks 102, and the moving blocks 102 can move along the two slide rails 101.

[0032] Moreover, the two moving blocks 102 are respectively fixedly connected to the two clamping blocks 2. When the two moving blocks 102 move, the distance between the two clamping blocks 2 can be adjusted.

[0033] Inside the base 1, two movable rods 103 are fixedly installed, and the two movable rods 103 are located above the two slide rails 101. The outer surfaces of the two movable rods 103 are jointly movably connected to a connecting block 104. On both sides of the connecting block 104, driving arms 106 are movably installed, and the two driving arms 106 are respectively movably connected to the two moving blocks 102. On one side inside the base 1, a cylinder 105 is fixedly installed, and the output end of the cylinder 105 is fixedly connected to the connecting block 104. The cylinder 105 pushes the connecting block 104 to move along the movable rod 103. When the connecting block 104 moves, the two driving arms 106 can push the two moving blocks 102 to move in opposite directions to adjust the distance between the two moving blocks 102.

[0034] The working principle of the present utility model is as follows: Start the cylinder 105, and the cylinder 105 pushes the connecting block 104 to move along the movable rod 103. When the connecting block 104 moves, the two driving arms 106 can push the two moving blocks 102 to move in opposite directions to adjust the distance between the two moving blocks 102 so that the distance between the two moving blocks 102 conforms to the length of the seamless steel pipe. Insert the two inner support columns 5 into both ends of the seamless steel pipe, start the third motor 603, and the extension rod 605 can push the support plate 606 to move until it contacts the inner wall of the seamless steel pipe, so as to perform inner support clamping on the seamless steel pipe. Then rotate the second threaded rod 601 to push the clamping plate 602 to move up and down until it contacts the outer wall of the seamless steel pipe, thereby clamping and fixing both ends of the seamless steel pipe. Start the first motor 7 to drive the rotating plate 4 to rotate, and the seamless steel pipe clamped in this way can be rotated. The seamless steel pipe can also be placed on the top surfaces of the two rotating frames 3. Start the fourth motor 204 to drive the third threaded rod 201 to rotate, and the two clamping arms 203 can clamp and fix the outer surface of the seamless steel pipe. Start the second motor 307 to drive the first threaded rod 304 to rotate, and the rack 306 can move. When the rack 306 moves, the two gears 308 can rotate in the same direction, and the seamless steel pipe placed between the two rotating rollers 302 can be rotated.

[0035] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A clamping device for seamless steel pipe flaw detection, comprising a base (1), characterized in that: The top surface of the base (1) is provided with two clamping blocks (2) for clamping seamless steel pipes. A first motor (7) is fixedly installed on one side of each of the two clamping blocks (2), and a rotating plate (4) is fixedly installed at the output end of each of the two first motors (7). A rotating frame (3) is fixedly installed on the top surface of each of the two clamping blocks (2). Two rotating shafts (301) are movably installed inside the rotating frame (3), and one end of each of the two rotating shafts (301) extends out of the rotating frame (3). A rotating roller (302) is fixedly installed on one side of the outer surface of each of the two rotating shafts (301) inside the rotating frame (3). A gear (308) is fixedly installed at one end of each of the two rotating shafts (301) extending out of the rotating frame (3). Two support blocks (303) are fixedly installed on the outer surface of the rotating frame (3) on one side of the gear (308). A first threaded rod (304) is movably installed on one side between the two support blocks (303), and a first sliding rod (305) is fixedly installed on the other side between the two support blocks (303). A rack (306) is threadedly connected to the outer surface of the first threaded rod (304), and the rack (306) is movably connected to the first sliding rod (305). Both of the two gears (308) are engaged with the rack (306). A second motor (307) is fixedly installed on one side of the two support blocks (303), and the output end of the second motor (307) is fixedly connected to the first threaded rod (304).

2. The clamping device for seamless steel pipe flaw detection according to claim 1, characterized in that: An inner support column (5) is fixedly installed on one side of the rotating plate (4). A plurality of extension rods (605) are movably installed inside the inner support column (5), and the extension rods (605) extend out of the inner support column (5). A support plate (606) is fixedly installed at one end of the extension rod (605) extending out of the inner support column (5). A third motor (603) is fixedly installed inside the inner support column (5), and a driving plate (604) is fixedly installed at the output end of the third motor (603). A plurality of openings are formed on one side of the driving plate (604). A contact rod is fixedly installed on one side of the extension rod (605) inside the inner support column (5), and the contact rod is movably connected to the opening of the driving plate (604). Two fixing plates (6) are fixedly installed on one side of the rotating plate (4), and the inner support column (5) is located between the two fixing plates (6). A second threaded rod (601) is threadedly connected to one side of each of the two fixing plates (6) away from the rotating plate (4), and a clamping plate (602) is movably connected to one end of each of the two second threaded rods (601) facing each other.

3. The clamping device for seamless steel pipe flaw detection according to claim 1, characterized in that: A third threaded rod (201) is movably installed on one side of the top surface of the clamping block (2), and a second sliding rod (202) is fixedly installed on the other side of the top surface of the clamping block (2). Two clamping arms (203) are threadedly connected to the outer surface of the third threaded rod (201), and both clamping arms (203) are movably connected to the second sliding rod (202). The rotating frame (3) is located between the two clamping arms (203). A fourth motor (204) is fixedly installed on one side of the outer surface of the clamping block (2), and the output end of the fourth motor (204) is fixedly connected to the third threaded rod (201).

4. The clamping device for seamless steel pipe flaw detection according to claim 3, wherein: Rubber gaskets are fixedly installed on the opposite sides of the two clamping arms (203).

5. The clamping device for seamless steel pipe flaw detection according to claim 3, wherein: Two sections of opposite threads are provided on the outer surface of the third threaded rod (201).

6. The clamping device for seamless steel pipe flaw detection according to claim 1, characterized in that: Two sliding rails (101) are fixedly installed inside the base (1). Two moving blocks (102) are movably connected to the outer surfaces of the two sliding rails (101) together, and the two moving blocks (102) are respectively fixedly connected to the two clamping blocks (2). Two movable rods (103) are fixedly installed inside the base (1), and the two movable rods (103) are located above the two sliding rails (101). A connecting block (104) is movably connected to the outer surfaces of the two movable rods (103) together. Driving arms (106) are movably installed on both sides of the connecting block (104), and the two driving arms (106) are respectively movably connected to the two moving blocks (102). A cylinder (105) is fixedly installed on one side inside the base (1), and the output end of the cylinder (105) is fixedly connected to the connecting block (104).

Images