Clamping device for machining large-diameter ultra-thin-wall seamless tube for aviation

Abstract

The utility model relates to the technical field of thin-wall seamless tube clamping devices, and discloses a clamping device for machining an aviation large-diameter ultra-thin-wall seamless tube, which comprises a bottom plate, two bearing seats are fixedly connected to the upper surface of the bottom plate, a clamping mechanism is jointly arranged in the two bearing seats, and a turnover mechanism is arranged above the bottom plate; the clamping mechanism comprises two connecting cylinders, each connecting cylinder is rotationally connected with the inner wall of the bearing seat, and fixing frames are fixedly connected to the side faces, close to each other, of the two connecting cylinders. According to the clamping device for machining the large-diameter extremely-thin-wall seamless pipe for aviation, the thin-wall seamless pipe can be clamped and fixed on one side, and other square connecting pieces can be clamped on the other side, so that the clamping device for machining the thin-wall seamless pipe is matched with a clamping mechanism, and the thin-wall seamless pipes of different specifications can be clamped; and meanwhile, when the thin-wall seamless pipe and other square connecting pieces are welded, an additional welding clamp is not needed, and the clamping adaptability of the thin-wall seamless pipe clamping device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thin-wall seamless pipe clamping devices, in particular to a clamping device for processing large-diameter ultra-thin-wall seamless pipes for aviation. Background Art

[0002] Thin-walled seamless steel pipes are made by perforating steel ingots or solid tubes into rough tubes, and then hot-rolled, cold-rolled or cold-drawn. The materials are divided into ordinary tubes and alloy tubes. The application range of thin-walled seamless steel pipes is very wide. For example, in aviation, large-diameter and ultra-thin seamless tubes are used as fuel delivery pipelines, etc. Thin-walled seamless steel pipes sometimes need to be butt-welded after cutting. Therefore, in order to increase the stability of thin-walled seamless steel pipes during processing, clamping devices are usually used to fix the position of thin-walled seamless steel pipes using clamps, which is convenient for welding and other operations on thin-walled seamless steel pipes.

[0003] The utility model with the existing authorization announcement number CN221088733U discloses a seamless steel pipe processing clamping device, including a fixing component and an adjusting component. The fixing component includes a first fixing plate, a second fixing plate, a positioning groove, a groove, a slide groove, a slider and a fixing plate; the adjusting component includes an adjusting plate, a mounting seat, a fixing sleeve, an arc-shaped connecting plate, a semi-annular plate and a cylinder.

[0004] By adopting the above technical scheme, the device is easy to use and simple to operate through the fixing component. When the fixing device needs to be removed, it is only necessary to press the pressure plate downward to disengage the plug column from the plug hole, and the rubber pad is driven to move by the adjusting plate to adjust the distance between the two rubber pads. When it reaches the appropriate distance, the positioning rod is inserted into the positioning hole to fix the position of the adjusting plate, so as to clamp pipes of different diameters. By setting the cylinder and the clamping plate, the top of the pipe can be fixed to better fix the pipe. However, the thin-walled seamless steel pipe clamping device of the above technical scheme can only assist in welding processing and clamping between two thin-walled seamless steel pipes when in use. When the thin-walled seamless steel pipe needs to be welded with other square connecting frames, an additional clamping device is required to fix the thin-walled seamless steel pipe and the square connecting piece, which greatly affects the adaptability of the thin-walled seamless steel pipe processing clamping auxiliary of the thin-walled seamless steel pipe clamping device, increases the use cost of the thin-walled seamless steel pipe clamping device, and causes the thin-walled seamless steel pipe clamping device to be unable to adapt to the processing needs of thin-walled seamless steel pipes of different specifications as needed.

[0005] Therefore, those skilled in the art provide a clamping device for processing large-diameter ultra-thin-wall seamless pipes for aviation to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0006] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a clamping device for machining large-diameter and ultra-thin-wall seamless pipes for aviation, so as to solve the problems raised in the above-mentioned background technology.

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

[0008] A clamping device for processing large-caliber ultra-thin-wall seamless pipes for aviation, comprising a bottom plate, two bearing seats are fixedly connected to the upper surface of the bottom plate, a clamping mechanism is commonly arranged inside the two bearing seats, and a flipping mechanism is arranged above the bottom plate;

[0009] The clamping mechanism includes two connecting cylinders, each of which is rotatably connected to the inner wall of the bearing seat, and the two connecting cylinders are fixedly connected to a fixing frame on one side close to each other, and a large bevel gear is rotatably connected to the inside of each fixing frame. A servo motor is arranged above each fixing frame, and the output end of each servo motor power passes through the fixing frame and is fixedly connected to a small bevel gear, and the small bevel gear is meshed with the large bevel gear, and two moving seats are slidably connected to the inside of each fixing frame, and each moving seat is meshed with the large bevel gear, and a clamping block is clamped inside each moving seat, and a side of each clamping block away from the moving seat is fixedly connected to the clamping seat, and a fixing bolt is threadedly connected to the inside of each clamping block, and each fixing bolt is threadedly connected to the moving seat;

[0010] The flipping mechanism includes a rotating rod, the outer surface of which is rotatably connected to two limit frames, the side surfaces of the two limit frames that are close to each other are respectively fixedly connected to the side surfaces of the two bearing seats that are away from each other, the outer surface of the rotating rod is fixedly connected to two first gears, the interior of each of the limit frames is rotatably connected to a worm, each of the worms is rotatably connected to the interior of the bearing seats, the outer surface of each worm is fixedly connected to a second gear, each of the second gears is threadedly connected to the first gear, the outer surface of each connecting cylinder is fixedly connected to a worm wheel, and each of the worm wheels is threadedly connected to the worm, a stepper motor is arranged on the left side of one of the limit frames, and the output end of the stepper motor power is fixedly connected to the left end of one of the worms.

[0011] As a further solution of the utility model: the front and back sides of the base plate are fixedly connected with mounting plates, the interior of each mounting plate is threadedly connected with mounting bolts, and the bottom end of each mounting bolt passes through the mounting plate and extends to the bottom of the mounting plate.

[0012] As a further solution of the utility model: two reinforcing ribs are fixedly connected to the side surfaces of the two bearing seats close to each other, and the bottom surface of each reinforcing rib is fixedly connected to the upper surface of the bottom plate.

[0013] As a further solution of the utility model: the right side surface of each servo motor is fixedly connected with a stabilizing seat, and the bottom surface of each stabilizing seat is fixedly connected to the outer surface of the fixing frame.

[0014] As a further solution of the utility model: two auxiliary bearings are sleeved on the outer surface of the rotating rod, and each of the auxiliary bearings is fixedly embedded in the interior of the bearing seat.

[0015] As a further solution of the utility model: the front and back sides of each limit frame are fixedly connected with reinforcement blocks, the side surfaces of the two groups of reinforcement blocks that are close to each other are respectively fixedly connected to the side surfaces of the two bearing seats that are far away from each other, and the number of reinforcement blocks in each group is two.

[0016] As a further solution of the utility model: the bottom surface of the stepper motor is fixedly connected to a limit seat, and the right side surface of the limit seat is fixedly connected to the left side surface of one of the limit frames.

[0017] Compared with the prior art, the clamping device for processing large-diameter and ultra-thin-wall seamless pipes for aviation has the following beneficial effects:

[0018] The utility model is provided with a servo motor provided with power to cooperate with the fixing frame, which can drive the small bevel gear to rotate, and then cooperate with the meshing connection relationship to drive the large bevel gear to rotate. At this time, the fixed frame can limit the movable seat to drive the two clamping seats to approach each other synchronously, and then the arc surface on the clamping seat can be used to clamp different thin-walled seamless steel pipes, while maintaining the concentricity of the two thin-walled seamless steel pipes that need to be processed to increase the quality of other processing such as welding. In addition, a flat groove is provided on the clamping seat, so that one side can clamp and fix the thin-walled seamless steel pipe and the other side can clamp the square connector, so that the thin-walled seamless steel pipe clamping device cooperates with the clamping mechanism to not only clamp large-diameter ultra-thin seamless steel pipes of different specifications for aviation, but also does not need to use another clamping device when welding the thin-walled seamless steel pipe and the square connector, which effectively increases the clamping of the thin-walled seamless steel pipe. The device has the effect of clamping adaptability. The clamping seat can be removed from the moving seat and replaced with clamping seats of different specifications through the clamping block and the fixing bolt to adapt to a wider range of thin-walled seamless steel pipe clamping work. The power provided by the stepping motor and the limit frame can drive the left worm to rotate. When the left worm rotates, the meshing relationship between the second gear and the first gear and the rotating rod can drive the right worm to rotate, thereby realizing the synchronous rotation of the worm wheels on both sides. At this time, the bearing seat and the connecting tube can drive the fixed frame to rotate forty-five degrees or ninety degrees. After the thin-walled seamless steel pipe is clamped and fixed, it can be flipped according to the processing needs such as welding, thereby further increasing the clamping auxiliary adaptability of the thin-walled seamless steel pipe clamping device, so that the thin-walled seamless steel pipe clamping device can cooperate with the flipping mechanism to adapt to the processing needs of thin-walled seamless steel pipes in different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a clamping device for processing large-diameter and ultra-thin-wall seamless pipes for aviation;

[0020] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of a fixing frame in a clamping device for processing large-diameter and ultra-thin-wall seamless pipes for aviation;

[0021] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of a clamping seat in a clamping device for processing large-diameter and ultra-thin-wall seamless pipes for aviation;

[0022] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of a bearing seat in a clamping device for processing large-diameter and ultra-thin-wall seamless pipes for aviation;

[0023] Figure 5 The diagram is a three-dimensional structural diagram of a rotating rod in a clamping device for processing large-diameter and ultra-thin-wall seamless pipes for aviation.

[0024] In the figure: 1. bottom plate; 2. bearing seat; 3. clamping mechanism; 301. connecting tube; 302. fixing frame; 303. large bevel gear; 304. servo motor; 305. small bevel gear; 306. moving seat; 307. clamping block; 308. fixing bolt; 309. clamping seat; 4. turning mechanism; 401. rotating rod; 402. limiting frame; 403. first gear; 404. worm; 405. second gear; 406. worm wheel; 407. stepping motor; 5. mounting bolt; 6. reinforcing rib; 7. stabilizing seat; 8. auxiliary bearing; 9. reinforcement block; 10. limiting seat; 11. mounting plate. DETAILED DESCRIPTION

[0025] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0026] See also Figure 1-5 A clamping device for processing large-diameter ultra-thin-wall seamless pipes for aviation includes a base plate 1. Two bearing seats 2 are fixedly connected to the upper surface of the base plate 1. Bearings are installed on the inner walls of the bearing seats 2. A clamping mechanism 3 is commonly arranged inside the two bearing seats 2. A flip mechanism 4 is arranged above the base plate 1. The front and back sides of the base plate 1 are fixedly connected to mounting plates 11. The interior of each mounting plate 11 is threadedly connected with mounting bolts 5. The bottom end of each mounting bolt 5 penetrates the mounting plate 11 and extends to the bottom of the mounting plate 11. The mounting plate 11 cooperates with the mounting bolts 5 to fix the device at the position required for work, which increases the installation convenience and firmness of the device.

[0027] The clamping mechanism 3 includes two connecting cylinders 301, each of which is rotatably connected to the inner wall of the bearing seat 2, and the side surfaces of the two connecting cylinders 301 that are close to each other are fixedly connected to a fixing frame 302, and the interior of each fixing frame 302 is rotatably connected to a large bevel gear 303, and a servo motor 304 is arranged above each fixing frame 302. The output end of the power of each servo motor 304 passes through the fixing frame 302 and is fixedly connected to a small bevel gear 305, and the small bevel gear 305 is meshed with the large bevel gear 303. The side surfaces of the two bearing seats 2 that are close to each other are fixedly connected to two reinforcing ribs 6, and the bottom surface of each reinforcing rib 6 is fixedly connected to the upper surface of the base plate 1. The reinforcing ribs 6 can increase the connection firmness between the bearing seat 2 and the base plate 1, prevent the bearing seat 2 from loosening with the base plate 1, and improve the pressure bearing capacity of the bearing seat 2.

[0028] The interior of each fixed frame 302 is slidably connected to two movable seats 306, each movable seat 306 is meshed with the large bevel gear 303, and the interior of each movable seat 306 is clamped with a clamping block 307, and each clamping block 307 is fixedly connected to a clamping seat 309 on the side away from the movable seat 306, and the inner walls of the clamping seat 309 are respectively provided with an arc groove and a plane groove, and the right side of each servo motor 304 is fixedly connected to a stabilizing seat 7, and the bottom surface of each stabilizing seat 7 is fixedly connected to the outer surface of the fixed frame 302, and the stabilizing seat 7 can fix the position of the servo motor 304 to ensure that the servo motor 304 can smoothly drive the small bevel gear 305 to rotate.

[0029] The interior of each clamping block 307 is threadedly connected with a fixing bolt 308, and each fixing bolt 308 is threadedly connected to the movable seat 306. The outer surface of the rotating rod 401 is sleeved with two auxiliary bearings 8, and each auxiliary bearing 8 is fixedly embedded in the interior of the bearing seat 2. The auxiliary bearings 8 can reduce the wear between the rotating rod 401 and the bearing seat 2 without affecting the smooth rotation of the rotating rod 401, thereby improving the rotation smoothness of the rotating rod 401.

[0030] The flipping mechanism 4 includes a rotating rod 401, and the outer surface of the rotating rod 401 is rotatably connected to two limit frames 402, and the side surfaces of the two limit frames 402 that are close to each other are respectively fixedly connected to the side surfaces of the two bearing seats 2 that are away from each other, and the outer surface of the rotating rod 401 is fixedly connected to two first gears 403, and the front and back sides of each limit frame 402 are fixedly connected to reinforcement blocks 9, and the side surfaces of the two groups of reinforcement blocks 9 that are close to each other are respectively fixedly connected to the side surfaces of the two bearing seats 2 that are away from each other, and the number of reinforcement blocks 9 in each group is two. The reinforcement blocks 9 can reinforce the limit frame 402, so that the connection between the limit frame 402 and the bearing seat 2 is more stable and reliable, thereby improving the service life of the limit frame 402.

[0031] A worm 404 is rotatably connected to the interior of each limit frame 402, and each worm 404 is rotatably connected to the interior of the bearing seat 2. A second gear 405 is fixedly connected to the outer surface of each worm 404, and each second gear 405 is threadedly connected to the first gear 403. A worm wheel 406 is fixedly connected to the outer surface of each connecting cylinder 301, and each worm wheel 406 is threadedly connected to the worm 404. A stepper motor 407 is arranged on the left side of one of the limit frames 402. The stepper motor 407 is an electric motor that converts an electrical pulse signal into a corresponding angular displacement or linear displacement. Each time a pulse signal is input, the rotor rotates an angle or moves forward. The angular displacement or linear displacement outputted by the stepper motor 407 is proportional to the number of input pulses, and the rotation speed is proportional to the pulse frequency. Since the stepper motor 407 is a device that can convert electrical pulses into discrete mechanical motions, it has good data control characteristics. The output end of the power of the stepper motor 407 is fixedly connected to the left end of one of the worm gears 404, and the bottom surface of the stepper motor 407 is fixedly connected to a limit seat 10, and the right side surface of the limit seat 10 is fixedly connected to the left side surface of one of the limit frames 402. The limit seat 10 can limit the position of the stepper motor 407, so that the stepper motor 407 is not prone to excessive loosening, thereby improving the stability of the stepper motor 407.

[0032] The working principle of the utility model is: when in use, first connect the servo motor 304 and the stepper motor 407 to the power supply, then use the mounting plate 11 and the mounting bolts 5 to install and fix the device in the working position. When it is necessary to process the thin-walled seamless steel pipe, first insert the two thin-walled seamless steel pipes through the hollow position of the fixing frame 302 and insert them between the two fixing frames 302. At this time, the power provided by the servo motor 304 cooperates with the limit of the stable seat 7 to drive the small bevel gear 305 to rotate, and then cooperates with the meshing connection relationship to drive the large bevel gear 303 to rotate. At this time, cooperate with the limit of the fixed frame 302 on the moving seat 306, The two clamping seats 309 are driven to approach each other synchronously, and then the concave arc surface on the clamping seat 309 can be used to adapt to the convex arc surface on the outer surface of the thin-walled seamless steel pipe. At this time, the position of the thin-walled seamless steel pipe can be clamped and fixed. Therefore, the distance change between the two clamping seats 309 can be used to clamp thin-walled seamless steel pipes of different specifications. At the same time, since the two clamping seats 309 are synchronously approached to each other, the concentricity of the two thin-walled seamless steel pipes to be processed can be maintained to increase the quality of welding and other processing. In addition, a flat groove is provided on the clamping seat 309, so that one side can clamp and fix the thin-walled seamless steel pipe and the other side can clamp the square connector, so that the thin-walled seamless steel pipe clamp The holding device cooperates with the clamping mechanism 3 not only to clamp large-diameter and ultra-thin seamless steel pipes for aviation of different specifications, but also does not need to use another clamping device when welding thin-walled seamless steel pipes and square connectors, which effectively increases the clamping adaptability of the thin-walled seamless steel pipe clamping device. The clamping seat 309 can be removed from the movable seat 306 by the clamping block 307 and the fixing bolt 308 to replace the clamping seats 309 of different specifications to adapt to a wider range of thin-walled seamless steel pipe clamping work. Finally, the power provided by the stepping motor 407 cooperates with the limit of the limit frame 402 and the limit seat 10 to drive the left worm 404 to rotate, and when the left worm 404 rotates, The right worm 404 is driven to rotate through the meshing relationship between the second gear 405 and the first gear 403 and the rotating rod 401, thereby realizing the synchronous rotation of the worm wheels 406 on both sides. At this time, the bearing seat 2 cooperates with the connecting tube 301 and the stepping motor 407 to accurately set the number of rotation circles and the specific rotation angle, and can drive the fixed frame 302 to rotate forty-five degrees or ninety degrees as needed, so that the thin-walled seamless steel pipe can be clamped and fixed and then flipped according to the processing needs such as welding, further increasing the clamping adaptability of the thin-walled seamless steel pipe clamping device, so that the thin-walled seamless steel pipe clamping device can cooperate with the flipping mechanism 4 to adapt to the processing needs of different positions.

[0033] 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, improvements, etc. 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 processing large-diameter and ultra-thin-wall seamless pipes for aviation, comprising a bottom plate (1), characterized in that: Two bearing seats (2) are fixedly connected to the upper surface of the bottom plate (1), a clamping mechanism (3) is commonly provided inside the two bearing seats (2), and a turning mechanism (4) is provided above the bottom plate (1); The clamping mechanism (3) comprises two connecting tubes (301), each of which is rotatably connected to the inner wall of the bearing seat (2), and a fixing frame (302) is fixedly connected to the side surfaces of the two connecting tubes (301) close to each other, and a large bevel gear (303) is rotatably connected inside each of the fixing frames (302), and a servo motor (304) is arranged above each of the fixing frames (302), and the output end of the power of each of the servo motors (304) passes through the fixing frame (302) and is fixedly connected to a small bevel gear (305), and the small bevel gear (305) ) is meshed with the large bevel gear (303), each of the fixed frames (302) is slidably connected to two moving seats (306), each of the moving seats (306) is meshed with the large bevel gear (303), each of the moving seats (306) is clamped with a clamping block (307) inside, each of the clamping blocks (307) is fixedly connected with a clamping seat (309) on a side away from the moving seat (306), each of the clamping blocks (307) is threadedly connected with a fixing bolt (308), and each of the fixing bolts (308) is threadedly connected to the moving seat (306); The turning mechanism (4) comprises a rotating rod (401), the outer surface of the rotating rod (401) is rotatably connected to two limit frames (402), the side surfaces of the two limit frames (402) close to each other are fixedly connected to the side surfaces of the two bearing seats (2) away from each other, the outer surface of the rotating rod (401) is fixedly connected to two first gears (403), the interior of each of the limit frames (402) is rotatably connected to a worm (404), and each of the worms (404) is rotatably connected to the interior of the bearing seat (2). The outer surface of each worm (404) is fixedly connected to a second gear (405), and each of the second gears (405) is threadedly connected to the first gear (403). The outer surface of each connecting tube (301) is fixedly connected to a worm wheel (406), and each of the worm wheels (406) is threadedly connected to the worm (404). A stepper motor (407) is arranged on the left side of one of the limit frames (402), and the output end of the power of the stepper motor (407) is fixedly connected to the left end of one of the worms (404).

2. A clamping device for processing large-diameter and ultra-thin-wall seamless pipes for aviation according to claim 1, characterized in that: The front and back sides of the base plate (1) are fixedly connected to mounting plates (11), the interior of each mounting plate (11) is threadedly connected to a mounting bolt (5), and the bottom end of each mounting bolt (5) passes through the mounting plate (11) and extends to the bottom of the mounting plate (11).

3. The clamping device for processing large-diameter and ultra-thin-wall seamless pipes for aviation according to claim 1, characterized in that: Two reinforcing ribs (6) are fixedly connected to the side surfaces of the two bearing seats (2) that are close to each other, and the bottom surface of each reinforcing rib (6) is fixedly connected to the upper surface of the bottom plate (1).

4. The clamping device for processing large-diameter and ultra-thin-wall seamless pipes for aviation according to claim 1, characterized in that: The right side surface of each servo motor (304) is fixedly connected to a stabilizing seat (7), and the bottom surface of each stabilizing seat (7) is fixedly connected to the outer surface of the fixing frame (302).

5. The clamping device for processing large-diameter and ultra-thin-wall seamless pipes for aviation according to claim 1, characterized in that: Two auxiliary bearings (8) are sleeved on the outer surface of the rotating rod (401), and each of the auxiliary bearings (8) is fixedly embedded in the interior of the bearing seat (2).

6. The clamping device for processing large-diameter and ultra-thin-wall seamless pipes for aviation use according to claim 1, characterized in that: The front and back sides of each of the limiting frames (402) are fixedly connected with reinforcement blocks (9); the sides of the two groups of reinforcement blocks (9) that are close to each other are respectively fixedly connected to the sides of the two bearing seats (2) that are far away from each other; and the number of reinforcement blocks (9) in each group is two.

7. The clamping device for processing large-diameter and ultra-thin-wall seamless pipes for aviation according to claim 1, characterized in that: The bottom surface of the stepper motor (407) is fixedly connected to the limit seat (10), and the right side surface of the limit seat (10) is fixedly connected to the left side surface of one of the limit frames (402).

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