Clamping and fixing device for processing seamless steel tube for nuclear power station
By designing a clamping and fixing device suitable for nuclear power plants, precise and stable clamping of seamless steel pipes of different lengths was achieved, solving the problems of insufficient adaptability and stability of traditional devices and improving processing efficiency and quality.
Patent Information
- Application Number
- CN202423239335.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Traditional seamless steel pipe clamping and fixing devices are difficult to adapt to steel pipes of different lengths, and their clamping stability and accuracy are insufficient, affecting processing precision and efficiency.
A clamping and fixing device including a clamping device and an anti-detachment device was designed. The clamping device achieves precise clamping of both ends of the steel pipe through a bidirectional screw driven by a motor, and the anti-detachment device provides a reaction force through a linkage mechanism to ensure that the steel pipe does not fall off or shift.
The versatility and stability of the clamping device have been improved, ensuring the safety and quality of processing, adapting to steel pipes of different lengths, and preventing them from falling off or shifting during processing.
Smart Images
Figure CN223589218U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of seamless steel pipe processing technology, and specifically relates to a clamping and fixing device for the processing of seamless steel pipes for nuclear power plants. BACKGROUND
[0002] In the construction and operation of nuclear power plants, the processing of seamless steel pipes is of great importance. The traditional clamping and fixing device for seamless steel pipes has many problems. On the one hand, it is often difficult to effectively adapt to seamless steel pipes of different lengths, and in actual production, the clamping device needs to be frequently replaced or adjusted, which not only increases the complexity of operation and labor intensity, but also reduces production efficiency, making it difficult to meet the needs of nuclear power plant construction for the processing of seamless steel pipes of various specifications. On the other hand, the clamping stability and accuracy of the traditional device are insufficient, and in the processing process, especially when high-precision processing operations are involved, the steel pipe is prone to slight displacement, affecting the processing precision and leading to unstable product quality.
[0003] In view of this, the clamping and fixing device for the processing of seamless steel pipes for nuclear power plants is designed to solve the above problems through the clamping device and the anti-dropping device. The clamping device realizes the clamping action on both ends of the seamless steel pipe, and can adapt to seamless steel pipes of different lengths. The anti-dropping device applies a counterforce to the seamless steel pipe through a linkage mechanism, so that the clamping jaw tightly clamps the seamless steel pipe, improving the processing quality and safety. SUMMARY
[0004] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve its technical problems is as follows: a clamping and fixing device for the processing of seamless steel pipes for nuclear power plants, comprising: a base, the inner wall of the base is fixedly connected with a workbench; a clamping device, the outer wall of the clamping device is slidingly connected with the outer wall of the base, the clamping device is used for clamping both ends of a seamless steel pipe for auxiliary processing; the clamping device comprises a bracket, the outer wall of the top of the bracket is fixedly connected with a DC motor, the output end of the DC motor is fixedly connected with a bidirectional screw rod, the outer wall of the bidirectional screw rod is symmetrically screw-connected with a sliding block, a limiting groove is formed in the wall of the sliding block, the outer wall of the top of the sliding block is fixedly connected with an anti-dropping device, by setting the clamping device, the clamping action on both ends of the seamless steel pipe is realized. This clamping method can adapt to seamless steel pipes of different lengths, improving the versatility of the device, and precise control is realized through motor driving, ensuring the stability and accuracy of clamping.
[0005] Preferably, the inner wall of the base is connected with the outer wall of the sliding block through a sliding groove, the sliding groove is arranged in the wall of the base, the outer walls of the two sides of the base are fixedly connected with the fixed blocks, the outer wall of the fixed block is fixedly connected with the limiting plate, the outer wall of the bidirectional screw rod is rotatably connected with the inner wall of the base, one end of the limiting plate away from the fixed block is fixedly connected with the outer wall of the base, the outer wall of the limiting plate is connected with the inner wall of the sliding block through a limiting groove, and the outer wall of the bidirectional screw rod is rotatably connected with the inner wall of the base.
[0006] Preferably, the anti-falling device comprises an L-shaped plate, the outer wall of the L-shaped plate is fixedly connected with a fixed disc, the inner wall of the fixed disc is slidably connected with a sliding column, the outer wall of the sliding column is fixedly connected with an extension column, the outer wall of the extension column is sleeved with a compression spring, the outer wall of the sliding column is fixedly connected with an extension block, one end of the extension block away from the sliding column is rotatably connected with a connecting rod, the inner wall of the connecting rod is rotatably connected with a clamping jaw, and the inner wall of the clamping jaw is fixedly connected with a limiting shaft.
[0007] Preferably, the outer wall of the limiting shaft is rotatably connected with the inner wall of the fixed disc, the outer wall of the extension column and the outer wall of the compression spring are fixedly connected with the outer wall of the L-shaped plate, one end of the compression spring away from the L-shaped plate is fixedly connected with the outer wall of the fixed disc, and the outer wall of the bottom of the L-shaped plate is fixedly connected with the outer wall of the top of the sliding block.
[0008] The beneficial effects of the utility model are as follows:
[0009] 1. The utility model discloses a clamping device, realize the clamping action to the both ends of seamless steel pipe, this clamping mode can adapt to seamless steel pipe of different length, improve the versatility of device, and realize accurate control through motor drive, guarantee the stability and accuracy of clamping.
[0010] 2. The utility model discloses an anti-falling device further ensures the stable clamping of seamless steel pipe, prevents the steel pipe from falling or displacing due to vibration or other external force in the processing, ensures the safety and stability of the processing, improves the processing quality. ACCURATE DRAWINGS
[0011] Figure 1 It is the perspective view of the utility model;
[0012] Figure 2 It is the internal structure schematic view of the utility model;
[0013] Figure 3 It is the structure schematic view of the clamping device of the utility model;
[0014] Figure 4 Figure is the structure diagram of the anti-falling device.
[0015] In the figure: 1, base; 2, clamping device; 3, sliding groove; 4, fixed block; 5, limiting plate; 6, workbench; 21, support; 22, DC motor; 23, bidirectional screw; 24, sliding block; 25, limiting groove; 26, anti-falling device; 261, L-shaped plate; 262, fixed disc; 263, sliding column; 264, telescopic column; 265, compression spring; 266, extension block; 267, connecting rod; 268, limiting shaft; 269, clamping jaw. DETAILED DESCRIPTION
[0016] The utility model makes further detailed explanation in combination with the drawings and specific implementation. The embodiment of the utility model is given for example and description, and is not exhaustive or limit the utility model to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The embodiment is selected and described to better illustrate the principle and practical application of the utility model, and enable those skilled in the art to understand the utility model to design various embodiments with various modifications suitable for specific purposes.
[0017] Embodiment: please refer to Figure 1 Figure 4 The utility model provides a kind of technical scheme: a kind of clamping fixing device for seamless steel pipe processing for nuclear power station, it include: base 1, the inner wall of base 1 is fixedly connected with workbench 6;Clamping device 2, the outer wall of clamping device 2 is slidably connected with the outer wall of base 1, and clamping device 2 is used to clamp the both ends of seamless steel pipe auxiliary processing;Clamping device 2 includes support 21, the outer wall of the top of support 21 is fixedly connected with DC motor 22, the output end of DC motor 22 is fixedly connected with bidirectional screw 23, the outer wall of bidirectional screw 23 is symmetrically screw-connected with sliding block 24, limiting groove 25 is formed in the wall of sliding block 24, the outer wall of the top of sliding block 24 is fixedly connected with anti-falling device 26, DC motor 22 drives bidirectional screw 23 to rotate, because bidirectional screw 23 is screw-connected with two sliding blocks 24, and sliding block 24 is slidably connected with base 1 through the sliding groove 3 in the wall of base 1, simultaneously under the cooperation of limiting plate 5 and limiting groove 25 on sliding block 24, sliding block 24 can only do linear relative motion along the axial direction of bidirectional screw 23, when bidirectional screw 23 rotates, two sliding blocks 24 will move towards or away from each other, to move away from or close to fixed block 4, realize the clamping action of the both ends of seamless steel pipe.
[0018] The inner wall of the base 1 is slidably connected with the outer wall of the sliding block 24 through the sliding groove 3, the sliding groove 3 is arranged in the wall of the base 1, the outer walls on both sides of the base 1 are fixedly connected with the fixed blocks 4, the outer wall of the fixed block 4 is fixedly connected with the limiting plate 5, the outer wall of the bidirectional screw 23 is rotatably connected with the inner wall of the base 1, one end of the limiting plate 5 away from the fixed block 4 is fixedly connected with the outer wall of the base 1, the outer wall of the limiting plate 5 is slidably connected with the inner wall of the sliding block 24 through the limiting groove 25, and the outer wall of the bidirectional screw 23 is rotatably connected with the inner wall of the base 1.
[0019] The anti-falling device 26 comprises an L-shaped plate 261, the outer wall of the L-shaped plate 261 is fixedly connected with a fixed disc 262, the inner wall of the fixed disc 262 is slidably connected with a sliding column 263, the outer wall of the sliding column 263 is fixedly connected with an extension column 264, the outer wall of the extension column 264 is sleeved with a compression spring 265, the outer wall of the sliding column 263 is fixedly connected with an extension block 266, one end of the extension block 266 away from the sliding column 263 is rotatably connected with a connecting rod 267, the inner wall of the connecting rod 267 is rotatably connected with a clamping jaw 269, the inner wall of the clamping jaw 269 is fixedly connected with a limiting shaft 268, in the non-clamping state, the compression spring 265 is in a natural state, and the clamping jaw 269 is in an open state, when the sliding block 24 drives the anti-falling device 26 to approach the seamless steel pipe, the seamless steel pipe first contacts the sliding column 263, along with continuous movement of the sliding block 24, the sliding column 263 is extruded by the steel pipe and drives the extension block 266 to move, and simultaneously drives the clamping jaw 269 to move through the connecting rod 267, at this moment, under the limitation of the limiting shaft 268, the sliding column 263 slides in the fixed disc 262, simultaneously, the compression spring 265 and the extension column 264 are compressed, the anti-falling device 26 acts reaction force on the seamless steel pipe through the linkage mechanism, so that the clamping jaw 269 tightly clamps the seamless steel pipe.
[0020] The outer wall of the limiting shaft 268 is rotatably connected with the inner wall of the fixed disc 262, the outer wall of the extension column 264 and the outer wall of the compression spring 265 are fixedly connected with the outer wall of the L-shaped plate 261, one end of the compression spring 265 away from the L-shaped plate 261 is fixedly connected with the outer wall of the fixed disc 262, and the outer wall of the bottom of the L-shaped plate 261 is fixedly connected with the outer wall of the top of the sliding block 24.
[0021] Working principle:
[0022] In use, the base 1 and the workbench 6 inside the base 1 provide a stable support basis for the whole device, and the workbench 6 can be used for placing the seamless steel pipe to be processed and related processing tools.
[0023] The clamping device 2 is slidably connected with the base 1 through the support 21, a direct current motor 22 is started, the direct current motor 22 drives the bidirectional screw rod 23 to rotate, since the bidirectional screw rod 23 is threadedly connected with the two sliding blocks 24, and the sliding blocks 24 are slidably connected with the base 1 through the sliding grooves 3 in the wall of the base 1, and the sliding blocks 24 can only move linearly in the axial direction of the bidirectional screw rod 23 under the cooperation of the limiting grooves 25 in the limiting plates 5 and the sliding blocks 24, when the bidirectional screw rod 23 rotates, the two sliding blocks 24 move towards each other or away from each other, thereby moving away from or approaching the fixed block 4, realizing the clamping action on the two ends of the seamless steel pipe, this clamping mode can adapt to seamless steel pipes of different lengths, improves the versatility of the device, and realizes precise control through motor driving, thereby guaranteeing the stability and accuracy of clamping, and being beneficial to improving the precision of subsequent processing;
[0024] The anti-falling device 26 further ensures the stable clamping of the seamless steel pipe, in the non-clamping state, the compression spring 265 is in a natural state, and the clamping jaw 269 is in an open state, when the sliding block 24 drives the anti-falling device 26 to approach the seamless steel pipe, the seamless steel pipe first contacts the sliding column 263, with the continuous movement of the sliding block 24, the sliding column 263 is extruded by the steel pipe to drive the extension block 266 to move, and the clamping jaw 269 is driven to move through the connecting rod 267, at this time, under the limiting of the limiting shaft 268, the sliding column 263 slides in the fixed disc 262, and the compression spring 265 and the telescopic column 264 are compressed, the anti-falling device 26 applies a reaction force on the seamless steel pipe through the linkage mechanism, so that the clamping jaw 269 tightly clamps the seamless steel pipe, preventing the steel pipe from falling or moving due to vibration or other external forces during processing, ensuring the safety and stability of the processing process, improving the processing quality, after processing is completed, the direct current motor 22 is started in reverse, the sliding block 24 moves in reverse, and then the L-shaped plate 261 and its fixed assembly move in reverse, the clamping jaw 269 opens under the reaction of the compression spring 265 after being compressed, the seamless steel pipe is loosened, the processed steel pipe is conveniently taken out, and the next processing operation is prepared.
[0025] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.
Claims
1. A clamping and fixing device for processing seamless steel pipes for nuclear power plants, characterized in that, Include: The inner wall of the base (1) is fixedly connected with the workbench (6); The outer wall of the clamping device (2) is slidably connected with the outer wall of the base (1), and the clamping device (2) is used for clamping the both ends of the seamless steel pipe for auxiliary machining; The clamping device (2) includes a support (21), the outer wall of the top of the support (21) is fixedly connected with a DC motor (22), the output end of the DC motor (22) is fixedly connected with a bidirectional screw rod (23), the outer wall of the bidirectional screw rod (23) is symmetrically screwed with a sliding block (24), the wall of the sliding block (24) is provided with a limiting groove (25), and the outer wall of the top of the sliding block (24) is fixedly connected with an anti-dropping device (26).
2. The clamping fixture for machining a seamless steel pipe for a nuclear power plant according to claim 1, characterized in that: The inner wall of the base (1) is slidably connected with the outer wall of the sliding block (24) through a sliding groove (3), and the sliding groove (3) is arranged in the wall of the base (1), the outer walls of the two sides of the base (1) are fixedly connected with a fixed block (4), and the outer wall of the fixed block (4) is fixedly connected with a limiting plate (5).
3. The clamping fixture for machining a seamless steel pipe for a nuclear power plant according to claim 2, characterized in that: The outer wall of the bidirectional screw rod (23) is rotatably connected with the inner wall of the base (1), one end of the limiting plate (5) away from the fixed block (4) is fixedly connected with the outer wall of the base (1), the outer wall of the limiting plate (5) is slidably connected with the inner wall of the sliding block (24) through the limiting groove (25), and the outer wall of the bidirectional screw rod (23) is rotatably connected with the inner wall of the base (1).
4. The clamping fixture for machining a seamless steel pipe for a nuclear power plant according to claim 1, characterized in that: The anti-dropping device (26) includes an L-shaped plate (261), the outer wall of the L-shaped plate (261) is fixedly connected with a fixed disc (262), the inner wall of the fixed disc (262) is slidably connected with a sliding column (263), the outer wall of the sliding column (263) is fixedly connected with a telescopic column (264), the outer wall of the telescopic column (264) is sleeved with a compression spring (265), the outer wall of the sliding column (263) is fixedly connected with an extension block (266), one end of the extension block (266) away from the sliding column (263) is rotatably connected with a connecting rod (267), the inner wall of the connecting rod (267) is rotatably connected with a clamping jaw (269), and the inner wall of the clamping jaw (269) is fixedly connected with a limiting shaft (268).
5. The clamping fixture for machining a seamless steel pipe for a nuclear power plant according to claim 4, characterized in that: The outer wall of the limiting shaft (268) is rotatably connected with the inner wall of the fixed disc (262), the outer wall of the telescopic column (264) and the outer wall of the compression spring (265) are fixedly connected with the outer wall of the L-shaped plate (261), and one end of the compression spring (265) away from the L-shaped plate (261) is fixedly connected with the outer wall of the fixed disc (262).
6. The clamping fixture for machining a seamless steel pipe for a nuclear power plant according to claim 4, characterized in that: The outer wall of the bottom of the L-shaped plate (261) is fixedly connected with the outer wall of the top of the sliding block (24).