A positioning jig for a bent pipe
The positioning and clamping assembly combining electromagnetic chuck and threaded hole solves the problem of poor adaptability of traditional pipe bending positioning fixtures, enabling convenient positioning of pipes with different curvatures and diameters, and improving processing efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO OUKAI INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-19
Smart Images

Figure CN224373802U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe bending positioning technology, specifically a pipe bending positioning clamp. Background Technology
[0002] In modern machinery manufacturing, building pipelines, automobile manufacturing and aerospace, pipe bends are key components for fluid transmission and structural support, and their processing accuracy directly affects the system's sealing performance and stability.
[0003] Traditional pipe bending positioning fixtures mostly use fixed slot clamps for fastening, restricting the degree of freedom of the pipe bending through clamping components of a preset shape. However, the pipe diameter or bending angle of pipe bending varies greatly, and existing fixtures are difficult to meet the needs of complex working conditions. Secondly, fixtures with fixed structures are only suitable for pipe bending of specific specifications. When the processing object changes, the fixture needs to be changed frequently or readjusted, which is time-consuming and labor-intensive. Therefore, there is an urgent need for a pipe bending positioning fixture to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a positioning clamp for bent pipes, so as to solve the problem mentioned in the background art that traditional positioning clamps are difficult to position pipes with different bends.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a positioning clamp for bending pipes, comprising a support frame, a fixing plate fixedly connected to the top surface of the support frame, and a positioning clamping assembly provided on the surface of the fixing plate;
[0006] The positioning and clamping assembly includes an electromagnetic chuck, which is disposed on the surface of a fixed plate. A mounting bracket is fixedly connected to the inner wall of the support frame, and a controller is fixedly connected to the side wall of the mounting bracket. Multiple fixed brackets are disposed on the surface of the electromagnetic chuck, and a clamping bracket is slidably connected to the inner wall of the fixed bracket. The controller is electrically connected to the electromagnetic chuck.
[0007] Preferably, the side wall of the clamping frame is provided with a threaded hole, and the inner wall of the threaded hole is threaded with a threaded post, one end of which abuts against the side wall of the fixing frame.
[0008] Preferably, the bottom surface of the fixing frame is provided with a fixing groove, and a pure iron plate is fixedly connected to the inner wall of the fixing groove.
[0009] Preferably, the surface of the fixing plate is provided with a positioning groove, and the electromagnetic chuck is fixedly connected to the inner wall of the positioning groove.
[0010] Preferably, the inner wall of the fixing frame and the inner wall of the clamping frame are both fixedly connected with rubber pads, and the two rubber pads are of the same size.
[0011] Preferably, a battery is fixedly connected to the side wall of the mounting bracket, the battery is electrically connected to the controller, and the battery is electrically connected to the electromagnetic chuck.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] The positioning and clamping components are designed to fix multiple brackets to the surface of the bent pipes of different curvatures. At the same time, the bottom surfaces of the multiple brackets are in contact with the surface of the electromagnetic chuck. The threaded holes and threaded posts work together to facilitate the clamping and fixing of bent pipes of different diameters. Then, the controller starts the electromagnetic chuck. Current passes through the coil inside the electromagnetic chuck to generate a magnetic field. The magnetic lines of force converge in the high permeability iron core, converting electrical energy into magnetic energy and forming a strong magnetic field. This magnetic field attracts the brackets on the surface of the electromagnetic chuck, thus facilitating the positioning of bent pipes of different curvatures. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the mounting bracket structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the threaded hole structure of this utility model.
[0017] In the diagram: 1. Support frame; 2. Fixing plate; 3. Positioning and clamping assembly; 301. Electromagnetic chuck; 302. Mounting bracket; 303. Controller; 304. Fixing bracket; 305. Clamping bracket; 306. Threaded hole; 307. Threaded post; 308. Rubber pad; 309. Fixing groove; 310. Pure iron plate; 311. Battery; 312. Positioning groove. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-3This utility model provides a positioning clamp for bending pipes, including a support frame 1. A fixing plate 2 is fixedly connected to the top surface of the support frame 1. A positioning clamping assembly 3 is provided on the surface of the fixing plate 2. The positioning clamping assembly 3 includes an electromagnetic chuck 301, which is disposed on the surface of the fixing plate 2. A mounting frame 302 is fixedly connected to the inner wall of the support frame 1. A controller 303 is fixedly connected to the side wall of the mounting frame 302. Multiple fixing frames 304 are provided on the surface of the electromagnetic chuck 301. A clamping frame 305 is slidably connected to the inner wall of the fixing frame 304. The controller 303 and... The electromagnetic chuck 301 is electrically connected. Through the positioning and clamping assembly 3, multiple fixing brackets 304 are fixed to the surface of the bent pipe. At the same time, the bottom surfaces of the multiple fixing brackets 304 are in contact with the surface of the electromagnetic chuck 301. Then, the controller 303 starts the electromagnetic chuck 301. The current passes through the coil inside the electromagnetic chuck 301 to generate a magnetic field. The magnetic lines of force converge in the high permeability iron core, converting electrical energy into magnetic energy and forming a strong magnetic field, which attracts the fixing brackets 304 on the surface of the electromagnetic chuck 301, thereby facilitating the positioning of bent pipes with different curvatures.
[0020] Furthermore, the side wall of the clamping frame 305 is provided with a threaded hole 306, and the inner wall of the threaded hole 306 is threaded with a threaded post 307. One end of the threaded post 307 abuts against the side wall of the fixing frame 304. The threaded hole 306, the threaded post 307 and the clamping frame 305 are used in cooperation to facilitate the clamping and fixing of bent pipes of different diameters.
[0021] Furthermore, a fixing groove 309 is provided on the bottom surface of the fixing frame 304, and a pure iron plate 310 is fixedly connected to the inner wall of the fixing groove 309. The pure iron plate 310 makes it easier for the electromagnetic chuck 301 to be attracted when the electromagnetic chuck 301 is magnetized, and makes it easier to disconnect from the electromagnetic chuck 301 when the electromagnetic chuck 301 is demagnetized.
[0022] Furthermore, a positioning groove 312 is provided on the surface of the fixing plate 2, and the electromagnetic chuck 301 is fixedly connected to the inner wall of the positioning groove 312. The positioning groove 312 facilitates the positioning of the electromagnetic chuck 301 and prevents the electromagnetic chuck 301 from shaking.
[0023] Furthermore, rubber pads 308 are fixedly connected to the inner walls of the fixing frame 304 and the clamping frame 305. The two rubber pads 308 are matched in size. The rubber pads 308 make it easier to increase the friction with the bent pipe, improve the stability of clamping, and also make it easier to protect the bent pipe and avoid damage to the bent pipe during clamping.
[0024] Furthermore, a storage battery 311 is fixedly connected to the side wall of the mounting bracket 302. The storage battery 311 is electrically connected to the controller 303 and the electromagnetic chuck 301. The storage battery 311 facilitates the supply of power to the controller 303 and the electromagnetic chuck 301 in the event of an abnormal power outage.
[0025] Working principle: During use, multiple fixing brackets 304 are fixed to the surface of the bent pipe according to the different curvatures of the pipe. At the same time, the bottom surfaces of the multiple fixing brackets 304 are in contact with the surface of the electromagnetic chuck 301. The threaded holes 306 and threaded posts 307 work together to adjust the distance between the fixing brackets 304 and the clamping frame 305 by rotating the threaded post 307. This makes it easy to clamp and fix bent pipes of different diameters. When multiple fixing brackets 304 are fixed to the surface of the bent pipe at the same time, the electromagnetic chuck 301 is activated by the controller 303. The current passes through the coil inside the electromagnetic chuck 301 to generate a magnetic field. The magnetic lines of force converge in the high permeability iron core, converting electrical energy into magnetic energy and forming a strong magnetic field. This magnetic field attracts the fixing brackets 304 on the surface of the electromagnetic chuck 301, thus facilitating the positioning of bent pipes of different curvatures.
[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A positioning jig for bending a pipe comprising a support frame (1), characterized in that: The top surface of the support frame (1) is fixedly connected to a fixing plate (2), and the surface of the fixing plate (2) is provided with a positioning clamping assembly (3); The positioning and clamping assembly (3) includes an electromagnetic chuck (301), which is disposed on the surface of the fixed plate (2). The inner wall of the support frame (1) is fixedly connected to a mounting frame (302), and the side wall of the mounting frame (302) is fixedly connected to a controller (303). The surface of the electromagnetic chuck (301) is provided with multiple fixed frames (304), and the inner wall of the fixed frame (304) is slidably connected to a clamping frame (305). The controller (303) is electrically connected to the electromagnetic chuck (301).
2. A positioning fixture for a bent pipe according to claim 1, characterized in that: The clamping frame (305) has a threaded hole (306) on its side wall, and a threaded post (307) is threadedly connected to the inner wall of the threaded hole (306). One end of the threaded post (307) abuts against the side wall of the fixing frame (304).
3. The positioning clamp for a bent pipe according to claim 1, characterized in that: The bottom surface of the fixing frame (304) is provided with a fixing groove (309), and a pure iron plate (310) is fixedly connected to the inner wall of the fixing groove (309).
4. The positioning clamp for a bent pipe according to claim 1, characterized in that: The surface of the fixing plate (2) is provided with a positioning groove (312), and the electromagnetic chuck (301) is fixedly connected to the inner wall of the positioning groove (312).
5. A positioning clamp for a bent pipe according to claim 1, characterized in that: The inner wall of the fixing frame (304) and the inner wall of the clamping frame (305) are both fixedly connected with rubber pads (308), and the two rubber pads (308) are matched in size.
6. A positioning clamp for a bent pipe according to claim 1, characterized in that: A battery (311) is fixedly connected to the side wall of the mounting bracket (302). The battery (311) is electrically connected to the controller (303) and the electromagnetic chuck (301).