An adjustable positioning fixture for a pipe bending machine
By combining guide rails, fitting grooves, sliders, and bolts, the problem of insufficient positioning accuracy in traditional pipe bending machines is solved, enabling rapid and accurate positioning of steel pipes and improving the quality and efficiency of pipe bending.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING CHUANGMI METAL PROD CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional pipe bending machine positioning fixtures rely on manual measurement, resulting in insufficient positioning accuracy and deviations in bending angle, arc, or position, which affects processing quality and efficiency.
It adopts a combination structure of guide rail, fitting groove, slider and bolt. Through the sliding cooperation of the slider on the guide rail, it can achieve fast and accurate positioning of steel pipe and adapt to the needs of steel pipe of different specifications.
It improves positioning efficiency and flexibility, ensures the accuracy and quality of pipe bending, and reduces the production of defective products.
Smart Images

Figure CN224273025U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel pipe processing technology, and in particular to an adjustable positioning fixture for a pipe bending machine. Background Technology
[0002] Pipe bends are widely used in many fields, such as oil, gas, and liquid pipelines, engineering bridge construction, and pipe fitting processing in industries such as automobile manufacturing, fitness equipment, medical devices, furniture, and aerospace. Different industries have different requirements for the shape, size, and precision of pipe bends, requiring precise positioning fixtures to ensure the quality and efficiency of pipe bending processing.
[0003] Traditional pipe bending machine positioning fixtures rely on manual measurement and experience-based judgment, which can easily lead to insufficient positioning accuracy due to human error, causing deviations in the bending angle, arc, or position to exceed tolerance ranges, resulting in a large number of defective products. Utility Model Content
[0004] The purpose of this utility model is to provide an adjustable positioning fixture for a pipe bending machine. A slider is slidably connected to the inner surface of the fitting groove. The sliding cooperation between the slider and the fitting groove allows the operator to conveniently adjust the position of the slider on the guide rail according to the actual pipe bending requirements. When it is necessary to bend steel pipes of different specifications, the outer surface of the slider can be made to closely contact the outer surface of the steel pipe by sliding the slider, so as to achieve rapid and accurate positioning of the steel pipe in the horizontal direction, effectively improving the positioning efficiency and flexibility.
[0005] To achieve the above objectives, an adjustable positioning fixture for a pipe bending machine is provided, comprising: a working platform and auxiliary components. Three guide rails are fixedly connected to the upper surface of the working platform. Each of the three guide rails has a fitting groove on its left and right sides. A slider is slidably connected to the inner surface of each fitting groove. A limit bolt and a fixing bolt are threadedly connected to the upper surface of the slider. This structure, through the cooperation of the guide rails, fitting grooves, sliders, and bolts, achieves flexible positioning and stable fixing of the steel pipe, improving the pipe bending accuracy.
[0006] According to the adjustable positioning fixture for a pipe bending machine, both the limiting bolts and the fixing bolts extend to the upper surface of the guide rail, and the dimensions of the guide rail are adapted to the dimensions of the work platform. The extended bolts facilitate operation, and the matching dimensions of the guide rail and platform enhance structural stability, ensuring reliable operation during the pipe bending process.
[0007] According to the adjustable positioning fixture for a pipe bending machine, the guide rails are symmetrically arranged on the upper surface of the work platform, and the number of fitting slots corresponds to the number of guide rails. The symmetrical arrangement of the guide rails and the corresponding fitting slots ensures balanced force distribution on the fixture, improving its adaptability and positioning capability for steel pipes of different specifications.
[0008] According to the adjustable positioning fixture for a pipe bending machine, the auxiliary component is located on the upper surface of the work platform. The auxiliary component includes a bending rotating block, a rotating column, an abutment roller, a first mating groove, a second mating groove, and a steel pipe. The rotating column is rotatably connected to the upper surface of the work platform. The abutment roller is rotatably connected to the outer surface of the rotating column. The outer surface of the abutment roller has a first mating groove, and the inner surface of the first mating groove abuts against the steel pipe. The bending rotating block is fixedly connected to the outer surface of the rotating column, and the inner surface of the bending rotating block has a second mating groove. The components of the auxiliary component work together to provide a force application and positioning structure for bending the steel pipe, ensuring efficient and accurate completion of the bending process.
[0009] According to the adjustable positioning fixture for a pipe bending machine, the outer surface of the steel pipe abuts against the slider, the first and second mating grooves are arranged in parallel, and the abutting roller is located inside the bending rotating block. The positional relationship of the slider, mating grooves, and components precisely restricts the movement of the steel pipe, ensuring uniform force on the bent pipe and improving the bending quality and yield.
[0010] The above-mentioned solution has the following beneficial effects:
[0011] This utility model is equipped with a guide rail, a fitting groove, a slider, a limiting bolt, and a fixing bolt. The slider is slidably connected to the inner surface of the fitting groove. The sliding cooperation between the slider and the fitting groove allows the operator to easily adjust the position of the slider on the guide rail according to the actual pipe bending requirements. When it is necessary to bend steel pipes of different specifications, the outer surface of the slider can be made to closely contact the outer surface of the steel pipe by sliding the slider, so as to achieve fast and accurate positioning of the steel pipe in the horizontal direction, effectively improving positioning efficiency and flexibility.
[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0014] Figure 1 This is a perspective view of an adjustable positioning fixture for a pipe bending machine according to the present invention.
[0015] Figure 2 This is a front view of an adjustable positioning fixture for a pipe bending machine according to the present invention.
[0016] Figure 3 This is a cross-sectional perspective view of an adjustable positioning fixture for a pipe bending machine according to the present invention.
[0017] Figure 4 For utility model Figure 3 Enlarged view of the structure at point A in the middle.
[0018] Legend:
[0019] 1. Working platform; 2. Bending and rotating block; 3. Rotating column; 4. Abutting roller; 5. First mating groove; 6. Second mating groove; 7. Steel pipe; 8. Guide rail; 9. Fitting groove; 10. Slider; 11. Limit bolt; 12. Fixing bolt. Detailed Implementation
[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0021] Reference Figure 1-4 This utility model discloses an adjustable positioning fixture for a pipe bending machine, comprising: a working platform 1 and auxiliary components. Three guide rails 8 are fixedly connected to the upper surface of the working platform 1. The three guide rails 8 provide a mounting base for subsequent components such as the slider 10, enabling them to be positioned and slid on the working platform 1. Their fixed connection ensures the stability of the entire positioning fixture structure. Fitting grooves 9 are provided on the left and right sides of the side walls of the three guide rails 8, providing sliding tracks for the slider 10, allowing the slider 10 to move stably on the guide rails 8, thereby achieving the desired adjustment for different... For positioning and adjustment of the steel pipe 7, a slider 10 is slidably connected to the inner surface of the fitting groove 9. The slider 10 can be flexibly adjusted on the guide rail 8 through sliding cooperation with the fitting groove 9 to adapt to the positioning requirements of steel pipes 7 of different specifications. It can also be positioned by contacting the outer surface of the steel pipe 7. The upper surface of the slider 10 is threadedly connected with a limit bolt 11 and a fixing bolt 12. The limit bolt 11 and the fixing bolt 12 are used to fix the position of the slider 10 on the guide rail 8 to prevent the slider 10 from shifting during the pipe bending process and to ensure the accuracy and stability of the positioning of the steel pipe 7.
[0022] Both the limiting bolt 11 and the fixing bolt 12 extend to the upper surface of the guide rail 8, facilitating operation by the operator on the upper surface of the guide rail 8. This allows for convenient adjustment and fixation of the slider 10 position. The dimensions of the guide rail 8 are compatible with the dimensions of the work platform 1, ensuring that the guide rail 8 can be stably installed on the work platform 1, forming a complete and stable load-bearing structure that provides reliable support for subsequent pipe bending operations. The guide rails 8 are symmetrically arranged on the upper surface of the work platform 1. This symmetrical layout helps to evenly distribute the load, improve the overall balance and stability of the tooling, and make the steel pipe 7 more evenly stressed during the bending process. The number of fitting slots 9 corresponds to the number of guide rails 8, ensuring that each guide rail 8 can engage with the slider. 10. A well-coordinated system enables multi-directional and multi-angle positioning adjustments, enhancing the tooling's adaptability to steel pipes 7 of different specifications. The auxiliary components are located on the upper surface of the work platform 1. These components include a bending rotating block 2, a rotating column 3, an abutment roller 4, a first mating groove 5, a second mating groove 6, and the steel pipe 7. These auxiliary components are the core part for realizing the bending operation of the steel pipe 7. They cooperate with the work platform 1 and guide rails 8 to complete the bending operation. The rotating column 3 is rotatably connected to the upper surface of the work platform 1. The rotating column 3 can rotate on the work platform 1, providing rotational support for the bending rotating block 2 and the abutment roller 4, allowing them to rotate around the work platform 1 to achieve the bending operation of the steel pipe 7. The outer surface of the rotating column 3 is rotatably connected to the abutment roller 4. 4 can rotate flexibly on the rotating column 3, contacting and applying pressure to the steel pipe 7 during the bending process. Its own rotation reduces friction with the steel pipe 7, ensuring smooth bending. The outer surface of the contact roller 4 has a first mating groove 5, which abuts against the outer surface of the steel pipe 7, providing positioning and support for the steel pipe 7, keeping it stable during bending, and guiding it to bend along a predetermined trajectory. The inner surface of the first mating groove 5 abuts against the steel pipe 7, ensuring the steel pipe 7 remains in the correct position during bending, preventing deviation or shaking, and guaranteeing bending accuracy and quality. A bending rotating block 2 is fixedly connected to the outer surface of the rotating column 3. The bending rotating block 2, through its fixed connection to the rotating column 3, can move with the rotating column... The first and second sliding blocks 5 and 6 rotate together, providing force for bending the steel pipe 7 and enabling the bending operation. The inner surface of the bending rotating block 2 has a second mating groove 6, which mates with the outer surface of the steel pipe 7. During bending, this groove applies bending force to the steel pipe 7 while limiting its deformation direction, ensuring that the steel pipe 7 bends according to design requirements. The outer surface of the steel pipe 7 abuts against the slider 10, which positions and limits the steel pipe 7, preventing axial or radial movement during bending and ensuring the accuracy and stability of the bending operation. The first and second mating grooves 5 and 6 are arranged parallel to ensure uniform force on the steel pipe 7 during bending, allowing it to bend at a predetermined angle and shape, improving bending quality and efficiency.The abutment roller 4 is located inside the bending rotating block 2. This arrangement allows the abutment roller 4 and the bending rotating block 2 to work together, applying pressure and bending force to the steel pipe 7 during the bending process, thus achieving efficient bending of the steel pipe 7.
[0023] Working principle: First, the steel pipe 7 to be bent is placed on the working platform 1, so that the steel pipe 7 initially contacts the first mating groove 5 of the contact roller 4 and the second mating groove 6 of the bending rotating block 2. Utilizing the parallel arrangement of the two, the steel pipe 7 is ensured to be in the correct initial position. According to the specifications of the steel pipe 7 and the bending requirements, the slider 10 slides in the fitting groove 9 on the side wall of the guide rail 8. By adjusting the position of the slider 10 on the guide rail 8, the outer surface of the slider 10 is made to closely contact the outer surface of the steel pipe 7, achieving precise horizontal positioning of the steel pipe 7. Since the guide rails 8 are symmetrically arranged on the working platform 1, and the number of fitting grooves 9 corresponds to them, the steel pipe 7 can be stably positioned from multiple directions. Limiting bolts 11 and fixing screws are used. Bolt 12 is used to fix the adjusted slider 10 onto the guide rail 8. By tightening the limit bolt 11 and fixing bolt 12 on the upper surface of the guide rail 8, displacement of the slider 10 during subsequent pipe bending is prevented, ensuring the stability of the steel pipe 7's positioning. The pipe bending machine is started, and the rotating column 3 drives the bending rotating block 2 and the contact roller 4 to start rotating. The first mating groove 5 on the outer surface of the contact roller 4 contacts the steel pipe 7, applying pressure to the steel pipe 7 during rotation. At the same time, the second mating groove 6 on the inner surface of the bending rotating block 2 applies bending force to the steel pipe 7. The contact roller 4 can rotate flexibly on the rotating column 3, reducing friction between it and the steel pipe 7. The two work together to bend the steel pipe 7 according to the predetermined angle and shape, completing the pipe bending operation.
[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An adjustable positioning fixture for a pipe bending machine, comprising: The working platform (1) and auxiliary components are characterized in that: three guide rails (8) are fixedly connected to the upper surface of the working platform (1), and fitting grooves (9) are provided on the left and right sides of the side walls of the three guide rails (8). A slider (10) is slidably connected to the inner surface of the fitting groove (9), and a limit bolt (11) and a fixing bolt (12) are threadedly connected to the upper surface of the slider (10).
2. The adjustable positioning fixture for a pipe bending machine according to claim 1, characterized in that: Both the limiting bolt (11) and the fixing bolt (12) extend to the upper surface of the guide rail (8), and the size of the guide rail (8) is adapted to the size of the work platform (1).
3. The adjustable positioning fixture for a pipe bending machine according to claim 1, characterized in that: The guide rails (8) are symmetrically arranged on the upper surface of the work platform (1), and the number of the fitting grooves (9) corresponds to the number of guide rails (8).
4. The adjustable positioning fixture for a pipe bending machine according to claim 1, characterized in that: The auxiliary components are located on the upper surface of the working platform (1). The auxiliary components include a bending rotating block (2), a rotating column (3), an abutting roller (4), a first mating groove (5), a second mating groove (6), and a steel pipe (7). The rotating column (3) is rotatably connected to the upper surface of the working platform (1). The abutting roller (4) is rotatably connected to the outer surface of the rotating column (3). The first mating groove (5) is opened on the outer surface of the abutting roller (4). The steel pipe (7) is abutted on the inner surface of the first mating groove (5). The bending rotating block (2) is fixedly connected to the outer surface of the rotating column (3). The second mating groove (6) is opened on the inner surface of the bending rotating block (2).
5. The adjustable positioning fixture for a pipe bending machine according to claim 4, characterized in that: The outer surface of the steel pipe (7) abuts against the slider (10), the first mating groove (5) and the second mating groove (6) are arranged in parallel, and the abutting roller (4) is located inside the bending rotating block (2).