Single-mode three-axis servo tube bender
By introducing positioning components and rollers into the pipe bending machine, the problems of deformation and support stability during the metal pipe feeding process are solved, enabling flexible positioning and stable bending of the metal pipe and improving the quality of the finished product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGCHUN FULONGDA AUTO PARTS CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-14
AI Technical Summary
Existing pipe bending machines are prone to deformation during the feeding of metal pipes, and the support stability is poor during bending, which affects the quality of finished products.
Positioning components are used to position and support the metal tube. The rollers rotate and tilt along the axis to change the force position of the metal tube. The rotational connection between the rollers and the support counteracts the rotation of the metal tube. Multiple rollers work together to position and support, achieving adaptive guidance.
Reduce the risk of metal tube deformation, improve support stability, reduce installation complexity, and ensure the flexibility and positioning accuracy of metal tubes during bending.
Smart Images

Figure CN224487267U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe bending machine technology, and in particular to a single-mode three-axis servo pipe bending machine. Background Technology
[0002] A pipe bending machine is a machining equipment used to bend metal pipes. The metal pipe is clamped by a bending die and a clamping die, and bending is achieved by rotating around the bending die. A pressure die provides support to prevent deformation of the non-bending parts of the metal pipe.
[0003] In existing technologies, the metal tube is mainly fed by gripping one end. Before the bending die and clamping die clamp the metal tube, the metal tube is only fixed on one side, which makes it easy to deform during the feeding process and affects the quality of the finished product. Especially in the process of connecting and bending, the bending die and clamping die will undergo multiple clamping and loosening processes, resulting in poor support stability of the metal tube during the bending process and increasing the risk of bending deformation of the metal tube. Utility Model Content
[0004] The purpose of this invention is to provide a single-mode three-axis servo pipe bending machine, which can position and support the metal pipe through a positioning component, while ensuring the flexibility of the metal pipe in advancing, retreating and rotating.
[0005] This utility model provides a single-mode three-axis servo pipe bending machine, comprising:
[0006] A bending die, a clamping die, and a pressing die, wherein the clamping die is close to and cooperates with the bending die to clamp the metal tube, and the pressing die is attached to the surface of the metal tube from the side away from the bending die;
[0007] A positioning assembly includes a fixing member, a support member, and rollers. The support member is rotatably mounted on the fixing member. The rollers are evenly distributed in a circle and rotate and tilt along the axial direction. Each roller is rotatably mounted on the support member.
[0008] The positioning component is located directly in front of the die. After the metal tube passes through the positioning component, it contacts the die, bending die and clamping die in sequence. The roller simultaneously abuts against the outer wall of the metal tube to position the metal tube.
[0009] Preferably, the roller includes a roller and a support shaft, the roller is rotatably mounted on the support shaft, and the support shaft is fixedly mounted on the support member.
[0010] Preferably, the support member is provided with an assembly groove, each assembly groove is equipped with a roller, and each assembly groove is fitted with a fixing cover, the fixing cover fixing the support shaft to the support member by snapping.
[0011] Preferably, a support frame is integrally formed on the mold, the support frame is located on the side of the mold away from the bending mold and the clamping mold, and the fastener is fixedly assembled on the support frame.
[0012] Preferably, the support frame is integrally formed with an installation groove, and the center positions of the front and rear side walls of the support frame are hollowed out. The fixing member is slidably installed into the installation groove, while the support member and the roller are exposed through the hollowed-out parts of the support frame.
[0013] Preferably, the bottom surface of the support frame is provided with a through hole connecting to the mounting groove, and the through hole is provided with a fastening screw, which locks the fixing member into the mounting groove.
[0014] Preferably, the single-mold three-axis servo pipe bending machine further includes a clamping drive assembly, which drives the clamping die to press against the bending die.
[0015] Preferably, the single-mold three-axis servo pipe bending machine further includes a bending drive assembly, wherein the bending die and the clamping drive assembly are both fixedly connected to the drive end of the bending drive assembly.
[0016] Preferably, the single-mold three-axis servo pipe bending machine further includes a die support assembly, wherein the die is slidably mounted on the die support assembly along the direction of movement of the metal pipe.
[0017] Preferably, the single-mold three-axis servo pipe bending machine further includes a feeding clamping assembly, which clamps one end of the metal pipe and drives the metal pipe to move toward the positioning assembly, bending die, clamping die and pressing die.
[0018] The technical solution of this utility model positions and supports the metal tube by adding a positioning component. The rollers rotate and tilt along the axial direction, so that the rollers continuously rotate along the outer wall of the metal tube as it moves forward, changing the force position of the metal tube, reducing the risk of metal tube deformation, and making the wear of each roller more synchronized. The rotational connection between the fixing component and the support component can counteract the rotation of the rollers along the metal tube, simplifying the installation and use process. The effect of positioning and supporting the metal tube by multiple rollers working together is better, and the arc-shaped outer surface of the rollers can generate a guiding effect during the entry of the metal tube, achieving an adaptive effect for the entry position of the metal tube. Attached Figure Description
[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is an isometric drawing of a single-mode three-axis servo pipe bending machine according to the present invention;
[0021] Figure 2 for Figure 1 Axonometric drawing of the positioning component in a single-mode three-axis servo pipe bending machine;
[0022] Figure 3 for Figure 1 Assembly drawing of the roller in a single-mode three-axis servo pipe bending machine;
[0023] Figure 4 for Figure 1 A top view of the single-mode three-axis servo pipe bending machine in operation;
[0024] Figure 5 for Figure 1 Assembly drawing of a single-mode three-axis servo pipe bending machine;
[0025] Figure 6 for Figure 1 Axonometric drawing of the support frame of a single-mode three-axis servo pipe bending machine;
[0026] Explanation of reference numerals in the attached drawings: 1. Positioning component; 11. Fixing component; 12. Support component; 121. Fixing cover; 122. Assembly slot; 13. Roller; 131. Roller; 132. Support shaft; 2. Bending die; 3. Clamping die; 4. Pressing die; 41. Support frame; 411. Mounting slot; 412. Through hole; 42. Fastening screw; 5. Clamping drive component; 6. Bending drive component; 7. Pressing die support component; 8. Feeding clamping component. Detailed Implementation
[0027] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0029] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] Combination Figures 1 to 6 As shown, the single-mold three-axis servo pipe bending machine provided by this utility model includes a positioning component 1, a bending die 2, a clamping die 3, and a pressing die 4.
[0031] Combination Figures 1 to 6 As shown, bending die 2 and clamping die 3 cooperate to clamp the metal tube and cause the metal tube to bend around bending die 2. Clamping die 3 is close to and cooperates with bending die 2 to clamp the metal tube. Clamping drive assembly 5 drives clamping die 3 to press against bending die 2 to realize the clamping action. Bending die 2 and clamping drive assembly 5 are both fixedly connected to the drive end of bending drive assembly 6. Bending drive assembly 6 drives bending die 2, clamping die 3 and clamping drive assembly 5 to rotate around the central axis of bending die 2. Pressing die 4 is slidably assembled on pressing die support assembly 7 along the movement direction of metal tube. Pressing die 4 adheres to the surface of metal tube from the side away from bending die 2. Pressing die 4 will press tightly on metal tube during bending and follow metal tube forward until bending is completed and automatically reset.
[0032] The positioning assembly 1 includes a fixing member 11, a support member 12 and rollers 13. The support member 12 is rotatably mounted on the fixing member 11. The rollers 13 are evenly distributed in a circle and rotate and tilt along the axial direction. Each roller 13 is rotatably mounted on the support member 12.
[0033] Positioning component 1 is located directly in front of the pressing die 4. The feeding clamping component 8 clamps one end of the metal tube and drives the metal tube to move. After the metal tube passes through the positioning component 1, it contacts the pressing die 4, the bending die 2 and the clamping die 3 in sequence. The roller 13 simultaneously abuts against the outer wall of the metal tube to position the metal tube.
[0034] Working process: During the feeding of the metal tube, the roller 13 rotates around the metal tube while rotating due to the tilt angle, thereby driving the support 12 to rotate. The rotation between the fixed part 11 and the support 12 cancels each other out, causing the fixed part 11 to tend to be stationary.
[0035] When the metal tube is rotated to adjust the bending direction of the metal tube, the roller 13 generally rotates, and the rotation between the fixing member 11 and the support member 12 directly counteracts the rotation of the metal tube.
[0036] After the first section of the metal tube is bent, it will change the bending direction by rotating as it is fed to the next bending position. At this time, the actual movement direction of the surface of the metal tube is close to the placement direction of the roller 13. The self-rotation of the support member 12 and the rotation of the support member 12 counteract the rotation of the metal tube.
[0037] In this embodiment, the positioning component 1 is added to position and support the metal tube. The roller 13 rotates and tilts along the axial direction, so that the roller 13 will continuously rotate along the outer wall of the metal tube during the advance of the metal tube, changing the force position of the metal tube, reducing the risk of metal tube deformation, and making the wear of each roller 13 tend to be synchronized. The rotational connection between the fixing component 11 and the supporting component 12 can counteract the rotation of the roller 13 along the metal tube, simplifying the installation and use process. The effect of multiple rollers 13 working together to position and support the metal tube is better, and the arc-shaped outer surface of the roller 13 can generate a guiding effect during the entry of the metal tube, realizing an adaptive effect for the entry position of the metal tube. The positioning component 1 can flexibly adapt to various movement modes of the metal tube during the bending process, ensuring a good fixing effect while reducing the obstruction effect of fixing on the feeding process.
[0038] In some embodiments, combined with Figure 3 As shown, the roller 13 includes a roller 131 and a support shaft 132. The roller 131 is rotatably mounted on the support shaft 132 via bearings, while the support shaft 132 is fixedly mounted on the support member 12. The support member 12 is provided with mounting grooves 122. The middle part of the mounting groove 122 is a clearance groove to accommodate the roller 131, and the two ends of the mounting groove 122 are recessed grooves to accommodate the two ends of the support shaft 132. Each mounting groove is equipped with a roller 13, and each mounting groove 122 is equipped with a fixing cover 121. The fixing cover 121 has an opening to expose the roller 131 for operation. The fixing cover 121 fixes the two ends of the support shaft 132 to the support member 12 by snapping.
[0039] In some embodiments, combined with Figure 1As shown, a support frame 41 is integrally formed on the mold 4 to support the positioning assembly 1, and the support frame 41 is located on the side of the mold 4 away from the bending mold 2 and the clamping mold 3, wherein the fixing member 11 is fixedly assembled on the support frame 41. Specifically, an installation groove 411 can be integrally formed on the support frame 41, and the center positions of the front and rear side walls of the support frame 41 are hollowed out. The fixing member 11 is slidably installed into the installation groove 411, while the support member 12 and the roller 13 are exposed through the hollowed-out part on the support frame 41. In addition, a through hole 412 can be provided on the bottom surface of the support frame 41 to connect to the installation groove 411. A fastening screw 42 is provided in the through hole 412. The fastening screw 42 passes through the through hole 412 from below and connects to the fixing member 11. The fixing member 11 can be locked in the installation groove 411 by the fastening screw 42.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A single-mode three-axis servo pipe bending machine, characterized in that, include: The bending die (2), clamping die (3) and pressing die (4) are provided, wherein the clamping die (3) is close to and cooperates with the bending die (2) to clamp the metal tube, and the pressing die (4) is attached to the surface of the metal tube from the side away from the bending die (2); The positioning component (1) includes a fixing member (11), a support member (12) and rollers (13). The support member (12) is rotatably mounted on the fixing member (11). The rollers (13) are evenly distributed in a circle and rotate and tilt along the axial direction. Each roller (13) is rotatably mounted on the support member (12). The positioning component (1) is located directly in front of the pressing mold (4). After the metal tube passes through the positioning component (1), it contacts the pressing mold (4), the bending mold (2) and the clamping mold (3) in sequence. The roller (13) simultaneously abuts against the outer wall of the metal tube to position the metal tube.
2. The single-mode three-axis servo pipe bending machine according to claim 1, characterized in that, The roller (13) includes a roller (131) and a support shaft (132). The roller (131) is rotatably mounted on the support shaft (132), and the support shaft (132) is fixedly mounted on the support member (12).
3. The single-mode three-axis servo pipe bending machine according to claim 2, characterized in that, The support member (12) is provided with an assembly groove (122), and each assembly groove is equipped with a roller (13). Each assembly groove (122) is equipped with a fixing cover (121). The fixing cover (121) fixes the support shaft (132) on the support member (12) by snapping.
4. The single-mode three-axis servo pipe bending machine according to claim 1, characterized in that, The mold (4) is integrally formed with a support frame (41), which is located on the side of the mold (4) away from the bending mold (2) and the clamping mold (3). The fastener (11) is fixedly assembled on the support frame (41).
5. The single-mode three-axis servo pipe bending machine according to claim 4, characterized in that, The support frame (41) is integrally formed with an installation groove (411). The center of the front and rear side walls of the support frame (41) is hollowed out. The fixing member (11) is slidably installed into the installation groove (411). At the same time, the support member (12) and the roller (13) are exposed through the hollowed-out part of the support frame (41).
6. The single-mode three-axis servo pipe bending machine according to claim 5, characterized in that, The support frame (41) has a through hole (412) on its bottom surface that connects to the mounting groove (411). The through hole (412) is provided with a fastening screw (42), which locks the fixing member (11) into the mounting groove (411).
7. The single-mode three-axis servo pipe bending machine according to claim 1, characterized in that, It also includes a clamping drive assembly (5), which drives the clamping die (3) to press against the bending die (2).
8. The single-mode three-axis servo pipe bending machine according to claim 7, characterized in that, It also includes a bending drive assembly (6), wherein the bending die (2) and the clamping drive assembly (5) are both fixedly connected to the drive end of the bending drive assembly (6).
9. The single-mode three-axis servo pipe bending machine according to claim 1, characterized in that, It also includes a mold support assembly (7), wherein the mold (4) is slidably mounted on the mold support assembly (7) along the direction of movement of the metal tube.
10. The single-mode three-axis servo pipe bending machine according to claim 1, characterized in that, It also includes a feeding clamping assembly (8), which clamps one end of the metal tube and drives the metal tube to move toward the positioning assembly (1), bending die (2), clamping die (3) and pressing die (4).