Quick detachable fixing assembly for bending and coiling stainless steel pipes
By designing quick-release components on the pipe bending machine, the problem of low mold replacement efficiency is solved, enabling rapid mold disassembly and installation, and improving the efficiency of processing different pipe materials and clamping stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN JINLI HUIHUANG METAL PRODUCTS CO LTD
- Filing Date
- 2025-03-21
- Publication Date
- 2026-06-09
AI Technical Summary
The existing pipe bending machine molds cannot be changed quickly, resulting in low efficiency when processing different pipe materials.
A quick-release assembly comprising a pipe bending machine rotating end, a moving mold, and a fixed mold is designed. By utilizing the cooperation of guide strips, guide grooves, positioning blocks, and positioning grooves, the moving mold and fixed mold can be quickly disassembled and installed by driving a bidirectional lead screw through a knob.
It enables quick mold changes, improves the efficiency of processing pipes of different diameters, and ensures clamping stability and ease of operation.
Smart Images

Figure CN224333254U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pipe bending machine fasteners, specifically a quick-detachable fastener for bending stainless steel pipes. Background Technology
[0002] A pipe bending machine is a mechanical device used to process metal pipes. Its main function is to bend metal pipes to obtain the desired shape and angle.
[0003] During the pipe bending process, the rotating end of the pipe bending machine is used to clamp and fix the pipe end. Then, the rotation of the end is used to feed the pipe at the same time, so as to achieve the purpose of bending the pipe. Throughout the process, the stable clamping of the pipe end is an important guarantee for ensuring the quality of the pipe bending.
[0004] In the clamping of pipe ends, the purpose of fixing is often achieved by the extrusion of a moving mold and a fixed mold. Therefore, the mold is provided with a semi-circular groove, and the diameter of the semi-circular groove is adapted to the diameter of the pipe to be processed, so as to ensure the stability of clamping and prevent slippage when bending the pipe. However, the arc size of the mold cannot be changed. When processing different pipes, the mold often needs to be replaced. Therefore, designing a fixing mold that can be quickly assembled and disassembled is an important guarantee for improving work efficiency. Summary of the Invention
[0005] The purpose of this invention is to provide a quick-disassembly fixing component for bending and rolling stainless steel pipes, in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a pipe bending machine rotating end, a moving mold, and a fixed mold. A disc is fixed to the upper end of the rotating end of the pipe bending machine. The fixed mold is installed on the outer side of the disc. A telescopic cylinder is fixed to the upper end of the rotating end of the pipe bending machine away from the disc. A telescopic block is fixed to the output end of the telescopic cylinder. The fixed mold is installed on the side of the telescopic block near the fixed mold. Quick-release components are provided at the connection between the moving mold and the telescopic block, and at the connection between the moving mold and the outer plane of the disc. The quick-release components include a guide strip, a guide groove, a positioning block, and a positioning groove. The guide strip is fixed on the plane sidewall of the disc and the sidewall of the telescopic block. The guide groove is located on the side of the fixed mold and the moving mold away from each other. The guide strip is inserted into the guide groove. The positioning groove is located in the middle of the fixed mold and the moving mold. The positioning groove is located on the plane sidewall of the disc and the telescopic block, and its position is aligned with the positioning groove. The positioning block is inserted into the positioning groove.
[0007] Preferably, both the disc and the telescopic block are provided with a drive groove, the drive groove is aligned with the positioning block, and a positioning rod is provided in the drive groove and at a position corresponding to the positioning block, the end of the positioning rod being slidably connected to the positioning block.
[0008] Preferably, a bidirectional lead screw is rotatably connected in the drive groove, a pair of threaded sleeves are threadedly connected to the bidirectional lead screw, a connecting rod is installed between the threaded sleeves and the telescopic block, and a knob is fixedly connected to the upper end of the bidirectional lead screw extending out of the disc.
[0009] Preferably, the two ends of the connecting rod are hinged to the threaded sleeve and the positioning block, respectively.
[0010] Preferably, the T-shaped structure in which the guide bar and guide groove are adapted is such that the arc surface of the fixed mold is aligned with the outer arc surface of the disk.
[0011] Preferably, a circular groove is formed on the side of the fixed mold and the moving mold that are close to each other.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the fixed mold on the outside of the disc and the moving mold at the end of the telescopic cylinder are used to squeeze and fix the end of the stainless steel pipe, so that it follows the rotation of the end of the pipe bending machine to achieve the purpose of bending the pipe. Furthermore, the telescopic movement of the positioning rod can realize the quick replacement of the moving mold and the fixed mold, thereby greatly improving the switching efficiency when bending pipes of different diameters. Attached Figure Description
[0013] Figure 1 This is a partial cross-sectional view of the front of a quick-detachable fixing component for bending and rolling stainless steel pipes according to this utility model.
[0014] Figure 2 This is a top view of the quick-detachable fixing component for bending and rolling stainless steel pipes according to this utility model.
[0015] Figure 3 This is a schematic diagram of the combined planar structure of a quick-detachable fixing component disc and a fixed mold for bending and rolling stainless steel pipes according to this utility model.
[0016] Figure 4 This utility model relates to a quick-detachable fixing component for bending and rolling stainless steel pipes. Figure 1 Enlarged structural diagram at point A in the middle.
[0017] In the diagram: 1. Rotating end of the pipe bending machine; 2. Disc; 21. Guide bar; 22. Positioning block; 23. Drive groove; 24. Positioning rod; 25. Two-way lead screw; 26. Threaded sleeve; 27. Connecting rod; 28. Knob; 3. Fixed mold; 4. Telescopic block; 41. Telescopic cylinder; 5. Moving mold; 51. Guide groove; 52. Positioning groove; 6. Circular 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 1-4 This utility model provides a technical solution: including a pipe bending machine rotating end 1, a moving mold 5 and a fixed mold 3. A disc 2 is fixed at the upper end of the pipe bending machine rotating end 1. The fixed mold 3 is installed on the outside of the disc 2. A telescopic cylinder 41 is fixed at the upper end of the pipe bending machine rotating end 1 away from the disc 2. A telescopic block 4 is fixed at the output end of the telescopic cylinder 41. The fixed mold 3 is installed on the side of the telescopic block 4 close to the fixed mold 3. Quick-release components are provided at the connection between the moving mold 5 and the telescopic block 4 and at the connection between the moving mold 5 and the outer plane of the disc 2. A circular groove 6 is opened on the side of the fixed mold 3 and the moving mold 5 that is close to each other.
[0020] In this embodiment, during pipe bending, the end of the stainless steel pipe is inserted between the moving mold 5 and the fixed mold 3. Driven by the telescopic cylinder 41, the telescopic block 4 and the moving mold 5 slide, clamping and fixing the pipe between the moving mold 5 and the fixed mold 3, keeping its end stable. Then, it follows the rotating end 1 of the pipe bending machine to rotate around the center of the disc 2 to achieve the purpose of bending the pipe. At this time, the size of the circular groove 6 is the same as the diameter of the stainless steel pipe being processed, which can ensure the stability of the clamping and prevent the end of the pipe from slipping off during the rotating pipe bending process.
[0021] The quick-release assembly includes a guide strip 21, a guide groove 51, a positioning block 22, and a positioning groove 52. The guide strip 21 is fixed on the flat side wall of the disc 2 and the side wall of the telescopic block 4. The guide groove 51 is opened on the side of the fixed mold 3 and the moving mold 5 that are far apart. The guide strip 21 is inserted into the guide groove 51. The positioning groove 52 is opened in the middle position between the fixed mold 3 and the moving mold 5. The positioning groove 52 is opened on the flat side wall of the disc 2 and the telescopic block 4, and its position is aligned with the positioning groove 52. The positioning block 22 is inserted into the positioning groove 52. The guide strip 21 and the guide groove 51 are matched with each other in a T-shaped structure. The arc surface of the fixed mold 3 is aligned with the outer arc surface of the disc 2.
[0022] In this embodiment, when installing the moving mold 5 and the fixed mold 3, the open end guide groove 51 on the moving mold 5 and the fixed mold 3 is first aligned with the guide bar 21 and inserted until it is inserted to the deepest point. At this time, the positioning block 22 and the positioning groove 52 can be aligned. Since the guide bar 21 and the guide groove 51 are compatible T-shaped structures, it can be ensured that the moving mold 5 and the positioning can only slide in a plane. The side that is far away from each other is always against the plane of the disc 2 and the telescopic block 4. Then, by extending the positioning block 22, its end is inserted into the positioning groove 52, which can limit the plane sliding of the fixed mold 3 and the moving mold 5, thereby achieving the purpose of fixing.
[0023] Both the disc 2 and the telescopic block 4 have drive grooves 23, which are aligned with the positioning block 22. A positioning rod 24 is provided in the drive groove 23 and at a position corresponding to the positioning block 22. The end of the positioning rod 24 is slidably connected to the positioning block 22. A bidirectional lead screw 25 is rotatably connected in the drive groove 23. A pair of threaded sleeves 26 are threadedly connected to the bidirectional lead screw 25. A connecting rod 27 is installed between the threaded sleeves 26 and the telescopic block 4. The upper end of the bidirectional lead screw 25 extends out of the disc 2 and is fixedly connected to a knob 28. The two ends of the connecting rod 27 are respectively hinged to the threaded sleeves 26 and the positioning block 22.
[0024] In this embodiment, rotating the knob 28 can drive the bidirectional lead screw 25 to rotate, causing the threaded sleeve 26 to move synchronously in opposite directions on the bidirectional lead screw 25. When moving towards one side, the positioning block 22 can be pushed outward by the transmission of the connecting rod 27, eventually extending out of the drive groove 23 and inserting into the positioning groove 52. Conversely, the positioning block 22 can be pulled back into the drive groove 23. During the entire extension and retraction process, the positioning rod 24 limits the movement of the positioning block 22 to ensure that it can only extend and retract horizontally.
[0025] Working principle: The fixed mold 3 and the moving mold 5 can be used to fix the stainless steel pipe that needs to be bent. By rotating the knob 28, the fixed mold 3 and the moving mold 5 can be easily released immediately. The fixed mold 3 and the moving mold 5 with different sized circular grooves 6 can be installed. The whole operation is simple and convenient. When processing pipes of different diameters and needing to change the clamping mold, the replacement efficiency is higher.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick detachable fixing assembly for bending and coiling of stainless steel pipes, comprising a bending machine rotating end (1), a moving die (5) and a fixed die (3), characterized in that: A disc (2) is fixed at the upper end of the rotating end (1) of the pipe bending machine. The fixed mold (3) is installed on the outside of the disc (2). A telescopic cylinder (41) is fixed at the upper end of the rotating end (1) of the pipe bending machine away from the disc (2). A telescopic block (4) is fixed at the output end of the telescopic cylinder (41). The fixed mold (3) is installed on the side of the telescopic block (4) close to the fixed mold (3). Quick-release components are provided at the connection between the moving mold (5) and the telescopic block (4) and at the connection between the moving mold (5) and the outer plane of the disc (2). The quick-release assembly includes a guide strip (21), a guide groove (51), a positioning block (22), and a positioning groove (52). The guide strip (21) is fixed on the flat side wall of the disc (2) and the side wall of the telescopic block (4). The guide groove (51) is opened on the side of the fixed mold (3) and the moving mold (5) that are far apart. The guide strip (21) is inserted into the guide groove (51). The positioning groove (52) is opened in the middle position between the fixed mold (3) and the moving mold (5). The positioning groove (52) is opened on the flat side wall of the disc (2) and the telescopic block (4), and its position is aligned with the positioning groove (52). The positioning block (22) is inserted into the positioning groove (52).
2. The quick detachable fixing assembly for bending and coiling of stainless steel pipes according to claim 1, characterized in that: Both the disc (2) and the telescopic block (4) are provided with drive grooves (23), the drive grooves (23) are aligned with the positioning block (22), and a positioning rod (24) is provided in the drive grooves (23) and at a position corresponding to the positioning block (22). The end of the positioning rod (24) is slidably connected in the positioning block (22).
3. The quick detachable fixing assembly for bending and coiling of stainless steel pipes according to claim 2, characterized in that: A bidirectional lead screw (25) is rotatably connected inside the drive groove (23). A pair of threaded sleeves (26) are threadedly connected to the bidirectional lead screw (25). A connecting rod (27) is installed between the threaded sleeve (26) and the telescopic block (4). The upper end of the bidirectional lead screw (25) extends out of the disc (2) and is fixedly connected to a knob (28).
4. The quick detachable fixing assembly for bending and coiling of stainless steel pipes according to claim 3, characterized in that: The two ends of the connecting rod (27) are respectively hinged to the threaded sleeve (26) and the positioning block (22).
5. The quick detachable fixing assembly for bending and coiling of stainless steel pipes according to claim 1, characterized in that: The guide bar (21) and guide groove (51) are matched in a T-shaped structure, and the arc surface of the fixed mold (3) is aligned with the outer arc surface of the disk (2).
6. The quick detachable fixing assembly for bending and coiling of stainless steel pipes according to claim 1, characterized in that: A circular groove (6) is provided on the side of the fixed mold (3) and the moving mold (5) that are close to each other.