A whole bending forming tool for thin-walled copper pipe
By designing an adjustable integral bending forming fixture, the problem of thin-walled copper tubes being unable to be bent as a whole was solved, achieving efficient copper tube bending forming, avoiding welding leakage, reducing costs and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA FIRST MASCH GRP CORP CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-06-16
Smart Images
Figure CN224359193U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical processing technology, and in particular relates to a tooling for integral bending and forming of thin-walled copper tubes. Background Technology
[0002] There is a type of thin-walled copper tube with a spiral shape in the middle and multiple bends at both ends. The bending radius of the spiral part is different from that of the other bends. Due to factors such as the length of the unfolded material, interference with the equipment during bending, different bending radii, and changes in bending rotation, it is impossible to bend and form the entire tube as a whole using existing CNC and electric tube bending machines and their matching bending molds. Therefore, a segmented bending and then welding manufacturing solution is adopted.
[0003] This pipe fitting is a core component of the power auxiliary system of tracked vehicles. The welding method has the potential for weld leakage. The leakage causes oil and water mixing, which leads to the persistent problem of the engine failing to start normally. It also reduces the service life and reliability of the thin-walled pressure-bearing structural components of the lubrication system and cannot guarantee the normal starting of the engine under low temperature conditions. The welding method adds assembly, welding, alkaline washing, and pressure testing processes, resulting in a long process flow, increased manufacturing costs, and reduced production efficiency. Utility Model Content
[0004] The technical problem to be solved by this invention is: how to bend long, thin-walled copper tubes in multiple segments.
[0005] To solve the above-mentioned technical problems, the specific technical solution of this utility model is as follows:
[0006] A tooling for integral bending and forming of thin-walled copper tubes includes a shaft 1, a bending die 2, a guide plate 4, a clamping body 7, a pressure block 8, a support core rod 10, and a platform 11. The clamping body 7 is fixed on the upper surface of the platform 11. The bottom of the shaft 1 is vertically installed above the clamping body 7, and the two are rotatably connected. The bending die 2 is fixed in the middle of the shaft 1 and can rotate with the shaft 1.
[0007] The clamp body 7 has symmetrical sliding grooves on the left and right sides. The guide plate 4 is bolted into the corresponding sliding groove and the position of the guide plate 4 can be adjusted in the sliding groove.
[0008] The pressure block 8 is fixed on one side of the bending mold 2. One end of the copper tube to be processed is sleeved on the support core rod 10, and the support core rod 10 is horizontally fixed above the platform 11. The other end of the copper tube to be processed is fastened between the pressure block 8 and the bending mold 2.
[0009] The inner side of the guide plate 4 is provided with a support part for cooperating with the middle part of the support core rod 10.
[0010] Furthermore, the clamp is fixedly connected to the platform using bolts and nuts.
[0011] Furthermore, the bending die can rotate left and right along the shaft.
[0012] Furthermore, the position of the support core rod can be adjusted left and right, as well as front and back.
[0013] This utility model has the following advantages:
[0014] 1. Capable of bending and forming 12-meter-long unfolded tubes; quick change of bending dies with different bending radii; has left-hand and right-hand bending functions; solves problems such as interference with equipment during bending, unfolded material length, and single bending direction, and realizes overall tube bending.
[0015] 2. Eliminates assembly, welding, alkaline washing, and pressure testing processes, reducing costs and improving production efficiency.
[0016] 3. Overall bending effectively improves product quality and eliminates quality problems caused by weld leakage. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the tooling structure for integral bending and forming of the thin-walled copper tube according to this utility model.
[0018] Figure 2 for Figure 1 Top view. Detailed Implementation
[0019] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model is provided below with reference to the accompanying drawings.
[0020] like Figure 1 As shown, the tooling for integral bending of thin-walled copper tubes of this utility model consists of a shaft 1, a bending mold 2, a key 3, a guide plate 4, a T-bolt 5, a nut 6, a clamping body 7, a pressure block 8, a bolt 9, a support core rod 10, a platform 11, bolts 12, and a nut 13. The clamping body 7 is fixed to the platform 11 with bolts 12 and nuts 6. The shaft 1 and the bending mold 2 are connected by the key 3 and then inserted into the clamping body 7. The support core rod 10 is adjusted to a suitable position and fixed to the platform 11 with nuts 13. The guide plate 4 is adjusted to a suitable position and tightened to the clamping body 7 with T-bolts 5 and nuts 6. The entire tube passes through the support core rod 10, and the front end of the tube is placed into the bending mold 2 and tightened with pressure block 8 and bolts 9. The tube is bent by rotating the shaft 1.
[0021] The bending die 2, which is formed by bending as a whole, is symmetrical on the left and right. The pressure block 8 can be fixed on the left or right side of the clamping part of the bending die 2. The guide plate 4 can be used on the left or right side of the clamping body 7, or one can be installed on each side. The support core rod 10 can be adjusted in the left and right or front and back positions.
[0022] This integral bending forming fixture allows for quick replacement of bending dies with different bending radii (30≤R≤180). The guide plate can be adjusted to the left or right position according to the left or right rotation direction of the part. After adjusting the gap between the guide plate and the bending die, tighten the guide plate. The pipe is positioned and bent from one end. By quickly changing the bending die, different bending radii can be achieved. The left and right rotation functions of the bending die can meet the requirements of the drawing and solve the interference problem between the forming part of the pipe and the bending forming fixture, thus achieving integral bending forming of the pipe.
[0023] Key points of this utility model
[0024] 1. The integral bending forming fixture for thin-walled copper tubes consists of a shaft, bending die, guide plate, clamping body, pressure block, support core rod, platform, and fasteners.
[0025] 2. The bending die has left and right rotation functions; the guide plate and pressure block can be fixed on the left or right side of the clamping part of the bending die. The guide plate can be used on the left or right side of the clamping body, or one can be installed on each side; the position of the support core rod can be adjusted left and right, and front and back.
[0026] 3. During the bending process, it is not necessary to remove the pipe. The bending mold, support core rod, guide plate, and pressure block positions can be quickly changed to achieve the left-hand or right-hand rotation of the pipe as required by the drawing and solve the interference problem between the pipe forming part and the bending forming tooling, so as to achieve the overall bending forming of the pipe.
[0027] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and improvements without departing from the principles of the present invention, and these modifications and improvements should also be considered to fall within the protection scope of the present invention.
Claims
1. A tooling for integral bending and forming of thin-walled copper tubes, characterized in that, Includes a shaft (1), a bending mold (2), a guide plate (4), a clamping body (7), a pressure block (8), a support core rod (10), and a platform (11). The clamping body (7) is fixed on the upper surface of the platform (11). The bottom of the shaft (1) is vertically installed above the clamping body (7), and the two are rotatably connected. The bending mold (2) is fixed in the middle of the shaft (1) and can rotate with the shaft (1). The clamp body (7) has symmetrical grooves on the left and right sides. The guide plate (4) is set in the corresponding groove by bolts. The position of the guide plate (4) can be adjusted in the groove. The pressure block (8) is fixed on one side of the bending mold (2), and one end of the copper tube to be processed is sleeved on the support core rod (10). The support core rod (10) is horizontally fixed above the platform (11); the other end of the copper tube to be processed is fastened between the pressure block (8) and the bending mold (2). The inner side of the guide plate (4) is provided with a support part for cooperating with the middle part of the support core rod (10).
2. The integral bending and forming tooling for thin-walled copper tubes according to claim 1, characterized in that, The clamp is fixedly connected to the platform by bolts and nuts.
3. The integral bending and forming tooling for thin-walled copper tubes according to claim 1, characterized in that, The pipe bending die can rotate left and right along the shaft.
4. The integral bending and forming tooling for thin-walled copper tubes according to claim 1, characterized in that, The position of the support core rod can be adjusted left and right, as well as forward and backward.