Rotary jig for copper material production
By designing a rotary fixture, a conical top platform and a hydraulic pump are used to internally support the copper tube and ensure uniform heat dissipation, solving the deformation problem of thin-walled copper tubes during polishing, and achieving stable processing and reduced losses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN DINGSHENG NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-21
AI Technical Summary
Existing technologies for rotary polishing of thin-walled copper tubes are prone to deformation and damage due to clamping and heat.
A rotary fixture is used, with the first and second conical top platforms supporting both ends of the copper tube. Water is injected into the copper tube by a hydraulic pump to pressurize it, and combined with a rubber layer to prevent wear, uniform heat dissipation and cooling are achieved to prevent deformation.
It effectively prevents the copper tube from deforming during clamping and polishing, reduces waste costs, and ensures smooth processing.
Smart Images

Figure CN224144306U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of copper processing equipment, and in particular to a rotary fixture for copper production. Background Technology
[0002] Currently, when performing rotary polishing on copper tubes, a triangular chuck mounted on a rotating table is typically used to clamp or support one end of the steel tube. The rotating table is then controlled to rotate, causing the copper tube to rotate. A polishing machine is then used to polish the outer surface of the copper tube. However, because copper is relatively soft, thin-walled copper tubes are prone to deformation due to external clamping, internal support, or the heat generated during the polishing process, which can damage the steel tube. Utility Model Content
[0003] In order to overcome the shortcomings of the prior art and solve the existing technical problems, this utility model discloses a rotary fixture for copper material production, which can stably hold copper tubes and prevent polishing deformation.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A rotary fixture for copper material production includes a water tank, a hydraulic pump, a rotary joint, a guide pipe, a movable cross brace, a base, and a column fixed to the upper surface of the base. One end of the movable cross brace is engaged with the column and can move and be positioned along the column's axial direction. A fixed cross brace is mounted on the upper surface of the base, corresponding to the movable cross brace directly below it. A first conical top platform and a second conical top platform are rotatably mounted on the opposing surfaces of the fixed and movable cross braces via a rotating shaft. The first and second conical top platforms are coaxial and their cones are correspondingly positioned. The rotating shaft of the first conical top platform is a first hollow shaft with both ends exposed. The lower end of the first hollow shaft is driven to rotate by a drive motor. The two ends of the rotary joint are respectively connected to the lower port of the first hollow shaft and one end of the guide pipe. The other end of the guide pipe extends into the water tank. A hydraulic pump for applying flow pressure to the fluid in the guide pipe is installed on the guide pipe. A first control valve and a pressure detector are installed on the guide pipe between the hydraulic pump and the rotary joint.
[0006] Furthermore, a driven wheel is coaxially fixed to the lower end of the first hollow shaft, and a driving wheel that meshes with the driven wheel is coaxially fixed to the output shaft of the drive motor.
[0007] Furthermore, the column body is fixed with a slide rail along the column axis, and a slider is slidably fitted on the slide rail, and the movable cross brace is fixedly connected to the slider.
[0008] Furthermore, the slider is driven to move by a lead screw and nut pair or a hydraulic cylinder.
[0009] Furthermore, the conical surfaces of the first and second conical top platforms are covered with a rubber layer.
[0010] Furthermore, the pivot of the second conical top platform is a second hollow shaft with both ends exposed. The upper end of the second hollow shaft is connected to the water tank via a flexible hose, and a second control valve is installed on the hose.
[0011] By adopting the technical solution described above, this utility model has the following beneficial effects:
[0012] The rotary fixture for copper material production disclosed in this utility model uses a first conical top platform and a second conical top platform to support both ends of the copper tube and drive the copper tube to rotate. At the same time, it can also inject water into the copper tube through a hydraulic pump to pressurize it, so that the copper tube is subjected to internal support force and is not easily deformed. Moreover, the water in the copper tube can also dissipate heat and cool the entire copper tube evenly, thereby ensuring that the copper tube is not damaged during clamping and polishing, ensuring the smooth progress of copper tube processing, and reducing waste costs. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of one embodiment of the present utility model;
[0014] Figure 2 This is a schematic diagram of the connection structure of the rotating shaft;
[0015] Figure 3 This is a schematic diagram of another embodiment of the present invention.
[0016] In the diagram: 1. Fixed cross brace; 2. First conical top platform; 3. First hollow shaft; 4. Second conical top platform; 5. Movable cross brace; 6. Slider; 7. Slide rail; 8. Column; 9. Hydraulic pump; 10. Guide pipe; 11. Water tank; 12. Base; 13. First control valve; 14. Drive motor; 15. Driven wheel; 16. Rotary joint; 17. Pressure detector; 18. Drive wheel; 19. Hose; 20. Second control valve. Detailed Implementation
[0017] The technical solution of this utility model will be described below with reference to the accompanying drawings of the embodiments of this utility model. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this utility model for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation. Example 1:
[0018] Combined with appendix Figure 1-2The rotary fixture for copper material production includes a water tank 11, a hydraulic pump 9, a rotary joint 16, a guide pipe 10, a movable cross brace 5, a base 12, and a column 8 erected and fixed on the upper surface of the base 12. One end of the movable cross brace 5 is engaged with the column 8 and can move and be positioned along the axial direction of the column 8, as shown in the attached figure. Figure 1 As shown, the column 8 is located in the middle of the upper surface of the base 12, the water tank 11 is placed on the left side of the upper surface of the base 12, and the movable cross brace 5 is clamped on the right side of the column 8. The layout is compact and does not interfere with each other. Specifically, the column 8 is fixed with a slide rail 7 along the axial direction of the column 8. A slider 6 is slidably fitted on the slide rail 7. The movable cross brace 5 is fixedly connected to the slider 6. The slider 6 is driven to move along the slide rail 7 by a screw and nut pair. That is, the slider 6 is fixedly connected to the nut. The screw and column 8 are rotated and axially positioned. The slider 6 is driven to move up and down by rotating the screw. This screw and nut pair drive structure This is existing technology and will not be elaborated further here. The main focus is on ensuring that the distance between the movable cross brace 5 and the fixed cross brace 1 can be adjusted and positioned. A fixed cross brace 1, corresponding to the one directly below the movable cross brace 5, is mounted on the upper surface of the base 12. Specifically, one end of the fixed cross brace 1 is fixedly connected to the corresponding column of the column 8, while the lower surface of the other end of the fixed support is fixed to the upper surface of the base 12 via a support leg, thus providing an installation space below the fixed support. The surfaces opposite to the fixed cross brace 1 and the movable cross brace 5 are respectively rotatably mounted with a first conical top platform 2 and a second conical top platform 4 via a rotating shaft, as shown in the attached diagram. Figure 2 As shown, the upper shaft of the rotating shaft is coaxially fixed with the first conical top platform 2, and the lower shaft of the rotating shaft is provided with a shoulder. It is installed in the bearing seat of the fixed cross brace 1 through radial bearings and thrust bearings. The specific rotating installation structure is existing technology and will not be described in detail here. The first conical top platform 2 and the second conical top platform 4 are coaxial and the cones are set correspondingly, so that the two ends of the copper tube can respectively abut against the cone ends of the first conical top platform 2 and the second conical top platform 4 for axial and radial positioning. Moreover, the conical surface can also adapt to copper tubes of different diameters. As needed, the conical surfaces of the first conical top platform 2 and the second conical top platform 4 are covered with a rubber layer, which can prevent wear on the copper tube and ensure the sealing after the two ends of the copper tube are tightened.
[0019] The first conical top platform 2 has a rotating shaft 3 with both ends exposed. The lower end of the first hollow shaft 3 is driven to rotate by a drive motor 14. Specifically, a driven wheel 15 is coaxially fixed to the lower end of the first hollow shaft 3. The drive motor 14 is installed below the fixed cross brace 1, and a driving wheel 18 that meshes with the driven wheel 15 is coaxially fixed to the output shaft of the drive motor 14. When the drive motor 14 starts, it can drive the first hollow shaft 3 to rotate through transmission. The two ends of the rotary joint 16 are respectively connected to the lower port of the first hollow shaft 3 and one end of the guide tube 10. The rotary joint 16 is used to connect... The first hollow shaft 3 and the guide pipe 10 are connected, and the guide pipe 10 is not rotated along with the first hollow shaft 3 when the first hollow shaft 3 rotates. The other end of the guide pipe 10 extends into the bottom of the water tank 11. A hydraulic pump 9 is installed on the guide pipe 10 to apply flow pressure to the fluid in the guide pipe 10. A first control valve 13 and a pressure detector 17 are installed on the body of the guide pipe 10 between the hydraulic pump 9 and the rotary joint 16. The hydraulic pump 9 can inject water into the copper pipe and pump water in forward and reverse directions, and the pressure detector 17 can be connected to the hydraulic pump 9 and the first control valve 13 respectively for linkage control.
[0020] The rotary fixture for copper production according to this invention allows the lower end of the copper tube to be polished to be placed coaxially on the first conical top platform 2. Then, the movable cross brace 5 is controlled to move downwards so that the second conical top platform 4 just contacts the upper end of the copper tube. After that, the first control valve 13 and the hydraulic pump 9 are opened to draw water from the water tank 11 into the copper tube through the guide pipe 10 and the first hollow shaft 3. When water gushes out from the upper end of the copper tube, the second conical top platform 4 is controlled to press down and press against the copper tube until there is no water leakage. Then, after the pressure detector 17 detects the predetermined pressure, the first control valve 13 and the hydraulic pump 9 are closed. After that, the drive motor 14 can be started to drive the copper tube to rotate for polishing. The specific pressure set by the pressure detector 17 is related to the wall thickness of the copper tube and the downward pressure of the second conical top platform 4. Generally, it does not need to be too high, as long as it is within the pressure range that the copper tube can withstand to ensure no water leakage. Example 2:
[0021] As attached Figure 3 As shown, the difference from Embodiment 1 is that when the polishing process generates severe heat and requires cooling with circulating water, the shaft of the second conical top platform 4 can be designed as a second hollow shaft with both ends exposed. The upper end of the second hollow shaft is connected to the water tank 11 via a hose 19. A second control valve 20 is installed on the hose 19. Water entering the copper pipe from the first hollow shaft 3 can circulate back to the water tank 11 through the second hollow shaft. Moreover, by adjusting the flow rate through the second control valve 20, a certain pressure can still be maintained inside the copper pipe, which provides internal support for the copper pipe. In addition, the movable cross brace 5 can be moved by a hydraulic cylinder. Specifically, the two ends of the hydraulic cylinder are fixedly connected to the base 12 and the movable cross brace 5, respectively.
[0022] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the above embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended to include all changes that fall within the meaning and scope of the equivalents of the claims in this utility model, and no reference numerals in the claims should be regarded as limiting the content of the claims.
Claims
1. A rotary jig for producing a copper product, characterized by: The device includes a water tank, a hydraulic pump, a rotary joint, a flow guide pipe, a movable cross brace, a base, and a column fixed to the upper surface of the base. One end of the movable cross brace is fitted into the column and can move and be positioned along the column's axial direction. A fixed cross brace is mounted on the upper surface of the base, corresponding to the movable cross brace directly below it. The surfaces of the fixed cross brace and the movable cross brace are respectively rotatably mounted with a first conical top platform and a second conical top platform via a rotating shaft. The first and second conical top platforms are coaxial and their cones are correspondingly positioned. The rotating shaft of the first conical top platform is a first hollow shaft with both ends exposed. The lower end of the first hollow shaft is driven to rotate by a drive motor. The two ends of the rotary joint are respectively connected to the lower port of the first hollow shaft and one end of the flow guide pipe. The other end of the flow guide pipe extends into the water tank. A hydraulic pump for applying flow pressure to the fluid in the flow guide pipe is installed on the flow guide pipe. A first control valve and a pressure detector are installed on the flow guide pipe between the hydraulic pump and the rotary joint.
2. The rotating jig for producing a copper material according to claim 1, characterized by: The lower end of the first hollow shaft is coaxially fixed with a driven wheel, and the output shaft of the drive motor is coaxially fixed with a driving wheel that meshes with the driven wheel.
3. The rotating jig for producing a copper material according to claim 1, characterized by: The column body is fixed with a slide rail along the column axis, and a slider is slidably fitted on the slide rail. The movable cross brace is fixedly connected to the slider.
4. The rotating jig for producing a copper material according to claim 3, characterized by: The slider is moved by a lead screw and nut pair or a hydraulic cylinder.
5. The rotating jig for producing a copper material according to claim 1, characterized by: The conical surfaces of the first and second conical top platforms are covered with a rubber layer.
6. The rotating jig for producing a copper material according to claim 1, characterized by: The pivot of the second conical top platform is a second hollow shaft with both ends exposed. The upper end of the second hollow shaft is connected to the water tank through a hose, and a second control valve is installed on the hose.