Auxiliary machining device for outer conical surface of large ultrathin variable-diameter cylinder
By designing an auxiliary machining device for the outer conical surface of a large, ultra-thin variable-diameter cylinder, and using a support ring to stably support the workpiece, the problems of deformation and accuracy during machining were solved, thus improving machining quality and efficiency and reducing costs.
Patent Information
- Application Number
- CN202421924601.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-09
AI Technical Summary
Existing large, ultra-thin, variable-diameter conical shells are easily damaged during processing. Existing processing fixtures are inefficient, of low quality, and cannot meet the requirements for accuracy and safety, and have poor interchangeability.
A large-scale ultra-thin variable-diameter cylindrical outer conical surface auxiliary processing device was designed, including a first support device and a second support fixture. The support ring provides stable support for the workpiece to prevent deformation, and the workpiece is securely installed through a threaded connection.
It improves the surface roughness of the workpiece, increases the contact area, reduces the labor intensity of workers, improves production efficiency, saves assembly time, and reduces labor costs.
Smart Images
Figure CN223172455U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of machining equipment, in particular to an auxiliary machining device for the outer conical surface of a large-sized ultra-thin variable-diameter cylinder body. Background Technique
[0002] Cadmium antimonide material is a new type of semiconductor material, which has the characteristics of suitable optical band gap, low material cost, large absorption coefficient, stable chemical properties, and low crystal growth temperature. It is a promising thin-film photovoltaic material for the light absorber of solar cells and is very suitable for making new thin-film solar cells. Cadmium antimonide thin films are prepared by radio frequency magnetron sputtering method in a vacuum coating equipment, and cadmium antimonide thin films are prepared by changing conditions such as different sputtering powers, substrate temperatures, and chamber pressures.
[0003] The vacuum coating equipment chamber has a large-sized ultra-thin variable-diameter conical shell. During the machining and manufacturing process, the large-sized ultra-thin variable-diameter conical shell has extremely high requirements for the machining accuracy of each component structural part, and no appearance damage to the shell is allowed during the production process. The conical shell has gone through thousands of processes from the blank to the product, and a large number of transfers, clampings, and unclampings are involved in each process, which is extremely easy to cause damage to the conical shell. This makes the protection of the product during the process particularly important.
[0004] This type of shell is a large-sized ultra-thin variable-diameter conical structure. To ensure the machining accuracy, safety, and reliability of the outer surface and end face of the shell, a numerically controlled horizontal lathe is selected and the machining is completed with a high-precision tooling. It is necessary to first vertically install the conical shell and the turning fixture together, and then hoist the whole of the conical shell and the turning fixture onto the lathe. After the machining is completed, the whole of the conical shell and the turning fixture is removed from the lathe. The existing machining fixture process has low efficiency and poor quality, cannot fundamentally meet the requirements of contact area and roughness, and has poor interchangeability. Summary of the Utility Model
[0005] The purpose of the utility model is to overcome the defects existing in the prior art and provide an auxiliary machining device for the outer conical surface of a large-sized ultra-thin variable-diameter cylinder body.
[0006] To achieve the above purpose, the technical solution of the utility model is to design an auxiliary machining device for the outer conical surface of a large-sized ultra-thin variable-diameter cylinder body, including a first support device. The first support device includes a core shaft. One end of the core shaft has a stepped shaft head, and there is a nut in threaded cooperation on the shaft head. A pressing plate is provided at the end of the core shaft away from the shaft head. The pressing plate is provided with a group of through holes and threaded holes arranged in a circular array. A first support ring is movably connected to the core shaft between the shaft head and the pressing plate. A first socket head cap screw is provided on the pressing plate in threaded connection and abuts against the first support ring. The outer circumference of the first support ring is a conical surface.
[0007] A further preferred technical solution is that a second support ring is movably connected to the mandrel between the shaft head and the pressing plate. A second socket head cap screw is threadedly connected to the pressing plate and abuts against the second support ring. The outer periphery of the second support ring is a conical surface.
[0008] A further preferred technical solution is that a group of first counterbores arranged in an annular array are provided on one side of the first support ring close to the pressing plate, and the end of the first socket head cap screw abuts in the first counterbore on the first support ring.
[0009] A further preferred technical solution is that a group of second counterbores arranged in an annular array are provided on one side of the second support ring close to the pressing plate, and the end of the second socket head cap screw abuts in the second counterbore on the second support ring.
[0010] A further preferred technical solution is that it further includes a second support tooling. The second support tooling includes a central shaft. A first pressing block is provided at one end of the central shaft, and a second pressing block is provided at the other end. A group of first through holes arranged in an annular array are provided on the first pressing block, and a group of second through holes arranged in an annular array are also provided on the second pressing block. A group of axial threaded holes and radial threaded holes penetrating to the outside of the second pressing block are further provided on the second pressing block. A support ring is movably connected to the central shaft between the first pressing block and the second pressing block. A socket head cap screw is threadedly connected to the second pressing block and abuts against the support ring. The outer periphery of the support ring is a conical surface.
[0011] A further preferred technical solution is that a group of counterbores arranged in an annular array are provided on one side of the support ring close to the second pressing block, and the end of the socket head cap screw abuts in the counterbore on the support ring.
[0012] The advantages and beneficial effects of the present utility model are as follows: The workpiece is stably supported by the internal support ring, preventing deformation during the cutting process on the outer periphery of the workpiece.
[0013] The surface roughness of the machined surface of the workpiece is greatly improved, the contact area is large, the labor intensity of workers is greatly reduced, the labor cost of production enterprises is reduced, the production efficiency is greatly improved, and a lot of assembly time is saved. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a cross-sectional view of the first support device of the present utility model;
[0015] Figure 2 For the present utility model Figure 1 View B-B;
[0016] Figure 3 For the present utility model Figure 1 View C-C;
[0017] Figure 4 For the present utility model Figure 1 the D-D view;
[0018] Figure 5 is the sectional view of the second support device of the present utility model;
[0019] Figure 6 For the present utility model Figure 5 the right view;
[0020] Figure 7 For the present utility model Figure 5 the A-A view.
[0021] In the figure: 10, mandrel; 11, shaft head; 12, nut; 20, workpiece; 30, first support ring; 31, first counterbore; 40, second support ring; 41, second counterbore; 42, perforation; 50, first socket head cap screw; 60, auxiliary support ring; 70, pressing plate; 71, through hole; 72, threaded hole; 80, second socket head cap screw; 90, central axis; 100, first pressing block; 101, first through hole; 110, support ring; 111, counterbore; 120, socket head cap screw; 130, second pressing block; 131, radial threaded hole; 132, axial threaded hole. Specific embodiments
[0022] The following combines the drawings and embodiments to further describe the specific embodiments of the present utility model. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.
[0023] Refer to Figures 1-7, a large-scale ultra-thin variable-diameter cylinder outer conical surface auxiliary processing device, including a first support device. The first support device includes a mandrel 10. The mandrel 10 is a hollow mandrel. The hollow mandrel has good strength and is lighter in mass than a solid one. One end of the hollow mandrel has a stepped shaft head 11. The shaft head 11 is installed at the end of the mandrel 10 and is fixedly connected by welding. The shaft head 11 has a section of connecting thread. There is a nut 12 in threaded fit with the shaft head 11. At the end of the hollow mandrel away from the shaft head 11, there is a protruding step. A pressing plate 70 is provided on the step. The core of the pressing plate 70 has a core hole passing through the body and is matched with the hollow mandrel. The pressing plate 70 is sleeved on the hollow mandrel and is fixedly connected to the hollow mandrel by welding. The pressing plate 70 is provided with a group of through holes 71 arranged in a circular array. The pressing plate 70 is also provided with a group of threaded holes 72 arranged in a circular array. The through holes 71 penetrate the pressing plate 70 along the axial direction. The pressing plate 70 is also provided with a group of process holes arranged in a circular array. Through the process holes, the material on the pressing plate 70 can be removed, reducing the weight of the pressing plate 70 while ensuring the strength of the pressing plate 70. The outer periphery of the pressing plate 70 is a cylindrical surface.
[0024] On the hollow mandrel between the shaft head 11 and the pressing plate 70, there are also a first support ring 30 and a second support ring 40. The first support ring 30 and the second support ring 40 are spaced on the hollow mandrel. The core of the first support ring 30 has a core hole and is matched with the hollow mandrel. The first support ring 30 is sleeved on the hollow mandrel. On the side of the first support ring 30 close to the pressing plate 70, there is a group of first counterbores 31 arranged in a circular array. The outer periphery of the first support ring 30 is a conical surface. The core of the second support ring 40 has a core hole and is matched with the hollow mandrel. The second support ring 40 is sleeved on the hollow mandrel. On the side of the second support ring 40 close to the pressing plate 70, there is a group of second counterbores 41 arranged in a circular array. The second support ring 40 is also provided with a group of through holes 42 arranged in a circular array and staggered with the second counterbores 41. The outer periphery of the second support ring 40 is a conical surface. In one embodiment, the second support ring 40 is composed of two semi-circular symmetric structures, which is convenient for installation.
[0025] During use, the workpiece 20 is sleeved on the mandrel 10 from one end of the shaft head 11, and the position of the workpiece 20 close to the pressing plate 70 is locked on the pressing plate 70 by bolts and nuts. Then, a set of first socket head cap screws 50 cooperate with the threaded holes on the pressing plate 70. By tightening the first socket head cap screws 50 on the pressing plate 70 and passing through the perforations 42 on the second support ring 40, the first support ring 30 is pressed, and the outer conical surface of the first support ring 30 is fitted with the inner conical surface of the workpiece 20 to support the inner conical surface of the workpiece 20. Then, a set of second socket head cap screws 80 cooperate with the threaded holes on the pressing plate 70. By tightening the second socket head cap screws 80 on the pressing plate 70, the second support ring 40 is pressed, and the outer conical surface of the second support ring 40 is fitted with the inner conical surface of the workpiece 20 to support the inner conical surface of the workpiece 20. The first support ring 30 and the second support ring 40 are arranged alternately.
[0026] The end of the first socket head cap screw 50 abuts against the first counterbore 31 on the first support ring 30, and the end of the second socket head cap screw 80 abuts against the second counterbore 41 on the second support ring 40. The first socket head cap screws 50 and the second socket head cap screws 80 are installed alternately on the pressing plate 70.
[0027] Finally, the workpiece 20 is locked on the mandrel 10 by a nut 12 on the shaft head 11, and the inner first support ring 30 and second support ring 40 form a stable support for the workpiece 20 to prevent deformation during the cutting process on the outer periphery of the workpiece 20. During use, an auxiliary support ring 60 can also be arranged at one end of the workpiece 20 close to the pressing plate 70.
[0028] After the workpiece 20 is clamped on the mandrel 10, the workpiece 20 can be installed on the machine tool through the mandrel 10 to perform cutting processing on the conical surface of the workpiece 20. The surface roughness is greatly improved, the contact area is large, the labor intensity of workers is greatly reduced, the labor cost of production enterprises is reduced, the production efficiency is greatly improved, and a lot of assembly time is saved.
[0029] It also includes a second support tooling, which includes a central shaft 90. The central shaft 90 is a hollow core shaft. The hollow core shaft has good strength and is lighter in mass than a solid one. At positions near both ends of the central shaft 90, there are protruding steps. A first pressing block 100 is provided on one of the steps, and a second pressing block 130 is provided on the other step. The core part of the first pressing block 100 has a core hole penetrating the body to cooperate with the central shaft 90. The first pressing block 100 is sleeved on the central shaft 90 and fixedly connected to the central shaft 90 by welding. The first pressing block 100 is provided with a group of first through holes 101 arranged in a circular array. The first through holes 101 penetrate the first pressing block 100 along the axial direction. The first pressing block 100 is also provided with a group of process holes arranged in a circular array. Through the process holes, the material on the first pressing block 100 can be removed to reduce the weight of the first pressing block 100, and at the same time, the strength of the first pressing block 100 can be ensured. The outer periphery of the first pressing block 100 is a cylindrical surface.
[0030] The core part of the second pressing block 130 has a core hole penetrating the body to cooperate with the central shaft 100. The second pressing block 130 is sleeved on the central shaft 100 and fixedly connected to the central shaft 100 by welding. The second pressing block 130 is provided with a group of process holes arranged in a circular array. Through the process holes, the material on the second pressing block 130 can be removed to reduce the weight of the second pressing block 130, and at the same time, the strength of the second pressing block 130 can be ensured. The second pressing block 130 is also provided with a group of axial threaded holes 132 arranged in a circular array. On one side of the second pressing block 130 where the process holes are close to the outer side, there is a group of radial threaded holes 131 arranged radially. The radial threaded holes 131 penetrate to the outside of the second pressing block 130. The outer periphery of the second pressing block 130 is a cylindrical surface.
[0031] On the central shaft 10 between the first pressing block 100 and the second pressing block 130, there is also a support ring 110. The core part of the support ring 110 has a core hole to cooperate with the central shaft 90. The support ring 110 is sleeved on the central shaft 90. On one side of the support ring 110 close to the second pressing block 130, there is a group of counterbores 111 arranged in a circular array. The outer periphery of the support ring 110 is a conical surface.
[0032] The support ring 110 is also provided with a group of process holes arranged in a circular array. Through the process holes, the material on the support ring 110 can be removed to reduce the weight of the support ring 110, and at the same time, the strength of the support ring 110 can be ensured.
[0033] During use, the workpiece 20 is sleeved on the central shaft 90 from one end of the first pressing block 100. The position of the workpiece 20 close to the first pressing block 100 is locked on the first pressing block 100 by a set of screws. The position of the workpiece 20 close to the second pressing block 130 is locked on the second pressing block 130 by a set of radially arranged screws. Then, a set of socket head cap screws 120 cooperate with the axial threaded holes 132 of the second pressing block 130. The socket head cap screws 120 are locked and pressed on the support ring 110 on the second pressing block 130, and the outer conical surface of the support ring 110 is matched with the inner conical surface of the workpiece 20 to form a support for the inner conical surface of the workpiece 20.
[0034] The end of the socket head cap screw 120 abuts against the counterbore 111 on the support ring 110, and the end of the socket head cap screw 120 is inserted into the counterbore 111 on the support ring 110.
[0035] A stable support for the workpiece 20 is formed by the internal support ring 110 to prevent deformation during the cutting process on the outer periphery of the workpiece 20.
[0036] After the workpiece 20 is clamped on the central shaft 90, the workpiece 20 can be installed on the machine tool through the central shaft 90 to perform cutting processing on the surface of the workpiece.
[0037] The first support device and the second support device can also be used simultaneously. The two ends of the workpiece 20 are respectively installed on the first support device and the second support device, and then the workpiece 20 is installed on the machine tool to perform cutting processing on the surface of the workpiece.
[0038] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.
Claims
1. Large ultra-thin variable-diameter cylinder external conical surface auxiliary processing device, characterized in that, Comprising a first support device, the first support device includes a mandrel, one end of the mandrel has a stepped shaft head, a nut in threaded fit is provided on the shaft head, a pressing plate is provided at the end of the mandrel away from the shaft head, a group of through holes and threaded holes arranged in an annular array are provided on the pressing plate, a movably connected first support ring is provided on the mandrel between the shaft head and the pressing plate, a first socket head cap screw in threaded connection is provided on the pressing plate and abuts against the first support ring, and the outer periphery of the first support ring is a conical surface.
2. The large-sized ultra-thin variable-diameter cylinder outer conical surface auxiliary processing device according to claim 1, wherein A movably connected second support ring is further provided on the mandrel between the shaft head and the pressing plate, a second socket head cap screw in threaded connection is provided on the pressing plate and abuts against the second support ring, and the outer periphery of the second support ring is a conical surface.
3. The large-sized ultra-thin variable-diameter cylinder outer conical surface auxiliary processing device according to claim 1 or 2, characterized in that, A group of first counterbores arranged in an annular array are provided on one side of the first support ring close to the pressing plate, and the end of the first socket head cap screw abuts in the first counterbore on the first support ring.
4. The large-sized ultra-thin variable-diameter cylinder outer conical surface auxiliary processing device according to claim 2, wherein, A group of second counterbores arranged in an annular array are provided on one side of the second support ring close to the pressing plate, and the end of the second socket head cap screw abuts in the second counterbore on the second support ring.
5. The large-sized ultra-thin variable-diameter cylinder outer conical surface auxiliary processing device according to claim 1, wherein Further comprising a second support tooling, the second support tooling includes a central shaft, a first pressing block is provided at one end of the central shaft, a second pressing block is provided at the other end, a group of first through holes arranged in an annular array are provided on the first pressing block, a group of second through holes arranged in an annular array are also provided on the second pressing block, a group of axial threaded holes and radial threaded holes penetrating to the outside of the second pressing block are further provided on the second pressing block, a movably connected support ring is provided on the central shaft between the first pressing block and the second pressing block, a socket head cap screw in threaded connection is provided on the second pressing block and abuts against the support ring, and the outer periphery of the support ring is a conical surface.
6. The large-sized ultra-thin variable-diameter cylinder outer conical surface auxiliary processing device according to claim 5, characterized in that, A group of counterbores arranged in an annular array are provided on one side of the support ring close to the second pressing block, and the end of the socket head cap screw abuts in the counterbore on the support ring.