Spinning thin-wall part machining device

Abstract

The utility model relates to the technical field of part machining equipment, in particular to a spinning thin-wall part machining device. The utility model provides a spinning thin-walled part machining device which comprises a compression-resistant foam ring, a spinning thin-walled part machining device and a spinning thin-walled part machining device, the compression-resistant foam ring is arranged in an inner cavity of a to-be-machined part, the to-be-machined part is clamped and fixed to a machining tool through a chuck, and the compression-resistant foam ring is flush with the side, clamped and fixed to the machining tool, of the to-be-machined part; the inner tube assembly is provided with a part containing cavity and is clamped and fixed to the machining tool, the part to be machined is arranged in the part containing cavity, and the outer wall of the part to be machined is tightly attached to the inner wall of the part containing cavity; the outer tire assembly is clamped and fixed to the machining machine tool, a to-be-machined part is fixed to the outer tire assembly in a sleeving mode, and the inner wall of the to-be-machined part is tightly attached to the outer wall of the outer tire assembly.

Description

Technical Field

[0001] This utility model relates to the field of parts processing equipment technology, specifically, to a spinning thin-walled parts processing device. Background Technology

[0002] Currently, tapered thin-walled parts are usually machined internally and externally using traditional bar stock to ensure the dimensional requirements of the drawings. This traditional machining method is not only time-consuming, but also wastes a lot of raw materials. Preliminary statistics show that the waste rate is over 95%, resulting in high costs.

[0003] Currently, spinning technology is used to spin-form aluminum or steel sheets into shapes. However, due to the limitations of spinning technology's precision, the spun parts cannot meet the dimensional requirements and surface finish of the finished products, necessitating further machining. Currently, spun parts have a single-sided allowance of only 1-2mm, and most are tapered, making them unsuitable for clamping using a CNC milling machine's three-jaw chuck. Furthermore, the total thickness of spun parts is only 6mm on each side. Without suitable tooling, part deformation during clamping can occur, compromising final accuracy and leaving clamping marks that affect the surface finish of the spun parts.

[0004] Therefore, there is an urgent need to develop a machining device for spinning thin-walled parts that can meet the requirements of accuracy and surface finish. Utility Model Content

[0005] This invention provides a spinning thin-walled parts processing device to at least solve the problem that existing spinning thin-walled parts processing cannot guarantee accuracy and surface finish.

[0006] To achieve the above objectives, this utility model provides a spinning thin-walled parts processing device, comprising:

[0007] An anti-compression foam ring is installed in the inner cavity of the part to be processed. The part to be processed is clamped and fixed on the machine tool by a chuck. The anti-compression foam ring is flush with the side of the part to be processed that is clamped and fixed on the machine tool.

[0008] The inner tube assembly has a part receiving cavity, which is clamped and fixed to the processing machine tool. The part to be processed is installed in the part receiving cavity, and the outer wall of the part to be processed is tightly attached to the inner wall of the part receiving cavity.

[0009] The outer tire assembly is clamped and fixed to the processing machine tool, and the part to be processed is sleeved and fixed to the outer tire assembly, with the inner wall of the part to be processed tightly fitting the outer wall of the outer tire assembly.

[0010] Furthermore, both the inner tube assembly and the outer tire assembly are provided with a chuck clamping end, which is used to clamp and fix them to the machine tool.

[0011] Furthermore, the inner tube assembly includes a first inner tube mold and a second inner tube mold, which are joined together to form the part receiving cavity.

[0012] Furthermore, at least one fixing plate assembly is installed on the annular wall of the part receiving cavity opening side of the inner tube assembly, with one end of the fixing plate assembly pressed against the inner tube assembly and the other end pressed against the part to be processed.

[0013] Furthermore, the outer tire assembly is clamped and fixed to one side of the machine tool and has a positioning position.

[0014] Furthermore, it also includes a tail cap, which, when the part to be processed is fitted onto the outer tire assembly, presses the part to be processed with a hydraulic press.

[0015] Furthermore, when the part to be processed is fitted onto the outer tire assembly, the part to be processed has a tail-top pressing end, and there is a tail-top processing allowance between the tail-top pressing end and the tail-top.

[0016] Furthermore, the fixing plate assembly includes a fixing plate and fixing bolts, and the fixing plate is fixed to the inner tube assembly by the fixing bolts.

[0017] Furthermore, the fixing plate assembly is pressed onto one end of the part to be processed and does not extend beyond the inner wall of the part to be processed.

[0018] Furthermore, the fixing bolt is an M10 bolt.

[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0020] This utility model provides a spinning thin-walled parts processing device. By designing a special tooling, it solves the clamping problem of spinning thin-walled parts during processing, avoids deformation and indentation caused by clamping, and improves the surface finish and precision of spinning thin-walled parts.

[0021] This invention uses specialized tooling to precision machine the inner and outer walls of the spun thin-walled parts, ensuring consistency during processing and improving stability, reliability, and precision.

[0022] This utility model tooling structure is easy to operate, suitable for mass production, and helps to simplify the processing flow and improve production efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the assembly of the anti-compression foam ring in the rotating thin-walled parts processing device of this utility model;

[0024] Figure 2 This is a cross-sectional view of the inner tube assembly of the rotary thin-walled parts processing device of this utility model.

[0025] Figure 3 This is a schematic diagram of the inner tube assembly of the rotary thin-walled parts processing device of this utility model.

[0026] Figure 4 This is a schematic diagram of the outer tire assembly of the rotary thin-walled parts processing device of this utility model;

[0027] Figure 5 for Figure 4 Enlarged view of section I in the middle.

[0028] In the above image:

[0029] 1. Compression-resistant foam ring; 2. Inner tube assembly; 21. First inner tube mold; 22. Second inner tube mold; 23. Fixing plate; 24. Fixing bolt; 3. Outer tire assembly; 4. Parts to be processed; 5. Chuck; 6. Machining tool; 7. Tail top; 8. Hydraulic press; A. Positioning position; B. Tail top machining allowance. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] In the description of this application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "level," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not 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 application. 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] like Figures 1 to 3 As shown, this utility model provides a spinning thin-walled parts processing device, including: a pressure-resistant foam ring 1, an inner tube assembly 2, and an outer tube assembly 3.

[0034] like Figure 1 As shown, the pressure-resistant foam ring 1 is installed in the inner cavity of the part to be processed. The part to be processed 4 is clamped and fixed on the machine tool by the chuck 5 of the machine tool. The pressure-resistant foam ring 1 is flush with the side of the part to be processed 4 that is clamped and fixed on the machine tool.

[0035] In some embodiments, the compression-resistant foam ring 1 is installed in the inner cavity of the thin-walled part to be spun, ensuring that the compression-resistant foam ring 1 is flush with the side of the part 4 to be processed and fixed on the machine tool. The part 4 with the compression-resistant foam ring 1 installed in the inner cavity is clamped and fixed on the worktable of the machine tool by the chuck 5, tightened, and aligned by dial indicator. CNC programming is performed, and the part 4 is pre-processed by the machining tool 6, i.e., the outer surface is polished. Because the compression-resistant foam ring 1 has good support and elasticity, it can maintain the stability of the part 4 to be processed during the processing, preventing deformation during the pre-processing. The pre-processing can ensure the consistency of all parts in the later processing.

[0036] like Figures 2-3 As shown, the inner tube assembly 2 has a part receiving cavity, which is clamped and fixed to the machine tool being processed. The part to be processed 4 is installed in the part receiving cavity, and the outer wall of the part to be processed 4 is tightly attached to the inner wall of the part receiving cavity.

[0037] Preferably, the inner tube assembly 2 is provided with a chuck clamping end, which is clamped and fixed to the machine tool by the chuck 5.

[0038] Preferably, the inner tube assembly 2 includes a first inner tube mold 21 and a second inner tube mold 22, which are joined together to form a part receiving cavity.

[0039] Preferably, at least one fixing plate assembly is installed on the annular wall of the part receiving cavity opening side of the inner tube assembly 2, with one end of the fixing plate assembly pressed against the inner tube assembly 2 and the other end pressed against the part 4 to be processed.

[0040] Preferably, the fixing plate assembly includes a fixing plate 23 and fixing bolts 24, and the fixing plate 23 is fixed to the inner tube assembly 2 by the fixing bolts 24. The fixing plate assembly is pressed onto one end of the part to be processed 4 and does not extend beyond the inner wall of the part to be processed 4.

[0041] Preferably, the fixing bolt 24 is an M10 bolt.

[0042] In some embodiments, after the preliminary processing of the part 4 to be processed is completed, the internal cavity of the part 4 to be processed needs to be precision machined. First, the part 4 to be processed after its outer surface has been exposed to light is installed in the part receiving cavity of the inner tube assembly 2. In order to prevent the part 4 to be processed from having defects of inconsistent size during the preliminary processing and thus being unable to be installed in the inner tube assembly 2, the inner tube assembly 2 includes a first inner tube mold 21 and a second inner tube mold 22. The first inner tube mold 21 and the second inner tube mold 22 are joined together to form a part receiving cavity, so as to ensure that the part 4 to be processed can be effectively installed in the inner tube assembly 2.

[0043] In some embodiments, to further ensure the stability of the workpiece 4 installed in the inner tube assembly 2 during processing, symmetrical 2×M10 threaded holes are provided on the annular wall of the part receiving cavity opening side of the inner tube assembly 2. One end of the fixing plate 23 is pressed onto the workpiece 4, and the other end is pressed onto the inner tube assembly 2. The fixing plate 23 is fixed by M10 fixing bolts 24. When fixing, it is necessary to ensure that the fixing plate 23 does not exceed the inner wall of the workpiece 4, leaving a 1-2mm margin between the fixing plate 23 and the inner wall of the workpiece 4, so as to ensure that the fixing plate 23 will not affect the machining accuracy during the internal cavity finishing. The fixed workpiece 4 is installed on the CNC machine tool through the chuck 5, tightened and aligned with a dial indicator, CNC programmed, and the internal cavity finishing of the workpiece 4 is performed by the machining tool 6. At this time, the outer wall of the workpiece 4 is tightly attached to the inner wall of the part receiving cavity, ensuring that the thin wall does not deform and ensuring machining accuracy.

[0044] like Figure 4 As shown, the outer tire assembly 3 is clamped and fixed on the processing machine tool, and the part to be processed 4 is sleeved and fixed on the outer tire assembly 3, with the inner wall of the part to be processed 4 tightly attached to the outer wall of the outer tire assembly 3.

[0045] Preferably, each of the outer tire components 3 is provided with a chuck clamping end, which is clamped and fixed to the processing machine tool by the chuck 5.

[0046] Preferably, the outer tire assembly 3 is clamped and fixed on one side of the machine tool and has a positioning position A.

[0047] Preferably, it also includes a tail top 7. When the part to be processed 4 is fitted onto the outer tire assembly 3, the tail top 7 presses the part to be processed 4 with a hydraulic press 8.

[0048] like Figure 5As shown, preferably, when the part to be processed 4 is fitted onto the outer tire assembly 3, the part to be processed 4 has a tail top pressing end, and there is a tail top processing allowance B between the tail top pressing end and the tail top 7.

[0049] In some embodiments, after the inner cavity of the workpiece 4 is finished, the outer wall of the workpiece 4 is then finished. First, the tire assembly 3 is clamped and fixed to the machine tool using the chuck 5. To ensure consistency in the clamping of the tire assembly 3 on the machine tool, the tire assembly 3 is provided with a positioning position A. When clamping, the chuck 5 is clamped and fixed according to positioning position A. After tightening and alignment using a dial indicator, the workpiece 4, whose inner cavity has been finished, is fitted and fixed onto the tire assembly 3. The tailstock 7 is then pressed against the tailstock clamping end of the workpiece 4 by the hydraulic press 8 to fix it onto the tire assembly 3. The CNC program is then used to finish the outer surface of the workpiece 4 using the machining tool 6.

[0050] In some embodiments, to ensure machining accuracy, there is a machining allowance B between the tail clamping end and the tail 7 of the part to be processed 4. Generally, a machining allowance of about 1 mm thickness is left. After the outer surface is finished, the part to be processed 4 is removed from the outer tire assembly 3 and placed on a milling machine to clean the tail allowance B. Finally, the thin-walled part formed by spinning meets the accuracy and surface finish requirements of the drawing design.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A spinning thin-walled parts processing apparatus, characterized in that, include: An anti-compression foam ring is installed in the inner cavity of the part to be processed. The part to be processed is clamped and fixed on the machine tool by a chuck. The anti-compression foam ring is flush with the side of the part to be processed that is clamped and fixed on the machine tool. The inner tube assembly has a part receiving cavity, which is clamped and fixed to the processing machine tool. The part to be processed is installed in the part receiving cavity, and the outer wall of the part to be processed is tightly attached to the inner wall of the part receiving cavity. The outer tire assembly is clamped and fixed to the processing machine tool, and the part to be processed is sleeved and fixed to the outer tire assembly, with the inner wall of the part to be processed tightly fitting the outer wall of the outer tire assembly.

2. The spinning thin-walled parts processing apparatus according to claim 1, characterized in that, Both the inner tube assembly and the outer tube assembly are provided with a chuck clamping end, and are fixed to the processing machine tool by clamping with the chuck.

3. The spinning thin-walled parts processing apparatus according to claim 1, characterized in that, The inner tube assembly includes a first inner tube mold and a second inner tube mold, which are joined together to form the part receiving cavity.

4. The spinning thin-walled parts processing apparatus according to claim 1, characterized in that, At least one fixing plate assembly is installed on the annular wall of the part receiving cavity opening side of the inner tube assembly. One end of the fixing plate assembly is pressed against the inner tube assembly, and the other end is pressed against the part to be processed.

5. The spinning thin-walled parts processing apparatus according to claim 1, characterized in that, The outer tire assembly is clamped and fixed on one side of the machine tool and has a positioning position.

6. The spinning thin-walled parts processing apparatus according to claim 1, characterized in that, It also includes a tail cap, which, when the part to be processed is fitted onto the outer tire assembly, presses the part to be processed with a hydraulic press.

7. The spinning thin-walled parts processing apparatus according to claim 6, characterized in that, When the part to be processed is fitted onto the outer tire assembly, the part to be processed has a tail top pressing end, and there is a tail top processing allowance between the tail top pressing end and the tail top.

8. The spinning thin-walled parts processing apparatus according to claim 4, characterized in that, The fixing plate assembly includes a fixing plate and fixing bolts, and the fixing plate is fixed to the inner tube assembly by the fixing bolts.

9. The spinning thin-walled parts processing apparatus according to claim 4, characterized in that, The fixing plate assembly is pressed onto one end of the part to be processed and does not extend beyond the inner wall of the part to be processed.

10. The spinning thin-walled parts processing apparatus according to claim 8, characterized in that, The fixing bolt is an M10 bolt.

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