CN213033657U - Machine adds aviation thin wall axle class turning clamping structure of integration - Google Patents
Machine adds aviation thin wall axle class turning clamping structure of integration Download PDFInfo
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- CN213033657U CN213033657U CN202020380840.6U CN202020380840U CN213033657U CN 213033657 U CN213033657 U CN 213033657U CN 202020380840 U CN202020380840 U CN 202020380840U CN 213033657 U CN213033657 U CN 213033657U
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Abstract
The invention relates to a structure, and provides a machining integrated aviation thin-wall shaft turning and clamping structure, which comprises: the device comprises a thin-wall shaft part (1), a floating pressing plate (2), a fitting clamp (4) and a machine tool chuck (5); an opening is formed in one side of the machine tool chuck (5), the fitting clamp (4) is embedded into the machine tool chuck (5) from the opening, the thin-wall shaft part (1) is placed in the fitting clamp (4), and the floating pressing plate (2) is used for pressing the thin-wall shaft part (1). The invention can eliminate the interval between the aviation thin-wall shaft part and the chuck in the machining process. Meanwhile, the part deformation generated in the machining process is reduced, and the thin-wall shaft part is not deformed in turning.
Description
Technical Field
The invention relates to a structure, in particular to a machining integrated clamping structure for turning aviation thin-wall shafts.
Background
With the development of scientific technology and industrial production, higher requirements are put on the machining precision and the surface quality of aviation products. High yield, high quality, low consumption, light weight and long service life, which are the basic goals pursued by the development of aircraft engines, and the basis for realizing the goals is the processing precision and quality. The thin-wall part (generally, the part with the ratio of the diameter to the wall thickness of more than 20 times) can reduce the number of parts, the space occupied by one thin-wall part is reduced by more than 70%, the service life is prolonged by about 1 time, the whole weight of the engine is reduced and the performance of the engine is improved by the application of the thin-wall part, and therefore the thin-wall part is widely applied to the field of aerospace. The thin-wall part has large deformation amount due to thin wall machining, the machining precision is difficult to guarantee, and a machining error of 30-60% is caused by clamping of the thin-wall part, so that the clamping machining of the thin-wall part clamp is an important link in the thin-wall part machining.
For clamping thin-wall shaft parts in the turning process, the outer diameter of the thin-wall part is generally clamped for processing. The influence of the clamping process on the machining deformation of the thin-wall part is reduced by improving the manufacturing and machining precision of the contact part of the clamp and the part. When the wall thickness of the thin-wall shaft part is smaller than 6mm, the clamping tooth top can generate great axial force on the thin-wall part, and the part is seriously deformed. The thin-wall shaft has a shaft neck, so that a part spoke plate part cannot be completely attached to a chuck, the part gap is enlarged by the rotation of a machine tool during machining, and the radial force generated by the gap causes further deformation in the part machining process.
Disclosure of Invention
The invention aims to provide a machining integrated aviation thin-wall shaft turning and clamping structure which can eliminate the interval between an aviation thin-wall shaft part and a chuck plate in the machining process. Meanwhile, the part deformation generated in the machining process is reduced, and the thin-wall shaft part is not deformed in turning.
The technical scheme of the invention is as follows:
the utility model provides an aviation thin wall axle class turning clamping structure of machine tooling integration, includes:
the device comprises a thin-wall shaft part 1, a floating pressing plate 2, a fitting clamp 4 and a machine tool chuck 5;
an opening is formed in one side of the machine tool chuck 5, the fitting clamp 4 is embedded into the machine tool chuck 5 from the opening, the thin-wall shaft part 1 is placed in the fitting clamp 4, and the floating pressing plate 2 is used for pressing the thin-wall shaft part 1.
The fitting clamp 4 is riveted with a gap of a machine chuck 5 through a fastening pin 3.
The floating pressing plate 2 penetrates through the fastening pin 3 to press the thin-wall shaft part 1 tightly.
The length of the pressing area of the floating pressure plate 2 can not be longer than the central position of the fastening pin 3 and the processing position of the thin-wall shaft part 1.
The wall thickness of the thin-wall shaft part 1 is less than 6 mm.
The ratio of the diameter to the wall thickness of the thin-wall shaft part 1 is more than 20 times.
The invention is arranged on the basis of the original turning and clamping, and carries out integral change, and the clamping stress points of the thin-wall shaft parts are converted. The original turning and clamping mode of the thin-wall shaft part is radial stress, the stress deformation of the thin-wall part is serious, the axial stress direction of the structure is changed into radial stress through the floating pressing plate, the outer diameter of the thin-wall part is not stressed, and the part deformation generated by the clamping force is eliminated. The fitting fixture is guaranteed to be tightly attached to the thin-wall part through three-dimensional configuration, meanwhile, the machine tool chuck is linked with the fitting fixture through the fastening pin, the fact that the part spoke plate part is completely attached to the chuck in the rotary machining process of the machine tool is guaranteed, no gap is generated during rotation of the machine tool during machining, radial force is eliminated, and turning machining of the thin-wall shaft part is not deformed.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, the clamping structure for aviation thin-wall shaft turning comprises a thin-wall shaft part 1, a floating pressing plate 2, a fastening pin 3, a fitting clamp 4 and a machine tool chuck 5, wherein the fitting clamp 4 is firstly processed through three-dimensional configuration, then the fitting clamp 4 and the machine tool chuck 5 are riveted through the fastening pin 3, the thin-wall shaft part 1 is placed in the fitting clamp 4, and the floating pressing plate 2 penetrates through the fastening pin 3 to compress the thin-wall shaft part 1. The length of the floating pressure plate 2 needs to be adjusted and matched, and the length of a pressing area of the floating pressure plate 2 cannot be longer than the central position of the fastening pin and the processing position of the thin-wall shaft part 1.
The invention is arranged on the basis of the original turning and clamping, and carries out integral change, and the clamping stress points of the thin-wall shaft parts are converted. The original turning and clamping mode of the thin-wall shaft part is radial stress, the stress deformation of the thin-wall part is serious, the axial stress direction of the structure is changed into radial stress through the floating pressing plate, the outer diameter of the thin-wall part is not stressed, and the part deformation generated by the clamping force is eliminated. The fitting fixture is guaranteed to be tightly attached to the thin-wall part through three-dimensional configuration, meanwhile, the machine tool chuck is linked with the fitting fixture through the fastening pin, the fact that the part spoke plate part is completely attached to the chuck in the rotary machining process of the machine tool is guaranteed, no gap is generated during rotation of the machine tool during machining, radial force is eliminated, and turning machining of the thin-wall shaft part is not deformed.
Claims (5)
1. The utility model provides an aviation thin wall axle class turning clamping structure of machine tooling integration which characterized in that includes:
the device comprises a thin-wall shaft part (1), a floating pressing plate (2), a fitting clamp (4) and a machine tool chuck (5);
an opening is formed in one side of the machine tool chuck (5), the fitting clamp (4) is embedded into the machine tool chuck (5) from the opening, the thin-wall shaft part (1) is placed in the fitting clamp (4), and the floating pressing plate (2) is used for pressing the thin-wall shaft part (1).
2. The machining integrated turning and clamping structure for the aviation thin-wall shafts as claimed in claim 1,
and riveting the gap between the fitting clamp (4) and the machine tool chuck (5) through a fastening pin (3).
3. The machining integrated turning and clamping structure for the aviation thin-wall shafts as claimed in claim 1,
the floating pressing plate (2) penetrates through the fastening pin (3) to press the thin-wall shaft part (1).
4. The mechanically integrated turning and clamping structure for the aviation thin-wall shafts as claimed in claim 1, wherein the wall thickness of the thin-wall shaft part (1) is less than 6 mm.
5. The mechanically integrated turning and clamping structure for the thin-wall shafts of the aviation as claimed in claim 4, wherein the ratio of the diameter to the wall thickness of the thin-wall shaft part (1) is more than 20 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020380840.6U CN213033657U (en) | 2020-03-20 | 2020-03-20 | Machine adds aviation thin wall axle class turning clamping structure of integration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020380840.6U CN213033657U (en) | 2020-03-20 | 2020-03-20 | Machine adds aviation thin wall axle class turning clamping structure of integration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213033657U true CN213033657U (en) | 2021-04-23 |
Family
ID=75519008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020380840.6U Active CN213033657U (en) | 2020-03-20 | 2020-03-20 | Machine adds aviation thin wall axle class turning clamping structure of integration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213033657U (en) |
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2020
- 2020-03-20 CN CN202020380840.6U patent/CN213033657U/en active Active
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