Adaptive deformation-resistant supporting fixture

Abstract

The invention provides an adaptive deformation-resistant supporting fixture, and belongs to the technical field of manufacture of parts of aero-engines. A center support of the adaptive deformation-resistant supporting fixture is fixedly arranged in the center of a base; a center supporting plate is sleeved at the upper end of the center support; a thrust spring is arranged between the center supporting plate and the center support; a second center pressing plate is in contact fit with the center supporting plate, and a contact surface is an inclined surface; the second center pressing plate is connected with the center support through a first locking bolt; a second locking bolt is arranged on the center support and faces the second center pressing plate; a vertical lifting pin and a transverse lifting pin are arranged in the center support and at the second locking bolt; the transverse lifting pin corresponds to the inner wall of a sleeving section of the center supporting plate; a first center pressing plate is arranged above the second center pressing plate; a positioning ring is positioned on the base and on the outer side of the center support; one end of a peripheral pressing plate is positioned above the positioning ring; the other end of the peripheral pressing plate is matched with the base through a compression bolt; the peripheral pressing plate is provided with a rotating shaft; the rotating shaft is arranged on the base through a fixing block; and a supporting ring is arranged on the outer side of the positioning ring.

Description

technical field [0001] The invention belongs to the technical field of manufacturing aero-engine parts, in particular to an adaptive support anti-deformation fixture. Background technique [0002] Compressor disks, turbine disks and blisks are important components of aero-engines, and they are classified as weakly rigid disk parts. The relative stiffness and strength of these parts are relatively low, and the processing technology is poor, especially for the shape of parts. In the case of high requirements for bit error and dimensional error, the parts are very sensitive to vibration, cutting force and cutting temperature during processing. A little carelessness will deform the part, and it is difficult to guarantee the processing accuracy. [0003] In order to avoid the deformation of the parts during processing, the clamping and fixing of the parts is very important. At this stage, the auxiliary support of the adjustable screw with the head is generally used for the clampi...

AI Technical Summary

Problems solved by technology

[0002] Compressor disks, turbine disks and blisks are important components of aero-engines, and they are classified as weakly rigid disk parts. The relative stiffness and strength of these parts are relatively low, and the processing technology is poor, especially for the shape of parts. In the case of high requirements for bit error and dimensional error, the parts are very sensitive to vibration, cutting force and cutting temperature during processing. A little carelessness will deform the part, and it is difficult to guarantee the processing accuracy.

[0003] In order to avoid the deformation of the parts during processing, the clamping and fixing of the parts is very important. At this stage, the auxiliary support of the adjustable screw with the head is generally used for the clamping of the parts, or the use of the wedge for three-point support or six-point support, but When the above-mentioned traditional method is used to clamp and align the parts, the clamping force received by the parts is not uniform, resulting in that the degree of freedom of the parts cannot be completely limited during the clamping process, and the overall structural rigidity of the parts after clamping and positioning is still not enhanced. The clamping stability of the parts is not high, which eventually causes the parts to be affected by vibration, cutting force and cutting temperature during the processing process, resulting in deformation after processing, low processing accuracy and low production efficiency of the parts

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