A flexible fixture and method for milling blades with large complex curved surfaces
A flexible fixture and complex curved surface technology, applied in the field of mechanical processing, can solve the problems of large processing deformation, difficult clamping of curved surface parts, and difficulty in guaranteeing the quality of the processed surface, so as to reduce processing deformation, reduce processing deformation, and suppress processing chatter vibration effect
Active Publication Date: 2018-11-30
SHANDONG UNIV
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[0011] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a flexible fixture for milling blades with large complex curved surfaces. A flexible clamping part is provided to reduce the processing deformation of thin-walled structures such as large blades, and reduce the processing time. chatter, and then solve the problems of large processing deformation and difficult to guarantee the quality of the processed surface caused by weak rigidity in the milling process of large thin-walled blades, as well as the problem of difficult clamping of curved surface parts
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[0041] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0042] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.
[0043] As introduced in the background technology, there is a problem of processing vibration during the process...
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A flexible clamp and a method for use in milling blades having large complex curved surfaces, comprising: a lower portion clamping portion (2) which is arranged on a workbench (1), wherein a flexible clamping portion is cooperatively arranged at an upper side of the lower portion clamping portion (2); two ends of the flexible clamping portion are connected to a horizontal moving mechanism, and an end portion of the horizontal moving mechanism is connected to a vertical moving mechanism; the flexible clamping portion comprises an elastic clamping body which flexibly adheres to a side wall of a blade, the elastic clamping body flexibly clamping an upper portion side wall of the blade, while the lower portion clamping portion (2) clamps a bottom portion of the blade; during processing, the horizontal moving mechanism and the vertical moving mechanism drive the elastic clamping body to adjust the position at which the blade is clamped so as to preserve an area to be processed. The present invention solves the problem of processing vibration during the processing of a thin-walled part having a complex curved surface, and may also reduce processing distortion of thin-walled structures, such as a large-sized blades.
Description
technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a flexible fixture and method for milling blades with large complex curved surfaces. Background technique [0002] At present, in the aerospace industry, the cutting task of thin-walled parts is very important, and the variable thickness and thinning processing of thin-walled parts has always been a difficult problem in processing and manufacturing. Thin-walled blades with complex curved surfaces in aerospace structures have large overhangs and poor rigidity, and the main processing method is five-axis milling. The difficult-to-machine structure and complex processing technology make the thin-walled structure prone to deformation, springback and other phenomena during processing. There are problems such as cutting tool and vibration, which lead to deformation of the workpiece and affect the dimensional accuracy of the workpiece, the quality of the cutting surface an...
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IPC IPC(8): B23Q3/06B23C3/18
CPCB23C3/18B23Q3/063B23Q3/066
Inventor 宋清华高建刘战强万熠史振宇
Owner SHANDONG UNIV
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