Floating type oval-shaped supersonic vibration micro-engraving device

Abstract

The invention discloses a floating elliptical ultrasonic vibration micro-sculpture device, which comprises an installation table (11), a support unit, a driving unit (2), a sliding unit (3), a floating transduction component (4) and a longitudinal bending transducer (1); the support unit is composed of a support base (12), an A bracket (13) and a B bracket (14); the lower installing surface of the installation table (11) is respectively connected with the support base (12) and the A bracket (13); and the upper installing surface (11a) of the installation table (11) is connected with a numerical control table. The cutter of the sculpture device can produce elliptical ultrasonic vibration to realize micro-sculpturing under the drive of an ultrasonic transducer. The micro-sculpture device can ensure that the depth of a processed groove maintains constant through the floating transduction component; then the longitudinal bending transducer causes the cutter to produce ultrasonic elliptical vibration; the characteristics of ultrasonic elliptical vibration which can reduce the cutting force to improve the machining accuracy and reduce the surface roughness are utilized to ensure that the groove on the processed part surface has high geometric accuracy and surface quality without burrs on the edge thereof; and the unitized design of the longitudinal bending transducer and the driving unit remedies the defect that the cutter cannot rotate in the traditional planing process, thereby realizing free-adjusting sculpture process with multiple cutting directions.

Description

technical field [0001] The invention relates to a micro-engraving device, more particularly, a floating elliptical ultrasonic vibration micro-engraving device capable of processing microgrooves on complex curved surfaces. Background technique [0002] Processing tiny grooves with special structures on the surface can enable the surface to obtain some specific functions, such as drag reduction, stealth, frequency selection, etc. These functions can play an important role in aviation, aerospace and other industrial fields, and the surface of aerospace products is mostly Complex curved surface, which requires those special functional micro-grooves to be processed on complex curved surface. At present, the domestic and foreign methods of processing micro-grooves on complex curved surfaces mainly include micro-milling, micro-forging, laser engraving, etc. Micro-milling is easy to control the cross-sectional shape of micro-grooves, but the burrs are large during milling, the groo...

AI Technical Summary

Problems solved by technology

Micro-milling is easy to control the cross-sectional shape of micro-grooves, but the burrs are large during milling, the accuracy of groove width is low, and the cutting depth is easily affected by the positioning error of the machine tool; micro-forging processing has high forming efficiency and no burrs, but it needs to be manufactured first Out of the mold, it is not suitable for single-piece and small-batch production; the groove width of laser engraving has high precision, but the cross-sectional shape of the micro-groove is difficult to control

In summary, the original method of processing microgrooves on complex curved surfaces often has low precision and poor quality, and the cross-sectional shape is difficult to meet the design requirements. These problems directly limit the application research of special functional microgrooves on complex curved surfaces.

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