Digit controlled constant force feeding ultrasonic plug extruder

Abstract

The invention discloses a digital-control constant-force feeding ultrasonic pusher. The invention has an ultrasonic pusher, a dynamic strain gage, an A / D converter, and a computer while they are connected. Wherein, the ultrasonic pusher has a servo-motor, a coupler, a ball lead-screw, a lead-screw sliding end, first muffle, a coupling sheath, a pressure sensor, first sheath pin, second muffle, second sheath pin, the cover of energy converter, a piezoelectricity energy converter, a variable-amplitude rod, and a throw-out knife, while they are connected. Wherein, the piezoelectricity energy converter is connected to the ultrasonic wave generator, and the coupling sheath is connected to the guide sheath and guide axle.

Description

technical field [0001] The invention relates to a pushing machine, in particular to a numerically controlled constant force feeding ultrasonic pushing machine. Background technique [0002] With the rapid development of science and technology and industrial production, the precision machining requirements for round holes and special-shaped holes are getting higher and higher. For example Φ16 0 +0.05 1. Deep hole processing (material H62) with aspect ratio 1:16 requires surface roughness Ra0.8μm; surface roughness Ra<0.32μm for a square hole with a cross-sectional size of 72×34mm; certain parts are 200-1000mm long, The inner diameter is Φ70~Φ244mm, the wall thickness is 2~4mm, the dimensional accuracy of the inner diameter is ±0.05mm and ±0.1mm respectively, and the surface roughness Ra value is required to be 0.2μm. There are following problems in traditional processing methods: [0003] (1) The processing efficiency is extremely low. At present, the method of file c...

AI Technical Summary

Problems solved by technology

At present, the method of file correction and manual polishing is mainly used to finish the inner hole of the part, or the drawn brass tube is used for processing. When the inner hole is bored, a margin of about 0.1mm is left, which is manually polished with emery cloth. , the polishing time for a single piece is 20-30 hours, and the surface roughness Ra can only reach 2.5μm, which cannot meet the product design requirements

At present, factories and research institutes have to reduce the machining accuracy and surface roughness requirements of parts, thus affecting product performance

[0004] (2) The labor intensity of workers is high

[0005] (3) The processing quality does not meet the requirements

[0006] (4) High production cost

[0007] (5) Large cutting force

[0008] (6) High cutting temperature

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