A high-speed abrasive flow rotary ultra-fine grinding device for large aspect ratio micro-shafts

Abstract

The invention discloses a high-speed abrasive particle flow rotating superfinishing device for a micro-shaft with a large length-to-diameter ratio, including a base, a protective cover, a feeding mechanism, a grinding mechanism, a discharging mechanism, a driving mechanism and a control system, and a discharging mechanism The unloading platform is movably connected with the base. The grinding mechanism is located on the unloading platform and is located between the feeding mechanism and the driving mechanism. It includes two planetary gear assemblies arranged one after the other. The planetary gear assembly includes a second sliding seat, a casing, a ring gear, a sun gear shaft and A plurality of planetary gear shafts, the bottom of the shell is slidingly matched with the guide rail, and the ring gear is arranged in the shell. Both the central gear shaft and the planetary gear shaft are open cavity structures at both ends, and the two sets of planetary gear shafts are respectively facing each other. The two central gear shafts are movably connected, and the rear central gear shaft is movably connected with the driving mechanism. The invention has high processing precision, saves time and effort, has a high degree of automation, improves production efficiency, and ensures the consistency of the surface processing quality of the micro-axis with a large length-to-diameter ratio.

Description

technical field [0001] The invention relates to the technical field of mechanical processing equipment, in particular to a high-speed abrasive particle flow rotary superfinishing device for a micro-shaft with a large length-to-diameter ratio. Background technique [0002] Grinding is generally used as the final processing procedure of mechanical parts, and its main purpose is to ensure the geometric accuracy and surface roughness requirements of the parts. The field of mechanical processing and production has gradually begun to develop in the direction of high-tech and high-precision refinement, and its demand for high-precision micro-shafts with large aspect ratios is increasing. [0003] Today's processing and production equipment is faced with many production problems in processing micro-shafts with large aspect ratios. The main reasons are that the precision of existing processing equipment is difficult to meet the required dimensional accuracy, and the second is that fo...

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Problems solved by technology

[0005] Aiming at the deficiencies of the above-mentioned prior art, the purpose of the present invention is to propose a high-speed abrasive flow rotary ultra-finishing device for micro-shafts with a large length-to-diameter ratio, so as to solve the problems of low processing accuracy, inconsistent surface quality, and automation in existing processing equipment. Low level, low production efficiency and high cost

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