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A high-precision automatic polishing device

A high-precision, grinding and polishing technology, used in grinding/polishing equipment, control of workpiece feed motion, honing machine tools, etc., to achieve the effects of high grinding and polishing accuracy, easy adjustment, and fewer error sources

Active Publication Date: 2016-05-11
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Flatness is one of the shape and position errors that are easier to guarantee at present

Method used

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  • A high-precision automatic polishing device
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  • A high-precision automatic polishing device

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] Taking the grinding and polishing of measuring cone mandrel taper 1:15000 as an example, the specific implementation of the invention is described.

[0019] The oil stone guide rail 1 and the precision oil stone for grinding are ground through three planes to obtain higher plane precision. Check the flatness of the oilstone guide rail with a long flat crystal. The direction Moiré fringes on the length of the guide rail should be close to parallel and symmetrically distributed in the width direction. Regardless of the sag area, the coverage area of ​​two moiré fringes is not less than 50% of the total area of ​​the guide rail and one moiré fringe is about 0.29 μm.

[0020] Firstly, the center hole of the taper mandrel 4 to be processed is repaired to improve the precision of the rotary reference. Then pass the cone mandrel into the hole of the oilstone guide rail 1, and support the cone mandrel with a 60°elastic tip. Adjust the screw A21 on the bearing seat to make the...

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Abstract

A high-precision automatic polishing device comprises a tool driving system, a guide rail and adjusting system, a workpiece driving and adjusting system, an on-machine detecting system and a tool finishing system. According to the device, precise oilstone serves as a polishing tool, and precision finishing is conducted on the working surface of the oilstone through tri-plane mutual abrasion; an adjustable-speed motor drives the oilstone supported by an oilstone retaining rack elastically to conduct autorotation-free revolution on the guide rail working surface by means of a parallelogram mechanism with passive constraint; the guide rail working surface of the oilstone is adjusted to be aligned with the bus of a workpiece by means of a ball micrometer head; the bus, aligned with the guide rail surface, of the shaft workpiece is also subjected to precise machining while the guide rail surface of the oilstone is polished, and a driving workpiece rotates around a high-precision center hole to machine the shaft workpiece. By the adoption of the device, the precision reaches the submicron order, the number of error sources is small, automatic continuous micro-feeding is achieved, polishing precision is high, the guide rail flatness error, shaft part total run-out error and surface roughness can be reduced at the same time, and on-machine polishing and precise repair can be achieved.

Description

technical field [0001] The invention belongs to the technical field of precision machinery manufacturing, and relates to a high-precision automatic grinding and polishing device for reducing the flatness error of plane parts such as guide rails and the full run-out error and surface roughness of shaft parts, and can realize machine tool spindles, measuring mandrels, etc. On-machine grinding and polishing and precision repair functions of plane parts such as shaft parts and guide rails. Background technique [0002] Shaft parts and guide rails are the most common basic parts in mechanical parts. The main accuracy indicators for shaft parts include roundness, cylindricity, taper, circular runout, full runout, and surface roughness; the main accuracy indicators for guide rails include flatness and surface roughness. At present, precision-level cylindrical grinders can process shaft parts with a full jump machining error of 1-0.5 μm and planar parts with a flatness error of 1 μ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B33/00B24B33/10B24B49/00
CPCB24B33/00B24B33/10B24B49/00
Inventor 凌四营王立鼎娄志峰马勇李克洪
Owner DALIAN UNIV OF TECH
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