Efficient constant-pressure-difference intermittent rotation extrusion abrasive flow polishing method

An abrasive flow, extrusion grinding technology, applied in grinding/polishing equipment, surface polishing machine tools, grinding machines, etc., can solve the problems of less material removal, more material removal, loose abrasive particles, etc., to achieve high processing efficiency, improve The uniformity of grinding and polishing and the uniformity of the machined surface
CN104526531AActive Publication Date: 2015-04-22珂尔默(东莞)制造技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
珂尔默(东莞)制造技术有限公司
Publication Date
2015-04-22

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Abstract

The invention relates to an efficient constant-pressure-difference intermittent rotation extrusion abrasive flow polishing method and belongs to the technical field of automatic polishing of large-size complex-curved-surface type part intermittent rotation extrusion abrasive flows which are high in surface quality uniformity requirement. The method comprises that a gear is driven by a hydraulic motor to be meshed with a negative-clearance rotation disc bearing to perform rotation grinding polishing, seal rings are arranged at all connected faces to achieve high-pressure abrasive static seal, easily abrasive seal rings are arranged at the rotation friction positions special high-pressure abrasive seal rings and high-pressure abrasive seals are arranged at the piston abrasive extrusion positions to achieve high-pressure abrasive dynamic seal, and finally, high-pressure abrasive intermittent rotation grinding and polishing are achieved. The 'over-polishing' and 'rounding' phenomena of traditional abrasive flow extrusion are prevented, efficient precise uniform polishing of complex curved surfaces of impellers, blades and the like high in pneumatic performance and surface uniformity is achieved, and the surface roughness Ra of various complex parts can be reduced below 0.8.
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Description

technical field

[0001] The invention relates to a high-efficiency constant pressure difference intermittent rotary extrusion abrasive flow polishing method, which belongs to the technical field of automatic polishing of intermittent rotary extrusion abrasive flow for large-scale complex curved surface parts with high surface quality requirements. Background technique

[0002] Mechanical products with complex curved surfaces, such as aero-engine blisks, impellers, blades, thin-walled parts, pump valve bodies and elongated holes, need to be processed by ultra-finishing after grinding, milling, EDM or other special processing To achieve uniform, low roughness and smooth surface processing requirements on the surface of the workpiece to be processed. At present, enterprises mainly use whetstone or manual polishing process, while the traditional extrusion abrasive flow technology will produce "rounding" and "over-polishing", which greatly affects the uniformity of the product sur...

Claims

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