Large-scale honeycomb ring spark-erosion grinding machining self-operated measuring device and use method thereof

Abstract

The invention relates to an automatic measuring device and an application method for large-scale honeycomb ring electric spark grinding, which belongs to the technical field of electric machining and application, the device comprises an electric spark grinding machine tool, a measuring shaft head, a glide rail, an AC servomotor and a length measuring device, wherein, the perceive probe measuring shaft head is vertically mounted on the left side of the beam of the electric spark grinding machine tool and is parallel to the electrode processing shaft head of the electric spark grinding machine tool, the AC servomotor is mounted and fixed at one end of a working rotary table close to the measuring shaft head, and the length measuring device and the perceive measuring probe are connected at the front end of the AC servomotor in sequence. The application method of the automatic measuring device is characterized in that workpieces are processed by adopting the processing electrode of the electric spark grinding machine tool, then the electrode processing shaft head of the electric spark grinding machine tool is hoisted, and the work pieces are measured through descending the measuring shaft head. The automatic measuring device and the application technical method thereof have the advantages that the processing and measurement of the work pieces are separately performed, and the automatic measurement is realized at the same time, the processing operation of the large-scale ring-shaped work pieces is simplified, the processing precision is high, the operation is safe and reliable,and the time and the labor are saved.

Description

technical field [0001] The invention belongs to the technical field of electrical machining applications, and in particular relates to an automatic measuring device and an application method for electrical spark grinding of large honeycomb rings. Background technique [0002] Ordinary EDM machine tools only have one spindle head for installing the processing electrode. After the workpiece is ground by the processing electrode, the micrometer rod is used for manual measurement. This measurement method increases with the increase of the diameter of the workpiece and the limitation of the measurement position. , The measurement error also increases, especially the concave honeycomb structure workpiece with a diameter of more than 2.5 meters. There is no precedent for EDM processing in China before, and the measurement method is a blank. Only automatic measurement can be considered, but if an automatic measurement device is installed on the spindle of the ordinary EDM machine to...

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Problems solved by technology

[0002] Ordinary EDM machine tools only have one spindle head for installing the processing electrode. After the workpiece is ground by the processing electrode, the micrometer rod is used for manual measurement. This measurement method increases with the increase of the diameter of the workpiece and the limitation of the measurement position. , the measurement error also increases, especially the concave honeycomb structure workpiece with a diameter of more than 2.5 meters. There is no precedent for EDM processing in China before, and the measurement method is a blank

Only automatic measurement can be considered, but if an automatic measurement device is installed on the spindle of the ordinary EDM machine tool where the processing electrode is installed, since the workpiece, electrode and measuring mechanism must be immersed in the processing fluid at the same time during processing, it is bound to be affected by the processing fluid and Inaccurate measurement due to double contamination of processed products

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