Through-flow turbine water guide mechanism internal and external ring coaxial processing equipment and processing method

Abstract

The invention discloses through-flow turbine water guide mechanism internal and external ring coaxial processing equipment and a processing method. The processing equipment comprises a base and a numerical control dividing disc, wherein a connecting plate and an oblique cylinder are arranged at the top of the numerical control dividing disc; one end of the connecting plate is hinged to the numerical control dividing disc; the other end of the connecting plate is connected with an output end of the oblique cylinder; a mounting disk is arranged on the connecting plate; and a numerical control knife rest is erected on the outer side of the base. The processing method comprises the following steps: a locking block is moved; an internal ring and an external ring of a water guide mechanism are fixed on the mounting disk; a jacking cylinder and the oblique cylinder act; a hole drilling knife of the numerical control knife rest and guide vane mounting holes of the to-be-processed internal ring and external ring are on the same horizontal plane; the hole drilling knife of the numerical control knife rest stretches out; the hole drilling knife rotates to realize one-time processing on the guide vane mounting holes of the internal ring and the external ring; the hole drilling knife retracts under the action of a feeding device and stops rotation; a sliding cylinder, the jacking cylinder and the oblique cylinder reset; and the internal ring and the external ring of the water guide mechanism are dismantled.

Description

technical field [0001] The invention relates to a processing device and a processing method thereof, in particular to a coaxial processing device and a processing method of the inner and outer rings of a water guiding mechanism of a tubular water turbine. Background technique [0002] Since there is a certain angle between the axis of the guide vane of the water guide mechanism of the tubular turbine and the axis of the unit, the shape of the guide vane is a curved surface in space, and the two ends of the guide vane cooperate with the inner and outer rings of the guide vane using spherical surfaces. Therefore, to ensure the guide vane of the water guide mechanism The leaves rotate flexibly, and the coaxiality of the guide vane installation holes of the inner ring and outer ring of the water guide mechanism is relatively high. In the past, the inner ring and the outer ring of the water guide mechanism were usually processed on an ordinary boring machine with cushion blocks a...

AI Technical Summary

Problems solved by technology

In the past, the inner ring and the outer ring of the water guide mechanism were usually processed on an ordinary boring machine with cushion blocks at a required angle. This processing method cannot guarantee the inner ring and the outer ring because the guide vane mounting holes of the inner ring and the outer ring are processed separately. The coaxiality of the guide vane installation holes of the ring and the outer ring is poor in machining accuracy, and it is limited to processing small-sized turbines, and the guide vane installation holes of the inner ring and outer ring of large turbines cannot be processed

[0003] For this reason, the Chinese utility model that existing publication number is CN201091930Y discloses " machine tool for oblique boring ", although this utility model has realized the coaxial machining of inner ring and outer ring, what this utility model is tilted is tool holder, knife Circuit equipment is installed on the frame, and the tool holder is in an inclined state, which has certain safety hazards. At the same time, the inclined tool holder is fixed differently. When the angle between the guide vane axis of the water guide mechanism of the tubular turbine and the unit axis At the same time, the original special machine tool for oblique boring cannot meet the requirements, resulting in that the utility model cannot adapt to the processing requirements of the inner ring and outer ring of the water guide mechanism of different specifications, and it is troublesome to replace the tool holder

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