Fully-automatic balancing weight reducing machine tool process and computing method thereof

Abstract

The invention discloses a fully-automatic balancing weight reducing machine tool process and a computing method thereof. In the process, a phi7 drill bit is used to reduce weight on an arc with a radius of 60 millimeter of a balance weight of a crankshaft, and the weight reducing range is that the angular range of the arc of the balance weight is within 80 degrees by taking the rotating center of the crankshaft as a reference, 5 holes are distributed uniformly, the drilling depth of five holes is 25 millimeters, 4 holes are uniformly distributed, the drilling depth of the four holes is 15 millimeters, and the 4 holes are among the 5 holes. In the invention, through improvement on the process, the maximum initial unbalance amount change allowed by the crankshaft is large. In a direction from 0 degree to 180 degrees, the maximum initial unbalance amount change is increased by 54.38 g.cm to 244.61g.cm from 190.23g.cm, namely 28.59 percent; and in a direction from 90 degrees to 270 degrees, the maximum initial unbalance amount change is increased by 17.31g.cm to 102.00g.cm from 84.69g.cm, namely 20.44 percent. According to on-site statistics after improvement, 97 percent of crankshafts can perform automatic balance on the machine tool, and the effect is obvious.

Description

technical field [0001] The invention relates to a process optimization of a full-automatic balancing and weight-removing machine tool, in particular to one. Background technique [0002] At present, the processing scheme of automatic balance and deweighting machine tools: use The drill bit is deweighted on the arc of the crankshaft balance weight with a radius of 60 mm (invariable technical requirements). The range of deduplication is based on the rotation center of the crankshaft. Requirements), there are 6 holes evenly distributed, and the drilling depth is 25mm (variable process plan), however, the weight removal effect of this method is poor, and the qualified rate of crankshaft dynamic balance is low. Contents of the invention [0003] The purpose of the present invention is to overcome the disadvantages of the above-mentioned technology, in order to increase the maximum allowable initial unbalance of the crankshaft, and ensure that the machine tool can automaticall...

AI Technical Summary

Problems solved by technology

[0002] At present, the processing scheme of automatic balance and deweighting machine tools: use The drill bit is deweighted on the arc of the crankshaft balance weight with a radius of 60 mm (invariable technical requirements). The range of deduplication is based on the rotation center of the crankshaft. Requirements), there are 6 holes evenly distributed, and the drilling depth is 25mm (variable process plan), however, the deduplication effect of this method is poor, and the qualified rate of crankshaft dynamic balance is low

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