ドリルふれまわり測定装置の試作

抄録

Several studies on wandering motion of drill have been conducted so far. However, the drilling operations in these earlier reports were carried out in the fixed workpiece, which wandering motion is under restricted condition, consequently there was a large difference between the actual wandering phenomenon and the measured result. Therefore, in this report, a new apparatus was designed to measure the wandering motion of drill. By using this apparatus, workpiece could be moved freely in a plane of right angle to drill by wandering motion of drill. Detecting the displacement of workpiece, the relationship between wandering behavior and point shape of drills were examined. From the experimental results, relationship between point shape of drill and wandering motion was clear, and it is confirmed that the apparatus developed here is available to detect the wandering behavior of drill at the beginning of cutting. Moreover, this apparatus is also useful to investigate the accuracy of drill.