Due to the bending and cross-section of the large-diameter round steel bar, when the central hole is drilled by the usual method, not only the center drill is easily damaged, but also the vibration of the center frame due to the jump of the bar material has a great influence on the precision of the machine tool. In the case of a large number of shaft types and small batch sizes, it is not suitable to purchase a dedicated center hole machine tool. In response to this problem, we designed and built a special device for the center hole of the bar drill. As shown below:
Assembly Parts Of Screw & Barrel
Screw And Barrel Parts,Accessories Of Screw Barrel,Injection Screw And Barrel Parts,Screw Barrel For Injection Machine
Zhoushan Jinmao Machinery Manufacturing Factory , https://www.jinmao-machinery.com