Stretchable boring head

A stretchable boring head comprises a tool bit shell, a worm gear, a worm, a transmission tool bit and a flay key. The worm is arranged in the tool bit shell, the transmission tool bit is arranged above the worm in the tool bit shell and screwed by the external thread into the screwed hole of the up...

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Bibliographic Details
Main Authors CHEN XIANGYANG, GUO YU, GAO XINGPING, WANG BO
Format Patent
LanguageChinese
English
Published 12.05.2010
Subjects
BORING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
TRANSPORTING
TURNING
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Summary:A stretchable boring head comprises a tool bit shell, a worm gear, a worm, a transmission tool bit and a flay key. The worm is arranged in the tool bit shell, the transmission tool bit is arranged above the worm in the tool bit shell and screwed by the external thread into the screwed hole of the upper part of the worm, a key holding chamber is arranged on one side of the tool bit shell close to the transmission tool bit, one side of the flat key is mounted in the key holding chamber and the other side is connected with a flat key groove on the transmission tool bit, the transmission tool bit can stretch and slide only up and down along the flat key, the key holding chamber is provided with a locking screw for locking the transmission tool bit which is propped against the flat key, the tool is arranged in a tool holding groove of the transmission tool bit, the tool holding groove is provided with bolts supporting the tool and round nuts screwed on the bolt, and the tool is fixed on the transmission tool bit b
Bibliography:Application Number: CN20091219753