Patent ID: 6450074
Filing Date: 2002-09-17
Classification: B23Q,Y10T

Abstract:
An assembly for fastening the locating an added head of a numerical machine tool, said assembly comprising:an upper cylinder mount disposed in periphery of a main shaft of the numerical machine tool and provided with an urging portion and a pneumatic trough; a lower cylinder mount disposed in the periphery of the main shaft of the numerical machine tool and provided with a hydraulic trough and an urging portion opposite in location to said urging portion of said upper cylinder mount; a piston disposed between said upper cylinder mount and said lower cylinder mount and provided in a lower portion thereof with a retaining slot; an engagement block having two hooked portions, with one of said two hooked portions being retained in said retaining slot of said piston, and with other one of said two hooked portions being provided with a retaining portion, whereby said two hooked portions are provided with a spring; a hydraulic-pneumatic pipeline connected with said pneumatic trough of said upper cylinder mount and said hydraulic trough of said lower cylinder mount; and an added head having a retaining block, said retaining block provided with a protrusion corresponding in location to said retaining portion of said engagement block whereby said added head is adjustably fastened with the main shaft of the numerical machine tool such that said protrusion of said retaining block of said added head is engaged with said retaining portion of said hooked portion of said engagement block.