초록 ▼

A working apparatus for working a crankshaft having a journal portion and a crank pin includes first and second follow-up mechanisms. The first follow-up mechanism has first and second support members for rotatably clamping the journal portions therebetween. The second support member is moved in rel

A working apparatus for working a crankshaft having a journal portion and a crank pin includes first and second follow-up mechanisms. The first follow-up mechanism has first and second support members for rotatably clamping the journal portions therebetween. The second support member is moved in relation to the first support member by a first actuator. The second follow-up mechanism has third and fourth support members for rotatably clamping the crank pin therebetween. The fourth support member is moved in relation to the third support member by a second actuator. A first fillet roller is provided at the first support member and pressed against the journal portion, to roll thereon, and a second fillet roller is provided at the third support member and pressed against the crank pin, to roll thereon. The pressure contact of the first and second fillet rollers, with respect to the journal portion and the crank pin, is detected by detecting the displacement of the first and second actuators, respectively, and is controlled by actuating the actuators in response to the detecting signal.

대표청구항 ▼

A working apparatus for working a crankshaft having a journal portion and a crank pin, comprising: a first follow-up mechanism comprising first and second support members for clamping the journal portion therebetween so as to be rotatable, the second support member being arranged so as to be movable

A working apparatus for working a crankshaft having a journal portion and a crank pin, comprising: a first follow-up mechanism comprising first and second support members for clamping the journal portion therebetween so as to be rotatable, the second support member being arranged so as to be movable in relation to the first support member; a second follow-up mechanism comprising third and fourth support members for clamping the crank pin therebetween in order to be rotatable, the fourth support member being arranged so as to be movable in relation to the third support member; a first actuator provided between the first and second support members and comprising a movable member, for controlling the position of the second support member relative to the first support member; a second actuator provided between the third and fourth support members and comprising a movable member, for controlling the position of the fourth support member relative to the third support member; a first fillet roller provided on the first support member and pressed against the journal portion, to roll on a peripheral surface of the journal portion; a second fillet roller provided on the third support member and pressed against the crank pin, to roll on a peripheral surface of the crank pin; a drive mechanism for rotating the second follow-up mechanism, to rotate the crankshaft; detecting means for detecting the displacement of the movable members, to thereby determine the change in the displacement of the first fillet roller with respect to the journal portion, and also the change in the displacement of the second fillet roller with respect to the crank pin; and a control device for actuating the first and second actuator in response to a signal from the detecting means so as to control the pressure contact of the first and second fillet rollers.