Hydraulic clamp with direct operated rotary clamping-member

Details Hydraulic clamp with direct operated rotary clamping-member Hydraulic clamp with direct operated rotary clamping-member

1990-12-14

1992-04-28

Watson, Robert C.

Work holders

With fluid means

Plural positioning means sequentially operated

B23Q 308

Patent

active

051080796

ABSTRACT:
In a hydraulic clamp with a direct operated rotary clamping-member, a clamping-member (6) is fixedly secured to the lower portion of a clamp rod (22) adapted to be actuated by a hydraulic cylinder (12). When the hydraulic cylinder (12) is actuated for clamping, the clamping-member (6) is upward straightly actuated and changed over to a clamping condition (C) after being rotated to a clamping preparation condition (B) from an unclamping condition (A), through a rotary actuation device (13) and the clamp rod (22). The clamp rod (22) is interlockingly connected to a rotary member (27) of the rotary actuation device (13) in the rotatably actuated and slidably lowered state with respect to the rotary member (27).

REFERENCES:
patent: 4560152 (1985-12-01), Miller
patent: 4620695 (1986-11-01), Vanistendael

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