JPH0417027U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of a work clamp device with a clamp position switching mechanism, which is an embodiment of the present invention. FIG. 2 is a partially cutaway plan view of the device of FIG. 1. 3 is a cross-sectional view of a pallet in the apparatus of FIG. 1; FIG. FIG. 4 is a view from the left of the pallet in the apparatus of FIG. FIG. 5 is a view from the left of the switching device in FIG. FIG. 6 is a plan view showing another operating state of the clamp mechanism in FIG. 1. 10...Work, 12...Palette, 16...
Pallet body, 26... Clamp mechanism, 30...
Slide member, 38... Lock member, 40... Compression coil spring (lock spring), 42... Engaging member, 46... Engaged member, 50... Switching device, 58... Lifting cylinder (second drive means), 6
4... Push cylinder (first driving means), 66...
...Switching member, 76...Clamp arm, 80...
...Pin (single axis), 92...First link, 94...
Second link, 96...Third link, 98...Compression coil spring, 100...Connection portion, 104...
...Stopper bolt (refraction regulating means), 108...
Clamping contact member, 112...Unclamping contact member.

Claims (1)

[Claims for Utility Model Registration] (1) It has a pallet body that can clamp a workpiece by a clamp mechanism and move it along a predetermined conveyance path, and the pallet body is positioned at a predetermined clamp position switching station. The workpiece clamping device is capable of changing the clamping position with respect to the workpiece by moving the clamping mechanism in a straight line in a state, the workpiece clamping device being arranged on the pallet body so as to hold the clamping mechanism and movable in the straight line. a slide member that is disposed so as to be immovable relative to the slide member in the linear direction and movable relative to the slide member in a direction substantially perpendicular to the linear direction, and is always movable relative to the slide member by a lock spring; a locking member that is biased to move in a locking direction, which is one direction, and the sliding member being moved to a plurality of locking positions spaced apart in the linear direction;
The lock member is provided so as to be able to engage with the engaged member provided on the pallet body, and the lock member is moved in the locking direction according to the biasing force of the lock spring. an engaging member that is engaged with the member to position the slide member at any one of the plurality of lock positions; and a switching member disposed in the clamp position switching station, the switching member being disposed in the clamp position switching station and driven by the first driving means. By moving the switching member in a direction substantially perpendicular to the linear direction, the switching member is engaged with the slide member so as not to be relatively movable in the linear direction, and the locking member is moved in the direction opposite to the locking direction. direction to release the engagement between the engaging member and the engaged member, and the second driving means moves the switching member in the linear direction to move the slide member to another lock position. 1. A workpiece clamping device with a clamp position switching mechanism, characterized by having a switching device. (2) The clamp mechanism includes a clamp arm that is disposed on the slide member so as to be rotatable about an axis parallel to the linear direction, and that clamps the workpiece by being rotated in the clamping direction. a first link connected to the clamp arm so as to be relatively rotatable around an axis parallel to the one axis; a second link connected to the first link so as to be relatively rotatable around an axis parallel to the one axis; Disposed between the second link and the slide member, and presses the second link in a direction approaching the clamp arm so that the second link and the first link are bent at the connecting portion. a pressing means; restricting bending of the first link and the second link toward one side; applying a pressing force of the pressing means so that the clamp arm rotates in the clamping direction; and a refraction regulating means for clamping the workpiece, and the clamping station for clamping the workpiece is configured to adjust the clamping position by moving the long clamping abutment member in the linear direction in a direction substantially perpendicular to the linear direction. Regardless, a clamping means is provided for rotating the first link and the second link so that they are bent in the one direction, and the unclamping station for unclamping the work includes an unclamping unit that is long in the linear direction. unclamping means for rotating the first link and the second link so that they are bent toward the other regardless of the clamping position by moving the abutment member in a direction substantially perpendicular to the linear direction; A work clamp device with a clamp position switching mechanism according to claim (1).