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US 4,433,600 AGranted
Workpiece locating device for a corner shear machine
AssigneeTakeda Machinery Works Company, Ltd.
InventorChihiro Ikeda
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AssigneeTakeda Machinery Works Company, Ltd.
InventorChihiro Ikeda
Estimating the term…
A new and unique workpiece locating device for a corner shear machine which serves for determining a required position prior to starting a shearing operation when it is to be conducted at a corner or on one side of a workpiece in the form of square or rectangular sheet material. The workpiece locating device includes a pair of symmetrically located grooves extending in a V-shaped form relative to a center line extending through the center of dies across a table and a pair of rotary stoppers displaceably mounted on said grooves so as to slide to and fro therealong. The workpiece abutment edge of the respective stoppers is adjustable within an extent of an angle of 45 degrees in both the rotational directions relative to a plane extending at a right angle to the cutting edge of the dies. Measuring scales for both corner shearing and side shearing are fixedly mounted on the table in the vicinity of the grooves and in parallel to the latter. Corner shearing is effected under a positional condition that the workpiece abutment edge of the respective stoppers is located at a right angle relative to the cutting edge of the dies, whereas side shearing is effected under a positional condition that the workpiece abutment edge of one of the stoppers is located at a position turned by an angle of 45 degrees in one direction from the former position, while the workpiece abutment edge of the other one of the stoppers is located at another position turned by an angle of 45 degrees in the opposite direction.
A workpiece locating device for a corner shear machine by which a V-shaped notch is sheared in a predetermined position at a corner or on one side of a workpiece in the form of a square or rectangular sheet material, wherein the device comprises a pair of grooves formed in parallel to the cutting edges of the dies fixedly secured onto a table and extending at a right angle relative to one another, said grooves extending symmetrically relative to the dies, a pair of corner shearing scales fixedly mounted on the table in the vicinity of the grooves and in parallel to the latter, said corner shearing scales including a number of calibrated lines extending at a right angle relative to the cutting edges of the dies and being arranged symmetrically relative to the dies, pairs of side shearing scales fixedly mounted on the table in the vicinity of the grooves and in parallel to the latter, said side shearing scales including a number of calibrated lines extending at a right angle relative to the cutting edges of the dies and being arranged symmetrically relative to the dies, and a pair of rotary stoppers mounted slidably along the grooves.
Dependencies are inferred from the claim text.