Apparatus and method for checking inclination of cushion pad
AssigneeAida Engineering, Ltd.
InventorsTadahiro Kondo, Junji Makabe
Life of this patent
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Abstract
An apparatus for checking an inclination of a cushion pad includes: a plurality of height position detectors that detect a plurality of respective height positions in a vertical direction at a plurality of positions different in a horizontal direction of the cushion pad; an inclination measurement unit that measures information on an inclination of the cushion pad in accordance with the plurality of height positions detected by the plurality of respective height position detectors; and an input/output unit that outputs the information on an inclination of the cushion pad measured by the inclination measurement unit to a display or a printer in a visible manner.
Claims12
An apparatus for checking an inclination of a cushion pad in a die cushion device including a cushion pad lifting and lowering mechanism that supports the cushion pad and generates die cushion force when a slide of a press machine is lowered, the apparatus comprising:
- a plurality of height position detectors that detect a plurality of respective height positions in a vertical direction at a plurality of positions different in a horizontal direction of the cushion pad;
- a controller that measures information on the inclination of the cushion pad, where the measured inclination includes inclination caused by shim adjustment, in accordance with the plurality of height positions detected by the plurality of respective height position detectors;
- and
- an output that outputs the information on the inclination of the cushion pad measured by the controller in a visible manner,
- wherein the plurality of height position detectors detect the plurality of respective height positions in a state where an upper die attached to the slide and a blank holder coupled to the cushion pad through a plurality of cushion pins are in close contact with each other,
- wherein a shim is inserted into a shim adjustment position, and the shim adjustment position is located in the blank holder coupled to the cushion pad through the plurality of cushion pins,
- wherein the controller calculates a limit value of an amount of shim adjustment at the shim adjustment position in accordance with the measured information on the inclination of the cushion pad and an allowable range of the information on the inclination of the cushion pad, and
- wherein the output outputs the limit value of the amount of shim adjustment at the shim adjustment position, calculated by the controller, in a visible manner.
A method for checking an inclination of a cushion pad used in a die cushion device including a cushion pad lifting and lowering mechanism that supports the cushion pad and generates die cushion force when a slide of a press machine is lowered, the method comprising the steps of:
- detecting, by a plurality of height position detectors, a plurality of respective height positions in a vertical direction at a plurality of positions different in a horizontal direction of the cushion pad;
- measuring, by a controller, information on the inclination of the cushion pad, where the measured inclination includes inclination caused by shim adjustment, in accordance with the plurality of height positions detected;
- and
- outputting, by an output, the information on the inclination of the cushion pad measured in a visible manner,
- wherein the plurality of height position detectors detect the plurality of respective height positions in a state where an upper die attached to the slide and a blank holder coupled to the cushion pad through a plurality of cushion pins are in close contact with each other,
- wherein a shim is inserted into a shim adjustment position, and the shim adjustment position is located in the blank holder coupled to the cushion pad through the plurality of cushion pins,
- wherein the method further comprises a step of calculating, by the controller, a limit value of an amount of shim adjustment at the shim adjustment position in accordance with the information on the inclination of the cushion pad measured by the controller and an allowable range of the information on the inclination of the cushion pad, and
- wherein the output outputs the limit value of the amount of shim adjustment at the shim adjustment position, calculated by the controller, in a visible manner.
Dependencies are inferred from the claim text.