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US 10,328,479 B2Granted
Punch assembly with replaceable punch tip secured by coupling pin
AssigneeMate Precision Tooling, Inc.
InventorBruce Thielges
Life of this patent
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Abstract
A punch assembly includes a punch body having an axis and a replaceable punch tip configured for a punching operation, e.g., in a punch press apparatus. A laterally manipulated coupling pin is provided to selectively engage the punch tip with the punch body along the axis, and to selective disengage the punch tip from the punch body.
Claims26
A method for operating a punch assembly comprising a punch body configured for a punching operation in a punch press, the method comprising:
- engaging a removable, unitary punch tip with the punch body having an axial cavity defined along an axis thereof, the punch tip extending from a first end portion configured for the punching operation in combination with the punch body to a second end portion comprising a punch tip stem configured for selective engagement within the axial cavity in the punch body;
- manipulating a coupling pin disposed transverse to the axis of the punch body into a first position in which the coupling pin engages a stem on the punch tip or punch body, the coupling pin comprising a first end, a second end, and a middle portion between the first and second ends, wherein first and second openings in the punch body are configured for selective engagement and disengagement with the first and second ends of the coupling pin, wherein a lateral cavity in the punch tip stem is configured for selective engagement and disengagement with the middle portion of the coupling pin, and wherein the coupling pin is disposed within an outer diameter of the punch body, in the first position;
- manipulating the coupling pin transverse to the axis into a second position in which the coupling pin is disengaged from the stem, wherein the first end of the coupling pin is configured for manipulation of the coupling pin transverse to the axis of the punch body to selectively engage and disengage the punch tip stem and at least a portion of the coupling pin is disposed outside the outer diameter, in the second position;
- and
- disengaging the punch tip from the punch body along the axis.
2 more elements
A punch assembly comprising:
- a punch body configured for a punching operation in a punch press, the punch body having an axial cavity defined along an axis;
- a removable, unitary punch tip extending from a first end portion configured for the punching operation to a second end portion comprising a punch tip stem configured for selective engagement within the axial cavity in the punch body;
- a coupling pin disposed transverse to the axis of the punch body, the coupling pin comprising a first end, a second end, and a middle portion between the first and second ends;
- first and second openings in the punch body configured for selective engagement and disengagement with the first and second ends of the coupling pin;
- and
- a lateral cavity in the punch tip stem configured for selective engagement and disengagement with the middle portion of the coupling pin,
- wherein the first end of the coupling pin is configured for manipulation of the coupling pin transverse to the axis of the punch body to selectively engage and disengage the punch tip stem.
4 more elements
A punch system comprising:
- a punch assembly comprising:
- a punch body configured for a punching operation in a punch press, the punch body having an axis and an axial cavity defined along the axis;
- a removable, unitary punch tip extending from a first end portion configured for the punching operation to a second end portion comprising a punch tip stem configured for selective engagement and disengagement within the axial cavity in the punch body, along the axis;
- a coupling pin disposed transverse to the axis of the punch body, the coupling pin comprising a first end, a second end, and a middle portion between the first and second ends;
- first and second openings in the punch body configured for selective engagement and disengagement with the first and second ends of the coupling pin;
- and
- a lateral cavity in the punch tip stem configured for selective engagement and disengagement with the middle portion of the coupling pin;
- wherein the first end of the coupling pin is configured for manipulation of the coupling pin transverse to the axis of the punch body to selectively engage and disengage the punch tip stem, the first and second ends being configured for manipulation of the coupling pin transverse to the axis of the punch body to selectively engage and disengage the middle portion with the punch body and the punch tip;
- and
- wherein the coupling pin has a first position in which the punch tip and punch body are engaged with the first and second ends of the coupling pin disposed within an outer diameter thereof, and a second position in which the punch tip and punch body are disengaged with at least one of the first and second ends of the coupling pin disposed outside the outer diameter.
7 more elements
Dependencies are inferred from the claim text.