An adjustable punch body assembly and method of adjusting a punch body assembly that includes a punch body that has a driver engagement end and an opposite cutting end, and a longitudinal inner bore the extends between the driver engagement and cutting ends. The driver engagement end includes a first adjustable engagement. A driver is configured to adjustably couple to the punch body. The driver includes a base that has a second adjustable engagement corresponding to the first adjustable engagement of the punch body to establish an axial position of the driver with respect to the punch body on a longitudinal axis thereof. A stem extends from the base for mating with a punch head. A locking mechanism is provided at the driver engagement end of the punch body for locking the axial position of the driver.

A die-pressing punch used for die-pressing a workpiece includes a punch guide, a punch body that is provided vertically movably and non-rotatable about its axial center with respect to the punch guide, a punch head screw-fitted with the punch head. The die-pressing punch further includes a roller unit that is provided inside the punch guide beneath the punch body vertically movably and has a rotatable roller protruding downward from a bottom face of the punch guide, and an urging member that is provided between the punch body and the roller unit and urges the roller unit downward. The die-pressing punch further includes a joint member that is jointed with the punch head non-rotatably about the axial center, and an operable member. The operable member switches the joint member between a rotatable state and a non-rotatable state about the axial center with respect to the punch guide.

A die-pressing punch used for die-pressing a workpiece includes a punch guide, a punch body that is provided vertically movably and non-rotatable about its axial center with respect to the punch guide, a punch head screw-fitted with the punch head. The die-pressing punch further includes a roller unit that is provided inside the punch guide beneath the punch body vertically movably and has a rotatable roller protruding downward from a bottom face of the punch guide, and an urging member that is provided between the punch body and the roller unit and urges the roller unit downward. The die-pressing punch further includes a joint member that is jointed with the punch head non-rotatably about the axial center, and an operable member. The operable member switches. joint member between a rotatable state and a non-rotatable state about the axial center with revect to the punch guide.

A punch die is provided and includes a punch body extending along an axial direction of the punch die and including a punch edge portion, a key, and a punch driver. The punch die also includes a punch guide configured to removably receive the punch body therein, the punch guide including an inner hollow that receives the punch body and a keyway that receives and guides the key. The punch die further includes a retainer collar detachably coupled to the punch guide and configured to permit the punch driver to pass therethrough and be movable along the axial direction. The punch guide includes a peripheral slot that intersects the keyway of the punch guide and the retainer collar includes a cylindrical projection and an engaging projection that is rotatable to engage the peripheral slot and to be releasably aligned with the keyway.

An adjustable punch body assembly and method of adjusting a punch body assembly that includes a punch body that has a driver engagement end and an opposite cutting end, and a longitudinal inner bore the extends between the driver engagement and cutting ends. The driver engagement end includes a first adjustable engagement. A driver is configured to adjustably couple to the punch body. The driver includes a base that has a second adjustable engagement corresponding to the first adjustable engagement of the punch body to establish an axial position of the driver with respect to the punch body on a longitudinal axis thereof. A stem extends from the base for mating with a punch head. A locking mechanism is provided at the driver engagement end of the punch body for locking the axial position of the driver.

A punch head assembly that includes a punch head including a main body having opposite first and second ends, a longitudinal inner bore, a first passageway extending substantially radially from the inner bore, and a second passageway substantially traversing the first passageway. A ball bearing is received in the first passageway. A pin member is received in the second passageway. The pin member is rotationally movable between first and second positions. A driver is coupled to the punch head and includes a stem extending into the inner bore. The stem has an outer ball engagement surface. The punch head is axially movable with respect to the stem. Axial movement of the pin member in the second passageway moves the ball bearing into and out of engagement with the outer ball engagement surface for adjusting an axial position of the punch head with respect to the driver.

A punching apparatus includes a punch holder and a punching tool. The punch holder includes a guiding body having a mounting cavity to slidably receive the punching tool and a driving assembly connected to the guiding body and provided with a beating element having first and second connecting ends coupled by a threaded coupling that enables a relative rotation for a linear movement of the punching tool with respect to the beating element. A stopping element has a first end fixed inside a connecting cavity in one of the connecting ends and arranged to receive the other connecting end and a second end inserted into a stopping cavity of the other connecting end and sliding inside the stopping cavity.

A punch die is provided. The punch die includes a punch body, a punch guide configured to removably receive the punch body therein, a retainer collar detachably coupled to the punch guide, a punch head mated to the punch body to regulate a position of the punch body, and a spring interposed between the punch head and the retainer collar. The punch guide includes a peripheral slot defined on the internal periphery of the punch guide such that the peripheral slot intersects a keyway of the punch guide. The retainer collar includes a cylindrical projection that extends into the inner periphery of the punch guide and an engaging projection defined on an outer periphery of the cylindrical projection. The engaging projection is rotatable to engage the peripheral slot and to be releasably aligned with the keyway.

A stud punch device is disclosed that can be configured to punch holes in metal studs that have been placed at various elevations in a structure. The disclosed stud punch can be configured to adjust its elevation so that the operator of the device can sand on a floor while punching the cut outs rather than having to climb a ladder or scaffolding to operate the device near the location of the hole(s) to be punched out by the stud punch device.

A tool system is provided that has a stamp or punch adapter including eccentrically positioned stamp receptacles. This system permits a simple exchange of tool inserts in the stamp adapter. These tool inserts are also usable in another tool system. The system also permits combining the stamp adapter with a stamp shaft, which can also be used in another tool system. These features permit stamping (and punching) with minimal tooling and retooling efforts.