Adjustable punch head
AssigneeWilson Tool Company
InventorsKenneth J. Wilson, Ronald G. Rosene
Life of this patent
Estimating the term…
Abstract
A punch assembly having a punch head adjustably connected to a punch drive. By manipulation of this adjustment and by measuring only the length of the punch unit from the punch head to the tip of the punch tip, the operator may guarantee that when the punch unit is placed within a punch guide in a nonpunching position, the punch tip will be properly recessed within the punch guide.
Claims7
A punch assembly comprising a punch guide having an exterior spring support shoulder, a punch driver carried within the punch guide and moveable axially therein between upper and lower positions during a punching operation, a punch tip carried by the punch driver, a punch head attached to the punch driver and including a top and means defining constantly spaced upper and lower punch head flanges, a spring support ring bearing against the spring support shoulder and against the lower punch head flange when the punch driver with its attached punch head is in its upper position, and a compression spring seated at its upper end against the upper punch head flange and at its lower end against the support ring to render constant the spacing between the punch head top and the spring support shoulder of the punch guide when the punch driver is in its upper position.
A punch assembly comprising a punch guide having an exterior spring support shoulder, a punch driver axially moveable between upper and lower positions within the punch guide, a punch tip carried by the punch driver, a punch head attached to the punch driver and including a top and means defining constantly spaced upper and lower punch head flanges, a compression spring disposed exteriorly about the punch head and seated at its upper end against the upper flange of the punch head, a spring support ring operatively associated with the spring support shoulder and with the lower punch head flange when the punch driver is in its upper position and against which the compression spring seats, the axial length of the compression spring thus being rendered constant between the spring support ring and the upper punch head flange when the punch driver is in its upper position to thus render constant the normal spacing between the punch head top and the spring support shoulder of the punch guide when the punch driver is in its upper position.
A punch assembly comprising a punch guide having an exterior spring support shoulder, a punch driver axially slideable between upper and lower positions within the punch guide and having a threaded annular surface, a punch tip carried by the punch driver, means defining a punch head having a top and an annular threaded surface threadably engaging the annular threaded surface of the punch driver to enable axial adjustment of the punch driver with respect to the punch head, the punch head including means defining constantly spaced upper and lower flanges, a compression spring carried exteriorly about the punch head between the flanges and bearing upwardly against the upper flange, a spring support ring operatively associated with the spring support shoulder of the punch guide and with the lower flange of the punch head when the punch driver is in its upper position and against which the compression spring bears downwardly to render constant the normal spacing between the punch head top and the spring support shoulder of the punch guide when the punch driver is in its upper position, whereby the axial position of the punch tip within the punch guide may be varied by adjusting the axial position of the punch driver with respect to the punch head by means of their respective annular threaded surfaces.
Dependencies are inferred from the claim text.