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US 9,539,646 B2Granted
Self-synchronizing tap driver for rigid/synchronous tapping with adjustable tension and/or compression
AssigneeTapmatic Corporation
InventorsMark F. Johnson, Allan S. Johnson
Life of this patent
Estimating the term…
Abstract
Disclosed is a tap driver for rigid tapping, which includes adjustable tension and compression of the tap driver. In the preferred embodiment, the tap drive is adjustable by rotation of the outer collar between a plurality of settings, each of which provide a different tension or compression in the tap driver.
Claims16
A tap driver for rigid or synchronous tapping, comprising:
- (a) a tap driver spindle comprising:
- (i) a shank portion at a first end of the tap driver spindle, the shank portion configured to be secured to a tapping machine;
- (ii) a chuck portion at a second end of the tap driver spindle;
- (iii) a central body portion between the shank portion and the chuck portion, the central body portion having one or more inwardly biased force transmission components with an arcuate inward end which operatively asserts a defined biased force on the chuck portion, and at least one of an adjustable pre-set defined axial compression and an adjustable pre-set defined axial tension, wherein both of the adjustable pre-set defined axial compression and adjustable pre-set defined axial tension are imposed through a lateral force imparted on the one or more force transmission components.
1 more element
A tap driver for rigid or synchronous tapping, comprising:
- (a) a tap driver spindle comprising:
- (i) a shank portion at a first end of the tap driver spindle, the shank portion configured to be secured to a tapping machine;
- (ii) a chuck portion at a second end of the tap driver spindle;
- (iii) a central body portion between the shank portion and the chuck portion;
- (iv) one or more inwardly biased bearings and one or more tension rams each corresponding to one of the one or more bearings, each of the one or more bearings with an inward end which operatively asserts a defined biased force on the chuck portion and an outward end which abuts the one or more tension rams;
- (v) an outer sleeve rotatably mounted around at least part of the tap driver spindle configured to impart a force on one or more tension rams toward the one or more bearings;
- and
- (vi) wherein rotation of the outer sleeve imparts different forces on the tension rams, thereby resulting in an adjustable pre-set axial compression and an adjustable pre-set axial tension.
5 more elements
A tap driver for rigid or synchronous tapping, comprising:
- a tap driver spindle comprising:
- a shank portion at a first end of the tap driver spindle, the shank portion configured to be secured to a tapping machine;
- a chuck portion at a second end of the tap driver spindle;
- and
- a central body portion between the shank portion and the chuck portion, the central body portion having one or more inwardly biased radial tension rams with an arcuate inward end which operatively asserts a defined biased force on the chuck portion, and an adjustable pre-set axial tension through the one or more inwardly biased radial tension rams, wherein the adjustable pre-set axial tension is imposed through a lateral force imparted on the one or more inwardly biased radial tension rams.
2 more elements
A tap driver for rigid or synchronous tapping, comprising:
- a tap driver spindle comprising:
- a shank portion at a first end of the tap driver spindle, the shank portion configured to be secured to a tapping machine;
- a chuck portion at a second end of the tap driver spindle;
- and
- a central body portion between the shank portion and the chuck portion;
- and
- one or more rams, each imparting a pre-determined laterally inward force on a force transmission component which imposes a defined axially directed biased force on the chuck portion.
4 more elements
Dependencies are inferred from the claim text.