Power tool
AssigneeMilwaukee Electric Tool Corporation
InventorsLuke Skinner, Kris Kanack, James Ballard, David Bauer
Life of this patent
Estimating the term…
Abstract
A power tool including a moveable piston, a motor capable of driving the moveable piston to perform work on a work piece, and a distance sensor configured to sense a movement of the moveable piston. The distance sensor operable to provide sensor information indicative of the movement of the piston. A controller receives the sensor information from the distance sensor. The controller operates the motor to perform work on the work piece based in part on the sensor information that the controller receives from the distance sensor.
Claims22
A power tool comprising:
- a moveable piston that is movable between a distal-most position and a proximal-most position, wherein the moveable piston is fully retracted in the proximal-most position;
- a motor capable of driving the moveable piston to perform work on a work piece,
- a distance sensor configured to sense a movement of the moveable piston, the distance sensor operable to provide sensor information indicative of the movement of the moveable piston;
- and
- a controller configured to receive the sensor information from the distance sensor,
- wherein the controller is configured to:
- operate the motor to perform work on the work piece based in part on the sensor information that the controller receives from the distance sensor, and
- after the work is performed on the work piece, use the sensor information to cause the moveable piston to partially retract to a partially-retracted position such that a stroke of the moveable piston starts from the partially-retracted position to perform work on a next work piece, and
- wherein the partially-retracted position is distal of the proximal-most position.
A power tool comprising:
- a moveable piston;
- a motor configured to cause a hydraulic fluid to be supplied to the moveable piston to perform work on a work piece,
- a distance sensor configured to sense a movement of the moveable piston, the distance sensor operable to provide sensor information indicative of the movement of the moveable piston;
- a pressure sensor configured to sense a pressure of the hydraulic fluid supplied to the moveable piston;
- and
- a controller configured to:
- receive the sensor information from the distance sensor and the pressure sensor,
- determine, based on the sensor information received from the pressure sensor, that the hydraulic fluid has achieved a threshold pressure at a point in time, wherein the threshold pressure is indicative that the piston is starting to exert a force on the work piece,
- determine, based on the sensor information received from the distance sensor for the point in time, an outer diameter of the work piece,
- determine, based on the determined outer diameter, at least one of a target distance or a target pressure, and
- operate the motor to perform work on the work piece based on the sensor information and the at least one of the target distance or the target pressure.
Dependencies are inferred from the claim text.