A portable, hand held hydraulic cutting tool having an in-line handle assembly and a working head assembly. The handle assembly has a tool frame portion and a neck portion. The working head assembly has a pair of jaw members joined so that they are movable relative to each other and held in place by a locking pin. Each jaw member has a cutting blade attached thereto. Each jaw member can be tapered and can include weight reducing pockets defined in respective sidewalls. Each jaw member includes a raised tab on an outside edge that mates with a respective tab notch in a yoke of the neck portion of the handle assembly. When the locking pin is in an extended position, the jaw members of the tool can separate and rotate away from one another until their respective locking tabs engage their respective locking tab opening, connecting the jaw members to the yoke of the neck portion of the handle assembly.

A power tool system includes a hydraulic power tool. The hydraulic power tool includes a hydraulic drive, a sensor, and a first electronic processor. The sensor is configured to detect an operational parameter of the hydraulic drive during an operation by the hydraulic drive. The first electronic processor is configured to store a plurality of data points based on the operational parameter detected during the operation and send the plurality of data points to an external device. The external device includes a display screen and a second electronic processor configured to receive the plurality of data points from the hydraulic power tool, control the display screen to display an expected data point for the operational parameter for the operation, and control the display screen to display an actual data curve based on the plurality of data points, the actual data curve overlaid on the expected data point.

A hydraulic actuator includes a switching part that is provided with an oil passage for sending pressurized oil generated by a hydraulic pump to a tool and returning return oil from the tool to the hydraulic pump. The switching part switches a route of at least one of the pressurized oil and the return oil. The switching part includes an operating portion (for example, an operation knob) and an axis portion (for example, a spool) that advances or retreats when the operating portion is turned. When the operating portion is turned, the axis portion advances or retreats in a direction orthogonal to a direction of turning the operating portion, whereby the route of the oil passage is switched.

A working head for a hydrodynamic cutting tool includes a working head, an electro-hydraulic pump adapted to increase the pressure of a hydraulic liquid, and a pressure tube connected between the pump and the working head to communicate the pressure of the hydraulic liquid from the pump to the working head. The working head may be removably connectable to the pressure tube and includes two jaws movable, in response to the increase of the hydraulic liquid pressure, between an open position and a closed position to perform the cutting. A cutting detector may be used to detect the completion of the cutting. A cutting confirmation transmitter may be connected to the cutting detector and configured for a wireless transmission of a cutting completion confirmation signal to a cutting confirmation receiver of the cutting tool.

A working head for a hydrodynamic cutting tool includes a working head, an electro-hydraulic pump adapted to increase the pressure of a hydraulic liquid, and a pressure tube connected between the pump and the working head to communicate the pressure of the hydraulic liquid from the pump to the working head. The working head may be removably connectable to the pressure tube and includes two jaws movable, in response to the increase of the hydraulic liquid pressure, between an open position and a closed position to perform the cutting. A cutting detector may be used to detect the completion of the cutting. A cutting confirmation transmitter may be connected to the cutting detector and configured for a wireless transmission of a cutting completion confirmation signal to a cutting confirmation receiver of the cutting tool.

A connected portion 68, 68m is disposed at an end of one of a rotary member 41 (first rotary shaft) of a tool unit 10 and a rotary shaft 62a (second rotary shaft) of a driving unit 60, and a connecting portion 52, 52m which is connected to the connected portion 68, 68m is disposed at an end of the other thereof. The connected portion 68, 68m has a guide shaft 68a which rotates integrally with the rotary member 41 or the rotary shaft 62a, and a plurality of engaged portions 68b, 68p disposed around the guide shaft 68a. The connecting portion 52, 52m has a guide hole 52a into which the guide shaft 68a is inserted, and the engaging portions 52b, 52q with which the engaged portions 68b, 68p are engaged and which are disposed around the guide hole 52a.

A hydraulically activated cutting tool with first and second pivoting jaws that can pivot around a shared pivot axis is provided. A blade is formed on the first pivoting jaw and a stop is formed on the second pivoting jaw. The blade has a cutting edge that runs in the direction of the pivot axis. A gripping section is formed on the second pivoting jaw and protrudes over a stop surface of the stop in the direction toward the first pivoting jaw. A method for separating an H-tap crimped connection of two cables with a cutting tool is also provided.

A hydraulically activated cutting tool with first and second pivoting jaws that can pivot around a shared pivot axis is provided. A blade is formed on the first pivoting jaw and a stop is formed on the second pivoting jaw. The blade has a cutting edge that runs in the direction of the pivot axis. A gripping section is formed on the second pivoting jaw and protrudes over a stop surface of the stop in the direction toward the first pivoting jaw. A method for separating an H-tap crimped connection of two cables with a cutting tool is also provided.

The present invention relates to a hydraulic tool including a working unit, a driving unit, a connection unit, and a switching device. The working unit is adapted to operate a workpiece. The driving unit is configured to drive the working unit and comprises a housing and a movable part provided in the housing and movable between an initial position and an end position. The connection unit connects the working unit and the driving unit. The switching device can rotate between a first position and a second position. When the switching device is in the first position, the movable part of the driving unit has a first stroke from the initial position to the end position; when the switching device is in the second position, the movable part of the driving unit has a second stroke smaller than the first stroke.

A power tool system includes a hydraulic power tool. The hydraulic power tool includes a hydraulic drive, a sensor, and a first electronic processor. The sensor is configured to detect an operational parameter of the hydraulic drive during an operation by the hydraulic drive. The first electronic processor is configured to store a plurality of data points based on the operational parameter detected during the operation and send the plurality of data points to an external device. The external device includes a display screen and a second electronic processor configured to receive the plurality of data points from the hydraulic power tool, control the display screen to display an expected data point for the operational parameter for the operation, and control the display screen to display an actual data curve based on the plurality of data points, the actual data curve overlaid on the expected data point.