The device (1) for clamping workpieces on machine tools comprises: a basic body (2); gripping means (7) associated with the basic body (2) and movable between a clamping configuration and a release configuration; a movement unit (8) which is associated with the basic body (2) and is adapted to move the gripping means (7) between the clamping configuration and the release configuration, comprising: a first slider (9a); a first clamping piston (11a) associated with the first slider (9a); a first release piston (12a) associated with the first slider (9a); a second slider (9b); a second clamping piston (11b) associated with the second slider (9b); a second release piston (12b) associated with the second slider (9b); and a friction compensation assembly (30, 31) associated with the clamping pistons (11a, 11b).

This document discloses an improved fluid-pressure rotary actuator. The described rotary actuator is especially useful for opening and closing milling machine vises, or fixtures, in a power-dense configuration. In this way, the described rotary actuator delivers a high actuation torque and infinite rotation, which is especially useful for programmable opening and closing of milling machine vises over a wide travel range.

This document discloses an improved fluid-pressure rotary actuator. The described rotary actuator is especially useful for opening and closing milling machine vises, or fixtures, in a power-dense configuration. In this way, the described rotary actuator delivers a high actuation torque and infinite rotation, which is especially useful for programmable opening and closing of milling machine vises over a wide travel range.

A semi-automatic grip assembly device, especially for assembling golf club grips, comprises: a machine platform; a first clamping mechanism fixed at the first end of the machine platform, which clamps the head of the golf club, to fix the club head at a predetermined position; a second clamping mechanism fixed at the middle of the machine platform; a first moving platform fixed at the second end of the machine platform opposite to the first end; a second moving platform, which is arranged on the first moving platform; wherein, a handle expansion mechanism is also provided on the second moving platform, which moves in the transverse direction to align with the opening of the grip, and moves in the longitudinal direction along with the second moving platform to be inserted into the opening of the grip and open the opening.

A semi-automatic grip assembly device, especially for assembling golf club grips, comprises: a machine platform; a first clamping mechanism fixed at the first end of the machine platform, which clamps the head of the golf club, to fix the club head at a predetermined position; a second clamping mechanism fixed at the middle of the machine platform; a first moving platform fixed at the second end of the machine platform opposite to the first end; a second moving platform, which is arranged on the first moving platform; wherein, a handle expansion mechanism is also provided on the second moving platform, which moves in the transverse direction to align with the opening of the grip, and moves in the longitudinal direction along with the second moving platform to be inserted into the opening of the grip and open the opening.

Disclosed are vise embodiments designed to lower manufacturing cost and work well in an automated CNC milling production environment. The disclosed embodiments include rigid vises having high clamp force and low internal friction. The embodiments include features for resisting the ingress of metal chips into sensitive moving parts through the use of commonly available seals and the flow of CNC coolant to flush metal chips away from the vise.

Disclosed are vise embodiments designed to lower manufacturing cost and work well in an automated CNC milling production environment. The disclosed embodiments include rigid vises having high clamp force and low internal friction. The embodiments include features for resisting the ingress of metal chips into sensitive moving parts through the use of commonly available seals and the flow of CNC coolant to flush metal chips away from the vise.

A power vise including a body and a jaw connected to and extending from the vise body. The vise can also include an actuator extending at least partially through the jaw body, where the actuator can include a first end and a second end opposite the first end. The vise can include a moving jaw connected to the first end of the actuator. The vise can include a motor connected to the second end of the actuator, where the motor can be operable to move the actuator to move the moving jaw with respect to the fixed jaw, including a hammering or impacting function, and that such hammering or impacting can be performed after a predetermined delay. The vise can include a sensor configured to produce a signal based on a condition of the vise and to control the vise at least in part on using that signal.

A power vise including a body and a jaw connected to and extending from the vise body. The vise can also include an actuator extending at least partially through the jaw body, where the actuator can include a first end and a second end opposite the first end. The vise can include a moving jaw connected to the first end of the actuator. The vise can include a motor connected to the second end of the actuator, where the motor can be operable to move the actuator to move the moving jaw with respect to the fixed jaw, including a hammering or impacting function, and that such hammering or impacting can be performed after a predetermined delay. The vise can include a sensor configured to produce a signal based on a condition of the vise and to control the vise at least in part on using that signal.