Abstract: The present disclosure relates to a method of a device for determining a tightening class of a tightening operation performed by a tightening tool. The determination is based on training a machine-learning model with an acquired set of observed torque and angle values, at least one set of context data and one or more associated tightening classes. Subsequently, the trained model is utilized for determining from supplied torque and angle values, as well as context data, one or more tightening classes associated with the supplied values and context data.

Abstract: Provided is a cylinder connection assembly comprising a ventilation connection sleeve sleeved on a piston shaft of the cylinder, the ventilation connection sleeve fixedly provided in a cylinder barrel of the cylinder and separates an inner cavity of the cylinder barrel to form front and rear air chambers, a first ventilation hole communicating with the front air chamber and a second ventilation hole communicating with the rear air chamber are provided on the ventilation connection sleeve, so that when the compressed gas is filled into the front air chamber through the first ventilation hole, or the compressed gas is filled into the rear air chamber through the second ventilation hole, the piston assembly in the cylinder barrel can move axially. Through the ventilation connection sleeve provided in the cylinder barrel, the compressed gas can directly enter the front air chamber or the rear air chamber through the ventilation hole thereon.

Abstract: There is provided an electrolytic tank assembly facilitating alignment and levelling of an electrolytic tank with respect to adjacent electrolytic tank. A levelling assembly can include a plurality of adjustable levelling mechanisms being independently actuable to cause upward or downward movement of the electrolytic tank. A sole assembly can include friction and sliding soles for controlling transversal movement of an electrolytic tank with respect to support beams onto which the tank is supported. A strap assembly comprising a vertically extending strap and a connector provided at an end of the vertically extending strap can be connected to each adjustable levelling mechanism of the levelling assembly. Various type of connectors can be provided at the other end of the strap to provide anchorage to accessory for operation, lifting, maintenance, etc.

Abstract: The present specification relates to a hand held power tool comprising a housing, the housing comprising a back handle portion at a back end thereof. And a front handle portion at a front end thereof, wherein a motor is arranged in the back handle portion and coupled to an outgoing axle extending through the front handle portion. Wherein the front handle portion comprises an inner tubular structure and an outer tubular gripping sleeve. The outer tubular gripping sleeve is circumferentially supported by at least two vibration absorbing resilient elements arranged around the inner tubular structure, such that a circumferential gap is formed between the inner tubular structure and the outer tubular gripping sleeve.

Abstract: A vacuum deaerator is provided with a refining device with which it is possible to suppress the occurrence of situations involving interrupted discharging and continuously discharge a material being treated that is highly viscous, etc. The vacuum deaerator introduces a liquid material being treated into a vessel having a vacuum therein to perform deaeration and then discharged the material being treated out of the vessel. A rotating rotor with refining device arranged in the vessel and a rotating discharge vane provided separately from the rotating rotor for the purpose of discharging the material being treated in the vessel out of the vessel are installed.

Abstract: The present disclosure relates to a method of detecting an indication of a tightening tool deteriorating in tightening performance, and a control device performing the method. In a first aspect, a method of detecting an indication of a tightening tool deteriorating in tightening performance is provided. The method comprises acquiring at least one set of observed values of a torque having been applied by the tightening tool to an object to be tightened over a first time period, determining whether or not an overshoot metric of the observed values in the at least one acquired set with respect to a target torque exceeds a predetermined overshoot threshold value, and if so providing an alert that an indication of performance deterioration of the tightening tool has been detected.

Abstract: The present specification relates to an impulse tool comprising a motor, an output shaft, and a hydraulic pulse unit including an inertia drive member connected to the motor and rotatable about a rotation axis, an oil chamber enclosed in the inertia drive member and an impulse generating means arranged to transfer intermittently kinetic energy to the output shaft, wherein the inertia drive member further comprises an end piece having a transverse wall, the impulse tool further comprising a disc shaped element arranged to at least partly delimit a receiving space in fluid communication with the oil chamber, formed between the disc shaped element and the transverse wall and a compressible insert arranged in fluidic communication with the receiving space, wherein the compressible insert comprises a foam body comprising a closed cell foam, and wherein the compressible insert is arranged in an insert space formed in the end piece.

Abstract: An arrangement for a power tool, the arrangement comprising a base structure; a drive member rotatable from a neutral position; a stopping device comprising a movable element and a limiting element; wherein the stopping device is arranged to adopt a first state where the stopping device allows rotation of the drive member in a first direction and generates a first counter torque; wherein the stopping device is arranged to adopt a second state where the stopping device allows rotation of the drive member in a second direction and provides a second counter torque; and wherein the stopping device is deflectable to switch from the first state to the second state by rotating the drive member in the second direction from the neutral position with a second switching torque overcoming the first counter torque.

Abstract: A system comprising: an industrial robot comprising a robot arm end portion and a power supply circuit arranged to supply current to the robot arm end portion, and an end effector comprising a power tool and an accumulator module (such as a battery) arranged to power operation of the power tool, the end effector being attached to the robot arm end portion, the end effector further comprising a charger arranged to draw current from the power supply circuit at the robot arm end portion and to supply charging current to the accumulator module. Charging of the accumulator module for the power tool is facilitated and the efficiency of the manufacturing process is increased.

Abstract: An arrangement for a power tool comprising a drive part for rotational locking to a drive shaft with respect to a rotation axis; a base part for fixation to a base structure; and an output element having an indexing part and a driven part rotatable relative to the indexing part about the rotation axis; wherein the output element is movable along the rotation axis relative to the drive part and the base part from a locked position where the indexing part engages the base part and the driven part engages the drive part, to an intermediate position where indexing part engages the base part and the driven part is disengaged from the drive part, and further to an unlocked position where the indexing part is disengaged from the base part and the driven part is disengaged from the drive part.

Abstract: A coupling arrangement for a tool, the coupling arrangement comprising a drive part rotatable about a rotation axis, the drive part comprising a drive profile; a driven part rotatable about the rotation axis, the driven part comprising a driven profile complementary to the drive profile, the driven profile being arranged to mate with the drive profile in a coupled position for torque transfer between the drive part and the driven part; and an aligning arrangement arranged to force a relative rotation between the drive part and the driven part about the rotation axis from a nonaligned state of the coupling arrangement, where the drive profile is not rotationally aligned with the driven profile, towards an aligned state of the coupling arrangement, where the drive profile is rotationally aligned with the driven profile.

Abstract: A transducer for measuring the characteristics of a clamping instrument includes a stator which has an annular support adapted to form a substantially cylindrical longitudinal cavity adapted to receive a rotor which is also substantially shaped cylindrical adapted to rotate inside this cavity of the stator around its longitudinal axis, this rotor being provided at one end with a seat for insertion into it of the head of an instrument of tightening which determines such rotation around the axis, and a sensor arranged on its body capable of detecting specific parameters of the tightening of the instrument, and generating corresponding electrical signals. The transducer includes a magnetic coupling device adapted to transfer electrical energy from the stator to the rotor and an optical coupling device adapted to transfer the electrical signals generated by said sensor means from the rotor to the stator.

Abstract: There is provided an electrolytic tank assembly facilitating alignment and levelling of an electrolytic tank with respect to adjacent electrolytic tank. A levelling assembly can include a plurality of adjustable levelling mechanisms being independently actuable to cause upward or downward movement of the electrolytic tank. A sole assembly can include friction and sliding soles for controlling transversal movement of an electrolytic tank with respect to support beams onto which the tank is supported. A strap assembly comprising a vertically extending strap and a connector provided at an end of the vertically extending strap can be connected to each adjustable levelling mechanism of the levelling assembly. Various type of connectors can be provided at the other end of the strap to provide anchorage to accessory for operation, lifting, maintenance, etc.

Abstract: Disclosed herein is a power tool comprising a motor unit comprising a motor and a drive axle connected to the motor, a battery unit configured to receive a battery and a handle unit interconnecting the motor unit and the battery unit, the handle unit comprising: a frame extending from the motor unit to the battery unit; a control button mounted to the frame for controlling the power tool; a circuit board mounted to the frame and connected to the control button; cables interconnecting the battery unit, the circuit board and the motor unit; an antenna connected to the circuit board for communication of the power tool with external devices; a pair of outer handle covers for covering the handle unit; wherein the frame is made of an electrically conductive material.

Abstract: Disclosed herein is a power tool comprising a motor unit comprising a motor and a drive axle connected to the motor, a battery unit configured to receive a battery and a handle unit interconnecting the motor unit and the battery unit, the handle unit comprising: a frame extending from the motor unit to the battery unit; a control button mounted to the frame for controlling the power tool; a circuit board mounted to the frame and connected to the control button; cables interconnecting the battery unit, the circuit board and the motor unit; an antenna connected to the circuit board for communication of the power tool with external devices; a pair of outer handle covers for covering the handle unit; wherein the frame is made of an electrically conductive material.