2964 results about "Power tool" patented technology

The object of the present invention is to provide a personal care power tool, comprising a driving component, a working component, an inner shell, an outer shell and a protective cover, wherein the driving component is provided with a Hall switch, a magnet is provided on at least one surface of the protective cover, the outer shell is provided on the outside of the inner shell, and the protective cover is provided on the outside of the working component; when the protective cover is removed from the outside of the working component and installed on the bottom of the inner shell, the magnet approaches and turns on the Hall switch, starting the power tool; when the protective cover is removed from the bottom of the inner shell, the magnet moves away from and turns off the Hall switch, turning off the power tool. The technical effect is as follows: the protective cover of the power tool has the function of a switch, that is, the protective cover becomes a functional and indispensable part of turning on or off the power tool, thereby avoiding the user from placing the protective cover at will and avoiding the possibility of losing the protective cover.

An edge trimming tool assembly (1) is disclosed configured to cut vegetation around edge formations (50). The assembly (1) comprises a drive shaft (3) and a trimming tool (5) configured to be rotated around a rotation axis (ax) by the drive shaft (3) such that a radially outer portion (5) of the trimming tool (5) orbits in a circular path (c). The assembly (1) comprises a guard (7) comprising a first guard portion (11) covering a portion of an area (A) formed inside the circular path (c) as seen in a first direction (d1) parallel to the rotation axis (ax) and a second guard portion (12) covering a portion of the area (A) as seen in a second direction (d2) parallel to the rotation axis (ax), wherein the second direction (d2) is opposite to the first direction (d1). The present disclosure further relates to a power tool (2) comprising an edge trimming tool assembly (1).

A power tool is provided including a power supply interface receiving a removable battery pack, a brushless direct current (BLDC) motor including a rotor and a stator, and a multi-phase inverter bridge circuit. A controller is provided to output drive signals to the inverter bridge circuit to control flow of current from to the motor, where each drive signal is activated within each corresponding phase of the motor within a conduction band. The controller is configured to control a length of the conduction band at a variable value within a first torque range below a torque threshold and at a substantially constant value within a second torque range above the torque threshold. The torque threshold is greater than approximately 1 Newton-meters and the motor produces a maximum power output of at least approximately 1250 watts at the torque of approximately 1 Newton-meters.

An electric tool includes: a housing assembly including a housing body and an operation portion integrally connected with the housing body; a driving mechanism connected to the housing assembly and including a motor and a transmission shaft connected to and driven by the motor; and a control module arranged within the housing assembly and comprising a controller and a sensing element that is electrically connected to the controller. The motor is electrically connected to the controller. The sensing element is arranged at an inner side of the operation portion. The sensing element is to detect a user operation on the operation portion and output a signal to the controller, and the controller is to control the motor in response to the signal output by the sensing element.

A power tool comprises a housing, a motor assembly and an impact assembly configured to be driven by the motor assembly. The impact assembly comprises a hammer defining a hammer chamber therein and an anvil at least partially disposed in the hammer chamber and configured to rotationally drive an output shaft. The anvil comprises a body portion, an anvil chamber defined therein, and a reciprocating member configured to selectively move radially outwardly relative to the body portion to be selectively impacted by an impact member of the hammer so that the hammer selectively imparts rotational movement to the anvil. The anvil includes an active valve configured to control discharge of fluid from an anvil chamber to the hammer chamber. The active value variably opens based on variance of one or more physical characteristics of the fluid (e.g., at least one of volume, temperature, pressure, or viscosity of the fluid).

The invention relates to the technical field of electric tools, in particular to a high-stability electric circular saw base which comprises a main machine shell, a lateral protective cover is movably assembled on the side wall of the main machine shell, an electric control type cutting circular saw is installed on the side wall of the main machine shell and located in the lateral protective cover, and a lateral stability adjusting base is arranged on one side of the main machine shell. And a side hanging type dust collecting box is mounted on the side wall of the lateral stable adjusting seat. According to the high-stability machine base for the electric circular saw, the lateral stability adjusting base is arranged on one side of the main machine shell, the position of the whole electric circular saw is limited through the lateral stability adjusting base, and therefore the stability of the electric circular saw in the mounting and cutting process is improved, and operation is convenient; the embedded overhead guide rail with the built-in electric control lead screw is fixedly assembled on the upper surface of the lateral stability adjusting seat, the electric control lead screw is directly connected with the main machine shell and is controlled, and storage and unfolding are convenient.

Certain embodiments provide a power tool comprising a motor including a flywheel, an inertial measurement unit (IMU) configured to output IMU data, and a controller coupled to the motor and the IMU. The controller is configured to process the IMU data to generate processed IMU data, detect, based on the processed IMU data, whether the power tool has been moved in a pickup motion that is associated with an imminent use of the power tool, and increase a speed of the motor to a target speed in response to the detection.

A handheld power tool includes a grip for a user to hold; an output shaft rotatable about a first axis; a mounting device for mounting a working attachment to the output shaft, where the working attachment has a mounting port that matches the output shaft; and an operating member capable of driving the output shaft to move along the direction of the first axis to lock or loosen the working attachment. The operating member could be located at least at a first position, a second position and a third position. When the operating member is located at the first position, the working attachment is locked; when the operating member moves from the first position to the second position, the output shaft moves downward along the first axis by a first preset distance. The third position is different from the first position and the second position.

The invention relates to the technical field of electric tool control, in particular to a motor control method of a target electric tool and a motor control circuit executing the motor control method, and the method comprises the steps: obtaining peak current at a detection resistor and a current PWM signal duty ratio, calculating real-time average current according to the peak current and the current PWM signal duty ratio, and comparing the real-time average current with an average current threshold value; and adjusting the duty ratio of the PWM signal according to the result, and outputting the PWM signal to drive the motor according to the adjusted duty ratio. By dynamically adjusting the duty ratio, the stability and safety of the electric tool under high load are effectively improved, the operation experience is optimized, the hardware upgrading requirement can be met, and the use bottleneck is broken through.

A tool includes an elongated shaft and a socket positioning assembly disposed on the shaft. A rear end portion of the shaft is configured to be mounted for rotation by a hand tool or a power tool. The shaft is configured to support a first socket and a second socket. Each socket is selectively positionable on the shaft in either a use configuration or in a storage configuration. The socket positioning assembly includes a socket support member configured to support the first socket in its use configuration proximate the front end portion of the shaft, and a socket retainer configured to retain at least the second socket in its storage configuration on the shaft. The storage configuration is between the socket retainer and the rear end portion of the shaft. The socket retainer is positioned between the first socket and the second socket.

The invention discloses a numerical control machine tool power tool apron noise reduction method based on UUSGSR, and belongs to the technical field of numerical control machine tool servo tool rest power tool apron monitoring. The method comprises the specific steps that Hilbert transform and elliptic filtering preprocessing are conducted on monitored bearing vibration signals in a tool rest power tool apron; constructing an unsaturated scaling type Gaussian potential stochastic resonance model processing signal; a high-order weighted harmonic noise ratio HWHNR is proposed as a target function to reflect signal nonlinear characteristics; optimizing the structural parameters and the damping factors by using a grey wolf optimization algorithm to obtain an optimal under-damping unsaturated scaling type Gaussian potential stochastic resonance model UUSGSR containing the model structural parameters and the damping factors, and performing stochastic resonance processing on bearing vibration signals in the power tool apron of the tool rest by using the model. Noise contained in a bearing vibration signal in the power tool apron of the tool rest is weakened, and the signal-to-noise ratio is improved. In conclusion, the method can realize noise reduction of the vibration signal of the bearing in the power tool apron of the tool rest.

A power tool including a housing with a first housing portion and a second housing portion, the first housing portion and the second housing portion collectively defining a head housing portion. The power tool also includes a motor supported within the head housing portion and including an output shaft, a gear case completely enclosed by the head housing portion, a gear assembly engaged with the output shaft and supported within the gear case, and a drive assembly driven by the gear assembly and supported within the head housing portion.

A power tool includes a motor, a spindle, an inner housing, an outer housing formed by an upper member and a lower member, a pair of interposing members and a pair of elastic members. The interposing members are arranged leftward and rightward of the inner housing, respectively, and fixedly connected to a first member, which is one of the upper member and the lower member, and at least partially in contact with an inner surface of the first member. The elastic members are held between a left portion of the inner housing and one of the interposing members and between a right portion of the inner housing and the other of the interposing members, respectively. A first end portion of each of the interposing members has at least one first surface extending to be closer to the inner housing toward a tip end of the first end portion.

A power tool kit includes a storage case configured to store a hand-held power tool and ancillary devices. The storage case includes a first case half pivotably joined to a second case half. In addition, the storage case includes a worktable configured to be stowed inside the storage case. The worktable is formed of a first foldable panel that is rotatably joined to the first case half and a second foldable panel that is rotatably joined to the second case half. When the storage case is in an open case configuration, the first and second panels lie flat and cooperate to form a worktable that includes a power tool guide device.

The invention provides wear resistance testing equipment for an electric tool firing pin, and relates to the technical field of wear resistance testing of electric tool firing pins, and the wear resistance testing equipment comprises a support driving part, a wear resistance testing part, a connection sealing part, a movable mounting part and a positioning clamping part; the wear resistance testing part is mounted on the supporting and driving part; the connection sealing part is mounted on the wear resistance testing part; the movable mounting part is mounted on the left side of the support driving part; the positioning and clamping part is mounted on the movable mounting part, and a to-be-tested electric tool firing pin is mounted on the positioning and clamping part; according to the invention, a worker can conveniently know the wear-resistant condition of the electric tool firing pin in a high-temperature state, so that the wear-resistant test precision of the electric tool firing pin is higher; the problem that the wear resistance of the electric tool firing pin at high temperature cannot be tested due to the fact that the to-be-tested electric tool firing pin is also cooled by the sprayed cooling liquid when the friction disc on the wear resistance test equipment is cooled by spraying the cooling liquid generally is solved.

A power tool includes a tool housing, a motor positioned within the tool housing, and a controller coupled to the motor. The controller is configured to determine a critical date for the power tool and upload the critical date to an embedded calendar of the controller and send an alert to a user indicating when the critical date will occur, wherein the alert further includes an action associated with the critical date.

An actuating unit for releasing a battery device for a hand-held power tool having a locking element for locking the actuating unit and having an actuating element that is provided to move the locking element from a retaining state into a release state of the actuating unit. It is provided that in the release state, the locking element is held with a positive fit and / or with a frictional fit.

The invention relates to the field of precise motion control, in particular to a precise motion control method and system for a multi-axis linkage direct-drive-force tool tower crane. Comprising the following steps: acquiring a processing track, dispersing the processing track into a plurality of spatial motion units, and determining a target displacement for each motion axis; receiving a completion signal; and after determining that the motion axis participating in the current space motion unit completes the corresponding target displacement according to the completion signal, obtaining the completion time of each motion axis, and issuing the target displacement corresponding to the next space motion unit to each motion axis by taking the completion time of the motion axis with the longest completion time as a time reference. Therefore, each motion shaft is started to move the next space motion unit. The technical problems that the machining precision is reduced and the product quality is unqualified due to clock frequency drift and movement shaft synchronization deviation accumulation caused by gradual change of microcosmic physical characteristics in a system of a multi-shaft linkage direct-driving-force tool tower crane are solved.

A tool is provided including a motor, a power switch circuit disposed between a power source and the motor, and a control unit that controls the power switch circuit to drive the motor. The control unit is configured to apply a current clip threshold to a current passing through a bus line located between the power source and the power switch circuit to maintain a peak current of the bus line at approximately the current clip threshold. The control unit is further configured to variably control the current clip threshold based on the current passing through the bus line.

A power tool is provided including: a tool housing; a motor disposed within the tool housing; a battery receptacle arranged to be coupled to a battery pack having a rated capacity; a power switch circuit disposed between the battery receptacle and the motor; and a controller that controls the power switch circuit to drive the motor. The controller is configured to: determine or receive a pack ID associated with the rated capacity of the battery pack; set a braking profile for electronically braking the motor based on the pack ID; and apply an electronic brake to the motor in accordance with the set braking profile upon detection of an event associated with stoppage of the motor.

A power tool includes a first housing, a dust box coupled to the first housing and defining an inlet and an outlet, a filter positioned between the inlet and the outlet, and a first motor operating a fan to generate an airflow across the filter between the inlet and the outlet. The power tool also includes a first sensor to sense an airflow characteristic of the airflow and a second sensor to sense an operating parameter of the power tool. A first controller is in communication with the first sensor to monitor the airflow characteristic of the airflow and the second sensor to monitor the operating parameter. The first controller controls operation of the power tool based on a value of the airflow characteristic and the operating parameter.

A tool accessory holder for use with a tool accessory case and configured to couple to a power tool, a tool system, and tool accessory storage system. The tool accessory holder can be removed from the tool accessory case and coupled to the power tool and removed from the power tool and coupled to the tool accessory case. The tool system includes an accessory holder and a power tool. The tool accessory holder is alternately couplable to the tool accessory storage case and to the power tool.

The invention relates to the technical field of space operation equipment, in particular to an electric tool applied to on-orbit operation of a space mechanical arm. The high-precision control and the autonomous operation capability of the tail end of the space manipulator on the tool state in a complex space environment are realized, and the reliability, the flexibility and the automation degree of on-orbit operation are greatly improved. Compared with the prior art, the electric tool has the advantages that the structural integration degree, the function expandability and the intelligent feedback control are remarkably improved, and the electric tool is innovatively designed in the aspects of automatic storage of the bit, operation continuity and space environment adaptability; and the execution efficiency and the safety level of on-orbit maintenance and construction tasks of space stations, satellites and other spacecrafts can be effectively improved.

A power tool includes a main housing, a drive mechanism, a working head, and a connection assembly. The connection assembly includes an input portion connected to the drive mechanism and an output portion connected to an output shaft. The connection assembly rotates the working head about a first axis relative to the main housing. The power tool includes a first transmission path. When the working head rotates about the first axis relative to the main housing, components in the first transmission path are allowed to deform or to be displaced along a direction of the first transmission path.

The utility model provides a motor fan blade, a motor and an electric tool, the motor fan blade comprises a fan blade disc, the middle of which is provided with a shaft hole; the multiple fan blades are spirally arranged on the fan blade discs in the first direction, the multiple fan blade discs are evenly distributed on the fan blade discs, each fan blade comprises a tail end close to the outer edge of the corresponding fan blade disc and a front end close to the corresponding shaft hole, and in the spiral direction of the fan blades, the tail end of each fan blade is close to the outer edge of the corresponding fan blade disc, and the front end of each fan blade is close to the corresponding shaft hole. And the thickness of the fan blade is gradually increased from the front end and the tail end to the middle. The fan blade is of a structure with the thick middle and the two thin ends, the strength of the blade is improved, the fan blade can bear high rotating speed, the included angle between the tail end of the fan blade and the fan blade disc, the included angle at the air inlet position of the fan blade and the size of the fan blade are reasonably designed, so that a cavity flow field is smoother, efficiency is improved, and under the same performance, the size is smaller, and cost is reduced. The noise is lower, and the purposes of high performance, miniaturization, light weight and low noise of the motor are achieved.

Disclosed herein is a hand-held power tool including a motor housing, a motor in the motor housing, an auger coupled to the motor and having a rotational axis, and a first handle coupled to the motor housing and including a grip. In some embodiments, the rotational axis of the auger and an axis of the grip subtend to an acute angle.

The invention relates to the technical field of tool turrets, in particular to a numerical control power tool turret which comprises a turret frame and a turret base, the turret base is connected to the turret frame in a sliding mode, the turret frame can move in the horizontal transverse and longitudinal direction, a turret body is installed on the turret base, a roller pin is arranged on the turret base corresponding to the turret frame, and an embedding groove is formed in the turret base corresponding to the roller pin. The roller pins are embedded in the embedding grooves, and the roller pins can abut against the tower in the embedding grooves. The tower base is connected to the tower frame in a sliding mode, the tower frame can move in the horizontal transverse and longitudinal direction, flexible movement of the tool turret in the horizontal transverse and longitudinal direction can be achieved, the tool turret body is installed on the tower base, machining operation is facilitated, the tower base abuts against the tower frame through the roller pin, the roller pin is embedded in the embedding groove, and the roller pin can rotate. Therefore, the friction between the original tower base and the tower frame can be converted, so that the friction between the tower base and the tower frame is reduced, the sliding of the tower base on the tower frame is smoother, and the condition that the tower base and the tower frame are damaged due to repeated friction after being used for a long time is reduced.

An electric-tool-torque control system includes a torque tester, a force-multiplier structure, and an electric tool. The torque tester includes a detection shaft and a communication module. The force-multiplier structure includes a force-output end, a force-input end, a signal transmission unit, and a storage unit. The electric tool includes a force-output terminal, a control circuit, and a signal transmission module. The signal transmission module is electrically connected to the control circuit. The force-multiplier structure is assembled onto the torque tester. A test data is transmitted to the signal transmission unit through the communication module, and is transmitted from the signal transmission unit to the storage unit for storage. The signal transmission unit transmits the test data to the signal transmission module. The signal transmission module transmits the test data to the control circuit. The control circuit drives the force-multiplier structure to rotate based on the test data.