Electrical tool having driving shock absorbing structure

    公开(公告)号:US12011817B2

    公开(公告)日:2024-06-18

    申请号:US18092775

    申请日:2023-01-03

    IPC分类号: B25F5/00 B23Q5/04

    CPC分类号: B25F5/006 B23Q5/043

    摘要: An electrical tool includes a housing, a motor, a bearing set and a shock-absorbing element. The motor is disposed in the housing and has a driving shaft and a nut. The bearing set is arranged on a side of the motor and includes a bearing seat, a bearing and a tool spindle. The tool spindle has a slot disposed at one end thereof facing the motor, and another end thereof is disposed protrusively from the bearing seat. One end of the driving shaft is combined in the slot through the nut. The shock-absorbing element sheathes the nut and is attached to an inner wall of the slot to reduce the vibration and noise during the operation of the electrical tool.

    POWER TOOL AND CONTROL METHOD THEREFOR
    3.
    发明公开

    公开(公告)号:US20230271305A1

    公开(公告)日:2023-08-31

    申请号:US18313062

    申请日:2023-05-05

    发明人: Hong Zhu Zhijian Lu

    摘要: A power tool includes a motor including a rotor and multi-phase stator windings; a driver circuit having multiple switch elements for outputting switch signals to drive the motor to rotate; and a controller electrically connected to at least the driver circuit and the motor. The controller is configured to acquire rotor position information of the motor and adjust a resultant magnetic potential of the motor according to the rotor position information such that an output electrical parameter of the motor corresponding to the resultant magnetic potential is within a preset parameter range.

    MACHINE TOOL AND INFORMATION PROCESSING DEVICE

    公开(公告)号:US20230052323A1

    公开(公告)日:2023-02-16

    申请号:US17973567

    申请日:2022-10-26

    发明人: Toshitaka NAGANO

    摘要: A machine tool includes: a movable body that supports a tool; a feed drive unit that feed-drives the movable body; a numerical control unit that controls the feed drive by the feed drive unit to perform cutting by the tool; an acceleration sensor that is provided on the movable body and detects acceleration of the movable body; and a command unit that outputs a stop command to stop driving of the feed drive unit to the numerical control unit when the acceleration of the movable body exceeds a threshold value set in advance on the basis of an output of the acceleration sensor. The command unit sets the threshold value to a first threshold value in a cutting control state, and sets the threshold value to a second threshold value lower than the first threshold value in a feed control in a non-cutting control state.

    TOOL COUPLING DEVICE WITH TRANSMISSION UNIT AND METHOD FOR PRODUCING A THREAD OR A THREADED HOLE

    公开(公告)号:US20220266365A1

    公开(公告)日:2022-08-25

    申请号:US17675463

    申请日:2022-02-18

    IPC分类号: B23G1/18 B23G1/46 B23Q5/04

    摘要: A tool coupling device for coupling a tool can comprise a drive shaft for coupling to the drive, an output shaft for coupling to the tool, the output shaft being rotatable about a central axis (A), a transmission unit connected between the drive shaft and the output shaft and translating a rotational movement of the drive shaft at an input speed (nS) into a rotational movement of the output shaft at an output speed (nW) greater than the input speed (nS) and a non-rotating housing, wherein the transmission unit, and at least a part of the input shaft and a part of the output shaft that are both coupled to the transmission unit, are arranged within the housing, wherein the drive shaft is rotatably mounted on the housing; and wherein the output shaft is rotatably supported solely on the input shaft and is not rotatably supported on the housing.

    NINETY DEGREE AUTO CHANGER SPINDLE MOUNTING ASSEMBLY

    公开(公告)号:US20210260708A1

    公开(公告)日:2021-08-26

    申请号:US17253338

    申请日:2019-06-06

    发明人: Kemma DODDS

    IPC分类号: B23Q5/04 B23Q5/06

    摘要: A novel mounting assembly used with an air spindle is described. The mounting assembly includes an insertable top portion for inserting into a mounting collar and to be rotatable therein, the insertable top portion formed with an upper disk shape with a first diameter and a lower disk shape with a second diameter and adjacent to the upper disk shape, an outer circumference of the upper disk shape having a groove formed therein, and the upper disk shape and the lower disk shape having a passage axially formed therethrough perpendicular to the groove. The mounting assembly further includes a sleeve disposed below the insertable top portion, the sleeve defining an opening with a sidewall which is perpendicular to the insertable top portion, the opening sized to hold a spindle, a port inside a wall of the sleeve defining the opening providing fluid communications with the passage of the insertable top portion.

    ELECTRONIC SPINDLE LOCK FOR A POWER TOOL

    公开(公告)号:US20210252652A1

    公开(公告)日:2021-08-19

    申请号:US17176505

    申请日:2021-02-16

    IPC分类号: B23Q5/04 B25B23/147

    摘要: Electronic spindle lock for a power tool. One embodiment provides a power tool including a housing, a bit receiving portion provided on the housing for receiving a power tool bit, a motor within the housing configured to rotate the bit receiving portion, and a controller coupled to the motor. The controller is configured to enter an electronic spindle lock mode, and detect rotation of the bit receiving portion in a first direction. The controller is also configured to control motor to rotate in a second direction in response to detecting rotation of the bit receiving portion in the first direction.

    Tool carrier assembly for use at a lathe and lathe having such tool carrier assembly

    公开(公告)号:US11059143B2

    公开(公告)日:2021-07-13

    申请号:US16503821

    申请日:2019-07-05

    摘要: A tool carrier assembly for use at a machine tool, which includes at least one workpiece-carrying spindle for rotatably driving a workpiece received in the workpiece-carrying spindle. The tool carrier assembly includes a first slide being movable in a first direction, a tool carrier being supported on the first slide and configured to hold a plurality of tools, a tool drive unit including a tool drive for engaging with one of the plurality of tools held by the tool carrier to rotatably drive said tool, when the tool is arranged at a tool drive position with respect to the tool drive, and a drive mechanism for driving movement of the first slide together with the tool carrier in the first direction relative to the tool drive position, when the tool drive is disengaged with the tool, to relatively move another tool of the plurality of tools into the tool drive position.

    Spindle device
    9.
    发明授权

    公开(公告)号:US10786881B2

    公开(公告)日:2020-09-29

    申请号:US16452068

    申请日:2019-06-25

    申请人: FANUC CORPORATION

    发明人: Masahiro Murota

    摘要: A spindle device includes: a spindle housing; a spindle shaft configured to be rotatably supported inside the spindle housing; a spindle mount having an insertion cavity into which the spindle housing is inserted along the axial direction of the spindle shaft; a flange portion projecting outward from the outer peripheral surface of the spindle housing and configured to be removably fixed to an end of the spindle mount that is closer to one opening of the insertion cavity; and a support member configured to support the spindle housing inserted in the insertion cavity by using, as a base, the other end of the spindle mount that is closer to the other opening of the insertion cavity.

    CENTER POINT DRILL AND CENTER POINT DRILL ATTACHMENT

    公开(公告)号:US20200180091A1

    公开(公告)日:2020-06-11

    申请号:US16793784

    申请日:2020-02-18

    申请人: Michael Paul Hill

    发明人: Michael Paul Hill

    摘要: A newly configured centerpoint drill and a drill attachment device that can be attached to a conventional cordless drill include configurations that require a user's hand to be in direct alignment with the keyless chuck of the drill to enable a user or operator to apply maximum pressure or force during use of a drill to reduce time and effort spent by a user/operator.