公开(公告)号：US20210308821A1

公开(公告)日：2021-10-07

申请号：US16625524

申请日：2018-04-23

申请人： NSK LTD.

发明人： Takeshi EBINA ,  Kengou MIZUURA

IPC分类号： B24B19/06 ,  B24B47/12

摘要： An oscillating device includes: a driving source; an oscillating member which performs an oscillating motion; and a connecting mechanism which converts a rotational motion of the driving source into an oscillating motion and transmits the oscillating motion to the oscillating member. At least one of a part or whole of a component forming the connecting mechanism is a component made of a fiber-reinforced resin, and the component made of a fiber-reinforced resin includes a reinforced fiber and a binder resin.

公开(公告)号：US11072051B2

公开(公告)日：2021-07-27

申请号：US16740809

申请日：2020-01-13

申请人： TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.

发明人： Bruce Cho ,  Chia-Ying Tien ,  Huang-Chu Ko

IPC分类号： B24B47/12 ,  B24B37/005 ,  B24B37/10 ,  H01L21/321 ,  H02P29/00 ,  B24B37/04 ,  H01L21/306 ,  B24B1/00

摘要： A method of controlling platen rotation includes receiving an electrical energy input at a rotator assembly, using the rotator assembly to increase a rotational kinetic energy of a platen based on the electrical energy input, using the rotator assembly to decrease the rotational kinetic energy of the platen, and generating an electrical energy output of the rotator assembly based on the decreased rotational kinetic energy of the platen.

公开(公告)号：US20210131126A1

公开(公告)日：2021-05-06

申请号：US17149751

申请日：2021-01-15

申请人： Qianhan Zhuang

发明人： Qianhan Zhuang

IPC分类号： E04G5/00 ,  B24B47/12 ,  B24B27/033

摘要： This invention discloses a descaling apparatus for steel tubes of the building scaffold, belonging to the technical field of construction equipment, which solves the existing problems with low quality in rust-removal of the steel tube of the building scaffold, and the descaling apparatus for steel tubes of the building scaffold comprises a bottom panel (1), a working table (11), a pushing base (2) on the bottom panel (1) along a length direction, several of forward rust-scraping rings (3) and several of reverse rust-scraping rings (4) on the working table (11), several of forward scrapers (33) on the forward rust-scraping rings (3), several of reverse scrapers (43) on the reverse rust-scraping rings (4), a driving member on the working table (11), several sets of rolling assemblies (5) on the working table (11); this invention has a better rust-removal effect and is more labor-saving when in manual operation.

公开(公告)号：US20210121998A1

公开(公告)日：2021-04-29

申请号：US17075788

申请日：2020-10-21

申请人： Black & Decker Inc.

发明人： Manfred DROSTE ,  Benjamin SCHRAMM

IPC分类号： B24B7/18 ,  B24B23/03 ,  B24B47/12

摘要： A handheld pole sander is provided including an elongate body having two ends, the elongate body including a first pole and a second pole made partially of electrically conductive material and capable of sliding in and out of each other in a telescopic manner the first pole and second pole are made from electrically conductive material. An electric motor electrically controlled by control electronics is provided, and a sanding head is attached via a pivot mechanism to a first end of the elongate body. At least one seal is located between overlapping parts of the first pole and second pole. The seal includes an electrically conductive material and provides an electrical connection between the first pole and second pole. Alternatively, at least one electrical contact is provided between the first pole and second pole to provide an electrical connection between the first pole and second pole.

公开(公告)号：US10919124B2

公开(公告)日：2021-02-16

申请号：US15967957

申请日：2018-05-01

申请人： KAPP Werkzeugmaschinen GmbH ,  NILES Werkzeugmaschinen GmbH

发明人： Holger Armborst ,  Stefan Kramer

IPC分类号： B24B47/10 ,  B24B47/12

摘要： A grinding machine including an electric drive with a drive wheel, wherein the electric drive is arranged on a base unit of the grinding machine, a grinding spindle unit constructed as a grinding arm arranged removable on the base unit and which includes a grinding tool and a gear element which transmits the rotational movement of the drive wheel to the grinding tool. To facilitate the change of the grinding arm, the gear element includes: a driver which is supported on the grinding spindle unit and which is directly or indirectly in rotary union with the grinding tool, two guide wheels which are supported on the grinding spindle unit and a belt which is guided around the driver and the guide wheels, wherein in the mounted state of the grinding spindle unit at the base unit the drive wheel contacts the belt between the two guide wheels and hereby drives the same.

公开(公告)号：US10821569B2

公开(公告)日：2020-11-03

申请号：US15899012

申请日：2018-02-19

申请人： DAEWON APPLIED ENG. CO

发明人： Chan-Ki Chung

IPC分类号： B24B7/16 ,  B24B7/06 ,  B24B47/12

摘要： The present disclosure relates to a contiguous compression wire sprang polishing apparatus that continuously polishes end surfaces of compression wise springs (10) by upper and lower chain conveyers 100 and 200 and grinding units 300. The apparatus includes: two gaming units (300) each having a grindstone (350) to which rotational force of a motor (240) is transmitted through a gear box (260), the motor (240) having a rotary shaft being located above a central axis of the grindstone (350), and the two grinding units (300) being installed to be parallel and opposite to each other at opposite sides of a compression wire spring (10) fixed to the continuous compression wire spring polishing apparatus so as to polish opposite end surfaces of the compression wire spring (10); two hinge shafts (140), which are fixed at positions, which are spaced apart from grindstones in the lowest surface of the grinding units (300) by a predetermined distance, and which are inserted into and coupled to bearings, which are fixed to a body of the polishing apparatus; an upper guide (225) configured to prevent the compression wire spring (10) from springing out and a rod end fixing shaft (150) fixed to an end of the cylinder rod (170) of the pneumatic cylinder (180) inserted into and coupled to a bearing fixed at a position between the grindstone rotation shaft and the hinge shaft (140) in each of the grinding units (300). The grindstone rotation shaft of each of the grinding units (300) is turned into the vertical state or the horizontal state according to the forward and backward movements of the pneumatic cylinder (180), so that the two grindstones (350) of the grinding units (300), which are mounted to be parallel and opposite to each other, can be easily replaced.

公开(公告)号：US20200259429A1

公开(公告)日：2020-08-13

申请号：US16635553

申请日：2018-06-29

申请人： Koki Holdings Co., Ltd.

发明人： Takuya YOSHINARI ,  Hideyuki TANIMOTO

IPC分类号： H02P3/22 ,  B24B47/12

摘要： Provided is a power tool capable of performing braking in which deterioration and breakage of elements are inhibited. In a brake control, an arithmetic unit 21: performs a switching control of a combination of any of upper arm side Q1-Q3 switching elements and any of lower arm side switching elements Q4-Q6 while sequentially switching the elements; and causes a current to flow in a closed loop (a closed loop in the same direction as during driving of the power tool) in order through any of the upper arm side Q1-Q3 switching elements, stator coils 6e, any of the lower arm side switching elements Q4-Q6, and a first diode bridge 15.

公开(公告)号：US20200180098A1

公开(公告)日：2020-06-11

申请号：US16790760

申请日：2020-02-14

申请人： Yingying Zhong

发明人： Yingying Zhong

IPC分类号： B24B9/12 ,  B24B55/06 ,  B24B41/06 ,  B24B47/12

摘要： The invention discloses a glass bottle mouth fine grinding device, which includes a working box and a working chamber located in the working box. A placing box is slidably arranged in the working chamber. The placing box is provided with a placing chamber. A glass bottle is slidably disposed in the placement cavity, and first cavities are symmetrically arranged on the left and right sides of the placement cavity. A circular clamping block is slidably disposed in the first cavity. The first cavity is connected by a first spring, and a second cavity is provided at the bottom of the placing box. A sliding block is slidably disposed in the second cavity, and the sliding block and the second cavity are connected by a second spring.

公开(公告)号：US10658903B2

公开(公告)日：2020-05-19

申请号：US15672712

申请日：2017-08-09

申请人： Black & Decker Inc.

发明人： Michael K. Forster ,  John C. Vanko ,  Bhanuprasad V. Gorti ,  Tal Gottesman

IPC分类号： H02P6/14 ,  H02P6/28 ,  H02P6/15 ,  B24B47/12 ,  H02P6/04 ,  H02K7/14 ,  B25F5/00 ,  B24B23/02

摘要： A power tool is provided including a brushless electric motor, a switching arrangement having motor switches and interposed between the electric motor and a power supply, and a controller configured to control a switching operation of the motor switches for driving the electric motor and enforce a current limit on the current delivered to the electric motor. The controller receives a measure of current passing from the power supply to the switching arrangement and takes corrective action to reduce current delivered to the electric motor if the measured current exceeds the current limit. The controller further receives a signal corresponding to at least one of a type and/or a nominal voltage of the power supply and sets the current limit based on the received signal.

公开(公告)号：US20200147743A1

公开(公告)日：2020-05-14

申请号：US16504081

申请日：2019-07-05

申请人： CITIC Dicastal CO., LTD.

发明人： Yacong ZHANG ,  Bowen XUE ,  Hongbao WANG ,  Jiandong GUO

IPC分类号： B24B9/04 ,  B24B41/06 ,  B24B47/12 ,  B24B47/20

摘要： A multi-functional wheel deburring device is capable of removing burrs at the center hole, the flange weight reducing socket, the spoke back cavity weight reducing socket and the spoke edge of the wheel during the use.