Abstract: A machine tool with lathe tool and milling cutter includes a machine support, a worktable, a moving device, a lathe feeding mechanism and a milling feeding mechanism. The worktable is positioned on the machine support. The moving device is slidably assembled to the machine support along a first direction and located above the worktable. The lathe feeding mechanism and the milling feeding mechanism are slidably assembled to the moving device along a second direction perpendicular to the first direction. The lathe feeding mechanism includes a feeding assembly and a lathe tool connected to the feeding assembly. The feeding assembly is configured for driving the lathe tool to move along a third direction substantially perpendicular to the first and second direction reciprocally, the milling feeding mechanism includes a milling cutter and is configured for driving the milling cutter to move along the third direction.

Abstract: A feeding device includes a tool holder, a cutter, a feeding mechanism and a mounting seat. The cutter is positioned on the tool holder. The mounting seat has at least one guiding portion. The tool holder is engaged with the at least one guiding portion. The feeding mechanism drives the tool holder and the cutter to controllably reciprocate along the at least one gliding portion.

Abstract: A milling method for machining a metallic member to provide a finished appearance is provided. A metallic member is positioned on a worktable. The metallic member includes a top portion and a peripheral sidewall. The peripheral sidewall includes an end edge. After rotation, the milling cutter is rotated and resists the peripheral sidewall of the metallic member. The milling cutter is moved along a predetermined path, and the milling cutter machines the metallic member to achieve a required shape and finish. The worktable rotates the metallic member to enable the end edge of the peripheral sidewall to face the milling cutter, and the milling cutter chamfers the end edge along a predetermined path, while simultaneously controlling a feed of the milling cutter relative to the metallic member.

Abstract: A de-noising method for remote images of ground buildings using spectrum constraints. The method includes: 1) obtaining a reference image of ground buildings from a remote image database of the ground buildings, performing a Fourier transformation on the reference image to obtain an amplitude spectrum, and performing a threshold segmentation, an erosion operation and a dilation operation successively on the amplitude spectrum to obtain a binary template of spectrum of the ground buildings; and 2) obtaining a real-time image of the ground buildings by a high-speed aircraft, performing a Fourier transformation on the real-time image to obtain a spectrum, filtering the spectrum of the real-time image in frequency domain by the binary template of spectrum of the ground buildings, and performing an inverse Fourier transformation thereon to generate a filtered real-time image of the ground buildings.

Abstract: A lathe includes a machine support, a work table, a moving device and a feeding device. The work table is rotatably positioned on the machine support for driving a workpiece placed on the work table to rotate. The moving device is movably mounted, slidably on the machine support along a first direction above the work table. The feeding device is slidably positioned on the moving device along a second direction vertical to the first direction, the feeding device includes a cutter. The feeding device drives the cutter backwards and forwards under precise control at high speed along a third orthogonal direction for machining the workpiece.

Abstract: A USB plug includes a first housing piece having a base portion and a tongue portion extending forwards from the base portion, a second housing piece, a plurality of contacts and a cable. Each contact comprises a contacting portion, a retaining portion fixed in the first housing piece and a tail portion, the contacting portions exposed on the tongue portion for mating with a USB receptacle connector. The cable is soldering with tail portions of the contacts. The first housing piece defines a depression on a bottom surface thereof, the second housing piece is received in the depression and ultrasonic welding with the first housing piece.

Abstract: An electrical connector assembly includes a connector, an inner printed circuit board, and a light guide member made of transparent or semitransparent material. The connector comprising an insulative housing and a plurality of contacts received in the insulative housing, and each contact has a contacting portion and a soldering portion. The inner printed circuit board is welding with the soldering portions of the contacts and defines an LED. The light guide member is neighboring to the LED and exposed out of the electrical connector assembly. The inner printed circuit board defines a control module thereon for controlling the LED on or off and a touch switch arranged in front of the control module, the LED is electrically connected with the control module and the touch switch.

Abstract: A method for machining curved surface includes the flowing steps. A lathe is provided. The lathe includes a work table and a feeding device. The feeding device has a cutter. A workpiece is held on the work table. The work table rotates the workpiece. The feeding device controls the cutter to move backwards and forwards at a high speed to machine the workpiece circumferentially. The feeding device moves in a plane relative to the work table to machine the curved surface.

Abstract: A machine tool includes a machine support, a work table positioned on the machine support, a moving device and a feeding device. The moving device is movably mounted on the machine support along a first direction above the work table. The feeding device is slidably positioned on the moving device along a second direction at ninety degrees from the first direction. The feeding device includes a feeding mechanism and a cutter. The feeding mechanism drives the tool holder and the cutter to move back and forth along a third orthogonal direction.

Abstract: A lathe includes a machine support, a work table, two cross beams and a feeding device. The work table is positioned on the machine support. The two cross beams are mounted on the machine support above the work table. The feeding device includes a cutter. The feeding device is slidably assembled between the two cross beams to obtain support from opposite sides of the two cross beams.

Abstract: A feeding device includes a tool holder, a cutter, a feeding mechanism and a mounting seat. The cutter is positioned on the tool holder. The mounting seat has at least one guiding portion. The tool holder is slidably engaged with the at least one guiding portion. The feeding mechanism includes at least two drivers. Each driver includes a forcer and a stator. The forcers are mounted in the mounting seat, the stators are fixedly positioned on the tool holder. Interactions between alternating magnetic fields produced by the forcers and magnetic fields produced by the stators drive the tool holder and the cutter to backwards and forwards under precise control along the guiding portion.

Abstract: A polishing device for optical elements includes: a tool shank (1), and a polishing disc base; wherein the tool shank (1) is connected to the polishing disc base and is mounted on a tool shaft of a numerical-controlled processing device; wherein a polishing film (3) is stuck on the polishing disc base; the polishing disc base is a profiling polishing disc base (7), a cylinder polishing disc base (2), a profiling polishing disc base (12) or a spherical polishing disc base (8); wherein the tool shank (1) is independent and universal, thereby reducing the processing cost of the polishing device. A polishing method for optical elements is based on the shapes mentioned above of the polishing disc base.

Abstract: Data query in a share-nothing database includes obtaining a query request and generating an optimized access plan with respect to the query request. The query request relates to external data stored in an external data source and contains a definition for expected distribution of the external data. The data query also includes obtaining data distribution information related to the expected distribution based on the optimized access plan, transmitting the data distribution information to the external data source so that the external data source splits and returns the external data in accordance with the data distribution information, and executing query-related processing of the split external data in accordance with the optimized access plan.

Abstract: An electric machine includes a stator core, a rotor core, a shaft and at least one pair of magnets. The stator core surrounds the stator core. The rotor core enfolds the shaft and includes at least one groove. The groove includes a pair of sub-grooves. The sub-grooves define an angle ? therebetween. The angle ? satisfies: ?<180°. The magnets are respectively accommodated in the sub-grooves of the groove.

Abstract: A motor includes a main body and a cooling device. The cooling device includes a mounting seat defining an inlet hole and an outlet hole spaced from the inlet hole, and a cooling pipe communicating with the inlet hole and defining a plurality of ejection holes on a sidewall. The main body includes a rotor sleeved and sealed on the mounting seat. The cooling pipe is received in the rotor. Cooling liquid sprays at the rotor via the inlet hole and the ejection holes, and then the cooling liquid flow out of the rotor via the outlet hole.

Abstract: A feeding device includes a sliding member, a main shaft, a tool holding assembly, a locking assembly, and a locking assembly. The sliding member is slidably couplable to a moving member. The main shaft is rotatably coupled with the sliding member. The tool holding assembly includes a connecting member detachably connectable to the main shaft and configured for holding one of a plurality of tool heads, the connecting member defining two clamping grooves. The locking assembly is positioned on the sliding member having a driving member attached to the sliding member, and a pair of claws attached to the driving member. The disclosure also supplies a machine tool using the feeding device, and a method for manching using the machine tool.

Abstract: A lathe includes a machine support, a working table positioned on the machine support, a rotating driver, a moving device, and a feeding device. The rotating driver rotates the work table. The moving device includes at least one cross beam, at least one first driving mechanism, and at least one second driving mechanism. The cross beam is movably positioned on the machine support above the working table. The feeding device is movably positioned on the at least one cross beam, and includes a feeding driving mechanism and a cutter. The first driving mechanism drives the cross beam to move along a first direction, and the second driving mechanism drives the feeding device to move along a second direction at about ninety degrees from the first direction. The feeding mechanism drives the cutter to move backwards and forwards along a third direction perpendicular to the first and second direction.

Abstract: A machine control system includes an input module, a worktable, a first sliding module, a second sliding module, a lathe feeding module, a lathe tool connected to the lathe feeding module, a milling feeding module, a milling cutter connected to the milling feeding module, and a control module. The control module is electrically connected to the input module, the worktable, the first sliding module, the second sliding module, the lathe feeding module, and the milling feeding module, wherein the input module inputs control parameters into the control module to control the first sliding module and the second sliding module. The lathe feeding module controls the lathe tool to slide along a third direction perpendicular to the first direction and the second direction reciprocally, and the milling feeding module controls the milling cutter to slide along the third direction and rotate along a first axis.

Abstract: A method for machining and finishing a metallic member to provide a finished product without any additional process uses a lathe and a milling process. A non-circular metallic member on a worktable is rotated, and lathe tool moved backwards and forwards to machine the peripheral top portion of the metallic member. The path of the lathe tool machines curved surfaces of the top portion of the metallic member. The rotation of the metallic member is then stopped, and a milling cutter is brought to meet the peripheral sidewall of the metallic member. The movement and feeding of the milling cutter is predetermined. The worktable rotates the metallic member to enable one end edge of the peripheral sidewall and then another to face the milling cutter, and have the end edge chamfered by the milling cutter.

Abstract: A machine tool with lathe tool and milling cutter includes a machine support, a worktable, a moving device, a lathe feeding mechanism and a milling feeding mechanism. The worktable is positioned on the machine support. The moving device is slidably assembled to the machine support along a first direction and located above the worktable. The lathe feeding mechanism and the milling feeding mechanism are slidably assembled to the moving device along a second direction perpendicular to the first direction. The lathe feeding mechanism includes a feeding assembly and a lathe tool connected to the feeding assembly. The feeding assembly is configured for driving the lathe tool to move along a third direction substantially perpendicular to the first and second direction reciprocally, the milling feeding mechanism includes a milling cutter and is configured for driving the milling cutter to move along the third direction.