Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

4294 results about "Knife handles" patented technology

Rotary hammer

A tool holder attachable to a spindle of a hammer and which can receive a bit, the bit having a shank with at least one retaining groove extending along part of the shank, the retaining groove having a defined length, a front end and a rear end that limit axial movement of the bit in the tool holder, which tool holder comprises a hollow cylinder having an axis, an axial bore, a rear end that can be attached to the spindle of the hammer, and a front end that can receive the shank of the bit so that the bit is slidable within the cylinder in an axial direction, at least one retaining element that is located so that it can extend radially into the bore of the cylinder and into the at least one retaining groove of the bit so that the retaining element can be hit by the rear end of the retaining groove during the transition to idling and limit the extent of axial movement of the bit within the cylinder, at least one radial restraining element limiting movement of the retaining element in the radial direction, at least one axial restraining block limiting movement of the retaining element in the axial direction, when hit by the retaining element the axial restraining block movable to a limited extent in the axial direction with respect to the radial restraining element, and a resilient element located forward of the axial restraining block and arranged so as to attenuate the impact transmitted through the axial restraining block from the retaining element.
Owner:BLACK & DECKER INC

Rotary ultrasonic machining device based on non-contact energy transfer

The invention discloses a rotary ultrasonic machining device based on non-contact energy transfer. The rotary ultrasonic machining device based on non-contact energy transfer comprises a high-speed electric spindle, a primary side assembly fixed to the lower end of the high-speed electric spindle, an ultrasonic knife handle assembly composed of an ultrasonic knife handle and a secondary side assembly arranged on the periphery of the ultrasonic knife handle, and an ultrasonic power supply generator. The ultrasonic knife handle assembly is arranged at the lower end of the high-speed electric spindle, so that the secondary side assembly corresponds to the primary side assembly up and down. The ultrasonic power supply generator is connected with the primary side assembly. According to the rotary ultrasonic machining device based on non-contact energy transfer, the ultrasonic machining technology can be directly combined with existing computer numerical control (CNC) machining centers such as CNC engraving and milling machines, engraving and milling machines, high-gloss CNC machines and drilling and tapping centers, and original spindles do not need to be modified; non-contact energy transfer of ultrasonic waves is achieved through the primary side assembly and the secondary side assembly, and the rotation speed reaches 10,000 turns/min; in addition, the automatic knife switching function can be achieved by using an exiting magazine.
Owner:YUHUAN CNC MACHINE TOOL

Giant magnetostrictive rotary ultrasonic vibration knife handle

The invention relates to a giant magnetostrictive rotary ultrasonic vibration knife handle and belongs to the technical field of ultrasonic precise special machining. The knife handle comprises an amplitude-change pole, a giant magnetostrictive ultrasonic transducer, a hollow knife handle body, an auxiliary side component, a primary side component and a threaded pressing block, wherein the giant magnetostrictive ultrasonic transducer is connected with the amplitude-change pole through a threaded rod and installed in a cavity in the lower portion of the knife handle body; an ultrasonic vibrator formed by connecting the giant magnetostrictive ultrasonic transducer with the amplitude-change pole makes contact with the inner wall of the knife handle body, the lower end of the giant magnetostrictive ultrasonic transducer is tightly pressed onto the knife handle body through the threaded pressing block, and the threaded pressing block is connected with the knife handle body through threads; the lower end of the amplitude-change pole is tightly pressed through the threaded pressing block, and the threaded pressing block is connected with the knife handle body; the lower end of the auxiliary side component is fixed to the knife handle body through a screw, and the primary side component is fixed to the end face of a machine tool spindle. According to the giant magnetostrictive rotary ultrasonic vibration knife handle, the problem of heating of the transducer is effectively solved by means of a giant magnetostrictive material of a slice structure and an air cooling system. By the adoption of the knife handle, the machining efficiency can be improved. In addition, the knife handle can be suitable for any knife handle connection standards.
Owner:TSINGHUA UNIV

Capacitive intelligent knife handle system for detection of four-dimensional cutting force

The invention discloses a capacitive intelligent knife handle system for detection of a four-dimensional cutting force. The capacitive intelligent knife handle system mainly comprises a standard knife handle, a capacitive displacement sensor, a lithium battery, a capacitive sensor detection circuit, a signal preprocessing and collecting unit, a signal wireless transmitting module, an outer packaging ring, a sealing cover and a fixing block, wherein a deformation rib structure is formed through grooving at a cylinder part of the lower end of the standard knife handle, the four-dimensional cutting force is computed by utilizing the deformation of a deformation rib, and the deformation is measured by the capacitive displacement sensor. The capacitive intelligent knife handle system for the detection of the four-dimensional cutting force, disclosed by the invention, has the advantages that the structure change of an original knife handle is smaller, the installation and the use of a knife and the catching of a mechanical hand are not influenced, the capacitive intelligent knife handle system has the advantages that the structure is simple, the applicability is strong and the like, the accuracy of detecting the deformation of the deformation rib by utilizing a high-accuracy capacitive micro displacement sensor is higher than the accuracy of detecting the deformation of the deformation rib by utilizing a strain type dynamometer, and the dynamic performance is better.
Owner:HARBIN INST OF TECH

Active compliance end effector for controllable-pitch propeller robot grindingand control method of active compliance end effector

The invention discloses an active compliance end effector for controllable-pitch propeller robotgrinding and a control method. The active compliance end effector comprises a grinding tool, a BT30 knife handle, a grinding electric spindle, brackets for fixing the grinding electric spindle, a force sensor for detecting a normal grinding force, a support for mounting the force sensor, a displacement sensor for detecting deviation of an end position, a support for fixing the displacement sensor, a ball screw for providing axial movement degree of freedom and transmitting torque, a bearing block for supporting and fixing the ball screw, a ball screw nut, a ball screw nut support, an alternating-current servo motor, a flange support, a coupler, linear guide tracks, sliders, a bottom supporting plate and a control system, wherein the servo motor is connected with the ball screw through the flange support and the coupler; and the control system is used for driving the servo motor. The active compliance end effector has the advantages of simple structure, convenience in assembly, high control precision and high response speed; and meanwhile, the grinding tool can be changed automatically.
Owner:HUAZHONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products