An ultrasonic machining module that includes an ultrasonic transducer, wherein the ultrasonic transducer is adapted to receive a machining tool and a vibration-isolating housing adapted to be both compatible with a machining system and to receive the ultrasonic transducer therein, wherein the housing further includes at least one modification for isolating all vibrations generated by the ultrasonic transducer when the device is in operation except axial vibrations transmitted to the machining tool, thereby preventing unwanted vibrations from traveling backward or upward into the machining system.

An automotive assembly line tool system and method utilizing a heat-shrinkable bumper disposed around a portion of an assembly line tool for absorbing kinetic energy between the portion of the tool and a work-piece on an assembly line. The bumper may be a chemically cross-linked polyolefin heat-shrinkable material having a shore D hardness of 42 or less after being heat-shrunk. The bumper may be a tubular bumper that has a continuous outer surface around its circumference and a heavy wall that is highly split-resistant. The bumper may have a life term of at least one year in an automotive assembly line environment. By protecting the tools and equipment, chips and scratches on a work-piece on the assembly line may be reduced.

A device (1) for holding a tool (3), and the device (1) has a cavity (2) for the tool (3) and at least two channels (8) designed to allow the passage of a lubricant. Each channel has an inlet opening (7) and an outlet opening (8) for the lubricant. The at least two channels (8) are helically formed around the bore (2) and have a cross-section which increases in size from the Inlet opening (7) to the outlet opening (8).

A shrink-fit chuck having a receiving body, a receiving opening for a tool shank, arranged in the receiving body, an accumulation and collection chamber arranged in the front region of the receiving opening and at least one coolant supply channel leading to the accumulation and collection chamber. The accumulation and collection chamber is delimited to the front by a ring bar arranged at the front end of the receiving opening. The internal diameter of the ring bar is adjusted to the internal diameter of the receiving opening in such a manner that as small an annular gap as possible exists between the ring bar and the tool shank. A plurality of outlet openings are provided in the ring bar for discharging to the outside a coolant routed via the coolant supply channel into the accumulation and collection chamber.

The invention relates to a tool holding device comprising a tool holding body for securing, in a fixed manner, a rotary tool comprising a shaft, provided with a clamping section and a receiving opening for the shall of the tool, a coolant feeding device for pressurized fluid, at least one coolant guiding device for guiding the coolant into a clamped tool shaft. The coolant guiding device is designed as at least one flat groove on an inner side of the receiving opening, joining to the front side on a free end of the tool holding body and directly adjacent to the tool shaft in the surroundings of the tool holding device or a coolant storing chamber and or collecting chamber is provided in the region of the free end of the tool holding body, to which the at least one coolant guiding device joins. The coolant storing chamber and or collecting chamber is connected by means of an annular gap to the surroundings of the tool holder device. The coolant storing chamber and/or collecting chamber and the annular gap are defined at least partially by the work shaft.

A closed-loop machining system that includes a rotating spindle assembly having a body, a tool holder connected to the body, an ultrasonic machining module connected to the tool holder, and a power supply for powering the module; a processor for controlling the operation of the closed-loop machining system; a safety and compatibility bridge linking the ultrasonic machining module to the processor, wherein the safety and compatibility bridge further includes an electrical connection between the ultrasonic machining module and the processor; and at least one microprocessor located in or associated with the ultrasonic machining module for enabling and processing communication between the ultrasonic machining module and the processor.

A tool holder includes a receiving body, an interface at the rear for receiving the tool holder in a machine tool, a receiving section at the front for the tool, and a coolant bore arranged between the interface and the receiving section and by which coolant is conducted from the interface to the receiving section. The coolant bore has a first region with an adjoining second region. A coolant tube is arranged in the first region of the coolant bore. In the direction of the receiving section, between the coolant tube and the second region of the coolant bore, a cavity is formed in the receiving body or in the first region. A bridging element through which the coolant can flow and which seals the coolant flow in relation to the cavity is arranged in the cavity between the coolant tube and an interface-side end of the second region.

A shrink-fitting apparatus and method for the automated shrink-fitting a tool into and out of a tool holder, and a conveying box for tool holders and/or tools. The tool may be a rotary tool, such as a milling cutter, a drill, or the like. The tool holder may be a shrink-fit receptacle. The apparatus has a first multiaxial handling apparatus for transferring tool holders and tools in the shrink-fitting apparatus. Accuracy is ensured for loading the tool holder with tools by way of shrink-fitting in an automated overall process for automated production of workpieces, by providing the shrink-fitting apparatus with a second, automatically displaceable handling apparatus. The handling apparatus has a uniaxial linear drive for automatically displacing the tool along one axis (Z axis) relative to the tool holder during the shrink-fitting and/or removal operation.

A tool holder is configured for rotation about a tool holder axis of rotation defining an axial direction. The tool holder, at one axial longitudinal end thereof, has a tool section with a tool-receiving formation for receiving a tool and, at the opposite axial longitudinal end, has a coupling section with a coupling formation for torque-transmitting coupling to a machine spindle of a machine tool. A measuring apparatus is configured for acquiring data relating to the operation of the tool holder. The measuring apparatus has a sensor, in particular an acceleration sensor, with at least two measurement axes. The two measurement axes are oriented substantially radially with respect to the tool holder axis of rotation.

A tool holder (e.g., shrink fit adapter) with fluid directing passages includes a shank and a fluid/coolant directing structure including one or more nozzles fluidically connected to feeder channels of the shank. The one or more nozzles each include an inner wall and an outer wall configured/shaped to direct fluid/coolant flow both radially inwardly and longitudinally distally and/or to variably modulate fluid/coolant flow around a nozzle outlet of or provided by the nozzle(s) in relation to a longitudinal central axis of the shank. The fluid/coolant directing structure incorporates one of more of: a ring of peripherally located nozzles having geometries/orientations configured to focus and direct thin sheets of fluid/coolant both radially inwardly and distally longitudinally; manifolds for directly feeding nozzle inlets of distally located nozzles; and a nozzle provided by approximately sinusoidally varying surfaces circumferentially disposed about a tool receiving recess of the tool holder for correspondingly variably modulating fluid/coolant flow direction through and exiting from the nozzle.