Class 409/239 - Deflection of cutter spindle

Subclass of Class 409 - Gear cutting, milling, or planing
Definition: Apparatus including provision to modify the apparatus to
No. of patents: 21
Last issue date: 12/21/2010

Number	Title	Issue Date
7854575	Displacement and deflection measuring device for main spindle in machine tool A reference block 30 attached to a housing 20a is moved together with a main spindle 20 to a measurement start position A1, and the reference block 30 is so moved in a Z-axis direction as to across air injected from an air i...	12/21/2010
7283889	Numerical control device, and numerical control method A machine has a tool head which rotates on a C-axis (about the Z-axis) and an A-axis (about the X-axis). A tool length vector is multiplied by a matrix whereby a misalignment component δs-H and the incline error (αs-H, βs-H, γs	10/16/2007
7237991	Machine tool The present invention provides a machine tool capable of reducing residual vibration occurring at the location time, thereby achieving responsiveness to a recent demand for higher acceleration/deceleration speed. The machine tool is configured such that a column ...	07/03/2007
7156590	Quill lock assembly A quill lock assembly for locking a quill of a device such as a drill press is described. The quill lock assembly includes a cam assembly and a handle connected to the cam assembly. The cam assembly is connected to the device, such as with a mounting bracket or the ...	01/02/2007
7134818	Tool-holding system for high-accuracy calibration of holes The invention relates to the field of toolings for high-accuracy finishing through-holes and non-through-holes, such as for example for calibration, lapping operations. More precisely the invention refers to a tool-holding system for high-accuracy calibration of the...	11/14/2006
7064462	Power tools with switched reluctance motor A method of assembling a power tool, a power tool, a method of assembling an electrical device, and an electrical device includes a switched reluctance motor. The electrical device is preferably a hand-held power tool, however, any type of electrical device that inc...	06/20/2006
7024789	Position measuring device with a temperature correction device A position measuring device that includes a first element having a material measure and a temperature measuring unit with a sensor, the temperature measuring unit is unable to be displaced relative to the material measure. A second element having a scanning head, an...	04/11/2006
6579047	Guide and support device for small machine tools, in particular for rotating-mass balancing machines It is provided a support and guide device for small machine tools, in particular for rotating-mass balancing machines, comprising: a base element (2), at least one moving element (3) in engagement with the base element (2), support elements (4) for the mo...	06/17/2003
5992860	Chucking device for mounting a tool on a machine tool and clamping device for the shrink-fit clamping of tools A chucking device for mounting a tool on a machine tool is provided, having a mounting section for mounting the chucking device on the machine tool and a thermally expandable shrink section which comprises a holding section intended to receive the tool in...	11/30/1999
5895181	Dynamic error correcting system in a numerically controlled machine tool A feedrate and travelling distance before the feed orientation of a feed drive axis is obtained by analyzing NC programs when carrying out a machining action, and the lost motion correcting quantity corresponding to said feedrate and travelling distance i...	04/20/1999
5833408	Radial load compensating apparatus and method for axially articulatable members An apparatus and method for compensating a radial load between relatively axially articulatable inner and outer members, which in the exemplary embodiment are a spindle cartridge and spindle housing of a slip spindle drill assembly. The apparatus includes...	11/10/1998
5795112	Method for compensating a component of a machine tool for displacement caused by heat A temperature measuring device measures the temperature of a main shaft as a numerical value based on the outputs from temperature sensors. A temperature recorder stores the value as time series data. When the heat-induced displacement of the main shaft i...	08/18/1998
5779405	Thermal displacement correcting apparatus for machine tool A thermal displacement correcting apparatus suitable for a machine tool (1) provided with a mechanism for feeding a main spindle (2) is disclosed. Three magnetic flux generating bodies 61 to 63 are fixed to the main spindle; a magnetic sensor (7) is fixed...	07/14/1998
5292213	Coupling device for high-speed rotation A coupling device for high speed rotation applications comprised of a first member about a longitudinal axis having a collar integrally attached to a solid base and a second member about a longitudinal axis having a sleeve which is receivable within the c...	03/08/1994
5121580	Jig assembly for a tool support A jig assembly for mounting a tool is disclosed in which the tool is held generally stationary in the jig. The jig assembly is used in a machining process in which the workpiece is mounted at the end of a movable robot arm and is manipulated with respect ...	06/16/1992
4815903	Auxiliary support bearing for a milling machine head An auxiliary bearing apparatus for selective attachment to milling machines of the Bridgeport type, said machines having a head which supports a quill that is longitudinally movable with respect to a fixed housing. A tool-holding spindle is rotatable with...	03/28/1989
4808048	Method and apparatus for error compensation A method and apparatus for compensating displacements of a machine point due to temperature changes, such as the temperature-related displacement of a work spindle axis of a milling machine relative to a machine reference point. The measurement values of ...	02/28/1989
4614467	Cam milling machine A cam milling machine having a headstock and a tailstock, which are fixed on a bed and are horizontally spaced from each other for carrying at a time two camshafts to be rotatable respectively on their axes which extend horizontally in parallel relation w...	09/30/1986
4487536	Distributing device of the pressure exerted by a machine-tool carriage on its slides An apparatus for making the pressure exerted by a machine-tool carriage on its slide uniform. Cams which load springs are used to apply pressure to the carriage in those regions subject to less pressure depending upon the position of the carriage. Distort...	12/11/1984
4334811	Spindle extension, especially for drilling and milling machines A spindle extension, especially for drilling and milling machines, is required when machining large size workpieces. In order to enable the automatic tool change also when there is mounted the spindle extension with the available tools, the inventive spin...	06/15/1982
4178834	Machine tool having deflection compensation for tool support arm An improved machine tool includes an extendible ram or tool support arm. As the ram is extended, the outer end portion of the ram deflects downwardly under the influence of gravity. To compensate for the deflection of the ram, the angular orientation of t...	12/18/1979

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Class 409/239 - Deflection of cutter spindle