摘要:
Provided is a new method of measuring involute gear tooth profile that differs from the base circle method and enables measurement of super-large gears without increasing the size of the tooth profile measuring machine and without increasing shift of the machine center of gravity. Measurement is performed during simultaneous θ axis control for rotating a test gear around the gear axis, X axis control for reciprocating a probe toward and away from the gear axis, and Y axis control for reciprocating the probe perpendicular to the X axis, thereby moving the probe along a line of action.
摘要:
In a flat wave gear device, there is determined a rack-approximated movement locus Lc1 of a flexible externally toothed gear with respect to an S-side rigid internally toothed gear accompanying rotation of a wave generator. (ρOPT is a minimum value of the radius of curvature of the movement locus Lc1, and is determined from an evolute e of the movement locus Lc1. A convex arc having a radius ρ (ρ≦ρOPT) is used in a main part of a tooth profile of the flexible externally toothed gear. A parallel curve c that is set apart from a movement locus Lc2 by the arc radius p is used on a main part of a tooth profile to be generated on the S-side rigid internally toothed gear. The movement locus Lc2 accounts for the actual number of teeth, and is obtained from a center A of a convex arc of the flexible externally toothed gear being drawn with respect to the rigid internally toothed gear. In a flat wave gear device that is provided with a flexible externally toothed gear having a non-positive deflection (κ≦1) tooth profile, a tooth depth of the flexible externally toothed gear can be increased, whereby ratcheting torque is increased and meshing can occur continuously over an entire range of a movement locus; and a load capacity of the flat wave gear device is increased.
摘要:
A high-precision cog measuring instrument having as its operating axes an X-axis, a Y-axis, and a Z-axis, which are at right angles to each other, the device moving an object to be measured parallel to the X, Y, and Z axes, and in addition, rotating it around the Z-axis, while measuring the external shape of the object to be measured. The device including a main body, having a base, secured to an installation face where the high-precision cog system measuring instrument is to be installed; a Y-direction moving table, which is mounted on the base and can move in one horizontal direction; and an X-direction moving table, which supports a measuring element and can move in another horizontal direction at a right angle to the Y-direction moving table; a body for supporting the object to be measured having a section for supporting the object to be measured, which having a section for supporting the object to be measured, which can move in the Z-axial direction and rotate around the Z-axis.
摘要:
A device and method for gear checking measurement of a gear employs a pair of measuring pins or balls of predetermined outer diameter which are placed in tooth spaces on diametrically opposite sides. The measuring pins or balls are held in the tooth spaces by a holding element which is fixedly connecting to and spaced from each measuring pin or ball in a direction along the gear axis so that an accurate measurement can be taken of the overall external diameter over the measuring pins. In one version, the holding element is a separate magnet or pair of magnets coupled to a respective measuring pin or ball. In another version, a holder frame holds a pair of measuring pins or balls at circumferential positions with a pre-counting spacing of gear teeth on diametrically opposite sides of the gear.
摘要:
The apparatus for measuring the parameters of an axle gear includes an attachment mechanism for providing a surface parallel to the gear axis and positioned at a distance equal to the base circle radius from the gear axis. A displacement measuring device is positioned with the flat lower surface in contact with the attachment mechanism surface. Extending from the side of displacement measuring device is a probe, the probe positioned to be in the same plane as the flat lower surface and extending parallel to the axis of the gear. The probe of the displacement measuring device is placed in contact with a surface of a gear tooth and the displacement device is rotated without slipping on the attachment mechanism surface. When the displacement measuring device is rotated, the probe will be displaced only within preselected limits when in contact with a gear tooth surface between the top of the tooth and the root of the tooth for an acceptable gear. The displacement mechanism can include a projection for contacting a predefined surface of the attachment mechanism which will prevent slipping of the displacement measuring device on the attachment base circle radius during rotation. An extension can be coupled to the displacement measuring device to provide a second probe for block span measurements.
摘要:
An instrument for sensing the profile of an elongate tooth of a corrugation roll or gear wheel or the like. A carriage supports an axially movable stem which is operably connected to an indicator element. The stem has an engagement portion which engages a tooth of a corrugation roll as the carriage is moved along the roll. The carriage is provided with runners or slide elements which travel within troughs or valleys, which separate the teeth of the corrugation roll. Preferably, a magnet member is attached to the carriage and is positioned adjacent the surface of the corrugation roll and maintains the position of the carriage with respect to the roll as the carriage is moved along the roll.
摘要:
A length-measuring probe for gear measurement. The probe comprises a planar four-bar-guide with four hinges, each formed by plate springs; a stylus linearly guided by the bar-guide; a device for measuring the displacement of the stylus; and an additional coil spring which is adjustably arranged between the respective bars of each hinge in such a way that the plate springs are prestressed by a tensile force which decreases when the plate springs are deflected in either direction.
摘要:
The present invention comprises provision for automatic, tapecontrolled, precision operation of a machine for grinding toothed face members, such as couplings and clutches, and of large size, wherein there will be a succession of different machine functions, including periodic dressing of a grinding wheel and rough cutting of the work throughout several passes in the rough grinding stage, followed by another dressing function, and then a float grinding stage and subsequently a finish grinding stage utilizing, a corrective index system for precisely intermittently indexing the workpiece through equal, predetermined angular distances.
摘要:
A system is disclosed for measuring a feature of a component. The system may have a probe with a tip, and a sensing element configured to generate signals associated with a proximity of the tip to the feature. The system may also have an actuator configured to move the probe relative to the component, and a controller in communication with the sensing element and the actuator. The controller may be configured to generate a deviation report based on the signals, and to filter information from the deviation report according to wavelength into a plurality of deviation categories corresponding to specification requirements of the component. The plurality of deviation categories may include at least a waviness category. The controller may also be configured to determine a change to a process used to fabricate the component based on the information from the deviation report filtered into the waviness category.