| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 082148000 | Tailstock | 8 |
| 20090000436 | Mechanised tailstock assembly for a lathe - A lathe has a bed, a rack and a mechanized tailstock assembly. The bed has a track having a chamber and a slot. The rack is connected securely to the bed. The mechanized tailstock assembly is movably mounted to the bed and has an outer guide, two moving guiding brackets and a drive device. The outer guide is movably mounted on the bed aligning with the slot. The guiding brackets are respectively connected to the outer guide, extend into the chamber of the track and each guiding bracket has a guide wheel. The drive device is connected securely to the outer guide, engages with the rack and has a casing, a drive axle and a drive wheel. The mechanized tailstock can be moved simply and easily and accurately using the drive device and the guide brackets prevent it from falling away from the surface. | 01-01-2009 |
| 20090199685 | TAILSTOCK CONTROL DEVICE - A tailstock control device supports an object to be machined by driving and controlling a servo motor which drives a driving system of a tailstock having a spring member in forward and backward directions, to cause a tailstock center connected to the tailstock to contact a center hole of the object to be machined. The tailstock control device comprises a limit torque value calculating unit which calculates, as a limit torque value (Tm), a drive torque value of the servo motor necessary for supporting the object to be machined, and a servo control unit which drives and controls the servo motor to attempt to move the tailstock at a tailstock movement velocity (Vs) which is set in advance, until an output torque value (Tr) of the servo motor reaches the limit torque value (Tm). The limit torque value (Tm) is calculated by subtracting, from the support thrust (Fa) necessary for supporting the object to be machined, an excessive thrust Fs which is calculated based on the tailstock movement velocity (Vs). | 08-13-2009 |
| 20110283846 | Tailstock Device for a Lathe - A tailstock device for a lathe includes a carrier defining an accommodation space for accommodating a hub mount. The hub mount is turnable relative to the carrier and has two angularly displaced stage posts extending radially and outwardly for mounting first and second holders, respectively. By turning of the hub mount, a selected one of the holders is moved to a working position to aligned with a longitudinal axis of a workpiece held thereby. The tailstock device can hold a variety of workpieces, and allow adjustment of the angle and position of a workpiece held thereby. | 11-24-2011 |
| 20120011972 | TAILSTOCK DEVICE - A control panel | 01-19-2012 |
| 20120144967 | TAIL SPINDLE OF LATHE INCLUDING OIL HYDRAULIC CIRCUIT FOR THRUST COMPENSATION - The present invention relates to the trail spindle of a lathe including an oil hydraulic circuit for thrust compensation, wherein lathe turning operations on a processing object can be performed always accurately by preventing the processing object from being swung and the shape of the processing object from being deformed, in such a manner that necessary thrust is generated by using an oil hydraulic cylinder and a pressure reducing and relieving valve without using the existing method of moving a tail spindle using a screw and the oil hydraulic circuit automatically performs thrust compensation (i.e., maintains constant thrust) according to a change in the length of the processing object during lathe turning operations. | 06-14-2012 |
| 20150328687 | Moving Type Tail Stock - A tail stock moving mechanism, in which a tail stock that holds a work with a predetermined pressure force is moved by a ball screw and in which control required for holding the work with the predetermined pressure force is implemented, is accomplished in a predetermined order wherein, the tall stock | 11-19-2015 |
| 20160089725 | Tailstock Device - A tailstock device includes a lower transport unit, a base seat, and a tool unit. The lower transport unit includes a lower transmission mechanism that has a lower leadscrew adapted to be rotatably installed on a bed of a lathe machine and extending in a lengthwise direction. The base seat threadedly engages the lower leadscrew and is driven movably by the transport unit along the lower leadscrew. The tool unit is mounted on the base seat, is movable relative to the base seat in a crosswise direction transverse to the lengthwise direction, and has a lathe center adapted to point toward a headstock of the lathe machine and a carriage adapted to be mounted with a deep-hole drilling tool. The carriage and the lathe center are arranged in the crosswise direction. | 03-31-2016 |
| 20160184901 | TAILSTOCK FOR MACHINE TOOLS - A tailstock includes a main body, a lathe center unit arranged in a hollow hole of the main body, a sliding base coupled with the main body and having a slider configured at a side thereof for pairing a slide rail, and a clamping unit configured in the sliding base. The clamping unit for increasing clamping force of the tailstock further includes a connection plate having at least one positioning hole to connect the main body, at least one hydraulic rod bridging the slider and the main body, a plurality of loading devices ring-set about the hydraulic rod, and a plurality of sleeves ring-set with the corresponding loading devices. | 06-30-2016 |
