Patents by Inventor Zheng TONG

Zheng TONG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20170136593
    Abstract: A clamping mechanism of rotation table device includes a shaft fixing a workpiece to an end portion thereof, a brake disk fixed to the shaft, and a clamping mechanism clamping or unclamping the brake disk by driving a piston. The clamping mechanism includes a plate spring fixed to a rear plate fixed to a casing and a piston and urging the piston in a clamping direction at all times by an elastic deformation restoring force and the plate spring is fixed to the rear plate or the piston through an annular plate.
    Type: Application
    Filed: October 31, 2016
    Publication date: May 18, 2017
    Inventors: Zhizhen XIA, Zheng TONG, Hiroki TEZUKA
  • Patent number: 9254541
    Abstract: A machine tool includes a rotary table on which a workpiece is mounted, a clamping mechanism for clamping the rotary table against rotation, and a sensor for detecting completion of a clamping operation of the clamping mechanism. A numerical controller for controlling the machine tool calculates the time required for actual operations of the clamping mechanism, taking into account beforehand the processing time for processing a feedback signal from a sensor and the time until the next operation of the machine tool. By controlling the clamping mechanism based on the calculated required time, the cycle time of clamping or unclamping operations is shortened.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: February 9, 2016
    Inventor: Zheng Tong
  • Publication number: 20160010796
    Abstract: Provided is a machining tool having a telescopic cover, with a plurality of covers sequentially overlapped and telescopic in the moving direction of the movable portion of the machine tool. The machining includes a lubricant supply unit to supply a lubricant to a slide portion of the telescopic cover.
    Type: Application
    Filed: July 7, 2015
    Publication date: January 14, 2016
    Inventor: Zheng TONG
  • Publication number: 20150367470
    Abstract: A rotary table assembly is provided with a rotary table with a workpiece mounting table on one end of a rotating shaft and a cover covering the rotary table. A seal member is disposed between the cover and the workpiece mounting table, thereby preventing foreign matter, such as chips, from adhering to the rotary table.
    Type: Application
    Filed: June 17, 2015
    Publication date: December 24, 2015
    Inventors: Hiroki TEZUKA, Tomoya ITOU, Zheng TONG
  • Publication number: 20150027686
    Abstract: A crude oil lifting system and a method utilizing a vane pump for conveying a fluid. The crude oil lifting system comprises: an oil pipe and an oil pump connected to the oil pipe. The oil pump is the vane pump. The vane pump is provided with a cylindrical stator. The stator has arranged therein a drive shaft and a rator sleeved onto the drive shaft. The drive shaft is arranged within the stator along the direction parallel to the length of the stator. An intake plate is arranged at the lower end of the stator. A discharge plate is arranged at the upper end of the stator. The intake plate, the discharge plate, and the stator form a cylindrical cavity. The rotor is arranged between the intake plate and the discharge plate. An intake opening for taking in the crude oil is arranged on the intake plate. A discharge opening for discharging the crude oil is arranged on the discharge plate.
    Type: Application
    Filed: October 22, 2012
    Publication date: January 29, 2015
    Inventors: Zhongxian Hao, Zejun Shen, Lixin Zhang, Xiaohan Pei, Quanbin Wang, Zheng Tong, Tongbin Wang, Jingwei Jin
  • Publication number: 20140156057
    Abstract: A controller for a machine tool outputs an operation instruction signal to the machine tool. The machine tool transmits a signal indicating that the instructed operation is compete. The controller determines a response time of operation to be a difference in time between a point in time when the numerical controller outputs an operation instruction signal and a point in time when the numerical controller receives a signal from the machine tool. When the response time of operation exceeds a preset value, the numerical controller determines that a corresponding maintenance component needs to be replaced and informs a user of the need for replacement by means of a display unit.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 5, 2014
    Applicant: FANUC Corporation
    Inventor: Zheng TONG