Patents Assigned to Precision Machinery Research & Development Center
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Patent number: 10942074Abstract: A method for monitoring the spindle preload amount of a spindle by: S1 obtaining a spindle preload amount through a PPC Preload Analyzer; and S2 obtaining an axial force sensor output of the spindle through an axial force sensor, wherein the axial force sensor output is calibrated using the spindle preload amount that is obtained through the PPC Preload Analyzer; establishing a relationship between the spindle preload amount and the axial force sensor output, then regarding the axial force sensor output as the spindle preload amount, and then monitoring the spindle preload amount by monitoring the axial force sensor output.Type: GrantFiled: October 9, 2018Date of Patent: March 9, 2021Assignee: Precision Machinery Research & Development CenterInventors: Tadao Tsuneyoshi, Peng-Jui Chen, Chi-Cheng Kuo, Tung-Yi Lu, Hsing-Chieh Huang
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Patent number: 10335911Abstract: A tool holder assembly includes a holder body, a pull stud and a flow adjustment unit. The holder body has a holder coolant channel extending through a first end and a second end thereof. The pull stud has an insertion portion, a grip portion, and a longitudinal passage extending through the insertion portion and the grip portion, and fluidly communicating with the holder coolant channel. The flow adjustment unit includes a connection tube that extends into the longitudinal passage and projects outwardly from the grip portion, a resilient member urging the connection tube to project outwardly from the grip portion, and a flow guide channel extending through the connection tube and fluidly communicating with the holder coolant channel.Type: GrantFiled: December 29, 2017Date of Patent: July 2, 2019Assignee: Precision Machinery Research and Development CenterInventors: Hsing-Chieh Huang, Chi-Cheng Kuo, Ching-Kuo Wu
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Patent number: 10197146Abstract: A reducer module with real-time torque sensing includes two harmonic reducers that are installed in opposite directions in a casing and located in front of and behind a ring, respectively; and a plurality of torque sensors mounted on ribs of the ring for measuring a torque value. The ring's inner circle, the front harmonic reducer, and the rear harmonic reducer are centrally bored to form a channel, through which wires of the torque sensors go out the reducer module and are prevented from torsion and stretch during operation of the reducer module.Type: GrantFiled: December 28, 2016Date of Patent: February 5, 2019Assignee: Precision Machinery Research & Development CenterInventors: Chun Tsun Lin, Chia Yu Cheng, Jia He Chen
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Patent number: 10008905Abstract: A hollow motor module as a combination of a motor and a speed reducer is disclosed. The motor includes an outer stator, a first rotor and a plurality of second rotors. The first rotor is peripherally provided with a first coil and is installed in the outer stator. Each of the plural second rotors is peripherally provided with a second coil and is installed in the first rotor. The second rotor has a coupling portion extending out of the first rotor. The outer stator has first magnets that work with the first coil to magnetically excite the first rotor to rotate. The first rotor has second magnets for the second rotors. The second magnets work with the corresponding second coils to magnetically excite the second rotors to rotate synchronously. The speed reducer is connected to the coupling portions of the second rotors.Type: GrantFiled: October 27, 2015Date of Patent: June 26, 2018Assignee: Precision Machinery Research & Development CenterInventors: Che Chien Chen, Han Pei Wang
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Patent number: 9506555Abstract: A hollow-type planet speed reducer includes a body. The body includes at least one driving gear driven by a power input source. The driving gear is connected to a transmission gear, and the transmission gear is connected to a first gear. Based on this, the output rotation speed can be reduced by the incorporation of the driving gear, the transmission gear and the first gear. Besides, a tubular member passes though the body and has an accommodating space to receive wires of the hollow-type planet speed reducer.Type: GrantFiled: December 23, 2014Date of Patent: November 29, 2016Assignees: Precision Machinery Research & Development Center, Delta Electronics, Inc.Inventors: Che Chien Chen, Jun Huang Lee, Han Pei Wang, Chin Hsiung Tsai, Chi Wen Chung
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Patent number: 9363307Abstract: A method of linking to and monitoring machining devices through the cloud service enables a user to use a cloud app on the cloud to link to machining device at a specific client through a cloud service. The cloud service has API function commands for the cloud app to call and use. The client has an integrated execution module to connect to the machining device. The integrated execution module on the client links to the cloud service through a cloud connection module.Type: GrantFiled: August 2, 2013Date of Patent: June 7, 2016Assignee: Precision Machinery Research & Development CenterInventor: Sheng-Jhe Chen
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Publication number: 20150314439Abstract: An end effector controlling method includes the steps of obtaining the 3D physical information of an object, finding an appropriate sucking position by a vector programming method, generating a control command to control the sucking position of an end effector. The vector programming method includes the steps of creating a virtual platform and creating a virtual object on the virtual platform from the obtained 3D physical information, obtaining reference planes from each reference axis, computing a curve of surface interactions of each reference plane and the virtual object separately, and searching a sucking position on each curve according to a reachable range of a finger. of the end effector.Type: ApplicationFiled: May 2, 2014Publication date: November 5, 2015Applicant: PRECISION MACHINERY RESEARCH & DEVELOPMENT CENTERInventors: PEI-JUI WANG, CHIEN-PIN CHEN
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Publication number: 20150258566Abstract: An ultrasonic spray coating system includes a piezoelectric transducer, a spray-forming head and a liquid supply applicator. The spray-forming head has an air-entrainment mechanism. The air-entrainment mechanism has an air-stream channel that is formed inside a main body and a bottom body of the spray-forming head for connection with a high-pressure air source, and an air vent formed in a bottom surface of the bottom body and communicates with the air-stream channel. A length of the air vent in a horizontal direction is greater than that of the air-stream channel. The liquid supply applicator has a discharge orifice, and a control component for controlling the size of the discharge orifice.Type: ApplicationFiled: March 13, 2014Publication date: September 17, 2015Applicant: PRECISION MACHINERY RESEARCH & DEVELOPMENT CENTERInventors: Hao-Chiang Cho, Jian-Lin Wu, Wei-Jen Lo, Wang-Lin Liu, Hsien-Feng Liu
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Patent number: 8956354Abstract: The present invention relates to a non-stick coated electrosurgical diathermy instrumentation, comprising: a handle portion; an isolation tube, connected to the handle portion by one end thereof; an instrument portion, connected to another end of the isolation tube, wherein an anti-sticking layer is formed on the surface of the instrument portion; and an electrode, connected to the handle portion and an external conductive member. In the present invention, the instrument portion is able to generate heat when the conductive member conducts electricity to the instrument portion.Type: GrantFiled: July 13, 2012Date of Patent: February 17, 2015Assignees: Advanced Medical Design Co., Ltd., Precision Machinery Research & Development CenterInventors: Yen-Ming Yeh, Kuei-Huang Wu, Chun-Da Ciou
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Publication number: 20150039750Abstract: A method of linking to and monitoring machining devices through the cloud service enables a user to use a cloud app on the cloud to link to machining device at a specific client through a cloud service. The cloud service has API function commands for the cloud app to call and use. The client has an integrated execution module to connect to the machining device. The integrated execution module on the client links to the cloud service through a cloud connection module.Type: ApplicationFiled: August 2, 2013Publication date: February 5, 2015Applicant: PRECISION MACHINERY RESEARCH & DEVELOPMENT CENTERInventor: SHENG-JHE CHEN
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Publication number: 20140208883Abstract: An arm assembly includes three first arm units connected to a base frame of a parallel robot, a bracket unit disposed below and spaced apart from the base frame, and three second arm units. Each of the second arm units includes a first axle sub-unit journaled to a respective one of the first arm units, a pair of second axle sub-units connected to the first axle sub-unit, a fourth axle sub-unit journaled to the bracket unit, a pair of third axle sub-units connected to the fourth axle sub-unit, and a pair of rod members. Each of the rod members is connected to a respective one of the second axle sub-units and a respective one of the third axle sub-units.Type: ApplicationFiled: August 23, 2013Publication date: July 31, 2014Applicant: Precision Machinery Research & Development CenterInventors: Chun-Tsun Lin, Zi-Min Yi
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Publication number: 20140197652Abstract: An end effector module includes a palm base and robotic fingers extended from the palm base. Each robotic finger is composed of four joint shafts pivotally coupled with one another, and one of the four joint shafts, namely a start joint shaft, has a driving mechanism for driving a corresponding robotic finger to rotate, and each joint shaft has a driving mechanism to drive a next corresponding joint shaft to turn pivotally and bend with respect to other corresponding joint shafts, so that each robotic finger is module with four degrees of freedom for fine-tuning the position of a suction device installed at an end joint shaft, and the suction device can move along the normal direction of a suction point selected on the surface of a clamped object to achieve the effect of clamping and sucking an object securely without the risk of being loosened easily.Type: ApplicationFiled: January 15, 2013Publication date: July 17, 2014Applicant: PRECISION MACHINERY RESEARCH & DEVELOPMENT CENTERInventor: PRECISION MACHINERY REAEARCH & DEVELOPMENT CENTER
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Publication number: 20140069323Abstract: A method for forming a metal chalcogenide includes: (a) providing a preliminary precursor solution including a first precursor for an elemental metal of Ag, Au, Al, In, Ga, or Tl, a second precursor for a chalcogen element of Se, S, or Te, and a liquid solvent; (b) heating the preliminary precursor solution under an inert ambient, such that the first precursor reacts with the second precursor to obtain a metal chalcogenide precursor that is in an amorphous phase; (c) removing the liquid solvent from the metal chalcogenide precursor; and (d) heating the metal chalcogenide precursor under a hydrogen-containing gas pressure so as to convert the metal chalcogenide precursor into a single crystal phase metal chalcogenide.Type: ApplicationFiled: September 12, 2012Publication date: March 13, 2014Applicant: Precision Machinery Research & Development CenterInventors: Yen-Chau WANG, Hsiao-Chun CHU, Wang-Lin LIU
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Publication number: 20140018801Abstract: The present invention relates to a non-stick coated electrosurgical diathermy instrumentation, comprising: a handle portion; an isolation tube, connected to the handle portion by one end thereof; an instrument portion, connected to another end of the isolation tube, wherein an anti-sticking layer is formed on the surface of the instrument portion; and an electrode, connected to the handle portion and an external conductive member. In the present invention, the instrument portion is able to generate heat when the conductive member conducts electricity to the instrument portion.Type: ApplicationFiled: July 13, 2012Publication date: January 16, 2014Applicants: PRECISION MACHINERY RESEARCH & DEVELOPMENT CENTER, TOP-BOUND ENTERPRISE CO., LTDInventors: Yen-Ming Yeh, Kuei-Huang Wu, Chun-Da Ciou
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Publication number: 20130310950Abstract: A method of simultaneously connecting controllers of different branded manufacturing machines applied in a computer system. The computer system includes an integrated running module, a user interface interacted with the integrated running module, a plurality of application program interfaces integrated in the integrated running module and communicated with the controllers of specific brands respectively, such that the integrated running module can be connected to the controller corresponding to each of the application program interfaces at the same time. The method includes the steps of selecting the manufacturing machine to be connected through the user interface, producing a thread by the integrated running module according to the application program interface corresponding to the controller of each manufacturing machine, and retrieving required information from the corresponding controller by the integrated running module through each thread.Type: ApplicationFiled: May 15, 2012Publication date: November 21, 2013Applicant: PRECISION MACHINERY RESEARCH & DEVELOPMENT CENTERInventors: FENG-CHING CHIANG, KO-CHANG YAO, SHENG-JHE CHEN
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Patent number: 8573663Abstract: A finger-gesticulation hand device includes a base frame representing a metacarpal part of the human hand, and at least three digits mounted on the base frame and appearing to be a thumb and at least two fingers. Each digit has at least two phalange portions respectively linked by two joints which permit a flexing movement of the phalange portions between extended and flexed positions. An actuating cord passes through each digit and is actuated by a solenoid actuator unit to pull the phalange portions of the respective digit to the flexed position. The hand device is simple in construction and capable of making hand gestures in a simple manner.Type: GrantFiled: April 30, 2012Date of Patent: November 5, 2013Assignee: Precision Machinery Research & Development CenterInventors: Rong-Bin Lin, Ying-Lung Lin, Bo-Yi Chou, Che-Hau Wu
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Patent number: 8573091Abstract: A compliant mechanism includes a first unit, a second unit, at least one elastic member and a driver for driving the elastic member to rotate through a predetermined angle. The first and second units collectively define a passage about which the second unit is rotatable relative to the first unit. The elastic member has a plate and first and second shafts which are coaxially connected to two opposite ends of the plate respectively and rotatably connected with the first and second units respectively. The elastic member is rotatable about a co-axis of the first and second shafts and elastically deformable when the second unit rotates relative to the first unit. The elastic member can change its resistance to the rotation of the second unit by rotating; therefore the compliant mechanism has a great safety upon receiving load and is widely applicable in many fields.Type: GrantFiled: August 29, 2011Date of Patent: November 5, 2013Assignee: Precision Machinery Research Development CenterInventors: Che-Chien Chen, Tzu-Min Yi, I-Ping Chang, Cheng-Wei Tung
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Publication number: 20130285404Abstract: A finger-gesticulation hand device includes a base frame representing a metacarpal part of the human hand, and at least three digits mounted on the base frame and appearing to be a thumb and at least two fingers. Each digit has at least two phalange portions respectively linked by two joints which permit a flexing movement of the phalange portions between extended and flexed positions. An actuating cord passes through each digit and is actuated by a solenoid actuator unit to pull the phalange portions of the respective digit to the flexed position. The hand device is simple in construction and capable of making hand gestures in a simple manner.Type: ApplicationFiled: April 30, 2012Publication date: October 31, 2013Applicant: PRECISION MACHINERY RESEARCH & DEVELOPMENT CENTERInventors: Rong-Bin Lin, Ying-Lung Lin, Bo-Yi Chou, Che-Hau Wu
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Publication number: 20130168521Abstract: A ball holding mechanism comprises a base with a central axis disposed from bottom to top with an urging block, an elastic element, and a stopping block. The surrounding of the base is pivotally provided with several holding arms, each of which has a transmission end and a holding end. The transmission end urges against the bottom surface of the urging block. By using the lever principle, the urging blocks are controlled by an adjusting mechanism to make a downward displacement along the central axis to push the transmission ends so that the holding ends perform a holding action while the elastic element keeps flexibility after the ball is held. A pivoting base can rotate in the horizontal and longitudinal direction on the holding arm through two horizontal and longitudinal shafts pivotally mounted on the holding end.Type: ApplicationFiled: December 28, 2011Publication date: July 4, 2013Applicant: PRECISION MACHINERY RESEARCH & DEVELOPMENT CENTERInventors: CHE-HAU WU, YING-LUNG LIN, HSIEN-FENG LIU
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Patent number: 8377350Abstract: A method for controlling temperatures in hot runners of a multi-cavity injection mold, a warning method, and a control system based on those methods are provided, in which a temperature sensor is positioned at the same location as each of the cavities of the mold, one of the cavities is chosen as a standard cavity, and a standard filling time is defined. Besides, in every injection cycle, a calculating and controlling module is to calculate the differences between the standard filling time and the filling times of the cavities, and according to the differences, the temperatures in the hot runners may be adjusted by a temperature-adjusting device and a warning device may be started. So, the volumetric filling of the cavities can be balanced very quickly, the process can avoid fluctuations of external environment so as to reduce the time for product development, and the quality of production can be maintained.Type: GrantFiled: January 31, 2011Date of Patent: February 19, 2013Assignee: Precision Machinery Research Development CenterInventors: Jui-Wen Chang, Chih-Hsiung Chung, Shin-Hung Chen, Yi-Shu Hsu