Patents Assigned to TONGTAI MACHINE & TOOL CO., LTD.
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Patent number: 11119001Abstract: A machine tool health monitoring method which is to use a predetermined plurality of vibration sensors on a plurality of components of a machine tool and to drive motors of the machine tool to excite the machine tool using an electronic device while the health status of the machine tool is good, and then to perform a diagnostic process to obtain a characteristic cluster consisting of a plurality of modals, and then to define the characteristic cluster as a sample health characteristic cluster. The diagnostic process includes the procedures of vibration transmissibility obtaining, singular value decomposition, curve fitting and modal establishing. In addition, excite the machine tool and proceed the diagnosis process to obtain a current health characteristic cluster. Finally, the current health characteristic cluster is compared with the sample health characteristic cluster to judge whether the machine tool is healthy or not.Type: GrantFiled: March 5, 2020Date of Patent: September 14, 2021Assignees: NATIONAL CHUNG CHENG UNIVERSITY, TONGTAI MACHINE & TOOL CO., LTD.Inventors: Chih-Chun Cheng, Yu-Sheng Chiu, Wen-Nan Cheng, Ping-Chun Tsai, Yu-Hsin Kuo, Wei-Jen Chen, De-Shin Liu, Chen-Wei Chuang, Chih-Ta Wu, Wen-Peng Tseng, Wen-Chieh Kuo
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Patent number: 10870237Abstract: A powder supply device (100) for use with powder spreaders, comprising: a fixation base (2), a powder storage unit (3), a powder supply unit (4) and a driving unit (5), wherein the powder supply unit (4) is provided with at least one stirring bar (41) and a powder spreading roller (42); using a design of a stirring bar and the powder spreading roller, powder may be stirred and extruded such that the powder becomes finer, more uniform, and does not cake during powder spreading.Type: GrantFiled: November 15, 2016Date of Patent: December 22, 2020Assignee: TONGTAI MACHINE & TOOL CO., LTD.Inventors: Huaien Kao, Hsinpao Chen, Juihsiung Yen
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Patent number: 10786866Abstract: An inspecting and repairing device of additive manufacturing technology and a method thereof are provided. The inspecting and repairing device has a powder bed unit, a repairing unit, and an inspection unit. The powder bed unit has a powder platform, a powder spreading mechanism and a laser unit. The repairing unit has a processing mechanism. The inspection unit has a camera and a controller. According to an image of the powder platform captured by the camera, the controller can determine whether spreading powders, whether being overcome a powder spreading defect, or whether driving the processing mechanism to repair a surface of a workpiece.Type: GrantFiled: October 27, 2017Date of Patent: September 29, 2020Assignee: TONGTAI MACHINE & TOOL CO., LTD.Inventors: Yi-Hsien Chen, Hsin-Pao Chen, Jui-Hsiung Yen
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Patent number: 10782536Abstract: A laser device for additive manufacturing and an operation method thereof are provided. The laser device has a laser generation unit, a spectroscopic unit, a control unit, and a lens assembly unit. A laser beam is split into two or more beams by disposing the spectroscopic unit and the lens assembly unit. Thus, a roughness of a process surface and a process time can be reduced.Type: GrantFiled: May 24, 2018Date of Patent: September 22, 2020Assignee: TONGTAI MACHINE & TOOL CO., LTDInventors: Chung-wei Cheng, Chun-yu Tsai, Chih-hsiang Yang, Hsin-pao Chen, Jui-hsiung Yen
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Patent number: 10773342Abstract: A rolling type 3D printing device for recycling powders and an operation method thereof are provided. The rolling type 3D printing device has a rolling mechanism, at least one optical module, and a powder conveying module. The rolling mechanism holds a workpiece and receives powders. Cylindrical or cone workpieces can be laminated by the rolling type 3D printing device through the design of the rolling mechanism.Type: GrantFiled: December 27, 2017Date of Patent: September 15, 2020Assignee: Tongtai Machine & Tool Co., Ltd.Inventors: Hsin-Pao Chen, Jui-Hsiung Yen
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Patent number: 10688723Abstract: A powder spreader having automatic powder recovery, comprising: a powder spreading unit (2), a powder collecting unit (3) and a moving unit (4), wherein the powder collecting unit (3) is provided with a base body (31), a working tank (32) and at least one recovery tank (33); powder may be automatically recovered by using a design of the recovery tank and the moving unit.Type: GrantFiled: November 15, 2016Date of Patent: June 23, 2020Assignee: TONGTAI MACHINE & TOOL CO., LTD.Inventors: Huaien Kao, Hsinpao Chen, Juihsiung Yen
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Publication number: 20190091805Abstract: A rolling type 3D printing device for recycling powders and an operation method thereof are provided. The rolling type 3D printing device has a rolling mechanism, at least one optical module, and a powder conveying module. The rolling mechanism holds a workpiece and receives powders. Cylindrical or cone workpieces can be laminated by the rolling type 3D printing device through the design of the rolling mechanism.Type: ApplicationFiled: December 27, 2017Publication date: March 28, 2019Applicant: Tongtai Machine & Tool Co., Ltd.Inventors: Hsin-Pao Chen, Jui-Hsiung Yen
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Publication number: 20190070779Abstract: A 3D printing device for recycling powders and an operation method thereof are provided. The 3D printing device for recycling powders has a base, a processing plate, an optical module, and a powder conveying module. The speed of production process of 3D printed workpieces can be increased, the waiting time in the production process can be reduced, and the process stability can be improved by disposing the powder conveying module.Type: ApplicationFiled: December 28, 2017Publication date: March 7, 2019Applicant: Tongtai Machine & Tool Co., Ltd.Inventors: Hsin-Pao Chen, Huai-En Kao, Wei-Lin Wang, Jui-Hsiung Yen
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Patent number: 10105836Abstract: A processing apparatus with a novel structure where a tool side rotates in relation to a main body side, capable of producing excellent quality transmission of an electrical signal from the tool side to the main body side with a simpler and more compact composition, and capable of driving an ultrasonic transducer provided on the tool side more effectively. A pair of signal coils are disposed between the main body side and the tool side so as to be able to transmit an electrical signal, and a power supply frequency to the ultrasonic transducer provided to the tool side is controlled by a power supply control member. At least one of the signal coils is provided with a coil winding path that reduces noise electromotive force generated due to an effect from power coils provided to the main body side and the tool side.Type: GrantFiled: January 16, 2013Date of Patent: October 23, 2018Assignees: MIE ELECTRONICS CO., LTD., TONGTAI MACHINE & TOOL CO., LTD.Inventors: Shuhei Takazakura, Toshikazu Mukai, Noboru Okuyama, Jui-Hsiung Yen, Hsin-Pao Chen
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Patent number: 10067494Abstract: A hybrid computer numerical control (CNC) machining center and a machining method thereof are provided. The hybrid CNC machining center has at least a cutting tool head, a laser cladding tool head, a laser surface heat treatment tool head, and a computer numerical control unit. The cutting tool head, the laser cladding tool head, and the laser surface heat treatment tool head are alternately installed in a tool holder of the hybrid CNC machining center. Users can accomplish cutting, laser cladding, and laser surface heat treatment operations for a work-piece just in one single machine, so that the work-piece is unnecessary to be moved between different machines. Therefore, the steps and the process time of the machining operations are substantially simplified.Type: GrantFiled: March 17, 2015Date of Patent: September 4, 2018Assignee: Tongtai Machine & Tool Co., Ltd.Inventors: Hsinpao Chen, Huaien Kao, Zongshin Liu, Tsunghsien Tsai, Tingchang Chen, Juihsiung Yen
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Patent number: 9855630Abstract: An electricity supply tool holder for a machining center is provided, and has: a holder body, a stationary coil portion, a rotating coil portion, a lateral fixing portion, and an electrical machinery. The stationary coil portion is provided with a primary coil therein; the rotating coil portion is correspondingly provided with a secondary coil therein; and the lateral fixing portion is fixed on a side of the stationary coil portion used for removably combining with a machining center. When the tool holder is rotated, an external electric power/signal can be transmitted through the lateral fixing portion to the primary coil, then inducing the secondary coil, then the electric power/signal is transmitted to the electrical machinery. Additionally, the lateral fixing portion can be switched into a locked position to temporarily limit rotation, so that it can be used in a machining center of an Automatic Tool Changing (ATC) system.Type: GrantFiled: October 20, 2015Date of Patent: January 2, 2018Assignee: Tongtai Machine & Tool Co., Ltd.Inventors: Huai-En Kao, Chung-Kuang Lin, Jian-Tzung Ou, Hsin-Pao Chen, Jui-Hsiung Yen
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Patent number: 9839983Abstract: A machine tool of high-frequency vibration is provided. A main shaft structure of the machine tool comprises a rotating shaft, the end of which is provided with a tool holder chuck for fixing a tool holder; the upper portion of which is provided with a rotating coil portion; the main shaft structure is correspondingly provided with a stationary coil portion; and the tool holder is provided with a high-frequency vibration module. By non-contact coils, an external electric power/signal can be transmitted into the high-frequency vibration module to avoid a wear phenomenon in a contact-rotating electrode. Because the inductive coil is arranged outside of the tool holder, the manufacturing cost of the tool holder is reduced, and the convenience of changing the tool holder is increased. Moreover, the machining stability and efficiency of the tool holder are improved by a control method of sensing/feedback signals with wireless transmission.Type: GrantFiled: November 6, 2015Date of Patent: December 12, 2017Assignee: Tongtai Machine & Tool Co., Ltd.Inventors: Hsin-Pao Chen, Chung-Kuang Lin, Jian-Tzung Ou, Jui-Hsiung Yen
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Publication number: 20160129542Abstract: A machine tool of high-frequency vibration is provided. A main shaft structure of the machine tool comprises a rotating shaft, the end of which is provided with a tool holder chuck for fixing a tool holder; the upper portion of which is provided with a rotating coil portion; the main shaft structure is correspondingly provided with a stationary coil portion; and the tool holder is provided with a high-frequency vibration module. By non-contact coils, an external electric power/signal can be transmitted into the high-frequency vibration module to avoid a wear phenomenon in a contact-rotating electrode. Because the inductive coil is arranged outside of the tool holder, the manufacturing cost of the tool holder is reduced, and the convenience of changing the tool holder is increased. Moreover, the machining stability and efficiency of the tool holder are improved by a control method of sensing/feedback signals with wireless transmission.Type: ApplicationFiled: November 6, 2015Publication date: May 12, 2016Applicant: TONGTAI MACHINE & TOOL CO., LTD.Inventors: Hsin-Pao Chen, Chung-Kuang Lin, Jian-Tzung Ou, Jui-Hsiung Yen
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Publication number: 20150352713Abstract: A processing apparatus with a novel structure where a tool side rotates in relation to a main body side, capable of producing excellent quality transmission of an electrical signal from the tool side to the main body side with a simpler and more compact composition, and capable of driving an ultrasonic transducer provided on the tool side more effectively. A pair of signal coils are disposed between the main body side and the tool side so as to be able to transmit an electrical signal, and a power supply frequency to the ultrasonic transducer provided to the tool side is controlled by a power supply control member. At least one of the signal coils is provided with a coil winding path that reduces noise electromotive force generated due to an effect from power coils provided to the main body side and the tool side.Type: ApplicationFiled: January 16, 2013Publication date: December 10, 2015Applicants: MIE ELECTRONICS CO., LTD., TONGTAI MACHINE & TOOL CO., LTD.Inventors: Shuhei TAKAZAKURA, Toshikazu MUKAI, Noboru OKUYAMA, Jui-Hsiung YEN, Hsin-Pao CHEN