National Formosa University

National Taiwan University

Tung-Hsien Hsieh

Wen-Yuh Jywe

Yu-Wei Chang

Chien-Hung Liu

Chia-Ming Hsu

Sen-Yi Huang

Tung-Hui Hsu

Ying-Chien Tsai

Hung-Shu Wang

Yi-Tsung Li

Yun-Feng Teng

Yung-Chuan Huang

Jheng-Jhong Zeng

Pin-Wei Lu

Ching-Ying Chiu

Yen-Chieh Wang

Chin-Hui Huang

Chia-Hung Chen

Tung-Hsing Hsieh

Zhong-Liang Hsu

Yung-Yi Huang

Ming-Sung Hsieh

Tung-hsing Hsieh

Yu-wei Chang

A drive system thermal temperature rise test and compensation system. The system has an optical non-contact type sensing head mounted on a main shaft of a machine tool, and a sensing center is formed in the center of the sensing head. A platform driven by a transmission device of the machine tool is provided with plural ball lens devices, and a temperature sensor for transmitting temperature data externally is further provided on the transmission device. After the machine tool sequentially records an original point coordinate for each ball lens center by using the sensing head, the sensing head is cyclically and sequentially moved to the original point coordinate of each ball lens, so as to measure a displacement error between the sensing center and the ball lens center resulted from thermal shifts of the transmission device, as well as capable of measuring multiaxial errors and using various axial temperatures for compensation.

Drive system thermal temperature rise test and compensation system

A many-to-many state identification system of equipment names broadcasted from Internet-of-Things comprises IoT nodes and IoT mobile devices connecting the IoT nodes wirelessly. Each IoT node receives the sensed value of transducer on a machine element, determining whether the sensed value of transducer is abnormal. Next, the IoT node broadcasts an equipment identification name containing an existing gateway identification code and a state code of transducer showing whether the transducer is abnormal. When the IoT mobile device scans the equipment identification name broadcasted from the IoT node, a visual interface displays the state of IoT node by identifying the gateway identification code and the state code. Accordingly, before connecting the IoT mobile device to the IoT node, the state of transducer in the IoT node is acquired, allowing any IoT mobile device to monitor any transducer in a synchronous and many-to-many manner within the broadcasting area.

Many-to-many state identification system of equipment names that are broadcasted from Internet-of-Things

An optical detecting apparatus for detecting a degree of freedom error of a spindle and has a standard bar and a sensor module, and is assembled between a spindle and a rotating platform of a powered machinery. The standard bar has a rod lens and a reflection face. The sensor module has two detecting groups, an oblique laser head, and a reflected spot displacement sensor. Each detecting group emits a laser light through the rod lens along the X-axis and the Y-axis of the powered machinery. The oblique laser head emits an oblique laser light to the reflected spot displacement sensor. When the spindle of the powered machinery generates errors after rotating, the sensor module receives the changes of the laser lights to obtain the displacement change signals of the standard bar for a calculation unit to detect the errors between the spindle and the rotating platform.

Optical detecting apparatus for detecting a degree of freedom error of a spindle and a detecting method thereof

A method of numerical-control scraping of a work piece has a preparing step, a scanning step, a flatness-parameter inputting step, a surface-finishing step, a related-parameter inputting step, an auto-scraping step and an analyzing step. The preparing step comprises preparing a multi-axis machine tool, a laser displacement meter, an auto scraping apparatus and a computer. The scanning step comprises scanning the work piece. The flatness-parameter inputting step comprises inputting a flatness-parameter. The surface-finishing step comprises calculating out the to-be-scraped ranges of the work piece and scraping the work piece. The related-parameter inputting step comprises inputting desired PPI and POP in the computer, calculating out the HOP, the DOS and the oil content to obtain the length, the width and the depth of a single scraping process. The auto-scraping step comprises scraping the work piece to meet the requirement. The analyzing step comprises detecting the 3D-appearance drawing of the work piece.

Method of numerical-control scraping of a work piece

Means for measuring a working machine's structural deviation from five reference axes includes a main sensing body bonded with a main axis of the working machine (or controlled to revolve), and a lighting unit set around the main sensing body to circle about the main sensing body with a fixed radius (or the lighting unit radiates a light on the main sensing body from that radial distance and circles along with the main sensing body) such that as soon as the main sensing body has detected an optical signal, it is converted to an error signal informing of the working machine's structural deviation in two or three dimensional displacement.

Means for measuring a working machine's structural deviation from five reference axes

A static/dynamic multi-function measuring device for linear unit, includes a foundation, a multi-direction sliding unit having eddy current detector, a linear motor, a linear unit with a sensing element and an optical measuring unit; the static/dynamic multi-function measuring device uses the linear motor to drive the multi-direction sliding unit with low friction to provide a non-contact measurement of a parallel alignment of the linear unit, a linear accuracy measurement of the linear unit, and a vibration measurement of the linear unit to detect the parallel alignment of the linear unit and the linear accuracy of a slide rail and so on, the static/dynamic multi-function measuring device also measures errors of the linear unit and a slide block moving in the vibrating and the rolling direction.

Static/dynamic multi-function measuring device for linear unit

Growing community of inventors

Dajia, Taiwan

Tung-Hsien Hsieh