Tohoku Univ. Technology : Batch fabrication method by laminating method : T24-029
Batch fabricating of complex parts using 3D printing robots
In the fabricating industry, with the diversification of customer needs, the demand for high-mix, low-volume production and complex fabricating technology is increasing. In particular, for endoscopes, which are produced in high-mix, low-volume production, the parts processing and assembly work are generally carried out manually by skilled workers. However, there have been problems such as variations due to individual differences and time required for production by hand. In order to solve the above problems, the present invention has developed a method for automatically and collectively creating complex parts fabricating and assembly processes using a 3D printer and a robot arm. Specifically, a fixing table and a jig are laminated with a soluble material, and the parts are arranged on the main body using a robot arm. Then, the fixing table and the jig are dissolved (see right figure). We were able to test and confirm the operation of this technology by applying it to the joint of a chopstick endoscope used in otology (upper left figure) and a multi directional active bending mechanism using shape memory alloy (SMA) wire (upper right figure). In the future, we aim to apply this technology to various minimally invasive medical devices and some consumer products by mounting various micro electronic components.
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.
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