ROBOT ARM, ROBOT ARM INSERT INJECTION MOLDING MOLD AND ROBOT ARM INSERT INJECTION MOLDING METHOD
To provide a robot arm that is sufficiently lightweight and highly safe as a mechanical device that operates with or assists human beings while ensuring a required high torsional strength, and a robot arm insert injection molding mold and a robot arm insert injection molding method.SOLUTION: An insi...
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Zusammenfassung: | To provide a robot arm that is sufficiently lightweight and highly safe as a mechanical device that operates with or assists human beings while ensuring a required high torsional strength, and a robot arm insert injection molding mold and a robot arm insert injection molding method.SOLUTION: An inside of an FRP cylinder 2 is supported by a core 6, and a composite resin in which a thermoplastic resin and a fiber are composited is injection-molded by a mold part on an outer diameter side of the FRP cylinder 2. At that time, a recess communicating with a through hole 4 penetrating from the inside to the outside of the FRP cylinder 2 is formed in the core 6, and when the composite resin in which the thermoplastic resin and the fiber are composited is injection-molded on an outer diameter side of the FRP cylinder 2, at the same time, the through hole 4 and the recess are filled with the composite resin.SELECTED DRAWING: Figure 5
【課題】必要とされる高い捩り強度を確保しつつ、充分に軽量でしかも人間の間で、人間と共にあるいは人間を補助して動作する機械装置として安全性が高いロボットアーム、ロボットアームインサート射出成形用金型及びロボットアームインサート射出成形方法を提供する。【解決手段】FRP製円筒体2内側を中子6によって支持して熱可塑性樹脂と繊維を複合した複合樹脂をFRP製円筒体2の外径側で金型部にて射出成形する。その際、中子6にはFRP製円筒体2の内側から外側に貫通する貫通孔4に連通する凹部が形成されており、熱可塑性樹脂と繊維を複合した複合樹脂をFRP製円筒体2の外径側で射出成形する際に同時に貫通孔4及び凹部に複合樹脂を充填する。【選択図】図5 |
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