Preparing method of scroll-shaped fluid machine

Abstract

Abstract PURPOSE:To obtain a high performance scroll-shaped fluid machine by preparing separately a scroll end plate and a spirally molded lap and by inserting the lap into a groove molded by plastic work of the end plate. CONSTITUTION:An end plate 7 is fixed on a prescribed position on a die 20, a spiral hollow 16 is molded in a prescribed depth on a upper surface of the end plate 7 with one stroke by dropping a punch 19 in a state of the end plate 7 tied up with a strain weight 21 and the die 20. Thereby on the plate surface of the opposite side of the hollow 16, the projected part 17 forced into the die 20 are molded. Next, when putting together the lap, which is made by spirally winding the end plate 7 with the hollow and a band plate by means of roll and the like, chamfering 23 is provided on the forcing side of the lap 3 and this portion is pushed in and tied up in the hollow 16 of the end plate 7 thus preparing the scroll-shaped fluid machine which is excellent in mass production and having high precsion and performance.

Inventors

• 👤 Keiichi Nakamura
• 👤 Hiroya Murakami
• 👤 Masaru Kobayashi
• 👤 Mitsunari Kamata
• 👤 Izumi Ochiai
• 👤 Masatoshi Matsushima

Bibliographic Details