JP2002292441A5

JP2002292441A5 -

Info

Publication number: JP2002292441A5
Application number: JP2001101868A
Authority: JP
Filing date: 2001-03-30
Publication date: 2005-02-03
Anticipated expiration: 2021-03-30

Description

【００１２】
２内周に成形前のワークを投入する型彫空間を形成するインナーダイスとインナーダイスの外周側に配置されるアウターダイスを備える下型と、下型の型彫空間に対し進退可能なパンチを備える上型とを有する鍛造装置において、下型のアウターダイス内周に周状に凹む内周凹部を形成するとともに、内周凹部によりインナーダイスとアウターダイスとの間に圧入空間を画成し、圧入空間に液体を圧入供給する。[0012]
2 A lower die with an inner die that forms a die-cutting space to which the workpiece before molding is injected on the inner circumference and an outer die placed on the outer periphery of the inner die, and a punch that can move back and forth to the lower die-cutting space In the forging device having an upper die, an inner circumferential recess is formed on the inner periphery of the lower die, and the press-in space is defined between the inner and outer dies by the inner circumferential recess . The liquid is supplied by pressure into the press-in space.

【００２８】
また、内周に成形前のワークを投入する型彫空間を形成するインナーダイスとインナーダイスの外周側に配置されるアウターダイスを備える下型と、下型の型彫空間に対し進退可能なパンチを備える上型とを有する鍛造装置において、下型のアウターダイス内周に周状に凹む内周凹部を形成するとともに、内周凹部によりインナーダイスとアウターダイスとの間に圧入空間を画成し、圧入空間に液体を圧入供給する場合においても、上記効果と同様の効果を得ることができる。更に、製造頻度の高いインナーダイスの外周を単純形状にできるので、ダイスの生産性を一段と向上させることができる。[0028]
In addition, a lower die including an inner die forming an engraved space for introducing a work before molding on the inner periphery and an outer die disposed on the outer peripheral side of the inner die, and a punch capable of advancing and retracting with respect to the lower die recess space. Forming an inner peripheral recess recessed circumferentially around the inner periphery of the lower die and defining a press-fit space between the inner die and the outer die by the inner peripheral recess. Also in the case where the liquid is press-fitted and supplied to the press-in space, the same effect as the above effect can be obtained. Furthermore, since the outer periphery of the frequently manufactured inner die can be formed into a simple shape, the productivity of the die can be further improved.

Claims

Lower die (81) comprising an inner die (83) for forming a die-cut space (85) into which the work before molding is introduced on the inner periphery and an outer die (88) arranged on the outer peripheral side of the inner die (83) And an upper die (71) provided with a punch (72) capable of advancing and retracting with respect to the lower case (81) of the lower die (81); an inner die (83) of the lower die (81); An outer peripheral recess (86) recessed in a circumferential shape is formed on the outer periphery, and a press-in space (S) is defined between the inner die (83) and the outer die (88) by the outer periphery recess (86). A forging device characterized in that a liquid is pressed and supplied to a space (S).

Lower die (81) comprising an inner die (83) for forming a die-cut space (85) into which the work before molding is introduced on the inner periphery and an outer die (88) arranged on the outer peripheral side of the inner die (83) And an upper die (71) provided with a punch (72) capable of advancing and retracting with respect to the lower case (81) of the lower die (81); an outer die (88) of the lower die (81); to form the inner recess in the inner peripheral recessed circumferentially (89), defines a press-fitting space (S) between the said inner recess (89) and the inner die (83) and outer die (88) A forging device characterized in that a liquid is press-fitted and supplied to the press-in space (S).