Tool replacement for a multi-stage press machine
AssigneeK. K. Sakamurakikai Seisakusho
InventorsYshikazu Sakamura, Yuzo Kimura
Life of this patent
Estimating the term…
Abstract
The invention provides an automatic replacement system for automatically and efficiently replacing a bar cutter and a material transfer unit as well as all or part of plural dies and punches attached to a multi-stage press forming machine. The automatic replacement system includes a carrier for conveying tools between a multi-stage press station A including plural dies and punches and tool replacements stations B and C disposed in the vicinity of the press station A; first engagement means for detachable connecting a jig for conveying dies or punches with a material transfer unit; and second engagement means for detachable connecting the carrier with a bar cutter.
Claims16
In an automatic tool replacement system for a multi-stage press forming machine comprising:
- a multi-stage press station with plural dies disposed at given locations on a base, and plural punches each opposed to the corresponding die and mounted on the front face of a ram moving forward and backward against the dies;
- a bar cutter detachably mounted on the base for cutting a material bar supplied from a back end of the base in given lengths;
- and
- a material transfer unit for successively feeding the material bar cut in given lengths to the multi-stage press station,
- whereby the cut pieces are press-worked step by step to form products in a given shape,
- the automatic tool replacement system is characterized in that the system further comprises:
- a replacement tool station located in the vicinity of the multi-stage press station;
- a carrier for conveying tools including the dies, the punches, the material transfer unit, and the bar cutter between the multi-stage press station and the replacement tool station;
- a jig for holding the plural dies or punches in a disposition corresponding to the locations of the dies on the base or the punches on the ram;
- plural engagement members corresponding to the plural dies or punches, each being attached to the carrier for engaging with the corresponding die or punch;
- driving means mounted on the carrier for driving each engagement member so as to transfer the corresponding die or punch between the base or ram and the jig;
- first engagement means for detachably connecting the carrier with the jig or the material transfer unit;
- and
- second engagement means for detachably connecting the carrier with the bar cutter.
In an automatic tool replacement system for a multi-stage press forming machine comprising:
- a multi-stage press station with plural dies disposed at given locations on a base, and plural punches each opposed to the corresponding die and mounted on the front face of a ram moving forward and backward against the dies;
- a bar cutter detachably mounted on the base for cutting a material bar supplied from a back end of the base in given lengths;
- and
- a material transfer unit for successively feeding the material bar cut in given lengths to the multi-stage press station,
- where the cut pieces are press-worked step by step to form products in a given shape,
- the automatic tool replacement system is characterized in that the system further comprises:
- a jig for holding the plural dies or punches in a disposition corresponding to the locations of the dies on the base or the punches on the ram;
- a first replacement tool station for the material transfer unit;
- a second replacement tool station for the jig and the bar cutter
- a carrier for conveying tools including the dies, the punches, the material transfer unit, and the bar cutter between the multi-stage press station and the first replacement tool station or the second replacement tool station;
- plural engagement members corresponding to the plural dies or punches, each being attached to the carrier for engaging with the corresponding die or punch;
- driving means mounted on the carrier for driving each engagement member so as to transfer the corresponding die or punch between the base or ram and the jig;
- first engagement means for detachably connecting the carrier with the jig or the material transfer unit;
- and
- second engagement means for detachably connecting the carrier with the bar cutter.
Dependencies are inferred from the claim text.