Tool replacement for a multi-stage press machine
First Claim
1. 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.
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Accused Products
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.
9 Citations
16 Claims
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1. In an automatic tool replacement system for a multi-stage press forming machine comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. In an automatic tool replacement system for a multi-stage press forming machine comprising:
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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. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification