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US 2006/0283229 A1Published application
Press
AssigneeHoden Seimitsu Kako Kenkyusho Co., Ltd.
InventorsShoji Futamura, Hiromitsu Kaneko
Life of this patent
Estimating the term…
Abstract
The invention provides a pressing apparatus using a motor, in which driving means for fast feed, which lowers a upper die to a position immediately before pressing, and a motor for pressing, which performs a pressing operation, are used to cause the driving means for fast feed and the motor for pressing to operate cooperatively, and only one position detector, which detects a present position of a slider, is provided for a set of the driving means for fast feed and the motor for pressing.
Claims15
A pressing apparatus characterized by comprising:
- a base;
- a support plate that is held in parallel to the base via plural guide columns vertically provided on the base;
- a slider that can slide on the guide columns to move up and down between the base and the support plate;
- a first motor for fast feed that is attached to the support plate and drives the slider up and down fast;
- and
- a second motor for pressing that moves the slider up and down to press a work piece, and in that:
- the pressing apparatus includes:
- a screw shaft that is attached to a rotation shaft of the first motor and drives the slider relatively to the base according to rotation of the first motor;
- a ball screw nut that is screwed with a ball screw section provided in the screw shaft;
- a lock device that integrates the screw shaft and the support plate;
- a slider moving mechanism that includes an input shaft and makes the ball screw nut reversibly rotatable relatively to the screw shaft at a rotation torque inputted from the input shaft when the screw shaft and the support plate are fixed by the lock device and makes the ball screw nut fixable to the slider;
- a second motor capable of rotating forward and reversely that gives a rotation torque to the slider moving mechanism via the input shaft;
- and
- a position detector provided for a set of the first motor and the second motor, the position detector detecting a position of the slider.
11 more elements
A pressing apparatus characterized by comprising:
- a base;
- a support plate that is held in parallel to the base via plural guide columns vertically provided on the base;
- a slider that can slide on the guide columns to move up and down between the base and the support plate;
- reciprocating driving means for fast feed that is attached to the support plate and drives the slider up and down fast;
- and
- a motor for pressing that moves the slider up and down to press a work piece, and further comprising:
- an encoder for the motor, for detecting the rotation of the motor for pressing, and a position detector for measuring the more of the slider;
- a first screw provided in the reciprocating means;
- a second screw provided in the slider and screwed with the first screw;
- a motor for pressing attached to the support plate;
- and
- a rotation transmitting mechanism that connects the motor for pressing and the second screw and transmits rotation of the motor for pressing to the second screw, and in that
- the pressing apparatus moves the slider to the vicinity of a moving end point of the reciprocating driving means with the reciprocating driving means and rotates the second screw relatively to the first screw to thereby generate a pressing force between the slider and the base.
10 more elements
Dependencies are inferred from the claim text.