RU1801773C - Rodless press - Google Patents

Abstract

The invention relates to forge-pressing mechanical engineering, namely, to designs of mechanical rodless presses / SUBSTANCE: rodless press comprises a slider mounted in the guides of the bed with an eccentric sleeve located in its cylindrical hole, and also a drive shaft mounted in the supports of the bed and in the hole of the eccentric sleeve . the eccentric of which has an eccentricity equal to the eccentricity of the sleeve. An eccentric is fixedly mounted on the drive shaft to bring the press out of the dead position with an eccentricity coinciding in direction with the eccentricity of the eccentric of the drive shaft and twice its size. Upper and lower adjustable stops are installed on the slider with the possibility of interacting with the eccentric to bring the press out of the dead position, the working surfaces of which are displaced on opposite sides relative to the plane passing through the axis of rotation of the shaft and the longitudinal axis of the slider, at a distance determined eccentricity, angle of self-braking and the angle of the beginning of stamping. 4 ill. THX

Description

The invention relates to the field of forge-and-press engineering, and, more specifically, Hi) to the construction of mechanical rodless presses.

The purpose of the invention is to increase reliability and reduce metal consumption.

In FIG. 1 shows a general view of a rodless press, a stepped section along the axes of the stops and the axis of rotation of the drive shaft: FIG. 2 is a section AA in FIG. 1, in the upper position of the slider; in FIG. 3 - the same, when the slider passes the dead position on the downward stroke; in FIG. 4 is a diagram for explaining the operation of the press, where the eccentrics are depicted as lever links.

The rodless press contains a slider 2 mounted in the guides of the frame 1 with an eccentric sleeve 3. A drive shaft 4 with an eccentric 5 is mounted in the stands of the frame 1 and in the holes of the sleeve 3. An eccentric b is fixedly mounted relative to it on the drive shaft 4 for output press from dead positions. The eccentric 5 and the hole in the sleeve 3 are made with eccentricities of equal magnitude, and the eccentricity of the eccentric 6 is equal to twice the eccentricity of the eccentric 5 and coincides with it in direction. On slider 2 with the possibility of interaction VI

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and with an eccentric 6, two adjustable stops 7 and 8 are installed, the working surfaces of which are offset in opposite directions relative to the plane passing through the axis of rotation of the shaft 4 and the longitudinal axis of the slider 2 by a distance H, the value of which is determined by the angle of the beginning of stamping p, the angle of the cone trainer and eccentricity of the eccentric 5e.

The rodless press operates as follows. .

At the beginning of the stamping cycle, the slider 2 is in its highest position, the axis of the cylindrical hole in it is shifted upward from the axis of the drive ball 4 by two eccentricities e. When the shaft 4 is rotated counterclockwise, the eccentric sleeve 3 rotates in the opposite direction, causing the slider 2 to move down . When approaching the self-braking zone, determined by the angle of the friction cone, the eccentric 6 for engaging the press from the dead positions interacts with the stop 7 on the slider 2, forcing the latter to move further down through the dead position of the mechanism.

With further rotation of the shaft 4, the eccentric b comes out of contact with the stop 7 and stamping occurs due to the interaction of the eccentric 5 with the slider 2 through the eccentric sleeve 3,

With the return stroke of the slider 2, the eccentric 6 moves the slider through the dead position, interacting with the stop 8.

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The technical and economic effect of the implementation of the invention is ensured by increasing reliability and reducing metal consumption.

Claims (1)

SUMMARY OF THE INVENTION A rodless press comprising a slider mounted in the guides of the frame with a cylindrical hole in it, an eccentric sleeve mounted to rotate the slide of the slide, a drive shaft with an eccentric mounted with its pins in the frame legs, and an eccentric in the sleeve hole, an eccentric for press exit from the dead positions and the upper and lower stop elements mating with it, while the eccentric shaft and the hole in the sleeve are made with eccentricities of equal magnitude, different which, in order to increase reliability and reduce metal consumption, the upper and lower thrust elements are made in the form of adjustable stops mounted on a slider, the working surfaces of which are displaced in opposite directions relative to the plane passing through the axis of rotation of the shaft and the longitudinal axis of the slider, and the eccentric for withdrawing the press from the dead position is made in the form of a ring fixedly mounted on the drive shaft and having an eccentricity twice as large and coinciding in the direction o in relative eccentric shaft. 1801773 Aa p # gz