SU1473972A1 - Screw press for forming with twisting - Google Patents

Abstract

The invention relates to mechanical engineering, in particular to designs of presses designed for stamping with torsion. The goal is to increase the productivity and efficiency of the press. The screw press contains slider 3 installed in the guides 2 of the bed 1 and the body 13. In the cavity of the slider 3, the firing pin 5 is rotatably mounted with the sleeve 6 fixed on it and the nut 7 joined by non-braking screw cut 8. Another nut is fixed in the housing 13 self-braking threading articulated with threading the sleeve 6 opposite to the threading direction of the screw 8. The body 13 of the additional nut 12 is displaced in the form of knee mechanisms with controlled pneumatic cylinders. In this case, the knee connects the housing 13 to the unloading mechanism in the form of hydraulic cylinders 15 and rods 14. Stoppers 5 and slider 3 have stops that limit the rotation of the striker 5 during the idling period of the slider 3. From controlled pneumatic cylinders through knee mechanisms The body 13 of the additional nut 12 during this period moves down along the guides 2. During the working stroke, the hammer 5 begins to rotate, ensuring the stamping of the workpiece with torsion.

Description

Memory

15

Thebes. g

View

-Uix

25

 gz

- tfFia .Z

zs ge l-fT.

FIG. C

15

CRC

Tg

FIG. five

Claims (2)

Claim 1. A torsion punch screw press comprising a slider mounted in the guides of the bed, mounted in the inner cavity of the slider with the possibility of rotation of the strikers with a sleeve and nut fixed to it, articulated by a non-self-locking thread with a screw mounted in the thrust bearing and the bed bearing, fixed to the drive flywheel screw , a housing with an additional nut fixed in its cavity with a self-braking thread, articulated with a thread on the outer surface of the sleeve, and the direction of cutting of the sleeve is opposite positively to the direction of the screw cutting, as well as the unloading mechanism in the form of hydraulic cylinders mounted on the bottom, characterized in that, in order to increase productivity and efficiency, it is equipped with an additional nut housing displacement unit made in the form of knee mechanisms with controlled pneumatic cylinders, the upper knees of which are connected with the rods of the hydraulic cylinders of the unloading mechanism, the lower knees are connected with the housing of the additional nut, the central hinges of the knee mechanisms are connected with the rod of the corresponding controlled air ilindra, and the latter is fixed to the frame. 2. Press on π. 1, characterized in that it is equipped with stops installed on the striker and in the slider, moreover, one of the stops of the slider is made drive and mounted with the possibility of movement in the radial direction. Type A View B Fig.Z Bb