SU571389A1 - Screw press - Google Patents

Description

(54) VINTSZHS PRESS

I

FIELD OF THE INVENTION The invention relates to forging machinery, namely screw. th press.

Known screw press containing the frame installed in the direction cich5

Beds and an external slider, in the internal cavity of which the inner ram is placed with the raft fixed in it, as well as having two screw screws connected by the upper screw with the other nut located in the cross-section of the stanisle.

A disadvantage of the known construction is the fact that it is easy to manufacture at a ratio of external to 16 internal slider forces to one. With a higher ratio of the force of the outer and outer sliders, for example up to two or more, the angle of inclination of the thread of the screw connected to the nut of the inner slide reaches 20. In some cases, with a large average screw diameter, perform this angle of inclination on modern equipment is impossible. All this reduces the technological capabilities of the press.

, -2 The purpose of the invention is the expansion tahkolo

press opportunities.

This goal is achieved by the fact that it is equipped with an additional nut installed in the outer slider and connected to the bottom screw thread of the new screw, and also an additional screw connected to the nut of the inner slide that is fixed in the outer slide bearing. tied to the body of the additional nut, wedge bottom screw cutting of the main screw; made opposite direction relative to the upper screw cutting

On the fyG, 1 shows the proposed screw press, the general view; in fig. 2 is a graph of the speeds of the outer and inner sliders during the course of acceleration into them and the course of deformation.

Claims (1)

The screw press contains a frame 1, in the direction of which there is an external slide 2, in the internal cavity of which an internal slide 3 is installed with a fixed nut 4, which is screwed with a BHH7t MS rigidly connected to the housing 6 of the nut 7. The housing 6 rests on the die 8, and the henny part is connected to the slider for 2 hours & 9 seconds. The nut 7 is screwed with. lower screw lapel screw lOj kotori upper screw thread S5inchvae7ch; with a nut 11. In the upper part of the screw, the flywheel 12, housing 6 of nut 7 interacts; with the brake brakes 13, which are driven by any well-known mechanism: an electromagnet or cam, and the brake itself is full of any known design. To the slider 3, the working tool 14j is attached to the upper die 15 attached to the slider 2, and the lower die 16 to the nyucha crossbar of the press bed 1. The drive of the flywheel and the screw can be made frictional, from a circular arcs, from hydraulic motors or hydraulic motors. Press work with the next edge. ,. In the initial position, the outer 2 and inner {th 3 sliders are in the top 1 file, 13 are inhibited. When turning on the drive, the 12 and the screw 1O begin to rotate, and the screw 10 is screwed into the nut 11 with the upper screw 10 the lower vuiphshaya is pulled out of the nut 7. The sliders 2 and 3 accelerated I mixed downward with the same speed Vg and Y along the distance of the slide 2 to close the punches 15 and 16. At the time of the resistance of the punches 15 to 16 the slider 2 Stopped, not also vertical displacement and nut 7. TSFMOZ 13 RA is stormed, for example, from the official. Since the nut 7 does not have a vertical movement, it begins to rotate at an angular speed provided by the rotation of the screw 1O and its pulling downward movement. With the nut 7, the housing 6 and the screw 5 rotate. When the screw 5 rotates, the slide 3 pulls the accelerated downward movement at a speed higher than the joint mixing speed of the sliders 2 and 3. When the tool 14 comes into contact with the workpiece, the deformation stroke S begins, at which the kinetic energy of the moving parts parts goes s work plastic deformation of the workpiece. The speed of the slider 3 drops to zero. At the end of the stroke of the deforms rl rv, the drive is p & versioned, the flywheel of 12 liters of rotation starts to rotate to the opposite. The upper 10 is twisted into the nut 11 and, having made an external movement (1e, rises. At the same time, the lower screw screw 10 acts on the nut 7 to tend to raise the 2 in 3 sliders. Because when pressed in closed split dies, the coupling area of the tool connected to a circular crawler 2 and large & gche than with a single crawler and, moreover, the external crawler 2 is more weight than the internal crawler 3, then the nut 7 into the casing 6, as well as the screw 5 associated with it, begin to rotate together with screw 10. Slider 3 rises to Kraingach ) the upper position relative to the slider -2, and then both the slider moves upwardly from the seats to the initial upper position relative to the bed 1. Thoriosa 13 slows down the body of the wiper 6, the cycle is completed ,. The present KoHcipyKitpe screw press eliminates the disadvantage of the newsletters. press that reduces the angle of inclination of the threads when correlating the efforts of the outer and inner sliders two or more, to 17-30, which expands the hardness of the press. Formula isobretenn In a ntw press that contains an outer slider installed in the bed guides, in the inner cavity of which the inner slider is placed with the nut fixed in it, and also having a screw connected to the upper screw with a nut located in the upper screw. the crossbar of the bed, of which it is, with S, in order to expand technological capabilities, it is equipped with an additional nut installed in the slider and connected to the bottom screw of the main screw as well as A screw screw connected to the inner slide nut is ({ovine in the outer crawler pads and rigidly connected to the casing), the bottom screw of the screw is made in the opposite direction relative to the top: screw thread cutting. Sources of information, 1 pin in the course of examination: i. The order is J 2097215 / 25-27, 15.01.75 cl. in DA B 1/18, according to which a decision is issued to issue aBTqpcKoro certificate. 9sh.1 12