SU1551562A1 - Hydraulic press - Google Patents

Abstract

The invention relates to mechanical engineering, namely to press structures. The purpose of the invention is to increase the reliability and expansion of technological capabilities. In the power cylinder with a movable liner, the mechanism for adjusting the stroke of the piston stroke is made in the form of a nut placed in its cavity and a drive screw. The screw is passed through the stepped bushing and support flange and is connected to the control system. 1 il.

Description

The invention relates to mechanical engineering, namely to press structures.

The purpose of the invention is to increase reliability and expand technological capabilities by increasing the accuracy of products.

The drawing shows the press.

The hydraulic press contains a frame 1 on which the power cylinder is mounted including a body 2, a lid .3, a movable sleeve 4, a working piston 5 connected by its rod 6 with a slide 7. In a blind hole the piston 5 is positioned and fixed from rotation by a key 8 nut 9 of the mechanism adjusting the magnitude of the working stroke, the drive screw 10 of which is placed in the holes of the stepped sleeve 11 and the support flange 12 mounted on the cover 3. The sleeve 11 is placed in the hole of the smaller diameter of the sleeve 4 and sealed in it. An additional cover 13 is fixed on the piston 5 with the possibility of interaction with the nut 9. The screw 10 is fixed against axial movement by the ring 14 and is connected to the control system 15. The cavity. The piston 5 is connected to the hydraulic actuator (not proven) through the channel 16 of the supporting flange 12. The drawing also shows the hydraulic switching chambers of the operations 17 of the working 18 and the return 19 strokes.

The press works as follows.

During the operation of cutting, punching and shallow drawing, the nut 9 with the screw 10 is lowered to its lowest position using the press control system 15. When a pressurized fluid is supplied to the chamber 17 of the power cylinder, the sleeve 4 moves downward, moving the piston 5 and the slider 7 to the position of the operations. After stopping the sleeve 4 in the chamber 18 under pressure enters the working fluid, and the piston 5 with the slider 7 make a working stroke, carried out the cutting of parts. When the working fluid is supplied to the chamber 19, the slider 7 with the piston 5 returns to its original position.

During the bending operation, the chamber 17 is connected to the drain and the slider 7 returns the sleeve 4 to the extreme upper position with the piston 5 during the return stroke. The nut 9 with the screw 10 and using the control system 15 is moved to the position necessary to obtain the desired angle

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are flexible. Fluid is supplied to chamber 18 under pressure and piston 5 with slider 7 is moved up to the stop nuts 9 into flange 12. When working fluid is introduced into chamber 19 slider 7 with piston 5 is returned to its original upper position.

The economic effect of the implementation is achieved by increasing the reliability and expanding technological capabilities.

Claims (1)

Invention Formula A hydraulic press containing a power cylinder mounted on the frame, including a housing with a lid and a movable sleeve mounted in it with a central stepped bore, in which a larger diameter cavity accommodates a working piston connected with its slide to the slide, as well as a hydraulic actuator, a control system and an adjustment mechanism , it is equipped with a stepped guide bush, an additional cover and a supporting flange with a hole and a channel, the mechanism for adjusting the magnitude of the working stroke is made in the form of a driving screw and 5 nuts screwed together with it, and a blind hole is made in the working piston, while the step guide bush is placed in the hole of a smaller diameter of the movable sleeve, sealed in it and rsa10 fixed on the cylinder head cover, an additional cover is fixed on the working piston, the supporting flange is mounted on the lid of the ram, the nut of the mechanism for adjusting the magnitude of the working stroke is placed in the blind bore of the working piston so that it can interact with the additional lid and is fixed in it against rotation, a screw up The mechanism is mounted in the openings of the stepped bushing and support flange and on the 15 The magnitude of the working stroke is distinguished by a control system, which grows in the cavity by the fact that, in order to increase the reliability of the piston of the power cylinder of connectivity and expansion of technological hydraulically driven air through the channel by increasing the accuracy of the product flange. It is equipped with a stepped guide bush, an additional cover and a supporting flange with a hole and a channel, the mechanism for adjusting the magnitude of the working stroke is made in the form of a driving screw and a nut screwed in with it, and a blind hole is made in the working piston, while the step guide bush is placed in the hole of a smaller diameter of the movable sleeve, sealed in it and mounted on the power cylinder cover, an additional cover is mounted on the working piston cylinder, the nut of the mechanism for adjusting the magnitude of the working stroke is placed in the blind hole of the working piston with the ability to interact with an additional cover and fixed in it against rotation, the screw is mentioned of said mechanism is mounted in the apertures of the sleeve and a stepped and communication supporting flange 77