SU1493493A1 - Device for controlling unexposed height and cross-head pushers position of vertical press - Google Patents

Abstract

The invention relates to forging and pressing machinery, in particular, to devices for adjusting the closed height of the vertical presses and the position of the slide of the pushers. The purpose of the invention is to increase reliability. When rotating the screws, the worm gears 5 rotate, and with them the threaded bushings 3. The latter, rotating, simultaneously move along the threaded bolsters 7 together with the slider 1. As a result, the slider 1 rises or rises relative to the press table while increasing the closed height or lowers when the closed height decreases. Simultaneously with the rotation of the threaded bushings 3, they rotate through the gear rims 10 and the gears 11 of the stop screws 12, which are screwed or turned out of the nuts 14, and therefore, are moved relative to the beams 19. 3 sludge.

Description

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The invention relates to mechanical engineering, in particular, to the design of forging and pressing machines.

The purpose of the invention is to increase reliability.

FIG. 1 shows a device, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2

The device contains cases 2 mounted in the slider 1, each of which has a threaded sleeve 3. On the top of the sleeve, a worm wheel 5 is mounted on the key 4, which is connected to the worm 6. The inside of the sleeve 3 includes a threaded gland 7 connected to a crank 8. On one side of the housing 2, in its middle part, a window 9 is made. On the outer surface of the sleeve 3, in its middle part, there is a gear ring 10 which is in engagement with the teeth of the wheel 11 of the stop screw 12 of the ejector position adjustment unit 13 slider 1.

Each stop screw 12, with its upper end, enters the nut 14, installed with the possibility of mixing in the vertical direction on the direction of the pin 15, fixed on the crosspiece 16, and the lower end includes the 13th direction of the sleeve 17 of the cup 18 of the slide block 1. For a kinematic connection the movement of the slider 1 and the stop screw 12 on the last and in the nut 14 is threaded with the opposite direction of the thread relative to the thread of the binder 7. At the same time, the lower end of the stop screw 12 is in contact with the beam 19 of the ejectors 13. The beam 19 is suspended ene to the rod 20 of power cylinder 21 mounted on the slider. The latter also includes an electric motor 22 with a gear (not shown) hooked to a gear wheel 23 mounted on a shaft 24 connected through sleeves 25 and an intermediate shaft 26 to worms 6.

The device works as follows.

By turning on the electric motor 22, a gear mounted on its shaft is rotated, and the gear wheel 23 rotates. The wheel 23 through the couplings 25 and the intermediate shaft 26, in turn, drives the shafts of the screws 6 to rotate. The screws 6 rotate the worm gears 5, and together with them, the threaded sleeves 3 rotate through the keys 4. The latter, rotating, move along the threaded holders

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7 together with the slider 1. At the same time, the cams 7 with the tongues 8 remain in place. As a result, the slider 1 either raises, relative to the table (not shown) of the press, when it is necessary to increase the closed height, or lowers to the table to reduce the closed height of the press. At the same time, rotating the threaded sleeve 3 through the gear rims 10 transmit the rotation to the gears 11 of the stop screws 12. Each stop screw 12 consequently enters the nut 14 on the guide pin 15 of the cross bar 16 when the closed height increases, or comes out of the nut 14 when the closed height of the press decreases .

The direction of movement of the upper end of the stop screw 12 with the nut 14 is carried out by the guide pin 15 of the crosshead 16, and its lower end - by the guide sleeve 17 of the cup 18 of the slide block 1.

The implementation of the invention provides increased reliability of the device.

Claims (1)

Invention Formula A device for adjusting the closed height of the vertical press and the position of the ejector slider, which contains mechanisms for adjusting the position of the slider relative to the suspension points of the connecting rods, each in the form of a worm pair and a threaded pair of sub bushing, adjusting the position of the ejectors relative to the traverse, each in the form of a nut and a stop screw, synchronization units for movement of the stop screws and bushings, each in the form of a gear pair, the wheel of which is connected to the stop screw, and the gear ring with the sleeve, as well as the drive gear in worm pairs, the nuts are mounted above the corresponding gears, characterized in that, in order to increase reliability, it is equipped with guide pins fixed in the cross bar, the nuts are made in the shape of the pins, the thread in each screw the pair is made in the opposite direction with respect to the thread of the pairs of bushing - bushing, each nut being mounted with its own nest covering a corresponding guide pin with the possibility of moving along the latter and interacting with its upper Tzom with cross. 11 21 Figg 25 2 // 21 6 2 AT 6 ten