SU582992A1 - Mechanical press - Google Patents

Description

I

The invention relates to the processing of metals by pressure, specifically to the design of presses with a driven screw spindle.

A press is known, containing a slider mounted in: a slide connected to the bed; it is connected; a crank 5 is driven by a mechanism with a drive 1.

However, the technological code of such a press is small.

A press is also known, in the guide beds of which a working one is installed, and in others a perpendicular guide is installed, which guides the working creeper to separate an additional crawler with nuts fixed in it, which interact with drive screws, and. the drive of the working slider is carried out from the additional slider by means of a wedge mbhanizm | 2,

This press is closest to the invention of the technical essence.

The disadvantage of this design lies in the considerable size of the stroke of the additional sliders in the wedge drive mechanism.

The aim of the invention is to increase the technological course of the working

Julzuna at rated press loads.

; dp achieving this goal is a press. It is equipped with a connecting rod, the ends of which are hinged with a worker and are additionally filled with 3 floors,

: FIG. I schematically shows the proposed press;

FIG. 2 - the same in terms of

The press contains an electric motor 1, an axle 2, mounted on the drive shaft 3, on which the pinion gears 4 and 5 are mounted. The gear 4 interacts with the gears 6 of the drive disks 7 of the first 5ft gear and the gear 5 interacts with the intermediate gears 8. Gear M 9 drive discs 10 second power sleeves.

Gears; b and d are planted on the hollow shafts 11 and can rotate freely. Inside the latter, with the possibility of free rotation, there are screw drives All 12 of the drive, which interact with the screw nuts 13, which are fixed on the additional slide 14, are screwed onto the screw shafts 12 with the possibility of axial movement along the shaft (e.g. ) Slave wheels 15 first clutch and slave disks 16 second

the clutches are included, as well as the gears 17 are rigidly fixed, balancing the rotational speeds of the rods 12, and the brakes 18.

The gears 17 interact with each other via an intermediate gear 19 set on the axis 20. Through the connecting rod 21, an additional slider 14, traversed in the direction of the shoes 22, is hingedly connected with the working slider 23, of the crossbar & Mtat in the guides 24. To the press table 25 and to the worker The slider 23 attaches the die tool 26.

The shafts 3, 12 and the axis 20 are mounted with the possibility of free rotation in the bearings. At the same time on the end of the shafts 12 are installed angular contact bearings. They prevent the movement of the screw shafts along their axis in the process of deformation of the workpiece. Hollow shafts 11 are rigidly fixed.

The press works as follows.

The motor 1 through the V-belt. the transmission transfers the rotation to the flywheel 2. Together with the flywheel they rotate for 3 and the driving gears 4 and 5. The stern 4 transmits the rotation of the gears of the drive disks 7 of the first sleeves of the screw shafts 12, and the gear 5 through the intermediate gears 8 transfers the rotation of gears 9 of the driving disks 10 second screw couplings of shafts 12. Thus, the drive disks 7 and 10 rotate in opposite directions.

During this period, all the clutches are disconnected, the working slider 23 is raised to the upper extreme position, and the additional slider is retracted to position A, which is held due to the brakes 18 being switched on, which prevents the drive helical shafts 12 from turning.

In order to complete the working stroke, the brakes 18 are disconnected and the first clutches are activated by attaching the drive wheels 15 to the drive wheels 7.

The screw shafts 12 are driven into rotational motion, and due to the nuts 13, the additional slider 14 moves from position A to position B, and the working slider 23 is lowered by connecting rod 21, making a working stroke 5. When moving an additional slider 14 center pressure

| pag: zuia 23 is the last | e1n4lt extreme lower position, and when the slider 14 is moved further to the position F, the working slider 23 rises. : Ouch the drive plates 15 of the first couplings and the brakes 18 are activated; the drive shafts 12 of the drive are firmly fixed — the slider 14 stops at position B. At this point, the working slider 23 is at the top; extreme position. In order to perform a repeated stroke, the brakes 18 are disconnected and the second clutch is engaged by connecting the driven disks 16 to the drive 10. At the same time, the screw shafts 12 of the drive are driven in rotation in the opposite direction and the additional slider 14 moves from position B to position A, thereby providing a return -accessible movement of the working slider 23.

The proposed design of the press 1; 1 It allows to increase its operational capabilities, especially during cold volumetric deformation of parts. In addition, the deformation force of the workpieces is perceived by the guides of the additional slide, which greatly reduces the load on the screw pairs.

Claims (2)

1.AN.N. Banquets, etc. Forging equipment, M., Iz-Mashinostroenie, 1970, p. 240, rice 91 2..The author's certificate  4,61844, cl. B 30 B 1/18, 1972. t / tuC / FIG. If