SU1222573A1 - Vertical power press - Google Patents

Description

The invention relates to forging and pressing machinery, in particular, to the design of vertical mechanical presses.

The purpose of the invention is to increase reliability by reducing the effect of bed deformation during a manufacturing operation on the accuracy of moving the slide relative to the die plate.

FIG. 1 shows a press, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 — press, embodiment.

The press contains a C-shaped frame in the form of upper 2 and lower

3 cross-pieces, placed in rails

4 beds slider 5, podschtampovaya plate 6, the actuating actuator in the form of a crank shaft 7, and a connecting rod 8 connected to it with a slider 5, as well as a double-arm lever system 9, one end of each of which is hingedly articulated with frame with the help of axis 10, and the other with the back side of the die plate 6, and vertical strut 11, the lower end of each of which is articulated with the middle of the levers 9, and the upper articulated with the upper cross member 2.

At the junction of the upper cross member 2 with the uprights 1, a slot 12. is made. The guides 4 are mounted in the uprights 1. A flywheel 13 is fixed on the crank shaft 7. In the levers 9 there are slots 14 covering the axes 10.

The connection of the levers 9 with the clamp 11 is carried out by means of the axis 15, and the st

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6-6

ten

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11 with the upper crossbar 2 - through the axis 16.

In the embodiment of the press (Fig. 4), the articulation of each of the levers 9 with the substamp plate 6 is carried out by means of their middle part, and the straps 11 are placed on the outside of the frame and are joined by the corresponding ends of the levers 9 and the upper cross member 2.

The press works as follows.

0 When the flywheel 13 rotates, the rotation is transmitted to the crank shaft 7, and from it through the rod 8, the movement is transmitted to the slider 5.

In this case, the punching force is transmitted through a stamp (not shown) to the pods of the new plate 6. At the same time, the force is transmitted to the upper cross member 2, and through the straps 11 and levers 9 to the substate plate 6, but from the opposite side. Thus, the aforementioned forces are mutually balanced and, therefore, the substamp plate does not bend under the action of the technological load. Due to the fact that most of the technological load is perceived by the upper cross-member 2, the tie-rod 11 and the levers 9, the section of the bed where the guides 4 are located is experiencing insignificant loads. Therefore, the slider 5 is little shifted in the transverse direction relative to the die plate 6.

The technical and economic effect of the implementation of the invention is provided by an increase in reliability as compared with the known device.

0

Fy

Editor A. Vorovich Order 1659/19

Compiled by E. Ayvazov

Tehred I. VeresKorrektor O. Lugova

Circulation 597 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (1)

VERTICAL MECHANICAL PRESS, containing a C-shaped bed in the form of an upper and lower cross members connected by uprights, a slider placed in the bed guides, a sub-die plate, a drive actuator, as well as a pivot-lever system in the form of a two-arm lever, one end of which is articulated with the bed and the other with the back of the punch plate, and a vertical tie, the lower end of which is pivotally articulated with the middle of the lever, characterized in that, in order to increase reliability, at the junction of the upper pop The rails with racks are made a slot, the guides are placed in racks, while the upper end of the screed is articulated with the upper cross member. yo nd nd joint venture GO