SU1224180A1 - Die holder of multiposition vertical sheet-stamping automatic press - Google Patents

Description

2. Stamp holder according to claim 1, characterized in that it is provided with reverse mounted on each position

The invention relates to forging and pressing machinery, in particular to the design of press holders.

The purpose of the invention is to increase reliability.

The drawing schematically shows the proposed Stamper, General view.

The die holder contains at each position an upper plate 2, a lower plate 3, a wedge mechanism for adjusting their relative position, an extrusion and fixing unit of said nlit relative to the slide, made in the form of a double cylinder connected to the lower plate 3 stunench- This housing 4, the cover 5, the bottom 6, two pistons 7 and 8 n the pusher 9.

The die holder at each position also contains a ram cylinder, in the form of glass 0 with a stepped central bore and placed in glass 10 and connected to the upper plate 2 of a hollow stepped threaded plunger 11. The piston 8 is made in the form of a threaded ring joined by its own screw hole the threaded part of the valve 11. The bottom 6 is mounted in the middle part of the housing 4.

The housing 4, the bottom 6 and the piston 8 is formed by a cavity connected to the energy carrier (not shown). The glass 10 is mounted between the slider 1 and the top plate 2. At each position of the die, the holder contains a return 12 and an adjustment and unloading 13 valves connected to the cavity 14 of the glass 10. The wedge mechanism is made in the form of a wedge 15 and a screw 16 connected with it which is connected to the plunger P. On the bottom plate 3, the upper half of the stamp (not shown) is attached.

The glass 10 and the plunger 1 1 are connected by a pin 17. Through the plunger 11, a shank 18 is passed, on which a nut 9, articulated with its end face to the bottom plate 3, is fed into the cavity 20, compressed air is supplied, as a result of which the upper plate 2, the lower plate 3 and wedge 15 compressed among themselves. The glass 10 is attached to the slide 1 by bolts 21.

The die holder works as follows.

During the course of the slide 1 down is stamping. In contact with the workpiece

leveling valves connected to the corresponding hole in the glass.

five

five

0

0

five

which, lying on the lower die (not shown), the pusher 9 with the piston 7 stops, and the upper die (not shown) moves further down. The product is pressed into the upper die and held there by friction forces. During the course of the slide 1 up, when the upper shtamp leaves the bottom, the pusher 9 pushes the stamped product. At this, the ejection force created by the action of compressed air on the piston 7 is closed in the system of fixedly fastened parts 3, 19 and 6., 18 and 4. Therefore, the cylinder with a cavity 20 serves only to press the parts 3 and 15 to the top p. 2 with force , a little more than their weight and the weight of the top ptamp. The adjustment of the position of the upper clamp mounted on the lower plate 3 is carried out by rotating the screw 16, which either pushes the wedge 15, intersecting the lower plate 3 up or down.

In the event of an overload at the given position, the position of the automatic machine press (for example, due to improper adjustment of the position of the bottom plate 3, when the upper and lower dies can enter into the thrust, two workpieces or a larger billet, etc. .) a plunger 11, which is a porous hydraulic cylinder with a cavity 14, an upper plate 2, a wedge 15, a lower plate 3 — the upper half of the die, as well as their associated parts 19, 6 and 18, 4 and 8, stop at that time like the slider 1 with glass 10 moves yes; | lshe. Oil from the cavity) H through valve 3 flows into the drain tank (not shown). As the valve 13 adjusts to the pressure acting on the plunger 11 with a force equal to the maximum allowed at this position, the forging parts do not break. The die holder design also allows the die to be protected against breakage during overload. To do this, valve 13 must be adjusted to the pressure corresponding to the maximum force allowed for the given H1 stage (but less than the maximum force allowed for this position). At the time of the operation of the tool 13, the clutch (not shown) that is blocked with it is turned off and the slider 1 stops. After eliminating the cause, call 12241804

In the overload state, the slider 1 raises the piston 8 not to abut the end of the glass 10.

top position. The oil from the source of the pressure die holder is again ready for operation,

In this case, the wedge 15, the bottom plate 3, and the others increase in reliability by comparing the bottom to the bottom until it is understood that the lamina 14 enters the cavity 14 and the upper technical and economic effect of the inserted 2 with the plunger 11. with the base object.

Claims (2)

1. A STAMP HOLDER OF A MULTI-POSITION VERTICAL SHEET STAMPING MACHINE, containing at each position a top plate, a bottom plate, a wedge mechanism for regulating their relative position and knots for pushing and fixing the said plates relative to the slide, made in the form of a double cylinder a stepped case, a cover, a bottom, two pistons and a pusher, characterized in that, in order to increase reliability, it is equipped with a power cylinder at each position, flaxen in the form of a cup with a stepped central hole and placed in the cup and connected to the upper plate of a hollow stepped threaded plunger, and at each position the lower piston of the twin cylinder is made in the form of a threaded ring articulated with its threaded hole with the threaded part of the said plunger and installed with the possibility of interaction with the butt of the glass, at each position the bottom of the double cylinder is mounted in the middle part of its body, while between the body, the bottom and the corresponding thread th ring formed cavity, § connected to the energy source and the power cylinder mounted between the slider and the top plate. SU ,,,, 1224180 2. Stamp holder according to π. 1, characterized in that it is equipped with mounted on each position reverse control and discharge valves connected to the corresponding hole in the glass.