SU512010A1 - Bar Cutting Stamp - Google Patents

Description

one

The invention relates to the field of metal forming, in particular, to the field of bar separation without chip removal by application of shear force. The invention can be used in the design of stamps, where it is necessary to align the cutting support on a cycle with other form-changing and operations.

Lime stamps for cutting rods containing a fixed iozh mounted on the bottom plate and a knife rocked on an axis, spring-loaded to an adjustable unor, and also mounted on the top plate of the shank.

However, in such dies, it is not possible to feed the bar on the cutting position during the no-load stroke of the shank.

In order to increase productivity, the shank of the proposed stamp is made vertically, in which a roller interacting with a swinging knife is mounted for movement, and my regulator is spring loaded.

FIG. 1 shows the proposed shtami in the off position, a general view; in fig. 2- stamp at the time of cutting the bar.

The stamp contains the top plate 1 and the bottom plate 2 with a fixed knife (not shown). On the top plate 1 by means of the plate 3 and the clamp 4, the groove 5 is fixed in direction of the bush 5 in which it is installed

the shank 6, retained from the vertical movement of the indent 7, and from the radial, by the key 8. In the tail 6 of the vertical groove, roller 9 is fixed on the axis 10, which interacts with the swing of the press 11, the press (3) not shown) down and up.

Ma 1: The outer plate 2 houses the plate 12 with the guide sleeve 13 and the turret table M. The plate 12 houses the case 15, in which an oscillating knife 11 is fastened on the axis 16. To return the knife to the outcome, the first position is in the right-to-left direction 17. And to return the knife to its original position from left to right — a spring 18, which cooperates with the knife 11 through a stop 19. The spring 18 is adjusted by force using a cap nut 20 and a lock nut 21.

Stamp R. works as follows.

The top plate is moving down. Downwards: the shank 6 with the roller 9. Goes to the knife 11, the roller 9 presses his shoulder 11, turning the axis 16, cuts off the workpiece from the bar 22. In this case, the idol 11 stretches the strap 17, which tries to return it to its original position.

In the process of moving the slide of the press down, the knife 11 jumps off the roller 9 and immediately iodine returns the spring 17

to its original position, opening the hole of the fixed knife. From this point on, it is not possible to feed the pin 22 to the stop.

When the slider moves up, the roller 9 again touches the knife shoulder 11 and turns it opposite to the point of the non-sliding knife in the housing 15. In its movement to the left, the knife 11 compresses the spring 18 through the stop 19, which tends to return it to its original position. As soon as the knife shoulder 11 scrapes off the roller 9, the spring 18 will return the knife 11 to its original position.

Thus, the knife 1 crosses the bar supply line and overlaps the point of the fixed knife only during the downward movement during the contact of the roller 9 with its long arm. The rest of the time, the bar 22 is fed smoothly through the point of the fixed knife until it stops.

It is possible to change the cutoff time of the workpiece from the bar. To do this, axis 10 with roller 9 moves along the groove of shank 6 and fastens at the desired height. The closer to the lower end of the shank 6 is fixed roller 9, the earlier the moment of the pieces of the workpiece.

Claims (1)

Invention Formula A bar cutting punch containing a stationary knife mounted on a plate and a knife, a knife rocking on an axis, spring-loaded to the stop, and also a shank attached to the top plate, differing in that. that, in order to increase the manufacturing step, a vertical groove is made in the shank, in which the roller interacting with the swinging knife is mounted with non-displacement and the stop is spring-loaded with adjustable force. eleven