SU496931A1 - Crank horizontal press for hot stamping - Google Patents

Description

one

The invention relates to the field of metal forming, more precisely to the manufacture of forgings with an elongated axis.

Presses are known for hot forging long forgings of small cross section. In this case, forgings can only be axisymmetric.

The purpose of the invention is to increase productivity, increase metal utilization and automate the process.

This is achieved by the fact that the guides of the two sliders are aligned, the sliders are installed one after the other, and the press is equipped with a kinematically connected receiver and a stripper, the working area is formed by the surfaces of the tool of the stamp installed on the frame and the deforming slide, and working surface of the receiver.

In addition, the receiver can be made in the form of a guide bar with an emphasis, a connected lever system, a driven cam with a fist, and a puller made in the form of a fork, also coupled with a lever system, a piston mounted above the tool with the ability to move perpendicular to the axis

creek stamp by notches made in both halves of the stamp.

FIG. 1 shows schematically a press,

side view; in fig. 2 - the same, top view;

in fig. 3 is a view A of FIG. one; in fig. four -

section bb in fig. 2; in fig. 5 - section

B-B in FIG. 3

Crank horizontal press for hot stamping of forgings with elongated

The axle, for example double-sided wrenches, consists of a bed 1 in which a driving slider 2 is mounted, connected with a crank-drive mechanism and a drive 3. Aligned with the direction of movement

The drive slider is fitted with an additional deforming and clamping slider 4, which is connected by means of the mechanism 5 with the cam 6 located on the crank shaft of the drive. Plozun 4 backed up

spring 7, providing him with a return to the extreme right position, in which between the halves of the punch 8 and 9, mounted on the frame and the deforming-clamping slider, a space is formed,

bounded below by the receiver 10, made in the form of a guide bar with a stop. The receiver is connected to the crank fist 12 via levers and mounts 11. Half of the stamp and the receiver form the space where the workpiece enters. A puller 13 is mounted above the stamp, which, like the deforming-clamping slide with the receiver, is connected by levers and arms 14 to the fist 15 of the crank. Both halves of the stamp have recesses on the sides of the profl stream, which provide the entrance of the puller for dousing the forgings in case of its sticking in the stream. The process of removing the stuck forging is shown in FIG. 4 and 5. To feed the workpiece into the working space, the press has a tray 16 with a pneumatic cylinder (in Fig. 2 conventionally shown) or a pneumopulse feed.

The press works in the following way.

At the signal of the corresponding controller, the profiled or non-profiled billet enters the working space of the receiver 10 until it stops and through any device, such as a limit switch located on the receiver, turns on the press clutch. Drive slider 2 will start the working stroke. In this case, the fist 6 through the mechanism 5 will move the deformed e-clamping slide to the left in such a way that the workpiece will be sandwiched between the die halves. After the workpiece is clamped, the fist 12 t gami 11 will remove the receiver 10 from the working space. The position of the workpiece and the receiver is shown in FIG. 3. The slider 2 at this moment will approach the slider 4 and move it to the extreme left position, having deformed the workpiece with the die halves 8 and 9. When the slider 2 reverses, the slider 4 springs 7 back to the extreme right position. Then, the puller 13 from the knuckle 15 will remove the forged piece from the stream, moving down with its oblique faces a and b (Fig. 5) and drop it down onto the conveyor (not shown in the diagrams).

Since the puller has two pairs of oblique faces, it is possible to remove forgings from any half of the die. If the forging does not stick to the die's creek, the puller is idled.

Return puller 13 and receiver 10

The initial position is derived from the corresponding, their fists before the brake stops the crank shaft. Then the cycle is repeated.

The die is cooled and descaled through channels in the receiver or in the special crossbar of the stripper. In the description and in the diagrams given the design of the press with a drive deforming-clamping the slide, the receiver and puller from the fists, crank shaft. It is possible to design a press with an individual drive of these mechanisms, for example, from pneumatic cylinders with an electric control circuit.

Claims (3)

1. A crank horizontal press for hot stamping of forgings with an elongated axis, mainly double-sided wrenches, containing a drive mounted on the frame and sliders connected to the drive, placed in guides, and also a tool for stamping, characterized in that, in order to increase productivity, increase metal utilization and automate the process, the guides of movement of both sliders are coaxially arranged one after the other, and the press is equipped with a receiver and a puller kinematically connected with the slider formed by the surfaces of the tool stamp installed on the frame and the deforming slider, and the working surface of the receiver. 2. A press according to claim 1, characterized in that the receiver is made in the form of a guide bar with an emphasis, an associated system of levers, and a fist with a drive. 3.Press according to claim 1, characterized in that the puller is made in the form of a fork, connected by a system of levers, t and a fist with drive and installed above the tool with the ability to move perpendicular to the axis of the stamp along the grooves made in both halves of the stamp. 8 3 7 For response FIG. 2 "Iiiv: .. ". WST d i / d