SU1110534A1 - Arrangement for pushing out forgings from forging die - Google Patents

Abstract

A DEVICE FOR PUSHING FORMINGS FROM A HAMMER STAMP containing an actuator mounted with reciprocating movement with a drive mounted in a die holder, characterized in that, in order to increase reliability of operation and reduce the pushing force, the plunger drive is designed as a power cylinder with a piston having a hollow brush, as well as a stem in the cavity with the possibility of relative axial movement of an additional piston with a rod dividing the cavity of the power chitan rod Two working chambers connected by channels made in the additional piston, its rod, as well as the rod and wall of the power cylinder and connecting the cavity of the cylinder and its rod to the atmosphere, and P1TOKI of the power cylinder piston and additional piston are installed with the possibility of interaction with the pusher, and there is a piston in the cavity of the piston rod (Ln of the power cylinder, an emphasis c is installed to limit the stroke of the auxiliary piston ...;

Description

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4 1 The isobregnation relates to the processing of metals by pressure, in particular to the construction of stamps for die forging. A die for die forging is known, which comprises a working tool, an ejector of parts located at the bottom of the working tool, an actuator mounted outside the die and connected by the ejector lever LI}. However, the stamp has a stress concentrator due to the presence of a lever, which leads to its breakage. A device for ejecting forgings from a hammer punch is known, which comprises an actuator mounted with reciprocating movement. mounted in a die holder 2 However, the known device due to (the presence of a spring actuator after each blow during de-stamping pushes the forging, which can lead to its misorientation. The spring-loaded plate weakens the die holder, which shortens its service life. The purpose of the invention is to increase reliability work and reducing the force of ejection. The goal is achieved by the fact that in the device for ejection of forgings from a hammer punch containing installed with the possibility of reciprocating a pusher with a drive mounted in a die holder, the drive of the pusher is made in the form of a power cylinder with a piston having a hollow rod, as well as a rod placed in the cavity with the possibility of relative axial movement of an additional piston with a rod separating the cavity of the power cylinder rod into two working chambers connected by channels made in the additional piston, its rod, as well as the rod and wall of the power cylinder and connecting the cavity of the cylinder and its rod with the atmosphere, and the piston rods of the power cylinder and Modes piston mounted to cooperate with a pusher, and a piston rod chamber of the actuator is mounted abutment to limit the stroke of the auxiliary piston, the figure 4 shows a device, perspective view. The device for pushing the forgings out of the hammer punch includes the body of the actuator power cylinder 1 placed in the die holder 2, the pusher 3 mounted in the die 4. In the case of cylinder 1 there is a piston with a hollow rod 5, in which an additional piston 6 is installed with a rod separating the cavity a power cylinder rod to the working chambers: upper 7, connected by channel 8 with cavity 9, and lower 10, in which travel stop 11 of additional piston 6 is located and which is connected depending on its position by channels 12 and 13 s mosferoy or channel 14 with the upper chamber 7. The cavity above the piston 15 of the hollow shaft connected with the atmosphere. A device for ejecting forgings from the lower hammer punch operates as follows. When air is supplied to the working cavity 9 of the cylinder, pressure is exerted on the forging 16 through the pusher 3 and the hollow rod 5. In addition, air entering through the channel 8 into the upper chamber 7 presses on the additional piston 6, which begins to move. the piston 6 continues to move downward until the air enters the lower chamber 10 through the channel 14, after which the additional piston 6 begins to move upward until the channel 12 coincides with the channel 13 through which the air is vented to the atmosphere. In the upper position, an additional piston 6 transfers the blow through the pusher 3 to the forging 16. The entire cycle of operation is repeated until the forging 16 is separated from the engraving of the stamp 4, then the rod 5, acting on the pusher 3, lifts the forging 16, The movement of the complementary piston 6 is stopped from the moment of closing of the channel 13. Offered; the invention possesses an oversight with a decrease in the force of withdrawal.

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Claims (1)

DEVICE FOR PUSHING OUT FORGINGS FROM THE HAMMER'S STAMP, containing a pusher mounted with the possibility of reciprocating movement with a drive mounted in a die holder, characterized in that, in order to increase the reliability of operation and reduce the ejection force, the pusher drive is made in the form of a power cylinder with a piston having hollow rod, and also placed in the cavity of the rod with the possibility of relative axial movement of the additional piston with the rod, dividing the cavity of the rod of the power cylinder by d f working chambers connected by channels made in the additional piston, its rod, as well as the rod and wall of the power cylinder and connecting the cavity of the cylinder and its rod with the atmosphere, and the piston rods of the power cylinder and the additional piston are installed with the possibility of interaction with the pusher, and in the cavity The piston rod of the power cylinder is equipped with a stop to limit the stroke of the additional piston. £ δδ <ΠΤΓ ^σΒ 7 1 1110534