SU361008A1 - SCREW PRESS MOLOT - Google Patents

Description

one

The invention relates to the field of metal forming and is intended for cold and hot forging, stamping and calibration.

A screw press hammer is known that contains a drive cylinder fixed on a bed, mounted in bearings on a bed a running nut-flywheel with a non-self-braking thread and mounted in it a screw plunger connected by means of a frame to a piston rod of a power cylinder on which the slide is attached.

The described press hammer differs from the well-known one in that, in order to increase productivity and increase energy intensity, it is equipped with a screw counterplunger installed in the running nut of a hook-up axle coaxially with a screw plunger, as well as screw counter plunger.

The proposed press hammer is shown schematically in the drawing.

The press hammer includes: a bed / in which the slider (frame) 2 and the lower additional slider 5 move; a screw plunger 4 and a counter plunger 5 with opposite non-braking threads, connected with a flywheel nut 6; hydraulic (or pneumatic) drive cylinder 7 with piston 8,

rod 9 and seals 10. Rams carry dies 11.

Press hammer works as follows. The working fluid (or gas) enters the cavity A of the drive cylinder and, acting through the piston 8 and the rod 9 on the slider 2, moves the latter down. The plunger 4, which is strictly connected to the slider 2, is connected with the other by means of a motor by moving the nut relative to the nut.

flywheel spins the last. The nut-flywheel, unwinding, stores the kinetic energy of rotation used to deform the forging, acts on the counter plunger 5 with the opposite non-braking thread, moves it and the associated slide 3 upwards. There is a counter movement of the sliders.

To make a return stroke, the working fluid (or gas) enters the cavity B

The working cylinder and through the piston 8 and the rod 9 moves the slider 2 and the plunger 4 connected with it upwards. The nut flywheel rotates in the opposite direction, screwing onto the counter plunger 5, moves it and

associated slider 3 down.

The screw press hammer can be made with the upper grinding of the screw mechanism, as well as horizontal.

The invention is not limited to the above described embodiment. Can

other uses and other embodiments not exceeding the scope of the invention may be contemplated.

Subject invention

Screw press hammer containing a drive cylinder fixed on a frame, mounted in bearings on a frame a running nut-flywheel with a non-braking mechanism

threaded and mounted therein a screw plunger connected by means of a frame to a piston rod of a power cylinder, on which a slide is fastened, characterized in that, in order to increase productivity and increase energy intensity, the screw slide valve is coaxially mounted to the screw plunger and in guide beds there is an additional slide coaxially slider rigidly connected to the screw counterplunger.