Stamping stretching full-automatic production device and control method thereof

Abstract

The invention discloses a stamping stretching full-automatic production device and a control method thereof, and aims to provide the stamping stretching full-automatic production device which is highin stability, simple in structure and high in practicability. The stamping stretching full-automatic production device is characterized in that a first buffer oil path comprises a first buffer valve and a first on-off valve, a valve cavity of the first buffer valve is internally provided with an inner valve core, the inner valve core includes a mesa portion and a planar portion, the mesa portion is located in an oil return cavity, the planar portion is located in a re-pressing cavity, a mesa area of the mesa portion is less than the planar portion, the inner valve core is provided with a plurality of through holes communicating with the oil return cavity and the re-pressing cavity, a reset spring is arranged in the re-pressing cavity, and when a workpiece reaches a predetermined stretchingvalue, the first buffer valve is gradually closed by gradually closing the first on-off valve, and when the pressure of the valve core in the first buffer valve is gradually reduced from the pressureof a hydraulic pump until the first on-off valve is closed, the first buffer valve carries out the acting force of the reset spring, so that the plugging effect on the first buffer valve is formed; and the stamping stretching full-automatic production device is suitable for the technical field of machining equipment.

Description

technical field [0001] The invention relates to the technical field of mechanical processing equipment, more specifically, it relates to a stamping and stretching automatic production device and a control method thereof. Background technique [0002] Stretch forming is a stamping method that uses a die to form a flat blank into an open hollow part. As one of the main stamping processes, stretching is widely used. Thin-walled parts of cylindrical, rectangular, stepped, spherical, conical, parabolic and other irregular shapes can be made by stretching process, and parts with more complex shapes can be manufactured if combined with other stamping forming processes . [0003] At present, the stamping and stretching full-automatic production device on the market includes a piston processing system, a transmission system and a composition. The piston processing system consists of a punch press, a first hydraulic press, a second hydraulic press and a third hydraulic press. The tr...

AI Technical Summary

Problems solved by technology

In the production of traditional stamping and stretching automatic production equipment, it is necessary to control the hydraulic control part. How to control the hydraulic pressure, ensure the stability of processing, and ensure the accuracy of processing are all current problems. At the same time, the traditional hydraulic processing method , when the equipment is stopped or started suddenly, hydraulic shock will occur, and the shock pressure can be as high as 3-4 times the normal working pressure, which will damage the components, pipes, instruments, etc. in the hydraulic system and affect the work of the hydraulic system stability and reliability

Images