A lower-adjustable high-precision fast hydraulic press, its mold adjustment cylinder, and its mold adjustment method

Abstract

The invention discloses a down regulation type high-precision rapid hydraulic press machine as well as a mold adjusting oil cylinder and a mold adjusting method thereof, and belongs to the field of hydraulic press machines. The down regulation type high-precision rapid hydraulic press machine, as well as the mold adjusting oil cylinder and the mold adjusting method thereof, solves problems that an existing hydraulic press machine is big in mold adjustment error, complicated in structure and high in maintenance cost. The mold adjusting oil cylinder of the down regulation type high-precision rapid hydraulic press machine comprises a main cylinder, wherein the main cylinder comprises a main-cylinder cylinder body and a main-cylinder piston rod which is arranged in the main-cylinder cylinder body; the mold adjusting oil cylinder also comprises an auxiliary cylinder and a regulating screw rod; the auxiliary cylinder comprises a rapid-cylinder piston rod; the rapid-cylinder piston rod is arranged in a rapid-cylinder cylinder chamber at the upper end of the main-cylinder piston rod; the rapid-cylinder piston rod is fixedly connected with the main-cylinder cylinder body; the regulating screw rod is arranged in a regulating hole in the lower end of the main-cylinder piston rod. The down regulation type high-precision rapid hydraulic press machine, as well as the mold adjusting oil cylinder and the mold adjusting method thereof, can improve mold adjustment precision; further, the structure is simple; the maintenance is convenient; blanking, stretching and pressing processes can be integrated.

Description

technical field [0001] The invention belongs to the field of hydraulic presses, and in particular relates to a down-adjustable high-precision rapid hydraulic press, an oil cylinder for adjusting molds, and a method for adjusting molds. Background technique [0002] The press includes a mechanical press and a hydraulic press. The mechanical press is a forging machine driven by a crank connecting rod or toggle mechanism, a cam mechanism, and a screw mechanism. The mechanical press generally adopts the following steps to adjust the mold: 1) Manually engage the fuselage Clutch; 2) Manually rotate the large flywheel of the fuselage several times to find the bottom dead point of the slider; 3) Adjust the stroke adjustment screw above the slider to choose a reasonable mold height. This method of mold adjustment has the following disadvantages: 1) The mold, clutch, and large flywheel are far apart, and the operation is troublesome, and it takes a long time to adjust the mold; 2) Bec...

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Problems solved by technology

[0006] Aiming at the problems of large mold adjustment error, complex structure and high maintenance cost of existing hydraulic presses, the present invention provides a down-adjustment high-precision rapid hydraulic press, its mold adjustment oil cylinder, and a mold adjustment method, which can improve mold adjustment accuracy, and The structure is simple and easy to maintain, and it can integrate punching, stretching and pressing processes into one

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