Hydraulic machine with safety device

Abstract

A hydraulic machine with a safety device, characterized in that: a safety device is provided on one side of the workbench of the main machine and in an alcove recessed toward the workbench, the safety device includes a main sleeve, a fixing device, a telescopic joint, a magnetic lock, Sensor; in normal times, the entire safety device is fixed in the alcove facing the direction of the sensor through magnetic lock adsorption. When the safety device is placed in the alcove, the sensor is in the state of connecting the control circuit of the hydraulic machine, and the hydraulic machine can start normally at this time; When the safety device leaves the alcove, the sensor is in the state of disconnecting the control circuit of the hydraulic press, and the hydraulic press cannot be started normally. When maintenance or adjustment work is required, take out the safety device from the alcove, adjust the relative position between the telescopic joint and the main sleeve to a suitable place, and fix the entire installation device on one of the columns of the hydraulic press with two magnetic locks Inside, the present invention has the danger that prevents hydraulic press slide block from falling accidentally.

Description

technical field [0001] The invention relates to a hydraulic press, in particular to a safety device for adjusting and maintaining a four-column hydraulic press, and belongs to the technical field of hydraulic presses. Background technique [0002] The four-column hydraulic press is a general-purpose hydraulic press that is widely used in industrial production. During the adjustment or maintenance of the four-column hydraulic press, the slider is often required to be fixed at a fixed position, especially in the process of mold maintenance or hydraulic machine maintenance. In this case, maintenance personnel need to enter the working space of the hydraulic press. In this case, the power system of the hydraulic press is generally turned off first, and the slider is stopped at the corresponding position by using the back pressure function of the hydraulic press itself. Although this method has the advantages of quickness and convenience, However, when the back pressure system of...

AI Technical Summary

Problems solved by technology

[0002] The four-column hydraulic press is a general-purpose hydraulic press that is widely used in industrial production. During the adjustment or maintenance of the four-column hydraulic press, the slider is often required to be fixed at a fixed position, especially in the process of mold maintenance or hydraulic machine maintenance. In this case, maintenance personnel need to enter the working space of the hydraulic press. In this case, the power system of the hydraulic press is generally turned off first, and the slider is stopped at the corresponding position by using the back pressure function of the hydraulic press itself. Although this method has the advantages of quickness and convenience, However, when the back pressure system of the hydraulic press breaks down or the corresponding hydraulic system breaks down, especially when personnel misuse the hydraulic press, the slider of the hydraulic press will still drop, and this situation is very serious. Dangerous, although some hydraulic machine users will temporarily use some support tools to support the slider of the hydraulic machine to prevent accidents when doing the above work, but because there is no special support tool, it not only causes inconvenience to the above work, but also In the event that the hydraulic press is misoperated, the support device still cannot guarantee safety

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