Safety cock of hydraulic machine

Abstract

The invention discloses a safety cock of a hydraulic machine. The safety cock comprises a main rod; telescopic square rods are connected to the two sides of the main rod in a sleeving mode; a controller is connected to the middle of the front surface of the main rod in a bolted mode; variable-pitch slide rails are arranged on the back surfaces of the telescopic square rods; push rod mechanisms areconnected to the interiors of trays in a sliding mode through pulleys; threaded holes are formed in the top ends of cock blocks; bolts are embedded in the bottom ends of the cock blocks; buffer cushion blocks are connected to the top ends of the cock blocks in a threaded mode; electric cylinders are fixedly connected to upper parts of servo motors; and bearing plates are connected to the middle parts of the electric cylinders in a sliding mode through push rods. According to the safety cock, a double-bolt structure is adopted to improve the supporting stability of a falling mold, the phenomenon that the mold tilts by the side and gets damaged can be avoided, the height of the safety cock can be changed by adjusting the number of the cock blocks according to the height of the stroke of themold, the buffer cushion blocks can effectively increase the falling impact force, the damage caused by the collision between the safety cock and the mold can be avoided, the mold with any width canbe stably clamped by utilizing the variable pitches of the telescopic square rods, and the applicability is high.

Description

technical field [0001] The invention relates to the technical field of hydraulic machine safety devices, in particular to a hydraulic machine safety bolt. Background technique [0002] As an industrial processing equipment with liquid as the working medium, the hydraulic press is often used in forging, stamping, cold extrusion, straightening, bending, flanging, sheet drawing, powder metallurgy, press-fitting and other forming processes. High safety performance, but there is still a safety accident that the oil pressure in the hydraulic machine suddenly releases and the mold falls. Generally, a safety bolt is set for this dangerous situation to prevent the mold from falling suddenly. However, the conventional safety bolt has great limitations. Working with a single independent safety bolt, it is easy to cause the mold to fall on one side. Although it can prevent casualties caused by falling, it is very easy to damage the mold, and the height of the traditional safety bolt is ...

AI Technical Summary

Problems solved by technology

[0002] As an industrial processing equipment with liquid as the working medium, the hydraulic press is often used in forging, stamping, cold extrusion, straightening, bending, flanging, sheet drawing, powder metallurgy, press-fitting and other forming processes. High safety performance, but there is still a safety accident that the oil pressure in the hydraulic machine suddenly releases and the mold falls. Generally, a safety bolt is set for this dangerous situation to prevent the mold from falling suddenly. However, the conventional safety bolt has great limitations. Working with a single independent safety bolt, it is easy to cause the mold to fall on one side. Although it can prevent casualties caused by falling, it is very easy to damage the mold, and the height of the traditional safety bolt is limited, so the height of the bolt body cannot be adjusted according to the actual situation, and the bolt body has no cushion block. , it is easy to make it hard contact with the mold and cause the mold and the safety bolt to be damaged at the same time, resulting in huge losses

Images