Mechanical press with twin-stage air cushion device

Abstract

The invention relates to a mechanical press with a twin-stage air cushion device. An upper cylinder body, a lower cylinder body and a middle end cover are fixedly connected, the top end of the upper cylinder is fixedly provided with an upper end cover, an upper piston is connected in the upper cylinder body in a sliding and sealed mode, and a lower piston is connected in the lower cylinder body in a sliding and sealed mode; an air inlet is arranged in a piston rod, and the air inlet is communicated with an inner cavity of the upper cylinder body and an inner cavity of the lower cylinder body;and a worktable board is fixedly installed at the top end of a lathe bed, an installation table is fixedly installed at the bottom end of the lathe bed, an air cushion installation base plate is fixedly installed on the upper surface of the installation table, a support pillar is fixedly installed on the air cushion installation base plate, and the lower piston is fixedly installed at the top endof the support pillar. The mechanical press has good maintenance characteristic and also avoids the situation that the air cushion works out because waste materials or other foreign materials produced in air cushion operation enter the air cushion to damage the inner wall of the air cushion.

Description

technical field [0001] The invention relates to a mechanical press, in particular to a mechanical press with a double-stage air cushion device. Background technique [0002] At present, general mechanical presses such as figure 1 As shown, the mechanical press is equipped with a patent number: 200620165690.7 double-stage air cushion (such as figure 2 ), the air cushion is hoisted on the air cushion installation platform 35 of the mechanical press body 34, the compressed air enters the upper cavity 32 and the lower cavity 31 of the air cushion from the air inlet 24, and pushes the upper piston 8 and the lower piston 20 to move upward together, so that The buffer pad 11 that is installed on the piston 8 on this air cushion is close to the lower bottom surface 36 of the mechanical press worktable 33, and is installed under the effect of the press lower die ejector bar on the mechanical press worktable 33 The upper piston 8, the lower piston 20 and the piston rod 15 of the ai...

AI Technical Summary

Problems solved by technology

[0004] 1. There is no air cushion lubrication and oil supply port, and all kinds of sealing rings cannot be reliably lubricated when the air cushion is working, which makes the air cushion sealing ring fail prematurely;

[0005] 2. After the air cushion is installed on the mechanical press body, once a failure occurs, it is necessary to set up a pit, or lift the press before removing the air cushion for repair, and the maintenance characteristics are too poor;

[0006] 3. When the air cushion is installed on the press and the workpiece is punched, the waste and other foreign matter 37 can easily enter the air cushion and damage the inner wall of the air cushion, making the air cushion invalid

Images