Floating guide device for use on long-travel hydraulic press

Abstract

The invention relates to a floating guide device for use on a long-travel hydraulic press, which comprises a guide rail 1 and a movable piece 3 which is guided to move on the guide rail 1, wherein the guide rail 1 is fixed on a machine frame 2; the movable piece 3 is arranged on a movable beam 4 which moves up and down relative to the machine frame 2; and the guide rail 1 and the movable piece 3 form a movable pair. The key points of the structure of the deice include: the movable piece 3 comprises a support, a pre-tightening mechanism 37, a displacement regulating mechanism 33 and a roller 31; the pre-tightening mechanism 37 and the displacement regulating mechanism 33 are supported on the support respectively; the displacement regulating mechanism 33 is connected with the pre-tightening mechanism 37; and the roller 31 is arranged on the displacement regulating mechanism 33. When the device is used, the phenomenon that the movement of a movable cross beam may be unsmooth or even deadly is eliminated, and the guide movement is smooth. Meanwhile, the device can be used in combination with a dynamic leveling device to ensure accurate die closing and product precision and effectively prevent the die from being damaged by die friction caused by the positional deviation between the movable cross beam and a lower work table.

Description

technical field [0001] The invention relates to a guide rail in parts of a press, in particular to a floating guide device applied to a long-stroke hydraulic press. Background technique [0002] At present, the known press includes a movable beam, a press frame, a main hydraulic cylinder, a movable beam guide mechanism and a mold, etc. The press frame is composed of an upper beam, a lower beam, and left and right columns. The movable beam is driven by the main hydraulic cylinder along the guide rail. The mechanism executes the set actions to complete the work process. Due to the long stroke of the composite material hydraulic press and other hydraulic presses with special requirements, it is easy to cause poor operation or even jamming of the movable beam during the whole stroke due to other manufacturing errors such as the low verticality between the guide mechanism and the lower working table. [0003] The manufacturing error mentioned above will also affect the position ...

AI Technical Summary

Problems solved by technology

However, the position adjustment generated by this reaction force balance will directly act on the guide mechanism. In the case that the movable beam guide mechanism is a rigid mechanism, this dynamic leveling device will further aggravate the poor operation of the movable beam until it is stuck. die

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