Self-rotating clamping device used for rapidly changing upper anvil for forging press

Abstract

The invention relates to a self-rotating clamping device used for rapidly changing an anvil for a forging press, which relates to an auxiliary tool of the forging press. The invention solves the problems of complicated structure, unbalanced stress of a clamping shaft and low anvil changing speed in the prior art. The invention is characterized in that the top end of the clamping shaft 1 is provided with a convex shoulder 1-2, and the middle part thereof is provided with a tooth 1-3 meshed with a moving sleeve 3; the upper end of the moving sleeve 3 is a plane 3-2, and the lower end thereof isa tooth 3-1; the moving sleeve 3 is sleeved above the tooth 1-3 of the clamping shaft 1; a compression spring 2 is arranged between the upper plane 3-2 of the moving sleeve 3 and the convex shoulder 1-2 of the top end of the clamping shaft 1; the surface of the moving sleeve 3 is symmetrically provided with four moving sleeve sliding slots 3-3; the surface of the tooth 1-3 of the clamping shaft is provided with four clamping shaft sliding slots 1-3-1 which correspond to the moving sleeve sliding slots 3-3; and four glidingly matched guiding edges 4 are respectively arranged in the moving sleeve sliding slots 3-3 and the clamping shaft sliding slots 1-3-1.

Description

technical field [0001] The invention relates to an auxiliary tool for a forging press, in particular to a clamping device for quickly changing the upper anvil of the forging press. Background technique [0002] The forging press often needs to replace the upper and lower anvils according to the process requirements. When replacing the upper anvil, because it is suspended on the movable beam, generally several clamping devices installed on the movable beam are used to complete the upper anvil. replace. In order to reduce the anvil changing time, the forging press now uses such as figure 1 A quick-change clamping device on an anvil shown mainly consists of a clamping shaft 1, a working cylinder 8, a rack 7, a key 6, and a gear 5. When taking the anvil, the clamping shaft 1 moves down along the keyway until the T-shaped hook head 1-1 at its lower end is inserted into the T-shaped groove of the upper anvil, and then the working cylinder pushes the rack and pinion mechanism so ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art, to provide a self-rotating clamping device for quick-change upper anvils of forging presses, and to solve the problem of complex structure and insufficient force on the clamping shaft in the existing quick-change clamping devices for upper anvils. Problems with balance and slow anvil change

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