Constant-force self-adaption operation head device

Abstract

The invention discloses a constant-force self-adaption operation head device. The device comprises a connecting rod, a fixed frame and a movable frame; a working head is mounted on the movable frame;an elastic piece and a movable driving piece are arranged between the movable frame and the fixed frame; the elastic piece is used for driving the movable frame to approach a working surface; and themovable driving piece is used for driving the movable frame to move relative to the fixed frame. The working head is always pressed to the working surface under the effect of the elastic piece; when the working surface is higher in fluctuation to cause nonuniform elastic force of the elastic piece, that is, the bonding pretightening force between the working head and the working surface is changed, the position relation between the movable frame and the fixed frame is adjusted through the movable driving piece, so that the bonding pretightening force is kept relatively constant, the deviationor tight pressing phenomenon of the working head and the working surface is prevented, and the operation effect is guaranteed; and meanwhile, the leakage of sand, water, paint and rust is reduced, sothat the adaptability of such working heads as a sand blasting head, a water spraying head and a spraying head to an operation surface is improved.

Description

technical field [0001] The invention relates to the technical field of ship manufacturing and maintenance, in particular to a constant force adaptive working head device. Background technique [0002] In the process of ship construction and maintenance, a series of treatments are required on the surfaces of the deck, outer shell, and inner bulkhead, such as sand blasting and derusting described in Patent Document 1, ultra-high pressure water derusting described in Patent Document 2, and patent derusting. The spray paint etc. which are described in document 3. The sandblasting head, water spray head, spraying head and other operation heads need to be kept in close contact with the operation surface during operation. One is to ensure the operation effect, and the other is to reduce the leakage of sand, water, paint and rust and reduce pollution. Usually, the working head adopts the method of elastic pressing to realize the lamination with the working surface. The problem with...

AI Technical Summary

Problems solved by technology

Usually, the working head adopts the method of elastic pressing to realize the lamination with the working surface. The problem with this method is that when the working surface is uneven, the expansion and contraction of the elastic parts will change greatly, so the elastic pressing force will change. The range is also relatively large, and the pre-tightening force between the working head and the working surface will change accordingly. In serious cases, the working head and the working surface may even be separated from each other or crushed to death, which will affect the normal work of the working head

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