Mixed cleaning type thermal expansion type metal surface all-dimensional lossless rust removal machining device

Abstract

The invention discloses a mixed cleaning type thermal expansion type metal surface all-dimensional lossless rust removal machining device which comprises a bottom plate, a temperature difference convection type two-way change self-vibration thermal expansion pretreatment mechanism, a multi-step gradual hammering and extruding mechanism, a preloading pneumatic type feeding mechanism and a flexible pneumatic film magnetic mud mixed full-grinding mechanism. The invention belongs to the technical field of metal rust removal processing, and particularly provides a method for pre-processing a rusty metal part through circulating hot air flow, and for thin and soft metal and precise metal parts which are irregular in surface shape, easy to deform and difficult to fix, machining the rusty metal part through the circulating hot air flow under the condition that no positioning element exists. Magnetic mud and metal particles are driven to generate multi-angle and all-directional friction with pretreated metal through a multi-step progressive hammering and extruding mechanism, so that lossless full polishing of metal parts is truly realized, and the metal parts can be fully polished without any dust removal mechanism. And on the contrary, the mixed cleaning type thermal expansion type metal surface all-dimensional lossless rust removal machining device is good in dust removal effect.

Description

technical field [0001] The invention belongs to the technical field of metal descaling processing, and specifically refers to a mixed cleaning thermal expansion type metal surface all-round non-destructive descaling processing device. Background technique [0002] At present, there are many derusting methods in life, which can be roughly divided into manual derusting, mechanical derusting, chemical derusting and ultrasonic derusting. Among them, manual rust removal has high labor intensity, low work efficiency, unstable quality, and manual rust removal is easy to generate a lot of dust, and the working environment is poor; the principle of mechanical rust removal is to use impact and friction to effectively remove rust and dirt. , mostly use electric grinding wheels, electric brushes, derusting guns, etc., but these mechanical derusting tools still need to be manually held and operated, which is labor-intensive and poorly applicable to parts with complex geometric shapes and...

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a mixed cleaning thermal expansion type metal surface all-round non-destructive derusting processing device, which utilizes the difference in the expansion of metal and rust after heating, and creatively combines the principle of thermal expansion and cold contraction. Introduced into the field of metal rust removal technology, the rusty metal parts are pre-treated by circulating hot air flow, so that the rust is dehydrated and cracked loosely, through the convection of cold air and hot air due to the temperature difference, and with the two-way shape memory alloy pulling The change of shape when the piece is cold or heated realizes the self-vibration of the metal piece, which makes most of the rust fall off and separate from the metal surface. Under the condition of cutting off the grinding and clamping mechanism, the rust and rust are realized by using the difference in material of the metal and the rust itself. For the pre-separation of metal parts, for thin and soft metals and precision metal parts with irregular surface shapes, easy deformation, and difficult to clamp and polish, flexible films are used to replace traditional three-dimensional structures. At the same time, starting from reverse thinking, traditional static grinding is converted For dynamic grinding, the magnetic mud with both liquid fluidity and solid magnetic material is used to mix with metal particles, and the outer self-adaptive flexible airbag is used to fully wrap the metal parts. Without any positioning components, The multi-level step-by-step beating and extrusion mechanism drives the magnetic mud and metal particles to produce multi-angle and all-round friction with the pretreated metal, which solves the problem of clamping and grinding thin and soft metals and precision metal parts (realizing the metal Surface derusting treatment), and at the same time, it is impossible to clamp and polish thin and soft metal and precision metal parts (to avoid metal parts being deformed by force), which truly realizes the non-destructive full grinding of metal parts, and at the same time, the magnetic mud Its own viscosity fully adheres and absorbs the dust generated by grinding. Without any dust removal mechanism, it achieves a good dust removal effect and realizes the self-cleaning of metal parts after grinding, which solves the root cause of rust removal and grinding. Dust, environmental protection and clean, to ensure an excellent production and processing environment

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