Heating furnace for metal surface carburizing machining

Abstract

The invention discloses a heating furnace for metal surface carburizing machining. The heating furnace comprises a containing table, wherein a furnace body is arranged at the top of the containing table; a furnace cover is arranged at the top of the furnace body; movable frames are arranged at the positions, located on the two sides of the furnace body, of the top of the containing table; a firstportal frame is fixedly connected to the position, corresponding to the furnace body, between the two movable frames; a first hydraulic cylinder is arranged at the inner top end of the first portal frame; and the driving end of the first hydraulic cylinder is fixedly connected with the center of the top of the furnace cover. In the heating furnace, through the arrangement of two portal frame structures, the operations of automatically, accurately and stably opening and closing the furnace cover as well as placing and taking workpieces can be realized; through the arrangement of an integrated structure, a furnace cover opening and closing structure and a workpiece placing and taking structure can be always kept at a distance, the situation of collision is avoided, and the stable occurrenceof damage is avoided; and meanwhile, the workpiece placing and taking structure is stable in operation and always located at the position away from the furnace body for placing and taking, and the safety of the workpiece placing and taking process can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of machining, in particular to a heating furnace for carburizing metal surfaces. Background technique [0002] Carburizing: It is a kind of metal surface treatment. Carburizing is mostly low-carbon steel or low-alloy steel. The specific method is to place the workpiece in an active carburizing medium and heat it to 900--950 degrees Celsius single-phase In the austenite area, after a sufficient time of heat preservation, the activated carbon atoms decomposed in the carburizing medium will penetrate into the surface of the steel part, thereby obtaining high carbon in the surface layer, and the core will still maintain the original composition. The carburizing process occupies a very important position in the processing industry. Therefore, there is a certain demand for heating furnaces for metal surface carburizing; [0003] In some existing heating furnaces for carburizing metal surfaces, the furnace cover a...

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Problems solved by technology

[0003] In some existing heating furnaces for carburizing metal surfaces, the furnace cover and the furnace body are mostly integrated. Although such an installation method can stably open the furnace cover, the hoisting structure is easy to separate from the furnace when loading and unloading parts. The cover is touched, which leads to the problem of structural damage. At the same time, the conventional loading and unloading parts are mostly mobile hoisting, which is easy to shake during hoisting, unstable operation, and there is a risk of workpiece falling

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