Casting process of frame saw bearing seat

Abstract

The invention discloses a casting process for a bearing seat of a frame saw, belonging to the technical field of casting production, comprising the following steps: (1) making a mold of a mold plate;(2) making an upper sand box and a lower sand box; (3) making a first sand core insert and a second sand core insert; (4) processing a flow channel and a heat riser; (5) smelting iron; (6) closing thebox and pouring; (7) dropping sand; (8) cleaning castings and shot peening. The casting process for a bearing seat of a frame saw adopts a one-mold and two-cavity forming method, and casts two castings at one time, thereby improving the production efficiency; the production quality of the bearing seat of the frame saw can be ensured by arranging the heat riser and a fan-shaped pouring port; a mounting hole in the surface of the bearing seat of the frame saw can be molded out while producing the bearing seat of the frame saw by installing the stable and convenient first sand core insert and second sand core insert, and subsequent machining procedures are reduced.

Description

technical field [0001] The invention discloses a casting process of a frame saw bearing seat, which belongs to the technical field of casting production. Background technique [0002] The frame saw is mainly used for the processing of large blocks such as marble and artificial stone, including flywheel, large shaft, saw frame (saw blade installation frame), connecting rod, left and right guide rail bodies (or hinge mechanism), column, lifting transmission device and transportation The feed truck and the frame saw bearing seat are used to install the large shaft and the bearing, and the large shaft drives the flywheel to rotate to generate a large centrifugal force, which makes the bearing and the bearing seat receive a relatively large impact force. Once the frame saw bearing seat cracks, it will be damaged. There may be safety accidents, so it is necessary to produce high-quality frame saw bearing housings to meet market needs; currently, frame saw bearing housings are gene...

AI Technical Summary

Problems solved by technology

[0002] The frame saw is mainly used for the processing of large blocks such as marble and artificial stone, including flywheel, large shaft, saw frame (saw blade installation frame), connecting rod, left and right guide rail bodies (or hinge mechanism), column, lifting transmission device and transportation The feed truck and the frame saw bearing seat are used to install the large shaft and the bearing, and the large shaft drives the flywheel to rotate to generate a large centrifugal force, which makes the bearing and the bearing seat receive a relatively large impact force. Once the frame saw bearing seat cracks, it will be damaged. There may be safety accidents, so it is necessary to produce high-quality frame saw bearing housings to meet market needs; currently, frame saw bearing housings are generally produced by casting because of their large dimensions, and other types of bearing housings are generally used in bearing housings The two ends of the bearing housing are poured and formed, and the molten iron at both ends converges in the middle. Since the molten iron in the middle is lower than the temperature of the molten iron at both ends, a large shrinkage and shrinkage cavity are generated in the middle of the bearing seat, while The middle part is directly matched with the bearing, and the impact force is large, so the shrinkage and shrinkage cavity reduce the service life of the bearing seat, and the frame saw bearing seat is larger than other types of bearing seats, and the middle part produces greater shrinkage and shrinkage cavity, and the mounting holes on other types of bearing seats are completed by subsequent machining. If the frame saw bearing seat is also used in a similar method, the processing procedure and difficulty will be increased, and the production cost will also be increased.

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