Swing bolster and side frame integrated core preparation and core setting technology

Abstract

The invention belongs to the technical field of casting technique and flexible manufacturing, and relates to a swing bolster and side frame integrated core preparation and core setting technology. The technology mainly comprises an ester cured molding production line and a robot core locking and core setting production line. The technology uses an ester cured water glass sand self-curing technology to respectively integrate the original multichip sand cores of the swing bolster and the side frame into upper sheets and lower sheets, the upper and lower sheets are transmitted to the robot core locking and core setting production line after surface drying and placement for a certain time, the robot finishes the core locking operation of the sand core by using tri-dimensional laser scanning for precise positioning, and the well-locked integrated sand core is placed in a sand mould cavity accurately. The invention has the advantages as follows: in the operation process, chilling materials are placed easily, has good deformability and small crackle tendency of casting, thus realizing no fash and step in the inner cavity of the important parts of the swing bolster and the side frame and the expansive regions thereof, eliminating the defects such as crack caused by fash and step in the inner cavity and the like, reducing the use amount of the chaplets and ensuring the size precision of the casting thickness.

Description

technical field [0001] The invention belongs to the technical field of casting technology and flexible manufacturing, and relates to an integral core manufacturing and core setting process for a bolster and a side frame. Background technique [0002] At present, the overall core manufacturing process adopted by the domestic railway industry in the production of bolsters and side frames mainly includes the following types: [0003] 1. The core is made by resin sand cold box core shooting method, and the core is lowered by manual jig; [0004] 2. The core is made of resin sand cold core box shell, and the core is mechanically positioned by mechanical positioning; [0005] 3. Use sodium silicate sand ester hardening box to extrude and form or box lock core to make core (the length direction L and D need to be segmented), and use manual fixture to lower the core; [0006] The disadvantages of the above-mentioned integral core manufacturing processes are that when the resin san...

AI Technical Summary

Problems solved by technology

[0007] The technical solution of the present invention is to overcome the technical problems such as horizontal and vertical draping seams, steps, sand holes, wall thickness is not easy to guarantee and other technical problems in the casting inner cavity in the prior art, and the disadvantages that crack sources may be formed, and a shaking method is proposed. The production and core setting process of pillows and side frame integral cores are suitable for the production and core setting of railway vehicle bolsters and side frame integral core sand cores, and realize the grasping, handling, lock core and core setting process of sand cores Mechanical automation and intelligent production greatly improve the accuracy and speed of core setting

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