Lost foam digital processing method and its equipment

Abstract

The invention relates to a lost foam digital processing method and equipment thereof. The method steps of the invention include: dissecting the CAD model of the lost foam, converting the CAD model into numerical control codes, cutting and processing the blank of the lost foam, removing waste, and post-processing the appearance of the lost foam. The equipment of the present invention includes a base (50), a bed (70), a multi-axis motion system (80), a drive system (90), a cutting system (60), a waste adsorption collection system (40) and a special control system (10 ). The method and equipment of the present invention realize immediate negative pressure chip removal through the hollow-structured machining spindle (62) and cutting tool (61), and the waste chips will not stick to the cutting tool (61) and affect processing. The invention not only improves the precision and quality of products, saves raw materials, but also shortens the research and development cycle of new casting products, and is especially suitable for single-piece, small-batch large and medium-sized castings for lost foam casting.

Description

technical field [0001] The invention relates to a lost foam digital processing method and equipment thereof, and belongs to the cross technical field of casting and numerical control processing. Background technique [0002] Casting is one of the most important ways of forming metal parts. With the globalization of the market and the intensification of competition, the speed of product replacement is accelerating, and the demand for single-piece and small-batch castings is increasing. Lost foam casting, as a precision near-net shape method whose casting precision is between sand casting and precision casting, due to its flexible design freedom and no need for combination and positioning of sand cores, it can significantly reduce the machining allowance of castings, and can even Instead of assembly and welding, it is especially suitable for new product development and small batch production of castings. [0003] As the key technology of lost foam casting, the precision form...

AI Technical Summary

Problems solved by technology

Use cutting templates and mechanical equipment such as plane cutting machines, vertical cutting machines or automatic cutting machines to cut lost foam blanks, cut out lost foam parts, and then manufacture lost foam shapes by bonding. The processing accuracy and quality are low, and It is a waste of raw materials, which greatly increases the processing cost of the disappearing pattern, and the cycle is longer, which cannot meet the development of new products, especially the single-piece and small-batch production of machine tool beds and automobile panel molds.

[0004] Aiming at the shortcomings of the traditional single-piece and small-batch lost foam casting process and equipment, the present invention proposes a lost foam digital processing method and its equipment, which can directly process and manufacture various shapes of lost foam, improving the The surface quality and processing accuracy of the product shorten the production time of the lost foam pattern and realize the rapid production of the casting research and development stage

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