夹具主体铸造工艺及其设计
摘要：本文根据夹具主体进行铸造工艺设计，通过对该铸件的结构特点、工作条件、技术条件、生产批量的分析，确定其铸造方案。并重点介绍夹具主体的造型（芯)材料的选择，分型面、浇注位置和砂箱的选择，砂芯设计、浇注系统设计以及其他系统的设计。
从图纸入手，确定其分型面，浇注位置等，再查阅资料，找出相应的数据并计算出来，不仅要保证外观形式正确，还要保证其内部数据正确，使其尺寸、结构、重量、气密性、强度和硬度等数据均在允许范围内，排屑、应吊装方便、实用安全，并与其他零件配合，无缩孔、气孔和砂眼等缺陷，满足图纸要求的各项指标。同时，为了使其可以批量生产，还要考虑到它的生产成本以及劳动生产率的问题。如果选择的工艺不符合要求，就可能出现铸造缺陷。因此，本文也将介绍铸造过程中可能出现缺陷以及防止的知识，并需要在实际生产中加强控制和避免缺陷出现。
关键词：分型面选择；砂箱设计；热处理工艺；数据；缺陷
Casting Technology And Design Of Fixture Body
Abstract：In this paper, the casting process design was carried out according to the fixture body, and the casting scheme was determined through the analysis of the structural characteristics, working conditions, technical conditions and production batch of the casting.The selection of core material, parting surface, casting position and sand box, sand core design, casting system design and other system design are introduced.
Starting from the drawings, determine the parting surface, pouring position, etc., consult the data, find out the corresponding data and calculate it, not only to ensure the correct appearance, but also to ensure the correct internal data, so that its size, structure, weight, air tightness, strength and hardness data are within the allowable range, chip removal, should be lifted convenient, practical and safe, and cooperate with other parts. No shrinkage, stomata and sand hole defects, meet the requirements of the drawings of various indicators. At the same time, in order to make it possible to produce in batches, we should also consider its production cost and labor productivity. If the selected process does not meet the requirements, casting defects may occur. Therefore, this paper will also introduce the knowledge of possible defects and their prevention in casting process, and the need to strengthen control and avoid defects in actual production.
Key words：parting surface selection ;sand box design ; heating treatment process ; data ; defects
目录
一、零件的技术要求和结构分析 3
二、工艺方案分析与确定 4
2.1、铸造方法及铸型种类、型砂配方的确定。 4
2.2、浇注位置及分型面确定： 5
三、确定工艺数据 9
3.1、工艺参数的选择 9
3.2、初步制订合箱面及确定砂箱尺寸 11
3.3、确定浇冒口系统各部分结构尺寸及出气口尺寸。 12
3.4、浇注系统、冒口、出气口、冷铁等的位置和形状。 17
四、预计生产该铸件可能产生的缺陷及防止措施。 18
4.1、气孔 19
4.2、夹砂 20
4.3、砂眼 21
4.4、热烈纹 21
4.5、缩孔、缩松 22
4.6、粘砂 23
五、结论 23
参考文献 25
参考文献
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