工程制图习题答案P31.ppt

第31页：旋转剖和阶梯剖 n第一题 n第二题 n第三题 n第四题 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 返回 1.在指定位置作出取局部剖视的主、俯视图 解析： 1. 读图的难点在左 边，主俯视图都 用剖视，提高可 读性。 2. 主视图对右边取 局部剖（波浪线 是两段的结合） 。 3. 俯视图左边取局 部剖。 4. 当剖切平面通过机件的对称平面或基本对称平面，且剖视图按投影关系 配置，中间无其它图形隔开，方可省略标注。 5. 局部剖最灵活，即可小于半剖也可大于半剖。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. P31- 2. 返回 解析： 1. 轮盘类零件。其内部结 构分布于两个相交于轴 的平面内，V面投影凌乱 难读，易用旋转剖。 2. 剖视后虽然少了物体的 形状，虚实高低却会表 达的更清楚。 A A A A-A Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. P31- 3. 返回 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 返回 解析： 1. 保留俯视图上的虚折线可省 去左视图。 P31- 4. A A AA A - A Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 返回 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client