Analyze structures of parts to map, select representation methods and complete sketches. Measure and obtain dimensions of the parts, compile necessary technical requirements and complete detail drawings 三、根据给定的机器或部件画出装配图 Complete assembly drawing by detail drawings ★实验内容:画出机器或部件的装配图 Contents: complete a assembly drawing of a flat nose clamp ★实验目的:进一步培养综合表达能力和画装配图的能力 Objective: improve students' abilities of detail drawing reading and assembly drawing plotting ★实验要求 Requirements 1.在画装配图之前,必须对所画的装配体有全面的认识,即要充分了解它的工 作原理、结构特点,并仔细阅读所测绘的一套零件图,根据每个零件的位置,找出 各零件间的装配关系,画出装配示意图 Complete information of the flat nose clamp, work principles and structures for example, should be obtained before starting its assembly drawings. First, detail drawings are read carefully and shape of each part is imagined then assembly relationships between parts are specified by sketches of the clamp 2.根据装配体的示意图和零件图画出它的装配图,由于该部件较复杂,所以必 须认真选定表达方案,并考虑标注尺寸、序号、明细栏、标题栏等所占位置,选定 图幅,合理布局,并按画装配图的步骤进行,完成全图。 Assembly drawing is finished according to the sketches and detail drawings. First, representation methods should be selected carefully for the complexity of the assembly Then, sizes of drawing sheets are decided accord ing to positions of dimensions, item references, item lists and title blocks. Layout of drawings should be reasonable. Finally assembly drawing is finished accord ing to the steps of drawing assembly drawings ★弄懂工作原理 Work principles of flat nose clamp: 以平口钳为例:平口钳是用来夹持工件进行加工用的部件。它主要由固定钳身 钳口板、丝杠和套螺母等组成。丝杠固定在固定钳身上。转动丝杠可带动套螺母作 直线移动。套螺母与活动钳口用螺钉连成整体,因此,当丝杠转动时,活动钳口就 会沿固定钳身移动。这样钳口闭合或开放用以夹紧或松开工件。3 • Analyze structures of parts to map, select representation methods and complete sketches. Measure and obtain dimensions of the parts, compile necessary technical requirements and complete detail drawings. 三、根据给定的机器或部件画出装配图 Complete assembly drawing by detail drawings ★ 实验内容：画出机器或部件的装配图 Contents: complete a assembly drawing of a flat nose clamp ★ 实验目的：进一步培养综合表达能力和画装配图的能力 Objective: improve students’ abilities of detail drawing reading and assembly drawing plotting ★ 实验要求 Requirements: 1. 在画装配图之前，必须对所画的装配体有全面的认识，即要充分了解它的工 作原理、结构特点，并仔细阅读所测绘的一套零件图，根据每个零件的位置，找出 各零件间的装配关系，画出装配示意图。 Complete information of the flat nose clamp, work principles and structures for example, should be obtained before starting its assembly drawings. First, detail drawings are read carefully and shape of each part is imagined; then assembly relationships between parts are specified by sketches of the clamp. 2. 根据装配体的示意图和零件图画出它的装配图，由于该部件较复杂，所以必 须认真选定表达方案，并考虑标注尺寸、序号、明细栏、标题栏等所占位置，选定 图幅，合理布局，并按画装配图的步骤进行，完成全图。 Assembly drawing is finished according to the sketches and detail drawings. First, representation methods should be selected carefully for the complexity of the assembly. Then, sizes of drawing sheets are decided according to positions of dimensions, item references, item lists and title blocks. Layout of drawings should be reasonable. Finally assembly drawing is finished according to the steps of drawing assembly drawings. ★ 弄懂工作原理 Work principles of flat nose clamp： 以平口钳为例：平口钳是用来夹持工件进行加工用的部件。它主要由固定钳身、 钳口板、丝杠和套螺母等组成。丝杠固定在固定钳身上。转动丝杠可带动套螺母作 直线移动。套螺母与活动钳口用螺钉连成整体，因此，当丝杠转动时，活动钳口就 会沿固定钳身移动。这样钳口闭合或开放用以夹紧或松开工件