钻针形状自动检测系统设计+CAD图纸
毕业论文关键词： 钻针；自动化；检测
Holing needle Shape Automatic Detection System Design
Abstract: In printed circuit board manufacturing process, to assure the quality of the holing needle by drill PCB eligibility plays a very important role. In view of the present domestic holing needle detection means, this paper studies based on image detection technology of holing needle optical automatic test system development technology. Based on the analysis of holing needle detection requirements under the premise of this article first design the overall structure of the system, and some parts of type selection and design, such as transmission mechanism, testing agency, etc., and the system framework from the perspective of information flow to give the detailed specification, and the system in some parts such as shaft, bearings for checking. On this basis, in this paper, the system involves the design of the hardware system of. First using circular LET lighting system is designed in the top of a imaging lens reflex lighting solution. For drill skewed, beard needle surface was designed and then using telecentric light path to optical imaging of imaging scheme, finally according to the need of holing needle detection, CCD sensor, image acquisition card for the selection.
Key words: Holing needle; Automation; Detection
目录
1 绪论 1
1.1 本课题的目的及意义、国内外的研究现状、水平以及发展趋势 1
1.1.1 课题的目的和意义 1
1.1.2 国内外研究现状、水平与发展趋势 2
1.2 文献查阅 3
1.2.1 文献综述 3
1.3 方案论证 3
1.3.1课题任务 3
1.3.2总体系统结构 4
1.3.3 本课题的基本内容 4
1.3.4 本课题的重点 5
1.3.5本课题的难点 5
1.3.6卡盘 5
1.3.7钻针检测流程 6
1.3.8系统的设计与元器件选型。 7
2 总体结构设计 12
2.1 卡盘设计 12
2 .2电机选择 12
2.2.1卡盘转动所需扭矩 12
2.2.2轴转动所需扭矩 13
2.2.3系统所需总扭矩 13
2.3轴的设计计算 14
2.4齿轮的设计计算 15
2.5轴承的选型与计算 17
3 检测部分系统设计 19
3.1丝杆选型与计算 19
3.1.1丝杆的设计材料 19
3.1.2选螺纹牙型 19
3.1.3螺纹直径计算 20
3.1.4精确校核丝杆强度 20
3.1.5按耐磨性计算，确定螺母高度 21
3.1.6验算自锁条件 21
3.2螺母设计 21