依据Solid Works模具紧固件区的研发

　　凸缘模柄首先将的数据存入到数据库，然后用VB通过调用SolidWorks的API函数绘制凸缘模柄的模型，再调用数据库中的数据对模型进行尺寸参数化驱动，即可获得所需型号的凸缘模柄。程序界面如所示，用户通过选择凸缘模柄的型号及尺寸d就可调用SolidWorks创建相应的凸缘模柄模型。

　　凸缘模柄的型号及尺寸（单位：mm）d（d11）D（h6）基本尺寸极限偏差基本尺寸极限偏差用户交互界面数据的处理目前数据库开发技术主要有DAO、RDO和ADO技术。

　　由于ADO可更好地用于网络环境，而且使用简单，是一个面向高级用户的数据库接口，使用了一组简化的接口用以处理各种数据源，所以文中采用ADO进行数据操作。首先用Ac-cess建立数据库/标准件库。mdb0，在数据库中添加表/凸缘模柄0，以d作为主键让用户选择，D、h、h2，，分别对应于库的Fields（1）、Fields（2）、Fields（3），与应用程序存于同一目录下，然后用VB进行调用。程序如下。

　　定义对象变量创建新的零件图：SetPart=swApp.newpart旋转截面绘制旋转截面草，先从点1到点2绘制一条中心辅助线，再依次从点3到点8绘制1条封闭的截面轮廓。程序标注尺寸，这是后面进行尺寸参数驱动的先决条件，选择如所示尺寸值为30的直线上一点（0.09，-0.01），指定尺寸文本的位置（0.1，-0.015），即可自动标出尺寸30，其以此类推，依次标出中值为90（侧）、40、90（底）的尺寸，标注的顺序将会影响到后面的系统引用名称。

　　旋转成形，倒角后即为凸缘模柄A型的模型模柄型号判断，在/型号0ComboBox框加入如下判据：表示型号如果型号为A，即可进行尺寸参数驱动，如果型号为B、C还要打中心孔和螺钉孔。以下是创建沉孔d2孔的程序拉伸切除同理创建中心孔d1和螺钉孔d3.

　　对螺钉孔进行圆周阵列选择阵列面/切除-拉伸30选择阵列特征Pc进行阵列建模4参数化驱动把数据库中的数据付给模型特征的系统参数，模型中的尺寸参数一定要和数据库的尺寸数据对应起来c如果型号为A，只驱动以上4个参数对模型进行重建，参数化驱动模型：Part.EditRebuild即为用该程序创建的3种凸缘模柄的效果图。

　　在各个产品系列化之间以及每个系列产品中都有一些部件和大量的零件是可以相互通用的，可以将这些部件和零件选出来建立一个标准件CAD系统，在开发新产品时重复利用，可带来很可观的经济效益。利用VB开发SolidWorks建立模具标准件库是一个非常有效、实用、方便的方法，对推动模具标准化、系统化有着非常重要的意义。

　　（1）可提高企业产品开发能力、增强企业对市场的应变能力、竞争能力；（2）可促进产品结构调整、加速产品更新换代步伐；（3）可最大限度重复利用、节省资源；（4）可促进和带动现代化管理模式和管理技术的应用。

　　

Electrostatic Spray Gun

An electrostatic spray gun is a type of device used for applying a coating, such as paint or powder, to a surface. It operates by charging the particles of the coating material with a negative or positive electric charge, which then attract to the opposite charge of the surface being coated. In this article, we will explore what electrostatic spray guns are, how they work, and why they are important.


What is an electrostatic spray gun?

An electrostatic spray gun is a tool used to apply a charged coating to a surface by utilizing the principles of electrostatics. By imparting a charge to the coating material as it is sprayed, the particles of the coating become attracted to the surface of the object being sprayed, creating an even, uniform coating.


How do electrostatic spray guns work?

Electrostatic spray guns operate based on the principles of electrostatics, which states that particles that have the same charge will repel each other, while particles with opposite charges will attract. The electrostatic spray gun charges the paint, powder or other coating material with a negative or positive charge as it exits the nozzle, creating a fine spray of charged particles. When these charged particles reach the surface being coated, they are naturally attracted to the opposite charge of the surface, creating an even and uniform coating.


Why are electrostatic spray guns important?

Electrostatic spray guns play a significant role in the coating industry, primarily due to the following reasons:

  1. Increased efficiency: Electrostatic spray guns deliver a more efficient transfer of the coating material to the surface being applied, resulting in a reduction of overspray and waste.

  2. Improved quality: The charged particles delivered by an electrostatic spray gun create an even and uniform coating, resulting in a higher quality and more professional finish.

  3. Environmentally friendly: Electrostatic spray guns reduce the amount of coating material necessary for a project, resulting in reduced waste and environmental impact.

In summary, electrostatic spray guns are essential tools in the coating industry. They offer increased efficiency, improved quality, and environmental benefits compared to traditional spray methods. When used correctly and maintained regularly, electrostatic spray guns can provide a valuable tool for a range of coating applications.

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