Start registering!! The first issue of "Calculation of threaded connections through VDI 2230 systematic method" in 2023_Shanghai Zimao Instrument Technology Co., Ltd

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Smart Fastening

Smart Optics

Zmart is a representative organization of Kistler Remscheid (formerly Schatz) in Germany and AFS Advanced Connection Technology Research Institute in China. It was funded by Zwick China and has a German enterprise background. Its headquarters are located in Shanghai, and it has a joint laboratory for fastening connection technology with Huace Testing in Shanghai.

Smart Fastening

Committed to introducing advanced fastening assembly design, testing and verification technology to assist China in intelligent design and manufacturing. We specialize in providing software and hardware products and services for fastening connections throughout their entire lifecycle.

Smart Optics

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Smart fastening

Friction coefficient testing machine

Ultrasonic axial force testing and analysis system

Thread Assembly Tool Testing System

Smart fastening wrench

Lateral vibration test bench

Simulated assembly test system

Friction coefficient testing machine

The quality characteristics of bolts and nuts during installation have a direct impact on the quality of bolted connections. Functional testing is the most important analytical method used in the assembly process. It determines the mechanical characteristics and functions of the fastening parts to ensure their quality. Simultaneously determine the friction coefficient, preload, and torque. And in this process, comply with international standards and simulate usage conditions as realistically as possible.

Ultrasonic axial force testing and analysis system

Unlike ordinary ultrasonic equipment, the Ifast ultrasonic axial force analysis and testing system Digital acquisition can be performed on the entire tightening process Short or long-term axial force monitoring of bolts Using the German professional fastener analysis and testing software TestXpert in conjunction with Kistler tightening equipment ® Conduct and process analysis

Thread Assembly Tool Testing System

In order to achieve reliable bolt connections in modern industrial production processes, a reliable tightening gun is crucial. Not only must the tightening gun be calibrated and certified before assembly, but it must also be repeatedly tested during the assembly process. The purpose is to ensure continuous high performance in order to achieve optimal assembly results and meet established standards.

Smart fastening wrench

Whether it is a soft connection tightening point or a hard connection tightening point, the torque decreases to varying degrees after completing the tightening process. How to find residual torque and how to find residual axial force has become an urgent problem that every tightening process engineer hopes to solve. The detection of residual torque values requires good tools to ensure the reliability and repeatability of the detection results. KISTLER's New Generation Intelligent Wrench Inspector has comprehensive residual torque testing function There are various built-in testing methods that can customize the detection mode according to customer needs.

Lateral vibration test bench

The lateral vibration test bench is equipped with an adjustable amplitude driving device, which is used for force sensors for lateral loads, high-precision displacement sensors, and sensors that can be replaced according to bolt size to measure clamping force and thread friction. During the vibration test, the test product is installed on the test bench according to the actual construction process, and the test conditions, such as test frequency and amplitude, are set using Kistler software. The experimental system will monitor and record in real-time the attenuation of clamping force, lateral thrust magnitude, thread torque, and other data that you are concerned about. The amplitude and frequency information during the lateral vibration testing process are controlled by the measurement and control unit.

Simulated assembly test system

In assembly testing, it is required that the test results obtained must be free of any "false evidence" - especially, if the position of the fasteners on the required test components is the actual installation conditions, this type of testing is considered challenging.

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Smart Optics

Fully automatic steel bar shape and size measuring instrument

Fully automatic bolt size measuring instrument

Imess

Fully automatic steel bar shape and size measuring instrument

Zimao Intelligent Optical Dimension Measurement is rooted in providing an overall solution for fasteners, strip steel, threaded steel, and round steel. As an industrial foundation, threaded steel has a basic tone for people's livelihood. The fully automatic intelligent optical reinforcement detection system breaks through traditional detection and lays a solid foundation for high-precision intelligent manufacturing Breaking through the pain points of traditional manual offline measurement, switching between multiple measuring tools, and the inability to effectively save and trace data, we aim to create a new scenario for intelligent optical detection. The fully automatic intelligent optical steel bar size detection system (RM) can accurately and quickly measure the transverse and longitudinal ribs, width, height, and other dimensions of various types of ribbed steel bars in multiple scenarios through built-in rich steel bar detection standards. The developed data interface enables the sharing and export of test data in multiple ways

Fully automatic bolt size measuring instrument

A fully automatic optical bolt size measuring instrument developed from Germany for measuring the overall dimensions of fasteners in different industries. This device can automatically measure the geometric shape of rotating samples such as screws and bolts. Whether placed on site or in the laboratory, this equipment can greatly integrate conventional measurement methods, improving measurement efficiency. The convenient management mode of measuring big data will become a reliable choice for fastener enterprises to make a leap in quality.

Imess

Imess is an independent manufacturer of laser and optical camera inspection equipment. Since 1998, the Imess team has solved demanding inspection tasks in optical quality assurance and developed innovative inspection technologies to support your production line in achieving efficient, high yield, and high-quality levels.

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Case Analysis

Start registering!! The first issue of "Calculation of threaded connections through VDI 2230 systematic method" in 2023

Classification： Company News

Classification： Official account tweets

Release Time：2023-05-15 18:49

设课背景

您在紧固件计算选型过程中是否遇到了这样的困扰或挑战

1.外加套管被连接件柔度如何计算？

2.螺栓扭矩转角法拧紧工艺如何能够快速计算简单确认是否合理？

3.螺栓过屈服拧紧后，为何还能承受较大的轴向载荷？

4.螺栓连接点的载荷如何都是从哪里获取的？

5.动力学仿真的连接点载荷与实际试验载荷大小有多大的差异？

6.螺栓组连接载荷如何分解到每个螺栓上？螺栓组几何设计会对载荷分解有什么样的影响？

7.实际紧固件工程师都是如何进行螺栓连接分析的？

课程大纲

主题一、VDI 2230标准简介

1.VDI2230标准简介

2.标准适用范围

3.螺栓连接受力三角形形象讲解

4.螺纹连接计算步骤

主题二、螺栓计算选型详细步骤

1.如何初步选取螺栓规格

2.如何更准确的确定拧紧系数αA

3.如何计算螺栓组最大螺栓受力载荷

4.防止开口滑移确定所需的最小预紧力

5.螺栓和被连接件中外部载荷的分配关系

6.嵌入损失计算n温度引起预紧力变化计算

7.如何考虑高温等因素确定最小、最大装配预紧力

主题三、螺栓校核详细步骤

1.如何确定最小、最大装配预紧力

2.螺栓装配预紧力计算

3.工作载荷、温度载荷作用下螺栓的应力计算

4.螺栓疲劳校核

5.螺栓接触表面压应力对预紧力损失影响及其校核

6.螺纹最小啮合长度校核

7.被连接件滑动和螺栓剪切校核扭矩法和转角法扭矩和预紧力计算及应考虑因素

主题四、螺栓计算校核案例实操及问题交流

1.按照系统化方法螺纹接头详细计算案例

2.SD PRO和space bolt螺栓计算软件计算展示

*以上课程信息不排除调整可能，以最终上课为准

讲师介绍

王军

兹懋首席紧固专家

2002年毕业于中南大学机械设计制造专业，先后从事过船用发动机紧固件，汽车底盘紧固件，新能源汽车紧固件和风电紧固件的设计计算和开发工作。现任兹懋首席紧固连接专家。精通国际主流发动机设计公司FEV, AVL, MAN，瓦锡兰紧固件设计方法和标准，熟悉VDI2230，大众，通用汽车底盘紧固件的设计标准和拧紧要求。在知名专业类杂志上发表多篇紧固件相关的技术论文，申请四项紧固件相关专利，编制《汽车底盘紧固件基础知识汇编》等书籍。曾在汽车人IND4网站上发布过多篇紧固件计算，设计相关培训课程，获得极高评价！