Category: Manufacturing Technology knowledge

For machining enterprises, in order to meet the needs of product expansion of the company, it is necessary to refine and revise the man hour quota of the CNC machining center according to the existing production situation of the company, the company's experience for many years, and the production process and characteristics of different models. Next, we will specifically introduce how to formulate the machining hours of the CNC machining center. 1. The significance of working hours in NC Machining Center Considering the current technical level and management level of the enterprise, improve the operation conditions and improve the operation…

Various engine factories at home and abroad have used CNC follow-up grinding machines to complete the processing of cams, and the follow-up grinding machines have completely replaced the eccentric fixture grinding in the past. The follow-up grinder can not only realize the different rotational speeds required for rough and fine grinding, but also automatically change the speed at different curve segments of the cam / crankshaft swing, so as to ensure that the grinding force and grinding amount of each grinding point on the profile are consistent. The flexibility, efficiency and accuracy of the grinder are greatly increased. For example,…

Because the ordinary lathe does not have the programming function like the CNC lathe, and cannot realize the automatic control of the tool head travel, it cannot directly process the spherical surface. The inner spherical surface processed by the CNC machining center is accurate in size and high in accuracy. However, for the workpieces with small quantity and large diameter of inner spherical surface, it is too expensive to use large CNC vertical lathe, and some errors will occur. So how to eliminate the error of NC machining spherical surface? Let's introduce it in detail. 1、 Causes of errors in…

In recent years, 3D printing technology has been paid more and more attention. The research on key technologies has made breakthroughs and the performance has been continuously improved. The application in the military field has made important progress and entered the fast lane of development and application. 3D printing will be widely used in the design of weapons and equipment, the manufacture of complex and expensive components, and maintenance support, and will have a positive impact on the development of weapons and equipment. Compared with traditional manufacturing, 3D printing technology has the advantages of low cost, high speed, good complex…

At the beginning of the design, the structural shape of the parts needs to meet two major requirements, one is the design requirement and the other is the process requirement. At the same time, the structural design of parts should consider not only industrial aesthetics and modeling, but also technological possibility. Most of the common structures on parts are obtained by casting (or forging) and machining, so they are called process structures. Understanding the common process structure of parts is the basis for learning part drawings. Casting process structure on parts 1. Cast fillet In order to facilitate the casting…

Automation based on monitoring computer (PC), programmable controller (PLC), human machine interface (HMI), intelligent instrument, industrial control communication network DCS (distributed control system) and FCS (field bus control system) has become the technical pillar of modern factories and has been widely used in modern production lines at home and abroad. According to the statistics of relevant departments, among the PLCs shipped worldwide in recent years, according to the end users, automobiles account for 23%; Food processing accounted for 16.4%; Chemical industry accounted for 14.6%; Metal mines accounted for 11.5%; Papermaking accounts for 23.1%. It can be seen that the application…

Hydraulic plate shearing machine is a kind of plate shearing machine driven by hydraulic pressure. With the help of the moving upper blade and the fixed lower blade, a reasonable blade gap is adopted to apply shear force to the metal plates of various thicknesses, so that the plates are broken and separated according to the required size. What this article will introduce to you today is the working principle and operating procedures of the hydraulic plate shears? If you want to know about children's shoes, please follow me to have a look! The main performance characteristics of the hydraulic…

Intelligent hardware, HTTP protocol and JSON data format, especially restful API, are undoubtedly dominant. Various cloud services and data transmission are based on these protocols. JavaScript provides the best support for HTTP and JSON. When the system is developed with JavaScript, it naturally connects the cloud services and cloud resources on the Internet. Intelligent hardware, including cloud storage, cloud computing and a series of resources, can be easily called, just like you access various cloud services on your mobile phone. The rise of microservice architecture on the server side allows each node written in JavaScript to serve as a microservice…

1. The connection between the servo motor shaft and the lead screw is loose, causing the lead screw and the motor to be out of synchronization, resulting in dimensional error. During detection, it is only necessary to make marks on the coupling between the servo motor and the lead screw, and move the workbench (or tool rest) back and forth with a fast rate. Due to the inertia of the workbench (or turret), the two ends of the coupling will move relatively. This kind of fault usually shows that the machining size changes only in one direction, and it can…

Introduction: Spiral wound gasket mainly includes metal wound gasket, graphite wound gasket, graphite metal wound gasket, metal graphite wound gasket, inner and outer ring wound gasket, metal asbestos wound gasket, metal tetrafluorocarbon wound gasket, etc. The spiral wound gasket is made of "V" shape (or "W" shape) metal belt and non-metal belt overlapping each other and continuously wound. The metal belt is fixed by spot welding at the beginning and end. Performance characteristics: 1. It is applicable to a wide range of working conditions. It can withstand high temperature, high pressure and adapt to the service conditions under ultra-low temperature…