Keywords:the micrometer As early as the 18th century, the micrometer appeared on the manufacturing stage in the development of the machine tool industry. Micrometer is still one of the most common precision measuring tools in the workshop. Today, xiaobian will briefly introduce the birth and development of the micrometer for you. Initial attempt to measure length with thread The first use of the thread principle to measure the length of an object was realized in the 17th century. In 1638, astronomer W. Gascogine of Yorkshire, England, applied the thread principle to measure the distance of stars. Later, in [...]
About 易进This author has not yet filled in any details.
So far 易进 has created 114 blog entries.
Yijin Hardware Tells You What Preparation Should be Done Before Programming of the CNC Machining Center易进2021-10-22T11:44:38+08:00
Keywords:machining center,CNC machining center,CNC machining For our CNC machining center, any production operations are inseparable from this step of programming. Programming directly affects the efficient production and safe processing of our workpiece. Then what's the work before programming? What should I do? After determining the processing technology, before programming to understand: 1,Workpiece clamping mode; 2, the size of the workpiece hair embryo ---- in order to determine the scope of processing or whether the need for multiple clamping; 3, the workpiece material ---- in order to choose what kind of tool processing; 4, inventory of knife with what ---- avoid [...]
Keywords:CNC,CNC milling, CNC turning,CNC machining How many steps did you take to become a CNC programmer? Step 1: Must be a good craftsman. CNC machine tools set drilling, milling, boring, reaming, tapping and other processes in one. The technical quality of the craft personnel is very high. Numerical control program is a computer language to reflect the process of processing technology. Craft is the foundation of programming. You can't program if you don't know the craft. In fact, when we chose the mechanical cutting processing this career, it means that the early industry is hard, dry coarse. A little basic [...]
Keywords:how to choose the thread thickness For those who know a little about bolts, I'm afraid they all know that in addition to the size of the thread, there is also the difference between coarse teeth and fine teeth. Even if the same size, if a thick tooth and a fine tooth, or can not be used together. The so-called, different ways do not conspired with each other. So, how to choose thick teeth fine teeth? Let's first look at where the metric teeth come from. As we know, the British Empire with its strong industrial strength, its dominant inch [...]
Keywords:fastener,fastener loose prevention,nuts As mentioned earlier, the fastener lockout is merely to delay the shedding of the bolt/nut to buy time for maintenance. So is there really no specific drug to prevent loose? The answer seems less pessimistic. Japanese Hard lock nut anti-loosening principle: this nut is used in pairs, divided into concave nut and convex nut, pay attention to the sequence of installation, convex nut in the lower part of the first, concave nut in the upper part of the rear. Convex nuts are manufactured by eccentric processing, concave nuts are normal center round processing, when the two convex and [...]
Keywords:thread, Who invented thread? At first, I thought it was bound to be an unsolved mystery. Just like "who invented chopsticks", it is the collective wisdom of countless people who eat melons. However, after a bit of searching on the Internet, there are some interesting stories about thread. Food is the primary productive force. Like many great things in the world, the original thread was about eating and drinking. The ancient Greek mathematician Architas is credited with inventing threads from wood to press olive oil and grape juice between 428 and 350 BC. Over 300 BC, the ancient Greek mathematician [...]
Keywords:screw The screw is called "industrial rice", have you ever thought how to come to such a small screw? Today, let's take a look at the past life of a screw. A screw usually goes through 5 steps: (1) drawing; (2) cold heading; 3. Rub silk; (4) Heat treatment; ⑤ Surface treatment. [drawing] is to pull the coils of steel wire out of the steel mill to make the wire rod of the right thickness, soft and hard, the process is like lanzhou noodles :) [Cold heading] metal metamorphosis, a key step in the formation of screws. Through a series [...]
Keywords:CNC 5-Axis This article is suitable for students who have mastered the basic theoretical knowledge of three-axis programming and five-axis programming, and try to continue to learn the five-axis programming in depth. Five axis programming core three parameters: drive method, projection vector, knife axis. Driving method: The common methods include streamline (more intelligent), surface (set cutting direction, step moment, cutting mode and other parameters), boundary, etc. After the driving method is determined, the driving geometry is selected, and the driving geometry is used to generate the first "virtual tool path", and the rationality of the tool path is observed, and then [...]
Yijin Hardware Tells You Cutting Speed, Knife Amount, Feed Speed and Three calculation formulas for CNC Machining易进2021-10-22T15:19:31+08:00
Keywords:CNC, CNC machining,CNC machining cutting speed, knife amount, feed speed three calculation formula CNC programming, the programmer must determine the cutting amount of each process, and in the form of instructions written into the program. Cutting parameters include cutting speed, knife back and feed speed, etc. For different processing methods, different cutting parameters need to be selected. 1, The selection principle of cutting parameters Rough machining, generally to improve productivity, but also should consider the economy and processing costs; In semi-finishing and finishing, cutting efficiency, economy and processing cost should be taken into account on the premise of ensuring the [...]
Keywords:reasons for screw tap fracture 1. The Poor quality screw tap: Main materials,tool design,heat treatment, machining accuracy, coating quality, etc. For example, the size of the transition section of the tap is too different or the design of the transition corner is not rounded, resulting in stress concentration, easy to fracture at the stress concentration during use. The cross section transition at the junction of shank and blade is too close to the welding port, resulting in the complex welding stress superimposed with the stress concentration at the cross section transition, resulting in a large stress concentration, which leads to the fracture of [...]