When programming, it is important to choose the CNC tool correctly. The general requirements for CNC tools are easy installation and adjustment, good rigidity, high precision, and good durability. Based on this, the cutting performance of the workpiece material, the machining capability of the machine tool, the type of CNC machining process, the cutting amount, and the machine tool are taken into consideration. Numerous factors related to the working range of the numerical control device. 1....
Maschinenfabrik Reinhausen has optimized the CNC machining tool magazine. Tool preparation, intelligent magazine replacement, and a large amount of graphic information on the CNC have become the focus of innovation. Figure 1 Maschinenfabrik Reinhausen processes approximately 8 million parts per year on 30 machine tools, using approximately 9,000 different NC programs for this purpose Maschinenfabrik Reinhausen, together with the Motion Control Business Unit of the Siemens Automation and Drives...
The processing process planning refers to the entire process, and cannot be judged by the nature of a certain process and the processing of a certain surface. For example, some positioning datums need to be processed accurately in the semi-finishing stage and even in the roughing stage. Sometimes, in order to avoid dimensional conversion, some minor surface semi-finishing can also be arranged during the finishing stage. When the machining method and the machining stage of the part surface are...
CNC machining has become more and more widely used in today's machinery manufacturing and processing industry. In particular, economical CNC machine tools are widely used in some enterprises, especially small and medium-sized enterprises, due to their wide range of processing, high efficiency, stable quality, and low prices. The application and development. However, in popularization and application, problems such as long preparation time, large processing errors, accidents or the like are...
Eclipse Mold has set a good example for effective zero-tolerance machining in high-end machining centers. For mold makers, it is strongly hoped that the machining of the mold can reach zero tolerance level of zero tolerance, and Eclipse Mold mold company just proved this fact. The company has a mold processing workshop, which can produce about 140 sets of molds per year, including a considerable number of mold repair services, but this business only accounts for about 40% of its total workload....
After introducing the CNC machining system into the manual production process in the past, the entire processing plant has embarked on a lean manufacturing path and now has a continuous flow production line. Fig. 1 This combination tool module is equipped with a number of pre-adjusted tools. The user only needs to install the tool shank on the tool board and then start the work. Clippard Instrument Laboratories, Inc. is similar to an intermittently-produced processing plant. From the point of...
A major continuous hydrogenation reactor manufacturing company adopted the SIEMENS 840D CNC system to transform a CNC gantry machining center. After the transformation, the machine not only completely restored the original design requirements, but also greatly improved the efficiency of the machine tool, fully embodying the high technology of SIEMENS 840D CNC system. High stability. The CNC Gantry Machining Center was manufactured by WALDRICH COBURG of Germany in 1983. The machine tool is a...
Cutting variable lead threads on a CNC lathe is an important aspect of its characteristics. The variable lead thread has two types of groove width and tooth width. The groove variable width lead thread is easy to process and will not be described. Here we talk about the processing method of tooth variable width lead thread. The workpiece is shown in Fig. 1. The outer diameter of the machined workpiece is 40mm, the bottom diameter is 30mm, the first lead is 10mm, and the lead of the back is...
Abstract: The machining program is in an extremely important position in the operation of CNC machine tools. The article proposes to evaluate the machining program from aspects such as parts processing quality, programming and running costs, production efficiency, etc., and proposes the CAM for the status of CAM post-processing functions. The preparation of the machining program is optimized. Keywords: CNC machine tool; machining program; evaluation; optimization 1 Introduction The CNC machine...
At present, the rapid development of domestic economic construction, the degree of automation of the machinery industry has not significantly improved. The overwhelming majority of enterprises in China have the problems of outdated equipment and backward technology, which seriously restricts the development of enterprises. The upgrading of equipment is the first step in improving the development capabilities of enterprises. How to select and configure the CNC system is the most important issue...
Abstract: This article mainly introduces the use of Delta VE inverters in CNC machining centers. Keywords: CNC machining center positioning VE frequency converter station pulse given 1 Introduction CNC machine tools are the key equipment for modern manufacturing. The production and technical level of a national CNC machine tool to some extent represent the country's manufacturing level and competitiveness. There is still a big gap between the technical level, performance and quality of CNC...
The design of the numerical control processing route must be fully considered. Attention should be paid to the correct division of the process, the rational arrangement of the sequence, and the convergence of the numerical control machining process and the ordinary process. 1. Division of processes Compared with the processing of CNC machine tools and ordinary machine tools, the machining process is more concentrated. According to the processing characteristics of CNC machine tools, the...
Compared with ordinary lathes, CNC lathes have the characteristics of strong adaptability, high processing precision, high production efficiency, and ability to complete the processing of complex surfaces. With the development of new products, its shape is more and more complex and the accuracy requirements are getting higher and higher. Undoubtedly, we must give full play to the advantages of CNC lathes. Arc machining embodies the advantages of CNC lathes. However, in the actual processing of...
CNC lathes usually perform a variety of cutting operations. The difference between the tool position of the previous tool and the position of the newly changed tool at the time of tool change will be different. There are also errors in tool installation, tool wear, and arc radius of the tool tip. If you do not use the tool compensation function to compensate, you will not be able to cut the part that meets the required shape of the pattern. In addition, the rational use of tool compensation...
0 INTRODUCTION The traditional thread processing methods are mainly: the external thread is turned with a thread turning tool, and the thread profile can be cut out by multiple passes while working, and the production efficiency is low; the internal thread adopts tap tapping, and the thread bottom must be put into operation. The hole is machined and then the tool is changed for processing. The auxiliary time is long. With the development of numerical control technology, the machining methods of...
0 Introduction When machining the cam profile on a CNC machine tool, the choice of tool radius not only affects the machining accuracy of the cam, but also affects the machining productivity of the machine tool, and even affects the execution of the machining program. Therefore, the tool radius selection is a must Important issues to consider. Under the condition of ensuring the machining accuracy of the cam profile, in order to improve the rigidity of the processing system and the processing...
Figure 1.43 Approximation error CNC machining error △ number is caused by programming error △, machine error △ machine, positioning error △ set, knife error △ knife and other errors formed. That is: △ number plus = f (△ △ + + machine + △ set + △ knife) among them: (1) The programming error △ consists of approximation error δ and rounding error. The approximation error δ is generated during the process of approximating a non-circular curve with a straight segment or an arc segment, as shown in...
The main content of the numerical control process analysis proves that the numerical control process analysis mainly includes the following aspects: 1) Select the parts that are suitable for machining on CNC machine tools and determine the operation contents. 2) Analyze the parts to be processed, specify the processing content and technical requirements, and then determine the processing plan of the parts and formulate the numerical control processing route, such as the division of the...
CNC machining centers CNC machining center with an automatic tool changer. This type of configuration of the machining center can achieve automatic processing methods, but also can achieve automatic conversion of the workpiece processing tools. The automatic device of the magazine can complete the processing of multiple complicated processes in a single setup after being controlled by the system. Compared with other CNC numerical control equipments, it can realize true automatic processing. The...
Introduction: CNC is also known as computer gongs, CNCCH or CNC machine tools. It is actually a name for Hong Kong. Later, it was introduced to the mainland Pearl River Delta. It is actually a CNC milling machine and it is called CNC machining center in Guangzhou, Jiangsu, Zhejiang and Shanghai. Processing usually refers to precision machining, CNC machining lathes, CNC milling machines, CNC machining boring and milling machines. CNC is also known as computer gongs, CNCCH or CNC machine tools....
GSK218M machining center numerical control system is a universal numerical control system independently developed by Guangzhou CNC Equipment Co., Ltd., which is suitable for machining centers, CNC milling machines, CNC drilling machines and other machine tools. The system uses 32-bit high-performance CPU and ultra-large-scale programmable device FPGA. The real-time control and hardware interpolation technology ensure the high efficiency of the system um-level accuracy. The standard...
Introduction: CNC (Numerical Control Machine) is the abbreviation of Computer Numerical Control (CNC). It is an automatic machine controlled by a program. The control system can logically process a program having a control code or other symbolic instructions, and decode it by a computer, so that the machine tool performs a prescribed action, and the rough material is processed into a semifinished product part by tool cutting. CNC (Numerical Control Machine) is the abbreviation of Computer...
First, the tool compensation proposed: Using an end mill to machine a workpiece on a CNC machine tool, it can be clearly seen that the tool center movement gauge does not coincide with the contour of the workpiece. This is because the workpiece contour is formed by the movement envelope of the end mill. The center of the end mill is called the cutter location (4, 5 coordinate CNC machine tool is called cutter location vector), and the movement track of the cutter location represents the tool's...
The Chinese machine tool industry has achieved sustained and rapid development. Until the first half of 2011, the demand is still very strong. The vast majority of machine tool companies are in a state of exuberant production and sales. However, since the second half of last year, the demand growth has slowed down significantly, new orders have fallen sharply, the economic situation has gradually become severe, and the profit rate has continued to decline. Despite the rapid growth in the first...
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