Purchasing Guide for the hottest CNC cutting machi

NC cutting machine procurement guide

at present, NC flame and plasma cutting machines have become popular in China's industrial enterprises. Many enterprises have begun to purchase and use NC cutting machines in order to improve production efficiency and expand production scale. However, they lack basic NC cutting concepts and knowledge, and there are some technical problems and use difficulties in the process of purchasing and using NC cutting machines. Therefore, We have briefly summarized and sorted out this NC cutting machine procurement guide, hoping to help enterprises purchase cutting machines and popularize NC cutting technology

there are undoubtedly three main purposes for enterprises to purchase CNC cutting machines:

be able to cut plates of a certain material and thickness, produce and process specific products

be able to effectively improve cutting efficiency and cutting quality

be able to effectively save steel and consumables

according to the three main purposes for enterprises to purchase CNC cutting machines, The procurement work can be roughly divided into the following five steps:

Step 1: select a number of controlled cutting machine models and specific configurations of 7 tissue engineering products approved by FDA:

according to the material and thickness to be cut by the enterprise, as well as the requirements of cutting efficiency and cutting quality, first determine the type of NC cutting machine to buy, flame, plasma, laser, or NC groove cutting machine. Secondly, according to the thickness of the cutting material, understand the effective perforation ability and perforation technology of the flame or plasma NC cutting machine, so as to select and determine the specific configuration of the NC cutting machine, such as the type of plasma power supply, the configuration of flame gun and preheating cutting oxygen, and the groove cutting method, so as to determine the configuration and approximate price of the NC cutting machine

it should be noted that the effective cutting thickness of CNC flame cutting machine depends on the perforation capacity of thick plates and automatic perforation technology, which can be achieved through the control of two-stage or three-stage solenoid valves and the automatic perforation process in the CNC system. The effective cutting thickness of CNC plasma cutting machine depends on the effective perforation thickness of plasma power supply, not the maximum cutting thickness

key points of purchasing work: purchasing personnel should carefully read and remember the effective cutting thickness (internal perforation) recommended by different manufacturers of different power plasma power supplies, not the maximum cutting thickness (cutting from the edge), so as to ensure the effective cutting and perforation thickness of CNC plasma cutting machine. Learn and understand the thick plate piercing process and equipment of the numerical control flame cutting machine, as well as the automatic piercing process and technology provided in the numerical control system, so as to ensure that the numerical control flame cutting machine has effective thick plate piercing process and cutting ability

reference table of cutting parameters of airborne plasma power supply

variety of airborne plasma power supply effective cutting thickness (perforation) maximum cutting thickness (beginning of edge)

powermax1650 12mm 19mm

max200/ht2000 25mm 50mm

hypertem 130 16mm 38mm

hypertem 260 32mm 64mm

kjellberg hifocus130 25mm 40mm

kjellberg hifocus160i 35mm 50mm

kjellberg hifocus160 280i 40mm 70mm

(data source: the technical data of Haibao in the United States and Kelby in Germany shall prevail.)

Step 2: investigate the manufacturing quality and machining accuracy of CNC cutting machine enterprises:

after the model and configuration of CNC cutting machine are determined, we will focus on the manufacturing quality and cutting accuracy of CNC cutting machine enterprises. The machine structure, the quality of gear and rack, the quality of guide rail and reducer, and the grounding and shielding technology of machine tool installation all affect or determine the quality and cutting accuracy of CNC cutting machine

key points of procurement work: purchasers need to carefully understand and compare the machine tool structure and machine tool configuration of different CNC cutting machine enterprises, understand the manufacturing equipment, processing quality and cutting accuracy of CNC cutting machines produced by enterprises, as well as the brand and characteristics of various imported components and parts selected, and ensure the manufacturing quality and machine tool accuracy of CNC cutting machines by configuring key imported products and parts

Step 3: select the CNC system

after determining the type and configuration of the CNC cutting machine and selecting the manufacturer of the cutting machine, the next step is to select the CNC system. CNC system is the heart of CNC cutting machine. The hardware configuration of CNC system determines the stability of CNC system. The cutting control software of CNC system, especially the automatic cutting process, determines the cutting quality and efficiency of CNC cutting machine. The stability of CNC system is the first important

two development schools of CNC system:

one is a modern technology school based on Windows platform, represented by American CNC system manufacturers; The other is the automatic cutting technology school based on DOS platform, represented by the numerical control system used by famous German cutting machine manufacturers, such as ESAB numerical control system, Canadian lynx numerical control system and FastCAM numerical control system used by Messer. The performance price comparison of the two schools is as follows:

performance price ratio windows modern technology school automatic cutting technology school

Technical logo windows system, touch screen technology, wireless Lianhe communication, Internet, highlighting the progressiveness of modern technology and functions of CNC system! Fan free, low-power CPU, wide temperature level, anti vibration, maintenance free electronic hard disk, highlighting the super stability of the CNC system and perfect cutting technology

main functions nesting, programming, automatic cutting process, wireless uploading, communication and document management nesting, programming, automatic cutting process, wired communication, wireless remote control

advantages programming nesting has powerful communication function, reaching the level of computer office automation. The stability of the CNC system is very strong, the operation interface is simple, and the automatic cutting process is perfect

disadvantages the stability of the CNC system is not enough, The internal CPU and hard disk are heated and overheated seriously, which often leads to the instability of the CNC system in summer. DOS system is not as good-looking as windows system. Purchasers without NC cutting experience will mistakenly think that the system configuration is not enough and not advanced enough

the main reason is that the CPU with high main frequency has high power and large heat dissipation. When the fan is used in harsh industrial environments such as dust and high temperature, it will inevitably be worn and aged, and its service life is limited, which will reduce the service life of CPU and motherboard. Large hard disk with mechanical rotating medium, high-speed rotation leads to heating, vibration leads to hard disk track damage, easy to infect virus windows is a multi task and multi process non real-time control system, NC cutting is a single task and single process real-time control process, DOS system just meets the real-time control needs of NC cutting. In order to improve the stability of CNC system, fan free, low-power CPU and wide temperature level, anti vibration electronic hard disk are used to replace high frequency CPU and mechanical hard disk

the improvement measures include additional investment, installation of air conditioners for the CNC system, industrial protection and treatment such as shockproof and dust prevention in the CNC cutting workshop, and the addition of wireless remote controls, so that the steel plate correction, starting point positioning and cutting nozzle replacement are simple, accurate and fast, Avoid cutting workers running back and forth between the CNC system and the steel plate

system price system price and future maintenance cost are expensive system price and maintenance cost are economical (50%)

automatic cutting many filter material companies have begun to order the system from the company cutting technology trend view: an imported CNC system (80000 ~ 90000 yuan) is 20 times more expensive than a computer (4000 ~ 5000 yuan), and the CNC cutting machine is even more expensive. Obviously, the use of expensive CNC system for programming, nesting, loading, communication and document management, resulting in the idle state of CNC cutting machine waiting for CNC system programming nesting most of the time, which reduces the efficiency of CNC cutting machine, which is undoubtedly a great waste of resources! The correct approach should be to hand over the work of programming, nesting, loading, communication and document management to cheap computers and programming nesting software, so that the CNC cutting machine can achieve full-time cutting, automatic cutting and efficient cutting

key points of procurement: purchasers need to select CNC systems suitable for the needs of their own enterprises. Learn and understand the main reasons for the instability of the numerical control system and the methods to improve the stability, and ensure that the numerical control cutting machine and numerical control system purchased by the enterprise can operate for a long time, stably and at a low cost when the oil cylinder is raised by about 1mm

Step 4: learn and understand the methods to improve cutting efficiency and cutting quality

the cutting efficiency and cutting quality of CNC cutting machine are very important to users, and it is also the only standard for enterprises to evaluate the success, quality and quality of CNC cutting machine procurement

in particular, it should be pointed out that when the structure and hardware configuration of the NC cutting machine are basically the same or similar, the cutting efficiency and cutting quality of the NC cutting machine are mainly determined by the optimization nesting software and the cutting control software of the NC system

in order to improve the cutting efficiency and cutting quality of the NC cutting machine, the cutting methods of full-time cutting, automatic cutting and efficient cutting should be adopted to avoid programming, nesting and manual control of the cutting process on the NC system

latest development trend: the new technical development direction of NC cutting is to realize "full-time cutting, automatic cutting, efficient cutting, high-quality cutting and high nesting rate cutting" of NC cutting machine. Its core idea and guiding ideology is to further improve the cutting efficiency and cutting quality of the NC cutting machine through software technology, namely, NC cutting optimization nesting programming software, NC system cutting control software, as well as automatic piercing and automatic cutting technology, under the condition that the hardware structure design and manufacturing technology of the NC cutting machine tend to be perfect and the same or similar conditions, Realize "full-time, automatic, efficient, high-quality and high nesting rate cutting" of CNC cutting machine

core technologies and methods: first, full-time cutting, using FastCAM programming nesting software to program nesting of the whole board and residual board on the computer, and cutting machine full-time cutting, avoiding programming nesting on the numerical control system, reducing the production efficiency of the cutting machine. The second is automatic cutting, which uses the automatic cutting process in FastCAM CNC system to realize automatic perforation and automatic cutting, instead of manual cutting. Third, efficient cutting, using FastCAM programming nesting software and efficient cutting processes such as common edge, continuous cutting, edge borrowing, bridging, etc. in the NC system, effectively reduce preheating perforation (reduce perforation by more than 70%), improve cutting efficiency, and achieve efficient cutting. Fourth, high-quality cutting. Use FastCAM programming nesting software and pretreatment technology in the NC system to optimize the CNC cutting program, remove redundant entities, avoid random running empty distance and repeated cutting, compress the fitting cutting program, ensure the smooth and high-speed cutting of the cutting machine, avoid machine shaking, and ensure that the cutting parts are closed and not deformed

key points of procurement work: procurement personnel need to learn and understand the concepts and technical methods of full-time cutting, automatic cutting, efficient cutting and high-quality cutting, and provide enterprise leaders and cutting workers with new NC cutting concepts and technical data to ensure that enterprises can effectively improve cutting efficiency and cutting quality on the basis of using NC cutting machines

Step 5: learn and understand efficient cutting technologies and methods that can effectively save steel and consumables

saving steel and consumables is the most concerned issue of enterprises. To make profits, enterprises must effectively save steel and consumables. Therefore, enterprises purchasing CNC cutting machines must be able to effectively save steel and consumables

the most effective means to make full use of the technical advantages of the military industrial unit stationed in Shandong: the most effective means to effectively save steel and consumables is to use FastCAM to optimize nesting programming software through the whole board