CNC milling parts processing technology and CNC programming

CNC machining specializes in production management, mechanical product design, CNC programming and processing operation, CNC equipment installation, commissioning and operation, CNC lead backup fault diagnosis and maintenance, transformation and after-sales service. The demand for CNC technical talents.

The size of the demand for CNC technical talents and the type, level and quality of talent demand depend on the development degree of the national economy and manufacturing industry, and also depend on the management requirements and development trends of the employer itself. According to statistics, the manufacturing industry is more developed in Germany, the United States, Japan and other countries CNC machine tools account for more than 70% of the production equipment, China's manufacturing industry and the international advanced industrial countries compared with a big gap, according to the machinery association statistics, China's manufacturing CNC machine tools have less than 2% of the total, and in recent years are growing at a rate of more than 35%, for China's existing limited number of CNC machine tools have not been fully utilized. Although there are many reasons, the lack of CNC talents is undoubtedly one of the main reasons.

Solution: 1. Processing technology.

1) Determination of processing technology.

Determination of clamping positioning: clamping is carried out directly by using flat pliers.

Determination of the programming coordinate system: The symmetry point of the workpiece is used as the program programming coordinate system.

Determination of the workpiece coordinate system: the G54 working coordinate system is adopted, that is, the origin of the programming coordinate system.

Determination of tool processing starting: the position of the tool starting point is 100mm at the distance between the end face of the tool and the point (0, 0) of the workpiece surface.

Determination of the process route: The advance and retreat points are cut in and out by using contour extension lines or tangent lines. The cutting feed route adopts the milling method, that is, the outer contour path is clockwise, and the inner contour is counterclockwise.

2) Determination of machining tools.

16, 12 integral end mills, 3 center drills, 10 standard twist drills.

Teaching process: 3) Cutting amount. See Machining Procedures.

4) Numerical point calculation. (omitted).

2. Processing procedures.

O0019 ( FANUC 0i mate ) G54M03S800T01M06H01D01F80 (T1 Milling Inner and Outer Contours 4 End Mills )

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Buy a book and just take a look.

When choosing CNC milling content, we should give full play to the advantages and key role of CNC milling machine. It is suitable to use CNC milling processing technology

1) Curve profile on the workpiece, straight line, arc, thread or spiral curve, especially the curve profile of non-circular curves and list curves given by mathematical expressions.

2) The spatial curve or surface of the mathematical model has been given.

3) Parts that are simple in shape, but have a wide range of sizes and are difficult to detect.

4) The inner cavity and the inside of the box that are difficult to observe, control and detect when processed with ordinary machine tools.

5) Holes or planes with strict size requirements.

6) Simple surfaces or shapes that can be machined in a single clamping.

7) The use of Sipei CNC milling processing can effectively improve productivity, reduce the labor intensity of the general processing content.

The main processing objects suitable for CNC milling are the following categories: plane profile parts, variable bevel parts, space surface profile parts, holes and threads, etc.

Numerical control technology. In recent years, with the development of computer technology, digital control technology has been widely used in various fields of industrial control, especially in the machinery manufacturing industry, ordinary machinery is gradually being replaced by high-efficiency, high-precision, high-automation CNC machinery. At present, the numerical control rate of foreign machinery and equipment has reached more than 85%, and the numerical control rate of China's machinery and equipment is less than 20%, with the application of new technologies in China's mechanism industry, China's world manufacturing processing center status is formed, the use of CNC machine tools, repair, maintenance personnel are very scarce in various industrial cities in the country, plus CNC machining personnel are very wide, can be in the modern manufacturing industry of molds, watch industry, hardware industry, small and medium-sized manufacturing industry, engaged in the corresponding companies and enterprises computer graphics, CNC programming design, machining center operation, mold design and manufacturing, EDM and wire cutting work, so the existing CNC technical personnel can not meet the needs of the manufacturing industry, and the talent market in this kind of talent reserve is not large, enterprises to find the right talent in the talent market is more difficult, so that the mold design, CAD cam engineer, CNC programming, CNC machining, etc. have become one of the most frequent recruitment positions in China's talent market.

In various job fairs, CNC professionals are one of the few positions that enterprises are keen to mark with words such as "urgent hiring" and "high-salary recruitment", so that there is a phenomenon of "it is difficult to hire CNC technicians with a monthly salary of 6,000 yuan" and "CNC technicians cannot be recruited with an annual salary of 160,000 yuan". It has been reported that China's senior technicians are facing a serious situation of "lack of success", the original technicians are old, the middle-aged technicians are few, and the young technicians are not yet mature. According to statistics, at present, among the skilled workers in China, senior technicians account for 35%, and junior workers account for 60%.

Among the skilled workers in developed countries, 35% are senior workers, 50% are intermediate workers, and 15% are junior workers. This shows that there will still be a large talent gap for our senior technicians in the next 5-10 years. Boom Sea wishes you good luck.

With the adjustment of industrial layout and product structure, the employment structure will also change. The demand for higher-level first-line applied talents will increase significantly. With the help of foreign development experience, when entering the period of industrial layout and product structure adjustment, it has become an urgent requirement to match the industrial structure and cultivate a considerable number of professional talents with a high level of education.

For CNC machining majors, practitioners are not only required to have excellent practical ability, but also to master systematic and solid machining theoretical knowledge. Therefore, CNC machining talents with both academic qualifications and strong operating ability have become the most urgently needed talents in the society and enterprises.

Boom Sea wishes you good luck.

CNC machining technology, ordinary fitter, ordinary lathe worker, these two can generally be learned well in one year. But it's not very good, it's just good at learning. But to go to the general place 2000+ salary is always there, I think your good standard is this, I don't know how many years to learn these things.

And the mold is also made with CNC lathes and machining centers. I suggest you go and learn CNC machining technology. Because this one is quick to get started.

There must be a salary of more than 2000+ in half a year. After learning, I feel that 2000+ is low, and you can transfer to the school in the future, and it will be much easier for you to learn at that timeIn this way, you can learn two things at once

That's all there is to it for a year.

General fitter, ordinary lathe, milling and grinder, riveting and welding, industrial electrician, electrical welding.

CNC machining technology 1 year entry.

Electrical automation depends on the specific direction.

Mold design and manufacturing 2 years.

CNC technology for more than 3 years.

There are two programming methods for CNC milling and machining centers in arc interpolation, one is to use r programming; One is programming with i, j, and k.

In the case of arc interpolation in the G17 plane.

r is programmed in the following format:

g02 g03 x --y --r---f---x-- y -- is the position of the end of the arc, and r -- is the radius of the arc).

i, j, k programming format:

g02 g03 x-y- i--j-- f---i- j- is the increment value of the center of the arc relative to the starting point of the arc, that is, the algebraic difference obtained by subtracting the coordinates of the center of the circle, i--is the coordinate difference of x, and j- is the coordinate difference of y. ）

It should be more detailed, and if you have any questions, you will ask them.

Ready-made: There is a hemisphere on top of the cylinder with a ball nose cutter of 12 main program o123 90g80g49g40 g0g90g54x40y0s1600m3 g43h1z100m8 z10 g1z0f300 m98p110l15 g90g1z20f500 g1x40y0 m98p210 g91g28z0 m5 g91g28y0 m30 subroutine 1 first process cylindrical 30 depths o110 g91z-2f500 G90G41G1X28D1 G2X28I-28 G01X40Y0 M99 Subroutine 2 Machining Hemisphere O210 18=20 N29G1Z 26 x 24 G2X 24Y0I- 1=sqrt[ 2 IF[ 26le0]goto29 G1Z20 G01X0Y40 M99