What is machining of large mechanical parts?

What is machining of large mechanical parts? Large machine tools are used for machining of large mechanical parts. One machine tool in the workshop is a mag Cincinnati U5 general profile milling machine. The stroke of x-axis is up to 100ft (1ft = 0.305m), the stroke of y-axis is 12ft. Positioning datum: the datum used for workpiece positioning during machining, which is called positioning datum. For the surface ( line, point) as the positioning reference, only the rough surface can be selected in the first process. This positioning surface is called the rough reference. In each subsequent process, the processed surface can be used as the positioning reference, this positioning surface is called the fine reference.

The working part of reamer includes cutting part calibration part. The cutting part is tapered, which is responsible for the main cutting work. The main deflection angle of the cutting part is 5 ° - 15 °, the front angle is generally 0 °, the back angle is generally 5 ° - 8 °. The function of the calibration part is to calibrate the hole diameter, polish the hole wall guide. In order to make the processing of die parts, especially the punch, concave hole cavity with complex shape more automatic reduce the work of fitter repair, it is necessary to use CNC machine to process die parts. Milling is mainly used for roughing semi finishing of all kinds of planes grooves, forming milling cutter can also process fixed surfaces. The machining accuracy can reach it9-it7, the surface roughness is ra6.3-1.6 μ M.

The calibration part includes the cylinder part the inverted cone part. The cylindrical part ensures the diameter of reamer is easy to measure. The inverted cone part can reduce the conflict between reamer hole wall reduce the hole diameter to expand a lot. Therefore, the competitive advantage of machine tool export is weakened. The production conditions of the manufacturing plant include the standards, performance existing status of the machine tool equipment process equipment, the technical level of the workers, the ability of the factory to control its own process equipment, the ability of the factory to supply power gas other relevant materials.

The production conditions of the manufacturing plant include the standards, performance existing status of the machine tool equipment process equipment, the technical level of the workers, the ability of the factory to control its own process equipment, the ability of the factory to supply power gas other relevant materials. the perspective of orders of key enterprises in the machinery industry, the cumulative orders in the recent year showed negative growth, with the most obvious decline in orders for construction machinery, ships, commercial vehicles power generation equipment. At the same time, exports also fell sharply. Machine tool exhibition is a big short board of China's industry. Because of its late start, many of China's machine tool products are at the low-end level, high-end machine tools rely on imports.

In addition, if the country can take the same plastic machinery machine tool as the industrial base machinery (plastic machinery processing polymer materials, machine tool processing metal materials), as an important part of the national equipment industry, it will give the same special support preferential policies to advanced plastic machinery as CNC machine tools, so as to promote the plastic machinery industry to play a more obvious leverage role for me The development of national equipment industry has made greater contribution.

The development of plastic machinery industry should be combined with the national conditions of our country the basic practice of the existing occupation, strengthen the three correlations, that is, the plastic machinery is related to the high-end of the manufacturing industry, it is related to the high-efficiency industry; it is related to the specific needs closely related to the important industry people's life that affect the national economy, it highlights the important position of plastic machinery in the manufacturing industry. The new film blowing machines produced by machine building machines include film blowing machine, PE foam film blowing machine, multi-layer composite film blowing machine, color bar film blowing machine, heat shrinkable film blowing machine, etc., satisfied with the packaging of various products in the market, the quality of high-end blown film has won the love of high-end packaging.