carIndustry is my country's pillar industry with a long industrial chain and numerous related industries. Therefore, improving the level of automobile manufacturing can be said to be a system engineering.
Cutting the cost of cutting tools for auto parts by half,can you? For the auto parts industry, this is a typical mass production mode, and manufacturing cost is an important part of consideration for parts manufacturers.
For domestic auto parts manufacturers, on the one hand, they must compete with foreign parts and components enterprise groups in the market, and on the other hand, they must practice their own internal skills, improve quality and efficiency, and improve the level of parts manufacturing. In addition, consideration should also be given to accelerating product renewal and environmental protection requirements, so that auto parts processing becomes a key link.
The characteristics of tools for key automobile parts
Through the analysis of the processing technology of the key parts of the automobile, it is found that the parts that are difficult to process are mainly the key parts of the engine, such as the engine body, the frame,Crankshaft, Connecting rods, gears, axles,transmissionHousings, etc., these parts not only have complex Y structure, high manufacturing accuracy, and high surface roughness. Not only parts are needed, but also gears, axles and housings in transmission are needed. Good interchangeability, high strength and rigidity, these factors prom
carIndustry is my country's pillar industry with a long industrial chain and numerous related industries. Therefore, improving the level of automobile manufacturing can be said to be a system engineering.
Cutting the cost of cutting tools for auto parts by half,can you? For the auto parts industry, this is a typical mass production mode, and manufacturing cost is an important part of consideration for parts manufacturers.
For domestic auto parts manufacturers, on the one hand, they must compete with foreign parts and components enterprise groups in the market, and on the other hand, they must practice their own internal skills, improve quality and efficiency, and improve the level of parts manufacturing. In addition, consideration should also be given to accelerating product renewal and environmental protection requirements, so that auto parts processing becomes a key link.
The characteristics of tools for key automobile parts
Through the analysis of the processing technology of the key parts of the automobile, it is found that the parts that are difficult to process are mainly the key parts of the engine, such as the engine body, the frame,Crankshaft, Connecting rods, gears, axles,transmissionHousings, etc., these parts not only have complex Y structure, high manufacturing accuracy, and high surface roughness. Not only parts are needed, but also gears, axles and housings in transmission are needed. Good interchangeability, high strength and rigidity, these factors promote the application of high-performance standard tools and special tools in the processing of key parts.
Tools for processing various auto parts
In the actual machining of auto parts, the selection of tools mainly considers the following factors: workpiece material, workpiece shape, machining accuracy, machine tool, system stiffness, surface roughness, etc. The machining objects are mainly divided into hole parts. Plane parts, shaft parts, shell parts and gear processing.
Hole processing mostly adopts multi-blade composite structure (knife-edge machine clamp, inlaid welding combination), without grinding, but using hinge extrusion. Hole processing is completed in one pass.
Plane parts mostly use high-speed dense tooth face milling cutters, with tooth density, excessive positioning, and repeated clamping mechanisms. When milling aluminum alloy workpieces, milling cutters with different specifications and unequal pitches and large shaft radial rake angles are used. The rake face of the tool has been polished. The cutting force is small, there is no vibration, and the surface quality is good.
In the manufacturing of automobile connecting rods, separation surface lifting technology and double-sided horizontal two-axis table surface grinding technology are commonly used high-quality and high-efficiency processes in the production of foreign connecting rods.
carCrankshaftThe machining of the main shaft journal and the connecting rod journal is a special tool for broaching on a double-station lathe. In addition, the outer surface of the shaft end of some parts adopts special tools for external milling and reaming of forming combination to complete the rough processing of the outer circle and the end face at one time, rather than a single-edged turning process.
In foreign cylindrical gear processing, multi-head coated high-speed hobs and radial gear shaving cutters are mostly used for hobs and gear shaving instead of grinding. Numerical control gear processing equipment is widely used, greatly improving the processing efficiency. The application of cemented carbide tools in hard tooth surface cutting has become an important research field at present. Precision forging technology has been widely used in the processing of straight bevel gears, and gear cutting technology has been retained in high-precision occasions. Spiral bevel gears are mostly processed by CNC gear milling machines. After heat treatment, CNC gear grinders are used. Paired hardcover or CNC gear milling machines are used. After heat treatment, CNC gear grinders are used to correct heat treatment deformation, but paired assembly is not used. Hard tooth surface scraping technology has certain applications in the processing of spiral bevel gears.
The shell parts are mostly flat and porous thin-walled parts with poor rigidity and high hole position accuracy. The machining center is mostly used for processing.
Therefore, the choice of tools is particularly important for auto parts manufacturers. Choosing the right tools can improve the accuracy of parts processing, save costs, and enhance the strength of the company.
How to choose the right tool?
On August 8, 2019, "Automobile Craftsman" magazine will hold a seminar on advanced processing technology for auto parts in Weifang, Shandong. At that time, the tool experts will explain the processing plan of the key parts of the car.
