The Basis of Grinder
The structure of surface grinder and grinding movement
However, many different types of grinder, such as surface grinder, cylindrical grinder, internal grinder, universal cylindrical grinder, can grind hole; the gear grinder, screw grinder , rail grinder, centerless grinder ,can grind excircle ,and the tool grinder grinding tool . Surface Grinder here and its movement.
1. surface grinder to the structure of the M7 as an example, in which case, in which: M - grinder-type machine; 71 - lying flat desktop moment axis grinding machine; 20 - work table width of 200mm; A - for the first time a major improvement. )
1) wheel frame - the installation of wheels and wheel drive for high-speed rotation, the wheel frame can slide along the rail for the swallow-tailed manual or hydraulic movement of the horizontal space.
2) slide - the installation of aircraft wheel and wheel drive along the plane up and down for column rail Movement.
3) column - supporting aircraft wheel and slide.
4) platform - the installation work by the hydraulic drive system for reciprocating linear motion.
5) bed - supporting table, the installation of other components.
6) liquid cooling systems - to provide grinding coolant oil saponification).
7) hydraulic drive system - composed of the following:
1) dynamic components - pumps, hydraulic drive system pressure on the supply of oil;
2) implementation of the components - the fuel tank, platform-led campaign, and other components;
3) control components - for a variety of valves, pressure control, speed, direction, and so on;
4) auxiliary components - such as tanks, pressure gauge, and so on.
Hydraulic and mechanical transmission, compared with a smooth drive, can overload protection, you can achieve a greater scope of the stepless speed advantages.
2. Plane grinding campaign
1) The main sports - high-speed wheel rotation.
2) Feed Campaign
1) vertical feed - table driven in a straight line back and forth movement of the workpiece;
2) vertical feed - wheel to the direction of the depth of the movement of the workpiece;
3) horizontal feed - its wheels along the axis of movement space.
Grinding characteristics:
Grinding is a cutting method that use grinding wheel as a cutting tool on the workpiece for grinding in the grinder. The method is characterized by:
1) As the abrasive wheel itself has a higher degree of hardness and heat resistance, the grinding process can be very high hardness of the material, such as hardened steel, carbide, and so on.
2) and wheel grinding machine features a grinding process decided to make a uniform system of micro-cutting, general ap = 0.001 ~ 0.005mm; high speed grinding, usually ranging from v = 30 ~ 50m / s; stiffness good grinder; using liquid Pressure transmission, so the economy grinding to obtain high-precision processing IT6 ~ IT5) and small surface roughness of Ra = 0.8 ~ 0.2μm). Grinding parts is finishing one of the main methods.
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