A comprehensive understanding of high-precision double-end grinding machines and solutions to processing problems

The high-precision double-end surface grinder is a high-efficiency surface processing machine tool that simultaneously grinds two parallel surfaces in one process. According to the structure, it can be divided into horizontal type and vertical type, and according to the feeding method, it can be divided into penetrating type, rotary type and reciprocating type. Due to its high precision and high production efficiency, grinding products are widely used in many industries such as automobiles and motorcycles, bearings, and magnetic materials. Valve gaskets, piston rings, cross shafts, connecting rods, compressor slides, hydraulic pump blades, shift forks, valve plates, stators, rotors, bearing inner and outer rings and rollers, magnetic steel plates, magnetic rings, Products of various materials such as graphite plates are suitable for processing.

There will be some problems in the working process of the high-precision double-end grinding machine. During the operation of the double-end grinding machine, if there is no good technical support, it will not be able to effectively manufacture better workpieces. Of course, high-precision double-sided grinding machines also have many characteristics, and the characteristics of double-sided grinding machines are mainly reflected in their production efficiency.

The high-precision double-end grinding machine has high production efficiency, and the time required to process parts mainly includes two parts: motor time and auxiliary time. The range of spindle speed and feed speed of double-sided grinding machines is larger than that of ordinary machine tools, so favorable cutting parameters can be selected for each process of double-sided grinding machines. Due to the good structural rigidity of the double-sided grinding machine, it allows powerful cutting with a large cutting volume, which improves the cutting efficiency of the double-sided grinding machine and saves maneuvering time. The moving parts of the CNC machine tool move quickly during the idle stroke, which hurts the clamping time of the workpiece. The tool can be changed automatically, and the time is greatly reduced compared with ordinary machine tools.

1. Through the program setting of the numerical control system, rough grinding and fine grinding can be realized.

2. It can change with the reduction of the diameter of the grinding wheel, and has functions such as automatic compensation for grinding wheel correction and compensation for ball screw gap error. And the corrected position compensation function.

3. The system setting unit is 0.1m, which can display the grinding parameters of the grinding wheel.

4. The use of linear motors, dynamic balance and other technologies has greatly improved the efficiency of the machine tool.

Treatment of common problems of high-precision double-end surface grinding machine: The grinding process is the process of extrusion, friction, plowing and debris separation of abrasive grains on the surface of the workpiece. The whole process is accompanied by the friction of the abrasive grains on the surface of the workpiece, especially in the double-end grinding process, the friction resistance becomes larger, the grinding area is larger, the heat generated by the friction increases, and the temperature is high. The high temperature generated by friction is also concentrated in the place where the abrasive grains gather, causing the local metal structure on the surface of the workpiece to anneal and shrink, forming a concave shape, turning the surface color purple, and causing grinding damage. To solve grinding damage, the key is to choose the right grinding wheel. The grinding wheel must have a suitable hardness, it must have a strong self-sharpening property, and it must not wear too fast, so as to reduce the frictional resistance generated during grinding. Secondly, the grinding wheel must have good chip removal performance, and the cutting fluid must be sufficient to have a better cooling effect. Also, if the grinding is only slightly damaged, the speed of the grinding wheel can be appropriately reduced to reduce the cutting force and solve the problem of workpiece damage.

The above is the introduction of the relevant content of the high-precision double-end grinding machine.