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? ???M1432A -universal cylindrical grinder A . Overview of machine tool M1432A Main-universal cylindrical grinder for grinding cylindrical or conical (including ladder) within a cylindrical surface and hole, finished products size accuracy is up to 1~2 level, surface finish up to T8~T10. This machine tool hydraulic pressure systems performance are as follows: 1. bench reciprocating motion Universal cylindrical grinder bench reciprocating motion generally is relatively low, this machine working table in 0.1~0.5m/min stepless speed regulation between and 10~30mm/min , slip-free intensive campaigns to wheel at low speed. Table of commutation process smooth, starting, stopping quickly in order to guarantee and stepped hole grinding on stepped shafts in machine tools, Workbench should have higher precision of the directional in order to prevent sand wheel collision work bench, caused the accident. This speed grinder with directional accuracy (same speed directional precision point location) is not more than 0.03mm, allometric directional accuracy (increase speed from minimum to maximum crossover point position error) is not more than 0.3mm. External grinding wheel on workpiece is generally not beyond, in order to avoid artifacts caused by shorter grinding time at each end size high cylindrical (bore sizes too small), the machine tool table reversing phase ends when there is a short stay, stay for 0~5s, and can be adjusted. This plunge-cut grinding of high-productivity machine can do, how often its bench heading for the Olympics, short-stroke directional control (often called jitter), surface finish and to improve grinding efficiency and wheel wear uniform. In order to ensure safe operation, this machine tool table of hydraulic drive and manual operation can be interlocked. Universal cylindrical grinder bench reciprocating motion requirements are very high, directional performance requirements even more so, this part of the hydraulic system often becomes the core part