What are the requirements for the speed of parts processing?

    Generally speaking, mold parts processors use the following methods:

  1. Washing processing: mainly milling the plane with a milling cutter. 2. Grinding processing: mainly grinding the surface of the workpiece with a grinding wheel

  3. Planing processing: It is mainly to plan the surface of the workpiece with a planer.

  4. Special processing: It is a method of processing directly using electric energy, chemical energy, etc.

  5. Numerical control processing: It is mainly to control the machine tool through digital information, so that the processed part and the tool can produce the relative movement that meets the requirements, and realize the processing of the part from the surface.

  Mold parts processing technology generally uses the following methods:

  1. Geometric shape accuracy The geometric shape accuracy (roundness, cylindricity) of the journal should generally be limited to the diameter tolerance point. When the geometric shape accuracy is high, the allowable tolerance can be specified on the part drawing.

  2. The surface roughness can have different surface roughness values according to the different surface working parts of the parts. For example, the surface roughness of the ordinary machine tool spindle supporting journal is Ra0.160.63um, and the surface roughness of the matching journal is Ra0. 632.5um, with the increase in machine speed and precision, the surface roughness requirements of shaft parts will become smaller and smaller

  3. Dimensional accuracy The journal is the main surface of shaft parts, which affects the rotation accuracy and working state of the shaft. The diameter accuracy of the journal is usually IT69 according to its use requirements, and the precision journal can reach IT5. 4. The position accuracy mainly refers to the coaxiality of the matching journal of the assembly transmission part relative to the supporting journal of the assembly bearing. It is indicated by the radial circle runout of the journal to the supporting journal; according to the requirements of use, the high precision shaft is specified as 0.0010.005mm, and the general precision shaft is 0.010.03mm. In addition, there are requirements for the coaxiality of the inner and outer cylindrical surfaces and the perpendicularity between the axial positioning end surface and the axis line.