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Gear processing methods and guidelines

  1. Tooth grinding: IT6 ~ IT4 → IT3, Ra: 0.8 ~ 0.2μm Principle: forming method and generating method.
  (1) Forming grinding teeth IT6 to IT5, Ra: 0.8 to 0.4 μm, grinding with a profiled grinding wheel, gear driving
  gear drive
  Higher yields, lower processing accuracy, and less application.
  (2) Grinding method
  Cone Grinding Wheel Grinding: Grinding wheel profile is the hypothetical rack tooth shape. The workpiece is rolled to the right. Grind the right side of the first tooth slot with the right side of the grinding wheel and grind it from the root to the top; then the workpiece is rolled to the left Grinding the left side of the l-th tooth slot on the left side of the grinding wheel also grinds from the root to the top. When the grinding of both sides of the l-th tooth groove is completed, the grinding wheel will automatically withdraw from the workpiece, and the workpiece will be indexed for rotation. Scroll to the right again to grind the second slot, and repeat the cycle until all the gears have been ground.
  2. Research tooth:
  IT7 to IT6, Ra: 1.6 to 0.2 μm Equipment: Lapping machine. Rig: Precision cast iron gears. Abrasive: Abrasive: 220#~240#, Active Lubricant Features: Same as enamel, can only reduce the surface roughness, can not improve the tooth profile accuracy.
  Parallel axis grinding method:
  1. Process: The grinding wheel is parallel to the axis of the gear being studied. When grinding, the grinding wheel is used to drive the grinding wheel to perform free meshing motion without backlash. The ground gear is also reciprocated axially, and the grinding wheel is braked slightly. After a period of time, the grinding wheel and the grinding wheel rotate in opposite directions so that the two sides of the tooth are ground uniformly.
  2.Features: Since the sliding speed of the tooth surface is not uniform, the amount of grinding is not uniform, and the sliding speed at the tooth tip and the root portion is large, and the grinding amount is also large.
  Gear train with moving axis
  There are many types of planetary gear transmissions, and the performance of different types is quite different. It is very important to select the type reasonably according to the working conditions. Commonly used are ordinary planetary transmissions consisting of sun gears, planetary gears, internal gears, and planet carriers, planetary gear drives with little teeth difference, cycloidal pin wheel drives, and harmonic wave drives. Planetary gear transmission is generally composed of parallel shaft gears. It has the characteristics of small size and light weight. The input shaft and output shaft can be on the same straight line. Its application is more and more extensive.
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Dongguan Xing Ming Plastic Mould Co., Ltd.
Address: Room 5812, 5th Floor, Fuan Building, 228 Anzhong Road, Shatou Community, Chang'an Town, Dongguan City
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Contact person: Mr. Xu
Dongguan Xing Ming Plastic Mould Co., Ltd.
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