Turning larger thread pitch on ordinary lathe

In the C620 turning machine, the increased pitch thread, the lead at 13 ~ 24mm and the modulus at 3.25 ~ 6mm, according to the signs, the spindle speed must be pulled to the middle gear, the handle B in the box in the I The location of C in the location of II. Please see Table 1C620 Lathe turning larger thread pitch tag. We found out in the production that when the turning lead is 13~24mm and the module is 3.25~6mm, as long as the feed box handle is adjusted to the position of B in I, C is in the position of II, the spindle speed is switched to Low gear, as shown in Table 2's own modified signage. In this way, during finishing, low-speed turning can be used to reduce vibration, reduce surface roughness, and improve the quality of the workpiece. Table 1 Metric thread exchange gear 42:100 (increased pitch) Modulo thread exchange gear 32:97 (increased pitch)

Each handle position of the gearbox Each handle position A of the gearbox moves to the metric position to the metric position B I II I II I II I II C II II I II II II I II Infeed handle 1 13 26 52 104 3.25 6.5 13 26 2 14 28 56 112 3.5 7 14 28 3 16 32 64 128 4 8 16 32 4 18 36 72 144 4.5 9 18 36 5 19 38 76 152 6 20 40 80 160 5 10 20 40 7 22 44 88 176 5.5 11 22 44 8 24 48 96 192 6 12 24 48 Table 2 Metric Thread Exchange Gears 42:100 (increased pitch) Modulo Thread Exchange Gears 32:97 (increased pitch)

The handle position of the gearbox Each handle position of the gearbox A Move to metric position Move to metric position B I II I II I II I II C II II I I II II II I I II Infeed handle 1 13 26 13 52 104 3.25 6.5 3.25 13 26 2 14 28 14 56 112 3.5 7 3.5 14 28 3 16 32 16 64 128 4 8 4 16 32 4 18 36 18 72 144 4.5 9 4.5 18 36 5 19 38 19 76 152 6 20 40 20 80 160 5 10 5 20 40 7 22 44 22 88 176 5.5 11 5.5 22 44 8 24 48 24 96 192 6 12 6 24 48

Construction Machinery

Construction machinery is an important part of the equipment industry. In a nutshell, the machinery and equipment necessary for comprehensive mechanized construction projects required for earthwork construction projects,road construction and maintenance,mobile lifting and unloading operations and various construction projects are called construction machinery.
Construction machinery is mainly used in national defense construction projects,transportation construction,energy industry construction and production,mining and other raw material industrial construction and production,agriculture,forestry and water conservancy construction,industrial and civil construction,urban construction,environmental protection and other fields.
Construction machinery in the world, the title of the construction machinery industry is basically the same,in which the United States and the United Kingdom are called construction machinery and equipment,Germany is called construction machinery and devices,Russia is called construction and road construction machinery,and Japan is called construction machinery.In China,some products are also called construction machinery,and the machinery system is collectively referred to as construction machinery according to the approval of the State Council to form the industry,which has continued to the present. Countries have roughly the same product range for the construction machinery industry.Compared with other countries,China's construction machinery has also added industries such as railway line construction machinery,forklifts and industrial handling vehicles,decoration machinery,elevators,and pneumatic tools.

Construction Machinery,Attached Concrete Vibrator,Internal Concrete Vibrator,Hand Held Concrete Vibrator

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