Kinematic diagram of horizontal milling machine 6H82

Each element of machine mechanisms in the kinematic circuit is indicated by certain conditional signs. The State All-Union Standard (GOST 3462-52) establishes uniform symbols for kinematic schemes of machine tools. The Handbook of the Young Milling Machine gives the conventions of the most common elements of the milling machine mechanism in kinematic diagrams. Knowledge of schematic symbols is necessary to understand the kinematic scheme. Kinematic diagrams allow you to understand the device of the machine and correctly perform the calculations necessary for setting up and setting up the machine. Kinematic diagrams of machine tools 6N82, 6N82G and 6N12. § 32 and 33 disassemble the main units and controls, give the basic information characterizing the number of spindle revolutions and table speeds, as well as indicate the assignments of handles for adjusting the speed box and feed box for the range of machines 6H82, 6H82G and 6H12. Here we will study in more detail the mechanisms of machines of this range. Figure 111 shows the kinematic diagram of the universal milling machine 6H82, which fully corresponds to the diagram of the horizontal milling machine 6H82G. Shafts are indicated on the diagram by serial Roman numerals, and gears are indicated by the number of teeth and a module connected by a multiplication sign. The pitch of the lead screw in millimeters is indicated by the letter S. Main motion chain. The spindle receives rotation from a 7 ket flange motor at 1440 rpm through an elastic coupling and gears of the five-shaft speed gearbox mechanism, communicating 18 different rpm to the spindle in the range of 30 to 1500 rpm. From shaft/rotation is transmitted to shaft II by gear pair 26:54; further to the shaft///through gear pairs 16:39 or 19:36, or 22:33; shaft IV through gear pairs 18:47 or 28:37 or 39:26; shaft V (spindle) through toothed pairs 19:71 or 82:38. For a better understanding of the kinematic scheme of the main motion chain, see Figure 112, and a section of the speed box of the 6H82 and 6H82G machines is given, and Figure 112, b - a section of the speed box of the 6H12 machine. As can be seen from both sections, the vertical milling machine 6H12 differs from the horizontal 6H82G and universal 6H82 only in the arrangement of the spindle and the additional bevel gear 35:35 to the spindle (shaft VI).