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Multi Spindle Heads
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Spindles
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Head Selection
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Special Purpose Machine Samples
Head Selection
Fig. 5 Fig. 6
  1. Based on the dimensions of the parts to be produced, the most suitable head can be selected from the capacity values given in the specifications. To select the correct head for your needs, do the following:
    1. Draw a circle with a diameter given in Table 2 on the “Center Gear Diameter” column.
    2. Divide this circle equally into the number of spindles to be used.
    3. Taking these points as the center, draw circles with an “Effective Radius” given in Table 2.
    4. Draw the smallest drilling diameter given in Table 2 taking the center same as the center in Step (a)
    5. Shaded area shown in Fig. 6 gives the drilling area of the head.
    6. Control whether the points to be drilled are within this area.

  2. Number of Spindles: Multi Spindle Drilling Heads can be used with the maximum number of spindles given in Table 1 and Table 2. However, taking out the joints and spindles is a very easy and quick process when fewer spindles are needed.

  3. Selection of The Spindle Type: Suitable spindles for the planned operation can be selected using the capacity values given in Table 3 (Drilling Spindles) and Table 4 (Threading Spindles).

  4. Power of the Machine: Total power is calculated by multiplying the power calculated for each spindle with the number of spindles. Also if different operations are done with each spindle, total power should be used to control with the power of the machine.

  5. Suitability of the Head to the Machine: Suitability of the head to the machine should be controlled in two ways. (fig. 5)
    Measurement of Height X should be bigger than the sum of heads height, tools height, fixtures height and the height of the part that will be operated on.
    Also the measurement of Y, which is the length between machine’s mandren axis and the column, should be bigger than the B max. given in Table 1.