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Title: |
Newton Machine Tool Works-Six Spindle Multiple Drilling Machine |
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Source: |
Machine Tools Commonly Employed In Modern Engineering Workshop, V2, 1911, pg. 17-18 |
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Insert Date: |
4/17/2020 1:55:11 PM |
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Modified forms of multiple-spindle machines are frequently used for the drilling of special pieces or classes of work. Thus, for example, the six-spindle machine (fig. 240), made at the Newton Machine Tool Works in America, is primarily intended for drilling six accurately spaced lines of holes in frames of certain cotton machines. It comprises six spindle heads, mounted upon a cross rail, rigidly secured to the fixed up- rights, and a table, which is fed along the bed by a special arrangement of spacing gear. When the locking plunger is lifted, the mechanism feeds the table forwards through the required distance between the rows of holes. All the spindles are fed down together and are returned quickly by power. Between the spindle centres the minimum spacing is 6 in. and the maximum distance between the spindle ends and the carriage is 19½ in. The width between the uprights is 42 in., and the length of the table movement is 16 in. An electric motor of 7½ h.p. is provided for driving the machine. |
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