Universal milling machine capability In a universal milling machine, can the table be swiveled in the horizontal plane and also fed at an angle relative to the milling spindle for operations like helical milling?

Difficulty: Easy

Correct Answer: True – the table can swivel horizontally and be fed at an angle

Explanation:


Introduction / Context:
A universal milling machine extends the capability of a plain (horizontal) mill by allowing the table to swivel in the horizontal plane. This is essential for cutting helical gears, spirals, and other angular features synchronized with table feed.



Given Data / Assumptions:

  • Universal horizontal milling machine with a swivel table.
  • Indexing head and change gears may be available for helical milling.
  • Objective: feed the work at an angle to the cutter axis.


Concept / Approach:
Swiveling the table changes the feed direction relative to the cutter. When geared (with the dividing head) to the table feed, the work can be advanced axially as it rotates, generating a helix. This capability differentiates the universal mill from a plain mill, whose table is fixed parallel/perpendicular to the spindle.



Step-by-Step Solution:
Swivel the table to the required helix angle within machine limits.Engage feed at the set angle; optionally gear the dividing head to the feed screw for helices/gears.Perform milling with the desired angular relationship, impossible on a non-swiveling plain mill.



Verification / Alternative check:
Manufacturer manuals show swivel graduations and helical milling charts, confirming angled feed capability.



Why Other Options Are Wrong:

  • Statements restricting feed to straight directions ignore the fundamental design of the universal table.
  • Vertical head attachment is not a prerequisite for horizontal helical milling.


Common Pitfalls:
Confusing universal with omniversal (which also tilts vertically); overlooking the need to realign after angular work.



Final Answer:
True – the table can swivel horizontally and be fed at an angle

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