What is BS 4656-15 - Drilling machines, turret and single spindle coordinate types about?
BS 4656 is a British standard that discusses the specification for accuracy of machine tools and methods of tests. BS 4656-15 is the fifteenth part of the multi-part series concerning BS 3800, outlines both geometrical and practical tests for drilling machines of the turret and single spindle co-ordinate types and gives corresponding permissible deviations.
BS 4656-15 applies to machines of general-purpose use and normal accuracy. BS 4656-15 deals only with the verification of the accuracy of the machine.
There is a wide variety of machine configurations covered by the turret and single spindle co-ordinate drilling machines, all of which carry out the same basic functions to the same degree of accuracy. Therefore, the accuracy tests contained in BS 4656-15 should be selected to suit the machine configuration.
Examples of the main co-ordinate single spindle or turret drilling machine configurations to which this standard is applicable are as follows:
- Knee type
- Single column, bed type
- Double column, bridge type
Note: BS 4656-15 does not apply to the testing of the running of the machine (vibrations, abnormal noises, the stick-slip motion of components, etc.) nor to its characteristics (speeds, feeds, etc.), which should generally be checked before testing accuracy.
Who is BS 4656-15 - Drilling machines, turret and single spindle coordinate types for?
BS 4656-15 on drilling machines, turret and single spindle coordinate types is useful for:
- Drilling machine manufacturers
- Design engineers
Why should you use BS 4656-15 - Drilling machines, turret and single spindle coordinate types?
Turret drilling machines are equipped with several drilling heads mounted on a turret. Each turret head can be equipped with a different type of cutting tool. The turret allows the needed tool to be quickly indexed into position. The spindle holds the drill or cutting tools and revolves in a fixed position in a sleeve.
BS 4656-15 guides you with the proper application of geometrical tests for drilling machines, turret and single spindle coordinate types to evaluate the accuracy of drilling machines.
With obedience and compliance to BS 4656-15, you can properly evaluate the performance of drilling machines and ensure proper verification of the machine.
