ASME B5.60A:2005 pdf download SAFETY CODE OF PRACTICE
6.1 Selection
A workholding system compatible with the machinetool shall be selected.
6.1.1 The machine tool builder shall select a work-holding chuck based on the performance capability ofthe chuck being compatible with the machine tool’:cutting capabilities. The items to be considered includebut are not limited to maximum spindle rpm,machincswing， spindle horsepower, axis thrust，spindle noseheadstock length,chuck weight, maximum part diameter, length,weight, etc.
6.1.2 The machine tool builder shall limit (lockout)the maximum spindle speed so that it does not exceedthe maximum rpm of the workholding system.
6.2 Documentation
The chuck manufacturer’s manual shall be providedwith the machine’s documentation.
The machine tool builder shall provide a copy ofthe chuck manufacturer’s manual with the machinetool’s documentation.
6.3 Safety Instructions
Safety instructions shall include safe operation guidelines for workholding.The machine tool manufacturers shall address thefollowing issues in their manuals.
6.3.1 Safety. The end user must read, understand,and adhere to the chuck manufacturer’s safety manual
6.3.2 Chuck Gripping Force. Requirements forreview and determination of proper gripping forcerequired for the process being performed (para, 5.1.4.5)shall be explained.
6.3.3 Constant Surface Speed. The effects andsafe corrective action when using constant surface speedshall be explained.
6.3.4 Jaw Gripping Area. The machine toolbuilder shall describe the importance of proper jawgripping area [para. 5.1(c)].
6.3.5 Unbalanced Workpieces.The effects ofan unbalanced workpiece/workholding system shall beexplained.
6.3.6 Alteration to Workholding System. Before making any alterations or changes to the workholding system, the chuck manufacturer should be consulted 6.3.7 Bar Applications. An explanation of theeffects of bar passing through the spindle, and therequired cautions,should be provided.
6.3.8 Double Chucking. The use of multiple workholding systems on the same machine should be addressed.
6.39 Additional Information. Information recognized by the machine tool builder to improve the safeoperation of the workholding system should be included.
6.4 Safety Placard
Provide the safety placard with the following minimum information.
6.4.1 Chuck and/or Cylinder Make/ModelNumbers. The manufacturer shall list the chuck andcylinder models selected and installed on the machine
6.4.2 Maximum Input Pressure (Cylinder). Theplacard shall indicate the maximum input pressure thatcan be applied to the cylinder for the specific chuckinstalled.
6.4.3 Maximum Rated rpm.The maximum rpmcapability of the workholding system shall be indicated.
6.4.4 Reference to Chuck Manual. The placardshall inform the user to review the chuck manufacturer’smanual.
6.5 Power Chuck Clamped Confirmation
A suitable system for power chuck clamped confirmation shall be provided.
6.5.1 The machine tool builder shall provide apositive means for determining if the chuck is in theclamped position.Spindle rotation shall be inhibitedwhen the chuck is not in the clamped position.