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Vertical mills are essential cutting tools in machine shops used to remove material from the surface of metal workpieces. However, these tools present serious danger when an operator comes into contact with their high-speed rotating draw bars, resulting in injuries and costly OSHA fines.
To bring needed safety to the shop floor, Rockford Systems LLC has launched a new milling machine draw bar cover (part #DBC001) to protect vertical mill workers from rotating shafts 7 feet or less from the floor or working platform. It guards the turning draw bar with a non-rotating, smooth, welded-steel enclosure, secured firmly to the mill with a powerful ring magnet and safety anchor chain. Simple to install, the draw bar cover prevents clothing, hair or hands from being grabbed by the moving shaft.
According to Jason Swisher, Rockford Systems production manager, "Our new Draw Bar Cover features high-quality construction with smoothed welding seams and finished edges, designed to protect mill workers from hazardous rotating drawbars. It was engineered with input from machine makers and operators to ensure that it gets the job done right."
This product can be used on any vertical mill that has up to a 7" extrusion. It compliments the full line of Rockford Systems milling machine guards, shields and controls that protect thousands of workers everyday around the world.
Related Glossary Terms
- extrusion
extrusion
Conversion of an ingot or billet into lengths of uniform cross section by forcing metal to flow plastically through a die orifice.
- gang cutting ( milling)
gang cutting ( milling)
Machining with several cutters mounted on a single arbor, generally for simultaneous cutting.
- milling
milling
Machining operation in which metal or other material is removed by applying power to a rotating cutter. In vertical milling, the cutting tool is mounted vertically on the spindle. In horizontal milling, the cutting tool is mounted horizontally, either directly on the spindle or on an arbor. Horizontal milling is further broken down into conventional milling, where the cutter rotates opposite the direction of feed, or “up” into the workpiece; and climb milling, where the cutter rotates in the direction of feed, or “down” into the workpiece. Milling operations include plane or surface milling, endmilling, facemilling, angle milling, form milling and profiling.
- milling machine ( mill)
milling machine ( mill)
Runs endmills and arbor-mounted milling cutters. Features include a head with a spindle that drives the cutters; a column, knee and table that provide motion in the three Cartesian axes; and a base that supports the components and houses the cutting-fluid pump and reservoir. The work is mounted on the table and fed into the rotating cutter or endmill to accomplish the milling steps; vertical milling machines also feed endmills into the work by means of a spindle-mounted quill. Models range from small manual machines to big bed-type and duplex mills. All take one of three basic forms: vertical, horizontal or convertible horizontal/vertical. Vertical machines may be knee-type (the table is mounted on a knee that can be elevated) or bed-type (the table is securely supported and only moves horizontally). In general, horizontal machines are bigger and more powerful, while vertical machines are lighter but more versatile and easier to set up and operate.
- milling machine ( mill)2
milling machine ( mill)
Runs endmills and arbor-mounted milling cutters. Features include a head with a spindle that drives the cutters; a column, knee and table that provide motion in the three Cartesian axes; and a base that supports the components and houses the cutting-fluid pump and reservoir. The work is mounted on the table and fed into the rotating cutter or endmill to accomplish the milling steps; vertical milling machines also feed endmills into the work by means of a spindle-mounted quill. Models range from small manual machines to big bed-type and duplex mills. All take one of three basic forms: vertical, horizontal or convertible horizontal/vertical. Vertical machines may be knee-type (the table is mounted on a knee that can be elevated) or bed-type (the table is securely supported and only moves horizontally). In general, horizontal machines are bigger and more powerful, while vertical machines are lighter but more versatile and easier to set up and operate.
- turning
turning
Workpiece is held in a chuck, mounted on a face plate or secured between centers and rotated while a cutting tool, normally a single-point tool, is fed into it along its periphery or across its end or face. Takes the form of straight turning (cutting along the periphery of the workpiece); taper turning (creating a taper); step turning (turning different-size diameters on the same work); chamfering (beveling an edge or shoulder); facing (cutting on an end); turning threads (usually external but can be internal); roughing (high-volume metal removal); and finishing (final light cuts). Performed on lathes, turning centers, chucking machines, automatic screw machines and similar machines.
