Miller Plasma Cutters Can Cut Through Metal
The Plasma Cutting Machine of the invention includes a constant height plasma arc cutter
, a rolling table and a plasma cutter carrying gantry driven from opposite sides. The rolling table is rolled from a loading position where metal sheets are positioned thereon to a cutting position beneath the plasma arc cutter. The plasma arc cutter is held at a constant height above the rolling table. Each metal sheet loaded onto the rolling table is supported on adjustable pins. The entire cutting area is enclosed and vented. The plasma cutter and the rolling table are supported by the cutting system support. A cutter housing supports a transparent curtain, and the transparent curtain encloses the plasma arc cutter. A gantry is supported by the cutter housing, and the gantry supports the plasma cutter. The rolling table includes a table frame, adjustable pins and table wheels. The adjustable pins and the table wheels are connected to the table frame. The adjustable pins extend above and below the pin engaging portion of the table frame. The plasma arc cutter includes a plasma arc cutter member and a cutter positioner. The plasma arc cutter member includes a plasma arc cutting portion and a programmable cutter control. The cutter positioner includes a cutter support and a programmable cutter position controller. The cutter support includes a gantry and a rotatable pinion at each end of the gantry.
Miller plasma cutters use a combination of electricity and air pressure to create a stream of plasma that can cut through metal. There are two different categories of Miller plasma cutters: those with built-in air compressors and those without. A plasma cutter with a built-in air compressor has the added convenience of portability, but does not have the cutting capacity of the larger external air compressor models. Both types of
plasma cutters use similar controls for amperage and airflow.Read the operating manual for the model of Miller plasma cutter you intend to use to become familiar with the plasma cutter's controls.
This invention relates to a plasma cutting system of improved efficiency and safety. The improvements of the invention each taken alone or in combination add to operator convenience and productivity and provide equipment portability.
Union Carbide Corporation, Linde Division, Technical Sales Manual, January, 1983 entitled "proDUCTor AUTOMATIC SHEET METAL SYSTEM" discloses a computer aided manufacturing system having two parts, a cutting center and an input control terminal. The cutting center consists of a gantry type machine with microprocessor numerical control, a plasma cutting system, one or more down draft cutting tables and a fume-smoke collector. Plug in the plasma cutter and set the amperage gauge as specified by the chart affixed to the inside of the Miller plasma cutter for the thickness of the metal you are cutting.Remove the cup from the plasma torch and inspect the plasma tip for signs of wear. Replace the cutting tip if you notice large amounts of gouging in the copper tip, and reassemble the torch head.
These problems of the prior art are overcome by the improved
plasma cutting system of the present invention. The fume hazards and other loading difficulties of the prior art are either compensated for or not present in a plasma cutting system in accordance with the present invention.The plasma cutting system of the invention includes a constant height plasma cutter, a rolling table and cutting system support. The plasma cutter and the rolling table are supported by the cutting system support. The rolling table is adapted to be positioned on the cutting system support at a loading position at a cutting position. The cutting position is beneath the plasma cutter. Turn on the Miller plasma cutter and secure the scrap piece of sheet metal to a non-combustible firm surface with the self-locking pliers.Put on your leather gloves and tinted safety glasses, and place the copper tip of the plasma torch the distance required by the Miller plasma cutter's operating manual.
In the plasma cutting system of the invention a cutter housing supports a transparent curtain, and the transparent curtain encloses the plasma cutter. A gantry is supported by the cutter housing, and the gantry supports the
plasma cutter manufacturer . The rolling table is adapted to be positioned on the cutting system support at a loading position and at cutting position. The cutting position is beneath the plasma cutter. The rolling table includes a table frame, adjustable pins and table wheels. The adjustable pins and the table wheels are connected to the table frame. The adjustable pins extend above and below the pin supporting channels of the table frame. The plasma cutter includes a constant height plasma arc cutter and a cutter positioner. The plasma arc cutter includes a plasma arc cutting portion and a programmable cutter control. The cutter position includes a cutter support and a programmable cutter position controller. The cutter support includes a gantry and a rotatable pinion at each end of the gantry.
Depress the tip of the plasma torch to start the cut. The torch will have a delay, so do not lift the plasma torch away from the surface of the metal.Slowly drag the tip of the plasma cutter along the surface of the sheet metal. Slow down your dragging speed if you notice sparks coming back toward you while you cut; speed up your dragging speed if the plasma arc repeatedly shuts off.The plasma cutting system of the invention optionally includes an additional rolling table. Each rolling table includes adjustable pins supported on transverse channel members.
In the
CNC plasma cutting machine of the invention the constant height plasma arc cutter is carried by a gantry driven from opposite sides. The rolling table is loaded in a loading position where the operator positions metal sheets thereon. The operator then rolls the loaded table to a cutting position beneath the plasma arc cutter. The plasma arc cutter is held at a constant height above the rolling table. Each metal sheet loaded onto the rolling table is supported on the adjustable pins. The entire cutting area is enclosed and vented thus protecting the operator from fumes produced during cutting.
source:
townhall|plasma cutting machine by: wenjun
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