Horizontal boring machine
Encyclopedia
A horizontal boring machine or horizontal boring mill is a machine tool
which bores holes in a horizontal
direction. There are three main types — table, planer and floor. The table type is the most common and, as it is the most versatile, it is also known as the universal type.
A horizontal boring machine has its work spindle parallel to the ground and work table. Typically there are 3 linear axes in which the tool head and part move. Convention dictates that the main axis that drives the part towards the work spindle is the Z axis, with a cross-traversing X axis and a vertically-traversing Y axis. The work spindle is referred to as the C axis and, if a rotary table is incorporated, its centre line is the B axis.
Horizontal boring machines are often heavy-duty industrial machines used for roughing out large components but there are high-precision models too. Modern machines use advanced CNC control systems and techniques. Charles DeVlieg
entered the Machine Tool Hall of Fame for his work upon a highly precise model which he called a JIGMIL. The accuracy of this machine convinced the USAF to accept John Parson's
idea for numerically controlled machine tools
.
Machine tool
A machine tool is a machine, typically powered other than by human muscle , used to make manufactured parts in various ways that include cutting or certain other kinds of deformation...
which bores holes in a horizontal
Horizontal plane
In geometry, physics, astronomy, geography, and related sciences, a plane is said to be horizontal at a given point if it is perpendicular to the gradient of the gravity field at that point— in other words, if apparent gravity makes a plumb bob hang perpendicular to the plane at that point.In...
direction. There are three main types — table, planer and floor. The table type is the most common and, as it is the most versatile, it is also known as the universal type.
A horizontal boring machine has its work spindle parallel to the ground and work table. Typically there are 3 linear axes in which the tool head and part move. Convention dictates that the main axis that drives the part towards the work spindle is the Z axis, with a cross-traversing X axis and a vertically-traversing Y axis. The work spindle is referred to as the C axis and, if a rotary table is incorporated, its centre line is the B axis.
Horizontal boring machines are often heavy-duty industrial machines used for roughing out large components but there are high-precision models too. Modern machines use advanced CNC control systems and techniques. Charles DeVlieg
Charles DeVlieg
Charles B. DeVlieg, called Charlie or CB was a pioneering tool designer who founded the DeVlieg Machine Tool Company in Michigan.He developed a series of increasingly precise horizontal boring machines which culminated in the JIGMIL...
entered the Machine Tool Hall of Fame for his work upon a highly precise model which he called a JIGMIL. The accuracy of this machine convinced the USAF to accept John Parson's
John T. Parsons
John T. Parsons pioneered numerical control for machine tools in the 1940s.These developments were done in collaboration with his employee Frank L. Stulen, who Parsons hired when he was head of the Rotary Wing Branch of the Propeller Lab at Wright-Patterson Air Force Base, in April 1946...
idea for numerically controlled machine tools
Numerical control
Numerical control refers to the automation of machine tools that are operated by abstractly programmed commands encoded on a storage medium, as opposed to controlled manually via handwheels or levers, or mechanically automated via cams alone...
.