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Basic Overview and Classification of Boring Machines
Boring Machine Overview: A machine tool that primarily uses a boring bar to bore pre-machined holes in a workpiece. Typically, the boring bar rotates as the main motion, and the boring bar or workpiece moves as the feed motion.
Boring Machine Overview:A machine tool that uses a boring bar to bore pre-machined holes in a workpiece. Typically, the boring bar rotates as the main movement, and the movement of the boring bar or workpiece is the feed movement. It is mainly used for machining high-precision holes or finishing multiple holes in one positioning, and it can also perform other machining surfaces related to hole finishing. With different tools and accessories, drilling, milling, and cutting can also be performed. The machining accuracy and surface quality are higher than those of drilling machines. Boring machines are the main equipment for machining large box-type parts. Threads and machining outer circles and end faces, etc.
Classification of Boring Machines:
Horizontal Boring Machine
Horizontal boring machines are the most widely used type of boring machine. It mainly performs hole machining, with boring accuracy up to IT7 and surface roughness Ra value of 1.6-0.8um. The main parameter of the horizontal boring machine is the spindle diameter.
The boring spindle is arranged horizontally and performs axial feed, the spindle box moves vertically along the front column guide rail, and the worktable moves longitudinally or laterally to perform boring machining. This machine tool is widely used and relatively economical. It is mainly used for hole machining of box-type (or bracket-type) parts and other machining surfaces related to holes. The appearance is beautiful and generous, and the overall layout is symmetrical and coordinated. The bed, column, and lower slide all adopt rectangular guide rails, with good stability. The guide rails are cryogenically quenched and hardened, with high wear resistance. Digital synchronous display, intuitive and accurate, can improve efficiency and reduce costs.
Coordinate Boring Machine
The coordinate boring machine is a type of high-precision machine tool. Its structural feature is a precision measuring device for coordinate positions. Coordinate boring machines can be divided into single-column coordinate boring machines, double-column coordinate boring machines, and horizontal coordinate boring machines. Boring machines with precision coordinate positioning devices are mainly used for boring hole systems with high requirements on size, shape, and especially position accuracy. They can also be used for precision coordinate measurement, template scribing, and scaling.
Single-column coordinate boring machine: The spindle drives the tool to perform rotary main motion, and the spindle sleeve performs feed motion along the axial direction. Features: simple structure, easy operation, especially suitable for machining precise holes in plate-like parts, but its rigidity is poor, so this structure is only suitable for small and medium-sized coordinate boring machines.
Double-column coordinate boring machine: The tool is installed on the spindle to perform the main motion, and the workpiece is installed on the worktable and moves along the bed guide rail for longitudinal linear movement with the worktable. It has better rigidity, and large coordinate boring machines all adopt this structure. The main parameter of the double-column coordinate boring machine is the width of the worktable.
Horizontal coordinate boring machine: The worktable can rotate in the horizontal plane, and the feed motion can be realized by longitudinal movement of the worktable or axial movement of the spindle. It has higher machining accuracy.
Diamond Boring Machine
Features: Machining is performed with a very small feed amount and a very high cutting speed, so the machined workpiece has high dimensional accuracy (IT6), and the surface roughness can reach 0.2 microns. A boring machine that uses diamond or cemented carbide tools for precision boring.
Deep Hole Drilling and Boring Machine
The deep hole drilling and boring machine itself has high rigidity and good accuracy retention, a wide range of spindle speeds, and the feed system is driven by an AC servo motor, which can meet the needs of various deep hole machining processes. The oiler fastening and workpiece clamping adopt hydraulic devices, the instrument display is safe and reliable. The following working modes can be selected: 1. Workpiece rotation, tool rotation, and reciprocating feed motion, suitable for drilling and small-diameter boring; 2. Workpiece rotation, tool does not rotate only reciprocating motion, suitable for boring large-diameter holes and sleeve machining; 3. Workpiece does not rotate, tool rotates and reciprocating feed motion, suitable for drilling and small-diameter boring of complex workpieces.
Floor-Type Boring Machine
The workpiece is placed on the floor-type worktable, and the column moves longitudinally or laterally along the bed. Used for machining large workpieces.
In addition, there are milling-boring machines that can perform milling, or deep-hole drilling and boring machines that perform drilling.
boring mill,Coordinates
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