Usually, the rotation of the boring tool is the main movement, and the movement of the boring tool or workpiece is the feed movement.It is mainly used for machining high-precision holes or positioning multiple holes at once to complete the finishing, in addition, it can also be engaged in other machining surfaces related to hole finishing.The use of different tools and accessories can also be used for drilling, milling, and cutting. Its machining accuracy and surface quality are higher than that of drilling machines.milling&boring machine is the main equipment for processing large box parts.Thread and process the outer circle and end face, etc.
milling&boring machines are divided into horizontal milling&boring machines, floor boring and milling machines, diamond milling&boring machines and coordinate milling&boring machines.
(1) Horizontal milling&boring machine
Horizontal milling&boring machine is the most widely used type of milling&boring machine.It is mainly hole machining, the boring accuracy can reach IT7, and the surface roughness Ra value is 1.6-0.8um.The main parameter of the horizontal milling&boring machine is the diameter of the shaft.
The boring shaft is arranged horizontally and axially fed, the headstock moves vertically along the guide rail of the front column, and the workbench moves vertically or laterally for boring.This kind of machine tool is widely used and relatively economical. It is mainly used for hole machining of box (or bracket) parts and other machining surfaces related to holes.
(2) Coordinate milling&boring machine
Coordinate milling&boring machine is a kind of high-precision machine tool.Its structural feature is a precision measuring device with coordinate positions.Coordinate milling&boring machines can be divided into single-column coordinate milling&boring machines, double-column coordinate milling&boring machines and horizontal coordinate milling&boring machines.
A milling&boring machine with a precision coordinate positioning device, it is mainly used for boring holes with high size, shape, and especially positional accuracy requirements, and can also be used for precision coordinate measurement, model marking, and scale work.
Single-column coordinate milling&boring machine: the spindle drives the tool to rotate the main movement, and the spindle sleeve makes the axial feed movement.Features: Simple structure, easy to operate, especially suitable for machining precision holes of plate-like parts, but its rigidity is poor, so this structure is only suitable for small and medium-sized coordinate milling&boring machines.
Double-column coordinate milling&boring machine: the tool is installed on the spindle for the main movement, and the workpiece is installed on the workbench and the workbench moves in a longitudinal straight line along the bed guide rail.Its rigidity is good, and large coordinate milling&boring machines use this structure.The main parameter of the double-column coordinate milling&boring machine is the width of the work surface. Horizontal coordinate milling&boring machine: The workbench can rotate in a horizontal plane, and the feed movement can be achieved by the longitudinal movement of the workbench or the axial movement of the spindle.Its machining accuracy is high.
(3) Diamond milling&boring machine
Diamond milling&boring machine is characterized by a small feed and high cutting speed for processing, so the processed workpiece has high dimensional accuracy (IT6) and surface roughness can reach 0.2 microns.
A milling&boring machine that uses tools such as diamond or cemented carbide for precision boring.
(4) Deep hole drilling and boring machine
The deep hole drilling and milling&boring machine itself has strong rigidity, good accuracy, wide spindle speed range, and the feed system is driven by an AC servo motor, which can adapt to the needs of various deep hole processing techniques.Hydraulic devices are used for the fastening of the oil injector and the jacking of the workpiece, and the instrument is displayed, safe and reliable.You can choose from the following working forms:
1.Workpiece rotation, tool rotation and reciprocating feed movement, suitable for drilling and small diameter boring;
2.The workpiece rotates and the tool does not rotate, only for reciprocating movement, which is suitable for boring large-diameter holes and nesting processing; 3.The workpiece does not rotate, the tool rotates and the reciprocating feed movement are suitable for drilling of complex workpieces, drilling of small diameters and boring of small diameters.
(5) Floor milling&boring machine
The workpiece is placed on the floor-to-ceiling workbench, and the column moves vertically or laterally along the bed.Used for machining large workpieces.
In addition, there are milling and milling&boring machines that can be milled, or deep hole drilling and milling&boring machines for drilling.
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