CNC Horizontal Boring And Milling Machine

Luoyang Yujie Industry&Trade Co., Ltd is one of the most experienced manufacturers and suppliers of cnc horizontal boring and milling machine in China. Please feel free to buy cheap cnc horizontal boring and milling machine for sale here from our factory. All customized products are with high quality and competitive price.

A CNC horizontal boring and milling machine is a specialized machining tool used in the manufacturing and machining industries. It combines the capabilities of both horizontal boring and milling operations into a single machine, allowing for precise and versatile machining of large and complex workpieces. 

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Boring and Milling Capability: The primary function of these machines is to bore holes and mill surfaces. Boring involves enlarging existing holes or creating new ones with high precision. Milling involves cutting and shaping surfaces using various cutting tools, such as end mills or face mills.

Versatility: CNC horizontal boring and milling machines are versatile and can perform a wide range of operations, including drilling, reaming, tapping, threading, contouring, and more. This versatility makes them suitable for machining complex components with various features.

Large Work Envelope: These machines are typically designed to handle large workpieces. They have a spacious work envelope, which allows for machining large and heavy parts commonly found in industries like aerospace, automotive, and energy.

Tool Changer: Many CNC horizontal boring and milling machines are equipped with automatic tool changers. This feature allows the machine to switch between different cutting tools without manual intervention, increasing efficiency and reducing setup times.

Precision and Accuracy: CNC technology ensures high precision and accuracy in machining operations. This is crucial for industries that demand tight tolerances and quality standards.

CNC horizontal boring and milling machines are primarily used to process large, complex components such as housings and frames-typical examples include machine tool headstocks, gearbox casings, pump bodies, valve bodies, and internal combustion engine blocks. These parts often feature multiple bore arrays that require high positional accuracy between the bores themselves and relative to the end faces. They are also capable of processing heavy components like large flanges and bearing housings, finding widespread application in sectors such as construction machinery, mining equipment, and heavy machinery manufacturing.

Q1: How to select the XYZ axis travel of the CNC horizontal boring and milling machine?

A: The X axis refers to the transverse travel of the table, the Y axis refers to the vertical travel of the spindle head, and the Z axis refers to the longitudinal travel of the table. The selection shall be based on the maximum outer dimension of the workpiece and the thickness of the fixture, with a certain safety margin reserved. It is necessary to verify whether the spindle center height covers the upper and lower machining range of the workpiece, and ensure no interference between the rotating workpiece and the spindle/bed.

Q2: What are the key points for W-axis travel selection?

A: The W-axis travel is the axial extension length of the boring spindle, mainly used for deep cavity and long hole boring processing. The selection shall match the maximum hole depth of the workpiece plus the length of tools and tool holders. It should be noted that the rigidity decreases with the increase of W-axis extension. Avoid excessive W-travel for deep hole processing; properly increase the boring bar diameter to compensate for rigidity loss if necessary.

Q3: How to determine the boring bar diameter?

A: The boring bar diameter directly determines spindle rigidity, maximum torque and cutting capacity. It shall be selected according to the maximum boring diameter, cutting load and W-axis extension length. Larger diameter boring bars feature better vibration resistance, suitable for heavy cutting and deep hole machining. Meanwhile, it shall match the tool holder specification and meet the processing requirements of small aperture workpieces.

Q4: How to choose the size of the rotary table?

A: The table surface size must be larger than the maximum outer contour of the workpiece and fixture. Ensure the rotating workpiece will not exceed the table range or collide with machine parts. Square rotary tables have higher versatility. For one-time clamping and multi-surface processing, check the rotating sweep range of the workpiece to avoid interference with the spindle head and machine bed.

Q5: How to calculate and select the load capacity of the rotary table?

A: The rated load capacity covers the total weight of workpieces and fixtures. Long-term full-load operation is prohibited, and a 20%~30% load margin is recommended. For heavy workpieces with eccentric load, the actual bearing capacity and indexing accuracy of the rotary table will be reduced, which will affect the service life of the worm gear pair.

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