One of the most common tools found in almost every workshop around the world is the Vertical Machining Mill (VMM). The basic arrangement of a VMM includes a spindling cutting tool that is fixed above the workpiece perpendicularly to the cutting plane. The workpiece is fastened on a table that is parallel to the ground and can be moved by the machine operator using levers.
VMCs are mostly found in two distinct types that are able for different machining possibilities. The first one is the "bed mill" while the second type is the "turret mill". The main difference between the two is that the first one allows the perpendicular movement of the workpiece table while the later also supports movement along the axis that is parallel to the cutting head.
Benefits over Horizontal Centers
Vertical machining mills may not be as versatile and as rigid the horizontal ones, but they can be very handy when simple processing of small parts is required. They are easier and faster to set up and get the work started and machinists can work in very tight tolerances compared to the larger, horizontal mills. They also take much less space and cost way less. Last but not least, vertical mills feature a retractable quill that can be used for accurate milling and especially boring processes.
Ways VMCs Are Used
Vertical Machining Centers can help machinists perform a wide range of tasks in the metal processing spectrum. Ally to this versatility is the rich collection of special cutting heads, offset boring heads and rotary tables that can be added to the machine in order to perform one of the following tasks:
1. The most standard type of milling done with the vertical machine is face or slab milling. This is basically the milling of flat surfaces with the workpiece being mounted parallel to the working table. Using this simple technique, machinists can create indentations, flattening, and leveling.
2. In a similar way, if the workpiece is silently mounted, the milling is performed in an inclination. This angular cutting can produce dovetails for joints.
3. Going a step further, machinists can use the straddle milling technique that basically utilized two milling heads that are cutting parallel to each other. This is done by fixing the cutters on the same arbor. Using this technique, VMCs can mill hexagons on bolt heads or open parallel grooves on flat surfaces.
4. When in need to remove the rough edges on a workpiece, VMMs can be equipped with convex cutters and produce high fidelity grooves, concaves and corner rounding.
5. Another popular use is cutting square-end or round-end keyways along the axis of shafts. This is achieved by using special key slot milling cutters that have the proper diameter and width for milling a keyway that fits the corresponding key.
6. By combining the straddle milling and the angular cutting techniques, skilled machinists can produce high precision splines and gears suitable for very low tolerance applications with the minimum gamble.
7. Last, the retractable quill that is available in VMCs allows for the obvious ability to bore holes with great accuracy. Although this type of boring is not generally preferred in most cases, holes of diameter close to the available cutting head range can be realized relatively quickly.
VMCs are mostly found in two distinct types that are able for different machining possibilities. The first one is the "bed mill" while the second type is the "turret mill". The main difference between the two is that the first one allows the perpendicular movement of the workpiece table while the later also supports movement along the axis that is parallel to the cutting head.
Benefits over Horizontal Centers
Vertical machining mills may not be as versatile and as rigid the horizontal ones, but they can be very handy when simple processing of small parts is required. They are easier and faster to set up and get the work started and machinists can work in very tight tolerances compared to the larger, horizontal mills. They also take much less space and cost way less. Last but not least, vertical mills feature a retractable quill that can be used for accurate milling and especially boring processes.
Ways VMCs Are Used
Vertical Machining Centers can help machinists perform a wide range of tasks in the metal processing spectrum. Ally to this versatility is the rich collection of special cutting heads, offset boring heads and rotary tables that can be added to the machine in order to perform one of the following tasks:
1. The most standard type of milling done with the vertical machine is face or slab milling. This is basically the milling of flat surfaces with the workpiece being mounted parallel to the working table. Using this simple technique, machinists can create indentations, flattening, and leveling.
2. In a similar way, if the workpiece is silently mounted, the milling is performed in an inclination. This angular cutting can produce dovetails for joints.
3. Going a step further, machinists can use the straddle milling technique that basically utilized two milling heads that are cutting parallel to each other. This is done by fixing the cutters on the same arbor. Using this technique, VMCs can mill hexagons on bolt heads or open parallel grooves on flat surfaces.
4. When in need to remove the rough edges on a workpiece, VMMs can be equipped with convex cutters and produce high fidelity grooves, concaves and corner rounding.
5. Another popular use is cutting square-end or round-end keyways along the axis of shafts. This is achieved by using special key slot milling cutters that have the proper diameter and width for milling a keyway that fits the corresponding key.
6. By combining the straddle milling and the angular cutting techniques, skilled machinists can produce high precision splines and gears suitable for very low tolerance applications with the minimum gamble.
7. Last, the retractable quill that is available in VMCs allows for the obvious ability to bore holes with great accuracy. Although this type of boring is not generally preferred in most cases, holes of diameter close to the available cutting head range can be realized relatively quickly.
About the Author:
Absolute Machine Tools, Inc. offers several high quality vertical milling machines. Learn more on their website about their machine tools for sale.
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