CNC composite turning and milling machine tools refer to machine tools capable of performing both turning and milling. It can be used as both a lathe and a milling machine. Today’s vertical machining centers and horizontal machining centers are both turning, milling, drilling and boring machine tools.
The current CNC turning and milling compound machine tools are mainly of two different types. One is a combination of different treatment methods based on energy or mode of movement; the other is based on the principle of process concentration and machining technology. and the processing of composites by grinding is one of the fastest developing processing methods in this field in recent years.
Machining center: mainly milling! Only the three X axes; In addition to milling, it can also be turned! This machine was first used to process propellers! This must be done to avoid loss of accuracy and loss of marks caused by secondary tightening!
CNC turning and milling compound machine tools are one of the main types of compound processing machine tools. In addition to having the functions of CNC lathes, they can also do plane milling, drilling, tapping, straight grooves, spiral grooves and gear milling, etc. ., with turning, milling and composite functions such as boring, can realize the concept of single clamping processing and complete completion.
A CNC machine tool that meets all of the following characteristics is a compound turn-mill CNC machine tool:
1. The spindle motor adopts a servo motor, and the spindle rotation movement and the feeding movement can be linked.
2. In addition to configuring the turret tool holder of the CNC lathe, at least equip it with power tools or configure an independent power tool holder.
Turning centers are generally compound turning-milling machine tools.
advantage
1) Shorten the product manufacturing process chain and improve production efficiency.
The composite CNC turning and milling center can be installed with a variety of special tools. The new tool layout reduces tool change time and improves processing efficiency. Turning and milling composite processing can thus complete all or most processing procedures in a single clamping operation. considerably shortening the product manufacturing chain. This not only reduces the production auxiliary time caused by changes in the installation of accessories, but also reduces the manufacturing cycle of tooling accessories and waiting time, which can greatly improve production efficiency. .
In terms of processing efficiency, the new CNC turning and milling compound center can be loaded with more special processing tools. The tool layout is completely different from previous traditional CNC machining machines, which can greatly reduce tool changing time and improve processing efficiency. The combined processing of turning and milling can complete all or most of the processing procedures in one clamping, thereby greatly shortening the product manufacturing process chain.
2) Reduce the number of clamping times and improve processing accuracy.
Reducing the number of card installations avoids the accumulation of errors caused by positioning reference conversion. At the same time, most of the current turning and milling composite processing equipment has online detection functions, which can realize on-site detection and precise control of key data in the manufacturing process, thereby improving the product processing precision; Integrated bed design improves the ability to handle difficult tasks. Gravity processing capacity of cutting materials; The compound turning and milling machine tool is equipped with an automatic feeding device, which can realize automatic feeding and continuous operation, basically realizing the assembly line operation of a single machine tool.
During turning and milling, the tool makes intermittent cuts and can achieve relatively short cuts on parts made of any material, facilitating automatic chip removal. Intermittent chips can give the tool enough time to cool, reduce thermal deformation of the workpiece and increase tool life. Compared with traditional CNC machine tools, the turning and milling speed is higher, the quality of cut products is better, the cutting force is reduced, the precision of thin-walled rods and thin rods is improved, and the forming quality of the part is high. .
Since the cutting speed can be decomposed into the workpiece rotation speed and the tool rotation speed, according to the mechanical characteristics, the same processing effect can be achieved by increasing the tool rotation speed and reducing the rotation speed of the tool. This characteristic is particularly suitable for processing large forging blanks. Effective, because reducing the speed of the forging blank can eliminate vibration or periodic changes in radial cutting force caused by the eccentricity of the workpiece, thereby ensuring smooth cutting of the workpiece. workpiece and reduce errors in workpiece processing.
When the turning-milling compound machine tool processes the workpiece, the low speed of the workpiece can effectively reduce the centrifugal force of the workpiece, avoid deformation of the workpiece, and help improve the processing precision of the workpiece. Using larger longitudinal feed in turning and milling processing can also achieve precise cutting, and the surface roughness can also be effectively guaranteed. The compound turning and milling machine tool can use different methods such as turning, milling, drilling and reaming to process. workpiece and workpiece can also be processed. It can complete multi-faceted processing tasks with just one clamping, ensuring processing accuracy.
3) Reduce floor space and production costs.
The compact and aesthetic design improves space utilization and makes maintenance and repair more convenient, allowing customers to achieve maximum satisfaction. Although the single price of composite turning and milling processing equipment is relatively high, due to the shortening of the manufacturing process chain and cost. Reducing the equipment required for the product, as well as reducing the number of toolings, workshop floor space and equipment maintenance costs, can effectively reduce the overall fixed asset investment, costs production operation and management.
Secondly, the production cost savings of CNC turning and milling compound center machine tools are also visible. The compact design improves space utilization and makes maintenance more convenient. Currently, a single compound CNC turning and milling center has the equipment price is relatively. high, but reducing equipment and maintenance expenses required for the manufacturing process and instant leveling can effectively control production operation and management costs.
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