What are the tool changing forms of CNC machine tools? What are their characteristics?
1. Row of knives:
Array-type CNC lathe: All the knives are arranged in a row on the Because all the knives have no tool change action, the gap after the tool holder rotates is eliminated. If the outer diameter is large, the knife will not be opened. This means that the distance between tool No. 1 and tool 2 must be able to pass the outer diameter of the workpiece. That is, when installing and programming the tool holder of the row-type tool holder, the position of the other tool must be considered to avoid interference. ,
2. Indexable turret:
The turret-type rotating tool holder can hold 4 to 12 knives. Tool feeding and retracting, as well as programming, are more convenient than the row-type tool holder. It is generally used to process workpieces with high dimensional accuracy requirements, many tools, and relatively large outer diameter.
What is the difference between CNC turret machine programming?
Generally, in processing operations, the machines used must have a certain degree of accuracy, and turret machine tools just meet this point. So what is the difference between turret machine tools and ordinary CNC? How to choose processing parameters? Let's find out with Tuodong Precision sales staff!
Generally, in processing operations, the machines used must have a certain degree of accuracy, and turret machine tools just meet this point. So what is the difference between turret machine tools and ordinary CNC? How to choose processing parameters? Let's find out with Tuodong Precision sales staff!
What is the difference between turret machine tools and ordinary CNC? How to choose processing parameters?
Turret machines and general CNC
1. What are the power requirements for turret machine tools?
Generally, the machining center is installed in the machine processing workshop. Not only does the ambient temperature change greatly and the usage conditions are poor, but there are also many kinds of mechanical and electrical equipment, causing the power grid to fluctuate greatly. Therefore, the location where the machining center is installed requires strict control of the power supply voltage. The power supply voltage fluctuation must be within the allowable range and remain relatively stable. Otherwise, it will affect the normal operation of the CNC system of the machining center.
2. How to choose the parameters for lathe processing?
Determine the rotation speed first, based on the material of the blade and the material of the processed parts. Generally, carbide blades process No. 45 steel with a linear speed of 70 to 120 meters. Calculate the rotation speed based on the diameter. Then determine the amount of cutting. Eat less for hard materials and more for soft materials. It also depends on the power of the machine tool. For 6140 machine tools, when processing steel materials, the single side should be 5 mm. It also depends on the rigidity adjustment of the tool. Finally, judge the tool feed amount, from 0.03 to 0.3 per revolution. If you don't know how to give it, give it 0.15, and then see the processing effect. If the surface is rough, reduce it. If you want it to be faster, increase it. Change it in steps of 0.05.
3. What is the difference between turret machine tools and ordinary CNC?
The turret is generally more suitable for larger workpieces, but for small parts it is not as fast as ordinary CNC. Ordinary CNC is more suitable for small parts. If you want to make a large piece, you can't even schedule the knife. Also, the price of the knife turret is generally much more expensive than that of the knife row. The price of CNC machine tools is about a few hundred yuan per piece, and the more expensive ones are one to two thousand yuan. The price of CNC machine tools is affected by many aspects, such as brand, category, specification, market, etc. Before choosing to buy, it is necessary to understand and compare in many aspects.
What is the difference between turret machine tools and ordinary CNC? How to choose processing parameters?
Turret machines and general CNC
What is the difference between turret machine tools and ordinary CNC? How to choose processing parameters? Using a turret machine tool can quickly complete processing operations, so Tuodong Precision highly recommends using this machine in processing!
Advantages and disadvantages of dual-spindle dual-turret turning and milling compound machine tools
The dual-spindle, dual-tool-post turn-turn-milling machine has two oppositely arranged spindles and two sets of tool holders with Y-axis control. Therefore, two different parts (or the same part) can be processed simultaneously by turning and milling. The unique dual-channel control system of the machine tool can realize four-axis linkage processing of dual spindles and dual tool holders, and can complete turning, drilling, milling and even grinding composite processing of some precision parts with complex shapes. At the same time, two sets of spindles and tool holders can be controlled Or linkage control.
The overall machine tool adopts the layout of dual spindles in parallel. The spindle has the C-axis control function of indexing interpolation, and the left and right spindles have rotation synchronization (speed synchronization) function. It can realize the docking transfer of the left and right spindles of the parts without stopping the machine, thereby realizing the turning and milling compound processing of all-round processing in one clamping.
The unique T-shaped inclined bed structure of the machine tool facilitates the discharge of chips and the recycling of coolant. The X and Z axes are arranged vertically separately, and the accuracy of the two axes does not affect each other. In traditional machine tools, due to the stacked arrangement of the X and Z axes, the Z axis moves behind the X axis. In this way, the error of the Z-axis movement must be transmitted to the X-axis. The superposition of the two errors will definitely affect the dimensional accuracy of the outer circle of the part, which is not conducive to the accuracy of the machine tool.
The machine tool tool arrangement adopts a three-dimensional tool arrangement structure. Compared with the turret tool holder, the replacement time is shorter and the failure rate is extremely low. The tool holder has a unique and more tool installation positions, which can meet the needs of different processing parts. , multiple types of tool holders can be installed, and various tools can be clamped from multiple directions and positions, so that the characteristics of the parts can be processed more reasonably.
The power tools configured in the machine tool can hold end mills, disc milling cutters, drills and other tools, and can be installed horizontally, vertically, tilted and other installation positions to facilitate the composite processing of parts from various directions.
The machine tool can be equipped with automatic feeders, automatic splicers, protective doors and other additional facilities and form a flexible processing production line to complete the automated processing of parts.
