Regular CNC machine tool processing | runwei machine tool price is reasonable

  CNC machine tool was invented by John · Parsons invented in the last century
With the development of electronic information technology, the world machine tool industry has entered the era of electromechanical integration with digital manufacturing technology as the core, in which CNC machine tool is one of the representative products
CNC machine tool is the processing machine of manufacturing industry and the important foundation of national economy
It provides equipment and means for all sectors of the national economy, and has uncontrolled economic and social effects
Industrialized countries such as Europe, the United States and Japan have successively completed the industrialization process of numerical control machine tools, while China started in the 1980s and is still in the stage of development
As the cornerstone of modern industry, the machine tool industry is a key problem that cannot be bypassed in the process of industrial economic development
Due to congenital deficiencies, China's machine tool industry has been falling behind the mainstream level of foreign countries in the development of medium and high-class machine tool projects, and is in a process of catching up
Next, Hebei runwei Machine Tool Manufacturing Co
, Ltd（ http://www
rwjczz
com/ ）Here is a brief introduction to the three characteristics and maintenance technology of CNC machine tools
I hope it can help you:   The characteristics of CNC machine tools mainly include the following three aspects:   1
The transmission chain is short   The two direction movements of the tool rest of the NC machine tool are driven by two servo motors respectively
The servo motor is directly connected with the lead screw to drive the tool rest to move
The servo motor and the lead screw can also change speed steplessly according to the control command
There is no need to use multi-level gear pairs to change speed between it and the spindle
With the development of motor wide speed regulation technology, the goal is to cancel the variable speed gear pair
At present, several speed ranges need to be changed through the primary gear pair
Therefore, the structure of the headstock is much simpler than that of traditional machine tools 2
High rigidity   It is matched with the high-precision control of the control system, so that in order to drive easily, the lubrication of CNC machine tools is relatively sufficient, and most of them adopt oil mist automatic lubrication to adapt to high-precision processing 3
Drag lightly   Generally, ball screw pairs are used for tool carriage movement
In order to improve the wear resistance of NC machine tool guide rails, steel inlaid guide rails are generally used, so that the accuracy of the machine tool can be maintained for a long time and the service life can be extended
In addition, the CNC machine tool also has the structural characteristics of sufficient processing cooling and tight protection, and it is in a fully closed or semi closed state during automatic operation
CNC machine tools are generally equipped with automatic chip removal devices 　　  The development of NC technology of special machine tools will be the development direction of manufacturing industry in the future
The development of tool magazine has greatly promoted the development of machining center, while the structure of disc tool magazine solves many problems such as the capacity of tool magazine and the machining range of machine tools
In the traditional manufacturing industry, a lot of time is spent on changing tools, loading and unloading parts, measuring and handling parts and other non cutting time, and the cutting time only accounts for a small proportion of the whole working hours
The tool magazine has this “ Operation concentration ” Therefore, NC machining, especially the machining center with tool magazine, is the development direction of manufacturing industry in the future 1
Fault maintenance of poor indexing of NC machine turntable   Fault phenomenon: a CNC machine tool with supporting fanucomc and model XH754 has obvious dislocation and loud sound when the turntable falls after indexing Analysis and processing process: when the turntable falls after indexing, the staggered motion is obvious, indicating that the indexing position of the turntable is quite different from the positioning position of the ratchet disk
If the position also has staggered motion when returning to zero, the 4th axis grid offset (parameter 0511) can be adjusted to solve it
If there is a gap in the turntable transmission, the 4th axis gap compensation (parameter 0538) can be adjusted
If there is an error in the mechanical pitch, the 4th axis screw compensation can be adjusted accordingly
In this example, it is found that the turntable also moves wrongly after returning to zero, which can be solved after adjusting the value of 0511 2
Common overload alarms and solutions   Fault phenomenon: a special CNC machine tool machining center equipped with fanuc-0m system often gives an overload alarm in the process of machining
The alarm number is 434
The manifestation is that the z-axis motor current is too large, the motor heats up, and the alarm disappears after stopping for about 40min
Then it works for a while, and the same kind of alarm appears again Analysis and treatment process: after inspection, the electric servo system has no fault, which is estimated to be caused by the overload and immobility In order to distinguish between electrical fault and mechanical fault, remove the z-axis motor from the machine, and the fault will no longer appear when it is operated again
It is confirmed that the mechanical lead screw or moving part is too tight
After adjusting the z-axis lead screw to loosen the nut, the effect was not obvious
Later, the z-axis guide rail insert was adjusted, the machine load was significantly reduced, and the fault was eliminated Now we will introduce the three characteristics and maintenance technology of CNC machine tools to you
I hope it can be helpful to you
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