CNC lathe processing is more and more used in the modern manufacturing industry, and it takes advantage of the incomparable advantages of ordinary lathes. So what are the main features of CNC lathe processing? Let us look at it together:
The transmission chain of CNC lathe processing is short. Compared with general lathes, CNC lathes are no longer driven by motors, belts, and gears. Instead, the horizontal and vertical feeds are driven by two servo motors. CNC no longer uses traditional parts such as change wheels and clutches, and the transmission chain is greatly shortened.
High rigidity. CNC machining requires a high degree of rigidity to get used to high-precision processing requirements.
Drag gently. The movement of the tool post (work table) adopts the ball screw pair, which has little conflict and is easy to move. The special supporting bearings at both ends of the screw have a larger pressure angle than standard bearings, and they are selected at the factory. The smooth parts processed by CNC lathes are automatically smoothed with oil mist. All these measures make CNC lathes easy to move.
The CNC machining process is automatically completed according to the input program. The operator only needs to start the tool set, load and unload the workpiece, and change the tool. During the processing process, the main task is to investigate and supervise the operation of the lathe. However, because of the high skill content of CNC lathes, the operator's mental work has improved accordingly.
The positioning accuracy and repeat positioning accuracy of CNC lathes are very high, and it is easier to ensure the commonality of the dimensions of a batch of parts. As long as the process planning and procedures are correct and reasonable, coupled with careful operation, the parts can be guaranteed to obtain high machining accuracy. It is also convenient to implement quality control on the CNC lathe machining process.
CNC machining can process multiple processing appearances in clamping once again. Generally, only the first part is tested, saving many intermediate processes in general lathe processing, such as scribbling, size inspection, etc., reducing the extra time. And because the quality of the parts processed by the CNC lathe is stable, it brings convenience to the follow-up process, and its total power is significantly improved.
CNC machining generally does not require a lot of messy process equipment, and parts with messy shapes and high precision requirements can be processed by programming a processing program. When the product is remodeled, and the plan is changed, only the program needs to be changed, and there is no need to re-plan the tooling. Therefore, CNC machining can greatly shorten the product development cycle and provide a shortcut for the research and development of new products, product improvement, and modification.
CNC lathe machining and its processing skills are the foundation of computer-assisted production.
This is because CNC lathe machining equipment costs are high, the first processing preparation cycle is long, and the repair cost is advanced.
CNC lathe is a typical processing product of skill-intensive mechanics. It requires repair personnel to understand both mechanical and microelectronic repair knowledge, and at the same time, be equipped with better repair equipment.
With the gradual decline in the processing cost of CNC lathes, processing large quantities of parts has also emerged. When processing small batches and single-piece products, it can also be used if the debugging time of the program and the preparation time of the tooling can be shortened.
The CNC lathe has good rigidity, high manufacturing accuracy, accurate tool setting, and convenient scale compensation to process parts with high dimensional accuracy.
When the material of the workpiece and the tool, the finishing allowance, and the tool viewpoint are constant, the surface roughness depends on the cutting speed and feed rate. Generally, the lathe has a constant speed, and the cutting speed is different for different diameters. For example, CNC lathe machining has a constant linear speed cutting function. The same linear speed can be used when turning the end face and the outer circle of different diameters to ensure that the surface roughness value is small and common. When processing surfaces with different surface roughness, choose a low feed rate for a surface with a small roughness and a larger feed speed for a surface with a larger roughness. The variability is very good, which is difficult to achieve on a general lathe.
Straight lines or arcs can approximate blind plane curves. CNC lathe processing has an arc interpolation function, which can process various chaotic contour parts.
The use of CNC lathe machining requires the careful use of the operator, and it is necessary to rely on scientific management. A perfect management system and scientific production mode are effective methods to improve production power.
Effectively control and supervise the operations of the CNC lathe's related personnel so that the lathe's operation and operation can be controlled.
The training of CNC machining is a consistent long-term operation and a process of continuous improvement. Through the training of artisans, it is possible to compile more and more simplified numerical control processing techniques, simplify procedures, and shorten processing time. Skilled workers can improve operating skills, and management personnel can better understand the characteristics of CNC equipment, process control, and implement management based on modern production management concepts.
Improve the problem of work stoppage and unbalanced production capacity, increase the operating rate of CNC lathe processing, rationally arrange the production cycle, and rationally allocate the production tasks. Use the similarity of parts processing to classify the parts to be processed, make reasonable arrangements in process preparation, production planning, and scheduling, and improve the balance of equipment production capacity. Scientific production batches will greatly reduce the share of the adjustment time of the lathe and the share of the tooling preparation time and can increase the batch power.
Operate the lathe correctly according to the lathe operating rules;
Process parts according to process and procedure requirements;
Before CNC lathe processing, harmonize the dimensions of parts, tools, pressing plates, and other dimensions to avoid interference and bumps;
Improve the essence of skills and reduce non-processing time such as tool installation and alignment;
Ensure the maintenance of various auxiliary tools to ensure reliable accuracy.
The use of CNC lathe processing has become increasingly widespread, and how to "manage, use, and protect well" CNC lathes has become an important issue that needs to be resolved. CNC lathe processing is not a simple application of equipment but a series of applications with strong characteristics. As long as it is handled scientifically, fully understands the characteristics of CNC lathe processing, and harmoniously balances the production links, it can truly bring out its economic benefits.