I. Preface
CNC lathe machining has been applied more and more in modern manufacturing industry, and it has brought out the advantages that ordinary lathe can not match. The CNC lathe processing mainly has the following features:
1.CNC CNC lathe processing drive chain is short, compared with the ordinary lathe spindle drive is no longer a motor belt gear deputy mechanism speed, but the use of horizontal and vertical feed, respectively, by the two servo motor drive movement is completed, no longer use the hanging wheel , Clutches and other traditional components, greatly reducing the transmission chain.
2. High rigidity, in order to match with the high precision of numerical control system, the CNC machining lathe has high rigidity so as to adapt to high-precision machining requirements.
3. Lightly drag, the tool holder (workbench) moves using ball screw, small friction, easy to move. Both ends of the bearing support bearings, the pressure angle is larger than the ordinary bearing, it will be equipped with a good selection at the factory; CNC CNC lathe lubrication part of the use of automatic lubrication oil mist, these measures make the CNC CNC lathe processing mobile light.
Second, CNC lathe processing characteristics
1. High degree of automation can reduce the operator's manual labor intensity. CNC lathe machining process is automatically completed according to the input program. The operator only needs to start the tool setting, loading and unloading the workpiece, and changing the tool. During the machining process, the operator mainly observes and supervises the operation of the lathe. However, due to the high technical content of CNC lathes, the brain work of operators has been correspondingly improved.
2.CNC CNC lathe processing parts have high precision and stable quality. CNC lathes have high positioning accuracy and repeatable positioning accuracy, and are easier to guarantee the consistency of a batch of parts. As long as the process design and procedures are correct and reasonable, combined with meticulous operation, the parts can be guaranteed high processing accuracy, and it is easy to CNC CNC lathe processing process to implement quality control.
3.CNC CNC lathe processing production efficiency. CNC CNC lathe machining is able to process multiple machining surfaces again in a single clamping process. Generally, only the first part is detected. Therefore, many intermediate processes such as scribe and dimension detection can be processed during normal lathe machining in provinces and regions, reducing auxiliary time. Moreover, due to the stable quality of parts manufactured by CNC lathes, it is convenient for follow-up processes and its overall efficiency is significantly improved.
4.CNC CNC lathe processing facilitates the development and modification of new products. CNC CNC lathe processing generally does not require many complicated process equipment. By compiling machining programs, parts with complex shapes and high precision can be machined. When the product is remodeled and the design is changed, the program can be changed without redesign. Tooling. Therefore, CNC CNC lathe processing can greatly shorten the product development cycle, providing a shortcut for research and development of new products, product improvement, and retrofitting.
5.CNC CNC lathe processing can be developed to more advanced manufacturing systems. CNC lathe machining and machining technology are the basis of computer-aided manufacturing.
6. The initial investment in CNC lathes is large. This is due to the high cost of CNC lathe machining equipment, the longer first-time preparation cycle, and higher maintenance costs.
7.CNC CNC lathes require high processing and maintenance. CNC lathes are technically intensive mechatronic integrated CNC CNC lathe processing products. Maintenance personnel need to understand both mechanical and microelectronics maintenance knowledge, and also have better maintenance equipment.
Third, suitable for CNC machined parts
1.CNC CNC lathe processing is most suitable for multi-variety small and medium batch parts. With the gradual decline in the cost of manufacturing CNC lathes, the processing of high-volume parts has now taken place at home and abroad. When processing very small batches and single pieces of production, it is optional to shorten the debugging time of the program and the preparation time of the tool.
2. Precision CNC CNC lathe machining parts. Because of the high rigidity and precision of CNC lathe machining, accurate tool setting and easy size compensation, it is possible to machine parts with high dimensional accuracy.
3.CNC CNC lathe processing parts with small surface roughness. In the case of a fixed workpiece and tool material, finishing allowance and tool angle, the surface roughness depends on the cutting speed and the feed rate. Ordinary lathe is a constant speed, different diameter cutting speed is different, such as CNC lathe machining with constant line speed cutting function, car end surface, different diameter outer circle can use the same linear speed, to ensure that the surface roughness value is small and consistent. In the processing of surfaces with different surface roughness, the surface with small roughness adopts a small feed rate, the surface with large roughness adopts a larger feed rate, and the variability is very good, which is difficult to achieve in ordinary lathes.
4. Parts with complex contour shapes. Arbitrary plane curves can be approximated by straight lines or arcs. CNC lathe machining has circular interpolation functions and can process various complicated contour parts.
Fourth, CNC lathe processing management use
The use of CNC lathe machining requires both the meticulous use of operators and scientific management. A sound management system and scientific production model are effective means to increase production efficiency.
1. Establish and improve a sound management system, effectively control and supervise the work of CNC lathe-related personnel, so that the entire operation of the lathe is controlled.
2. Strengthen the training of technical personnel and technical worker management personnel. CNC machining training is a long-term work and it is a process of continuous improvement. By training the craftsmen, more simplified NC machining processes can be prepared, the procedures can be simplified, and the processing time can be shortened; the skilled workers can improve the operation skills; the management personnel can better understand the characteristics of numerical control equipment, process control, and implement management with modern production management concepts.
3. Science organization production. Improve shutdown and waiting for materials, unbalance the production capacity, increase the operating rate of CNC CNC lathe processing, reasonably arrange production beats, and reasonably distribute production tasks. Using the similarity of parts processing, the parts to be processed are categorized so as to be reasonably arranged in the process preparation, production planning and scheduling, and to increase the balance of equipment production capacity. Scientific production batches will greatly reduce the proportion of lathe adjustment time and tool preparation time, and can increase batch efficiency.
4. In order to exert the value of CNC lathe machining, operators must correctly master the principles of CNC lathe operation. Correct operation of lathes according to lathe operating procedures; processing of parts according to process and procedural requirements; coordination of parts, tools, platens, etc. before CNC CNC lathes to avoid interference and collisions; improve technical quality, reduce non-machining time such as loading and correcting; Maintenance and various auxiliary tools ensure accuracy and reliability.
V. Conclusion
The application of CNC lathe machining has become increasingly widespread. How to “manage, use, and maintain” the CNC lathe has become an important issue to be solved. The use of CNC lathe machining is not a simple use of equipment. It is an application project with strong sequential properties. Only scientific management, full understanding of the characteristics of CNC lathe processing, coordination of the balance of the various production processes in order to truly play its economic benefits.
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