Guangdong JSWAY CNC Machine Tool Co., Ltd. since 2004.
An Introduction of CNC Milling Machines
Milling machines are machine tools which are used to machine solid materials. There are two basic types of these machines and they are vertical milling machine and horizontal milling machine. The two different types are referred to horizontal and vertical because of the orientation of the main spindle. Milling machines can vary in size from small bench mounted machines to much larger room sized machines. Milling machines operate by moving the workpiece around and against the cutter, and the sides of the cutter are used to cut material as well as the tip. The workpiece and cutter are very precisely controlled to thousandths of an inch ( 0.001 ). Milling machines may be mechanically automated, manually operated or computer numerically controlled ( CNC ). The manual operation of some types of precision engineering machine such as the lathe or milling machine are very often controlled by computer or numerically controlled.
Numerical control or NC, or computer numerical control CNC refers to the automation of machine tools which are operated by programmed commands that are encoded on a storage medium.
Milling is a machining operation in which a workpiece is given the desired shape by the action of a rotating cutter, while the workpiece performs linear movements. In its simplest form the milling cutter is a circular disc whose rim is provided with specially shaped teeth (cutting edges). The cutters are of many different kinds and shapes. The work is fed against the teeth of the cutter, while the feed motion is longitudinal, transverse or vertical, depending on the type of milling machine and the nature of the work. Milling machines are of the horizontal or vertical type.
Today many CNC milling machines are computer controlled vertical mills, and have the ability to move the spindle vertically along the Z axis. In CNC milling and turning, end to end component design is automated using CAD/CAM programs. The program is put into the lathe or milling machine and the machine is then ready for production. Some machined components will generally require a number of different tooling applications such as drilling, reaming and tapping etc, and most modern machines will combine tools within a single cell. This cell will move or rotate to apply the required tooling application, and this will also be controlled by the CNC system. With todays modern and complex machines, the machined part or workpiece can be moved from machine to machine automatically with the use of computer controlled robots, or human intervention, but in either case the steps needed to produce any part is highly automated and the finished part will closely match the CAD design.
CNC machines were first built in the 1940s and were programmed by using paper tape with holes punched into it at specific points. These early systems were soon overtaken with the augmentation of analogue and digital computers. There is a range of CNC systems that can be fitted to previously manually operate machine tools, and these systems provide a selection of features which can significantly improve the productivity of the machine and the quality of the work that is produced.
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Methods to Reduce the Impact of Force-Induced Deformation
To minimize the impact of force-induced deformation on the stability of Swiss-type lathes and enhance machining accuracy and stability, the following measures can be taken:
JSWAY Company’s Professional Team Performance
As one of the exhibitors, JSWAY Company showcased the excellence of its professional team at this Jakarta Industrial Week. The team members of JSWAY Company, with their enthusiasm and professional knowledge, actively engaged in exchanges with customers from all over the world, providing them with detailed product introductions and technical support. They not only demonstrated JSWAY Company's advanced technology and high-quality products in the fields of CNC machines, milling and turning centers, and Swiss-type lathes, but also left a deep impression on customers with their enthusiastic service.
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Compare manual mills and CNC machine advantages, costs, precision, and applications to choose the right technology for prototyping, job shops, or production.
Improving Precision and Service Life through Fixture Adjustment and Maintenance
Fixture Adjustment Methods:
Fixture Maintenance Methods:
By properly adjusting and regularly maintaining fixtures, the machining accuracy and service life of Swiss-type lathes can be effectively improved, ensuring efficient and stable production processes.
The stress in a machine tool bed can influence machining quality in several ways:
Machining Accuracy
Deformation and Displacement: Stress in the bed can cause structural deformation, which in turn affects the positional accuracy of various machine components. For example, insufficient rigidity at the tailstock support of the bed may lead to positional deviations of the tailstock center, with maximum displacement deformation reaching up to 0.13465 mm. Such deformation directly impacts the relative positioning between the tool and the workpiece, resulting in machining errors.
Differences in Machining Effects with Different Power Head Configurations
Single Spindle vs. Dual Spindle: Single-spindle Swiss-type lathes usually come with one side power head and are suitable for machining relatively simple parts. In contrast, dual-spindle lathes can be equipped with more power heads and can even perform simultaneous machining on the main and secondary spindles, significantly improving machining efficiency and complexity.
Side Tool Post vs. Horizontal Tool Post: Power heads with a side tool post structure perform better when machining difficult-to-chip materials, while those with a horizontal tool post structure are more efficient for machining easy-to-cut materials.
In summary, the power heads of Swiss-type lathes offer significant advantages in machining accuracy, efficiency, complexity, and adaptability. Different power head configurations can be selected based on specific machining requirements to achieve the best machining results.