Foshan Tongtaisheng CNC machining manufacturer explained: Factors affecting the processing of thin-walled parts
2021-10-11
Foshan Tongtaisheng CNC machining manufacturer explained: the determination of CNC lathe machining allowance
- Categories:CNC machining encyclopedia
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- Time of issue:2021-10-08
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(Summary description)CNC lathes and turning centers are a kind of high-precision and high-efficiency automatic breakdown; equipped with multi-station turret or power turret, the machine tool has a wide range of processing performance, which can process straight cylinders, oblique cylinders, arcs and Complicated workpieces such as various threads, grooves and worms have various compensation functions such as linear interpolation and circular interpolation, and have played a good feed effect in the mass production of complex parts.
Foshan Tongtaisheng CNC machining manufacturer explained: the determination of CNC lathe machining allowance
(Summary description)CNC lathes and turning centers are a kind of high-precision and high-efficiency automatic breakdown; equipped with multi-station turret or power turret, the machine tool has a wide range of processing performance, which can process straight cylinders, oblique cylinders, arcs and Complicated workpieces such as various threads, grooves and worms have various compensation functions such as linear interpolation and circular interpolation, and have played a good feed effect in the mass production of complex parts.
- Categories:CNC machining encyclopedia
- Author:
- Origin:
- Time of issue:2021-10-08
- Views:0
Information
What is a CNC lathe
CNC lathes and turning centers are a kind of high-precision and high-efficiency automatic breakdown; equipped with multi-station turret or power turret, the machine tool has a wide range of processing performance, which can process straight cylinders, oblique cylinders, arcs and Complicated workpieces such as various threads, grooves and worms have various compensation functions such as linear interpolation and circular interpolation, and have played a good feed effect in the mass production of complex parts.
Classification of machine tools
Horizontal CNC lathes can be divided into economic CNC lathes, ordinary CNC lathes and turning machining centers according to their functions;
(1) Economical CNC lathe
A simple CNC lathe formed by reforming the turning feed system of an ordinary lathe with a stepping motor and a single-chip microcomputer; the cost is low, the degree of automation and functions are relatively poor, and the turning accuracy is not high, which is suitable for low-requirement rotation Turning processing of similar parts.
(2) Ordinary CNC lathe
According to the turning processing requirements, the CNC lathe is specially designed in structure and equipped with a general CNC system. The CNC system has strong functions, and the degree of automation and processing accuracy is not high. It is suitable for turning processing of general rotary parts.
(3) Turning machining center
On the basis of ordinary CNC lathes, a C axis and power head are added. More advanced machine tools also have a tool magazine that can control three coordinate axes X, Z and C. The linkage control axis can be (X, Z), ( X, Z) or (Z, C); due to the addition of the C axis and milling power head, the machining function of this CNC lathe is greatly enhanced. In addition to general turning, it can also perform radial and axial milling and surface milling , Drilling and other processing of the hole whose center line is not at the center of rotation of the part and the radial hole.
Determination of Finish Machining Allowance on CNC Lathe
(1) The concept of finishing allowance
Finishing allowance refers to the thickness of the metal layer cut off during the finishing process; under normal circumstances, the finishing allowance is completed by finishing one cut;
(2) Influencing factors of finishing allowance
The size of the finishing allowance has a direct impact on the final quality of the parts; the finishing allowance selected by CNC cannot be too large or too small. If the allowance is too large, it will increase the cutting force and the generation of cutting heat, which will affect the machining accuracy and Processing surface quality; if the margin is too small, the various errors and surface defects left by the previous process cannot be eliminated. The clamping error of this process is likely to cause waste.
(3) Determination of finishing allowance
①Experience estimation method: This method is to estimate the finishing allowance based on the practical experience of the craftsman; in order to avoid the production of waste due to insufficient allowance, the allowance is generally too large and only used for single-piece small batch production.
②Look-up table revision method
The data about finishing allowance accumulated in factory production practice and experimental research is made into a table, and the programming manual is compiled. When the CNC machine tool determines the finishing allowance, calculation formulas and certain test data need to be used to affect the finishing allowance Comprehensive analysis and calculation of various factors to determine its finishing allowance.
Picture: Product Picture of Precision Hardware Processing
As a modern manufacturer of precision machinery parts, Foshan Tongtaisheng Precision Electromechanical Technology Co., Ltd. takes CNC processing as its core technology, has physical factories, testing equipment, and integrates rapid prototyping, molds, post-processing and other supporting manufacturing resources to provide customers Provide rapid proofing, small and medium batch production and trial assembly, truly worry-saving one-stop service; the company has Taiwan imported computer gongs, milling machines, lathes, grinders and other precision machining equipment, as well as non-standard production experience Technical team, rich production experience. Consultation telephone: 13826973330, website: www.fstpe.com.
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