For the processing procedures of bearing sleeves, we have two common methods: one is a centralized procedure, and the other is a decentralized procedure. In order to better process the bearing rings, according to our understanding, analyze the relevant bearing rings. Some characteristics of these two process methods are hoped to be helpful to everyone in the processing of bearing rings.
1. Concentrated process of bearing ring processing
The concentrated process of bearing ring can complete the turning processing of one or several rings with only one process.
The characteristics of the centralized process:
(1) Most or all of the turning processes can be completed in one clamping cycle, which reduces the positioning error of the ferrule and the auxiliary time of the clamping and positioning, improves the position and dimensional accuracy between the surfaces of the ferrule, and improves the productivity. For batch production of small and medium-sized ferrules, 2~3 pieces of ferrules can be turned on a multi-axis automatic lathe at a time.
(2) The process flow is shortened, the intermediate storage, loading and unloading, and transportation links are reduced, which is convenient for production management; and the amount of machine tools and tools is reduced.
(3) It is conducive to the realization of automation and mass production, shortens the production cycle, and reduces the production cost.
But at the same time, there are higher requirements for process equipment and workpiece blanks such as lathes, cutting tools, fixtures and auxiliary tools. For example, it requires a small amount of blanks and high precision in size, and strict requirements on surface quality such as metallographic structure and hardness; requires greater power, rigidity, and higher processing accuracy and automation for lathes, often using multiple tools , Multi-step, multi-station multi-axis semi-automatic machines and automatic machine tools. Generally, multi-axis automatic machine tools should be used for mass production, and multi-tool semi-automatic lathes should be used for medium and small batches and variable processing models; process equipment There are many types and quantities, strong specificity, troublesome replacement models, difficult and time-consuming adjustments, high technical requirements of workers, and reasonable production organization management.
Second, the dispersion process of bearing ring processing
The dispersing process of the bearing ring needs to be divided into several clampings to complete-the turning of a ring.
The characteristics of the dispersion process:
(1) Suitable for small batch and single-piece production of SKF bearing seats for medium and large motors. Easy to organize production, simple and economical lathes and jigs, easy to change bearing models, and low cost. If a single machine is connected into an automatic line, it is also suitable for mass production.
(2) It can be processed by a high-efficiency special lathe with good rigidity and high power, which is convenient to select the best process parameters, and can be cut with high-speed and large-cutting, which improves the processing efficiency.
(3) For a single machine, it can realize automatic loading and unloading, automatic cutting and automatic measurement. The machine is easy to operate and does not require high skills for workers.
(4) The requirements for the ferrule blanks are not high, and the blanks of various forms, sizes, new and old code sizes of domestic bearings and imported bearings (161) can be adapted to blanks with different batches of precision.
However, there are many “dispersed processes” and long process routes, processing time and long time between processes such as storage, transportation, inspection, loading and unloading. Each ferrule requires multiple machines, multiple processes, multiple clamping and positioning, and multiple operations. Check that the positioning error is large and the machining accuracy is poor. Increase the consumption of people, property, material and energy.
Post time: Aug-16-2021