The basic production process of crossed roller bearing components
The specific production process of crossed roller bearings: raw materials-inner and outer ring processing, steel ball or roller processing, cage (stamping or solid) processing-crossed roller bearing assembly-crossed roller bearing finished product
In the bearing production process, the most critical are the following links:
①Forging link
The forging link is an important link to ensure the reliability and life of the cross roller bearing. After the raw material is forged, the cross roller bearing ring blank is formed. At the same time, the organization structure of the raw material becomes denser and the flow linearity becomes better, which can improve the reliability and service life of the cross roller bearing. In addition, the quality of the forging process will directly affect the utilization rate of raw materials, thereby affecting production costs.
②The heat treatment process
The heat treatment process is to subject the cross roller bearing ring after forging and turning to high temperature treatment, which directly affects the uniformity of carburization in the cross roller bearing ring, and can improve the wear resistance and hardness of the cross roller bearing. It is also an important link that affects the reliability and life of the cross roller bearing.
③Grinding process
After the heat treatment, the cross roller bearing ring needs to be ground, which is an important part of ensuring the accuracy of the cross roller bearing. After grinding, the production process of crossed roller bearing rings is basically completed.
The process flow of the inner and outer rings of crossed roller bearings: bar-forging-turning-heat treatment-grinding-super finishing-final inspection of parts-rust prevention storage
The main production equipment includes: cold rolling machine, automatic ball cross roller bearing internal grinder, quenching line, annealing furnace, press, CNC lathe, cross roller bearing grinder, internal groove grinder, external groove grinder, high precision horizontal Shaft round table surface grinder, CNC milling machine, centerless grinder, high-precision through-grinding centerless grinder, precision channel superfinishing machine, inner surface CNC grinder, CNC reciprocating double-end surface grinder, high temperature and high speed cross roller bearing testing machine, heat treatment production line and Quality inspection equipment, etc.
The basic production process of rolling cross roller bearings due to the different types, structural types, tolerance levels, technical requirements, materials and batches of rolling cross roller bearings, the basic production process is not completely the same.
The processing process of the main parts of various cross roller bearings:
①The processing process of the ferrule: The processing of the inner ring and the outer ring of the crossed roller bearing varies according to the raw material or the form of the blank. Among them, the process before turning can be divided into the following three types. The whole process is: Material or tube material (some bar materials need to be forged, annealed and normalized)-turning-heat treatment-grinding-lapping or polishing-final inspection of parts ----Anti-rust----Warehousing----(To be matched with the suit)
②The processing process of the steel ball. The processing of the steel ball also varies according to the state of the raw material. The process before the frustration or the photoball can be divided into the following three types. The process before the heat treatment can be divided into the following The two types mentioned above, the whole processing process is: cold punching of bar or wire (some bars need to be punched and annealed after cold punching) ---- frustration, rough grinding, soft grinding or smooth ball ---- heat treatment ----Hard grinding----fine grinding----fine grinding or grinding----final inspection grouping----rust prevention, packaging----in-warehouse (to be matched with a set).
③ Roller processing process The processing of the rollers varies according to the different raw materials. The process before heat treatment can be divided into the following two types. The entire process is: bar car processing or wire cold heading after stringing ring belt and Soft grinding-heat treatment-string of soft points-rough grinding outer diameter-rough grinding end surface-final grinding end surface-fine grinding outer diameter-final grinding outer diameter Diameter----final inspection group----rust prevention, packaging----warehousing (to be matched with suit).
④The processing process of the cage The processing process of the cage can be divided into the following two categories according to the design structure and raw materials:
⒈Sheet material→cutting→punching→pressing forming→shaping and finishing→pickling or shot peening or stringing→final inspection→rust prevention, packaging→warehousing (to be equipped with a set)
⒉The processing process of the solid cage: The processing of the solid cage varies according to the raw material or the roughness. Before turning, it can be divided into the following four types of blanks. The entire processing process is: bar material, tube material , Forgings, Castings----Inner Diameter, Outer Diameter, End Face, Chamfering----Drilling (or Pull Hole, Boring)----Pickling----Final Inspection----Anti-rust , Packaging ---- Warehousing <To be matched with a suit>.
The assembly process of rolling cross roller bearings
Rolling cross roller bearing parts such as inner ring, outer ring, rolling element and cage, etc., after passing the inspection, enter the assembly workshop for assembly. The process is as follows:
Parts demagnetization, cleaning→internal and external rolling <groove> channel size grouping classification→fitting→check clearance→riveting cage→final inspection→demagnetization, cleaning→rust prevention, packaging→into the finished product warehouse (packing, shipping ).
Luoyang Yujie Industry &Trade Co.Ltd located in Luoyang City, one of the main heavy industrial bases in China. We specialize in the production of bearing, nonstandard machinery parts, and CNC machine tools. If you have any interests, feel free to contact us and we warmly welcome customers and friends visit us
Luoyang Yujie Industry & Trade Co., Ltd.
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