Finish machining method for spiral bevel gear
A technology of bevel gears and spirals, which is applied in the field of gear machining, can solve the problems of high cost and low efficiency of grinding gears, and achieve the effects of ensuring processing quality, reducing manufacturing costs, and eliminating meshing marks
Inactive Publication Date: 2017-09-01
燕凌飞
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Problems solved by technology
[0004] With the rapid development of my country's industry, among various mechanical transmissions, the transmission efficiency of the spiral bevel gear is the highest, which has great economic benefits for various transmissions, especially high-power transmissions, and when the spiral bevel gear transmits the same torque The required transmission parts are the most space-saving. At the same time, the spiral bevel gear has the characteristics of stable transmission ratio, reliable operation and long service life. Therefore, the market demand for spiral bevel gears is increasing year by year, and the market's quality and accuracy requirements for spiral bevel gears are also constantly increasing. However, at present, high-precision spiral bevel gears are mainly processed by imported spiral bevel gear grinding machines. The cost of grinding gears is high and the efficiency is low.
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Embodiment Construction
[0022] The finishing method of this spiral bevel gear comprises the following steps:
[0023] a. Rough machining of the teeth of the spiral bevel gear blank: install the spiral bevel gear blank with machining allowance after turning on the spiral bevel gear milling machine for rough machining of the teeth, meshing coloring and control of the length and length of the meshing surface Meshing surface height dimension, tooth thickness reserve processing allowance;
[0024] b. Machining of the knife tentacles: After the rough machining of the teeth, continue to process the tooth root of the spiral bevel gear blank on the spiral bevel gear milling machine to let the knife tentacles reach the finished product size;
[0025] c. Heat treatment: carburizing and quenching heat treatment for the semi-finished spiral bevel gear;
[0026] d. Finishing of the mounting shaft or mounting hole: set the spiral bevel gear shaft on an external grinding machine to fine-grind the outer circle of th...
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Abstract
The invention discloses a finishing method for helical bevel gears, which includes rough machining of tooth parts, machining of blade contact angles, heat treatment, finishing machining of mounting shafts or mounting holes, milling of hard tooth surfaces, grinding of hard tooth surfaces, and inspection of finished products. and so on. The finishing method of the helical bevel gear adopts the milling and grinding method to process the helical bevel gear, so it has the advantages of improving the processing efficiency and reducing the manufacturing cost compared with the grinding method. The installation shaft part or installation hole part of the gear ring is directly processed to the finished size after heat treatment, so it provides a good benchmark for the subsequent hard tooth surface milling, thereby ensuring the processing quality of the spiral bevel gear; The tooth part of the semi-finished helical bevel gear processed by face milling is ground, so the surface accuracy of the tooth surface can be improved and the meshing marks can be eliminated. It is especially suitable for machining high-precision helical bevel gears.
Description
technical field [0001] The invention relates to a gear finishing method, in particular to a spiral bevel gear finishing method, and belongs to the technical field of gear machining. Background technique [0002] Gear transmission is the most widely used form of transmission in mechanical transmission. Because of its characteristics of accurate transmission ratio, high efficiency, compact structure, reliable operation and long life, it is widely used in modern machine tools and instruments. [0003] As the basic element of gear transmission, the gear is a mechanical element with teeth on the rim that can continuously mesh to transmit motion and power. Among them, the spur gear has the best structure and manufacturability and is the easiest to process. Any tooth shape processing method can be used. The wheel part is processed, and for the spiral bevel gear (that is, the spiral bevel gear), because its teeth are distributed on the surface of a cone, and the tooth shape graduall...
Claims
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IPC IPC(8): B23P15/14
CPCB23P15/14
Inventor 燕凌飞
Owner 燕凌飞