Machining method for gear shaft in angle steering gear assembly

Abstract

The invention discloses a machining method for a gear shaft in an angle steering gear assembly. The machining method comprises the following machining steps: (1) selecting a 20CrMnTi round material; (2) turning an end face A and drilling a central hole in the end face A; (3) rough-turning outer circles at positions N, C, D, E, F, G and B and controlling the length; (4) milling a spline at the position G; (5) machining R at the position M; (6) finish-turning the outer circles at the positions N, C, D, E and F; (7) turning the other end face and a drilling a central hole; (8) milling teeth at the position N; (9) rough-turning and finish-turning the position B of a small outer circle; (10) milling the outer circles at the positions C, E and B; (11) carburizing and quenching at the position N, and performing high-frequency quenching at the outer circles G, C, E and B; (12) inspecting and warehousing. According to the machining method, the spiral direction of the gear shaft is consistent with the rotation direction of input power, the product quality and strength are improved, and the period for replacing the assembly is prolonged for automobile users. The anti-fatigue and torsional strength requirements are met. The cost of the user is greatly reduced.

Description

technical field [0001] The invention relates to an angle steering assembly, in particular to a processing method for a gear shaft in the angle steering assembly. Background technique [0002] According to relevant literature retrieval, at present, most of the angle steering gears used in large passenger cars in my country are imported, and the price of imported angle steering gears is relatively expensive. It will seriously affect the production of cars. However, in the actual use of the imported angle steering gear, oil leakage often occurs, especially when the torque is large, the gear shaft will also have hidden dangers such as loosening and detachment of the snap ring. However, the domestically produced automobile angle steering gear not only has oil leakage, or difficulty in refueling, but also has a separate design for the bevel gear and the shaft of the connecting gear shaft, and the tooth shape is a straight tooth, which is often broken and has a low service life. c...

AI Technical Summary

Problems solved by technology

[0002] According to relevant literature retrieval, at present, most of the angle steering gears used in large passenger cars in my country are imported, and the price of imported angle steering gears is relatively expensive. will seriously affect the production of automobiles

However, in the actual use of the imported angle steering gear, oil leakage often occurs, especially in the case of high torque, and the gear shaft will also have hidden dangers such as loose snap rings and cracks.

However, the domestically produced automobile angle steering gear not only has oil leakage, or difficulty in refueling, but also has a separate design for the bevel gear and the shaft of the connecting gear shaft, and the tooth shape is a straight tooth, which is often broken and has a low service life. cost

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