A Processing Technology for Longitudinal Seam Groove of Stamped Welded Axle Housing

Abstract

The invention discloses a machining technique for a longitudinal seam bevel of a punching-welding axle housing. The machining technique comprises the following steps: conducting shot-blasting machining on half housings formed through punch first, then butting the two half housings, placing the two half housings on a welding fixture, clamping the ends of the half housings correspondingly, performing bottoming weld along the inner side of the butt seam from inside to edge not only in a position close to a reducer mounting hole but also at two ends of each half housing, so as to fixedly connect the two half housings to form the axle housing, and then cleaning weld roots; arranging a positioning clamp and a cutter on the machining center and compiling a numerically controlled machining program to arrange the axle housing on the positioning clamp for clamping and positioning, and performing one-time machining on the outer side of the butt seam with the cutter controlled by the numerically controlled machining program to form a bevel with an opening meeting the welding process requirements in angle and depth. According to the description of the scheme, the machining technique has the benefits that the technique is concise, the production efficiency is high, the product quality is reliable, and the size is highly ensured.

Description

technical field [0001] The punching and welding axle housing processing technology of the present invention particularly relates to a punching and welding axle housing longitudinal seam groove processing technology. Background technique [0002] The axle housing is an important component of the driving system of the automobile. It not only bears the load but also transmits the force. It also bears various bending forces and torsional forces caused by dynamic and static loads. Bearing capacity and resistance to deformation play a decisive role. At present, the processing technology of the longitudinal seam welding groove of the punched and welded axle housing mainly includes the following: [0003] 1. When the half shell is formed, the groove is directly pressed and formed. This method has higher requirements on the design and debugging of the forming mold and the axle housing unfolding material. The size of the pressed groove fluctuates widely, which is easy to cause gaps o...

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Problems solved by technology

[0003] 1. When the half shell is formed, the groove is directly pressed and formed. This method has high requirements for the design and debugging of the forming mold and the axle housing. Poor quality, and quality problems of weld leakage or impermeability during longitudinal seam welding;

[0004] 2. Use the flame cutting method to process the groove on the half shell. This method has a great influence on the structure of the axle housing material. After cutting, it needs to be normalized. The processing process is more complicated and the efficiency is low, and it has a greater impact on the welding of the subsequent axle housing. Big;

[0005] 3. Use a planer or a special machine tool for beveling to process the bevel. Because the current planer and special machine tool for beveling are mostly used to process the circular bevel of the round pipe or the straight bevel of the flat plate, this method cannot guarantee the slope at the R-arc transition of the axle housing. mouth size requirements

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