A clamping and fixing device for processing heavy truck axle housings

Abstract

The invention discloses a clamping and fixing device for machining an axle shell of a heavy truck. The clamping and fixing device comprises a pedestal, an automatic hydraulic clamping mechanism, a hydraulic three-jaw chuck, an automatic hydraulic leveling mechanism, an auxiliary hydraulic support component, an auxiliary hydraulic clamping mechanism and a top type automatic hydraulic tailstock. The hydraulic three-jaw chuck is connected with a fourth shaft of a numerically-controlled machine tool, the fourth shaft of a numerically-controlled machine tool is connected with a rotary hydraulic oil tank, the automatic hydraulic clamping mechanism is installed on the top type automatic hydraulic tailstock, the automatic hydraulic leveling mechanism is used for helping the pipa panel of the axle shell to automatically level, the hydraulic three-jaw chuck is used for clamping the flange hole in one end of the axle shell, the top type automatic hydraulic tailstock is used for clamping the flange hole in the other end of the axle shell, the auxiliary hydraulic support component is used for supporting the axle shell, and the auxiliary hydraulic clamping mechanism and the automatic hydraulic clamping mechanism are used for clamping the surface of the axle shell. According to the clamping and fixing device for machining the axle shell of the heavy truck, the automation degree is high, the axle shell of the heavy truck is firmly and reliably clamped and positioned, and the machining efficiency and the machining quality of the axle shell are improved.

Description

technical field [0001] The invention relates to a clamping and fixing device on a numerical control machine tool, in particular to a clamping and fixing device for processing heavy truck axle housings. Background technique [0002] The heavy-duty truck axle is a key load-bearing and transmission component on the heavy-duty truck, which plays a decisive role in the load-bearing performance of the truck. The structure of the heavy truck axle housing is complex, and the processing content is relatively large and distributed on different processing surfaces. Figure 1-3 It is a schematic diagram of the structure of a common heavy truck axle housing, figure 1 Among them, A surface, F surface, G surface, H surface, J surface and K surface are processing surfaces, B holes, C holes, D holes, E holes, I holes are processing holes, D1, D2 and D3 holes are flanges Holes, where the A surface is also called the pipa surface, the F and H surfaces are also called the leaf spring surface,...

AI Technical Summary

Problems solved by technology

During the processing of the axle housing of heavy trucks, there are many procedures, which require multiple clamping and a variety of different machine tools, frequent clamping times, and high skill requirements for operators

Due to the poor automation of the equipment, it is impossible to realize the automatic processing of the continuous heavy truck axle housing, the processing efficiency is low, and the number of equipment used is large, which occupies a large area of ​​the factory building, which is a huge waste of the limited resources of the enterprise; in addition, Multiple clamping will inevitably lead to clamping errors, resulting in low precision of the processed axle housing, especially the shape and position tolerance requirements cannot be effectively improved

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