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我厂生产的起重机采用CB-P52/66-HF型双联高压齿轮油泵,其壳体的孔径精度和光洁度要求较高(见图1)。两壳体和前盖原在T4163型坐标镗床上加工,生产效率低,改用自制的半自动镗油泵壳体专机后,每组件仅用2小时便可完成。该机性能可靠,质量稳定,制造费低,经济效益显著。图2为该机结构简图。
The CB-P52/66-HF dual high-pressure gear oil pump is used for the cranes produced by our factory. The aperture precision and finish of the shell are required to be relatively high (see Figure 1). The two shells and the front cover were originally machined on the T4163 coordinate boring machine, and the production efficiency was low. After using the self-made semi-automatic helium pump shell special machine, each component can be completed in only 2 hours. The machine has reliable performance, stable quality, low manufacturing costs and significant economic benefits. Figure 2 is a schematic diagram of the aircraft structure.