The MAPAL tool programme for series production of scroll compressors.

Electrified auxiliary units

As a result of electrification in the automotive industry, more and more drive tasks
of the internal combustion engines are being performed by electrified components.
By electrifying the auxiliary units, these components can be used as required and
depending on the load, and thus contribute to reduced energy consumption. They
stand out thanks to their high reliability and low noise emissions as well as excellent
energy efficiency.

Auxiliary unit scroll compressor

电气化辅助机组的一个例子是 涡旋压缩机,它在热管理中用作电动制冷剂压缩机。作为示例,展示了用于一个电动车辆的涡旋压缩机3个铝零件的具体加工案例。
Sectional view of scroll compressor

特征 

  • 轨道和固定涡旋的核心部件 
  • 几何尺寸和承接件的精度至关重要 
  • 螺旋线相互之间精确定位 

切削加工要求 

  • 螺旋槽形状精度高 (≤ 20 μm) 
  • 侧面相对底面的垂直度高 (≤ 20 μm) 
  • 平行度和平面度 ≤ 10 μm 
  • 表面粗糙度(Rz)处于一位数-范围内 
  • 机床与刀具之间完美配合 

涡旋压缩机辅助机组的加工步骤:

  • The combination tool finishes the recesses for the sealing grooves.

    用于密封元件的凹槽

    • 这类凹槽的粗加工和精加工都通过采用两刃PCD镗孔刀完成。 
    • 此外,组合刀具还可以实现接触孔径的加工 
    • 切面划分有助于减小切削力并且确保形成最佳的切屑形状 

  • The boring tool with two stages machines the bearing bore of the scroll compressor.

    精确的轴承孔

    • 应用三刃PCD铣刀,通过循环铣削进行预加工 
    • 使用双刃-PCD镗刀进行精加工并且应用两个台阶和切口分割,以减小切削力 

  • Machining of the high-precision spiral shapes with a milling cutter made of solid carbide.

    高精度螺旋形状

    • 使用整体硬质合金铣刀进行预加工和精加工 
    • 极其锋利的切削刃确保了高的尺寸精度 


其他电气化部件