液压阀外壳

加工要求

• 波动的铸铁加工余情况
• 超强中断的切削口
• 镗孔时避免环圈的形成，并确保从外壳中安全排出切屑
• 避免在镗孔流程中控制刃口上出现破裂现象
• 对形状和位置公差的要求非常高
• 珩磨之前的恒定加工余量
• 在切削加工方案中考虑组件差异和有限的刀具储存器位置

钻削加工

滑块钻孔

Spool bore

The relative movement of the spool along the control edges controls the flow direction of the fluid.

Compensator bore

Compensator bore

Despite different loads on agricultural and construction machinery, the volume flow for the lifting and lowering speed on an excavator shovel, for example, must remain constant. If a low load is present, the spring-preloaded pressure compensator releases a smaller cross section, to keep the volume flow constant. With high loads, a larger cross-section is released. The working speed of the hydraulic cylinder connected to the excavator shovel thus always remains the same.

Additional bore machining

1__Tie rod hole 2__O-ring bore 3__Oil bore 4__Thread bore 5__Port hole 6__Check valve hole

• 
  1 / 6

  Tie rod hole

  Bore for tie rod, which keep the individual valve blocks together.
• 
  2 / 6

  O-ring bore

  Countersink for O-rings for sealing the plane surfaces between
  individual modules.
• 
  3 / 6

  Oil bore

  Oil channel for distributing the oil in the part.
• 
  4 / 6

  Thread bore

  Bores for fastening attachments.
• 
  5 / 6

  Port hole

  Bore for connecting the individual consumers to the valve block.
• 
  6 / 6

  Check valve hole

  Check valves for blocking a volume flow.

• 1__Tie rod hole 1__Tie rod hole
• 2__O-ring bore 2__O-ring bore
• 3__Oil bore 3__Oil bore
• 4__Thread bore 4__Thread bore
• 5__Port hole 5__Port hole
• 6__Check valve hole 6__Check valve hole

Application solutions

1 – Small and medium series with fixed tools

お客様の初期の加工状況

バルブケース EN-GJS-400-15 - スプール穴

• 個別受注・小ロット・中ロット
• ツール調整機能なし
• ツールのリードタイムが短い
• 高い機械稼働率
• 安定した拡張ホーニングが可能
• 複数部品のバリエーションに適応するツールコンセプト

詳細

2 – Large series with solid and adjustable tools

Initial situation at the customer

Valve housing EN-GJS-400-15 – spool bore and compensator bore

• Large-scale series
• Tool setting desired
• High machine hourly rates
• High costs for subsequent single pass honing

Details

3 – Petits lots – Diminution des changements d'outils grâce aux outils combinés

お客様の初期の加工状況

バルブケース FCD-300 - スプール穴

• 少量生産
• ツール調整機能あり
• 過度なツール交換
• 高い機械稼働率
• 次工程のワンパスホーニングによる高い費用の発生

詳細

4 – マシニングセンターでの柔軟なホーニング

お客様の初期の加工状況

バルブケース FCD-400-15 - 流量制御穴 / ホーニング

• 付帯費用の削減要求
• 既存のマシニングセンタをTOOLTRONICに変換
• プロトタイプから中小規模生産までのホーニング
• 別個マシンでのホーニング工程を削減する必要性

詳細

5 – ツールマネジメント

Initial situation at the customer

Valve housing EN-GJS-400-15 – complete machining

• High inventories
• Processes in the tool-setting area not optimal, and incomplete data quality
• Cost transparency is not sufficient
• High fluctuation due to general lack of skilled workers
• Problems with tool breakage
• High tool costs

Details

Tool solutions