用途和特點
L31系列外榫槽拉床主要用于大型渦輪盤榫槽加工，機床采用液壓傳動，工作平穩，能無極調速。帶自動讓刀機構。具有自動循環、半自動循環、分段循環和手動操作四種工作狀態。手動狀態下對主溜板的工作和返回以及各單步動作均可進行單獨操作。
機床采用大跨度拉削力設計，適用拉削力從250KN到1000KN，拉削零件品種廣，根據不同的零件來選擇機床的液壓運行方式。機床采用PLC加控制模塊組成CNC控制方式。具有手動及自動的工作方式，操作方便。采用數控系統控制顯示、計數、報警、位移及故障診斷。機床的運行速度：在顯示屏上，輸入需要的速度數值，機床即可按給定的速度運行。機床的運行行程：在顯示屏上，輸入對應的行程位置，無需移動傳感器。
該機型采用全閉環數控分度方式，該分度方式既能進行連續分度且旋轉精度可進行反饋調節，分度盤內有夾緊裝置，能定位且可抵抗較高的傾覆力矩。船臺導軌采用弧形燕尾槽導軌，船臺采用全閉環位置控制使機床達到高精度。
Applications and Advantages
L31 turbine disc surface broaching machine is specially designed to machine the mortise in large-size turbine disc. This machine features hydraulic drive, stable performance, stepless speed adjustment and automatic cutter relieving unit. It has four work modes: automatic cycle, semi-automatic cycle, segmented cycle and manual operation. Under manual operation mode, each single action can be operated individually, such as the working and returning of main slide carriage.
The machine is designed with large span broaching forces from 250 - 3000 KN, which allow it broach a wide variety of parts as the operation modes of hydraulic system can be selected according to different parts. The CNC system consists of PLC and control module. The machine is convenient in operation as it can be operated automatically and manually. CNC system is employed to realize functions like control, display, count, alarm, displacement data reading and fault diagnosis. Machine work speed setting: input the value of speed on display screen and machine will work at the given speed. Machine stroke length setting: input the position coordinate of stroke length on display screen without moving sensors.
This type of machine adopts a full closed-loop CNC indexing method which can realize continuous indexing and make rotary precision be adjustable. The clamping device mounted in index plate can realize position and resist overturning moment. The machine bed adopts arc-shaped dovetail groove guide rail and full closed-loop position control, providing the machine with high precision.
L31系列外榫槽拉床主要技術參數Main Technical Specifications
機床型號Model | L3125 | 單位Unit |
工位數 Number of broaching station | 1 | / |
額定拉削力 Rated broaching force | 250-1000 | KN |
大行程 Max.stroke length | 2500 | mm |
拉刀長度范圍 Length range of broaching tool | 1500 | mm |
適應工件大直徑 Max. Diameter of workpiece | φ800-φ1200 | mm |
拉削速度 Work speed | 1-6 | m/min |
返回速度 Return speed | 7-12 | m/min |
機床凈重（約） Machine net weight (approx.) | 40000 | Kg |
機床占地空間（長×寬×高） Machine floor space(L×W×H) | 7600×3200×3100 | mm |
分度精度 Indexing precision | ±10 | ” |
工件榫槽偏角范圍 Deflection angle of mortise in disc | 50-90 | ° |
