Machining Object
- Workpiece Type: External Tenon
- Material: Titanium Alloy, Heat-Resistant Steel, and Alloys
- Workpiece Dimensions & Requirements:
- Size: Φ350 mm × 210 mm
- Weight: 50 kg
- Surface Roughness: Ra ≤ 0.8 μm (minimum)
- 1.4 Workpiece Change Method: Manual
Technical Standards
- Compliance with ISO Standards and VDI/DGQ 3441 Precision Standards.
- All equipment components, instruments, and measurement units shall adhere to the International System of Units (SI).
Process Requirements
- Workpiece Fixturing: Positioning and clamping methods must align with the Buyer’s technical specifications and requirements.
Machine Operating Cycle
- Manual loading → Fixture clamping → Cycle start
- Rotary table locking → Y-axis moving table positions the rotary disc to broaching position
- Y-axis mechanical locking → Broaching operation
- Z-axis hydraulic release → Z-axis retracts to tool clearance position
- Brush chips → Tool returns → Clear chip path
- Release rotary table lock → Servo motor rotates the rotary disc/workpiece by one tooth
- Lock rotary table → Return Z-axis to broaching position
- Repeat cycle until full-circle machining is completed.
Machine Installation
Type: Floor-mounted installation,Operating Height: 1278 mm
Machine Structure and Function
Key Features
- Horizontal Structure: The machine adopts a horizontal layout, ensuring rational design, convenient operation, and maintenance.
- Cost-Effectiveness: Designed for affordability while maintaining performance.
- Fully Automated Cycle: Achieves fully automated processing of a single workpiece in one cycle.
Main Structure
- Machine Bed
- Column
- Main Sliding Plate
- Hydraulic System
- Automatic Chip Brushing System
- CNC Moving Tool Clearance Mechanism
- Combined Broaching Tool
- Lubrication System
- Cooling System
- Chip Conveyor
- Electrical Control Cabinet
Machine Bed
- The bed is a hexahedral welded steel structure with heat-treated hardened steel guide rails.
- The main hydraulic cylinder (horizontally mounted at the center of the bedplate’s tail end) drives the main sliding plate via its piston rod.
- The main sliding plate is equipped with a combined broaching tool, enabling reciprocating motion along the guide rails for broaching and return actions.
- The long stroke of the main sliding plate significantly improves broaching accuracy and stability.
- The machine body utilizes rational welded structures with multiple aging treatments to ensure dimensional stability and precision under high rigidity conditions.
- Precision Control: The integration of CNC systems and hardened steel components ensures precision.
Machine Configuration
| No. | ITEM | Brand | Remark | |
| 1.Mechanical part | ||||
| 1 | Bed, column | √ | ||
| 2 | Main slide | √ | ||
| 3 | CNC moving station and C-type station | √ | ||
| 4 | Main cylinder (effective stroke L=1600mm) | √ | ||
| 5 | Tool box | √ | ||
| 6 | Broach brush mechanism | NSK | √ | |
| 8 | Lead screw assembly | THK/I+F | √ | |
| 9 | Reduction gear | NEUGART | √ | |
| 10 | Servo motor | SIEMENS 1FT7 | √ | |
| 11 | bearing | NSK | √ | |
| 2.Hydraulic part | ||||
| 12 | Hydraulic system | √ | ||
| 13 | Variable piston pumps and valves | Japan Yuken | √ | |
| 14 | Hydraulic station (Tank assembly drawing) | √ | ||
| 15 | Pneumatic system | SMC | √ | |
| 3.Electrical part | ||||
| 16 | CNC control system | SIEMENS SINUMERIK ONE | √ | |
| 17 | Contactors, relays | Siemens/Schneider | √ | |
| 18 | Electrical control cabinet | √ | ||
| 19 | Travel switch | Euchner | √ | |
| 4.Other parts | ||||
| 20 | Cooling pump | √ | ||
| 21 | Automatic chip removal and filtration system | √ | 50μm | |
| 22 | Lubrication system | √ | ||
| 23 | Integral protection | √ | ||
| 5. Special accessories | ||||
| 24 | Broach tool | √ | Optional | |
| 25 | Tool box accessories (gaskets, tool presses) | √ | Optional | |
| 26 | Adjusting pad (1 set) | √ | ||
| 27 | Fragile seals (1 set) | √ | ||
Machine Parameter
| No. | Item | Unit | |
| 1 | Rated pulling force of X axis | kN | 250 |
| 2 | Rated stroke of X axis | mm | 1600 |
| 3 | X-axis working speed (stepless) | m/min | 1.5～12 |
| 4 | X-axis return speed (stepless) | m/min | 20 |
| 5 | Y-axis sliding left and right travel | mm | 175 |
| 6 | Y-axis working speed (stepless) | m/min | 3 |
| 7 | Y-axis return speed (stepless) | m/min | 3 |
| 8 | Z-axis slide up and down travel | mm | 720 |
| 9 | Z-axis working speed (stepless) | m/min | 3 |
| 10 | Z-axis return speed (stepless) | m/min | 3 |
| 11 | C axis rotation Angle | ° | 60 |
| 11 | Tool loading length | mm | 1200 |
| 12 | Height from ground to broach base | mm | 1063 |
| 13 | Axial piston pump for main drive | A3H180-FR14K | |
| 13-1 | displacement | mL/r | 180 |
| 13-2 | Maximum working pressure | MPa | 16 |
| 13-3 | Rated working pressure | MPa | 11 |
| 14 | Axial vane pump for auxiliary drive | SVPF-40-70 | |
| 14-1 | displacement | mL/r | 22 |
| 14-2 | Maximum working pressure | MPa | 6 |
| 14-3 | Rated working pressure | MPa | 4 |
| 15 | Main drive motor | Y225M-4-B35 | |
| 15-1 | Motor Power | kW | 45 |
| 15-2 | Motor speed | rpm | 1470 |
| 16 | Servo motor 1FT Series (Siemens) | Nm | 12 |
| 17 | Reduction ratio of planetary reducer | 1:5 | |
| 16 | Angle encoder: RCN5000 | μm | ±2.5 |
| 17 | Machine weight | Ton | 40 |
| 18 | Machine size (length × width × height) | mm | 7000×3500×2500mm |
Machine Accuracy
| Axis | Item | Positioning Accuracy | Repeat positioning accuracy | Remarks |
| C Axis | Rotation Angle | ≤0.015mm | ≤0.01mm | Full closed-loop control |
| Z Axis | Up-Down | ≤0.015mm | ≤0.01mm | |
| Y Axis | Left-Right | ≤0.015mm | ≤0.01mm |
Environmental Requirement
- Power Supply: 380 V ±10%, 50 Hz ±1 Hz, three-phase alternating current. Equip with leakage detection and power-off protection circuits.
- Ambient Temperature: 5–40 °C
- Relative Humidity: <85%
- Air Supply Pressure: ≤6 bar
- Machine Noise Level: ≤75 dB(A)
- Liquid Requirements:All fluids used in the machine must be non-toxic and PCB-free (polychlorinated biphenyls).
