Automatic crankshaft quenching machine

1. Composition:

1.1. Transistor solid-state intermediate frequency induction heating power supply

1.2. IF compensation cabinet and multi-channel IF switching system

1.3. Multiple thin crankshaft quenching transformers and inductors

1.4. Automatic loading and unloading mechanism or manual auxiliary feeding mechanism

1.5, balance and suspension device

1.6. Crankshaft clamping and deformation-limiting mechanism

1.7. Translation and positioning mechanism

1.8 Rotation and positioning mechanism

1.9. Quenching water tank and quenching liquid circulation system

1.10, cooling water tank and cooling water circulation system

1.11 Industrial refrigerators

1.12, electrical control system.

2. Advanced technology adopted by crankshaft quenching machine tools

2.1. Power pulse distribution technology: it can ensure that the hardened layer of any journal is uniform in the circumferential direction;

2.2. Tailstock free floating technology: It can ensure the free extension of the crankshaft during heating and the free shortening of the cooling, and reduce the quenching deformation of the crankshaft;

2.3. Thin quenching transformer technology: 5-13 thin quenching transformers with a capacity of 500Kva and a thickness of 55-75mm can be hung on the quenching machine at the same time;

2.4 Independent suspension technology: each quenching transformer adopts independent suspension, and the distance between any adjacent transformers is adjusted by manual screw to adapt to the quenching of crankshafts with different opening sizes to ensure the flexibility of the machine tool;

2.5. Suspension balance technology: The transformer suspension adopts mechanical adjustable balance to ensure that the induction coil can track well, and the pressure on the crankshaft is constant and minimum at any angle, reducing the crankshaft quenching deformation;

2.6 Monitoring of machine tool working status and process parameters: The large-screen LCD touch screen is used to monitor and display the working status of the machine tool, heating and quenching cooling process parameters (including voltage, current, frequency, time, pressure, flow, temperature, etc.);

2.7. More than 80% of the parts and components of the machine tool and power supply adopt imported brand-name products;

2.8. The machine tool adopts a unique building block type, integrated structure, simple installation, small footprint, and convenient maintenance;

3. Technical characteristics of the machine tool

3.1. It can perform fillet quenching and shaft diameter quenching for various crankshafts, with automatic/manual cycle operation mode;

3.2. The series of equipment can realize the feeding of 1 to 5 inductors at a time, and the heating and spray cooling of 1 to 3 inductors can be achieved at the same time. The heating and cooling process parameters of each inductor can be adjusted independently;

3.3. The loading, unloading, positioning, clamping, and other actions of the machine tool and the processing process are automatically controlled by the machine tool;

3.4. The machine tool adopts a whole integrated structure, fully enclosed protection, beautiful appearance, and convenient operation, maintenance and repair of equipment;

3.5. The machine tool adopts an integral welded bed, which has good rigidity, stability and vibration resistance;

3.6. The machine tool is equipped with maintenance and adjustment channels, which is convenient to adjust and replace the quenching fixture and inductor, and it is convenient to clean the quenching tank and replace the quenching medium;

3.7. The control system adopts CNC system control; programming and operation are simple, and the machine tool has strong versatility;

3.8. The head and tailstock adopt pneumatic self-centering power chuck, which can automatically clamp the workpiece, and the tailstock can automatically move on the guide rail to adapt to different workpiece lengths;

3.9. Crankshaft positioning method: centering of the head and tailstock, and left and right positions of the shaft end;

3.10. The bed head spindle rotation drive adopts AC servo drive, which has the function of positioning at any rotation angle;

3.11. The carriage movement (left and right) is driven by a servo motor ball screw and CNC automatic control. The transmission mechanism has good positioning accuracy, wear resistance, rigidity, low-speed motion stability and vibration resistance;

3.12 The lift of the sensor is driven by a special self-locking cylinder, and is equipped with a buffer device, which has the function of automatic protection against power failure and gas loss;

3.13. The water circuit, circuit and gas circuit connection of the thin crankshaft special quenching transformer and the inductor adopts quick-change device; each quenching transformer adopts independent suspension, and the spacing between any adjacent transformers is adjusted by manual screw to adapt to different cylinder spacing The size of the crankshaft is quenched to ensure the flexibility of the machine tool; the transformer suspension is mechanically adjustable and balanced to ensure that the inductor has good floating tracking characteristics. The transformer inductor has the smallest pressure on the crankshaft and keeps the pressure constant at any angle, which makes the crankshaft quenched and deformed Control within the minimum range;

3.14. Adopt IGBT transistor power supply;

3.15. The cooling water circulation system adopts demineralized water circulation cooling, which can provide low-pressure cooling of the intermediate frequency power supply. The load system includes the quenching transformer and the high-pressure cooling of the induction coil. Each cooling branch is equipped with temperature, pressure, and flow monitoring and protection devices;

3.16. The quenching liquid circulation system adopts PAG water-soluble medium, and the quenching branch is equipped with a piston solenoid valve, and is equipped with temperature, pressure, and flow monitoring and protection devices;