Introduction
WXG630 is a multifunctional high-precision CNC turning-grinding combined machine tool, borrowed from the German high-precision heavy-duty CNC tilting machine manufacturing technology, suitable for steel companies to turn and grind ultra-high hardness and large-size roll rings, composite rolls, high-speed steel rolls, etc. Processing of various shaft and ring parts. The machine has good rigidity and is suitable for heavy cutting and pass grinding.
1. Features of machine tool structure
1. The bed is an overall 45-degree cabinet-type box structure, using high-strength rectangular guide rails (hard rails), HT300 high-standard castings, cast by Japanese companies. The tempering treatment is carried out according to the specification, and then the rough machining is carried out. After the rough machining, the secondary aging treatment is carried out, and then the ultra-high frequency quenching treatment is carried out to ensure the hardness of the guide rail, and finally the finishing machining is carried out. Stable accuracy and not easy to deform.
2. The main shaft is made of chromium-molybdenum alloy low-carbon steel with nitriding treatment. The spindle has the advantages of good overall performance, impact resistance, sufficient rigidity, and resistance to deformation. The front and rear ends of the main shaft adopt NN series double row cylindrical roller bearings, which have the advantages of high rigidity, large carrying capacity, small deformation after receiving the load, and slight adjustment of the clearance accuracy.
3. The spindle adopts the form of an independent spindle with high precision and high speed. The transmission method adopts AC servo motor, and high output torque is achieved at high and low speeds through a two-stage automatic high-torque gearbox. There is no gear transmission in the spindle box, which reduces cutting vibration during processing and greatly reduces noise problems.
4. The main shaft bearing is lubricated with grease and sealed grease to ensure that the bearing will not overheat when running at high speed.
5. The bed carriage adopts sliding friction guide rail, the guide rail plane is pasted with imported plastic leather, and the assembly process such as manual scraping is carried out. It has strong anti-seize ability and is not easy to crawl and run smoothly. The sliding plate has good stability and low friction resistance when sliding on the bed, which is suitable for heavy-load cutting of cemented carbide.
6. The carriage drive is driven by a high-precision imported ball screw, directly driven by a servo motor, with sufficient cutting torque.
7. Each sliding plate is equipped with an automatic lubrication system, with regular forced lubrication to ensure sufficient lubrication effect on each joint surface. When there is oil shortage, an automatic alarm is used to remind you to refuel, so as to ensure that each contact is not worn.
8. The spindle of the grinding head is made of high chromium-molybdenum alloy material. Through heat treatment, it has the advantages of high precision, high strength, and resistance to deformation. Imported high-precision bearings and high-pressure oil lubrication and cooling are used to improve accuracy retention and service life.
9. The tool post adopts a rotary 8-station hydraulic turret. The tool holder can be interchanged at various positions on the tool head. The tool can be changed at will, and the tool can be changed nearby. The tool change speed is fast, the action is stable, and the repeat positioning accuracy is high.
10. The hydraulic station is selected from Taiwan brand, with stable performance and guaranteed pressure, and it can work normally at an ambient temperature of 0-40°C. So as to ensure cutting stability.
11. The tailstock adopts built-in main shaft, the main shaft adopts NN series high-precision bearings, which has high rotation accuracy and rigidity. The movement of the tailstock sleeve adopts hydraulic transmission, and the hydraulic locking device is adopted between the tailstock and the bed, without manual locking operation. , Convenient and labor-saving.
12. Safety protection, the machine tool is integral protection, specific protection functions such as opening the door and turning off. The door is equipped with explosion-proof tempered glass, and the processing dynamics can be observed through the glass. A stainless steel tensile shield is installed between each carriage to ensure that waste chips and cutting fluid do not pollute the guide rail.
13 An automatic chip conveyor is installed in the front of the machine tool to separate water and dirt, and collect turning materials for recycling.
2. Technical specifications
|
Location |
Project |
Number of parameters |
|
Processing range |
Maximum rotation diameter of bed mm |
φ800 |
|
Maximum rotation diameter of bed saddle mm |
φ630 |
|
|
Maximum machining diameter mm |
φ630 |
|
|
Minimum machining diameter mm |
Φ280 |
|
|
Maximum clamping length in the center mm |
1530 |
|
|
travel of each axis |
C axis travel mm |
350 |
|
M-axis travel mm |
350 |
|
|
Z1 axis travel mm |
1530 |
|
|
Z2 axis travel mm |
1530 |
|
|
movement speed of each axis |
C axis moving speed mm/min |
10000 |
|
M-axis moving speed mm/min |
10000 |
|
|
Z-axis moving speed mm/min |
10000 |
|
|
Handwheel mm |
0.001/0.01/0.1 |
|
|
C, M, Z feed speed mm/min |
0~5000 |
|
|
C, M, Z manual feed speed mm/min |
0~1260 |
|
|
Spindle |
Spindle speed rpm |
2-750 |
|
Grinding head spindle |
Hydraulic three-jaw or expansion fixture |
|
|
Speed rpm |
2000 |
|
|
Knife holder |
Number of tool positions |
8 |
|
tool change time sec |
2 |
|
|
Tool installation size mm |
40×40 |
|
|
Motor |
Spindle motor KW |
18.5 |
|
C, M axis feed motor Nm |
27 |
|
|
Z-axis feed motor Nm |
27 |
|
|
Power |
Power consumption KVA |
60 |
|
Cooling system |
Coolant capacity L |
250 |
|
Motor type KW(1HP) |
1.2 |
|
|
Size |
Installation area mm (length×width) |
5200×2100 (approximately) |
|
Weight |
The whole machine |
About 10T |
