CNC Machining of Gear

Gear CNC machining machine tool refers to a CNC machine tool that specializes in processing gears. It is characterized by programmable control and can process various gears such as helical gears and spur gears.

1. The overall structure is made of high-grade cast iron, and the internal stress is removed after heat treatment to ensure excellent rigidity and long-lasting precision.

2. The base adopts A-shaped rib structure layout to improve the vibration absorption effect, and the overall casting adopts the box design to achieve high bending rigidity, eliminating redundant design and using digital design to ensure rigidity in the design stage.

3. The lubricating points of the slide rail are evenly distributed and arranged, and the volumetric oil distributor is adopted, and each oiling point is equal to ensure that the sliding surface is lubricated evenly.

4. The three-axis adopts C3 grade precision screw, cooperates with nut preload and screw pretension, eliminates backlash and temperature rise elongation in advance, and realizes stable positioning and repeatable accuracy.

5. The three-axis screw is equipped with P4 precision bearings to provide excellent axial rigidity.

6. The main shaft is equipped with high-rigidity P4-level bevel ball bearings, which are precisely ground and assembled to ensure excellent dynamic rotation accuracy and life. High-speed silent toothed belt is adopted.

7. The counterweight system is equipped with guide rails to make the spindle head more stable and fast when cutting or moving up and down quickly, and suppress vibration to ensure accuracy.

8. The structure is designed to separate oil and water, and the slideway oil is recovered in a centralized manner, which meets the requirements of environmental protection.

This machine tool has a hydraulic balance device, which can process workpieces such as cylindrical, spur gear, helical gear and turbine. It can be processed by down milling or up milling, with high production efficiency and easy operation. Maximum cutting modulus: 5mm for steel, 6mm for cast iron; Maximum diameter for processing spur gears: 350mm with outer support, 600mm without external support; Maximum diameter for processing cylindrical helical gears: 370mm when the helix angle is 30 degrees, 370mm when the helix angle is At 45 degrees, 250mm; the maximum vertical stroke length of the hob is 260mm, the maximum hobbing length is 240mm, the distance between the hob spindle and the centerline of the worktable: the maximum is 320mm, the minimum is 25mm; the distance between the worktable and the centerline of the hob spindle The minimum distance is 170mm, the diameter of the hob interchangeable spindle is 22, 27, 32mm; the maximum diameter of the hob is 120mm, the diameter of the worktable hole is 60mm, the diameter of the worktable spindle is 30mm, the hob spindle speed: 8 grades, 50-275r/min; The vertical feed rate of the hob per workpiece is 0.24-4.25mm/r; the main motor is 3kw, 1430 rpm, and the cooling motor is 90w; the weight of the machine tool: 2400kg; the overall size: 1825*935*1730mm.

1. The machine tool adopts German Siemens (SIEMENS) 828D numerical control system to realize four-axis three-linkage, and the main drive of the cutter shaft is driven by a servo spindle motor, which can realize stepless speed change. (Also according to customer requirements, other brands of CNC systems can be selected).

2. The machine tool has electronic handwheel tool setting and auxiliary tool adjustment functions.

3. The radial feed of the column of the machine tool adopts high-precision ball screw, which has high radial positioning accuracy and repeat positioning accuracy.

4. The lifting mechanism of the slide plate of the machine tool adopts German clamping components, and is equipped with an independent medium and high pressure hydraulic station, which ensures sufficient clamping force.

5. The machine tool table adopts a conical shape, which is conducive to the flow of iron filings; the internal use of high-precision radial bearings and high-precision variable tooth thickness worm gear pairs ensures the accuracy of gear cutting.

6. The machine tool is equipped with an independent low-pressure hydraulic station, which mainly provides powerful lubrication for the tool holder, general lubrication for driving the tool, and loosening and clamping of the rotary cylinder of the worktable. It returns oil in time and does not produce mixed oil phenomenon.

7. The machine tool is equipped with a separate cooling oil tank, which adopts large flow cooling.

8. The machine tool adopts a special curved double cam and double roller tool letting mechanism, which can realize accurate, stable and reliable tool letting movement under high-speed stroke, and the machine tool also has the function of oblique tool letting.

9. The machine tool is equipped with exquisite and environmentally friendly practical protection.

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