Six-axis five-linkage spiral taper gear cutting machine tool

Abstract

The invention relates to a six-axis five-linkage spiral bevel gear cutting machine. A lathe bed is provided with a fixed upright post and an X-direction linear guiderail with an X-axis slipway which is driven by a driving mechanism to move along the guiderail; the X-axis slipway is provided with a rotary table and a rotary table driving mechanism; the rotary table is provided with a workpiece box with a workpiece main shaft which is driven by the driving mechanism to rotate; one lateral surface of the upright post is provided with a Y-direction linear guiderail perpendicular to the X-direction linear guiderail; the Y-direction linear guiderail is provided with a Y-axis slipway which is driven by the driving mechanism to move along the guiderail; the Y-axis slipway is provided with a Z-direction linear guiderail perpendicular to the Y-direction linear guiderail; the Z-direction linear guiderail is provided with a tool box which is driven by the driving mechanism to move along the guiderail; and the tool box is provided with a rotatable tool spindle. The six-axis five-linkage spiral bevel gear cutting machine has the advantages of simple and stable structure, good reliability, good rigidity, few parts, small occupied area, easy protection and chip removal, and convenient assembly and disassembly of workpieces and tools.

Description

technical field [0001] The invention relates to numerical control processing equipment, and further refers to a gear milling machine and a gear grinding machine for processing spiral bevel gears. Background technique [0002] In the prior art, spiral bevel gear processing equipment includes mechanical spiral bevel gear processing machine tools and numerically controlled spiral bevel gear processing machine tools. The structure and adjustment links of mechanical spiral bevel gear processing machine tools are the most complicated among gear machine tools. With the advancement of technology, spiral bevel gear processing machine tools have adopted figure 1 As shown in the structure, it uses a computer to directly control three linear axes (namely X, Y, Z axes) and three rotational axes (namely A, B, C axes), that is, it can simulate the machining motion of a mechanical spiral bevel gear processing machine tool , so as to process the spiral bevel gear. The CNC spiral bevel gea...

AI Technical Summary

Problems solved by technology

This treatment does not give full play to the role of numerical control technology, and there are the following main defects:

[0003] 1. There is a sector gear or friction wheel with a large diameter on the Z-axis sliding table 22 in the Z direction of the linear axis. The processing technology is not good, and the friction wheel is easy to slip;

[0004] 2. The shape of the workpiece box 28 is complicated, the manufacturability of the processing is not good, and it is difficult to ensure the processing accuracy;

[0005] 3. All the weight of the workpiece box 28 is pressed on the sector gear or the friction wheel, so it is difficult to unload;

[0006] 4. The X-axis sliding table 25 in the X direction of the linear axis is a gantry, and the Y-axis sliding table 24 in the Y direction of the linear axis moves vertically on the gantry. The servo motor and hydraulic balance cylinder are erected very high, and the protection is very difficult;

[0007] 5. For the sake of environmental protection and saving, the development direction of spiral bevel gear milling is dry cutting, that is, no coolant is added during processing, the cutting speed is very fast, and the heat is taken away by chips, which requires that hot chips cannot fall on the bed. , so as not to affect the thermal deformation of the machine tool, figure 1 It is difficult for the device to do this;

[0008] 6. The machine tool has many parts and occupies a large area, so it is inconvenient to load and unload the workpiece

[0009] Publication No. CN1457279 Patent Application Publication describes a machine for producing bevel gears. This machine installs both the tool spindle and the workpiece spindle on a column. Its structure not only leads to high manufacturing costs, but also poor assembly process. Difficult to guarantee machining accuracy

[0010] In addition, the rigidity of the rotary mechanism of the workpiece box of the machine tool in the prior art is difficult to guarantee, which affects the machining accuracy of the gear

Images