Automatic rounding technology of spiral bevel gear based on reverse engineering modeling
Spiral bevel gear is an indispensable part of the power transmission system. Spiral bevel gear is a kind of complex […]
Spiral bevel gear is an indispensable part of the power transmission system. Spiral bevel gear is a kind of complex […]
Hypoid gear has the advantages of large coincidence, strong tolerance, high meshing stability, and is suitable for large intersection angle,
Cycloid hypoid gear has a series of advantages such as high processing efficiency, less equipment required, stable transmission and low
The numerical simulation of hypoid gear tooth surface, that is, the simulation of tooth surface machining, is the basis of
Non-circular planetary gear train mechanism has been widely studied and applied in rice transplanting mechanism because it can realize unequal
1. Tooth profile involute analysis The key to accurate modeling of gears is to construct involutes of gear teeth. The
SolidWorks software is a software developed by American SolidWorks company, which integrates two-dimensional design, three-dimensional design and finite element analysis.
For cycloid hypoid gears, based on the accurate modeling of the tooth surface, the tooth geometric contact analysis, loading contact
Taking the “Austrian” cycloid hypoid gear used in the axle as the research object, the geometric parameters and cutting parameters
We can calculate the end face of a single spiral gear according to the following formula: Where B is the
There is less research literature on the meshing performance analysis and active design of cycloid hypoid gears in China. The
Due to the inevitable tooth surface deviation caused by machining error and heat treatment deformation, the optimal mating tooth surface
Digital gear tooth surface design, analysis and manufacturing is the trend of gear development. Through digital means, gear production efficiency
After the pretreatment of the end face spiral gear is completed, the next task is to establish the coordinate system.
The meshing performance analysis of hypoid gear tooth surface is based on the accurately established tooth surface model, including geometric
Gear mechanism can be used to transmit the motion and power between any two shafts in space, and its peripheral
The tooth surface error pre correction technology can make the machined tooth surface height approach the theoretical design tooth surface,
Then preprocess the reverse engineering point cloud file of end face spiral gear, remove the miscellaneous points, and smooth the
The calculated geometric parameters and machining parameters of the wheel blank lay the foundation for the tooth surface modeling. On
Cycloid hypoid gear tooth surface geometry is complex, only its machining simulation, error sensitivity, meshing performance and tooth surface active
For cycloid hypoid gears processed by double-sided method, both sides of the tooth groove are processed at the same time,
The active design technology of gear tooth surface designs the shape of gear tooth surface according to the functional requirements
The tooth surface error directly affects the meshing performance of the tooth surface. Due to the inevitable machining error and
Firstly, the object of the end face spiral gear that needs reverse modeling is scanned in three dimensions. After the
TCA technology uses computer to simulate the meshing process of gear pair under no-load condition, and can obtain each instantaneous
With the rapid development of China’s automobile industry and the increasingly close cooperation with automobile enterprises in Europe, America, Japan,
The meshing performance analysis and tooth surface design of cycloid hypoid gear first need to calculate the geometric parameters and
Due to the inevitable machining error and heat treatment deformation, the actually processed gear tooth surface often deviates from the
With its special tooth shape, end face spiral gear has the advantages of high centering accuracy and strong bearing capacity.
After nearly 70 years of development, the technology of hypoid gear has been continuously improved, but as one of the
TCA technology is a pure mathematical method, which assumes that the gear teeth are rigid, and TCA technology only analyzes
At present, small module gears are widely used in high-precision instruments and instruments. The working performance and service life of
Hypoid gears (also known as hypoid gears) are used to transmit motion and power between staggered shafts, and are widely
Gears with module less than 1 mm are generally called small module gears. Small module gear is in an extremely
The tooth contact area is one of the important symbols to measure the meshing quality of bevel gears. Spiral bevel
The primary link of physical reverse engineering is reverse engineering point cloud data acquisition, also known as the digitization of
The virtual model of spiral bevel gear NC machining machine tool is the image of its real entity in the
The following functions should be included in the motion simulation function module of spiral bevel gear tooth surface forming CNC
Energy and environmental problems are becoming increasingly serious, and new energy vehicles have attracted much attention. Electric vehicles have become
Gear mechanism is the most widely used and important transmission mechanism in various mechanical equipment. In the reverse engineering design
Two objective functions and three design variables are proposed by using local synthesis method and TCA technology, and the constraints
In the fields of aerospace vehicles, high-speed and heavy-duty spiral bevel gears, as the key of the transmission system, have
Based on the actual motion data of spiral bevel gear NC machining machine tool, the spiral bevel gear machining process
Establish the gear blank with tooth surface, as shown in Figure 1. Extract the top surface, inner conical surface and
The machining process of spiral bevel gears is relatively complex, and the tools used are special tools. The machining machine
According to the point cloud construction curve of arc tooth surface gear, firstly slice the point cloud several times along
In the proportion relationship between the failure parts and modes of the reducer, the gear, bearing and shaft concentrate 90%
Cutting simulation is the key link of spiral bevel gear digital manufacturing. In the virtual environment, the virtual machining of
The spiral denaturation method of gear pinion machining is proposed on the basis of denaturation processing. Its essence is that
Face gear transmission is a kind of gear transmission in which cylindrical gears mesh with bevel gears. Angle between two
The forming method of gear wheel machining was put forward by Gleason company in the late 1930s. It is mainly
Cylindrical gears have the advantages of strong bearing capacity, stable meshing, convenient processing and adjustment, and are widely used in
In the process of reverse modeling of spiral bevel gear by reverse engineering, there will be errors in the process
Hypoid gear has the advantages of strong bearing capacity, high transmission efficiency and large overlap coefficient. It is widely used
In the spiral bevel gear milling machine with traditional mechanical structure, the rotating shaft of the cutter head is installed
The tool inclination method is used to process the hypoid gear. Since the number of teeth of the small wheel
The digital modeling of Cycloid Bevel Gear and hypoid gear is to establish the three-dimensional solid model of Cycloid Bevel
With the increase of transmission ratio, the pitch cone angle of the large wheel will increase. The risk of large
The traditional mechanical hypoid gear milling machine processes spiral bevel gears and hypoid gears using the generating wheel principle shown
Digital design and manufacturing technology is the basis of advanced manufacturing technology. Digital modeling is the basis of realizing digital