Error analysis of gear hobbing
Through the analysis of gear hobbing machining error, the following are mainly completed: The formation mechanism of tooth profile error […]
Through the analysis of gear hobbing machining error, the following are mainly completed: The formation mechanism of tooth profile error […]
In the process of gear hobbing, the machined materials and cutting conditions affect the unit cutting force of the hob,
The research on gear hobbing process in foreign countries was carried out earlier. Germany and Japan began to carry out
Gear hobbing is processed by the principle of generating method. It can be used to process spur gear, helical gear,
Driven by the rapid development of automobile industry, China’s automobile gear manufacturing industry shows sustained and rapid growth. According to
The tooth profile of spiral bevel gear is a complex free-form surface. At present, its measurement is mainly carried out
The correctness of research methods and theories needs to be verified by relevant experiments. The experiment is divided into two
The spiral bevel gear processed by face hobbing adopts the principle of indirect generation method to ensure that the large
The spiral bevel gear for face hobbing of spiral bevel gear generally adopts equal height tooth system, and its root
The forming process of bevel gear face hobbing can be regarded as a meshing transmission between the generating wheel and
This paper studies the theory of tooth surface forming principle, geometric parameter design, cutting adjustment calculation, tooth contact characteristic control
In terms of the theory of face hobbing of spiral bevel gears, F.L. Litvin and Qi fan analyzed the machine
The research has deepened the domestic understanding of the end face hobbing processing method, but these studies rarely mention the
The research on the influence of shaft intersection angle error on gear hobbing processing is now realized in combination with
When no external error is considered in gear hobbing, that is, the center distance installation error of gear hob is
Based on Mathematica software, draw the right tooth surface of one tooth of spur cylindrical gear, and combine the right
The new digital simulation method of cylindrical gear hobbing process is proposed, which provides a new way for cylindrical gear
The new digital simulation method of cylindrical gear hobbing process is proposed. By analyzing the position relationship between the hob
The error caused by the change of radial distance between the gear hob and the axis of the processed cylindrical
Gear as the core mechanical foundation. Despite the high requirements for the manufacturing and installation accuracy of gears, with the
During gear hobbing, the hob axis and gear axis must meet a certain axis intersection angle. The installation axis intersection
Digital simulation technology is a comprehensive technology based on a variety of disciplines and theories, using computer and its corresponding
Gear hobbing processing principle, as shown in the figure. There are many processing methods for cylindrical gears. According to the
With the progress of science and technology, the introduction of technology and the deepening of technological transformation, the processing technology
When machining and manufacturing gear hobs, there is an error between the generating surface of gear hobs and the theoretical
The basic research idea is: carry out digital simulation on the gear hobbing process of cylindrical gear, analyze the position
The machining error of gear is determined by the process error factors of machine tool, cutting tool, wheel blank and
According to the research results, the existing problem is to simplify the gear hobbing process in three-dimensional space to two-dimensional
Gear hobbing machine is widely used in automobile, machine tool, engineering machinery and other machinery manufacturing industries. In gear hobbing,
The mapping law between machining system error, gear hobbing principle error, tool error, machine tool vibration and gear machining accuracy
Gear hobbing accounts for more than 90% of the gear forming process. In the cutting process of gear hobbing machine
The model is shown in the figure. The tooth thickness error of the tool in the axis direction will affect
First, create the process model of cutting tool machining gear, as shown in the figure. Therefore, we create the following
When the gear hobbing machine processes the gear, the accuracy of the cutter has a great influence on the gear
As shown in the figure, it is the schematic diagram of error transmission in the machining process on the gear
The principle of gear hobbing process is to mesh the gear workpiece with the hob. The gear hobbing hob is
The machining principle of gear hobbing is shown in Figure 1. Theoretically, during gear hobbing, the gear hobbing hob meshes
Aiming at the most typical gear hobbing process of gear forming, focus on the multivariate mapping relationship between gear accuracy
Gear hobbing is a very efficient and typical tooth making method. It is widely used in semi finishing of hard
Under extremely complex conditions, the bearing capacity, service life, safety and meshing tooth surface contact behavior of high-performance gear transmission
The matching of machining quality and machining efficiency is an issue to be seriously considered in finishing machining. After the
In order to further verify the correctness and effectiveness of the profile design method of the rake face of the
Large gears generally refer to gears with gear modulus > 16 mm, which are widely used in heavy machinery such
After the assembly of hob and helical gear, the following settings must be completed before the hobbing motion simulation of
The research on the machining method of face gear is an important part of the research on face gear transmission
The main problems in the production line are as follows: Based on the actual situation of automobile gear production line,
The hob cuts at a certain position, and the cutting teeth bear different working loads, so the wear amount of
The selection of gear hobbing cutting speed should consider the tool material and appropriate coating, the modulus of the processed
The gear hobbing hob with modulus of 2, number of grooves of 12 and number of heads of 2 is
The rake angle of the gear hobbing hob is generally 0 °, and its rake face should pass through the
In the meshing process of gear hobbing, the gear hobbing hob is equivalent to the worm, so its stress condition
Before hobbing helical gear, first, prepare the combined fixture and clamp it correctly according to the relative position of each
The research on gear hobbing in China is relatively late, and no one has made a comprehensive and systematic analysis
In order to meet the requirements of hobbing helical gear on the gear hobbing machine, the tooling fixture is designed
Study the tooth surface forming principle of face hobbing Cycloid Bevel gear, and form a complete set of theories and
① A calculation method for cutting adjustment of spiral bevel gear face hobbing is proposed. This method can arbitrarily specify
Spiral bevel gear is an important transmission part widely used in vehicle, aircraft, machine tool, industrial reducer and other machine
Based on the hobbing processing of spur gear studied by ZHY casting senior engineer team, the tooling and fixture designed
1.Present situation of spur gear machining The processing method of face gear is similar to that of ordinary cylindrical gear,
The aviation industry has high requirements for transmission performance. Face gear transmission is a new transmission mode to realize intersecting