Q:The difference between the gear hobbing machine hob hob with single and multi line please tell me what it is

This is actually very simple as long thread form almost but the gear ratio will turn to recommend a specific group of host is the expertise of 124669105 mechanical processing technology alliance

Q:What's the difference in shape and function of the shaper cutter, shaving cutter and gear hob?

There are pictures and documents in the attachment, and the processing methods and principles of each tool are explained

Q:My company is using hobbing - shaving processing technology, the amount of shaving measurement, cross rod spacing and shaving teeth life size difference of 0.12mm-0.15mmThe accuracy level of the hob is related to the accuracy of the processing gear. The gears we processed require 7 levels of accuracy. The hob before each order is a class a precision, which is in conformity with the standardRecently a group of B level precision hob, no difference in other parameters, not on the bed test work, I would like to consult friends, what will the accuracy grade of hob parameters of gear, like our shaving, shaving is not able to correct these errors?

The higher the accuracy, the smaller the gear tolerances, the better the surface finish. But you want to see carefully, and write is B class, sometimes can not reach the B level requirements, and only test to know whether it is B level, so must buy big manufacturers of goods

Q:How about the front edge, the normal and the normal tooth shape of the hob with rake angle?

To design hob, first of all, the tooth profile of the reference rack is required, and other related teeth are obtained according to the different structure of the hob. If the hob is a bevel, zero, or rake angle, the reference rack tooth profile can be used as the normal profile of the cutter. If the hob is the straight groove zero front angle, the above reference rack tooth profile shall be converted to the axial profile of the cutter. If the hob is straight groove with positive rake angle, it should be in front of the tooth or the axial profile of basic rack tooth profile conversion to the knife, which is who, detection technology, and the dielectric depends on the designer tool depth and a site. If the hob is a bevel, zero, or front angle, the above reference rack profile shall be converted to the front tooth profile of the knife. While the original basic rack tooth profile and linear tooth shape (involute curve tooth (workpiece) and processing of non involute workpiece) two, the landlord asked not clear answer, ask you to give an example, test analysis.

Q:Why is the front rake hob good for chip removal?

The last said will form a positive front angle, a negative front angle, that is, the two side cutting edges. A closer look at the last post, I found no hob for the main cutting edge discussed. The reason is to answer the question of positive and negative angles. The main rake angle is the front edge of the main cutting edge formed by the intersection of hob diameter and chip groove.

Q:Grinding wheel for grinding hob

LZ uses the five axis linkage tool grinding, the good machine tool certainly must match the good tool! The grinding wheel should be CBN, with a particle size of 100-120.

Q:Hello everyone！ I would like to ask about the difference between variable displacement hob and non variable hob First of all, is there any difference between the non - variable and modified gears in the design of hobs? If it's different, please give me more details, thank you!

In the gear hob, the hob design is not the same as the ordinary hob design after the gear parameters are calculated by displacement.

Q:What is the number of hob head?

The number or number of teeth in the same law

Q:Hobbing machine hob installation angle is wrong, what will happen?Go to work in the middle of the hob stopped, and then use the manual to hob vertical movement, and then start the workpiece and why card and the card hob is bad? And the consequences?

The helix angle is not rightIn case of a sudden power failure, the insurance operation will withdraw from the workpiece manually and then start to hit the neutral and slow to the stop timeThe gear hobbing machine is a mechanical gear transmission mechanism of a certain gap exists when running to suddenly stop gear internal clearance uneven distribution, and then start the hob cutter tooth workpiece synchronization card bad.

Q:On the Y3150, ready to use left gear hob hobbing left gear. How to adjust machine tools? Thank you, heroes

Not this meaning, specific point, and, the left and right knife processing, the gear hobbing machine work table whether to reverse, if reversed, the knife pole is also reversed, need to put the turret back loaded?...... Ask for expert advice...