CN1557592A

CN1557592A - Totally-enclosed displacement making method for radial shaver

Info

Publication number: CN1557592A
Application number: CNA2004100051531A
Authority: CN
Inventors: 苗兴然; 樊凤年
Original assignee: Tangshan Aisin Gear Co Ltd
Current assignee: Tangshan Aisin Gear Co Ltd
Priority date: 2004-02-12
Filing date: 2004-02-12
Publication date: 2004-12-29

Abstract

The present invention relates to closed ram-off machining process with radial gear shaving cutter, and is especially the process of machining gear with radial gear shaving cutter. The technological scheme is that during designing gear shaving cutter, different ram-off amounts are calculated for different teeth so that different teeth produce different cutting traces in homogeneously distribution state and certain machined teeth roughness is obtained. Thus designed and sharpened cutter is then used in shaving gear. The gear shaving cutter of the present invention may be used in machining several kinds of gear with different teeth numbers in required roughness, that is, to make radial gear shaving cutter universal.

Description

A kind of totally-enclosed dislocation preparation method of radially razor

Affiliated technical field:

The present invention relates to a kind of totally-enclosed dislocation preparation method of radially razor, particularly add the method for work gear workpiece with razor radially.

Background technology:

At present, people add the work gear workpiece with razor radially, generally adopt the radially method of dividision into groups of razor cutter groove dislocation design.The razor specific aim that this kind method is arranged is stronger, promptly by a certain workpiece design razor, carry out cutter manufacturing, sharpening then, again gear is carried out shaving processing, this radially razor have only processing during this workpiece roughness qualified, roughness is very difficult qualified when processing the workpiece of other number of teeth, has had a strong impact on the radially enforcement of razor versatility.

Summary of the invention:

The object of the invention provides a kind of totally-enclosed dislocation preparation method of radially razor, roughness was qualified when the razor that this method is designed was not only processed a kind of gear, and under gear principal parameter same case, but various workpieces and roughness that the shave number of teeth is different are qualified, thereby realize that radially razor is general, solve the problems referred to above that background technology exists.

Technical scheme of the present invention is: when design razor magnitude of misalignment, make the magnitude of misalignment difference of the different teeth of razor by calculating, make the cut channel of per tooth on the workpiece flank of tooth also different, be uniform state, thereby guarantee tooth-face roughness.

Roughness is qualified when adopting the present invention, the razor of designing not only to process a kind of gear, and under gear principal parameter same case, but different various workpieces and the roughness of the shave number of teeth is qualified, thereby realizes that radially razor is general.The present invention has characteristics such as technology is reasonable, easy to operate, versatility is good, solves because to shave back workpiece roughness defective and can't realize razor versatility problem.

Description of drawings:

Fig. 1 designs radially razor cutter groove magnitude of misalignment schematic diagram for the present invention.

Fig. 2 is that the razor and the workpiece spindle angle of cut are positive schematic diagram.

Fig. 3 be razor and the workpiece spindle angle of cut for just, cutting is positive schematic diagram in proper order.

Fig. 4 be razor and the workpiece spindle angle of cut for just, cutting is negative schematic diagram in proper order.

Fig. 5 is that the razor and the workpiece spindle angle of cut are negative schematic diagram.

Fig. 6 is that the razor and the workpiece spindle angle of cut are negative schematic diagram in proper order for negative, cutting.

Fig. 7 is that the razor and the workpiece spindle angle of cut are positive schematic diagram in proper order for negative, cutting.

The specific embodiment:

The invention will be further described by the following examples.

In an embodiment, realize magnitude of misalignment and cutting effect the best of the different teeth of razor, concrete grammar is as follows:

1. according to workpiece tooth number Z g, modulus, select suitable cutter number of teeth Zc and cutter slot pitch Sc selection principle: (1) Zg and Zc relatively prime (2) satisfy shaving centre-to-centre spacing and require (3) Sc/Zc=0.015～0.04 millimeter

Wherein (1), (3) condition is satisfied the most important.

2. select reasonable magnitude of misalignment Sa

With reference to accompanying drawing 1:Sa=f * Sc ÷ Zc wherein the size of f--integer Sa numerical value directly influence flank of tooth knife mark spacing.

3. according to different Sa calculate adjacent twice cut channel interval S iSi implication with reference to accompanying drawing 3,4 Si=Zg * Sa-n * Sc wherein n-be integer

The cut channel spacing is not the smaller the better, and too big cutting effect is undesirable, and too little cutting is difficult to evenly, general before and after twice cut channel at interval 0.12～0.25 millimeter for well.

4. determine the dislocation rotation direction

With reference to γ among accompanying drawing 2-accompanying drawing 7 figure is crossed axis angle, and 1,2 refers to the cutting sequencing

When crossed axis angle γ was "+", Fig. 3 state Si was "+", and Fig. 4 state Si is "-"

When crossed axis angle γ was "-", Fig. 6 state Si was "-", and Fig. 7 state Si is "+"

In order to obtain better tooth-face roughness, general selection principle is as follows:

Crossed axis angle selects dextrorotation for "+" Si for "-" dislocation rotation direction

Crossed axis angle selects dextrorotation for "-" Si for "+" dislocation rotation direction

Otherwise it is then opposite

5. simulation cutting checking

According to several magnitude of misalignment that calculate workpiece is carried out the simulation cutting test, select suitable cutting effect, require no Repeated Cutting.

6. the result marks: cutter slot pitch Sc, magnitude of misalignment Sa, rotation direction

7. carry out cutter manufacturing, sharpening by above-mentioned design, again gear is carried out shaving processing.

Claims

1, a kind of totally-enclosed dislocation preparation method of radially razor, when it is characterized in that designing the razor magnitude of misalignment, make the magnitude of misalignment difference of the different teeth of razor, make the cut channel of per tooth on the workpiece flank of tooth also different by calculating, be uniform state, thereby guarantee tooth-face roughness.

2, according to the totally-enclosed dislocation preparation method of the described radially razor of claim 1, it is characterized in that realizing the magnitude of misalignment and the cutting of the different teeth of razor, concrete grammar is as follows:

1. according to workpiece tooth number Z g, modulus, select suitable cutter number of teeth Zc and cutter slot pitch Sc selection principle: (1) Zg and Zc relatively prime (2) satisfy shaving centre-to-centre spacing and require (3) Sc/Zc=0.015～0.04 millimeter;

2. select the wherein direct flank of tooth knife mark spacing that influences of size of f--integer Sa numerical value of reasonable magnitude of misalignment SaSa=f * Sc ÷ Zc;

3. according to different Sa calculate adjacent twice cut channel interval S i Si=Zg * Sa-n * Sc wherein n-be integer;

When determining that 4. dislocation rotation direction crossed axis angle γ be "+", state Si is "+", and state Si is "-" crossed axis angle γ when being "-", and state Si is "-", and state Si is "+";

5. simulation cutting checking

According to several magnitude of misalignment that calculate workpiece is carried out the simulation cutting test, select suitable cutting effect, require no Repeated Cutting;

6. the result marks: cutter slot pitch Sc, magnitude of misalignment Sa, rotation direction;

7. by above-mentioned design cutter manufacturing, sharpening, again gear is carried out shaving processing.

3, according to the totally-enclosed dislocation preparation method of the described radially razor of claim 2, it is characterized in that according to different Sa calculate adjacent twice cut channel interval S i Si=Zg * Sa-n * Sc wherein n-be integer, the cut channel spacing is not the smaller the better, too big cutting effect is undesirable, too little cutting is difficult to evenly, general before and after twice cut channel at interval 0.12～0.25 millimeter for well.

4, according to the totally-enclosed dislocation preparation method of the described radially razor of claim 2, when it is characterized in that determining dislocation rotation direction crossed axis angle γ for "+", state Si is "+", and state Si is "-"

When crossed axis angle γ was "-", state Si was "-", and state Si is "+",

Otherwise it is then opposite.