CN102896380A - Processing method of exchangeable small modulus gleason spiral bevel gears or small modulus hyperbolic gears in quantity production - Google Patents
Processing method of exchangeable small modulus gleason spiral bevel gears or small modulus hyperbolic gears in quantity production Download PDFInfo
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- CN102896380A CN102896380A CN2012103411938A CN201210341193A CN102896380A CN 102896380 A CN102896380 A CN 102896380A CN 2012103411938 A CN2012103411938 A CN 2012103411938A CN 201210341193 A CN201210341193 A CN 201210341193A CN 102896380 A CN102896380 A CN 102896380A
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Abstract
The invention provides a processing method of exchangeable small modulus gleason spiral bevel gears or small modulus hyperbolic gears in quantity production. The method comprises the following steps: 1) respectively measuring the gear thicknesses of a rack wheel and a pinion with a mounting basal plane as benchmark, and controlling the uniform mounting basal plane as the gear thickness value of the benchmark through a gear thickness measuring device; 2) testing and analyzing the processing gear surfaces of the rack wheel and the pinion through a three-dimensional digital measuring instrument, and correcting the processing parameters to achieve uniform gear surfaces within an error range; and 3) confirming the gear surface engagement contact region and engagement gap of the processed gears. The processing method provided by the invention can be applied in the quantity production of exchangeable small modulus gleason spiral bevel gears or small modulus hyperbolic gears, the installation of the gears is unnecessarily adjusted, and the traditional pair distribution supply mode is replaced to greatly shorten the assembly time so as to meet the market demand.
Description
Technical field
The present invention relates to small mode number spiral bevel gear and little modulus hypoid gear production technical field.
Background technology
Because the superior function of small mode number spiral bevel gear, small mode number spiral bevel gear is widely used in the fields such as electric tool, sewing machine, instrument machinery, graden machine, and amount is large, scope is wide.
Present small mode number spiral bevel gear all is that large steamboat is supplied in pairs, must mounted in pairs when using enterprise's assembling, and adjust the locating distance of large steamboat, until large steamboat contact zone and back lash reach running requirements.Everything often will take the more working time in assembling process.
The outer manpower cost of Present Domestic constantly rises, and the installation time that how to reduce bevel gear is being explored always by the enterprise of many wilderness demand small mode number spiral bevel gears, improves the assembling speed of small mode number spiral bevel gear, reduces assembly cost.
Summary of the invention
Technical problem solved by the invention provides a kind of processing method of producing interchangeable small mode number spiral bevel gear or little modulus hypoid gear in enormous quantities.For this reason, the present invention is by the following technical solutions:
Described method comprises the steps:
1) respectively bull wheel and steamboat being carried out the transverse tooth thickness measurement take installation base surface as benchmark, is the transverse tooth thickness value of benchmark by the consistent installation base surface of transverse tooth thickness measurement mechanism control;
2) with the 3-dimensional digital measuring instrument large steamboat processing tooth surface error is tested, analyzed, revise machined parameters, reach the consistent gear teeth flank of tooth in the error range;
3) flank engagement contact zone, the back lash of the gear processed are confirmed.
By above technical scheme, processing method of the present invention can be applied to produce in enormous quantities interchangeable small mode number spiral bevel gear or little modulus hypoid gear, and the installation of this gear need not adjusted, and substitutes traditional paired preparation supplying mode, can greatly shorten installation time, meet the need of market.
Description of drawings
Fig. 1 is the bevel gear with 90°face angle process principle, the cutting cone gear;
Fig. 2 be Double-surfaces Method processing spiral bevel gear, facewidth mid point in the middle of teeth groove, concave surface, convex surface helical angle are all different;
Fig. 3 is vernier caliper measurement transverse tooth thickness schematic diagram;
Fig. 4 is comparative method for measuring transverse tooth thickness schematic diagram;
Fig. 5 is for adopting installation base surface as the transverse tooth thickness measurement mechanism schematic diagram of benchmark;
Fig. 6 is the enlarged drawing of the measured gear of Fig. 5;
Fig. 7 is that the transverse tooth thickness of gear shown in Figure 6 is measured enlarged drawing;
Partial devices structural representation when Fig. 8 is transverse tooth thickness measurement mechanism survey steamboat shown in Figure 5;
Fig. 9 is for adopting digital control three-dimensional to measure the only flank of tooth areal map of the prototype gear flank of tooth; (with reference to the standard of AGMA, 5 points of tooth depth orientation measurement in flank of tooth measurement category, 9 points of facewidth orientation measurement)
Figure 10 is big or small wheel construction and Parameter Map among the embodiment 1;
Figure 11 adopts digital control three-dimensional to measure measured bull wheel three-dimensional measurement tooth surface error value among the embodiment 1;
Figure 12 is the grid chart that obtains according to Figure 11 among the embodiment 1;
Figure 13 adopts digital control three-dimensional to measure measured steamboat three-dimensional measurement tooth surface error value among the embodiment 1;
Figure 14 is the grid chart that obtains according to Figure 13 among the embodiment 1.
The specific embodiment
As shown in Figure 1, the Bevel Gear Drive theory of engagement is introduced the processed and applied bevel gear with 90°face angle cutting principle of virtual cylindrical gear concept, conical gear, and cutting tool is pressed root angle by gear cutting machine and installed vertically by the root circular cone of gear cutting machine.Small mode number spiral bevel gear adopts dual double-side cutting processing method, and the transverse tooth thickness of large steamboat is controlled, and by means of the pairing of rolling inspection machine to the tooth contact district, the control of back lash realizes the paired production of small mode number spiral bevel gear, in pairs the supply of material.Comprise among the figure: flat-top produces generating gear 101, Cutting tool 102, dedendum angle 103, root angle 104, processed gear 105.
As shown in Figure 2, small mode number spiral bevel gear generally adopts dual double-side cutting processing method, and large steamboat is all processed with Double-surfaces Method.Alternate blade cutter cutter tooth process teeth groove cuts the male and fomale(M﹠F) of gear teeth, and gear teeth concave surface is not identical in the helical angle of facewidth mid point in the middle of the gear teeth convex surface, teeth groove.Above-mentioned two aspects, this will pass through a series of corrections, and large steamboat is normally meshed.And obtain required tooth contact district.
As shown in Figure 3, the general gear tooth vernier calliper that adopts of the transverse tooth thickness of conical gear control is measured, or as shown in Figure 4, control transverse tooth thickness with comparison method, and debug the contact zone of large steamboat and back lash by rolling inspection machine, reach large steamboat and match in pairs, finally dispatch from the factory in pairs.In pairs the gear of supply will be installed in couples using factory, and the adjustment by locating distance, until large steamboat joggle(d) joint contact area, running requirements is satisfied in the back lash.The small mode number spiral bevel gear that is this paired production will be revised locating distance when assembling, to reach required contact zone, running requirements is satisfied in required back lash.
The invention provides the interchangeable small mode number spiral bevel gear of a kind of production in enormous quantities or little modulus hypoid gear processing method, described method comprises the steps:
1) respectively bull wheel and steamboat being carried out the transverse tooth thickness measurement take installation base surface as benchmark, is the transverse tooth thickness value of benchmark by the consistent installation base surface of transverse tooth thickness measurement mechanism control;
2) with the 3-dimensional digital measuring instrument large steamboat processing tooth surface error is tested, analyzed, revise machined parameters, reach the consistent gear teeth flank of tooth in the error range;
3) flank engagement contact zone, the back lash of the gear processed are confirmed.
Below describe in detail:
Specifically, in the step 1), measure as the transverse tooth thickness measurement mechanism of benchmark with employing installation base surface as shown in Figure 5, this transverse tooth thickness measurement mechanism is located on the installation base surface.This transverse tooth thickness measurement mechanism comprises guide rail 5, described guide rail is provided with guide rail slide block 1 and the guide rail slide block 27 that can move forward and backward, described guide rail slide block 1 is provided with table pole socket 8, erect on the described table pole socket 8 table bar chi 9 is arranged, described table bar chi 9 is provided with the table bar 10 that can move up and down along table bar chi 9, described table bar 10 links to each other with dial gauge or digital display rule 13 with replaceable measurement ball, be equipped with and accurately locate on the described guide rail slide block 27, rotate the workbench 11 of tested gear, this workbench 11 is for being used for measuring the workbench of bull wheel, replaceable for being used for measuring the workbench of steamboat, described guide rail slide block 1 and the guide rail slide block 27 middle fixing positioning seats 12 that are provided with, be provided with the activity space of putting into slip gauge A between described positioning seat 12 and the described table pole socket 8, described measurement mechanism also comprises the slip gauge B that is positioned on the workbench 11, measure bull wheel be pitch cone angle greater than 45 ° gear in, need to change workbench for measuring the workbench of bull wheel, this moment, the size of described slip gauge A was identical to the distance of gear centre with the transverse tooth thickness measurement point of tested gear, and the size of described slip gauge B is identical to the distance of gear bottom with the transverse tooth thickness measurement point of tested gear; Measure steamboat be pitch cone angle less than 45 ° gear in, need to change workbench for measuring the workbench of steamboat, this moment, the size of described slip gauge A was identical to the distance of gear bottom with the transverse tooth thickness measurement point of tested gear, and the size of described slip gauge B is identical to the distance of gear centre with the transverse tooth thickness measurement point of tested gear; The size of described measurement ball matches with the transverse tooth thickness of the gear of surveying.
This transverse tooth thickness measurement mechanism, measurement is convenient, certainty of measurement is high, effective, reliable.The detail view of gear when Fig. 6,7,8 is respectively this transverse tooth thickness measurement mechanism test.Will be by the measurement bulb diameter size d that matches with gear when adopting this transverse tooth thickness measurement mechanism prototype gear transverse tooth thickness, measure ball and adjust measurement mechanism to size A, the B of installation base surface.Measure bulb diameter size d, measure ball to reference dimension A, B (distance of transverse tooth thickness measurement point to the distance of gear bottom, transverse tooth thickness measurement point to gear centre) must calculating correctly.Steamboat (the cyclotomy cone angle is less than 45 °) is measured by method shown in Figure 8.
Step 2) in, to the test of large steamboat processing tooth surface error, analysis, revises machined parameters with the 3-dimensional digital measuring instrument; What adopt in the present invention is that Full Automatic CNC 3-dimensional digital measuring instrument carries out three-dimensional measurement (Fig. 9) to the size wheel flank of tooth.First the theoretical flank of tooth is calculated, by the Survey Software gauge head flank of tooth is measured, and compare with the theoretical flank of tooth and to print the tooth surface error value, and draw out flank of tooth grid chart, can judge easily, objectively gear teeth cutting situation by the flank of tooth grid chart that the tooth surface error value is drawn, and according to the gear cutting situation of judging, by revising the cutting parameter of lathe, cutter etc., guarantee that the flank of tooth that processes reaches satisfied, qualified requirement.
In the step 3), the gear processed producing last flank engagement contact zone, when the back lash is confirmed, compressing the large steamboat tooth contact of rolling inspection machine inspection district, is checked large steamboat locating distance error, and proofreaies and correct locating distance with slip gauge.Take above-mentioned 2 as the basis, by rolling inspection machine debugging size wheel flank of tooth joggle(d) joint contact area, and the back lash.It is highly important that the error of wanting compression sizes wheel locating distance on inspection machine, confirm the joggle(d) joint contact area of large steamboat the best and required back lash.Available precision gauge block carries out the school inspection to locating distance on the rolling inspection machine.Must consider simultaneously the heat treatment deformation amount of large steamboat.
During production in enormous quantities, available many stock-removing machines are processed the large steamboat of unified parameter simultaneously, but the installation position of wheel of stock-removing machine, cutter spacing must be consistent.Controlling consistent installation base surface by the transverse tooth thickness measurement mechanism is the transverse tooth thickness value of benchmark, and CNC 3-dimensional digital measuring instrument reaches consistent gear teeth curved surface.
By processing method of the present invention, the large steamboat of production in enormous quantities, can be issued to desirable engagement at correct locating distance, need by adjusting, can not realize arbitrary bull wheel and arbitrary steamboat installation engagement running.Further promote the change of small mode number spiral bevel gear process technology.
The casing of gear is installed, is guaranteed the accuracy of its gear locating distance, also can implement modification method, the locating distance that makes casing that gear is installed reaches requirement, satisfies the matching requirements of pick-off gear.
Main point of the present invention is that the benchmark of measuring take installation base surface as transverse tooth thickness carries out the transverse tooth thickness measurement to processed gear.And the applying three-dimensional digital measuring apparatus measures processed gear teeth face, and the 3-dimensional digital measuring instrument that adopts in the present embodiment is the P26 full-automatic numerical control measuring center of German Klingelnberg company.
Take one group of Gear Processing as example,
1) respectively bull wheel and steamboat being carried out the transverse tooth thickness measurement take installation base surface as benchmark, is the transverse tooth thickness value of benchmark by the consistent installation base surface of transverse tooth thickness measurement mechanism control;
As shown in Figure 7, calculate measurement ball and measurement ball to the installation base surface size.
Z
Greatly=37, Z
Little=9, interaxial angle δ=90 °
m
Modulus=1.387 β
Helical angle=35 ° of α
Profile angle=20 °
At first, calculate this measuring tooth thickness, reference for installation to measuring the ball size,
Bull wheel:
Measure ball d=φ 1.75mm
Measure ball to the installation base surface size
A
1=22.25mm
B
1=14.40mm
Steamboat:
Measure ball size d=φ 1.75mm
Measure ball to the installation base surface size
A
2=11.75mm
B
2=5.296mm
2). to the test of large steamboat processing tooth surface error, analysis, revise machined parameters with the 3-dimensional digital measuring instrument, reach the consistent gear teeth flank of tooth in the error range;
That is, adopt Full Automatic CNC 3-dimensional digital measuring instrument, the size wheel flank of tooth is carried out three-dimensional measurement, and draw grid chart: (Figure 11 ~ Figure 14).
In above-mentioned 2 enforcements, control size wheel transverse tooth thickness uniformity, and gear teeth tooth surface shape uniformity adopt domestic four-axle linked 125 millimeters numerical control gear milling machines to carry out the batch machining of large steamboat.The machining tool that adopts will guarantee machining accuracy.
3), flank engagement contact zone, the back lash of the gear processed are confirmed.
By above step, present embodiment has reached predeterminated target, in the large steamboat of processing, under correct locating distance, can reach the engagement of arbitrary bull wheel and arbitrary steamboat, reaches running requirements.
Claims (4)
1. produce interchangeable small mode number spiral bevel gear or little modulus hypoid gear processing method in enormous quantities for one kind, it is characterized in that described method comprises the steps:
Respectively bull wheel and steamboat being carried out the transverse tooth thickness measurement take installation base surface as benchmark, is the transverse tooth thickness value of benchmark by the consistent installation base surface of transverse tooth thickness measurement mechanism control;
To the test of large steamboat processing tooth surface error, analysis, revise machined parameters with the 3-dimensional digital measuring instrument, reach the consistent gear teeth flank of tooth in the error range;
Flank engagement contact zone, back lash to the gear processed are confirmed.
2. the as claimed in claim 1 interchangeable small mode number spiral bevel gear of a kind of production in enormous quantities or little modulus hypoid gear processing method, it is characterized in that, transverse tooth thickness measurement mechanism in the described step 1) comprises guide rail, described guide rail is provided with guide rail slide block one and the guide rail slide block two that can move forward and backward, described guide rail slide block one is provided with the table pole socket, erect on the described table pole socket table bar chi is arranged, described table bar chi is provided with the table bar that can move up and down along table bar chi, described table bar links to each other with dial gauge or digital display rule with replaceable measurement ball, be equipped with and accurately locate on the described guide rail slide block two, rotate the workbench of tested gear, this workbench is for being used for measuring the workbench of bull wheel, replaceable for being used for measuring the workbench of steamboat, be provided with fixing positioning seat in the middle of described guide rail slide block one and the guide rail slide block two, be provided with the activity space of putting into slip gauge A between described positioning seat and the described table pole socket, described measurement mechanism also comprises the slip gauge B that is positioned on the workbench, measure bull wheel be pitch cone angle greater than 45 ° gear in, need to change workbench for measuring the workbench of bull wheel, this moment, the size of described slip gauge A was identical to the distance of gear centre with the transverse tooth thickness measurement point of tested gear, and the size of described slip gauge B is identical to the distance of gear bottom with the transverse tooth thickness measurement point of tested gear; Measure steamboat be pitch cone angle less than 45 ° gear in, need to change workbench for measuring the workbench of steamboat, this moment, the size of described slip gauge A was identical to the distance of gear bottom with the transverse tooth thickness measurement point of tested gear, and the size of described slip gauge B is identical to the distance of gear centre with the transverse tooth thickness measurement point of tested gear; The size of described measurement ball matches with the transverse tooth thickness of the gear of surveying.
3. the as claimed in claim 1 interchangeable small mode number spiral bevel gear of a kind of production in enormous quantities or little modulus hypoid gear processing method, it is characterized in that described step 2) in, first the theoretical flank of tooth is calculated, by the Survey Software gauge head flank of tooth is measured, and compare with the theoretical flank of tooth and to print the tooth surface error value, and draw out flank of tooth grid chart, can judge easily, objectively gear teeth cutting situation by the flank of tooth grid chart that the tooth surface error value is drawn, and by revising the cutting parameter of lathe, cutter etc., guarantee that the flank of tooth reaches satisfied, qualified requirement.
4. the as claimed in claim 1 interchangeable small mode number spiral bevel gear of a kind of production in enormous quantities or little modulus hypoid gear processing method, it is characterized in that in the described step 3), when the back lash is confirmed, compress the large steamboat locating distance of rolling inspection machine error, and proofread and correct locating distance with slip gauge.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104028850A (en) * | 2014-06-13 | 2014-09-10 | 重庆机床(集团)有限责任公司 | Automatic tooth aligning mechanism for large-sized gear hobbing machine and tooth aligning method thereof |
| CN107283002A (en) * | 2017-08-15 | 2017-10-24 | 四川建安工业有限责任公司 | Bore hypoid gear mill teeth positioning measurer and mill teeth method |
| CN114378375A (en) * | 2021-12-17 | 2022-04-22 | 盐城市金洲机械制造有限公司 | Intelligent high-precision gear combined machining center based on big data |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104028850A (en) * | 2014-06-13 | 2014-09-10 | 重庆机床(集团)有限责任公司 | Automatic tooth aligning mechanism for large-sized gear hobbing machine and tooth aligning method thereof |
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| CN107283002A (en) * | 2017-08-15 | 2017-10-24 | 四川建安工业有限责任公司 | Bore hypoid gear mill teeth positioning measurer and mill teeth method |
| CN114378375A (en) * | 2021-12-17 | 2022-04-22 | 盐城市金洲机械制造有限公司 | Intelligent high-precision gear combined machining center based on big data |
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Address after: Taizhou City, Zhejiang province 318025 town Huangyan District Court Gao Yang Cun Patentee after: Zhejiang Feng Li intelligent Polytron Technologies Inc Address before: 318025 Taizhou Gao Yang Industrial Zone, Huangyan, Zhejiang Patentee before: Zhejiang Fore Machinery & Electronic Co., Ltd. |
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