CN102528486A - Tooling for processing inner hole key slot of bevel wheel - Google Patents
Tooling for processing inner hole key slot of bevel wheel Download PDFInfo
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- CN102528486A CN102528486A CN2012100255251A CN201210025525A CN102528486A CN 102528486 A CN102528486 A CN 102528486A CN 2012100255251 A CN2012100255251 A CN 2012100255251A CN 201210025525 A CN201210025525 A CN 201210025525A CN 102528486 A CN102528486 A CN 102528486A
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- alignment pin
- gear
- frock
- inner hole
- key slot
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Abstract
The invention discloses a tooling for processing an inner hole key slot of a bevel wheel; the upper surface of a bottom plate is provided with a groove; the groove is internally provided with a driving gear locating pin and a driven gear locating pin which are arranged at an interval; the upper surface of the bottom plate is provided with a driving gear axial compression device and a driven gear axial compression device; the driving gear axial compression device is arranged around the driving gear locating pin; the driven gear axial compression device is arranged around the driven gear locating pin; and the upper surface of the bottom plate is also provided with a locating device which is inserted into a gear groove. The tooling can be used for locating and clamping a bevel gear to be processed, so that the requirement for the processing accuracy of the position where the center of the inner hole key slot of the bevel wheel is opposite to the center of the corresponding gear can be guaranteed.
Description
Technical field
The present invention relates to helical gear inner hole key slot processing technique field, particularly a kind of frock of helical gear inner hole key slot processing.
Background technology
At machine industry, gear is the designed toothform precision requirement that a high accuracy product, particularly some hard gears all will reach it through high-precision numerically controlled tooth grinding machine.Especially some helical gears, not only profile of tooth has quite high required precision, and also there is very high position accuracy demand at the keyway center to profile of tooth in the endoporus.For example my company is a pair of Z=47 on the scrap cutter machine equipment made of an enterprise, Mn=8, α=20 ° the left and right helical gear that revolves; Like Fig. 1; Helical gear 1 is circumferentially fixing through key piece and cutter shaft 2, and cutterhead 3 is circumferentially fixing through key piece and cutter shaft 2, through key piece connected mode; Cutter shaft keyway positional precision and helical gear, tool rest keyway positional precision have determined same cutter shaft upper knife groove and profile of tooth mutual alignment precision, form its cutter crack of tool rest up and down by the engagement of gear pair.
On above-mentioned scrap cutter machine equipment; There is one in the driving gear specification requirement: corresponding gear teeth centerline deviation on keyway center line and the datum level≤± 0.02mm, there is one in the driven gear specification requirement: corresponding teeth groove centerline deviation on keyway center line and the datum level≤± 0.02mm.Gear in the of this sort requirement of our company is common (like bilateral scissors, flying shear, scrap cutter etc.); But can meet the requirements of seldom through existing processing mode; Existing processing mode makes the centre deviation value of the gear teeth and keyway all greater than 0.25, finally when assembling, is solved by technical staff's agreed formula through the actual measurement departure.Once when the similar gear of bilateral scissors apparatus processing under C-MARK expert's guidance; Profile of tooth half correct grinding back processes keyway earlier to finished product; Numerically controlled tooth grinding machine semi-finishing grinding tooth shape again, measure side-play amount through three-dimensional coordinate instrument, again through numerically controlled tooth grinding machine correction grinding side-play amount.So repeated multiple times up and down numerically controlled tooth grinding machine finally be machined to finished product and reach pattern requirement.Not only cost of manufacture is high to adopt this mode, and the cycle is long, and general Gear Processing factory is difficult to satisfy such requirements of making.
Summary of the invention
To above-mentioned technical problem; The object of the present invention is to provide a kind of frock of helical gear inner hole key slot processing; Through frock of the present invention processed helical gear is positioned and clamping, can guarantee the requirement on machining accuracy of gear inner hole key slot center and corresponding gear teeth center relative position.
The technical scheme that realizes the object of the invention is following:
The frock of helical gear inner hole key slot processing; The upper surface of base plate is provided with groove; The compartment of terrain is provided with driving gear alignment pin and driven gear alignment pin in groove, and the upper surface of base plate is provided with axial hold down gag of driving gear and the axial hold down gag of driven gear, the axial hold down gag of driving gear be centered around the driving gear alignment pin around; The axial hold down gag of driven gear be centered around the driven gear alignment pin around, also be provided with the positioner that is inserted in the gear tooth slot on the upper surface of base plate.
Adopted such scheme; The compartment of terrain is provided with driving gear alignment pin and driven gear alignment pin in groove; Driving gear and the driven gear Y on base plate be can limit to the free degree (gear radially), and the center of driving gear and driven gear and the central lines of groove made.The upper surface of base plate is provided with axial hold down gag of driving gear and the axial hold down gag of driven gear, can make driving gear and driven gear Z on base plate obtain restriction to the free degree of (gear shaft to).Also be provided with the positioner that is inserted in the gear tooth slot on the upper surface of base plate, through positioner can to helical gear along base plate X to the free degree limit.
In sum, at first, the present invention utilizes the groove of base plate, prismatic pin to cooperate with the ball alignment pin, and the locate mode of formation face, point and line has solved helical gear can't be used face, point and point location at flank of tooth position a difficult problem.Secondly, frock of the present invention makes driving gear and driven gear with the engagement locate mode, can eliminate some uncertain factors in design, processing, the assembling process, makes the precision after the relative position of gear pair keyway more can satisfy assembling.
With gear testing result on three-dimensional coordinate instrument of frock of the present invention processing, two keyway center lines are respectively driving gear with corresponding gear teeth disalignment on the datum level: 0.01625mm; 0.0127mm, driven gear: 0.03795mm, 0.03755mm.
From the value that detects, driving gear is compared greater than 0.25 value without the frock mismachining tolerance with prior art and is had greatly improved, and has surmounted the specification requirement of 0.02mm in the driving gear.Though result and specification requirement that driven gear detects have certain error, compare greater than 0.25 value without the frock mismachining tolerance with prior art and have greatly improved, because the driven gear location is engagement locatees, this precision can satisfy the required precision after assembling in addition.
Description of drawings
Fig. 1 is the cutter shaft of scrap cutter machine equipment in the prior art and the installation diagram of gear;
Fig. 2 is the three-dimensional structure diagram of frock of the present invention;
Fig. 3 is the axonometric drawing of invention frock bottom surface;
Fig. 4 is the profile of one embodiment of the present invention;
Fig. 5 is the profile of another embodiment of the present invention;
In the accompanying drawing, 1 is helical gear, and 2 is cutter shaft, and 3 is cutterhead;
10 is base plate, and 11 is groove, and 12 is the driving gear alignment pin, and 13 is the driven gear alignment pin, and 14 is pressing plate; 141 is the hole, and 15 is support column, and 16 is stud, and 17 is nut, and 18 is the ball alignment pin; 19 is eccentric bushing, and 20 is liner plate, and 21 is driving gear, and 22 is driven gear.
The specific embodiment
With reference to Fig. 2 to Fig. 5, the frock of helical gear inner hole key slot processing of the present invention, the upper surface of base plate 10 is provided with groove 11, and this groove 11 has run through the upper surface and the lower surface of base plate 10, and groove 11 is a rectangular channel.
The compartment of terrain is provided with driving gear alignment pin 12 and driven gear alignment pin 13 in groove 11, in the clamping process, the latter half of driving gear alignment pin 12 is inserted in the groove 11, and the first half of driving gear alignment pin 12 is inserted in the helical gear axis hole.The assembling of driven gear alignment pin 13 also is like this.Through driving gear alignment pin 12 and driven gear alignment pin 13, can limit driving gear and the driven gear Y on base plate to the free degree (gear radially), and make the center of driving gear and driven gear and the central lines of groove 11.Driving gear alignment pin 12 is prismatic pin and/or straight pin with driven gear alignment pin 13; The preferred prismatic pin of the present invention, the prismatic pin has lightweight advantage, and assembling and dismounting are all more convenient; And the two ends of prismatic pin have certain tapering, are convenient to play positioning action more.
The upper surface of base plate 10 is provided with axial hold down gag of driving gear and the axial hold down gag of driven gear; Through axial hold down gag of driving gear and the axial hold down gag of driven gear, can make driving gear and driven gear Z on base plate obtain restriction to the free degree of (gear shaft to).The axial hold down gag of driving gear be centered around driving gear alignment pin 12 around, the axial hold down gag of driven gear be centered around driven gear alignment pin 13 around.Axial hold down gag of driving gear and the axial hold down gag of driven gear include three hold down gags; Three hold down gags are arranged on the same circumference of base plate 10 upper surfaces equably; Be convenient to make driving gear alignment pin 12 to be positioned at the center of the axial hold down gag of driving gear, driven gear alignment pin 13 is positioned at the center of the axial hold down gag of driven gear.Each hold down gag comprises pressing plate 14, support column 15 and device for exerting.One end of pressing plate 14 is supported on the upper end of support column 15, and the lower end of support column 15 is supported on the upper surface of base plate 10, and an end of device for exerting passes 141 backs, hole that are provided with on the pressing plate 14 and is connected with base plate.Hole 141 on the pressing plate is a mounting hole, so that the length of adjustment pressing plate 14 1 ends on the helical gear axial end.Device for exerting comprises stud 16 and nut 17, and nut 17 is connected with an end of stud 16, and the other end of stud 16 is connected with base thread.
The structure of the device for exerting of axial hold down gag of driving gear and the axial hold down gag of driven gear also is not limited to above-mentioned embodiment; For example can also form by supporting seat, pressing plate and screw; Supporting seat is fixed on the base plate; Pressing plate is rotatably connected on the supporting seat through pin, and screw is connected on the pressing plate, and supporting seat is provided with and is used for the screw that cooperates with screw thread.
Also be provided with the positioner that is inserted in the gear tooth slot on the upper surface of base plate 10, through positioner can to helical gear along base plate X to the free degree limit.In the present invention; Positioner can be separately a ball alignment pin 18; This positioner is fixed on the base plate with the mode of pin-and-hole location on ball location pin handle and the base plate; Can not adjust, can only be individually carry out spacingly to a kind of gear of size, its positioning accuracy is processed like no high precision apparatus can be very inaccurate.Therefore, positioner also can be made up of eccentric bushing 19 and ball alignment pin 18, and eccentric bushing 19 is packed in the axis hole that is provided with on the base plate; Ball alignment pin 18 is fixed in the eccentric bushing 19, and the positioner of this form can be adjusted, and promptly rotating eccentric sleeve 19; Thereby the ball alignment pin 18 that is positioned at eccentric bushing 19 ends also rotates thereupon; Because ball alignment pin 18 is not or not the center, end of eccentric bushing 19, therefore, ball alignment pin 18 is not to carry out gyration with the center of eccentric bushing 19; Thereby the position of ball alignment pin 18 is changed, with improve to helical gear along X to the positioning accuracy of the free degree.Diameter d=the 1.476m of ball alignment pin, wherein m is a module.Adopt the ball alignment pin of this diameter, its contact point is in the teeth groove constant chord, and it is centered close on the helical gear reference circle.
The positioner of above-mentioned two kinds of embodiments is basic only to the gear of same size, if the size of gear changes, then the present invention also solves through following scheme:
In the groove 11 of base plate 10, be embedded liner plate 20, the shape of liner plate 20 is identical with the shape of groove 11, through changing liner plate 20 thickness, makes the equal diameters of width dimensions and processed helical gear endoporus between liner plate.After setting up liner plate 20, positioner must be to form with the version that can regulate, and promptly positioner is made up of eccentric bushing 19 and ball alignment pin 18, and eccentric bushing 19 is packed in the axis hole that is provided with on the base plate, and ball alignment pin 18 is fixed in the eccentric bushing 19.After hole dimension changes in helical gear; Adjustment through liner plate 20 and positioner; Use the present invention can carry out clamping equally, and the frock that need not more renew, so the gear in the certain limit size that can satisfy of liner plate 20 and eccentric bushing 19; Make frock have versatility through adjustment liner plate and eccentric bushing, be beneficial to the manufacturing cost of practicing thrift frock.
Use frock process of the present invention following:
At first confirm a helical gear left side or dextrorotation direction, select a left side or right ball dowel hole for use, mounting and positioning device.The prismatic pin is packed in the groove 11 of driving gear 21 axis holes and base plate 10, the Y of driving gear is limited to (radially).Driving gear 21 carries out traversing in groove 11 with the prismatic pin, make corresponding teeth groove and ball alignment pin 18 tight cards, and the X of driving gear is limited to (horizontal direction).Locate through prismatic pin, ball alignment pin 18, base plate plane and groove and driving gear endoporus and teeth groove its six-freedom degree is placed restrictions on this moment, with the axial hold down gag of driving gear it axially fastened again.Equally driven gear 22 is used the prismatic column finger setting, and make driven gear and driving gear be engagement, utilize the axial hold down gag of driven gear to make it fastening.This engagement locate mode is to consider the in running order keyway of processing of gear pair, can eliminate some uncertain factors in design, processing, the assembling process, the precision when making the relative position of gear pair keyway more can satisfy work.
Claims (10)
1. the frock of helical gear inner hole key slot processing; It is characterized in that: the upper surface of base plate is provided with groove; The compartment of terrain is provided with driving gear alignment pin and driven gear alignment pin in groove; The upper surface of base plate is provided with axial hold down gag of driving gear and the axial hold down gag of driven gear; The axial hold down gag of driving gear be centered around the driving gear alignment pin around, the axial hold down gag of driven gear be centered around the driven gear alignment pin around, also be provided with the positioner that is inserted in the gear tooth slot on the upper surface of base plate.
2. the frock of helical gear inner hole key slot processing according to claim 1; It is characterized in that: be provided with liner plate in the said groove; Said positioner is made up of eccentric bushing and ball alignment pin, and eccentric bushing is packed in the axis hole that is provided with on the base plate, and the ball alignment pin is fixed in the eccentric bushing.
3. the frock of helical gear inner hole key slot processing according to claim 1, it is characterized in that: said positioner is the ball alignment pin.
4. the frock of helical gear inner hole key slot according to claim 1 processing, it is characterized in that: said positioner is made up of eccentric bushing and ball alignment pin, and eccentric bushing is packed in the axis hole that is provided with on the base plate, and the ball alignment pin is fixed in the eccentric bushing.
5. according to the frock of any described helical gear inner hole key slot processing of claim 2 to 4, it is characterized in that: the diameter d=1.476m of said ball alignment pin, wherein m is a module.
6. the frock of helical gear inner hole key slot processing according to claim 1 and 2, it is characterized in that: said driving gear alignment pin and driven gear alignment pin are the prismatic pin.
7. the frock of helical gear inner hole key slot processing according to claim 1 and 2, it is characterized in that: said driving gear alignment pin and driven gear alignment pin are straight pin.
8. the frock of helical gear inner hole key slot processing according to claim 1 and 2; It is characterized in that: axial hold down gag of said driving gear and the axial hold down gag of driven gear include three hold down gags; Each hold down gag comprises pressing plate, support column and device for exerting; One end of pressing plate is supported on the upper end of support column, and the lower end of support column is supported on the upper surface of base plate, and an end of device for exerting passes the Kong Houyu base plate that is provided with on the pressing plate and connects.
9. the frock of helical gear inner hole key slot processing according to claim 8, it is characterized in that: the hole on the said pressing plate is a mounting hole.
10. the frock of helical gear inner hole key slot processing according to claim 8, it is characterized in that: said device for exerting comprises stud and nut, and nut is connected with an end of stud, and the other end of stud is connected with base thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210025525.1A CN102528486B (en) | 2012-02-07 | 2012-02-07 | Tooling for processing inner hole key slot of bevel wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210025525.1A CN102528486B (en) | 2012-02-07 | 2012-02-07 | Tooling for processing inner hole key slot of bevel wheel |
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| CN102528486A true CN102528486A (en) | 2012-07-04 |
| CN102528486B CN102528486B (en) | 2015-04-01 |
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| CN201210025525.1A Active CN102528486B (en) | 2012-02-07 | 2012-02-07 | Tooling for processing inner hole key slot of bevel wheel |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848231A (en) * | 2012-08-31 | 2013-01-02 | 深圳市大富科技股份有限公司 | Machine tool clamp and method for clamping work pieces |
| CN103692232A (en) * | 2013-11-29 | 2014-04-02 | 成都斯锐特钨钢刀具有限公司 | Holding device for circular cutters |
| CN103894861A (en) * | 2014-03-11 | 2014-07-02 | 中冶陕压重工设备有限公司 | Alignment device and method for machining strict phase-position key groove of gear inner hole |
| CN104772638A (en) * | 2015-05-05 | 2015-07-15 | 江苏亚美特齿轮有限公司 | Universal gear ring chamfering tool |
| CN104816177A (en) * | 2015-05-05 | 2015-08-05 | 江苏亚美特齿轮有限公司 | Special clamp for gear ring tooth germ cutting |
| CN105171473A (en) * | 2015-09-30 | 2015-12-23 | 河南飞龙(芜湖)汽车零部件有限公司 | Clamp for machining of dish-cover type parts |
| CN105881053A (en) * | 2016-06-01 | 2016-08-24 | 重庆市星极齿轮有限责任公司 | Fast fixing device for gears |
| CN107639309A (en) * | 2017-10-31 | 2018-01-30 | 河南柴油机重工有限责任公司 | A kind of centering helical gear flank of tooth teeth groove center positioning tool and processing method |
| CN109483301A (en) * | 2018-12-16 | 2019-03-19 | 广东星联精密机械有限公司 | A kind of five axis three-jaw positioning tools |
| CN109570638A (en) * | 2018-12-29 | 2019-04-05 | 綦江齿轮传动有限公司 | Hobbing method for processing of the jackshaft helical tooth to tooth |
| CN110369773A (en) * | 2019-07-30 | 2019-10-25 | 河南工程学院 | The method of accurate control inner hole key slot of bevel wheel and teeth portion or tooth socket central symmetry degree |
| CN110497146A (en) * | 2019-07-22 | 2019-11-26 | 西安交通大学 | A kind of claw pump rotor tooling, claw pump rotor mounting process |
| CN112872743A (en) * | 2021-01-13 | 2021-06-01 | 重庆齿轮箱有限责任公司 | Machining method for combined herringbone gear and single bevel gear with key groove in inner hole |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848231A (en) * | 2012-08-31 | 2013-01-02 | 深圳市大富科技股份有限公司 | Machine tool clamp and method for clamping work pieces |
| CN102848231B (en) * | 2012-08-31 | 2015-08-05 | 深圳市大富科技股份有限公司 | The method of jig and clamping workpiece |
| CN103692232A (en) * | 2013-11-29 | 2014-04-02 | 成都斯锐特钨钢刀具有限公司 | Holding device for circular cutters |
| CN103894861A (en) * | 2014-03-11 | 2014-07-02 | 中冶陕压重工设备有限公司 | Alignment device and method for machining strict phase-position key groove of gear inner hole |
| CN104772638A (en) * | 2015-05-05 | 2015-07-15 | 江苏亚美特齿轮有限公司 | Universal gear ring chamfering tool |
| CN104816177A (en) * | 2015-05-05 | 2015-08-05 | 江苏亚美特齿轮有限公司 | Special clamp for gear ring tooth germ cutting |
| CN105171473A (en) * | 2015-09-30 | 2015-12-23 | 河南飞龙(芜湖)汽车零部件有限公司 | Clamp for machining of dish-cover type parts |
| CN105881053A (en) * | 2016-06-01 | 2016-08-24 | 重庆市星极齿轮有限责任公司 | Fast fixing device for gears |
| CN107639309A (en) * | 2017-10-31 | 2018-01-30 | 河南柴油机重工有限责任公司 | A kind of centering helical gear flank of tooth teeth groove center positioning tool and processing method |
| CN109483301A (en) * | 2018-12-16 | 2019-03-19 | 广东星联精密机械有限公司 | A kind of five axis three-jaw positioning tools |
| CN109570638A (en) * | 2018-12-29 | 2019-04-05 | 綦江齿轮传动有限公司 | Hobbing method for processing of the jackshaft helical tooth to tooth |
| CN110497146A (en) * | 2019-07-22 | 2019-11-26 | 西安交通大学 | A kind of claw pump rotor tooling, claw pump rotor mounting process |
| CN110369773A (en) * | 2019-07-30 | 2019-10-25 | 河南工程学院 | The method of accurate control inner hole key slot of bevel wheel and teeth portion or tooth socket central symmetry degree |
| CN110369773B (en) * | 2019-07-30 | 2020-10-16 | 河南工程学院 | Method for accurately controlling central symmetry degree of inner hole key groove and tooth part or tooth groove of helical gear |
| CN112872743A (en) * | 2021-01-13 | 2021-06-01 | 重庆齿轮箱有限责任公司 | Machining method for combined herringbone gear and single bevel gear with key groove in inner hole |
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