CN207326106U - Harmonic reducer flexible wheel processing tool - Google Patents

Harmonic reducer flexible wheel processing tool Download PDF

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Publication number
CN207326106U
CN207326106U CN201721146937.5U CN201721146937U CN207326106U CN 207326106 U CN207326106 U CN 207326106U CN 201721146937 U CN201721146937 U CN 201721146937U CN 207326106 U CN207326106 U CN 207326106U
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China
Prior art keywords
expansion
flexbile gear
mandrel
processing tool
harmonic reducer
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CN201721146937.5U
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Chinese (zh)
Inventor
陈绪勇
孙克
李翠翠
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Beijing Xinli Machinery Co Ltd
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Beijing Xinli Machinery Co Ltd
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Abstract

The utility model discloses a kind of harmonic reducer flexible wheel processing tool, including mandrel (1), expansion set (2) and nut (5), expansion set (2) is sleeved on mandrel (1), and nut (5) is installed on the end of expansion set (2) side of mandrel (1);It is characterized in that, the mandrel (1) is provided with the spacing shaft shoulder (1b), the interior shoulder that the spacing shaft shoulder (1b) is used for flexbile gear (4) coordinates and prevents flexbile gear (4) excessive compression expansion set (2), and the excessively expansion of expansion set (2) periphery is caused flexbile gear (4) off-dimension after processing;The expansion set (2) is elastic material or has elastic construction.The utility model is simple in structure, it is easy to process, can easily dismount flexbile gear, flexbile gear bottom bend will not be caused, flexbile gear overall radial dimension will not be caused to increase, it can realize that clamped one time mandrel repeats to process a collection of flexbile gear, improve the yield rate of flexbile gear, production cost is greatlyd save, improves the production efficiency more than 60% of product.

Description

Harmonic reducer flexible wheel processing tool
Technical field
It the utility model is related to technical field of processing equipment, and in particular to the process equipment of harmonic reducer flexible wheel.
Background technology
The fifties start, and harmonic speed reducer is since gearratio is big, small, light-weight, high transmission accuracy, return difference are small etc. Feature is widely used in the precision positioning such as mechanism and instrumentation of aerospace craft control system field, it is in thin-walled shell Property deformation on the basis of a kind of drive technology for growing up.
Flexbile gear is the key element of harmonic drive, and the quality of its dynamic property largely determines the property of its system Energy.Specifically can be referring to document【1】In analysis.
As described in Figure 1, flexbile gear is since it belongs to thin-wall part, and in transmission process, the moment is subject to reciprocal stress, so Its processing technology is required very stringent.It is to manufacture a mandrel to each flexbile gear in usual process, passes through interference fit Mandrel is penetrated into flexbile gear endoporus, then carries out that flexbile gear is cylindrical and gear hobbing process, this kind of method not only bad for dismounting flexbile gear, and Easily cause flexbile gear bottom bend, bottom is cracked in the process of running so as to cause flexbile gear, is made for this from easy to a line operator With with ensure flexbile gear performance perspective, designing a kind of new frock of flexbile gear is highly desirable.
Since harmonic reducer flexible wheel wall thickness and its internal diameter ratio are generally 1% or so, so flexbile gear production belongs to thin-walled Part is processed, in document【2】In mention six kinds on lathe process thin-walled parts methods, due to it is no limitation expansion set expansion work With, flexbile gear may be caused during by distending, flexbile gear overall radial dimension increase, be easy to cause processing after flexbile gear it is off size The phenomenon of lattice.
Document【3】A kind of spring chuck frock resilient sleeve mentioned, it is complicated, and will also be in cylindrical surface locating and machining Nail, and resilient sleeve will leave the gap of 0.3~0.5mm with work piece inner surface, and this kind of scheme is not suitable for processing internal diameter ruler very much The very little flexbile gear less than 40mm.
Document【4】Although propose a kind of Hydraulic Expanding Arbors for external gear processing, this kind of mandrel outer cylinder Thin-walled portion processing is inconvenient, virtually adds production cost.
List of documents:
Document【1】:The THE FREE VIBRATION ANALYSIS of Harmonic Gears flexbile gear,《Gear》, the 3rd phase of volume 13 in 1989, P6- 11;
Document【2】:The clamping method of thin-wall workpiece is processed on lathe,《Mechanical engineer》, the 5th phase in 2011, P121- 122;
Document【3】:New Thin-walled fixture designs,《Coal mine machinery》, 07 month the 7th phase of volume 35 in 2014, P40-42;
Document【4】:The Hydraulic Expanding Arbors processed for external gear,《Machine driving》, the 6th phase of volume 28 in 2004, P61、62、73。
Utility model content
The technical problems to be solved in the utility model is:
1st, existing flexbile gear processing tool, dismounting flexbile gear is inconvenient, and easily causes flexbile gear bottom bend, so as to cause soft Take turns the problem of bottom is cracked in the process of running;
2nd, document【2】In method, due to it is no limitation expansion set expansion effect, flexbile gear may be caused by distending process In, flexbile gear overall radial dimension increase, be easy to cause processing after flexbile gear off-dimension the problem of;
3rd, document【3】In spring chuck frock resilient sleeve, it is complicated, and also to be followed closely in cylindrical surface locating and machining, And resilient sleeve will leave the gap of 0.3~0.5mm with work piece inner surface, it is small that this kind of scheme is not suitable for processing internal diameter size very much In the flexbile gear of 40mm the problem of;
4th, document【4】Middle mandrel outer cylinder thin-walled portion processing is inconvenient, virtually adds asking for production cost Topic.
To reach above-mentioned purpose of utility model, technical solution is used by the utility model:A kind of harmonic wave is provided to subtract Fast device flexbile gear processing tool, including mandrel, expansion set and nut, expansion set are sleeved on mandrel, and nut is installed on the expansion set one of mandrel The end of side;The mandrel is provided with the spacing shaft shoulder, and the interior shoulder that the spacing shaft shoulder is used for flexbile gear coordinates and prevents flexbile gear excessive compression Expansion set, and the excessively expansion of expansion set periphery is caused flexbile gear off-dimension after processing;The expansion set is elastic material or has Elastic construction.
The shank including integrative-structure, outer cone face and head, outer cone face are provided with the mandrel successively from left to right The circular conical surface being tilted to the right;The spacing shaft shoulder is provided with the right end of outer cone face;The expansion set is provided with and the circular conical surface Coordinate inner conical surface, inner conical surface bottom be provided with for through mandrel center straight hole.
The back pieces groove that flexbile gear is moved back for pushing up is provided with the outer cone face lateral wall, back pieces groove is on conical surface portion lateral wall Uniformly it is provided with two.
The outer cone face is provided with for the through hole by screw, and expansion set is provided with the through hole correspondence position to be used for The threaded hole of mounting screw, screw are connected in threaded hole through through hole whorl, and screw is used to prevent flexbile gear from departing from mandrel.
Several dilatation joints for diametrically running through expansion set wall are uniformly provided with the expansion set, dilatation joint expands beneficial to expansion set Exhibition and contraction.
The dilatation joint is six.
The beneficial effects of the utility model are:
1st, expansion set can reduce automatically, coordinate back pieces groove easily to dismantle flexbile gear, will not cause flexbile gear bottom bend, flexbile gear Bottom will not cracking in the process of running, substantially increase the yield rate of flexbile gear;
2nd, mandrel (1) is provided with the spacing shaft shoulder, make expansion set outer circumferential surface can with flexbile gear inner surface radial direction gap 0.1mm with Under close contact, and flexbile gear will not be caused during by distending, the increase of flexbile gear overall radial dimension, flexbile gear size after processing It is qualified;
3rd, the utility model is simple in structure, easy to process, is also applied for the flexbile gear that processing internal diameter size is less than 40mm, without On cylindrical surface, locating and machining is followed closely, and the gap of 0.3~0.5mm will be left by being not required to resilient sleeve (expansion set) and flexbile gear inner surface;
4th, the utility model is simple in structure, easy to process, the problem of having saved production cost.
5th, compared to existing flexbile gear processing tool, without manufacturing mandrel one by one, production cost is greatlyd save;
6th, it can realize that clamped one time mandrel repeats to process a collection of flexbile gear, one line operator's centering flexbile gear of great convenience Time;
7th, the utility model processing technology is simple, convenient for disassembly and assembly, improves the production efficiency more than 60% of product.
Brief description of the drawings
Fig. 1 is 4 structure diagram of flexbile gear;
Fig. 2 is the utility model structure diagram (main sectional view);
Fig. 3 is the utility model structure diagram (left view);
Fig. 4 is 2 structure diagram of expansion set (main sectional view);
Fig. 5 is 2 structure diagram of expansion set (left view);
Fig. 6 is the utility model arrangement works view (being fixed with flexbile gear 4, main sectional view);
Fig. 7 is the utility model arrangement works view (being fixed with flexbile gear 4, left view);
Wherein, mandrel (1), back pieces groove (1a), the spacing shaft shoulder (1b), shank (1c), outer cone facial (1d), head (1e), Expansion set (2), center straight hole (2a), dilatation joint (2b), threaded hole (2c), inner conical surface (2d), screw (3), flexbile gear (4), nut (5)。
Embodiment
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings.The example of the embodiment exists Being shown in attached drawing, the embodiment being described with reference to the drawings only is exemplary, and is only used for explaining the utility model, rather than to this reality With new limitation.
The direction of the instructions such as term "front", "rear", "left", "right" described in the utility model and position relationship be based on Direction shown in the drawings and position relationship, only for the purposes of describing and simplifying description, do not indicate that or imply meaning device or The specific orientation that original paper must have, can not be not understood as the limitation to the utility model.
As shown in Fig. 2,3,6,7, the harmonic reducer flexible wheel processing tool, including mandrel 1, expansion set 2 and nut 5, expansion set 2 It is sleeved on mandrel 1, nut 5 is installed on the end of 2 side of expansion set of mandrel 1;The mandrel 1 is provided with spacing shaft shoulder 1b, limit The interior shoulder that position shaft shoulder 1b is used for flexbile gear 4 coordinates and prevents 4 excessive compression expansion set 2 of flexbile gear, and makes the excessively expansion of 2 periphery of expansion set 4 off-dimension of flexbile gear after into processing;The expansion set 2 is elastic material or has elastic construction.
Again as shown in Figure 4,5, the mandrel 1 from left to right successively including integrative-structure shank 1c, outer cone face 1d and Head 1e, outer cone face 1d are provided with the circular conical surface being tilted to the right;The spacing shaft shoulder 1b is provided with the right end of outer cone face 1d; The expansion set 2 is provided with coordinates inner conical surface 2d with the circular conical surface, and inner conical surface 2d bottoms are provided with for through the center of mandrel 1 Straight hole 2a.
The back pieces groove 1a that flexbile gear 4 is moved back for pushing up is provided with the outer cone face 1d lateral walls, back pieces groove 1a is in conical surface portion Two are uniformly provided with 1d lateral walls.
The outer cone face 1d is provided with to be provided with for the through hole by screw 3, expansion set 2 with the through hole correspondence position For the threaded hole 2c of mounting screw 3, screw 3 is connected in threaded hole 2c through through hole whorl, and screw 3 is used to prevent flexbile gear 4 Depart from mandrel 1.
Six dilatation joint 2b for diametrically running through expansion set wall are uniformly provided with the expansion set 2, dilatation joint 2b is beneficial to Expansion set 2 is extended and shunk.
Operation principle:The utility model utilizes 2 elastic telescopic principle of expansion set, and Fig. 4,5 are expansion set schematic diagram, swollen by promoting Cover 2 inner conical surface 2d increases so as to cause its it is cylindrical uniformly swell, realize that interporal lacuna is (in expansion set 2 and flexbile gear 4 in expansion set 2 and flexbile gear 4 Aperture is to gap setting in below 0.1mm) it is in close contact.
Assembling and application method:Expansion set 2 is loaded into mandrel 1, notices that the conical surface both during installation can coordinate, it is not necessary to Firmly extrude, then flexbile gear 4 will be installed, be slowly advanced untill it can not promote flexbile gear 4 to the left, due to flexbile gear in progradation 4 bottom surfaces are moved to the left together with the fitting of 2 right end of expansion set.As 2 inner conical surface of expansion set is gradually moved to the left on 1 male cone (strobilus masculinus) of mandrel, Expansion set 2 is cylindrical, and gradually increase is so as to be full of the gap of radial direction between expansion set 2 and flexbile gear 4, with having reached the mesh of swelling flexbile gear 4;Together When due to being provided with spacing shaft shoulder 1b on mandrel 1, it is therefore prevented that expansion set 2 excessively swells so as to cause showing for bore expansion in flexbile gear 4 As ensure that the processing dimension of flexbile gear 4, avoiding influence of the tension force to processing dimension;Nut 5 is screwed into mandrel 1 afterwards, really Protect it is axial in flexbile gear process do not move, screw 3 is then screwed into mandrel 1 and expansion set 2, it is ensured that expansion set 2 in process, soft Wheel 4 can rotate together with mandrel 1, pay attention to tightening when screwing in screw 3, can not be firmly excessive.
After the completion of working above, 1 left end of mandrel is loaded into lathe or gear-hobbing machine, the cylindrical bounce of centering mandrel 1 is in φ After 0.01, flexbile gear can be processed with top 1 left end of mandrel that withstands.
After the completion of 4 gear hobbing of part, screw 3 and nut piece 5 are first laid down, then utilizes two back pieces groove 1a on mandrel 1, so that it may Very easily expansion set 2 is laid down from mandrel 1.
The specification and drawings of the utility model are considered illustrative and not restrictive, on the utility model basis On, those skilled in the art are according to disclosed technology contents, it is not necessary to which performing creative labour can be to some of technologies Feature makes some and replaces and deform, within the protection scope of the present utility model.

Claims (6)

1. harmonic reducer flexible wheel processing tool, including mandrel (1), expansion set (2) and nut (5), expansion set (2) are sleeved on mandrel (1) on, nut (5) is installed on the end of expansion set (2) side of mandrel (1);It is characterized in that, mandrel (1) setting is limited The position shaft shoulder (1b), the interior shoulder that the spacing shaft shoulder (1b) is used for flexbile gear (4) coordinates and prevents flexbile gear (4) excessive compression expansion set (2), and makes The excessively expansion of expansion set (2) periphery causes flexbile gear (4) off-dimension after processing;The expansion set (2) is elastic material or has Elastic construction.
2. harmonic reducer flexible wheel processing tool according to claim 1, it is characterised in that the mandrel (1) from a left side to The right shank (1c) including integrative-structure, outer cone successively are facial (1d) and head (1e), and outer cone face (1d) is provided with to Right deviation Oblique circular conical surface;The spacing shaft shoulder (1b) is provided with the right end of outer cone facial (1d);The expansion set (2) is provided with and the circle Cone match inner conical surface (2d), inner conical surface (2d) bottom be provided with for through mandrel (1) center straight hole (2a).
3. harmonic reducer flexible wheel processing tool according to claim 2, it is characterised in that the outer cone facial (1d) is outside The back pieces groove (1a) that flexbile gear (4) is moved back for top is provided with side wall, back pieces groove (1a) is uniform on conical surface portion (1d) lateral wall It is provided with two.
4. harmonic reducer flexible wheel processing tool according to claim 2, it is characterised in that the outer cone facial (1d) is set It is equipped with and the spiral shell for mounting screw (3) is provided with the through hole correspondence position for the through hole by screw (3), expansion set (2) Pit (2c), screw (3) are connected in threaded hole (2c) through through hole whorl, and screw (3) is used to prevent flexbile gear (4) from departing from mandrel (1)。
5. harmonic reducer flexible wheel processing tool according to claim 2, it is characterised in that on the expansion set (2) uniformly Be provided with several diametrically run through expansion set wall dilatation joint (2b), dilatation joint (2b) be beneficial to expansion set (2) extend and shrink.
6. harmonic reducer flexible wheel processing tool according to claim 5, it is characterised in that the dilatation joint (2b) is six Bar.
CN201721146937.5U 2017-09-07 2017-09-07 Harmonic reducer flexible wheel processing tool Active CN207326106U (en)

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Application Number Priority Date Filing Date Title
CN201721146937.5U CN207326106U (en) 2017-09-07 2017-09-07 Harmonic reducer flexible wheel processing tool

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Application Number Priority Date Filing Date Title
CN201721146937.5U CN207326106U (en) 2017-09-07 2017-09-07 Harmonic reducer flexible wheel processing tool

Publications (1)

Publication Number Publication Date
CN207326106U true CN207326106U (en) 2018-05-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109482923A (en) * 2018-11-13 2019-03-19 东莞市国森科精密工业有限公司 A kind of harmonic wave flexbile gear gear hobbing hydraulic tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109482923A (en) * 2018-11-13 2019-03-19 东莞市国森科精密工业有限公司 A kind of harmonic wave flexbile gear gear hobbing hydraulic tool

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