CN208866526U - A kind of fixture for axis tooth class product gear hobbing process - Google Patents
A kind of fixture for axis tooth class product gear hobbing process Download PDFInfo
- Publication number
- CN208866526U CN208866526U CN201821379930.2U CN201821379930U CN208866526U CN 208866526 U CN208866526 U CN 208866526U CN 201821379930 U CN201821379930 U CN 201821379930U CN 208866526 U CN208866526 U CN 208866526U
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- Prior art keywords
- axis
- class product
- tooth class
- axis tooth
- fixture
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Abstract
The utility model discloses a kind of fixtures for axis tooth class product gear hobbing process, it include: drive seat, if top has center guide hole and the dry-pick tooth around the center guide hole, wherein, the axis increment face location fit for pulling out tooth Yu the axis tooth class product is used for drive shaft tooth class product；And first is top, is arranged in the center guide hole, and the second center taper hole location fit, for carrying out centralized positioning to axis tooth class product；Wherein, the central axis of the drive seat, the central axis of axis tooth class product and the second top central axis three coaxially collinearly arrange.The fixture of the utility model can guarantee that the precision of Gear Processing, Gear Processing stable accuracy meet design of gears requirement；Realize clamping, release movement；It is driven by the top hydraulic compression axis increment face of lathe second, reduces design difficulty；And to drive fixture structure simple, at low cost for the end face；The product processing that different gear parameters may be implemented, has and promotes the use value well.
Description
Technical field
The utility model relates to engineering goods shaft gear processing tool design fields, are specifically related to a kind of applied to axis tooth
The fixture of class product gear hobbing process.
Background technique
As country is to the raising of automobile exhaust emission standard and the development of automobile market, product transformation upgrading updates
The replacement is unavoidable.Therefore structure specialities are inevitably on the one hand had in product transformation escalation process, set to fixture
Meter brings certain difficulty；On the other hand the mixture manufacturing of existing small lot multi items is just returned back out during successive generations of products
Mode.Only shorten to change and produce the time, processing efficiency could be improved, reduces processing cost, therefore the generalization of fixture is set, summary
Meter becomes focus of attention.
Automobile gearbox running part structure design in, it will usually there are three types of components be axis toothing, i.e., input shaft,
Output shaft, jackshaft.Fig. 1 is certain transmission input shaft design structure, and the product is according to traditional upper top positioning, elasticity
Ringfeder driving not only causes fixture rigidity deficiency, the obvious chatter mark of Gear shape process, fixture poor universality, clamp structure complexity, and
And there is also positioning phenomenon is crossed after hydraulic tensioning elastic expansion-sleeve, the drawbacks such as cause Gear Processing precision unstable.
Utility model content
The purpose of this utility model is that proposing a kind of fixture for axis tooth class product gear hobbing process, conventional brace is solved
Drawback, Set and Positioning when realizing to different size axis tooth class product gear hobbing process.
The utility model proposes a kind of fixture for axis tooth class product gear hobbing process, the first end of the axis tooth class product
With the first center taper hole, second end on axis increment face and axis increment face have the second center taper hole, feature
It is, the fixture includes: drive seat, if top has center guide hole and the dry-pick tooth around the center guide hole, wherein
The axis increment face location fit for pulling out tooth Yu the axis tooth class product is used for drive shaft tooth class product.
First is top, is arranged in the center guide hole, with the second center taper hole location fit, is used for axis tooth class product
Carry out centralized positioning；Wherein, the central axis of the drive seat, the central axis of axis tooth class product and the second top central axis three
Coaxial conllinear arrangement.
Further, the fixture further include further include compressed spring, wherein be additionally provided in the drive seat spring placement
Hole, the compressed spring are mounted in spring putting hole, and the compressed spring contacts with the first top bottom end, forces the first top
Point slides from inside to outside in center guide hole.
Further, the described first top middle part has thrust step, has between the center guide hole and spring putting hole
There is step surface, the step surface and the thrust step cooperate, for limiting the first top shift motion.
Further, the fixture further include further include blanking cover, wherein the blanking cover be located at spring putting hole one end and with
Compressed spring contact, and the blanking cover is fixedly connected with drive seat.
Further, the described first top bottom has first boss, has second boss, the compression on the blanking cover
One end cap of spring is in first boss, and another end cap of the compressed spring is in second boss.
Further, described second is top, coaxial with the first center taper hole and be bonded, used in carrying out to axis tooth class product
Heart positioning.
Further, the described first top top is higher by 0.5-5mm than pulling out the crest top land that pulls out of tooth.
Further, the fixture further include: clamp body offers cavity, the drive seat bottom on the clamp body
With positioning protrusion, the positioning protrusion is adapted with the cavity, and the drive seat is fixedly connected with clamp body.
Compared with prior art, the utility model has the beneficial effects that
1, this fixture is by setting drive seat and top, suitable for product end surface without the axis tooth class production of higher requirement
Product gear hobbing process has, it can be achieved that different size axis tooth class product Set and Positioning and promotes the use value well.Pass through the second top
Sharp working hydraulic pressure pressure makes to be embedded in by axis tooth class product end surface and pull out in tooth, and realization is tightened and driven, without using liquid under lathe
Cylinder pressure function, reduces design difficulty；With the central axis of axis tooth class product product, i.e. both ends centre bore or 60 ° of technique taper holes
Positioning, so that being overlapped by axis tooth class product with the platen centre of gyration, has fully ensured that Gear Processing precision, Gear Processing
Stablize.
2, this fixture versatility is very strong, fixture can be adjusted according to processed gear parameter and gear hobbing lathe cutter saddle stroke
The setting of body height.Modulus≤2.5, whole depth≤8.5mm can be met, gear width center is away from pulling out tooth face height≤150mm, quilt
Processing top circle diameter completes processing with tooth outer diameter ratio≤2.5, a feed is pulled out；When axis tooth class product parameters exceed above-mentioned model
When enclosing, can the appropriate adjustment amount of feeding or feed number to reduce cutting force improve processing stability.Therefore in shaft gear gear hobbing
It in processing, is laid out by production and processing line, can substantially reduce and change the production time.
3, this fixture is applicable in special construction product Set and Positioning, and there is the gear shaft of taper hole in end as illustrated in the drawing, if adopting
Clamp driving with traditional ringfeder: firstly, by the upward clamping of major part gear end, but will cause fixture rigidity is poor, processing vibration greatly,
It is not able to satisfy processing precision of products requirement.Secondly, cannot achieve the downward clamping of major part, that is, it cannot achieve clamped one time and complete gear hobbing
Processing.
And this fixture is used, it can be achieved that the downward clamping of major part gear end, the processing flank of tooth are completed without chatter mark, two grades of clamped one times
Gear hobbing process overcomes multiple problems of elastic expansion-sleeve driving.Therefore it in specialities structure gear hobbing process, can be greatly reduced
Fixture design difficulty improves processing efficiency.
4, this fixture solves ringfeder in conventional brace and clamps the drawbacks of driving generated positioning, and the processing accuracy of gear
Unstable defect.This fixture is with the positioning of axis tooth class product two ends centre bore, so that being returned by axis tooth class product and platen
Turn center coincidence, Gear Processing precision is more stable.
5, this fixture ensure that the precision of Gear Processing, Gear Processing stable accuracy meet design of gears requirement；Realize folder
Tightly, release acts；It is driven by the top hydraulic compression axis increment face of lathe second, reduces design difficulty；And end face driving folder
Lamps structure is simple, at low cost；The product processing of different gear parameters may be implemented.
6, this clamp structure is simple, easy to assembly, wherein and multiple components are standard component, only there are four nonstandard components, from
Without a large amount of process components, reduce cost of manufacture, has and promote the use value well.
Other than objects, features and advantages described above, there are also other purposes, feature and excellent for the utility model
Point.Below with reference to figure, the utility model is described in further detail.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 is the structural schematic diagram of processed axis tooth class product；
Fig. 2 is to be produced according to the fixture clamping axis tooth class for axis tooth class product gear hobbing process of an embodiment of the present invention
Structural schematic diagram when product；
Fig. 3 is to be shown according to the stereochemical structure of the fixture for axis tooth class product gear hobbing process of an embodiment of the present invention
It is intended to；
Fig. 4 is to be shown according to the sectional structure of the fixture for axis tooth class product gear hobbing process of an embodiment of the present invention
It is intended to；
Fig. 5 is to be cutd open according to drive seat in the fixture for axis tooth class product gear hobbing process of an embodiment of the present invention
Depending on structural schematic diagram；
Fig. 6 is the deployed configuration schematic diagram in Fig. 5 at I；
Fig. 7 is to be bowed according to drive seat in the fixture for axis tooth class product gear hobbing process of an embodiment of the present invention
Depending on structural schematic diagram；
Fig. 8 is top according in the fixture for axis tooth class product gear hobbing process of an embodiment of the present invention first
Structural schematic diagram；
Fig. 9 is the structure according to end cap in the fixture for axis tooth class product gear hobbing process of an embodiment of the present invention
Schematic diagram；
Figure 10 is the partial enlarged view of Fig. 3.
Description of symbols
1, clamp body；2, drive seat；3, first is top；4, compressed spring；5, blanking cover；6, axis tooth class product；7, the second top
Point；11, cavity；21, center guide hole；22, tooth is pulled out；23, spring putting hole；24, positioning protrusion；25, crest top land is pulled out；31, it positions
The conical surface；32, thrust step；33, first boss；51, second boss；61, axis increment face；62, the second center taper hole；63, first
Center taper hole.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Referring to Fig.1-10, in one embodiment, the fixture for axis tooth class product gear hobbing process of the utility model,
In, which has the first center taper hole 63, and 6 second end of axis tooth class product has axis increment face 61, described
There is the second center taper hole 62, the fixture includes: clamp body 1, drive seat 2, first top 3, compression bullet on axis increment face 61
Spring 4, blanking cover 5 and second top 7.
As Figure 2-Figure 5, the drive seat 2 is hollow cylinder, and the drive seat 2 is equipped with center guide hole 21, institute
It states first top 3 to be mounted in center guide hole 21, described first top 3 runs through the center guide hole 21, and described first top 3
Outer circle be adapted with center guide hole 21.Described first top 3 one end is equipped with orientational cone-shaped surface 31, the orientational cone-shaped surface 31 and first
Top 3 central axis is at 30 ° of angles；The orientational cone-shaped surface 31 can be bonded with by the second center taper hole 62 of axis tooth class product 6,
For carrying out axially position to axis tooth class product 6.
As shown in Fig. 2-Fig. 7, if the drive seat 2 is equipped with dry-pick tooth 22, axis tooth class far from the end face of 1 one end of clamp body
The axis increment face 61 of product 6 is bonded with the tooth 22 that pulls out, the first center taper hole 63 of axis tooth class product 6 and the second top 7 cooperation,
When the second top application of 7 pairs of axis tooth class product 6 pressure, pulls out tooth 22 and be bonded with the compression of axis increment face 61.When drive seat 2 is in gear-hobbing machine
Under the drive of bed when rotating, pull out tooth 22 axis tooth class product 6 can be carried out it is circumferentially positioned, and then with moving axis tooth class product 6
It rotates, gear hobbing lathe is facilitated to carry out gear hobbing process to axis tooth class product 6.
In one embodiment, as Figure 2-Figure 5, the drive seat 2 is equipped with spring putting hole 23, and the spring is placed
Hole 23 is coaxial with center guide hole 21 and is connected to, and the compressed spring 4 is placed in spring putting hole 23, the compressed spring 4 and
One top 3 bottom end contact, and first top 3 can be pushed to slide from inside to outside in center guide hole 21, it is top not to axis tooth second
When class product applies pressure, it is higher by the vertex of orientational cone-shaped surface 31 and pulls out crest top land 25, and then tooth 22 can pulled out not to axis tooth class
When product 6 carries out circumferentially positioned, that is, pull out before tooth 22 contacts with axis increment face 61, first top 3 first passes through the alignment of orientational cone-shaped surface 31
Second center taper hole 62 realizes axially position.
In one embodiment, as shown in figs 2-4, the described first top 3 middle part has thrust step 32, and the center is led
Step surface and the thrust step 32 between hole and spring putting hole cooperate, and for limiting the first top mobile formation, prevent
Only first top 3 skidded off from center guide hole 21.Wherein, the first top 3 bar portion outer circle is adapted with center guide hole 21, and is cooperated
Gap is 0.003-0.006mm, and meeting first top 3 can function free to slide and high accuracy positioning in center guide hole 21
Energy.
In one embodiment, as shown in Figure 2 and Figure 4, the blanking cover 5 is mounted on 23 one end of spring putting hole, and if passing through
Blanking cover 5 is fixedly connected by a dry screw with drive seat 2, the blanking cover 5 and 4 end thereof contacts of compressed spring, for compressed spring 4
Carry out axially position.
In one embodiment, as illustrated in figs. 8-9, described first top 3 has first boss 33 far from conical surface one end is determined,
There is second boss 51, the both ends of the compressed spring 4 are respectively fitted over first boss 33 and second boss 51 on the blanking cover 5
On, keep it not crooked in the operating condition.
In one embodiment, as shown in figure 3, the section for pulling out tooth 22 is in isosceles trapezoid, trapezoidal upper bottom edge width is about
0.3-0.5mm, trapezoidal upper bottom edge, which stretches to be formed, pulls out crest top land 25.It is described to pull out crest top land 25 under the second top 7 operating pressure
It is embedded in axis increment face 61, pulls out tooth 22 and tightened with axis increment face 61, so that axis increment face 61, which generates, is not more than 0.1mm depth
Plastic deformation；When platen rotation, axis tooth class product 6 also just and then rotates together.
In the present embodiment, the side for pulling out tooth 22 is in conical surface setting, and its purpose is to enhance to pull out 22 for intensity of tooth
22 service life of tooth is pulled out with raising.
In one embodiment, as shown in figs 2-4, described first top 3 vertex, which is higher by, pulls out the left side the about 2mm of crest top land 25
Reliable be advisable is placed when specific the raised area is with by axis tooth class 6 clamping of product in the right side.Such setting can pull out tooth 22 to axis tooth
Class product 6 carry out it is circumferentially positioned before, that is, pull out before crest top land 25 contacts with axis increment face 61, first pass through the alignment of orientational cone-shaped surface 31 second
Center taper hole 62 realizes axially position.Prevent first top 3 directly to axis tooth class 6 axially position of product when, product cannot be made
Central axis is in setting position.
In one embodiment, as shown in Figure 2 and Figure 4, the clamp body 1 is equipped with cavity 11, and 2 lower part of drive seat has positioning
The positioning protrusion 24 of protrusion 24, the drive seat 2 is placed in the cavity 11 using H7/h6 cooperation, and will be driven by bolt
Seat 2 is fixedly connected with clamp body 1.Also there are several location holes on the clamp body 1, pass through location hole and screw fastener, institute
Clamp body 1 is stated to connect with gear hobbing lathe.
It in one embodiment, is 3-6 times to be self-possessed by axis tooth class product 6, work pressure in the operating pressure of compressed spring 4
The too big meeting of power is so that lathe second top 7 acts on the pressure reduction on axis tooth, the too small product after will lead to processing of operating pressure
It cannot be detached from crest top land 25 is pulled out, product is caused to be not easy to remove.
In one embodiment, the material of the drive seat 2 uses tool steel T10A material, and hardness is controlled in HRC55-58,
Achieve the effect that wear-resisting and preferable toughness.
The process of the fixture clamping axis tooth class product of the utility model is as follows:
First, by several location holes on clamp body 1, fixture is connect with gear hobbing lathe.
Second, axis tooth class product 6 is directly placed in drive seat 2, by the second center taper hole 62 and first top 3 pairs
Together, while by the first center taper hole 63 with second top 7 be aligned, make axis tooth class product 6 central axis and it is first top, second
Line between top is coaxial.
Third, by control machine tool program operation, lathe second top 7 is in folding process to the formation of axis tooth class product 6
Positioning, i.e., on 6 center line of axis tooth class product and lathe, line coincident between first top 3, to ensure that radial runout of gear ring and machine
Bed the centre of gyration with one heart, Gear Processing stable accuracy.
4th, during lathe second top 7 pushes, first second top 7 conical surface is bonded with the axis tooth conical surface,
Secondary, the lower centre bore of axis tooth class product 6 is bonded with the lower top conical surface of fixture, and the first top 3 outer circle is adapted cunning with center guide hole 21
It is dynamic to move down, if the axis increment face 61 of most rear axle tooth class product 6 contacts with dry-pick crest top land 25 and is formed lesser plastic deformation, from
And realize the purpose that axis tooth class product 6 drives with lathe worktable rotary.
5th, after process finishing, press lathe stop button, top 7 automated backhaul of lathe second, axis tooth class product at this time
6 are jacked up under the stretching, extension elastic force effect of compressed spring 4 by first top 3, i.e., 6 axis increment face of axis tooth class product and pull out crest top land 25
It is detached from.Axis tooth class product 6 is then removed, the complete operation of axis tooth gear hobbing process can be completed.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of fixture for axis tooth class product gear hobbing process, the first end of the axis tooth class product have the first center taper hole,
Second end is with having the second center taper hole on axis increment face and axis increment face, which is characterized in that the fixture includes:
Drive seat, if top have center guide hole and the dry-pick tooth around the center guide hole, wherein it is described pull out tooth with it is described
The axis increment face location fit of axis tooth class product is used for drive shaft tooth class product；And
First is top, is arranged in the center guide hole, with the second center taper hole location fit, is used to carry out axis tooth class product
Centralized positioning；
Wherein, the central axis of the drive seat, the central axis of axis tooth class product and the second top central axis three are coaxially conllinear
Arrangement.
2. the fixture according to claim 1 for axis tooth class product gear hobbing process, which is characterized in that further include compression bullet
Spring, wherein spring putting hole is additionally provided in the drive seat, the compressed spring is mounted in spring putting hole, the compression
Spring contacts with the first top bottom end, forces first top to slide from inside to outside in center guide hole.
3. the fixture according to claim 2 for axis tooth class product gear hobbing process, which is characterized in that described first is top
Middle part has thrust step, has step surface, the step surface and the thrust between the center guide hole and spring putting hole
Step cooperation, for limiting the first top shift motion.
4. the fixture according to claim 2 for axis tooth class product gear hobbing process, which is characterized in that it further include blanking cover,
Wherein, the blanking cover is located at spring putting hole one end and contacts with compressed spring, and the blanking cover is fixedly connected with drive seat.
5. the fixture according to claim 4 for axis tooth class product gear hobbing process, which is characterized in that described first is top
Bottom has first boss, has second boss on the blanking cover, an end cap of the compressed spring is described in first boss
Another end cap of compressed spring is in second boss.
6. the fixture according to claim 1 for axis tooth class product gear hobbing process, which is characterized in that second top
Point, it is coaxial with the first center taper hole and be bonded, for carrying out centralized positioning to axis tooth class product.
7. the fixture according to claim 1 for axis tooth class product gear hobbing process, which is characterized in that described first is top
Top be higher by 0.5-5mm than pulling out the crest top land that pulls out of tooth.
8. the fixture according to claim 1 for axis tooth class product gear hobbing process, which is characterized in that further include fixture
Body, wherein offer cavity on the clamp body, the drive seat bottom has a positioning protrusion, the positioning protrusion with it is described
Cavity is adapted, and the drive seat is fixedly connected with clamp body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821379930.2U CN208866526U (en) | 2018-08-24 | 2018-08-24 | A kind of fixture for axis tooth class product gear hobbing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821379930.2U CN208866526U (en) | 2018-08-24 | 2018-08-24 | A kind of fixture for axis tooth class product gear hobbing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208866526U true CN208866526U (en) | 2019-05-17 |
Family
ID=66465774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821379930.2U Expired - Fee Related CN208866526U (en) | 2018-08-24 | 2018-08-24 | A kind of fixture for axis tooth class product gear hobbing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208866526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749733A (en) * | 2022-04-15 | 2022-07-15 | 索特传动设备有限公司 | Machining clamp for gear flexible manufacturing system |
-
2018
- 2018-08-24 CN CN201821379930.2U patent/CN208866526U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749733A (en) * | 2022-04-15 | 2022-07-15 | 索特传动设备有限公司 | Machining clamp for gear flexible manufacturing system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 |
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| CF01 | Termination of patent right due to non-payment of annual fee |