CN106513870A - Gear grinding core shaft clamp - Google Patents
Gear grinding core shaft clamp Download PDFInfo
- Publication number
- CN106513870A CN106513870A CN201710038986.5A CN201710038986A CN106513870A CN 106513870 A CN106513870 A CN 106513870A CN 201710038986 A CN201710038986 A CN 201710038986A CN 106513870 A CN106513870 A CN 106513870A
- Authority
- CN
- China
- Prior art keywords
- section
- core shaft
- clamping
- machined
- workpiece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention provides a gear grinding core shaft clamp which is integrally a stepped shaft. The gear grinding core shaft clamp sequentially comprises a thread section, a workpiece clamping section, a positioning shaft shoulder and a clamping ball head from top to bottom. The diameter of the thread section and the diameter of the clamping ball head are smaller than the diameter of the workpiece clamping section and the diameter of the positioning shaft shoulder. A plurality of axial grooves are machined in the outer circumferential face of the workpiece clamping section. In the above technical scheme, due to the fact that the multiple axial grooves are machined in the outer circumferential face of the workpiece clamping section, the contact area between an inner hole of a workpiece and a gear grinding core shaft can be reduced, and clamping is facilitated; and meanwhile, through the groove structure, the core shaft can have enough expansion space during heating, an inner hole of a product is prevented from being extruded, and accordingly detaching is convenient. Meanwhile, the multiple axial grooves are machined in the outer circumferential face of the workpiece clamping section, and accordingly the weight of the core shaft can be reduced to a certain degree.
Description
Technical field
The present invention relates to a kind of grinding teeth core shaft fixture.
Background technology
Its position for being used for clamping workpiece of the roll flute mandrel provided by prior art is typically designed to cylinder, due to workpiece
Endoporus and roll flute mandrel be that small-gap suture coordinates, contact area between the two is big, and resistance is big, therefore clamping difficulty is larger；Its
Secondary, in grinding process, mandrel is heated and can produce enough expansions workpiece, so as to extruded product endoporus, causes dismounting difficult.Furthermore,
When workpiece belongs to macropore part, the diameter of mandrel is inevitable bigger, and the weight of mandrel will be greatly increased, and the weight of mandrel is added
What the weight of workpiece was directly approached lathe bears workpiece weight limit, causes lathe rigidity not enough, so as to increase machine bearing,
The loss of driving-chain etc..
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of grinding teeth core shaft fixture for being easy to clamping and dismounting workpiece.
To solve above-mentioned technical problem, the technical scheme is that：A kind of grinding teeth core shaft fixture, its generally ladder
Axle, include thread segment, clamping workpiece section, positioning shaft shoulder, clamping bulb from top to bottom successively, wherein thread segment and clamping bulb
Diameter is less than the diameter of clamping workpiece section and positioning shaft shoulder, and the outer peripheral face of the clamping workpiece section is machined with a plurality of axial recessed
Groove.
In above-mentioned technical proposal, as the outer peripheral face in clamping workpiece section is machined with a plurality of axial groove, thus can
The contact area between the endoporus and roll flute mandrel of workpiece is reduced, beneficial to clamping, while this groove structure can allow mandrel to exist
There are enough expansion spaces when being heated, it is to avoid extruded product endoporus, so as to convenient dismounting.Also, in the periphery of clamping workpiece section
Face is machined with a plurality of axial groove, moreover it is possible to mitigate the weight of mandrel to a certain extent.
Preferably, the outer peripheral face of the clamping workpiece section is symmetrically machined with the groove of four axial directions, makes clamping workpiece section
Cross section be in cross.
In order to mitigate the weight of mandrel, further, the outer peripheral face of the positioning shaft shoulder is equally symmetrically machined with four
The groove of axial direction, the cross section of the positioning shaft shoulder is equally in cross.
In order to mitigate the weight of mandrel, yet further, the section of the positioning shaft shoulder is in the pyramidal structure stood upside down.
Wherein, the angle of the taper is 54 °.
Description of the drawings
Fig. 1 is the roll flute core shaft structure schematic diagram in the embodiment of the present invention；
Schematic top plan views of the Fig. 2 for Fig. 1；
Reference is：
1 thread segment, 2 clamping workpiece section
3 positioning shaft shoulder, 4 clamping bulb.
Specific embodiment
For the ease of the understanding of those skilled in the art, the present invention is made further with accompanying drawing with reference to embodiment
It is bright, the content that embodiment is referred to not limitation of the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " is, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention and simplified description, rather than indicate or imply that the device or element of indication must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.In describing the invention, " multiple " are meant that two or two
More than, unless otherwise expressly limited specifically.In describing the invention, it should be noted that unless otherwise prescribed and limit,
Term " installation ", " being connected ", " connection " should be interpreted broadly, for example, it may be being mechanically connected or electrically connecting, or two
The connection of element inner segment, can be joined directly together, it is also possible to be indirectly connected to by intermediary, for the ordinary skill of this area
For personnel, the concrete meaning of the term can be understood as the case may be.
As shown in Figure 1, 2, the preferred embodiments of the present invention are：A kind of grinding teeth core shaft fixture, its generally multidiameter, from upper
Include thread segment 1, clamping workpiece section 2, positioning shaft shoulder 3, clamping bulb 4 under successively, wherein thread segment 1 and clamping bulb 4
Diameter is less than the diameter of clamping workpiece section 2 and positioning shaft shoulder 3, and the outer peripheral face of the clamping workpiece section 2 is machined with a plurality of axial
Groove.As preferred technical scheme, the groove of four axial directions can be symmetrically machined with the outer peripheral face of clamping workpiece section 2,
The cross section for making clamping workpiece section is in cross.
In above-mentioned technical proposal, as the outer peripheral face in clamping workpiece section 2 is machined with a plurality of axial groove, thus can
The contact area between the endoporus and roll flute mandrel of workpiece is reduced, beneficial to clamping, while this groove structure can allow mandrel to exist
There are enough expansion spaces when being heated, it is to avoid extruded product endoporus, so as to convenient dismounting.Also, in the periphery of clamping workpiece section 2
Face is machined with a plurality of axial groove, moreover it is possible to mitigate the weight of mandrel to a certain extent.
As shown in Figure 1, 2, in order to mitigate the weight of mandrel, the outer peripheral face of positioning shaft shoulder 3 is equally symmetrically machined with four
The groove of axial direction, makes the cross section of positioning shaft shoulder 3 equally in cross, and arranges the section of positioning shaft shoulder 3 in the cone for standing upside down
Shape structure, the angle of the taper is 54 °.
Above-described embodiment is the present invention preferably implementation, and in addition, the present invention can be realized with alternate manner,
On the premise of conceiving without departing from the technical program, any obvious replacement is within protection scope of the present invention.
In order to allow those of ordinary skill in the art more easily to understand improvements of the present invention relative to prior art, this
Some accompanying drawings of invention and description have been simplified, and for the sake of clarity, present specification is omitted some other units
Element, those of ordinary skill in the art should be aware that these elements for omitting also may make up present disclosure.
Claims (5)
1. a kind of grinding teeth core shaft fixture, it is characterised in that：Its generally multidiameter, includes thread segment from top to bottom successively（1）, work
Part clamping section（2）, positioning shaft shoulder（3）, clamping bulb（4）, wherein thread segment（1）With clamping bulb（4）Diameter be less than workpiece
Clamping section（2）And positioning shaft shoulder（3）Diameter, the clamping workpiece section（2）Outer peripheral face be machined with a plurality of axial groove.
2. grinding teeth core shaft fixture according to claim 1, it is characterised in that：The clamping workpiece section（2）Outer peripheral face pair
It is machined with the groove of four axial directions with claiming, makes clamping workpiece section（2）Cross section be in cross.
3. grinding teeth core shaft fixture according to claim 2, it is characterised in that：The positioning shaft shoulder（3）Outer peripheral face it is same
The groove of four axial directions, the positioning shaft shoulder are machined with symmetrically（3）Cross section equally be in cross.
4. grinding teeth core shaft fixture as claimed in any of claims 1 to 3, it is characterised in that：The positioning shaft shoulder（3）
Section in stand upside down pyramidal structure.
5. grinding teeth core shaft fixture according to claim 4, it is characterised in that：The angle of the taper is 54 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710038986.5A CN106513870A (en) | 2017-01-19 | 2017-01-19 | Gear grinding core shaft clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710038986.5A CN106513870A (en) | 2017-01-19 | 2017-01-19 | Gear grinding core shaft clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106513870A true CN106513870A (en) | 2017-03-22 |
Family
ID=58335746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710038986.5A Pending CN106513870A (en) | 2017-01-19 | 2017-01-19 | Gear grinding core shaft clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106513870A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4032881A1 (en) * | 1990-10-17 | 1992-04-23 | Sew Eurodrive Gmbh & Co | Aligning and clamping mandrel for gear blanks, etc. - has expanding collet to centre and clamp blank, with locking spring loaded rods for face support |
| JPH0531824U (en) * | 1991-10-04 | 1993-04-27 | 住友電気工業株式会社 | Work holder |
| RU2004392C1 (en) * | 1991-04-24 | 1993-12-15 | Idelevich Adolf Ya | Device for centering articles by splines |
| CN202861553U (en) * | 2012-09-06 | 2013-04-10 | 江麓机电集团有限公司 | Inflatable gear grinding clamp |
| CN204770986U (en) * | 2015-07-17 | 2015-11-18 | 株洲欧格瑞传动股份有限公司 | Car gearbox owner driven gear gerar grinding frock of slowing down |
| CN105345171A (en) * | 2015-12-06 | 2016-02-24 | 江麓机电集团有限公司 | Positioning and clamping device |
| CN205254273U (en) * | 2015-12-15 | 2016-05-25 | 浙江台玖精密机械有限公司 | Little interference high accuracy gear hobbing frock |
| CN206493003U (en) * | 2017-01-19 | 2017-09-15 | 衡山齿轮有限责任公司 | A kind of grinding teeth core shaft fixture |
-
2017
- 2017-01-19 CN CN201710038986.5A patent/CN106513870A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4032881A1 (en) * | 1990-10-17 | 1992-04-23 | Sew Eurodrive Gmbh & Co | Aligning and clamping mandrel for gear blanks, etc. - has expanding collet to centre and clamp blank, with locking spring loaded rods for face support |
| RU2004392C1 (en) * | 1991-04-24 | 1993-12-15 | Idelevich Adolf Ya | Device for centering articles by splines |
| JPH0531824U (en) * | 1991-10-04 | 1993-04-27 | 住友電気工業株式会社 | Work holder |
| CN202861553U (en) * | 2012-09-06 | 2013-04-10 | 江麓机电集团有限公司 | Inflatable gear grinding clamp |
| CN204770986U (en) * | 2015-07-17 | 2015-11-18 | 株洲欧格瑞传动股份有限公司 | Car gearbox owner driven gear gerar grinding frock of slowing down |
| CN105345171A (en) * | 2015-12-06 | 2016-02-24 | 江麓机电集团有限公司 | Positioning and clamping device |
| CN205254273U (en) * | 2015-12-15 | 2016-05-25 | 浙江台玖精密机械有限公司 | Little interference high accuracy gear hobbing frock |
| CN206493003U (en) * | 2017-01-19 | 2017-09-15 | 衡山齿轮有限责任公司 | A kind of grinding teeth core shaft fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170322 |