CN207309501U - Positioning core axle for the processing of aluminium casting housing - Google Patents
Positioning core axle for the processing of aluminium casting housing Download PDFInfo
- Publication number
- CN207309501U CN207309501U CN201721080550.4U CN201721080550U CN207309501U CN 207309501 U CN207309501 U CN 207309501U CN 201721080550 U CN201721080550 U CN 201721080550U CN 207309501 U CN207309501 U CN 207309501U
- Authority
- CN
- China
- Prior art keywords
- positioning
- processing
- housing
- aluminium casting
- core axle
- 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.)
- Expired - Fee Related
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- Jigs For Machine Tools (AREA)
Abstract
A kind of positioning core axle for the processing of aluminium casting housing is the utility model is related to, the top of mandrel body is positioning section, and positioning section is connected as a single entity with changeover portion, fixed platform and centration axis successively, and through hole is provided with fixed platform.The utility model is using design basis and the unified principle of technological datum, the positioner of Design Orientation mandrel Position Design benchmark and a positioning pin realizes that housing substep clamping is processed, reduce positioning cumulative errors, it is accurate work piece positioning, reliable, be conducive to improve finishing precision, can preferably ensure the concentricity requirement of holes.
Description
Technical field
It the utility model is related to mechanical processing auxiliary device, more particularly to a kind of locating core for the processing of aluminium casting housing
Axis.
Background technology
Aluminium casting shell structure is complicated, and working position is various and dimensional accuracy is higher, such as size essence in gearbox part
Degree, the higher bearing hole of the accuracy of form and position, bush hole, shift fork hole, motor hole, dowel hole etc..So designed in shell structure
When have to consider its craftsmanship, including casting manufacturability, processing technology, detection, assembling, maintenance process.In order to position
And raising productivity convenient and reliable with clamping, reduce clamping times, reduction accumulated error to the greatest extent in processing.But some shells
Body is needed due to function, it is necessary to substep clamping, such as wear-resisting, the aluminium casting housing generally in transmission axis connection for transmission shaft
The design of C positions increase anti-wearing liner A（As shown in Figure 1）, and the interior hole machined of bushing A must add again after housing C is assembled to
Work.Since transmission shaft needs the Internal hole positioning of bearing hole B and bushing A, bushing A endoporus and the concentricity of transmission shafts bearing bore B are wanted
Ask very stringent, if concentricity is unsatisfactory for requiring, influence product function, or even the bending and oil sealing oil leak of axis can be caused,
Under serious conditions, splined driveshaft can be caused not install.Traditional shell part processing is the positioning using plane and two pits
Mode.That is, with a plane（Or use three or four coplanar points）And a straight pin D or rhombus pin
To limit the six of workpiece spatial degrees of freedom, workpiece is set to obtain a correct position.Then protected by clamp system by workpiece
Hold this position.But in the case of design basis and technological datum are skimble-scamble, then the concentricity of holes is extremely difficult to design
It is required that seriously affect processing progress and product quality.
The content of the invention
The utility model realizes the requirement positioned completely in view of the above-mentioned problems, a kind of improved processing and positioning device of offer,
Make workpiece that there is accurate position relative to lathe, cutter in fixture, make the Working position one in fixture with a collection of part
Cause property is good, meets that processing Kong Weiyu design basises hole reaches the requirement of holes concentricity.
The utility model realizes above-mentioned purpose using following technical scheme.The positioning core axle processed for aluminium casting housing,
Including mandrel body, the top of the mandrel body is positioning section, the positioning section successively with changeover portion, fixed platform and centering
Axis is connected as a single entity, and through hole is provided with the fixed platform.
Further, the diameter of the positioning section is engaged with the internal diameter of the bearing hole of housing.
Further, the positioning section and centration axis coaxial line.
Further, the fixed platform is connected by bolt with clamp body.
The utility model using design basis and the unified principle of technological datum, Design Orientation mandrel Position Design benchmark and
The positioner of one positioning pin realizes that housing substep clamping is processed, and reduces positioning cumulative errors, accurate work piece positioning, reliable,
Be conducive to improve finishing precision, can preferably ensure the concentricity requirement of holes.
Brief description of the drawings
Fig. 1 is the cross-sectional view of aluminium casting housing；
Fig. 2 is the structure diagram of the utility model；
Fig. 3 is the schematic diagram of the utility model use state；
In figure：A. bushing, B. bearing holes, C. housings；1. mandrel body, 11. positioning sections, 12. changeover portions, 13. fixations are flat
Platform, 14. centration axis, 2. clamp bodies, 3. positioning pins.
Embodiment
In conjunction with drawings and examples, the utility model is described in further detail.Referring to Fig. 1 to Fig. 3, for aluminium casting shell
The positioning core axle of body processing, including mandrel body 1, the top of mandrel body 1 are positioning section 11, positioning section 11 successively with changeover portion
12nd, fixed platform 13 and centration axis 14 are connected as a single entity, and through hole is provided with fixed platform 13.The diameter of positioning section 11 and housing C
The internal diameter of bearing hole B be engaged.Positioning section 11 and 14 coaxial line of centration axis.Fixed platform 13 is connected by bolt and clamp body 2
Connect.
The endoporus of the utility model device secondary process anti-wearing liner A, to ensure the quality of the interior hole machined.For extension
The sub-assembly processing of housing, take using housing C in large end face as positioning surface, the side of positioning is realized with positioning pin 3 and mandrel body 1
Formula.When being processed on the table, in order to preferably reach requirement on machining accuracy, in the processing anti-wearing liner A for needs
Hole and the bearing hole B for having concentricity requirement, position bearing hole B by mandrel body 1.The utility model applies design basis
Unified principle, reduces position error with technological datum, solves in former technique and is unable to reach concentricity using positioning pin
It is required that the problem of, it is therefore prevented that the quality problems that causing splined driveshaft can not assemble occur.The utility model passes through mandrel body 1
Positioning section 11 and 14 both ends of centration axis positioned, be equipped with the faying face of mandrel body 1 and clamp body 2 centration axis 14 with
Clamp body 2 positions, and equally distributed four screws are connected with clamp body 2 in fixed platform 13.The utility model causes housing C zero
Part radially, axially being limited with the free degree that is pivoted on mandrel body 1, due to accurate work piece positioning, reliable, has
Precision is finished beneficial to improving, can preferably ensure the concentricity requirement of holes.
Claims (4)
1. for the positioning core axle of aluminium casting housing processing, including mandrel body, it is characterised in that the top of the mandrel body
For positioning section, the positioning section is connected as a single entity with changeover portion, fixed platform and centration axis successively, is provided with the fixed platform
Through hole.
2. the positioning core axle according to claim 1 for the processing of aluminium casting housing, it is characterised in that the positioning section
Diameter is engaged with the internal diameter of the bearing hole of housing.
3. it is according to claim 1 for aluminium casting housing processing positioning core axle, it is characterised in that the positioning section with
Centration axis coaxial line.
4. the positioning core axle according to claim 1 for the processing of aluminium casting housing, it is characterised in that the fixed platform
It is connected by bolt with clamp body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721080550.4U CN207309501U (en) | 2017-08-28 | 2017-08-28 | Positioning core axle for the processing of aluminium casting housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721080550.4U CN207309501U (en) | 2017-08-28 | 2017-08-28 | Positioning core axle for the processing of aluminium casting housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207309501U true CN207309501U (en) | 2018-05-04 |
Family
ID=62432225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721080550.4U Expired - Fee Related CN207309501U (en) | 2017-08-28 | 2017-08-28 | Positioning core axle for the processing of aluminium casting housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207309501U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714836A (en) * | 2021-08-30 | 2021-11-30 | 重庆顺多利机车有限责任公司 | High-precision alloy shell hole aligning machining system and method |
| CN114800056A (en) * | 2022-04-30 | 2022-07-29 | 徐德富 | Method for machining and mounting high-form-position precision part |
-
2017
- 2017-08-28 CN CN201721080550.4U patent/CN207309501U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714836A (en) * | 2021-08-30 | 2021-11-30 | 重庆顺多利机车有限责任公司 | High-precision alloy shell hole aligning machining system and method |
| CN114800056A (en) * | 2022-04-30 | 2022-07-29 | 徐德富 | Method for machining and mounting high-form-position precision part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180504 Termination date: 20210828 |