CN202278207U - Conical shaft tooling for processing excircle - Google Patents
Conical shaft tooling for processing excircle Download PDFInfo
- Publication number
- CN202278207U CN202278207U CN2011202986479U CN201120298647U CN202278207U CN 202278207 U CN202278207 U CN 202278207U CN 2011202986479 U CN2011202986479 U CN 2011202986479U CN 201120298647 U CN201120298647 U CN 201120298647U CN 202278207 U CN202278207 U CN 202278207U
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- CN
- China
- Prior art keywords
- conical surface
- ringfeder
- cone
- splined shaft
- inner conical
- Prior art date
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Abstract
The utility model provides a conical shaft tooling for processing an excircle, which comprises a spline shaft, a movable ejector sleeve and an expansion sleeve, wherein the spline shaft is provided with a first outer conical surface; the movable ejector sleeve is provided with a second outer conical surface; the movable ejector sleeve is sheathed at one end of the spline shaft and is connected with the spline shaft through spline fit; the expansion sleeve is cylindrical and is arranged on the outer rings of the spline shaft and the movable ejector sleeve; one end of the expansion sleeve is closed to form a joint part; the other end of the expansion sleeve is provided with a plurality of seams to form an elastic part; one end of the elastic part is provided with a first inner conical surface which can be matched with the first outer conical surface; the other end of the elastic part is provided with a second inner conical surface which can be matched with the second outer conical surface; and the more the first inner conical surface and the second inner conical surface approach to the end face of the expansion sleeve, the larger the inner diameters are. The conical shaft tooling for processing the excircle is of a concentric circle structure, and a pre-shrinking mode is adopted by the expansion sleeve, the convenience is ensured when clamping is performed by the tooling, the working efficiency is greatly increased, and simultaneously, the dimensional accuracy of a processed workpiece is also ensured.
Description
Technical field
The utility model relates to a kind of field of machining, particularly a kind of axis of cone frock that is used for processing excircles.
Background technology
The cylinder sleeve of producing engine with China is an example, and China cylinder manufacturing enterprise processing cylinder sleeve cylindrical all adopts axis of cone frock or liquid to mould the frock dual mode basically at present.
Traditional axis of cone frock is in order to guarantee the clamping workpiece condition, and the external diameter of frock must be less than the diameter of bore of workpiece, and is light to guarantee convenient mounting and clamping; But because the inconsistent frock that causes of two diameters contacts with workpiece to several line contacts, in process, produce skidding in order not make workpiece, locking pressure just should strengthen; General hydraulic working pressure should reach about 18MP, because operating pressure is big, workpiece is easy to the distortion of being risen; Restored because of the strain of material by workpiece after being laid down in operating pressure, thereby cause the geometrical variations of workpiece, it is big that form and position tolerance becomes; Be difficult to satisfy the dimensional requirement of workpiece; In order to guarantee the dimensional accuracy of product, can only guarantee the condition of work of peripheral milling with the mode that strengthens allowance, thereby restrict production in cylindrical grinder preface.
It is very little because of the amount of rising that traditional liquid is moulded frock, has only tens decimillimeters, big like frock and workpiece fit clearance; Processing back workpiece size error is also big, and fit clearance is little, the clamping workpiece difficulty; Production efficiency is low; And liquid moulds frock and has only 2 lines to contact with the workpiece tensioner, and overhanging portion is more, can not guarantee thin-wall workpiece morpheme size.
Comprehensive above two kinds of frocks all exist the clamping difficulty or ease of frock and workpiece and the contradiction of processing back workpiece size error size, and for thin-wall part, particularly outstanding.
The utility model content
The technical problem that the utility model will solve is to provide a kind of axis of cone frock that is used for processing excircles, and clamping is easy, requires the pressure of clamping less, can effectively improve dimensional accuracy and morpheme dimensional accuracy.
The technical problem that the utility model will solve is achieved in that a kind of axis of cone frock that is used for processing excircles, it is characterized in that: comprise
One splined shaft, the one of which end is provided with the connecting portion that is connected with lathe, and the other end is provided with external splines, is provided with one first male cone (strobilus masculinus) between this connecting portion and the external splines;
One movable top cover is set in an end of said splined shaft, and its outer end has an end cap, and the contiguous end caps in outer end is provided with one second male cone (strobilus masculinus), and inner internal diameter is provided with the internal spline that cooperates with said external splines, and the end cap center is provided with a piston rod connecting hole; And
One ringfeder; Said ringfeder is cylindric, is located at the outer ring of said splined shaft and movable top cover, and end sealing forms the joint portion; The other end is offered a plurality of seams and is formed elastic portion; One end of said elastic portion is provided with first inner conical surface that can cooperate with said first male cone (strobilus masculinus), and the other end is provided with second inner conical surface that can cooperate with said second male cone (strobilus masculinus), and first inner conical surface and second inner conical surface lean on the end internal diameter of ringfeder big more more.
The advantage of the utility model is: changed the structure of traditional axis of cone frock, adopted with the circle structure, ringfeder adopts pre-shrunk mode; Convenience when assurance is operated in clamping, the dimensional accuracy of also protecting processing back workpiece when having improved operating efficiency greatly is because the operating pressure of frock is very little; Get final product the tensioner workpiece, make it when cutting, workpiece does not spin; Machine the back release at workpiece, the resilience of workpiece is very little, thereby guarantees the morpheme size of bright processing work; And the movable top cover passes through the spline tight fit with splined shaft, and radially wobbling of the top cover that can take in sail improves machining accuracy.
Description of drawings
Combine embodiment that the utility model is further described with reference to the accompanying drawings.
Fig. 1 is the structural representation of the axis of cone frock of the utility model one embodiment.
Fig. 2 is a section structure sketch map of the ringfeder of the utility model one embodiment.
The specific embodiment
See also Fig. 1 to shown in Figure 2, be the structure of the utility model one embodiment, the axis of cone frock of this embodiment comprises a splined shaft 1, movable top cover 2 and one ringfeder 3.
One end of said splined shaft 1 is provided with the connecting portion 11 that is connected with lathe, and the other end is provided with external splines 12, is provided with one first male cone (strobilus masculinus) 13 between this connecting portion 11 and the external splines 12.Particularly, the connecting portion 11 of said splined shaft 1 can be a counter flange dish, so that be connected with the ring flange of lathe, the center of splined shaft 1 also is axially arranged with a piston rod connecting hole 15.
Said movable top cover 2 is set in an end of said splined shaft 1; Its outer end has an end cap 21; And the contiguous end cap in outer end 21 places are provided with one second male cone (strobilus masculinus) 24, and inner internal diameter is provided with the internal spline 22 that cooperates with said external splines 12, and end cap 21 centers are provided with a piston rod connecting hole 25.
Said ringfeder 3 is cylindric; Be located at the outer ring of said splined shaft 1 and movable top cover 2; And end sealing forms joint portion 31, and the other end is offered a plurality of seams 322 and formed elastic portion 32, and an end of said elastic portion 32 is provided with first inner conical surface 33 that can cooperate with said first male cone (strobilus masculinus) 13; The other end is provided with second inner conical surface 34 that can cooperate with said second male cone (strobilus masculinus) 24, and first inner conical surface 33 and second inner conical surface 34 lean on the end internal diameter of ringfeder 3 big more more.The outer ring at the place, two ends of said ringfeder 3 offers the ccontaining rubber o-ring 36 of difference in a cannelure 35, two cannelures 35 respectively.
Said splined shaft 1 also is connected through flat key 16 with said ringfeder 3, and said movable top cover 2 also is connected through flat key 26 with said ringfeder 3, so that splined shaft 1 overlaps 2 smoothly to ringfeder 3 transmission moments of torsion with moving the top.
The operation principle of the utility model: earlier the piston rod with the hydraulic gyration oil cylinder in the end cap of the movable top cover 2 of axis of cone frock and splined shaft 1 and the machine tool chief axis hole is connected; Ring flange with splined shaft 1 connecting portion 11 is fixedly connected with the ring flange of lathe simultaneously; Through the hydraulic gyration oil cylinder movable top cover 2 that end to ringfeder 3 is promoted; Through changing the relative position of said movable top cover 2 and ringfeder 3; Change the cooperation position of first male cone (strobilus masculinus) 13 and first inner conical surface 33 and the cooperation position of second male cone (strobilus masculinus) 24 and the secondth inner conical surface 34, reach the contraction or the spreading of ringfeder 3, thereby reach the clamping of workpiece or unclamp.The cooperation position of the cooperation position of first male cone (strobilus masculinus) 13 and first inner conical surface 33 and second male cone (strobilus masculinus) 24 and the secondth inner conical surface 34 relies on the middle part of ringfeder 3 more; The radial load that then imposes on ringfeder 3 is just big more; Because elastic portion 32 has certain elasticity; Thereby can be to being located at the workpiece application of force of ringfeder 3 outer rings, reaching the effect that workpiece is clamped, otherwise then unclamp.In addition; The big I that rises in advance of ringfeder 3 is controlled through this rubber o-ring 36, generally guarantees about 2MM, the clamping that the ellipse that guarantees to cause because of the material resilience in preceding working procedure still can be freely; The clamping ratio is easier to, also protects the dimensional accuracy of processing back workpiece when having improved operating efficiency greatly.Because the endoporus of workpiece and the external diameter of ringfeder 3 are with the footpath, contact-making surface is very big, so require very low to the operating pressure of hydraulic pressure; The general 1-2MP that only needs gets final product; Therefore machine the back release at workpiece, the resilience of workpiece is very little, thereby guarantees the morpheme size of bright processing work.
Claims (5)
1. an axis of cone frock that is used for processing excircles is characterized in that: comprise
One splined shaft, the one of which end is provided with the connecting portion that is connected with lathe, and the other end is provided with external splines, is provided with one first male cone (strobilus masculinus) between this connecting portion and the external splines;
One movable top cover is set in an end of said splined shaft, and its outer end has an end cap, and the contiguous end caps in outer end is provided with one second male cone (strobilus masculinus), and inner internal diameter is provided with the internal spline that cooperates with said external splines, and the end cap center is provided with a piston rod connecting hole; And
One ringfeder; Said ringfeder is cylindric, is located at the outer ring of said splined shaft and movable top cover, and end sealing forms the joint portion; The other end is offered a plurality of seams and is formed elastic portion; One end of said elastic portion is provided with first inner conical surface that can cooperate with said first male cone (strobilus masculinus), and the other end is provided with second inner conical surface that can cooperate with said second male cone (strobilus masculinus), and first inner conical surface and second inner conical surface lean on the end internal diameter of ringfeder big more more.
2. according to the described axis of cone frock that is used for processing excircles of claim 1, it is characterized in that: the outer ring at the place, two ends of said ringfeder offers a cannelure respectively, the ccontaining rubber o-ring of difference in two cannelures.
3. according to the described axis of cone frock that is used for processing excircles of claim 2, it is characterized in that: the connecting portion of said splined shaft is a counter flange dish, and the center of said splined shaft also is axially arranged with a piston rod connecting hole.
4. according to the described axis of cone frock that is used for processing excircles of claim 1, it is characterized in that: said splined shaft also is connected through flat key with said ringfeder.
5. according to the described axis of cone frock that is used for processing excircles of claim 1, it is characterized in that: said movable top cover also is connected through flat key with said ringfeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202986479U CN202278207U (en) | 2011-08-17 | 2011-08-17 | Conical shaft tooling for processing excircle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202986479U CN202278207U (en) | 2011-08-17 | 2011-08-17 | Conical shaft tooling for processing excircle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202278207U true CN202278207U (en) | 2012-06-20 |
Family
ID=46224393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202986479U Expired - Fee Related CN202278207U (en) | 2011-08-17 | 2011-08-17 | Conical shaft tooling for processing excircle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202278207U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495755A (en) * | 2013-09-27 | 2014-01-08 | 贵州凯星液力传动机械有限公司 | Machining clamp for outer wall of blind-hole thin-wall sleeve part and using method thereof |
-
2011
- 2011-08-17 CN CN2011202986479U patent/CN202278207U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495755A (en) * | 2013-09-27 | 2014-01-08 | 贵州凯星液力传动机械有限公司 | Machining clamp for outer wall of blind-hole thin-wall sleeve part and using method thereof |
| CN103495755B (en) * | 2013-09-27 | 2017-01-18 | 贵州凯星液力传动机械有限公司 | Machining clamp for outer wall of blind-hole thin-wall sleeve part and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20140817 |
|
| EXPY | Termination of patent right or utility model |