CN212043706U - Positioning device and processing device - Google Patents
Positioning device and processing device Download PDFInfo
- Publication number
- CN212043706U CN212043706U CN202020233542.4U CN202020233542U CN212043706U CN 212043706 U CN212043706 U CN 212043706U CN 202020233542 U CN202020233542 U CN 202020233542U CN 212043706 U CN212043706 U CN 212043706U
- Authority
- CN
- China
- Prior art keywords
- boss
- shaft
- positioning device
- clamping
- jaw
- 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
Links
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 3
- 230000006978 adaptation Effects 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Abstract
The utility model relates to the technical field of machining, and provides a positioning device and a machining device, wherein the positioning device comprises a three-jaw clamping mechanism, each clamping jaw is provided with an installation part and a clamping part, and a first boss, a second boss and a third boss are arranged on one side of the clamping part facing to the axle center of a main shaft; the first boss and the second boss are arranged at intervals to form a groove, the groove is used for accommodating the shaft collar, the first boss is used for supporting the shaft body along the radial direction, the second boss is used for supporting the shaft neck along the radial direction, and the third boss is used for supporting the end part of the shaft neck along the axial direction. The shaft to be processed is clamped through the positioning device, and the shaft clamping device can adapt to positioning and clamping of the shaft with the shaft collar at the clamping part, so that the processing quality and the production efficiency are ensured.
Description
Technical Field
The utility model belongs to the technical field of the machining technique and specifically relates to a positioner and processingequipment are related to.
Background
The machine tool main shaft is provided with a positioning device, such as a three-jaw positioning device, which is used for clamping a workpiece to be machined to rotate along with the main shaft so as to facilitate turning. However, the conventional three-jaw positioning device is only suitable for clamping workpieces with flat shapes, such as shafts with flat cylindrical outer surfaces, and for shafts with complicated structures, such as shafts with shaft rings and shaft shoulders at clamping positions, the conventional positioning device is difficult to clamp, and is easy to loosen if being clamped reluctantly, so that the processing is difficult.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a positioner to a processingequipment who has this positioner is provided.
In a first aspect, an embodiment of the present invention provides a positioning device, which is disposed at the end of a spindle, and comprises a three-jaw clamping mechanism for clamping a shaft to be processed, the shaft to be processed is provided with a shaft collar, the two sides of the shaft collar are respectively a shaft neck and a shaft body, wherein:
each clamping jaw of the three-jaw clamping mechanism is provided with an installation part and a clamping part, the installation part is connected to the end part of the main shaft, and a first boss, a second boss and a third boss are arranged on one side, facing the axis of the main shaft, of the clamping part;
the first boss and the second boss are arranged at intervals to form a groove, the groove is used for accommodating the shaft collar, one side, facing the axis of the main shaft, of the first boss is used for radially abutting against the shaft body, one side, facing the axis of the main shaft, of the second boss is used for radially abutting against the shaft neck, and the front end of the third boss is used for axially abutting against the end part of the shaft neck.
The utility model discloses positioner has following beneficial effect at least:
the shaft collar can be abducted and the two sides of the shaft collar are clamped through the first boss and the second boss, and the end part of the shaft neck is positioned through the third boss, so that stable clamping of the shaft is guaranteed, looseness is avoided, and the processing quality and the production efficiency are guaranteed.
According to the utility model discloses a positioner of other embodiments, first boss orientation one side in main shaft axle center including can with the first arc surface of the laminating of outer cylinder face adaptation of axle body.
According to the utility model discloses a positioner of other embodiments, the second boss orientation one side of main shaft axle center including can with the second arc surface of the laminating of outer cylindrical surface adaptation of axle journal.
According to other embodiments of the present invention, the third boss and the second boss are spaced apart from each other to form a gap.
According to the utility model discloses a positioner of other embodiments, the tip of main shaft is offered and is used for connecting three-jaw fixture's each the mounting groove of clamping jaw, the clamping jaw can be followed the mounting groove slides.
According to other embodiments of the present invention, the positioning device further comprises a clamping jaw driving device and a connecting member, wherein the driving device comprises a driving element and a driving head for connecting the clamping jaw, and the driving head is located in the mounting groove; the clamping jaw is provided with a mounting hole, and the connecting piece penetrates through the mounting hole and can stretch into the mounting groove to be connected with the driving head.
According to the utility model discloses a positioner of other embodiments, drive element is the cylinder, the drive head is the telescopic link of cylinder.
In a second aspect, an embodiment of the present invention provides a processing apparatus, including the positioning apparatus of any one of the above embodiments.
The utility model discloses processingequipment has following beneficial effect at least:
the processing device clamps the shaft to be processed through the positioning device, and can adapt to positioning and clamping of the shaft with the shaft collar at the clamping part, so that the processing quality and the production efficiency are ensured.
Drawings
FIG. 1 is a schematic view of a shaft to be machined;
FIG. 2 is a schematic structural view of one embodiment of a positioning device and shaft of FIG. 1;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;
fig. 5 is a schematic view of a connection structure of one embodiment of the main shaft.
Detailed Description
The conception and the resulting technical effects of the present invention will be made clear and fully described below with reference to the accompanying embodiments, so that the objects, features and effects of the present invention can be fully understood. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, if an orientation description is referred to, for example, an orientation or positional relationship indicated by "up", "down", etc. is an orientation or positional relationship based on that shown in the drawings, it is only for convenience of description and simplification of description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the embodiments of the present invention, if a feature is referred to as being "provided" or "connected" to another feature, it can be directly provided or connected to the other feature or indirectly provided or connected to the other feature. In the description of the embodiments of the present invention, if "a plurality" is referred to, it means one or more, if "a plurality" is referred to, it is understood that two or more are not included, and if "first", "second", "third", etc., are referred to, it is understood that the technical features are distinguished, but not understood that relative importance is indicated or implied, or that the number of the indicated technical features is implicitly indicated, or that the precedence of the indicated technical features is implicitly indicated.
Fig. 1 is a schematic view of a shaft to be machined, fig. 2 is a schematic view of a positioning device and a structure of an embodiment of the shaft shown in fig. 1, fig. 3 is a front view of fig. 2, fig. 4 is a cross-sectional view taken along line a-a of fig. 3, and referring to fig. 1 to 4, the positioning device is arranged at an end of a main shaft 300 and includes a three-jaw clamping mechanism 200 for clamping the shaft 100 to be machined, as shown in fig. 1, a collar 101 is arranged on the shaft 100 to be machined, and a shaft journal 103 and a shaft body 102 are respectively arranged at two sides of the collar 101 to form an uneven outer surface, if a front end of the shaft needs to be machined, a position of the collar 101 arranged on the shaft needs to be clamped, and the conventional three-jaw positioning structure is. Each jaw 210 of the three-jaw clamping mechanism 200 of the present embodiment has a mounting portion 211 and a clamping portion 212, the mounting portion 211 is connected to the end of the spindle 300, and a first boss 213, a second boss 214, and a third boss 215 are provided on the clamping portion 212 on the side facing the axis of the spindle 300; the first boss 213 and the second boss 214 are spaced to form a groove 220, the groove 220 is used for accommodating the collar 101, one side of the first boss 213 facing the axis of the spindle 300 is used for radially abutting against the shaft body 102, one side of the second boss 214 facing the axis of the spindle 300 is used for radially abutting against the shaft neck 103, and the front end of the third boss 215 is used for axially abutting against the end of the shaft neck 103 or abutting against a shaft shoulder formed at the shaft neck 103, so that the clamping jaw 210 of the three-jaw clamping mechanism 200 of the embodiment can realize abdicating of the collar 101 and clamping of two sides of the collar 101 through the first boss 213 and the second boss 214, and realize positioning of the end of the shaft neck 103 through the third boss 215, thereby ensuring stable clamping of the shaft, avoiding looseness, and ensuring processing quality and processing efficiency.
The specific dimensions, the spacing distance, etc. of the first boss 213, the second boss 214, and the third boss 215 on the clamping jaw 210 may be set according to the structure of the specific shaft 100 to be machined, for example, the spacing between the first boss 213 and the second boss 214 forms a groove 220, and the width along the axial direction thereof may be determined according to the specific dimensions of the collar 101 on the shaft 100 to be machined. The heights of the first boss 213 and the second boss 214 are respectively determined by the diameters of the shaft journal 103 and the shaft body 102 on both sides of the hand ring on the shaft 100 to be processed. The distance between the third projection 215 and the second projection 214 is determined by the length of the journal 103 on the side of the collar 101 on the shaft 100 to be machined.
One side of first boss 213 towards main shaft 300 axle center includes the first arc surface 216 that can laminate with the outer cylinder face adaptation of axle body 102, consequently can make the atress even when supporting axle body 102 to can be to axle body 102 along circumference application of force, thereby can have certain radial limiting displacement to the axle 100 of treating processing, the radius of this arc surface sets up according to the external diameter of the axle body 102 of the axle 100 of treating processing, the arc surface of first boss 213 can laminate axle body 102 surface during.
One side of the second boss 214 facing the axis of the spindle 300 comprises a second arc surface 217 which can be fitted with the outer cylindrical surface of the journal 103, so that the bearing force can be uniform when the journal 103 is abutted, and the force can be applied to the journal 103 along the circumferential direction, so that the shaft 100 to be processed can have a certain radial limiting effect. The radius of the arc surface is set according to the outer diameter of the journal 103 of the shaft 100 to be machined, and the arc surface of the first boss 213 can be attached to the outer surface of the journal 103.
The end of the journal 103 is provided with a chamfer 104, the position where the second boss 214 abuts against the journal 103 does not include the chamfer 104, the third boss 215 and the second boss 214 are arranged at intervals to form a gap 230, and the width of the gap 230 is not less than the extension length of the chamfer 104 in the axial direction.
Fig. 5 is a schematic view of a connection structure of an embodiment of the spindle 300, and referring to fig. 1 and 5, an end of the spindle 300 is provided with a mounting groove 310 for connecting each clamping jaw 210 of the three-jaw clamping mechanism 200, and the clamping jaw 210 can slide along the mounting groove 310, so that the clamping jaw can be opened or clamped. Specifically, the positioning device further includes a driving device (not shown) for the clamping jaw 210 and a connecting member (not shown), the driving device (not shown) includes a driving element and a driving head for connecting the clamping jaw 210, and the driving head is located in the mounting groove 310; the clamping jaw 210 is provided with a mounting hole 218, and a connecting piece (not shown) passes through the mounting hole 218 and can extend into the mounting groove 310 to be connected with the driving head. The drive element of this embodiment is the optional cylinder, and the drive head is the telescopic link of cylinder, therefore cylinder drive telescopic link is flexible can drive clamping jaw 210 and slide along mounting groove 310, perhaps can adopt conventional pneumatic main shaft 300's connected mode, through the motion of opening and shutting of pneumatic drive three-jaw fixture 200.
The embodiment of the utility model provides a processingequipment (not shown) is still provided, including the positioner that the aforesaid died at any time. The shaft to be processed is clamped through the positioning device, and the shaft clamping device can adapt to positioning and clamping of the shaft with the shaft collar at the clamping part, so that the processing quality and the production efficiency are ensured.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Claims (8)
1. The utility model provides a positioning device, its characterized in that sets up at the main shaft tip, includes three-jaw fixture for the axle of centre gripping treating processing, be provided with the axle collar on the axle of treating processing, the both sides of axle collar are axle journal and axle body respectively, wherein:
each clamping jaw of the three-jaw clamping mechanism is provided with an installation part and a clamping part, the installation part is connected to the end part of the main shaft, and a first boss, a second boss and a third boss are arranged on one side, facing the axis of the main shaft, of the clamping part;
the first boss and the second boss are arranged at intervals to form a groove, the groove is used for accommodating the shaft collar, one side, facing the axis of the main shaft, of the first boss is used for radially abutting against the shaft body, one side, facing the axis of the main shaft, of the second boss is used for radially abutting against the shaft neck, and the front end of the third boss is used for axially abutting against the end part of the shaft neck.
2. The positioning device as set forth in claim 1, wherein a side of said first boss facing the axis of said spindle includes a first circular arc surface adapted to fit an outer cylindrical surface of said shaft.
3. The positioning device as set forth in claim 2, wherein a side of said second boss facing said spindle axis includes a second arcuate surface adapted to engage an outer cylindrical surface of said journal.
4. The positioning device of claim 3, wherein the third boss and the second boss are spaced apart to form a gap.
5. The positioning device according to any one of claims 1 to 4, wherein an installation groove for connecting each clamping jaw of the three-jaw clamping mechanism is formed at an end of the main shaft, and the clamping jaw can slide along the installation groove.
6. The positioning device as set forth in claim 5 further comprising a jaw drive and a connector, said drive comprising a drive element and a drive head for connecting said jaws, said drive head being located in said mounting slot; the clamping jaw is provided with a mounting hole, and the connecting piece penetrates through the mounting hole and can stretch into the mounting groove to be connected with the driving head.
7. The positioning device of claim 6, wherein the drive element is a pneumatic cylinder and the drive head is a telescoping rod of the pneumatic cylinder.
8. A processing apparatus, characterized in that: comprising a positioning device according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020233542.4U CN212043706U (en) | 2020-02-28 | 2020-02-28 | Positioning device and processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020233542.4U CN212043706U (en) | 2020-02-28 | 2020-02-28 | Positioning device and processing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212043706U true CN212043706U (en) | 2020-12-01 |
Family
ID=73534065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020233542.4U Expired - Fee Related CN212043706U (en) | 2020-02-28 | 2020-02-28 | Positioning device and processing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212043706U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115041977A (en) * | 2022-06-22 | 2022-09-13 | 四川航天长征装备制造有限公司 | Clamp for clamping rotary thin-wall parts |
| CN115121829A (en) * | 2022-07-04 | 2022-09-30 | 中国第一汽车股份有限公司 | Quick centering device for shaft parts |
-
2020
- 2020-02-28 CN CN202020233542.4U patent/CN212043706U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115041977A (en) * | 2022-06-22 | 2022-09-13 | 四川航天长征装备制造有限公司 | Clamp for clamping rotary thin-wall parts |
| CN115121829A (en) * | 2022-07-04 | 2022-09-30 | 中国第一汽车股份有限公司 | Quick centering device for shaft parts |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212043706U (en) | Positioning device and processing device | |
| CN101367130A (en) | Overlength straight pipeline member cutting method | |
| CN104043850A (en) | Floating clamp | |
| CN108422358A (en) | A kind of fixture with the machined surface function of protecting workpiece | |
| CN105014451A (en) | Wedge pushing type two-way spindle chuck of double-head car | |
| CN2468655Y (en) | Quick action and pneumatic type clamping means | |
| CN216940104U (en) | Clamping grinding spindle structure | |
| CN214769034U (en) | Tool and machine tool for machining rotary target workpiece | |
| CN205968249U (en) | A modular fixture for wall thickness is less than 2mm casing | |
| CN211867197U (en) | Internal combustion engine thin-wall bushing clamping device | |
| KR101980241B1 (en) | Workpiece fixing apparatus for lathe chuck | |
| CN214185300U (en) | Positioning device of high-precision lathe | |
| CN213135844U (en) | Clamp for step shaft structure and machine tool | |
| CN109262004A (en) | A kind of fan-shaped soft pawl of quick-changing type | |
| CN210115474U (en) | Clamping and positioning device for internal star wheel lathe | |
| CN210703620U (en) | Axostylus axostyle anchor clamps of quick location angle | |
| CN207914615U (en) | A kind of Internal hole positioning machining tool | |
| CN203156176U (en) | Lathe clamp for machining gear | |
| CN210360873U (en) | Grinding machine clamp for rotor parts | |
| CN215200756U (en) | Lathe fixture | |
| CN205394306U (en) | Grinding miller and processing equipment | |
| CN216326702U (en) | Crankshaft oil groove machining clamp | |
| CN219598898U (en) | Double-shaft driven device for excircle polishing | |
| CN209754640U (en) | Clamp for machining cylinder sleeve on lathe | |
| CN219275190U (en) | Numerical control machine tool and clamping device thereof |
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: 20201201 |