CN211361513U - Clamp for down-the-hole drill finish turning of big end excircle - Google Patents
Clamp for down-the-hole drill finish turning of big end excircle Download PDFInfo
- Publication number
- CN211361513U CN211361513U CN201922453306.3U CN201922453306U CN211361513U CN 211361513 U CN211361513 U CN 211361513U CN 201922453306 U CN201922453306 U CN 201922453306U CN 211361513 U CN211361513 U CN 211361513U
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- CN
- China
- Prior art keywords
- mandrel
- lathe spindle
- hole drill
- clamp
- pull rod
- 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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Abstract
The utility model relates to an anchor clamps that down-the-hole bores finish turning major part excircle was used, mandrel in lathe spindle and locating lathe spindle, the both ends of mandrel are formed with recess one respectively, recess two, the built-in collet chuck that is used for the centre gripping work piece that is equipped with of recess one, the cover is equipped with the lock sleeve on the mandrel outside recess one, the one end of lock sleeve is connected and is fixed on the mandrel, the other end is pressed on the collet chuck, the lock sleeve passes through bearing connecting thread cover, two interpolations of recess are equipped with the pull rod, the other end of pull rod and a tip fixed connection of lathe spindle. The utility model provides a down-the-hole bores anchor clamps that finish turning major part excircle was used, control about the adjusting rod, control the removal of drive lock sleeve, change collet chuck's clamping gap under the extrusion/loosen of lock sleeve, realize compressing tightly or loosening down-the-hole drill bit work piece, simple structure, positioning accuracy is high, and work piece processingquality is good.
Description
Technical Field
The utility model relates to the technical field of clamps, especially, relate to anchor clamps that down-the-hole bores finish turning major part excircle was used.
Background
The common clamping mode of the down-the-hole drill bit is as follows: positioning the end face of the bottom of the small head, clamping the excircle of the spline part by using a three-jaw chuck, and finely turning the end face and the inclined plane of the large head. Because the three-jaw chuck has low clamping precision, the coaxiality of the large head and the small head can only be controlled within the range of +/-0.2 mm, and the improvement is difficult. In view of the current situation, it is imperative to design a special fixture to greatly improve the coaxiality of the reducer.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned not enough of prior art, the utility model provides a down-the-hole bores anchor clamps that finish turning major part excircle was used solves the not high technical problem of current down-the-hole drill anchor clamps clamping precision.
The utility model discloses a realize through following technical scheme:
the fixture for drilling and finish turning of the large-end outer circle of the down-the-hole drill comprises a lathe spindle and a mandrel arranged in the lathe spindle, wherein a first groove and a second groove are formed in two ends of the mandrel respectively, a spring chuck used for clamping a workpiece is arranged in the first groove, a locking sleeve is sleeved on the mandrel outside the first groove, one end of the locking sleeve is connected and fixed on the mandrel, the other end of the locking sleeve is pressed on the spring chuck, the locking sleeve is connected with a threaded sleeve through a bearing, a pull rod is inserted in the second groove, and the other end of the pull rod is fixedly connected with one end of the lathe spindle.
Further, the thread bush is fixed on the thread seat.
Further, a spindle end cover is further arranged outside the lathe spindle, and the threaded seat is fixedly connected with the spindle end cover through a socket head cap screw.
Furthermore, a bearing gland is arranged on one side of the bearing, and the bearing gland and the threaded sleeve are fixedly connected through a second socket head cap screw.
Furthermore, a dustproof ring is arranged between the bearing gland and the locking sleeve.
Furthermore, the other end of the pull rod is fixedly connected with one end of the lathe spindle through a nut, and a gasket is arranged between the nut and the lathe spindle.
Further, the mandrel and the pull rod are arranged along the axial direction of the lathe spindle.
Furthermore, a handle is fixed on the threaded sleeve.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model provides a down-the-hole bores anchor clamps that finish turning major part excircle was used, control about the adjusting rod, control the removal of drive lock sleeve, change collet chuck's clamping gap under the extrusion/loosen of lock sleeve, realize compressing tightly or loosening down-the-hole drill bit work piece, simple structure, positioning accuracy is high, and work piece processingquality is good.
Drawings
Fig. 1 is the embodiment of the utility model, the structure schematic diagram of the clamp for the down-the-hole drill finish turning big end excircle.
In the figure:
1. a nut; 2. a gasket; 3. a pull rod; 4. a lathe spindle; 5. a mandrel; 6. a main shaft end cover; 7. a threaded seat; 8. a first inner hexagon screw; 9. a handle; 10. a threaded sleeve; 11. a bearing; 12. a bearing gland; 13. a locking sleeve; 14. a collet chuck; 15. a dust ring; 16. a second socket head cap screw; 17. and (5) a workpiece.
Detailed Description
The following examples are presented to illustrate certain embodiments of the invention and should not be construed as limiting the scope of the invention. The present disclosure may be modified from materials, methods, and reaction conditions at the same time, and all such modifications are intended to be within the spirit and scope of the present invention.
As shown in fig. 1, the fixture for finish turning of the large end outer circle of the down-the-hole drill comprises a lathe spindle 4 and a mandrel 5 arranged in the lathe spindle 4, wherein a first groove and a second groove are formed at two ends of the mandrel 5 respectively, a collet chuck 14 for clamping a workpiece 17 is arranged in the first groove, a locking sleeve 13 is sleeved on the mandrel 5 outside the first groove, one end of the locking sleeve 13 is fixedly connected to the mandrel 5, the other end of the locking sleeve is pressed on the collet chuck 14, the locking sleeve 13 is connected with a threaded sleeve 10 through a bearing 11, a handle 9 is fixed on the threaded sleeve 10, a pull rod 3 is inserted into the second groove, and the other end of the pull rod 3 is fixedly connected with one end of the lathe spindle 4.
The thread bush 10 is fixed on the thread seat 7, the spindle end cover 6 is further arranged outside the lathe spindle 4, and the thread seat 7 is fixedly connected with the spindle end cover 6 through a first hexagon socket head cap screw 8.
A bearing gland 12 is arranged on one side of the bearing 11 to limit the bearing to move left and right; the bearing gland 12 and the threaded sleeve 10 are fixedly connected through a second socket head cap screw 16; and a dustproof ring 15 is also arranged between the bearing gland 12 and the locking sleeve 13.
The other end of the pull rod 3 is fixedly connected with one end of a lathe spindle 4 through a nut 1, and a gasket 2 is further arranged between the nut 1 and the lathe spindle 4.
The mandrel 5 and the tie rod 3 are arranged along the axial direction of the lathe spindle 4.
When the clamping device is used, the pull rod is pulled leftwards, the mandrel 5 drives the locking sleeve 13 to move leftwards, the spring chuck is extruded inwards, and a workpiece is clamped; conversely, when the pull rod moves to the right, the mandrel 5 drives the locking sleeve 13 to move to the right, the spring chuck opens outwards, and the workpiece is loosened.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (8)
1. The fixture for the outer circle of the large end of the down-the-hole drill finish turning is characterized by comprising a lathe spindle (4) and a mandrel (5) arranged in the lathe spindle (4), wherein a first groove and a second groove are formed at two ends of the mandrel (5) respectively, a spring chuck (14) used for clamping a workpiece (17) is arranged in the first groove, a locking sleeve (13) is sleeved on the mandrel (5) outside the first groove, one end of the locking sleeve (13) is connected and fixed on the mandrel (5), the other end of the locking sleeve is pressed on the spring chuck (14), the locking sleeve (13) is connected with a threaded sleeve (10) through a bearing (11), a pull rod (3) is inserted into the second groove, and the other end of the pull rod (3) is fixedly connected with one end of the lathe spindle (4).
2. The clamp for the fine turning of the large-head outer circle of the down-the-hole drill according to claim 1, characterized in that the threaded sleeve (10) is fixed on the threaded seat (7).
3. The clamp for the fine turning of the large-head outer circle of the down-the-hole drill according to claim 2, wherein a main shaft end cover (6) is further arranged outside the main shaft (4), and the threaded seat (7) and the main shaft end cover (6) are fixedly connected through a first hexagon socket head cap screw (8).
4. The clamp for the down-the-hole drill to finish the big end and the outer circle is characterized in that a bearing gland (12) is arranged on one side of the bearing (11), and the bearing gland (12) and the threaded sleeve (10) are fixedly connected through a second hexagon socket head cap screw (16).
5. The clamp for the down-the-hole drill to finish the excircle of the big end is characterized in that a dust ring (15) is arranged between the bearing gland (12) and the locking sleeve (13).
6. The clamp for the down-the-hole drill to finish the big end outer circle is characterized in that the other end of the pull rod (3) is fixedly connected with one end of a lathe spindle (4) through a nut (1), and a washer (2) is arranged between the nut (1) and the lathe spindle (4).
7. The clamp for the down-the-hole drill to finish the external circle of the big end is characterized in that the mandrel (5) and the pull rod (3) are arranged along the axial direction of the lathe spindle (4).
8. The clamp for the fine turning of the large-head outer circle of the down-the-hole drill as claimed in claim 1, wherein a handle (9) is fixed on the threaded sleeve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922453306.3U CN211361513U (en) | 2019-12-30 | 2019-12-30 | Clamp for down-the-hole drill finish turning of big end excircle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922453306.3U CN211361513U (en) | 2019-12-30 | 2019-12-30 | Clamp for down-the-hole drill finish turning of big end excircle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211361513U true CN211361513U (en) | 2020-08-28 |
Family
ID=72169584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922453306.3U Expired - Fee Related CN211361513U (en) | 2019-12-30 | 2019-12-30 | Clamp for down-the-hole drill finish turning of big end excircle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211361513U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115156966A (en) * | 2022-07-12 | 2022-10-11 | 重庆蓝黛传动机械有限公司 | Clamp for end press |
-
2019
- 2019-12-30 CN CN201922453306.3U patent/CN211361513U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115156966A (en) * | 2022-07-12 | 2022-10-11 | 重庆蓝黛传动机械有限公司 | Clamp for end press |
| CN115156966B (en) * | 2022-07-12 | 2024-01-02 | 重庆蓝黛传动机械有限公司 | Clamp for end press |
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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 |
Granted publication date: 20200828 Termination date: 20211230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |