CN215659930U - Fixed frock with inflation cover - Google Patents
Fixed frock with inflation cover Download PDFInfo
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- CN215659930U CN215659930U CN202121791882.XU CN202121791882U CN215659930U CN 215659930 U CN215659930 U CN 215659930U CN 202121791882 U CN202121791882 U CN 202121791882U CN 215659930 U CN215659930 U CN 215659930U
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- expansion sleeve
- flange
- expansion
- conical
- fixing tool
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Abstract
The utility model relates to the field of fixture tools, in particular to a fixing tool with an expansion sleeve, which comprises a flange cone, the expansion sleeve, an expansion sleeve end cover and a shaft, wherein the flange cone is fixedly connected with the expansion sleeve; the flange cone comprises a flange part and a conical part, one end of the conical part is fixedly arranged on the flange part, the outer side surface of the other end of the conical part is a conical surface, and the bottom surface of the conical surface is close to the flange part; the top surface of the conical part is provided with a first connecting hole with the circle center positioned on the axis of the conical part; a conical hole with the same taper as the conical part is formed in the expansion sleeve, and the expansion sleeve is arranged on the conical part in a sliding mode through the conical hole; the end, far away from the flange awl, of the expansion sleeve is fixedly provided with an expansion sleeve end cover, the middle of the expansion sleeve end cover is provided with a second connecting hole coaxial with the expansion sleeve, a shaft is fixedly arranged on the second connecting hole, and one end of the shaft is arranged in the first connecting hole in a penetrating mode. This patent passes through the axial displacement of axle, drives the inflation and the shrink of inflation cover, plays good fixed effect to the difficult clamping of internal and external circle and to the work piece that the interior external circle axiality required height.
Description
Technical Field
The utility model relates to the field of clamp tools, in particular to a fixing tool with an expansion sleeve.
Background
In machining, some workpieces which are difficult to clamp the inner circle and the outer circle and have high requirements on the coaxiality of the inner circle and the outer circle can be encountered, for example, an assembly structure of a motor stator is difficult to position and clamp in a conventional mode due to the shape specificity of the workpieces.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model aims to provide a fixing tool with an expansion sleeve, which realizes the expansion and contraction of the expansion sleeve through the matching of a flange cone and the expansion sleeve so as to fix a workpiece.
For the purpose of the utility model, the following technical scheme is adopted for implementation:
a fixing tool with an expansion sleeve comprises a flange cone, the expansion sleeve, an expansion sleeve end cover and a shaft; the flange cone comprises a flange part and a conical part, the axis of the conical part is parallel to that of the flange part, one end of the conical part is fixedly arranged on the flange part, the outer side surface of the other end of the conical part is a conical surface, and the bottom surface of the conical surface is close to the flange part; the top surface of the conical part is provided with a first connecting hole with the circle center positioned on the axis of the conical part; a conical hole with the same taper as the conical part is formed in the expansion sleeve, and the expansion sleeve is arranged on the conical part in a sliding mode through the conical hole; the expansion sleeve end cover is fixedly arranged at the end, far away from the flange cone, of the expansion sleeve, a second connecting hole coaxial with the expansion sleeve is formed in the middle of the expansion sleeve end cover, a shaft is fixedly arranged on the second connecting hole, and one end of the shaft extends towards the flange cone and penetrates through the first connecting hole.
Preferably, the first connection hole penetrates through the flange cone.
Preferably, the second connecting hole is in threaded connection with the shaft.
Preferably, the side of the expansion sleeve end cover facing the flange cone is provided with a limiting groove matched with the conical part.
Preferably, the expansion sleeve is fixedly connected with the expansion sleeve end cover by screws.
Preferably, the expansion sleeve end cover is provided with an extension part at the middle part of the end far away from the flange cone, and the other end of the shaft penetrates out of the extension part.
Preferably, the axis of the conical portion is aligned with the axis of the flange portion.
Preferably, the expansion sleeve comprises a plurality of expansion blocks which are circumferentially arranged to form a ring shape, a gap is arranged between every two adjacent expansion blocks, one end of each expansion block is connected with the end of the previous expansion block, and the other end of each expansion block is connected with the end of the next expansion block.
Preferably, the expansion sleeve is provided with two grooves, and the tail end of the gap is positioned in the grooves.
Preferably, the tail end of the gap is provided with a through hole penetrating through the inner side and the outer side of the expansion sleeve.
In conclusion, the expansion sleeve has the advantages that the expansion sleeve is driven to expand and contract through the axial movement of the shaft, the operation is convenient, and the expansion sleeve has good fixing effect on workpieces which are difficult to clamp inner and outer circles and have high requirements on the coaxiality of the inner circle and the outer circle.
Drawings
Fig. 1 is a schematic structural view of the tool.
Fig. 2 is a cross-sectional view of the tool along an axis.
Fig. 3 is an exploded view of the tool.
Fig. 4 is a schematic structural diagram of the expansion sleeve.
Detailed Description
As shown in fig. 1 to 4, a fixing tool with an expansion sleeve comprises a flange cone 1, an expansion sleeve 2, an expansion sleeve end cover 3 and a shaft 4.
The flange cone 1 comprises a flange part 11 and a conical part 12, wherein the axis of the conical part 12 is parallel to the axis of the flange part 11, and preferably, the axis of the conical part 12 is in the same line with the axis of the flange part 11, so that the flange cone 1 can be conveniently machined. The left end of the conical part 12 is fixedly arranged on the flange part 11, the outer side surface of the right end is a conical surface, and the bottom surface (the end with the larger diameter) of the conical surface is close to the flange part 11. The top surface (the smaller diameter end) of the conical part 12 is provided with a first connection hole 121 with the center located on the axis of the conical part 12, preferably, the first connection hole 121 penetrates through the flange cone 1, which facilitates the processing and manufacturing of the first connection hole 121.
The expansion sleeve 2 is internally provided with a tapered hole 21 which is consistent with the taper of the tapered part 12, and the expansion sleeve 2 is arranged on the tapered part 12 in a sliding way through the tapered hole 21. The expansion sleeve 2 comprises a plurality of expansion blocks 22 which are circumferentially arranged to form a ring shape, a gap 23 is arranged between every two adjacent expansion blocks 22, one end of each expansion block 22 is connected with the end of the previous expansion block 22, and the other end of each expansion block 22 is connected with the end of the next expansion block 22. I.e. the openings of two adjacent gaps 23 are in opposite directions. Two grooves 24 are arranged on the expansion sleeve 2, and the tail ends of the gaps 23 are positioned in the grooves 24. The tail end of the gap 23 is provided with a through hole 25 which penetrates through the inner side and the outer side of the expansion sleeve 2.
The expansion sleeve end cover 3 is fixedly arranged at the end, far away from the flange cone 1, of the expansion sleeve 2, preferably, the expansion sleeve 2 and the expansion sleeve end cover 3 are fixedly connected through a screw 5, and therefore the expansion sleeve 2 is convenient to assemble and disassemble. The middle part of the expansion sleeve end cover 3 is provided with a second connecting hole 31 which is coaxial with the expansion sleeve 2, the second connecting hole 31 is fixedly provided with a shaft 4, preferably, the second connecting hole 31 is in threaded connection with the shaft 4, and the shaft 4 is convenient to mount. One end of the shaft 4 extends toward the flange cone 1 and is inserted into the first connection hole 121. The expansion sleeve end cover 3 is provided with an extension part 33 at the middle part of the end far away from the flange cone 1, and the other end of the shaft 4 penetrates through the extension part 33. The side of the expansion shell end cover 3 facing the flange cone 1 is provided with a limiting groove 32 matched with the conical part 12 to prevent the expansion shell 2 from being over-expanded.
When the tool is used, the flange part 11 of the flange cone 1 is fixedly mounted on a fixed disc of a machine tool, a part to be processed is mounted on the expansion sleeve 2, the right end of the shaft 4 is connected with a linear driving device (such as a cylinder), the linear driving device is started, the shaft 4 drives the expansion sleeve end cover 3 to move towards the flange cone 1, expansion blocks 22 on the expansion sleeve 2 are mutually far away under the action of the conical part 12, expansion is achieved, a workpiece is propped open from the inside, and the purpose of fixing the processed workpiece is achieved. After the workpiece is machined, the linear driving device resets, the shaft 4 drives the expansion sleeve end cover 3 to move towards the direction away from the flange cone 1, and the expansion sleeve 2 resets, so that the workpiece is loosened.
The tool has the advantages that the expansion and contraction of the expansion sleeve 2 are driven through the axial movement of the shaft 4, the operation is convenient, and the tool has a good fixing effect on workpieces which are difficult to clamp inner circles and outer circles and have high requirements on the coaxiality of the inner circles and the outer circles. And a limiting groove 32 is formed in the expansion sleeve end cover 3 to prevent the expansion sleeve 2 from being over expanded.
Claims (10)
1. A fixing tool with an expansion sleeve is characterized by comprising a flange cone (1), the expansion sleeve (2), an expansion sleeve end cover (3) and a shaft (4); the flange cone (1) comprises a flange part (11) and a conical part (12), the axis of the conical part (12) is parallel to the axis of the flange part (11), one end of the conical part (12) is fixedly arranged on the flange part (11), the outer side surface of the other end of the conical part is a conical surface, and the bottom surface of the conical surface is close to the flange part (11); a first connecting hole (121) with the circle center positioned on the axis of the conical part (12) is arranged on the top surface of the conical part (12); a tapered hole (21) with the same taper as the tapered part (12) is formed in the expansion sleeve (2), and the expansion sleeve (2) is arranged on the tapered part (12) in a sliding mode through the tapered hole (21); the end that keeps away from flange awl (1) on inflation cover (2) is fixed to be provided with inflation cover end cover (3), and the middle part of inflation cover end cover (3) is provided with second connecting hole (31) coaxial with inflation cover (2), fixedly on second connecting hole (31) set up axle (4), and the one end of axle (4) extends to flange awl (1) to wear to establish in first connecting hole (121).
2. Fixing tool with expansion shell according to claim 1, characterized in that the first connection hole (121) extends through the flange cone (1).
3. The fixing tool with the expansion sleeve is characterized in that the second connecting hole (31) is in threaded connection with the shaft (4).
4. The fixing tool with the expansion sleeve is characterized in that a limiting groove (32) matched with the conical part (12) is formed in the side, facing the flange cone (1), of the expansion sleeve end cover (3).
5. The fixing tool with the expansion sleeve is characterized in that the expansion sleeve (2) is fixedly connected with the expansion sleeve end cover (3) through a screw (5).
6. The fixing tool with the expansion sleeve is characterized in that an extension part (33) is arranged in the middle of the end, far away from the flange cone (1), of the expansion sleeve end cover (3), and the other end of the shaft (4) penetrates out of the extension part (33).
7. Fixing tool with expansion shell according to claim 1, characterized in that the axis of the conical part (12) is aligned with the axis of the flange part (11).
8. The fixing tool with the expansion sleeve is characterized in that the expansion sleeve (2) comprises a plurality of expansion blocks (22) which are circumferentially arranged to form a ring shape, a gap (23) is arranged between every two adjacent expansion blocks (22), one end of each expansion block (22) is connected with the end of the previous expansion block (22), and the other end of each expansion block (22) is connected with the end of the next expansion block (22).
9. The fixing tool with the expansion sleeve is characterized in that two grooves (24) are formed in the expansion sleeve (2), and the tail end of the gap (23) is located in the grooves (24).
10. The fixing tool with the expansion sleeve as claimed in claim 8 or 9, wherein the end of the gap (23) is provided with a through hole (25) penetrating through the inner side and the outer side of the expansion sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121791882.XU CN215659930U (en) | 2021-08-03 | 2021-08-03 | Fixed frock with inflation cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121791882.XU CN215659930U (en) | 2021-08-03 | 2021-08-03 | Fixed frock with inflation cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215659930U true CN215659930U (en) | 2022-01-28 |
Family
ID=79983079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121791882.XU Active CN215659930U (en) | 2021-08-03 | 2021-08-03 | Fixed frock with inflation cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215659930U (en) |
-
2021
- 2021-08-03 CN CN202121791882.XU patent/CN215659930U/en active Active
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