CN211072756U - Centering combined clamping device in long cylinder - Google Patents
Centering combined clamping device in long cylinder Download PDFInfo
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- CN211072756U CN211072756U CN201921922844.6U CN201921922844U CN211072756U CN 211072756 U CN211072756 U CN 211072756U CN 201921922844 U CN201921922844 U CN 201921922844U CN 211072756 U CN211072756 U CN 211072756U
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- centering
- diameter expansion
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- 235000014676 Phragmites communis Nutrition 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 244000273256 Phragmites communis Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 244000082204 Phyllostachys viridis Species 0.000 claims 1
- 238000003754 machining Methods 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a long cylinder internal centering combined clamping device, which comprises a shaft, a fixed cone, a double-cone equal-diameter expansion spring and a movable cone, wherein the shaft is connected with an inner hole of a main shaft of a machine tool; the fixed cone and the movable cone are fixedly sleeved on the shaft, and the left front end of the movable cone penetrates through the fixed cone and is screwed by a large nut; the movable cone is sleeved with a double-cone equal-diameter expansion spring, the left end and the right end of the double-cone equal-diameter expansion spring are respectively provided with an inner conical hole, the right end of the fixed cone is provided with an outer conical surface structure, the tail end of the outer conical surface of the fixed cone is provided with a positioning end face, the right end of the movable cone is provided with an outer conical surface structure, and the outer wall of the right end of the double-cone equal-diameter expansion spring is sleeved with an opening. The utility model discloses a two-way location of two spring that rise press from both sides tight mode to there is supplementary rigidity centering cone disc supporting in the design of processing part cantilever end. The positioning and centering combined device can reduce the deformation of the product caused by the processing stress, ensure the uniform wall thickness difference of the whole section of the processed part, and has the characteristics of convenient operation, safety, reliability and the like.
Description
Technical Field
The utility model relates to the technical field of machining, in particular to centering combination clamping device in long section of thick bamboo.
Background
At present, with the continuous development of the mechanical processing technology of military and civil products, the processing precision of the products is continuously improved. And the development of modern industrial technology and the structural design of products are more and more elaborate, and the products need to be light and reliable so as to increase the effective load, thereby putting higher requirements on machining process devices.
The long cylindrical thin-wall part has the characteristics of small wall thickness (less than or equal to 2 mm), weak rigidity, easy deformation and the like, so that the attention and the attention of the machining industry are attracted, and due to the fact that the shapes and the machining modes of products are different, the positioning and clamping devices of the long cylindrical thin-wall part are different greatly, and the machined products are difficult to meet the design requirements of the products.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a centering combination clamping device in simple structure, safe and reliable's a long section of thick bamboo.
The utility model provides a technical scheme of above-mentioned problem is: a long cylinder internal centering combined clamping device comprises a shaft, a fixed cone, a double-cone equal-diameter expansion spring and a movable cone, wherein the shaft is connected with an inner hole of a machine tool spindle; a fixed cone is fixedly sleeved on the left side of the shaft, a movable cone which can axially move relative to the shaft is sleeved in the middle of the shaft, and a threaded boss at the left front end of the movable cone penetrates through a waist-shaped inner hole of the fixed cone and is screwed by a large nut; the movable cone is sleeved with a double-cone equal-diameter expansion spring, inner conical holes are formed in the left end and the right end of the double-cone equal-diameter expansion spring, an outer conical surface structure matched with an inner conical surface formed by the inner conical hole in the left end of the double-cone equal-diameter expansion spring is arranged at the right end of the fixed cone, a positioning end surface for limiting the movement of the double-cone equal-diameter expansion spring is arranged at the tail end of the outer conical surface of the fixed cone, an outer conical surface structure matched with the inner conical surface formed by the inner conical hole in the right end of the double-cone equal-diameter expansion spring is arranged at the right end of the movable cone, and an opening expansion spring is sleeved.
In the centering combined clamping device in the long cylinder, the vertex angles of the inner cones at two ends of the outer cylindrical section of the double-cone equal-diameter expansion spring are α angles and β angles, α = β, and a plurality of opening elastic grooves which are mutually staggered in a balanced manner are axially arranged at two ends of the double-cone equal-diameter expansion spring.
According to the clamping device with the centering combination in the long cylinder, the centering support boss is arranged in the middle of the inner cavity of the double-cone constant-diameter expansion spring and matched with the outer cylindrical surface of the movable cone, so that the thin-wall double-cone constant-diameter expansion spring keeps ideal deformation in the working process.
According to the centering combined clamping device in the long cylinder, the opening reeds are formed between two adjacent opening elastic grooves at the same end of the double-cone equal-diameter expansion spring, and the opening reeds at the same end of the double-cone equal-diameter expansion spring are symmetrically distributed.
According to the centering combined clamping device in the long cylinder, the workpiece is clamped by the double-cone expansion spring through the opening expansion spring in a transition force transmission internal support mode, and the opening expansion spring is matched with the trapezoidal boss in the workpiece.
Above-mentioned centering combination clamping device in long section of thick bamboo, axle right side is equipped with the location step, and the axle right-hand member is equipped with the cover in proper order and establishes adjusting washer, spring, supplementary centering conical disk, retaining ring, nut I, the location step is hugged closely to the adjusting washer, and the spring both ends are fixed respectively on adjusting washer and supplementary centering conical disk, I outside of nut is equipped with dabber and nut II, in the dabber left end axial inserts the axle, can carry out spacingly to the dabber with I radial centering conical disk of passing of round pin, the dabber right-hand member is equipped with nut II, through the rotation of nut II, moves the dabber to the right, passes power to round pin I and centering conical disk, reverse rigid support processing part hole.
According to the centering combined clamping device in the long cylinder, the left end of the shaft is provided with the fixing ring, the fixing ring and the shaft are connected and positioned by adopting left-handed threads, the large nut is only rotationally conveyed between the fixing ring and the fixed cone to drive the movable cone to axially move, and a workpiece is clamped under the action of the double-cone equal-diameter expansion spring.
In the centering combined clamping device in the long cylinder, a handle for driving the large nut to rotate is fixedly arranged on the outer wall of the large nut.
In the centering combined clamping device in the long cylinder, a key is arranged between the movable cone and the shaft.
According to the long cylinder internal centering combined clamping device, the external conical surface structure at the right end of the fixed cone is provided with a pin II for limiting the opening elastic groove of the double-cone equal-diameter expansion spring.
The beneficial effects of the utility model reside in that:
1. the utility model discloses a two-way location of two spring that rise press from both sides tight mode to there is supplementary rigidity centering cone disc supporting in the design of processing part cantilever end. The positioning and centering combined device can reduce the deformation of the product caused by the processing stress, ensure the uniform wall thickness difference of the whole section of the processed part, and has the characteristics of convenient operation, safety, reliability and the like.
2. The utility model discloses according to the poor characteristics that very easily warp again of long cylindric thin wall spare rigidity, adopt two complex two spring (bipyramid isometric spring + opening spring that rises) cylinder ends that rise as the primary importance, the spring location end that rises supports the stronger position of work piece rigidity, makes the spring that rises evenly rise tight work piece inner wall. For the long cylindrical thin-wall part, the integral rigidity is increased, and the cutting vibration in the machining process is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic structural view of the double-cone constant-diameter expanding spring in fig. 1.
Fig. 4 is a schematic structural view of the opening expanding spring in fig. 1.
Fig. 5 is a side view of fig. 4.
In the drawing, phi 1-a positioning outer diameter of a double-cone isodiametric expansion spring, phi 2-a matching outer diameter of the double-cone isodiametric expansion spring and an opening expansion spring, L-a length of the double-cone isodiametric expansion spring, L1-a matching length of the opening expansion spring and the double-cone isodiametric expansion spring, B-a notch width of the double-cone isodiametric expansion spring, α -a left inner cone angle of the double-cone isodiametric expansion spring, β -a right inner cone angle of the double-cone isodiametric expansion spring, phi 4-a matching inner diameter of the opening expansion spring and the double-cone isodiametric expansion spring, phi 5-a matching outer diameter of the opening expansion spring and a processed product, L2-a notch width of the opening expansion spring, B1-a notch width of the opening expansion spring, and gamma matching angle of the opening expansion spring and the processed part are included.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1-5, a long cylinder internal centering combined clamping device comprises a shaft 1, a fixed cone 4, a double-cone equal-diameter expansion spring 6 and a movable cone 8, wherein the shaft 1 is connected with an inner hole of a machine tool spindle, and a long screw is used for tensioning a clamp shaft; a fixed cone 4 is fixedly sleeved on the left side of the shaft 1; a movable cone 8 which can axially move relative to the shaft 1 is sleeved on the middle part of the shaft 1, and a key 9 is arranged between the movable cone 8 and the shaft 1; the thread boss at the left front end of the movable cone 8 penetrates through the waist-shaped inner hole of the fixed cone 4 and is screwed by the large nut 3, and the outer wall of the large nut 3 is fixedly provided with a handle 19 for driving the large nut to rotate; the movable cone 8 is sleeved with a double-cone constant-diameter expansion spring 6, inner conical holes are formed in the left end and the right end of the double-cone constant-diameter expansion spring 6, an outer conical surface structure matched with an inner conical surface formed by the inner conical hole in the left end of the double-cone constant-diameter expansion spring 6 is arranged at the right end of the fixed cone 4, a positioning end surface for limiting the movement of the double-cone constant-diameter expansion spring 6 is arranged at the tail end of the outer conical surface of the fixed cone 4, and an outer conical surface structure matched with the inner conical surface formed by the inner conical hole in the right end of the double-cone constant-diameter expansion spring 6 is arranged; an opening expansion spring 18 is sleeved on the outer wall of the right end of the double-cone equal-diameter expansion spring 6.
The conical top angles of the inner cones at the two ends of the outer cylindrical section of the double-cone isometric expansion spring 6 are α angles and β angles, α = β, a plurality of opening elastic grooves which are mutually balanced and staggered are axially arranged at the two ends of the double-cone isometric expansion spring 6, a pin II 5 used for limiting the opening elastic grooves of the double-cone isometric expansion spring 6 is arranged on the outer conical surface structure at the right end of the fixed cone 4, and the pin II 5 is aligned to the opening elastic grooves.
And a centering support boss is arranged in the middle of the inner cavity of the double-cone equal-diameter expansion spring 6 and matched with an outer cylindrical surface on the movable cone 8, so that the thin-wall double-cone equal-diameter expansion spring 6 keeps ideal deformation in work.
An opening reed is formed between two adjacent opening elastic grooves at the same end of the double-cone equal-diameter expansion spring 6, and the opening reeds at the same end of the double-cone equal-diameter expansion spring 6 are symmetrically distributed.
The right end of the double-cone expansion spring is used for transferring force to an internal support through an opening expansion spring 18 to clamp a workpiece, and the opening expansion spring 18 is matched with an internal trapezoidal boss of the workpiece.
The utility model discloses a centering shaft, including axle 1, axle I15, adjusting washer 10, spring 11, supplementary centering conical disk 13, retaining ring 14, nut I15, the location step is equipped with the cover in proper order on the 1 right side of axle, and the 1 right-hand member of axle is equipped with the cover in proper order and establishes adjusting washer 10, spring 11, supplementary centering conical disk 13, retaining ring 14, nut I15, the location step is hugged closely to adjusting washer 10, and the spring 11 both ends are fixed respectively on adjusting washer 10 and supplementary centering conical disk 13, the I15 outside of nut is equipped with dabber 16 and nut II 17, 16 left ends of dabber are axial to insert in the axle 1, and it can carry on spacingly to dabber 16 to radially pass the centering conical disk with round pin I12, and 16 right-hand.
The left end of the shaft 1 is provided with a fixed ring 2, the fixed ring 2 and the shaft 1 are connected and positioned by adopting left-handed threads, the large nut 3 is only rotationally transported between the fixed ring 2 and the fixed cone 4 to drive the movable cone 8 to axially move, and a workpiece is clamped under the action of the double-cone constant-diameter expansion spring 6.
The utility model discloses an installation does: the shaft 1 is connected with an inner hole of a main shaft of the machine tool, and a long screw is used for tensioning the clamp shaft; after the hole of the fixed cone 4 is pressed into the shaft 1, the fixed cone is fixed or welded by a set screw 7; one end of a double-cone equal-diameter expansion spring 6 is placed on the outer conical surface of the fixed cone 4, and an opening elastic groove on the double-cone equal-diameter expansion spring 6 is aligned to the pin II 5; a key 9 is arranged, the movable cone 8 is arranged on the shaft 1, the threaded boss at the left front end of the movable cone 8 penetrates through the waist-shaped inner hole of the fixed cone 4 and is screwed with the large nut 3, and the outer conical surface at the right end of the movable cone 8 is attached to the inner conical surface of the double-cone equal-diameter expansion spring 6; then an adjusting washer 10, a spring 11, a centering cone disc and a retainer ring 14 are arranged, and a nut I15 is screwed; and finally, installing the mandrel 16, the pin I12 and the nut II 17.
The working principle of the utility model is that the workpiece length is L, the opening expansion spring 18 is firstly placed at the middle positioning clamping bearing (trapezoid boss) of the workpiece, the inner hole at the left end of the workpiece is sleeved in the double-cone equal-diameter expansion spring 6, and the left end face of the workpiece is tightly attached to the positioning end face of the fixed cone 4, the large nut 3 is screwed down, the movable cone 8 moves to the left in the axial direction to act on the double-cone equal-diameter expansion spring 6 to fasten the workpiece, the nut II 17 is screwed down again, the cantilever end of the machined part is fixed reversely, the workpiece clamping is completed, when the workpiece is machined, the workpiece is disassembled, the nut II 17 is firstly unscrewed, the large nut 3 is unscrewed by the handle 19, the double-cone equal-diameter expansion spring 6 is unscrewed by means of the prepressing elastic force of the spring 11, the movable cone 8.
The utility model discloses according to shape and step size in the product, can design various special bipyramid and rise the spring, only change and rise spring location centering excircle diameter, borrow same kind of dabber 16, form the processing anchor clamps of size serialization, satisfy the processing requirement of different diameter products of the same kind.
Claims (10)
1. The utility model provides a centering combination clamping device in long section of thick bamboo which characterized in that: the device comprises a shaft, a fixed cone, a double-cone constant-diameter expansion spring and a movable cone, wherein the shaft is connected with an inner hole of a main shaft of a machine tool; a fixed cone is fixedly sleeved on the left side of the shaft, a movable cone which can axially move relative to the shaft is sleeved in the middle of the shaft, and a threaded boss at the left front end of the movable cone penetrates through a waist-shaped inner hole of the fixed cone and is screwed by a large nut; the movable cone is sleeved with a double-cone equal-diameter expansion spring, inner conical holes are formed in the left end and the right end of the double-cone equal-diameter expansion spring, an outer conical surface structure matched with an inner conical surface formed by the inner conical hole in the left end of the double-cone equal-diameter expansion spring is arranged at the right end of the fixed cone, a positioning end surface for limiting the movement of the double-cone equal-diameter expansion spring is arranged at the tail end of the outer conical surface of the fixed cone, an outer conical surface structure matched with the inner conical surface formed by the inner conical hole in the right end of the double-cone equal-diameter expansion spring is arranged at the right end of the movable cone, and an opening expansion spring is sleeved.
2. The combined clamping device for centering in the long cylinder as claimed in claim 1, wherein the top angles of the inner cones at both ends of the outer cylindrical section of the double-cone constant diameter expanding spring are α degrees and β degrees, α = β, and a plurality of open elastic grooves which are mutually and uniformly staggered are axially arranged at both ends of the double-cone constant diameter expanding spring.
3. The inside-long-tube centering combined clamping device as claimed in claim 1, wherein: and a centering support boss is arranged in the middle of the inner cavity of the double-cone equal-diameter expansion spring and matched with an outer cylindrical surface on the movable cone, so that the thin-wall double-cone equal-diameter expansion spring keeps ideal deformation in work.
4. The inside-long-tube centering combined clamping device as claimed in claim 2, wherein: an opening reed is formed between two adjacent opening elastic grooves at the same end of the double-cone equal-diameter expansion spring, and the opening reeds at the same end of the double-cone equal-diameter expansion spring are symmetrically distributed.
5. The inside-long-tube centering combined clamping device as claimed in claim 1, wherein: the right end of the double-cone expansion spring is in transition force transmission with the opening expansion spring to clamp a workpiece through an internal support, and the opening expansion spring is matched with the trapezoidal boss in the workpiece.
6. The inside-long-tube centering combined clamping device as claimed in claim 1, wherein: the axle right side is equipped with the location step, and the axle right-hand member is equipped with the cover in proper order and establishes adjusting washer, spring, supplementary centering conical disk, retaining ring, nut I, the location step is hugged closely to the adjusting washer, and the spring both ends are fixed respectively on adjusting washer and supplementary centering conical disk, I outside of nut is equipped with dabber and nut II, the dabber left end is axial to inserting epaxially in, radially passes the centering conical disk with round pin I and can carry on spacingly to the dabber, and the dabber right-hand member is equipped with nut II, through the rotation of nut II, moves the dabber to the right, passes power to round pin I and centering conical disk, reverse rigid support processing part hole.
7. The inside-long-tube centering combined clamping device as claimed in claim 1, wherein: the left end of the shaft is provided with a fixed ring, the fixed ring and the shaft are connected and positioned by adopting left-handed threads, the large nut is only rotationally conveyed between the fixed ring and the fixed cone to drive the movable cone to axially move, and a workpiece is clamped under the action of the double-cone equal-diameter expansion spring.
8. The inside-long-tube centering combined clamping device as claimed in claim 1, wherein: and a handle for driving the large nut to rotate is fixedly arranged on the outer wall of the large nut.
9. The inside-long-tube centering combined clamping device as claimed in claim 1, wherein: a key is arranged between the movable cone and the shaft.
10. The inside-long-tube centering combined clamping device as claimed in claim 2, wherein: and a pin II for limiting an opening elastic groove of the double-cone isometric expansion spring is arranged on the outer conical surface structure at the right end of the fixed cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921922844.6U CN211072756U (en) | 2019-11-08 | 2019-11-08 | Centering combined clamping device in long cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921922844.6U CN211072756U (en) | 2019-11-08 | 2019-11-08 | Centering combined clamping device in long cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211072756U true CN211072756U (en) | 2020-07-24 |
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ID=71637937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921922844.6U Active CN211072756U (en) | 2019-11-08 | 2019-11-08 | Centering combined clamping device in long cylinder |
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| Country | Link |
|---|---|
| CN (1) | CN211072756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091846A (en) * | 2020-09-14 | 2020-12-18 | 陕西理工大学 | Concentric shaft assembly positioning and clamping device with visible angle error |
-
2019
- 2019-11-08 CN CN201921922844.6U patent/CN211072756U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091846A (en) * | 2020-09-14 | 2020-12-18 | 陕西理工大学 | Concentric shaft assembly positioning and clamping device with visible angle error |
| CN112091846B (en) * | 2020-09-14 | 2022-01-28 | 陕西理工大学 | Concentric shaft assembly positioning and clamping device with visible angle error |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231124 Address after: 411100 building b09046, Hunan Jiangnan Machinery Industry Co., Ltd., nanzhushan Town, Yuhu District, Xiangtan City, Hunan Province Patentee after: Hunan Jiangnan Machinery Industry Co.,Ltd. Address before: 411207 nanzhushan Town, Yuhu District, Xiangtan City, Hunan Province Patentee before: JIANGNAN INDUSTRIES GRUOP Co.,Ltd. |
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| TR01 | Transfer of patent right |