CN204524316U - According to the order of sequence swelling centering bipyramid expansion sleeve clamp and bipyramid expansion set - Google Patents
According to the order of sequence swelling centering bipyramid expansion sleeve clamp and bipyramid expansion set Download PDFInfo
- Publication number
- CN204524316U CN204524316U CN201420834829.7U CN201420834829U CN204524316U CN 204524316 U CN204524316 U CN 204524316U CN 201420834829 U CN201420834829 U CN 201420834829U CN 204524316 U CN204524316 U CN 204524316U
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- China
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- bipyramid
- expansion set
- pull bar
- internal taper
- expansion
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Abstract
The utility model discloses and first disclose a kind of bipyramid expansion set, comprise expansion set body, be provided with central through hole in expansion set body, the two ends of central through hole are respectively equipped with two sections of internal taper holes, and wherein the tapering of one section of internal taper hole is greater than the tapering of other end internal taper hole.The invention also discloses the bipyramid expansion sleeve clamp of a kind of swelling according to the order of sequence centering, comprise base, pull bar is provided with in base, pull bar is equiped with its sliding fiting sleeve and bores with work, base and work are overlapped between boring and are equiped with bipyramid expansion set as above, the top of base is provided with the conical section I that the one section internal taper hole larger with tapering coordinates, and work cone is provided with the conical section II that the one section internal taper hole less with tapering coordinates; On pull bar, cover is equiped with the lining being positioned at work cone top, and pull bar is provided with the spacing axle collar, is provided with the flexible member be sleeved on pull bar between the spacing axle collar and lining; Base is provided with the support member for supporting workpiece lower surface, and on pull bar, fixed cover is equiped with the gland for being pressed on workpiece upper surface.
Description
Technical field
The utility model belongs to mechanical frock clamp art, is specifically related to bipyramid expansion sleeve clamp and the bipyramid expansion set thereof of a kind of swelling according to the order of sequence centering.
Background technology
The cone angle of the upper lower cone hole of the bipyramid expansion set of traditional bipyramid expansion sleeve clamp is identical, during clamping workpiece, what the centering mode due to upper and lower two pieces workpiece adopted is unordered centering mode, if upper inner hole of workpiece size is less than lower inner hole of workpiece size, then can cause the first swelling centering of workpiece, now due to upper workpiece, interaction between bipyramid expansion set and gland, cause bipyramid expansion set cannot continue axially to move down workpiece under swelling, namely there is the defect causing lower workpiece cannot be felt relieved by swelling.In addition, due to the two ends swelling distortion respectively of bipyramid expansion set, there is middle part stress and concentrate and need larger axial tension to drive the problem of distortion in existing bipyramid expansion set.
Summary of the invention
In view of this, the bipyramid expansion sleeve clamp that the purpose of this utility model is to provide a kind of swelling according to the order of sequence to feel relieved and bipyramid expansion set thereof, can guarantee the lower workpiece of first swelling centering all the time, and guarantee that two workpiece all can be felt relieved by swelling.
For achieving the above object, the utility model provides following technical scheme:
The utility model first proposed a kind of bipyramid expansion set, comprise expansion set body, be provided with central through hole in described expansion set body, the two ends of described central through hole are respectively equipped with two sections of internal taper holes, it is characterized in that: wherein the tapering of one section of described internal taper hole is greater than the tapering of internal taper hole described in the other end.
Further, the middle part periphery wall of described expansion set body is provided with the groove rounded.
The utility model also proposed the bipyramid expansion sleeve clamp of a kind of swelling according to the order of sequence centering, comprise base, pull bar is provided with in described base, described pull bar is equiped with its sliding fiting sleeve and bores with work, described base and described work are overlapped between boring and are equiped with bipyramid expansion set as above, the top of described base is provided with the conical section I that the one section described internal taper hole larger with tapering coordinates, and described work cone is provided with the conical section II that the one section described internal taper hole less with tapering coordinates; On described pull bar, cover is equiped with the lining being positioned at described work cone top, and described pull bar is provided with the spacing axle collar, is provided with the flexible member be sleeved on pull bar between the described spacing axle collar and described lining; Described base is provided with the support member for supporting workpiece lower surface, and on described pull bar, fixed cover is equiped with the gland for being pressed on workpiece upper surface.
Further, between described base and support member, being provided with the thimble be resisted against on described bipyramid expansion set, between described thimble and described base, being provided with the spring for driving described thimble to back down described bipyramid expansion set.
Further, position limiting structure is provided with between described gland and described lining.
Further, described position limiting structure comprises the spacing preiection I extending radially inwardly and be arranged on the endoporus inwall of described gland and the spacing preiection II be radially outward arranged on described lining periphery wall.
Further, described flexible member is disc spring.
The beneficial effects of the utility model are:
The bipyramid expansion sleeve clamp of the centering of swelling according to the order of sequence of the present utility model, by the tapering of two of bipyramid expansion set sections of internal taper holes is set to unequal, and by larger for tapering one section of internal taper hole and base engagement, less for tapering one section of internal taper hole is bored with work and coordinates, during clamping, pull pull bar, drive deformation of elastic element, the elastic force of flexible member acts on work cone by lining, radial deformation while work cone drives bipyramid expansion set to move down, because the tapering of the internal taper hole with base engagement is larger, under the condition of bipyramid expansion set Moving Unit axial distance, the radial-deformation of boring the one section of bipyramid expansion set coordinated with work is greater than with the radial-deformation of one section of bipyramid expansion set of base engagement, namely can guarantee that the lower workpiece near base one end is first felt relieved by swelling, felt relieved by swelling after the upper workpiece of gland one end, so, just can guarantee that two workpiece all can be felt relieved by swelling.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearly, the utility model provides following accompanying drawing to be described:
Fig. 1 is the structural representation of the bipyramid expansion sleeve clamp embodiment of swelling according to the order of sequence of the present utility model centering;
Fig. 2 is the structural representation of bipyramid expansion set.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, and to make those skilled in the art better can understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
As shown in Figure 1, be the structural representation of the bipyramid expansion sleeve clamp embodiment of the centering of swelling according to the order of sequence of the present utility model.The present embodiment according to the order of sequence swelling centering bipyramid expansion sleeve clamp, comprise base 1, be provided with pull bar 2 in base 1, pull bar 2 is equiped with its sliding fiting sleeve and bores 3 with work, base 1 and work are overlapped between boring 3 and are equiped with bipyramid expansion set 4.The bipyramid expansion set 4 of the present embodiment comprises expansion set body, central through hole 5 is provided with in expansion set body, the two ends of central through hole 5 are respectively equipped with two sections of internal taper holes, be respectively internal taper hole 6 and internal taper hole 7, wherein the tapering of one section of internal taper hole 6 is greater than the tapering of other end internal taper hole 7, and the middle part periphery wall of expansion set body is provided with the groove 8 rounded, when bipyramid expansion set 4 radial deformation, groove 8 plays the distortion effect of stepping down.The top of base 1 is provided with the conical section I that the one section internal taper hole 6 larger with tapering coordinates, and work cone 3 is provided with the conical section II that the one section internal taper hole 7 less with tapering coordinates.On pull bar 2, cover is equiped with the lining 9 be positioned at above work cone 3, and pull bar 2 is provided with the spacing axle collar 10, is provided with the flexible member be sleeved on pull bar 2 between the spacing axle collar 10 and lining 9, and the flexible member of the present embodiment selects disc spring 11.Base 1 is provided with the support member 14 for supporting workpiece 12 lower surface, and on pull bar 2, fixed cover is equiped with the gland 15 for being pressed on workpiece 13 upper surface.
Further, between base 1 and support member 14, being provided with the thimble 16 be resisted against on bipyramid expansion set 4, between thimble 16 and base 1, being provided with the spring 17 for driving thimble 16 to back down bipyramid expansion set 4, be convenient to dismantle workpiece.
Further, position limiting structure is provided with between gland 15 and lining 9, the position limiting structure of the present embodiment comprises the spacing preiection I extending radially inwardly and be arranged on the endoporus inwall of gland 15 and the spacing preiection II be radially outward arranged on lining 9 periphery wall, so, after work pieces process completes, utilize pull bar 2 that gland 15 and lining 9 can be driven to move axially simultaneously and unclamp workpiece and work cone 3, be convenient to dismantle workpiece.
The operation principle of bipyramid expansion sleeve clamp of the utility model swelling centering is according to the order of sequence as follows:
When pull bar 2 moves down at External Force Acting, disc spring 11 compressive deformation to pressing down lining 9, lining 9 is to pressing down work cone 3, work cone 3 moves down, horizontal component makes bipyramid expansion set 4 radial deformation, tapering B due to internal taper hole 6 is greater than the taper angles A of internal taper hole 7, when bipyramid expansion set 4 moves down a segment distance, the radial and outward deformation amount of the one section bipyramid expansion set 4 corresponding with internal taper hole 6 is greater than the radial and outward deformation amount of the one section bipyramid expansion set 4 corresponding with internal taper hole 7, when no matter this relation all exist, therefore workpiece 12 remains that first swelling is felt relieved, doing so avoids because the first swelling of workpiece 13 is felt relieved the situation causing bipyramid expansion set 4 to fall.
The above embodiment is only for absolutely proving the preferred embodiment that the utility model is lifted, and protection domain of the present utility model is not limited thereto.The equivalent alternative or conversion that those skilled in the art do on the utility model basis, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (7)
1. a bipyramid expansion set, comprises expansion set body, is provided with central through hole in described expansion set body, and the two ends of described central through hole are respectively equipped with two sections of internal taper holes, it is characterized in that: wherein the tapering of one section of described internal taper hole is greater than the tapering of internal taper hole described in the other end.
2. bipyramid expansion set according to claim 1, is characterized in that: the middle part periphery wall of described expansion set body is provided with the groove rounded.
3. one kind according to the order of sequence swelling centering bipyramid expansion sleeve clamp, it is characterized in that: comprise base, pull bar is provided with in described base, described pull bar is equiped with its sliding fiting sleeve and bores with work, described base and described work are overlapped between boring and are equiped with bipyramid expansion set as claimed in claim 1 or 2, the top of described base is provided with the conical section I that the one section described internal taper hole larger with tapering coordinates, and described work cone is provided with the conical section II that the one section described internal taper hole less with tapering coordinates; On described pull bar, cover is equiped with the lining being positioned at described work cone top, and described pull bar is provided with the spacing axle collar, is provided with the flexible member be sleeved on pull bar between the described spacing axle collar and described lining; Described base is provided with the support member for supporting workpiece lower surface, and on described pull bar, fixed cover is equiped with the gland for being pressed on workpiece upper surface.
4. the bipyramid expansion sleeve clamp of the centering of swelling according to the order of sequence according to claim 3, it is characterized in that: between described base and support member, be provided with the thimble be resisted against on described bipyramid expansion set, between described thimble and described base, being provided with the spring for driving described thimble to back down described bipyramid expansion set.
5. the bipyramid expansion sleeve clamp of the centering of swelling according to the order of sequence according to claim 3 or 4, is characterized in that: be provided with position limiting structure between described gland and described lining.
6. the bipyramid expansion sleeve clamp of the centering of swelling according to the order of sequence according to claim 5, is characterized in that: described position limiting structure comprises the spacing preiection I extending radially inwardly and be arranged on the endoporus inwall of described gland and the spacing preiection II be radially outward arranged on described lining periphery wall.
7. the bipyramid expansion sleeve clamp of the centering of swelling according to the order of sequence according to claim 3, is characterized in that: described flexible member is disc spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834829.7U CN204524316U (en) | 2014-12-25 | 2014-12-25 | According to the order of sequence swelling centering bipyramid expansion sleeve clamp and bipyramid expansion set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834829.7U CN204524316U (en) | 2014-12-25 | 2014-12-25 | According to the order of sequence swelling centering bipyramid expansion sleeve clamp and bipyramid expansion set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204524316U true CN204524316U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420834829.7U Expired - Fee Related CN204524316U (en) | 2014-12-25 | 2014-12-25 | According to the order of sequence swelling centering bipyramid expansion sleeve clamp and bipyramid expansion set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204524316U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284255A (en) * | 2018-03-30 | 2018-07-17 | 浙江中马传动股份有限公司 | A kind of expansion sleeve fixture of gear |
| CN109015057A (en) * | 2018-10-20 | 2018-12-18 | 贵州航铄工业股份有限公司 | A kind of pneumatic inner hole elastic fixing device |
-
2014
- 2014-12-25 CN CN201420834829.7U patent/CN204524316U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108284255A (en) * | 2018-03-30 | 2018-07-17 | 浙江中马传动股份有限公司 | A kind of expansion sleeve fixture of gear |
| CN109015057A (en) * | 2018-10-20 | 2018-12-18 | 贵州航铄工业股份有限公司 | A kind of pneumatic inner hole elastic fixing device |
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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: 20150805 Termination date: 20161225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |