CN203778798U - Self centering clamp for inner wall of thin-walled long sleeve - Google Patents
Self centering clamp for inner wall of thin-walled long sleeve Download PDFInfo
- Publication number
- CN203778798U CN203778798U CN201420079390.1U CN201420079390U CN203778798U CN 203778798 U CN203778798 U CN 203778798U CN 201420079390 U CN201420079390 U CN 201420079390U CN 203778798 U CN203778798 U CN 203778798U
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- thin
- axle
- cone
- hole
- multistage
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Abstract
The utility model relates to a self centering clamp for the inner wall of a thin-walled long sleeve. The clamp comprises a mandrel, a multistage conical shaft and an end cover; one end of a positioning pillar of the mandrel is provided with a positioning step; the outer circle of the mandrel is a positioning pillar surface; an inner hole is formed in the positioning pillar surface of the mandrel; a threaded hole is formed in the top end of the inner hole; at least two groups of radial through holes are formed in the positioning pillar of the mandrel along the axial direction; three or four radial through holes in each group of radial through holes are uniformly distributed in the same cross section of the positioning pillar; positioning clamping pillars are movably connected in the radial through holes in a matching mode; the multistage conical shaft is movably matched and connected in the inner hole of the mandrel; the front end of the multistage conical shaft is in threaded connection with the threaded hole in the top end of the inner hole; the rear end of the multistage conical shaft is movably matched and connected with the inner hole in the end cover fixedly connected at the rear end of the positioning pillar. The middle of the multistage conical shaft is provided with conical pillars adaptive to all groups of radial through holes; each conical shaft is formed by a front end circular truncated cone and a rear cylinder table; the conical pillar surface of each conical pillar is in contact connection with the bottom end of the corresponding positioning clamping pillar.
Description
Technical field
The utility model relates to a kind of thin-walled parts centralizer, particularly a kind of self-centering fixture of thin-walled parts.
Background technology
In machining, some workpiece are positioned and are clamped by its endoporus, and existing fixture or complicated structure, be exactly unload cumbersome, and order scarcely can realize self-centering, the requirement that often can not satisfy condition, causes machining accuracy poor.Therefore, Chinese invention patent application number: 201110286659.4, a kind of self-centering fixture is disclosed, axle is the cone of hollow, and the external diameter of nearly ring flange end is greater than the external diameter of ring flange end far away, the ring flange end far away of axle has one section of external screw thread, this section of external screw thread place is equipped with adjusting nut, axle is circumferentially arranged with a slidably baffle ring outward, axle is provided with a pair of chute along distributing in axle, the axle center of axle is hung with a pull bar, one end of pull bar and baffle ring fix by a pin, pin is through in a pair of chute, and can slide along it, the other end of pull bar is fixed with a catch, the inwall of expansion set is the conicoid matching with the outer wall of axle, outer wall is column face, the nearly ring flange end of expansion set has the locating ring for axial location workpiece of circumferential protrusion, on expansion set, axially offer multiple expansion joints of being convenient to expansion and shrinking, expansion set is set between baffle ring and adjusting nut, when adjusting nut is during to direction turn near described ring flange, the direction that expansion set increases to the external diameter of axle moves and external diameter is expanded, thereby offset with the inwall of workpiece, when adjusting nut is during to direction turn away from ring flange, adjusting nut drives described catch by pull bar and baffle ring, and expansion set is moved to the direction of the reduced diameter of described axle, the reduced diameter of expansion set and being separated with the inwall of workpiece.But this fixture, in the process of clamping thin-walled parts, easily causes thin-walled parts distortion.Particularly the distortion of thin-walled elongated workpieces is larger.
Summary of the invention
The utility model is the technical problem that clamps machining deformation that will solve thin-walled elongated workpieces, provides a kind of for thin-wall long sleeve inwall self-centering fixture.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of for thin-wall long sleeve inwall self-centering fixture, comprise axle, the multistage axis of cone, end cap, locating dowel one end of axle is provided with positioning step, axle cylindrical is location cylinder, in the location cylinder of axle, be provided with an endoporus, endoporus top is provided with screwed hole, in the locating dowel of axle, have vertically at least two group radial direction through hole, every group of radial direction through hole is evenly equipped with three or four radial direction through hole on the same cross section of locating dowel, the activity location clamping column that is connected in radial direction through hole, the activity multistage axis of cone that is connected in the endoporus of axle, multistage axis of cone front end is threaded with the screwed hole on endoporus top, multistage axis of cone rear end is connected with the end cap endoporus activity being fixedly connected on locating dowel rear end, multistage axis of cone middle part is provided with and every group of circular cone post that radial direction through hole is corresponding, each circular cone post is made up of nose circle frustum and rear end cylinder table, the circular cone cylinder of each circular cone post is connected with the bottom contact of location clamping column.
The locating dowel of axle is connected with thin-walled elongated workpieces endoporus matched in clearance.Multistage axis of cone rear end is provided with rotary handle.End face clamp nut is threaded on end cap cylindrical.
The beneficial effects of the utility model are: simple in structure, workpiece easy to loading and unloading, and can realize self-centering, particularly use after the clamping column of location, in the process of clamping thin-walled elongated workpieces, thin-walled elongated workpieces deflection is little, and positioning precision is high, can ensure axiality and the perpendicularity of the thin-walled elongated workpieces after processing, and be convenient to the handling of thin-walled elongated workpieces.
Brief description of the drawings
Fig. 1 is the structure cutaway view of the utility model in the time of location clamping thin-walled elongated workpieces;
Fig. 2 is the cutaway view along A-A in Fig. 1;
Fig. 3 is the structure cutaway view of the utility model in the time loosening clamping thin-walled elongated workpieces.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As shown in Figure 1 to Figure 3, a kind of for thin-wall long sleeve inwall self-centering fixture, comprise axle 1, the multistage axis of cone 2, location clamping column 3, end cap 4, end face clamp nut 5, rotary handle 6.
Locating dowel one end of axle 1 is provided with positioning step, axle 1 cylindrical is location cylinder, in the location cylinder of axle 1, be provided with an endoporus, endoporus top is provided with screwed hole, in the locating dowel of axle 1, have vertically at least two group radial direction through hole, every group of radial direction through hole is evenly equipped with three or four radial direction through hole on the same cross section of locating dowel, in radial direction through hole, activity is connected and locates clamping column 3, the activity multistage axis of cone 2 that is connected in the endoporus of axle 1, the multistage axis of cone 2 front ends are threaded with the screwed hole on endoporus top, the multistage axis of cone 2 rear ends are connected with the end cap 4 endoporus activities that are fixedly connected on locating dowel rear end, the multistage axis of cone 2 middle parts are provided with and every group of circular cone post that radial direction through hole is corresponding, each circular cone post is made up of nose circle frustum and rear end cylinder table, the circular cone cylinder of each circular cone post is connected with the bottom contact of location clamping column 3.
The locating dowel of axle 1 is connected with thin-walled elongated workpieces 7 endoporus matched in clearance.The multistage axis of cone 2 rear ends are provided with rotary handle 6.End face clamp nut 5 is threaded on end cap 4 cylindricals.
As shown in Figure 1, when the multistage axis of cone 2 is when near the direction precession of mandrels backend step surface, location clamping column 3 outward directions in the multistage axis of cone 2 move, and its head contacts and pushes against with the inwall of thin-walled elongated workpieces 7.
As shown in Figure 3, in the time that the multistage axis of cone 2 screws out to the direction away from mandrels backend step end face, the location clamping column 3 in the multistage axis of cone 2 is separated with the inwall of thin-walled elongated workpieces 7.
Claims (4)
1. one kind for thin-wall long sleeve inwall self-centering fixture, comprise axle (1), the multistage axis of cone (2), end cap (4), it is characterized in that: locating dowel one end of described axle (1) is provided with positioning step, axle (1) cylindrical is location cylinder, in the location cylinder of axle (1), be provided with an endoporus, endoporus top is provided with screwed hole, in the locating dowel of axle (1), have vertically at least two group radial direction through hole, every group of radial direction through hole is evenly equipped with three or four radial direction through hole on the same cross section of locating dowel, in radial direction through hole, activity is connected and locates clamping column (3), the activity multistage axis of cone (2) that is connected in the endoporus of axle (1), the multistage axis of cone (2) front end is threaded with the screwed hole on endoporus top, the multistage axis of cone (2) rear end is connected with end cap (4) the endoporus activity being fixedly connected on locating dowel rear end, the multistage axis of cone (2) middle part is provided with and every group of circular cone post that radial direction through hole is corresponding, each circular cone post is made up of nose circle frustum and rear end cylinder table, the circular cone cylinder of each circular cone post is connected with the bottom contact of location clamping column.
2. according to claim 1 for thin-wall long sleeve inwall self-centering fixture, it is characterized in that: the locating dowel of described axle (1) is connected with thin-walled elongated workpieces (7) endoporus matched in clearance.
3. according to claim 1 for thin-wall long sleeve inwall self-centering fixture, it is characterized in that: the described multistage axis of cone (2) rear end is provided with rotary handle (6).
4. according to claim 1 for thin-wall long sleeve inwall self-centering fixture, it is characterized in that: end face clamp nut (6) is threaded on described end cap (4) cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079390.1U CN203778798U (en) | 2014-02-23 | 2014-02-23 | Self centering clamp for inner wall of thin-walled long sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079390.1U CN203778798U (en) | 2014-02-23 | 2014-02-23 | Self centering clamp for inner wall of thin-walled long sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203778798U true CN203778798U (en) | 2014-08-20 |
Family
ID=51315026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420079390.1U Expired - Fee Related CN203778798U (en) | 2014-02-23 | 2014-02-23 | Self centering clamp for inner wall of thin-walled long sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203778798U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252032A (en) * | 2015-10-13 | 2016-01-20 | 永安市培鑫工贸有限公司 | Valve body clamp |
| CN112428145A (en) * | 2020-10-26 | 2021-03-02 | 宁夏天地奔牛实业集团有限公司 | Novel thin-wall sleeve part clamping and positioning device |
-
2014
- 2014-02-23 CN CN201420079390.1U patent/CN203778798U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252032A (en) * | 2015-10-13 | 2016-01-20 | 永安市培鑫工贸有限公司 | Valve body clamp |
| CN112428145A (en) * | 2020-10-26 | 2021-03-02 | 宁夏天地奔牛实业集团有限公司 | Novel thin-wall sleeve part clamping and positioning device |
| CN112428145B (en) * | 2020-10-26 | 2021-12-07 | 宁夏天地奔牛实业集团有限公司 | Thin-wall sleeve part clamping and positioning 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: 20140820 Termination date: 20150223 |
|
| EXPY | Termination of patent right or utility model |