CN201979314U - Centring body - Google Patents
Centring body Download PDFInfo
- Publication number
- CN201979314U CN201979314U CN2010205518353U CN201020551835U CN201979314U CN 201979314 U CN201979314 U CN 201979314U CN 2010205518353 U CN2010205518353 U CN 2010205518353U CN 201020551835 U CN201020551835 U CN 201020551835U CN 201979314 U CN201979314 U CN 201979314U
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- Prior art keywords
- positioning
- positioning boss
- hole
- utility
- model
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- Expired - Fee Related
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Abstract
The utility model discloses a centring body including a positioning boss which is provide with an axial through hole along the center; an internal expansion bolt which has a conical bottom is arranged in the through hole; three positioning holes are transversely arranged on the circumference of the positioning boss in an uniform distribution; each positioning hole is provided with a positioning column which has a semi-circular end at one end, the positioning columns and the positioning boss are connected by guiding nuts, and the positioning columns and the guiding nuts are connected via springs; three positioning bolts are further arranged on the positioning boss. The centring body is a self-centering jig which has the properties of simple structure, economy, durability, safety and reliability; in addition, the jig has the characteristic of fast and reliable centing by using the three-point positioning principle and the internal expansion spindle structure.
Description
Technical field
The utility model relates to the quick centering machine in a kind of frock clamp, belongs to field of machining and machinebuilding technology.
Background technology
Machining manufacturing is at present all developing to mass, scale direction; centralizer complex structure on the market; service life is very short; therefore adopting the frock clamp of highly effective is the important channel of enhancing productivity; reasonably frock clamp can significantly reduce the non-cutting time of operation, improves the production efficiency of flow production line.
The utility model content
At the deficiency that prior art exists, technical problem to be solved in the utility model is, a kind of centering body is provided, have simple in structure, economy and durability, safe and reliable, the characteristics of practicality and high efficiency.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is, a kind of centering body comprises positioning boss, and described positioning boss is provided with axial through hole along the center; Be provided with the bottom in the described through hole and be the interior bloated bolt of taper; Described positioning boss circumference is uniform three locating holes laterally; Be equipped with the reference column that an end is a cup head in the described locating hole, be connected by spigot nut between reference column and the positioning boss, be provided with spring between reference column and the spigot nut; Also be provided with three bolts on the described positioning boss.
Optimize above-mentioned centering body, interference fit between described spigot nut and the positioning boss.
The utility model is a kind of self-centering anchor clamps, have simple in structure, economy and durability, safe and reliable, utilization three-point fix principle, the bolt arrangement that expands in adopting, thereby make it have the characteristics of fast and reliable centering.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described;
Fig. 1 is a cutaway view of the present utility model;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is a use schematic diagram of the present utility model.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the utility model is a kind of centering body, comprises positioning boss 2, and described positioning boss 2 is provided with axial through hole 6 along the center; Be provided with the bottom in the described through hole 6 and be the interior bloated bolt 1 of taper; Described positioning boss 2 circumference are uniform three locating holes 7 laterally; Being equipped with an end in the described locating hole 7 is the reference column 4 of cup head, is connected by spigot nut 5 between reference column 4 and the positioning boss 2, is provided with spring 3 between reference column 4 and the spigot nut 5; Also be provided with three bolts 8 on the described positioning boss 2.Interference fit between described spigot nut 5 and the positioning boss 2.During use, first Centering Clamping: carry out coarse positioning with the centering body appearance profile, limited post is spacing, and the gap bridge case is lifted on the frock, and the screwed in place bolt is eliminated the gap, location then, has just determined the center of dead eye, and clamping platen is processed.After machining, bolt is unclamped, three reference columns are self-return under the effect of return spring, unclamps pressing plate, can smoothly the gap bridge case be taken off.
The main points of this utility model design are: the mandrel tapering that 1, expands in the appropriate design, and guarantee that three reference columns can reliably locate, and can guarantee suitable force increasing ratio, make it just can reliable grip centering under the situation of the less moment of face of effect; 2, appropriate design return spring is guaranteed reliably return of three reference columns, makes things convenient for the loading and unloading of workpiece, reduces unproductive time, thereby improves productive temp; 3, the length of appropriate design three reference columns guarantees that it has rational gripping range, thereby guarantees reliable grip centering; 4, the appearance profile of appropriate design positioning body can not damage three reference columns when guaranteeing workpiece is installed, and guarantee that it can play the coarse positioning effect, the wearing and tearing when reducing centering body centering center; 5, the material of bloated mandrel and three reference columns in the choose reasonable is determined the rational heat treatment requirement, guarantees that it has anti-wear performance preferably.
Certainly, above-mentioned explanation is not to be to restriction of the present utility model, and the utility model also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present utility model, the variation of making, remodeling, interpolation or replacement all should belong to protection domain of the present utility model.
Claims (2)
1. centering body, it is characterized in that: comprise positioning boss, described positioning boss is provided with axial through hole along the center; Be provided with the bottom in the described through hole and be the interior bloated bolt of taper; Described positioning boss circumference is uniform three locating holes laterally; Be equipped with the reference column that an end is a cup head in the described locating hole, be connected by spigot nut between reference column and the positioning boss, be provided with spring between reference column and the spigot nut; Also be provided with three bolts on the described positioning boss.
2. centering body according to claim 1 is characterized in that: interference fit between described spigot nut and the positioning boss.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010205518353U CN201979314U (en) | 2010-09-26 | 2010-09-26 | Centring body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010205518353U CN201979314U (en) | 2010-09-26 | 2010-09-26 | Centring body |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201979314U true CN201979314U (en) | 2011-09-21 |
Family
ID=44606782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010205518353U Expired - Fee Related CN201979314U (en) | 2010-09-26 | 2010-09-26 | Centring body |
Country Status (1)
Country | Link |
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CN (1) | CN201979314U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103047919A (en) * | 2012-12-25 | 2013-04-17 | 青特集团有限公司 | Axle housing self-centering special detecting tool |
CN106441131A (en) * | 2016-09-26 | 2017-02-22 | 中国工程物理研究院流体物理研究所 | Measurement head mechanism capable of measuring internal diameter of small-aperture smoothbore long pipe |
CN109079025A (en) * | 2018-06-26 | 2018-12-25 | 安徽昊方机电股份有限公司 | A kind of flexibly positioned core |
CN109807654A (en) * | 2019-01-11 | 2019-05-28 | 杭州联德精密机械股份有限公司 | A kind of universal cylinder workpiece processing frock |
-
2010
- 2010-09-26 CN CN2010205518353U patent/CN201979314U/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103047919A (en) * | 2012-12-25 | 2013-04-17 | 青特集团有限公司 | Axle housing self-centering special detecting tool |
CN106441131A (en) * | 2016-09-26 | 2017-02-22 | 中国工程物理研究院流体物理研究所 | Measurement head mechanism capable of measuring internal diameter of small-aperture smoothbore long pipe |
CN106441131B (en) * | 2016-09-26 | 2018-11-27 | 中国工程物理研究院流体物理研究所 | A kind of head mechanism of the long barrel internal diameter of measurable small-bore smooth bore |
CN109079025A (en) * | 2018-06-26 | 2018-12-25 | 安徽昊方机电股份有限公司 | A kind of flexibly positioned core |
CN109807654A (en) * | 2019-01-11 | 2019-05-28 | 杭州联德精密机械股份有限公司 | A kind of universal cylinder workpiece processing frock |
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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: 20110921 Termination date: 20150926 |
|
EXPY | Termination of patent right or utility model |