CN102889870B - Positioning and centering mechanism - Google Patents
Positioning and centering mechanism Download PDFInfo
- Publication number
- CN102889870B CN102889870B CN201210405547.0A CN201210405547A CN102889870B CN 102889870 B CN102889870 B CN 102889870B CN 201210405547 A CN201210405547 A CN 201210405547A CN 102889870 B CN102889870 B CN 102889870B
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- clamp
- grip base
- spring
- straight pin
- cylinder
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Abstract
The invention relates to a positioning and centering mechanism. A first clamping block is adopted for being connected to a clamping base through a first cylindrical pin; a first spring is arranged between the first clamping block and the clamping base; a second clamping block is connected to the clamping base through a second cylindrical pin; a second spring is arranged between the second clamping block and the clamping base; ejection rods are arranged in a first clamping block groove and a second clamping block groove, and pass through unthreaded holes in the clamping base and are connected with connecting sleeves; an air cylinder is fixed on an air cylinder placing seat; a piston rod end of the air cylinder is connected with the connecting sleeves; and the air cylinder placing seat is fixed on a measuring mechanism. The positioning and centering mechanism provided by the invention is compact and reasonable in structure, can rapidly position measured parts accurately, effectively reduces the measurement error, and improves repeat accuracy and measurement data accuracy.
Description
Technical field
The present invention relates to a kind of location Fen Zhong mechanism, specifically with the feature of tested part for reference element is located, correlating factor precision measure, belongs to and measures inspection technology field.
Background technology
In prior art, with specific feature location normally by the maximum material boundary shape localization of simulation reference characteristic, reference characteristic is as the elements of fix of tested part, different tested part reference characteristic sizes is change in certain margin tolerance, so can gap be produced when measurement and positioning coordinates, when particularly reference characteristic dimensional tolerance range is large, the tolerance clearance produced is also larger, the centre of location will depart from the center of tested part reference characteristic like this, when causing measurement, repeatable accuracy is poor, and measurement data is inaccurate.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, provide a kind of location Fen Zhong mechanism, this Fen Zhong mechanism can adjust the centre of location automatically, reaches automatic center location, improves positioning precision.
According to technical scheme provided by the invention, location Fen Zhong mechanism comprises grip base, the first straight pin, the first clamp, the first spring, the second spring, the second clamp, the second straight pin, push rod, adapter sleeve, cylinder mounting yoke and cylinder; Described first clamp is connected on grip base by the first straight pin, and the first clamp and the first straight pin clearance fit, can relatively rotate, be provided with the first spring between the first clamp and grip base; Second clamp is connected on grip base by the second straight pin, and the second clamp and the second straight pin clearance fit, be provided with the second spring between the second clamp and grip base; Described first clamp is provided with the first clamp groove, described second clamp is provided with the second clamp groove, push rod is provided with in first clamp groove and the second clamp groove, push rod is connected with adapter sleeve through unthreaded hole on grip base, and grip base is fixed by screws on measuring mechanism; Cylinder is fixed in cylinder mounting yoke, and the tailpiece of the piston rod of cylinder is connected with adapter sleeve, and the piston rod of cylinder, adapter sleeve and push rod are connected, and cylinder mounting yoke is fixed on measuring mechanism.
Described grip base is provided with boss, and described boss and measuring mechanism A accurately locate.
Compared with the prior art the present invention has the following advantages:
Compact conformation of the present invention, rationally, measured part can be made fast accurately to locate, effectively reduce measuring error, improve repeatable accuracy and measurement data accuracy.
Accompanying drawing explanation
Fig. 1 is structural front view of the present invention.
Fig. 2 is structure vertical view of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1 and Figure 2, the present invention is primarily of compositions such as grip base 1, screw 2, first straight pin 3, first clamp 4, first spring 5, spring 6, second clamp 7, second straight pin 8, screw 9, push rod 10, adapter sleeve 11, cylinder mounting yoke 12, nut 13, cylinders 14.
First clamp 4 is connected on grip base 1 by the first straight pin 3, and the first clamp 4 and the first straight pin 3 clearance fit, can relatively rotate, be provided with the first spring 5 between the first clamp 4 and grip base 1; Second clamp 7 is connected on grip base 1 by the second straight pin 8, and the second clamp 7 and the second straight pin 8 clearance fit, can relatively rotate, be provided with the second spring 6 between the second clamp 7 and grip base 1; Described first clamp is provided with the first clamp groove 18, described second clamp 7 is provided with the second clamp groove 17, push rod 10 is provided with in first clamp groove 18 and the second clamp groove 17, push rod 10 is connected with adapter sleeve 11 through unthreaded hole 16 on grip base, and grip base 1 is fixed by screws on measuring mechanism; Cylinder 14 is fixed in cylinder mounting yoke 12, and the tailpiece of the piston rod of cylinder 14 is connected with adapter sleeve 11, and adopt nut 13 to screw, the piston rod of cylinder 14, adapter sleeve 11 and push rod 10 are connected, and cylinder mounting yoke 12 is fixed on measuring mechanism.
First clamp 4 contacts measured part with the second clamp 7, first spring 5 plays reset role the first clamp 4 after measuring, second spring 6 plays reset role the second clamp 7 after measuring, screw 2 is to the first clamp 4 position-limiting actions, and screw 9 is to the second clamp 7 position-limiting actions.Boss 15 and the measuring mechanism A of grip base accurately locate, thus ensure that in location, in sub-agencies and measuring mechanism, each correlating factor is accurately located.
Principle of work of the present invention and the course of work
The tailpiece of the piston rod of cylinder 14 is connected with push rod 10 by adapter sleeve 11, the piston rod of cylinder 14 moves downward, push rod 10 is driven to move downward, push rod 10 makes the first clamp respectively by the groove 18 of the first clamp and the groove 17 of the second clamp, the second clamp produces motion, under the first clamp and the second clamp acting in conjunction, measured part is moved, thus makes the center superposition of the reference characteristic center of measured part and sub-agencies in location.
Claims (1)
1. locate a Fen Zhong mechanism, it is characterized in that: comprise grip base (1), the first straight pin (3), the first clamp (4), the first spring (5), the second spring (6), the second clamp (7), the second straight pin (8), push rod (10), adapter sleeve (11), cylinder mounting yoke (12), cylinder (14); Described first clamp (4) is connected on grip base (1) by the first straight pin (3), first clamp (4) and the first straight pin (3) clearance fit, can relatively rotate, between the first clamp (4) and grip base (1), be provided with the first spring (5); Second clamp (7) is connected on grip base (1) by the second straight pin (8), and the second clamp (7) and the second straight pin (8) clearance fit, be provided with the second spring (6) between the second clamp (7) and grip base (1); Described first clamp is provided with the first clamp groove (18), described second clamp (7) is provided with the second clamp groove (17), push rod (10) is provided with in first clamp groove (18) and the second clamp groove (17), push rod (10) is connected with adapter sleeve (11) through unthreaded hole on grip base (16), and grip base (1) is fixed by screws on measuring mechanism; Cylinder (14) is fixed in cylinder mounting yoke (12), the tailpiece of the piston rod of cylinder (14) is connected with adapter sleeve (11), the piston rod of cylinder (14), adapter sleeve (11) and push rod (10) are connected, and cylinder mounting yoke (12) is fixed on measuring mechanism;
Described grip base (1) is provided with boss (15), described boss (15) and measuring mechanism are accurately located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210405547.0A CN102889870B (en) | 2012-10-22 | 2012-10-22 | Positioning and centering mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210405547.0A CN102889870B (en) | 2012-10-22 | 2012-10-22 | Positioning and centering mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102889870A CN102889870A (en) | 2013-01-23 |
| CN102889870B true CN102889870B (en) | 2015-01-21 |
Family
ID=47533459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210405547.0A Active CN102889870B (en) | 2012-10-22 | 2012-10-22 | Positioning and centering mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102889870B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923819B (en) * | 2015-07-02 | 2017-06-13 | 庆铃汽车（集团）有限公司 | Spindle ring flange group hole and corner hole processing equipment |
| CN107687828B (en) * | 2016-08-04 | 2020-08-28 | 富鼎电子科技(嘉善)有限公司 | Center-dividing positioning checking fixture |
| CN107843226A (en) * | 2017-12-09 | 2018-03-27 | 无锡特恒科技有限公司 | Detent mechanism in point |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004223702A (en) * | 2002-11-29 | 2004-08-12 | Kosmek Ltd | Positioning device |
| CN2741715Y (en) * | 2004-12-02 | 2005-11-23 | 常州工业技术学院机电研究所 | Self contering clamp device for digital control cardan joint bell shell inner ball surface grinder |
| CN201086202Y (en) * | 2007-07-27 | 2008-07-16 | 东风汽车有限公司设备制造厂 | Device for implementing workpiece swing center-division positioning and fastening |
| CN201320688Y (en) * | 2008-11-23 | 2009-10-07 | 宁波职业技术学院 | Automatic centering fixture |
| ES1072879Y (en) * | 2010-06-24 | 2011-01-19 | Llambrich Prec S L | COMBINED HOLDER OF SELF-TIGHTENING AND TIGHTENING WITH WRENCH |
| CN201799882U (en) * | 2010-08-27 | 2011-04-20 | 邝锦富 | Bidirectional clamping mechanism |
| CN201900471U (en) * | 2010-12-09 | 2011-07-20 | 东风汽车有限公司 | Device for realizing horizontal middle positioning and clamping of lower cylinder body |
-
2012
- 2012-10-22 CN CN201210405547.0A patent/CN102889870B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102889870A (en) | 2013-01-23 |
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