CN105783796A - Measuring head of pneumatic instrument - Google Patents
Measuring head of pneumatic instrument Download PDFInfo
- Publication number
- CN105783796A CN105783796A CN201610148543.7A CN201610148543A CN105783796A CN 105783796 A CN105783796 A CN 105783796A CN 201610148543 A CN201610148543 A CN 201610148543A CN 105783796 A CN105783796 A CN 105783796A
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- CN
- China
- Prior art keywords
- hole
- measuring head
- external thread
- air
- inlet port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Arrangements Characterized By The Use Of Fluids (AREA)
Abstract
The invention relates to a measuring head of a pneumatic instrument. The measuring head comprises a measuring head body including an air hole end and a ventilating hole end. Slotting is carried out in the air hole end; a pair of symmetric circular venting holes is formed in the slot; and an internal thread is formed in the groove in an annular hole. The ventilating hole end includes an external thread end and an air inlet port; slotting is carried out in the external thread end; and a through hole is formed in the air inlet port and extends to the external thread end and is communicated with the slot in the external thread end. In the prior art, hole drilling is carried out on a measuring head in an integrated entity mode and three holes are perpendicular to each other to form an inverted T shape; and when the measuring head is thickened and dimension of the measuring head is increased, the processing becomes difficult. Therefore, on the one hand, the opened air hole distance is reduced by separating the measuring head; and on the other hand, the thickness of the hole formed inside the measuring head is reduced. And thus the hole drilling process is simplified; and a problem that hole drilling needs the high drilling pressure can be solved.
Description
Technical field
The invention belongs to mechanical field, particularly relate to a kind of pneumatic instrument and measure head.
Background technology
Air-gauge measuring principle is comparative measurement method.Its measuring method is that length signals is converted into airflow signal, by the buoy indicating value in graduated glass tubing, is called float type pneumatic measuring instrument；Or by pneumatic-to-current converter, gas signal is converted to the light beam indicating value that the signal of telecommunication is made up of luminous tube, it is called electronics pillar pneumatic measuring instrument.Air-gauge be a kind of can the assembled amount instrument of multiple stage, it and the collocation of different plug jets, it is possible to achieve the measurement of many kinds of parameters.Air-gauge possesses lot of advantages due to itself, so being widely used at machine industry.Its advantage is as follows:
1, measure the item is many, such as length, Geometrical Error etc., especially to some with mechanical gauge and the amount insoluble measurement of instrument, for instance: sounding hole internal diameter, hole diameter, narrow slot width etc., it is easier to realize with pneumatic gauging.
2, the amplification measuring instrument is higher, and personal error is less, without influence on certainty of measurement；Mechanical friction during work, so not having hysterisis error.
3, operational approach is simple, and reading is easy, it is possible to measure continuously, it is easy to find out that whether each size is qualified.
4, realize measuring head to be not directly contacted with measured surface, reduce the impact on measurement result of the measurement power, prevent plowing from measured piece surface simultaneously, the measurement of thin-walled parts and soft metal part is especially suitable.
5, due to non-cpntact measurement, measure head and can reduce abrasion, expanded service life.Adopt hose connection between air-gauge main body and measurement head, it may be achieved telemeasurement.
6, simple in construction, reliable operation, adjust, use and maintenance is quite convenient to.
Can measure the item: internal diameter, external diameter, groove width, two pitch-rows, the degree of depth, thickness, circularity, tapering, axiality, linearity, flatness, the depth of parallelism, perpendicularity, venting quality and sealing.
The many advantages of weight just because of pneumatic measuring instrument, when industrially measuring with pneumatic measuring instrument, it needs the measurement workpiece pneumatic instrument of auxiliary to measure head, a kind of gauge of the internal diameter or external diameter for detecting machine components, the inner supporting member of measurer etc., this inner supporting member needs precision high, internal orifice dimension symmetry is good, internal surface of hole perforate is homogeneous, common pneumatic instrument measures head due to the machine components miniaturization of detection, it is good that it has only to symmetry, steel beam column is opened three ports, circle gauge is enclosed within measurement head, change according to pneumatic instrument ball float determines whether gauge initial survey reaches standard.But, when the internal diameter of circular gauge is quite big, owing to the thickness of steel beam column increases, perforate needs the high drill of intensity or tapping hole equipment, namely allow to reach the purpose of perforate, but owing to requiring internal three through-hole structure stringency symmetrical, smoothness is high, can not reaching pneumatic instrument examination criteria after causing machine-shaping or error is relatively big, therefore solving to manufacture bigger pneumatic instrument measurement head becomes the great difficult problem of this area research personnel.
Summary of the invention
The invention provides a kind of air-gauge and measure head, it passes through the improvement in structure and perfect, solves above-mentioned technical problem.
Technical solution of the present invention:
Head measured by a kind of air-gauge, it is characterised in that include measuring head body, measures head body and includes ventilative nose end and ventilation nose end, described ventilative nose end internal recessing, is provided with a pair symmetrical ventilative circular hole, is equipped with female thread in groove in groove；Described ventilation nose end includes male end and inlet port, described male end internal recessing, and described inlet port is provided with through hole, and this through hole extends to male end and communicates with male end inside groove.
Beneficial effect: the measurement head of prior art is integral entity perforate, between three holes, exact vertical becomes inverted " t " type, when measuring head and thickening increasing, difficulty is brought to processing, reduce so the present invention makes to open pore distance by the mode of separating and measuring head on the one hand, make on the other hand to reduce the thickness measuring head internal openings, therefore, the technique simplifying perforate, solving perforate needs high the pressure of the drill problem.
Accompanying drawing explanation
Fig. 1 is prior art overall structure figure
Fig. 2 is overall structure figure of the present invention
Fig. 3 is end of thread schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, measuring head now with technology air-gauge is overall inseparable structure, and its ventilation nose end 5 and ventilation mouth 4 must strictly pass entity steel beam column, and want Striking symmetry, so when steel beam column thickness more comes thick, making machining precision and drill pressure bring difficulty.
As shown in Fig. 23, head measured by a kind of air-gauge of the present invention, including measuring head body 1, measures head body 1 and includes ventilative nose end 3 and ventilation nose end 2, ventilative nose end internal recessing, is provided with a pair symmetrical ventilative circular hole 31, is equipped with female thread 32 in groove in groove；Ventilation nose end 2 includes male end 22 and inlet port 21, male end 22 internal recessing, and inlet port center is provided with through hole 20, and this through hole 20 extends to male end and communicates with male end internal recessing.
Work process: ventilative nose end is screwed by internal and external threads with ventilation nose end, annular detection piece is inserted on measurement head, connected by airway and inlet port, gas enters internal recessing by through hole, whether qualified by a pair symmetrical air-vent and piezometer change-detection annular gauge, after rough detection is qualified, enter Precision measurement link.
Above description is in conjunction with further illustrating that the present invention is done by detailed description of the invention and accompanying drawing.But; the present invention obviously can implement with multiple other method being different from this description; those skilled in the art can carry out promoting, deducing according to actually used situation when without prejudice to present invention; therefore, the content of above-mentioned specific embodiment should not limit the protection domain that present invention determine that.
Claims (1)
1. head measured by an air-gauge, it is characterised in that include measuring head body, measures head body and includes ventilative nose end and ventilation nose end, described ventilative nose end internal recessing, is provided with a pair symmetrical ventilative circular hole, is equipped with female thread in groove in groove；
Described ventilation nose end includes male end and inlet port, described male end internal recessing, and described inlet port is provided with through hole, and this through hole extends to male end and communicates with male end inside groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148543.7A CN105783796A (en) | 2016-03-16 | 2016-03-16 | Measuring head of pneumatic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148543.7A CN105783796A (en) | 2016-03-16 | 2016-03-16 | Measuring head of pneumatic instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105783796A true CN105783796A (en) | 2016-07-20 |
Family
ID=56393721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610148543.7A Pending CN105783796A (en) | 2016-03-16 | 2016-03-16 | Measuring head of pneumatic instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105783796A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092185A (en) * | 2016-07-25 | 2016-11-09 | 苏州国量量具科技有限公司 | Head measured by a kind of pneumatic instrument of nanocrystal |
| CN106705900A (en) * | 2017-01-11 | 2017-05-24 | 浙江大学 | Hole form adaptive bore cylindricity pneumatic composite detection device and measuring method |
| CN109470184A (en) * | 2018-12-25 | 2019-03-15 | 中国航发哈尔滨轴承有限公司 | It is a kind of for measuring the electron column pneumoelectric micrometer of bearing bore diameter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2191410Y (en) * | 1994-03-05 | 1995-03-08 | 赵玉山 | Measuring head for pneumatic measurer |
| CN2660474Y (en) * | 2003-09-27 | 2004-12-01 | 卢作盘 | Pneumatic probe made of hard alloy |
| CN2938022Y (en) * | 2006-08-21 | 2007-08-22 | 杨磊 | Measuring device of air-gauge |
| CN202994109U (en) * | 2012-12-14 | 2013-06-12 | 宁波爱柯迪压铸有限公司 | Measuring head of pneumatic measuring instrument |
| CN204854667U (en) * | 2015-07-30 | 2015-12-09 | 西安法士特汽车传动有限公司 | Wide measuring device of non -contact keyway |
| CN205482844U (en) * | 2016-03-16 | 2016-08-17 | 苏州国量量具科技有限公司 | Air -gauge measuring head |
-
2016
- 2016-03-16 CN CN201610148543.7A patent/CN105783796A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2191410Y (en) * | 1994-03-05 | 1995-03-08 | 赵玉山 | Measuring head for pneumatic measurer |
| CN2660474Y (en) * | 2003-09-27 | 2004-12-01 | 卢作盘 | Pneumatic probe made of hard alloy |
| CN2938022Y (en) * | 2006-08-21 | 2007-08-22 | 杨磊 | Measuring device of air-gauge |
| CN202994109U (en) * | 2012-12-14 | 2013-06-12 | 宁波爱柯迪压铸有限公司 | Measuring head of pneumatic measuring instrument |
| CN204854667U (en) * | 2015-07-30 | 2015-12-09 | 西安法士特汽车传动有限公司 | Wide measuring device of non -contact keyway |
| CN205482844U (en) * | 2016-03-16 | 2016-08-17 | 苏州国量量具科技有限公司 | Air -gauge measuring head |
Non-Patent Citations (1)
| Title |
|---|
| 张善钟: "《精密仪器结构设计手册》", 30 April 2009 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092185A (en) * | 2016-07-25 | 2016-11-09 | 苏州国量量具科技有限公司 | Head measured by a kind of pneumatic instrument of nanocrystal |
| CN106705900A (en) * | 2017-01-11 | 2017-05-24 | 浙江大学 | Hole form adaptive bore cylindricity pneumatic composite detection device and measuring method |
| CN106705900B (en) * | 2017-01-11 | 2022-07-19 | 浙江大学 | Hole-shape-adaptive inner hole cylindricity pneumatic composite detection device and measurement method |
| CN109470184A (en) * | 2018-12-25 | 2019-03-15 | 中国航发哈尔滨轴承有限公司 | It is a kind of for measuring the electron column pneumoelectric micrometer of bearing bore diameter |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |