CN2314341Y - Inside diameter measuring head with gear and spiral three-claw structure - Google Patents
Inside diameter measuring head with gear and spiral three-claw structure Download PDFInfo
- Publication number
- CN2314341Y CN2314341Y CN97247992U CN97247992U CN2314341Y CN 2314341 Y CN2314341 Y CN 2314341Y CN 97247992 U CN97247992 U CN 97247992U CN 97247992 U CN97247992 U CN 97247992U CN 2314341 Y CN2314341 Y CN 2314341Y
- Authority
- CN
- China
- Prior art keywords
- gear
- measuring head
- sleeve
- drive
- jaw
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
- G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/18—Micrometers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model belongs to an inside diameter measuring head with a gear and spiral type three-claw structure, which is used for a three-jaw inside diameter micrometer. A drive sleeve and a sliding sleeve are respectively arranged in an axial hole and a radial hole of a main body, a drive wheel and a driven wheel are respectively fixed on the drive sleeve and a screw rod, and the axial cords of the drive wheel and the driven wheel are intersected with 90DEG. When the drive sleeve is rotated, the drive wheel and the driven wheel are meshed and realize perpendicular reverse drive, the screw rod is driven by a gear to rotate, when the slide sleeve moves along the radial hole of the main body, measuring jaws on the sliding sleeve are contacted with a unit under test. A pin can prevent the rotation of the sliding sleeve. A screw nail can prevent the screw rod from falling off and cause the internal end surface of the screw rod to be connected with a steel ball in one end cover. The three measuring jaws are distributed in a circumferential way, the structural principles of the three measuring jaws are same, and the actions are simultaneous.
Description
The utility model belongs to measurement instrument, relates in particular to the three-jaw inner-diameter measuring head.
The measuring head of existing three-jaw micrometer inside caliper has two kinds of structures, and a kind of is that rotation and axially movable pagoda screw promotion measuring claw move the contact measured workpiece, and spring also remains the measuring claw withdrawal and contacts with the pagoda screw; Another kind is the cone that rotation and axially movable micrometric screw promote front end, and cone promotes measuring claw again and moves the contact measured workpiece, and spring makes the measuring claw withdrawal and remains with cone and contacts.The shortcoming of above-mentioned two kinds of structures is that difficulty of processing is big, measurement range is little, usually has only 18 millimeters measurement range, need increase the outside dimension and the length dimension of pagoda screw or cone as adding wide-measuring range, it is long that pagoda screw or cone will stretch out main body like this, is difficult for measuring the aperture size of blind hole and band seam, when measuring claw displacement is too big, the pressure of spring changes also very greatly, thereby causes dynamometry to change greatly, influences measuring accuracy.
The purpose of this utility model is exactly the shortcoming that overcomes above-mentioned existing three-jaw micrometer inside caliper, provides a kind of simple in structure, be easy to processing and manufacturing, and measurement range is big, three-jaw inner-diameter measuring head easy to use.
The purpose of this utility model is achieved in that drive sleeve and threaded sleeve are installed in respectively in the axial hole and radial hole of measuring head main body, driving gear is fixed on the drive sleeve, driven gear is fixed on the micrometric screw, and the axis angle of cut of the axis of driving gear and driven gear is 90 degree.When rotating drive sleeve, driving gear is with the driven gear engagement and realize vertical break-in transmission, at this moment, micrometric screw rotates under the drive of gear, while moves along the main body radial hole with the threaded sleeve that micrometric screw screws, make the measuring claw contact tested part hole wall on the threaded sleeve, the effect of straight pin is to prevent that threaded sleeve from rotating.Be fixed on the nose cone screw that plays the block effect on the end cap and can prevent that micrometric screw from deviating from and the inner face of micrometric screw is contacted with self-aligning spherical support in being fixed on end cap.Three measuring claws evenly distribute on circumference, and the identical and action of its structural principle is synchronous.
The utility model compact conformation is convenient to processing and manufacturing, and measurement range is big, and maximum can surpass 100 millimeters, mainly is applicable to the precision measurement in hole, especially is fit to measure the aperture size of blind hole and band seam.The utility model is applicable to mechanical three-jaw micrometer inside caliper, measurers such as electronic digital display three-jaw micrometer inside caliper.
Fig. 1 is a front view of the present utility model.
Fig. 2 is a side view of the present utility model.
Fig. 3 is the structural representation of embodiment 1 of the present utility model.
Fig. 4 is the structural representation of embodiment 2 of the present utility model.
The embodiment that provides below in conjunction with accompanying drawing describes in further detail the utility model:
Embodiment 1: Fig. 3 adopts electronic digital display three-jaw internal diameter of the present utility model to divide chi equally, when using this three-jaw micrometer inside caliper, rotate device for measuring force (17), under the effect of dynamometry, moving grid axle (12) rotates thereupon, dynamic grid base (15) is fixed on the moving grid axle (12), moving grid (14) is fixed on the dynamic grid base (15), moving grid (14), dynamic grid base (15) rotates synchronously with moving grid axle (12), the main body (11) that is fixed on fixed grid (13) goes up motionless, and moving grid (14) and fixed grid (13) are capacitor grid transducer, by relatively rotating the generation electric signal, moving grid axle (12) front end is inserted in the groove (10) of drive sleeve (8) afterbody, makes one play rotation.Drive sleeve (8) and threaded sleeve (3) are installed in respectively in the axial hole and radial hole of measuring head main body (9), driving gear (7) is fixed on the drive sleeve (8), driven gear (6) is fixed on the micrometric screw (4), and the axis angle of cut of the axis of driving gear (7) and driven gear (6) is 90 degree.When rotating drive sleeve (8), driving gear (7) meshes and realizes vertical break-in transmission with driven gear (6), at this moment, micrometric screw (4) rotates under the drive of gear, while moves along the main body radial hole with the threaded sleeve (3) that micrometric screw (4) screws, make the measuring claw contact tested part hole wall on the threaded sleeve (3), the effect of straight pin (1) is to prevent that threaded sleeve (3) from rotating.Be fixed on nose cone screw (2) on the end cap and can prevent that micrometric screw (4) from deviating from and the inner face of micrometric screw (4) is contacted with steel ball (5) in being fixed on end cap.Three measuring claws evenly distribute on circumference, and the identical and action of its structural principle is synchronous.Convert the electrical signal to digital signal and demonstrate tested aperture size by digital display assembly (16).
Embodiment 2: Fig. 4 adopts mechanical three-jaw micrometer inside caliper of the present utility model, when using this milscale, rotate device for measuring force (21), under the effect of dynamometry, screw rod (19) is with its rotation, and the microdrum (20) that is fixed on the screw rod (19) also rotates synchronously, and produce straight-line displacement with the dial sleeve (18) that screw rod (19) screws this moment, screw rod (19) front end is inserted in the groove (10) of drive sleeve (8) afterbody, drives drive sleeve (8) during rotation and rotates together.Drive sleeve (8) and threaded sleeve (3) are installed in respectively in the axial hole and radial hole of measuring head main body (9), driving gear (7) is fixed on the drive sleeve (8), driven gear (6) is fixed on the micrometric screw (4), and the axis angle of cut of the axis of driving gear (7) and driven gear (6) is 90 degree.When rotating drive sleeve (8), driving gear (7) meshes and realizes vertical break-in transmission with driven gear (6), at this moment, micrometric screw (4) rotates under the drive of gear, while moves along the main body radial hole with the threaded sleeve (3) that micrometric screw (4) screws, make the measuring claw contact tested part hole wall on the threaded sleeve (3), the effect of straight pin (1) is to prevent that threaded sleeve (3) from rotating.The step (2 ') that the block effect also can be set in the radial hole of main body (9) is to prevent micrometric screw (4) and deviate from and the inner face of micrometric screw (4) is contacted with sphere (5) on the end cap.Three measuring claws evenly distribute on circumference, and the identical and action of its structural principle is synchronous.Read tested aperture size by the scale on dial sleeve (18) and the microdrum (20)
Claims (3)
1, the spiral three-jaw inner-diameter measuring head of a kind of gear, it is characterized in that drive sleeve (8) and threaded sleeve (3) are installed in respectively in the axial hole and radial hole that the measuring head master stops (9), driving gear (7) is fixed on the drive sleeve (8), driven gear (6) is fixed on the micrometric screw (4), the axis angle of cut of the axis of driving gear and driven gear is 90 degree, driving gear (7) and driven gear (6) Vertical Meshing, the outer end is that measuring claw threaded sleeve (3) screws on micrometric screw (4), one end of straight pin (1) is fixed in the radial hole of main body (9), the other end places in the chute of threaded sleeve (3), the nose cone screw (2) that plays the block effect is fixed on the end cap, the inner face centre bit of micrometric screw (4) is equipped with a self-aligning spherical support (5), three measuring claws are uniform on circumference, and its structure is identical
2, the spiral three-jaw inner-diameter measuring head of gear as claimed in claim 1 is characterized in that described nose cone screw (2) is arranged on the interior step (2) of radial hole of main body (9).
3, the spiral three-jaw inner-diameter measuring head of gear as claimed in claim 1 or 2 is characterized in that the measuring head that described three-jaw inner-diameter measuring head is mechanical three-jaw micrometer inside caliper or the measuring head of electronic digital display three-jaw micrometer inside caliper.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97247992U CN2314341Y (en) | 1997-09-08 | 1997-09-08 | Inside diameter measuring head with gear and spiral three-claw structure |
| DE29880111U DE29880111U1 (en) | 1997-09-08 | 1998-08-21 | Aperture measuring head with three measuring heads driven by toothed wheels |
| PCT/CN1998/000170 WO1999013288A1 (en) | 1997-09-08 | 1998-08-21 | Internal measuring head with three probes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97247992U CN2314341Y (en) | 1997-09-08 | 1997-09-08 | Inside diameter measuring head with gear and spiral three-claw structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2314341Y true CN2314341Y (en) | 1999-04-14 |
Family
ID=5213430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97247992U Expired - Fee Related CN2314341Y (en) | 1997-09-08 | 1997-09-08 | Inside diameter measuring head with gear and spiral three-claw structure |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN2314341Y (en) |
| DE (1) | DE29880111U1 (en) |
| WO (1) | WO1999013288A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7765710B2 (en) | 2008-04-03 | 2010-08-03 | Foxnum Technology Co., Ltd. | Apparatus and method for measuring diameter of hole |
| CN102749059A (en) * | 2012-07-20 | 2012-10-24 | 上海交通大学 | Dual-feed type device for measuring roundness and cylindricity |
| TWI393856B (en) * | 2008-05-02 | 2013-04-21 | Foxnum Technology Co Ltd | Measuring apparatus for aperture |
| CN103822557A (en) * | 2014-03-18 | 2014-05-28 | 金陵科技学院 | Double-marble balanced centering type internal dial gauge |
| CN105043219A (en) * | 2015-08-09 | 2015-11-11 | 共享装备股份有限公司 | Roundness detection device and method |
| CN108656243A (en) * | 2018-04-25 | 2018-10-16 | 卢园园 | A kind of timber coring lathe tool |
| CN109554512A (en) * | 2017-09-27 | 2019-04-02 | 宝山钢铁股份有限公司 | A kind of tuyere medium sleeve inner diameter measuring device |
| CN110202440A (en) * | 2019-07-08 | 2019-09-06 | 卢园园 | One kind being used for small diameter tube welding groove machining tool |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH84647A (en) * | 1919-06-28 | 1920-08-02 | Arnold Kohly | Micrometer |
| US1562923A (en) * | 1922-05-15 | 1925-11-24 | James G Sisson | Measuring device |
| CH403312A (en) * | 1963-07-08 | 1965-11-30 | Pfister Walter | Inside micrometer |
| FR2496254A1 (en) * | 1980-12-15 | 1982-06-18 | Duhoux Richard | Micrometer gauge for measuring internal diameters - has interchangeable heads extending range, fitting over conical support on micrometer shaft |
| SU1381320A1 (en) * | 1985-07-30 | 1988-03-15 | Предприятие П/Я Р-6702 | Internal micrometer |
-
1997
- 1997-09-08 CN CN97247992U patent/CN2314341Y/en not_active Expired - Fee Related
-
1998
- 1998-08-21 WO PCT/CN1998/000170 patent/WO1999013288A1/en active Application Filing
- 1998-08-21 DE DE29880111U patent/DE29880111U1/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7765710B2 (en) | 2008-04-03 | 2010-08-03 | Foxnum Technology Co., Ltd. | Apparatus and method for measuring diameter of hole |
| TWI393856B (en) * | 2008-05-02 | 2013-04-21 | Foxnum Technology Co Ltd | Measuring apparatus for aperture |
| CN102749059A (en) * | 2012-07-20 | 2012-10-24 | 上海交通大学 | Dual-feed type device for measuring roundness and cylindricity |
| CN102749059B (en) * | 2012-07-20 | 2015-01-28 | 上海交通大学 | Dual-feed type device for measuring roundness and cylindricity |
| CN103822557A (en) * | 2014-03-18 | 2014-05-28 | 金陵科技学院 | Double-marble balanced centering type internal dial gauge |
| CN105043219B (en) * | 2015-08-09 | 2018-06-22 | 共享装备股份有限公司 | Circularity detection device and method |
| CN105043219A (en) * | 2015-08-09 | 2015-11-11 | 共享装备股份有限公司 | Roundness detection device and method |
| CN109554512A (en) * | 2017-09-27 | 2019-04-02 | 宝山钢铁股份有限公司 | A kind of tuyere medium sleeve inner diameter measuring device |
| CN109554512B (en) * | 2017-09-27 | 2020-09-25 | 宝山钢铁股份有限公司 | Inner diameter measuring device for tuyere medium sleeve |
| CN108656243A (en) * | 2018-04-25 | 2018-10-16 | 卢园园 | A kind of timber coring lathe tool |
| CN108656243B (en) * | 2018-04-25 | 2020-07-03 | 嘉兴德基机械设计有限公司 | Core lathe tool is got to timber |
| CN110202440A (en) * | 2019-07-08 | 2019-09-06 | 卢园园 | One kind being used for small diameter tube welding groove machining tool |
| CN110202440B (en) * | 2019-07-08 | 2021-02-12 | 烟台是高装备科技有限公司 | Tool for machining welding groove of small-diameter pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| DE29880111U1 (en) | 1999-09-02 |
| WO1999013288A1 (en) | 1999-03-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |