CN102519340B - Inner diameter measurement instrument - Google Patents
Inner diameter measurement instrument Download PDFInfo
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- CN102519340B CN102519340B CN201110412633.XA CN201110412633A CN102519340B CN 102519340 B CN102519340 B CN 102519340B CN 201110412633 A CN201110412633 A CN 201110412633A CN 102519340 B CN102519340 B CN 102519340B
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- swivel nut
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Abstract
The invention relates to an inner diameter measurement instrument, comprising a measurement instrument, a push rod and a measurement head, wherein one end of an instrument shell of the measurement instrument is fixedly connected with one end of a centering rod; the other end of the centering rod is telescopically connected with a centering pawl; the other end of the instrument shell is fixedly connected with one end of a connecting screw sleeve; the other end of the connecting screw sleeve is fixedly connected with one end of a measurement rod; the push rod passes through the connecting screw sleeve, the measurement instrument and the centering rod in sequence and one end of the push rod is fixedly connected with the measurement head; the measurement head is connected with a hollow sleeve at the other end of the centering rod by a fixing sheet; and the centering rod is provided with a handle. According to the inner diameter measurement instrument, the measurement head is directly arranged at one end of the push rod of a general measurement instrument, and the connecting screw sleeve is fixedly connected with the instrument shell and is arranged at the other end of the push rod and is coaxial with the push rod for accurately measuring the diameter of a large-size inner hole.
Description
Technical field
The invention belongs to surveying instrument technical field, be specifically related to a kind of inner diameter measurement instrument.
Background technology
At present, lever inner diameter measurement instrument (dial gauge, clock gauge) all uses lever principle, adopt the intermediate transmission parts such as lever, drive link to act on meter push rod, while causing measuring, accumulated error is larger, especially larger diameter internal bore measurement result is not ideal enough, and complicated structure, be therefore necessary to improve.
Summary of the invention
The technical matters that the present invention solves: a kind of inner diameter measurement instrument is provided, gauge head is directly installed on to push rod one end of common scale, connect swivel nut and be fixedly connected with watchcase, be arranged on the push rod other end, and coaxial with push rod, for Measurement accuracy large scale diameter of bore.
The technical solution used in the present invention: a kind of inner diameter measurement instrument, comprise scale, push rod and gauge head, watchcase one end of described scale is fixedly connected with centering bar one end, the described centering bar other end is connected with centering jaw scalability, the watchcase other end be connected swivel nut one end and be fixedly connected with, the described connection swivel nut other end is fixedly connected with measuring staff one end, described push rod is fixedly connected with gauge head with centering bar and push rod one end through connection swivel nut, scale successively, described gauge head is connected with centering bar other end empty set by stator, and described centering bar is provided with handle.
Wherein, the described centering bar other end is shaped with shoulder, described shoulder is provided with pressing spring, the step end face in the hole that described centering jaw middle part is shaped with compresses pressing spring and is feeling relieved on bar by hole empty set, described centering rod end surface is shaped with threaded hole II, external thread and threaded hole II on the boss II of described stator end screw, the through hole II clamping gauge head rear end external diameter on described stator.
Wherein, the described connection swivel nut other end is shaped with threaded hole III, and external thread and threaded hole III that described measuring staff one end is shaped with screw.
Further, between described connection swivel nut and measuring staff, be provided with extension rod.
Wherein, described extension rod is Step Shaft, and the external thread being shaped with on its little axle head screws with the threaded hole III being connected on swivel nut, and the external thread on threaded hole IV and the measuring staff being shaped with on its large axle head screws.
Further, on described centering bar, be shaped with boss I, on described boss I, be shaped with threaded hole I, the external thread that handle one end is shaped with and threaded hole I screw.
It is simple that the present invention compared with prior art has project organization, saves the intermediate transmission parts such as lever, drive link compared with existing lever meter, makes the measurement accumulated error of large scale diameter of bore less, and accuracy of measurement is higher.
Accompanying drawing explanation
Fig. 1 is structural front view of the present invention;
Fig. 2 is structure vertical view of the present invention;
Fig. 3 is that centering jaw A of the present invention is to view;
Fig. 4 is watchcase of the present invention and centering bar syndeton front view;
Fig. 5 is watchcase of the present invention and centering bar syndeton vertical view;
Fig. 6 is extension rod structural representation of the present invention;
Fig. 7 is stator structural representation of the present invention;
Fig. 8 is that the present invention uses view.
Embodiment
Below in conjunction with accompanying drawing, a kind of embodiment of the present invention is described.
A kind of inner diameter measurement instrument, comprise scale 6, push rod 2 and gauge head 1, watchcase 11 one end of described scale 6 are fixedly connected with centering bar 10 one end, described centering bar 10 other ends are connected with centering jaw 7 scalabilities, specifically, described centering bar 10 other ends are shaped with shoulder 14, described shoulder 14 is provided with pressing spring 5, the step end face in the hole 23 that described centering jaw 7 middle parts are shaped with compresses pressing spring 5 and is feeling relieved on bar 10 by hole 23 empty sets, self-centering when this structure can make meter to the hole measuring of different-diameter, gauge head 1 and measuring staff 3 two ends are on measured workpiece 24 diameter of bores, reach diameter of bore and measure object.Described centering bar 10 end faces are shaped with threaded hole II15, and external thread and threaded hole II15 on described stator 8 lug bosses at end part II16 screw, the through hole II17 clamping gauge head 1 rear end external diameter on described stator 8.Watchcase 11 other ends be connected swivel nut 4 one end and be fixedly connected with, described connection swivel nut 4 other ends are fixedly connected with measuring staff 3 one end, specifically, described connection swivel nut 4 other ends are shaped with threaded hole III19, and external thread and threaded hole III19 that described measuring staff 3 one end are shaped with screw.Described push rod 2 is fixedly connected with gauge head 1 through connecting swivel nut 4, scale 6 and centering bar 10 and push rod 2 one end successively, described gauge head 1 is connected with centering bar 10 other end empty sets by stator 8, described centering bar 10 is provided with handle 9, specifically, on described centering bar 10, be shaped with boss I12, on described boss I12, be shaped with threaded hole I13, external thread and threaded hole I13 that handle 9 one end are shaped with screw.
For reaching the object of measuring larger diameter hole, between described connection swivel nut 4 and measuring staff 3, be provided with extension rod 18.Described extension rod 18 is Step Shaft, and the external thread being shaped with on its little axle head 20 screws with the threaded hole III19 being connected on swivel nut 4, and the external thread on threaded hole IV22 and the measuring staff 3 being shaped with on its large axle head 21 screws.One group of measuring staff that measuring staff 3 is designed to take meter effective travel as difference, length is different, if desired, installs extension rod 18 additional between swivel nut 4 and lengthens measuring staff with being connected at measuring staff 3, can realize the hole measuring of larger diameter scope.
Using method: shown in Fig. 1～Fig. 6, the present invention is comprised of gauge head 1, push rod 2, scale 6 (common survey table), measuring staff 3, connection swivel nut 4, pressing spring 5, centering jaw 7, stator 8, handle 9, centering bar 10, extension rod 18.Connect swivel nut 4 and be fixedly connected with watchcase 11, require the screw thread of connection swivel nut 4 coaxial with push rod 2, guarantee the right alignment of measuring staff 3 and gauge head 1.On measuring staff 3, connection swivel nut 4, extension rod 18, internal and external threads is designed to same specification everywhere.According to the difference of measured workpiece 24 interior hole dimensions, measuring staff 3 can be directly installed on and connect on swivel nut 4, also can between swivel nut 4, be threaded connection installation extension rod 18 with being connected at measuring staff 3.Centering bar 10 is fixedly connected with watchcase 11, and guarantees that centering bar 10 cylindrical C are coaxial with push rod 2, guarantees the right alignment of gauge head 1 and centering jaw 7.Threaded hole I13 on centering bar 10 is for mounting handle 9, centering jaw 7 empty sets are on centering bar 10, between centering jaw 7 and centering bar 10, pressing spring 5 is installed, installation fixing piece 8, make the end face of stator 8 and centering jaw 7 end faces against the through hole I23 that keeps centering jaw 7 with centering bar 10 cylindricals in mated condition, through hole II17 and push rod 2 coaxial (Fig. 2, Fig. 7) after installation fixing piece 8 on it.The effect of pressing spring 5 is to measure to remain that it contacts with endoporus during diameter of bore and reach self centering object, as shown in Figure 8.
Feel relieved bar 10 of embodiment 2. is made integral structure with watchcase 11, connects swivel nut 4 and also makes integral structure with watchcase 11, and remainder is with embodiment 1.
Above-described embodiment, is preferred embodiment of the present invention, is not used for limiting the scope of the present invention, and the equivalence of being done with content described in the claims in the present invention therefore all changes, within all should being included in the claims in the present invention scope.
Claims (1)
1. an inner diameter measurement instrument, comprise scale (6), push rod (2) and gauge head (1), it is characterized in that: watchcase (11) one end of described scale (6) is fixedly connected with centering bar (10) one end, described centering bar (10) other end is connected with centering jaw (7) scalability, watchcase (11) other end be connected swivel nut (4) one end and be fixedly connected with, described connection swivel nut (4) other end is fixedly connected with measuring staff (3) one end, described push rod (2) is successively through connecting swivel nut (4), scale (6) is fixedly connected with gauge head (1) with centering bar (10) and push rod (2) one end, described gauge head (1) is connected with centering bar (10) other end empty set by stator (8), described centering bar (10) is provided with handle (9), described centering bar (10) other end is shaped with shoulder (14), described shoulder (14) is provided with pressing spring (5), the step end face in the hole (23) that described centering jaw (7) middle part is shaped with compresses pressing spring (5) and is feeling relieved on bar (10) by hole (23) empty set, described centering bar (10) end face is shaped with threaded hole II (15), external thread in described stator (8) lug bosses at end part II (16) and threaded hole II (15) screw, through hole II (17) clamping gauge head (1) the rear end external diameter on described stator (8), described connection swivel nut (4) other end is shaped with threaded hole III (19), and external thread and threaded hole III (19) that described measuring staff (3) one end is shaped with screw, between described connection swivel nut (4) and measuring staff (3), be provided with extension rod (18), described extension rod (18) is Step Shaft, and the external thread being shaped with on its little axle head (20) screws with the threaded hole III (19) being connected on swivel nut (4), and the threaded hole IV (22) being shaped with on its large axle head (21) screws with the external thread on measuring staff (3), on described centering bar (10), be shaped with boss I (12), be shaped with threaded hole I (13) in described boss I (12), external thread and threaded hole I (13) that handle (9) one end is shaped with screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412633.XA CN102519340B (en) | 2011-12-12 | 2011-12-12 | Inner diameter measurement instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412633.XA CN102519340B (en) | 2011-12-12 | 2011-12-12 | Inner diameter measurement instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102519340A CN102519340A (en) | 2012-06-27 |
| CN102519340B true CN102519340B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110412633.XA Active CN102519340B (en) | 2011-12-12 | 2011-12-12 | Inner diameter measurement instrument |
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| CN (1) | CN102519340B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575185A (en) * | 2012-07-27 | 2014-02-12 | 吴锡锋 | Portable large-diameter inner hole detecting instrument |
| CN108827120B (en) * | 2018-09-05 | 2024-02-09 | 广西玉柴机器股份有限公司 | Internal groove diameter measuring device |
| CN110726355B (en) * | 2019-11-19 | 2021-09-24 | 临沂天方建设研究试验有限公司 | Pile hole aperture detection device capable of centering and retaining data |
| CN111473714A (en) * | 2020-06-09 | 2020-07-31 | 内蒙古科技大学 | Hand-held roll gap instrument |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4045877A (en) * | 1976-03-11 | 1977-09-06 | Sunnen Products Company | Retractable dial bore gauge |
| CN87202575U (en) * | 1987-02-23 | 1988-01-13 | 田新华 | Multi-use inside diameter gauge |
| CN2705773Y (en) * | 2004-05-25 | 2005-06-22 | 焦作工学院 | Internal diameter measurer |
| CN201583230U (en) * | 2009-11-02 | 2010-09-15 | 严方 | Dedicated check tool for large-inner diameter size |
| CN201795755U (en) * | 2010-08-30 | 2011-04-13 | 常州市第八纺织机械有限公司 | Internal diameter measuring instrument |
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2011
- 2011-12-12 CN CN201110412633.XA patent/CN102519340B/en active Active
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| Publication number | Publication date |
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| CN102519340A (en) | 2012-06-27 |
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Effective date of registration: 20220915 Address after: No. 87, Middle Street West Road, Pingchuan Street, Wuping County, Longyan City, Fujian Province, 361000 Patentee after: Fujian Huizhi Digital Tongda Technology Co.,Ltd. Address before: 721006 No. 70 Qing Jiang Road, Shaanxi, Baoji Patentee before: SHAANXI BAOCHENG AVIATION INSTRUMENT Co.,Ltd. |