CN202814297U - Stepped-hole inner diameter measuring instrument - Google Patents
Stepped-hole inner diameter measuring instrument Download PDFInfo
- Publication number
- CN202814297U CN202814297U CN 201220399979 CN201220399979U CN202814297U CN 202814297 U CN202814297 U CN 202814297U CN 201220399979 CN201220399979 CN 201220399979 CN 201220399979 U CN201220399979 U CN 201220399979U CN 202814297 U CN202814297 U CN 202814297U
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- China
- Prior art keywords
- sleeve
- lever
- open slot
- measuring instrument
- diameter measuring
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- Expired - Fee Related
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- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model provides a stepped-hole inner diameter measuring instrument, which comprises a gauge stand, a dial installed on the gauge stand, a lever connected with a measuring rod, and a sleeve connected with the lever, wherein the lever is inserted into the sleeve, and two movable measuring heads are installed at two ends of the sleeve respectively. The movable measuring heads comprise a first movable measuring head and a second measuring head, wherein the first movable measuring head is pressed against the lever, and the second movable measuring head is movably installed in the sleeve and away from the lever. The stepped-hole inner diameter measuring instrument provided by the utility model drives the second movable measuring head to slide in the sleeve through a limiting pin, thereby realizing measurement of the stepped-hole which has small inlet diameter and large measured-hole diameter, and increasing the measuring range of the inner diameter measuring instrument. In addition, the stepped-hole inner diameter measuring instrument is high in measurement precision, and can meet requirements of the production process.
Description
Technical field
The utility model relates to internal diameter measuring tool field, especially, relates to a kind of stepped hole internal diameter measuring instrument.
Background technology
The physical dimension in measuring workpieces aperture and the measuring tool of tolerance are called the internal diameter measuring tool.The internal diameter measuring tool can be divided into fixed and adjustable two kinds.Common version mainly contains: 1. internal diameter instrument support, 2. lever dial framework, 3. slide carriage dial framework, 4. special vernier caliper.Dial framework is by reading relative method measuring workpieces size, and vernier caliper is direct-reading methods measuring workpieces size.
The major defect of dial framework structure has: 1. activity head stroke is little, and the amount head can't be by arriving the position of tested metering-orifice under the top aperture; 2. the oversize generation of gauge rod swings and affects measuring accuracy; And the measuring accuracy of special vernier caliper is lower.
The utility model content
The utility model purpose is to provide a kind of stepped hole internal diameter measuring instrument, when solve measuring the large stepped hole of the little measured hole diameter of inlet diameter, and the technical matters of the aperture measuring measured hole that the amount head can't be by import.
For achieving the above object, according to an aspect of the present utility model, a kind of stepped hole internal diameter measuring instrument is provided, the sleeve that comprises gauge stand, is installed in the dial plate on the gauge stand, the lever that links to each other with gauge rod and links to each other with lever, lever inserts in the sleeve, it is characterized in that, two activity heads are installed respectively at the two ends of sleeve, wherein the activity head comprises the first activity head and the second activity head, lever is supported on the first activity crown, the second activity head is installed in the sleeve movably, and the second activity head is away from lever.
Further, lever is " L " type, comprises the first lever arm and second lever arm vertical with the first lever arm, the first lever arm contact gauge rod, the second lever arm contact the first activity head.
Further, sleeve is the cylinder of both ends open, and the lateral wall in the centre position of sleeve has groove, so that the second lever arm extend in the sleeve by groove.
Further, the place end of the installation second activity head of sleeve, level has rectangular translot on the lateral wall of sleeve, and the two ends of translot connect respectively the first open slot and the second open slot, and the first open slot communicates by translot with the second open slot.
Further, the first open slot and the second open slot be respectively along the circumference of sleeve open ° arc groove.
Further, spacer pin can slide at the first open slot, the second open slot and translot, and passes the first open slot, the second open slot or translot and be connected with the second activity head.
The utlity model has following beneficial effect: stepped hole internal diameter measuring instrument of the present utility model drives the second activity head by spacer pin and slides in sleeve, thereby realize the measurement of the stepped hole that inlet diameter is little, the measured hole diameter is large, increased the range that internal diameter measuring instrument is measured, and the degree of accuracy that the utility model is measured is higher, can satisfy the requirement of production technology.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.The below is described in further detail the utility model with reference to figure.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the stepped hole internal diameter measuring instrument of the utility model preferred embodiment;
Fig. 2 is the synoptic diagram at the described A of Fig. 1 place; And
Fig. 3 is the synoptic diagram at the described B-B of Fig. 2 place.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Referring to Fig. 1, preferred embodiment of the present utility model provides a kind of stepped hole internal diameter measuring instrument, is used for measuring the large stepped hole of the little measured hole diameter of inlet diameter.
Stepped hole internal diameter measuring instrument of the present utility model comprises gauge stand 10, be installed in the dial plate (accompanying drawing is not shown) on the gauge stand 10, be installed in the extension bar 80 of gauge stand 10 lower ends, be installed in the lever 30 that the gauge rod 20 of extension bar 80 inside links to each other with gauge rod 20, the sleeve 60 that links to each other with lever 30, lever 30 inserts in the sleeve 60, and extension bar 80, lever 30 and sleeve 60 couple together by fixing body 90, two activity heads are installed respectively at the two ends of sleeve 60, wherein the activity head comprises the first activity head 40 and the second activity head 50, the first activity head 40 contact levers 30, the second activity head 50 is installed in the sleeve 60 movably, and the second activity head 50 is away from described lever 30.
One end of the second activity head 50 stretches into the other end of sleeve 60, and the other end of the second activity head 50 stretches out from the second sleeve 60.Place end at the installation second activity head 50 of sleeve 60, level has rectangular translot 63 on the lateral wall of sleeve, the two ends of translot 63 connect respectively the first open slot 61 and the second open slot 62, the first open slots 61 communicate by translot 63 with the second open slot 62.Preferably, the first open slot 61 and the second open slot 62 are respectively 90 ° the arc groove of opening along the circumference of sleeve 60.Spacer pin 70 can slide at the first open slot 61, the second open slot 62 and translot 63, and pass the first open slot 61, the second open slot 62 or translot 63 and be connected with the second activity head 50, and can drive the second activity head 50 and move by stirring spacer pin 70.When spacer pin 70 is positioned at the first open slot 61 or the second open slot 62 places and not with translot 63 during in collinear position, can spacer pin 70 is fixing, the second activity head 50 is also thereupon fixing.When spacer pin 70 fixedly the time, can be measured measured hole at the first open slot 61 places with stepped hole internal diameter measuring instrument of the present utility model.
When using stepped hole internal diameter measuring instrument of the present utility model to measure the stepped hole that inlet diameter is little, the measured hole diameter is large, stir first and rotary spacing pin 70, so that spacer pin 70 is stuck on the second open slot 62 of sleeve 60, the length that the second activity head 50 of this moment stretches out sleeve 60 shortens, the whole range of stepped hole internal diameter measuring instrument of the present utility model shortens, so that sleeve 60 can be by the import of minor diameter, and arrive large diameter measured hole.Then stir spacer pin 70, so that spacer pin 70 arrives the first open slot 61 places through translot 63, and rotary spacing pin 70 is fixed the second activity head 50 so that spacer pin 70 is stuck on the first open slot 61, then read numerical value by dial plate, thereby judge according to numerical value whether the aperture meets technological requirement.
Stepped hole internal diameter measuring instrument of the present utility model drives the second activity head 50 in sleeve 60 interior slips by spacer pin 70, thereby realize the measurement of the stepped hole that inlet diameter is little, the measured hole diameter is large, increased the range that internal diameter measuring instrument is measured, and the utility model measuring accuracy is higher, can satisfy the requirement of production technology.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. stepped hole internal diameter measuring instrument, comprise gauge stand (10), be installed in dial plate, gauge rod (20), the lever (30) that links to each other with described gauge rod (20) on the described gauge stand (10) and the sleeve (60) that links to each other with described lever (30), described lever (30) inserts in the described sleeve (60), it is characterized in that
Two activity heads are installed respectively at the two ends of described sleeve (60), wherein said activity head comprises the first activity head (40) and the second activity head (50), described the first described lever of activity head (40) contact (30), described the second activity head (50) is installed in the described sleeve (60) movably, and described the second activity head (50) is away from described lever (30).
2. stepped hole internal diameter measuring instrument according to claim 1, it is characterized in that, described lever (30) is " L " type, comprise the first lever arm and second lever arm vertical with described the first lever arm, the described described gauge rod of the first lever arm contact (20), described the first activity head (40) of described the second lever arm contact.
3. stepped hole internal diameter measuring instrument according to claim 2, it is characterized in that, described sleeve (60) is the cylinder of both ends open, and the lateral wall in the centre position of described sleeve (60) has groove, so that described the second lever arm extend in the described sleeve (60) by described groove.
4. stepped hole internal diameter measuring instrument according to claim 3, it is characterized in that, the place end of described the second activity head (50) of the installation of described sleeve (60), level has rectangular translot (63) on the lateral wall of described sleeve (60), the two ends of described translot (63) connect respectively the first open slot (61) and the second open slot (62), and described the first open slot (61) communicates by described translot (63) with described the second open slot (62).
5. stepped hole internal diameter measuring instrument according to claim 4 is characterized in that, described the first open slot (61) and described the second open slot (62) are respectively 90 ° the arc groove of opening along the circumference of described sleeve (60).
6. stepped hole internal diameter measuring instrument according to claim 5, it is characterized in that, described spacer pin (70) can slide at described the first open slot (61), described the second open slot (62) and described translot (63), and passes described the first open slot (61), described the second open slot (62) or described translot (63) and be connected with described the second activity head (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220399979 CN202814297U (en) | 2012-08-13 | 2012-08-13 | Stepped-hole inner diameter measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220399979 CN202814297U (en) | 2012-08-13 | 2012-08-13 | Stepped-hole inner diameter measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202814297U true CN202814297U (en) | 2013-03-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220399979 Expired - Fee Related CN202814297U (en) | 2012-08-13 | 2012-08-13 | Stepped-hole inner diameter measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202814297U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438790A (en) * | 2013-08-29 | 2013-12-11 | 安徽江淮汽车股份有限公司 | Inner groove gauge and method for measuring inner groove |
| CN106931854A (en) * | 2017-02-13 | 2017-07-07 | 河南平高电气股份有限公司 | A kind of inner ring groove diameter measuring device |
| CN107843180A (en) * | 2017-12-07 | 2018-03-27 | 杭州锐冠科技有限公司 | A kind of volute stepped hole aperture measuring machine |
-
2012
- 2012-08-13 CN CN 201220399979 patent/CN202814297U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438790A (en) * | 2013-08-29 | 2013-12-11 | 安徽江淮汽车股份有限公司 | Inner groove gauge and method for measuring inner groove |
| CN103438790B (en) * | 2013-08-29 | 2016-08-10 | 安徽江淮汽车股份有限公司 | A kind of inner groove detection tool and the measuring method of internal channel |
| CN106931854A (en) * | 2017-02-13 | 2017-07-07 | 河南平高电气股份有限公司 | A kind of inner ring groove diameter measuring device |
| CN106931854B (en) * | 2017-02-13 | 2019-03-29 | 河南平高电气股份有限公司 | A kind of inner ring groove diameter measuring device |
| CN107843180A (en) * | 2017-12-07 | 2018-03-27 | 杭州锐冠科技有限公司 | A kind of volute stepped hole aperture measuring machine |
| CN107843180B (en) * | 2017-12-07 | 2023-12-19 | 杭州锐冠科技有限公司 | Volute step hole aperture measuring machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20200813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |