CN202350712U - Diameter measuring tool for shallow blind holes - Google Patents
Diameter measuring tool for shallow blind holes Download PDFInfo
- Publication number
- CN202350712U CN202350712U CN2011204884658U CN201120488465U CN202350712U CN 202350712 U CN202350712 U CN 202350712U CN 2011204884658 U CN2011204884658 U CN 2011204884658U CN 201120488465 U CN201120488465 U CN 201120488465U CN 202350712 U CN202350712 U CN 202350712U
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- China
- Prior art keywords
- matrix
- extension bar
- blind hole
- instrument
- shallow blind
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- Expired - Lifetime
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- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a diameter measuring tool for shallow blind holes. The diameter measuring tool comprises a measuring instrument, a first matrix, an extension bar and a second matrix, wherein the first matrix, the extension bar and the second matrix are sequentially connected, the bottom surfaces of the first matrix and the second matrix are base levels which are on the same plane, a measuring anvil is connected to the tail end of the second matrix, the bottom surface height of the measuring anvil is equal to or larger than the base level height of the second matrix, the measuring instrument is connected to a regulating nut on the end portion of the first matrix through a head body, and the bottom surface height of the regulating nut is larger than the base level height of the first matrix. The diameter measuring tool is specially designed for the shallow blind holes which are large in size while small in depth. During measurement, the first matrix, the extension bar and the second matrix are used for coarse regulation, the regulating nut is used for fine regulation, therefore the measurement is accurate and measuring range has certain flexibility. The diameter measuring tool has the advantages of reasonable design, simple structure, low cost, convenient operation, accurate measurement, good generality, high practicability and the like.
Description
Technical field
The utility model relates to the survey instrument of mechanical component, specifically is a kind of shallow blind hole diameter survey instrument.
Background technology
In the process of mechanical component, all can relate to blind hole usually.Wherein, The radial dimension of some blind holes big (＞Φ 300mm), the size tolerance requirements strictness (tolerance value＜0.02mm), depth as shallow (＜10mm); The blind hole of this class formation often connects as the location of axial workpiece; Assembly precision requires very high, therefore, is adding the diameter dimension that must accurately detect this type of blind hole man-hour.
But owing to receive the range of conventional internal diameter chi, inside meter and the restriction of instrument structure, blind hole big to this type size, depth as shallow can't be measured.If the special customized diameter measurement instrument of blind hole big to this type size, depth as shallow, its instrument manufacturing cost is not only high, and the manufacturing cycle is long; If adopt clamp to measure, all can there be error effect in its measuring accuracy and operating process thereof, can not satisfy the detection requirement.
Summary of the invention
The purpose of the utility model is: to the characteristics of above-mentioned blind hole structure and the deficiency of existing survey instrument, a kind of simple in structure, with low cost, easy to operate, accurate shallow blind hole diameter survey instrument of measurement is provided.
The technical purpose of the utility model realizes through following technical proposals: a kind of shallow blind hole diameter survey instrument; Comprise measurement instrument; Also comprise first matrix, extension bar and second matrix that connect successively, the bottom surface of said first matrix and second matrix is a reference field, and the reference field of the two at grade; The tail end end of said second matrix is connected with gage button; The bottom surface height of this gage button is equal to or greater than the reference field height of second matrix, and said measurement instrument is connected through the gauge outfit body on the setting nut of the first matrix end, and the bottom surface height of said setting nut is greater than the reference field height of first matrix.
Said measurement instrument is inside meter or dial test indicator.
Said first matrix is connected with stretch mode with extension bar; Or said extension bar is connected with stretch mode with second matrix; Also or between said first matrix, extension bar and second matrix connect with stretch mode successively.
Said stretch mode is in telescopic any of screw-in, horizontal feed formula and pipeline.
The beneficial effect of the utility model is: the survey instrument of said structure is big to size specially, the shallow blind hole of depth as shallow and designing; When measuring; Carry out coarse adjustment through first matrix, extension bar and second matrix; Carry out fine adjustment through setting nut, and then, on measurement range, have certain flexibility to the purpose of accurately measuring.That this survey instrument has is reasonable in design, simple in structure, with low cost, easy to operate, measure accurately, versatility is good and characteristics such as practical.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is the another kind of structural representation of the utility model.
Embodiment
Referring to Fig. 1: the utility model comprises measurement instrument 1, and first matrix 5, extension bar 6 and second matrix 7 that connect successively.Wherein, measurement instrument 1 is an inside meter, and measurement instrument 1 is connected on the gauge outfit body 3 through holding screw 2, and gauge outfit body 3 is connected on the setting nut 4 of first matrix, 5 ends; The bottom surface of first matrix 5 and second matrix 7 (face that promptly contacts with shallow blind hole bottom surface) is a reference field; The reference field 9 of first matrix 5 and the reference field 10 of second matrix 7 at grade, the bottom surface height of first matrix, 5 end setting nuts 4 should be greater than the reference field of first matrix 59 height; The tail end end of second matrix 7 is connected with gage button 8, and the bottom surface height of this gage button 8 should be greater than reference field 10 height of (also can equal) second matrix 7.
Link together with the stretch mode of screw-in successively between above-mentioned first matrix 5, extension bar 6 and second matrix 7.The connected mode of first matrix 5, extension bar 6 and second matrix 7 except aforesaid three is flexible successively be connected, can also first matrix 5 and extension bar 6 be connected with stretch mode, extension bar 6 is fixedly connected with second matrix 7; Can first matrix 5 be fixedly connected with extension bar 6 again, extension bar 6 is connected with stretch mode with second matrix 7, can reach the goal of the invention of the utility model equally.
Above-mentioned stretch mode can also select for use horizontal feed formula or pipeline telescopic except selecting screw-in, can reach the goal of the invention of the utility model too.
Referring to Fig. 2: other structure of the utility model is the same, and difference only is that measurement instrument 1 is dial test indicator.
The measuring principle of the utility model is based on the measurement of comparison method; The promptly actual suitable assemblies such as matrix (i.e. first matrix and second matrix), extension bar, setting nut and measurement instrument of blind hole diameter size Selection according to part; They are fitted together; With the distance between the outside micrometer calibration measurement instrument two ends gage button after the calibration; Obtain survey instrument length, and the difference of the measured diameter size of assurance part blind hole and survey instrument length moves to survey instrument the detected part of part blind hole then in the measurement range of measurement instrument (inside meter or dial test indicator); Through reading the difference of measurement instrument gauge outfit, can obtain the diameter actual measurement size of part blind hole.
Claims (4)
1. shallow blind hole diameter survey instrument; Comprise measurement instrument (1); It is characterized in that: also comprise first matrix (5), extension bar (6) and second matrix (7) that connect successively; The bottom surface of said first matrix (5) and second matrix (7) is a reference field; The reference field of the two (9,10) at grade, the tail end end of said second matrix (7) is connected with gage button (8), the reference field (10) that the bottom surface height of this gage button (8) is equal to or greater than second matrix (7) highly; Said measurement instrument (1) is connected through gauge outfit body (3) on the setting nut (4) of first matrix (5) end, and the bottom surface height of said setting nut (4) greater than the reference field (9) of first matrix (5) highly.
2. according to the said shallow blind hole diameter survey instrument of claim 1, it is characterized in that: said measurement instrument (1) is inside meter or dial test indicator.
3. according to the said shallow blind hole diameter survey instrument of claim 1, it is characterized in that: said first matrix (5) is connected with stretch mode with extension bar (6); Or said extension bar (6) is connected with stretch mode with second matrix (7); Also or between said first matrix (5), extension bar (6) and second matrix (7) connect with stretch mode successively.
4. according to the said shallow blind hole diameter survey instrument of claim 3, it is characterized in that: said stretch mode is in telescopic any of screw-in, horizontal feed formula and pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204884658U CN202350712U (en) | 2011-11-30 | 2011-11-30 | Diameter measuring tool for shallow blind holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204884658U CN202350712U (en) | 2011-11-30 | 2011-11-30 | Diameter measuring tool for shallow blind holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202350712U true CN202350712U (en) | 2012-07-25 |
Family
ID=46539711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204884658U Expired - Lifetime CN202350712U (en) | 2011-11-30 | 2011-11-30 | Diameter measuring tool for shallow blind holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202350712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608652A (en) * | 2019-09-12 | 2019-12-24 | 西安航天精密机电研究所 | Inner hole aperture precision measurement device and measurement method |
-
2011
- 2011-11-30 CN CN2011204884658U patent/CN202350712U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608652A (en) * | 2019-09-12 | 2019-12-24 | 西安航天精密机电研究所 | Inner hole aperture precision measurement device and measurement method |
| CN110608652B (en) * | 2019-09-12 | 2021-04-09 | 西安航天精密机电研究所 | Inner hole aperture precision measurement device and measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |