CN2093379U - Electronic numeral display inside micrometer - Google Patents
Electronic numeral display inside micrometer Download PDFInfo
- Publication number
- CN2093379U CN2093379U CN 91216043 CN91216043U CN2093379U CN 2093379 U CN2093379 U CN 2093379U CN 91216043 CN91216043 CN 91216043 CN 91216043 U CN91216043 U CN 91216043U CN 2093379 U CN2093379 U CN 2093379U
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- CN
- China
- Prior art keywords
- bar
- measuring staff
- internal diameter
- movement measuring
- fixed block
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- 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 - Lifetime
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- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to an electronic numeral display inside micrometer, comprising a fixed measuring rod and a movable measuring rod which can be axially and movably matched and arranged at the rear part of the fixed measuring rod. The rear end of the movable rod is flexibly connected with a fixed block which can be axially and movably arranged on the fixed rod. A measuring micrometer which is convenient to be identified by an electronic numeral display device is arranged on the fixed rod; the electronic numeral display device is arranged on the movable rod. The inside micrometer can continuously measure the inner diameters of each points of the measured hole, consequently the dimension turning point can be conveniently, rapidly and accurately found out; the inner diameter of the hole is determined. In addition, if an extension rod is also additionally arranged, the larger inner diameter can be measured.
Description
The utility model relates to the inner diameter measurement utensil, particularly a kind of electronic digital display internal diameter chi.
The measurement of internal diameter is the problem that measurer industry people are concerned about always.Inner diameter measurement utensil commonly used at present generally all adopts the milscale micrometer head to add extension bar.The milscale micrometer head is to utilize the screw thread pair principle, hold-down nut, and rotating screw bolt produces straight-line displacement, and utilizes the dial sleeve that is installed in respectively on hold-down nut and the moving screw to take the reading.This micrometer head has following shortcoming: measuring speed is slow, and this is because the pitch of screw thread pair is less, is generally 0.5mm, adjust a segment length, and screw rod need rotate many circles; The reading inconvenience, and have parallax; Can only on the spot measure each point of internal diameter by arc, so in actual measurement, can't find out the size turning point of internal diameter; Because rotating screw bolt artificially is so measured value is subject to the influence of rotating force etc.
The purpose of this utility model provides and a kind ofly measures conveniently, rapidly, accurately and can measure the internal diameter chi of one section camber line continuously.
Technical solution of the present utility model is:
A kind of electronic digital display internal diameter chi, comprise: a fixation measuring bar, one movement measuring staff, one electronic digital display apparatus, one dip stick that is used with this digital display device, wherein, described movement measuring staff can cooperate the rear portion that is installed in described fixation measuring bar with moving axially, and the axis of the measurement section of this fixation measuring bar and this movement measuring staff coincides, the rear end of this movement measuring staff is connected with the fixed block elasticity that can be installed on this fixation measuring bar with moving axially, this dip stick is arranged on this fixation measuring bar (or this movement measuring staff), scale on this dip stick can be discerned by the sensor of this electronic digital display apparatus, this electronic digital display apparatus is arranged on this movement measuring staff (or this fixation measuring bar), and its sensor is positioned at the top of the scale face of described dip stick.
Internal diameter chi of the present utility model owing to adopted the electronic digital display technology, has realized that the numeral of measured value shows, has overcome parallax, and zero setting at an arbitrary position, convenient reading; Movement measuring staff and fixation measuring bar adopt axially displaceable syndeton, during measurement, have eliminated this factor of pitch, and movement measuring staff can be realized the big displacement of straight line, so measuring speed is fast; Because movement measuring staff is connected with fixed block elasticity, like this, the elasticity dynamometry is constant, eliminated the influence of artificial dynamometry size, and movement measuring staff is under the effect of elastic force, and its measuring junction contacts with tested surface all the time, rotate sounding rod and can measure the internal diameter of one section camber line continuously, so just can find the size turning point of internal diameter exactly.
In addition, socket extension bar again on the fixation measuring bar of internal diameter chi of the present utility model or movement measuring staff just can be measured bigger internal diameter.
Below in conjunction with accompanying drawing, describe most preferred embodiment of the present utility model in detail, so that design of the present utility model is had more specifically and deep understanding.Wherein,
Fig. 1 is the structural representation of a kind of electronic digital display internal diameter chi of the present utility model;
Fig. 2 is the schematic top plan view and the annex synoptic diagram thereof of internal diameter chi shown in Figure 1;
Fig. 3 is the broken section enlarged diagram of internal diameter chi shown in Figure 1;
Fig. 4 analyses and observe decomposing schematic representation along what A-A among Fig. 3 cut open.
Referring to Fig. 1-4, a kind of electronic digital display internal diameter chi, comprise: fixation measuring bar 1, movement measuring staff 2, described movement measuring staff 2 can cooperate (see figure 3) in the rail portion 101 that is installed in fixation measuring bar 1 rear end with moving axially, the measurement section 102 of fixation measuring bar 1 coincides with the axis of the measurement section of movement measuring staff 2, thereby guarantees that fixed and movable measuring junction 103 and 202 is on the coaxial relative position fully.Fixation measuring bar 1 is provided with an axial pass trough 104, see Fig. 3, can cooperate in this groove with moving axially a fixed block 3 is installed, the axial slit 302 that the bottom of fixed block 3 is provided with a screw 301 and passes this screw 301, one knurled nut 4 that has a conical neck 401 is housed in the screw 301, when tighting a bolt 4 the time, because the dilating effect of conical neck 401 struts the part of axial slit 302 both sides of fixed block 3, thereby fixed block 3 is fixed on a certain position of groove 104, and its purpose will be narrated hereinafter.Also be provided with an axially extending bore 303 on this fixed block 3, so that a thin bar 5 that allows movement measuring staff 2 rear ends be had can pass axially and movably, and the end at thin bar 5 is provided with a block piece 6, a nut for example, in case thin bar 5 slippage from through hole 303, be set with a stage clip 7 on the thin bar 5 between the rear end of this fixed block 3 and the sounding rod 2 of living, thereby movement measuring staff 2 is connected with fixed block 3 elasticity.Those skilled in the art it is contemplated that out fully according to the prompting of above-mentioned design and present embodiment other concrete forms fixed block 3 mounting means and with the elastic connection way of movement measuring staff 2, do not repeat them here.
The rear portion of fixation measuring bar 1 is provided with a dip stick 8, and the scale on this dip stick 8 can be discerned by the sensor of electronic digital display apparatus.Be provided with an electronic digital display apparatus 9 at the rear portion of movable dip stick 2, this device all is positioned at the top of dip stick 8 together with its sensor (not shown), and guarantees that its sensor can discern the scale on the dip stick 8.Because electronic digital display apparatus 9 and sensor thereof and dip stick 8 and scale thereof all belong to prior art, are not described in detail in this its structure.
In addition, on the fixation measuring bar 1 at the front end place of dip stick 8, be provided with positioning piece 10, be used to limit the going-back position of electronic digital display apparatus 9, thereby determine the retraction limit of movement measuring staff 2, determine that thus the mark of internal diameter chi is long.
The course of work of this internal diameter chi now is described, measure the internal diameter in the hole of a certain nominal size as desire, whether checking internal diameter chi zero-bit is correct earlier, again by move and fixedly fixed block 9 movement measuring staff 2 is moved to the position of the displayed value of its display device 9 greater than this nominal size 1-3mm, elastic compression movement measuring staff 2 is put into measured hole with the internal diameter chi then, rotate the internal diameter chi, measure continuously, and find the size turning point from the numerical value of digital display device 9, the gained displayed value is added that the mark length of internal diameter chi is the internal diameter of measured piece.
In order to adapt to the measurement of large diameter (＞φ 600mm), can be on fixation measuring bar 1 or movement measuring staff 2 one or more extension bar of socket 11(see Fig. 2).
In addition,, can near the two ends of fixation measuring bar 1, add suspension holdfast 12 respectively, measure so that the internal diameter chi hung on the measured piece for the ease of operation.
According to design of the present utility model, those skilled in the art can do some changes to the foregoing description fully, or dreams up other embodiment, and these are all within claim scope of the present utility model.
Claims (5)
1, a kind of electronic digital display internal diameter chi, comprise: a fixation measuring bar, one movement measuring staff, one electronic digital display apparatus, one dip stick that is used with this electronic digital display apparatus, it is characterized in that, described movement measuring staff can cooperate the rear portion that is installed in described fixation measuring bar with moving axially, and the axis of the measurement section of this fixation measuring bar and this movement measuring staff coincides, the rear end of this movement measuring staff is connected with the fixed block elasticity that can be installed on this fixation measuring bar with moving axially, described dip stick is arranged on this fixation measuring bar (or this movement measuring staff), scale on this dip stick can be discerned by the sensor of electronic digital display apparatus, described electronic digital display apparatus is arranged on this movement measuring staff (or this fixation measuring bar), and its sensor is positioned at the top of the scale face of described dip stick.
2, internal diameter chi as claimed in claim 1 is characterized in that, also comprises the keeper of being located on the fixation measuring bar, is used for determining the retraction limit of movement measuring staff, thereby the mark of determining the internal diameter chi is long.
3, internal diameter chi as claimed in claim 2 is characterized in that, described movement measuring staff axially movably cooperates in the rail portion of the rear end that is installed in the fixation measuring bar.
4, as claim 1 or 2 or 3 described internal diameter chis, it is characterized in that, described movement measuring staff comprises with the elastic connection structure of described fixed block: one can cooperate the fixed block in the axial pass trough that is installed in the fixation measuring bar with moving axially, this fixed block bottom is provided with the axial slit that a screw and passes this screw, one knurled nut that has a conical neck is housed in the screw, also be provided with an axially extending bore on this fixed block, the rear end of described movement measuring staff has a thin bar, this thin bar can be installed in the described through hole axially and movably, and its end is provided with the block piece of the thin bar of prevention slippage from through hole, is set with a stage clip on the thin bar between the rear end of this fixed block and movement measuring staff.
5, internal diameter chi as claimed in claim 4 is characterized in that, also comprises at least one extension bar that can be socketed on described fixation measuring bar or the movement measuring staff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91216043 CN2093379U (en) | 1991-06-08 | 1991-06-08 | Electronic numeral display inside micrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91216043 CN2093379U (en) | 1991-06-08 | 1991-06-08 | Electronic numeral display inside micrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2093379U true CN2093379U (en) | 1992-01-15 |
Family
ID=4924036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91216043 Expired - Lifetime CN2093379U (en) | 1991-06-08 | 1991-06-08 | Electronic numeral display inside micrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2093379U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365378C (en) * | 2006-03-10 | 2008-01-30 | 中国船舶工业股份有限公司 | Auxiliary tool and using method for measuring big-aperture pieces |
| CN102297649A (en) * | 2011-07-18 | 2011-12-28 | 宁波锦辉指针有限公司 | Apparatus for measuring diameter of instrument indicator of automobile |
| CN103438774A (en) * | 2013-08-26 | 2013-12-11 | 徐州协鑫太阳能材料有限公司 | Trapezoid workpiece inner wall horizontal size measuring device |
| CN108405817A (en) * | 2018-03-09 | 2018-08-17 | 上海宝钢工业技术服务有限公司 | The diameter measuring rule at the ladle high temperature mouth of a river |
| CN111504173A (en) * | 2020-04-27 | 2020-08-07 | 中国航空工业集团公司北京航空精密机械研究所 | Engine nozzle diameter measuring device |
| CN113932688A (en) * | 2021-09-22 | 2022-01-14 | 成都飞机工业（集团）有限责任公司 | Hole inner diameter measuring device and measuring method |
-
1991
- 1991-06-08 CN CN 91216043 patent/CN2093379U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365378C (en) * | 2006-03-10 | 2008-01-30 | 中国船舶工业股份有限公司 | Auxiliary tool and using method for measuring big-aperture pieces |
| CN102297649A (en) * | 2011-07-18 | 2011-12-28 | 宁波锦辉指针有限公司 | Apparatus for measuring diameter of instrument indicator of automobile |
| CN102297649B (en) * | 2011-07-18 | 2013-01-23 | 宁波锦辉指针有限公司 | Apparatus for measuring diameter of instrument indicator of automobile |
| CN103438774A (en) * | 2013-08-26 | 2013-12-11 | 徐州协鑫太阳能材料有限公司 | Trapezoid workpiece inner wall horizontal size measuring device |
| CN108405817A (en) * | 2018-03-09 | 2018-08-17 | 上海宝钢工业技术服务有限公司 | The diameter measuring rule at the ladle high temperature mouth of a river |
| CN111504173A (en) * | 2020-04-27 | 2020-08-07 | 中国航空工业集团公司北京航空精密机械研究所 | Engine nozzle diameter measuring device |
| CN113932688A (en) * | 2021-09-22 | 2022-01-14 | 成都飞机工业（集团）有限责任公司 | Hole inner diameter measuring device and measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |