CN104374275A - Measuring device for diameter of hole opening - Google Patents
Measuring device for diameter of hole opening Download PDFInfo
- Publication number
- CN104374275A CN104374275A CN201410670547.2A CN201410670547A CN104374275A CN 104374275 A CN104374275 A CN 104374275A CN 201410670547 A CN201410670547 A CN 201410670547A CN 104374275 A CN104374275 A CN 104374275A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- measuring
- gauge head
- diameter
- measuring staff
- 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.)
- Pending
Links
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to a measuring device for diameter of a hole opening. The device comprises a support, a dial gage, measuring rods, a measuring head and a sleeve; the sleeve is fixedly connected with the support; a sinking hole is formed in one end of the sleeve; the dial gage, the measuring rods and the measuring head are placed in the sleeve, and the measuring head is placed in the sinking hole; the dial gage is connected with one end of each measuring rod, and the other ends of the measuring rods are fixedly connected with the measuring head; the measuring rods are connected with the inner wall of the sleeve through springs; limit steps are arranged between the springs and the measuring head; and the measuring head is a cone with a gradually-reduced diameter. The measuring device has the advantages of being convenient to use, small in error, high in precision, long in service life and the like.
Description
Technical field
The present invention relates to machine parts measurement technical field, particularly a kind of measurement mechanism of orifice diameter.
Background technology
For the cylindrical hole of small diameter, with its diameter of high-precision gage measuring, cannot can only judge that whether it is qualified with logical, detent plug rule.Large end orifice diameter for circular cone sky is then more be difficult to measure, long by measuring the parameters such as small end orifice diameter, holds orifice diameter greatly in calculating.Not only bother, measure difficulty large, and the error measured is also large, precision is not high, is difficult to meet processing request.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of easy to use, measuring error is little, and precision is high, the measurement mechanism of the orifice diameter of long service life.
Realize technical scheme of the present invention as follows:
A measurement mechanism for orifice diameter, comprises support, dial gauge, measuring staff, gauge head and sleeve, described sleeve is fixedly connected with support, and sleeve one end is provided with counterbore, dial gauge, measuring staff and gauge head are placed in sleeve and gauge head is placed in counterbore, dial gauge is connected with one end of measuring staff, and the other end of measuring staff is fixedly connected with gauge head, is connected between measuring staff with sleeve lining by spring, be provided with limited step between spring and gauge head, described gauge head is the cone that diameter reduces gradually.
Described measuring staff is T-shaped structure, advantage be convenient to spring with the use of.
The maximum diameter of described gauge head is consistent with the diameter of counterbore, and advantage makes gauge head be placed in counterbore, is convenient to maintenance, avoids damaging, increases the service life.
Have employed above-mentioned scheme, after extruding measuring staff, gauge head stretches out sleeve and contacts with tested aperture, just can read the numerical value of dial gauge, and easy to use, measuring accuracy is high; When not using, measuring staff is resetted by the recovery of spring and the effect of limited step, makes gauge head be placed in the counterbore of sleeve, prevents from damaging, and extends its serviceable life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In accompanying drawing, 1 is support, and 2 is dial gauge, and 3 is sleeve, and 4 is measuring staff, and 5 is gauge head, and 6 is counterbore, and 7 is spring, and 8 is limited step.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
As Fig. 1, a kind of measurement mechanism of orifice diameter, comprise support 1, dial gauge 2, measuring staff 4, gauge head 5 and sleeve 3, described sleeve 3 is fixedly connected with support 1, sleeve 3 one end is provided with counterbore 6, and dial gauge 2, measuring staff 4 and gauge head 5 are placed in sleeve 3 and gauge head 5 is placed in counterbore 6, and dial gauge 2 is connected with one end of measuring staff 4, the other end of measuring staff 4 is fixedly connected with gauge head 5, be connected by spring 7 between measuring staff 4 with sleeve 3 inwall, between spring 7 and gauge head 5, be provided with limited step 8, the cone that described gauge head 5 reduces gradually for diameter.
Described measuring staff 4 is T-shaped structure, advantage be convenient to spring 7 with the use of.The maximum diameter of described gauge head is consistent with the diameter of counterbore, and advantage is that gauge head 5 is placed in counterbore 6, is convenient to maintenance, avoids damaging, increases the service life.
During use, the lower surface of gauge head is contacted with the aperture end face of measured workpiece, at this moment the pointer of dial gauge is returned to zero, and then travelling workpiece is that gauge head enters in measured hole, gauge head moves down, dial gauge indicators turn, and reading is h, if the diameter of cone gauge head small end is d, then the orifice diameter D of measured workpiece is D=d+4h.
Claims (3)
1. a measurement mechanism for orifice diameter, comprises support, dial gauge, measuring staff, gauge head and sleeve, is characterized in that: described sleeve is fixedly connected with support, and sleeve one end is provided with counterbore, dial gauge, measuring staff and gauge head are placed in sleeve and gauge head is placed in counterbore, dial gauge is connected with one end of measuring staff, and the other end of measuring staff is fixedly connected with gauge head, is connected between measuring staff with sleeve lining by spring, be provided with limited step between spring and gauge head, described gauge head is the cone that diameter reduces gradually.
2. the measurement mechanism of orifice diameter according to claim 1, is characterized in that: described measuring staff is T-shaped structure.
3. the measurement mechanism of orifice diameter according to claim 1, is characterized in that: the maximum diameter of described gauge head is consistent with the diameter of counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670547.2A CN104374275A (en) | 2014-11-20 | 2014-11-20 | Measuring device for diameter of hole opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410670547.2A CN104374275A (en) | 2014-11-20 | 2014-11-20 | Measuring device for diameter of hole opening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104374275A true CN104374275A (en) | 2015-02-25 |
Family
ID=52553332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410670547.2A Pending CN104374275A (en) | 2014-11-20 | 2014-11-20 | Measuring device for diameter of hole opening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104374275A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973114A (en) * | 2016-06-03 | 2016-09-28 | 马鞍山方圆动力科技有限公司 | High precision main shaft inner hole testing tool |
| CN106225661A (en) * | 2016-07-10 | 2016-12-14 | 上海大学 | Punching press bore dia device for fast detecting and method thereof on thin-wall part |
| CN111795634A (en) * | 2020-07-06 | 2020-10-20 | 东风汽车车轮随州有限公司 | Device and method for detecting size of opening of taper hole of wheel nut seat |
-
2014
- 2014-11-20 CN CN201410670547.2A patent/CN104374275A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973114A (en) * | 2016-06-03 | 2016-09-28 | 马鞍山方圆动力科技有限公司 | High precision main shaft inner hole testing tool |
| CN106225661A (en) * | 2016-07-10 | 2016-12-14 | 上海大学 | Punching press bore dia device for fast detecting and method thereof on thin-wall part |
| CN111795634A (en) * | 2020-07-06 | 2020-10-20 | 东风汽车车轮随州有限公司 | Device and method for detecting size of opening of taper hole of wheel nut seat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102519347B (en) | Inner hole radial circle run-out detecting tool | |
| CN104111011A (en) | Device for measuring valve cone height, corrected length and conical surface bounce | |
| CN202853513U (en) | Vernier caliper used for internal diameter measurement | |
| CN203704817U (en) | Thread plug gauge used for detecting taper internal threads of graphite electrode | |
| CN104374275A (en) | Measuring device for diameter of hole opening | |
| CN102878899A (en) | Device for measuring length of stepped hole inside deep hole | |
| CN104422361A (en) | Device for measuring distance from annular groove to end face of shaft shoulder on shaft | |
| CN104567606A (en) | Lever type inside diameter detection device for workpiece | |
| CN203116686U (en) | Verticality gauge | |
| CN105737718A (en) | Detection apparatus for parallelism degree between workpiece hole and machine tool guide rail | |
| CN201885661U (en) | Measuring tool for outer diameter of step of piston steel top | |
| CN102865793B (en) | The measurement mechanism of bearing washer inner arc surface and measuring method | |
| CN103307952A (en) | Measuring instrument for diameter of lever-type deep hole | |
| CN202947557U (en) | Precise detecting instrument for bearing ring | |
| CN104374278A (en) | Measuring instrument for large-diameter inner threads | |
| CN202814308U (en) | Measuring device for bearing washer inner circular arc surface | |
| CN103940329B (en) | Roller sleeve of grinding roll of vertical grinding machine survey tool | |
| CN202938764U (en) | Two-hole center distance measuring device | |
| CN203479225U (en) | Spherical hole radius measuring tool | |
| CN201497463U (en) | Measuring tool for measuring diameters of bottoms of even number of screw spiral grooves | |
| CN203712540U (en) | Auxiliary clamp for precisely measuring aperture | |
| CN206258334U (en) | Vitreous enamel enamel ware impact resistance rifle calibrating installation | |
| CN205138686U (en) | Dynamometer with self -checking function | |
| CN204359253U (en) | A kind of sphere diameter on-position measure device | |
| CN204286314U (en) | Workpiece lever inside diameter detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |
|
| WD01 | Invention patent application deemed withdrawn after publication |