CN201297909Y - Internal and external diameter measuring device - Google Patents
Internal and external diameter measuring device Download PDFInfo
- Publication number
- CN201297909Y CN201297909Y CNU2008201685519U CN200820168551U CN201297909Y CN 201297909 Y CN201297909 Y CN 201297909Y CN U2008201685519 U CNU2008201685519 U CN U2008201685519U CN 200820168551 U CN200820168551 U CN 200820168551U CN 201297909 Y CN201297909 Y CN 201297909Y
- Authority
- CN
- China
- Prior art keywords
- column
- wreathed
- ruler
- chi frame
- borded pile
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model provides an internal and external diameter measuring device comprising a ruler stand, a wreathed column and a ruler line marked on the wreathed column. Two ends of the ruler stand are provided with carbide tipped sharp corners; an axle wire of the ruler stand is provided with the wreathed column; the head of a telescopic column of the wreathed column is provided with a tapered tungsten carbide; and the reading data marked on a column sleeve of the wreathed column and the combined type ruler line on the wreathed column is the diameter parameter of the corresponding circle where two sharp corners of the ruler stand and the sharp end of the head of the telescopic column are arranged. When the sharp corners at two ends of the ruler stand are arranged on the surface of a measured work piece, the distance from the sharp end of the head of the telescopic column to the ruler stand is relevant to the diameter of the circle, and the diameter of the circle can be read through the ruler line on the wreathed column. The utility model has the advantages of small volume and convenient measurement.
Description
Technical field
The utility model relates to measurer, particularly a kind of measurer that is used for the part inside and outside diameter measurement.
Background technology
At present, the internal diameter of measuring workpieces or external diameter, generally with slide calliper rule or milscale, large-scale workpiece generally can only be used slide calliper rule.Because workpiece is big, just need large-scale slide calliper rule, need sometimes during measurement to climb on the workpiece, perhaps on the processing equipment such as lathe, also need two people to operate together sometimes.Not only the measurer volume is big for existing method, and measures trouble.
Summary of the invention
The utility model purpose is to provide a kind of as long as measure at the local location of workpiece, just can record the measurer of internal diameter or external diameter, uses with convenient.
Scheme of the present utility model is: a kind of inside and outside diameter measuring tool of large-scale workpiece, comprise chi frame and borded pile, and be engraved in scale line on the borded pile, it is characterized in that: the chi frame is a fork-shaped, the wedge angle of wimet is equipped with at two ends, on the axis of chi frame, borded pile is housed, the column sleeve of borded pile is vertically fixed on the chi frame, the telescopic mast of borded pile, the wedge angle of chi frame points to equidirectional, the telescopic mast head is equipped with the wimet of taper, on the end positions of chi frame magnet is housed, and is engraved in the column sleeve of borded pile and the combined type scale line reading on the borded pile and is two wedge angles of chi frame and the corresponding diameter of a circle parameter at most advanced and sophisticated these three the some places of telescopic mast head.
The utility model has the advantages that: according to mathematical principle, in circle, the string of regular length is to the distance of the mid point of corresponding arc, and is relevant with the diameter of a circle size.The wedge angle at this device chi frame two ends be placed on when surveying surface of the work, this distance of 2 is exactly a chord length, and the most advanced and sophisticated distance to the chi frame of telescopic mast head is promptly relevant with the diameter of a circle size according to above-mentioned principle, can read diameter of a circle by the scale line on the borded pile.The present invention have volume little, measure advantage easily.
Description of drawings
The utility model is described in further detail with embodiment with reference to the accompanying drawings below.
Fig. 1 is a structural representation of measuring the internal diameter device.
Fig. 2 is a structural representation of measuring the external diameter device.
Fig. 3 is the geometric description figure that is used to illustrate measuring principle.
In the drawings: 1 workpiece, 2 chi framves, the column sleeve of 3 borded piles, 4 borded piles, 5 magnet, the wedge angle of 6 chi framves, 7 locks, the telescopic mast of 8 borded piles, 9 telescopic mast heads.
Embodiment
Referring to Fig. 3, in circle, △ ceb and △ cbd are two similar triangles, and its proof procedure no longer calculates.
Thereby, ce/cb=cb/cd
Draw: ce=cb
2/ cd=(cd
2+ db
2)/cd
According to The above results, diameter ce is relevant to the distance (cd) of the mid point of corresponding arc with chord length (2db) and string, if chord length is fixed, then the length of cd just can reflect the diameter of a circle size.
Referring to Fig. 1, the chi frame 2 of embodiment is a fork-shaped, and the wedge angle 6 of wimet is equipped with at the two ends of fork, on the axis of chi frame 2, borded pile 4 is housed.
The column sleeve 3 of borded pile is vertically fixed on the chi frame 2, and the telescopic mast 8 of borded pile, the wedge angle of chi frame 6 point to equidirectional, and telescopic mast head 9 is equipped with the wimet of taper.
The reading that is engraved in the combined type scale line on borded pile column sleeve 3 and the borded pile 4 is two wedge angles of chi frame and the corresponding diameter of a circle parameter at most advanced and sophisticated these three the some places of telescopic mast head, and the marking mode of this scale line is identical with milscale.
Be placed on the surface of workpiece 1 when chi frame 2, magnet 5 attracts workpiece 1 fixing (if right and wrong ironworker part, then place and pin and fix) with hand, distance between the wedge angle 6 of chi frame is the chord length of this section circular arc at this moment, rotate borded pile 4, make tip 9 top tight workpieces 1 of its telescopic mast, read the scale line that is engraved on the borded pile 4 and be inner diameter of workpiece, the mode of reading is identical with milscale.
Shown in Figure 2 is the instrument of measuring external diameter, and structure is identical with the measurement internal diameter, just the length difference of the fork pin of fork-shaped chi frame.Principle is no longer repeated.
Claims (1)
- A kind of inside and outside diameter measuring tool, comprise chi frame (2) and borded pile (4), and be engraved in scale line on the borded pile (4), it is characterized in that: chi frame (2) is a fork-shaped, the wedge angle (6) of wimet is equipped with at two ends, on the axis of chi frame (2), borded pile (4) is housed, the column sleeve of borded pile (3) is vertically fixed on the chi frame (2), the telescopic mast of borded pile (8), the wedge angle of chi frame (6) points to equidirectional, telescopic mast head (9) is equipped with the wimet of taper, magnet (5) is housed on the end positions of chi frame (2), is engraved in the column sleeve (3) of borded pile and two wedge angles (6) that the combined type scale line reading on the borded pile (4) is the chi frame and the corresponding diameter of a circle parameter at these three some places, telescopic mast head tip (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201685519U CN201297909Y (en) | 2008-12-01 | 2008-12-01 | Internal and external diameter measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201685519U CN201297909Y (en) | 2008-12-01 | 2008-12-01 | Internal and external diameter measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201297909Y true CN201297909Y (en) | 2009-08-26 |
Family
ID=41043890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201685519U Expired - Fee Related CN201297909Y (en) | 2008-12-01 | 2008-12-01 | Internal and external diameter measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201297909Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222681A (en) * | 2015-10-29 | 2016-01-06 | 石家庄钢铁有限责任公司 | A kind of can the bar stock bent degree measuring instrument of continuous coverage |
| WO2024033571A1 (en) * | 2022-08-09 | 2024-02-15 | Pjk Forest Tech Oy | A method for calibrating the log thickness measurement device of a forest harvester and an apparatus for measuring the diameter of a tree |
-
2008
- 2008-12-01 CN CNU2008201685519U patent/CN201297909Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222681A (en) * | 2015-10-29 | 2016-01-06 | 石家庄钢铁有限责任公司 | A kind of can the bar stock bent degree measuring instrument of continuous coverage |
| WO2024033571A1 (en) * | 2022-08-09 | 2024-02-15 | Pjk Forest Tech Oy | A method for calibrating the log thickness measurement device of a forest harvester and an apparatus for measuring the diameter of a tree |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106152956B (en) | A kind of laser inside diameter measuring instrument | |
| CN101398283A (en) | Inside and outside diameter measuring tool for large-sized workpieces | |
| CN102042794A (en) | Taper detection device | |
| CN206683513U (en) | A kind of Multifunction vernier calliper | |
| CN201297909Y (en) | Internal and external diameter measuring device | |
| CN104457622B (en) | Device and method for detecting straightness of long shaft inner hole | |
| CN210603038U (en) | Measuring device for size of inner groove | |
| CN203156745U (en) | Casting workblank marking tool | |
| CN105458351A (en) | Detecting tool probe for drilling depth and deviation size | |
| CN211317140U (en) | Deep hole step height measuring device | |
| CN201463795U (en) | Special tool for measuring axis coordinate | |
| CN203024707U (en) | Outer diameter and roundness detector for diamond compact | |
| CN201833756U (en) | Coordinate positioning angle square | |
| CN211452251U (en) | Portable multifunctional engineering quality detection ruler | |
| CN210603179U (en) | Instrument for measuring α and β angles of drill core | |
| CN208458672U (en) | Portable drilling tool measuring device | |
| CN211783401U (en) | Semiconductor laser auxiliary angle measuring device | |
| CN204622038U (en) | A kind of assembled tool for the line of fuel assembly strain gauge adhesion | |
| CN203570303U (en) | Rock core geologic body occurrence condition calibration instrument for inclined shaft | |
| CN203420634U (en) | Drilling tool capable of reducing combining exterior angle difference measurement error of directional drilling tool | |
| CN202221298U (en) | Laser measuring recorder for drilling tool | |
| CN203053409U (en) | Angle measuring tool | |
| CN202938764U (en) | Two-hole center distance measuring device | |
| CN111678397A (en) | Measuring device combining tape measure and vernier caliper | |
| CN107860300A (en) | A kind of arc radius measurement apparatus and measuring method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Xu Nengtong Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090826 Termination date: 20101201 |