CN209055055U - A kind of inner circle detection instrument - Google Patents
A kind of inner circle detection instrument Download PDFInfo
- Publication number
- CN209055055U CN209055055U CN201821780068.6U CN201821780068U CN209055055U CN 209055055 U CN209055055 U CN 209055055U CN 201821780068 U CN201821780068 U CN 201821780068U CN 209055055 U CN209055055 U CN 209055055U
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- China
- Prior art keywords
- bottom plate
- plectane
- hole
- inner circle
- detection instrument
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Abstract
The utility model discloses a kind of inner circle detection instrument, including bottom plate made of metal, it is provided with one block of plectane on bottom plate, central through hole is offered in the middle part of plectane, offers a threaded hole in the middle part of bottom plate；The central through hole of plectane is inserted into a bolt and is screwed into the threaded hole on bottom plate；In horizontal plane projection, the projection of plectane is entirely located in the projection of bottom plate；Bottom plate and plectane are made of potassium steel.Compared with prior art, inner circle detection instrument structure provided by the utility model is simple, easy to use, so that the interior loop truss of the relatively low part of required precision is more convenient, quick, improves work efficiency.
Description
Technical field
The utility model relates to detection instrument technical field, in particular to a kind of inner circle detection instrument.
Background technique
Part with inner circle is generally required before factory detects the circularity of its inner circle.In the prior art, pass through
Micrometer on roundness tester is contacted with the inner circle of part, and rotational parts one week, and carry out degree.But for some
The relatively low part of required precision (part being such as stamped and formed out) is not very high for detection means requirement, if still logical
The mode of micrometer is crossed to detect, working efficiency is lower.Therefore, it is necessary to propose a kind of easy detection instrument, Neng Gouzhen
The inner circle of the lower part of required precision is detected, also can be improved detection efficiency.
As it can be seen that the prior art could be improved and improve.
Utility model content
Place in view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of inner circle detection instrument,
It aims at and the inner circle of the not high part of required precision is used for quickly detecting.
In order to achieve the above object, the utility model takes following technical scheme:
A kind of inner circle detection instrument, including bottom plate made of metal are provided with one block of plectane on bottom plate, open in the middle part of plectane
Equipped with central through hole, a threaded hole is offered in the middle part of bottom plate；The central through hole of plectane is inserted into a bolt and is screwed on bottom plate
Threaded hole in；In horizontal plane projection, the projection of plectane is entirely located in the projection of bottom plate；Bottom plate and plectane are by potassium steel system
At.
In the inner circle detection instrument, the bottom plate is in rectangle, and it is equal convex that height is respectively set in four sides of bottom plate
Edge, the thickness of flange are less than the thickness of bottom plate, and the connecting place of any two flange offers a connecting hole respectively.
In the inner circle detection instrument, first positioning hole is offered on bottom plate, offers second location hole on plectane；The
A positioning hole and second location hole are through-hole and diameter is equal, are positioned in first positioning hole and second location hole inserted with one
Pin.
In the inner circle detection instrument, the central through hole is counterbore, and the bolt is hexagon socket head cap screw.
In the inner circle detection instrument, the thickness range of plectane is 40~50mm.
In the inner circle detection instrument, the cylindricity of plectane is not more than 0.01mm.
The utility model has the advantages that the utility model provides a kind of inner circle detection instrument, compared with prior art, avoid using thousand points
The mode of ruler detects the circularity of part inner circle, and by setting bottom plate and plectane, wherein plectane is used as the template of interior loop truss, from
And the interior loop truss for the part for making required precision relatively low is more convenient, quick, improves work efficiency.
Detailed description of the invention
Fig. 1 is the perspective view of inner circle detection instrument provided by the utility model.
Fig. 2 is the perspective view of bottom plate in inner circle detection instrument provided by the utility model.
Specific embodiment
The utility model provides a kind of inner circle detection instrument, to make the purpose of this utility model, technical solution and effect more
Add clear, clear, the utility model is further described as follows in conjunction with drawings and embodiments.It should be appreciated that this place
The specific embodiment of description only to explain the utility model, is not used to limit the utility model.
Fig. 1 and Fig. 2 are please referred to, the utility model provides a kind of inner circle detection instrument.
The inner circle detection instrument include made of metal at bottom plate 1, be provided with one block of plectane 2, the middle part of plectane on bottom plate
Central through hole 200 is offered, offers a threaded hole 100 in the middle part of bottom plate；The central through hole of plectane is inserted into a bolt (in figure
Be not drawn into) and the threaded hole that is screwed on bottom plate in；In horizontal plane projection (that is: the visual angle of vertical view), the projection whole position of plectane
In the projection of bottom plate, in other words, plectane 2 is fully located on bottom plate 1.Bottom plate and plectane are made of potassium steel, have good
Wearability, it is not easy to wear although can rub between detected part, to have longer service life.
In practical application, plectane is generally processed by way of CNC (numerical control machining center) and is obtained, and is examined for part inner circle
The template of survey.When the part of different inner diameters needs to detect, then the plectane of some different-diameters can be accordingly made.Due to circle
When being bolted between plate and bottom plate, therefore detecting certain a collection of part, that block plectane of corresponding size is mounted on bottom plate i.e.
It can.The mode specifically detected are as follows: part is covered on plectane, is clearance fit between part and plectane.Ground is crossed manually by part
It is rotated one week around plectane, if blocked between part and plectane in some position, testing result is unqualified；If rotation one
There is no blocking in all ranges, then testing result is qualification.It can be seen that (such as the relatively not high part of required precision
Part obtained by punching press), such detection mode is quick, and production efficiency greatly improved.
Preferably, the bottom plate 1 is in rectangle, and the equal flange 11 of height, the thickness of flange is respectively set in four sides of bottom plate
Degree is less than the thickness of bottom plate, and the connecting place of any two flange offers a connecting hole 110 respectively.When actual processing, in square
The surrounding of shape plate opens up recess respectively can form four flanges.And by setting 4 connecting holes, therefore convenient for workbench it
Between be connected and fixed, avoid detection when bottom plate shake.
Further, first positioning hole 101 is offered on bottom plate 1, and second location hole 201 is offered on plectane 2；First is fixed
Position hole and second location hole is through-hole and diameter is equal, inserted with a positioning pin in first positioning hole and second location hole
(being not drawn into figure).By the way that positioning pin is arranged, can further avoid relatively rotating between plectane and bottom plate.First positioning
Hole hole and second location hole are all through-hole.Positioning pin is again clearance fit in first positioning hole and the second positioning, when needing replacing
When plectane, positioning pin can be easily removed.
Further, the central through hole 200 is counterbore, and the bolt is hexagon socket head cap screw.Setting can make in this way
Bolt is located in counterbore, is also convenient for tightening and unclamping for bolt.
Preferably, the thickness range of plectane 2 is 40~50mm, which can be suitable for the part of more different height
Detection.
Preferably, the cylindricity of plectane 2 is not more than 0.01mm, that is, as the template of detection, plectane itself has higher
Precision so that testing result is relatively reliable.
It is understood that for those of ordinary skills, can with technical solution according to the present utility model and
The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement all should belong to the protection of the utility model
Range.
Claims (6)
1. a kind of inner circle detection instrument, including bottom plate made of metal, which is characterized in that be provided with one block of plectane on bottom plate, circle
Central through hole is offered in the middle part of plate, offers a threaded hole in the middle part of bottom plate；The central through hole of plectane is inserted into a bolt simultaneously
It is screwed into the threaded hole on bottom plate；In horizontal plane projection, the projection of plectane is entirely located in the projection of bottom plate；Bottom plate and plectane
It is made of potassium steel.
2. inner circle detection instrument according to claim 1, which is characterized in that the bottom plate is in rectangle, four sides of bottom plate
The equal flange of height is respectively set, the thickness of flange is less than the thickness of bottom plate, and the connecting place of any two flange opens up respectively
There is a connecting hole.
3. inner circle detection instrument according to claim 1, which is characterized in that offer first positioning hole, plectane on bottom plate
On offer second location hole；First positioning hole and second location hole are through-hole and diameter is equal, first positioning hole and second
Inserted with a positioning pin in location hole.
4. inner circle detection instrument according to claim 1, which is characterized in that the central through hole is counterbore, the bolt
For hexagon socket head cap screw.
5. inner circle detection instrument according to claim 1, which is characterized in that the thickness range of plectane is 40~50mm.
6. inner circle detection instrument according to claim 1, which is characterized in that the cylindricity of plectane is not more than 0.01mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780068.6U CN209055055U (en) | 2018-10-30 | 2018-10-30 | A kind of inner circle detection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780068.6U CN209055055U (en) | 2018-10-30 | 2018-10-30 | A kind of inner circle detection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209055055U true CN209055055U (en) | 2019-07-02 |
Family
ID=67052143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821780068.6U Active CN209055055U (en) | 2018-10-30 | 2018-10-30 | A kind of inner circle detection instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209055055U (en) |
-
2018
- 2018-10-30 CN CN201821780068.6U patent/CN209055055U/en active Active
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