CN207675149U - Centre bore special gauge - Google Patents
Centre bore special gauge Download PDFInfo
- Publication number
- CN207675149U CN207675149U CN201721909380.6U CN201721909380U CN207675149U CN 207675149 U CN207675149 U CN 207675149U CN 201721909380 U CN201721909380 U CN 201721909380U CN 207675149 U CN207675149 U CN 207675149U
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- Prior art keywords
- centre bore
- measuring rod
- ball
- table body
- special gauge
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Abstract
The utility model provides a kind of centre bore special gauge, is opened in the size of the centre bore of the end face of workpiece for detecting.Centre bore special gauge includes：Scale measures ball and reference body.Scale includes table body, measuring rod and display module.Measuring rod is telescopically connected to table body, and one end of measuring rod is located in table body.Measure one end that ball is fixed on separate table body in measuring rod.Reference body is fixed on table body, reference body is equipped with a reference plane towards workpiece, and for reference plane perpendicular to the axial direction of measuring rod, the diameter for measuring ball is more than the diameter of centre bore, when measurement ball presses on the aperture of centre bore along the axis direction of measuring rod, reference plane can be connected to the end face of workpiece.According to the correspondence between the stroke of measuring rod and centre bore pore size, the aperture of different centre bores is calculated, it is final to determine whether the pore size of centre bore complies with standard, ensure the consistency of product center pore size.The detection device detection efficiency is high, accuracy of detection is high.
Description
Technical field
The utility model is related to a kind of centre bore special gauges.
Background technology
General shaft metalloid machining can all use centre bore to position.In assembly line batch machining, centre bore
It is processing positioning datum, the size identical property of centre bore plays the role of the quality of product following process vital.Center
Hole is not of uniform size so that workpieces in subsequent processing positioning is inaccurate, causes Workpiece Machining Accuracy not high or does over again, scraps phenomenon and send out again and again
It is raw.Size whether standard compliant method in inspection center hole is will to form the standard steel ball that line contacts with the centre bore conical surface at present
Put to central hole, then detect its height with height gauge, the height value that this height value and measurement standard centre bore are obtained into
Row comparison, so that it is determined that whether the size of this centre bore complies with standard.The method detection error is big, efficiency is low, and detection method
It is cumbersome.
Utility model content
The technical problems to be solved in the utility model is missed to overcome the method in inspection center hole in the prior art to detect
Defect poor big, efficiency is low, provide it is a kind of can efficiently, the centre bore special gauge in high-precision inspection center hole.
The utility model is to solve above-mentioned technical problem by following technical proposals：
A kind of centre bore special gauge is opened for detecting in the size of the centre bore of the end face of workpiece, the center
Hole special gauge includes：
Scale, the scale include table body, measuring rod and display module, and the measuring rod is telescopically connected to the table
One end of body, the measuring rod is located in the table body, and the display module is used to show that the amount of movement institute of the measuring rod to be right
The measured value answered；
Ball is measured, the ball that measures is fixed on one end far from the table body in the measuring rod；With
Reference body, the reference body are fixed on the table body, and the reference body is equipped with a benchmark towards the workpiece
Face, for the reference plane perpendicular to the axial direction of the measuring rod, the diameter for measuring ball is more than the diameter of the centre bore, described
When measurement ball presses on the aperture of the centre bore along the axis direction of the measuring rod, the reference plane can be connected to described
The end face of workpiece.
Preferably, being provided with a through-hole in the reference body, the measuring rod is in the through-hole, the through-hole close to institute
The diameter for stating the one end for measuring ball is more than the diameter for measuring ball.
In the present solution, through-hole has the function of being oriented to, at the same convenient in reference body reference plane and workpiece to be detected
Surface contact.
Preferably, being provided with a threaded hole in the reference body, the threaded hole is connected with the through-hole, the centre bore
Special gauge further includes screw, and the screw thread is connected to the threaded hole and presses on the table body.
In the present solution, helicitic texture is connected convenient for table body with reference body, while being conveniently adjusted table body and reference body connects
The intensity of the position and connection that connect.
Preferably, the reference body is a cylinder, the through-hole is parallel to the axis of the reference body.
In the present solution, cylindrical reference body is convenient for gripping, operation.
Preferably, distance of the centre of sphere for measuring ball apart from the reference plane is 1~2mm.
In the present solution, the distance obtains accurate measured value convenient for compression measuring rod.
Preferably, the scale is dial gauge.
Preferably, the measurement ball is steel ball.
It is wear-resistant in the present solution, ball hardness is high, it is unlikely to deform, accuracy of detection is higher.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can arbitrarily combine to get the utility model respectively compared with
Good example.
The positive effect of the utility model is：It is contacted with centre bore using ball is measured, pressing reference body makes benchmark
Face and the end face of measured hole abut against, and obtain the stroke of measuring rod, to according to the stroke of measuring rod and centre bore aperture
Correspondence between size calculates the aperture of different centre bores, final to determine whether the pore size of centre bore accords with
Standardization ensures the consistency of product center pore size.The detection device detection efficiency is high, accuracy of detection is high.
Description of the drawings
Fig. 1 is the structural schematic diagram of the centre bore special gauge of the preferred embodiment in the utility model.
Fig. 2 is the explosive view of the centre bore special gauge of the preferred embodiment in the utility model.
Structural representation when Fig. 3 is the centre bore special gauge detection workpiece center hole of the preferred embodiment in the utility model
Figure.
Fig. 4 is the structural schematic diagram of workpiece another location state in Fig. 3.
Reference sign：
Scale 100
Table body 110
Display module 120
Measuring rod 130
Measure ball 200
Reference body 300
Through-hole 310
Threaded hole 320
Reference plane 330
Screw 400
Workpiece 500
Centre bore 510
Specific implementation mode
A preferred embodiment is named, and completely illustrates the utility model in conjunction with attached drawing to become apparent from.
Fig. 1-Fig. 4 shows a kind of centre bore special gauge, for detecting the centre bore 510 opened in the end face of workpiece 500
Size.Centre bore special gauge includes：Scale 100 measures ball 200 and reference body 300.Scale 100 include table body 110,
Measuring rod 130 and display module 120.Measuring rod 130 is telescopically connected to table body 110, and one end of measuring rod 130 is located at table body
In 110, display module 120 is used to show the measured value corresponding to the amount of movement of measuring rod 130.It measures ball 200 and is fixed on measurement
One end far from table body 110 in bar 130.Reference body 300 is fixed on table body 110, and reference body 300 is equipped with one towards workpiece 500
Reference plane 330, reference plane 330 perpendicular to measuring rod 130 axial direction, measure ball 200 diameter be more than centre bore 510 it is straight
Diameter, when measurement ball 200 presses on the aperture of centre bore 510 along the axis direction of measuring rod 130, reference plane 330 can be connected to
The end face of workpiece 510.
In the present embodiment, scale 100 is dial gauge.In alternative embodiment, scale 100 can be amesdial etc. its
He can realize the scale 100 for measuring purpose.Ball 200 will be measured to press on centre bore 510, pressing reference body 300 makes benchmark
Face 330 is connected to the end face of centre bore 510, and measuring rod 130 is shunk.The hole of the shrinkage and centre bore 510 of measuring rod 130
Diameter size corresponds, so as to be worth to the pore size of centre bore 510 according to the display on display module 120.
When being detected using 510 detecting tool of centre bore, the centre bore 510 of measurement standard workpiece 500 obtains a canonical measure
Value determines the range of the corresponding qualified measured value of centre bore 510 according to requirement on machining accuracy.Work is detected using this centre bore 510
Dress measures the centre bore 510 of other workpiece 500, if measuring 510 corresponding measured value of centre bore in the range of qualified measured value,
Then 510 size of centre bore of workpiece 500 complies with standard；If measuring 510 corresponding measured value of centre bore in qualified measured value
Range outside, then 510 size of centre bore of workpiece 500 is not inconsistent standardization.
In the present solution, reference body 300 is a cylinder, cylinder is provided with a through-hole 310, and through-hole 310 is parallel to reference body
300 axis.Measuring rod 130, which is more than in through-hole 310, through-hole 310 close to the diameter of the one end for measuring ball 200, measures ball
200 diameter, when the aperture in inspection center hole 510, measuring ball 200 can be reduced in through-hole 310.Cylindrical reference body 300
Convenient for holding, operating.Through-hole 310 has the function of being oriented to, at the same convenient in reference body 300 reference plane 330 with it is to be detected
500 surface of workpiece contacts.
In addition, being provided with a threaded hole 320 in reference body 300, threaded hole 320 is connected with through-hole 310, and centre bore 510 is examined
It further includes screw 400 to survey tooling, and screw 400 is threadedly connected to threaded hole 320 and presses on table body 110.Helicitic texture is convenient for table
Body 110 is connected with reference body 300, while being conveniently adjusted the strong of position that table body 110 and reference body 300 connect and connection
Degree.
It measures distance of the centre of sphere of ball 200 apart from reference plane 330 and is usually set to 1~2mm.One distance is that basis is convenient for
Compress measuring rod 130 and select.
In addition, for ensure measure ball 200 can Reusability and measurement accuracy it is unaffected, ball is measured in the present embodiment
200 are selected as steel ball.
Although the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
Under the premise of without departing substantially from the principles of the present invention and essence, many changes and modifications may be made,
But these change and modification each fall within the scope of protection of the utility model.
Claims (7)
1. a kind of centre bore special gauge is opened for detecting in the size of the centre bore of the end face of workpiece, which is characterized in that
The centre bore special gauge includes：
Scale, the scale include table body, measuring rod and display module, and the measuring rod is telescopically connected to the table body,
One end of the measuring rod is located in the table body, and the display module is for showing corresponding to the amount of movement of the measuring rod
Measured value；
Ball is measured, the ball that measures is fixed on one end far from the table body in the measuring rod；With
Reference body, the reference body are fixed on the table body, and the reference body is equipped with the base of an end face towards the workpiece
Quasi- face, the reference plane is perpendicular to the axial direction of the measuring rod, and the diameter for measuring ball is more than the diameter of the centre bore, institute
It states and measures ball when pressing on the aperture of the centre bore along the axis direction of the measuring rod, the reference plane can be connected to institute
State the end face of workpiece.
2. centre bore special gauge as described in claim 1, which is characterized in that a through-hole is provided in the reference body, it is described
Diameter of the measuring rod close to described one end for measuring ball in the through-hole, the through-hole is more than the diameter for measuring ball.
3. centre bore special gauge as claimed in claim 2, which is characterized in that be provided with a threaded hole, institute in the reference body
It states threaded hole with the through-hole to be connected, the centre bore special gauge further includes screw, and the screw thread is connected to described
Threaded hole simultaneously presses on the table body.
4. centre bore special gauge as claimed in claim 2, which is characterized in that the reference body is a cylinder, described logical
Hole is parallel to the axis of the reference body.
5. centre bore special gauge as described in claim 1, which is characterized in that the centre of sphere for measuring ball is apart from the benchmark
The distance in face is 1~2mm.
6. centre bore special gauge as described in claim 1, which is characterized in that the scale is dial gauge.
7. the centre bore special gauge as described in any one of claim 1-6, which is characterized in that the measurement ball is steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721909380.6U CN207675149U (en) | 2017-12-29 | 2017-12-29 | Centre bore special gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721909380.6U CN207675149U (en) | 2017-12-29 | 2017-12-29 | Centre bore special gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207675149U true CN207675149U (en) | 2018-07-31 |
Family
ID=62972989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721909380.6U Active CN207675149U (en) | 2017-12-29 | 2017-12-29 | Centre bore special gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207675149U (en) |
-
2017
- 2017-12-29 CN CN201721909380.6U patent/CN207675149U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |