CN206113790U - A percentage table connects pole for measuring work piece cavity inside dimension - Google Patents
A percentage table connects pole for measuring work piece cavity inside dimension Download PDFInfo
- Publication number
- CN206113790U CN206113790U CN201621162317.6U CN201621162317U CN206113790U CN 206113790 U CN206113790 U CN 206113790U CN 201621162317 U CN201621162317 U CN 201621162317U CN 206113790 U CN206113790 U CN 206113790U
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- China
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- bar
- extension bar
- dial gauge
- cavity inside
- inside dimension
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a percentage table connects pole for measuring work piece cavity inside dimension, the structure that connects the pole is the L form, and the top of vertical pole is equipped with the external screw thread, the external screw thread is connected with the percentage table measuring stick, and the horizon bar is equipped with the gauge head cylinder, and gauge head cylindrical diameter size precision tolerance is 0.002mm. The right angle connects the innovative design of pole for through the reading of percentage table, to measure the geometry of special workpiece cavity, thereby guaranteed processingquality, the part of having avoided causing because of the size is overproof is scrapped.
Description
Technical field
This utility model belongs to survey tool technical field, says with specifically relating to, and it is related to a kind of for measuring workpiece cavity
The dial gauge extension bar of inside dimension.
Background technology
At present common dial gauge or lever dial indicator, all difficult for the size of measurement workpiece lumen, and is subject to
The restriction of Workpiece structure, does not often measure.The tolerance of the bore of some workpiece between 0.03～0.05mm, and cavity with
Typically between 0.3～0.5mm, the measurement head of dial gauge cannot avoid edge to the burr length at the junction bore edge of bore
The burr at place, causes the error for measuring very big, it is impossible to ensure the quality of product.
Utility model content
Main purpose of the present utility model is for the problems referred to above, there is provided one kind is used to measure workpiece cavity inside dimension
Dial gauge extension bar.
A kind of dial gauge extension bar for measuring workpiece cavity inside dimension, including extension bar 1 and dial gauge 2.The dial gauge 2
It is provided with dial plate 21 and measurement bar 22.The structure of the extension bar 1 is L shapes, and external screw thread 11 is provided with above vertical bar, and centre is provided with moves back
Cutter groove 12, lower section is provided with short cylindrical 13.Vertical bar is provided with cuboid 14 with horizon bar in its 90 ° of angular positions；Horizon bar is provided with
Long cylinder 15, gauge head cylinder 16, truncate positive round cone 17, the one end of the long cylinder 15 connection cuboid 14, the other end coaxially connects
Gauge head cylinder 16 is connect, the truncate bottom surface of positive round cone 17 is coaxially connected in long cylinder 15；When using, the external screw thread 11 is connected
To in the measurement bar 22.
The technical scheme for further limiting is as follows：
The external screw thread 11 of the extension bar 1 is M2.5 × 0.35 closely-pitched regular screw threads.
A diameter of 3.5～4.5mm of the gauge head cylinder 15 of the extension bar 1, its dimensional accuracy tolerance is ± 0.002mm.
The scale division value of the dial gauge 2 is 0.01mm, and measurement range is 0～10mm.
The depth of the escape 12 of the extension bar 1 is 0.35～0.45mm.
Effective technology effect of the present utility model is：
It is the innovative design of dial gauge extension bar, this extension bar is connected on dial gauge, by the reading of dial gauge, measurement is special
The physical dimension of different workpiece cavity, so as to ensure that crudy, it is to avoid the part rejection caused because of dimension overproof.
Description of the drawings
Fig. 1 is this utility model structural representation.
Fig. 2 is this utility model connection rod structure schematic diagram.
Fig. 3, Fig. 4, Fig. 5 are that this utility model measures workpiece schematic diagram.
Sequence number in figure：Extension bar 1, external screw thread 11, escape 12, short cylindrical 13, cuboid 14, long cylinder 15, gauge head cylinder
16th, truncate positive round cone 17, dial gauge 2, dial plate 21, measurement bar 22, workpiece 3, upper plane 31, midplane 32, lower plane 33,
One square hole 34, second hole 35.
Specific embodiment
Below in conjunction with the accompanying drawings, by embodiment, the utility model is further described.
Embodiment
Referring to Fig. 1, Fig. 2, a kind of dial gauge extension bar for measuring workpiece cavity inside dimension, including extension bar 1 and dial gauge
2.The dial gauge 2 is provided with dial plate 21 and measurement bar 22, and the scale division value of the dial gauge 2 is 0.01mm, and measurement range is 0～
10mm.The structure of the extension bar 1 is L shapes, and external screw thread 11 is provided with above vertical bar, and centre is provided with escape 12, and lower section is provided with
Short cylindrical 13, the external screw thread 11 of the extension bar 1 is M2.5 × 0.35 closely-pitched regular screw threads, and the depth of the escape 12 is
0.4mm.Vertical bar is provided with cuboid 14 with horizon bar in its 90 ° of angular positions；Horizon bar is provided with long cylinder 15, gauge head cylinder
16th, truncate positive round cone 17, the one end of the long cylinder 15 connection cuboid 14, the coaxially connected gauge head cylinder 16 of the other end is truncate
The bottom surface of positive round cone 17 is coaxially connected in long cylinder 15, a diameter of 4.001mm of the gauge head cylinder 15 of the extension bar 1.
Referring to Fig. 3, Fig. 4, Fig. 5, workpiece 3 is square box structure, and is provided with plane 31, first hole 34, second hole
35, the first hole 34 leads down to square box middle part perpendicular to upper plane 31；The second hole 35 is located at square box
In inner chamber, arrange in horizontal direction, and with the insertion of first hole 34, second hole 35 is provided with midplane 32, lower plane 33.On
Plane 31 is less than the maximum range of dial gauge 2 with the vertical range numerical valu of lower plane 33, and between midplane 32, lower plane 33
Apart from the diameter of size ＞ gauge head cylinder 15.
（1）The distance between measurement midplane 32, lower plane 33 size L1：Extension bar 1 is tightened in measurement bar 22, it is hand-held
Dial gauge 2, allows gauge head cylinder 16 to be placed into the measurement position of first hole 34, and touches lower plane 33, presses down dial gauge
2, allow percentage meter reading pointer to point to 9mm positions, illustrate that now dial gauge extension bar 1 has eaten deep 9mm, is then lifted out dial gauge 2,
When the upper contact of gauge head cylinder 16 is to midplane 32, position readings X of the pointer now in dial plate 21 are recorded, then size L1=
9-X+4, the scale division value of dial gauge 2 is 0.01mm, and certainty of measurement can be as accurate as 2 decimals.
（2）The distance between plane 31, lower plane 33 size L2 in measurement：Hand-held dial gauge 2, allows gauge head cylinder 16 to place
To the measurement position of first hole 34, and lower plane 33 is touched, press down dial gauge 2, allow percentage meter reading pointer to point to 9mm
Position, illustrates that now dial gauge extension bar 1 has eaten deep 9mm, is then lifted out dial gauge 2, allows the contacts-side-down of gauge head cylinder 16 to upper
During plane 31, position readings Y of the pointer now in dial plate 21 are recorded, then size L2=X-Y, the scale division value of dial gauge 2 is
0.01mm, certainty of measurement can be as accurate as 2 decimals.
（3）The distance between plane 31, midplane 32 size L3 in measurement：
L3=L2-L1= (X-Y)-( 9-X+4)=2X-Y-13
The scale division value of dial gauge 2 is 0.01mm, and certainty of measurement can be as accurate as 2 decimals.
Above content not makees any pro forma restriction to structure of the present utility model, shape.It is every according to this practicality
Any simple modification, equivalent variations and modification that new technical spirit is made to above example, still fall within this practicality new
In the range of type technical scheme.
Claims (5)
1. a kind of dial gauge extension bar for measuring workpiece cavity inside dimension, including extension bar（1）And dial gauge（2）, the percentage
Table（2）It is provided with dial plate（21）And measurement bar（22）；It is characterized in that：
The extension bar（1）Structure be L shapes, external screw thread is provided with above vertical bar（11）, centre is provided with escape（12）, lower section
It is provided with short cylindrical（13）；Vertical bar is provided with cuboid with horizon bar in its 90 ° of angular positions（14）；Horizon bar is provided with long cylinder
（15）, gauge head cylinder（16）, truncate positive round cone（17）, the long cylinder（15）One end connects cuboid（14）, the other end is same
Axle connects gauge head cylinder（16）, truncate positive round cone（17）Bottom surface is coaxially connected in long cylinder（15）On；When using, will be described outer
Screw thread（11）It is connected to the measurement bar（22）On.
2. a kind of dial gauge extension bar for measuring workpiece cavity inside dimension according to claim 1, it is characterised in that：Institute
State extension bar（1）External screw thread（11）For M2.5 × 0.35 closely-pitched regular screw threads.
3. a kind of dial gauge extension bar for measuring workpiece cavity inside dimension according to claim 1, it is characterised in that：Institute
State extension bar（1）Gauge head cylinder（15）A diameter of 3.5～4.5mm, its dimensional accuracy tolerance be ± 0.002mm.
4. a kind of dial gauge extension bar for measuring workpiece cavity inside dimension according to claim 1, it is characterised in that：Institute
State dial gauge（2）Scale division value be 0.01mm, measurement range be 0～10mm.
5. a kind of dial gauge extension bar for measuring workpiece cavity inside dimension according to claim 1, it is characterised in that：It is described to connect
Bar（1）Escape（12）Depth be 0.35～0.45mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621162317.6U CN206113790U (en) | 2016-10-25 | 2016-10-25 | A percentage table connects pole for measuring work piece cavity inside dimension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621162317.6U CN206113790U (en) | 2016-10-25 | 2016-10-25 | A percentage table connects pole for measuring work piece cavity inside dimension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206113790U true CN206113790U (en) | 2017-04-19 |
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ID=58526849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621162317.6U Active CN206113790U (en) | 2016-10-25 | 2016-10-25 | A percentage table connects pole for measuring work piece cavity inside dimension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206113790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036696A (en) * | 2017-11-30 | 2018-05-15 | 贵州凯星液力传动机械有限公司 | A kind of measuring device and measuring method of inner bore of part dovetail groove position dimension |
-
2016
- 2016-10-25 CN CN201621162317.6U patent/CN206113790U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036696A (en) * | 2017-11-30 | 2018-05-15 | 贵州凯星液力传动机械有限公司 | A kind of measuring device and measuring method of inner bore of part dovetail groove position dimension |
| CN108036696B (en) * | 2017-11-30 | 2020-09-11 | 贵州凯星液力传动机械有限公司 | Device and method for measuring position size of dovetail groove in inner hole of part |
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