CN203148362U - Vernier caliper measuring hole-groove symmetry degree - Google Patents
Vernier caliper measuring hole-groove symmetry degree Download PDFInfo
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- CN203148362U CN203148362U CN 201320113238 CN201320113238U CN203148362U CN 203148362 U CN203148362 U CN 203148362U CN 201320113238 CN201320113238 CN 201320113238 CN 201320113238 U CN201320113238 U CN 201320113238U CN 203148362 U CN203148362 U CN 203148362U
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- vernier caliper
- measuring jaw
- measuring
- jaw
- hole
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Abstract
The utility model discloses a vernier caliper measuring a hole-groove symmetry degree, which belongs to the machining precision measurement field. The vernier caliper comprises a vernier caliper body, a fixed measuring jaw fixed on one end of the vernier caliper body and a movable measuring jaw capable of sliding on the vernier caliper body. The fixed measuring jaw is longer than the movable measuring jaw. The length of the fixed measuring jaw is no less than the diameter of a shaft to be measured. The length difference between the measuring plane of the fixed measuring jaw and the measuring plane of the movable measuring jaw is larger than the radius of the shaft to be measured. By changing the two measuring jaws of a conventional vernier caliper, namely by elongating the fixed measuring jaw of the vernier caliper and shortening the movable measuring jaw of the vernier caliper, the vernier caliper provided by the utility model can make the shortened movable measuring jaw inserted into component holes and grooves for dimension measurement. The hole-groove symmetry degree error can be acquired through conversion according to the measured value. The vernier caliper provided by the utility model enables convenient and rapid measurement of the symmetry degree between a hole and a groove on the shaft.
Description
Technical field:
The utility model relates to the vernier caliper of a kind of measured hole, groove symmetry, belongs to machining accuracy and measures.
Background technology:
The shaft key groove symmetry is measured, and can directly influence the technical feature after key connecting is assembled.At present, the workshop processing site is generally measured with the keyway feeler gauge the measurement of keyway.This measuring method is not high for the keyway requirement on machining accuracy, can meet the demands substantially; The shaft key groove symmetry measuring method that also has is mainly measured with V shape iron, flat board, dial gauge and gauge stand common name signing method, and this method operation is not convenient, and measurement means is loaded down with trivial details, and precision reliability is poor.
Summary of the invention:
For addressing the above problem, the utility model provides the vernier caliper of a kind of measured hole, groove symmetry.
The utility model is realized with following technical scheme: the vernier caliper of a kind of gaging hole, groove symmetry, comprise the vernier caliper blade, be fixed on the fixedly measuring jaw of blade one end and the movable measuring jaw that can slide at blade, the length of described fixedly measuring jaw is greater than the length of movable measuring jaw, and fixedly the length of measuring jaw is not less than the diameter of measured axis; Fixedly the difference of the length of the measurement face of the measurement face of measuring jaw and movable measuring jaw is greater than the radius of measured axis.
The vernier caliper of above-mentioned gaging hole, groove symmetry mainly by changing two measuring jaws of common calliper, namely lengthens the fixedly measuring jaw of vernier caliper, shortens the movable measuring jaw of vernier caliper, the movable measuring jaw of shortening can be put in carry out dimensional measurement in hole in piece part, the groove.The numerical value of measuring obtains the symmetry error of hole, groove by conversion.
The beneficial effects of the utility model are to measure convenient, fast to the hole on the axle, groove symmetry.
Description of drawings
Below in conjunction with drawings and Examples structure of the present utility model is further specified.
Fig. 1 is structural representation of the present utility model;
Fig. 2 utilizes the utility model to measure the symmetry synoptic diagram of keyway;
Fig. 3 is the symmetry synoptic diagram that utilizes the utility model measured hole.
Among the figure: 1, vernier caliper blade, 2, fixing measuring jaw, 3, movable measuring jaw, 4, keyway, 5, the hole.
Embodiment
As shown in Figure 1, the vernier caliper of a kind of gaging hole, groove symmetry, comprise vernier caliper blade 1, one end of blade is fixing measuring jaw 2, the movable measuring jaw 3 that can slide at blade is arranged on the blade, the length of described fixedly measuring jaw is greater than the length of movable measuring jaw, and fixedly the length of measuring jaw 2 is not less than the diameter of measured axis; Fixedly the difference of the length of the measurement face of the measurement face of measuring jaw 2 and movable measuring jaw 3 is greater than the radius of measured axis.
As shown in Figure 2, when measuring the symmetry of keyway, the fixing measurement face of measuring jaw 2 is close on the measured axis, movable measuring jaw 3 injects on the axle in the keyway, and its measurement face is adjacent to cell wall; The numerical value of reading obtains the symmetry error of groove by conversion.
As shown in Figure 3, when the symmetry of measured hole, the fixing measurement face of measuring jaw 2 is close on the measured axis, in the hole that movable measuring jaw 3 injects on the axle, its measurement face is adjacent to the hole wall upper end; The numerical value of reading obtains the symmetry error of groove by conversion.
Claims (1)
1. the vernier caliper of a gaging hole, groove symmetry, comprise vernier caliper blade (1), be fixed on the fixedly measuring jaw (2) of blade one end and the movable measuring jaw (3) that can slide at blade, it is characterized in that: the length of described fixedly measuring jaw is greater than the length of movable measuring jaw, and fixedly the length of measuring jaw (2) is not less than the diameter of measured axis; Fixedly the difference of the length of the measurement face of the measurement face of measuring jaw (2) and movable measuring jaw (3) is greater than the radius of measured axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320113238 CN203148362U (en) | 2013-03-12 | 2013-03-12 | Vernier caliper measuring hole-groove symmetry degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320113238 CN203148362U (en) | 2013-03-12 | 2013-03-12 | Vernier caliper measuring hole-groove symmetry degree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148362U true CN203148362U (en) | 2013-08-21 |
Family
ID=48975879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320113238 Expired - Fee Related CN203148362U (en) | 2013-03-12 | 2013-03-12 | Vernier caliper measuring hole-groove symmetry degree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203148362U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651136A (en) * | 2016-03-31 | 2016-06-08 | 合肥市远大轴承锻造有限公司 | Vernier caliper for measuring chamfer |
| CN108195274A (en) * | 2018-03-01 | 2018-06-22 | 成都成量工具集团有限公司 | A kind of double bond slot measures slide calliper rule with respect to cylinder datum axis symmetry deviation |
-
2013
- 2013-03-12 CN CN 201320113238 patent/CN203148362U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651136A (en) * | 2016-03-31 | 2016-06-08 | 合肥市远大轴承锻造有限公司 | Vernier caliper for measuring chamfer |
| CN108195274A (en) * | 2018-03-01 | 2018-06-22 | 成都成量工具集团有限公司 | A kind of double bond slot measures slide calliper rule with respect to cylinder datum axis symmetry deviation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20150312 |
|
| EXPY | Termination of patent right or utility model |