CN2700825Y - Slide measure - Google Patents
Slide measure Download PDFInfo
- Publication number
- CN2700825Y CN2700825Y CN 200420059990 CN200420059990U CN2700825Y CN 2700825 Y CN2700825 Y CN 2700825Y CN 200420059990 CN200420059990 CN 200420059990 CN 200420059990 U CN200420059990 U CN 200420059990U CN 2700825 Y CN2700825 Y CN 2700825Y
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- CN
- China
- Prior art keywords
- jaw
- vernier caliper
- movable jaw
- stationary jaw
- plane
- 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
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a measuring tool, particularly a vernier caliper. The utility model comprises a fixed ruler with a stationary jaw and a movable ruler with a movable jaw, wherein the slope angles alpha of the inclined surfaces on the end surfaces of the outer sides of the stationary jaw and the movable jaw are consistent with the slope angle of the inclined surface or the lead angle of the end part of the measured inner circle. In order to improve the measurement precision further, the utility model increases the length 'a' of the vertical surfaces on the end surfaces of the outer sides of the stationary jaw and the movable jaw. The structure of the stationary jaw and the movable jaw of the existing vernier caliper is improved in the utility model, the improved vernier caliper can more exactly measure the inside diameter of the circle of which the end part has the lead angle or the inclined surface. Because the slope angles of the inclined surfaces on the end surfaces of the outer sides of the stationary jaw and the movable jaw of the improved vernier caliper are consistent with the slope angle of the inclined surface or the lead angle of the end part of the measured inner circle, the mutual interference of both parts are avoided, an operator measures easily and conveniently, and the measured data is accurate. The overproof problem of the circular degree of products can be controlled effectively, and the process quality standard is satisfied.
Description
Technical field
The utility model relates to a kind of survey instrument, is specially vernier caliper.
Background technology
Vernier caliper is made of the fixed ruler that has stationary jaw, the adjustable rule that has a movable jaw.The outside end face of stationary jaw and movable jaw (promptly card is surveyed the end face of circle internal diameter) is made of inclined-plane and vertical plane.The angle of inclination on the inclined-plane on the stationary jaw of existing vernier caliper, the movable jaw outside end face is arbitrarily, fixes, when there are lead angle or inclined-plane in the end of circle in by side, because misfit at the angle of inclination on the inclined-plane on stationary jaw, the movable jaw outside end face and the lead angle of tested interior rounded ends or the angle of inclination on inclined-plane, both interfere mutually, not only make and measure difficulty, and cause survey measurements inaccurate; And the length of the vertical plane on the stationary jaw of existing vernier caliper, movable jaw outboard end is shorter, when there are lead angle or inclined-plane in the end of circle in tested, can further influence measuring accuracy.As when measuring engine commutator sheet group internal diameter, because commutator segment dovetail afterbody has the inclined-plane at one 15 degree angle, inclined-plane interference on this inclined-plane and stationary jaw, the movable jaw outboard end, make the operative employee measure difficulty, the survey measurements of vernier caliper is inaccurate, easily cause commutator segment group circularity over tolerance, promptly influence manufacturing schedule, also influence product quality.
Summary of the invention
When the utility model solves the round internal diameter that existing vernier caliper measurement end has lead angle or inclined-plane, because interfere mutually with tested interior rounded ends lead angle or inclined-plane on the inclined-plane on stationary jaw, the movable jaw outboard end, and then influence the problem of measuring accuracy, a kind of improved vernier caliper is provided.
The utility model is to adopt following technical scheme to realize: vernier caliper, comprise the fixed ruler that has stationary jaw, the adjustable rule that has movable jaw, the tilt angle alpha on the inclined-plane on its stationary jaw, the movable jaw outside end face is made with consistent by the angle of inclination on the lead angle of rounded ends in the side or inclined-plane.With this avoid because of the angle of inclination on the inclined-plane on the end face of stationary jaw, the movable jaw outside with by the angle of inclination on the lead angle of rounded ends in the side or inclined-plane inconsistent cause both interfere, influence the problem of measuring accuracy mutually.
For further improving measuring accuracy, increase the length a (being the card base length of claw) of the vertical plane on stationary jaw, the movable jaw outside end face.After the length a of vertical plane increases, measure the end have lead angle or tiltedly and round internal diameter the time, tested interior circle can deeper be inserted in stationary jaw and movable jaw end, make stationary jaw keep well contacting with the inwall of tested interior circle, thereby reach the purpose of further raising measuring accuracy with the movable jaw outside.
The utility model improves the stationary jaw of existing vernier caliper and the structure of movable jaw, and the vernier caliper after the improvement can be measured the round internal diameter that the end has lead angle or inclined-plane more accurately.Because the angle of inclination on the inclined-plane on the stationary jaw of the slide calliper rule after improving, the movable jaw outside end face has avoided both to interfere mutually with consistent by the angle of inclination on the lead angle of rounded ends in the side or inclined-plane, the operative employee measure easy and convenient and measurement data accurate.Can control the problem of product circularity over tolerance effectively, satisfy craft quality standard.
Description of drawings
Fig. 1 is the structural representation of vernier caliper described in the utility model;
Synoptic diagram when Fig. 2 is a vernier caliper measurement commutator segment group internal diameter described in the utility model;
Wherein, the dotted line on the claw of the vernier caliper among Fig. 2 representative needs the part of processing on existing vernier caliper.
Embodiment
Vernier caliper measurement engine commutator sheet group internal diameter.Because commutator segment dovetail afterbody has the inclined-plane at one 15 degree angle, therefore, the circle two ends form the inclined-plane at 15 degree angles in the engine commutator sheet group.Correspondingly, the tilt angle alpha on the inclined-plane 1 on vernier caliper stationary jaw, the movable jaw outside end face is made 15 degree.Like this, avoid inclined-plane and the interior inclined-plane interference of justifying two ends of engine commutator sheet group on vernier caliper stationary jaw, the movable jaw outside end face, solved commutator segment group circularity over tolerance problem.
The length a (being the card base length of claw) of the vertical plane 2 on existing vernier caliper stationary jaw, the movable jaw outside end face is 11mm.The length a of the vertical plane on stationary jaw, the movable jaw outside end face increases to 20mm.Further improve measuring accuracy with this.
Claims (4)
1, a kind of vernier caliper, comprise the fixed ruler that has stationary jaw, the adjustable rule that has movable jaw, it is characterized by: the tilt angle alpha on the inclined-plane (1) on its stationary jaw, the movable jaw outside end face is made with consistent by the angle of inclination on the lead angle of rounded ends in the side or inclined-plane.
2, vernier caliper as claimed in claim 1 is characterized by: the length a that increases the vertical plane (2) on stationary jaw, the movable jaw outside end face.
3, vernier caliper as claimed in claim 1 or 2 is characterized by: the tilt angle alpha on the inclined-plane (1) on stationary jaw, the movable jaw outside end face is made 15 degree.
4, vernier caliper as claimed in claim 2 is characterized by: the length a of the vertical plane (2) on stationary jaw, the movable jaw outside end face increases to 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420059990 CN2700825Y (en) | 2004-05-31 | 2004-05-31 | Slide measure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420059990 CN2700825Y (en) | 2004-05-31 | 2004-05-31 | Slide measure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2700825Y true CN2700825Y (en) | 2005-05-18 |
Family
ID=34777447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420059990 Expired - Fee Related CN2700825Y (en) | 2004-05-31 | 2004-05-31 | Slide measure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2700825Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679834A (en) * | 2012-05-31 | 2012-09-19 | 无锡宝牛阀业有限公司 | Three-eccentric butterfly valve measuring tool |
-
2004
- 2004-05-31 CN CN 200420059990 patent/CN2700825Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679834A (en) * | 2012-05-31 | 2012-09-19 | 无锡宝牛阀业有限公司 | Three-eccentric butterfly valve measuring tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YONGJI NEW SPEED ELECTRIC MOTOR CO. Free format text: FORMER OWNER: YONGJI MOTOR FACTORY, CHINESE BEICHE GROUP Effective date: 20081031 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081031 Address after: No. 18, motor street, Yongji, Shanxi Province: 044500 Patentee after: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. Address before: No. 18, motor street, Yongji, Shanxi Province: 044500 Patentee before: CNR Yongji Electric Machine Factory |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050518 |