CN201628524U - Vernier caliper for degree of keyway symmetry - Google Patents
Vernier caliper for degree of keyway symmetry Download PDFInfo
- Publication number
- CN201628524U CN201628524U CN2010201158749U CN201020115874U CN201628524U CN 201628524 U CN201628524 U CN 201628524U CN 2010201158749 U CN2010201158749 U CN 2010201158749U CN 201020115874 U CN201020115874 U CN 201020115874U CN 201628524 U CN201628524 U CN 201628524U
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- CN
- China
- Prior art keywords
- cross bar
- gauge
- supporting claw
- bearing pawl
- vernier caliper
- 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 vernier caliper for degree of keyway symmetry, which comprises a main gauge and a secondary gauge. The main gauge comprises a cross bar and a fixed supporting claw arranged at one end of the cross bar, scale marks are arranged on the surface of the cross bar of the main gauge, the secondary gauge is a right angled component, the surface of a cross bar of the secondary gauge is provided with scale marks, a vertical bar of the secondary gauge is a measurement claw, and the secondary gauge is sleeved on the cross bar of the main gauge and capable of moving left and right. The vernier caliper is characterized in that a movable supporting claw is arranged on the fixed supporting claw and comprises a cross bar and vertical rods which are respectively arranged at two ends of the cross bar, and one end of the cross bar of the movable supporting claw is disposed on the fixed supporting claw and capable of moving horizontally. Besides, lower surfaces of the vertical rods of the movable supporting claw and the lower surface of the fixed supporting claw are located on the same horizontal plane. The vernier caliper is simple in structure, has measurement method similar to a general tool, is convenient and accurate when used for measuring degree of keyway symmetry, and increases processing quality and efficiency of whole mechanical products.
Description
Technical field
The utility model relates to a kind of keyway symmetry vernier caliper, especially a kind of specific purpose tool of symmetry when checking working shaft-like part keyway.
Background technology
When existing processing keyway symmetry, generally adopt the tool setting ocular estimate, i.e. bowlder outside rotary cutter contact part, the area of a circle appears and the moon lack and judge.If range estimation is wrong, then when assembling, can cause difficulty in entire product.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of.
According to the technical scheme that the utility model provides, a kind of keyway symmetry vernier caliper comprises main scale and secondary chi, and described main scale comprises a cross bar and is located at the fixed bearing pawl of cross bar one end, is provided with scale on the cross bar surface of main scale; Described secondary chi is the square member, is provided with scale on the cross bar surface of secondary chi, and the following plumbing bar of secondary chi is a measuring claw; Described secondary chi is set on the cross bar of main scale, but move left and right; Feature is: on described fixed bearing pawl the expansion bearing pawl is set, described expansion bearing pawl comprises a cross bar and is separately positioned on the following plumbing bar at cross bar two ends; Cross bar one end of expansion bearing pawl is arranged on the fixed bearing pawl, but and along continuous straight runs move.
The lower surface of the lower surface of the following plumbing bar of described expansion bearing pawl and fixed bearing pawl is on same surface level.
The utility model function is simple, and measuring method and measuring tool commonly used use similar, and is not only convenient but also accurate when measuring keyway symmetry, and improved the crudy and the efficient of whole engineering goods.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A view of Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As Fig. 1～shown in Figure 2: the keyway symmetry vernier caliper comprises expansion bearing pawl 1, fixed bearing pawl 2, main scale 3, secondary chi 4 etc.
The utility model comprises main scale 3 and secondary chi 4, and described main scale 3 comprises a cross bar and is located at the fixed bearing pawl 2 of cross bar one end, is provided with scale on the cross bar surface of main scale 3; Described secondary chi 4 is the square member, is provided with scale on the cross bar surface of secondary chi 4, and the following plumbing bar of secondary chi 4 is a measuring claw; Described secondary chi 4 is set on the cross bar of main scale 3, but move left and right; Expansion bearing pawl 1 is set on fixed bearing pawl 2, and described expansion bearing pawl 1 comprises a cross bar and is separately positioned on the following plumbing bar at cross bar two ends, and cross bar one end of expansion bearing pawl 1 is arranged on the fixed bearing pawl 2, but and along continuous straight runs move; The lower surface of the lower surface of the following plumbing bar of expansion bearing pawl 1 and fixed bearing pawl 1 is on same surface level.
The utility model in use, and is simultaneously inboard near keyway by fixed bearing pawl 2, and three supporting-points of expansion bearing pawl 1 and fixed bearing pawl 2 lower surfaces are near bottom land, and moving sets chi 4 is measured then, by the distance of groove one side to the periphery; Transfer opposite side again, same quadrat method, the distance of measurement opposite side./ 2nd of a gained range difference is deviate.Precision of the present utility model is in 0.02mm.
Claims (2)
1. a keyway symmetry vernier caliper comprises main scale (3) and secondary chi (4), and described main scale (3) comprises a cross bar and is located at the fixed bearing pawl (2) of cross bar one end, is provided with scale on the cross bar surface of main scale (3); Described secondary chi (4) is the square member, is provided with scale on the cross bar surface of secondary chi (4), and the following plumbing bar of secondary chi (4) is a measuring claw; Described secondary chi (4) is set on the cross bar of main scale (3), but move left and right; It is characterized in that: expansion bearing pawl (1) is set on described fixed bearing pawl (2), and described expansion bearing pawl (1) comprises a cross bar and is separately positioned on the following plumbing bar at cross bar two ends; Cross bar one end of expansion bearing pawl (1) is arranged on the fixed bearing pawl (2), but and along continuous straight runs move.
2. keyway symmetry vernier caliper as claimed in claim 1 is characterized in that: the lower surface of the lower surface of plumbing bar and fixed bearing pawl (1) is on same surface level under the described expansion bearing pawl (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201158749U CN201628524U (en) | 2010-02-11 | 2010-02-11 | Vernier caliper for degree of keyway symmetry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201158749U CN201628524U (en) | 2010-02-11 | 2010-02-11 | Vernier caliper for degree of keyway symmetry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201628524U true CN201628524U (en) | 2010-11-10 |
Family
ID=43059921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201158749U Expired - Fee Related CN201628524U (en) | 2010-02-11 | 2010-02-11 | Vernier caliper for degree of keyway symmetry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201628524U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937406A (en) * | 2012-11-16 | 2013-02-20 | 徐州工业职业技术学院 | Shaft keyway symmetry measuring device |
| CN105157540A (en) * | 2015-05-14 | 2015-12-16 | 刘美艺 | Shaft keyway symmetry error measurement gauge |
-
2010
- 2010-02-11 CN CN2010201158749U patent/CN201628524U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937406A (en) * | 2012-11-16 | 2013-02-20 | 徐州工业职业技术学院 | Shaft keyway symmetry measuring device |
| CN105157540A (en) * | 2015-05-14 | 2015-12-16 | 刘美艺 | Shaft keyway symmetry error measurement gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20120211 |