CN203642860U - Device for measuring symmetry degree of shaft keyway - Google Patents
Device for measuring symmetry degree of shaft keyway Download PDFInfo
- Publication number
- CN203642860U CN203642860U CN201320842509.1U CN201320842509U CN203642860U CN 203642860 U CN203642860 U CN 203642860U CN 201320842509 U CN201320842509 U CN 201320842509U CN 203642860 U CN203642860 U CN 203642860U
- Authority
- CN
- China
- Prior art keywords
- dial indicator
- dial gauge
- symmetry degree
- vertical rod
- shaft
- 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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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a device for measuring symmetry degree of a shaft keyway, and belongs to machining precision measuring tools. The device for measuring the symmetry degree of the shaft keyway comprises a piece of V-shaped iron, a magnetic chuck absorbed to the V-shaped iron, a horizontal rod, a vertical rod, a dial indicator, a dial indicator fixing seat and an equal ratio lever which is installed on the outer end of the dial indicator fixing seat and is hinged with a shaft of the dial indicator fixing seat. Firstly, a workpiece is placed in a V-shaped groove of the V-shaped iron, the positions of the vertical rod and the horizontal rod are adjusted and are calibrated by a right-angle ruler, the dial indicator fixing seat is fixed on the horizontal rod, the dial indicator is installed on the dial indicator fixing seat, an indicator head touch tip of the dial indicator is contacted with the equal ratio level, the dial indicator is aligned to a zero position and moved horizontally in an axial direction of the workpiece, and the maximum deviation value of the dial indicator is read; then, the measuring device is turned for 180 degrees, the measurement is carried out with the above method, and the maximum deviation value of the dial indicator is read; and finally, measured values are properly converted and calculated, so that an error value of the symmetry degree is obtained, and the qualification of the symmetry degree of the shaft keyway is judged. The structure is simple, the operation is convenient, the measurement range is wide, and the accuracy is high.
Description
Technical field
The utility model belongs to machining accuracy survey instrument, is specifically related to a kind of device for measuring key slot symmetry degree of shaft.
Background technology
axle keyway symmetry measurement is widely used in motor, lathe, automobile making and all axial workpieces with keyway connection.The applicant discloses a kind of " device for measuring key slot symmetry degree of shaft and measuring method ", (publication number is 103245281A), it comprises horizon bar, vertical rod, is arranged on the dial gauge holder on horizon bar and is arranged on dial gauge and the geometric ratio lever on holder.When foregoing invention is measured, utensil is not easy to fix, inconvenient operation, and measuring accuracy is poor, and measurement data is unstable.
Summary of the invention
In order to address the above problem, the utility model provides a kind of device for measuring key slot symmetry degree of shaft, is connected with magnetic suction disc in vertical rod lower end, and magnetic suction disc is adsorbed on V shape iron.When measurement, measuring appliance is more stable, uses simply, and measurement data is stable, and degree of accuracy is good, easy to carry.
The utility model is achieved through the following technical solutions: a kind of device for measuring key slot symmetry degree of shaft, it comprises horizon bar, vertical rod, dial gauge holder, dial gauge and geometric ratio lever.Described horizon bar one end is connected with the upper end of vertical rod by bolt II, and the other end of horizon bar and dial gauge holder are fastenedly connected.Described dial gauge holder outer end is hinged by jointed shaft and geometric ratio lever, and dial gauge holder upper end is manufactured with pilot hole.Described dial gauge is arranged on dial gauge holder from the side near horizon bar by pilot hole, and the gauge outfit of dial gauge is touched an end in contact of point and geometric ratio lever, and dial gauge is fixed on dial gauge holder by trip bolt.The other end of described geometric ratio lever is provided with the contact contacting with measured workpiece point.It is characterized in that: the lower end of described vertical rod is connected with magnetic suction disc.Described magnetic suction disc is adsorbed on V shape iron one end of place work piece.
Described magnetic suction disc and vertical rod are fastenedly connected by bolt I.
Described magnetic suction disc is rectangular parallelepiped or square.
The beneficial effects of the utility model are: device for measuring key slot symmetry degree of shaft is simple in structure, convenient to operation, measurement range is wide, precision is high, lightweight, be easy to carry, solved that measurement data is unstable, utensil is not easy the problem of fixing, measuring accuracy is poor, the requirement that can meet current machining and measure axle keyway symmetry, is to measure the desirable instrument of axle keyway symmetry.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Accompanying drawing is the utility model structural representation.
In figure: 1, magnetic suction disc, 2, bolt I, 3, vertical rod, 4, horizon bar, 5, bolt II, 6, dial gauge, 7, trip bolt, 8, dial gauge holder, 9, geometric ratio lever, 10, V shape iron.
Embodiment
As shown in drawings, the utility model it comprise horizon bar 4, vertical rod 3, dial gauge holder 8, dial gauge 6 and geometric ratio lever 9.Described horizon bar 4 one end are connected with the upper end of vertical rod 3 by bolt II 5, and the other end of horizon bar 4 and dial gauge holder 8 are fastenedly connected.Described dial gauge holder 8 outer ends are hinged by jointed shaft and geometric ratio lever 9, and dial gauge holder 8 upper ends are manufactured with pilot hole.Described dial gauge 6 is arranged on dial gauge holder 8 from the side near horizon bar 4 by pilot hole, and the gauge outfit of dial gauge 6 is touched an end in contact of point and geometric ratio lever 9, and dial gauge 6 is fixed on dial gauge holder 8 by trip bolt 7.The other end of described geometric ratio lever 9 is provided with the contact contacting with measured workpiece point.It is characterized in that: the lower end of described vertical rod 3 is connected with magnetic suction disc 1.Described magnetic suction disc 1 is adsorbed on V shape iron 10 one end of place work piece.
Described magnetic suction disc 1 is fastenedly connected by bolt I 2 with vertical rod 3.
Described magnetic suction disc 1 is rectangular parallelepiped or square.
Concrete measuring method: as shown in drawings workpiece is placed in the V-shaped groove of V shape iron 10, shaft key groove level to be measured upward.Magnetic suction disc 1 is adsorbed on to one end of V shape iron 10, adjusts vertical rod 3 and horizon bar 4 to suitable position and with try square calibration according to the size of workpiece, then use bolt II 5 fastening.Adjust measurement mechanism one side of geometric ratio lever 9 contact-carryings is contacted with measured workpiece point, and the tactile point of gauge outfit of dial gauge 6 is contacted with the opposite side of geometric ratio lever 9, then by dial gauge 6 schools zero.When measurement, axle and keyway move axially along V-shaped groove, read the maximal value of dial gauge 6; Then the other end that this measurement mechanism is taken off to Rotate 180 degree magnetic suction disc 1 is adsorbed on V shape iron 10 from V shape iron 10, using method is the same, reads the maximal value of dial gauge 6; Finally measurement numerical value is carried out to suitable conversion and obtain symmetry error value, judge the qualification of axle keyway symmetry.
Claims (3)
1. a device for measuring key slot symmetry degree of shaft, it comprises horizon bar (4), vertical rod (3), dial gauge holder (8), dial gauge (6) and geometric ratio lever (9); Described horizon bar (4) one end is connected with the upper end of vertical rod (3) by bolt II (5), and the other end of horizon bar (4) and dial gauge holder (8) are fastenedly connected; Described dial gauge holder (8) outer end is hinged by jointed shaft and geometric ratio lever (9), and dial gauge holder (8) upper end is manufactured with pilot hole; Described dial gauge (6) is arranged on dial gauge holder (8) from the side near horizon bar (4) by pilot hole, the gauge outfit of dial gauge (6) is touched an end in contact of point and geometric ratio lever (9), and dial gauge (6) is fixed on dial gauge holder (8) by trip bolt (7); The other end of described geometric ratio lever (9) is provided with the contact contacting with measured workpiece point; It is characterized in that: the lower end of described vertical rod (3) is connected with magnetic suction disc (1); Described magnetic suction disc (1) is adsorbed on V shape iron (10) one end of place work piece.
2. according to the device for measuring key slot symmetry degree of shaft described in claims 1, it is characterized in that: described magnetic suction disc (1) is fastenedly connected by bolt I (2) with vertical rod (3).
3. according to the device for measuring key slot symmetry degree of shaft described in claims 1 or 2, it is characterized in that: described magnetic suction disc (1) is rectangular parallelepiped or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320842509.1U CN203642860U (en) | 2013-12-20 | 2013-12-20 | Device for measuring symmetry degree of shaft keyway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320842509.1U CN203642860U (en) | 2013-12-20 | 2013-12-20 | Device for measuring symmetry degree of shaft keyway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203642860U true CN203642860U (en) | 2014-06-11 |
Family
ID=50874096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320842509.1U Expired - Fee Related CN203642860U (en) | 2013-12-20 | 2013-12-20 | Device for measuring symmetry degree of shaft keyway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203642860U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253685A (en) * | 2018-09-26 | 2019-01-22 | 北京北机床股份有限公司 | A kind of main shaft shifting block slot symmetrical measurement device and measurement method |
-
2013
- 2013-12-20 CN CN201320842509.1U patent/CN203642860U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253685A (en) * | 2018-09-26 | 2019-01-22 | 北京北机床股份有限公司 | A kind of main shaft shifting block slot symmetrical measurement device and measurement method |
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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: 20140611 Termination date: 20151220 |
|
| EXPY | Termination of patent right or utility model |