CN203908535U - Cam shaft keyway angle measuring device - Google Patents
Cam shaft keyway angle measuring device Download PDFInfo
- Publication number
- CN203908535U CN203908535U CN201420312098.XU CN201420312098U CN203908535U CN 203908535 U CN203908535 U CN 203908535U CN 201420312098 U CN201420312098 U CN 201420312098U CN 203908535 U CN203908535 U CN 203908535U
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- bearing
- rotating disc
- pin
- mount pad
- spring
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a cam shaft keyway angle measuring device. The device utilizes an axis reference of a cam shaft formed by two tips. A first reference positioning block of a positioning support is contacted with a blank positioning surface of the cam shaft, so that the blank positioning surface is determined. Then, a measuring pin points the center of the tips and rotates around the tip axis. When the positioning pin rotates to a second reference positioning block, the measuring pin is exactly vertical to a contact surface between a reference positioning block B of the positioning support and the blank positioning surface of the cam shaft, so that the measuring reference B is achieved. The building of the reference surface C is relied on conical surface contact between the measuring pin and the keyway opening, the conical surface passes through the tip axis and rotates around the axis, and enters the keyway to obtain the measuring reference surface C. The angle measured by the keyway is the angle the reference surface C rotates relative to the reference surface B.
Description
Technical field
The utility model belongs to component test measurement mechanism technical field, is specifically related to a kind of device that detects Camshaft Key Seat angle.
Background technology
The angle of part has the angle in conplane line and line, line and face, face and face, and the equal angles such as space angle in diverse location and space, measure and get up also to have a variety of methods, such as surveying instruments such as three coordinate measuring machine, projector, bevel protractors, if but for the angle in space such as the keyway angle of camshaft is not by the instrument that can set up coordinate system, be difficult to measure.As shown in Figure 1 to Figure 3, the angle of this keyway require be the center of keyway cross C reference field that camshaft axle center forms with perpendicular to blank locating surface and cross the angle that the reference field B in camshaft axle center forms, yet the requirement of the angle [alpha] of admission cam shaft and the angle beta of exhaust cam shaft is different.And these two angles are all complicated space angles, if adopt three-dimensional coordinates measurement, need to set up different benchmark, to measure time-consumingly, efficiency is low.And when setting up reference field B, owing to being blank locating surface, it is large that three-dimensional coordinates measurement is adopted a time error, often causes measuring repeatability bad, width of keyway is very narrow in addition, and about 4mm is wide, and gauge head is difficult for entering.If adopt projector to measure,, due to the characteristic of light transmition, the projection ray of part is blocked, and cannot projection go out parts profile.Adopt additive method,, due to the restriction in space, cannot measure.So want complete, convenient, to measure this size be accurately very difficult.
Utility model content
For the deficiency in background technology, the purpose of this utility model be to provide a kind of simple in structure, easy to operate, measure Camshaft Key Seat angle measurement unit accurately.
For achieving the above object, the technical solution adopted in the utility model is: Camshaft Key Seat angle measurement unit, is characterized in that: comprise measuring table, described measuring table two ends are provided with the first bearing and the second bearing; It is first top that described the first bearing is provided with, and it is second top that described the second bearing is provided with, described first top and second top coaxial; On described measuring table, be also provided with mount pad, described mount pad is between described the first bearing and the second bearing, described mount pad is provided with telescopic expansion link, and described expansion link one end is passed the bottom surface of described measuring table and is provided with limiting plate, and the other end is provided with the first benchmark limited block; Described the first bearing is provided with rotating disc near the side of the second bearing, described rotating disc be set in described first top on; Described rotating disc below is provided with the second spacing reference block; Described rotating disc outer wall is provided with register pin radially, is provided with telescopic measurement pin between described rotating disc and described expansion link, and described measurement pin is connected with described rotating disc sidewall by pin mount; The axis of described measurement pin is positioned at same plane and parallel with the axis of described register pin; Between described rotating disc and described the first bearing, be provided with angular encoder, described angular encoder is connected with described rotating disc sidewall.
Preferably, the second bearing is provided with handle mount pad away from the side of described the first bearing, and described handle mount pad is connected with handle, and described handle and described second is provided with the first spring between top.
Preferably, between described expansion link and described the second bearing, be at least provided with two back-up blocks, described back-up block top is provided with V-type groove.
Preferably, be arranged with the second spring on described expansion link, described the second spring is between described mount pad and the first benchmark limited block.
Preferably, described measurement pin is multidiameter shape, is arranged with the 3rd spring on described measurement pin, and described the 3rd spring is positioned at described pin mount.
Preferably, described rotating disc is provided with swingle.Like this, be convenient to rotate rotating disc.
The beneficial effects of the utility model are: by top and two spacing origin reference location pieces, realized the foundation of parts measurement benchmark, then by the rotation of angular encoder, measure in real time acquisition angles value, by measurement simplification, visualize, the accuracy of complicated space angle, avoid producing the bad problem of repeatability.And the utility model possesses certain flexibility, can measure the camshaft of different model.
Accompanying drawing explanation
Fig. 1 is the structural representation of camshaft
Fig. 2 is the sectional view of admission cam shaft
Fig. 3 is the sectional view of exhaust cam shaft
Fig. 4 is main TV structure schematic diagram of the present utility model
Fig. 5 is plan structure schematic diagram of the present utility model
Fig. 6 is the principle schematic that the utility model is measured admission cam shaft
Embodiment
As shown in Figure 1 to Figure 3, be the schematic diagram of two kinds of keyway angles, in background technology, set forth, be not repeated herein.
As shown in Figure 4 and Figure 5, the Camshaft Key Seat angle measurement unit for the utility model designs, comprises measuring table 1, and described measuring table 1 two ends are provided with the first bearing 2 and the second bearing 3; It is first top 4 that described the first bearing 2 is provided with, and described the second bearing 3 is provided with second top 5, described first top 4 with second top 5 coaxial; On described measuring table 1, be also provided with mount pad 6, described mount pad 6 is between described the first bearing 2 and the second bearing 3, described mount pad 6 is provided with telescopic expansion link 7, described expansion link 7 one end are passed the bottom surface of described measuring table 1 and are provided with limiting plate 8, and the other end is provided with the first benchmark limited block 9; Described the first bearing 2 is provided with rotating disc 10 near the side of the second bearing 3, and described rotating disc 10 is set on described first top 5; Described rotating disc 10 belows are provided with the second spacing reference block 11; Described rotating disc 10 outer walls are provided with register pin 12 radially, are provided with telescopic measurement pin 13 between described rotating disc 10 and described expansion link 7, and described measurement pin 13 is connected with described rotating disc 10 sidewalls by pin mount 14; The axis of described measurement pin 13 is positioned at same plane and parallel with the axis of described register pin 12; Between described rotating disc 10 and described the first bearing 2, be provided with angular encoder 15, described angular encoder 15 is connected with described rotating disc 10 sidewalls.Preferably, the second bearing 3 is provided with handle mount pad 16 away from the side of described the first bearing, and described handle mount pad 16 is connected with handle 17, between described handle 17 and described second top 3, is provided with the first spring 18.Preferably, between described expansion link 7 and described the second bearing 2, be at least provided with two back-up blocks 19, described back-up block 19 tops are provided with V-type groove.Preferably, be arranged with the second spring 20 on described expansion link 7, described the second spring 20 is between described mount pad 6 and the first benchmark limited block 9.Preferably, described measurement pin 13 is multidiameter shape, is arranged with the 3rd spring 21 on described measurement pin 13, and described the 3rd spring 21 is positioned at described pin mount 14.Preferably, described rotating disc 10 is provided with swingle 22.
Certainly, the utility model can also be equipped with electronic box, 15 electrical connections of described electronic box and angular encoder, and by the electronic box measured angular of angles of display scrambler 15 in real time, other function of electronic box is explained in using method of the present utility model again.
As shown in Figures 4 to 6, using method of the present utility model:
First, camshaft is placed on back-up block 19, then by rotary handle 17, camshaft is stepped up between first top 4 and second top 5, now camshaft and back-up block 19 depart from, and the first benchmark limited block 9 contacts with blank locating surface all the time under the effect of expansion link 7 and the second spring 20, by the first benchmark limited block 9, coordinate blank locating surface that camshaft is spacing;
Then, by swingle 22 rotation rotating discs 10, and then rotated register pin 12 and measured pin 13, and register pin 12 is contacted with the second benchmark limited block 11, now, by the measured value zero clearing of electronic box;
Finally, rotation rotating disc 10, very required measured value when measuring pin 13 insert keyway under the effect of the 3rd spring 21.
Take admission cam shaft as example, measuring principle of the present utility model is: the axial line benchmark that utilizes the camshaft of two top foundation, the blank locating surface of the first origin reference location piece contact camshaft of locating support, the locating surface of blank is decided, then by measurement, sell and point to top center and rotate around top axis, when register pin forwards the second origin reference location piece to, measure the face that pin just in time contacts with cam shaft blank locating surface perpendicular to the origin reference location piece B of locating support, thereby obtain measuring basis B.The foundation of measurement datum C is to rely on to measure to sell to contact by the conical surface with the opening of keyway, and by top axis and around its rotation, so just obtained measurement datum C when it enters keyway.The angle that reference field C turns over respect to reference field B is exactly the angle that keyway need to be measured.
Claims (6)
1. Camshaft Key Seat angle measurement unit, is characterized in that: comprise measuring table, described measuring table two ends are provided with the first bearing and the second bearing; It is first top that described the first bearing is provided with, and it is second top that described the second bearing is provided with, described first top and second top coaxial; On described measuring table, be also provided with mount pad, described mount pad is between described the first bearing and the second bearing, described mount pad is provided with telescopic expansion link, and described expansion link one end is passed the bottom surface of described measuring table and is provided with limiting plate, and the other end is provided with the first benchmark limited block; Described the first bearing is provided with rotating disc near the side of the second bearing, described rotating disc be set in described first top on; Described rotating disc below is provided with the second spacing reference block; Described rotating disc outer wall is provided with register pin radially, is provided with telescopic measurement pin between described rotating disc and described expansion link, and described measurement pin is connected with described rotating disc sidewall by pin mount; The axis of described measurement pin is positioned at same plane and parallel with the axis of described register pin; Between described rotating disc and described the first bearing, be provided with angular encoder, described angular encoder is connected with described rotating disc sidewall.
2. Camshaft Key Seat angle measurement unit according to claim 1, it is characterized in that: the second bearing is provided with handle mount pad away from the side of described the first bearing, described handle mount pad is connected with handle, and described handle and described second is provided with the first spring between top.
3. Camshaft Key Seat angle measurement unit according to claim 1, is characterized in that: between described expansion link and described the second bearing, be at least provided with two back-up blocks, described back-up block top is provided with V-type groove.
4. Camshaft Key Seat angle measurement unit according to claim 1, is characterized in that: on described expansion link, be arranged with the second spring, described the second spring is between described mount pad and the first benchmark limited block.
5. Camshaft Key Seat angle measurement unit according to claim 1, is characterized in that: described measurement pin is multidiameter shape, is arranged with the 3rd spring on described measurement pin, and described the 3rd spring is positioned at described pin mount.
6. Camshaft Key Seat angle measurement unit according to claim 1, is characterized in that: described rotating disc is provided with swingle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420312098.XU CN203908535U (en) | 2014-06-12 | 2014-06-12 | Cam shaft keyway angle measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420312098.XU CN203908535U (en) | 2014-06-12 | 2014-06-12 | Cam shaft keyway angle measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203908535U true CN203908535U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420312098.XU Expired - Fee Related CN203908535U (en) | 2014-06-12 | 2014-06-12 | Cam shaft keyway angle measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203908535U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258619A (en) * | 2015-11-13 | 2016-01-20 | 重庆市银钢一通科技有限公司 | Phase angle detection tool |
| CN106643569A (en) * | 2016-12-27 | 2017-05-10 | 湖南南方宇航工业有限公司 | Method for measuring angle of spiral groove of output shaft |
| CN112033312A (en) * | 2020-09-02 | 2020-12-04 | 重庆聚嘉机械有限公司 | Auxiliary device for positioning motor shaft key groove |
| CN114858036A (en) * | 2021-02-03 | 2022-08-05 | 江西同欣机械制造股份有限公司 | Camshaft semi-manufactured goods phase angle detects anchor clamps |
-
2014
- 2014-06-12 CN CN201420312098.XU patent/CN203908535U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258619A (en) * | 2015-11-13 | 2016-01-20 | 重庆市银钢一通科技有限公司 | Phase angle detection tool |
| CN105258619B (en) * | 2015-11-13 | 2018-12-14 | 重庆市银钢一通科技有限公司 | Phase angle detection instrument |
| CN106643569A (en) * | 2016-12-27 | 2017-05-10 | 湖南南方宇航工业有限公司 | Method for measuring angle of spiral groove of output shaft |
| CN106643569B (en) * | 2016-12-27 | 2019-02-22 | 中国航发湖南南方宇航工业有限公司 | A kind of angle measurement method of output shaft helicla flute |
| CN112033312A (en) * | 2020-09-02 | 2020-12-04 | 重庆聚嘉机械有限公司 | Auxiliary device for positioning motor shaft key groove |
| CN114858036A (en) * | 2021-02-03 | 2022-08-05 | 江西同欣机械制造股份有限公司 | Camshaft semi-manufactured goods phase angle detects anchor clamps |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20200612 |