CN202547589U - Precise ball hinge gap measuring instrument - Google Patents
Precise ball hinge gap measuring instrument Download PDFInfo
- Publication number
- CN202547589U CN202547589U CN2012201158894U CN201220115889U CN202547589U CN 202547589 U CN202547589 U CN 202547589U CN 2012201158894 U CN2012201158894 U CN 2012201158894U CN 201220115889 U CN201220115889 U CN 201220115889U CN 202547589 U CN202547589 U CN 202547589U
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- inside casing
- housing
- semiaxis
- spherical hinge
- bearing
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Abstract
The utility model discloses a precise ball hinge gap measuring instrument, which is characterized by comprising a horizontal base platform, a rectangular outer frame, an inverted u-shaped inner frame, a loading cylinder, a changeover panel and an inductance displacement sensor. According to the utility model, the rectangular outer frame and the inverted u-shaped inner frame are mutually and crossways vertical to each other and are rotatable. Based on the movement cooperation of the rectangular outer frame and the inverted u-shaped inner frame, the measurement data of the original space error of the assembly gap of a ball hinge are obtained and then are subjected to the subsequent corresponding data processing to figure out the model and the law of the gap error of the ball hinge. Thus, the gap error of a ball hinge in a three-dimensional space can be measured efficiently, automatically and accurately. Meanwhile, the precise ball hinge gap measuring instrument facilitates the development of the error modeling and the correction technology of parallel mechanisms.
Description
Technical field
The utility model relates to a kind of measurement mechanism, more specifically says so to be used to measure the formed fit-up gap of accurate spherical hinge, universal coupling or hook hinge assembling back, and the club that is used to know spherical hinge is in the space during different pose, the rule that its gap changes.
Background technology
Because parallel institution has good rigidity, light, the natural advantages such as error average effect of movement inertia, recent two decades comes to have obtained using widely in fields such as lathe, robot, micro displacement workbench, coordinate measuring machines.But the kinematic error of parallel institution has seriously restricted application and the popularization of parallel institution in the high precision occasion all the time.The factor that influences the parallel institution error is a lot, mainly comprises parallel institution structural parameters error, error in mounting position, the power in the use, thermal deformation etc.Theory and practice is verified, and in the structural parameters error, the foozle of rod member and the gap error of spherical hinge have the greatest impact to precision.Through kinematics modeling and error calibration; The error in mounting position of rod member foozle and parts can compensate and revise well; But the error that tolerance clearance produced of the accurate spherical hinge that in parallel institution, generally uses is not well solved so far; Also become one of major obstacle that improves parallel institution or parallel machine precision, main cause is:
Though 1, the hinge gap error belongs to the structural parameters error, it is the independent action error, has no idea in separating to express and appear in that parallel institution is positive and negative, thereby can not realize error correction and elimination through the differential modeling of routine;
2, the spherical hinge error is relevant with pose with ball pivot bar work space angle in essence, and relevant with the operating load size and Orientation, demonstrates the characteristics of certain space stochastic error.Therefore if, do not obtain comprehensive experimental data, be difficult to set up its error model through Theoretical Calculation merely not through test;
3, generally all be to use a plurality of accurate spherical hinges simultaneously on parallel institution; Can generation intercouple and error average effect between the verified a plurality of accurate spherical hinge gap error of theory and practice, make the spherical hinge gap error more complicated the kinematic accuracy influence of final topworks.
Therefore; Thoroughly seek the rule of the single spherical hinge gap error of influence; Set up the simple chain random error model; Use error independent action principle to set up the coefficient error model of many hinges on this basis, could disclose the characteristics and the rule of hinge gap error comprehensively, this enriches for the operating accuracy that improves parallel institution and development parallel institution theory has important meaning.
But also there is not its relative special-purpose equipment to can be used in the accurate spherical hinge of accurate measurement, the formed fit-up gap of universal coupling or hook hinge assembling back so far.
Summary of the invention
The utility model is for avoiding above-mentioned existing in prior technology weak point; A kind of accurate spherical hinge clearance meter is provided; To realize efficiently, the automatically and accurately detection of spherical hinge, promote the progress of parallel institution error correcting technology in three dimensions internal clearance error.
The utility model technical solution problem adopts following technical scheme:
The design feature of the accurate spherical hinge clearance meter of the utility model is to be provided with:
One is the base platform of level, on said base platform, fixedly installs chuck clamps, and the ball pivot seat of tested spherical hinge is fixedly installed in the said chuck clamps, and the ball pivot bar of tested spherical hinge is vertical; On said base platform, the symmetria bilateralis that is positioned at said chuck clamps is provided with vertical outer gimbal support;
One rectangle housing; On said rectangle housing; Be in the relative a pair of side frame upper edge X-direction in position and be respectively arranged with the housing semiaxis, be in the relative other a pair of side frame in position and be set to the inner axis bearing respectively, the axis of said inner axis bearing is along the Y direction setting; Said rectangle housing is to be bearing on the said vertical outer gimbal support through the housing bearing by the housing semiaxis; Axial line with said housing semiaxis is the X axle, is the Y axle with the axial line of said inner axis bearing; The axial line of said chuck clamps passes the intersection point O of X axle and Y axle;
One falls " U " shape inside casing, and said two ends of falling " U " shape inside casing are along being respectively arranged with the inside casing semiaxis on the Y direction, and said " U " shape inside casing that falls is to be bearing in the inner axis bearing on the said rectangle housing through the inside casing bearing with the inside casing semiaxis; The said frame top board of " U " shape inside casing is the top that level is positioned at the ball pivot bar of tested spherical hinge;
One adds carrier gas cylinder, is fixedly installed on the said frame top board that falls " U " shape inside casing, and the said piston rod that adds carrier gas cylinder and is on the same straight line with the ball pivot bar of said tested spherical hinge straight down;
One transfer panel is and is horizontally disposed with, and the top of the ball pivot bar of tested spherical hinge and the said bottom that adds the piston rod of carrier gas cylinder are connected to the bottom center and the end face center position of transfer panel;
One inductance displacement sensor is fixedly installed on the said frame top board that falls " U " shape inside casing, is positioned at said one side that adds carrier gas cylinder, and the gauge head of said inductance displacement sensor vertically is butted on the card of said transfer panel.
The design feature of the accurate spherical hinge clearance meter of the utility model also is:
Said housing bearing and inside casing bearing are two angular contact ball bearings of configuration back-to-back.
The design feature of the accurate spherical hinge clearance meter of the utility model also is:
On said a pair of vertical outer gimbal support; Be positioned at the vertical outer gimbal support of a side and be provided with the housing drive motor; Be positioned at the vertical outer gimbal support of opposite side and be provided with housing angular detection circle grating, with the rotation of the housing semiaxis of said housing drive motor drives corresponding position; Detect the rotational angle of rectangle housing with said housing angular detection circle grating with respect to vertical outer gimbal support;
On said rectangle housing; Be positioned on the side frame of a side inside casing semiaxis place inside casing drive motor is set; Be positioned at another inside casing semiaxis place side frame and be provided with Inner Gimbal Angle detection circle grating; With the rotation of the inside casing semiaxis on the said inside casing drive motor drives correspondence position, detect the circle grating with said Inner Gimbal Angle and detect the rotational angle of " U " shape inside casing with respect to the rectangle housing.
Between the output shaft of said housing drive motor and housing semiaxis, housing semiaxis flexible clutch is set; Between the output shaft of said inside casing drive motor and inside casing semiaxis, inside casing semiaxis flexible clutch is set.
Compared with present technology, the utility model beneficial effect is embodied in:
1, the utility model be mutual square crossing configuration, and rotating rectangle housing and the motion of " U " shape inside casing of falling obtain the luv space error measure data of spherical hinge fit-up gap under cooperating, can draw the model and the rule of spherical hinge gap error through follow-up corresponding data processing and computational algorithm.
2, the utility model adopts orthogonal " ten " word framework rotary axis system, has realized rotating at any angle in the ball pivot bar three dimensions.
3, adopt two angular contact ball bearings that dispose back-to-back to be configured on the one-sided semiaxis in the utility model, the structure of duplex bearing combination pretension can improve rigidity and rotating accuracy effectively in this single shaft bearing.
4, realize pushing away, drawing loading through cylinder in the utility model, simple in structure, add compressive load and be easy to control; And it is consistent with the inductance displacement sensor direction to have guaranteed to add compressive load from structure, and measuring error is little.
5, adopt angular detection circle grating in the utility model, cooperate the direct measurement clearance size of displacement transducer, spherical hinge gap error Δ is characterized and is summed up as itself and two space angle (θ
x, θ
y) between the funtcional relationship problem, that is: Δ=f (θ
x, θ
y), this mathematical expression is convenient to follow-up parallel institution modeling and application.
6, the utility model is through being provided with flexible clutch between drive motor and driven housing semiaxis and inside casing semiaxis; Automatically small electromotor axis of rotation and framework axis of rotation is inconsistent, makes the electrical axis rigging error not influence the rotating accuracy of axle system.
7, the utility model can be used for the automatic measurement of the tolerance clearance of various hinges such as universal coupling, hook hinge; Be equipped with suitable frock and anchor clamps; Also can be applicable in the measurement of globe bearing, hole axle idol part and the general axial play of rolling bearing, it detects good reproducibility, precision is high, detection efficiency is high.
Description of drawings
Fig. 1 is the utility model general structure synoptic diagram;
Fig. 2 is the utility model measuring principle synoptic diagram;
Fig. 3 is the utility model master TV structure synoptic diagram;
Fig. 4 is the utility model plan structure synoptic diagram;
Fig. 5 belongs to a side structure synoptic diagram for housing drive motor on the rectangle housing in the utility model;
Fig. 6 is a housing angular detection circle optical grating construction synoptic diagram on the rectangle housing in the utility model;
Fig. 7 is a rectangle housing turn state synoptic diagram in the utility model;
Fig. 8 falls " U " shape inside casing turn state synoptic diagram in the utility model;
Label among the figure: 1 base platform; 2 chuck clamps; 3 ball pivot seats; 4 ball pivot bars; 5 vertical outer gimbal supports; 6 rectangle housings; 7 housing semiaxis; 8 housing bearings; The 8a bearing (ball) cover; The 8b gland nut; 9 fall " U " shape inside casing; 10 inside casing semiaxis; 11 inside casing bearings; 12 add carrier gas cylinder; 13 transfer panels; 14 inductance displacement sensors; The 14a special shaped screw bolt; The 14b abnormity nut; 15 housing drive motor; 16 housing angular detection circle grating; The 16a bearing (ball) cover; 17 inside casing drive motor; 18 Inner Gimbal Angles detect the circle grating; The 18a bearing (ball) cover; 19 housing semiaxis flexible clutchs; 20 inside casing semiaxis flexible clutchs.
Embodiment
The structure of accurate spherical hinge clearance meter is set in the present embodiment:
As shown in figures 1 and 3, on the base platform that is level 1, fixedly install chuck clamps 2, the ball pivot seat 3 of tested spherical hinge is fixedly installed in the chuck clamps 2, and the ball pivot bar 4 of tested spherical hinge is vertical; On base platform 1, the symmetria bilateralis that is positioned at chuck clamps 2 is provided with vertical outer gimbal support 5.
On rectangle housing 6, be in the relative a pair of side frame upper edge X-direction in position and be respectively arranged with housing semiaxis 7, be in the relative other a pair of side frame in position and be set to the inner axis bearing respectively, the axis of inner axis bearing is along the Y direction setting; Rectangle housing 6 is to be bearing on the vertical outer gimbal support 5 through housing bearing 8 by housing semiaxis 7.Axial line with housing semiaxis 7 is the X axle, is the Y axle with the axial line of inner axis bearing; The axial line of chuck clamps 2 passes the intersection point O of X axle and Y axle;
Fall the two ends of " U " shape inside casing 9 along being respectively arranged with inside casing semiaxis 10 on the Y direction, and " U " shape inside casing 9 that falls is to be bearing in the inner axis bearing on the rectangle housing 6 through inside casing bearing 11 with inside casing semiaxis 10; The frame top board of " U " shape inside casing 9 is the top that level is positioned at the ball pivot bar 4 of tested spherical hinge;
Be and be horizontally disposed with transfer panel 13; The top of the ball pivot bar 4 of tested spherical hinge and the bottom that adds the piston rod of carrier gas cylinder 12 are connected to the bottom center and the end face center position of transfer panel 13; Adding carrier gas cylinder 12 connects firmly through the club of transfer panel 13 with tested spherical hinge; Realize to obtain the loading force of nominal amount simultaneously through the adjustment admission pressure, compact conformation through changing the cylinder intake direction to the drawing or pressing of club 4.
In the present embodiment, the corresponding structure setting also comprises:
Like Fig. 4, Fig. 5 and shown in Figure 6, housing bearing 8 is two angular contact ball bearings of configuration back-to-back with inside casing bearing 11.In single semiaxis, adopt two angular contact ball bearings to install back-to-back, single like this semiaxis self can be realized pretension, if adopt conventional single shaft to hold configuration mode, single semiaxis can't pretension, and pretightning force can act on and bring extra distortion on the framework.Adopt the duplex bearing configuration to stop frame deformation, having improved system stiffness is rotating accuracy with axle.8, two angular contact ball bearings of two angular contact ball bearings of configuration are installed in the housing bore of vertical outer gimbal support 5 back-to-back on two semiaxis 7 of rectangle housing 6.After bearing (ball) cover 8a compressed, the outer ring of two angle bearings offseted and its axial location is fixed, and this moment, the inner ring of two bearings did not contact, through rotatably compressing nut 8b preloaded bearing inner ring.The bearing configuration of two inside casing semiaxis 10 on " U " shape inside casing 9 is identical with the configuration of rectangle housing semiaxis 6.
Like Fig. 1, Fig. 4, Fig. 5 and shown in Figure 6; On a pair of vertical outer gimbal support 5; Be positioned at the vertical outer gimbal support of a side and be provided with housing drive motor 15; Be positioned at the vertical outer gimbal support of opposite side and be provided with housing angular detection circular raster sensor 16,, drive rectangle housing 6 pitching revolutions (as shown in Figure 7) with the rotation of the housing semiaxis of housing drive motor 15 driving corresponding positions; Detect rectangle housing 6 rotational angles with housing angular detection circular raster sensor 16 with respect to vertical outer gimbal support 5; The shell of housing angular detection circular raster sensor 16 is installed in the pilot hole shoulder on the bearing (ball) cover 16a with one heart, and the axle sleeve of circle grating hollow is connected on the output terminal of semiaxis 7 and keeps with one heart;
Like Fig. 1, Fig. 3 and shown in Figure 4; On rectangle housing 6; Be positioned on the side frame of a side inside casing semiaxis place inside casing drive motor 17 is set; Be positioned at another inside casing semiaxis place side frame and be provided with Inner Gimbal Angle detection circular raster sensor 18, the rotation with the inside casing semiaxis on the inside casing drive motor 17 driving correspondence positions drives " U " shape inside casing 9 and waves rotation (as shown in Figure 8); Detect circular raster sensor with Inner Gimbal Angle and detect " U " shape inside casing 9 rotational angles with respect to rectangle housing 7; Inner Gimbal Angle detects circular raster sensor 18 shells and is installed in one heart on the bearing (ball) cover 18a, and the axle sleeve of circle grating hollow is connected on the output terminal of inside casing semiaxis 10.
Inner Gimbal Angle detects circular raster sensor and housing angular detection circular raster sensor adopts commercially available standard component, can match according to accuracy requirement, and housing drive motor and inside casing drive motor all adopt stepper motor.
As shown in Figure 4, between the output shaft of housing drive motor 15 and housing semiaxis, housing semiaxis flexible clutch 19 is set; Between the output shaft of inside casing drive motor 17 and inside casing semiaxis, inside casing semiaxis flexible clutch 20 is set.Between its axis and the semiaxis axis biased error is arranged when motor is installed, adopt flexible clutch can remedy the defective that this deviation is brought, guarantee the rotating accuracy that departing from of motor shaft do not influence semiaxis and can reliable delivery move and moment of torsion simultaneously.
Measuring method:
Present embodiment is to form " cross " type rotating frame structures through the rectangle inside casing 6 and " U " type inside casing 9 that falls; Cooperation driving through two stepper motors realizes that ball pivot bar 4 stops on the arbitrary orientation of space with respect to ball seat 3, and by this position angle of angular transducer record.On this orientation, pass through then to load, obtain the gap value of spherical hinge on this orientation by displacement transducer.Its thought is the function that the gap error of spherical hinge on the different azimuth of space is characterized by two angle parameters, is convenient to the spherical hinge error modeling.
Measuring process:
1, the ball pivot seat 3 with tested spherical hinge is clamped in the chuck clamps 2; Ball pivot bar 4 is fixedly connected with transfer panel 13; The piston rod that rectangle housing 6 is level, add carrier gas cylinder 12 is vertically, and the gauge head of inductance sensor 14 is butted on the card of transfer panel 13, and the inductance sensor reading is zero;
2, the 1st pose of setting spherical hinge is that rectangle housing 6 is horizontal by angle theta
X1, " U " shape inside casing 9 that falls is angle theta with perpendicular
Y1, keep spherical hinge at the 1st pose place, add the tested ball pivot bar 4 of carrier gas cylinder 12 downward pushing tows, the on-load pressure that record adds carrier gas cylinder 12 reaches-F
0The time inductance displacement sensor 14 the reading first time; Add carrier gas cylinder 12 toggle 4 of upwards lifting subsequently, the on-load pressure that record adds carrier gas cylinder 12 reaches+F
0The time inductance sensor 14 the reading second time, the gap of spherical hinge under the 1st pose is for the first time the reading and the difference DELTA of reading for the second time
11, with array (Δ
11, θ
X1, θ
Y1) characterize the corresponding relation in spherical hinge pose and gap;
3, keep rectangle housing 6 horizontal by angle theta
X1Rotating " U " shape inside casing 9 makes itself and perpendicular be angle theta respectively
Y2... θ
Yn, obtain array (Δ according to the identical mode of step 2
12, θ
X1, θ
Y2) ... (Δ
1n, θ
X1, θ
Yn);
4, rotating rectangle housing 5 makes itself and surface level be angle theta respectively
X2... θ
Xn, 3 identical modes obtain array set by step:
(Δ
21，θ
x2，θ
y1)、(Δ
22，θ
x2，θ
y2)...(Δ
2n，θ
x2，θ
yn)；
(Δ
31，θ
x3，θ
y1)、(Δ
32，θ
x3，θ
y2)...(Δ
3n，θ
x3，θ
yn)；
(Δ
n1，θ
xn，θ
y1)、(Δ
n2，θ
xn，θ
y2)...(Δ
nn，θ
xn，θ
yn)；
θ wherein
X1-θ
XnRotatable scope for the rectangle housing; θ
Y1-θ
YnFor falling the rotatable scope of " U " shape inside casing.
In above measuring process; Stepper motor as housing drive motor and inside casing drive motor is to drive with the step pitch of setting; Such as step pitch is set is 5 °; Utilize the mechanical interlocking function of reducing gear in the stepper motor, make the rectangle housing and fall the angle position that " U " shape inside casing turns over and can be maintained, so as to add carrier gas cylinder 12 can the rectangle housing with fall " U " shape inside casing and load under remaining static.
More than accomplishing, after the test, utilize computing machine measured data to be carried out the analysis and the theoretical modeling of gap error.
Claims (4)
1. accurate spherical hinge clearance meter is characterized in that being provided with:
One is the base platform (1) of level, on said base platform (1), fixedly installs chuck clamps (2), and the ball pivot seat (3) of tested spherical hinge is fixedly installed in the said chuck clamps (2), and the ball pivot bar (4) of tested spherical hinge is vertical; The symmetria bilateralis that goes up, is positioned at said chuck clamps (2) at said base platform (1) is provided with vertical outer gimbal support (5);
One rectangle housing (6); On said rectangle housing (6); Be in the relative a pair of side frame upper edge X-direction in position and be respectively arranged with housing semiaxis (7), be in the relative other a pair of side frame in position and be set to the inner axis bearing respectively, the axis of said inner axis bearing is along the Y direction setting; Said rectangle housing (6) is to be bearing on the said vertical outer gimbal support (5) through housing bearing (8) by housing semiaxis (7); Axial line with said housing semiaxis (7) is the X axle, is the Y axle with the axial line of said inner axis bearing; The axial line of said chuck clamps (2) passes the intersection point O of X axle and Y axle;
One falls " U " shape inside casing (9); Said two ends of falling " U " shape inside casing (9) are along being respectively arranged with inside casing semiaxis (10) on the Y direction, said " U " shape inside casing (9) that falls is to be bearing in the inner axis bearing on the said rectangle housing (6) through inside casing bearing (11) with inside casing semiaxis (10); The said frame top board of " U " shape inside casing (9) is the top that level is positioned at the ball pivot bar (4) of tested spherical hinge;
One adds carrier gas cylinder (12), is fixedly installed on the said frame top board that falls " U " shape inside casing (9), and the said piston rod that adds carrier gas cylinder (12) and is on the same straight line with the ball pivot bar (4) of said tested spherical hinge straight down;
One transfer panel (13) is and is horizontally disposed with, and the top of the ball pivot bar (4) of tested spherical hinge and the said bottom that adds the piston rod of carrier gas cylinder (12) are connected to the bottom center and the end face center position of transfer panel (13);
One inductance displacement sensor (14) is fixedly installed on the said frame top board that falls " U " shape inside casing (9), is positioned at said one side that adds carrier gas cylinder (12), and the gauge head of said inductance displacement sensor (14) vertically is butted on the card of said transfer panel (13).
2. accurate spherical hinge clearance meter according to claim 1 is characterized in that: said housing bearing (8) and inside casing bearing (11) are two angular contact ball bearings of configuration back-to-back.
3. accurate spherical hinge clearance meter according to claim 1 is characterized in that:
On said a pair of vertical outer gimbal support (5); Be positioned at the vertical outer gimbal support of a side and be provided with housing drive motor (15); Be positioned at the vertical outer gimbal support of opposite side and be provided with housing angular detection circle grating (16), drive the rotation of the housing semiaxis of corresponding position with said housing drive motor (15); Detect the rotational angle of rectangle housing (6) with said housing angular detection circle grating (16) with respect to vertical outer gimbal support (5);
On said rectangle housing (6); Be positioned on the side frame of a side inside casing semiaxis place inside casing drive motor (17) is set; Be positioned at another inside casing semiaxis place side frame and be provided with Inner Gimbal Angle detection circle grating (18); With the rotation of the inside casing semiaxis on said inside casing drive motor (17) the driving correspondence position, detect circle grating (18) with said Inner Gimbal Angle and detect the rotational angle of " U " shape inside casing (9) with respect to rectangle housing (6).
4. accurate spherical hinge clearance meter according to claim 3 is characterized in that: between the output shaft of said housing drive motor (15) and housing semiaxis, housing semiaxis flexible clutch (19) is set; Between the output shaft of said inside casing drive motor (17) and inside casing semiaxis, inside casing semiaxis flexible clutch (20) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201158894U CN202547589U (en) | 2012-03-23 | 2012-03-23 | Precise ball hinge gap measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201158894U CN202547589U (en) | 2012-03-23 | 2012-03-23 | Precise ball hinge gap measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202547589U true CN202547589U (en) | 2012-11-21 |
Family
ID=47168207
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201158894U Withdrawn - After Issue CN202547589U (en) | 2012-03-23 | 2012-03-23 | Precise ball hinge gap measuring instrument |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607400A (en) * | 2012-03-23 | 2012-07-25 | 合肥工业大学 | Precision spherical hinge clearance-measuring instrument and measurement method |
| CN103527620A (en) * | 2013-10-23 | 2014-01-22 | 合肥工业大学 | Spherical hinge capable of realizing rotation angle measurement and measurement method of rotation angle |
| CN106524944A (en) * | 2015-09-10 | 2017-03-22 | 河北太行计量检测有限公司 | Non-coaxial circular grating angle measurement device and angle measurement method |
| CN111922782A (en) * | 2020-07-06 | 2020-11-13 | 杭州电子科技大学 | Method for detecting machine tool space error by using ball bar instrument constructed by ball hinge |
| CN112392858A (en) * | 2020-11-02 | 2021-02-23 | 天津津航技术物理研究所 | Assembling and adjusting method for inhibiting inclination angle rotation error of two-end support shafting structure |
| CN113295087A (en) * | 2021-05-26 | 2021-08-24 | 合肥工业大学 | Spherical hinge three-axis rotation angle measuring method based on spherical three-dimensional coding |
-
2012
- 2012-03-23 CN CN2012201158894U patent/CN202547589U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607400A (en) * | 2012-03-23 | 2012-07-25 | 合肥工业大学 | Precision spherical hinge clearance-measuring instrument and measurement method |
| CN102607400B (en) * | 2012-03-23 | 2013-11-27 | 合肥工业大学 | Precision spherical hinge clearance-measuring instrument and measurement method |
| CN103527620A (en) * | 2013-10-23 | 2014-01-22 | 合肥工业大学 | Spherical hinge capable of realizing rotation angle measurement and measurement method of rotation angle |
| CN103527620B (en) * | 2013-10-23 | 2015-09-16 | 合肥工业大学 | Spherical hinge and the method for measurement of angle of revolution measurement can be realized |
| CN106524944A (en) * | 2015-09-10 | 2017-03-22 | 河北太行计量检测有限公司 | Non-coaxial circular grating angle measurement device and angle measurement method |
| CN111922782A (en) * | 2020-07-06 | 2020-11-13 | 杭州电子科技大学 | Method for detecting machine tool space error by using ball bar instrument constructed by ball hinge |
| CN112392858A (en) * | 2020-11-02 | 2021-02-23 | 天津津航技术物理研究所 | Assembling and adjusting method for inhibiting inclination angle rotation error of two-end support shafting structure |
| CN113295087A (en) * | 2021-05-26 | 2021-08-24 | 合肥工业大学 | Spherical hinge three-axis rotation angle measuring method based on spherical three-dimensional coding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121121 Effective date of abandoning: 20131127 |
|
| RGAV | Abandon patent right to avoid regrant |