CN108534718A - A kind of axis parallel degree detection device of eccentric shaft - Google Patents
A kind of axis parallel degree detection device of eccentric shaft Download PDFInfo
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- CN108534718A CN108534718A CN201810715879.6A CN201810715879A CN108534718A CN 108534718 A CN108534718 A CN 108534718A CN 201810715879 A CN201810715879 A CN 201810715879A CN 108534718 A CN108534718 A CN 108534718A
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- eccentric shaft
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/18—Measuring arrangements characterised by the use of fluids for measuring angles or tapers; for testing the alignment of axes
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Abstract
The invention discloses a kind of axis parallel degree detection devices of eccentric shaft, including detection platform, main shaft position-limit mechanism and testing agency；Main shaft position-limit mechanism includes two vee-blocks for being set to detection platform upper surface；Testing agency includes the big rocking arm and small rocker of rotation setting, and small rocker is set to the surface of big rocking arm, and big rocking arm upper surface and small rocker lower face are provided with gap；Setting first supports sword on big rocking arm upper surface, and the second support sword is provided on small rocker upper surface；When the main-shaft axis of eccentric shaft is parallel with off-axis axis, when along eccentric shaft main-shaft axis eccentric rotation axis, the relatively large rocking arm remains stationary of small rocker；When the main-shaft axis of eccentric shaft and not parallel off-axis axis, when along eccentric shaft main-shaft axis eccentric rotation axis, the relatively large rocking arm of small rocker rotates upwardly and downwardly, and passes through the distance change in gap between the big rocking arm of stadia surveying and small rocker, the axis parallel degree of eccentric shaft is detected, accuracy of detection greatly promotes.
Description
Technical field
The present invention relates to detection technique field more particularly to a kind of axis parallel degree detection devices of eccentric shaft.
Background technology
With a large amount of exploitations of automobile, general gasoline and diesel engine, motorcycle and parts of refrigeration compressor, needed for
Bent axle, crank combination etc. have the detection project of eccentric axis class greatly to increase, and wherein difficult point is the main shaft to eccentric shaft and position
The detection of the off-axis two axial lines depth of parallelism at spindle eccentricity.Because there are one with spindle axis for the off-axis axle center of surveyed eccentric shaft
Eccentricity, not on same axis of rotation, when main shaft is rotated along axis, off-axis axis rotary oscillation, so carrying out eccentric shaft
Axis parallel degree detection when, off-axis axis location sampling difficulty.
In existing detection device, the range sensor of two super large ranges of generally use or the mechanical measurement for ranging
Table follows the track of eccentric shaft rotary oscillation to be detected.Since the sensor of super large range or mechanical scale are processed by itself
Precision restricts, and desirable is not achieved in precision.Using super large range range sensor or mechanical measurement table measurement accuracy compared with
Low, measurement accuracy is generally not above 0.05mm.
In existing detection device, also grating distance measuring sensor is used to measure, but there is sensor measurements for this way
Frequency response is slow, and high-precision grating cost is high, and detection speed is slow, the unfavorable factors such as more demanding to measuring environment.
In conclusion being detected to the axis parallel degree containing eccentric axis class, demand one kind is easy to use, measures speed
Spend fast, measurement accuracy higher measuring instrument low to environmental requirement.
Invention content
The object of the present invention is to provide a kind of axis parallel degree detection devices of eccentric shaft, can detect the main shaft of eccentric shaft
With the axis parallel degree of off-axis, accuracy of detection is high, easy to operate.
The technical solution adopted by the present invention is：
A kind of axis parallel degree detection device of eccentric shaft, including detection platform, main shaft position-limit mechanism and testing agency；Described
Main shaft position-limit mechanism includes two vee-blocks for being used to support main shaft；Two vee-blocks are along left and right to being set to detection platform
Upper surface；
The testing agency includes the first mounting bracket and big rocking arm, the second mounting bracket and small rocker and rangefinder, rangefinder
In be provided with range sensor；First mounting bracket is fixedly installed on detection platform upper surface, big rocking arm and the first installation
Frame is rotatablely connected, and big rocking arm edge is front and back to setting, and positioned at the right side of main shaft position-limit mechanism, the small rocker is before
It is set to the surface of big rocking arm backward, the second mounting bracket is fixedly connected with big rocking arm, and small rocker and the rotation of the second mounting bracket connect
It connects；Big rocking arm upper surface and small rocker lower face are provided with gap；It is provided with and is used to support partially on the big rocking arm upper surface
The first of axis supports sword, and the first support sword is corresponded on the small rocker upper surface and is provided with the second support sword；Described shakes greatly
Top-down ranging through-hole is provided on arm, the rangefinder is fixedly installed on the lower face of big rocking arm, and in rangefinder
Range sensor be located at ranging through hole；
When the main-shaft axis of eccentric shaft is parallel with off-axis axis, when along eccentric shaft main-shaft axis eccentric rotation axis, small rocker phase
To big rocking arm remains stationary；It is inclined along the rotation of eccentric shaft main-shaft axis when the main-shaft axis of eccentric shaft and not parallel off-axis axis
When mandrel, the relatively large rocking arm of small rocker rotates upwardly and downwardly.
The testing agency further includes big rocking arm resetting spring and small rocker resetting spring, and the big rocking arm resets bullet
Spring one end is fixedly connected with big rocking arm lower face, and the big rocking arm resetting spring other end is fixedly connected with detection platform；The small rocker
Resetting spring one end is fixedly connected with small rocker lower face, and the other end is fixedly connected with big rocking arm.
The axis parallel degree detection device of the eccentric shaft further includes off-axis limiting device, the off-axis limiting device
It is fixedly installed on the right side of big rocking arm；The off-axis limiting device includes the off-axis limited block and use of corresponding second cutting edge setting
In the fixed plate of fixed off-axis limited block, the off-axis limited block is fixedly connected by fixed plate with detection platform.
The axis parallel degree detection device of the eccentric shaft further includes being limited for limiting the big rocking arm of big rocking arm angular displacement
Position device, the big rocking arm limiting device include that the limited post that is fixedly installed on big rocking arm side wall is corresponding with to limiting plate
Big rocking arm limiting plate, the big rocking arm are fixedly installed on detection platform upper surface, and the big rocking arm limiting plate be provided with
The matched limit hole of limited post, the limit hole are long lumbar hole.
The axis parallel degree detection device of the eccentric shaft further includes covering at big rocking arm turning end and small rocker rotation
The protecting crust at end.
Big rocking arm upper surface is corresponded in the protecting crust is provided with anticollison block.
Range sensor in the rangefinder is pneumatic transmitter.
It is pneumoelectric type electron beam micrometer in the rangefinder.
The pneumoelectric type electron beam micrometer includes pneumatic transmitter, air source, air filter, air valve, voltage-stablizer, gas
Electric transducer, linear amplifier circuit, analog/digital conversion module, processor, touch display screen and pin-saving chip；The gas
Source passes sequentially through the gas access of air filter, air valve, voltage-stablizer connection pneumatic transmitter, the gas vent of pneumatic transmitter
It is sequentially connected pneumatic-to-current converter, the signal output end of pneumatic-to-current converter connects analog/digital conversion module by linear amplifier circuit
Input terminal, the signal input part of the output end connection processing device of analog/digital conversion module, the processor and touch display screen phase
Connection, processor are connected with pin-saving chip.
The pneumoelectric type electron beam micrometer further includes qualified indicator light, unqualified indicator light and severe deviations indicator light
And indicating lamp control circuit, the indicator light control terminal of processor connect qualified indicator light, unqualified by indicating lamp control circuit
Indicator light and severe deviations indicator light.
The main shaft of eccentric shaft is stuck in vee-block by the present invention, and be arranged first support sword and first support sword cutting edge with
The first circumference of off-axis is tangent, and the cutting edge and the second circumference of off-axis of the second support sword and the second support sword are tangent, eccentric rotation axis, on
The big rocking arm of lower rotation ensures that the first circumference of off-axis is rolled along the cutting edge of the first support sword, and the small rocker rotated upwardly and downwardly then ensures partially
The second circumference of axis is rolled along the cutting edge of the second support sword；The position of big rocking arm and small rocker is adjusted using standard component so that eccentric
Axis main-shaft axis is parallel with off-axis axis to make the cutting edge of the first support sword and the cutting edge of the second support sword be mutually parallel, and relative to
Main-shaft axis is vertical；When the main-shaft axis of eccentric shaft to be detected and not parallel off-axis axis, the second circumference of off-axis is along second
The relatively large rocking arm of small rocker in the cutting edge rolling process of sword is supported to rotate upwardly and downwardly, between big rocking arm upper surface and small rocker lower face
Spacing change, to the angle that will be difficult to monitor between eccentric shaft off-axis axis and main-shaft axis, be converted to and angle
The length of corresponding opposite side, whether the length by detecting opposite side is zero, whether detects eccentric shaft off-axis axis and main-shaft axis
It is parallel, follow eccentric shaft rotary oscillation relative to the range sensor of two super large ranges or the mechanical measurement table for ranging
Track is detected, and measurement accuracy is greatly promoted up to 0.0005mm, measurement accuracy, and easy to operate, quick.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the schematic top plan view of the present invention；
Fig. 3 is the sectional view along A-A of Fig. 2；
Fig. 4 is the measuring state figure of eccentric shaft standard component；
Fig. 5 is the measuring state figure of eccentric shaft non-standard component
Fig. 6 is the pneumoelectric type electron beam micrometer functional block diagram of the present invention；
Fig. 7 is the protecting crust structural schematic diagram of the present invention.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right" " left and right to ",
The orientation or positional relationship of instructions such as " front and back to " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing
The present invention and simplified description, do not indicate or imply the indicated device or element must have a particular orientation, with specific
Azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for describing
Purpose is not understood to indicate or imply relative importance.
As shown in Figure 1,2 and 3, the present invention includes detection platform 1, main shaft 3-1 position-limit mechanisms and testing agency；The master
Axis 3-1 position-limit mechanisms include two vee-blocks 2 for being used to support main shaft 3-1；Two vee-blocks 2 along left and right to be set to inspection
Survey 1 upper surface of platform；Two ends of the main shaft 3-1 of eccentric shaft 3 are respectively placed in the V-groove of two vee-blocks 2, and main shaft
3-1 is contacted with the V-shaped positioning surface of vee-block 2.
The testing agency includes the first mounting bracket 4 and big Rocker arm 5, the second mounting bracket 6 and small rocker 7 and rangefinder
8；The big Rocker arm 5 edge is front and back to setting, and positioned at the right side of main shaft 3-1 position-limit mechanisms；First mounting bracket 4 is fixed
Be set to 1 upper surface of detection platform, be provided in the first mounting bracket 4 first rotating shaft 4-1 and with first rotating shaft 4-1 matched first
The rear end of bearing 4-2, big Rocker arm 5 are rotatablely connected by first rotating shaft 4-1 and the first mounting bracket 4, and big Rocker arm 5 turns along the vertical direction
It is dynamic；The small rocker 7 is set to the surface of big Rocker arm 5 along the longitudinal direction, and second mounting bracket 6 is to be set to small shake
Two clamping plates of 7 left and right side of arm, described is fixedly installed on big Rocker arm 5, between two clamping plates in be provided with second turn
Axis 6-1 is respectively arranged with the second matched second bearings of shaft 6-1 on two clamping plates, and the rear end of small rocker 7 passes through the second shaft
The cooperation of 6-1 and second bearing is rotatablely connected with the second mounting bracket 6.Between big Rocker arm 5 upper surface and 7 lower face of small rocker are provided with
Gap.
Big Rocker arm 5 bearing accuracy is not less than 0.0002mm, and high-precision bearing has been unable to reach requirement, using the top mortar of self-control
Socket sliding bearing, it is top fully to coordinate grinding, interference to pre-tighten with mortar nest.
7 bearing rotating accuracy of small rocker is not less than 0.0002mm, using self-control 1:3000 taper hole axis of cone formula sliding bearings are small
Excessively cooperation assembly, the small range sliding up and down in the gap of big Rocker arm 5 and clamping plate of small rocker 7.
First support sword 9 and second supports the straightness of sword 10 and the depth of parallelism for assembling zero-bit no more than 0.0001mm, adopts
It is realized with the method for whole smooth grinding adjustment after big Rocker arm 5 and the assembly in groups of small rocker 7.
It is provided with the first support sword 9 for being used to support off-axis 3-2 on the big Rocker arm 5 front end upper surface, sets off-axis
The upper circumference with where the first support 9 contact point of sword of 3-2 is the first circumference of off-axis, the cutting edge and off-axis first of the first support sword 9
Circumference is tangent, and corresponding first support sword 9 is provided with the second support sword 10 on the upper surface of 7 front end of small rocker, second
Cutting edge and the second circumference of off-axis for supportting sword 10 are tangent, set on off-axis 3-2 and second support circumference where 10 contact point of sword as
The second circumference of off-axis 3-2；Top-down ranging through-hole, the rangefinder 8 fixed setting are provided on the big Rocker arm 5
In the lower face of big Rocker arm 5, rangefinder 8 includes range sensor, and the range sensor in rangefinder 8 is set to ranging through-hole
Place；The distance between rangefinder 8 and 7 lower face of small rocker.
It is inclined along the rotation of 3 main shaft 3-1 axis of eccentric shaft when the main shaft 3-1 axis of eccentric shaft 3 are parallel with off-axis 3-2 axis
When mandrel 3,7 relatively large Rocker arm 5 remains stationary of small rocker；When the main shaft 3-1 axis and off-axis 3-2 axis of eccentric shaft 3 are not parallel
When, when along 3 main shaft 3-1 axis eccentric rotation axis 3 of eccentric shaft, 7 relatively large Rocker arm 5 of small rocker rotates upwardly and downwardly.
As shown in Figure 4 and Figure 5, operation principle of the invention and the course of work are as follows：
The present invention is based on comparative measurement methods, are detected only for the depth of parallelism of single model eccentric shaft 3.
First, zero setting is carried out to the present invention：The standard component of eccentric shaft 3 is positioned over to the axis of the eccentric shaft 3
On parallelism detecting device, the main shaft 3-1 of eccentric shaft 3 is positioned on two vee-blocks 2, and the side wall of off-axis 3-2 contacts first respectively
Sword 9 and second is supported to support sword 10；Between the first circumference of off-axis and off-axis 3-2 off-axis the second circumference of 3-2 of 3 standard component of eccentric shaft
Off-axis 3-2 axis, it is parallel with main shaft 3-1 axis；3 main shaft 3-1 of eccentric shaft carrys out back rotation along main shaft 3-1 axis, eccentric shaft 3
Off-axis 3-2 is also along the servo-actuated rotation of main shaft 3-1 axis；Since big Rocker arm 5 and the first mounting bracket 4 are rotatablely connected, eccentric shaft 3
Off-axis 3-2 rotation process in, the first circumference of off-axis on eccentric shaft 3 is rolled around along the first support sword 9, rolls big rocking arm
5 rotate upwardly and downwardly therewith；Due to the first circumference of off-axis and off-axis 3-2 off-axis the second circumferential concentrics of 3-2, therefore, on eccentric shaft 3
The second circumference of off-axis 3-2 is rolled around along the second support sword 10, and relative displacement does not occur between small rocker 7 and big Rocker arm 5.It is described
The zero of axis parallel degree detection device of eccentric shaft 3 be provided with, at this point, between 7 lower face of rangefinder 8 and small rocker
Spacing is normal pitch.
After zero is provided with, axis parallel degree detection is carried out to eccentric shaft 3 to be detected.
Eccentric shaft 3 to be detected is positioned in the axis parallel degree detection device of the eccentric shaft 3；Bias to be detected
Two ends of the main shaft 3-1 of axis 3 are respectively placed on vee-block 2, and the side wall of off-axis 3-2 contacts the first support sword 9 and respectively
Two support swords 10, in the process, the distance between rangefinder 8 and 7 lower face of small rocker are to measure spacing, in eccentric shaft 3
In rotation process, rangefinder 8 acquires multiple ranging spacing；It is inclined on off-axis 3-2 along main shaft 3-1 axis eccentric rotation axis 3 back and forth
The first circumference of axis rolls on the first support sword 9, and big Rocker arm 5 is driven to rotate upwardly and downwardly；The second circumference of off-axis 3-2 on off-axis 3-2
Then rolled on the second support sword 10；If main shaft 3-1 axis are parallel with off-axis 3-2 axis, the first circumference of off-axis and off-axis 3-2
Between big Rocker arm 5 and small rocker 7 relative displacement does not occur for the second circumferential concentric；It is equal with normal pitch to measure spacing；If main
Axis 3-1 axis and off-axis 3-2 axis are not parallel, then the first circumference of off-axis and off-axis 3-2 the second circumference decentractions, 3 turns of eccentric shaft
During dynamic, the first circumference of off-axis on off-axis 3-2 rolls on the first support sword 9, and the off-axis 3-2 second on off-axis 3-2 justifies
Zhou Ze second support sword 10 on roll when, relative displacement occurs between big Rocker arm 5 and small rocker 7, several measure spacing with
Normal pitch is unequal.Wherein, and the maximum ranging spacing of normal pitch deviation is off-axis spacing；
Deviation spacing=off-axis spacing-gauged distance is set, deviation spacing is the angle of main shaft 3-1 axis and off-axis 3-2 axis
The length of opposite side, the axis parallel degree of deviation spacing characterizing eccentric shaft 3.The absolute value of deviation spacing is bigger, shows that eccentric shaft 3 is led
The angle of deviation between axis 3-1 axis and off-axis 3-2 axis is bigger.
The main shaft 3-1 of eccentric shaft 3 is stuck in vee-block 2 by the present invention, and the first support sword 9 and first is arranged and supports sword 9
Cutting edge and the first circumference of off-axis are tangent, and the second support sword 10 and second supports the cutting edge of sword 10 and the second circumference of off-axis tangent, turns
Dynamic eccentric shaft 3, the big Rocker arm 5 rotated upwardly and downwardly ensure that the first circumference of off-axis is rolled along the cutting edge of the first support sword 9, rotate upwardly and downwardly
Small rocker 7 then ensures that the second circumference of off-axis 3-2 is rolled along the cutting edge of the second support sword 10；Using standard component adjust big Rocker arm 5 and
The position of small rocker 7 so that 3 main shaft 3-1 axis of the eccentric shaft cutting edge and for making the first support sword 9 parallel with off-axis 3-2 axis
The cutting edge of two support swords 10 is mutually parallel, and vertical relative to main shaft 3-1 axis；When the main shaft 3-1 axis of eccentric shaft 3 to be detected
When line and not parallel off-axis 3-2 axis, the second circumference of off-axis 3-2 small rocker 7 along the cutting edge rolling process of the second support sword 10
Relatively large Rocker arm 5 rotates upwardly and downwardly, and the spacing between 7 lower face of big Rocker arm 5 upper surface and small rocker changes, thus will be eccentric
It is difficult to the angle monitored between 3 off-axis 3-2 axis of axis and main shaft 3-1 axis, is converted to the length of opposite side corresponding with angle, is led to
Whether the length for crossing detection opposite side is zero, detects 3 off-axis 3-2 axis of eccentric shaft and whether main shaft 3-1 axis are parallel, relative to two
The range sensor of a super large range or mechanical measurement table for ranging follow the track of 3 rotary oscillation of eccentric shaft to be examined
It surveys, measurement accuracy is greatly promoted up to 0.0005mm, measurement accuracy, and easy to operate, quick.
Rangefinder 8 uses contactless rangefinder 8, and in the present embodiment, the range sensor in the rangefinder 8 is gas
Dynamic sensor.It is pneumoelectric type electron beam micrometer in the rangefinder 8.
As shown in fig. 6, pneumoelectric type electron beam micrometer includes pneumatic transmitter, air source, air filter, air valve, voltage stabilizing
Device, pneumatic-to-current converter, linear amplifier circuit, analog/digital conversion module, processor, touch display screen and pin-saving chip；Pneumoelectric
Converter is QF-AH4 type pneumatic-to-current converters.The air source passes sequentially through air filter, air valve, the pneumatic biography of voltage-stablizer connection
The gas vent of the gas access of sensor, pneumatic transmitter is sequentially connected pneumatic-to-current converter, the signal output end of pneumatic-to-current converter
The input terminal of analog/digital conversion module, the letter of the output end connection processing device of analog/digital conversion module are connected by linear amplifier circuit
Number input terminal, the processor are connected with touch display screen, and processor is connected with pin-saving chip.The pneumoelectric
Type electron beam micrometer further includes qualified indicator light, unqualified indicator light and severe deviations indicator light and indicating lamp control circuit,
The indicator light control terminal of processor connects qualified indicator light, unqualified indicator light and severe deviations by indicating lamp control circuit and refers to
Show lamp.
The processor uses 51 series monolithics.
Qualified critical and severe deviations critical value is set in the processor, and inputs the standard room when device is zeroed
Away from.In the rotation process of eccentric shaft 3, the pneumatic transmitter acquisition in the pneumoelectric type electron beam micrometer and small rocker 7
The distance between lower face signal, the distance signal are converted to electric signal via pneumatic-to-current converter, and electric signal is via analog/digital
Conversion module is converted to measurement spacing.Processor compares each measurement spacing with normal pitch, selects and normal pitch
The maximum measurement spacing of deviation is as off-axis spacing.
Deviation spacing is calculated via processor.
According to the symbol of deviation spacing, the bias direction of the off-axis 3-2 of eccentric shaft 3 can determine whether.By the absolute of off-axis spacing
Value is compared with qualified critical value and severe deviations critical value, if the absolute value of the deviation spacing of eccentric shaft 3 is fallen within, [0, qualification is faced
Dividing value] among, then processor controls qualified indicator light by indicating lamp control circuit and lights；If the off-axis spacing of eccentric shaft 3
Absolute value fall within (qualified critical value, severe deviations critical value] among, then processor by indicating lamp control circuit control do not conform to
Lattice indicator light lights;If the absolute value of the off-axis spacing of eccentric shaft 3 is more than severe deviations critical value, processor passes through instruction
Lamp control circuit control severe deviations indicator light lights.
The setting of qualified indicator light, unqualified indicator light and severe deviations indicator light, intuitive convenient for staff, quick,
Accurately judge whether eccentric shaft 3 is qualified, and judge the unqualified degree of eccentric shaft 3, classified, convenient for follow-up work
It carries out.
Pin-saving chip stores the off-axis spacing for the eccentric shaft 3 that detection obtains, and is looked by touch display screen
It sees, convenient for problem retrospect and 3 data statistics of eccentric shaft, analysis, searches equipment fault.
The testing agency further includes big rocking arm resetting spring 17 and small rocker resetting spring 18, and the big rocking arm is multiple
Position 17 one end of spring is fixedly connected with big Rocker arm 5 lower face, and big 17 other end of rocking arm resetting spring is fixedly connected with detection platform 1, protects
When demonstrate,proving big Rocker arm 5 the first circumference of off-axis being followed to rotate upwardly and downwardly, the cutting edge and the first circumference of off-axis of the first support sword 9 are tightly bonded,
Promote the accuracy of detection；Described 18 one end of small rocker resetting spring is fixedly connected with 7 lower face of small rocker, and the other end, which is fixed, to be connected
Big Rocker arm 5 is connect, when ensureing that small rocker 7 follows the second circumference of off-axis 3-2 to rotate upwardly and downwardly, the cutting edge and off-axis 3- of the second support sword 10
2 second circumference are tightly bonded, and promote the accuracy of detection.Gap greatly between Rocker arm 5 and small rocker 7 is 0.003 ~ 0.005mm,
If the cutting edge of the cutting edge of the first support sword 9 or the second support sword 10 is not bonded with off-axis 3-2 axial walls, detection essence can be largely effected on
Degree.
The axis parallel degree detection device of the eccentric shaft 3 further includes off-axis limiting device, off-axis limit dress
Set the right side for being fixedly installed on big Rocker arm 5；The off-axis limiting device includes the off-axis limited block of corresponding second cutting edge setting
11 and the fixed plate 12 for fixing off-axis limited block 11, the off-axis limited block 11 pass through fixed plate 12 and detection platform 1
It is fixedly connected.
In the rotation process of eccentric shaft 3, the right end of off-axis 3-2 is bonded with off-axis limited block 11, prevents eccentric shaft 3 or so
Play further promotes accuracy of detection.
The axis parallel degree detection device of the eccentric shaft 3 further includes the big rocking arm for limiting big Rocker arm 5 angular displacement
Limiting device, the big rocking arm limiting device include the limited post 13 being fixedly installed on big Rocker arm 5 side wall and to limiting plate
Corresponding big rocking arm limiting plate 14, the big Rocker arm 5 are fixedly installed on 1 upper surface of detection platform, and the big rocking arm limit
It is long lumbar hole that plate 14, which is provided with 13 matched limit hole 14-1 of limited post, the limit hole 14-1, and big Rocker arm 5 is only one
It is rotated upwardly and downwardly in fixed angle, prevents big Rocker arm 5 inordinate rotation, to the invalid abrasion for preventing first bearing 4-2 and anti-major structure
It is loosened faster at first rotating shaft 4-1 interconnecting pieces, extends the service life of described device.
The axis parallel degree detection device of the eccentric shaft 3 further includes covering at 7 turns of big Rocker arm 5 turning end and small rocker
The protecting crust 15 of moved end protects the bearing of 7 turning end of big Rocker arm 5 turning end and small rocker not to be corroded or pollute easily, ensures
The bearing accuracy of first bearing 4-2 and second bearing, to ensure the accuracy of detection of described device.
As shown in fig. 7, corresponding to big Rocker arm 5 upper surface in the protecting crust 15 is provided with anticollison block 16.Prevent small rocker 7
Or big Rocker arm 5 collides during being rotated up with protection box, ensures the service life of described device.
Claims (10)
1. a kind of axis parallel degree detection device of eccentric shaft, it is characterised in that：Including detection platform, main shaft position-limit mechanism and inspection
Survey mechanism；The main shaft position-limit mechanism includes two vee-blocks for being used to support main shaft；Two vee-blocks along left and right to
It is set to detection platform upper surface；
The testing agency includes the first mounting bracket and big rocking arm, the second mounting bracket and small rocker and rangefinder, rangefinder
In be provided with range sensor；First mounting bracket is fixedly installed on detection platform upper surface, big rocking arm and the first installation
Frame is rotatablely connected, and big rocking arm edge is front and back to setting, and positioned at the right side of main shaft position-limit mechanism, the small rocker is before
It is set to the surface of big rocking arm backward, the second mounting bracket is fixedly connected with big rocking arm, and small rocker and the rotation of the second mounting bracket connect
It connects；Big rocking arm upper surface and small rocker lower face are provided with gap；It is provided with and is used to support partially on the big rocking arm upper surface
The first of axis supports sword, and the first support sword is corresponded on the small rocker upper surface and is provided with the second support sword；Described shakes greatly
Top-down ranging through-hole is provided on arm, the rangefinder is fixedly installed on the lower face of big rocking arm, and in rangefinder
Range sensor be located at ranging through hole；
When the main-shaft axis of eccentric shaft is parallel with off-axis axis, when along eccentric shaft main-shaft axis eccentric rotation axis, small rocker phase
To big rocking arm remains stationary；It is inclined along the rotation of eccentric shaft main-shaft axis when the main-shaft axis of eccentric shaft and not parallel off-axis axis
When mandrel, the relatively large rocking arm of small rocker rotates upwardly and downwardly.
2. the axis parallel degree detection device of eccentric shaft according to claim 1, it is characterised in that：The testing agency
Further include big rocking arm resetting spring and small rocker resetting spring, described big rocking arm resetting spring one end is fixedly connected under big rocking arm
End face, the big rocking arm resetting spring other end are fixedly connected with detection platform；Described small rocker resetting spring one end is fixedly connected small
Rocking arm lower face, the other end are fixedly connected with big rocking arm.
3. the axis parallel degree detection device of eccentric shaft according to claim 1, it is characterised in that：It further include off-axis limit
Device, the off-axis limiting device are fixedly installed on the right side of big rocking arm；The off-axis limiting device includes corresponding second
The off-axis limited block of cutting edge setting and fixed plate for fixing off-axis limited block, the off-axis limited block by fixed plate with
Detection platform is fixedly connected.
4. the axis parallel degree detection device of eccentric shaft according to claim 1, it is characterised in that：Further include for limiting
The big rocking arm limiting device of big rocking arm angular displacement, the big rocking arm limiting device includes being fixedly installed on big rocking arm side wall
For limited post with to the corresponding big rocking arm limiting plate of limiting plate, the big rocking arm is fixedly installed on detection platform upper surface, and institute
State big rocking arm limiting plate be provided with the matched limit hole of limited post, the limit hole be long lumbar hole.
5. the axis parallel degree detection device of eccentric shaft according to claim 1, it is characterised in that：Further include covering at greatly
The protecting crust of rocking arm turning end and small rocker turning end.
6. the axis parallel degree detection device of eccentric shaft according to claim 1, it is characterised in that：In the protecting crust
Corresponding big rocking arm upper surface is provided with anticollison block.
7. the axis parallel degree detection device of eccentric shaft according to claim 1, it is characterised in that：In the rangefinder
Range sensor be pneumatic transmitter.
8. the axis parallel degree detection device of eccentric shaft according to claim 7, it is characterised in that：In the rangefinder
For pneumoelectric type electron beam micrometer.
9. the axis parallel degree detection device of eccentric shaft according to claim 8, it is characterised in that：The pneumoelectric type electricity
Sub- column micrometer include pneumatic transmitter, air source, air filter, air valve, voltage-stablizer, pneumatic-to-current converter, linear amplifier circuit,
Analog/digital conversion module, processor, touch display screen and pin-saving chip；The air source passes sequentially through air filter, gas
The gas access of valve, voltage-stablizer connection pneumatic transmitter, the gas vent of pneumatic transmitter are sequentially connected pneumatic-to-current converter, pneumoelectric
The signal output end of converter by linear amplifier circuit connect analog/digital conversion module input terminal, analog/digital conversion module it is defeated
The signal input part of outlet connection processing device, the processor are connected with touch display screen, and processor and data store core
Piece is connected.
10. the axis parallel degree detection device of eccentric shaft according to claim 9, it is characterised in that：The pneumoelectric type
Electron beam micrometer further includes qualified indicator light, unqualified indicator light and severe deviations indicator light and indicating lamp control circuit, place
The indicator light control terminal for managing device connects qualified indicator light, unqualified indicator light and severe deviations instruction by indicating lamp control circuit
Lamp.
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| CN201810715879.6A CN108534718B (en) | 2018-07-03 | 2018-07-03 | Axis parallelism detection device of eccentric shaft |
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| CN201810715879.6A CN108534718B (en) | 2018-07-03 | 2018-07-03 | Axis parallelism detection device of eccentric shaft |
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| CN108534718B CN108534718B (en) | 2023-08-29 |
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| Publication number | Publication date |
|---|---|
| CN108534718B (en) | 2023-08-29 |
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