CN102901456B - Pick-up unit and detect the method for the external diameter of circular shaft, jitter values, out of roundness - Google Patents
Pick-up unit and detect the method for the external diameter of circular shaft, jitter values, out of roundness Download PDFInfo
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- CN102901456B CN102901456B CN201210335508.8A CN201210335508A CN102901456B CN 102901456 B CN102901456 B CN 102901456B CN 201210335508 A CN201210335508 A CN 201210335508A CN 102901456 B CN102901456 B CN 102901456B
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- guide rail
- circular shaft
- detected
- measuring instrument
- top tip
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Pick-up unit and adopt above-mentioned detection device to detect a method for the external diameter of circular shaft, jitter values, out of roundness, comprises base portion, optical measurement portion, top tip part and PC-PLC control center; Wherein base portion comprises substrate and two substrates guide rail, and optical measurement portion and top tip part are slidably mounted on base portion; Optical measurement portion comprises optical measuring instrument guide rail and optical measuring instrument, and optical measuring instrument slide is located on substrate guide rail; Optical measuring instrument slides and is located on described optical measuring instrument guide rail; Top tip part comprises top guide rail and is slidably arranged in the first top tip structure and the second top tip structure on top guide rail.The motion of PC-PLC control center control both optical measurement section, top tip part opposed base wall.Measured circular shaft to be detected by optical measuring instrument, and measurement data is fed back to PC-PLC control center, PC-PLC control center then can calculate the external diameter of circular shaft to be detected, jitter values and out of roundness according to measured data.
Description
Technical field
The present invention relates to a kind of optical detection apparatus, particularly relate to a kind of pick-up unit and the detection method that can be used for the external diameter, jitter values, out of roundness etc. of detection axis.
Background technology
At present, along with the high speed development of industry, for avoid circular shaft type parts because of external diameter, jitter values, out of roundness fluctuation excessive applied equipment cause wearing and tearing or fault, therefore, the detection of circular shaft parts is necessitated.In measurement industry, prior art utilizes directional light more, scans parallel beam or expands the parallel light velocity irradiates measured object, carry out the measurement that the time is blocked in light velocity scanning, or directional light blocks the measurement of position to its projection size.But such metering system mostly is semiautomatic fashion: testing staff needs hand-held optical gauge to measure circular shaft, and records measurement data one by one, and detection efficiency is very low.
Summary of the invention
Technical matters to be solved by this invention is, provide a kind of can the pick-up unit of quick and precisely automatically detection axis external diameter, jitter values, out of roundness.
The present invention is achieved in that provides a kind of pick-up unit, and it comprises base portion, optical measurement portion, top tip part and PC-PLC control center; Described optical measurement portion and described top tip part are slidably mounted on described base portion; Described PC-PLC control center controls the motion of described optical measurement portion, the relatively described base portion of described top tip part; Described base portion comprises substrate and is located at two substrate guide rails on described substrate; Described two substrate guide rails are respectively along its horizontal expansion, and alternate setting in the vertical; Described optical measurement portion comprises optical measuring instrument guide rail and is located at the optical measuring instrument on described optical measuring instrument guide rail; Described optical measuring instrument is used for measuring circular shaft to be detected, and measurement data is fed back to described PC-PLC control center, and described PC-PLC control center calculates the detection data of described circular shaft to be detected according to described measurement data; Described optical measuring instrument guide rail is laterally slidably arranged on described substrate guide rail; Described optical measuring instrument is slidably arranged on described optical measuring instrument guide rail; Described top tip part comprises top guide rail, the first top tip structure and the second top tip structure; Described top guide rail transversely its horizontal expansion arrange on the substrate, and in the vertical and described two substrate guide rail intervals arrange; Transversely it is laterally slidably disposed on one end of described top guide rail to described first top tip structure; Described second top tip structure is laterally slidably disposed on the other end of described top guide rail along it.。
Further, described top tip part also comprises V-type supporting seat; Described V-type supporting seat is laterally slidably arranged on described top guide rail along it, and for supporting described circular shaft to be detected between described first top tip structure and described second top tip structure.
Further, described first top tip structure and described second top tip structure comprise housing, cylinder guide rail, cylinder, Telescopic-cylinder bar, top and motor respectively; Described housing comprises base plate, pedestal and fixed block; Described base plate is provided with the chute matched with described top guide rail; Described pedestal to be arranged on described base plate and along with described base plate is relative to described top slide; Described pedestal is provided with opening; Described fixed block is arranged on described base plate; Described cylinder guide rail to be arranged on described base plate and along its horizontal expansion; Described pedestal is slidably mounted on described cylinder guide rail; Described cylinder is arranged on described pedestal; One end of described Telescopic-cylinder bar is arranged in described cylinder, the other end of described Telescopic-cylinder bar extends to the outside of described cylinder and scalable through the described opening on described pedestal, and makes described cylinder drive described pedestal laterally to reciprocatingly slide relative to described cylinder guide rail along it on described cylinder guide rail by described fixed block; Describedly toply to be arranged on described pedestal, and together to move along with described pedestal; Described motor is arranged on the side of described housing, drives described top rotation.
Further, the described fixed block of described first top tip structure is positioned at the described top side closing on described first top tip structure of described housing; The described fixed block of described second top tip structure is positioned at the described top side away from described second top tip structure of described housing.
Further, describedly toply the inner fovea part being formed in its front end and the limited block be removably located in described inner fovea part is comprised; Described limited block coordinates with described circular shaft to be detected.
Further, described limited block is truncated cone-shaped, in order to detect solid circular shaft; The limited block of described truncated cone-shaped is provided with inner groovy, and the chamfering of the circular shaft that the outer ring of described inner groovy is solid with described survey matches.
Further, described limited block conically, in order to detect hollow circular shaft; Described conical limited block matches with the inner ring of described hollow circular shaft.
Described pick-up unit comprises feed mechanism, blanking mechanism for sorting and manipulator mechanism further; Described feed mechanism captures described circular shaft to be detected, and is placed into by the circular shaft detected in described blanking mechanism for sorting; Described PLC-PC control center controls the crawl of described manipulator mechanism to circular shaft, and control described blanking mechanism for sorting according to measurement, classification results carries out blanking and sorting.
Further, described manipulator mechanism is arranged on described substrate, and have two columns be vertically built on described substrate and the crossbeam be set up on column described in two, manipulator part is located on this crossbeam, along the guide rail slippage that described crossbeam is arranged.
Present invention also offers a kind of method adopting pick-up unit described above to detect the external diameter of circular shaft, jitter values, out of roundness, optical measuring instrument described in it emits beam according to it and is obtained data by the shade that described circular shaft to be detected covers rear generation, to make tangent line with light vertical section circular shaft marginal point, obtain shade spacing d, record spacing L1 or L2 with circular shaft edge and each point of contact of light and light Distances Between Neighboring Edge Points; After described circular shaft to be detected rotates at least one week, described optical measuring instrument obtains data (d1, d2, dn), (L11 ..., L1n) or (L21, L2n), described data record calculates by described PC-PLC control center: by (d1, d2,, dn) and the external diameter value of circular shaft to be detected described in mean value calculation; By calculate (L11 ..., L1n) or (L21 ..., L2n) in the difference of maxima and minima, drawing an axle jitter values of described circular shaft to be detected, by calculating some axle jitter values, drawing the average jitter of described circular shaft to be detected; By calculate (d1, d2 ..., dn) in the difference of maxima and minima, drawing a proper circle angle value of described circular shaft to be detected, by calculating some proper circle angle value, drawing the Average True circularity of described circular shaft to be detected.
Compared with prior art, pick-up unit of the present invention is by PC-PLC control center control both optical measurement section, the motion of top tip part opposed base wall, and by regulating the relative motion between optical measuring instrument guide rail and substrate guide rail and the relative motion between optical measuring instrument and optical measuring instrument guide rail, optical measuring instrument quick and precisely can be dripped and be transferred to suitable measuring position, simultaneously, first top tip structure and the second top tip structure are slidably disposed in a first direction can be quick on top guide rail, step up easily or unclamp circular shaft to be detected, therefore, pick-up unit of the present invention can quick and precisely automatic detection axis external diameter, jitter values, the pick-up unit of out of roundness.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of instructions, and can become apparent to allow above and other object of the present invention, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of pick-up unit in one embodiment of the invention.
Fig. 2 is the front view of pick-up unit in Fig. 1.
Fig. 3 is the vertical view of pick-up unit in Fig. 1.
Fig. 4 is the enlarged diagram of top tip part in Fig. 1.
Fig. 5 is the schematic diagram of another angle of top tip part in Fig. 4.
Fig. 6 is the schematic diagram of top tip part in another embodiment of the present invention.
Fig. 7 is the schematic diagram that in one embodiment of the invention, top tip part coordinates with truncated cone-shaped limited block.
Fig. 8 is that in one embodiment of the invention, top tip part coordinates schematic diagram with conical limited block.
Fig. 9 is the schematic diagram of pick-up unit in another embodiment of the present invention.
Figure 10 is the schematic diagram of another angle of pick-up unit in Fig. 9.
Figure 11 the present invention measures circular shaft external diameter, jitter values and out of roundness principle schematic.
Embodiment
In order to make technical matters to be solved by this invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Figure 1 shows that the schematic diagram of pick-up unit 100 in one embodiment of the invention.As shown in fig. 1, pick-up unit 100 comprises base portion 110, optical measurement portion 120, top tip part 130 and PC-PLC control center (not shown).Wherein, optical measurement portion 120 and top tip part 130 are all arranged on base portion 110 and also can move by opposed base wall 110.
Particularly, base portion 110 can be used for installing optical measurement portion 120 and top tip part 130.Base portion 110 comprises substrate 112 and the first guide rail be located on substrate 112 or substrate guide rail 113.
Substrate 112 has transverse direction (being illustrated as first direction D1) and longitudinal (being illustrated as second direction D2).In the embodiment shown in fig. 1, substrate 112 is rectangular, and first direction D1 is the length direction of substrate 112, and second direction D2 is the Width of substrate 112.Article two, substrate guide rail 113 is parallel to each other and being located on substrate 112 of interval.In the embodiment shown in fig. 1, two substrate guide rails 113 extend along first direction D1 respectively, and alternate setting in a second direction d 2.
The optical measuring instrument 123 that optical measurement portion 120 comprises the second guide rail or optical measuring instrument guide rail 122 and is located on optical measuring instrument guide rail 122.
Two optical measuring instrument guide rails 122 are parallel to each other and are spaced apart and arranged on substrate guide rail 113, and can move by opposing substrate guide rail 113.In the embodiment shown in fig. 1, two optical measuring instrument guide rails 122 extend along second direction D2 respectively, and interval is arranged in the first direction dl; In other words, optical measuring instrument guide rail 122 is perpendicular to substrate guide rail 113.The two ends of each optical measuring instrument guide rail 122 are arranged on substrate guide rail 113, and each optical measuring instrument guide rail 122 can move along first direction D1 relative to substrate guide rail 113.
Optical measuring instrument 123 is slidably mounted on optical measuring instrument guide rail 122.The quantity of optical measuring instrument 123 can adjust according to actual user demand, such as, can be one or more.When the quantity of optical measuring instrument 123 is 1, the quantity of optical measuring instrument guide rail 122 can correspondingly change one into.In the embodiment shown in fig. 1, the number of bits of optical measuring instrument guide rail 122 is multiple and be separately positioned on optical measuring instrument guide rail 122.Optical measuring instrument 123 can slide along second direction D2 relative to optical measuring instrument guide rail 122.
Because optical measuring instrument guide rail 122 also can slide along first direction D1 relative to substrate guide rail 113 perpendicular to substrate guide rail 113, and optical measuring instrument 123 can slide along second direction D2 relative to optical measuring instrument guide rail 122, therefore, by regulating the relative motion between optical measuring instrument guide rail 122 and substrate guide rail 113 and the relative motion between optical measuring instrument 123 and optical measuring instrument guide rail 122, optical measuring instrument 123 can be transferred to suitable measuring position.
Top tip part 130 comprises the 3rd guide rail or top guide rail 132, is located at the top tip structure at the two ends of top guide rail 132 as the first top tip structure 133 and the second top tip structure 135, and V-type supporting seat 136.
Wherein, top guide rail 132 is extended on substrate 112 along first direction D1, and in a second direction and two substrate guide rail 113 intervals arrange.In other words, top guide rail 132 and two substrate guide rails 113 be arranged in parallel, between two substrate guide rails 113 and and two substrate guide rail 113 intervals arrange.
The structure of the first top tip structure 133 and the second top tip structure 135 can identical (as all adopted structure shown in Fig. 4-5, or all adopting structure shown in Fig. 6) or similar (such as one adopt structure shown in Fig. 4-5 and another adopts structure shown in Fig. 6).Below for the structure of the first top tip structure 133 brief description first top tip structure 133 and the second top tip structure 135.
When the first top tip structure 133 adopts structure shown in Fig. 4-5, the first top tip structure 133 comprises housing 1332, cylinder guide rail 1334, cylinder 1335(as shown in Figure 7), Telescopic-cylinder bar 1336(as shown in Figure 7), top 1338 and motor 1339 as stepper motor.
Wherein, housing 1332 is slidably mounted in top guide rail 132.In the embodiment shown in Fig. 4-5, housing 1332 comprises base plate 13321, pedestal 13323 and fixed block 13324.
Base plate 13321 is provided with the chute 13325 that can match with top guide rail 132.Chute 13325 extends along first direction D1.By coordinating between chute 13325 with top guide rail 132, base plate 13321 can slide along first direction D1 relative to top guide rail 132.
Pedestal 13323 is arranged on base plate 13321 and also can slides relative to top guide rail 132 along first direction D1 along with base plate 13321.Pedestal 13323 is mainly used in collecting cylinder 1335 and cylinder expansion link 1336.Pedestal 13323 is provided with through hole 13327, wears for cylinder expansion link 1336.
It is outside that fixed block 13324 is arranged on pedestal 13323, and be generally perpendicularly arranged on base plate 13321.Have a casting lug thereon 13328 above fixed block 13324, casting lug thereon 13328 is corresponding with the through hole 13327 on pedestal 13323.
Cylinder guide rail 1334 is arranged between base plate 13321 and pedestal 13323.In the embodiment shown in Fig. 4-5, cylinder guide rail 1334 extends along first direction D1, and is arranged on base plate 13321.Pedestal 13323 is slidably mounted on cylinder guide rail 1334, pedestal 13323 both can be reciprocatingly slided relative to top guide rail 132 along first direction D1 in company with base plate 13321, can reciprocatingly slide again along first direction D1 relative to base plate 13321.
As shown in Figure 7, cylinder 1335 is arranged in pedestal 13323.In one embodiment, cylinder 1335 is arranged on pedestal 13323 by bolt etc.One end of Telescopic-cylinder bar 1336 is arranged in cylinder 1335; The other end of Telescopic-cylinder bar 1336 extends to the outside of cylinder 1335 and scalable through the through hole 13327 on pedestal 13323, and interact with the casting lug thereon 13328 on fixed block 13324, make cylinder 1335 that moving base 13323 can be with to reciprocatingly slide relative to cylinder guide rail 1334 along first direction D1 at cylinder guide rail 1334.
Top 1338 are arranged on pedestal 13323, and together can move along with pedestal 13323.As mentioned above, pedestal 13323 not only can reciprocatingly slide relative to top guide rail 132 along first direction D1 in company with base plate 13321 but also can reciprocatingly slide relative to cylinder guide rail 1334 or base plate 13321 along first direction D1, therefore, top 1338 is also both can reciprocatingly slide relative to top guide rail 132 along first direction D1 in company with base plate 13321, can reciprocatingly slide again along first direction D1 relative to cylinder guide rail 1334 or base plate 13321.Like this, the coarse adjustment of top 1338 positions can be realized relative to the slip of top guide rail 132 by control base plate 13321; The accurate adjustment of top 1338 positions can be realized relative to the slip of cylinder guide rail 1334 by control pedestal 13323.By position and then top 1338 settings of accurate adjustment of first coarse adjustment top 1338, suitable position can be adjusted to quickly and accurately by top 1338, both can improve the precision of measurement, save time, the distortion of the axle to be measured that may cause because top 1338 movement velocitys are excessive or the distortion of top 1338 or damage etc. can also have been avoided.
Motor 1339 is arranged on the side of housing 1332.In one embodiment, motor 1339 can be arranged on pedestal 13323.Motor 1339 is connected with top 1338 by belt, rotates in order to drive top 1338.
When the first top tip structure 133 adopts structure shown in Fig. 6, the structure of the first top tip structure 133 is similar to the structure shown in Fig. 4-5, and main difference part is the position of fixed block 13324 relative to pedestal 13323.
In the structure shown in Fig. 4-5, fixed block 13324 is positioned at the first side of pedestal 13323, the other end of Telescopic-cylinder bar 1336 extends to the first side of pedestal 13323, and interact with the casting lug thereon 13328 on fixed block 13324: Telescopic-cylinder bar 1336 stretches and Telescopic-cylinder bar 1336 and casting lug thereon 13328 is supported mutually in cylinder 1335, thus make cylinder 1335 and on pedestal 13323, top 1338 along first direction D1 towards substrate 130 medial motion namely in order to step up axle to be measured; Telescopic-cylinder bar 1336 shrinks and Telescopic-cylinder bar 1336 and casting lug thereon 13328 is strained mutually in cylinder 1335, thus make cylinder 1335 and on pedestal 13323, top 1338 along first direction D1 towards substrate 130 movement outside namely in order to unclamp axle to be measured.
In the structure shown in Fig. 6, situation is just contrary, and fixed block 13324 is positioned at the second side of pedestal 13323, and the first side and the second side are the contrary both sides of pedestal 13323.The other end of Telescopic-cylinder bar 1336 extends to the second side of pedestal 13323, and interact with the casting lug thereon 13328 on fixed block 13324: Telescopic-cylinder bar 1336 stretches and Telescopic-cylinder bar 1336 and casting lug thereon 13328 is supported mutually in cylinder 1335, thus make cylinder 1335 and on pedestal 13323, top 1338 along first direction D1 towards substrate 130 movement outside namely in order to unclamp axle to be measured; Telescopic-cylinder bar 1336 shrinks and Telescopic-cylinder bar 1336 and casting lug thereon 13328 is strained mutually in cylinder 1335, thus make cylinder 1335 and on pedestal 13323, top 1338 along first direction D1 towards substrate 130 medial motion namely in order to step up axle to be measured.
Axle to be measured can be stepped up or unclamp by regulating the position of the first top tip structure 133 and the second top tip structure 135.V-type supporting seat 136 can be arranged on top guide rail 132, and for supporting circular shaft to be detected between the first top tip structure 133 and the second top tip structure 135.In the embodiment shown in fig. 1, V-type supporting seat 136 is slidably disposed on top guide rail 132, thus can slide into suitable position in the first direction dl to support axle to be measured along top guide rail 132.
In addition, in order to avoid, conventional detection devices is top can not change the defect causing equipment can only detect a class circular shaft, in one embodiment, as shown in Figure 7 and Figure 8, top 1338 can adopt concave shaped top, and namely top 1338 comprise the inner fovea part 13382 being formed in its front end and the limited block 13383 be removably located in inner fovea part 13382.As shown in Figure 7, limited block 13383 can be truncated cone-shaped, in order to detect solid circular shaft 200a.The limited block 13383 of truncated cone-shaped is provided with inner groovy 13387, can match with the chamfering 220a of circular shaft 200a to be measured in the outer ring 13389 of inner groovy 13387, with the chamfering 220a of circular shaft 200a to be measured for location is carried out rotating and obtained corresponding data.As shown in Figure 8, limited block 13383 can conically, in order to detect hollow circular shaft 200b: conical limited block 13383 can match with the inner ring of hollow circular shaft 200b, rotate to drive circular shaft 200b.Above-mentioned truncated cone-shaped or conical limited block 13383 with inner fovea part 13382 for Morse's taper coordinates, so that limited block 13383 and top 1338 clampings and replacing, thus kind and the size of limited block 1338 can be changed according to circular shaft to be detected, make pick-up unit 100 can adapt to multiple circular shaft like this and detect.
In addition, pick-up unit 100 also comprises PC-PLC control center (not shown), and it can be divided into computing module and analysis module, and can according to calculating the motion controlling above-mentioned parts with analytic process.
In one embodiment of this invention, as shown in figs. 9-10, pick-up unit 100 also can comprise feed mechanism 140, blanking mechanism for sorting 150 and manipulator mechanism 160 further.Feed mechanism 140 and blanking mechanism for sorting 150 lay respectively at the both sides of base portion 110; Manipulator mechanism 160 is arranged on substrate 112, there is two columns 161 be vertically built on described substrate 112 and the crossbeam 162 be set up on two columns 161, manipulator part is located on this crossbeam 162, can along the guide rail slippage that crossbeam 162 is arranged, for capturing circular shaft to be detected from feed mechanism 140, the circular shaft to be detected captured can be placed on V-type supporting seat 136, and the circular shaft detected can be placed in blanking mechanism for sorting 150.In the embodiment shown in Fig. 9-10, PLC-PC control center can control the crawl of manipulator mechanism 160 pairs of circular shafts, and can control blanking mechanism for sorting 150 according to measurement, classification results carries out blanking and sorting, thus can realize circular shaft from material loading to the full-automation of sorting, reduce manually-operated labour intensity, be applicable to the situation that circular shaft quantity to be detected is large, it reduces manual detection intensity, improves detection efficiency.
In addition, pick-up unit 100 also can comprise display screen further, in order to show testing result and classification situation, can convenient operation personnel classify to circular shaft according to result.
Above-mentioned is the concrete structure of pick-up unit 100 in one embodiment of the invention, according to above-mentioned detection device, present invention also offers detect circular shaft external diameter, jitter values, out of roundness method.
Before detection starts, length according to circular shaft to be detected adjusts the first top tip structure 133, second top tip structure 135, the position of V-type supporting seat 136 on top guide rail 132 by above-mentioned coarse adjustment mode, and the mode simultaneously by above mentioning adjusts the position of optical measuring instrument 123 on optical measuring instrument guide rail 122 and substrate guide rail 113 to determine the detection position of circular shaft 200 to be measured.Operating personnel are typing or the master bar data by detecting corresponding circular shaft in PC-PLC control center database in advance, in PC, set external diameter again, beat, out of roundness deviate sub-material scope, to determine to detect rear machinery or the scope that manually belongs to according to deviate carries out sorting to circular shaft.
As Figure 1-3, when circular shaft 200 to be detected is placed on V-type supporting seat 136, circular shaft 200 to be detected is between the first top tip structure 133 and the second top tip structure 135; Now, the Telescopic-cylinder bar 1336 of the cylinder 1335 in the first top tip structure 133 and the second top tip structure 135 stretches or tightens, interact with the casting lug thereon 13328 on fixed block 13324, promote pedestal 13323 and top top 1338 along top guide rail 132 toward base portion 110 in the middle of draw close, make top 1338 just to clamp by circular shaft 200 to be detected with the two ends apical graftings of circular shaft 200 to be detected.When behind top 1338 with circular shaft 200 apical grafting to be detected, stepper motor 1339 in top 1338 sides is rotated by belt drive top 1338, optical measuring instrument 123 is measured circular shaft 200 related data to be detected, and by data feedback to PC-PLC control center.
In measuring process, as shown in figure 11, after circular shaft 200 to be detected starts rotation, optical measuring instrument 123 starts to measure circular shaft 200 corresponding data to be detected.Optical measuring instrument 123 emits beam according to it and is obtained data by the shade that circular shaft 200 to be detected covers rear generation, to make tangent line with light vertical section circular shaft marginal point, obtains shade spacing d.Spacing L1 or L2 is recorded with circular shaft edge and each point of contact of light and light Distances Between Neighboring Edge Points.Because circular shaft 200 to be detected rotates at least one week, thus can obtain data (d1, d2 ..., dn), (L11 ..., L1n) or (L21 ..., L2n), PC-PLC control center is by data record and be delivered to computing module.By to (d1, d2 ..., dn) and the external diameter value of mean value calculation circular shaft 200 to be detected.By calculate (L11 ..., L1n) or (L21 ..., L2n) in the difference of maxima and minima, drawing an axle jitter values of circular shaft 200 to be detected, by calculating some axle jitter values, drawing the average jitter of circular shaft 200 to be detected.By calculate (d1, d2 ..., dn) in the difference of maxima and minima, drawing a proper circle angle value of circular shaft 200 to be detected, by calculating some proper circle angle value, drawing the Average True circularity of circular shaft 200 to be detected.Above-mentioned mean outside diameter value, axle jitter values and proper circle angle value can ensure the objectivity detecting data.In addition, can setting data output form comprises excel or max, min, ave, cpk process capability form makes the data of testing staff to circular shaft 200 to be detected very clear in PC-PLC control center.
After treating that a circular shaft 200 to be detected detects, stepper motor 139 stops operating, Telescopic-cylinder bar 1336 stretches or tightens, interact with the casting lug thereon 13328 on fixed block 13324, promote top 1338 of pedestal 13323 and top along top guide rail 132 toward base portion 110 movement outside, make top 1338 to be just separated with the two ends of circular shaft 200 to be detected to unclamp by circular shaft 200 to be detected, then circular shaft 200 to be detected is taken away.Numerical classification scope is detected owing to having preset before detection starts, data can compare with detection numerical range, classify by PC-PLC control center, and result is delivered to display screen or corresponding blanking mechanism for sorting 150, control blanking mechanism for sorting 150 and complete circular shaft sub-material.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a pick-up unit, is characterized in that, it comprises base portion, optical measurement portion, top tip part and PC-PLC control center; Described optical measurement portion and described top tip part are slidably mounted on described base portion; Described PC-PLC control center controls the motion of described optical measurement portion, the relatively described base portion of described top tip part; Described base portion comprises substrate and is located at two substrate guide rails on described substrate; Described two substrate guide rails are respectively along its horizontal expansion, and alternate setting in the vertical; Described optical measurement portion comprises optical measuring instrument guide rail and is located at the optical measuring instrument on described optical measuring instrument guide rail; Described optical measuring instrument is used for measuring circular shaft to be detected, and measurement data is fed back to described PC-PLC control center, and described PC-PLC control center calculates the detection data of described circular shaft to be detected according to described measurement data; Described optical measuring instrument guide rail is laterally slidably arranged on described substrate guide rail; Described optical measuring instrument is slidably arranged on described optical measuring instrument guide rail; Described top tip part comprises top guide rail, the first top tip structure and the second top tip structure; Described top guide rail along described substrate horizontal expansion arrange on the substrate, and in the vertical and described two substrate guide rail intervals arrange; Described first top tip structure is slidably disposed on one end of described top guide rail along the transverse direction of described substrate; Described second top tip structure is slidably disposed on the other end of described top guide rail along the transverse direction of described substrate; Described first top tip structure and described second top tip structure comprise housing, cylinder guide rail, cylinder, Telescopic-cylinder bar, top and motor respectively; Described housing comprises base plate, pedestal and fixed block; Described base plate is provided with the chute matched with described top guide rail; Described pedestal to be arranged on described base plate and along with described base plate is relative to described top slide; Described pedestal is provided with opening; Described fixed block is arranged on described base plate; Described cylinder guide rail to be arranged on described base plate and along its horizontal expansion; Described pedestal is slidably mounted on described cylinder guide rail; Described cylinder is arranged on described pedestal; One end of described Telescopic-cylinder bar is arranged in described cylinder, the other end of described Telescopic-cylinder bar extends to the outside of described cylinder and scalable through the described opening on described pedestal, and makes described cylinder drive described pedestal laterally to reciprocatingly slide relative to described cylinder guide rail along it on described cylinder guide rail by described fixed block; Describedly toply to be arranged on described pedestal, and together to move along with described pedestal; Described motor is arranged on the side of described housing, drives described top rotation.
2. pick-up unit as claimed in claim 1, it is characterized in that, described top tip part also comprises V-type supporting seat; Described V-type supporting seat is laterally slidably arranged on described top guide rail along it, and for supporting described circular shaft to be detected between described first top tip structure and described second top tip structure.
3. pick-up unit as claimed in claim 1, it is characterized in that, the described fixed block of described first top tip structure is positioned at the described top side closing on described first top tip structure of described housing; The described fixed block of described second top tip structure is positioned at the described top side away from described second top tip structure of described housing.
4. as the pick-up unit in claims 1 to 3 as described in any one, it is characterized in that, describedly toply comprise the inner fovea part being formed in its front end and the limited block be removably located in described inner fovea part; Described limited block coordinates with described circular shaft to be detected.
5. pick-up unit as claimed in claim 4, it is characterized in that, described limited block is truncated cone-shaped, in order to detect solid circular shaft; The limited block of described truncated cone-shaped is provided with inner groovy, matches with the chamfering of described solid circular shaft in the outer ring of described inner groovy.
6. pick-up unit as claimed in claim 4, is characterized in that, described limited block conically, in order to detect hollow circular shaft; Described conical limited block matches with the inner ring of described hollow circular shaft.
7. as the pick-up unit in claims 1 to 3 as described in any one, it is characterized in that, described pick-up unit comprises feed mechanism, blanking mechanism for sorting and manipulator mechanism further; Described feed mechanism captures described circular shaft to be detected, and is placed into by the circular shaft detected in described blanking mechanism for sorting; Described PC-PLC control center controls the crawl of described manipulator mechanism to circular shaft, and control described blanking mechanism for sorting according to measurement, classification results carries out blanking and sorting.
8. pick-up unit as claimed in claim 7, it is characterized in that, described manipulator mechanism is arranged on described substrate, there is two columns be vertically built on described substrate and the crossbeam be set up on column described in two, manipulator part is located on this crossbeam, along the guide rail slippage that described crossbeam is arranged.
9. the method for the external diameter adopting claim 1 to 8 pick-up unit described in any one to detect circular shaft, jitter values, out of roundness, it is characterized in that, described optical measuring instrument emits beam according to it and is obtained data by the shade that described circular shaft to be detected covers rear generation, to make tangent line with light vertical section circular shaft marginal point, obtain shade spacing d, record spacing L1 or L2 with circular shaft edge and each point of contact of light and light Distances Between Neighboring Edge Points; After described circular shaft to be detected rotates at least one week, described optical measuring instrument obtains data (d1, d2, dn), (L11 ..., L1n) or (L21, L2n), described data record calculates by described PC-PLC control center: by (d1, d2,, dn) and the external diameter value of circular shaft to be detected described in mean value calculation; By calculate (L11 ..., L1n) or (L21,, L2n) in the difference of maxima and minima, draw an axle jitter values of described circular shaft to be detected, by calculating some axle jitter values, draw the average jitter of described circular shaft to be detected; By calculate (d1, d2 ..., dn) in the difference of maxima and minima, drawing a proper circle angle value of described circular shaft to be detected, by calculating some proper circle angle value, drawing the Average True circularity of described circular shaft to be detected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210335508.8A CN102901456B (en) | 2012-09-12 | 2012-09-12 | Pick-up unit and detect the method for the external diameter of circular shaft, jitter values, out of roundness |
| PCT/CN2013/082536 WO2014040499A1 (en) | 2012-09-12 | 2013-08-29 | Detection device and method for detecting circular shaft outer diameter, runout value and roundness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210335508.8A CN102901456B (en) | 2012-09-12 | 2012-09-12 | Pick-up unit and detect the method for the external diameter of circular shaft, jitter values, out of roundness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102901456A CN102901456A (en) | 2013-01-30 |
| CN102901456B true CN102901456B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210335508.8A Expired - Fee Related CN102901456B (en) | 2012-09-12 | 2012-09-12 | Pick-up unit and detect the method for the external diameter of circular shaft, jitter values, out of roundness |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102901456B (en) |
| WO (1) | WO2014040499A1 (en) |
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| WO2014040499A1 (en) | 2014-03-20 |
| CN102901456A (en) | 2013-01-30 |
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