CN107063136A - Guide rail detection method and system - Google Patents

Guide rail detection method and system Download PDF

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Publication number
CN107063136A
CN107063136A CN201710048235.1A CN201710048235A CN107063136A CN 107063136 A CN107063136 A CN 107063136A CN 201710048235 A CN201710048235 A CN 201710048235A CN 107063136 A CN107063136 A CN 107063136A
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CN
China
Prior art keywords
guide rail
coordinate data
measured
reflective mirror
data
Prior art date
Application number
CN201710048235.1A
Other languages
Chinese (zh)
Inventor
曾勇
徐宁
张亚坤
王斌
周海
Original Assignee
盐城工学院
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Application filed by 盐城工学院 filed Critical 盐城工学院
Priority to CN201710048235.1A priority Critical patent/CN107063136A/en
Publication of CN107063136A publication Critical patent/CN107063136A/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical means
    • G01B11/26Measuring arrangements characterised by the use of optical means for measuring angles or tapers; for testing the alignment of axes
    • G01B11/27Measuring arrangements characterised by the use of optical means for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes

Abstract

The present invention provides a kind of guide rail detection method and system.Guide rail detecting system includes the guide rail detection means and computer equipment communicated to connect each other.Methods described includes:The guide rail detection means obtains the coordinate data of the multiple sampled points pre-set on guide rail to be measured, and the coordinate data of the multiple sampled point is sent into the computer equipment;Whether the computer equipment receives the coordinate data of the multiple sampled point, judge the coordinate data of the multiple sampled point in default coordinate data scope;If the coordinate data carries out linearity calculating, obtains the linearity of the guide rail to be measured in default coordinate data scope, the coordinate data to the multiple sampled point.The present invention can be detected fast and efficiently to guide rail to be measured, time saving and energy saving, and automaticity is high, alleviates the labor intensity of workman.

Description

Guide rail detection method and system

Technical field

The present invention relates to technical field of optical detection, in particular to a kind of guide rail detection method and system.

Background technology

Need to detect guide rail occur in addition during the long-term use to guide rail in the production technology of guide rail Flexural deformation the problems such as be also required to detect guide rail.In the prior art, the detection to guide rail depends on artificial experience, leads Cause to detect inaccurate, automaticity is low, the problems such as labor strength is big.

The content of the invention

In order to overcome above-mentioned deficiency of the prior art, it is an object of the invention to provide a kind of guide rail detection method and it is System, it fast and efficiently can be detected to guide rail to be measured, time saving and energy saving, and automaticity is high, alleviates the labor of workman Fatigue resistance.

To achieve these goals, the technical scheme that present pre-ferred embodiments are used is as follows:

Present pre-ferred embodiments provide a kind of guide rail detection method, applied to guide rail detecting system.The guide rail detection System includes the guide rail detection means and computer equipment communicated to connect each other.Methods described includes:

The guide rail detection means obtains the coordinate data of the multiple sampled points pre-set on guide rail to be measured, and will be described The coordinate data of multiple sampled points is sent to the computer equipment;

The computer equipment receives the coordinate data of the multiple sampled point, judges the number of coordinates of the multiple sampled point According to whether in default coordinate data scope;

If the coordinate data carries out straight line in default coordinate data scope, the coordinate data to the multiple sampled point Degree is calculated, and obtains the linearity of the guide rail to be measured.

In present pre-ferred embodiments, methods described also includes:

Light path between the guide rail detection means regulation and the guide rail to be measured, makes what the guide rail detection means was sent Incident ray is parallel with the reflection light received.

In present pre-ferred embodiments, the guide rail detection means include straight instrument, guide rail slide, reflective mirror pedestal with And reflective mirror.The straight instrument is arranged on the side of the guide rail to be measured, and the guide rail slide is arranged on the guide rail to be measured, The reflective mirror is connected with the reflective mirror pedestal, the light path between the guide rail detection means regulation and the guide rail to be measured Step includes:

The straight instrument launches incident ray to the reflective mirror, and receives the reflected light via the mirror reflection Line;

The straight instrument senses the position of the reflective mirror according to the transmitting light;

According to the position of the reflective mirror sensed, the position of the reflective mirror is adjusted, so that the straight instrument is sent Incident ray with receive reflection light it is parallel.

In present pre-ferred embodiments, the guide rail detection means obtains the multiple samplings pre-set on guide rail to be measured The step of coordinate data of point, includes:

The distance between the reflective mirror and straight instrument data are obtained, the range data are regard as the first number of coordinates According to;

Obtain first direction angular displacement data of the reflective mirror relative to the straight instrument, the first direction angular displacement Data are used as the second coordinate data;

Obtain second direction angular displacement data of the reflective mirror relative to the straight instrument, the second direction angular displacement Data as the 3rd coordinate data, wherein, the first direction is vertical with the second direction;

The number of coordinates of each sampled point is obtained according to first coordinate data, the second coordinate data and the 3rd coordinate data According to.

In present pre-ferred embodiments, the coordinate data to the multiple sampled point carries out linearity calculating, obtains To the guide rail to be measured linearity the step of include:

The coordinate data of the multiple sampled point is projected to respectively in the first plane where the guide rail to be measured, to institute The coordinate data progress fitting a straight line for stating multiple sampled points in the first plane obtains the first plane and straight line;

The coordinate data of the multiple sampled point is projected respectively in the second plane vertical with the guide rail to be measured, to institute The coordinate data progress fitting a straight line for stating multiple sampled points in the second plane obtains the second plane and straight line;

According to first plane and straight line and second plane and straight line, the error curve of the guide rail to be measured is obtained;

The minimum a pair of parallel line of distance in the parallel lines for containing the error curve is chosen, the guide rail to be measured is obtained Linearity.

Present pre-ferred embodiments also provide a kind of guide rail detecting system, and the guide rail detecting system includes leading to each other Believe the guide rail detection means and computer equipment of connection.

The guide rail detection means, the coordinate data of the multiple sampled points pre-set for obtaining on guide rail to be measured, and The coordinate data of the multiple sampled point is sent to the computer equipment;

The computer equipment, the coordinate data for receiving the multiple sampled point, judges the multiple sampled point Whether coordinate data is in default coordinate data scope;If the coordinate data is in default coordinate data scope, to described many The coordinate data of individual sampled point carries out linearity calculating, obtains the linearity of the guide rail to be measured.

In present pre-ferred embodiments:

The guide rail detection means, is additionally operable to the light path between regulation and the guide rail to be measured, makes the guide rail detection dress It is parallel with the reflection light received to put the incident ray sent.

In present pre-ferred embodiments, the guide rail detection means include straight instrument, guide rail slide, reflective mirror pedestal with And reflective mirror.The straight instrument is arranged on the side of the guide rail to be measured, and the guide rail slide is arranged on the guide rail to be measured, The reflective mirror is connected with the reflective mirror pedestal:

The straight instrument, for launching incident ray to the reflective mirror, and is received via the anti-of the mirror reflection Penetrate light;The position of the reflective mirror is sensed according to the transmitting light;According to the position of the reflective mirror sensed, regulation The position of the reflective mirror, so that the incident ray that the straight instrument is sent is parallel with the reflection light received.

In present pre-ferred embodiments:

The computer equipment, is additionally operable to obtain the distance between the reflective mirror and straight instrument data, will be described Range data is used as the first coordinate data;First direction angular displacement data of the reflective mirror relative to the straight instrument are obtained, The first direction angular displacement data are used as the second coordinate data;Obtain second party of the reflective mirror relative to the straight instrument To angular displacement data, the second direction angular displacement data as the 3rd coordinate data, wherein, the first direction and described the Two directions are vertical;The seat of each sampled point is obtained according to first coordinate data, the second coordinate data and the 3rd coordinate data Mark data.

In present pre-ferred embodiments:

The computer equipment, is additionally operable to the coordinate data of the multiple sampled point projecting to the guide rail to be measured respectively In first plane at place, fitting a straight line is carried out to the coordinate datas of multiple sampled points in first plane, and to obtain first flat Face straight line;The coordinate data of the multiple sampled point is projected respectively in the second plane vertical with the guide rail to be measured, to institute The coordinate data progress fitting a straight line for stating multiple sampled points in the second plane obtains the second plane and straight line;It is flat according to described first Face straight line and second plane and straight line, obtain the error curve of the guide rail to be measured;Choose and contain the flat of the error curve The minimum a pair of parallel line of distance, obtains the linearity of the guide rail to be measured in line.

In terms of existing technologies, the invention has the advantages that:

Guide rail detection method and guide rail detecting system that the present invention is provided, the guide rail detection means is by obtaining to be measured lead The coordinate data of the multiple sampled points pre-set on rail, and the coordinate data of the multiple sampled point is sent to the calculating Machine equipment.The computer equipment receives the coordinate data of the multiple sampled point, judges the number of coordinates of the multiple sampled point According to whether in default coordinate data scope;If the coordinate data is in default coordinate data scope, to the multiple sampling The coordinate data of point carries out linearity calculating, so as to obtain the linearity of the guide rail to be measured, fast and is efficiently led to be measured Rail is detected, time saving and energy saving, and automaticity is high, alleviates the labor intensity of workman.

Brief description of the drawings

In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore is not construed as pair The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this A little accompanying drawings obtain other related accompanying drawings.

A kind of structured flowchart for the guide rail detecting system that Fig. 1 provides for present pre-ferred embodiments;

The structural representation for the guide rail detection means application scenarios that Fig. 2 provides for present pre-ferred embodiments;

The structured flowchart for the computer equipment that Fig. 3 provides for present pre-ferred embodiments;

A kind of schematic flow sheet for the guide rail detection method that Fig. 4 provides for present pre-ferred embodiments;

Fig. 5 is the schematic flow sheet of sub-step that step S210 includes in Fig. 4;

Another schematic flow sheet for the guide rail detection method that Fig. 6 provides for present pre-ferred embodiments;

Fig. 7 is the schematic flow sheet of sub-step that step S209 includes in Fig. 6;

Fig. 8 is the schematic flow sheet of sub-step that step S230 includes in Fig. 6.

Icon:10- guide rail detecting systems;100- guide rail detection means;200- computer equipments;110- guide rails to be measured; 120- locating pieces;130- is straight instrument;140- guide rail slides;150- reflective mirror pedestals;160- reflective mirrors;210- memories;220- Processor;230- communication units.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Generally herein The component of the embodiment of the present invention described and illustrated in place's accompanying drawing can be arranged and designed with a variety of configurations.Therefore, The detailed description of the embodiments of the invention to providing in the accompanying drawings is not intended to limit the model of claimed invention below Enclose, but be merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, those of ordinary skill in the art are not having There is the every other embodiment made and obtained under the premise of creative work, belong to the scope of protection of the invention.

It should be noted that:Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.Meanwhile, the present invention's In description, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relative importance.

Below in conjunction with the accompanying drawings, some embodiments of the present invention are elaborated.It is following in the case where not conflicting Feature in embodiment and embodiment can be mutually combined.

Fig. 1 is refer to, Fig. 1 is a kind of structured flowchart for the guide rail detecting system 10 that present pre-ferred embodiments are provided.Institute Guide rail detecting system 10 is stated including guide rail detection means 100 and computer equipment 200, the guide rail detection means 100 and described Computer equipment 200 is communicated to connect each other.

The guide rail detection means 100 can be used for the linearity for detecting guide rail, so as to carry out follow-up to the guide rail Straightening operation.In the present embodiment, the guide rail may be, but not limited to, machine tool guide rail, conveyer, railroad track Deng.The present embodiment is not specifically limited to the guide rail, and those skilled in the art can apply the guide rail according to actual needs Detection means 100.

The computer equipment 200 can be the arbitrary equipment for realizing the data processing of the embodiment of the present invention and storage (for example, PC (Personal Computer, PC) etc.).

It is appreciated that the structure described in Fig. 1 is only signal, the guide rail detecting system 10 may also include than shown in Fig. 1 More either less components or with the configuration different from shown in Fig. 1.

Referring to Fig. 2, the guide rail detection means 100 includes guide rail 110 to be measured, locating piece 120, straight instrument 130, guide rail Slide 140, reflective mirror pedestal 150 and reflective mirror 160.

Specifically, the guide rail to be measured 110 is arranged on the locating piece 120.The locating piece 120 is used to treat to described Guide rail 110 is surveyed to be positioned and fixed.In the present embodiment, the locating piece 120 can be according to the length of the guide rail 110 to be measured Degree sets multiple.The locating piece 120 can be fixture, in an embodiment of the present embodiment, the locating piece 120 can be V-block.The V-block is applied to the purposes such as detection, line, the positioning of precision instruments, is the important of guide rail detection Instrument.

The straight instrument 130 is arranged on the side of the guide rail to be measured 110, for detecting institute according to optical autocollimating principle State the data of guide rail 110 to be measured.As shown in Fig. 2 the straight instrument 130 is also communicated to connect with the computer equipment 200, it is used for The data of the guide rail 110 to be measured detected are sent to the computer equipment 200 and carry out data processing.Number after processing According to the reference that can be used for the follow-up straightening operation to the guide rail 110 to be measured.

The guide rail slide 140 is arranged on the guide rail to be measured 110, and the guide rail slide 140 to be measured can be led along described The length direction of rail 110 is slided.The reflective mirror pedestal 150 is connected with the guide rail slide 140, can pass through the guide rail slide 140 slide along the guide rail 110 to be measured.

The reflective mirror 160 is connected with the reflective mirror pedestal 150, for reflecting the incidence that the straight instrument 130 is sent Light, and the light path sent to the straight instrument 130 is adjusted.Specifically, the reflective mirror 160 and the reflective mirror pedestal 150 is rotate connection, and the reflective mirror 160 can be rotated relative to the reflective mirror pedestal 150.

Referring to Fig. 3, the computer equipment 200 includes memory 210, processor 220 and communication unit 230.Institute State computer equipment 200 directly or indirectly electrical each other including memory 210, processor 220 and communication unit 230 Connection, to realize the transmission or interaction of data.For example, these elements can pass through one or more communication bus or letter each other Number line, which is realized, to be electrically connected with.

Wherein, the memory 210 may be, but not limited to, random access memory (Random Access Memory, RAM), read-only storage (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM), electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory, EEPROM) etc..Wherein, memory 210 be used for storage program, the processor 220 after execute instruction is received, Perform described program.Further, various input/output devices are coupled to processor 220 and memory by communication unit 230 210, software program and module in above-mentioned memory 210 may also include operating system, and it may include various to be used to manage system The component software of system task (such as memory management, storage device control, power management) and/or driving, and can with it is various hard Part or component software are mutually communicated, so as to provide the running environment of other software component.

The processor 220 can be a kind of IC chip, the disposal ability with signal.Above-mentioned processor 220 can be general processor, including central processing unit (Central Processing Unit, CPU), network processing unit (Network Processor, NP) etc..It can also be digital signal processor (DSP), application specific integrated circuit (ASIC), scene Programmable gate array (FPGA) or other PLDs, discrete gate or transistor logic, discrete hardware group Part.It can realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be with It is microprocessor or the processor 220 can also be any conventional processors etc..

The communication unit 230 is used to set up the computer equipment 200 with the guide rail detection means 100 therebetween Communication connection, to realize the data transfer between the computer equipment 200 and the guide rail detection means 100.

Referring to Fig. 4, a kind of schematic flow sheet for the guide rail detection method that Fig. 4 provides for present pre-ferred embodiments.Institute Method is stated applied to guide rail detecting system 10, the idiographic flow of methods described is as follows:

Step S210, the guide rail detection means 100 obtains the seat of the multiple sampled points pre-set on guide rail 110 to be measured Data are marked, and the coordinate data of the multiple sampled point is sent to the computer equipment 200.

Specifically, referring to Fig. 5, the step S210 include sub-step S211, sub-step S212, sub-step S213 and Sub-step S214.The idiographic flow of the sub-step is as follows:

Sub-step S211, obtains the distance between the reflective mirror 160 and the straight instrument 130 data, by the distance Data are used as the first coordinate data.

In the present embodiment, the straight instrument 130 sends incident ray to the reflective mirror 160, and receives via described The reflection light that reflective mirror 160 reflects, wherein, the incident ray is parallel with the reflection light.Set in the straight instrument 130 Position sensor is equipped with, the position sensor is described reflective for being determined according to the reflection light of the reflective mirror 160 reflection The position of mirror 160, so that the distance between the reflective mirror 160 and the straight instrument 130 data are detected, by described apart from number According to being used as the first coordinate data.Specifically, first coordinate data can be used as seat using at the straight transmitting of instrument 130 light source Origin is marked, then first coordinate data is set to xn, (n=1,2,3 ...).First coordinate data includes described Reflective mirror 160 is in the first coordinate data by n sampled point.

Sub-step S212, obtains first direction angular displacement data of the reflective mirror 160 relative to the straight instrument 130, The first direction angular displacement data are used as the second coordinate data.

Specifically, in the present embodiment, the first encoder is provided with the straight instrument 130, first encoder can For detecting the first direction angular displacement of the relatively described straight instrument 130 in sliding process of reflective mirror 160.Alternatively, The first direction can be used as from the direction parallel with the guide rail 110 to be measured.If the first direction angular displacement data For αn, (n=1,2,3......), then second coordinate data is former as coordinate using at the straight transmitting of instrument 130 light source Point, if second coordinate data is yn, then yn=xntan2αn, (n=1,2,3 ...).

Sub-step S213, obtains second direction angular displacement data of the reflective mirror 160 relative to the straight instrument 130, The second direction angular displacement data as the 3rd coordinate data, wherein, the first direction is vertical with the second direction.

Specifically, in the present embodiment, second encoder is provided with the straight instrument 130, the second encoder can For detecting the second direction angular displacement of the relatively described straight instrument 130 in sliding process of reflective mirror 160.Alternatively, The second direction can be used as from the direction vertical with the guide rail 110 to be measured.If the second direction angular displacement data For βn, (n=1,2,3......), then the 3rd coordinate data is former as coordinate using at the straight transmitting of instrument 130 light source Point, if the 3rd coordinate data is zn, then zn=xntan2βn, (n=1,2,3 ...).

In the above embodiment, it is preferable that the first direction and the second direction are orthogonal, and respectively with it is described Straight instrument 130 is vertical with the range direction of the reflective mirror 160, to form a rectangular coordinate system in space.

Sub-step S214, each adopt is obtained according to first coordinate data, the second coordinate data and the 3rd coordinate data The coordinate data of sampling point.

According to the first coordinate data xn, (n=1,2,3 ...), the second coordinate data yn=xntan2αn, (n=1,2,3 ...) and the 3rd coordinate data zn=xntan2βn, (n=1,2,3 ...), obtain each The coordinate data of sampled point is (xn,yn,zn), (n=1,2,3 ...).

Referring to Fig. 6, methods described also includes:

Step S209, the guide rail detection means 100 adjusts the light path between the guide rail to be measured 110, makes described lead The incident ray that rail detection means 100 is sent is parallel with the reflection light received.

Specifically, referring to Fig. 7, the step S209 includes sub-step S2091, sub-step S2092 and sub-step S2093.The idiographic flow of the sub-step is as follows:

Sub-step S2091, the straight instrument 130 launches incident ray to the reflective mirror 160, and receives via described anti- The reflection light that light microscopic 160 reflects.

Specifically, the straight instrument 130 is provided with transmitting light source, the transmitting light source to the reflective mirror 160 launch into Light is penetrated, the incident direction is acted on by transmitting after reaching the reflective mirror 160, is reflected back to the straight direction of instrument 130 Position sensor in reflection light, the straight instrument 130 receives the reflection light.

Sub-step S2092, the straight instrument 130 senses the position of the reflective mirror 160 according to the transmitting light.

The position sensor judges the position of the reflective mirror 160 by the reflection light received.

Sub-step S2093, according to the position of the reflective mirror 160 sensed, adjusts the position of the reflective mirror 160, So that the incident ray that the straight instrument 130 is sent is parallel with the reflection light received.

According to the position of the reflective mirror 160 sensed, the reflective mirror 160 is adjusted.Specifically, it is described reflective Mirror 160 is connected with the reflective mirror pedestal 150 to rotate, and the reflective mirror 160 can enter relative to the reflective mirror pedestal 150 Row is rotated.By constantly adjusting the position of the reflective mirror 160, until the incident ray that sends of the straight instrument 130 and reception Reflection light it is parallel, the position adjustment of the reflective mirror 160 terminates, carry out next step detection work.

Referring to Fig. 6, step S220, the computer equipment 200 receives the coordinate data of the multiple sampled point, Judge the coordinate data of the multiple sampled point whether in default coordinate data scope.

Specifically, in the present embodiment, the computer equipment 200 receives the coordinate data of the multiple sampled point (xn,yn,zn), (n=1,2,3 ...) after, to the coordinate data (xn,yn,zn), (n=1,2,3 ...) divided Whether analysis, judge the coordinate data of the multiple sampled point in the range of default coordinate data.Specifically, the default seat Mark data area can the precision of the guide rail 110 to be measured set.Alternatively, for high-precision guide rail 110 to be measured, institute It is the guide rail to be measured 110 of low precision in less than or equal to 30 microns to state default coordinate data scope, the default seat It is less than or equal to 100 microns to mark data area.

Step S230, if the coordinate data is in default coordinate data scope, to the number of coordinates of the multiple sampled point According to linearity calculating is carried out, the linearity of the guide rail to be measured 110 is obtained.

Referring to Fig. 8, the step S230 includes sub-step S231, sub-step S232, sub-step S233 and sub-step S234.The idiographic flow of the sub-step is as follows:

Sub-step S231, the place of guide rail to be measured 110 is projected to by the coordinate data of the multiple sampled point respectively In first plane, fitting a straight line is carried out to the coordinate datas of multiple sampled points in first plane, and to obtain the first plane straight Line.

In the present embodiment, the coordinate data (x of the multiple sampled pointn,yn,zn), (n=1,2,3 ...) it is one Spatial data, the multiple spatial data is multiple discrete points on space line, by multiple discrete points to described First plane projection, can obtain discrete point of multiple discrete points in first plane, to many in first plane Individual discrete point carries out two multiplying the Fitting Calculation at first, can obtain the first plane and straight line after fitting a straight line.

Sub-step S232, the coordinate data of the multiple sampled point is projected respectively vertical with the guide rail 110 to be measured In second plane, fitting a straight line is carried out to the coordinate datas of multiple sampled points in second plane, and to obtain the second plane straight Line.

By multiple discrete points to second plane projection, can obtain multiple discrete points in second plane from Multiple discrete points in second plane are carried out two multiplying the Fitting Calculation at first by scatterplot, can obtain the after fitting a straight line Two plane and straight lines.

In the present embodiment, first plane is vertical with second plane.

Sub-step S233, according to first plane and straight line and second plane and straight line, obtains the guide rail to be measured 110 Error curve.

According to obtained first plane and straight line and second plane and straight line, the guide rail to be measured 110 can be obtained The error curve of bending.

Sub-step S234, chooses the minimum a pair of parallel line of distance in the parallel lines for containing the error curve, obtains institute State the linearity of guide rail 110 to be measured.

Specifically, in the present embodiment, found out using minimum area method and contain the multipair parallel two-by-two of the error curve Straight line, a pair of minimum containing parallel lines of selected distance, straight so as to draw from the multipair parallel straight line two-by-two Dimension error.

Specifically, for continuous error curve, minimum, which contains parallel lines, has existence and uniqueness.In the present embodiment A kind of embodiment in, it is possible to use graphing method (it is alternatively possible to using described computer equipment 200) determines minimum range Contain parallel lines.First, high-quality error curve diagram is made.Then, simulation rotation is abreast carried out on error curve diagram. When two parallel lines meet following two conditions, now two parallel lines are minimum containing parallel lines:Two parallel lines will contain mistake Poor curve, the error curve is had between two parallel lines;One in two parallel lines directly with error curve at least Two intersection points, another parallel lines must be positioned between above-mentioned two intersection point with least one intersection point of error curve, and the intersection point.

According to a pair of of the minimum range found containing parallel lines, calculate the minimum range contain for a pair parallel lines it Between distance, the distance is the straightness error in the present embodiment, i.e., the guide rail to be measured 110 need to align it is theoretical away from From.

In summary, the present invention is provided guide rail detection method and guide rail detecting system 10, the guide rail detection means 100 By obtaining the coordinate data of the multiple sampled points pre-set on guide rail 110 to be measured, and by the coordinate of the multiple sampled point Data are sent to the computer equipment 200.The computer equipment 200 receives the coordinate data of the multiple sampled point, sentences Whether the coordinate data of disconnected the multiple sampled point is in default coordinate data scope;If the coordinate data is in default coordinate Data area, the coordinate data to the multiple sampled point carries out linearity calculating, so as to obtain the straight of the guide rail to be measured 110 Dimension, fast and is efficiently detected to guide rail 110 to be measured, time saving and energy saving, and automaticity is high, alleviates the work of workman Intensity.

In several embodiments that the embodiment of the present invention is provided, it should be understood that disclosed system and method, also may be used To realize by another way.System and method embodiment described above is only schematical, for example, in accompanying drawing Flow chart and block diagram show that the system of multiple embodiments according to the present invention, the possibility of method and computer program product are realized Architectural framework, function and operation.At this point, each square frame in flow chart or block diagram can represent device, a program A part for section or code a, part for described device, program segment or code is used to realize defined patrol comprising one or more Collect the executable instruction of function.It should also be noted that in some implementations as replacement, the function of being marked in square frame Can be with different from the order marked in accompanying drawing generation.For example, two continuous square frames can essentially be held substantially in parallel OK, they can also be performed in the opposite order sometimes, and this is depending on involved function.It is also noted that block diagram and/or The combination of each square frame in flow chart and the square frame in block diagram and/or flow chart, can use function as defined in execution or dynamic The special hardware based system made is realized, or can be realized with the combination of specialized hardware and computer instruction.

In addition, each functional device in each embodiment of the invention can integrate to form an independent portion Point or each device individualism, can also two or more devices be integrated to form an independent part.

If the function is realized using in the form of software function device and is used as independent production marketing or in use, can be with It is stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially in other words The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter Calculation machine software product is stored in a storage medium, including some instructions are to cause a computing device (can be personal Computer, electronic equipment, or network equipment etc.) perform all or part of step of each of the invention embodiment methods described.

It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row His property is included, so that process, method, article or equipment including a series of key elements not only include those key elements, and And also including other key elements being not expressly set out, or also include for this process, method, article or equipment institute inherently Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including institute Also there is other identical element in process, method, article or the equipment of stating key element.

The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.

It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.

Claims (10)

1. a kind of guide rail detection method, applied to guide rail detecting system, the guide rail detecting system includes communication link each other The guide rail detection means and computer equipment connect, it is characterised in that methods described includes:
The guide rail detection means obtains the coordinate data of the multiple sampled points pre-set on guide rail to be measured, and will be the multiple The coordinate data of sampled point is sent to the computer equipment;
The computer equipment receives the coordinate data of the multiple sampled point, and judging the coordinate data of the multiple sampled point is It is no in default coordinate data scope;
If the coordinate data carries out linearity meter in default coordinate data scope, the coordinate data to the multiple sampled point Calculate, obtain the linearity of the guide rail to be measured.
2. guide rail detection method according to claim 1, it is characterised in that methods described also includes:
Light path between the guide rail detection means regulation and the guide rail to be measured, the incidence for sending the guide rail detection means Light is parallel with the reflection light received.
3. guide rail detection method according to claim 2, it is characterised in that the guide rail detection means include straight instrument, Guide rail slide, reflective mirror pedestal and reflective mirror, the straight instrument are arranged on the side of the guide rail to be measured, the guide rail slide It is arranged on the guide rail to be measured, the reflective mirror is connected with the reflective mirror pedestal, the guide rail detection means regulation and institute The step of stating the light path between guide rail to be measured includes:
The straight instrument launches incident ray to the reflective mirror, and receives the reflection light via the mirror reflection;
The straight instrument senses the position of the reflective mirror according to the reflection light;
According to the position of the reflective mirror sensed, the position of the reflective mirror is adjusted, so that entering of sending of the straight instrument It is parallel with the reflection light received to penetrate light.
4. guide rail detection method according to claim 3, it is characterised in that the guide rail detection means obtains guide rail to be measured On pre-set multiple sampled points coordinate data the step of include:
The distance between the reflective mirror and straight instrument data are obtained, the range data are regard as the first coordinate data;
Obtain first direction angular displacement data of the reflective mirror relative to the straight instrument, the first direction angular displacement data It is used as the second coordinate data;
Obtain second direction angular displacement data of the reflective mirror relative to the straight instrument, the second direction angular displacement data As the 3rd coordinate data, wherein, the first direction is vertical with the second direction;
The coordinate data of each sampled point is obtained according to first coordinate data, the second coordinate data and the 3rd coordinate data.
5. guide rail detection method according to claim 1, it is characterised in that the number of coordinates to the multiple sampled point Include according to the step of carrying out linearity calculating, the linearity for obtaining the guide rail to be measured:
The coordinate data of the multiple sampled point is projected to respectively in the first plane where the guide rail to be measured, to described The coordinate data of multiple sampled points in one plane carries out fitting a straight line and obtains the first plane and straight line;
The coordinate data of the multiple sampled point is projected respectively in the second plane vertical with the guide rail to be measured, to described The coordinate data of multiple sampled points in two planes carries out fitting a straight line and obtains the second plane and straight line;
According to first plane and straight line and second plane and straight line, the error curve of the guide rail to be measured is obtained;
The minimum a pair of parallel line of distance in the parallel lines for containing the error curve is chosen, the straight line of the guide rail to be measured is obtained Degree.
6. a kind of guide rail detecting system, the guide rail detecting system includes guide rail detection means and the meter communicated to connect each other Calculate machine equipment, it is characterised in that:
The guide rail detection means, the coordinate data of the multiple sampled points pre-set for obtaining on guide rail to be measured, and by institute The coordinate data for stating multiple sampled points is sent to the computer equipment;
The computer equipment, the coordinate data for receiving the multiple sampled point, judges the coordinate of the multiple sampled point Whether data are in default coordinate data scope;If the coordinate data is adopted in default coordinate data scope to the multiple The coordinate data of sampling point carries out linearity calculating, obtains the linearity of the guide rail to be measured.
7. guide rail detecting system according to claim 6, it is characterised in that:
The guide rail detection means, is additionally operable to the light path between regulation and the guide rail to be measured, sends out the guide rail detection means The incident ray gone out is parallel with the reflection light received.
8. guide rail detecting system according to claim 7, it is characterised in that the guide rail detection means include straight instrument, Guide rail slide, reflective mirror pedestal and reflective mirror, the straight instrument are arranged on the side of the guide rail to be measured, the guide rail slide It is arranged on the guide rail to be measured, the reflective mirror is connected with the reflective mirror pedestal:
The straight instrument, for launching incident ray to the reflective mirror, and receives the reflected light via the mirror reflection Line;The position of the reflective mirror is sensed according to the reflection light;According to the position of the reflective mirror sensed, regulation is described The position of reflective mirror, so that the incident ray that the straight instrument is sent is parallel with the reflection light received.
9. guide rail detecting system according to claim 8, it is characterised in that:
The computer equipment, is additionally operable to obtain the distance between the reflective mirror and straight instrument data, by the distance Data are used as the first coordinate data;First direction angular displacement data of the reflective mirror relative to the straight instrument are obtained, it is described First direction angular displacement data are used as the second coordinate data;Obtain second direction angle of the reflective mirror relative to the straight instrument Displacement data, the second direction angular displacement data as the 3rd coordinate data, wherein, the first direction and the second party To vertical;The number of coordinates of each sampled point is obtained according to first coordinate data, the second coordinate data and the 3rd coordinate data According to.
10. guide rail detecting system according to claim 6, it is characterised in that:
The computer equipment, is additionally operable to project to the coordinate data of the multiple sampled point where the guide rail to be measured respectively The first plane on, fitting a straight line is carried out to the coordinate datas of multiple sampled points in first plane, and to obtain the first plane straight Line;The coordinate data of the multiple sampled point is projected respectively in the second plane vertical with the guide rail to be measured, to described The coordinate data of multiple sampled points in two planes carries out fitting a straight line and obtains the second plane and straight line;It is straight according to first plane Line and second plane and straight line, obtain the error curve of the guide rail to be measured;Choose the parallel lines for containing the error curve The minimum a pair of parallel line of middle distance, obtains the linearity of the guide rail to be measured.
CN201710048235.1A 2017-01-20 2017-01-20 Guide rail detection method and system CN107063136A (en)

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CN102278957A (en) * 2011-07-05 2011-12-14 上海市安装工程有限公司 Positioning and measuring tool and method for guide rail of high-accuracy and long-distance machine tool
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