CN113916108B - Multi-geometric-precision composite detection system and method - Google Patents
Multi-geometric-precision composite detection system and method Download PDFInfo
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- 238000013480 data collection Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000005086 pumping Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
- G01B21/24—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes for testing alignment of axes
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
- G01B5/201—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures for measuring roundness
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses a multi-geometric-precision composite detection system and a method. Comprising the following steps: the positioning mechanism comprises a cylindrical guide rail, a first disc, a second disc, three supporting legs and three miniature electromagnetic meter bases, and the movement mechanism comprises a synchronous belt assembly, a square supporting plate, a first L supporting plate, a second L supporting plate, a first motor and a second motor. The accurate and rapid positioning of the detection device is realized through the three support legs and the electromagnetic gauge stand, the automatic acquisition of the detection unit data is realized through the motor, the synchronous belt assembly and the cylindrical guide rail, and the problem that the multi-geometric precision of the water slot hole of the concrete pumping system cannot be compositely detected is solved by combining the coaxiality, the roundness, the straightness and the parallelism calculation method. The invention reduces the detection cost, improves the detection efficiency and is more suitable for workshops.
Description
Technical Field
The invention relates to a multi-geometric-precision composite detection system and a method, and belongs to the technical field of hole detection.
Background
The concrete pumping system is a general core component of the concrete machinery, and the manufacturing precision of the concrete pumping system directly influences the service performance of products. Poor manufacturing quality and consistency can seriously affect the assembly coaxiality of the pumping system, lead to eccentric wear of the piston, not only increase the after-sales maintenance cost, but also lead to uncompensated replacement of the pumping system, vehicle withdrawal and loss of customers. The water tank is used as a core component of the pumping system, the coaxiality, roundness, straightness and parallelism of a water tank hole directly affect the coaxiality quality of assembly, a laser tracker and large three-coordinate are mainly adopted at home and abroad to detect the coaxiality, roundness, straightness and parallelism of a hole system, the detection efficiency is low, the cost is high, the detection is only suitable for item-by-item selective detection, and the detection operation is complicated and takes longer by adopting a mode of respectively detecting two holes, so that the processing beat of a production workshop cannot be met, the product quality is seriously limited to be improved, and the intelligent manufacturing transformation and upgrading are not facilitated. Therefore, development of a simple and convenient multi-geometric precision detection system and method suitable for field use, particularly a composite detection system comprising coaxiality, roundness, straightness and parallelism, is urgent.
Disclosure of Invention
The invention aims to provide a multi-geometric-precision composite detection system and method, which are used for solving the problems that in the prior art, three-coordinates and a laser tracker are adopted to detect coaxiality, roundness, straightness and parallelism of a water tank hole, the cost of a purchasing machine is high, the detection efficiency is low, the purchasing machine is only suitable for spot inspection and cannot realize full inspection, and the detection operation is complicated and the time consumption is longer due to the mode of respectively detecting two holes.
In order to solve the technical problems, the invention adopts the following technical scheme:
in one aspect, a multi-geometry precision composite detection system includes: the positioning mechanism comprises a cylindrical guide rail, a first disc, a second disc and three miniature electromagnetic meter bases, wherein the cylindrical guide rail consists of a cylinder and linear guide rails positioned on two sides of the cylinder, the axis of the cylinder is parallel to the axis of a hole system of a workpiece to be detected, one end of the cylinder is sleeved in the first disc, the second disc is rotationally connected with the first disc, three supporting legs are uniformly distributed on the circumference of the second disc, the end part of each supporting leg is provided with L parts for enabling the second disc to be clamped on the inner wall and the side face of the workpiece to be detected, and each L part is provided with one miniature electromagnetic meter base; the motion mechanism comprises a square support plate, an L support plate I, an L support plate II, a first driving mechanism and a second driving mechanism, wherein the square support plate is movably arranged on the linear guide rail, and the first driving mechanism drives the square support plate to linearly move along the axis direction of the cylinder; the second driving mechanism drives the cylindrical guide rail to rotate around the axis of the hole system of the workpiece to be tested; the first L supporting plate is connected with the side face of one end of the cylinder, the second L supporting plate is connected with the bottom face of the other end of the cylinder, and the first L supporting plate is arranged in parallel with the second L supporting plate; the detection unit comprises a detection unit I, a detection unit II and a detection unit III, wherein the detection unit I is arranged on the square support plate, the detection unit II is arranged on the L support plate I, the detection unit III is arranged on the L support plate II, and the detection unit I, the detection unit II and the detection unit III are all electrically connected with the industrial control computer.
Further, the first driving mechanism comprises a synchronous belt assembly and a first motor, the synchronous belt assembly is arranged in the linear guide rail, the square support plate is arranged on the synchronous belt assembly, and the first motor provides power for the synchronous belt assembly to drive the square support plate to linearly move along the direction of the axis of the cylinder; the second driving mechanism comprises a second motor, and the second motor is connected with one end of the cylinder to drive the cylinder guide rail to rotate around the axis of the hole system of the workpiece to be tested.
Further, the cylindrical guide rail further comprises a manual rocking handle, and the manual rocking handle is arranged on the bottom surface of one end of the cylinder.
Further, a plurality of positioning holes are formed in the square support plate, and the first detection unit is installed on the square support plate through the positioning holes.
Further, the motion mechanism further comprises a baffle plate, and the baffle plate is arranged at the tail part of the linear guide rail.
Further, the second L-shaped support plate is detachably connected with the bottom surface of the other end of the cylinder.
Further, the second disc is connected with the first disc through a rolling cylinder.
Further, the industrial personal computer includes:
the user login module is used for identifying the identity of the operator;
the parameter setting module is used for setting the rotation speed of the cylinder, the rotation angle of the cylinder, the detection residence time, the moving speed of the square support plate and the number of detection points;
and the production information module is used for inputting the information of the detection personnel, the source manufacturer of the raw materials of the workpiece to be detected, the size of the workpiece to be detected and the bar code of the workpiece to be detected.
The process detection module is used for realizing automatic detection, manual detection, micro electromagnetic meter seat activation, graphical display of detection process, alarm and data processing and storage;
the query analysis module is used for realizing the query and analysis of the data, displaying the queried data and independently storing the queried data;
and a data uploading module for uploading the detection data to the MES system (production process execution system, manufacturing Execution System).
Further, the industrial personal computer includes: the power supply, switch, start button and scram button, first motor and second motor with the power is connected, the switch control the power supply, start button with scram button arranges in on the industrial computer panel.
In another aspect, the present invention provides a multi-geometric precision composite detection method, which is performed by using the system, and the method includes:
placing a multi-geometric-precision composite detection system in a detection hole of a workpiece to be detected, clamping three support legs on a first hole of the workpiece to be detected through L parts of the three support legs, activating a miniature electromagnetic gauge stand to enable the three support legs to suck the workpiece to be detected, and placing a first detection unit at one end face of the hole of the workpiece to be detected;
setting a cylinder rotation speed, a cylinder rotation angle, a detection residence time, a square support plate movement speed and a detection point number through an industrial personal computer, and inputting detection personnel information, a source manufacturer of a workpiece raw material to be detected, the size of the workpiece to be detected and a bar code of the workpiece to be detected;
the second driving mechanism is rotated, when the rotation starts, the cylindrical guide rail is rotated by 0 DEG, and the first detection unit detect a single bodyThe second detection unit and the third detection unit start to collect data, and then the first detection unit, the second detection unit and the third detection unit collect data every time the cylindrical guide rail rotates by a set angle until the cylindrical guide rail rotates by 360 degrees, and the circumferential data collection at the first section is finished; the first driving mechanism is started to drive the detection unit I on the square supporting plate to move in the hole I along the direction of the linear guide railL 1 /nWherein (2) is a distance ofL 1 For a width of the hole to be the same,nthe detection times are; the second driving mechanism rotates, and the circumference data acquisition process … … is repeated until the moving distance isL 1 ；
The first driving mechanism drives the detection unit on the square support plate to move along the direction of the linear guide railL 2 To the second hole of the first hole,L 2 repeating the hole I detection action in the hole II for the distance between the hole I and the hole II until the data acquisition is completed;
and calculating coaxiality, roundness, straightness and parallelism of the hole system of the workpiece to be detected through the industrial personal computer according to the data acquired by the first detection unit, the second detection unit and the third detection unit.
Further, the method for calculating the coaxiality comprises the following steps: calculating the coordinates of the actual center points of the two holes in each section according to the section circumference data, and calculating the least square center line where each circle center is located according to a least square method, wherein the coaxiality is 2 times of the maximum value of the radial distance from the detection point to the least square center line;
the roundness calculation method comprises the following steps: according to the maximum inscribed circle method calculation principle, the circle center of the maximum inscribed circle is obtained by using the section circumference data, so that the difference between the maximum value and the minimum value of the distances from each point of the circumference to the circle center on the section is calculated, and the roundness is the maximum value of the difference value of each section;
the straightness calculation method comprises the following steps: taking the axial distance of the hole as an x axis and the vertical upward direction of the end face as a y axis, establishing an xoy coordinate system, calculating the coordinates of the center points of the actual cross sections of the two holes according to the circumference data of the cross sections, and calculating the least square center line of each circle center according to a least square method, wherein the straightness is the difference value between the maximum offset and the minimum offset of each measuring point in the y direction of the least square center line;
the calculating method of the parallelism comprises the following steps: the parallelism is the difference between the maximum value and the minimum value of the difference between the second detection indication of the detection unit and the third detection indication of the detection unit.
Further, the multi-geometric precision composite detection method further comprises the following steps: and uploading the detection data to an MES system.
Compared with the prior art, the invention has the beneficial technical effects that:
(1) The invention integrates a hole system coaxiality, roundness, straightness and parallelism composite detection system, realizes automation of the detection process, reduces the detection cost and improves the detection efficiency; the detection system can screen out abnormal products, avoids risks after the products are put into the market, and improves the quality of the whole product;
(2) The design of the three support legs and the magnetic gauge stand realizes the accurate and quick positioning of the detection device, and the design of the motor, the synchronous belt component and the cylindrical guide rail realizes the automatic control of the movement and the acquisition position of the detection unit;
(3) A user login module in the software system gives authority to an operator; the parameter setting module can adjust various workpiece detection process parameters; the production information module records personnel and workpiece information, and is helpful for tracing work to develop; the process detection module realizes one-key detection and process digital display; the query analysis module can help the manager to quickly judge and decide;
(4) The invention has the advantages of simple structure, easy realization of functions, wide application range and convenient positioning.
Drawings
FIG. 1 is a diagram of the overall structure of a multi-geometry precision composite detection system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a detection device in a multi-geometry precision composite detection system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of software system modules in a multi-geometry precision composite detection system according to an embodiment of the present invention.
Wherein, 1, a positioning mechanism, 2, a movement mechanism, 3, a detection unit, 4, a workpiece to be detected, 5, an industrial control computer, 6, a software system, 11, a cylindrical guide rail, 12, a first disk, 13, a rolling cylinder, 14, a second disk, 15, a miniature electromagnetic gauge stand, 16, a supporting leg, 17, a baffle plate, 111, a cylinder, 112, a linear guide rail, 113, a manual rocking handle, 21 synchronous belt assembly 22 square support plate 23L support plate one 24L support plate two 25 first motor 26 second motor 31 detection unit one, 32, 33, 41, 42, 51, 52, cable, 53, switch, 54, start button, 55, emergency stop button.
Detailed Description
The invention is further described below in connection with specific embodiments. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As described above, for coaxiality, roundness, straightness and parallelism of the water tank holes, common detection methods, such as three-coordinate and laser tracker, have high purchase cost and low detection efficiency, are only suitable for spot inspection, cannot realize full inspection, and adopt a two-hole detection mode to make detection operation complicated and time-consuming longer, cannot meet the processing beat of a production workshop, and obviously do not meet the lean manufacturing requirements of enterprises.
To this end, an embodiment of the present invention provides a multi-geometric precision composite detection system, as shown in fig. 1 and 2, including: the device comprises a positioning mechanism 1, a motion mechanism 2, a detection unit 3 and an industrial personal computer 5.
The positioning mechanism 1 comprises a cylindrical guide rail 11, a first disc 14, a second disc 12, three miniature electromagnetic gauges 15 and three supporting legs 16.
The cylindrical guide rail 11 consists of a cylinder 111 and linear guide rails 112 positioned on two sides of the cylinder 111, wherein the axis of the cylinder 111 and the linear guide rails 112 are parallel to the axis of the hole system of the workpiece 4 to be tested.
One end of the cylinder 111 is sleeved in the first disc 14, and the second disc 12 is rotatably connected with the first disc 14, so that the cylinder guide rail 11 rotates while the three supporting legs 16 are kept motionless.
In one embodiment, the second disc 12 is connected to the first disc 14 by a rolling cylinder 13.
The three supporting legs 16 are uniformly distributed on the circumference of the second disc 12, and the end part of each supporting leg 16 is provided with an L part for enabling the supporting legs 16 to be clamped on the inner wall and the side face of one end hole of the workpiece 4 to be detected, so that the three supporting legs 16 can be positioned on the inner hole of the workpiece 4 to be detected.
The three micro electromagnetic meter seats 15 are respectively arranged on the L parts of the three supporting legs 16, so that the workpiece 4 to be detected is sucked tightly by activating the micro electromagnetic meter seats, and the detection device and the workpiece 4 to be detected are rapidly positioned.
In one embodiment, the positioning mechanism 1 further includes a baffle 17, where the baffle 17 is disposed at the tail of the linear guide rail 112, and is used to prevent the square support plate 22 from falling off during the detection process.
As shown in fig. 2, the movement mechanism 2 includes a timing belt assembly 21, a square support plate 22, an L support plate one 23, an L support plate two 24, a first motor 25, and a second motor 26.
The timing belt assembly 21 is disposed in the linear guide 112, and the square support plate 22 is disposed on the timing belt assembly 21.
The first motor 25 is connected with the synchronous belt assembly 21, and provides power for the synchronous belt assembly 21 to drive the square support plate 22 to linearly move along the axis direction of the cylinder 111.
The second motor 26 drives the cylindrical guide rail 11 to rotate around the axis of the hole system of the workpiece 4 to be measured.
The first L-shaped support plate 23 is connected with one end side surface of the cylinder 111, and the second L-shaped support plate 24 is connected with the bottom surface of the other end of the cylinder 111. In one embodiment, the second L-shaped support plate 24 is connected to the bottom surface of the other end of the cylinder 111 in a riveting manner or in another detachable manner, so as to facilitate detachment or installation.
The first L-shaped support plate 23 and the second L-shaped support plate 24 are arranged in parallel.
The detection unit 3 includes a detection unit one 31, a detection unit two 32, and a detection unit three 33.
The first detection unit 31 is disposed on the square support plate 22 and moves along with the square support plate 22. The second detection unit 32 is disposed on the first L-shaped support plate 23, and the third detection unit 33 is disposed on the second L-shaped support plate 24.
In one embodiment, the square support plate 22 is provided with a plurality of positioning holes, through which the first detection unit 31 is mounted on the square support plate 22, and the positioning holes can conveniently adjust the position of the first detection unit 31.
The first detection unit 31, the second detection unit 32 and the third detection unit 33 are all electrically connected with the industrial personal computer 5.
The first detection unit 31, the second detection unit 32 and the third detection unit 33 can be displacement sensors, dial indicators and the like. The first detection unit 31 can realize coaxiality, roundness and straightness detection, and the second detection unit 32 and the third detection unit 33 can realize two-end-face parallelism detection.
In another embodiment, the cylindrical guide 11 further comprises a manual crank 113, and the manual crank 113 is disposed on a bottom surface of one end of the cylinder 111, and the manual rotation of the cylindrical guide 11 can be achieved by operating the manual crank.
As shown in fig. 1, the industrial personal computer 5 includes a power supply 51, a cable 52, a switch 53, a start button 54, and an emergency stop button 55. The first motor 25 and the second motor 26 are connected with a power supply 51 in the industrial personal computer through a cable 52. The switch 53 controls the power supply 51 to supply power. The start button 54 is disposed on the panel of the industrial personal computer, and can realize one-key detection. The emergency stop button 55 is disposed on the industrial personal computer panel, and can rapidly stop the detection operation.
The industrial personal computer 5 is loaded with a software system, as shown in fig. 3, the software system includes: the system comprises a user login module, a parameter setting module, a production information module, a process detection module, a query analysis module and a data uploading module.
And the user login module is used for identifying the identity of the operator and prohibiting the non-operator from using the equipment.
The parameter setting module comprises a cylinder rotating speed, a cylinder rotating angle, a detection residence time, an in-hole synchronous belt traveling speed, an out-hole synchronous belt traveling speed, a detection point number and other modules, and is convenient for later detection parameters to be modified according to the actual workpiece size. The parameter setting module can be activated only by permission, and a non-operator cannot modify related detection parameters.
And the production information module is used for inputting information of a detector, a source manufacturer of a workpiece raw material to be detected, the size of the workpiece to be detected, a bar code of the workpiece to be detected and the like, so that the rapid development and tracing work is facilitated.
The process detection module comprises automatic detection, manual detection, electromagnetic gauge stand activation, graphical display of detection process, alarm, data processing and storage functions. And the automatic detection function can realize one-key detection. When the manual detection function is used, manual control is achieved by a manual crank. When the electromagnetic gauge stand is activated, the electromagnetic gauge stand has magnetism and is used for sucking a workpiece, so that accurate positioning of the device is facilitated; when the electromagnetic meter seat is not activated, the magnetism of the electromagnetic meter seat disappears, so that the device is convenient to install and uninstall. The alarm function is used for timely popping up alarm information when fault information occurs by judging the running state of the detection device and the abnormality of the workpiece to be detected, so that an operator can conveniently and timely make correct judgment, and the device is overhauled or the workpiece is reworked.
The query analysis module comprises a table query and SPC graph query module. The form query module displays the queried data in a form of a form through time query, personnel query and workpiece query modes, and stores the queried data independently. The SPC graph inquiry module displays the processing process capability of a certain model in a certain period of time in a graph form, so that whether the data are normal or not can be conveniently analyzed, and when abnormal point data are found, the occurrence reason of the abnormal condition is timely analyzed and improved.
And the data uploading module is used for uploading the detection data to the MES system.
In another embodiment, a multi-geometric precision composite detection method includes:
step 1, placing a detection device in a detection hole of a workpiece 4 to be detected, wherein three support legs 16 are clamped on a first hole 41 of the workpiece 4 to be detected through L parts of the support legs, activating a miniature electromagnetic gauge stand 15 to enable the miniature electromagnetic gauge stand to suck the workpiece 4 to be detected, and placing a first detection unit 31 at the end face of the first hole 41 of the workpiece 4 to be detected;
step 2, setting a cylinder rotation speed, a cylinder rotation angle, a detection stay time, an in-hole synchronous belt traveling speed, an out-hole synchronous belt traveling speed and a detection point number through an industrial personal computer 5, and inputting detection personnel information, a source manufacturer of a workpiece raw material to be detected, the size of the workpiece to be detected and a bar code of the workpiece to be detected;
specifically, a user login module in a software system enters a parameter setting module to set parameters, wherein the parameters comprise a cylinder rotation speed, a cylinder rotation angle, a detection stay time, an in-hole synchronous belt running speed, an out-hole synchronous belt running speed, detection points and the like; inputting information of a detector, a source manufacturer of raw materials of the workpiece to be detected, the size of the workpiece to be detected and a bar code of the workpiece to be detected through a production information module; and activating the electromagnetic meter seat in the process detection module to select an automatic detection mode.
Step 3, the second motor 26 is rotated, at this time, the first detection unit 31, the second detection unit 32 and the third detection unit 33 start to collect data when the cylindrical guide rail 11 rotates by 0 degrees, and then the first detection unit 31, the second detection unit 32 and the third detection unit 33 collect data when the cylindrical guide rail 11 rotates by a set angle alpha, until the cylindrical guide rail 11 rotates by 360 degrees, and the circumferential data collection at the first section is finished; the first motor 25 rotates, and the synchronous belt assembly 21 drives the first detection unit 31 on the square support plate 22 to move in the first hole 41 along the direction of the linear guide rail 112L 1 /nDistance of [ (]L 1 For the width of the first hole 41,nfor the number of detections); the second motor 26 rotates, and the circumference data acquisition process … … is repeated until the moving distance isL 1 ；
Step 4, the first motor 25 rotates, and the timing belt assembly 21 drives the first detection unit 31 on the square support plate 22 to move along the direction of the linear guide rail 112L 2 Up to hole two 42%L 2 Distance between the first hole 41 and the second hole 42), repeating the first hole detection action in the second hole 42 until the value is completely taken, and retracting the first detection unit 31 to the detection initial position;
step 5, calculating coaxiality, roundness, straightness and parallelism of the hole system of the workpiece to be detected according to the data acquired by the first detection unit 31, the second detection unit 32 and the third detection unit 33;
specifically, the method for calculating the coaxiality comprises the following steps: calculating the actual center point (x) of each section of the two holes by using the section circumference data i ，y i ) And calculating the least square center line where each circle center is located according to a least square method, wherein the coaxiality is 2 times of the maximum value of the radial distance from the detection point to the least square center line.
The roundness calculation method comprises the following steps: according to the maximum inscribed circle method calculation principle, the circle center of the maximum inscribed circle is obtained by the section circumference data, so that the difference between the maximum value and the minimum value of the distances from each point of the circumference to the circle center on the section is calculated, and the roundness is the maximum value of the difference value of each section.
The straightness calculation method comprises the following steps: taking the axial distance of the holes as an x axis and the vertical upward direction of the end face as a y axis, establishing an xoy coordinate system, and calculating the actual center point (x) of each section of the two holes by using section circumference data i ，y i ) Calculating the least square center line where each circle center is located according to a least square method, wherein the straightness is the difference value between the maximum offset and the minimum offset in the y direction from each measuring point to the least square center line;
the calculation method of the parallelism comprises the following steps: the second detection unit 32 detects the indicator as M1, the third detection unit 33 detects the indicator as M2, and the parallelism is the difference between the maximum value and the minimum value of the difference between M1 and M2.
And step 6, uploading the detection data to an MES system.
By communicating the inspection data with the MES system, the intelligent manufacturing process is facilitated.
Finally, after detecting a plurality of workpieces, the analysis module can be queried to retrieve and analyze data.
According to the invention, the accurate and rapid positioning of the detection device is realized through the brand new design of the three-support leg and the magnetic gauge stand, the automatic acquisition of the detection unit data is realized through the motor, the synchronous belt assembly and the cylindrical guide rail, and the problem that the multi-geometric precision of the water slot hole of the concrete pumping system cannot be compositely detected is solved by combining the coaxiality, roundness, straightness and parallelism calculation methods. Meanwhile, the invention reduces the detection cost, improves the detection efficiency, and is more suitable for workshops.
The present invention has been disclosed in the preferred embodiments, but the invention is not limited thereto, and the technical solutions obtained by adopting equivalent substitution or equivalent transformation fall within the protection scope of the present invention.
Claims (11)
1. A multiple geometry precision composite detection system, comprising: the positioning mechanism (1) comprises a cylindrical guide rail (11), a first disc (14), a second disc (12) and three miniature electromagnetic meter bases (15), wherein the cylindrical guide rail (11) consists of a cylinder (111) and linear guide rails (112) positioned on two sides of the cylinder (111), the axis of the cylinder (111) is parallel to the hole axis of a workpiece (4) to be detected, one end of the cylinder (111) is sleeved in the first disc (14), the second disc (12) is rotationally connected with the first disc (14), three supporting legs (16) are uniformly distributed on the circumference of the second disc (12), the end part of each supporting leg (16) is provided with L parts which are used for enabling the end part of the supporting leg to be clamped on the inner wall and the side face of the workpiece (4) to be detected, and each L part is provided with one miniature electromagnetic meter base (15); the motion mechanism (2) comprises a square support plate (22), an L support plate I (23), an L support plate II (24), a first driving mechanism and a second driving mechanism; the square support plate (22) is movably arranged on the linear guide rail (112), and the first driving mechanism drives the square support plate (22) to linearly move along the axial direction of the cylinder (111); the second driving mechanism drives the cylindrical guide rail (11) to rotate around the hole system axis of the workpiece (4) to be tested; the first L-shaped support plate (23) is connected with one end side surface of the cylinder (111), the second L-shaped support plate (24) is connected with the bottom surface of the other end of the cylinder (111), and the first L-shaped support plate (23) and the second L-shaped support plate (24) are arranged in parallel; the detection unit (3) comprises a detection unit I (31), a detection unit II (32) and a detection unit III (33), wherein the detection unit I (31) is arranged on the square support plate (22), the detection unit II (32) is arranged on the L support plate I (23), the detection unit III (33) is arranged on the L support plate II (24), and the detection unit I (31), the detection unit II (32) and the detection unit III (33) are all electrically connected with the industrial personal computer (5).
2. The multi-geometric precision composite detection system according to claim 1, wherein the first driving mechanism comprises a synchronous belt assembly (21) and a first motor (25), the synchronous belt assembly (21) is arranged in the linear guide rail (112), the square support plate (22) is arranged on the synchronous belt assembly (21), and the first motor (25) provides power for the synchronous belt assembly (21) to drive the square support plate (22) to linearly move along the axial direction of the cylinder (111); the second driving mechanism comprises a second motor (26), and the second motor (26) is connected with one end of the cylinder (111) to drive the cylinder guide rail (11) to rotate around the hole system axis of the workpiece (4) to be tested.
3. A multi-geometry precision compound detection system according to claim 1, wherein the cylindrical guide rail (11) further comprises a manual crank (113), the manual crank (113) being provided on a bottom surface of one end of the cylinder (111).
4. The multi-geometric precision composite detection system according to claim 1, wherein a plurality of positioning holes are formed in the square support plate (22), and the first detection unit (31) is mounted on the square support plate (22) through the positioning holes.
5. The multi-geometric precision composite detection system according to claim 1, wherein the movement mechanism (2) further comprises a baffle plate (17), and the baffle plate (17) is arranged at the tail of the linear guide rail (112).
6. A multi-geometric precision composite detection system according to claim 1, wherein the second L-shaped support plate (24) is detachably connected to the bottom surface of the other end of the cylinder (111).
7. A multi-geometry precision composite inspection system according to claim 1, characterized in that the second disk (12) is connected to the first disk (14) by a rolling cylinder (13).
8. The multi-geometric precision composite detection system according to claim 1, wherein the industrial personal computer (5) comprises:
the user login module is used for identifying the identity of the operator;
the parameter setting module is used for setting the rotation speed of the cylinder (111), the rotation angle of the cylinder (111), the detection residence time, the moving speed of the square support plate (22) and the number of detection points;
the production information module is used for inputting information of a detector, a source manufacturer of raw materials of the workpiece to be detected, the size of the workpiece to be detected and a bar code of the workpiece to be detected;
the process detection module is used for realizing automatic detection, manual detection, micro electromagnetic meter seat activation, graphical display of detection process, alarm and data processing and storage;
the query analysis module is used for realizing the query and analysis of the data, displaying the queried data and independently storing the queried data;
and the data uploading module is used for uploading the detection data to the MES system.
9. A multi-geometry precision composite detection system according to claim 2, characterized in that the industrial personal computer (5) comprises: the power supply device comprises a power supply (51), a switch (53), a start button (54) and an emergency stop button (55), wherein the first motor (25) and the second motor (26) are connected with the power supply (51), the switch (53) controls the power supply (51) to supply power, and the start button (54) and the emergency stop button (55) are arranged on a panel of the industrial personal computer (5).
10. A multi-geometric precision composite detection method using the system of claim 1, comprising:
placing the multi-geometric-precision composite detection system in a detection hole of a workpiece (4) to be detected, clamping three support legs (16) on a first hole (41) of the workpiece (4) to be detected through L parts of the three support legs, activating a miniature electromagnetic gauge stand (15) to enable the three support legs (16) to be sucked to the workpiece (4) to be detected, and placing a first detection unit (31) at the end face of the first hole (41) of the workpiece (4) to be detected;
setting a cylinder rotation speed, a cylinder rotation angle, a detection residence time, a square support plate (22) moving speed and a detection point number through an industrial personal computer (5), and inputting detection personnel information, a workpiece raw material source manufacturer to be detected, a workpiece size to be detected and a workpiece bar code to be detected;
the second driving mechanism is rotated, when the rotation starts, the first detection unit (31), the second detection unit (32) and the third detection unit (33) start to collect data, and then the first detection unit (31), the second detection unit (32) and the third detection unit (33) collect data every time the first detection unit (31), the second detection unit (32) and the third detection unit (33) rotate for a set angle until the first detection unit (11) rotates for 360 degrees, and the circumferential data collection at the first section is finished; the first driving mechanism is started to drive the detection unit I (31) on the square supporting plate (22) to move in the hole I (41) along the direction of the linear guide rail (112)L 1 /nWherein (2) is a distance ofL 1 Is the width of the first hole (41),nthe detection times are; the second driving mechanism rotates, and the circumference data acquisition process … … is repeated until the moving distance isL 1 ；
The first driving mechanism drives the first detection unit (31) on the square supporting plate (22) to move along the direction of the linear guide rail (112)L 2 To a second hole (42),L 2 repeating the detection action of the first hole (41) in the second hole (42) for the distance between the first hole (41) and the second hole (42) until the data acquisition is completed;
and calculating the coaxiality, roundness, straightness and parallelism of the hole system of the workpiece (4) to be measured through the industrial personal computer (5) according to the data acquired by the first detection unit (31), the second detection unit (32) and the third detection unit (33).
11. The multi-geometric precision composite detection method according to claim 10, wherein the coaxiality calculating method is as follows: calculating the coordinates of the actual center points of the two holes in each section according to the section circumference data, and calculating the least square center line where each circle center is located according to a least square method, wherein the coaxiality is 2 times of the maximum value of the radial distance from the detection point to the least square center line;
the roundness calculation method comprises the following steps: according to the maximum inscribed circle method calculation principle, the circle center of the maximum inscribed circle is obtained by using the section circumference data, so that the difference between the maximum value and the minimum value of the distances from each point of the circumference to the circle center on the section is calculated, and the roundness is the maximum value of the difference value of each section;
the straightness calculation method comprises the following steps: taking the axial distance of the hole as an x axis and the vertical upward direction of the end face as a y axis, establishing an xoy coordinate system, calculating the coordinates of the center points of the actual cross sections of the two holes according to the circumference data of the cross sections, and calculating the least square center line of each circle center according to a least square method, wherein the straightness is the difference value between the maximum offset and the minimum offset of each measuring point in the y direction of the least square center line;
the calculating method of the parallelism comprises the following steps: the parallelism is the difference between the maximum value and the minimum value of the difference between the detection indication of the second detection unit (32) and the detection indication of the third detection unit (33).
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