CN112098435A - Automatic detection equipment and visual calibration detection method - Google Patents
Automatic detection equipment and visual calibration detection method Download PDFInfo
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- CN112098435A CN112098435A CN202011047641.4A CN202011047641A CN112098435A CN 112098435 A CN112098435 A CN 112098435A CN 202011047641 A CN202011047641 A CN 202011047641A CN 112098435 A CN112098435 A CN 112098435A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
- G01N21/95607—Inspecting patterns on the surface of objects using a comparative method
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
- G01N21/95607—Inspecting patterns on the surface of objects using a comparative method
- G01N2021/95615—Inspecting patterns on the surface of objects using a comparative method with stored comparision signal
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Abstract
The invention aims to provide automatic detection equipment and a visual calibration detection method, which have low labor intensity and high overhaul efficiency and quality. The automatic detection equipment comprises a two-axis driving mechanism, a test module and a product clamp, wherein the test module comprises a fixed frame, a plurality of conduction pressing assemblies and a vision module, the vision module is used for carrying out vision identification and position calibration on a probe of a product to be detected to obtain the type of the probe, the conduction pressing assemblies are matched with the product clamp to detect the elastic value of a spring arranged in the probe and the resistance value of the probe, and then the damaged probe after long-term use is detected; the vision calibration detection method is used for identifying the type of the probe and detecting the structure of the probe based on the automatic detection equipment, and calibrating the probe which does not meet the use requirement to realize quick and accurate maintenance. The invention is applied to the technical field of detection equipment.
Description
Technical Field
The invention is applied to the technical field of detection equipment, and particularly relates to automatic detection equipment and a visual calibration detection method.
Background
The electronic product is usually internally provided with a circuit board as a carrier of an internal control circuit, the circuit board comprises a printed circuit, the circuit needs to be detected before shipment, and parameters such as circuit on-off and electrical performance are detected to ensure that the circuit board can normally work. The structure for testing is mainly a test probe, and the test probe arranged on the detection mechanism is in contact with a contact point on a product to be tested to conduct conduction testing, but the test probe can be damaged and aged in different degrees after being used for a long time. Traditional maintenance is that the inspection of the assembled state of the detection of pressure, the detection of resistance value and probe is carried out by the manual work, to the great circuit board of volume, the probe that the test is required is in large quantity, and artifical maintenance is inefficient, and intensity of labour is big, and appears leaking the phenomenon of examining and examining the false retrieval easily, and unable high-efficient quick overhauls the test probe on the detection mechanism.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides automatic detection equipment and a visual calibration detection method, which have low labor intensity and high overhaul efficiency and quality.
The technical scheme adopted by the invention is as follows: automatic check out test set includes diaxon actuating mechanism, test module and product anchor clamps, the test module includes mount, a plurality of pressing components and the visual module that switches on, the mount with diaxon actuating mechanism's expansion end fixed connection, visual module sliding fit is in on the mount, visual module and one of them switch on and press the linkage of subassembly, it includes pressure test head and sharp actuating mechanism to switch on the pressing components, sharp actuating mechanism drives reciprocating linear motion is made along vertical direction to the pressure test head, the pressure test head pass through resistance detection circuit with product anchor clamps electric connection.
According to the scheme, the test product is driven to do plane motion through the two-axis driving mechanism, and then the test module is driven to move to the position above the probe to be tested so as to accurately test the test probe. The whole to-be-tested product is photographed by the vision module, and then is compared and calibrated with a preset probe position file, so that the accuracy and reliability of the test are improved. Meanwhile, the vision module is used for shooting the probe to be tested, the upper computer is used for carrying out pattern recognition, the type of the probe is confirmed, and the conduction pressing assembly is used for carrying out corresponding testing actions. The required driving mechanism is reduced through the linkage of the visual module and one of the conducting pressing assemblies, so that the size of the test module is reduced, and the cost is reduced. The pressure test head is used for pressing the probe to be tested and detecting the pressure value fed back by the probe. When the pressure test head is in contact with the probe to be tested, the pressure test head is conducted with the product clamp, so that the probe to be tested is connected to the resistance detection circuit, and the resistance value of the probe to be tested is detected.
Preferably, the test module further comprises a calibration laser transmitter, the calibration laser transmitter is fixed on the vision module, and the calibration laser transmitter transmits laser to a product to calibrate a maintenance point.
According to the scheme, the calibrated laser transmitter is arranged to indicate the detected fault point, so that the maintenance can be rapidly, efficiently and accurately performed, the error is reduced, and the working efficiency is improved.
One preferred scheme is, it still includes first straight line slide rail, first slider and floating structure to switch on the pressure subassembly, linear driving mechanism includes driving motor and synchronous belt assembly, first straight line slide rail is fixed on the mount, first slider sliding fit is in on the first straight line slide rail, the pressure test head passes through floating structure with first slider is connected, driving motor fixes on the mount, driving motor pass through synchronous belt assembly with first slider transmission is connected.
According to the scheme, the first linear slide rail is arranged to improve the linear movement precision of the pressure testing head, and therefore the pressure testing head can accurately carry out pressing testing on the probe to be tested. Through setting up floating structure absorbs impact force when pressure test head pushes down reduces to the damage of pressure test head and probe that awaits measuring.
Preferably, the vision module includes a second slider and an industrial camera, the second slider is in sliding fit with the fixing frame, the industrial camera is fixed on the second slider, and the second slider is connected with one of the synchronous belt assemblies of the conduction pressing assembly.
According to the scheme, the industrial camera is used for shooting images and feeding the images back to the upper computer for processing. Through the second slider with one of them switch on and press the subassembly the hold-in range subassembly is connected, realizes the linkage, and then reduces the cost of test module.
One preferred scheme is, the floating structure includes third linear slide rail, third slider, fixed block and floating spring, the third linear slide rail is fixed on first slider, the pressure test head passes through the third slider with third linear slide rail sliding fit, the fixed block is fixed the upper end of third linear slide rail, floating spring sets up the fixed block with between the pressure test head, be provided with on the first slider with the spacing complex separation blade of third slider.
According to the scheme, the third linear slide rail is arranged to ensure the linear movement precision of the pressure testing head, the floating spring absorbs impact force, the elastic coefficient of the floating spring is larger than that of the spring in the probe to be tested, and the pressure value detected by the pressure testing head is ensured to be the elastic force of the spring in the probe to be tested.
One preferred scheme is, product anchor clamps are including switching on faller, supporting seat and a pair of clamping mechanism, switch on the faller with supporting seat fixed connection, two clamping mechanism symmetry sets up switch on the both ends of faller.
According to the scheme, the conduction needle plate is electrically connected with the lower end of the probe of the product to be tested, and then the conduction needle plate is conducted to test the resistance value. The supporting seat is used for supporting a product to be tested. Through setting up two clamping mechanism carries on spacingly to the product that awaits measuring, and then prevents that the product that awaits measuring from taking place the displacement in the test procedure.
One preferred scheme is, clamping mechanism includes mount pad, spacing post, lifter, drives actuating cylinder and connecting rod, the mount pad with switch on faller fixed connection, lifter sliding fit is in the mount pad, spacing post passes the lifter, be equipped with the drive round pin on the spacing post, be equipped with in the mount pad with drive round pin complex direction spacing groove, the bottom of lifter is equipped with the tooth's socket, the one end of connecting rod articulates on the mount pad, be equipped with the drive tooth of tooth's socket looks adaptation on the connecting rod, the connecting rod is kept away from the one end of mount pad with the articulated cooperation of expansion end that drives actuating cylinder, it articulates the cooperation on the frame of equipment to drive actuating cylinder.
According to the scheme, the driving pin is limited through the guide limiting groove, so that when the limiting column moves up and down along with the lifting rod, the driving pin drives the limiting column to move in a telescopic mode under the limiting effect of the guide limiting groove, and the effects of stretching out and locking a product to be tested and retracting and unlocking are achieved. Through the design that the driving cylinder is hinged and matched on the equipment base, the connecting rod is prevented from being blocked and cannot act.
A preferred scheme is, diaxon actuating mechanism includes a plurality of fourth linear slide, lead screw drive assembly and sharp slip table, sharp slip table with lead screw drive assembly's expansion end fixed connection, all fourth linear slide all is on a parallel with lead screw drive assembly sets up, sharp slip table corresponds with a plurality of through a plurality of sliding blocks fourth linear slide sliding fit, sharp slip table perpendicular to lead screw drive assembly's length direction sets up, the mount with the expansion end fixed connection of sharp slip table, lead screw drive assembly's both sides all are equipped with fourth linear slide.
According to the scheme, the fourth linear sliding rails are arranged on the two sides of the screw rod driving assembly, so that the moving stability of the linear sliding table is improved, and the stable work of the test module is guaranteed.
The visual calibration detection method comprises the following steps:
A. firstly, drawing a corresponding drawing file by an operator according to the position of a probe on a product to be detected, and inputting the drawing file into the automatic detection equipment, wherein the drawing file is a graphic file containing the layout of the product probe and the distance between every two probes;
B. an operator places a product to be tested on the supporting seat, enables all probes on the product to be in butt joint with the conducting needle plate, and then starts the two clamping mechanisms to lock and fix the product;
C. the automatic detection equipment reads an input drawing file, extracts at least three probe points from a plurality of probe points of the drawing file, starts the two-axis driving mechanism and drives the vision module to move, so that the vision module completely shoots a top view image of a whole product to be detected, searches the extracted probe position through pattern recognition, obtains a central point of the probe and a coordinate point of the central point in a set initial coordinate system through external contour recognition of the probe, performs deviation adjustment and calibration on the initial coordinate system according to extracted and detected coordinate data, and enables the actual position of the product to be matched with position data read by a system in the drawing file;
D. after the calibration is finished, inputting probe information, selecting a probe by an operator to enable the two-axis driving assembly to drive the vision module to move to the position above the probe for image shooting, controlling the height of the vision module to focus to enable the outline of the head of the probe to be displayed clearly, framing or describing the outline characteristics of the probe in a shot image file by the operator in a system, and inputting the height parameters of the probe after the inputting;
E. after the data entry of the probes of all specifications is completed, probe type detection is carried out, the two-axis driving mechanism drives the vision module to move in sequence, all the probes on the product are shot and detected in sequence and fed back to a processor of the equipment, the processor carries out graph comparison on the shot image and the entered data, the specification type of the probe is identified, the identification result is compared with the probe type in an input drawing file of the product, whether the probe is accurately installed on the product is checked, and the probe with the wrong installation type is marked;
F. then, performing a probe performance test, driving the conduction pressing assembly to move to the position of the probe by the two-axis driving mechanism, driving the pressure testing head to descend by the linear driving mechanism and press the probe, acquiring a pressure value fed back when the probe is pressed by the pressure testing head, conducting the resistance detection circuit when the pressure testing head is in contact with the probe, acquiring a resistance value of the probe, and marking the probe which does not meet the use requirement;
G. after detection is finished, the two-axis driving mechanism drives the calibration laser transmitter to move to a position where the mark does not meet the use requirement or the probe is installed wrongly, the calibration laser transmitter emits light to irradiate the probe, and an operator replaces the probe according to the original specification of the product.
According to the scheme, the product probe layout and the distance information are input in advance, the vision module shoots and scans the product, the upper computer extracts calibration points according to the drawing file, the central point of the calibration probe is matched through the scanning image, the deviation calculation of the action original point of the test module is carried out, and then the deviation value is obtained, the moving coordinate system of the two-axis driving mechanism is calibrated, so that the test module can accurately move to the point of the probe to be tested. The probe with the error and the probe with the serious aging are installed through marking, and the calibration laser transmitter is used for indicating after the test is completed, so that an operator can quickly and accurately replace the probe, and the overhauling efficiency is greatly improved.
Preferably, in the step C, four probes distributed in a rectangular array on the product to be measured are respectively taken as calibration data.
According to the scheme, the four probes distributed in the rectangular array are extracted to serve as correction data, so that enough deviation data can be acquired, the calibration accuracy is guaranteed, and the calibration efficiency is improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a perspective view of the present invention in a loaded state;
FIG. 3 is a schematic perspective view of a first view angle of the test module;
FIG. 4 is a schematic perspective view of the test module at a second viewing angle;
FIG. 5 is an enlarged view of portion A of FIG. 4;
FIG. 6 is a schematic structural view of the clamping mechanism in a released state;
fig. 7 is a schematic structural view of a clamped state of the clamping mechanism.
Detailed Description
As shown in fig. 1 to 4, in this embodiment, the automatic detection apparatus includes two-axis driving mechanism 1, a test module 2 and a product fixture 3, the test module 2 includes a fixing frame 21, two sets of conducting pressing assemblies 22 and a vision module 23, the fixing frame 21 is fixedly connected to the movable end of the two-axis driving mechanism 1, the vision module 23 is in sliding fit on the fixing frame 21, the vision module 23 is linked with one set of the conducting pressing assemblies 22, the conducting pressing assemblies 22 include a pressure testing head 221 and a linear driving mechanism, the linear driving mechanism drives the pressure testing head 221 to make reciprocating linear motion along a vertical direction, and the pressure testing head 221 is electrically connected to the product fixture 3 through a resistance detection circuit.
As shown in fig. 3, in this embodiment, the test module 2 further includes a calibration laser emitter 24, the calibration laser emitter 24 is fixed on the vision module 23, and the calibration laser emitter 24 emits laser to the product to calibrate the maintenance point.
In this embodiment, the conduction pressing assembly 22 further includes a first linear slide rail 222, a first slider 223 and a floating structure, the linear driving mechanism includes a driving motor 224 and a synchronous belt assembly 225, the first linear slide rail 222 is fixed on the fixing frame 21, the first slider 223 is in sliding fit on the first linear slide rail 222, the pressure testing head 221 is connected with the first slider 223 through the floating structure, the driving motor 224 is fixed on the fixing frame 21, and the driving motor 224 is in transmission connection with the first slider 223 through the synchronous belt assembly 225. Still be equipped with a plurality of sensors that target in place on mount 21, be provided with on the first slider 223 with a plurality of sensor complex response piece targets in place, through setting up the response piece with the sensor detection that targets in place the position of pressure test head 221 prevents pressure test head 221 from removing beyond the limit safety position.
In this embodiment, the vision module 23 includes a second linear slide rail 231, a second slider 232, and an industrial camera 233, the second linear slide rail 231 is fixed on the fixing frame 21, the second slider 232 is slidably fitted on the second linear slide rail 231, the industrial camera 233 is fixed on the second slider 232, and the second slider 232 is connected to one of the timing belt assemblies 225 of the conduction and pressing assembly 22.
In this embodiment, the floating structure includes a third linear sliding rail 226, a third sliding block 227, a fixed block 228, and a floating spring, the third linear sliding rail 226 is fixed to the first sliding block 223, the pressure testing head 221 is slidably engaged with the third linear sliding rail 226 through the third sliding block 227, the fixed block 228 is fixed to the upper end of the third linear sliding rail 226, the floating spring is disposed between the fixed block 228 and the pressure testing head 221, and the first sliding block 223 is provided with a blocking plate 229 in limit engagement with the third sliding block 227. And the elastic coefficient of the floating spring is larger than that of the built-in spring of the probe to be detected.
In this embodiment, the product clamp 3 includes a conducting needle plate 31, a supporting seat 32 and a pair of clamping mechanisms 33, the conducting needle plate 31 is fixedly connected to the supporting seat 32, and the two clamping mechanisms 33 are symmetrically disposed at two ends of the conducting needle plate 31.
As shown in fig. 5, in this embodiment, the pressure testing head 221 includes a pressure sensor 2211, an insulating block 2212, a testing chuck 2213 and a testing needle 2214 connected in sequence, wherein the diameter specification of the testing needle 2214 can be changed according to the requirement, and the testing needle 2214 is electrically connected to the conductive needle plate 31 through a resistance detection circuit. During testing, the testing needle 2214 is in contact with the top cap of the probe to be tested and presses down to compress the built-in spring of the probe to be tested, the elastic coefficient of the floating spring is larger than that of the built-in spring of the probe to be tested, so that the deformation amount of the floating spring is smaller, the pressure value received by the pressure sensor 2211 is generated by the built-in spring of the probe to be tested, and the pressure sensor 2211 feeds back the pressure value to an upper computer after pressing down for a certain stroke, so that the detection of the structural part is completed. Meanwhile, the test needle 2214 is matched with the conduction needle plate 31 to connect a probe to be detected in a resistance detection circuit, and the resistance detection circuit detects the resistance value of the probe to be detected and feeds the resistance value back to an upper computer. The upper computer judges whether the probe can be continuously used according to the acquired data, if the probe cannot be used, the probe is marked, and infrared indication is carried out in the subsequent maintenance steps.
As shown in fig. 6 and 7, in this embodiment, the clamping mechanism 33 includes an installation base 331, a limit post 332, a lifting rod 333, a driving cylinder 334 and a connecting rod 335, the installation base 331 is fixedly connected to the conduction needle plate 31, the lifting rod 333 is slidably fitted in the installation base 331, the limit post 332 passes through the lifting rod 333, a driving pin 336 is disposed on the limit post 332, a guiding limit slot 337 matched with the driving pin 336 is disposed in the installation base 331, a tooth slot is disposed at the bottom of the lifting rod 333, one end of the connecting rod 335 is hinged to the installation base 331, driving teeth matched with the tooth slot are disposed on the connecting rod 335, one end of the connecting rod 335 far from the installation base 331 is hinged to the movable end of the driving cylinder 334, and the driving cylinder 334 is hinged to a base of the device. Drive during the cylinder 334 retraction drive the connecting rod 335 is rotatory, the connecting rod 335 drives through driving the tooth the lifter 333 is followed the mount pad 331 rises, when rising drive round pin 336 with the inclined plane contact of direction spacing groove 337 is received spacingly, and then drives spacing post 332 retraction realizes the pine and takes off the action, otherwise is the locking action. When the locking action is performed, the limiting column 332 extends out and simultaneously descends along with the lifting rod 333 synchronously, so that the product to be detected is pressed, and the probe pin of the product to be detected is in butt joint with the conduction needle plate 31.
In this embodiment, diaxon actuating mechanism 1 includes a plurality of fourth linear slide 11, lead screw drive assembly 12 and straight line slip table 13, straight line slip table 13 with lead screw drive assembly 12's expansion end fixed connection, all fourth linear slide 11 all is on a parallel with lead screw drive assembly 12 sets up, straight line slip table 13 corresponds with a plurality of through a plurality of sliding blocks fourth linear slide 11 sliding fit, straight line slip table 13 perpendicular to lead screw drive assembly 12's length direction sets up, mount 21 with straight line slip table 13's expansion end fixed connection, lead screw drive assembly 12's both sides all are equipped with fourth linear slide 11.
The visual calibration detection method comprises the following steps:
A. firstly, drawing a corresponding drawing file by an operator according to the position of a probe on a product to be detected, and inputting the drawing file into the automatic detection equipment, wherein the drawing file is a graphic file which is drawn by AutoCAD software and contains product probe layout, the distance between every two probes and the position of the product probe;
B. an operator places a product to be tested on the supporting seat 32, enables all probes on the product to be in butt joint with the conducting needle plate 31, and then starts the two clamping mechanisms 33 to lock and fix the product;
C. the automatic detection equipment reads an input drawing file, four probes distributed in a rectangular array on a product to be detected are taken as calibration probe points respectively, the two-axis driving mechanism 1 is started and drives the vision module 23 to move, the vision module 23 completely shoots an overlook image of the whole product to be detected, an extracted probe position is searched through pattern recognition, a central point of the probe is obtained through outline recognition of the probe, a coordinate point of the central point in a set initial coordinate system is further obtained, deviation adjustment and calibration are carried out on the initial coordinate system according to extracted and detected coordinate data, and the actual position of the product is matched with position data in the drawing file read by a system;
D. after the calibration is finished, inputting probe information, selecting a probe by an operator to enable the two-axis driving assembly to drive the vision module 23 to move to the position above the probe for image shooting, focusing by controlling the height of the vision module 23 to enable the outline of the head of the probe to be displayed clearly, performing frame selection or description on the outline characteristics of the probe in a shot image file by the operator in a system, and inputting the height parameter of the probe after the input;
E. after the data entry of the probes of all specifications is completed, probe type detection is carried out, the two-axis driving mechanism 1 drives the vision module 23 to move in sequence, all the probes on the product are shot and detected in sequence and fed back to a processor of the equipment, the processor carries out graph comparison on the shot image and the entered data, the specification type of the probes is identified, the identification result is compared with the probe type in the input drawing file of the product, whether the installation of the probes on the product is accurate or not is checked, and the probes with wrong installation types are marked;
F. then, performing a probe performance test, wherein the two-axis driving mechanism 1 drives the conduction pressing assembly 22 to move to the position of the probe, the linear driving mechanism drives the pressure testing head 221 to descend and press the probe, the pressure testing head 221 acquires a pressure value fed back when the probe is pressed, and meanwhile, when the pressure testing head 221 contacts with the probe, the resistance detection circuit is conducted, acquires the resistance value of the probe, and marks the probe which does not meet the use requirement;
G. after the detection is finished, the two-axis driving mechanism 1 drives the calibration laser emitter 24 to move to a position where the mark does not meet the use requirement or the probe is installed wrongly, the calibration laser emitter 24 emits light to irradiate the probe, and an operator replaces the probe according to the original specification of the product.
Claims (10)
1. An automatic detection device, characterized in that: it includes diaxon actuating mechanism (1), test module (2) and product anchor clamps (3), test module (2) including mount (21), a plurality of switch on and press subassembly (22) and vision module (23), mount (21) with the expansion end fixed connection of diaxon actuating mechanism (1), vision module (23) sliding fit is in on mount (21), vision module (23) and one of them switch on and press subassembly (22) linkage, switch on and press subassembly (22) including pressure test head (221) and linear driving mechanism, linear driving mechanism drives reciprocating linear motion is made along vertical direction in pressure test head (221), pressure test head (221) through resistance detection circuitry with product anchor clamps (3) electric connection.
2. An automatic detection device according to claim 1, characterized in that: the test module (2) further comprises a calibration laser transmitter (24), the calibration laser transmitter (24) is fixed on the vision module (23), and the calibration laser transmitter (24) transmits laser to a product to calibrate a maintenance point.
3. An automatic detection device according to claim 2, characterized in that: the conduction pressing assembly (22) further comprises a first linear sliding rail (222), a first sliding block (223) and a floating structure, the linear driving mechanism comprises a driving motor (224) and a synchronous belt assembly (225), the first linear sliding rail (222) is fixed on the fixed frame (21), the first sliding block (223) is in sliding fit with the first linear sliding rail (222), the pressure testing head (221) is connected with the first sliding block (223) through the floating structure, the driving motor (224) is fixed on the fixed frame (21), and the driving motor (224) is in transmission connection with the first sliding block (223) through the synchronous belt assembly (225).
4. An automatic detection device according to claim 3, characterized in that: the vision module (23) comprises a second sliding block (232) and an industrial camera (233), the second sliding block (232) is in sliding fit with the fixed frame (21), the industrial camera (233) is fixed on the second sliding block (232), and the second sliding block (232) is connected with the synchronous belt component (225) of one of the conduction pressing components (22).
5. An automatic detection device according to claim 3, characterized in that: the floating structure comprises a third linear sliding rail (226), a third sliding block (227), a fixed block (228) and a floating spring, wherein the third linear sliding rail (226) is fixed on the first sliding block (223), the pressure test head (221) is in sliding fit with the third linear sliding rail (226) through the third sliding block (227), the fixed block (228) is fixed at the upper end of the third linear sliding rail (226), the floating spring is arranged between the fixed block (228) and the pressure test head (221), and a separation blade (229) in limit fit with the third sliding block (227) is arranged on the first sliding block (223).
6. An automatic detection device according to claim 3, characterized in that: product anchor clamps (3) are including conducting faller (31), supporting seat (32) and a pair of clamping mechanism (33), conduct faller (31) with supporting seat (32) fixed connection, two clamping mechanism (33) symmetry sets up the both ends of conducting faller (31).
7. An automatic detection device according to claim 6, characterized in that: clamping mechanism (33) includes mount pad (331), spacing post (332), lifter (333), drives actuating cylinder (334) and connecting rod (335), mount pad (331) with switch on faller (31) fixed connection, lifter (333) sliding fit is in mount pad (331), spacing post (332) pass lifter (333), be equipped with driving pin (336) on spacing post (332), be equipped with in mount pad (331) with driving pin (336) complex direction spacing groove (337), the bottom of lifter (333) is equipped with the tooth's socket, the one end of connecting rod (335) articulates on mount pad (331), be equipped with the driving tooth of tooth's socket looks adaptation on connecting rod (335), connecting rod (335) are kept away from the one end of mount pad (331) with the activity end hinge fit that drives actuating cylinder (334), the driving cylinder (334) is hinged and matched on a machine base of the equipment.
8. An automatic detection device according to claim 1, characterized in that: diaxon actuating mechanism (1) includes a plurality of fourth linear slide (11), lead screw drive assembly (12) and sharp slip table (13), sharp slip table (13) with the expansion end fixed connection of lead screw drive assembly (12), all fourth linear slide (11) all are on a parallel with lead screw drive assembly (12) set up, sharp slip table (13) correspond with a plurality of through a plurality of sliding blocks fourth linear slide (11) sliding fit, sharp slip table (13) perpendicular to the length direction of lead screw drive assembly (12) sets up, mount (21) with the expansion end fixed connection of sharp slip table (13), the both sides of lead screw drive assembly (12) all are equipped with fourth linear slide (11).
9. A method for visual alignment detection of an automatic detection device according to claim 6 or 7, characterized in that it comprises the following steps:
A. firstly, drawing a corresponding drawing file by an operator according to the position of a probe on a product to be detected, and inputting the drawing file into the automatic detection equipment, wherein the drawing file is a graphic file containing the layout of the product probe and the distance between every two probes;
B. an operator places a product to be tested on the supporting seat (32), enables all probes on the product to be in butt joint with the conducting needle plate (31), and then starts the two clamping mechanisms (33) to lock and fix the product;
C. the automatic detection equipment reads an input drawing file, extracts at least three probe points from a plurality of probe points of the drawing file, starts the two-axis driving mechanism (1) and drives the vision module (23) to move, so that the vision module (23) can completely shoot an overlook image of the whole product to be detected, searches the extracted probe position through pattern recognition, obtains a central point of the probe and a coordinate point of the central point in a set initial coordinate system through external contour recognition of the probe, and performs deviation adjustment and calibration on the initial coordinate system according to extracted and detected coordinate data, so that the actual position of the product is matched with position data in the drawing file read by a system;
D. after the calibration is finished, inputting probe information, selecting a probe by an operator to enable the two-axis driving assembly to drive the vision module (23) to move to the position above the probe for image shooting, focusing by controlling the height of the vision module (23) to enable the outline of the head of the probe to be displayed clearly, performing frame selection or description on the outline characteristics of the probe in a shot image file by the operator in a system, and inputting the height parameter of the probe after the inputting;
E. after the data of all specifications of probes are recorded, probe type detection is carried out, the two-axis driving mechanism (1) drives the vision module (23) to move in sequence, all the probes on a product are photographed and detected in sequence and fed back to a processor of the equipment, the processor carries out graph comparison on the photographed image and the recorded data, the specification type of the probe is recognized, the recognition result is compared with the probe type in an input drawing file of the product, whether the probe is accurately installed on the product is checked, and the probe with a wrong installation type is marked;
F. then, performing a probe performance test, wherein the two-axis driving mechanism (1) drives the conduction pressing assembly (22) to move to the position of the probe, the linear driving mechanism drives the pressure testing head (221) to descend and press the probe, the pressure testing head (221) acquires a pressure value fed back when the probe is pressed, the resistance detection circuit is conducted when the pressure testing head (221) is in contact with the probe, the resistance value of the probe is acquired, and the probe which does not meet the use requirement is marked;
G. after detection is finished, the two-axis driving mechanism (1) drives the calibration laser emitter (24) to move to a position where the mark does not accord with the use requirement or the probe is installed wrongly, the calibration laser emitter (24) emits light to irradiate the probe, and an operator replaces the probe according to the original specification of a product.
10. The visual alignment detection method of claim 9, wherein: and C, respectively taking four probes distributed in a rectangular array on the product to be detected as calibration data.
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