WO2024093201A1 - 一种串联插拔的自动化测试设备及其工作方法 - Google Patents

一种串联插拔的自动化测试设备及其工作方法 Download PDF

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Publication number
WO2024093201A1
WO2024093201A1 PCT/CN2023/094939 CN2023094939W WO2024093201A1 WO 2024093201 A1 WO2024093201 A1 WO 2024093201A1 CN 2023094939 W CN2023094939 W CN 2023094939W WO 2024093201 A1 WO2024093201 A1 WO 2024093201A1
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WO
WIPO (PCT)
Prior art keywords
test
plugging
unplugging
plug
product
Prior art date
Application number
PCT/CN2023/094939
Other languages
English (en)
French (fr)
Inventor
朱继田
朱涛
Original Assignee
苏州精濑光电有限公司
武汉精测电子集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州精濑光电有限公司, 武汉精测电子集团股份有限公司 filed Critical 苏州精濑光电有限公司
Publication of WO2024093201A1 publication Critical patent/WO2024093201A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/90—Devices for picking-up and depositing articles or materials
    • B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/04—Housings; Supporting members; Arrangements of terminals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/01—Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/36—Preventing errors by testing or debugging software
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/26—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device

Definitions

  • the invention belongs to the technical field of automated testing, and in particular relates to automated testing equipment for serial plugging and unplugging and a working method thereof.
  • test software function tests are usually required. When the number of test software is small, they can be integrated on the same test host for testing. However, when the number of test software is large, since the test host cannot automatically dial the code, they are generally tested on different test hosts. That is, the same product must flow through different test stations to perform the corresponding functional tests of the station. This requires that the product and the test host need to be turned on and off every time the station moves.
  • the product is fixed on the fixture, and the connection between the product and the connector on the fixture is generally automated, while the plugging and unplugging of the other end of the connector on the fixture and the test host is manual, which has a low degree of automation and increases labor costs.
  • the monotonous plugging and unplugging work is also prone to fatigue, which is very likely to cause a certain degree of damage to the plug interface, affecting the test.
  • the automated plugging and unplugging of the other end of the connector on the fixture and the test host also puts forward higher requirements for positioning accuracy.
  • the present invention provides an automatic test device for serial plugging and unplugging and a working method thereof, which can greatly improve the test efficiency, increase the repeated service life of the plug, and save the test cost.
  • the present invention provides an automated test equipment for serial plugging and unplugging, including a handling device and a test line, the test line is provided with a loading and unloading station and a plurality of test stations, the handling device is used for loading and unloading products, the loading and unloading station and the plurality of test stations are provided with a carrier fixture for placing products, the carrier fixture is provided with a primary plug-in assembly and a double-plug adapter, and the positions corresponding to the plurality of test stations below the test line are provided with secondary plug-in assemblies, the primary plug-in assembly is used to connect the product to one end of the double-plug adapter, and the secondary plug-in assembly is used to connect the other end of the double-plug adapter to the test host corresponding to the test station.
  • the primary plug-in assembly is used to realize the automatic plug-in and unplugging of the product and the fixture
  • the secondary plug-in assembly is used to realize the automatic plug-in and unplugging of the fixture and the test host
  • the serial connection of the test host and the product is realized by two automatic plug-ins, thereby avoiding manual work and improving work efficiency.
  • the carrier fixture is also provided with a fixing structure for fixing the product, and the bottom surface of the product is provided with a plug-in hole;
  • the one-time plug-in assembly comprises a first lifting mechanism and a first connector, the first connector is connected to one end of the double-plug adapter through a wire and a connector, and the first lifting mechanism drives the first connector to connect/disconnect with the plug hole on the product;
  • the secondary plug-in assembly includes a second lifting mechanism and a second connector.
  • the second lifting mechanism drives the second connector to connect/disconnect with the other end of the dual-plug adapter.
  • the second connector is connected to the test host corresponding to the test station through a wire and a connector.
  • the test host is used to provide a test program performed by the test station.
  • a double-plug adapter is set on the carrier fixture, and one end of the double-plug adapter is electrically connected to the product using a primary plug-in assembly, and the other end of the double-plug adapter is electrically connected to the test host using a secondary plug-in assembly, to achieve two series plug-in power-ons.
  • the first lifting mechanism and the second lifting mechanism are driven to descend, and the first connector and the second connector are unplugged.
  • the product and the carrier fixture move one station on the test line, and two series plug-ins are performed again to perform another functional test. After the tests are completed at all test stations, the handling device will unload the product.
  • the second joint is a flexible joint, including a mounting seat and a contoured pressure head movably connected to the mounting seat, the mounting seat is connected to the second lifting mechanism, the contoured pressure head includes a base plate and a probe arranged on the base plate, a raised insulating wall is arranged around the probe, and an inclined surface for plug-in guidance is arranged on the insulating wall; the base plate is connected to the mounting seat through an elastic member and a fixing member, a contoured through hole is arranged on the base plate, and the fixing member is connected to the mounting seat through the contoured through hole.
  • the second joint connected to the test host needs to be adapted to the double-plug adapter on all the carrier fixtures on the test assembly line under the drive of the second lifting mechanism.
  • the second joint is set as a flexible joint, and the insulating wall on the contoured pressure head is used for guidance during the plug-in process, so as to ensure that the probe can be aligned and energized after plugging, thereby improving the stability of the electrical connection.
  • the fixing part limits the amount of movement between the contoured pressure head and the mounting seat, that is, it plays a role of rough positioning, while allowing a certain range of movement during the plugging and unplugging process.
  • the second lifting mechanism includes a driving member, a first connecting plate, a second connecting plate, a third connecting plate, a fourth connecting plate and a mounting plate connected in sequence, the first connecting plate is used to install the driving member, the second connecting plate, the third connecting plate and the fourth connecting plate are respectively adjustable in the ⁇ direction, the Y direction and the X direction, and the mounting plate is installed on the table or the ground below the test assembly line so that the second connector faces the double plug adapter.
  • the installation position of the secondary plug assembly can be adjusted regularly or in batches according to the product before testing, so as to improve the alignment accuracy of the second connector and the double plug adapter in terms of installation accuracy.
  • the fixing structure includes a plurality of inductive bearing columns and a plurality of movable suction cups, and the inductive bearing columns and the movable suction cups pass through the upper surface of the carrier jig to fix the product upward;
  • the inductive bearing columns include a first mounting block and a light shielding pin, a pillar, and a photoelectric sensor mounted on the first mounting block, the pillar protruding from the upper surface of the first mounting block, the light shielding pin is movably sleeved inside the pillar through an elastic member, and the initial height is higher than the pillar, the photoelectric sensor is located below the light shielding pin and is used to sense the position of the light shielding pin, and the first mounting block is mounted on the carrier jig;
  • the movable suction cup includes a second mounting block and a suction nozzle, a suction rod, a clamping assembly, and a limiter mounted on the second mounting block, the suction nozzle is connected to the suction rod, and the outer pe
  • the shading pin and the suction nozzle are squeezed by the elastic part to move downward.
  • the feedback signal of the photoelectric sensor determines that the product has been placed in place.
  • the clamping assembly acts to clamp the suction rod to keep the suction nozzle at this height to prevent the product from moving upward due to force when the first connector is plugged upward, resulting in plug-in failure.
  • An image acquisition device is provided on one side of the test line corresponding to the loading and unloading station, which is used for positioning the product during placement.
  • Through holes are provided on the test line and the carrier jig corresponding to the lens position, and the transport device and the image acquisition device are electrically connected to the controller.
  • the reasonable path of the transport device can be set according to the product incoming position to adjust and correct the placement position of the product, so that the placement position of the product on the carrier jig is accurate, ensuring the position accuracy of one-time plugging and unplugging.
  • the test assembly line is a turntable, which is installed on the base through a cam distributor, the carrier fixture is centrally symmetrically arranged on the turntable, and the secondary plug-in assembly is arranged on the base.
  • the turntable assembly line saves space, and loading and unloading are integrated in a station on the turntable.
  • the handling device can be used to complete the loading and unloading of the product, saving equipment costs.
  • a frame for fixing an electric slip ring is provided at the center of the turntable.
  • the electric slip ring is used to pass electric wires and air pipes to maintain the supply of circuits and air lines when the turntable rotates.
  • the machine base is installed on a leveling bracket. The base is kept horizontal during installation to ensure the vertical lifting of the first joint and the second joint, thereby avoiding plug-in problems caused by the tilt of the probe.
  • a working method of an automated test device for serial plugging and unplugging comprising the following steps:
  • the handling device loads the product to be tested to the loading and unloading station on the test assembly line, and the test assembly line moves one station;
  • the first lifting mechanism rises, so that the first connector contacts the plug hole on the bottom of the product, completing a series plug-in, and at the same time the second lifting mechanism rises, so that the second connector contacts the plug of the double-plug adapter, completing a second series plug-in, the product is connected to the test host of the corresponding test station, and the test of the station is carried out; after the test is completed, the first lifting mechanism and the second lifting mechanism descend, so that the first connector and the second connector are both disconnected, and the assembly line moves one station;
  • step S3 repeat step S2, so that the product completes the corresponding test at each test station, and the handling device unloads the product that has completed the test.
  • step S1 the image acquisition device acquires the position of the plug-in hole on the bottom surface of the product and feeds it back to the controller, and the controller controls the conveying device to correct the position of the product so that the product is placed at a determined position on the carrier fixture.
  • the beneficial effects of the present invention mainly include:
  • the automatic test equipment for serial plugging and unplugging sets loading and unloading stations and multiple test stations on the test assembly line, each test station corresponds to a test host to implement a software function test, and uses a primary plug-in component and a secondary plug-in component to implement two serial automatic plug-ins between the product and the fixture, and between the fixture and the test host, thereby avoiding manual work and improving work efficiency;
  • the automatic test equipment for serial plugging and unplugging provided by the present invention sets the second joint as a flexible joint, which can be automatically guided during the lifting and plugging process to ensure the effectiveness of the plugging and prevent the joint from being damaged. It solves the problem of position alignment caused by the tolerance of the installation position of different test hosts and different carrier fixtures, and reduces the difficulty of equipment installation;
  • the automated testing equipment for serial plugging and unplugging provided by the present invention utilizes the inductive load-bearing column and the movable suction cup to cooperate with each other to fix the product. No displacement will occur during the plugging and unplugging process, thus ensuring the stability of the adsorption.
  • FIG1 is a schematic diagram of the structure of an automated test device for serial plugging and unplugging according to an embodiment of the present invention
  • FIG2 is a left side view of the automated test equipment for serial plugging and unplugging according to an embodiment of the present invention
  • FIG3 is a schematic diagram of the structure of a stage fixture in an embodiment of the present invention.
  • FIG4 is a schematic structural diagram of a first lifting mechanism in an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a second lifting mechanism in an embodiment of the present invention.
  • FIG6 is a schematic diagram of the structure of a second joint in an embodiment of the present invention.
  • FIG7 is a schematic structural diagram of an inductive bearing column according to an embodiment of the present invention.
  • FIG8 is a schematic structural diagram of a movable suction cup in an embodiment of the present invention.
  • FIG9 is a schematic diagram of the structure of an image acquisition device according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of the relative positions of the camera field of view and the first joint in an embodiment of the present invention.
  • Figure numerals 1-handling device, 2-turntable, 20-base, 21-frame, 3-carrier fixture, 31-inductive bearing column, 310-first mounting block, 311-light shielding pin, 312-pillar, 313-photoelectric sensor, 32-movable suction cup, 320-second mounting block, 321-suction nozzle, 322-suction rod, 323-linear bearing, 324-clamping assembly, 3241-second cylinder, 3242-V-nozzle oblique push, 3243-clamp, 325-limiting member, 4-one-time plug-in assembly, 41-first lifting mechanism, 410-installation structure, 411-first cylinder, 412-slide, 413-conversion table, 414-lifting table, 415-torque sensor, 416 -position sensor, 417-limit screw, 418-buffer, 419-scale, 5-double plug adapter, 6-secondary plug-in assembly, 61-second lifting mechanism, 611-driving member, 612-first connecting plate, 613-
  • the automated test equipment for serial plugging and unplugging of the present embodiment shown in FIG. 1-3 includes a handling device 1 and a test assembly line.
  • the test assembly line is provided with a loading and unloading station and a plurality of test stations.
  • the handling device 1 is used for loading and unloading of the product 100.
  • the loading and unloading station and the plurality of test stations are provided with a carrier fixture 3 for placing the product.
  • the handling device 1 places the product 100 on the carrier fixture 3 at the loading and unloading station.
  • the carrier fixture 3 is provided with a fixing structure for fixing the product, and a plug-in hole is provided on the bottom surface of the product 100.
  • the test assembly line is a turntable 2.
  • the test assembly line can also be a straight line, a square line or a ring line formed in the form of a belt, a roller, etc.
  • the turntable 2 is mounted on the base 20 via a cam distributor (not shown in the figure), the stage fixture 3 is centrally symmetrically arranged on the turntable 2, and the machine base 20 is mounted on a leveling bracket to level the surface of the base 20 and the turntable 2 during installation.
  • the carrier fixture 3 is a double-layer structure, the product 100 is fixed on the upper layer, a primary plug-in assembly 4 is provided between the two layers, a dual-plug adapter 5 is provided on the lower layer, and secondary plug-in assemblies 6 are provided at positions corresponding to the multiple test stations on the base 20.
  • One end of the dual-plug adapter 5 is connected/disconnected with the product 100 through the primary plug-in assembly 4, and the other end of the dual-plug adapter 5 is connected/disconnected with the test host 7 on the corresponding test station through the secondary plug-in assembly 6.
  • the test host 7 is placed on the base 20 or on the leveling bracket to provide the test program performed by the test station. After two plug-in series connections, the product 100 can perform the test program in the corresponding test host 7.
  • the single-plug assembly 4 includes a first lifting mechanism 41 and a first connector (not shown in the figure).
  • the first connector is connected to one end of the double-plug adapter 5 through a wire and a connector.
  • the first lifting mechanism 41 drives the first connector to connect/disconnect with the plug hole on the product 100.
  • the first lifting mechanism 41 includes a mounting structure 410, a first cylinder 411 and a lifting platform 414 arranged on the mounting structure 410.
  • the mounting structure 410 is arranged on the carrier fixture 3, such as the bottom surface or side surface of the carrier fixture 3.
  • the lifting platform 414 moves under the drive of the first cylinder 411, and the first joint is connected to the lifting platform 414.
  • a slide 412 is arranged on the mounting structure 410, and the lifting platform 414 moves along the slide rail on the slide 412.
  • the piston rod of the first cylinder 411 is connected to the conversion platform 413, and the conversion platform 413 is connected to the lifting platform 414 through a torque sensor 415, and the conversion platform 413 also moves along the slide rail.
  • the conversion table 413 rises and pushes the lifting platform 414 to rise.
  • the torque sensor 415 feeds back the resistance.
  • the maximum value of the resistance is the plug-in force.
  • the torque sensor 415 can collect the magnitude of each plug-in force and store it as a plug-in and unplugging record and transmit it to the external control system.
  • a scale 419 for obtaining the displacement of the first joint, a limit screw 417 for limiting the maximum displacement of the conversion table 413, and a buffer 418 for buffering are also provided on the side of the slide 412.
  • a position sensor 416 for feedback of the position of the lifting platform 414 is also provided on the top of the mounting structure 410. When the position sensor 416 sends a feedback signal, it indicates that the first joint is plugged in, and the controller controls the first cylinder 411 to stop moving.
  • the setting mechanism of the scale 419, the limit screw 417, the buffer 418, and the position sensor 416 are all common knowledge in the field of automation equipment and will not be repeated here.
  • the secondary plug-in assembly 6 includes a second lifting mechanism 61 and a second connector 62.
  • the second lifting mechanism 61 drives the second connector 62 to connect/disconnect with the other end of the dual-plug adapter 5.
  • the second connector 62 is connected to the test host 7 corresponding to the test station through the wire and the connector.
  • the second lifting mechanism 61 includes a driving member 611, a first connecting plate 612, a second connecting plate 613, a third connecting plate 614, a fourth connecting plate 615 and a mounting plate 616 which are connected in sequence.
  • the first connecting plate 612 is used to install the driving member 611.
  • the second connecting plate 613, the third connecting plate 614 and the fourth connecting plate 615 are respectively adjustable in the ⁇ direction, the Y direction and the X direction.
  • the fourth connecting plate 615 is provided with a waist-shaped hole in the X direction
  • the third connecting plate 614 is provided with a waist-shaped hole in the Y direction
  • the second connecting plate 613 is provided with a waist-shaped hole in the ⁇ direction.
  • the waist-shaped holes are connected by screws passing through the screws so that the second connector 62 faces the double plug adapter 5.
  • the mounting plate 616 is installed on the base 20.
  • the second connector 62 is set as a flexible connector.
  • the second connector 62 includes a mounting seat 621 and a contoured pressure head 622 movably connected to the mounting seat 621, the mounting seat 621 is connected to the second lifting mechanism 61, the contoured pressure head 622 includes a bottom plate 6220 and a probe 6221 arranged on the bottom plate 6220, a raised insulating wall 6222 is arranged around the probe 6221, and an inclined surface for plug-in guidance is arranged on the insulating wall 6222; the bottom plate 6220 is connected to the mounting seat 621 through an elastic member and a fixing member, and a contoured through hole is arranged on the bottom plate 6220, and the fixing member passes through the contoured through hole and is connected to the mounting seat 621.
  • the fixing member is a cone head screw 623, one is provided at each of the four corners of the mounting seat 621, and the elastic member is a spring, one is provided at each of the two ends of the mounting seat 621.
  • the fixing member may also be a pin, etc., and the elastic member may also be replaced by other elastic rubber rings, springs, etc.; similarly, the number of the fixing member and the elastic member may also be set as required.
  • the second connector 62 is installed on the movable end of the driving member 611 through the mounting seat 621. During the process of the driving member 611 rising for plugging, the position of the contoured pressure head 622 has a certain error with the socket of the double plug conversion member 5.
  • the inclined surface of the upper end of the insulating wall 6222 plays a guiding role. Since the bottom plate 6220 is connected to the mounting seat through an elastic member, a certain range of movable space is allowed, and the position can be gradually corrected during the plugging process to avoid damage to the plug interface, reduce the accuracy requirements during equipment installation, and reduce the difficulty of installation.
  • the cone head screw 623 not only improves the connection strength, but also limits the range of movement between the contoured pressure head 622 and the mounting seat 621, that is, it plays a role of rough positioning, while allowing a certain range of movement during the plugging and unplugging process.
  • the first joint also adopts the same structure as the second joint 62, allowing for a slight error in the placement of the product 100.
  • test boxes 7 may be selected for testing different products, and the connector models of the test hosts 7 may also be different.
  • a test box 63 is also provided on one side of the mounting plate 616.
  • the test box 63 is provided with an input port and an output port.
  • the input port is connected to the corresponding test host 7, and the output port is connected to one end of the connecting wire of the second connector 62. That is, the role of converting the connector model is achieved by selecting a suitable test box 63.
  • the product 100 is a vehicle-mounted display screen, and its plug-in interface is located on a curved surface. Therefore, when a suction cup at a fixed position is used to adsorb and fix the product 100, the height of the suction cup varies, and the installation is difficult. Even if the suction cup is set at different heights, there will be problems of loose adsorption due to installation tolerances. Therefore, in this embodiment, as shown in FIG3 , the fixed structure on the carrier fixture 3 includes a plurality of inductive bearing columns 31 and a plurality of movable suction cups 32. The inductive bearing columns 31 and the movable suction cups 32 pass through the upper surface of the carrier fixture 3 to fix the product upward.
  • the number of movable suction cups 32 is 3, which are arranged in a triangle around the plug-in interface.
  • the number of inductive bearing columns 31 is 1, which is located at a corner of the plug-in interface.
  • a support column is also arranged in another triangle of the plug-in interface to play a supporting role when the product 100 is placed in place.
  • the inductive bearing columns 31, the movable suction cups 32 and the support columns can be arranged as needed.
  • the sensing bearing column 31 includes a first mounting block 310 and a shading pin 311, a pillar 312, and a photoelectric sensor 313 installed on the first mounting block 310.
  • the pillar 312 protrudes from the upper surface of the first mounting block 310.
  • the shading pin 311 is movably mounted inside the pillar 312 through an elastic member, and its initial height is higher than the pillar 312.
  • the photoelectric sensor 313 is located below the shading pin 311 and is used to sense the position of the shading pin 311.
  • the first mounting block 310 is installed on the carrier fixture 3.
  • the movable suction cup 32 includes a second mounting block 320 and a suction nozzle 321, a suction rod 322, a clamping assembly 324 and a limit piece 325 installed on the second mounting block 320.
  • the suction nozzle 321 is connected to the suction rod 322.
  • the outer periphery of the suction rod 322 is sequentially sleeved with elastic members and linear bearings 323.
  • the clamping assembly 324 is used to clamp or loosen the suction rod 322 under the linear bearing 323.
  • the limit piece 325 is provided on the second mounting block 320, located on the outer periphery of one end of the suction rod 322, and is used to limit the initial position of the suction nozzle 321 to be lower than the shading pin 311 and higher than the support 312.
  • the limit piece 325 is a clamping ring, and in other embodiments it can also be a pin, a nut, etc.
  • the second mounting block 320 is installed on the carrier fixture 3.
  • the clamping assembly 324 includes a second cylinder 3241, a V-nozzle oblique push 3242 driven by the second cylinder 3241, and two clamps 3243 arranged opposite to each other.
  • the end of the clamp 3243 adjacent to the V-nozzle oblique push 3242 is connected by a spring, and the other end is rotatably connected by a pin.
  • the light shielding pin 311 and the suction rod 322 overcome the elastic force and move downward under the gravity of the product 100.
  • the position change of the light shielding pin 311 is fed back by the photoelectric sensor 313, indicating that the product 100 has been placed in place.
  • the suction nozzle 321 absorbs the product 100, and the second cylinder 3241 drives the V-nozzle oblique push 3242 to move away from the clamp 3243.
  • the light shielding pin 311 is reset under the action of the elastic force, it means that there is no product on the carrier fixture 3.
  • the second cylinder 3241 drives the V-nozzle oblique push 3242 to move toward the clamp 3243.
  • the adsorption and positioning of the three movable suction cups 32 are all controlled by the signal of the same sensing support column 31 to achieve the use effect.
  • a sensing support column 31 can also be set next to each movable suction cup 32, and the air path of the movable suction cup 32 and the circuit of the sensing support column 31 can be separated and controlled separately. At this time, the surface of the product 100 is not level and is tilted after the product handling device 1 grabs the product 100.
  • the carrier fixture 3 is provided with an inductive bearing column 31 and a movable suction cup 32, an air circuit and an electric circuit are provided on the turntable 2.
  • a frame 21 for fixing the electric slip ring is provided in the center of the turntable 2.
  • the handling device 1 needs to place the product 100 at the determined position of the stage fixture 3.
  • the handling device 1 can be used to achieve this by passing through a determined path at the determined position, or the handling device 1 can be used to perform position correction during the handling process.
  • an image acquisition device 8 is provided on the base 20 to collect the position of the plug hole on the product 100.
  • the handling device 1 performs position correction.
  • the base 20 and the stage fixture 3 are provided with through holes corresponding to the lens position.
  • the handling device 1 and the image acquisition device 8 are both electrically connected to the controller.
  • the image acquisition device 8 includes a camera 81, a first direction moving component 82 that drives the camera 81 to move along a first direction, and a second direction moving component 83 that drives the first direction moving component 82 to move along a second direction.
  • the first direction is perpendicular to the second direction and is used to adjust the position of the camera 81.
  • a ring light source 84 is also provided on the stage fixture 3.
  • the handling device has X-direction, Y-direction, ⁇ -direction and Z-direction degrees of freedom.
  • the handling device with the four degrees of freedom and the image acquisition device cooperating with the handling device to perform position correction for picking up and placing objects belong to the conventional design of automation equipment and will not be described in detail here.
  • the square A in the figure represents the field of view of the camera 21, and the circle B represents the outer contour of the first connector. Then, only a part of the contour of the first connector is within the field of view of the camera 21, and as long as a part of the plug interface of the product 100 appears in the field of view of the camera 10, the external controller will make the part of the contour corresponding to the plug interface of the product 100 coincide with the first connector according to the image, thereby ensuring that the two are completely coincident.
  • the working method of testing using the above-mentioned automated test equipment for serial plugging and unplugging includes the following steps:
  • the handling device 1 loads the product to be tested to the loading and unloading station on the test assembly line, and the test assembly line moves one station;
  • the first lifting mechanism 41 rises, so that the first connector contacts the plug hole on the bottom surface of the product, completing a series plug-in, and at the same time the second lifting mechanism 61 rises, so that the second connector 62 contacts the plug of the double plug adapter 5, completing a secondary series plug-in, the product is connected to the test host 7 of the corresponding test station, and the test of the station is carried out; after the test is completed, the first lifting mechanism 41 and the second lifting mechanism 61 descend, so that the first connector and the second connector 62 are disconnected, and the assembly line moves one station;
  • step S3 repeat step S2, so that the product completes the corresponding test at each test station, and the handling device 1 unloads the product that has completed the test.
  • step S1 the image acquisition device 8 acquires the position of the plug-in hole on the bottom surface of the product and feeds it back to the controller.
  • the controller controls the conveying device 1 to correct the position of the product so that the product is placed at a determined position on the carrier fixture 3 .

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Abstract

本发明提供一种串联插拔的自动化测试设备，包括搬运装置和测试流水线，所述测试流水线上设有上下料工位和多个测试工位，所述搬运装置用于产品的上下料，所述上下料工位和所述多个测试工位上均设有用于放置产品的载台治具，所述载台治具上设有一次插拔组件和双插头转接件，在所述测试流水线下方对应所述多个测试工位的位置均设有二次插拔组件，每个测试工位对应一个测试主机来实现一个软件功能测试，利用一次插拔组件和二次插拔组件分别实现产品与治具、治具与测试主机的串联自动插拔，避免了人工作业，提高工作效率。本发明还提供了上述串联插拔的自动化测试设备的工作方法。

Description

一种串联插拔的自动化测试设备及其工作方法 技术领域
本发明属于自动化测试技术领域，特别是涉及一种串联插拔的自动化测试设备及其工作方法。
 背景技术
电子产品检测中，通常需要进行不同的软件功能测试，当测试软件数量较少时，可以集成于同一测试主机上进行测试，但当测试软件数量较多时，由于测试主机不能自动拨码则一般分设在不同的测试主机上进行测试，即同一产品要流经不同测试工位分别进行该工位对应的功能测试，这就要求工位每移动一次，都需要将产品、测试主机进行导通和切断。
现有技术中，将产品固定于治具上，产品与治具上接头的导通一般为自动化作业，治具上接头的另一端与测试主机的插拔则为人工作业，自动化程度低，增加人工成本，在人工作业中，单调的插拔工作也容易引起疲劳，极大可能会对插接口造成一定程度上的损坏，影响测试的进行。另外，治具上接头的另一端与测试主机的自动化插拔也对定位精度提出更高的要求。
因此，有必要提出一种能够保证插拔精度的串联插拔的自动化测试设备及其工作方法。
 发明内容
本发明提供一种串联插拔的自动化测试设备及其工作方法，可大大提高测试效率，提高插头重复使用寿命，节约测试成本。
本发明的其他目的和优点可以从本发明所揭露的技术特征中得到进一步的了解。
为了达到上述部分或全部目的或是其他目的，本发明提供的串联插拔的自动化测试设备，包括搬运装置和测试流水线，所述测试流水线上设有上下料工位和多个测试工位，所述搬运装置用于产品的上下料，所述上下料工位和所述多个测试工位上均设有用于放置产品的载台治具，所述载台治具上设有一次插拔组件和双插头转接件，在所述测试流水线下方对应所述多个测试工位的位置均设有二次插拔组件，所述一次插拔组件用于使产品与所述双插头转接件的一端连接，所述二次插拔组件用于使所述双插头转接件的另一端与所述测试工位对应的测试主机连接。工作时利用一次插拔组件实现产品与治具的自动插拔，利用二次插拔组件实现治具与测试主机的自动插拔，通过两次自动插拔实现测试主机与产品的串联连接，避免了人工作业，提高工作效率。
具体的，所述载台治具上还设有用于固定产品的固定结构，所述产品的底面设有插接孔；
所述一次插拔组件包括第一升降机构和第一接头，所述第一接头通过导线、接头与所述双插头转接件的一端导通，所述第一升降机构驱动所述第一接头与所述产品上的插接孔导通/切断；
所述二次插拔组件包括第二升降机构和第二接头，所述第二升降机构驱动所述第二接头与所述双插头转接件的另一端导通/切断，所述第二接头通过导线、接头与所述测试工位对应的所述测试主机导通，所述测试主机用于提供该测试工位所进行的测试程序。
产品上料后在每一个测试工位均要进行测试主机与产品的线路导通，通过在载台治具上设置双插头转接件，利用一次插拔组件使双插头转接件一端与产品电连接，利用二次插拔组件使双插头转接件另一端与测试主机电连接，实现两次串联插接通电，当测试完成后，驱动第一升降机构、第二升降机构下降，拔下第一接头和第二接头，产品、载台治具在测试流水线上移动一个工位，再次进行两次串联插拔进行另一功能测试，直至所有测试工位上均完成测试后由搬运装置进行下料。
所述第二接头为柔性接头，包括安装座和活动连接于所述安装座上的仿形压头，所述安装座连接所述第二升降机构，所述仿形压头包括底板和设于所述底板上的探针，所述探针周围设有凸起的绝缘壁，所述绝缘壁上设有用于插接导向的斜面；所述底板通过弹性件、固定件连接所述安装座，所述底板上设有仿形通孔，所述固定件穿过所述仿形通孔连接于所述安装座上。连接测试主机的第二接头需要在第二升降机构的驱动下适配于测试流水线上的所有载台治具上的双插头转接件，由于存在安装公差、运动误差，即使定期调试二次插拔组件的安装位置也很难保证第二接头能够每次都与双插头转接件完全正对，将第二接头设置为柔性接头，在插接过程中利用仿形压头上的绝缘壁进行导正，从而保证插接后探针能够对正通电，提高电连接稳定性。固定件限定了仿形压头与安装座之间的活动量，即起到粗定位作用，同时在插拔过程中允许一定的活动范围。
所述第二升降机构包括依次连接的驱动件、第一连板、第二连板、第三连板、第四连板和安装板，所述第一连板用于安装所述驱动件，所述第二连板、第三连板、第四连板分别在θ向、Y向、X向上位置可调，所述安装板安装于所述测试流水线下方的台面或地面上，使所述第二接头正对所述双插头转接件。可以定期或按照产品分批次在测试前调节二次插拔组件的安装位置，从安装精度上提高第二接头与双插头转接件的对正精度。
所述固定结构包括若干感应承载柱和若干活动吸盘，所述感应承载柱和所述活动吸盘穿过所述载台治具上表面朝上固定产品；所述感应承载柱包括第一安装块和安装于所述第一安装块上的遮光销、支柱、光电传感器，所述支柱凸出于所述第一安装块上表面，所述遮光销通过弹性件活动套装在所述支柱内部，且初始高度高于所述支柱，所述光电传感器位于所述遮光销下方，用于感应所述遮光销的位置，所述第一安装块安装于所述载台治具上；所述活动吸盘包括第二安装块和安装于所述第二安装块上的吸嘴、吸杆、夹紧组件和限位件，所述吸嘴连接于所述吸杆上，所述吸杆外周依次套设有弹性件和直线轴承，所述夹紧组件用于在所述直线轴承下方夹紧或松开所述吸杆，所述限位件设于所述第二安装块上，位于所述吸杆一端外周，用于限定所述吸嘴的初始位置为低于所述遮光销且高于所述支柱，所述第二安装块安装于所述载台治具上。
当产品放置于载台治具上，遮光销、吸嘴受力挤压弹性件向下运动，根据光电传感器的反馈信号判断产品已经放置到位，此时夹紧组件动作以夹紧吸杆，使吸嘴保持在这个高度上，防止第一接头向上插接时产品受力向上运动，导致插接失败。
所述测试流水线一侧对应所述上下料工位的位置设有图像采集装置，用于产品放置时的定位，所述测试流水线、载台治具对应镜头位置均设有通孔，所述搬运装置和所述图像采集装置均与控制器电连接。在上料时可根据产品来料位置设置搬运装置的合理路径来调整、补正产品的放置位置，使产品在载台治具上的放置位置准确，保证一次插拔的位置精度。
所述测试流水线为转盘，所述转盘通过凸轮分布器安装于基座上，所述载台治具呈中心对称设于所述转盘上，所述二次插拔组件设于所述基座上。转盘式流水线节约空间，上下料集成于转盘上的一个工位，可使用搬运装置完成产品的上料和下料，节约设备成本。
所述转盘中心设有用于固定电滑环的架体，电滑环用于过电线、气管，在转盘旋转时维持电路、气路供应，所述机座安装于调平支架上，安装时保证基座水平，从而保证第一接头、第二接头的垂直升降，避免因探针倾斜造成的插接问题。
一种串联插拔的自动化测试设备的工作方法，包括如下步骤：
S1、搬运装置将待检测产品上料至测试流水线上的上下料工位，测试流水线移动一个工位；
S2、第一升降机构上升，使第一接头与产品底面的插接孔接触，完成一次串联插接，同时第二升降机构上升，使第二接头与双插头转接件的插头接触，完成二次串联插接，产品与对应测试工位的测试主机导通，进行该工位的测试；测试完成后第一升降机构、第二升降机构下降，使第一接头、第二接头均断开，流水线移动一个工位；
S3、重复步骤S2，使产品在每个测试工位完成对应的测试，所述搬运装置对完成测试的产品进行下料。
在上述步骤S1中，图像采集装置采集产品底面插接孔的位置，并反馈至控制器，所述控制器控制搬运装置对产品位置进行补正，使产品放置至载台治具上的确定位置。
与现有技术相比，本发明的有益效果主要包括：
1.本发明提供的串联插拔的自动化测试设备，将上下料工位和多个测试工位设于测试流水线上，每个测试工位对应一个测试主机来实现一个软件功能测试，利用一次插拔组件和二次插拔组件实现产品与治具、治具与测试主机的两次串联自动插拔，避免了人工作业，提高工作效率；
2. 本发明提供的串联插拔的自动化测试设备，将第二接头设为柔性接头，在升降插接过程中可自动导正，保证插接的有效性，防止接头损坏，解决了不同测试主机与不同载台治具由于安装位置的公差而引起的位置对正问题，降低了设备的安装难度；
3. 本发明提供的串联插拔的自动化测试设备，利用感应承载柱和活动吸盘相互配合固定产品，在插拔过程中不会发生位移，保证了吸附的稳固性。
为让本发明的上述和其他目的、特征和优点能更明显易懂，下文特举优选实施例，并配合附图，作详细说明如下。
 附图说明
为了更清楚地说明本发明具体实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例的串联插拔的自动化测试设备的结构示意图；
图2为本发明实施例的串联插拔的自动化测试设备的左视图；
图3为本发明实施例中载台治具的结构示意图；
图4为本发明实施例中第一升降机构的结构示意图；
图5为本发明实施例中第二升降机构的结构示意图；
图6为本发明实施例中第二接头的结构示意图；
图7为本发明实施例中感应承载柱的结构示意图；
图8为本发明实施例中活动吸盘的结构示意图；
图9为本发明实施例中图像采集装置的结构示意图；
图10为本发明实施例中相机视野与第一接头相对位置示意图。
附图标记：1-搬运装置，2-转盘，20-基座，21-架体，3-载台治具，31-感应承载柱，310-第一安装块，311-遮光销，312-支柱，313-光电传感器，32-活动吸盘，320-第二安装块，321-吸嘴，322-吸杆，323-直线轴承，324-夹紧组件，3241-第二气缸，3242-V嘴斜推，3243-夹片，325-限位件，4-一次插拔组件，41-第一升降机构，410-安装结构，411-第一气缸，412-滑台，413-转换台，414-升降台，415-力矩传感器，416-位置传感器，417-限位螺丝，418-缓冲器，419-刻度尺，5-双插头转接件，6-二次插拔组件，61-第二升降机构，611-驱动件，612-第一连板，613-第二连板，614-第三连板，615-第四连板，616-安装板，62-第二接头，621-安装座，622-仿形压头，6220-底板，6221-探针，6222-绝缘壁，623-锥头螺丝，63-测试盒，7-测试主机，8-图像采集装置，81-相机，82-第一方向移动组件，83-第二方向移动组件，84-环形光源，100-产品。
 实施方式
有关本发明的前述及其他技术内容、特点与功效，在以下配合参考图式的一优选实施例的详细说明中，将可清楚的呈现。以下实施例中所提到的方向用语，例如：上、下、左、右、前或后等，仅是参考附加图式的方向。因此，使用的方向用语是用来说明并非用来限制本发明。
实施例
结合图1-3所示的本实施例的串联插拔的自动化测试设备，包括搬运装置1和测试流水线，所述测试流水线上设有上下料工位和多个测试工位，搬运装置1用于产品100的上下料，所述上下料工位和所述多个测试工位上均设有用于放置产品的载台治具3，搬运装置1将产品100在上下料工位放置至载台治具3上，载台治具3上设有固定产品的固定结构，产品100底面设有插接孔。在本实施例中，所述测试流水线为转盘2，在其他实施例中所述测试流水线也可以为皮带、辊轮等形式形成的或直线或方形或环形的流水线。
转盘2通过凸轮分布器（图中未示出）安装于基座20上，载台治具3呈中心对称设于转盘2上，机座20安装于调平支架上，在安装时调平基座20、转盘2的表面水平度。
载台治具3为双层结构，产品100固定于上层，两层之间设有一次插拔组件4，下层设有双插头转接件5，在基座20上对应所述多个测试工位的位置均设有二次插拔组件6。通过一次插拔组件4实现双插头转接件5的一端与产品100导通/切断，通过二次插拔组件6实现双插头转接件5的另一端与对应测试工位上的测试主机7导通/切断，测试主机7放置于基座20上或调平支架上，用于提供该测试工位所进行的测试程序，两次插接串联后产品100即可进行对应测试主机7内的测试程序。
如图4所示，一次插拔组件4包括第一升降机构41和第一接头（图中未示出），所述第一接头通过导线、接头与双插头转接件5的一端导通，第一升降机构41驱动所述第一接头与产品100上的插接孔导通/切断。
第一升降机构41包括安装结构410以及设于安装结构410上的第一气缸411、升降台414，安装结构410设于载台治具3上，例如载台治具3的底面或侧面，升降台414在第一气缸411的驱动下运动，第一接头连接于升降台414上。在本实施例中，为了提高升降运动的直线度，在安装结构410上设置了滑台412，升降台414沿滑台412上的滑轨运动。为了反馈第一接头的插接力，第一气缸411的活塞杆连接转换台413，转换台413与升降台414通过力矩传感器415连接，同时转换台413也沿所述滑轨运动。当第一气缸411的活塞杆回缩时，转换台413上升，同时推动升降台414上升，当受到插接阻力时，力矩传感器415反馈这个阻力，阻力的最大值即为插接力，在插拔的过程中力矩感应器415可采集每次插接力的大小，并将其留存，作为插拔记录传输至外部控制系统。在滑台412侧面还设有用于获取第一接头位移的刻度尺419、限定转换台413最大位移的限位螺丝417、起到缓冲作用的缓冲器418，在安装结构410顶部还设有用于反馈升降台414位置的位置传感器416，当位置传感器416发出反馈信号时说明第一接头插接到位，控制器控制第一气缸411停止运动。其中刻度尺419、限位螺丝417、缓冲器418、位置传感器416的设置机理均为自动化设备领域的公知常识，在此不再赘述。
如图5所示，二次插拔组件6包括第二升降机构61和第二接头62，第二升降机构61驱动第二接头62与双插头转接件5的另一端导通/切断，第二接头62通过导线、接头与所述测试工位对应的测试主机7导通。
第二升降机构61包括依次连接的驱动件611、第一连板612、第二连板613、第三连板614、第四连板615和安装板616，第一连板612用于安装驱动件611，第二连板613、第三连板614、第四连板615分别在θ向、Y向、X向上位置可调，具体的，第四连板615设有X向的腰形孔，第三连板614设有Y向的腰形孔，第二连板613设有θ向的腰形孔，利用螺丝穿过腰形孔连接，使第二接头62正对双插头转接件5，安装板616安装于基座20上。
由于存在安装公差、运动误差，即使定期调试设备中各部件的安装位置也很难保证第二接头能够每次都与双插头转接件完全正对，因此第二接头62设为柔性接头。如图6所示，第二接头62包括安装座621和活动连接于安装座621上的仿形压头622，安装座621连接第二升降机构61，仿形压头622包括底板6220和设于底板6220上的探针6221，探针6221周围设有凸起的绝缘壁6222，绝缘壁6222上设有用于插接导向的斜面；底板6220通过弹性件、固定件连接安装座621，底板6220上设有仿形通孔，所述固定件穿过所述仿形通孔连接于安装座621上。在本实施例中，所述固定件为锥头螺丝623，在安装座621的四角各设置一个，所述弹性件为弹簧，在安装座621两端各设置一个，在其他实施例中，所述固定件也可以为销钉等，所述弹性件也可以使用其他弹性胶圈、弹片等代替；同样的，所述固定件和弹性件的数量也可以按需设置。第二接头62通过安装座621安装于驱动件611的活动端。在驱动件611上升进行插接过程中，仿形压头622的位置与双插头转换件5的插口有一定误差，此时绝缘壁6222上端部的斜面起到导向作用，由于底板6220与安装座通过弹性件连接，允许一定范围的活动空间，可以在插接过程中逐渐补正位置，避免损坏插接口，降低设备安装时的精度要求，减小安装难度。
在实际生产中，零部件的生产公差和安装公差通常很小，锥头螺丝623既提高了连接强度，又限定了仿形压头622与安装座621之间的活动量，即起到粗定位作用，同时在插拔过程中允许一定的活动范围。
同样的，第一接头也采用与第二接头62相同的结构，允许产品100放置时的少许误差。
针对不同产品测试时可能会选用不同的测试主机7，测试主机7的接头型号也可能不同，为了提高设备的通用性或者适用范围，如图5所示，在安装板616一侧还设有测试盒63，测试盒63上设有输入端口和输出端口，所述输入端口连接对应的测试主机7，所述输出端口连接第二接头62连接导线的一端，即通过选用合适的测试盒63来起到转换接头型号的作用。
在本实施例中，产品100为车载显示屏，其插接口位于曲面上，因此使用固定位置的吸盘来吸附固定产品100存在吸盘高度变化的情况，安装难度较大，即使按照不同高度设置吸盘也会因安装公差存在吸附不牢固的问题，因此在本实施例中，如图3所示，载台治具3上的固定结构包括若干感应承载柱31和若干活动吸盘32，感应承载柱31和活动吸盘32穿过载台治具3上表面朝上固定产品。其中活动吸盘32的数量为3个，呈三角形设置于插接口周围，感应承载柱31的数量为1个，位于插接口的一角，为了提高支撑作用，在插接口的另外三角还设置了支撑柱，在产品100放置到位时起到支撑作用，在另外的实施例中，感应承载柱31、活动吸盘32和支撑柱可以按需设置。
如图7所示，感应承载柱31包括第一安装块310和安装于第一安装块310上的遮光销311、支柱312、光电传感器313，支柱312凸出于第一安装块310上表面，遮光销311通过弹性件活动套装在支柱312内部，且初始高度高于支柱312，光电传感器313位于遮光销311下方，用于感应遮光销311的位置，第一安装块310安装于载台治具3上。
如图8所示，活动吸盘32包括第二安装块320和安装于第二安装块320上的吸嘴321、吸杆322、夹紧组件324和限位件325，吸嘴321连接于吸杆322上，吸杆322外周依次套设有弹性件和直线轴承323，夹紧组件324用于在直线轴承323下方夹紧或松开吸杆322，限位件325设于第二安装块320上，位于吸杆322一端外周，用于限定吸嘴321的初始位置为低于遮光销311且高于支柱312，在本实施例中限位件325为抱紧环，在其他实施例中也可以为销钉、螺母等，第二安装块320安装于载台治具3上。
夹紧组件324包括第二气缸3241、由第二气缸3241驱动的V嘴斜推3242和两个正对设置的夹片3243，夹片3243与V嘴斜推3242相邻的一端通过弹簧连接，另一端通过销钉转动连接，当第二气缸3241驱动V嘴斜推3242朝向夹片3243运动时，夹片3243绕销钉转动使与V嘴斜推3242相邻的一端相分离，吸杆322可升降，当第二气缸3241驱动V嘴斜推3242远离夹片3243运动时，夹片3243在弹簧作用下复位抱紧吸杆322，使吸嘴321位置固定。
当产品100放置至载台治具3上时，遮光销311、吸杆322在产品100重力作用下克服弹力向下运动，遮光销311的位置变化被光电传感器313反馈，说明产品100已放置到位，此时吸嘴321吸附产品100，第二气缸3241驱动V嘴斜推3242远离夹片3243运动。当遮光销311在弹力作用下复位后，说明载台治具3上无产品，此时第二气缸3241驱动V嘴斜推3242朝向夹片3243运动。
在本实施例中，三个活动吸盘32的吸附、定位均由同一感应承载柱31的信号控制即可达到使用效果，在不考虑成本的情况下，也可以在每一活动吸盘32旁边设置一感应承载柱31，同时将活动吸盘32的气路、感应承载柱31的电路分开，各自控制，此时允许产搬运装置1抓取产品100后产品100表面不水平，存在倾斜。
由于载台治具3上设有感应承载柱31和活动吸盘32，因此转盘2上设有气路、电路，在转盘2运动过程中为了防止气路、电路受到转动干扰，如图1和图2所示，在转盘2中心设有用于固定电滑环的架体21。
在上下料过程中，搬运装置1需要将产品100放置至载台治具3的确定位置上，实际中，可以利用搬运装置1在确定位置经过确定路径来实现，也可以利用搬运装置1在搬运过程中进行位置补正，在本实施例中，结合图2、图3和图9所示，在基座20上设置了图像采集装置8来采集产品100上插接孔的位置，在放置过程中搬运装置1进行位置补正，基座20、载台治具3对应镜头位置均设有通孔，搬运装置1和图像采集装置8均与控制器电连接。图像采集装置8包括相机81、驱动相机81沿第一方向运动的第一方向移动组件82、驱动第一方向移动组件82沿第二方向运动的第二方向移动组件83，所述第一方向与所述第二方向相垂直，用于调节相机81的位置，为了提高照片清晰度，在载台治具3上还设有环形光源84。此时搬运装置具有X向、Y向、θ向和Z向自由度。具有该四个自由度的搬运装置以及图像采集装置与搬运装置配合进行取放物体的位置补正属于自动化设备的常规设计，在此不再赘述。
由于第一接头需与产品100上的插接口正对，为了避免第一接头遮挡相机81，如图10所示，图中方框A表示相机21视野，圆圈B表示第一接头外轮廓，则第一接头仅有部分轮廓在相机21的视野范围内，产品100的插接口只要有一部分出现在相机10视野内即可，外部控制器会根据图像使产品100的插接口对应的该部分轮廓与第一接头重合，即可保证两者完全重合。
利用上述串联插拔的自动化测试设备进行测试的工作方法包括如下步骤：
S1、搬运装置1将待检测产品上料至测试流水线上的上下料工位，测试流水线移动一个工位；
S2、第一升降机构41上升，使第一接头与产品底面的插接孔接触，完成一次串联插接，同时第二升降机构61上升，使第二接头62与双插头转接件5的插头接触，完成二次串联插接，产品与对应测试工位的测试主机7导通，进行该工位的测试；测试完成后第一升降机构41、第二升降机构61下降，使第一接头、第二接头62均断开，流水线移动一个工位；
S3、重复步骤S2，使产品在每个测试工位完成对应的测试，搬运装置1对完成测试的产品进行下料。
其中在步骤S1中，图像采集装置8采集产品底面插接孔的位置，并反馈至控制器，所述控制器控制搬运装置1对产品位置进行补正，使产品放置至载台治具3上的确定位置。
以上对本发明所提供的串联插拔的自动化测试设备及其工作方法进行了详细介绍，本文仅应用具体个例对本发明的结构及工作原理进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及核心思想。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以对本发明进行若干改进和修饰，这些改进和修饰也落入本发明权利要求保护的范围内。

Claims (10)

  1. 一种串联插拔的自动化测试设备，其特征在于，包括搬运装置（1）和测试流水线，所述测试流水线上设有上下料工位和多个测试工位，所述搬运装置（1）用于产品的上下料，所述上下料工位和所述多个测试工位上均设有用于放置产品的载台治具（3），所述载台治具（3）上设有一次插拔组件（4）和双插头转接件（5），在所述测试流水线下方对应所述多个测试工位的位置均设有二次插拔组件（6），所述一次插拔组件（4）用于使产品与所述双插头转接件（5）的一端连接，所述二次插拔组件（6）用于使所述双插头转接件（5）的另一端与所述测试工位对应的测试主机（7）连接。
  2. 根据权利要求1所述的串联插拔的自动化测试设备，其特征在于，
    所述载台治具（3）上还设有用于固定产品的固定结构，所述产品的底面设有插接孔；
    所述一次插拔组件（4）包括第一升降机构（41）和第一接头，所述第一接头通过导线、接头与所述双插头转接件（5）的一端导通，所述第一升降机构（41）驱动所述第一接头与所述产品上的插接孔导通/切断；
    所述二次插拔组件（6）包括第二升降机构（61）和第二接头（62），所述第二升降机构（61）驱动所述第二接头（62）与所述双插头转接件（5）的另一端导通/切断，所述第二接头（62）通过导线、接头与所述测试工位对应的所述测试主机（7）导通，所述测试主机（7）用于提供该测试工位所进行的测试程序。
  3. 根据权利要求2所述的串联插拔的自动化测试设备，其特征在于，所述第二接头（62）为柔性接头，包括安装座（621）和活动连接于所述安装座（621）上的仿形压头（622），所述安装座（621）连接所述第二升降机构（61），所述仿形压头（622）包括底板（6220）和设于所述底板（6220）上的探针（6221），所述探针（6221）周围设有凸起的绝缘壁（6222），所述绝缘壁（6222）上设有用于插接导向的斜面；所述底板（6220）通过弹性件、固定件连接所述安装座（621），所述底板（6220）上设有仿形通孔，所述固定件穿过所述仿形通孔连接于所述安装座（621）上。
  4. 根据权利要求2所述的串联插拔的自动化测试设备，其特征在于，所述第二升降机构（61）包括依次连接的驱动件（611）、第一连板（612）、第二连板（613）、第三连板（614）、第四连板（615）和安装板（616），所述第一连板（612）用于安装所述驱动件（611），所述第二连板（613）、第三连板（614）、第四连板（615）分别在θ向、Y向、X向上位置可调，所述安装板（616）安装于所述测试流水线下方的台面或地面上，使所述第二接头（62）正对所述双插头转接件（5）。
  5. 根据权利要求2所述的串联插拔的自动化测试设备，其特征在于，所述固定结构包括若干感应承载柱（31）和若干活动吸盘（32），所述感应承载柱（31）和所述活动吸盘（32）穿过所述载台治具（3）上表面朝上固定产品；
    所述感应承载柱（31）包括第一安装块（310）和安装于所述第一安装块（310）上的遮光销（311）、支柱（312）、光电传感器（313），所述支柱（312）凸出于所述第一安装块（310）上表面，所述遮光销（311）通过弹性件活动套装在所述支柱（312）内部，且初始高度高于所述支柱（312），所述光电传感器（313）位于所述遮光销（311）下方，用于感应所述遮光销（311）的位置，所述第一安装块（310）安装于所述载台治具（3）上；
    所述活动吸盘（32）包括第二安装块（320）和安装于所述第二安装块（320）上的吸嘴（321）、吸杆（322）、夹紧组件（324）和限位件（325），所述吸嘴（321）连接于所述吸杆（322）上，所述吸杆（322）外周依次套设有弹性件和直线轴承（323），所述夹紧组件（324）用于在所述直线轴承（323）下方夹紧或松开所述吸杆（322），所述限位件（325）设于所述第二安装块（320）上，位于所述吸杆（322）一端外周，用于限定所述吸嘴（321）的初始位置为低于所述遮光销（311）且高于所述支柱（312），所述第二安装块（320）安装于所述载台治具（3）上。
  6. 根据权利要求1所述的串联插拔的自动化测试设备，其特征在于，所述测试流水线一侧对应所述上下料工位的位置设有图像采集装置（8），用于产品放置时的定位，所述测试流水线、载台治具（3）对应镜头位置均设有通孔，所述搬运装置（1）和所述图像采集装置（8）均与控制器电连接。
  7. 根据权利要求1-6任一项所述的串联插拔的自动化测试设备，其特征在于，所述测试流水线为转盘（2），所述转盘（2）通过凸轮分布器安装于基座（20）上，所述载台治具（3）呈中心对称设于所述转盘（2）上，所述二次插拔组件（6）设于所述基座（20）上。
  8. 根据权利要求7所述的串联插拔的自动化测试设备，其特征在于，所述转盘（2）中心设有用于固定电滑环的架体（21），所述机座（20）安装于调平支架上。    
  9. 一种串联插拔的自动化测试设备的工作方法，其特征在于，包括如下步骤：
    S1、搬运装置（1）将待检测产品上料至测试流水线上的上下料工位，测试流水线移动一个工位；
    S2、第一升降机构（41）上升，带动第一接头与产品底面的插接孔接触，完成一次串联插接，同时第二升降机构（61）上升，带动第二接头（62）与双插头转接件（5）的插头接触，完成二次串联插接，产品与对应测试工位的测试主机（7）导通，进行该工位的测试；测试完成后第一升降机构（41）、第二升降机构（61）下降，第一接头、第二接头（62）均断开，流水线移动一个工位；
    S3、重复步骤S2，带动产品完成对应测试，所述搬运装置（1）对完成测试的产品进行下料。
  10. 根据权利要求9所述的串联插拔的自动化测试设备的工作方法，其特征在于，在步骤S1中，图像采集装置（8）采集产品底面插接孔的位置，并反馈至控制器，所述控制器控制搬运装置（1）对产品位置进行补正，使产品放置至载台治具（3）上的确定位置。
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