CN113267656A - Test equipment - Google Patents

Test equipment Download PDF

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Publication number
CN113267656A
CN113267656A CN202110731617.0A CN202110731617A CN113267656A CN 113267656 A CN113267656 A CN 113267656A CN 202110731617 A CN202110731617 A CN 202110731617A CN 113267656 A CN113267656 A CN 113267656A
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China
Prior art keywords
probe
module
tested
test
product
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CN202110731617.0A
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Chinese (zh)
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CN113267656B (en
Inventor
景凯凯
程朋昌
王存敬
丁永胜
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Goertek Techology Co Ltd
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Goertek Techology Co Ltd
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Priority to CN202110731617.0A priority Critical patent/CN113267656B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/06Measuring leads; Measuring probes
    • G01R1/067Measuring probes
    • G01R1/073Multiple probes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/06Measuring leads; Measuring probes
    • G01R1/067Measuring probes
    • G01R1/06705Apparatus for holding or moving single probes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/06Measuring leads; Measuring probes
    • G01R1/067Measuring probes
    • G01R1/073Multiple probes
    • G01R1/07392Multiple probes manipulating each probe element or tip individually
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

The invention discloses a test device, which is used for testing a product to be tested, wherein the product to be tested is provided with a plurality of contacts to be tested, the test device comprises a test board, a driving module and a detection module, the test board is provided with a positioning seat, and the positioning seat is used for bearing and fixing the product to be tested; the driving module is arranged on the test board; the detection module comprises a force feedback device and a first probe, and the force feedback device is arranged at the output end of the driving module and is connected with the first probe; the force feedback device is electrically connected with the driving module and is used for detecting the pressure applied to the first probe; the driving module is used for driving the first probe to be close to or far away from the contact to be detected so as to adjust the abutting force of the first probe and the contact to be detected. The test equipment provided by the invention can reliably test the function of the contact to be tested on the product to be tested.

Description

Test equipment
Technical Field
The invention relates to the technical field of product testing, in particular to testing equipment.
Background
The intelligent electronic product often has integrateed multiple detection function, and the detection function needs to be realized with the help of the detection contact on the intelligent electronic product, needs to carry out the functional test that detects the contact before the product is accepted.
In the related technology, taking the impedance test between the detection contacts on the intelligent electronic product as an example, the function test of the detection contacts on the intelligent electronic product mainly has two modes of manual detection and needle inserting tool detection, in the manual detection mode, a detector contacts with a plurality of detection contacts on the intelligent electronic product by means of probes of detection tools such as an ammeter, a voltmeter and the like, and whether the impedance between the detection contacts on the intelligent electronic product is qualified is judged through the numerical values displayed on the ammeter and the voltmeter. In the pricking work detection mode, the test instrument controls the pressing cylinder to drive the probe to contact with the detection contact on the intelligent electronic product according to a test instruction, and the test instrument detects whether the impedance between the detection contacts is qualified or not through the probe. Whether the detection is carried out manually by means of a detection tool or a pricking device, the downward pressure applied by the probe to the detection contact is difficult to accurately control, and when the downward pressure is too small, the probe and the detection contact may slip off from each other to cause poor contact, so that the detection result is inaccurate; when the downward pressure is too large, the probe is easy to damage the detection contact, so that the product is damaged, and the reliability of the two detection modes is poor.
Disclosure of Invention
The invention mainly aims to provide test equipment, and aims to improve the reliability of the test equipment in detecting the functions of contacts on a product to be tested.
To achieve the above object, the present invention provides a test apparatus for testing a product to be tested, the product to be tested having a plurality of contacts to be tested, the test apparatus comprising:
the test bench is provided with a positioning seat which is used for bearing and fixing the product to be tested;
the driving module is arranged on the test board; and
the detection module comprises a force feedback device and a first probe, and the force feedback device is arranged at the output end of the driving module and is connected with the first probe; the force feedback device is electrically connected with the driving module and is used for detecting the pressure applied to the first probe;
the driving module is used for driving the first probe to be close to or far away from the contact to be detected so as to adjust the abutting force of the first probe and the contact to be detected.
In one embodiment of the present invention, the driving module includes a mounting block and a robot arm having an output shaft;
the mechanical arm is provided with a connecting end connected with the test board and a free end far away from the connecting end, and the output shaft movably penetrates through the free end;
the mounting block is arranged at one end of the output shaft and provided with a mounting convex part protruding out of the outer wall of the output shaft, one end of the force feedback device is connected with the mounting convex part, and the other end of the force feedback device is connected with the probe.
In an embodiment of the present invention, the mounting block is provided with a wire passing hole, and the testing device further includes a first wire and a second wire passing through the output shaft and the wire passing hole;
the first lead is connected with the first probe and the mechanical arm, and the second lead is connected with the force feedback device and the mechanical arm.
In an embodiment of the present invention, the testing apparatus further includes a protective cover and a camera module;
the protective cover is arranged on the test board and forms an accommodating cavity with the test board in an enclosing manner, and the protective cover is provided with a feeding port communicated with the accommodating cavity;
the driving module is positioned in the accommodating cavity, the camera module is arranged at the output end of the driving module and is electrically connected with the driving module, and the camera module is used for collecting image information of the contact to be detected;
the positioning seat is movably connected with the test board and can move close to or far away from the camera module through the feeding port.
In an embodiment of the present invention, the testing apparatus further includes a light source module;
the light source module comprises a light source box and a plurality of point light sources, and the light source box is movably connected to the output end of the driving module and is positioned on the lighting side of the camera module; the light source box can move close to or far away from the camera module;
the light source box is provided with an installation cavity and a lighting through hole communicated with the installation cavity, the lighting through hole corresponds to the camera module, and the point light sources are arranged in the installation cavity.
In an embodiment of the present invention, the light source module further includes an adjusting bracket, a mounting plate, and a locking member;
the light source box is arranged on the adjusting bracket, the adjusting bracket is provided with a strip hole, and the strip hole extends along the moving direction of the light source box;
the mounting plate is arranged at the output end of the driving module, the camera module is arranged on the mounting plate, and the side wall of the mounting plate is provided with a plurality of screw holes which are arranged at intervals along the extending direction of the strip holes;
the locking piece penetrates through the strip hole and is in threaded connection with any screw hole, so that the adjusting bracket is fixed with the mounting plate.
In an embodiment of the present invention, the testing apparatus further includes a first driving member and a first guide rail, the first guide rail is disposed on the testing table and passes through the feeding port;
the positioning seat is connected to the guide rail in a sliding mode, the output end of the first driving piece is connected with the positioning seat, and the first driving piece drives the positioning seat to be close to or far away from the camera module to move.
In an embodiment of the present invention, the positioning seat includes a base, a top seat and at least one pressing block;
the top seat is arranged on the base, and the base and the top seat enclose to form an installation space;
the top seat is provided with a positioning groove capable of containing the product to be detected, and at least one through hole penetrates through the top seat;
each pressing block is movably arranged in one through hole and is provided with a pressing end and a transmission end which respectively protrude out of two openings of the through hole;
the test equipment further comprises a first jacking mechanism, the first jacking mechanism is arranged in the installation space, and the jacking mechanism drives each transmission end to drive one pressing end to move close to the bottom wall of the positioning groove, so that the pressing end and the bottom wall of the accommodating groove are matched to clamp and position the product to be tested.
In an embodiment of the present invention, each of the pressing blocks is rotatably connected to a sidewall of one of the through holes by hole-axis fitting;
the positioning seat further comprises at least one elastic piece, and two ends of each elastic piece are respectively connected with one side of the top seat facing the base and the transmission end.
In an embodiment of the present invention, a testing hole communicated with the installation space is formed in the bottom wall of the positioning groove, the testing apparatus further includes a second jacking mechanism and at least one second probe, each second probe is arranged at an output end of the second jacking mechanism, and the second jacking mechanism drives the at least one second probe to pass through the testing hole to abut against a contact to be tested of the product to be tested;
and/or, the test equipment still includes displacement module and at least one third probe, the displacement module is located the base, the third probe is located the output of displacement module, the drive of displacement module is at least one the third probe passes the notch of constant head tank with the contact butt that awaits measuring of the product that awaits measuring.
The test equipment in the technical scheme is used for testing a product to be tested, the product to be tested is provided with a plurality of contacts to be tested, the test equipment comprises a test board, a driving module and a detection module, the test board is provided with a positioning seat, and the positioning seat is used for bearing and fixing the product to be tested; the driving module is arranged on the test board; the detection module comprises a force feedback device and a first probe, and the force feedback device is arranged at the output end of the driving module and is connected with the first probe; the force feedback device is electrically connected with the driving module and is used for detecting the pressure applied to the first probe; the driving module is used for driving the first probe to be close to or far away from the contact to be detected so as to adjust the abutting force of the first probe and the contact to be detected. Therefore, the driving module can drive the first probe to contact with different contacts to be tested on a product to be tested to test the functions of the contacts to be tested, when the first probe contacts with the contacts to be tested, the magnitude of the abutting force between the first probe and the contacts to be tested is detected by the force feedback device and fed back to the driving module, the driving module drives the first probe to be close to or far away from the contacts to be tested according to the force feedback, the abutting force between the first probe and the contacts to be tested is adjusted to be proper, the first probe is prevented from being over-pressed or the first probe is prevented from being in poor contact with the contacts to be tested, and the reliability of testing the functions of the contacts on the product by the testing equipment is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a test apparatus according to the present invention;
FIG. 2 is a partial block diagram of the test apparatus of FIG. 1;
FIG. 3 is a partial block diagram of the test apparatus of FIG. 2;
FIG. 4 is a structural diagram of the positioning seat and the displacement module in FIG. 2;
FIG. 5 is a cross-sectional view of the positioning socket of FIG. 4;
FIG. 6 is a block diagram of the first jack mechanism of FIG. 4;
fig. 7 is a structural view of a second jacking mechanism in fig. 4.
The reference numbers illustrate:
Figure BDA0003136653690000051
Figure BDA0003136653690000061
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout this document, "and/or" is meant to include three juxtaposed aspects, exemplified by "A and/or B," including either the A aspect, or the B aspect, or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The embodiment of the invention provides a test device, which is used for testing a product to be tested, wherein the product to be tested is provided with a plurality of contacts to be tested, and as shown in a combined drawing 1 and a drawing 2, the test device comprises a test bench 1, a driving module 2 and a detection module 3, the test bench 1 is provided with a positioning seat 10, and the positioning seat 10 is used for bearing and fixing the product to be tested; the driving module 2 is arranged on the test board 1; the detection module 3 comprises a force feedback device 31 and a first probe 32, wherein the force feedback device 31 is arranged at the output end of the driving module 2 and is connected with the first probe 32; the force feedback device 31 is electrically connected with the driving module 2 and is used for detecting the pressure applied to the first probe 32; the driving module 2 is configured to drive the first probe 32 to approach or depart from the contact to be tested, so as to adjust a pressing force between the first probe 32 and the contact to be tested.
In this embodiment, the testing platform 1 is used to install and fix the driving module 2, the testing module and the positioning seat 10, and the positioning seat 10 can be provided with a groove or a cavity structure capable of accommodating and positioning a product to be tested, so that the product to be tested is limited in the groove or the cavity structure, and the product to be tested is fixed on the positioning seat 10.
The driving module 2 is used for driving the detection module 3 to move close to or away from the positioning seat 10, and the driving module 2 includes but is not limited to a three-dimensional moving module, so that the driving module 2 can drive the detection module 3 to move in the X-axis direction, the Y-axis direction and the Z-axis direction of a three-dimensional rectangular coordinate system, the detection module 3 can move in various postures, and can be close to the positioning seat 10 from multiple angles, and a product to be tested on the positioning seat 10 can be tested more flexibly.
The test module is used for testing products to be tested, and the products to be tested include but not limited to intelligent wearing products such as intelligent watches and intelligent bracelets, are provided with a plurality of contacts to be tested on the products to be tested, and the contacts to be tested can be the detection contacts of the product sensor to be tested, input and output contacts, signal contacts and the like. The testing module comprises a force feedback device 31 and a first probe 32, the first probe 32 is driven by the driving module 2 to contact with a contact to be tested of a product to be tested, the force feedback device 31 detects the pressure of the first probe 32 from the contact to be tested, a controller is arranged in the driving module 2, the force feedback device 31 feeds the detected pressure back to the controller in the form of an electric signal, the controller controls the output end of the driving module 2 to drive the first probe 32 to be close to or far away from the contact to be tested so as to adjust the interaction force between the first probe 32 and the contact to be tested, the detected pressure of the first probe 32 is fed back to the driving module 2 through the force feedback device 31, the driving module 2 controls and corrects the position of the first probe 32 according to the feedback, the abutting force between the first probe 32 and the contact to be tested is appropriate, and the first probe 32 and the contact to be tested are prevented from being abutted and damaging the contact to be tested, and the first probe 32 is prevented from contacting the contact point to be tested too loosely, so that the first probe 32 is prevented from contacting the contact point to be tested badly, and the accuracy and reliability of the test module for testing the product to be tested are ensured. The function detection of the test module on the product to be tested includes, but is not limited to, impedance detection on a circuit module of the product to be tested, for example, two different contacts to be tested are connected to the test circuit, and whether the impedance of the circuit between the two contacts to be tested is qualified is detected. The first probe 32 can be in contact with a contact to be tested on the product to be tested, the first probe 32 can be electrically connected to the testing instrument, and the other contact to be tested of the product to be tested is connected to the testing instrument, so that the testing instrument can detect the impedance between the two contacts to be tested. It can be understood that a plurality of test modules can be disposed at the output end of the driving module 2, so that the first probes 32 of the plurality of test modules respectively contact different contacts to be tested to detect the impedance between the different contacts to be tested.
When the test equipment is used, a product to be tested is fixed on the positioning seat 10, the drive module 2 drives the force feedback device 31 to drive the first probe 32 to contact with a contact to be tested on the product to be tested, the force feedback device 31 detects the pressure on the first probe 32 in real time and feeds the pressure back to the drive module 2 in the form of an electric signal, the drive module 2 drives the force feedback device 31 to drive the first probe 32 to move, the abutting force between the first probe 32 and the contact to be tested is adjusted until the pressure on the first probe 32 detected by the force feedback device 31 is within a target range, at the moment, the abutting force between the first probe 32 and the contact to be tested is proper, the force feedback device 31 sends another electric signal to the first probe 32, so that the drive module 2 does not move between the force feedback device 31 and the first probe 32, and the current abutting state of the first probe 32 and the contact to be tested is maintained, the contact to be tested is functionally tested by the first probe 32.
The driving module 2 in the embodiment of the present invention can drive the first probe 32 to contact with different contacts to be tested on a product to be tested, so as to test functions of the contacts to be tested, when the first probe 32 contacts with the contacts to be tested, the magnitude of the abutting force between the first probe 32 and the contacts to be tested will be detected by the force feedback device 31 and fed back to the driving module 2, and the driving module 2 drives the first probe 32 to approach or separate from the contacts to be tested according to the force feedback, so that the abutting force between the first probe 32 and the contacts to be tested is adjusted to a proper magnitude, thereby preventing the first probe 32 from over-pressing the contacts to be tested or the first probe 32 from contacting with the contacts to be tested, and improving reliability of testing equipment for detecting functions of the contacts on the product.
In an embodiment of the present invention, as shown in fig. 2 and 3, the driving module 2 includes a mounting block 21 and a robot arm 22 having an output shaft 223; the mechanical arm 22 is provided with a connecting end 221 connected with the test bench 1 and a free end 222 far away from the connecting end 221, and an output shaft 223 movably penetrates through the free end 222; the mounting block 21 is provided at one end of the output shaft 223, the mounting block 21 has a mounting convex portion 211 protruding from an outer wall of the output shaft 223, and the force feedback device 31 has one end connected to the mounting convex portion 211 and the other end connected to the probe.
In this embodiment, the mechanical arm 22 is configured to drive the first probe 32 to move in a three-dimensional direction, so that the first probe 32 moves in an X-axis direction, a Y-axis direction and a Z-axis direction of the three-dimensional rectangular coordinate system under the driving of the mechanical arm 22, and thus the position of the first probe 32 in the front-back direction, the left-right direction and the up-down direction is adjusted, so that the first probe 32 can move closer to the positioning seat 10 more flexibly, and the flexibility and accuracy of the alignment between the first probe 32 and the contact to be tested on the product to be tested are improved. The output shaft 223 is the output end of the mechanical wall, the end of the output shaft 223 is connected with the mounting block 21, the mounting block 21 can extend along the radial direction of the output shaft 223, the mounting block 21 is provided with a mounting convex part 211 protruding out of the outer wall of the output shaft 223, the force feedback device 31 is connected to the mounting convex part 211, when the output shaft 223 rotates, the force feedback device 31 is driven to deviate from the axis of the output shaft 223 and rotate around the output shaft 223, so that the force feedback device 31 and the first probe 32 move along a circumferential direction, the relative position between the first probe 32 and the contact to be measured can be adjusted through the output shaft 223, and the flexibility of adjusting the position of the first probe 32 is further improved.
In an embodiment of the present invention, as shown in fig. 3, the mounting block 21 is provided with a wire passing hole, and the testing apparatus further includes a first wire 33 and a second wire 34 passing through the output shaft 223 and the wire passing hole; a first wire 33 connects the first probe 32 and the robotic arm 22 and a second wire 34 connects the force feedback device 31 and the robotic arm 22.
In this embodiment, the output shaft 223 is a hollow shaft member, the first conducting wire 33 and the second conducting wire 34 can be disposed in the hollow cavity of the output shaft 223, and the output shaft 223 can be used as an output end of the mechanical arm 22 on one hand, and can restrict routing of the first conducting wire 33 and the second conducting wire 34 on the other hand, and simultaneously isolate and protect the first conducting wire 33 and the second conducting wire 34. By virtue of the arrangement of the mounting protrusion 211 on the mounting block 21, the force feedback device 31 and the first probe 32 are offset from the axis of the output shaft 223, so that sufficient routing space is reserved for the first wire 33 and the second wire 34, which facilitates the connection of the first wire 33 with the first probe 32 and the robot arm 22, and the connection of the second wire 34 with the force feedback device 31 and the robot arm 22. The mechanical arm 22 may be provided with a controller, and the controller is connected to the first wire 33 and the second guide 34, and is configured to receive a feedback signal transmitted by the force feedback device 31 and the first probe 32, and further control the mechanical arm 22 to drive the output shaft 223 to drive the force feedback device 31 and the first probe 32 to move according to the feedback signal, so as to ensure that the first probe 32 contacts the contact to be tested with a proper force, and ensure accuracy and reliability of the test equipment in performing the function test on the contact to be tested. The force feedback device 31 and the first probe 32 may be directly connected or indirectly connected through an intermediate adapter, which is not limited herein.
In an embodiment of the present invention, as shown in fig. 1 and fig. 2, the testing apparatus further includes a protective cover 4 and a camera module 5; the protective cover 4 is arranged on the test board 1 and is enclosed with the test board 1 to form an accommodating cavity 41, and the protective cover 4 is provided with a feeding port 42 communicated with the accommodating cavity 41; the driving module 2 is positioned in the accommodating cavity 41, the camera module 5 is arranged at the output end of the driving module 2 and is electrically connected with the driving module 2, and the camera module 5 is used for collecting image information of the contact to be tested; the positioning seat 10 is movably connected with the test bench 1 and can move close to or far away from the camera module 5 through the feeding port 42.
In this embodiment, the protective cover 4 is used for isolating and protecting the driving module 2 and the camera module 5 on the test board 1, so that on one hand, the influence of external dust and water vapor on the electrical performance and the mechanical performance of the driving module 2 and the camera module 5 is avoided; on the other hand, the driving module 2 is prevented from being damaged by collision when an operator operates the test equipment; on the other hand, enclose the holding chamber 41 that closes the formation through protection casing 4 and testboard 1, provide the dark environment for module 5 of making a video recording, when avoiding module 5 of making a video recording to gather the image of the contact that awaits measuring on the product that awaits measuring, external environment light influences the degree of accuracy and the definition of module 5 image acquisition of making a video recording to image acquisition's interference. The accommodating cavity 41 can be internally provided with a light source for illuminating the product to be tested, or the camera module 5 is integrally provided with a light source, so that the camera module 5 can collect the image information of the contact to be tested on the product to be tested.
The camera module 5 is used for collecting image information of a contact to be detected on a product to be detected, the driving module 2 drives the force feedback device 31 and the first probe 32 to move close to the contact to be detected according to the image information transmitted by the camera module 5, and adjusts the contact position of the first probe 32 to the contact to be detected, so that the first probe 32 is accurately abutted against the central part of the contact to be detected, if the overall shape of the contact to be detected is irregular, for example, the contact to be detected comprises a plurality of soldering tin contacts, after the camera module 5 collects the overall image information of the contact to be detected, the shape and size parameters of the contact to be detected are analyzed, the center of the soldering tin contact with the largest area in the contact to be detected is extracted as a needle pricking point, so that the first probe 32 is abutted against the needle pricking point, and both the contact to be detected with smaller surface area and the contact to be detected with irregular shape can be assisted by the image extraction and analysis functions of the camera module 5, the first probe 32 can be driven and guided, and accurately contacts with the contact to be tested, so that poor contact between the first probe 32 and the contact to be tested caused by contact between the first probe 32 and the edge part of the contact to be tested is avoided. The camera module 5 can comprise a camera and a lens, wherein the lens is arranged on the camera, and the camera acquires image information of a product to be detected through the lens.
Positioning seat 10 accessible rail groove cooperation and testboard 1 sliding connection, so positioning seat 10 can be located the protection casing 4 outside initially to place the product that awaits measuring on positioning seat 10 fixed, treat that the product that awaits measuring is fixed back on positioning seat 10, can make positioning seat 10 pass pay-off mouth 42 and remove to holding chamber 41, be convenient for make a video recording module 5 gathers the image information of the contact that awaits measuring on the product that awaits measuring in the black of holding chamber 41.
In an embodiment of the present invention, as shown in fig. 2 and fig. 3, the testing apparatus further includes a light source module 6; the light source module 6 comprises a light source box 61 and a plurality of point light sources, the light source box 61 is movably connected to the output end of the driving module 2 and is positioned at the lighting side of the camera module 5; the light source box 61 can move close to or far away from the camera module 5; the light source box 61 is provided with an installation cavity 611 and a lighting through hole 612 communicated with the installation cavity 611, the lighting through hole 612 corresponds to the camera module 5, and the plurality of point light sources are arranged in the installation cavity 611.
In this embodiment, the lighting through hole 612 penetrates through the outer top wall and the outer bottom wall of the light source box 61, an opening communicating with the installation cavity 611 is formed in the hole wall of the lighting through hole 612, the opening is annularly arranged along the hole wall of the lighting through hole 612, so that the lighting through hole 612 is communicated with the installation cavity 611, the cross-sectional area of the lighting through hole 612 is gradually reduced from one side close to the lighting side of the camera module 5 to one side far away from the lighting side of the camera module 5, and the plurality of point light sources are arranged on the top wall of the installation cavity 611 close to the lighting side of the camera module 5 at intervals, so that light emitted by the plurality of electric light sources is emitted from the lower opening of the lighting through hole 612 to the camera module 5 in a more back-to-be-measured mode, and therefore, the improvement of the definition of an image collected by the camera module 5 is facilitated. The point light source includes, but is not limited to, an LED lamp.
In an embodiment of the present invention, as shown in fig. 2 and 3, the light source module 6 further includes an adjusting bracket 62, a mounting plate 63, and a locking member (not shown); the light source box 61 is arranged on the adjusting bracket 62, the adjusting bracket 62 is provided with a strip hole 621, and the strip hole 621 extends along the moving direction of the light source box 61; the mounting plate 63 is arranged at the output end of the driving module 2, the camera module 5 is arranged on the mounting plate 63, and the side wall of the mounting plate 63 is provided with a plurality of screw holes 631 arranged at intervals along the extending direction of the strip holes 621; the locking member is threaded through the bar hole 621 to any of the screw holes 631 to secure the adjustment bracket 62 to the mounting plate 63.
In this embodiment, the locking piece can pass a hole 621 and the screw 631 spiro union of difference, so adjustable adjusting bracket 62 mounted position on mounting panel 63 to adjust the interval between light source box 61 and the module 5 of making a video recording, make light source box 61 provide the illumination effect of different luminance for the module 5 of making a video recording, be favorable to making the module 5 of making a video recording gather the more clear image of the product that awaits measuring. Wherein, the locking piece includes pole portion and cap portion, and pole portion is equipped with the external screw thread that matches with the internal thread of screw 631, and the cap portion is connected in the one end of pole portion, and the pole portion passes a strip hole 621 and a screw 631 spiro union, and the cap portion backstop is spacing in the periphery of strip hole 621, through screwing up or unscrewing the locking piece, realizes adjusting support 62 and mounting panel 63 fixed with breaking away from.
In an embodiment of the present invention, as shown in fig. 2, the testing apparatus further includes a first driving member 7 and a first guide rail 8, the first guide rail 8 is disposed at the testing station 1 and passes through the feeding port 42; the positioning seat 10 is slidably connected to the guide rail, the output end of the first driving member 7 is connected to the positioning seat 10, and the first driving member 7 drives the positioning seat 10 to move close to or far away from the camera module 5.
In this embodiment, the positioning seat 10 may be provided with a sliding groove or a sliding block, the positioning seat 10 is slidably connected to the guide rail through the sliding fit between the sliding groove or the sliding block and the guide rail, and the guide rail may extend toward the driving module 2. The first driving member 7 drives the positioning seat 10 to move along the guide rail, so that the positioning seat 10 can enter the dark environment of the accommodating cavity 41 through the feeding port 42. At the moment, the driving module 2 drives the camera module 5 and the light source module 6 to move above the positioning seat 10, the light source module 6 polishes a product to be measured on the positioning seat 10, the camera module 5 collects image information of a contact to be measured on the product to be measured by means of illumination of the light source module 6, the driving module 2 obtains position coordinates of a center part of the electric shock to be measured according to the image information through analysis and processing, and drives the first probe 32 to accurately abut to the center part of the contact to be measured, so that accurate abutting of the first probe 32 and the contact to be measured is achieved.
In an embodiment of the present invention, as shown in fig. 4 and 5, the positioning seat 10 includes a base 11, a top seat 12, and at least one pressing block 13; the top seat 12 is arranged on the base 11, and the base 11 and the top seat 12 enclose to form an installation space 14; the top base 12 is provided with a positioning groove 121 for accommodating a product to be tested, and the top base 12 is provided with at least one through hole 122 in a penetrating manner; each pressing block 13 is movably arranged in a through hole 122, and each pressing block 13 is provided with a pressing end 131 and a transmission end 132 which respectively protrude out of two openings of the through hole 122; the testing apparatus further includes a first jacking mechanism 141, the first jacking mechanism 141 is disposed in the installation space 14, and the jacking mechanism drives each of the driving ends 132 to drive one of the pressing ends 131 to move close to the bottom wall of the positioning slot 121, so that the pressing end 131 cooperates with the bottom wall of the accommodating slot to clamp and position the product to be tested.
In this embodiment, the positioning groove 121 is used for accommodating and limiting the product to be tested, and the bottom wall of the positioning groove 121 can be provided with a plurality of positioning pins so as to be matched with the positioning holes in the product to be tested in an inserting manner to position the product to be tested. The through hole 122 may be disposed adjacent to the positioning groove 121, and the through hole 122 communicates with the installation space 14. The pressing block 13 can be of a zigzag structure, the pressing block 13 can be rotationally connected with the side wall of the through hole 122 through hole-shaft matching, the pressing end 131 and the transmission end 132 of the pressing block 13 are two end portions of the pressing block 13 which are oppositely arranged, the pressing end 131 of the pressing block 13 can be partially located in the positioning groove 121, and the transmission end 132 of the pressing block 13 can be partially located in the installation space 14. When the product to be tested is placed in the positioning groove 121, the jacking module pushes the transmission end 132 of the pressing block 13, so that the pressing block 13 moves in the through hole 122, the pressing end 131 moves close to the bottom wall of the positioning groove 121, the pressing end 131 is abutted against one side of the product to be tested in the positioning groove 121, which faces away from the bottom wall of the positioning groove 121, and the product to be tested is clamped and positioned between the bottom wall of the positioning groove 121 and the pressing end 131, so that the product to be tested is reliably fixed in the positioning groove 121.
Optionally, the pressing block 13 is provided with a shaft hole, a rotating shaft is arranged on the inner side wall of the through hole 122 in a penetrating manner, the rotating shaft penetrates through the shaft hole, the rotating shaft sleeve is provided with a torsion spring, one end of the torsion spring is connected with the side wall of the through hole 122, the other end of the torsion spring is connected with the side wall of the shaft hole, when the torsion spring is in a natural state, the press-fit end 131 is separated from a product to be tested in the positioning groove 121, the first jacking mechanism 141 pushes the transmission end 132 to drive the torsion spring to rotate, the press-fit end 131 is close to the product to be tested in the positioning groove 121 to move, and the product to be tested is clamped and positioned in a matching manner with the bottom wall of the positioning groove 121. When the first lifting mechanism 141 returns to the original position and disengages from the driving end 132, the torsion spring elastically recovers and drives the pressing end 131 to disengage from the product to be tested, thereby facilitating the taking and placing of the product to be tested in the positioning slot 121.
In an embodiment of the present invention, as shown in fig. 4 and 5, each pressing block 13 is rotatably connected to a sidewall of one through hole 122 by hole-axis fitting; the positioning base 10 further comprises at least one elastic member 15, and two ends of each elastic member 15 are respectively connected to a side of the top base 12 facing the base 11 and a transmission end 132.
In this embodiment, the first jacking mechanism 141 pushes the transmission end 132 to move close to the top seat 12, the transmission end 132 extrudes the elastic member 15 to generate elastic deformation, and the transmission end 132 drives the pressing block 13 to rotate, so that the pressing end 131 is close to and abuts against the product to be tested in the positioning groove 121, and the pressing end 131 and the bottom wall of the positioning groove 121 are matched to clamp and position the product to be tested, thereby realizing the positioning of the product to be tested in the positioning groove 121. When the first jacking mechanism 141 returns to the original position and the pushing force applied to the transmission mechanism is removed, the elastic part 15 is elastically restored and drives the transmission end 132 to drive the pressing end 131 to separate from the product to be tested, so that the product to be tested can be taken out of the positioning groove 121, and when no product to be tested exists in the positioning groove 121, the product to be tested can be conveniently placed into the positioning groove 121 through the avoiding position of the pressing end 131, so that the product to be tested can be conveniently taken out and reliably positioned.
In an embodiment of the present invention, as shown in fig. 5, fig. 6 and fig. 7, the bottom wall of the positioning groove 121 is provided with a testing hole 1211 communicating with the installation space 14, the testing apparatus further includes a second jacking mechanism 16 and at least one second probe 17, each second probe 17 is disposed at an output end of the second jacking mechanism 16, and the second jacking mechanism 16 drives the at least one second probe 17 to pass through the testing hole 1211 to abut against a contact to be tested of a product to be tested; and/or, the test equipment still includes displacement module 18 and at least one third probe 19, and displacement module 18 locates base 11, and third probe 19 locates the output of displacement module 18, and displacement module 18 drive at least one third probe 19 pass the notch of constant head tank 121 and the contact butt that awaits measuring of the product that awaits measuring.
In this embodiment, the top end, the bottom end and the side wall of the product to be tested are provided with the contact points to be tested, the second jacking mechanism 16 drives the second probe 17 to pass through the testing hole 1211 to contact with the contact point to be tested at the bottom end of the product to be tested, and the impedance between the contact point to be tested contacting with the first probe 32 and the contact point to be tested contacting with the second probe 17 can be tested. Similarly, the displacement module 18 drives the third probe 19 to pass through the notch of the positioning groove 121 to contact with the contact to be tested on the top or side wall of the product to be tested, so that the impedance between the contact to be tested contacting with the first probe 32 and the contact to be tested contacting with the third probe 19 can be tested, and thus, the impedance test between the contacts to be tested of the product to be tested can be realized. The second jacking mechanism 16 includes but is not limited to a jacking cylinder 1411, and the displacement module 18 includes but is not limited to a three-dimensional moving module, and is configured to drive the third probe 19 to move in the X-axis direction, the Y-axis direction, and the Z-axis direction of the three-dimensional rectangular coordinate system, so that the third probe 19 is in accurate abutting contact with the contact to be tested at the top of the product to be tested.
Optionally, as shown in fig. 5, fig. 6 and fig. 7, the top base 12 is provided with two through holes 122, the two through holes 122 are respectively located at two opposite sides of the positioning slot 121, the positioning base 10 includes two pressing blocks 13, and each pressing block 13 is movably disposed in one through hole 122. First climbing mechanism 141 includes jacking cylinder 1411 and the kicking block 1421 of being connected with jacking cylinder 1411 output, and in installation space 14 was located to jacking cylinder 1411, the both ends of kicking block 1421 were equipped with two top and hold portion 1422, were formed with between two top and hold portion 1422 and keep away a space 1423. The jacking cylinder 1411 drives the jacking block 1421 to drive the two jacking portions 1422 to abut against the transmission ends 132 of the two pressing blocks 13 respectively, so as to push the two transmission ends 132 to drive the two pressing ends 131 to be matched with the bottom wall of the positioning groove 121, so as to clamp and position the two ends of the product to be detected, and thus, the reliable positioning of the product to be detected in the positioning groove 121 is realized. The second jacking mechanism 16 and the second probe 17 are located in the avoiding space 1423, so that the jacking block 1421, the second jacking mechanism 16 and the second probe 17 do not interfere with each other in space, and the compactness of the structural design of the positioning seat 10 is improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A test apparatus for testing a product under test, the product under test having a plurality of contacts under test, the test apparatus comprising:
the test bench is provided with a positioning seat which is used for bearing and fixing the product to be tested;
the driving module is arranged on the test board; and
the detection module comprises a force feedback device and a first probe, and the force feedback device is arranged at the output end of the driving module and is connected with the first probe; the force feedback device is electrically connected with the driving module and is used for detecting the pressure applied to the first probe;
the driving module is used for driving the first probe to be close to or far away from the contact to be detected so as to adjust the abutting force of the first probe and the contact to be detected.
2. The test apparatus of claim 1, wherein the drive module comprises a mounting block and a robotic arm having an output shaft;
the mechanical arm is provided with a connecting end connected with the test board and a free end far away from the connecting end, and the output shaft movably penetrates through the free end;
the mounting block is arranged at one end of the output shaft and provided with a mounting convex part protruding out of the outer wall of the output shaft, one end of the force feedback device is connected with the mounting convex part, and the other end of the force feedback device is connected with the probe.
3. The test apparatus of claim 2, wherein the mounting block is provided with a wire passing hole, the test apparatus further comprising a first wire and a second wire passing through the output shaft and the wire passing hole;
the first lead is connected with the first probe and the mechanical arm, and the second lead is connected with the force feedback device and the mechanical arm.
4. The test apparatus of any one of claims 1 to 3, further comprising a protective shield and a camera module;
the protective cover is arranged on the test board and forms an accommodating cavity with the test board in an enclosing manner, and the protective cover is provided with a feeding port communicated with the accommodating cavity;
the driving module is positioned in the accommodating cavity, the camera module is arranged at the output end of the driving module and is electrically connected with the driving module, and the camera module is used for collecting image information of the contact to be detected;
the positioning seat is movably connected with the test board and can move close to or far away from the camera module through the feeding port.
5. The test apparatus of claim 4, wherein the test apparatus further comprises a light source module;
the light source module comprises a light source box and a plurality of point light sources, and the light source box is movably connected to the output end of the driving module and is positioned on the lighting side of the camera module; the light source box can move close to or far away from the camera module;
the light source box is provided with an installation cavity and a lighting through hole communicated with the installation cavity, the lighting through hole corresponds to the camera module, and the point light sources are arranged in the installation cavity.
6. The test apparatus of claim 5, wherein the light source module further comprises an adjustment bracket, a mounting plate, and a locking member;
the light source box is arranged on the adjusting bracket, the adjusting bracket is provided with a strip hole, and the strip hole extends along the moving direction of the light source box;
the mounting plate is arranged at the output end of the driving module, the camera module is arranged on the mounting plate, and the side wall of the mounting plate is provided with a plurality of screw holes which are arranged at intervals along the extending direction of the strip holes;
the locking piece penetrates through the strip hole and is in threaded connection with any screw hole, so that the adjusting bracket is fixed with the mounting plate.
7. The test apparatus of claim 4, further comprising a first drive member and a first guide rail, the first guide rail disposed at the test station and passing through the feed port;
the positioning seat is connected to the guide rail in a sliding mode, the output end of the first driving piece is connected with the positioning seat, and the first driving piece drives the positioning seat to be close to or far away from the camera module to move.
8. The test apparatus of any of claims 1 to 3, wherein the positioning socket comprises a base, a top socket, and at least one press block;
the top seat is arranged on the base, and the base and the top seat enclose to form an installation space;
the top seat is provided with a positioning groove capable of containing the product to be detected, and at least one through hole penetrates through the top seat;
each pressing block is movably arranged in one through hole and is provided with a pressing end and a transmission end which respectively protrude out of two openings of the through hole;
the test equipment further comprises a first jacking mechanism, the first jacking mechanism is arranged in the installation space, and the jacking mechanism drives each transmission end to drive one pressing end to move close to the bottom wall of the positioning groove, so that the pressing end and the bottom wall of the accommodating groove are matched to clamp and position the product to be tested.
9. The test apparatus of claim 8, wherein each of the compacts is rotatably coupled to a sidewall of one of the through-holes by hole-axis fitting;
the positioning seat further comprises at least one elastic piece, and two ends of each elastic piece are respectively connected with one side of the top seat facing the base and the transmission end.
10. The testing apparatus according to claim 8, wherein the bottom wall of the positioning slot is provided with a testing hole communicating with the installation space, the testing apparatus further comprises a second jacking mechanism and at least one second probe, each second probe is arranged at an output end of the second jacking mechanism, and the second jacking mechanism drives at least one second probe to pass through the testing hole to abut against a contact to be tested of the product to be tested;
and/or, the test equipment still includes displacement module and at least one third probe, the displacement module is located the base, the third probe is located the output of displacement module, the drive of displacement module is at least one the third probe passes the notch of constant head tank with the contact butt that awaits measuring of the product that awaits measuring.
CN202110731617.0A 2021-06-28 2021-06-28 Test equipment Active CN113267656B (en)

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