Test equipment

Abstract

The application relates to a test device. The test device comprises a mounting frame, a needle bed, a first test mechanism, a second test mechanism and a switching mechanism. The needle bed is arranged on the mounting frame. The needle bed is used for placing a to-be-tested piece. The first test mechanism is fixedly connected in the needle bed. The first test mechanism is configured to be electrically connected with the to-be-tested piece, and is used for performing a function test on the to-be-tested piece. The second test mechanism is arranged in the needle bed in a lifting manner. The first test mechanism is located above the second test mechanism. The second test mechanism is configured to be electrically connected with the to-be-tested piece, and is used for performing an online test on the to-be-tested piece. The switching mechanism is arranged in the needle bed. At least part of the switching mechanism is located below the second test mechanism and is connected with the second test mechanism. The switching mechanism is used for adjusting the height position of the second test mechanism, so that the to-be-tested piece is switched between the function test and the online test. Thus, the same needle bed of the test device has the functions of ICT test and FCT test, and the test efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of circuit board testing technology, and more particularly to a testing device. Background Technology

[0002] A leakage current detection type PCBA (Printed Circuit Board Assembly) is a circuit board installed inside a residual current device (RCD) that has the function of detecting and judging leakage current. When a short circuit or leakage current occurs in the load circuit, it can drive the trip unit to disconnect the load circuit based on the leakage current detection.

[0003] In related technologies, leakage current detection PCBAs require both ICT (In-Circuit Test) and FCT (Functional Circuit Test). Currently, the bed-of-nails test equipment can only perform one test, resulting in low testing efficiency. Summary of the Invention

[0004] This application provides a testing device that improves the testing efficiency of the test piece, thereby at least partially solving the above-mentioned technical problems.

[0005] To achieve the above objectives, this application provides a testing device, comprising:

[0006] Mounting rack;

[0007] A needle bed is provided on the mounting frame, and the needle bed is used to place the test piece;

[0008] A first testing mechanism is fixedly connected to the needle bed. The first testing mechanism is configured to be electrically connected to the test piece and is used to perform functional testing on the test piece.

[0009] The second testing mechanism is vertically and flexibly disposed within the needle bed, and the first testing mechanism is located above the second testing mechanism. The second testing mechanism is configured to be electrically connected to the test piece for performing online testing on the test piece.

[0010] A switching mechanism is disposed within the needle bed, and at least a portion of the switching mechanism is located below and connected to the second testing mechanism, for adjusting the height position of the second testing mechanism so that the test piece switches between the functional test and the online test.

[0011] Optionally, the first testing mechanism is provided with a conductive element; the needle bed includes a test needle plate and a carrier plate located above the test needle plate, the carrier plate being configured to support the test piece;

[0012] The test probe plate is connected to a first probe, and the carrier plate is provided with a clearance hole. One end of the first probe extends toward the test piece and passes through the clearance hole to abut against and electrically connect with the test piece. The other end of the first probe extends toward the first test mechanism and abuts against and electrically connects with one side of the conductive element.

[0013] Optionally, a second probe is connected to the second testing mechanism. One end of the second probe extends toward the first testing mechanism and is configured to abut and be electrically connected to the other side of the conductive element. The other end of the second probe is configured to be electrically connected to the first electrical connector of the needle bed.

[0014] Optionally, when the second testing mechanism is in the first position, the second probe abuts against and is electrically connected to the conductive element; when the second testing mechanism is in the second position, the second probe is disconnected from the conductive element.

[0015] The switching mechanism is used to switch the second testing mechanism between the first position and the second position.

[0016] Optionally, the testing equipment further includes:

[0017] A conveying mechanism includes a conveyor belt for conveying the test piece, wherein the orthographic projection of the conveyor belt is offset from the orthographic projection of the carrier plate.

[0018] A lifting mechanism, connected to the mounting frame, is used to lift the test piece to separate it from the conveyor belt.

[0019] Optionally, the lifting mechanism includes:

[0020] The second driving component is mounted on the base plate of the mounting bracket;

[0021] The lifting rod is connected to the second driving component via a transmission.

[0022] The base plate is provided with a first clearance hole, the second testing mechanism is provided with a second clearance hole, the first testing mechanism is provided with a third clearance hole, and the carrier plate is provided with a clearance notch. The positions of the first clearance hole, the second clearance hole, the third clearance hole, and the clearance notch are corresponding. The lifting rod is configured to pass through the first clearance hole, the second clearance hole, the third clearance hole, and the clearance notch to lift the test piece so that the test piece is separated from the conveyor belt.

[0023] Optionally, at least two carrier plates are provided, and the at least two carrier plates are spaced apart along the transmission direction of the conveying mechanism.

[0024] Optionally, the testing equipment further includes:

[0025] A clamping mechanism is provided on the mounting frame, and the clamping mechanism is located close to the needle bed for clamping the needle bed.

[0026] Optionally, the clamping mechanism includes:

[0027] The third driving component is mounted on the mounting frame and spaced apart from the needle bed;

[0028] A movable component is connected to the third driving component and disposed between the third driving component and the needle bed. The movable component is connected to a driving rod, and the third driving component is configured to drive the movable component to move closer to or away from the needle bed.

[0029] The clamping member has one end rotatably mounted on the mounting frame and the other end used to clamp the needle bed. The clamping member is provided with a connecting channel, and the driving rod is located in the connecting channel.

[0030] The third driving member is configured to drive the movable member closer to or away from the needle bed, so that the driving rod drives the clamping member to rotate.

[0031] Optionally, along the direction from the connecting end to the clamping end of the clamping member, the connecting channel includes an inclined section and a straight section that communicate with each other; wherein, along the direction from the movable member to the needle bed, the inclined section is inclined in a direction away from the movable member.

[0032] Optionally, the mounting frame includes a base plate and a vertical plate arranged at an angle, the needle bed is disposed on the base plate, the third driving member is fixed to one side of the vertical plate, the movable member is located between the other side of the vertical plate and the needle bed, and the clamping member is rotatably mounted on the other side of the vertical plate.

[0033] Optionally, the needle bed is provided with a first electrical connector on the side facing the movable member, and the movable member is provided with a second electrical connector on the side facing the needle bed. The second electrical connector is configured to connect to a central control mechanism. The second electrical connector includes a third probe protruding toward the needle bed. The third probe is configured to abut against the first electrical connector so that the first electrical connector and the second electrical connector are electrically connected.

[0034] Optionally, when the movable member is in the third position, the drive rod is located within the inclined section; when the movable member is in the fourth position, the drive rod is located within the straight section.

[0035] The mounting bracket has a limiting post protruding towards the movable part on its upright plate. The movable part has a limiting hole, and the limiting post passes through the limiting hole. The limiting post is configured to abut against the needle bed when the movable part is in the third position.

[0036] Optionally, the clamping member has a clamping portion protruding toward the needle bed at one end away from the upright plate, and the needle bed is connected to a limiting portion protruding toward the clamping member. The clamping portion is configured to clamp onto the limiting portion when the movable member is in the fourth position.

[0037] Optionally, the base plate is provided with a guide, and the needle bed is slidably mounted on the guide.

[0038] Optionally, the guide includes a vertical part connected to the base plate and a horizontal part connected to the vertical part. The base plate, the vertical part, and the horizontal part together define a groove. The needle bed is connected to a sliding part protruding toward the guide, and the sliding part is slidably installed in the groove.

[0039] Optionally, the third driving member has a piston rod, and a connector is connected to the end of the piston rod, the outer diameter of the connector being larger than the outer diameter of the piston rod;

[0040] The movable component is connected to a connector on the side facing the upright plate. The connector has a connecting hole, and one side of the connector has an installation notch communicating with the connecting hole. The connecting hole includes a first hole segment and a second hole segment. The diameter of the first hole segment is larger than the diameter of the second hole segment, and the second hole segment is located close to the upright plate. The piston rod and the connector are configured to be installed in the connecting hole from the installation notch, with the connector located in the first hole segment and the piston rod located in the second hole segment.

[0041] In the testing equipment of this application embodiment, the test piece is placed on a needle bed. A first testing mechanism within the needle bed performs functional testing on the test piece, and a second testing mechanism within the needle bed performs online testing on the test piece. This allows the same needle bed of the testing equipment to perform both ICT testing and FCT testing functions. The second testing mechanism is vertically and flexibly positioned within the needle bed via a switching mechanism, thereby changing the height of the second testing mechanism to allow the test piece to switch between functional testing and online testing. Thus, two tests can be completed at the location of one needle bed, improving testing efficiency.

[0042] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0045] Figure 1 This is one of the structural schematic diagrams of the test equipment provided in the exemplary embodiments of this application;

[0046] Figure 2 This is a second schematic diagram of the structure of the test equipment provided in the exemplary embodiments of this application;

[0047] Figure 3 This is one of the cross-sectional views of the needle bed provided in the exemplary embodiments of this application;

[0048] Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle;

[0049] Figure 5 This is a second cross-sectional view of the needle bed provided in the exemplary embodiments of this application;

[0050] Figure 6 This is the third schematic diagram of the structure of the test equipment provided in the exemplary embodiments of this application;

[0051] Figure 7 This is a schematic diagram of the structure of the clamping member provided in an exemplary embodiment of this application;

[0052] Figure 8 This is a schematic diagram of the piston rod, connector, and connecting member provided in an exemplary embodiment of this application;

[0053] Figure 9 This is a partial structural diagram of the top of the needle bed provided in an exemplary embodiment of this application;

[0054] Figure 10 This is a schematic diagram of the structure of the first testing mechanism provided in an exemplary embodiment of this application;

[0055] Figure 11 This is a schematic diagram of the structure of the second testing mechanism provided in an exemplary embodiment of this application;

[0056] Figure 12 This is a schematic diagram of the electrical connection between the first probe and the second probe provided in an exemplary embodiment of this application;

[0057] Figure 13 This is a third cross-sectional view of the needle bed provided in the exemplary embodiments of this application;

[0058] Figure 14 This is a schematic diagram of the needle bed provided in an exemplary embodiment of this application.

[0059] Explanation of reference numerals in the attached figures:

[0060] 1. Mounting bracket; 11. Base plate; 12. Vertical plate; 13. First clearance hole; 14. Limiting post; 15. Guide component; 151. Vertical part; 152. Horizontal part; 153. Sliding groove;

[0061] 2. Needle bed; 21. Test needle plate; 211. First probe; 22. Carrier plate; 221. Clearance hole; 222. Clearance notch; 23. First electrical connector; 24. Limiting part; 25. Sliding part; 26. Solenoid valve;

[0062] 3. First testing mechanism; 31. Conductive component; 32. Third clearance hole;

[0063] 4. Second testing mechanism; 41. Second probe; 42. Second clearance hole;

[0064] 5. Test piece;

[0065] 61. Switching mechanism; 62. Pressing mechanism; 63. Pressure bar;

[0066] 7. Conveying mechanism; 71. Conveyor belt;

[0067] 8. Lifting mechanism; 81. Second drive component; 82. Lifting rod;

[0068] 9. Clamping mechanism; 91. Third driving component; 911. Piston rod; 92. Moving component; 93. Driving rod; 94. Clamping component; 941. Clamping part; 95. Connecting channel; 951. Inclined section; 952. Straight section; 910. Second electrical connector; 96. Third probe; 97. Limiting hole; 98. Connector; 99. Connecting component; 991. Connecting hole; 992. First hole section; 993. Second hole section; 994. Mounting notch. Detailed Implementation

[0069] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0070] Reference Figures 1 to 14 This application provides a testing device. The testing device includes a mounting frame 1, a needle bed 2, a first testing mechanism 3, a second testing mechanism 4, and a switching mechanism 61. The needle bed 2 is disposed on the mounting frame 1. The needle bed 2 is used to place a test piece 5. The first testing mechanism 3 is disposed within the needle bed 2. The first testing mechanism 3 is fixedly connected to the needle bed 2. The first testing mechanism 3 is configured to be electrically connected to the test piece 5 for performing functional testing on the test piece 5. The second testing mechanism 4 is vertically detachably disposed within the needle bed 2, and the first testing mechanism 3 is located above the second testing mechanism 4. The second testing mechanism 4 is configured to be electrically connected to the test piece 5 for performing online testing on the test piece 5. The switching mechanism 61 is disposed within the needle bed 2, at least a portion of which is located below and connected to the second testing mechanism 4, for adjusting the height of the second testing mechanism 4 to switch the test piece 5 between functional testing and online testing.

[0071] In this embodiment, a first testing mechanism 3 within the needle bed 2 performs functional testing on the test piece 5, and a second testing mechanism 4 within the needle bed 2 performs online testing on the test piece 5, so that the same needle bed 2 of the testing equipment can perform both ICT testing and FCT testing functions. The second testing mechanism 4 is vertically and vertically mounted within the needle bed 2 via a switching mechanism 61, thereby changing the height position of the second testing mechanism 4 to allow the test piece 5 to switch between functional testing and online testing. Thus, two tests can be completed at the same location on the needle bed 2, improving testing efficiency.

[0072] It is understandable that the first testing unit 3 is used to perform FCT testing on the test piece 5, and the second testing unit 4 is used to perform ICT testing on the test piece 5. The two tests can be performed step-by-step. For example, the second testing unit 4 can be used to perform the ICT test first, and then the first testing unit 3 can be used to perform the FCT test. It should be noted that the test data from the first testing unit 3 and the second testing unit 4 are output to the central control unit independently.

[0073] The first testing mechanism 3 includes a first testing circuit board, on which several first testing modules are integrated. When the first testing mechanism 3 is electrically connected to the test piece 5, the first testing modules can perform FCT testing on the test piece 5 through the transmission of electrical signals.

[0074] The second testing mechanism 4 includes a second testing circuit board, on which several second testing modules are integrated. When the second testing mechanism 4 is electrically connected to the test piece 5, the second testing modules can perform ICT testing on the test piece 5 through the transmission of electrical signals.

[0075] The test piece 5 includes a leakage current detection type PCBA. The test piece 5 can be a single leakage current detection type PCBA or an integrated assembly of multiple leakage current detection type PCBAs. Alternatively, the test piece 5 may also include circuit boards or electrical components of this type, allowing it to be placed on the bed of pins 2 and subjected to FCT testing via the first test mechanism 3 and ICT testing via the second test mechanism 4.

[0076] The switching mechanism 61 switches the position of the second testing mechanism 4 within the needle bed 2 so that the first testing mechanism 3 performs FCT testing on the test piece 5, or the second testing mechanism 4 performs ICT testing on the test piece 5, thereby achieving the switching of the test type of the test piece 5.

[0077] For example, the switching mechanism 61 is connected to the second test mechanism 4 and is used to switch the height position of the second test mechanism 4 so that the second test mechanism 4 can switch between a position electrically connected to the test piece 5 and a position disconnected from the test piece 5.

[0078] The first testing mechanism 3 is fixedly installed inside the needle bed 2, and its position remains unchanged. It can maintain an electrical connection with the test piece 5 at all times during the testing phase. The second testing mechanism 4 is vertically and vertically mounted inside the needle bed 2 via a switching mechanism 61, thereby changing the position of the second testing mechanism 4 to switch the test type of the test piece 5.

[0079] For example, the switching mechanism 61 can switch the height position of the second test mechanism 4, allowing it to switch between a position electrically connected to the test piece 5 and a position disconnected from it. When the second test mechanism 4 is disconnected from the test piece 5, the first test mechanism 3 is electrically connected to it. In this case, the first test mechanism 3 can be used to perform FCT testing on the test piece 5. When the second test mechanism 4 is electrically connected to the test piece 5, the first test mechanism 3 remains electrically connected. In this case, the test module on the first test mechanism 3 can be deactivated via the central control mechanism, preventing the first test mechanism 3 from performing FCT testing and allowing only the second test mechanism 4 to perform ICT testing.

[0080] like Figure 9 and Figure 12As shown, in some embodiments, the first testing mechanism 3 is provided with a conductive element 31. The needle bed 2 includes a test needle plate 21 and a carrier plate 22 located above the test needle plate 21. The carrier plate 22 is configured to carry the test piece 5. The test needle plate 21 is connected to a first probe 211. The carrier plate 22 is provided with a clearance hole 221. One end of the first probe 211 extends toward the test piece 5 and passes through the clearance hole 221 for contacting and electrically connecting with the test piece 5. The other end of the first probe 211 extends toward the first testing mechanism 3 and contacts and electrically connects with one side of the conductive element 31.

[0081] Understandably, the test piece 5 is placed on the upper surface of the carrier plate 22. The upper end of the first probe 211 connected to the test probe plate 21 can pass through the clearance hole 221 and abut against and be electrically connected to the test piece 5. The lower end of the first probe 211 can abut against and be electrically connected to the conductive element 31 of the first test mechanism 3. Thus, the first probe 211 and the conductive element 31 can be used to achieve an electrical connection between the test piece 5 and the first test mechanism 3, so that the FCT test can be performed on the test piece 5 through the first test mechanism 3.

[0082] The first testing mechanism 3 is the first testing circuit board, and the conductive component 31 can be soldered to the first testing circuit board. The electrical connection path is: test piece 5 - first probe 211 - conductive component 31 - first testing circuit board.

[0083] In some embodiments, the first probe 211 includes a needle sleeve, a spring disposed within the needle sleeve, a first needle body disposed within the needle sleeve, and a second needle body disposed within the needle sleeve. One end of the first needle body protrudes from the first end of the needle sleeve, and the other end of the first needle body is movably disposed within the needle sleeve and abuts against one end of the spring. One end of the second needle body protrudes from the second end of the needle sleeve, and the other end of the second needle body is fixedly installed within the needle sleeve and abuts against the other end of the spring. The end of the first needle body protruding from the needle sleeve abuts against one of the test piece 5 and the conductive element 31, and the end of the second needle body protruding from the needle sleeve abuts against the other of the test piece 5 and the conductive element 31. This achieves an electrical connection between the test piece 5 and the conductive element 31.

[0084] In some embodiments, a plurality of first probes 211 are spaced apart on the test probe plate 21. A plurality of clearance holes 221 are provided on the carrier plate 22. Each clearance hole 221 can accommodate one or more first probes 211. By providing a plurality of first probes 211, when the test piece 5 is pressed down by the pressing mechanism 62, the force on the test piece 5 can be dispersed by the plurality of first probes 211, preventing the force from concentrating and causing damage to the test piece 5 or the first probes 211. The number of conductive elements 31 is the same as the number of first probes 211, and the distribution positions of the conductive elements 31 correspond one-to-one with the distribution positions of the first probes 211.

[0085] like Figure 9 As shown, in some embodiments, the upper surface of the test pin plate 21 is connected to multiple positioning pins. These positioning pins cooperate to lock the position of the carrier plate 22. Furthermore, the positioning pins can also be inserted into positioning holes on the test piece 5 to achieve precise placement of the test piece 5.

[0086] like Figure 3 and Figure 4 As shown, in some embodiments, a second probe 41 is connected to the second testing mechanism 4. One end of the second probe 41 extends toward the first testing mechanism 3 and is configured to abut and be electrically connected to the other side of the conductive element 31. The other end of the second probe 41 is configured to be electrically connected to the first electrical connector 23 of the needle bed 2.

[0087] Understandably, the upper end of the second probe 41 abuts against and is electrically connected to the conductive element 31 of the first testing mechanism 3. At this time, the test piece 5 can achieve electrical connection with the second testing mechanism 4 through the first probe 211, the conductive element 31, and the second probe 41, thereby enabling the second testing mechanism 4 to perform ICT testing on the test piece 5. The ICT test data can be transmitted through the second probe 41 to the first electrical connector 23 of the needle bed 2. The first electrical connector 23 can transmit the ICT test data to the central control mechanism, where data processing is performed.

[0088] The second testing mechanism 4 is a second testing circuit board, and the second probe 41 can be soldered to the second testing circuit board. The electrical connection path is: test piece 5 - first probe 211 - conductive component 31 - second probe 41 - second testing circuit board.

[0089] In some embodiments, the structure of the second probe 41 is the same as that of the first probe 211, and also includes a needle sleeve, a spring disposed within the needle sleeve, a first needle body disposed within the needle sleeve, and a second needle body disposed within the needle sleeve.

[0090] In some embodiments, the number of second probes 41 is the same as the number of conductive elements 31, and the distribution positions of the second probes 41 correspond one-to-one with the distribution positions of the conductive elements 31.

[0091] It should be noted that after the first testing unit 3 performs the FCT test on the test piece 5, the FCT test data is not transmitted to the central control unit through the path of the second probe 41. The first testing unit 3 can directly transmit the FCT test data to the central control unit by connecting a data cable or other means.

[0092] like Figures 3 to 5As shown, in some embodiments, when the second testing mechanism 4 is in the first position, the second probe 41 abuts against and is electrically connected to the conductive element 31. When the second testing mechanism 4 is in the second position, the second probe 41 is disconnected from the conductive element 31. The switching mechanism 61 is used to switch the second testing mechanism 4 between the first and second positions.

[0093] Understandably, the switching mechanism 61 can drive the second testing mechanism 4 to move up and down inside the needle bed 2, thereby switching the second testing mechanism 4 between a first position and a second position. When the second testing mechanism 4 is in the first position, the second probe 41 abuts against and is electrically connected to the conductive element 31. At this time, the test piece 5 can be electrically connected to the second testing mechanism 4 through the first probe 211, the conductive element 31, and the second probe 41, thereby using the second testing mechanism 4 to perform ICT testing on the test piece 5. When the second testing mechanism 4 is in the second position, the second probe 41 is disconnected from the conductive element 31. At this time, the test piece 5 is electrically connected to the first testing mechanism 3 only through the first probe 211 and the conductive element 31, and the first testing mechanism 3 is used to perform FCT testing on the test piece 5.

[0094] The first position is higher than the second position. The switching mechanism 61 includes a first driving member. The first driving member is disposed within the needle bed 2. The driving end of the first driving member is connected to the second testing mechanism 4. The first driving member includes a cylinder, a telescopic rod, a connecting block, and a plate. The lower end of the cylinder is connected to the telescopic rod. The end of the telescopic rod is connected to the connecting block. The connecting block is connected to a plate. The plate is located below the second testing mechanism 4, so that at least a portion of the switching mechanism 61 is located below the second testing mechanism 4. A connecting rod is provided on the upper surface of the plate. The connecting rod is vertically arranged, and its upper end is connected to the second testing mechanism 4. When the telescopic rod of the cylinder extends downward, it can drive the plate to move downward, thereby switching the second testing mechanism 4 from the first position to the second position. When the telescopic rod of the cylinder retracts upward, it can drive the plate to move upward, thereby switching the second testing mechanism 4 from the second position to the first position.

[0095] like Figure 13 As shown, the first driving component of the switching mechanism 61 is a cylinder. The air circuit of the cylinder can be controlled by the solenoid valve 26 to control the extension and retraction of the cylinder's telescopic rod.

[0096] like Figure 6 As shown, in some embodiments, the testing equipment further includes a conveying mechanism 7 and a lifting mechanism 8. The conveying mechanism 7 includes a conveyor belt 71. The conveyor belt 71 is used to transport the test piece 5. The orthographic projection of the conveyor belt 71 is offset from the orthographic projection of the carrier plate 22. The lifting mechanism 8 is connected to the mounting frame 1. The lifting mechanism 8 is used to lift the test piece 5 to separate it from the conveyor belt 71.

[0097] Understandably, the conveyor belt 71 of the conveying mechanism 7 can transport the test piece 5 so that it can be transported from the loading area to the position of the needle bed 2. The orthographic projection of the conveyor belt 71 is offset from the orthographic projection of the carrier plate 22 to prevent the carrier plate 22 from interfering with the transmission of the conveyor belt 71. The lifting mechanism 8 lifts the test piece 5 to separate it from the conveyor belt 71. Thus, when performing multi-station testing, after the test piece 5 located at the front position along the conveying direction reaches the designated position of the carrier plate 22, it can be lifted by the lifting mechanism 8 to separate it from the conveyor belt 71. At this time, the test piece 5 located at the rear position can still be transported to the corresponding position of the carrier plate 22 by the conveyor belt 71. Therefore, during subsequent transmission on the conveyor belt 71, the test piece 5, which has reached the designated carrier plate 22 position, can be prevented from contacting the conveyor belt 71, thus preventing the test piece 5 from wearing down the conveyor belt 71 and shortening its service life, and also preventing the test piece 5 from being worn down by the conveyor belt 71 and affecting its quality.

[0098] The lifting mechanism 8 is used to lift the test piece 5 so that the test piece 5 is separated from the conveyor belt 71. This means that the lifting mechanism 8 lifts the test piece 5 upward so that the height of the test piece 5 is higher than the height of the conveyor belt 71.

[0099] It should be noted that the conveying mechanism 7 may have two parallel conveyor belts 71, with the distance between the two conveyor belts 71 being greater than or equal to the width of the carrier plate 22. This results in the orthographic projection of the conveyor belts 71 being misaligned with the orthographic projection of the carrier plate 22. The width of the test piece 5 is greater than the width of the carrier plate 22. The opposite sides of the test piece 5 are placed on the two conveyor belts 71 respectively. For example, the test piece 5 includes a main body portion that coincides with the orthographic projection of the carrier plate 22, and a first connecting portion and a second connecting portion connecting the opposite sides of the main body portion. The first connecting portion is placed on one conveyor belt 71, and the second connecting portion is placed on the other conveyor belt 71. Thus, the test piece 5 can be reliably supported and conveyed by the two conveyor belts 71.

[0100] In some embodiments, the distance between the two conveyor belts 71 of the conveying mechanism 7 can be adjusted, thereby accommodating test pieces 5 of different widths.

[0101] In some embodiments, the height of the conveyor belt 71 of the conveying mechanism 7 is adjustable, thereby adjusting the conveying height of the test piece 5 by changing the height of the conveyor belt 71. When the test piece 5 is conveyed to the position of the carrier plate 22, the height of the conveyor belt 71 can be lowered, so that the test piece 5 can be placed on the carrier plate 22.

[0102] like Figure 2As shown, in some embodiments, the lifting mechanism 8 includes a second drive member 81 and a lifting rod 82. The second drive member 81 is mounted on the base plate 11 of the mounting bracket 1. The lifting rod 82 is drively connected to the second drive member 81. Figures 9 to 11 As shown, the base plate 11 has a first clearance hole 13. The second testing mechanism 4 has a second clearance hole 42. The first testing mechanism 3 has a third clearance hole 32. The carrier plate 22 has a clearance notch 222. The positions of the first clearance hole 13, the second clearance hole 42, the third clearance hole 32, and the clearance notch 222 are corresponding. The lifting rod 82 is configured to pass through the first clearance hole 13, the second clearance hole 42, the third clearance hole 32, and the clearance notch 222 to lift the test piece 5 so that the test piece 5 is separated from the conveyor belt 71.

[0103] Understandably, the second driving member 81 can drive the lifting rod 82 to lift upwards. After passing through the first clearance hole 13, the second clearance hole 42, the third clearance hole 32, and the clearance notch 222, the lifting rod 82 can abut against the test piece 5. As the second driving member 81 continues to drive the lifting rod 82, the test piece 5 can be further lifted upwards so that the height of the test piece 5 is higher than the height of the conveyor belt 71, thereby separating the test piece 5 from the conveyor belt 71.

[0104] In some embodiments, the lifting rod 82 can be a one-piece rod or a separate rod. For example, the lifting rod 82 can be a one-piece cylindrical rod. In this case, the first clearance hole 13, the second clearance hole 42, and the third clearance hole 32 can all be round holes. The clearance notch 222 is an arc-shaped notch. The diameters of the first clearance hole 13, the second clearance hole 42, and the third clearance hole 32 can be the same, and the same as the diameter corresponding to the clearance notch 222.

[0105] In some embodiments, the lifting rods 82 may be configured as at least two at intervals, and at least two lifting rods 82 are synchronously driven by the second drive member 81.

[0106] For example, the second drive component 81 includes a cylinder. The cylinder is fixed to the lower surface of the base plate 11. A telescopic rod is connected to the lower end of the cylinder. A connecting block is connected to the end of the telescopic rod. The connecting block is connected to a plate. At least two lifting rods 82 are connected to the upper surface of the plate. Thus, when the telescopic rod of the cylinder extends or retracts, it can drive all the lifting rods 82 to rise and fall synchronously. When the telescopic rod of the cylinder extends downward, it can drive the plate to move downward, so that at least two lifting rods 82 descend synchronously, allowing the test piece 5 to return to the conveyor belt 71 or fall onto the carrier plate 22. When the telescopic rod of the cylinder retracts upward, it can drive the plate to move upward, so that at least two lifting rods 82 rise synchronously, lifting the test piece 5 and separating it from the conveyor belt 71.

[0107] like Figure 5As shown, in some embodiments, at least two carrier plates 22 are provided, and at least two carrier plates 22 are spaced apart along the transmission direction of the conveying mechanism 7.

[0108] It is understandable that by setting at least two carrier plates 22, each carrier plate 22 can be used to carry a test piece 5, thereby enabling multi-station synchronous testing of the testing equipment and further improving testing efficiency.

[0109] In some embodiments, two carrier plates 22 are provided and spaced apart along the transmission direction of the conveying mechanism 7.

[0110] It should be noted that, since the test piece 5 needs to be transported to the corresponding carrier plate 22 via the conveyor belt 71, when the test piece 5 located at the front along the transmission direction reaches the position of the corresponding carrier plate 22, the conveyor belt 71 needs to stop conveying first, and then the lifting mechanism 8 lifts the test piece 5 that has reached the position of the corresponding carrier plate 22 before restarting the conveyor belt 71 for subsequent conveying. Furthermore, this process needs to be performed once by the lifting mechanism 8 each time a test piece 5 reaches the position of the corresponding carrier plate 22. Therefore, when the number of carrier plates 22 is too large, it may cause a decrease in testing efficiency. Therefore, in this embodiment, it is preferable to set the number of carrier plates 22 to two to maximize testing efficiency.

[0111] Two carrier plates 22 enable dual-station testing. Each carrier plate 22 has a test pin plate 21, a first test mechanism, and a second test mechanism 4 underneath.

[0112] In some embodiments, the test probe plate 21 is connected to an elastic member protruding toward the carrier plate 22. The carrier plate 22 is connected to the elastic member. The elastic member has a first state and a second state. In the first state, the first probe 211 abuts against and is electrically connected to the test piece 5. In the second state, the first probe 211 is disconnected from the test piece 5. The testing device also includes a pressing mechanism 62. The pressing mechanism 62 is configured to press against the test piece 5 to switch the elastic member from the second state to the first state.

[0113] Understandably, the test pin plate 21 and the carrier plate 22 are connected by an elastic element. The elastic element has a first state of being at its contracted length and a second state of being at its natural length. When the elastic element is in the first state, the distance between the test pin plate 21 and the carrier plate 22 is small, allowing the first probe 211 to abut against the test piece 5, thereby achieving an electrical connection. When the elastic element is in the second state, the distance between the test pin plate 21 and the carrier plate 22 is large, causing the first probe 211 to disconnect from the test piece 5. In this case, the test piece 5 cannot transmit electrical signals to the first testing mechanism 3.

[0114] For a dual-station testing device, after both test pieces 5 are transported to the designated carrier plate 22 via conveyor belt 71, the position of conveyor belt 71 is lowered so that its height is lower than the height of the test pieces 5. At this time, the pressing mechanism 62 presses down the test pieces 5, causing both the test pieces 5 and the carrier plate 22 to move towards the test probe plate 21. The elastic element gradually contracts, switching from a second state to a first state. When the elastic element reaches the first state, the first probe 211 abuts against and is electrically connected to the test piece 5, allowing the test piece 5 to transmit electrical signals to the first testing mechanism 3 through the first probe 211 and the conductive element 31, thereby realizing the FCT test and ICT test of the test piece 5. After the test is completed, the pressing mechanism 62 releases the test pieces 5 and the carrier plate 22, and the elastic element can switch itself from the first state to the second state through self-recovery. The test pieces 5 and the carrier plate 22 can move upward under the action of the elastic element, thereby separating the first probe 211 from the test piece 5 and disconnecting the connection. At this point, the position of the conveyor belt 71 rises, thereby transporting the tested part 5 to the subsequent workstation.

[0115] like Figure 6 As shown, in some embodiments, the pressing mechanism 62 includes a fourth drive member and a pressure rod 63. The pressure rod 63 is drively connected to the fourth drive member. The fourth drive member is configured to drive the pressure rod 63 to move toward or away from the test piece 5. The pressure rod 63 is configured to press against the test piece 5 to switch the elastic element from a second state to a first state.

[0116] Understandably, after the fourth driving member drives the pressure rod 63 to descend, the position of the test piece 5 can be moved downwards, causing both the test piece 5 and the carrier plate 22 to move towards the test probe plate 21. The elastic element gradually contracts, switching from the second state to the first state. After the fourth driving member drives the pressure rod 63 to rise, the pressure rod 63 releases the test piece 5 and the carrier plate 22, and the elastic element can self-recover to switch from the first state to the second state. The test piece 5 and the carrier plate 22 can move upwards under the action of the elastic element, thereby separating the first probe 211 from the test piece 5 and disconnecting the connection.

[0117] The fourth driving component includes a cylinder. A telescopic rod is connected to the lower end of the cylinder. The telescopic rod is connected to multiple pressure rods 63 via a connector 99. For a dual-station testing device, each carrier plate 22 and the test piece 5 corresponds to multiple pressure rods 63. The multiple pressure rods 63 corresponding to each carrier plate 22 and the test piece 5 can be mounted on the same mounting plate. Two mounting plates are mounted on the same connecting plate, and this connecting plate is connected to the telescopic rod of the cylinder. Thus, the synchronous lifting and lowering of all pressure rods 63 in the dual-station testing device can be achieved using a single cylinder.

[0118] like Figure 1As shown, in some embodiments, the testing device further includes a clamping mechanism 9. The clamping mechanism 9 is disposed on the mounting frame 1. The clamping mechanism 9 is located near the needle bed 2 and is used to clamp the needle bed 2.

[0119] It is understandable that the needle bed 2 is clamped by the clamping mechanism 9 to reliably fix the position of the needle bed 2.

[0120] In some embodiments, the clamping mechanism 9 includes a third driving member 91, a movable member 92, and a clamping member 94. The third driving member 91 is mounted on the mounting frame 1 and spaced apart from the needle bed 2. The movable member 92 is connected to the third driving member 91 and is located between the third driving member 91 and the needle bed 2. The movable member 92 is connected to a driving rod 93. The third driving member 91 is configured to drive the movable member 92 toward or away from the needle bed 2. One end of the clamping member 94 is rotatably mounted on the mounting frame 1, and the other end is used to clamp the needle bed 2. The clamping member 94 has a connecting channel 95, and the driving rod 93 is located within the connecting channel 95. The third driving member 91 is configured to drive the movable member 92 toward or away from the needle bed 2, so that the driving rod 93 drives the clamping member 94 to rotate.

[0121] Understandably, the third drive member 91 can drive the movable member 92 to move horizontally, so that the movable member 92 approaches or moves away from the needle bed 2. When the movable member 92 approaches the needle bed 2, the drive rod 93 slides within the connecting channel 95 and can drive the clamping member 94 to rotate towards the needle bed 2, so that the clamping member 94 clamps the needle bed 2, ensuring the reliable fixation of the needle bed 2's position. When the movable member 92 moves away from the needle bed 2, the drive rod 93 slides within the connecting channel 95 and can drive the clamping member 94 to move away from the needle bed 2, so that the clamping member 94 releases the needle bed 2, thereby adjusting the installation position of the needle bed 2 or disassembling the needle bed 2 from the support frame.

[0122] It should be noted that there can be two clamping mechanisms 9, located at the left and right ends of the needle bed 2 respectively. Thus, the two clamping members 94 can clamp the left and right ends of one side of the needle bed 2 respectively, so as to fix the position of the needle bed 2.

[0123] In some embodiments, the third drive member 91 includes a cylinder. The cylinder has a piston rod 911 extending toward the movable member 92. The piston rod 911 is connected to the movable member 92, thereby driving the movable member 92 to move.

[0124] In some embodiments, the movable member 92 is plate-shaped. Two clamping mechanisms 9 are provided, sharing one movable member 92. Specifically, the piston rods 911 of the two cylinders are respectively connected to opposite ends on one side of the movable member 92. In this case, a drive rod 93 is provided at each opposite end of the movable member 92.

[0125] like Figure 7As shown, in some embodiments, along the direction from the connecting end to the clamping end of the clamping member 94, the connecting channel 95 includes an inclined section 951 and a straight section 952 that are interconnected. Specifically, along the direction from the movable member 92 to the needle bed 2, the inclined section 951 is inclined in a direction away from the movable member 92.

[0126] It is understood that the connecting end of the clamping member 94 is the end that is rotatably connected to the mounting bracket 1, and the clamping end of the clamping member 94 is the end that clamps the needle bed 2. The inclined section 951 is closer to the connecting end than the straight section 952, and along the direction from the movable member 92 to the needle bed 2, the inclined section 951 is inclined away from the movable member 92. Thus, when the movable member 92 approaches the needle bed 2, the drive rod 93 can drive the clamping member 94 to rotate towards the needle bed 2 through the inclined section 951, so that the clamping member 94 clamps the needle bed 2. The drive rod 93 can also slide into the straight section 952, thereby locking the position of the clamping member 94 to prevent the clamping member 94 from rotating arbitrarily. The straight section 952 can also provide a certain amount of redundant movement position for the drive rod 93. Within the range of the straight section 952, the clamping member 94 can stably and reliably lock the needle bed 2. When the movable part 92 moves away from the needle bed 2, the drive rod 93 can first slide along the straight section 952, and then slide along the inclined section 951. When the drive rod 93 slides within the inclined section 951, it can drive the clamping part 94 to rotate away from the needle bed 2, thereby unlocking the needle bed 2.

[0127] like Figure 2 As shown, in some embodiments, the mounting bracket 1 includes a base plate 11 and a vertical plate 12 arranged at an angle. A needle bed 2 is disposed on the base plate 11. A third drive member 91 is fixed to one side of the vertical plate 12. A movable member 92 is located between the other side of the vertical plate 12 and the needle bed 2. A clamping member 94 is rotatably mounted on the other side of the vertical plate 12.

[0128] Understandably, the base plate 11 is used to place the needle bed 2. The upright plate 12 is used to connect the clamping mechanism 9. The third drive member 91 and the movable member 92 are located on opposite sides of the upright plate 12, thereby optimizing the installation space of the third drive member 91 and avoiding excessive crowding on one side of the upright plate 12.

[0129] In some embodiments, the upright plate 12 and the base plate 11 are connected separately. For example, the base plate 11 and the upright plate 12 are detachably connected by bolts. The base plate 11 may have a slotted hole of a certain length, and the upright plate 12 can be fixed in the slotted hole by bolts. Therefore, by adjusting the position of the bolts in the slotted hole, the fixed position of the upright plate 12 can be adjusted, thereby adjusting the fixed position of the needle bed 2. The slotted hole extends along the direction from the base plate 11 to the needle bed 2.

[0130] like Figure 2 and Figure 3As shown, in some embodiments, a first electrical connector 23 is provided on the side of the needle bed 2 facing the movable member 92. A second electrical connector 910 is provided on the side of the movable member 92 facing the needle bed 2. The second electrical connector 910 is configured to connect to a central control mechanism. The second electrical connector 910 includes a third probe 96 protruding toward the needle bed 2. The third probe 96 is configured to abut against the first electrical connector 23 to electrically connect the first electrical connector 23 and the second electrical connector 910.

[0131] It is understood that the first electrical connector 23 is used to connect to the second probe 41 of the second testing mechanism 4, thereby receiving ICT test data and sending the ICT test data to the central control mechanism through the second electrical connector 910. The first electrical connector 23 and the second electrical connector 910 are electrically connected through the third probe 96, thereby enabling the transmission of ICT test data.

[0132] In some embodiments, both the first electrical connector 23 and the second electrical connector 910 are circuit boards. The first electrical connector 23 is provided with a conductive portion. The third probe 96 can abut against and be electrically connected to the conductive portion.

[0133] In some embodiments, a plurality of third probes 96 may be provided on the second electrical connector 910.

[0134] In some embodiments, the structure of the third probe 96 is the same as that of the first probe 211 and the second probe 41 described above.

[0135] In some embodiments, when the movable member 92 is in the third position, the drive rod 93 is located within the inclined section 951. When the movable member 92 is in the fourth position, the drive rod 93 is located within the straight section 952. A limiting post 14 protruding toward the movable member 92 is connected to the upright plate 12. The movable member 92 is provided with a limiting hole 97. The limiting post 14 passes through the limiting hole 97. The limiting post 14 is configured to abut against the needle bed 2 when the movable member 92 is in the third position.

[0136] Understandably, when the movable part 92 is in the third position, the drive rod 93 is located within the inclined section 951, and the clamping member 94 is in a state where it does not clamp the needle bed 2. When the movable part 92 is in the fourth position, the drive rod 93 is located within the straight section 952, and the clamping member 94 is in a state where it clamps the needle bed 2. When the movable part 92 switches from the third position to the fourth position, the movable part 92 will move closer to the needle bed 2. By connecting the limiting post 14 on the upright plate 12 and constructing the limiting hole 97 on the movable part 92, the cooperation between the limiting post 14 and the limiting hole 97 can limit the movement direction of the movable part 92 to prevent the movement trajectory of the movable part 92 from deviating. The limiting post 14 can also abut against the needle bed 2 when the movable part 92 is in the third position. Thus, when the needle bed 2 is installed on the base plate 11 and is not clamped by the clamping member 94, the needle bed 2 will not press against the third probe 96, which can prevent the needle bed 2 from contacting the third probe 96 during the initial installation and causing damage to the third probe 96.

[0137] When installing the needle bed 2, it is pushed with considerable force to gradually bring it closer to the movable part 92 and the clamping part 94. If the needle bed 2 directly contacts the third probe 96 at this time, it may knock the third probe 96 askew, causing damage. This embodiment of the application uses fiber pillars to abut against the needle bed 2, thereby preventing the first electrical connector 23 from knocking the third probe 96 askew.

[0138] It should be noted that since the limiting post 14 is fixedly installed on the upright plate 12, the position of the end of the limiting post 14 is fixed. During the movement of the movable part 92, the third probe 96 can gradually approach the needle bed 2 and eventually abut against the first electrical connector 23 of the needle bed 2 to realize the electrical connection between the first electrical connector 23 and the second electrical connector 910.

[0139] The area where the limiting post 14 abuts against the needle bed 2 is a rigid area of ​​the needle bed 2 to prevent the limiting post 14 from causing damage to the needle bed 2.

[0140] like Figure 7 and Figure 14 As shown, in some embodiments, the clamping member 94 has a clamping portion 941 protruding toward the needle bed 2 at the end away from the upright plate 12. The needle bed 2 is connected to a limiting portion 24 protruding toward the clamping member 94. The clamping portion 941 is configured to clamp onto the limiting portion 24 when the movable member 92 is in the fourth position.

[0141] It is understood that the clamping part 941 is used to clamp the limiting part 24 of the needle bed 2, and the clamping part 941 abuts against the side of the limiting part 24 away from the movable member 92. Thus, the limiting post 14 can abut against the side of the needle bed 2 close to the movable member 92, and the clamping part 941 can abut against the side of the needle bed 2 away from the movable member 92. Together with the clamping part 94, the positions of the left and right sides of the movable member 92 are fixed so that the needle bed 2 can be stably and reliably fixed on the base plate 11.

[0142] In some embodiments, a guide 15 is provided on the base plate 11. The needle bed 2 is slidably mounted on the guide 15.

[0143] It is understandable that the needle bed 2 is slidably mounted on the guide member 15 so that the needle bed 2 can be mounted on the base plate 11 in a preset direction.

[0144] The extension direction of the guide member 15 is the same as the driving direction of the third drive member 91, that is, from the upright plate 12 to the movable member 92. The extension length of the guide member 15 is adapted to the width of the needle bed 2.

[0145] It should be noted that there can be two guide members 15, and the two guide members 15 are spaced apart. The distance between the two guide members 15 is adapted to the length of the needle bed 2.

[0146] In some embodiments, the guide 15 includes a vertical portion 151 connected to the base plate 11 and a horizontal portion 152 connected to the vertical portion 151. The base plate 11, the vertical portion 151, and the horizontal portion 152 together define a groove 153. The needle bed 2 is connected to a sliding portion 25 protruding toward the guide 15. The sliding portion 25 is slidably mounted within the groove 153.

[0147] It is understandable that the sliding part 25 of the needle bed 2 is slidably installed in the slide groove 153 by defining the sliding by the base plate 11, the vertical part 151 and the horizontal part 152, so as to realize the sliding installation of the needle bed 2.

[0148] In some embodiments, the vertical portion 151 can be fixed to the base plate 11 by fasteners. A threaded hole may be provided on the horizontal portion 152, and a rotating member is threaded into the threaded hole. The length of the rotating member inserted into the threaded hole can be adjusted by rotation. When the inner end of the rotating member is fully inserted through the threaded hole, it abuts against the sliding portion 25. This locks the position of the sliding portion 25, allowing the needle bed 2 to be stably and reliably fixed to the base plate 11.

[0149] like Figure 8As shown, in some embodiments, the third drive member 91 has a piston rod 911. A connector 98 is connected to the end of the piston rod 911. The outer diameter of the connector 98 is larger than the outer diameter of the piston rod 911. A connector 99 is connected to the side of the movable member 92 facing the upright plate 12. The connector 99 has a connecting hole 991. A mounting notch 994 communicating with the connecting hole 991 is formed on one side of the connector 99. The connecting hole 991 includes a first hole segment 992 and a second hole segment 993. The diameter of the first hole segment 992 is larger than the diameter of the second hole segment 993, and the second hole segment 993 is located close to the upright plate 12. The piston rod 911 and the connector 98 are configured to be installed into the connecting hole 991 from the mounting notch 994, with the connector 98 located in the first hole segment 992 and the piston rod 911 located in the second hole segment 993.

[0150] Understandably, the piston rod 911 engages with the connecting hole 991 of the connector 99 via the joint 98. Since the connector 99 is mounted on the movable part 92, the piston rod 911 is connected to the movable part 92. When the third drive member 91 drives the piston rod 911 to move, it can drive the movable part 92 to move, so that the movable part 92 moves closer to or further away from the needle bed 2.

[0151] An installation notch 994 formed on one side of the connector 99 is used to install the connector 98. Since the diameter of the first hole section 992 is larger than the diameter of the second hole section 993, and the connector 98 is located in the first hole section 992 while the piston rod 911 is located in the second hole section 993, the connector 98 will not be pulled out of the connecting hole 991 when the piston rod 911 retracts, allowing the piston rod 911 and the connector 98 to drive the movable part 92 to move away from the needle bed 2.

[0152] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0153] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0154] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0155] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A testing device, characterized in that, include: Mounting bracket (1); A needle bed (2) is provided on the mounting frame (1), and the needle bed (2) is used to place the test piece (5); The first testing mechanism (3) is fixedly connected to the needle bed (2). The first testing mechanism (3) is configured to be electrically connected to the test piece (5) for performing functional testing on the test piece (5). The second testing mechanism (4) is vertically and vertically disposed within the needle bed (2), and the first testing mechanism (3) is located above the second testing mechanism (4). The second testing mechanism (4) is configured to be electrically connected to the test piece (5) for online testing of the test piece (5). A switching mechanism (61) is provided inside the needle bed (2), and at least a portion of the switching mechanism (61) is located below the second test mechanism (4) and connected to the second test mechanism (4), for adjusting the height position of the second test mechanism (4) so ​​that the test piece (5) switches between the functional test and the online test.

2. The testing equipment according to claim 1, characterized in that, The first testing mechanism (3) is provided with a conductive element (31); the needle bed (2) includes a test needle plate (21) and a carrier plate (22) located above the test needle plate (21), the carrier plate (22) being configured to carry the test piece (5); The test probe plate (21) is connected to a first probe (211), and the carrier plate (22) is provided with a clearance hole (221). One end of the first probe (211) extends toward the test piece (5) and passes through the clearance hole (221) to abut against and electrically connect with the test piece (5). The other end of the first probe (211) extends toward the first test mechanism (3) and abuts against and electrically connects with one side of the conductive element (31).

3. The testing equipment according to claim 2, characterized in that, The second test mechanism (4) is connected to a second probe (41), one end of which extends toward the first test mechanism (3) and is configured to abut and be electrically connected to the other side of the conductive element (31), and the other end of which is configured to be electrically connected to the first electrical connector (23) of the needle bed (2).

4. The testing equipment according to claim 3, characterized in that, When the second testing mechanism (4) is in the first position, the second probe (41) abuts against and is electrically connected to the conductive element (31); when the second testing mechanism (4) is in the second position, the second probe (41) is disconnected from the conductive element (31). The switching mechanism (61) is used to switch the second test mechanism (4) between the first position and the second position.

5. The testing equipment according to claim 2, characterized in that, The testing equipment also includes: The conveying mechanism (7) includes a conveyor belt (71) for conveying the test piece (5), and the orthographic projection of the conveyor belt (71) is offset from the orthographic projection of the carrier plate (22). A lifting mechanism (8) is connected to the mounting frame (1). The lifting mechanism (8) is used to lift the test piece (5) so that the test piece (5) is separated from the conveyor belt (71).

6. The testing equipment according to claim 5, characterized in that, The lifting mechanism (8) includes: The second driving component (81) is installed on the base plate (11) of the mounting bracket (1); The lifting rod (82) is connected to the second driving member (81) in a transmission manner; The base plate (11) is provided with a first clearance hole (13), the second testing mechanism (4) is provided with a second clearance hole (42), the first testing mechanism (3) is provided with a third clearance hole (32), and the carrier plate (22) is provided with a clearance notch (222). The positions of the first clearance hole (13), the second clearance hole (42), the third clearance hole (32), and the clearance notch (222) are corresponding. The lifting rod (82) is configured to pass through the first clearance hole (13), the second clearance hole (42), the third clearance hole (32), and the clearance notch (222) to lift the test piece (5) so that the test piece (5) is separated from the conveyor belt (71).

7. The testing equipment according to claim 5, characterized in that, The carrier plate (22) is configured to be at least two, and the at least two carrier plates (22) are spaced apart along the transmission direction of the conveying mechanism (7).

8. The testing equipment according to any one of claims 1 to 7, characterized in that, The testing equipment also includes: A clamping mechanism (9) is provided on the mounting frame (1). The clamping mechanism (9) is located near the needle bed (2) and is used to clamp the needle bed (2).

9. The testing equipment according to claim 8, characterized in that, The clamping mechanism (9) includes: The third driving component (91) is installed on the mounting frame (1) and is spaced apart from the needle bed (2); A movable part (92) is connected to the third driving part (91) and disposed between the third driving part (91) and the needle bed (2). The movable part (92) is connected to a driving rod (93). The third driving part (91) is configured to drive the movable part (92) to move closer to or away from the needle bed (2). The clamping member (94) is rotatably mounted on the mounting frame (1) at one end and used to clamp the needle bed (2) at the other end. The clamping member (94) is provided with a connecting channel (95) and the driving rod (93) is located in the connecting channel (95). The third drive member (91) is configured to drive the movable member (92) closer to or further away from the needle bed (2) so that the drive rod (93) drives the clamping member (94) to rotate.

10. The testing equipment according to claim 9, characterized in that, Along the direction from the connecting end of the clamping member (94) to the clamping end, the connecting channel (95) includes an inclined section (951) and a straight section (952) that are interconnected; wherein, along the direction from the movable member (92) to the needle bed (2), the inclined section (951) is inclined away from the movable member (92).

11. The testing equipment according to claim 10, characterized in that, The mounting bracket (1) includes a base plate (11) and a vertical plate (12) arranged at an angle. The needle bed (2) is disposed on the base plate (11). The third driving member (91) is fixed to one side of the vertical plate (12). The movable member (92) is located between the other side of the vertical plate (12) and the needle bed (2). The clamping member (94) is rotatably mounted on the other side of the vertical plate (12).

12. The testing equipment according to claim 10, characterized in that, The needle bed (2) has a first electrical connector (23) on the side facing the movable member (92), and the movable member (92) has a second electrical connector (910) on the side facing the needle bed (2). The second electrical connector (910) is configured to connect to the central control mechanism. The second electrical connector (910) includes a third probe (96) protruding toward the needle bed (2). The third probe (96) is configured to abut against the first electrical connector (23) so that the first electrical connector (23) and the second electrical connector (910) are electrically connected.

13. The testing equipment according to claim 12, characterized in that, When the movable part (92) is in the third position, the drive rod (93) is located in the inclined section (951); when the movable part (92) is in the fourth position, the drive rod (93) is located in the straight section (952). The mounting bracket (1) has a limiting post (14) protruding toward the movable part (92) connected to the upright plate (12). The movable part (92) has a limiting hole (97), and the limiting post (14) passes through the limiting hole (97). The limiting post (14) is configured to abut against the needle bed (2) when the movable part (92) is in the third position.

14. The testing equipment according to claim 13, characterized in that, The clamping member (94) has a clamping part (941) protruding toward the needle bed (2) at one end away from the upright plate (12). The needle bed (2) is connected to a limiting part (24) protruding toward the clamping member (94). The clamping part (941) is configured to clamp onto the limiting part (24) when the movable member (92) is in the fourth position.

15. The testing equipment according to claim 11, characterized in that, The base plate (11) is provided with a guide (15), and the needle bed (2) is slidably mounted on the guide (15).

16. The testing equipment according to claim 15, characterized in that, The guide member (15) includes a vertical part (151) connected to the base plate (11) and a horizontal part (152) connected to the vertical part (151). The base plate (11), the vertical part (151) and the horizontal part (152) together define a groove (153). The needle bed (2) is connected to a sliding part (25) protruding towards the guide member (15). The sliding part (25) is slidably installed in the groove (153).

17. The testing equipment according to claim 11, characterized in that, The third driving member (91) has a piston rod (911), and a connector (98) is connected to the end of the piston rod (911). The outer diameter of the connector (98) is larger than the outer diameter of the piston rod (911). The movable part (92) is connected to a connector (99) on the side facing the upright plate (12). The connector (99) is provided with a connection hole (991). One side of the connector (99) is formed with an installation notch (994) communicating with the connection hole (991). The connection hole (991) includes a first hole section (992) and a second hole section (993). The diameter of the first hole section (992) is larger than the diameter of the second hole section (993). The second hole section (993) is located close to the upright plate (12). The piston rod (911) and the connector (98) are configured to be installed in the connection hole (991) from the installation notch (994). The connector (98) is located in the first hole section (992), and the piston rod (911) is located in the second hole section (993).

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