Detection device

Abstract

This application provides a testing device, including a frame and at least two testing units, each testing unit being disposed on the frame and arranged sequentially along a first direction. Each testing unit includes: a mounting platform for placing a workpiece to be tested; a measuring instrument disposed above the mounting platform for testing the workpiece; a first drive unit disposed on the frame for driving the measuring instrument to move along the first direction; and a second drive unit disposed on the frame for driving the mounting platform to move along a second direction. The first and second directions are both perpendicular to the vertical direction and intersect each other. This application can reduce the movement range of the mounting platform along the first direction and utilize the space along the first direction to distribute at least two testing units, enabling multiple testing units to be placed within the same horizontal space to test multiple workpieces, thereby improving the space utilization and testing efficiency of the testing device.

Description

Technical Field

[0001] This application belongs to the field of measurement technology, and more specifically, relates to a testing device. Background Technology

[0002] In multilayer PCB manufacturing, through-holes (PTHs) are used to connect conductive tracks between different layers, penetrating from the first side of the board to the second side to achieve interlayer electrical connections. Some of these excess through-holes are called stubs. Stubs can act like antennas during high-speed signal transmission, easily causing signal reflection and electromagnetic interference. Therefore, additional drilling is required from the second side to remove the excess stubs. The holes formed by this operation are called back-drilled holes.

[0003] The actual depth of a back-drilled hole is a crucial indicator of PCB drilling quality. Therefore, after the back-drilled hole is formed, its actual depth needs to be measured. In existing technology, the PCB board is typically placed on a mounting platform, which is then moved horizontally by a drive mechanism to bring the back-drilled hole below the measuring instrument, where its depth is then measured. However, the large range of motion of the mounting platform results in a large footprint for the entire measuring equipment. Utility Model Content

[0004] The purpose of this application is to provide a detection device to solve the technical problem of large space occupation of existing measuring devices.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a testing device, including a frame and at least two testing units, wherein each testing unit is respectively disposed on the frame and arranged sequentially along a first direction; The detection unit includes: The mounting platform is used to place the device under test. A measuring instrument is positioned above the mounting platform and is used to inspect the part to be tested; A first drive unit is disposed on the frame and is used to drive the measuring instrument to move along the first direction; The second drive unit is disposed on the frame and is used to drive the mounting platform to move along the second direction; Wherein, both the first direction and the second direction are perpendicular to the vertical direction, and the first direction intersects the second direction; The first drive unit includes a first linear motor, which includes a first stator and a first mover. The first stator includes a stator core mounted on the frame and a first coil wound around the stator core. The first mover is connected to the measuring instrument and has a first magnet inside. Each stator core in each first stator is integrally formed.

[0006] In some embodiments, the number of detection units is two; or, the number of detection units is six.

[0007] In some embodiments, each of the first driving units in each detection unit operates independently; And / or, each of the second driving units in each of the detection units operates independently; And / or, each of the measuring instruments in each of the detection units operates independently.

[0008] In some embodiments, the detection device further includes a first guide portion, the first guide portion including a first guide rail and a plurality of first sliders, the first guide rail being mounted on the frame and extending along the first direction, each of the measuring instruments being connected to the first slider, and each of the first sliders being slidably disposed on the first guide rail.

[0009] In some embodiments, the detection device further includes a third driving unit for outputting movement in the vertical direction; The third driving unit is installed at the output end of the first driving unit, and the measuring instrument is installed at the output end of the third driving unit. Alternatively, the third drive unit is mounted on the frame, the first drive unit is mounted on the output end of the third drive unit, and the measuring instrument is mounted on the output end of the first drive unit.

[0010] In some embodiments, the measuring instrument includes a measuring device and a visual positioning device, wherein the visual positioning device is used to locate the position of the part to be measured in the test piece, and the measuring device is used to detect the part to be measured.

[0011] In some embodiments, the measuring instrument further includes a pressing device located above the test piece, the pressing device being used to press against the side of the test piece facing away from the mounting platform.

[0012] In some embodiments, the pressing device is in the shape of a three-dimensional frame, the measuring device is disposed inside the pressing device, and the visual positioning device is disposed outside the pressing device and located on one side of the measuring device along the first direction.

[0013] In some embodiments, the pressing device includes a pressing drive, a pressing structure, and a first connecting plate. The first connecting plate is mounted on the output end of the first driving unit. The pressing structure includes a driving plate, a pressure plate, and a guide rod connected between the driving plate and the pressure plate. The driving plate, the first connecting plate, and the pressure plate are arranged sequentially at intervals. The pressing drive connects the driving plate and the first connecting plate. The pressing drive is used to drive the driving plate to rise and fall, thereby driving the driving plate, the guide rod, and the pressure plate to rise and fall. The measuring device is mounted on the first connecting plate and located between the first connecting plate and the pressure plate.

[0014] In some embodiments, the guide rod is sleeved with a first limiting member and a second limiting member, the first limiting member and the second limiting member being located on opposite sides of the first connecting plate, and the first limiting member and the second limiting member being used to abut and limit the opposite sides of the first connecting plate respectively.

[0015] In some embodiments, the testing device further includes a first positioning component, a second positioning component, a first movable component, a second movable component, and a omnidirectional ball. The first positioning component and the first movable component are spaced apart along a first direction, and the second positioning component and the second movable component are spaced apart along a second direction. The first movable component and the second movable component are used to push the test piece toward the first positioning component and the second positioning component, respectively, so that the first positioning component, the second positioning component, the first movable component, and the second movable component abut against the four sides of the test piece. The omnidirectional ball protrudes from the mounting platform to support the test piece before the first movable component and the second movable component push the test piece, and descends after the test piece is positioned to support the test piece on the mounting platform.

[0016] In some embodiments, the first positioning component includes a first lifting drive and a first positioning component, wherein the first lifting drive is used to drive the first positioning component to rise above the mounting platform or to descend and retract below the mounting platform. And / or, the second positioning component includes a second lifting drive and a second positioning component, wherein the second lifting drive is used to drive the second positioning component to rise above the mounting platform or to descend and retract below the mounting platform; And / or, the first active component includes a third lifting drive and a third positioning component, wherein the third lifting drive is used to drive the third positioning component to rise above the mounting platform or to descend and retract below the mounting platform; And / or, the second active component includes a fourth lifting drive and a fourth positioning member, the fourth lifting drive being used to drive the fourth positioning member to rise above the mounting platform or to descend and retract below the mounting platform.

[0017] In some embodiments, the position of the first positioning component along the first direction is adjustable; And / or, the position of the second positioning component along the second direction is adjustable. The beneficial effects of the testing equipment provided in this application are as follows: By setting up multiple testing units, and each testing unit being arranged sequentially along a first direction, the testing equipment can simultaneously test multiple test pieces, thereby improving the testing efficiency of the testing equipment. Simultaneously, each testing unit drives the measuring instrument and the mounting platform to move along the first and second directions respectively via a first driving unit and a second driving unit, adjusting the horizontal relative position of the measuring instrument and the mounting platform. Compared to the prior art where the horizontal relative position of the measuring instrument and the mounting platform is adjusted by moving the mounting platform along the first and second directions, this arrangement significantly reduces the horizontal movement amplitude of the mounting platform, especially reducing the movement amplitude along the first direction. Furthermore, by utilizing the space in the first direction to distribute at least two testing units, multiple testing units can be placed within the same horizontal space to test multiple test pieces, thereby improving the space utilization rate and testing efficiency of the testing equipment. In addition, by integrating the stator cores in each first stator, each testing unit can share a single stator core, simplifying the manufacturing and assembly difficulty of each stator core. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art 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.

[0019] Figure 1 This is a schematic diagram of the structure of a PCB board inspected by the inspection equipment provided in the embodiments of this application; Figure 2 This is a three-dimensional structural diagram of the detection device provided in the first embodiment of this application; Figure 3 A three-dimensional structural diagram of the detection equipment drive installation platform and measuring instrument provided in the first embodiment of this application; Figure 4 for Figure 3 A magnified structural diagram of part A in the middle; Figure 5This is a top view of the detection device provided in the first embodiment of this application; Figure 6 This is a three-dimensional structural diagram of the detection device provided in the second embodiment of this application; Figure 7 A three-dimensional structural diagram of the detection equipment drive installation platform and measuring instrument provided in the second embodiment of this application; Figure 8 A three-dimensional structural diagram of the measuring instrument in the testing equipment provided in the embodiments of this application; Figure 9 This is a side view of the measuring instrument in the testing equipment provided in the embodiments of this application; Figure 10 This is a top view of the measuring instrument in the testing equipment provided in the embodiments of this application; Figure 11 This is a schematic diagram of the installation platform in the testing equipment provided in the embodiments of this application; Figure 12 for Figure 11 Another angle of the installation platform.

[0020] The following are the labeling elements in the figure: 100. Frame; 110. Base; 120. Crossbeam; 130. Elevating piece; 200. Mounting platform; 210. Mounting slot; 300. First drive unit; 310. First linear motor; 311. First stator; 3111. Stator core; 312. First mover; 400. Measuring instrument; 410. Measuring device; 420. Pressing device; 421. Pressing structure; 4211. Drive plate; 4212. Pressure plate; 4213. Guide. 4214. Rod; 422. Clearance hole; 422. Pressing drive member; 4221. Fixing part; 4222. Sliding part; 423. First connecting plate; 424. First limiting member; 425. Second limiting member; 426. First mating part; 427. Second mating part; 430. Visual positioning device; 440. Movable connecting plate; 500. Second drive unit; 510. Second linear motor; 511. Second stator; 512. Second mover; 600. Three drive units; 610, third linear motor; 611, third stator; 612, third mover; 700, first guide unit; 710, first guide rail; 720, first slider; 800, second guide unit; 810, second guide rail; 820, second slider; 900, third guide unit; 910, third guide rail; 920, third slider; 1000, mounting component; 1100, first positioning assembly; 1110, first lifting drive component; 11 20. First positioning component; 1200. Second positioning assembly; 1300. First movable assembly; 1310. Third lifting drive component; 1320. Third positioning component; 1330. First horizontal drive component; 1400. Second movable assembly; 1500. Universal ball; 1600. Fixing component; 1. Detection unit; 2. Test piece; 21. Back drill hole; 22. First surface; 23. Second surface; X, First direction; Y, Second direction; Z, Vertical direction. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0025] Please see Figures 1 to 5 The testing equipment provided in this application embodiment will now be described. In this embodiment, the testing equipment is used to detect the depth of the back-drilled holes 21 on the PCB board. In other embodiments, the testing equipment can also be used to detect other parameters of the PCB board, such as the depth of blind holes, the coaxiality of the back-drilled holes 21, and the hole depths of other board components.

[0026] The testing equipment includes a frame 100 and at least two testing units 1, each testing unit 1 being disposed on the frame 100 and arranged sequentially along a first direction X; each testing unit 1 includes a mounting platform 200, a measuring instrument 400, a first drive unit 300, and a second drive unit 500; the mounting platform 200 is used to place the workpiece 2 to be tested; the measuring instrument 400 is disposed above the mounting platform 200 and is used to test the workpiece 2; the first drive unit 300 is disposed on the frame 100 and is used to drive the measuring instrument 400 to move along the first direction X; the second drive unit 500 is disposed on the frame 100 and is used to drive the mounting platform 200 to move along a second direction Y; wherein, the first direction X and the second direction Y are both perpendicular to the vertical direction Z, and the first direction X intersects the second direction Y. The first drive unit 300 includes a first linear motor 310, which includes a first stator 311 and a first mover 312. The first stator 311 includes a stator core 3111 mounted on the frame 100 and a first coil (not shown) wound on the stator core 3111. The first mover 312 is connected to the measuring instrument 400 and has a first magnet (not shown) inside. Each stator core 3111 in each detection unit 1 is integrally formed.

[0027] In this configuration, both the first direction X and the second direction Y are horizontal directions perpendicular to the vertical direction Z, and the first direction X intersects with the second direction Y, meaning that the first direction X and the second direction Y are not parallel. The measuring instrument 400 is driven to move along the first direction X by the first driving unit 300, and the mounting platform 200 and the test piece 2 on it are driven to move along the second direction Y by the second driving unit 500. This allows the horizontal relative position of the test piece 2 and the measuring instrument 400 to be adjusted, so that the side part of the test piece 2 (e.g., the back drill hole 21) is moved directly below the measuring instrument 400 for detection by the measuring instrument 400.

[0028] When using the testing equipment, at least two test pieces 2 are first placed on the mounting platforms 200 of at least two testing units 1 respectively; then the horizontal relative positions of the measuring instrument 400 and the test pieces 2 are adjusted by the first driving part 300 and the second driving part 500 in each testing unit 1 respectively, so as to realize the testing of each test piece 2 by the measuring instrument 400.

[0029] In addition, the detection device also includes a controller. When three-phase alternating current is supplied to the first coil through the controller, the first coil generates a traveling wave magnetic field. The first magnet generates an electromotive force under the action of the traveling wave magnetic field and forms a current. The current interacts with the traveling wave magnetic field, thereby generating an asynchronous driving force. Under the action of this asynchronous driving force, the first mover 312 slides on the first stator 311. The direction of movement of the traveling wave magnetic field can be changed by changing the phase sequence of the alternating current supplied to the first coil, thereby changing the sliding direction of the first mover 312 on the first stator 311, so as to realize the reciprocating linear motion of the first mover 312 on the first stator 311.

[0030] It should be noted that the integrated design includes both one-piece molding and one-piece connection.

[0031] The detection device in this embodiment of the application, by setting up multiple detection units 1, with each detection unit 1 arranged sequentially along the first direction X, enables the detection device to simultaneously detect multiple test pieces 2, thereby improving the detection efficiency of the detection device. Simultaneously, each detection unit 1, through a first driving unit 300 and a second driving unit 500, respectively drives the measuring instrument 400 and the mounting platform 200 to move along the first direction X and the second direction Y, thereby adjusting the horizontal relative position of the measuring instrument 400 and the mounting platform 200. Compared to related technologies where the horizontal relative position of the measuring instrument 400 and the mounting platform 200 is adjusted by moving the mounting platform 200 along the first direction X and the second direction Y, the above arrangement can significantly reduce the horizontal movement amplitude of the mounting platform 200, especially reducing the movement amplitude along the first direction X. Furthermore, by utilizing the space in the first direction X to distribute at least two detection units 1, multiple detection units 1 can be placed within the same horizontal space to detect multiple test pieces 2, thereby improving the space utilization rate and detection efficiency of the detection device. Furthermore, by moving the measuring instrument 400 and the mounting platform 200 along the first direction X and the second direction Y respectively, the horizontal movement error of the mounting platform 200 can be reduced, thereby improving the horizontal position adjustment accuracy of the measuring instrument 400 and the mounting platform 200, and thus improving the measurement accuracy of the measuring instrument 400 on the workpiece 2 under test. In addition, by integrating each stator core 3111 in each detection unit 1, each detection unit 1 can share a single stator core 3111, simplifying the manufacturing and assembly difficulty of each stator core 3111.

[0032] Optionally, the first direction X is perpendicular to the second direction Y. It is understood that in other embodiments, the first direction X and the second direction Y may not be perpendicular, for example, the first direction X and the second direction Y may form an acute angle or an obtuse angle with each other, which is not a unique limitation here.

[0033] In this application, the number of detection units 1 can be two, three, four, five, six or more. In actual design, the number of detection units 1 can be selected according to the actual application requirements.

[0034] For example, please see Figure 2 , Figure 3 and Figure 5 In some examples, there are two detection units 1, which are distributed along the first direction X. Each detection unit 1 is used to detect one workpiece 2. The arrangement of two detection units 1 can improve the detection efficiency and accuracy of the entire detection equipment while reducing the overall size and weight of the equipment, making it easier to transport and expanding its application range. For example, it can be used to operate the detection equipment upstairs.

[0035] For example, please refer to Figure 6and Figure 7 In other examples, there are six detection units 1, which are distributed sequentially along the first direction X. Each detection unit 1 is used to detect one workpiece 2. The arrangement of six detection units 1 can be matched with the existing six-axis drilling rig in the factory and with the automated loading and unloading trolley, thereby realizing automated detection.

[0036] In some embodiments, please refer to Figure 5 Each detection unit 1 operates independently, meaning each detection unit 1 independently detects each workpiece 2, and there is no mutual interference between the detection units 1. Specifically, each first drive unit 300, each second drive unit 500, and each measuring instrument 400 in each detection unit 1 operates independently. For example, when one detection unit 1 is in the stage where the first drive unit 300 drives the measuring instrument 400 to move along the first direction X, another detection unit 1 may be in the stage where the second drive unit 500 drives the mounting platform 200 to move along the second direction Y, or another detection unit 1 may be in the detection stage where the measuring instrument 400 is detecting the workpiece 2. Of course, it is also possible that the operation steps of the two detection units 1 are exactly synchronized.

[0037] In some other embodiments of this application, each detection unit 1 can also work synchronously, that is, each first drive unit 300 in each detection unit 1 works synchronously, each second drive unit 500 in each detection unit 1 works synchronously, and each measuring instrument 400 in each detection unit 1 works synchronously, so as to realize the synchronous detection of multiple test pieces 2, thereby enabling the synchronous loading and unloading of each test piece 2 to improve the overall detection efficiency.

[0038] In some other embodiments of this application, each first drive unit 300 in each detection unit 1 may operate independently, while each second drive unit 500 and / or each measuring instrument 400 may operate synchronously; or, each second drive unit 500 in each detection unit 1 may operate independently, while each first drive unit 300 and / or each measuring instrument 400 may operate synchronously; or, each measuring instrument 400 in each detection unit 1 may operate independently, while each first drive unit 300 and / or each second drive unit 500 may operate synchronously.

[0039] Optionally, in some embodiments, each stator core 3111 in each detection unit 1 is integrally formed, that is, a core block with a larger dimension along the first direction X is formed by integral molding. Then, each first coil in each first stator 311 is wound around a different position along the first direction X of the core block, so that each first coil is combined with the corresponding core segment to form a first stator 311. It can be understood that in other embodiments of this application, each stator core 3111 can also be integrally connected, for example, by welding, bonding, pressing or screw locking.

[0040] In other embodiments of this application, each stator core 3111 in each first stator 311 can be independently arranged. For example, each stator core 3111 can be arranged sequentially at intervals along the first direction X to reduce the possibility of mutual interference between adjacent first movers 312. Alternatively, each stator core 3111 in each first stator 311 can be arranged sequentially abutting each other along the first direction X. This is not a unique limitation.

[0041] In some embodiments, each first coil in each first stator 311 is electrically connected to a controller, and the controller supplies different alternating currents to each first stator 311, thereby enabling independent movement of the first mover 312 in each first linear motor 310. It is understood that in other embodiments, the first coils may also be connected sequentially, and the controller supplies alternating current to one group of first coils, thereby controlling the synchronous movement of each first mover 312.

[0042] In some embodiments, the first mover 312 includes a mover base, a first magnet is disposed in the mover base, and the mover base is connected to the measuring instrument 400. Alternatively, in other embodiments, the first mover 312 may not include a mover base, and the first magnet may be directly connected to the measuring instrument 400.

[0043] In some embodiments, please refer to Figure 3 and Figure 4 The testing equipment also includes a first guide section 700, which includes a first guide rail 710 and a plurality of first sliders 720. The first guide rail 710 is mounted on the frame 100 and extends along the first direction X. Each measuring instrument 400 is connected to a first slider 720, and each first slider 720 is slidably disposed on the first guide rail 710. This arrangement allows each testing unit 1 to share the first guide rail 710. The first guide rail 710, in conjunction with the first sliders 720 on each measuring instrument 400, guides the movement of each measuring instrument 400 along the first direction X, reducing the processing and assembly costs of the first guide rail 710.

[0044] Optionally, there are two first guide rails 710, which are respectively located on the upper and lower sides of the first mover 312. Both first guide rails 710 extend along the first direction X. Each measuring instrument 400 is equipped with a corresponding first slider 720 for each of the two first guide rails 710, thereby ensuring that each measuring instrument 400 moves stably along the first direction X.

[0045] In other embodiments of this application, for each detection unit 1, multiple first guide rails 710 may be provided respectively, and each measuring instrument 400 may be slidably disposed on each first guide rail 710.

[0046] In this application, to prevent mutual interference when the measuring instruments 400 move along the first direction X, a detection element can be provided for each measuring instrument 400. The detection element detects the position information of the measuring instrument 400 and feeds it back to the controller. The controller then controls the measuring instruments 400 to maintain a distance, thus avoiding structural interference. Furthermore, protruding anti-collision parts can be provided on opposite sides of each measuring instrument 400 and / or the first moving part 312 along the first direction X. These anti-collision parts have a buffering effect to prevent collisions between the measuring instruments 400.

[0047] Optionally, the anti-collision part can be made of soft rubber or elastic material so that it can buffer and weaken the external force when subjected to external force.

[0048] In some embodiments, please refer to Figure 2 , Figure 4 and Figure 6 The testing equipment also includes a third drive unit 600, which outputs movement along the vertical direction Z. The third drive unit 600 is installed at the output end of the first drive unit 300, and the measuring instrument 400 is installed at the output end of the third drive unit 600. It should be noted that when the testing equipment is used to detect the depth of back-drilled holes 21 in a PCB board, the actual depth of the back-drilled holes 21 is generally obtained by acquiring the three-dimensional information of the back-drilled holes 21. For each measuring instrument 400, its focal depth is a fixed value. When the difference in the actual depth of each back-drilled hole 21 exceeds the focal depth range, the same measuring instrument 400 cannot accurately measure the actual depth of multiple back-drilled holes 21; that is, the actual depth of some back-drilled holes 21 cannot be accurately measured. In this embodiment, by setting the third drive unit 600, the height of the measuring instrument 400 can be adjusted according to the actual depth of different back-drilled holes 21, so that when measuring each back-drilled hole 21, the focal point of the measuring instrument 400 is located at the actual depth position of the back-drilled hole 21, thus ensuring measurement accuracy. Understandably, in other embodiments of this application, the third drive unit 600 can also be used to adjust the height of the mounting platform 200 to adjust the height of the test piece 2. In this case, the height of the measuring instrument 400 can remain unchanged, and this is not a unique limitation.

[0049] In some embodiments, please refer to Figure 4 The detection unit 1 also includes a mounting component 1000, which is connected to the output end of the first drive unit 300, and the third drive unit 600 is mounted on the mounting component 1000. The mounting component 1000 enables the connection between the third drive unit 600 and the first drive unit 300, thus facilitating the support and assembly of the third drive unit 600.

[0050] Specifically, in the embodiment where the detection unit 1 includes a first linear motor 310 and a first slider 720, the first slider 720 and the first mover 312 of the first linear motor 310 are both mounted on the mounting member 1000. Specifically, the first slider 720 and the first mover 312 are mounted on the side of the mounting member 1000 facing the first stator 311, and the third drive unit 600 is mounted on the side of the mounting member 1000 away from the first stator 311.

[0051] In some embodiments, please refer to Figure 4 and Figure 8 The third drive unit 600 includes a third linear motor 610, which comprises a third stator 611 and a third mover 612. The third stator 611 is mounted on the mounting component 1000, and the third mover 612 is mounted on the measuring instrument 400. The working principle of the third linear motor 610 is the same as that of the first linear motor 310, and will not be described in detail here. It is understood that in other embodiments of this application, the third drive unit 600 may also be of other types, such as a ball screw mechanism, a screw and nut mechanism, a belt transmission mechanism, a chain transmission mechanism, or a gear and rack mechanism.

[0052] In addition, a third guide part 900 is connected between the mounting part 1000 and the measuring instrument 400. The third guide part 900 includes a third guide rail 910 and a third slider 920. The third guide rail 910 extends in the vertical direction Z. The third guide rail 910 is mounted on the mounting part 1000, and the third slider 920 is mounted on the measuring instrument 400. The third slider 920 is slidably disposed on the third guide rail 910, thereby guiding the measuring instrument 400 to move in the vertical direction Z.

[0053] Optionally, the third stator 611 is provided with third guide rails 910 on both sides of the first direction X, and the measuring instrument 400 is provided with third sliders 920 on both sides of the first direction X. The two sets of third sliders 920 are respectively slidably disposed on the two third guide rails 910 to ensure the smooth sliding of the measuring instrument 400.

[0054] In some embodiments, please refer to Figures 8 to 10The measuring instrument 400 includes a measuring device 410 and a visual positioning device 430. The visual positioning device 430 is used to position the horizontal position of the part to be measured (e.g., back drill hole 21) in the part to be measured 2, and the measuring device 410 is used to detect the part to be measured. Before measuring the part to be measured by the measuring device 410, the part to be measured is moved below the measuring device 410 by the first driving unit 300 and the second driving unit 500. Then, the position of the part to be measured is positioned by the visual positioning device 430 to ensure that the measuring device 410 can detect the part to be measured. Finally, the part to be measured is detected by the measuring device 410.

[0055] Optionally, the visual positioning device 430 includes a camera, which positions the part to be measured by taking a picture.

[0056] In some embodiments, please refer to Figure 8 and Figure 10 The measuring instrument 400 also includes a movable connecting plate 440, which is connected to the output end of the third drive unit 600. The visual positioning device 430 and the measuring device 410 are both mounted on the movable connecting plate 440. The third drive unit 600 can drive the movable connecting plate 440 to rise and fall, thereby driving the visual positioning device 430 and the measuring device 410 to rise and fall.

[0057] In some embodiments, please refer to Figures 8 to 10 The measuring instrument 400 also includes a pressing device 420, which is located above the workpiece 2 to be tested and is used to press against the side of the workpiece 2 to be tested that is away from the mounting platform 200.

[0058] Specifically, suppose the test piece 2 has a first surface 22 and a second surface 23 facing away from each other. When using the testing equipment to test the test piece 2, firstly, the first surface 22 of the test piece 2 is placed on the mounting platform 200, and the mounting platform 200 adsorbs the test piece 2. Next, a pressing device 420 presses against the second surface 23 of the test piece 2 facing away from the mounting platform 200 to make the second surface 23 of the test piece 2 flat. Finally, the measuring device 410 measures the test piece 2. The pressing device 420 is provided so that before measurement, the surface of the test piece 2 can be flattened by pressing against the side of the test piece 2 facing away from the mounting platform 200 with the pressing device 420. Then, the measuring device 410 measures the test piece 2, thereby reducing the measurement error caused by the change in the thickness direction of the layer position due to the deformation of the test piece 2 itself, and thus improving the measurement accuracy of the measuring device 410.

[0059] In some embodiments, the pressing device 420 is used to press against one side of the test piece 2, which has a flexible pad (not shown). The flexible pad is a pad made of flexible material and has a certain compressive elasticity. The setting of the flexible pad allows for a certain degree of deformation to compensate for the flatness error of itself and the PCB board (test piece 2), thereby making the pressing force more uniform.

[0060] In some embodiments, please refer to Figures 8 to 10 The pressing device 420 is a three-dimensional frame, and the measuring device 410 is located inside the pressing device 420. The visual positioning device 430 is located outside the pressing device 420 and on one side of the measuring device 410 along the first direction X. By placing the measuring device 410 inside the pressing device 420, not only can the overall space occupied by the measuring device 410 and the pressing device 420 be reduced, but the pressing device 420 can also press against the edge of the part to be measured (the part to be inspected) of the test piece 2 to ensure that the edge of the part to be measured is flat. Then, the measuring device 410 inspects the part to be measured, thereby improving the measurement accuracy of the measuring device 410. In addition, by distributing the visual positioning device 430 and the measuring device 410 along the first direction X, the overall space occupied by the visual positioning device 430 and the measuring device 410 along the second direction Y can be reduced, thereby reducing the overall space occupied by the measuring instrument 400 along the second direction Y.

[0061] Optionally, please refer to Figure 9 The visual positioning device 430 is installed on the movable connecting plate 440 along the second direction Y. One side of the visual positioning device 430 is recessed relative to the movable connecting plate 440, and the other side of the visual positioning device 430 is recessed relative to the pressing device 420. This ensures that the visual positioning device 430 does not occupy additional space along the second direction Y, thereby making the space occupied by the entire measuring instrument 400 along the second direction Y small.

[0062] In some embodiments, please refer to Figure 8 and Figure 9 The pressing device 420 includes a pressing drive 422 and a pressing structure 421. The pressing drive 422 is installed at the output end of the first drive unit 300, and the pressing structure 421 is connected to the pressing drive 422. The pressing drive 422 is used to drive the pressing structure 421 to rise and fall so that the pressing structure 421 presses against the test piece 2.

[0063] In practical applications, once the relative positions of the measuring device 410 and the workpiece 2 along the vertical direction Z are determined, the pressing drive 422 drives the pressing structure 421 to descend, so that the pressing structure 421 presses against the second surface 23 of the workpiece 2, flattening the workpiece 2 and thus improving the measurement accuracy of the measuring device 410. Furthermore, it should be noted that the relative positions of the measuring device 410 and the workpiece 2 along the vertical direction Z can be achieved by driving the measuring device 410 to descend or the workpiece 2 to rise.

[0064] The pressing device 420 includes a driving member 421, a pressing structure 422, and a first connecting plate 423. The first connecting plate 423 is installed at the output end of the first driving part 300. The pressing structure 421 includes a driving plate 4211, a pressure plate 4212, and a guide rod 4213 connecting the driving plate 4211 and the pressure plate 4212. The driving plate 4211, the first connecting plate 423, and the pressure plate 4212 are arranged in sequence at intervals. The pressing driving member 422 connects the driving plate 4211 and the first connecting plate 423. The pressing driving member 422 is used to drive the driving plate 4211 to rise and fall, so as to drive the driving plate 4211, the guide rod 4213, and the pressure plate 4212 to rise and fall. In this embodiment, a three-dimensional frame-shaped pressing structure 421 is formed by the drive plate 4211, the pressure plate 4212, and the guide rod 4213, which facilitates the assembly of the measuring device 410 and the pressing structure 421. Simultaneously, the pressing drive member 422 connects the drive plate 4211 and the first connecting plate 423, and drives the drive plate 4211 and the pressure plate 4212 located on the upper and lower sides of the first connecting plate 423 to rise and fall, thereby reducing the overall space occupied by the pressing structure 421 of the pressing drive member 422 in the vertical direction Z. It is understood that in other embodiments of this application, the first connecting plate 423 can also be positioned above the drive plate 4211, and then the pressing drive member 422 can drive the drive plate 4211 and the pressure plate 4212 to rise and fall; this is not the only possible embodiment.

[0065] In some embodiments, please refer to Figure 8 and Figure 9 The measuring device 410 is mounted on the first connecting plate 423, and is located within the space enclosed by the first connecting plate 423, the pressure plate 4212, and the guide rods 4213. By connecting the measuring device 410 to the first connecting plate 423, the position of the measuring device 410 remains unchanged when the pressing structure 421 is raised or lowered. This prevents the height of the measuring device 410 from being affected by the raising or lowering of the pressing structure 421 after the height of the measuring device 410 is adjusted, thus avoiding any impact on the measurement accuracy of the measuring device 410.

[0066] Optionally, in an embodiment where the detection device includes a third drive unit 600, the first connecting plate 423 is mounted on the output end of the third drive unit 600, specifically, the first connecting plate 423 is mounted on the movable connecting plate 440.

[0067] In some embodiments, please refer to Figure 8 The pressure plate 4212 is provided with a clearance hole 4214 extending vertically in the Z direction. The light emitted by the measuring device 410 to measure the test piece 2 is directed towards the test piece 2 through the clearance hole 4214. In practical applications, the pressure plate 4212 is first lowered by the pressing drive member 422 to press against the second surface 23 of the test piece 2 and surround the periphery of the test part. Then, the measuring device 410 emits light towards the test part through the clearance hole 4214 to achieve measurement of the test part. The clearance hole 4214 is provided to avoid the influence of the pressure plate 4212 on the measurement effect of the measuring device 410. It is understood that in other embodiments of this application, the pressure plate 4212 can also be made of a light-transmitting material, so that the light emitted by the measuring device 410 can directly pass through the pressure plate 4212 and be directed towards the test part. In this case, the clearance hole 4214 does not need to be provided on the pressure plate 4212.

[0068] In some embodiments, please refer to Figure 8 and Figure 9 The pressing drive 422 includes a linear cylinder, which includes a fixed part 4221 and a sliding part 4222. The fixed part 4221 is mounted on the drive plate 4211, and the sliding part 4222 is mounted on the first connecting plate 423. When the pressing drive 422 is activated, the sliding part 4222 of the pressing drive 422 slides relative to the fixed part 4221. Due to the relative movement between the sliding part 4222 and the fixed part 4221, the first connecting plate 423 and the drive plate 4211, which are respectively connected to the sliding part 4222 and the fixed part 4221, slide relative to each other. Since the first connecting plate 423 is fixed to the frame 100, the drive plate 4211 rises and falls relative to the first connecting plate 423, thereby causing the drive plate 4211 and the pressure plate 4212 to rise and fall relative to the first connecting plate 423, thereby driving the pressure plate 4212 to fall and abut against the test piece 2.

[0069] In some embodiments, please refer to Figure 8The pressing device 420 includes two guide rods 4213, which are respectively located on opposite sides of the measuring device 410 along the first direction X. The size of the guide rods 4213 along the second direction Y is smaller than the size of the measuring device 410 along the second direction Y. This arrangement can reduce the space occupied by the guide rods 4213 along the second direction Y, thereby reducing the space occupied by the drive plate 4211, the pressure plate 4212 and the first connecting plate 423 along the second direction Y, further reducing the space occupied by the entire pressing device 420 along the second direction Y, and reducing the weight of the entire measuring instrument 400.

[0070] In some embodiments, please refer to Figure 8 The guide rod 4213 is fitted with a first limiting member 424 and a second limiting member 425. The first limiting member 424 and the second limiting member 425 are located on opposite sides of the first connecting plate 423, respectively, and are used to abut and limit the movement of the guide rod 4213 against the opposite sides of the first connecting plate 423. Specifically, when the pressing drive member 422 drives the pressing structure 421 to rise and fall, the guide rod 4213 will rise and fall. When the guide rod 4213 falls to its limit position, the first limiting member 424 will abut against the upper side of the first connecting plate 423 to limit the descent of the guide rod 4213; when the guide rod 4213 rises to its limit position, the second limiting member 425 will abut against the lower side of the first connecting plate 423 to limit the rise of the guide rod 4213. Thus, the first limiting member 424 and the second limiting member 425 achieve the lifting and lowering limit of the pressing structure. In this embodiment, by respectively sleeved the first limiting member 424 and the second limiting member 425 on the guide rod 4213, the space occupied by the first limiting member 424 and the second limiting member 425 can be reduced, the volume of the entire measuring instrument 400 can be reduced, and the maintenance space can be expanded, thus realizing the lightweighting, miniaturization and convenient installation and maintenance of the entire measuring instrument 400.

[0071] In some embodiments, please refer to Figure 8 A first mating member 426 and a second mating member 427 are respectively installed on opposite sides of the first connecting plate 423. A guide rod 4213 is movably inserted through the first connecting plate 423, the first mating member 426, and the second mating member 427. When the guide rod 4213 descends to its limit position, the first limiting member 424 abuts against the first mating member 426 to restrict the descent of the guide rod 4213; when the guide rod 4213 rises to its limit position, the second limiting member 425 abuts against the second mating member 427 to restrict the rise of the guide rod 4213.

[0072] In some embodiments, please refer to Figure 7The second drive unit 500 includes a second linear motor 510, which comprises a second stator 511 and a second mover 512. The second stator 511 is mounted on the frame 100, and the second mover 512 is mounted on the mounting platform 200. The working principle of the second linear motor 510 is the same as that of the first linear motor 310, and will not be described in detail here. The second linear motor 510 has the advantages of high speed, high acceleration, and high responsiveness, thereby improving the detection efficiency of the entire detection equipment. It is understood that in other embodiments of this application, the second drive unit 500 may also include a ball screw mechanism, a screw and nut mechanism, a belt transmission mechanism, a chain transmission mechanism, or a gear and rack mechanism, etc., and is not limited to these specific mechanisms.

[0073] Optionally, each of the second linear motors 510 is distributed along the second direction Y and at intervals along the first direction X.

[0074] In some embodiments, please refer to Figure 7 The testing equipment also includes a second guide section 800, which includes a second guide rail 810 and a second slider 820. The second guide rail 810 extends along the second direction Y and is mounted on the frame 100. The second slider 820 is mounted on the mounting platform 200 and slides on the second guide rail 810, thereby guiding the mounting platform 200 to move along the second direction Y.

[0075] In some embodiments, please refer to Figure 2 and Figure 3 The frame 100 includes a base 110, a shim 130, and a crossbeam 120. The second drive unit 500 is mounted on the base 110, and the mounting platform 200 is mounted on the output end of the second drive unit 500. The shim 130 is located on the base 110 and surrounds the mounting platform 200. The opposite ends of the crossbeam 120 are respectively mounted on the shim 130, and the first drive unit 300 is mounted on the crossbeam 120.

[0076] In some embodiments, please refer to Figure 1This testing device is primarily used to detect the depth of back-drilled holes 21 on a PCB board. Specifically, the PCB board has a first surface 22 and a second surface 23 arranged opposite to each other, and the back-drilled hole 21 is drilled from the second surface 23 to a preset depth. During assembly, the PCB board 2 is mounted on the mounting platform 200 with the second surface 23 facing upwards. The measuring device 410 is located above the second surface 23 of the PCB board 2, and the actual depth of the back-drilled hole 21 can be directly measured from the second surface 23 of the PCB board using the measuring device 410. Specifically, a first distance D1 from the measuring device 410 to the second surface 23 of the PCB board can be obtained first, and then a second distance D2 from the measuring instrument 400 to the signal layer position of the back-drilled hole 21 can be obtained. The actual depth of the back-drilled hole 21 is obtained by subtracting the first distance D1 from the second distance D2. It is understood that in other embodiments of this application, this testing device can also be used to detect the depth of other holes in the PCB board, such as the depth of blind vias, which is not the only limitation here.

[0077] In some embodiments, the measuring device 410 is used to transmit and receive infrared light to measure the depth of each back-drilled hole 21 based on the interference signal of the infrared light. Specifically, the measuring device 410 is a measuring device 410 made by combining the principles of spectral confocalization and Michelson interferometry. Its specific structure and principle will be described in detail in another patent of the applicant and will not be described in detail here. In this embodiment, by using the above-mentioned measuring device 410, the measurement accuracy of the actual hole depth of the back-drilled hole 21 can be improved. It is understood that in other embodiments of this application, the measuring device 410 may also be a measuring device 410 that detects the depth of the back-drilled hole 21 by emitting light into the back-drilled hole 21, such as a spectral confocalization instrument, a 3D camera, a telecentric lens, a white light interferometer, a laser rangefinder, a spectral confocal displacement sensor, and a displacement sensor, etc., and is not limited to these here.

[0078] In some other embodiments of this application, the third drive unit 600 may be connected between the frame 100 and the first drive unit 300. Specifically, the third drive unit 600 is mounted on the frame 100, the first drive unit 300 is mounted on the output end of the third drive unit 600, and the measuring instrument 400 is mounted on the output end of the first drive unit 300. The third drive unit 600 drives the first drive unit 300 and the measuring instrument 400 to move synchronously up and down. Then, the first drive unit 300 drives the measuring instrument 400 to move along the first direction X. The second drive unit 500 drives the mounting platform 200 along the second direction Y sequentially to adjust the horizontal relative position of the measuring instrument 400 and the workpiece 2 under test. Then, the measuring instrument 400 can be used to detect the workpiece 2 under test. Alternatively, the positions of the measuring instrument 400 and the mounting platform 200 along the first direction X and the second direction Y can be adjusted first by the first driving unit 300 and the second driving unit 500 respectively, and then the positions of the first driving unit 300 and the measuring instrument 400 along the vertical direction Z can be adjusted by the third driving unit 600 so that the measuring instrument 400 can detect the workpiece 2 under test.

[0079] In some embodiments, please refer to Figure 10 The testing equipment also includes a first positioning component 1100, a second positioning component 1200, a first movable component 1300, a second movable component 1400, and a universal ball 1500. The first positioning component 1100 and the first movable component 1300 are spaced apart along a first direction X, and the second positioning component 1200 and the second movable component 1400 are spaced apart along a second direction Y. The first movable component 1300 and the second movable component 1400 are used to push the test piece 2 towards the first positioning component 1100 and the second positioning component 1200, respectively, so that the first positioning component 1100, the second positioning component 1200, the first movable component 1300, and the second movable component 1400 respectively abut against the four sides of the test piece 2. The universal ball 1500 protrudes from the mounting platform 200 to support the test piece 2 before the first movable component 1300 and the second movable component 1400 push the test piece 2, and descends after the test piece 2 is positioned so that the test piece 2 is supported on the mounting platform 200.

[0080] Specifically, the omnidirectional ball 1500 is first raised until it protrudes from the mounting platform 200. Then, the test piece 2 is placed on the omnidirectional ball 1500, with its four sides corresponding to the first positioning component 1100, the second positioning component 1200, the first movable component 1300, and the second movable component 1400, respectively. The first movable component 1300 and the second movable component 1400 then push the test piece 2 towards the first positioning component 1100 and the second positioning component 1200, respectively, until the first positioning component 1100, the second positioning component 1200, the first movable component 1300, and the second movable component 1400 abut against the four sides of the test piece 2, thus achieving positioning of the test piece 2. The omnidirectional ball 1500 reduces the friction of the test piece 2 during movement, facilitating position adjustment of the test piece 2.

[0081] In some embodiments, the detection device further includes a fifth lifting drive (not shown), with the universal ball 1500 mounted at the output end of the fifth lifting drive, and the universal ball 1500 being driven to rise and fall by the fifth lifting drive.

[0082] Optionally, the fifth lifting drive component can be a linear cylinder or a linear motor.

[0083] In some embodiments, please refer to Figure 12 The first positioning component 1100 includes a first lifting drive 1110 and a first positioning component 1120. The first lifting drive 1110 is used to drive the first positioning component 1120 to rise above the mounting platform 200 or to descend and retract below the mounting platform 200. This configuration allows the first positioning component 1120 to rise when positioning of the test piece 2 is required, and to descend when positioning is not required to avoid other structures.

[0084] In some embodiments, the second positioning component 1200 includes a second lifting drive (not shown) and a second positioning member (not shown). The second lifting drive is used to drive the second positioning member to rise above the mounting platform 200 or to descend and retract below the mounting platform 200. This configuration allows the second positioning member to rise when positioning of the test piece 2 is required, and to descend to avoid other structures when positioning is not required.

[0085] In some embodiments, please refer to Figure 12 The position of the first positioning component 1100 along the first direction X is adjustable. This setting allows the position of the first positioning component 1100 to be selected according to the actual size of the test piece 2 along the first direction X, so as to achieve test pieces 2 of different sizes along the first direction X.

[0086] In some embodiments, please refer to Figure 12The position of the second positioning component 1200 along the second direction Y is adjustable. This setting allows the position of the second positioning component 1200 to be selected according to the actual size of the test piece 2 along the second direction Y, so as to achieve test pieces 2 with different sizes along the second direction Y.

[0087] In some embodiments, please refer to Figure 12 The position of the first positioning component 1100 along the first direction X is adjustable, and the position of the second positioning component 1200 along the second direction Y is adjustable, so that it can be applied to test pieces 2 of different sizes.

[0088] Optionally, please refer to Figure 12 The mounting platform 200 is provided with a fastener 1600 and a mounting groove 210 extending along the first direction X is formed on the mounting platform 200. The first positioning component 1100 can be installed at different positions in the mounting groove 210 through the fastener 1600.

[0089] In some embodiments, please refer to Figure 11 The first movable component 1300 includes a third lifting drive 1310 and a third positioning component 1320. The third lifting drive 1310 is used to drive the third positioning component 1320 to rise above the mounting platform 200 or to descend and retract below the mounting platform 200. This configuration allows the third positioning component 1320 to rise when positioning of the test piece 2 is required, and to descend to avoid other structures when positioning is not required.

[0090] In some embodiments, please refer to Figure 11 The second movable component 1400 includes a fourth lifting drive (not shown) and a fourth positioning component (not shown). The fourth lifting drive is used to drive the fourth positioning component to rise above the mounting platform 200 or to descend and retract below the mounting platform 200. This arrangement allows the fourth positioning component to rise when positioning of the test piece 2 is required, and to descend to avoid other structures when positioning is not required.

[0091] In some embodiments, please refer to Figure 11 The first active component 1300 also includes a first horizontal drive 1330, and a third lifting drive 1310 is installed at the output end of the first horizontal drive 1330. The first horizontal drive 1330 is used to drive the third lifting drive 1310 to move along the first direction X, so as to push the material to the first positioning member 1120 through the third positioning member 1320.

[0092] In some embodiments, please refer to Figure 11The second active component 1400 also includes a second horizontal drive (not shown), and a fourth lifting drive is installed at the output end of the second horizontal drive. The second horizontal drive is used to drive the fourth lifting drive to move along the second direction Y, so as to push the material to move towards the second positioning member through the fourth positioning member.

[0093] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A testing device, characterized in that, It includes a frame and at least two detection units, each of which is disposed on the frame and arranged sequentially along a first direction; The detection unit includes: The mounting platform is used to place the device under test. A measuring instrument is positioned above the mounting platform and is used to inspect the part to be tested; A first drive unit is disposed on the frame and is used to drive the measuring instrument to move along the first direction; The second drive unit is disposed on the frame and is used to drive the mounting platform to move along the second direction; Wherein, both the first direction and the second direction are perpendicular to the vertical direction, and the first direction intersects the second direction; The first drive unit includes a first linear motor, which includes a first stator and a first mover. The first stator includes a stator core mounted on the frame and a first coil wound around the stator core. The first mover is connected to the measuring instrument and has a first magnet inside. Each stator core in each first stator is integrally formed.

2. The detection device as described in claim 1, characterized in that, The number of detection units is two; or the number of detection units is six.

3. The detection device as described in claim 1, characterized in that, Each of the first driving units in each of the aforementioned detection units operates independently; And / or, each of the second driving units in each of the detection units operates independently; And / or, each of the measuring instruments in each of the detection units operates independently.

4. The detection device according to any one of claims 1 to 3, characterized in that, The testing equipment further includes a first guide section, which includes a first guide rail and a plurality of first sliders. The first guide rail is mounted on the frame and extends along the first direction. Each of the measuring instruments is connected to the first slider, and each first slider is slidably disposed on the first guide rail.

5. The testing equipment according to any one of claims 1 to 3, characterized in that, The detection device also includes a third drive unit, which is used to output movement in the vertical direction; The third driving unit is installed at the output end of the first driving unit, and the measuring instrument is installed at the output end of the third driving unit. Alternatively, the third drive unit is mounted on the frame, the first drive unit is mounted on the output end of the third drive unit, and the measuring instrument is mounted on the output end of the first drive unit.

6. The detection device according to any one of claims 1 to 3, characterized in that, The measuring instrument includes a measuring device and a visual positioning device. The visual positioning device is used to locate the position of the part to be measured in the test piece, and the measuring device is used to detect the part to be measured.

7. The detection device as described in claim 6, characterized in that, The measuring instrument also includes a pressing device located above the workpiece to be tested, which is used to press against the side of the workpiece to be tested that is away from the mounting platform.

8. The detection device as described in claim 7, characterized in that, The pressing device is in the shape of a three-dimensional frame. The measuring device is located inside the pressing device, and the visual positioning device is located outside the pressing device and on one side of the measuring device along the first direction.

9. The detection device as described in claim 7, characterized in that, The pressing device includes a pressing drive, a pressing structure, and a first connecting plate. The first connecting plate is installed at the output end of the first driving unit. The pressing structure includes a driving plate, a pressure plate, and a guide rod connected between the driving plate and the pressure plate. The driving plate, the first connecting plate, and the pressure plate are arranged in sequence at intervals. The pressing drive connects the driving plate and the first connecting plate. The pressing drive is used to drive the driving plate to rise and fall, thereby driving the driving plate, the guide rod, and the pressure plate to rise and fall. The measuring device is installed on the first connecting plate and located between the first connecting plate and the pressure plate.

10. The detection device as described in claim 9, characterized in that, The guide rod is fitted with a first limiting member and a second limiting member. The first limiting member and the second limiting member are respectively located on opposite sides of the first connecting plate. The first limiting member and the second limiting member are used to abut and limit the opposite sides of the first connecting plate respectively.

11. The detection device according to any one of claims 1 to 3, characterized in that, The testing device further includes a first positioning component, a second positioning component, a first movable component, a second movable component, and a omnidirectional ball. The first positioning component and the first movable component are spaced apart along the first direction, and the second positioning component and the second movable component are spaced apart along the second direction. The first movable component and the second movable component are used to push the test piece toward the first positioning component and the second positioning component, respectively, so that the first positioning component, the second positioning component, the first movable component, and the second movable component respectively abut against the four sides of the test piece. The omnidirectional ball protrudes from the mounting platform to support the test piece before the first movable component and the second movable component push the test piece, and descends after the test piece is positioned to support the test piece on the mounting platform.

12. The detection device as described in claim 11, characterized in that, The first positioning component includes a first lifting drive and a first positioning component. The first lifting drive is used to drive the first positioning component to rise above the mounting platform or to descend and retract below the mounting platform. And / or, the second positioning component includes a second lifting drive and a second positioning component, wherein the second lifting drive is used to drive the second positioning component to rise above the mounting platform or to descend and retract below the mounting platform; And / or, the first active component includes a third lifting drive and a third positioning component, wherein the third lifting drive is used to drive the third positioning component to rise above the mounting platform or to descend and retract below the mounting platform; And / or, the second active component includes a fourth lifting drive and a fourth positioning member, the fourth lifting drive being used to drive the fourth positioning member to rise above the mounting platform or to descend and retract below the mounting platform.

13. The detection device as described in claim 11, characterized in that, The position of the first positioning component along the first direction is adjustable; And / or, the position of the second positioning component along the second direction is adjustable.

Images