Detection device

Abstract

The detection device comprises a base frame, an adsorption assembly and a positioning assembly, the adsorption assembly is arranged on the base frame, the adsorption assembly is provided with an adsorption cavity and a plurality of communicating parts, one side of the adsorption cavity is provided with an opening, the communicating parts are communicated with the adsorption cavity, and the communicating parts are suitable for being communicated with an external air extractor so as to extract air in the adsorption cavity. The adsorption assembly is suitable for bearing the PCB, and the PCB is suitable for covering the opening and is arranged on the adsorption piece; the positioning assembly is arranged on the base frame, and the positioning assembly is suitable for being connected with the detection piece so as to drive the detection piece to move on the base frame in the first direction, the second direction and the third direction, and the detection piece corresponds to the PCB in position and makes contact with the PCB. The detection device with the above structure is beneficial for improving the installation stability of the PCB, and is beneficial for improving the detection precision of the detection piece.

Description

Technical Field

[0001] The utility model relates to the technical field of testing machinery, and particularly relates to a detection device. Background Art

[0002] The flying probe tester is mainly used to test circuit boards, which are divided into two categories. One is to test PCBs, and the other is to test PCBAs. Among them, the flying probe tester for testing PCBs is an instrument for testing PCBs (printed circuit boards) with high component layout density, multiple layers, large wiring density, and small measuring point distances, and mainly tests the insulation and conduction values of the circuit boards.

[0003] In the prior art, one or more adsorption platforms capable of carrying PCBs and a plurality of guiding and positioning structures extending in different directions and slidably connected to each other are provided on the flying probe tester. When it is necessary to test a PCB, the PCB needs to be first placed on the adsorption platform to adsorb and fix the PCB. Then, the detection needle installed on the last guiding and positioning structure is driven by other guiding and positioning structures to contact the PCB, so that the detection needle detects the PCB. In addition, in order to realize the sliding connection between two guiding and positioning structures, a guide rail needs to be installed between the two guiding and positioning structures, that is, the two guiding and positioning structures are slidably connected through the guide rail. Thus, when adjusting the position of the detection needle, one guiding and positioning structure can slide on the other guiding and positioning structure through the guide rail, and then the position of the detection needle is adjusted.

[0004] However, for the existing flying probe tester, the adsorption platform thereon only adsorbs the PCB by an air pump, and the adsorption effect is not good. The guiding and positioning structure thereon realizes the sliding between two guiding and positioning structures through a guide rail, and there is a situation where the moving speeds at both ends of the guiding and positioning structure are inconsistent, resulting in a change in the moving trajectory of the detection needle, and further causing inaccurate positioning. Summary of the Utility Model

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the defects of the existing flying probe tester, which has unstable installation of the PCB and inaccurate positioning of the detection needle.

[0006] For this purpose, the utility model provides a detection device, including:

[0007] A base frame;

[0008] An adsorption component is arranged on the base frame. The adsorption component has an adsorption cavity with one side being open and a plurality of communication parts communicated with the adsorption cavity. The communication parts are adapted to be communicated with an external air extraction device to extract the air in the adsorption cavity. The adsorption component is adapted to carry a PCB board, and the PCB board is adapted to cover the opening arranged on the adsorption component.

[0009] A positioning component is arranged on the base frame. The positioning component is adapted to be connected with a detection piece to drive the detection piece to move along a first direction, a second direction and a third direction on the base frame, and make the position of the detection piece correspond to and contact with the PCB board.

[0010] When the PCB board covers the opening arranged on the adsorption component, under the action of an external air extraction device, the gas in the adsorption cavity is adapted to flow out to the external air extraction device through the communication parts, so that the adsorption cavity is in a negative pressure state, and the PCB board is adsorbed on the adsorption component. The detection piece is adapted to contact with the PCB board under the drive of the positioning component and detect the capacitance of each position on the PCB board to judge whether the PCB board is qualified.

[0011] Optionally, for the above detection device, the adsorption component includes an adsorbent. The adsorbent is arranged on the base frame, and the adsorbent has the adsorption cavity and a plurality of communication parts communicated with the adsorption cavity.

[0012] Optionally, for the above detection device, the adsorption component further includes a carrying structure. The carrying structure covers the opening arranged on the adsorbent to close the adsorption cavity, and the carrying structure is adapted to carry the PCB board.

[0013] Optionally, for the above detection device, a plurality of air permeable channels are arranged at intervals on the carrying structure, so that the adsorption cavity is communicated with the outside through the air permeable channels. When the external air extraction device extracts the air in the adsorption cavity, the outflow rate of the gas in the adsorption cavity is greater than the inflow rate of the external air, so that the adsorption cavity is in a negative pressure state.

[0014] Optionally, for the above detection device, the carrying structure includes a plurality of insulating parts. All the insulating parts are stacked, and the air permeable channels are formed on all the insulating parts. The PCB board is adapted to be placed on the insulating parts.

[0015] Optionally, for the above detection device, the carrier structure further includes a first fitting provided with the ventilation channel. The first fitting is disposed between any two adjacent insulating members, and the first fitting is adapted to be connected to an external power source so as to form a first capacitor between the first fitting and the PCB board after the PCB board is powered on.

[0016] Optionally, for the above detection device, the carrier structure further includes a second fitting provided with the ventilation channel. The second fitting is disposed between another two adjacent insulating members, and the second fitting is adapted to be connected to an external power source so as to form a second capacitor between the second fitting and the PCB board after the PCB board is powered on.

[0017] Optionally, for the above detection device, the positioning assembly includes a first positioning structure and a second positioning structure. The first positioning structure is disposed on the base frame, and the second positioning structure is slidably disposed on the base frame and is adapted to be connected to the detection member. The first positioning structure includes:

[0018] A first driving member disposed on the base frame;

[0019] A first rotating member connected to the driving end of the first driving member;

[0020] A first moving member threadedly connected to the first rotating member. The first moving member is connected to the second positioning structure so that, under the drive of the first driving member, the first moving member drives the second positioning structure to move along the first direction to position the detection member.

[0021] Optionally, for the above detection device, the positioning assembly further includes a third positioning structure slidably disposed on the second positioning structure and adapted to be connected to the detection member. The second positioning structure includes:

[0022] A sliding member slidably disposed on the base frame and connected to the first moving member;

[0023] A second driving member disposed on the sliding member;

[0024] A second rotating member connected to the driving end of the second driving member;

[0025] A second moving member threadedly connected to the second rotating member. The second moving member is adapted to be connected to the detection member so that, under the drive of the driving end of the second driving member, the second moving member drives the third positioning structure to move along the second direction to position the detection member.

[0026] Optionally, for the above detection device, the third positioning structure includes:

[0027] A fixing member connected to the second moving member;

[0028] A third driving member disposed on the fixing member;

[0029] A driving wheel and a driven wheel, the driving wheel is connected to the driving end of the third driving member to rotate under the drive of the third driving member, and the driven wheel is rotatably disposed on the fixing member;

[0030] A conveyor belt sleeved between the driving wheel and the driven wheel, and the detecting member is adapted to be connected to the conveyor belt, so that under the drive of the third driving member, the driving wheel drives the driven wheel and the conveyor belt to rotate, and the conveyor belt is adapted to drive the detecting member to move along the third direction, so that the detecting member approaches or moves away from the PCB board.

[0031] Optionally, the above detection device further includes a guide rail assembly, the guide rail assembly includes a first guide rail and a second guide rail, the first guide rail and the second guide rail are parallel to each other and are spaced apart on the base frame;

[0032] The first positioning structure is disposed between the first guide rail and the second guide rail and is parallel to the first guide rail, and both ends of the sliding member are slidably connected to the first guide rail and the second guide rail respectively, and the size of the guide rail away from the first positioning structure is smaller than the size of the guide rail close to the first positioning structure, so as to reduce the friction between the end of the sliding member and the guide rail away from the first positioning structure.

[0033] The technical solution provided by the present utility model has the following advantages:

[0034] 1. The detection device provided by the present utility model includes an adsorption component and a positioning component disposed on a base frame. The adsorption component is disposed on the base frame and has an adsorption cavity with an open side and a plurality of communication parts communicated with the adsorption cavity. The communication parts can be communicated with an external air extraction device, so that the air in the adsorption cavity can be pumped out to the external air extraction device under the action of the external air extraction device. At the same time, the adsorption component can carry a PCB board, and the PCB board generally covers the opening on the adsorbent, thus closing the adsorption cavity. In addition, when the air in the adsorption cavity flows out to the external air extraction device through the communication parts, the adsorption cavity will be in a negative pressure state. Therefore, when the PCB board covers the opening on the adsorption component, the negative pressure can adsorb the PCB board on the adsorption component to prevent the PCB board from moving on the adsorption component, resulting in inaccurate detection results by the detection component. The positioning component is specifically disposed on the base frame and can be connected to the detection component. Thus, under the drive of the positioning component, the detection component can move in the first direction, the second direction, and the third direction, so that the detection component can correspond to the position of the PCB board and can contact the PCB board to improve the positioning accuracy of the detection component and enable the detection component to detect the PCB board and detect the capacitances at various positions on the PCB board for the staff to determine whether the PCB board is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0036] Figure 1 Structural schematic diagram of the detection device provided in the embodiment of the present utility model;

[0037] Figure 2 Structural schematic diagram of the adsorption component provided in the embodiment of the present utility model;

[0038] Figure 3 Structural schematic diagram of the adsorbent provided in the embodiment of the present utility model;

[0039] Figure 4 Structural schematic diagram of the second positioning structure provided in the embodiment of the present utility model;

[0040] Figure 5 Structural schematic diagram of the first positioning structure provided in the embodiment of the present utility model;

[0041] Figure 6Schematic diagram of the third positioning structure provided in the embodiment of the present utility model;

[0042] Description of reference numerals:

[0043] 1 - Base frame;

[0044] 2 - Adsorption assembly; 21 - Adsorbing member; 211 - Adsorption cavity; 212 - Communication part; 22 - Carrying structure;

[0045] 3 - Positioning assembly; 31 - First positioning structure; 311 - First driving member; 312 - First rotating member; 313 - First moving member; 32 - Second positioning structure; 321 - Sliding member; 322 - Second driving member; 33 - Third positioning structure; 331 - Fixing member; 332 - Third driving member; 333 - Driving wheel; 334 - Driven wheel; 335 - Conveyor belt;

[0046] 4 - Guide rail assembly; 41 - First guide rail; 42 - Second guide rail;

[0047] 5 - Detection member. Detailed implementation manners

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0049] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0050] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0051] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0052] Embodiment 1

[0053] This embodiment provides a detection device, as Figures 1 to 6 shown, including a base frame 1, an adsorption component 2 and a positioning component 3. The adsorption component 2 is arranged on the base frame 1. The adsorption component 2 has an adsorption cavity 211 with an opening on one side and a plurality of communication parts 212 communicated with the adsorption cavity 211. The communication parts 212 are adapted to be communicated with an external air extraction device to extract the air in the adsorption cavity 211. The adsorption component 2 is adapted to carry a PCB board, and the PCB board is adapted to cover the opening arranged on the adsorption component 2. The positioning component 3 is arranged on the base frame 1. The positioning component 3 is adapted to be connected with a detection piece 5 to drive the detection piece 5 to move along a first direction, a second direction and a third direction on the base frame 1, and make the position of the detection piece 5 correspond to and contact the PCB board. When the PCB board covers the opening arranged on the adsorption component 2, under the action of the external air extraction device, the gas in the adsorption cavity 211 is adapted to flow out to the external air extraction device through the communication parts 212, so that the adsorption cavity 211 is in a negative pressure state, and the PCB board is adsorbed on the adsorption component 2. The detection piece 5 is adapted to contact the PCB board under the drive of the positioning component 3 and detect the capacitance at each position on the PCB board to determine whether the PCB board is qualified.

[0054] The detection device with the above structure, through the adsorption component 2 and the positioning component 3 arranged on the base frame 1. Among them, the adsorption component 2 is arranged on the base frame 1, and the adsorption component 2 has an adsorption cavity 211 with an opening on one side and several communication parts 212 communicated with the adsorption cavity 211. The communication parts 212 can be communicated with an external air extraction device, so that the air in the adsorption cavity 211 can be pumped out to the external air extraction device under the action of the external air extraction device. At the same time, the adsorption component 2 can carry the PCB board, and the PCB board generally covers the opening on the adsorbent 21, thus closing the adsorption cavity 211. In addition, when the air in the adsorption cavity 211 flows out to the external air extraction device through the communication parts 212, the adsorption cavity 211 will be in a negative pressure state. Therefore, when the PCB board covers the opening on the adsorption component 2, the negative pressure can adsorb the PCB board on the adsorption component 2 to prevent the PCB board from moving on the adsorption component 2, resulting in inaccurate detection results detected by the detection piece 5. The positioning component 3 is specifically arranged on the base frame 1, and the positioning component 3 can be connected to the detection piece 5. Thus, under the drive of the positioning component 3, the detection piece 5 can move in the first direction, the second direction and the third direction, so that the detection piece 5 can correspond to the position of the PCB board and the detection piece 5 can contact the PCB board, so as to improve the positioning accuracy of the detection piece 5 and enable the detection piece 5 to detect the PCB board and detect the capacitances at various positions on the PCB board for the staff to judge whether the PCB board is qualified.

[0055] The detection device provided in this embodiment, as Figures 1 to 3 shown, the adsorption component 2 includes an adsorbent 21. The adsorbent 21 is arranged on the base frame 1, and the adsorbent 21 has an adsorption cavity 211 and several communication parts 212 communicated with the adsorption cavity 211.

[0056] The detection device with the above structure, by setting the adsorption component 2 including the adsorbent 21. The adsorbent 21 is an adsorption plate in this embodiment. The adsorbent 21 is specifically arranged on the base frame 1, and the adsorbent 21 has an adsorption cavity 211 and several communication parts 212 communicated with the adsorption cavity 211. Thus, when installing the PCB board on the base frame 1, the PCB board can be installed on the adsorbent 21, and the PCB board covers the opening on the adsorbent 21.

[0057] The detection device provided in this embodiment, as Figures 1 to 3 shown, the adsorption component 2 further includes a bearing structure 22. The bearing structure 22 covers the opening on the adsorbent 21 to close the adsorption cavity 211, and the bearing structure 22 is suitable for bearing the PCB board.

[0058] The detection device with the above structure, by providing that the adsorption assembly 2 further includes a bearing structure 22, the bearing structure 22 is arranged on the adsorbent 21 and covers the opening arranged on the adsorbent 21, so as to enclose the adsorption cavity 211. At the same time, the bearing structure 22 can bear the PCB board, so that when the PCB board is installed on the adsorbent 21, the position of the PCB board does not need to be adjusted, even if the PCB board covers the opening, and only the PCB board needs to be placed on the bearing structure 22.

[0059] The detection device provided in this embodiment, as Figures 1 to 3 shown, a plurality of air-permeable channels are arranged at intervals on the bearing structure 22, so that the adsorption cavity 211 communicates with the outside through the air-permeable channels, and when the external air extraction device extracts the air in the adsorption cavity 211, the outflow rate of the gas in the adsorption cavity 211 is greater than the inflow rate of the external air, so that the adsorption cavity 211 is in a negative pressure state.

[0060] The detection device with the above structure, through a plurality of air-permeable channels opened on the bearing structure 22, all the air-permeable channels are arranged at intervals on the bearing structure 22, so that when the bearing assembly covers the opening arranged on the adsorbent 21, the air-permeable channels can communicate the adsorption cavity 211 with the outside. At the same time, when the external air extraction device extracts the air in the adsorption cavity 211, the outflow rate of the gas in the adsorption cavity 211 is greater than the inflow rate of the external air, so that a negative pressure can be formed in the adsorption cavity 211, and the negative pressure can be transmitted to the PCB board placed on the bearing structure 22 through the air-permeable channels, thereby adsorbing the PCB board on the bearing structure 22 to improve the installation stability of the PCB board.

[0061] The detection device provided in this embodiment, as Figures 1 to 3 shown, the bearing structure 22 includes a plurality of insulating parts, all the insulating parts are stacked, and air-permeable channels are opened on all the insulating parts, and the PCB board is suitable for being placed on the insulating parts.

[0062] The detection device with the above structure, by providing that the bearing assembly includes a plurality of insulating parts, the insulating parts are insulating films in this embodiment, all the insulating parts are stacked, and all of them cover the opening arranged on the adsorbent 21. At the same time, air-permeable channels are opened on all the insulating parts, so that when the insulating parts cover the opening, the adsorption cavity 211 can communicate with the outside through the air-permeable channels. In addition, the PCB board can be placed on the insulating parts, so that the PCB board and the adsorbent 21 are not electrified, and when the detection part 5 is used to electrify the PCB board for detection, the detection accuracy of the PCB board can be effectively improved, and the interference of the adsorbent 21 on the detection of the PCB board can be avoided.

[0063] The detection device provided in this embodiment, as Figures 1 to 3As shown, the supporting structure 22 also includes a first mating part with a breathable channel, which is arranged between any two adjacent insulating parts, and the first mating part is suitable for connecting to an external power supply to form a first capacitor between the first mating part and the PCB board after the PCB board is powered on.

[0064] The detection device of the above structure also includes a first matching piece by setting a carrying component. The first matching piece is a first conductive film in this embodiment. The first matching piece is set between two adjacent insulating pieces, that is, the first matching piece and the PCB board are insulated, and the first matching piece is suitable for connection to an external power supply, so that current can exist on the first matching piece. After the PCB board is powered on, a first capacitor can be formed between the first matching piece and the PCB board, and after the detection piece 5 contacts the PCB board, the first capacitance between the PCB board and the first matching piece can be detected, so that the staff can judge whether the PCB board meets the standards, that is, whether the PCB board is qualified according to the size of the first capacitance.

[0065] The detection device provided in this embodiment is as follows: Figures 1 to 3 As shown, the supporting structure 22 also includes a second fitting having a ventilation channel, the second fitting being arranged between two other adjacent insulating members, and the second fitting being suitable for connection to an external power source so as to form a second capacitor between the second fitting and the PCB board after the PCB board is powered on.

[0066] The detection device of the above structure also includes a second matching piece by setting a bearing structure 22. The second matching piece is a second conductive film in this embodiment. The second matching piece is arranged between two adjacent insulating pieces, that is, the second matching piece and the PCB board are insulated, and the second matching piece is suitable for connection to an external power supply, so that current can exist on the second matching piece, and then after the PCB board is powered on, a second capacitor can be formed between the second matching piece and the PCB board, and after the detection piece 5 contacts the PCB board, the second capacitance between the PCB board and the second matching piece can be detected, so that the staff can judge whether the PCB board meets the standards, that is, whether the PCB board is qualified according to the size of the second capacitance.

[0067] The detection device provided in this embodiment is as follows: Figure 1 and Figure 5As shown, the positioning assembly 3 includes a first positioning structure 31 and a second positioning structure 32. The first positioning structure 31 is arranged on the base frame 1, and the second positioning structure 32 is slidably arranged on the base frame 1, and the second positioning structure 32 is suitable for connecting with the detection member 5. The first positioning structure 31 includes a first driving member 311, a first rotating member 312 and a first moving member 313. The first driving member 311 is arranged on the base frame 1; the first rotating member 312 is connected to the driving end of the first driving member 311; the first moving member 313 is threadedly connected to the first rotating member 312, and the first moving member 313 is connected to the second positioning structure 32, so that under the drive of the first driving member 311, the first moving member 313 drives the second positioning structure 32 to move along the first direction to position the detection member 5.

[0068] The detection device of the above structure includes a first positioning structure 31 and a second positioning structure 32 by setting a positioning assembly 3. The first positioning structure 31 is set on the base frame 1, and the second positioning structure 32 is slidably set on the base frame 1, and the second positioning structure 32 can be connected to the detection member 5. At the same time, the first positioning structure 31 specifically includes a first driving member 311, a first rotating member 312 and a first moving member 313. The first driving member 311 is a first motor in this embodiment, the first rotating member 312 is a first threaded screw in this embodiment, and the first moving member 313 is a first moving block in this embodiment. Among them, the first driving member 311 is arranged on the base frame 1, the first rotating member 312 is connected to the driving end of the first driving member 311, so that it rotates under the drive of the first driving member 311, and the first moving member 313 is arranged on the first rotating member 312 and is threadedly connected to the first rotating member 312. In addition, the first moving member 313 is also connected to the second positioning structure 32, so that under the drive of the first driving member 311, the first moving member 313 can drive the second positioning structure 32 to move along the first direction, that is, drive the detection member 5 to move in the first direction, and then position the detection member 5.

[0069] The detection device provided in this embodiment is as follows: Figure 1 and Figure 4 As shown, the positioning assembly 3 also includes a third positioning structure 33, which is slidably arranged on the second positioning structure 32, and the third positioning structure 33 is suitable for connecting with the detection member 5, and the second positioning structure 32 includes a sliding member 321, a second driving member 322, a second rotating member and a second moving member. The sliding member 321 is slidably arranged on the base 1 and is connected to the first moving member 313; the second driving member 322 is arranged on the sliding member 321; the second rotating member is connected to the driving end of the second driving member 322; the second moving member is threadedly connected to the second rotating member, and the second moving member is suitable for connecting with the detection member 5, so that under the drive of the driving end of the second driving member 322, the second moving member drives the third positioning structure 33 to move along the second direction to position the detection member 5.

[0070] The detection device of the above structure also includes a third positioning structure 33 by setting a positioning structure. The third positioning structure 33 is specifically slidably arranged on the second positioning structure 32, and the third positioning structure 33 can also be connected to the detection member 5. The second positioning structure 32 specifically includes a sliding member 321, a second driving member 322, a second rotating member and a second moving member. The sliding member 321 is a sliding plate in this embodiment, the second driving member 322 is a second motor in this embodiment, the second rotating member is a second threaded screw in this embodiment, and the second moving member is a second moving block in this embodiment. The second positioning structure 32 is arranged on the sliding member 321, the sliding member 321 is slidably arranged on the base frame 1, and is connected to the first moving member 313. The first movable member 313 is connected to the first rotating member 312 under the drive of the first driving member 311, and the sliding member 321 can move synchronously under the drive of the first movable member 313. The second driving member 322 is arranged on the sliding member 321, and the second rotating member is connected to the driving end of the second driving member 322, so that it rotates under the drive of the second driving member 322. The second movable member is arranged on the second rotating member and is threadedly connected to the second rotating member. At the same time, the second movable member is also connected to the detection member 5, so that under the drive of the second driving member 322, the second movable member can drive the detection member 5 to move along the second direction, thereby positioning the detection member 5 and making the detection member 5 correspond to the position of the PCB board.

[0071] The detection device provided in this embodiment is as follows: Figure 1 and Figure 6 As shown, the third positioning structure 33 includes a fixing member 331, a third driving member 332, a driving wheel 333, a driven wheel 334 and a conveyor belt 335, the fixing member 331 is connected to the second movable member; the third driving member 332 is arranged on the fixing member 331; the driving wheel 333 is connected to the driving end of the third driving member 332 to rotate under the drive of the third driving member 332, and the driven wheel 334 is rotatably arranged on the fixing member 331; the conveyor belt 335 is sleeved between the driving wheel 333 and the driven wheel 334, and the detection member 5 is suitable for being connected to the conveyor belt 335, so that under the drive of the third driving member 332, the driving wheel 333 drives the driven wheel 334 and the conveyor belt 335 to rotate, and the conveyor belt 335 is suitable for driving the detection member 5 to move along the third direction to make the detection member 5 approach or move away from the PCB board.

[0072] The detection device of the above structure includes a fixing member 331, a third driving member 332, a driving wheel 333, a driven wheel 334 and a conveyor belt 335 by setting a third positioning structure 33. The fixing member 331 is a fixing plate in this embodiment, and the third driving member 332 is a third motor in this embodiment. The fixing member 331 is connected to the second movable member, so that when the second movable member moves on the second rotating member under the drive of the second driving member 322, the fixing member 331 can be driven by the second movable member to move synchronously. The third driving member 332 is set on the fixing member 331, and the driving wheel 333 is connected to the driving end of the third driving member 332. The driven wheel 334 is arranged on the fixed member 331, and the transmission belt is sleeved between the driving wheel 333 and the driven wheel 334, and the detection member 5 is connected to the conveyor belt 335. When the driving wheel 333 rotates, the driving wheel 333 can drive the driven wheel 334 and the conveyor belt 335 to rotate synchronously, so that the conveyor belt 335 can drive the detection member 5 to approach or move away from the adsorption member 21, that is, the detection member 5 can approach or move away from the PCB board, so that the detection member 5 can contact the PCB board and detect the PCB board, or end the detection of the PCB board, which is beneficial to improve the movement accuracy of the detection member 5.

[0073] The detection device provided in this embodiment is as follows: Figures 1 to 4 As shown, it also includes a guide rail assembly 4, which includes a first guide rail 41 and a second guide rail 42. The first guide rail 41 and the second guide rail 42 are arranged parallel to each other and spaced apart on the base frame 1; the first positioning structure 31 is arranged between the first guide rail 41 and the second guide rail 42, and is arranged parallel to the first guide rail 41, and the two ends of the sliding member 321 are respectively slidably connected to the first guide rail 41 and the second guide rail 42, and the size of the guide rail away from the first positioning structure 31 is smaller than the size of the guide rail close to the first positioning structure 31, so as to reduce the friction between the end of the sliding member 321 and the guide rail away from the first positioning structure 31.

[0074] The detection device of the above structure is provided with a guide rail assembly 4 on the base frame 1. The guide rail assembly 4 specifically includes a first guide rail 41 and a second guide rail 42, and the first guide rail 41 and the second guide rail 42 are spaced apart and arranged on the base frame 1. At the same time, the first guide rail 41 and the second guide rail 42 are arranged in parallel. In addition, the first positioning structure 31 is provided between the first guide rail 41 and the second guide rail 42, and the first positioning structure 31 and the first guide rail 41 are arranged in parallel. The two ends of the sliding member 321 are respectively slidably connected to the first guide rail 41 and the second guide rail 42, so that when the first moving member 313 drives the sliding member 321 to move on the guide rail structure, it will not interfere with the movement of the sliding member 321. In addition, due to the layout problem of the detection device, the first positioning structure 31 cannot be provided in the first The guide rail 41 and the second guide rail 42 are located in the middle, and since the driving force of the first positioning structure 31 on the end of the sliding member 321 that is slidably connected to the guide rail close to the first positioning structure 31 is greater than the driving force of the first positioning structure 31 on the end of the sliding member 321 that is slidably connected to the guide rail away from the first positioning structure 31, the two ends of the sliding member 321 cannot move synchronously, and then in the first guide rail 41 and the second guide rail 42, the size of the guide rail away from the first positioning structure 31 is smaller than the size of the guide rail close to the first positioning structure 31, so that the sliding friction between the sliding member 321 and the guide rail away from the first positioning structure 31 is reduced, and then the two ends of the sliding member 321 can move synchronously, which is ultimately beneficial to improving the accuracy of the movement of the detection member 5, that is, it is beneficial to improve the positioning accuracy of the detection member 5.

[0075] The detection device provided by the present utility model includes an adsorption component 2 and a positioning component 3 provided on a base frame 1. Among them, the adsorption component 2 is provided on the base frame 1, and the adsorption component 2 has an adsorption cavity 211 with one side open and a number of communication parts 212 communicated with the adsorption cavity 211. The communication parts 212 can be communicated with an external air extraction device, so that the air in the adsorption cavity 211 can be pumped out to the external air extraction device under the action of the external air extraction device. At the same time, the adsorption component 2 can carry a PCB board, and the PCB board generally covers the opening provided on the adsorbent 21, thereby closing the adsorption cavity 211. In addition, when the air in the adsorption cavity 211 flows out to the external air extraction device through the communication parts 212, the adsorption cavity 211 will be in a negative pressure state. Therefore, when the PCB board covers the opening provided on the adsorption component 2, the negative pressure can adsorb the PCB board on the adsorption component 2 to prevent the PCB board from moving on the adsorption component 2, resulting in inaccurate detection results detected by the detection component 5. The positioning component 3 is specifically provided on the base frame 1, and the positioning component 3 can be connected to the detection component 5. Therefore, under the drive of the positioning component 3, the detection component 5 can move in the first direction, the second direction and the third direction, so that the detection component 5 can correspond to the position of the PCB board and the detection component 5 can contact the PCB board, so as to improve the positioning accuracy of the detection component 5 and enable the detection component 5 to detect the PCB board and detect the capacitances at various positions on the PCB board for the staff to judge whether the PCB board is qualified.

[0076] Obviously, the above embodiments are only examples given for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present utility model.

Claims

1. A detection device, characterized in that, Comprising: A base frame (1); An adsorption component (2), arranged on the base frame (1), the adsorption component (2) has an adsorption cavity (211) with an opening on one side and a number of communication parts (212) communicated with the adsorption cavity (211), the communication parts (212) are adapted to be communicated with an external air extraction device to extract the air in the adsorption cavity (211), the adsorption component (2) is adapted to carry a PCB board, and the PCB board is adapted to cover the opening arranged on the adsorption component (2); A positioning component (3), arranged on the base frame (1), the positioning component (3) is adapted to be connected with a detection piece (5) to drive the detection piece (5) to move along a first direction, a second direction and a third direction on the base frame (1), and make the detection piece (5) correspond to the position of the PCB board and contact the PCB board; When the PCB board covers the opening arranged on the adsorption component (2), under the action of an external air extraction device, the gas in the adsorption cavity (211) is adapted to flow out to the external air extraction device through the communication parts (212), so that the adsorption cavity (211) is in a negative pressure state, and the PCB board is adsorbed on the adsorption component (2), the detection piece (5) is adapted to contact the PCB board under the drive of the positioning component (3) and detect the capacitance of each position on the PCB board to judge whether the PCB board is qualified.

2. The detection device according to claim 1, characterized in that, The adsorption component (2) includes an adsorption part (21), the adsorption part (21) is arranged on the base frame (1), and the adsorption part (21) has the adsorption cavity (211) and a number of communication parts (212) communicated with the adsorption cavity (211).

3. The detection device according to claim 2, characterized in that, The adsorption component (2) further includes a bearing structure (22), the bearing structure (22) covers the opening arranged on the adsorption part (21) to close the adsorption cavity (211), and the bearing structure (22) is adapted to carry the PCB board.

4. The detection device according to claim 3, characterized in that, A number of air permeable channels are arranged at intervals on the bearing structure (22) to enable the adsorption cavity (211) to communicate with the outside through the air permeable channels, and when the external air extraction device extracts the air in the adsorption cavity (211), the outflow rate of the gas in the adsorption cavity (211) is greater than the inflow rate of the external air, so that the adsorption cavity (211) is in a negative pressure state.

5. The detection device according to claim 4, wherein The bearing structure (22) includes a number of insulating parts, all the insulating parts are stacked, and the air permeable channels are opened on all the insulating parts, and the PCB board is adapted to be placed on the insulating parts.

6. The detection device according to claim 5, wherein The bearing structure (22) further includes a first fitting with the air permeable channels opened, the first fitting is arranged between any two adjacent insulating parts, and the first fitting is adapted to be connected with an external power supply to form a first capacitance between the first fitting and the PCB board after the PCB board is powered on.

7. The detection device according to claim 6, characterized in that, The bearing structure (22) further includes a second fitting provided with the ventilation channels, the second fitting is disposed between two adjacent ones of the other insulating members, and the second fitting is adapted to be connected to an external power source to form a second capacitor between the second fitting and the PCB board after the PCB board is powered on.

8. The detection device according to any one of claims 1-7, characterized in that, The positioning assembly (3) includes a first positioning structure (31) and a second positioning structure (32). The first positioning structure (31) is disposed on the base frame (1). The second positioning structure (32) is slidably disposed on the base frame (1) and is adapted to be connected to the detecting member (5). The first positioning structure (31) includes: A first driving member (311) disposed on the base frame (1); A first rotating member (312) connected to the driving end of the first driving member (311); A first moving member (313) threadedly connected to the first rotating member (312), and the first moving member (313) is connected to the second positioning structure (32) so that, under the drive of the first driving member (311), the first moving member (313) drives the second positioning structure (32) to move along the first direction to position the detecting member (5).

9. The detection device according to claim 8, wherein The positioning assembly (3) further includes a third positioning structure (33). The third positioning structure (33) is slidably disposed on the second positioning structure (32) and is adapted to be connected to the detecting member (5). The second positioning structure (32) includes: A sliding member (321) slidably disposed on the base frame (1) and connected to the first moving member (313); A second driving member (322) disposed on the sliding member (321); A second rotating member connected to the driving end of the second driving member (322); A second moving member threadedly connected to the second rotating member, and the second moving member is adapted to be connected to the detecting member (5) so that, under the drive of the driving end of the second driving member (322), the second moving member drives the third positioning structure (33) to move along the second direction to position the detecting member (5).

10. The detection device according to claim 9, characterized in that, The third positioning structure (33) includes: A fixing member (331) connected to the second moving member; A third driving member (332) disposed on the fixing member (331); A driving wheel (333) and a driven wheel (334). The driving wheel (333) is connected to the driving end of the third driving member (332) to rotate under the drive of the third driving member (332), and the driven wheel (334) is rotatably disposed on the fixing member (331); A conveyor belt (335) is sleeved between the driving wheel (333) and the driven wheel (334). The detection member (5) is adapted to be connected to the conveyor belt (335). Under the drive of the third driving member (332), the driving wheel (333) drives the driven wheel (334) and the conveyor belt (335) to rotate. The conveyor belt (335) is adapted to drive the detection member (5) to move along the third direction, so that the detection member (5) approaches or moves away from the PCB board.

11. The detection device according to claim 10, wherein It further includes a guide rail assembly (4). The guide rail assembly (4) includes a first guide rail (41) and a second guide rail (42). The first guide rail (41) and the second guide rail (42) are parallel to each other and are spaced apart on the base frame (1). The first positioning structure (31) is arranged between the first guide rail (41) and the second guide rail (42) and is arranged parallel to the first guide rail (41). Both ends of the sliding member (321) are slidably connected to the first guide rail (41) and the second guide rail (42) respectively, and the size of the guide rail away from the first positioning structure (31) is smaller than the size of the guide rail close to the first positioning structure (31), so as to reduce the friction force between the end of the sliding member (321) and the guide rail away from the first positioning structure (31).

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