Positioning mechanism and detection device

Abstract

The utility model discloses a positioning mechanism and a detection device, the positioning mechanism comprises a mounting piece, a guide rail structure and a positioning structure, and the mounting piece is suitable for being arranged on the detection device; the guide rail structure comprises a first guide rail and a second guide rail, and the first guide rail and the second guide rail are arranged on the mounting piece in a spaced mode and are arranged in parallel; the positioning structure comprises a first positioning assembly and a second positioning assembly, the first positioning assembly is arranged on the mounting piece, the second positioning assembly is suitable for being connected with the detection piece, the two ends of the second positioning assembly are suitable for being slidably connected with the first guide rail and the second guide rail respectively, and the second positioning assembly is connected with the driving end of the first positioning assembly; under the driving of the first positioning assembly, the second positioning assembly is suitable for driving the detection piece to slide in the extending direction of the first guide rail and the second guide rail so as to position the detection piece. The positioning mechanism with the structure is beneficial to improving the positioning 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 positioning mechanism and a detection device. Background Art

[0002] A 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 density of component layout, multiple layers, large wiring density, and small distance between measurement points, and mainly tests the insulation and conduction values of the circuit boards.

[0003] In the prior art, a plurality of guiding and positioning structures extending in different directions are arranged on a flying probe tester. These guiding and positioning structures are slidably connected to each other in pairs, and a detection needle is arranged on the last guiding and positioning structure, so that the detection needle can be driven by other guiding and positioning structures to move to a position directly opposite to the PCB board, and contact the PCB board under the drive of other guiding and positioning structures, thereby detecting the PCB board. In order to realize the sliding connection between two guiding and positioning structures, the use of a guide rail is required, that is, the two guiding and positioning structures are slidably connected through the guide rail, so that 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, thereby adjusting the position of the detection needle.

[0004] However, for the guiding and positioning structures on the existing flying probe tester, which realize the sliding between two guiding and positioning structures through the guide rail, there is a problem that the moving speeds at both ends of the guiding and positioning structures are inconsistent, resulting in a change in the moving trajectory of the detection needle, and thus inaccurate positioning. Summary of the Utility Model

[0005] Therefore, the technical problem to be solved by the present utility model is to overcome the defect that for the guiding and positioning structures on the existing flying probe tester during the moving process, the moving speeds at both ends are inconsistent, resulting in a change in the moving trajectory of the detection needle, and thus inaccurate positioning.

[0006] To this end, the present utility model provides a positioning mechanism, comprising:

[0007] A mounting member, which is adapted to be arranged on the detection device;

[0008] A guide rail structure, comprising a first guide rail and a second guide rail, the first guide rail and the second guide rail are arranged at intervals on the mounting member and are parallel to each other;

[0009] Positioning structure, including a first positioning component and a second positioning component. The first positioning component is arranged on the mounting member, and the second positioning component is adapted to be connected to the detection member. Both ends of the second positioning component are adapted to be slidably connected to the first guide rail and the second guide rail respectively, and the second positioning component is connected to the driving end of the first positioning component. Under the driving of the first positioning component, the second positioning component is adapted to drive the detection member to slide along the extending direction of the first guide rail and the second guide rail to position the detection member;

[0010] In the first guide rail and the second guide rail, the size of the guide rail far from the first positioning component is smaller than the size of the guide rail close to the first positioning component, so as to reduce the friction force between the end of the second positioning component and the guide rail far from the first positioning component.

[0011] Optionally, for the above positioning mechanism, the first positioning component includes:

[0012] A first driving member arranged on the mounting member;

[0013] A first rotating member connected to the driving end of the first driving member;

[0014] A first moving member threadedly connected to the first rotating member. The first moving member is connected to the second positioning component to serve as the driving end of the first positioning component.

[0015] Optionally, for the above positioning mechanism, the first positioning component further includes an adapter. Both ends of the adapter are respectively connected to the first moving member and the second positioning component, so that the first moving member drives the second positioning component to move.

[0016] Optionally, for the above positioning mechanism, the second positioning component includes a sliding member. Both ends of the sliding member are slidably connected to the first guide rail and the second guide rail respectively, and the sliding member is also connected to one end of the adapter.

[0017] Optionally, for the above positioning mechanism, the second positioning component further includes:

[0018] A second driving member arranged on the sliding member;

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

[0020] A second moving member threadedly connected to the second rotating member. The second moving member is adapted to be connected to the detection member. Under the driving of the driving end of the second driving member, the second moving member drives the detection member to move to position the detection member.

[0021] Optionally, for the above-mentioned positioning mechanism, the positioning structure further includes a third positioning component, and the third positioning component includes:

[0022] A fixing member, which is connected to the second moving member;

[0023] A transmission unit, which is arranged on the fixing member, and the detecting member is arranged on the transmission unit to approach or move away from the mounting member under the drive of the transmission unit.

[0024] Optionally, for the above-mentioned positioning mechanism, the transmission unit includes:

[0025] A third driving member, which is arranged on the fixing member;

[0026] A driving wheel and a driven wheel, the driving wheel is connected to the driving end of the third driving member, and the driven wheel is rotatably arranged on the fixing member;

[0027] A conveyor belt, which is 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 drives the detecting member to approach or move away from the mounting member.

[0028] Optionally, for the above-mentioned positioning mechanism, the first positioning component and the guide rail structure are arranged in parallel, and the first positioning component, the second positioning component and the third positioning component are arranged perpendicular to each other pairwise.

[0029] Optionally, for the above-mentioned positioning mechanism, the first positioning component further includes a first fastener, and the first fastener is connected to the end of the first rotating member away from the first driving member to limit the deformation of the first rotating member;

[0030] The second positioning component further includes a second fastener, and the second fastener is connected to the end of the second rotating member away from the second driving member to limit the deformation of the second rotating member.

[0031] A detection device includes the above-mentioned positioning mechanism.

[0032] The technical solution provided by the present utility model has the following advantages:

[0033] 1. The positioning mechanism provided by the present utility model includes a guide rail structure and a positioning structure provided on a mounting member. The mounting member can be arranged on a detection device, so that both the guide rail structure and the positioning structure are mounted on the detection device. The guide rail structure specifically includes a first guide rail and a second guide rail, and the first guide rail and the second guide rail are arranged at intervals on the mounting member. At the same time, the first guide rail and the second guide rail are parallel to each other. The positioning structure specifically includes a first positioning component and a second positioning component. The first positioning component is arranged on the mounting member, and the second positioning component can be connected to a detection component. The two ends of the second positioning component are respectively slidably connected to the first guide rail and the second guide rail. At the same time, the second positioning component is also connected to the driving end of the first positioning component. Therefore, under the drive of the first positioning component, the second positioning component can slide along the extension direction of the first guide rail and the second guide rail, and further enable the detection component to move along with the sliding of the second positioning component, so as to position the detection component, make the detection component correspond to the position of the PCB board placed on the detection device, and enable the detection component to detect the PCB board. In addition, due to the layout problem of the detection device, that is, it is necessary to reserve space for the adsorption platform on the detection device, so that the first positioning component cannot be arranged exactly in the middle of the first guide rail and the second guide rail. And because the driving force received by the end of the second positioning component slidably connected to the guide rail close to the first positioning component from the first positioning component is greater than the driving force received by the end of the second positioning component slidably connected to the guide rail far from the first positioning component, it causes the two ends of the second positioning component to be unable to move synchronously. Furthermore, in the first guide rail and the second guide rail, the size of the guide rail far from the first positioning component is smaller than the size of the guide rail close to the first positioning component, so as to reduce the sliding friction between the second positioning component and the guide rail far from the first positioning component, and further enable the two ends of the second positioning component to move synchronously. Finally, it is beneficial to improve the accuracy of the movement of the detection component, that is, it is beneficial to improve the positioning accuracy of the detection component. Description of the Drawings

[0034] 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.

[0035] Figure 1 Structural schematic diagram of the positioning mechanism provided in the embodiment of the present utility model;

[0036] Figure 2 Structural schematic diagram of the second positioning component provided in the embodiment of the present utility model;

[0037] Figure 3Schematic diagram of the first positioning component provided in the embodiment of the present utility model;

[0038] Figure 4 Schematic diagram of the third positioning component provided in the embodiment of the present utility model;

[0039] Explanation of reference numerals:

[0040] 1 - Mounting member;

[0041] 2 - Guide rail structure; 21 - First guide rail; 22 - Second guide rail;

[0042] 3 - Positioning structure; 31 - First positioning component; 311 - First driving member; 312 - First rotating member; 313 - First moving member; 314 - First fastening member; 32 - Second positioning component; 321 - Sliding member; 322 - Second driving member; 33 - Third positioning component; 331 - Fixed member; 332 - Third driving member; 333 - Driving wheel; 334 - Driven wheel; 335 - Conveyor belt;

[0043] 4 - Detection member. Detailed implementation manners

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, 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 creative efforts shall fall within the protection scope of the present utility model.

[0045] 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 thus should not be construed as a limitation to 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.

[0046] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mount", "connected", "connected to" 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 internal communication of 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.

[0047] 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.

[0048] Embodiment 1

[0049] This embodiment provides a positioning mechanism. As Figures 1 to 4 shown, it includes a mounting member 1, a guide rail structure 2, and a positioning structure 3. The mounting member 1 is adapted to be disposed on a detection device; the guide rail structure 2 includes a first guide rail 21 and a second guide rail 22. The first guide rail 21 and the second guide rail 22 are spaced apart on the mounting member 1 and are parallel to each other; the positioning structure 3 includes a first positioning component 31 and a second positioning component 32. The first positioning component 31 is disposed on the mounting member 1. The second positioning component 32 is adapted to be connected to a detection member 4. Two ends of the second positioning component 32 are respectively adapted to be slidably connected to the first guide rail 21 and the second guide rail 22, and the second positioning component 32 is connected to the driving end of the first positioning component 31. So, under the drive of the first positioning component 31, the second positioning component 32 is adapted to drive the detection member 4 to slide along the extending direction of the first guide rail 21 and the second guide rail 22 to position the detection member 4; in the first guide rail 21 and the second guide rail 22, the size of the guide rail far from the first positioning component 31 is smaller than the size of the guide rail close to the first positioning component 31, so as to reduce the friction between the end of the second positioning component 32 and the guide rail far from the first positioning component 31.

[0050] For the positioning mechanism with the above structure, through the guide rail structure 2 and the positioning structure 3 disposed on the mounting member 1, wherein the mounting member 1 can be disposed on the detection device, thereby mounting both the guide rail structure 2 and the positioning structure 3 on the detection device. The guide rail structure 2 specifically includes a first guide rail 21 and a second guide rail 22, and the first guide rail 21 and the second guide rail 22 are spaced apart on the mounting member 1. At the same time, the first guide rail 21 and the second guide rail 22 are parallel to each other. The positioning structure 3 specifically includes a first positioning component 31 and a second positioning component 32. Among them, the first positioning component 31 is disposed on the mounting member 1. The second positioning component 32 can be connected to the detection member 4, and two ends of the second positioning component 32 are respectively slidably connected to the first guide rail 21 and the second guide rail 22. At the same time, the second positioning component 32 is also connected to the driving end of the first positioning component 31. Thus, under the drive of the first positioning component 31, the second positioning component 32 can slide along the extending direction of the first guide rail 21 and the second guide rail 22, and further enable the detection member 4 to move as the second positioning component 32 slides, so as to position the detection member 4, make the detection member 4 correspond to the position of the PCB board placed on the detection device, and enable the detection member 4 to detect the PCB board.

[0051] In addition, due to the layout problem of the detection device, that is, space for the adsorption platform needs to be reserved on the detection device, the first positioning component 31 cannot be arranged exactly in the middle of the first guide rail 21 and the second guide rail 22. Moreover, since the driving force on one end of the second positioning component 32 that is slidably connected to the guide rail close to the first positioning component 31 is greater than the driving force on the end of the second positioning component 32 that is slidably connected to the guide rail far from the first positioning component 31, the two ends of the second positioning component 32 cannot move synchronously. As a result, in the first guide rail 21 and the second guide rail 22, the size of the guide rail far from the first positioning component 31 is smaller than the size of the guide rail close to the first positioning component 31, thereby reducing the sliding friction between the second positioning component 32 and the guide rail far from the first positioning component 31. Further, the two ends of the second positioning component 32 can move synchronously, which ultimately helps to improve the accuracy of the movement of the detection piece 4, that is, helps to improve the positioning accuracy of the detection piece 4.

[0052] The positioning mechanism provided in this embodiment, as Figure 1 and Figure 3 shown, the first positioning component 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 mounting member 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 component 32 to serve as the driving end of the first positioning component 31.

[0053] For the positioning mechanism with the above structure, by setting the first positioning component 31 to include the first driving member 311, the first rotating member 312 and the 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 rod 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 mounting member 1, and the first rotating member 312 is connected to the driving end of the first driving member 311, so as to rotate under the drive of the first driving member 311. The first moving member 313 is arranged on the first rotating member 312 and is threadedly connected to the first rotating member 312, so that the first moving member 313 serves as the driving end of the first positioning component 31. At the same time, the first moving member 313 is also connected to the second positioning component 32. Therefore, under the drive of the first driving member 311, the first moving member 313 can drive the second positioning component 32 to move along the extending direction of the first rotating member 312, that is, drive the detection piece 4 to move in the extending direction of the first rotating member 312, and then position the detection piece 4.

[0054] The positioning mechanism provided in this embodiment, as Figures 1 to 3As shown, the first positioning component 31 further includes an adapter. The two ends of the adapter are respectively connected to the first moving member 313 and the second positioning component 32, so that the first moving member 313 drives the second positioning component 32 to move.

[0055] For the positioning mechanism with the above structure, by setting that the first positioning component 31 includes an adapter, the adapter is a transfer rod in this embodiment, and the two ends of the adapter are respectively connected to the first moving member 313 and the second positioning component 32. Thus, when the first moving member 313 moves on the first rotating member 312 under the drive of the first driving member 311, the first moving member 313 can drive the second positioning component 32 to move synchronously through the adapter.

[0056] The positioning mechanism provided in this embodiment, as Figure 1 and Figure 2 shown, the second positioning component 32 includes a sliding member 321. The two ends of the sliding member 321 are respectively slidably connected to the first guide rail 21 and the second guide rail 22, and the sliding member 321 is also connected to one end of the adapter.

[0057] For the positioning mechanism with the above structure, by setting that the second positioning component 32 includes a sliding member 321, the sliding member 321 is a sliding plate in this embodiment, the two ends of the sliding member 321 are respectively slidably connected to the first guide rail 21 and the second guide rail 22, and the sliding member 321 is also connected to one end of the adapter. Thus, when the first moving member 313 moves on the first rotating member 312 under the drive of the first driving member 311, the sliding member 321 can move synchronously under the drive of the adapter.

[0058] The positioning mechanism provided in this embodiment, as Figures 1 to 3 shown, the second positioning component 32 further includes a second driving member 322, a second rotating member and a second moving member. 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 adapted to be connected to the detecting member 4, so that under the drive of the driving end of the second driving member 322, the second moving member drives the detecting member 4 to move to position the detecting member 4.

[0059] The positioning mechanism with the above structure, by setting that the second positioning component 32 further includes a second driving member 322, a second rotating member, and a second moving member. The second driving member 322 is a second motor in this embodiment, the second rotating member is a second threaded rod in this embodiment, and the second moving member is a second moving block in this embodiment. Among them, 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, and thus rotates under the drive of the second driving member 322. The second moving member is arranged on the second rotating member and is in threaded connection with the second rotating member. At the same time, the second moving member is also connected to the detecting member 4. Thus, under the drive of the second driving member 322, the second moving member can drive the detecting member 4 to move along the extending direction of the second rotating member, thereby positioning the detecting member 4 and making the position of the detecting member 4 correspond to that of the PCB board.

[0060] The positioning mechanism provided in this embodiment, as Figures 1 to 4 shown, the positioning structure 3 further includes a third positioning component 33. The third positioning component 33 includes a fixing member 331 and a transmission unit. The fixing member 331 is connected to the second moving member; the transmission unit is arranged on the fixing member 331, and the detecting member 4 is arranged on the transmission unit to move closer to or away from the mounting member 1 under the drive of the transmission unit.

[0061] The positioning mechanism with the above structure, by setting that the positioning structure 3 includes a third positioning component 33. The third positioning component 33 includes a fixing member 331 and a transmission unit. The fixing member 331 is a fixing plate in this embodiment. Among them, the fixing member 331 is connected to the second moving member. Thus, when the second moving member moves on the second rotating member under the drive of the second driving member 322, the fixing member 331 can move differently from the second moving member. The transmission unit is arranged on the fixing member 331, and the transmission unit is connected to the detecting member 4. Thus, under the drive of the transmission unit, the detecting member 4 can move closer to or away from the mounting member 1, that is, the detecting member 4 can move closer to or away from the PCB board, thereby making the detecting member 4 contact the PCB board and detecting the PCB board, or ending the detection of the PCB board.

[0062] The positioning mechanism provided in this embodiment, as Figure 1 and Figure 4 shown, the transmission unit includes a third driving member 332, a driving wheel 333, a driven wheel 334, and a conveyor belt 335. 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, 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 detecting member 4 is adapted to be connected to the conveyor belt 335. Thus, 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 drives the detecting member 4 to move closer to or away from the mounting member 1.

[0063] For the positioning mechanism with the above structure, by setting the transmission unit to include a third driving member 332, a driving wheel 333, a driven wheel 334 and a transmission belt. The third driving member 332 is a third motor in this embodiment. Among them, 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. The driven wheel 334 is arranged on the fixing member 331. The transmission belt is sleeved between the driving wheel 333 and the driven wheel 334. And the detecting member 4 is connected to the conveyor belt 335. Thus, when the driving wheel 333 rotates, the driving wheel 333 can drive the driven wheel 334 and the conveyor belt 335 to rotate synchronously. Furthermore, the conveyor belt 335 can drive the detecting member 4 to approach or move away from the mounting member 1, that is, the detecting member 4 can approach or move away from the PCB board. Furthermore, the detecting member 4 can contact the PCB board and detect the PCB board, or end the detection of the PCB board, which is beneficial to improving the moving accuracy of the detecting member 4.

[0064] The positioning mechanism provided in this embodiment, as Figures 1 to 4 shown, the first positioning component 31 and the guide rail structure 2 are arranged in parallel, and the first positioning component 31, the second positioning component 32 and the third positioning component 33 are arranged perpendicular to each other in pairs.

[0065] For the positioning mechanism with the above structure, by setting the first positioning component 31 and the guide rail structure 2 to be arranged in parallel, thus when the first positioning component 31 drives the second positioning component 32 to move on the guide rail structure 2, it will not interfere with the movement of the second positioning component 32. And by setting the first positioning component 31, the second positioning component 32 and the third positioning component 33 to be perpendicular to each other in pairs, so that the detecting member 4 can move in three directions of the X, Y and Z axes respectively. Furthermore, it is beneficial to improve the positioning accuracy of the detecting member 4.

[0066] The positioning mechanism provided in this embodiment, as Figure 1 and Figure 3 shown, the first positioning component 31 further includes a first fastener 314. The first fastener 314 is connected to the end of the first rotating member 312 away from the first driving member 311 to limit the deformation of the first rotating member 312. The second positioning component 32 further includes a second fastener. The second fastener is connected to the end of the second rotating member away from the second driving member 322 to limit the deformation of the second rotating member.

[0067] For the positioning mechanism with the above structure, by providing that the first positioning component 31 further includes a first fastener 314 and the second positioning component 32 further includes a second fastener. The first fastener 314 is a first bearing in this embodiment, and the second fastener is a second bearing in this embodiment. Among them, the first fastener 314 is connected to the end of the first rotating member 312 away from the first driving member 311, so as to cooperate with the first driving member 311 to fix the first rotating member 312 on the mounting member 1. And during the rotation of the first rotating member 312, the first fastener 314 can limit the deformation of the first rotating member 312 to avoid the situation that the first rotating member 312 generates heat and deforms due to long-term rotation. The second fastener is connected to the end of the second rotating member away from the second driving member 322, so as to cooperate with the second driving member 322 to fix the second rotating member on the sliding member 321. And during the rotation of the second rotating member, the second fastener can limit the deformation of the second rotating member to avoid the situation that the second rotating member generates heat and deforms due to long-term rotation.

[0068] The positioning mechanism provided by the present utility model includes a guide rail structure 2 and a positioning structure 3 provided on a mounting member 1. Among them, the mounting member 1 can be arranged on a detection device, so that both the guide rail structure 2 and the positioning structure 3 are mounted on the detection device. The guide rail structure 2 specifically includes a first guide rail 21 and a second guide rail 22, and the first guide rail 21 and the second guide rail 22 are arranged at intervals on the mounting member 1. At the same time, the first guide rail 21 and the second guide rail 22 are arranged in parallel. The positioning structure 3 specifically includes a first positioning component 31 and a second positioning component 32. Among them, the first positioning component 31 is arranged on the mounting member 1, the second positioning component 32 can be connected to a detection member 4, and both ends of the second positioning component 32 are slidably connected to the first guide rail 21 and the second guide rail 22 respectively. At the same time, the second positioning component 32 is also connected to the driving end of the first positioning component 31. Thus, under the drive of the first positioning component 31, the second positioning component 32 can slide along the extending direction of the first guide rail 21 and the second guide rail 22, and further enable the detection member 4 to move along with the sliding of the second positioning component 32, so as to position the detection member 4, make the detection member 4 correspond to the position of the PCB board placed on the detection device, and enable the detection member 4 to detect the PCB board. In addition, due to the layout problem of the detection device, that is, the need to reserve space for the adsorption platform on the detection device, the first positioning component 31 cannot be arranged exactly in the middle between the first guide rail 21 and the second guide rail 22. And because the driving force received by the end of the second positioning component 32 that is slidably connected to the guide rail close to the first positioning component 31 is greater than the driving force of the end of the second positioning component 32 that is slidably connected to the guide rail far from the first positioning component 31, the two ends of the second positioning component 32 cannot move synchronously. Further, in the first guide rail 21 and the second guide rail 22, the size of the guide rail far from the first positioning component 31 is smaller than the size of the guide rail close to the first positioning component 31, so that the sliding friction between the second positioning component 32 and the guide rail far from the first positioning component 31 is reduced, and further the two ends of the second positioning component 32 can move synchronously, which is ultimately beneficial to improving the accuracy of the movement of the detection member 4, that is, beneficial to improving the positioning accuracy of the detection member 4.

[0069] Embodiment 2

[0070] This embodiment provides a detection device, such as Figures 1 to 4As shown, it includes the above-mentioned positioning mechanism. For the detection device with the above structure, by setting the detection device to include the above-mentioned positioning mechanism, that is, by setting the guide rail structure 2 and the positioning structure 3 on the mounting member 1. Among them, the mounting member 1 can be set on the detection device, so that both the guide rail structure 2 and the positioning structure 3 are installed on the detection device. The guide rail structure 2 specifically includes a first guide rail 21 and a second guide rail 22, and the first guide rail 21 and the second guide rail 22 are arranged at intervals on the mounting member 1. At the same time, the first guide rail 21 and the second guide rail 22 are parallel to each other. The positioning structure 3 specifically includes a first positioning component 31 and a second positioning component 32. Among them, the first positioning component 31 is set on the mounting member 1, the second positioning component 32 can be connected to the detection piece 4, and both ends of the second positioning component 32 are slidably connected to the first guide rail 21 and the second guide rail 22 respectively. At the same time, the second positioning component 32 is also connected to the driving end of the first positioning component 31. Thus, under the drive of the first positioning component 31, the second positioning component 32 can slide along the extension direction of the first guide rail 21 and the second guide rail 22. Furthermore, the detection piece 4 can move along with the sliding of the second positioning component 32 to position the detection piece 4, so that the detection piece 4 can correspond to the position of the PCB board placed on the detection device, and the detection piece 4 can detect the PCB board. In addition, due to the layout problem of the detection device, that is, it is necessary to reserve space for the adsorption platform on the detection device, so that the first positioning component 31 cannot be set in the exact middle of the first guide rail 21 and the second guide rail 22. And because the driving force of the end of the second positioning component 32 that is slidably connected to the guide rail close to the first positioning component 31 by the first positioning component 31 is greater than the driving force of the end of the second positioning component 32 that is slidably connected to the guide rail far from the first positioning component 31, resulting in the inability of both ends of the second positioning component 32 to move synchronously. Furthermore, in the first guide rail 21 and the second guide rail 22, the size of the guide rail far from the first positioning component 31 is smaller than the size of the guide rail close to the first positioning component 31, so that the sliding friction between the second positioning component 32 and the guide rail far from the first positioning component 31 is reduced. Furthermore, both ends of the second positioning component 32 can move synchronously, which is ultimately beneficial to improving the accuracy of the movement of the detection piece 4, that is, beneficial to improving the positioning accuracy of the detection piece 4.

[0071] Obviously, the above embodiments are only examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A positioning mechanism, characterized in that, Comprising: A mounting member (1), which is adapted to be arranged on a detection device; A guide rail structure (2), including a first guide rail (21) and a second guide rail (22), the first guide rail (21) and the second guide rail (22) are arranged at intervals on the mounting member (1) and are parallel to each other; A positioning structure (3), including a first positioning component (31) and a second positioning component (32), the first positioning component (31) is arranged on the mounting member (1), the second positioning component (32) is adapted to be connected to a detection piece (4), both ends of the second positioning component (32) are adapted to be slidably connected to the first guide rail (21) and the second guide rail (22) respectively, and the second positioning component (32) is connected to the driving end of the first positioning component (31), so that under the drive of the first positioning component (31), the second positioning component (32) is adapted to drive the detection piece (4) to slide along the extending direction of the first guide rail (21) and the second guide rail (22) to position the detection piece (4); Among the first guide rail (21) and the second guide rail (22), the size of the guide rail far from the first positioning component (31) is smaller than the size of the guide rail close to the first positioning component (31), so as to reduce the friction force between the end of the second positioning component (32) and the guide rail far from the first positioning component (31).

2. The positioning mechanism according to claim 1, characterized in that, The first positioning component (31) includes: A first driving member (311), arranged on the mounting member (1); A first rotating member (312), which is connected to the driving end of the first driving member (311); A first moving member (313), which is threadedly connected to the first rotating member (312), and the first moving member (313) is connected to the second positioning component (32) to serve as the driving end of the first positioning component (31).

3. The positioning mechanism according to claim 2, characterized in that, The first positioning component (31) further includes an adapter, both ends of the adapter are respectively connected to the first moving member (313) and the second positioning component (32), so that the first moving member (313) drives the second positioning component (32) to move.

4. The positioning mechanism according to claim 3, wherein The second positioning component (32) includes a sliding member (321), both ends of the sliding member (321) are slidably connected to the first guide rail (21) and the second guide rail (22) respectively, and the sliding member (321) is also connected to one end of the adapter.

5. The positioning mechanism according to claim 4, wherein The second positioning component (32) further includes: A second driving member (322), arranged on the sliding member (321); A second rotating member, which is connected to the driving end of the second driving member (322); A second moving member, which is threadedly connected to the second rotating member, and the second moving member is adapted to be connected to the detection piece (4), so that under the drive of the driving end of the second driving member (322), the second moving member drives the detection piece (4) to move to position the detection piece (4).

6. The positioning mechanism according to claim 5, wherein The positioning structure (3) further includes a third positioning component (33), and the third positioning component (33) includes: A fixing member (331) which is connected to the second moving member; A transmission unit is provided on the fixing member (331), and the detecting member (4) is provided on the transmission unit to move closer to or away from the mounting member (1) under the drive of the transmission unit.

7. The positioning mechanism according to claim 6, wherein, The transmission unit includes: A third driving member (332) provided 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 provided on the fixing member (331); A conveyor belt (335) is sleeved between the driving wheel (333) and the driven wheel (334), and the detecting member (4) is adapted to be 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 drives the detecting member (4) to move closer to or away from the mounting member (1).

8. The positioning mechanism according to claim 7, characterized in that, The first positioning assembly (31) and the guide rail structure (2) are arranged in parallel, and the first positioning assembly (31), the second positioning assembly (32) and the third positioning assembly (33) are arranged perpendicular to each other in pairs.

9. The positioning mechanism according to claim 8, wherein The first positioning assembly (31) further includes a first fastener (314), and the first fastener (314) is connected to one end of the first rotating member (312) away from the first driving member (311) to limit the deformation of the first rotating member (312); The second positioning assembly (32) further includes a second fastener, and the second fastener is connected to one end of the second rotating member away from the second driving member (322) to limit the deformation of the second rotating member.

10. A detection device, characterized in that, Including the positioning mechanism according to any one of claims 1-9.

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