Turnover device

Abstract

The utility model relates to the technical field of vibration testing, and particularly discloses a turnover device, in which a base can be fixed to a vibration end of a vibration table, and the base is provided with a first hinge seat; the turnover frame is used for supporting the board card, has an initial state and a turnover state, and is provided with a second hinge seat; the moving part is movably restrained on the base in the first direction, can be close to or away from the first hinge seat and is located on the lower side of the second hinge seat; one end of the first connecting assembly is connected to the overturning frame, and the other end is hinged to the moving part; the two ends of the second connecting assembly are hinged to the first hinge base and the second hinge base correspondingly. The power assembly is arranged on the base, the output end of the power assembly is connected with the moving part, and the power assembly can move in the first direction to drive the moving part to be close to or away from the first hinge base so as to drive the overturning frame to overturn between the initial state and the overturning state. According to the arrangement, on one hand, the influence on the test effect is reduced, and on the other hand, the overturning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration testing, in particular to a flipping device. Background Art

[0002] After the board card is assembled, it needs to be performance-tested, and can only enter the market after passing the test. During transportation and machine relocation, the board card is often subject to vibration and impact, resulting in problems such as poor contact between the upper and lower layer connectors of the board card and disconnection of the communication interface. Therefore, before leaving the factory, it needs to be vibration-tested. Since the board card needs to be tested at horizontal and vertical angles, when using the existing vibration platform, the board card needs to be manually flipped between two vibrations, resulting in low vibration test efficiency. At the same time, during the flipping process, the board card needs to be lifted and then put down, which is likely to cause secondary impact on the board card during the placement process, thus affecting the test effect.

[0003] Therefore, there is an urgent need to study a flipping device that can be installed on a vibration table to improve the flipping efficiency of the board card and reduce the impact on the test effect. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a flipping device to improve the flipping efficiency of the board card and reduce the impact on the test effect.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The flipping device includes:

[0007] A base that can be fixed to the vibrating end of the vibration table, and the base is provided with a first hinge seat;

[0008] A flipping frame that is used to support the board card and has an initial state and a flipped state, and the flipping frame is provided with a second hinge seat;

[0009] A moving member that is movably constrained to the base along a first direction and can approach or move away from the first hinge seat, and the moving member is located below the second hinge seat;

[0010] A first connection component, one end of which is connected to the flipping frame and the other end is hinged to the moving member;

[0011] A second connection component, both ends of which are respectively hinged to the first hinge seat and the second hinge seat;

[0012] A power component, which is arranged on the base, and its output end is connected to the moving member and can move along the first direction to drive the moving member to approach or move away from the first hinge seat, so as to drive the flipping frame to flip between the initial state and the flipped state.

[0013] As an alternative technical solution of the flipping device, the first connection component further includes a load-bearing member and a first spherical plain bearing. The load-bearing member is rod-shaped and is arranged on the flipping frame. When the flipping frame is in the initial state, the load-bearing member extends along a first direction. One end of the first spherical plain bearing is connected to the flipping frame through the load-bearing member, and the other end is hinged to the moving member.

[0014] As an alternative technical solution of the flipping device, the second connection component includes a connecting rod and two second spherical plain bearings. The two second spherical plain bearings are respectively fixed to both ends of the connecting rod and are correspondingly hinged to the first hinge seat and the second hinge seat.

[0015] As an alternative technical solution of the flipping device, the flipping frame includes a first mounting plate and a second mounting plate which are perpendicularly connected. When the flipping frame is in the initial state, the first mounting plate is horizontal, and the second mounting plate is vertical and located above the first mounting plate. When the flipping frame is in the flipping state, the second mounting plate is horizontal, and the first mounting plate is vertical and located above the second mounting plate. The first connection component and the second connection component are both arranged on the first mounting plate.

[0016] As an alternative technical solution of the flipping device, the flipping frame includes a first mounting plate and a second mounting plate which are connected at an angle. The base includes a fixed seat and fixed brackets. There are two fixed brackets, and the two fixed brackets are arranged at intervals along the first direction. When the flipping frame is in the initial state, one of the two fixed brackets far from the moving member can support the first mounting plate. When the flipping frame is in the flipping state, the other of the two fixed brackets far from the moving member can support the second mounting plate.

[0017] As an alternative technical solution of the flipping device, the flipping device further includes a locking member. The locking member is installed on both fixed brackets. The first mounting plate is provided with a first locking portion. When the flipping frame is in the initial state, the locking member cooperates with the first locking portion to lock or unlock the flipping frame and the corresponding fixed bracket. The second mounting plate is provided with a second locking portion. When the flipping frame is in the flipping state, the locking member cooperates with the second locking portion to lock or unlock the flipping frame and the corresponding fixed bracket.

[0018] As an alternative technical solution of the flipping device, there are two moving members, and the two moving members are arranged at intervals along a second direction. The two moving members are connected by a bridging member.

[0019] The power assembly includes:

[0020] A lead screw, which extends along a first direction and is rotatably constrained about its own axis to the base;

[0021] A drive nut, which is in threaded engagement with the lead screw and is drivingly connected to the bridging member to drive the bridging member to reciprocate along the first direction;

[0022] A drive member, which is provided at one end of the lead screw and can drive the lead screw to rotate about its own axis.

[0023] As an alternative technical solution of a flipping device, the flipping device further includes a fixing frame for mounting a board card, and the fixing frame is detachably connected to the flipping frame.

[0024] As an alternative technical solution of a flipping device, the fixing frame includes a frame body, and at least one corresponding card slot extending along a second direction is provided on each of two opposite inner side walls of the frame body, and both sides of the board card can be respectively inserted into the two corresponding card slots.

[0025] As an alternative technical solution of a flipping device, the end of the card slot along the second direction has an end opening for inserting the board card and entering the card slot, and the fixing frame further includes a limiting member, and the limiting member is detachably connected to the frame body to block the end opening of the card slot.

[0026] The beneficial effects of the present utility model are as follows:

[0027] The present utility model provides a flipping device, which includes a base, a moving member slidably disposed on the base along a first direction, one end of a first connection assembly is connected to the flipping frame, and the other end is hinged to the moving member. A second connection assembly is connected between a second hinge seat on the flipping frame and a first hinge seat on the base. The output end of the power assembly is connected to the moving member and can drive the moving member to approach or move away from the first hinge seat, so as to drive the flipping frame to flip between an initial state and a flipped state, improving the flipping efficiency; at the same time, during the flipping process, the height of the flipping frame remains unchanged, and there is no drop after flipping, avoiding secondary impact on the internal board card and helping to reduce the impact on the test effect. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of the flipping device at a first angle in an embodiment of the present utility model;

[0029] Figure 2 is Figure 1 an enlarged view of part A in

[0030] Figure 3 is Figure 1 an enlarged view of part B in

[0031] Figure 4This is a schematic diagram of the cooperation structure between the lead screw and the drive nut in the embodiment of the present utility model.

[0032] In the figure:

[0033] X, the first direction; Y, the second direction;

[0034] 100, base; 110, first hinge seat; 120, slide rail; 130, slider; 140, buffer; 141, buffer bracket; 150, limit block; 101, fixed seat; 102, fixed bracket;

[0035] 200, flip frame; 210, first mounting plate; 211, second hinge seat; 220, second mounting plate;

[0036] 300, moving part; 310, third hinge seat;

[0037] 400, first connection component; 410, load-bearing part; 420, first spherical plain bearing;

[0038] 500, second connection component; 510, connecting rod; 520, second spherical plain bearing;

[0039] 600, power component; 610, bridging part; 620, lead screw; 630, drive nut; 640, drive part; 650, support seat; 660, input shaft; 670, deep groove ball bearing; 680, coupling;

[0040] 700, locking part;

[0041] 800, fixed frame; 810, frame body; 811, card slot; 820, limiting part. Detailed implementation manner

[0042] Next, the technical solutions of the present utility model will be described clearly and completely 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.

[0043] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It 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. Therefore, it 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 understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0044] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected" and "coupled" 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 circumstances.

[0045] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and cannot be construed as a limitation to the present utility model.

[0046] As Figures 1 to 4As shown in the figure, this embodiment provides a flipping device to improve the flipping efficiency of the board card, avoid secondary impact on the board card during the flipping process, improve the safety of the board card, and reduce the impact on the test effect. The flipping device includes a base 100, a flipping frame 200, a moving member 300, a first connection assembly 400, a second connection assembly 500, and a power assembly 600. Among them, the base 100 can be fixed to the vibrating end of the vibrating table, and the base 100 is provided with a first hinge seat 110; the flipping frame 200 is used to support the board card, and the flipping frame 200 has an initial state and a flipping state; the moving member 300 is movably constrained to the base 100 along the first direction X and can approach or move away from the first hinge seat 110. One end of the first connection assembly 400 is connected to the flipping frame 200, and the other end is hinged to the moving member 300; both ends of the second connection assembly 500 are respectively hinged to the first hinge seat 110 and a second hinge seat 211 on the flipping frame 200; the moving member 300 is located below the second hinge seat 211; the power assembly 600 is arranged on the base 100, and its output end is connected to the moving member 300 and can move along the first direction X to drive the moving member 300 to approach or move away from the first hinge seat 110, so as to drive the flipping frame 200 to flip between the initial state and the flipping state.

[0047] Since the moving member 300 is located below the second hinge seat 211, when the moving member 300 approaches or moves away from the first hinge seat 110, under the action of the second connection assembly 500, the second hinge seat 211 of the flipping frame 200 can be supported upward. Since the moving member 300 does not rise, the position where the flipping frame 200 is connected to the first connection assembly 400 does not rise, so that one end of the flipping frame 200 rises and the other end translates, and further the flipping frame 200 flips around the hinge axis at the hinge joint of the moving member 300 and the first connection assembly 400 while moving; at the same time, during the flipping process, the height of the flipping frame 200 is almost unchanged, and the flipping frame 200 is always supported by the first connection assembly 400, and there is no fall after flipping, avoiding secondary impact on the internal board card and helping to reduce the impact on the test effect; finally, under the driving action of the power assembly 600, the flipping frame 200 is flipped between the initial state and the flipping state, improving the flipping efficiency.

[0048] Combined with Figure 2As shown, in some embodiments, the first connection component 400 further includes a load-bearing member 410 and a first spherical plain bearing 420. The load-bearing member 410 is rod-shaped and is disposed on the turning frame 200. When the turning frame 200 is in the initial state, the load-bearing member 410 extends along the first direction X. One end of the first spherical plain bearing 420 is connected to the turning frame 200 through the load-bearing member 410, and the other end is hinged to the moving member 300. This setting enables the load-bearing member 410 to disperse the supporting force of the first spherical plain bearing 420 on the turning frame 200, avoiding local deformation of the turning frame 200 after being stressed. Additionally, during the assembly process, the load-bearing member 410 can be fixedly connected to the turning frame 200, and the first spherical plain bearing 420 can be hinged to the moving member 300, making the rotation between the first connection component 400 and the moving member 300 smoother.

[0049] To simplify the structure of the moving member 300, a third hinge seat 310 is installed on the moving member 300. The first spherical plain bearing 420 is connected to the moving member 300 through the third hinge seat 310, making the connection process more convenient. Specifically, during installation, after the third hinge seat 310 and the first spherical plain bearing 420 are hinged, the third hinge seat 310 can be installed on the moving member 300. Since the bottom of the third hinge seat 310 has a flat surface that can be stably placed on the top plane of the moving member 300, the convenience and safety of assembly are improved.

[0050] In some embodiments, the second connection component 500 includes a connecting rod 510 and two second spherical plain bearings 520. The two second spherical plain bearings 520 are respectively fixedly connected to both ends of the connecting rod 510 and are correspondingly hinged to the first hinge seat 110 and the second hinge seat 211. The setting of the spherical plain bearings makes the rotation between the second connection component 500 and the first hinge seat 110 as well as the second hinge seat 211 smoother, and the standardized components are more convenient for assembly. Among them, the spherical plain bearings can adopt the structural settings in the prior art.

[0051] In some embodiments, the base 100 is provided with a slide rail 120 extending along the first direction X. A slider 130 is slidably engaged with the slide rail 120, and the moving member 300 is fixed to the slider 130. Two limit blocks 150 are spaced along the first direction X on the base 100 to limit the two extreme positions of the moving member 300. To avoid hard collisions affecting the board card, in some embodiments, two buffer brackets 141 are spaced along the first direction X on the base 100, and a buffer member 140 is installed on the buffer brackets 141 to provide buffering for the moving member 300. Among them, the buffer member 140 is a hydraulic buffer.

[0052] Combined with Figure 1As shown, the flipping frame 200 includes a first mounting plate 210 and a second mounting plate 220 that are perpendicularly connected to each other. When the flipping frame 200 is in the initial state, the first mounting plate 210 is horizontal, and the second mounting plate 220 is vertical and located above the first mounting plate 210. When the flipping frame 200 is in the flipped state, the second mounting plate 220 is horizontal, and the first mounting plate 210 is vertical and located above the second mounting plate 220. Both the first connection component 400 and the second connection component 500 are disposed on the first mounting plate 210. With the above structure, when the flipping frame 200 is in the initial state, the first mounting plate 210 is located below the board card and is used to bear the weight of the board card. When the flipping frame 200 is in the flipped state, the second mounting plate 220 is located below the board card and is used to bear the weight of the board card, enabling the flipping frame 200 to flip 90°, so as to vibrate the board card at horizontal and vertical angles, improving the comprehensiveness of the test, and as much as possible simulating the vibration conditions of the board card during transportation and machine transfer in two states respectively, as well as simulating the working conditions of the board card during the flipping process. At the same time, the structure of the flipping frame 200 is simple, with only two plate-like structures, and it is convenient to place the board card on the first mounting plate 210 or the second mounting plate 220 of the flipping frame 200 whether the flipping frame 200 is in the initial state or the flipped state.

[0053] Combined with Figure 1 and Figure 4 As shown, to facilitate the stable support of the flipping frame 200 and ensure the accuracy of the vibration test, in some embodiments, the flipping frame 200 includes a first mounting plate 210 and a second mounting plate 220 that are connected at an angle to each other. The base 100 includes a fixed seat 101 and fixed brackets 102. There are two fixed brackets 102, and the two fixed brackets 102 are arranged at intervals along the first direction X. When the flipping frame 200 is in the initial state, one of the two fixed brackets 102 that is far from the moving member 300 can support the first mounting plate 210. When the flipping frame 200 is in the flipped state, the other of the two fixed brackets 102 that is far from the moving member 300 can support the second mounting plate 220. Among them, the first mounting plate 210 and the second mounting plate 220 are perpendicularly arranged. This setting enables the flipping frame 200 to be supported by different fixed brackets 102 respectively in the initial state or the flipped state, that is, both ends of the flipping frame 200 in the initial state are supported by the moving member 300 and a fixed bracket 102 respectively, and both ends of the flipping frame 200 in the flipped state are supported by the moving member 300 and the other fixed bracket 102 respectively, improving the stability of the flipping frame 200 in these two states and preventing the flipping frame 200 from being in a cantilever state, which is thus beneficial to ensuring the vibration effect on the board card.

[0054] Further, the flipping device further includes a locking member 700. The two fixing brackets 102 are both installed with the locking member 700. The first mounting plate 210 is provided with a first locking portion. When the flipping frame 200 is in the initial state, the locking member 700 cooperates with the first locking portion to lock or unlock the flipping frame 200 and the corresponding fixing bracket 102. The second mounting plate 220 is provided with a second locking portion. When the flipping frame 200 is in the flipped state, the locking member 700 cooperates with the second locking portion to lock or unlock the flipping frame 200 and the corresponding fixing bracket 102. The setting of the locking member 700 enables the flipping frame 200 in the initial state or the flipped state to be locked with the fixing bracket 102, thereby preventing the flipping frame 200 from jumping relative to the fixing bracket 102 during the vibration process and ensuring the vibration test effect of the board card. Wherein, the locking member 700 can be a spring buckle, and both the first locking portion and the second locking portion are hook-shaped mating members for the spring buckle to hook.

[0055] To ensure the stability of the flipping process of the flipping frame 200, in some embodiments, there are two moving members 300. The two moving members 300 are arranged at intervals along the second direction Y, and are connected by a bridging member 610 between the two moving members 300. The power assembly 600 includes a lead screw 620, a driving nut 630, and a driving member 640. Among them, the lead screw 620 extends along the first direction X and is rotatably constrained to the base 100 about its own axis. The driving nut 630 is in threaded cooperation with the lead screw 620 and is drivingly connected to the bridging member 610 to drive the bridging member 610 to reciprocate along the first direction X. The driving member 640 is arranged at one end of the lead screw 620 and can drive the lead screw 620 to rotate about its own axis. The above setting enables the flipping frame 200 to be supported by the two moving members 300 in each state, with higher stability. In addition, one power assembly 600 drives the two moving members 300 to move simultaneously, saving costs and making the flipping process of the flipping frame 200 more stable.

[0056] Combined Figure 2 and Figure 3 As shown, in some embodiments, the driving member 640 includes a rotating handwheel. The rotating handwheel is arranged at one end of the lead screw 620 and is arranged to be able to rotate when manually toggled to drive the lead screw 620 to rotate about its own axis.

[0057] To improve the convenience of installation, a support seat 650 is provided on the base 100. The input shaft 660 is rotatably arranged on the support seat 650 through a deep groove ball bearing 670. The rotating handwheel is fixedly connected to one end of the input shaft 660. The lead screw 620 is also rotatably arranged on the support seat 650 through a deep groove ball bearing 670, and the lead screw 620 and the other end of the input shaft 660 are connected by a coupling 680.

[0058] For the convenience of implementing the installation of the board card, in some embodiments, the flipping device further includes a fixing frame 800 for installing the board card, and the fixing frame 800 is detachably connected to the flipping frame 200. First, install the board card in the fixing frame 800, and then fix the fixing frame 800 on the flipping frame 200, thereby realizing the loading of the board card and improving the loading efficiency of the board card; at the same time, when the board card models are different, only the fixing frame 800 needs to be replaced, saving costs.

[0059] Combined with Figure 2 As shown, to increase the installation quantity of the board card, in some embodiments, the fixing frame 800 includes a frame body 810, and at least one corresponding card slot 811 extending along the second direction Y is provided on each of the two opposite inner side walls of the frame body 810. Both sides of the board card can be respectively inserted into the two corresponding card slots 811. This setting enables the fixing frame 800 to install at least two board cards, and can be installed by means of insertion, which is conducive to improving the installation efficiency.

[0060] During the vibration test, to prevent the board card affected by vibration from disengaging from the card slot 811, in some embodiments, the end of the card slot 811 along the second direction Y has an end opening for the board card to be inserted and enter the card slot 811. The fixing frame 800 further includes a limiting member 820, and the limiting member 820 is detachably connected to the frame body 810 to block the end opening of the card slot 811. This setting can block the board card inside the card slot 811, prevent the board card affected by vibration from moving out of the card slot 811, and improve the safety of the test. Among them, the limiting member 820 can be connected to the frame body 810 by means of clamping or screwing to improve the reliability of the connection.

[0061] For the convenience of fixing the flipping device on the vibration table, the fixing seat 101 is provided with a through hole with a diameter of 8.5 mm, and the fixing screw passes through the through hole and is screwed into the fixing screw hole of the vibration table. Since the flipping device will be subjected to vibrations of 1 Hz - 600 Hz, to ensure the firmness of each connection, thread sealant is applied at the positions connected by screws to ensure the reliability of the connection.

[0062] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. 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. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. Inverting device, characterized in that, Comprising: A base (100) that can be fixed to the vibrating end of a vibrating table, and the base (100) is provided with a first hinge seat (110); A turning frame (200) that is used to support a circuit board card and has an initial state and a turning state, and the turning frame (200) is provided with a second hinge seat (211); A moving member (300) that is movably constrained to the base (100) along a first direction (X) and can approach or move away from the first hinge seat (110), and the moving member (300) is located below the second hinge seat (211); A first connection assembly (400) whose one end is connected to the turning frame (200) and the other end is hinged to the moving member (300); A second connection assembly (500) whose two ends are respectively hinged to the first hinge seat (110) and the second hinge seat (211); A power assembly (600) that is provided on the base (100), and its output end is connected to the moving member (300) and can move along the first direction (X) to drive the moving member (300) to approach or move away from the first hinge seat (110), so as to drive the turning frame (200) to turn between the initial state and the turning state.

2. The flipping device according to claim 1, wherein The first connection assembly (400) further includes a load-bearing member (420) and a first spherical plain bearing (410). The load-bearing member (420) is rod-shaped and is provided on the turning frame (200). When the turning frame (200) is in the initial state, the load-bearing member (420) extends along the first direction (X). One end of the first spherical plain bearing (410) is connected to the turning frame (200) through the load-bearing member (420), and the other end is hinged to the moving member (300).

3. The flipping device according to claim 1, characterized in that, The second connection assembly (500) includes a connecting rod (510) and two second spherical plain bearings (520). The two second spherical plain bearings (520) are respectively fixed to both ends of the connecting rod (510) and are correspondingly hinged to the first hinge seat (110) and the second hinge seat (211).

4. The turnover device according to claim 1, characterized in that, The turning frame (200) includes a first mounting plate (210) and a second mounting plate (220) that are perpendicularly connected to each other. When the turning frame (200) is in the initial state, the first mounting plate (210) is horizontal, and the second mounting plate (220) is vertical and located above the first mounting plate (210). When the turning frame (200) is in the turning state, the second mounting plate (220) is horizontal, and the first mounting plate (210) is vertical and located above the second mounting plate (220); both the first connection assembly (400) and the second connection assembly (500) are arranged on the first mounting plate (210).

5. The turnover device according to claim 1, characterized in that The turnover frame (200) includes a first mounting plate (210) and a second mounting plate (220) connected at an angle to each other. The base (100) includes a fixed seat (101) and fixed brackets (102). There are two fixed brackets (102), and the two fixed brackets (102) are arranged at intervals along the first direction (X). When the turnover frame (200) is in the initial state, one of the two fixed brackets (102) far from the moving member (300) can support the first mounting plate (210); when the turnover frame (200) is in the turnover state, the other of the two fixed brackets (102) far from the moving member (300) can support the second mounting plate (220).

6. The turnover device according to claim 5, characterized in that, The turnover device further includes a locking member (700). The locking member (700) is installed on both of the two fixed brackets (102). The first mounting plate (210) is provided with a first locking portion. When the turnover frame (200) is in the initial state, the locking member (700) cooperates with the first locking portion to lock or unlock the turnover frame (200) and the corresponding fixed bracket (102); the second mounting plate (220) is provided with a second locking portion. When the turnover frame (200) is in the turnover state, the locking member (700) cooperates with the second locking portion to lock or unlock the turnover frame (200) and the corresponding fixed bracket (102).

7. The turnover device according to claim 1, characterized in that, There are two moving members (300), and the two moving members (300) are arranged at intervals along the second direction (Y). The two moving members (300) are connected by a bridging member (610). The power assembly (600) includes: A lead screw (620) extending along the first direction (X) and rotatably constrained to the base (100) about its own axis. A drive nut (630) threadedly engaged with the lead screw (620) and drivingly connected to the bridging member (610) to drive the bridging member (610) to reciprocate along the first direction (X). A driving member (640) provided at one end of the lead screw (620) and capable of driving the lead screw (620) to rotate about its own axis.

8. The turnover device according to any one of claims 1-7, characterized in that, The turnover device further includes a fixed frame (800) for mounting a board card. The fixed frame (800) is detachably connected to the turnover frame (200).

9. The turnover device according to claim 8, characterized in that, The fixed frame (800) includes a frame body (810). At least one corresponding slot (811) extending along the second direction (Y) is provided on each of the two opposite inner side walls of the frame body (810). Both sides of the board card can be respectively inserted into the two corresponding slots (811).

10. The turnover device according to claim 9, characterized in that The end of the slot (811) along the second direction (Y) has an end opening for the board card to be inserted and enter the slot (811). The fixed frame (800) further includes a limiting member (820). The limiting member (820) is detachably connected to the frame body (810) to block the end opening of the slot (811).

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