A notebook computer keyboard scissor foot production displacement automatic precision positioning device

Abstract

The utility model belongs to keyboard production technical field, specifically speaking is a notebook computer keyboard scissors foot production displacement automatic accurate positioning device, including slide frame, three -dimensional movement subassembly is equipped with in the middle part of slide frame, slide frame is equipped with adsorption installation subassembly through three -dimensional movement subassembly, slide frame is equipped with tracheal guide subassembly through three -dimensional movement subassembly, slide frame bottom is equipped with support subassembly, this step sets up through three -dimensional movement subassembly drive adsorption installation subassembly and moves scissors foot spare to keyboard installation position, constitutes notebook computer keyboard scissors foot production displacement accurate positioning structure, has realized the function of accurate installation of scissors foot spare, solved the problem of insufficient accuracy when installing and positioning scissors foot, improved the quality of notebook computer keyboard production.

Description

Technical Field

[0001] This utility model belongs to the field of keyboard manufacturing technology, specifically an automatic and precise positioning device for the displacement of the scissor-switch mechanism in the production of a laptop keyboard. Background Technology

[0002] The scissor-switch keyboard design is a common keyboard structure for laptops. Due to its stability, low key travel, and thinness, it is widely used in thin and light laptops.

[0003] The keyboard scissor-switch mechanism consists of two intersecting plastic supports and silicone domes. When the key is pressed down, the supports retract, and when it rebounds, the silicone domes provide feedback force. The scissor structure makes the force distribution on the key more even, reducing key jamming. It also has a shorter key travel, making it suitable for fast typing. During keyboard production, the scissor-switch mechanism needs to be installed on the keyboard assembly.

[0004] In existing keyboard scissor-switch pin manufacturing technology, the scissor pins need to be placed into a conversion board before assembly, which results in insufficient precision in the installation of the scissor pins, thus affecting the quality of keyboard production.

[0005] Therefore, this utility model provides an automatic and precise positioning device for the displacement of the scissor-switch feet in the production of a laptop keyboard. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A notebook computer keyboard scissor-switch feet production displacement automatic precision positioning device includes a sliding frame; a three-dimensional moving component is provided in the middle of the sliding frame; an adsorption mounting component is provided on the sliding frame through the three-dimensional moving component; an air tube guide component is provided on the sliding frame through the three-dimensional moving component; and a support component is provided at the bottom of the sliding frame. This step, through the three-dimensional moving component driving the adsorption mounting component, moves the scissor-switch feet part to the keyboard installation position, forming a notebook computer keyboard scissor-switch feet production displacement precision positioning structure. This achieves the function of precisely installing the scissor-switch feet part, solves the problem of insufficient precision in scissor-switch feet installation positioning, and improves the quality of notebook computer keyboard production.

[0008] Preferably, the three-dimensional moving component includes a first servo motor, a first lead screw, a first slider, a first slide rail, a second servo motor, a second lead screw, a second slide rail, a third servo motor, a third lead screw, and a second slider; the first servo motor is fixedly connected to the side wall of the sliding frame; the first slider is slidably connected to the inner side of the sliding frame; the first lead screw is fixedly connected to the transmission end of the first servo motor; the first lead screw and the first slider are fitted with a lead screw and nut pair; the first slide rail is fixedly connected to the top of the first slider; the second servo motor is fixedly connected to the end of the first slide rail; the second lead screw is fixedly connected to the transmission end of the second servo motor; the second slide rail is slidably connected to the second servo motor. The second slide rail has an inner sidewall; the second slide rail is fitted with a second lead screw and nut pair; the third servo motor is fixedly connected to the top of the second slide rail; the third lead screw is fixedly connected to the transmission end of the third servo motor; the second slider is slidably connected inside the second slide rail; the third lead screw is fitted with a second slider and lead screw and nut pair; the second slide rail is connected to the adsorption mounting assembly through the second slider; this step, by setting the adsorption mounting assembly to move in three dimensions inside the sliding frame, forms a scissor foot displacement structure, realizing the function of moving the adsorption mounting assembly and the scissor foot, improving the convenience of scissor foot part displacement, and improving the accuracy of scissor foot positioning and installation.

[0009] Preferably, the adsorption mounting assembly includes a transfer rod, a suction pipe, an adsorption plate, and a vacuum nozzle; the transfer rod is fixedly connected to the middle of the second slider; the suction pipe is fixedly connected to the top of the transfer rod; the adsorption plate is fixedly connected to the bottom of the transfer rod; the vacuum nozzle is fixedly connected to the bottom of the adsorption plate; multiple sets of vacuum nozzles are provided at the bottom of the adsorption plate and are evenly distributed at the bottom of the adsorption plate; air channels are provided inside the adsorption plate and the transfer rod; the vacuum nozzle communicates with the suction pipe through the air channels; a stabilizing component is provided on the outer wall of the transfer rod; this step, through the setting of adsorbing and fixing the scissor-foot parts with vacuum nozzles, forms a scissor-foot adsorption mounting structure, realizing the function of adsorbing and fixing the scissor-foot parts, solving the stability problem when the scissor-foot parts move, and reducing the convenience of installing the scissor-foot parts.

[0010] Preferably, the air tube guide assembly includes a wire, a sliding ring, and ball bearings; one end of the wire is fixedly connected to the top of the first slide rail; the sliding ring is fixedly connected to the other end of the wire; the ball bearings are tactilely connected to the inner wall of the sliding ring; multiple sets of ball bearings are arranged on the inner wall of the sliding ring and are evenly distributed on the inner wall of the sliding ring; the air extraction tube slides in conjunction with the sliding ring; this step converts the static friction between the air extraction tube and the sliding ring into rolling friction, forming an air extraction tube guide support structure, realizing the function of supporting the air extraction tube, solving the problem of wear when the air extraction tube moves, and improving the adaptability of the air extraction tube support.

[0011] Preferably, the stabilizing component includes a guide frame; the guide frame is fixedly connected to the bottom of the second slide rail; the guide frame is slidably connected to the outer wall of the transfer rod; this step, through the setting of the guide frame to support the outer wall of the transfer rod, forms a sliding stabilizing structure for the transfer rod, realizing the function of supporting and stabilizing the transfer rod when it slides, and improving the stability of the transfer rod during operation.

[0012] Preferably, the support assembly includes a bracket and a reinforcing plate; the bracket is fixedly connected to the bottom of the sliding frame; a pair of brackets are provided at the bottom of the sliding frame and are symmetrically arranged; the reinforcing plate is fixedly connected to the side wall of the bracket away from the sliding frame; this step, by supporting the sliding frame with brackets and reinforcing plates, improves the stability of the sliding frame during operation, reduces the shaking of the sliding frame during operation, and improves the accuracy of keyboard production and installation.

[0013] Preferably, the bracket is fixedly connected with a pad; the pad is provided at the bottom of both brackets; when the bracket is connected to the workbench, the pad will buffer the vibration transmitted by the workbench, reducing the impact of vibration on the sliding frame on the accuracy of keyboard production and installation.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The present invention relates to an automatic and precise positioning device for the production displacement of scissor-switch feet on a laptop keyboard. This device uses a three-dimensional moving component to drive an adsorption and installation component to move the scissor-switch feet to the keyboard mounting position, forming a precise positioning structure for the production displacement of scissor-switch feet on a laptop keyboard. This achieves the function of precisely installing the scissor-switch feet, solving the problem of insufficient precision in scissor-switch foot installation and positioning, and improving the quality of laptop keyboard production.

[0016] 2. The automatic and precise positioning device for the production displacement of the scissor-switch feet of a laptop keyboard, as described in this utility model, forms a scissor-switch foot displacement structure by driving the adsorption mounting component to move in three dimensions inside the sliding frame. This realizes the function of driving the adsorption mounting component and the scissor feet to move, improving the convenience of scissor-switch foot component displacement and improving the accuracy of scissor-switch foot positioning and installation. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the second slider cooperating with the sliding frame in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the adsorption plate and the second slider in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the sliding ring and the suction pipe in this utility model.

[0022] In the diagram: 1. Sliding frame; 11. First servo motor; 12. First lead screw; 13. First slider; 14. First slide rail; 15. Second servo motor; 16. Second lead screw; 17. Second slide rail; 18. Third servo motor; 19. Third lead screw; 101. Second slider; 2. Transfer rod; 21. Evacuation pipe; 22. Adsorption plate; 23. Vacuum nozzle; 3. Wire; 31. Sliding ring; 32. Ball bearing; 4. Guide frame; 5. Support; 51. Reinforcing plate; 6. Pad. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 4 As shown in the figure, an automatic and precise positioning device for the displacement of scissor-switch feet in the production of a laptop keyboard according to an embodiment of the present invention includes a sliding frame 1; a three-dimensional moving component is provided in the middle of the sliding frame 1; an adsorption mounting component is provided on the sliding frame 1 through the three-dimensional moving component; an air tube guide component is provided on the sliding frame 1 through the three-dimensional moving component; and a support component is provided at the bottom of the sliding frame 1. In operation, the device is installed on the keyboard production table through the support component, and the scissor-switch feet are placed at the bottom of the sliding frame 1. The adsorption mounting component is moved by the three-dimensional moving component, and moves to above the scissor-switch feet to adsorb and fix them. The three-dimensional moving component moves the adsorption mounting component and the scissor-switch feet to the keyboard installation position. The adsorption mounting component releases pressure, and the scissor-switch feet fall onto the keyboard, completing the precise positioning and installation of the scissor-switch feet. The air tube guide component guides the air tube on the adsorption mounting component. This step, in which the three-dimensional moving component moves the adsorption mounting component to the keyboard installation position, constitutes a precise positioning structure for the displacement of scissor-switch feet in the production of a laptop keyboard, realizing the function of precise installation of scissor-switch feet, solving the problem of insufficient precision in the positioning of scissor-switch feet, and improving the quality of laptop keyboard production.

[0025] like Figures 1 to 3As shown, the three-dimensional moving assembly includes a first servo motor 11, a first lead screw 12, a first slider 13, a first slide rail 14, a second servo motor 15, a second lead screw 16, a second slide rail 17, a third servo motor 18, a third lead screw 19, and a second slider 101. The first servo motor 11 is fixedly connected to the side wall of the sliding frame 1; the first slider 13 is slidably connected to the inner side of the sliding frame 1; the first lead screw 12 is fixedly connected to the transmission end of the first servo motor 11; the first lead screw 12 and the first slider 13 are in a lead screw-nut pair engagement; the first slide rail 14 is fixedly connected to the top of the first slider 13; the second servo motor 15 is fixedly connected to the end of the first slide rail 14; the second lead screw 16 is fixedly connected to the transmission end of the second servo motor 15; the second slide rail 17 is slidably connected to the inner side wall of the first slide rail 14; the second slide rail 17 and the second lead screw 16 are in a lead screw-nut pair engagement; the third servo motor 18 is fixedly connected to the top of the second slide rail 17; the third lead screw 19 is fixedly connected to the transmission end of the third servo motor 18; the second slider 101 is slidably connected inside the second slide rail 17; the third… The lead screw 19 engages with the lead screw nut pair of the second slider 101; the second slide rail 17 is connected to the adsorption mounting assembly via the second slider 101; during operation, when the adsorption mounting assembly needs to be moved, the first servo motor 11, the second servo motor 15, and the third servo motor 18 are activated, respectively driving the first lead screw 12, the second lead screw 16, and the third lead screw 19 to rotate. When the first lead screw 12 rotates, it drives the first slide rail 14 and the first slider 13 to slide inside the sliding frame 1. When the second lead screw 16 rotates, it drives the second slide rail 17 to slide on the side wall of the first slide rail 14. When the third lead screw 19 rotates, it drives the second slider 101 and the adsorption mounting assembly to slide on the side wall of the second slide rail 17. The second slider 101 drives the adsorption mounting assembly to perform X-axis, Y-axis, and Z-axis displacements inside the sliding frame 1. This step, by setting the adsorption mounting assembly to perform three-dimensional positional movement inside the sliding frame 1, forms a scissor-foot displacement structure, realizing the function of driving the adsorption mounting assembly and the scissor feet to perform displacement, improving the convenience of scissor-foot part displacement, and improving the accuracy of scissor-foot positioning and installation.

[0026] like Figure 2 and Figure 3As shown, the adsorption assembly includes a transfer rod 2, a suction pipe 21, an adsorption plate 22, and a vacuum nozzle 23. The transfer rod 2 is fixedly connected to the middle of the second slider 101; the suction pipe 21 is fixedly connected to the top of the transfer rod 2; the adsorption plate 22 is fixedly connected to the bottom of the transfer rod 2; the vacuum nozzle 23 is fixedly connected to the bottom of the adsorption plate 22; multiple sets of vacuum nozzles 23 are evenly distributed at the bottom of the adsorption plate 22; air channels are provided inside the adsorption plate 22 and the transfer rod 2; the vacuum nozzle 23 communicates with the suction pipe 21 through the air channels; a stabilizing component is provided on the outer wall of the transfer rod 2; during operation, the suction pipe 21 is connected to a vacuum pump, and when the second slider 101 drives the transfer rod 2... After the adsorption plate 22 and vacuum nozzle 23 move above the scissor-foot component, the vacuum nozzle 23 contacts the scissor-foot component. The suction pipe 21 evacuates air through the transfer rod 2, adsorption plate 22, and vacuum nozzle 23, adsorbing and fixing the scissor-foot component to the bottom of the adsorption plate 22. The adsorption plate 22 and vacuum nozzle 23 then move the scissor-foot component onto the keyboard. The suction pipe 21 releases suction, and the scissor-foot component lands on the keyboard mounting position. This step, through the setting of adsorbing and fixing the scissor-foot component with the vacuum nozzle 23, forms a scissor-foot adsorption and mounting structure, realizing the function of adsorbing and fixing the scissor-foot component, solving the stability problem when the scissor-foot component moves, and reducing the convenience of installing the scissor-foot component.

[0027] like Figure 1 and Figure 4 As shown, the air tube guide assembly includes a wire 3, a sliding ring 31, and ball bearings 32. One end of the wire 3 is fixedly connected to the top of the first slide rail 14. The sliding ring 31 is fixedly connected to the other end of the wire 3. The ball bearings 32 are rolledly connected to the inner wall of the sliding ring 31. Multiple sets of ball bearings 32 are arranged on the inner wall of the sliding ring 31 and are evenly distributed on the inner wall of the sliding ring 31. The suction tube 21 slides in conjunction with the sliding ring 31. During operation, the suction tube 21 passes through the sliding ring 31. The wire 3 is a bendable structure. When the suction tube 21 slides in the middle of the sliding ring 31, the ball bearings 32 convert the static friction between the suction tube 21 and the inner wall of the sliding ring 31 into rolling friction. This step, by converting the static friction between the suction tube 21 and the sliding ring 31 into rolling friction, forms a guide support structure for the suction tube 21, realizing the function of supporting the suction tube 21, solving the problem of wear when the suction tube 21 moves, and improving the adaptability of supporting the suction tube 21.

[0028] like Figure 3 As shown, the stabilizing component includes a guide frame 4; the guide frame 4 is fixedly connected to the bottom of the second slide rail 17; the guide frame 4 is slidably connected to the outer wall of the transfer rod 2; during operation, when the second slider 101 drives the transfer rod 2 to move up and down, the transfer rod 2 slides on the outer wall of the guide frame 4; this step, through the setting of the guide frame 4 to support the outer wall of the transfer rod 2, forms a sliding stabilizing structure for the transfer rod 2, realizing the function of supporting and stabilizing the transfer rod 2 when it slides, and improving the stability of the transfer rod 2 during operation.

[0029] like Figure 1 As shown, the support assembly includes a bracket 5 and a reinforcing plate 51; the bracket 5 is fixedly connected to the bottom of the sliding frame 1; a pair of brackets 5 are provided at the bottom of the sliding frame 1 and are arranged symmetrically; the reinforcing plate 51 is fixedly connected to the side wall of the bracket 5 away from the sliding frame 1; during operation, the bracket 5 is fixed to the workbench by fixing bolts, and the reinforcing plate 51 improves the structural strength of the bracket 5; this step, by supporting the sliding frame 1 with the bracket 5 and the reinforcing plate 51, improves the stability of the sliding frame 1 during operation, reduces the shaking of the sliding frame 1 during operation, and improves the accuracy of keyboard production and installation.

[0030] like Figure 1 As shown, the bracket 5 is fixedly connected to the pad 6; the pad 6 is set at the bottom of both brackets 5; during operation, when the bracket 5 is connected to the worktable, the pad 6 buffers the vibration transmitted by the worktable, reducing the vibration of the sliding frame 1 and affecting the accuracy of keyboard production and installation.

[0031] During operation, the device is mounted on the keyboard production table via a support assembly. The scissor-foot component is placed at the bottom of the sliding frame 1. The three-dimensional moving assembly moves the adsorption mounting assembly, which then moves above the scissor-foot component and adsorbs and fixes it in place. The three-dimensional moving assembly then moves the adsorption mounting assembly and the scissor-foot component to the keyboard mounting position. The adsorption mounting assembly releases pressure, and the scissor-foot component falls onto the keyboard, completing the precise positioning and installation of the scissor-foot component. The air tube guide assembly guides the air tube on the adsorption mounting assembly. When the adsorption mounting assembly needs to be moved, the first servo motor 11, the second servo motor 15, and the third servo motor 18 are activated, driving the first lead screw 12, the second lead screw 16, and the third lead screw 19 to rotate, respectively. When the first lead screw 12 rotates, it causes the first slide rail 14 and the first slider 13 to slide inside the sliding frame 1. The second lead screw 16 rotates, causing the second slide rail 17 to slide on the side wall of the first slide rail 14. The third lead screw 19 rotates, causing the second slider 101 and the adsorption mounting assembly to slide on the side wall of the second slide rail 17. The second slider 101 then moves the adsorption mounting assembly inside the sliding frame 1. Displacement along the X, Y, and Z axes; the suction pipe 21 is connected to an external vacuum pump. When the second slider 101 moves the transfer rod 2, the adsorption plate 22, and the vacuum nozzle 23 above the scissor-foot part, the vacuum nozzle 23 contacts the scissor-foot part. The suction pipe 21 evacuates air through the transfer rod 2, the adsorption plate 22, and the vacuum nozzle 23, adsorbing and fixing the scissor-foot part to the bottom of the adsorption plate 22. The adsorption plate 22 and the vacuum nozzle 23 move the scissor-foot part onto the keyboard. The suction pipe 21 releases suction, and the scissor-foot part lands at the keyboard mounting position; the suction pipe 21 passes through the slider... Ring 31 and wire 3 are bendable structures. When the suction pipe 21 slides in the middle of the sliding ring 31, the ball bearing 32 converts the static friction between the suction pipe 21 and the inner wall of the sliding ring 31 into rolling friction. When the second slider 101 drives the transfer rod 2 to move up and down, the transfer rod 2 slides on the outer wall of the guide frame 4. The bracket 5 is fixed to the workbench by fixing bolts, and the reinforcing plate 51 improves the structural strength of the bracket 5. When the bracket 5 is connected to the workbench, the pad 6 buffers the vibration transmitted by the workbench and reduces the vibration of the sliding frame 1, which affects the accuracy of keyboard production and installation.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic and precise positioning device for the displacement of scissor-switch feet in the production of a laptop keyboard, comprising a sliding frame (1); characterized in that: The sliding frame (1) is provided with a three-dimensional moving component in the middle; the sliding frame (1) is provided with an adsorption installation component through the three-dimensional moving component; the sliding frame (1) is provided with an air tube guide component through the three-dimensional moving component; the sliding frame (1) is provided with a support component at the bottom.

2. The automatic and precise positioning device for the displacement of the scissor-switch mechanism in a laptop keyboard according to claim 1, characterized in that: The three-dimensional moving component includes a first servo motor (11), a first lead screw (12), a first slider (13), a first slide rail (14), a second servo motor (15), a second lead screw (16), a second slide rail (17), a third servo motor (18), a third lead screw (19), and a second slider (101); the first servo motor (11) is fixedly connected to the side wall of the sliding frame (1); the first slider (13) is slidably connected to the inner side of the sliding frame (1); the first lead screw (12) is fixedly connected to the transmission end of the first servo motor (11); the first lead screw (12) and the first slider (13) are engaged by a lead screw and nut pair; the first slide rail (14) is fixedly connected to the top of the first slider (13); the second servo motor (15), the first lead screw (16), the first slide rail (17), the second slide rail (18), the third lead screw (19), and the second servo motor (101) are fixedly connected to the transmission end of the first servo motor (11); the first lead screw (12) and the first slider (13) are engaged by a lead screw and nut pair; the first slide rail (14) is fixedly connected to the top of the first slider (13); the second servo motor (15), the first lead screw (16), the first slide rail (17), the second slide rail (18), the third lead screw (19), and the second slide rail (101) are fixedly connected to the transmission end of the first servo motor (11); the first lead screw (12) and the first slider (13) are engaged by a lead screw and nut pair; the first slide rail (14) is fixedly connected to the top of the first slider (13); the second servo motor (15), the first lead screw (16), the first slide rail (17), the second slide rail (18), the third slide rail (19), and the second slide rail The machine (15) is fixedly connected to the end of the first slide rail (14); the second lead screw (16) is fixedly connected to the transmission end of the second servo motor (15); the second slide rail (17) is slidably connected to the inner wall of the first slide rail (14); the second slide rail (17) and the lead screw (16) are engaged; the third servo motor (18) is fixedly connected to the top of the second slide rail (17); the third lead screw (19) is fixedly connected to the transmission end of the third servo motor (18); the second slider (101) is slidably connected inside the second slide rail (17); the third lead screw (19) and the second slider (101) are engaged; the second slide rail (17) is connected to the adsorption mounting assembly through the second slider (101).

3. The automatic and precise positioning device for the displacement of the scissor-switch feet of a laptop keyboard according to claim 2, characterized in that: The adsorption mounting assembly includes a transfer rod (2), a suction pipe (21), an adsorption plate (22), and a vacuum nozzle (23); the transfer rod (2) is fixedly connected to the middle of the second slider (101); the suction pipe (21) is fixedly connected to the top of the transfer rod (2); the adsorption plate (22) is fixedly connected to the bottom of the transfer rod (2); the vacuum nozzle (23) is fixedly connected to the bottom of the adsorption plate (22); multiple sets of vacuum nozzles (23) are provided at the bottom of the adsorption plate (22) and are evenly distributed at the bottom of the adsorption plate (22); air channels are provided inside the adsorption plate (22) and the transfer rod (2); the vacuum nozzle (23) is connected to the suction pipe (21) through the air channels; a stabilizing component is provided on the outer wall of the transfer rod (2).

4. The automatic and precise positioning device for displacement of the scissor-switch mechanism in a laptop keyboard according to claim 3, characterized in that: The airway guide assembly includes a wire (3), a sliding ring (31), and ball bearings (32); one end of the wire (3) is fixedly connected to the top of the first slide rail (14); the sliding ring (31) is fixedly connected to the other end of the wire (3); the ball bearings (32) are tumblingly connected to the inner wall of the sliding ring (31); multiple sets of the ball bearings (32) are arranged on the inner wall of the sliding ring (31) and are evenly distributed on the inner wall of the sliding ring (31); the air extraction tube (21) is slidably engaged with the sliding ring (31).

5. The automatic and precise positioning device for displacement of the scissor-switch feet of a laptop keyboard according to claim 3, characterized in that: The stabilizing component includes a guide frame (4); the guide frame (4) is fixedly connected to the bottom of the second slide rail (17); the guide frame (4) is slidably connected to the outer wall of the transfer rod (2).

6. The automatic and precise positioning device for displacement of the scissor-switch feet of a laptop keyboard according to claim 1, characterized in that: The support assembly includes a bracket (5) and a reinforcing plate (51); the bracket (5) is fixedly connected to the bottom of the sliding frame (1); a pair of brackets (5) are provided at the bottom of the sliding frame (1) and are arranged symmetrically; the reinforcing plate (51) is fixedly connected to the side wall of the bracket (5) away from the sliding frame (1).

7. The automatic and precise positioning device for displacement of the scissor-switch feet of a laptop keyboard according to claim 6, characterized in that: The bracket (5) is fixedly connected to a pad (6); the pad (6) is provided at the bottom of each pair of brackets (5).

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