CN210678457U - A multi-purpose clamping device for assembling keyboard bottom plate - Google Patents

Abstract

The utility model discloses a multi-purpose clamping device used for assembling a keyboard bottom plate, which comprises a workbench, a driving unit, a limit unit and a clamping unit; the workbench: the bottom end of the workbench is arrayed with four supporting legs , the front and rear sides of the workbench are connected with L-shaped plates, the drive unit is installed on the L-shaped plate, the output end of the drive unit is installed with an L-shaped installation plate, and the clamping unit is installed on the L-shaped installation plate; Limiting unit: the limiting unit is distributed in parallel at the top of the workbench; wherein, it also includes a control switch group, which is installed on the L-shaped board, and the input end of the control switch group and the output end of the external power supply The utility model provides a multi-purpose clamping device for assembling the keyboard base plate, which can clamp the keyboard base plates of different thicknesses, sizes and shapes, and the clamping effect is good without affecting the assembly efficiency of the base plate.

Description

A multi-purpose clamping device for assembling keyboard bottom plate

technical field

The utility model relates to the technical field of keyboard bottom plate assembly and clamping, in particular to a multi-purpose clamping device used for keyboard bottom plate assembly.

Background technique

The keyboard is an instruction and data input device used to operate the equipment. It also refers to a group of function keys arranged by the system to operate a machine or equipment. The keyboard is the most commonly used and the most important input device. , numbers, punctuation marks, etc. are input into the computer, so as to issue commands to the computer, input data, etc. The keyboard is composed of a panel and a bottom plate, and a circuit board is installed inside, and the keyboard is controlled by pressing the keycap to input information. With the development of the times , There are more and more types of keyboards. Mechanical keyboards controlled by independent switches are loved by people. When the mechanical keyboard bottom plate is assembled, the bottom plate needs to be fixed, and then the circuit board, the panel and the keycap are installed. The traditional clamping device When clamping, the clamping device is inconvenient to adjust, and the clamping effect is affected by the size of the keyboard bottom plate.

Utility model content

The technical problem to be solved by the utility model is to overcome the existing defects, and to provide a multi-purpose clamping device for assembling the keyboard base plate, which can clamp the keyboard base plates of different thicknesses, sizes and shapes, and has a good clamping effect. The assembly efficiency of the base plate is not affected, and the problems in the background art can be effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a multi-purpose clamping device for assembling a keyboard base plate, comprising a workbench, a driving unit, a limiting unit and a clamping unit;

Workbench: The bottom end of the workbench is arrayed with four legs, the front and rear sides of the workbench are connected with L-shaped plates, the drive unit is installed on the L-shaped plate, and the output end of the drive unit is installed with L-shaped plates. Type mounting plate, the clamping unit is mounted on the L-shaped mounting plate;

Limiting unit: the limiting unit is distributed in parallel on the top of the workbench;

Among them, a control switch group is also included, the control switch group is installed on the L-shaped board, and the input end of the control switch group is electrically connected with the output end of the external power supply.

Further, the drive unit includes a U-shaped connecting shaft, a lead screw, a guide rod, a coupling, a movable plate and a servo motor, the lead screw is provided with two, and the threads on the sides of the two lead screws are rotated in opposite directions. , the two lead screws are connected by a coupling, and the two ends of the two lead screws are respectively connected with the L-shaped plates on both sides for rotation. There are two plates, which are respectively located in the middle of the two lead screws. The movable plate is threadedly connected with the lead screws, and the movable plate is slidably connected with the guide rod. The top of the movable plate is connected with one end of the U-shaped connecting shaft, and the U-shaped connection The other end of the shaft is connected with the L-shaped mounting plate, the servo motor is installed on the side of the L-shaped plate, and the output shaft of the servo motor is connected with the lead screw, and the input end of the servo motor is electrically connected with the output end of the control switch group. The servo motor drives the lead screw to rotate, and drives the two movable plates to move in opposite directions through the two lead screws with different screw directions, so as to realize the movement of the two L-shaped mounting plates, which can quickly locate the keyboard and fix it on the workbench. middle.

Further, the clamping unit includes a circular plate, a circular rod, a compression spring and an inverted trapezoidal pressing block, the clamping unit is mounted on the L-shaped mounting plate in parallel, and the circular rod is slidably connected to the L-shaped mounting plate, The top end of the round rod is connected with the circular plate, the bottom end of the round rod is connected with the inverted trapezoidal pressure block, the bottom end face of the inverted trapezoidal pressure block is provided with a stopper, and the compression spring is sleeved on the side of the round rod and is located in the L-shaped installation. Between the bottom end of the horizontal plate of the plate and the inverted trapezoidal pressure block, the inclined surface of the inverted trapezoidal pressure block contacts with the keyboard bottom plate and slides to the bottom surface of the inverted trapezoidal pressure block, and the longitudinal direction of the keyboard bottom plate is fixed by the pressure of the compression spring, which is convenient for Fast fix while being able to adapt to keyboards of different thicknesses.

Further, it also includes a chute and a slider, the chute is evenly opened on the L-shaped mounting plate, the number of the sliders corresponds to the number of the chute, and one end of the slider is fixedly connected to the side of the inverted trapezoidal pressure block, The other end of the slider is slidably connected to the chute, and the inverted trapezoidal pressure block is supported by the slider, which can prevent the round rod from bending due to the pressure of the keyboard bottom plate when the two L-shaped mounting plates are approaching each other.

Further, the limit unit includes a displacement hole, a limit plate and a telescopic rod, the displacement holes are evenly opened on the left and right sides of the worktable, the bottom end of the displacement hole is provided with a slider, and the limit plate is provided. The bottom end is provided with a sliding groove corresponding to the sliding bar, the sliding groove is slidably connected with the sliding bar, the side of the limit plate is connected with the fixed end of the telescopic rod, the telescopic end of the telescopic rod is connected with the inner wall of the displacement hole, and the telescopic rod is connected with the inner wall of the displacement hole. The upper sleeve is connected with a tension spring, which can control different clamping positions through multiple sets of limit units. It has a good limit effect for some keyboards with strange shapes and uneven sides.

Further, it also includes a fixture, the fixture includes a vertical plate, a baffle plate and a fixing block, the fixtures are evenly distributed on the worktable, and correspond to the positions of the limit units one-to-one, and the vertical plate is arranged on the working table. At the position on the table near the displacement hole, the vertical plate is connected with one end of the baffle plate in rotation. By using the baffle and the fixing block structure, each limit board can be fixed, and limit boards at different positions can be selected for use according to the shape and size of the keyboard.

Compared with the prior art, the beneficial effects of the present utility model are: the multi-purpose clamping device used for assembling the keyboard bottom plate has the following advantages:

The multi-purpose clamping device used for assembling the keyboard bottom plate uses the servo motor to drive the screw to rotate, which drives the two movable plates to move in opposite directions, and then drives the L-shaped mounting plate and the clamping unit to move through the U-shaped connecting shaft, so as to realize the lateral movement of the keyboard. and longitudinal clamping, the clamping method is simple, and selective limiting is performed by multiple sets of limit units distributed in parallel on both sides. The keyboard is fixed in the middle of the workbench. For keyboards with different shapes, sizes and thicknesses , can be effectively clamped, suitable for the assembly and use of various keyboard bottom plates, the clamping effect is good, and the assembly of the keyboard bottom plate is convenient.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic view of the utility model looking down on the structure;

Fig. 3 is the B-B cross-sectional structural schematic diagram of the utility model;

FIG. 4 is a schematic diagram of a partially enlarged structure at A part of the present invention.

In the picture: 1 control switch group, 2 worktable, 3 legs, 4 drive unit, 41 U-shaped connecting shaft, 42 lead screw, 43 guide rod, 44 coupling, 45 movable plate, 46 servo motor, 5 limit Unit, 51 displacement hole, 52 limit plate, 53 telescopic rod, 6 holder, 61 vertical plate, 62 baffle plate, 63 fixed block, 7 clamping unit, 71 circular plate, 72 circular rod, 73 compression spring, 74 inverted Trapezoidal pressure block, 8 L-shaped mounting plate, 9 L-shaped plate, 10 chute, 11 slider.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1-4 , the present utility model provides a technical solution: a multi-purpose clamping device for assembling a keyboard base plate, comprising a workbench 2 , a driving unit 4 , a limiting unit 5 and a clamping unit 7 ;

Workbench 2: There are four outriggers 3 distributed at the bottom end of the workbench 2. The four outriggers 3 support the workbench 2 to a certain height. The front and rear sides of the workbench 2 are connected with L-shaped plates 9 to drive The unit 4 is installed on the L-shaped plate 9, and the output end of the drive unit 4 is installed with an L-shaped installation plate 8. The drive unit 4 is used to control the movement of the L-shaped installation plate 8. The drive unit 4 includes a U-shaped connecting shaft 41, a wire The screw 42, the guide rod 43, the coupling 44, the movable plate 45 and the servo motor 46 are provided with two screws 42, and the threads on the sides of the two screws 42 are rotated in opposite directions, and the two screws 42 pass through the coupling. 44 is connected, and the two ends of the two lead screws 42 are respectively connected to the L-shaped plates 9 on both sides for rotation. On both sides of the screw 42 and parallel to the lead screw 42, there are two movable plates 45, which are located in the middle of the two lead screws 42 respectively. In the middle position of the table 2, the movable plate 45 is threadedly connected with the lead screw 42, and the movable plate 45 is slidably connected with the guide rod 43. When the lead screw 42 rotates, the movable plate 45 can be driven to move along the guide rod 43. The top end is connected with one end of the U-shaped connecting shaft 41, and the other end of the U-shaped connecting shaft 41 is connected with the L-shaped mounting plate 8. The U-shaped connecting shaft 41 is not in contact with the worktable 2, and is used to drive the L-shaped mounting plate 8 to move. The servo motor 46 is installed on the side of the L-shaped plate 9, and the output shaft of the servo motor 46 is connected with the lead screw 42. When the drive unit 4 is working, the servo motor 46 rotates to drive the lead screw 42 to rotate, and drives the two movable plates 45 to rotate along the lead screw 42. The guide rods 43 are close to each other, thereby driving the U-shaped connecting shaft 41 and the L-shaped mounting plate 8 to approach each other. The clamping unit 7 is installed on the L-shaped mounting plate 8 for clamping the keyboard bottom plate. The clamping unit 7 includes a circular plate. 71. The round rod 72, the compression spring 73 and the inverted trapezoidal pressure block 74, the clamping unit 7 is installed on the L-shaped mounting plate 8 in parallel, and the keyboard bottom plate is clamped and fixed in the process of the two L-shaped mounting plates 8 approaching , the round rod 72 is slidably connected with the L-shaped mounting plate 8, the top end of the round rod 72 is connected with the circular plate 71, the circular plate 71 can limit the sliding position of the round rod 72, and the bottom end of the round rod 72 is connected with the inverted trapezoidal pressing block 74 Connection, the bottom end face of the inverted trapezoidal pressure block 74 is provided with a stopper to provide lateral pressure, the inclined surface of the inverted trapezoidal pressure block 74 is smooth, and the compression spring 73 is sleeved on the side of the round rod 72 and is located in the L-shaped installation Between the bottom end of the transverse plate of the plate 8 and the inverted trapezoidal pressing block 74, a certain pressure is provided for the inverted trapezoidal pressing block 74. When the clamping unit 7 is working, driven by the L-shaped mounting plate 8, the inverted trapezoidal pressing block 74 first In contact with the side surface of the keyboard bottom plate, and during the approach of the two L-shaped mounting plates 8, under the action of pressure, the inverted trapezoidal pressure block 74 drives the round rod 72 to move upward, and then the compression spring 73 shortens and the pressure increases. When the bottom end block of the inverted trapezoidal pressing block 74 is in contact with the keyboard bottom plate, the fixing is completed, and the sliding groove 10 and the sliding block 11 are also included, and the sliding groove 10 is evenly opened On the L-shaped mounting plate 8, the number of the sliders 11 corresponds to the number of the sliding grooves 10, one end of the sliding block 11 is fixedly connected with the side surface of the inverted trapezoidal pressing block 74, and the other end of the sliding block 11 is slidably connected with the sliding groove 10. The upward movement of the inverted trapezoidal pressing block 74 is under the action of pressure, and the round rod 72 tends to tilt over a long period of time. Therefore, the use of the slider 11 as the supporting structure can improve the service life of the round rod 72;

Limiting unit 5: The limiting unit 5 is distributed in parallel at the top of the table 2 and is located on both sides of the table 2. The limiting unit 5 includes a displacement hole 51, a limit plate 52 and a telescopic rod 53. The displacement hole 51 The bottom end of the displacement hole 51 is provided with a slide bar, the bottom end of the limit plate 52 is provided with a slide groove corresponding to the slide bar, the slide groove is slidably connected with the slide bar, and the limit The plate 52 is located in the displacement hole 51, the side of the limit plate 52 is connected with the fixed end of the telescopic rod 53, the telescopic end of the telescopic rod 53 is connected with the inner wall of the displacement hole 51, and the telescopic rod 53 is sleeved with a tension spring to provide tension , pull the limit plate 52 to the middle of the workbench 2, and also include a holder 6 for controlling each limit unit 5, the holder includes a vertical plate 61, a baffle 62 and a fixing block 63, and the holder 6 is evenly distributed in the On the worktable 2, and corresponding to the positions of the limit units 5 one-to-one, each limiter unit 5 is provided with a holder 6, and the vertical plate 61 is set on the worktable 2 near the displacement hole 51. The plate 61 is rotatably connected to one end of the baffle 62, the fixing block 63 is installed on the worktable 2 near the other side of the displacement hole 51, and the fixing block 63 is clamped with the other end of the baffle 62. The use method is very simple. The limit plate 52 can be controlled by rotating the baffle plate 62;

Among them, the control switch group 1 is also included. The control switch group 1 is installed on the L-shaped plate 9. The input end of the control switch group 1 is electrically connected with the output end of the external power supply, and the output end of the control switch group 1 is connected with the servo motor 46. The input terminal is electrically connected.

In use: place the keyboard bottom plate in the middle of the workbench 2, make the longer side of the keyboard bottom plate parallel to the left side of the workbench 2, start the servo motor 46, and the output shaft of the servo motor 46 rotates to drive the lead screw 42 Rotate, and drive the two movable plates 45 to approach each other along the guide rod 43, and then drive the U-shaped connecting shaft 41 and the L-shaped mounting plate 8 to approach each other, and then the inverted trapezoidal pressing block 74 first contacts with the side of the keyboard bottom plate, and at the two sides. During the approaching process of the L-shaped mounting plates 8, under the action of pressure, the inverted trapezoidal pressure block 74 drives the round rod 72 to move upward, drives the slider 11 to move upward along the chute 10, and then the compression spring 73 shortens and the pressure increases, When the bottom block moved to the inverted trapezoidal pressure block 74 contacts with the keyboard bottom plate, the longitudinal and front and rear sides of the keyboard bottom plate are clamped, and the limit unit 5 at the appropriate position is selected according to the shape of the keyboard bottom plate for use. From the plate 62 to the side of the vertical plate 61, the limit plate 52 moves along the displacement hole 51 under the action of the tension spring, the telescopic rod 53 shortens, and drives the limit plate 52 to move to contact with the left and right sides of the keyboard bottom plate , complete the clamping of the keyboard bottom plate.

It is worth noting that the core chip of the control switch group 1 disclosed in this embodiment is a PLC single-chip microcomputer, the specific model is STM32F100C4, the preferred model of the servo motor 46 is 80SW01330F, and the control switch group 1 controls the servo motor 46 to work using existing methods commonly used in technology.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A multi-purpose clamping device for assembling a keyboard base plate, characterized in that: comprising a workbench (2), a drive unit (4), a limit unit (5) and a clamping unit (7); Workbench (2): the bottom end of the workbench (2) is arrayed with four legs (3), and L-shaped plates (9) are connected to the front and rear sides of the workbench (2). (4) Installed on the L-shaped plate (9), the output end of the drive unit (4) is installed with an L-shaped installation plate (8), and the clamping unit (7) is installed on the L-shaped installation plate (8); Limiting unit (5): the limiting unit (5) is distributed in parallel on the top of the workbench (2); The control switch group (1) is also included, the control switch group (1) is installed on the L-shaped plate (9), and the input end of the control switch group (1) is electrically connected with the output end of the external power supply. 2. A multi-purpose clamping device for assembling a keyboard base plate according to claim 1, wherein the drive unit (4) comprises a U-shaped connecting shaft (41), a lead screw (42), a guide A rod (43), a coupling (44), a movable plate (45) and a servo motor (46), the two lead screws (42) are provided, and the threads on the sides of the two lead screws (42) have opposite directions of rotation , the two lead screws (42) are connected by the coupling (44), and the two ends of the two lead screws (42) are respectively connected with the L-shaped plates (9) on both sides in rotation, and the guide rod (43) is provided with There are two and are installed on the L-shaped plate (9) in parallel, the movable plate (45) is provided with two, and is located in the middle of the two lead screws (42), the movable plate (45) and the lead screw (42) ) threaded connection, and the movable plate (45) is slidably connected with the guide rod (43), the top end of the movable plate (45) is connected with one end of the U-shaped connecting shaft (41), and the other end of the U-shaped connecting shaft (41) is connected with The L-shaped mounting plate (8) is connected, the servo motor (46) is installed on the side of the L-shaped plate (9), and the output shaft of the servo motor (46) is connected with the lead screw (42). The input end is electrically connected with the output end of the control switch group (1). 3. The multi-purpose clamping device for assembling a keyboard base plate according to claim 1, wherein the clamping unit (7) comprises a circular plate (71), a circular rod (72), a compression spring (73) and an inverted trapezoidal pressing block (74), the clamping unit (7) is mounted on the L-shaped mounting plate (8) in parallel, and the round rod (72) is slidably connected with the L-shaped mounting plate (8), The top end of the round rod (72) is connected with the circular plate (71), the bottom end of the round rod (72) is connected with the inverted trapezoidal pressing block (74), and the bottom end face of the inverted trapezoidal pressing block (74) is provided with a stopper. The compression spring (73) is sleeved on the side surface of the round rod (72), and is located between the bottom end of the transverse plate of the L-shaped mounting plate (8) and the inverted trapezoidal pressing block (74). 4. A kind of multi-purpose clamping device for keyboard bottom plate assembly according to claim 3, characterized in that: it also comprises a chute (10) and a slider (11), and the chute (10) is evenly opened in the On the L-shaped mounting plate (8), the number of the sliding blocks (11) corresponds to the number of the sliding grooves (10). One end of the sliding block (11) is fixedly connected to the side surface of the inverted trapezoidal pressing block (74). The other end of 11) is slidingly connected with the chute (10). 5. A multi-purpose clamping device for assembling a keyboard base plate according to claim 1, wherein the limiting unit (5) comprises a displacement hole (51), a limiting plate (52) and a telescopic A rod (53), the displacement holes (51) are evenly opened on the left and right sides of the workbench (2), the bottom end of the displacement hole (51) is provided with a slider, and the bottom end of the limit plate (52) A sliding groove corresponding to the sliding bar is provided, the sliding groove is slidably connected with the sliding bar, the side surface of the limit plate (52) is connected with the fixed end of the telescopic rod (53), and the telescopic end of the telescopic rod (53) is connected with the displacement hole The inner wall of (51) is connected, and a tension spring is sleeved on the telescopic rod (53). 6. The multi-purpose clamping device for assembling a keyboard base plate according to claim 5, characterized in that it further comprises a holder (6), and the holder comprises a vertical plate (61), a baffle plate (62) ) and the fixing block (63), the fixers (6) are evenly distributed on the workbench (2), and correspond to the positions of the limiting units (5) one-to-one, and the vertical plate (61) is arranged on the workbench (2). ) on the side close to the displacement hole (51), the vertical plate (61) is rotatably connected to one end of the baffle plate (62), and the fixing block (63) is installed on the workbench (2) close to the displacement hole (51) the position on the other side, and the fixing block (63) is clamped with the other end of the baffle plate (62).

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