Positioning device for desk and chair wood board cutting

Abstract

The utility model relates to the field of desk and chair wood board positioning, especially a kind of positioning device of desk and chair wood board cutting. Including processing board, the top of processing board is symmetrically provided with two groups of first sliding slot, a group of first lead screw is rotatably connected in two groups of first sliding slot, a group of first sliding block is threadedly connected on two groups of first lead screw, the top of processing board is symmetrically provided with two groups of second sliding slot, a group of second lead screw is rotatably connected in two groups of second sliding slot, a group of second sliding block is threadedly connected on two groups of second lead screw, the upper of processing board is provided with several groups of fixed component, storage cavity is seted up in processing board, installation column is installed in the top inner wall center of storage cavity, several groups of installation cavity are arranged in the form of ring on the outer wall of installation column. The embodiment has the effect of automatically adjusting clamping force and position, reduces labor intensity by reducing human intervention, improves efficiency and adaptability.

Description

Technical Field

[0001] This utility model belongs to the field of positioning technology for wooden boards for school desks and chairs, and specifically relates to a positioning device for cutting wooden boards for school desks and chairs. Background Technology

[0002] The wooden boards of school desks and chairs are usually made of a variety of woods, each with its own unique properties and suitable applications.

[0003] A search revealed that in the prior art, Chinese Patent Publication No. CN216730688U, authorized on June 14, 2022, discloses a positioning device for a board cutting machine for school desks and chairs. The device includes a processing table, a U-shaped plate mounted on the right side of the processing table, a worm gear rotatably mounted on the U-shaped plate, a base plate mounted on one side of the U-shaped plate, an adjustment mechanism on the base plate, a sliding groove on the upper part of the processing table, a slider slidably mounted within the groove, and a clamping plate mounted on the upper part of the slider. This embodiment prevents the device from shaking during cutting.

[0004] However, the device still has the following drawbacks: the above embodiment adjusts the position of the clamping plate by manual adjustment, which is cumbersome and requires manual observation of the scale for size adjustment. If the clamping force and position cannot be automatically adjusted, it will lead to more human intervention and poor adaptability, thereby increasing labor intensity and reducing efficiency. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a positioning device for cutting wooden boards for school desks and chairs, comprising a processing plate. Two sets of first sliding grooves are symmetrically formed on the top of the processing plate, each set containing a first lead screw rotatably connected to it. Each set of first lead screws is threadedly connected to a set of first sliders. Two sets of second sliding grooves are symmetrically formed on the top of the processing plate, each containing a second lead screw rotatably connected to it. Each set of second lead screws is threadedly connected to a set of second sliders. Several sets of fixing components are arranged above the processing plate. A storage cavity is formed within the processing plate. A mounting post is installed at the center of the top inner wall of the storage cavity. Several sets of mounting chambers are arranged in a circular array on the outer wall of the mounting post. Each mounting chamber contains a set of electric push rods. Several sets of first bevel gears are arranged in a circular array within the storage cavity. A second bevel gear is located directly below the mounting post.

[0006] Furthermore, two sets of support plates are symmetrically installed on the bottom of the processing plate, an installation box is installed on one side wall of the processing plate, a control panel is installed on the side wall of the installation box away from the processing plate, a display screen is provided on the control panel, a central processing unit is provided inside the installation box, and the control panel is electrically connected to the central processing unit.

[0007] Furthermore, each group of first sliders slides within one group of first slide grooves, and each group of second sliders slides within one group of second slide grooves. The processing plate has several groups of through grooves arranged in a circular array. The several groups of through grooves are all connected to the storage cavity, and the other end of the several groups of through grooves is connected to two groups of first slide grooves and two groups of second slide grooves, respectively.

[0008] Furthermore, the fixing component includes a movable plate, on one side wall of the movable plate a plurality of sets of limiting holes arranged in a rectangular array, and a clamping plate is provided at one end of the movable plate. On the side wall of the clamping plate near the movable plate a plurality of sets of limiting rods are installed in a rectangular array, and the end of each set of limiting rods away from the clamping plate passes through one set of limiting holes.

[0009] Furthermore, each set of limiting rods is provided with a set of springs, and a moving plate and a clamping plate are respectively installed at both ends of each set of springs. A pressure sensor is embedded in the side wall of the clamping plate away from the moving plate, and a soft pad is installed on the side wall of the clamping plate away from the moving plate. The soft pad has a slot.

[0010] Furthermore, a storage groove is provided at the bottom center of the processing plate, and an installation plate is installed in the storage groove. The two sets of first sliding grooves, the two sets of second sliding grooves, the storage cavity and several sets of through grooves are all connected to the storage groove, and the storage groove is located directly below the storage cavity.

[0011] Furthermore, each set of electric push rods is electrically connected to the central processing unit, each set of electric push rods is electrically connected to one set of pressure sensors, each set of electric push rods has a set of mounting plates installed on its output end, each set of mounting plates has a set of connecting rods rotatably connected to the end of each set of mounting plates away from the electric push rods, and each set of connecting rods has a set of first bevel gears connected to the side wall of each set of connecting rods away from the mounting plate.

[0012] Furthermore, each set of first bevel gears is equipped with a set of fixing posts at the end away from the connecting rod, and each set of fixing posts is provided with a set of moving cavities at the end away from the first bevel gear. Each set of fixing posts is also provided with two sets of slots symmetrically at the end away from the first bevel gear, and the two sets of slots are connected to the moving cavities.

[0013] Furthermore, each set of the moving cavities has a set of connecting columns that slide within it. Each set of the connecting columns has two sets of locking blocks symmetrically installed on its outer wall. Each set of locking blocks is movably engaged in one of the locking slots. The end of each set of the connecting columns away from the first bevel gear passes through the moving cavity and is respectively installed at the ends of the two sets of first lead screws and the two sets of second lead screws.

[0014] Furthermore, a motor is installed at the top center of the mounting plate, the motor is electrically connected to the central processing unit, a support column is installed on the output end of the motor, the top of the support column is installed at the bottom center of the second bevel gear, a rotating rod is installed on the top of the second bevel gear, and a rotating cavity is opened at the bottom center of the mounting column, and the rotating rod rotates in the rotating cavity.

[0015] The beneficial effects of this utility model are:

[0016] 1. The starting motor drives the second bevel gear to rotate, which in turn drives several sets of first bevel gears to rotate. These sets of first bevel gears simultaneously drive two sets of first lead screws and two sets of second lead screws to rotate. As the first and second lead screws move, they drive the first slider and the second slider to move. Several sets of fixed components move closer to the wooden board. The electric push rod is activated, which drives the first bevel gear to move away from the second bevel gear. The corresponding fixed components stop moving, while other fixed components that have not reached the clamping force requirement continue to move. This achieves the effect of automatically adjusting the clamping force and position, reducing human intervention, lowering labor intensity, and improving efficiency and adaptability.

[0017] 2. The soft pad is attached to the side wall of the panel. The pressure sensor monitors the pressure of the clamping plate on the wooden board in real time and monitors the clamping force to prevent the wooden board from being damaged due to excessive clamping force or displaced due to insufficient clamping force. During the clamping process, the soft pad protects the surface of the wooden board and avoids scratches or damage caused by direct contact between the clamping plate and the board.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the positioning device structure according to an embodiment of the present invention is shown;

[0021] Figure 2 A cross-sectional schematic diagram of a positioning device according to an embodiment of the present invention is shown;

[0022] Figure 3A schematic diagram of the disassembled fixing component according to an embodiment of the present invention is shown;

[0023] Figure 4 A cross-sectional schematic diagram of a fixed column according to an embodiment of the present invention is shown.

[0024] In the diagram: 1. Processing plate; 2. Support plate; 3. Mounting box; 4. Control panel; 5. Central processing unit; 6. First slide rail; 7. First lead screw; 8. First slider; 9. Second slide rail; 10. Second lead screw; 11. Second slider; 12. Fixing assembly; 121. Moving plate; 122. Limiting hole; 123. Clamping plate; 124. Limiting rod; 125. Spring; 126. Pressure sensor; 127. Soft pad; 12 8. Empty slot; 13. Storage cavity; 14. Through slot; 15. Storage groove; 16. Mounting plate; 17. Mounting column; 18. Mounting cavity; 19. Electric push rod; 20. Mounting plate; 21. Connecting rod; 22. First bevel gear; 23. Fixed column; 24. Moving cavity; 25. Slot; 26. Connecting column; 27. Motor; 28. Support column; 29. ​​Second bevel gear; 30. Rotating rod; 31. Rotating cavity; 32. Locking block. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] This utility model embodiment provides a positioning device for cutting wooden boards for school desks and chairs, including a processing board 1, exemplarily, such as... Figure 1 and Figure 2As shown, two sets of support plates 2 are symmetrically installed at the bottom of the processing plate 1. A mounting box 3 is installed on one side wall of the processing plate 1. A control panel 4 is installed on the side wall of the mounting box 3 away from the processing plate 1. A display screen is provided on the control panel 4. A central processing unit 5 is provided inside the mounting box 3. The control panel 4 is electrically connected to the central processing unit 5. Two sets of first sliding grooves 6 are symmetrically opened at the top of the processing plate 1. A set of first lead screws 7 are rotatably connected in each set of first sliding grooves 6. A set of first sliders 8 are threadedly connected to each set of first lead screws 7. Each set of first sliders 8 slides in one set of first sliding grooves 6. Two sets of second sliding grooves 9 are symmetrically opened at the top of the processing plate 1. A set of second lead screws 10 are rotatably connected in each set of second sliding grooves 9. A set of second sliders 11 are threadedly connected to each set of second lead screws 10. Each set of second sliders 11 slides in one set of second sliding grooves 9. Several sets of fixing components 12 are provided above the processing plate 1.

[0027] For example, such as Figure 2 and Figure 3 As shown, the fixing component 12 includes a movable plate 121. A plurality of sets of limiting holes 122 are formed in a rectangular array on one side wall of the movable plate 121. A clamping plate 123 is provided at one end of the movable plate 121. A plurality of sets of limiting rods 124 are installed in a rectangular array on the side wall of the clamping plate 123 near the movable plate 121. The end of each set of limiting rods 124 away from the clamping plate 123 passes through one set of limiting holes 122. A set of springs 125 is provided on each set of limiting rods 124. The two ends of each set of springs 125 are respectively installed on the movable plate 121 and the clamping plate 123. A pressure sensor 126 is embedded in the side wall of the clamping plate 123 away from the movable plate 121. A soft pad 127 is installed on the side wall of the clamping plate 123 away from the movable plate 121. A slot 128 is formed in the soft pad 127.

[0028] For example, such as Figure 2 and Figure 4As shown, the processing plate 1 has a storage cavity 13, and several sets of through grooves 14 are arranged in a circular array within the processing plate 1. All sets of through grooves 14 communicate with the storage cavity 13, and the other ends of the through grooves 14 are respectively connected to two sets of first sliding grooves 6 and two sets of second sliding grooves 9. A storage slot 15 is provided at the center of the bottom of the processing plate 1, and an mounting plate 16 is installed in the storage slot 15. The two sets of first sliding grooves 6, the two sets of second sliding grooves 9, the storage cavity 13, and the several sets of through grooves 14 are all connected to the storage slot 15. The storage slot 15 is located directly below the storage cavity 13. A mounting post 17 is installed at the center of the top inner wall of the storage cavity 13. Several sets of mounting cavities 18 are arranged in a circular array on the outer wall of the mounting post 17. Each set of mounting cavities 18 contains a set of electric push rods 19. Each set of electric push rods 19 is electrically connected to the central processing unit 5 and to one of the pressure sensors 126. A mounting plate is installed on the output end of each set of electric push rods 19. 20. Each set of mounting plates 20 has a set of connecting rods 21 rotatably connected to the end away from the electric push rod 19. Several sets of first bevel gears 22 are arranged in a circular array inside the storage cavity 13. Each set of connecting rods 21 is connected to one set of first bevel gears 22 on one side wall away from the mounting plate 20. Each set of first bevel gears 22 has a set of fixing posts 23 installed at the end away from the connecting rod 21. Each set of fixing posts 23 has a set of moving cavities 24 at the end away from the first bevel gears 22. Two sets of slots 25 are symmetrically provided at the end of the fixed column 23 away from the first bevel gear 22. The two sets of slots 25 are connected to the moving cavity 24. A set of connecting columns 26 slides in each set of moving cavities 24. Two sets of locking blocks 32 are symmetrically installed on the outer wall of each set of connecting columns 26. Each set of locking blocks 32 is movably locked in one set of slots 25. The end of each set of connecting columns 26 away from the first bevel gear 22 passes through the moving cavity 24 and is respectively installed at the ends of the two sets of first lead screws 7 and the two sets of second lead screws 10.

[0029] A motor 27 is installed at the top center of the mounting plate 16. The motor 27 is electrically connected to the central processing unit 5. A support column 28 is installed on the output end of the motor 27. A second bevel gear 29 is arranged directly below the mounting column 17. The top of the support column 28 is installed at the bottom center of the second bevel gear 29. A rotating rod 30 is installed on the top of the second bevel gear 29. A rotating cavity 31 is opened at the bottom center of the mounting column 17. The rotating rod 30 rotates in the rotating cavity 31.

[0030] Working principle: The wooden board is placed on top of the processing board 1. The motor 27 is started, which drives the support column 28 to rotate and at the same time drives the second bevel gear 29 to rotate. The second bevel gear 29 drives several sets of first bevel gears 22 to rotate and at the same time drives two sets of first lead screws 7 and two sets of second lead screws 10 to rotate. The rotation of the first lead screws 7 and the second lead screws 10 drives the first slider 8 to move and the second slider 11 to move. The two sets of first sliders 8 and the two sets of second sliders 11 drive several sets of fixing components 12 to move closer to the wooden board for fixing and clamping.

[0031] The soft pad 127 is attached to the side wall of the panel. The pressure sensor 126 monitors the pressure of the clamping plate 123 on the wooden board in real time, and monitors the clamping force to prevent the wooden board from being damaged due to excessive clamping force or displaced due to insufficient clamping force. The data is fed back to the central processing unit 5 and can be viewed on the display screen on the control panel 4. During the clamping process, the soft pad 127 protects the surface of the wooden board and prevents the clamping plate 123 from directly contacting it and causing scratches or damage.

[0032] When a set of fixing components 12 reaches the appropriate clamping force, the central processing unit 5 sends a signal to the corresponding electric push rod 19, the motor 27 temporarily stops, the electric push rod 19 starts and drives the mounting plate 20 to move while driving the connecting rod 21 to move. The connecting rod 21 drives the first bevel gear 22 to move while driving the fixing column 23 to move. The connecting column 26 slides in the moving cavity 24, the first bevel gear 22 separates from the second bevel gear 29, the motor 27 is started again, the corresponding fixing component 12 stops moving, while the other fixing components 12 that have not reached the clamping force requirement continue to move until all four sets of soft pads 127 detect pressure. The electric push rod 19 drives the first bevel gear 22 to move and mesh with the second bevel gear 29 again. At this time, the wooden board is evenly clamped to ensure that it will not shift during the cutting process.

[0033] After the cutting is completed, the motor 27 is started in reverse, causing the first lead screw 7 and the second lead screw 10 to rotate in opposite directions. The first slider 8 and the second slider 11 drive the fixing component 12 away from the wooden board, thus completing the release operation.

[0034] The starting motor 27 drives the second bevel gear 29 to rotate, while simultaneously driving several sets of first bevel gears 22 to rotate. The several sets of first bevel gears 22 simultaneously drive two sets of first lead screws 7 and two sets of second lead screws 10 to rotate. As the first lead screws 7 and second lead screws 10 move, they drive the first slider 8 to move and the second slider 11 to move. Several sets of fixing components 12 move closer to the wooden board. The electric push rod 19 starts, driving the first bevel gear 22 to move away from the second bevel gear 29. The corresponding fixing component 12 stops moving, while other fixing components 12 that have not reached the clamping force requirement continue to move. This achieves the effect of automatically adjusting the clamping force and position, reducing human intervention, lowering labor intensity, and improving efficiency and adaptability.

[0035] The soft pad 127 is attached to the side wall of the panel. The pressure sensor 126 monitors the pressure of the clamping plate 123 on the wooden board in real time and monitors the clamping force to prevent the wooden board from being damaged due to excessive clamping force or displaced due to insufficient clamping force. During the clamping process, the soft pad 127 protects the surface of the wooden board and avoids the clamping plate 123 from directly contacting it and causing scratches or damage.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A positioning device for cutting wooden boards for school desks and chairs, comprising a processing board, characterized in that: The processing plate has two sets of first sliding grooves symmetrically formed on its top. Each set of first sliding grooves is rotatably connected to a set of first lead screws, and each set of first lead screws is threadedly connected to a set of first sliders. The processing plate also has two sets of second sliding grooves symmetrically formed on its top. Each set of second sliding grooves is rotatably connected to a set of second lead screws, and each set of second lead screws is threadedly connected to a set of second sliders. Several sets of fixing components are arranged above the processing plate. A storage cavity is formed inside the processing plate. A mounting post is installed at the center of the top inner wall of the storage cavity. Several sets of mounting chambers are arranged in a circular array on the outer wall of the mounting post. Each set of mounting chambers contains a set of electric push rods. Several sets of first bevel gears are arranged in a circular array inside the storage cavity. A second bevel gear is located directly below the mounting post.

2. The positioning device for cutting wooden boards for school desks and chairs according to claim 1, characterized in that: Two sets of support plates are symmetrically installed on the bottom of the processing plate. An installation box is installed on one side wall of the processing plate. A control panel is installed on the side wall of the installation box away from the processing plate. A display screen is provided on the control panel. A central processing unit is provided inside the installation box. The control panel is electrically connected to the central processing unit.

3. The positioning device for cutting wooden boards for school desks and chairs according to claim 1, characterized in that: Each group of first sliders slides within one group of first slide grooves, and each group of second sliders slides within one group of second slide grooves. The processing plate has several groups of through grooves arranged in a circular array. The several groups of through grooves are all connected to the storage cavity, and the other end of the several groups of through grooves is connected to two groups of first slide grooves and two groups of second slide grooves, respectively.

4. The positioning device for cutting wooden boards for school desks and chairs according to claim 1, characterized in that: The fixing component includes a movable plate, on one side wall of the movable plate a plurality of sets of limiting holes arranged in a rectangular array, and a clamping plate is provided at one end of the movable plate. On the side wall of the clamping plate near the movable plate a plurality of sets of limiting rods are installed in a rectangular array, and the end of each set of limiting rods away from the clamping plate passes through one set of limiting holes.

5. The positioning device for cutting wooden boards for school desks and chairs according to claim 4, characterized in that: Each set of limiting rods is equipped with a set of springs. The two ends of each set of springs are respectively mounted on a moving plate and a clamping plate. A pressure sensor is embedded in the side wall of the clamping plate away from the moving plate. A soft pad is installed on the side wall of the clamping plate away from the moving plate. The soft pad has a slot.

6. The positioning device for cutting wooden boards for school desks and chairs according to claim 1, characterized in that: A storage groove is provided at the bottom center of the processing plate, and an installation plate is installed in the storage groove. The two sets of first sliding grooves, the two sets of second sliding grooves, the storage cavity and several sets of through grooves are all connected to the storage groove, and the storage groove is located directly below the storage cavity.

7. The positioning device for cutting wooden boards for school desks and chairs according to claim 5, characterized in that: Each set of electric actuators is electrically connected to the central processing unit, and each set of electric actuators is electrically connected to one set of pressure sensors. Each set of electric actuators has a set of mounting plates installed on its output end. Each set of mounting plates has a set of connecting rods rotatably connected to the end of each set of mounting plates away from the electric actuators. Each set of connecting rods has a set of first bevel gears connected to the side wall of each set away from the mounting plate.

8. The positioning device for cutting wooden boards for school desks and chairs according to claim 7, characterized in that: Each set of first bevel gears has a set of fixed posts installed at the end away from the connecting rod. Each set of fixed posts has a set of moving cavities at the end away from the first bevel gear. Each set of fixed posts has two sets of slots symmetrically opened at the end away from the first bevel gear. The two sets of slots are connected to the moving cavities.

9. The positioning device for cutting wooden boards for school desks and chairs according to claim 8, characterized in that: Each set of moving cavities has a set of connecting columns that slide within it. Each set of connecting columns has two sets of locking blocks symmetrically installed on its outer wall. Each set of locking blocks is movably engaged in one of the locking slots. The end of each set of connecting columns away from the first bevel gear passes through the moving cavity and is respectively installed at the ends of the two sets of first lead screws and the two sets of second lead screws.

10. The positioning device for cutting wooden boards for school desks and chairs according to claim 6, characterized in that: A motor is installed at the top center of the mounting plate. The motor is electrically connected to the central processing unit. A support column is installed on the output end of the motor. The top of the support column is installed at the bottom center of the second bevel gear. A rotating rod is installed on the top of the second bevel gear. A rotating cavity is opened at the bottom center of the mounting column, and the rotating rod rotates in the rotating cavity.

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