Desk panel burr polishing device

Abstract

The invention relates to the technical field of polishing machining, in particular to a desk panel burr polishing device which comprises a base frame, a sliding frame is slidably arranged at the top of the base frame, a supporting frame is fixedly installed on the base frame, a triangular sliding block is fixedly connected to the side wall of the sliding frame, and the triangular sliding block is slidably connected with the supporting frame. A first driving mechanism is arranged on the base frame and is used for driving the sliding frame to move; through the arrangement of the polishing mechanism, during initial polishing, large burrs and uneven parts in a to-be-polished hole are rapidly removed through rough polishing, and after rough polishing is completed, the polishing mechanism can automatically switch fine polishing and secondary polishing of the to-be-polished hole, so that tiny burrs and scratches left in the rough polishing process are removed, and the polishing efficiency is improved. And it is guaranteed that the interior of the to-be-polished hole is smooth and flawless, and the overall polishing quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding processing, in particular to a burr grinding device for a desk top. Background Art

[0002] Grinding is a process of removing uneven parts, burrs, oxide layers or other defects on the surface of a material by mechanical friction to achieve a smooth, flat or specific shape of the surface. Grinding can not only improve the appearance of the material, but also improve its functionality and durability. Grinding is widely used in the processing of various materials such as metal, wood, plastic, stone, etc.

[0003] In the existing desk top manufacturing process, the burrs on the surface and inside the holes to be polished usually need to be polished after processing, especially when drilling holes. However, the existing technology has many shortcomings in processing the burrs inside the holes, which are specifically manifested as follows: 1. For deeper holes to be polished, traditional polishing tools (such as sandpaper, manual scrapers, etc.) are difficult to fully enter the hole, resulting in some areas being unable to be effectively polished, especially for slender holes. Unpolished burrs may affect subsequent assembly or use, and may even cause parts to get stuck or damaged. Second, due to the limited space inside the hole to be polished, it is difficult for the operator to maintain a consistent polishing force and angle, which can easily lead to over-polishing in some areas and under-polishing in other areas, eventually forming an irregular surface. Uneven polishing not only affects the appearance, but may also reduce the accuracy of the hole to be polished and affect the fit with the accessories. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a burr grinding device for a desk top.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is: a desk top burr grinding device, comprising a base frame, a sliding frame is slidably provided on the top of the base frame, a support frame is fixedly installed on the base frame, a triangular slider is fixedly connected to the side wall of the sliding frame, the triangular slider is slidably connected to the support frame, a first driving mechanism is provided on the base frame for driving the sliding frame to move, a sliding groove is provided at the bottom of the sliding frame, a sliding seat is slidably connected inside the sliding groove, a second driving mechanism is provided on the sliding frame for driving the sliding seat to move, a limiting support mechanism is provided on the base frame, and the limiting support mechanism is used to limit and fix the desk top to be polished; A first motor is fixedly connected to the slide seat, a connecting rod is fixedly connected to the output shaft end of the first motor, a roller is fixedly connected to the end of the connecting rod away from the first motor, two limit grooves are symmetrically provided on the roller, limit blocks are fixedly installed inside the two limit grooves, limit plates are fixedly connected to the side walls of the two limit blocks, a rotating rod is fixedly connected between the two limit plates, a cylinder is fixedly connected to the outer wall of the rotating rod, a grinding mechanism is arranged on the outer wall of the cylinder, the grinding mechanism is used for rough grinding the holes to be polished opened on the desk board surface first, and after the rough grinding is completed, automatically switching to fine grinding of the holes to be polished opened on the desk board surface.

[0006] Preferably, the grinding mechanism includes two rotating disks, which are symmetrically connected to the outer wall of the rotating rod, and coarse grinding sandpaper and fine grinding sandpaper are fixedly connected between the two rotating disks. A limiting mechanism is provided between one of the rotating disks and the limiting plate at the corresponding position, which is used to maintain the coarse grinding sandpaper in contact with the inner wall of the hole to be polished in the initial state.

[0007] Preferably, the limiting mechanism includes an electric push rod and an arc-shaped groove, the fixed part of the electric push rod is fixedly connected to the limiting plate, the arc-shaped groove is opened on the outer wall of the rotating disk, and two limiting holes are opened inside the arc-shaped groove. In the initial state, the telescopic end of the electric push rod passes through the limiting plate and extends to the designated limiting hole.

[0008] Preferably, a water tank is fixedly installed between the two rotating disks, the water tank is located between the drum and the cylinder, and two groups of sprayers are fixedly connected on both sides of the water tank, and the number of sprayers in each group is multiple.

[0009] Preferably, an absorption groove is provided between the two limit grooves, and an absorption tube is detachably connected to the bottom of the drum, one end of the absorption tube is connected to the drum, and the other end of the absorption tube is fixedly connected to an axial wind seat, and two arc-shaped flow holes are provided on the outer wall of the axial wind seat, and one end of the axial wind seat away from the absorption tube is fixedly connected to a receiving plate, and a fan is fixedly installed on the side of the receiving plate away from the absorption tube, and the air inlet end of the fan is connected to the receiving plate through an air inlet pipe.

[0010] Preferably, a plurality of universal balls are rotatably connected to the top of the receiving tray, and the universal balls are in contact with the surface wall of the desk top.

[0011] Preferably, two support rods are rotatably connected to the upper and lower sides of the interior of the absorption groove, and drying cotton is fixedly connected between the two support rods. A switching mechanism is provided after the end of one of the support rods extends to the limit groove, which is used to limit and switch the position of the drying cotton.

[0012] Preferably, the switching mechanism includes a gear and a side plate, the gear is fixedly connected to the end of the support rod, the side plate is fixedly connected to the outer wall of the drum, the side of the side plate close to the gear is fixedly connected to an elastic telescopic rod, the telescopic end of the elastic telescopic rod is fixedly connected to a rack through a mounting plate, the rack is meshed with the gear, and the end of the rack close to the rotating disk is fixedly connected to a push rod, and the push rod is in conflict with the outer wall of the water tank.

[0013] Preferably, the limiting support mechanism includes a plurality of stretching rods and a hydraulic cylinder, the hydraulic cylinder is fixedly connected to the bottom of the base frame, and the telescopic end of the hydraulic cylinder passes through the base frame and is fixedly connected to a top plate, the stretching rods are fixedly connected to the top of the base frame, and the stretching end of each stretching rod is fixedly connected to a suction cup.

[0014] Preferably, the first driving mechanism includes a second motor, the second motor is fixedly connected to the base frame, the output shaft end of the second motor is fixedly connected to a first threaded rod, and the first threaded rod is threadedly connected to the triangular slider.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a grinding mechanism, during the rotation of the grinding mechanism, the hole to be polished is rotationally polished. The rotational polishing process is divided into two parts. During the initial polishing, the larger burrs and uneven parts inside the hole to be polished are quickly removed through rough polishing, which paves the way for subsequent fine polishing. After the rough polishing is completed, the grinding mechanism will automatically switch to fine polishing, and perform secondary polishing on the hole to be polished, which is beneficial to remove the fine burrs and scratches left over during the rough polishing process, and is beneficial to ensure that the interior of the hole to be polished is smooth and flawless, thereby improving the overall polishing quality.

[0016] Second, the present invention uses the sprayer to spray an appropriate amount of water mist into the hole to be polished intermittently or continuously during the polishing process. The water mist can effectively capture and settle the fine dust generated during the polishing process, which is helpful to reduce the dust flying in the air, keep the working environment clean, and reduce the risk of operators inhaling dust; the water mist not only helps to reduce dust, but also absorbs the heat generated by friction during the polishing process, reducing the uneven polishing caused by high temperature or dust interference. This helps to improve the polishing effect and ensure that the aperture surface is smooth and flawless.

[0017] 3. Through the provision of drying cotton, the present invention can effectively rotate and seal the adsorption groove during the process of switching from coarse grinding to fine grinding, which is conducive to ensuring that impurities are transported to the inside of the drum and adsorbed and collected; at the same time, the drying cotton can intercept dust and water mist during fine grinding to prevent them from adhering to the inner wall of the drum, reducing the difficulty of subsequent cleaning, keeping the inner wall of the drum clean, and ensuring the stability and efficiency of the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the grinding device of the present invention is shown in FIG. Figure 1 .

[0019] Figure 2 The overall structure of the grinding device of the present invention is shown in FIG. Figure 2 .

[0020] Figure 3 It is a structural schematic diagram of the connection between the sliding frame and the sliding seat of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the connection between the roller and the absorption tube of the present invention.

[0022] Figure 5 It is a schematic structural diagram of the connection between the absorption tube and the shaft wind seat of the present invention.

[0023] Figure 6 The structure of the present invention along the drum section is schematically shown. Figure 1 .

[0024] Figure 7 For the present invention Figure 6 A in the figure is an enlarged structural diagram.

[0025] Figure 8 The structure of the present invention along the drum section is schematically shown. Figure 2 .

[0026] Fig. 9 The structure of the present invention along the drum section is schematically shown. Figure 3 .

[0027] Fig.10 It is a schematic diagram of the structure of the present invention after further sectioning along the drum.

[0028] In the figure: 1, base frame; 2, sliding frame; 3, support frame; 4, triangular slider; 5, sliding groove; 6, sliding seat; 7, first motor; 8, connecting rod; 9, roller; 10, limit groove; 11, limit block; 12, limit plate; 13, rotating rod; 14, cylinder; 15, rotating disk; 16, coarse grinding sandpaper; 17, fine grinding sandpaper; 18, electric push rod; 19, arc groove; 20, limit hole; 21, water tank; 2 2. Sprayer; 23. Suction groove; 24. Suction tube; 25. Shaft wind seat; 26. Arc flow hole; 27. Receiver plate; 28. Fan; 29. ​​Universal ball; 30. Support rod; 31. Dry cotton; 32. Gear; 33. Side plate; 34. Elastic telescopic rod; 35. Rack; 36. Push rod; 37. Stretching rod; 38. Hydraulic cylinder; 39. Suction cup; 40. Push plate; 41. Second motor; 42. First threaded rod. DETAILED DESCRIPTION

[0029] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0030] Application scenario: In the existing desk panel manufacturing process, the burrs on the surface and inside the holes to be polished usually need to be polished after processing, especially when drilling is required. However, the existing technology has many shortcomings in processing the burrs inside the holes, which are specifically manifested as follows: 1. For deeper holes to be polished, traditional polishing tools (such as sandpaper, manual scrapers, etc.) are difficult to fully enter the hole, resulting in some areas being unable to be effectively polished, especially for slender holes. Unpolished burrs may affect subsequent assembly or use, and may even cause parts to get stuck or damaged. Second, due to the limited space inside the hole to be polished, it is difficult for the operator to maintain a consistent polishing force and angle, which can easily lead to over-polishing in some areas and under-polishing in other areas, eventually forming an irregular surface. Uneven polishing not only affects the appearance, but may also reduce the accuracy of the hole to be polished and affect the fit with the accessories.

[0031] like Figures 1 to 10 The burr grinding device of a desk top shown in the figure comprises a base frame 1, a sliding frame 2 is slidably provided on the top of the base frame 1, a support frame 3 is fixedly installed on the base frame 1, a triangular slider 4 is fixedly connected to the side wall of the sliding frame 2, the triangular slider 4 is slidably connected to the support frame 3, a first driving mechanism is provided on the base frame 1 for driving the sliding frame 2 to move, a sliding groove 5 is provided at the bottom of the sliding frame 2, a sliding seat 6 is slidably connected inside the sliding groove 5, a second driving mechanism is provided on the sliding frame 2 for driving the sliding seat 6 to move, and a limiting support mechanism is provided on the base frame 1, and the limiting support mechanism is used to limit and fix the desk top to be polished; A first motor 7 is fixedly connected to the slide seat 6, and a connecting rod 8 is fixedly connected to the output shaft end of the first motor 7. A roller 9 is fixedly connected to the end of the connecting rod 8 away from the first motor 7. Two limit grooves 10 are symmetrically provided on the roller 9. Limit blocks 11 are fixedly installed inside the two limit grooves 10. Limit plates 12 are fixedly connected to the side walls of the two limit blocks 11. A rotating rod 13 is fixedly connected between the two limit plates 12. A cylinder 14 is fixedly connected to the outer wall of the rotating rod 13. A grinding mechanism is arranged on the outer wall of the cylinder 14. The grinding mechanism is used for rough grinding the holes to be polished opened on the desk board surface first, and after the rough grinding is completed, it automatically switches to fine grinding the holes to be polished opened on the desk board surface.

[0032] It should be understood that in order to ensure that the grinding mechanism can accurately move to the position directly below the hole to be polished on the desk board to be polished, the operator needs to follow the following steps. First, place the desk board to be polished on the limit support mechanism, and fix it by the limit support mechanism to ensure that the subsequent grinding mechanism will not shift or shake the hole to be polished on the desk board during the grinding process; after the fixation is completed, start the first driving mechanism to drive the sliding frame 2 to move along a pre-set trajectory, and the movement of the sliding frame 2 eventually drives the grinding mechanism to move horizontally to the predetermined position; after the sliding frame 2 moves to the specified position, start the second driving mechanism to drive The movable slide 6 moves along the specified trajectory. When the slide 6 moves, the first motor 7 on the slide 6 also moves with it. The first motor 7 drives the roller 9 to move through the connecting rod 8. The roller 9 moves the grinding mechanism to the specified position with the help of the limit block 11, the limit plate 12 and other components, so as to adjust the longitudinal position of the grinding mechanism. The horizontal and longitudinal position adjustment of the grinding mechanism is achieved through the coordinated work of the first driving mechanism and the second driving mechanism, so as to ensure that the grinding mechanism can accurately move to the bottom of the hole to be polished. Subsequently, the limit support mechanism is controlled to push the desk top to move vertically upward, so that the hole to be polished contacts the grinding mechanism. After the hole to be polished contacts the polishing mechanism, the first motor 7 is controlled to start working, the first motor 7 drives the roller 9 to rotate through the connecting rod 8, the roller 9 drives the rotating rod 13 to rotate through the limit block 11 and the limit plate 12, the rotating rod 13 drives the polishing mechanism to rotate through the cylinder 14, and the hole to be polished will be rotationally polished during the rotation of the polishing mechanism. The rotational polishing process is divided into two parts. During the initial polishing, the larger burrs and uneven parts inside the hole to be polished are quickly removed through rough polishing, which lays the foundation for the subsequent fine polishing. After the rough polishing is completed, the polishing mechanism will automatically switch to fine polishing, and perform secondary polishing on the hole to be polished, which is beneficial to remove the fine burrs and scratches left over during the rough polishing process, and is beneficial to ensure that the inside of the hole to be polished is smooth and flawless, thereby improving the overall polishing quality; In summary, by designing the grinding mechanism to be able to flexibly enter the inside of the aperture to be polished, the problem that traditional grinding tools cannot penetrate into the hole for effective grinding due to size or shape limitations is solved. This design ensures that the grinding mechanism can cover all areas inside the aperture, which is conducive to avoiding missing unpolished parts, and uses the first motor 7 to apply a constant grinding force to ensure that the grinding mechanism always acts on the aperture surface with the same force during the entire grinding process; this constant force can prevent uneven grinding caused by uneven manual force applied by the operator, and improve the consistency and quality of grinding. Due to the constant grinding force and angle, the entire grinding process is more stable, and the uneven grinding caused by force or angle changes is reduced; this not only improves the smoothness of the internal surface of the hole to be polished, but also ensures the accuracy and functionality of the hole to be polished. Through the precise control of the first motor 7, the grinding mechanism can always maintain a consistent angle, ensuring that there will be no local over-grinding or under-grinding due to angle changes during the grinding process. This stable grinding angle helps to form a more uniform and smooth surface.

[0033] It should be noted that the second driving assembly includes existing components such as the third motor and the second threaded rod, and the second threaded rod is threadedly connected to the slide 6. The above has mature applications in various industries and will not be disclosed in detail here.

[0034] As a further embodiment of the present invention, the grinding mechanism includes two rotating disks 15, which are symmetrically connected to the outer wall of the rotating rod 13, and a coarse grinding sandpaper 16 and a fine grinding sandpaper 17 are fixedly connected between the two rotating disks 15. A limiting mechanism is provided between one of the rotating disks 15 and the limiting plate 12 at the corresponding position, which is used to maintain the coarse grinding sandpaper 16 in contact with the inner wall of the hole to be polished in the initial state.

[0035] It should be understood that the coarse sandpaper 16 and the fine sandpaper 17 are in contact with the outer wall of the cylinder 14. Before the grinding begins, the grinding mechanism is fixed by a limiting mechanism to prevent it from unnecessary movement during the rotation process. After the rotating rod 13 is started, it drives the rotating disk 15 to rotate, and the rotating disk 15 drives the coarse sandpaper 16 to rotate. The coarse sandpaper 16 contacts the inner wall of the hole to be grinded during the rotation process to perform rapid preliminary grinding. The main purpose of this stage is to remove larger burrs and uneven parts to prepare for subsequent fine grinding. The rotating disk 15 maintains a fixed position under the constraint of the limiting mechanism to ensure that the coarse sandpaper 16 can evenly cover the inner wall of the hole to be grinded. Through high-speed rotation, the coarse sandpaper 16 can efficiently remove larger defects inside the hole to be grinded, and preliminarily improve the shape and surface quality of the hole to be grinded. After a period of coarse grinding, the automatic control limit mechanism releases the restriction on the rotating disk 15. At this time, due to the friction between the coarse grinding sandpaper 16 and the inner wall of the hole to be grinded, the rotating disk 15 starts to rotate freely; after the rotating disk 15 rotates a certain angle, the coarse grinding sandpaper 16 is switched to fine grinding sandpaper 17; this switching process is conducive to ensuring a seamless transition from coarse grinding to fine grinding, and avoiding the complexity of manual intervention; after the rotating disk 15 rotates to the specified angle, the limiting mechanism fixes it again, which is conducive to ensuring that the fine grinding sandpaper 17 can work stably; as the first motor 7 continues to run, the fine grinding sandpaper 17 begins to further finely grind the inner wall of the hole to be grinded that has been subjected to the coarse grinding treatment; the main task of the fine grinding sandpaper 17 is to remove the fine burrs and scratches left over during the coarse grinding process, which is conducive to ensuring that the surface of the hole to be grinded is smooth and flawless, and meets the final quality standards.

[0036] As a further implementation scheme of the present invention, the limiting mechanism includes an electric push rod 18 and an arc groove 19. The fixed part of the electric push rod 18 is fixedly connected to the limiting plate 12. The arc groove 19 is opened on the outer wall of the rotating disk 15, and two limiting holes 20 are opened inside the arc groove 19. In the initial state, the telescopic end of the electric push rod 18 passes through the limiting plate 12 and extends to the designated limiting hole 20.

[0037] It should be understood that during the switching process, the electric push rod 18 is controlled to start contraction, so that the telescopic end of the electric push rod 18 is pulled out from the limiting hole 20 at the corresponding position, and at this time, the telescopic end of the electric push rod 18 is still located inside the arc groove 19. Since the length of the arc groove 19 is limited, even during the switching process, the telescopic end of the electric push rod 18 can still provide a certain limiting effect in the arc groove 19, which helps to control the rotation amplitude of the rotating disk 15 to prevent it from over-rotating, ensuring that the process of switching from the coarse sandpaper 16 to the fine sandpaper 17 is carried out smoothly, and the coarse sandpaper 16 is completed. After switching from 16 to fine sandpaper 17, the electric push rod 18 is controlled to start again to push its telescopic end into the next limit hole 20; this is beneficial to ensuring the precise position of the rotating disk 15 and preventing it from continuing to rotate, which is beneficial to avoiding the situation where the limit hole 20 is missed due to excessive rotation, and the fine sandpaper 17 is rotated to the specified position. Through the cooperation of the electric push rod 18 and the arc groove 19, even during the switching process of the sandpaper, the rotating disk 15 will not miss the limit hole 20 due to inertia or other factors, which is beneficial to ensuring the stability and accuracy of the entire grinding process.

[0038] As a further embodiment of the present invention, a water tank 21 is fixedly installed between the two rotating disks 15, and the water tank 21 is located between the drum 9 and the cylinder 14. Two groups of sprayers 22 are fixedly connected on both sides of the water tank 21, and the number of each group of sprayers 22 is multiple.

[0039] Specifically, in the above-mentioned embodiment, it is explained that the hole to be polished is polished by switching from coarse sandpaper 16 to fine sandpaper 17, which helps to ensure the accuracy of the hole to be polished. However, in actual application, debris and dust will be generated in the process of polishing the hole to be polished. If it is not suppressed, firstly, it is easy to cause dust flying, and secondly, high temperature will be generated in the polishing process, which may easily lead to uneven polishing. Therefore, the present invention sets a sprayer 22. During the polishing process, the sprayer 22 will intermittently or continuously spray an appropriate amount of water mist into the hole to be polished. The water mist can effectively capture and settle the fine dust generated in the polishing process, which is beneficial to reduce the dust flying in the air, keep the working environment clean, and reduce the risk of dust inhalation by operators. The water mist not only helps to reduce dust, but also absorbs the heat generated by friction during the polishing process. This can prevent the material from softening, deforming or cracking due to overheating. Desk tops are generally made of wood or plastic. However, for temperature-sensitive materials such as wood and plastic, the cooling effect of water mist is particularly important to ensure the quality of grinding and the integrity of the material. Through the cooling and dust reduction effect of water mist, the contact between the grinding tool and the material surface is more stable, reducing the uneven grinding caused by high temperature or dust interference. This helps to improve the grinding effect and ensure that the aperture surface is smooth and flawless.

[0040] As a further implementation scheme of the present invention, an absorption groove 23 is opened between the two limit grooves 10, and the bottom of the drum 9 is detachably connected with an absorption tube 24, one end of the absorption tube 24 is connected to the drum 9, and the other end of the absorption tube 24 is fixedly connected to an axial wind seat 25, and two arc-shaped flow holes 26 are opened on the outer wall of the axial wind seat 25, and one end of the axial wind seat 25 away from the absorption tube 24 is fixedly connected to a receiving plate 27, and a fan 28 is fixedly installed on the side of the receiving plate 27 away from the absorption tube 24, and the air inlet end of the fan 28 is connected to the receiving plate 27 through an air inlet pipe.

[0041] As a further embodiment of the present invention, a plurality of universal balls 29 are rotatably connected to the top of the receiving tray 27, and the universal balls 29 are in contact with the surface wall of the desk top.

[0042] It should be understood that in the above embodiment, it is described that the sprayer 22 sprays mist to reduce temperature and suppress dust. However, the dust and debris generated in the actual grinding process are easy to accumulate inside the hole to be grinded after adhering to a certain amount of water, especially in narrow or deep holes to be grinded. It is very difficult to clean up these debris, and the accumulated debris not only affects the grinding effect, but also may become loose during subsequent use, causing safety hazards or noise problems. Therefore, in the initial state, the suction pipe 24 is installed to the bottom of the drum 9, and a threaded connection or other connection method can be used. The connection method of the body is not disclosed in detail here to ensure the firmness and sealing between the absorption tube 24 and the roller 9 to prevent air leakage; after installation, the universal ball 29 on the receiving plate 27 will contact the desk top, so that the receiving plate 27 is accurately located directly below the hole to be polished; the design of the universal ball 29 enables the receiving plate 27 to move freely when the roller 9 rotates, and it converts static friction into rolling friction, reducing the friction of the receiving plate 27 on the desk top during rotation, thereby helping to avoid unnecessary scratches or other damage to the desk top; At the same time, when the sprayer 22 starts working, the fan 28 is started. The fan 28 discharges the air inside the receiving tray 27 to the outside through the air inlet pipe, and at the same time discharges the air inside the drum 9 to the outside through the arc-shaped flow hole 26 and the absorption tube 24. This airflow design forms a negative pressure environment, so that the absorption groove 23 can effectively absorb and collect the debris, dust and water mist generated during the grinding process. Through the continuous operation of the fan 28, the dust and debris generated during the grinding process will not accumulate inside the hole to be ground after adhering to a certain amount of water, but will be sucked into the absorption groove 23 for centralized collection; this not only keeps the inside of the aperture clean, but also helps to avoid uneven grinding or aperture blockage caused by debris accumulation. The dust and debris pass through the drum 9, the absorption tube 24, and the arc-shaped flow hole 26 on the shaft wind seat 25, and finally enter the receiving tray 27 for collection, which is conducive to ensuring the effective collection of debris and dust, avoiding their scattering during the grinding process, and keeping the working environment clean.

[0043] As a further implementation scheme of the present invention, two support rods 30 are rotatably connected to the upper and lower sides of the interior of the absorption groove 23, and a drying cotton 31 is fixedly connected between the two support rods 30. After the end of one of the support rods 30 extends to the limit groove 10, a switching mechanism is provided for limiting the position of the drying cotton 31.

[0044] As a further embodiment of the present invention, the switching mechanism includes a gear 32 and a side plate 33. The gear 32 is fixedly connected to the end of the support rod 30, and the side plate 33 is fixedly connected to the outer wall of the drum 9. The side plate 33 close to the gear 32 is fixedly connected to an elastic telescopic rod 34. The telescopic end of the elastic telescopic rod 34 is fixedly connected to a rack 35 through a mounting plate. The rack 35 is meshed with the gear 32. The end of the rack 35 close to the rotating disk 15 is fixedly connected to a push rod 36, and the push rod 36 conflicts with the outer wall of the water tank 21.

[0045] Specifically, in the above example, it is explained that a negative pressure environment is constructed through the fan 28 and the airflow design, so that the adsorption tank can effectively capture and collect the debris, dust and water mist generated during the grinding process. This negative pressure environment ensures that these substances will not fly in the air, but are concentrated and guided into the adsorption tank for processing. Under the action of negative pressure, larger impurities such as larger debris or particles can smoothly enter the adsorption tank under the combined action of gravity and adsorption force and be effectively collected; this method ensures that these larger substances will not remain inside the drum 9, keeping the drum 9 clean. However, in In actual operation, some fine dust will mix with the water mist and adhere to the inner wall of the drum 9; this not only increases the difficulty of subsequent cleaning, but may also cause the following problems: First, the fine dust adhering to the inner wall of the drum 9 is difficult to remove by conventional cleaning methods, requiring additional manual intervention, increasing maintenance costs; second, as the dust gradually accumulates, the surface of the inner wall of the drum 9 becomes uneven, which may hinder the smooth flow of airflow, reduce the adsorption efficiency of the adsorption tank, and further affect the overall polishing effect; therefore, a drying cotton 31 is provided in the adsorption tank, and its shape matches the adsorption tank, It is beneficial to ensure that the drying cotton 31 can fit closely to the inner wall of the adsorption tank, and the concave surface of the drying cotton 31 faces the direction of the drum 9, so as to better capture the water mist and impurities flowing out of the drum 9. In the initial state, since there is a gap between the edge of the drying cotton 31 and the adsorption tank, larger impurities can smoothly enter the inside of the drum 9 through these gaps, which is beneficial to avoid that the drying cotton 31 loses the effect of adsorbing water mist due to excessive accumulation of impurities, thereby ensuring that the drying cotton 31 can continue to work effectively and will not affect the adsorption due to blockage; when the adsorption is started, the coarse grinding sandpaper 16 is working Large impurities will be generated during the process. These large impurities are first intercepted by the drying cotton 31 to prevent them from directly entering the inside of the drum 9. At the same time, the absorption of water mist by the drying cotton 31 can significantly reduce the situation where water mist enters the inner wall of the drum 9. This not only helps to keep the inner wall of the drum 9 clean, but also prevents the water mist from mixing with fine dust and adhering to the inner wall of the drum 9, reducing the difficulty of subsequent cleaning and preparing for subsequent operations such as fine grinding or equipment maintenance. The design of the drying cotton 31 not only improves the adsorption efficiency, but also extends the service life of the equipment and reduces the maintenance frequency. In the process of switching from coarse grinding to fine grinding, the rotating disk 15 will drive the water tank 21 to rotate during the rotation process. After the water tank 21 rotates, it will be separated from the top rod 36. After the top rod 36 is separated from the water tank 21, the elastic telescopic rod 34 will pull the rack 35 to move through the mounting plate, and the rack 35 will drive the gear 32 to rotate. The gear 32 drives the dry cotton 31 to rotate through the support rod 30, so that its concave surface faces inward and blocks the adsorption groove. This rotation action causes the impurities intercepted in the concave surface of the dry cotton 31 to be transported to the inside of the drum 9 and concentrated under the action of the adsorption force. Collection, as the dry cotton 31 rotates a certain angle and completes the sealing of the adsorption groove, the gap between the dry cotton 31 and the adsorption groove is completely blocked, which is conducive to ensuring that when switching to the fine sanding sandpaper 17, the dry cotton 31 can effectively intercept dust and water mist to prevent them from entering the inner wall of the drum 9. Due to the sealing effect of the dry cotton 31, dust and water mist will be intercepted and adhered to the dry cotton 31 during the fine sanding process, and will not follow the water mist to adhere to the inner wall of the drum 9, which not only reduces the difficulty of subsequent cleaning, but also keeps the inner wall of the drum 9 clean, which is conducive to ensuring the sanding effect; In summary, through the coordinated work of the rotating disk 15, the water tank 21, the elastic telescopic rod 34, the rack 35, the gear 32 and the drying cotton 31, in the process of switching from coarse grinding to fine grinding, the drying cotton 31 can effectively rotate and seal the adsorption groove, which is conducive to ensuring that impurities are transported to the inside of the drum 9 and adsorbed and collected; at the same time, the drying cotton 31 can intercept dust and water mist during fine grinding to prevent them from adhering to the inner wall of the drum 9, reducing the difficulty of subsequent cleaning, keeping the inner wall of the drum 9 clean, and ensuring the stability and efficiency of the grinding effect.

[0046] As a further implementation scheme of the present invention, the limiting support mechanism includes a plurality of stretching rods 37 and a hydraulic cylinder 38. The hydraulic cylinder 38 is fixedly connected to the bottom of the base frame 1, and the telescopic end of the hydraulic cylinder 38 passes through the base frame 1 and is fixedly connected to a top plate 40. The stretching rods 37 are all fixedly connected to the top of the base frame 1, and the stretching end of each stretching rod 37 is fixedly connected to a suction cup 39.

[0047] It should be understood that the desk top is placed on the suction cup 39, and the desk top is positioned through the adsorption effect of the suction cup 39. Subsequently, the hydraulic rod is controlled to start pushing out, the hydraulic rod pushes the top plate 40 to move, and the top plate 40 pushes the desk top to move, which helps to move the desk top to the specified position.

[0048] It should be noted that the stretching rod 37 is composed of a sliding tube and a sliding rod, and the sliding rod is slidably connected to the inside of the sliding tube. Then, as the top plate 40 pushes the desk top to move, the desk top will push the stretching rod 37 to move to adapt to the rising moving trajectory.

[0049] As a further embodiment of the present invention, the first driving mechanism includes a second motor 41 , which is fixedly connected to the base frame 1 , and the output shaft end of the second motor 41 is fixedly connected to a first threaded rod 42 , which is threadedly connected to the triangular slider 4 .

[0050] It should be understood that by controlling the second motor 41 to rotate, the first threaded rod 42 is driven to rotate, thereby driving the triangular slider 4 to move, which is beneficial to adjusting the position.

[0051] Working principle of the present invention: By designing the grinding mechanism to be able to flexibly enter the inside of the aperture to be polished, the problem that traditional grinding tools cannot penetrate into the hole for effective grinding due to size or shape limitations is solved. This design ensures that the grinding mechanism can cover all areas inside the aperture, which is conducive to avoiding missing unpolished parts, and uses the first motor 7 to apply a constant grinding force to ensure that the grinding mechanism always acts on the aperture surface with the same force during the entire grinding process; this constant force can prevent uneven grinding caused by uneven manual force applied by the operator, and improve the consistency and quality of grinding. Due to the constant grinding force and angle, the entire grinding process is more stable, and the uneven grinding caused by force or angle changes is reduced; this not only improves the smoothness of the internal surface of the hole to be polished, but also ensures the accuracy and functionality of the hole to be polished. Through the precise control of the first motor 7, the grinding mechanism can always maintain a consistent angle, ensuring that there will be no local over-grinding or under-grinding due to angle changes during the grinding process. This stable grinding angle helps to form a more uniform and smooth surface.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A burr grinding device for a desk top, comprising a base frame (1), a sliding frame (2) is slidably provided on the top of the base frame (1), a support frame (3) is fixedly installed on the base frame (1), a triangular slider (4) is fixedly connected to the side wall of the sliding frame (2), the triangular slider (4) is slidably connected to the support frame (3), a first driving mechanism is provided on the base frame (1) for driving the sliding frame (2) to move, a sliding groove (5) is provided at the bottom of the sliding frame (2), a sliding seat (6) is slidably connected inside the sliding groove (5), and a second driving mechanism is provided on the sliding frame (2) for driving the sliding seat (6) to move, characterized in that: The base frame (1) is provided with a limit support mechanism, and the limit support mechanism is used to limit and fix the desk top to be polished; The slide seat (6) is fixedly connected to a first motor (7), an output shaft end of the first motor (7) is fixedly connected to a connecting rod (8), an end of the connecting rod (8) away from the first motor (7) is fixedly connected to a roller (9), two limit grooves (10) are symmetrically provided on the roller (9), a limit block (11) is fixedly installed inside the two limit grooves (10), a limit plate (12) is fixedly connected to the side walls of the two limit blocks (11), a rotating rod (13) is fixedly connected between the two limit plates (12), a cylinder (14) is fixedly connected to the outer wall of the rotating rod (13), and a grinding mechanism is arranged on the outer wall of the cylinder (14), the grinding mechanism is used to perform rough grinding on the hole to be polished opened on the desk board surface first, and after the rough grinding is completed, automatically switch to fine grinding on the hole to be polished opened on the desk board surface.

2. The desk top burr grinding device according to claim 1, characterized in that: The grinding mechanism comprises two rotating disks (15), the two rotating disks (15) are symmetrically connected to the outer wall of the rotating rod (13), and a coarse grinding sandpaper (16) and a fine grinding sandpaper (17) are fixedly connected between the two rotating disks (15). A limiting mechanism is provided between one of the rotating disks (15) and the limiting plate (12) at a corresponding position, and is used to maintain the coarse grinding sandpaper (16) in contact with the inner wall of the hole to be ground in an initial state.

3. The burr removal device for a desk top according to claim 2, characterized in that: The limiting mechanism comprises an electric push rod (18) and an arc-shaped groove (19); a fixed portion of the electric push rod (18) is fixedly connected to the limiting plate (12); the arc-shaped groove (19) is formed on the outer wall of the rotating disk (15); and two limiting holes (20) are formed inside the arc-shaped groove (19); in an initial state, the telescopic end of the electric push rod (18) passes through the limiting plate (12) and then extends to the inside of the designated limiting hole (20).

4. The burr removal device for a desk top according to claim 2, characterized in that: A water storage tank (21) is fixedly installed between the two rotating disks (15), and the water storage tank (21) is located between the drum (9) and the cylinder (14). Two groups of sprayers (22) are fixedly connected on both sides of the water storage tank (21), and each group of sprayers (22) has a plurality of sprayers.

5. The desk top burr grinding device according to claim 4, characterized in that: An absorption groove (23) is provided between the two limiting grooves (10); a bottom of the drum (9) is detachably connected to a absorption tube (24); one end of the absorption tube (24) is connected to the drum (9); the other end of the absorption tube (24) is fixedly connected to an axial wind seat (25); two arc-shaped flow holes (26) are provided on the outer wall of the axial wind seat (25); one end of the axial wind seat (25) away from the absorption tube (24) is fixedly connected to a receiving plate (27); a fan (28) is fixedly installed on a side of the receiving plate (27) away from the absorption tube (24); an air inlet end of the fan (28) is connected to the receiving plate (27) via an air inlet pipe.

6. The desk top burr grinding device according to claim 5, characterized in that: The top of the receiving plate (27) is rotatably connected to a plurality of universal balls (29), and the universal balls (29) are in contact with the surface wall of the desk top.

7. The desk top burr grinding device according to claim 6, characterized in that: Two support rods (30) are rotatably connected to the upper and lower sides of the interior of the absorption groove (23), and a drying cotton (31) is fixedly connected between the two support rods (30). A switching mechanism is provided after the end of one of the support rods (30) extends to the limiting groove (10) for limiting and switching the position of the drying cotton (31).

8. The desk top burr grinding device according to claim 7, characterized in that: The switching mechanism comprises a gear (32) and a side plate (33); the gear (32) is fixedly connected to the end of the support rod (30); the side plate (33) is fixedly connected to the outer wall of the drum (9); a side of the side plate (33) close to the gear (32) is fixedly connected to an elastic telescopic rod (34); the telescopic end of the elastic telescopic rod (34) is fixedly connected to a rack (35) via a mounting plate; the rack (35) is meshed with the gear (32); an end of the rack (35) close to the rotating disk (15) is fixedly connected to a push rod (36); the push rod (36) contacts the outer wall of the water storage tank (21).

9. The desk top burr grinding device according to claim 1, characterized in that: The position-limiting support mechanism comprises a plurality of stretching rods (37) and a hydraulic cylinder (38), wherein the hydraulic cylinder (38) is fixedly connected to the bottom of the base frame (1), and the telescopic end of the hydraulic cylinder (38) passes through the base frame (1) and is fixedly connected to a top plate (40), and the stretching rods (37) are all fixedly connected to the top of the base frame (1), and the telescopic end of the stretching rod (37) is fixedly connected to a suction cup (39), and the stretching end of each stretching rod (37) is fixedly connected to a suction cup (39).

10. The desk top burr grinding device according to claim 1, characterized in that: The first driving mechanism comprises a second motor (41), the second motor (41) being fixedly connected to the base frame (1), the output shaft end of the second motor (41) being fixedly connected to a first threaded rod (42), and the first threaded rod (42) being threadedly connected to the triangular slider (4).

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