Automatic device convenient for replacing abrasive paper

Abstract

The utility model relates to the technical field of automation devices, and discloses an automation device convenient for replacing abrasive paper, which comprises a device frame and a mounting frame, and the mounting frame is fixed at the top end of the device frame. According to the automatic device capable of conveniently replacing the abrasive paper, when the abrasive paper disc used for grinding is replaced, the abrasive paper disc can be detached and separated from the bottom end of the mounting disc after the locking rods arranged on the two sides of the top end of the mounting disc are screwed out of the threaded holes in the top ends of the positioning blocks correspondingly, and when the abrasive paper disc is replaced with a new abrasive paper disc, the abrasive paper disc can be replaced conveniently. The two sets of positioning blocks are clamped into the positioning grooves for positioning firstly, then the locking rods are screwed into the threaded holes, then the abrasive paper disc can be fixedly installed at the bottom of the installation disc to complete replacement, the locking direction of the locking rods is consistent with the rotating direction of the installation disc, threaded locking disassembly and assembly can reduce and avoid displacement and falling when the installation disc is rotated for grinding, and the abrasive paper disc is convenient to use. The problem that grinding abrasive paper in a device is inconvenient to replace is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automation devices, and particularly relates to an automation device convenient for replacing sandpaper. Background Technique

[0002] An automation device refers to an automated device that uses automation technology to achieve various operations in industrial production processes. It is widely used in some machining processes. Among them, when processing burrs generated on the external surface of some metal workpieces during production, an automated grinding and processing device is required.

[0003] However, during the use of the automation device, the replacement method of the internal grinding sandpaper mostly adopts the method of pasting the rough surface and the spiny surface for replacement, and is fixed by pasting after replacement. During high-speed grinding, the grinding sandpaper is prone to displacement, and is also prone to dangerous situations such as being thrown out when the paste is not tight enough, which has deficiencies and is not convenient for replacing the grinding sandpaper inside the device.

[0004] Now, a new type of automation device convenient for replacing sandpaper is proposed to solve the above deficiencies. Content of the Utility Model

[0005] The purpose of the utility model is to provide an automation device convenient for replacing sandpaper, so as to solve the problem of inconvenient replacement of the grinding sandpaper inside the device proposed in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an automation device convenient for replacing sandpaper, including a device frame and a mounting frame. The mounting frame is fixed at the top end of the device frame, and a drive motor assembly is arranged inside the mounting frame. A replacement structure convenient for replacing the grinding sandpaper is arranged at the bottom end of the drive motor assembly;

[0007] The replacement structure includes a mounting disc, a sandpaper disc, a locking rod, a positioning groove, a positioning block and a threaded hole. The output end at the bottom of the drive motor assembly is fixedly installed with a mounting disc, and a sandpaper disc is arranged at the bottom end of the mounting disc. Positioning blocks are respectively fixed on both sides of the top end of the sandpaper disc. Positioning grooves are respectively opened in the inner parts of both sides at the bottom end of the mounting disc. Locking rods are respectively arranged on both sides of the top end of the mounting disc. Threaded holes for mating installation with the locking rods are opened in the inner parts of the top ends of the positioning blocks.

[0008] Furthermore, the bottom end of the locking rod penetrates through the inside of the top end of the mounting disc. External threads are arranged on the outer part of the locking rod, and a rubber washer is sleeved on the top end of the outer part of the locking rod.

[0009] Preferably, a suction hood is fixed to the rear end inside the mounting frame, and a filter screen is horizontally installed and fixed to the front end of the suction hood. A fixed box is installed and fixed to the bottom of the rear end of the mounting frame, and a slot is provided inside the fixed box. The right side of the slot penetrates through the inside of the right side of the fixed box. An inner frame is inserted into the slot, and a filter element is fixed inside the inner frame. Connecting pipes are respectively fixed to both sides and the middle position at the top end of the fixed box, and the front ends of the connecting pipes penetrate through the inside of the rear end of the mounting frame and are fixedly connected to the rear end of the suction hood. A machine shell is fixed to the bottom of the rear end of the mounting frame, and negative pressure exhaust fans are respectively fixed to both sides at the top end inside the machine shell. Fixed pipes are respectively fixed to both sides at the top end of the machine shell.

[0010] Furthermore, the inside of the suction hood is communicated with the inside of the connecting pipe, the inside of the connecting pipe is communicated with the inside of the fixed box, the top end of the fixed pipe is fixedly connected to the bottom end of the fixed box, and the fixed box is communicated with the inside of the machine shell through the fixed pipe.

[0011] Preferably, an operating table is fixed to the bottom end inside the mounting frame. Clamping plates are provided on both sides at the top end of the operating table, and connecting blocks are fixed to the bottom ends of the clamping plates. Sliding grooves are formed inside the top end of the operating table, and sliders are respectively provided on both sides inside the sliding grooves. Hexagon socket head cap screws penetrate through the inside of the clamping plates, and screw holes are formed inside the top ends of the sliders.

[0012] Furthermore, both sides of the sliding groove penetrate through the inside of both sides of the operating table, and the bottom end of the hexagon socket head cap screw penetrates through the inside of the connecting block and is rotatably connected in the screw hole.

[0013] Preferably, a mounting seat is provided at the top end inside the mounting frame. A one-way lead screw is horizontally movably connected inside the mounting seat, and a threaded sleeve is threadedly connected to the outside of the one-way lead screw. The bottom end of the threaded sleeve penetrates through the inside of the bottom end of the mounting seat and is fixedly connected to the top end of the drive motor assembly. A reduction motor is installed and fixed to the right side of the mounting seat, and the output shaft of the reduction motor is fixedly connected to the right side of the one-way lead screw.

[0014] Preferably, a hydraulic cylinder is fixed to the middle position at the top end of the mounting frame. The output end at the bottom of the hydraulic cylinder penetrates through the inside of the top end of the mounting frame and is fixedly connected to the top end of the mounting seat. Guide rods are respectively vertically installed and fixed on both sides at the top end of the mounting seat, and the top ends of the guide rods penetrate through the inside of the top end of the mounting frame.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: This automated device for facilitating the replacement of sandpaper not only realizes the convenience of replacing the abrasive sandpaper inside the device, realizes the convenience of multi-point dust removal during the grinding process, but also realizes the convenience of quickly fixing the workpiece.

[0016] (1) By providing an installation frame, a driving motor assembly, an installation disc, a sandpaper disc, a locking rod, a positioning groove, a positioning block and a threaded hole, during the use of the device, after fixing the workpiece on the top of the operating table, the driving motor assembly can be controlled to start, driving the installation disc and the sandpaper disc to rotate, and the sandpaper disc is used to assist in grinding some burrs and protrusions on the surface of the workpiece. When replacing the sandpaper disc used for grinding, the locking rods provided on both sides of the top of the installation disc can be respectively screwed out from the threaded holes inside the top of the positioning block, and then the sandpaper disc can be disassembled and separated from the bottom of the installation disc. When replacing with a new sandpaper disc, first insert the two groups of positioning blocks into the positioning groove for positioning, and then screw the locking rods into the threaded holes, and the sandpaper disc can be fixedly installed at the bottom of the installation disc to complete the replacement. The tightening direction of the locking rod is the same as the rotation direction of the installation disc, and the threaded locking and disassembly can reduce and avoid the displacement and dropping of the installation disc during rotation and grinding;

[0017] (2) By providing an installation frame, a suction hood, a filter screen, a connecting pipe, a fixed box, a slot, an inner frame, a filter element, a casing, a negative pressure exhaust fan and a fixed pipe, during the grinding process of the workpiece by the device, the negative pressure exhaust fan can be controlled to start for suction at the same time, generating negative pressure inside the suction hood, and some dust generated during the grinding process can be sucked and collected. Through the three connecting pipes fixed at the rear end of the suction hood, multi-point suction can be carried out inside the installation frame. After the dust is sucked into the suction hood and introduced into the fixed box through the connecting pipe, the solid dust particles can be filtered and intercepted by the filter element, and the filtered air is then exported by the negative pressure exhaust fan, reducing the dust dispersion and pollution during the grinding process;

[0018] (3) By providing an operating table, clamping plates, hexagon socket head cap screws, connecting blocks, sliding grooves, sliders and threaded holes, when using the device to grind the workpiece, place the workpiece at the middle position on the top of the operating table. On both sides of the top of the operating table, the provided clamping plates can be respectively pushed inward until they abut against both sides of the workpiece, and then the hexagon socket head cap screws can be respectively screwed down to fix the positions of the clamping plates. The two clamping plates that can be adjusted left and right are convenient for clamping and fixing workpieces of different sizes. Description of the Drawings

[0019] Figure 1 It is a front view sectional structure schematic diagram of the present utility model;

[0020] Figure 2 It is an enlarged front view partial sectional structure schematic diagram of the installation disc of the present utility model;

[0021] Figure 3 It is a side view structure schematic diagram of the fixed box of the present utility model;

[0022] Figure 4 It is an enlarged side view structure schematic diagram of the sliding groove of the present utility model.

[0023] In the figure: 1, device frame; 2, mounting bracket; 3, operating table; 4, clamping plate; 5, suction hood; 6, drive motor assembly; 7, mounting seat; 8, guide rod; 9, hydraulic cylinder; 10, one-way lead screw; 11, reduction motor; 12, threaded sleeve; 13, mounting disc; 14, sandpaper disc; 15, locking rod; 16, positioning groove; 17, positioning block; 18, threaded hole; 19, filter screen; 20, connecting pipe; 21, fixed box; 22, slot; 23, inner frame; 24, filter element; 25, machine shell; 26, negative pressure exhaust fan; 27, fixed pipe; 28, hexagon socket head bolt; 29, connecting block; 30, sliding groove; 31, slider; 32, screw hole. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1: Please refer to Figures 1-4 , an automated device for facilitating the replacement of sandpaper, including a device frame 1 and a mounting bracket 2. A mounting bracket 2 is fixed to the top end of the device frame 1, and a drive motor assembly 6 is arranged inside the mounting bracket 2. A replacement structure for facilitating the replacement of the grinding sandpaper is arranged at the bottom end of the drive motor assembly 6;

[0026] The replacement structure includes a mounting disc 13, a sandpaper disc 14, a locking rod 15, a positioning groove 16, a positioning block 17, and a threaded hole 18. The output end at the bottom of the drive motor assembly 6 is fixedly installed with a mounting disc 13, and a sandpaper disc 14 is arranged at the bottom end of the mounting disc 13. Positioning blocks 17 are respectively fixed on both sides of the top end of the sandpaper disc 14, positioning grooves 16 are respectively opened in the inner parts of both sides at the bottom end of the mounting disc 13, locking rods 15 are respectively arranged on both sides of the top end of the mounting disc 13, threaded holes 18 for fitting and installing with the locking rods 15 are opened in the inner parts of the top ends of the positioning blocks 17, the bottom ends of the locking rods 15 penetrate through the inner parts of the top end of the mounting disc 13, external threads are arranged on the outer parts of the locking rods 15, and rubber washers are sleeved on the top ends of the outer parts of the locking rods 15;

[0027] Specifically, as shown in Figure 1 and Figure 2As shown in the figure, when replacing the sandpaper disc 14 used for grinding, the locking rods 15 provided on both sides of the top end of the mounting disc 13 can be respectively screwed out from the threaded holes 18 inside the top ends of the positioning blocks 17, and then the sandpaper disc 14 can be disassembled and separated from the bottom end of the mounting disc 13. When replacing with a new sandpaper disc 14, first snap the two groups of positioning blocks 17 into the inside of the positioning grooves 16 for positioning, and then screw the locking rods 15 into the threaded holes 18, and the sandpaper disc 14 can be fixedly installed at the bottom of the mounting disc 13 to complete the replacement. The locking direction of the locking rods 15 is consistent with the rotation direction of the mounting disc 13. The threaded locking for disassembly and assembly can reduce and avoid the displacement and dropping of the mounting disc 13 during rotation and grinding.

[0028] Embodiment 2: A suction hood 5 is fixedly installed at the rear end inside the mounting frame 2, and a filter screen 19 is horizontally installed and fixed at the front end of the suction hood 5. A fixed box 21 is installed and fixed at the bottom of the rear end of the mounting frame 2, and a slot 22 is provided inside the fixed box 21. The right side of the slot 22 penetrates through the inside of the right side of the fixed box 21. An inner frame 23 is inserted into the slot 22, and a filter element 24 is fixed inside the inner frame 23. Connecting pipes 20 are respectively fixed at both sides and the middle position at the top end of the fixed box 21, and the front ends of the connecting pipes 20 penetrate through the inside of the rear end of the mounting frame 2 and are fixedly connected to the rear end of the suction hood 5. A machine shell 25 is fixed at the bottom of the rear end of the mounting frame 2, and negative pressure exhaust fans 26 are respectively fixed at both sides of the top end inside the machine shell 25. Fixed pipes 27 are respectively fixed at both sides of the top end of the machine shell 25. The inside of the suction hood 5 is communicated with the inside of the connecting pipe 20, the inside of the connecting pipe 20 is communicated with the inside of the fixed box 21, the top end of the fixed pipe 27 is fixedly connected to the bottom end of the fixed box 21, and the fixed box 21 is communicated with the inside of the machine shell 25 through the fixed pipe 27;

[0029] Specifically, as Figure 1 and Figure 3 shown, during the grinding process, the negative pressure exhaust fans 26 can be controlled to start exhausting air simultaneously, and negative pressure can be generated inside the suction hood 5, so as to suck and collect some dust generated during the grinding process. Through the three groups of connecting pipes 20 fixed at the rear end of the suction hood 5, multi-point suction can be carried out inside the mounting frame 2. After the dust is sucked into the suction hood 5 and introduced into the fixed box 21 through the connecting pipe 20, the solid dust particles can be filtered and intercepted by the filter element 24, and the filtered air is then exported by the negative pressure exhaust fans 26.

[0030] Embodiment 3: An operating table 3 is fixed at the bottom end inside the mounting frame 2. On both sides of the top end of the operating table 3, there are clamping plates 4, and a connecting block 29 is fixed at the bottom end of the clamping plate 4. Inside the top end of the operating table 3, there are sliding grooves 30, and on both sides inside the sliding grooves 30, there are sliding blocks 31 respectively. An internal hexagonal bolt 28 is arranged through the inside of the clamping plate 4. Inside the top end of the sliding block 31, there is a threaded hole 32. Both sides of the sliding groove 30 penetrate through the inside of both sides of the operating table 3. The bottom end of the internal hexagonal bolt 28 penetrates through the inside of the connecting block 29 and is rotatably connected in the threaded hole 32;

[0031] Specifically, as Figure 1 , Figure 3 and Figure 4 shown, when using the device to grind a workpiece, place the workpiece at the middle position of the top end of the operating table 3. On both sides of the top end of the operating table 3, push the set clamping plates 4 inward respectively until they abut against both sides of the workpiece, and then rotate the internal hexagonal bolts 28 downward respectively to fix the positions of the clamping plates 4. Through the two groups of clamping plates 4 that can be adjusted horizontally, it is convenient to clamp and fix workpieces of different sizes.

[0032] At the top end inside the mounting frame 2, there is a mounting seat 7. Inside the mounting seat 7, there is a one-way lead screw 10 horizontally movably connected. The outside of the one-way lead screw 10 is threadedly connected with a threaded sleeve 12. The bottom end of the threaded sleeve 12 penetrates through the inside of the bottom end of the mounting seat 7 and is fixedly connected with the top end of the drive motor assembly 6. A reduction motor 11 is fixedly installed on the right side of the mounting seat 7, and the output shaft of the reduction motor 11 is fixedly connected with the right side of the one-way lead screw 10. At the middle position of the top end of the mounting frame 2, there is a hydraulic cylinder 9, and the output end at the bottom of the hydraulic cylinder 9 penetrates through the inside of the top end of the mounting frame 2 and is fixedly connected with the top end of the mounting seat 7. On both sides of the top end of the mounting seat 7, there are guide rods 8 vertically installed and fixedly connected respectively, and the top ends of the guide rods 8 penetrate through the inside of the top end of the mounting frame 2.

[0033] Working principle: When the automated device of the present utility model grinds a workpiece, the workpiece is placed at the middle position on the top of the operating table 3. On both sides of the top of the operating table 3, the clamping plates 4 provided can be respectively pushed inward until they abut against both sides of the workpiece, and then the hexagon socket head bolts 28 can be respectively screwed downward to fix the positions of the clamping plates 4. After the workpiece is fixed on the top of the operating table 3, the driving motor assembly 6 can be controlled to start to drive the mounting plate 13 and the sandpaper disc 14 to rotate, and the hydraulic cylinder 9 can be controlled to drive the mounting seat 7 to move downward to assist in grinding some burr protrusions on the surface of the workpiece with the sandpaper disc 14. During the grinding process of the device for the workpiece, the negative pressure exhaust fan 26 can be controlled to start exhausting air at the same time, so that a negative pressure is generated inside the suction hood 5, and some dust generated during the grinding process can be sucked and collected. Through the three connecting pipes 20 fixed at the rear end of the suction hood 5, multi-point suction can be carried out inside the mounting frame 2. After the dust is sucked into the suction hood 5 and introduced into the fixed box 21 through the connecting pipe 20, the solid dust particles can be filtered and intercepted by the filter element 24, and the filtered air is then exported by the negative pressure exhaust fan 26. At the same time, during the grinding process, the reduction motor 11 can be controlled to drive the single lead screw 10 to rotate. While the single lead screw 10 rotates, the 12 connected by threads can be used to drive the 6 and the 14 installed at the bottom to move left and right, so as to automatically grind different positions on the surface of the workpiece. When replacing the sandpaper disc 14 used for grinding, the locking rods 15 provided on both sides of the top of the mounting plate 13 can be respectively screwed out from the threaded holes 18 inside the top of the positioning blocks 17, and then the sandpaper disc 14 can be disassembled and separated from the bottom of the mounting plate 13. When replacing with a new sandpaper disc 14, first insert the two positioning blocks 17 into the inside of the positioning groove 16 for positioning, and then use the locking rod 15 to screw into the threaded hole 18, and then the sandpaper disc 14 can be fixedly installed at the bottom of the mounting plate 13 to complete the replacement. The locking direction of the locking rod 15 is the same as the rotation direction of the mounting plate 13, and it is a threaded locking disassembly and assembly method.

[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An automated device for facilitating the replacement of sandpaper, comprising a device frame (1) and a mounting frame (2), characterized in that: A mounting frame (2) is fixed to the top of the device frame (1), a driving motor assembly (6) is arranged inside the mounting frame (2), and a replacement structure for facilitating the replacement of sandpaper is arranged at the bottom of the driving motor assembly (6); The replacement structure comprises a mounting plate (13), a sandpaper plate (14), a locking rod (15), a positioning groove (16), a positioning block (17) and a threaded hole (18); the output end at the bottom of the driving motor assembly (6) is fixedly mounted with the mounting plate (13), and the bottom end of the mounting plate (13) is provided with a sandpaper plate (14); positioning blocks (17) are respectively fixed on both sides of the top end of the sandpaper plate (14); positioning grooves (16) are respectively provided inside the two sides of the bottom end of the mounting plate (13); locking rods (15) are respectively provided on both sides of the top end of the mounting plate (13); and threaded holes (18) are provided inside the top end of the positioning block (17) to be matched with the locking rod (15) for mounting.

2. The automatic device for facilitating the replacement of sandpaper according to claim 1, characterized in that: The bottom end of the locking rod (15) passes through the interior of the top end of the mounting plate (13), the exterior of the locking rod (15) is provided with an external thread, and the top end of the exterior of the locking rod (15) is sleeved with a rubber gasket.

3. The automatic device for facilitating the replacement of sandpaper according to claim 1, characterized in that: A suction hood (5) is fixed at the rear end of the mounting frame (2), and a filter screen (19) is transversely fixed at the front end of the suction hood (5). A fixed box (21) is fixed at the bottom of the rear end of the mounting frame (2), and a slot (22) is provided inside the fixed box (21). The right side of the slot (22) passes through the inside of the right side of the fixed box (21). An inner frame (23) is inserted into the inside of the slot (22), and a filter element (24) is fixed inside the inner frame (23). Connecting pipes (20) are fixed at both sides and the middle position of the top of the fixed box (21), and the front end of the connecting pipe (20) passes through the inside of the rear end of the mounting frame (2) and is fixedly connected to the rear end of the suction hood (5). A casing (25) is fixed at the bottom of the rear end of the mounting frame (2), and negative pressure exhaust fans (26) are fixed at both sides of the top of the casing (25), and fixed pipes (27) are fixed at both sides of the top of the casing (25).

4. The automatic device for facilitating the replacement of sandpaper according to claim 3, characterized in that: The suction hood (5) is connected to the interior of the connecting pipe (20), the connecting pipe (20) is connected to the interior of the fixed box (21), the top end of the fixed pipe (27) is fixedly connected to the bottom end of the fixed box (21), and the fixed box (21) is connected to the interior of the casing (25) through the fixed pipe (27).

5. The automatic device for facilitating the replacement of sandpaper according to claim 1, characterized in that: An operating table (3) is fixed at the bottom end of the mounting frame (2), clamping plates (4) are arranged on both sides of the top of the operating table (3), and a connecting block (29) is fixed at the bottom end of the clamping plates (4), a slide groove (30) is opened inside the top of the operating table (3), and sliding blocks (31) are respectively arranged on both sides of the slide groove (30), a hexagon socket bolt (28) is penetrated inside the clamping plate (4), and a screw hole (32) is opened inside the top of the sliding block (31).

6. The automatic device for facilitating the replacement of sandpaper according to claim 5, characterized in that: The two sides of the slide groove (30) respectively penetrate the interior of the two sides of the operating table (3), and the bottom end of the hexagon socket bolt (28) penetrates the interior of the connecting block (29) and is rotatably connected in the screw hole (32).

7. The automatic device for facilitating the replacement of sandpaper according to claim 1, characterized in that: A mounting seat (7) is provided at the top end of the mounting frame (2), and a one-way screw (10) is movably connected to the inside of the mounting seat (7) in a transverse manner, and a threaded sleeve (12) is threadedly connected to the outside of the one-way screw (10), the bottom end of the threaded sleeve (12) passes through the inside of the bottom end of the mounting seat (7) and is fixedly connected to the top end of the drive motor assembly (6), a reduction motor (11) is fixedly installed on the right side of the mounting seat (7), and the output shaft of the reduction motor (11) is fixedly connected to the right side of the one-way screw (10).

8. The automatic device for facilitating the replacement of sandpaper according to claim 1, characterized in that: A hydraulic cylinder (9) is fixed at the middle position of the top of the mounting frame (2), and the output end of the bottom of the hydraulic cylinder (9) passes through the interior of the top of the mounting frame (2) and is fixedly connected to the top of the mounting seat (7), and guide rods (8) are respectively vertically fixed on both sides of the top of the mounting seat (7), and the top of the guide rods (8) passes through the interior of the top of the mounting frame (2).

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