Grinding device for metal machining and manufacturing

Abstract

The invention discloses a grinding device for metal processing and manufacturing, which belongs to the technical field of metal processing and comprises a base, a dust cover is fixedly mounted at the top of the base, a top cover is arranged at the top of the dust cover, and a positioning assembly is arranged between the top cover and the dust cover; through cooperative use of a pulling plate, a supporting plate and a fixing assembly, when a user needs to polish a workpiece, the pulling plate can be pulled out of the dust cover, then the metal workpiece is placed on the top of the supporting plate, and the metal workpiece is fixed to the top of the supporting plate through the fixing assembly; according to the grinding device for the metal workpiece, the metal workpiece is prevented from moving in the grinding process, the metal workpiece can be inserted into the dustproof cover after being fixed, the grinding assembly is driven by the lifting air cylinder to move to the position making contact with the metal workpiece, and then the grinding assembly is driven by the moving assembly to grind the metal workpiece; and in the grinding process, the dust collecting assembly can collect dust generated by grinding.

Description

Technical Field

[0001] This invention belongs to the field of metal processing technology, and specifically relates to a grinding device for metal processing and manufacturing. Background Technology

[0002] Metal processing and manufacturing is the foundation of modern industry, encompassing a wide range of fields from large structural components to precision parts. After metal workpieces are formed, their surfaces typically require grinding to remove burrs, flash, weld spatter, and oxide layers, achieving specific surface roughness, dimensional accuracy, and finish, in preparation for subsequent painting, electroplating, or assembly processes.

[0003] Currently, common metal grinding devices on the market and in production mainly include handheld grinding tools and simple stationary grinding equipment. Handheld grinding tools include angle grinders and pneumatic grinders. These tools rely on the operator's hand to operate, which, while highly flexible and inexpensive, has significant drawbacks: First, the grinding quality and efficiency are highly dependent on the operator's skill level and fatigue level, making it difficult to guarantee product consistency; second, the dust, noise, and debris generated pose significant health hazards to the operator, resulting in high labor intensity; third, there are serious safety hazards, easily leading to workplace injuries due to tool slippage or misoperation; simple stationary grinding equipment typically fixes the workpiece to a worktable, with a motor driving a grinding wheel or belt for unidirectional rotation grinding. While this type of equipment frees up manpower to some extent, its function is limited and its automation level is low. For workpieces with complex structures or irregular curved surfaces, frequent manual adjustments to the workpiece's posture are required, also resulting in difficulties in precision control and low production efficiency. In addition, dust collection systems are often inadequate, creating a harsh working environment.

[0004] To address these issues, we propose a grinding device for metal processing and manufacturing to solve the problems existing in the prior art, enabling it to combine automation and high precision while also possessing good dust handling capabilities. Summary of the Invention

[0005] The purpose of this invention is to provide a grinding device for metal processing and manufacturing, in order to solve the problems mentioned in the background art that the existing metal grinding technology relies too much on manual labor, has inherent defects in quality, efficiency and safety, and has an imperfect dust collection system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A grinding device for metal processing and manufacturing includes a base, a dust cover fixedly installed on the top of the base, a top cover on the top of the dust cover, a positioning component between the top cover and the dust cover, the top cover being snapped and fixed to the top of the dust cover by the positioning component, a moving component on the top of the inner cavity of the dust cover, a lifting cylinder on the moving end of the moving component, a grinding component for grinding metal on the telescopic end of the lifting cylinder, a dust collection component being installed on the grinding component, slide rails fixedly installed on both sides of the inner cavity of the dust cover, a support plate slidably connected to the inner side of the two sets of slide rails, a limit component between the two sides of the support plate and the slide rail, a pull plate fixedly connected to one side of the support plate penetrating the dust cover and extending to the outside of the dust cover, a snap-fit ​​component being provided between the pull plate and the dust cover, and a fixing component for fixing metal workpieces installed on the top of the support plate.

[0007] Preferably, the fixing assembly includes a fixing plate, a drive motor, a drive screw, a slide, a connecting seat, and a clamping frame. Two sets of fixing plates are provided, and the two sets of fixing plates are symmetrically installed on the bottom of the support plate. The drive motor is fixedly installed on one side of one set of fixing plates. The output shaft of the drive motor passes through this set of fixing plates and extends between the two sets of fixing plates, where it is fixedly connected to one end of the drive screw. The end of the drive screw away from the drive motor is rotatably connected to the surface of the other set of fixing plates. Two sets of slides are provided, and the two sets of slides are symmetrically threaded onto the surface of the drive screw. The connecting seat is fixedly installed on the top of the slide, and the top end of the slide passes through the support plate and extends above the plate, where it is fixedly connected to the bottom of the clamping frame. The bottom of the clamping frame is slidably connected to the top of the support plate.

[0008] Preferably, the surface of the drive screw is provided with two sets of external threads, and the two sets of external threads are arranged in opposite directions.

[0009] Preferably, the surface of the support plate is provided with a movable groove, and the surface of the connecting seat is slidably connected to the inner wall of the movable groove.

[0010] Preferably, the moving component includes a longitudinal electric slide, a transverse electric slide, and a mounting base. Two sets of longitudinal electric slides are provided, and the two sets of longitudinal electric slides are symmetrically installed on the top of the inner cavity of the dust cover. The transverse electric slide is installed on the moving end of the two sets of longitudinal electric slides. The mounting base is fixedly installed on the moving end of the transverse electric slide. The lifting cylinder is fixedly installed on one side of the mounting base.

[0011] Preferably, the grinding assembly includes a fixed frame, a grinding motor, a rotating shaft, and a grinding disc. The fixed frame is fixedly installed on the telescopic end of the lifting cylinder. The grinding motor is fixedly installed in the inner cavity of the fixed frame. The output shaft of the grinding motor passes through the fixed frame and extends to the bottom of the fixed frame, where it is fixedly connected to the top of the rotating shaft. The bottom end of the rotating shaft is fixedly connected to the top of the grinding disc.

[0012] Preferably, the dust collection assembly includes a connecting pipe, a dust collection hood, and a connecting hose. The dust collection hood is located outside the grinding disc. The connecting pipe is fixedly installed on the top of the dust collection hood. The top of the connecting pipe is fixedly connected to the bottom of the fixing frame. One end of the connecting hose communicates with the top of the dust collection hood, and the other end of the connecting hose passes through the dust cover and extends to the outside of the dust cover.

[0013] Preferably, the positioning component includes a positioning block, a positioning groove, a first magnet piece, and a second magnet piece. The positioning block is fixedly installed at the bottom of the top cover, and the positioning groove is opened at the top of the dust cover. The positioning groove and the positioning block are arranged correspondingly. The bottom of the positioning block is inserted into the inner cavity of the positioning groove. The first magnet piece is adhered to the bottom of the positioning block, and the second magnet piece is adhered to the bottom of the inner cavity of the positioning groove. The bottom of the first magnet piece and the top of the second magnet piece are magnetically attracted to each other.

[0014] Preferably, the limiting component includes a limiting block and a limiting groove. The limiting block is fixedly installed on both sides of the support plate, and the limiting groove is opened on both sides of the slide rail. The surface of the limiting block is slidably connected to the inner wall of the limiting groove.

[0015] Preferably, the snap-fit ​​assembly includes an elastic buckle and a slot. The elastic buckle is fixedly installed on one side of the dust cover, and the slot is opened on one side of the pull plate. The slot and the elastic buckle are arranged in a corresponding manner, and the surface of the elastic buckle snaps into contact with the inner wall of the slot.

[0016] Technical effects and advantages of the present invention: The grinding device for metal processing and manufacturing proposed in this invention has the following advantages compared with the prior art: 1. This invention utilizes a pull plate, a support plate, and a fixing component. When a workpiece needs grinding, the user can pull the pull plate to remove the support plate from the dust cover, place the metal workpiece on top of the support plate, and fix the workpiece in place using the fixing component to prevent movement during grinding. After fixing, the workpiece can be inserted into the dust cover, and a lifting cylinder moves the grinding component to the position where it contacts the workpiece. The moving component then drives the grinding component to grind the workpiece. During grinding, a dust collection component collects the dust generated. This device confines the entire grinding process within the dust cover, combining automation and high precision with excellent dust handling capabilities. The linkage design of the moving component and the dust collection component enables integrated operation of efficient grinding and immediate dust removal in a confined space. The pull-out design of the fixing component and the support plate significantly improves workpiece clamping efficiency and positioning accuracy. 2. This invention, through the setting of positioning components, allows the top cover to be detachably installed on the top of the dust cover. The top cover can be removed to facilitate the user's inspection and maintenance of the internal structure of the dust cover. The setting of slide rails can improve the stability of the support plate movement. The setting of limiting components can limit the support plate and prevent the support plate from disengaging from the slide rail. Through the setting of snap-fit ​​components, after the metal workpiece on the top of the support plate is pushed into the dust cover, the snap-fit ​​components snap-fit ​​and fix the pull plate to one side of the dust cover, thereby snapping and fixing the support plate and the pull plate, preventing the metal workpiece from moving due to the movement of the support plate during the grinding process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the support plate of the present invention; Figure 3 This is a schematic diagram of the positioning component and the snap-fit ​​component of the present invention; Figure 4 This is a schematic diagram of the structure of the fixing component of the present invention; Figure 5 This is a schematic diagram of the structure of the moving component, grinding component, and dust collection component of the present invention.

[0018] In the diagram: 1. Base; 2. Dust cover; 3. Top cover; 4. Positioning assembly; 401. Positioning block; 402. Positioning groove; 403. Magnet piece one; 404. Magnet piece two; 5. Moving assembly; 501. Longitudinal electric slide; 502. Transverse electric slide; 503. Mounting base; 6. Lifting cylinder; 7. Grinding assembly; 701. Fixing frame; 702. Grinding motor; 703. Rotating shaft; 704. Grinding disc; 8. Dust collection assembly; 801. Connecting pipe; 80 2. Dust collection hood; 803. Connecting hose; 9. Slide rail; 10. Support plate; 11. Limiting assembly; 1101. Limiting block; 1102. Limiting groove; 12. Pull plate; 13. Snap-fit ​​assembly; 1301. Elastic buckle; 1302. Snap groove; 14. Fixing assembly; 1401. Fixing plate; 1402. Drive motor; 1403. Drive screw; 1404. Slide; 1405. Connecting seat; 1406. Clamping frame; 15. External thread; 16. Moving groove. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-5 This invention discloses a grinding device for metal processing and manufacturing, including a base 1, a dust cover 2 fixedly installed on the top of the base 1, a top cover 3 provided on the top of the dust cover 2, and a positioning component 4 provided between the top cover 3 and the dust cover 2. The top cover 3 is fixedly attached to the top of the dust cover 2 by the positioning component 4. The positioning component 4 includes a positioning block 401, a positioning groove 402, a first magnetic piece 403 and a second magnetic piece 404. The positioning block 401 is fixedly installed on the bottom of the top cover 3, the positioning groove 402 is opened on the top of the dust cover 2, and the positioning groove 402 is correspondingly arranged with the positioning block 401. The bottom of the positioning block 401 is inserted into the inner cavity of the positioning groove 402. The first magnetic piece 403 is bonded to the bottom of the positioning block 401, and the second magnetic piece 404 is bonded to the bottom of the inner cavity of the positioning groove 402. The bottom of the first magnetic piece 403 and the top of the second magnetic piece 404 are magnetically attracted to each other.

[0021] In this embodiment, the dust cover 2 confines the entire polishing process within its small space, preventing dust generated during polishing from spreading into the work environment. The positioning component 4 allows the top cover 3 to be detachably mounted on top of the dust cover 2, facilitating user access to inspect and maintain the structure within the dust cover 2. When installing the top cover 3, the user aligns the positioning block 401 with the positioning groove 402 and presses the top cover 3 downwards, engaging the positioning block 401 into the positioning groove 402. At this point, the bottom of the first magnetic piece 403 and the top of the second magnetic piece 404 are magnetically attracted together, thus magnetically fixing the positioning block 401 in the positioning groove 402 and securing the top cover 3 in its position.

[0022] Preferably, a movable assembly 5 is provided at the top of the inner cavity of the dust cover 2. A lifting cylinder 6 is provided at the moving end of the movable assembly 5. The movable assembly 5 includes a longitudinal electric slide 501, a transverse electric slide 502, and a mounting base 503. Two sets of longitudinal electric slides 501 are provided, and the two sets of longitudinal electric slides 501 are symmetrically installed at the top of the inner cavity of the dust cover 2. The transverse electric slides 502 are installed on the moving ends of the two sets of longitudinal electric slides 501. The mounting base 503 is fixedly installed on the moving end of the transverse electric slide 502. The lifting cylinder 6 is fixedly installed on the mounting base 503. On one side of the mounting base 503, a grinding assembly 7 for grinding metal is installed on the telescopic end of the lifting cylinder 6. The grinding assembly 7 includes a fixed frame 701, a grinding motor 702, a rotating shaft 703, and a grinding disc 704. The fixed frame 701 is fixedly installed on the telescopic end of the lifting cylinder 6. The grinding motor 702 is fixedly installed in the inner cavity of the fixed frame 701. The output shaft of the grinding motor 702 passes through the fixed frame 701 and extends to the bottom of the fixed frame 701 and is fixedly connected to the top of the rotating shaft 703. The bottom end of the rotating shaft 703 is fixedly connected to the top of the grinding disc 704.

[0023] By setting the movable component 5, the position of the grinding component 7 can be moved to evenly grind the surface of the metal workpiece. During the grinding process, the user can use the lifting cylinder 6 to move the grinding component 7 downward so that the bottom of the grinding disc 704 contacts the top of the metal workpiece. Then, the grinding motor 702 drives the rotating shaft 703 to rotate, which in turn drives the grinding disc 704 to rotate and grind the metal workpiece. During the grinding process, the user can adjust the position of the grinding disc 704 through the longitudinal electric slide 501 and the transverse electric slide 502 to grind different parts of the metal workpiece.

[0024] It is worth noting that a dust collection component 8 is installed on the grinding assembly 7. The dust collection component 8 includes a connecting pipe 801, a dust collection hood 802, and a connecting hose 803. The dust collection hood 802 is located outside the grinding disc 704. The connecting pipe 801 is fixedly installed on the top of the dust collection hood 802, and the top of the connecting pipe 801 is fixedly connected to the bottom of the fixing frame 701. One end of the connecting hose 803 is connected to the top of the dust collection hood 802, and the other end of the connecting hose 803 passes through the dust cover 2 and extends to the outside of the dust cover 2. With the dust collection component 8, the dust collection component 8 is used in conjunction with the grinding assembly 7 to collect the dust generated during the grinding process. The user can install a bag filter or cyclone separator at the end of the connecting hose 803 located outside the dust cover 2. In this embodiment, the connecting hose 803 ensures that the dust collection hood 802 remains connected to the external bag filter or cyclone separator during the movement of the grinding assembly 7.

[0025] Furthermore, slide rails 9 are fixedly installed on both sides of the inner cavity of the dust cover 2. Support plates 10 are slidably connected to the inner sides of the two sets of slide rails 9. One side of the support plate 10 penetrates the dust cover 2 and extends to the outside of the dust cover 2, where a pull plate 12 is fixedly connected. A fixing assembly 14 for fixing metal workpieces is installed on the top of the support plate 10. The fixing assembly 14 includes a fixing plate 1401, a drive motor 1402, a drive screw 1403, a slide block 1404, a connecting seat 1405, and a clamping frame 1406. There are two sets of fixing plates 1401, and the two sets of fixing plates 1401 are symmetrically installed on the bottom of the support plate 10. The drive motor 1402 is fixedly installed on one set of fixing plates 1401. On one side, the output shaft of the drive motor 1402 passes through the set of fixed plates 1401 and extends to the space between the two sets of fixed plates 1401, and is fixedly connected to one end of the drive screw 1403. The end of the drive screw 1403 away from the drive motor 1402 is rotatably connected to the surface of the other set of fixed plates 1401. Two sets of slide blocks 1404 are provided, and the two sets of slide blocks 1404 are symmetrically threaded onto the surface of the drive screw 1403. The connecting seat 1405 is fixedly installed on the top of the slide block 1404, and the top of the slide block 1404 passes through the support plate 10 and extends to the top of the plate, and is fixedly connected to the bottom of the clamping frame 1406. The bottom of the clamping frame 1406 is slidably connected to the top of the support plate 10.

[0026] By setting the slide rail 9, the stability of the support plate 10 can be improved. When the support plate 10 moves, its two sides will slide in the inner cavity of the slide rail 9. When grinding the workpiece, the user can pull the support plate 10 outward through the pull plate 12, and then place the metal workpiece on the top of the support plate 10. Then the user can drive the drive screw 1403 to rotate through the drive motor 1402, and then drive the connecting seat 1405 to move through the slide 1404, and then drive the two sets of clamping frames 1406 to move to clamp and fix the metal workpiece on the top of the support plate 10.

[0027] Furthermore, the surface of the drive screw 1403 is provided with two sets of external threads 15, which are arranged in opposite directions. In this embodiment, two sets of external threads 15 in opposite directions are engraved on the surface of the drive screw 1403. When the drive screw 1403 rotates, it can drive the two sets of slide blocks 1404 to move in opposite directions, thereby driving the two sets of clamping frames 1406 to clamp the metal workpiece inward or move outward to release the metal workpiece. The surface of the support plate 10 is provided with a moving groove 16. The surface of the connecting seat 1405 is slidably connected to the inner wall of the moving groove 16. The moving groove 16 provides moving space for the connecting seat 1405. When the connecting seat 1405 moves, its surface will slide in the inner cavity of the moving groove 16.

[0028] Furthermore, a limiting component 11 is provided between the two sides of the support plate 10 and the slide rail 9. The limiting component 11 includes a limiting block 1101 and a limiting groove 1102. The limiting block 1101 is fixedly installed on both sides of the support plate 10, and the limiting groove 1102 is opened on both sides of the slide rail 9. The surface of the limiting block 1101 is slidably connected to the inner wall of the limiting groove 1102. By setting the limiting component 11, the support plate 10 can be limited to prevent it from disengaging from the slide rail 9. When the support plate 10 moves, it will drive the limiting block 1101 to slide within the cavity of the limiting groove 1102.

[0029] A snap-fit ​​assembly 13 is provided between the pull plate 12 and the dust cover 2. The snap-fit ​​assembly 13 includes an elastic buckle 1301 and a slot 1302. The elastic buckle 1301 is fixedly installed on one side of the dust cover 2, and the slot 1302 is opened on one side of the pull plate 12. The slot 1302 and the elastic buckle 1301 are correspondingly arranged, and the surface of the elastic buckle 1301 engages with the inner wall of the slot 1302. With the snap-fit ​​assembly 13, after the metal workpiece on the top of the support plate 10 is pushed into the dust cover 2, the pull plate 12 is snapped and fixed to one side of the dust cover 2 by the snap-fit ​​assembly 13, so as to snap and fix the support plate 10 and the pull plate 12, and prevent the metal workpiece from moving due to the movement of the support plate 10 during the grinding process.

[0030] For example, the longitudinal electric slide 501 and the transverse electric slide 502 can be selected from HIWIN EGL series linear modules; the lifting cylinder 6 can be selected from SMC MGPM series cylinders; the drive motor 1402 can be selected from Nanotec ST4118M1004-B stepper motors; and the grinding motor 702 can be selected from IST AG HF series high-frequency milling motors. Those skilled in the art should understand that the above models are merely examples and not limitations on the present invention; any equivalent components with the same function can be used to implement the present invention.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grinding device for metal processing and manufacturing, comprising a base (1), wherein a dust cover (2) is fixedly installed on the top of the base (1), and a top cover (3) is provided on the top of the dust cover (2), characterized in that, A positioning component (4) is provided between the top cover (3) and the dust cover (2). The top cover (3) is fixed to the top of the dust cover (2) by the positioning component (4). A moving component (5) is provided at the top of the inner cavity of the dust cover (2). A lifting cylinder (6) is provided at the moving end of the moving component (5). A grinding component (7) for grinding metal is installed at the telescopic end of the lifting cylinder (6). A dust collection component (8) is installed on the grinding component (7). The two sides of the inner cavity of the dust cover (2) Each side is fixedly installed with a slide rail (9), and the inner side of the two sets of slide rails (9) is slidably connected with a support plate (10). Limiting components (11) are provided between the two sides of the support plate (10) and the slide rail (9). A pull plate (12) is fixedly connected to one side of the support plate (10) through the dust cover (2) and extending to the outside of the dust cover (2). A snap-fit ​​component (13) is provided between the pull plate (12) and the dust cover (2). A fixing component (14) for fixing the metal workpiece is installed on the top of the support plate (10).

2. The grinding device for metal processing and manufacturing according to claim 1, characterized in that: The fixing assembly (14) includes a fixing plate (1401), a drive motor (1402), a drive screw (1403), a slide (1404), a connecting seat (1405), and a clamping frame (1406). Two sets of fixing plates (1401) are provided, and the two sets of fixing plates (1401) are symmetrically installed on the bottom of the support plate (10). The drive motor (1402) is fixedly installed on one side of one set of fixing plates (1401). The output shaft of the drive motor (1402) passes through this set of fixing plates (1401) and extends between the two sets of fixing plates (1401) and the drive screw (1403). One end of the drive screw (1403) is fixedly connected to the drive motor (1402), and the end of the drive screw (1403) away from the drive motor (1402) is rotatably connected to the surface of another set of fixed plates (1401). Two sets of slides (1404) are provided, and the two sets of slides (1404) are symmetrically threaded on the surface of the drive screw (1403). The connecting seat (1405) is fixedly installed on the top of the slide (1404), and the top of the slide (1404) passes through the support plate (10) and extends to the top of the plate and is fixedly connected to the bottom of the clamping frame (1406). The bottom of the clamping frame (1406) is slidably connected to the top of the support plate (10).

3. The grinding device for metal processing and manufacturing according to claim 2, characterized in that: The surface of the drive screw (1403) is provided with two sets of external threads (15), and the two sets of external threads (15) are arranged in opposite directions.

4. The grinding device for metal processing and manufacturing according to claim 2, characterized in that: The surface of the support plate (10) is provided with a movable groove (16), and the surface of the connecting seat (1405) is slidably connected to the inner wall of the movable groove (16).

5. A grinding device for metal processing and manufacturing according to claim 1, characterized in that: The moving component (5) includes a longitudinal electric slide (501), a transverse electric slide (502), and a mounting base (503). There are two sets of longitudinal electric slides (501), and the two sets of longitudinal electric slides (501) are symmetrically installed on the top of the inner cavity of the dust cover (2). The transverse electric slide (502) is installed on the moving end of the two sets of longitudinal electric slides (501). The mounting base (503) is fixedly installed on the moving end of the transverse electric slide (502). The lifting cylinder (6) is fixedly installed on one side of the mounting base (503).

6. The grinding device for metal processing and manufacturing according to claim 1, characterized in that: The polishing assembly (7) includes a fixed frame (701), a polishing motor (702), a rotating shaft (703), and a polishing disc (704). The fixed frame (701) is fixedly installed on the telescopic end of the lifting cylinder (6). The polishing motor (702) is fixedly installed in the inner cavity of the fixed frame (701). The output shaft of the polishing motor (702) passes through the fixed frame (701) and extends to the bottom of the fixed frame (701) and is fixedly connected to the top of the rotating shaft (703). The bottom end of the rotating shaft (703) is fixedly connected to the top of the polishing disc (704).

7. A grinding device for metal processing and manufacturing according to claim 6, characterized in that: The dust collection assembly (8) includes a connecting pipe (801), a dust collection hood (802), and a connecting hose (803). The dust collection hood (802) is located outside the grinding disc (704). The connecting pipe (801) is fixedly installed on the top of the dust collection hood (802). The top of the connecting pipe (801) is fixedly connected to the bottom of the fixing frame (701). One end of the connecting hose (803) is connected to the top of the dust collection hood (802), and the other end of the connecting hose (803) passes through the dust cover (2) and extends to the outside of the dust cover (2).

8. A grinding device for metal processing and manufacturing according to claim 1, characterized in that: The positioning component (4) includes a positioning block (401), a positioning groove (402), a first magnetic piece (403), and a second magnetic piece (404). The positioning block (401) is fixedly installed at the bottom of the top cover (3). The positioning groove (402) is opened at the top of the dust cover (2). The positioning groove (402) is correspondingly set with the positioning block (401). The bottom of the positioning block (401) is inserted into the inner cavity of the positioning groove (402). The first magnetic piece (403) is bonded to the bottom of the positioning block (401). The second magnetic piece (404) is bonded to the bottom of the inner cavity of the positioning groove (402). The bottom of the first magnetic piece (403) and the top of the second magnetic piece (404) are magnetically attracted to each other.

9. A grinding device for metal processing and manufacturing according to claim 1, characterized in that: The limiting component (11) includes a limiting block (1101) and a limiting groove (1102). The limiting block (1101) is fixedly installed on both sides of the support plate (10), and the limiting groove (1102) is opened on both sides of the slide rail (9). The surface of the limiting block (1101) is slidably connected to the inner wall of the limiting groove (1102).

10. A grinding device for metal processing and manufacturing according to claim 1, characterized in that: The snap-fit ​​assembly (13) includes an elastic buckle (1301) and a slot (1302). The elastic buckle (1301) is fixedly installed on one side of the dust cover (2), and the slot (1302) is opened on one side of the pull plate (12). The slot (1302) and the elastic buckle (1301) are arranged in a corresponding manner, and the surface of the elastic buckle (1301) is snapped into the inner wall of the slot (1302).

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