A dust removal structure and numerical control drilling center

Abstract

The utility model relates to dust removal structure technical field, concretely is a dust removal structure and numerical control drilling center. The dust removal structure includes the frame, and it is equipped with processing device, set up the blowing assembly on processing device, and blowing assembly is used for blowing the processing debris on processing device, set up the dustproof assembly on the frame, and dustproof assembly is used for receiving processing debris, set up the dust absorption switching assembly on the frame, and dust absorption switching assembly is located at the export of dustproof assembly, and dust absorption switching assembly is used for receiving the processing debris in dustproof assembly, and controls the discharge capacity of processing debris, set up the dust scraping assembly on processing device, and processing device is movably arranged on the frame to drive dust scraping assembly to sweep the processing debris in dustproof assembly to dust absorption switching assembly place. The whole structure is simple, carries out dust removal with blowing assembly, prevents processing debris from accumulating on processing device, and in addition, has dust absorption switching device control processing debris's discharge capacity, improves the working efficiency of dust absorption equipment.

Description

Technical Field

[0001] This utility model relates to the field of dust removal structure technology, specifically a dust removal structure and a CNC drilling center. Background Technology

[0002] In recent years, with the rapid development of modern technology, various types of panel processing equipment have emerged. These devices have achieved remarkable results in furniture manufacturing and other fields. However, the wood processing process inevitably generates a large amount of sawdust and dust, which is inconvenient to clean and has a significant impact on the working environment and the health of operators.

[0003] Current dust removal structure design such as Figure 1 As shown, ① - lower drill base, ② - belt dust collector, ③ - dust baffle, ④ - main spindle assembly, ⑤ - drill bag assembly, ⑥ - conveyor belt dust hood, ⑦ - air duct, ⑧ - dust collection bracket, ⑨ - dust collection hood, ⑩ - rubber sheet. When the drill bag assembly ⑤ processes the board, the sawdust attached to the board is swept off by the rubber sheet ⑩ into the dust collection hood ⑨. Since the air duct ⑦ connects the dust collection bracket ⑧ and the dust collection hood ⑨, the sawdust can be discharged under the action of the central dust collection equipment. Some loose dust and large wood particles will also fall down the dust baffle ③ onto the belt dust collector ②. When the motor runs, it will drive the dust on the belt dust collector ② to be collected by the conveyor belt dust collection hood ⑥. However, the above structure also has some drawbacks. For example, large wood particles and wood blocks will accumulate in the drill bag assembly ⑤ and the air duct ⑦. Long-term accumulation will lead to blockage, poor dust collection effect, and difficulty in cleaning. Utility Model Content

[0004] The purpose of this invention is to propose a dust removal structure that aims to solve the technical problem that processing debris in existing dust removal structures accumulates at the drilling device and air duct, easily leading to blockage and poor dust collection effect.

[0005] To achieve the above objectives, this utility model proposes a dust removal structure, including a frame, which is equipped with a processing device; An air blowing assembly is provided on the processing device, and the air blowing assembly is used to blow away processing debris from the processing device (specifically, the lower drill bag in the processing device); A dust-proof assembly, which is detachably mounted on the frame, is used to collect processing debris; A dust collection switching assembly is detachably mounted on the frame and is located at the outlet of the dust blocking assembly. The dust collection switching assembly is used to collect the processing debris inside the dust blocking assembly and control the discharge amount of the processing debris. A dust scraping assembly is mounted on the processing device, which is movably mounted on the frame, so as to drive the dust scraping assembly to sweep the processing debris in the dust blocking assembly to the dust suction switching assembly.

[0006] Preferably, the vacuum switching assembly includes a dust collection hopper, a telescopic component, a sealing plate, and a vacuum hood. One end of the dust collection hopper is connected to the outlet of the dust blocking assembly, and the other end of the dust collection hopper is connected to the inlet of the vacuum hood. The vacuum hood is connected to an external vacuuming device. The dust hood has a vertically movable sealing plate inserted at its inlet. The telescopic component is mounted on the dust hood, and its output end is connected to the sealing plate to drive the sealing plate to move up and down, thereby controlling the size of the dust hood's inlet and thus controlling the amount of processing debris discharged.

[0007] Preferably, the dust-blocking assembly includes a dust collector plate, a first dust cover plate, a second dust cover plate, and a third dust cover plate. The first dust cover plate and the second dust cover plate are respectively provided on both sides of the dust collector plate located at the bottom end. The third dust cover plate is provided at at least one end of the dust collector plate. The outlet is located between the bottom end of the third dust cover plate and the dust collector plate. The second dust cover is composed of multiple inclined panels that are assembled sequentially.

[0008] Preferably, the dust-blocking assembly further includes multiple first dust-blocking plates spliced ​​together in sequence, with the first dust-blocking plates vertically disposed at the top of the second dustproof cover plate; The dust-blocking assembly further includes a second dust-blocking plate that is inclinedly disposed on the frame, the second dust-blocking plate abutting against the upper surface of one end of the second dust cover.

[0009] Preferably, the dust scraper assembly includes a mounting bracket, a rubber sheet, and a pressure strip. The mounting bracket is detachably disposed at the bottom end of the processing device, and the rubber sheet is detachably disposed on at least one side of the mounting bracket via the pressure strip, with the bottom end of the rubber sheet extending into the dust-blocking assembly.

[0010] In addition, this utility model also proposes a CNC drilling center, including the dust removal structure as described in any of the above claims, and further including: A workbench is provided at the top of the frame and is used to place the sheet metal to be processed. The processing device is used to drill holes in the plate.

[0011] Preferably, the processing device includes a lower headstock, a base, a lateral movement component, a vertical movement component, a lower drill bit, and a rotary drive component. The lower headstock is mounted on the frame. The base is movably mounted on the lower headstock via the lateral movement component. The vertical movement component is mounted on the base. The lower drill bit and the rotary drive component are mounted on the vertical movement component. The rotary drive component is connected to the lower drill bit to drive the lower drill bit to rotate. Multiple drill bits are spaced apart on the lower drill bit.

[0012] Preferably, the air blowing assembly is located at the upper end of the lower drill bag (specifically, at the top of the slide plate on the back side of the lower drill bag), and the air blowing pipe of the air blowing assembly has multiple air outlets, which are directly opposite the gaps between the drill bits that are spaced apart.

[0013] Preferably, the lateral movement assembly includes a first driving member, a gear, a rack, a lateral guide rail, and a first slider. The rack and the lateral guide rail are arranged laterally on one side of the lower headstock, with the rack and the lateral guide rail spaced apart. The first driving member is disposed on the base, and the output end of the first driving member passes through the back side of the base and is connected to the gear. The gear is meshed on the rack. The back side of the base is also provided with the first slider, which is slidably disposed on the lateral guide rail.

[0014] Preferably, the vertical movement component includes a second drive module, a vertical guide rail, and a second slider. The second drive module is connected to the lower drill bag to drive the lower drill bag to move up and down. The base has a second slider on its front side, the back of the lower drill bag is connected to the slide plate, the slide plate has the vertical guide rail, and the second slider is slidably mounted on the vertical guide rail.

[0015] The dust removal structure and CNC drilling center disclosed in this utility model have the following beneficial effects: 1. The dust removal structure of this solution is equipped with a dust collection switching device. By extending and retracting the telescopic component in the dust collection switching device, the inlet of the dust collection hood can be controlled to be in the open or closed state. It can also control the opening size of the dust collection hood inlet, avoiding unnecessary waste and controlling the amount of processing debris discharged. Compared with the existing dust collection structure, it reduces the dust collection air volume and improves the working efficiency of the dust collection equipment.

[0016] 2. The dust removal structure of this solution eliminates the dust suction hood of the existing dust suction structure and uses an air blowing component for dust removal, reducing the amount of installation, preventing the accumulation of processing debris, and making cleaning convenient.

[0017] 3. The dust removal structure of this solution is also equipped with a dust scraper assembly for dust removal. Utilizing the lateral movement of the processing device, the dust scraper assembly is moved synchronously to sweep the processing debris in the dust blocking assembly to the dust suction switching assembly.

[0018] 4. The processing device in this solution is also equipped with a dust-proof component to effectively prevent the spread and splashing of processing debris, thereby achieving dust prevention and collecting processing debris. Attached Figure Description

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

[0020] Figure 1 This is a schematic diagram of a dust removal structure in the prior art; Figure 2 This is a schematic diagram of the structure of the CNC drilling center of this utility model; Figure 3 This is a structural schematic diagram of the CNC drilling center of this utility model from another angle; Figure 4 This is a schematic diagram of the frame and dust-blocking components in the dust removal structure of this utility model; Figure 5 This is an exploded view of the dust-blocking component in the dust removal structure of this utility model; Figure 6 This is a schematic diagram of the worktable and processing device in the CNC drilling center of this utility model; Figure 7 This is a partial structural schematic diagram of the CNC drilling center of this utility model; Figure 8 This is an exploded view of the air blowing component in the dust removal structure of this utility model; Figure 9 This is an exploded view of the dust scraping component in the dust removal structure of this utility model; Figure 10 This is a schematic diagram of the dust collection switching component in the dust removal structure of this utility model; Figure 11 This is a cross-sectional view of the dust collection switching component in the dust removal structure of this utility model.

[0021] In the attached diagram: 1-Frame, 2-Air blowing assembly, 21-Air blowing pipe, 211-Air outlet, 3-Processing device, 31-Lower headstock, 32-Base, 33-Horizontal movement assembly, 331-First drive component, 332-Gear, 333-Rack, 334-Horizontal guide rail, 335-First slider, 34-Vertical movement assembly, 342-Vertical guide rail, 343-Second slider, 35-Lower drill bag, 351-Drill bit, 352-Slide plate, 36-Rotary drive 4-Dustproof component, 40-Outlet, 41-Dust collector plate, 42-First dustproof cover, 43-Second dustproof cover, 431-Divider plate, 44-Third dustproof cover, 45-First dustproof plate, 46-Second dustproof plate, 5-Dust suction switching component, 52-Dust hopper, 53-Telescopic component, 54-Sealing plate, 55-Dust suction hood, 551-Inlet, 6-Dust scraper component, 61-Mounting bracket, 62-Rubber, 63-Pressure strip, 7-Workbench, 8-Sheet material.

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] like Figures 2 to 11 As shown, a dust removal structure includes a frame 1, which is equipped with a processing device 3; Air blowing assembly 2 is disposed on the processing device 3, and the air blowing assembly 2 is used to blow away processing debris on the processing device 3; Dust-blocking component 4 is detachably mounted on the frame 1 and is used to collect processing debris. A dust collection switching component 5 is detachably mounted on the frame 1 and is located at the outlet 40 of the dust blocking component 4. The dust collection switching component 5 is used to collect the processing debris inside the dust blocking component 4 and control the discharge amount of the processing debris. The dust scraping assembly 6 is mounted on the processing device 3, which is movably mounted on the frame 1, so as to drive the dust scraping assembly 6 to sweep the processing debris in the dust blocking assembly 4 to the dust suction switching assembly 5.

[0027] In this design, when the processing device 3 processes the board 8, it generates a significant amount of processing debris. The air blowing component 2 in the dust removal structure maintains a blowing state, achieving dust removal through an external air source. This prevents a large amount of sawdust and dust from accumulating at the lower drill sac 35 in the processing device 3. Subsequently, the blown-off processing debris (including sawdust, dust, etc.) falls into the dust blocking device 3 and is collected. The processing device 3 is movably mounted on the frame 1. When the processing device 3 moves, the dust scraper component 6 installed on it moves synchronously to achieve left and right dust sweeping, sweeping the processing debris in the dust blocking component 4 to the dust suction switching component 5. The dust suction switching component 5 then discharges the processing debris to the outside. Notably, the dust suction switching component 5 in this design can control the amount of processing debris discharged. The overall design of the above dust removal structure is relatively simple, easy to install and debug, saves manpower, and improves production efficiency. The dust suction switching component 5 improves the working efficiency of the external dust collection equipment and also avoids continuously maintaining a dust suction state when the board 8 is not being processed.

[0028] Furthermore, the vacuuming switching assembly 5 includes a dust collection hopper 52, a telescopic component 53, a sealing plate 54, and a vacuum hood 55. One end of the dust collection hopper 52 is connected to the outlet 40 of the dust blocking assembly 4, and the other end of the dust collection hopper 52 is connected to the inlet 551 of the vacuum hood 55. The vacuum hood 55 is connected to an external vacuuming device. The dust hood 55 has a vertically movable sealing plate 54 inserted at its inlet 551. The telescopic member 53 is mounted on the dust hood 55, and its output end is connected to the sealing plate 54. The telescopic member 53 is used to drive the sealing plate 54 to move up and down, thereby controlling the size of the inlet 551 of the dust hood 55 and thus controlling the amount of processing debris discharged.

[0029] The vacuum switching component 5 can be installed at one or both outlets 40 of the dust blocking component 4, allowing users to choose according to different usage scenarios. Preferably, the vacuum switching component 5 is installed at both ends of the frame 1 for better results.

[0030] like Figure 2 , Figures 10 to 11 As shown, the dust collection switching device 4 consists of a dust collection hopper 52, a dust collection hood 55, a sealing plate 54, and a telescopic component 53 (which can be a cylinder). The required dust collection volume is controlled through the cooperation of the telescopic component 53 and the sealing plate 54. The specific operating principle is as follows: In the unpowered state, as compressed air enters the input chamber, the piston rod of the telescopic component 53 in the dust collection switching device 4 begins to move and remains extended. One end of the piston rod is connected to the sealing plate 54, which pulls the sealing plate 54 downwards to achieve a synchronous effect, thereby sealing the inlet 551 of the dust collection hood 55. When it is necessary to clean wood chips, the piston rod in the telescopic component 53 remains retracted, driving the sealing plate 54 upwards to open the inlet 551 of the dust collection hood 55. The opening size of the inlet 551 is controlled according to the amount of processed wood chips. Ultimately, this reduces the dust collection air volume, improves the working efficiency of the external (central) dust collection equipment, and avoids continuously maintaining a dust collection state when the unprocessed board 8 is being cleaned.

[0031] Furthermore, the dust-blocking assembly 4 includes a dust collector plate 41, a first dust cover plate 42, a second dust cover plate 43, and a third dust cover plate 44. The first dust cover plate 42 and the second dust cover plate 43 are respectively provided on both sides of the dust collector plate 41 located at the bottom end. The third dust cover plate 44 is provided at at least one end of the dust collector plate 41. The outlet 40 is provided between the bottom end of the third dust cover plate 44 and the dust collector plate 41. The second dust cover 43 is composed of multiple inclined panels 431 assembled sequentially.

[0032] In this embodiment, as Figures 4 to 5 As shown, the dustproof assembly 4 is fixedly connected to the frame 1 by the fixing plates on both sides and the support plate at the bottom. Specifically, the processing debris generated during processing will fall to various positions under the action of gravity. The processing debris from different positions will be blocked and collected by the first dust cover plate 42, the second dust cover plate 43 and the third dust cover plate 44, and finally fall into the dust collection plate 41 below. The second dust cover plate 43 is located on the side closer to the processing device 3, and more processing debris will slide naturally down the inclined surface of the partition plate 431 of the second dust cover plate 43 into the dust collection plate 41 below.

[0033] The second dust cover 43 is usually composed of three separate plates 431: left dust cover one, left dust cover two, and left dust cover three, which fits the frame 1 and other components better.

[0034] Furthermore, the dust-blocking assembly 4 also includes multiple first dust-blocking plates 45 that are sequentially spliced ​​together, and the first dust-blocking plates 45 are vertically arranged at the top of the second dustproof cover plate 43; The dustproof assembly 4 also includes a second dustproof plate 46 that is inclinedly disposed on the frame 1, and the second dustproof plate 46 abuts against the upper surface of one end of the second dustproof cover plate 43.

[0035] To catch more processing debris, this embodiment also provides multiple first dust baffles 45 on the second dust cover 43. The first dust baffles 45 can be composed of a right dust baffle and a left dust baffle. The second dust baffle 46 is inclinedly arranged on one side of the first dust baffle 45, with the two partially overlapping. The lower end of the second dust baffle 46 abuts against the left dust cover of the second dust cover 43. The first dust baffles 45 and the second dust baffle 46 are both fixed in the hollow position of the frame 1, which can further prevent processing debris from leaking out.

[0036] Furthermore, the dust scraper assembly 6 includes a mounting bracket 61, a rubber sheet 62, and a pressure strip 63. The mounting bracket 61 is detachably disposed at the bottom end of the processing device 3. The rubber sheet 62 is detachably disposed on at least one side of the mounting bracket 61 via the pressure strip 63, and the bottom end of the rubber sheet 62 extends into the dust blocking assembly 4.

[0037] like Figure 7 and Figure 9 As shown, the rubber 62 of the dust scraper assembly 6 is mounted on the mounting bracket 61 via a pressure strip 63. The mounting bracket 61 is fixed to the bottom of the processing device 3 by bolts. Typically, the width of the rubber 62 is slightly smaller than the inner diameter of the bottom of the dust baffle assembly 4, and the bottom of the rubber 62 is close to / directly in contact with the bottom of the dust baffle assembly 4, which facilitates scraping the processing debris in the dust baffle assembly 4 into the dust suction switching assembly 5.

[0038] In different embodiments, rubber sheets 62 can be installed on one or both sides of the mounting bracket 61, preferably on both sides of the mounting bracket 61 for better dust removal effect. In addition, to improve the effect of the rubber sheets 62 in scraping away processing debris, two or more rubber sheets 62 can be stacked together and fixed to the side of the mounting bracket 61 at the same time.

[0039] Specifically, this utility model also proposes a CNC drilling center, including the aforementioned dust removal structure, wherein the CNC drilling center further includes: A workbench 7 is disposed at the top of the frame 1, and the workbench 7 is used to place the sheet metal 8 to be processed; The processing device 3 is used to drill holes in the plate 8.

[0040] This CNC drilling center includes any of the aforementioned dust removal structures, and therefore has the same beneficial effects as these structures, which will not be elaborated further here. In addition, the frame 1 of the CNC drilling center is equipped with a worktable 7. The worktable 7 typically consists of three spaced-apart panels with gaps between them for machining clearance. The rightmost panel can move freely to accommodate plates 8 of different sizes. The machining device 3 on the frame 1 is used to drill holes in the plates 8 on the worktable 7. Typically, the machining device 3 is located below the plates 8, with its top extending into the aforementioned machining gaps to drill holes in the plates 8 on the upper part of the worktable 7.

[0041] Furthermore, the processing device 3 includes a lower headstock 31, a base 32, a transverse moving component 33, a vertical moving component 34, a lower drill bit 35, and a rotary drive component 36. The lower headstock 31 is mounted on the frame 1. The base 32 is movably mounted on the lower headstock 31 via the transverse moving component 33. The vertical moving component 34 is mounted on the base 32. The lower drill bit 35 and the rotary drive component 36 are mounted on the vertical moving component 34. The rotary drive component 36 is connected to the lower drill bit 35 to drive the lower drill bit 35 to rotate. A plurality of drill bits 351 are spaced apart on the lower drill bit 35.

[0042] like Figures 6 to 7 As shown, the lower drilling bag 35 of the processing device 3 is provided with multiple drill bits 351 arranged side by side. The drill bits 351 are used to drill holes in the plate 8. In order to facilitate the processing of different areas of the plate 8, the lower drilling bag 35 can move freely through the cooperation of the vertical moving component 34, the horizontal moving component 33 and the rotary drive component 36 to complete the drilling operation on the plate 8.

[0043] Furthermore, the air blowing assembly 2 is disposed at the upper end of the lower drill bag 35, and the air blowing pipe 21 of the air blowing assembly 2 is provided with a plurality of air outlet holes 211, the air outlet holes 211 being directly opposite the gaps between the drill bits 351 that are spaced apart.

[0044] In this embodiment, the air blowing assembly 2 is located at the upper end of the lower drill pack 35, specifically fixed to the top of the slide plate 352 of the lower drill pack 35. The air blowing assembly 2 consists of a first straight pipe, an air blowing block, a second straight pipe, and an air blowing pipe 21. It blows air through a connected air supply device to remove machining debris from the lower drill pack 35 in the processing device 3. In particular, the air blowing pipe 21 is provided with multiple air outlets 211, for example, three air outlets 211 can be provided for dust removal. Each air outlet 211 is directly facing the gap area between two adjacent drill bits 351, so as to better remove the accumulated machining debris.

[0045] Furthermore, the lateral movement assembly 33 includes a first drive member 331, a gear 332, a rack 333, a lateral guide rail 334, and a first slider 335. The rack 333 and the lateral guide rail 334 are arranged laterally on one side of the lower headstock 31. The rack 333 and the lateral guide rail 334 are spaced apart. The first drive member 331 is disposed on the base 32, and the output end of the first drive member 331 passes through the back side of the base 32 and is connected to the gear 332. The gear 332 is meshed on the rack 333. The back side of the base 32 is also provided with the first slider 335, which is slidably disposed on the lateral guide rail 334.

[0046] In this embodiment, a transverse guide rail 334 and a rack 333 are fixedly connected to the lower headstock 31. The slider 2-10 is fixedly connected to the back side of the base 32 and forms a sliding pair with the transverse guide rail 334 to ensure that the base 32 can move left and right. The first drive member 331 (which can actually be a motor) is fixed to the base 32 by fixing plate bolts. The output end of the first drive member 331 is provided with a gear 332. The gear 332 meshes with the rack 333-4 to convert the power of the motor rotation into transverse force, so as to drive the vertical moving component 34 and the lower drill bag 35 to reciprocate left and right.

[0047] Furthermore, the vertical moving component 34 includes a second driving module, a vertical guide rail 342, and a second slider 343. The second driving module is connected to the lower drill bag 35 to drive the lower drill bag 35 to move up and down. The base 32 is provided with the second slider 343 on its front side, the back side of the lower drill bag 35 is connected to the slide plate 352, the slide plate 352 is provided with the vertical guide rail 342, and the second slider 343 is slidably disposed on the vertical guide rail 342.

[0048] In this embodiment, the second drive module of the vertical moving component 34 can be an existing Z-axis cylinder or lead screw moving structure, for example, the second drive module specifically connects the motor output shaft and the lead screw through a coupling, and the lead screw seat is fixed on the slide plate 352 to drive the lower drill bag 35 to move up and down to perform drilling operations on the plate 8.

[0049] When the lower drill bag 35 moves up and down, it is also guided by the cooperation of the vertical guide rail 342 and the second slider 343. The vertical guide rail 342 and the second slider 343 form a guide rail slider group. A slide plate 352 (the two are detachably connected) can be set on the back side of the lower drill bag 35. The slide plate 352 is provided with two vertically spaced vertical guide rails 342, and the base 32 is provided with two corresponding rows of second sliders 343. Through the sliding connection of the guide rail slider group, the lower drill bag 35 can be stably moved up and down.

[0050] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A dust removing structure characterized by comprising: include: The frame (1) is equipped with a processing device (3); An air blowing assembly (2) is disposed on the processing device (3) and is used to blow away processing debris on the processing device (3); A dust-blocking assembly (4) is detachably mounted on the frame (1) and is used to collect processing debris. A dust extraction switching assembly (5) is detachably mounted on the frame (1) and is located at the outlet (40) of the dust blocking assembly (4). The dust extraction switching assembly (5) is used to collect the processing debris inside the dust blocking assembly (4) and control the amount of processing debris discharged. The dust scraping assembly (6) is mounted on the processing device (3), which is movably mounted on the frame (1) to drive the dust scraping assembly (6) to sweep the processing debris in the dust blocking assembly (4) to the dust suction switching assembly (5).

2. The dust removal structure according to claim 1, characterized in that, The vacuum switching assembly (5) includes a dust collection hopper (52), a telescopic component (53), a sealing plate (54), and a vacuum hood (55). One end of the dust collection hopper (52) is connected to the outlet (40) of the dust blocking assembly (4), and the other end of the dust collection hopper (52) is connected to the inlet (551) of the vacuum hood (55). The vacuum hood (55) is connected to the vacuuming equipment in the outside world. The dust hood (55) has a vertically movable sealing plate (54) inserted at its inlet (551). The telescopic member (53) is mounted on the dust hood (55), and the output end of the telescopic member (53) is connected to the sealing plate (54) to drive the sealing plate (54) to move up and down, thereby controlling the size of the inlet (551) of the dust hood (55) and thus controlling the amount of processing debris discharged.

3. The dust removal structure according to claim 1, characterized in that, The dust-blocking assembly (4) includes a dust collector plate (41), a first dust cover plate (42), a second dust cover plate (43), and a third dust cover plate (44). The first dust cover plate (42) and the second dust cover plate (43) are respectively provided on both sides of the dust collector plate (41) at the bottom end. The third dust cover plate (44) is provided at at least one end of the dust collector plate (41). The outlet (40) is located between the bottom end of the third dust cover plate (44) and the dust collector plate (41). The second dust cover (43) is composed of multiple inclined panels (431) assembled in sequence.

4. The dust removal structure according to claim 3, characterized in that, The dust-blocking assembly (4) also includes multiple first dust-blocking plates (45) spliced ​​together in sequence, with the first dust-blocking plates (45) vertically arranged at the top of the second dustproof cover plate (43); The dustproof assembly (4) further includes a second dustproof plate (46) inclinedly disposed on the frame (1), the second dustproof plate (46) abutting against the upper surface of one end of the second dustproof cover (43).

5. The dust removal structure according to claim 1, characterized in that, The dust scraper assembly (6) includes a mounting bracket (61), a rubber sheet (62), and a pressure strip (63). The mounting bracket (61) is detachably disposed at the bottom end of the processing device (3). The rubber sheet (62) is detachably disposed on at least one side of the mounting bracket (61) via the pressure strip (63), and the bottom end of the rubber sheet (62) extends into the dust blocking assembly (4).

6. A CNC drilling center, characterized in that, Including the dust removal structure as described in any one of claims 1-5, and the CNC drilling center further includes: A workbench (7) is provided at the top of the frame (1) and is used to place the sheet metal (8) to be processed. The processing device (3) is used to drill holes in the plate (8).

7. A CNC drilling center according to claim 6, characterized in that, The processing device (3) includes a lower headstock (31), a base (32), a transverse moving component (33), a vertical moving component (34), a lower drill bag (35), and a rotary drive component (36). The lower headstock (31) is mounted on the frame (1). The base (32) is movably mounted on the lower headstock (31) via the transverse moving component (33). The vertical moving component (34) is mounted on the base (32). The lower drill bag (35) and the rotary drive component (36) are mounted on the vertical moving component (34). The rotary drive component (36) is connected to the lower drill bag (35) to drive the lower drill bag (35) to rotate. Multiple drill bits (351) are spaced apart on the lower drill bag (35).

8. A CNC drilling center according to claim 7, characterized in that, The air blowing assembly (2) is located at the upper end of the lower drill bag (35), and the air blowing pipe (21) of the air blowing assembly (2) is provided with a plurality of air outlet holes (211), which are directly opposite the gaps between the drill bits (351) that are spaced apart.

9. A CNC drilling center according to claim 7, characterized in that, The lateral movement component (33) includes a first drive member (331), a gear (332), a rack (333), a lateral guide rail (334), and a first slider (335). The rack (333) and the lateral guide rail (334) are arranged laterally on one side of the lower headstock (31). The rack (333) and the lateral guide rail (334) are spaced apart. The first drive member (331) is disposed on the base (32), and the output end of the first drive member (331) passes through the back side of the base (32) and is connected to the gear (332). The gear (332) is meshed on the rack (333). The back side of the base (32) is also provided with the first slider (335), which is slidably disposed on the lateral guide rail (334).

10. A CNC drilling center according to claim 7, characterized in that, The vertical moving component (34) includes a second driving module, a vertical guide rail (342), and a second slider (343). The second driving module is connected to the lower drill bag (35) to drive the lower drill bag (35) to move up and down. The base (32) is provided with the second slider (343) on the front side, the back side of the lower drill bag (35) is connected to the slide plate (352), the slide plate (352) is provided with the vertical guide rail (342), and the second slider (343) is slidably disposed on the vertical guide rail (342).

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