Device for removing chips from a numerically controlled machine tool

Abstract

The utility model discloses a device is cleared for numerical control machine tool powder scrap belongs to clearing device technical field, including dust extraction pipe, dust extraction pipe one end intercommunication has the separating pipe, prevents the blocking mechanism, the blocking mechanism includes the expansion block of setting in the dust extraction pipe, expansion block one side outer wall is connected with the connecting plate, the connecting plate one side outer wall is connected with the scraper, expansion block is configured as along perpendicular to the dust extraction pipe inner wall movement and drive the scraper movement, separating mechanism, separating mechanism includes the eddy current device of setting in the separating pipe, the eddy current device is configured to the connecting place of dust extraction pipe and separating pipe, the eddy current device passes through the blade and produces high -speed eddy current separation powder scrap, in the utility model, through setting up the blocking mechanism can full -automatic cleaning dust extraction pipe inner wall adhesion's powder scrap prevents the blockage, through setting up separating mechanism can separate the powder scrap of air inclusion, guarantees the clean operation environment.

Description

Technical Field

[0001] This utility model belongs to the technical field of cleaning devices, and particularly relates to a cleaning device for CNC machine tool dust removal. Background Technology

[0002] When CNC machine tools perform cutting or grinding operations, the high-speed friction between the cutting tool and the workpiece generates metal chips. When the grinding wheel comes into contact with the workpiece, it generates metal oxides and abrasive particles. The chips are mainly metal particles such as iron, aluminum, and copper, and some contain oxides such as silicon and chromium. Accumulation of metal dust may cause wear on guide rails and bearings, or oil mist may adhere to circuit boards and cause short circuits. At the same time, dust may also block the cooling system, affecting the heat dissipation of the cutting tool and the machining accuracy. The chips may also be dispersed into the air, polluting the operating environment and endangering the health of workers.

[0003] Existing CNC machine tool dust removal devices often suffer from dust accumulation issues. In cases of high humidity or sticky dust, the dust tends to adhere to the inner wall of the suction pipe during transport, leading to blockages and significantly impacting suction efficiency. Cleaning requires pipe disassembly, disrupting production continuity and hindering automated continuous operation. Furthermore, existing dust removal devices typically employ a single filtration method, which is prone to rapid dust blockage, increasing wind resistance and reducing suction power. High-concentration dust flows can generate eddies in the collection chamber, causing collected dust to flow back and become airborne. Some fine dust particles can even penetrate the filter and be directly discharged into the workshop environment by the fan, causing secondary air pollution and failing to meet clean production requirements. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing CNC machine tool dust removal devices require disassembly and cleaning due to pipe blockage and rely on a single filtration device, and to propose a dust removal device for CNC machine tools.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dust removal device for CNC machine tools, comprising a dust suction pipe, one end of which is connected to a separation pipe; an anti-clogging mechanism, the anti-clogging mechanism comprising an expansion block disposed inside the dust suction pipe, a connecting plate connected to one outer wall of the expansion block, and a scraper connected to one outer wall of the connecting plate; the expansion block is configured to move along a path perpendicular to the inner wall of the dust suction pipe and drive the scraper to move; and a separation mechanism, the separation mechanism comprising a vortex generator disposed inside the separation pipe, the vortex generator being disposed at the connection between the dust suction pipe and the separation pipe, the vortex generator generating a high-speed vortex through its blades to separate the dust.

[0006] Preferably, the anti-clogging mechanism further includes a protective shell disposed inside the suction pipe, the bottom inner wall of the protective shell is connected to a fixed column, and the outer wall of the fixed column is slidably connected to two sliding frames, the two sliding frames overlapping each other.

[0007] Preferably, a lead screw is rotatably connected to the top of the fixed column, the lead screw passes through the axis of the two sliding frames, and a motor is installed on the inner wall of the top of the protective shell, the output end of the motor is connected to one end of the lead screw.

[0008] Preferably, the outer wall of the sliding frame is provided with a rotating seat, and the rotating seat is rotatably connected to two rotating rods, one end of each of the two rotating rods being rotatably connected to a corresponding position on one side of the outer wall of the expansion block.

[0009] Preferably, the inner wall of the suction pipe is connected to a mounting bracket, and an electric push rod is installed between the mounting brackets. The push rod of the electric push rod is connected to the outer wall of the top of the protective shell.

[0010] Preferably, a dust collection pipe is connected to the bottom outer wall of one side of the separation pipe, two baffles are provided on the inner wall of the dust collection pipe, and a dust collection box is connected to the bottom end of the dust collection pipe.

[0011] Preferably, one end of the separation tube is connected to a filter tube, the filter tube contains two filter plates, and a fan is installed at one end of the filter tube.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. In this utility model, by setting an anti-blocking mechanism, the expansion block can be controlled to drive the scraper to unfold and retract, and the scraper can be made to reciprocate against the inner wall of the suction pipe, preventing dust from adhering to the suction pipe and clogging it. The suction pipe can be quickly unblocked without disassembling the device, which improves the ease of use of the device.

[0013] 2. In this utility model, by setting a separation mechanism, the powder of the suction device is centrifugally separated by eddy current. Most of the powder can be separated and collected. By setting a baffle to prevent backflow of powder, the remaining small part of powder is filtered and intercepted by a filter plate, so that the air drawn out by the fan is clean and dust-free, preventing the collected powder from drifting into the environment and ensuring the cleanliness of the operating environment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of the dust removal device for CNC machine tools proposed in this utility model; Figure 2 This is a schematic diagram showing the disassembled structure of the dust removal device for CNC machine tools proposed in this utility model; Figure 3 This is a schematic diagram of the anti-clogging mechanism of the dust removal device for CNC machine tools proposed in this utility model; Figure 4 This is a half-sectional schematic diagram of the anti-clogging mechanism of the dust removal device for CNC machine tools proposed in this utility model; Figure 5 This is a schematic diagram of the separation mechanism of the dust removal device for CNC machine tools proposed in this utility model.

[0015] Legend: 1. Suction pipe; 2. Mounting bracket; 3. Anti-clogging mechanism; 301. Protective shell; 302. Fixing column; 303. Lead screw; 304. Sliding frame; 305. Rotating seat; 306. Rotating rod; 307. Expansion block; 308. Connecting plate; 309. Scraper; 310. Motor; 311. Electric push rod; 4. Separation pipe; 5. Separation mechanism; 501. Vortex generator; 502. Dust collection pipe; 503. Baffle; 504. Dust collection box; 505. Filter plate; 6. Filter pipe; 7. Fan. Detailed Implementation

[0016] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-5 This utility model provides a technical solution: a dust removal device for CNC machine tools, including a dust suction pipe 1, one end of which is connected to a separation pipe 4, an anti-blocking mechanism 3, which includes an expansion block 307 disposed inside the dust suction pipe 1, a connecting plate 308 connected to one outer wall of the expansion block 307, a scraper 309 connected to one outer wall of the connecting plate 308, the expansion block 307 being configured to move along a path perpendicular to the inner wall of the dust suction pipe 1 and drive the scraper 309 to move, and a separation mechanism 5, which includes a vortex generator 501 disposed inside the separation pipe 4, the vortex generator 501 being disposed at the connection between the dust suction pipe 1 and the separation pipe 4, the vortex generator 501 generating a high-speed vortex through its blades to separate the dust.

[0018] The anti-clogging mechanism 3 also includes a protective shell 301 installed inside the suction pipe 1. A fixed post 302 is connected to the inner wall of the bottom of the protective shell 301. Two sliding frames 304 are slidably connected to the outer wall of the fixed post 302, and the two sliding frames 304 overlap each other.

[0019] A lead screw 303 is rotatably connected to the top of the fixed column 302. The lead screw 303 passes through the axis of the two sliding frames 304. A motor 310 is installed on the inner wall of the top of the protective shell 301. The output end of the motor 310 is connected to one end of the lead screw 303.

[0020] The outer wall of the sliding frame 304 is provided with a rotating seat 305, and the rotating seat 305 is rotatably connected to two rotating rods 306. One end of each of the two rotating rods 306 is rotatably connected to a corresponding position on one side of the outer wall of the expansion block 307.

[0021] The inner wall of the suction pipe 1 is connected to the mounting bracket 2, and an electric push rod 311 is installed between the mounting brackets 2. The push rod of the electric push rod 311 is connected to the top outer wall of the protective shell 301.

[0022] Specifically, in the initial state of the anti-blocking mechanism 3, the expansion block 307 is housed inside the protective shell 301, the outer wall of the scraper 309 is on the same plane as the outer wall of the protective shell 301, the motor 310 drives the lead screw 303 to rotate through the output end, the external thread of the lead screw 303 engages with the internal thread of the sliding frame 304, allowing the sliding frame 304 to move along the direction of the lead screw 303, the outer wall of the fixed column 302 is provided with multiple sliding grooves around the axis, the outer wall of the sliding frame 304 is slidably connected to the inner wall of the sliding groove, when the sliding frame 304 moves along the direction of the lead screw 303 and approaches the fixed column 302, the bottom of the expansion block 307 abuts against the bottom of the protective shell 301, one end of the rotating rod 306 rotates away from the fixed column 302 with the connection of the rotating seat 305 as the axis, and the other end of the rotating rod pushes the expansion block 307 outward, the expansion block 307 moves outward and passes through the connecting plate 30 8. Push the scraper 309 to unfold it. When the side wall of the rotating column is parallel to the bottom inner wall of the protective shell 301, the scraper 309 is fully unfolded and fits against the inner wall of the suction pipe 1. The electric push rod 311 pushes the protective shell 301 to move as a whole. The protective shell 301 drives the scraper 309 to move, so that the scraper 309 scrapes across the inner wall of the suction pipe 1, removing the dust adhering to the inner wall of the suction pipe 1 to prevent clogging of the suction pipe 1. After repeating this cycle several times, the motor 310 runs in the opposite direction. The sliding frame 304 moves along the direction of the lead screw 303 and away from the fixed column 302. One end of the rotating rod 306 rotates with the rotating seat 305 as the axis towards the fixed column 302. The other end of the rotating column pulls the expansion block 307 inward. The expansion block 307 moves inward and pulls the scraper 309 through the connecting plate 308 to retract the scraper 309, so that the anti-clogging mechanism 3 returns to its initial state.

[0023] It should be noted that the selection of motor 310 and control unit in the above description should be selected as needed. This part is well-known technology in the field and will not be elaborated here.

[0024] It should be noted that the electric actuator 311 described above is a new type of linear actuator composed of a motor 310, an actuator, and a control device. It is an electric drive device that converts the rotary motion of the electric motor into the linear reciprocating motion of the actuator. This part is well-known technology in the field and will not be described in detail here.

[0025] A dust collection pipe 502 is connected to the bottom outer wall of one side of the separation pipe 4. Two baffles 503 are provided on the inner wall of the dust collection pipe 502. A dust collection box 504 is connected to the bottom end of the dust collection pipe 502.

[0026] One end of the separation pipe 4 is connected to the filter pipe 6, and two filter plates 505 are installed inside the filter pipe 6. A fan 7 is installed at one end of the filter pipe 6.

[0027] Specifically, the fan 7 draws air out of the device, creating negative pressure. External air enters the device through the suction pipe 1, forming an airflow. When the airflow reaches the separator 4, it passes through the vortex generator 501. The vortex generator 501, with multiple arc-shaped blades surrounding its outer wall, creates vortices as the airflow passes through. The centrifugal force generated by the vortex throws the dust particles carried in the airflow outward. After hitting the outer wall of the separator 4, the dust particles fall into the dust collection pipe 502. The baffle 503 has an arc-shaped cross-section, and the falling dust particles continue to fall along the arc surface of the baffle 503 into the collection pipe. In the dust box 504, the dust collection box 504 and the dust collection pipe 502 are connected by a snap-fit. The baffle 503 intercepts the dust in the dust collection box 504 to prevent newly fallen dust from agitating the collected dust and causing the dust to flow back into the separation pipe 4. Most of the dust in the airflow is separated by the vortex generator 501, and a small portion of the remaining dust continues to follow the airflow and reaches the filter pipe 6. The filter pipe 6 is connected to the separation pipe 4 by a pin. The remaining dust is filtered and intercepted by the filter plate 505 installed inside the filter pipe 6, so that the air drawn out by the fan 7 remains clean.

[0028] It should be further explained that, as described above, the vortex generator 501 causes air to flow at high speed tangentially over the blade surface, and the gas forms a vortex under the action of centrifugal force. This part is well known in the field and will not be described in detail here.

[0029] It should be further noted that the selection of the fan 7 and the control system mentioned above are selected as needed. This part is well-known technology in the field and will not be elaborated here.

[0030] It should be further explained that the buckle mentioned above is a device in the field of mechanical engineering that connects parts through locking components. It uses elastic deformation and friction mechanism to fix the parts. This part is a well-known technology in the field and will not be elaborated here.

[0031] Working principle: During use, the operator aligns the suction pipe 1 with the area of ​​the CNC machine tool where dust needs to be removed, then starts the fan 7. The device sucks in the accumulated dust on the CNC machine tool and concentrates it in the dust collection box 504. After the dust is removed, the operator starts the motor 310, causing the expansion block 307 to push the scraper 309 outward until it is in contact with the outer wall of the suction pipe 1. Then, the operator starts the electric push rod 311, causing the scraper 309 to reciprocate along the inner wall of the suction pipe 1, thereby scraping off the dust adhering to the inner wall of the suction pipe 1. After the dust on the inner wall of the suction pipe 1 is scraped off, the operator reverses the motor 310, causing the expansion block 307 to retract and the scraper 309 to return to its original position. When it is necessary to clean the dust inside the device, the operator removes the dust collection box 504 to clean the dust collected inside. Then, the operator removes the filter pipe 6 to clean the dust filtered on the filter plate 505. After cleaning, all parts are reinstalled in their original positions.

[0032] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for removing dust from CNC machine tools, characterized in that, include: A vacuum tube (1) is connected to a separation tube (4) at one end. The anti-clogging mechanism (3) includes an expansion block (307) disposed inside the suction pipe (1), a connecting plate (308) is connected to one side of the outer wall of the expansion block (307), and a scraper (309) is connected to one side of the outer wall of the connecting plate (308). The expansion block (307) is configured to move along the inner wall of the suction pipe (1) perpendicular to it and drive the scraper (309) to move. The separation mechanism (5) includes a vortex generator (501) disposed in the separation tube (4). The vortex generator (501) is located at the connection between the dust suction tube (1) and the separation tube (4). The vortex generator (501) generates a high-speed vortex to separate dust particles through its blades.

2. The dust removal device for CNC machine tools according to claim 1, characterized in that, The anti-blocking mechanism (3) also includes a protective shell (301) installed inside the suction pipe (1). The bottom inner wall of the protective shell (301) is connected to a fixed column (302). The outer wall of the fixed column (302) is slidably connected to two sliding frames (304), and the two sliding frames (304) overlap each other.

3. The dust removal device for CNC machine tools according to claim 2, characterized in that, The top of the fixed column (302) is rotatably connected to a lead screw (303), which passes through the axis of the two sliding frames (304). A motor (310) is installed on the inner wall of the top of the protective shell (301), and the output end of the motor (310) is connected to one end of the lead screw (303).

4. The dust removal device for CNC machine tools according to claim 2, characterized in that, The outer wall of the sliding frame (304) is provided with a rotating seat (305), and the rotating seat (305) is rotatably connected to two rotating rods (306). One end of each of the two rotating rods (306) is rotatably connected to a corresponding position on one side of the outer wall of the expansion block (307).

5. The dust removal device for CNC machine tools according to claim 1, characterized in that, The inner wall of the suction pipe (1) is connected to a mounting bracket (2), and an electric push rod (311) is installed between the mounting brackets (2). The push rod of the electric push rod (311) is connected to the top outer wall of the protective shell (301).

6. The dust removal device for CNC machine tools according to claim 1, characterized in that, The bottom outer wall of the separation tube (4) is connected to a dust collection tube (502), and the inner wall of the dust collection tube (502) is provided with two baffles (503). The bottom end of the dust collection tube (502) is connected to a dust collection box (504).

7. The dust removal device for CNC machine tools according to claim 1, characterized in that, One end of the separation tube (4) is connected to the filter tube (6), and two filter plates (505) are provided inside the filter tube (6). A fan (7) is installed at one end of the filter tube (6).

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