Dust removal device for numerical control machine tool

Abstract

The utility model is applicable to the field of numerical control machine tools, and provides a dust removal device for a numerical control machine tool, which comprises an air passage arranged in the machine tool, a plurality of air ports distributed along the extending direction of the air passage, and blocking grids mounted at the air ports, the blocking grating comprises a fixed grating and a plurality of blocking plates, wherein a plurality of airflow through openings are formed in the working face of the fixed grating, and the blocking plates are movably installed on the fixed grating. The blocking plate is arranged corresponding to the airflow through hole and can open and close the airflow through hole; a starting structure for completely or partially opening the plurality of plugging plates is arranged in the air passage; the starting structure comprises a shifting rod which moves in the arrangement direction of the plugging plates and can rotate and a shifting piece arranged on the shifting rod. When the blocking plate is opened, the shifting rod rotates, and the blocking plate is directly or indirectly pressed through the shifting piece, so that the blocking grating can be locally or completely opened through the starting structure, the number and the position of the opening can be adjusted in the local state, and the problem that the adsorption efficiency is low when the cutting position is located between the two air ports can be solved.

Description

Technical Field

[0001] The utility model relates to the field of numerical control machine tools, in particular to a dust removal device for a numerical control machine tool. Background Art

[0002] A numerical control machine tool, abbreviated as a CNC machine tool, is an automated machine tool equipped with a program control system. The numerical control machine tool includes various types of processing equipment such as numerical control cutting, numerical control milling machines, and numerical control drilling machines. During the processing process, dust or debris will inevitably be generated. For example, in a numerical control laser cutting device, the laser is used to melt the plate to achieve the purpose of cutting. During the melting process, a large amount of smoke and dust will appear.

[0003] In the existing dust removal device for a numerical control machine tool, an air duct that generates negative pressure suction is provided at the bottom of the numerical control machine tool (the air duct is connected to a dust removal bin). A plurality of air ports are provided on the air duct, and a blocking grid is installed at each air port. During the dust treatment process, the air port at the corresponding position is opened according to the cutting position to suck away the dust. The purpose of opening them individually is to ensure the concentrated adsorption of the air flow. When multiple air ports are opened, the adsorption effect is dispersed and the adsorption efficiency is low.

[0004] However, the existing blocking grid structure is relatively simple and only realizes overall opening or overall closing. When the cutting position 00 is between two air ports, only a single air port can be opened or two air ports can be opened simultaneously, making it difficult to ensure the adsorption efficiency.

[0005] In summary, it is obvious that there are inconveniences and defects in the prior art in actual use, so it is necessary to improve it. Summary of the Utility Model

[0006] Aiming at the above-mentioned defects, the purpose of the utility model is to provide a dust removal device for a numerical control machine tool, which can locally or completely open the blocking grid through a starting structure, and in the local state, the number and position of the openings can be adjusted, so as to solve the problem of low adsorption efficiency when the cutting position is between two air ports.

[0007] To achieve the above purpose, the utility model provides a dust removal device for a numerical control machine tool, including an air duct arranged in the machine tool, a plurality of air ports distributed along the extending direction of the air duct, and a blocking grid installed at the air ports; the blocking grid includes a fixed grid with a plurality of air circulation openings opened on the working surface and a plurality of plugging plates movably installed on the fixed grid; the plugging plates are arranged corresponding to the air circulation openings and can open and close them; a starting structure for completely or partially opening the plurality of plugging plates is arranged inside the air duct; the starting structure includes a dial rod that moves along the arrangement direction of the plugging plates and can rotate itself and a dial piece arranged on the dial rod; when opening the plugging plates, the dial rod rotates, and directly or indirectly presses the plugging plates through the dial piece.

[0008] According to the dust removal device for a numerically controlled machine tool of the present utility model, the blocking plate is installed on the fixed grille in a hinged manner, and an elastic member for driving the blocking plate to remain in a closed state without external force is installed at the hinge.

[0009] According to the dust removal device for a numerically controlled machine tool of the present utility model, a conversion pressing member is hinged at the air flow opening; the dial is a flat plate structure; when the dial rod rotates, the conversion pressing member is pressed to rotate through the dial, and the blocking plate is pressed to open.

[0010] According to the dust removal device for a numerically controlled machine tool of the present utility model, the end of the dial rod is connected to a telescopic member; the dial rod passes through a rotation drive.

[0011] According to the dust removal device for a numerically controlled machine tool of the present utility model, the conversion pressing member is an angle plate.

[0012] According to the dust removal device for a numerically controlled machine tool of the present utility model, the rotation drive includes a fixed outer cylinder and an inner cylinder that rotates relative to it; a rotation positioning structure is provided between the inner cylinder and the dial rod.

[0013] The present utility model provides a dust removal device for a numerically controlled machine tool, which includes an air duct arranged in the machine tool, a plurality of air ports distributed along the extension direction of the air duct, and a blocking grille installed at the air ports; most of the air ducts are metal pipes, and the size and interval of the air ports can be set as required. The blocking grille includes a fixed grille with a plurality of air flow openings on the working surface and a plurality of blocking plates movably installed on the fixed grille. The fixed grille is fixedly installed on the air duct (it can be fixed by bolts); the blocking plates are arranged corresponding to the air flow openings and can be opened and closed. When the blocking plates are in the open state, the air flow carrying dust can enter the air duct through the corresponding air flow openings. When the blocking plates are in the closed state, the air flow openings are closed. An activation structure for fully or partially opening a plurality of blocking plates is arranged inside the air duct, and the activation structure can perform activation work on one or more blocking plates; through this structure, when the cutting position is between two air ports, the two air ports can be locally opened, while ensuring the size of the air flow. The local opening state is as shown in the figure, and efficient adsorption work can be achieved. As shown in the figure, both are in a semi-open state, and the opening positions are both close to the processing position of the plate member. Therefore, on the premise of ensuring the air flow (the air flow of two semi-openings is equal to the air flow of one opening, and the air pressure is sufficient), the opening is closer to the processing position of the plate member. The present utility model can locally or fully open the blocking grille through the activation structure, and in the local state, the number and position of the openings can be adjusted, which can solve the problem of low adsorption efficiency when the cutting position is between two air ports. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural view of the blocking grille of the present utility model;

[0015] Figure 2 is Figure 1 a schematic structural view at the first angle of

[0016] Figure 3 a distribution diagram of the air inlets of the present utility model;

[0017] Figure 4 is Figure 2 a schematic structural view at the first angle of

[0018] Figure 5 a side view of the conversion pressing member;

[0019] In the figure, 1 - air duct, 2 - air inlet, 3 - blocking grid, 31 - fixed grid, 32 - blocking plate, 4 - lever, 5 - paddle, 6 - conversion pressing member, 71 - outer cylinder, 72 - inner cylinder. Specific embodiments

[0020] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] Refer to Figure 1 , Figure 2 and Figure 3 , the present utility model provides a dust removal device for a numerical control machine tool. The dust removal device for the numerical control machine tool includes an air duct 1 arranged in the machine tool, a plurality of air inlets 2 distributed along the extending direction of the air duct 1, and a blocking grid 3 installed at the air inlets 2; most of the air duct 1 is a metal pipe, and the size and interval of the air inlets 2 can be set as required.

[0022] The blocking grid 3 includes a fixed grid 31 with a plurality of air circulation openings formed on the working surface and a plurality of blocking plates 32 movably installed on the fixed grid 31. The fixed grid 31 is fixedly installed on the air duct 1 (it can be fixed by bolts); the blocking plates 32 are arranged corresponding to the air circulation openings and can be opened and closed. When the blocking plates 32 are in the open state, the airflow carrying dust can enter the air duct 1 through the corresponding air circulation openings. When the blocking plates 32 are in the closed state, the air circulation openings are closed.

[0023] Inside the air duct 1, a starting structure for fully or partially opening a plurality of blocking plates 32 is provided. The starting structure can start one or more blocking plates 32; through this structure, when the cutting position is between two air ports, the two air ports can be locally opened to ensure the size of the air flow. The locally opened state is as shown in the figure, and efficient adsorption work can be achieved. As shown in the figure, both are in a semi-open state, and the opening positions are both close to the processing position of the plate member. Therefore, on the premise of ensuring the air flow (the air flow of two semi-openings is equal to that of one opening, and the air pressure is sufficient), the opening is closer to the processing position of the plate member.

[0024] In this embodiment, the blocking plate 32 is installed on the fixed grille 31 in a hinged manner, and an elastic member for driving the blocking plate 32 to remain in a closed state without external force is installed at the hinge. A torsion spring can be used as the elastic member. The elastic member can provide the force for the blocking plate 32 to automatically enter the closed state after losing the external force in the open state.

[0025] See Figure 1 、 Figure 2 and Figure 4 As shown, the starting structure includes a lever 4 that moves along the arrangement direction of the blocking plates 32 and can rotate, and a flap 5 provided on the lever 4; when opening the blocking plate 32, the lever 4 rotates, and the blocking plate 32 is directly or indirectly pressed through the flap 5. When locally or fully opening a plurality of air flow openings, only the position of the lever 4 needs to be adjusted so that the adjustment range of the flap 5 completely or partially coincides with the coverage range of the plurality of blocking plates 32.

[0026] Specifically in this embodiment, a conversion pressing member 6 is hinged at the air flow opening; the flap 5 is a flat plate structure; when the lever 4 rotates, the conversion pressing member 6 is pressed to rotate through the flap 5 (the conversion pressing member 6 can be an angle plate), and the blocking plate 32 is pressed to open. Through the above structure, the flap 5 does not need to extend into the air flow opening, reducing the corresponding problems of components during opening. The end of the lever 4 is connected to a telescopic member (a cylinder can be used); the lever 4 passes through a rotation drive.

[0027] During operation, the telescopic member drives the lever 4 to move axially to adjust the coincidence degree between the adjustment range of the flap 5 and the coverage range of the plurality of blocking plates 32, and adjust the opening quantity and position of the plurality of air flow openings.

[0028] During the opening process, only when the rotation drive rotates, it will further drive the lever 4 and the flap 5 to rotate, and the blocking plate 32 is pressed to open through the conversion pressing member 6.

[0029] Among them, the rotation driver includes a fixed outer cylinder 71 and an inner cylinder 72 that rotates relative to it; the rotation driving mode of the inner cylinder 72 can adopt electromagnetic drive or be driven by a micro motor through a gear structure.

[0030] See Figure 5 , a rotation positioning structure is provided between the inner cylinder 72 and the lever 4, and a spline or single key structure can be adopted for this rotation positioning structure.

[0031] In summary, the present utility model provides a dust removal device for a numerical control machine tool, including an air duct arranged inside the machine tool, a plurality of air ports distributed along the extending direction of the air duct, and a blocking grille installed at the air ports; most of the air ducts are metal pipes, and the size and interval of the air ports can be set as required. The blocking grille includes a fixed grille with a plurality of air circulation openings formed on the working surface and a plurality of blocking plates movably installed on the fixed grille. The fixed grille is fixedly installed on the air duct (it can be fixed by bolts); the blocking plates are arranged corresponding to the air circulation openings and can open and close them. When the blocking plates are in the open state, the airflow carrying dust can enter the air duct through the corresponding air circulation openings. When the blocking plates are in the closed state, the air circulation openings are closed. An activation structure for fully or partially opening a plurality of blocking plates is arranged inside the air duct, and the activation structure can activate one or more blocking plates; through this structure, when the cutting position is between two air ports, local opening of the two air ports can be achieved, while ensuring the size of the air flow rate. The local opening state is as shown in the figure, and efficient adsorption work can be realized. As shown in the figure, both are in a semi-open state, and the opening positions are both close to the processing position of the plate member. Therefore, on the premise of ensuring the air flow rate (the air flow rate of two semi-openings is equal to that of one opening, and the air pressure is sufficient), the opening is closer to the processing position of the plate member. The present utility model can locally or fully open the blocking grille through the activation structure, and in the local state, the number and position of the openings can be adjusted, which can solve the problem of low adsorption efficiency when the cutting position is between two air ports.

[0032] Of course, the present utility model can also have many other embodiments. Without departing from the spirit and essence of the present utility model, those skilled in the art can make various corresponding changes and deformations according to the present utility model, but these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present utility model.

Claims

1. A dust removal device for a CNC machine tool, characterized in that: It includes an airway arranged in a machine tool, a plurality of air ports distributed along the extending direction of the airway, and a blocking grille installed at the air ports; The blocking grille includes a fixed grille with a plurality of airflow openings on the working surface and a plurality of blocking plates movably mounted on the fixed grille; the blocking plates are arranged corresponding to the airflow openings and can be opened and closed; The airway is provided with a start-up structure for fully or partially opening the plurality of blocking plates; The starting structure includes a lever that moves along the arrangement direction of the blocking plates and can rotate, and a paddle arranged on the lever; When the blocking plate is opened, the lever is rotated to directly or indirectly press the blocking plate through the paddle.

2. The dust removal device for CNC machine tools according to claim 1, characterized in that: The blocking plate is hingedly mounted on the fixed grid, and an elastic member is mounted at the hinge to drive the blocking plate to remain in a closed state without external force.

3. The dust removal device for CNC machine tools according to claim 1 or 2, characterized in that: A conversion pressing piece is hinged at the air flow opening; the paddle is a flat plate structure; The lever is rotated, and the pressing piece is pressed by the paddle to rotate the pressing member, so that the blocking plate is pressed to open.

4. The dust removal device for CNC machine tools according to claim 1, characterized in that: The end of the shifting rod is connected to a telescopic member; the shifting rod passes through a rotating driver.

5. The dust removal device for CNC machine tools according to claim 3, characterized in that: The conversion pressing piece is an angle plate.

6. The dust removal device for CNC machine tools according to claim 4, characterized in that: The rotary driver comprises a fixed outer cylinder and an inner cylinder rotating relative to the outer cylinder; A rotation positioning structure is arranged between the inner cylinder and the shifting rod.

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