A protective device for CNC machine tools

Abstract

The utility model discloses a protective device for a numerically controlled machine tool, comprising a numerically controlled machine tool and a protective door movably arranged on the numerically controlled machine tool, an observation window being arranged on the protective door, a cleaning mechanism for cleaning the observation window being arranged on the inner side of the protective door, the cleaning mechanism comprising a magnetic scraper assembly and a driving assembly for driving the magnetic scraper assembly to move left and right, the magnetic scraper assembly comprising a moving plate, on which an electromagnet plate and a scraper are respectively fixedly mounted; the utility model arranges a cleaning mechanism, comprising a magnetic scraper assembly and a driving assembly, wherein the electromagnet plate moves on a side close to the observation window under the drive of the driving assembly so as to absorb iron filings and residues thereon, and the scraper removes coolant on the observation window, thereby effectively cleaning the observation window on the protective door, keeping the field of vision clear, and improving the operator's ability to observe and monitor the working state of the numerically controlled machine tool.

Description

Technical Field

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

[0002] CNC machine tools are machine tools that achieve automated processing through computer control systems. They control the movement and processing of tools through pre-written CNC programs to achieve precise processing of workpieces. CNC machine tools have the characteristics of high precision, high efficiency, and strong flexibility, and are widely used in various metal processing fields, such as turning, milling, drilling, etc. Compared with traditional machine tools, CNC machine tools have higher processing accuracy and stability, can realize the processing of complex workpieces, and improve production efficiency and product quality.

[0003] However, when processing parts, the cutting tool head heats up, so it is necessary to continuously spray coolant on it, which causes the coolant and the iron chips produced by cutting to easily splash onto the observation window, causing the observation window to be blurred, affecting the operator's observation of the working progress and status of the machine tool. In addition, the existing CNC machine tool protection device only uses a scraper to wipe the coolant on the observation window, which causes the scraper to scratch the observation window during the wiping process. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the coolant of the CNC machine tool during the processing is easily splashed onto the observation window by the iron chips produced by cutting, causing the observation window to be blurred, affecting the operator's observation of the working process and status of the machine tool, and the existing CNC machine tool protection device only uses a scraper to wipe the coolant on the observation window, resulting in the scraper and the iron chips causing scratches on the observation window during the erasing process.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: providing a protective device for a CNC machine tool, comprising a CNC machine tool and a protective door movably arranged on the CNC machine tool, the protective door being provided with an observation window, the inner side of the protective door being provided with a cleaning mechanism for cleaning the observation window, the cleaning mechanism comprising a magnetic scraper assembly and a driving assembly for driving the magnetic scraper assembly to move left and right, the magnetic scraper assembly comprising a moving plate, and the moving plate being fixedly mounted with an electromagnet plate and a scraper respectively.

[0006] Furthermore, the drive assembly includes four screw seats, which are fixedly arranged on the inner side of the protective door and located on the left and right sides of the observation window. Two screws are evenly distributed and rotatably installed on the four screw seats. Synchronous wheels are fixedly arranged on the two screws, and the two synchronous wheels are connected by synchronous belt transmission. A motor is fixedly installed on the inner side of the protective door, and the output end of the motor is fixedly connected to one of the screws; a protective cover for protecting the drive assembly is installed on the inner side of the protective door by screws.

[0007] Furthermore, threaded holes are provided at both upper and lower ends of the movable plate, and the movable plate is screwed onto the two screw rods through the threaded holes at both ends.

[0008] Furthermore, there is a gap between the plate surface of the electromagnet plate and the observation window; the scraping surface of the scraper is higher than the plate surface of the electromagnet plate so as to be in close contact with the observation window.

[0009] Furthermore, the scraper is made of silicone or rubber.

[0010] Furthermore, the CNC machine tool is provided with a control unit, and the motor and the electromagnet plate are electrically connected to the control unit.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model is provided with a cleaning mechanism, including a magnetic scraper assembly and a driving assembly, wherein the electromagnet plate is driven by the driving assembly to move on the side close to the observation window to absorb the iron filings and residues thereon, and the scraper removes the cutting fluid on the observation window, thereby effectively cleaning the observation window on the protective door, maintaining a clear field of vision, and improving the operator's ability to observe and monitor the working status of the CNC machine tool.

[0013] 2. The structural design of the screw and synchronous wheel in the drive assembly makes the drive assembly run smoothly, ensuring the stability of the magnetic scraper assembly during the cleaning process and avoiding adverse effects caused by vibration or imbalance.

[0014] 3. The motor and electromagnet plate are electrically connected to the control unit, which realizes the precise control of the cleaning process. The cleaning frequency and cleaning method can be adjusted according to actual needs, thus improving the flexibility and applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the CNC machine tool in the utility model;

[0016] Figure 2 It is a schematic diagram of the outer side of the protective door in the utility model;

[0017] Figure 3This is a schematic diagram of the structure of the inner side of the protective door in the utility model;

[0018] Figure 4 It is a schematic diagram of the magnetic scraper assembly in the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the inner side of the protective door in the utility model.

[0020] In the figure: 1-CNC machine tool, 2-protective door, 3-observation window, 4-magnetic scraper assembly, 5-drive assembly, 6-control unit;

[0021] 41-moving plate, 42-electromagnet plate, 43-scraper, 51-screw seat, 52-screw, 53-synchronous wheel, 54-synchronous belt, 55-motor, 56-protective cover. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] Combination Figures 1 to 5 A protective device for a CNC machine tool shown in the figure comprises a CNC machine tool 1 and a protective door 2 movably arranged on the CNC machine tool 1, an observation window 3 is arranged on the protective door 2, a cleaning mechanism for cleaning the observation window 3 is arranged on the inner side of the protective door 2, the cleaning mechanism comprises a magnetic scraper assembly 4 and a driving assembly 5 for driving the magnetic scraper assembly 4 to move left and right, the magnetic scraper assembly 4 comprises a moving plate 41, and an electromagnetic iron plate 42 and a scraper 43 are fixedly mounted on the moving plate 41 respectively;

[0025] Among them, the driving assembly 5 includes four screw rod seats 51, which are fixedly arranged on the inner side of the protective door 2 and located on the left and right sides of the observation window 3. Two screw rods 52 are evenly distributed and rotatably installed on the four screw rod seats 51. Synchronous wheels 53 are fixedly arranged on the two screw rods 52. The two synchronous wheels 53 are connected through a synchronous belt 54. A motor 55 is fixedly installed on the inner side of the protective door 2, and the output end of the motor 55 is fixedly connected to one of the screw rods 52; a protective cover 56 for protecting the driving assembly 5 is installed on the inner side of the protective door 2 by screws; threaded holes are arranged at the upper and lower ends of the moving plate 41, and the moving plate 41 is screwed to the two screw rods 52 through the threaded holes at both ends; there is a gap between the plate surface of the electromagnetic plate 42 and the observation window 3; the scraping surface of the scraper 43 is higher than the plate surface of the electromagnetic plate 42 to be close to the observation window 3; the scraper 43 is made of silicone or rubber; a control unit 6 is provided on the CNC machine tool 1, and the motor 55 and the electromagnetic plate 42 are electrically connected to the control unit 6.

[0026] Working principle: When in use, the motor 55 is started by operating the control unit 6, and the motor 55 drives the screw rod 52 to rotate. The screw rod 52 drives the synchronous wheel 53 to rotate through the synchronous belt 54, so that the two screw rods 52 rotate, thereby driving the movable plate 41 screwed thereon to move left and right. During the movement of the movable plate 41, the electromagnet plate 42 is started at the same time, and the iron filings on the observation window 3 are sucked onto the electromagnet plate 42 by magnetic attraction, so as to achieve the purpose of removing the iron filings. Subsequently, as the movable plate 41 moves, the scraper 43 is close to the observation window 3 and scrapes off the coolant that blocks the line of sight. Finally, the motor 55 reverses the movable plate 41 to reset. During the resetting process, the scraper 43 scrapes and cleans the observation window 3 again, thereby effectively cleaning the observation window on the protective door and keeping the field of vision clear. The iron filings on the electromagnet plate 42 can be blown off by turning off the power and using the air gun provided with the CNC machine tool.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A protective device for a numerically controlled machine tool, comprising a numerically controlled machine tool (1) and a protective door (2) movably arranged on the numerically controlled machine tool (1), wherein the protective door (2) is provided with an observation window (3), characterized in that: A cleaning mechanism for cleaning the observation window (3) is provided on the inner side of the protective door (2), the cleaning mechanism comprising a magnetic scraper assembly (4) and a driving assembly (5) for driving the magnetic scraper assembly (4) to move left and right, the magnetic scraper assembly (4) comprising a moving plate (41), on which an electromagnet plate (42) and a scraper (43) are respectively fixedly mounted.

2. The protective device for a CNC machine tool according to claim 1, characterized in that: The driving assembly (5) comprises four screw rod seats (51), the screw rod seats (51) are fixedly arranged on the inner side of the protective door (2) and located on the left and right sides of the observation window (3), two screw rods (52) are evenly distributed and rotatably mounted on the four screw rod seats (51), and synchronous wheels (53) are fixedly arranged on the two screw rods (52), and the two synchronous wheels (53) are connected by transmission via a synchronous belt (54). A motor (55) is fixedly installed on the inner side of the protective door (2), and the output end of the motor (55) is fixedly connected to one of the screw rods (52); a protective cover (56) for protecting the driving assembly (5) is installed on the inner side of the protective door (2) by screws.

3. The protective device for a CNC machine tool according to claim 2, characterized in that: The movable plate (41) is provided with threaded holes at both upper and lower ends, and the movable plate (41) is screwed onto the two screw rods (52) through the threaded holes at both ends.

4. The protective device for a CNC machine tool according to claim 3, characterized in that: There is a gap between the plate surface of the electromagnet plate (42) and the observation window (3); the scraping surface of the scraper (43) is higher than the plate surface of the electromagnet plate (42) so as to be in close contact with the observation window (3).

5. The protective device for a CNC machine tool according to claim 4, characterized in that: The scraper (43) is made of silica gel or rubber.

6. The protective device for a CNC machine tool according to claim 5, characterized in that: The numerically controlled machine tool (1) is provided with a control unit (6), and the motor (55) and the electromagnetic plate (42) are electrically connected to the control unit (6).

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