Protective structure for automatic machine tool and automatic machine tool

Abstract

The invention discloses a protection structure for an automatic machine tool and the automatic machine tool, and the protection structure for the automatic machine tool comprises a machine tool protection cover which comprises a loading and unloading window and a door groove which are communicated with each other in the first direction, and the loading and unloading window penetrates through the first surface and the second surface of the machine tool protection cover; wherein the first direction is parallel to the horizontal plane; the protective door is arranged in the machine tool protective cover; wherein in the opening state, the protective door is located in the door groove, and in the closing state, the protective door covers the loading and unloading window; the driving device is arranged in the machine tool protective cover, and the driving device comprises a driving motor; wherein the driving motor is connected with the top of the protective door, and the driving motor is used for driving the protective door to move. In this way, the working safety and stability of the automatic machine tool can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machine tools, in particular to a protection structure for an automatic machine tool and the automatic machine tool. BACKGROUND

[0002] In the field of modern mechanical manufacturing, the side door automatic door mechanism of the automatic machine tool generally adopts an up-and-down door opening structure. The cylinder is an external cylinder that exceeds the large cover. The cylinder is perpendicular to the top of the side cover. When the cylinder is aerated, the side door is lifted upward to open. The space occupancy rate of this structure is large, and the machine tool is easy to be damaged during transportation.

[0003] Therefore, how to improve the safety and stability of the automatic machine tool has become a problem to be solved. SUMMARY

[0004] The technical problem solved by the present application is to provide a protection structure for an automatic machine tool and an automatic machine tool, which can improve the safety and stability of the automatic machine tool.

[0005] To solve the above technical problems, one technical solution adopted by the present application is to provide a protection structure for an automatic machine tool, comprising: a machine tool protection cover comprising a loading and unloading window and a door slot that are in communication with each other in a first direction, the loading and unloading window penetrating the first surface and the second surface of the machine tool protection cover; wherein the first direction is parallel to the horizontal plane; a protection door arranged in the machine tool protection cover; wherein in the open state, the protection door is located in the door slot, and in the closed state, the protection door covers the loading and unloading window; a driving device arranged in the machine tool protection cover, the driving device comprising a driving motor; wherein the driving motor is connected to the top of the protection door, and the driving motor is used to drive the protection door to move.

[0006] The machine tool protection cover comprises a driving cavity, and the driving cavity is arranged across the top of the loading and unloading window and the door slot; wherein the driving motor is located in the driving cavity.

[0007] The protection structure for an automatic machine tool further comprises: a protection door support, one end of the protection door support is fixedly connected to the top of the protection door, and the other end is fixedly connected to the driving motor.

[0008] The driving motor is a linear motor, the linear motor comprises a motor stator and a motor rotor that are coupled to each other, the motor stator is fixedly connected to the machine tool protection cover, and the motor rotor is fixedly connected to one end of the protection door support; wherein the motor rotor is used to drive the protection door to slide.

[0009] The protective structure for the automatic machine tool further comprises a fixed support arranged in the driving cavity, and the motor stator is fixedly connected with the fixed support.

[0010] The protective structure for the automatic machine tool further comprises a first detection switch arranged in the driving cavity and close to a first side edge of the driving cavity, wherein the first detection switch is used to detect whether the protective door is in a closed state; and a second detection switch arranged in the driving cavity and close to an intersection of the loading and unloading window and the door slot, wherein the second detection switch is used to detect whether the protective door is in an open state.

[0011] The protective structure for the automatic machine tool further comprises a scrap removing assembly comprising a scrap removing plate and a fixed pressing plate matched with each other, wherein the fixed pressing plate is used to fix the scrap removing plate at an edge of the loading and unloading window close to the processing cabin, and the scrap removing plate comprises a scrap removing edge, at least a part of which is attached to a back surface of the protective door.

[0012] The protective structure for the automatic machine tool further comprises a sliding assembly arranged at a bottom of the loading and unloading window, wherein the sliding assembly comprises a sliding guide rail and at least one roller, the bottom of the protective door is provided with a groove matched with the roller, and at least a part of the roller is located in the groove.

[0013] The protective structure for the automatic machine tool further comprises at least one grating protection cover arranged at an inner side of the loading and unloading window, and a detection grating arranged in the grating protection cover, wherein the detection grating is used to detect an obstacle in a range of the loading and unloading window during opening or closing of the protective door.

[0014] To solve the above technical problems, another technical solution adopted by the present application is to provide an automatic machine tool comprising the protective structure for the automatic machine tool mentioned in the above technical solution.

[0015] The beneficial effects of the present application are: different from the prior art, the present application provides a protective structure for an automatic machine tool, which comprises a machine tool protective cover, a protective door and a driving device. The machine tool protective cover comprises a loading and unloading window and a door groove which are in communication with each other in a first direction, and the first direction is parallel to the horizontal plane. The protective door is located in the door groove in the open state, and covers the loading and unloading window in the closed state. The structure of the loading and unloading window and the door groove which are in communication with each other in the horizontal direction enables the protective door to move transversely to switch to the open or closed state, i.e. the opening and closing of the protective door is realized in the machine tool protective cover. Different from the structure in which the protective door is opened upward, the protective structure for the automatic machine tool provided by the present application does not need to provide space for accommodating the protective door on the top of the machine tool protective cover, while ensuring the processing sealing of the automatic machine tool, reducing the space occupancy of the protective door, and improving the stability of the automatic machine tool operation and the simplicity of the structure. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them: Figure 1 is a structural schematic diagram of the protective structure for the automatic machine tool according to an embodiment of the present application; Figure 2 is a structural schematic diagram of the protective structure for the automatic machine tool according to another embodiment of the present application; Figure 3 is a structural schematic diagram of the driving cavity according to an embodiment of the present application; Figure 4 is a structural schematic diagram of the protective structure for the automatic machine tool according to another embodiment of the present application; Figure 5 is a structural schematic diagram of the protective structure for the automatic machine tool according to another embodiment of the present application. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments, and the embodiments can be adaptively combined. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0018] It should be noted that the terms "first" and "second" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0019] In the description of this application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of one embodiment of the protective structure for automatic machine tools according to this application. Figure 2 This is a schematic diagram of another embodiment of the protective structure for automatic machine tools according to this application. The protective structure for automatic machine tools includes a machine tool protective cover 10, a protective door 20, and a drive device 30. Specifically: The machine tool protective cover 10 includes a loading / unloading window 11 and a door slot 12 that are interconnected in a first direction. The loading / unloading window 11 passes through the first surface 101 and the second surface (not shown) of the machine tool protective cover 10. The first direction is parallel to the horizontal plane.

[0021] Specifically, the automatic machine tool includes a machine tool protective cover 10. In response to the generation of waste materials such as splashed liquid and iron filings during the machining process of the workpiece, the machine tool protective cover 10 isolates the machining chamber of the automatic machine tool from the external space to prevent waste materials from entering the external space of the automatic machine tool and causing contamination. Furthermore, the machine tool protective cover 10 includes a loading / unloading window 11 and a door slot 12, which are interconnected in a first direction. In the thickness direction of the machine tool protective cover 10, the machine tool protective cover 10 includes a first surface 101 and a second surface disposed opposite to each other, and the loading / unloading window 11 penetrates the first surface 101 and the second surface. The loading / unloading window 11 is used for loading or unloading workpieces, and the door slot 12 is used to accommodate a protective door 20.

[0022] The protective door 20 is installed inside the machine tool protective cover 10. In the open state, the protective door 20 is located in the door slot 12, and in the closed state, the protective door 20 covers the loading and unloading window 11.

[0023] Specifically, during the processing of the workpiece, the protective door 20 is used to prevent waste material from entering the external space of the automatic machine tool through the loading / unloading window 11 of the machine tool protective cover 10. When the protective door 20 is open, it moves into the door slot 12 of the machine tool protective cover 10, allowing the external space of the automatic machine tool to connect with the processing chamber of the automatic machine tool through the loading / unloading window 11, facilitating loading and unloading within the processing chamber. Since the loading / unloading window 11 and the door slot 12 are connected in a first direction parallel to the horizontal plane, when the protective door 20 switches from the open state to the closed state, it moves along the first direction from within the door slot 12 until it covers the loading / unloading window 11, thus sealing the processing chamber. Furthermore, when the protective door 20 switches back from the closed state to the open state, it moves in the opposite direction of the first direction until it is completely within the door slot 12.

[0024] Preferably, the protective door 20 has a honeycomb sandwich structure and is made of carbon fiber reinforced composite material, which is a lightweight and high-strength composite material door panel. This structure helps reduce the inertia of the protective door 20 during movement and reduces the failure rate.

[0025] The drive unit 30 is disposed inside the machine tool protective cover 10, and the drive unit 30 includes a drive motor. The drive motor is connected to the top of the protective door 20 and is used to drive the protective door 20 to move.

[0026] Specifically, the drive device 30 is disposed inside the machine tool protective cover 10 and is located at the top of the loading / unloading window 11 and the door slot 12, that is, the vertical projection of the drive device 30 overlaps with at least a portion of the loading / unloading window 11 and the door slot 12. To drive the protective door 20 to move laterally, the drive device 30 includes a drive motor 40 connected to the protective door 20, and the drive motor 40 is connected to the top of the protective door 20.

[0027] This application proposes a protective structure for automatic machine tools, comprising at least a machine tool protective cover 10, a protective door 20, and a drive device 30. The machine tool protective cover 10 includes a loading / unloading window 11 and a door groove 12 that are interconnected in a first direction parallel to the horizontal plane. The protective door 20 is located within the door groove 12 when open and covers the loading / unloading window 11 when closed. The horizontally interconnected structure of the loading / unloading window 11 and door groove 12 allows the protective door 20 to move laterally to switch between open and closed states, thus enabling the opening and closing of the protective door 20 to be achieved within the machine tool protective cover 10. Unlike structures where the protective door 20 opens upwards, the protective structure for automatic machine tools proposed in this application eliminates the need for space at the top of the machine tool protective cover 10 to accommodate the protective door 20. This reduces the space occupied by the protective door 20 while ensuring the sealing performance of the automatic machine tool, thereby improving the stability and structural simplicity of the automatic machine tool operation.

[0028] In one implementation, please refer to Figure 3 , Figure 3 This is a schematic diagram of the structure of a corresponding embodiment of the drive cavity in this application. The machine tool protective cover 10 includes a drive cavity 13, which spans the top of the loading / unloading window 11 and the door slot 12. The drive motor 40 is located inside the drive cavity 13.

[0029] Specifically, a drive cavity 13 is provided at the top inside the machine tool protective cover 10, which is used to house the drive device 30. By placing the drive device 30 at the top inside the machine tool protective cover 10, it is possible to effectively prevent the drive mechanism from jamming, corroding, or short-circuiting due to chips and coolant generated during machining, thereby extending the service life of the drive device 30 and making the automatic machine tool look simple and beautiful.

[0030] In one embodiment, the protective structure for automatic machine tools proposed in this application further includes a protective door bracket (not shown), one end of which is fixedly connected to the top of the protective door 20, and the other end is fixedly connected to the drive motor 40, so that the drive motor 40 runs to drive the protective door 20 to move laterally.

[0031] Specifically, in order to facilitate the connection between the protective door 20 and the drive motor 40 so that the drive motor 40 can drive the protective door 20 to move laterally, a protective door bracket is provided on the top of the protective door 20, and one end of the protective door bracket is located in the drive cavity 13 so that the drive motor 40 is fixedly connected to the end of the protective door bracket located in the drive cavity 13, and when the drive motor 40 is working, it drives the protective door 20 to move through the protective door bracket.

[0032] In some implementation scenarios, the drive cavity 13 includes a lower base plate, which separates the drive cavity 13 from the loading / unloading window 11 and the door slot 12. The lower base plate of the drive cavity 13 is provided with a through slot extending in a first direction, and one end of the aforementioned protective door bracket is disposed in the drive cavity 13 through the through slot.

[0033] In one embodiment, the drive motor 40 is a linear motor, which includes a motor stator 41 and a motor mover 42 coupled to each other. The motor stator 41 is fixedly connected to the machine tool protective cover 10, and the motor mover 42 is fixedly connected to one end of the protective door bracket. The motor mover 42 is used to drive the protective door 20 to slide.

[0034] Specifically, the machine tool protective cover 10 includes a first side 14 and a second side 15 arranged opposite each other in the horizontal direction. The first side 14 is close to the loading and unloading window 11, and the second side 15 is close to the door slot 12. The aforementioned motor stator 41 extends along a first direction within the drive cavity 13, and is used to support the movement of the motor mover 42. One end of the motor stator 41 is fixedly connected to the inner wall of the first side 14 within the drive cavity 13. During the operation of the linear motor, the motor stator 41 generates a moving electromagnetic field to drive the motor mover 42 to move along the first direction or in the opposite direction.

[0035] In one embodiment, to improve the stability of the linear motor operation, the protective structure for automatic machine tools proposed in this application further includes a fixed bracket (not shown). The fixed bracket is disposed within the drive cavity 13 and fixed to the inner wall of the drive cavity 13. The motor stator 41 is fixedly connected to the fixed bracket to improve the stability of the motor stator 41 installation within the drive cavity 13.

[0036] In one embodiment, the protective structure for an automatic machine tool proposed in this application further includes a first detection switch 51 and a second detection switch 52. The first detection switch 51 is disposed within the drive cavity 13 and is located near the first side 14 within the drive cavity 13. The first detection switch 51 is used to detect whether the protective door 20 is in a closed state.

[0037] Furthermore, a second detection switch 52 is disposed within the drive cavity 13, and the second detection switch 52 is located near the junction of the loading / unloading window 11 and the door slot 12. The second detection switch 52 is used to detect whether the protective door 20 is in the open state.

[0038] Specifically, a first switch bracket (not shown) is provided near the first side 14 inside the drive cavity 13; and a second switch bracket (not shown) is provided inside the drive cavity 13, the second switch bracket being located near the straight line where the loading / unloading window 11 and the door slot 12 meet. The first switch bracket is used to install the aforementioned first detection switch 51, and the second switch bracket is used to install the aforementioned second detection switch 52.

[0039] In some implementation scenarios, the first detection switch 51 and the second detection switch 52 are used to detect the position of the motor mover 42 within the drive cavity 13. When the first detection switch 51 detects that the motor mover 42 has moved to a position close to the first side 14, it generates a first state signal, which indicates that the protective door 20 is in a closed state; or, when the second detection switch 52 detects that the motor mover 42 has moved to a position close to the second side 15, it generates a second state signal, which indicates that the protective door 20 is in an open state.

[0040] In some implementation scenarios, the first detection switch 51 and the second detection switch 52 can be contact sensors. When the motor actuator 42 contacts the first detection switch 51, it indicates that the protective door 20 covers the loading / unloading window 11, and the first detection switch 51 generates a first state signal indicating that the protective door 20 is in the closed state; or, when the motor actuator 42 contacts the second detection switch 52, it indicates that the protective door 20 has entered the door slot 12, and the second detection switch 52 generates a second state signal indicating that the protective door 20 is in the open state. By detecting whether the protective door 20 is in the open or closed state through the first detection switch 51 and the second detection switch 52, and generating the aforementioned first and second state signals, relevant technicians are prompted whether the workpiece has been processed and to proceed with loading or unloading, thereby improving the processing efficiency of the automatic machine tool.

[0041] Optionally, in other implementation scenarios, the first detection switch 51 and the second detection switch 52 described above can also be distance sensors. Specifically, the first detection switch 51 is used to detect a first distance between itself and the motor stator 41. When the first distance is less than a distance threshold, a first state signal is generated to indicate that the protective door 20 is in a closed state. And, the second detection switch 52 is used to detect a second distance between itself and the motor stator 41. When the second distance is less than a distance threshold, a second state signal is generated to indicate that the protective door 20 is in a started state.

[0042] In one implementation, please refer to Figure 4 , Figure 4 This is a schematic diagram of another embodiment of the protective structure for automatic machine tools proposed in this application. The protective structure for automatic machine tools proposed in this application also includes a chip scraper assembly 60. The chip scraper assembly 60 includes a matching chip scraper plate 61 and a fixing plate 62. The fixing plate 62 is used to fix the chip scraper plate 61 to the inner wall of the loading / unloading window 11. The chip scraper plate 61 includes a chip scraping edge, at least a portion of which is in contact with the back of the protective door 20.

[0043] Specifically, the scraper 61 includes scraping edges for removing residual liquids and waste materials such as iron filings from the back of the protective door 20. When the scraper 61 is fixed to the inner wall of the loading / unloading window 11 by the fixing plate 62, the scraping edges face the external space of the automatic machine tool. Furthermore, during the opening or closing of the protective door 20, at least a portion of the scraping edges adheres to the back of the protective door 20 to improve the cleaning effect on the back of the protective door 20.

[0044] In some implementation scenarios, the edge of the scraper is made of rubber to avoid damaging the protective door 20 during the scraping process.

[0045] In one embodiment, the aforementioned scraper assembly 60 is movably connected to the inner wall of the loading / unloading window 11 via an active adjustment device. During the opening or closing of the protective door 20, the active adjustment device is used to control the scraper assembly 60 to move toward the back side of the protective door 20 until the scraper assembly 60 is in contact with the back side of the protective door 20.

[0046] In some implementation scenarios, the active adjustment device includes a pressure monitoring sensor to monitor the pressure between the scraper assembly 60 and other objects. When the protective door 20 is opened or closed, the active adjustment device moves the scraper assembly 60 towards the back of the protective door 20 and monitors the real-time pressure between the scraper assembly 60 and the protective door 20. When the real-time pressure reaches a preset pressure threshold, the active adjustment device stops operating, thus pressing the scraper assembly 60 against the back of the protective door 20, improving the effectiveness of the scraper assembly 60 in removing residues during the operation of the protective door 20. Furthermore, the active adjustment device controls the degree of contact between the scraper assembly 60 and the protective door 20 based on the real-time pressure, which helps improve the scraping effect and avoids the probability of the scraper assembly 60 not being tightly attached due to factors such as deformation of the protective door 20.

[0047] In one embodiment, the protective structure for automatic machine tools proposed in this application further includes a sliding assembly. The sliding assembly is disposed at the bottom of the loading and unloading window 11, and includes a sliding guide rail (not shown) and at least one roller (not shown). The bottom of the protective door 20 is provided with a groove (not shown) that matches the roller, and at least a portion of the roller is located in the groove.

[0048] In some implementation scenarios, the sliding guide rail includes two oppositely arranged ends, one end of which is fixedly connected to the first side 14 of the machine tool protective cover 10, and the other end is fixedly connected to the second side 15 of the machine tool protective cover 10. At least one roller is provided on the sliding guide rail. Furthermore, the bottom of the protective door 20 is provided with a groove matching the roller, which is used to accommodate at least a portion of the roller. During the operation of the automatic machine tool, the drive motor 40 applies a lateral force to the protective door 20, causing the bottom of the protective door 20 to move along the sliding guide rail via the roller, reducing the impact of friction and improving the efficiency of the protective door 20's movement.

[0049] In one implementation, please refer to Figure 5 , Figure 5 This is a schematic diagram of another embodiment of the protective structure for automatic machine tools proposed in this application. The protective structure for automatic machine tools proposed in this application also includes at least one grating protective cover 70 and a detection grating (not shown). The grating protective cover 70 is disposed inside the loading / unloading window 11. The aforementioned detection grating is disposed inside the grating protective cover 70. The detection grating is used to detect obstacles within the loading / unloading window 11 during the opening or closing of the protective door 20.

[0050] In some implementation scenarios, the loading / unloading window 11 has a certain thickness. Horizontally, the loading / unloading window 11 includes opposing sides. A grating protective cover 70 is installed on either side of the loading / unloading window 11, and a detection grating is installed inside the grating protective cover 70. The detection grating is used to detect whether an obstacle passes through the loading / unloading window 11 during the opening or closing of the protective door 20. In response to the detection grating detecting an obstacle during the opening or closing of the protective door 20, an alarm signal is generated. This alarm signal is used to control the protective door 20 to stop moving, thus achieving area protection or anti-pinch function.

[0051] Optionally, in other embodiments, in order to improve the accuracy of obstacle detection, grating protective covers 70 are respectively provided on both sides of the loading and unloading window 11, and detection gratings are respectively provided in the grating protective covers 70 on both sides, so that the detection gratings on both sides work together to detect obstacles in the loading and unloading window 11.

[0052] In one implementation, please refer to... Figure 5 The grating protective cover 70 also contains a zone monitoring device, which monitors the corresponding area outside the protective structure to identify large objects. The zone monitoring device generates an early warning signal based on the type of large object identified.

[0053] In some implementation scenarios, the aforementioned large objects are those with a volume exceeding a preset volume threshold, such as forklifts or AGVs. After generating an early warning signal, the area monitoring device sends the signal to relevant technical personnel. This warning signal does not directly interfere with the opening or closing of the protective door, but rather provides information for the linkage between automated machine tools and other equipment.

[0054] In one implementation, please refer to... Figure 5The protective structure for the automatic machine tool proposed in this application also includes a projection warning device 80. This projection warning device 80 is mounted on the machine tool protective cover 10 and is positioned above the protective door 20 in a direction perpendicular to the horizontal plane. When technicians perform adjustments to the machine tool, the protective mechanism switches to adjustment mode, and the projection warning device 80 projects warning light onto the ground to indicate that the machine tool is currently in adjustment mode.

[0055] In one embodiment, the protective structure of the automatic machine tool proposed in this application further includes a controller, which is coupled to the drive device 30, active adjustment device, detection grating, area monitoring device and projection warning device 80 mentioned in the corresponding embodiments above, and controls the operation of the above devices and sensors so that the protective structure can operate.

[0056] This application also proposes an automatic machine tool that includes the protective structure for automatic machine tools mentioned in any of the above embodiments.

[0057] Specifically, the automatic machine tool includes a machining chamber, in which machining tools are installed. The machining chamber is used to accommodate the workpiece to be machined, and the machining tools are used to machine the workpiece. Furthermore, because the automatic machine tool includes the protective structure mentioned in any of the above embodiments, the automatic machine tool possesses superior stability.

[0058] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A protective structure for automatic machine tools, characterized in that, include: A machine tool protective cover includes a loading / unloading window and a door slot that are interconnected in a first direction, the loading / unloading window penetrating a first surface and a second surface of the machine tool protective cover; wherein, the first direction is parallel to a horizontal plane; A protective door is installed inside the machine tool protective cover; wherein, in the open state, the protective door is located in the door slot, and in the closed state, the protective door covers the loading and unloading window; A drive device is disposed inside the machine tool protective cover, and the drive device includes a drive motor; wherein, the drive motor is connected to the top of the protective door, and the drive motor is used to drive the protective door to move.

2. The protective structure for automatic machine tools according to claim 1, characterized in that, The machine tool protective cover includes a drive cavity, which spans the top of the loading / unloading window and the door slot; wherein the drive motor is located inside the drive cavity.

3. The protective structure for automatic machine tools according to claim 2, characterized in that, Also includes: A protective door bracket, one end of which is fixedly connected to the top of the protective door, and the other end of which is fixedly connected to the drive motor.

4. The protective structure for automatic machine tools according to claim 3, characterized in that, The drive motor is a linear motor, which includes a motor stator and a motor mover coupled to each other. The motor stator is fixedly connected to the machine tool protective cover, and the motor mover is fixedly connected to one end of the protective door bracket. The motor mover is used to drive the protective door to slide.

5. The protective structure for automatic machine tools according to claim 4, characterized in that, Also includes: A fixed bracket is disposed inside the drive cavity, and the motor stator is fixedly connected to the fixed bracket.

6. The protective structure for automatic machine tools according to claim 5, characterized in that, Also includes: A first detection switch is disposed within the drive cavity, and the first detection switch is located near a first side of the drive cavity; wherein, the first detection switch is used to detect whether the protective door is in a closed state; A second detection switch is disposed within the drive cavity, and the second detection switch is located near the junction of the loading / unloading window and the door slot; wherein, the second detection switch is used to detect whether the protective door is in the open state.

7. The protective structure for automatic machine tools according to claim 1, characterized in that, Also includes: The chip scraper assembly includes a matching chip scraper and a fixing plate, the fixing plate being used to fix the chip scraper to the edge of the loading / unloading window near the processing compartment; wherein the chip scraper includes a chip scraping edge, at least a portion of which is abutted against the back of the protective door.

8. The protective structure for automatic machine tools according to claim 1, characterized in that, Also includes: A sliding assembly is disposed at the bottom of the loading and unloading window. The sliding assembly includes a sliding guide rail and at least one roller. The bottom of the protective door is provided with a groove that matches the roller, and at least a portion of the roller is located within the groove.

9. The protective structure for automatic machine tools according to claim 1, characterized in that, Also includes: At least one grating protective cover is disposed on the inside of the loading and unloading window; A detection grating is disposed inside the grating protective cover; wherein the detection grating is used to detect obstacles within the loading and unloading window range during the opening or closing of the protective door.

10. An automatic machine tool, characterized in that, The automatic machine tool includes the protective structure for the automatic machine tool as described in any one of claims 1-9.

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