Movable numerical control machine tool protection door
Patent Information
- Application Number
- CN202521998329.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-09-17
AI Technical Summary
Traditional CNC machine tool safety doors require manual operation, which is inconvenient to use and prone to damage.
The protective door is electrically opened and closed by adopting a longitudinal and transverse reinforcing rib structure, combined with a telescopic cylinder and a touch sensor, and the door stability is ensured by positioning pins and connecting seats.
It improves the convenience and structural strength of the security door, and reduces the phenomenon of excessive opening and closing and deformation damage.
Smart Images

Figure CN224927558U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of safety protection technology for CNC machine tools, specifically a movable protective door for CNC machine tools. Background Technology
[0002] As the core equipment of modern manufacturing, CNC machine tools are directly related to product quality and the personal safety of operators in terms of their machining accuracy and operational safety. As a key safety protection device for machine tools, protective doors mainly serve to isolate the cutting area, prevent injury from flying debris, block noise, and prevent coolant leakage. However, traditional protective doors still have many shortcomings in terms of structural design and functional implementation. Therefore, developing a movable CNC machine tool protective door is of great practical significance.
[0003] Referring to a CNC machine tool protective door with announcement number CN215432778U, the protective door includes a CNC machine tool. A protective door mounting frame is installed at the front end of the machine tool, and a protective door is installed inside the mounting frame. The protective door includes two transverse alloy support rods, with longitudinal alloy support rods connected to both ends of adjacent ends of the transverse alloy support rods. This CNC machine tool protective door adds a door panel with an open / close confirmation function, allowing observation of the machine tool's interior. The first and second transparent protective door panels are foldable for easy adjustment of the door's width. A door limit switch facilitates confirmation of the door's opening and closing status. The door can be opened and closed at approximately 180 degrees using first and second pull-out butterfly hinges, facilitating the movement of larger equipment. The door can be positioned using a magnetic latch when closed. As can be seen from the above, while this machine tool protective door has good application potential, it is generally not convenient for electric opening and closing operations; manual operation is required, which makes the operation of the machine tool protective door somewhat inconvenient and needs further improvement. Utility Model Content
[0004] The purpose of this utility model is to provide a movable CNC machine tool protective door to solve the problem mentioned in the background art that although machine tool protective doors can be well applied, they are usually not convenient to open and close electrically and need to be operated manually, which makes the operation of the machine tool protective door inconvenient.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a movable CNC machine tool protective door, comprising a machine tool housing, a U-shaped limiting frame installed on the surface of the machine tool housing, a protective door body provided inside the U-shaped limiting frame, the inner wall of the protective door body contacting the surface of the machine tool housing, the two ends of the protective door body being slidably connected to the inner walls of the two ends of the U-shaped limiting frame, two base plates provided on the surface of the machine tool housing on one side of the U-shaped limiting frame, two slide rails installed on the surface of the base plates, two longitudinal reinforcing ribs slidably installed on one side of each slide rail surface, transverse reinforcing ribs installed on the surface of several longitudinal reinforcing ribs, an L-shaped connecting frame provided on the surface of the transverse reinforcing ribs, the end of the L-shaped connecting frame away from the transverse reinforcing ribs being connected to the outer wall of the protective door body, a telescopic cylinder installed on one side of the base plate surface via a bracket, one end of the telescopic cylinder being connected to the outer wall of the transverse reinforcing ribs, a control panel installed on the surface of the machine tool housing between the base plates, the output end of the microcontroller inside the control panel being electrically connected to the input end of the telescopic cylinder.
[0006] Preferably, longitudinal reinforcing ribs are fixedly installed on both sides of the interior of the protective door, and two transverse reinforcing ribs are fixedly installed on the inner wall between the longitudinal reinforcing ribs. The arrangement of longitudinal and transverse reinforcing ribs enhances the structural strength of the protective door.
[0007] Preferably, a door panel is installed on the surface of the transverse reinforcing rib, the inner wall of the door panel is in contact with the surface of the longitudinal reinforcing rib, and a plurality of locking bolts are installed on the surface of the door panel at the location of the longitudinal reinforcing rib. One end of the locking bolt passes through the door panel and is threadedly connected to the surface of the longitudinal reinforcing rib. The door panel is bolted in place by passing through the door panel and screwing into the surface of the longitudinal reinforcing rib.
[0008] Preferably, a door handle is installed on one side of the door panel surface, and a window frame is provided at the upper end of the interior of the protective door body. A transparent observation window is installed inside the window frame to facilitate observation of the inside of the machine tool.
[0009] Preferably, a component holder is installed on the surface of the machine tool housing near the control panel of the protective door. Two positioning pins are installed on the inner wall of the component holder. One end of the positioning pin passes through the component holder and is threadedly connected to the surface of the machine tool housing. The positioning pins are used to position the component holder on the surface of the machine tool housing.
[0010] Preferably, a connecting seat is provided on the outer wall of the component rack near the protective door. A touch sensor is installed at the end of the connecting seat away from the component rack. The output end of the touch sensor is electrically connected to the input end of the microcontroller inside the control panel. The connecting seat is provided to facilitate the placement of the touch sensor.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the movable CNC machine tool protective door not only improves the convenience of using the machine tool protective door, but also reduces the phenomenon of excessive opening and closing of the protective door body during use, and reduces the phenomenon of deformation and damage during use.
[0012] (1) The two telescopic cylinders are started synchronously to extend and retract, which drives the two transverse reinforcing ribs to move horizontally. The transverse reinforcing ribs drive the longitudinal reinforcing ribs to slide on the surface of the slide rail, so that the transverse reinforcing ribs drive the protective door body to move smoothly inside the U-shaped limit frame via the L-shaped connecting frame. The protective door body can be opened and closed electrically, thereby improving the convenience of using the machine tool protective door.
[0013] (2) The placement frame is bolted to the surface of the machine tool housing by positioning pins, and a touch sensor is installed at one end of the connecting seat on the outer wall of the placement frame. When the protective door moves to the right and contacts the touch sensor, the control panel receives the signal and closes the telescopic cylinder to stop the protective door from moving to the right, thereby reducing the phenomenon of excessive opening and closing of the protective door when the machine tool protective door is in use.
[0014] (3) The protective door is fixedly installed with longitudinal and transverse reinforcing ribs inside the protective door body. The longitudinal reinforcing ribs are installed on the inner walls on both sides of the protective door body, and the transverse reinforcing ribs are installed on the inner wall between the two longitudinal reinforcing ribs to improve the structural strength of the protective door body, thereby reducing the deformation and damage of the machine tool protective door during use. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a front view cross-sectional structural diagram of the protective door body of this utility model;
[0017] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0018] Figure 4 This utility model Figure 1 Enlarged structural diagram at point B.
[0019] In the diagram: 1. Machine tool housing; 2. U-shaped limit frame; 3. Protective door; 4. Door panel; 5. Locking bolt; 6. Door handle; 7. Window frame; 8. Transparent observation window; 9. Base plate; 10. Slide rail; 11. Telescopic cylinder; 12. Control panel; 13. Longitudinal reinforcing rib; 14. Transverse reinforcing rib; 15. L-shaped connecting frame; 16. Parts rack; 17. Connecting seat; 18. Touch sensor; 19. Positioning pin. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0021] Please see Figure 1-4 An embodiment of this utility model provides a movable CNC machine tool protective door, including a machine tool housing 1, a U-shaped limiting frame 2 installed on the surface of the machine tool housing 1, a protective door body 3 provided on the inner side of the U-shaped limiting frame 2, the inner wall of the protective door body 3 contacting the surface of the machine tool housing 1, the two ends of the protective door body 3 being slidably connected to the inner walls of the two ends of the U-shaped limiting frame 2, and longitudinal reinforcing ribs 13 fixedly installed on both sides inside the protective door body 3, and two transverse reinforcing ribs 14 fixedly installed on the inner wall between the longitudinal reinforcing ribs 13;
[0022] In use, the longitudinal reinforcing ribs 13 and the transverse reinforcing ribs 14 are set to improve the structural strength of the protective door body 3;
[0023] A door panel 4 is installed on the surface of the transverse reinforcing rib 14. The inner wall of the door panel 4 is in contact with the surface of the longitudinal reinforcing rib 13. Several locking bolts 5 are installed on the surface of the door panel 4 at the position of the longitudinal reinforcing rib 13. One end of the locking bolt 5 passes through the door panel 4 and is threadedly connected to the surface of the longitudinal reinforcing rib 13.
[0024] In use, one end of the locking bolt 5 passes through the door panel 4 and is screwed into the surface of the longitudinal reinforcing rib 13 so as to bolt the door panel 4 in place.
[0025] A door handle 6 is installed on one side of the surface of the door panel 4, and a window frame 7 is provided at the upper end of the interior of the protective door body 3. A transparent observation window 8 is installed inside the window frame 7.
[0026] When in use, the transparent observation window 8 is set to facilitate easy observation of the inside of the machine tool;
[0027] A component holder 16 is installed on the surface of the machine tool housing 1 on the side of the protective door 3 near the control panel 12. Two positioning pins 19 are installed on the inner wall of the component holder 16. One end of the positioning pin 19 passes through the component holder 16 and is threadedly connected to the surface of the machine tool housing 1.
[0028] In use, the positioning pin 19 is used to position the workpiece holder 16 on the surface of the machine tool housing 1.
[0029] A connecting seat 17 is provided on the outer wall of the shelf 16 near the protective door 3. A touch sensor 18 is installed at the end of the connecting seat 17 away from the shelf 16. The output end of the touch sensor 18 is electrically connected to the input end of the microcontroller inside the control panel 12.
[0030] In use, the touch sensor 18 is positioned by setting the connector 17;
[0031] Two base plates 9 are provided on the surface of the machine tool housing 1 on one side of the U-shaped limit frame 2. Two slide rails 10 are installed on the surface of the base plate 9. Two longitudinal reinforcing ribs 13 are slidably installed on one side of the surface of each slide rail 10. Transverse reinforcing ribs 14 are installed on the surface of several longitudinal reinforcing ribs 13. An L-shaped connecting frame 15 is provided on the surface of the transverse reinforcing ribs 14. The end of the L-shaped connecting frame 15 away from the transverse reinforcing ribs 14 is connected to the outer wall of the protective door 3. A telescopic cylinder 11 is installed on one side of the surface of the base plate 9 through a bracket. One end of the telescopic cylinder 11 is connected to the outer wall of the transverse reinforcing ribs 14. A control panel 12 is installed on the surface of the machine tool housing 1 between the base plates 9. The output terminal of the microcontroller inside the control panel 12 is electrically connected to the input terminal of the telescopic cylinder 11.
[0032] In this embodiment, longitudinal reinforcing ribs 13 and transverse reinforcing ribs 14 are first fixedly installed inside the protective door 3. The longitudinal reinforcing ribs 13 are installed on the inner walls of both sides of the protective door 3, and the transverse reinforcing ribs 14 are installed on the inner wall between the two longitudinal reinforcing ribs 13, thereby improving the structural strength of the protective door 3 and effectively reducing the phenomenon of deformation damage to the protective door 3. Then, two telescopic cylinders 11 are activated synchronously to extend and retract, driving the two transverse reinforcing ribs 14 to translate. The transverse reinforcing ribs 14 drive the longitudinal reinforcing ribs 13 to slide on the surface of the slide rail 10, so that the transverse reinforcing ribs 14 can slide. The reinforcing rib 14, via the L-shaped connecting frame 15, drives the protective door 3 to move smoothly laterally inside the U-shaped limiting frame 2, thus enabling the electric opening and closing of the protective door 3. Finally, the placement frame 16 is bolted to the surface of the machine tool housing 1 via the positioning pin 19. A touch sensor 18 is installed at one end of the connecting seat 17 on the outer wall of the placement frame 16. When the protective door 3 moves to the right and contacts the touch sensor 18, the control panel 12 receives this signal and closes the telescopic cylinder 11 to stop the protective door 3 from moving to the right. This effectively reduces the phenomenon of excessive rightward opening and closing of the protective door 3, thereby completing the use of the machine tool protective door.
Claims
1. A movable protective door for CNC machine tools, characterized in that: The system includes a machine tool housing (1), on the surface of which a U-shaped limiting frame (2) is mounted. A protective door (3) is provided inside the U-shaped limiting frame (2). The inner wall of the protective door (3) contacts the surface of the machine tool housing (1). Both ends of the protective door (3) are slidably connected to the inner walls of both ends of the U-shaped limiting frame (2). Two base plates (9) are provided on the surface of the machine tool housing (1) on one side of the U-shaped limiting frame (2). Two slide rails (10) are mounted on the surface of the base plates (9). Two longitudinal reinforcing ribs (13) are slidably mounted on one side of each slide rail (10). Several of the longitudinal reinforcing ribs (13) are... 13) has a transverse reinforcing rib (14) installed on its surface. The surface of the transverse reinforcing rib (14) is provided with an L-shaped connecting frame (15). The end of the L-shaped connecting frame (15) away from the transverse reinforcing rib (14) is connected to the outer wall of the protective door body (3). A telescopic cylinder (11) is installed on one side of the surface of the substrate (9) through a bracket. One end of the telescopic cylinder (11) is connected to the outer wall of the transverse reinforcing rib (14). A control panel (12) is installed on the surface of the machine tool housing (1) between the substrates (9). The output end of the microcontroller inside the control panel (12) is electrically connected to the input end of the telescopic cylinder (11).
2. The movable CNC machine tool protective door according to claim 1, characterized in that: Both sides of the interior of the protective door (3) are fixedly installed with longitudinal reinforcing ribs (13), and two transverse reinforcing ribs (14) are fixedly installed on the inner wall between the longitudinal reinforcing ribs (13).
3. A movable CNC machine tool protective door according to claim 2, characterized in that: A door panel (4) is installed on the surface of the transverse reinforcing rib (14). The inner wall of the door panel (4) is in contact with the surface of the longitudinal reinforcing rib (13). Several locking bolts (5) are installed on the surface of the door panel (4) at the position of the longitudinal reinforcing rib (13). One end of the locking bolt (5) passes through the door panel (4) and is threadedly connected to the surface of the longitudinal reinforcing rib (13).
4. A movable CNC machine tool protective door according to claim 3, characterized in that: A door handle (6) is installed on one side of the surface of the door panel (4), and a window frame (7) is provided at the upper end of the interior of the protective door body (3), and a transparent observation window (8) is installed inside the window frame (7).
5. A movable CNC machine tool protective door according to claim 1, characterized in that: The protective door (3) has a component holder (16) installed on the surface of the machine tool housing (1) on the side near the control panel (12). Two positioning pins (19) are installed on the inner wall of the component holder (16). One end of the positioning pin (19) passes through the component holder (16) and is threadedly connected to the surface of the machine tool housing (1).
6. A movable CNC machine tool protective door according to claim 5, characterized in that: The outer wall of the shelf (16) near the protective door (3) is provided with a connecting seat (17). A touch sensor (18) is installed at the end of the connecting seat (17) away from the shelf (16). The output end of the touch sensor (18) is electrically connected to the input end of the microcontroller inside the control panel (12).
Citation Information
Patent Citations
Protective door of numerical control machine tool
CN215432778U
