Protection device for numerical control mechanical operation keys
By designing a protective device for CNC machine operation buttons that includes a fixed base frame, rotating rod, closing cover, and desiccant, the problem of traditional protective devices being unable to effectively prevent dust and external impacts is solved. This achieves convenient operation and effective protection of the buttons, ensuring the normal operation of CNC machines and extending their service life.
Patent Information
- Application Number
- CN202520279332.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Traditional CNC machine operation buttons have simple protective devices that cannot effectively prevent dust and debris from entering, and cannot effectively buffer external impacts in industrial environments, which can easily lead to button damage or misoperation, affecting the normal operation of CNC machines.
The device employs a protective structure that includes a fixed base frame, a rotating rod, a closing cover, a protective plate, and a desiccant. By setting up multiple structures that work together, it prevents dust and debris from entering, buffers external impacts, and keeps the environment around the buttons dry to prevent the buttons from getting damp and damaged.
It improves ease of operation, prevents the protective cover from being lost or damaged, effectively avoids button damage and misoperation, and ensures the normal operation of CNC machines and extends their service life.
Smart Images

Figure CN223651296U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC machine technology, and in particular to a protective device for CNC machine operation buttons. Background Technology
[0002] In the process of industrial automation, CNC machines have emerged. With their high precision, high efficiency, and high degree of automation, CNC machines have rapidly gained widespread application in manufacturing and many other fields. CNC machines use operation buttons to input and control various commands; these buttons are key components for human-machine interaction. However, in actual industrial environments, these operation buttons face many potential threats. For example, dust in the workshop can easily enter the button gaps, leading to poor button contact; oil stains from the production process may adhere to the button surface, affecting button sensitivity; and operators may accidentally press buttons during busy work, causing erroneous operations. Therefore, to ensure the normal use of CNC machine operation buttons and extend their service life, the need for button protection has gradually become prominent, forming the basis for the development of protective devices.
[0003] However, for traditional equipment, conventional protective devices are simple in design, mostly fixed plastic covers or metal plates. While this method can prevent dust and debris from entering to some extent, it lacks flexibility. Operators need to frequently remove and reinstall the protective cover when using the buttons, a cumbersome process that not only wastes time but also easily leads to the loss or damage of the cover, affecting subsequent protection. Moreover, traditional protective devices have limited protection for buttons. In industrial production environments, CNC machines may be subjected to accidental collisions, vibrations, or liquid splashes. Ordinary protective covers cannot effectively buffer external impacts. When operators accidentally press buttons, it can easily cause button damage or misoperation, affecting the normal operation of the CNC machine and even potentially leading to production accidents, thus requiring improvement. Utility Model Content
[0004] The purpose of this utility model is to solve the technical problems mentioned in the background art.
[0005] This utility model adopts the following technical solution: a protective device for CNC machine operation buttons, including a fixed base frame, a screw hole through the surface of the fixed base frame, a fixed block fixedly installed on the surface of the fixed base frame, a rotating groove through the surface of the fixed block, a rotating rod sleeved inside the rotating groove, a torsion spring sleeved on the outer surface of the rotating rod, rotating blocks fixedly installed at both ends of the rotating rod, a closing cover fixedly installed on the surface of the rotating block, a limit plate fixedly installed inside the closing cover, a moving groove through the surface of the limit plate, a moving rod sleeved inside the moving groove, a spring one sleeved on the outer surface of the moving rod, a protective plate fixedly installed at the top end of the moving rod, a groove opened at the front end of the fixed base frame, a push button sleeved inside the groove, a moving block fixedly installed on the surface of the push button, a sliding groove through the surface of the moving block, a spring two sleeved inside the groove, a fixed insert fixedly installed at the rear end of the push button, and a fixed plate fixedly installed at the bottom end of the closing cover, with a slot through the surface of the fixed plate.
[0006] Preferably, the surface of the button is fixedly covered with anti-slip particles, which are arranged in multiple groups and arrayed on the surface of the button. The fixing block is shaped like an inverted "L". Here, the anti-slip particles on the surface of the button increase the friction between the operator and the button, making it less likely for the fingers to slip during operation, thus improving the accuracy and convenience of operation.
[0007] Preferably, there are two sets of movable blocks symmetrically distributed on the surface of the button, and two sets of springs symmetrically distributed inside the groove. One end of each spring is fixedly connected to the inner surface of the groove, and the other end is fixedly connected to the surface of the movable blocks. Here, the two sets of symmetrically distributed movable blocks and springs ensure smoother movement of the button within the groove and more even force distribution. The elastic force provided by the springs allows the button to automatically reset after being pressed, facilitating subsequent operation. It also provides a buffering effect, reducing hard impacts between the button and the groove, and extending its service life.
[0008] Preferably, the rotating block is L-shaped, with a rounded bottom end. One end of the first spring is fixedly connected to the surface of the limiting plate, and the other end is fixedly connected to the bottom surface of the protective plate. Multiple sets of the first spring, the moving rod, and the moving groove are arranged in an array on the surfaces of the limiting plate and the protective plate. Here, the L-shaped rotating block facilitates the connection and closing of the cover and enables rotation. The rounded bottom end design prevents operators from being scratched during operation, improving safety.
[0009] Preferably, the fixing block is inserted into the slot, one end of the groove penetrates the top surface of the fixing base frame, the fixing plate is inserted into the groove, and the torsion spring is initially in a contracted state. Here, the cooperation between the fixing block and the slot, and the insertion of the fixing plate into the groove, together ensure the tightness and stability of the closed cover, preventing it from loosening.
[0010] Preferably, the torsion springs are arranged in two sets and symmetrically distributed inside the rotating groove. One end of each torsion spring is fixedly connected to the surface of the rotating rod, and the other end is fixedly connected to the inner surface of the rotating groove. Here, the two sets of symmetrically distributed torsion springs provide a more uniform and stable torque to the rotating rod, making the opening and closing of the cover smoother and maintaining good sealing after closing, thus enhancing the protection of the buttons.
[0011] Preferably, the protective plate has a placement groove at its top, a vent hole at its bottom, and a desiccant inside the placement groove. The top of the placement groove has an insertion slot, and a magnet is fixedly installed inside the insertion slot. A closing plate is placed against the top surface of the placement groove, a magnet is fixedly installed at the bottom of the closing plate, and a pull block is fixedly installed at the top of the closing plate. Here, the built-in desiccant actively absorbs moisture through the vent hole, preventing the buttons from short-circuiting due to moisture; the magnetic closing plate allows for quick, tool-free desiccant replacement; and the insertion slot's anti-misalignment design ensures a tight seal.
[0012] Preferably, the first and second magnets are opposite magnets that attract each other, the pull block is arc-shaped, and the number of vent holes is multiple and arranged in an array inside the bottom of the placement slot. Both the first and second magnets are rectangular frames. Here, the attraction between the first and second magnets ensures that the closing plate fits tightly against the placement slot, preventing desiccant leakage and facilitating opening and closing. The arc-shaped pull block is more ergonomic, making it easier for operators to grip and pull, improving operational convenience.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, by setting a fixed base frame, screw holes, and fixing block structure, multiple structures work together during equipment use to prevent dust and debris from entering. Operators do not need to frequently disassemble the protective cover when using the buttons, effectively improving the ease of operation and preventing the protective cover from being lost or damaged, thus avoiding affecting subsequent protection. Furthermore, in industrial production environments, CNC machinery may be subject to accidental collisions, vibrations, or liquid splashes. The multiple protective plate structures effectively buffer external impacts, preventing operators from accidentally pressing buttons, causing button damage or misoperation, avoiding disruption to the normal operation of the CNC machinery, and preventing production accidents.
[0015] 2. In this utility model, by setting up a placement slot, a vent hole, a desiccant, an insertion slot, a first magnet, a closing plate, a second magnet, and a pull block structure, the placement slot is used to place the desiccant during equipment use. The desiccant absorbs moisture inside the protective device, keeping the environment around the buttons dry and preventing the buttons from getting damp and damaged. The vent hole allows the desiccant to fully contact the air inside the device, exerting its moisture-absorbing effect. The structure consisting of the insertion slot, the first magnet, the closing plate, the second magnet, and the pull block facilitates the replacement and maintenance of the desiccant. By pulling the closing plate with the pull block, the attractive force of the first and second magnets is used to open and close the closing plate, making operation convenient. Attached Figure Description
[0016] Figure 1 A three-dimensional structural diagram of a protective device for CNC machine operation buttons is provided for this utility model;
[0017] Figure 2 A schematic diagram of the bottom structure of a protective device for CNC machine operation buttons is provided for this utility model;
[0018] Figure 3 An exploded structural diagram of a protective device for CNC machine operation buttons is provided for this utility model.
[0019] Figure 4 A bottom view of the protective device for CNC machine operation buttons is provided for this utility model.
[0020] Figure 5 This utility model proposes a protective device for CNC machine operation buttons. Figure 3 Enlarged view of point A in the middle;
[0021] Figure 6 This utility model proposes a protective device for CNC machine operation buttons. Figure 3 Enlarged view of section B in the middle.
[0022] Legend:
[0023] 1. Fixed base frame; 2. Screw hole; 3. Fixed block; 4. Rotating groove; 5. Rotating rod; 6. Torsion spring; 7. Rotating block; 8. Closing cover; 9. Limiting plate; 10. Moving groove; 11. Moving rod; 12. Spring one; 13. Protective plate; 14. Groove; 15. Press button; 16. Moving block; 17. Slide groove; 18. Spring two; 19. Fixed insert block; 20. Fixed plate; 21. Slot; 22. Placement slot; 23. Vent hole; 24. Desiccant; 25. Insertion slot; 26. Magnet one; 27. Closing plate; 28. Magnet two; 29. Pull block. Detailed Implementation
[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0026] Example 1
[0027] Please see Figures 1-6This utility model provides a technical solution: a protective device for CNC machine operation buttons, including a fixed base frame 1, a screw hole 2 through the surface of the fixed base frame 1, a fixed block 3 fixedly installed on the surface of the fixed base frame 1, a rotating groove 4 through the surface of the fixed block 3, a rotating rod 5 sleeved inside the rotating groove 4, a torsion spring 6 sleeved on the outer surface of the rotating rod 5, rotating blocks 7 fixedly installed at both ends of the rotating rod 5, a closing cover 8 fixedly installed on the surface of the rotating block 7, a limiting plate 9 fixedly installed inside the closing cover 8, a moving groove 10 through the surface of the limiting plate 9, a moving rod 11 sleeved inside the moving groove 10, a spring 12 sleeved on the outer surface of the moving rod 11, a protective plate 13 fixedly installed at the top end of the moving rod 11, a groove 14 at the front end of the fixed base frame 1, a push button 15 sleeved inside the groove 14, a moving block 16 fixedly installed on the surface of the push button 15, a sliding groove 17 through the surface of the moving block 16, a spring 18 sleeved inside the groove 14, and a protective plate 13 at the rear end of the push button 15. A fixed insert block 19 is fixedly installed, and a fixed plate 20 is fixedly installed at the bottom of the closed cover 8. A slot 21 is opened through the surface of the fixed plate 20. When the equipment is in use, the hand first contacts the surface of the button 15, then the button 15 is pressed. The movement of the button 15 then moves the moving block 16, which in turn moves the spring 18. The button 15 then moves the fixed insert block 19, which then disengages from the surface of the slot 21. The torsion spring 6 then rotates the closed cover 8. With the closed cover 8 rotating, the operator can operate the equipment. If the operator accidentally touches the protective plate 13, the protective plate 13 can be moved by external force. The movement of the protective plate 13 then moves the moving rod 11, which in turn moves the spring 12. This prevents damage to the equipment caused by external force and effectively protects the buttons from damage.
[0028] Please see Figures 1-6The surface of the button 15 is fixedly equipped with anti-slip particles. Multiple sets of these particles are arranged in an array on the surface of the button 15. The fixed insert 19 is shaped like an inverted "L". Two sets of movable blocks 16 are symmetrically distributed on the surface of the button 15. Two sets of springs 18 are symmetrically distributed inside the groove 14. One end of each spring 18 is fixedly connected to the inner surface of the groove 14, and the other end is fixedly connected to the surface of the movable block 16. The rotating block 7 is shaped like an "L" and has rounded corners at its bottom. One end of spring 12 is fixedly connected to the surface of the limiting plate 9, and the other end is fixedly connected to the bottom surface of the protective plate 13. Multiple sets of springs 12, movable rods 11, and movable grooves 10 are arranged in an array on the surfaces of the limiting plate 9 and the protective plate 13. The fixing block 19 is inserted into the slot 21. One end of the groove 14 penetrates the top surface of the fixing base frame 1. The fixing plate 20 is inserted into the groove 14. The torsion spring 6 is initially in a contracted state. There are two sets of torsion springs 6, which are symmetrically distributed inside the rotating groove 4. One end of the torsion spring 6 is connected and fixed to the surface of the rotating rod 5, and the other end of the torsion spring 6 is connected and fixed to the inner surface of the rotating groove 4. Magnet 1 26 and Magnet 2 28 are opposite magnets that attract each other. The pull block 29 is an arc-shaped block. There are multiple sets of vent holes 23, which are arrayed inside the bottom end of the placement groove 22. Magnet 1 26 and Magnet 2 28 are both rectangular frames. The rectangular frames of opposite magnets fit together to ensure full-circumference adsorption and sealing, preventing moisture from seeping in. The array of vent holes 23 optimizes airflow circulation and improves drying efficiency. The arc-shaped pull block 29 increases the force application contact surface and reduces the difficulty of opening.
[0029] Example 2
[0030] Please see Figures 1-4 , Figure 6 The protective plate 13 has a placement groove 22 at its top and a vent hole 23 at its bottom. A desiccant 24 is placed inside the placement groove 22. An insertion groove 25 is provided at the top of the placement groove 22. A magnet 26 is fixedly installed inside the insertion groove 25. A closing plate 27 is placed against the top surface of the placement groove 22. A magnet 28 is fixedly installed at the bottom of the closing plate 27. A pull block 29 is fixedly installed at the top of the closing plate 27. When the desiccant 24 needs to be replaced, first, the hand contacts the surface of the pull block 29. Then, the hand applies force to pull the pull block 29. Then, the movement of the pull block 29 moves the closing plate 27. Then, the movement of the closing plate 27 separates the magnet 26 from the magnet 28. The desiccant 24 can then be replaced.
[0031] Working principle: When using the equipment, firstly, the hand contacts the surface of the button 15, then the button 15 is pressed. The movement of the button 15 then moves the moving block 16, which in turn causes the spring 18 to retract. Next, the movement of the button 15 moves the fixed insert 19, which then disengages from the surface of the slot 21. The return motion of the torsion spring 6 then rotates the closing cover 8. With the rotation of the closing cover 8, the operator can then operate the equipment. Simultaneously, in case the operator accidentally comes into contact with the protective plate 13... In case of accidental contact, the protective plate 13 is moved by external force. Then, the movement of the protective plate 13 drives the moving rod 11 to move. The movement of the moving rod 11 then causes the spring 12 to retract. This can prevent damage to the equipment caused by external force and effectively protect the buttons from damage. When it is necessary to replace the desiccant 24, first, the hand contacts the surface of the pull block 29. Then, the hand applies force to pull the pull block 29. Then, the movement of the pull block 29 drives the closing plate 27 to move. Then, the movement of the closing plate 27 separates the magnet 26 from the magnet 28. After that, the desiccant 24 can be replaced.
[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A protective device for CNC machine operation buttons, comprising a fixed base frame (1), characterized in that: The fixed base frame (1) has a through screw hole (2) on its surface. A fixing block (3) is fixedly installed on the surface of the fixed base frame (1). A rotating groove (4) is through the surface of the fixing block (3). A rotating rod (5) is fitted inside the rotating groove (4). A torsion spring (6) is fitted on the outer surface of the rotating rod (5). Rotating blocks (7) are fixedly installed at both ends of the rotating rod (5). A closing cover (8) is fixedly installed on the surface of the rotating block (7). A limiting plate (9) is fixedly installed inside the closing cover (8). A moving groove (10) is through the surface of the limiting plate (9). A moving rod (11) is fitted inside the moving groove (10). Spring 1 (12) is fitted on the outer surface of the moving rod (11). A protective plate (13) is fixedly installed on the top of the moving rod (11). A groove (14) is opened at the front end of the fixed bottom frame (1). A push button (15) is fitted inside the groove (14). A moving block (16) is fixedly installed on the surface of the push button (15). A sliding groove (17) is opened through the surface of the moving block (16). Spring 2 (18) is fitted inside the groove (14). A fixed insert (19) is fixedly installed at the rear end of the push button (15). A fixed plate (20) is fixedly installed at the bottom end of the closed cover (8). A slot (21) is opened through the surface of the fixed plate (20).
2. The protection device for CNC machine operation buttons according to claim 1, characterized in that: Anti-slip particles are fixedly installed on the surface of the button (15). The number of anti-slip particles is multiple and they are arranged in an array on the surface of the button (15). The fixed plug (19) is shaped like an inverted "L".
3. The protection device for CNC machine operation buttons according to claim 1, characterized in that: The number of the moving blocks (16) is two sets and they are symmetrically distributed on the surface of the button (15). The number of the springs (18) is two sets and they are symmetrically distributed inside the groove (14). One end of the springs (18) is connected and fixed to the inner surface of the groove (14), and the other end of the springs (18) is connected and fixed to the surface of the moving blocks (16).
4. The protection device for CNC machine operation buttons according to claim 1, characterized in that: The rotating block (7) is L-shaped, and the bottom end of the rotating block (7) is rounded. One end of the spring (12) is connected and fixed to the surface of the limiting plate (9), and the other end of the spring (12) is connected and fixed to the bottom surface of the protective plate (13). The spring (12), the moving rod (11), and the moving groove (10) are in multiple sets and are arranged in an array on the surface of the limiting plate (9) and the protective plate (13).
5. The protection device for CNC machine operation buttons according to claim 1, characterized in that: The fixing block (19) is inserted into the slot (21), one end of the groove (14) penetrates the top surface of the fixing base frame (1), the fixing plate (20) is inserted into the groove (14), and the torsion spring (6) is initially in a contracted state.
6. The protection device for CNC machine operation buttons according to claim 1, characterized in that: The torsion springs (6) are in two sets and are symmetrically distributed inside the rotating groove (4). One end of the torsion spring (6) is connected and fixed to the surface of the rotating rod (5), and the other end of the torsion spring (6) is connected and fixed to the inner surface of the rotating groove (4).
7. The protection device for CNC machine operation buttons according to claim 1, characterized in that: The top of the protective plate (13) is provided with a placement groove (22), and the bottom of the placement groove (22) is provided with a vent hole (23). A desiccant (24) is placed inside the placement groove (22). The top of the placement groove (22) is provided with an insertion groove (25). A magnet (26) is fixedly installed inside the insertion groove (25). A closing plate (27) is attached to the top surface of the placement groove (22). A magnet (28) is fixedly installed at the bottom of the closing plate (27). A pull block (29) is fixedly installed at the top of the closing plate (27).
8. The protection device for CNC machine operation buttons according to claim 7, characterized in that: The magnet one (26) and the magnet two (28) are opposite magnets that attract each other. The pull block (29) is an arc-shaped block. The number of the vent holes (23) is multiple and they are arranged in an array inside the bottom of the placement groove (22). The magnet one (26) and the magnet two (28) are both rectangular frames.