Protective device for numerical control lathe machining
By designing an L-shaped protective door combined with a sensor on a CNC lathe, the safety hazards and environmental pollution caused by the protective door not being closed were solved, achieving safe production and stable equipment operation, and reducing enterprise costs.
Patent Information
- Application Number
- CN202423005481.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-06
AI Technical Summary
During the machining process of CNC lathes, if the safety door is not closed, it will cause safety hazards to operators, environmental pollution, and unstable equipment operation, and increase the cost of enterprises.
A protective device for CNC lathe machining was designed, including an L-shaped protective door, a pressure sensor, a magnetic plate, and a door-closing electromagnetic plate. The sensor detects the status of the protective door to ensure that the equipment cannot work when it is not closed. The magnetic plate increases its attraction after closing to prevent unauthorized opening. Combined with an audible and visual alarm, the device alerts the operator.
It effectively prevents dangerous operations when the protective door is not closed, improves operational safety and the cleanliness of the production area, and reduces safety accidents and equipment maintenance costs.
Smart Images
Figure CN223656616U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC machining technology, and in particular to a protective device for CNC lathe machining. Background Technology
[0002] In the field of modern machining, CNC lathes have been widely used due to their high precision and efficiency. However, the accompanying safety issues remain a crucial factor that cannot be ignored. According to the current "Safety Operating Procedures for Machining" and numerous related safety regulations, it is mandatory to take effective protective measures to isolate hazardous areas from operators when CNC lathes are operating. Among these, the proper use and closure of safety doors is particularly important.
[0003] However, in actual industrial production scenarios, phenomena that contradict safety regulations often occur. Many workers, in order to... Figure 1 For convenience, some operators attempt to omit the step of closing the protective door during processing, hoping to improve work efficiency by quickly loading and unloading materials. This violation has many serious consequences. On the one hand, operators are exposed to an extremely dangerous environment. Unprotected chips can cut their bodies, and splashing coolant can burn their skin or damage their vision. Collisions with high-speed cutting tools or moving parts can lead to irreversible serious injury or even death. On the other hand, open protective doors allow chips and coolant to spread uncontrollably into the surrounding environment, polluting the work area, affecting the normal operation of surrounding equipment, potentially causing secondary disasters such as electrical short circuits, reducing the safety and cleanliness of the entire production area, and increasing the company's costs in equipment maintenance, environmental cleanup, and accident handling. Utility Model Content
[0004] This utility model aims to at least partially solve one of the technical problems in the related art.
[0005] Therefore, the purpose of this utility model is to propose a protective device for CNC lathe machining, which can solve the problem of safety and environmental impact caused by the protective door not being closed when the CNC lathe is working.
[0006] To achieve the above objectives, this utility model proposes a protective device for CNC lathe machining, including a CNC lathe and a docking groove. An L-shaped protective door is slidably connected to the inner wall of the docking groove. Two pressure sensors are installed inside the L-shaped protective door. Two magnetic plates are installed on both sides of the L-shaped protective door. Two opening magnetic plates and two closing electromagnetic plates are installed on the inner wall of the docking groove. The opening magnetic plates and the closing electromagnetic plates are magnetically attracted to the corresponding magnetic plates. Two clearance grooves are formed inside the L-shaped protective door. The pressure sensors are installed on the inner walls of the corresponding clearance grooves. Push rods that trigger the pressure sensors are slidably connected to the inner walls of the two clearance grooves. Both push rods are in contact with the inner walls of the docking groove. A return spring is installed at one end of each push rod and is sleeved on the outside of the corresponding pressure sensor. An audible and visual alarm is installed between the two pressure sensors and is installed on the top of the CNC lathe. The audible and visual alarm is electrically connected to the two pressure sensors.
[0007] This utility model discloses a protective device for CNC lathe machining. It uses a pressure sensor to detect the opening and closing of an L-shaped protective door. When the L-shaped protective door is open, the equipment inside the CNC lathe cannot operate. Furthermore, by energizing the closing electromagnetic plate, the attraction to the magnetic plate is strengthened, making it difficult for personnel to open the L-shaped protective door. The door can only be opened after the equipment inside the CNC lathe is stopped. This solves the problems of unregulated operation with the door open, which poses safety hazards to operators, pollutes the work area, affects the normal operation of surrounding equipment, may cause secondary disasters such as electrical short circuits, reduces the safety and cleanliness of the entire production area, and increases the company's costs in equipment maintenance, environmental cleanup, and handling of safety accidents.
[0008] In addition, the protective device for CNC lathe machining proposed above according to this utility model may also have the following additional technical features:
[0009] Specifically, a spiral connecting line is installed on the back of the CNC lathe, and one end of the spiral connecting line is installed at the end of the L-shaped protective door.
[0010] Specifically, the bottom end of the L-shaped protective door is equipped with several spherical rolling elements, and all of the spherical rolling elements are slidably connected to the inner wall of the docking groove.
[0011] Specifically, two indicator lights are installed at the top of the L-shaped protective door, and the indicator lights are electrically connected to the corresponding touch pressure sensors.
[0012] Specifically, the inner wall of the L-shaped protective door is slidably connected to two guide rods, both of which are installed on the inner wall of the docking groove.
[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ;
[0016] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ;
[0017] Figure 3 This is a three-dimensional enlarged cross-sectional structural diagram of the L-shaped protective door in this utility model;
[0018] Figure 4 This utility model Figure 3 A magnified structural diagram of part A in the middle.
[0019] As shown in the figure:
[0020] 1. CNC lathe; 11. Outer groove for docking; 12. Door opening magnetic plate; 13. Door closing electromagnetic plate; 14. Spiral connecting line; 2. L-shaped protective door; 21. Magnetic suction plate; 22. Inner groove for clearance; 23. Spherical rolling element; 24. Indicator light; 25. Guide slide rod; 3. Touch pressure sensor; 32. Push rod; 321. Return spring; 33. Audible and visual alarm. Detailed Implementation
[0021] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Rather, the embodiments of this utility model include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.
[0022] The protective device for CNC lathe machining according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
[0023] like Figures 1-4 As shown, the protective device for CNC lathe machining in this embodiment of the present invention may include a CNC lathe 1 and a docking groove 11. An L-shaped protective door 2 is slidably connected to the inner wall of the docking groove 11, and two pressure sensors 3 are provided inside the L-shaped protective door 2.
[0024] The L-shaped protective door 2 has two magnetic plates 21 installed on both sides, and two opening magnetic plates 12 and two closing electromagnetic plates 13 are installed on the inner wall of the mating outer groove 11. The opening magnetic plates 12 and the closing electromagnetic plates 13 are magnetically attracted to the corresponding magnetic plates 21.
[0025] It should be noted that the four magnetic plates 21 described in this embodiment are distributed at the top and sides, respectively, and the two door-opening magnetic plates 12 and the two door-closing electromagnetic plates 13 correspond to the two sides of the L-shaped protective door 2.
[0026] The L-shaped protective door 2 has two recessed grooves 22. The pressure sensor 3 is installed on the inner wall of the corresponding recessed groove 22. The inner walls of the two recessed grooves 22 are slidably connected to push rods 32 that trigger the pressure sensor 3. Both push rods 32 are in contact with the inner wall of the mating groove 11. A reset spring 321 is installed at one end of the push rod 32. The reset spring 321 is sleeved on the outside of the corresponding pressure sensor 3.
[0027] It should be noted that the reset spring 321 described in this embodiment does not contact the pressure sensor 3.
[0028] An audible and visual alarm 33 is provided between the two pressure sensors 3. The audible and visual alarm 33 is installed on the top of the CNC lathe 1 and is electrically connected to the two pressure sensors 3.
[0029] It should be noted that the audible and visual alarm 33 described in this embodiment does not come into contact with the L-shaped protective door 2.
[0030] Specifically, to address the issue of unauthorized or accidental opening of the L-shaped protective door 2, the CNC lathe 1 engages with the L-shaped protective door 2 via a docking groove 11. The inner walls on both sides of the docking groove 11 limit the L-shaped protective door 2, preventing it from sliding excessively. The L-shaped protective door 2 effectively shields the opening of the CNC lathe 1's workspace, preventing the mechanical movements and debris generated during machining from affecting external personnel and the environment. The L-shaped protective door 2 accommodates the pressure sensor 3 and the push rod 32 via a recessed groove 22. The push rod 32... When the push rod 32 slides inside the L-shaped protective door 2 and retracts, it presses against the corresponding pressure sensor 3. This pressure sensor 3 transmits a signal indicating whether the L-shaped protective door 2 is fully closed or fully open to the PLC control system of the CNC lathe 1. Based on the pressure applied to the two pressure sensors 3, the CNC lathe 1 controls the internal processing equipment to start or stop. Therefore, when the L-shaped protective door 2 is released from its closed state, the equipment inside the CNC lathe 1 cannot operate; when the L-shaped protective door 2 is fully closed, the equipment inside the CNC lathe 1 can resume production. When the L-shaped protective door 2 is fully open or fully closed, it can be connected to the opening magnetic plate 12 and the closing electromagnetic plate 13 via the magnetic suction plate 21. After the L-shaped protective door 2 is closed, the corresponding pressure sensor 3 is pressed by the push rod 32, and the return spring 321 can push the push rod 32 to extend and reset. The closing electromagnetic plate 13 can be energized, which strengthens the attraction of the closing electromagnetic plate 21, making it difficult for personnel to open the L-shaped protective door 2. It can only be opened by controlling the equipment inside the CNC lathe 1 to stop. The L-shaped protective door 2 is opened to improve the ability and effectiveness of standardized operations, thereby solving the problem of non-standard operations such as opening the door for processing, which pose safety hazards to operators, pollute the work site, affect the normal operation of surrounding equipment, and may cause secondary disasters such as electrical short circuits. It also reduces the safety and cleanliness of the entire production area and increases the company's cost investment in equipment maintenance, environmental cleanup, and safety accident handling. When the L-shaped protective door 2 is opened unexpectedly and the equipment inside the CNC lathe 1 has not stopped, the sound and light alarm 33 will be activated to remind the staff to come and check.
[0031] In one embodiment of this utility model, such as Figures 1-4 As shown, a spiral connecting line 14 is installed on the back of the CNC lathe 1, and one end of the spiral connecting line 14 is installed at the end of the L-shaped protective door 2.
[0032] It should be noted that one end of the spiral connecting line 14 described in this embodiment is pulled by the movement of the L-shaped protective door 2.
[0033] Specifically, the L-shaped protective door 2 will continuously change position during operation, and the spiral connecting line 14 can extend and retract with the movement of the L-shaped protective door 2 to ensure stable transmission of signals and power. The elastic structure of the spiral connecting line 14 can also reduce line fatigue damage caused by frequent movement.
[0034] In one embodiment of this utility model, such as Figures 1-4 As shown, several spherical rolling elements 23 are installed at the bottom of the L-shaped protective door 2, and the several spherical rolling elements 23 are slidably connected to the inner wall of the docking groove 11.
[0035] It should be noted that the spherical rolling body 23 described in this embodiment is located between the L-shaped protective door 2 and the docking outer groove 11, and the top surface of the docking outer groove 11 does not directly contact the L-shaped protective door 2.
[0036] Specifically, when the L-shaped protective door 2 slides laterally on the docking groove 11, the L-shaped protective door 2 can drive several spherical rolling bodies 23 to slide synchronously. The spherical rolling bodies 23 reduce the sliding friction between the L-shaped protective door 2 and the docking groove 11, so that the L-shaped protective door 2 can maintain a more stable and effortless sliding operation when opening or closing.
[0037] In one embodiment of this utility model, such as Figures 1-4 As shown, two indicator lights 24 are installed at the top of the L-shaped protective door 2, and the indicator lights 24 are electrically connected to the corresponding touch pressure sensors 3.
[0038] It should be noted that the two indicator lights 24 described in this embodiment indicate different colors.
[0039] Specifically, after the L-shaped protective door 2 is fully opened or closed, the push rod 32 is pushed in the opposite direction by the mating groove 11, triggering the touch sensor 3, so that the corresponding indicator light 24 can display the corresponding color, making it easier to observe the overall operation of the equipment in the factory.
[0040] In one embodiment of this utility model, such as Figures 1-4 As shown, the inner wall of the L-shaped protective door 2 is slidably connected with two guide rods 25, both of which are installed on the inner wall of the mating groove 11.
[0041] It should be noted that the guide slide 25 described in this embodiment is misaligned with the door closing electromagnetic plate 13 and the magnetic suction plate 21 to prevent mutual interference.
[0042] Specifically, the CNC lathe 1 supports and fixes the two guide slide rods 25. When the L-shaped protective door 2 slides, it moves along the guide slide rods 25, so that the guide slide rods 25 can guide and limit the L-shaped protective door 2 to prevent the L-shaped protective door 2 from deviating or tilting, and prevent the L-shaped protective door 2 from detaching from the CNC lathe 1, thus ensuring the stability of the L-shaped protective door 2 in use.
[0043] In summary, the protective device for CNC lathe machining of this utility model embodiment, when machining operations are performed, the machining equipment inside the CNC lathe 1 is in a closed state. When the L-shaped protective door 2 is opened, the magnetic suction plate 21 is attracted to the opening magnetic plate 12. When machining operations are performed, by pulling the L-shaped protective door 2, the magnetic suction plate 21 can disengage from the opening magnetic plate 12. Subsequently, the two magnetic suction plates 21 on the other side of the L-shaped protective door 2 can contact the closing electromagnetic plate 13. At the same time, the push rod 32 is subjected to reverse compression by the docking groove 11, which triggers the touch sensor 3. The closing electromagnetic plate 13 is energized to strengthen the attraction of the magnetic suction plate 21. At this time, the machine can be started, making it difficult for personnel to open the L-shaped protective door 2. The L-shaped protective door 2 can only be opened after the equipment inside the CNC lathe 1 is stopped, thus improving the ability and effect of standardized operation.
[0044] In the description of this specification, the terms "first" and "second" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.
[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A protective device for machining on a numerically controlled lathe, comprising a numerically controlled lathe (1) and a counter-bore (11), characterized in that, The inner wall of the butt joint outer groove (11) is slidably connected with an L-shaped protective door (2), two touch pressure sensors (3) are arranged in the L-shaped protective door (2), wherein, Two magnetic attraction plates (21) are mounted on the two sides of the L-shaped protective door (2), two door opening magnetic plates (12) and two door closing electromagnetic plates (13) are mounted on the inner wall of the butt joint outer groove (11), the door opening magnetic plate (12) and the door closing electromagnetic plate (13) are magnetically adsorbed with the corresponding magnetic attraction plate (21); Two accommodating inner grooves (22) are arranged in the L-shaped protective door (2), the touch pressure sensor (3) is mounted on the inner wall of the corresponding accommodating inner groove (22), the inner wall of the two accommodating inner grooves (22) is slidably connected with a push rod (32) for triggering the touch pressure sensor (3), the two push rods (32) are in contact with the inner wall of the butt joint outer groove (11), one end of the push rod (32) is mounted with a reset spring (321), and the reset spring (321) is sleeved on the outer side of the corresponding touch pressure sensor (3); A sound and light alarm (33) is arranged between the two touch pressure sensors (3), the sound and light alarm (33) is mounted on the top end of the numerical control lathe (1), and the sound and light alarm (33) is electrically connected with the two touch pressure sensors (3).
2. The protection device for CNC lathe machining according to claim 1, characterized in that, The back of the numerical control lathe (1) is mounted with a spiral connecting line (14), one end of the spiral connecting line (14) is mounted on the end of the L-shaped protective door (2).
3. The protection device for CNC lathe machining according to claim 1, characterized in that, The bottom end of the L-shaped protective door (2) is mounted with a plurality of spherical rolling bodies (23), and the plurality of spherical rolling bodies (23) are slidably connected to the inner wall of the butt joint outer groove (11).
4. The protection device for CNC lathe machining according to claim 1, characterized in that, Two prompt lights (24) are mounted on the top end of the L-shaped protective door (2), and the prompt light (24) is electrically connected with the corresponding touch pressure sensor (3).
5. The protection device for CNC lathe machining according to claim 1, characterized in that, The inner wall of the L-shaped protective door (2) is slidably connected with two guide sliding rods (25), and the two guide sliding rods (25) are mounted on the inner wall of the butt joint outer groove (11).