A numerical control lathe protective cover capable of preventing iron filings from splashing
By designing a protective cover for the inclined screen plate and spiral discharge assembly on a CNC lathe, the problem of iron filings scattering was solved, achieving efficient collection and automatic discharge, improving operational safety and equipment reliability, and improving the working environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RIZHAO SHIZHENG FORGING
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-23
AI Technical Summary
Existing CNC lathe protective covers are insufficient in collecting metal chips, failing to effectively guide and concentrate splashed metal chips, causing chips to scatter and accumulate inside the machine tool or on the ground, increasing cleaning difficulty, affecting the normal operation of the machine tool and the safety of operators.
A protective cover for CNC lathes to prevent iron filings from splashing is designed. An inclined screen plate guides the iron filings to slide into the material box, and the screw discharge component automatically discharges them. The top plate is connected to the machine tool through a hinge for easy maintenance. The outer shell and side guards are designed with a three-layer protective structure, including a stainless steel guide plate, a honeycomb sound insulation plate and an alloy anti-collision plate, to enhance the protective effect.
It effectively reduces the disorderly scattering and accumulation of iron filings inside the machine tool and in the working area, reduces the safety risks to operators, improves cleaning efficiency, keeps the working environment clean, reduces the risk of equipment failure, and protects the precision and lifespan of the machine tool.
Smart Images
Figure CN224390633U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of CNC lathe protection technology, and in particular relates to a CNC lathe protective cover to prevent iron filings from flying. Background Technology
[0002] During CNC lathe machining, metal cutting generates a large amount of high-speed flying iron filings. These filings not only pose safety hazards to operators (such as cuts and burns), but also pollute the working environment and even affect the accuracy and lifespan of the machine tool. Currently, most CNC lathes use protective covers that only have basic isolation functions, that is, they use metal or plastic covers to separate the machining area from the external environment to prevent chips from splashing out.
[0003] However, traditional protective covers are insufficient in collecting iron filings. Existing protective covers are mainly simple baffle structures, which cannot effectively guide and concentrate the splashed iron filings, causing the chips to scatter and accumulate inside the machine tool or on the ground, increasing the difficulty of cleaning, and in severe cases, interfering with the normal operation of the machine tool. Utility Model Content
[0004] The purpose of this invention is to provide a protective cover for CNC lathes that prevents iron filings from flying, in order to solve the problems existing in the prior art.
[0005] To achieve the above objectives, the present invention adopts a CNC lathe protective cover to prevent iron filings from flying, comprising an outer shell plate, with triangular side guards symmetrically arranged on the front side of the outer shell plate, and inclined screen plates arranged on the side guards. One end of a top plate is connected to the top of the outer shell plate, and a hinge is provided at the end of the top plate away from the outer shell plate. The top plate is hinged to the CNC lathe through the hinge. A bottom plate is provided below the side guards, and a bottom compartment is provided on the front side of the bottom plate. The bottom compartment can directly hold materials that are difficult to screen and fall off the screen plate. A spiral discharge assembly is provided in the bottom compartment, and a discharge port for discharging materials is provided below the bottom compartment. A material holding box is provided below the screen plate, and the material holding box can hold materials that fall off the screen. A mounting plate is provided on the front side of the material holding box by screws. The mounting plate is used to seal the material holding box to prevent materials from falling off.
[0006] Preferably, a motor housing is provided on the side of the outer shell away from the sieve plate, and a scraper motor is provided inside the motor housing. A cross-shaped scraper is provided through the output end of the scraper motor through the outer shell, and the cross-shaped scraper can scrape off the iron filings adhering to the outer shell.
[0007] Preferably, the spiral discharge assembly includes a servo motor, a geared motor, and an auger. The servo motor is located on one side of the bottom hopper, the geared motor is connected to the servo motor, and the auger is located inside the bottom hopper. The geared motor is connected to the auger via a rotating shaft. The discharge assembly enables the bottom hopper to collect and automatically discharge materials.
[0008] Preferably, the top plate, outer shell plate and side guard plate are provided with sealing strips.
[0009] Preferably, a baffle is provided on the side of the outer shell plate near the side guard plate to further prevent iron filings from splashing outward.
[0010] Preferably, the outer shell, top plate, side guard plate and bottom plate all have a three-layer protective layer structure, which consists of a stainless steel guide plate, a honeycomb sound insulation plate and an alloy anti-collision plate from the inside to the outside.
[0011] Preferably, a handle is provided on the top of the motor housing.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] This invention utilizes an inclined sieve plate, which not only blocks the splashing of iron filings from the outer casing, but more importantly, actively guides the flying iron filings downwards using its inclined surface. This guiding design avoids large-scale iron filings from splashing everywhere, effectively concentrating and guiding the iron filings splashed on the sieve plate into the collection box, greatly reducing the disorderly scattering and accumulation of chips inside the machine tool or on the working area floor. The sieve plate itself has a certain screening function; smaller chips or grinding dust fall directly into the collection box below through the sieve holes, and fine iron filings are screened and fall into the collection box for initial collection. Large or curled chips that fail to pass through the sieve holes slide down to the bottom of the sieve plate under the action of gravity and guided by the inclined surface, and finally fall into the bottom compartment located below the side guard plate and in front of the bottom plate. The spiral discharge assembly installed in the bottom bin can automatically and continuously transport the chips accumulated in the bottom bin to the discharge port, which greatly reduces the frequency and intensity of manual cleaning during downtime. It can directly discharge the chips, significantly improve cleaning efficiency and keep the work area clean. By effectively guiding and collecting the splashed iron chips, it greatly reduces the safety risks of iron chips causing scratches, burns and other injuries to operators. It also significantly reduces the spread of chips in the work area, improves the working environment, reduces dust pollution, and further avoids the accumulation of chips on the moving parts of the machine tool, reducing the risk of equipment failure caused by chip interference. The top plate is designed with hinges, which can be easily opened or flipped when it is necessary to inspect the inside of the machine tool or replace the tool, providing a good operation and maintenance passage.
[0014] In summary, this protective cover design not only significantly improves operational safety and the cleanliness of the working environment, but more importantly, it effectively reduces the core problem of chip accumulation interfering with machine tool operation, lowers maintenance difficulty and frequency, protects machine tool accuracy and lifespan, thereby improving overall processing efficiency and equipment reliability. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 A side perspective view of a CNC lathe protective cover to prevent metal shavings from flying;
[0017] Figure 2 A side view of a protective cover for CNC lathes to prevent metal shavings from flying;
[0018] Figure 3 A front perspective perspective view of a protective cover for CNC lathes to prevent metal shavings from flying;
[0019] Figure 4 A top-view perspective view of a protective cover for CNC lathes to prevent metal shavings from flying;
[0020] Figure 5 A bottom-view perspective view of a protective cover for CNC lathes to prevent metal shavings from flying;
[0021] Figure 6 This is a schematic diagram of the installation structure of the material container.
[0022] Figure 7 This is a schematic diagram of the internal structure of the motor housing;
[0023] Figure 8 This is a cross-sectional view of the outer shell panel.
[0024] In the above figures, 1. Outer shell plate, 2. Screen plate, 3. Bottom hopper, 4. Screw conveyor, 5. Top plate, 6. Sealing strip, 7. Hinge, 8. Baffle, 9. Motor box, 10. Handle, 11. Servo motor, 12. Gear motor, 13. Cross-shaped scraper, 14. Scraper motor, 15. Discharge port, 16. Bottom plate, 17. Mounting plate, 18. Side guard plate, 19. Material collection box, 20. Stainless steel guide plate, 21. Honeycomb sound insulation board, 22. Alloy anti-collision plate. Detailed Implementation
[0025] 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.
[0026] 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.
[0027] Example 1, such as Figure 1-8 As shown, a protective cover for CNC lathes to prevent metal shavings from flying includes an outer shell plate 1. The front side of the outer shell plate 1 has symmetrically arranged triangular side guard plates 18, on which inclined screen plates 2 are arranged. One end of a top plate 5 is connected to the upper part of the outer shell plate 1. A hinge 7 is provided at the end of the top plate 5 away from the outer shell plate 1, and the top plate 5 is hinged to the CNC lathe via the hinge 7. A bottom plate 16 is provided below the side guard plates 18, and a bottom compartment 3 is provided on the front side of the bottom plate 16. The bottom compartment 3 can directly hold metal shavings that are difficult to screen and fall off the screen plates 2. The material is contained in a spiral discharge assembly in the bottom hopper 3. A discharge port 15 is located below the bottom hopper 3, which can be blocked by a rubber plug. When discharge is needed, the rubber plug can be removed. A material holding box 19 is located below the screen plate 2, which can hold the material that falls off the screen. A mounting plate 17 is installed on the front side of the material holding box 19 by screws. The mounting plate 17 is used to block the material holding box 19 to prevent the material from falling. The material holding box 19 can be removed and put in by removing the screws on the mounting plate 17.
[0028] The inclined screen plate 2 of the protective cover first blocks the flying iron filings from shooting outwards, and uses its inclined surface to guide all the iron filings that hit it to slide down. Fine iron filings and dust pass directly through the screen holes and fall into the collection box 19 below for initial collection. Large pieces or curled chips that fail to pass through the screen slide down the inclined surface of the screen plate 2 to its bottom end, and finally enter the bottom chamber 3 located below the side guard plate 18 and in front of the bottom plate 16. Larger chips accumulated in the bottom chamber 3 are automatically and continuously conveyed to the discharge port 15 by the built-in spiral discharge component. The top plate 5 is designed to be connected to the machine tool through the hinge 7, allowing it to be easily opened or flipped, providing an operating channel for internal maintenance and tool replacement. This design effectively curbs the flying of iron filings and greatly reduces the risk of operators being cut. The protective cover reduces the risk of burns, minimizes the spread of chips in the work area, improves the working environment, optimizes environmental protection and equipment maintenance, significantly reduces dust pollution in the work area, prevents chips from accumulating on machine tool moving parts, avoids equipment jamming, decreased accuracy or damage caused by chips, and protects machine tool accuracy and lifespan. The automatic continuous chip removal of the material box 19 and the bottom chamber 3 in conjunction with the spiral discharge assembly greatly reduces the frequency and intensity of manual cleaning during downtime, improves cleaning efficiency, and keeps the work area clean. The hinged design of the top plate 5 makes maintenance and repair operations more convenient and faster. In summary, this protective cover effectively reduces the core problem of chip accumulation interference by efficiently collecting chips, reduces maintenance difficulty and frequency, and improves processing efficiency and equipment reliability.
[0029] A motor housing 9 is located on the side of the outer shell 1 away from the screen plate 2. A scraper motor 14 is installed inside the motor housing 9. A cross-shaped scraper 13 is installed through the output end of the scraper motor 14 through the outer shell 1. The cross-shaped scraper 13 can scrape off iron filings adhering to the outer shell 1. The scraper motor 14 inside the motor housing 9 drives the cross-shaped scraper 13 through the outer shell 1 to rotate. When oily or sticky iron filings that are difficult to remove by gravity or vibration adhere to the inner wall of the outer shell 1, the rotating cross-shaped scraper 13 continuously scrapes the inner surface of the outer shell 1 with its edge. The scraped iron filings are peeled off by centrifugal force and scraper movement, and slide down with the help of the screen plate 2 inside the protective cover or by gravity, and finally flow into the material collection box 19, further maintaining the cleanliness of the machine tool's internal environment and working area.
[0030] The spiral discharge assembly includes a servo motor 11, a geared motor 12, and an auger 4. The servo motor 11 is located on one side of the bottom hopper 3, and the geared motor 12 is connected to the servo motor 11. The auger 4 is located inside the bottom hopper 3, and the geared motor 12 is connected to the auger 4 via a rotating shaft. The discharge assembly enables the bottom hopper 3 to collect and automatically discharge materials. The servo motor 11 located on one side of the bottom hopper 3 provides power. This power is reduced in speed and increased in torque by the geared motor 12, and then transmitted to the auger 4 installed inside the bottom hopper 3 via the rotating shaft. When the auger 4 rotates under the drive of the geared motor 12, its spiral blades continuously push large or curled iron filings accumulated at the bottom of the bottom hopper 3 toward the discharge port 15. The pushed chips are forcibly and continuously transported to the discharge port 15 along the spiral channel of the auger 4 blades, and finally discharged outside the protective cover. This design enables automatic and continuous chip removal, greatly improving chip removal efficiency, reducing downtime, and keeping the work area clean. In conjunction with the sieve plate 2 and the material box 19, it achieves graded collection and forms a complete closed-loop system of screening, collection, and automatic discharge, ensuring the long-term stable operation of the protective cover and the machine tool.
[0031] Sealing strips 6 are provided on the top plate 5, the outer shell plate 1 and the side guard plate 18. A baffle 8 is provided on the side of the outer shell plate 1 adjacent to the side guard plate 18 to further prevent iron filings from splashing outward. The outer shell plate 1, the top plate 5, the side guard plate 18 and the bottom plate 16 all have a three-layer protective structure. The three-layer protective structure consists of a stainless steel guide plate 20, a honeycomb sound insulation plate 21 and an alloy anti-collision plate 22 from the inside to the outside. A handle 10 is provided on the top of the motor box 9. The sealing strip 6 prevents iron filings from slipping out through the gap between the protective cover and the machine tool, further preventing iron filings from splashing outwards. The baffle 8 effectively prevents iron filings from splashing to both sides, facilitating their collection. The outer shell plate 1, top plate 5, side guard plates 18, and bottom plate 16 all adopt a three-layer protective structure. The innermost stainless steel guide plate 20 provides a smooth surface, facilitating the sliding of iron filings and resisting wear and corrosion. The middle layer, honeycomb sound insulation plate 21, absorbs and reduces noise generated during cutting. The outermost alloy anti-collision plate 22 provides high strength and impact resistance, resisting the impact of external collisions or large internal debris. The handle 10 located above the motor housing 9 provides a leverage point for manually turning the protective cover, making it easy to use. This protective cover significantly improves operational safety and environmental cleanliness. The three-layer composite structure significantly enhances the durability, impact resistance, and noise reduction capabilities of the protective cover, effectively protecting the machine tool's precision. Combined with the hinged top plate 5 and handle 10 design, it greatly optimizes maintenance convenience and equipment reliability.
[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0033] 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 cover for CNC lathes to prevent metal shavings from flying, characterized in that, The device includes an outer shell panel, on the front side of which are symmetrically arranged triangular side guards. An inclined screen plate is arranged on the side guards. One end of a top plate is connected to the top of the outer shell panel. A hinge is provided at the end of the top plate away from the outer shell panel. The top plate is hinged to the CNC machine tool through the hinge. A bottom plate is arranged below the side guards. A bottom compartment is arranged on the front side of the bottom plate. The bottom compartment can directly hold materials that are difficult to screen and fall off the screen plate. A spiral discharge assembly is arranged inside the bottom compartment. A discharge port for discharging materials is arranged below the bottom plate. A material holding box is arranged below the screen plate. The material holding box can hold materials that fall off the screen plate. A mounting plate is arranged on the front side of the material holding box by screws. The mounting plate is used to seal the material holding box to prevent materials from falling off.
2. A CNC lathe protective cover for preventing metal shavings from flying as described in claim 1, characterized in that, A motor box is located on the side of the outer shell away from the sieve plate. A scraper motor is installed inside the motor box. A cross-shaped scraper is installed through the output end of the scraper motor through the outer shell. The cross-shaped scraper can scrape off the iron filings adhering to the outer shell plate.
3. A CNC lathe protective cover for preventing metal shavings from flying as described in claim 2, characterized in that, The spiral discharge assembly includes a servo motor, a geared motor, and an auger. The servo motor is located on one side of the bottom hopper, and the geared motor is connected to the servo motor. The auger is located inside the bottom hopper, and the geared motor is connected to the auger through a rotating shaft. The discharge assembly enables the bottom hopper to collect and automatically discharge materials.
4. A CNC lathe protective cover for preventing metal shavings from flying as described in claim 3, characterized in that, Sealing strips are provided on the top plate, outer shell plate and side guard plate.
5. A CNC lathe protective cover for preventing metal shavings from flying as described in claim 4, characterized in that, A baffle is provided on the side of the outer shell plate near the side guard plate to further prevent iron filings from splashing outwards.
6. A protective cover for CNC lathes to prevent metal shavings from flying as described in claim 5, characterized in that, The outer shell, top plate, side guards and bottom plate all have a three-layer protective structure, which consists of a stainless steel guide plate, a honeycomb sound insulation plate and an alloy anti-collision plate from the inside to the outside.
7. A CNC lathe protective cover for preventing metal shavings from flying as described in claim 6, characterized in that, A handle is provided on the top of the motor housing.