Protective device for cutting round metal piece
By combining airflow and liquid curtain protection, along with magnetic plates and dust collection devices, the problem of flying debris during the cutting of round metal parts is solved, achieving both safety and efficient debris collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-31
AI Technical Summary
In existing technologies, the small debris and dust that fly out during the cutting of circular metal parts cannot be effectively blocked, resulting in poor protection and posing safety hazards.
The system employs a combination of airflow and liquid curtain protection. Pressurized gas and cutting fluid are used to form a waterfall-like liquid curtain, which, together with a magnetic plate and a dust collection device, controls the movement trajectory of debris. An electric push rod drives the protective cover to rotate, thereby enhancing the protective effect.
It effectively prevents the splashing of fine chips and dust, improves processing safety, and achieves efficient chip collection and solid-liquid separation of cutting fluid.
Smart Images

Figure CN224059332U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circular metal part processing technology, and in particular to a protective device for cutting circular metal parts. Background Technology
[0002] Circular metal parts refer to mechanical components with the geometric characteristics of a rotating body, which are based on metal materials. Their cross-sectional profile is usually circular or approximately circular, and the overall structure is symmetrically distributed around the central axis. The machining of circular metal parts is mainly achieved by removing material through the relative motion between the rotating workpiece and the feed tool, so as to form the required circular profile, size and surface accuracy.
[0003] For example, CN221848864U discloses a metal material cutting device, including a support plate, a protective cover fixedly installed on the surface of the support plate, a fixing component slidably installed on the surface of the support plate, a cutting component fixedly installed inside the protective cover, a water pump fixedly installed on one side of the protective cover, the output end of the water pump fixedly connected to the cutting component, a collection box fixedly installed on the lower surface of the support plate, and a water inlet pipe fixedly installed on the water inlet end of the water pump.
[0004] In existing technologies, small debris, grinding shavings, or dust will be generated during the cutting process. Simple protective covers are not very effective at blocking small debris and dust. At the connection points of the protective cover, small debris will fly out, causing debris to be ejected from the inside of the protective cover, which will cause injury to operators outside and affect the protective effect. Utility Model Content
[0005] The purpose of this invention is to solve the problem in the prior art that small chips, grinding shavings or dust will fly during the cutting process. Simple protective covers are not effective in blocking small chips and dust, resulting in small chips flying. Therefore, a protective device for cutting circular metal parts is proposed.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a protective device for cutting circular metal parts, comprising a housing, a first protective mechanism installed on the top side of the housing, the first protective mechanism comprising a protective cover, a second protective mechanism installed on the inner side of the protective cover, the second protective mechanism comprising a fixing frame, a second water supply pipe fixedly connected to the outer side of the fixing frame, a first water supply pipe fixedly connected to one side of the second water supply pipe, one end of the first water supply pipe passing through one side of the protective cover, a second air pipe fixedly connected to the bottom side of the fixing frame, a first air pipe fixedly connected to one side of the second air pipe, one end of the first air pipe passing through one side of the protective cover, and magnetic plates fixedly connected to both sides of the inner side of the protective cover.
[0007] Preferably, a vacuum tube is fixedly connected to the inside of the protective cover, and a connecting tube is fixedly connected to one side of the vacuum tube, with one end of the connecting tube passing through one side of the protective cover.
[0008] Preferably, a first mounting block is fixedly connected to both outer sides of the protective cover, and an electric push rod is rotatably connected to one end of the first mounting block.
[0009] Preferably, the other end of the electric push rod is rotatably connected to a second mounting block, and one side of the second mounting block is fixedly connected to the outside of the housing.
[0010] Preferably, rotating plates are fixedly connected to both outer sides of the protective cover, and one end of the rotating plate is rotatably connected to one side of the casing.
[0011] Preferably, a placement platform is fixedly connected to the inner side of the housing, and a processing component is disposed above the placement platform, with the processing component fixedly connected to the inner side of the housing.
[0012] Preferably, a filter screen is fixedly connected to the bottom side of the housing, and a water collection frame is fixedly connected to the outside of the filter screen.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, the cutting fluid is sent to the interior of the second water supply pipe through the first water supply pipe and sprayed out from the nozzle on the second water supply pipe to form a waterfall-like liquid curtain. After the outside air is pressurized, it enters the interior of the second air supply pipe through the first air pipe and is sprayed out from the nozzle on the second air pipe to form an airflow. There is a certain angle between the liquid curtain and the airflow, which work together to improve the protective effect during cutting. When the airflow and the liquid curtain work together, the movement trajectory of the debris is more easily controlled under the dual action of liquid adhesion force and airflow driving force.
[0015] 2. In this utility model, the electric push rod rotates while working, driving the rotating plate to rotate on the machine housing, thereby controlling the protective cover to rotate to cover the top of the machine housing. The protective cover can protect the processing process and improve the safety of processing. Attached Figure Description
[0016] Figure 1 This utility model provides a schematic diagram of the working connection structure of the first protective mechanism of a protective device for cutting circular metal parts.
[0017] Figure 2 This utility model provides a schematic diagram of the connection structure of the first protective mechanism in the open state of a protective device for cutting circular metal parts.
[0018] Figure 3 This utility model provides a schematic diagram of the internal planar structure of a protective device for cutting circular metal parts;
[0019] Figure 4 This utility model presents a schematic diagram of the connection structure of the second protective mechanism of a protective device for cutting circular metal parts.
[0020] Legend: 1. Housing; 2. First protective mechanism; 21. Protective cover; 22. First mounting block; 23. Rotating plate; 24. Electric push rod; 25. Second mounting block; 3. Second protective mechanism; 31. Magnetic plate; 32. Dust suction pipe; 33. Connecting pipe; 34. First air pipe; 35. First water supply pipe; 36. Fixing frame; 37. Second air pipe; 38. Second water supply pipe; 4. Processing component; 5. Placement platform; 6. Filter screen; 7. Water collection frame. Detailed Implementation
[0021] 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.
[0022] 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.
[0023] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a protective device for cutting circular metal parts, including a housing 1. A first protective mechanism 2 is installed on the top side of the housing 1. The first protective mechanism 2 includes a protective cover 21. A second protective mechanism 3 is installed on the inner side of the protective cover 21. The second protective mechanism 3 includes a fixing frame 36. A second water supply pipe 38 is fixedly connected to the outer side of the fixing frame 36. A first water supply pipe 35 is fixedly connected to one side of the second water supply pipe 38. One end of the first water supply pipe 35 passes through one side of the protective cover 21. A second air pipe 37 is fixedly connected to the bottom side of the fixing frame 36. A first air pipe 34 is fixedly connected to one side of the second air pipe 37. One end of the first air pipe 34 passes through one side of the protective cover 21. Magnetic plates 31 are fixedly connected to both sides of the inside of the protective cover 21. A dust suction pipe 32 is fixedly connected to the inner side of the protective cover 21. A connecting pipe 33 is fixedly connected to one side of the dust suction pipe 32. One end of the connecting pipe 33 passes through one side of the protective cover 21.
[0024] The protective cover 21 covers the top of the machine housing 1. During processing, one end of the first water supply pipe 35 is connected to a water pump, which delivers the cutting fluid through the first water supply pipe 35 to the inside of the second water supply pipe 38. The fluid is then sprayed out from the nozzles on the second water supply pipe 38, which are all tilted outwards, allowing the cutting fluid to accurately slide down the inner wall of the protective cover 21, forming a waterfall-like liquid curtain. At the same time, one end of the first air pipe 34 is connected to an air pump. After the outside air is pressurized, it enters the inside of the second air pipe 37 through the first air pipe 34, and the fluid is sprayed out from the nozzles on the second air pipe 37. The nozzle on the second air pipe 37 is vertically downward, causing the pressurized gas to be ejected downward, forming an airflow. There is a certain angle between the liquid curtain and the airflow, which work together to improve the protection effect during cutting. When the airflow and the liquid curtain work together, the movement trajectory of the debris is more easily controlled under the dual action of liquid adhesion force and airflow driving force. At the same time, the connecting pipe 33 is connected to the dust pump, which sucks the nearby debris into the interior of the dust suction pipe 32 through the horizontally set dust suction hood in the inner ring of the dust suction pipe 32, and sends it out through the connecting pipe 33, thereby collecting and processing the debris.
[0025] Example 2: Figure 2 and Figure 3 As shown, a first mounting block 22 is fixedly connected to both sides of the outer side of the protective cover 21. An electric push rod 24 is rotatably connected to one end of the first mounting block 22. A second mounting block 25 is rotatably connected to the other end of the electric push rod 24. One side of the second mounting block 25 is fixedly connected to the outer side of the housing 1. A rotating plate 23 is fixedly connected to both sides of the outer side of the protective cover 21. One end of the rotating plate 23 is rotatably connected to one side of the housing 1. A placement platform 5 is fixedly connected to the inner side of the housing 1. A processing component 4 is arranged above the placement platform 5. The processing component 4 is fixedly connected to the inner side of the housing 1. A filter screen 6 is fixedly connected to the bottom side of the housing 1. A water collection frame 7 is fixedly connected to the outer side of the filter screen 6.
[0026] The electric push rod 24 operates, with its two ends rotatably connected to the protective cover 21 and the housing 1 via the first mounting block 22 and the second mounting block 25, respectively. During operation, the electric push rod 24 rotates, causing the rotating plate 23 connected to the protective cover 21 to rotate on the housing 1, thereby controlling the protective cover 21 to rotate to cover the top of the housing 1. A circular metal part is placed on the placement table 5. The processing component 4 consists of a linear module and a cutting component, driving the cutting component to move and process the metal part. The protective cover 21 can protect the processing process and improve processing safety. A filter screen 6 and a water collection frame 7 are provided on the lower side of the housing 1. The filter screen 6 filters the debris, which remains on the filter screen 6, while the cutting fluid is separated to the inside of the water collection frame 7, achieving solid-liquid separation.
[0027] The operating method and working principle of this device are as follows: The electric push rod 24 rotates simultaneously, causing the rotating plate 23 connected to the protective cover 21 to rotate on the machine housing 1. This causes the protective cover 21 to cover the top of the machine housing 1, placing the circular metal part on the placement table 5. The processing assembly 4 then processes the metal part. The protective cover 21 protects the metal part during the processing. During processing, one end of the first water supply pipe 35 is connected to a water pump, which delivers cutting fluid through the first water supply pipe 35 to the inside of the second water supply pipe 38. The fluid is then sprayed from the nozzles on the second water supply pipe 38, which are all tilted outwards to ensure accurate delivery of the cutting fluid from the protective cover. The inner wall of the cover 21 slides down, forming a waterfall-like water mist. At the same time, one end of the first air pipe 34 is connected to an air pump. After the outside air is pressurized, it enters the interior of the second air pipe 37 through the first air pipe 34 and is sprayed out from the nozzle on the second air pipe 37 to form a mist. Meanwhile, the connecting pipe 33 is connected to a dust pump, which sucks nearby debris into the interior of the dust suction pipe 32 through the horizontally set dust suction cover inside the dust suction pipe 32 and sends it out through the connecting pipe 33, thereby collecting and processing the debris. A filter screen 6 and a water collection frame 7 are provided on the lower side of the casing 1. The debris is filtered through the filter screen 6 and remains on the filter screen 6. The cutting fluid is separated and collected inside the water collection frame 7.
[0028] 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 cutting round metal pieces, comprising a casing (1), characterized in that: The top side of the shell (1) is provided with a first protection mechanism (2), the first protection mechanism (2) comprises a protective cover (21), the inner side of the protective cover (21) is provided with a second protection mechanism (3), the second protection mechanism (3) comprises a fixed frame (36), the outer side of the fixed frame (36) is fixedly connected with a second water pipe (38), one side of the second water pipe (38) is fixedly communicated with a first water pipe (35), one end of the first water pipe (35) penetrates through one side of the protective cover (21), the bottom side of the fixed frame (36) is fixedly connected with a second air pipe (37), one side of the second air pipe (37) is fixedly communicated with a first air pipe (34), one end of the first air pipe (34) penetrates through one side of the protective cover (21), both sides of the inside of the protective cover (21) are fixedly connected with magnetic plates (31).
2. A device for protecting a circular metal part from cutting according to claim 1, characterized in that: The inner side of the protective cover (21) is fixedly connected with a dust suction pipe (32), one side of the dust suction pipe (32) is fixedly communicated with a connecting pipe (33), one end of the connecting pipe (33) penetrates through one side of the protective cover (21).
3. The device according to claim 1, wherein: Both sides of the outside of the protective cover (21) are fixedly connected with first mounting blocks (22), one end of the first mounting block (22) is rotatably connected with an electric push rod (24).
4. A device according to claim 3, wherein: The other end of the electric push rod (24) is rotatably connected with a second mounting block (25), one side of the second mounting block (25) is fixedly connected to the outer side of the shell (1).
5. The device of claim 1, wherein: Both sides of the outside of the protective cover (21) are fixedly connected with rotating plates (23), one end of the rotating plate (23) is rotatably connected with one side of the shell (1).
6. The device of claim 1, wherein: The inner side of the shell (1) is fixedly connected with a placing table (5), the upper side of the placing table (5) is provided with a processing assembly (4), the processing assembly (4) is fixedly connected to the inner side of the shell (1).
7. The device of claim 1, wherein: The bottom side of the shell (1) is fixedly connected with a filter screen (6), the outer side of the filter screen (6) is fixedly connected with a water collecting frame (7).
Citation Information
Patent Citations
Metal material cutting device
CN221848864U