An apparatus for cleaning the interior of a cylindrical workpiece
By designing a cleaning device for the interior of cylindrical workpieces that combines brushes and air blowing, the problem of laborious cleaning and scratching of iron filings inside medium and large cylindrical workpieces has been solved, achieving efficient and automated cleaning, avoiding scratches, and improving cleaning efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU GOOD FRIEND PRECISION MASCH CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-03
AI Technical Summary
In the existing technology, during the processing of medium and large cylindrical workpieces, the inner cavity is filled with iron filings that adhere to the inner wall. Manual cleaning is laborious and easily causes scratches, resulting in low cleaning efficiency.
A cylindrical workpiece internal cleaning device was designed, which uses a combination of brush and air blowing. The brush is in close contact with the inner surface of the workpiece for cleaning, and air is blown from both ends of the brush to remove iron filings and prevent scratches. The device achieves automated cleaning by using a telescopic cylinder and air pipe system.
It achieves a highly efficient and automated cleaning process, avoiding scratches caused by manual cleaning and improving cleaning efficiency and effectiveness.
Smart Images

Figure CN224444004U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of parts cleaning technology, specifically to a cleaning device for the interior of a cylindrical workpiece. Background Technology
[0002] When existing machine tools process medium and large cylindrical workpieces, they turn the inner surface of the workpieces. During the turning process, the inner cavity of the medium and large cylindrical workpieces will be filled with iron filings, which will adhere to the inner wall. Simply tilting the machine cannot remove all the iron filings, so manual removal is required. However, after the medium and large cylindrical parts are processed, manual cleaning is not only very laborious, but also easy to cause scratches on the inner surface of the medium and large cylindrical parts due to the difficulty in controlling the cleaning force. Utility Model Content
[0003] Purpose of the utility model: The technical problem to be solved by this utility model is to provide a cleaning device for the inside of a cylindrical workpiece, which solves the problem of scratches that occur when iron filings are manually removed from the inside of the processed cylindrical parts.
[0004] Technical solution
[0005] To solve the above problems, the technical solution provided by this utility model is as follows:
[0006] A cylindrical workpiece internal cleaning device includes upper and lower mounting plates, a telescopic rod fixed between the upper and lower mounting plates, a cleaning block fixed on the telescopic shaft of the telescopic rod, an air pipe slidably mounted on the lower mounting plate, and a connection at the bottom of the air pipe to the cleaning block. The cleaning block includes a fixing element and a brush, and the brush is mounted on the fixing element.
[0007] Furthermore, the bottom of the fixing component is provided with a brush fixing screw, the brush is sleeved on the brush fixing screw, and a nut is screwed onto the brush fixing screw.
[0008] Furthermore, the fixing component is provided with a gas transmission pipe, which includes an air inlet channel, an upper air blowing channel, a transmission channel, and a lower air blowing channel.
[0009] Furthermore, the air pipe is connected to the air intake channel, and the air intake channel is connected to the upper blowing channel.
[0010] Furthermore, the transmission channel is disposed inside the brush fixing screw, and the upper air blowing channel is disposed on the brush fixing screw below the nut. The transmission channel connects the upper air blowing channel with the upper air blowing channel.
[0011] Furthermore, the upper air blowing channel is arranged from the inside to the outside of the fixing member. The upper air blowing channel is arranged with multiple pipes surrounding the air inlet channel. The outer ports of the upper air blowing channel are distributed on the outer surface of the fixing member and are evenly spaced on the outer surface of the fixing member.
[0012] Furthermore, the upper air blowing channel ports are equidistantly arranged around the brush fixing screw.
[0013] Furthermore, sensors are fixedly installed on the inner sides of the mounting plates on both the upper and lower sides, and baffles are fixedly installed on the air pipe.
[0014] Furthermore, the mounting plates arranged vertically are provided with an outer shell, and the bottom of the outer shell is provided with an opening, allowing the cleaning block to be suspended at the opening at the bottom of the outer shell.
[0015] Furthermore, the mounting plate located on the lower side is provided with a cleaning air blowing element at the opening of the housing.
[0016] Beneficial effects
[0017] Compared with the prior art, the technical solution provided by this utility model has the following advantages:
[0018] This invention incorporates an automatic cleaning device during the component manufacturing process. The cleaning block features a brush in the middle, with air blowing at both ends. This design allows for the initial removal of rust from the component during brush cleaning, preventing shavings stuck on the brush from scratching the inner surface of the component. Simultaneously, an air rod drives the cleaning block to move, resulting in high cleaning efficiency. Attached Figure Description
[0019] Figure 1 This is an external schematic diagram of Embodiment 1 of the present utility model;
[0020] Figure 2 This is a schematic diagram of the internal structure of Embodiment 1 of the present invention;
[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0022] Figure 4 This is a cross-sectional view of the cleaning block according to Embodiment 1 of this utility model;
[0023] Figure 5 This is a schematic diagram illustrating the use of Embodiment 1 of this utility model. Detailed Implementation
[0024] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0025] Example 1
[0026] Combined with appendix Figure 1-5 A cylindrical workpiece internal cleaning device includes a shell 1, which is a hollow structure. An installation plate 2 is fixedly installed inside the shell 1. The installation plate 2 is fixedly installed on the upper and lower sides inside the shell 1. A telescopic cylinder 3 is fixedly installed between the upper and lower symmetrical installation plates 2. A cleaning block 4 is fixedly installed at the bottom of the telescopic shaft 31 of the telescopic cylinder 3.
[0027] The cleaning block 4 consists of a brush 41 and a fixing member 42 located on the upper side of the brush 41. The fixing member 42 and the brush 41 are combined and fixed to form the cleaning block 4. The bottom of the fixing member 42 is provided with a brush fixing screw 47. The brush 41 is sleeved on the brush fixing screw 47. A nut 48 can be inserted into the brush fixing screw 47. After the brush 41 is sleeved on the brush fixing screw 47, the brush is fixed on the brush fixing screw 47 by tightening the nut 48.
[0028] The shape of the brush 41 corresponds to the cylindrical part that needs to be cleaned. The brush 41 is preferably cylindrical and made of a soft material, preferably a sponge or rubber material, or other soft materials that can be elastically deformed. This prevents the brush from moving along the inner surface of the cylindrical part when it moves in the part that needs to be cleaned, thus preventing scratches from appearing on the inner surface of the cylindrical part.
[0029] The brush 41 is interference-fitted with the cylindrical part that needs to be cleaned, so that the brush 41 can fully and tightly fit the inner surface of the cylindrical part, thereby removing the processing debris attached to the inner surface of the cylindrical part when the brush moves.
[0030] The telescopic cylinder 3 on the mounting plate 2 is fixed to the side of the bushing seat 5. The bushing seat 5 is slidably provided with an air pipe 6. The air pipe 6 slides up and down in the bushing seat 5. The air pipe 6 passes through the bushing seat 5 and extends out of the mounting plate 2 located on the lower side. The bottom of the air pipe 6 is fixedly connected to the cleaning block 4. The air pipe 5 is directly fixedly connected to the fixing member 42.
[0031] The cleaning block 4 is fixed by the telescopic cylinder 3 and the air pipe 3, thereby preventing the cleaning block from rotating during use.
[0032] The air tube 6 has a hollow structure and is used for ventilation. The fixing member 42 is provided with a gas transmission channel 45. The fixing member 42 is preferably cylindrical. The gas transmission channel inside the fixing member 42 includes an air inlet channel 43, an upper blowing channel 44, a transmission channel 45, and a lower blowing channel 46.
[0033] The air intake channel 43 is connected to the bottom of the air pipe 6. The gas transmitted by the air pipe 6 enters the air intake channel 43. The lower side of the air intake channel 43 is connected to the upper air blowing channel 44. The upper air blowing channel 44 is arranged from the inside of the fixing member outward. The upper air blowing channel 44 consists of multiple pipes arranged around the lower side of the air intake channel 43. The outer ports of the upper air blowing channel 44 are distributed on the outer surface of the fixing member 42. The outer ports of the upper air blowing channel 44 are evenly spaced on the outer surface of the fixing member 42, so that the upper air blowing channel 44 can blow air to various positions on the inner surface of the cylindrical component when it vents.
[0034] The transmission channel 45 is set inside the brush fixing screw 47, and the upper air blowing channel 44 is set on the brush fixing screw 47 below the nut 48. The transmission channel 45 connects the upper air blowing channel 44 with the upper air blowing channel 44, so that when the air intake channel 43 intakes air, the airflow can enter the upper air blowing channel 44 and the upper air blowing channel 44.
[0035] After the nut 48 is tightened onto the brush fixing screw 47 to fix the brush, the outer port of the upper air blowing channel 44 is located below the nut 48, so that the nut 48 will not obstruct the air outlet of the upper air blowing channel 44. The ports of the upper air blowing channel 44 are also arranged equidistantly around the brush fixing screw 47.
[0036] The air blowing channels at the top and bottom of the cleaning block 4 blow up the inner surface of the cylindrical component before the brush, which can remove the impurities attached to the inner surface of the component before the brush pushes the impurities. This prevents the impurities from forming scratches on the inner surface of the cylindrical component when the brush pushes the impurities. The upper air blowing channel 44 located on the upper side can also blow the impurities on the top surface of the cylindrical component outward to prevent them from re-entering the cylindrical component.
[0037] The bottom of the outer casing 1 has an opening, the size of which is larger than that of the cleaning block 4. The telescopic shaft 31 of the telescopic air rod 3 and the air tube 6 extend out from the opening, and the cleaning block 4 can be suspended at the opening position at the bottom of the outer casing 1.
[0038] Sensors 7, preferably photoelectric sensors or magnetic sensors, are fixedly installed on the inner sides of the mounting plates 2 on both the upper and lower sides. These sensors 7 are used to determine the standby and extreme positions of the cleaning structure 4. A baffle 8 is fixedly installed on the air pipe 6, located on the upper side of the air pipe 6. When the cleaning block 4 is in the hovering position, the baffle 8 corresponds to the upper sensor 7. When the cleaning block 4 has finished cleaning the cylindrical component, the baffle 8 corresponds to the lower sensor 7. The sensor 7 and the baffle 8 cooperate. When the sensor 7 is a photoelectric sensor, the baffle blocks the sensor 7 to achieve position sensing. When the sensor 7 is a magnetic sensor, the baffle 8 and the sensor 7 are magnetically engaged.
[0039] The mounting plate 2 located on the lower side has a cleaning air blowing component 9 at the opening of the outer shell. The cleaning air blowing component 9 is located on both sides of the mounting position of the telescopic cylinder 3 on the lower mounting plate 2. When the cleaning block 4 is suspended at the opening position, the cleaning air blowing component 9 is opened to blow air to clean the brush and remove impurities from the brush.
[0040] The telescopic cylinder 3 is equipped with a magnetic induction switch and an external guide rod proximity switch to prevent unnecessary stoppages in the automatic line if the cylinder induction switch malfunctions. The telescopic cylinder 3 also features pilot one-way control. During up and down cleaning, the pilot one-way control prevents the cleaning head from falling down immediately after the air supply is cut off, and keeps it in the original position.
[0041] A limiting sleeve 51 can be fixedly installed inside the housing 1. The limiting sleeve 51 is installed on the lower side of the sensor located on the lower side to prevent the limiting sleeve 51 from blocking the baffle 8 from cooperating with the sensor 7 located on the lower side.
[0042] An air tank 10 is also fixedly installed inside the outer casing 1 on the side of the mounting plate 2. The air tank 10 is used to supply air to the telescopic air rod 3, the air pipe 6, and the cleaning air blowing component 9. An air supply hose is connected between the air tank 10 and the air supply to the telescopic air rod 3 and the air pipe 6.
[0043] The cleaning device can be directly installed on the machining line of the machine tool. It can be equipped with a bolt fixing structure that cooperates with the machine tool. The cleaning device is fixed to the production line by bolts, so that after the machine tool finishes processing the cylindrical workpiece, the cleaning device can directly clean the inside of the cylindrical workpiece, which is convenient and quick.
[0044] When in use, the telescopic air rod 3 is opened, which drives the telescopic shaft 31 to descend. The lower side of the telescopic shaft 31 drives the cleaning block 4 to move. The air tank 10 supplies air to the air pipe 6. The upper air blowing channel 44 and the lower air blowing channel 46 on the cleaning block 4 blow air. As the cleaning block 4 moves, it can initially blow away the iron filings attached to the inner wall of the cylindrical workpiece. Then the brush 41 cleans it, causing the iron filings to fall into the machine tool instantly.
[0045] After cleaning is completed, the telescopic cylinder 3 drives the cleaning block 4 to rise. The cleaning block 4 is suspended between the cleaning air blowers 9, and the cleaning air blowers 9 blow air onto the cleaning block 4 to remove the impurities left on the cleaning block 4.
[0046] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. An apparatus for cleaning the interior of a cylindrical workpiece, characterized by, The device includes upper and lower mounting plates, with a telescopic rod fixed between the upper and lower mounting plates. A cleaning block is fixed on the telescopic shaft of the telescopic rod. An air pipe is slidably mounted on the lower mounting plate. The bottom of the air pipe is connected to the cleaning block. The cleaning block includes a fixing component and a brush, with the brush mounted on the fixing component.
2. The apparatus of claim 1, wherein The bottom of the fixing component is provided with a brush fixing screw, the brush is sleeved on the brush fixing screw, and a nut is screwed on the brush fixing screw.
3. A device for cleaning the interior of a cylindrical workpiece according to claim 2, wherein The fixing component is provided with a gas transmission pipe, which includes an air inlet channel, an upper air blowing channel, a transmission channel, and a lower air blowing channel.
4. A device for cleaning the interior of a cylindrical workpiece according to claim 3, wherein The air pipe is connected to the air intake channel, and the air intake channel is connected to the upper blowing channel.
5. A device for cleaning the interior of a cylindrical workpiece according to claim 4, wherein The transmission channel is located inside the brush fixing screw, and the upper air blowing channel is located on the brush fixing screw below the nut. The transmission channel connects the upper air blowing channel with the upper air blowing channel.
6. A device for cleaning the interior of a cylindrical workpiece according to claim 4, wherein The upper air blowing channel is arranged from the inside to the outside of the fixing member. The upper air blowing channel is composed of multiple pipes surrounding the air inlet channel. The outer ports of the upper air blowing channel are distributed on the outer surface of the fixing member and are evenly spaced on the outer surface of the fixing member.
7. A device for cleaning the interior of a cylindrical workpiece according to claim 5, wherein The upper air blowing channel ports are equidistantly arranged around the brush fixing screw.
8. The apparatus of claim 1 wherein, Sensors are fixedly installed on the inner side of the mounting plates on both the top and bottom sides, and baffles are fixedly installed on the air pipe.
9. The apparatus of claim 1 wherein, The mounting plates, which are set at the top and bottom, are covered with a housing. The bottom of the housing has an opening, and the cleaning block can be suspended at the opening at the bottom of the housing.
10. The apparatus of claim 9, wherein, The mounting plate located on the lower side has a cleaning air blowing element at the opening of the housing.