Cleaning device

By using the nozzles and fixtures of the cleaning equipment to clean threaded holes with liquid and gas, the problem of debris and dirt at the bottom of the threaded holes affecting the assembly yield is solved, achieving efficient cleaning and resource recycling, and improving assembly efficiency.

CN224128035UActive Publication Date: 2026-04-17HONGFUJIN PRECISION ELECTRONICS ZHENGZHOU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HONGFUJIN PRECISION ELECTRONICS ZHENGZHOU
Filing Date
2025-04-14
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In the assembly of 3C products, when CCD imaging is used for positioning and assembly, debris and dirt at the bottom of the threaded hole affect the clarity, resulting in a low assembly yield.

Method used

A cleaning device has been designed, including a nozzle, a clamping assembly, a water supply and drainage mechanism, and an air supply mechanism. The nozzle sprays liquid and gas to clean threaded holes and enables the recycling of liquid. The clamping assembly and filter screen are combined to stabilize the workpiece and improve the cleaning accuracy and efficiency.

Benefits of technology

It effectively removes debris and dirt from the bottom of threaded holes, improves assembly yield, enables the recycling of liquids and the recovery of resources, and reduces the risk of environmental pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The cleaning equipment comprises a cleaning mechanism, a water supply and drainage mechanism and an air supply mechanism, the cleaning mechanism comprises spray heads, a clamp assembly and a bottom plate, the clamp assembly comprises a supporting plate, the spray heads are arranged around the supporting plate, and the supporting plate is used for containing workpieces; the water supply and drainage mechanism comprises a liquid storage tank and a first container, the liquid storage tank is communicated with the first container, the spray head is communicated with the liquid storage tank, the bottom plate is arranged above the first container, and a first through hole penetrating through the bottom plate is formed in the bottom plate; the spray head and the clamp assembly are located on the surface, away from the first container, of the bottom plate. The liquid storage tank is used for supplying liquid to the spray head, and the first container is used for collecting the liquid sprayed by the spray head and used for cleaning the workpiece; and the air supply mechanism is communicated with the spray head. According to the cleaning equipment provided by the invention, water can be recycled while workpieces are cleaned.
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Description

Technical Field

[0001] This application relates to the field of cleaning technology, and more particularly to a cleaning device. Background Technology

[0002] In the assembly of 3C products, automated assembly lines are preferred to reduce manpower, lower costs, and increase efficiency. Currently, CCD imaging is mainly used for positioning and inspection in assembly lines. However, due to the characteristics of machining, the bottom of the threaded holes on the metal casing of 3C products often accumulates debris or dirt during processing, affecting the clarity of CCD imaging and hindering accurate positioning, resulting in low assembly yield. Therefore, there is an urgent need to develop a device that can effectively remove debris and dirt from the bottom of threaded holes. Utility Model Content

[0003] In view of this, this application provides a cleaning device that can solve the above-mentioned technical problems.

[0004] A cleaning device includes a cleaning mechanism, a water supply and drainage mechanism, and an air supply mechanism. The cleaning mechanism includes a nozzle, a clamping assembly, and a base plate. The nozzle and the clamping assembly are disposed on the base plate. The clamping assembly includes a support plate. The nozzle is arranged around the support plate, and the support plate is used to place a workpiece. The water supply and drainage mechanism includes a liquid storage tank and a first container. The liquid storage tank and the first container are connected. The nozzle is connected to the liquid storage tank. The base plate is disposed above the first container. The base plate has a first through hole penetrating the base plate. The nozzle and the clamping assembly are located on the surface of the base plate opposite to the first container. The liquid storage tank is used to supply liquid to the nozzle. The first container is used to collect the liquid sprayed by the nozzle and used to clean the workpiece. The air supply mechanism is connected to the nozzle.

[0005] In some embodiments, the clamping assembly further includes a boss and a positioning block, the boss being embedded in the support plate, the surface of the boss opposite to the base plate protruding from the surface of the support plate opposite to the base plate, and the positioning block being disposed on the surface of the support plate opposite to the base plate, the positioning block being disposed around the boss.

[0006] In some embodiments, the clamping assembly further includes an adsorption disk embedded in the boss, wherein the surface of the adsorption disk facing away from the support plate is flush with the surface of the boss facing away from the support plate, or the surface of the adsorption disk facing away from the support plate protrudes beyond the surface of the boss facing away from the support plate.

[0007] In some embodiments, the cleaning mechanism further includes a filter screen embedded in the base plate.

[0008] In some embodiments, the filter screen is arranged around the nozzle.

[0009] In some embodiments, the cleaning mechanism further includes a support assembly, the clamping assembly being detachably mounted above the base plate via the support assembly.

[0010] In some embodiments, the cleaning equipment further includes a control component electrically connected to the water supply and drainage mechanism and the gas supply mechanism.

[0011] In some embodiments, the cleaning equipment further includes a dust cover disposed on the surface of the base plate opposite to the first container, the dust cover housing the clamp assembly, and the dust cover engaging with the edge of the first container.

[0012] In some embodiments, the cleaning equipment further includes a workbench and a second container. The workbench includes a first frame, a second frame, a first side plate, and a second side plate. The first side plate is connected between the first frame and the second frame, and the second side plate is connected between the first frame and the second frame and is disposed opposite to the second side plate. When viewed along a first direction, the first frame is located above the second frame.

[0013] The first container and the second container are arranged side by side on the surface of the first frame away from the second frame, and the liquid storage tank is arranged above the second frame.

[0014] In some embodiments, the cleaning equipment further includes a transport vehicle located on one side of the workbench, the transport vehicle being used to collect solid and liquid waste.

[0015] The cleaning equipment provided in this application has a nozzle that is connected to both a water supply and drainage mechanism and an air supply mechanism, so that the nozzle can spray both liquid and gas to clean the bottom of the threaded holes of the product to be cleaned; and the water supply and drainage mechanism in this cleaning equipment can realize water recycling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a cleaning device provided in one embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the cleaning mechanism provided in one embodiment of this application.

[0018] Figure 3 This is a schematic diagram of the structure of the base plate and filter screen provided in one embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the structure of a dust cover and a first container provided in one embodiment of this application.

[0020] Figure 5 This is a schematic diagram of the structure of a liquid storage tank provided in one embodiment of this application.

[0021] Explanation of main component symbols

[0022]

[0023]

[0024] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the features in the embodiments of this application can be combined with each other.

[0026] The following description sets forth numerous specific details to provide a thorough understanding of the embodiments of this utility model. The described embodiments are only a portion, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of the embodiments of this utility model.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which embodiments of this invention pertain. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0028] Please see Figure 1 This application provides a cleaning device 100, including a cleaning mechanism 20, a water supply and drainage mechanism 30, and an air supply mechanism. The water supply and drainage mechanism 30 is used to provide water to the cleaning mechanism 20, and the air supply mechanism is used to provide air to the cleaning mechanism 20.

[0029] Please see Figure 1 and Figure 2 The cleaning mechanism 20 includes a nozzle 24, a clamping assembly 21, and a base plate 221. The nozzle 24 and the clamping assembly 21 are mounted on the base plate 221. The clamping assembly 21 includes a support plate 211. The nozzle 24 is arranged around the support plate 211. The support plate 211 is used to place the workpiece, and the nozzle 24 is used to spray water or air toward the workpiece.

[0030] Please see Figures 1 to 3The water supply and drainage mechanism 30 includes a liquid storage tank 32, a first container 31, and a second container 33. The liquid storage tank 32 is connected to the first container 31 and the second container 33. The nozzle 24 is connected to the liquid storage tank 32. The liquid storage tank 32 supplies liquid to the nozzle 24. The first container 31 collects the liquid sprayed from the nozzle 24 after cleaning the workpiece. The second container 33 stores liquid and supplies liquid to the liquid storage tank 32. A base plate 221 is disposed above the first container 31, and the base plate 221 has a first through hole 223 penetrating the base plate 221. The nozzle 24 and the clamp assembly 21 are located on the surface of the base plate 221 opposite to the first container 31. An air supply mechanism is connected to the nozzle 24.

[0031] The liquid storage tank 32 supplies liquid to the nozzle 24 to clean the workpiece placed on the support plate 211. After cleaning, the liquid that has cleaned the workpiece flows to the base plate 221 and through the first through hole 223 on the base plate 221 to the first container 31, where the liquid is collected. Since the first container 31 is connected to the liquid storage tank 32, the liquid collected in the first container 31 can be adjusted to flow back into the liquid storage tank 32 to replenish its liquid reserve. The liquid returning to the liquid storage tank 32 can then flow back to the nozzle 24 for cleaning the workpiece, thus achieving liquid recycling. The second container 33 contains liquid and is connected to the liquid storage tank 32, and is used to further replenish the liquid in the liquid storage tank 32.

[0032] In this embodiment, the base plate 221 is snapped onto the edge of the opening of the first container 31 and seals the opening of the first container 31, which can reduce the risk that solid waste such as waste chips and dirt sprayed off the workpiece will directly enter the first container 31 and contaminate the liquid in the first container 31 or block the discharge port connecting the first container 31 and the storage tank 32.

[0033] Please see Figure 2In some embodiments, the clamping assembly 21 further includes a boss 212 and a positioning block 213. The boss 212 is embedded in the support plate 211, and the surface of the boss 212 facing away from the base plate 221 protrudes from the surface of the support plate 211 facing away from the base plate 221. The boss 212 is used to place the workpiece. The positioning block 213 is disposed on the surface of the support plate 211 facing away from the base plate 221, and the positioning block 213 is arranged around the boss 212 and engages with the boss 212. The positioning block 213 is used to position the workpiece to be cleaned. The engagement of the positioning block 213 with the boss 212 further enhances the connection between the boss 212 and the support plate 211, thereby further reducing the probability of workpiece displacement. The distribution of the positioning blocks 213 is designed according to the shape and size of the workpiece. When the workpiece is placed on the boss 212, the positioning block 213 fixes the workpiece on the boss 212, so that the workpiece to be cleaned is in a preset position, thereby allowing the nozzle 24 to accurately align with the threaded hole on the workpiece, improving cleaning efficiency.

[0034] In this embodiment, there are multiple positioning blocks 213. The slots formed by the multiple positioning blocks 213 are used to position and place the workpiece to be cleaned, which can better stabilize the workpiece and prevent it from shifting due to excessive water or air flow velocity from the nozzle 24, thereby further improving the cleaning efficiency.

[0035] Please see Figure 2 In some embodiments, the clamping assembly 21 further includes an adsorption plate 214, which is embedded in the boss 212. The surface of the adsorption plate 214 facing away from the support plate 211 is flush with the surface of the boss 212 facing away from the support plate 211, or the surface of the adsorption plate 214 facing away from the support plate 211 protrudes from the surface of the boss 212 facing away from the support plate 211 so that the adsorption plate 214 contacts and adsorbs the workpiece. The adsorption plate 214 is provided with a through groove 215 and a second through hole 216 through the adsorption plate 214. The second through hole 216 is arranged around the through groove 215 and is connected to a vacuum generator. The second through hole 216 on the adsorption plate 214 is connected to an external vacuum generator, so that the adsorption plate 214 has suction force, which can firmly fix the workpiece on the adsorption plate 214, reduce the risk of workpiece displacement due to excessive water or air flow velocity of the nozzle 24, and improve the accuracy of cleaning.

[0036] Please see Figure 1 and Figure 3 In some embodiments, the cleaning mechanism 20 further includes a filter screen 222, which is embedded in the first through hole 223 of the base plate 221. Embedding the filter screen 222 in the base plate 221 allows for the separation of wet and dry waste, dirt, and water sprayed onto the base plate 221, guiding the water flow into the first container 31 for water recycling and reuse. Larger waste or dirt remains on the base plate 221, which can then be cleaned.

[0037] In some embodiments, the filter screen 222 is arranged around the nozzle 24, so that the filter screen 222 is more evenly distributed. When the liquid is sprayed from the nozzle 24 onto the base plate 221, the filter screen 222 can guide the accumulated liquid on the base plate 221 to flow into the first container 31 more quickly, which helps to clear the accumulated liquid on the base plate 221 in a timely manner.

[0038] In this embodiment, the base plate 221 can be made of stainless steel or other materials that are not prone to rust. The mesh size of the filter screen 222 can be selected from 4 to 75 mesh. This is just an example; this application does not impose special restrictions on the material of the base plate 221 or the mesh size of the filter screen 222. Appropriate materials and mesh sizes can be selected according to actual design requirements.

[0039] Please see Figure 1 and Figure 4 In some embodiments, the cleaning device 100 further includes a dust cover 313, which is disposed on the surface of the base plate 221 opposite to the first container 31, and houses the cleaning mechanism 20. The dust cover 313 engages with the edge of the first container 31 to prevent external dust from contaminating the cleaning mechanism 20. In this embodiment, the dust cover 313 may be made of transparent plastic to facilitate observation of the clamp assembly 21 through the dust cover 313.

[0040] Please see Figure 1 and Figure 2 In some embodiments, the cleaning mechanism 20 further includes a support assembly 23, through which the clamp assembly 21 is detachably mounted above the base plate 221. In this embodiment, the support assembly 23 has a certain height, which allows the clamp assembly 21 to be mounted on the base plate 221. This helps to maintain the safety of the workpiece to be cleaned, reduces the risk of the workpiece being contaminated by debris and dirt sprayed onto the base plate 221, and also reduces the possibility of excessive water accumulation on the base plate 221 due to the low filtration speed of the filter screen 222, which could then contaminate the workpiece.

[0041] Please see Figure 1 In some embodiments, the cleaning device 100 further includes a control component 40, which is electrically connected to the water supply and drainage mechanism 30 and the air supply mechanism. The control component 40 is used to control the switching between the water and air paths in the nozzle 24, specifically including controlling the opening and closing of the first valve 34 in the water and air paths, and controlling the opening and closing of the valve corresponding to the liquid storage tank 32. In other embodiments, the control component 40 can also be used to control the opening and closing of the vacuum generator connected to the adsorption plate 214. The control component 40 can be a programmable logic controller (PLC).

[0042] Please see Figure 1 and Figure 5 In some embodiments, the storage tank 32 includes a tank body 321 and a water level monitoring system. The water level monitoring system is installed on and connected to the tank body 321, and the control component 40 is electrically connected to the water level monitoring system. The water level monitoring system is used to detect the upper and lower limits of the liquid level in the tank body 321. In this embodiment, a first valve 34 is provided in the pipe connecting the storage tank 32 and the nozzle 24. The first valve 34 acts as a switch for connecting the liquid in the storage tank 32 to the nozzle 24.

[0043] Please see Figure 1 and Figure 5 In some embodiments, a second valve 35 is provided in the pipe connecting the second container 33 and the storage tank 32. When the water level monitoring system detects that the liquid in the storage tank 32 has fallen below the lower limit water level, the control system will open the second valve 35, allowing the liquid in the second container 33 to flow into the storage tank 32, thus providing timely replenishment of the liquid in the storage tank 32.

[0044] Please see Figure 1 In some embodiments, the cleaning device 100 further includes a workbench 50, which includes a first frame 51, a second frame 52, a first side plate 53, and a second side plate 54. The first side plate 53 is connected between the first frame 51 and the second frame 52, and the second side plate 54 is connected between the first frame 51 and the second frame 52 and is disposed opposite to the second side plate 54. Viewed along the first direction X, the first frame 51 is located above the second frame 52. The second container 33 and the first container 31 are arranged side by side on the surface of the first frame 51 facing away from the second frame 52, and the liquid storage tank 32 is disposed on the second frame 52. In this manner, the second container 33 and the first container 31 are located above the liquid storage tank 32, which facilitates the flow of liquid in the second container 33 into the liquid storage tank 32 and the return of liquid in the first container 31 into the liquid storage tank 32.

[0045] In this embodiment, there are multiple liquid storage tanks 32. Increasing the number of liquid storage tanks 32 can increase the liquid storage capacity.

[0046] In some embodiments, the bottom of the first container 31 is provided with a first discharge port and a second discharge port. The first discharge port is connected to the storage tank 32, and the second discharge port is used to discharge the liquid in the first container 31. When the liquid collected in the first container 31 becomes dirty due to multiple recycling, it can be discharged through the second discharge port. At this time, the second valve 35 controlling the connection between the second container 33 and the storage tank 32 can be opened, allowing the liquid stored in the second container 33 to flow into the storage tank 32, so as to replenish the liquid reserve in the storage tank 32 in a timely manner.

[0047] Please see Figure 1In some embodiments, the cleaning equipment 100 also includes a transport vehicle 60, which is located on one side of the workbench 50 and is used to collect solid and liquid waste. For example, solid waste such as debris and dirt sprayed from the workpiece onto the base plate 221 can be collected and cleaned into the transport vehicle 60. If the liquid in the first container 31 becomes too dirty to use after multiple cycles, the wastewater can also be discharged into the transport vehicle 60. The transport vehicle 60 includes casters 55 and directional wheels. If the transport vehicle 60 is full of solid and liquid waste, it can be pushed to a waste disposal point for cleaning.

[0048] The working principle of the cleaning equipment 100 provided in this application is as follows: When the air supply mechanism is turned on, the nozzle 24 sprays air to clean components such as the support plate 211, boss 212, positioning block 213, and suction plate 214. The workpiece to be cleaned is placed in the slot formed by the positioning block 213, and the vacuum generator is turned on, causing the suction plate 214 to have suction force and firmly hold the workpiece. The control component 40 opens the first valve 34 and brings the liquid storage tank 32 to positive pressure. Under the action of positive pressure, the liquid in the liquid storage tank 32 is sprayed through the nozzle 24 to clean the threaded holes of the workpiece with high-pressure water. After cleaning, the liquid storage tank 32 is brought to negative pressure. At this time, there is no more water flow in the nozzle 24. Simultaneously, the control component 40 opens the valve of the air supply mechanism, and the nozzle 24 sprays air to clean the residual water on the workpiece. At the same time, the liquid in the first container 31 returns to the liquid storage tank 32 under negative pressure, realizing the recycling and reuse of the liquid. Turn off the vacuum generator switch to make the adsorption plate 214 lose its suction force, and the workpiece can be removed by a robot or manually.

[0049] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A cleaning apparatus, characterized by, include: A cleaning mechanism includes a nozzle, a clamping assembly, and a base plate. The nozzle and the clamping assembly are disposed on the base plate. The clamping assembly includes a support plate. The nozzle is arranged around the support plate. The support plate is used to place a workpiece. A water supply and drainage mechanism includes a liquid storage tank and a first container, the liquid storage tank and the first container being connected in communication, a nozzle being connected in communication with the liquid storage tank, a base plate disposed above the first container, the base plate having a first through hole penetrating the base plate, and the nozzle and the clamping assembly located on the surface of the base plate opposite to the first container; the liquid storage tank is used to supply liquid to the nozzle, and the first container is used to collect the liquid sprayed by the nozzle and used to clean the workpiece; and An air supply mechanism is connected to the nozzle.

2. The cleaning apparatus of claim 1, wherein, The clamping assembly further includes a boss and a positioning block. The boss is embedded in the support plate, and the surface of the boss facing away from the base plate protrudes from the surface of the support plate facing away from the base plate. The positioning block is disposed on the surface of the support plate facing away from the base plate and is arranged around the boss.

3. The cleaning apparatus of claim 2, wherein, The clamping assembly also includes an adsorption plate, which is embedded in the boss. The surface of the adsorption plate facing away from the support plate is flush with the surface of the boss facing away from the support plate, or the surface of the adsorption plate facing away from the support plate protrudes from the surface of the boss facing away from the support plate.

4. The cleaning apparatus of claim 2, wherein, The cleaning mechanism also includes a filter screen, which is embedded in the base plate.

5. The cleaning apparatus of claim 4, wherein, The filter screen is arranged around the nozzle.

6. The cleaning equipment as described in claim 4, characterized in that, The cleaning mechanism also includes a support assembly, and the clamp assembly is detachably mounted above the base plate via the support assembly.

7. The cleaning apparatus of claim 3, wherein, The cleaning equipment also includes a control component, which is electrically connected to the water supply and drainage mechanism and the gas supply mechanism.

8. The cleaning apparatus of claim 7, wherein, The cleaning equipment also includes a dust cover disposed on the surface of the base plate opposite to the first container, the dust cover housing the clamp assembly, and the dust cover engaging with the edge of the first container.

9. The cleaning apparatus of claim 8, wherein, The cleaning equipment also includes a workbench and a second container. The workbench includes a first frame, a second frame, a first side plate, and a second side plate. The first side plate is connected between the first frame and the second frame, and the second side plate is connected between the first frame and the second frame and is disposed opposite to the second side plate. When viewed along a first direction, the first frame is located above the second frame. The first container and the second container are arranged side by side on the surface of the first frame away from the second frame, and the liquid storage tank is arranged above the second frame.

10. The cleaning apparatus of claim 9, wherein, The cleaning equipment also includes a transport vehicle, which is located on one side of the workbench and is used to collect solid and liquid waste.