A rapid cleaning device for PVD coating
By designing an electric push rod and clamping plate structure within the ultrasonic cleaner, combined with air pump and gas drying technology, batch cleaning and rapid drying of PVD coated tools were achieved. This solved the problems of incomplete cleaning of overlapping parts of the tools and cleaning fluid residue, thus protecting the integrity of the coating.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI DUOJINTUCENG TECH CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-21
AI Technical Summary
In the prior art, when cleaning PVD coated tools in batches, the overlapping tool parts are difficult to clean thoroughly, and the residual cleaning solution may cause electrochemical corrosion, affecting the coating performance.
A rapid cleaning device for PVD coatings was designed, which adopts an electric push rod and clamping plate structure in an ultrasonic cleaner. By clamping and moving the tool to change the clamping position, combined with an air pump and gas blowing technology, batch cleaning and rapid drying of the tool can be achieved.
It effectively solves the problem of incomplete cleaning of overlapping parts of the cutting tools, reduces cleaning fluid residue, avoids electrochemical corrosion, and protects the integrity and performance of the coating.
Smart Images

Figure CN224525476U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of PVD coating cleaning devices, specifically a rapid cleaning device for PVD coatings. Background Technology
[0002] PVD coating is short for Physical Vapor Deposition Coating, a technology that deposits a thin film on the surface of an object using physical methods. PVD coating technology primarily involves heating and evaporating or ionizing coating materials (such as metals, alloys, ceramics, etc.) in a high-temperature, high-vacuum environment, transforming them into gaseous atoms, ions, or molecules. These gaseous particles then deposit and condense on the workpiece surface to form a uniform, dense thin film.
[0003] PVD coatings are commonly used on cutting tools. By applying a PVD coating to the tool surface, the tool's hardness, wear resistance, and lubricity are improved, cutting forces and temperatures are reduced, machining accuracy and surface quality are enhanced, and tool life is extended. However, over time, dust, oil, fingerprints, and other contaminants accumulate on the surface of PVD-coated tools. These contaminants affect the coating's appearance and performance. Furthermore, corrosive substances such as acids and alkalis may remain on the coating surface; failure to clean them promptly can lead to corrosion, reducing the coating's protective properties and shortening its lifespan.
[0004] Therefore, the cutting tools are regularly ultrasonically cleaned to remove residual impurities from their surfaces. Since ultrasonic cleaning is often done in batches, each batch contains a certain number of cutting tools, which are cleaned by placing them in the ultrasonic cleaner. However, placing a large number of cutting tools in the ultrasonic cleaner can lead to overlapping, making it difficult to clean the overlapping areas and resulting in unsatisfactory cleaning results.
[0005] Therefore, this utility model provides a rapid cleaning device for PVD coatings. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A rapid cleaning device for PVD coatings according to this utility model includes an ultrasonic cleaner, with a partition fixedly installed inside the ultrasonic cleaner; an electric push rod is fixedly installed inside the ultrasonic cleaner, the output rod of the electric push rod passes through the partition; a placement plate is slidably connected inside the ultrasonic cleaner, and the output rod of the electric push rod is fixedly connected to the placement plate; the top of the placement plate has several through slots and several rectangular slots, with arc-shaped rubber gaskets placed in the through slots; several connecting discs are fixedly installed on the top of the partition; a sealing ring is fixedly installed on the top of the partition, and the sealing ring is slidably and sealingly connected to the output rod of the electric push rod.
[0008] Furthermore, the placement plate has several sliding grooves inside, with two sliding grooves forming a group and symmetrically distributed around the central axis of the through groove. A sliding plate is slidably connected to the sliding groove by a spring. The sliding plate is slidably and sealed to the sliding groove. An arc-shaped clamp is fixedly installed at the end of the sliding plate away from the spring, and the gasket is fixedly connected to the clamp.
[0009] Furthermore, a triangular guide plate is fixedly installed on the top of the clamping plate, and several guide posts are rotatably connected to the inclined surface of the guide plate. Both the guide block and the guide posts are made of flexible material.
[0010] Furthermore, an air pump is provided on one side of the ultrasonic cleaner, and a hollow fixed tube is fixedly installed on the top of the ultrasonic cleaner. Several air guide tubes connected to the interior are fixedly installed on the surface of the fixed tube. The end of the air guide tube away from the fixed tube is connected to the air pump, and several air outlet holes connected to the interior are opened on the surface of the fixed tube.
[0011] Furthermore, a filter screen is fixedly installed inside the air outlet of the fixed tube, and a swing rod is rotatably connected inside the fixed tube via a torsion spring, with a swing ball fixedly installed on the surface of the swing rod.
[0012] Furthermore, two symmetrically arranged guide plates are fixedly installed inside the fixed tube. The guide plates are arc-shaped, and one end of the guide plate abuts against the air guide tube.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The present invention discloses a rapid cleaning device for PVD coating, wherein a machine tool tool coated with PVD is placed into a through groove of a placement plate. Upon entering the through groove, the tool first contacts several guide posts on two guide plates, and the two guide plates are pushed apart by compression, causing the two guide plates, along with two clamping plates, to slide away from each other, thereby increasing the gap between the two clamping plates and facilitating the entry of the tool between them. Once the tool is between the two clamping plates, the clamping plates and sliding plate, under the action of springs, continuously move closer together, thus clamping the tool in conjunction with flexible material gaskets, achieving the function of holding and fixing the tool. After the tool has been cleaned in the ultrasonic cleaner for a period of time, an electric push rod moves the placement plate and the tool further down towards the partition, causing the bottom of the tool to abut against the connecting plate. As the electric push rod and placement plate continue to move downwards, while the tool cannot move further, the clamping position of the tool by the clamping plates and gaskets changes, exposing the previously clamped part of the tool, while the cleaned part is clamped by the clamping plates, thus facilitating the ultrasonic cleaner to clean the clamped part. The designed structure enables batch ultrasonic cleaning of cutting tools. During cleaning, the clamping points are altered, exposing previously clamped areas for effective cleaning. This effectively solves the problem of difficult cleaning of overlapping parts when several tools are stacked in traditional cleaning methods; and the incomplete cleaning that often occurs when using clamps as a solution, as the clamping areas are difficult to clean.
[0015] 2. The rapid cleaning device for PVD coatings described in this utility model, after the tool has undergone ultrasonic cleaning, utilizes an electric push rod to move the tool upwards through a placement plate, removing it from the cleaning fluid within the ultrasonic cleaner. The tool is then slowly moved towards a fixed tube, while simultaneously activating an external air pump. The air pump delivers gas to the fixed tube through several air guide tubes, which, with the assistance of an arc-shaped guide plate, directs the gas to several air outlets. As the gas passes through the outlets, it actuates a swing rod connected to a torsion spring, causing the swing rod to swing and impact a ball towards the filter screen, effectively preventing filter clogging. With the gas sprayed onto the tool through the outlets and filters, and combined with the slow up-and-down movement of the electric push rod, the tool is rapidly dried, reducing cleaning fluid residue on its surface. This avoids the potential for electrochemical corrosion from long-term residue, and the rapid drying also prevents residual cleaning fluid from causing swelling, softening, or other adverse effects on the PVC-coated tool, thus preserving the integrity and performance of the coating. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a three-dimensional structural diagram of the ultrasonic cleaner in this utility model;
[0018] Figure 2 This is a schematic diagram of the rectangular groove in this utility model;
[0019] Figure 3 This is a cross-sectional view of the placement plate in this utility model;
[0020] Figure 4 This utility model Figure 2 A schematic diagram of the structure at point A;
[0021] Figure 5 This is a cross-sectional view of the fixing tube in this utility model;
[0022] Figure 6 This is a top sectional view of the fixed tube in this utility model.
[0023] In the diagram: 1. Ultrasonic cleaner; 2. Partition; 3. Electric push rod; 4. Placement plate; 5. Through groove; 6. Gasket; 7. Rectangular groove; 8. Connecting plate; 9. Sealing ring; 10. Slide groove; 11. Slide plate; 12. Spring; 13. Clamping plate; 14. Guide plate; 15. Guide column; 16. Air pump; 17. Fixed pipe; 18. Air duct; 19. Air outlet; 20. Filter screen; 21. Swing rod; 22. Swing ball; 23. Deflector plate. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] like Figures 1 to 6 As shown in the embodiment of this utility model, a rapid cleaning device for PVD coating includes an ultrasonic cleaner 1, with a partition 2 fixedly installed inside the ultrasonic cleaner 1; an electric push rod 3 is fixedly installed inside the ultrasonic cleaner 1, with the output rod of the electric push rod 3 passing through the partition 2; a placement plate 4 is slidably connected inside the ultrasonic cleaner 1, and the output rod of the electric push rod 3 and the placement plate 4 are fixedly connected; the top of the placement plate 4 has several through grooves 5 and several rectangular grooves 7, with arc-shaped rubber gaskets 6 provided in the through grooves 5; several connecting plates 8 are fixedly installed on the top of the partition 2, and a sealing ring 9 is fixedly installed on the top of the partition 2, with the sealing ring 9 being slidably and sealingly connected to the output rod of the electric push rod 3.
[0026] Specifically, the placement plate 4 has several sliding grooves 10 inside, with two grooves 10 forming a group and symmetrically distributed around the central axis of the through groove 5. A sliding plate 11 is slidably connected to the groove 10 via a spring 12. The sliding plate 11 is slidably connected to the groove 10 in a sealed manner. An arc-shaped clamping plate 13 is fixedly installed at the end of the sliding plate 11 away from the spring 12, and a gasket 6 is fixedly connected to the clamping plate 13. A triangular guide plate 14 is fixedly installed on the top of the clamping plate 13. Several guide posts 15 are rotatably connected to the inclined surface of the guide plate 14. The guide blocks and guide posts 15 are all made of flexible material.
[0027] During operation, the electric push rod 3 inside the ultrasonic cleaner 1 is activated. The output rod of the electric push rod 3 moves the placement plate 4 away from the partition 2, causing the placement plate 4 to leave the cleaning fluid inside the ultrasonic cleaner 1. At this time, a machine tool cutter coated with PVD is placed into the through slot 5 of the placement plate 4. When the cutter enters the through slot 5, it first contacts several guide posts 15 on the two guide plates 14, and by squeezing and pushing open the two guide plates 14, the two guide plates 14, along with the two clamping plates 13, slide away from each other, thereby increasing the gap between the two clamping plates 13 and facilitating the entry of the cutter between them. Once the cutter is between the two clamping plates 13, the clamping plates 13 and the sliding plate 11, under the action of the spring 12, remain close together, thus clamping the cutter with the flexible material gasket 6, achieving the function of holding and fixing the cutter. By repeating the above operation, several cutters are fixed in several through slots 5 of the placement plate 4, thereby achieving a large-scale ultrasonic cleaning of fixed cutters. After the required cutting tool is secured, the electric push rod 3 carries the placement plate 4 and the cutting tool into the ultrasonic cleaner 1, where the cleaning fluid inside the ultrasonic cleaner 1 cleans the cutting tool. After the cutting tool has been cleaned in the ultrasonic cleaner 1 for a period of time, the electric push rod 3 carries the placement plate 4 and the cutting tool further down to the partition 2, so that the bottom of the cutting tool abuts against the connecting plate 8. As the electric push rod 3 and the placement plate 4 continue to move down, the cutting tool cannot move further down. At this point, the clamping position of the clamping plate 13 and the gasket 6 changes, exposing the part of the cutting tool that was originally clamped, while the cleaned part is clamped by the clamping plate 13, thus facilitating the ultrasonic cleaner 1 to clean the clamping part.
[0028] It should be noted that the sealing ring 9 is installed to seal the output rod of the electric push rod 3, preventing the cleaning fluid from flowing out through the gap between the placement plate 4 and the cleaning fluid. At the same time, several rectangular grooves 7 are opened on the placement plate 4 to facilitate the cleaning fluid to quickly flow through the rectangular grooves 7 and submerge the tool for cleaning when the placement plate 4 moves down.
[0029] The structure designed above enables batch ultrasonic cleaning of cutting tools. During cleaning, the clamping points are altered, exposing previously clamped areas for effective cleaning. This effectively solves the problem of difficult cleaning of overlapping parts when several tools are stacked in traditional cleaning methods; and the difficulty in cleaning the clamping areas of the tools when using fixtures, resulting in incomplete cleaning.
[0030] An air pump 16 is installed on one side of the ultrasonic cleaner 1. A hollow fixed tube 17 is fixedly installed on the top of the ultrasonic cleaner 1. Several air guide tubes 18 connected to the interior are fixedly installed on the surface of the fixed tube 17. The end of the air guide tube 18 away from the fixed tube 17 is connected to the air pump 16. Several air outlets 19 connected to the interior are opened on the surface of the fixed tube 17. A filter screen 20 is fixedly installed inside the air outlets 19 of the fixed tube 17. A swing rod 21 is rotatably connected to the interior of the fixed tube 17 through a torsion spring. A swing ball 22 is fixedly installed on the surface of the swing rod 21. Two symmetrically arranged guide plates 23 are fixedly installed inside the fixed tube 17. The guide plates 23 are arc-shaped, and one end of the guide plates 23 abuts against the air guide tubes 18.
[0031] During operation, after the blade completes ultrasonic cleaning, the electric push rod 3 is used again to move the blade upwards through the placement plate 4, away from the cleaning fluid (which can be water-based or selected according to actual conditions) in the ultrasonic cleaner 1, and slowly moves the blade towards the fixed tube 17. Simultaneously, the air pump 16 outside the ultrasonic cleaner 1 is activated. The air pump 16 delivers gas to the fixed tube 17 through several air guide tubes 18, and guides the gas to several air outlets 19 with the assistance of the arc-shaped guide plate 23. As the gas passes through the air outlets 19, it actuates the swing rod 21 connected to the torsion spring, causing the swing rod 21 to swing and impact the swing ball 22 towards the filter screen 20, effectively preventing the filter screen 20 from clogging (the filter screen 20 is installed to reduce impurities entering the fixed tube 17). As the gas is sprayed onto the cutting tool through several vents 19 and several filters 20, and then slowly moved up and down by the electric push rod 3 (without carrying the cutting tool into the cleaning fluid), the cutting tool is quickly dried, reducing the amount of cleaning fluid remaining on the tool surface. This avoids the electrochemical corrosion that may be caused by long-term residue. At the same time, the quick drying also prevents residual cleaning fluid from causing swelling, softening, or other adverse effects on the PVC-coated cutting tool, thus preserving the integrity and performance of the coating.
[0032] Working Principle: By activating the electric push rod 3 inside the ultrasonic cleaner 1, the output rod of the electric push rod 3 moves the placement plate 4 away from the partition 2, causing the placement plate 4 to leave the cleaning fluid inside the ultrasonic cleaner 1. At this time, the machine tool cutter coated with PVD is placed into the through groove 5 of the placement plate 4. When the cutter enters the through groove 5, it first contacts several guide posts 15 on the two guide plates 14, and the two guide plates 14 are pushed open by the pressure, causing the two guide plates 14 and the two clamping plates 13 to slide away from each other, thereby increasing the gap between the two clamping plates 13, thus facilitating the entry of the cutter between the two clamping plates 13. After the cutter enters between the two clamping plates 13, the clamping plates 13 and the sliding plate 11 are always brought closer together under the action of the spring 12, thereby clamping the cutter with the flexible material gasket 6, thus achieving the function of clamping and fixing the cutter. By repeating the above operation, several cutters are fixed in several through grooves 5 of the placement plate 4, thereby realizing a large batch of fixed cutters for ultrasonic cleaning. After the required cutting tool is secured, the electric push rod 3 carries the placement plate 4 and the cutting tool into the ultrasonic cleaner 1, where the cleaning fluid inside the ultrasonic cleaner 1 cleans the cutting tool. After the cutting tool has been cleaned in the ultrasonic cleaner 1 for a period of time, the electric push rod 3 carries the placement plate 4 and the cutting tool further down to the partition 2, so that the bottom of the cutting tool abuts against the connecting plate 8. As the electric push rod 3 and the placement plate 4 continue to move down, the cutting tool cannot move further down. At this point, the clamping position of the clamping plate 13 and the gasket 6 changes, exposing the part of the cutting tool that was originally clamped, while the cleaned part is clamped by the clamping plate 13, thus facilitating the ultrasonic cleaner 1 to clean the clamping part.
[0033] After the cutter has undergone ultrasonic cleaning, the electric push rod 3 is used again to move the cutter upwards through the placement plate 4, removing it from the cleaning fluid inside the ultrasonic cleaner 1. The cutter then slowly moves towards the fixed tube 17. Simultaneously, the air pump 16 outside the ultrasonic cleaner 1 is activated. The air pump 16 delivers gas to the fixed tube 17 through several air guide tubes 18, and, with the assistance of the arc-shaped guide plate 23, directs the gas to several air outlets 19. As the gas passes through the air outlets 19, it actuates the swing rod 21 connected to the torsion spring, causing the swing rod 21 to swing and impact the swing ball 22 towards the filter screen 20, effectively preventing the filter screen 20 from clogging. With the gas sprayed onto the cutter through the air outlets 19 and the filters 20, and combined with the slow up-and-down movement of the electric push rod 3, the cutter is quickly dried, reducing cleaning fluid residue on its surface.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A rapid cleaning device for PVD coating, comprising an ultrasonic cleaner (1), a partition (2) is fixedly installed inside the ultrasonic cleaner (1); characterized in that: An electric push rod (3) is fixedly installed inside the ultrasonic cleaner (1). The output rod of the electric push rod (3) passes through the partition (2). A placement plate (4) is slidably connected inside the ultrasonic cleaner (1). The output rod of the electric push rod (3) and the placement plate (4) are fixedly connected. The top of the placement plate (4) is provided with several through slots (5) and several rectangular slots (7). An arc-shaped rubber gasket (6) is provided in the through slot (5). Several connecting plates (8) are fixedly installed on the top of the partition plate (2). A sealing ring (9) is fixedly installed on the top of the partition plate (2). The sealing ring (9) is slidably connected to the output rod of the electric push rod (3).
2. The rapid cleaning device for PVD coating according to claim 1, characterized in that: The placement plate (4) has several grooves (10) inside. Two grooves (10) are a group and are symmetrically distributed around the central axis of the through groove (5). A slide plate (11) is slidably connected to the groove (10) by a spring (12). The slide plate (11) is slidably connected to the groove (10) in a sealed manner. An arc-shaped clamp (13) is fixedly installed at the end of the slide plate (11) away from the spring (12). The gasket (6) is fixedly connected to the clamp (13).
3. The rapid cleaning device for PVD coating according to claim 2, characterized in that: A triangular guide plate (14) is fixedly installed on the top of the clamping plate (13). Several guide posts (15) are rotatably connected to the inclined surface of the guide plate (14). Both the guide plate (14) and the guide posts (15) are made of flexible material.
4. The rapid cleaning device for PVD coating according to claim 1, characterized in that: An air pump (16) is provided on one side of the ultrasonic cleaner (1). A hollow fixed tube (17) is fixedly installed on the top of the ultrasonic cleaner (1). Several air guide tubes (18) connected to the inside are fixedly installed on the surface of the fixed tube (17). The end of the air guide tube (18) away from the fixed tube (17) is connected to the air pump (16). Several air outlet holes (19) connected to the inside are opened on the surface of the fixed tube (17).
5. A rapid cleaning device for PVD coating according to claim 4, characterized in that: A filter screen (20) is fixedly installed inside the air outlet (19) of the fixed tube (17). A swing rod (21) is rotatably connected inside the fixed tube (17) via a torsion spring. A swing ball (22) is fixedly installed on the surface of the swing rod (21).
6. A rapid cleaning device for PVD coating according to claim 5, characterized in that: The fixed tube (17) has two symmetrically arranged guide plates (23) fixedly installed inside. The guide plates (23) are arc-shaped, and one end of the guide plate (23) abuts against the air guide tube (18).