PVD (Physical Vapor Deposition) ultrasonic fixing device

Abstract

The utility model discloses a PVD (Physical Vapor Deposition) ultrasonic fixing device, which relates to the technical field of PVD processing, and comprises an outer shell, a built-in pipe is fixedly connected to the middle position of the inner side wall of the outer shell, an electric push cylinder is mounted in the middle position of the upper side wall of the outer shell, and a connecting push rod is in limited sliding connection with the interior of the built-in pipe. The movable end of the electric push cylinder is fixedly connected with the top of the connecting push rod, and a plurality of fixed clamping jaws distributed in a circumferential array mode are rotationally connected to the outer side wall of the outer shell. The device is used for fixing a workpiece needing ultrasonic cleaning, the coating adhesion strength in the subsequent PVD process can be improved, the adsorption and clamping modes are alternately executed, the fixed clamping jaw originally clamped on the outer side of the workpiece is loosened, and the workpiece is fixed through the fixed clamping jaw. Therefore, bubbles generated by ultrasonic waves can be attached to the original position in contact with the fixed clamping jaw, and the comprehensiveness of ultrasonic cleaning is further provided.

Description

Technical Field

[0001] This utility model relates to the field of PVD processing technology, and in particular to a PVD ultrasonic fixation device. Background Technology

[0002] In the field of physical vapor deposition (PVD) technology, the cleanliness of the workpiece surface plays a decisive role in the coating quality. Ultrasonic cleaning technology, with its unique cavitation effect, can effectively remove contaminants such as oil, particulate impurities, and oxides from the workpiece surface. The principle is that when ultrasonic waves propagate in the cleaning fluid, they generate a large number of tiny bubbles. These bubbles rapidly grow and suddenly collapse under the influence of the sound waves, and the instantaneously generated high-temperature, high-pressure shock waves can peel off dirt from the workpiece surface. Simultaneously, the vibration of the sound waves accelerates the flow of the cleaning fluid, making the cleaning more uniform, thereby significantly improving the cleanliness of the workpiece surface and providing a good foundation for subsequent coating processes.

[0003] However, existing ultrasonic cleaning equipment has significant drawbacks in practical applications. On the one hand, if the workpiece is placed directly in the ultrasonic cleaning tank, it will sink to the bottom due to gravity. This results in poor flow of the cleaning fluid and weakened cavitation effect at the contact point between the workpiece and the tank bottom, significantly reducing the cleaning effect. On the other hand, some equipment uses clamping devices to fix the workpiece in the middle of the tank. While this can improve the overall cleaning effect, the clamping area will create a cleaning blind spot due to close contact with the clamp. To ensure thorough cleaning, the workpiece must be frequently rotated and the clamping surface changed. This not only increases the complexity of operation and prolongs the cleaning time, but may also cause surface damage to the workpiece due to repeated clamping, affecting the final coating quality and workpiece performance.

[0004] Based on the above viewpoints, there is an urgent need for a PVD ultrasonic fixation device. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a PVD ultrasonic fixing device. This PVD ultrasonic fixing device uses the device to fix the workpiece that needs ultrasonic cleaning, which can improve the coating adhesion strength during subsequent PVD processes. By alternately performing adsorption and clamping, the fixing claws that were originally clamped on the outside of the workpiece are released, allowing the air bubbles generated by the ultrasonic waves to adhere to the positions that were originally in contact with the fixing claws, thereby providing comprehensive ultrasonic cleaning.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A PVD ultrasonic fixation device includes an outer shell. An internal tube is fixedly connected to the middle of the inner side wall of the outer shell. An electric cylinder is installed at the middle of the upper side wall of the outer shell. A connecting push rod is slidably connected to the inside of the internal tube. The movable end of the electric cylinder is fixedly connected to the top of the connecting push rod. A plurality of fixed claws arranged in a circular array are rotatably connected to the outer side wall of the outer shell. A plurality of connecting plates matching the number of fixed claws are fixedly connected to the outer side wall of the connecting push rod. The connecting plates are used to drive the fixed claws to rotate. A connecting tube is fixedly connected to the bottom of the connecting push rod. A spring tube is fixedly connected to the bottom of the connecting tube. A negative pressure suction rod is connected to the bottom of the spring tube through a spring.

[0008] Preferably, the fixed gripper includes a gripper rotating rod, the bottom end of which is connected to a torsion spring connecting block via a torsion spring, a flexible pad is fixedly connected to the inner side wall of the torsion spring connecting block, and a clamping piece is fixedly connected to the other end of the flexible pad.

[0009] Preferably, the surface of the connecting plate is provided with a groove, the front end of the gripper rotating rod is slidably connected to the groove, and the middle position of the gripper rotating rod is rotatably connected to the outer wall of the outer shell.

[0010] Preferably, a sealing rod is fixedly connected to the bottom of the inner side wall of the outer shell, and the lower end of the sealing rod is slidably connected to the inside of the negative pressure suction rod.

[0011] Preferably, a negative pressure groove is provided on one side wall of the negative pressure suction rod, and the flow channel between the negative pressure groove and the negative pressure suction rod is in circulation. A negative pressure connector is fixedly connected to the outer side wall of the negative pressure suction rod, and the negative pressure connector is in communication with the negative pressure groove.

[0012] Preferably, a suction head is fixedly connected to the bottom of the negative pressure suction rod and to the outside of the flow in the middle of the negative pressure suction rod.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, the device is used to fix the workpiece that needs ultrasonic cleaning, which can improve the coating adhesion strength during the subsequent PVD process. By alternately performing adsorption and clamping, the fixing claws that were originally clamped on the outside of the workpiece are released, so that the bubbles generated by the ultrasonic waves can adhere to the position that was originally in contact with the fixing claws, thereby providing comprehensive ultrasonic cleaning.

[0015] In this invention, when the fixed gripper holds the workpiece, the gripper first moves closer to the workpiece as the gripper rotating rod moves, causing the gripper to be squeezed and tend to fit against the workpiece. At this time, the torsion spring connecting block rotates to a state parallel to the outer surface of the workpiece until the gripper and the outer surface of the workpiece are completely fitted. The flexible pad between the gripper and the torsion spring connecting block is made of flexible material to prevent the vibration generated by the workpiece during the cleaning process from being transmitted to the equipment, thereby improving the service life of the equipment. Attached Figure Description

[0016] Figure 1 This is an overall diagram of a PVD ultrasonic fixation device proposed in this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a transverse isometric side sectional view of a PVD ultrasonic fixation device proposed in this utility model;

[0019] Figure 4 This is a longitudinal sectional view of a PVD ultrasonic fixation device proposed in this utility model.

[0020] Legend:

[0021] 1. Outer shell; 2. Electric push cylinder; 3. Internal tube; 4. Connecting push rod; 5. Fixing gripper; 6. Connecting plate; 7. Connecting tube; 8. Sealing rod; 9. Spring tube; 10. Negative pressure suction rod; 11. Suction head; 12. Negative pressure groove; 13. Negative pressure connector;

[0022] 51. Gripper rotating rod; 52. Torsion spring connecting block; 53. Flexible gasket; 54. Clamping plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Refer to Figures 1-4According to one embodiment of this utility model, a PVD ultrasonic fixation device includes an outer shell 1. An internal tube 3 is fixedly connected to the middle of the inner side wall of the outer shell 1. An electric push cylinder 2 is installed at the middle of the upper side wall of the outer shell 1. A connecting push rod 4 is slidably connected to the inside of the internal tube 3. The movable end of the electric push cylinder 2 is fixedly connected to the top of the connecting push rod 4. A plurality of fixed claws 5 arranged in a circular array are rotatably connected to the outer side wall of the outer shell 1. A plurality of connecting plates 6 matching the number of fixed claws 5 are fixedly connected to the outer side wall of the connecting push rod 4. The connecting plates 6 are used to drive the fixed claws 5 to rotate. A connecting tube 7 is fixedly connected to the bottom of the connecting push rod 4. A spring tube 9 is fixedly connected to the bottom of the connecting tube 7. A negative pressure suction rod 10 is connected to the bottom of the spring tube 9 through a spring. Using this device to fix the workpiece that needs ultrasonic cleaning can improve the adhesion strength of the coating during the subsequent PVD process. During ultrasonic cleaning, the electric push cylinder 2 drives the connecting push rod 4 to move upward, so that the connecting plate 6 drives the fixing claw 5 to rotate and clamp the workpiece inside. Then, the device and the workpiece held inside are immersed in the ultrasonic cleaning equipment. After ultrasonic cleaning for a period of time, the electric push cylinder 2 drives the connecting push rod 4 to move downward. At this time, the descending connecting tube 7 drives the spring tube 9 and the negative pressure suction rod 10 to contact the upper surface of the workpiece. Then, the negative pressure is used to adsorb the workpiece onto the negative pressure suction rod 10. At the same time, as the connecting push rod 4 moves downward, the fixing claw 5 that was originally clamped on the outside of the workpiece is released, so that the bubbles generated by the ultrasonic waves can adhere to the position that was originally in contact with the fixing claw 5, thereby providing comprehensive ultrasonic cleaning.

[0025] The fixed gripper 5 includes a gripper rotating rod 51. The bottom end of the gripper rotating rod 51 is connected to a torsion spring connecting block 52 via a torsion spring. A flexible pad 53 is fixedly connected to the inner wall of the torsion spring connecting block 52, and a clamping piece 54 is fixedly connected to the other end of the flexible pad 53. When the fixed gripper 5 holds a workpiece, the gripper rotating rod 51 first moves towards the workpiece, causing the clamping piece 54 to be compressed and tend to fit against the workpiece. At this time, the torsion spring connecting block 52 rotates to a position parallel to the outer surface of the workpiece until the clamping piece 54 is completely in contact with the outer surface of the workpiece. The flexible pad 53, located between the clamping piece 54 and the torsion spring connecting block 52, is made of a flexible material to prevent vibrations generated by the workpiece during cleaning from being transmitted to the equipment, thus improving the service life of the equipment.

[0026] The surface of the connecting plate 6 is provided with a groove, and the front end of the gripper rotating rod 51 is slidably connected to this groove. The middle position of the gripper rotating rod 51 is rotatably connected to the outer wall of the outer shell 1. When the connecting push rod 4 descends, the connecting plate 6 pushes the upper end of the gripper rotating rod 51 to rotate. At the same time, the upper end of the gripper rotating rod 51 slides along the groove of the connecting plate 6, so that the lower ends of the gripper rotating rod 51 move away from each other, thus releasing the gripper 5. A sealing rod 8 is fixedly connected to the bottom of the inner wall of the outer shell 1, and the lower end of the sealing rod 8 is slidably connected to the inside of the negative pressure suction rod 10. When the connecting push rod 4 is driven to move downward, the negative pressure suction rod 10 moves away from the sealing rod 8. At this time, the sealing rod 8, which was originally blocking the middle flow channel of the negative pressure suction rod 10, leaves the flow channel, thereby causing negative pressure to act in the flow channel and generating suction.

[0027] A negative pressure groove 12 is formed on one side wall of the negative pressure suction rod 10, and the flow channel between the negative pressure groove 12 and the negative pressure suction rod 10 is open. A negative pressure connector 13 is fixedly connected to the outer side wall of the negative pressure suction rod 10, and the negative pressure connector 13 is connected to the negative pressure groove 12. The negative pressure is open to external negative pressure equipment through the negative pressure connector 13. When the sealing rod 8 moves away from the middle flow channel of the negative pressure suction rod 10, the negative pressure generated by the external negative pressure equipment will act on the middle flow channel of the negative pressure suction rod 10 through the negative pressure groove 12. A suction head 11 is fixedly connected to the bottom of the negative pressure suction rod 10 and located in the middle of the flow channel. The suction head 11 adsorbs the workpiece.

[0028] Working Principle: This device secures the workpiece requiring ultrasonic cleaning, improving the adhesion strength of the coating during subsequent PVD processes. During ultrasonic cleaning, the electric pusher 2 drives the connecting push rod 4 upward, causing the connecting plate 6 to rotate the fixing jaw 5. As the jaw rotation rod 51 moves closer to the workpiece, the clamping plate 54 is compressed and tends to fit against the workpiece. At this time, the torsion spring connecting block 52 rotates to a state parallel to the outer surface of the workpiece until the clamping plate 54 is completely in contact with the outer surface of the workpiece. The flexible gasket 53 between the clamping plate 54 and the torsion spring connecting block 52 is made of flexible material to prevent vibrations generated by the workpiece during cleaning from being transmitted to the device, thus extending the service life of the equipment. Subsequently, the device and the clamped workpiece are immersed in the ultrasonic cleaning equipment. After ultrasonic cleaning for a period of time, the electric pusher cylinder 2 drives the connecting push rod 4 to move downward. At this time, the descending connecting pipe 7 drives the spring tube 9 and the negative pressure suction rod 10 to contact the upper surface of the workpiece. When the connecting push rod 4 is driven to move downward, the negative pressure suction rod 10 moves away from the sealing rod 8. At this time, the sealing rod 8, which was originally blocking the middle flow channel of the negative pressure suction rod 10, leaves the flow channel, so that the negative pressure acts in the flow channel and generates suction. When the connecting push rod 4 descends, the connecting plate 6 pushes the upper end of the gripper rotating rod 51 to rotate. At the same time, the upper end of the gripper rotating rod 51 slides along the groove of the connecting plate 6, so that the lower ends of the gripper rotating rod 51 move away from each other to complete the loosening of the fixed gripper 5. This allows the bubbles generated by the ultrasonic waves to adhere to the position that was originally in contact with the fixed gripper 5, thus providing comprehensive ultrasonic cleaning.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A PVD ultrasonic fixation device, characterized by: The device includes an outer shell (1), an inner tube (3) fixedly connected to the middle of the inner side wall of the outer shell (1), an electric push cylinder (2) installed at the middle of the upper side wall of the outer shell (1), a connecting push rod (4) slidably connected to the inner limit of the inner tube (3), the movable end of the electric push cylinder (2) fixedly connected to the top of the connecting push rod (4), a number of fixed claws (5) arranged in a circular array rotatably connected to the outer side wall of the outer shell (1), a number of connecting plates (6) matching the number of fixed claws (5) fixedly connected to the outer side wall of the connecting push rod (4), the connecting plates (6) being used to drive the fixed claws (5) to rotate, a connecting tube (7) fixedly connected to the bottom of the connecting push rod (4), a spring tube (9) fixedly connected to the bottom of the connecting tube (7), and a negative pressure suction rod (10) connected to the bottom of the spring tube (9) via a spring.

2. A PVD ultrasound fixation device according to claim 1, wherein: The fixed gripper (5) includes a gripper rotating rod (51), the bottom end of which is connected to a torsion spring connecting block (52) via a torsion spring, a flexible pad (53) is fixedly connected to the inner side wall of the torsion spring connecting block (52), and a clamping piece (54) is fixedly connected to the other end of the flexible pad (53).

3. A PVD ultrasound fixation device according to claim 2, wherein: The surface of the connecting plate (6) is provided with a groove, the front end of the gripper rotating rod (51) is limited and slidably connected to the groove, and the middle position of the gripper rotating rod (51) is rotatably connected to the outer wall of the outer shell (1).

4. The PVD ultrasonic fixation device of claim 3, wherein: A sealing rod (8) is fixedly connected to the bottom of the inner wall of the outer shell (1), and the lower end of the sealing rod (8) is slidably connected to the inside of the negative pressure suction rod (10).

5. The PVD ultrasonic fixation device of claim 1, wherein: A negative pressure groove (12) is provided on one side wall of the negative pressure suction rod (10). The flow channel between the negative pressure groove (12) and the negative pressure suction rod (10) is open. A negative pressure connector (13) is fixedly connected to the outer side wall of the negative pressure suction rod (10) and the negative pressure connector (13) is connected to the negative pressure groove (12).

6. A PVD ultrasound fixation device according to claim 5, wherein: A suction head (11) is fixedly connected to the bottom of the negative pressure suction rod (10) and to the outside of the flow in the middle of the negative pressure suction rod (10).

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