Auxiliary calibration device for plasma spray gun

Abstract

The utility model discloses an auxiliary calibration device for a plasma spray gun, which relates to the technical field of plasma spray guns and comprises a protective shell and a mounting box, the mounting box is fixedly mounted on the upper end face of the protective shell, a notch is formed in the upper end face of the protective shell, and a servo motor is fixedly mounted on the inner wall of the mounting box. The utility model has the advantages that the bolt penetrates through the mounting hole to fix the U-shaped frame on equipment or a wall, so that the front end of the protective shell faces a product to be jetted, then the rotary handle is rotated, the rotary handle drives the front end of the protective shell to swing up and down through the rotary shaft, the angle of the protective shell is adjusted, and the calibration is completed; and then the servo motor drives the transmission gear to rotate anticlockwise through the output end, so that the toothed plate drives the plasma spray gun to move in the direction deviating from the packaging plate, and a spray head at the front end of the plasma spray gun stretches to the outside after abutting against the packaging plate so as to start spraying the product.

Description

Technical Field

[0001] This utility model relates to the field of plasma spray gun technology, specifically to an auxiliary calibration device for plasma spray guns. Background Technology

[0002] Plasma spraying equipment can complete the preparation of coatings with various functions. The plasma spraying equipment consists of multiple systems, and the plasma spray gun is a very critical component of the equipment. The plasma spray gun consists of two parts: the spray gun electrode and the nozzle. The electrode should be located in the center of the nozzle to ensure that a uniform plasma arc is generated under the action of high-frequency current. However, due to objective reasons such as electrode manufacturing and precision, as well as installation and operation reasons, it is difficult to ensure that the electrode is located in the center of the nozzle, resulting in errors in the coaxiality of the electrode and the nozzle. Therefore, it is necessary to adjust the spray angle of the spray gun for calibration. In addition, the spray gun is always exposed to the outside world, and the electrode at the front end of the spray gun is easily damaged by impact when not in use.

[0003] To address this, we propose a plasma spray gun auxiliary calibration device. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary calibration device for plasma spray guns.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plasma spray gun auxiliary calibration device, comprising a protective shell and a mounting box. The mounting box is fixedly installed on the upper end face of the protective shell. A slot is formed on the upper end face of the protective shell. A servo motor is fixedly installed on the inner wall of the mounting box. A transmission gear is fixedly installed on the output end of the servo motor. The lower end of the transmission gear passes through the slot and meshes with a toothed plate. A plasma spray gun is fixedly installed on the lower end of the toothed plate. The lower end of the plasma spray gun is slidably installed on the inner wall of the protective shell via a limiting slide bar. Side plates are symmetrically fixedly installed on both sides of the plasma spray gun. A first connecting shaft is rotatably installed on the side plate. A push plate is rotatably installed on the first connecting shaft. The protective shell has heat dissipation vents on both sides. A sealing plate is rotatably mounted on the inner wall of the heat dissipation vent via a No. 3 connecting shaft. The other end of the sealing plate is rotatably connected to the end of the push plate via a No. 2 connecting shaft. The servo motor in the mounting box drives the transmission gear to rotate counterclockwise through the output end, causing the gear plate to move the plasma spray gun away from the encapsulation plate. This allows the nozzle at the front end of the plasma spray gun to push the encapsulation plate open and extend to the outside, starting to spray the product. As the plasma spray gun and nozzle move away from the encapsulation plate, the side plates on both sides of the plasma spray gun push the sealing plate outward through the push plate, causing the sealing plate inside the heat dissipation vent to open via the No. 3 connecting shaft. This facilitates timely heat dissipation during the operation of the plasma spray gun and prevents the plasma spray gun from being damaged due to high temperature.

[0006] As a further embodiment of this utility model: the front and rear ends of the protective shell are respectively provided with a sealing plate and a magnetic dustproof plate. The sealing plate is fixedly installed at one end of the protective shell, and the magnetic dustproof plate is rotatably installed at the other end of the protective shell through a dustproof rotating shaft.

[0007] As a further embodiment of this utility model: two rotating shafts are symmetrically fixedly installed on both sides of the protective shell. A U-shaped frame is mounted on both rotating shafts. One end of the rotating shaft opposite to the protective shell passes through the side wall of the U-shaped frame and is fixedly mounted with a rotating handle. The other end of the rotating shaft opposite to the protective shell passes through the side wall of the U-shaped frame and is fixedly mounted with a threaded rod. A locking nut is threaded onto the threaded rod. The U-shaped frame is fixed to the equipment or wall by bolts passing through the mounting holes, so that the front end of the protective shell faces the product to be sprayed. Then, the rotating handle is rotated, and the rotating handle drives the front end of the protective shell to swing up and down through the rotating shaft to adjust the angle of the protective shell and complete the calibration.

[0008] As a further embodiment of this utility model: a connector is fixedly inserted at the center of the encapsulation plate.

[0009] As a further embodiment of this utility model, the bottom of the U-shaped frame is provided with mounting holes.

[0010] As a further embodiment of this utility model: a nozzle is fixedly installed at the front end of the plasma spray gun.

[0011] Compared with the prior art, the beneficial effects of this utility model by adopting the above technical solution are as follows:

[0012] 1. This utility model uses bolts to pass through the mounting holes to fix the U-shaped frame to the equipment or wall, so that the front end of the protective shell faces the product to be sprayed. Then, the rotating handle is turned, and the rotating handle drives the front end of the protective shell to swing up and down through the rotating shaft to adjust the angle of the protective shell. After calibration, the servo motor in the mounting box drives the transmission gear to rotate counterclockwise through the output end, so that the toothed plate drives the plasma spray gun to move away from the encapsulation plate. This causes the nozzle at the front end of the plasma spray gun to push the encapsulation plate open and extend to the outside, and begin spraying the product. As the plasma spray gun and nozzle move away from the encapsulation plate, the side plates on both sides of the plasma spray gun push the sealing plate outward through the push plate, so that the sealing plate in the heat dissipation port is opened through the No. 3 connecting shaft, which facilitates timely heat dissipation of the plasma spray gun during operation and avoids damage to the plasma spray gun due to high temperature.

[0013] 2. This utility model uses the output end of a servo motor to drive the transmission gear to rotate clockwise in the opposite direction, retracting the nozzle at the front end of the plasma spray gun into the protective shell. Under the magnetic force of the magnetic dustproof plate, it flips again to close the front port of the protective shell, preventing the nozzle from being damaged by collision when not in use. At the same time, the plasma spray gun uses a push plate to drive the sealing plate to close the heat dissipation vent, preventing dust from entering the protective shell.

[0014] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a frontal perspective view of the protective shell and mounting box in this utility model;

[0017] Figure 3 This is a side perspective structural diagram of the protective shell and mounting box in this utility model;

[0018] Figure 4 This is a side view of the protective shell and mounting box in this utility model;

[0019] Figure 5 This is a top cross-sectional view of the protective shell in this utility model;

[0020] Figure 6 for Figure 5 A top-down enlarged view of the middle section of the protective shell;

[0021] Figure 7 This is a front sectional view of the protective shell and mounting box in this utility model.

[0022] In the diagram: 1. Encapsulation plate; 2. Connector; 3. Sealing plate; 4. Transmission gear; 5. Mounting box; 6. Tooth plate; 7. Groove; 8. Protective shell; 9. Dustproof rotating shaft; 10. Magnetic dustproof plate; 11. Side plate; 12. No. 1 connecting shaft; 13. Push plate; 14. No. 2 connecting shaft; 15. No. 3 connecting shaft; 16. Plasma spray gun; 17. Nozzle; 18. Mounting hole; 19. Rotating handle; 20. U-shaped frame; 21. Threaded rod; 22. Locking nut; 23. Limiting slide bar. Detailed Implementation

[0023] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.

[0024] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] Example 1, please refer to the appendix. Figure 1 -Appendix Figure 7 A plasma spray gun auxiliary calibration device includes a protective shell 8 and a mounting box 5. The mounting box 5 is fixedly installed on the upper end face of the protective shell 8. A slot 7 is opened on the upper end face of the protective shell 8. A servo motor is fixedly installed on the inner wall of the mounting box 5. A transmission gear 4 is fixedly installed on the output end of the servo motor. The lower end of the transmission gear 4 passes through the slot 7 and meshes with a toothed plate 6. A plasma spray gun 16 is fixedly installed on the lower end of the toothed plate 6. A nozzle 17 is fixedly installed on the front end of the plasma spray gun 16. The lower end of the plasma spray gun 16 is slidably installed on the inner wall of the protective shell 8 through a limiting slide bar 23. Side plates 11 are symmetrically fixedly installed on both sides of the plasma spray gun 16. A first connecting shaft 12 is rotatably installed on the side plate 11. A push plate 13 is rotatably installed on the first connecting shaft 12. Heat dissipation vents are opened on both sides of the protective shell 8. A sealing plate 3 is rotatably installed on the inner wall of the heat dissipation vent through a third connecting shaft 15. The other end of the sealing plate 3 is rotatably connected to the end of the push plate 13 through a second connecting shaft 14.

[0026] As the plasma spray gun 16 and nozzle 17 move away from the encapsulation plate 1, the side plates 11 on both sides of the plasma spray gun 16 push the sealing plate 3 outward through the push plate 13, so that the sealing plate 3 inside the heat dissipation port is opened through the No. 3 connecting shaft 15, which facilitates timely heat dissipation when the plasma spray gun 16 is working and avoids damage to the plasma spray gun 16 due to high temperature. After spraying is completed, the servo motor drives the transmission gear 4 to rotate clockwise in the opposite direction through the output end, which retracts the nozzle 17 at the front end of the plasma spray gun 16 into the protective shell 8. Under the action of the magnetic force, the magnetic dustproof plate 10 flips again to close the front port of the protective shell 8, which prevents the nozzle 17 from being damaged by collision when not in use. At the same time, the plasma spray gun 16 drives the sealing plate 3 through the push plate 13 to close the heat dissipation port and prevent dust from entering the protective shell 8.

[0027] Example 2, please refer to the appendix. Figure 1 -Appendix Figure 7The protective shell 8 has a sealing plate 1 and a magnetic dustproof plate 10 at its front and rear ends, respectively. The sealing plate 1 is fixedly installed at one end of the protective shell 8, and the magnetic dustproof plate 10 is rotatably installed at the other end of the protective shell 8 via a dustproof rotating shaft 9. Two rotating shafts are symmetrically fixedly installed on both sides of the protective shell 8. A U-shaped frame 20 is mounted on the two rotating shafts. One of the rotating shafts, at the end opposite to the protective shell 8, passes through the side wall of the U-shaped frame 20 and is fixedly installed with a rotating handle 19. The other rotating shaft, at the end opposite to the protective shell 8, passes through the side wall of the U-shaped frame 20 and is fixedly installed with a threaded rod 21. A locking nut 22 is threaded onto the threaded rod 21. A connector 2 is fixedly inserted at the center of the sealing plate 1 to facilitate the plasma spray gun 16 to connect with the equipment via a transmission line. The U-shaped frame 20 has a mounting hole 18 at its bottom for easy installation and carrying of the plasma spray gun 16. When using the spray gun, first, bolts are passed through the mounting hole 18 to fix the U-shaped frame 20 to the equipment or wall, ensuring the front end of the protective shell 8 faces the product to be sprayed. Then, the rotating handle 19 is turned, causing the front end of the protective shell 8 to swing up and down via a rotating shaft to adjust the angle of the protective shell 8. Finally, the servo motor inside the mounting box 5 drives the transmission gear 4 to rotate counterclockwise via its output end, causing the toothed plate 6 to move the plasma spray gun 16 away from the encapsulation plate 1. The nozzle 17 at the front end of the plasma spray gun 16 pushes open the encapsulation plate 1 and extends to the outside, beginning to spray the product.

[0028] Working principle:

[0029] First, when the spray gun is needed, the U-shaped frame 20 is fixed to the equipment or wall by passing bolts through the mounting hole 18, so that the front end of the protective shell 8 faces the product to be sprayed. Then, the rotating handle 19 is turned. The rotating handle 19 drives the front end of the protective shell 8 to swing up and down through the rotating shaft to adjust the angle of the protective shell 8. Finally, the servo motor in the mounting box 5 drives the transmission gear 4 to rotate counterclockwise through the output end, so that the toothed plate 6 drives the plasma spray gun 16 to move away from the encapsulation plate 1. The nozzle 17 at the front end of the plasma spray gun 16 pushes the encapsulation plate 1 open and extends to the outside to start spraying the product. As the plasma spray gun 16 and the nozzle 17 move away from the encapsulation plate 1, the side plates 11 on both sides of the plasma spray gun 16 push the sealing plate 3 to flip outward through the push plate 13, so that the sealing plate 3 in the heat dissipation port is opened through the No. 3 connecting shaft 15, so that the plasma spray gun 16 can dissipate heat in time when working, and avoid the plasma spray gun 16 being damaged due to high temperature.

[0030] After spraying is completed, the servo motor drives the transmission gear 4 to rotate clockwise in the opposite direction through the output end, retracting the nozzle 17 at the front end of the plasma spray gun 16 into the protective shell 8. Under the action of the magnetic force of the magnetic dustproof plate 10, it flips again to close the front port of the protective shell 8, preventing the nozzle 17 from being damaged by collision when not in use. At the same time, the plasma spray gun 16 drives the sealing plate 3 through the push plate 13 to close the heat dissipation port, preventing dust from entering the protective shell 8.

[0031] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0034] For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.

Claims

1. A plasma spray gun auxiliary calibration device, comprising a protective shell (8) and a mounting box (5), characterized in that: The mounting box (5) is fixedly mounted on the upper end face of the protective shell (8). The upper end face of the protective shell (8) has a slot (7). A servo motor is fixedly mounted on the inner wall of the mounting box (5). A transmission gear (4) is fixedly mounted on the output end of the servo motor. The lower end of the transmission gear (4) passes through the slot (7) and meshes with a toothed plate (6). A plasma spray gun (16) is fixedly mounted on the lower end of the toothed plate (6). The lower end of the plasma spray gun (16) is slidably mounted on the limit slide (23). On the inner wall of the protective shell (8), side plates (11) are symmetrically fixed on both sides of the plasma spray gun (16). A first connecting shaft (12) is rotatably installed on the side plate (11). A push plate (13) is rotatably installed on the first connecting shaft (12). Heat dissipation vents are opened on both sides of the protective shell (8). A sealing plate (3) is rotatably installed on the inner wall of the heat dissipation vent through a third connecting shaft (15). The other end of the sealing plate (3) is rotatably connected to the end of the push plate (13) through a second connecting shaft (14).

2. The plasma spray gun auxiliary calibration device according to claim 1, characterized in that: The protective shell (8) is provided with a sealing plate (1) and a magnetic dustproof plate (10) at its front and rear ends respectively. The sealing plate (1) is fixedly installed at one end of the protective shell (8), and the magnetic dustproof plate (10) is rotatably installed at the other end of the protective shell (8) through a dustproof rotating shaft (9).

3. The plasma spray gun auxiliary calibration device according to claim 1, characterized in that: Two rotating shafts are symmetrically fixedly installed on both sides of the protective shell (8). The two rotating shafts are rotatably mounted on a U-shaped frame (20). One end of the rotating shaft opposite to the protective shell (8) passes through the side wall of the U-shaped frame (20) and is fixedly mounted with a rotating handle (19). The other end of the rotating shaft opposite to the protective shell (8) passes through the side wall of the U-shaped frame (20) and is fixedly mounted with a threaded rod (21). A locking nut (22) is threaded onto the threaded rod (21).

4. The plasma spray gun auxiliary calibration device according to claim 2, characterized in that: A connector (2) is fixedly inserted at the center of the encapsulation plate (1).

5. The plasma spray gun auxiliary calibration device according to claim 3, characterized in that: The bottom of the U-shaped frame (20) is provided with mounting holes (18).

6. The plasma spray gun auxiliary calibration device according to claim 1, characterized in that: The front end of the plasma spray gun (16) is fixedly equipped with a nozzle (17).

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