Protective tool for thermal spraying

Abstract

The utility model relates to the technical field of protection tools, and discloses a protection tool for thermal spraying, which comprises a spraying muzzle, the inner wall of the spraying muzzle is provided with a guide groove, the outer wall of the spraying muzzle is provided with a protection sleeve, the outer wall of the protection sleeve is fixedly provided with a sliding block, the top of the sliding block is provided with a connecting assembly, and the connecting assembly is connected with the guide groove. A first sliding groove and a straight opening groove are formed in the outer wall of the protective sleeve, a connecting column and a rotating disc are arranged on the outer wall of the protective sleeve, a first arc-shaped groove is formed in the outer wall of the rotating disc, and a protective shell is fixedly installed at the top of the connecting column. The adjustable protection device is formed by six straight opening grooves distributed in a circular array, a connecting column, an arc-shaped groove I and a fan-shaped protection shell, so that an operator can drive the protection shell to synchronously expand or contract outwards through sliding fit of the arc-shaped groove I and the connecting column only by rotating a turntable, and then the size and the shape of a protection area are adjusted; therefore, different coverage isolation non-spraying areas can be better adapted.

Description

A protective fixture for thermal spraying Technical Field

[0001] This utility model relates to the field of protective tooling technology, specifically a protective tooling for thermal spraying. Background Technology

[0002] Thermal spraying refers to heating and melting coating materials, atomizing them into extremely fine particles with a high-speed airflow, and spraying them onto the surface of the workpiece at a very high speed to form a coating. Depending on the needs, different coating materials can be selected to obtain one or more properties such as wear resistance, corrosion resistance, oxidation resistance, and heat resistance. In the process of thermal spraying, a protective tooling for thermal spraying is often required.

[0003] Existing thermal spraying protective fixtures have limited protection range adjustment capabilities. Most fixtures can only provide a fixed protection area and cannot flexibly adjust the protection area according to actual spraying needs. When faced with complex spraying shapes or large-area spraying operations, it is difficult to cover and isolate non-spraying areas, which increases the risk of paint splashing and contamination, thereby reducing the efficiency of the protective fixtures. Therefore, we have introduced a protective fixture for thermal spraying. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a protective fixture for thermal spraying, which has the advantages of flexible adjustment of protective functions and quick disassembly and installation, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a protective fixture for thermal spraying, including a spray gun nozzle, a guide groove on the inner wall of the spray gun nozzle, a protective sleeve on the outer wall of the spray gun nozzle, a slider fixedly mounted on the outer wall of the protective sleeve, a connecting component on the top of the slider, a sliding groove and a straight groove on the outer wall of the protective sleeve, a connecting post and a turntable on the outer wall of the protective sleeve, an arc groove on the outer wall of the turntable, and a protective shell fixedly mounted on the top of the connecting post.

[0006] As a preferred technical solution of this utility model: the connecting component includes a circular groove 1, and the inner wall of the guide groove is respectively provided with an arc-shaped groove 2, a sliding groove 2, a sliding groove 3 and a circular groove 2. The inner cavity of the circular groove 1 is respectively provided with a convex block and a spring 2. The outer wall of the convex block is provided with a slot. The inner wall of the sliding groove 2 is slidably connected with a pin. The top of the pin is fixedly fitted with a sliding plate. The outer wall of the sliding plate is fixedly installed with a pull rod. The outer wall of the pull rod is provided with a spring 1.

[0007] As a preferred technical solution of this utility model: the second spring is located at the bottom of the convex block, and one end of the second spring overlaps with the convex block, and the other end overlaps with the inner wall of the circular groove. The outer wall of the convex block is slidably fitted to the inner wall of the circular groove. The shape of the convex block is adapted to the shape of the arc groove. The outer wall of the pin is slidably fitted to the top of the convex block. The shape of the pin is adapted to the shape of the slot. The outer wall of the slide plate is slidably fitted to the inner wall of the slide groove. The first spring is located in the inner cavity of the circular groove. One end overlaps with the slide plate, and the other end overlaps with the inner wall of the circular groove.

[0008] As a preferred technical solution of this utility model: the outer wall of the slider is adapted to the inner wall of the guide groove, and the inner wall of the turntable is slidably fitted to the inner wall of the slide groove.

[0009] As a preferred technical solution of this utility model: the straight groove, the connecting column, the arc groove and the protective shell are regarded as a group of movable components, and the number of such movable components is six, all arranged in a circular array on the outer wall of the protective sleeve and the turntable.

[0010] As a preferred technical solution of this utility model: the inner walls of the six arc-shaped grooves are slidably fitted to the outer walls of the connecting columns, the outer walls of the connecting columns are slidably fitted to the inner walls of the straight grooves, and the protective shell is fan-shaped and slidably fitted to the outer walls of the turntable.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This thermal spraying protective fixture consists of six straight slots arranged in a circular array, a connecting column, an arc-shaped slot, and a fan-shaped protective shell, forming an adjustable protective device. The operator only needs to rotate the turntable to drive the protective shell to expand or contract synchronously outward through the sliding cooperation between the arc-shaped slot and the connecting column, thereby adjusting the size and shape of the protected area to better adapt to different non-sprayed areas that need to be covered and isolated.

[0013] 2. This protective fixture for thermal spraying uses a convex block, a pin, and springs one and two in a coordinated manner to push the protective sleeve. The slider then slides along the guide groove to complete the pre-positioning. The pin and the convex block are quickly engaged by the rebound of springs one and two. During disassembly, pulling the lever releases the lock, thus saving a lot of installation and debugging time and effectively improving work efficiency. It is especially suitable for spraying operations that require rapid switching between multiple scenarios. Attached Figure Description

[0014] Figure 1 is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 is a cross-sectional structural diagram of this utility model;

[0016] Figure 3 is a schematic diagram of the installation structure of this utility model;

[0017] Figure 4 is a schematic diagram of the connecting component structure of this utility model;

[0018] Figure 5 is a schematic diagram of the protective structure of this utility model;

[0019] Figure 6 is an enlarged structural schematic diagram of point A in Figure 4 of this utility model.

[0020] In the diagram: 1. Spray gun nozzle; 2. Guide groove; 3. Protective sleeve; 4. Slider; 5. Connecting assembly; 6. Slide 1; 7. Straight groove; 8. Connecting post; 9. Turntable; 10. Arc groove 1; 11. Protective shell;

[0021] 501. Circular groove one; 502. Arc groove two; 503. Slide groove two; 504. Slide groove three; 505. Circular groove two; 506. Convex block; 507. Slot; 508. Pin; 509. Slide plate; 510. Pull rod; 511. Spring one; 512. Spring two. Detailed Implementation

[0022] 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.

[0023] Please refer to Figures 1-6. A protective fixture for thermal spraying includes a spray nozzle 1, a guide groove 2 on the inner wall of the spray nozzle 1, a protective sleeve 3 on the outer wall of the spray nozzle 1, a slider 4 fixedly mounted on the outer wall of the protective sleeve 3, a connecting component 5 on the top of the slider 4, a sliding groove 6 and a straight groove 7 on the outer wall of the protective sleeve 3, a connecting post 8 and a turntable 9 on the outer wall of the protective sleeve 3, an arc groove 10 on the outer wall of the turntable 9, and a protective outer shell 11 fixedly mounted on the top of the connecting post 8.

[0024] In the above structure, by setting the protective sleeve 3, when the spray gun nozzle 1 is in use, the protective sleeve 3 is connected and installed to the spray gun nozzle 1 through the connecting component 5. When the spray gun nozzle 1 is in use, the opening of the protective shell 11 is adjusted by the operating turntable 9. This restricts the spray volume of the spray gun nozzle 1 during the spraying operation, thereby protecting the areas that do not need to be sprayed.

[0025] In a preferred embodiment: the connecting component 5 includes a circular groove 501, and the inner wall of the guide groove 2 is provided with an arc groove 502, a sliding groove 503, a sliding groove 504 and a circular groove 505 respectively. The inner cavity of the circular groove 501 is provided with a convex block 506 and a spring 512 respectively. The outer wall of the convex block 506 is provided with a slot 507. The inner wall of the sliding groove 503 is slidably connected with a pin 508. The top of the pin 508 is fixedly fitted with a sliding plate 509. The outer wall of the sliding plate 509 is fixedly installed with a pull rod 510. The outer wall of the pull rod 510 is provided with a spring 511.

[0026] In a preferred embodiment: Spring 2 512 is located at the bottom of convex block 506, and one end of spring 2 512 overlaps with convex block 506, and the other end overlaps with the inner wall of circular groove 1 501. The outer wall of convex block 506 is slidably fitted to the inner wall of circular groove 1 501. The shape of convex block 506 is adapted to the shape of arc groove 2 502. The outer wall of pin 508 is slidably fitted to the top of convex block 506. The shape of pin 508 is adapted to the shape of slot 507. The outer wall of slide plate 509 is slidably fitted to the inner wall of slide groove 3 504. Spring 1 511 is located in the inner cavity of circular groove 2 505, and one end overlaps with slide plate 509, and the other end overlaps with the inner wall of circular groove 2 505.

[0027] In the above structure, by setting the convex block 506 and the pin 508, when the convex block 506 contacts the inner wall of the guide groove 2, it will be squeezed and slide along the inner wall of the circular groove 1 501. This sliding will cause the spring 2 512 to compress. When the convex block 506 continues to slide to a position corresponding to the arc-shaped groove 2 502, it will be reset by the spring 2 512. When the convex block 506 returns to the inner cavity of the arc-shaped groove 2 502, its top will contact the outer wall of one end of the pin 508, causing the other end of the pin 508 to slide along the inner wall of the sliding groove 2 503. The sliding pin 508 will cause the slide plate 509 to slide along the inner wall of the slide groove 504. When the slide plate 509 slides, it will cause the spring 511 to be compressed. When the pin 508 continues to slide to the corresponding position of the slot 507, the slide plate 509 will cause the pin 508 to be reset under the rebound of the spring 511. The pin 508 will be fixed to the inner cavity of the slot 507, thereby realizing the installation connection between the spray gun nozzle 1 and the protective sleeve 3. At the same time, when it is necessary to detach the protective sleeve 3 from the spray gun nozzle 1, the pull rod 510 can be pulled to achieve the detachment of the spray gun nozzle 1 and the protective sleeve 3 through the opposite operation.

[0028] In a preferred embodiment: the outer wall of the slider 4 is adapted to the inner wall of the guide groove 2, and the inner wall of the turntable 9 is slidably fitted to the inner wall of the slide groove 6.

[0029] In the above structure, the arrangement of slider 4, guide groove 2, turntable 9 and slide groove 6 allows the protective sleeve 3 to slide along the inner wall of guide groove 2 when the spray gun nozzle 1 is connected to the protective sleeve 3. This completes the pre-connection preparation work. After the protective sleeve 3 is connected to the spray gun nozzle 1, when the spray gun nozzle 1 needs to operate, the turntable 9 is rotated along the inner wall of slide groove 6, thereby activating the protective tooling of the protective sleeve 3 during the operation of the spray gun nozzle 1.

[0030] In a preferred embodiment: the straight groove 7, the connecting column 8, the arc groove 10 and the protective shell 11 are regarded as a group of movable components, and the number of such movable components is six, all arranged in a circular array on the outer wall of the protective sleeve 3 and the turntable 9.

[0031] In the above structure, by setting the straight groove 7, connecting column 8, arc groove 10 and protective shell 11, when the turntable 9 rotates, the six straight grooves 7, connecting column 8, arc groove 10 and protective shell 11 distributed in a circular array will perform relative transmission cooperation, thereby realizing the adjustment of its protective tooling.

[0032] In a preferred embodiment: the inner walls of the six arc-shaped grooves 10 are slidably fitted to the outer wall of the connecting column 8, the outer wall of the connecting column 8 is slidably fitted to the inner wall of the straight groove 7, and the protective shell 11 is fan-shaped and is slidably fitted to the outer wall of the turntable 9.

[0033] In the above structure, by setting up the arc-shaped groove 10, connecting column 8, straight groove 7 and protective shell 11, when the turntable 9 rotates, the turntable 9 will drive the six arc-shaped grooves 10 to rotate relatively synchronously. The six connecting columns 8 will slide along the inner wall of the six straight grooves 7 along the movement trajectory of the six arc-shaped grooves 10. The sliding of the six connecting columns 8 will drive the six protective shells 11 to expand and adjust. In this way, the expanded area of ​​the six protective shells 11 will limit the size of the area sprayed by the spray gun nozzle 1, thereby protecting the area that does not need to be sprayed.

[0034] Working principle: First, during the pre-installation preparation of the tooling, the protective sleeve 3 is brought close to the spray gun nozzle 1, aligning the slider 4 with the guide groove 2. When the protective sleeve 3 is pushed, the slider 4 slides along the inner wall of the guide groove 2. At this time, the convex block 506 in the connecting assembly 5 begins to contact the inner wall of the guide groove 2. During the pushing of the protective sleeve 3, the convex block 506 is squeezed by the inner wall of the guide groove 2, sliding along the inner wall of the first circular groove 501 and compressing the second spring 512. When the convex block 506 slides to the position corresponding to the second arc groove 502, the rebound of the second spring 512 pushes the convex block 506 back into the inner cavity of the second arc groove 502, thus... After the convex block 506 is reset, its top will push the pin 508, so that when the pin 508 slides along the inner wall of the second slide groove 503, it will drive the slide plate 509 to slide along the inner wall of the third slide groove 504 and compress the spring 511. When the pin 508 slides to the position corresponding to the slot 507, it will cause the spring 511 to rebound, push the slide plate 509 to drive the pin 508 to reset, so that the pin 508 is inserted into the inner cavity of the slot 507, thereby completing the connection and fixation between the spray gun nozzle 1 and the protective sleeve 3.

[0035] Secondly, before operation, the spray gun nozzle 1 rotates the turntable 9, causing the inner wall of the turntable 9 to slide along the inner wall of the slide groove 6. When the turntable 9 rotates, the six arc-shaped grooves 10 rotate synchronously, causing the six connecting posts 8 to slide along the inner wall of the arc-shaped grooves 10 and simultaneously slide in a straight line along the inner wall of the straight groove 7. The sliding of the connecting posts 8 causes the six fan-shaped protective shells 11 to slide along the outer wall of the turntable 9, causing the six protective shells 11 to expand outward synchronously, forming a larger protective area. This limits the spray coverage of the spray gun nozzle 1 and isolates the areas that do not need to be sprayed for protection.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective fixture for thermal spraying, comprising a spray gun nozzle (1), characterized in that: The inner wall of the spray gun nozzle (1) is provided with a guide groove (2), the outer wall of the spray gun nozzle (1) is provided with a protective sleeve (3), the outer wall of the protective sleeve (3) is fixedly fitted with a slider (4), the top of the slider (4) is provided with a connecting component (5), the outer wall of the protective sleeve (3) is provided with a sliding groove (6) and a straight groove (7), the outer wall of the protective sleeve (3) is provided with a connecting column (8) and a turntable (9), the outer wall of the turntable (9) is provided with an arc groove (10), and the top of the connecting column (8) is fixedly installed with a protective shell (11).

2. A protective shield for thermal spraying as defined in claim 1, wherein: The connecting component (5) includes a circular groove (501). The inner wall of the guide groove (2) is provided with an arc groove (502), a sliding groove (503), a sliding groove (504), and a circular groove (505). The inner cavity of the circular groove (501) is provided with a convex block (506) and a spring (512). The outer wall of the convex block (506) is provided with a slot (507). The inner wall of the sliding groove (503) is slidably connected with a pin (508). The top of the pin (508) is fixedly fitted with a sliding plate (509). The outer wall of the sliding plate (509) is fixedly installed with a pull rod (510). The outer wall of the pull rod (510) is provided with a spring (511).

3. A protective shield for thermal spraying as defined in claim 2, wherein: The second spring (512) is located at the bottom of the convex block (506), and one end of the second spring (512) overlaps with the convex block (506), and the other end overlaps with the inner wall of the first circular groove (501). The outer wall of the convex block (506) is fitted and slidably disposed with the inner wall of the first circular groove (501). The shape of the convex block (506) is adapted to the shape of the second arc groove (502). The outer wall of the pin (508) is fitted and slidably disposed with the top of the convex block (506). The shape of the pin (508) is adapted to the shape of the slot (507). The outer wall of the slide plate (509) is fitted and slidably disposed with the inner wall of the third sliding groove (504). The first spring (511) is located in the inner cavity of the second circular groove (505), and one end overlaps with the slide plate (509), and the other end overlaps with the inner wall of the second circular groove (505).

4. A protective shield for thermal spraying as defined in claim 1, wherein: The outer wall of the slider (4) is adapted to the inner wall of the guide groove (2), and the inner wall of the turntable (9) is fitted and slidably disposed with the inner wall of the slide groove (6).

5. The protective fixture for thermal spraying according to claim 1, characterized in that: The straight groove (7), connecting column (8), arc groove (10) and protective shell (11) are considered as a set of movable components, and the number of such movable components is six, all arranged in a circular array on the outer wall of the protective sleeve (3) and the turntable (9).

6. A protective shield for thermal spraying as defined in claim 1, wherein: The inner walls of the six arc-shaped grooves (10) are fitted and slidably disposed in contact with the outer wall of the connecting column (8), the outer wall of the connecting column (8) is fitted and slidably disposed in contact with the inner wall of the straight groove (7), and the protective shell (11) is fan-shaped and is fitted and slidably disposed in contact with the outer wall of the turntable (9).

Images