Electric arc spraying device for motor machining

Abstract

The utility model relates to the technical field of motor processing equipment, in particular to an electric arc spraying device for motor processing, which comprises a spraying gun body, an inner protective sleeve is sleeved outside the spraying gun body, an outer protective sleeve with an extensible position is arranged outside the inner protective sleeve, hand pressing pieces are symmetrically arranged inside the inner protective sleeve, and the hand pressing pieces are connected with the inner protective sleeve. A butt joint ring is arranged at the outer end of the inner protective sleeve, protruding columns are arranged on the two sides of the butt joint ring, elastic swing arms are rotationally connected to the outer ends of the protruding columns, supporting blocks are arranged at the outer ends of the elastic swing arms, and the supporting blocks and the elastic swing arms jointly form an auxiliary supporting point structure of the spraying gun body. The electric arc spraying device for motor machining effectively prevents high-temperature splashes from hurting hands, remarkably improves operation safety, meanwhile, relieves arm fatigue caused by long-time holding operation, and improves spraying precision and operation stability.

Description

Technical Field

[0001] This utility model relates to the field of motor processing equipment technology, specifically to an electric arc spraying device for motor processing. Background Technology

[0002] In the manufacturing and repair of electric motors, arc spraying technology is often used for surface treatment to improve the wear resistance and corrosion resistance of parts or to repair worn surfaces. Arc spraying is a process that uses an electric arc to heat a metal wire to a molten state, and then atomizes and sprays it onto the surface of the workpiece to form a coating.

[0003] Currently, handheld arc spray guns are highly flexible and particularly suitable for on-site operations and localized repair work in complex environments. However, existing handheld arc spray guns have the problem of insufficient hand protection during actual use. Due to the high-temperature splatter and strong light radiation generated during spraying operations, these factors can easily cause burns or injuries to the operator's hands. Especially during long-term operation, the lack of effective hand protection structures exposes workers to higher safety risks. In addition, the lack of auxiliary support structures when holding the spray gun for a long time leads to operator arm fatigue, affecting spraying accuracy and operational stability. Utility Model Content

[0004] The purpose of this utility model is to provide an electric arc spraying device for motor processing, so as to solve the problems mentioned in the background art that the current handheld electric arc spraying gun lacks effective protection for the hands during use, poses operational safety hazards, and lacks auxiliary support when held for a long time, which easily leads to operator fatigue.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electric arc spraying device for motor processing, comprising a spray gun body, an inner protective sleeve covering the outside of the spray gun body, an outer protective sleeve with an extendable position covering the outside of the inner protective sleeve, hand clamping parts symmetrically arranged inside the inner protective sleeve, and a docking ring at the outer end of the inner protective sleeve, with protrusions on both sides of the docking ring, and an elastic swing arm rotatably connected to the outer end of the protrusions, with a support block at the outer end of the elastic swing arm, the support block and the elastic swing arm together forming an auxiliary support point structure for the spray gun body.

[0006] Preferably, the outer wall of the inner protective sleeve is symmetrically connected with rolling balls in the middle, and the inner walls on both sides of the outer protective sleeve are provided with vertically distributed ball grooves that cooperate with the rolling balls.

[0007] Preferably, the inner protective sleeve is provided with positioning guide posts on both outer walls, and the outer protective sleeve is welded and fixed with positioning guide sleeves on both outer walls.

[0008] Preferably, a pusher is sleeved on the outer side of the inner end of the protrusion, and the outer side of the pusher is connected to the inner end of the elastic swing arm through a tension spring.

[0009] Preferably, both outer walls of the mating ring are provided with threaded interfaces, and the inner end of the protruding post is connected to the threaded interface through a threaded structure.

[0010] Preferably, the hand clamping components are all arc-shaped structures with flexible pads on their inner walls, and the outer walls of the hand clamping components are connected to the inner walls of the inner protective sleeve through elastic compression pads.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This electric arc spraying device effectively prevents high-temperature splashes from damaging the hands, significantly improving operational safety. It also reduces arm fatigue caused by prolonged holding, and improves spraying accuracy and operational stability. The device enhances heat insulation and physical protection for the hands by incorporating a double-layer protective mechanism consisting of an inner and outer protective sleeve on the exterior of the spray gun body. The hand clamping structure improves grip comfort and stability. The auxiliary support point structure, composed of an elastic swing arm and a support block, allows for flexible deployment and weight distribution during operation, effectively alleviating the operator's arm burden and improving work continuity and spraying quality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an electric arc spraying device for motor processing according to the present invention;

[0013] Figure 2 This is a schematic diagram of the internal structure of the inner protective sleeve of the electric arc spraying device for motor processing according to this utility model;

[0014] Figure 3 This is a schematic diagram of the external side view of the docking ring of an electric arc spraying device for motor processing according to this utility model.

[0015] In the diagram: 1. Spray gun body; 2. Inner protective sleeve; 3. Outer protective sleeve; 4. Hand clamping part; 5. Ball groove; 6. Ball; 7. Positioning guide sleeve; 8. Positioning guide post; 9. Connecting ring; 10. Protruding post; 11. Elastic swing arm; 12. Support block; 13. Pushing part; 14. Tension spring; 15. Threaded interface. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-3This utility model provides a technical solution: an electric arc spraying device for motor processing, including a spray gun body 1, an inner protective sleeve 2 covering the outside of the spray gun body 1, an outer protective sleeve 3 extending outwards from the inner protective sleeve 2, hand clamping parts 4 symmetrically arranged inside the inner protective sleeve 2, and a docking ring 9 at the outer end of the inner protective sleeve 2. The docking ring 9 and the inner protective sleeve 2 are integrally formed, and the docking ring 9 can be screwed to the outside of the spray gun body 1. Both sides of the docking ring 9 are provided with protrusions 10, and the outer ends of the protrusions 10 are rotatably connected to elastic swing arms 11 via pins. The outer ends of the elastic swing arms 11 are rotatably connected to support blocks 12 via pivots. The support blocks 12 are cylindrical structures made of elastic material. The support blocks 12 and the elastic swing arms 11 are connected to each other. The boom 11 together forms an auxiliary support point structure for the spray gun body 1. This structure allows the operator to place their hand inside the inner protective sleeve 2 and between the two hand clamping parts 4, providing a comfortable grip. Simultaneously, the inner protective sleeve 2 and the outer protective sleeve 3 together form an external protective barrier for the operator's hands, effectively blocking high-temperature splatter generated during spraying and preventing burns. When prolonged spraying operations are required, the elastic swing arm 11 forms an auxiliary support point structure through the support block 12 at its outer end. This structure achieves stable deployment of the elastic swing arm 11 through the connection between the protrusion 10 and the docking ring 9, and uses the support block 12 to abut against the workpiece surface or nearby support points, thereby sharing the load on the spray gun body. The weight of part of the inner protective sleeve 2 is reduced, decreasing the burden on the operator's arms and improving operational stability. This solves the problem of existing handheld arc spray guns lacking effective hand protection and auxiliary support structures, leading to low operational safety, fatigue, and poor spraying accuracy. The inner protective sleeve 2 has symmetrically rolling ball bearings 6 connected to its outer wall in the middle, and the inner walls of both sides of the outer protective sleeve 3 are provided with vertically distributed ball bearing grooves 5 that cooperate with the ball bearings 6. This structure allows for smooth and stable relative movement between the inner and outer protective sleeves 2 and 3, enabling flexible adjustment to a suitable protective length and providing the operator with a more flexible operating experience. Positioning guide posts 8 are fixed to both outer walls of the inner protective sleeve 2 via connecting blocks, and positioning guide posts 8 are welded to both outer walls of the outer protective sleeve 3. The inner protective sleeve 2 and the outer protective sleeve 3 are fitted with a damping ring. This structure ensures good guidance and stability when the inner protective sleeve 2 and the outer protective sleeve 3 move relative to each other. That is, the positioning guide post 8 and the positioning guide sleeve 7 make the sliding of the outer protective sleeve 3 more precise and smooth, while the damping ring in the positioning guide sleeve 7 further increases the resistance during sliding, ensuring the stability of the inner protective sleeve 2 and the outer protective sleeve 3 during protection. The outer side of the inner end of the protrusion 10 is fitted with a pusher 13, and the outer side of the pusher 13 is connected to the inner end of the elastic swing arm 11 through a tension spring 14. This structure can make the elastic swing arm 11 rotate around the protrusion 10 by applying appropriate pressure, so that the support block 12 contacts and is stably placed on the workpiece surface or the support point nearby.The tension spring 14 not only ensures that the elastic swing arm 11 can quickly return to its original position after the loss of external force, but also provides appropriate reaction force, so that the support block 12 and the support point maintain a good contact state, increasing the stability and reliability of use. In addition, this mechanism allows the device to quickly and conveniently adjust the angle and position of the auxiliary support according to actual working needs, improving operational flexibility and efficiency, while reducing fatigue caused by long-term hand operation, further enhancing the practicality and user-friendliness of the equipment. Both outer walls of the docking ring 9 are provided with threaded interfaces 15, and the inner end of the protrusion 10 is connected to the threaded interface 15 through a threaded structure. This structure, through the cooperation between the threaded interface 15 and the protrusion 10, not only achieves a firm fixation of the elastic swing arm 11, but also ensures its stability during use. The threaded connection method ensures stability and reliability during use, and allows for easy disassembly, facilitating the replacement or maintenance of different specifications of the elastic swing arm 11 components by operators according to actual needs. This enhances the adaptability and flexibility of the device. The hand clamping components 4 are all arc-shaped structures with flexible pads on their inner walls. The outer wall of the hand clamping components 4 is connected to the inner wall of the inner protective sleeve 2 via elastic compression pads. This structure ensures that the operator's hand can comfortably and firmly grip the spray gun body 1. The flexible pads further enhance grip comfort and anti-slip performance. The presence of the elastic compression pads allows the hand clamping components 4 to slightly adjust their position and angle under different grip forces, thus adapting to various hand sizes and effectively absorbing vibrations generated during operation, reducing pressure and fatigue on the hands.

[0018] Working Principle: When using this motor to process the arc spraying device, the operator first inserts their hand into the inner protective sleeve 2 and places it between the two hand clamping parts 4. The hand clamping parts 4 are used for gripping, and their position can be slightly adjusted according to the hand shape during the gripping process. At the same time, the inner protective sleeve 2 and the slidingly adjustable outer protective sleeve 3 together form the hand protection structure. The operator adjusts the protection length by pushing or retracting the outer protective sleeve 3. At this time, the ball bearings 6 on the outer wall of the inner protective sleeve 2 roll in the ball bearing grooves 5 on the inner wall of the outer protective sleeve 3. Simultaneously, the positioning guide post 8 is inserted into the positioning guide sleeve 7, and the damping ring inside it... Providing sliding resistance ensures that the outer protective sleeve 3 stays in the required position. When auxiliary support is needed, the operator extends the elastic swing arm 11 outward, causing it to rotate around the protrusion 10. The pusher 13 compresses the tension spring 14, causing the support block 12 to contact the workpiece surface or nearby support point. The fulcrum formed by the support block 12 and the elastic swing arm 11 shares part of the weight of the spray gun body 1. At this time, the elastic swing arm 11 maintains a stable support state through the rebound force of the tension spring 14. When it is necessary to replace or disassemble the elastic swing arm 11, the disassembly and assembly can be completed by loosening the threaded interface 15 on the protrusion 10 and the mating ring 9, thus completing a series of operations.

[0019] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An electric arc spraying device for motor processing, comprising a spray gun body (1), characterized in that: The spray gun body (1) is covered with an inner protective sleeve (2), and the inner protective sleeve (2) is covered with an outer protective sleeve (3) with an extendable position. The inner protective sleeve (2) is symmetrically provided with hand clamping parts (4) inside, and the outer end of the inner protective sleeve (2) is provided with a docking ring (9). Both sides of the docking ring (9) are provided with protrusions (10). The outer end of the protrusions (10) is rotatably connected to an elastic swing arm (11). The outer end of the elastic swing arm (11) is provided with a support block (12). The support block (12) and the elastic swing arm (11) together form an auxiliary support point structure for the spray gun body (1).

2. The electric arc spraying device for motor processing according to claim 1, characterized in that: The outer wall of the inner protective sleeve (2) is symmetrically connected with rolling balls (6), and the inner walls on both sides of the outer protective sleeve (3) are provided with vertically distributed ball grooves (5) that cooperate with the rolling balls (6).

3. The electric arc spraying device for motor processing according to claim 1, characterized in that: The inner protective sleeve (2) has positioning guide posts (8) on both sides of its outer wall, and the outer protective sleeve (3) has positioning guide sleeves (7) welded and fixed on both sides of its outer wall.

4. The electric arc spraying device for motor processing according to claim 1, characterized in that: The outer side of the inner end of the protrusion (10) is fitted with a pusher (13), and the outer side of the pusher (13) is connected to the inner end of the elastic swing arm (11) through a tension spring (14).

5. The electric arc spraying device for motor processing according to claim 1, characterized in that: The outer walls on both sides of the docking ring (9) are provided with threaded interfaces (15), and the inner end of the protrusion (10) is connected to the threaded interface (15) through a threaded structure.

6. The electric arc spraying device for motor processing according to claim 1, characterized in that: The hand clamping parts (4) are all arc-shaped structures with flexible pads on their inner walls, and the outer wall of the hand clamping parts (4) is connected to the inner wall of the inner protective sleeve (2) through elastic compression pads.

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