A robotic nozzle guard for welding

Abstract

The utility model relates to robot nozzle technical field, and disclose a kind of robot nozzle protection device for welding, solve the problem that existing robot nozzle is not good at protection effect, it includes nozzle protection cover, the nozzle protection cover is installed in the one end of welding robot nozzle assembly, nozzle protection cover is by protection cover main part and lining component constitutes, lining component is installed in the inside of protection cover main part and is pasted with the one end of welding robot nozzle assembly, lining component is by positioning ring, three support arms and protection combination ring constitutes, three support arms are all welded in the side of positioning ring bottom end, protection combination ring is welded in the bottom end of three support arms, protection combination ring is by outer ring, inner ring and a plurality of connecting branch plate constitutes;By the protection device, the protection effect of robot nozzle can be improved, and the service life of robot nozzle is improved.

Description

Technical Field

[0001] This utility model belongs to the field of robot nozzle technology, specifically a robot nozzle protection device for welding. Background Technology

[0002] The welding robot nozzle is a key component of welding equipment, mainly used to spray protective gases such as carbon dioxide to protect the welding area from air interference and ensure welding quality. Existing nozzles have the disadvantage of poor protective effect. The high-temperature sparks and molten slag generated during welding directly impact the nozzle, and the molten slag may cause nozzle deformation and blockage, affecting its service life. Therefore, this application proposes a protective device for a welding robot nozzle. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a robot nozzle protection device for welding, which effectively solves the problem of poor protection effect of existing robot nozzles.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a robot nozzle protection device for welding, comprising a nozzle protection cover, wherein the nozzle protection cover is installed at one end of a welding robot nozzle assembly, the nozzle protection cover is composed of a cover body and an inner liner assembly, the inner liner assembly is installed inside the cover body and fits against one end of the welding robot nozzle assembly, the inner liner assembly is composed of a positioning ring, three support arms and a protective combination ring, the three support arms are all welded to the side of the bottom end of the positioning ring, and the protective combination ring is welded to the bottom end of the three support arms;

[0005] The protective combination ring consists of an outer ring, an inner ring, and several connecting support plates. The outer ring is welded to the bottom of three support arms, and the inner ring is located inside the outer ring. The central axes of the outer ring and the inner ring coincide. The connecting support plates are welded between the outer ring and the inner ring, forming an annular jet chamber between the outer ring and the inner ring, and forming a central jet chamber inside the inner ring.

[0006] Preferably, the welding robot nozzle assembly consists of a bent tube, an insulating nut, an internally threaded connecting rod, and a conductive nozzle. The insulating nut is threaded to one end of the bent tube, the internally threaded connecting rod passes through the interior of the insulating nut, and the conductive nozzle is connected to one end of the internally threaded connecting rod.

[0007] Preferably, the diameter of the protective cover body decreases sequentially from one end near the welding robot nozzle assembly to the other end.

[0008] Preferably, the outer surface of the outer ring is fitted with the inner surface of the protective cover body, the protective cover body and the welding robot nozzle assembly are threaded connection structures, the top of the inner surface of the protective cover body is provided with an internal thread that matches the welding robot nozzle assembly, and the diameter of the positioning ring is smaller than the inner diameter of the threaded section of the protective cover body.

[0009] Preferably, both the protective cover body and the inner lining assembly are made of tungsten carbide alloy and ceramic coating, with the ceramic coating located on the inner and outer surfaces of the tungsten carbide alloy.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] (1) In operation, by setting the main body of the protective cover and the protective combination ring consisting of the outer ring, the inner ring and several connecting support plates, the welding robot nozzle assembly can be protected. By setting the annular jet chamber and the central jet chamber, the gas flow rate can be increased at the same gas supply speed compared with the traditional open structure, effectively preventing welding slag from entering the interior of the main body of the protective cover, thereby preventing welding slag from contacting the welding robot nozzle assembly.

[0012] (2) By setting the protective cover body and inner lining components made of tungsten steel alloy and ceramic coating, its overall strength and wear resistance can be improved, thereby extending the service life. The inner lining components are detachable, so they can be replaced individually. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the connection structure between the nozzle protective cover and the welding robot nozzle assembly of this utility model;

[0016] Figure 2 This is a schematic diagram of the nozzle assembly structure of the welding robot of this utility model;

[0017] Figure 3 This is a partial structural diagram of the nozzle protective cover of this utility model;

[0018] Figure 4 This is a schematic diagram of the inner lining component structure of this utility model;

[0019] Figure 5 This is a partial structural diagram of the protective combination ring of this utility model;

[0020] Figure 6 This is a partial sectional view of the main body of the protective cover of this utility model;

[0021] In the diagram: 1. Nozzle protective cover; 2. Welding robot nozzle assembly; 3. Protective cover body; 4. Inner liner assembly; 5. Positioning ring; 6. Support arm; 7. Protective combination ring; 8. Outer ring; 9. Inner ring; 10. Connecting support plate; 11. Annular jet chamber; 12. Central jet chamber; 13. Bend; 14. Insulating nut; 15. Internal threaded connecting rod; 16. Conductive nozzle; 17. Tungsten carbide alloy; 18. Ceramic coating; 19. Internal thread. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Depend on Figures 1 to 6 The present invention discloses a nozzle protection device for welding robots, comprising a nozzle protection cover 1, which is installed at one end of a welding robot nozzle assembly 2. The nozzle protection cover 1 is composed of a cover body 3 and an inner liner assembly 4. The inner liner assembly 4 is installed inside the cover body 3 and fits against one end of the welding robot nozzle assembly 2. The inner liner assembly 4 is composed of a positioning ring 5, three support arms 6, and a protective combination ring 7. The three support arms 6 are all welded to the side of the bottom end of the positioning ring 5. The protective combination ring 7 is welded to the bottom end of the three support arms 6. The protective combination ring 7 is composed of an outer ring 8, an inner ring 9, and several connecting support plates 10. The outer ring 8 is welded to the bottom end of the three support arms 6, and the inner ring 9 is located inside the outer ring 8. The central axes of the outer ring 8 and the inner ring 9 coincide. The connecting support plates 10 are welded between the outer ring 8 and the inner ring 9. An annular jet chamber 11 is formed between the outer ring 8 and the inner ring 9, and a central jet chamber 12 is formed inside the inner ring 9.

[0024] The protective cover body 3 protects the welding robot nozzle assembly 2. The inner liner component 4 optimizes the air jet of the protective cover body 3, increasing the air jet speed at the air jet position under the same air supply rate. It uses air pressure to prevent welding slag from entering the interior of the protective cover body 3. The positioning ring 5 and three support arms 6 limit the protective combination ring 7. One end of the welding robot nozzle assembly 2 can press and limit the positioning ring 5, thereby improving the overall stability and preventing loosening. The protective combination ring 7, composed of the outer ring 8, inner ring 9 and several connecting support plates 10, can also block welding slag. The annular air jet chamber 11 and the central air jet chamber 12 allow the protective gas to be ejected. The central air jet chamber 12 also facilitates the passage of welding rods.

[0025] The welding robot nozzle assembly 2 consists of a bent tube 13, an insulating nut 14, an internal threaded connecting rod 15, and a conductive nozzle 16. The insulating nut 14 is threaded to one end of the bent tube 13, the internal threaded connecting rod 15 passes through the interior of the insulating nut 14, and the conductive nozzle 16 is connected to one end of the internal threaded connecting rod 15. The diameter of the protective cover body 3 decreases sequentially from one end near the welding robot nozzle assembly 2 to the other end. The outer surface of the outer ring 8 is in contact with the inner surface of the protective cover body 3. The protective cover body 3 and the welding robot nozzle assembly 2 are connected by a threaded structure. The top of the inner surface of the protective cover body 3 is provided with an internal thread 19 that matches the welding robot nozzle assembly 2. The diameter of the positioning ring 5 is smaller than the inner diameter of the threaded section of the protective cover body 3.

[0026] The diameter of the protective cover body 3 decreases sequentially from one end to the other end near the welding robot nozzle assembly 2, thus forming an inclined surface structure. The outer ring 8 can fit tightly with the inner surface of the protective cover body 3 to improve the limiting effect. The diameter of the positioning ring 5 is smaller than the inner diameter of the threaded section of the protective cover body 3, which makes it easier to install the positioning ring 5 inside the protective cover body 3.

[0027] Both the main body 3 and the inner lining component 4 of the protective cover are made of tungsten steel alloy 17 and ceramic coating 18. The ceramic coating 18 is located on the inner and outer surfaces of the tungsten steel alloy 17, which can improve the overall strength and wear resistance.

[0028] During operation, by setting up a protective cover body and a protective combination ring consisting of an outer ring, an inner ring, and several connecting support plates, the welding robot nozzle assembly can be protected. The setting of an annular jet chamber and a central jet chamber can increase the gas flow rate at the same gas supply speed compared to the traditional open structure, effectively preventing welding slag from entering the interior of the protective cover body, and thus preventing the welding slag from contacting the welding robot nozzle assembly. By setting up a protective cover body and inner lining assembly made of tungsten steel alloy and ceramic coating, its overall strength and wear resistance can be improved, thereby extending its service life. The inner lining assembly is a detachable structure, which can be replaced individually.

Claims

1. A robot nozzle protection device for welding, comprising a nozzle protection cover (1), characterized in that: The nozzle protective cover (1) is installed at one end of the welding robot nozzle assembly (2). The nozzle protective cover (1) consists of a protective cover body (3) and an inner liner assembly (4). The inner liner assembly (4) is installed inside the protective cover body (3) and fits against one end of the welding robot nozzle assembly (2). The inner liner assembly (4) consists of a positioning ring (5), three support arms (6) and a protective combination ring (7). The three support arms (6) are all welded to the side of the bottom end of the positioning ring (5), and the protective combination ring (7) is welded to the bottom end of the three support arms (6). The protective combination ring (7) consists of an outer ring (8), an inner ring (9) and several connecting support plates (10). The outer ring (8) is welded to the bottom of the three support arms (6). The inner ring (9) is located inside the outer ring (8). The central axis of the outer ring (8) and the inner ring (9) coincide. The connecting support plates (10) are welded between the outer ring (8) and the inner ring (9). An annular jet chamber (11) is formed between the outer ring (8) and the inner ring (9). A central jet chamber (12) is formed inside the inner ring (9).

2. The robot nozzle protection device for welding according to claim 1, characterized in that: The welding robot nozzle assembly (2) consists of a bent tube (13), an insulating nut (14), an internal threaded connecting rod (15), and a conductive nozzle (16). The insulating nut (14) is threaded to one end of the bent tube (13), the internal threaded connecting rod (15) is connected through the interior of the insulating nut (14), and the conductive nozzle (16) is connected to one end of the internal threaded connecting rod (15).

3. The robot nozzle protection device for welding according to claim 1, characterized in that: The diameter of the protective cover body (3) decreases sequentially from one end near the welding robot nozzle assembly (2) to the other end.

4. A robot nozzle protection device for welding according to claim 1, characterized in that: The outer surface of the outer ring (8) is in contact with the inner surface of the protective cover body (3). The protective cover body (3) and the welding robot nozzle assembly (2) are connected by a thread. The top of the inner surface of the protective cover body (3) is provided with an internal thread (19) that matches the welding robot nozzle assembly (2). The diameter of the positioning ring (5) is smaller than the inner diameter of the threaded section of the protective cover body (3).

5. A robot nozzle protection device for welding according to claim 1, characterized in that: The protective cover body (3) and the inner lining assembly (4) are both made of tungsten steel alloy (17) and ceramic coating (18), with the ceramic coating (18) located on the inner and outer surfaces of the tungsten steel alloy (17).

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