Protection device and welding system

Abstract

The utility model relates to the technical field of welding, and discloses a protection device and a welding system.The protection device is suitable for being fixedly connected to a welding piece and comprises a first fixing piece, a second fixing piece and a third fixing piece, the supporting piece is connected with the first fixing piece, and the supporting piece is suitable for placing a camera; the protection part is arranged below the supporting part and is suitable for protecting a lens of the camera; and the shielding assembly is arranged below the protection part, an angle is formed between the extension direction of the shielding assembly and the extension direction of the protection part, and the shielding assembly is at least arranged below the side, close to the welding part, of the protection part and is suitable for protecting the protection part. Through the arrangement of the protection piece, the camera can be protected, and it is avoided that splashing welding slag is splashed to a camera lens, the lens is damaged, and the maintenance cost is increased; by arranging the shielding assembly, welding slag splashed in the welding process can be prevented from being splashed to the protection piece, normal use of the camera is not affected, and the welding quality and the welding efficiency of the welding piece can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a protection device and a welding system. Background Art

[0002] Welding robots are widely used in structures with large assembly errors, such as steel structures, carriage plates, steel bars, air-raid doors, and tube-plate parts. They can improve welding quality and reduce labor costs. By setting a camera on the welding gun of the welding robot and cooperating with software, it is possible to realize functions such as feature extraction of complex welds, trajectory location, and workpiece alignment and positioning.

[0003] However, when welding robots are welding indoors, the camera is sensitive to the surrounding environment. If the light and dust in the environment do not meet the requirements, it will affect the camera's recognition accuracy and thus the welding quality. When welding outdoors, the slag splashes generated during welding will also affect the camera, which can affect the camera's recognition accuracy and reduce welding quality, or even cause repairs and waste of work time.

[0004] Therefore, a welding robot based on visual detection is disclosed in the prior art, such as Figure 1 As shown, the welding robot includes a robot body 01, a welding gun 02 is fixedly connected to the end of the robot body 01, a mounting seat 03 is sleeved on the welding gun 02, a camera probe 04 is fixedly connected to the mounting seat 03, a mounting ring 05 is provided on one side of the camera probe 04, a collar 06 is installed inside the mounting ring 05, and a protective lens is fixedly connected to the inner wall of the collar 06. The protective lens is arranged close to the camera probe 04, which can provide a protective effect and prevent the splashing welding slag from splashing onto the camera probe 04.

[0005] However, during the welding process, if the splashing welding slag splashes onto the protective lens, it will also interfere with the line of sight of the camera probe 04, making it impossible to accurately determine whether the welding position is correct. In order not to affect the welding quality, it is necessary to stop welding midway and replace a new protective lens, which will reduce the welding efficiency. Utility Model Content

[0006] In view of this, the utility model provides a protection device and a welding system to solve the problem of reduced welding efficiency caused by replacing protective lenses during welding.

[0007] In a first aspect, the utility model provides a protective device suitable for being fixedly connected to a welded part, comprising:

[0008] A first fixing member, adapted to be fixedly connected to the welding member;

[0009] A support member connected to the first fixing member, wherein the support member is suitable for placing a camera;

[0010] A protective member, disposed below the support member, suitable for protecting the lens of the camera;

[0011] A shielding assembly is arranged below the protective member, and an extension direction of the shielding assembly and an extension direction of the protective member form an angle with each other. The shielding assembly is at least arranged below a side of the protective member close to the welding member, and is suitable for protecting the protective member.

[0012] Beneficial effects: By setting the first fixing part, the protective device can be easily fixed and installed on the welding part, and the installation is convenient without causing any interference to the use of the welding part; by setting the supporting part, the camera can be supported; by setting the protective part, the camera can be protected to prevent splashing welding slag from splashing onto the camera lens, causing damage to the lens and increasing the maintenance cost; by setting the shielding component, the strong light generated during the welding process can be prevented from damaging the camera lens, thereby causing inaccurate image recognition, and by arranging the shielding component at least below the side of the protective part close to the welding part, the splashing welding slag during the welding process can be prevented from splashing onto the protective part and affecting the normal use of the camera, thereby improving the welding quality and welding efficiency of the welding part.

[0013] In an optional implementation, the shielding component includes:

[0014] A first shielding portion, provided on a side of the protective member close to the welding member;

[0015] The second shielding portion and the third shielding portion are respectively connected to two sides of the first shielding portion, and the extension direction of the second shielding portion and the third shielding portion is different from the extension direction of the first shielding portion.

[0016] Beneficial effect: By providing the first shielding part, the second shielding part and the third shielding part, the protective part can be protected at multiple angles, and welding slag is not easy to splash onto the protective part.

[0017] In an optional embodiment, the setting height of the first shielding portion is adjustable along the vertical direction;

[0018] And / or, the shielding component is a brass part.

[0019] Beneficial effects: By setting the height of the first shielding part to be adjustable, it can be adjusted according to the distance between the protection device and the welding head of the welding part, so as to further protect the protective part and prevent the first shielding part from being unable to effectively shield when the distance between the protection device and the welding head of the welding part is far; the shielding component is made of brass, and the adhesion between welding slag and brass structure is poor, so the welding slag is not easy to stick to the shielding component, and even if it sticks to the shielding component, it is easy to clean.

[0020] In an optional embodiment, an adjustment component is provided between the support member and the protective member, and the adjustment component is suitable for adjusting the distance between the support member and the protective member.

[0021] Beneficial effect: By setting the adjustment component, the protective part can be pressed and fixed firmly, and it is also convenient to take out the protective part when replacing it.

[0022] In an optional embodiment, the adjustment component includes:

[0023] A pressure plate, disposed between the support member and the protective member;

[0024] An elastic member is disposed between the support member and the pressing plate, and the elastic member presses the pressing plate to fix the protective member.

[0025] Beneficial effects: By setting up a pressure plate, the force is evenly distributed, which can prevent the adjustment component from causing stress concentration on the protective part, causing cracking and shortening the service life of the protective part; by setting up an elastic part, pressure can be applied to the pressure plate to press the protective part, making it difficult for the protective part to move, and the pressure plate can be pushed up to leave appropriate space for easy removal of the protective part.

[0026] In an optional embodiment, the protection device includes:

[0027] The second fixing member is fixedly connected to the lower part of the supporting member. The second fixing member is provided with a receiving cavity. The protective member and the adjusting assembly are arranged in the receiving cavity.

[0028] Beneficial effect: By providing the second fixing member, the protective member can be placed in the accommodating cavity without being connected to other structures, thereby facilitating replacement of the protective member.

[0029] In an optional embodiment, an opening is provided at one end of the second fixing member, and the opening is communicated with the accommodating cavity.

[0030] Beneficial effect: By setting the opening, it is convenient to replace the protective part through the opening.

[0031] In an optional embodiment, the protection device includes:

[0032] The blocking member is arranged at the opening, and the blocking member has a first state of opening the opening and a second state of closing the opening.

[0033] Beneficial effect: By providing a blocking piece, the opening can be closed, thereby preventing the protective piece from falling from the opening.

[0034] In an optional embodiment, the first fixing member has an installation cavity, an anti-conductive member is arranged in the installation cavity, the anti-conductive member has a hollow cavity, and the welding member is fixedly connected in the hollow cavity;

[0035] And / or, the first fixing member has a moving state in which it is rotationally connected to the supporting member and a stationary state in which it is fixed to the supporting member.

[0036] Beneficial effects: The welded parts will generate strong current during the welding process. By connecting the protective device to the welded parts through the anti-conductive parts, it is possible to prevent the welded parts from conducting electricity through the first fixing parts and affecting the normal use of the camera. By setting the first fixing parts and the supporting parts as a rotating connection, the camera's field of view can be adjusted to prevent the welding position of the welded parts from being inconsistent with the camera's field of view, making it impossible to monitor the welding position.

[0037] In a second aspect, the utility model also provides a welding system, comprising:

[0038] Welding parts;

[0039] The above-mentioned protection device, wherein the first fixing member of the protection device is fixedly connected to the welding member;

[0040] The camera is fixed on the supporting member.

[0041] Beneficial effect: Because the welding system includes a protective device, it has the same effect as the protective device and is not described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 It is a structural schematic diagram of a welding robot based on visual detection in the prior art;

[0044] Figure 2 This is a structural schematic diagram of a welding system according to an embodiment of the utility model;

[0045] Figure 3 A schematic structural diagram of a protective device according to an embodiment of the utility model from a first viewing angle;

[0046] Figure 4 It is a schematic diagram of a first partial structure of the protection device of an embodiment of the utility model;

[0047] Figure 5 A second partial structural schematic diagram of the protection device according to an embodiment of the utility model;

[0048] Figure 6 A third partial structural schematic diagram of the protection device according to an embodiment of the utility model;

[0049] Figure 7 This is a structural schematic diagram of a blocking member according to an embodiment of the utility model;

[0050] Figure 8 A schematic structural diagram of the protective device of an embodiment of the utility model from a second viewing angle;

[0051] Fig. 9 It is a schematic structural diagram of the protective device according to an embodiment of the utility model from a third viewing angle.

[0052] Description of reference numerals:

[0053] 01. Robot body; 02. Welding gun; 03. Mounting seat; 04. Camera probe; 05. Mounting ring; 06. Sleeve ring;

[0054] 1. Welding part; 2. First fixing part; 21. Mounting part; 22. Connecting part; 3. Support part; 31. Bottom plate; 32. First side plate; 33. Second side plate; 34. Third side plate; 4. Protective part; 5. Shielding assembly; 51. First shielding part; 511. Sliding part; 512. Shielding part; 52. Second shielding part; 53. Third shielding part; 6. Adjusting assembly; 61. Pressing plate; 62. Elastic part; 7. Second fixing part; 71. Opening; 72. Limiting part; 8. Blocking part; 81. Through hole; 9. Anti-conductive part. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0056] Combine the following Figures 2 to 9 , describing an embodiment of the utility model.

[0057] According to an embodiment of the utility model, on the one hand, a protective device is provided, which is suitable for being fixedly connected to a welding part 1, and includes: a first fixing part 2, suitable for being fixedly connected to the welding part 1; a support part 3, connected to the first fixing part 2, and suitable for placing a camera on the support part 3; a protective part 4, arranged below the support part 3, suitable for protecting the lens of the camera; a shielding component 5, arranged below the protective part 4, the extension direction of the shielding component 5 and the extension direction of the protective part 4 are at an angle to each other, and the shielding component 5 is at least arranged below the side of the protective part 4 close to the welding part 1, suitable for protecting the protective part 4.

[0058] By providing the first fixing member 2, the protective device can be conveniently fixed and installed on the welding part 1, and the installation is convenient without causing any interference to the use of the welding part 1; by providing the supporting member 3, the camera can be supported; by providing the protective member 4, the camera can be protected to prevent splashing welding slag from splashing onto the camera lens and damaging the lens, thereby increasing the maintenance cost; by providing the shielding component 5, it can be prevented that the strong light generated during the welding process can damage the camera lens, thereby causing inaccurate image recognition, and by providing the shielding component 5 below the side of the protective member 4 close to the welding part 1, it can prevent splashing welding slag from splashing onto the protective member 4 during the welding process and affecting the normal use of the camera, thereby improving the welding quality and welding efficiency of the welding part 1.

[0059] like Figure 2 As shown, the welding part 1 in this embodiment is a welding gun, and the camera can monitor the welding position in real time during the welding process of the welding gun.

[0060] like Figure 3 As shown, the first fixing member 2 in this embodiment includes a mounting member 21 and a connecting member 22, and the mounting member 21 and the connecting member 22 are separately arranged and connected and fixed. As a convertible embodiment, the mounting member 21 and the connecting member 22 can also be made of an integral molding.

[0061] like Figure 8As shown, the mounting member 21 in this embodiment has a mounting cavity, in which an anti-conductive member 9 is provided, and the anti-conductive member 9 is provided with a hollow cavity, in which the welding member 1 is fixedly connected. Specifically, the anti-conductive member 9 is a white steel structure, and the first fixing member 2 is a steel structure; the anti-conductive member 9 is bolted to the mounting member 21. The welding member 1 will generate a strong current during the welding process. By connecting the protective device to the welding member 1 through the anti-conductive member 9, the welding member 1 can be prevented from being conductive through the first fixing member 2, which affects the normal use of the camera. As a convertible embodiment, it is also possible that the first fixing member 2 is made of resin material or PC material, and the anti-conductive member 9 is not required. As a convertible embodiment, the anti-conductive member 9 can also be made of other insulating materials such as plastic or rubber. As a convertible embodiment, it is also possible that the first fixing member 2 is made of other metal materials such as iron. As a convertible embodiment, the anti-conductive member 9 can also be bonded or welded to the first fixing member 2.

[0062] like Figure 3 , Figure 8 As shown, the support member 3 is composed of a bottom plate 31, a first side plate 32, a second side plate 33 and a third side plate 34. The first side plate 32 is arranged on the side of the bottom plate 31 close to the welding member 1 and is connected to the connecting member 22. The second side plate 33 and the third side plate 34 are respectively arranged adjacent to the two sides of the first side plate 32. The bottom plate 31, the first side plate 32, the second side plate 33 and the third side plate 34 form a receiving cavity, and the camera is fixed in the receiving cavity. By providing the first side plate 32, the second side plate 33 and the third side plate 34, the camera can be prevented from loosening and falling during the welding process, which is safer when used. As a convertible embodiment, the second side plate 33 or the third side plate 34 may not be provided.

[0063] In this embodiment, the first fixing member 2 has a moving state in which it is rotationally connected to the supporting member 3 and a stationary state in which it is fixed to the supporting member 3. Fig. 9As shown, a central through hole is provided on one end of the connecting member 22 and the first side plate 32, and the connecting member 22 and the first side plate 32 are rotatably connected by setting pins in the two central through holes, and two semicircular slide grooves are provided on opposite sides of the central through hole on the connecting member 22 with the central through hole as the center of the circle, and a plurality of through holes are provided at positions corresponding to the slide grooves on the first side plate 32, and the connecting member 22 and the first side plate 32 are fixed by bolts provided in the through holes and the slide grooves. By setting the first fixing member 2 and the supporting member 3 to be rotatably connected, the camera's line of sight can be adjusted to prevent the welding position of the welding member 1 from being inconsistent with the camera's line of sight, and thus preventing the welding position from being unable to be monitored. As a convertible embodiment, it can also be that a plurality of through holes are provided on one end of the connecting member 22, and the plurality of through holes form a circular structure, and a plurality of protrusions matching the through holes are provided on the first side plate 32, and the protrusions are inserted into the through holes for fixing, so as to adjust the camera's line of sight. As a convertible implementation, there may be only one semicircular chute, or multiple chute may be provided, and the multiple chute forms a circular structure.

[0064] Accordingly, the other end of the connecting member 22 in this embodiment has a rotationally connected motion state and a fixedly connected static state with the mounting member 21, so as to further adjust the camera's field of view. As a convertible implementation, the other end of the connecting member 22 can be fixedly connected to the mounting member 21, and the camera's field of view can be adjusted only by the rotational connection between one end of the connecting member 22 and the supporting member 3.

[0065] The protective member 4 in this embodiment is an acrylic plate. The acrylic plate has good light transmittance, high hardness and long service life. As a convertible implementation, the protective member 4 can also be made of other light-transmitting materials such as PC board.

[0066] like Figure 3 As shown, the shielding assembly 5 in this embodiment includes: a first shielding portion 51, which is arranged on the side of the protective member 4 close to the welding member 1; a second shielding portion 52 and a third shielding portion 53, which are respectively connected to the two sides of the first shielding portion 51, and the extension direction of the second shielding portion 52 and the third shielding portion 53 is different from the extension direction of the first shielding portion 51. Specifically, the second shielding portion 52 and the third shielding portion 53 are both flat plate structures; the extension direction of the second shielding portion 52 and the third shielding portion 53 is perpendicular to the extension direction of the first shielding portion 51. By providing the first shielding portion 51, the second shielding portion 52 and the third shielding portion 53, the protective member 4 can be protected from multiple angles, and the welding slag is not easy to splash onto the protective member 4. As a convertible embodiment, it is also possible to only provide the first shielding portion 51, without providing the second shielding portion 52 and the third shielding portion 53.

[0067] The height of the first shielding portion 51 in this embodiment is adjustable in the vertical direction. Figure 8-Figure 9 As shown, the first shielding part 51 includes a sliding member 511 and a shielding member 512, the shielding member 512 is fixedly connected to the second shielding part 52 and the third shielding part 53, and the sliding member 511 is slidably connected to the shielding member 512. Among them, the sliding member 511 and the shielding member 512 are both flat plate structures. Specifically, a slide groove is provided on the sliding member 511 and the shielding member 512, and after adjusting the installation position of the sliding member 511, bolts are inserted into the slide groove for fixed connection. By setting the height of the first shielding part 51 to be adjustable, it can be adjusted according to the distance between the protective device and the welding head of the welding part 1, and the protective member 4 is further protected to prevent the first shielding part 51 from being unable to effectively shield when the distance between the protective device and the welding head of the welding part 1 is far. As a convertible embodiment, a plurality of through holes may be respectively provided on the sliding member 511 and the shielding member 512 to cooperate with bolts for height adjustment, or a sliding groove may be provided on the sliding member 511 and a protrusion may be provided on the shielding member 512, and the protrusion may be slidably connected in the sliding groove, or a sliding groove may be provided on the sliding member 511 and the shielding member 512 may be directly slidably connected in the sliding groove.

[0068] The shielding component 5 in this embodiment is a brass part. The shielding component 5 is made of brass, and the welding slag has poor adhesion to the brass structure, so the welding slag is not easy to adhere to the shielding component 5, and even if it adheres to the shielding component 5, it is easy to clean. As a convertible implementation method, the shielding component 5 can also be made of other materials with a relatively smooth surface, and there is no excessive restriction here.

[0069] In this embodiment, an adjustment component 6 is provided between the support member 3 and the protective member 4, and the adjustment component 6 is suitable for adjusting the distance between the support member 3 and the protective member 4. By providing the adjustment component 6, the protective member 4 can be pressed and fixed firmly, and it is also convenient to take out the protective member 4 when replacing the protective member 4.

[0070] like Figure 4 As shown, the adjustment component 6 includes: a pressing plate 61, which is arranged between the support member 3 and the protective member 4; an elastic member 62, which is arranged between the support member 3 and the pressing plate 61, and the elastic member 62 squeezes the pressing plate 61 to fix the protective member 4. By setting the pressing plate 61, the force is evenly applied, which can prevent the adjustment component 6 from causing stress concentration on the protective member 4, resulting in cracking, and shortening the service life of the protective member 4; by setting the elastic member 62, it is possible to apply pressure to the pressing plate 61, thereby pressing the protective member 4, so that the protective member 4 is not easy to move, and the pressing plate 61 can be lifted upward, thereby leaving appropriate space for convenient removal of the protective member 4. As a convertible embodiment, only the elastic member 62 can be set, one end of the elastic member 62 abuts against the support member 3, and the other end abuts against the protective member 4. As a convertible embodiment, it is also possible that the adjustment component 6 is a lifting mechanism that can adjust the distance between the support member 3 and the protective member 4 in the up and down directions.

[0071] Among them, the pressure plate 61 is made of white steel plate, and the elastic member 62 is made of spring. When replacing the protective member 4, the operator lifts up the end of the pressure plate 61 with one hand, pulls out the protective member 4 with the other hand, and replaces the new protective member 4. The pressure plate 61 is made of white steel. The surface of the white steel material is smooth and has low friction. It is not easy to scratch the protective member 4, which can increase the service life of the protective member 4. As a convertible embodiment, the elastic member 62 can also be made of silicone or rubber, and there are no excessive restrictions here. As a convertible embodiment, the pressure plate 61 can also be made of resin or PC material, and there are no excessive restrictions here.

[0072] like Figure 5 As shown, the protective device includes: a second fixing member 7, fixedly connected to the bottom of the support member 3, and a receiving cavity is provided on the second fixing member 7, and the protective member 4 and the adjustment assembly 6 are arranged in the receiving cavity. By providing the second fixing member 7, the protective member 4 can be placed in the receiving cavity without being connected to other structures, so that the protective member 4 is easy to replace.

[0073] like Figure 5-Figure 6 As shown, an opening 71 is provided at one end of the second fixing member 7, and the opening 71 is connected to the accommodating cavity. The protective device includes: a blocking member 8, which is provided at the opening 71, and the blocking member 8 has a first state of opening the opening 71 and a second state of closing the opening 71. Specifically, the blocking member 8 is a flat plate structure. By providing the opening 71, it is convenient to replace the protective member 4 through the opening 71; by providing the blocking member 8, the opening 71 can be closed, thereby preventing the protective member 4 from falling from the opening 71. As a convertible embodiment, the blocking member 8 may not be provided.

[0074] like Figure 6-Figure 8 As shown, one end of the blocking member 8 is rotatably connected to the second fixing member 7. Specifically, the second fixing member 7 and the blocking member 8 are both provided with through holes, and pins are arranged in the through holes to achieve rotational connection, thereby facilitating the opening 71. As a convertible embodiment, the blocking member 8 and the second fixing member 7 can also be connected by snapping to achieve rotational connection.

[0075] like Figure 6-Figure 8As shown, both ends of the blocking member 8 are fixed to the second fixing member 7 to form the second state. Specifically, a limiting member 72 is provided on the second fixing member 7, and a through hole 81 is provided on the blocking member 8 to cooperate with the limiting member 72. The through hole 81 is clamped on the limiting member 72 and is suitable for closing the opening 71 to form the second state. Further, the limiting member 72 adopts a spring top screw, and two are provided, which are symmetrically arranged on the opposite sides of the second fixing member 7, and the round balls of the two spring top screws are inserted into the through hole 81 at the same time to form a fixed connection. By adopting the limiting member 72, the blocking member 8 can be closed during the welding process, and it is not easy to open automatically, causing the protective member 4 to fall out. As a convertible embodiment, it is also possible to fix the second fixing member 7 only at the other end of the blocking member 8. As a convertible embodiment, the limiting member 72 can also be a relatively arranged protrusion, and the two protrusions are inserted into the through hole 81 at the same time for fixing.

[0076] According to an embodiment of the present utility model, on the other hand, a welding system is provided, comprising: a welding part 1; the above-mentioned protection device, wherein the first fixing part 2 of the protection device is fixedly connected to the welding part 1; and a camera fixed to the support part 3.

[0077] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A protective device, suitable for being fixedly connected to a weldment (1), characterized in that: include: A first fixing member (2), adapted to be fixedly connected to the welding member (1); A support member (3) connected to the first fixing member (2), wherein the support member (3) is suitable for placing a camera; A protective member (4), disposed below the support member (3), suitable for protecting the lens of the camera; A shielding component (5) is arranged below the protective member (4); an extension direction of the shielding component (5) and an extension direction of the protective member (4) form an angle with each other; the shielding component (5) is at least arranged below a side of the protective member (4) close to the welding member (1), and is suitable for protecting the protective member (4).

2. The protection device according to claim 1, characterized in that: The shielding component (5) comprises: A first shielding portion (51) is provided on a side of the protective member (4) close to the welding member (1); The second shielding portion (52) and the third shielding portion (53) are respectively connected adjacently to two sides of the first shielding portion (51); the extension direction of the second shielding portion (52) and the third shielding portion (53) is different from the extension direction of the first shielding portion (51).

3. The protection device according to claim 2, characterized in that: The setting height of the first shielding portion (51) is adjustable along the vertical direction; And / or, the shielding component (5) is a brass part.

4. The protection device according to any one of claims 1 to 3, characterized in that: An adjustment component (6) is provided between the support member (3) and the protection member (4), and the adjustment component (6) is suitable for adjusting the distance between the support member (3) and the protection member (4).

5. The protection device according to claim 4, characterized in that: The regulating component (6) comprises: A pressure plate (61) is arranged between the support member (3) and the protective member (4); An elastic member (62) is disposed between the support member (3) and the pressing plate (61), and the elastic member (62) presses the pressing plate (61) to fix the protective member (4).

6. The protection device according to claim 4, characterized in that: The protection device comprises: The second fixing member (7) is fixedly connected to the lower part of the supporting member (3); the second fixing member (7) is provided with a receiving cavity; the protective member (4) and the adjusting assembly (6) are arranged in the receiving cavity.

7. The protection device according to claim 6, characterized in that: One end of the second fixing member (7) is provided with an opening (71), and the opening (71) is communicated with the accommodating cavity.

8. The protection device according to claim 7, characterized in that: The protection device comprises: A blocking member (8) is arranged at the opening (71), and the blocking member (8) has a first state for opening the opening (71) and a second state for closing the opening (71).

9. The protection device according to any one of claims 1 to 3, characterized in that: The first fixing member (2) has an installation cavity, an anti-conductive member (9) is arranged in the installation cavity, the anti-conductive member (9) has a hollow cavity, and the welding member (1) is fixedly connected in the hollow cavity; And / or, the first fixing member (2) has a moving state in which it is rotationally connected to the supporting member (3) and a stationary state in which it is fixed to the supporting member (3).

10. A welding system, characterized in that: include: Welding parts (1); The protective device according to any one of claims 1 to 9, wherein the first fixing member (2) of the protective device is fixedly connected to the welding member (1); A camera is fixed on the support member (3).

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