Light shield for welding machine

Abstract

A light shield for a welding machine belongs to the technical field of shielding of welding machines and comprises a connecting plate, a through opening is formed in the center of the connecting plate in a penetrating mode, inverted-L-shaped limiting plates fixedly connected with the connecting plate are installed on the left side and the right side of the through opening respectively, and a clamping device is installed between the two inverted-L-shaped limiting plates. The clamping device is used for clamping and fixing the connecting plate and a welding gun, inverted-convex-shaped grooves are formed in the four corners of the upper surface of the connecting plate in a penetrating mode, cooling fans are fixedly installed in the inverted-convex-shaped grooves, a shading frame is vertically installed on the outer surface of the connecting plate in a sliding mode, and an air inlet is formed in the rear surface of the shading frame in a penetrating mode. Air circulation in the shading frame can be accelerated, so that heat generated in the welding process can be dissipated quickly, the temperature in the shading frame is prevented from being too high, and the adverse effect on the service life of a welding gun is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding machine covers, and particularly relates to a light shield for a welding machine. Background Art

[0002] Welding is crucial in industrial production, but the intense light generated during the process, such as arc light, contains ultraviolet (UV), infrared (IR), and high-intensity visible light, which can be harmful to workers' eyes and skin. Long-term exposure can lead to occupational diseases such as photoelectric dermatitis and ophthalmitis, threatening vision health and workplace safety.

[0003] Existing shading methods use a shield around the welding gun to block light. However, the heat generated during welding cannot be quickly dissipated, and instead accumulates within the shielding area, causing the welding gun and surrounding components to be exposed to high temperatures for extended periods. This not only accelerates the aging and damage of the welding gun itself, reducing its service life, but can also affect the performance and stability of the internal electronic components and mechanical structure of the welding gun. Therefore, a shading cover for a welding machine is provided to address this technical problem. Utility Model Content

[0004] The light shield used in welding machines in the prior art has the problem of rapidly dissipating the heat generated during welding, which affects the service life of the welding gun itself. The utility model provides a light shield for a welding machine, which can not only be quickly clamped and fixed to the outer surface of the welding gun through a clamping device, but also can accelerate the air circulation in the light shield frame during the welding process by using a cooling fan embedded in the connecting plate in conjunction with the air inlet provided on the rear surface of the light shield frame, thereby helping to quickly dissipate the heat generated during welding and prevent the temperature inside the light shield frame from being too high, thereby avoiding adverse effects on the service life of the welding gun. This effectively solves the problem of the light shield used in welding machines in the prior art, which has the problem of rapidly dissipating the heat generated during welding, which affects the service life of the welding gun itself. The specific technical solution is as follows:

[0005] A light shield for a welding machine comprises a connecting plate, a through opening being formed through the center of the connecting plate, and inverted L-shaped limit plates fixedly connected to the connecting plate being installed on the left and right sides of the through opening, respectively; a clamping device is installed between the two inverted L-shaped limit plates, and the clamping device is used to clamp and fix the connecting plate to the welding gun; inverted convex grooves are formed through the four corners of the upper surface of the connecting plate, and cooling fans are fixedly installed in the inverted convex grooves; a light shielding frame is vertically slidably installed on the outer surface of the connecting plate, and an air inlet is formed through the rear surface of the light shielding frame.

[0006] In the above technical solution, the clamping device includes two fixed plates and two clamping plates. The two fixed plates are symmetrically fixed on the upper surface of the connecting plate in the front and rear directions. The clamping plates are slidably installed between the two inverted L-shaped limit plates. The outer surfaces of the clamping plates are fixedly installed with U-shaped rods. The U-shaped rods are slidably connected to the corresponding fixed plates, and springs are fixedly installed between the clamping plates and the corresponding fixed plates.

[0007] In the above technical solution, two ear blocks are symmetrically fixedly installed on the inner side wall of the light shielding frame, and a T-shaped hanging rod is fixedly installed on the upper surface of each ear block. The T-shaped hanging rod is slidably connected to the connecting plate.

[0008] In the above technical solution, an observation window is provided through the front surface of the light-shielding frame, and a dark protective glass is fixedly installed in the observation window.

[0009] In the above technical solution, arc-shaped grooves are provided on the opposite surfaces of the two clamping plates.

[0010] Compared with the prior art, the utility model of a light shield for a welding machine has the following beneficial effects:

[0011] The utility model can not only quickly clamp and fix the light shield to the outer surface of the welding gun through the clamping device, but also accelerate the air circulation in the light shield frame by utilizing the cooling fan embedded in the connecting plate and the air inlet provided on the rear surface of the light shield frame during the welding process, thereby helping to quickly dissipate the heat generated during the welding process, preventing the temperature inside the light shield frame from being too high, and effectively avoiding adverse effects on the service life of the welding gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the top structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0014] Figure 3 This is a schematic diagram of the connecting plate structure of the present utility model.

[0015] Figure 4 This is a schematic structural diagram of the light-shielding frame of the present utility model.

[0016] Figure 5 This is a schematic diagram of the splint structure of the present utility model.

[0017] Figure 6 This is a schematic diagram of the structure of the utility model when connected to a welding gun.

[0018] Figure 1-6Among them: 1. Connecting plate; 11. Through port; 12. Inverted L-shaped limit plate; 13. Inverted convex groove; 2. Clamping device; 21. Fixing plate; 22. Clamping plate; 23. U-shaped rod; 24. Spring; 3. Shading frame; 31. Ear block; 32. T-shaped lifting rod; 33. Air inlet; 34. Observation window; 341. Dark protective glass; 4. Cooling fan. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In this embodiment, front, back, left, right, up and down are represented by Figure 1 Describes the datum. Figures 1-6 , the utility model provides a technical solution:

[0021] A light shield for a welding machine includes a connecting plate 1, a through opening 11 is opened through the center of the connecting plate 1, and an inverted L-shaped limit plate 12 fixedly connected to the connecting plate 1 is installed on the left and right sides of the through opening 11. A clamping device 2 is installed between the two inverted L-shaped limit plates 12, and the clamping device 2 is used to clamp and fix the connecting plate 1 and the welding gun. Inverted convex grooves 13 are opened through the four corners of the upper surface of the connecting plate 1, and a cooling fan 4 is fixedly installed in the inverted convex grooves 13. A light shielding frame 3 is vertically slidably installed on the outer surface of the connecting plate 1, and an air inlet 33 is opened through the rear surface of the light shielding frame 3.

[0022] It should be noted that the clamping device 2 includes two fixed plates 21 and two clamping plates 22. The two fixed plates 21 are fixedly installed on the upper surface of the connecting plate 1 symmetrically in front and back. The clamping plates 22 are slidably installed between the two inverted L-shaped limit plates 12. The outer surfaces of the clamping plates 22 are fixedly installed with U-shaped rods 23. The U-shaped rods 23 are slidably connected to the corresponding fixed plates 21. Springs 24 are fixedly installed between the clamping plates 22 and the corresponding fixed plates 21.

[0023] When in use, the U-shaped rod 23 is pulled outward synchronously to move the two clamping plates 22 outward, so that the position of the through-hole 11 of the connecting plate 1 is opened. Afterwards, the through-hole 11 is used to put the connecting plate 1 on the outside of the welding gun, and the connecting plate 1 is adjusted to a suitable installation height so that the bottom of the light shielding frame 3 is slightly lower than the lower surface of the welding gun in a naturally hanging state. Then, the hand controlling the U-shaped rod 23 is released, and the clamping plate 22 moves inward under the action of the spring 24, thereby clamping the connecting plate 1 to the outer surface of the welding gun. When the welding gun is working, the welding gun moves downward with the help of the lifting structure of the welding machine body, and during the downward movement, the connecting plate 1 and the light shielding frame are driven 3 moves downward. Since the bottom of the light shielding frame 3 is lower than the welding gun, the lower surface of the light shielding frame 3 contacts the material to be welded before the welding gun starts welding, which can isolate the welding area from the surrounding environment in advance, and minimize the damage to surrounding personnel and equipment caused by strong light, sparks, and spatters generated during the welding process. During the welding process, the cooling fan 4 can be turned on to accelerate the air circulation in the light shielding frame 3 through the air inlet 33 and the inverted convex groove 13, thereby helping to quickly dissipate the heat generated during the welding process and prevent the internal temperature of the light shielding frame 3 from being too high, thereby effectively avoiding adverse effects on the service life of the welding gun.

[0024] In addition, combined Figure 2 、 Figure 3 and Figure 4 As shown, two ear blocks 31 are symmetrically fixedly installed on the inner side wall of the light-shielding frame 3, and a T-shaped lifting rod 32 is fixedly installed on the upper surface of the ear block 31. The T-shaped lifting rod 32 is slidably connected to the connecting plate 1. The light-shielding frame 3 is vertically slidably connected to the connecting plate 1 through the T-shaped lifting rod 32. The T-shaped lifting rod 32 can prevent the light-shielding frame 3 from being separated from the connecting plate 1 when it naturally hangs down.

[0025] In addition, during welding, in order to facilitate observation of the welding situation in the light shielding frame 3, as shown in FIG. Figure 2 As shown, the front surface of the light shielding frame 3 is penetrated by an observation window 34, and dark protective glass 341 is fixedly installed within the observation window 34. This glass absorbs and filters out most of the strong light generated during the welding process, especially ultraviolet and infrared rays that are harmful to the human eye, while allowing a certain proportion of visible light to pass through. From the inside, the strong light is weakened by the glass's absorption and blocking effect, making it difficult for it to directly penetrate. From the outside, however, due to the relatively weak external ambient light, the visible light that passes through the glass is sufficient for the observer to clearly see the welding scene inside.

[0026] Finally, in order to increase the contact area between the clamping plate 22 and the welding gun and enhance the installation effect between the connecting plate 1 and the welding gun, as shown in FIG. Figure 2As shown, arc grooves are provided on the opposite surfaces of the two clamping plates 22. When the connecting plate 1 is installed between the welding gun, the outer surface of the welding gun fits into the arc grooves, which can increase the contact area during clamping and thus enhance the clamping and fixing effect.

Claims

1. A light shield for a welding machine, comprising a connecting plate (1), characterized in that: A through opening (11) is provided at the center of the connecting plate (1), and an inverted L-shaped limiting plate (12) fixedly connected to the connecting plate (1) is respectively installed on the left and right sides of the through opening (11), and a clamping device (2) is installed between the two inverted L-shaped limiting plates (12), and the clamping device (2) is used to clamp and fix the connecting plate (1) and the welding gun; The four corners of the upper surface of the connecting plate (1) are all provided with inverted convex grooves (13), and the cooling fans (4) are fixedly installed in the inverted convex grooves (13); A light shielding frame (3) is vertically slidably mounted on the outer surface of the connecting plate (1), and an air inlet (33) is provided through the rear surface of the light shielding frame (3).

2. A light shield for a welding machine according to claim 1, characterized in that: The clamping device (2) comprises two fixed plates (21) and two clamping plates (22), the two fixed plates (21) are fixedly mounted on the upper surface of the connecting plate (1) in a front-to-back symmetrical manner, the clamping plates (22) are slidably mounted between the two inverted L-shaped limit plates (12), the outer surfaces of the clamping plates (22) are fixedly mounted with U-shaped rods (23), the U-shaped rods (23) are slidably connected to the corresponding fixed plates (21), and springs (24) are fixedly mounted between the clamping plates (22) and the corresponding fixed plates (21).

3. A light shield for a welding machine according to claim 2, characterized in that: Two ear blocks (31) are symmetrically fixedly mounted on the inner side wall of the light shielding frame (3), and a T-shaped hanging rod (32) is fixedly mounted on the upper surface of each ear block (31). The T-shaped hanging rod (32) is slidably connected to the connecting plate (1).

4. The light shield for a welding machine according to claim 3, characterized in that: An observation window (34) is provided through the front surface of the light-shielding frame (3), and a dark protective glass (341) is fixedly installed in the observation window (34).

5. The light shield for a welding machine according to claim 2, characterized in that: The opposite surfaces of the two clamping plates (22) are both provided with arc-shaped grooves.

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