Anti-splashing device for resistance spot welding

Abstract

The utility model belongs to the technical field of welding tools, and discloses an anti-splashing device for resistance spot welding, which comprises a power mechanism and a supporting mechanism arranged on the periphery of the power mechanism and used for supporting the whole, shielding a welding working area front and back and collecting welding slag, and the power mechanism is arranged in the middle of the top of the supporting mechanism. The power mechanism is provided with a welding mechanism which is used for welding workpieces and circumferentially covering a welding working area to adsorb welding slag by 360 degrees, the power mechanism comprises two servo motors which are symmetrically arranged front and back, and the output ends of the servo motors are provided with right-hand and left-hand thread lead screws. According to the anti-splashing device for resistance spot welding, the overall shielding effect is improved through the arrangement that the circumferential cage cover is matched with the welding working area of the front cage cover and the welding working area of the rear cage cover, the welding slag is cleaned more thoroughly through the arrangement that comprehensive sealing is matched with 360-degree circumferential welding slag adsorption, and the anti-splashing effect is improved through the arrangement that the welding working area is completely shielded. Welding slag splashing is avoided, and the working safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding tooling, in particular to an anti-splash device for resistance spot welding. Background Art

[0002] Resistance spot welding is a method of combining the workpieces to be welded, applying pressure to them through electrodes, and processing them into a molten or plastic state by using the resistance heat generated by the current flowing through the contact surface and adjacent areas of the workpieces to form a metal bond. It has the advantages of short heating time, no need for fillers and welding materials such as welding rods or wires, simple operation and high production efficiency. The metal spatter generated by the high welding current during resistance spot welding not only affects the welding working environment, but also may cause damage to equipment and welders, and even cause fire risks. In addition, when welding coated steel plates, such as hot-dip galvanized steel plates, the zinc layer will volatilize and form dust, which will seriously affect the health of welders even under protective conditions.

[0003] In contrast, the Chinese patent with announcement number CN218311419U discloses a splash-proof device for resistance spot welding, including a support plate, a side plate, a panel, a splash-proof plate, an adsorption device, a fireproof cloth and a clamping mechanism, wherein the support plate is fixedly connected to the main casing of the spot welding machine through the clamping mechanism, the side plates are in two pieces, which are arranged on both sides of the support plate and are rotatably connected to the support plate, the panel is arranged relative to the support plate and is rotatably connected to one side plate and is connected to the other side plate by a snap, the splash-proof plates are in three pieces, which are rotatably connected to the upper parts of the side plates and the panel respectively and rest on the main casing of the spot welding machine, the adsorption device is composed of a grid frame, a filter plate, a debris trough and a dust suction pipe, wherein the grid frame is fixedly arranged above the support plate, a filter plate is provided on the side of the grid frame close to the upper electrode arm, a dust suction pipe is provided on the side away from the upper electrode arm, a debris trough is provided below the filter plate, and the debris trough is located on the inner side of the support plate.

[0004] However, the above patent can only shield the welding work area on four sides when welding the workpiece, and cannot ensure complete closure. The shielding effect is not good enough, and welding slag can only be collected on one side. There is still residual welding slag splashing, which may injure workers and damage equipment. Therefore, a new device needs to be designed. Utility Model Content

[0005] The utility model aims to provide a splash prevention device for resistance spot welding to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A spatter prevention device for resistance spot welding comprises a power mechanism and a support mechanism arranged on the periphery of the power mechanism for supporting the whole and shielding a welding working area from front to back and collecting welding slag. The power mechanism is arranged in the middle of the top of the support mechanism, and a welding mechanism is installed on the power mechanism for welding workpieces and circumferentially covering the welding working area 360° to absorb welding slag.

[0008] The support mechanism comprises a welding machine box, four supporting legs are symmetrically arranged at the bottom of the welding machine box, a welding slag collecting groove is opened in the middle of the top of the welding machine box, two supporting plates are symmetrically arranged on both sides of the welding slag collecting groove, and two fireproof curtains are symmetrically arranged between the supporting plates;

[0009] The welding mechanism includes two symmetrically arranged movable shielding covers, an air suction pump is arranged on one side of the movable shielding cover, a telescopic hose is arranged on the top of the air suction pump, a filter adsorption cover is arranged at one end of the telescopic hose, the filter adsorption cover is installed inside the movable shielding cover, and two electrode arms are arranged opposite to each other inside the filter adsorption cover.

[0010] Furthermore: the power mechanism includes two servo motors arranged symmetrically front and back, the output end of the servo motor is equipped with a positive and negative threaded screw, the end of the positive and negative threaded screw is provided with a top plate, and two limit support rods are symmetrically arranged front and back above the positive and negative threaded screw.

[0011] Furthermore: the limiting support rod is bolted to the support plate, and the movable shielding cover is slidably connected to the limiting support rod.

[0012] Furthermore: the movable shielding cover is threadedly connected to the forward and reverse threaded screw rod, the forward and reverse threaded screw rod is connected to the top plate bearing, and the forward and reverse threaded screw rod is made of 45# steel.

[0013] Furthermore: the support plate is connected to the welding machine box by bolts, and the fireproof curtain is connected to the support plate by bolts.

[0014] Furthermore: the telescopic hose passes through the movable shielding cover and is connected to the filter adsorption cover clamp, and the air suction pump is connected to the telescopic hose clamp.

[0015] Furthermore: the filter adsorption cover is connected to the movable shield cover by bolts, and the electrode arm passes through the filter adsorption cover and is connected to the movable shield cover by bolts.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The overall shielding effect is improved by combining the circumferential shielding with the front and rear shielding of the welding work area;

[0018] 2. Through the comprehensive closure and 360° circular adsorption of welding slag, the cleaning of welding slag is more thorough;

[0019] 3. By completely shielding the welding work area, welding slag splashing is avoided and work safety is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a splash-proof device for resistance spot welding according to the utility model;

[0021] Figure 2 This is an axonometric diagram of a power mechanism of a splash-proof device for resistance spot welding described in the utility model;

[0022] Figure 3 This is an axonometric diagram of a support mechanism of a splash-proof device for resistance spot welding according to the utility model;

[0023] Figure 4 The utility model is a schematic diagram of the welding mechanism structure of an anti-splash device for resistance spot welding.

[0024] In the accompanying drawings: 101, servo motor; 102, forward and reverse threaded screw; 103, top plate; 104, limit support rod; 201, welding machine box; 202, support leg; 203, welding slag collection trough; 204, support plate; 205, fireproof curtain; 301, movable shielding cover; 302, suction pump; 303, telescopic hose; 304, filter adsorption cover; 305, electrode arm. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 4 A spatter prevention device for resistance spot welding includes a power mechanism and a support mechanism arranged on the periphery of the power mechanism for supporting the whole and shielding the welding working area front and back and collecting welding slag. The power mechanism is arranged in the middle of the top of the support mechanism, and a welding mechanism is installed on the power mechanism for welding workpieces and circumferentially covering the welding working area 360° to absorb welding slag.

[0027] In this embodiment: the power mechanism includes two servo motors 101 symmetrically arranged front and back, a positive and negative threaded screw 102 is installed at the output end of the servo motor 101, a top plate 103 is arranged at the end of the positive and negative threaded screw 102, two limit support rods 104 are symmetrically arranged front and back above the positive and negative threaded screw 102, the limit support rod 104 is bolted to the support plate 204, the movable shielding cover 301 is slidably connected to the limit support rod 104, the positive and negative threaded screw 102 is connected to the top plate 103 with a bearing, the positive and negative threaded screw 102 is made of 45# steel, the rotation of the servo motor 101 drives the positive and negative threaded screw 102 to rotate under the fixed support of the top plate 103, and pushes the two movable shielding covers 301 to approach each other along the limit support rod 104 on the top of the support plate 204 to shield the circumferential surface of the welding working area;

[0028] In this embodiment: the support mechanism includes a welding machine box 201, four support legs 202 are symmetrically arranged at the bottom of the welding machine box 201, a welding slag collection groove 203 is opened in the middle of the top of the welding machine box 201, two support plates 204 are symmetrically arranged on both sides of the welding slag collection groove 203, and two fireproof curtains 205 are symmetrically arranged between the support plates 204. The support plates 204 are bolted to the welding machine box 201, and the fireproof curtains 205 are bolted to the support plates 204. The support legs 202 support the welding machine box 201, and the fireproof curtains 205 shield the front and back of the welding work area. The support plates 204 support the limit support rods 104;

[0029] In this embodiment, the welding mechanism includes two symmetrically arranged mobile shielding covers 301, an air suction pump 302 is arranged on one side of the mobile shielding cover 301, a telescopic hose 303 is arranged on the top of the air suction pump 302, a filter adsorption cover 304 is arranged on one end of the telescopic hose 303, the filter adsorption cover 304 is installed inside the mobile shielding cover 301, two electrode arms 305 are arranged opposite to each other inside the filter adsorption cover 304, the mobile shielding cover 301 is threadedly connected with the positive and negative threaded screw rod 102, and the telescopic hose 303 passes through the mobile shielding cover 301 and the filter adsorption cover 304. The adsorption cover 304 is connected by a clamp, the suction pump 302 is connected by a clamp to the telescopic hose 303, the filter adsorption cover 304 is connected by bolts to the movable shielding cover 301, the electrode arm 305 penetrates the filter adsorption cover 304 and is connected by bolts to the movable shielding cover 301, the movable shielding cover 301 shields the circumferential surface of the welding working area, the suction pump 302 draws air through the telescopic hose 303 and uses the filter adsorption cover 304 to absorb the welding gas generated in the welding working area and filters the welding slag on the filter adsorption cover 304, and the two electrode arms 305 spot weld the workpiece.

[0030] Working principle: The welding machine box 201 is supported by the support legs 202, and the workpiece passes through the fireproof curtain 205 and enters the mobile shielding cover 301. The welding machine box 201 supports the servo motor 101 to rotate and drive the positive and negative threaded screws 102 to rotate under the fixed support of the top plate 103, pushing the two mobile shielding covers 301 to approach each other along the limit support rods 104 on the top of the support plate 204 to shield the circumferential surface of the welding working area and drive the two electrode arms 305 to spot weld the workpiece. The suction pump 302 sucks air through the telescopic hose 303 and uses the filter adsorption cover 304 to absorb the welding gas generated in the welding working area and filter the welding slag on the filter adsorption cover 304. After welding is completed, the two filter adsorption covers 304 are separated, and the welding slag falls into the welding slag collection tank 203 for easy cleaning.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A splash prevention device for resistance spot welding, comprising a power mechanism, characterized in that: It also includes a support mechanism arranged on the periphery of the power mechanism for supporting the whole and shielding the welding working area from front to back and collecting welding slag, the power mechanism is arranged in the middle of the top of the support mechanism, and a welding mechanism for welding workpieces and circumferentially covering the welding working area 360° to absorb welding slag is installed on the power mechanism; The support mechanism comprises a welding machine box (201), four support legs (202) are symmetrically arranged at the bottom of the welding machine box (201), a welding slag collection groove (203) is opened in the middle of the top of the welding machine box (201), two support plates (204) are symmetrically arranged on both sides of the welding slag collection groove (203), and two fireproof curtains (205) are symmetrically arranged between the support plates (204); The welding mechanism comprises two symmetrically arranged movable shielding covers (301), one side of the movable shielding cover (301) is provided with an air suction pump (302), the top of the air suction pump (302) is provided with a telescopic hose (303), one end of the telescopic hose (303) is provided with a filter adsorption cover (304), the filter adsorption cover (304) is installed inside the movable shielding cover (301), and two electrode arms (305) are oppositely arranged inside the filter adsorption cover (304).

2. The anti-splash device for resistance spot welding according to claim 1, characterized in that: The power mechanism comprises two servo motors (101) symmetrically arranged front and back, a positive and negative threaded screw rod (102) is installed at the output end of the servo motor (101), a top plate (103) is arranged at the end of the positive and negative threaded screw rod (102), and two limit support rods (104) are symmetrically arranged front and back above the positive and negative threaded screw rod (102).

3. The anti-splash device for resistance spot welding according to claim 2, characterized in that: The position-limiting support rod (104) is bolted to the support plate (204), and the movable shielding cover (301) is slidably connected to the position-limiting support rod (104).

4. The anti-splash device for resistance spot welding according to claim 2, characterized in that: The movable shielding cover (301) is threadedly connected to the forward and reverse threaded screw rod (102), the forward and reverse threaded screw rod (102) is bearing-connected to the top plate (103), and the forward and reverse threaded screw rod (102) is made of 45# steel.

5. The anti-splash device for resistance spot welding according to claim 1, characterized in that: The support plate (204) is connected to the welding machine box (201) by bolts, and the fireproof curtain (205) is connected to the support plate (204) by bolts.

6. The anti-splash device for resistance spot welding according to claim 1, characterized in that: The telescopic hose (303) passes through the movable shielding cover (301) and is connected to the filtering adsorption cover (304) by a clamp, and the suction pump (302) is connected to the telescopic hose (303) by a clamp.

7. The anti-splash device for resistance spot welding according to claim 1, characterized in that: The filter adsorption cover (304) is bolted to the movable shield cover (301), and the electrode arm (305) passes through the filter adsorption cover (304) and is bolted to the movable shield cover (301).

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