Welding device and welding process for explosion-proof box

Abstract

The invention relates to the technical field of welding, in particular to a welding device and process for an explosion-proof box, and relates to the technical field of welding, the welding device comprises a workbench, a welding gun, an air blowing pipe and a sound wave directional emitter, the explosion-proof box is placed on the upper end face of the workbench, the welding gun is slidably mounted on the workbench, the workbench is further provided with a driving assembly, and the air blowing pipe is mounted on the welding gun; one end of the air blowing pipe directly faces a welding seam, the other end of the air blowing pipe is communicated with the air source, the sound wave directional emitter is installed on the welding gun, the output end of the sound wave directional emitter directly faces the welding seam, and the sound wave directional emitter is located on the side, away from the welding gun, of the air blowing pipe and located at the foremost end of the moving direction of the welding gun. The sound wave directional emitter can directionally emit sound waves and receive the sound waves so as to detect whether small particles exist in the welding seam or not and enable the small particles to vibrate. The explosion-proof box has the advantages that dust and small particles in a welding seam are reduced as much as possible, and therefore the welding quality and the production quality of the whole explosion-proof box are improved.

Description

Technical Field

[0001] The present application relates to the technical field of welding, and in particular to a welding device and a welding process for an explosion-proof box. Background Art

[0002] An explosion-proof box is a special box used to install instrument equipment. It can protect equipment from explosions and fires in dangerous environments. It is mainly used in places where flammable and explosive gases or dust exist, such as petrochemicals, coal mines, aerospace and other fields, to ensure the safety and stability of industrial production.

[0003] In the process of producing explosion-proof boxes, welding is an indispensable step. The welding device in the prior art usually includes a workbench for placing the explosion-proof box, a welding gun slidably mounted on the workbench, and a driving assembly for driving the welding gun to move. When it is necessary to weld the weld of the explosion-proof box, first align the output end of the welding gun with the weld, and then start the driving assembly to drive the welding gun to move along the length direction of the weld, so that the welding gun can weld the entire weld of the explosion-proof box.

[0004] However, in the above technology, since there will be dust and tiny particles in the space of the welding site, it is inevitable that there will be dust and tiny particles in the welds on the explosion-proof box. These dust and tiny particles are mixed in the molten pool at the weld, which will reduce the connection stability between the two plates, resulting in the welding quality of the explosion-proof box, thereby reducing the production quality of the explosion-proof box. Summary of the invention

[0005] The purpose of the present application is to provide a welding device and a welding process for an explosion-proof box, so as to minimize dust and tiny particles in the weld, thereby improving the production quality of the entire explosion-proof box.

[0006] In the first aspect, the present application provides a welding device for an explosion-proof box adopts the following technical solution: The workbench has an explosion-proof box placed on the upper surface; A welding gun is slidably mounted on the workbench, and a driving assembly is also provided on the workbench for driving the welding gun to move along the length direction of the weld on the explosion-proof box, and the driving assembly can also drive the welding gun to move in a direction close to or away from the direction box; A gas blowing pipe is installed on the welding gun, one end of the gas blowing pipe is directly facing the welding seam, and the other end of the gas blowing pipe is connected to the gas source; A directional sound wave transmitter is installed on the welding gun, the output end of the directional sound wave transmitter is facing the weld, and the directional sound wave transmitter is located on the side of the air blow pipe away from the welding gun. The directional sound wave transmitter is located at the front end of the moving direction of the welding gun. The directional sound wave transmitter can directionally transmit and receive sound waves to detect whether there are tiny particles in the weld and make the tiny particles vibrate.

[0007] Optionally, the air blowing pipe is provided with an adjusting component, and the adjusting component is used to adjust the diameter of the air blowing pipe to increase or decrease the flow intensity of the gas ejected from the air blowing pipe.

[0008] Optionally, the adjustment assembly includes an adjustment plate, and there are multiple adjustment plates. The multiple adjustment plates are evenly spaced around the axis of the air blowing pipe, and the multiple adjustment plates are hinged to one end of the air blowing pipe close to the weld. The multiple adjustment plates can rotate along the axis of the air blowing pipe to enclose a column-shaped pipe, and the closer the pipe is to the weld, the smaller the diameter of the pipe is. A winding drum is rotatably arranged on the welding gun, and a tightening wire is wound on the winding drum. A wire threading groove is opened at one end of the multiple adjustment plates close to the weld, and one end of the tightening wire is connected to the outer peripheral wall of the winding drum, and the other end of the tightening wire passes through the wire threading groove on each adjustment plate in turn, and is connected to the groove wall of the wire threading groove on the first adjustment plate passed through. A rotating motor is provided on the welding gun, and the output shaft of the rotating motor is coaxially fixedly connected to the winding drum.

[0009] Optionally, a grinding assembly is provided on the welding gun, and the grinding assembly is located on a side of the welding gun away from the air blow pipe.

[0010] Optionally, the grinding assembly includes a grinding disk, which is rotatably connected to the welding gun. The welding gun is provided with a grinding motor, and the output shaft of the grinding motor is coaxially and fixedly connected to the grinding disk. The rotation direction of the grinding disk can cause the welding slag to move in a direction away from the output end of the welding gun.

[0011] Optionally, a collecting assembly is provided on the welding gun, and the collecting assembly is capable of collecting welding slag produced by the grinding disc.

[0012] Optionally, the collecting assembly includes a collecting pipe, one end of which is connected to the peripheral wall of the blowing pipe, the other end of which is opposite to the grinding disc, the side wall of the collecting pipe is connected to a collecting box, and a breathable film is provided at the connection between the collecting pipe and the blowing pipe, and the breathable film is provided at a position close to the connection between the collecting box and the collecting pipe.

[0013] Optionally, a positioning component is provided on the workbench, and the positioning component is used to fix the position of the explosion-proof box.

[0014] Optionally, the positioning assembly is provided with multiple groups, and the multiple groups of positioning assemblies surround the explosion-proof box. The positioning assembly includes a positioning column, a positioning block and a return spring. The positioning column is installed on the workbench, and a positioning groove is opened on the end of the positioning column close to the explosion-proof box. The positioning block is slidably inserted into the positioning groove, and the end of the positioning block away from the positioning groove is pressed against the explosion-proof box. The return spring is located in the positioning groove, one end of the return spring is connected to the groove wall of the positioning groove, and the other end of the return spring is connected to the positioning block.

[0015] In a second aspect, the present application provides a welding process for an explosion-proof box, comprising the following steps: S1: Place the explosion-proof box that has been spot-welded on the workbench, and then position the explosion-proof box using the positioning assembly; S2: Start the gas source and the directional acoustic wave transmitter, so that the air blowing pipe can clean the dust and tiny particles in the weld. The directional acoustic wave transmitter can transmit ultrasonic waves in a direction to detect whether there are tiny particles that are difficult to clean in the weld. When tiny particles are detected, the ultrasonic waves emitted by the directional acoustic wave transmitter can make the tiny particles vibrate to facilitate cleaning. At the same time, the adjustment component is started to reduce the diameter of the air blowing pipe near the weld, increase the flow intensity of the gas ejected, strengthen the wind force, and enhance the cleaning ability of the tiny particles in the weld; S3: Start the welding gun and the grinding assembly, so that the welding gun welds the weld of the explosion-proof box, the grinding assembly grinds the welded weld, the collecting pipe collects the welding slag, and at the same time start the driving assembly to drive the blowing pipe, the sonic directional transmitter, the welding gun, the grinding assembly and the collecting assembly to move along the length direction of the weld.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. The setting of the air blow pipe can clean the dust and tiny particles in the weld of the explosion-proof box in advance, so as to facilitate the subsequent welding of the cleaned weld by the welding gun, so as to avoid the dust and tiny particles from being mixed in the molten pool at the weld, resulting in the welding quality of the weld, thereby improving the welding quality and production quality of the weld of the explosion-proof box; in addition, the setting of the sound wave directional transmitter can emit directional ultrasonic waves similar to light columns, and its output end is facing the weld. When there are some large-volume tiny particles in the weld, these large-volume tiny particles are easy to get stuck in the weld. It is difficult to clean the tiny particles stuck in the weld with the air blow pipe. When the ultrasonic waves emitted by the sonic directional transmitter hit the tiny particles stuck in the weld, the tiny particles stuck in the weld can vibrate. The vibrating tiny particles will collide or rub with the inner wall of the weld, so that the volume of the tiny particles stuck in the weld is reduced or split into smaller particles. Therefore, the tiny particles are easily blown away by the gas ejected by the air blow pipe, thereby improving the overall effect of the air blow pipe on cleaning dust and tiny particles in the weld, and further improving the welding quality and production quality of the explosion-proof box weld. 2. The sonic directional transmitter can not only transmit ultrasonic waves in a directional manner to make tiny particles vibrate, but also detect whether there are still tiny particles in the weld to be cleaned. When the sonic directional transmitter detects the presence of tiny particles, it transmits a signal to the control center, and the control center starts the adjustment component to reduce the diameter of the air pipe. The reduction in the diameter of the air pipe can increase the flow rate of the gas ejected from the air pipe, thereby increasing the wind force of the gas ejected from the air pipe, and further improving the effect of the air pipe on cleaning dust and tiny particles in the weld, and further improving the welding quality and production quality of the explosion-proof box weld; 3. The setting of the grinding component enables welding and grinding to be carried out simultaneously, greatly improving the production efficiency of the explosion-proof box; 4. The collecting tube in the collecting assembly is connected with the blowing tube. The collecting tube can suck the welding slag into the collecting tube. The high-speed flowing gas in the blowing tube is used to form a negative pressure in the collecting tube, so that the end of the collecting tube close to the grinding disc has a strong suction force, so that the collecting tube can collect the welding slag on the grinding disc and the welding joint that has been polished, so as to avoid the welding slag splashing as much as possible, which causes the welding slag to enter the weld. Therefore, the collecting assembly also improves the welding quality and production quality of the explosion-proof box weld to a certain extent; in addition, the collecting tube can also collect the smoke generated by the grinding work, thereby improving the working environment quality of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application; Figure 2is a schematic diagram of the structure of the support plate in an embodiment of the present application; Figure 3 is a schematic diagram of the structure of the adjustment component in the embodiment of the present application; Figure 4 yes Figure 3 The enlarged schematic diagram of point A in the middle; Figure 5 is a schematic diagram of the structure of the positioning component in an embodiment of the present application; Figure 6 It is a schematic diagram of the structure of the collection component in Example 1 of the present application; In the figure, 1. workbench; 11. slide rail; 2. drive assembly; 21. screw rod; 22. nut; 23. drive motor; 24. support plate; 25. hydraulic cylinder; 3. welding gun; 4. air blow pipe; 5. sonic directional transmitter; 6. adjustment assembly; 61. adjustment plate; 611. threading groove; 62. column; 63. winding drum; 64. tightening wire; 65. rotating motor; 7. grinding assembly; 71. support column; 72. grinding disc; 73. grinding motor; 8. collection assembly; 81. collection tube; 82. collection box; 83. breathable film; 9. positioning assembly; 91. positioning column; 911. positioning groove; 92. positioning block; 93. reset spring; 10. explosion-proof box. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-6 , further details of this application are given. Example 1

[0019] A welding device for explosion-proof box, referring to Figure 1 and Figure 2 , including a workbench 1, a welding gun 3, an air blowpipe 4 and a sound wave directional transmitter 5.

[0020] In this embodiment, the workbench 1 is fixedly installed on the ground, and the upper end surface of the workbench 1 is rotatably connected to a rotating disk, which is arranged horizontally. A motor (not shown in the figure) for driving the rotating disk to rotate is arranged inside the workbench 1, and an explosion-proof box 10 is placed on the rotating disk. A positioning component 9 for fixing the explosion-proof box 10 is arranged on the upper end surface of the rotating disk.

[0021] A support plate 24 is slidably provided on the workbench 1, and the welding gun 3 is fixedly installed on the upper end surface of the support plate 24, and the output end of the welding gun 3 is facing the weld on the explosion-proof box 10. A driving component 2 is also provided on the workbench 1. The driving component 2 can drive the support plate 24 to move along the length direction of the weld on the explosion-proof box 10, and the driving component 2 can also drive the support plate 24 to move in a direction close to or away from the explosion-proof box 10.

[0022] The air blowing pipe 4 is fixedly mounted on the upper end surface of the support plate 24, and a connecting rod is arranged between the air blowing pipe 4 and the support plate 24, one end of the air blowing pipe 4 is directly opposite to the weld, and the other end of the air blowing pipe 4 is connected to a gas source (not shown in the figure). In this embodiment, the gas source can be a nitrogen manufacturing machine or a nitrogen storage device, and the nitrogen therein can also be a dry inert gas such as carbon dioxide. Therefore, the gas blown out from the air blowing pipe 4 can not only clean the dust and tiny particles in the weld of the explosion-proof box 10, but the dry inert gas can also prevent the welding area from undergoing an oxidation reaction with oxygen in the air, thereby improving the welding quality; in addition, the inert gas can also accelerate the cooling of the welding area, thereby effectively controlling the grain coarsening and the size of the heat-affected zone during the welding process, which helps to obtain high-quality welds and improve the strength and toughness of the welded parts.

[0023] The directional sound wave transmitter 5 is fixedly mounted on the support plate 24, the output end of the directional sound wave transmitter 5 is facing the weld, and the directional sound wave transmitter 5 is located on the side of the air blowing pipe 4 away from the welding gun 3, and the directional sound wave transmitter 5 is located at the front end of the welding gun 3 along the moving direction of the weld length. The directional sound wave transmitter 5 can directionally transmit and receive sound waves to detect whether there are tiny particles in the weld and make the tiny particles vibrate. The extension line of the output end of the directional sound wave transmitter 5 is perpendicular to the straight line where the weld is located, the air blowing pipe 4 and the directional sound wave transmitter 5 are arranged at a certain angle, and the intersection of the extension line of the output end of the directional sound wave transmitter 5 and the extension line of the axis of the air blowing pipe 4 is located in the weld of the explosion-proof box 10.

[0024] The air blowing pipe 4 is also provided with an adjusting component 6 , which is used to adjust the diameter of the air blowing pipe 4 so as to increase or decrease the flow intensity of the gas ejected from the air blowing pipe 4 .

[0025] When it is necessary to weld the weld on the explosion-proof box 10, start the driving assembly 2 to drive the support plate 24 to move in the direction close to the explosion-proof box 10 until the output end of the welding gun 3 and the weld on the explosion-proof box 10 are in the same straight line. At this time, the output ends of the air blow pipe 4 and the directional acoustic wave transmitter 5 are still some distance away from the explosion-proof box 10. The directional acoustic wave transmitter 5 is facing one end of the weld on the explosion-proof box 10. The output end of the grinding assembly 7 and the output end of the welding gun 3 are on the same horizontal line. At this time, the grinding assembly 7 is located on one side of the explosion-proof box 10 and does not touch the explosion-proof box 10. Then start the directional acoustic wave transmitter 5 and the gas source connected to the air blow pipe 4. The gas ejected by the air blow pipe 4 can clean the dust and tiny particles in the weld of the explosion-proof box 10, thereby avoiding dust and tiny particles from being mixed in the molten metal at the weld as much as possible. The pool leads to the situation that the welding quality of the weld is poor, thereby improving the welding quality and production quality of the weld of the explosion-proof box 10; at the same time, since the air blowing pipe 4 has a certain diameter, the gas ejected from the air blowing pipe 4 can cover a certain area of ​​the weld, therefore, the air blowing pipe 4 can clean a certain area in the weld, and this area is larger than the area that the directional acoustic wave transmitter 5 can detect in the weld, after the air blowing pipe 4 cleans the dust and tiny particles in the weld, the directional acoustic wave transmitter 5 at this time can be directed to emit ultrasonic waves in the cleaned area in the weld on the explosion-proof box 10, when the emitted ultrasonic wave hits tiny particles, the ultrasonic wave will rebound, and then the directional acoustic wave transmitter 5 will also receive the ultrasonic wave at the same time, thereby judging whether there are still tiny particles in the cleaned area in the weld on the explosion-proof box 10.

[0026] When the sonic directional transmitter 5 detects that there are still tiny particles in the cleaned weld area, it means that the volume of these tiny particles is relatively large, or the tiny particles are stuck in the weld, which makes it difficult for these tiny particles to be removed. Therefore, the sonic directional transmitter 5 at this time will transmit this signal to the control center of the welding device, and then the control center will reduce the diameter of the blowing pipe 4 through the adjustment component 6. The reduction in the diameter of the blowing pipe 4 can increase the flow rate of the gas ejected from the blowing pipe 4; thereby increasing the wind force of the gas ejected from the blowing pipe 4, and then improving the effect of the blowing pipe 4 on cleaning dust and tiny particles in the weld, further improving the welding quality and production quality of the weld of the explosion-proof box 10; at the same time, the ultrasonic wave emitted by the sonic directional transmitter 5 can not only detect whether there is any dust in the weld, but also can detect whether there is any dust in the weld. There are tiny particles that are difficult to clean. The ultrasonic waves emitted by the directional acoustic wave transmitter 5 can also make the tiny particles stuck in the weld or the larger tiny particles vibrate. The vibrating tiny particles will collide or rub with the inner wall of the weld, so that the volume of the tiny particles stuck in the weld is ground down or split into smaller particles. Therefore, the smaller tiny particles are easily blown away by the gas ejected from the air blow pipe 4, thereby further improving the overall effect of the air blow pipe 4 on cleaning dust and tiny particles in the weld, and further improving the welding quality and production quality of the weld of the explosion-proof box 10; and when the tiny particles in the weld are cleaned, the control center will adjust the diameter of the air blow pipe 4 to the initial state through the adjustment component 6, so as to clean the next area in the weld.

[0027] Among them, after starting the directional sound wave transmitter 5 and the gas source connected to the air blowing pipe 4, the welding gun 3 and the driving assembly 2 are started, and the driving assembly 2 drives the support plate 24 to move along the length direction of the weld, thereby driving the directional sound wave transmitter 5, the air blowing pipe 4, the welding gun 3 and the grinding assembly 7 to move from one end of the weld to the other end close to the weld. During the movement of the directional sound wave transmitter 5 and the air blowing pipe 4, the directional sound wave transmitter 5 and the air blowing pipe 4 can clean the dust and tiny particles in the weld area passed through as thoroughly as possible, and then the welding gun 3 welds the cleaned weld area, and the grinding assembly 7 can immediately grind the weld area after the welding gun 3 welds the weld area, and the welding work and the grinding work are carried out simultaneously, which can greatly improve the production efficiency of the explosion-proof box 10; at the same time, the gas ejected by the air blowing pipe 4 can also accelerate the air circulation in the weld, thereby accelerating the cooling speed of the weld, so that the subsequent grinding assembly 7 can grind the weld.

[0028] It should be noted that the directional sound wave transmitter 5 in the present embodiment adopts the 100X long-range directional sound wave transmitter 5 of Yinruida. The width and height of the directional sound wave transmitter 5 are both 35.6 cm, and the thickness is 16.5 cm. It has a relatively small volume and is suitable for the welding device in the present embodiment. The directional sound wave transmitter 5 mainly includes an ultrasonic transducer, a power amplifier and an array generator. The ultrasonic transducer can convert an electrical signal into a mechanical vibration to generate an ultrasonic wave, and the power amplifier is mainly used to amplify the signal generated by the signal source and transmit the amplified signal to the ultrasonic transducer. By adjusting the phase and amplitude of each ultrasonic transducer in the array sound generator, the directional emission of the sound wave can be achieved. The beamforming technology uses the interference principle of physics to focus multiple ultrasonic beams in a specific direction to form a directional sound wave beam, thereby realizing the directional emission of the sound wave as a whole. Different from the prior art, the directional sound wave transmitter 5 in the present embodiment is also provided with a sound wave receiver to detect whether there are tiny particles that are difficult to clean in the weld.

[0029] In addition, the sound wave beam emitted by the directional sound wave transmitter 5 in this embodiment will not act on the explosion-proof box 10. Since the sound wave beam acting on the explosion-proof box 10 may cause the explosion-proof box 10 itself to vibrate, and the vibration of the explosion-proof box 10 itself may easily cause the welds on the explosion-proof box 10 to break and the welding work to fail, the sound wave beam emitted by the directional sound wave transmitter 5 in this embodiment is specifically debugged so that the emitted sound beam only passes through the weld area on the explosion-proof box 10.

[0030] Continue to refer to Figure 1 The driving assembly 2 includes a screw rod 21 and a nut 22 .

[0031] A slide rail 11 is provided on the workbench 1, a nut 22 is slidably connected to the slide rail 11, a screw rod 21 is rotatably installed on the workbench 1, and the nut 22 is threadedly connected to the screw rod 21. A drive motor 23 is also provided on the workbench 1, and an output shaft of the drive motor 23 is coaxially fixedly connected to the screw rod 21. A support plate 24 is slidably installed on the upper end surface of the nut 22. A hydraulic cylinder 25 is also provided on the upper end surface of the nut 22, and an output shaft of the hydraulic cylinder 25 is fixedly connected to the support plate 24. The axis of the screw rod 21 is arranged perpendicular to the axis of the hydraulic cylinder 25. When it is necessary to drive the welding gun 3 to move along the length direction of the weld, the drive motor 23 is started to drive the screw rod 21 to rotate, thereby achieving the effect of moving the welding gun 3 along the length direction of the weld; when the welding gun 3 needs to move in a direction close to or away from the explosion-proof box 10, the hydraulic cylinder 25 is started, the output shaft of the hydraulic cylinder 25 is extended, the welding gun 3 moves in a direction close to the explosion-proof box 10, the output shaft of the hydraulic cylinder 25 is contracted, and the welding gun 3 moves in a direction away from the explosion-proof box 10.

[0032] Reference Figure 3and Figure 4 The adjustment assembly 6 includes an adjustment plate 61 .

[0033] There are multiple adjustment plates 61. In this embodiment, there are four adjustment plates 61. The four adjustment plates 61 are evenly spaced around the axis of the air blowing pipe 4. The four adjustment plates 61 are hinged to one end of the air blowing pipe 4 close to the weld. The hinges between the adjustment plates 61 and the air blowing pipe 4 are provided with hinge springs (not shown in the figure). The four adjustment plates 61 can rotate along the axis close to the air blowing pipe 4 to enclose a column-shaped pipe, and the closer the pipe is to the weld, the smaller the diameter. Two columns 62 are provided on the support plate 24. The two columns 62 are arranged opposite to each other. A winding drum 63 is rotatably arranged between the columns 62, and a tightening wire 64 is wound on the winding drum 63. A threading groove 611 is opened at one end of the four adjustment plates 61 close to the weld. One end of the tightening wire 64 is fixedly connected to the outer peripheral wall of the winding drum 63, and the other end of the tightening wire 64 passes through the threading groove 611 on each adjustment plate 61 in turn, and is fixedly connected to the groove wall of the threading groove 611 on the first adjustment plate 61 passed through. A rotating motor 65 is arranged on one of the columns 62, and the output shaft of the rotating motor 65 is coaxially fixedly connected to the winding drum 63.

[0034] When the sonic directional transmitter 5 detects the presence of tiny particles in the weld, the sonic directional transmitter 5 transmits a signal to the control center, and the control center controls the output shaft of the rotating motor 65 to rotate forward, driving the winding drum 63 to rotate forward, so that the tightening wire 64 is wound around the outer peripheral wall of the winding drum 63. During the winding process, the tightening wire 64 will apply pressure to the groove wall of the threading groove 611, and drive the four adjustment plates 61 to rotate along the axial direction close to the blowing pipe 4 until the four adjustment plates 61 surround a column-shaped pipe, the diameter of which is getting smaller and smaller in the direction close to the weld, and at this time the adjustment plate 61 is rotated. The hinged spring between the section plate 61 and the air blowing pipe 4 is in a tensioned state, so the flow velocity of the gas ejected from the pillar-shaped pipe increases; on the contrary, when the acoustic wave directional transmitter 5 detects the presence of tiny particles in the weld, the rotating motor 65 reverses, driving the winding drum 63 to reverse, at this time, the tightening wire 64 wound on the winding drum 63 is in a relaxed state, the tightening wire 64 no longer applies pressure to the adjustment plate 61, and the hinged spring is reset, thereby driving the adjustment plate 61 back to the initial position, the pillar-shaped pipe no longer exists, and the flow velocity of the gas blown out from the air blowing pipe 4 is also restored to the original speed.

[0035] It should be noted that, when the four adjustment plates 61 in this embodiment enclose a column-shaped pipe, the flow velocity of the gas ejected from the pipe increases, and due to the reduction in the diameter of the gas outlet, the effective range of the ejected gas is correspondingly reduced, so that the high-speed gas can be concentratedly sprayed on the tiny particles, making the gas ejected from the blowing pipe 4 more effective, further improving the cleaning effect of the blowing pipe 4 on the tiny particles.

[0036] Reference Figure 2 and Figure 3 The grinding assembly 7 includes a grinding disc 72 .

[0037] A support column 71 is fixedly installed on the support plate 24, and a grinding disc 72 is coaxially rotatably installed on the upper end surface of the support column 71. A grinding motor 73 is arranged inside the support column 71, and the output shaft of the grinding motor 73 is coaxially fixedly connected to the grinding disc 72. The rotation direction of the grinding disc 72 can make the welding slag move in a direction away from the output end of the welding gun 3.

[0038] When the driving assembly 2 drives the output end of the welding gun 3 to move to the same straight line as the weld on the explosion-proof box 10, the point of the grinding disc 72 closest to the weld is also on the straight line where the weld is located, and when the welding gun 3 is started, the grinding motor 73 is also started. When the welding gun 3 completes the welding of the weld, as the welding gun 3 and the grinding disc 72 move, the grinding disc 72 can grind the welded part on the explosion-proof box 10, and the welding work and the grinding work are carried out simultaneously, which greatly improves the production efficiency of the explosion-proof box 10; in addition, the grinding disc 72 in the present embodiment rotates clockwise as shown in the figure. When the grinding disc 72 rotating clockwise grinds the welding part of the explosion-proof box 10, the grinding residue can be guided away from the weld that has not been welded, thereby avoiding the grinding residue from entering the weld that has not been welded as much as possible, resulting in a decrease in the welding quality of the weld, thereby further improving the welding quality and production quality of the weld of the explosion-proof box 10.

[0039] Reference Figure 2 and Figure 6 A collecting assembly 8 for collecting welding slag produced by the grinding disc 72 is also provided on the support plate 24 , and the collecting assembly 8 includes a collecting pipe 81 .

[0040] The collecting tube 81 in this embodiment is configured to be L-shaped, one end of the collecting tube 81 is connected to the peripheral wall of the blowing tube 4, and the other end of the collecting tube 81 is opposite to the joint between the grinding disc 72 and the weld. The side wall of the collecting tube 81 is connected to a collecting box 82, and the collecting box 82 is disposed on the supporting plate 24. A breathable film 83 is disposed in the collecting tube 81, and the breathable film 83 is disposed near the connecting point between the collecting box 82 and the collecting tube 81.

[0041] When the gas source is turned on, the gas flow rate in the blowing pipe 4 will increase, so a negative pressure will be formed in the collecting pipe 81. The end of the collecting pipe 81 close to the grinding disc 72 has a strong suction force, so that the collecting pipe 81 can collect the welding slag on the grinding disc 72 and the welding joints that have been polished, so as to avoid the welding slag splashing as much as possible, which causes the welding slag to enter the weld. Therefore, the collecting component 8 also improves the welding quality and production quality of the weld of the explosion-proof box 10 to a certain extent; in addition, when the welding slag enters the collecting pipe 81, the welding slag will touch the breathable film 83. Since the welding slag cannot pass through the breathable film 83, and under the action of gravity, it finally falls into the collecting box 82, thereby realizing the collection of the welding slag as a whole.

[0042] Reference Figure 1 and Figure 5 In this embodiment, four groups of positioning components 9 are provided, and the four groups of positioning components 9 correspond to the four sides under the explosion-proof, and the positioning components 9 include a positioning column 91, a positioning block 92 and a reset spring 93.

[0043] The positioning column 91 is fixedly installed on the workbench 1, and a positioning groove 911 is opened on the end of the positioning column 91 close to the explosion-proof box 10. The positioning block 92 is slidably inserted into the positioning groove 911, and the end of the positioning block 92 away from the positioning groove 911 is pressed against the explosion-proof box 10. The return spring 93 is located in the positioning groove 911, and one end of the return spring 93 is connected to the groove wall of the positioning groove 911, and the other end of the return spring 93 is connected to the positioning block 92.

[0044] When the explosion-proof box 10 needs to be placed on the workbench 1, the positioning block 92 is squeezed in the direction close to the positioning column 91, the positioning spring is in a compressed state, and then the explosion-proof box 10 is placed between the four positioning blocks 92. The positioning block 92 is no longer squeezed, and the positioning block 92 moves in the direction close to the explosion-proof box 10 under the reset of the positioning spring until the positioning block 92 abuts against the explosion-proof box 10, so that the positioning blocks 92 in the four positioning assemblies 9 position the explosion-proof box 10 horizontally. Example 2

[0045] A welding process for an explosion-proof box, according to the above-mentioned welding device for an explosion-proof box, comprises the following steps: S1: placing the explosion-proof box 10 after spot welding on the workbench 1, and then positioning the explosion-proof box 10 by the positioning component 9; S2: Start the driving component 2, drive the directional acoustic wave emitter 5, the air blowing pipe 4, the welding gun 3, the grinding component 7 and the collecting component 8 to move in the direction close to the explosion-proof box 10, until the welding gun 3 abuts against the weld on the explosion-proof box 10, start the gas source and the directional acoustic wave emitter 5, so that the air blowing pipe 4 cleans the dust and tiny particles in the weld, and the directional acoustic wave emitter 5 directionally emits ultrasonic waves to detect whether there are tiny particles that are difficult to clean in the weld. When the presence of tiny particles is detected, the ultrasonic waves emitted by the directional acoustic wave emitter 5 can make the tiny particles vibrate for easy cleaning. At the same time, the regulating component 6 is started, so that the diameter of the air blowing pipe 4 close to the weld becomes smaller, the flow intensity of the gas ejected is increased, the wind force is enhanced, and the cleaning ability of the tiny particles in the weld is enhanced; When the tiny particles in the weld are cleaned, the regulating assembly 6 is started again to adjust the diameter of the blowing pipe 4 to return to the original state; S3: Start the welding gun 3 and the grinding assembly 7, so that the welding gun 3 welds the weld of the explosion-proof box 10, the grinding assembly 7 grinds the welded weld, the collecting pipe 81 collects the welding slag, and at the same time start the driving assembly 2 to drive the blowing pipe 4, the directional sound wave transmitter 5, the welding gun 3, the grinding assembly 7 and the collecting assembly 8 to move along the length direction of the weld.

[0046] Producing the explosion-proof box 10 through this process not only improves the welding quality of the explosion-proof box 10 and the overall strength of the explosion-proof box 10 , but also can greatly improve the production efficiency of the explosion-proof box 10 .

[0047] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A welding device for an explosion-proof box, characterized in that: include: A workbench (1) having an explosion-proof box (10) placed on its upper end surface; A welding gun (3) is slidably mounted on the workbench (1), and a driving assembly (2) is also provided on the workbench (1) for driving the welding gun (3) to move along the length direction of the weld on the explosion-proof box (10), and the driving assembly (2) can also drive the welding gun (3) to move in a direction close to or away from the direction box; An air blowing pipe (4) is installed on the welding gun (3), one end of the air blowing pipe (4) is directly opposite to the welding seam, and the other end of the air blowing pipe (4) is connected to the air source; A sonic directional transmitter (5) is mounted on the welding gun (3), the output end of the sonic directional transmitter (5) is directly opposite to the weld, and the sonic directional transmitter (5) is located on a side of the gas blowing pipe (4) away from the welding gun (3). The sonic directional transmitter (5) is located at the front end of the moving direction of the welding gun (3). The sonic directional transmitter (5) can transmit and receive sonic waves in a directionally manner, so as to detect whether there are tiny particles in the weld and to cause the tiny particles to vibrate.

2. The welding device for an explosion-proof box according to claim 1, characterized in that: The air blowing pipe (4) is provided with an adjusting component (6), and the adjusting component (6) is used to adjust the diameter of the air blowing pipe (4) so ​​as to increase or decrease the flow intensity of the gas ejected from the air blowing pipe (4).

3. The welding device for an explosion-proof box according to claim 2, characterized in that: The adjustment assembly (6) comprises an adjustment plate (61), a plurality of the adjustment plates (61) are provided, and the plurality of adjustment plates (61) are evenly spaced around the axis of the air blowing pipe (4), and the plurality of adjustment plates (61) are hinged to one end of the air blowing pipe (4) close to the weld, and the plurality of adjustment plates (61) can rotate along the axis close to the air blowing pipe (4) to enclose a column-shaped pipe, and the closer the pipe is to the weld, the smaller the diameter is; a winding drum (63) is rotatably provided on the welding gun (3), and a tightening wire is wound around the winding drum (63). (64), a plurality of the adjustment plates (61) are provided with a threading groove (611) at one end close to the welding seam, one end of the tightening wire (64) is connected to the outer peripheral wall of the winding drum (63), the other end of the tightening wire (64) passes through the threading groove (611) on each adjustment plate (61) in turn, and is connected to the groove wall of the threading groove (611) on the first adjustment plate (61) passed through, and the welding gun (3) is provided with a rotating motor (65), and the output shaft of the rotating motor (65) is coaxially fixedly connected to the winding drum (63).

4. The welding device for an explosion-proof box according to claim 3, characterized in that: The welding gun (3) is provided with a grinding component (7), and the grinding component (7) is located on a side of the welding gun (3) away from the air blowing pipe (4).

5. The welding device for explosion-proof box according to claim 4, characterized in that: The grinding assembly (7) comprises a grinding disc (72), the grinding disc (72) being rotatably connected to the welding gun (3), the welding gun (3) being provided with a grinding motor (73), the output shaft of the grinding motor (73) being coaxially fixedly connected to the grinding disc (72), and the rotation direction of the grinding disc (72) being capable of causing the welding slag to move in a direction away from the output end of the welding gun (3).

6. The welding device for explosion-proof box according to claim 5, characterized in that: The welding gun (3) is provided with a collecting component (8), and the collecting component (8) is capable of collecting welding slag produced by the grinding disc (72).

7. The welding device for explosion-proof box according to claim 6, characterized in that: The collecting assembly (8) comprises a collecting pipe (81), one end of the collecting pipe (81) being connected to the peripheral wall of the blowing pipe (4), the other end of the collecting pipe (81) being directly opposite to the grinding disc (72), the side wall of the collecting pipe (81) being connected to a collecting box (82), a breathable film (83) being provided at the connecting point between the collecting pipe (81) and the blowing pipe (4), the breathable film (83) being provided at a position close to the connecting point between the collecting box (82) and the collecting pipe (81).

8. The welding device for explosion-proof box according to claim 1, characterized in that: A positioning component (9) is provided on the workbench (1), and the positioning component (9) is used to fix the position of the explosion-proof box (10).

9. The welding device for explosion-proof box according to claim 1, characterized in that: The positioning assembly (9) is provided with a plurality of groups, and the plurality of groups of positioning assemblies (9) surround the explosion-proof box (10). The positioning assembly (9) comprises a positioning column (91), a positioning block (92) and a return spring (93). The positioning column (91) is mounted on the workbench (1). A positioning groove (911) is provided on one end of the positioning column (91) close to the explosion-proof box (10). The positioning block (92) is slidably inserted into the positioning groove (911). An end of the positioning block (92) away from the positioning groove (911) is pressed against the explosion-proof box (10). The return spring (93) is located in the positioning groove (911). One end of the return spring (93) is connected to a groove wall of the positioning groove (911), and the other end of the return spring (93) is connected to the positioning block (92).

10. A welding process for an explosion-proof box, based on a welding device for an explosion-proof box according to any one of claims 1 to 9, comprising the following steps: S1: placing the explosion-proof box (10) that has been spot-welded on a workbench (1), and then positioning the explosion-proof box (10) using a positioning component (9); S2: starting the gas source and the directional sound wave transmitter (5) so that the air blowing pipe (4) cleans the dust and tiny particles in the weld. The directional sound wave transmitter (5) transmits ultrasonic waves in a direction to detect whether there are tiny particles that are difficult to clean in the weld. When tiny particles are detected, the ultrasonic waves emitted by the directional sound wave transmitter (5) can cause the tiny particles to vibrate so as to facilitate cleaning. At the same time, the regulating component (6) is started so that the diameter of the air blowing pipe (4) close to the weld becomes smaller, the flow intensity of the gas ejected is increased, the wind force is enhanced, and the cleaning ability of the tiny particles in the weld is enhanced; S3: The welding gun (3) and the grinding assembly (7) are started, so that the welding gun (3) welds the weld of the explosion-proof box (10), the grinding assembly (7) grinds the weld, and the collection pipe (81) collects the welding slag. At the same time, the driving assembly (2) is started to drive the air blowing pipe (4), the sonic directional transmitter (5), the welding gun (3), the grinding assembly (7) and the collection assembly (8) to move along the length direction of the weld.

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