Sheet metal welding device and sheet metal preparation process

Abstract

The present invention relates to the technical field of sheet metal welding equipment, and in particular to a sheet metal welding device and a sheet metal preparation process, wherein the technical solution comprises a welding assembly, a top frame, a shell and an installation frame, wherein installation chambers are provided on both sides of the interior of the shell, and a gas tank is fixedly installed inside the installation chamber, a guide tube is fixedly installed on the top of the gas tank, and a mounting plate is fixedly installed on the outer side of one end of the guide tube away from the gas tank. The present invention provides a correction wheel in the welding assembly, so that after the welding head completes the welding work, due to the high temperature generated by the long-term power supply of the welding head, when the welding head is in a state of low hardness, the correction wheel is used to rotate on the outer side of the welding head, so that the side of the welding head is subjected to thrust, thereby restoring the bent welding head to its original position, thereby ensuring that the welding head can maintain a vertical state, thereby ensuring the accuracy of subsequent welding work, and also improving the durability of the welding device and reducing the replacement cost of the welding head.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet metal welding equipment, in particular to a sheet metal welding device and a sheet metal preparation process. Background Art

[0002] Electric welding is a processing method that heats the welding point through electric current to melt the metal, thereby connecting and solidifying the joint. It is often used in industrial sheet metal processing. Electric welding has the advantages of easy control, high welding efficiency and simple operation. Therefore, it has been widely used in industrial sheet metal welding. Therefore, in order to improve the durability and practicality of sheet metal welding equipment, we propose a sheet metal welding equipment and sheet metal preparation process.

[0003] The prior art also has the following defects during use:

[0004] 1. When sheet metal welding devices in the prior art use electric welding, the welding head needs to apply pressure to the welding point to promote welding while transmitting current. Therefore, the welding head is exposed to high temperature and pressure for a long time, which easily causes the welding head to bend. This will affect the welding effect of the welding point during later use, resulting in the need for frequent replacement of the welding head of the conventional welding device, increasing the use cost of the welding device and reducing the durability of the welding device.

[0005] 2. When sheet metal welding devices in the prior art are used to weld sheet metal parts, since the sheet metal parts are welded at room temperature and pressure, and the temperature required for welding is relatively high, after welding is completed, the temperature of the weld point will drop rapidly, causing hydrogen atoms to penetrate into the metal, resulting in hydrogen embrittlement or cold cracking, which in turn leads to unsatisfactory welding results.

[0006] In view of this, we propose a sheet metal welding device and a sheet metal preparation process to solve the existing problems. Summary of the Invention

[0007] The object of the present invention is to provide a sheet metal welding device and a sheet metal preparation process to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sheet metal welding device and a sheet metal preparation process, comprising a welding assembly, a top frame, a shell and an installation frame, installation chambers are opened on both sides of the interior of the shell, and a gas tank is fixedly installed inside the installation chamber, a guide tube is fixedly installed on the top of the gas tank, a mounting plate is fixedly installed on the outer side of one end of the guide tube away from the gas tank, the mounting plate is fixedly connected to the inner wall of the installation chamber, one side of the mounting plate faces the inner side of the shell, and a plurality of nozzles are fixedly installed on one side of the mounting plate, one end of the nozzle is fixedly connected to the guide tube, a welding table is fixedly installed inside the shell, and a plurality of circular holes are opened inside the welding table;

[0009] A mounting frame is fixedly installed on the top of the welding table, and an electromagnetic coil is fixedly installed inside the mounting frame;

[0010] A top frame is fixedly installed on the top of the shell, a square groove is opened inside the top frame, electromagnetic slide rails are fixedly installed on both sides of the inside of the top frame, a driving rod is slidably installed on the inner side of the electromagnetic slide rail, and a motor is fixedly installed on one end of the driving rod, and the motor is engaged with the electromagnetic slide rail;

[0011] A welding assembly is installed on the outer side of the driving rod through a threaded structure.

[0012] Preferably, the welding assembly includes a slide, a temperature sensor is fixedly mounted on the front of the slide, a drive motor is fixedly mounted on the back of the slide, a drive wheel is fixedly mounted on the bottom of the drive motor, an electric telescopic rod is fixedly mounted on the bottom of the slide, and a welding head is fixedly mounted on the bottom of the electric telescopic rod;

[0013] The bottom of the slide is located on the outside of the electric telescopic rod and is fixedly installed with a sleeve. The outside of the sleeve is covered with a bearing seat. The top of the bearing seat is fixedly installed with a driven wheel, and the outside of the driven wheel is connected to the driving wheel through a belt. The outside of the bearing seat is fixedly installed with a connecting frame, and the bottom of the connecting frame is fixedly installed with a correcting wheel. The correcting wheel is an eccentric ring structure that deviates from the center of the welding head, and the inner wall of the correcting wheel contacts the side of the welding head.

[0014] Preferably, a controller is fixedly mounted on one side of the top of the top frame, and a plurality of wires are fixedly mounted on both sides of the controller.

[0015] Preferably, two sets of cover plates are installed on both sides of the shell through hinges, and the cover plates are consistent with the installation chamber.

[0016] Preferably, mounting frames are extended from both ends of the electromagnetic coil to install current controllers, and the current controllers are fixedly connected to the top of the shell.

[0017] Preferably, the welding table is an arch-shaped metal structure, and a waste chute is movably installed below the welding table.

[0018] Preferably, a fixing frame is fixedly installed inside the installation chamber, and a strap is fixedly installed on one side of the fixing frame, and the fixing frame is engaged and connected with the gas tank.

[0019] Preferably, a sheet metal preparation process proposed by a sheet metal welding device comprises the following steps:

[0020] In the first step, the sheet metal to be processed is placed on top of the welding table, and the electromagnetic coil is energized to generate an electromagnetic field, which electromagnetically heats the sheet metal in the center of the electromagnetic coil to preheat the sheet metal.

[0021] The second step is to perform electric welding on the preheated sheet metal parts through the welding assembly to perform electric welding on the sheet metal parts;

[0022] The third step is to remove the processed sheet metal parts from the top of the welding table after welding is completed, so that the welding assembly itself can be corrected. After correction, the welding assembly returns to its original position.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention provides a correction wheel in the welding assembly. After the welding head completes the welding work, due to the high temperature generated by the long-term power supply of the welding head, when the welding head is in a state of low hardness, the correction wheel can be used to rotate on the outside of the welding head, so that the side of the welding head is subjected to thrust, thereby restoring the bent welding head to its original position, thereby ensuring that the welding head can maintain a vertical state, thereby ensuring the accuracy of subsequent welding work, and can also improve the durability of the welding device and reduce the replacement cost of the welding head.

[0025] 2. The present invention installs an electromagnetic coil inside the mounting frame, which can perform non-contact electromagnetic heating on the sheet metal on top of the welding table through the electromagnetic effect, so that the sheet metal can be preheated before welding begins, which facilitates the welding point to quickly reach the welding temperature. After welding, the temperature of the welding position can be controlled to slowly drop, thereby avoiding hydrogen embrittlement or cold cracks in the weld point, thereby improving the welding effect of the welding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a front structural schematic diagram of the present invention;

[0028] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0029] Figure 4 It is a schematic diagram of a first partial cross-sectional structure of the present invention;

[0030] Figure 5 It is a schematic diagram of a second partial cross-sectional structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the three-dimensional structure of the welding assembly of the present invention;

[0032] Figure 7 It is a schematic diagram of the front structure of the welding assembly of the present invention.

[0033] In the figure: 1. Welding assembly; 101. Driving motor; 102. Slide; 103. Driving wheel; 104. Driven wheel; 105. Bearing seat; 106. Electric telescopic rod; 107. Welding head; 108. Correction wheel; 109. Connecting frame; 110. Sleeve; 111. Temperature sensor; 2. Top frame; 201. Driving rod; 202. Electromagnetic slide rail; 203. Controller; 3. Shell; 301. Cover; 302. Waste trough; 303. Welding table; 304. Mounting plate; 305. Nozzle; 306. Guide pipe; 307. Gas tank; 4. Mounting frame; 401. Electromagnetic coil; 402. Current controller. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1 - Figure 7As shown, a sheet metal welding device and a sheet metal preparation process proposed by the present invention include a welding assembly 1, a top frame 2, a shell 3 and an installation frame 4, installation chambers are opened on both sides of the interior of the shell 3, and a gas tank 307 is fixedly installed inside the installation chamber, a guide pipe 306 is fixedly installed on the top of the gas tank 307, a mounting plate 304 is fixedly installed on the outer side of one end of the guide pipe 306 away from the gas tank 307, the mounting plate 304 is fixedly connected to the inner wall of the installation chamber, one side of the mounting plate 304 faces the inner side of the shell 3, and a plurality of nozzles 305 are fixedly installed on one side of the mounting plate 304, one end of the nozzle 305 is fixedly connected to the guide pipe 306, a welding table 303 is fixedly installed inside the shell 3, and The welding table 303 has a plurality of circular holes formed therein. The gas tank 307 is used to store shielding gas so as to release shielding gas around the sheet metal during welding, thereby preventing the welding position from being affected by harmful gases and ensuring welding effect and efficiency. The flow guide pipe 306 can connect the gas tank 307 with a plurality of nozzles 305 to expand the diffusion area of the shielding gas. The nozzles 305 are provided so that the gas is sprayed above the mounting frame 4 through the plurality of nozzles 305, thereby preventing the sheet metal of the mounting frame 4 from being affected by harmful gases during welding, thereby improving the welding effect of the device on the sheet metal. The welding table 303 can provide a mounting position for the surrounding components and a welding position for the sheet metal.

[0036] A mounting frame 4 is fixedly mounted on the top of the welding table 303. An electromagnetic coil 401 is fixedly mounted inside the mounting frame 4. The mounting frame 4 provides a mounting location for surrounding components. When energized, the electromagnetic coil 401 generates an electromagnetic field, which in turn heats the sheet metal on the top of the welding table 303 through electromagnetic heating. This preheats the sheet metal before welding, improving welding efficiency. After welding, the temperature of the weld spot can be controlled to slowly decrease to avoid hydrogen embrittlement or cold cracking in the weld spot.

[0037] A top frame 2 is fixedly installed on the top of the shell 3, and a square groove is opened inside the top frame 2. Electromagnetic slide rails 202 are fixedly installed on both sides of the inside of the top frame 2. A driving rod 201 is slidably installed on the inner side of the electromagnetic slide rail 202. A motor is fixedly installed at one end of the driving rod 201, and the motor is engaged with the electromagnetic slide rail 202. The top frame 2 can provide an installation position for the surrounding components. The electromagnetic slide rail 202 can push the driving rod 201 to move after being energized, so that the driving rod 201 and the motor slide horizontally between the two electromagnetic slide rails 202, thereby driving the welding assembly 1 to move. The driving rod 201 is a threaded rod that can cooperate with the slide 102. When the motor is energized and rotates to drive the driving rod 201 to rotate, it pushes the slide 102 to move horizontally. The motor adopts YE3-50KW type. After the motor is energized, it can rotate, thereby driving the driving rod 201 to rotate;

[0038] A welding assembly 1 is installed on the outer side of the driving rod 201 through a threaded structure. The welding assembly 1 can perform electric welding on the sheet metal after being powered on, and then weld the designated position of the sheet metal.

[0039] Furthermore, the welding assembly 1 includes a slide 102, a temperature sensor 111 is fixedly installed on the front of the slide 102, a drive motor 101 is fixedly installed on the back of the slide 102, and a drive wheel 103 is fixedly installed on the bottom of the drive motor 101, an electric telescopic rod 106 is fixedly installed on the bottom of the slide 102, and a welding head 107 is fixedly installed on the bottom of the electric telescopic rod 106, a threaded hole and a limiting hole are opened inside the slide 102, the threaded hole is consistent with the drive rod 201, and a limiting rod is installed through the inside of the limiting hole, one end of the limiting rod is fixedly connected to the housing of the motor, and can limit the slide 102 when the slide 102 slides horizontally to prevent the slide 102 from rotating synchronously with the drive rod 201. The temperature sensor 111 adopts Model D6T-44L-06, the temperature sensor 111 can detect the temperature of the sheet metal through infrared light, and when the temperature reaches the set temperature range, the welding assembly 1 is controlled to start welding the sheet metal. The drive motor 101 adopts the YE3-10KW model. When the drive motor 101 is energized, it can rotate, thereby driving the drive wheel 103 to rotate. The drive wheel 103 can drive the driven wheel 104 to rotate through the belt, thereby driving the bearing seat 105 to rotate on the outside of the sleeve 110. The electric telescopic rod 106 can drive the bottom component to move vertically, thereby adjusting the working height of the welding head 107. When the welding head 107 is energized, it can perform electric welding on the sheet metal, thereby connecting the sheet metal parts at the seam position;

[0040] The bottom of the slide 102 is located on the outside of the electric telescopic rod 106 and is fixedly installed with a sleeve 110. The outside of the sleeve 110 is covered with a bearing seat 105. The top of the bearing seat 105 is fixedly installed with a driven wheel 104, and the outside of the driven wheel 104 is connected to the driving wheel 103 through a belt. The outside of the bearing seat 105 is fixedly installed with a connecting frame 109. The bottom of the connecting frame 109 is fixedly installed with a correction wheel 108. The correction wheel 108 is an eccentric ring structure that deviates from the center of the welding head 107, and the inner wall of the correction wheel 108 is aligned with the side of the welding head 107. Surface contact, the sleeve 110 can provide an installation position for the surrounding components, the bearing seat 105 can rotate on the outside of the sleeve 110, and driven by the driven wheel 104, the bearing seat 105 can drive the connecting frame 109 and the correcting wheel 108 to rotate, thereby making the correcting wheel 108 rotate around the welding head 107, and applying thrust to the side of the welding head 107, so that the bent position of the welding head 107 returns to its original position, so that the welding head 107 can return to a vertical state after the work is completed, so as to ensure the welding accuracy during the next work.

[0041] Furthermore, a controller 203 is fixedly installed on one side of the top of the top frame 2, and a number of wires are fixedly installed on both sides of the controller 203. The controller 203 can be electrically connected to other electronic components in the device through the wires, and then the electronic components can be controlled through the controller 203, so that the electronic components cooperate with each other to complete the welding work.

[0042] Furthermore, two sets of cover plates 301 are installed on both sides of the shell 3 through hinges, and the cover plates 301 are consistent with the installation chamber. The cover plates 301 protect one side of the installation chamber, thereby preventing the internal part of the gas tank 307 from being damaged by impact from external objects during installation.

[0043] Furthermore, both ends of the electromagnetic coil 401 extend out of the mounting frame 4 to install a current controller 402, and the current controller 402 is fixedly connected to the top of the shell 3. The current controller 402 adopts the SEC611-R4 type. The current controller 402 can be connected to an external power supply to power the electromagnetic coil 401 and control the electric power of the electromagnetic coil 401, thereby regulating the heating effect of the sheet metal.

[0044] Furthermore, the welding table 303 is an arch-shaped metal structure, and a waste trough 302 is movably installed under the welding table 303. The waste trough 302 collects welding slag to facilitate centralized treatment of welding slag generated in the later stage, thereby preventing welding slag from remaining on the surface of the welding table 303 and causing damage to the outer surface of the sheet metal.

[0045] Furthermore, a fixing frame is fixedly installed inside the installation room, and a strap is fixedly installed on one side of the fixing frame. The fixing frame is engaged and connected with the gas tank 307. The fixing frame and the strap can fix the gas tank 307, thereby ensuring the stability of the gas tank 307 during operation and avoiding the formation of gaps at the connection position between the gas tank 307 and the guide tube 306, which may cause air leakage.

[0046] Furthermore, a sheet metal preparation process proposed by a sheet metal welding device includes the following steps:

[0047] In the first step, the sheet metal to be processed is placed on top of the welding table 303. The electromagnetic coil 401 is energized to generate an electromagnetic field, which electromagnetically heats the sheet metal at the center of the electromagnetic coil 401 to preheat the sheet metal. When the sheet metal is preheated to a set temperature range, the data detected by the temperature sensor 111 is transmitted to the controller 203, and the controller 203 then controls the welding assembly 1 to start welding.

[0048] In the second step, the preheated sheet metal is welded by the welding assembly 1. The welding head 107 is energized and slowly approaches the sheet metal. The welding head 107 is welded at a designated position on the sheet metal, so that the sheet metal is connected at the welded position. At the same time, the electromagnetic slide 202, the drive rod 201 and the electric telescopic rod 106 drive the welding head 107 to move along the X-axis, the Y-axis and the Z-axis, so that the welding head 107 can weld the sheet metal at multiple angles.

[0049] In the third step, after welding is completed, the processed sheet metal parts are taken out from the top of the welding table 303, and the welding assembly 1 itself is corrected. After the correction, the welding assembly 1 returns to its original position. After welding is completed, when the welding head 107 is in a high temperature state, the driving motor 101 is energized and rotates to drive the driving wheel 103 to rotate, so that the driving wheel 103 drives the driven wheel 104 to rotate, and the driven wheel 104 then drives the bearing seat 105, the connecting frame 109 and the correcting wheel 108 to rotate synchronously. The correcting wheel 108 applies a thrust to the side of the welding head 107 to restore the bent position of the welding head 107 to its original position. During the correction process, the electric telescopic rod 106 drives the welding head 107 to move slowly vertically, expanding the correction area of the correcting wheel 108 for the welding head 107 and improving the correction effect.

[0050] Working principle: After the device is assembled and confirmed to be correct, the sheet metal to be processed is placed on the top of the welding table 303, and the electromagnetic coil 401 is energized to preheat the sheet metal. At the same time, the protective gas inside the gas tank 307 is discharged through the guide tube 306 and the nozzle 305 to form an air curtain on the 4 sides of the installation frame and a protective environment around the sheet metal. The temperature of the sheet metal is detected by the temperature sensor 111. When the temperature of the sheet metal rises to within the set temperature range, the controller 203 controls the electromagnetic slide 202, the motor and the electric telescopic rod 106 respectively to move the welding assembly 1 in the X-axis, Y-axis and Z-axis. After the welding head 107 is energized, it is slowly approached to the sheet metal, and electric welding is performed on the sheet metal to be welded. After the sheet metal is connected by electric welding, the welding is completed. The connecting component 1 is withdrawn from the mounting frame 4. At the same time, when the welding head 107 is in a high-temperature state, the driving motor 101 is energized to rotate, driving the driving wheel 103 to rotate, and the driving wheel 103 drives the driven wheel 104 to rotate. The driven wheel 104 then drives the bearing seat 105, the connecting frame 109 and the correcting wheel 108 to rotate synchronously. The correcting wheel 108 applies a thrust to the side of the welding head 107 to restore the bent position of the welding head 107 to its original position. During the correction process, the electric telescopic rod 106 drives the welding head 107 to move slowly vertically, and the electromagnetic coil 401 gradually reduces the electric power, so that the temperature of the sheet metal gradually decreases under the control of the electromagnetic coil 401. After the temperature of the sheet metal gradually decreases, the sheet metal is taken out from the top of the welding table 303 to complete the welding preparation of the sheet metal.

[0051] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A sheet metal welding device, comprising a welding assembly (1), a top frame (2), a shell (3) and a mounting frame (4), characterized in that: Installation chambers are provided on both sides of the interior of the shell (3), and a gas tank (307) is fixedly installed inside the installation chambers. A flow guide tube (306) is fixedly installed on the top of the gas tank (307), and a mounting plate (304) is fixedly installed on the outer side of one end of the flow guide tube (306) away from the gas tank (307). The mounting plate (304) is fixedly connected to the inner wall of the installation chamber, one side of the mounting plate (304) faces the inner side of the shell (3), and a plurality of nozzles (305) are fixedly installed on one side of the mounting plate (304), one end of the nozzle (305) is fixedly connected to the flow guide tube (306), and a welding platform (303) is fixedly installed inside the shell (3), and a plurality of circular holes are provided inside the welding platform (303); A mounting frame (4) is fixedly mounted on the top of the welding table (303), and an electromagnetic coil (401) is fixedly mounted inside the mounting frame (4); A top frame (2) is fixedly mounted on the top of the housing (3), a square groove is provided inside the top frame (2), electromagnetic slide rails (202) are fixedly mounted on both sides of the interior of the top frame (2), a driving rod (201) is slidably mounted on the inner side of the electromagnetic slide rail (202), a motor is fixedly mounted on one end of the driving rod (201), and the motor is engaged and connected with the electromagnetic slide rail (202); A welding assembly (1) is mounted on the outer side of the driving rod (201) via a threaded structure; The welding assembly (1) includes a slide (102), a temperature sensor (111) is fixedly mounted on the front of the slide (102), a drive motor (101) is fixedly mounted on the back of the slide (102), and a drive wheel (103) is fixedly mounted on the bottom of the drive motor (101), an electric telescopic rod (106) is fixedly mounted on the bottom of the slide (102), and a welding head (107) is fixedly mounted on the bottom of the electric telescopic rod (106); The bottom of the slide (102) is located on the outside of the electric telescopic rod (106) and is fixedly installed with a sleeve (110). The outside of the sleeve (110) is sleeved with a bearing seat (105). The top of the bearing seat (105) is fixedly installed with a driven wheel (104), and the outside of the driven wheel (104) is connected to the driving wheel (103) through a belt. The outside of the bearing seat (105) is fixedly installed with a connecting frame (109), and the bottom of the connecting frame (109) is fixedly installed with a correction wheel (108). The correction wheel (108) is an eccentric circular ring structure that deviates from the center of the welding head (107), and the inner wall of the correction wheel (108) is in contact with the side of the welding head (107).

2. The sheet metal welding device according to claim 1, characterized in that: A controller (203) is fixedly mounted on one side of the top of the top frame (2), and a plurality of wires are fixedly mounted on both sides of the controller (203).

3. The sheet metal welding device according to claim 1, characterized in that: Two sets of cover plates (301) are installed on both sides of the housing (3) via hinges, and the cover plates (301) are aligned with the installation chamber.

4. The sheet metal welding device according to claim 1, characterized in that: Both ends of the electromagnetic coil (401) extend out of the mounting frame (4) and are respectively provided with a current controller (402), and the current controller (402) is fixedly connected to the top of the housing (3).

5. The sheet metal welding device according to claim 1, characterized in that: The welding platform (303) is an arch-shaped metal structure, and a waste trough (302) is movably installed below the welding platform (303).

6. The sheet metal welding device according to claim 1, characterized in that: A fixing frame is fixedly installed inside the installation chamber, and a strap is fixedly installed on one side of the fixing frame. The fixing frame is engaged and connected with the gas storage tank (307).

7. The sheet metal preparation process provided by the sheet metal welding device according to claim 1 comprises the following steps: In the first step, a sheet metal part to be processed is placed on top of a welding table (303), and the electromagnetic coil (401) is energized to generate an electromagnetic field, and the sheet metal part located at the center of the electromagnetic coil (401) is electromagnetically heated to preheat the sheet metal part; The second step is to perform electric welding on the preheated sheet metal parts through the welding assembly (1) so as to perform electric welding on the sheet metal parts; In the third step, after the welding is completed, the processed sheet metal part is taken out from the top of the welding table (303), and the welding assembly (1) itself is corrected. After the correction, the welding assembly (1) is restored to its original position.

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