A welding device and a welding piece fixing assembly thereof

Abstract

A kind of welding device, including welding piece fixed assembly, including support platform, positioning sliding block and fixed clamp;The positioning sliding block is installed above the support platform table top, is equipped with the first abutment surface and the second abutment surface towards outside and the included angle is less than or equal to 90 °;The first abutment surface and the second abutment surface are perpendicular to the support platform table top;The fixed clamp is equipped with the first pressure surface and the second pressure surface;The first pressure surface is oppositely arranged with the first abutment surface and is mutually adsorbed;The second pressure surface is oppositely arranged with the second abutment surface and is mutually adsorbed;Welding torch, can be moved relative to the welding piece fixed assembly;Base, the welding torch and the welding piece fixed assembly are located above and are supported by it respectively.In addition, the present application also provides a kind of welding piece fixed assembly.Compared with prior art, in the welding device and its welding piece fixed assembly of the present application, workpiece is easy to assemble and disassemble, weld gap is stable, and welding quality is high.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to a welding apparatus and its workpiece fixing assembly. Background Technology

[0002] Welding, a processing method that connects and fixes two workpieces together using solder, has a wide range of applications in production and processing.

[0003] During welding, two workpieces are joined together to form a weld. The welding torch heats the welding wire until it is molten, and then the flowing solder fills the weld. After the solder cools and solidifies, the two workpieces are fixed together. A weld of appropriate size and uniform spacing facilitates the flow and filling of the solder. Therefore, the stability and uniformity of the weld have a significant impact on the welding quality. During welding, the workpieces are generally placed stably on a horizontal surface, and the weld is positioned parallel to the horizontal plane. This allows the operator to observe from above and adjust the distance between the two workpieces, thus forming a weld of appropriate size and uniform spacing. Then, the flowing solder, under the influence of gravity, fills the stable weld to ensure welding quality.

[0004] However, for some frames, such as window frames, fireplace casings, etc., Figure 1 As shown, it is generally composed of mutually perpendicular plates joined together. During welding, adjacent plates are typically positioned with their surfaces perpendicular to the horizontal plane, and a weld perpendicular to the horizontal plane is formed at the joint ends of the two plates. However, this perpendicular weld not only makes it difficult for the operator to observe, but also easily leads to situations where the two plates are too far apart, the weld is too large, and it is difficult to fill the gap. Furthermore, the perpendicular plates are prone to wobbling during welding, causing changes in the weld spacing, further deteriorating the uniformity and stability of the weld, making it difficult to control the welding quality. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide a welding device that makes it easier to fix a workpiece with a plate surface perpendicular to it.

[0006] The technical solution adopted in this invention is as follows:

[0007] A welding apparatus, comprising

[0008] A welding component fixing assembly includes a support platform, a positioning slider, and a fixing clamp. The positioning slider is installed above the support platform surface and has a first abutment surface and a second abutment surface facing outwards with an included angle of less than or equal to 90°. The first abutment surface and the second abutment surface are perpendicular to the support platform surface. The fixing clamp has a first pressure surface and a second pressure surface. The first pressure surface and the first abutment surface are opposite to each other and attract each other. The second pressure surface and the second abutment surface are opposite to each other and attract each other.

[0009] The welding torch is movable relative to the workpiece fixing assembly;

[0010] The base, on which the welding torch and the workpiece fixing assembly are respectively located and supported, is situated.

[0011] Compared with existing technologies, the welding device of the present invention is equipped with a positioning slider and a fixing clamp that can attract each other. During welding, the two workpieces are respectively attached to the first and second abutment surfaces of the positioning slider and pressed by the first and second pressure surfaces of the fixing clamp, thereby fixing the vertically placed plates and maintaining a stable weld gap during the welding process. In addition, the fixing clamp is easy to install and remove, and the weld can be easily adjusted to a suitable size, improving the welding quality.

[0012] Furthermore, it also includes a rotating assembly, which includes a motor and a turntable; the motor is fixed to the base; the turntable is located above the base and rotates around a direction perpendicular to the support platform surface under the drive of the motor; the support platform is fixedly connected to the turntable and rotates accordingly, thereby rotating the support platform by the turntable to rotate the workpiece to a position that is convenient for welding, thus improving work efficiency.

[0013] Furthermore, the rotating assembly also includes an insulating assembly; the insulating assembly includes a conductive plate, an insulating base plate, a guide seat, a conductive metal rod, and a grounding terminal; the conductive plate is fixed to the side of the support platform facing the turntable; the insulating base plate is connected between the conductive plate and the turntable, with at least a portion of the conductive plate located on the outer periphery of the insulating base plate; the guide seat is fixed to and insulated from the base; the conductive metal rod is inserted into the guide seat, and one end is electrically connected to the conductive plate; one end of the grounding terminal is electrically connected to the conductive metal rod, and the other end is grounded, thereby realizing the discharge of current from the workpiece and improving safety.

[0014] Furthermore, the rotating assembly also includes a spring; the spring is located between the conductive metal rod and the guide seat, and generates a spring force on the conductive metal rod pointing towards the conductive plate, so that the conductive metal rod remains in contact with the conductive plate during the rotation of the turntable, further improving safety.

[0015] In addition, the present invention also provides a welding fastening assembly for securing workpieces with a vertical plate surface.

[0016] A welding component fixing assembly includes a support platform, a positioning slider, and a fixing clamp. The positioning slider is installed above the support platform surface and has a first abutment surface and a second abutment surface facing outward with an included angle of less than or equal to 90°. The first abutment surface and the second abutment surface are perpendicular to the support platform surface. The fixing clamp has a first pressure surface and a second pressure surface. The first pressure surface and the first abutment surface are opposite to each other and attract each other. The second pressure surface and the second abutment surface are opposite to each other and attract each other.

[0017] Compared with the prior art, the welding fixture of the present invention can quickly assemble and disassemble workpieces with the plate surface perpendicular, facilitate the adjustment of weld size, and firmly clamp the workpiece to prevent the workpiece from shaking during the welding process, which would lead to unstable weld spacing and improve welding quality.

[0018] Furthermore, it also includes a limiting block; the limiting block is fixed on the support platform; the positioning slider can slide to the limiting block and abut against it, thereby realizing the positioning of the positioning slider on the support platform.

[0019] Furthermore, it also includes a guide rail; the guide rail protrudes from the support platform surface and extends in a direction parallel to the support platform surface; the limiting block is located on the guide rail; the positioning slider is sleeved on the guide rail and slides along it, and the guide rail can guide the positioning slider to the limiting block, realizing the rapid sliding of the positioning slider, which is convenient for welding frames of different sizes, and can quickly adjust the position of the positioning slider according to the length of the workpiece.

[0020] Furthermore, the positioning slider is provided with a slider body, a first positioning block and a second positioning block; the first positioning block and the second positioning block are respectively protruding on the slider body and are made of metal that can be attracted by a magnet; the first abutting surface is located on the first positioning block and the second abutting surface is located on the second positioning block. By setting different first positioning blocks and second positioning blocks, the included angle between the first abutting surface and the second abutting surface can be adjusted, and the included angle between the two workpieces can be adjusted.

[0021] Furthermore, the fixing clamp includes a connecting rod assembly, a first pressure plate, a second pressure plate, and a magnet; the first pressure surface is located on the first pressure plate; the second pressure surface is located on the second pressure plate; the connecting rod assembly is connected between the first pressure plate and the second pressure plate; the magnet is fixed on the first pressure plate and the second pressure plate respectively, and the workpiece is clamped simply by magnetic force.

[0022] Furthermore, the linkage assembly includes a first linkage, a second linkage, and an intermediate linkage; the first linkage is fixed to the first pressure plate; the second linkage is fixed to the second pressure plate; the intermediate linkage is hinged to the first linkage and the second linkage respectively, and its hinge axis is perpendicular to the platform surface of the support platform. Through the rotation of the first pressure plate and the second pressure plate, the automatic fit between the first pressure surface and the first contact surface, and between the second pressure surface and the second contact surface is achieved.

[0023] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the workpiece to be welded in this invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of the welding device in this invention;

[0026] Figure 3 This is a schematic diagram of the overall structure of the welding and fixing assembly in this invention;

[0027] Figure 4 This is a schematic diagram of the positioning slider in this invention;

[0028] Figure 5 This is a top view of the positioning slider in this invention;

[0029] Figure 6 This is a schematic diagram of the positioning slider structure when projected along the extension direction of the guide rail in this invention;

[0030] Figure 7 This is a bottom view of the positioning slider and the limiting plate in this invention.

[0031] Figure 8 This is a bottom view of the limiting plate in this invention;

[0032] Figure 9 This is a schematic diagram of the fixing clip in this invention;

[0033] Figure 10 This is a top view of the fixing clip in this invention;

[0034] Figure 11 This is a partial front view of the rotating component in this invention;

[0035] Figure 12 for Figure 11 Cross-sectional view of the internal structure of the guide seat. Detailed Implementation

[0036] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, the term “and / or” as used herein is intended to include all possible combinations of one or more of the associated listed items; the singular forms “a,” “an,” and “described” as used herein are intended to include both singular and plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising” and / or “equivalent to” as used herein mean the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or components.

[0037] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, unless explicitly defined herein, the meanings of terms such as those found in common dictionaries should be consistent with their meanings in the relevant field and in the context of this document, rather than idealized or overly formalized meanings.

[0038] Numerous techniques and steps have been disclosed in the description of this invention. It should be understood that each of these techniques and steps has its own advantages, and each can be used in conjunction with one or more, or in some cases, all other disclosed techniques. Therefore, for clarity, this document will avoid unnecessary repetition of the various possible combinations of the individual steps. Of course, it should be made clear that these combinations are entirely within the scope of this invention and the claims.

[0039] In the following description, numerous specific details are set forth for ease of explanation and thorough understanding of the invention. However, it will be apparent that those skilled in the art can practice the invention without providing these specific details.

[0040] This disclosure is for the purpose of describing embodiments of the invention only, and is not intended to limit the invention to the specific embodiments illustrated in the following drawings or description. It is well known to those skilled in the art that many careful considerations and compromises must be made when designing the optimal configuration for a commercial implementation of any system, particularly embodiments of the invention. Based on the spirit and teachings of the invention, those skilled in the art can configure their commercial implementations according to the needs of a particular application, utilizing their average skill and known techniques, appropriately omitting, including, modifying, mixing, and matching, or improving and / or optimizing any one or more aspects, features, functions, results, components, methods, or steps related to any embodiment described in the invention to obtain a commercial implementation for the desired particular application.

[0041] The following example shows the welding of a fireplace outer frame, performed using the welding apparatus disclosed in this invention. Please refer to [link / reference]. Figure 1In this embodiment, the fireplace outer frame welded by the welding device is composed of four plates, including a first plate 1, a second plate 2, a third plate 3, and a fourth plate 4. The surfaces of the first plate 1, the second plate 2, the third plate 3, and the fourth plate 4 are all perpendicular to the horizontal plane, and the surfaces of adjacent plates are perpendicular to each other. The ends of the first plate 1, the second plate 2, the third plate 3, and the fourth plate 4 are connected sequentially to form a rectangular frame. A first weld 5, a second weld 6, a third weld 7, and a fourth weld 8 are formed at the junctions of the first plate 1, the second plate 2, the third plate 3, and the fourth plate 4.

[0042] Please see Figure 2 The welding device includes a base 10, a welding torch 20, a rotating assembly 30, and a workpiece fixing assembly 40. The base 10 is placed on a horizontal surface such as the ground and supports the welding torch 20, the rotating assembly 30, and the workpiece fixing assembly 40 located above it. The rotating assembly 30 drives the workpiece fixing assembly 40 to rotate around an axis perpendicular to the horizontal plane. The first plate 1, the second plate 2, the third plate 3, and the fourth plate 4 are fixed to the workpiece fixing assembly 40. As the workpiece fixing assembly 40 rotates, it moves to the welding torch 20 for welding, or the welding torch 20, driven by a robotic arm, can move to the positions of the first weld seam 5, the second weld seam 6, the third weld seam 7, and the fourth weld seam 8 located on the movable workpiece fixing assembly 40 for welding, ultimately producing a rectangular fireplace outer frame.

[0043] Please refer to Figure 3 The welding workpiece fixing assembly 40 includes a support platform 41, a guide rail 42, a positioning slider 43, a limiting plate 44, and a fixing clamp 45. The support platform 41 is mounted on the rotating assembly 30 and rotates accordingly. The guide rail 42 is mounted on the side of the support platform 41 facing away from the rotating assembly 30, and extends parallel to the surface of the support platform 41 away from its rotation axis. The positioning slider 43 is fitted onto the guide rail 42 and slides along it. The limiting plate 44 is located at the end of the guide rail 42 extending away from the rotation axis of the rotating assembly 30, and limits the positioning slider 43. The fixing clamp 45 is disposed opposite to the positioning slider 43 to clamp the workpiece located between them, thereby fixing the workpiece.

[0044] Please refer to the following: Figures 4 to 7The positioning slider 43 comprises a slider body 431, a first positioning block 432, a second positioning block 433, and a guide rail groove 434. The first positioning block 432 and the second positioning block 433 protrude from the slider body 431 and can be integrally formed with the slider body 431, or fixed to the slider body 431 by welding, bonding, or other methods, or movably installed onto the slider body 431 by screws or other means. The first positioning block 432 and the second positioning block 433 are made of a metal that can be attracted by a magnet, such as steel, and each has a first abutment surface 4321 and a second abutment surface 4331. Both the first abutment surface 4321 and the second abutment surface 4331 are perpendicular to the surface of the support platform 41 and projected along a direction perpendicular to the surface of the support platform 41. The first abutment surface 4321 and the second abutment surface 4331 face outwards from the slider body 431, and the included angle between them is less than or equal to 90 degrees. The first abutment surface 4321 and the second abutment surface 4331 can be separated or connected, forming a V-shaped structure with the apex located near the limiting plate 44 when projected perpendicularly to the platform surface of the support platform 41. In use, the surfaces of the first plate 1 and the second plate 2 abut against the first abutment surface 4321 and the second abutment surface 4331, respectively. Therefore, by selecting different positioning sliders 43 and installing them on the guide rail 42, the included angle between the first abutment surface 4321 and the second abutment surface 4331 can be adjusted, thereby adjusting the included angle between the first plate 1 and the second plate 2. The slider body 431 is provided with a positioning surface 4311, which abuts against the limiting plate 44 to achieve the positioning of the positioning slider 43. In this embodiment, there are two positioning surfaces 4311, located between the support platform 41 and the first positioning block 432, and between the support platform 41 and the second positioning block 433, respectively, and perpendicular to the platform surface of the support platform 41. Projected along the direction perpendicular to the platform surface of the support platform 41, the two positioning surfaces 4311 face the outer side of the slider body 431, and the included angle between the two positioning surfaces 4311 is less than or equal to 90°, forming a V-shaped structure with the vertex located near the limiting plate 44. The guide rail groove 434 is formed on the side of the slider body 431 facing the support platform 41 and extends through the slider body 431 along the extension direction of the guide rail 42. Projected along the extension direction of the guide rail 42, the guide rail groove 434 is fitted onto the outer side of the guide rail 42. Under the action of gravity, the top surface (not labeled) of the guide rail 42 facing away from the support platform 41 abuts against the bottom surface (not labeled) of the guide rail groove 434 facing the support platform 41.Furthermore, projecting along the extension direction of the guide rail 42, the cross-section of the guide rail 42 is T-shaped. In a direction parallel to the surface of the support platform 41, two protruding bumps 421 are respectively provided on both sides of the guide rail 42. The positioning slider 43 also has at least two first pads 435, each first pad 435 located within the guide rail groove 434. In a direction parallel to the surface of the support platform 41, they are respectively located on both sides of the guide rail 42 and extend towards the guide rail 42 in a direction parallel to the support platform 41, so that the guide rail 42 is essentially kept in the middle of the guide rail groove 434. Each bump 421 is located between the bottom surface of the guide rail groove 434 and the first pad 435 on each side, thereby preventing the positioning slider 43 from being moved away from the support platform 41 by external force during the welding process, thus preventing the positioning slider 43 from derailing. Preferably, in the direction perpendicular to the surface of the support platform 41, the gap between the protrusion 421 and the first pad 435 is greater than or equal to 0.5 mm to ensure that the positioning slider 43 slides smoothly on the guide rail 42. Furthermore, in this embodiment, the guide rail groove 434 is formed on the side of the positioning slider 43 facing the support platform 41, and the guide rail 42 protrudes from the support platform 41. However, those skilled in the art can, according to actual needs, form the guide rail groove 434 on the support platform 41, with the guide rail 42 protruding from the side of the positioning slider 43 facing the support platform 41, and the guide rail groove 434 fitted over the guide rail 42, which can also guide the positioning slider 43 along a certain trajectory to the position abutting against the limiting plate 44.

[0045] Please see Figure 8The limiting plate 44 includes a plate body 441, a guide rail mounting groove 442, and a slider abutment groove 443. The guide rail mounting groove 442 is formed on the side of the plate body 441 facing the support platform 41 and extends along the direction of the guide rail 42. In use, the plate body 441 is fixed to the support platform 41 or the guide rail 42 by screws or the like, and the guide rail mounting groove 442 is fitted onto the outer side of one end of the guide rail 42. Preferably, the guide rail mounting groove 442 extends through the plate body 441 along the extension direction of the guide rail 42, and the guide rail mounting groove 442 and the guide rail 42 are interference fit, so as to facilitate the positioning of the limiting plate 44 according to the length of the workpiece to be welded. The slider abutment groove 443 is formed on the side of the plate body 441 facing the positioning slider 43, and its groove surface abuts against the positioning slider 43. In this embodiment, projected along a direction perpendicular to the surface of the support platform 41, the slider abutment groove 443 is V-shaped. The groove surface of the V-shape abuts against the first abutment surface 4321 and the second abutment surface 4331 respectively, thereby achieving the positioning of the positioning slider 43. When the cross-section of the guide rail 42 is T-shaped, two or more second shims 444 are further provided in the guide rail mounting groove 442. Each second shim 444 is respectively provided on both sides of the guide rail 42 and extends along a direction parallel to the surface of the support platform 41 to the guide rail 42. The protrusion 421 of the guide rail 42 is located between the second shim 444 and the bottom surface of the guide rail groove 434, so that the guide rail 42 is kept in the middle of the guide rail mounting groove 442 while preventing derailment.

[0046] Please refer to the following: Figure 9 and Figure 10The fixing clamp 45 includes a connecting rod assembly 451, a first pressure plate 452, a second pressure plate 453, and magnets 454. The surfaces of both the first pressure plate 452 and the second pressure plate 453 are perpendicular to the surface of the support platform 41. The first pressure plate 452 and the second pressure plate 453 are respectively provided with a first pressure surface 4521 opposite to the first abutment surface 4321 and a second pressure surface 4531 opposite to the second abutment surface 4331. Accordingly, projected along a direction perpendicular to the surface of the support platform 41, the included angle between the first pressure surface 4521 and the second pressure surface 4531 is less than or equal to 90°. The connecting rod assembly 451 connects the first pressure plate 452 and the second pressure plate 453. Pulling the connecting rod assembly 451 along a direction perpendicular to the surface of the support platform 41 can simultaneously move both the first pressure plate 452 and the second pressure plate 453. There are two or more magnets 454, which are respectively embedded within the first pressure plate 452 and the second pressure plate 453. The first plate 2 to be welded is located between the first pressing surface 4521 and the first abutting surface 4321, and the second plate 3 is located between the second pressing surface 4531 and the second abutting surface 4331. Under the action of the magnet 454, the first pressing surface 4521 tends to adhere to the first abutting surface 4321, and the second pressing surface 4531 tends to adhere to the second abutting surface 4331, thereby clamping the first plate 2 and the second plate 3. Further, the connecting rod assembly 451 includes a first connecting rod 4511, a second connecting rod 4512, and an intermediate connecting rod 4513. One end of the first connecting rod 4511 is fixed to the first pressure plate 452, and one end of the second connecting rod 4512 is fixed to the second pressure plate 453. Both the first connecting rod 4511 and the second connecting rod 4512 extend upwards along a direction perpendicular to the surface of the support platform 41. The intermediate connecting rod 4513 is located between and hinged to the other ends of the first connecting rod 4511 and the second connecting rod 4512, with its hinge axis perpendicular to the surface of the support platform 41, allowing the first pressure plate 452 and the second pressure plate 453 to rotate about an axis perpendicular to the surface of the support platform 41. Automatic correction is achieved by adjusting the angle between the first plate 2 and the second plate 3, and adjusting the angle between the first pressure surface 4521 and the second pressure surface 4531.

[0047] Furthermore, in this embodiment, argon arc welding technology is used to weld the workpiece. During welding, current flows from the welding torch to the workpiece, making the workpiece electrified. To improve safety, both the first pressure plate 452 and the second pressure plate 453 are made of bakelite.

[0048] Please refer to the following: Figure 1 , Figure 11 and Figure 12The rotating assembly 30 includes a motor 31, a turntable 32, and an insulating assembly 33. The motor 31 is fixed to the base 10. The turntable 32 is located above the base 10, its surface parallel to the support platform 41, and connected to the output shaft of the motor 31. Driven by the motor 31, the turntable 32 rotates about an axis perpendicular to the support platform 41. The support platform 41 is located above the turntable 32 and rotates accordingly. The insulating assembly 33 includes a conductive plate 331, an insulating base plate 332, a guide seat 333, a conductive metal rod 334, a spring 335, and a grounding terminal 336. The conductive plate 331 is made of conductive metal and is fixed to the side of the support platform 41 facing the turntable 32. The insulating base plate 332 is located between the conductive plate 331 and the turntable 32 to prevent the turntable 32 from becoming electrified. Projecting along a direction perpendicular to the surface of the support platform 41, the projected area of ​​the conductive plate 331 is larger than the projected area of ​​the insulating base plate 332. At least a portion of the conductive plate 331 is located on the outer periphery of the insulating base plate 332 to facilitate contact between the conductive metal rod 334 and the conductive plate 331. The guide seat 333 is fixed on the base 10. The guide seat 333 may be made of insulating materials such as plastic, or a rubber gasket (not shown) may be provided between the guide seat 333 and the base 10 to prevent the base 10 from becoming electrified. The guide seat 333 has a hole (not labeled) axially perpendicular to the surface of the support platform 41. One end of the conductive metal rod 334 is inserted into the hole of the guide seat 333, and the other end contacts the conductive plate 331, and can move relative to the guide seat 333 along a direction perpendicular to the surface of the support platform 41. The spring 335 is located between the bottom surface of the hole in the guide seat 333 and the conductive metal rod 334. When the conductive metal rod 334 moves into the guide seat 333, the spring 335 generates a spring force pointing towards the conductive plate 331 to push the conductive metal rod 334 towards the conductive plate 331, so that the conductive metal rod 334 remains electrically connected to the conductive plate 331. The grounding terminal 336 is located outside the guide seat 333, one end of which is fixed to and electrically connected to the conductive metal rod 334, and the other end is grounded, thereby conducting the current from the workpiece.

[0049] In this embodiment, projected perpendicular to the horizontal plane, the support platform 41 is cross-shaped, with the rotation axis of the turntable 32 passing through the center of the cross. The welding torch 20 is located outside the support platform 41. There are four guide rails 42, four positioning sliders 43, four limiting plates 44, and four fixing clamps 45. Projected perpendicular to the surface of the support platform 41, the included angle between two adjacent guide rails 42 is 90°. The ends of the first plate 1, the second plate 2, the third plate 3, and the fourth plate 4 are sequentially connected in their extending directions to form a rectangular frame, and the first weld 5, the second weld 6, the third weld 7, and the fourth weld 8 are sequentially formed at the ends of each guide rail 42 away from the rotation center of the turntable 32. The positioning slider 43 and the limiting plate 44 are respectively located at the end of each guide rail 42 away from the center of the turntable 32 to press against the inner side of the rectangular frame. The fixing clip 45 is located on the outer side of the rectangular frame and is attracted to the positioning slider 43, thereby stabilizing the connection between the first plate 1, the second plate 2, the third plate 3 and the fourth plate 4. When the turntable 32 is rotated, the welding fixing assembly 40 rotates accordingly, and the first weld 5, the second weld 6, the third weld 7 and the fourth weld 8 are moved to the welding gun 20 in sequence for welding. After welding is completed, the fixing clips 45 are removed, the rectangular frame is disassembled, and then other plates with the first plate 1, the second plate 2, the third plate 3 and the fourth plate 4 are directly placed and fixed with the fixing clips 45 again to continue welding another frame. It is simple and quick.

[0050] When the lengths of the first plate 1, the second plate 2, the third plate 3, and the fourth plate 4 change, each limiting plate 44 is disassembled, and the fixed positions of each limiting plate 44 on the guide rail 42 are readjusted according to the length of the workpiece. Each positioning slider 43 is slid again so that each positioning slider 43 is connected to each limiting plate 44 respectively. Then, the first plate 1, the second plate 2, the third plate 3, and the fourth plate 4 are reinstalled and fixed by each fixing clamp 45 before welding can be performed.

[0051] Compared with the prior art, the welding apparatus and welding fixing assembly of the present invention have the following advantages:

[0052] 1. The workpiece is firmly clamped during the welding process, which can maintain a stable weld spacing and improve the welding quality;

[0053] 2. Easy to assemble and disassemble, and convenient to adjust the size of the weld;

[0054] 3. Facilitates welding with a welding torch, improving work efficiency;

[0055] 4. High security.

[0056] 5. It can quickly switch between workpieces of different lengths for welding.

[0057] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A welding apparatus, characterized in that: include A welding component fixing assembly includes a support platform, a positioning slider, and a fixing clamp. The positioning slider is installed above the support platform surface and has a first abutment surface and a second abutment surface facing outward with an included angle of less than or equal to 90°. The first abutment surface and the second abutment surface are perpendicular to the support platform surface. The fixing clamp includes a connecting rod assembly, a first pressure plate, a second pressure plate, and a magnet. The connecting rod assembly includes a first connecting rod, a second connecting rod, and an intermediate connecting rod. The first pressure plate is fixed to one end of the first connecting rod, the second pressure plate is fixed to one end of the second connecting rod, and the two ends of the intermediate connecting rod are respectively hinged to the other ends of the first connecting rod and the second connecting rod. The first pressure plate and the second pressure plate are respectively provided with a first pressure surface and a second pressure surface. The magnet is respectively installed on the first pressure plate and the second pressure plate, such that the first pressure surface and the first abutment surface are opposite to each other and attract each other, and the second pressure surface and the second abutment surface are opposite to each other and attract each other. The welding torch is movable relative to the workpiece fixing assembly; The base, the welding torch and the workpiece fixing assembly are respectively located above the base and supported by the base.

2. The welding apparatus according to claim 1, characterized in that: It also includes a rotating assembly, which includes a motor and a turntable; the motor is fixed to the base; the turntable is located above the base and rotates about a direction perpendicular to the surface of the support platform under the drive of the motor; the support platform is fixedly connected to the turntable and rotates accordingly.

3. The welding apparatus according to claim 2, characterized in that: The rotating assembly further includes an insulating assembly; the insulating assembly includes a conductive plate, an insulating base plate, a guide seat, a conductive metal rod, and a grounding terminal; the conductive plate is fixed to the side of the support platform facing the turntable; the insulating base plate is connected between the conductive plate and the turntable, with at least a portion of the conductive plate located on the outer periphery of the insulating base plate; the guide seat is fixed to and insulated from the base; the conductive metal rod is inserted into the guide seat, and one end is electrically connected to the conductive plate; one end of the grounding terminal is electrically connected to the conductive metal rod, and the other end is grounded.

4. The welding apparatus according to claim 3, characterized in that: The rotating assembly also includes a spring; the spring is located between the conductive metal rod and the guide seat, and exerts a spring force on the conductive metal rod pointing towards the conductive plate.

5. A welding component fixing assembly, characterized in that: The device includes a support platform, a positioning slider, and a fixing clamp. The positioning slider is installed above the support platform surface and has a first abutment surface and a second abutment surface facing outwards with an included angle of less than or equal to 90°. The first abutment surface and the second abutment surface are perpendicular to the support platform surface. The fixing clamp includes a connecting rod assembly, a first pressure plate, a second pressure plate, and a magnet. The connecting rod assembly includes a first connecting rod, a second connecting rod, and an intermediate connecting rod. The first pressure plate is fixed to one end of the first connecting rod, the second pressure plate is fixed to one end of the second connecting rod, and the two ends of the intermediate connecting rod are respectively hinged to the other ends of the first connecting rod and the second connecting rod. The first pressure plate has a first pressure surface, and the second pressure plate has a second pressure surface. The magnet is fixed to the first pressure plate and the second pressure plate, such that the first pressure surface and the first abutment surface are opposite to each other and attract each other, and the second pressure surface and the second abutment surface are opposite to each other and attract each other.

6. The weldment fixing assembly according to claim 5, characterized in that: It also includes a limiting block; the limiting block is fixed on the support platform; the positioning slider can slide to the limiting block and abut against it.

7. The weldment fixing assembly according to claim 6, characterized in that: It also includes a guide rail; the guide rail protrudes from the support platform surface and extends in a direction parallel to the support platform surface; the limiting block is located on the guide rail; the positioning slider is sleeved on the guide rail and slides along the guide rail.

8. The welding component fixing assembly according to claim 5, characterized in that: The positioning slider has a slider body, a first positioning block and a second positioning block; the first positioning block and the second positioning block are respectively protruding on the slider body and are made of metal that can be attracted by a magnet; the first abutting surface is located on the first positioning block and the second abutting surface is located on the second positioning block.

9. The welding component fixing assembly according to claim 8, characterized in that: The hinge axis of the intermediate connecting rod is perpendicular to the surface of the support platform.

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