A welding auxiliary device for engineering machinery

Abstract

The present invention provides a welding auxiliary device for engineering machinery, comprising: a beam mechanism, a first rotating mechanism, a second rotating mechanism, a positioning mechanism and a clamping mechanism; the first rotating mechanism is arranged on both sides of the beam mechanism along the second direction, and can drive the beam mechanism to rotate along the axis of the second direction; the second rotating mechanism includes a rotating assembly and a driven assembly; the rotating assembly and the driven assembly are both slidably arranged on the beam mechanism, and a placement area for workpieces to be welded can be formed between them; the rotating assembly can drive the workpieces to be welded placed in the placement area to rotate along the axis of the first direction; the positioning mechanism is at least arranged on one of the rotating assembly and the driven assembly; the positioning mechanism can limit the workpieces to be welded in multiple directions; the clamping mechanism and the positioning mechanism are arranged on the same side, and the clamping mechanism can slide along the third direction to limit and clamp the workpieces to be welded. It is suitable for welding assistance of large workpieces to be welded in engineering machinery to achieve the purpose of efficient welding.

Description

Technical Field

[0001] The present invention relates to the field of welding auxiliary technology, and in particular to welding auxiliary equipment for engineering machinery. Background Art

[0002] With the continuous improvement of scientific and technological productivity, the traditional manual operation mode is gradually being replaced by automated equipment. With the continuous support of the state for scientific and technological enterprises and large factories and the stimulation of various preferential policies, the traditional labor-intensive production mode is undergoing a new round of technological upgrades. Especially in the heavy industry, the realization of automation not only improves production efficiency, but also reduces the incidence of accidents. Traditional oversized workpieces are difficult to clamp and flip due to the influence of workpiece shape, weight, and weld distribution position. Usually, manual cranes are used for displacement. Some welds are too high, especially some key special welds, which must be welded at high positions, increasing the platform for manual operation, affecting work efficiency and investment costs. Summary of the invention

[0003] The invention discloses a welding auxiliary device for engineering machinery, which has a simple structure and is easy to operate, and is intended to improve the problems of inconvenience in welding and difficulty in clamping and limiting of workpieces to be welded of engineering machinery.

[0004] The present invention adopts the following scheme:

[0005] The present application provides a welding auxiliary equipment for engineering machinery, comprising: a beam mechanism, a first rotating mechanism, a second rotating mechanism, a positioning mechanism and a clamping mechanism; the beam mechanism is arranged horizontally along its length in a first direction; the first rotating mechanism is arranged on both sides of the beam mechanism along the second direction, and can drive the beam mechanism to rotate along the axis of the second direction; the second rotating mechanism is arranged on the beam mechanism, which includes a rotating component and a driven component arranged at both ends of the beam mechanism opposite to each other along the first direction; the rotating component and the driven component are both slidably arranged on the beam mechanism, and a placement area for workpieces to be welded can be formed therebetween; the rotating component can drive the workpieces to be welded placed in the placement area to rotate along the axis of the first direction; the positioning mechanism is at least arranged on one of the rotating component and the driven component, and the positioning mechanism can limit the workpiece to be welded in multiple directions; the clamping mechanism and the positioning mechanism are arranged on the same side, and the clamping mechanism can slide in a third direction to limit and clamp the workpiece to be welded.

[0006] As a further improvement, the crossbeam mechanism is provided with mounting ears extending on both sides of the middle portion roughly along its length, the first rotating mechanism is hingedly clamped on the two mounting ears, and can rotate the entire crossbeam mechanism under the drive of the main rotating end of the first rotating mechanism.

[0007] As a further improvement, the driving sources of the rotating assembly and the main rotating end are both constructed in a manner where a reducer cooperates with a motor to drive the rotation.

[0008] As a further improvement, the rotating component and the driven component are both constructed as L-shaped placement substrates, each of which can be rotatably configured on both sides of the beam mechanism, and the two placement substrates on different sides are arranged opposite to each other to form an L-shaped placement area on each side for supporting the workpiece to be welded.

[0009] As a further improvement, the placement substrate is slidably arranged on the beam mechanism through the base, and the placement substrate is hingedly arranged on the inner side of the base.

[0010] As a further improvement, the positioning mechanism at least includes a centering clamping member arranged in the placement area and along the horizontal transverse direction and at least one limiting abutment member arranged along the horizontal longitudinal direction. The limiting abutment member is used to limit the movement tendency of the workpiece to be welded along the side of the placement substrate. The centering clamping member includes a clamping block that can be relatively close or far away, which is used to clamp the workpiece in the horizontal transverse direction after the workpiece to be welded is placed.

[0011] As a further improvement, the two clamping blocks can be synchronously slidably arranged on the placement area, and at least one axial positioning piece is arranged between the two clamping blocks, and the positioning piece can be nested and engaged with the workpiece along the axial direction.

[0012] As a further improvement, the first slewing mechanism and the crossbeam mechanism, as well as the base and the placement substrate are connected in a slewing bearing manner.

[0013] As a further improvement, the clamping mechanism is slidably arranged on one side of the placement substrate; the clamping mechanism comprises at least a pair of swing arms, and the swing arms are rotatably arranged above the placement area and are arranged opposite to the placement area.

[0014] As a further improvement, the swing arm has a first position that blocks the top of the placement area and can be pressed on the workpiece and avoids the placement area to allow the workpiece to be placed directly from the top to the second position of the placement area, and the two swing arms can be driven by a driving mechanism to synchronously switch between the first position and the second position.

[0015] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0016] The welding auxiliary equipment of the present application is suitable for welding auxiliary of large workpieces to be welded in engineering machinery to achieve the purpose of efficient welding. Among them, the first rotating mechanism drives the crossbeam mechanism to rotate along the axis of the second direction, and the rotating assembly of the second rotating mechanism drives the workpiece to be welded to rotate along the axis of the first direction, so as to support the workpiece to be welded to flip to the best welding position along multiple axis directions, which is beneficial to the subsequent welding process. More importantly, the positioning mechanism and the clamping mechanism configured on the rotating assembly and / or the driven assembly of the second rotating mechanism can limit and clamp the workpiece to be welded placed in the placement area in multiple directions, which plays an efficient constraint role. In addition, the positioning mechanism and the clamping mechanism are both configured on the crossbeam mechanism in a slidable manner through the second rotating mechanism, and the clamping mechanism can be slidably adjusted along the third direction, so that it has great compatibility, is conducive to the positioning and clamping of special-shaped workpieces to be welded of different sizes, is convenient to operate, and can efficiently clamp the workpiece to avoid dislocation or separation during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 1 is a schematic structural diagram of a welding auxiliary device for engineering machinery according to an embodiment of the present invention;

[0019] Figure 2 yes Figure 1 A schematic diagram of the structure from another perspective;

[0020] Figure 3 This is an application scenario diagram of a welding auxiliary device for engineering machinery according to an embodiment of the present invention;

[0021] Figure 4 It is a structural schematic diagram of a crossbeam mechanism of a welding auxiliary device for engineering machinery according to an embodiment of the present invention;

[0022] Figure 5 It is a structural schematic diagram of a placement base plate of a welding auxiliary device for engineering machinery according to an embodiment of the present invention;

[0023] Figure 6 1 is another structural schematic diagram of a placement substrate of a welding auxiliary device for engineering machinery according to an embodiment of the present invention, wherein some structures are hidden for the convenience of display;

[0024] Figure 72 is a schematic structural diagram of a clamping mechanism for a welding auxiliary device for engineering machinery according to an embodiment of the present invention, wherein the swing arm is in the second position in the upper figure and in the lower figure the swing arm is in the first position.

[0025] Icons: 1-beam mechanism; 11-mounting ear; 12-track; 13-slide; 2-first rotary mechanism; 3-second rotary mechanism; 3A-rotation assembly; 3B-driven assembly; 31-placement substrate; 32-base; 4-positioning mechanism; 41-centering clamp; 411-block; 42-limiting abutment; 43-axial positioning member; 5-clamping mechanism; 51-swing arm; 52-pressing pad; 6-driving mechanism; 7-slide rail; 8-slider; 9-trapezoidal screw; 10-stop member; C-workpiece to be welded; X-first direction; Y-second direction; Z-third direction. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] Example

[0032] Combination Figures 1 to 6 The present embodiment provides a welding auxiliary device for engineering machinery, comprising: a beam mechanism 1, a first rotating mechanism 2, a second rotating mechanism 3, a positioning mechanism 4 and a clamping mechanism 5. The beam mechanism 1 is arranged horizontally along its length in the first direction X. The first rotating mechanism 2 is arranged on both sides of the beam mechanism 1 along the second direction Y, and can drive the beam mechanism 1 to rotate along the axis of the second direction Y. The second rotating mechanism 3 is arranged on the beam mechanism 1, which includes a rotating component 3A and a driven component 3B arranged at both ends of the beam mechanism 1 opposite to each other along the first direction X. The rotating component 3A and the driven component 3B are both slidably arranged on the beam mechanism 1, and a placement area for the workpiece C to be welded can be formed therebetween. The rotating component 3A can drive the workpiece C to be welded placed in the placement area to rotate along the axis of the first direction X. The positioning mechanism 4 is at least arranged on one of the rotating component 3A and the driven component 3B, and the positioning mechanism 4 can limit the workpiece C to be welded in multiple directions. The clamping mechanism 5 and the positioning mechanism 4 are arranged on the same side, and the clamping mechanism 5 can slide along the third direction Z to limit and clamp the workpiece C to be welded.

[0033] The welding auxiliary equipment in this embodiment is suitable for welding auxiliary of large workpieces C to be welded in engineering machinery to achieve the purpose of efficient welding. Among them, the first rotating mechanism 2 drives the crossbeam mechanism 1 to rotate along the axis of the second direction Y, and cooperates with the rotating assembly 3A of the second rotating mechanism 3 to drive the workpiece C to be welded to rotate along the axis of the first direction X, so as to support the workpiece C to be welded to be turned to the best welding position along multiple axis directions, which is beneficial to the subsequent welding process. It is particularly important that the positioning mechanism 4 and the clamping mechanism 5 configured on the rotating assembly 3A and / or the driven assembly 3B of the second rotating mechanism 3 can limit and clamp the workpiece C to be welded placed in the placement area in multiple directions, and play an efficient constraint role. In addition, the positioning mechanism 4 and the clamping mechanism 5 are both slidably configured on the crossbeam mechanism 1 through the second rotating mechanism 3, and the clamping mechanism 5 can be slidably adjusted along the third direction Z, so that it has great compatibility, is conducive to the positioning and clamping of special-shaped workpieces C to be welded of different sizes, is easy to operate, and can efficiently clamp the workpiece to avoid dislocation or separation during rotation.

[0034] It should be mentioned that, preferably, the first direction X, the second direction Y and the third direction Z are arranged perpendicular to each other.

[0035] In one embodiment, the beam mechanism 1 is provided with mounting ears 11 extending along both sides of the middle part of the length direction thereof, and the first rotary mechanism 2 is hingedly clamped on the two mounting ears 11, and can rotate the entire beam mechanism 1 under the drive of the main rotating end of the first rotary mechanism 2. Thus, the first rotary mechanism 2 drives the beam mechanism 1 to rotate along the second direction Y axis, so that the entire device can rotate and adjust the position under the rotary support of the first rotary mechanism 2, forming a large-amplitude rotation, so as to achieve the effect of overall adjustment.

[0036] Please refer to the figure. In one embodiment, the rotating assembly 3A and the driven assembly 3B are both constructed as L-shaped placement substrates 31. Each placement substrate 31 can be rotatably arranged on both sides of the beam mechanism 1, and the two placement substrates 31 on different sides are arranged opposite to each other to form an L-shaped placement area on each side to support the workpiece C to be welded. In this way, the workpiece C to be welded is stably arranged on the two placement areas in a horizontal manner, and driven by the rotating assembly 3A, the driven assembly 3B is driven to rotate, so as to drive the workpiece C to be welded to rotate along the first direction X axis, so as to cooperate with the first rotating mechanism 2 to perform another small amplitude rotation on the beam mechanism 1, and play the role of directly adjusting the rotation adjustment position of the workpiece C to be welded, which is conducive to the smooth progress of the subsequent welding process. Through two axis rotations in different directions, full preparation is made for the dead angle welding of the workpiece C to be welded.

[0037] In particular, the placement substrate 31 is slidably arranged on the beam mechanism 1 through the base 32, and the placement substrate 31 is hingedly arranged on the inner side of the base 32. It should be mentioned that the configuration method of the base 32 on the beam mechanism 1 can be that the beam mechanism 1 is provided with a track 12 and a slide 13 that slides with the track 12 along the first direction X, the base 32 is arranged on the slide 13, and the base 32 can be controlled by an external drive to move along the track 12 to adjust the position and be firmly placed on the track 12 after adjusting to fit the size of the workpiece C to be welded, so as to limit and stabilize the workpiece C to be welded. In addition, the bases 32 on different placement substrates 31 can be controlled by different external drives to independently adjust the position, so that the adjustment method is more flexible and effective. In addition, the hinged configuration between the placement substrate 31 and the base 32 can be in the form of a slewing bearing. Among them, the slewing bearing is composed of inner and outer rings, rolling elements, etc. The slewing bearing is a large bearing that can withstand comprehensive loads and can simultaneously withstand large axial and radial loads and overturning moments, thereby facilitating efficient slewing configuration. Similarly, the first slewing mechanism 2 and the crossbeam mechanism 1 can also be slewed by the above-mentioned slewing bearing method, which will not be described in detail. In particular, the crossbeam mechanism 1 is constructed by welding low-carbon alloy steel plates and rectangular tube profiles.

[0038] It should be noted that the driving sources of the rotating assembly 3A and the main rotating end are both constructed in a manner that a reducer cooperates with a motor to drive the rotation. Specifically, the driving source directly transmits power to the rotating assembly 3A / main rotating end through a transmission connection, and the driven assembly 3B / slave rotating end can rotate together to achieve a rotary mechanism with only one power source, thereby rotating as a whole along the axis in one direction. By using a precision reducer plus an external shaft motor, the output end of the driving source can mesh with the slewing bearing for transmission, making the rotation method more stable and efficient.

[0039] See also Figure 2 and Figure 5 In one embodiment, specifically, the positioning mechanism 4 at least includes a centering clamping member 41 disposed in the placement area and arranged along the horizontal transverse direction and at least one limiting abutment member 42 disposed along the horizontal longitudinal direction. The limiting abutment member 42 is used to limit the movement tendency of the workpiece C to be welded along the side of the placement substrate 31. The centering clamping member 41 includes a clamping block 411 that can be relatively close or far away, which is used to clamp the workpiece in the horizontal transverse direction after the workpiece C to be welded is placed. Among them, the limiting abutment member 42 is constructed as a protruding structure, so that the workpiece placed in the placement area can abut on the protruding structure, limiting the movement of the workpiece along the side close to the long side end of the substrate. In addition, the centering clamping mechanism can adjust the workpiece placed in the placement area to a roughly central configuration under the push of the clamping block 411, and tighten the workpiece under the clamping of the two clamping blocks 411.

[0040] In a preferred embodiment, the two clamping blocks 411 can be synchronously slidably arranged on the placement area, and at least one axial positioning member 43 is arranged between the two clamping blocks 411, and the positioning member can be nested and engaged with the workpiece along the axial direction. The workpiece enters the placement area through hoisting, and the workpiece is directly engaged with the axial positioning member 43, so that the workpiece is directly arranged in the center, and then the two clamping blocks 411 are adjusted to be close to abut against the workpiece, so as to clamp the workpiece in the center. The driving method of the two clamping blocks 411 of the centering clamping mechanism can be synchronously driven by a double-screw guide rail, or can be directly driven to move the clamping blocks 411 by different push rods respectively. There is no limitation here, and it can achieve the centering movement to clamp the workpiece or to move away from the workpiece.

[0041] See also Figure 2 , Figure 5 and Figure 7 In one embodiment, specifically, the clamping mechanism 5 is slidably arranged on one side of the placement substrate 31. The clamping mechanism 5 includes at least a pair of swing arms 51, which are rotatably arranged above the placement area and are arranged opposite to the placement area. The swing arm 51 has a first position that blocks the top of the placement area and can be pressed against the workpiece and a second position that avoids the placement area to allow the workpiece C to be welded to be directly placed from the top to the placement area, and the two swing arms 51 can be driven by the driving mechanism to switch between the first position and the second position synchronously.

[0042] In this embodiment, the pair of swing arms 51 of the clamping mechanism 5 can be switched to the second position when the workpiece C to be welded is hoisted and placed in the placement area in the vertical direction, thereby avoiding the upper space to avoid interference or collision. After the workpiece C to be welded is placed, the two swing arms 51 are driven by the driving mechanism to switch from the second position to the first position, and after the clamping mechanism 5 slides vertically along the placement base plate 31, the swing arms 51 in the first position can be pressed on the workpiece, so that the workpiece is restricted and constrained on the placement area through the cooperation of the positioning mechanism 4 and the clamping mechanism 5. The operation is convenient and flexible, and it is suitable for various types of workpiece hoisting and placement methods.

[0043] See also Figure 5 , Figure 6 and Figure 7In one embodiment, the placement substrate 31 is roughly in the shape of an L-shaped plate. The placement area is formed at the short side end of the L-shaped plate, and the clamping mechanism 5 is arranged at the long side end of the L-shaped plate. Specifically, the long side end of the placement substrate 31 is vertically configured with a slide rail 7 and a slider 8 that is slidably adapted to the slide rail 7, and the clamping mechanism 5 is arranged on the slider. The slider 8 drives the trapezoidal lead screw 9 via a motor (not shown) to slide along the direction of the slide rail 7, so that the clamping mechanism 5 is pressed onto the workpiece C to be welded. Thus, the motor drives the slider 8 to move along the direction of the slide rail 7, driving the swing arm 31 in the first position on the clamping mechanism 5 to press down the workpiece C to be welded, thereby achieving the clamping and fixing of the workpiece C to be welded. In addition, the slider is arranged on the nut of the trapezoidal lead screw 9, which can follow the nut to rise and fall and slide along the direction of the lead screw, correspondingly clamping the workpiece C to be welded or releasing the clamping of the workpiece C to be welded, and the use of the trapezoidal lead screw 9 makes the pressing force more stable and effective.

[0044] In one embodiment, in particular, a stopper 10 is disposed at the end surface of the placement substrate 31 where the slide rail 7 is located, and the stopper 10 can limit the swing arm 51 from continuing to rotate when the swing arm 51 switches to the first position. Among them, the stopper 10 is protruding on the end surface of the placement substrate 1 and is arranged in the same direction as the slide rail 7. The stopper 10 is arranged to avoid the slider and will not interfere with the slider. In addition, the rotating end of the swing arm 51 is arranged on one side of the stopper 10, so that the free end of the swing arm 51 can move relative to the outside of the placement substrate 31 when the swing arm 51 rotates, and after the swing arm 51 switches from the second position to the first position, the body of the swing arm 51 located between the rotating end and the free end can at least abut against the stopper 10 with the protruding arrangement, thereby limiting the swing arm 51 from continuing to rotate along its rotating end, playing a limit protection role and being able to avoid accidents caused by the swing arm 51 being rotated and opened and closed by external forces.

[0045] In one embodiment, preferably, the two swing arms 51 are configured to rotate in a horizontal opening and closing manner, and are synchronously driven by different driving mechanisms 6. Preferably, the driving mechanism 6 is a hydraulic motor, which is vertically configured on the slider, and the output end of the hydraulic motor is connected to the swing arm 51, so that the swing arm 51 can switch positions outward along the end face of the slider. When the swing arm 51 is in the first position, it is approximately at a 90° angle with the end face of the slider, and when the swing arm 51 is in the second position, it is approximately at a 0° angle with the end face of the slider 8 and can be accommodated in the slider 8 and is approximately flush with its end face. When it is at 90°, the swing arm 51 can vertically block the placement area, thereby limiting the workpiece C to be welded to the placement area and approaching to press the workpiece C to be welded or moving away to avoid the workpiece C to be welded under the drive of the slider 8. When it is at 0°, the swing arm 51 can be approximately flush with the slider, avoiding protruding from the end face position to hinder the lifting and entry of the workpiece C to be welded.

[0046] In one embodiment, in particular, a sensor (not shown) capable of detecting the position of the swing arm 51 is disposed on the slider. When the swing arm 51 switches to the first position and the second position, the sensor can sense whether the swing arm 51 is switched in place and feed back to the user terminal so that the next step can be performed.

[0047] In one embodiment, a pressing pad 52 is disposed on the bottom side of the swing arm 51 away from the output end, and the pressing pad 52 can be tightly pressed on the workpiece C to be welded. The pressing pad 52 is preferably made of elastic material such as rubber, which plays a dual role of pressing and protecting.

[0048] The above are only preferred implementations of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention.

Claims

1. A welding auxiliary equipment for engineering machinery, characterized in that: include: The crossbeam mechanism is arranged horizontally along its length in a first direction; A first rotating mechanism, which is arranged on both sides of the beam mechanism along the second direction and can drive the beam mechanism to rotate along the axis of the second direction; The second rotary mechanism is arranged on the beam mechanism, and comprises a rotating assembly and a driven assembly arranged at two ends of the beam mechanism opposite to each other along a first direction; the rotating assembly and the driven assembly are both slidably arranged on the beam mechanism, and a placement area for workpieces to be welded can be formed therebetween; the rotating assembly can drive the workpieces to be welded placed in the placement area to rotate along the axis of the first direction; A positioning mechanism is disposed at least on one of the rotating assembly and the driven assembly, and the positioning mechanism can limit the workpiece to be welded in multiple directions; The clamping mechanism is arranged on the same side as the positioning mechanism, and the clamping mechanism can slide along the third direction to limit and clamp the workpiece to be welded.

2. The welding auxiliary equipment according to claim 1, characterized in that: The crossbeam mechanism is substantially provided with mounting ears extending on both sides of the middle portion along its length, the first rotating mechanism is hingedly clamped on the two mounting ears, and can rotate the entire crossbeam mechanism driven by the main rotating end of the first rotating mechanism.

3. The welding auxiliary equipment according to claim 2, characterized in that: The driving sources of the rotating assembly and the main rotating end are both constructed in a manner where a reducer cooperates with a motor to drive the rotation.

4. The welding auxiliary equipment according to claim 1, characterized in that: The rotating assembly and the driven assembly are both constructed as L-shaped placement substrates, each of which can be rotatably arranged on both sides of the beam mechanism, and the two placement substrates on different sides are arranged opposite to each other to form an L-shaped placement area on each side for supporting the workpiece to be welded.

5. The welding auxiliary equipment according to claim 4, characterized in that: The placing substrate is slidably arranged on the beam mechanism through the base, and the placing substrate is hingedly arranged on the inner side of the base.

6. The welding auxiliary equipment according to claim 5, characterized in that: The positioning mechanism at least includes a centering clamping member arranged in the placement area and arranged along the horizontal transverse direction and at least one limiting abutment member arranged along the horizontal longitudinal direction. The limiting abutment member is used to limit the movement tendency of the workpiece to be welded along the side of the placement substrate. The centering clamping member includes a clamping block that can be relatively close or far away, which is used to clamp the workpiece in the horizontal transverse direction after the workpiece to be welded is placed.

7. The welding auxiliary equipment according to claim 6, characterized in that: The two clamping blocks can be synchronously slidably arranged on the placement area, and at least one axial positioning piece is arranged between the two clamping blocks, and the positioning piece can be nested and engaged with the workpiece along the axial direction.

8. The welding auxiliary equipment according to claim 5, characterized in that: The first rotary mechanism and the crossbeam mechanism, as well as the base and the placement substrate are connected in a rotary support manner.

9. The welding auxiliary equipment according to claim 4, characterized in that: The clamping mechanism is slidably arranged on one side of the placement substrate; the clamping mechanism comprises at least a pair of swing arms, and the swing arms are rotatably arranged above the placement area and are arranged opposite to the placement area.

10. The welding auxiliary equipment according to claim 9, characterized in that: The swing arm has a first position that blocks the top of the placement area and can be pressed against the workpiece, and a second position that avoids the placement area to allow the workpiece to be directly placed from the top to the placement area. Moreover, the two swing arms can be driven by a driving mechanism to synchronously switch between the first position and the second position.

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