CN220825580U

CN220825580U - Full penetration welding equipment

Info

Publication number: CN220825580U
Application number: CN202322665600.7U
Authority: CN
Inventors: 陈双庆; 万华; 王志伟
Original assignee: Shenzhen Hero Laser Equipment Co ltd
Current assignee: Shenzhen Hero Laser Equipment Co ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-04-23
Anticipated expiration: 2033-09-28

Abstract

The utility model provides full penetration welding equipment which comprises a motion control system, a welding assembly and a welding flexible platform, wherein the motion control system comprises a ground rail and a multi-axis manipulator, and the multi-axis manipulator is slidably arranged on the ground rail; the welding assembly comprises a mounting part, a laser welding piece and an arc welding piece which are respectively mounted on the mounting part, and the mounting part is connected with the tail end of the multi-axis manipulator; the welding flexible platform is arranged at intervals with the ground rail and is used for placing a workpiece. The full penetration welding equipment adopts laser-electric arc composite welding, utilizes laser and electric arc as dual heat sources, simultaneously acts on the same molten pool to form laser guidance and stabilize electric arc, improves the absorptivity of metal to laser by the electric arc, can weld and shape workpieces by one cycle, does not need to reserve a gap for grooving, reduces the processing steps of materials, and simplifies the welding flow; the welding efficiency is improved, and the welding surface is formed well.

Description

Full penetration welding equipment

Technical Field

The utility model relates to the technical field of welding equipment, in particular to full penetration welding equipment.

Background

For the combined welding of the U-rib steel and the top plate, the welding method comprises submerged arc welding and CO ₂ gas shielded welding, and the weld penetration rule needs to reach 75% -80%. But the defect that the inner root is not fused is inherent.

The double-sided welding of the inner welding and the outer welding has good stress performance compared with the single-sided welding seam; the double-sided gas shielded welding penetration rate reaches 80%, but the back chipping cannot be realized in the process, the welding defect still exists, the technical methods of reserving gaps of gaskets, chamfering and the like are required to be added aiming at thick U-rib steel, the double-sided submerged arc has slow efficiency although the full penetration can be realized, and the welding needs to be cleaned after welding. The welding mode can often cause various defects such as incomplete penetration, incomplete fusion, weld flash, unsatisfactory penetration depth and the like in the U-rib steel, so that the U-rib steel is easy to have opening defects, and the fatigue strength of a welding line is seriously affected. In engineering application, how to avoid the weld defects of the U-ribs and improve the welding quality of the weld is a technical problem which needs to be solved by the skilled in the art.

In view of this, it is necessary to provide a new full penetration welding apparatus that solves or at least alleviates the above-mentioned technical drawbacks.

Disclosure of utility model

The utility model mainly aims to provide full penetration welding equipment, and aims to solve the technical problems that U-rib steel in the prior art is low in efficiency and easy to cause welding defects.

To achieve the above object, the present utility model provides a full penetration welding apparatus comprising:

The motion control system comprises a ground rail and a multi-axis manipulator, wherein the multi-axis manipulator is slidably arranged on the ground rail;

The welding assembly comprises a mounting part, a laser welding piece and an arc welding piece which are respectively mounted on the mounting part, and the mounting part is connected with the tail end of the multi-axis manipulator;

The welding flexible platform is arranged at intervals with the ground rail and is used for placing workpieces.

In one embodiment, the laser welding member and the arc welding member are installed at the installation portion at intervals, and the laser welding member and the arc welding member are gradually close to each other in a direction away from the installation portion.

In an embodiment, the welding assembly further comprises a weld tracker mounted to the mounting portion.

In an embodiment, the multi-axis robot is a six-axis robot.

In an embodiment, the motion control system further comprises a base, a translation driving member and a gear, wherein the base is in sliding connection with the ground rail, the translation driving member and the multi-axis manipulator are both installed on the base, the ground rail is provided with a rack, the translation driving member is in transmission connection with the gear, and the gear is meshed with the rack.

In an embodiment, two groups of sliding blocks are oppositely arranged at the bottom of the base, the ground rail comprises two sliding rails, and the two groups of sliding blocks are in one-to-one corresponding sliding connection with the two sliding rails.

In an embodiment, the full penetration welding apparatus further comprises a control cabinet in communication with the motion control system.

In one embodiment, the welding assembly further comprises a laser coupled to the laser weldment, and the control cabinet is communicatively coupled to the laser.

In an embodiment, the full penetration welding apparatus further comprises a refrigerated water tank for cooling the laser interior and the laser weldment.

In an embodiment, the welding assembly further comprises a gas shield welding machine, the gas shield welding machine is connected with the arc welding piece, and the control cabinet is in communication connection with the gas shield welding machine.

In the scheme, after the workpiece is mounted at the preset position and clamped, the workpiece can be positioned at the preset position on the welding flexible platform by using the aerial crane, then the motion control system and the welding assembly are started, the multi-axis manipulator moves to the welding starting position from the ground rail, and the multi-axis manipulator drives the mounting part, the laser welding part, the arc welding part and the like to move to the position of the workpiece to be welded; and then the multi-axis manipulator is driven to move along the length direction of the ground rail, and simultaneously moves along the length direction of the welding flexible platform, the laser welding part and the electric arc welding part simultaneously weld the welding seam position of the workpiece, and the two parts interact to realize deep-melting welding. After one side of the workpiece is welded, the multi-axis manipulator moves to change the position of the welding assembly in space, and the other side of the workpiece is welded, so that the workpiece can be welded in a whole circle, and after the welding is finished, the workpiece is manually fed, and the next product is welded. The utility model adopts laser-arc composite welding, utilizes laser and electric arc as dual heat sources, simultaneously acts on the same molten pool to form laser guidance and stabilize the electric arc, improves the absorptivity of metal to the laser by the electric arc, enhances the bridging capability of molten drop transition by the interaction and energy coupling between the laser and the electric arc, fully exerts the advantages of the laser welding and the electric arc welding, and overcomes the respective defects. In particular, the composite welding technology has great advantages in the aspect of welding materials with medium and large thickness. The utility model can weld and shape the workpiece by one cycle without reserving a gap for chamfering, thereby reducing the processing steps of the incoming materials and saving the use of welding wire consumable materials; the composite welding can realize single-sided welding and double-sided molding, inner side welding is not needed, and the welding process is simplified; the welding efficiency is improved by 3-10 times, the welding surface is well formed, and the deformation is small.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings may be obtained from the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a full penetration welding apparatus according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of a connection structure between a multi-axis manipulator and a welding assembly in a full penetration welding apparatus according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of incidence angles of a laser welding member and an arc welding member in a full penetration welding apparatus for welding a workpiece according to an embodiment of the present utility model;

fig. 4 is a schematic diagram of a connection structure between a multi-axis manipulator and a ground rail in the full penetration welding apparatus according to the embodiment of the present utility model.

Description of the reference numerals:

The achievement of the object, functional features and advantages of the present utility model will be further described with reference to the drawings in connection with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

It should be noted that all the directional indicators in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between the components in a particular posture, and if the particular posture is changed, the directional indicators are changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

Moreover, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the embodiments, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist, and is not within the scope of protection claimed by the present utility model.

Referring to fig. 1 to 3, the present utility model provides a full penetration welding apparatus, which includes a motion control system, a welding assembly and a welding flexible platform 3; the motion control system comprises a ground rail 11 and a multi-axis manipulator 12, wherein the multi-axis manipulator 12 is slidably arranged on the ground rail 11; the welding assembly comprises a mounting part 21, and a laser welding piece 22 and an arc welding piece 23 which are respectively mounted on the mounting part 21, wherein the mounting part 21 is connected with the tail end of the multi-axis manipulator 12; the welding flexible platform 3 is arranged at intervals with the ground rail 11, and the welding flexible platform 3 is used for placing the workpiece 110.

In the above embodiment, after the workpiece 110 is mounted at the predetermined position and clamped, the workpiece may be positioned at the predetermined position on the welding flexible platform 3 by using the crane, and then the motion control system and the welding assembly are started, the multi-axis manipulator 12 is moved from the ground rail 11 to the welding start position, and the multi-axis manipulator 12 drives the mounting portion 21, the laser welding member 22, the arc welding member 23, and the like to move to the position of the workpiece 110 to be welded; and then the multi-axis manipulator 12 is driven to move along the length direction of the ground rail 11, and simultaneously moves along the length direction of the welding flexible platform 3, and the laser welding piece 22 and the arc welding piece 23 simultaneously weld the welding seam position of the workpiece 110, so that deep-melting welding is realized through interaction of the laser welding piece 22 and the arc welding piece 23. After one side of the workpiece 110 is welded, the multi-axis manipulator 12 moves to change the position of the welding assembly in space, and the other side of the workpiece 110 is welded, so that the workpiece 110 can be welded in a whole circle, and after the welding is finished, the workpiece is manually fed, and the next product is welded. The embodiment adopts laser-arc hybrid welding, utilizes laser and electric arc as dual heat sources, simultaneously acts on the same molten pool to form laser guidance and stabilize the electric arc, improves the absorptivity of metal to the laser by the electric arc, enhances the droplet transfer bridging capability by the interaction and energy coupling between the laser and the electric arc, fully exerts the advantages of the laser welding and the electric arc, and overcomes the respective defects. In particular, the composite welding technology has great advantages in the aspect of welding materials with medium and large thickness. The workpiece 110 can be welded and formed by one-time circulation without reserving a gap for chamfering, so that the processing steps of incoming materials are reduced, and the consumption of welding wire materials is saved; the composite welding can realize single-sided welding and double-sided molding, inner side welding is not needed, and the welding process is simplified; the welding efficiency is improved by 3-10 times, the welding surface is well formed, and the deformation is small.

Wherein, as shown in fig. 3, the workpiece 110 may be a combination of the U-rib steel 120 and the top plate 130, or may have other similar structures.

Referring to fig. 2 and 3, in an embodiment, a laser welding member 22 is installed at a mounting portion 21 spaced apart from an arc welding member 23, and the laser welding member 22 is gradually moved closer to the arc welding member 23 in a direction away from the mounting portion 21. The laser weldment 22 and the arc weldment 23 are disposed at an angle to each other with a small distance between them at a position near the weld of the workpiece 110 so as to act on the same weld pool at the same time. The laser-arc composite welding process is different from the traditional welding gas-shielded welding and submerged arc welding modes, and is more efficient and rapid. The height of the outside welding angle of the U-ribbed steel 120 is consistent with that of the conventional arc welding, the size of the welding angle height can be controlled on the inside according to the parameter speed, the included angle between the incident angle of the laser welding piece 22 and the top plate 130 can be 20 degrees, the angle between the incident angle of the arc welding piece 23 and the top plate 130 can be 45 degrees, and the angle difference exists between the incident angle and the top plate 130, so that the welding full penetration effect plays a key role.

Referring to FIG. 2, in one embodiment, the welding assembly further includes a bead tracker 24, the bead tracker 24 being mounted to the mounting portion 21. The whole welding line of the workpiece 110 is linear, the welding line tracker 24 is started, the data communication is compensated for the multi-axis manipulator 12 according to the deviation of the position of the identified welding line, the correction of the coordinate position is realized, the welding line is aligned, and the welding accuracy is higher. Specifically, a bead tracker 24 is fixed to the mounting portion 21 toward a position where the laser welding 22 and the arc welding 23 approach each other.

The output end of the multi-axis manipulator 12 moves by driving the mounting part 21, so as to drive the laser welding part 22, the arc welding part 23 and the weld tracker 24 mounted on the mounting plate to move in space, and the multi-axis manipulator 12 can drive the welding assembly to integrally move or change the angle in space according to a preset track, so that the workpiece 110 can be welded. In an embodiment, the multi-axis manipulator 12 may be a six-axis manipulator, in which six rotating shafts and six servo motors are built in, and the six joint shafts are driven to rotate by a speed reducer, a synchronous pulley, and the like, so that the multi-axis manipulator has the advantages of high flexibility, high load, high positioning precision, and the like. The specific structure of the six-axis manipulator can refer to the prior art.

Referring to fig. 4, in an embodiment, the motion control system further includes a base 13, a translation driving member and a gear, the base 13 is slidably connected with the ground rail 11, the translation driving member and the multi-axis manipulator 12 are both mounted on the base 13, the ground rail 11 is provided with a rack 111, the translation driving member is in transmission connection with the gear, and the gear is meshed with the rack 111. The translation driving piece is used for driving a gear to rotate, the length direction of the rack 111 is consistent with the length direction of the ground rail 11, the gear rotates and is meshed with the rack 111, so that the base 13 is driven to slide on the ground rail 11, and the base 13 drives the multi-axis manipulator 12 to move. The embodiment has the advantages of high control precision and convenient operation.

Referring to fig. 4, in an embodiment, in order to make the sliding of the base 13 relative to the ground rail 11 smoother, two sets of sliding blocks 131 are disposed at the bottom of the base 13, the ground rail 11 includes two sliding rails 112, and the two sets of sliding blocks 131 are slidably connected with the two sliding rails 112 in a one-to-one correspondence manner, so that the movement stability of the multi-axis manipulator 12 and the welding assembly is better.

Referring to fig. 1, in one embodiment, the full penetration welding apparatus further includes a control cabinet 4, the control cabinet 4 being in communication with the motion control system. The communication connection may in particular be an electrical connection or a wireless connection. The control cabinet 4 provides a power supply for the equipment, and can set a preset program to drive the multi-axis manipulator 12 to move and drive the translation driving piece to rotate forwards or reversely.

Referring to fig. 1, in one embodiment, the welding assembly further includes a laser 25, the laser 25 being coupled to the laser weldment 22 and the control cabinet 4 being communicatively coupled to the laser 25. The control cabinet 4 can also control the light emitting mode, the power level, curve adjustment and the like of the laser welding piece 22.

Referring to fig. 1, in one embodiment, the full penetration welding apparatus further includes a cooling water tank 5, the cooling water tank 5 being used to cool the interior of the laser 25 and the laser weldment 22. Avoiding high temperatures from affecting the laser 25 and the laser weldment 22. The service life is prolonged.

Referring to FIG. 1, in one embodiment, the welding assembly further includes a gas shield welder 26, the gas shield welder 26 being connected to the arc weldment 23, and the control cabinet 4 being communicatively connected to the gas shield welder 26. The gas-shielded welding machine 26 may specifically be a carbon dioxide gas-shielded welding machine 26, the carbon dioxide gas-shielded welding machine 26 provides heat source welding wire cladding, and a larger welding penetration can be obtained by utilizing the characteristic of higher laser power density, and a better cosmetic appearance effect can be obtained by carbon dioxide gas-shielded welding.

Specifically, the process parameters of each component in the embodiment of the present utility model may be: laser 12000W, welding speed 20mm/s, arc welding current 320A, arc welding voltage 33V, wire spacing of 2mm between the laser welding member 22 and the arc welding member 23, thickness of U-ribbed steel 120 of 12mm, and thickness of top plate 130 of 24mm.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims

1. A full penetration welding apparatus, comprising:

2. The full penetration welding apparatus of claim 1, wherein the laser weldment is mounted at the mounting portion in spaced relation to the arc weldment, the laser weldment being progressively closer to the arc weldment in a direction away from the mounting portion.

3. The full penetration welding apparatus of claim 2, wherein the welding assembly further comprises a weld tracker mounted to the mounting portion.

4. The full penetration welding apparatus of claim 1, wherein the multi-axis robot is a six-axis robot.

5. The full penetration welding apparatus of claim 1, wherein the motion control system further comprises a base, a translational drive, and a gear, the base being slidably coupled to the ground rail, the translational drive and the multi-axis manipulator each being mounted to the base, the ground rail being provided with a rack, the translational drive being in driving connection with the gear, the gear being in meshing engagement with the rack.

6. The full penetration welding apparatus of claim 5, wherein two sets of sliding blocks are oppositely arranged at the bottom of the base, the ground rail comprises two sliding rails, and the two sets of sliding blocks are in one-to-one corresponding sliding connection with the two sliding rails.

7. The full penetration welding apparatus of any one of claims 1 to 6, further comprising a control cabinet in communication with the motion control system.

8. The full penetration welding apparatus of claim 7, wherein the welding assembly further comprises a laser coupled to the laser weldment, and wherein the control cabinet is communicatively coupled to the laser.

9. The full penetration welding apparatus of claim 8, further comprising a refrigerated water tank for cooling the laser interior and the laser weldment.

10. The full penetration welding apparatus of claim 7, wherein the welding assembly further comprises a gas shield welder coupled to the arc weldment, the control cabinet being communicatively coupled to the gas shield welder.