CN215238786U

CN215238786U - Welding device

Info

Publication number: CN215238786U
Application number: CN202121463245.XU
Authority: CN
Inventors: 马寅; 韩晓辉; 马国龙; 毛镇东; 陈北平; 孙正夏; 陈寿永
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-21
Anticipated expiration: 2031-06-29

Abstract

The utility model relates to the field of welding technique, a welding device is provided. The welding device comprises a welding gun assembly and two welding auxiliary assemblies, wherein each welding auxiliary assembly comprises a laser detection part, a laser cleaning part and a first dust removal part, and the two welding auxiliary assemblies are arranged in front of the welding gun assembly and behind the welding gun assembly respectively along the advancing route of the welding gun assembly. The welding device is provided with welding auxiliary components at two sides of a welding gun component. Namely, the functions of automatic cleaning and detection before welding and automatic detection and cleaning after welding are integrated in the welding device. On one hand, the automatic construction of the welding device can eliminate the problems of high labor intensity, low operation efficiency, unstable product quality and the like in the traditional method; on the other hand, the pre-welding cleaning and the post-welding detection are simultaneously constructed along with welding, cleaned at any time, welded at any time and detected at any time, so that the welding device can collect welding information in real time and adjust welding parameters in time, and the risk of defect generation is reduced.

Description

Welding device

Technical Field

The utility model relates to the field of welding technique, especially, relate to welding set.

Background

The railway passenger car becomes a bright business card manufactured in China, the problems of safety, reliability and comfort in high speed and complex environments are solved, the strength and the precision of the car are continuously improved, and the railway passenger car is a great problem to be overcome urgently in the railway passenger car industry. The traditional arc welding process of the railway passenger car parts comprises the procedures of cleaning before welding, detecting before welding, detecting after welding, cleaning after welding and the like.

At present, manual polishing or a mode of combining manual polishing and chemical reagent scrubbing is mainly adopted for cleaning before welding, and a manual polishing mode is mainly adopted for cleaning after welding. The cleaning method has high labor intensity, low working efficiency and large environmental pollution, and can not thoroughly eliminate impurities which influence the welding quality. The welding is finished within a specified time after the cleaning before welding (for example, the aluminum alloy requires 4 hours), and once an abnormal condition occurs, the abnormal condition is extremely easy to exceed the specified finishing time to cause the pollution of the base metal, so that the welding defect is generated, and the qualification rate of the product is reduced.

At present, manual visual inspection is mainly adopted for pre-welding detection and post-welding detection, a welding operator or a special quality detector detects the sizes of welding seam joints such as assembly gaps, staggered edges and the like before welding so as to ensure that the subsequent welding requirements are met, and after welding is completed and parts are cooled, the appearance sizes of the welding seams are manually sampled and measured, and paper quality qualified data are filled. The method has the problems of low operation efficiency, influence of the skill level of personnel on the defect detection rate and the like.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve at least one of the technical problems existing in the related art. Therefore, the utility model provides a welding set, it is provided with welding auxiliary assembly respectively in the both sides of welder subassembly, has promoted the inside quality and the outward appearance shaping of railway vehicle carrier part welding seam, and has improved the degree of automation of welding, clearance and detection and the product percent of pass of corresponding welding product.

According to the utility model discloses welding set of first aspect embodiment includes:

a welding gun assembly;

the welding auxiliary assemblies comprise a laser detection component, a laser cleaning component and a first dust removal component, and the two welding auxiliary assemblies are arranged in front of the welding gun assembly and behind the welding gun assembly respectively along the advancing path of the welding gun assembly.

According to the utility model discloses welding set installs welding auxiliary assembly in the both sides of welder subassembly. That is, the welding apparatus integrates automatic cleaning (including cleaning and dust removal), detection before welding, and automatic detection and cleaning after welding. On one hand, the automatic construction of the welding device can eliminate the problems of high labor intensity, low operation efficiency, unstable product quality and the like in the traditional method; on the other hand, the pre-welding cleaning and the post-welding detection are simultaneously constructed along with welding, cleaned at any time, welded at any time and detected at any time, so that the welding device can collect welding information in real time and adjust welding parameters in time, and the risk of defect generation is reduced.

According to an embodiment of the present invention, the welding is assisted the laser detection part, the laser cleaning part and the first dust removal part are sequentially arranged toward a direction away from the welding gun assembly.

According to the utility model discloses an embodiment, first dust removal part is fixed in through the detachable mode laser washs the part, laser washs the part and is fixed in through the detachable mode welder subassembly.

According to an embodiment of the present invention, the first dust removing part is fixed to the laser cleaning part by a first mounting seat; the laser cleaning component is fixed on the welding gun assembly through a second mounting seat; first mount pad includes first mounting panel, second mounting panel and connecting plate, the connecting plate is located first mounting panel with between the second mounting panel, the second mount pad includes the extension arm and is fixed in the backup pad of extension arm free end.

According to an embodiment of the invention, at least one of the extension arm and the connection plate is provided with lightening holes.

According to the utility model discloses an embodiment, the air intake of first dust removal part is higher than the top of laser cleaning portion.

According to an embodiment of the present invention, along on the advancing line of the welding gun assembly, two the welding auxiliary assemblies are symmetrically disposed at both sides of the welding gun assembly.

According to an embodiment of the present invention, the laser cleaning part and the first dust removing part are inclined toward the welding gun assembly toward a direction away from the welding spot.

According to the utility model discloses an embodiment, welding set still includes:

and the second dust removal component is arranged corresponding to the welding gun component and is arranged behind the welding gun component along the advancing route of the welding gun component.

According to an embodiment of the present invention, the second dust removing part is located in a downwind region of the shielding gas and the soot of the welding gun assembly.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a welding device according to an embodiment of the present invention;

reference numerals:

1. a welding gun assembly; 2. a laser detection part; 3. laser cleaning the component; 4. a first dust removing part; 5. a second dust removing member; 6. an air inlet; 7. a first mounting seat; 701. a first mounting plate; 702. a second mounting plate; 703. a connecting plate; 8. a second mounting seat; 801. an extension arm; 802. a support plate; 9. and (7) lightening holes.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The embodiment of the utility model provides an only explain welding set with railway vehicle's welding as the example, do not lose the commonality, the utility model discloses welding set under can also be used to other any scenes.

Referring to fig. 1, a welding device according to an embodiment of the present invention includes a welding gun assembly 1 and two welding auxiliary assemblies. The welding auxiliary components comprise a laser detection component 2, a laser cleaning component 3 and a first dust removal component 4, and the two welding auxiliary components are arranged in front of the welding gun component 1 and behind the welding gun component 1 respectively along the advancing path of the welding gun component 1.

According to the utility model discloses welding set installs welding auxiliary assembly in welder subassembly 1's both sides. That is, the welding apparatus integrates automatic cleaning (including cleaning and dust removal), detection before welding, and automatic detection and cleaning after welding. On one hand, the automatic construction of the welding device can eliminate the problems of high labor intensity, low operation efficiency, unstable product quality and the like in the traditional method; on the other hand, the pre-welding cleaning and the post-welding detection are simultaneously constructed along with welding, cleaned at any time, welded at any time and detected at any time, so that the welding device can collect welding information in real time and adjust welding parameters in time, and the risk of defect generation is reduced.

The utility model discloses welding set, it can also set up the information acquisition unit, and then accumulates, saves welding seam quality data in real time through the information acquisition unit.

According to the utility model discloses welding set, welding auxiliary assembly's laser detection part 2, laser cleaning part 3 and first dust removal part 4 set gradually towards the direction of keeping away from welder subassembly 1.

For the laser cleaning component 3, by utilizing the characteristics of high brightness, high heat and the like of laser, acting force between pollutants such as oil stain, water and the like on the surface of materials such as stainless steel, aluminum alloy and the like and parent metal can be quickly destroyed before welding, so that the pollutants are separated from the component, and impurities influencing welding quality are reduced; and the laser cleaning component 3 can quickly remove impurities such as flux coatings, welding slag and the like on the surface of the welding line after welding, and quickly reaches a commercialized delivery state.

The effective coupling of laser cleaning and welding is realized through tests, oil stains and oxidation films on the surface of the aluminum alloy can be effectively removed and the high-speed welding of 3 m/mim-4 m/mim of laser arc hybrid welding can be matched simultaneously under the parameter setting conditions of 0.048mm (millimeter) of spot diameter, 0.03mm of transverse line spacing and 60W (watt) of average power, and the aluminum alloy substrate on the surface of the cleaned plate is flat.

For the laser detection part 2, the contour or position of an object is obtained by scanning a structure to be welded through line laser or surface structure light, so that the information of a welding joint, such as an assembly gap, a misalignment, a groove angle, a groove depth and the like, can be acquired and fed back in real time before welding, and a welding process specification database recorded in advance by a system is matched in real time to realize automatic calling and setting of process parameters. Or, when the detected information exceeds the required range, early warning is carried out, and meanwhile, the automatic locating of the starting point of the welding program can be realized according to the position of the welding seam. In addition, in the welding process, according to the laser real-time detection result of the welding joint, the position of a welding gun can be adjusted according to a specific algorithm (such as the detection of the lowest point of the welding joint and the central point of the welding joint) to guide a welding advancing path, meanwhile, the real-time information of the assembly gap, the misalignment, the groove angle, the groove depth and the like of the welding joint is compared with the design requirement, and the welding process parameters are adjusted in real time. And moreover, through laser scanning of the surface of the welded seam after welding, the detection of dimensional information such as width, residual height and straightness of the finished welded seam and defects such as air holes and undercut on the surface of the welded seam can be realized, a feedback system performs automatic comparison with EN5817 welding seam qualification standards, and a welding seam quality judgment conclusion is obtained in real time. By the laser detection and information processing means, the automatic adjustment and setting of welding process parameters can be realized, the welding device can be timely found and fed back to execute the shutdown or parameter adjustment function before and after welding, and meanwhile, the automatic acquisition, analysis and storage of information can be realized.

For the first dust removing component 4, the first dust removing component 4 is added, so that the site can be better cleaned, and the welding effect is improved.

Referring to fig. 1, the laser cleaning part 3 and the first dust removing part 4 are inclined toward the torch assembly 1 in a direction away from the welding point (up-down direction in fig. 1). That is, for the welding assistance component disposed ahead of the welding torch assembly 1 along the advancing route of the welding torch assembly 1: the laser cleaning component 3 and the advancing direction of the welding assembly form an obtuse angle, and the first dust removal component 4 is arranged right in front of the laser cleaning component 3. For the welding assistance assembly disposed behind the welding torch assembly 1 along the advancing path of the welding torch assembly 1: the laser cleaning component 3 after welding forms an acute angle with the welding advancing direction, and the first dust removing component 4 is arranged right behind the laser cleaning component 3.

According to the utility model discloses welding set, the air intake 6 of first dust removal part 4 is located the top at 3 tops of laser cleaning part, and then can guarantee that the air current gets into through air intake 6, and later treat through the head of first dust removal part 4 and weld the structure and remove dust.

According to the utility model discloses welding set, first dust removal part 4 is fixed in laser cleaning part 3 through the detachable mode, and laser cleaning part 3 is fixed in welder subassembly 1 through the detachable mode. Furthermore, in some cases, when dust removal is not necessary, the first dust removing member 4 may be detached from the laser cleaning member 3 to save power of the welding apparatus.

Referring to fig. 1, the first dust removing member 4 is fixed to the laser cleaning member 3 by a first mounting base 7, the first mounting base 7 includes a first mounting plate 701, a second mounting plate 702, and a connecting plate 703, and the connecting plate 703 is located between the first mounting plate 701 and the second mounting plate 702. This kind of first mount pad 7's simple structure makes things convenient for processing to between first mounting panel 701 and the first dust removal part 4, and between second mounting panel 702 and the laser cleaning part 3, all can be through the bolt fastening, and then the dismouting of first dust removal part 4 is reliable and quick.

The laser cleaning member 3 is fixed to the torch assembly 1 by a second mount 8. The second mounting base 8 includes an extension arm 801 and a support plate 802 fixed to a free end of the extension arm 801. Through the arrangement of the second mounting seat 8, no interference occurs between the welding auxiliary assembly and the welding gun assembly 1.

According to an embodiment of the present invention, at least one of the connection plate 703 and the extension arm 801 is provided with lightening holes 9. That is, the connection plate 703 and the extension arm 801 may both be provided with lightening holes 9; alternatively, one of the attachment plate 703 and the extension arm 801 is provided with a lightening hole 9. Furthermore, the weight of the welding device can be reduced through the arrangement of the lightening holes 9, and the power required by the welding device can be saved.

According to the utility model discloses an on the route of advance of welder subassembly 1, two welding auxiliary assembly symmetries set up in welder subassembly 1's both sides.

According to the utility model discloses an embodiment, welding set still includes second dust removal part 5, and second dust removal part 5 corresponds welder subassembly 1 setting, and sets up in welder subassembly 1's rear along welder subassembly 1's the way of advance. Wherein the second dust removing part 5 is positioned in the downwind area of the protective gas and the smoke of the welding gun assembly 1.

In fig. 1, the welding gun in the welding gun assembly 1 forms an acute angle with the welding advancing direction, and the second dust removal component 5 is installed behind the welding gun, so that the air inlet 6 of the second dust removal component 5 is located in the downwind area of the shielding gas and the smoke dust, the power of the second dust removal component 5 is reduced, the dust removal effect is achieved by blowing the smoke dust through the shielding gas, and meanwhile, the disturbance of the shielding gas on the protection effect of the welding area is avoided.

According to the utility model discloses an embodiment, laser cleaning component 3, laser detection part 2, the part that removes dust (first part 4 and the second part 5 that removes dust) and welder subassembly 1 all adopt among the prior art disclosed structural style can. For example, the laser cleaning component 3 may be any machine known in the art that can perform laser cleaning. Likewise, the laser detection component 2 can adopt any machine which can realize laser detection and is disclosed in the prior art; the first dust removing component 4 and the second dust removing component 5 can adopt any machine which can be used for realizing dust removing effect and is disclosed in the prior art; the welding gun assembly 1 may be any machine known in the art that can be used to effect welding.

According to the utility model discloses an embodiment, laser cleaning part 3, laser detection part 2, dust removal part (first dust removal part 4 and second dust removal part 5) and welder subassembly 1 all integrate in welding set, and the settlement of the parameter of all above parts, the assignment of order all can be operated through visual computer interface. Laser cleaning, laser detection, dust removal and welding are carried out synchronously, working procedure circulation is reduced, production efficiency is improved, assembly problems and weld defects are exposed in real time, and product percent of pass is improved. The welding device can be applied to various welding methods such as laser welding, laser composite welding, automatic arc welding and the like.

The above embodiments are merely illustrative, and not restrictive, of the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of the technical solutions should be covered by the scope of the claims of the present invention.

Claims

1. A welding device, comprising:

a welding gun assembly;

2. The welding device according to claim 1, wherein the laser detection part, the laser cleaning part, and the first dust removal part of the welding assistance are provided in this order toward a direction away from the welding gun assembly.

3. The welding device of claim 2, wherein the first dust extraction member is removably secured to the laser cleaning member, and wherein the laser cleaning member is removably secured to the torch assembly.

4. The welding device according to claim 3, wherein the first dust removing member is fixed to the laser cleaning member by a first mounting seat; the laser cleaning component is fixed on the welding gun assembly through a second mounting seat; first mount pad includes first mounting panel, second mounting panel and connecting plate, the connecting plate is located first mounting panel with between the second mounting panel, the second mount pad includes the extension arm and is fixed in the backup pad of extension arm free end.

5. The welding device of claim 4, wherein at least one of the web and the extension arm is provided with a weight-reducing hole.

6. The welding device according to claim 1, wherein the air inlet of the first dust removing part is higher than the top of the laser cleaning part.

7. The welding device according to any one of claims 1 to 6, wherein the two welding assistance assemblies are symmetrically disposed on both sides of the welding gun assembly along the advancing path of the welding gun assembly.

8. The welding device of claim 7, wherein the laser cleaning component and the first dust extraction component are each angled toward the torch assembly in a direction away from the weld spot.

9. The welding device according to any one of claims 1 to 6, further comprising:

10. The welding device of claim 9, wherein the second dust extraction feature is located in a downwind region of shielding gas and fumes from the torch assembly.