CN109226990B - Process method for welding embedded part by using welding robot - Google Patents
Process method for welding embedded part by using welding robot Download PDFInfo
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- CN109226990B CN109226990B CN201811239338.7A CN201811239338A CN109226990B CN 109226990 B CN109226990 B CN 109226990B CN 201811239338 A CN201811239338 A CN 201811239338A CN 109226990 B CN109226990 B CN 109226990B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a process method for welding an embedded part by using a welding robot, which comprises the following steps: will open the hole the steel sheet is kept flat on the horizontal plane, gets a length dimension and does not exceed the internal diameter and the thickness in hole are 2 mm's reference, will the reference is installed the needs welded tip of reinforcing bar will the tip of reinforcing bar is inserted downthehole, until the reference with the surface of steel sheet flushes, adjusts the reinforcing bar is vertical and carry out spot welding, will spot welding accomplish the reinforcing bar with the combination of steel sheet is placed on welding robot's the bed-jig, lift off the reference, welding robot welds. The invention can improve the production quality and the production efficiency of the embedded part.
Description
Technical Field
The invention relates to the technical field of building steel structures, in particular to a process method for welding embedded parts by using a welding robot.
Background
In the construction of steel structures, the embedded part is a widely used component type, and referring to fig. 1, the structure is generally composed of two parts, i.e., a steel plate 100 and a steel bar 200, and the steel bar 200 plays an anchoring role in concrete. Although the steel structure embedded part belongs to a secondary member, the steel structure embedded part also has the characteristics of the steel structure embedded part:
1. the embedded parts are non-standard products, so that the steel structure embedded parts are very large in general specification and large in batch manufacturing difficulty in order to adapt to different node requirements;
2. the number of embedded parts is large, the number of embedded parts of a single project is large, and the manufacturing is time-consuming;
3. the embedded part belongs to a connecting node, the performance requirement must be met in the manufacturing process, generally, the through hole plug welding is required, and the manufacturing quality requirement is high;
4. the construction period of the embedded part is short, and the embedded part is constructed before the main body structure, so that the influence on the installation progress of the project is large, and the processing period of the embedded part is generally short;
5. the processing efficiency of the embedded part is low, the embedded part in the existing steel structure industry is limited by equipment and technology, and the main procedures of manufacturing the embedded part are generally assembled and welded in a manual operation mode, so that the efficiency is low.
In summary, for the field of building steel structures, it is always desirable to improve the production quality and efficiency of embedded parts, and the existing processing method cannot be realized all the time.
Specifically, the existing machining method of the embedded part generally comprises the following steps: drilling a hole in the steel plate 100, machining a counter bore in the steel plate 100, wherein the bore diameter is slightly larger than the diameter of the steel bar 200, and machining a tapered hole with half plate thickness depth on the basis of the counter bore by using a large drill so as to facilitate subsequent welding; assembling the steel bars 200, namely placing the steel plate 100 on a horizontal plane, manually plugging the steel bars 200 into the counter bores, roughly performing spot welding and fixing after fine adjustment, checking the verticality after spot welding, and hammering the steel bars 200 by using an iron hammer if the verticality is not enough; and after the assembly, welding the embedded part plug welding holes singly in a manual welding mode. However, the following disadvantages are generally encountered with this method of processing:
1. the assembly quality is low, according to the requirement of an anchor bolt sample, the distance between the end part of the steel bar and the surface of the steel plate is 2mm to ensure the welding quality, the installation size cannot be ensured by manual assembly fine adjustment, the influence on the welding quality is large, the verticality cannot be ensured by steel bar installation, and the adjustment is difficult;
2. the assembly efficiency is low, the steel bar cannot be installed qualified once in the assembly process, the installation size of the steel bar needs to be adjusted manually for multiple times, the installation verticality is adjusted, and the assembly requirement is high;
3. the welding strength is high, manual welding is needed after the installation is finished, and the welding efficiency is low;
4. after manual welding, the welding seam needs to be ground flat, so that the grinding workload is increased, and the machining efficiency is influenced;
5. the method has the advantages of no batch production, low production efficiency and no requirement on the construction period.
In view of the above, it is desirable to provide a processing method capable of improving the production quality and efficiency of the embedded part.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a process method for welding an embedded part by using a welding robot, which is used for solving the problems of low production quality and low production efficiency of the embedded part in the prior art.
To this end, according to an embodiment of the invention, the process comprises:
horizontally placing the steel plate with the opened holes on a horizontal plane;
taking a reference piece with the length dimension not exceeding the inner diameter of the hole and the thickness of 2 mm;
mounting the reference piece at the end part of the reinforcing steel bar to be welded;
inserting an end of the rebar into the hole until the reference is flush with the surface of the steel plate;
adjusting the steel bars to be vertical and performing spot welding;
and placing the combination of the steel bars and the steel plates which are subjected to spot welding on a jig frame of the welding robot, detaching the reference piece, and welding by the welding robot.
The method according to the above process may further comprise the following additional technical features.
As a further alternative of the process method, the reference piece is internally provided with a magnetic piece to facilitate the assembly and disassembly of the reference piece.
As a further alternative to the process, the reference element is formed by the magnetic element.
As a further alternative of the process, the reference member is a cylinder member having a cylindrical cavity, the size of the cylindrical cavity of the cylinder member matches the external size of the reinforcing steel bar, and the bottom thickness of the cylinder member is 2 mm.
As a further alternative of the process method, the surface of the reference piece is provided with a first sensor, the surface of the steel plate is provided with a second sensor, and when the reference piece is flush with the surface of the steel plate, the first sensor is in butt joint with the second sensor and sends a reminding signal.
As a further alternative to the process, the first sensor is selected from one of a photosensor or an infrared sensor; the second sensor selects one of a photoelectric sensor or an infrared sensor.
As a further alternative of the process method, a baffle is arranged on the surface of the steel plate, an opening is formed in the baffle, and the first sensor is in butt joint with the second sensor through the opening.
As a further alternative of the process, the welding robot performs welding with the following parameters: welding wires: CHW-50C6, diameter 1.2 mm; gas: 80% of AR +20% of CO2, and the purity of the mixed gas is more than or equal to 99.5%.
As a further alternative of the process, the welding robot performs welding with the following parameters: the bottoming current is 260A, the voltage is 31V, the welding speed is 55cm/min, the swing frequency is 120 times/min, the swing width is 3mm, and the inclination angle of a welding gun is 90 degrees.
As a further alternative of the process, the welding robot performs welding with the following parameters: the capping current is 310A, the voltage is 30V, the welding speed is 21cm/min, the swing frequency is 60 times/min, the swing width is 7mm, and the inclination angle of a welding gun is 90 degrees.
The invention has the beneficial effects that:
according to the process method in the embodiment, due to the arrangement of the reference part, when the distance between the end part of the steel bar and the surface of the steel plate is judged, the reference part can be used as the reference object, and the thickness of the reference part is just 2mm, so that when the reference part is installed on the end part of the steel bar, the surface of the reference part is only required to be flush with the surface of the steel plate, and compared with the prior art without the reference object, the precision can be obviously improved by a direct observation mode, and finally the quality of the embedded part is improved. Meanwhile, the welding robot is adopted for welding, so that the machining efficiency of the embedded part can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 shows a schematic structural view of an embedment;
FIG. 2 is a flow chart illustrating a process method for welding an embedded part by using a welding robot according to an embodiment of the invention;
fig. 3 is an assembly diagram of a reference part and a reinforcing steel bar in a process of welding an embedded part by using a welding robot according to an embodiment of the invention.
Description of the main element symbols:
100-steel plate; 200-reinforcing steel bars; 300-reference.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. 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.
Examples
The present embodiment provides a process for welding an embedment using a welding robot, by which a reinforcing bar 200 is welded to a steel plate 100 to form an embedment.
Referring to fig. 2-3, the process method includes the following steps:
s100, horizontally placing the steel plate 100 with the opened holes on a horizontal plane;
s200, taking a reference piece 300 with the length size not exceeding the inner diameter of the hole and the thickness of 2 mm;
s300, mounting the reference piece 300 at the end part of the steel bar 200 to be welded;
s400, inserting the end of the steel bar 200 into the hole until the reference piece 300 is flush with the surface of the steel plate 100;
s500, adjusting the steel bar 200 to be vertical and performing spot welding;
s600, placing the combination of the steel bar 200 and the steel plate 100 which are subjected to spot welding on a jig of the welding robot, detaching the reference piece 300, and welding by the welding robot.
In this way, due to the arrangement of the reference part 300, when the distance between the end of the steel bar 200 and the surface of the steel plate 100 is judged, the reference part 300 can be used as a reference object, and the thickness of the reference part 300 is just 2mm, so when the reference part 300 is installed on the end of the steel bar 200, the surface of the reference part 300 is only required to be flush with the surface of the steel plate 100, and compared with the non-reference object in the prior art, the method of direct observation can obviously improve the precision, and finally improve the quality of the embedded part. Meanwhile, the welding robot is adopted for welding, so that the machining efficiency of the embedded part can be improved.
In one embodiment, the reference member 300 has a magnetic member built therein to facilitate the attachment of the reference member 300 to the end of the reinforcing bar 200 or the detachment of the reference member 300 from the end of the reinforcing bar 200.
At this time, it can be understood that due to the existence of the magnetic member, when the reference member 300 is installed, only the reference member 300 needs to be close to the end of the steel bar 200, so that not only can installation of workers be facilitated, but also unnecessary damage to the steel bar 200 can be effectively prevented.
Similarly, when the reference member 300 needs to be removed, it can be removed only by manual force.
It should be noted that, in general, the reference member 300 may be designed in a disc shape to be well connected to the end of the reinforcing bar 200, but the reference member 300 is not limited to the above-described structure, and may be designed to have a thickness of 2mm so as not to be too large to enter the hole of the steel plate 100.
On the other hand, the number of the magnetic members and the arrangement inside the reference member 300 may be various, for example, when the magnetic members are a whole, the magnetic members only need to be arranged at the center of the reference member 300, and when the magnetic members are a plurality of magnetic members, the magnetic members may be uniformly distributed inside the reference member 300, or may be uniformly distributed on the periphery of the reference member 300.
In some embodiments, referring to fig. 3, the reference member 300 may also be entirely formed of a magnetic member, and in this case, the reference member 300 may be understood as a magnet.
It is understood that the magnetic member is made of a magnetic material, and the magnetic material can be selected from various materials such as metal, nonmetal, permanent magnet or soft magnet.
In some embodiments, the magnetic member may be selected from magnetic steel. The most original definition of magnetic steel is AlNiCo (AlNiCo is an abbreviation for AlNiCo in english), which is a kind of hard metal, such as iron, aluminum, nickel, cobalt, etc., sometimes copper, niobium, tantalum, used to make super-hard permanent-magnet alloy. The magnetic sensor has different metal components, different magnetic properties and different purposes, and is mainly used in the fields of various sensors, instruments, electronics, electromechanics, medical treatment, teaching, automobiles, aviation, military technology and the like. Alnico is the oldest type of magnetic steel, called natural magnet by people, and although it is the oldest, its outstanding adaptability to high temperatures makes it still one of the most important magnetic steels so far. Alnico can work normally at a high temperature of more than 500 ℃, which is the greatest characteristic of alnico, and in addition, the corrosion resistance is stronger than that of other magnets. These two features undoubtedly enable the reference member 300 to match the smooth progress of the welding work.
In another embodiment, the reference member 300 is a cylinder member (not shown) having a cylindrical cavity with a size matching the external size of the reinforcing bars 200, and a bottom thickness of 2 mm.
Therefore, when the cylindrical member needs to be installed, the cylindrical member is only required to be sleeved on the end part of the steel bar 200, and the end part of the steel bar 200 is ensured to be abutted to the bottom of the cylindrical member, so that when the bottom surface of the cylindrical member is flush with the surface of the steel plate 100, the end part of the steel bar 200 is ensured to be 2mm away from the surface of the steel plate 100.
In addition to the above, in some embodiments, in order to further ensure the requirement that the end of the steel bar 200 is 2mm away from the surface of the steel plate 100, a first sensor is provided on the surface of the reference member 300, a second sensor is provided on the surface of the steel plate 100, and when the reference member 300 is flush with the surface of the steel plate 100, the first sensor and the second sensor are butted and send a warning signal.
Specifically, the first sensor and the second sensor may both be connected to a main control board, and the main control board may further be connected to an alarm unit or an acousto-optic unit, and once the first sensor and the second sensor are docked, the main control board may control the alarm unit or the acousto-optic unit to work, so that a worker can control the in-place information of the steel bar 200 in real time.
Therefore, through the arrangement of the first sensor and the second sensor, a worker can more intuitively know the position of the steel bar 200 and whether the steel bar 200 is in place.
Further, in order to ensure the accuracy of the butt joint of the first sensor and the second sensor, a baffle is arranged on the surface of the steel plate 100, an opening is formed in the baffle, and the first sensor is in butt joint with the second sensor through the opening.
Therefore, accurate butt joint information of the first sensor and the second sensor can be guaranteed through the limitation of the opening, and therefore the position accuracy of the steel bar 200 is guaranteed.
In some embodiments, the first sensor may be selected from one of a photoelectric sensor or an infrared sensor. The second sensor may also be one of a photoelectric sensor or an infrared sensor.
In order to ensure that the weld joint of the embedded part welded by the welding robot is uniform and flat; the welding spatter is little and basically no spatter exists; the weld joint is formed uniformly, and the appearance quality is relatively high. The invention provides welding parameters of a welding robot, which mainly comprise the following aspects:
welding wires: CHW-50C6, diameter 1.2 mm; gas: 80% of AR +20% of CO2, and the purity of the mixed gas is more than or equal to 99.5%;
the bottoming current is 260A, the voltage is 31V, the welding speed is 55cm/min, the swing frequency is 120 times/min, the swing width is 3mm, and the inclination angle of a welding gun is 90 degrees;
the capping current is 310A, the voltage is 30V, the welding speed is 21cm/min, the swing frequency is 60 times/min, the swing width is 7mm, and the inclination angle of a welding gun is 90 degrees.
By using the welding parameters, the weld joint can be formed beautifully and smoothly without polishing after welding.
As is apparent from the above description of the embodiments of the present invention, the present invention has at least the following technical effects:
1. the production quality of the embedded part is high, and the production efficiency is high;
2. the human input is few, has saved the human cost.
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 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.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (6)
1. A process method for welding an embedded part by using a welding robot is used for welding a steel bar to a steel plate to form the embedded part, and is characterized by comprising the following steps:
horizontally placing the steel plate with the opened holes on a horizontal plane;
taking a reference piece with the length dimension not exceeding the inner diameter of the hole and the thickness of 2 mm;
mounting the reference piece at the end part of the reinforcing steel bar to be welded;
inserting an end of the rebar into the hole until the reference is flush with the surface of the steel plate;
adjusting the steel bars to be vertical and performing spot welding;
placing the combination of the steel bars and the steel plates which are subjected to spot welding on a jig frame of the welding robot, detaching the reference piece, and welding by the welding robot;
wherein, the reference piece is internally provided with a magnetic piece or the whole reference piece is formed by the magnetic piece, so that the reference piece can be conveniently assembled and disassembled;
the reference piece is a cylindrical piece with a cylindrical cavity, the size of the cylindrical cavity of the cylindrical piece is matched with the external dimension of the reinforcing steel bar, and the bottom thickness of the cylindrical piece is 2 mm;
the surface of the reference piece is provided with a first sensor, the surface of the steel plate is provided with a second sensor, and when the reference piece is flush with the surface of the steel plate, the first sensor is in butt joint with the second sensor and sends a reminding signal.
2. The process of claim 1, wherein the first sensor is selected from one of a photosensor or an infrared sensor; the second sensor selects one of a photoelectric sensor or an infrared sensor.
3. The process of claim 1, wherein a baffle is disposed on a surface of the steel plate, an opening is disposed in the baffle, and the first sensor is interfaced with the second sensor through the opening.
4. The process of claim 1, wherein the welding robot performs the welding using the following parameters: welding wires: CHW-50C6, diameter 1.2 mm; gas: 80% of AR +20% of CO2, and the purity of the mixed gas is more than or equal to 99.5%.
5. The process of claim 1, wherein the welding robot performs the welding using the following parameters: the bottoming current is 260A, the voltage is 31V, the welding speed is 55cm/min, the swing frequency is 120 times/min, the swing width is 3mm, and the inclination angle of a welding gun is 90 degrees.
6. The process of claim 1, wherein the welding robot performs the welding using the following parameters: the capping current is 310A, the voltage is 30V, the welding speed is 21cm/min, the swing frequency is 60 times/min, the swing width is 7mm, and the inclination angle of a welding gun is 90 degrees.
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| CN110508907B (en) * | 2019-08-14 | 2021-04-30 | 山东核电设备制造有限公司 | Gas shield automatic welding method and system for perforation plug welding joint |
| CN111805119A (en) * | 2020-07-08 | 2020-10-23 | 成都航利航空科技有限责任公司 | Cylindrical plug-in welding structure and positioning method thereof |
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