CN112171017A - Argon arc welds automatic weld special plane - Google Patents
Argon arc welds automatic weld special plane Download PDFInfo
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- CN112171017A CN112171017A CN201910585718.4A CN201910585718A CN112171017A CN 112171017 A CN112171017 A CN 112171017A CN 201910585718 A CN201910585718 A CN 201910585718A CN 112171017 A CN112171017 A CN 112171017A
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- screw rod
- screw
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910052786 argon Inorganic materials 0.000 title claims abstract description 24
- 238000003466 welding Methods 0.000 claims abstract description 103
- 230000005540 biological transmission Effects 0.000 claims abstract description 72
- 230000000007 visual effect Effects 0.000 claims abstract description 8
- 230000033001 locomotion Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- WLTSUBTXQJEURO-UHFFFAOYSA-N thorium tungsten Chemical compound [W].[Th] WLTSUBTXQJEURO-UHFFFAOYSA-N 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Images
Classifications
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/095—Monitoring or automatic control of welding parameters
- B23K9/0953—Monitoring or automatic control of welding parameters using computing means
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses an automatic special welding machine for argon arc welding, which comprises a gantry welding frame, a welding gun, a screw rod transmission system, a servo motor system, an electric control system, a visual system and a main control system, wherein the input end and the output end of the visual system are respectively connected with the first output end and the first input end of the main control system, the input end of the electric control system is connected with the second output end of the main control system, the output end of the electric control system is connected with the input end of the servo motor system, the screw rod transmission system is driven by the servo motor system, the screw rod transmission system is arranged on the gantry welding frame, and the welding gun is arranged on the screw rod transmission system. The invention can realize accurate and rapid welding, improve the working efficiency and reduce the labor cost; the welding surface is flat and smooth, no burr is generated, and the product quality is improved; in addition, the damage to human bodies is reduced in the welding process.
Description
Technical Field
The invention relates to the technical field of thin plate welding, in particular to an automatic welding special machine for argon arc welding.
Background
At present, the following three welding modes are basically adopted for low-carbon steel, low-alloy steel and stainless steel sheets (particularly the sheets with the thickness of less than 1.0 mm) at home and abroad:
(1) gas tungsten arc welding;
(2) gas metal arc welding;
(3) and (4) plasma arc welding.
Among the three welding modes, argon arc welding is commonly used in gas tungsten arc welding, i.e., argon is used as a shielding gas, and is generally used for welding nonferrous metals such as stainless steel and the like; the gas metal arc welding with the consumable electrode is mainly applied to carbon dioxide gas shielded welding and is mainly used for welding ferrous metals such as low-carbon steel, low-alloy steel and the like; plasma arc welding has the disadvantages of difficult adjustment of technological parameters, complex structure of equipment and electric control circuits, higher equipment cost which is 2-5 times of that of argon arc welding, and less application.
The robot welding is then too high with costs, and present argon arc welds the overwhelming majority of sheet metal welding and passes through manual operation, wastes time and energy and the quality is unstable, and moreover, argon arc welding operation exists three sides and to environment, human harmful factor:
(1) radioactivity
Thorium in thorium tungsten electrode is a radioactive element, and although the radiation dose of thorium tungsten electrode is small and within an allowable range during welding operation, if radioactive gas or particles enter a human body as a radiation source, the health of the body is seriously affected.
(2) High frequency electric field
When high-frequency arc ignition is adopted, the intensity of the generated high-frequency electric field is between 60 and 110V/M and exceeds the sanitary standard (20V/M) by multiple times.
(3) Produce harmful gases-ozone and nitrogen oxides
During argon arc welding, the temperature of an arc column is very high, and the ultraviolet radiation intensity is far higher than that of electric arc welding, so a large amount of ozone and nitrogen oxides can be generated in the welding process, particularly, the concentration of the ozone is far beyond the sanitary standard, and the ozone has great influence on human bodies, and is one of the main harmful factors of argon arc welding.
Disclosure of Invention
Based on the above, it is necessary to provide a special argon arc welding machine for automatic welding, which can achieve accurate and rapid welding, improve the working efficiency and reduce the labor cost; the welding surface is flat and smooth, no burr is generated, and the product quality is improved; in addition, the damage to human bodies is reduced in the welding process.
The technical scheme of the invention is as follows: the utility model provides an argon arc welds automatic weld special plane, includes longmen welding frame, welder, lead screw transmission system, servo motor system, electrical system, visual system and major control system, visual system's input and output respectively with major control system first output and first input are connected, electrical system's input is connected with major control system's second output, electrical system's output with servo motor system's input is connected, lead screw transmission system by servo motor system drive, lead screw transmission system locate longmen welding frame on, welder locate lead screw transmission system on, argon arc weld automatic weld special plane work flow as follows:
(1) acquiring a welding seam point pattern through a vision system, and sending the point pattern to a main control system;
(2) the main control system performs mathematical operation according to the point position graph to obtain an actual coordinate value of the welding line;
(3) the main control system calculates the movement track of the welding gun according to the actual coordinate value of the welding seam;
(4) the master control system generates control information according to the motion track and sends the control information to the electronic control system;
(5) the electric control system controls the servo motor system according to the control information sent by the main control system;
(6) the servo motor system drives the screw rod transmission system to move according to the motion track;
(7) the screw rod transmission system drives the welding gun to move for welding.
Firstly, shooting through a vision system to obtain a welding seam point position figure, then carrying out mathematical operation to obtain an actual coordinate value of a welding seam and sending the actual coordinate value to a servo execution mechanism, and carrying out track welding according to the coordinate value after the execution mechanism receives an instruction.
The electric part consists of a main control system, a visual system, an electric control system and servo motor system hardware. And finishing the plane welding action by adopting a visual imaging analysis function and an automatic control technology. The whole structure of the system coordinates the movement of the gantry type welding equipment and the welding gun through software drive to carry out multi-axis interpolation.
Preferably, the vision system is composed of an industrial camera.
Preferably, the screw transmission system comprises a first transmission screw rod, a second transmission screw rod, a third transmission screw rod and a fourth transmission screw rod, the first transmission screw rod and the second transmission screw rod are arranged in parallel, the third transmission screw rod is perpendicular to the first transmission screw rod, two ends of the third transmission screw rod are respectively movably connected to the screw rods of the first transmission screw rod and the second transmission screw rod, the fourth transmission screw rod is vertically arranged on the third transmission screw rod, and the fourth transmission screw rod is provided with the welding gun.
X, Y, Z-axis control is realized through four transmission screw rods, so that the accurate and fast welding is realized, the working efficiency is improved, and the labor cost is reduced; the welding surface is flat and smooth, no burr is produced, and the product quality is improved.
Preferably, the screw rod transmission system adopts grinding-grade screw rod nuts, linear bearings and concentric bearing parts to meet the requirement of mechanical precision.
Preferably, the electric control system comprises bus type drivers and a motion controller, wherein the motion controller is used for acquiring the IO state of each driver and controlling the servo motor system according to the acquired IO state.
Preferably, the main control system adopts an absolute value encoder to perform semi-closed loop control or full-closed loop control.
The argon arc welding automatic welding special machine can realize full-automatic feeding and welding processing after being matched with the automatic feeding device, so that the welding efficiency is higher.
The invention has the beneficial effects that:
(1) the invention can realize accurate and rapid welding, improve the working efficiency, improve the productivity and reduce the labor cost;
(2) the welding surface is flat and smooth, no burr is generated, and the product quality is improved;
(3) the invention adopts mechanical control to automatically weld, thereby avoiding the damage to human body in welding.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic workflow diagram of an embodiment of the present invention.
Reference numerals: 100-gantry welding frame, 200-welding gun, 300-screw rod transmission system, 400-servo motor system, 500-electric control system, 600-vision system and 700-main control system.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example one
As shown in fig. 1, an argon arc welding automatic welding special machine comprises a gantry welding rack 100, a welding gun 200, a screw rod transmission system 300, a servo motor system 400, an electric control system 500, a vision system 600 and a main control system 700, wherein an input end and an output end of the vision system 600 are respectively connected with a first output end and a first input end of the main control system 700, an input end of the electric control system 500 is connected with a second output end of the main control system 700, an output end of the electric control system 500 is connected with an input end of the servo motor system 400, the screw rod transmission system 300 is driven by the servo motor system 400, the screw rod transmission system 300 is arranged on the gantry welding rack 100, and the welding gun 200 is arranged on the screw rod transmission system 300.
As shown in fig. 2, the argon arc welding automatic welding special machine has the following working procedures:
(1) acquiring a welding seam point pattern through a vision system, and sending the point pattern to a main control system;
(2) the main control system performs mathematical operation according to the point position graph to obtain an actual coordinate value of the welding line;
(3) the main control system calculates the movement track of the welding gun according to the actual coordinate value of the welding seam;
(4) the master control system generates control information according to the motion track and sends the control information to the electronic control system;
(5) the electric control system controls the servo motor system according to the control information sent by the main control system;
(6) the servo motor system drives the screw rod transmission system to move according to the motion track;
(7) the screw rod transmission system drives the welding gun to move for welding.
Example two
In this embodiment, based on the first embodiment, the vision system 600 employs an industrial camera.
EXAMPLE III
In this embodiment, on the basis of the first embodiment, the lead screw transmission system 300 includes a first transmission lead screw 301, a second transmission lead screw 302, a third transmission lead screw 303 and a fourth transmission lead screw 304, the first transmission lead screw 301 and the second transmission lead screw 302 are arranged in parallel, the third transmission lead screw 303 is perpendicular to the first transmission lead screw 301, two ends of the third transmission lead screw 303 are respectively movably connected to the lead screws of the first transmission lead screw 301 and the second transmission lead screw 302, the fourth transmission lead screw 304 is vertically arranged on the third transmission lead screw 303, and the fourth transmission lead screw 304 is provided with the welding gun 200.
Example four
In this embodiment, on the basis of the third embodiment, the lead screw transmission system 300 adopts grinding-grade lead screw nuts, linear bearings and concentric bearing parts to meet the mechanical precision requirement.
EXAMPLE five
In this embodiment, on the basis of the first embodiment, the electronic control system 500 includes a bus driver and a motion controller, where the motion controller is configured to collect an IO state on each driver, and control the servo motor system according to the collected IO state.
EXAMPLE six
In this embodiment, on the basis of the first embodiment, the main control system 700 performs semi-closed loop control or full-closed loop control by using an absolute value encoder.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (6)
1. The argon arc welding automatic welding special machine is characterized by comprising a gantry welding frame, a welding gun, a screw rod transmission system, a servo motor system, an electric control system, a visual system and a main control system, wherein the input end and the output end of the visual system are respectively connected with the first output end and the first input end of the main control system, the input end of the electric control system is connected with the second output end of the main control system, the output end of the electric control system is connected with the input end of the servo motor system, the screw rod transmission system is driven by the servo motor system, the screw rod transmission system is arranged on the gantry welding frame, the welding gun is arranged on the screw rod transmission system, and the argon arc welding automatic welding special machine has the following working flow:
(1) acquiring a welding seam point pattern through a vision system, and sending the point pattern to a main control system;
(2) the main control system performs mathematical operation according to the point position graph to obtain an actual coordinate value of the welding line;
(3) the main control system calculates the movement track of the welding gun according to the actual coordinate value of the welding seam;
(4) the master control system generates control information according to the motion track and sends the control information to the electronic control system;
(5) the electric control system controls the servo motor system according to the control information sent by the main control system;
(6) the servo motor system drives the screw rod transmission system to move according to the motion track;
(7) the screw rod transmission system drives the welding gun to move for welding.
2. The argon arc welding automatic welding special machine according to claim 1, characterized in that the vision system is composed of an industrial camera.
3. The automatic welding machine special for argon arc welding according to claim 1, characterized in that the screw transmission system comprises a first transmission screw, a second transmission screw, a third transmission screw and a fourth transmission screw, the first transmission screw and the second transmission screw are arranged in parallel, the third transmission screw is perpendicular to the first transmission screw, two ends of the third transmission screw are respectively movably connected to the screws of the first transmission screw and the second transmission screw, the fourth transmission screw is vertically arranged on the third transmission screw, and the fourth transmission screw is provided with the welding gun.
4. The argon arc welding automatic welding special machine according to claim 1, characterized in that the screw rod transmission system adopts grinding stage screw rod nuts, linear bearings and concentric bearing parts to meet the mechanical precision requirement.
5. The argon arc welding automatic welding special machine according to claim 1, characterized in that the electric control system comprises bus type drivers and a motion controller, wherein the motion controller is used for collecting IO states on each driver and controlling the servo motor system according to the collected IO states.
6. The argon arc welding automatic welding special machine according to claim 1, characterized in that the main control system adopts an absolute value encoder to perform semi-closed loop control or full-closed loop control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910585718.4A CN112171017A (en) | 2019-07-01 | 2019-07-01 | Argon arc welds automatic weld special plane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910585718.4A CN112171017A (en) | 2019-07-01 | 2019-07-01 | Argon arc welds automatic weld special plane |
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| Publication Number | Publication Date |
|---|---|
| CN112171017A true CN112171017A (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910585718.4A Pending CN112171017A (en) | 2019-07-01 | 2019-07-01 | Argon arc welds automatic weld special plane |
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| CN (1) | CN112171017A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204148698U (en) * | 2014-10-21 | 2015-02-11 | 郑州佳合科技有限公司 | A kind of three-shaft linkage SERVO CONTROL welder based on ball-screw |
| CN104759736A (en) * | 2014-01-07 | 2015-07-08 | 中国国际海运集装箱(集团)股份有限公司 | Container corrugated plate welding robot and visual servo control system thereof |
| WO2015120734A1 (en) * | 2014-02-17 | 2015-08-20 | 华南理工大学 | Special testing device and method for correcting welding track based on machine vision |
| CN107931787A (en) * | 2018-01-16 | 2018-04-20 | 无锡信捷电气股份有限公司 | A kind of vision closed loop welding system and implementation method |
| CN108067777A (en) * | 2018-01-16 | 2018-05-25 | 无锡信捷电气股份有限公司 | A kind of corrugated plating welding system and trajectory processing control method |
-
2019
- 2019-07-01 CN CN201910585718.4A patent/CN112171017A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759736A (en) * | 2014-01-07 | 2015-07-08 | 中国国际海运集装箱(集团)股份有限公司 | Container corrugated plate welding robot and visual servo control system thereof |
| WO2015120734A1 (en) * | 2014-02-17 | 2015-08-20 | 华南理工大学 | Special testing device and method for correcting welding track based on machine vision |
| CN204148698U (en) * | 2014-10-21 | 2015-02-11 | 郑州佳合科技有限公司 | A kind of three-shaft linkage SERVO CONTROL welder based on ball-screw |
| CN107931787A (en) * | 2018-01-16 | 2018-04-20 | 无锡信捷电气股份有限公司 | A kind of vision closed loop welding system and implementation method |
| CN108067777A (en) * | 2018-01-16 | 2018-05-25 | 无锡信捷电气股份有限公司 | A kind of corrugated plating welding system and trajectory processing control method |
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Application publication date: 20210105 |