CN114406464A - Automatic laser welding station of high-efficient multiple operation - Google Patents
Automatic laser welding station of high-efficient multiple operation Download PDFInfo
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- CN114406464A CN114406464A CN202210210371.7A CN202210210371A CN114406464A CN 114406464 A CN114406464 A CN 114406464A CN 202210210371 A CN202210210371 A CN 202210210371A CN 114406464 A CN114406464 A CN 114406464A
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/142—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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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
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
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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
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to a laser welding technology, which is used for solving the problems that welding errors are caused by unstable clamping and wrong placement of a clamp on a workpiece and continuous operation of welding processes needs manual connection, in particular to an efficient multi-process automatic laser welding station; the invention controls a mechanical claw in a laser welding chamber of a sequence through an electric control system to take down a workpiece in a clamp and place the workpiece on a chain plate conveying line of a corresponding process for transmission, so that the connection of the welding process in a welding station does not need manual operation, and also relates to the distance between distance detection equipment and the workpiece, the distance between the distance detection equipment and the clamp, the distance between the distance detection equipment and a clamping point of the clamp, and the detection of clamping force through pressure detection equipment on the clamp, so that the accurate judgment of the clamping stability of the clamp on the workpiece is realized, and the welding error rate caused by the error of the placement position of the workpiece or the loosening of the clamping of the workpiece is reduced.
Description
Technical Field
The invention relates to a laser welding technology, in particular to an efficient multi-process automatic laser welding station.
Background
The laser welding is a high-efficiency precise welding method which uses a laser beam with high energy density as a heat source, the welding process belongs to a heat conduction type, namely, the surface of a workpiece is heated by laser radiation, the surface heat is diffused inwards by heat conduction, and the workpiece is melted by controlling parameters such as the width, the energy, the peak power, the repetition frequency and the like of laser pulse to form a specific molten pool;
during the welding work process of the three-chamber welding station which is divided into the first-order laser welding chamber, the second-order laser welding chamber and the welding robot chamber, after the first-order welding operation is finished, a workpiece which is finished with the first-order welding operation needs to be manually placed on a chain plate conveying line which is conveyed to the second-order laser welding chamber to carry out the second-order welding operation of the workpiece, so that the operation is very inconvenient, and the second-order laser welding operation cannot be smoothly carried out when no person operates, and the efficiency of the welding operation is seriously influenced; the welding operation of the workpieces is carried out in the welding station, a worker cannot control the welding operation in the welding process, and when the clamp is unstable for clamping the workpieces, the welding robot for processing operation according to a set program is easy to generate welding errors;
in view of the above technical problem, the present application proposes a solution.
Disclosure of Invention
The invention aims to control a mechanical claw in a laser welding chamber in a first sequence through an electric control system, take down a workpiece in a clamp and place the workpiece on a chain plate conveying line of a corresponding process for transmission, so that the connection of the welding process in a welding station does not need manual operation, and also relates to the distance detection operation between distance detection equipment and the workpiece, the distance between the distance detection equipment and the clamp and the distance between the distance detection equipment and a clamping point of the clamp, and through the detection of the clamping force by the pressure detection equipment on the clamp, the accurate judgment of the clamp on the workpiece clamping stability is realized, the welding error rate caused by the workpiece placing position error or workpiece clamping looseness is reduced, the problem that the welding error is caused by the unstable clamping and placing error of the clamp on the workpiece and the continuous operation of the welding process needs manual connection is solved, and the high-efficiency multi-process automatic laser welding station is provided.
The purpose of the invention can be realized by the following technical scheme:
a high-efficiency multi-process automatic laser welding station comprises a laser welding station body, wherein a first-process laser welding chamber is arranged on one side inside the laser welding station body, a welding robot chamber is arranged at the middle position inside the laser welding station body, a second-process laser welding chamber is arranged on the other side inside the laser welding station body, the inner side wall of the laser welding station body corresponds to the welding robot chamber, chain plate conveying lines are connected to the positions of the first-process laser welding chamber and the second-process laser welding chamber, and a workpiece conveying unit is arranged on the chain plate conveying lines;
the middle position inside the first-order laser welding chamber is connected with a first-order double-shaft position changing machine clamp, the middle position inside the second-order laser welding chamber is connected with a second-order double-shaft position changing machine clamp, the first-order double-shaft position changing machine clamp and the second-order double-shaft position changing machine clamp are provided with workpiece clamping units, the welding robot is provided with a laser welding unit on the welding robot inside the welding robot chamber, the inside of the first-order laser welding chamber is close to two sides of the first-order double-shaft position changing machine clamp and is connected with material racks, the inner side wall of the welding robot chamber is close to the first-order laser welding chamber and the position of the second-order laser welding chamber and is connected with a PVC lifting roller shutter door, the outer side wall of the laser welding station body is provided with an aluminum alloy roller shutter door corresponding to the positions of the first-order laser welding chamber and the second-order laser welding chamber, and the PVC lifting shutter door and the aluminum alloy roller door are provided with door control units, a dust remover is arranged on the outer side wall of the laser welding station body and close to the first-order laser welding chamber, and a smoke processing unit is arranged in the dust remover;
a smoke dust treatment system is arranged on one side of the outer side wall of the dust remover, a welding robot controller is connected to the position, close to the first-order laser welding chamber, of the outer side wall of the dust remover, and an electric control system is connected to the position, close to the dust remover, of the outer side wall of the laser welding station body;
the laser welding station body outer side wall is close to one side of the two-sequence laser welding chamber is connected with a marking machine, the laser welding station body outer side wall is close to the other side of the two-sequence laser welding chamber is connected with an unqualified product box, the upper portion of the inside of the laser welding station body is close to the one-sequence laser welding chamber and the position of the two-sequence laser welding chamber are provided with air pipes, the laser welding station body outer side wall is far away from one side of the electric control system is connected with a finished product inspection table, and a finished product detection unit is arranged on the finished product inspection table.
As a preferred embodiment of the present invention, an electronic control system includes:
the door control unit judges the position transmitted by the door opening and closing information after the electric control system receives the door opening and closing information transmitted by the laser welding unit and the workpiece transmission unit, and controls the rolling door at the corresponding position to be opened and closed according to the position;
the electric control system judges the position of the transmitted signal after receiving the workpiece placing signal from the workpiece clamping unit and controls the double-shaft positioner clamp at the corresponding position to clamp the workpiece according to the position;
the electric control system controls the welding robot to move to a specified position and then carries out welding operation on a clamped workpiece on the workpiece clamping unit after receiving a clamping stable signal transmitted from the workpiece clamping unit;
the workpiece transmission unit is used for judging the position where the transmission demand is transmitted when the electric control system receives the transmission demand transmitted from the door control unit and the laser welding unit, and controlling the chain plate transmission line at the corresponding position according to the position to transmit the position of the workpiece placed on the transmission line;
the finished product detection unit is used for controlling finished product qualified detection equipment in the welding station to carry out qualified detection and judgment on the workpiece when the electric control system receives a workpiece qualified detection requirement transmitted from the finished product detection unit;
and the electric control system judges the position where the welding signal is transmitted after receiving the signal for starting the welding operation transmitted from the laser welding unit, and controls the smoke processing unit in the corresponding welding chamber to transmit smoke generated in the welding process to the position of the dust remover through the air pipe according to the position for processing.
As a preferred embodiment of the present invention, the door opening and closing information includes a workpiece transmission signal, a welding transmission signal, and a protection door closing signal;
the workpiece transmission signal is data of the distance between the workpiece and the rolling door detected by the door control unit when the workpiece enters from the door control unit through the workpiece transmission unit in the process that the workpiece enters the welding station and reaches the corresponding welding chamber; when the electric control system receives door opening and closing information transmitted by the door control unit, the numerical value of the workpiece transmission approach signal is compared with the numerical value of the set door opening signal, and when the numerical value of the workpiece transmission approach signal is gradually reduced and is equal to the numerical value of the set door opening signal, the rolling door at the corresponding position is controlled to be opened;
a welding transmission signal is a door opening request sent to an electric control system when the workpiece needs to be transferred to the position of the second-sequence laser welding chamber after the welding operation of the workpiece is finished by the first-sequence laser welding chamber or the workpiece is directly transferred to the position of a finished product detection unit;
and the protective door closing signal is a door closing request transmitted to the electric control system by the detection equipment on the roller door controlled by the door control unit after detecting that the workpiece passes through the position of the roller door.
As a preferred embodiment of the present invention, after the workpiece conveying unit conveys the workpiece into the welding station, the electric control system receives the workpiece arrival signal and controls the gripper to place the workpiece on the dual-axis positioner clamp in the workpiece clamping unit, and the workpiece is placed on the dual-axis positioner clamp to trigger a signal generated by a touch sensor on the dual-axis positioner clamp.
In a preferred embodiment of the present invention, the clamping stability signal is a signal generated when a pressure sensor on a dual-axis positioner clamp detects that the clamping force on the workpiece reaches a set value during the clamping of the workpiece by the dual-axis positioner clamp in the workpiece clamping unit.
As a preferred embodiment of the present invention, the specific steps of the workpiece clamping unit when clamping the workpiece are as follows:
the method comprises the following steps: the distance detection device is positioned at the position of the double-shaft positioner clamp, detects the distance L1 between the distance detection device and the double-shaft positioner clamp, detects the shortest distance L2 between the distance detection device and a workpiece clamped by the double-shaft positioner clamp, detects the distance L3 between the distance detection device and the position of the workpiece clamped by the double-shaft positioner clamp, and transmits the detected data to the data processing device of the electric control system for data comparison and processing;
step two: the sensor on the inner side of the double-shaft positioner clamp detects the pressure data size of mutual extrusion between the clamped workpiece and the double-shaft positioner clamp, the detected data is recorded as S1, and the detected data is transmitted to the data processing equipment of the electric control system to be compared with the set standard data S;
step three: the data processing equipment of the electric control system obtains that the closer the ratio X1 of the clamping height data of the biaxial positioner clamp to half of the height data of the workpiece is to 1, the better the clamping stability of the biaxial positioner clamp is, namely the closer the ratio X1 (L1-L3) to (L1-L2)/2 is to 1, the better the clamping stability of the biaxial positioner clamp is, the closer the ratio X2 of the detected pressure data between the workpiece and the biaxial positioner clamp to 1, the better the clamping stability of the biaxial positioner clamp is, namely the closer the ratio X2 (S1/S) is to 1, the better the clamping stability of the biaxial positioner clamp is;
step four: carrying out normal distribution processing on the ratio X1 and the ratio X2 to obtain a numerical value, and utilizing a formula
And obtaining a stability value of clamping of the clamp of the biaxial positioner, wherein mu is a mathematical expectation, sigma is a standard deviation, e is a constant, obtaining values f (X1) and f (X2), obtaining a value f (1) by entering a normal distribution formula when the value of X is 1, comparing the values f (X1) and f (X2) with the value of the value f (1), and determining the clamping stability of the clamp of the biaxial positioner according to the obtained value.
Compared with the prior art, the invention has the beneficial effects that:
after receiving a welding operation completion signal transmitted from the welding robot controller, the electric control system controls a mechanical claw in the first-order laser welding chamber to take down a workpiece in the clamp, and places the placed workpiece on a chain plate conveying line of a corresponding process for transmission after reading a subsequent processing process of the workpiece, so that the connection of the welding process in the welding station does not need manual operation, and is more convenient and rapid;
in the welding process, the distance between distance detection equipment and the work piece, the distance between distance detection equipment and the anchor clamps and the distance detection operation between distance detection equipment and the anchor clamps centre gripping point are related to and through the detection of the clamping dynamics by the pressure detection equipment on the anchor clamps, the accurate judgment of the stability of the work piece clamping by the anchor clamps is realized, the welding error rate caused by the position error of the work piece placement or the loosening of the work piece clamping is reduced, and the laser welding efficiency is favorably improved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a main body structure view of the present invention;
FIG. 2 is a view showing the inner structure of the welding chamber according to the present invention;
in the figure: 1. laser welding the station body; 2. welding a robot chamber; 3. a laser welding chamber; 4. a second-order laser welding chamber; 5. a chain plate conveying line; 6. a material rack; 7. PVC lifting rolling doors; 8. a fume treatment system; 9. an electronic control system; 10. marking machine; 11. a welding robot controller; 12. a first-order double-shaft positioner clamp; 13. an aluminum alloy roller shutter door; 14. a two-sequence double-shaft positioner clamp; 15. a defective product box; 16. an air duct; 17. a dust remover; 18. and (5) a finished product inspection bench.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, an efficient multi-process automated laser welding station includes an electronic control system 9, a gate control unit, a workpiece clamping unit, a laser welding unit, a workpiece transmission unit, a finished product detection unit, and a smoke processing unit;
when the workpiece transmission unit at the position of the gate control unit operates, the workpiece placed on the chain plate conveying line 5 in the workpiece transmission unit can be transmitted in position, when the workpiece to be processed is transmitted to the position of the gate control unit on the chain plate conveying line 5, the process detection equipment on the gate control unit detects and judges the processing process of the workpiece to be processed, the detected result is transmitted to the electric control system 9 for storage, when the workpiece is transmitted to the position of the gate control unit, the electric control system 9 receives a workpiece approach signal detected by the detection equipment on and off the gate control unit, the electric control system 9 compares the magnitude of the approach signal value with a set standard approach signal value, when the magnitude of the approach signal value is equal to the set standard approach signal value, the signal is transmitted to control the gate control unit to open the aluminum alloy roller shutter doors 13 at the positions of the first-order laser welding chamber 3 and the second-order laser welding chamber 4, the workpiece to be processed moves towards the interior of the first-order laser welding chamber 3 and the interior of the second-order laser welding chamber 4 respectively under the action of the chain plate conveying line 5, and after the workpiece to be processed leaves from the position of the aluminum alloy rolling door 13 and moves out of the detection range of the internal detection equipment under the detection of the internal detection equipment on the gate control unit, the electric control system 9 receives signals of the internal detection equipment to control the closing of the aluminum alloy rolling door 13;
after the detection devices inside the first-order laser welding chamber 3 and the second-order laser welding chamber 4 in the laser welding station body 1 detect that the workpiece is conveyed to a specified position along the link conveying line 5, the electric control system 9 receives the signal sent by the detection device to control the mechanical claw in the corresponding welding chamber to move to the designated position for grabbing the workpiece, and after the grabbing operation is completed, under the control of an electric control system 9, a workpiece is placed on the inner sides of a first-order double-shaft positioner clamp 12 and a second-order double-shaft positioner clamp 14 in a first-order laser welding chamber 3 and a second-order laser welding chamber 4, after the workpiece is placed on the first-order double-shaft positioner clamp 12 and the second-order double-shaft positioner clamp 14, triggering touch sensors on the inner sides of the first-order double-shaft positioner clamp 12 and the second-order double-shaft positioner clamp 14 to enable the electric control system 9 to clamp the workpiece after receiving the touch signals, and judging the stability of the clamped workpiece;
the specific steps of the electric control system 9 when the workpiece clamping unit judges the workpiece clamping stability are as follows:
the method comprises the following steps: the distance detection device is positioned at the position of the double-shaft positioner clamp, detects the distance L1 between the distance detection device and the double-shaft positioner clamp, detects the shortest distance L2 between the distance detection device and a workpiece clamped by the double-shaft positioner clamp, detects the distance L3 between the distance detection device and the position of the workpiece clamped by the double-shaft positioner clamp, and transmits the detected data to the data processing device of the electric control system 9 for data comparison and processing;
step two: the sensor at the inner side of the double-shaft positioner clamp detects the mutual extrusion pressure data between the clamped workpiece and the double-shaft positioner clamp, the detected data is recorded as S1, and the detected data is transmitted to the data processing equipment of the electric control system 9 to be compared with the set standard data S;
step three: the data processing equipment of the electric control system 9 obtains through comparison that the closer the ratio X1 of the clamping height data of the biaxial positioner clamp to half of the height data of the workpiece is to 1, the better the clamping stability of the biaxial positioner clamp is, the closer the ratio X1 (L1-L3) to (L1-L2)/2 is to 1, the better the clamping stability of the biaxial positioner clamp is, the closer the ratio X2 of the detected pressure data between the workpiece and the biaxial positioner clamp to 1, the better the clamping stability of the biaxial positioner clamp is, the closer the ratio X2 (S1/S) is to 1, the better the clamping stability of the biaxial positioner clamp is;
step four: carrying out normal distribution processing on the ratio X1 and the ratio X2 to obtain a numerical value, and utilizing a formula
Obtaining a stability value clamped by the clamp of the biaxial positioner, wherein mu is a mathematical expectation, sigma is a standard deviation, e is a constant, obtaining values f (X1) and f (X2), obtaining a value f (1) by entering a normal distribution formula when the value of X is 1, comparing the values f (X1) and f (X2) with the value of the value f (1), and determining the clamping stability of the clamp of the biaxial positioner according to the obtained value;
if f (x1) is f (1) and f (x2) is f (1), the double-shaft positioner clamp is clamped at the middle position of the workpiece, and the clamping force between the double-shaft positioner clamp and the workpiece is moderate;
if f (x1) < f (1) and f (x2) < f (1), the double-shaft positioner clamp is clamped at an upper position or a lower position of the middle position of the workpiece, the upper clamping position easily causes the double-shaft positioner clamp to influence the welding operation of the welding robot on the workpiece, the lower clamping position easily causes the double-shaft positioner clamp to unstably clamp the workpiece, the workpiece is easy to loosen when the welding robot performs the welding operation on the workpiece, and the welding position is wrong;
if f (x1) < f (1) and f (x2) < f (1), the double-shaft positioner clamp is clamped at a position which is higher or lower than the middle position of the workpiece, but the clamping force between the double-shaft positioner clamp and the workpiece is moderate; at the moment, the electronic control system 9 controls the adjustment of the height of the chassis for placing the workpiece in the double-shaft positioner clamp after receiving the signal, the adjustment is carried out in real time through detection data in the adjustment process, and the height adjustment of the chassis for placing the workpiece in the double-shaft positioner clamp is stopped when f (x1) is f (1);
if f (x1) is f (1), f (x2) is less than f (1), the double-shaft positioner clamp is clamped at the middle position of the workpiece, but the clamping force between the double-shaft positioner clamp and the workpiece is too large or too small; at the moment, the electric control system 9 controls the clamping force of the double-shaft positioner clamp to be adjusted after receiving a signal, the clamping force is compared through detection data in real time in the adjusting process, and the adjustment of the clamping force of the double-shaft positioner clamp is stopped when f (x2) is f (1);
when the electric control system 9 receives that the workpiece clamping unit clamps the workpiece to be stable and reaches a stable value, an electric signal is transmitted to a welding robot controller 11 in the laser welding unit to control the welding robot to move to a position of a first-order biaxial positioner clamp 12 in the first-order laser welding chamber 3, a protective door closing signal transmitted by the electric control system 9 to a door control unit is used for judging whether an aluminum alloy rolling door 13 at the position of the first-order laser welding chamber 3 is closed or not, and the welding robot is controlled to perform workpiece clamping welding operation after the aluminum alloy rolling door 13 is detected to be closed;
after receiving a welding operation completion signal transmitted by a welding robot controller 11 in the laser welding unit, the electric control system 9 calls a signal for judging a welding process of a workpiece to be processed when the workpiece to be processed at the position of the gate control unit is transmitted into the first-order laser welding chamber 3, judges the subsequent operation of the workpiece which has completed the first-order welding operation, and controls a mechanical claw in the first-order laser welding chamber 3 to place the workpiece which has completed the first-order welding operation on a chain plate conveying line 5 which corresponds to the next-order operation to be executed;
after receiving a signal that a workpiece transmission unit triggers the movement of the chain plate transmission line 5 in a corresponding two-sequence welding operation procedure due to the placement of a workpiece, the electric control system 9 controls the chain plate transmission line 5 in the workpiece transmission unit to start to transport the workpiece, and when the workpiece is transported to a gate control unit of a two-sequence laser welding chamber 4 on the chain plate transmission line 5, the electric control system 9 receives a welding transmission signal from the gate control unit of the two-sequence laser welding chamber 4, controls a PVC lifting rolling door 7 on the two-sequence laser welding chamber 4 to be opened, and controls the PVC lifting rolling door 7 to be closed after the workpiece to be processed leaves from the position of the PVC lifting rolling door 7 and moves out to the detection range of detection equipment under the detection of the detection equipment on the gate control unit of the two-sequence laser welding chamber 4;
after receiving a signal that a workpiece is placed on a chain plate conveying line 5 on a finished product detection process corresponding to a workpiece transmission unit to trigger the chain plate conveying line 5 to move, an electric control system 9 controls the chain plate conveying line 5 in the workpiece transmission unit to start to convey the workpiece, when the workpiece is conveyed to a gate control unit at the position of a finished product detection unit on the chain plate conveying line 5, the electric control system 9 receives a welding transmission signal from the position of the finished product detection unit to control a rolling door at the position of a finished product inspection table 18 to be opened, after detecting that the workpiece leaves from the position of the rolling door and moves out of a detection range of detection equipment on the rolling door at the position of the finished product inspection table 18, the electric control system 9 receives a protection door closing signal of the detection equipment to control the rolling door at the position of the finished product inspection table 18 to be closed, and after receiving a detection qualified signal transmitted from the finished product detection unit, controlling a marking machine 10 to mark the qualified workpieces, taking off the unqualified workpieces by a mechanical claw, placing the unqualified workpieces on a chain plate conveying line 5, conveying the unqualified workpieces to the inside of an unqualified product box 15 and storing the unqualified workpieces;
after the electric control system 9 transmits the workpiece to be processed at the position of the gate control unit on the two-sequence laser welding chamber 4, the mechanical claw in the two-sequence laser welding chamber 4 is controlled to transmit the workpiece to be processed into the two-sequence laser welding chamber 4 from the chain plate transmission line 5, the workpiece to be processed is placed on the two-sequence double-shaft positioner clamp 14, redundant workpieces are placed on the material rack 6 to be stored, after the electric control system 9 triggers a signal that the workpiece to be processed is placed on the two-sequence double-shaft positioner clamp 14, the two-sequence double-shaft positioner clamp 14 is controlled to clamp the two-sequence double-shaft positioner clamp 14, after the electric control system 9 receives a welding operation completion signal transmitted from the welding robot controller 11 in the two-sequence laser welding chamber 4, the mechanical claw in the two-sequence laser welding chamber 4 is controlled to place the workpiece, which is transmitted from the chain plate transmission line 5 to the position of the two-sequence double-shaft positioner clamp 14 in the two-sequence laser welding chamber 4 and completes the one-sequence welding operation, on the two-sequence double-shaft positioner clamp 14 Welding the workpiece to be machined and the workpiece which is subjected to the first-order welding operation on the machined workpiece;
when the electric control system 9 receives welding operation starting signals from the welding robot controllers 11 in the first-order laser welding chamber 3 and the second-order laser welding chamber 4 respectively, the dust remover 17 of the smoke processing unit in the smoke processing system 8 is controlled to perform dust removal operation on welding smoke generated in the first-order laser welding chamber 3 and the second-order laser welding chamber 4 due to welding operation respectively, and the absorbed smoke is transmitted to a specified position by the air pipe 16 to be processed.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. The efficient multi-process automatic laser welding station is characterized by comprising a laser welding station body (1), wherein a first-order laser welding chamber (3) is arranged on one side inside the laser welding station body (1), a welding robot chamber (2) is arranged at the middle position inside the laser welding station body (1), a second-order laser welding chamber (4) is arranged on the other side inside the laser welding station body (1), the inner side wall of the laser welding station body (1) corresponds to the welding robot chamber (2), chain plate conveying lines (5) are connected to the positions of the first-order laser welding chamber (3) and the second-order laser welding chamber (4), and workpiece conveying units are arranged on the chain plate conveying lines (5);
the utility model discloses a welding robot, including a preface laser welding room (3), inside intermediate position department is connected with one preface biax and shifts quick-witted anchor clamps (12), two preface laser welding room (4) inside intermediate position department is connected with two prefaces biax and shifts quick-witted anchor clamps (14), one preface biax shift quick-witted anchor clamps (12) with be provided with work piece centre gripping unit on two preface biax shift quick-witted anchor clamps (14), be provided with the laser welding unit on welding robot room (2) the inside welding robot, one preface laser welding room (3) is inside to be close to one preface biax shifts quick-witted anchor clamps (12) both sides and is connected with work or material rest (6), welding robot room (2) inside wall is close to one preface laser welding room (3) with two preface laser welding room (4) position department all is connected with PVC lift rolling slats door (7), laser welding station body (1) lateral wall corresponds one preface laser welding room (3) with two preface laser welding room (4) position department is provided with the aluminium alloy book is rolled up Door control units are arranged on the PVC lifting rolling door (7) and the aluminum alloy rolling door (13), a dust remover (17) is arranged on the outer side wall of the laser welding station body (1) close to the first-order laser welding chamber (3), and a smoke processing unit is arranged in the dust remover (17);
a smoke dust treatment system (8) is arranged on one side of the outer side wall of the dust remover (17), a welding robot controller (11) is connected to the position, close to the first-order laser welding chamber (3), of the outer side wall of the dust remover (17), and an electric control system (9) is connected to the position, close to the dust remover (17), of the outer side wall of the laser welding station body (1);
the laser welding station is characterized in that the outer side wall of the laser welding station body (1) is close to one side of the two-sequence laser welding chamber (4) is connected with a marking machine (10), the outer side wall of the laser welding station body (1) is close to the other side of the two-sequence laser welding chamber (4) is connected with a defective product box (15), the upper portion inside the laser welding station body (1) is close to the one-sequence laser welding chamber (3) and the position of the two-sequence laser welding chamber (4) is provided with an air pipe (16), the outer side wall of the laser welding station body (1) is far away from one side of the electric control system (9) is connected with a finished product inspection table (18), and a finished product detection unit is arranged on the finished product inspection table (18).
2. An efficient multi-process automated laser welding station according to claim 1, characterized in that the electronic control system (9) comprises:
the door control unit is used for judging the position transmitted by the door opening and closing information after the electric control system (9) receives the door opening and closing information transmitted by the laser welding unit and the workpiece transmission unit, and controlling the opening and closing of the roller shutter door at the corresponding position according to the position;
the electric control system (9) judges the position of the transmitted signal after receiving the workpiece placing signal from the workpiece clamping unit, and controls the double-shaft positioner clamp at the corresponding position to clamp the workpiece according to the position;
the electronic control system (9) controls the welding robot to move to a specified position and then carries out welding operation on a clamped workpiece on the workpiece clamping unit after receiving a clamping stable signal transmitted from the workpiece clamping unit;
the workpiece transmission unit is used for judging the position transmitted by the transmission demand when the electric control system (9) receives the transmission demand transmitted from the gate control unit and the laser welding unit, and controlling the chain plate transmission line (5) at the corresponding position according to the position to transmit the position of the workpiece placed on the transmission line;
the finished product detection unit is used for controlling finished product qualified detection equipment in the welding station to carry out qualified detection and judgment on the workpiece when the electronic control system (9) receives a workpiece qualified detection requirement transmitted from the finished product detection unit;
and the electric control system (9) judges the position where the welding signal is transmitted after receiving the signal for starting the welding operation transmitted from the laser welding unit, and controls the smoke processing unit in the corresponding welding chamber according to the position to transmit smoke generated in the welding process to the position of the dust remover (17) through the air pipe (16) for processing.
3. An efficient multi-process automated laser welding station as recited in claim 2, wherein the door opening and closing information includes workpiece transmission signals, welding transmission signals, and protective door closing signals;
the workpiece transmission signal is data of the distance between the workpiece and the rolling door detected by the door control unit when the workpiece enters from the door control unit through the workpiece transmission unit in the process that the workpiece enters the welding station and reaches the corresponding welding chamber; when receiving door opening and closing information transmitted by a door control unit, the electric control system (9) compares the numerical value of the workpiece transmission approach signal with the numerical value of the set door opening signal, and controls the roller shutter door at the corresponding position to open when the numerical value of the workpiece transmission approach signal is gradually reduced and is equal to the numerical value of the set door opening signal;
the welding transmission signal is a door opening request sent to the electric control system (9) when the workpiece needs to be transferred to the position of the second-sequence laser welding chamber after the welding operation of the workpiece is finished by the first-sequence laser welding chamber or the workpiece is directly transferred to the position of the finished product detection unit;
and a protective door closing signal is transmitted to a door closing request at the electric control system (9) by a detection device on the roller door controlled by the door control unit after detecting that the workpiece passes through the position of the roller door.
4. The high-efficiency multi-process automatic laser welding station as claimed in claim 2, wherein after the workpiece placing signal is used for conveying the workpiece to the inside of the welding station for the workpiece conveying unit, the electric control system (9) receives the workpiece reaching signal and controls the mechanical claw to place the workpiece on the double-shaft positioner clamp in the workpiece clamping unit, and the workpiece is placed on the double-shaft positioner clamp to trigger a signal generated by a touch sensor on the double-shaft positioner clamp.
5. The efficient multi-process automatic laser welding station as claimed in claim 2, wherein the clamping stabilization signal is a signal generated when a pressure sensor on the fixture of the double-shaft positioner detects that the clamping force on the workpiece reaches a set value during the clamping of the workpiece by the fixture of the double-shaft positioner in the workpiece clamping unit.
6. An efficient multi-process automated laser welding station as in claim 2 wherein the workpiece clamping unit is configured to perform the following steps in clamping the workpiece:
the method comprises the following steps: the distance detection device is positioned at the position of the double-shaft positioner clamp, detects the distance L1 between the distance detection device and the double-shaft positioner clamp, detects the shortest distance L2 between the distance detection device and a workpiece clamped by the double-shaft positioner clamp, detects the distance L3 between the distance detection device and the position of the workpiece clamped by the double-shaft positioner clamp, and transmits the detected data to the data processing device of the electric control system (9) for data comparison and processing;
step two: the sensor on the inner side of the double-shaft positioner clamp detects the mutual extrusion pressure data between the clamped workpiece and the double-shaft positioner clamp, the detected data is recorded as S1, and the detected data is transmitted to a data processing device of an electric control system (9) to be compared with set standard data S;
step three: the data processing equipment of the electric control system obtains that the closer the ratio X1 of the clamping height data of the biaxial positioner clamp to half of the height data of the workpiece is to 1, the better the clamping stability of the biaxial positioner clamp is, namely the closer the ratio X1 (L1-L3) to (L1-L2)/2 is to 1, the better the clamping stability of the biaxial positioner clamp is, the closer the ratio X2 of the detected pressure data between the workpiece and the biaxial positioner clamp to 1, the better the clamping stability of the biaxial positioner clamp is, namely the closer the ratio X2 (S1/S) is to 1, the better the clamping stability of the biaxial positioner clamp is;
step four: carrying out normal distribution processing on the ratio X1 and the ratio X2 to obtain a numerical value, and utilizing a formula
Obtaining the stability value clamped by the clamp of the biaxial positioner, wherein mu is mathematic expectation and sigma isAnd e is a constant, obtaining values f (X1) and f (X2), obtaining a value f (1) by entering a normal distribution formula when the value of X is 1, comparing the values f (X1) and f (X2) with the value of the value f (1), and determining the clamping stability of the biaxial positioner clamp according to the value obtained by comparison.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210210371.7A CN114406464A (en) | 2022-03-03 | 2022-03-03 | Automatic laser welding station of high-efficient multiple operation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210210371.7A CN114406464A (en) | 2022-03-03 | 2022-03-03 | Automatic laser welding station of high-efficient multiple operation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117020502A (en) * | 2023-10-08 | 2023-11-10 | 宁德时代新能源科技股份有限公司 | Spot inspection method, system and equipment for welding equipment |
| CN117484050A (en) * | 2023-12-29 | 2024-02-02 | 盐城耀晖人防防护设备科技有限公司 | Robot workstation for welding valve sills of civil air defense doors |
-
2022
- 2022-03-03 CN CN202210210371.7A patent/CN114406464A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117020502A (en) * | 2023-10-08 | 2023-11-10 | 宁德时代新能源科技股份有限公司 | Spot inspection method, system and equipment for welding equipment |
| CN117020502B (en) * | 2023-10-08 | 2024-02-27 | 宁德时代新能源科技股份有限公司 | Spot inspection method, system and equipment for welding equipment |
| CN117484050A (en) * | 2023-12-29 | 2024-02-02 | 盐城耀晖人防防护设备科技有限公司 | Robot workstation for welding valve sills of civil air defense doors |
| CN117484050B (en) * | 2023-12-29 | 2024-03-15 | 盐城耀晖人防防护设备科技有限公司 | Robot workstation for welding valve sills of civil air defense doors |
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