CN115195132A - Ultrasonic welding method for automobile front wall sound insulation pad - Google Patents
Ultrasonic welding method for automobile front wall sound insulation pad Download PDFInfo
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- CN115195132A CN115195132A CN202210527995.1A CN202210527995A CN115195132A CN 115195132 A CN115195132 A CN 115195132A CN 202210527995 A CN202210527995 A CN 202210527995A CN 115195132 A CN115195132 A CN 115195132A
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- bedplate
- ultrasonic welding
- sound insulation
- front wall
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- 238000003466 welding Methods 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000009413 insulation Methods 0.000 title claims abstract description 34
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 description 12
- 239000004033 plastic Substances 0.000 description 12
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005192 partition Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004023 plastic welding Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7841—Holding or clamping means for handling purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
- B29C65/7879—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined said parts to be joined moving in a closed path, e.g. a rectangular path
- B29C65/7882—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined said parts to be joined moving in a closed path, e.g. a rectangular path said parts to be joined moving in a circular path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/87—Auxiliary operations or devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
The patent provides a method for welding the automobile front wall sound insulation pad with high operation efficiency, improved welding quality and reduced reject ratio. The double-station ultrasonic welding workbench is provided with a rotating bedplate, a six-axis robot fixed on one side of the bedplate, and an ultrasonic welding device arranged on the six-axis robot, wherein a first positioning device and a second positioning device for respectively positioning a first workpiece and a second workpiece are arranged on the bedplate; the method comprises the following steps: positioning a first workpiece on a first positioning device, rotating a bedplate to enable the first workpiece to rotate to a side close to a six-axis robot, and welding the first workpiece by an ultrasonic welding device under the driving of the six-axis robot; during welding of the first workpiece, a second workpiece is positioned on a second positioning device.
Description
Technical Field
The patent relates to ultrasonic welding, in particular to a method for carrying out ultrasonic welding on automotive interior parts such as automobile front wall sound insulation pads and the like by adopting two stations.
Background
At present, the production mode in the field of welding of the automobile front wall sound insulation pad and welding of plastic pieces is manual or semi-manual multi-process step-by-step production, so that the labor intensity of workers is high, the production cost is high, the requirement on the skill level of workers is strict, and the position deviation exists among the manual positioning base material, the plastic pieces and the sound insulation pad, so that the standardization and the consistency cannot be achieved; the firmness degree of the manually welded sound insulation pad and the plastic part cannot reach the standard and consistency, the rejection rate is high, and the manual operation controls the time and the force of ultrasonic welding to have errors, so that the conditions of insufficient welding or welding omission and the like are caused.
Disclosure of Invention
The patent aims at providing an automobile front wall sound insulation pad ultrasonic welding method which is high in operation efficiency, improves welding quality and reduces the reject ratio.
The ultrasonic welding method for the automobile front wall sound insulation pad adopts a double-station ultrasonic welding workbench, the double-station ultrasonic welding workbench is provided with a rotating bedplate, a six-axis robot fixed on one side of the bedplate and an ultrasonic welding device arranged on the six-axis robot, and the bedplate is provided with a first positioning device and a second positioning device which are used for respectively positioning a first workpiece and a second workpiece;
the ultrasonic welding method for the automobile front wall sound insulation pad comprises the following steps:
A. positioning a first workpiece on a first positioning device, rotating a bedplate to enable the first workpiece to rotate to one side close to a six-axis robot, and welding the first workpiece by an ultrasonic welding device under the driving of the six-axis robot;
B. during welding of the first workpiece, a second workpiece is positioned on a second positioning device.
After the step B, the ultrasonic welding method for the automobile front wall sound insulation pad further comprises the step C, D, E, F:
C. after the welding of the first workpiece is finished, the bedplate is rotated to enable the second workpiece to rotate to one side close to the six-axis robot, and the ultrasonic welding device is driven by the six-axis robot to weld the second workpiece;
D. in the process of welding the second workpiece, taking down the welded first workpiece, and positioning the first workpiece to be welded on the first positioning device;
E. after the second workpiece is welded, the bedplate is rotated to enable the first workpiece to rotate to one side close to the six-axis robot, and the ultrasonic welding device is driven by the six-axis robot to weld the first workpiece;
F. and in the process of welding the first workpiece, taking down the welded second workpiece, and positioning the second workpiece to be welded on the second positioning device.
The ultrasonic welding method for the automobile front wall sound insulation pad and the double-station ultrasonic welding workbench further comprise the following steps:
a rack;
the bedplate is rotationally arranged on the rack;
and the driving device is arranged on the rack and connected with the bedplate so as to drive the bedplate to rotate relative to the rack.
According to the ultrasonic welding method for the automobile front wall sound insulation pad, the first workpiece and the second workpiece are two different workpieces, and the first positioning device and the second positioning device are two different positioning devices.
According to the ultrasonic welding method for the automobile front wall sound insulation pad, the center of the upper surface of the rack is lower, and the periphery of the upper surface of the rack is higher; the driving device comprises an outer gear ring which is fixed on the lower surface of the bedplate and is positioned at the central part of the upper surface of the rack, the outer gear ring is in sliding fit with the guide ring in the circumferential direction, and the lower end surface of the guide ring is fixed at the central part of the upper surface of the rack; the driving gear meshed with the outer gear ring is arranged on the output shaft of the driving motor; the periphery of the upper surface of the rack is provided with a supporting cylinder, and the ball arranged on the supporting cylinder in a rolling way is contacted with the lower surface of the bedplate.
According to the ultrasonic welding method for the automobile front wall sound insulation pad, the clamping hole is formed in the lower surface of the bedplate far away from the outer gear ring, the clamping cylinder is arranged on the periphery of the upper surface of the bench, a piston rod of the clamping cylinder can extend into the clamping hole (certainly can also withdraw from the clamping hole), and the bedplate cannot rotate relative to the bench when the piston rod extends into the clamping hole.
According to the ultrasonic welding method for the automobile front wall sound insulation pad, the bedplate is provided with the central hole coaxial with the guide ring, the lower end of the vertical rod penetrating through the central hole is fixedly connected to the rack, and the upper part of the vertical rod is provided with the camera for shooting the first positioning device and the first workpiece or the second positioning device and the second workpiece; the output of the camera is connected with a controller, and the controller is electrically connected with the driving motor and the clamping cylinder so as to control the driving motor and the clamping cylinder to act.
The ultrasonic welding method for the automobile front wall sound insulation pad further comprises a driven gear which is meshed with the outer gear ring and is rotatably arranged on the rack, an encoder arranged on the driven gear, and the output of the encoder is connected with the controller; the driving motor is a three-phase asynchronous motor which is electrically connected with the controller through a frequency converter; the controller determines the rotation angle of the bedplate according to the input signal of the encoder and controls the action of the three-phase asynchronous motor through the frequency converter.
According to the ultrasonic welding method for the automobile front wall sound insulation pad, the baffle plate used for isolating the first positioning device from the second positioning device is arranged on the bedplate.
In the ultrasonic welding method for the automobile front wall sound insulation pad, the ultrasonic welding device is provided with two welding heads.
According to the ultrasonic welding method for the automobile front wall sound insulation pad, the first positioning device and the second positioning device are respectively fixed on the first positioning seat and the second positioning seat, and the first positioning seat and the second positioning seat are detachably arranged on the upper portion of the bedplate.
The beneficial effect of this patent:
1. the cooperation of six robots and ultrasonic welding device is used and has been shortened artificial work load and working strength, has improved output and efficiency. Six-axis robot, ultrasonic welding device belong to prior art. The welding head in the ultrasonic welding device is clamped by the manipulator of the six-axis robot, and the six-axis robot is driven to move according to a set track.
2. The table plate of the patent is provided with two stations determined by the first positioning device and the second positioning device, and two workpieces, namely a first workpiece and a second workpiece, can be placed on the table plate. The two stations are alternately used, when a robot welds a workpiece, a worker can continuously place the workpiece to be welded on the other station, the robot welds the workpiece, the table plate rotates to rotate the station where the workpiece to be welded is placed to the manual operation side, the station where the workpiece to be welded is placed rotates to the welding position side of the robot, and the robot welds the workpiece. And the double stations are used alternately, so that the waiting time and the energy consumption caused by the idle running of the equipment are reduced.
3. The first and second workpieces may be two different workpieces so that the different workpieces may be welded alternately. Of course, the first workpiece and the second workpiece may be the same workpiece. The positioning device for positioning the workpiece belongs to the prior art, and the specific structure and the like of the positioning device are determined according to the shape and the like of the workpiece to be positioned, so long as the workpiece can be reliably positioned on the bedplate, and the workpiece is prevented from moving in the welding process. If only be used for before enclosing the automobile and give sound insulation and fill up when welding, this first work piece and second work piece are the automobile before enclosing and give sound insulation and fill up, and at this moment, first positioner is also the same with second positioner.
4. The bedplate is driven to rotate by the outer toothed ring rotating relative to the guide ring, rotates stably, reliably and flexibly, and is supported by balls at the lower part of the periphery of the bedplate, so that the bedplate is prevented from deforming in operation.
5. When the welding operation is carried out, a piston rod of the clamping cylinder extends into the clamping hole, and the bedplate cannot rotate relative to the rack so as to prevent the bedplate from generating displacement risk during welding of the six-axis robot.
6. The automatic correction device is provided with a visual monitoring system such as a camera, and is used for photographing and scanning whether the positions of workpieces placed by a worker are correct, whether the quantity of the workpieces is short, whether the positive direction and the negative direction of the workpieces are consistent and the like, comparing the position of the workpieces with the position of the workpieces placed by the worker, and the quantity of the workpieces placed by the worker with the quantity of the workpieces placed by the worker.
7. The driving motor adopts a three-phase asynchronous motor, and an additional driving gear is matched with the outer gear ring, so that the transmission efficiency is higher. And by adopting the driven gear, the encoder can calculate the displacement distance (angle) conveniently and accurately control the platen to rotate. The encoder converts the displacement into a periodic electric signal, then converts the electric signal into counting pulses, and expresses the size of the displacement by the number of the pulses so as to achieve the effect of repeated accurate positioning. The alternating rotation use between two stations is realized by adopting a three-phase asynchronous motor, an encoder and a frequency converter. Encoders, frequency converters, etc. belong to the prior art.
8. Ultrasonic welding mechanism belongs to prior art. Two independent welding heads are adopted to adapt to more kinds of workpieces and various working conditions, the welding head vibrating with ultrasonic wave and ultrahigh frequency generates friction heat on the joint surfaces of the two workpieces at the welding position under moderate pressure to instantly melt and joint, the welding strength can be comparable to that of a body, watertight and airtight can be achieved, inconvenience caused by adopting auxiliary products is avoided, and efficient and clean welding is realized.
9. The six-axis robot is used for replacing manual work to weld the base material, so that the production efficiency and the product quality are improved; the visual system carries out the handle accuse of position to every sound insulation pad and working of plastics, guarantees the uniformity and the accuracy of every product, has improved production efficiency and production quality greatly. This patent can be used for to automotive interior board and other field ultrasonic bonding's technical innovation, effectual development that promotes the automobile industry when creating economic benefits for the enterprise.
10. The first positioning seat and the second positioning seat are detachably arranged on the upper portion of the bedplate, so that the positioning devices suitable for different workpieces can be conveniently replaced, and the application range is improved.
Drawings
FIG. 1 is an overall view of a dual-station ultrasonic welding bench;
FIG. 2 is a schematic view of a dual station ultrasonic welding station with the housing removed;
FIG. 3 is a perspective view of a pallet, fixture, stand, etc.;
FIG. 4 is a perspective view of a platen, gantry, robot, etc.;
FIG. 5 is a perspective view of a platen, stand, etc.;
fig. 6 is a perspective view of the stage, the driving device, and the like;
fig. 7 is a perspective view of the driving device and the like;
fig. 8 is a perspective view of the stand, the card device, and the like.
In the figure, a bedplate 1, a first positioning device 11, a second positioning device 12, a baffle plate 13, a first positioning seat 14, a second positioning seat 15, a central hole 18, a clamping hole 19,
the number of stages 2, the partition 21,
the driving device 3 comprises an external gear ring 31, a guide ring 32, a driving gear 33, a supporting cylinder 34, balls 35 and a driving motor 36.
The locking device 4, the locking lever 41,
a control system 5, a driven gear 51, a display screen 52, a photoelectric sensor 53,
the visual inspection system 6, the vertical bars 62, the cross bars 63,
the device comprises a housing 7, an ultrasonic welding device 8, a welding head 81 and a six-axis robot 9.
Detailed Description
The double-station ultrasonic welding workbench comprises a bedplate 1, a rack 2, a driving device 3, a clamping device 4, a control system 5, a visual detection system 6, a housing 7, an ultrasonic welding device 8 and a six-axis robot 9.
The center of the upper surface of the bench 2 is lower and the periphery is higher.
The bedplate 1 is rotationally arranged on the rack; the bedplate is provided with a central hole 18 and a clamping hole 19, wherein the clamping hole is arranged on the bedplate 1 far away from the central hole.
The first positioning device 11 is used for positioning a first workpiece to be subjected to ultrasonic welding and is fixed on a first positioning seat 14.
The second positioning device 12 is used for positioning a second workpiece to be ultrasonically welded, and is fixed to the second positioning seat 15. The first positioning device 11 (or the first positioning seat 14) and the second positioning device 12 (or the second positioning seat 15) are oppositely arranged, and the first positioning seat 14 and the second positioning seat 15 are connected to the upper part of the bedplate 1 in a bolt connection mode or other detachable connection modes. The bedplate 1 is provided with a baffle 13 for isolating the first positioning device, the first positioning seat, the second positioning device and the second positioning seat, and the baffle 13 is positioned at two sides of the central hole.
The six-axis robot 9 is fixed on one side of the bedplate, and the bedplate can drive the first workpiece or the second workpiece to move to a position close to the six-axis robot.
The ultrasonic welding device 8 has two welding heads 81, which are disposed on the sixth axis of the six-axis robot, and move under the drive of the six-axis robot to weld the first workpiece or the second workpiece that moves near the six-axis robot.
The driving device 3 mainly includes an external gear ring 31, a guide ring 32, a driving gear 33, a support cylinder 34, balls 35, and a driving motor 36.
The outer gear ring 31 is fixed on the lower surface of the bedplate and positioned at the central part of the upper surface of the rack, the outer gear ring is in sliding fit with the guide ring 32 in the circumferential direction, and the lower end surface of the guide ring is fixed at the central part of the upper surface of the rack 2; a drive gear 33 engaged with the outer ring gear is provided on an output shaft of a drive motor (three-phase asynchronous motor) 36; a support cylinder 34 is provided on the outer periphery of the upper surface of the table frame 2, and balls 35 rolling on the support cylinder are in contact with the lower surface of the table plate.
The blocking device 4 comprises a blocking cylinder, a lock rod 41 and the like. The table is provided with a clamping cylinder, the upper end of a piston rod of the clamping cylinder is connected with a lock rod 41, the lock rod 41 can extend into the clamping hole 19 under the driving of the clamping cylinder, and the table plate cannot rotate relative to the table when the lock rod 41 extends into the clamping hole 19.
The control system 5 includes a driven gear 51, an encoder, a controller, a display screen 52, a photosensor 53, and the like. The driven gear 51 is engaged with the external gear ring and rotatably provided on the table 2. The encoder is arranged on the driven gear, and the output of the encoder is connected with the controller; the three-phase asynchronous motor is electrically connected with the controller through the frequency converter; the controller determines the rotation angle of the bedplate according to the input signal of the encoder and controls the action of the three-phase asynchronous motor through the frequency converter.
The vision inspection system 6 includes a camera, a vertical bar 62, a horizontal bar 63, and the like. The lower end of a vertical rod 62 penetrating through a central hole 18 in the bedplate is fixedly connected to the stand, the upper part of the vertical rod is fixedly provided with a cross rod 63, and the lower part of the cross rod is provided with a camera for shooting a first positioning device and a first workpiece or a second positioning device and a second workpiece; the output of the camera is connected with a controller, and the controller is electrically connected with the driving motor 36 and the clamping cylinder so as to control the driving motor and the clamping cylinder to act.
Half of the rack 2, half of the bedplate 1, the six-axis robot 9 and the like are arranged in the housing by a large housing 7, so that the appearance is attractive and raised dust can be blocked; the housing 7 is provided with a display screen 52 electrically connected to the controller. The partition boards 21 are arranged on two sides of the stand 2 outside the housing, and the manual operation position is between the partition boards 21. Photoelectric sensors 53 for detecting whether a person stands are arranged on the opposite inner sides of the two partition boards 1, and the outputs of the photoelectric sensors are connected with a controller.
All state information and alarm information of the display screen are displayed to an operator in the most intuitive mode. In the visual detection system, a high-definition industrial camera shoots each product and is connected with a central display screen; six axis robot welding mechanism, six joints are better to weld to complicated position. The working efficiency is improved, and the product quality is improved; the working platform is rotated, and double stations are alternately used, so that the overall productivity is improved; the housing sheet metal is coated by plastic spraying, so that the appearance is attractive and raised dust can be blocked; the protection clapboard, the baffle and the like can protect the safety during manual operation; the safety light curtain such as photoelectric sensor guarantees operating personnel's safety. The rotating ball assists in supporting the whole platform; the clamping device fixes the bedplate after the motor rotates in place so as to prevent the bedplate from generating displacement risk during welding of the six-axis robot; the driven gear facilitates the encoder to calculate the displacement distance for the operation of the precise control platform.
The process flow comprises the following steps:
starting up the machine, selecting a corresponding program in the program, and confirming that the working environment, the voltage and the air pressure are normal.
Manually placing a body part of a first workpiece on a first positioning device → the first positioning device acts to press the body part of the first workpiece → manually placing a plastic part on the body part of the first workpiece → pressing a confirmation key → visually detecting the plastic part → the platen rotates, moving the first workpiece (the body part and the plastic part) to a welding zone inside the housing → the six-shaft robot drives the ultrasonic welding device to weld the first workpiece, welding the plastic part and the body part of the first workpiece together, simultaneously manually placing a second workpiece body part on a second positioning device → the second positioning device acts to press the body part of the second workpiece → manually placing the plastic part on the body part of the second workpiece → pressing the confirmation key → visually detecting the plastic part platen rotates, moving the second workpiece (the body part and the plastic part) to the welding zone inside the housing → the six-shaft robot drives the ultrasonic welding device to weld the second workpiece together, welding the plastic part and the body part of the second workpiece together, and manually taking off the welded first workpiece from the first positioning device, and then placing the body part of the first workpiece to be welded on the positioning device. Thereby performing the cyclic operation.
Claims (10)
1. The ultrasonic welding method for the automobile front wall sound insulation pad is characterized by comprising the following steps: the method comprises the following steps that a double-station ultrasonic welding workbench is adopted, the double-station ultrasonic welding workbench is provided with a rotating bedplate, a six-axis robot fixed on one side of the bedplate and an ultrasonic welding device arranged on the six-axis robot, and a first positioning device and a second positioning device which are used for respectively positioning a first workpiece and a second workpiece are arranged on the bedplate;
the ultrasonic welding method for the automobile front wall sound insulation pad comprises the following steps:
positioning a first workpiece on a first positioning device, rotating a bedplate to enable the first workpiece to rotate to a side close to a six-axis robot, and welding the first workpiece by an ultrasonic welding device under the driving of the six-axis robot;
during welding of the first workpiece, a second workpiece is positioned on a second positioning device.
2. The ultrasonic welding method for the automobile front wall sound insulation pad as claimed in claim 1, which is characterized in that: after step B, it also includes a step C, D, E, F, executed in a loop:
after the welding of the first workpiece is finished, the bedplate is rotated to enable the second workpiece to rotate to one side close to the six-axis robot, and the ultrasonic welding device is driven by the six-axis robot to weld the second workpiece;
in the process of welding the second workpiece, taking down the welded first workpiece, and positioning the first workpiece to be welded on the first positioning device;
after the second workpiece is welded, the bedplate is rotated to enable the first workpiece to rotate to one side close to the six-axis robot, and the ultrasonic welding device is driven by the six-axis robot to weld the first workpiece;
and in the process of welding the first workpiece, taking down the welded second workpiece, and positioning the second workpiece to be welded on the second positioning device.
3. The ultrasonic welding method for the automobile front wall sound insulation pad as claimed in claim 1, which is characterized in that:
duplex position ultrasonic bonding workstation still includes:
a rack;
the bedplate is rotationally arranged on the rack;
and the driving device is arranged on the rack and connected with the bedplate so as to drive the bedplate to rotate relative to the rack.
4. The ultrasonic welding method for the automobile front wall sound insulation pad as claimed in claim 1, which is characterized in that: the first and second workpieces are two different workpieces and the first and second positioning devices are two different positioning devices.
5. The ultrasonic welding method for the automobile front wall sound insulation pad as claimed in claim 3, which is characterized in that: the center of the upper surface of the bench is low and the periphery is high; the driving device comprises an outer gear ring which is fixed on the lower surface of the bedplate and is positioned at the central part of the upper surface of the rack, the outer gear ring is in sliding fit with the guide ring in the circumferential direction, and the lower end surface of the guide ring is fixed at the central part of the upper surface of the rack; the driving gear meshed with the outer gear ring is arranged on the output shaft of the driving motor; the periphery of the upper surface of the rack is provided with a supporting cylinder, and the ball arranged on the supporting cylinder in a rolling way is contacted with the lower surface of the bedplate.
6. The ultrasonic welding method for the automobile front wall sound insulation pad as claimed in claim 5, which is characterized in that: the lower surface of the bedplate far away from the outer gear ring is provided with a clamping hole, the periphery of the upper surface of the rack is provided with a clamping cylinder, a piston rod of the clamping cylinder can extend into the clamping hole, and the bedplate can not rotate relative to the rack when the piston rod extends into the clamping hole.
7. The ultrasonic welding method for the automobile front wall sound insulation pad as claimed in claim 6, which is characterized in that: the bedplate is provided with a central hole coaxial with the guide ring, the lower end of a vertical rod penetrating through the central hole is fixedly connected to the rack, and the upper part of the vertical rod is provided with a camera for shooting a first positioning device and a first workpiece or a second positioning device and a second workpiece; the output of the camera is connected with a controller, and the controller is electrically connected with the driving motor and the clamping cylinder so as to control the driving motor and the clamping cylinder to act.
8. The ultrasonic welding method for the automobile front wall sound insulation pad as claimed in claim 7, which is characterized in that: the automatic transmission mechanism also comprises a driven gear which is meshed with the outer gear ring and is rotationally arranged on the rack, and an encoder which is arranged on the driven gear, wherein the output of the encoder is connected with the controller; the driving motor is a three-phase asynchronous motor which is electrically connected with the controller through a frequency converter; the controller determines the rotation angle of the bedplate according to the input signal of the encoder and controls the action of the three-phase asynchronous motor through the frequency converter.
9. The ultrasonic welding method for the automobile front wall sound insulation pad as claimed in claim 1, which is characterized in that: a baffle plate for isolating the first positioning device from the second positioning device is arranged on the bedplate.
10. The ultrasonic welding method for the automobile front wall sound insulation pad as claimed in claim 1, characterized in that: the ultrasonic welding device has two welding heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210527995.1A CN115195132A (en) | 2022-05-16 | 2022-05-16 | Ultrasonic welding method for automobile front wall sound insulation pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210527995.1A CN115195132A (en) | 2022-05-16 | 2022-05-16 | Ultrasonic welding method for automobile front wall sound insulation pad |
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| Publication Number | Publication Date |
|---|---|
| CN115195132A true CN115195132A (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210527995.1A Pending CN115195132A (en) | 2022-05-16 | 2022-05-16 | Ultrasonic welding method for automobile front wall sound insulation pad |
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| US20090212090A1 (en) * | 2005-04-22 | 2009-08-27 | Franz Hepp | Industrial welding system |
| KR20070088194A (en) * | 2006-02-24 | 2007-08-29 | 윤성호 | A melting machine of rotary type |
| KR20080014556A (en) * | 2006-08-11 | 2008-02-14 | 주식회사 은성아이 | Fusion splicer |
| CN205290061U (en) * | 2015-12-30 | 2016-06-08 | 苏州润昇精密机械有限公司 | Be used for lithium cell welded ultrasonic welding machine |
| CN109421279A (en) * | 2017-08-24 | 2019-03-05 | 深圳市兴创源科技有限公司 | More solder joint device for ultrasonic welding |
| CN210733317U (en) * | 2019-10-15 | 2020-06-12 | 凯德仪表(深圳)有限公司 | High efficiency ultrasonic wave plastic heat sealing machine |
| CN211616653U (en) * | 2019-12-18 | 2020-10-02 | 广西东澄电子塑胶有限公司 | Ultrasonic welding device |
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