CN111299799B - Hot-press welding system and welding method - Google Patents

Hot-press welding system and welding method Download PDF

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Publication number
CN111299799B
CN111299799B CN202010187933.1A CN202010187933A CN111299799B CN 111299799 B CN111299799 B CN 111299799B CN 202010187933 A CN202010187933 A CN 202010187933A CN 111299799 B CN111299799 B CN 111299799B
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infrared
hot
workpiece
press welding
alarm
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CN111299799A (en
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王振鹏
何岩飞
蔡景灵
周俊杰
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Simmtech Electronics Xi'an Co ltd
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Simmtech Electronics Xi'an Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/02Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
    • B23K20/023Thermo-compression bonding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/26Auxiliary equipment

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The invention discloses a bonding welding system and a welding method, belonging to the technical field of hot-press welding, comprising a hot-press welding device, wherein a feeding port of the hot-press welding device is connected with a feeding conveying belt, two infrared distance measuring sensors are fixedly connected at positions of the hot-press welding device close to the feeding conveying belt, two infrared emitters are positioned at two sides of the feeding conveying belt, the impulse directions of the two infrared distance measuring sensors are arranged along the transmission direction of the feeding conveying belt, the distance between the two infrared distance measuring sensors is equal to the width of a workpiece, the hot-press welding device is connected with a control system, the control system comprises an infrared detection module and an alarm module, when the infrared rays emitted by the infrared distance measuring sensors are blocked, an electric signal is transmitted to the infrared detection module, the infrared detection module sends the electric signal to the alarm module, and the alarm module sends an alarm after receiving the electric signal, the invention has the effects of facilitating the workers to quickly put the workpiece and effectively improving the working efficiency.

Description

Hot-press welding system and welding method
Technical Field
The invention relates to the technical field of hot-press welding, in particular to a hot-press welding system and a welding method.
Background
At present, the hot-press welding is a welding process for connecting a flexible circuit board and a rigid circuit board, is used as a new manufacturing process and an important component in the technical field of microelectronic surface assembly, and is undoubtedly an important link for ensuring good quality of products.
In the prior art, reference may be made to chinese patent application publication No. CN107755838A, which discloses a thermocompression bonding apparatus, including a working platform, a lifting device, a thermocompression bonding head, and a tin feeding device for feeding a tin wire to the position of the thermocompression bonding head, where the thermocompression bonding head is installed at the lifting end of the lifting device, and the working platform is located below the thermocompression bonding head. In the hot-press welding device that this application provided, send the tin silk to the hot-press bonding head position through sending the tin device, melt the tin silk through the hot-press bonding head and adhere to the pad, and realize hot-press welding through the hot-press bonding head simultaneously, realize that the tin silk melts and hot-press welding operation through the hot-press bonding head promptly.
The above prior art solutions have the following drawbacks: when the PCB is welded by using a hot-press welding method, the welding accuracy required by the PCB is very high, so that the alignment work at the beginning of welding is particularly important, if the alignment work is not uniform, the subsequent welding accuracy is influenced, defective products are caused, the operation time is usually long when workers place the PCB, and the processing efficiency is influenced.
Disclosure of Invention
The invention aims to provide a hot-press welding system which is convenient for workers to quickly lay a workpiece and effectively improves the working efficiency.
The technical purpose of the invention is realized by the following technical scheme:
a hot-press welding system comprises a hot-press welding device, wherein a feeding port of the hot-press welding device is connected with a feeding conveying belt, two infrared distance measuring sensors are fixedly connected to the position, close to the feeding conveying belt, of the hot-press welding device, two infrared transmitters are positioned on two sides of the feeding conveying belt, the directions of impact of the two infrared distance measuring sensors are arranged along the transmission direction of the feeding conveying belt, the distance between the two infrared distance measuring sensors is equal to the width of a workpiece, the hot-press welding device is connected with a control system, and the control system comprises an infrared detection module and an alarm module;
the infrared detection module is connected with the two infrared ranging sensors, when infrared rays emitted by the infrared ranging sensors are blocked, electric signals are transmitted to the infrared detection module, and the infrared detection module sends the electric signals to the alarm module;
and the alarm module sends out an alarm after receiving the electric signal.
Through adopting above-mentioned scheme, the work piece of treating processing can be put along the infrared ray that two infrared emitter sent to the staff, if put the incline, alarm module can automatic alarm, reminds the staff for the staff can put the work piece well more easily, and the locating position is accurate, can not influence follow-up welding, and work efficiency is high, can effectively reduce off-the-shelf percentage of quality.
The invention is further configured to: the infrared detection module numbers the two infrared ranging sensors, and when infrared rays emitted by the infrared ranging sensors are blocked, numbered electric signals are transmitted to the infrared detection module;
the alarm module comprises two groups of alarms, each group of alarms corresponds to one number, and the alarms with the same number are controlled to alarm when electric signals with the numbers are received.
By adopting the scheme, the worker can judge which side of the workpiece is out of bounds by observing the alarm, and the worker can conveniently and quickly align the workpiece.
The invention is further configured to: the infrared distance measuring sensor detects the distance from the transmitting end to an object blocking infrared rays, compares the distance with a preset distance, and sends an electric signal to the infrared detection module and outputs a distance value with a number when the detected distance is smaller than the preset distance;
the infrared detection device further comprises an analog analysis module, the analog analysis module receives the distance value output by the infrared detection module, a digital analog image for simulating the outline of the workpiece is stored in the analog analysis module, and the analog analysis module rotates the digital analog image according to the received distance value and highlights the outline of the protruding boundary.
By adopting the scheme, the worker can quickly know the deflection direction and the approximate angle of the workpiece by observing the digital analog image, and the worker can conveniently adjust the workpiece.
The invention is further configured to: the analog analysis module calculates a rotation angle and displays the rotation angle when the digital analog image rotates.
By adopting the scheme, the worker can judge the angle of the workpiece to be rotated by observing the rotating angle displayed by the simulation analysis module, and the working efficiency of skilled workers can be effectively improved.
The invention is further configured to: the hot-pressing welding equipment comprises an upper welding head and a lower welding head, wherein an upper pressing plate is fixedly connected to the upper welding head, a lower pressing plate is fixedly connected to the lower welding head, the upper pressing plate is close to one side of the lower pressing plate and is fixedly connected with upper high-temperature-resistant Teflon, and the lower pressing plate is close to one side of the upper pressing plate and is fixedly connected with lower high-temperature-resistant Teflon.
By adopting the scheme, the upper high-temperature-resistant Teflon and the lower high-temperature-resistant Teflon can ensure that the welding spot is uniformly heated, the glue flowing probability is reduced, the glue accumulation of the welding head is not easy, and the residual glue pollution is reduced.
The invention aims to provide a hot-press welding method which is convenient for workers to quickly lay a workpiece and effectively improves the working efficiency.
The technical purpose of the invention is realized by the following technical scheme:
a method of thermocompression bonding comprising the steps of:
firstly, two infrared distance measuring sensors are arranged at positions, close to a feeding conveying belt, of hot-press welding equipment, so that infrared light emitted by the two infrared distance measuring sensors is parallel to each other, and the distance between the infrared light and the infrared distance measuring sensors is equal to the width of a workpiece;
secondly, the worker places the workpiece on a feeding conveying belt, and two infrared lights pass through the workpiece along two sides of the workpiece as far as possible;
thirdly, if the position of the workpiece is incorrect, an alarm on the hot-press welding equipment gives an alarm, and a worker adjusts the position of the workpiece; and if the position of the workpiece is correct, the worker starts the feeding conveying belt and the hot-press welding equipment to weld the workpiece.
By adopting the scheme, the workpiece can be placed easily by workers, the placing position is accurate, subsequent welding cannot be influenced, the working efficiency is high, and the defective rate of finished products can be effectively reduced.
The invention is further configured to: the third step also comprises:
if the workpiece is not positioned correctly, two alarms on the hot-press welding equipment can give an alarm according to which side the workpiece deflects.
By adopting the scheme, the worker can judge which side of the workpiece is out of bounds by observing the alarm, and the worker can conveniently and quickly align the workpiece.
The invention is further configured to: further comprising the steps of:
and fourthly, after the infrared distance measuring sensor detects the deflection angle of the workpiece, displaying a digital image of the outline of the workpiece on the hot-press welding equipment, and highlighting the part highlighting the boundary.
By adopting the scheme, the worker can quickly know the deflection direction and the approximate angle of the workpiece by observing the digital analog image, and the worker can conveniently adjust the workpiece.
The invention is further configured to: the fourth step also comprises:
and fourthly, displaying the deflection angle of the workpiece on the hot-press welding equipment.
By adopting the scheme, the worker can judge the angle of the workpiece to be rotated by observing the rotation angle displayed by the simulation analysis module, and the working efficiency of skilled workers can be effectively improved
The invention is further configured to: further comprising the steps of:
and fifthly, fixing a pressing plate and the high-temperature-resistant Teflon between the upper welding head and the lower welding head.
By adopting the scheme, the upper high-temperature-resistant Teflon and the lower high-temperature-resistant Teflon can ensure that the welding spot is uniformly heated, the glue flowing probability is reduced, the glue accumulation of the welding head is not easy, and the residual glue pollution is reduced.
In conclusion, the invention has the following beneficial effects:
1. the staff can put the work piece of treating processing along the infrared ray that two infrared emitter sent, if put and have the incline, alarm module can automatic alarm, reminds the staff, and the staff can judge which side of work piece is out of bounds through observing the alarm, and the staff of being convenient for sets the work piece fast. The workpiece can be placed easily by workers, the placing position is accurate, subsequent welding cannot be influenced, the working efficiency is high, and the defective rate of finished products can be effectively reduced.
2. The staff can know the work piece skew direction and roughly the angle fast through observing digital simulation image, the staff of being convenient for adjusts the work piece.
3. The upper high-temperature-resistant Teflon and the lower high-temperature-resistant Teflon can ensure that welding spots are heated uniformly, the glue flowing probability is reduced, glue is not easy to accumulate on a welding head, and the pollution of residual glue is reduced.
Drawings
FIG. 1 is a schematic overall structure diagram of the first embodiment;
FIG. 2 is a cross-sectional view of a protruding upper horn and lower horn of one embodiment;
FIG. 3 is a block diagram of a highlighted control system in one embodiment.
In the figure, 1, a hot-press welding device; 11. a feeding conveying belt; 12. an upper welding head; 121. an upper pressure plate; 122. adding high-temperature resistant Teflon; 13. a lower welding head; 131. a lower pressing plate; 132. low temperature resistant Teflon; 2. an infrared detection module; 21. an infrared ranging sensor; 3. an alarm module; 31. an alarm; 4. and a simulation analysis module.
Detailed Description
The first embodiment is as follows: a hot-press welding system is shown in figure 1 and comprises a hot-press welding device 1, wherein a feeding port of the hot-press welding device 1 is connected with a feeding conveying belt 11. Two infrared ranging sensors 21 are fixedly connected to the position, close to the feeding conveying belt 11, of the hot-press welding equipment 1, two infrared emitters are located on two sides of the feeding conveying belt 11, and the direction of impact of the two infrared ranging sensors 21 is arranged along the conveying direction of the feeding conveying belt 11. The distance between the two infrared ranging sensors 21 is equal to the width of the workpiece.
As shown in fig. 1 and 2, the thermocompression bonding apparatus 1 includes an upper bonding tool 12 and a lower bonding tool 13. An upper pressing plate 121 is fixedly connected to the upper welding head 12, and a lower pressing plate 131 is fixedly connected to the lower welding head 13. One side of the upper pressure plate 121 close to the lower pressure plate 131 is fixedly connected with an upper Teflon 122, and one side of the lower pressure plate 131 close to the upper pressure plate 121 is fixedly connected with a lower Teflon 132. The high-temperature resistant Teflon has excellent high-temperature resistance and anti-sticking property. The upper high-temperature-resistant Teflon 122 and the lower high-temperature-resistant Teflon 132 can enable welding points to be heated uniformly, reduce glue flowing probability, prevent glue from being accumulated on the welding head and reduce residual glue pollution.
As shown in fig. 1 and 3, the control system includes an infrared detection module 2, an alarm module 3, and an analog analysis module 4. Two infrared ranging sensors 21 are connected to infrared detection module 2, and infrared detection module 2 marks serial numbers to two infrared ranging sensors 21. When the infrared ray that infrared distance measuring sensor 21 sent is blockked, the signal of telecommunication of serial number is transmitted to infrared detection module 2, and infrared detection module 2 sends the signal of telecommunication with the mark for alarm module 3. The alarm module 3 comprises two sets of alarms 31, and the two sets of alarms 31 are respectively and fixedly connected to the positions, close to the two sides, of the hot-press welding equipment 1. Each group of alarms 31 corresponds to one serial number, and the alarms 31 with the same serial number are controlled to alarm when receiving the electric signals with the serial numbers. The staff can put the work piece of treating processing along the infrared ray that two infrared emitter sent, if put and have the incline, alarm module 3 can automatic alarm, reminds the staff. The staff can judge which side of work piece is out of bounds through observing alarm 31, and the staff of being convenient for sets the work piece fast. The workpiece can be placed easily by workers, the placing position is accurate, subsequent welding cannot be influenced, the working efficiency is high, and the defective rate of finished products can be effectively reduced.
As shown in fig. 3, the infrared distance measuring sensor 21 detects a distance from the emitting end to an object blocking infrared rays and compares the distance with a preset distance. And when the detected distance is less than the preset distance, sending an electric signal to the infrared detection module 2 and outputting a distance value with a number. The analog analysis module 4 receives the distance value output by the infrared detection module 2. The analog analysis module 4 stores a digital analog image for simulating the outline of the workpiece, and the analog analysis module 4 rotates the digital analog image according to the received distance value and highlights the outline of the highlighted boundary. The staff can know the work piece skew direction and roughly the angle fast through observing digital simulation image, the staff of being convenient for adjusts the work piece. The analog analysis module 4 calculates a rotation angle and displays the rotation angle when the digital analog image is rotated. The staff can judge the angle that needs to rotate the work piece through the turned angle who observes simulation analysis module 4 and show, can effectively improve skilled staff's work efficiency.
Example two: a hot-press welding method comprises the following specific steps:
step one, two infrared distance measuring sensors 21 are arranged at positions, close to a feeding conveying belt 11, of the hot-press welding equipment 1, so that infrared light emitted by the two infrared distance measuring sensors 21 is parallel to each other, and the distance between the infrared light and the infrared distance measuring sensors is equal to the width of a workpiece.
And step two, the worker places the workpiece on the feeding conveyor belt 11, and two infrared lights pass through the two sides of the workpiece as far as possible.
And step three, if the position of the workpiece is incorrect, two alarms 31 on the hot-press welding equipment 1 give an alarm according to which side the workpiece deflects. The worker adjusts the position of the workpiece. If the position of the workpiece is correct, the worker starts the feeding conveying belt 11 and the hot-press welding equipment 1 to weld the workpiece. The workpiece can be placed easily by workers, the placing position is accurate, subsequent welding cannot be influenced, the working efficiency is high, and the defective rate of finished products can be effectively reduced.
And step four, after the infrared distance measuring sensor 21 detects the deflection angle of the workpiece, displaying a digital image of the outline of the workpiece on the hot-press welding equipment 1, and highlighting the part with the highlighted boundary. The hot press welding apparatus 1 displays the deflection angle of the workpiece. The staff can know the work piece skew direction and roughly the angle fast through observing digital simulation image, the staff of being convenient for adjusts the work piece. The staff can judge the angle that needs to rotate the work piece through the turned angle who observes simulation analysis module 4 and show, can effectively improve skilled staff's work efficiency.
And step five, fixing a pressing plate and high-temperature-resistant Teflon between the upper welding head 12 and the lower welding head 13.
The upper high-temperature-resistant Teflon 122 and the lower high-temperature-resistant Teflon 132 can enable welding points to be heated uniformly, reduce glue flowing probability, prevent glue from being accumulated on the welding head and reduce residual glue pollution.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (3)

1. A thermal compression bonding system, characterized by: the hot-press welding device comprises a hot-press welding device (1), a feeding port of the hot-press welding device (1) is connected with a feeding conveying belt (11), two infrared distance measuring sensors (21) are fixedly connected to positions, close to the feeding conveying belt (11), of the hot-press welding device (1), the two infrared transmitters are located on two sides of the feeding conveying belt (11), the directions of the two infrared distance measuring sensors (21) are arranged along the transmission direction of the feeding conveying belt (11), the distance between the two infrared distance measuring sensors (21) is equal to the width of a workpiece, the hot-press welding device (1) is connected with a control system, and the control system comprises an infrared detection module (2) and an alarm module (3);
the infrared detection module (2) is connected with the two infrared ranging sensors (21), when infrared rays emitted by the infrared ranging sensors (21) are blocked, an electric signal is transmitted to the infrared detection module (2), and the infrared detection module (2) sends the electric signal to the alarm module (3);
the alarm module (3) sends out an alarm after receiving the electric signal; the infrared detection module (2) marks numbers on the two infrared ranging sensors (21), and when infrared rays emitted by the infrared ranging sensors (21) are blocked, numbered electric signals are transmitted to the infrared detection module (2); the alarm module (3) comprises two groups of alarms (31), each group of alarms (31) corresponds to one serial number, and the alarms (31) with the same serial number are controlled to alarm when electric signals with the serial numbers are received;
the infrared distance measuring sensor (21) detects the distance from the transmitting end to an object blocking infrared rays, compares the distance with a preset distance, and sends an electric signal to the infrared detection module (2) and outputs a distance value with a number when the detected distance is smaller than the preset distance;
the device is characterized by further comprising an analog analysis module (4), wherein the analog analysis module (4) receives the distance value output by the infrared detection module (2), a digital analog image for simulating the outline of the workpiece is stored in the analog analysis module (4), and the analog analysis module (4) rotates the digital analog image according to the received distance value and highlights the outline of the protruding boundary;
the analog analysis module (4) calculates the rotation angle and displays the rotation angle when the digital analog image rotates.
2. A thermocompression bonding system as recited in claim 1, wherein: the hot-pressing welding equipment (1) comprises an upper welding head (12) and a lower welding head (13), wherein an upper pressing plate (121) is fixedly connected onto the upper welding head (12), a lower pressing plate (131) is fixedly connected onto the lower welding head (13), the upper pressing plate (121) is fixedly connected onto one side of the lower pressing plate (131), and the lower pressing plate (131) is fixedly connected onto one side of the upper pressing plate (131) and is provided with a lower high-temperature-resistant Teflon (132).
3. A thermocompression bonding method of a thermocompression bonding system according to claim 1 or 2, comprising the steps of:
firstly, two infrared distance measuring sensors (21) are arranged at the position, close to a feeding conveying belt (11), of a hot-press welding device (1), so that infrared light emitted by the two infrared distance measuring sensors (21) is parallel and the distance between the infrared light and the infrared distance measuring sensors is equal to the width of a workpiece;
secondly, the worker places the workpiece on a feeding conveyor belt (11) and enables two infrared lights to pass along two sides of the workpiece as far as possible;
thirdly, if the position of the workpiece is incorrect, an alarm (31) on the hot-press welding equipment (1) gives an alarm, and a worker adjusts the position of the workpiece; if the position of the workpiece is correct, the worker starts the feeding conveying belt (11) and the hot-press welding equipment (1) to weld the workpiece;
the third step also comprises: if the position of the workpiece is incorrect, two alarms (31) on the hot-press welding equipment (1) send out an alarm according to which side the workpiece deflects;
further comprising the steps of:
fourthly, after the infrared distance measuring sensor (21) detects the deflection angle of the workpiece, displaying a digital image of the outline of the workpiece on the hot-press welding equipment (1), and highlighting the part highlighting the boundary;
the fourth step also comprises:
fourthly, displaying the deflection angle of the workpiece on the hot-press welding equipment (1).
CN202010187933.1A 2020-03-17 2020-03-17 Hot-press welding system and welding method Active CN111299799B (en)

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