CN107378170B

CN107378170B - Multifunctional intelligent welding machine with cover plate LCM

Info

Publication number: CN107378170B
Application number: CN201710780096.1A
Authority: CN
Inventors: 胡正华
Original assignee: Shandong Norite Intelligent Technology Co ltd
Current assignee: Shandong Norite Intelligent Technology Co ltd
Priority date: 2017-09-01
Filing date: 2017-09-01
Publication date: 2022-12-20
Anticipated expiration: 2037-09-01
Also published as: CN107378170A

Abstract

The invention belongs to the field of FPC welding, and provides a multifunctional intelligent welding machine with a cover plate LCM. Wherein, the concrete embodiment is: before welding, the overturning alignment mechanism overturns the first carrying platform of the overturning alignment mechanism to connect and load the LCM with the cover plate, which is transferred by the feeding manipulator of the scheduling mechanism, so that a bonding pad of a main FPC of the LCM is exposed out of the cover plate, and after the bonding pad of the main FPC and the secondary FPC are aligned, the bonding pad of the main FPC and the secondary FPC are conveyed to a welding station for welding. After welding, on one hand, the self-decontamination welding mechanism automatically cleans the welding head and removes stains left by the welding head after the welding head is cleaned; on the other hand, the detection and material distribution mechanism detects the welding quality of the welding pads so as to separate out good products and defective products to be taken away by a material discharging manipulator in the dispatching mechanism.

Description

Multifunctional intelligent welding machine with cover plate LCM

Technical Field

The invention belongs to the field of FPC welding feeding, and particularly relates to a multifunctional intelligent welding machine with a cover plate LCM.

Background

With the development of integrated circuit technology, the user demand of electronic products is continuously developing towards miniaturization and lightness. Among them, a PCB (Printed Circuit Board) and an FPC (Flexible Printed Circuit Board) are important bases for miniaturization and lightness development of electronic products. Meanwhile, the FPC has the advantages of flexibility in bending, thinness, lightness, high precision, multiple installation of circuit layers and the like, and is more advantageous than a PCB in some electronic products needing flexible connection. For example, an LCM (Liquid Crystal Module) is preferably used as the FPC.

The LCM is required to emit light, the backlight module is required to provide backlight, the FPC of the backlight module is used as a secondary FPC of the LCM, and the LCM can normally work after the FPC is electrically connected with a main FPC of the LCM.

The secondary FPC of the LCM is electrically connected with the primary FPC of the LCM generally by soldering. And welding the bonding pad of the main FPC of the LCM with the secondary FPC of the LCM to ensure that the LCM normally works.

In practice, there is an LCM with a cover plate, which includes a cover plate and an LCM, and before soldering a pad of a main FPC of the LCM with a sub FPC of the LCM, the pad of the main FPC is covered and shielded by the cover plate. For a long time, the LCM with the cover plate is lack of effective welding equipment, and the welding is mainly carried out manually. The FPC with the cover plate LCM is welded manually, namely a series of necessary processes of material taking, alignment, welding, cleaning, detection and the like for completing the welding of a product are carried out separately, however, the necessary processes are carried out separately, so that the production efficiency of the product is reduced, the links are more, errors are easy to occur, and the large-scale production of the product is not facilitated. In addition, manual welding relies on the labour seriously, and not only intelligent degree is low, has harmful smog etc. moreover and is unfavorable for the healthy hidden danger of production staff.

In conclusion, the existing FPC welding technology with the cover plate LCM has the technical problems of low efficiency, high possibility of error and inconvenience for the health of production staff.

Disclosure of Invention

The invention aims to provide a multifunctional intelligent welding machine with a cover plate LCM, and aims to solve the technical problems that the existing FPC welding technology with the cover plate LCM is low in efficiency, easy to make mistakes and not beneficial to the health of production staff.

In order to achieve the above object, in a first implementation scheme, the invention provides a multifunctional intelligent welding machine with a cover plate LCM, which is arranged on an operation platform and used for welding the LCM with the cover plate; the upper side and the lower side of one end with the cover plate LCM are respectively provided with a main FPC (flexible printed circuit) and a secondary FPC (flexible printed circuit); the multifunctional intelligent welding machine with the cover plate LCM is characterized by comprising at least one multifunctional welding system and a scheduling mechanism; the multifunctional welding system comprises:

the X-axis moving module is arranged on the table top of the operating table;

the overturning and indexing mechanism is connected with the X-axis moving module in a sliding manner, is used for overturning the LCM with the cover plate loaded on the first loading platform of the X-axis moving module before welding so as to enable the bonding pad of the main FPC to be exposed from the cover plate, and is used for aligning the bonding pad of the main FPC with the secondary FPC and then delivering the alignment to a welding station for welding; the turnover aligning mechanism resets after welding;

the self-decontamination welding mechanism is used for suspending the first bracket of the operating platform, cleaning the welding head after welding and removing stains left by the welding head after the welding head is cleaned;

the detection material distribution mechanism is arranged at the discharge end of the operating platform and used for detecting the welding quality of the welded bonding pad so as to separate a good product and a defective product;

the dispatching mechanism comprises a feeding manipulator and a discharging manipulator; the feeding mechanical arm is used for conveying the LCM with the cover plate to the first carrying platform, so that the cover plate faces downwards to be fixed; the discharging manipulator is used for taking away the good products and the defective products.

In combination with the first implementable scheme, in a second implementable scheme, the multifunctional welding system further comprises a cleaning auxiliary turnover mechanism, and the scheduling mechanism further comprises a transfer manipulator; the cleaning auxiliary turnover mechanism is connected with the X-axis moving module in a sliding manner; and the transfer manipulator is used for taking away the welded LCM with the cover plate and conveying the LCM to a second loading platform of the auxiliary cleaning turnover mechanism after the turnover alignment mechanism is reset, and the auxiliary cleaning turnover mechanism is used for loading and turning over so as to enable the welded bonding pad to be exposed from the cover plate and conveyed to a cleaning station.

In combination with the first implementation scheme, in a third implementation scheme, the multifunctional welding system further comprises a self-changing cloth pad cleaning mechanism, wherein the self-changing cloth pad cleaning mechanism is suspended on a third support of the operating platform and used for automatically changing dirty cloth and updating clean cloth for subsequent cleaning after cleaning stains on the welded pads with dust-free cloth; the detection and distribution mechanism is also used for detecting the cleaning quality of the cleaned bonding pad so as to distribute good products and defective products.

With reference to the first implementation scheme, in a fourth implementation scheme, the multifunctional intelligent welding machine with the cover plate LCM further includes a feeding mechanism, and the feeding mechanism is disposed at a feeding end of the operating platform and is used for turning over the LCM with the cover plate to enable the cover plate to face downward and then sending the cover plate to the feeding alignment platform for pre-alignment before feeding.

With reference to the first implementable scheme, in a fifth implementable scheme, the overturning alignment mechanism comprises an overturning correction clamping mechanism and a CCD alignment detection mechanism; the CCD alignment detection mechanism is arranged on the first bracket of the operating platform and is positioned above the overturning correction clamping mechanism; the overturning, correcting and clamping mechanism comprises a first overturning mechanism, a first pressing mechanism and a correcting and clamping mechanism;

the first turnover mechanism turns over the first carrying platform, and blows air to turn over the main FPC to an alignment station of an FPC adsorption plate of the welding platform, so that a bonding pad of the main FPC is exposed from the cover plate; the first pressing mechanism moves to the position above the alignment station, and the main FPC is pressed downwards; after the correction clamping mechanism clamps the bonding pads of the secondary FPC and the main FPC for alignment, the CCD alignment detection mechanism acquires alignment information and compares the alignment information with preset standard alignment parameters to output alignment correction information; and the correction clamping mechanism performs alignment correction on the bonding pad of the main FPC and the secondary FPC according to the alignment correction information.

With reference to the first implementable aspect, in a sixth implementable aspect, the self-decontaminating welding mechanism includes a welding mechanism, a tin supply mechanism, and a triple cleaning mechanism; the triple cleaning mechanism comprises a wind power cleaning mechanism, an erasing mechanism and a scraper component; the welding mechanism welds the secondary FPC positioned at the welding station with a welding pad of the main FPC; the tin supply mechanism is arranged above the welding mechanism and integrated with the welding mechanism, and tin wires provided by the tin supply mechanism penetrate out of a welding head of the welding mechanism to automatically supply tin for the welding mechanism; the wind power cleaning mechanism and the erasing mechanism sequentially perform wind power cleaning and erasing on the welding head after welding is completed, and the scraper component scrapes tin slag and rosin at the welding position of the welding disc after erasing.

With reference to the third implementable aspect, in a seventh implementable aspect, the self-changing pad cleaning mechanism suspends the third support of the operating platform through a setup board, and the setup board is provided with a cloth feeding assembly, an immersion mechanism, a wiping mechanism, and a cloth changing mechanism; the cloth feeding assembly sequentially conveys the dust-free cloth to bypass the wiping mechanism and the cloth changing mechanism; the immersion mechanism soaks dust-free cloth wound by a wiping head of the wiping mechanism;

when the welding disc contacts the wiping head at the cleaning station and is wiped back and forth along the X axial direction within a second preset distance range by second preset force, the wiping mechanism is wiped back and forth within a first preset distance range by first preset force along the Y axial direction;

after the wiping is finished, the wiping head leaves the welding disc, and the cloth changing mechanism changes the used dust-free cloth.

With reference to the fourth implementable scheme, in an eighth implementable scheme, the operating platform comprises a main setting platform and a production line platform, the feeding mechanism comprises a feeding turnover mechanism, a feeding manipulator and a CCD feeding alignment mechanism, the feeding manipulator and the feeding turnover mechanism are respectively arranged on the production line platform, and the CCD feeding alignment mechanism is arranged on the feeding alignment platform;

the feeding turnover mechanism is used for turning the LCM with the cover plate to enable the cover plate to face downwards, the feeding manipulator takes and conveys the LCM with the cover plate facing downwards to the upper portion of the feeding alignment platform, and the CCD feeding alignment mechanism is used for controlling the feeding manipulator to correct and align the LCM with the cover plate and convey the LCM to the feeding station platform after acquiring alignment information of the LCM with the cover plate above the feeding alignment platform and comparing the alignment information with preset standard position information.

With reference to the eighth implementable aspect, in a ninth implementable aspect, the feeding turnover mechanism is disposed on the assembly line table through a feeding support plate, and includes a material taking and placing mechanism, a third turnover mechanism, and a gravity hammer mechanism respectively disposed on the feeding support plate; the material taking and placing mechanism sucks the LCM with the cover plate of the material taking station on the assembly line table, and places the LCM onto a suction nozzle of a third turnover mechanism for adsorption; the third turnover mechanism rotates through a rotating arm of the third turnover mechanism so that the cover plate with the cover plate LCM is adsorbed by the third turnover mechanism and faces downwards; the gravity hammer mechanism limits the LCM with the cover plate provided by the assembly line at the material taking station so as to be sucked by the material taking and placing mechanism.

With reference to any one of the first to ninth implementation manners, in a tenth implementation manner, the multifunctional intelligent welding machine with the cover plate LCM comprises three multifunctional welding systems separately arranged on the operation platform.

The multifunctional intelligent welding machine with the cover plate LCM, which is obtained by the scheme, is efficient, stable and fully automatic, does not need manual participation, and is beneficial to the health of production staff. The concrete embodiment is as follows:

before welding, the overturning alignment mechanism overturns the first carrying platform of the overturning alignment mechanism to carry the LCM with the cover plate, which is transferred by the feeding manipulator of the scheduling mechanism, so that the bonding pad of the main FPC of the LCM is exposed out of the cover plate, and the bonding pad of the main FPC and the secondary FPC are aligned and then transferred to a welding station for welding.

After welding, on one hand, the self-decontamination welding mechanism automatically cleans the welding head and removes stains left by the welding head after the welding head is cleaned; on the other hand, the detection and material distribution mechanism detects the welding quality of the welding pads so as to separate out good products and defective products to be taken away by a material discharging manipulator in the dispatching mechanism.

Drawings

FIG. 1 is a schematic structural diagram of a multifunctional intelligent welding machine with a cover plate LCM provided by the embodiment of the invention;

FIG. 2 is a schematic structural view of the flip alignment mechanism of FIG. 1;

FIG. 3 is a schematic structural view of the flip alignment mechanism of FIG. 1;

FIG. 4 is a schematic view of a portion of the flip alignment mechanism of FIG. 1;

FIG. 5 is a schematic structural diagram of the LCM with a cover plate in FIG. 1;

FIG. 6 is a schematic structural view of the self-decontaminating welding mechanism of FIG. 1;

FIG. 7 is a schematic view of a portion of the self-decontaminating welding mechanism of FIG. 6;

FIG. 8 is a schematic diagram of the self-changing pad cleaning mechanism of FIG. 1;

fig. 9 is a schematic view of the structure of the feeding mechanism in fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to solve the technical problems of low efficiency, easy error and unfavorable health of production staff in the existing FPC welding technology with a cover plate LCM. The embodiment of the invention provides a multifunctional intelligent welding machine with a cover plate LCM, which is shown in the figures 1-7 and described in detail as follows.

The first embodiment is as follows:

in the first embodiment, a multifunctional intelligent welding machine with a cover plate LCM is provided. The welding machine is arranged on the operation table and used for welding the LCM with the cover plate. The welder includes at least one multifunctional welding system d and a scheduling mechanism (c, g).

In a first aspect:

the operation table comprises a main setting table b and a production line table a. The main setting table b is a platform for setting the main mechanism of the welding machine. The assembly line table a is mainly used for feeding and discharging.

In addition, referring mainly to fig. 5, the upper and lower sides of one end of the LCM1 with a cover are respectively provided with a main FPC11 and a sub FPC. The size of the main FPC11 is much larger than that of the sub FPC 110. The gold fingers on the pads of the main FPC11 and the gold fingers on the pads of the sub FPC110 are actual soldering sites. Before soldering, the main FPC11 pad cover is covered and shielded by the cover plate 13 due to the contact plate 13, the sub FPC110 is connected to the main FPC11, and the pad of the sub FPC110 is also covered and shielded by the cover plate 13. Wherein, the glass surface 10 with the cover plate LCM1 and the main FPC11 are in the same plane.

In a second aspect:

referring mainly to fig. 1, the multifunctional welding system d includes an X-axis moving module d0, an overturning alignment mechanism d1, a self-decontamination welding mechanism d2, and a detection distribution mechanism d3. The multifunctional welding system d may be disposed on the main setting table b. In order to improve the efficiency of the welding process, a plurality of multifunctional welding systems d may be provided on the main installation table b, and the plurality of multifunctional welding systems d may be operated at their respective stations. Preferably, three multifunctional welding systems d may be provided.

First, the X-axis moving module d0 may be disposed on the top of the operation table, specifically, the main disposing table b. The X-axis moving module d0 functions to move the mechanism provided on the guide rail thereof. The power mechanism in the X-axis moving module d0 may preferably be a high-speed linear motor.

Referring mainly to fig. 1, 2, and 3, the flip-over alignment mechanism d1 is slidably connected to the X-axis moving module d0, and is configured to flip over the tape cover LCM1 mounted on the first stage 6 before soldering so as to expose the pads of the main FPC11 from the cover 13, align the pads of the main FPC11 with the sub FPC110, and send the aligned pads to a soldering station for soldering. After welding, the overturning alignment mechanism d1 resets after welding. Wherein, welding station sets up on welded platform.

Specifically, when the first stage 6 is connected to the cover LCM1, the cover 13 may be fixed by a physical contact fixing device such as a jig, so that the LCM is fixed, or the cover 13 may be fixed by suction by a gas suction device. Since the LCM1 with the cover plate is in a sheet shape and is prevented from being damaged by scratches or the like caused by the physical contact type fixing LCM, it is preferable that the gas adsorption device adsorb the fixing cover plate 13 to fix the LCM. For example, the cover plate 13 may be sucked through a plurality of cover plate suction holes provided on the object mounting surface of the first stage 6.

After the cover-equipped LCM1 is mounted on the first stage 6, the first stage 6 is tilted from the horizontal position before being tilted (see fig. 2) to the vertical position (see fig. 3). At the same time, the main FPC11 is flipped from a state parallel to the stage surface of the first stage 6 to a state perpendicular to the stage surface of the first stage 6 so that the pads of the main FPC11 are exposed from the cover plate 13. After the bonding pad of the main FPC11 is exposed from the cover plate 13, the overturning and aligning mechanism d1 aligns the bonding pad of the main FPC11 with the secondary FPC110 and then sends the alignment pad to a welding station for welding, and the welding station resets after the welding is completed.

Specifically, the inversion alignment mechanism d1 includes an inversion correction clamping mechanism d10 and a CCD alignment detection mechanism d12.

The CCD alignment detection mechanism d12 is arranged on the first support y of the operating platform and is positioned above the overturning correction clamping mechanism d 10. After the alignment of the pads of the secondary FPC110 and the main FPC11, the CCD alignment detection mechanism d12 collects alignment information and compares the alignment information with a preset standard alignment parameter to output alignment correction information.

The overturning and correcting clamping mechanism d10 comprises a first overturning mechanism 7, a first pressing mechanism 2 and a correcting clamping mechanism 9.

First, the first turnover mechanism 7 turns over the first carrier 6, and blows air to turn over the main FPC11 to the alignment station of the FPC adsorption plate 50 of the soldering station 5, so that the pad of the main FPC11 is exposed from the cover plate 13. The first turnover mechanism 7 can turn over the first carrier 6 to transfer the LCM to the position above the alignment station of the FPC adsorption plate 50, and the first turnover mechanism 7 blows air to turn over the main FPC11 from a state parallel to the table top of the first carrier 6 to a state perpendicular to the table top of the first carrier 6 and adsorb the main FPC11 to the suction holes on the FPC adsorption plate 50, so that the pads of the main FPC11 are exposed from the cover plate 13. In the first turnover mechanism 7, a gas bar may be arranged at one end of the first carrier 6 on the same side as the end where the main FPC11 is arranged to blow gas to turn over the main FPC11 to expose the pads.

Secondly, the first hold-down mechanism 2 moves to the upper side of the alignment station, and presses down the main FPC11. The first hold-down mechanism 2 can prevent the main FPC11 from rebounding due to the fact that the FPC adsorption plate 50 fails to have adsorption capacity or the adsorption capacity is weakened.

Specifically, the first pressing mechanism 2 may include a pressing arm 22 and a lifting cylinder 20, a pressing piece 21 for pressing the main FPC11 is disposed at a pressing end of the pressing arm 22, and the lifting cylinder 20 is connected to and drives the pressing arm 22 to move up and down.

Thirdly, the alignment fixture 9 aligns the pads of the main FPC11 with the sub FPC110 based on the alignment correction information. The correcting and clamping mechanism 9 is connected with the welding platform 5 through a Y-axis screw rod (see below), and an FPC adsorption plate 50 capable of adsorbing and fixing the main FPC11 is arranged on the welding platform 5. The correcting and clamping mechanism 9, the first pressing mechanism 2 and the CCD alignment detection mechanism d12 are matched together to complete alignment before welding after the LCM1 with the cover plate is turned over. The alignment fixture 9 aligns and corrects the pads of the main FPC11 and the sub FPC110 according to the alignment correction information transmitted from the CCD alignment detection mechanism d12.

Specifically, referring mainly to fig. 4, the correcting and clamping mechanism 9 includes an upper picking assembly, a lower clamping assembly and a Y-axis module, wherein the upper picking assembly is arranged below the lower clamping assembly; the upper picking component and the lower clamping component sequentially and respectively pick and press down to clamp the secondary FPC110 together, so that the golden finger of the secondary FPC110 moves to an alignment station to be in alignment contact with the golden finger of the main FPC11 under the common control of the X axial module d0 and the Y axial module.

Wherein, the upward picking component comprises an upward picking finger 93, a Z-axis screw rod 90, a Z-axis lifting control synchronizing wheel 95 and a Z-axis lifting control servo motor 92. The upper picking finger 93 is connected with a Z-axis lifting control synchronizing wheel 95 through a Z-axis screw rod 90, and the Z-axis lifting control synchronizing wheel 95 rotates under the control of a Z-axis lifting control servo motor 92.

The lower clamping assembly comprises a lower pressing finger 91 and a lifting control cylinder (not shown), wherein the lower pressing finger 91 is connected with the lifting control cylinder (not shown) and is controlled by the lifting control cylinder (not shown) to complete lifting.

The upper pick-up finger 93 and the lower press-down finger 91 are in contact with the upper and lower surfaces of the sub FPC110, respectively. In view of the fact that the FPC is a flexible material, in order to avoid damage such as indentation of the FPC caused by the raising and lowering of the raising finger 93 and the lowering finger 91, it is preferable to provide the portions of the raising finger 93 and the lowering finger 91, which are in contact with the FPC, with a flexible material.

The Y-axis module includes a Y-axis lead screw (not shown), a Y-axis movement control synchronizing wheel 94, and a Y-axis movement control servo motor 96. A Y-axis lead (not shown) is connected to the Y-axis movement control synchronizing wheel 94. The upper picking assembly and the lower clamping assembly are arranged on the Y-axis module as a whole, and the Y-axis movement control servo motor 96 controls the Y-axis movement control synchronizing wheel 94 to rotate so as to drive the upper picking assembly and the lower clamping assembly to move in the Y-axis direction through a Y-axis lead screw (not shown).

In addition, referring mainly to fig. 1, 6, and 7, the first support y of the operation table is suspended from the desmear welding mechanism d2 for cleaning the welding head d222 after welding and for removing dirt left by the welding head d222 itself after the cleaning is completed. After the soldering, it is necessary to remove contaminants such as solder dross left on the soldered joint d222.

Specifically, the self-desmear soldering mechanism d2 includes a soldering mechanism d22, a tin supply mechanism d21, and a triple cleaning mechanism (d 23, d 25). Wherein, the tin supply mechanism d21 is arranged on one side surface of the welding lifting module d26 above the welding mechanism d22 and integrated with the welding mechanism d22, and the other side surface of the welding lifting module d26 is connected with the welding horizontal moving module d24 in a sliding way through a connecting block.

Further, the soldering mechanism d22 includes a soldering device d220, the soldering device d220 is connected to the soldering head d222, and the soldering device d220 acts to melt the solder wire at the soldering head d222. The welding mechanism d22 is used for welding the FPC according to dragging of the welding platform 5 to the cover plate LCM1 with the welding station.

Further, the tin feeding mechanism d21 includes a tin wire roll d210 and a tin wire feeding mechanism d212. The solder wire roll d210 is disposed above the solder wire supply mechanism d212 and is wound with the fixed end of the solder wire, and the soldering end of the solder wire penetrates out to the soldering head d222 through the solder wire supply mechanism d212. The tin wire provided by the tin supply mechanism d21 penetrates out of the welding head d222 of the welding mechanism d22 to automatically supply tin for the welding mechanism d 22.

It should be noted that the tin supply mechanism d21 is integrally arranged with the welding mechanism d22 above the welding mechanism d22, so that the structure of the self-decontamination welding mechanism d2 is simpler, the cost saving and the miniaturization and integration of the machine are facilitated, and the complexity of the control program is reduced.

In a modified embodiment, the self-desmear welding mechanism d2 further comprises a smoke adsorbing mechanism d27. The fume suction mechanism d27 is provided above the welding head d222, and is used for removing fume generated during welding.

It should be noted that harmful gas such as smoke is generated during welding, and the smoke generated during welding can be removed by the smoke absorbing mechanism d27.

Specifically, the triple cleaning mechanism (d 23, d 25) includes a wind cleaning mechanism d231, a wiping mechanism d230, and a blade assembly d25. After the welding is completed, welding head d222 is moved to wind cleaning mechanism d231 and wiping mechanism d230 in sequence to receive double cleaning. The wind-force cleaning mechanism d231 comprises a wind-force cleaning chamber d2310, and the wiping mechanism d230 can be a high-temperature sponge d2300 driven by a wiping power piece to rotate.

The air cleaning chamber d2310 of the air cleaning mechanism d231 blows strong air to remove dirt such as solder dross left on the solder head d222. However, since the wind cleaning mechanism d231 is not physically in contact with the bonding head d222 and there is a possibility that a cleaning residue may exist, it is necessary to provide a solder residue cleaning mechanism physically in contact with the bonding head d222 to ensure that the bonding head d222 does not have any contamination such as solder residue. Since the high temperature sponge d2300 has a good cleaning effect and dirt such as dross remaining thereon is easily scraped off, the high temperature sponge d2300 is preferably used as a member where the wiping means d230 and the bonding head d222 come into physical contact with each other.

It should be noted that the wind-powered clean room d2310 is provided with an air inlet and an air outlet.

Specifically, the scraper assembly d25 includes a lifting member d252 and a scraper d251 fixedly connected to a bottom end of the lifting member d 252. After the scraper d251 descends, tin slag and rosin at the welding position of the welding pad can be removed.

After the double cleaning is completed, dirt such as tin dross to be removed is left on the high-temperature sponge d2300, and therefore, the scraper assembly d25 is provided to remove the dirt such as tin dross on the high-temperature sponge d2300.

In addition, referring to fig. 1, a detection material distribution mechanism d3 is arranged at the discharge end of the operation table, and the detection material distribution mechanism d3 is used for detecting the welding quality of the welded bonding pad so as to separate good products and defective products. Wherein, the detecting and distributing mechanism d3 can be arranged on the third bracket n of the operation table.

It should be noted that the detecting and distributing mechanism d3 may specifically adopt an AOI detecting mechanism, and compare the mark points on the welded bonding pad with preset parameters to determine the welding quality of the bonding pad. The welding quality can be judged by judging whether the missing welding and the insufficient welding exist or not. Since the AOI detection technique is already known in the art, it will not be described herein.

In a third aspect:

referring to fig. 1, the dispatching mechanism (c, g) includes a feeding robot c and a discharging robot g. The feeding robot c is used to send the cover-equipped plate LCM1 to the first stage 6 and fix the cover plate 13 facing downward. The discharging manipulator g is used for taking away the good products and the defective products.

On the basis of the first embodiment, the invention further provides a second embodiment, a third embodiment and a fourth embodiment respectively.

The second embodiment:

referring to fig. 1, in the second embodiment, the multifunctional welding system d further includes a cleaning auxiliary turnover mechanism e, and the dispatching mechanism (c, g) further includes a transfer robot w. The cleaning auxiliary turnover mechanism e is connected with the X-axis moving module d0 in a sliding manner; the transfer manipulator w is used for taking away the welded second carrying platform with the cover plate LCM1 and sending the welded second carrying platform to the cleaning auxiliary turnover mechanism e after the turnover alignment mechanism d1 is reset, and the cleaning auxiliary turnover mechanism e is loaded and turned over so that the welded welding pad is exposed from the cover plate 13 and then sent to a cleaning station. Wherein, the transfer manipulator w can be arranged on the second support r on the operation table.

After the bonding of the bonding pad, cleaning is usually required to remove dirt such as rosin and tin dross on the bonding pad. The cleaning auxiliary inverting mechanism e is substantially identical in structure and operation to the above-described inversion correction jig mechanism 9d10, and will not be described in a repeated manner.

Example three:

referring to fig. 1 and 8, in the third embodiment, the multifunctional welding system d further includes a self-changing pad cleaning mechanism, where the self-changing pad cleaning mechanism is suspended from a third support of the operating table, and is used to automatically change dirty cloth and update clean cloth for subsequent cleaning after cleaning stains on the welded pads with dust-free cloth; the detection and distribution mechanism d3 is also used for detecting the cleaning quality of the cleaned bonding pad so as to distribute good products and defective products.

The self-changing pad cleaning mechanism is suspended on a third support of the operating table through a setting plate, and can wipe back and forth at a cleaning station within a first preset distance range with first preset force along the Y-axis direction.

Specifically, the self-changing pad cleaning mechanism comprises a cloth feeding assembly, an immersion mechanism, a wiping mechanism and a cloth changing mechanism.

The cloth feeding assembly sequentially conveys the dust-free cloth to bypass the wiping mechanism and the cloth changing mechanism. The immersion mechanism wets the dust-free cloth wound around the wiping head f41 of the wiping mechanism.

When the bonding pad is conveyed to the cleaning station, the X-axis moving module d0 moves back and forth along the X-axis direction within a second preset distance range with a second preset force, so that the bonding pad is in contact with the wiping head f41 for wiping.

The wiping head f41 and the pad are wiped mutually at the same time, and after the wiping is finished, the wiping head f41 is separated from the pad so that the cloth replacing mechanism can pull out the used dust-free cloth for replacement.

It should be noted that, because of the flexible characteristic of the FPC, the force control is required when the pad of the main FPC11 is wiped to avoid the pad from being damaged by the excessive force, and therefore, the setting of the first preset force and the second preset force is subject to the pad which is not damaged by the FPC when wiping.

In addition, since the pad size of the main FPC11 is small, the wiping range that needs to be controlled during wiping cannot be excessively covered to avoid useless wiping, and therefore, both the first preset distance range and the second preset distance range are reasonable wiping distance ranges set according to the pad size of the main FPC11.

In a modified embodiment, a positioning sliding table (not shown) is further arranged on the setting plate of the cloth-changing pad cleaning mechanism and used for adjusting the wiping position of the wiping mechanism so as to wipe the pads at different welding positions.

Specifically, the cloth feeding assembly includes a cloth feeding tray f46, a plurality of guide wheels f45, and a gravity weight mechanism. The cloth feed table f46 is mounted on a setting plate f6 above the plurality of guide wheels f 45. The dust-free cloth f5 is led out from the discharge end of the cloth supply disc f46 and is in slidable winding connection with a plurality of guide wheels f45; the guide wheels f45 are respectively installed on a setting plate f6 above the cleaning station and are respectively connected with a gravity hammer mechanism and a wiping mechanism which are installed below the guide wheels through dust-free cloth f5. When the gravity hammer mechanism moves up to a preset position, the wiping mechanism moves down to enable the wiping head f41 to contact the bonding pad. When the gravity hammer mechanism moves downwards to the preset position, the wiping mechanism moves upwards to enable the wiping head f41 to leave the welding pad, so that the cloth replacing mechanism pulls out and replaces the used part of the dust-free cloth f5. The gravity hammer mechanism comprises a sliding block guide rail pair f44 fixedly connected with a setting plate, an installation plate f43 and a floating guide wheel f42, wherein the floating guide wheel f42 is fixedly connected with the installation plate f43, and the installation plate f43 is connected with the sliding block guide rail pair f44 in a vertically movable manner; the dust-free cloth f5 is wound on the bottom of the floating guide wheel 42 and drives the floating guide wheel f42 to move upwards to a preset position.

It should be noted that, when the dust-free cloth f5 is wound around the bottom of the floating guide wheel f42 and drives the floating guide wheel f42 to move up to the preset position, the floating guide wheel f42 may be positioned by a positioning cylinder (not shown) to fix the gravity hammer mechanism.

It should be noted that the supply cloth disk f46 can adjust the supply speed of the dust-free cloth f5 under the control of the governor f 1.

Further, the wiping mechanism includes a lifting power member f40 and a wiping head f41 mounted on the setting plate f 6. The lifting power member f40 lifts the wiping head f41 to contact the pad or to move away from the pad.

Specifically, the cloth changing mechanism comprises a pressing cylinder f20, a pinch roller f21 and a driving wheel f22 which are respectively arranged on a setting plate f 6; the pinch roller f21 and the driving wheel f22 are respectively connected with the dust-free cloth f5 in a winding way; the lower end of the pressing cylinder f20 is connected with a pinch roller f21, so that the pinch roller f21 presses the dust-free cloth f5.

It should be noted that, while the winding power member f20 drives the winding wheel f21 to rotate, the driven wheel f22 rotates together, so as to complete the replacement of the used dust-free cloth f5, and the clean dust-free cloth f5 is replaced to the bottom end of the wiping head f41.

Wherein the immersion mechanism delivers cleaning liquid from the liquid tank f47 through a conduit into the liquid inlet 410 of the wiping head f41, and the cleaning liquid flows out of the liquid outlet of the wiping head f41 to wet the dust-free cloth f5.

In a modified embodiment, the self-changing pad cleaning mechanism further comprises a waste recycling machine f3; the waste collector f3 is provided on one side of the cloth changing mechanism and collects the used part of the dust-free cloth f5 after the wiping is finished.

Example four:

referring to fig. 1 and 9, in the fourth embodiment, the multifunctional intelligent welding machine with the cover plate LCM further includes a feeding mechanism h, the feeding mechanism h is disposed at a feeding end of the operating platform and used for turning over the cover plate LCM1 through a feeding turning mechanism h2 to enable the cover plate 13 to face downwards, and then the turned cover plate LCM1 with the cover plate is conveyed to a feeding alignment platform h3 through a feeding manipulator h0 to be aligned in advance by the CCD feeding alignment mechanism h1 before feeding.

Before the lid LCM1 with the lid plate is sent to the multifunctional welding system d to be subjected to the welding process, the lid plate 13 of the lid plate LCM1 sent in the production line is not placed downward for engineering reasons, and needs to be turned over before the feeding. Meanwhile, the cover plate-equipped LCM1 entering the multifunctional welding system d needs to enter according to a preset position, and therefore after overturning before feeding is completed, the cover plate-equipped LCM1 needs to be conveyed to the feeding alignment platform h3 for pre-alignment before feeding. The feeding mechanism h cooperates with the multifunctional welding system d to jointly execute the work of the welding machine, so that the intelligent degree of the welding machine is improved, and the work efficiency is improved.

Specifically, the feeding turnover mechanism h2 is arranged on the assembly line table a through a feeding support plate and comprises a material taking and placing mechanism h22, a third turnover mechanism h20 and a gravity hammer mechanism h21 which are respectively arranged on the feeding support plate; the material taking and placing mechanism h22 sucks the LCM1 with the cover plate of the material taking station on the assembly line platform a and places the LCM1 to a suction nozzle h204 of a third turnover mechanism h20 for adsorption; the third turnover mechanism h20 rotates through the rotating arm h202 thereof, so that the cover plate 13 attached with the cover plate LCM1 is downward; the gravity hammer mechanism h21 limits the LCM1 with the cover plate provided by the assembly line at a material taking station so as to be sucked by the material taking and placing mechanism h 22.

The embodiment of the invention provides a multifunctional intelligent welding machine with a cover plate LCM, which is efficient, stable and fully automatic, does not need manual participation and is beneficial to the health of production staff. Wherein, the concrete embodiment is: before soldering, the reverse alignment mechanism d1 reverses the cover-equipped LCM1 transferred by the feeding robot c of the scheduling mechanism (c, g) and placed on the first stage 6 so that the pads of the main FPC11 of the LCM are exposed from the cover 13, aligns the pads of the main FPC11 with the sub FPC110, and then transfers the aligned pads to a soldering station for soldering. After welding, on one hand, the self-decontamination welding mechanism d2 automatically cleans the welding head d222 and removes stains left by the welding head d222 after the cleaning is finished; on the other hand, the detection dividing mechanism d3 detects the welding quality of the bonding pads to divide good products and defective products to be taken away by a discharging manipulator g in the dispatching mechanisms (c, g).

The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims

1. A multifunctional intelligent welding machine with a cover plate LCM is arranged on an operation table and used for welding the LCM with the cover plate; the upper side and the lower side of one end of the LCM with the cover plate are respectively provided with a main FPC (flexible printed circuit) and a secondary FPC; the multifunctional intelligent welding machine with the LCM cover plate comprises at least one multifunctional welding system and a scheduling mechanism; the multifunctional welding system comprises: the X-axis moving module is arranged on the table top of the operating table; the overturning and aligning mechanism is connected with the X-axis moving module in a sliding mode, and is used for overturning the LCM with the cover plate loaded on the first loading platform of the overturning and aligning mechanism before welding so as to enable the bonding pad of the main FPC to be exposed from the cover plate, aligning the bonding pad of the main FPC with the secondary FPC and then delivering the bonding pad of the main FPC to a welding station for welding; the overturning alignment mechanism resets after welding; the self-decontamination welding mechanism is used for suspending the first bracket of the operating platform, cleaning the welding head after welding and removing stains left by the welding head after the welding head is cleaned; the detection and distribution mechanism is arranged at the discharge end of the operating platform and is used for detecting the welding quality of the welded bonding pad so as to distribute good products and defective products; the dispatching mechanism comprises a feeding manipulator and a discharging manipulator; the feeding mechanical arm is used for conveying the LCM with the cover plate to the first carrying platform, so that the cover plate faces downwards to be fixed; the discharging manipulator is used for taking the good products and the defective products away; the multifunctional welding system also comprises an auxiliary cleaning turnover mechanism, and the dispatching mechanism also comprises a transfer manipulator; the cleaning auxiliary turnover mechanism is connected with the X-axis moving module in a sliding manner; the transfer manipulator is used for taking away the welded LCM with the cover plate and sending the LCM to a second carrying platform of the auxiliary cleaning turnover mechanism after the turnover alignment mechanism is reset, and the auxiliary cleaning turnover mechanism is used for carrying and turning over so that the welded bonding pad is exposed from the cover plate and then sent to a cleaning station.

2. The multifunctional intelligent welding machine with the cover plate LCM according to claim 1, wherein the multifunctional welding system further comprises a self-changing pad cleaning mechanism, the self-changing pad cleaning mechanism hangs the third bracket of the operation platform, and is used for automatically changing dirty cloth and updating clean cloth for subsequent cleaning after cleaning stains on the welded pads with dust-free cloth; the detection and distribution mechanism is also used for detecting the cleaning quality of the cleaned bonding pad so as to distribute good products and defective products.

3. The multifunctional intelligent welding machine with the cover plate LCM as set forth in claim 1, further comprising a feeding mechanism disposed at the feeding end of the operation table for turning the LCM with the cover plate upside down and feeding the cover plate to the feeding alignment platform for pre-alignment before feeding.

4. The multifunctional intelligent welding machine with the cover plate LCM according to claim 1, wherein the overturning alignment mechanism comprises an overturning correction clamping mechanism and a CCD alignment detection mechanism; the CCD alignment detection mechanism is arranged on the first bracket of the operating platform and is positioned above the overturning correction clamping mechanism; the overturning correction clamping mechanism comprises a first overturning mechanism, a first pressing mechanism and a correction clamping mechanism; the first turnover mechanism turns over the first carrying platform, and blows air to turn over the main FPC to an alignment station of an FPC adsorption plate of the welding platform, so that a bonding pad of the main FPC is exposed from the cover plate; the first pressing mechanism moves to the position above the alignment station, and the main FPC is pressed downwards; after the correction clamping mechanism clamps the bonding pads of the secondary FPC and the main FPC for alignment, the CCD alignment detection mechanism acquires alignment information and compares the alignment information with preset standard alignment parameters to output alignment correction information; and the correction clamping mechanism performs alignment correction on the bonding pad of the main FPC and the secondary FPC according to the alignment correction information.

5. The multifunctional intelligent welding machine with the cover plate LCM according to claim 1, wherein the self-decontaminating welding mechanism comprises a welding mechanism, a tin supply mechanism and a triple cleaning mechanism; the triple cleaning mechanism comprises a wind power cleaning mechanism, an erasing mechanism and a scraper component; the welding mechanism welds the secondary FPC positioned at the welding station with a welding pad of the main FPC; the tin supply mechanism is arranged above the welding mechanism and integrated with the welding mechanism, and tin wires provided by the tin supply mechanism penetrate out of a welding head of the welding mechanism to automatically supply tin for the welding mechanism; the wind power cleaning mechanism and the erasing mechanism sequentially perform wind power cleaning and erasing on the welding head after welding is completed, and the scraper component scrapes tin slag and rosin at the welding position of the welding disc after erasing.

6. The multifunctional intelligent welding machine with the cover plate LCM according to claim 2, a third bracket for suspending the operation table through a setting plate, wherein the setting plate is provided with a cloth feeding component, a dipping mechanism, a wiping mechanism and a cloth changing mechanism; the cloth feeding assembly sequentially conveys the dust-free cloth to bypass the wiping mechanism and the cloth changing mechanism; the immersion mechanism soaks dust-free cloth wound by a wiping head of the wiping mechanism; when the welding disc contacts the wiping head at the cleaning station and wipes back and forth along the X axial direction within a second preset distance range with a second preset force, the wiping mechanism wipes back and forth along the Y axial direction within a first preset distance range with a first preset force; when the wiping is finished, the wiping head leaves the welding disc, and the cloth changing mechanism changes the used dust-free cloth.

7. The multifunctional intelligent welding machine with the cover plate LCM as defined in claim 3, wherein the operation platform comprises a main setting platform and a production line platform, the feeding mechanism comprises a feeding turnover mechanism, a feeding manipulator and a CCD feeding alignment mechanism, the feeding manipulator and the feeding turnover mechanism are respectively arranged on the production line platform, and the CCD feeding alignment mechanism is arranged on the feeding alignment platform; the feeding turnover mechanism is used for turning over the LCM with the cover plate to enable the cover plate to face downwards, the feeding manipulator takes and delivers the LCM with the cover plate facing downwards to the upper portion of the feeding alignment platform, and after the CCD feeding alignment mechanism collects alignment information of the LCM with the cover plate above the feeding alignment platform and compares the alignment information with preset standard position information, the feeding manipulator is controlled to correct and align the LCM with the cover plate and deliver the LCM to the feeding station platform.

8. The multifunctional intelligent welding machine with the cover plate LCM as defined in claim 7, wherein the feeding turnover mechanism is arranged on the assembly line table through a feeding support plate, and comprises a material taking and discharging mechanism, a third turnover mechanism and a gravity hammer mechanism which are respectively arranged on the feeding support plate; the material taking and placing mechanism sucks the LCM with the cover plate of the material taking station on the assembly line table, and places the LCM onto a suction nozzle of a third turnover mechanism for adsorption; the third turnover mechanism rotates through a rotating arm thereof so as to enable the cover plate with the cover plate LCM adsorbed by the third turnover mechanism to face downwards; the gravity hammer mechanism limits the LCM with the cover plate provided by the assembly line at the material taking station so as to be sucked by the material taking and placing mechanism.

9. The multifunctional intelligent welding machine with the cover plate LCM is characterized by comprising three multifunctional welding systems which are respectively arranged on the operating platform.