CN112453739B - New energy automobile high-voltage PTC product processing method and processing equipment - Google Patents
New energy automobile high-voltage PTC product processing method and processing equipment Download PDFInfo
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- CN112453739B CN112453739B CN202011259789.4A CN202011259789A CN112453739B CN 112453739 B CN112453739 B CN 112453739B CN 202011259789 A CN202011259789 A CN 202011259789A CN 112453739 B CN112453739 B CN 112453739B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/42—Printed circuits
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Abstract
The invention relates to the technical field of new energy automobile accessories, in particular to a processing method and processing equipment for a new energy automobile high-voltage PTC product. The high-voltage PTC product of the new energy automobile can be rapidly processed through a series of operations of PCBA board assembling and locking, heat dissipation aluminum part attaching, IGBT device and pressing sheet assembling, IGBT device welding, high-voltage wire harness welding, grounding wire screw locking, pin welding and welding spot detection in sequence, the production efficiency is improved, and the product quality consistency is high.
Description
Technical Field
The invention relates to the technical field of new energy automobile accessories, in particular to a processing method and processing equipment for a high-voltage PTC (positive temperature coefficient) product of a new energy automobile.
Background
The high-voltage PTC product of the new energy automobile consists of a bottom shell, a PCBA, an IGBT component, a screw, a pressing sheet and a high-voltage wire harness, and the purpose of adjusting the temperature in the new energy automobile is achieved by controlling different core body output powers through a controller. The traditional high-voltage PTC product generally adopts the whole processes of manual feeding, assembly, detection, packaging and the like, and has the advantages of low production efficiency, low productivity, high labor cost, high production cost and poor quality consistency.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a processing method and a processing device for a high-voltage PTC product of a new energy automobile are provided.
In order to solve the technical problems, the invention adopts a technical scheme that:
a processing method of a new energy automobile high-voltage PTC product comprises the following steps:
s1, presetting a bottom shell assembly and a PCBA (printed Circuit Board Assembly), and loading the PCBA into the bottom shell assembly and locking the PCBA on the bottom shell assembly; a heat dissipation aluminum piece is integrally formed on the bottom shell assembly;
s2, performing dispensing operation on one side face, far away from the bottom shell assembly, of the heat dissipation aluminum piece;
s3, presetting an IGBT device and a pressing sheet, placing the IGBT device on the side surface of the glued heat dissipation aluminum piece, abutting the pressing sheet on the IGBT device, and pressing the IGBT device on the heat dissipation aluminum piece through the pressing sheet;
s4, welding the electric connection pin of the IGBT device and the corresponding pad on the PCBA board;
s5, presetting a high-voltage wire harness, assembling the high-voltage wire harness on the bottom shell assembly and welding the high-voltage wire harness with the PCBA;
s6, presetting a grounding wire screw, and locking the grounding wire screw on the bottom shell assembly;
s7, presetting a contact pin on the bottom shell assembly, and welding the contact pin and the PCBA board;
and S8, detecting whether all welding spots meet the welding requirements, and if so, obtaining a qualified new energy automobile high-voltage PTC product.
The invention adopts another technical scheme that:
a new energy automobile high-voltage PTC product processing device comprises a PCBA board assembling module, a PCBA board locking module, an aluminum part dispensing module, an IGBT assembling module, a pressing sheet locking module, an IGBT welding module, a high-voltage wire harness welding module, a ground wire locking module, a low-voltage wire harness welding module and a welding spot AOI (automated optical inspection) module which are connected in sequence;
the PCBA board assembly module is used for loading the PCBA board into the bottom shell assembly; a heat dissipation aluminum piece is integrally formed on the bottom shell assembly;
the PCBA plate locking and attaching module is used for locking and attaching the PCBA plate to the bottom shell assembly;
the aluminum piece dispensing module is used for dispensing on one side surface of the heat dissipation aluminum piece away from the bottom shell assembly;
the IGBT assembly module is used for placing an IGBT device on the side surface of the heat dissipation aluminum piece subjected to adhesive dispensing;
the pressing sheet locking and attaching module is used for enabling the pressing sheet to abut against the IGBT device and enabling the IGBT device to be tightly pressed on the heat dissipation aluminum piece through the pressing sheet;
the IGBT welding module is used for welding the power connection pins of the IGBT device with the corresponding bonding pads on the PCBA board;
the high-voltage wire harness welding module is used for assembling a high-voltage wire harness on the bottom shell assembly and performing welding operation with the PCBA;
the ground wire locking and attaching module is used for locking and attaching a ground wire screw on the bottom shell assembly;
the low-voltage wire harness welding module is used for welding a contact pin preset on the bottom shell assembly with the PCBA board;
the welding spot AOI checking module is used for detecting whether all welding spots meet the welding requirements.
The invention has the beneficial effects that:
according to the processing method and the processing equipment for the new energy automobile high-voltage PTC product, a series of operations including PCBA board assembling and locking, heat dissipation aluminum piece attaching, IGBT device and pressing piece assembling, IGBT device welding, high-voltage wire harness welding, grounding wire screw locking, pin inserting welding and welding spot detection are sequentially performed, the qualified new energy automobile high-voltage PTC product can be rapidly processed, the production efficiency is improved, and the product quality consistency is high.
Drawings
Fig. 1 is a flow chart illustrating steps of a method for processing a high-voltage PTC product of a new energy vehicle according to the present invention;
fig. 2 is a block diagram of the new energy vehicle high-voltage PTC product processing device according to the present invention;
description of reference numerals:
1. a PCBA board assembly module; 2. the PCBA board locking module; 3. an aluminum piece dispensing module; 4. an IGBT assembly module; 5. a tablet locking module; 6. the IGBT welding module; 7. a high-voltage wire harness welding module; 8. a ground wire locking module; 9. a low-voltage wire harness welding module; 10. and a welding spot AOI inspection module.
Detailed Description
In order to explain the technical contents, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, the invention provides a method for processing a high-voltage PTC product of a new energy vehicle, which comprises the following steps:
s1, presetting a bottom shell assembly and a PCBA, and loading the PCBA into the bottom shell assembly and locking the PCBA on the bottom shell assembly; a heat dissipation aluminum piece is integrally formed on the bottom shell assembly;
s2, performing dispensing operation on one side face, far away from the bottom shell assembly, of the heat dissipation aluminum piece;
s3, presetting an IGBT device and a pressing sheet, placing the IGBT device on the side face of the heat dissipation aluminum piece subjected to glue dispensing, abutting the pressing sheet against the IGBT device, and pressing the IGBT device on the heat dissipation aluminum piece through the pressing sheet;
s4, welding the power connection pins of the IGBT device and corresponding bonding pads on the PCBA board;
s5, presetting a high-voltage wire harness, assembling the high-voltage wire harness on the bottom shell assembly and welding the high-voltage wire harness with the PCBA;
s6, presetting a grounding wire screw, and locking the grounding wire screw on the bottom shell assembly;
s7, a contact pin is preset on the bottom shell assembly, and the contact pin and the PCBA are welded;
and S8, detecting whether all welding spots meet the welding requirements, and if so, obtaining a qualified new energy automobile high-voltage PTC product.
As can be seen from the above description, the beneficial effects of the present invention are: according to the processing method of the new energy automobile high-voltage PTC product, a series of operations including PCBA board assembling and locking, heat dissipation aluminum piece attaching, IGBT device and pressing piece assembling, IGBT device welding, high-voltage wire harness welding, grounding wire screw locking, pin welding and welding spot detection are sequentially performed, the qualified new energy automobile high-voltage PTC product can be rapidly processed, the production efficiency is improved, and the product quality consistency is high.
Further, step S1 is preceded by:
and S0, performing dust removal operation on the interior of the bottom shell assembly.
As can be seen from the above description, the dust removal operation is performed on the interior of the bottom shell assembly before the PCBA is loaded into the bottom shell assembly, so that the interior of the bottom shell assembly can reach a dust-free environment as far as possible, and the influence of dust or foreign matters on the electrical performance of the PCBA is avoided.
Further, between step S1 and step S2, further comprising:
and S11, performing software burning operation on the PCBA.
According to the description, the PCBA is traditionally subjected to software burning operation in advance and then assembled into the bottom shell assembly, however, the PCBA is firstly assembled into the bottom shell assembly and then subjected to software burning operation, so that the problem that the electrical performance of the PCBA is affected by the assembly process is solved, burning is carried out after assembly, and if burning is successful, the fact that the electrical performance of the PCBA is not affected by the assembly process is indicated, so that the product quality is guaranteed.
Further, step S8 further includes:
and if not, scanning the two-dimensional code preset on the surface of the bottom shell assembly to obtain corresponding information and then putting the information into a recovery area.
According to the description, the defective products are recorded and recovered through the steps and are treated by subsequent repair personnel, so that the loss of the defective products is avoided.
Referring to fig. 2, the invention further provides a new energy automobile high-voltage PTC product processing device, which comprises a PCBA board assembling module, a PCBA board locking module, an aluminum component dispensing module, an IGBT assembling module, a pressing piece locking module, an IGBT welding module, a high-voltage wire harness welding module, a ground wire locking module, a low-voltage wire harness welding module and a welding spot AOI checking module, which are connected in sequence;
the PCBA assembly module is used for loading the PCBA into the bottom shell assembly; a heat dissipation aluminum piece is integrally formed on the bottom shell assembly;
the PCBA plate locking and attaching module is used for locking and attaching the PCBA plate to the bottom shell assembly;
the aluminum piece dispensing module is used for dispensing on one side surface of the heat dissipation aluminum piece away from the bottom shell assembly;
the IGBT assembly module is used for placing the IGBT device on the side surface of the heat dissipation aluminum piece subjected to glue dispensing;
the pressing sheet locking and attaching module is used for abutting the pressing sheet on the IGBT device and enabling the IGBT device to be tightly pressed on the heat dissipation aluminum piece through the pressing sheet;
the IGBT welding module is used for welding the electric connection pin of the IGBT device with the corresponding pad on the PCBA board;
the high-voltage wire harness welding module is used for assembling a high-voltage wire harness on the bottom shell assembly and performing welding operation with the PCBA;
the ground wire locking and attaching module is used for locking and attaching a ground wire screw on the bottom shell assembly;
the low-voltage wire harness welding module is used for welding a contact pin preset on the bottom shell assembly with the PCBA board;
and the welding spot AOI inspection module is used for detecting whether all welding spots meet the welding requirements.
As can be seen from the above description, the beneficial effects of the present invention are: according to the new energy automobile high-voltage PTC product processing equipment, a series of operations including PCBA board assembling and locking, heat dissipation aluminum piece attaching, IGBT device and pressing piece assembling, IGBT device welding, high-voltage wire harness welding, grounding wire screw locking, contact pin welding and welding point detection are sequentially performed, qualified new energy automobile high-voltage PTC products can be rapidly processed, production efficiency is improved, and product quality consistency is high.
Furthermore, still be equipped with ion dust removal module at the front end of PCBA board equipment module for to the inside operation of removing dust of drain pan subassembly.
As can be seen from the above description, the dust removal operation is performed on the interior of the bottom shell assembly before the PCBA is loaded into the bottom shell assembly, so that the interior of the bottom shell assembly can reach a dust-free environment as far as possible, and the influence of dust or foreign matters on the electrical performance of the product is avoided.
Furthermore, a PCBA board burning module is arranged between the PCBA board locking module and the aluminum component dispensing module and used for conducting software burning operation on the PCBA board.
According to the above description, traditionally, the PCBA board is subjected to the software burning operation in advance and then assembled into the bottom shell assembly, however, the scheme is that the PCBA board is firstly assembled into the bottom shell assembly to perform the software burning operation, so as to avoid the influence of the assembly process on the electrical performance of the PCBA board, and burning is performed after assembly, and if the burning is successful, the assembly process does not affect the electrical performance of the PCBA board, so that the product quality is ensured.
Furthermore, still be equipped with defective products and retrieve module and two-dimensional code scanning rifle at the rear end of solder joint AOI inspection module, two-dimensional code scanning rifle is used for scanning the two-dimensional code of predetermineeing on the chassis subassembly surface, the defective products is retrieved the module and is used for putting into the defective products and retrieves the region.
According to the description, the defective products are recorded and recovered, and are treated by subsequent repair personnel, so that the loss of the defective products is avoided.
The conveying belt penetrates through all the modules in sequence, the sensors electrically connected with the controller are arranged on all the modules respectively, the sensors are used for detecting the positions of the semi-finished products or the finished products on the conveying belt, and the driving mechanisms of all the modules are electrically connected with the controller respectively.
According to the description, the semi-finished products or the finished products are transmitted on the conveyor belt and transmitted to each module to be processed correspondingly, the position of the semi-finished products or the positions of the finished products can be sensed through the sensors, when the sensors on one module sense that the semi-finished products or the finished products are transmitted to the module, the semi-finished products or the finished products are fed back to the controller, the controller sends control signals to the driving mechanism of the module to enable the driving mechanism to start to operate, the module is prevented from being in an 'air transportation' state, and the device runs when no machined parts exist.
Referring to fig. 1, a first embodiment of the present invention is:
the invention provides a processing method of a high-voltage PTC product of a new energy automobile, which comprises the following steps:
s0, presetting a bottom shell assembly, and performing dust removal operation on the interior of the bottom shell assembly;
in this step, after the dust removal operation, carry out environmental monitoring to the bottom shell subassembly inside, when reaching the appointed requirement, just can execute follow-up step. The environment detection requirement is that the granular foreign matters with the size of more than 0.05mm can be detected, namely that the granular foreign matters with the size of more than 0.05mm do not exist in the bottom shell assembly, or the granular foreign matters with the size of more than 0.05mm are required to be below a certain amount according to different actual product requirements.
S1, presetting a PCBA, and loading the PCBA into a bottom shell assembly and locking the PCBA on the bottom shell assembly; a heat dissipation aluminum piece is integrally formed on the bottom shell assembly;
in this step, after the PCBA board is locked, a vibration test is performed on the bottom case assembly loaded with the PCBA board, and if the vibration resistance requirement is met, it is indicated that the locking operation meets the requirement, and the subsequent steps can be executed. The vibration test specifically comprises the following steps:
1. vibration mode: randomly vibrating;
2. frequency range: 5Hz to 200Hz;
3. test time per axial direction of space: 8h;
4、Power PFQ：1250W。
s11, after the PCBA is locked, performing software burning operation on the PCBA;
in this step, the burning result is detected again after burning, and whether burning is successful or not is verified.
S2, performing dispensing operation on one side face, far away from the bottom shell assembly, of the heat dissipation aluminum piece;
in this step, a vibration test is performed on the bottom shell assembly attached with the heat dissipation aluminum piece, and if the vibration resistance requirement is met, the locking operation meets the requirement, and the subsequent steps can be executed. The vibration test requirement and the specific vibration operation here are the same as those in the above-described step S1.
S3, presetting an IGBT device and a pressing sheet, placing the IGBT device on the side face of the glued heat dissipation aluminum piece, abutting the pressing sheet on the IGBT device, and pressing the IGBT device on the heat dissipation aluminum piece through the pressing sheet
In the step, a vibration test is carried out on the bottom shell assembly locked with the IGBT device and the pressing sheet, if the vibration resistance requirement is met, the locking operation meets the requirement, and the subsequent steps can be executed. The vibration test requirements and the specific vibration operation here are the same as those in the above-described step S1.
S4, welding the power connection pins of the IGBT device and corresponding bonding pads on the PCBA board;
s5, presetting a high-voltage wire harness, assembling the high-voltage wire harness on the bottom shell assembly and welding the high-voltage wire harness with the PCBA;
s6, presetting a grounding wire screw, and locking the grounding wire screw on the bottom shell assembly; and also performing anti-vibration operation to ensure that the ground wire screw is locked in place.
S7, presetting a contact pin on the bottom shell assembly, and welding the contact pin and a PCBA board pad;
and S8, detecting whether all welding spots meet the welding requirements, and if so, obtaining a qualified new energy automobile high-voltage PTC product. If not, scanning the two-dimensional code preset on the surface of the bottom shell assembly, and putting the two-dimensional code into a recovery area after obtaining corresponding information.
Referring to fig. 2, a second embodiment of the present invention is:
the invention also provides new energy automobile high-voltage PTC product processing equipment which comprises a PCBA board assembling module 1, a PCBA board locking module 2, an aluminum part dispensing module 3, an IGBT assembling module 4, a pressing piece locking module 5, an IGBT welding module 6, a high-voltage wire harness welding module 7, a ground wire locking module 8, a low-voltage wire harness welding module 9 and a welding spot AOI inspection module 10 which are connected in sequence;
the PCBA board assembling module 1 is used for loading a PCBA board into the bottom shell assembly; a heat dissipation aluminum piece is integrally formed on the bottom shell assembly;
the PCBA plate locking and attaching module 2 is used for locking and attaching the PCBA plate to the bottom shell assembly;
the aluminum piece dispensing module 3 is used for dispensing on one side surface of the heat dissipation aluminum piece away from the bottom shell assembly;
the IGBT assembly module 4 is used for placing the IGBT device on the side surface of the heat dissipation aluminum piece subjected to glue dispensing;
the pressing sheet locking and attaching module 5 is used for enabling a pressing sheet to abut against the IGBT device and enabling the IGBT device to be tightly pressed on the heat dissipation aluminum piece through the pressing sheet;
the IGBT welding module 6 is used for welding the power connection pins of the IGBT device with corresponding bonding pads on the PCBA board;
the high-voltage wire harness welding module 7 is used for assembling a high-voltage wire harness on the bottom shell assembly and performing welding operation with the PCBA;
the ground wire locking module 8 is used for locking and attaching a ground wire screw on the bottom shell assembly;
the low-voltage wire harness welding module 9 is used for welding a contact pin preset on the bottom shell assembly with the PCBA board;
the welding spot AOI checking module 10 is used for detecting whether all welding spots meet welding requirements.
In this embodiment, still be equipped with the ion dust removal module at the front end of PCBA board equipment module for to the inside operation of removing dust of drain pan subassembly.
In this embodiment, a PCBA board burning module is further disposed between the PCBA board locking module and the aluminum member dispensing module, and is configured to perform a software burning operation on the PCBA board.
In this embodiment, still be equipped with defective products and retrieve module and two-dimensional code scanning rifle at solder joint AOI inspection module's rear end, two-dimensional code scanning rifle is used for scanning the two-dimensional code of predetermineeing on the chassis subassembly surface, defective products retrieve the module and are used for putting into the defective products and retrieve the region.
In this embodiment, still include the conveyer belt, the conveyer belt runs through all modules in proper order, and all modules dispose a inductor that is connected with the controller electricity respectively, the inductor is used for detecting the position of semi-manufactured goods or finished product on the conveyer belt, and the actuating mechanism of all modules is connected with the controller electricity respectively.
The third embodiment of the invention is as follows:
in this embodiment, a new energy automobile high-voltage PTC product processing device is further defined on the basis of the second embodiment, which specifically includes:
the ion dust removal module comprises an ion air gun, a three-axis servo motion mechanism, a stepping motor and a smoke suction instrument, wherein the ion air gun is placed at a certain angle with the carrier seat, and the three-axis servo motion mechanism drives the ion air gun to move; the stepping motor is arranged on the three-axis servo movement mechanism and is used for driving the three-axis servo movement mechanism to move; the smoking instrument is installed on the three-axis servo motion mechanism, and position movement is carried out through the three-axis servo motion mechanism.
The PCBA board assembly module comprises a first manipulator, a sucker assembly and a CCD visual detection assembly, wherein the sucker assembly is arranged on the first manipulator, and the CCD visual detection assembly is arranged above the carrier in a detection manner;
the PCBA board locking and attaching module comprises a screw feeder, a servo screwdriver, a three-axis servo mechanism and a torque tester, wherein the servo screwdriver is installed on the three-axis servo mechanism; the screw feeder is fixed on the equipment rack, the torque tester is installed on the module is paid to the PCBA board lock, carries out torque control when paying to the lock.
The PCBA board burning module comprises a burning mechanism, a burning instrument and a jacking positioning mechanism, wherein the burning instrument is assembled in the burning mechanism, and the jacking positioning mechanism is positioned below the burning mechanism;
the aluminum part dispensing module comprises a second manipulator, a screw valve, a glue barrel and a dispensing weighing component, wherein the screw valve is assembled on the second manipulator, and the glue barrel is arranged below the screw valve; the dispensing weighing component is fixed on the frame, and the dispensing amount and the glue figure are checked when the machine is started.
The IGBT assembly module comprises a rack, a first jacking positioning mechanism and a third manipulator, wherein the first jacking positioning mechanism and the third manipulator are respectively arranged on the rack;
the pressing sheet locking and attaching module comprises a screw feeder, a servo electric screwdriver, a three-axis servo mechanism and a torque tester, wherein the servo electric screwdriver is arranged on the three-axis servo mechanism; the screw feeder is fixed on the equipment rack, the torque tester is installed on the pressing sheet locking module, and torque control is performed during locking. The IGBT welding module comprises a four-axis servo motion mechanism, a second jacking positioning mechanism, a welding iron and a welding protective cover plate, wherein the welding iron is arranged on the four-axis servo motion mechanism, and the welding protective cover plate is arranged right above the second jacking positioning mechanism;
the ground wire locking and attaching module comprises a screw feeder, a servo electric screwdriver, a three-axis servo mechanism and a torque tester, wherein the servo electric screwdriver is installed on the three-axis servo mechanism; the screw feeder is fixed on the equipment table board, and the torque testing sensing device of the torque tester is installed on the ground wire locking module.
The high-voltage wire harness welding module comprises a four-axis servo motion mechanism, a third jacking positioning mechanism, a welding iron and a welding protective cover plate, wherein the welding iron is arranged on the four-axis servo motion mechanism, and the welding protective cover plate is arranged right above the third jacking positioning mechanism;
the low-voltage wire harness welding module comprises a four-axis servo motion mechanism, a fourth jacking positioning mechanism, a welding iron and a welding protective cover plate, wherein the welding iron is arranged on the four-axis servo motion mechanism, and the welding protective cover plate is arranged right above the fourth jacking positioning mechanism;
solder joint AOI detects the module and includes camera and PLC control system, the camera is connected with PLC control system electricity.
The corresponding processing method of the new energy automobile high-voltage PTC product processing equipment comprises the following steps:
step 1, driving an ion air gun to remove dust on a bottom shell assembly on a jacking positioning mechanism through a three-axis servo motion mechanism, and connecting a dust collection pipe with a dust collection cover to collect the dust;
step 2, controlling a manipulator through a manipulator controller to drive a sucker component to adsorb the PCBA single-board component and then placing the PCBA single-board component on a bottom shell component on the jacking positioning mechanism, checking whether the PCBA horizontal plane is placed in place through a lower visual CCD component and an upper visual CCD component, and testing whether the PCBA horizontal height is placed in place through a laser height measuring sensor;
step 4, driving a burning instrument to burn the PCBA on the jacking positioning mechanism through the burning mechanism;
step 6, picking up the IGBT assembly through a manipulator and placing the IGBT assembly in a bottom shell assembly of the jacking positioning mechanism, and then detecting that the IGBT is placed in place through a lower vision CCD assembly;
step 9, driving a welding pen to weld the IGBT pin on the jacking positioning mechanism through a four-axis servo motion mechanism, placing a welding protection cover plate above the PCBA during welding to prevent soldering tin slag from falling into the PCBA, sucking out welding smoke generated by welding through a smoke suction instrument, blowing tin after each welding of the soldering tin is finished, and collecting the soldering tin in a tin slag box;
step 11, driving a servo electric screwdriver to adsorb screws in a screw feeder through a three-axis servo movement mechanism, then locking the screw screwdriver on a bottom shell assembly in a jacking positioning mechanism, aligning the servo electric screwdriver and the jacking positioning mechanism through a screw aligning mechanism, and performing point inspection through a torque calibrator each time;
step 12, driving a welding pen to weld the IGBT pin on the jacking positioning mechanism through a four-axis servo movement mechanism, placing a welding protection cover plate above the PCBA during welding to prevent soldering tin slag from falling into the PCBA, sucking out welding smoke generated by welding through a smoke suction instrument, blowing tin after each welding of the soldering tin is finished, and collecting the soldering tin in a tin slag box;
and step 13, checking IGBT welding spots, low-voltage wiring harness welding spots and high-voltage wiring harness welding spots in a bottom shell assembly on the jacking positioning mechanism through the AOI detection mechanism, and displaying detection results in an industrial personal computer.
The production process adopts various automatic production equipment to replace the original manual production, has high production efficiency, low production cost and good product quality consistency, only needs a small amount of control and management staff, lightens the working intensity of the staff, has low staff mobility and low management cost, occupies small area and saves space.
Further, in step 2, the PCBA board is subjected to board loading through a board loading machine, the two-dimensional code on the PCBA is scanned through a scanning gun, whether the PCBA is a current production product is checked, and the PCBA bar code is recorded, so that the purpose of error prevention is achieved.
Further, the servo screwdriver adopted in the step 3 has a torque recording and uploading function, can be calibrated on line, has a screw stripping alarm function, avoids the phenomenon that the screw is locked, controls the number of rotating turns simultaneously, prevents the situation that the lock is not in place from occurring, scans the two-dimensional code by using a scanning gun, prompts and alarms in the process that the previous process is not scanned, and avoids the continuous operation of unprocessed products.
Furthermore, in the step 4, the PCBA burning instrument can burn times, and the burning thimble is subjected to vulnerable part management, so that the phenomenon that unqualified products flow out or a production line alarms due to damage of the thimble is avoided.
Further, whether the glue is completely covered or not is checked through the lower station CCD in the step 5, and the phenomenon that the glue is not completely coated due to the fact that air exists in the glue to cause the phenomenon that the glue is broken is avoided, so that the service life is shortened due to insufficient heat conduction in the using process.
Furthermore, a further NG product off-line process is carried out after the process of the step 7, the defective product of which process can be tracked through code scanning, a mechanical lock is added in the defective product process, and only qualified specially-assigned persons can open the mechanical lock and carry out upgrading treatment.
Further, in step 13, AOI detection can identify whether welding spots are complete, alarm can be given after 3 pieces of unqualified welding spots are continuously detected, and starting can be carried out after line stop and problem analysis contact alarm.
In conclusion, according to the processing method and the processing equipment for the new energy automobile high-voltage PTC product, provided by the invention, a series of operations including PCBA board assembling and locking, heat dissipation aluminum piece attaching, IGBT device and pressing piece assembling, IGBT device welding, high-voltage wire harness welding, grounding wire screw locking, pin welding and welding spot detection are sequentially performed, so that the qualified new energy automobile high-voltage PTC product can be rapidly processed, the production efficiency is improved, and the product quality consistency is higher.
The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention and the contents of the accompanying drawings, which are directly or indirectly applied to the related technical fields, are included in the scope of the present invention.
Claims (9)
1. A processing method of a new energy automobile high-voltage PTC product is characterized by comprising the following steps:
s1, presetting a bottom shell assembly and a PCBA (printed Circuit Board Assembly), and loading the PCBA into the bottom shell assembly and locking the PCBA on the bottom shell assembly; a heat dissipation aluminum piece is integrally formed on the bottom shell assembly;
s2, performing dispensing operation on one side face, far away from the bottom shell assembly, of the heat dissipation aluminum piece;
s3, presetting an IGBT device and a pressing sheet, placing the IGBT device on the side face of the heat dissipation aluminum piece subjected to glue dispensing, abutting the pressing sheet against the IGBT device, and pressing the IGBT device on the heat dissipation aluminum piece through the pressing sheet;
s4, welding the electric connection pin of the IGBT device and the corresponding pad on the PCBA board;
s5, presetting a high-voltage wire harness, assembling the high-voltage wire harness on the bottom shell assembly and welding the high-voltage wire harness with the PCBA;
s6, presetting a ground wire screw, and locking the ground wire screw on the bottom shell assembly;
s7, presetting a contact pin on the bottom shell assembly, and welding the contact pin and the PCBA board;
and S8, detecting whether all welding spots meet the welding requirements, and if so, obtaining a qualified new energy automobile high-voltage PTC product.
2. The processing method of the new energy automobile high-voltage PTC product according to claim 1, characterized in that step S1 is preceded by the steps of:
and S0, performing dust removal operation on the interior of the bottom shell assembly.
3. The processing method of the new energy automobile high-voltage PTC product according to claim 1, further comprising between step S1 and step S2:
and S11, performing software burning operation on the PCBA.
4. The processing method of the new energy automobile high-voltage PTC product according to claim 1, wherein step S8 further comprises:
and if not, scanning the two-dimensional code preset on the surface of the bottom shell assembly to obtain corresponding information and then putting the information into a recovery area.
5. The new energy automobile high-voltage PTC product processing equipment is characterized by comprising a PCBA (printed circuit board assembly) module, a PCBA locking module, an aluminum component dispensing module, an IGBT (insulated gate bipolar translator) assembly module, a pressing sheet locking module, an IGBT welding module, a high-voltage wire harness welding module, a ground wire locking module, a low-voltage wire harness welding module and a welding spot AOI (automated optical inspection) module which are connected in sequence;
the PCBA board assembly module is used for loading the PCBA board into the bottom shell assembly; a heat dissipation aluminum piece is integrally formed on the bottom shell assembly;
the PCBA plate locking and attaching module is used for locking and attaching the PCBA plate to the bottom shell assembly;
the aluminum piece dispensing module is used for dispensing on one side surface of the heat dissipation aluminum piece away from the bottom shell assembly;
the IGBT assembly module is used for placing an IGBT device on the side surface of the heat dissipation aluminum piece subjected to adhesive dispensing;
the pressing sheet locking and attaching module is used for abutting the pressing sheet on the IGBT device and enabling the IGBT device to be tightly pressed on the heat dissipation aluminum piece through the pressing sheet;
the IGBT welding module is used for welding the electric connection pin of the IGBT device with the corresponding pad on the PCBA board;
the high-voltage wire harness welding module is used for assembling a high-voltage wire harness on the bottom shell assembly and performing welding operation with the PCBA;
the ground wire locking and attaching module is used for locking and attaching a ground wire screw on the bottom shell assembly;
the low-voltage wire harness welding module is used for welding a contact pin preset on the bottom shell assembly with the PCBA board;
and the welding spot AOI inspection module is used for detecting whether all welding spots meet the welding requirements.
6. The new energy automobile high-voltage PTC product processing equipment according to claim 5, wherein an ion dust removal module is further arranged at the front end of the PCBA board assembly module and used for removing dust inside the bottom shell assembly.
7. The new energy automobile high-voltage PTC product processing equipment according to claim 5, wherein a PCBA board burning module is further arranged between the PCBA board locking module and the aluminum component dispensing module and used for conducting software burning operation on the PCBA board.
8. The new energy automobile high-voltage PTC product processing equipment according to claim 5, wherein a defective product recovery module and a two-dimensional code scanning gun are further arranged at the rear end of the welding spot AOI inspection module, the two-dimensional code scanning gun is used for scanning a two-dimensional code preset on the surface of the bottom shell assembly, and the defective product recovery module is used for placing a defective product into a recovery area.
9. The new energy automobile high-voltage PTC product processing device according to claim 5, further comprising a conveyor belt, wherein the conveyor belt sequentially penetrates all the modules, and all the modules are respectively provided with a sensor electrically connected with the controller, the sensors are used for detecting the position of the semi-finished product or the finished product on the conveyor belt, and the driving mechanisms of all the modules are respectively electrically connected with the controller.
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