CN114986151A - Automatic assembly line - Google Patents

Abstract

The invention discloses an automatic assembly production line, which comprises a feeding machine, a front dispensing machine, a front assembling machine and a front solidifying machine which are sequentially butted to form a front section assembly line, a rear dispensing machine, a rear assembling machine and a rear solidifying machine which are sequentially butted at the output end of the front solidifying machine to form a rear section assembly line, a front carrier used for fixing a bottom shell in the front section assembly line in a circulating way and a rear carrier used for fixing a semi-finished product in the rear section assembly line in a circulating way, wherein the feeding machine is used for feeding the bottom shell, the front dispensing machine is used for dispensing glue on a first dispensing area of the bottom shell, the front assembling machine is used for adhering a PCBA plate and the bottom shell, the front solidifying machine is used for solidifying glue between the bottom shell and the PCBA plate to form a semi-finished product, the rear dispensing machine is used for dispensing glue on a second dispensing area of the bottom shell in the semi-finished product, the rear assembling machine is used for adhering between a top cover and the bottom shell of the semi-finished product, and the rear solidifying machine is used for solidifying glue between the bottom shell and the top cover of the semi-finished product to form a finished product, the output end of the post-curing machine is also provided with a blanking machine for detecting and classifying finished products.

Description

Automatic assembly line

technical field

The invention relates to an assembly of electronic products, in particular to an automatic assembly line.

Background technique

Many electronic products such as mobile phones, computers, smart watches and sensors widely exist in people's daily life and work. Most of them include casings and electronic components and mechanical parts housed in the casings. During the assembly and production process, It often involves firmly fixing the electronic components assembled in the casing in the casing through glue, and it is often necessary to cure the electronic products after dispensing to achieve firm bonding. With the rapid development of science and technology, the trend of miniaturization of electronic products is obvious, and electronic parts are also developed towards high-density integration and ultra-fineness. Therefore, how to achieve efficient and accurate positioning and effective curing is such a Problems that need to be solved in the assembly of electronic products. For example, in the process of assembling a more precise and sensitive in-vehicle IMU, it involves applying glue to the bottom case first, and assembling the PCBA board on the bottom case efficiently and accurately in a limited time. In particular, it is necessary to ensure that the assembly gap between the PCBA board and the peripheral wall of the bottom shell must be within the specified value range, and the assembly gap is very small. For example, if it is only 0.5mm, the requirements for the assembly operation are even higher. And after dispensing, the glue between the two needs to be cured, so that after the two are firmly assembled, the bottom shell needs to be dispensed again, so that the top cover can be quickly and accurately bonded to the bottom shell, thereby The main body of the PCBA board is encapsulated in the space defined by the bottom case and the top cover, and after assembly, it needs to be cured again to achieve firm assembly.

Therefore, an automatic assembly line capable of automatic dispensing, assembly and curing is urgently needed to solve the above problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an automatic assembly line with reasonable layout, high dispensing and assembly precision, good curing effect and high efficiency.

In order to achieve the above purpose, the present invention discloses an automatic assembly production line, which is used for assembling the bottom case, PCBA board and top cover of the vehicle-mounted IMU. The glue dispensing area and the second glue dispensing area, the automatic assembly line includes a feeder, a pre-dispenser, a pre-assembly machine and a pre-curing machine that are connected in sequence to form the front-end assembly line, and a pre-curing machine The output ends of the machine are connected in sequence to form the rear dispensing machine, rear assembling machine and rear curing machine of the rear assembly line. The feeding machine is used for feeding, coding, cleaning and conveying of the bottom shell. The glue dispensing machine is used for dispensing glue in the first glue dispensing area of the bottom shell and conveying the bottom shell after dispensing. Position bonding and transfer of the bottom case with the PCBA board, the pre-curing machine is used for curing the glue between the bottom case and the PCBA board to form a semi-finished product and transfer the semi-finished product, The rear dispensing machine is used for dispensing the second dispensing area of the semi-finished mid-bottom shell and conveying the semi-finished product after dispensing. The positional bonding between the bottom shells of the semi-finished products and the transfer of the semi-finished products with the top cover bonded, the post-curing machine is used for the curing of the glue between the top cover and the semi-finished products to form a finished product. The finished product is conveyed, and a front carrier for fixing the bottom case and for maintaining and positioning the preliminarily bonded PCBA board and the bottom case is circulated in the front section of the assembly line. In the assembly line, a rear carrier for fixing the semi-finished product and for holding and positioning the preliminarily bonded top cover and the semi-finished product is recycled. It is used for assembly inspection and classification of the finished product.

Preferably, the automatic assembly line has a front conveying line, a front return line arranged beside the front conveying line, a rear conveying line and a rear return line arranged beside the rear conveying line, the The front conveying line and the front return line are passed through the front assembly line in the opposite direction, the front carrier is circulated in the front conveying line and the front return line, and the rear conveying line and the The conveying direction of the rear return line is opposite to that of the rear assembly line, and the rear carriers are circulated and conveyed in the rear conveying line and the rear return line.

Preferably, the input ends of the feeding machine and the rear dispensing machine are respectively provided with a front docking station, and the output ends of the front group docking machine and the rear group docking machine are respectively provided. There is a rear docking station, and the front docking station is used to push the front carrier empty at the output end of the front return line into the feeder or empty the output end of the rear return line The rear carrier is pushed into the rear dispensing machine, and the rear docking station is used to push the front carrier empty at the input end of the front return line into the front assembly machine. Or push the rear carrier empty at the input end of the rear return line into the rear assembly machine.

Preferably, both the front carrier and the rear carrier are provided with a first profiling groove and a pressing arm arranged on the side of the first profiling groove, and the first profiling groove is used for the The placement of the bottom case, and the first profiling groove has at least two placement clips of different sizes arranged along the groove depth direction, and the front carrier is also provided with a position on the other side of the pressing arm. A second profile groove on one side and a press cover arranged in the second profile groove, the press cover is used to cover the top side end of the bottom case, so as to be preliminarily attached to the bottom case The inner PCBA board is in contact with each other, and the pressing arm is arranged in a liftable and rotatable manner, and is used for abutting with the pressing cover or the top cover which is covered on the bottom case from above.

Preferably, the feeding machine, the first group of machines and the second group of machines are all provided with a feeding device, and the feeding device includes a feeding conveyor belt, which is arranged in a one-to-one correspondence. The two lifting mechanisms on the bottom side of the front and rear opposite ends of the feeding conveyor belt and the front clamping mechanism and the rear clamping mechanism correspondingly arranged on the top side of the front and rear opposite ends of the feeding conveyor belt are located on the top side of the opposite front end. The lifting mechanism cooperates with the front clamping mechanism, and is used for stacking a stack of trays stacked on the upper side of the feeding conveyor belt and loaded with the bottom case, the PCBA board or the top cover one by one Put it on the feeding conveyor belt, the feeding conveyor belt is used to transport the received trays in the direction from front to back, and the lifting mechanism and the rear clamping mechanism are located at the opposite rear ends. It is used to push up the empty material tray after the bottom case, the PCBA board or the top cover is taken out to be stacked above the material feeding conveyor belt.

Preferably, both the front glue dispenser and the rear glue dispenser are provided with two glue dispensing devices, and the glues dispensed by the two glue dispensing devices may be different, and the rear glue dispenser is used for The semi-finished product is driven to turn over at a certain angle, so that the semi-finished product is in a position convenient for dispensing by the glue dispensing device, and the overturned semi-finished product is also driven to rotate around the glue dispensing device during the glue dispensing process.

Preferably, both the pre-curing machine and the post-curing machine have a tunnel furnace, a cooling conveyor belt and a return conveyor belt that are spaced apart from the side of the tunnel furnace, and the cooling conveyor belt and the return conveyor belt are two. The input end of the cooling conveyor is arranged flush at the discharge port of the tunnel furnace, the output end of the cooling conveyor extends into the post-dispenser or the unloading machine, and the cooling conveyor is curved. The hook-shaped arrangement is used for the acceptance and transmission of the cured semi-finished product or the finished product, and during the transmission process, the semi-finished product or the finished product is cooled by a fan, and the output end of the return conveyor belt is connected to the The output ends of the front assembling machine or the rear assembling machine are connected to each other, and are used for the return transmission of the empty front carrier or the rear carrier after the semi-finished products or finished products are taken away.

Preferably, a push-in device and a push-out device are respectively provided at the feed port and the discharge port of the tunnel furnace, and a split device is also provided between the push-out device and the cooling conveyor belt, and the push-in device is also provided. For pushing the front carrier carrying the preliminarily bonded PCBA board and the bottom case or the rear carrier carrying the preliminarily bonded top cover and the semi-finished product into the corresponding tunnel furnace in a row, The tunnel furnace transfers the front carriers or the rear carriers row by row to the push-out device according to the order of entry, and the push device is used to push the rows of the front carriers or the rear carriers are conveyed one by one towards the direction of the splitting device for taking out the semi-finished product or the finished product from the corresponding front carrier or the rear carrier and transferring it to the corresponding cooling The input end of the conveyor belt also transfers the empty front carrier or rear carrier to the corresponding input end of the return conveyor belt.

Preferably, the front assembling machine includes a feeding device and a conveying device that are spaced apart along the left and right directions, a assembling device erected on the upper side of the feeding device and the conveying device, and a An assembly device between the feeding device and the conveying device and a detection device provided at the assembly device, the feeding device is used for feeding and conveying the PCBA board, and the conveying device passes through the The bottom case coated with glue at the transmission point of the front carrier and the bottom case bonded with the PCBA board, and the front carrier is provided with a preliminarily bonded PCBA board and the bottom case to hold pressure Positioned press cover and press arm, the assembly device travels back and forth between the feeding device, the positioning device and the conveying device, for picking and placing the PCBA board on the feeding device After the alignment adjustment is performed on the positioning device, the aligned PCBA board is bonded to the bottom case, and the assembly device also assembles the press cover of the carrier to the assembly. the top side end of the bottom case of the PCBA board, and drives the pressing arm to rotate or move to contact with the top side end of the pressing cover, and the detection device is used for the PCBA board before assembly The identification of the three-dimensional coordinates with the bottom case and the identification of the assembly gap between the assembled PCBA board and the bottom case.

Preferably, the rear glue dispenser comprises a glue dispensing table, two glue dispensing devices arranged on the opposite right side of the glue dispensing table at an interval along the front-rear direction, and a glue dispensing device arranged in the front-rear direction on the glue dispensing table. The discharge conveyor on the opposite left side and the transfer device erected on the upper side of the dispensing table and the discharge conveyor, the transfer device transfers the semi-finished product to the dispensing through the feeding gripper On the table, the dispensing table is used to fix the received semi-finished product and drive the semi-finished product to turn over at a certain angle, and also drive the flipped semi-finished product to rotate horizontally, so as to be compatible with the two places moved to the dispensing table. At least one of the dispensing devices cooperates to complete the dispensing of the second dispensing area of the bottom shell of the semi-finished product. The dispensing table is removed and transferred to the discharging conveyor, and the bottom case after dispensing is conveyed by the discharging conveyor for discharging.

Compared with the prior art, the automatic assembly line of the present invention realizes the automatic assembly process of dispensing, assembling and curing between the bottom shell of the vehicle-mounted IMU and the PCBA board to form a semi-finished product through the front-end assembly line. The rear-end assembly line realizes the dispensing, assembly and curing between the top cover and bottom shell of the vehicle-mounted IMU to form a finished product. The whole assembly efficiency is high, the assembly precision is high and efficient; The recycled front carrier fixes the bottom case, thereby further improving the dispensing accuracy and the assembly accuracy between the PCBA board and the bottom case. Prevent the two from shifting during the glue curing process, thereby improving the curing accuracy and effectively improving the curing efficiency. The semi-finished product is also fixed by the rear carrier that is recycled in the rear assembly line, thereby further improving the dispensing accuracy and top cover. The assembly accuracy between the semi-finished product and the top cover and the preliminarily bonded top cover and the semi-finished product are maintained and positioned by the rear carrier, which can effectively prevent the two from shifting during the curing process of the glue, thereby improving the curing accuracy and effectively improving the curing efficiency. Recycling can effectively improve the use efficiency of the two types of carriers; in addition, the automatic assembly production line of the present invention also performs assembly inspection and classification of finished products through the unloading machine located at the output end of the post-curing machine, thereby effectively ensuring that the assembled products are assembled. The quality of the in-vehicle IMU is improved, and the assembly efficiency is further improved through automatic unloading.

Description of drawings

FIG. 1 is a three-dimensional structural diagram of an electronic product of the present invention.

FIG. 2 is an exploded structural diagram of the electronic product of the present invention.

FIG. 3 is a plan view of the automatic assembly line of the present invention.

FIG. 4 is a plan view of the front carrier of the present invention.

FIG. 5 is a perspective structural view of the feeding device of the present invention.

FIG. 6 is a plan view of the feeder of the present invention.

FIG. 7 is a plan view of the front glue dispenser of the invention.

FIG. 8 is a plan view of the front assembly of the present invention.

FIG. 9 is a perspective structural view of the transfer device of the present invention.

FIG. 10 is a three-dimensional structural view of the cap removal tip of the present invention.

FIG. 11 is a perspective structural view of the pre-curing machine of the present invention.

FIG. 12 is a perspective structural view of the push-in device of the present invention.

FIG. 13 is a perspective structural view of the push-in device of the present invention from another angle.

FIG. 14 is a three-dimensional structural view of the ejecting device and the disassembling device of the present invention.

FIG. 15 is a plan view of the post-dispensing machine of the present invention.

FIG. 16 is a perspective structural view of the dispensing station of the present invention.

FIG. 17 is a perspective structural view of the positioning plate of the present invention.

FIG. 18 is a plan view of the rear assembly machine of the present invention.

Fig. 19 is a plan view of the blanking machine of the present invention.

Detailed ways

In order to describe the technical content, structural features, achieved objects and effects of the present invention in detail, the following detailed description is given in conjunction with the embodiments and the accompanying drawings.

Referring to FIGS. 1 and 2 , the present invention relates to the assembly of electronic products 200, and in particular, to electronic products that are fixed by glue during the assembly process. In this application, electronic products 200 include but are not limited to mobile phones, computers, smart watches and automotive IMU et al. Specifically, the electronic product 200 disclosed in the preferred embodiment of the present invention is an in-vehicle IMU, which is roughly square, and specifically includes a bottom case 201 , a PCBA board 202 accommodated in the bottom case 201 , and a top side end of the bottom case 201 . The top cover 203 and the main body of the PCBA board 202 are encapsulated in the placement space defined by the bottom case 201 and the top cover 203 . The bottom case 201 and the top cover 203 are both made of metal materials, and the PCBA board 202 is only pasted in the bottom case 201 by the glue applied on the first dispensing area W1 of the opposite bottom inner wall of the bottom case 201 . There is an assembly gap of 0.5 mm with the side wall of the bottom case 201, so there is no contact. The first dispensing area W1 is specifically the position corresponding to the four vertices of the bottom inner wall of the bottom case 201, and the top cover 203 is coated on the bottom cover 203 by dispensing. The glue at the second glue dispensing area W2 of the opposite top inner wall of the bottom case 201 is pasted on the bottom case 201 with an assembly gap of 0.1 mm between it and the top side end of the PCBA board 202 . Specifically, the second glue dispensing area W2 is arranged along the circumferential direction of the opposite top inner walls of the bottom case 201 , so that the top cover 203 is integrally accommodated at the top side end of the bottom case 201 , that is, the top surfaces of the top cover 203 and the bottom case 201 are opposite to each other. To be flush, more specifically, the inner peripheral wall of the top side end of the bottom case 201 has a relatively narrow clamping table, and the second glue dispensing area W2 is specifically arranged on the clamping table.

Referring to FIG. 3 and FIG. 4 , the present invention discloses an automatic assembly line 100 for assembling the bottom case 201 , the PCBA board 202 and the top cover 203 of the vehicle-mounted IMU. The assembly line 100 includes: a feeder 10 , a front glue dispenser 20 , a front assembly machine 30 and a front curing machine 40 , which are connected in sequence to form the front assembly line 100 a , and are connected to the output end of the front curing machine 40 in sequence to The post-dispensing machine 50 , the post-assembly machine 60 , the post-curing machine 70 , and the feeding machine 80 connected to the output end of the post-curing machine 70 are formed. Among them, the feeding machine 10 is used for feeding, coding, cleaning and conveying of the bottom shell 201 , and the front dispensing machine 20 is used for dispensing glue in the first dispensing area W1 of the bottom shell 201 and the bottom shell 201 after dispensing. The front assembly machine 30 is used for the feeding of the PCBA board 202, the alignment bonding between the PCBA board 202 and the bottom case 201, and the transmission of the bottom case 201 with the PCBA board 202 bonded. The front curing machine 40 is used for the bottom case 201. The glue between the shell 201 and the PCBA board 202 is cured to form a semi-finished product and transfer the semi-finished product. The rear dispensing machine 50 is used for dispensing glue in the second dispensing area W2 of the semi-finished bottom shell 201 and transferring the semi-finished product after dispensing, and the rear assembly machine 60 is used for feeding the top cover 203, the top cover 203 and the semi-finished product. The alignment bonding between the bottom shells 201 and the transfer of the semi-finished product with the top cover 203 bonded, the post-curing machine 70 is used for curing the glue between the top cover 203 and the semi-finished product to form a finished product and transfer the finished product, a blanking machine 80 is used for assembly inspection and classification of finished products. Among them, the front carrier 300 for fixing the bottom case 201 and for maintaining and positioning the preliminarily bonded PCBA board 202 and the bottom case 201 is used cyclically in the front assembly line 100a, and is used in the rear assembly line 100b. A rear carrier for fixing the semi-finished product and performing pressure-maintaining positioning on the preliminarily bonded top cover 203 and the semi-finished product. It should be noted that the machines in the automatic assembly line 100 of the present invention are arranged in a straight line as a whole. In order to show the connection between the machines more clearly, the front assembly line 100a and the rear assembly line 100b are separated in FIG. 3 . Open for display.

In general, in the automatic assembly production line 100 of the present invention, in order to simplify the structure and reduce the manufacturing cost, on the one hand, the feeding device 400 is provided in the feeding machine 10 , the front assembling machine 30 and the rear assembling machine 60 , Therefore, the automatic feeding of the bottom case 201 , the PCBA board 202 and the top cover 203 is realized through the corresponding feeding devices 400 . On the other hand, both the front glue dispenser 20 and the rear glue dispenser 50 are provided with two glue dispensing devices, and the glues dispensed by the respective two glue dispensing devices can be different, so that not only can continuous glue dispensing be realized, but also effectively improve the Assembly efficiency, and adapt to the dispensing of different products, effectively improve the adaptability of the entire production line. The rear glue dispenser 50 can drive the semi-finished product to turn over at a certain angle to be in a position that is convenient for the glue dispensing device to dispense glue, and also drives the semi-finished product to rotate around the glue dispensing device during the glue dispensing process, so as to efficiently and conveniently adjust the bottom shell 201. The inner peripheral wall is glued. Furthermore, the pre-curing machine 40 and the post-curing machine 70 both solidify the glue through a tunnel furnace, and after the solidified semi-finished products and finished products are subjected to cooling treatment, the subsequent assembly of the top cover 203 and the unloading of finished products are performed. . It should be noted that the automatic assembly production line 100 of the present invention further includes a control system, and the control system is respectively connected with the feeder 10, the front glue dispenser 20, the front assembly machine 30, the front curing machine 40, the rear glue dispenser 50, The post-assembly machine 60, the post-curing machine 70 and the unloader 80 are connected to send various motion commands to control the coordinated actions between the machines connected to it. The control system is the existing control system, and its structure and control principles are well known in the art, so they will not be described in detail here. In addition, the front-rear direction, the left-right direction, and the up-down direction in this application correspond to the conveying direction of the entire production line, the direction perpendicular to the conveying direction of the production line, and the direction both perpendicular to the front-rear direction and the left-right direction.

3 to 6 and 8, the general structure or main transmission structure in each machine will be described first:

Referring to FIG. 3 , as far as the entire production line is concerned, there are a front conveying line 101 arranged in the front-rear direction, a front return line 102 arranged beside the front conveying line 101 , a rear conveying line 103 , and a front conveying line 103 arranged beside the rear conveying line 103 . The rear return line 104, the front conveying line 101 and the front return line 102 are passed through the front assembly line 100a in the opposite direction of transmission, and are respectively used for carrying the bottom case 201 and the front side of the bottom case 201 with the PCBA board 202 attached. The transfer of the carrier 300 and the return transfer of the empty front carrier 300, the rear conveying line 103 and the rear return line 104 are passed through the rear assembly line 100b in opposite directions for carrying semi-finished products and bonding The transfer of the semi-finished rear carrier of the top cover 203 and the return transfer of the empty rear carrier. Among them, the corresponding belt conveyor mechanism 121 , belt conveyor mechanism 211 , belt conveyor mechanism 311 and cooling conveyor belt 42 in the feeding machine 10 , the front dispensing machine 20 , the front assembly machine 30 and the front curing machine 40 are connected in sequence to form the front The conveyor line 101, the post-dispensing machine 50, the post-assembly machine 60 and the post-curing machine 70 corresponding to the belt conveying mechanism 511, the belt conveying mechanism 621 and the cooling conveyor belt 72 are connected in sequence to form the post-conveying line 103; the feeding machine 10 , the corresponding belt conveying mechanism 122, belt conveying mechanism 212, belt conveying mechanism 312 and return conveying belt 43 in the front dispensing machine 20, the front assembly machine 30 and the front curing machine 40 are connected in sequence to form the front return line 102. The corresponding belt conveying mechanism 512 , the belt conveying mechanism 622 and the return conveying belt 73 in the melter 50 , the post assembling machine 60 and the post curing machine 70 are connected in sequence to form the post return line 104 .

3 , 6 , 8 , 12 and 13 , further, in order to facilitate the recycling of the front carrier 300 and the rear carrier, the input ends of the feeder 10 and the rear glue dispenser 50 are respectively A front docking station 105 is provided, and a rear docking station 106 is respectively provided at the output ends of the front group docking machine 30 and the rear group docking machine 60 . The front docking station 105 is used to push the front carrier 300 empty at the output end of the front return line 102 into the feeder 10, or to push the empty rear carrier 300 at the output end of the rear return line 104 to the rear dispensing The rear docking station 106 is used to push the front carrier 300 empty at the input end of the front return line 102 back into the front assembly machine 30, or to reflow the rear The empty rear carrier at the input end of the line 104 is pushed back into the rear assembly machine 60 , that is, the empty front carrier 300 or the rear carrier after reclaiming is conveyed in the opposite direction to the conveying direction of the entire production line. Specifically, as shown in FIG. 6 , the front docking stage 105 includes a front stage 1051 , a front guide plate 1052 movably arranged on the front stage 1051 in the left-right direction, and a front stage 1051 movably arranged in the front-rear direction. The front feeding plate 1053 on the upper side, the front carrier 1051 is used to receive the empty front carrier 300 or the rear carrier at the output end of the belt conveyor mechanism 122 or the belt conveyor mechanism 512, and the front guide plate 1052 is connected with the linear cylinder 1054. Under the driving force of the belt conveyor, it moves linearly in the left-right direction to push the empty front carrier 300 or the rear carrier to the position opposite to the input end of the belt conveying mechanism 121 or the belt conveying mechanism 511, and the front feeding plate 1053 is connected to it. The driving of the linear cylinder 1055 moves linearly in the front-rear direction to push the front carrier 300 or the rear carrier into the belt conveying mechanism 121 or the belt conveying mechanism 511 . Specifically, as shown in FIGS. 8 , 12 and 13 , the rear docking stage 106 includes a rear stage 1061 , a rear guide plate 1062 movably arranged on the rear stage 1061 in the left-right direction, and a rear guide plate 1062 movably arranged in the front-rear direction The rear feeding plate 1063 is arranged on the rear carrier 1061, the rear carrier 1061 is used to receive the front carrier 300 or the rear carrier empty at the return conveyor belt 43 or the return conveyor belt 73, and the rear guide plate 1062 is in a straight line connected with it. Driven by the air cylinder 1064, it moves linearly in the left-right direction to push the received empty front carrier 300 or rear carrier to a position opposite to the input end of the belt conveyor mechanism 312 or the belt conveyor mechanism 622, and the rear feed plate 1063 It moves linearly in the front-rear direction under the driving of the linear air cylinder 1065 connected thereto to push the front carrier 300 or the rear carrier into the belt conveyor mechanism 312 or the belt conveyor mechanism 622 .

Referring to FIG. 4 , specifically, the front carrier 300 is provided with a first profiling groove 301 and a pressing arm 302 arranged on the side of the first profiling groove 301 . The shapes of the contours are matched for the placement of the bottom case 201. The front carrier 300 is also provided with a second profiling groove 303 on the other side of the pressing arm 302 and a pressing cover 304 arranged in the second profiling groove 303. , the pressing cover 304 is used to cover the top side end of the bottom case 201 to abut with the PCBA board 202 initially pasted in the bottom case 201 , and the pressing arm 302 is arranged in a liftable and rotatable manner for connecting with the bottom case 201 from above. The press cover 304 covering the bottom case 201 abuts against each other, thereby realizing pressure-maintaining positioning and ensuring curing accuracy. Wherein, in some embodiments, the first profiling groove 301 has at least two placement positions arranged along the depth direction of the groove with different areas, so as to be suitable for the placement of bottom shells 201 of different specifications, effectively improving the adaptability sex. Correspondingly, the number of the second profiling grooves 303 is also at least two, so as to correspond to the bottom case 201 . Preferably, in some embodiments, the outer side wall of the front carrier 300 is further provided with a through hole 305 communicating with the first profiling groove 301 , so as to facilitate the coding and scanning of the bottom case 201 . In order to facilitate the flow and pulling, the structure of the rear carrier can be set to be substantially the same as the structure of the front carrier 300, the difference is that the pressing cover 304 can be omitted in the rear carrier, and the pressing arm 302 only needs to be closed with the cover from above. When the top cover 203 on the bottom case 201 abuts, the pressure-maintaining positioning can be achieved. Of course, the rear carrier can also be simplified to omit the second profiling groove 303, so as to further optimize the structure.

Referring to FIG. 5 , the feeding device 400 includes a feeding conveyor belt 401, two lifting mechanisms 402, a front clamping mechanism 403 and a rear clamping mechanism 404. The feeding conveyor belt 401 is arranged in the front-rear direction, and passes the material provided on it. The tray (not shown in the figure) corresponds to the conveying bottom case 201, the PCBA board 202 or the top cover 203, and there are multiple clamping positions on the tray, so that it can carry multiple bottom cases 201, PCBA board 202 or top cover at a time 203, the two lifting mechanisms 402 are arranged on the bottom side of the front and rear opposite ends of the feeding conveyor belt 401 in a one-to-one correspondence, and the front clamping mechanism 403 and the rear clamping mechanism 404 are correspondingly arranged on the front and rear opposite ends of the feeding conveyor belt 401. top side. Wherein, the lifting mechanism 402 located at the opposite front end cooperates with the front clamping mechanism 403, and is used for stacking a stack of the bottom case 201, the PCBA board 202 or the top cover 203 that is stacked on the upper side of the feeding conveyor belt 401 and is fully loaded. The trays are placed on the feeding conveyor belt 401 one by one. The feeding conveyor belt 401 is used to transport the received trays in the direction from front to back. The lifting mechanism 402 at the opposite rear end cooperates with the rear clamping mechanism 404. After the bottom case 201 , the PCBA board 202 or the top cover 203 is removed, the empty tray is pushed upward and stacked on the upper side of the feeding conveyor belt 201 . Specifically, the jacking mechanism 402 includes a jacking suction cup 4021 and a jacking cylinder 4022 connected to the jacking suction cup 4021. The jacking cylinder 4022 is used to drive the lifting suction cup 4021 to move linearly in the up-down direction, so as to remove the stacked The bottom tray in the tray is adsorbed downward until it hangs down on the feeding conveyor belt 401 , or the empty tray is pushed upwards to be separated from the feeding conveyor belt 401 . The front clamping mechanism 403 includes at least two clamping members 4031 symmetrically arranged on the left and right opposite sides of the feeding conveyor belt 401 and a clamping cylinder 4032 correspondingly connected with the at least two clamping members 4031. The clamping cylinder 4032 is used for driving At least two clamping members 4031 move toward each other or move back to clamp the tray adjacent to the bottom tray, thereby facilitating the suction and transfer of the bottom tray by the lifting mechanism 402 . The rear clamping mechanism 404 includes at least two locking pieces 4041 symmetrically arranged on the left and right opposite sides of the feeding conveyor belt 401. The lifting mechanism 402 simultaneously rotates or expands to avoid under the action of the pushing force of the material tray, and automatically resets after the material tray is pushed in place, so as to clamp and position the material tray on the bottom layer, so as to realize the stacking of the material trays.

Below, the specific structure and working principle of each machine of the automatic assembly line 100 of the present invention will be described according to the working process of the entire production line:

Referring to FIG. 6 , the feeding machine 10 is used as the starting end of the entire production line, and is used for automatic feeding, laser coding, dust removal and shunt conveying of the bottom casing 201, and it includes upper The feeding device 400 and the feeding conveyor 12 , the front transfer device 13 erected on the upper side of the feeding device 400 and the feeding conveyor 12 , the alignment device arranged between the feeding device 400 and the feeding conveyor 12 14. The laser coding device 15 arranged on the side of the alignment device 14, the plasma cleaning device 16 and the sorting device 17 are sequentially erected on the upper side of the feeding conveyor 12 along the conveying direction of the feeding conveyor 12, Wherein, the feeding conveying device 12 includes a belt conveying mechanism 121 and a belt conveying mechanism 122 which are respectively arranged in the front-rear direction and have a certain interval. The feeding device 400 is also arranged in the front-rear direction, and is used to transfer the bottom case 201 carried in the feeding tray to a position where it is convenient for the front transfer device 13 to take the material. The front transfer device 13 travels back and forth between the feeding device 400 , the alignment device 14 and the feeding conveying device 12 , and is used to suck the bottom shells 201 in the tray to the alignment device 14 one by one. The alignment device 14 uses To adjust the position of the bottom case 201, it is not only convenient for the laser coding device 15 to carry out laser coding on the bottom case 201 from the side end, but also for the front transfer device 13 to accurately align and deliver the coded bottom case 201 to the belt. On the front carrier 300 of the transfer mechanism 121 . The belt conveying mechanism 121 is used for conveying the bottom case 201 carried on the front carrier 300 toward the front glue dispenser 20, and during the conveying process, the bottom case 201 is dedusted and cleaned by the plasma cleaning device 16, so as to effectively The accuracy of subsequent dispensing and assembly is improved, and the dust-removed bottom case 201 is detected and identified by the sorting device 17 , so that the unqualified bottom case 201 and the corresponding front carrier 300 are transferred by the belt conveying mechanism 121 . The bottom case 201 , which is qualified for coding and clean and dust-free, is clamped to the placement table 18 on the side of the belt conveying mechanism 122 , and the bottom case 201 is accurately positioned and transferred to the front glue dispenser 20 .

Referring to FIG. 7 , the front glue dispenser 20 is disposed at the output end of the feeder 10 for receiving the bottom case 201 conveyed by the feeder 10 , and for dispensing glue to the first dispensing area W1 of the bottom case 201 . It includes a front dispensing conveyor 21 , two dispensing devices 22 spaced apart from the front dispensing conveyor 21 along the front-rear direction, and a sorting device 23 erected at the output end of the front dispensing conveyor 21 and a poor dispensing carrier 24 located beside the front dispensing conveyor 21 , wherein the front dispensing conveyor 21 includes a belt conveyor mechanism 211 and a belt conveyor mechanism 212 that are respectively arranged in the front-rear direction and have a certain distance. The belt conveying mechanism 211 is used for receiving and conveying the front carrier 300 carrying the bottom case 201 , and the two dispensing devices 22 are used for moving relative to the belt conveying mechanism 211 for the front load positioned at the point of the belt conveying mechanism 211 . The bottom case 201 in the tool 300 is used for dispensing. At this time, only vertical dispensing is required to realize the dispensing operation of the first dispensing area W1. The sorting device 23 is used for dispensing the first dispensing area W1 after dispensing. The bottom case 201 is detected and identified, so as to clamp the unqualified bottom case 201 and the corresponding front carrier 300 to the unqualified dispensing platform 24, and the qualified bottom case 201 is positioned and transferred to the Front group pick-up 30.

Referring to FIG. 8 to FIG. 10 , the front assembly machine 30 is disposed at the output end of the front glue dispenser 20 , and is used to align the PCBA board 202 to the bottom case 201 after the glue is dispensed in the first glue dispensing area W1. , which includes a feeding device 400 and a conveying device 31 that are spaced apart along the left and right directions, a assembling device 32 erected on the upper side of the feeding device 400 and the conveying device 31 , and the feeding device 400 and the conveying device 32 The positioning device 33 between the 31 and the detection device 34 provided at the assembling device 32, wherein the conveying device 31 includes a belt conveying mechanism 311 and a belt conveying mechanism 312 arranged in the front-rear direction and having a certain distance respectively. The feeding device 400 is used for automatic feeding and positioning and conveying of the PCBA board 202 , and the belt conveying mechanism 311 is used for conveying the dispensing bottom case 201 positioned in the front carrier 300 and the bottom case 201 bonded with the PCBA board 202 . The assembling device 32 travels back and forth between the feeding device 400 , the positioning device 33 and the conveying device 31 , and is used to pick and place the PCBA board 202 on the feeding device 400 on the positioning device 33 for alignment adjustment, and then adjust the position of the PCBA board 202 on the feeding device 400 . The PCBA board 202 after the position is adhered to the bottom case 201 conveyed on the belt conveying mechanism 311, and the press cover 304 of the front carrier 300 is also covered with the top side end of the bottom case 201 adhered with the PCBA board 202, and The pressing arm 302 is driven to rotate or move to abut against the top side end of the pressing cover 304, so as to achieve pressure-holding positioning, so that the PCBA board 202 and the bottom case 201 will not be displaced during the transfer process, which not only effectively improves the assembly accuracy, And it is convenient for the effective curing of the glue between the two, so as to realize the firm assembly. The detection device 34 is used for identifying the three-dimensional coordinates of the PCBA board 202 and the bottom case 201 before assembly and identifying the assembly gap between the PCBA board 202 and the bottom case 201 after assembly, so as to realize accurate assembly. The detection device 34 includes a bottom camera 341 provided between the positioning device 33 and the belt conveyor mechanism 311 and a top camera 342 provided on the upper side of the belt conveyor mechanism 311 , and the bottom camera 341 is used to measure the coordinates of the PCBA board 202 . For identification, the top camera 342 is used to identify the coordinates of the bottom case 201 and the assembly gap between the PCBA board 202 and the bottom case 201 . Of course, the front assembly machine 30 also includes a sorting device 35 arranged at the output end of the conveying device 31. The sorting device 35 is used to detect and identify the assembled PCBA board 202 and the bottom case 201, so as to classify the unqualified products. Together with the corresponding front carriers 300 , they are clamped to the poorly assembled carrier 36 located on the side of the belt conveying mechanism 312 , and the qualified products are accurately positioned and transferred to the front curing machine 40 .

Referring to FIG. 9 , the assembling device 32 includes an assembling drive mechanism 321 , a material-receiving suction head 322 , a cap-taking suction head 323 and a pressure-holding jaw 324 connected to the output end of the assembling driving mechanism 321 , and the assembling driving mechanism 321 is used for Drive the reclaiming suction head 322, the cap-taking suction head 323 and the pressure-holding jaw 323 to reciprocate in a straight line along the front-rear direction, the up-down direction and the left-right direction, so that the reclaiming suction head 322 can suck the PCBA board 202 on the feeding device 400 After adjusting the position on the positioning device 33, it is assembled on the bottom case 201, so that the cap removal head 323 can suck the pressing cover 304 on the front carrier 300 and cover it with the bottom case assembled with the PCBA board 202. The top side end of 201 also enables the pressure-holding jaws 324 to rotate or move the press arm 302 of the front carrier 300 to abut against the top side end of the press cover 304 on the bottom case 201 . The pick-up suction head 322 picks up and places the PCBA board 202 through a plurality of vacuum suction cups 3221, and the positions of the plurality of vacuum suction cups 3221 and the four vertices of the first dispensing area W1 of the bottom case 201 are arranged in a one-to-one correspondence, thereby Efficient and secure pickup and delivery through multi-point adsorption. Preferably, the vacuum suction cups 3221 have a certain length, and the diameter of the suction holes is relatively small, so the suction surfaces formed by the plurality of vacuum suction cups 3221 are relatively far away from the main body of the reclaimer suction head 322, so as to facilitate the adhesion of the PCBA with many electronic components. The plate 202 is sucked and transferred.

Referring to FIG. 10 , specifically, in some embodiments, the cap removal suction head 323 includes a first vacuum suction cup 3231 and at least two second vacuum suction cups 3232 symmetrically arranged around the first vacuum suction cup 3231 . The suction cups 3231 cooperate with at least two second vacuum suction cups 3232 to suction the gland 304 from different positions, and the suction effect is better. The structures and sizes of the first vacuum suction cup 3231 and the second vacuum suction cup 3232 are basically the same. Of course, the diameter of the first vacuum suction cup 3231 can also be relatively large, while the diameter of the second vacuum suction cup 3232 is relatively small, which can also be safe And firmly pick and place the press cover 304 . Specifically, the cap removal suction head 323 further includes a lift motor 3233 connected to the output end of the assembly drive mechanism 321 and a mounting seat 3234 connected to the output end of the lift motor 3233 , and the first vacuum suction cup 3231 is arranged at the center of the mounting seat 3234 , at least two first vacuum suction cups 3231 are symmetrically arranged at opposite edges of the mounting seat 3234 with the first vacuum suction cup 3231 as the center, and the lift motor 3233 is used to drive the first vacuum suction cup 3231 and at least two second vacuum suction cups 3232 to move up and down , to pick and place the gland 304 .

It should be noted that, in some embodiments, the structure of the assembling device 32 can be further optimized, and the output end of the assembling drive mechanism 321 is only connected to the cap removal suction head 323 and the pressure maintaining jaw 324, and the assembling drive mechanism 321 only needs to drive the cap removal head 323 and the pressure-holding jaw 324 to reciprocate in a straight line along the front and rear, up and down, and left and right directions, and the cap removal head 323 sucks the upper PCBA board 202 onto the positioning device 33 for alignment and adjustment. It is assembled on the bottom case 201, and the pressing cover 304 is sucked and covered on the top side end of the bottom case 201 assembled with the PCBA board 202, and then the pressing arm 302 is rotated or moved by the pressure-holding jaw 323 to the same position as the pressing force. The top-side ends of the cover 304 abut against each other. In this structure, the structures and functions of the first vacuum suction cup 3231 and the second vacuum suction cup 3232 of the cap removal head 323 are different, and at least two second vacuum suction cups 3232 can be used to take and transport the PCBA board 202 independently, or , cooperates with the first vacuum suction cup 3231 to take and transport the PCBA board 202 together, so as to take and place the PCBA board 202 stably and firmly. The first vacuum suction cup 3231 can also move up and down relative to the second vacuum suction cup 3232 under the driving of the air cylinder 3235 connected to it, so as to transport the press cover 304 to the top end of the bottom case 201, and the first vacuum suction cup 3231 The diameter of the vacuum suction cup 3231 is relatively large, while the diameter of the second vacuum suction cup 3232 is relatively small, thereby effectively simplifying the structure and correspondingly reducing the manufacturing cost.

8, 11 to 15, the front curing machine 40 is arranged at the output end of the front assembly machine 30, and is used for curing the glue between the preliminary bonded PCBA board 202 and the bottom case 201, so as to realize the firmness of the two. Assembled to form a semi-finished product, which includes a tunnel furnace 41 , a cooling conveyor belt 42 and a return conveyor belt 43 that are spaced apart from the side of the tunnel furnace 41 . The tunnel furnace 41 is provided with a chain conveyor belt 411, which is used to dry and solidify the glue between the preliminarily bonded PCBA board 202 and the bottom shell 201 conveyed on the chain conveyor belt 411 according to the order of the incoming chain conveyor belts 411, and then cools them down. The input end of the conveyor belt 42 and the input end of the return conveyor belt 43 are arranged flush at the discharge port of the tunnel furnace 41 . The cooling conveyor belt 42 is used to receive the solidified semi-finished product conveyed by the tunnel furnace 41 , and direct the semi-finished product toward the rear. The direction of the glue dispenser 50 is conveyed, and the output end of the return conveyor belt 43 is connected to the output end of the front assembly machine 30 through the rear docking station 106, which is used for receiving and returning the empty front carrier 300 after the semi-finished product is removed. Preferably, a plurality of fans 421 are also provided on the cooling conveyor belt 42, so as to effectively cool the semi-finished product during the conveying process. In addition, the cooling conveyor belt 42 is arranged in a hook shape, and the output end of the cooling conveyor belt 42 can extend into the post-dispensing machine 50, so that the structure can be simplified, the length of the overall production line can be effectively shortened, and the manufacturing cost can be reduced. Effectively improve the cooling effect.

In some embodiments, a push-in device 500 and a push-out device 600 are further provided at the feeding port and the discharge port of the tunnel furnace 41, respectively, and a splitting device 700 is further provided between the push-out device 600 and the cooling conveyor 42 to push the The device 500 is used to push the front carriers 300 carrying the preliminarily bonded PCBA board 202 and the bottom case 201 into the tunnel furnace 41 in a row, and the tunnel furnace 41 transfers the front carriers 300 to the tunnel furnace 41 row by row according to the order of entry. At the push-out device 600, the push-out device 600 is used to transfer the front carriers 300 in rows one by one toward the direction of the split device 700, and the split device 700 is used to take out the semi-finished products from the corresponding front carriers 300 and transfer them to the corresponding cooling The input end of the conveyor belt 42 also transfers the empty front carrier 300 to the input end of the return conveyor belt 43 .

Specifically, the push-in device 500 includes a feeding table 501 which is connected to the output end of the belt conveying mechanism 311 of the front assembly machine 30 , a feeding member 502 erected on the input end of the feeding table 501 , and a feeding member 502 erected on the feeding table 501 . The pusher 503 at the output end of the 2000, and the receiving table 501 are arranged along the left and right direction, and have a certain length, and a limit bar is arranged on the table. The feeding member 502 moves left and right relative to the receiving table 501 under the driving of the air cylinder 504 connected to it, and sequentially loads the preliminarily bonded PCBA board 202 and the bottom case 201 received at the input end of the receiving table 501 . The tool 300 is pushed toward the output end of the receiving table 501, and the pusher 503 moves back and forth relative to the receiving table 501 under the driving force of the drive assembly 505 connected to it, so as to load the front load on the output end of the receiving table 501. The tools 300 are pushed to the chain conveyor 411 of the tunnel furnace 41 in a row, so as to realize the efficient feeding operation of the multiple front carriers 300 and effectively improve the curing efficiency.

Specifically, the push-out device 600 includes a feeding table 601 that is connected to the output end of the chain conveyor 411 of the tunnel furnace 41 , a feeding member 602 that is erected on the input end of the feeding table 601 , and is opposite to the output end of the feeding table 601 . The chain conveyor belt 603 and the splitting table 604 arranged at the output end of the chain conveyor belt 603, the material receiving table 601 is arranged along the left and right direction and has a certain length. Driven by the driving component 605 connected to it, the feeding member 602 moves linearly relative to the receiving table 601 in the up-down direction and the front-rear direction, and sequentially moves the front carrier carrying the semi-finished products received at the input end of the receiving table 601 300 is fed toward the direction of the output end of the receiving table 601, and the chain conveyor 603 is used to convey the front carriers 300 pushed onto it in a row from the side in the left-right direction, so that each front carrier 300 is conveyed one by one to the split. On the table 604, it is convenient for the splitting device 700 to complete the corresponding splitting operation.

Specifically, the splitting device 700 includes the upper side of the splitting table 604 , the cooling conveyor belt 42 and the return conveyor belt 43 , so as to travel back and forth between the three, for disassembling the front carrier on the splitting table 604 The press cover 304 of the 300 is removed from the semi-finished product, and the unpressurized semi-finished product is taken out from the front carrier 300 to be placed on the input end of the cooling conveyor 42, and the empty front carrier 300 after the semi-finished product is taken out is transferred by the split table 604. to the input of the return conveyor 43 . More specifically, the splitting device 700 includes splitting jaws 701, reclaiming jaws 702 and transfer jaws 703, which are spaced apart along the front and rear directions on the upper side of the splitting table 604. The splitting jaws 701 are used for In order to drive the pressing arm 302 to rotate to release the pressing against the pressing cover 304 covered on the top side end of the bottom case 201 , the picking jaw 702 is used to take the pressing cover 304 released from the pressing and place it on the front carrier 300 . In the second profiling groove 303 , the semi-finished product with the cover 304 removed is taken and placed on the cooling conveyor belt 42 . Further, the splitting device 700 also includes a drive mechanism 704 for driving the split jaws 701 to move up and down and rotate, and a drive mechanism 705 for driving the reclaiming jaws 702 and the transfer jaws 703 to move linearly in the front-rear, left-right and up-down directions.

3, 15 to 17, the rear glue dispenser 50 is provided at the output end of the front curing machine 40 for dispensing glue at the second glue dispensing area W2 of the bottom shell 201 of the semi-finished product, which includes a glue dispensing station 51. Two glue dispensing devices 52 arranged at intervals along the front and rear directions on the opposite right side of the glue dispensing table 51, a discharging device 53 arranged on the opposite left side of the glue dispensing table 51 in the front and rear direction, and a discharge device 53 erected on the glue dispensing table 51 and the transfer device 54 on the upper side of the discharge device 53 . Among them, the discharging device 53 includes a belt conveying mechanism 531 and a belt conveying mechanism 532 arranged in the front-rear direction with a certain distance, and the transfer device 54 transfers the semi-finished products conveyed by the cooling conveyor belt 42 to the dispensing table 51 through the feeding jaws. The glue dispensing table 51 is used to fix the received semi-finished product, and drives the semi-finished product to turn over at a certain angle, and also drives the turned semi-finished product to rotate horizontally, so as to cooperate with at least one of the two glue dispensing devices 52 moved to the glue dispensing table 51, In order to dispense glue to the second glue dispensing area W2 of the bottom shell 201, the transfer device 54 also removes the dispensed semi-finished product from the glue dispensing table 51 through the unloading jaw 542 and transfers it to the belt conveyor of the discharge device 53. on the mechanism 531 , so that the semi-finished product after dispensing is conveyed toward the direction of the rear assembly machine 60 .

16 and 17 , the dispensing table 51 is provided with a drive mechanism 511 and a positioning plate 512 connected to the output end of the drive mechanism 511 . The positioning plate 512 is used to receive and adsorb and fix the semi-finished product. The positioning plate 512 is driven by the overturning motor 5111 Flip down 45°, so that the bottom case 201 is rotated until the inner wall of its top side end is located at a position that is convenient for dispensing, and the bottom case 201 after flipping is driven by the rotating motor 5112. Dispensing work on the inner peripheral wall of the top side end. Wherein, the positioning plate 512 is provided with at least two placement slots 5121, and the shapes and sizes of the at least two placement slots 5121 may be inconsistent, so as to be suitable for placement of at least two different sizes of bottom shells 201, so there is no need to frequently Replacing the positioning plate 512 has stronger versatility and effectively improves the dispensing efficiency; of course, at least two bottom shells 201 of the same size can also be placed on the positioning plate 512 each time, thereby effectively improving the dispensing efficiency. It should be noted that the positioning plate 512 is also provided with vacuum suction nozzles 5122, and the vacuum suction nozzles 5122 can be arranged in each of the placement slots 5121 in a one-to-one correspondence, and are used to adsorb the bottom case 201 in each placement slot 5121. fixed. Specifically, in a preferred embodiment of the present application, the positioning plate 512 is provided with at least two placement slots 5121 with different heights and sizes formed by the depression of the top wall toward the bottom wall of the positioning plate 512, and at least two The mounting slots 5121 are arranged concentrically with the center of the positioning plate 512 as the center, so as to further optimize the structure and effectively reduce the volume of the positioning plate 512 . Wherein, the vacuum suction nozzles 5122 can be arranged at the center of the positioning plate 512, and each of the placement slots 5121 can share a vacuum suction nozzle 5122, thereby further optimizing the structure. Of course, when the size of the bottom case 201 is large, and the top surface of the positioning plate 512 can also be used as a bearing surface, the bottom case 201 is directly placed on the top surface of the positioning plate 512. At this time, at least two vacuum suction nozzles 5122 can be evenly distributed in The semi-finished product is adsorbed and fixed by positioning the peripheral side of the top end surface of the platen 512 .

Referring to FIG. 18 , the rear assembly machine 60 is disposed at the output end of the rear glue dispenser 50, and is used to align the top cover 203 to the bottom shell 201 after the glue has been dispensed in the second glue dispensing area W2. The feeding device 400 and the rear conveying device 61 are arranged at intervals in the left-right direction, the assembling device 62 is erected on the upper side of the feeding device 400 and the rear conveying device 61 , and the dividing device provided at the output end of the rear conveying device 61 The picking device 63 , the positioning device (not shown in the figure) located between the feeding device 400 and the rear conveyor 61 , the detection device 64 located at the assembling device 62 , and the detection device 64 located on the side of the rear conveyor 61 . In the defective product stage 65 , the detection device 64 includes a bottom camera 641 and a top camera 642 . The structure and working principle of the rear assembly machine 60 are basically the same as those of the front assembly machine 30. The main difference is that because the pressing cover 304 is not required, the pressing arm 302 is directly in contact with the top cover 203, so the assembling device 62 The structure can be simplified accordingly, and will not be described in detail here.

3, 18 and 19, the post-curing machine 70 is arranged at the output end of the post-assembly machine 60 to cure the glue between the preliminary bonded top cover 203 and the semi-finished product, which includes a tunnel furnace 71, a spacer The cooling conveyor belt 72 and the return conveyor belt 73 are arranged on the side of the tunnel furnace 71 , the push-in device 500 and the push-out device 600 are arranged at the inlet and outlet of the tunnel furnace 71 , and the output of the push-out device 600 is arranged. End split device 700. The structures and working principles of the tunnel furnace 71 , the cooling conveyor belt 72 and the return conveyor belt 73 are basically the same as those of the front curing machine 40 . The pressing arm 302 of the rear carrier needs to be driven to rotate, and the pressure-holding positioning can be released, so that the finished product is taken out from the corresponding rear carrier and transferred to the input end of the cooling conveyor belt 72, and the empty rear carrier is transferred to the return conveyor belt. 73 input.

Referring to FIG. 19 , the unloading machine 80 is arranged at the output end of the post-curing machine 70 for detecting the finished product and conveying the unloading material, which includes the unloading and transferring device 81 , the shaping table 82 and the loading device arranged in sequence along the left and right directions. The device 400 and the unloading and transferring device 81 are used to detect and identify the finished products conveyed by the cooling conveyor belt 72, transfer the unqualified products to the defective product placement table, and transfer the qualified products to the shaping table 82 for alignment adjustment, It is then transferred to the tray of the feeding device 400 . It should be noted that, in this machine, the feeding device 400 places the stacked empty trays on the feeding conveyor belt 401 in turn, receives the finished product at the relative center position, and outputs the tray to the feeding conveyor belt 401 when the tray is full. Transfer in the direction of the end, and stack the trays full of finished products on the upper side of the output end.

Compared with the prior art, the automatic assembly production line 100 of the present invention includes a front-end assembly line 100a formed by sequentially docking the feeder 10, the front glue dispenser 20, the front assembly machine 30 and the front curing machine 40. The rear glue dispenser 50, the rear assembly machine 60 and the rear curing machine 70 are connected in sequence at the output end of the front curing machine 40 to form the rear assembly line 100b, and the bottom case 201 of the vehicle-mounted IMU and the PCBA board are realized through the front assembly line 100a Dispensing, assembling and curing between 202 to form an automated assembly line of semi-finished products, through the rear-end assembly line 100b docking with the front-end assembly line 100a to realize the dispensing and assembly between the top cover 203 of the vehicle-mounted IMU and the bottom shell 201 of the semi-finished product and curing to form a finished product, the whole assembly efficiency is high, the assembly precision is high and efficient; and the bottom case 201 is fixed by the front carrier 300 that is recycled in the front assembly line 100a, thereby further improving the dispensing Accuracy and assembly accuracy between the PCBA board 202 and the bottom case 201, and the preliminarily bonded PCBA board 202 and the bottom case 201 are pressure-maintained and positioned through the front carrier 300 to effectively prevent the two from shifting during the glue curing process, and then The curing accuracy is improved, and curing is carried out during the transfer process, which effectively improves the curing efficiency, and the semi-finished product is fixed by the rear carrier that is recycled in the rear assembly line 100b, thereby further improving the dispensing accuracy and the top cover 203 and the semi-finished product. The assembly accuracy between the bottom shells 201, and the preliminarily bonded top cover 203 and the semi-finished product are maintained and positioned by the rear carrier to effectively prevent the two from shifting during the glue curing process, thereby improving the curing accuracy, and during the transfer process. Curing is carried out to effectively improve the curing efficiency, and also effectively improve the use efficiency of the front and rear carriers through recycling; Carry out assembly inspection and classification and blanking, so as to effectively ensure the quality of the assembled in-vehicle IMU, and further improve the assembly efficiency through automatic blanking.

The above disclosures are only the preferred embodiments of the present invention, which of course cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope of the present invention.

Claims (10)

1. An automatic assembly production line is used for assembling a bottom shell, a PCBA plate and a top cover of a vehicle-mounted IMU, wherein a first glue dispensing area and a second glue dispensing area are respectively arranged on the inner wall of the opposite bottom and the inner wall of the opposite top of the bottom shell, and the automatic assembly production line is characterized by comprising a feeding machine, a front glue dispensing machine, a front assembling machine and a front curing machine which are sequentially butted to form a front section assembly line, and a rear glue dispensing machine, a rear assembling machine and a rear curing machine which are sequentially butted to form a rear section assembly line at the output end of the front curing machine, wherein the feeding machine is used for feeding, coding, cleaning and conveying the bottom shell after glue dispensing of the first glue dispensing area of the bottom shell, the front assembling machine is used for feeding the PCBA plate, para-bonding with the bottom shell and conveying of the bottom shell with the PCBA plate, and the front curing machine is used for curing glue between the bottom shell and the PCBA plate to form a semi-finished product and conveying the semi-finished product, the rear dispensing machine is used for dispensing glue in a second dispensing area of the bottom shell of the semi-finished product and conveying the semi-finished product after dispensing, the rear assembling machine is used for feeding the top cover, aligning and bonding the top cover with the bottom shell of the semi-finished product and conveying the semi-finished product bonded with the top cover, the post-curing machine is used for curing glue between the top cover and the semi-finished product to form a finished product and transmitting the finished product, a front carrier used for fixing the bottom shell and performing pressure maintaining and positioning on the PCBA plate and the bottom shell which are preliminarily bonded is recycled in the front section assembly line, and a rear carrier used for fixing the semi-finished product and performing pressure maintaining and positioning on the top cover and the semi-finished product which are preliminarily bonded is recycled in the rear section assembly line, and the output end of the post-curing machine is also provided with a blanking machine for carrying out assembly detection and classified blanking on the finished products.

2. The automatic assembly line of claim 1, wherein the automatic assembly line has a front conveyor line, a front return line disposed beside the front conveyor line, a rear conveyor line, and a rear return line disposed beside the rear conveyor line, the front conveyor line and the front return line are inserted into the front section assembly line in a direction opposite to a conveying direction of the front return line, the front carrier is circularly conveyed in the front conveyor line and the front return line, the rear conveyor line and the rear return line are inserted into the rear section assembly line in a direction opposite to a conveying direction of the rear return line, and the rear carrier is circularly conveyed in the rear conveyor line and the rear return line.

3. The automatic assembly line according to claim 2, wherein front docking stations are respectively disposed at input ends of the feeding machine and the rear dispenser, rear docking stations are respectively disposed at output ends of the front assembling machine and the rear assembling machine, the front docking stations are used for pushing the front carrier empty at the output end of the front reflow line into the feeding machine or pushing the rear carrier empty at the output end of the rear reflow line into the rear dispenser, and the rear docking stations are used for pushing the front carrier empty at the input end of the front reflow line into the front assembling machine or pushing the rear carrier empty at the input end of the rear reflow line into the rear assembling machine.

4. The automatic assembly line of claim 1, wherein each of the front carrier and the rear carrier has a first contour groove and a pressing arm disposed beside the first contour groove, the first contour groove is used for placing the bottom case, the first contour groove has at least two placement positions with different areas disposed along a groove depth direction, the front carrier further has a second contour groove disposed on the other side of the pressing arm and a pressing cover disposed in the second contour groove, the pressing cover is used for covering a top side end of the bottom case to abut against the PCBA primarily adhered to the bottom case, and the pressing arm is arranged in a liftable and rotatable manner and is used for abutting against a pressing cover or a top cover covering the bottom case from above.

5. The automatic assembly line of claim 1, wherein the feeder, the first assembly machine and the second assembly machine are each provided with a feeding device, the feeding device comprises a feeding conveyor belt, two jacking mechanisms correspondingly arranged at bottom sides of front and rear opposite ends of the feeding conveyor belt, and a front clamping mechanism and a rear clamping mechanism correspondingly arranged at top sides of the front and rear opposite ends of the feeding conveyor belt, the jacking mechanisms at opposite front ends are matched with the front clamping mechanism for dropping one tray, which is stacked on the upper side of the feeding conveyor belt and is full of the bottom shell, the PCBA plate or the top cover, one by one onto the feeding conveyor belt, the feeding conveyor belt is used for conveying the received tray in a front-to-rear direction, and the jacking mechanisms at opposite rear ends are matched with the rear clamping mechanism, the empty tray is pushed upwards to be stacked above the feeding conveyor belt after the bottom shell, the PCBA plate or the top cover is taken away.

6. The automatic assembly line of claim 1, wherein two dispensing devices are disposed in each of the front dispensing machine and the rear dispensing machine, the respective two dispensing devices can dispense different glues, the rear dispensing machine is configured to turn the semi-finished product by a certain angle, so that the semi-finished product is located at a position convenient for dispensing by the dispensing devices, and the turned semi-finished product is further driven to rotate around the dispensing devices during dispensing.

7. The automated assembly line of claim 1, wherein the pre-curing machine and the post-curing machine each have a tunnel oven, a cooling conveyor belt and a return conveyor belt arranged in spaced apart relation alongside the tunnel oven, the input ends of the cooling conveyor belt and the reflux conveyor belt are arranged at the discharge port of the tunnel furnace in a flush manner, the output end of the cooling conveyor belt extends into the rear glue dispenser or the blanking machine, the cooling conveyor belt is arranged in a hook shape, used for carrying and conveying the cured semi-finished products or finished products, and the semi-finished products or finished products are cooled by a fan in the conveying process, the output end of the backflow conveyor belt is butted with the output end of the front assembling machine or the rear assembling machine, and the reflow transmission is used for the reflow transmission of the empty front carrier or the empty rear carrier after the semi-finished products or the finished products are taken away.

8. The automatic assembly line of claim 7, wherein a pushing device and a pushing device are respectively disposed at the inlet and the outlet of the tunnel furnace, a separating device is further disposed between the pushing device and the cooling conveyor, the pushing device is used for pushing the front carrier with the PCBA board and the bottom case or the rear carrier with the top cover and the semi-finished product into the corresponding tunnel furnace in rows, the tunnel furnace is used for conveying the front carrier or the rear carrier to the pushing device in rows according to the sequence of the front carrier or the rear carrier, the pushing device is used for conveying the rows of the front carrier or the rear carrier one by one towards the separating device, the separating device is used for taking out the semi-finished product or the finished product from the corresponding front carrier or the rear carrier and transferring the semi-finished product to the input end of the corresponding cooling conveyor, and the empty front carrier or the empty rear carrier is also transferred to the input end of the corresponding reflow transmission belt.

9. The automatic assembly line according to claim 1, wherein the front assembling machine comprises a feeding device and a conveying device arranged at intervals in the left-right direction, an assembling device erected at the upper side of the feeding device and the conveying device, an assembling device arranged between the feeding device and the conveying device, and a detecting device arranged at the assembling device, the feeding device is used for feeding and conveying PCBA boards, the conveying device passes through a bottom shell with glue coated on a conveying point of the front carrier and the bottom shell with the PCBA boards adhered thereon, the front carrier is provided with a gland and a pressure arm for performing pressure maintaining and positioning on the PCBA boards and the bottom shell which are primarily adhered, the assembling device moves between the feeding device, the positioning device and the conveying device to and fro, and is used for taking the PCBA boards on the feeding device onto the positioning device for alignment adjustment, and adhering the aligned PCBA plate to the bottom shell, covering the pressing cover of the carrier on the top side end of the bottom shell assembled with the PCBA plate by the assembling device, driving the pressing arm to rotate or move to abut against the top side end of the pressing cover, and identifying the three-dimensional coordinates of the PCBA plate and the bottom shell before assembly and the assembling gap between the PCBA plate and the bottom shell after assembly by the detection device.

10. The automatic assembly line of claim 1, wherein the rear dispensing machine comprises a dispensing table, two dispensing devices spaced apart from each other along a front-rear direction on a right side of the dispensing table, a discharge conveyor disposed along a front-rear direction on a left side of the dispensing table, and a transfer device mounted on a top side of the dispensing table and the discharge conveyor, the transfer device transferring the semi-finished product to the dispensing table via a feeding clamping jaw, the dispensing table fixing the received semi-finished product and driving the semi-finished product to turn over by a certain angle, and driving the turned semi-finished product to rotate horizontally so as to match with at least one of the two dispensing devices moving to the dispensing table to complete dispensing of the second dispensing area of the bottom case of the semi-finished product, and the transfer device taking down the dispensed semi-finished product from the dispensing table via a discharging clamping jaw and transferring the dispensed semi-finished product to the discharge table And on the material conveying device, the bottom shell subjected to glue dispensing is conveyed by the material discharging conveying device to discharge.

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