CN114986151A

CN114986151A - Automatic assembly production line

Info

Publication number: CN114986151A
Application number: CN202210695771.1A
Authority: CN
Inventors: 陈灿华; 孙金锁; 聂忠方; 罗小红; 杨泽彬; 曹才文; 杨梦涛; 李海森
Original assignee: World Precision Manufacturing Dongguan Co Ltd
Current assignee: World Precision Manufacturing Dongguan Co Ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-09-02

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 production line

Technical Field

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

Background

Many electronic products, such as mobile phones, computers, smartwatches, sensors, and the like, are widely used in daily life and work of people, and most of the electronic products include a housing, and electronic components and mechanical parts accommodated in the housing. Along with the rapid development of science and technology, the trend of miniaturization of electronic products is obvious, and electronic parts are developed towards high-density integration and hyperfine, so that how to realize efficient and accurately-positioned assembly and effective solidification is a problem to be mainly solved when the electronic products are assembled. For example, in the process of assembling a more precise and sensitive vehicle-mounted IMU, it is necessary to apply glue to the bottom case first, and efficiently and accurately connect the PCBA board to the bottom case in a precise alignment within a limited time, especially to ensure that the assembly gap between the PCBA board and the peripheral wall of the bottom case must be within a specified numerical range, and the assembly gap is very small, for example, only 0.5mm, the requirement for the assembly operation is higher, and after the glue is applied, the glue between the PCBA board and the peripheral wall of the bottom case needs to be cured, so that after the two are firmly assembled, the bottom case needs to be glued again, so as to quickly and accurately bond the top cover to the bottom case, thereby the main body of the PCBA board is encapsulated in the space defined by the bottom case and the top cover, and after the assembly, the glue needs to be cured again to achieve the firm assembly.

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

Disclosure of Invention

The invention aims to provide an automatic assembly production line which is reasonable in layout, high in dispensing and assembling precision, good in curing effect and high in efficiency.

In order to achieve the purpose, the invention discloses an automatic assembly production line which is used for assembling a bottom shell, a PCBA (printed circuit board assembly) plate and a top cover of a vehicle-mounted IMU (internal plastic unit), wherein a first dispensing area and a second 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, the automatic assembly production line 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, and 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, the feeding machine is used for feeding, coding, cleaning and conveying the bottom shell, the front dispensing machine is used for dispensing glue in the first dispensing area of the bottom shell and conveying the bottom shell after dispensing, the front assembling machine is used for feeding the PCBA plate, aligning with the bottom shell and conveying the bottom shell with the PCBA plate bonded, and the front solidifying machine is used for solidifying the bottom shell and the PCBA glue between the bottom shell to form a semi-finished product and conveying the semi-finished product The back 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 used for carrying out assembly detection and classified blanking on the finished products.

Preferably, the automatic assembly line has a front conveyor line, a front return line arranged beside the front conveyor line, a rear conveyor line and a rear return line arranged beside the rear conveyor line, the front conveyor line and the front return line are arranged in the front section assembly line in a penetrating manner 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 arranged in the rear section assembly line in a penetrating manner 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.

Preferably, the input ends of the feeding machine and the rear glue dispenser are respectively provided with a front docking station, the output ends of the front assembling machine and the rear assembling machine are respectively provided with a rear docking station, the front docking station is used for pushing the empty front carrier at the output end of the front return wire into the feeding machine or pushing the empty rear carrier at the output end of the rear return wire into the rear glue dispenser, and the rear docking station is used for pushing the empty front carrier at the input end of the front return wire into the front assembling machine or pushing the empty rear carrier at the input end of the rear return wire into the rear assembling machine.

Preferably, the front carrier and the rear carrier are each provided with a first contour groove and a pressing arm arranged beside the first contour groove, the first contour groove is used for placing the bottom case, the first contour groove is provided with at least two placing clamping positions with different areas arranged along the groove depth direction, the front carrier is further provided with a second contour groove positioned on the other side of the pressing arm and a pressing cover arranged in the second contour groove, the pressing cover is used for covering the top side end of the bottom case to abut against the PCBA board preliminarily adhered in the bottom case, and the pressing arm is arranged in a lifting and rotating manner and is used for abutting against the pressing cover or the top cover covered on the bottom case from above.

Preferably, the feeder, the first assembling machine and the second assembling machine are each provided with a feeding device, the feeding device includes a feeding conveyor belt, two jacking mechanisms disposed on bottom sides of front and rear opposite ends of the feeding conveyor belt in a one-to-one correspondence manner, and a front clamping mechanism and a rear clamping mechanism disposed on top sides of the front and rear opposite ends of the feeding conveyor belt in a corresponding manner, the jacking mechanism and the front clamping mechanism at the opposite front end cooperate to drop a stack of trays stacked on an upper side of the feeding conveyor belt and fully loaded with the bottom shell, the PCBA plate or the top cover one by one onto the feeding conveyor belt, the feeding conveyor belt is configured to convey the received trays in a front-to-rear direction, and the jacking mechanism at the opposite rear end cooperates with the rear clamping mechanism to convey the bottom shell, After the PCBA or the top cover is taken away, the empty tray is pushed upwards to be stacked above the feeding conveyor belt.

Preferably, two glue dispensing devices are arranged in the front glue dispensing machine and the rear glue dispensing machine, glue dispensed by the two glue dispensing devices can be different, the rear glue dispensing machine is used for driving the semi-finished product to turn over for a certain angle, so that the semi-finished product is located at a position where the glue dispensing device can dispense glue, and the turned semi-finished product is driven to rotate around the glue dispensing device in a glue dispensing process.

Preferably, the front curing machine and the rear curing machine are respectively provided with a tunnel furnace, and a cooling conveyor belt and a backflow conveyor belt which are arranged at the side of the tunnel furnace at intervals, the input ends of the cooling conveyor belt and the backflow conveyor belt are arranged at the discharge outlet of the tunnel furnace in a flush manner, the output end of the cooling conveyor belt extends into the rear dispensing machine or the blanking machine, the cooling conveyor belts are arranged in a bent hook shape and used for carrying and conveying the cured semi-finished products or the cured finished products, the semi-finished products or the finished products are cooled by a fan in the conveying process, and the output end of the backflow conveyor belt is in butt joint with the output end of the front assembling machine or the rear assembling machine and used for backflow conveying of the semi-finished products or the finished products for taking the empty front carrier or the rear carrier away.

Preferably, a pushing device and a pushing device are respectively arranged at the feed inlet and the discharge outlet of the tunnel furnace, a separating device is arranged between the pushing device and the cooling conveyor belt, the pushing device is used for pushing the front carriers carrying the PCBA plates and the bottom shells which are preliminarily bonded or the rear carriers carrying the top covers and the semi-finished products which are preliminarily bonded into the corresponding tunnel furnaces in rows, the tunnel furnace conveys the front carriers or the rear carriers to the pushing-out device row by row according to the entering sequence, the pushing device is used for conveying the rows of front carriers or rear carriers one by one towards the direction of the splitting device, the splitting device is used for taking out the semi-finished products or the finished products from the corresponding front carriers or the corresponding rear carriers and transferring the semi-finished products or the finished products to the input ends of the corresponding cooling conveyor belts, and also transferring the empty front carriers or the empty rear carriers to the input ends of the corresponding reflow conveyor belts.

Preferably, the front assembling machine comprises a feeding device and a conveying device which are arranged at intervals in the left-right direction, an assembling device erected on 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 conveys a bottom shell coated with glue through the front carrier and the bottom shell bonded with the PCBA boards, a pressing cover and a pressing arm for performing pressure maintaining and positioning on the PCBA boards and the bottom shell which are preliminarily bonded are arranged on the front carrier, the assembling device moves back and forth among the feeding device, the positioning device and the conveying device and is used for taking and placing 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.

Preferably, the rear dispensing machine includes a dispensing table, two dispensing devices spaced apart from each other in the front-rear direction on the right side of the dispensing table, a discharge conveyor spaced apart from each other in the front-rear direction on the left side of the dispensing table, and a transfer device mounted on the upper sides of the dispensing table and the discharge conveyor, the transfer device transfers the semi-finished product to the dispensing table through a feeding clamping jaw, the dispensing table is configured to fix the received semi-finished product and to turn the semi-finished product over a certain angle, and further to drive 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, thereby completing dispensing of the second dispensing area of the bottom case of the semi-finished product, and the transfer device further takes down the dispensed semi-finished product from the dispensing table through a discharging clamping jaw and transfers the dispensed semi-finished product to the discharge conveyor, and the bottom shell subjected to dispensing is conveyed by the discharge conveying device to discharge.

Compared with the prior art, the automatic assembly production line realizes the automatic flow operation of dispensing, assembling and curing between the bottom shell and the PCBA plate of the vehicle-mounted IMU through the front-section assembly line to form a semi-finished product, and realizes the automatic flow operation of dispensing, assembling and curing between the top cover and the bottom shell of the vehicle-mounted IMU through the rear-section assembly line butted with the front-section assembly line to form a finished product, so that the whole assembly efficiency is high, and the assembly precision is high and efficient; the bottom shell is fixed by the front carrier which is recycled in the front-section assembly line, so that the dispensing precision and the assembly precision between the PCBA and the bottom shell are further improved, the PCBA and the bottom shell which are primarily bonded are subjected to pressure maintaining positioning by the front carrier, the PCBA and the bottom shell are effectively prevented from shifting in the glue curing process, the curing precision is further improved, the curing efficiency is effectively improved, the semi-finished product is fixed by the rear carrier which is recycled in the rear-section assembly line, so that the dispensing precision and the assembly precision between the top cover and the semi-finished product are further improved, the top cover and the semi-finished product which are primarily bonded are subjected to pressure maintaining positioning by the rear carrier, the top cover and the semi-finished product are effectively prevented from shifting in the glue curing process, the curing precision is further improved, the curing efficiency is effectively improved, and the use efficiency of the two carriers is effectively improved by recycling; in addition, the automatic assembly production line disclosed by the invention also carries out assembly detection and classified blanking on finished products through the blanking machine arranged at the output end of the post-curing machine, so that the quality of the assembled vehicle-mounted IMU is effectively ensured, and the assembly efficiency is further improved through automatic blanking.

Drawings

Fig. 1 is a perspective view of an electronic product according to the present invention.

Fig. 2 is an exploded structural view of the electronic product of the present invention.

FIG. 3 is a plan view of the automated 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 view of the loading 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 dispenser of the present invention.

Fig. 8 is a plan view of the front assembling machine of the present invention.

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

FIG. 10 is a perspective view of the capping nozzle of the present invention.

Fig. 11 is a perspective view of a front curing machine of the present invention.

Fig. 12 is a perspective view of an angle of the pushing device of the present invention.

Fig. 13 is a perspective view of the pushing device of the present invention at another angle.

Fig. 14 is a perspective view of the ejector and the separation device according to the present invention.

Fig. 15 is a plan view of the rear dispenser of the present invention.

Fig. 16 is a perspective view of the dispensing table of the present invention.

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

Fig. 18 is a plan view of the rear assembling machine of the present invention.

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

Detailed Description

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

Referring to fig. 1 and 2, the present invention relates to assembly of an electronic product 200, and more particularly, to an electronic product that is fixed by glue during the assembly process, and in the present application, the electronic product 200 includes but is not limited to a mobile phone, a computer, a smart watch, a vehicle-mounted IMU, and the like. Specifically, the electronic product 200 disclosed in the preferred embodiment of the present invention is a vehicle-mounted IMU, which is substantially square, and specifically includes a bottom case 201, a PCBA board 202 housed in the bottom case 201, and a top cover 203 assembled on a top side end of the bottom case 201, wherein a main body of the PCBA board 202 is enclosed in a housing 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 material, the PCBA board 202 is adhered to the bottom case 201 only by glue dispensed on the first dispensing area W1 of the inner wall of the bottom case 201, and has an assembly gap of 0.5mm with the side wall of the bottom case 201, so that the PCBA board is not in contact with the bottom case, the first dispensing area W1 is specifically the position corresponding to the four vertices of the inner wall of the bottom case 201, and the top cover 203 is adhered to the bottom case 201 by glue dispensed on the second dispensing area W2 of the inner wall of the top case 201, and has an assembly gap of 0.1mm with the top side end of the PCBA board 202. Specifically, the second dispensing area W2 is arranged along the circumference of the opposite top inner wall of the bottom case 201, such that the top cover 203 is entirely received in the top end of the bottom case 201, i.e., the top cover 203 is flush with the top end surfaces of the bottom case 201, and more specifically, the inner circumferential wall of the top end of the bottom case 201 has a relatively narrow and small catch stand on which the second dispensing area W2 is arranged.

Referring to fig. 3 and 4, the present invention discloses an automatic assembly line 100 for assembling a bottom case 201, a PCBA board 202 and a top cover 203 of a vehicle-mounted IMU, and specifically, the automatic assembly line 100 according to the preferred embodiment of the present invention includes: the feeding machine 10, the front glue dispenser 20, the front assembling machine 30 and the front curing machine 40 are sequentially butted to form a front section assembly line 100a, the rear glue dispenser 50, the rear assembling machine 60 and the rear curing machine 70 are sequentially butted at the output end of the front curing machine 40 to form a rear section assembly line 100b, and the blanking machine 80 is connected to the output end of the rear curing machine 70. The feeding machine 10 is used for feeding, coding, cleaning and conveying the bottom case 201, the front glue dispenser 20 is used for dispensing glue in the first glue dispensing area W1 of the bottom case 201 and conveying the bottom case 201 after dispensing, the front assembling machine 30 is used for feeding the PCBA board 202, aligning and bonding the PCBA board 202 and the bottom case 201 and conveying the bottom case 201 bonded with the PCBA board 202, and the front curing machine 40 is used for curing the glue between the bottom case 201 and the PCBA board 202 to form a semi-finished product and conveying the semi-finished product. The rear dispensing machine 50 is used for dispensing glue in a second dispensing area W2 of the bottom shell 201 of the semi-finished product and conveying the dispensed semi-finished product, the rear assembling machine 60 is used for feeding the top cover 203, aligning and bonding the top cover 203 with the bottom shell 201 of the semi-finished product and conveying the semi-finished product bonded with the top cover 203, the rear 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 conveying the finished product, and the blanking machine 80 is used for assembling, detecting and classifying and blanking the finished product. The front carrier 300 for fixing the bottom case 201 and performing pressure-maintaining positioning on the PCBA board 202 and the bottom case 201 which are preliminarily bonded is recycled in the front-stage assembly line 100a, and the rear carrier for fixing the semi-finished product and performing pressure-maintaining positioning on the top cover 203 and the semi-finished product which are preliminarily bonded is recycled in the rear-stage assembly line 100 b. It should be noted that the machines in the automatic assembly line 100 of the present invention are arranged in a straight line, and in order to more clearly show the connection between the machines, the front assembly line 100a and the rear assembly line 100b are shown in fig. 3 by being separated.

In the automatic assembly line 100 of the present invention, in order to simplify the structure and reduce the manufacturing cost, on the one hand, the feeding devices 400 are provided in the feeder 10, the front assembling machine 30, and the rear assembling machine 60, so that the bottom chassis 201, the PCBA board 202, and the top cover 203 are automatically fed by the respective feeding devices 400. On the other hand, the front dispenser 20 and the rear dispenser 50 are both provided with two dispensing devices, and the glue dispensed by the respective two dispensing devices can be different, so that uninterrupted dispensing can be realized, the assembly efficiency can be effectively improved, and the dispensing device is suitable for dispensing different products, and the adaptability of the whole production line can be effectively improved. The rear dispenser 50 may drive the semi-finished product to turn over by a certain angle to be located at a position convenient for dispensing by the dispensing device, and further drive the semi-finished product to rotate around the dispensing device during dispensing, so as to dispense the inner peripheral wall of the bottom case 201 efficiently and conveniently. Furthermore, the front curing machine 40 and the rear curing machine 70 both cure the glue through the tunnel furnace, and after cooling the cured semi-finished product and the cured finished product, the subsequent assembly of the top cover 203 and the blanking of the finished product are performed. It should be noted that the automatic assembly line 100 of the present invention further includes a control system, which is respectively connected to the feeding machine 10, the front dispenser 20, the front assembling machine 30, the front curing machine 40, the rear dispenser 50, the rear assembling machine 60, the rear curing machine 70 and the blanking machine 80, and is used for sending various motion commands and controlling the coordination between the machines connected thereto, wherein the control system is an existing control system, and the structure and control principle thereof are well known in the art, and therefore, the detailed description thereof is omitted here. In the present application, the front-back direction, the left-right direction, and the up-down direction correspond to the conveying direction of the entire production line, the direction perpendicular to the conveying direction of the production line, and the direction perpendicular to both the front-back direction and the left-right direction, respectively.

The following describes a general structure or a main transmission structure of each machine with reference to fig. 3 to 6 and 8:

referring to fig. 3, the whole production line includes a front conveyor line 101 disposed in the front-rear direction, a front return line 102 disposed on the side of the front conveyor line 101, a rear conveyor line 103, and a rear return line 104 disposed on the side of the rear conveyor line 103, wherein the front conveyor line 101 is disposed through the front assembly line 100a in the direction opposite to the conveying direction of the front return line 102, and is used for conveying the front carrier 300 carrying the bottom case 201 and the bottom case 201 adhered with the PCBA board 202 and for conveying the empty front carrier 300, respectively, and the rear conveyor line 103 is disposed through the rear assembly line 100b in the direction opposite to the conveying direction of the rear return line 104, and is used for conveying the rear carrier carrying the semi-finished product and the semi-finished product adhered with the top cover 203 and for conveying the empty rear carrier. Wherein, the corresponding belt conveying mechanism 121, belt conveying mechanism 211, belt conveying mechanism 311 and cooling conveying belt 42 in the feeding machine 10, the front dispenser 20, the front assembling machine 30 and the front curing machine 40 are sequentially butted to form a front conveying line 101, and the corresponding belt conveying mechanism 511, belt conveying mechanism 621 and cooling conveying belt 72 in the rear dispenser 50, the rear assembling machine 60 and the rear curing machine 70 are sequentially butted to form a rear conveying line 103; the corresponding

belt transport mechanisms

122, 212, 312 and 43 of the feeder 10, the front dispenser 20, the front assembling machine 30 and the front curing machine 40 are sequentially butted to form a front return line 102, and the corresponding

belt transport mechanisms

512, 622 and 73 of the rear dispenser 50, the rear assembling machine 60 and the rear curing machine 70 are sequentially butted to form a rear return line 104.

With reference to fig. 3, 6, 8, 12 and 13, in order to facilitate recycling of the front carrier 300 and the rear carrier, the front docking stations 105 are respectively disposed at the input ends of the feeding machine 10 and the rear dispenser 50, and the rear docking stations 106 are respectively disposed at the output ends of the front assembling machine 30 and the rear assembling machine 60. The front docking station 105 is used for pushing the empty front carrier 300 at the output end of the front reflow line 102 into the feeder 10, or pushing the empty rear carrier at the output end of the rear reflow line 104 into the rear dispenser 50 for carrying the bottom case 201 or the semi-finished product; the rear docking station 106 is used to push empty front carriers 300 at the input end of the front reflow line 102 back into the front assembly machine 30 or to push empty rear carriers at the input end of the rear reflow line 104 back into the rear assembly machine 60, i.e. to transport the empty front carriers 300 or rear carriers after picking in the direction opposite to the transport direction of the entire production line. Specifically, as shown in fig. 6, the front docking station 105 includes a front loading station 1051, a front guide plate 1052 movably disposed on the front loading station 1051 in the left-right direction, and a front material plate 1053 movably disposed on the front loading station 1051 in the front-back direction, the front loading station 1051 is configured to receive the empty front carrier 300 or rear carrier at the output end of the belt conveying mechanism 122 or the belt conveying mechanism 512, the front guide plate 1052 is linearly moved in the left-right direction by the driving of a linear cylinder 1054 connected to the front guide plate 1052 to push the received empty front carrier 300 or rear carrier to a position opposite to the input end of the belt conveying mechanism 121 or the belt conveying mechanism 511, and the front material plate 1053 is linearly moved in the front-back direction by the driving of a linear cylinder 1055 connected to the front guide plate 1053 to push the front carrier 300 or rear carrier into the belt conveying mechanism 121 or the belt conveying mechanism 511. Specifically, as shown in fig. 8, 12 and 13, the rear docking station 106 includes a rear stage 1061, a rear guide plate 1062 movably disposed on the rear stage 1061 in the left-right direction, and a rear material feeding plate 1063 movably disposed on the rear stage 1061 in the front-rear direction, the rear stage 1061 is configured to receive the empty front carrier 300 or rear carrier at the

return conveyor

43 or 73, the rear guide plate 1062 is driven by a linear cylinder 1064 connected thereto to linearly move in the left-right direction so as to push the received empty front carrier 300 or rear carrier to a position opposite to the input end of the belt conveying mechanism 312 or belt conveying mechanism 622, and the rear material feeding plate 1063 is driven by a linear cylinder 1065 connected thereto to linearly move in the front-rear direction so as to push the front carrier 300 or rear carrier into the belt conveying mechanism 312 or belt conveying mechanism 622.

Referring to fig. 4, specifically, the front carrier 300 is provided therein with a first contour groove 301 and a pressing arm 302 disposed beside the first contour groove 301, the shape of the first contour groove 301 matches the shape of the outer contour of the bottom case 201 for disposing the bottom case 201, the front carrier 300 is further provided thereon with a second contour groove 303 located on the other side of the pressing arm 302 and a pressing cover 304 disposed in the second contour groove 303, the pressing cover 304 is used for covering the top side end of the bottom case 201 to abut against the PCBA board 202 preliminarily pasted in the bottom case 201, the pressing arm 302 is arranged in a liftable and rotatable manner to abut against the pressing cover 304 covering the bottom case 201 from above, thereby realizing pressure maintaining positioning and ensuring curing precision. In some embodiments, the first groove 301 has at least two positioning clips with different areas arranged along the depth direction of the first groove, so as to adapt to the positioning of the bottom cases 201 with different specifications, and effectively improve the adaptability. Correspondingly, the number of the second contour grooves 303 is at least two, so as to correspond to the bottom case 201. Preferably, in some embodiments, the front carrier 300 further has a through hole 305 communicating with the first contour groove 301 on an outer side wall thereof, so as to facilitate coding and scanning of the bottom case 201. For convenience of flow, the structure of the rear carrier may be substantially the same as that of the front carrier 300, except that the pressing cover 304 may be omitted, and the pressing arm 302 only needs to abut against the top cover 203 covering the bottom case 201 from above to realize pressure maintaining and positioning. Of course, the rear carrier can also be simplified to omit the second contour groove 303, thereby further optimizing the structure.

Referring to fig. 5, the feeding device 400 includes a feeding belt 401, two lifting mechanisms 402, a front clamping mechanism 403 and a rear clamping mechanism 404, the feeding belt 401 is arranged in a front-rear direction and correspondingly conveys the bottom shell 201, the PCBA board 202 or the top cover 203 through a tray (not shown) arranged thereon, and the tray is provided with a plurality of clamping positions so as to be capable of carrying a plurality of bottom shells 201, PCBA boards 202 or top covers 203 at a time, the two lifting mechanisms 402 are arranged on the bottom sides of the front and rear opposite ends of the feeding belt 401 in a one-to-one correspondence manner, and the front clamping mechanism 403 and the rear clamping mechanism 404 are arranged on the top sides of the front and rear opposite ends of the feeding belt 401 in a corresponding manner. The jacking mechanism 402 located at the opposite front end is matched with the front clamping mechanism 403 and used for placing a stack of trays which are stacked on the upper side of the feeding conveyor belt 401 and fully carry the bottom shell 201, the PCBA board 202 or the top cover 203 onto the feeding conveyor belt 401 one by one, the feeding conveyor belt 401 is used for conveying the received trays in the front-to-back direction, and the jacking mechanism 402 located at the opposite rear end is matched with the rear clamping mechanism 404 and used for taking the empty trays of the bottom shell 201, the PCBA board 202 or the top cover 203 away and pushing the empty trays upwards to the upper side of the feeding conveyor belt 201 to be stacked. Specifically, the jacking mechanism 402 includes a jacking sucker 4021 and a jacking cylinder 4022 connected to the jacking sucker 4021, and the jacking cylinder 4022 is configured to drive the jacking sucker 4021 to move linearly in the up-down direction, so as to downwards adsorb the bottom material tray of the stacked material tray stack to make the bottom material tray drop on the feeding conveyor belt 401, or upwards push the empty material tray to separate from the feeding conveyor belt 401. The front clamping mechanism 403 comprises at least two clamping members 4031 symmetrically arranged on two opposite sides of the left side and the right side of the feeding conveyor belt 401 and a clamping cylinder 4032 correspondingly connected with the at least two clamping members 4031, and the clamping cylinder 4032 is used for driving the at least two clamping members 4031 to move towards or away from each other so as to clamp a material tray adjacent to the bottom material tray, so that the jacking mechanism 402 can conveniently suck and transfer the bottom material tray. The rear clamping mechanism 404 includes at least two locking parts 4041 symmetrically arranged on the left and right opposite sides of the feeding conveyor belt 401, and the locking parts 4041 are rotatably or telescopically arranged relative to the feeding conveyor belt 401, so that the tray is simultaneously rotated or stretched to avoid under the action of the jacking mechanism 402 on the pushing force of the tray, and the tray is automatically reset after being pushed in place, so as to clamp and position the tray at the bottom layer, thereby realizing the stacking of the trays.

The following is a description of the specific structure and operation principle of each machine of the automatic assembly line 100 according to the operation process of the whole production line:

referring to fig. 6, the feeding machine 10 is used as a starting end of the whole production line, and is configured to perform automatic feeding, laser coding, dust removal cleaning, and split-flow conveying on the bottom case 201, and includes a feeding device 400 and a feeding conveying device 12 that are arranged at intervals in the left-right direction, a front conveying device 13 that is erected on the upper sides of the feeding device 400 and the feeding conveying device 12, an aligning device 14 that is arranged between the feeding device 400 and the feeding conveying device 12, a laser coding device 15 that is arranged on the side of the aligning device 14, and a plasma cleaning device 16 and a sorting device 17 that are erected on the upper side of the feeding conveying device 12 in sequence in the conveying direction of the feeding conveying device 12, where the feeding conveying device 12 includes a belt conveying mechanism 121 and a belt conveying mechanism 122 that are arranged in the front-back direction and have a certain distance. The feeding device 400 is also arranged in the front-rear direction for conveying the bottom case 201 carried in the tray to a position convenient for the front transfer device 13 to take out the material. The front transfer device 13 moves back and forth among the feeding device 400, the aligning device 14 and the feeding and conveying device 12, and is used for sucking the bottom shell 201 in the tray one by one to the aligning device 14, and the aligning device 14 is used for adjusting the position of the bottom shell 201, so that the laser coding device 15 can conveniently perform laser coding on the bottom shell 201 from the side end, and the front transfer device 13 can conveniently and accurately fetch and convey the coded bottom shell 201 to the front carrier 300 of the belt conveying mechanism 121 in an aligning manner. The belt conveying mechanism 121 is used for conveying the bottom shell 201 supported on the front carrier 300 towards the front dispenser 20, and in the conveying process, the bottom shell 201 is subjected to dust removal cleaning through the plasma cleaning device 16, so that the precision of subsequent dispensing and assembling is effectively improved, the bottom shell 201 subjected to dust removal is detected and identified through the sorting device 17, the bottom shell 201 which is unqualified in code printing and the corresponding front carrier 300 are clamped to the bad code printing placing table 18 located beside the belt conveying mechanism 122 from the belt conveying mechanism 121, and the bottom shell 201 which is qualified in code printing and clean and dustless is accurately conveyed to the front dispenser 20.

Referring to fig. 7, the front dispensing machine 20 is disposed at the output end of the feeding machine 10, and is configured to receive the bottom case 201 conveyed by the feeding machine 10 and dispense glue to the first dispensing area W1 of the bottom case 201, and includes a front dispensing conveyor 21, a two dispensing device 22 disposed at the side of the front dispensing conveyor 21 at intervals along the front-back direction, a sorting device 23 erected at the output end of the front dispensing conveyor 21, and a bad dispensing carrying platform 24 disposed at the side of the front dispensing conveyor 21, where the front dispensing conveyor 21 includes a belt conveying mechanism 211 and a belt conveying mechanism 212 disposed at intervals along the front-back direction, respectively. The belt conveying mechanism 211 is configured to receive and convey the front carrier 300 loaded with the bottom case 201, the two-dispensing device 22 is configured to move relative to the belt conveying mechanism 211 to dispense the bottom case 201 of the front carrier 300 located at the point position of the belt conveying mechanism 211, at this time, the dispensing operation of the first dispensing area W1 can be realized only by vertical dispensing, the sorting device 23 is configured to detect and identify the bottom case 201 dispensed in the first dispensing area W1, so as to clamp the bottom case 201 that is unqualified in dispensing together with the corresponding front carrier 300 onto the dispensing-defective loading table 24, and the bottom case 201 that is qualified in dispensing is accurately positioned and conveyed to the front assembling machine 30.

Referring to fig. 8 to 10, the front assembling machine 30 is disposed at an output end of the front dispensing machine 20, and is configured to bond the PCBA board 202 to the bottom case 201 subjected to dispensing in the first dispensing area W1 accurately in an aligned manner, and includes a feeding device 400 and a conveying device 31 disposed at intervals in the left-right direction, an assembling device 32 erected above the feeding device 400 and the conveying device 31, a positioning device 33 disposed between the feeding device 400 and the conveying device 31, and a detecting device 34 disposed at the assembling device 32, where the conveying device 31 includes a belt conveying mechanism 311 and a belt conveying mechanism 312 disposed in the front-back direction and having a certain distance therebetween, respectively. The feeding device 400 is used for automatic feeding and positioning conveying of the PCBA board 202, and the belt conveying mechanism 311 is used for conveying the dispensed bottom case 201 positioned in the front carrier 300 and the bottom case 201 adhered with the PCBA board 202. The assembling device 32 moves back and forth between the feeding device 400, the positioning device 33 and the conveying device 31, and is used for taking and placing the PCBA board 202 on the feeding device 400 onto the positioning device 33 for alignment adjustment, then bonding the aligned PCBA board 202 onto the bottom case 201 conveyed on the belt conveying mechanism 311, covering the gland 304 of the front carrier 300 on the top side end of the bottom case 201 bonded with the PCBA board 202, and driving the pressing arm 302 to rotate or move to abut against the top side end of the gland 304, so as to realize pressure maintaining and positioning, so that the PCBA board 202 and the bottom case 201 cannot shift in the transferring process, thereby not only effectively improving the assembling precision, but also facilitating the effective solidification of glue between the two, and further realizing firm assembling. 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, thereby realizing accurate assembly. The detection device 34 includes a bottom camera 341 disposed between the positioning device 33 and the belt conveying mechanism 311, and a top camera 342 disposed on the upper side of the belt conveying mechanism 311, in which the bottom camera 341 is configured to recognize coordinates of the PCBA board 202, and the top camera 342 is configured to recognize coordinates of the bottom chassis 201 and an assembly gap between the PCBA board 202 and the bottom chassis 201. Of course, the front assembling machine 30 further includes a sorting device 35 disposed at the output end of the conveying device 31, and the sorting device 35 is configured to detect and identify the integrally assembled PCBA board 202 and bottom case 201, so as to clamp the unqualified products and the corresponding front carrier 300 onto the bad assembling carrier 36 located at the side of the belt conveying mechanism 312, and the qualified products are accurately positioned and conveyed to the front solidifying machine 40.

Referring to fig. 9, the assembling device 32 includes an assembling driving mechanism 321, and a material taking suction head 322, a cover taking suction head 323, and a pressure maintaining clamping jaw 324 connected to an output end of the assembling driving mechanism 321, wherein the assembling driving mechanism 321 is used for driving the material taking suction head 322, the cover taking suction head 323, and the pressure maintaining clamping jaw 323 to perform linear reciprocating motions along a front-back direction, a vertical direction, and a left-right direction, so that the material taking suction head 322 can suck the PCBA plate 202 on the feeding device 400 onto the positioning device 33 to perform alignment adjustment, and then is assembled on the bottom case 201, so that the cover taking suction head 323 can suck and cover the press cover 304 on the front carrier 300 on the top side end of the bottom case 201 assembled with the PCBA plate 202, and further, the pressure maintaining clamping jaw 324 can rotate or move the press arm 302 of the front carrier 300 to abut against the top end of the press cover 304 on the bottom case 201. The PCBA board 202 is picked and placed by the material taking suction head 322 through the plurality of vacuum suckers 3221, and the plurality of vacuum suckers 3221 and the positions of the four vertexes of the first dispensing area W1 of the bottom shell 201 are arranged in a one-to-one correspondence manner, so that efficient and stable taking and delivering operations are realized through multi-point adsorption. Preferably, the vacuum cups 3221 have a certain length, and the diameter of the suction holes is relatively small, so that the suction surfaces formed by the plurality of vacuum cups 3221 are relatively far from the main body of the material pick-up head 322, thereby facilitating the suction transfer of the PCBA board 202 with the plurality of electronic components bonded thereto.

Referring to fig. 10, in particular, in some embodiments, the capping suction head 323 includes a first vacuum suction cup 3231 and at least two second vacuum suction cups 3232 symmetrically disposed about the first vacuum suction cup 3231, and the first vacuum suction cup 3231 and the at least two second vacuum suction cups 3232 cooperate to suck the capping 304 from different positions, which is more preferable. The first vacuum chuck 3231 and the second vacuum chuck 3232 have substantially the same structure and size, but the diameter of the first vacuum chuck 3231 may also be relatively large, and the diameter of the second vacuum chuck 3232 may also be relatively small, so that the cover 304 can be stably and firmly placed. Specifically, the capping suction head 323 further includes a lifting motor 3233 connected to an output end of the stack driving mechanism 321 and a mounting base 3234 connected to an output end of the lifting motor 3233, the first vacuum suction cups 3231 are disposed at a central position of the mounting base 3234, at least two first vacuum suction cups 3231 are symmetrically disposed at opposite edges of the mounting base 3234 centering on the first vacuum suction cups 3231, and the lifting motor 3233 is configured to drive the first vacuum suction cups 3231 and at least two second vacuum suction cups 3232 to move up and down to pick and place the caps 304.

It should be noted that, in some embodiments, the structure of the assembly apparatus 32 may be further optimized, the output end of the assembly driving mechanism 321 is only connected to the cover taking suction head 323 and the pressure maintaining clamping jaw 324, the assembly driving mechanism 321 only needs to drive the cover taking suction head 323 and the pressure maintaining clamping jaw 324 to perform linear reciprocating motion along the front-back, up-down and left-right directions, the cover taking suction head 323 sucks the upper PCBA plate 202 onto the positioning device 33 to perform alignment adjustment, then the assembly is assembled on the bottom case 201, the pressing cover 304 sucks and covers the top side end of the bottom case 201 assembled with the PCBA plate 202, and the pressing arm 302 is rotated or moved by the pressure maintaining clamping jaw 323 to abut against the top side end of the pressing cover 304. In this configuration, the first vacuum cups 3231 of the pick-and-place tip 323 are configured and function differently than the second vacuum cups 3232, and at least two of the second vacuum cups 3232 can pick and place the PCBA board 202 individually, or, in cooperation with the first vacuum cups 3231, pick and place the PCBA board 202 together, thereby providing a secure and secure pick and place of the PCBA board 202. The first vacuum chuck 3231 can move up and down relative to the second vacuum chuck 3232 under the driving of the cylinder 3235 connected thereto, so as to take and deliver the gland 304 to the top side end of the bottom case 201, at this time, the diameter of the first vacuum chuck 3231 is relatively large, and the diameter of the second vacuum chuck 3232 is relatively small, thereby effectively simplifying the structure and correspondingly reducing the manufacturing cost.

Referring to fig. 8, 11-15, a front curing machine 40 is provided at the output of the front assembling machine 30 for curing the glue between the initially bonded PCBA board 202 and bottom case 201 to achieve a secure assembly of the two to form a semi-finished product, and includes a tunnel oven 41, a cooling conveyor belt 42 and a return conveyor belt 43 arranged at a distance from the tunnel oven 41. The tunnel oven 41 is provided with a chain conveyor belt 411 for drying and solidifying glue between the PCBA 202 and the bottom shell 201 which are conveyed on the chain conveyor belt 411 and are primarily bonded according to the sequence of the entering chain conveyor belt 411, the input end of the cooling conveyor belt 42 and the input end of the backflow conveyor belt 43 are arranged at the discharge outlet of the tunnel oven 41 in an aligned manner, the cooling conveyor belt 42 is used for receiving solidified semi-finished products conveyed by the tunnel oven 41 and conveying the semi-finished products towards the direction of the rear dispensing machine 50, and the output end of the backflow conveyor belt 43 is butted with the output end of the front assembling machine 30 through the rear butt joint table 106 and is used for receiving and backflow conveying of the semi-finished products with the rear empty front carrier 300. Preferably, a plurality of fans 421 are further disposed on the cooling conveyor belt 42, so as to effectively cool the semi-finished products 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 rear glue dispenser 50, so that the structure can be simplified, the length of the whole production line can be effectively shortened, the manufacturing cost can be reduced, and the cooling effect can be effectively improved.

In some embodiments, a pushing device 500 and a pushing device 600 are further disposed at the inlet and the outlet of the tunnel oven 41, respectively, a separating device 700 is further disposed between the pushing device 600 and the cooling conveyor belt 42, the pushing device 500 is configured to push the PCBA board 202 and the bottom case 201 loaded with the preliminary bonding together into the tunnel oven 41 in a row, the tunnel oven 41 sequentially conveys the front carriers 300 row by row to the pushing device 600, the pushing device 600 is configured to convey the rows of front carriers 300 one by one toward the separating device 700, the separating device 700 is configured to take out the semi-finished products from the corresponding front carriers 300 and transfer the semi-finished products to the input end of the corresponding cooling conveyor belt 42, and further transfer the empty front carriers 300 to the input end of the reflow conveyor belt 43.

Specifically, the pushing device 500 includes a material receiving platform 501 butted with an output end of the belt conveying mechanism 311 of the front assembling machine 30, a pushing member 502 erected at an input end of the material receiving platform 501, and a pushing member 503 erected at an output end of the material receiving platform 501, the material receiving platform 501 is arranged along the left-right direction and has a certain length, and a top surface thereof is provided with a limit stopper. The pushing member 502 is driven by the cylinder 504 connected with the pushing member to move left and right relative to the receiving platform 501, so that the PCBA 202 and the front carriers 300 of the bottom case 201, which are supported by the input end of the receiving platform 501 and are primarily bonded, are sequentially pushed towards the direction of the output end of the receiving platform 501, and the pushing member 503 is driven by the driving component 505 connected with the pushing member to move back and forth relative to the receiving platform 501, so that the front carriers 300 arranged at the output end of the receiving platform 501 are pushed to the chain conveyor 411 of the tunnel furnace 41 in rows, thereby realizing the efficient furnace feeding operation of a plurality of front carriers 300 and effectively improving the curing efficiency.

Specifically, the pushing-out device 600 includes a material receiving platform 601 abutted to an output end of a chain conveyor 411 of the tunnel furnace 41, a toggle piece 602 erected on an input end of the material receiving platform 601, a chain conveyor 603 abutted to an output end of the material receiving platform 601, and a splitting platform 604 arranged on an output end of the chain conveyor 603, wherein the material receiving platform 601 is arranged in the left-right direction and has a certain length. The shifting member 602 is driven by a driving component 605 connected with the shifting member to linearly move relative to the material receiving platform 601 along the up-down direction and the front-back direction, so as to sequentially shift a row of front carriers 300 loaded with semi-finished products and received at the input end of the material receiving platform 601 towards the direction of the output end of the material receiving platform 601, and the chain conveyor 603 is used for conveying the front carriers 300 pushed onto the shifting member in a row from the side surface along the left-right direction, so that the front carriers 300 are conveyed onto the separating platform 604 one by one, and the separating device 700 can complete the corresponding separating operation conveniently.

Specifically, the disassembling device 700 is provided to straddle the upper sides of the disassembling table 604, the cooling conveyor 42, and the reflow conveyor 43 so as to reciprocate therebetween, and is configured to remove the press cover 304 of the front carrier 300 on the disassembling table 604 from the semi-finished product, take out the semi-finished product from the front carrier 300 to be placed at the input end of the cooling conveyor 42, and transfer the empty front carrier 300 after taking out the semi-finished product from the disassembling table 604 to the input end of the reflow conveyor 43. More specifically, the disassembling device 700 includes a disassembling claw 701, a material taking claw 702 and a transfer claw 703 which are arranged on the upper side of the disassembling table 604 at intervals along the front-back direction, the disassembling claw 701 is used for driving the pressing arm 302 to rotate so as to release the pressing of the pressing cover 304 covering the top side end of the bottom case 201, the material taking claw 702 is used for taking and placing the pressing cover 304 which is released from the pressing into the second contour groove 303 of the front carrier 300 and taking and placing the semi-finished product with the pressing cover 304 removed onto the cooling conveyor belt 42, and the transfer claw 703 is used for transferring the empty front carrier 300 after the semi-finished product is taken onto the reflow conveyor belt 43. Further, the detaching apparatus 700 further includes a driving mechanism 704 for driving the detaching claw 701 to move up and down and rotate, and a driving mechanism 705 for driving the material taking claw 702 and the transfer claw 703 to move linearly in the front-rear, left-right, and up-down directions.

Referring to fig. 3 and 15 to 17, the rear dispenser 50 is disposed at an output end of the front curing machine 40, and is used for dispensing glue at the second dispensing area W2 of the bottom case 201 of the semi-finished product, and includes a dispensing table 51, a two dispensing device 52 disposed on a right side of the dispensing table 51 at an interval in a front-back direction, a discharging device 53 disposed on a left side of the dispensing table 51 in the front-back direction, and a transfer device 54 mounted on an upper side of the dispensing table 51 and the discharging device 53. The discharging device 53 includes a belt conveying mechanism 531 and a belt conveying mechanism 532 arranged along the front-back direction and having a certain distance, the transfer device 54 transfers the semi-finished product conveyed by the cooling conveyor belt 42 to the dispensing table 51 through the feeding clamping jaws, the dispensing table 51 is used for fixing the received semi-finished product and driving the semi-finished product to turn over for a certain angle, and also driving the turned semi-finished product to horizontally rotate so as to be matched with at least one of the two dispensing devices 52 moving to the dispensing table 51 for dispensing the second dispensing area W2 of the bottom case 201, the transfer device 54 further takes the dispensed semi-finished product off from the dispensing table 51 through the discharging clamping jaws 542 and transfers the dispensed semi-finished product to the belt conveying mechanism 531 of the discharging device 53, so that the dispensed semi-finished product is conveyed towards the rear assembling machine 60.

Referring to fig. 16 and 17, the dispensing table 51 is provided with a driving mechanism 511 and a positioning plate 512 connected to an output end of the driving mechanism 511, the positioning plate 512 is used for receiving and adsorbing and fixing the semi-finished product, the positioning plate 512 is turned over by 45 ° under the driving of a turning motor 5111, so that the bottom case 201 rotates to a position where the inner wall of the top side end thereof is convenient for dispensing, and the turned bottom case 201 rotates around the dispensing head of the dispensing device 52 under the driving of a rotating motor 5112, thereby completing the dispensing operation on the inner peripheral wall of the top side end. The positioning disc 512 is provided with at least two arrangement clamping grooves 5121, and the shapes and sizes of the at least two arrangement clamping grooves 5121 are different, so that the positioning disc 512 is suitable for arranging at least two bottom cases 201 with different sizes, the positioning disc 512 does not need to be frequently replaced, the universality is higher, and the dispensing efficiency is effectively improved; of course, at least two bottom cases 201 with the same size can be arranged on the positioning plate 512 at a time, so that the dispensing efficiency can be effectively improved. It should be noted that the positioning plate 512 is further provided with vacuum suction nozzles 5122, and the vacuum suction nozzles 5122 may be correspondingly disposed in the respective arrangement clamping grooves 5121 one by one, and are used for fixedly absorbing the bottom shell 201 in the respective arrangement clamping grooves 5121. Specifically, in the preferred embodiment of the present application, at least two positioning grooves 5121 with different heights and different sizes are formed on the positioning plate 512 by recessing the top wall of the positioning plate toward the bottom wall of the positioning plate, and the at least two positioning grooves 5121 are concentrically arranged with the center of the circle 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 nozzle 5122 can be arranged at the center of the positioning plate 512, and each positioning clamping groove 5121 can share one vacuum suction nozzle 5122, thereby further optimizing the structure. Of course, when the bottom case 201 has a larger size and the top end surface of the positioning plate 512 can also be used as a bearing surface, the bottom case 201 is directly disposed on the top end surface of the positioning plate 512, and at least two vacuum suction nozzles 5122 can be uniformly distributed around the top end surface of the positioning plate 512, so as to suck and fix the semi-finished product.

Referring to fig. 18, the rear assembling machine 60 is disposed at the output end of the rear dispensing machine 50, and is used for accurately aligning and bonding the top cover 203 to the bottom case 201 dispensed in the second dispensing area W2, and includes a feeding device 400 and a rear conveying device 61 which are arranged at intervals in the left-right direction, an assembling device 62 which is erected above the feeding device 400 and the rear conveying device 61, a sorting device 63 which is disposed at the output end of the rear conveying device 61, a positioning device (not shown) which is disposed between the feeding device 400 and the rear conveying device 61, a detecting device 64 which is disposed at the assembling device 62, and a defective product carrier 65 which is disposed at the side of the rear conveying device 61, wherein the detecting device 64 includes a bottom camera 641 and a top camera 642. The structure and operation of the rear assembling machine 60 are substantially the same as those of the front assembling machine 30, and the main difference is that the pressing arm 302 directly abuts against the top cover 203 without the pressing cover 304, so that the structure of the assembling device 62 is simplified accordingly, and will not be described in detail.

Referring to fig. 3, 18 and 19, the post-curing machine 70 is disposed at the output end of the post-assembling machine 60, and is used for curing the glue between the preliminarily bonded caps 203 and the semi-finished products, and includes a tunnel oven 71, a cooling conveyor 72 and a return conveyor 73 spaced apart from each other and disposed beside the tunnel oven 71, a pushing device 500 and a pushing device 600 disposed at the feed inlet and the discharge outlet of the tunnel oven 71, and a separating device 700 disposed at the output end of the pushing device 600. The structure and the operation principle of the tunnel furnace 71, the cooling conveyor 72 and the reflow conveyor 73 are basically the same as those of the front curing machine 40, except that the pressing cover 304 is omitted from the rear carrier, the disassembling device 700 only needs to drive the pressing arm 302 of the rear carrier to rotate, and the pressure maintaining 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 72, and the empty rear carrier is transferred to the input end of the reflow conveyor 73.

Referring to fig. 19, the blanking machine 80 is disposed at the output end of the post-curing machine 70, and is used for detecting, conveying and blanking finished products, and includes a blanking transfer device 81, a shaping table 82 and a feeding device 400, which are sequentially arranged in the left-right direction, wherein the blanking transfer device 81 is used for detecting and identifying the finished products conveyed by the cooling conveyor 72, transferring unqualified products onto a defective product mounting table, transferring qualified products onto the shaping table 82 for alignment adjustment, and then transferring the qualified products onto a tray of the feeding device 400. In this machine, the loading device 400 sequentially places the empty stacked trays on the loading conveyor 401, receives the finished product at a position opposite to the center, moves the trays toward the output end of the loading conveyor 401 after the trays are full, and stacks the trays full of finished product at the upper side of the output end.

Compared with the prior art, the automatic assembly line 100 comprises a front section assembly line 100a formed by sequentially butting a feeding machine 10, a front dispensing machine 20, a front assembling machine 30 and a front curing machine 40, a rear section assembly line 100b formed by sequentially butting rear dispensing machines 50, rear assembling machines 60 and rear curing machines 70 at the output ends of the front curing machines 40, the automatic assembly line 100a is used for dispensing, assembling and curing between a bottom shell 201 of a vehicle-mounted IMU and a PCBA plate 202 to form a semi-finished product, and the rear section assembly line 100b butted with the front section assembly line 100a is used for dispensing, assembling and curing between a top cover 203 of the vehicle-mounted IMU and the bottom shell 201 of the semi-finished product to form the automatic assembly operation of a finished product, so that the whole assembly efficiency is high, the assembly precision is high, and the efficiency is high; and, fix the bottom case 201 through the front carrier 300 that recycles in the assembly line 100a of the anterior segment, thus further improve the accuracy of glue dispensing and assembly between PCBA board 202 and bottom case 201, and pressurize and position PCBA board 202 and bottom case 201 that bond preliminarily through the front carrier 300, prevent them from shifting in the course of glue solidification effectively, and then improve the solidification accuracy, and solidify in the course of transferring, effectively improve the solidification efficiency, also fix the semi-finished product through the back carrier that recycles in the assembly line 100b of the back segment, thus further improve the accuracy of glue dispensing and assembly between top cover 203 and bottom case 201 of the semi-finished product, and pressurize and position top cover 203 and semi-finished product that bond preliminarily through the back carrier, prevent them from shifting in the course of glue solidification effectively, and then improve the solidification accuracy, and solidify in the course of transferring, effectively improve the solidification efficiency, the using efficiency of the front carrier and the rear carrier is effectively improved through recycling; in addition, the automatic assembly line 100 of the present invention further performs assembly detection and classified blanking on the finished product by the blanking machine 80 disposed at the output end of the post-curing machine 70, thereby effectively ensuring the quality of the assembled vehicle-mounted IMU, and further improving the assembly efficiency by automatic blanking.

The above disclosure is only for the preferred embodiment of the present invention, and it should be understood that the present invention is not limited thereto, and the invention is not limited to the above disclosure.

Claims

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.