Automatic assembly line

Abstract

The utility model relates to an automatic assembly line which comprises a front-section assembly line, a middle-section assembly line and a rear-section assembly line which are sequentially arranged in the conveying direction of products. The front section assembly line, the middle section assembly line and the rear section assembly line are each provided with a plurality of material transferring devices, and each material transferring device comprises a multi-axis robot, a material taking clamp arranged at the output end of the multi-axis robot and a clamp library; material taking clamps of a first product series are stored in the clamp library of the front-section assembly line, material taking clamps of a whole product series are stored in the clamp library of the middle-section assembly line, and material taking clamps of a second product series are stored in the clamp library of the rear-section assembly line. According to the assembly line, the front-section assembly line, the middle-section assembly line and the rear-section assembly line are respectively provided with the material taking clamp libraries of different series, so that the assembly line can quickly meet the assembly requirements of different product series, and products of different models can be produced according to the matching and combination of different sections of assembly lines.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automatic production line, and specifically, particularly to an automatic assembly line. BACKGROUND

[0002] In the production process of some products, the parts need to be processed and assembled. At present, the same type of products on the market is usually divided into different models and assembled respectively due to the difference in function and quality, such as electric irons. The electric iron usually needs to be assembled with bottom cover, gasification chamber and gasification chamber cover, and the products under the same brand usually have multiple models. There are the same assembly process and different assembly process between different models. In order to facilitate processing, the manufacturer usually sets up a separate assembly production line for different models, which will lead to a substantial increase in cost. SUMMARY

[0003] Therefore, the utility model provides an automatic assembly line applicable to different models of products.

[0004] The utility model discloses a kind of automatic assembly lines.

[0005] An automatic assembly line comprises a front assembly line, a middle assembly line and a rear assembly line arranged in sequence along the conveying direction of products. The front assembly line, the middle assembly line and the rear assembly line are each equipped with a plurality of material transfer devices. The material transfer device comprises a multi-axis robot, a material taking clamp arranged at the output end of the multi-axis robot, and a clamp library. The output end of the multi-axis robot is detachably connected to the material taking clamp through a quick-change module. The material taking clamp comprises a connecting plate and two grabbing modules arranged on the connecting plate. The quick-change module is connected to the output end of the multi-axis robot and the connecting plate respectively. The clamp library of the front assembly line stores the material taking clamp of a first product series. The clamp library of the middle assembly line stores the material taking clamp of a full product series. The clamp library of the rear assembly line stores the material taking clamp of a second product series.

[0006] In the technical solution, different series of material taking jigs are arranged in the front assembly line, the middle assembly line and the rear assembly line respectively, so that the assembly line can quickly adapt to the assembly requirements of different product series, and different models of products can be produced according to the combination of different assembly lines. For example, the combination of the front assembly line and the middle assembly line is suitable for the assembly of the first product series, the combination of the middle assembly line and the rear assembly line is suitable for the assembly of the second product series, and the middle assembly line has the compatibility of the whole product series. Different assembly lines or even different stations in different assembly lines can be flexibly combined according to the actual assembly requirements of the products. This design enables the production line to quickly switch product types without interrupting production, greatly improving the production flexibility.

[0007] Optionally, in a possible implementation, the front assembly line comprises a first flow transfer module and a feeding platform for conveying semi-finished products, and a first bottom cover feeding platform, a terminal welding device and a semi-finished product oiling device distributed on the side of the first flow transfer module.

[0008] In the technical solution, taking the assembly line for assembling an electric iron as an example, the material transfer device can transfer the bottom cover in the first bottom cover feeding platform to the first flow transfer module. The processed semi-finished product gasification chamber is placed in the terminal welding device by manual operation. After welding, the gasification chamber is transferred to the semi-finished product oiling device by the material transfer device. Then, the oiled gasification chamber is assembled to the bottom cover on the first flow transfer module, thereby completing the assembly of the bottom cover and the gasification chamber.

[0009] Optionally, in a possible implementation, the terminal welding device comprises a first machine table, a first turntable is arranged on the first machine table, a transfer mechanism, a terminal feeding mechanism and a welding mechanism are sequentially arranged on the edge of the first turntable, and a plurality of welding jigs for positioning products are arranged on the first turntable.

[0010] In the technical solution, the products are sequentially transferred through the transfer mechanism, the terminal feeding mechanism and the welding mechanism by rotating the turntable. The processed semi-finished product gasification chamber is placed in the welding jig in the first turntable by manual operation. Then, the terminal feeding mechanism places the terminal in the welding jig. Then, the welding mechanism welds the terminal and the semi-finished product gasification chamber. Then, the welded gasification chamber is placed on the transfer mechanism, and then placed in the semi-finished product oiling device by the material transfer device for oiling. After oiling, the gasification chamber can be assembled with the bottom cover.

[0011] Optionally, in a possible implementation, the semi-finished product oiling device comprises a second machine table, the second machine table is provided with an oiling manipulator, a rotating table and a turnover mechanism, the output end of the oiling manipulator is provided with a plurality of oiling devices, the rotating table is provided with a plurality of oiling jigs, and the turnover mechanism is used for grabbing the product in the oiling jig and turning over.

[0012] In the technical solution, the welding chamber is placed in the oiling jig by the material transferring device, then the turnover mechanism grabs the welding chamber and turns it over to face the oiling device, and then the oiling manipulator drives the oiling device to oil the welding chamber. The rotating table is provided with a plurality of oiling jigs, the oiling jigs can be divided into two groups, and the rotating table can make the two groups of oiling jigs realize alternate oiling through rotation, thereby effectively improving the oiling efficiency of the welding chamber.

[0013] Optionally, in a possible implementation, the middle section assembly line comprises a second flow transfer module, and a first screw locking device, a cover body feeding platform and a cover body oiling device distributed on the side of the second flow transfer module. The end of the second flow transfer module is further provided with, in sequence, a riveting device, a heating and insulation voltage resistance detection device, a gasification promotion coating device, a cooling device and a pressure leakage detection device.

[0014] In the technical solution, the material transferring device grabs the semi-finished product assembled by the front section assembly line into the first screw locking device, then grabs the welding chamber cover from the cover body feeding platform into the cover body oiling device for oiling, grabs the oiled welding chamber cover into the first screw locking device, locks the screws in the first screw locking device, and then puts the semi-finished product with locked screws into the second flow transfer module. Secondly, the material transferring device grabs the semi-finished product with assembled cover in the second flow transfer module and transfers it to the riveting device for riveting. After riveting, the semi-finished product enters, in sequence, the heating and insulation voltage resistance detection device, the gasification promotion coating device, the cooling device and the pressure leakage detection device, thereby completing the assembly and testing of the product.

[0015] Optionally, in a possible implementation, the first screw locking device comprises a third machine table, the third machine table is provided with a second turntable and two groups of screw locking mechanisms arranged along the edge of the second turntable; the screw locking mechanism comprises a screw locking machine and a screw feeder, and the second turntable is provided with a plurality of screw locking jigs for positioning the product.

[0016] In the technical solution, the first screw locking device adopts a double-station processing mode, that is, two screw locking mechanisms are arranged at the edge of the second turntable, so that uninterrupted processing of the first screw locking device can be realized, that is, the space occupation can be effectively saved, and the screw locking efficiency of the product can be improved.

[0017] Optionally, in a possible implementation, the riveting device comprises a riveting machine, and a first feeding mechanism arranged on the riveting machine, the first feeding mechanism comprising a first sliding rail, a first sliding table arranged on the first sliding rail, and a first driving member for driving the first sliding table to move.

[0018] In the above technical solution, the first feeding mechanism is integrated, automatic feeding of the riveting machine is realized, the grabbing and placing of the material transfer device are facilitated, the material transfer device can complete feeding without extending into the interior of the riveting machine, operation is convenient and fast, and the accuracy of riveting positioning can be effectively improved.

[0019] Optionally, in a possible implementation, the heating and insulation pressure detection device comprises a testing machine, and a second feeding mechanism arranged on the testing machine, the second feeding mechanism comprising a second sliding rail, a second sliding table arranged on the second sliding rail, and a second driving member for driving the second sliding table to move.

[0020] In the above technical solution, similarly, the second feeding mechanism is added to the testing machine by improving the testing machine, the grabbing and placing of the material transfer device are facilitated, and synchronous sliding of multiple products into or out of the testing machine can be realized, thereby effectively improving the processing efficiency of the products.

[0021] Optionally, in a possible implementation, the cooling device comprises a fourth machine table, a cooling conveying line is arranged on the fourth machine table, a cooling cover is arranged on the cooling conveying line, and a plurality of fans are installed on the cooling cover.

[0022] In the above technical solution, multiple products can be placed on the cooling conveying line, in addition, the cooling cover is arranged above the cooling conveying line, and multiple fans are installed, thereby realizing omnibearing and efficient cooling of the products. Forced convection of the fans accelerates air flow, effectively reduces the temperature of the products, shortens the cooling time, and improves the production efficiency.

[0023] Optionally, in a possible implementation, the rear-stage assembly line comprises a third flow transfer module, and a second bottom cover feeding platform, a bottom cover oiling device, and a second screw locking device distributed on the side of the third flow transfer module.

[0024] In the above technical solution, the rear-stage assembly line is a function adjustment of the front-stage assembly line, that is, in the assembly of the second product series, the bottom cover needs to be oiled, therefore, the assembly of the bottom cover and the gasification chamber is ingeniously arranged in the rear-stage assembly line, thereby further improving the application range of the overall assembly line. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0026] Figure 1 The overall structure of an embodiment is shown in a top view.

[0027] Figure 2 The partial structure of an embodiment of the front assembly line is shown in a schematic view.

[0028] Figure 3 The partial structure of an embodiment of the material transfer device is shown in a schematic view.

[0029] Figure 4 The overall structure of an embodiment of the terminal welding device is shown in a schematic view.

[0030] Figure 5 The partial structure of an embodiment of the terminal welding device is shown in a schematic view.

[0031] Figure 6 The structure of an embodiment of the welding mechanism is shown in a schematic view.

[0032] Figure 7 The overall structure of an embodiment of the first screw locking device is shown in a schematic view.

[0033] Figure 8 The partial structure of an embodiment of the first screw locking device is shown in a schematic view.

[0034] Figure 9 The structure of an embodiment of the riveting device is shown in a schematic view.

[0035] Figure 10 The structure of an embodiment of the heating and insulation voltage resistance detection device is shown in a schematic view.

[0036] Figure 11 The structure of an embodiment of the cooling device is shown in a schematic view.

[0037] Figure 12 The structure of an embodiment of the leakage detection device is shown in a schematic view.

[0038] Reference signs:

[0039] 1 - material transfer device; 11 - multi-axis robot; 111 - quick-change module; 12 - material taking clamp; 121 - grabbing module; 122 - connecting plate; 13 - clamp library;

[0040] A - the first section assembly line; a1 - the first flow transfer module; a2 - the loading platform; a3 - the first bottom cover feeding platform; a4 - the terminal welding device; a41 - the first machine table; a42 - the first rotary table; a421 - the welding jig; a43 - the transfer mechanism; a431 - the transfer linear module; a432 - the transfer jig; a433 - the transfer manipulator; a44 - the terminal loading mechanism; a441 - the terminal vibration disc; a442 - the distribution belt; a443 - the terminal taking manipulator; a45 - the welding mechanism; a5 - the semi-finished product oiling device; a51 - the second machine table; a52 - the oiling manipulator; a53 - the rotary table; a54 - the turnover mechanism; a541 - the mounting frame; a542 - the turnover driving member; a543 - the rotating shaft; a544 - the suction member; a55 - the oiler;

[0041] B - the middle section assembly line; b1 - the second flow transfer module; b2 - the first screw locking device; b21 - the third machine table; b22 - the second rotary table; b221 - the screw locking jig; b23 - the screw locking mechanism; b231 - the screw locking machine; b232 - the screw feeder; b3 - the cover feeding platform; b4 - the cover oiling device; b5 - the riveting device; b51 - the riveting machine; b52 - the first feeding mechanism; b521 - the first sliding rail; b522 - the first sliding table; b523 - the first driving member; b6 - the heating and insulation voltage resistance detection device; b61 - the testing machine; b62 - the second feeding mechanism; b621 - the second sliding rail; b622 - the second sliding table; b7 - the gasification promoting coating device; b8 - the cooling device; b81 - the fourth machine table; b82 - the cooling conveying line; b83 - the cooling cover; b84 - the fan; b9 - the leakage detection device; b91 - the fifth machine table; b92 - the third sliding rail; b93 - the testing upper mold; b94 - the testing lower mold; b10 - the transfer table;

[0042] C - the last section assembly line; c1 - the third flow transfer module; c2 - the second bottom cover feeding platform; c3 - the bottom cover oiling device; c4 - the second screw locking device. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but merely represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0045] Reference should be made to Figures 1-3 The embodiment provides an automatic assembly line, which comprises a front assembly line A, a middle assembly line B and a rear assembly line C arranged in sequence along the conveying direction of products; the front assembly line A, the middle assembly line B and the rear assembly line C are each equipped with a plurality of material transfer devices 1, the material transfer device 1 comprises a multi-axis robot 11, a material taking clamp 12 arranged at the output end of the multi-axis robot 11 and a clamp library 13; wherein the clamp library 13 of the front assembly line A stores the material taking clamp 12 of a first product series, the clamp library 13 of the middle assembly line B stores the material taking clamp 12 of a full product series, and the clamp library 13 of the rear assembly line C stores the material taking clamp 12 of a second product series. Specifically, the output end of the multi-axis robot 11 is detachably connected with the material taking clamp 12 through a quick-change module 111, wherein the material taking clamp 12 comprises a connecting plate 122 and two grabbing modules 121 arranged on the connecting plate 122, and the quick-change module 111 is connected with the output end of the multi-axis robot 11 and the connecting plate 122 respectively, so that the grabbing efficiency of the material taking clamp 12 can be effectively improved. The grabbing module 121 can realize grabbing of the product through the cooperation of a lifting cylinder and a clamping cylinder, such as installing the clamping cylinder at the output end of the lifting cylinder.

[0046] The embodiment can quickly adapt to the assembly requirements of different product series by configuring different series of material taking clamp 12 libraries in the front assembly line A, the middle assembly line B and the rear assembly line C, and can produce different models of products according to the combination of different assembly lines. For example, the combination of the front assembly line A and the middle assembly line B is suitable for the assembly of the first product series, the combination of the middle assembly line B and the rear assembly line C is suitable for the assembly of the second product series, and the middle assembly line B has the compatibility of the full product series, and different assembly lines or even different stations in different assembly lines can be flexibly combined according to the actual assembly requirements of the products. This design enables the production line to quickly switch product types without interrupting production, greatly improving the production flexibility.

[0047] In the embodiment, the front assembly line A includes a first flow transfer mold a1, a feeding platform a2 for conveying semi-finished products, a first bottom cover feeding platform a3, a terminal welding device a4 and a semi-finished product oiling device a5 distributed on the side of the first flow transfer mold a1. The first flow transfer mold a1 is a conventional conveying belt structure, and the specific structure is not described again. The feeding platform a2 is used for storing the processed semi-finished gasification chamber, which can flow into the terminal welding device a4 or directly flow into the first flow transfer mold a1 through manual selection.

[0048] In the embodiment, the first flow transfer mold a1 is used for transferring the bottom cover in the first bottom cover feeding platform a3 to the first flow transfer mold a1, the processed semi-finished gasification chamber is placed into the terminal welding device a4 by manual selection, and then the welded gasification chamber is transferred into the semi-finished product oiling device a5 through the transfer device 1. Then, the oiled gasification chamber is assembled to the bottom cover on the first flow transfer mold a1, so as to complete the assembly of the bottom cover and the gasification chamber.

[0049] Please refer to Figure 4 and Figure 5 In the embodiment, the terminal welding device a4 includes a first machine table a41, a first rotary table a42 provided on the first machine table a41, a transfer mechanism a43, a terminal feeding mechanism a44 and a welding mechanism a45 provided in sequence on the edge of the first rotary table a42, and a plurality of welding jigs a421 for positioning products provided on the first rotary table a42. The welding mechanism a45 adopts an existing laser welding machine, and the specific structure is not described again. The first rotary table a42 can be driven to rotate by a motor or the like. In addition, after the terminal welding is completed, the welding quality of the terminal is detected by a visual camera and a tension test device.

[0050] The rotary table is used to make the products pass through the transfer mechanism a43, the terminal feeding mechanism a44 and the welding mechanism a45 in sequence. The processed semi-finished gasification chamber is placed into the welding jig a421 in the first rotary table a42 by manual selection, then the terminal feeding mechanism a44 places the terminal into the welding jig, then the welding mechanism a45 welds the terminal and the semi-finished gasification chamber, and then the welded gasification chamber is placed into the transfer mechanism a43, and waits for the transfer device 1 to place it into the semi-finished product oiling device a5 for oiling. After the oiling is completed, the gasification chamber can be assembled with the bottom cover.

[0051] Specifically, the transfer mechanism a43 includes a transfer linear module a431, a transfer jig a432 arranged on the transfer linear module a431, and a transfer robot a433 arranged at the end of the transfer linear module a431 and used to transfer the product in the welding jig a421 to the transfer jig a432 after the welding is completed, at which time the transfer linear module a431 moves the product after the welding to the other end, waiting for the grabbing of the transfer device 1 to enter the next process.

[0052] The terminal feeding mechanism a44 includes a terminal vibrating disc a441, a distribution belt a442 arranged at the output end of the terminal vibrating disc a441, and a terminal taking robot a443 used to grab the terminals on the terminal distribution belt a442 into the welding jig a421. It should be noted that the welding jig a421 is provided with a groove for positioning the gasification chamber semi-finished product and the terminal, that is, the gasification chamber semi-finished product and the terminal are respectively placed in the corresponding positions.

[0053] Please refer to Figure 6 In the embodiment, the semi-finished product oiling device a5 includes a second machine table a51, which is provided with an oiling robot a52, a rotating table a53, and a turnover mechanism a54. The output end of the oiling robot a52 is provided with a plurality of oiling devices a55. The rotating table a53 is provided with a plurality of oiling jigs. The turnover mechanism a54 is used to grab the product in the oiling jig and turn it over. Specifically, the output end of the oiling robot a52 is connected with a plurality of oiling jigs through a mounting plate. The turnover mechanism a54 includes a mounting frame a541, a turnover driving member a542 arranged on the mounting frame a541, and a rotating shaft a543 connected with the output end of the turnover driving member a542. A plurality of suction members a544 are distributed at intervals on the rotating shaft a543.

[0054] In the embodiment, the transfer device 1 is used to place the welded gasification chamber into the oiling jig, and then the turnover mechanism a54 grabs the gasification chamber and turns it over to face the oiling device a55, and then the oiling robot a52 drives the oiling device a55 to oil the gasification chamber. The rotating table a53 is provided with a plurality of oiling jigs, which can be divided into two groups. The rotating table a53 rotates to enable the two groups of oiling jigs to alternately oil, thereby effectively improving the oiling efficiency of the gasification chamber. The number of oiling jigs in each group, the number of suction devices, and the number of oiling devices a55 are the same.

[0055] Specifically, the front assembly line A is provided with two transfer devices 1. The embodiment takes the front assembly of different series of electric irons as an example for illustration:

[0056] FS machine type: the artificial processing of the finished semi-finished gasification chamber is placed in the welding fixture a421 on the first turntable a42, the terminal loading mechanism a44 is grabbed to the welding fixture a421, the welding mechanism a45 is welded to the terminal and the semi-finished gasification chamber and is detected; then the material transfer device 1 is grabbed to the semi-finished oil coating device a5 after the welding of the gasification chamber, the oil coating effect is detected by the camera, the defective product is put into the defective product collection box; at the same time, the material transfer device 1 is grabbed from the first bottom cover supply platform a3 to the first flow transfer module a1, and the oil coated gasification chamber is assembled into the bottom cover, the assembled semi-finished product of the bottom cover and the gasification chamber is formed, and then it flows to the next process. This is the front processing and assembling process of the FS machine type.

[0057] GHK machine type: this machine type does not need to weld the terminal, so the artificial processing of the finished semi-finished gasification chamber is directly placed in the first flow transfer module a1, the material transfer device 1 is grabbed to the semi-finished oil coating device a5 for oil coating, the oil coating effect is detected by the camera, the defective product is put into the defective product collection box; at the same time, the material transfer device 1 is grabbed from the first bottom cover supply platform a3 to the first flow transfer module a1, and the oil coated gasification chamber is assembled into the bottom cover, the assembled semi-finished product of the bottom cover and the gasification chamber is formed, and then it flows to the next process. This is the front processing and assembling process of the GHK machine type.

[0058] Other machine types: other machine types do not need to be coated with oil or assembled with the bottom cover and the gasification chamber, and the finished semi-finished product is directly placed in the first flow transfer module a1 and enters the next process.

[0059] It should be noted that in order to facilitate the conveying and positioning of the product, the first flow transfer module a1 is also provided with a product fixture for placing the product.

[0060] Please refer to Figure 1 In the embodiment, the middle section assembly line B includes a second flow transfer module b1, and a first screw locking device b2, a cover body supply platform b3, and a cover body oil coating device b4 distributed on the side of the second flow transfer module b1. The end of the second flow transfer module b1 is further provided with a riveting device b5, a heating and insulation voltage detection device b6, a gasification promoting coating device b7, a cooling device b8, and a pressure leakage detection device b9 in sequence. Specifically, the second flow transfer module b1 has the same structure as the first flow transfer module a1, and the second flow transfer module b1 is connected to the first flow transfer module a1. The riveting device b5 is connected to the end of the second flow transfer module b1, and a transfer station b10 for storing products is further provided on one side of the riveting device b5. In addition, it should be noted that the first screw locking device b2, the cover body oil coating device b4, the riveting device b5, the heating and insulation voltage detection device b6, and the pressure leakage detection device b9 are each provided with a material transfer device 1, that is, the material transfer device 1 is used to transfer the product between different devices.

[0061] The assembly process of the middle assembly line B is as follows: the transfer device 1 picks up the semi-finished product assembled by the front assembly line A into the first screw locking device b2, then picks up the cover of the gasification chamber from the cover supply platform b3 into the cover oiling device b4 for oiling, picks up the oil-coated cover into the first screw locking device b2 again, locks the screws of the semi-finished product in the first screw locking device b2, and then places the semi-finished product with locked screws into the second flow transfer mold b1. Secondly, the transfer device 1 picks up the semi-finished product with assembled cover in the second flow transfer mold b1 and transfers it to the riveting device b5 for riveting. After riveting, the semi-finished product can be stored in line on the transfer table b10, and then enters the heating and insulation voltage detection device b6, the gasification promoting coating device b7, the cooling device b8 and the pressure leakage detection device b9 in turn, so as to complete the assembly and testing of the product.

[0062] Please refer to Figure 7 and Figure 8 In the embodiment, the first screw locking device b2 includes a third machine table b21, the third machine table b21 is provided with a second turntable b22 and two groups of screw locking mechanisms b23 arranged along the edge of the second turntable b22 in sequence; the screw locking mechanism b23 includes a screw locking machine b231 and a screw feeder b232, and the second turntable b22 is provided with a plurality of screw locking jigs b221 for positioning the product. Specifically, the second turntable b22 can be driven by a motor or the like. The screw locking machine b231 and the screw feeder b232 are conventional devices in existing devices, which mainly include a screw locking mechanical arm, an intelligent electric screwdriver arranged at the output end of the screw locking mechanical arm, a positioning camera and a light source. When locking screws on the product, the product is placed in the screw locking jig b221, the second turntable b22 drives the screw locking jig b221 to pass through the screw locking machine b231, at this time the screw locking mechanical arm drives the intelligent electric screwdriver to move to the screw locking jig b221 to lock screws on the product, wherein the positioning camera and the light source can accurately position the product.

[0063] The first screw locking device b2 of the embodiment adopts a double-station processing mode, that is, two screw locking mechanisms b23 are arranged at the edge of the second turntable b22, which can realize uninterrupted processing of the first screw locking device b2, that is, the occupation of space can be effectively saved, and the screw locking efficiency of the product can be improved.

[0064] Please refer to Figure 9In the embodiment, the riveting device b5 includes a riveting machine b51 and a first feeding mechanism b52 arranged on the riveting machine b51. The first feeding mechanism b52 includes a first sliding rail b521, a first sliding table b522 arranged on the first sliding rail b521, and a first driving member b523 for driving the first sliding table b522 to move. Specifically, the riveting machine b51 is a conventional device. When the riveting operation of the product is performed, the product is grabbed from the second flow transfer mold group b1 to the first sliding table b522 by the transfer device 1. The first sliding table b522 is provided with a jig for positioning the product. Then, the first driving member b523 drives the first sliding table b522 to move to the riveting machine b51 for riveting. After the riveting is completed, the product is transferred to the transfer table b10.

[0065] By integrating the first feeding mechanism b52, the automatic feeding of the riveting machine b51 is realized, which facilitates the grabbing and placing of the transfer device 1. The transfer device 1 does not need to extend into the interior of the riveting machine b51 to complete the feeding, which is convenient and fast, and can effectively improve the accuracy of riveting positioning.

[0066] Please refer to Figure 10 In the embodiment, the heating and insulation pressure detection device b6 includes a testing machine b61 and a second feeding mechanism b62 arranged on the testing machine b61. The second feeding mechanism b62 includes a second sliding rail b621, a second sliding table b622 arranged on the second sliding rail b621, and a second driving member (not shown in the figure) for driving the second sliding table b622 to move. Specifically, the testing machine b61 is a conventional device. Due to the space limitation of the equipment, the multi-axis robot 11 cannot grab the product. Therefore, the second feeding mechanism b62 is additionally arranged to realize the transfer of the product, so that the product can be effectively tested.

[0067] Therefore, by improving the testing machine b61 and adding the second feeding mechanism b62 on the testing machine b61, the grabbing and placing of the transfer device 1 can be facilitated, and the synchronous sliding in or out of multiple products can be realized, which effectively improves the processing efficiency of the product.

[0068] Please refer to Figure 11In the embodiment, the cooling device b8 comprises a fourth machine table b81, the fourth machine table b81 is provided with a cooling conveying line b82, the cooling conveying line b82 is provided with a cooling cover b83, and a plurality of fans b84 are installed on the cooling cover b83. Specifically, the cooling cover b83 is provided with a ventilation pipe, and the cooling cover b83 is provided with an inlet and an outlet at two ends along the cooling conveying direction, so as to facilitate the conveying of the product. The suction end of the fan b84 is opposite to the ventilation pipe, and the blowing end is opposite to the cooling conveying line b82. In addition, the cooling cover b83 is also provided with a visual camera, that is, the product on the cooling conveying line b82 is positioned by the visual camera. The cooling conveying line b82 is driven by a driving motor, and the driving motor is controlled by a frequency converter to realize intermittent flow. The cooling conveying line b82 adopts a Teflon mesh belt, which has the function of resisting high temperature.

[0069] A plurality of products can be placed on the cooling conveying line b82. In addition, by providing the cooling cover b83 above the cooling conveying line b82 and installing a plurality of fans b84, the product is cooled in all directions and efficiently. The forced convection of the fan b84 accelerates the air flow, effectively reduces the product temperature, shortens the cooling time, and improves the production efficiency.

[0070] Please refer to Figure 12 In the embodiment, the leakage detection device b9 comprises a fifth machine table b91, the fifth machine table b91 is provided with a test upper die b93 and a third sliding rail b92, the third sliding rail b92 is provided with a test lower die b94, the test lower die b94 can be moved under the test upper die b93 under the action of the third sliding rail b92, at this time, the test upper die b93 can be pressed on the test lower die b94, so as to complete the leakage detection of the product.

[0071] It should be noted that the cover oiling device b4 of the embodiment and the semi-finished product oiling device a5 have similar structures, and the jig and the oiling position can be flexibly adjusted according to the actual oiling position. The gasification promoting coating device b7 is an existing device, and in order to adapt to the processed product, only the water supply and wastewater recovery need to be modified. For example, a centralized water purification tank is added to deliver water to the water purification tank of each machine table. The water purification tank of each machine table is provided with a liquid level sensor, and when the water is insufficient, the water pump will pump water into the water purification tank of the device. A centralized wastewater tank is added to pump water from the wastewater tank of each device to the centralized wastewater tank. The wastewater tank of each machine table is provided with a liquid level sensor, and when the water is full, the water pump will pump water into the centralized wastewater tank.

[0072] Specifically, the embodiment takes the middle assembly of different series of electric irons as an example.

[0073] FS and GHK models: the transfer device 1 transfers the product from the first flow transfer module a1 to the first screw locking device b2, at the same time, the transfer device 1 transfers the cover of the gasification chamber from the cover supply platform b3 to the cover oiling device b4 for oiling, after the oiling is completed, the cover of the gasification chamber is transferred to the first screw locking device b2, and then the product is screwed, and after the screwing is completed, the product is transferred to the second flow transfer module b1. Then the product is sequentially riveted, heated and insulated pressure tested, gasification promoting coating, cooled and pressure leakage tested.

[0074] Other models: different from the above two models, the other models do not need the step of screwing. Therefore, the product is transferred from the first flow transfer module a1 to the second flow transfer module b1 by the transfer device 1, at the same time, the transfer device 1 transfers the cover of the gasification chamber from the cover supply platform b3 to the cover oiling device b4 for oiling, and then the product is assembled in the second flow transfer module b1 after the oiling is completed. Then the product is sequentially riveted, heated and insulated pressure tested, gasification promoting coating, cooled and pressure leakage tested.

[0075] Please refer to Figure 1 In the embodiment, the rear assembly line C includes the third flow transfer module c1, and the second bottom cover supply platform c2, the bottom cover oiling device c3 and the second screw locking device c4 distributed on the side of the third flow transfer module c1. Specifically, the bottom cover oiling device c3 is similar in structure to the semi-finished product oiling device a5 or the cover oiling device b4, and the position of the mold and oiling can be flexibly adjusted according to the actual need of the product to be oiled, for example, the bottom cover oiling device c3 does not need to be turned over by the turning mechanism a54, that is, the turning mechanism a54 can be omitted. Similarly, the second screw locking mechanism b23 is similar in structure to the first screw locking device b2, and the position of the second turntable b22 and the screw locking mechanism b23 can be flexibly adjusted according to the actual need of the product to be screwed.

[0076] It should be noted that the rear assembly line C is an adjustment of the function of the front assembly line A, that is, in the assembly of the second product series, the bottom cover needs to be oiled, so the assembly of the bottom cover and the gasification chamber is ingeniously placed in the rear assembly line C for further improving the application range of the overall assembly line.

[0077] Specifically, the embodiment takes the rear assembly of different series of electric irons as an example.

[0078] W and WL and GHF025 models: the bottom plate cover of the series of products also needs to be oiled, so it is not suitable for the products assembled in the assembly process of the front assembly line A. Therefore, the bottom plate is not assembled first, and the product is assembled normally in the middle assembly line B. Subsequently, the bottom plate cover suitable for the product is grabbed from the second bottom plate cover feeding platform c2 to the bottom plate cover oiling device c3 through the material transfer device 1 for oiling. After oiling, the bottom plate cover is grabbed to the second screw locking device c4, and then the semi-finished product in the leak test device is grabbed to the second screw locking device c4, and then the product is locked. After screw locking, it is transferred to the third flow transfer module c1 for discharging.

[0079] Other models: for other series of products, only the product in the leak test device needs to be transferred to the third flow transfer module c1 for discharging.

[0080] In the description of the present application, it should be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0081] In addition, the terms "first", "second" are only for description purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0082] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic assembly line, characterized by, The assembly line comprises a front assembly line, a middle assembly line and a rear assembly line arranged in sequence along the conveying direction of the product; the front assembly line, the middle assembly line and the rear assembly line are each equipped with a plurality of material transfer devices, the material transfer device comprising a multi-axis robot, a material taking clamp arranged at the output end of the multi-axis robot, and a clamp library; the output end of the multi-axis robot is detachably connected with the material taking clamp through a quick change module, the material taking clamp comprising a connecting plate and two grabbing modules arranged on the connecting plate, and the quick change module is connected with the output end of the multi-axis robot and the connecting plate respectively; The clamp library of the front assembly line stores the material taking clamp of the first product series, the clamp library of the middle assembly line stores the material taking clamp of the full product series, and the clamp library of the rear assembly line stores the material taking clamp of the second product series.

2. The automatic assembly line according to claim 1, characterized in that, The front assembly line comprises a first flow transfer module and a feeding platform for conveying semi-finished products, and a first bottom plate cover feeding platform, a terminal welding device and a semi-finished product oiling device distributed on the side of the first flow transfer module.

3. The automatic assembly line according to claim 2, characterized in that, The terminal welding device comprises a first machine table, a first rotary table arranged on the first machine table, a transfer mechanism, a terminal feeding mechanism and a welding mechanism arranged in sequence on the edge of the first rotary table, and a plurality of welding jigs for positioning the product are arranged on the first rotary table.

4. The automatic assembly line according to claim 2, characterized in that, The semi-finished product oiling device comprises a second machine table, an oiling manipulator, a rotary table and a turnover mechanism arranged on the second machine table, the output end of the oiling manipulator is provided with a plurality of oiling devices, a plurality of oiling jigs are arranged on the rotary table, and the turnover mechanism is used for grabbing the product in the oiling jig and turning over.

5. The automatic assembly line according to claim 1, characterized in that, The middle assembly line comprises a second flow transfer module, and a first screw locking device, a cover body feeding platform and a cover body oiling device distributed on the side of the second flow transfer module, and the end of the second flow transfer module is further provided with a riveting device, a heating and insulation voltage detection device, a gasification promoting coating device, a cooling device and a pressure leakage detection device in sequence.

6. The automatic assembly line according to claim 5, characterized in that, The first screw locking device comprises a third machine table, a second rotary table arranged on the third machine table, and two groups of screw locking mechanisms arranged in sequence on the edge of the second rotary table; the screw locking mechanism comprises a screw locking machine and a screw feeder, and a plurality of screw locking jigs for positioning the product are arranged on the second rotary table.

7. The automatic assembly line according to claim 5, characterized in that, The riveting device comprises a riveting machine and a first feeding mechanism arranged on the riveting machine, the first feeding mechanism comprising a first sliding rail, a first sliding table arranged on the first sliding rail, and a first driving member for driving the first sliding table to move.

8. The automatic assembly line according to claim 5, characterized in that, The heating and insulation voltage detection device comprises a testing machine and a second feeding mechanism arranged on the testing machine, the second feeding mechanism comprising a second sliding rail, a second sliding table arranged on the second sliding rail, and a second driving member for driving the second sliding table to move.

9. The automatic assembly line according to claim 5, characterized in that, The cooling device comprises a fourth machine table, a cooling conveying line arranged on the fourth machine table, a cooling cover arranged on the cooling conveying line, and a plurality of fans mounted on the cooling cover.

10. The automatic assembly line according to claim 1, characterized in that, The rear assembly line comprises a third flow transfer mold module, a second bottom cover feeding platform, a bottom cover oiling device and a second screw locking device distributed on the side of the third flow transfer mold module.

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