Welding equipment for explosion-proof piece bottom cover and plastic plate

Abstract

The utility model provides welding equipment for an anti-explosion piece bottom cover and a plastic plate. The welding equipment comprises a machine box, a bottom cover feeding conveying mechanism, a bottom cover transfer carrying mechanical arm, a finished product discharging conveying mechanism and two welding modules, wherein the bottom cover feeding conveying mechanism, the bottom cover transfer carrying mechanical arm, the finished product discharging conveying mechanism and the two welding modules are installed on the machine box. The bottom cover feeding and conveying mechanism is longitudinally arranged in the middle of the front side of the machine box and used for controlling a bottom cover to be conveyed backwards. The finished product discharging and conveying mechanism is longitudinally arranged in the middle of the rear side of the machine box and used for controlling the finished products to be conveyed backwards. The two welding modules are the same in structure and symmetrically distributed on the left side and the right side of the machine box. The bottom cover transfer carrying mechanical arm is arranged on the rear side of the bottom cover feeding and conveying mechanism and used for carrying a bottom cover at the rear end of the bottom cover feeding and conveying mechanism to the two welding modules, in the welding modules, direction detection of the bottom cover and feeding and direction detection of a plastic plate are achieved, and the plastic plate is assembled on the bottom cover to be subjected to ultrasonic hot melting welding and fixing. And after welding is completed, the OK-welded finished product is placed in the finished product discharging and conveying mechanism to be conveyed out.

Description

Technical Field

[0001] This utility model relates to the technical field of explosion-proof valve processing equipment, and in particular to a welding equipment for explosion-proof plate bottom cover and plastic plate. Background Technology

[0002] During the processing of explosion-proof valves, the bottom cover and plastic sheet of the valve need to be fixed by hot-melt welding. In the past, it was necessary to manually pre-install the plastic sheet on the bottom cover and then put the assembled product into an ultrasonic welding machine for fixing. The ultrasonic welding machine welded the product. This method has low production efficiency and cannot meet production needs. Although there are now automatic welding equipment, the explosion-proof sheet and bottom cover of this product are prone to being assembled in the wrong direction during the automatic assembly process, resulting in defective products after welding. Therefore, improvements are still needed. Utility Model Content

[0003] The purpose of this invention is to provide a welding device for an explosion-proof sheet bottom cover and a plastic sheet to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A welding equipment for explosion-proof sheet bottom cover and plastic sheet includes a chassis and a bottom cover feeding and conveying mechanism, a bottom cover transfer and handling robot, a finished product discharge and conveying mechanism and two sets of welding modules installed on the chassis;

[0006] The bottom cover feeding and conveying mechanism is longitudinally arranged in the middle of the front side of the machine box, and is used to control the bottom cover to be conveyed backward.

[0007] The finished product discharge conveying mechanism is longitudinally arranged in the middle of the rear side of the chassis and is used to control the rearward conveying of finished products;

[0008] The two sets of welding modules have the same structure and are symmetrically distributed on the left and right sides of the chassis;

[0009] The welding module on the left includes a horizontally arranged bottom cover inspection and handling robot, a bottom cover transfer receiving platform, a bottom cover OK receiving platform, and a bottom cover NG receiving platform arranged sequentially from right to left and located behind the bottom cover inspection and handling robot, a bottom cover positioning and assembly platform, a welding placement platform, and a finished product transfer platform arranged sequentially from front to back behind the bottom cover OK receiving platform, a three-head synchronous handling robot located to the right of the bottom cover OK receiving platform, the bottom cover positioning and assembly platform, the welding placement platform, and the finished product transfer platform, a plastic sheet NG receiving box located to the left of the bottom cover positioning and assembly platform, a plastic sheet feeding mechanism located to the left of the plastic sheet NG receiving box, and a horizontal span across the plastic sheet feeding mechanism and the plastic sheet NG receiving box. The system includes a plastic sheet inspection and handling robot on the bottom cover positioning and assembly platform, an ultrasonic welding machine located next to the welding placement platform, welding NG receiving platforms located on the left and right sides of the finished product transfer platform, and a finished product unloading and handling robot located behind the finished product transfer platform and the welding NG receiving platform. The bottom cover inspection and handling robot is equipped with a first inspection component to detect whether the front-to-back direction of the bottom cover is correct. The bottom cover positioning and assembly platform is equipped with a second inspection component to detect whether there are gaps in the assembly of the plastic sheet onto the bottom cover, thereby determining whether the front and back directions of the plastic sheet are correct. The plastic sheet inspection and handling robot is equipped with a third inspection component to detect whether the front-to-back direction of the plastic sheet is correct.

[0010] The bottom cover transfer and handling robot is located behind the bottom cover feeding and conveying mechanism, and is used to transport the bottom cover at the rear end of the bottom cover feeding and conveying mechanism to the bottom cover transfer and receiving platform of the two welding modules.

[0011] Further description of this utility model: the bottom cover transfer and handling robot includes a first mounting frame, a first X-axis drive device, a first Z-axis drive device, a first mounting plate, and two sets of first handling heads; the first mounting frame is fixed on the chassis; the first X-axis drive device is mounted on the first mounting frame and its power output end is connected to the first Z-axis drive device; the first mounting plate is mounted on the power output end of the first Z-axis drive device; the two sets of first handling heads are respectively mounted on the left and right ends of the first mounting plate; the first handling head includes a first rotary drive device and a first adsorption component; the first rotary drive device is mounted on the first mounting plate and its power output end is connected to the first adsorption component.

[0012] Further description of this utility model: the bottom cover detection and handling robot includes a second mounting frame, a second X-axis drive device, a second Z-axis drive device, and a second adsorption assembly; the second mounting frame is mounted on a chassis; the second X-axis drive device is mounted on the second mounting frame and its power output end is connected to the second Z-axis drive device; the second adsorption assembly is mounted on the power output end of the second Z-axis drive device; the first detection element is an infrared sensor; the first detection element is vertically mounted in the middle and rear part of the second adsorption assembly and is used to detect the position of the liquid injection hole of the bottom cover.

[0013] Further description of this utility model: the three-head synchronous handling robot includes a first Y-axis drive device, a third Z-axis drive device, a third X-axis drive device, a second mounting plate, and three sets of handling grippers; the first Y-axis drive device is mounted on the chassis and its power output end is connected to the third Z-axis drive device; the third X-axis drive device is mounted on the power output end of the third Z-axis drive device; the second mounting plate is mounted on the power output end of the third X-axis drive device; the three sets of handling grippers are distributed front to back on the second mounting plate; the three sets of handling grippers are divided into a first handling gripper, a second handling gripper, and a third handling gripper from front to back; the first handling gripper is used to pick up materials from the bottom cover OK receiving platform and transport them to the bottom cover positioning assembly platform; the second handling gripper is used to pick up materials from the bottom cover positioning assembly platform and transport them to the welding placement platform; the third handling gripper is used to pick up materials from the welding placement platform and transport them to the finished product transfer platform.

[0014] Further description of this utility model: the bottom cover positioning assembly platform includes a support base, an X-axis clamping and positioning cylinder, and two sets of Y-axis positioning cylinders; the support base is fixed on the chassis; the X-axis clamping and positioning cylinder is installed at the middle position above the support base; two first support plates symmetrically distributed on the left and right are installed on the power output end of the X-axis clamping and positioning cylinder; a first limiting block is provided on the first support plate; a second support plate is installed on the power output end of the two sets of Y-axis positioning cylinders respectively; a second limiting block is provided on the second support plate; the second detection component is an infrared sensor; the second detection component is horizontally installed on the left side of the support base via a support; the detection end of the second detection component is set to the left, and the bottom cover is determined to be installed backwards by detecting whether there is a gap between the assembled bottom cover and the plastic plate.

[0015] Further description of this utility model: the plastic sheet feeding mechanism includes a conveying device, a plastic sheet carrier, a carrier clamping device, and a lifting device; the conveying device includes a conveyor belt mounting frame, a conveyor belt, a drive shaft, a driven shaft, and a conveyor belt drive device; the drive shaft is installed at the front end of the conveyor belt mounting frame; the driven shaft is installed at the rear end of the conveyor belt mounting frame; pulleys are respectively provided at the left and right ends of the drive shaft and the driven shaft; two conveyor belts are provided; the two conveyor belts are respectively connected to two opposite pulleys; a plurality of positioning protrusions are evenly distributed on the outer side of the conveyor belt; a positioning groove is formed between two adjacent positioning protrusions; the position below the plastic sheet detection and handling robot in the conveying device is the material picking station; multiple plastic sheet carriers are provided, including a carrier plate, a positioning rod, and a support plate; the carrier plate is used to be placed between two conveyor belts and positioned by the positioning groove; the carrier plate is provided with two positioning rods. Positioning pins; two positioning rods are provided and distributed front and back; the bottom of the positioning rods is slidably connected to the carrier plate by a slider; the pallet is provided with positioning holes that cooperate with the positioning pins; the middle of the pallet is provided with a waist-shaped clearance hole for the positioning rods to pass through; the pallet is positioned above the carrier plate by cooperating with the positioning pins through the positioning holes; the carrier clamping device is provided at the material picking station and includes two clamping cylinders; the two clamping cylinders are symmetrically fixed on the conveyor belt mounting frame; the power output end of the clamping cylinder is connected to a clamping block; the lifting device is provided at the material picking station and includes a connecting frame, a lifting drive device, a lifting plate and a top rod; the connecting frame is fixed to the bottom of the conveyor belt mounting frame; the lifting drive device is installed on the connecting frame and its power output end is connected to the lifting plate; four top rods are provided and distributed at the four corners above the lifting plate; the top rods can pass through an overload plate to control the lifting of the pallet.

[0016] In a further description of this utility model, V-shaped grooves are respectively provided at the middle positions of the left and right ends of the carrier plate; two handles are provided on the carrier plate that are symmetrically distributed on the left and right; and V-shaped protrusions that cooperate with the V-shaped grooves are provided on the clamping block.

[0017] Further description of this utility model: the plastic sheet inspection and handling robot includes a third mounting frame, a fourth X-axis drive device, a fourth Z-axis drive device, a second rotary drive device, and a third adsorption assembly; the third mounting frame is fixed on the chassis; the fourth X-axis drive device is mounted on the third mounting frame and its power output end is connected to the fourth Z-axis drive device; the second rotary drive device is mounted on the power output end of the fourth Z-axis drive device; the third adsorption assembly is mounted on the power output end of the second rotary drive device; the third detection element is mounted on the front-middle side of the third adsorption assembly; the third detection element is a suction nozzle; during the plastic sheet inspection and handling robot's handling of the plastic sheet, the third detection element simultaneously adsorbs the plastic sheet. When the plastic sheet is oriented correctly, the third detection element can normally adsorb the plastic sheet and has a set adsorption pressure value; when the plastic sheet is oriented incorrectly, the third detection element cannot adsorb the plastic sheet, and the third detection element is in an air-pressure state, which indicates that the plastic sheet is oriented incorrectly.

[0018] The beneficial effects of this utility model are as follows:

[0019] This design uses a bottom cover feeding and conveying mechanism to feed the bottom cover, and then a bottom cover transfer and handling robot sequentially transports the bottom covers from the feeding and conveying mechanism to the bottom cover transfer and receiving platforms of two welding modules. The two welding modules work synchronously to improve production efficiency. In the welding modules, after the bottom cover inspection and handling robot picks up the bottom cover from the transfer and receiving platform, it checks the front-to-back orientation of the bottom cover using a first inspection piece. If the bottom cover is in the correct orientation, it is placed on the bottom cover OK receiving platform; otherwise, it is placed on the bottom cover N receiving platform. On the G receiving platform, a three-head synchronous handling robot picks up materials from the OK receiving platform and places them on the bottom cover positioning and assembly platform. After the bottom cover is positioned on the bottom cover positioning and assembly platform, it awaits the assembly of the plastic sheet. The plastic sheet feeding mechanism feeds the plastic sheet. After the plastic sheet inspection and handling robot takes the plastic sheet from the plastic sheet feeding mechanism, it uses a third inspection device to inspect the plastic sheet to determine if the front-back orientation of the plastic sheet is correct. If the front-back orientation is correct, the plastic sheet is directly transported to the bottom cover positioning and assembly platform for assembly with the bottom cover. If the inspection is incorrect, it is transported to the plastic sheet... Inside the NG receiving box, after assembly, a second inspection component checks for gaps between the bottom cover and the plastic sheet. If a gap exists, the plastic sheet is considered reversed. The plastic sheet inspection and handling robot places the plastic sheet into the NG receiving box. If no gap is detected, the assembly is correct. A three-head synchronous handling robot removes the assembled bottom cover and plastic sheet from the bottom cover positioning assembly platform and transports them to the welding placement platform. An ultrasonic welding machine performs heat fusion welding on the plastic sheet onto the bottom cover and checks if the welding is OK. After welding, the three-head synchronous handling robot removes the welded finished product from the welding placement platform and transports it to the finished product transfer platform. The finished product unloading and handling robot retrieves the product from the finished product transfer platform and, based on whether the product is welded OK or NG, places it in the welding NG receiving platform or the finished product unloading conveyor mechanism, respectively. Finally, the finished product unloading conveyor mechanism delivers the welded OK product. This design can automatically complete the automatic assembly and welding process of the bottom cover and plastic sheet, and identify whether the product orientation is correct, ensuring that welding can be performed correctly after assembly, thus improving the yield rate. Attached Figure Description

[0020] Figure 1 This is a top view of the overall structure of this utility model;

[0021] Figure 2 This is a structural diagram of the bottom cover transfer and handling robot of this utility model;

[0022] Figure 3 This is a structural diagram of the bottom cover detection and handling robot of this utility model from the rear view.

[0023] Figure 4 This is a partial structural diagram of the welding module of this utility model;

[0024] Figure 5This is a structural diagram of the three-head synchronous handling robot of this utility model;

[0025] Figure 6 This is a structural diagram of the bottom cover positioning and assembly platform of this utility model;

[0026] Figure 7 This is a structural diagram of the plastic sheet inspection and handling robot of this utility model;

[0027] Figure 8 This is a structural diagram of the plastic sheet feeding mechanism of this utility model;

[0028] Figure 9 This is a structural diagram of the conveyor belt of this utility model;

[0029] Figure 10 This is a structural diagram of the plastic sheet carrier of this utility model. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] like Figure 1-10 As shown, a welding equipment for explosion-proof sheet bottom cover and plastic sheet includes a chassis 1, a bottom cover feeding and conveying mechanism 2, a bottom cover transfer and handling robot 3, a finished product discharge and conveying mechanism 4, and two sets of welding modules 5 installed on the chassis 1.

[0032] The bottom cover feeding conveyor 2 is longitudinally arranged in the middle of the front side of the machine box 1. It is used to control the bottom cover to be conveyed backward. The bottom cover is placed at the front end of the bottom cover feeding conveyor 2 from the previous process, and the bottom cover is fed backward by the bottom cover feeding conveyor 2.

[0033] The finished product discharge conveying mechanism 4 is longitudinally arranged in the middle of the rear side of the chassis 1. It is used to control the rearward conveying of finished products. OK products that have been welded by the welding module 5 are sent out through the finished product discharge conveying mechanism 4.

[0034] The two sets of welding modules 5 have the same structure and are symmetrically distributed on the left and right sides of the chassis 1; by processing the two sets of welding modules 5 simultaneously, production efficiency is improved.

[0035] The welding module 5 on the left side includes a horizontally arranged bottom cover inspection and handling robot 501, a bottom cover transfer receiving platform 502, a bottom cover OK receiving platform 503, and a bottom cover NG receiving platform 504 arranged sequentially from right to left and located behind the bottom cover inspection and handling robot 501, a bottom cover positioning and assembly platform 505, a welding placement platform 506, and a finished product transfer platform 507 arranged sequentially from front to back behind the bottom cover OK receiving platform 503, a three-head synchronous handling robot 508 located to the right of the bottom cover OK receiving platform 503, bottom cover positioning and assembly platform 505, welding placement platform 506, and finished product transfer platform 507, a plastic sheet NG receiving box 509 located to the left of the bottom cover positioning and assembly platform 505, a plastic sheet feeding mechanism 510 located to the left of the plastic sheet NG receiving box 509, and a plastic sheet feeding mechanism 510 horizontally spanning the plastic sheet feeding mechanism 510 and the plastic sheet NG receiving box 509. The system includes a plastic sheet inspection and handling robot 511 on the box 509 and bottom cover positioning assembly platform 505, an ultrasonic welding machine 512 located beside the welding placement platform 506, a welding NG receiving platform 513 located on the left and right sides of the finished product transfer platform 507, and a finished product unloading and handling robot 514 located behind the finished product transfer platform 507 and the welding NG receiving platform 513. The bottom cover inspection and handling robot 501 has a first inspection component 5011 for detecting whether the front-back direction of the bottom cover is correct. The bottom cover positioning assembly platform 505 has a second inspection component 5051 for detecting whether there is a gap in the assembly of the plastic sheet on the bottom cover, thereby determining whether the front and back directions of the plastic sheet are correct. The plastic sheet inspection and handling robot 511 has a third inspection component 5111 for detecting whether the front-back direction of the plastic sheet is correct.

[0036] like Figure 1-2 As shown, the bottom cover transfer and handling robot 3 is located on the rear side of the bottom cover feeding and conveying mechanism 2, and is used to transport the bottom cover at the rear end of the bottom cover feeding and conveying mechanism 2 to the bottom cover transfer and receiving platform 502 of the two sets of welding modules 5.

[0037] The bottom cover transfer and handling robot 3 includes a first mounting frame 31, a first X-axis drive device 32, a first Z-axis drive device 33, a first mounting plate 34, and two sets of first handling heads 35. The first mounting frame 31 is fixed to the chassis 1. The first X-axis drive device 32 is mounted on the first mounting frame 31 and its power output end is connected to the first Z-axis drive device 33. The first mounting plate 34 is mounted on the power output end of the first Z-axis drive device 33. The two sets of first handling heads 35 are respectively mounted on the left and right ends of the first mounting plate 34. The first handling head 35 includes a first rotary drive device 351 and a first suction component 352. The first rotary drive device 351 is mounted on the first mounting plate 34 and its power output end is connected to the first Z-axis drive device 33. The force output end is connected to the first adsorption component 352. The bottom cover in the bottom cover feeding and conveying mechanism 2 is fed in horizontally. When the bottom cover is being transported, the bottom cover transfer and handling robot 3 controls the position of the first handling head 35 through the linkage of the first X-axis drive device 32 and the first Z-axis drive device 33. The first handling head 35 controls the first adsorption component 352 to rotate 90° through the first rotation drive device 351. After adjusting the bottom cover to a longitudinal state, it is placed on the bottom cover transfer and receiving platform 502. In this design, the bottom cover transfer and handling robot 3 is equipped with two sets of first handling heads 35. The two handling heads take materials from the bottom cover feeding and conveying mechanism 2 alternately and place them on the bottom cover transfer and receiving platforms 502 of the two sets of welding modules 5 respectively, thereby improving efficiency.

[0038] like Figure 3 As shown, the bottom cover detection and handling robot 501 includes a second mounting frame 5012, a second X-axis drive device 5013, a second Z-axis drive device 5014, and a second adsorption assembly 5015. The second mounting frame 5012 is mounted on the housing 1. The second X-axis drive device 5013 is mounted on the second mounting frame 5012 and its power output end is connected to the second Z-axis drive device 5014. The second adsorption assembly 5015 is mounted on the power output end of the second Z-axis drive device 5014. The first detection element 5011 is an infrared sensor. The first detection element 5011 is vertically mounted on the second adsorption assembly. The middle and rear part of component 5015 is used to detect the position of the liquid injection hole of the bottom cover. The second X-axis drive device 5013 and the second Z-axis drive device 5014 are linked to control the movement of the second adsorption component 5015. The second adsorption component 5015 picks up the material from the transfer receiving platform 502 in the bottom cover. After picking up the material, the first detection component 5011 detects whether there is a liquid injection hole on the bottom cover at that position. If the infrared light emitted by the first detection component 5011 can penetrate the bottom cover, the bottom cover is in the correct position and the bottom cover is placed on the bottom cover OK receiving platform 503. If the infrared light is blocked by the bottom cover, the bottom cover is in the wrong position and the bottom cover is placed on the bottom cover NG receiving platform 504.

[0039] like Figure 5As shown, the three-head synchronous handling robot 508 includes a first Y-axis drive device 5081, a third Z-axis drive device 5082, a third X-axis drive device 5083, a second mounting plate 5084, and three sets of handling grippers 5085. The first Y-axis drive device 5081 is mounted on the housing 1 and its power output end is connected to the third Z-axis drive device 5082. The third X-axis drive device 5083 is mounted on the power output end of the third Z-axis drive device 5082. The second mounting plate 5084 is mounted on the power output end of the third X-axis drive device 5083. The three sets of handling grippers 5085 are distributed front to back on the second mounting plate 5084. The three sets of handling grippers 5085 are divided from front to back into a first handling gripper 50851, a second handling gripper 50852, and a third handling gripper. 50853; The first transport chuck 50851 is used to pick up materials from the bottom cover OK receiving platform 503 and transport them to the bottom cover positioning assembly platform 505; the second transport chuck 50852 is used to pick up materials from the bottom cover positioning assembly platform 505 and transport them to the welding placement platform 506; the third transport chuck 50853 is used to pick up materials from the welding placement platform 506 and transport them to the finished product transfer platform 507. The first Y-axis drive device 5081, the third Z-axis drive device 5082 and the third X-axis drive device 5083 are linked to control the position of the second mounting plate 5084. The three sets of transport chucks 5085 synchronously transport workpieces between the bottom cover OK receiving platform 503, the bottom cover positioning assembly platform 505, the welding placement platform 506 and the finished product transfer platform 507, improving efficiency through synchronous transport.

[0040] like Figure 6As shown, the bottom cover positioning assembly platform 505 includes a support base 5052, an X-axis clamping and positioning cylinder 5053, and two sets of Y-axis positioning cylinders 5054. The support base 5052 is fixed on the chassis 1. The X-axis clamping and positioning cylinder 5053 is installed at the middle position above the support base 5052. Two first support plates 50531 are symmetrically distributed on the left and right sides of the power output end of the X-axis clamping and positioning cylinder 5053. A first limit block 50532 is provided on the first support plate 50531. The power output ends of the two sets of Y-axis positioning cylinders 5054 are respectively equipped with a first limit block 50532. A second support plate 50541; a second limiting block 50542 is provided on the second support plate 50541; the second detection element 5051 adopts an infrared sensor; the second detection element 5051 is horizontally installed on the left side of the support base 5052 via a support 50511; the detection end of the second detection element 5051 is set to the left, and the bottom cover is judged to be installed backwards by detecting whether there is a gap between the assembled bottom cover and the plastic plate. The two ends of the plastic plate have upward protruding protrusions. When the plastic plate is assembled onto the bottom cover with the reverse side facing upwards, the protrusions support the bottom cover downwards, and the middle part of the plastic plate is supported. The heightening of the plastic sheet creates a large gap between it and the bottom cover. Therefore, if the infrared light from the second detection component 5051 is blocked by the plastic sheet, the orientation of the plastic sheet is considered correct; if the infrared light passes through the plastic sheet, the orientation is considered incorrect. When the bottom cover is placed on the bottom cover positioning assembly platform 505, it is supported by the first support plate 50531 and the second support plate 50541. Then, the X-axis clamping and positioning cylinder 5053 controls the two first support plates 50531 to move closer together, causing the two first limit blocks 50532 to abut against the left and right sides of the bottom cover to position it in the left and right directions. Simultaneously, two sets of Y-axis... The positioning cylinder 5054 also works synchronously to control the two second support plates 50541 to move closer, so that the two second limit blocks 50542 abut against the front and rear sides of the bottom cover to position the bottom cover in the front and rear direction, thus achieving the positioning of the bottom cover and waiting for the assembly of the plastic sheet. When the plastic sheet is assembled on the bottom cover, the second detection component 5051 checks whether the assembly is OK. If the assembly is OK, it waits for material to be picked up. If the assembly is NG, the plastic sheet detection and handling robot 511 will transport the plastic sheet to the plastic sheet NG receiving box, and then proceed to assemble the next plastic sheet until the assembly is correct, thus avoiding the delivery of incorrectly assembled products.

[0041] like Figure 8-10As shown. The plastic sheet feeding mechanism 510 includes a conveying device 5101, a plastic sheet carrier 5102, a carrier clamping device 5103, and a lifting device 5104; the conveying device 5101 includes a conveyor belt mounting frame 51011, a conveyor belt 51012, a drive shaft (not shown), a driven shaft (not shown), and a conveyor belt drive device 51013; the drive shaft is installed at the front end of the conveyor belt mounting frame 51011; the driven shaft is installed at the rear end of the conveyor belt mounting frame 51011; pulleys are respectively provided at the left and right ends of the drive shaft and the driven shaft; two conveyor belts 51012 are provided; the two conveyor belts 51012 are respectively connected to two opposite pulleys at the front and rear; the conveyor belt... Several positioning protrusions 51012-1 are evenly distributed on the outer side of the conveyor belt 51012; a positioning groove 51012-2 is formed between two adjacent positioning protrusions 51012-1; the position below the plastic sheet inspection and handling robot 511 in the conveying device 5101 is the material picking station; multiple plastic sheet carriers 5102 are provided, including a carrier plate 51021, a positioning rod 51022, and a support plate 51023; the carrier plate 51021 is used to be placed between two conveyor belts 51012 and positioned by the positioning groove 51012-2; two positioning pins 51021-1 are provided on the carrier plate 51021; two positioning rods 51022 are provided and distributed front and back; The bottom of the positioning rod 51022 is slidably connected to the carrier plate 51021 via a slider 51022-1; the support plate 51023 is provided with a positioning hole 51023-1 that mates with the positioning pin 51021-1; the middle of the support plate 51023 is provided with a waist-shaped clearance hole 51023-2 for the positioning rod 51022 to pass through; the support plate 51023 is positioned above the carrier plate 51021 through the positioning hole 51023-1 and the positioning pin 51021-1; the carrier clamping device 5103 is set at the material picking station and includes two clamping cylinders 51031; the two clamping cylinders 51031 are symmetrically fixed to the conveyor belt mounting frame 51. On 011; the power output end of the clamping cylinder 51031 is connected to a clamping block 51032; the lifting device 5104 is set on the material picking station, including a connecting frame 51041, a lifting drive device 51042, a lifting plate 51043, and a top rod 51044; the connecting frame 51041 is fixed to the bottom of the conveyor belt mounting frame 51011; the lifting drive device 51042 is installed on the connecting frame 51041 and its power output end is connected to the lifting plate 51043; four top rods 51044 are provided and distributed at the four corners above the lifting plate 51043; the top rods 51044 can be passed through an overload plate 51021 for controlling the lifting of the pallet 51023;Plastic sheets are stacked on a plastic sheet carrier 5102 and positioned by two positioning rods 51022 inserted into two round holes in the plastic sheets. The bottom plastic sheets are supported by a support plate 51023. The plastic sheet carrier 5102 is then placed laterally on two conveyor belts 51012 from the rear end of the conveying device 5101, and positioned by the positioning grooves 51012-2 of the two conveyor belts 51012. The conveyor belt drive device 51013 controls the operation of the conveyor belts 51012, which drive the plastic sheet carrier 5102 forward. When the plastic sheet carrier 5102 is transported to the picking station, two clamping cylinders 51031 clamp and position the plastic sheet carrier 5102 at the picking station from the left and right ends, respectively, and then the device is lifted and installed. In container 5104, the lifting drive device 51042 controls the lifting plate 51043 to rise, driving the top rod 51044 to pass through the overload plate 51021 and abut against the bottom of the pallet 51023. This controls the pallet 51023 to gradually rise, allowing the plastic sheet inspection and handling robot 511 to pick up the material. After each plastic sheet is removed, the pallet 51023 rises by the thickness of one plastic sheet. Once all the material in the plastic sheet carrier 5102 has been removed, the lifting device 5104 and the carrier clamping device 5103 reset, ready to position and lift the next set of plastic sheet carriers 5102 for feeding. An operator manually removes the empty plastic sheet carrier 5102 from the front end of the conveyor belt 51012, fills it with material, and then places it at the rear end of the conveyor belt 51012 for repeated feeding.

[0042] The carrier plate 51021 has V-shaped grooves 51021-2 at the middle of its left and right ends respectively; the carrier plate 51021 has two handles 51021-3 symmetrically distributed on the left and right sides; the clamping block 51032 has V-shaped protrusions that cooperate with the V-shaped grooves 51021-2. The V-shaped protrusions are pressed into the V-shaped grooves 51021-2 to improve the positioning accuracy and stability of the carrier plate 51021. The handles 51021-3 on the carrier plate 51021 facilitate manual handling.

[0043] like Figure 7As shown, the plastic sheet inspection and handling robot 511 includes a third mounting frame 5113, a fourth X-axis drive device 5114, a fourth Z-axis drive device 5115, a second rotary drive device 5112, and a third adsorption assembly 5116. The third mounting frame 5113 is fixed on the housing 1. The fourth X-axis drive device 5114 is mounted on the third mounting frame 5113 and its power output end is connected to the fourth Z-axis drive device 5115. The second rotary drive device 5112 is mounted on the power output end of the fourth Z-axis drive device 5115. The third adsorption assembly 5116 is mounted on the power output end of the second rotary drive device 5112. The third detection element 5111 is mounted on the front-middle side of the third adsorption assembly 5116. The third detection element 5111 is a suction nozzle. The fourth X-axis drive device 5114 and the fourth Z-axis drive device are connected. The third adsorption component 5116 is positioned by linkage control 5115, and the second rotary drive device 5112 controls the rotation of the third adsorption component 5116. Since the feeding direction of the plastic sheet is different from the loading assembly direction, after the material is picked up, the plastic sheet is rotated 90° by the second rotary drive device 5112 before loading. During the plastic sheet inspection and handling robot 511 handling the plastic sheet, the third detection component 5111 simultaneously adsorbs the plastic sheet. The front middle part of the plastic sheet has a flat structure, and the rear middle part has an upward protruding structure. When the plastic sheet is in the correct direction, the third detection component can normally adsorb the plastic sheet and has a set adsorption pressure value. When the plastic sheet is in the wrong direction, the third detection component adsorbs at the position of the protruding structure, and gas can directly enter the suction nozzle from the outside. The third detection component is in an air pressure state, which means that the plastic sheet is in the wrong direction. Then the plastic sheet is directly placed into the plastic sheet NG receiving box 509.

[0044] The above description does not limit the technical scope of this invention. Any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this invention shall still fall within the scope of the technical solution of this invention.

Claims

1. A welding device for an explosion-proof sheet bottom cover and a plastic plate, characterized in that: It includes a chassis and a bottom cover feeding conveyor mechanism, a bottom cover transfer and handling robot, a finished product discharge conveyor mechanism, and two sets of welding modules mounted on the chassis; The bottom cover feeding and conveying mechanism is longitudinally arranged in the middle of the front side of the machine box, and is used to control the bottom cover to be conveyed backward. The finished product discharge conveying mechanism is longitudinally arranged in the middle of the rear side of the chassis and is used to control the rearward conveying of finished products; The two sets of welding modules have the same structure and are symmetrically distributed on the left and right sides of the chassis; The welding module on the left includes a horizontally arranged bottom cover inspection and handling robot, a bottom cover transfer receiving platform, a bottom cover OK receiving platform, and a bottom cover NG receiving platform arranged sequentially from right to left and located behind the bottom cover inspection and handling robot, a bottom cover positioning and assembly platform, a welding placement platform, and a finished product transfer platform arranged sequentially from front to back behind the bottom cover OK receiving platform, a three-head synchronous handling robot located to the right of the bottom cover OK receiving platform, the bottom cover positioning and assembly platform, the welding placement platform, and the finished product transfer platform, a plastic sheet NG receiving box located to the left of the bottom cover positioning and assembly platform, a plastic sheet feeding mechanism located to the left of the plastic sheet NG receiving box, and a horizontal span across the plastic sheet feeding mechanism and the plastic sheet NG receiving box. The system includes a plastic sheet inspection and handling robot on the bottom cover positioning and assembly platform, an ultrasonic welding machine located next to the welding placement platform, welding NG receiving platforms located on the left and right sides of the finished product transfer platform, and a finished product unloading and handling robot located behind the finished product transfer platform and the welding NG receiving platform. The bottom cover inspection and handling robot is equipped with a first inspection component to detect whether the front-to-back direction of the bottom cover is correct. The bottom cover positioning and assembly platform is equipped with a second inspection component to detect whether there are gaps in the assembly of the plastic sheet onto the bottom cover, thereby determining whether the front and back directions of the plastic sheet are correct. The plastic sheet inspection and handling robot is equipped with a third inspection component to detect whether the front-to-back direction of the plastic sheet is correct. The bottom cover transfer and handling robot is located behind the bottom cover feeding and conveying mechanism, and is used to transport the bottom cover at the rear end of the bottom cover feeding and conveying mechanism to the bottom cover transfer and receiving platform of the two welding modules.

2. The equipment for welding the explosion-proof sheet bottom cover and the plastic plate according to claim 1, characterized in that: The bottom cover transfer and handling robot includes a first mounting frame, a first X-axis drive device, a first Z-axis drive device, a first mounting plate, and two sets of first handling heads. The first mounting frame is fixed on the chassis. The first X-axis drive device is mounted on the first mounting frame and its power output end is connected to the first Z-axis drive device. The first mounting plate is mounted on the power output end of the first Z-axis drive device. The two sets of first handling heads are respectively mounted on the left and right ends of the first mounting plate. The first handling head includes a first rotary drive device and a first adsorption component. The first rotary drive device is mounted on the first mounting plate and its power output end is connected to the first adsorption component.

3. The equipment for welding the explosion-proof sheet bottom cover and the plastic plate according to claim 1, characterized in that: The bottom cover inspection and handling robot includes a second mounting frame, a second X-axis drive device, a second Z-axis drive device, and a second adsorption assembly; the second mounting frame is mounted on the chassis; the second X-axis drive device is mounted on the second mounting frame and its power output end is connected to the second Z-axis drive device; The second adsorption component is installed at the power output end of the second Z-axis drive device; the first detection element is an infrared sensor; the first detection element is vertically installed in the middle and rear part of the second adsorption component and is used to detect the position of the liquid injection hole of the bottom cover.

4. The equipment for welding the explosion-proof sheet bottom cover and the plastic plate according to claim 1, characterized in that: The three-head synchronous handling robot includes a first Y-axis drive device, a third Z-axis drive device, a third X-axis drive device, a second mounting plate, and three sets of handling grippers; the first Y-axis drive device is mounted on the chassis and its power output end is connected to the third Z-axis drive device; The third X-axis drive device is installed at the power output end of the third Z-axis drive device; The second mounting plate is installed on the power output end of the third X-axis drive device; three sets of transport chucks are distributed front and rear on the second mounting plate; the three sets of transport chucks are divided into a first transport chuck, a second transport chuck, and a third transport chuck from front to back; the first transport chuck is used to pick up materials from the bottom cover OK receiving platform and transport them to the bottom cover positioning assembly platform; the second transport chuck is used to pick up materials from the bottom cover positioning assembly platform and transport them to the welding placement platform; the third transport chuck is used to pick up materials from the welding placement platform and transport them to the finished product transfer platform.

5. The equipment for welding the explosion-proof sheet bottom cover and the plastic plate according to claim 1, characterized in that: The bottom cover positioning assembly platform includes a support base, an X-axis clamping and positioning cylinder, and two sets of Y-axis positioning cylinders. The support base is fixed to the chassis. The X-axis clamping and positioning cylinder is installed at the center of the upper part of the support base. Two first support plates are symmetrically distributed on the left and right sides of the power output end of the X-axis clamping and positioning cylinder. A first limit block is provided on the first support plate. A second support plate is installed on the power output end of each of the two sets of Y-axis positioning cylinders. A second limit block is provided on the second support plate. The second detection component is an infrared sensor. The second detection component is horizontally installed on the left side of the support base via a support. The detection end of the second detection component is set to the left, and the bottom cover is judged to be installed backwards by detecting whether there is a gap between the assembled bottom cover and the plastic plate.

6. The equipment for welding the explosion-proof sheet bottom cover and the plastic plate according to claim 1, characterized in that: The plastic sheet feeding mechanism includes a conveying device, a plastic sheet carrier, a carrier clamping device, and a lifting device; the conveying device includes a conveyor belt mounting frame, a conveyor belt, a drive shaft, a driven shaft, and a conveyor belt drive device; the drive shaft is installed at the front end of the conveyor belt mounting frame; the driven shaft is installed at the rear end of the conveyor belt mounting frame; pulleys are respectively provided at the left and right ends of the drive shaft and the driven shaft; two conveyor belts are provided; the two conveyor belts are respectively connected to two opposite pulleys; several positioning protrusions are evenly distributed on the outer side of the conveyor belt; a positioning groove is formed between two adjacent positioning protrusions; the position below the plastic sheet detection and handling robot in the conveying device is the material picking station; multiple plastic sheet carriers are provided, including a carrier plate, a positioning rod, and a support plate; the carrier plate is used to be placed between two conveyor belts and positioned by the positioning groove; the carrier plate is provided with two positioning pins; the positioning... Two positioning rods are arranged front and back; the bottom of the positioning rod is slidably connected to the carrier plate by a slider; the carrier plate has positioning holes that cooperate with positioning pins; the middle of the carrier plate has a waist-shaped clearance hole for the positioning rod to pass through; the carrier plate is positioned above the carrier plate by cooperating with the positioning pin through the positioning holes; the carrier clamping device is set at the material picking station and includes two clamping cylinders; the two clamping cylinders are symmetrically fixed on the conveyor belt mounting frame; the power output end of the clamping cylinder is connected to a clamping block; the lifting device is set at the material picking station and includes a connecting frame, a lifting drive device, a lifting plate and a top rod; the connecting frame is fixed to the bottom of the conveyor belt mounting frame; the lifting drive device is installed on the connecting frame and its power output end is connected to the lifting plate; four top rods are arranged at the four corners and installed above the lifting plate; the top rods can pass through an overload plate to control the lifting of the carrier plate.

7. The welding equipment for the explosion-proof sheet bottom cover and the plastic plate according to claim 6, characterized in that: The carrier plate has V-shaped grooves at the middle of its left and right ends; the carrier plate has two handles symmetrically distributed on the left and right; the clamping block has V-shaped protrusions that cooperate with the V-shaped grooves.

8. The welding equipment for the explosion-proof sheet bottom cover and the plastic plate according to claim 1, characterized in that: The plastic sheet inspection and handling robot includes a third mounting frame, a fourth X-axis drive device, a fourth Z-axis drive device, a second rotary drive device, and a third adsorption assembly; the third mounting frame is fixed on the chassis; the fourth X-axis drive device is mounted on the third mounting frame and its power output end is connected to the fourth Z-axis drive device; The second rotary drive device is installed at the power output end of the fourth Z-axis drive device; the third adsorption component is installed at the power output end of the second rotary drive device; the third detection element is installed on the front middle side of the third adsorption component; the third detection element is a suction nozzle; during the process of the plastic sheet inspection and handling robot handling the plastic sheet, the third detection element simultaneously adsorbs the plastic sheet. When the plastic sheet is in the correct orientation, the third detection element can normally adsorb the plastic sheet and has a set adsorption pressure value. When the plastic sheet is in the wrong orientation, the third detection element cannot adsorb the plastic sheet and the third detection element is in an air pressure state, which indicates that the orientation of the plastic sheet is incorrect.

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