A plastic part welding system

Abstract

The application discloses a plastic part welding system which comprises a welding station, a welding assembly, a visual safety guard, an operation module, a feeding and discharging assembly and a positioning tire film. The upper end surface of the welding station is provided with a rotary workbench system. The welding assembly is arranged at the back of the welding station. The visual safety guard is arranged outside the welding station and the welding assembly. The operation module is installed outside the visual safety guard and is electrically connected with the welding station and the welding assembly. The feeding and discharging assembly is arranged outside the visual safety guard. A plurality of limiting assemblies for conveniently disassembling and assembling the positioning tire film are arranged on the rotary workbench system. The technical key point is that a plurality of limiting assemblies are arranged on the rotary workbench system. When in use, the positioning tire film and the plastic part can be synchronously disassembled and assembled for welding, and the two do not interfere with each other. A large amount of time can be saved, the welding efficiency of the plastic part can be effectively improved, and a better use prospect can be brought.

Description

Technical Field

[0001] This invention belongs to the field of plastic parts processing, specifically a plastic parts welding system. Background Technology

[0002] Automotive parts are the various components that make up a car and the products that serve the vehicle. There are many types of automotive parts, and as people's living standards improve, their car consumption is increasing, leading to a growing market for automotive parts. In recent years, automotive parts manufacturers have also been developing rapidly.

[0003] Cars have many plastic structures, including plastic glove boxes. As people's demand for cars increases, the demand for plastic glove boxes is also constantly increasing.

[0004] Welding robots are industrial robots that perform welding (including cutting and spraying). According to the International Organization for Standardization (ISO) definition of industrial robots, which includes welding robots, an industrial robot is a multi-purpose, reprogrammable, automatically controlled manipulator with three or more programmable axes used in industrial automation. To adapt to different applications, the mechanical interface of the robot's last axis, typically a connecting flange, allows for the attachment of different tools or end effectors. Welding robots are industrial robots with welding heads or welding (cutting) guns attached to the flange of their last axis, enabling them to perform welding, cutting, or thermal spraying.

[0005] like Figure 9 As shown, the plastic central miscellaneous box is U-shaped and contains two product parts. During production, the two product parts are fixed together by eight rib-like welded pillars on one of the product parts.

[0006] Existing manufacturers, when producing the aforementioned products, need to fix the products to be welded at the processing station and then use a welding robot to weld the products at the welding station. Welding and product fixing are set up separately, and both require a certain amount of time. Therefore, the efficiency of processing plastic parts is not high and cannot meet people's usage requirements. To address this, we propose a plastic parts welding system. Summary of the Invention

[0007] To overcome the shortcomings of the prior art, this application provides a plastic part welding system that uses a rotary worktable system. The rotary worktable system is equipped with several sets of limiting components, which can simultaneously assemble and disassemble the positioning mold and the welding of the plastic part without interfering with each other, thus saving a lot of time and effectively improving the welding efficiency of plastic parts. It has good application prospects.

[0008] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0009] A plastic parts welding system includes a welding station, welding components, a visual safety barrier, an operation module, a loading and unloading assembly, and a positioning diaphragm.

[0010] A rotary table system is installed on the upper surface of the welding station;

[0011] The welding assembly is located behind the welding station;

[0012] Visual safety barriers are installed on the outside of welding stations and welding components;

[0013] The operation module is installed on the outside of the visible safety barrier and is electrically connected to the welding station and welding components.

[0014] The loading and unloading assembly is located outside the visible safety barrier, directly in front of the welding station.

[0015] The positioning membrane has two sets of limiting cavities inside to define the position of the plastic parts;

[0016] The rotary worktable system is equipped with several sets of limiting components to facilitate the positioning and disassembly of the tire membrane.

[0017] The visible safety barrier is equipped with a safety light curtain inside.

[0018] The operating module is equipped with an emergency stop button, an audible and visual alarm, and a display screen, providing both audible and visual alarm and display functions.

[0019] This invention discloses a plastic part welding system, which adopts a rotary worktable system. The rotary worktable system is equipped with several sets of limiting components. During use, the positioning mold and the welding of the plastic part can be disassembled and assembled simultaneously without interference between the two, which can save a lot of time and thus effectively improve the welding efficiency of plastic parts, showing good application prospects.

[0020] The loading and unloading assembly uses a mobile trolley, on which a positioning liner with plastic parts installed is stored. The upper surface of the mobile trolley is flush with the upper surface of the rotary worktable system. Several sets of guide rollers are provided on the upper surface of the mobile trolley to facilitate the movement of the positioning liner.

[0021] In use, move the loading and unloading components to the designated position, then move the positioning diaphragm between the limiting components on the rotary table system to fix the position of the positioning diaphragm. Then the rotary table system rotates to the welding position, and the welding components weld the plastic parts in the positioning diaphragm on the rotary table system.

[0022] Preferably, the welding assembly includes a mounting frame, a welding robot, and a robot control cabinet.

[0023] The mounting frame is installed inside the visible safety railing;

[0024] There are two sets of welding robots, and both sets of welding robots are fixedly installed on the upper surface of the mounting frame.

[0025] There are two sets of robot control cabinets, which are located in front of the welding robot;

[0026] The operation module is electrically connected to the robot control cabinet, and it controls the welding robot through the robot control cabinet.

[0027] The operation module adopts a line control cabinet, which is equipped with an operation screen and operation buttons.

[0028] In use, the robot control cabinet is started by controlling the operation buttons on the operation module, and the welding robot and rotary table system are started remotely to achieve the welding of plastic parts.

[0029] Preferably, the rotary table system includes a rotary platform and a rotary table:

[0030] The rotating platform is installed at the welding station;

[0031] The rotary worktable is mounted on a rotary platform;

[0032] The limiting components are in two sets, and the rotating worktable is provided with a vertical plate for separating the positions of the limiting components.

[0033] When in use, the rotary platform can drive the rotary worktable to rotate, which will change the position of the positioning diaphragm, so that the positioning diaphragm moves from the loading position to the welding position, thereby enabling the welding of product parts, and the effect is good.

[0034] The upright plate can separate the limiting components, so that there is no interference between the loading and unloading of the positioning film and the welding of the plastic parts.

[0035] Preferably, the limiting component includes a guiding component, a pressing component, a supporting component, and a membrane replacement positioning guide for guiding and positioning the movement of the membrane:

[0036] The number of guide components used to guide the movement of the positioning membrane is two sets, and the guide components used to guide the movement of the positioning membrane are set on the outer surface of the rotary table.

[0037] There are two sets of clamping components, which are arranged on the outside of the guide components;

[0038] There are several groups of support components, and the support components are located between two groups of guide components;

[0039] There are two sets of membrane replacement positioning guides, which are fixedly installed on the rotary worktable.

[0040] The rear end of the positioning membrane is provided with a slot corresponding to the membrane replacement positioning guide position.

[0041] During use, the clamping component achieves the clamping limit of the positioning membrane, and the membrane replacement positioning guide makes it easy to judge whether the positioning membrane is in place, thus making it convenient for staff to calibrate the position of the positioning membrane, making it easy to use.

[0042] Preferably, the guiding component includes several groups of guide wheels arranged at equal intervals, and the guide wheels are rotatably connected to the upper end face of the guide wheel via pins;

[0043] The clamping assembly includes a mounting strip, which is mounted on the upper surface of the rotary table via a support column. Several sets of clamping cylinders are fixedly mounted on the upper surface of the mounting strip.

[0044] The positioning membrane has several sets of limiting holes that match the telescopic ends of the locking cylinder.

[0045] The guide wheel can guide the movement of the positioning membrane, thus making it easier to position the membrane in place.

[0046] When in use, the clamping cylinder is activated, and the telescopic end of the clamping cylinder is inserted into the limiting hole on the positioning membrane, thereby limiting the position of the positioning membrane and improving its stability.

[0047] Preferably, the support assembly includes a limiting strip, which is disposed at the upper end of the rotary worktable, and a plurality of sets of film changing top cylinders are fixedly installed on the lower end face of the rotary worktable. The telescopic end of the film changing top cylinder passes through the rotary worktable and is fixedly connected to the lower end face of the limiting strip.

[0048] The lower end face of the positioning membrane is provided with a limiting groove corresponding to the limiting strip.

[0049] The cylinder for changing the diaphragm is activated after processing. It lifts the limiting strip, which then contacts the positioning diaphragm, thus preventing the positioning diaphragm from contacting the upper surface of the rotary table system. This reduces the friction of the positioning diaphragm, making it easier to remove. It is convenient to use and has good application prospects.

[0050] Preferably, cylinders are fixedly installed on both sides of the positioning membrane. A pressure frame for pressing the plastic part is fixedly installed on the telescopic end of one set of cylinders, and the telescopic end of the other set of cylinders passes through the through hole on the plastic part. A pressing block is fixedly installed at the end of its telescopic end. A support block for supporting the plastic part is provided on the positioning membrane.

[0051] The upper surface of the rotary worktable is fixedly equipped with a cylinder component, and the telescopic ends of the positioning diaphragm and the cylinder component are both fixedly equipped with electrical quick-connect couplings. The connection of the two sets of electrical quick-connect couplings enables the cylinder to be energized and vented.

[0052] When the electrical quick-connector is not connected, the cylinder on the positioning membrane remains in its original position, thereby limiting the position of the positioning membrane.

[0053] Several sets of elastic clamping blocks are fixedly installed on the lower end face of the pressure frame. When in use, the pressure frame contacts the upper end face of the plastic part to fix the position of the pressure frame.

[0054] During use, the pressure frame presses down from above, ensuring that the welding position of the plastic part is in close contact with the positioning diaphragm. The support block supports the plastic part from the bottom, thus keeping the plastic part stable.

[0055] Preferably, the welding robot has a welding head mounted on its movable end via a quick-change disc, and the pressure frame has several sets of welding holes for the welding head to pass through.

[0056] The welding hole is located directly above the welding point.

[0057] The welding head is equipped with a transducer, and the quick-change plate is equipped with a welding cylinder that drives the welding head to move up and down, which can better approach the welding point for welding.

[0058] Sensors are installed on both the welding robot and the positioning diaphragm to correct their relative positions, thereby facilitating processing.

[0059] This invention discloses a plastic part welding system, which includes a limiting component. The limiting component enables the rapid installation and removal of the positioning membrane, and it fixes the membrane from multiple directions, improving the fixation effect. Furthermore, the limiting component, in conjunction with an electrical quick-connect coupling, enables remote control of components on the positioning membrane. This solves the problems of complex wiring and loose connections in existing technologies, making the entire operation more automated, saving significant time, and demonstrating promising application prospects.

[0060] Preferably, the limiting cavity is provided with a demolding component that drives the plastic part to demold, and the upper end of the demolding component is in contact with the lower end face of the plastic part.

[0061] The demolding mechanism helps workers remove the plastic parts from the retaining cavity.

[0062] Preferably, the demolding component includes a guide groove, a guide frame, a lifting block, and a demolding cylinder:

[0063] The guide groove is formed on the inner wall of the limiting cavity, and its shape is P-shaped;

[0064] The guide frame is I-shaped, with its ends located inside the guide groove;

[0065] The lifting block is fixedly installed on the upper end face of the guide frame by a support rod;

[0066] The unloading cylinder is fixedly installed inside the limiting cavity, and the telescopic end of the unloading cylinder is rotatably connected to the guide frame through a collar;

[0067] The upper end of the positioning membrane is provided with a strip groove directly above the limiting cavity. When the unloading cylinder is in the initial state, the upper end surface of the lifting block is coplanar with the upper end surface of the positioning membrane.

[0068] In use, the ejector cylinder drives the guide frame to move along the guide groove. The guide groove is P-shaped. Therefore, when the upper part of the guide frame moves to the top of the guide groove, it moves in an arc, causing the plastic part to move in an arc, so that the plastic part is directly separated from the inside of the limiting cavity. At this time, the relevant personnel can directly remove the plastic part.

[0069] This invention discloses a plastic part welding system, which includes a demolding component. The demolding component enables the U-shaped plastic part to move in an arc shape, allowing it to detach directly from the limiting cavity in one go. This solves the problem that in the prior art, U-shaped plastic parts require multiple demolding mechanisms to detach, which can greatly reduce costs and improve the demolding efficiency of plastic parts, showing good application prospects.

[0070] In summary, the present invention has at least one of the following beneficial technical effects:

[0071] Firstly, this invention describes a plastic part welding system that uses a rotary worktable system. The rotary worktable system is equipped with several sets of limiting components, which can simultaneously assemble and disassemble the positioning mold and the welding of the plastic part without interfering with each other. This can save a lot of time and effectively improve the welding efficiency of plastic parts, showing good application prospects.

[0072] Secondly, this invention describes a plastic part welding system, which includes a limiting component. The limiting component enables the rapid installation and removal of the positioning membrane, and it fixes the membrane from multiple directions, improving the fixing effect. Furthermore, the limiting component, in conjunction with an electrical quick-connect connector, enables remote control of devices on the positioning membrane, solving the problems of complex wiring and loose connections in existing technologies. This makes the entire operation more automated, saves a significant amount of time, and has promising application prospects.

[0073] Thirdly, this invention describes a plastic part welding system, which includes a demolding component. The demolding component allows the U-shaped plastic part to move in an arc shape, enabling it to detach directly from the limiting cavity in one go. This solves the problem that in the prior art, U-shaped plastic parts require multiple demolding mechanisms to detach, which can greatly reduce costs and improve the demolding efficiency of plastic parts, showing good application prospects. Attached Figure Description

[0074] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0075] Figure 2 This is a partial structural diagram of the welding station in this invention;

[0076] Figure 3 This is a structural diagram of the rotary table system in this invention;

[0077] Figure 4 This is a partial structural diagram of the rotary table system in this invention;

[0078] Figure 5 This is a schematic diagram of the installation structure of the positioning membrane in this invention;

[0079] Figure 6 This is a structural diagram of the positioning membrane in this invention;

[0080] Figure 7 This is a partial structural diagram of the positioning membrane in this invention;

[0081] Figure 8 This is a partial structural diagram of the demolding component in this invention;

[0082] Figure 9 This is a structural diagram of the plastic part in this invention.

[0083] Attached reference numerals: 1. Welding station; 2. Visual safety railing; 3. Operation module; 4. Positioning mold; 5. Welding robot; 6. Robot control cabinet; 7. Rotating platform; 8. Rotating worktable; 9. Vertical plate; 10. Guide wheel; 11. Mounting strip; 12. Mold locking cylinder; 13. Limiting strip; 14. Mold changing top component cylinder; 15. Pressure frame; 16. Pressing block; 17. Cylinder component; 18. Guide groove; 19. Guide frame; 20. Lifting block; 21. Unloading cylinder. Detailed Implementation

[0084] This application provides a plastic part welding system that solves the problem in the prior art where the plastic central miscellaneous box is U-shaped and contains two product parts. During production, the two product parts are fixed together by eight rib-like welding columns on one of the product parts.

[0085] When producing the aforementioned products, existing manufacturers need to fix the products to be welded at the processing station and then use welding robots to weld the products at the welding station. Welding and product fixation are separate processes, resulting in low overall efficiency and failing to meet people's usage requirements.

[0086] Example 1:

[0087] A plastic parts welding system, such as Figures 1-9 As shown, it includes welding station 1, welding components, visual safety guardrail 2, operation module 3, loading and unloading components, and positioning diaphragm 4:

[0088] A rotary worktable system is installed on the upper surface of welding station 1; welding components are located behind welding station 1; a visible safety guardrail 2 is located outside welding station 1 and welding components, and a safety light curtain is installed inside the visible safety guardrail 2; an operation module 3 is installed outside the visible safety guardrail 2, and the operation module 3 is equipped with an emergency stop button, an audible and visual alarm, and a display screen, providing audible and visual alarm and display functions, and the operation module 3 is electrically connected to welding station 1 and welding components; a loading and unloading assembly is located outside the visible safety guardrail 2, and the loading and unloading assembly is located directly in front of welding station 1; a positioning membrane 4 has two sets of limiting cavities inside to limit the position of plastic parts, and the positioning membrane 4 is compatible with relevant production equipment and is convenient to use;

[0089] The rotary table system is equipped with several sets of limiting components to facilitate the installation and removal of the positioning membrane 4.

[0090] The visual safety guardrail 2 is equipped with an ultrasonic detection system, which is connected to an audible and visual alarm. When the welding robot 5 in the welding assembly malfunctions, it can issue a timely alarm, resulting in a high level of safety performance.

[0091] This invention describes a plastic part welding system, which adopts a rotary worktable system. The rotary worktable system is equipped with several sets of limiting components. During use, the positioning diaphragm 4 and the welding of the plastic part can be simultaneously disassembled and assembled without interference between the two, which can save a lot of time and thus effectively improve the welding efficiency of plastic parts, showing good application prospects.

[0092] The loading and unloading assembly uses a mobile trolley, on which a positioning liner 4 with plastic parts installed is stored. The upper surface of the mobile trolley is flush with the upper surface of the rotary worktable system. Several sets of guide rollers are provided on the upper surface of the mobile trolley to facilitate the movement of the positioning liner 4.

[0093] The loading and unloading assembly adopts a lifting base, which can change the height of the loading and unloading assembly, making it suitable for different equipment and showing good application prospects.

[0094] Working principle: When in use, move the loading and unloading components to the designated position, and then move the positioning mold 4 to the limit components on the rotary table system to fix the position of the positioning mold 4. Then the rotary table system rotates to the welding position, and the welding components weld the plastic parts in the positioning mold 4 on the rotary table system.

[0095] The welding assembly includes a mounting frame, welding robot 5, and robot control cabinet 6.

[0096] The mounting frame is set inside the visible safety guardrail 2; there are two sets of welding robots 5, both sets of welding robots 5 are fixedly installed on the upper surface of the mounting frame, and the side of the welding robot 5 is equipped with a mold library, which is equipped with a lot of welding heads that can be replaced as needed; there are two sets of robot control cabinets 6, which are located in front of the welding robot 5.

[0097] The operation module 3 is electrically connected to the robot control cabinet 6, and it controls the welding robot 5 through the robot control cabinet 6.

[0098] Operation module 3 adopts a line control cabinet, which is equipped with an operation screen and operation buttons.

[0099] In use, the robot control cabinet 6 is started by controlling the operation button on the operation module 3, and the welding robot 5 and the rotary table system are started remotely, so as to realize the welding of plastic parts. The remote operation makes it safer and more effective. Throughout the process, the operator does not enter the welding area to ensure personnel safety.

[0100] The rotary table system includes a rotary platform 7 and a rotary table 8:

[0101] The rotating platform 7 is installed on the welding station 1. The motor of the rotating platform 7 is an SEW motor. The rotating worktable 8 is installed on the rotating platform 7. The rotating worktable 8 is equipped with an electrical slip ring, which enables the rotating worktable 8 to maintain a stable electrical connection when rotating.

[0102] The limiting components are in two sets. The rotary worktable 8 is equipped with a vertical plate 9 to separate the positions of the limiting components. The vertical plate 9 can separate the limiting components, so that the loading and unloading of the positioning film 4 and the welding of the plastic parts will not interfere with each other, allowing the workers to replace the positioning film 4 with peace of mind.

[0103] A lifting support is installed directly below the welding position on welding station 1. During the rotation of the rotary worktable 8, the lifting support retracts and extends during welding, thereby contacting the bottom of the rotary worktable 8 and directly supporting the rotary worktable 8, reducing the impact of welding on the rotary worktable 8.

[0104] The indexing range of the rotary platform 7 is 2; allowable load (T): 1.5; allowable moment of inertia load (Nm): 120000; positioning accuracy (arcsec): ±20; repeatability (arcsec): ±5; turntable parallelism (mm): ±0.01; concentricity (mm): ±0.01; voltage: 220V / 380V, 50Hz; braking voltage: 220V.

[0105] When in use, the rotating platform 7 can drive the rotating worktable 8 to rotate, which will change the position of the positioning diaphragm 4, so that the positioning diaphragm 4 moves from the loading position to the welding position, thereby enabling the welding of the product parts, and the effect is good.

[0106] Example 2:

[0107] Based on Example 1, such as Figures 1-9 As shown, this embodiment illustrates the structure of the limiting component.

[0108] The limiting assembly includes a guide assembly, a clamping assembly, a support assembly, and a membrane replacement positioning guide for guiding the movement of the positioning membrane 4.

[0109] There are two sets of guide components for guiding the movement of the positioning membrane 4, which are set on the outer surface of the rotary table 8; there are two sets of clamping components, which are set on the outside of the guide components; there are several sets of support components, which are located between the two sets of guide components; there are two sets of membrane changing positioning guides, which are fixedly installed on the rotary table 8.

[0110] The positioning membrane 4 has a slot on its rear end corresponding to the membrane replacement positioning guide position. When the slot engages with the membrane replacement positioning guide, the positioning membrane 4 is installed in place.

[0111] During use, the clamping component achieves the clamping limit of the positioning membrane 4, and the membrane replacement positioning guide makes it easy to judge whether the positioning membrane 4 is in place, thus making it convenient for staff to calibrate the position of the positioning membrane 4, which is relatively convenient to use.

[0112] The guiding assembly includes several sets of guide wheels 10 arranged at equal intervals. The guide wheels 10 are rotatably connected to the upper end face of the guide wheel 10 through a pin. The friction is relatively small. The rotation of the guide wheel 10 can better guide the movement of the positioning membrane 4, thereby facilitating the installation and removal of the positioning membrane 4.

[0113] The clamping assembly includes a mounting strip 11, which is mounted on the upper end face of the rotary table 8 via a support column. Several sets of clamping cylinders 12 are fixedly mounted on the upper end face of the mounting strip 11.

[0114] The positioning membrane 4 has several sets of limiting holes that match the telescopic ends of the clamping cylinder 12. After the telescopic ends of the clamping cylinder 12 are inserted into the limiting holes, the positioning membrane 4 can be pressed tightly, thereby limiting the position of the positioning membrane 4.

[0115] The guide wheel 10 is designed to guide the movement of the positioning membrane 4, thereby facilitating the positioning of the membrane 4 into place.

[0116] When in use, the clamping cylinder 12 is activated, and the telescopic end of the clamping cylinder 12 is inserted into the limiting hole on the positioning membrane 4, thereby limiting the position of the positioning membrane 4 and improving the stability of the positioning membrane 4.

[0117] The support assembly includes a limiting strip 13, which is set at the upper end of the rotary worktable 8. Several sets of film changing top cylinders 14 are fixedly installed on the lower end face of the rotary worktable 8. The telescopic end of the film changing top cylinder 14 passes through the rotary worktable 8 and is fixedly connected to the lower end face of the limiting strip 13.

[0118] The lower end face of the positioning membrane 4 is provided with a limiting groove corresponding to the limiting strip 13.

[0119] After processing, the cylinder 14 for changing the film is started, which can lift the limiting strip 13. The limiting strip 13 contacts the positioning film 4, thereby lifting the positioning film 4 so that the positioning film 4 does not contact the upper surface of the rotary table system. This reduces the friction of the positioning film 4, making it easier to remove. It is convenient to use and has good application prospects.

[0120] Cylinders are fixedly installed on both sides of the positioning membrane 4. A pressure frame 15 for pressing the plastic part is fixedly installed on the telescopic end of one set of cylinders. The telescopic end of the other set of cylinders passes through the through hole on the plastic part, and a pressing block 16 is fixedly installed at the end of its telescopic end. A support block for supporting the plastic part is provided on the positioning membrane 4.

[0121] Among them, the upper end face of the rotary worktable 8 is fixedly installed with a cylinder component 17, and the telescopic ends of the positioning diaphragm 4 and the cylinder component 17 are both fixedly installed with electrical quick-connect couplings. The connection of the two sets of electrical quick-connect couplings realizes the power supply and air supply of the cylinder.

[0122] When in use, two sets of cylinders work together. The telescopic end of one cylinder supports the pressure frame 15 to prevent the pressure frame 15 from being subjected to excessive force. The other cylinder drives the pressing block 16 to move, and the pressing block 16 presses the pressure frame 15, thereby limiting the position of the pressure frame 15 and ensuring the limiting effect of the pressure frame 15, thus ensuring the stability of the plastic parts during the welding process.

[0123] When the electrical quick-connector is not connected, the cylinder on the positioning membrane 4 remains in its original position, thereby limiting the position of the positioning membrane 4.

[0124] The rotary worktable 8 is equipped with an identification instrument for identifying whether the positioning membrane 4 is present on the limit component. When the positioning membrane 4 is present, the cylinder 17 is activated, which can drive the electric quick-change connector to move, enabling rapid switching between electricity and air, and calling the robot to facilitate its preparation for cutting and welding.

[0125] Several sets of elastic clamping blocks are fixedly installed on the lower end face of the pressure frame 15. When in use, the pressure frame 15 contacts the upper end face of the plastic part to fix the position of the pressure frame 15.

[0126] In use, the pressure frame 15 presses down from above, so that the welding position of the plastic part is in close contact with the positioning film 4, and the support block supports the plastic part from the bottom, thereby keeping the plastic part stable.

[0127] The welding robot 5 has a welding head mounted on its movable end via a quick-change plate, and the pressure frame 15 has several sets of welding holes for the welding head to pass through.

[0128] The welding hole is located directly above the welding point, which facilitates welding.

[0129] The welding head is equipped with a transducer, which is self-cooled to improve production capacity, and the weld is formed quickly after welding, resulting in round and full welds, while also extending the service life of the transducer.

[0130] The quick-change plate is equipped with a welding cylinder that drives the welding head to move up and down, allowing it to get closer to the welding point for welding.

[0131] Sensors are installed on both the welding robot 5 and the positioning membrane 4 to correct the relative position between them, thereby facilitating processing.

[0132] This invention discloses a plastic part welding system, which includes a limiting component. The limiting component enables the rapid installation and removal of the positioning membrane 4. Moreover, the limiting component fixes the positioning membrane 4 from multiple directions, improving the fixing effect. In addition, the limiting component, together with the electrical quick-connect connector, enables remote control of the devices on the positioning membrane 4. This solves the problems of complicated wiring and loose wiring in the prior art, making the entire operation process more automated, saving a lot of time, and showing good application prospects.

[0133] Example 3:

[0134] Based on Example 2, such as Figures 1-9 As shown, this embodiment illustrates the structure of the demolding component.

[0135] The limiting cavity is equipped with a demolding component that drives the plastic part to be demolded, and the upper end of the demolding component is in contact with the lower end face of the plastic part.

[0136] The demolding mechanism helps workers remove the plastic parts from the retaining cavity.

[0137] The demolding components include a guide groove 18, a guide frame 19, a lifting block 20, and a stripping cylinder 21.

[0138] The guide groove 18 is formed on the inner wall of the limiting cavity and is P-shaped; the guide frame 19 is I-shaped and its end is located inside the guide groove 18; the lifting block 20 is fixedly installed on the upper end face of the guide frame 19 by a support rod; the stripping cylinder 21 is fixedly installed inside the limiting cavity, and the telescopic end of the stripping cylinder 21 is rotatably connected to the guide frame 19 through a collar, so the upper part of the guide frame 19 can move in an arc, thereby driving the lifting block 20 to move in an arc, thereby driving the plastic part to move in an arc, so that the plastic part can be demolded in one go, and the effect is good.

[0139] The upper end of the positioning membrane 4 is provided with a strip groove directly above the limiting cavity. When the unloading cylinder 21 is in the initial state, the upper end surface of the lifting block 20 is coplanar with the upper end surface of the positioning membrane 4.

[0140] In use, the ejector cylinder 21 drives the guide frame 19 to move along the guide groove 18. The guide groove 18 is P-shaped. Therefore, when the upper part of the guide frame 19 moves to the top of the guide groove 18, it moves in an arc (the lower plate of the guide frame 19 moves up and down, the upper part of the guide frame 19 contacts the guide groove 18, and moves in an arc after being guided). This causes the plastic part to move in an arc, so that the plastic part is directly separated from the inside of the limiting cavity. At this time, the relevant personnel can directly remove the plastic part.

[0141] This invention discloses a plastic part welding system, which includes a demolding component. The demolding component enables the U-shaped plastic part to move in an arc shape, allowing it to detach directly from the limiting cavity in one go. This solves the problem that in the prior art, U-shaped plastic parts require multiple demolding mechanisms to detach, which can greatly reduce costs and improve the demolding efficiency of plastic parts, showing good application prospects.

[0142] Working principle: The present invention is a plastic part welding system. When in use, the operator installs the positioning mold 4 on the limiting component, turns on the switch, and the mold locking cylinder 12 is activated. The telescopic end of the mold locking cylinder 12 is inserted into the limiting hole on the positioning mold 4, thereby limiting the position of the positioning mold 4.

[0143] The rotary worktable 8 is equipped with an identification instrument for identifying whether the positioning membrane 4 is present on the limiting component. When the positioning membrane 4 is present, the cylinder 17 is activated, which can drive the electrical quick-connect connector to move, so that the electrical quick-connect connector is connected. Then the cylinder is activated to limit the position of the pressure frame 15. At the same time, the rotary platform 7 drives the rotary worktable 8 to move to the welding station, where the welding robot 5 performs welding. During the welding process, the staff loads and unloads another set of limiting components.

[0144] The positioning time of the fetal membrane 4 is 2 seconds, and the rotation time of the rotating worktable 8 is 8 seconds.

[0145] During welding, welding robot 5 adjusts its angle and changes the position of the welding head so that the welding head is close to the welding point for pressing, welding, blowing air and resetting. The welding time for each welding point is 5.5 seconds. After welding, rotating platform 7 rotates, driving another set of positioning diaphragms 4 to move to the welding position for welding.

[0146] The welding time for the storage boxes is 54 seconds, and two sets of storage boxes can be welded at once, which can greatly improve the welding efficiency of the storage boxes.

[0147] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A welding system for plastic parts, characterized in that, include: Welding station (1) has a rotary table system on its upper end face; Welding assembly, which is located behind the welding station (1); A visible safety barrier (2) is installed on the outside of the welding station (1) and the welding assembly; The operation module (3) is installed on the outside of the visual safety guardrail (2) and is electrically connected to the welding station (1) and welding components. Positioning membrane (4), which has two sets of limiting cavities inside for limiting the position of plastic parts; The loading and unloading assembly for conveying the positioning membrane (4) is set outside the visible safety guardrail (2) and is located directly in front of the welding station (1). The rotary worktable system is equipped with several sets of limiting components that facilitate the assembly and disassembly of the positioning membrane (4); The welding assembly includes: The mounting frame is installed inside the visible safety railing (2); Welding robots (5) are provided in two sets, and both sets of welding robots (5) are fixedly installed on the upper surface of the mounting frame. Two sets of robot control cabinets (6) are located in front of the welding robot (5); The operation module (3) is electrically connected to the robot control cabinet (6), and controls the welding robot (5) through the robot control cabinet (6); The rotary table system includes: A rotating platform (7) is installed on the welding station (1); A rotary worktable (8) is mounted on a rotary platform (7); The number of the limiting components is two sets, and the rotary worktable (8) is provided with a vertical plate (9) for separating the positions of the limiting components; The limiting component includes: Two sets of guide components are used to guide the movement of the positioning membrane (4) and are set on the outer surface of the rotary table (8). Two sets of clamping components are provided, and the clamping components are disposed on the outside of the guide components; Support components, which are in several groups, are located between two groups of guide components; The membrane replacement positioning guide consists of two sets, which are fixedly installed on the rotary worktable (8); The positioning membrane (4) has a slot on its rear end corresponding to the membrane replacement positioning guide position; The guiding assembly includes several groups of guide wheels (10) arranged at equal intervals, and the guide wheels (10) are rotatably connected to the upper end face of the guide wheel (10) by a pin. The clamping assembly includes a mounting strip (11), which is mounted on the upper surface of the rotary worktable (8) via a support column. Several sets of clamping cylinders (12) are fixedly mounted on the upper surface of the mounting strip (11). The positioning membrane (4) is provided with several sets of limiting holes that match the telescopic end of the locking cylinder (12); The support assembly includes a limiting strip (13), which is set at the upper end of the rotary worktable (8). Several sets of film changing top cylinders (14) are fixedly installed on the lower end face of the rotary worktable (8). The telescopic end of the film changing top cylinder (14) passes through the rotary worktable (8) and is fixedly connected to the lower end face of the limiting strip (13). The lower end face of the positioning membrane (4) is provided with a limiting groove corresponding to the limiting strip (13); Cylinders are fixedly installed on both sides of the positioning membrane (4). A pressure frame (15) for pressing the plastic part is fixedly installed on the telescopic end of one set of cylinders. The telescopic end of the other set of cylinders passes through the through hole on the plastic part, and a pressing block (16) is fixedly installed at the end of its telescopic end. A support block for supporting the plastic part is provided on the positioning membrane (4). Among them, the upper end face of the rotary worktable (8) is fixedly installed with a cylinder component (17), and the telescopic ends of the positioning diaphragm (4) and the cylinder component (17) are both fixedly installed with electrical quick-connect couplings. The two sets of electrical quick-connect couplings are connected to realize the power supply and air supply of the cylinder. The welding robot (5) has a welding head installed on its movable end via a quick-change plate, and the pressure frame (15) has several sets of welding holes for the welding head to pass through. The limiting cavity is provided with a demolding component that drives the plastic part to be demolded, and the upper end of the demolding component is in contact with the lower end face of the plastic part. The demolding component includes: The guide groove (18) is located on the inner wall of the limiting cavity and is P-shaped. The guide frame (19) is I-shaped, and its end is located inside the guide groove (18); The lifting block (20) is fixedly installed on the upper end face of the guide frame (19) by a support rod; The unloading cylinder (21) is fixedly installed inside the limiting cavity, and its telescopic end is rotatably connected to the guide frame (19) through a collar; The upper end of the positioning membrane (4) is provided with a strip groove directly above the limiting cavity. When the unloading cylinder (21) is in the initial state, the upper end face of the lifting block (20) is coplanar with the upper end face of the positioning membrane (4).

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