Automatic forming and quality inspection integrated equipment for air spring aluminum framework air chamber upper cover

Abstract

The invention relates to the technical field of injection molding, in particular to automatic forming and quality inspection integrated equipment for an air spring aluminum framework air chamber upper cover, which is used for coating a plastic layer on the surface of the air chamber upper cover through injection molding and comprises an injection molding mechanism; the workbench is arranged on one side of the injection molding mechanism; the feeding and discharging system comprises a feeding conveying belt, an angle pre-adjusting mechanism, a workpiece preheating mechanism, a transfer table, a quality inspection mechanism, a first mechanical arm and a second mechanical arm, all of which are arranged on the workbench, and the second mechanical arm is arranged between the injection molding mechanism and the workbench. Through the arrangement of the high-precision angle pre-adjusting mechanism and the workpiece preheating mechanism and the integrated process of automatic injection molding and online weighing quality inspection, the problems that in a traditional production mode, the manual positioning precision is low, the procedure connection efficiency is poor, injection molding combination is poor, and quality detection lags behind are solved.

Description

Automated molding and quality inspection equipment for aluminum frame air chamber cover of air spring Technical Field

[0001] This invention relates to the field of injection molding technology, specifically to an automated molding and quality inspection integrated equipment for the aluminum frame air chamber cover of an air spring. Background Technology

[0002] In current industrial production, the surface treatment of the air spring aluminum frame chamber cover often involves injection molding a layer of plastic onto its outer surface to improve the product's sealing performance, corrosion resistance, or to meet specific functional requirements. Traditional production processes typically rely on manual or semi-automated methods to complete multiple steps such as cover conveying, angle adjustment, preheating, injection molding, and quality inspection. These steps are carried out separately and independently, resulting in low production efficiency and difficulty in ensuring process consistency and product precision.

[0003] Specifically, traditional methods have significant shortcomings in workpiece angle positioning. Since the screw holes on the air chamber cover need to precisely correspond to the cavity of the injection mold, any angular deviation can easily lead to uneven plastic layers after injection molding or affect assembly accuracy. Current technologies typically rely on manual visual inspection or simple mechanical positioning, which makes it difficult to achieve high-precision, repeatable angle correction, thus affecting product yield. Furthermore, if the workpiece temperature is not effectively controlled before injection molding, the cold workpiece surface is prone to premature solidification of the molten plastic, resulting in insufficient bonding strength of the plastic layer or surface defects.

[0004] Furthermore, in traditional production processes, the connection between each process relies on manual transfer or single mechanical devices, lacking integrated material flow and coordinated control. This not only increases production cycle time but also makes it prone to errors due to human factors. Quality inspection is usually carried out independently at the end of production, lacking real-time linkage with the molding process. This makes it difficult to detect and handle defective products in a timely manner, increasing production costs and wasting resources.

[0005] Therefore, the industry urgently needs an integrated device that can combine precise angle positioning, workpiece temperature control, automated injection molding, and online quality inspection to achieve efficient, accurate, and stable continuous production, while improving product consistency and yield. Summary of the Invention

[0006] To address the problems existing in the current technology, an automated molding and quality inspection integrated equipment for the air spring aluminum frame air chamber cover is provided. By integrating a high-precision angle pre-adjustment mechanism based on machine vision, a workpiece preheating mechanism with closed-loop temperature control, and an intelligent linkage process of automated injection molding and online weighing quality inspection, a complete digital production unit is constructed. Combined with intelligent sensing and real-time feedback control technology, it solves the problems of low manual positioning accuracy, poor process coordination, unstable injection molding quality, and delayed quality inspection feedback in traditional production methods.

[0007] To address the problems of existing technologies, this invention provides an automated molding and quality inspection integrated device for an air spring aluminum frame chamber cover, used for injection molding a plastic layer onto the surface of the chamber cover. The device includes: an injection molding mechanism with a moving mold and a fixed mold, the moving mold and fixed mold closing to form a cavity on the surface of the chamber cover; a worktable disposed on one side of the injection molding mechanism; and a loading and unloading system including a loading conveyor belt, an angle pre-adjustment mechanism, a workpiece preheating mechanism, a transfer table, a quality inspection mechanism, and a first robotic arm disposed on the worktable, and a second robotic arm disposed between the injection molding mechanism and the worktable. The working area of ​​the first robotic arm covers the end and angle of the loading conveyor belt. The system comprises a pre-adjustment mechanism, a workpiece preheating mechanism, a transfer platform, and a quality inspection mechanism; the working area of ​​the second robotic arm covers the transfer platform, the workpiece preheating mechanism, and the injection molding mechanism; wherein, the pre-adjustment mechanism includes a horizontally rotating adjustment ring and a servo motor driving the adjustment ring, and a vision sensor with an upward-facing lens is installed at the bottom of the adjustment ring to acquire an image of the air chamber cover placed on the adjustment ring, and to control the servo motor to adjust the angle of the air chamber cover according to the image; the quality inspection mechanism includes a weighing platform for weighing the air chamber cover after it is covered with a plastic layer, and when the weighing data is lower than the preset standard weight, it is judged as a defective product.

[0008] Preferably, the loading and unloading system further includes an angle correction mechanism disposed on the workbench; the angle correction mechanism includes a correction table and conical heads distributed on the correction table, the conical heads being distributed in correspondence with the threaded holes of the air chamber cover.

[0009] Preferably, the workpiece preheating mechanism includes: an electric heating coil disposed on the worktable; a rotary motor disposed at the bottom of the electric heating coil, with a support tray extending into the electric heating coil on its output shaft; and a temperature sensor disposed on the worktable, with its detection end facing the air chamber cover on the support tray.

[0010] Preferably, the end of the first robotic arm is provided with a first gripper cylinder.

[0011] Preferably, the feeding conveyor belts are arranged in parallel on the worktable.

[0012] Preferably, the second robotic arm is a bull-head robotic arm, with two second gripper cylinders and two sets of suction cup fixtures distributed on both sides of its end.

[0013] Preferably, the quality inspection mechanism further includes a linear module set on the workbench and a coding device set on one side of the linear module. The linear module is provided with a holding platform for holding good products, and the good products are coded from the side when they pass through the coding device.

[0014] Preferably, a defective product box is also provided on the workbench.

[0015] Preferably, the workpiece preheating mechanism further includes a heat insulation box disposed on the worktable, wherein the heating coil and the rotary motor are both located inside the heat insulation box.

[0016] Preferably, the angle correction mechanism further includes a frame with an opening at the bottom end. The adjusting ring is rotatably mounted on the frame and coaxial with the opening. The servo motor is mounted on the frame, and a pulley is mounted on its output shaft. A transmission belt is mounted on the pulley and the adjusting ring. A groove coaxial with the top end of the adjusting ring is provided, and the air chamber cover is coaxially placed in the groove.

[0017] The advantages of this application compared to the prior art are:

[0018] This application introduces a machine vision-based angle pre-adjustment mechanism and a closed-loop control workpiece preheating mechanism, achieving accurate prediction and real-time control of key process parameters before injection molding. This fundamentally eliminates injection molding defects caused by positioning deviations and temperature fluctuations resulting from manual intervention. Through the collaborative scheduling algorithm of the first and second robotic arms and the integrated system layout, an intelligent connection mechanism between processes is constructed, achieving zero waiting time and zero backlog in material flow, significantly reducing non-value-added operation time.

[0019] Meanwhile, the integrated online weighing and quality inspection unit has real-time data acquisition capabilities, enabling continuous monitoring of quality indicators during production. Based on preset rules, it automatically identifies, alarms in real-time, and quickly isolates non-conforming products, forming a feedforward and feedback control loop for quality anomalies. This systematically reduces quality costs and supply chain risks. It provides a high-precision, high-efficiency, and high-reliability intelligent manufacturing solution with adaptive optimization capabilities for the plastic coating production of the air spring aluminum frame chamber cover. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the injection molding of the air chamber cover.

[0021] Figure 2 is a schematic diagram of the automated molding and quality inspection integrated equipment for the air spring aluminum frame air chamber cover of the present invention from a first perspective.

[0022] Figure 3 is a top view of the automated molding and quality inspection integrated equipment for the air spring aluminum frame air chamber cover of the present invention.

[0023] Figure 4 is a schematic diagram of the automated molding and quality inspection integrated equipment for the air spring aluminum frame air chamber cover of the present invention from a second perspective.

[0024] Figure 5 is a magnified view of part A in Figure 4.

[0025] Figure 6 is a partially enlarged view of part B in Figure 4.

[0026] Figure 7 is a partially enlarged view of part C in Figure 4.

[0027] Figure 8 is a schematic diagram of the injection molding mechanism and the second robotic arm in the automatic forming and quality inspection integrated equipment for the air spring aluminum skeleton air chamber upper cover of the present invention.

[0028] Figure 9 is a schematic diagram of the feeding conveyor belt in the automatic forming and quality inspection integrated equipment for the air spring aluminum skeleton air chamber upper cover of the present invention.

[0029] Figure 10 is a partially enlarged view of part D in Figure 9.

[0030] Figure 11 is a system flow chart of the automatic forming and quality inspection integrated equipment for the air spring aluminum skeleton air chamber upper cover of the present invention.

[0031] The reference numerals in the figure are: 11, air chamber upper cover; 12, plastic layer; 21, moving mold; 22, fixed mold; 3, workbench; 31, defective product box; 41, feeding conveyor belt; 42, angle pre-adjustment mechanism; 421, adjustment ring; 422, servo motor; 423, vision sensor; 424, frame; 425, pulley; 426, transmission belt; 43, workpiece preheating mechanism; 431, electric heating coil; 432, rotating motor; 433, temperature sensor; 434, heat insulation box; 44, transfer table; 451, weighing table; 452, linear module; 453, coder; 454, placing table; 46, first robotic arm; 461, first jaw cylinder; 47, second robotic arm; 471, second jaw cylinder; 472, suction cup tooling; 48, angle correction mechanism; 481, correction table; 482, conical head. Detailed Embodiment

[0032] To further understand the features, technical means, specific purposes, and functions achieved by the present invention, the following will describe the present invention in further detail in combination with the accompanying drawings and specific embodiments.

[0033] As shown in Figure 11, the equipment operates according to the process shown in the figure. The automatic forming and quality inspection integrated equipment for the air spring aluminum skeleton air chamber upper cover is used for injecting a layer of plastic on the outer surface of the air chamber upper cover 11. It includes an injection molding mechanism and a loading and unloading system supporting the injection molding mechanism. The loading and unloading system includes a feeding conveyor belt 41, an angle pre-adjustment mechanism 42, an angle correction mechanism 48, a workpiece preheating mechanism 43, a transfer table 44, a quality inspection mechanism, a first robotic arm 46, and a second robotic arm 47. The equipment is also equipped with a central control system, integrating a PLC and an industrial control computer, to achieve coordinated control of each mechanism, data acquisition, and real-time adjustment of process parameters.

[0034] The equipment can output production data (such as weight, temperature, and yield) to the host computer system and interface with the MES system to achieve production data traceability.

[0035] The first robotic arm 46 covers the feeding conveyor belt 41, the angle pre-adjustment mechanism 42, the angle correction mechanism 48, the workpiece preheating mechanism 43, the transfer table 44, and the quality inspection mechanism in its working area. The second robotic arm 47 covers the transfer table 44, the workpiece preheating mechanism 43, and the injection molding mechanism in its working area. The air chamber cover 11 is conveyed by the feeding conveyor belt 41, and at the end of the feeding conveyor belt 41, it is clamped by the first robotic arm 46 and fed into the angle pre-adjustment mechanism 42.

[0036] The angle pre-adjustment mechanism 42 includes an adjustment ring 421 driven by a servo motor 422. A high-resolution vision sensor 423 (such as a 5-megapixel CMOS) is installed at the bottom of the adjustment ring 421. After the air chamber cover 11 is placed into the adjustment ring 421, the servo motor 422 adjusts the angle of the air chamber cover 11 based on feedback from the vision sensor 423. The positioning accuracy can reach ±0.1°, ensuring that the position of the screw hole of the air chamber cover 11 corresponds to the position inside the mold cavity after it is sent into the mold. After the angle pre-adjustment mechanism 42 has adjusted the air chamber cover 11, there is still a certain angle error. The first robotic arm 46 then sends the cover into the angle correction mechanism 48.

[0037] The angle correction mechanism 48 includes a correction platform and conical heads 482 distributed on the correction platform 481. The conical heads 482 correspond to the screw holes of the air chamber cover 11. After the air chamber cover 11 is lowered onto the correction platform, the conical heads 482 align with the screw holes to achieve precise positioning of the air chamber cover 11. Then, the first robotic arm 46 clamps the air chamber cover 11 and sends it into the workpiece preheating mechanism 43 to prevent the air chamber cover 11 from becoming too cold and causing the plastic to solidify directly on its surface during injection molding.

[0038] After the air chamber cover 11 is heated to the set temperature, the second robotic arm 47 sends the heated air chamber cover 11 into the injection molding mechanism, and then the mold is closed for injection molding, injecting a layer of plastic onto the surface of the air chamber cover 11. After injection molding is completed, the mold is separated, and the second robotic arm 47 sends it to the transfer table 44, and then the first robotic arm 46 sends it to the quality inspection mechanism. The quality inspection mechanism has a weighing platform 451 and a coding machine 453. Only products that pass the weighing are coded.

[0039] As shown in Figures 1 to 4, 9, and 10, an automated molding and quality inspection integrated device for an air spring aluminum frame air chamber cover is used to injection mold a plastic layer 12 onto the surface of the air chamber cover 11. The device includes: an injection molding mechanism with a moving mold 21 and a fixed mold 22, which close to form a cavity on the surface of the air chamber cover 11; a worktable 3 disposed on one side of the injection molding mechanism; and a loading and unloading system including a loading conveyor belt 41, an angle pre-adjustment mechanism 42, a workpiece preheating mechanism 43, a transfer table 44, a quality inspection mechanism, and a first robotic arm 46 disposed on the worktable 3, and a second robotic arm 47 disposed between the injection molding mechanism and the worktable 3. The working area of ​​the first robotic arm 46 covers the end of the loading conveyor belt 41 and the angle... The system includes a pre-adjustment mechanism 42, a workpiece preheating mechanism 43, a transfer platform, and a quality inspection mechanism. The working area of ​​the second robotic arm 47 covers the transfer platform 44, the workpiece preheating mechanism 43, and the injection molding mechanism. The pre-adjustment mechanism 42 includes a horizontally rotating adjustment ring 421 and a servo motor 422 driving the adjustment ring 421. A vision sensor 423 with an upward-facing lens is installed at the bottom of the adjustment ring 421. The vision sensor 423 acquires an image of the air chamber cover 11 placed on the adjustment ring 421, and the servo motor 422 is controlled to adjust the angle of the air chamber cover 11 based on the image. The quality inspection mechanism includes a weighing platform 451, which uses a high-precision weighing sensor (accuracy ±0.01g). The data is uploaded to the control system in real time. This platform is used to weigh the air chamber cover 11 after it is covered with a plastic layer 12, and the data is uploaded to the control system in real time. Qualified workpieces are coded by a coding device 453 (supporting QR codes, dates, batch numbers, etc.) and automatically sorted to the good product area. Defective products automatically fall into defective product box 31. The system records the reason for the defect (such as insufficient weight) and can issue a real-time alarm on the touch screen.

[0040] The injection molding mechanism has a moving mold 21 and a fixed mold 22, which are used to close the mold on the surface of the precisely positioned air chamber cover 11 to form an injection cavity. Its core innovation lies in the matching loading and unloading system, which is located on the worktable 3 on one side of the injection molding mechanism and achieves efficient connection and flexible flow between processes through two robotic arms.

[0041] The loading and unloading system integrates a loading conveyor belt 41, an angle pre-adjustment mechanism 42, a workpiece preheating mechanism 43, a transfer station 44, and a quality inspection mechanism. The first robotic arm 46 is responsible for covering the pre-treatment and quality inspection process from the end of the conveyor belt to the preheating stage, while the second robotic arm 47 is specifically responsible for transferring the air chamber cover 11 between the preheating, injection molding, and transfer processes, forming a seamless automated production line.

[0042] The angle pre-adjustment mechanism 42 serves as a preliminary positioning unit. Its core is an adjustment ring 421 driven by a servo motor 422, capable of horizontal rotation. A vision sensor 423 with its lens facing upwards is mounted at the bottom of the ring. When the air chamber cover 11 is placed on it, the vision system quickly identifies its features and drives the adjustment ring 421 to rotate, performing coarse pre-positioning of the air chamber cover 11 and laying the foundation for subsequent steps. To address the issues of insufficient or excessive preheating, the workpiece preheating mechanism 43 is integrated into a key process node, ensuring that the air chamber cover 11 reaches and maintains its optimal temperature before injection molding, promoting good flow and bonding of the plastic melt. To prevent missed inspections and achieve real-time quality assessment, the quality inspection mechanism employs an online weighing scheme, using a high-precision weighing platform 451 to instantly weigh the coated air chamber cover 11. If the weight is lower than the preset standard, the system automatically identifies it as a defective product with incomplete coating, achieving immediate and objective judgment and triage of product quality.

[0043] The equipment operation begins with the feeding conveyor belt 41 sequentially feeding the air chamber cover 11. The first robotic arm 46 grabs the air chamber cover 11 from the end of the feeding conveyor belt 41 and first places it into the angle pre-adjustment mechanism 42. The vision sensor 423 captures an image of the bottom of the air chamber cover 11, identifies its orientation, and then the servo motor 422 drives the adjustment ring 421 to rotate, so that the air chamber cover 11 completes the initial angle pre-adjustment. Subsequently, the first robotic arm 46 transfers the pre-adjusted air chamber cover 11 to the workpiece preheating mechanism 43 for uniform heating.

[0044] Once the air chamber cover 11 reaches the preset temperature, the second robotic arm 47 removes it and precisely places it into the fixed mold 22 of the injection molding mechanism. The moving mold 21 and the fixed mold 22 close, and plastic is injected onto the outer surface of the air chamber cover 11 to form a coating layer. After injection molding is completed and the mold is opened, the second robotic arm 47 removes the coated air chamber cover 11 and places it on the transfer platform 44.

[0045] The first robotic arm 46 picks up the injection-molded air chamber cover 11 from the transfer station 44 and transfers it to the weighing platform 451 of the quality inspection agency for online weighing. The system automatically determines whether the product is qualified by comparing the weighing data with the standard value, and codes qualified products or sends them to the next process, while defective products are separated, thus completing a fully automated work cycle.

[0046] As shown in Figures 4 and 7, the loading and unloading system also includes an angle correction mechanism 48 disposed on the workbench 3; the angle correction mechanism 48 includes a correction platform 481 and conical heads 482 distributed on the correction platform 481, the conical heads 482 being distributed corresponding to the threaded holes of the air chamber cover 11.

[0047] The first robotic arm 46 picks up the workpiece from the end of the conveyor belt and first places it in the angle pre-adjustment mechanism 42 for preliminary angle adjustment under visual guidance. Then, the first robotic arm 46 moves the pre-adjusted air chamber cover 11 to the angle correction mechanism 48, where the tapered head 482 engages with the threaded hole to complete the final precise positioning. The precisely positioned workpiece is then transferred to the workpiece preheating mechanism 43 and heated to the required process temperature.

[0048] Once the predetermined temperature is reached, the second robotic arm 47 removes the preheated workpiece and precisely places it into the fixed mold 22 of the injection molding mechanism. After mold closing and injection molding, the second robotic arm 47 removes the wrapped workpiece and places it on the transfer table 44. Next, the first robotic arm 46 picks up the workpiece from the transfer table 44 and transfers it to the weighing table 451 of the quality inspection mechanism for online inspection. The system automatically sorts qualified and defective products based on the weighing results, thus forming a fully automated and high-precision production cycle.

[0049] As shown in Figure 5, the workpiece preheating mechanism 43 includes: an electric heating coil 431, which is disposed on the worktable 3; a rotary motor 432, which is disposed at the bottom of the electric heating coil 431, and a support tray extending into the electric heating coil 431 is disposed on its output shaft; and a temperature sensor 433, which is disposed on the worktable 3, with its detection end facing the air chamber cover 11 on the support tray.

[0050] The workpiece preheating mechanism 43 includes an electric heating coil 431 disposed on the worktable 3, which radiates heat to the workpiece placed in its heating area.

[0051] A rotary motor 432 is located at the bottom of the heating coil 431, and its output shaft drives a support tray extending into the heating coil 431 to rotate at a uniform speed. This ensures that the air chamber cover 11 placed on the support tray is heated evenly, avoiding localized overheating or underheating. Simultaneously, a temperature sensor 433 mounted on the worktable 3 monitors the workpiece surface temperature in real time and feeds the data back to the control system, achieving dynamic closed-loop control of the preheating process and ensuring that each workpiece reaches and stabilizes within the optimal process temperature window before injection molding.

[0052] As shown in Figure 5, the end of the first robotic arm 46 is provided with a first gripper cylinder 461.

[0053] The first robotic arm 46's end effector is equipped with a first gripper cylinder 461. The design of the first gripper cylinder 461 ensures stability, reliability, and rapid response when gripping the air chamber cover 11, providing a fundamental guarantee for the precise and non-destructive transfer of workpieces between the conveyor belt, the dual-stage positioning mechanism, the preheating mechanism, the transfer table 44, and the quality inspection mechanism. The second robotic arm 47 is responsible for the efficient connection between the preheating, injection molding, and transfer processes.

[0054] As shown in Figures 2 and 4, there are two feeding conveyor belts 41 which are arranged in parallel on the workbench 3.

[0055] The design of the double parallel feeding conveyor belts 41 enables the equipment to have the ability to process multi-variety workpieces or achieve efficient continuous feeding. This not only reduces the downtime waiting caused by the single-line feeding interval or model change, but also optimizes the movement path and rhythm of the first robotic arm 46 by providing more optional grasping sources for it, thereby greatly improving the overall output rate and adaptability of the equipment.

[0056] As shown in Figure 8, the second robotic arm 47 is a bullhead robotic arm, and two second jaw cylinders 471 and two groups of suction cup toolings 472 are distributed on both sides of its end.

[0057] The second robotic arm 47 adopts the structure of a bullhead robotic arm, and two second jaw cylinders 471 and two groups of suction cup toolings 472 are symmetrically distributed on both sides of its end. This enables the robotic arm to perform two actions of "material taking" and "material feeding" simultaneously during one reciprocating stroke: that is, the jaws or suction cups on one side grasp the formed hot parts products in the injection molding machine, while the jaws or suction cups on the other side hold a preheated cold part blank to be processed. When the second robotic arm 47 moves to the mold position, within a very short time window, the finished product can be taken out first and then the blank can be put in, realizing the complete parallel processing of the loading and unloading actions within the injection molding cycle, and minimizing the waiting time of the mold to the greatest extent.

[0058] As shown in Figures 3 and 6, the quality inspection mechanism further includes a linear module 452 arranged on the workbench 3 and a coder 453 arranged on one side of the linear module 452. A placing table 454 for holding qualified products is arranged on the linear module 452, and side coding is performed on the qualified products when they pass through the coder 453.

[0059] The quality inspection mechanism includes a linear module 452 arranged on the workbench 3, and a placing table 454 for holding the products determined to be qualified after weighing is arranged on the linear module 452. After the weighing table 451 determines that the product is qualified, the first robotic arm 46 places the workpiece on the placing table 454. Subsequently, the linear module 452 drives the placing table 454 and the workpiece to move along a preset path. A coder 453 is fixedly arranged on one side of the path. When the placing table 454 carries the workpiece past, the coder 453 automatically completes a permanent identification (such as production batch, date, serial number, etc.) on the side of the workpiece. After the identification is completed, the workpiece is conveyed to the designated qualified product collection area to complete automatic diversion.

[0060] As shown in Figure 3, a defective product box 31 is also arranged on the workbench 3.

[0061] The quality inspection agency not only implemented online testing and good product labeling, but also achieved automatic identification, separation, and collection of non-conforming products through a pre-set defective product box 31. This avoids defective products from being mixed into the good product line or relying on manual intervention for removal, ensuring that 100% of the output products are verified qualified products. At the same time, it standardizes and automates waste disposal, truly realizing a closed-loop quality control process.

[0062] As shown in Figure 5, the workpiece preheating mechanism 43 also includes a heat insulation box 434 disposed on the workbench 3, and the heating coil 431 and the rotary motor 432 are both located inside the heat insulation box 434.

[0063] After the workpiece enters the workpiece preheating mechanism 43, which includes an electric heating coil 431, a support tray driven by a rotary motor 432, and a temperature sensor 433, the entire heating unit is placed inside an insulated box 434 set on the worktable 3. Both the electric heating coil 431 and the rotary motor 432 are located within this insulated box 434. This structure effectively reduces unnecessary heat loss to the working environment, concentrates the heat field, significantly improves heating efficiency, reduces energy consumption, and, more importantly, creates a preheating environment for the workpiece with less external interference and a more uniform and stable temperature distribution, ensuring the consistency of the preheating process. After preheating, the workpiece is efficiently and synchronously picked up and placed for injection molding by the second robotic arm 47 (a robotic arm with a composite end effector). Finally, the product is transferred by the first robotic arm 46 to a quality inspection mechanism integrating weighing, coding, and automatic sorting of good and defective products, completing the quality closed loop.

[0064] As shown in Figure 5, the angle correction mechanism 48 also includes a frame 424 with an opening at the bottom. The adjusting ring 421 is rotatably mounted on the frame 424 and coaxial with the opening. The servo motor 422 is mounted on the frame 424, and a pulley 425 is mounted on its output shaft. A transmission belt 426 is mounted on the pulley 425 and the adjusting ring 421. A groove coaxial with the top of the adjusting ring 421 is provided, and the air chamber cover 11 is coaxially placed in the groove.

[0065] The angle pre-adjustment mechanism 42 includes a frame 424, a servo motor 422, and a rotatable adjustment ring 421. The frame 424 is fixed to the worktable 3, and has an opening at its bottom end. The adjustment ring 421 is rotatably mounted on the frame 424 via a bearing assembly, and its rotation axis is coaxial with the center line of the opening at the bottom end of the frame 424. The servo motor 422 is fixedly mounted on the frame 424, and its output shaft is connected to a pulley 425.

[0066] The adjusting ring 421 has a circumferentially connected transmission belt 426 corresponding to the pulley 425. The transmission belt 426 is wrapped around the pulley 425 and the adjusting ring 421 to transmit the rotational motion of the servo motor 422 to the adjusting ring 421. The top of the adjusting ring 421 has an annular groove coaxial with it, which is used to position and support the air chamber cover 11, so that the air chamber cover 11 remains coaxial with the adjusting ring 421 when placed in the groove. A vision sensor 423 with its lens facing upward is provided below the opening at the bottom of the frame 424. It is used to acquire image information of the air chamber cover 11 placed in the groove of the adjusting ring 421, and control the servo motor 422 to drive the adjusting ring 421 to rotate according to the image information, thereby pre-adjusting the angle of the air chamber cover 11.

[0067] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. An automated molding and quality inspection integrated equipment for the aluminum frame air chamber cover of an air spring, used for injection molding a plastic layer onto the surface of the air chamber cover, characterized in that, include: The injection molding mechanism has a moving mold and a fixed mold, which close together to form a cavity on the surface of the air chamber cover. A workbench is located on one side of the injection molding mechanism. The loading and unloading system includes a loading conveyor belt, an angle pre-adjustment mechanism, a workpiece preheating mechanism, a transfer platform, a quality inspection mechanism, and a first robotic arm mounted on the workbench. A second robotic arm is positioned between the injection molding mechanism and the workbench. The working area of ​​the first robotic arm covers the end of the loading conveyor belt, the angle pre-adjustment mechanism, the workpiece preheating mechanism, the transfer platform, and the quality inspection mechanism. The working area of ​​the second robotic arm covers the transfer platform, the workpiece preheating mechanism, and the injection molding mechanism. The angle pre-adjustment mechanism includes a horizontally rotating adjustment ring and a servo motor driving the adjustment ring. A vision sensor with an upward-facing lens is installed at the bottom of the adjustment ring. The vision sensor acquires an image of the air chamber cover placed on the adjustment ring, and the servo motor is controlled to adjust the angle of the air chamber cover based on the image. The quality inspection mechanism includes a weighing platform for weighing the air chamber cover after it is coated with a plastic layer. If the weighing data is lower than a preset standard weight, it is determined to be a defective product.

2. The automated molding and quality inspection integrated equipment for the air spring aluminum frame air chamber cover according to claim 1, characterized in that, The loading and unloading system also includes an angle correction mechanism set on the workbench; the angle correction mechanism includes a correction table and conical heads distributed on the correction table, the conical heads being distributed in correspondence with the threaded holes of the air chamber cover.

3. The automated molding and quality inspection integrated equipment for the air spring aluminum frame air chamber cover according to claim 1, characterized in that, The workpiece preheating mechanism includes: an electric heating coil disposed on the worktable; a rotary motor disposed at the bottom of the electric heating coil, with a support tray extending into the electric heating coil on its output shaft; and a temperature sensor disposed on the worktable, with its detection end facing the air chamber cover on the support tray.

4. The automated molding and quality inspection integrated equipment for the air spring aluminum frame air chamber cover according to claim 1, characterized in that, The first robotic arm is equipped with a first gripper cylinder at its end.

5. The automated molding and quality inspection integrated equipment for the air spring aluminum frame air chamber cover according to claim 1, characterized in that, The feeding conveyor belts are arranged in parallel on the worktable.

6. The automated molding and quality inspection integrated equipment for the air spring aluminum frame air chamber cover according to claim 1, characterized in that, The second robotic arm is a bull-head robotic arm, with two second gripper cylinders and two sets of suction cup fixtures distributed on both sides of its end.

7. The automated molding and quality inspection integrated equipment for the air spring aluminum frame air chamber cover according to any one of claims 1-6, characterized in that, The quality inspection mechanism also includes a linear module set on the workbench and a coding device set on one side of the linear module. The linear module is equipped with a holding platform for holding good products. When the good products pass through the coding device, they are coded from the side.

8. The automated molding and quality inspection integrated equipment for the air spring aluminum frame air chamber cover according to any one of claims 1-6, characterized in that, A defective product box is also set up on the workbench.

9. The automated molding and quality inspection integrated equipment for the air spring aluminum frame air chamber cover according to claim 3, characterized in that, The workpiece preheating mechanism also includes a heat insulation box set on the workbench, and the heating coil and the rotary motor are both located inside the heat insulation box.

10. The automated molding and quality inspection integrated equipment for the air spring aluminum frame air chamber cover according to claim 2, characterized in that, The angle correction mechanism also includes a frame with an opening at the bottom. The adjusting ring is rotatably mounted on the frame and coaxial with the opening. The servo motor is mounted on the frame, and a pulley is mounted on its output shaft. A transmission belt is mounted on the pulley and the adjusting ring. A groove coaxial with the top of the adjusting ring is provided, and the air chamber cover is coaxially placed in the groove.

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