Bluetooth earphone shell intelligent processing equipment

Abstract

The application relates to the earphone processing technical field, and more specifically discloses a Bluetooth earphone shell intelligent processing equipment which comprises a workbench, a lower chamber and an upper chamber arranged in the workbench, a U-shaped frame fixedly connected to the top of the workbench, a mechanical arm and an industrial camera installed on the lower side of the U-shaped frame, two positioning frames symmetrically arranged on the upper side of the workbench, a group of clamping mechanisms arranged on the side close to each other of the two positioning frames, a reverse moving mechanism arranged in the upper chamber, the reverse moving mechanism driving the two positioning frames to move close to each other, and then driving two groups of clamping mechanisms to clamp and fix workpieces; the Bluetooth earphone shell intelligent processing equipment can adapt to the complex curved surface, the concave or convex profile of the workpiece, realize full-profile adhesion through spring self-adaptive deformation, expand the clamping contact area, expand the clamping contact area, avoid damaging the workpiece through flexible contact, and solve the poor stability problem caused by the fact that the traditional clamping only fixes the edge.

Description

Technical Field

[0001] This invention relates to the field of headphone processing technology, and more specifically to a smart processing device for Bluetooth headphone shells. Background Technology

[0002] Bluetooth headsets utilize Bluetooth technology in hands-free devices, freeing users from the hassle of tangled wires and allowing for easy and convenient calls in various ways. Since their introduction, Bluetooth headsets have been a valuable tool for mobile business professionals to enhance efficiency.

[0003] Patent No. CN116156409A discloses a device for refining the earphone shell, relating to the field of earphone shell processing. It includes a positioning component, comprising two sets. One set of the positioning component's control seat is fixedly installed on one side of the top of a mounting base, while the other set's control seat is inserted into the other side of the top of the mounting base. This solves the problem that existing clamping tools can only clamp and fix the outermost edge of the earphone shell, resulting in unstable fixation and an inability to limit the maximum clamping force. The positioning component uses adaptive clamping posts of varying lengths to fit and clamp the earphone shell onto its outer contour, providing a large clamping surface and stable use. Furthermore, the control component can limit and adjust the maximum clamping torque during clamping, preventing damage to the earphone shell due to excessive clamping force during use.

[0004] Currently, when refining the bumps, burrs, and scratches on headphone shells, clamping tools are needed to fix the headphone shells for subsequent fine processing. However, due to the diverse and complex shapes of different headphone shells, the clamping tools can only hold and fix the outermost edge of the headphone shell, resulting in a small clamping surface and unstable fixation. During the fine processing of the headphone shell, the shell can rotate or fall, indicating poor stability. Furthermore, the maximum clamping force of the clamping tools cannot be limited, and the clamping force used to fix the headphone shell relies entirely on the worker's experience. Since the headphone shell is relatively thin, it is easy to cause damage due to excessive clamping force. To address this, we propose an intelligent processing device for Bluetooth headphone shells. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a smart processing device for Bluetooth headset shells to solve the problems existing in the background art.

[0006] This invention provides the following technical solution: a smart processing equipment for Bluetooth headset shells, including a workbench, a lower chamber and an upper chamber within the workbench, a U-shaped frame fixedly connected to the top of the workbench, a robotic arm and an industrial camera mounted on the lower side of the U-shaped frame, two positioning frames symmetrically arranged on the upper side of the workbench, and a set of clamping mechanisms on the side of the two positioning frames that are close to each other, a reverse movement mechanism in the upper chamber, the reverse movement mechanism drives the two positioning frames to move closer to each other, thereby driving the two sets of clamping mechanisms to clamp and fix the workpiece, and a pneumatic mechanism in the lower chamber, the pneumatic mechanism adjusting the air pressure in the clamping mechanism to ensure stable clamping.

[0007] Each clamping mechanism includes a main cavity shell, a sealing cover, several air distribution cylinders, a second sealing ring, an air inlet, and several sets of telescopic components. The main cavity shell is fixedly connected to the end of the positioning frame, the sealing cover is fixedly connected to the side of the main cavity shell, and several air distribution cylinders are fixedly connected to the side of the sealing cover. Several small holes are opened in the main cavity shell corresponding to the positions of the air distribution cylinders. The second sealing ring is fitted between the main cavity shell and the sealing cover. The air inlet is fixedly connected to the side of the main cavity shell near the positioning frame. Several sets of telescopic components correspond one-to-one with the air distribution cylinders, and each set of telescopic components can be used to adapt to different shapes of the workpiece.

[0008] Furthermore, each telescopic assembly includes a micro spring, a slider, a first sealing ring, an extension rod, and a rubber ball. The micro spring and slider are both located inside the air distribution cylinder. The first sealing ring is fitted onto the circumferential surface of the slider. One end of the extension rod is fixedly connected to the slider, and the other end passes through the air distribution cylinder and extends to the outside. The rubber ball is fixedly connected to the end of the extension rod.

[0009] Furthermore, the reverse movement mechanism includes a slide rail frame, a lead screw sleeve, a double-threaded lead screw, and a servo motor. The slide rail frame is fixedly connected to the upper cavity. Two lead screw sleeves are symmetrically arranged and are slidably connected inside the slide rail frame. The double-threaded lead screw is rotatably connected between the inner walls of the slide rail frame. The two lead screw sleeves are respectively threaded to different threads of the double-threaded lead screw. The servo motor is fixedly connected to one end of the slide rail frame, and the output end of the servo motor is fixedly connected to the double-threaded lead screw.

[0010] Furthermore, a reinforcing rod is fixedly connected to one side of each of the two positioning frames that are close to each other, and the two reinforcing rods are respectively fixedly connected to the top of the corresponding lead screw sleeve.

[0011] Furthermore, the pneumatic mechanism includes an air pump, a three-way valve, and air pipes. The air pump is fixedly connected to the lower chamber, one end of the three-way valve is fixedly connected to the output end of the air pump, and there are two air pipes, one end of which is connected to the three-way valve, and the other end of which is connected to the corresponding air inlet and fitted with a miniature spring.

[0012] Furthermore, a pressure sensor is provided on the upper side of the main cavity shell, and the pressure sensor is electrically connected to the control system of the pneumatic mechanism.

[0013] Furthermore, the workbench is equipped with a sewage discharge mechanism, which includes a central platform, a shrinkage chamber, and an outlet pipe. The central platform is located at the top center of the workbench, the shrinkage chamber is located below the central platform and communicates with the outlet pipe, and the outlet pipe passes through the bottom of the workbench for discharging processing debris and waste liquid.

[0014] Furthermore, the end of the robotic arm is detachably connected to a processing tool and a nozzle, the nozzle being connected to a cleaning air source for blowing away residues on the workpiece surface.

[0015] The technical effects and advantages of this invention are as follows:

[0016] 1. The present invention, by providing a clamping mechanism, is beneficial for adapting to the complex curved surfaces, concave or convex contours of workpieces. The spring adaptive deformation achieves full contour fit, expands the clamping contact area, and deforms when in contact with the workpiece surface to fill the concave and convex contours, such as the curved surface and grooves of the earphone shell, thus expanding the clamping contact area. At the same time, the flexible contact avoids damage to the workpiece, solving the problem of poor stability caused by traditional clamping that only fixes the edges.

[0017] 2. This invention utilizes a closed-loop control system composed of a pneumatic mechanism and a pressure sensor, which facilitates "shape self-adaptation and force uniformity." After the air pressure stabilizes, the spring force and air pressure form a dynamic balance. The rubber ball maintains its fit through flexible deformation, while allowing for slight displacement of the workpiece, avoiding stress concentration caused by rigid clamping. The "spring active + air pressure passive" force control mode eliminates the need for precise control of the extension rod displacement, adjusting the contact force solely through air pressure, thus simplifying the complexity of the control system. The air pressure acts as "flexible damping," absorbing vibrations and shocks during processing, preventing workpiece breakage caused by sudden external forces in traditional rigid clamping. This allows for adaptation to workpieces of different shapes, expanding the range of applications.

[0018] 3. By incorporating a reverse movement mechanism, this invention facilitates the synchronous reverse movement of the positioning frame, enabling micron-level displacement control, precise adjustment of the clamping position, and meeting the stringent positioning accuracy requirements of precision machining.

[0019] 4. The present invention, by incorporating a sewage discharge mechanism, facilitates the timely collection and discharge of processing debris and waste liquid, and uses high-pressure airflow to sweep away residues on the workpiece surface, maintaining a clean processing environment and improving the degree of automation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a side view of the structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the first cross-sectional structure of the present invention.

[0023] Figure 4 This is a schematic diagram of the second cross-sectional structure of the present invention.

[0024] Figure 5 This is a schematic diagram of the reverse movement mechanism of the present invention.

[0025] Figure 6 This is a schematic diagram of the clamping mechanism of the present invention.

[0026] Figure 7 For the present invention Figure 6 A schematic diagram of the other side of the structure.

[0027] Figure 8 For the present invention Figure 7 A schematic diagram of the explosion structure.

[0028] Figure 9 This is a schematic diagram of the telescopic component structure of the present invention.

[0029] Figure 10 This is a schematic diagram of the pneumatic mechanism structure of the present invention.

[0030] The attached figures are labeled as follows: 1. Workbench; 101. Lower chamber; 102. Upper chamber; 2. Positioning frame; 201. Reinforcing rod; 3. U-shaped frame; 4. Robotic arm; 5. Machining tool; 6. Clamping mechanism; 601. Main cavity shell; 602. Sealing cover; 603. Air distribution cylinder; 604. Miniature spring; 605. Slider; 606. First sealing ring; 607. Extending rod; 608. Rubber ball; 609. Second sealing ring; 6 010. Air inlet; 7. Reverse movement mechanism; 701. Slide rail; 702. Lead screw sleeve; 703. Double threaded lead screw; 704. Servo motor; 8. Pneumatic mechanism; 801. Air pump; 802. T-connector; 803. Air pipe; 804. Air valve; 9. Pressure sensor; 10. Industrial camera; 11. Sewage discharge mechanism; 1101. Center table; 1102. Contraction chamber; 1103. Outlet pipe; 12. Nozzle. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The intelligent processing equipment for Bluetooth headset shells involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Reference Figures 1-10 This invention provides a smart processing device for Bluetooth headset shells, including a workbench 1. The workbench 1 has a lower chamber 101 and an upper chamber 102. A U-shaped frame 3 is fixedly connected to the top of the workbench 1. A robotic arm 4 and an industrial camera 10 are installed on the lower side of the U-shaped frame 3. Two positioning frames 2 are symmetrically arranged on the upper side of the workbench 1. A set of clamping mechanisms 6 is provided on the side of the two positioning frames 2 that are close to each other. A reverse movement mechanism 7 is provided in the upper chamber 102. The reverse movement mechanism 7 drives the two positioning frames 2 to move closer to each other, thereby driving the two sets of clamping mechanisms 6 to clamp and fix the workpiece. A pneumatic mechanism 8 is provided in the lower chamber 101. The pneumatic mechanism 8 adjusts the air pressure in the clamping mechanisms 6 to ensure stable clamping.

[0033] Each clamping mechanism 6 includes a main cavity shell 601, a sealing cover 602, several air distribution cylinders 603, a second sealing ring 609, an air inlet 6010, and several sets of telescopic components. The main cavity shell 601 is fixedly connected to the end of the positioning frame 2, the sealing cover 602 is fixedly connected to the side of the main cavity shell 601, and several air distribution cylinders 603 are fixedly connected to the side of the sealing cover 602. Several small holes are opened in the main cavity shell 601 corresponding to the positions of the air distribution cylinders 603. The second sealing ring 609 is fitted between the main cavity shell 601 and the sealing cover 602. The air inlet 6010 is fixedly connected to the side of the main cavity shell 601 near the positioning frame 2. Several sets of telescopic components correspond one-to-one with the air distribution cylinders 603, and each set of telescopic components can adapt to different shapes of the workpiece.

[0034] Each telescopic assembly includes a miniature spring 604, a slider 605, a first sealing ring 606, an extension rod 607, and a rubber ball 608. The miniature spring 604 and the slider 605 are both located inside the air distribution cylinder 603. The first sealing ring 606 is fitted onto the circumferential surface of the slider 605. One end of the extension rod 607 is fixedly connected to the slider 605, and the other end passes through the air distribution cylinder 603 and extends to the outside. The rubber ball 608 is fixedly connected to the end of the extension rod 607.

[0035] In this embodiment, it is necessary to specifically explain that: the workbench 1 is the basic carrier of the equipment, and the interior adopts an upper and lower layered cavity design. The lower cavity 101 is located at the bottom of the workbench 1 and is used to install the pneumatic mechanism 8, which includes air pump 801, three-way pipe 802 and other air source components. Compressed air is delivered to the clamping mechanism 6 through the air pipe 803. The upper cavity 102 is located at the upper layer of the workbench 1 and is used to install the reverse movement mechanism 7. The double threaded screw 703 is driven to rotate by the servo motor 704, and finally the synchronous reverse movement of the two side positioning frames 2 is realized. The U-shaped frame 3 forms the support frame of the processing area. The lower side is installed with the robotic arm 4 and the industrial camera 10 by bolts or buckles. The end of the robotic arm 4 is connected to the processing tool 5 to perform deburring, polishing and other operations. The industrial camera 10 is used to capture the workpiece position image to assist the vision positioning system in calibrating the clamping and processing path. A set of clamping mechanisms 6 is fixed at the end of the positioning frame 2. When the reverse movement mechanism 7 drives the two positioning frames 2 to move in the opposite direction, the clamping mechanisms 6 on both sides move closer to the workpiece synchronously. The full contour clamping is realized through the adaptive deformation of the telescopic component.

[0036] The main cavity shell 601 and the sealing cover 602 are made of aluminum alloy or engineering plastic, and the surface is anodized to improve wear resistance. The main cavity shell 601 is fixed to the end of the positioning frame 2 by bolts. Several small holes are opened at the corresponding positions of the air distribution cylinder 603 to introduce air pressure into the air distribution cylinder 603. The sealing cover 602 cooperates with the second sealing ring 609 to prevent air pressure leakage and ensure the stability of the driving force of the telescopic component. Several air distribution cylinders 603 are set according to the size of the workpiece. The whole is a cylindrical cylinder fixed to the outside of the sealing cover 602. The inside is a hollow cavity, which is connected to the air passage of the main cavity shell 601 through small holes. It serves as the installation carrier of the telescopic component and provides support force for the extension rod 607 through the internal air pressure change. The air inlet 6010 is a quick-connect air pipe connector, which is connected to the three-way pipe 802 of the air pressure mechanism 8 through the air pipe 803 to realize the branch supply of air source.

[0037] In each telescopic assembly, a miniature spring 604 abuts against the bottom of the air distribution cylinder 603 at one end and against the slider 605 at the other end. In its natural state, it keeps the extension rod 607 in its initial extended state and provides a restoring elastic force. The slider 605 is made of wear-resistant engineering plastic and is covered with a first sealing ring 606 to provide a seal. It slides and seals against the inner wall of the air distribution cylinder. The extension rod 607 has a smooth surface and fits with the guide hole at the top of the air distribution cylinder 603 to ensure motion accuracy. It is made of silicone or polyurethane, which has high elasticity and wear resistance. When it contacts the surface of the workpiece, it deforms and fills the concave and convex contours, such as the curved surface and grooves of the earphone shell, to expand the clamping contact area. At the same time, it avoids damage to the workpiece through flexible contact.

[0038] The main difference between this embodiment and the prior art lies in the use of a spring and air pressure collaborative adaptive clamping mechanism and a closed-loop pressure control system. Specifically, in the initial state without air supply, the micro spring 604 is in a naturally extended state, pushing the slider 605 and the extension rod 607 outwards. The rubber ball 608 maintains its maximum extended position. During the contact stage with the workpiece, the positioning frame 2 moves to bring the rubber ball 608 into contact with the workpiece. If there is a depression on the workpiece surface, the extension rod 607 continues to extend due to the lack of obstruction, and the micro spring 604 stretches and stores energy. If the workpiece surface is convex, the extension rod 607 is compressed and retracts, and the micro spring 604 compresses and stores energy. The slider 605 moves towards the bottom of the air distribution cylinder 603. At this time, the air pressure is adjusted, and low-pressure gas is introduced into the air distribution cylinder 603 through the air pressure mechanism 8, forming an air cushion inside the air distribution cylinder to offset part of the spring force, thus reducing the effective stiffness of the micro spring 604. In the depressed area, the micro spring 604 has a larger stretching and stored energy. After the air pressure partially offsets the elastic force, the rubber ball 608 adheres to the bottom of the depression with a smaller force. In the raised area, the micro spring 604 has a smaller energy storage due to compression, and the air pressure provides auxiliary support to prevent the rubber ball 608 from detaching from the raised surface. Regardless of the shape of the workpiece surface, the rubber balls 608 of each telescopic component adhere to the workpiece with a constant contact force, achieving "shape self-adaptation and force uniformity". After the air pressure stabilizes, the spring force and air pressure form a dynamic balance. The rubber ball 608 maintains its adhesion through flexible deformation, while allowing slight displacement of the workpiece, avoiding stress concentration caused by rigid clamping. The force control mode of "spring active + air pressure passive" eliminates the need for precise control of the extension rod displacement. The contact force is adjusted only by air pressure, simplifying the complexity of the control system. As a "flexible damper", the air pressure can absorb the vibration and impact during processing, avoiding the workpiece breakage caused by sudden external forces in traditional rigid clamping. It can adapt to workpieces of different shapes, expanding the range of applications.

[0039] The above structure is the main structure of this embodiment, which solves the processing and fixing problem caused by the shape of the workpiece in the prior art. The extension rod 607, rubber ball 608, etc. are existing structures. The specific structure and connection method of the reverse movement mechanism 7 are not described in detail in this embodiment. In addition, how the pneumatic mechanism 8 outputs gas is also in the prior art. Therefore, this application does not make detailed limitations.

[0040] Refer to 3 and Figure 5 The reverse movement mechanism 7 includes a slide rail frame 701, a lead screw sleeve 702, a double-threaded lead screw 703, and a servo motor 704. The slide rail frame 701 is fixedly connected to the upper chamber 102. Two lead screw sleeves 702 are symmetrically arranged and are slidably connected to the slide rail frame 701. The double-threaded lead screw 703 is rotatably connected to the inner wall of the slide rail frame 701. The two lead screw sleeves 702 are respectively threaded to different threads of the double-threaded lead screw 703. The servo motor 704 is fixedly connected to one end of the slide rail frame 701, and the output end of the servo motor 704 is fixedly connected to the double-threaded lead screw 703.

[0041] In this embodiment, it should be specifically noted that: the slide rail frame 701 is made of high-strength aluminum alloy or cast iron and is fixed to the inner wall of the upper chamber 102 by bolts, serving as the support frame for the entire mechanism. Two parallel sliding rails are machined inside to constrain the movement direction of the lead screw sleeve 702, ensuring linear motion accuracy. Two lead screw sleeves 702 are symmetrically arranged, located on the left and right sides of the slide rail frame 701 respectively, allowing only linear movement along the rail direction. The upper part is fixedly connected to the reinforcing rod 201 by bolts, transmitting the movement of the lead screw sleeve 702 to the positioning frame 2. The two lead screw sleeves 702 are respectively... The left and right threads of the double-threaded lead screw 703 mesh with each other to ensure that the lead screw sleeve 702 moves in opposite directions. The middle part of the double-threaded lead screw 703 is a smooth shaft, and the two ends are machined with left-hand and right-hand threads respectively to form a reverse lead screw structure. The output shaft of the servo motor 704 is directly connected to the double-threaded lead screw 703 through a coupling. By driving the double-threaded lead screw 703 to rotate in both forward and reverse directions, it drives the two lead screw sleeves 702 to move in opposite directions, and finally drives the two positioning frames 2 to move in opposite directions, so as to realize the function of clamping the workpiece. It can achieve micron-level displacement control and meet the stringent requirements of precision machining for clamping position.

[0042] Reference Figure 5 Two positioning frames 2 are fixedly connected to a reinforcing rod 201 on one side close to each other, and the two reinforcing rods 201 are fixedly connected to the top of the corresponding screw sleeve 702 respectively.

[0043] In this embodiment, it should be specifically noted that: the reinforcing rod 201 is made of high-strength aluminum alloy or steel, and its surface is treated with blackening to prevent rust. It serves as the connection hub between the positioning frame 2 and the lead screw sleeve 702, transmitting the driving force for reverse movement.

[0044] Reference Figure 10 The pneumatic mechanism 8 includes an air pump 801, a three-way pipe 802, and an air pipe 803. The air pump 801 is fixedly connected to the lower chamber 101. One end of the three-way pipe 802 is fixedly connected to the output end of the air pump 801. There are two air pipes 803, one end of which is connected to the three-way pipe 802, and the other end of which is connected to the corresponding air inlet 6010 and a miniature spring 604 is installed.

[0045] In this embodiment, it should be specifically noted that: the air pump 801 adopts a miniature diaphragm pump or a screw air pump, which is fixed to the bottom of the lower chamber 101 by bolts. As the core of the air source, it provides compressed air of 0.1-0.5MPa. It is connected to the control system to receive air pressure adjustment commands. One end of the three-way pipe 802 is sealed to the air outlet of the air pump 801, and the other end is divided into two branch interfaces, which are respectively connected to two air pipes 803 to realize the branch supply of air source. During operation, the compressed air output by the air pump 801 is evenly distributed to the clamping mechanisms 6 on both sides to ensure synchronous adjustment of air pressure on both sides.

[0046] Reference Figures 6-8 A pressure sensor 9 is provided on the upper side of the main cavity shell 601, and the pressure sensor 9 is electrically connected to the control system of the pneumatic mechanism 8.

[0047] In this embodiment, it should be specifically noted that: the pressure sensor 9 is a thin-film or strain gauge sensor, which is fixed to the center of the top surface of the main cavity shell 601 by screws to ensure that its sensing area is aligned with the force path of the telescopic component below. It can directly monitor the comprehensive stress transmitted from the telescopic component to the main cavity shell, avoid the force transmission lag caused by the flexible deformation of the rubber ball 608, and ensure that the measured value truly reflects the clamping force state. The data is fed back to the control system to dynamically adjust the air valve 804 of the air pressure mechanism 8. For example, when a group of rubber balls 608 are under greater pressure due to the protrusion of the workpiece, the system automatically reduces the air pressure of the corresponding air cylinder to reduce the effective force of the spring and avoid local overload. It can be used in conjunction with the industrial camera 10 to capture workpiece shape data, predict the clamping force requirements of each area in advance, and adjust the air pressure in advance to achieve "predictive self-adaptation".

[0048] Reference Figure 4 The workbench 1 is equipped with a sewage discharge mechanism 11, which includes a central platform 1101, a shrinkage chamber 1102 and an outlet pipe 1103. The central platform 1101 is located at the top center of the workbench 1, the shrinkage chamber 1102 is located below the central platform 1101 and is connected to the outlet pipe 1103, and the outlet pipe 1103 passes through the bottom of the workbench 1 to discharge processing debris and waste liquid.

[0049] In this embodiment, it should be specifically noted that: the center platform 1101 is made of stainless steel or high-strength engineering plastic, and its surface is treated with anti-slip and wear-resistant properties. It has a disc-shaped or square platform structure and is set at the top center of the worktable 1. It is fixed to the worktable 1 by welding or bolts. Its surface is slightly lower than the top plane of the worktable 1, forming a certain recessed area, so that the debris and waste liquid generated during the processing can naturally converge to the center for easy collection later. The surface of the center platform 1101 can be provided with positioning grooves or adsorption devices to assist in workpiece positioning and prevent workpiece displacement during processing. The shrinkage cavity 1102 is located below the center platform 1101 and is wider at the top and narrower at the bottom. The chamber is funnel-shaped or truncated cone-shaped with smooth walls and an optimized tilt angle to ensure that debris and waste liquid can slide smoothly. The shrinkage chamber 1102 is connected to the bottom of the central platform 1101. The two can be integrally formed or connected by a sealing flange to ensure the sealing of the connection and prevent waste liquid leakage. The diameter reduction design increases the flow rate of debris and waste liquid and reduces the risk of blockage. At the same time, it plays a preliminary crushing and guiding role for larger debris, so that it can smoothly enter the subsequent pipeline. The outlet pipe 1103 is made of corrosion-resistant PVC or metal pipe to discharge the debris and waste liquid that have been pre-treated by the shrinkage chamber from the equipment, realizing the centralized treatment of processing waste.

[0050] Reference Figure 4The robotic arm 4 is detachably connected to a processing tool 5 and a nozzle 12. The nozzle 12 is connected to a cleaning air source for blowing away residues on the workpiece surface.

[0051] In this embodiment, it should be specifically noted that: the end of the robotic arm 4 adopts a modular quick-change interface, such as a hydraulic quick-change connector or a mechanical snap-fit ​​interface. For the processing tool 5 and the nozzle 12, corresponding adapter interfaces are designed to ensure convenient and quick installation and disassembly. For example, the hydraulic quick-change connector can be automatically connected and disconnected through a hydraulic locking device, reducing the replacement time to a few seconds; the mechanical snap-fit ​​interface can achieve quick loading and unloading of tools by rotating or pressing the snap. The nozzle 12 is connected to an independent clean air source through a high-pressure air pipe. The air source can be a compressed air storage tank or an air compressor to ensure sufficient purging force. When the clean air source is turned on, the high-pressure gas is ejected at high speed through the nozzle, forming a strong airflow. The airflow impacts the surface of the workpiece, blowing away the residual debris, dust, coolant and other impurities, which fall into the sewage discharge mechanism 11, completing the cleaning process.

[0052] Working principle of the invention:

[0053] The main problem solved by this embodiment is that, by using a spring and air pressure collaborative adaptive clamping mechanism and a closed-loop pressure control system, it addresses the issues of easy rotation and dropping caused by the small contact area in traditional clamping methods, which are characterized by complex shapes, curved surfaces, protrusions, and other irregular contours of Bluetooth headset shells, thus achieving stable clamping across the entire contour. Furthermore, by utilizing an adjustable air pressure design, it solves the problem that traditional clamping methods, which rely on worker experience or open-loop control, are prone to causing excessive clamping force that damages thin-shell workpieces, or insufficient force that leads to workpiece slippage.

[0054] The specific steps are as follows:

[0055] S1. Equipment Preparation Stage:

[0056] S101 Workpiece pre-positioning: Place the Bluetooth headset shell to be processed on the center stage 1101 of the worktable 1. The workpiece is in the middle position of the two sets of clamping mechanisms 6. Start the industrial camera 10 to capture the shape image of the workpiece. Analyze the workpiece contour data through the vision positioning system to generate the clamping path and air pressure pre-adjustment parameters.

[0057] S102 clamping mechanism initialization: The double threaded screw 703 is driven to rotate by the servo motor 704, which drives the two screw sleeves 702, the reinforcing rod 201 and the positioning frame 2 to move outward to the maximum opening position of the two clamping mechanisms 6, making room for the workpiece to be placed.

[0058] S2, Workpiece clamping stage:

[0059] S201 Adaptive Fitting: The servo motor 704 drives the two positioning frames 2 to move closer to each other synchronously until the rubber ball 608 contacts the workpiece surface. If there is a depression on the workpiece surface, the rubber ball 608 continues to extend due to the lack of obstruction, and the micro spring 604 stretches and stores energy. If there is a protrusion on the workpiece surface, the rubber ball 608 is compressed and retracts, the micro spring 604 is compressed and stores energy, and the slider 605 moves towards the bottom of the air distribution cylinder 603.

[0060] S202 Pressure Regulation and Force Control Closed Loop:

[0061] Pressure sensor 9 monitors the overall stress of the main cavity shell 601 in real time and feeds the data back to the control system. The control system adjusts the internal air pressure from the main cavity shell 601 to the air distribution cylinder 603 through air valve 804 based on the workpiece contour data and real-time stress value. Low-pressure gas is introduced into the recessed area to offset part of the spring force, so that the rubber ball 608 fits the bottom of the recess with a smaller force. The raised area is supported by auxiliary air pressure to prevent the rubber ball 608 from detaching from the raised surface. Finally, the rubber ball 608 of each telescopic component fits the entire contour of the workpiece with a constant contact force. The spring force and air pressure form a dynamic balance to ensure stable clamping and no stress concentration.

[0062] S3. Processing Execution Stage: According to the processing requirements, the processing tool 5 is changed through the quick-change interface at the end of the robotic arm 4, and the tool position is calibrated through the industrial camera 10 to ensure the accuracy of the processing path. The robotic arm 4 drives the processing tool 5 to perform fine processing on the workpiece according to the preset program. During the process, the industrial camera 10 monitors the processing progress and workpiece position in real time. If there is any deviation, the compensation mechanism is automatically triggered. The debris and waste liquid generated during processing fall into the equipment and are discharged through the shrink chamber 1102 and the outlet pipe 1103 to achieve centralized waste treatment.

[0063] S4. Workpiece Cleaning and Unloading Stage: After processing, nozzle 12 is connected to a clean air source to blow away residual debris and dust on the workpiece surface under high pressure. Impurities fall into the sewage discharge mechanism 11 and are discharged. The air pressure mechanism 8 releases the air pressure in the air distribution cylinder 603. The micro spring 604 resets and drives the rubber ball 608 to reset. The reverse movement mechanism 7 drives the two positioning frames 2 to move away from each other, releasing the workpiece and taking out the processed Bluetooth headset shell, completing one processing cycle. The system automatically stores the clamping air pressure, tool path and other parameters of different types of workpieces, which can be directly called up in the next processing to improve production efficiency.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A Bluetooth headset shell intelligent processing equipment, comprising a workbench (1), characterized in that: The workbench (1) is provided with a lower chamber (101) and an upper chamber (102), the top of the workbench (1) is fixedly connected with a U-shaped frame (3), the lower side of the U-shaped frame (3) is provided with a mechanical arm (4) and an industrial camera (10), the upper side of the workbench (1) is symmetrically provided with two positioning frames (2), one side of the two positioning frames (2) close to each other is provided with a set of clamping mechanisms (6), the upper chamber (102) is provided with a reverse moving mechanism (7), the reverse moving mechanism (7) drives the two positioning frames (2) to move close to each other, and then drives the two sets of clamping mechanisms (6) to clamp and fix workpieces, the lower chamber (101) is provided with a gas pressure mechanism (8), the gas pressure mechanism (8) adjusts the gas pressure in the clamping mechanism (6) to ensure stable clamping; Each set of clamping mechanisms (6) comprises a main cavity shell (601), a sealing cover (602), a plurality of gas distribution cylinders (603), a second sealing ring (609), an air inlet (6010) and a plurality of sets of telescopic assemblies, the main cavity shell (601) is fixedly connected to the end of the positioning frame (2), the sealing cover (602) is fixedly connected to the side of the main cavity shell (601), the plurality of gas distribution cylinders (603) are fixedly connected to the side of the sealing cover (602), a plurality of small holes are formed in the main cavity shell (601) corresponding to the positions of the gas distribution cylinders (603), the second sealing ring (609) is embeddedly installed between the main cavity shell (601) and the sealing cover (602), the air inlet (6010) is fixedly connected to the side of the main cavity shell (601) close to the positioning frame (2), and the plurality of sets of telescopic assemblies correspond to the gas distribution cylinders (603) in a one-to-one manner, and each set of telescopic assembly is adapted to the different shapes of workpieces; The telescopic assembly comprises a micro spring (604), a sliding block (605), a first sealing ring (606), an extending rod (607) and a rubber ball (608), the micro spring (604) and the sliding block (605) are arranged in the gas distribution cylinder (603), the first sealing ring (606) is embeddedly installed on the circumferential surface of the sliding block (605), one end of the extending rod (607) is fixedly connected with the sliding block (605), and the other end penetrates through the gas distribution cylinder (603) and extends to the outside, and the rubber ball (608) is fixedly connected to the end of the extending rod (607). The gas pressure mechanism (8) comprises a gas pump (801), a three-way pipe (802) and a gas pipe (803), the gas pump (801) is fixedly connected in the lower chamber (101), one end of the three-way pipe (802) is fixedly connected to the output end of the gas pump (801), and the gas pipe (803) is provided with two ends, one end of each of the two ends is connected with the three-way pipe (802), and the other end of each of the two ends is connected with the corresponding air inlet (6010) and is provided with a micro spring (604); The upper side of the main cavity shell (601) is provided with a pressure sensor (9), the pressure sensor (9) is electrically connected with the control system of the gas pressure mechanism (8), the gas pressure mechanism (8) adjusts the gas pressure in the gas distribution cylinder (603), and the self-adapting deformation of the micro spring (604) is matched, so that the telescopic assembly is adapted to the different shapes of workpieces and stable clamping is realized.

2. The intelligent processing equipment for Bluetooth headset shell according to claim 1, characterized in that: The reverse moving mechanism (7) comprises a slide rail frame (701), a screw rod sleeve (702), a double thread screw rod (703) and a servo motor (704), the slide rail frame (701) is fixedly connected in the upper chamber (102), the screw rod sleeves (702) are symmetrically provided with two, and are both slidingly connected in the slide rail frame (701), the double thread screw rod (703) is rotationally connected between the inner walls of the slide rail frame (701), the two screw rod sleeves (702) are respectively threadedly connected to different threads of the double thread screw rod (703), and the servo motor (704) is fixedly connected to one end of the slide rail frame (701), and the output end of the servo motor (704) is fixedly connected to the double thread screw rod (703).

3. The intelligent processing equipment for Bluetooth headset shell according to claim 2, characterized in that: The two positioning frames (2) are fixedly connected with reinforcing rods (201) on one side close to each other, and the two reinforcing rods (201) are respectively fixedly connected to the top of the corresponding screw rod sleeve (702).

4. The intelligent processing equipment for Bluetooth headset shell according to claim 1, characterized in that: The workbench (1) is provided with a sewage discharge mechanism (11), the sewage discharge mechanism (11) comprises a center table (1101), a contraction cavity (1102) and an outlet pipe (1103), the center table (1101) is arranged on the top center of the workbench (1), the contraction cavity (1102) is arranged below the center table (1101) and communicates with the outlet pipe (1103), and the outlet pipe (1103) penetrates through the bottom of the workbench (1) and is used for discharging machining chips and waste liquid.

5. The intelligent processing equipment for Bluetooth headset shell according to claim 1, characterized in that: The mechanical arm (4) is detachably connected with a machining tool (5) and a nozzle (12) at the tail end, the nozzle (12) is connected with a cleaning gas source and is used for blowing the residual on the surface of a workpiece.

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