An assembling device and a cosmetic box assembling process

Abstract

This invention discloses an assembly device and a cosmetic box assembly process, relating to the technical field of cosmetic box processing. The cosmetic box assembly device includes a main control console, a rotating ring, a drive mechanism, at least three loading stations, and two unloading stations. The rotating ring is rotatably positioned above the main control console, with multiple mounting bases evenly distributed around its circumference. The drive mechanism drives the rotating ring to rotate intermittently, causing each mounting base to flow along a predetermined path. Each loading station is equipped with an aluminum bottom shell loading assembly, a middle shell loading assembly, and a bottom plate loading assembly. The unloading stations include a qualified product unloading area and a non-qualified product unloading area. The main control console integrates a dust-adhesive assembly, a pressure plate assembly, an infrared positioning assembly, and a pushing assembly. This invention provides a highly efficient, precise, and stable automated cosmetic box assembly device.

Description

Technical Field

[0001] This invention relates to the technical field of cosmetic box processing, and in particular to an assembly device and a cosmetic box assembly process. Background Technology

[0002] The assembly of makeup boxes involves the entire production process of feeding, positioning, pressing, testing, and sorting the core components of the makeup box, such as the aluminum bottom shell, middle shell, and base plate, according to process standards. It is the core link in the industrial mass production of makeup boxes, which directly determines the product's assembly accuracy, appearance integrity, and production efficiency. Currently, most makeup boxes adopt a snap-fit ​​nesting structure, which requires high concentricity of components and fitting of the assembly.

[0003] Existing cosmetic box assembly technologies are mainly divided into two categories: linear automated production lines and manual semi-automated assembly. Linear production lines are arranged along a straight line with loading, assembly, inspection, and unloading stations, and the workpieces are transported by conveyor belts to complete the process flow. Manual semi-automated assembly relies on workers to manually complete loading, alignment, and pressing. Some simple automated equipment is only equipped with a single loading structure and a centralized unloading station, and relies on conventional motor drives to realize the basic station flow.

[0004] Existing cosmetic box assembly equipment suffers from long waiting times and low space utilization at linear assembly line stations, making it impossible to achieve parallel operation at multiple stations. With only a single unloading station, qualified and unqualified products are mixed and sorted, and unqualified products are prone to flowing into the next process. It is difficult to meet the needs of the beauty industry for small-batch, multi-specification production, and has a high degree of reliance on manual labor, resulting in low production efficiency and yield. Summary of the Invention

[0005] This application provides an assembly device and a makeup box assembly process, which is an automated makeup box assembly device that is efficient, precise and stable.

[0006] This application provides an assembly device and a cosmetic box assembly process, which adopts the following technical solution: An assembly device and a cosmetic box assembly process are disclosed. The cosmetic box assembly device includes a main control console, a rotating ring, a drive mechanism, at least three loading stations, and two unloading stations. The rotating ring is rotatably positioned above the main control console, and multiple mounting bases are evenly distributed around its circumference. The drive mechanism drives the rotating ring to rotate intermittently, causing each mounting base to flow along a predetermined path. The loading stations are respectively equipped with an aluminum bottom shell loading assembly, a middle shell loading assembly, and a bottom plate loading assembly. The unloading stations include a qualified product unloading area and a non-qualified product unloading area. The main control console integrates a dust-adhesive assembly, a pressure plate assembly, an infrared positioning assembly, and a pushing assembly.

[0007] Preferably, the mounting base and the rotating ring are connected by a detachable structure. The mounting base is provided with a receiving groove that matches the shape of the aluminum base shell. The corners of the receiving groove are chamfered, and bionic brachial components are provided on all four side walls.

[0008] Preferably, the bionic wrist and foot assembly includes a contact rod, a damping positioning component, and a linkage. The middle part of the contact rod is rotatably connected to the limiting groove, its bottom is linked with the linkage, and a flexible suction cup is provided at the top. The damping positioning component includes a micro torsional damper and an elastic preload, which are respectively provided at the hinge shaft of the contact rod.

[0009] Preferably, the contact rod adopts a two-section hinge structure, the miniature torsional damper is embedded in the hinge shaft of the two-section contact rod and the hinge shaft between the contact rod and the limiting groove, and the elastic preload is fitted on the outside of the hinge shaft and the preload can be adjusted by a nut.

[0010] Preferably, the surface of the flexible suction cup is provided with an ultra-thin silicone layer with a thickness of 0.3mm, and the top end of the contact rod integrates a micro displacement sensor with a range of 0-10mm and an accuracy of ±0.05mm.

[0011] Preferably, the linkage includes a base, a connecting rod, and a buffer assembly. The connecting rod is slidably disposed in the inner cavity of the base, and a buffer spring is fitted on the outside of the connecting rod. The bottom of the connecting rod forms a hinged transmission relationship with the bottom of each contact rod through a movable component.

[0012] Preferably, the buffer assembly includes a linkage structure consisting of a stainless steel connecting rod and an aluminum alloy movable part. The two ends of the movable part are respectively hinged to the connecting rod and the contact rod, and the number of the movable part corresponds to the number of the contact rod.

[0013] Preferably, the elastic preload is a disc spring with a preload adjustment range of 0.2-0.8N, and the miniature torsional damper has an adjustment range of 0.05-0.3N·m.

[0014] Preferably, an assembly process for a makeup box assembly device, based on the aforementioned makeup box assembly device, includes the following steps: S1. The aluminum base shell is conveyed to the receiving groove of the mounting base through the first feeding station, and the aluminum base shell is initially positioned by the receiving groove; S2. Dust removal is performed inside the aluminum base using a dust-adhesive assembly; S3. The intermediate shell is transferred to the aluminum bottom shell through the second feeding station, and pressure is applied by the pressure plate assembly to make the intermediate shell and the aluminum bottom shell snap together to form a semi-finished product; S4. The base plate is transferred to the intermediate shell of the semi-finished product through the third loading station to complete the initial assembly; S5. Use an infrared positioning component to detect whether there is any misalignment in the assembly position of the base plate, intermediate shell, and aluminum base shell; S6. When an assembly position deviation is detected, the product is transferred to the non-conforming product unloading area via the pusher assembly; when the inspection is passed, the product is transferred to the conforming product unloading area.

[0015] Preferably, in step S1, after the aluminum base is placed into the receiving groove of the mounting base, the bottom of the receiving groove applies pressure to the linkage, and the linkage drives the contact rod to move synchronously. Under the pre-tightening force of the elastic pre-tightening component, the wrist suction cup at the top of the contact rod adheres to the outer wall of the aluminum base, realizing the initial centering positioning of the aluminum base. At the same time, the miniature displacement sensor at the wrist suction cup detects the contact position in real time and transmits the data to the embedded single-chip microcomputer control module. If the center deviation of the aluminum base is detected to be >0.3mm, the control module drives the adjustable damping positioning component to finely adjust the retraction force of the contact rod, pulling the aluminum base back to the center position to ensure positioning accuracy.

[0016] In summary, this application has the following beneficial effects: 1. To address the issues of inefficient workflow and the inability of multiple workstations to operate in parallel at the makeup box assembly station, this invention further optimizes the process by incorporating a rotating ring, a drive mechanism, and circumferentially distributed mounting bases. These features enable the mounting bases to rotate intermittently and precisely, thereby eliminating workstation waiting times and improving production cycle time.

[0017] 2. To further optimize the function of the makeup box, which suffers from disordered material feeding of core components and fragmented assembly processes, this invention also sets up three dedicated material feeding stations for the aluminum bottom shell, middle shell, and base plate, so as to achieve the effect of orderly material feeding of each component and smooth connection of the assembly process.

[0018] 3. To further optimize the product sorting process and prevent defective products from flowing out, this invention also includes a dual unloading station for qualified and unqualified products, which enables immediate sorting of qualified and unqualified products and prevents defective products from circulating.

[0019] 4. To further optimize the system and address issues such as assembly dust pollution, large positioning deviations, and lack of closed-loop detection, this invention also integrates dust collection, pressure plate, infrared positioning, and material pushing components to achieve a closed-loop process encompassing pre-cleaning, press-fitting, precise detection, and automatic material pushing.

[0020] 5. To further optimize the functionality of the aluminum base shell of the makeup box, which suffers from large positioning deviation, easy scratching, and poor compatibility with various specifications, this invention also includes a detachable mounting base. The base is equipped with a chamfered receiving groove and a bionic wrist positioning component, which enables the aluminum base shell to automatically center, prevent scratches, achieve high-precision centering, and quickly adapt to makeup boxes of different specifications.

[0021] 6. In order to solve the problems of high reliance on manual labor, low efficiency and low yield in traditional processes, this invention further optimizes the process by adopting an integrated closed-loop assembly process, which can achieve unmanned and automated production, reduce material loss, improve assembly accuracy and yield, and adapt to the small-batch, multi-specification production of the beauty industry. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the makeup box in Embodiment 1; Figure 2 This is an exploded view of the internal structure of the makeup box in Embodiment 1. Figure 3 This is a schematic diagram of the overall structure of the makeup box assembly equipment in Embodiment 1; Figure 4 This is a schematic diagram of the overall structure of the mounting base in Embodiment 2; Figure 5 This is a schematic diagram of the internal structure of the bionic brachial appendage component in Embodiment 2. Figure 6 This is an exploded view of the mounting base and the substrate in Embodiment 2. Figure 7 This is a schematic diagram of the internal structure of the linkage in Embodiment 2; Figure 8 This is an exploded view of the aluminum base and mounting base in Embodiment 2. Figure 9 This is the process flow diagram in Example 3; Explanation of reference numerals in the attached drawings: 1. Makeup box; 101. Aluminum bottom shell; 102. Middle shell; 103. Base plate; 2. Main control panel; 3. Rotary ring; 4. Fixed plate; 5. Mounting base; 6. Feeding assembly; 7. First transfer robot; 8. Dust-adhesive assembly; 9. Second transfer robot; 10. Pressure plate assembly; 11. Third transfer robot; 12. Infrared positioning assembly; 13. Pushing assembly; 14. Receiving groove; 15. Limiting groove; 16. Bionic wrist assembly; 1601. Linkage component; 160101. Base; 160102. Connecting rod; 160103. Base plate; 160104. Moving part; 1602. Contact rod; 1603. Damping positioning assembly; 1604. Suction cup. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Example 1: This invention discloses an assembly device and a cosmetic box assembly process, such as... Figure 1 and Figure 2 As shown, the makeup box 1 includes an aluminum bottom shell 101, a middle shell 102, and a base plate 103 embedded inside the middle shell 102. The base plate 103, the middle shell 102, and the aluminum bottom shell 101 are sequentially snapped together in a direction from the inside to the outside.

[0025] like Figure 3 As shown, specifically, based on the above-mentioned structure of the makeup box 1, its corresponding assembly equipment includes a main control panel 2 and a rotating ring 3. A fixed plate 4 is fixedly installed on the upper surface of the main control panel 2, and a drive motor is fixedly installed inside the main control panel 2. The top output end of the drive motor is connected to the rotating ring 3 to achieve precise rotation of the rotating ring 3. Several mounting bases 5 are evenly distributed along the circumference of the upper surface of the rotating ring 3 at equal angles, serving as the assembly carriers for the various components of the makeup box 1. At the same time, three loading stations and two unloading stations are arranged sequentially along the clockwise rotation direction of the rotating ring 3. The three loading stations correspond to the loading operations of the aluminum bottom shell 101, the middle shell 102, and the bottom plate 103, respectively, and each station is equipped with a corresponding loading component 6.

[0026] The specific assembly process is as follows: First, the aluminum base shell 101 is loaded through the loading component 6 at the first loading station. Then, the first transfer robot 7 equipped on the main control console 2 transfers the aluminum base shell 101 to the mounting base 5 of the rotating ring 3. Next, the aluminum base shell 101 flows with the rotating ring 3 to the dust removal component 8. The dust removal component 8 is integrated into the main control console 2 and performs dust removal treatment on the inside of the aluminum base shell 101 to ensure the assembly surface is clean. After the treatment is completed, the rotating ring 3 continues to rotate, transferring the aluminum base shell 101 to the second loading station. The second transfer robot 9 of the main control console 2 grabs the intermediate shell 102 from the loading component 6 at this station and transfers it into the aluminum base shell 101. Then, pressure is applied by the pressure plate component 10 on the main control console 2 to make the intermediate shell 102 and the aluminum base shell 101 snap together, forming the semi-finished product of the makeup box 1.

[0027] The semi-finished product continues to flow with the rotating ring 3 to the third loading station. The third transfer robot 11 of the main control console 2 grabs the base plate 103 from the loading component 6 at this station, transfers it, and assembles it into the intermediate shell 102 of the semi-finished product. After assembly, the rotating ring 3 drives the product to the infrared positioning component 12. The infrared positioning component 12 is used to detect whether there is any misalignment in the assembly position of the base plate 103, the intermediate shell 102, and the aluminum base shell 101. If a misalignment is detected, i.e., the product is unqualified, the unqualified product is transferred to one of the unloading stations by the pushing component 13 set on the fixed plate 4 to complete the unloading. If the detection is qualified, the product flows with the rotating ring 3 to another unloading station to complete the unloading operation of the qualified product.

[0028] The core of this invention lies in breaking through the technological inertia of traditional makeup box assembly, deeply integrating precise transmission of the rotating ring 3, multi-station collaboration, pre-cleaning, and closed-loop detection. The rotating ring 3 layout and the collaboration of the dual unloading stations achieve closed-loop efficiency improvement throughout the entire process. Unlike the intermittent operation of traditional linear stations, the rotating ring 3 of this invention precisely rotates in conjunction with the equally angled mounting base 5, enabling parallel operation of each station, completely eliminating station waiting time, and significantly improving production cycle time. At the same time, the dual unloading stations enable immediate sorting of qualified and unqualified products, preventing unqualified products from flowing into the next process, reducing rework losses and material waste. Its space utilization and process continuity far exceed those of linear assembly equipment, making it suitable for the small-batch, multi-specification production needs of the beauty industry.

[0029] In addition, the precise coordination of multiple robotic arms and various components enables unmanned closed-loop production, significantly reducing reliance on manual labor and operational errors. At the same time, the modular design of the equipment is compatible with different specifications of makeup boxes, making production changes convenient. This not only solves the pain points of low efficiency and high cost of traditional manual assembly, but also breaks through the limitations of poor adaptability of conventional automated equipment.

[0030] Example 2, as Figure 5 As shown, the mounting bases 5 are evenly distributed at equal angles along the central axis of the rotating ring 3. The mounting bases 5 and the rotating ring 3 are detachably fixed together by bolts, and the connection structure is stable and reliable, facilitating subsequent assembly, maintenance, and component replacement. The mounting bases 5 have a receiving groove 14 inside for accommodating the aluminum base shell 101. The dimensions of the receiving groove 14 are precisely matched to the external structure of the aluminum base shell 101, which can realize the rapid insertion and initial positioning of the aluminum base shell 101, ensuring the positional stability of the aluminum base shell 101 after assembly.

[0031] like Figure 4 As shown, the receiving groove 14 adopts a rectangular structure design, and all corners are chamfered. On the one hand, this can effectively avoid stress concentration at the corners of the receiving groove 14, thereby improving the structural strength and service life of the mounting base 5; on the other hand, it can prevent the aluminum base 101 from being scratched by the sharp corners of the receiving groove 14 when it is put in or taken out, and at the same time, it facilitates the smooth placement and removal of the aluminum base 101, thereby improving assembly efficiency.

[0032] like Figure 4 and Figure 5 As shown, two limiting grooves 15 are respectively provided on the four sides of the receiving groove 14. A bionic wrist and foot assembly 16 is provided inside the limiting groove 15. The bionic wrist and foot assembly 16 includes a linkage 1601, a touch rod 1602 hinged to the inner wall of the limiting groove 15 in the middle, and an adjustable damping positioning assembly 1603 integrated at the hinge point of the touch rod 1602.

[0033] like Figure 4 and Figure 5As shown, the contact rod 1602 has a two-section hinged structure. Adjustable damping positioning components 1603 are installed at the hinge points between the two sections of the contact rod 1602 and at the hinge point in the middle of the contact rod 1602. The adjustable damping positioning components 1603 are integrated at the two hinge shafts of the contact rod 1602. Specifically, the hinge shaft between the middle section and the inner wall of the limiting groove 15, and the hinge shaft between the two sections of the contact rod 1602. Specifically, a small torsional damper is selected, with a model adapted to the size of the contact rod 1602. The damping adjustment range is 0.05-0.3 N·m, the response speed is ≤0.1s, and it is electrically connected to the embedded microcontroller control module. It can receive fine-tuning commands from the control module and adjust the damping magnitude in real time. Its core function is to control the rotation rate of the contact rod 1602, preventing excessive rotation due to inertia during fine-tuning, and providing stable support for the contact rod 1602 to ensure that the angle and contraction force remain stable after fine-tuning, without rebound.

[0034] The elastic preload component uses a miniature disc spring, which is fitted onto the outside of the hinge shaft. The preload force is adjustable from 0.2 to 0.8 N. In the initial state, it provides a basic preload force to the contact rod 1602, keeping the contact rod 1602 in its initial ready position. The top wrist suction cup 1604 is in a slightly open state. When the control module sends a fine-tuning command, the elastic preload component and the miniature damper work together to achieve precise fine-tuning of the contraction force in conjunction with the rotation of the contact rod 1602. At the same time, after the fine-tuning is completed, the auxiliary damper locks the position of the contact rod 1602 to improve positioning stability.

[0035] Furthermore, the hinge shaft passes through the hinge hole of the contact rod 1602 and the mounting seat on the inner wall of the limiting groove 15, and the hinge ends of the two sections of the contact rod 1602. The miniature damper is embedded inside the hinge hole and fixedly connected to the contact rod 1602. The elastic preload is fitted onto the exposed end of the hinge shaft, and the preload is adjusted by the nut to ensure smooth rotation of the hinge point without loosening, while also ensuring the sensitivity of the damping adjustment.

[0036] The adjustable damping positioning component 1603 consists of a miniature torsional damper and a miniature disc spring. It is electrically connected to an embedded microcontroller control module and can receive commands from the control module to adjust the damping magnitude and preload in real time. This enables precise control of the rotation angle and retraction force of the contact rod 1602, while locking the finely adjusted position to prevent positioning deviation and rebound.

[0037] It is worth further explaining that the hinged design of the two-section contact rod 1602, together with the adjustable damping positioning component 1603 at the hinge point, ensures that the wrist suction cup 1604 at the top of the contact rod 1602 always fits against the side of the aluminum base shell 101. Even if there is a slight curvature or unevenness on the side of the aluminum base shell 101, the contact stability can be ensured by the flexible rotation and damping adjustment of the two sections of the contact rod 1602. At the same time, it avoids damage to the surface of the aluminum base shell 101 caused by excessive local pressure, further improving the accuracy and adaptability of fine-tuning positioning.

[0038] One bottom end of the contact rod 1602 is linked with the linkage 1601. The bottom of the aluminum base 101 is placed inside the receiving groove 14 and pressure is applied to the linkage 1601. Under the action of the linkage 1601, it is linked with the contact rod 1602, so that several contact rods 1602 move synchronously, and the top end of the contact rod 1602 moves synchronously close to the outer wall of the aluminum base 101, so that the aluminum base 101 is initially centered inside the limiting groove 15.

[0039] like Figure 4 and Figure 5 As shown, a flexible wrist suction cup 1604 is provided at the top end of the contact rod 1602. The surface of the wrist suction cup 1604 is covered with an ultra-thin silicone pad with a thickness of 0.3mm and a Shore hardness of 30°. This prevents the metal workpiece from directly contacting the shape memory alloy and prevents scratches and pressure damage to the workpiece surface. At the same time, the silicone pad can enhance the adhesion between the suction cup 1604 and the workpiece surface, and help improve the clamping and adsorption stability. Together with the wrist and negative pressure components, it takes into account both protection and fixation effects.

[0040] like Figure 4 and Figure 5 As shown, a miniature displacement sensor is installed at each of the wrist and foot suction cups 1604, with a range of 0-10mm and an accuracy of ±0.05mm. It can detect the contact position between the surface of the aluminum base shell 101 and the wrist and foot suction cup 1604 in real time and transmit the detection data to the embedded microcontroller control module in real time.

[0041] The embedded microcontroller control module has a main frequency of 1MHz and a response speed of ≤0.2s. The control module has a built-in centering algorithm, which can calculate the deviation between the workpiece center and the base 160101 center in real time based on the data transmitted by the micro displacement sensor. If the workpiece is detected to deviate from the center by more than 0.3mm, the control module immediately sends a fine-tuning command to the two sets of wrists in the corresponding direction. The command is synchronously transmitted to the micro damper at the hinge point of the corresponding contact rod 1602. By adjusting the damping magnitude (in conjunction with the preload of the elastic preload), the retraction force of the contact rod 1602 is precisely adjusted (adjustment range 0.1-0.5N). With the flexible rotation and mechanical balance of the two-stage contact rod 1602, the workpiece is slowly pulled back to the center position, achieving precise fine-tuning positioning.

[0042] The control module can display the centering accuracy data in real time. If the centering error exceeds 0.5mm, an audible and visual alarm will be issued through the small display screen on the surface of the 160101 base, reminding the operator to check the placement of the workpiece, further ensuring positioning accuracy and adapting to the needs of precision scenarios.

[0043] like Figure 6 and Figure 7As shown, the linkage 1601, as the core of power transmission of the bionic brachial component 16, plays a key role in bearing the pressure of the aluminum base shell 101, the synchronous movement of the linkage rod 1602, and the buffering of the impact force when the workpiece is placed in. Specifically, the linkage 1601 includes a base 160101 centrally fixed at the bottom of the receiving groove 14. The base 160101 is made of rigid material and has a hollow columnar structure, which provides a stable installation space for the internal components and ensures uniform force distribution, avoiding deformation caused by the pressure of the workpiece.

[0044] like Figure 6 and Figure 7 As shown, a connecting rod 160102 is centrally located in the vertical direction inside the base 160101. The connecting rod 160102 is made of stainless steel with a rust-proof surface. Its diameter is adapted to the internal mounting cavity of the base 160101, and it slides flexibly along the vertical direction of the base 160101 without any jamming. A buffer spring is coaxially fitted on the outer side of the connecting rod 160102. The buffer spring is a cylindrical helical spring, and its core function is to absorb the instantaneous impact force when the aluminum base shell 101 is placed in. When the aluminum base shell 101 is placed in the receiving groove 14 and pressed on the base plate 160103, the buffer spring can buffer the impact force of the workpiece falling by its own compression deformation, and avoid the impact force being directly transmitted to the contact rod 1602, the hinge point and the limiting groove 15. This not only protects the surface of the aluminum base shell 101 from being scratched by the impact, but also prevents the adjustable damping positioning component 1603 of the hinge point of the contact rod 1602 from being damaged due to excessive instantaneous force, and at the same time lays the foundation for the smooth linkage of the contact rod 1602 in the future.

[0045] like Figure 6 and Figure 7 As shown, the top of the connecting rod 160102 penetrates the upper surface of the base 160101 and is fixedly connected to the substrate 160103. The substrate 160103 has a square structure, and its size is adapted to the bottom of the receiving groove 14. The upper surface is smoothed and covered with a thin silicone pad. The silicone pad is made of the same material as the wrist suction cup 1604 and is used to directly support the bottom of the aluminum base shell 101. This increases the contact area, ensures that the aluminum base shell 101 is placed stably, and further prevents the bottom of the aluminum base shell 101 from being scratched. The substrate 160103 and the connecting rod 160102 are connected by threads, which facilitates disassembly and maintenance, while ensuring the connection strength and preventing loosening caused by workpiece pressure.

[0046] like Figure 6 and Figure 7As shown, the bottom of the connecting rod 160102 penetrates the lower end face of the base 160101 and is connected to eight movable parts 160104. The eight movable parts 160104 are evenly distributed around the bottom outer side of the base 160101, corresponding one-to-one with the eight limiting grooves 15 and eight contact rods 1602 on the four sides of the receiving groove 14, and are movably connected to one bottom end of each contact rod 1602. The movable component 160104 is made of the same aluminum alloy as the base 160101 and has a small hinged seat structure. Its core function is to realize the movable connection between the connecting rod 160102 and the contact rod 1602. Specifically, one end of each movable component 160104 is fixedly hinged to the bottom of the connecting rod 160102 through a hinge pin, and the other end is hinged to the bottom end of the corresponding contact rod 1602 through a hinge pin, forming a flexible rotatable linkage structure. This ensures that the vertical movement of the connecting rod 160102 can be smoothly converted into the rotational movement of each contact rod 1602 around its central hinge point, realizing the synchronous linkage of the eight contact rods 1602.

[0047] like Figure 8 As shown, in the initial state, the buffer spring is in a naturally extended state, driving the substrate 160103 to its highest position. At this time, the connecting rod 160102 is simultaneously in its highest position, and the eight movable parts 160104 are also in a high position along with the connecting rod 160102. Through the hinge structure, the bottom of the eight contact rods 1602 is pulled, and with the preload of the miniature disc springs (elastic preload parts) at the hinge points of the contact rods 1602, the contact rods 1602 maintain their initial ready posture, that is, the tendon suction cups 1604 at the top of the contact rods 1602 are in a slightly open state, which facilitates the insertion of the aluminum base shell 101; when the aluminum base shell 101 is inserted into the receiving groove 14 and pressed onto the substrate 160103, Under the weight of the workpiece, the substrate 160103 moves downward, causing the connecting rod 160102 to slide downward synchronously. The buffer spring is compressed to absorb the impact force of the workpiece being placed in. At the same time, the connecting rod 160102 drives the eight movable parts 160104 at the bottom to move downward synchronously. Each movable part 160104 pushes the bottom of the corresponding contact rod 1602 to rotate downward, so that the eight contact rods 1602 rotate synchronously around the hinge point between the middle part and the inner wall of the limiting groove 15. The wrist suction cup 1604 at the top of the contact rod 1602 gradually approaches the outer wall of the aluminum bottom shell 101 until it is in contact with the side of the aluminum bottom shell 101, realizing the initial centering positioning of the aluminum bottom shell 101.

[0048] When the embedded microcontroller control module sends a fine-tuning command, the miniature torsional damper at the hinge point of the contact rod 1602 adjusts the damping magnitude in real time. Combined with the preload of the miniature disc spring, it precisely adjusts the rotation angle and retraction force of the contact rod 1602. At this time, the eight moving parts 160104 can make adaptive fine-tuning with the slight rotation of the bottom of the corresponding contact rod 1602, ensuring smooth power transmission during the fine-tuning process of the contact rod 1602. This does not affect the fine-tuning accuracy and can also absorb the slight force during the fine-tuning process through the slight deformation of the buffer spring, further improving the positioning stability and ultimately achieving precise centering fine-tuning of the aluminum base 101.

[0049] It is worth noting that, in this embodiment, the fixing method and structural design of the mounting base 5 are not independent component configurations, but are deeply integrated with and synergistically enhance the entire process of subsequent aluminum base shell 101 loading, dust removal, multi-component assembly, precise detection, and unloading. Specifically: Firstly, the detachable bolt fixing of the mounting base 5 and the precise matching design of the receiving groove 14 lay a stable foundation for the feeding and dust-adhesion process of the aluminum base shell 101. The mounting base 5 and the rotating ring 3 are fixed with bolts for easy removal, ensuring a stable connection and facilitating maintenance and replacement. The corresponding base 160101 can be quickly replaced according to different specifications of the aluminum base shell 101, adapting to various production needs. It works in conjunction with the feeding components 6 at subsequent workstations to ensure the versatility of the feeding process. Simultaneously, the dimensions of the receiving groove 14 are precisely matched to the aluminum base shell 101, and the rectangular chamfer design allows for quick insertion and smooth loading / unloading of the aluminum base shell 101, improving feeding efficiency. It also prevents scratches on the aluminum base shell 101, ensuring its surface cleanliness and providing a stable carrier for the subsequent dust removal operation of the dust-adhesive component 8. The initial positioning of the aluminum base shell 101 within the receiving groove 14 prevents shell displacement during dust removal, ensuring that the dust-adhesive component 8 can accurately act on the interior of the aluminum base shell 101, thoroughly removing dust and preventing dust from affecting subsequent snap-fit ​​assembly, achieving seamless connection between the feeding and dust-adhesive processes.

[0050] Secondly, the coordinated design of the bionic brachial component 16 and the linkage 1601 forms a precise linkage with the assembly process of the intermediate shell 102 and the base plate 103, ensuring assembly accuracy. When the aluminum base shell 101 is placed into the receiving groove 14, the linkage 1601 moves synchronously with the linkage rod 1602 under the action of the workpiece's gravity. In conjunction with the elastic pre-tightening component and the damping positioning component 1603, the brachial suction cup 1604 adheres to the side wall of the aluminum base shell 101 to achieve centered positioning. The two-section linkage rod 1602 and the adjustable damping design can adapt to the slight curvature of the side of the aluminum base shell 101, avoiding surface damage while ensuring stable positioning. This precise positioning provides a guarantee for the subsequent assembly of the intermediate shell 102. When the second transfer robot 9 picks up the intermediate shell 102 and transfers it into the aluminum bottom shell 101, the position of the aluminum bottom shell 101 does not shift, ensuring that when the pressure plate assembly 10 applies pressure, the intermediate shell 102 and the aluminum bottom shell 101 are precisely engaged, avoiding loosening of the assembly; when the bottom plate 103 is assembled subsequently, the stable positioning of the aluminum bottom shell 101 can also ensure that the third transfer robot 11 accurately embeds the bottom plate 103 into the intermediate shell 102, reducing assembly deviation, realizing the synergistic effect of "positioning-assembly", and greatly improving the qualification rate of semi-finished product assembly.

[0051] Thirdly, the precise positioning system and the infrared detection process work in deep collaboration to improve detection accuracy and reduce the defect rate. The miniature displacement sensor at the wrist suction cup 1604 is linked with the embedded microcontroller control module, which can detect the positioning deviation of the aluminum base shell 101 in real time and automatically fine-tune it to ensure that the center alignment of the aluminum base shell 101, the intermediate shell 102, and the base plate 103 after assembly is maintained within a precise range. This pre-positioning precision, together with the subsequent infrared positioning component 12, provides double protection. When the infrared detection component detects the assembly position of the three components, since the workpiece has been precisely centered, misjudgment caused by positioning deviation can be effectively avoided. At the same time, it can quickly identify assembly offset problems, providing a precise basis for the pusher component 13 to transfer defective products to the unloading station. This achieves a closed-loop collaboration of "positioning-detection-sorting", reducing the flow of defective products into the next process and reducing rework losses.

[0052] Example 3, such as Figure 9 As shown, based on the above-mentioned makeup box 1 assembly equipment, the assembly process of the makeup box 1 assembly equipment includes the following steps: S1: Loading and initial positioning of aluminum base shell 101; T1. Loading Operation: The aluminum base shell 101 is automatically loaded through the loading component 6 equipped at the first loading station of the equipment, providing raw materials for subsequent assembly; T2. Transfer and placement of base 160101: The first transfer robot 7 of the main control panel 2 grabs the aluminum bottom shell 101 after loading and accurately transfers it to the mounting base 5 on the rotating ring 3. T3. Initial Centering Positioning: After the aluminum base shell 101 is placed into the receiving groove 14 of the mounting base 5, its bottom applies pressure to the linkage 1601. The linkage 1601 drives the eight contact rods 1602 to move synchronously. Under the pre-tightening force of the elastic pre-tightening member, the wrist suction cup 1604 at the top of the contact rod 1602 adheres to the outer wall of the aluminum base shell 101, realizing the initial centering positioning of the aluminum base shell 101. At the same time, the miniature displacement sensor at the wrist suction cup 1604 detects the contact position in real time and transmits the data to the embedded single-chip microcomputer control module. If the center deviation of the aluminum base shell 101 is detected to be >0.3mm, the control module drives the adjustable damping positioning component 1603 to fine-tune the retraction force of the contact rods 1602, pulling the aluminum base shell 101 back to the center position to ensure positioning accuracy.

[0053] S2: Cleaning dust from aluminum base shell 101; Driven by the drive motor, the rotating ring 3 rotates precisely, transferring the aluminum base shell 101, which has completed its initial positioning, to the dust removal component 8. The dust removal component 8, integrated into the main control panel 2, removes dust from the inside of the aluminum base shell 101, thoroughly cleaning the dust and impurities on the assembly surface, preventing dust from affecting the stability of subsequent snap-fit ​​assembly, and ensuring the cleanliness of the assembly surface.

[0054] S3: Assembly and semi-finished product forming of intermediate shell 102; T1. Loading and transfer of intermediate shell 102: The rotating ring 3 continues to rotate, transferring the cleaned aluminum bottom shell 101 to the second loading station. The second transfer robot 9 of the main control panel 2 grabs the intermediate shell 102 from the loading component 6 of the station and accurately transfers it into the aluminum bottom shell 101. T2. Snap-fit ​​assembly: The pressure plate assembly 10 on the main control panel 2 applies uniform pressure to the intermediate shell 102, so that the intermediate shell 102 and the aluminum bottom shell 101 can be precisely snapped together to form a semi-finished product of the makeup box 1; during this process, the bionic wrist assembly 16 of the mounting base 5 continuously maintains the stable positioning of the aluminum bottom shell 101 to avoid the shell from shifting during assembly and causing the snap-fit ​​to misalign.

[0055] S4: Base plate 103 assembly; Rotary ring 3 drives the semi-finished makeup box 1 to the third loading station. The third transfer robot 11 of the main control panel 2 grabs the base plate 103 from the loading component 6 of the station, accurately transfers it and embeds it into the middle shell 102 of the semi-finished product, completing the initial assembly of the three core components of the makeup box 1.

[0056] S5: Assembly positioning inspection; The rotating ring 3 drives the assembled makeup box 1 to the infrared positioning component 12. This component accurately detects the assembly position of the base plate 103, the middle shell 102, and the aluminum base shell 101 to determine whether there is a positional deviation, providing a basis for subsequent sorting operations. During the detection process, the precise positioning of the mounting base 5 can effectively avoid detection errors caused by workpiece deviation.

[0057] S6: Sorting and unloading of qualified and unqualified products; T1. Unloading of unqualified products: If the infrared positioning component 12 detects that the assembly position of the makeup box 1 is off, it means that the product is unqualified. The push component 13 on the fixed plate 4 will immediately act to transfer the unqualified product to one of the unloading stations, complete the unloading and collection of the unqualified product, and prevent the unqualified product from flowing into the next process. T2. Unloading of qualified products: If the test result is qualified, the rotating ring 3 continues to rotate, transferring the qualified makeup box 1 to another unloading station to complete the unloading operation of the qualified products. At this point, the complete assembly process of the makeup box 1 is completed.

[0058] The entire assembly process relies on a rotary 3-type precision transmission to enable parallel operation of each workstation and eliminate waiting time at each workstation. Through the deep integration of pre-cleaning, precise positioning and closed-loop detection, the assembly accuracy and production efficiency are greatly improved, while reducing reliance on manual labor and material loss, making it suitable for the small-batch, multi-specification production needs of the beauty industry.

[0059] Working principle: First, after the equipment is powered on and started, the main control panel 2 controls the operation of the drive mechanism, which drives the rotating ring 3 to rotate intermittently and precisely. The detachable mounting bases 5, which are evenly distributed around the rotating ring 3, flow along the predetermined path with the rotating ring 3. The receiving groove 14 and the chamfered structure in the mounting base 5 provide an initial placement carrier for the aluminum base shell 101, avoiding scratches on the workpiece and laying a stable foundation for the entire assembly process.

[0060] Then, the aluminum base shell 101 feeding assembly 6 at the first feeding station transports the aluminum base shell 101 to the receiving groove 14 of the mounting base 5. The aluminum base shell 101 presses down on the linkage 1601 at the bottom of the receiving groove 14 due to its own weight. The linkage 1601 drives the contact rod 1602 of the bionic wrist assembly 16 to move synchronously. The flexible suction cup 1604 at the top of the contact rod 1602 adheres to the side wall of the aluminum base shell 101. The micro displacement sensor detects the positioning data in real time. When the center deviation exceeds 0.3mm, the damping positioning assembly 1603 automatically fine-tunes the retraction force of the contact rod 1602 to pull the aluminum base shell 101 back to the center position, completing the precise initial positioning.

[0061] Subsequently, the rotating ring 3 drives the positioned aluminum base shell 101 to the dust removal component 8 station. The dust removal component 8 performs dust removal treatment on the inside of the aluminum base shell 101, removes impurities from the assembly surface, and prevents dust from affecting the tightness of subsequent snap-fit ​​assembly.

[0062] Next, the rotating ring 3 continues to flow to the second loading station. The intermediate shell 102 loading component 6 transfers the intermediate shell 102 into the aluminum bottom shell 101. The pressure plate component 10 applies uniform pressure so that the intermediate shell 102 and the aluminum bottom shell 101 complete the snap-fit ​​engagement to form a semi-finished product. The bionic wrist component 16 continuously fixes the aluminum bottom shell 101 to prevent the shell from shifting during assembly.

[0063] Subsequently, the semi-finished product arrives at the third feeding station along with the rotating ring 3. The feeding component 6 of the base plate 103 embeds the base plate 103 into the middle shell 102, completing the initial assembly of the core components of the makeup box 1. Each component maintains concentric alignment based on the precise positioning in the early stage.

[0064] Subsequently, the assembled products are transferred to the infrared positioning component 12 station. The infrared positioning component 12 performs a comprehensive inspection of the assembly positions of the base plate 103, the intermediate shell 102, and the aluminum base shell 101 to determine whether there are any unqualified issues such as offset or misalignment.

[0065] Next, if an assembly misalignment is detected, the main control panel 2 controls the pusher component 13 to push the defective product to the defective product unloading area to complete the unloading; if the inspection is qualified, the product continues to flow with the rotating ring 3 to the qualified product unloading area to complete the automatic unloading and collection.

[0066] Finally, the rotating ring 3 continues to rotate intermittently, and the three feeding stations, dust removal, pressing, inspection, and double unloading stations operate synchronously and in parallel, repeating the feeding, positioning, cleaning, assembly, inspection, and sorting processes to achieve continuous and automated assembly of the makeup box 1.

[0067] This equipment utilizes a three-stage rotating loop, biomimetic precision positioning, multi-component integration and collaboration, and dual-station sorting to reduce reliance on manual labor throughout the process. It controls assembly deviations within a reasonable range, significantly improving production efficiency and yield. It is suitable for the small-batch, multi-specification production needs of the beauty industry. At the same time, closed-loop detection effectively prevents the flow of defective products, reducing material loss and rework costs, forming a highly efficient, precise, and stable automated closed-loop assembly system for makeup boxes.

[0068] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An assembly device, characterized in that, It includes a main control console (2), a rotating ring (3), a drive mechanism, at least three loading stations and two unloading stations; the rotating ring (3) is rotatably set above the main control console (2), and multiple mounting bases (5) are evenly distributed around it; the drive mechanism drives the rotating ring (3) to rotate intermittently, causing each mounting base (5) to flow along a predetermined path; the loading stations are respectively equipped with an aluminum bottom shell (101) loading assembly (6), an intermediate shell (102) loading assembly (6) and a bottom plate (103) loading assembly (6); the unloading stations include a qualified product unloading area and a non-qualified product unloading area; the main control console (2) integrates a dust-adhesive assembly (8), a pressure plate assembly (10), an infrared positioning assembly (12) and a pushing assembly (13).

2. The assembly equipment according to claim 1, characterized in that, The mounting base (5) and the rotating ring (3) are connected by a detachable structure. The mounting base (5) is provided with a receiving groove (14) that is adapted to the shape of the aluminum base shell (101). The corner of the receiving groove (14) is provided with a chamfered structure. Bionic brachial limb components (16) are provided on all four side walls.

3. The assembly equipment according to claim 2, characterized in that, The bionic wrist and foot assembly (16) includes a touch rod (1602), a damping positioning assembly (1603), and a linkage (1601). The middle part of the touch rod (1602) is rotatably connected to the limiting groove (15), its bottom is linked with the linkage (1601), and a flexible suction cup (1604) is provided on the top. The damping positioning assembly (1603) includes a micro torsional damper and an elastic preload, which are respectively provided at the hinge shaft of the touch rod (1602).

4. The assembly equipment according to claim 3, characterized in that, The contact rod (1602) adopts a two-section hinge structure. The miniature torsional damper is embedded in the hinge shaft of the two-section contact rod (1602) and the hinge shaft of the contact rod (1602) and the limiting groove (15). The elastic preload is fitted on the outside of the hinge shaft and the preload can be adjusted by the nut.

5. The assembly equipment according to claim 4, characterized in that, The flexible suction cup (1604) has an ultra-thin silicone layer with a thickness of 0.3mm on its surface, and the top end of the contact rod (1602) integrates a micro displacement sensor with a range of 0-10mm and an accuracy of ±0.05mm.

6. The assembly equipment according to claim 3, characterized in that, The linkage (1601) includes a base (160101), a connecting rod (160102), and a buffer assembly. The connecting rod (160102) is slidably disposed in the inner cavity of the base (160101), and a buffer spring is fitted on the outside of the connecting rod (160102). The bottom of the connecting rod (160102) forms a hinged transmission relationship with the bottom of each contact rod (1602) through a movable part (160104).

7. The assembly equipment according to claim 6, characterized in that, The buffer assembly includes a linkage structure consisting of a stainless steel connecting rod (160102) and an aluminum alloy movable part (160104). The two ends of the movable part (160104) are respectively hinged to the connecting rod (160102) and the contact rod (1602), and the number of the movable part (1604) corresponds to the number of contact rods (1602).

8. The assembly equipment according to claim 3, characterized in that, The elastic preload component uses a disc spring with a preload adjustment range of 0.2-0.8N, and the miniature torsional damper has an adjustment range of 0.05-0.3N·m.

9. A cosmetic box assembly process, based on the assembly equipment described in any one of claims 1-8, characterized in that, The process for sequentially transferring and assembling the aluminum bottom shell (101), middle shell (102), and base plate (103) inside the makeup box (1) includes the following steps: S1. The aluminum bottom shell (101) of the makeup box (1) is transported to the receiving groove (14) of the mounting base (5) through the first feeding station, and the aluminum bottom shell (101) is initially positioned by the receiving groove (14). S2. Dust removal treatment is performed inside the aluminum base shell (101) by using the dust removal component (8); S3. The intermediate shell (102) is transferred to the aluminum bottom shell (101) through the second loading station, and pressure is applied by the pressure plate assembly (10) to make the intermediate shell (102) and the aluminum bottom shell (101) snap together to form a semi-finished product; S4. The base plate (103) is transferred to the intermediate shell (102) of the semi-finished product through the third loading station to complete the preliminary assembly; S5. Use an infrared positioning component (12) to detect whether there is any misalignment in the assembly positions of the base plate (103), intermediate shell (102) and aluminum base shell (101); S6. When an assembly position deviation is detected, the product is transferred to the non-conforming product unloading area by the pusher assembly (13); when the inspection is qualified, the product is transferred to the qualified product unloading area.

10. The makeup box assembly process according to claim 9, characterized in that, In step S1, after the aluminum base (101) is placed into the receiving groove (14) of the mounting base (5), the bottom of the receiving groove (14) applies pressure to the linkage (1601), and the linkage (1601) drives the contact rod (1602) to move synchronously. Under the pre-tightening force of the elastic pre-tightening component, the wrist suction cup (1604) at the top of the contact rod (1602) adheres to the outer wall of the aluminum base (101) to achieve the initial centering positioning of the aluminum base (101). At the same time, the miniature displacement sensor at the wrist suction cup (1604) detects the contact position in real time and transmits the data to the embedded single-chip microcomputer control module. If the center deviation of the aluminum base (101) is detected to be >0.3mm, the control module drives the adjustable damping positioning component (1603) to finely adjust the retraction force of the contact rod (1602) and pull the aluminum base (101) back to the center position to ensure positioning accuracy.

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