Automatic valve element assembling and detecting equipment

Abstract

The invention discloses automatic assembling and detecting equipment for a valve element. The automatic assembling and detecting equipment comprises a machine table, a shell feeding assembly, an iron core feeding assembly, a plastic sleeve feeding assembly, a part bearing and transferring assembly, a pair of stamping and airtightness detecting assemblies, a qualified product discharging box and an unqualified product discharging box. The part bearing and transferring assembly comprises a rotating disc, a rotating driver, a material carrying table, a material moving device and a plurality of bearing tables, the material moving device can achieve three-dimensional accurate movement, and the plastic sleeve feeding assembly is provided with a picking device with a track adjusting function in a matched mode; the stamping and air tightness detection assembly completes plastic sleeve press-in, hemming pressing and corresponding air tightness detection. The sorting and conveying unit is matched with an air cylinder through a T-shaped sliding groove and sliding block structure, distribution of qualified products and unqualified products is achieved, full-process automation of valve element assembling, detecting and sorting is achieved, positioning is accurate, operation is stable, universality is high, the valve element mass production efficiency and the product percent of pass are greatly improved, and the valve element assembling and detecting device is suitable for large-scale production of precise valve elements in the fluid control field.

Description

Technical Field

[0001] This invention relates to the field of automated assembly and testing equipment technology, and specifically to an automated valve core assembly and testing equipment. Background Technology

[0002] As a core component in the field of fluid control, the assembly precision and sealing performance of the valve core directly determine the operational stability of the terminal equipment. In the mass production process of valve cores, the precise assembly, stamping and shaping, and airtightness testing of the outer shell, iron core, and plastic sleeve must be completed in sequence. The processes are closely linked and have stringent requirements for positioning accuracy.

[0003] Currently, traditional valve core assembly and testing equipment suffers from several technical defects: First, the processes of feeding, assembly, testing, and sorting are mostly completed using independent mechanisms, making it difficult to coordinate and debug multiple drive modules, which can easily lead to action delays and connection gaps, resulting in low overall operational efficiency. Second, the material transfer devices are mostly single-dimensional or double-dimensional moving structures, which have poor flexibility and are difficult to adapt to the pick-and-place requirements of valve core components of different specifications. In addition, the large gaps between the drive components and moving parts of some devices can easily cause jamming and displacement, affecting the stability of the workpiece posture. Third, the reversing mechanism often relies on additional rotating fixtures or steering platforms, which not only increases the size of the equipment and manufacturing costs, but also easily reduces the valve core assembly accuracy due to the superposition of alignment errors of multiple mechanisms. Fourth, the sorting mechanism has poor guidance, the sorting table switching action is slow to respond, the efficiency of separating qualified and unqualified products is low, and manual participation in the sorting process can easily introduce the risk of misjudgment, making it difficult to adapt to the needs of high-precision mass production.

[0004] In addition, the existing equipment has weak linkage between the lateral movement and lifting action of the picking device, the movement path is fixed, the gripper is prone to collision with surrounding equipment during the transfer process, and the guide structure is mostly an integrated design, which cannot adjust the movement trajectory according to the valve core specifications, resulting in poor versatility.

[0005] Therefore, there is an urgent need to develop an automated assembly and testing equipment that is compact, operates smoothly, is precisely positioned, and is adaptable to the production of valve cores of various specifications, in order to overcome the shortcomings of existing technologies and meet the demand for efficient mass production of precision valve cores. Summary of the Invention

[0006] The present invention aims to solve one of the technical problems existing in the prior art.

[0007] This application provides an automatic valve core assembly and testing device, including a machine base, a housing loading assembly, an iron core loading assembly, a plastic sleeve loading assembly, a component carrying and transferring assembly, a pair of stamping and airtightness testing assemblies, a qualified product unloading box, and a defective product unloading box. The housing loading assembly, iron core loading assembly, and plastic sleeve loading assembly are used to sequentially load the housing, iron core, and plastic sleeve onto the component carrying and transferring assembly. The component carrying and transferring assembly is used to carry the housing, the assembly of the housing and iron core, and the assembly of the housing, iron core, and plastic sleeve, and to drive the above-mentioned workpieces through the pair of stamping and airtightness testing assemblies, and to transfer the defective and qualified products to the defective product unloading box and the qualified product unloading box, respectively. The pair of stamping and airtightness testing assemblies are used to press the plastic sleeve into the housing and to crimp and tighten the housing containing the plastic sleeve.

[0008] Furthermore, the shell loading assembly includes a shell vibratory feeder, a shell conveying track, a shell transfer track, and a shell transfer slider; the shell transfer track is connected to the outer end of the shell conveying track and is perpendicular to the shell conveying track; the shell transfer slider is driven by a cylinder and slidably mounted in the shell transfer track, and a shell transfer groove is provided on the shell transfer slider; the shell vibratory feeder is used to load the shell and transport the shell to the shell conveying track in an orderly manner, and then into the shell transfer groove.

[0009] Furthermore, the core loading assembly includes a core loading tray, core grippers, and a core transfer frame. The core loading tray has a core carrying groove and is movably mounted on the machine platform via a tray linear slide rail, which drives it to approach or move away from the core transfer frame. The core grippers are mounted on the core transfer frame via a pair of mutually perpendicularly connected core linear slide rails and are driven by the pair of core linear slide rails to move between the core loading tray and the component carrying and transfer assembly.

[0010] Furthermore, the stamping and airtightness testing assembly includes a stamping machine and an airtightness detector; both the stamping machine and the airtightness detector include a cylinder and a working head, with the cylinder mounted on the machine base via a bracket; the working head of the stamping machine is a punch, and the working head of the airtightness detector is a hollow shell with an air nozzle.

[0011] Furthermore, the component carrying and transfer assembly includes an assembly conveying unit and a pair of sorting conveying units; the assembly conveying unit is used to carry the outer shell, the assembly of the outer shell and the iron core, and the assembly of the outer shell, the iron core and the plastic sleeve; one stamping machine is set corresponding to the assembly conveying unit to press the plastic sleeve into the outer shell, and the other stamping machine is set corresponding to the other sorting conveying unit to roll and press the outer shell loaded with the plastic sleeve; a pair of air tightness detectors are respectively set corresponding to each stamping machine to detect the air tightness of the workpiece after each stamping process.

[0012] Furthermore, the component carrying and transfer assembly includes a turntable, a rotary driver, a loading platform, a transfer device, and several receiving platforms; the rotary driver is connected to the turntable to drive the turntable to rotate around its own axis; each receiving platform is correspondingly set on the turntable surface and the loading platform surface; the transfer device works in coordination with each receiving platform to transfer the workpiece from the current station receiving platform to the subsequent station receiving platform.

[0013] Furthermore, the sorting and conveying unit includes a loading platform, a transfer device, an inspection platform, a sorting platform, a moving component, a qualified product unloading box, and a non-qualified product unloading box. The inspection platform and the sorting platform are sequentially arranged on the loading platform. The loading platform has a discharge hole corresponding to the sorting platform. The non-qualified product unloading box is located below the discharge hole, and the qualified product unloading box is located below the end of the last sorting platform in a pair of sorting and conveying units. The transfer device is used to transfer workpieces, so that the workpieces are sequentially moved from the inspection platform to the sorting platform, then to the last sorting and conveying unit, and finally enter the qualified product unloading box. The moving component is used to control the sorting platform to block or expose the discharge hole, so that the sorting platform only receives qualified products, and non-qualified products fall into the non-qualified product unloading box through the discharge hole.

[0014] Furthermore, the material transfer device includes a mounting plate, several grippers, a lifting frame, a longitudinal frame, a transverse plate, a mounting platform, and several linear drive components; each linear drive component is used to drive the lifting frame to move up and down relative to the longitudinal frame, the longitudinal frame to move longitudinally relative to the transverse plate, and the transverse plate to move laterally relative to the mounting platform; the mounting plate is fixed on the lifting frame, and each gripper is arranged on the mounting plate at intervals along a straight line.

[0015] Furthermore, it also includes a connecting frame fixed on the loading platform; the connecting frame is provided with a limiting groove, and a limiting slider is fixed on the sorting platform to slide in cooperation with the limiting groove. The cross-section of both the limiting groove and the limiting slider is T-shaped.

[0016] Furthermore, it also includes a mounting frame fixed on the loading platform; the mounting frame extends along the length of the limiting slide groove to the side away from the material drop hole, and the moving component is a cylinder, which is fixed at the outer end of the mounting frame, and the piston rod is connected to the sorting table.

[0017] The beneficial effects of this invention are as follows: 1. The equipment, through the sequential linkage of the outer shell feeding assembly, iron core feeding assembly, and plastic sleeve feeding assembly, in conjunction with the component carrying and transfer assembly, completes the orderly assembly of each component of the valve core; the stamping and airtightness testing assembly realizes the pressing of the plastic sleeve, the edge rolling and tightening, and the airtightness testing of the two processes; the sorting and conveying unit completes the accurate separation of qualified and unqualified products, forming an integrated operation process of "feeding-assembly-stamping and testing-sorting and unloading", which greatly reduces manual intervention and improves production efficiency; 2. The component carrying and transfer assembly adopts a structure of turntable and rotary drive. Two sets of symmetrically distributed receiving platforms on the turntable can complete the workpiece posture adjustment without additional reversing mechanism, ensuring the positioning accuracy of the valve core during the reversing process. The material transfer device achieves precise three-dimensional movement of the gripper through the cooperation of linear drive assembly and slide rail pair. With the addition of reinforcing plate and support truss, the structural rigidity is enhanced, avoiding gripper swaying and deformation under stress, and ensuring the posture stability of multiple workpieces being transferred synchronously. The working head of the stamping and airtightness testing assembly is precisely fitted with the valve core to ensure the stamping and shaping quality and the accuracy of airtightness test data. 3. The picking device that comes with the plastic sleeve feeding assembly can be adjusted by turning the adjusting screw of the adjusting mechanism to drive the slide plate to slide along the slide groove, adjust the guide groove spacing, and thus change the movement trajectory of the guide column. This allows for flexible adjustment of the lifting height and horizontal stroke of the gripper, adapting to the picking needs of different specifications of plastic sleeves without replacing the core components. The gripper adopts a detachable assembly structure, which can be quickly replaced according to the shape of the valve core component, further improving the adaptability of the equipment. 4. The linear actuator of the transfer device uses a cylinder, which has a fast response speed and stable power output. Combined with the frame structure of the longitudinal transfer frame, it balances strength and lightness, reducing the drive load. The lifting frame is equipped with a guide plate and guide rod to effectively avoid skewing and jamming during the lifting process. The sorting table adopts a T-shaped limit slide and limit slider structure to provide precise guidance for the sliding of the sorting table and prevent it from falling off. The cylinder drives the sorting table to quickly switch the state of the discharge hole being blocked / exposed, and the sorting response speed is fast, which is suitable for the needs of high-speed production lines. 5. The modular design of each component of the equipment makes it compact and easy to disassemble and maintain; the procurement cost of common components such as cylinders and slide rails is low and the failure rate is low; the fully automated operation reduces manual operation links, reduces the risk of human error, and lowers the skill threshold for operators. Attached Figure Description

[0018] Figure 1 This is a perspective view of the automatic valve core assembly and testing equipment in the embodiments of this application; Figure 2 This is a perspective view of the housing feeding assembly in an embodiment of this application; Figure 3 This is a perspective view of the iron core feeding assembly in the embodiments of this application; Figure 4 This is a perspective view of the plastic sleeve feeding assembly in an embodiment of this application; Figure 5 This is a perspective view of the plastic sleeve feeding assembly in an embodiment of this application; Figure 6 This is a perspective view of the plastic sleeve feeding assembly in an embodiment of this application; Figure 7 This is a perspective view of the component carrying and transferring assembly in the embodiments of this application; Figure 8This is a perspective view of the component carrying and transferring assembly in the embodiments of this application; Figure 9 This is a perspective view of the component carrying and transferring assembly in the embodiments of this application; Figure 10 This is a perspective view of the component carrying and transferring assembly in the embodiments of this application; Figure 11 This is a perspective view of the component carrying and transferring assembly in an embodiment of this application.

[0019] Figure Labels 1-Machine base, 2-Outer shell feeding assembly, 21-Outer shell vibratory feeder, 22-Outer shell conveying track, 23-Outer shell transfer track, 24-Outer shell transfer slider, 25-Outer shell transfer groove, 3-Iron core feeding assembly, 31-Iron core carrying tray, 32-Iron core gripper, 33-Iron core transfer frame, 34-Iron core bearing groove, 35-Tray linear slide rail, 36-Iron core linear slide rail, 4-Plastic sleeve feeding assembly, 41-Plastic sleeve vibratory feeder, 42-Plastic sleeve conveying track, 43-Plastic sleeve transfer track, 44-Plastic sleeve transfer slider, 45 - Plastic sleeve gripper, 46- Transfer frame, 48- Plastic sleeve transfer groove, 49- Plastic sleeve linear slide rail, 410- Frame, 411- Gripper, 412- Horizontal movement assembly, 413- Lifting assembly, 414- Guide assembly, 415- Drive assembly, 416- Guide column, 417- Slide groove, 418- Slide plate, 419- Guide groove, 420- Adjustment mechanism, 421- Adjustment screw, 422- Locking block, 423- Rotation groove, 424- Vertical section, 425- Horizontal section, 426- Arc section, 427- Flip plate, 428 - Motor, 429- Through slot, 430- Horizontal slide rail, 431- Horizontal slide block, 432- Mounting plate, 433- Lifting slide rail, 434- Lifting slide block, 435- Upper connecting plate, 436- Lower connecting plate, 5- Component carrying and transferring assembly, 51- Assembly conveying unit, 52- Sorting conveying unit, 53- Turntable, 54- Rotary drive, 55- Loading platform, 56- Transfer device, 57- Receiving platform, 58- Inspection platform, 59- Sorting platform, 510- Moving assembly, 511- Drop hole, 512- Mounting plate, 513 - Grippers, 514- Lifting frame, 515- Longitudinal transfer frame, 516- Transverse transfer plate, 517- Mounting platform, 518- Linear drive assembly, 519- Slide rail pair, 520- Reinforcing plate, 521- Support truss, 522- Connecting frame, 523- Limiting slide groove, 524- Limiting slider, 525- Mounting frame, 6- Stamping and airtightness testing assembly, 61- Stamping machine, 62- Airtightness detector, 63- Working head, 64- Bracket, 65- Punch, 66- Hollow shell with air nozzle, 7- Qualified product unloading box, 8- Unqualified product unloading box. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0021] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0022] The automatic valve core assembly and testing equipment provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0023] Example 1 This application provides an automatic valve core assembly and testing device, including a machine base 1, a shell loading assembly 2, an iron core loading assembly 3, a plastic sleeve loading assembly 4, a component carrying and transferring assembly 5, a pair of stamping and airtightness testing assemblies 6, a qualified product unloading box 7, and a defective product unloading box 8. The shell loading assembly 2, the iron core loading assembly 3, and the plastic sleeve loading assembly 4 are respectively used to load the shell, the iron core, and the plastic sleeve sequentially onto the component carrying and transferring assembly 5. The component carrying and transferring assembly 5 is used to carry the shell, the assembly of the shell and the iron core, and the assembly of the shell, the iron core, and the plastic sleeve, and to drive the above workpieces through the pair of stamping and airtightness testing assemblies 6, and to transfer the defective and qualified products to the defective product unloading box 8 and the qualified product unloading box 7, respectively. The pair of stamping and airtightness testing assemblies 6 are respectively used to press the plastic sleeve into the shell and to crimp and tighten the shell loaded with the plastic sleeve.

[0024] like Figure 1 As shown, due to the above structure, the outer shell feeding assembly 2, the iron core feeding assembly 3, and the plastic sleeve feeding assembly 4 are triggered sequentially according to the preset timing of valve core assembly: the outer shell feeding assembly 2 first accurately transports the valve core outer shell to the receiving position of the component carrying and transferring assembly 5; after the valve core outer shell is positioned, the iron core feeding assembly 3 starts and moves the valve core iron core into the valve core outer shell, completing the initial assembly of the outer shell and the iron core; then the plastic sleeve feeding assembly 4 starts and moves the plastic sleeve to the designated assembly position of the outer shell-iron core assembly.

[0025] After receiving the workpieces at each stage, the component carrying and transfer assembly 5 moves the valve core shell, the shell-iron core assembly, and the shell-iron core-plastic suit assembly in sequence according to a preset rhythm: First, the shell-iron core-plastic suit assembly is transferred to the working station of the first stamping and airtightness testing assembly 6. After the stamping machine of this assembly completes the process of pressing the plastic sleeve into the shell, the matching airtightness detector immediately starts the airtightness test, and the test signal is fed back to the control system in real time; the qualified assembly is transferred to the working station of the second stamping and airtightness testing assembly 6. The stamping machine of this assembly completes the edge rolling and pressing process, and the matching airtightness detector simultaneously starts the secondary airtightness test; any assembly that fails the test in any process will be directly transferred by the component carrying and transfer assembly 5 to the non-conforming product unloading box 8.

[0026] The valve core, which has passed two stamping processes and two airtightness tests, is transferred by the component carrying and transfer assembly 5 to the qualified product unloading box 7, forming a fully automated closed loop of "outer shell loading → iron core loading → plastic sleeve loading → stamping test → sorting and unloading". The actions of each component are precisely linked through the control system, without process interruption, which greatly improves the overall efficiency of valve core assembly and product qualification rate.

[0027] Example 2 In this embodiment, in addition to the structural features of the aforementioned embodiments, the outer shell feeding assembly 2 includes an outer shell vibratory feeder 21, an outer shell conveying track 22, an outer shell transfer track 23, and an outer shell transfer slider 24; the outer shell transfer track 23 is connected to the outer end of the outer shell conveying track 22 and is perpendicular to the outer shell conveying track 22; the outer shell transfer slider 24 is driven by a cylinder and slidably assembled in the outer shell transfer track 23, and an outer shell transfer groove 25 is provided on the outer shell transfer slider 24; the outer shell vibratory feeder 21 is used to load the outer shell and to transport the outer shell to the outer shell conveying track 22 in an orderly manner, and then into the outer shell transfer groove 25.

[0028] like Figures 1 to 2 As shown, due to the above structure, the action logic of the outer shell feeding component 2 is triggered by the "acceptance position idle signal" sent by the component carrying and transferring component 5, so as to realize the orderly sorting, precise conveying and positioning of the outer shell, and adapt to the automated cycle requirements of valve core assembly: After the outer shell vibrating plate 21 is started, it sorts the randomly piled valve core outer shells inside through vibration, so that all valve core outer shells enter the outer shell conveying track 22 in the same direction (opening upwards) in sequence. The inner wall of the outer shell conveying track 22 is provided with a guide protrusion to prevent the valve core outer shell from tilting or shifting during the conveying process, and to ensure that the outer shell conveying posture is consistent.

[0029] When the outer casing is transported to the outer end of the outer casing transport track 22, the cylinder receives the instruction from the control system and drives the outer casing transfer slider 24 to slide along the outer casing transfer track 23 until the outer casing transfer groove 25 on the outer casing transfer slider 24 is precisely aligned with the end of the outer casing transport track 22. At this time, the outer casing in the outer casing transport track 22 smoothly enters the outer casing transfer groove 25 under the pushing action of the subsequent outer casing. The size of the outer casing transfer groove 25 is adapted to the shape of the valve core outer casing, and performs secondary positioning constraint on the entering outer casing.

[0030] After the outer shell transfer slot 25 receives the outer shell, the cylinder drives the outer shell transfer slider 24 to slide in the opposite direction along the outer shell transfer track 23 until the outer shell transfer slot 25 is precisely aligned with the receiving position of the component carrier transfer assembly 5. At this time, the outer shell transfer slider 24 triggers the limit sensor and sends an "outer shell in position signal" to the control system of the component carrier transfer assembly 5. After the component carrier transfer assembly 5 completes the receiving preparation, the component carrier transfer assembly 5 actively removes the outer shell from the outer shell transfer slot 25. The component carrier transfer assembly 5 extends into the outer shell transfer slot 25 through its own gripping structure, accurately grips the outer shell, and smoothly transfers it to its receiving position. After the outer shell removal action is completed, the outer shell transfer slider 24 resets and waits for the receiving and transfer of the next outer shell.

[0031] Throughout the entire shell loading process, the movements of the shell vibrating plate 21, the shell conveying track 22, and the shell transfer slider 24 are precisely linked through the control system. The sliding speed of the shell transfer slider 24 matches the conveying speed of the shell conveying track 22, avoiding shell accumulation or conveying gaps. At the same time, the precise alignment of the shell transfer groove 25 with the receiving position of the component carrying transfer assembly 5 ensures that the valve core shell can fall smoothly into the receiving position and complete positioning, providing a precise assembly benchmark for the subsequent iron core loading assembly 3 iron core assembly process.

[0032] Example 3 In this embodiment, in addition to the structural features of the aforementioned embodiments, the core loading assembly 3 includes a core loading tray 31, core grippers 32, and a core transfer frame 33. The core loading tray 31 has a core carrying groove 34 and is movably mounted on the machine base 1 via a tray linear slide rail 35, and is driven by the tray linear slide rail 35 to approach or move away from the core transfer frame 33. The core grippers 32 are mounted on the core transfer frame 33 via a pair of mutually perpendicularly connected core linear slide rails 36, and are driven by the pair of core linear slide rails 36 to move between the core loading tray 31 and the component carrying and transfer assembly 5.

[0033] like Figure 3As shown, due to the above structure, the iron core bearing groove 34 on the iron core loading tray 31 provides pre-positioning constraint for the valve core iron core, preventing the valve core iron core from tipping over or shifting during the movement of the iron core loading tray 31; the tray linear slide rail 35 drives the iron core loading tray 31 to move at a constant speed, and when the iron core loading tray 31 moves to the gripping position, the limit switch is triggered, the iron core loading tray 31 stops moving and sends the iron core loading tray 31 arrival signal to the control system of the iron core gripper 32.

[0034] The pair of mutually perpendicular linear guides 36 for the iron core gripper 32 operate in a fixed sequence of "horizontal movement → vertical gripping → horizontal transfer → vertical assembly": the horizontal linear guide 36 first moves the iron core gripper 32 to directly above the valve core, and the vertical linear guide 36 drives the iron core gripper 32 to descend and grip the valve core; after the gripping action is completed, the vertical linear guide 36 rises to reset, and the horizontal linear guide 36 moves the iron core gripper 32 to the valve core housing position of the component carrying and transferring assembly 5; after the valve core housing is positioned, the vertical linear guide 36 drives the iron core gripper 32 to descend, placing the valve core into the valve core housing, and the iron core gripper 32 releases and resets.

[0035] The movement of the iron core gripper 32 is precisely matched with the positioning state of the valve core shell of the component carrying and transferring assembly 5: the iron core gripper 32 only performs the unloading action when the valve core shell on the component carrying and transferring assembly 5 is in a static positioning state, ensuring the assembly alignment accuracy of the valve core iron core and the valve core shell, and adapting to the production requirements of high-precision valve core assembly.

[0036] Example 4 In this embodiment, in addition to the structural features of the aforementioned embodiments, the plastic sleeve feeding assembly 4 includes a plastic sleeve vibratory feeder 41, a plastic sleeve conveying track 42, a plastic sleeve transfer track 43, a plastic sleeve transfer slider 44, a frame 46, grippers 48, a traversing assembly 49, a lifting assembly 410, a guide assembly 411, and a drive assembly 412; the plastic sleeve transfer track 43 is connected to the outer end of the plastic sleeve conveying track 42 and is perpendicular to the plastic sleeve conveying track 42; the plastic sleeve transfer slider 44 is driven by a cylinder and slidably mounted within the plastic sleeve transfer track 43. The plastic sleeve transfer slider 44 is provided with a plastic sleeve transfer groove 45; the plastic sleeve vibrating plate 41 is used to load the plastic sleeve and to transport the plastic sleeve to the plastic sleeve conveying track 42 in an orderly manner, and then into the plastic sleeve transfer groove 45. The horizontal moving component 49 is horizontally slidably installed on the frame 46, the lifting component 410 is vertically slidably installed on the horizontal moving component 49, the gripper 48 is assembled on the lower end of the lifting component 410, and the drive component 412 links the lifting component 410 and the horizontal moving component 49 through the guide component 411, so that the gripper 48 rises in the middle section of the path from the picking end to the assembly end and falls at both ends.

[0037] In this embodiment of the application, the guide assembly 411 includes a guide post 413, a slide 414, a pair of slide plates 415, and a pair of guide grooves 416. The slide 414 is formed on the frame 46. The pair of slide plates 415 are slidably installed in the slide 414 through the adjustment mechanism 417. The pair of guide grooves 416 are symmetrically formed on the pair of slide plates 415, with adjacent sections higher than non-adjacent ends. The guide post 413 is fixed on the lifting assembly 410 and slides in the pair of guide grooves 416.

[0038] In this embodiment of the application, the adjustment mechanism 417 includes an adjustment screw 418 and a pair of locking blocks 419. The pair of locking blocks 419 are fixed in the slide groove 414, forming a rotating groove 420 between them. One end of the adjustment screw 418 is rotatably installed in the rotating groove 420, and the other end is connected to the corresponding slide plate 415 through a screw hole.

[0039] In this embodiment of the application, the guide groove 416 includes a vertical section 421, a horizontal section 422 and an arc section 423. The vertical section 421 and the horizontal section 422 are perpendicular to each other and are connected to each other through the arc section 423.

[0040] In this embodiment of the application, the drive assembly 412 includes a flip plate 424, a motor 425 and a through slot 426. The through slot 426 is formed on the flip plate 424 and slides in cooperation with the guide post 413. The output shaft of the motor 425 is fixedly connected to the end of the flip plate 424 away from the through slot 426.

[0041] In this embodiment of the application, the transverse component 49 includes a transverse slide rail 427 and a transverse slider 428. The transverse slide rail 427 is fixed on the frame 46, and the transverse slider 428 is slidably mounted on the transverse slide rail 427 and connected to the lifting component 410.

[0042] In this embodiment of the application, a pair of transverse slide rails 427 and transverse sliders 428 are provided, and a mounting plate 429 for mounting the lifting assembly 410 is fixed on the pair of transverse sliders 428.

[0043] In this embodiment of the application, the lifting assembly 410 includes a lifting slide rail 430, a lifting slider 431, an upper connecting plate 432 and a lower connecting plate 433. The lifting slider 431 is fixed on the transverse component 49, and the lifting slide rail 430 is slidably installed in the lifting slider 431. The upper end is connected to the guide component 411 through the upper connecting plate 432, and the lower end is equipped with a gripper 48 through the lower connecting plate 433.

[0044] like Figures 4 to 6As shown, due to the above structure, the operation logic of the plastic sleeve feeding component 4 closely revolves around the coordinated cooperation of its components, and is divided into two continuous stages: "plastic sleeve sorting and conveying" and "plastic sleeve precise picking and assembly". The entire process is adapted to the automated rhythm of valve core assembly to ensure the assembly accuracy of plastic sleeves: The first stage is plastic sleeve sorting and conveying. After the plastic sleeve vibrating plate 41 is started, it sorts the randomly piled plastic sleeves inside in an orderly manner through high-frequency vibration, so that all plastic sleeves enter the plastic sleeve conveying track 42 in the same direction. The inner wall of the plastic sleeve conveying track 42 is provided with anti-deviation protrusions, which can effectively prevent the plastic sleeves from tilting or misaligning during the conveying process, ensuring that the plastic sleeves are conveyed in a consistent posture and the conveying is smooth.

[0045] When the plastic sleeve is conveyed to the outer end of the plastic sleeve conveying track 42, the cylinder receives the instruction from the control system and drives the plastic sleeve transfer slider 44 to slide smoothly along the plastic sleeve transfer track 43 until the plastic sleeve transfer groove 45 on the plastic sleeve transfer slider 44 is precisely aligned with the end of the plastic sleeve conveying track 42. At this time, the plastic sleeve in the plastic sleeve conveying track 42 falls smoothly into the plastic sleeve transfer groove 45 under the continuous pushing action of the subsequent plastic sleeves. The inner cavity size of the plastic sleeve transfer groove 45 is precisely matched with the outer contour of the plastic sleeve, and the incoming plastic sleeve is subjected to secondary positioning constraint to ensure that the plastic sleeve is in a precise posture to be grasped. Then, driven by the cylinder, the plastic sleeve transfer slider 44 slides along the plastic sleeve transfer track 43 to the preset pickup position and triggers the limit sensor to send a "plastic sleeve in position and ready to be grasped" signal to the drive component 412. The second stage is the precise picking and assembly of plastic sleeves. After receiving the signal, the drive component 412 of the plastic sleeve feeding component 4 starts immediately. The motor 425 drives the flip plate 424 to rotate at a constant speed around its output shaft. The through groove 426 on the flip plate 424 and the guide post 413 on the lifting component 410 form a sliding fit. Then, through the synchronous linkage of the guide component 411 with the transverse component 49 and the lifting component 410, the three-dimensional motion control of the gripper 48 is realized.

[0046] The guide groove 416 of the guide assembly 411 adopts a three-section structure consisting of a vertical section 421, a horizontal section 422, and an arc section 423, which can precisely control the movement trajectory of the gripper 48: when the guide post 413 slides along the vertical section 421 of the guide groove 416, the lifting assembly 410 operates independently, driving the gripper 48 to descend vertically until the gripper 48 reaches the gripping position of the plastic sleeve transfer groove 45, and the gripper 48 closes to complete the gripping action of the plastic sleeve; when the guide post 413 slides along the arc section 423 of the guide groove 416, the lifting assembly 410 and the lateral movement assembly 49 work together, and the gripper 48 moves horizontally while rising vertically. The movement effectively avoids surrounding components such as the plastic sleeve conveying track 42 and the plastic sleeve transfer slider 44, preventing interference. When the guide column 413 slides along the horizontal section 422 of the guide groove 416, the transverse component 49 moves independently, driving the gripper 48 to move horizontally to the preset assembly position of the outer shell-iron core assembly of the component carrying transfer component 5. Subsequently, the guide column 413 slides in the opposite direction along the guide groove 416, passing through the arc section 423 and the vertical section 421 in sequence. The gripper 48 descends vertically, accurately placing the plastic sleeve into the designated assembly position of the outer shell-iron core assembly. The gripper 48 releases and resets, completing a single plastic sleeve pickup and assembly operation.

[0047] If different sizes of plastic sleeves need to be adapted, there is no need to replace the core component of the plastic sleeve feeding assembly 4. Adaptation can be completed simply by adjusting the mechanism 417: rotate the adjusting screw 418 of the adjusting mechanism 417. The adjusting screw 418 rotates smoothly in the rotating groove 420 formed by a pair of locking blocks 419. Through the screw hole transmission, the corresponding slide plate 415 slides along the slide groove 414 of the frame 46, thereby adjusting the distance between the pair of slide plates 415, changing the movement trajectory of the guide column 413 in the guide groove 416, thereby adjusting the gripping height and horizontal conveying distance of the gripper 48 to adapt to the gripping and assembly requirements of plastic sleeves of different sizes. Meanwhile, the transverse component 49 adopts a cooperative structure of a pair of transverse slide rails 427 and a pair of transverse sliders 428. The mounting plate 429 fixed on the pair of transverse sliders 428 provides a stable installation base for the lifting component 410. The lifting component 410 adopts a cooperative structure of a pair of lifting slide rails 430 and a pair of lifting sliders 431. The upper end is connected to the guide post 413 of the guide component 411 through the upper connecting plate 432, and the lower end is assembled with the gripper 48 through the lower connecting plate 433. The double symmetrical cooperative structure can effectively ensure that the gripper 48 has no tilting or jamming during horizontal transfer and vertical lifting, further improving the assembly and positioning accuracy of the plastic sleeve and meeting the production requirements of high-precision valve core assembly.

[0048] Example 5 In this embodiment, in addition to the structural features of the aforementioned embodiments, the stamping and airtightness detection component 6 includes a stamping machine 61 and an airtightness detector 62; both the stamping machine 61 and the airtightness detector 62 include a cylinder and a working head 63, and the cylinder is mounted on the machine base 1 via a bracket 64; the working head 63 of the stamping machine 61 is a punch 65, and the working head 63 of the airtightness detector 62 is a hollow shell 66 with an air nozzle.

[0049] In this embodiment of the application, the component carrying and transferring assembly 5 includes an assembly conveying unit 51 and a pair of sorting conveying units 52; the assembly conveying unit 51 is used to carry the outer shell, the assembly of the outer shell and the iron core, and the assembly of the outer shell, the iron core and the plastic sleeve; one stamping machine 61 is provided corresponding to the assembly conveying unit 51 for pressing the plastic sleeve into the outer shell, and the other stamping machine 61 is provided corresponding to the other sorting conveying unit 52 for crimping and pressing the outer shell loaded with the plastic sleeve; a pair of airtightness detectors 62 are respectively provided corresponding to each stamping machine 61 for detecting the airtightness of the workpiece after each stamping process.

[0050] like Figures 7 to 11 As shown, due to the above structure, the two processes of stamping and airtightness testing component 6 are linked in the order of "pressing and testing first, then edge rolling testing": when the component carrier transfer component 5 transfers the shell-iron core-plastic sleeve assembly to the first stamping station, the cylinder of the stamping machine 61 drives the punch 65 to descend and press the plastic sleeve into the preset position of the shell; at the same time as the punch 65 resets, the cylinder of the airtightness detector 62 drives the working head 63 of the hollow shell 66 with air nozzle to stick to the workpiece and start the airtightness test. The test data is uploaded to the control system in real time. The defective products are marked and directly transferred by the component carrier transfer component 5 to the defective product unloading box 8.

[0051] The qualified outer shell-iron core-plastic assembly is transferred to the second stamping station by the component carrier transfer assembly 5. The stamping machine 61 at this station drives the punch 65 to complete the edge rolling and pressing process. Subsequently, the matching air tightness detector 62 starts the secondary air tightness test. The workpiece that passes the secondary test is marked as a finished product, and the unqualified products are also diverted in real time.

[0052] The assembly conveying unit 51 and the sorting conveying unit 52 of the component carrying and transferring component 5 are seamlessly connected through signal interaction: the assembly conveying unit 51 is responsible for transferring the assemblies at each stage to the stamping and testing station, and the sorting conveying unit 52 receives the workpieces after stamping and testing, and transfers the finished products and defective products to the qualified product unloading box 7 and the defective product unloading box 8 respectively according to the marking signal of the control system, so as to realize the integrated automated operation of stamping, testing and sorting.

[0053] Example 6 In this embodiment, in addition to the structural features of the aforementioned embodiments, the component carrying and transferring assembly 5 includes a turntable 53, a rotary driver 54, a loading platform 55, a transfer device 56, and a plurality of receiving platforms 57; the rotary driver 54 is driven to connect with the turntable 53 to drive the turntable 53 to rotate around its own axis; each receiving platform 57 is correspondingly arranged on the surface of the turntable 53 and the surface of the loading platform 55; the transfer device 56 cooperates with each receiving platform 57 to transfer the workpiece from the current station receiving platform 57 to the subsequent station receiving platform 57.

[0054] In this embodiment of the application, the sorting and conveying unit 52 includes a loading platform 55, a transfer device 56, a detection platform 58, a sorting platform 59, and a moving component 510. 、 The qualified product unloading box 7 and the unqualified product unloading box 8 are arranged in sequence on the loading platform 55. The loading platform 55 has a discharge hole 511 corresponding to the sorting platform 59. The unqualified product unloading box 8 is located below the discharge hole 511. The qualified product unloading box 7 is located below the end of the last sorting platform 59 in a pair of sorting and conveying units 52. The transfer device 56 is used to transfer the workpiece, so that the workpiece is moved from the loading platform 58 to the sorting platform 59 in sequence, and then to the rear sorting and conveying unit 52, and finally enters the qualified product unloading box 7. The moving component 510 is used to control the sorting platform 59 to block or expose the discharge hole 511, so that the sorting platform 59 only receives qualified products, and unqualified products fall into the unqualified product unloading box 8 through the discharge hole 511.

[0055] In this embodiment of the application, the material transfer device 56 includes a mounting plate 512, a plurality of grippers 513, a lifting frame 514, a longitudinal transfer frame 515, a transverse transfer plate 516, a mounting platform 517, and a plurality of linear drive components 518; each linear drive component 518 is used to drive the lifting frame 514 to lift relative to the longitudinal transfer frame 515, the longitudinal transfer frame 515 to move longitudinally relative to the transverse transfer plate 516, and the transverse transfer plate 516 to move laterally relative to the mounting platform 517; the mounting plate 512 is fixed on the lifting frame 514, and each gripper 513 is arranged at intervals along a straight line on the mounting plate 512.

[0056] like Figure 7 and Figure 10 , Figure 11As shown, due to the above structure, the operation logic of the component carrying and transferring assembly 5 is based on "rotation and reversal of turntable 53 + three-dimensional transfer of material transfer device 56": turntable 53 rotates around its own axis under the drive of rotary driver 54, and the two sets of symmetrical receiving platforms 57 on turntable 53 rotate synchronously with turntable 53; when one set of receiving platforms 57 rotates to precisely align with the receiving position of the loading platform 55, the material transfer device 56 is started, and the three sets of cylinders of linear drive assembly 518 drive the lifting frame 514, longitudinal transfer frame 515 and transverse transfer plate 516 to move along the corresponding slide rail pair 519 respectively, driving the gripper 513 to achieve precise three-dimensional spatial movement, and accurately grabbing the workpiece on the loading platform 55 to the receiving platform 57 of turntable 53.

[0057] After the turntable 53 rotates to a preset angle, the workpiece is reversed. Another set of receiving platforms 57 rotates to align with the receiving position of the unloading platform 55. The transfer device 56 is started again to transfer the reversed workpiece to the unloading platform 55, realizing a continuous flow operation of workpiece loading, reversing, and unloading.

[0058] The sorting and conveying unit 52 and the component carrying and transferring assembly 5 are linked in real time via signals: the transfer device 56 transfers the stamped and inspected workpiece to the inspection table 58, the inspection device completes the inspection and sends a qualified / unqualified signal; if it is a qualified product, the cylinder of the moving assembly 510 drives the sorting table 59 to move to the position of blocking the drop hole 511, the transfer device 56 transfers the workpiece to the sorting table 59, and then to the subsequent sorting and conveying unit 52, and finally enters the qualified product unloading box 7; if it is an unqualified product, the cylinder of the moving assembly 510 drives the sorting table 59 to move to the position of exposing the drop hole 511, and the workpiece falls directly into the unqualified product unloading box 8 through the drop hole 511.

[0059] The linear drive component 518 of the transfer device 56, through the cooperation of the slide rail pair 519 and the cylinder, realizes the three-dimensional precise positioning of the gripper 513. Several grippers 513 on the mounting plate 512 can simultaneously grab multiple workpieces, greatly improving the workpiece transfer efficiency.

[0060] Example 7 In this embodiment, in addition to the structural features of the aforementioned embodiments, the sorting and conveying unit 52 includes a loading platform 55, a transfer device 56, a detection platform 58, a sorting platform 59, a moving component 510, a qualified product unloading box 7, and a defective product unloading box 8. The detection platform 58 and the sorting platform 59 are sequentially arranged on the loading platform 55. The loading platform 55 has a discharge hole 511 corresponding to the sorting platform 59. The defective product unloading box 8 is located below the discharge hole 511, and the qualified product unloading box 8 is located below the discharge hole 511. 7 is located below the end of the last sorting table 59 in a pair of sorting and conveying units 52; the transfer device 56 is used to transfer the workpiece, so that the workpiece is moved from the inspection table 58 to the sorting table 59 in sequence, and then to the rear sorting and conveying unit 52, and finally enters the qualified product unloading box 7; the moving component 510 is used to control the sorting table 59 to block or expose the unloading hole 511, so that the sorting table 59 only accepts qualified products, and unqualified products fall into the unqualified product unloading box 8 through the unqualified product unloading hole 511.

[0061] In this embodiment of the application, the material transfer device 56 includes a mounting plate 512, a plurality of grippers 513, a lifting frame 514, a longitudinal transfer frame 515, a transverse transfer plate 516, a mounting platform 517, and a plurality of linear drive components 518; each linear drive component 518 is used to drive the lifting frame 514 to lift relative to the longitudinal transfer frame 515, the longitudinal transfer frame 515 to move longitudinally relative to the transverse transfer plate 516, and the transverse transfer plate 516 to move laterally relative to the mounting platform 517; the mounting plate 512 is fixed on the lifting frame 514, and each gripper 513 is arranged at intervals along a straight line on the mounting plate 512.

[0062] It also includes a reinforcing plate 520 and a supporting truss 521. The reinforcing plate 520 connects the mounting plate 512 and the lifting frame 514. The top of the supporting truss 521 slides with the end of the transverse plate 516 away from the mounting platform 517 via a slide rail pair 519.

[0063] like Figure 8 Figure 11 As shown, due to the above structure, the operation logic of the transfer device 56 is based on "synchronous gripping by several grippers 513 + three-dimensional precise transfer by linear drive assembly 518": When the transfer device 56 receives the transfer signal from the control system, the linear drive assembly 518 that drives the transverse plate 516 is started first. The cylinder drives the transverse plate 516 to move along the slide rail pair 519 of the mounting platform 517, so that several grippers 513 move to the horizontal alignment position with the workpiece; then the linear drive assembly 518 that drives the longitudinal frame 515 is started, and the cylinder drives the longitudinal frame 515 to move along the slide rail pair 519 of the transverse plate 516, completing the longitudinal alignment of several grippers 513; finally, the linear drive assembly 518 that drives the lifting frame 514 is started, and the cylinder drives the lifting frame 514 to descend along the slide rail pair 519 of the longitudinal frame 515, so that several grippers 513 on the mounting plate 512 simultaneously grip multiple workpieces.

[0064] After the workpiece is gripped, the three sets of linear drive components 518 reverse their movement to reset, driving several grippers 513 to move the workpiece to the target station. Several reinforcing plates 520 between the mounting plate 512 and the lifting frame 514 enhance the connection rigidity and prevent the mounting plate 512 from deforming due to force after the grippers 513 grip the workpiece. The top of the support truss 521 slides with the end of the transverse plate 516 away from the mounting platform 517 through the slide rail pair 519, providing auxiliary support for the transverse plate 516, suppressing the deflection deformation of the transverse plate 516 caused by excessive cantilever length, and ensuring the accuracy of the movement trajectory of the grippers 513.

[0065] Throughout the transfer process, the motion signals of the three sets of linear drive components 518 interact in real time, precisely controlling the movement path and start / stop timing of several grippers 513, adapting to the distance and height requirements of different workstations, and realizing synchronous and precise transfer of multiple workpieces.

[0066] Example 8 In this embodiment, in addition to the structural features of the aforementioned embodiments, a connecting frame 522 is also included, which is fixed on the loading platform 55. A limiting groove 523 is provided on the connecting frame 522, and a limiting slider 524 that slides with the limiting groove 523 is fixed on the sorting platform 59. The cross-sections of the limiting groove 523 and the limiting slider 524 are both T-shaped.

[0067] In this embodiment of the application, a mounting frame 525 is also fixed on the loading platform 55. The mounting frame 525 extends along the length direction of the limiting slide groove 523 to the side away from the discharge hole 511. The moving component 510 is a cylinder, which is fixed at the outer end of the mounting frame 525, and the piston rod is connected to the sorting table 59.

[0068] like Figures 8 to 11 As shown, due to the above structure, the operation logic of the sorting table 59 is based on "the qualified / unqualified signal of the detection device as the trigger + the cylinder drive to quickly switch the state": when the detection device determines that the workpiece is qualified, the control system sends a signal to block the material drop hole 511 to the cylinder of the moving component 510; after receiving the signal, the cylinder extends the piston rod and pushes the sorting table 59 to slide along the limit slide groove 523 on the connecting frame 522. The T-shaped limit slider 524 on the sorting table 59 slides synchronously along the T-shaped limit slide groove 523 on the connecting frame 522 until the sorting table 59 completely blocks the material drop hole 511 of the loading platform 55. At this time, the workpiece can be smoothly placed on the sorting table 59 and transferred to the subsequent work station by the transfer device 56.

[0069] When the detection device determines that the workpiece is defective, the control system sends a signal to expose the discharge hole 511. The piston rod of the cylinder retracts, pulling the sorting table 59 to slide in the opposite direction along the limit slide groove 523 of the connecting frame 522 until the discharge hole 511 of the loading table 55 is fully exposed. The workpiece falls directly into the defective product unloading box 8 through the discharge hole 511.

[0070] The mating structure of the T-shaped limiting groove 523 of the connecting frame 522 and the T-shaped limiting slider 524 of the sorting table 59 provides precise guidance for the sliding of the sorting table 59, and prevents the sorting table 59 from detaching from the connecting frame 522 during the sliding process through the upper and lower limiting effect of the T-shaped structure; the mounting frame 525 extends along the length of the limiting groove 523 of the connecting frame 522, providing a stable mounting base for the cylinder, ensuring the linear transmission of the cylinder driving force, further improving the sliding stability and response speed of the sorting table 59, and adapting to the usage requirements of the high-speed valve core assembly and testing production line.

[0071] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0072] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An automatic valve core assembly and testing device, characterized in that, It includes a machine base, a shell loading assembly, an iron core loading assembly, a plastic sleeve loading assembly, a component carrying and transferring assembly, a pair of stamping and airtightness testing assemblies, a qualified product unloading box, and a non-qualified product unloading box; the shell loading assembly, the iron core loading assembly, and the plastic sleeve loading assembly are respectively used to load the shell, the iron core, and the plastic sleeve into the component carrying and transferring assembly in sequence; The component carrying and transfer assembly is used to carry the outer shell, the assembly of the outer shell and the iron core, and the assembly of the outer shell, the iron core and the plastic sleeve, and to drive the above workpieces through the pair of stamping and airtightness detection assemblies, and to transfer the defective products and qualified products to the defective product unloading box and the qualified product unloading box respectively; the pair of stamping and airtightness detection assemblies are used to press the plastic sleeve into the outer shell, and to curl and tighten the outer shell containing the plastic sleeve.

2. The automatic valve core assembly and testing equipment according to claim 1, characterized in that, The shell loading assembly includes a shell vibratory feeder, a shell conveying track, a shell transfer track, and a shell transfer slider; the shell transfer track is connected to the outer end of the shell conveying track and is perpendicular to the shell conveying track; the shell transfer slider is driven by a cylinder and slidably mounted in the shell transfer track, and the shell transfer slider has a shell transfer groove; the shell vibratory feeder is used to load the shell and transport the shell to the shell conveying track in an orderly manner, and then into the shell transfer groove.

3. The automatic valve core assembly and testing equipment according to claim 1, characterized in that, The core loading assembly includes a core loading tray, core grippers, and a core transfer frame. The core loading tray has a core carrying groove and is movably mounted on the machine platform via a tray linear slide rail, which drives it to approach or move away from the core transfer frame. The core grippers are mounted on the core transfer frame via a pair of mutually perpendicularly connected core linear slide rails and are driven by the pair of core linear slide rails to move between the core loading tray and the core loading and transfer assembly.

4. The automatic valve core assembly and testing equipment according to claim 1, characterized in that, The stamping and airtightness testing assembly includes a stamping machine and an airtightness detector; both the stamping machine and the airtightness detector include a cylinder and a working head, and the cylinder is mounted on the machine base by a bracket; the working head of the stamping machine is a punch, and the working head of the airtightness detector is a hollow shell with an air nozzle.

5. The automatic valve core assembly and testing equipment according to claim 4, characterized in that, The component carrying and transfer assembly includes an assembly conveying unit and a pair of sorting conveying units; the assembly conveying unit is used to carry the outer shell, the assembly of the outer shell and the iron core, and the assembly of the outer shell, the iron core and the plastic sleeve; one stamping machine is set corresponding to the assembly conveying unit to press the plastic sleeve into the outer shell, and the other stamping machine is set corresponding to the other sorting conveying unit to roll and press the outer shell loaded with the plastic sleeve; the pair of air tightness detectors are respectively set to each stamping machine to detect the air tightness of the workpiece after each stamping process.

6. The automatic valve core assembly and testing equipment according to claim 5, characterized in that, The component carrying and transferring assembly includes a turntable, a rotary driver, a loading platform, a transfer device, and several receiving platforms; the rotary driver is connected to the turntable to drive the turntable to rotate around its own axis; each receiving platform is correspondingly arranged on the turntable surface and the loading platform surface; the transfer device works in cooperation with each receiving platform to transfer the workpiece from the current station receiving platform to the subsequent station receiving platform.

7. The automatic valve core assembly and testing equipment according to claim 5, characterized in that, The sorting and conveying unit includes a loading platform, a transfer device, a detection platform, a sorting platform, a moving component, a qualified product unloading box, and a non-qualified product unloading box. The detection platform and the sorting platform are sequentially arranged on the loading platform. The loading platform has a discharge hole corresponding to the sorting platform. The non-qualified product unloading box is located below the discharge hole, and the qualified product unloading box is located below the end of the last sorting platform in a pair of sorting and conveying units. The transfer device is used to transfer workpieces, so that the workpieces are sequentially moved from the detection platform to the sorting platform, then to the last sorting and conveying unit, and finally enter the qualified product unloading box. The moving component is used to control the sorting platform to block or expose the discharge hole, so that the sorting platform only receives qualified products, and non-qualified products fall into the non-qualified product unloading box through the discharge hole.

8. An automatic valve core assembly and testing device according to claim 6 or 7, characterized in that, The material transfer device includes a mounting plate, several grippers, a lifting frame, a longitudinal frame, a transverse plate, a mounting platform, and several linear drive components; each of the linear drive components is used to drive the lifting frame to move up and down relative to the longitudinal frame, the longitudinal frame to move longitudinally relative to the transverse plate, and the transverse plate to move laterally relative to the mounting platform; the mounting plate is fixed on the lifting frame, and each gripper is arranged on the mounting plate at intervals along a straight line.

9. The automatic valve core assembly and testing equipment according to claim 7, characterized in that, It also includes a connecting frame fixed on the loading platform; the connecting frame has a limiting groove, and the sorting platform is fixed with a limiting slider that slides in cooperation with the limiting groove. The limiting groove and the limiting slider both have a T-shaped cross section.

10. The automatic valve core assembly and testing equipment according to claim 9, characterized in that, It also includes a mounting frame fixed on the loading platform; the mounting frame extends along the length of the limiting slide groove to the side away from the discharge hole, the moving component is a cylinder, the cylinder is fixed at the outer end of the mounting frame, and the piston rod is connected to the sorting table.

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