Gas valve assembly and testing production line

Abstract

This invention discloses a valve assembly and testing production line, belonging to the field of valve assembly. The production line includes assembly equipment and testing equipment arranged sequentially along the production direction. The assembly equipment includes a first turntable and a first feeding track. The first feeding track is located on one side of the turntable. Along the conveying direction of the first feeding track, a coil frame assembly station, a moving iron core assembly station, and a yoke assembly station are arranged sequentially. Along the circumference of the first turntable, a stationary iron core assembly station, an O-ring seal assembly station, and a spring assembly station are arranged sequentially. The turntable is located between the moving iron core assembly station and the yoke assembly station. This valve assembly and testing production line significantly improves production efficiency.

Description

Technical Field

[0001] This invention belongs to the field of air valve assembly, and particularly relates to an air valve assembly and testing production line. Background Technology

[0002] A solenoid valve is an electromagnetically controlled actuator industrial device. A solenoid valve generally consists of a solenoid valve body and a coil. When the coil is energized, the solenoid valve will be attracted to that position. The movement of the solenoid valve can be used to control parameters such as the direction, velocity, and flow rate of the medium. Solenoid valves can achieve the desired control by working with different circuits. Because they can meet the control precision requirements and the flexibility of control adjustment, they are widely used in various electrical appliances for controlling fluids.

[0003] The stationary iron core, O-ring seal, and spring are important components of a solenoid valve. Currently, solenoid valves are assembled manually. This traditional assembly method is inefficient, has high labor costs, and is time-consuming and labor-intensive. It cannot meet the requirements of mass production of solenoid valves and restricts the scale of production. Summary of the Invention

[0004] The purpose of this invention is to provide a valve assembly, testing, and production method to overcome at least one of the aforementioned defects in the prior art.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] The valve assembly and testing production line provided by the present invention includes assembly equipment and testing equipment arranged sequentially along the production direction. The assembly equipment includes a first turntable and a first feeding track. The first feeding track is located on one side of the first turntable. A coil frame assembly station, a moving iron core assembly station, and a yoke assembly station are arranged sequentially along the conveying direction of the first feeding track. A stationary iron core assembly station, an O-ring seal assembly station, and a spring assembly station are arranged sequentially along the circumference of the first turntable. The turntable is located between the moving iron core assembly station and the yoke assembly station.

[0007] Preferably, a first pusher is fixed to the fixed end of the first turntable, and a plurality of flipping components are distributed at intervals along the circumference of the rotating end of the first turntable. Each flipping component is provided with a stationary iron core placement seat. A second pusher is provided below the first pusher. The second pusher is used to push the flipping component that rotates to its upper part to move and perform the flipping operation. The pushing end of the first pusher is set towards the first feeding track. The first pusher is used to push the stationary iron core placement seat that rotates to its front to move towards the coil frame and perform the stationary iron core installation operation.

[0008] Preferably, the flipping assembly includes a first mounting base, a rotating shaft, a gear, a rack, a first limiting post, a rotating arm, a buffer, a first connecting member, a second connecting member, and a first spring. The first mounting base is fixed to the rotating end of the first turntable, the rotating shaft is rotatably connected to the first mounting base, the gear is fixed to the rotating shaft, the rack is slidably connected to the first mounting base, the rack meshes with the gear, and the bottom end of the rack passes through the first mounting base and the rotating end of the first turntable.

[0009] Preferably, the first mounting base includes a base, a concave seat, a first bearing, a bearing housing, and a vertical plate. Both the concave seat and the vertical plate are fixed to the top of the base. The vertical plate is located behind the concave seat. The rear end of the concave seat has a first sliding groove for the rack to slide. The vertical plate blocks one opening of the first sliding groove. The first bearing is disposed in the concave seat, and the gear is located inside the concave seat. The bearing housing is fixed to the top of the base and is positioned opposite to the concave seat. One end of a rotating shaft is inserted into the bearing housing, and the other end of the rotating shaft passes through the concave seat. After passing through the concave seat, a rotating arm is fixed to one end of the rotating shaft. The rotating arm has a first perpendicular first... The first arm and the second arm, and the upper and lower sides of the upright plate are both fixed with first limiting posts. In the initial state, the stationary iron core placement seat is vertically upward, and the first arm abuts against the first limiting post located on the upper side. After flipping, the stationary iron core placement seat is horizontally forward, and the second arm abuts against the first limiting post located on the lower side. The upper and lower sides of the upright plate are both fixed with buffer members, which are located between the first limiting posts on the upper and lower sides. The rear end of the rack is fixed with a first connecting member, and the rear end of the first mounting seat is fixed with a second connecting member. One end of the first spring is fixed to the first connecting member, and the other end of the first spring is fixed to the second connecting member.

[0010] Preferably, the stationary iron core placement seat includes a fixed seat, a second spring, a stop block, a limiting block, and a mounting post. The fixed seat is fixedly connected to the rotating shaft. The fixed seat has a first through hole through which the mounting post passes and is slidably fitted. One end of the mounting post has a first receiving groove for accommodating the stationary iron core. The other end of the mounting post passes through the first through hole and is fixed with a stop block. A second spring is fixed between the stop block and the fixed seat. The second spring is arranged around the mounting post. A limiting block is fixed on the side of the mounting post near the first receiving groove. The limiting block and the second spring are located on opposite sides of the fixed seat, respectively.

[0011] Preferably, the O-ring assembly station includes a first frame, a first vibratory feeder, a conveying track, a gripper assembly, and a transverse slide block, a longitudinal slide block, and a material picking assembly disposed on the first frame. The longitudinal slide block is fixed to the moving end of the transverse slide block, and the moving end of the longitudinal slide block is fixed with a gripper assembly. The gripper assembly is located above the material picking assembly, and a conveying track is disposed between the material picking assembly and the first vibratory feeder.

[0012] Preferably, the material handling assembly has a first through groove through which an O-ring conveyed by the conveyor rail passes, a second receiving groove for accommodating the O-ring, a first cylinder, a slide rail, and a first slider. The second receiving groove has a first position and a second position. When the second receiving groove is in the first position, it corresponds to the first through groove; when the second receiving groove is in the second position, it corresponds to the gripping end of the gripper assembly. The first cylinder and the slide rail are both fixed to the first frame. The first slider is slidably connected to the slide rail, and the first slider is fixedly connected to the first cylinder. The first through groove is located on the side wall of the slide rail near the conveyor rail and communicates with the first groove of the slide rail. The second receiving groove is located on the first slider and has an opening penetrating the side wall of the first slider near the first through groove.

[0013] Preferably, the first slider has a second through hole located below and communicating with the second receiving groove. The diameter of the second through hole is larger than the inner diameter of the O-ring and smaller than the outer diameter of the O-ring. A baffle is fixed to the top of the slide rail, blocking the upper opening of the first through groove. A stop is fixed to the first frame, abutting against the end of the slide rail away from the first cylinder. A groove is formed on the rear side wall of the baffle. When the second receiving groove is in the first position, the groove is above the second receiving groove. A first photoelectric sensor is provided on the top of the slide rail, with its test end located above the groove. A first photoelectric sensor is provided on the slide rail, with its test end facing the first position of the second receiving groove. A second through groove is provided on the side wall of the slide rail near the conveying track, communicating with the first slide groove of the slide rail. A second photoelectric sensor is provided on the slide rail, with its test end extending into the second through groove and facing the second position of the second receiving groove.

[0014] Preferably, the gripper assembly includes a second cylinder, a horizontal plate, a first optical axis, a first linear bearing, a first mounting plate, a four-jaw cylinder, a first push plate, a limiting plate, and clamping parts. The second cylinder is fixed to one side wall of the first mounting plate, and the horizontal plate is fixed to the telescopic end of the second cylinder. The first optical axis is fixed to both opposite sides of the horizontal plate. The first linear bearing is provided on both opposite sides of the first mounting plate. One end of the first optical axis passes through the first linear bearing and is fixed to the first push plate. The four-jaw cylinder is fixed to the other side wall of the first mounting plate. Several clamping parts are fixed to the moving end of the four-jaw cylinder. A third through hole is opened in the middle of the first push plate, and a part of the clamping parts passes through the third through hole. Each jaw of the four-jaw cylinder is fixed with a clamping part. The limiting plate is fixed to the bottom of the four-jaw cylinder, and the limiting plate has limiting grooves that are the same number as the number of clamping parts.

[0015] Preferably, an abutment groove is provided on the inner side of the bottom end of the clamp.

[0016] Preferably, the spring assembly station includes a second frame, a second vibratory feeder, a conveying pipe, an intermittent feeding assembly, a transferring assembly, and a first pick-and-place assembly. The intermittent feeding assembly, the transferring assembly, and the first pick-and-place assembly are all fixed to the second frame. The intermittent feeding assembly is connected to the second vibratory feeder through the conveying pipe. The transferring assembly has a first position and a second position. When the transferring assembly is in the first position, the transferring end of the transferring assembly is located below the intermittent feeding assembly. When the transferring assembly is in the second position, the transferring end of the transferring assembly is located below the first pick-and-place assembly.

[0017] Preferably, the intermittent material feeding assembly includes a lifting component, a material feeding block, a pressure rod, a second mounting base, and a third cylinder. The lifting component is fixed to the second frame, and the material feeding block is fixed to the lifting end of the lifting component. The material feeding block has a material feeding hole and a fourth through hole inside. The material feeding hole is connected to the conveying pipe, and the fourth through hole is connected to the lower part of the material feeding hole. A second mounting base is fixed to one side wall of the material feeding block, and a third cylinder is fixed to the second mounting base. A pressure rod is fixed to the telescopic end of the third cylinder. The pressure rod can pass through the second mounting base and extend to the fourth through hole, pressing the spring that feeds the material to the position corresponding to the fourth through hole into the material feeding hole.

[0018] Preferably, the lifting component includes a fourth cylinder, a first connecting seat, a second slider, and a first guide rail. The fourth cylinder and the second slider are both fixed to the second frame. The top of the fourth cylinder is fixed to the first connecting seat. The first guide rail is fixed to the first connecting seat and slides with the second slider. The dropping block is fixed to the first guide rail. The pressing end of the pressing rod has an arc-shaped surface.

[0019] Preferably, the material transfer assembly includes a third mounting base, a transverse component, a material distribution block, a mounting block, a return spring, a slider, a magnet, and a guide push plate. The third mounting base is fixed to the second frame, the transverse component and the guide push plate are both fixed to the third mounting base, the material distribution block is fixed to the moving end of the transverse component, the mounting block is fixed to one side of the material distribution block, one end of the return spring is fixed to the mounting block, the material distribution block has an interconnected sliding hole and a first receiving hole inside, the first receiving hole is located above the sliding hole and penetrates the upper side wall of the material distribution block, the slider is slidably connected to the sliding hole, the other end of the return spring is connected to or abuts against one end of the slider, the slider has a second receiving hole inside, a magnet is embedded in the second receiving hole, the other end of the slider extends out of the sliding hole and abuts against the guide push plate.

[0020] Preferably, the guide push plate includes a first plane, a second plane, and an inclined plane. The first plane and the second plane are connected by the inclined plane. When the slide body is below the intermittent feeding component, the slide body abuts against the first plane. When the slide body is below the first picking and dispensing component, the slide body abuts against the second plane. The second plane is set closer to the dispensing block than the first plane.

[0021] Preferably, the transverse component includes a fifth cylinder, a second guide rail, a third slider, and a second connecting seat. The fifth cylinder and the third slider are both fixed to the third mounting seat. The second guide rail is slidably connected to the third slider. The telescopic end of the fifth cylinder is fixedly connected to the second guide rail through the second connecting seat. The material distribution block is fixed to the second guide rail. A roller is rotatably connected to one end of the slide body near the guide push plate.

[0022] Preferably, the first material handling assembly includes a sixth cylinder, a third connecting seat, a third guide rail, a fourth slider, a seventh cylinder, a material handling block, and a material handling needle. The sixth cylinder and the fourth slider are both fixed to the second frame. The third guide rail is slidably connected to the fourth slider. The sixth cylinder and the third guide rail are connected by the third connecting seat. The seventh cylinder and the material handling block are fixed on the third guide rail. The material handling block is located below the seventh cylinder. The bottom end of the seventh cylinder is fixed with a material handling needle. The material handling block has a through hole for the material handling needle to pass through.

[0023] Preferably, the testing equipment includes a second turntable, a resistance testing station, a withstand voltage testing station, a flow rate testing station, and an airtightness testing device. The resistance testing station, the withstand voltage testing station, and the flow rate testing station are distributed circumferentially along the second turntable. A transfer mechanism is provided on one side of the second turntable, and the transfer mechanism delivers the product to the airtightness testing device for airtightness testing.

[0024] Preferably, the airtightness testing device includes a machine base and a second material handling assembly, a second feeding track, and an air valve airtightness testing assembly disposed on the machine base. The second feeding track is disposed between the second material handling assembly and the air valve airtightness testing assembly. The second material handling assembly has multiple material handling ends, all of which are located above the second feeding track. The second material handling assembly has an adjusting member capable of changing the spacing between the multiple material handling ends. The air valve airtightness testing assembly has a material transfer member corresponding to the material handling ends, and the material transfer direction of each material transfer member is perpendicular to the feeding direction of the second feeding track.

[0025] Preferably, the second material handling assembly includes a first transverse cylinder, a first fixed plate, a slide bar, a second fixed plate, a first fixed block, a first lifting cylinder, an adjusting component, and a material handling end. The first fixed plate is fixed to the end of the first transverse cylinder facing the airtightness test assembly. A slide bar is fixed to the side wall of the first fixed plate away from the first transverse cylinder. A first lifting cylinder is fixed to the side wall of the first fixed plate near the first transverse cylinder. A first fixed block is fixed to the top of the second fixed plate. The top of the first lifting cylinder is fixedly connected to the first fixed block. A second sliding groove is provided on the side wall of the second fixed plate near the first fixed plate. The second sliding groove slides in cooperation with the slide bar. The adjusting component is disposed on the second fixed plate, and the material handling end is disposed on the adjusting component.

[0026] Preferably, the adjusting component includes a fourth guide rail, a fifth slider, a sixth slider, a second lifting cylinder, a hinge shaft, a connecting rod, a sixth guide rail, and a seventh slider. The fourth guide rail is fixed to the side wall of the second fixed plate away from the first fixed plate. The fifth slider is slidably connected to the fourth guide rail. The fifth slider is fixed to the fifth guide rail. The sixth slider is slidably connected to the fifth guide rail. The sixth guide rail is fixed to the side wall of the second fixed plate away from the first fixed plate. The sixth guide rail is located below the fifth guide rail. Several seventh sliders are slidably connected to the sixth guide rail. Each seventh slider is fixed with a material picking and placing end. The sixth slider and the fifth guide rail are both fixed with a hinge shaft. Each hinge shaft is hinged with two connecting rods. The two connecting rods are respectively hinged to two material picking and placing ends. Two adjacent connecting rods are hinged together to the same material picking and placing end. The second lifting cylinder is fixed to the first fixed block. The bottom end of the second lifting cylinder is fixedly connected to the fifth guide rail.

[0027] Preferably, the material handling end includes a fourth mounting base, a third lifting cylinder, a connecting block, and an electromagnet. The fourth mounting base is fixed to the seventh slider, the third lifting cylinder is fixed to the upper part of the fourth mounting base, the bottom end of the third lifting cylinder is fixed to the connecting block, the bottom end of the connecting block is fixed to the electromagnet, and the electromagnet passes through the bottom of the fourth mounting base.

[0028] Preferably, the bottom end of the fourth mounting base has a clamping part, the hinge shaft of the fifth guide rail is located in the middle of the fifth guide rail, there are two sixth sliders, located on the left and right sides of the hinge shaft in the middle of the fifth guide rail respectively, and there are four seventh sliders.

[0029] Preferably, a second fixing block is fixed to the top of the second fixing plate, and a second limiting post is fixed to the second fixing block. The second limiting post is located above the fifth guide rail. The airtightness test assembly includes a mounting platform, a material transfer component, a second optical axis, a second linear bearing, a second mounting plate, a third mounting plate, a fourth lifting cylinder, a pressure block, and a second transverse cylinder. The mounting platform is fixed to the machine base. The material transfer component is located on the top of the mounting platform. A second optical axis is fixed to the top of the mounting platform. A second mounting plate is fixed to the top of the second optical axis. A fourth lifting cylinder is fixed to the top of the second mounting plate. The third mounting plate is sleeved on the second optical axis and can slide up and down along the second optical axis. A second linear bearing is fixed to the top of the third mounting plate, and the second optical axis passes through the second linear bearing. Several second transverse cylinders and a pressure block are fixed to the bottom of the third mounting plate. The telescopic end of each second transverse cylinder is connected to a test air tube of an airtightness tester. The pressure block is located above the test air tube. The bottom end of the fourth lifting cylinder is fixedly connected to the top of the third mounting plate.

[0030] Preferably, the material transfer component includes a material transfer cylinder, a seventh guide rail, an eighth slider, a placement block, a third fixing block, and a third limiting post. The material transfer cylinder and the seventh guide rail are both fixed to the top of the mounting platform. The top of the seventh guide rail is slidably connected to the eighth slider. The telescopic end of the material transfer cylinder is fixedly connected to the eighth slider. The top of the eighth slider is fixed with a placement block. The tops of the mounting platforms at both ends of the seventh guide rail are fixed with third fixing blocks, and the third fixing blocks are fixed with third limiting posts.

[0031] The beneficial effects of this invention are as follows:

[0032] 1. The design incorporates an intermittently rotating first turntable, along with circumferentially distributed stationary iron core assembly stations, O-ring assembly stations, and spring assembly stations. This, combined with the coil frame assembly station, moving iron core assembly station, and yoke assembly station arranged sequentially along the straight conveying direction of the first feeding track, creates a complementary system where each step is carried out in an orderly manner. Different parts are assembled along their respective operating directions before being integrated into a single assembly, significantly improving production efficiency.

[0033] 2. By combining several stationary iron core placement seats with the first turntable, the stationary iron core can be installed on the coil frame and processed at other workstations simultaneously. It can also achieve rapid flipping and installation of the stationary iron core, resulting in high installation efficiency.

[0034] 3. The O-rings are transported to the material handling component via the conveying track by the second vibrating plate. The material handling component switches between two states to handle the O-rings one by one.

[0035] 4. By adopting vertical material dropping, combined with the intermittent material dropping component, the first material transfer component, and the first material picking and placing component, the springs can be efficiently sorted, picked up, and installed, resulting in high spring installation efficiency.

[0036] 5. It can efficiently perform airtightness testing on air valves, and can transfer multiple products at one time to perform airtightness testing on multiple products simultaneously. Attached Figure Description

[0037] Figure 1 This is a top view of the assembly equipment of the present invention.

[0038] Figure 2 This is a three-dimensional structural schematic diagram of the assembly equipment of the present invention.

[0039] Figure 3 This is a top view of the airtightness testing device of the present invention.

[0040] Figure 4 This is a top view schematic diagram of the first turntable and its structure according to the present invention.

[0041] Figure 5This is a front view structural schematic diagram of the flipping component and the static iron core placement seat of the present invention.

[0042] Figure 6 This is a three-dimensional structural diagram of the flipping component and the iron core placement seat of the present invention (static iron core in horizontal state).

[0043] Figure 7 This is a three-dimensional structural diagram of the flipping component and the iron core placement seat of the present invention (with the stationary iron core in a vertical state).

[0044] Figure 8 This is a three-dimensional structural diagram of the rotating shaft, fixing seat, and first through hole of the present invention.

[0045] Figure 9 This is a top view of the mounting column and the first receiving groove of the present invention (mounting column in vertical position).

[0046] Figure 10 This is a three-dimensional structural diagram of the O-ring assembly station of the present invention.

[0047] Figure 11 This is a three-dimensional structural diagram of the material handling component of the present invention.

[0048] Figure 12 This is a three-dimensional structural schematic diagram of the first slider of the present invention.

[0049] Figure 13 This is a three-dimensional structural diagram of the gripper assembly of the present invention (with the O-ring in the state).

[0050] Figure 14 This is a three-dimensional structural diagram of the gripper assembly of the present invention (in the state of pushing the O-ring seal).

[0051] Figure 15 This is a three-dimensional structural diagram of the first push plate of the present invention.

[0052] Figure 16 This is a bottom view of the gripper assembly of the present invention (gripping part in a centripetal state).

[0053] Figure 17 This is the present invention. Figure 16 A partial cross-sectional view of the structure along the AA direction.

[0054] Figure 18 This is a bottom view of the gripper assembly of the present invention (with the gripper part extended outwards).

[0055] Figure 19 This is a schematic diagram of the fit between the clamp and the O-ring of the present invention (clamp in a centripetal state).

[0056] Figure 20 This is a schematic diagram of the fit between the clamp and the O-ring of the present invention (the clamp is in the outward-opening state).

[0057] Figure 21 This is a schematic diagram of the spring assembly station of the present invention.

[0058] Figure 22 This is a partial three-dimensional structural schematic diagram of the spring assembly station of the present invention.

[0059] Figure 23 This is a top view of the material dropping block, pressure rod, and second mounting base of the present invention.

[0060] Figure 24 This is the present invention. Figure 23 Schematic diagram of the cross-sectional structure along the BB direction.

[0061] Figure 25 This is a three-dimensional structural diagram of the material dropping block and the pressure rod of the present invention.

[0062] Figure 26 This is a partial top view of the material transfer component of the present invention (in the first position).

[0063] Figure 27 This is a partial top view of the material transfer assembly of the present invention (in the second position).

[0064] Figure 28 This is a top view schematic diagram of the material feeding block, magnet, and slider of the present invention.

[0065] Figure 29 This is the present invention. Figure 28 Schematic diagram of the cross-sectional structure along the CC direction.

[0066] Figure 30 This is a three-dimensional structural diagram of the first material handling component of the present invention.

[0067] Figure 31 This is a three-dimensional structural schematic diagram of the airtightness testing device of the present invention (excluding the machine tool).

[0068] Figure 32 This is a three-dimensional structural diagram of the second material handling component of the present invention.

[0069] Figure 33 This is a partial rear view of the structure of the second material handling assembly of the present invention.

[0070] Figure 34 This is a partial three-dimensional structural schematic diagram of the second material handling component of the present invention from a first perspective.

[0071] Figure 35 This is a partial three-dimensional structural schematic diagram of the second material handling component of the present invention from a first perspective.

[0072] Figure 36This is a three-dimensional structural schematic diagram of the airtightness testing component for the air valve of the present invention.

[0073] Figure 37 This is a schematic diagram of the left side of the airtightness testing component for the air valve of the present invention.

[0074] Figure 38 This is a partial three-dimensional structural schematic diagram of the airtightness testing component for the air valve of the present invention.

[0075] Figure 39 This is a schematic diagram of the state of the yoke of the electromagnet adsorption coil frame of the present invention.

[0076] The labels in the attached diagram are as follows: 1-First turntable, 2-First feeding track, 3-Coil frame assembly station, 4-Moving iron core assembly station, 5-Yoke assembly station, 6-Stationary iron core assembly station, 7-O-ring seal assembly station, 8-Spring assembly station, 9-Air tightness testing device, 14-First pusher, 15-Tilting assembly, 16-Stationary iron core placement seat, 17-Second pusher, 151-First mounting seat, 152-Rotating shaft, 153-Gear, 154-Rack, 155-First limiting post, 156-Rotating arm, 157-Buffer, 158-First connecting piece, 159-Second connecting piece, 1510-First spring, 1511-Base, 1512-Concave seat, 1513-First bearing, 1514 - Bearing housing, 1515- Vertical plate, 1516- First slide groove, 1561- First arm, 1562- Second arm, 161- Fixed seat, 162- Second spring, 163- Stop block, 164- Limiting block, 165- Mounting column, 166- First through hole, 167- First receiving groove, 71- First frame, 72- First vibratory feeder, 73- Conveying track, 74- Gripper assembly, 75- Horizontal slide block, 76- Longitudinal slide block, 771- First through groove, 772- Second receiving groove, 773- First cylinder, 774- Slide rail, 775- First slider, 776- Second through hole, 777- Baffle, 778- Stop, 779- Groove, 77- Material handling assembly, 7710- First photoelectric sensor, 7711- Second through slot, 7712-Second photoelectric sensor, 741-Second cylinder, 742-Horizontal plate, 743-First optical axis, 744-First linear bearing, 745-First mounting plate, 746-Four-jaw cylinder, 747-First push plate, 748-Limiting plate, 749-Clamping part, 7410-Third through hole, 7411-Abutting groove, 7412-Limiting groove, 81-Second frame, 82-Second vibratory feeder, 83-Conveying pipe, 84-Intermittent feeding assembly, 85-Transfer assembly, 86-First pick-and-place assembly, 841-Lifting component, 842-Feeding block, 843-Pressure rod, 844-Second mounting base, 845-Third cylinder, 846-Feeding hole, 847-Fourth through hole, 8411-Fourth cylinder 8412-First connecting seat, 8413-Second slider, 8414-First guide rail, 8431-Arc-shaped surface, 851-Third mounting seat, 852-Transverse component, 853-Separating block, 854-Mounting block, 855-Reset spring, 856-Slider, 857-Magnet, 858-Guide push plate, 859-Sliding hole, 8510-First receiving hole, 8511-Second receiving hole, 8581-First plane, 8582-Second plane, 8583-Inclined surface, 8521-Fifth cylinder, 8522-Second guide rail, 8523-Third slider, 8524-Second connecting seat, 8512-Roller, 861-Sixth cylinder, 862-Third connecting seat, 863-Third guide rail, 864-Fourth slider865-Seventh cylinder, 866-Discharge block, 867-Pick-up needle, 868-Perforation, 91-Second pick-up / discharge assembly, 92-Air valve airtightness test assembly, 93-Machine base, 94-Second feeding track, 911-First transverse cylinder, 912-First fixed plate, 913-Sliding bar, 914-Second fixed plate, 915-First fixed block, 916-First lifting cylinder, 917-Adjusting component, 918-Pick-up / discharge end, 919-Second slide groove, 9171-Fourth guide rail, 9172-Fifth slider, 9173-Fifth guide rail, 9174-Sixth slider, 9175-Second lifting cylinder, 9176-Hinge shaft, 9177-Connecting rod, 9178-Sixth guide rail, 91 79-Seventh slider, 9181-Fourth mounting base, 9182-Third lifting cylinder, 9183-Connecting block, 9184-Electromagnet, 9185-Clamping part, 91710-Second fixing block, 91711-Second limiting post, 921-Mounting platform, 922-Material transfer component, 923-Second optical axis, 924-Second linear bearing, 925-Second mounting plate, 926-Third mounting plate, 927-Fourth lifting cylinder, 928-Pressure block, 929-Second transverse cylinder, 9210-Test air pipe, 9221-Material transfer cylinder, 9222-Seventh guide rail, 9223-Eighth slider, 9224-Placement block, 9225-Third fixing block, 9226-Third limiting post. Detailed Implementation

[0077] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0078] Contents not described in detail in this specification are prior art known to those skilled in the art. In the description of this invention, it should be understood that terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0079] like Figures 1 to 39As shown, the valve assembly and testing production line provided in this embodiment includes assembly equipment and testing equipment arranged sequentially along the production direction. The assembly equipment includes a first turntable 1 and a first feeding track 2. The first feeding track 2 is located on one side of the first turntable 1. A coil frame assembly station 3, a moving iron core assembly station 4, and a yoke assembly station 5 are arranged sequentially along the conveying direction of the first feeding track 2. A stationary iron core assembly station 6, an O-ring seal assembly station 7, and a spring assembly station 8 are arranged sequentially along the circumference of the first turntable 1. The turntable is located between the moving iron core assembly station 4 and the yoke assembly station 5. A first pushing member 14 is fixed to the fixed end of the first turntable 1. Several flipping components 15 are distributed circumferentially along the rotating end of the first turntable 1. Each flipping component 15 is equipped with a stationary iron core placement seat 16. A second pushing member 17 is located below the first pushing member 14. The second pushing member 17 is used to push the flipping component 15 rotating above it to move and perform the flipping operation. The pushing end of the first pushing member 14 faces the first feeding track 2. The first pushing member 14 is used to push the stationary iron core placement seat 16 rotating in front of it to move towards the coil frame to perform the stationary iron core installation operation. In this embodiment, a spring force measuring mechanism is fixed to the fixed end of the first turntable 1 between the first pushing member 14 and the spring assembly station 8. A defective product station is provided between the first pushing member 14 and the stationary iron core assembly station 6.

[0080] The coil frame is assembled at coil frame assembly station 3, and then conveyed from left to right by the first feeding track 2. The coil frame is conveyed to the moving iron core assembly station 4, where the moving iron core is assembled onto the coil frame. The stationary iron core is assembled at the stationary iron core assembly station 6. The assembled stationary iron core is placed on the stationary iron core placement seat 16 and conveyed by the first turntable 1 to the O-ring assembly station 7, where the O-ring is assembled onto the stationary iron core. Then, it is conveyed by the first turntable 1 to the spring assembly station 8, where the spring is assembled onto the stationary iron core. Finally, it is conveyed by the first turntable 1 to the spring force measuring mechanism to test whether the spring force meets the standard. A stationary iron core with sufficient spring force is conveyed by the first turntable 1 to the front of the first pusher 14. Then, the second pusher 17 pushes the current flipping assembly 15 to rotate 90°, causing the stationary iron core placement seat 16 to rotate 90°, turning the originally vertical stationary iron core into a horizontal position. The first pusher 14 then pushes it forward, causing the stationary iron core placement seat 16 to move towards the coil frame with the assembled moving iron core, thus installing the stationary iron core into the coil frame. Stationary iron cores with insufficient spring force are conveyed by the first turntable 1 to the defective product station for removal into the defective product box. After the stationary iron core is installed into the coil frame, the coil frame is conveyed via the first feeding track 2 to the yoke assembly station 5 for yoke assembly. The assembled product then enters the testing equipment for resistance, withstand voltage, flow rate, and airtightness tests.

[0081] This achieves automated assembly and testing of the air valves, significantly improving production efficiency. The integrated design of assembly and testing eliminates the need for separation, simplifying the overall process and greatly enhancing testing efficiency. The intermittently rotating first turntable 1, combined with the circumferentially distributed static iron core assembly station 6, O-ring seal assembly station 7, and spring assembly station 8, along with the coil frame assembly station 3, moving iron core assembly station 4, and yoke assembly station 5 sequentially arranged along the linear conveying direction of the first feeding track 2, complements each other. Each step proceeds smoothly, with different parts assembled along their respective operating directions before being integrated into a single assembly, greatly improving production efficiency.

[0082] By combining several stationary iron core placement seats 16 with the first turntable 1, the stationary iron core can be installed on the coil frame and processed by other stations simultaneously. The stationary iron core can also be quickly flipped and installed, resulting in high installation efficiency.

[0083] The flipping assembly 15 includes a first mounting base 151, a rotating shaft 152, a gear 153, a rack 154, a first limiting post 155, a rotating arm 156, a buffer 157, a first connecting member 158, a second connecting member 159, and a first spring 1510. The first mounting base 151 is fixed to the rotating end of the first turntable 1. The rotating shaft 152 is rotatably connected to the first mounting base 151. The gear 153 is fixed to the rotating shaft 152. The rack 154 is slidably connected to the first mounting base 151 and meshes with the gear 153. The bottom end of the rack 154 passes through the first mounting base 151 and the rotating end of the first turntable 1. In this embodiment, both the first connecting member 158 and the second connecting member 159 are bolts. The stationary iron core placement seat 16 includes a fixed seat 161, a second spring 162, a stop block 163, a limiting block 164, and a mounting post 165. The fixed seat 161 is fixedly connected to the rotating shaft 152. The fixed seat 161 has a first through hole 166 through which the mounting post 165 passes and is slidably engaged. One end of the mounting post 165 has a first receiving groove 167 for accommodating the stationary iron core. The other end of the mounting post 165 passes through the first through hole 166 and is fixed with the stop block 163. The second spring 162 is fixed between the stop block 163 and the fixed seat 161. The second spring 162 is arranged around the mounting post 165. The limiting block 164 is fixed on the side of the mounting post 165 near the first receiving groove 167. The limiting block 164 and the second spring 162 are located on opposite sides of the fixed seat 161, respectively.Specifically, the first mounting base 151 includes a base 1511, a concave seat 1512, a first bearing 1513, a bearing seat 1514, and a vertical plate 1515. The concave seat 1512 and the vertical plate 1515 are both fixed to the top of the base 1511. The vertical plate 1515 is located behind the concave seat 1512. The rear end of the concave seat 1512 has a first sliding groove 1516 for the rack 154 to slide. The vertical plate 1515 blocks one side opening of the first sliding groove 1516. The first bearing 1513 is disposed in the concave seat 1512, and the gear 153 is located inside the concave seat 1512. The bearing seat 1514 is fixed to the top of the base 1511 and is positioned opposite to the concave seat 1512. One end of the rotating shaft 152 is inserted into the bearing seat 1514, and the other end of the rotating shaft 152 passes through the concave seat 1512. After passing through the concave seat 1512, the rotating shaft 152 is fixed... A rotating arm 156 is fixed, which has a first arm 1561 and a second arm 1562 that are perpendicular to each other. The upper and lower sides of the upright plate 1515 are fixed with first limiting posts 155. In the initial state, the stationary iron core placement seat 16 is vertically upward, and the first arm 1561 abuts against the first limiting post 155 located on the upper side. After the rotation is completed, the stationary iron core placement seat 16 is horizontally forward, and the second arm 1562 abuts against the first limiting post 155 located on the lower side. The upper and lower sides of the upright plate 1515 are fixed with buffer members 157, which are located between the first limiting posts 155 on the upper and lower sides. The rear end of the rack 154 is fixed with a first connecting member 158, and the rear end of the first mounting seat 151 is fixed with a second connecting member 159. One end of the first spring 1510 is fixed to the first connecting member 158, and the other end of the first spring 1510 is fixed to the second connecting member 159.

[0084] In the initial position, mounting post 165 faces upwards, and the stationary iron core is vertically installed in the receiving slot. During the flipping operation, the second pusher 17 pushes the rack 154 upwards, causing the gear 153 to rotate. Simultaneously, the first spring 1510 extends, and the gear 153 drives the rotating shaft 152 to rotate, causing the stationary iron core placement seat 16 to rotate forward until it reaches a horizontal position. Then, the first pusher 14 pushes the mounting post 165 forward, causing the mounting post 165 to move the stationary iron core towards the coil frame and insert it into the coil frame. At this time, the second spring 162 extends. Because the outer ring of the stationary iron core is equipped with an O-ring seal, after the outer diameter of the O-ring seal makes soft contact with the inner hole of the plastic frame, the stationary iron core is difficult to remove and will not follow the mounting post 165 out of the coil frame. After the stationary iron core is installed in the coil frame, the first pusher 14 retracts back to its original position, and the mounting post 165 retracts back to its original position under the action of the second spring 162. Then, the second pusher 17 retracts to its original position. Under the action of the first spring 1510, the rack 154 moves downward to reset, driving the gear 153 to rotate in the opposite direction, causing the rotating shaft 152 to rotate in the opposite direction, and driving the stationary iron core placement seat 16 to swing upward 90° to reset. By setting a bearing seat 1514 at one end of the rotating shaft 152, the smoothness of the rotation of the rotating shaft 152 is improved. The rotation angle is limited by the cooperation of the rotating arm 156 and the first limiting post 155. The buffer 157 plays a buffering role.

[0085] The O-ring assembly station 7 includes a first frame 71, a first vibratory feeder 72, a conveying track 73, a gripper assembly 74, and a transverse sliding block 75, a longitudinal sliding block 76, and a material picking assembly 77 disposed on the first frame 71. The longitudinal sliding block 76 is fixed to the moving end of the transverse sliding block 75, and the moving end of the longitudinal sliding block 76 is fixed with the gripper assembly 74. The gripper assembly 74 is located above the material picking assembly 77, and the conveying track 73 is disposed between the material picking assembly 77 and the first vibratory feeder 72. The material handling assembly 77 has a first through groove 771 through which an O-ring conveyed by the conveying track 73 passes, a second receiving groove 772 for receiving the O-ring, a first cylinder 773, a slide rail 774, and a first slider 775. The second receiving groove 772 has a first position and a second position. When the second receiving groove 772 is in the first position, it corresponds to the first through groove 771. When the second receiving groove 772 is in the second position, it corresponds to the gripping end of the gripper assembly 74. The first cylinder 773 and the slide rail 774 are both fixed to the first frame 71. The first slider 775 is slidably connected to the slide rail 774 and is fixedly connected to the first cylinder 773. The first through groove 771 is provided on the side wall of the slide rail 774 near the conveying track 73 and communicates with the first groove 1516 of the slide rail 774. The second receiving groove 772 is disposed on the first slider 775 and has an opening that penetrates one side wall of the first slider 775 near the first through groove 771.

[0086] The O-rings are conveyed to the picking component 77 via the conveying track 73 by the first vibrating plate 72. The picking component 77 switches between two states to pick up the O-rings one by one. Specifically, when the second receiving groove 772 is in the first position, the O-rings on the conveying track 73 are pushed into the second receiving groove 772, and the second receiving groove 772 moves towards the second position. At this time, since the second receiving groove 772 does not correspond to the first through groove 771, the remaining O-rings are in a waiting state and cannot enter the second receiving groove 772, thus achieving individual picking. When the second receiving slot 772 moves to the second position, the longitudinal sliding block 76 drives the gripper assembly 74 to move downwards to grip the O-ring. Then, it drives the gripper assembly 74 to move upwards, and then, via the transverse sliding block 75, it drives the gripper assembly 74 and the O-ring on it to move above the stationary iron core of the O-ring assembly station 7. The longitudinal sliding block 76 then drives the gripper assembly 74 to move downwards towards the stationary iron core, and the O-ring is installed on the stationary iron core by the gripper assembly 74. In this way, the efficient gripping and installation of the O-ring is achieved.

[0087] During material handling, the second receiving groove 772 is initially in the first position. When the O-ring enters the second receiving groove 772, the first cylinder 773 extends, driving the first slider 775 forward until the second receiving groove 772 moves to the second position. Then, the gripper assembly 74 performs the gripping action on the O-ring. After removing the O-ring, the first cylinder 773 retracts and resets, driving the first slider 775 backward to reset, causing the second receiving groove 772 to move to the second position for the next O-ring handling operation. Through this simple structural design, the material handling operation of a single O-ring is achieved by conveying a row of O-rings along the conveyor track 73.

[0088] The slide rail 774 has a baffle 777 fixed to its top, which blocks the upper opening of the first through groove 771. This baffle limits the O-ring seal and prevents it from popping out of the upper opening of the first through groove 771.

[0089] The first frame 71 is fixed with a stop 778, which abuts against the end of the slide rail 774 away from the first cylinder 773. The stop 778 ensures that the first slider 775 is in place, thereby ensuring that the second receiving groove 772 moves accurately to the second position.

[0090] The rear sidewall of the baffle 777 has a groove 779. When the second receiving groove 772 is in the first position, the groove 779 is above the second receiving groove 772. The top of the slide rail 774 is provided with a first photoelectric sensor 7710. The test end of the first photoelectric sensor 7710 is located above the groove 779. The slide rail 774 is provided with a first photoelectric sensor 7710. The test end of the first photoelectric sensor 7710 faces the first position of the second receiving groove 772. The sidewall of the slide rail 774 near the conveying track 73 has a second through groove 7711, which communicates with the first sliding groove 1516 of the slide rail 774. The slide rail 774 is provided with a second photoelectric sensor 7712. The test end of the second photoelectric sensor 7712 extends into the second through groove 7711 and faces the second position of the second receiving groove 772. The first photoelectric sensor 7710 senses whether the O-ring has reached the first position, and the second photoelectric sensor 7712 senses whether the O-ring has reached the second position, thus avoiding misoperation.

[0091] The gripper assembly 74 includes a second cylinder 741, a horizontal plate 742, a first optical axis 743, a first linear bearing 744, a first mounting plate 745, a four-jaw cylinder 746, a first push plate 747, a limiting plate 748, and a clamping part 749. The second cylinder 741 is fixed to one side wall of the first mounting plate 745. The horizontal plate 742 is fixed to the telescopic end of the second cylinder 741. The first optical axis 743 is fixed to both opposite sides of the horizontal plate 742. The first linear bearing 744 is provided on both opposite sides of the first mounting plate 745. One side of the first optical axis 743... A first push plate 747 is fixed to the end of a first linear bearing 744. A four-jaw cylinder 746 is fixed to the other side wall of a first mounting plate 745. Several clamping parts 749 are fixed to the moving end of the four-jaw cylinder 746. A third through hole 7410 is opened in the middle of the first push plate 747. A part of the clamping part 749 passes through the third through hole 7410. Each jaw of the four-jaw cylinder 746 is fixed with a clamping part 749. A limiting plate 748 is fixed to the bottom of the four-jaw cylinder 746. The limiting plate 748 has limiting grooves 7412 with the same number of clamping parts 749. A second through hole 776 is opened on the first slider 775. The second through hole 776 is located below the second receiving groove 772 and communicates with the second receiving groove 772. The diameter of the second through hole 776 is larger than the inner diameter of the O-ring and smaller than the outer diameter of the O-ring. A notch 7411 is provided on the inner side of the bottom end of the clamp 749.

[0092] During the O-ring clamping and installation operation, the longitudinal sliding block 76 drives the gripper assembly 74 downward until the clamping part 749 passes through the O-ring and extends into the third through hole 7410. Then, the four-jaw cylinder 746 drives the clamping part 749 outward, expanding the inner diameter of the O-ring. Because the diameter of the second through hole 776 is larger than the inner diameter of the O-ring but smaller than the outer diameter of the O-ring, it ensures that the O-ring will not fall into the second through hole, and allows the clamping part 749 to move outward within the second through hole 776 to expand the inner diameter of the O-ring. After the inner diameter of the O-ring is expanded, the longitudinal sliding assembly 76 drives the gripper assembly 74 to move upward. When the gripper assembly 74 moves directly above the stationary iron core, the second cylinder 741 retracts, causing the horizontal plate 742 to move downward, which in turn causes the first optical axis 743 to move downward, driving the first push plate 747 to move downward, pushing the expanded O-ring downward onto the stationary iron core, so that the O-ring is fitted onto the stationary iron core. The inner diameter of the third through hole 7410 is smaller than the outer diameter of the expanded O-ring, ensuring that the expanded O-ring can be pushed out by the first push plate 747 without passing through the third through hole 7410. Specifically, when installing the O-ring, the clamp 749 moves downward until the upper end of the stationary iron core abuts against the inner top wall of the groove 7411, and then the first push plate 747 pushes the O-ring onto the O-ring installation position on the stationary iron core to complete the O-ring installation. The limiting groove limits the opening of the clamp 749, preventing it from opening too wide and damaging the O-ring seal.

[0093] The spring assembly station 8 includes a second frame 81, a second vibratory feeder 82, a conveying pipe 83, an intermittent feeding assembly 84, a material transfer assembly 85, and a first pick-and-place assembly 86. The intermittent feeding assembly 84, the material transfer assembly 85, and the first pick-and-place assembly 86 are all fixed to the second frame 81. The intermittent feeding assembly 84 and the second vibratory feeder 82 are connected by the conveying pipe 83. The material transfer assembly 85 has a first position and a second position. When the material transfer assembly 85 is in the first position, the material transfer end of the material transfer assembly 85 is located below the intermittent feeding assembly 84. When the material transfer assembly 85 is in the second position, the material transfer end of the material transfer assembly 85 is located below the first pick-and-place assembly 86.

[0094] Springs are fed one by one into the conveying pipe 83 via the second vibrating plate 82. From there, they enter the intermittent dropping assembly 84, where springs are dropped intermittently. Each spring falls onto the transfer assembly 85, which then moves it to below the first pick-and-place assembly 86. The first pick-and-place assembly 86 moves downward to remove the spring brought by the transfer assembly 85. The transfer assembly 85 then resets, and the first pick-and-place assembly 86 rises and falls above the stationary iron core at its current position, releasing the spring and allowing it to fall into the stationary iron core for installation. Thus, by using vertical dropping, combined with the intermittent dropping assembly 84, the first transfer assembly 85, and the first pick-and-place assembly 86, the spring sorting, picking, and installation operations are efficiently achieved, resulting in high spring installation efficiency.

[0095] The intermittent feeding assembly 84 includes a lifting component 841, a feeding block 842, a pressing rod 843, a second mounting base 844, and a third cylinder 845. The lifting component 841 is fixed to the second frame 81, and the feeding block 842 is fixed to the lifting end of the lifting component 841. The feeding block 842 has a feeding hole 846 and a fourth through hole 847 inside. The feeding hole 846 is connected to the conveying pipe 83, and the fourth through hole 847 is connected to the lower part of the feeding hole 846. The second mounting base 844 is fixed to one side wall of the feeding block 842, and the third cylinder 845 is fixed on the second mounting base 844. The pressing rod 843 is fixed to the telescopic end of the third cylinder 845. The pressing rod 843 can pass through the second mounting base and extend to the fourth through hole 847, pressing the spring that feeds the material to the position corresponding to the fourth through hole 847 into the feeding hole 846. The material transfer assembly 85 includes a third mounting base 851, a transverse component 852, a material distribution block 853, a mounting block 854, a return spring 855, a slider 856, a magnet 857, and a guide push plate 858. The third mounting base 851 is fixed to the second frame 81. The transverse component 852 and the guide push plate 858 are both fixed to the third mounting base 851. The material distribution block 853 is fixed to the moving end of the transverse component 852. The mounting block 854 is fixed to one side of the material distribution block 853. One end of the return spring 855 is fixed to the mounting block 854. The material distribution block 853 has interconnected... The sliding hole 859 and the first receiving hole 8510 are connected. The first receiving hole 8510 is located above the sliding hole 859 and penetrates the upper side wall of the material distribution block 853. The depth of the first receiving hole 8510 is less than or equal to the length of the installed spring. The sliding body 856 is slidably connected to the sliding hole 859. The other end of the return spring 855 is connected to or abuts against one end of the sliding body 856. The interior of the sliding body 856 has a second receiving hole 8511. A magnet 857 is embedded in the second receiving hole 8511. The other end of the sliding body 856 extends out of the sliding hole 859 and abuts against the guide push plate 858.

[0096] During the initial material distribution, the lifting component 841 drives the dropping block 842 and its upper structure downwards until they come into contact with the distributing block 853. At this time, the dropping hole 846 connects with the first receiving hole 8510. The springs conveyed by the conveying pipe 83 enter the dropping hole 846 in sequence and then enter the first receiving hole 8510. At this time, the bottom end of the spring contacts the magnet 857. When the distributing block 853 moves, the magnet 857 attracts the spring, preventing the spring in the first receiving hole 8510 from running away. The first receiving hole 8510 can only accommodate one spring. After the spring falls into the first receiving hole 8510, the third cylinder 845 pushes the pressing rod 843 to move to the right to press down the spring at the bottom of the dropping hole 846. This prevents the other springs in the sequence from falling out of the dropping hole 846 due to gravity, ensuring that one spring is distributed and transferred at a time. Then, the lifting component 841 drives the dropping hole 846 and its upper structure upwards to reset. During subsequent material distribution, the lifting component 841 drives the material drop block 842 and its upper structure downwards until they abut against the material distribution block 853. Then, the third cylinder 845 drives the pressure rod 843 to move to the left to reset. The spring inside the material drop hole 846 automatically falls out of the hole under gravity and enters the first receiving hole 8510. The third cylinder 845 pushes the pressure rod 843 to the right to press down the spring at the bottom of the material drop hole 846. Then, the lifting component 841 drives the material drop hole 846 and its upper structure upwards to reset. This allows for one-by-one distribution of multiple queued springs, requiring only simple lifting and pushing movements.

[0097] The lifting component 841 includes a fourth cylinder 8411, a first connecting seat 8412, a second slider 8413, and a first guide rail 8414. The fourth cylinder 8411 and the second slider 8413 are both fixed to the second frame 81. The first connecting seat 8412 is fixed to the top of the fourth cylinder 8411. The first guide rail 8414 is fixed to the first connecting seat 8412 and slides with the second slider 8413. The dropping block 842 is fixed to the first guide rail 8414. The pressing end of the pressing rod 843 has an arc-shaped surface 8431.

[0098] When the material drop block 842 needs to move downwards, the fourth cylinder 8411 retracts, causing the first connecting seat 8412 to move downwards, which in turn causes the first guide rail 8414 to move downwards, thus causing the material drop block 842 to move downwards. When the material drop block 842 needs to move upwards, the fourth cylinder 8411 extends, causing the first connecting seat 8412 to move upwards, which in turn causes the first guide rail 8414 to move upwards, thus causing the material drop block 842 to move upwards. The curved surface 8431 better fits the spring, preventing it from being deformed.

[0099] The guide push plate 858 includes a first plane 8581, a second plane 8582, and an inclined plane 8583. The first plane 8581 and the second plane 8582 are connected by the inclined plane 8583. When the slide body 856 is located below the intermittent feeding component 84, the slide body 856 abuts against the first plane 8581. When the slide body 856 is located below the first picking and dispensing component 86, the slide body 856 abuts against the second plane 8582. The second plane 8582 is set closer to the dispensing block 853 than the first plane 8581.

[0100] During the movement of the material distribution block 853 to the right, the inclined plane 8583 pushes the slide body 856 backward. When the material distribution block 853 moves to below the position of the first material handling assembly 86, the second plane 8582 has pushed the slide body 856 backward until the magnet 857 is away from the first receiving hole 8510. At this time, the bottom end of the spring in the first receiving hole 8510 is in contact with the top wall of the slide body 856 and is no longer attracted by the magnet 857, making it easier for the first material handling assembly 86 to remove the spring from the first receiving hole 8510. At this time, the return spring 855 is compressed. After the spring in the first receiving hole 8510 is removed, the transverse member 852 drives the material distribution block 853 to move to the left to reset. Under the action of the return spring 855, the slide body 856 is kept in contact with the guide push plate 858 during the left and right movement, so that after the material distribution block 853 moves to the left to reset, the magnet 857 is reset to directly below the first receiving hole 8510.

[0101] The transverse component 852 includes a fifth cylinder 8521, a second guide rail 8522, a third slider 8523, and a second connecting seat 8524. Both the fifth cylinder 8521 and the third slider 8523 are fixed to the third mounting base 851. The second guide rail 8522 is slidably connected to the third slider 8523. The telescopic end of the fifth cylinder 8521 is fixedly connected to the second guide rail 8522 via the second connecting seat 8524. The material distribution block 853 is fixed to the second guide rail 8522. A roller 8512 is rotatably connected to one end of the slide body 856 near the guide push plate 858. When the material distribution block 853 needs to be pushed to the right, the fifth cylinder 8521 extends, driving the second guide rail 8522 to move to the right via the second connecting seat 8524, thus causing the material distribution block 853 to move to the right. The cooperation between the roller 8512 and the guide push plate 858 makes the sliding of the slide body 856 smoother and more stable.

[0102] The first material handling assembly 86 includes a sixth cylinder 861, a third connecting seat 862, a third guide rail 863, a fourth slider 864, a seventh cylinder 865, a material handling block 866, and a material handling needle 867. The sixth cylinder 861 and the fourth slider 864 are both fixed to the second frame 81. The third guide rail 863 is slidably connected to the fourth slider 864. The sixth cylinder 861 and the third guide rail 863 are connected by the third connecting seat 862. The seventh cylinder 865 and the material handling block 866 are fixed on the third guide rail 863. The material handling block 866 is located below the seventh cylinder 865. The bottom end of the seventh cylinder 865 is fixed with the material handling needle 867. The material handling block 866 has a through hole 868 for the material handling needle 867 to pass through.

[0103] When the spring needs to be removed, the seventh cylinder 865 extends, causing the picking needle 867 to move downward, so that the picking needle 867 extends into the inner ring of the spring. The sixth cylinder 861 extends, causing the third connecting seat 862 to move upward, so that the third guide rail 863 moves upward, causing the feeding block 866 and the seventh cylinder 865 to move upward, so that the picking needle 867 moves upward and removes the spring from the first receiving hole 8510. After the material distribution block moves to the left and resets, when the stationary iron core is conveyed to directly below the picking needle 867, the sixth cylinder 861 retracts, causing the third connecting seat 862 to move downwards, which in turn causes the third guide rail 863 to move downwards, causing the material dispensing block 866 and the seventh cylinder 865 to move downwards, which in turn causes the picking needle 867 to move downwards. When the picking needle 867 approaches the stationary iron core, the sixth cylinder 861 stops moving, and then the seventh cylinder 865 retracts and resets. Due to the obstruction of the material dispensing block 866, the spring cannot follow the picking needle 867 upwards, causing it to detach from the picking needle 867. Then, under the influence of gravity, it falls into the stationary iron core to complete the installation of the valve spring.

[0104] The testing equipment includes a second turntable, a resistance testing station, a withstand voltage testing station, a flow rate testing station, and an airtightness testing device 9. The resistance testing station, withstand voltage testing station, and flow rate testing station are distributed around the second turntable. A transfer mechanism is provided on one side of the second turntable, which delivers the product to the airtightness testing device 9 for airtightness testing.

[0105] The airtightness testing device 9 includes a machine base 93 and a second material handling assembly 91, a second feeding track, and an air valve airtightness testing assembly 92 disposed on the machine base. The second feeding track 94 is disposed between the second material handling assembly 91 and the air valve airtightness testing assembly 92. The second material handling assembly 91 has multiple material handling ends 918, all of which are located above the second feeding track. The second material handling assembly 91 has an adjusting member 917 that can change the spacing between the multiple material handling ends 918. The air valve airtightness testing assembly 92 has a material transfer member 922 corresponding to the material handling ends 918. The material transfer direction of each material transfer member 922 is perpendicular to the feeding direction of the second feeding track.

[0106] Products are conveyed from left to right along the second feeding track. Four products are removed from the second feeding track by the second pick-and-place assembly 91. The distance between the products is then adjusted by the adjusting component 917, and the products are transferred to the four corresponding air valve airtightness testing assemblies 92 for airtightness testing. This efficient method allows for the transfer of multiple products at once and simultaneous airtightness testing. The process is simple and efficient, utilizing lateral clamping and vertical pushing.

[0107] The second material handling assembly 91 includes a first transverse cylinder 911, a first fixed plate 912, a slide bar 913, a second fixed plate 914, a first fixed block 915, a first lifting cylinder 916, an adjusting component 917, and a material handling end 918. The first fixed plate 912 is fixed to the end of the first transverse cylinder 911 facing the airtightness testing assembly 92. A slide bar 913 is fixed to the side wall of the first fixed plate 912 away from the first transverse cylinder 911. A first lifting cylinder 916 is fixed to one side wall near the first transverse cylinder 911. A first fixing block 915 is fixed to the top of the second fixing plate 914. The top of the first lifting cylinder 916 is fixedly connected to the first fixing block 915. A second sliding groove 919 is provided on one side wall of the second fixing plate 914 near the first fixing plate 912. The second sliding groove 919 slides with the sliding strip 913. An adjusting member 917 is provided on the second fixing plate 914. A material picking and discharging end 918 is provided on the adjusting member 917.

[0108] The first horizontal cylinder 911 pushes the first fixed plate 912 and its upper structure to move back and forth, and the first lifting cylinder 916 pushes the second fixed plate 914 and its upper structure to move up and down. With the setting of the material pick-up and drop-off end 918, the action of transferring from the second feeding track to each material transfer component 922 is realized.

[0109] The adjusting component 917 includes a fourth guide rail 9171, a fifth slider 9172, a fifth guide rail 9173, a sixth slider 9174, a second lifting cylinder 9175, a hinge shaft 9176, a connecting rod 9177, a sixth guide rail 9178, and a seventh slider 9179. The fourth guide rail 9171 is fixed to the side wall of the second fixing plate 914 away from the first fixing plate 912. The fifth slider 9172 is slidably connected to the fourth guide rail 9171. The fifth guide rail 9173 is fixed to the fifth slider 9172. The sixth slider 9174 is slidably connected to the fifth guide rail 9173. The sixth guide rail 9178 is fixed to the side wall of the second fixing plate 914 away from the first fixing plate 912. The sixth guide rail 9178 is located below the fifth guide rail 9173. The sixth guide rail 9178 slides upwards... The system is connected to four seventh sliders 9179, each of which is fixed with a material pick-up / placement end 918. The sixth slider 9174 and the fifth guide rail 9173 are both fixed with hinge shafts 9176. The hinge shaft 9176 located on the fifth guide rail 9173 is located in the middle of the fifth guide rail 9173. There are two sixth sliders 9174, located on the left and right sides of the hinge shaft 9176 in the middle of the fifth guide rail 9173, respectively. Each hinge shaft 9176 is hinged to two connecting rods 9177. The two connecting rods 9177 are respectively hinged to two material pick-up / placement ends 918. Two adjacent connecting rods 9177 are hinged together to the same material pick-up / placement end 918. A second lifting cylinder 9175 is fixed on the first fixed block 915. The bottom end of the second lifting cylinder 9175 is fixedly connected to the fifth guide rail 9173.

[0110] When the distance between products needs to be adjusted, the second lifting cylinder 9175 extends, causing the fifth guide rail 9173 to slide downwards. This opens the adjacent connecting rods 9177, increasing the distance between the adjacent seventh sliders 9179 and the material handling ends 918, thus increasing the distance between adjacent products. Conversely, the second lifting cylinder 9175 retracts, causing the fifth guide rail 9173 to slide upwards. This closes the adjacent connecting rods 9177, decreasing the distance between the adjacent seventh sliders 91793 and the material handling ends 918, thus decreasing the distance between adjacent products. This ingenious design achieves the change in distance between products through the simple extension and retraction of the second lifting cylinder 9175.

[0111] The material handling end 918 includes a fourth mounting base 9181, a third lifting cylinder 9182, a connecting block 9183, and an electromagnet 9184. The fourth mounting base 9181 is fixed to the seventh slider 9179. The third lifting cylinder 9182 is fixed to the upper part of the fourth mounting base 9181. The bottom end of the third lifting cylinder 9182 is fixed with the connecting block 9183. The bottom end of the connecting block 9183 is fixed with the electromagnet 9184. The electromagnet 9184 passes through the bottom of the fourth mounting base 9181.

[0112] When material needs to be picked up, the third lifting cylinder 9182 extends, causing the connecting block 9183 to move downwards, which in turn causes the electromagnet 9184 to move downwards. The electromagnet 9184 is energized and attracts the yoke on the product. When material needs to be unloaded, the picking / unloading end 918 is moved to the desired position, the electromagnet 9184 is de-energized, and the product loses the attraction of the electromagnet 9184 and falls onto the transfer component 922.

[0113] The fourth mounting base 9181 has a clamping part 9185 at its bottom end, which makes it easier to clamp the product.

[0114] The second fixing plate 914 has a second fixing block 91710 fixed to its top, and the second fixing block 91710 has a second limiting post 91711 fixed to it. The second limiting post 91711 is located above the fifth guide rail 9173. The second limiting post 91711 limits the upward movement of the fifth guide rail 9173.

[0115] The airtightness testing assembly 92 includes a mounting platform 921, a material transfer component 922, a second optical axis 923, a second linear bearing 924, a second mounting plate 925, a third mounting plate 926, a fourth lifting cylinder 927, a pressure block 928, and a second transverse cylinder 929. The mounting platform 921 is fixed to the machine base. The material transfer component 922 is located on the top of the mounting platform 921. The second optical axis 923 is fixed to the top of the mounting platform 921. The second mounting plate 925 is fixed to the top of the second optical axis 923. The fourth lifting cylinder 927 is fixed to the top of the second mounting plate 925. The third mounting plate 926 is sleeved on the second optical axis 923 and can slide up and down along the second optical axis 923. The top of the third mounting plate 926 is fixed with a second linear bearing 924, through which the second optical axis 923 passes. The bottom of the third mounting plate 926 is fixed with several second transverse cylinders 929 and pressure blocks 928. The telescopic end of each second transverse cylinder 929 is connected to a test air pipe 9210 of an air valve airtightness tester. The pressure block 928 is located above the test air pipe. The bottom end of the fourth lifting cylinder 927 is fixedly connected to the top of the third mounting plate 926.

[0116] After the product is placed on the transfer component 922, the transfer component 922 moves the product below the third mounting plate 926. Then, the fourth lifting cylinder 927 extends, driving the third mounting plate 926 and its upper structure to move downwards until the pressure block 928 presses down on the product. Then, the four second horizontal cylinders 929 extend, driving the test air tube of the air valve airtightness tester to connect with the air hole of the product. After the airtightness test is passed by the air valve airtightness tester and a qualified airtightness test signal is obtained, the four second horizontal cylinders 929 extend and retract to reset, the fourth lifting cylinder 927 retracts and resets, and the transfer component 922 pushes the product to the initial position.

[0117] The material transfer component 922 includes a material transfer cylinder 9221, a seventh guide rail 9222, an eighth slider 9223, a placement block 9224, a third fixing block 9225, and a third limiting post 9226. The material transfer cylinder 9221 and the seventh guide rail 9222 are both fixed to the top of the mounting platform 921. The top of the seventh guide rail 9222 is slidably connected to the eighth slider 9223. The telescopic end of the material transfer cylinder 9221 is fixedly connected to the eighth slider 9223. The top of the eighth slider 9223 is fixedly attached to the placement block 9224. The tops of the mounting platform 921 at both the front and rear ends of the seventh guide rail 9222 are both fixedly attached to the third fixing block 9225. The third limiting post 9226 is fixedly attached to the third fixing block 9225.

[0118] When the product needs to be moved to the inspection station, the transfer cylinder 9221 retracts, causing the eighth slider 9223 to slide backward until it reaches the inspection station, thus moving the placement block 9224 and the product on it to the inspection station. The third limiting posts 9226, set at the front and rear, limit the movement stroke of the eighth slider 9223.

[0119] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A valve assembly and testing production line, characterized in that: This includes assembly equipment and testing equipment arranged sequentially along the production direction; The assembly equipment includes a first turntable and a first feeding track, the first feeding track being located on one side of the first turntable; Along the conveying direction of the first feeding track, there are coil frame assembly station, moving iron core assembly station, and yoke assembly station arranged in sequence. Along the circumference of the first turntable are arranged the stationary iron core assembly station, the O-ring seal assembly station, and the spring assembly station. The turntable is located between the moving iron core assembly station and the yoke assembly station. The fixed end of the first turntable is fixed with a first pusher, and the rotating end of the first turntable is provided with a plurality of flipping components spaced apart along the circumference of the turntable. Each of the aforementioned flipping components is provided with a static iron core placement seat, and a second pushing component is provided below the first pushing component; The second pusher is used to push the flipping component that has rotated above it to move, so as to perform the flipping operation; The pushing end of the first pushing member is positioned toward the first feeding track. The first pushing member is used to push the stationary iron core placement seat, which is rotated to its front, toward the coil frame to perform the stationary iron core installation operation. The flipping assembly includes a first mounting base, a rotating shaft, a gear, a rack, a first limiting post, a rotating arm, a buffer, a first connecting member, a second connecting member, and a first spring; The first mounting base is fixed to the rotating end of the first turntable; The rotating shaft is rotatably connected to the first mounting base, the gear is fixed to the rotating shaft, and the rack is slidably connected to the first mounting base, with the rack meshing with the gear; The bottom end of the rack passes through the rotating end of the first mounting base and the first turntable; The first mounting base includes a base, a concave seat, a first bearing, a bearing seat, and a vertical plate; Both the concave seat and the upright plate are fixed to the top of the base, and the upright plate is located on the rear side of the concave seat; The rear end of the concave seat is provided with a first sliding groove for the rack to slide, and the vertical plate blocks one side opening of the first sliding groove; The first bearing is disposed in the concave seat, and the gear is located inside the concave seat; The bearing housing is fixed to the top of the base and is arranged opposite to the concave seat. One end of the rotating shaft is inserted into the bearing housing, and the other end of the rotating shaft passes through the concave seat. One end of the rotating shaft passes through the concave seat and is fixed with a rotating arm, which has a first arm and a second arm that are perpendicular to each other. The upper and lower sides of the upright plate are both fixed with first limiting posts; In the initial state, the stationary iron core holder is vertically upward, and the first arm abuts against the first limiting post located on the upper side; After the flipping is complete, the stationary iron core placement seat faces forward horizontally, and the second arm abuts against the first limiting post located on the lower side; Both the upper and lower sides of the upright plate are fixed with buffer components; The buffer is located between the first limiting posts on the upper and lower sides; The rear end of the rack is fixed with a first connector, and the rear end of the first mounting base is fixed with a second connector; One end of the first spring is fixed to the first connector, and the other end of the first spring is fixed to the second connector.

2. The valve assembly and testing production line according to claim 1, characterized in that: The stationary iron core placement seat includes a fixed seat, a second spring, a stop block, a limit block, and a mounting column; The fixed base is fixedly connected to the rotating shaft, and the fixed base has a first through hole through which the mounting post passes and is slidably engaged; One end of the mounting post has a first receiving groove for accommodating the stationary iron core, and the other end of the mounting post passes through the first through hole and is fixed with a stop block. A second spring is fixed between the stop block and the fixing seat, and the second spring is arranged around the mounting post. A limiting block is fixed to one side of the mounting post near the first receiving groove, and the limiting block and the second spring are located on opposite sides of the fixing seat.

3. The valve assembly and testing production line according to claim 1, characterized in that: The O-ring assembly station includes a first frame, a first vibratory feeder, a conveying track, a gripper assembly, and a transverse sliding block, a longitudinal sliding block, and a material handling assembly disposed on the first frame; The longitudinal sliding block is fixed to the moving end of the transverse sliding block; The moving end of the longitudinal sliding block is fixed with a gripper assembly, which is located above the material handling assembly; A conveying track is provided between the material handling component and the first vibratory plate; The material handling assembly has a first through groove through which the O-ring conveyed by the conveying track passes, a second receiving groove for accommodating the O-ring, a first cylinder, a slide rail, and a first slider. The second receiving groove has a first position and a second position. When the second receiving groove is in the first position, it corresponds to the first through groove. When the second receiving groove is in the second position, it corresponds to the gripping end of the gripper assembly. The first cylinder and the slide rail are both fixed to the first frame; A first slider is slidably connected to the slide rail, and the first slider is fixedly connected to the first cylinder. The first through groove is disposed on one side wall of the slide rail near the conveying track and communicates with the first slide groove of the slide rail; The second receiving groove is disposed on the first slider and has an opening that penetrates one side wall of the first slider near the first through groove.

4. The valve assembly and testing production line according to claim 3, characterized in that: The first slider has a second through hole, which is located below the second receiving groove and communicates with the second receiving groove; The diameter of the second through hole is larger than the inner diameter of the O-ring and smaller than the outer diameter of the O-ring; A baffle is fixed to the top of the slide rail, and the baffle blocks the upper opening of the first through groove; A stop is fixed on the first frame, and the stop abuts against the end of the slide rail away from the first cylinder; The rear side wall of the baffle is provided with a groove, and when the second receiving groove is in the first position, the groove is located above the second receiving groove; A first photoelectric sensor is provided on the top of the slide rail, and the test end of the first photoelectric sensor is located above the groove. A first photoelectric sensor is provided on the slide rail, and the test end of the first photoelectric sensor faces the first position of the second receiving groove. A second through groove is provided on one side wall of the slide rail near the conveying track, and it communicates with the first slide groove of the slide rail. A second photoelectric sensor is provided on the slide rail, and the test end of the second photoelectric sensor extends into the second through groove and faces the second position of the second receiving groove.

5. The valve assembly and testing production line according to claim 3, characterized in that: The gripper assembly includes a second cylinder, a horizontal plate, a first optical axis, a first linear bearing, a first mounting plate, a four-jaw cylinder, a first push plate, a limiting plate, and a clamping part; A second cylinder is fixed to one side wall of the first mounting plate, a horizontal plate is fixed to the telescopic end of the second cylinder, a first optical axis is fixed to both sides of the horizontal plate, a first linear bearing is provided on both sides of the first mounting plate, and a first push plate is fixed to one end of the first optical axis through the first linear bearing. A four-jaw cylinder is fixed to the other side wall of the first mounting plate, and the moving end of the four-jaw cylinder is fixed with several clamps. A third through hole is provided in the middle of the first push plate, and a part of the clamping part passes through the third through hole; Each claw of a four-jaw cylinder is fixed with a clamping part; The limiting plate is fixed to the bottom of the four-jaw cylinder, and the limiting plate has limiting grooves that are the same number as the clamping parts. A notch is provided on the inner side of the bottom end of the clamp.

6. The air valve assembly and testing production line according to claim 1, characterized in that: The spring assembly station includes a second frame, a second vibratory feeder, a conveying pipe, an intermittent feeding assembly, a material transfer assembly, and a first material pick-and-place assembly; The intermittent feeding assembly, the material transfer assembly, and the first material pick-and-place assembly are all fixed to the second frame; The intermittent feeding assembly is connected to the second vibratory plate via a conveying pipe; The material transfer assembly has a first position and a second position; When the material transfer component is in the first position, the material transfer end of the material transfer component is located below the intermittent material dropping component; When the material transfer component is in the second position, the material transfer end of the material transfer component is located below the first material pick-and-place component.

7. The air valve assembly and testing production line according to claim 6, characterized in that: The intermittent material feeding assembly includes a lifting component, a material feeding block, a pressure rod, a second mounting base, and a third cylinder; The lifting component is fixed to the second frame; The material dropping block is fixed to the lifting end of the lifting component. The material dropping block has a material dropping hole and a fourth through hole inside. The material dropping hole is connected to the conveying pipe, and the fourth through hole is connected to the lower part of the material dropping hole. A second mounting base is fixed to one side wall of the material dropping block, and a third cylinder is fixed to the second mounting base; The telescopic end of the third cylinder is fixed with a pressure rod, which can pass through the second mounting base and extend to the fourth through hole, pressing the spring that drops the material into the material dropping hole at the position corresponding to the fourth through hole.

8. The valve assembly and testing production line according to claim 7, characterized in that: The lifting component includes a fourth cylinder, a first connecting seat, a second slider, and a first guide rail; The fourth cylinder and the second slider are both fixed to the second frame; The top of the fourth cylinder is fixed with a first connecting seat, and the first guide rail is fixed to the first connecting seat and slides in cooperation with the second slider. The material drop block is fixed to the first guide rail; The pressing end of the pressing rod has an arc-shaped surface; The material transfer assembly includes a third mounting base, a transverse component, a material distribution block, a mounting block, a return spring, a slider, a magnet, and a guide push plate; The third mounting base is fixed to the second frame; Both the transverse sliding member and the guide push plate are fixed to the third mounting base; The material distribution block is fixed to the moving end of the transverse component; The mounting block is fixed to one side of the material distribution block, and one end of the reset spring is fixed to the mounting block; The material distribution block has an interconnected sliding hole and a first receiving hole inside. The first receiving hole is located above the sliding hole and penetrates the upper side wall of the material distribution block. The sliding body is slidably connected to the sliding hole. The other end of the return spring is connected to or abuts against one end of the sliding body. The slide body has a second receiving hole inside, and a magnet is embedded in the second receiving hole; The other end of the slide body extends out of the sliding hole and abuts against the guide push plate.

9. The valve assembly and testing production line according to claim 8, characterized in that: The guide push plate includes a first plane, a second plane, and an inclined surface; The first plane and the second plane are connected by an inclined plane; When the slider is located below the intermittent feeding assembly, the slider abuts against the first plane; When the slider is located below the first material handling assembly, the slider abuts against the second plane; The second plane is positioned closer to the material distribution block relative to the first plane; The transverse component includes a fifth cylinder, a second guide rail, a third slider, and a second connecting seat; Both the fifth cylinder and the third slider are fixed to the third mounting base; The third slider is slidably connected to a second guide rail; The telescopic end of the fifth cylinder is fixedly connected to the second guide rail via the second connecting seat, and the material distribution block is fixed to the second guide rail; A roller is rotatably connected to one end of the slide body near the guide push plate; The first material handling assembly includes a sixth cylinder, a third connecting seat, a third guide rail, a fourth slider, a seventh cylinder, a material handling block, and a material handling needle; The sixth cylinder and the fourth slider are both fixed to the second frame; The third guide rail is slidably connected to the fourth slider, and the sixth cylinder is connected to the third guide rail via a third connecting seat; A seventh cylinder and a feeding block are fixed on the third guide rail. The feeding block is located below the seventh cylinder. A picking needle is fixed at the bottom of the seventh cylinder. The feeding block has a through hole for the picking needle to pass through.

10. The valve assembly and testing production line according to claim 1, characterized in that: The testing equipment includes a second turntable, a resistance testing station, a withstand voltage testing station, a flow rate testing station, and an airtightness testing device. The resistance testing station, withstand voltage testing station, and flow rate testing station are distributed along the circumference of the second turntable; A transfer mechanism is provided on one side of the second turntable, which delivers the product to the airtightness testing device for airtightness testing.

11. The valve assembly and testing production line according to claim 10, characterized in that: The air tightness testing device includes a machine base and a second material handling assembly, a second feeding track, and an air valve air tightness testing assembly disposed on the machine base. The second feeding track is positioned between the second material handling assembly and the air valve airtightness testing assembly; The second material handling assembly has multiple material handling ends, all of which are located above the second feeding track; The second material handling assembly has an adjusting element that can change the spacing between multiple material handling ends; The airtightness testing component of the air valve has a material transfer component corresponding to the material pick-up and drop-off end, and the material transfer direction of each material transfer component is perpendicular to the material feeding direction of the second feeding track. The second material handling assembly includes a first transverse cylinder, a first fixed plate, a slide bar, a second fixed plate, a first fixed block, a first lifting cylinder, an adjusting component, and a material handling end; A first fixing plate is fixed to one end of the first transverse cylinder facing the airtightness test component of the valve. A slide bar is fixed to the side wall of the first fixed plate away from the first transverse cylinder, and a first lifting cylinder is fixed to the side wall of the first fixed plate close to the first transverse cylinder. The top of the second fixing plate is fixed with a first fixing block, and the top of the first lifting cylinder is fixedly connected to the first fixing block; The second fixing plate has a second sliding groove on one side wall near the first fixing plate, and the second sliding groove slides in cooperation with the slide bar; The adjusting component is disposed on the second fixed plate, and the material picking and placing end is disposed on the adjusting component.

12. The valve assembly and testing production line according to claim 11, characterized in that: The adjusting components include a fourth guide rail, a fifth slider, a sixth slider, a second lifting cylinder, a hinge shaft, a connecting rod, a sixth guide rail, and a seventh slider. A fourth guide rail is fixed to the side wall of the second fixing plate away from the first fixing plate, and a fifth slider is slidably connected to the fourth guide rail; A fifth guide rail is fixed on the fifth slider, and a sixth slider is slidably connected to the fifth guide rail; A sixth guide rail is fixed on the side wall of the second fixed plate away from the first fixed plate. The sixth guide rail is located below the fifth guide rail. Several seventh sliders are slidably connected on the sixth guide rail, and each seventh slider is fixed with a material picking and placing end. The sixth slider and the fifth guide rail are both fixed with hinge shafts. Each hinge shaft is hinged with two connecting rods. The two connecting rods are respectively hinged to the two picking and dispensing ends. Two adjacent connecting rods are hinged together to the same picking and dispensing end. A second lifting cylinder is fixed on the first fixing block, and the bottom end of the second lifting cylinder is fixedly connected to the fifth guide rail.

13. The valve assembly and testing production line according to claim 12, characterized in that: The material handling end includes a fourth mounting base, a third lifting cylinder, a connecting block, and an electromagnet; The fourth mounting base is fixed to the seventh slider; The third lifting cylinder is fixed to the upper part of the fourth mounting base, and a connecting block is fixed to the bottom end of the third lifting cylinder; An electromagnet is fixed to the bottom of the connecting block, and the electromagnet passes through the bottom of the fourth mounting base. The bottom end of the fourth mounting base has a clamping part; The hinge shaft of the fifth guide rail is located in the middle of the fifth guide rail; There are two sixth sliders, located on the left and right sides of the hinge shaft in the middle of the fifth guide rail, respectively. There are four seventh sliders in total; A second fixing block is fixed to the top of the second fixing plate, and a second limiting post is fixed to the second fixing block. The second limiting post is located above the fifth guide rail. The airtightness testing assembly for the valve includes a mounting platform, a material transfer component, a second optical axis, a second linear bearing, a second mounting plate, a third mounting plate, a fourth lifting cylinder, a pressure block, and a second transverse cylinder. The mounting platform is fixed to the machine base; The material transfer component is disposed on the top of the mounting platform; A second optical axis is fixed to the top of the mounting platform, a second mounting plate is fixed to the top of the second optical axis, and a fourth lifting cylinder is fixed to the top of the second mounting plate. The third mounting plate is sleeved on the second optical axis and can slide up and down along the second optical axis; The top of the third mounting plate is fixed with a second linear bearing, the second optical axis passes through the second linear bearing, and the bottom of the third mounting plate is fixed with a number of second transverse cylinders and pressure blocks. The telescopic end of each second transverse cylinder is connected to a test air tube of an air valve airtightness tester, and the pressure block is located above the test air tube. The bottom end of the fourth lifting cylinder is fixedly connected to the top of the third mounting plate.

14. The valve assembly and testing production line according to claim 13, characterized in that: The material transfer component includes a material transfer cylinder, a seventh guide rail, an eighth slider, a placement block, a third fixing block, and a third limiting post; The material transfer cylinder and the seventh guide rail are both fixed to the top of the mounting platform; The top of the seventh guide rail is slidably connected to the eighth slider, the telescopic end of the transfer cylinder is fixedly connected to the eighth slider, and a placement block is fixedly attached to the top of the eighth slider. The top of the mounting platform at both ends of the seventh guide rail is fixed with a third fixing block, and a third limiting post is fixed on the third fixing block.

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