Full-detection equipment and detection method for valve element of automobile electromagnetic valve

Abstract

The invention belongs to the field of automobile part detection, and particularly relates to a full-inspection device and method for an automobile electromagnetic valve element, and the device comprises a rack, and the rack is provided with a radial hole detection unit, a composite detection unit and a surface foreign matter detection unit which are used for sequentially detecting the valve element according to the detection sequence. Parameter requirements of each part of the valve element are detected through the radial hole detection unit, the composite detection unit and the surface foreign matter detection unit in sequence, transfer and transportation are carried out between the units through the mechanical arm, and full-process automatic operation can be achieved only by placing a material disc containing the valve element on the material disc unit. And manual operation is not needed in the process, so that the detection efficiency is improved, and the detection deviation is reduced.

Description

Technical Field

[0001] The invention belongs to the field of automobile parts detection, and in particular relates to full detection equipment and a detection method for an automobile solenoid valve core. Background Art

[0002] Solenoid valves are industrial equipment controlled by electromagnetics. They are basic automation components used to control fluids. They are actuators and are not limited to hydraulic or pneumatic. They are used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, and the accuracy and flexibility of the control can be guaranteed. There are many types of solenoid valves, and different solenoid valves play a role in different positions in the control system. The most commonly used ones are check valves, safety valves, directional control valves, speed regulating valves, etc.

[0003] A solenoid valve core detection device disclosed in patent CN219224080U relates to the field of solenoid valve core technology, including a base plate, an electric push rod is fixedly installed on the upper surface of the base plate, a push block is fixedly installed on the output end of the electric push rod, a rotating shaft is fixedly installed on the outer surface of the push block, a connecting rod is movably connected to the outer surface of the rotating shaft, a clamp is movably installed on the outer surface of the fixed block, a first air pump is fixedly installed on the upper surface of the base plate, a first pipeline is movably connected to the output end of the first air pump, a second air pump is fixedly installed on the upper surface of the base plate, and a second pipeline is movably connected to the output end of the second air pump. The solenoid valve core detection device can fix the solenoid valve through the mutual cooperation between the structures in the clamping mechanism, thereby improving the detection accuracy, and the sealing of the solenoid valve core can be detected through the mutual cooperation between the air pump, the pipeline, the barometer and the pushing device.

[0004] In the above scheme, although the detection accuracy is improved to a certain extent, the detection of each workpiece requires manual loading and unloading, and manual operation is also required during the inspection process. Not only is the detection efficiency low, but also the unknown detection deviation will increase due to the high degree of manual participation. Summary of the invention

[0005] The purpose of the present invention is to provide a full inspection device and a method for an automobile solenoid valve core that can solve the above technical problems.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A full inspection device for a valve core of an automobile solenoid valve comprises a frame on which a radial hole inspection unit, a composite inspection unit and a surface foreign matter inspection unit are arranged for inspecting the valve core in sequence according to an inspection order; The radial hole detection unit includes a valve core correction component that drives the lying valve core to be detected to rotate to a set angle so that the radial hole of the valve core is in an upright state, and also includes a radial hole detection component having a radial hole detection position and a valve core material removal position; The composite detection unit includes a turntable mechanical handling component for obtaining at least the valve core at the material position to be taken from the valve core, and at least one shape detection component and at least one axial hole detection component sequentially distributed along the handling track direction of the turntable mechanical handling component; The surface foreign matter detection unit includes a top detection component and a bottom lighting component having a detection position and a material position to be taken. When the bottom lighting component is in the detection position, the turntable-type mechanical handling component releases the valve core to be detected onto the bottom lighting component and the top detection component is located directly above the bottom lighting component.

[0007] In the full inspection equipment of the automobile solenoid valve core, the valve core correction assembly includes at least one valve core bearing seat and at least one valve core rotation drive manipulator corresponding to the valve core bearing seat, and a first detection sensor for detecting the radial hole position is provided on the valve core bearing seat.

[0008] In the full inspection equipment of the automobile solenoid valve core, the first detection sensor is a photoelectric sensor and is arranged at an angle. When the detection light of the first detection sensor passes through the radial hole, the valve core rotation drives the manipulator to continue rotating the valve core and make the radial hole upright.

[0009] In the full inspection equipment of the automobile solenoid valve core, the radial hole detection assembly includes a valve core bearing sliding seat sliding relative to the frame, the valve core bearing sliding seat has at least a radial hole detection position and a valve core waiting position, and a radial hole detection check gauge is also provided on the frame, and the radial hole detection check gauge is connected to the first lifting drive device; when the valve core bearing sliding seat carries the valve core and moves to the radial hole detection position, the radial hole detection check gauge detects the radial hole.

[0010] In the full inspection equipment of the automobile solenoid valve core, the appearance detection components have two groups and are defined as the first appearance detection component and the second appearance detection component, the axial hole detection components have two groups and are defined as the first axial hole detection component and the second axial hole detection component, the first appearance detection component, the first axial hole detection component, the second appearance detection component and the second axial hole detection component are distributed in sequence in the direction of the conveying track.

[0011] In the full inspection equipment of the automobile solenoid valve core, the shape detection component includes a shape detection bearing seat fixed to the frame, and a shape detection mobile frame moving relative to the shape detection bearing seat, and a shape detection device is provided on the shape detection mobile frame, and the shape detection mobile frame is connected to the shape frame driving device; the axial hole detection component includes at least one axial hole detection seat, and at least one axial hole stop gauge corresponding to the axial hole detection seat, and the axial hole stop gauge is connected to the axial hole seat driving device.

[0012] In the full inspection equipment of the valve core of the automobile solenoid valve, the bottom illumination assembly includes a linear sliding seat linearly connected to the frame, a rotary drive is provided on the linear sliding seat, and a light-carrying seat is connected to the power end of the rotary drive, the linear sliding seat is connected to the linear drive device, and the linear sliding seat is driven by the linear drive device so that the light-carrying seat is in the detection position and the waiting position for material collection, and the light-carrying seat in the detection position is driven by the rotary drive so that the valve core placement position of the light-carrying seat is on the transport track.

[0013] In the full inspection equipment for the valve core of the automobile solenoid valve, the full inspection equipment also includes a material tray unit having a loading tray position for the valve core to be inspected and a material tray position for the inspected valve core. The valve core to be inspected placed on the loading tray position of the valve core to be inspected is transported to the valve core correction assembly by a loading robot, and the inspected valve core placed on the bottom lighting assembly is transported to the inspected valve core material tray position by a unloading robot.

[0014] In the full inspection equipment for the valve core of the automobile solenoid valve, the material tray unit includes a material tray rack located beside the frame, on which the material tray rack is provided with adjacently distributed loading tray positions for the valve core to be inspected and the material tray positions for the inspected valve core, on which an empty tray stacking position is provided between the loading tray positions for the valve core to be inspected and the material tray positions for the inspected valve core, and when the loading tray on the loading tray position for the valve core to be inspected is empty, it is moved to the empty tray stacking position by a first loading tray moving device, and the empty loading tray on the empty tray stacking position is moved to the inspected valve core material tray position by a second loading tray moving device.

[0015] The present invention also provides a detection method for the automobile solenoid valve core full detection device, and the detection method comprises the following steps: S1, placing the valve core to be inspected in the valve core correction assembly, and the valve core correction assembly makes the radial hole of the valve core in an upright state, and moves the valve core to the radial hole detection position, and the radial hole detection assembly detects the radial hole; S2, making the valve core after the S1 detection at the valve core waiting to be taken position, the rotary disc type mechanical handling assembly of the composite detection unit makes the valve core be taken and released at the appearance detection assembly, the appearance detection assembly performs appearance detection on the valve core, and the rotary disc type mechanical handling assembly makes the valve core at the axial hole detection assembly and performs axial hole detection; S3, making the bottom illumination component of the surface foreign matter detection unit be in the detection position, and making the valve core after the S2 detection be released on the bottom illumination component, the top detection component performs appearance detection on the valve core, and classifies and packs the valve core after the detection into qualified and unqualified products.

[0016] The advantages of the present invention are: The parameter requirements of various parts of the valve core are tested in sequence through the radial hole detection unit, the composite detection unit and the surface foreign matter detection unit. The units are transferred and transported by a robotic arm. It is fully automated by only placing the tray containing the valve core on the tray unit. No human intervention is required during the process, which improves the detection efficiency and reduces the detection deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the material tray unit of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the valve core correction component of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the radial hole detection component of the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the first appearance detection component of the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the first and second axial hole detection components of the present invention.

[0023] Figure 7 It is a schematic diagram of the structure of the second appearance detection component of the present invention.

[0024] Figure 8 It is a schematic diagram of the structure of the surface foreign matter detection unit of the present invention.

[0025] Fig. 9 This is a schematic diagram of the structure of the defective product transfer robot of the present invention.

[0026] Fig.10 It is a schematic diagram of the structure of the turntable type mechanical handling assembly of the present invention.

[0027] Fig.11 It is a schematic diagram of the valve core structure of the present invention.

[0028] In the figure, the frame 1, the radial hole detection unit 2, the valve core correction component 21, the valve core bearing seat 211, the valve core rotation drive manipulator 212, the first detection sensor 213, the radial hole detection component 22, the valve core bearing sliding seat 221, the radial hole detection stop gauge 222, the first lifting drive device 223, the composite detection unit 3, the turntable mechanical handling component 31, the shape detection component 32, the shape detection bearing seat 321, the shape detection moving frame 322, the shape detection device 323, the shape frame drive device 324, the axial hole detection component 33, the axial hole detection seat 331, the axial hole stop gauge 332, the axial hole seat drive device 333, the surface foreign matter detection unit 4, the top detection component 41, the bottom illumination component 42, the linear sliding seat 421, the rotation driver 422, the illumination bearing seat 423, the linear drive device 424, the tray unit 5, the first tray moving device 53, the second tray moving device 54, and the valve core 6. DETAILED DESCRIPTION

[0029] The following are specific embodiments of the invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0030] Example 1

[0031] like Figure 1-Figure 11 As shown, the full inspection equipment of the valve core of the automobile solenoid valve includes a frame 1, on which are arranged a radial hole inspection unit 2, a composite inspection unit 3 and a surface foreign matter inspection unit 4 for inspecting the valve core in sequence according to the inspection sequence.

[0032] That is, the solenoid valve core is transferred by the robot between the various detection units, and passes through multiple tests of the radial hole detection unit 2, the composite detection unit 3 and the surface foreign matter detection unit 4 in sequence, and the workpieces with substandard processing dimensions are classified. During the process, the valve core's station transfer, angle position adjustment and detection instrument movement are all carried out automatically without human intervention, which ensures the efficiency of product detection and avoids the situation where human-caused detection errors are caused.

[0033] The radial hole detection unit 2 includes a valve core correction component 21 that drives the lying valve core to be detected to rotate to a set angle so that the radial hole of the valve core is in an upright state, and also includes a radial hole detection component 22 having a radial hole detection position and a valve core material removal position.

[0034] A radial hole connected to the shaft hole is provided on the side arc surface of the solenoid valve core. When detecting the radial hole, the valve core needs to be rotated to a predetermined angle so that the radial hole can be aligned with the stop gauge of the radial hole detection equipment.

[0035] The composite detection unit 3 comprises a rotary disc type mechanical handling assembly 31 for obtaining at least a valve core at a position to be taken from the valve core, and at least one shape detection assembly 32 and at least one axial hole detection assembly 33 which are sequentially distributed along the handling track direction of the rotary disc type mechanical handling assembly 31 .

[0036] The composite detection unit 3 is designed to arrange the detection components in sequence around a circular turntable, and the turntable is used instead of the moving track of the manipulator, which greatly saves the space occupied by the track facilities.

[0037] The surface foreign matter detection unit 4 includes a top detection component 41, and a bottom lighting component 42 having a detection position and a material position to be taken. When the bottom lighting component 42 is in the detection position, the turntable mechanical handling component 31 releases the valve core to be detected onto the bottom lighting component 42 and the top detection component 41 is located directly above the bottom lighting component 42.

[0038] In this embodiment, the valve core correction assembly 21 includes at least one valve core bearing seat 211 and at least one valve core rotation driving manipulator 212 corresponding to the valve core bearing seat 211, and a first detection sensor 213 for detecting the radial hole position is provided on the valve core bearing seat 211.

[0039] A V-shaped bearing groove for horizontally placing the valve core is provided on the valve core bearing seat 211. A positioning plate with an arc-shaped notch is provided at one end of the bearing groove. The end face of the large-diameter cylindrical part of the valve core is pressed against the positioning plate, and the small-diameter cylindrical part at one end of the valve core passes through the arc-shaped notch to the other end of the positioning plate. A push rod driven by a cylinder is provided at the other end of the bearing groove. The push rod axially presses against the end of the valve core to ensure that the large cylinder of the valve core is pressed against the positioning plate, thereby determining the position of the valve core in the bearing groove, so that the axial position of the radial hole is aligned with the first detection sensor 213.

[0040] At this time, the valve core in the valve core supporting seat 211 is just at the rotation axis of the valve core rotation driving manipulator 212, and the two clamping blocks that open and close on the left and right close to clamp the valve core through the positioning plate to the small cylinder at the outer end, and rotate at the same time so that the photoelectric sensor is aligned with the first detection sensor 213 of the rotation axis to test the circumferential surface of the valve core and locate the angle of the radial hole of the valve core.

[0041] In this embodiment, the first detection sensor 213 is a photoelectric sensor and is arranged at an angle. When the detection light of the first detection sensor 213 passes through the radial hole, the valve core rotation drives the manipulator 212 to continue rotating the valve core and make the radial hole upright.

[0042] Due to the influence of the range of movement of the manipulator, the first detection sensor 213 can only be set on the side of the valve core support seat 211 for avoidance. Since the stop gauge for subsequent detection of the radial hole is vertically set above, the detection angle of the first detection sensor 213 needs to be pre-set. After the photoelectric sensor detects the radial hole of the valve core, it is rotated according to the preset angle of the first detection sensor 213 to ensure that the radial hole of the valve core is vertically facing upward.

[0043] In this embodiment, the radial hole detection assembly 22 includes a valve core bearing sliding seat 221 that slides relative to the frame 1. The valve core bearing sliding seat 221 has at least a radial hole detection position and a valve core waiting position. A radial hole detection check gauge 222 is also provided on the frame 1. The radial hole detection check gauge 222 is connected to the first lifting drive device 223; when the valve core bearing sliding seat 221 carries the valve core and moves to the radial hole detection position, the radial hole detection check gauge 222 detects the radial hole.

[0044] After the radial hole of the valve core is positioned at an angle, the manipulator uses a suction cup to vertically extract and move it to the valve core bearing sliding seat 221 on the valve core to be taken. The valve core bearing sliding seat 221 is also provided with a V-shaped bearing groove, and blocking plates are provided at both ends of the groove to form a slot similar to the shape of the valve core, which fully positions the valve core in the valve core bearing sliding seat 221. Subsequently, the valve core bearing sliding seat 221 is moved along the track by a conveyor belt driven by a motor to the radial hole detection position directly below the radial hole detection stop gauge 222. At this time, the radial hole is directly opposite to the radial hole detection stop gauge 222, and the first lifting drive device 223 drives the radial hole detection stop gauge 222 to descend and probe into the radial hole for detection. After the detection is completed, the radial hole detection stop gauge 222 rises upward, and the valve core bearing sliding seat 221 continues to move along the guide rail to the edge of the turntable of the turntable type mechanical handling assembly 31.

[0045] The manipulator used to transfer the valve core between the valve core correction component 21 and the radial hole detection component 22 is also specially provided with a vertically installed positioning rod. When the manipulator descends to absorb the valve core, the positioning rod will be inserted into the radial hole of the valve core to prevent the valve core from rotating during the transportation process of the manipulator.

[0046] The first lifting drive device 223 may be any one of a pneumatic cylinder, an oil cylinder or a linear motor.

[0047] In this embodiment, there are two groups of shape detection components 32 and are defined as the first shape detection component and the second shape detection component, and there are two groups of axial hole detection components 33 and are defined as the first axial hole detection component and the second axial hole detection component. The first shape detection component, the first axial hole detection component, the second shape detection component and the second axial hole detection component are distributed in sequence in the direction of the conveying track.

[0048] The detection assembly includes a first shape detection assembly, a first axial hole detection assembly, a second shape detection assembly and a second axial hole detection assembly, and is distributed in the above order around the turntable of the turntable type mechanical handling assembly 31. Among them, the first shape detection assembly is a CCD detector, and the second shape detection assembly is a laser detector.

[0049] The bottom of the turntable is driven and controlled by a motor. There are multiple manipulators evenly distributed around the turntable and extending radially outward. A suction cup is installed at the end of the manipulator. A linear cylinder is connected to the turntable at the root of the manipulator, which is responsible for moving the manipulator that rotates to the top of the detection component downward to absorb the valve core.

[0050] The unloaded manipulator on the turntable first comes to the top of the valve core supporting sliding seat 221 as the turntable rotates. After the manipulator reaches down to absorb the valve core, it comes to the top of the first appearance detection component again with the turntable, places the valve core at the detection position and then rises. After the detection is completed, it absorbs the valve core again and rotates to the next detection station to cycle the above-mentioned actions of the manipulator. There is no reciprocating movement in the operation process of the manipulator, and it has the same lifting and lowering absorption rhythm, which can greatly improve the rotation efficiency of the valve core detection.

[0051] In this embodiment, the shape detection component 32 includes a shape detection support seat 321 fixed to the frame 1, and a shape detection mobile frame 322 that moves relative to the shape detection support seat 321. A shape detection device 323 is provided on the shape detection mobile frame 322, and the shape detection mobile frame 322 is connected to the shape frame driving device 324.

[0052] The frame 1 is provided with a linear guide rail for the appearance detection moving frame 322 to move, and the appearance detection moving frame 322 is controlled by a linear motor to move, and a CCD camera or a laser signal transceiver is installed at each end of the appearance detection moving frame 322. The appearance detection bearing seat 321 is set on the appearance detection moving frame 322, and a support plate for suspending the valve core is set on the appearance detection bearing seat 321, so that the support plate can reduce the horizontal obstruction of the valve core as much as possible, and a groove is provided on the support plate to stabilize the valve core from moving.

[0053] At this time, the cameras at both ends of the shape detection mobile frame 322 are mirror-distributed on both sides of the positioned valve core, and the shape frame driving device 324 drives the camera to move in the direction of the valve core axis, pausing to shoot at multiple path points, and taking images of both sides of the valve core for comparison to determine the symmetry of the valve core.

[0054] Among them, the lower end of the shape detection support seat 321 is also provided with a guide rail fixed on the frame 1 and perpendicular to the moving direction of the shape detection moving frame 322, which is used to translate and adjust the distance between the shape detection support seat 321 and the turntable, so as to realize the movement between the detection position and the valve core hinge position.

[0055] The axial hole detection assembly 33 includes at least one axial hole detection seat 331 and at least one axial hole go gauge 332 corresponding to the axial hole detection seat 331 . The axial hole go gauge 332 is connected to the axial hole seat driving device 333 .

[0056] The axial hole stop gauge 332 is set at one end of the positioned valve core, and the probe points to one end face of the valve core along the axis. During the detection process, it is driven by the cylinder at the lower end of the axial hole stop gauge 332 and moves along the linear guide rail to extend the probe into the axial hole of the valve core.

[0057] In this embodiment, the bottom illumination assembly 42 includes a linear sliding seat 421 which is linearly slidably connected to the frame 1, a rotary driver 422 is provided on the linear sliding seat 421, and a lighting support seat 423 is connected to the power end of the rotary driver 422, the linear sliding seat 421 is connected to a linear driving device 424, and the linear sliding seat 421 is driven by the linear driving device 424 so that the lighting support seat 423 is in the detection position and the waiting position for material collection, and the lighting support seat 423 in the detection position is driven by the rotary driver 422 so that the valve core placement position of the lighting support seat 423 is on the transport track.

[0058] Since the bottom illumination assembly 42 needs to receive the valve core transferred from the second axial hole detection assembly at the turntable during operation, and later transport the valve core to the qualified product turntable or the defective product recycling area, the process involves three groups of manipulators. In order to allow each group of manipulators to have room to move, a self-rotating and linearly movable structure is set at the lower end of the illumination support seat 423.

[0059] A linear guide rail is provided between the turntable and the unloading area, and a linear sliding seat 421 is slidably provided on the guide rail and driven by a linear driving device 424. An illuminated bearing seat 423 is installed on the linear sliding seat 421 through a rotating driver 422, so that the valve core can be transported between the turntable and the unloading area. When the bearing seat moves to one end of the turntable, the rotating driver 422 drives the illuminated bearing seat 423 to rotate a certain angle, so that the valve core placement groove on the illuminated bearing seat 423 is aligned with the manipulator on the turntable, so as to receive the valve core placed by the manipulator.

[0060] In this embodiment, the full inspection equipment also includes a material tray unit 5 having a material tray position for a valve core to be inspected and a material tray position for an inspected valve core. The valve core to be inspected placed on the material tray position for the valve core to be inspected is transported to the valve core correction assembly 21 by a loading robot, and the inspected valve core placed on the bottom lighting assembly 42 is transported to the material tray position for the inspected valve core by a unloading robot.

[0061] A guide rail bracket for moving a loading robot is set up between the loading tray of the valve core to be inspected and the valve core correction assembly 21. The robot is driven by a motor. A suction cup connected to the cylinder is installed at the end of the robot. The root of the robot is fixed to a linear cylinder module that moves up and down, which is used to realize the picking and placing of the valve core.

[0062] The unloading robot is divided into two transport paths: the qualified transport rail and the defective transport rail. The setting of the robot in the qualified transport rail is the same as that of the loading robot. Both of them suck up the horizontally placed valve core and place it horizontally back into the groove of the qualified material tray. The robot in the defective transport rail uses a clamp instead of a suction cup, and a 90° flipping mechanism is added to the robot. After the robot clamps the horizontally placed valve core, it flips it 90° so that the valve core is in a vertical state and then inserted into the hole groove of the defective material tray.

[0063] The valve core is mainly composed of a long cylinder, with a conical end at one end of the main body, a circular groove at the other end, and an axial hole with a smaller diameter at the center of the groove bottom. There are three large cylinders concentric with the main cylinder distributed on the arc surface of the valve core, and a radial hole is opened on the middle cylinder to communicate with the small axial hole. The two suction cups on the manipulator are adsorbed on the two large cylinders near the end, and the clamp manipulator is clamped on the conical end of the valve core.

[0064] In this embodiment, the material tray unit 5 includes a material tray rack 51 located beside the frame 1, and the material tray rack 51 is provided with adjacently distributed loading tray positions for valve cores to be inspected and material tray positions for inspected valve cores, and the material tray rack 51 is provided with an empty tray stacking position 52 located between the loading tray position for valve cores to be inspected and the material tray position for inspected valve cores, and when the loading tray on the loading tray position for valve cores to be inspected is empty, it is moved to the empty tray stacking position 52 by a first loading tray moving device 53, and the empty loading tray on the empty tray stacking position 52 is moved to the inspected valve core material tray position by a second loading tray moving device 54.

[0065] A stacking position for materials to be inspected is provided beside the material tray position for the valve core to be inspected. The first tray moving device 53 moves the material tray carrying the valve core to be inspected to the material tray position for the valve core to be inspected. A stacking position for materials that have been inspected is provided beside the material tray position for the inspected valve core. The second tray moving device 54 moves the material tray carrying the inspected valve core to the stacking position for the inspected material.

[0066] The stacking position is provided with a stacking bracket of the same size as the material tray. Pneumatic plugs are provided on the two opposite beams on the lower side of the bracket. The plugs are inserted into the grooves on the side of the material tray to lift the material tray at the bottom layer and thus all the material trays. The lower side of the material tray rack 51 is provided with a first tray moving device 53 and a second tray moving device 54 that can move between adjacent tray positions. The tray moving devices are operated by rails and motors.

[0067] When the palletizing bracket is storing trays, the tray moving device moves the tray to the lower end of the palletizing bracket, lifts up the trays in the palletizing bracket through the placed trays, and unlocks and fixes the trays. After the bottom tray is pushed to the same height as the pneumatic plug, the pneumatic plug pops out and fixes it again. When the palletizing bracket is releasing trays, the tray moving device first supports all the trays stacked together at the lower end, and then drops down after the pneumatic plug touches. If one tray is released at a time, it pops out and fixes after the pneumatic plug is aligned with the groove of the second tray, and the tray moving device moves horizontally to take away the tray at the bottom.

[0068] Among them, a tray moving device is provided with two lifting platforms distributed in adjacent tray positions. When the tray moving device is translated, the two lifting platforms can transfer the tray area with the trays they support at the same time, thereby improving the transportation efficiency of the trays.

[0069] Full inspection process of solenoid valve core: S1, placing the valve core to be inspected on the valve core correction component 21, and the valve core correction component 21 makes the radial hole of the valve core in an upright state, and moves the valve core to the radial hole detection position, and the radial hole detection component 22 detects the radial hole; S2, the valve core after detection is placed at the valve core waiting position, the valve core is obtained and released to the appearance detection component 32 by the turntable mechanical handling component 31 of the composite detection unit 3, the appearance detection component 32 performs appearance detection on the valve core, and the turntable mechanical handling component 31 places the valve core at the axial hole detection component 33 and performs axial hole detection; S3, the bottom illumination component 42 of the surface foreign matter detection unit 4 is placed in the detection position, and the valve core detected by S2 is released on the bottom illumination component 42, the top detection component 41 performs appearance detection on the valve core, and the valve core after detection is classified into qualified and unqualified products and loaded on a tray.

[0070] Example 2

[0071] Based on the technical solution in Example 1, in order to improve the overall detection efficiency, the detection process is increased to be carried out simultaneously at two workstations.

[0072] Correspondingly, the manipulator used for the transfer of the valve core station in the process is equipped with two grabbing units at the same time, and the manipulator will grab two valve cores at the same time in one action. There are also two stations for simultaneous inspection during the inspection process. In the valve core radial hole correction and axial inspection process, due to the problem of operating space avoidance between the adjustment equipment and the inspection device, one of the bearing seats is set to be movable.

[0073] When the robot picks up two valve cores, the two valve cores are in an axially colinear state. It is very beneficial for the appearance detection equipment to uniformly test from the side of the valve core when placing them on the bearing seat, but it is not conducive to operations from the axial direction. Therefore, one of the bearing seats is set as a movable seat that can be radially translated, and it is staggered with the other bearing seat for adjustment and detection.

[0074] Before the bearing seat receives the valve core transported by the robot, the two bearing seats are axially aligned. After receiving the valve core, one of the bearing seats is moved along the guide rail by the cylinder to be offset from the other bearing seat by a certain position, and the axis of the valve core after translation is aligned with the valve core rotation driving robot 212 or the stop gauge for detecting the axial hole.

[0075] Of course, according to this idea, it is also possible to configure more than two workstations by using a movable bearing seat to make room for installing corresponding detection components.

[0076] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A full inspection device for a valve core of an automobile solenoid valve, comprising a frame (1), characterized in that: The frame (1) is provided with a radial hole detection unit (2), a composite detection unit (3) and a surface foreign matter detection unit (4) for sequentially detecting the valve core in a detection sequence; The radial hole detection unit (2) comprises a valve core correction component (21) that drives a lying valve core to be detected to rotate to a set angle so that the radial hole of the valve core is in an upright state, and also comprises a radial hole detection component (22) having a radial hole detection position and a valve core material removal position; The composite detection unit (3) comprises a turntable type mechanical handling component (31) for obtaining at least a valve core at a material position to be taken from the valve core, and at least one shape detection component (32) and at least one axial hole detection component (33) which are sequentially distributed along the direction of the handling track of the turntable type mechanical handling component (31); The surface foreign matter detection unit (4) comprises a top detection component (41), and a bottom illumination component (42) having a detection position and a material to be taken position; when the bottom illumination component (42) is in the detection position, the turntable-type mechanical handling component (31) releases the valve core to be detected onto the bottom illumination component (42), and the top detection component (41) is located directly above the bottom illumination component (42).

2. The full inspection equipment for automobile solenoid valve core according to claim 1 is characterized in that: The valve core correction component (21) comprises at least one valve core bearing seat (211) and at least one valve core rotation driving manipulator (212) corresponding to the valve core bearing seat (211), and a first detection sensor (213) for detecting the position of a radial hole is provided on the valve core bearing seat (211).

3. The full inspection equipment for automobile solenoid valve core according to claim 2 is characterized in that: The first detection sensor (213) is a photoelectric sensor and is arranged at an angle. When the detection light of the first detection sensor (213) passes through the radial hole, the valve core rotates to drive the manipulator (212) to continue rotating the valve core and make the radial hole stand upright.

4. The full inspection equipment for automobile solenoid valve core according to claim 1 is characterized in that: The radial hole detection assembly (22) comprises a valve core bearing sliding seat (221) sliding relative to the frame (1), the valve core bearing sliding seat (221) having at least a radial hole detection position and a valve core material waiting position, and a radial hole detection check gauge (222) is also provided on the frame (1), and the radial hole detection check gauge (222) is connected to the first lifting drive device (223); When the valve core bearing sliding seat (221) bears the valve core and moves to the radial hole detection position, the radial hole detection stop gauge (222) detects the radial hole.

5. The full inspection equipment for automobile solenoid valve core according to claim 1 is characterized in that: The shape detection components (32) have two groups and are defined as a first shape detection component and a second shape detection component. The axial hole detection components (33) have two groups and are defined as a first axial hole detection component and a second axial hole detection component. The first shape detection component, the first axial hole detection component, the second shape detection component and the second axial hole detection component are distributed in sequence in the direction of the transport track.

6. The full inspection equipment for automobile solenoid valve core according to claim 1 or 5, characterized in that: The shape detection assembly (32) comprises a shape detection bearing seat (321) fixed to the frame (1), and a shape detection moving frame (322) moving relative to the shape detection bearing seat (321), a shape detection device (323) being provided on the shape detection moving frame (322), and the shape detection moving frame (322) being connected to a shape frame driving device (324); The axial hole detection assembly (33) comprises at least one axial hole detection seat (331) and at least one axial hole stop gauge (332) corresponding to the axial hole detection seat (331); the axial hole stop gauge (332) is connected to the axial hole seat driving device (333).

7. The full inspection equipment for automobile solenoid valve core according to claim 1 is characterized in that: The bottom illumination assembly (42) comprises a linear sliding seat (421) linearly slidably connected to the frame (1); a rotary drive (422) is provided on the linear sliding seat (421); and a light-carrying seat (423) is connected to the power end of the rotary drive (422); the linear sliding seat (421) is connected to a linear drive device (424); the linear sliding seat (421) is driven by the linear drive device (424) so ​​that the light-carrying seat (423) is located at the detection position and the material-to-be-taken position; and the light-carrying seat (423) at the detection position is driven by the rotary drive (422) so that the valve core placement position of the light-carrying seat (423) is located on the transport track.

8. The full inspection equipment for automobile solenoid valve core according to claim 1 is characterized in that: The full inspection equipment further comprises a material tray unit (5) having a material tray position for a valve core to be inspected and a material tray position for an inspected valve core; the valve core to be inspected placed on the material tray position for the valve core to be inspected is transported to the valve core correction component (21) by a loading robot, and the inspected valve core placed on the bottom illumination component (42) is transported to the material tray position for the inspected valve core by a unloading robot.

9. The full inspection equipment for automobile solenoid valve core according to claim 8, characterized in that: The tray unit (5) comprises a tray rack located beside the frame (1), on which the tray rack is provided with adjacently distributed tray positions for loading trays of valve cores to be inspected and tray positions for inspected valve cores, on which an empty tray stacking position is provided between the tray positions for loading trays of valve cores to be inspected and the tray positions for inspected valve cores, and when the loading tray on the tray position for loading trays of valve cores to be inspected is empty, it is moved to the empty tray stacking position by a first tray moving device (53), and the empty loading tray on the empty tray stacking position is moved to the inspected valve core tray position by a second tray moving device (54).

10. The detection method of the full inspection equipment of the automobile solenoid valve core according to any one of claims 1 to 9, characterized in that: The detection method comprises the following steps: S1, placing the valve core to be inspected on the valve core correction component (21), wherein the valve core correction component (21) makes the radial hole of the valve core stand upright, and moves the valve core to the radial hole detection position, and the radial hole detection component (22) detects the radial hole; S2, making the valve core after the S1 detection at a valve core waiting position, taking the valve core and releasing it to the appearance detection component (32) through the turntable mechanical handling component (31) of the composite detection unit (3), the appearance detection component (32) performing an appearance detection on the valve core, and the turntable mechanical handling component (31) placing the valve core at the axial hole detection component (33) and performing an axial hole detection; S3, placing the bottom illumination component (42) of the surface foreign matter detection unit (4) in the detection position, and releasing the valve core after the S2 detection onto the bottom illumination component (42), performing an appearance detection on the valve core by the top detection component (41), and classifying and loading the valve core after the detection into qualified and unqualified products.

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