Automatic detection device for valve shaft

Abstract

The invention relates to the technical field of valve shaft detection, in particular to an automatic valve shaft detection device which comprises a machine body, a detection table fixedly connected to the upper end of the machine body, and a control end installed on one side of the detection table through a plurality of connecting rods. The detection assembly comprises two displacement sensor detection assemblies which are symmetrically arranged, the two displacement sensor detection assemblies are arranged in a cross shape in a surrounding mode, and a detection V-shaped tool used for containing a valve shaft is arranged between the two displacement sensor detection assemblies. According to the automatic valve shaft detection device, the whole automatic design is adopted, feeding, detection and material receiving are integrated, the overall automation degree is high, and compared with an existing detection mode that a micrometer is manually used, the automatic valve shaft detection device has the advantages that the detection efficiency is improved, and the detection cost is reduced. The problems that misoperation and misjudgment are prone to occurring when a micrometer is manually used for measurement, and rapid and automatic production cannot be achieved are solved.

Description

Technical Field

[0001] The invention relates to the technical field of valve shaft detection, in particular to an automatic valve shaft detection device. Background Art

[0002] With the rapid development of the automobile industry, the requirements for engine performance are getting higher and higher. As one of the core components of the engine, the working state of the valve directly affects the engine's power output and fuel economy. Traditional valve shaft detection mainly relies on manual operation.

[0003] At present, valve shaft inspection is mostly done manually using a micrometer. Manual measurement is not only inefficient, but also difficult to ensure the accuracy and consistency of inspection. Although there are some automated inspection equipment on the market, these equipment often have the following problems: First, the detection accuracy is not high and cannot meet the needs of high-precision detection; Second, the equipment structure is complex and the maintenance cost is high; Third, the operation is complicated and requires professional personnel to operate.

[0004] Therefore, a valve shaft automatic detection device is needed to improve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a valve shaft automatic detection device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A valve shaft automatic detection device, an automatic valve shaft detection device, including a body, the upper end of the body is fixedly connected to a detection platform, one side of the detection platform is installed with a control end through a plurality of connecting rods, and also includes: a detection component, the detection component includes two groups of symmetrically arranged displacement sensor detection components, the two groups of displacement sensor detection components are arranged in a cross shape, and a detection V-shaped tooling for placing the valve shaft is arranged between the two groups of displacement sensor detection components, the displacement sensor detection component detects the valve shaft and transmits an electrical signal to the control end; a feeding component, the feeding component is arranged on one side of the detection platform, and a material dividing structure is also arranged on the feeding component, which is used to separate the conveyed materials to realize interval loading, and a load-bearing positioning structure is arranged on one side of the feeding component for positioning and placing the valve shaft; a material receiving and conveying component, the material receiving and conveying component is arranged on the side opposite to the feeding component The feeding assembly conveys the valve shaft after inspection, and a group of blowing nozzles for blowing the valve shaft is arranged on one side of the material receiving and conveying assembly, so as to realize the screening of qualified and defective valve shafts; the material grabbing assembly, the material grabbing assembly and the control end are located on the same side, and the material grabbing assembly includes a manipulator structure and a linear module, the manipulator structure is displaced in the horizontal direction driven by the linear module, the manipulator structure can move vertically to synchronously grab the valve shaft on the bearing positioning structure and the detection V-shaped tooling, and move the valve shaft to the detection assembly and the material receiving and conveying assembly during horizontal displacement; the material receiving assembly, the material receiving assembly is arranged on the side of the machine body and is adjacent to the material receiving and conveying assembly, and is used for receiving and storing the screened valve shafts; the pneumatic detection assembly, the pneumatic detection assembly includes a lifting frame arranged inside the machine body, and a plurality of pneumatic probes are arranged on the lifting frame.

[0007] As a preferred solution of the present invention, the detection component includes a detection cylinder fixedly installed on the detection platform, the output end of the detection cylinder is fixedly connected to a mounting plate, the mounting plate is connected to a clamping seat by bolts, a displacement sensor is fixedly installed on the clamping seat, the displacement sensor is driven to move under the action of the output end of the detection cylinder, and the displacement sensor is electrically connected to the control end.

[0008] As a preferred solution of the present invention, the feeding assembly includes a feeding rack fixedly connected to the detection table, a baffle for blocking materials is fixedly connected to one side of the upper end of the feeding rack, a roller shaft is arranged between the two sides of the feeding rack, a feeding belt is arranged between the two roller shafts, a driving motor a is installed on one side of the feeding rack, and the driving motor a is connected to the end of the roller shaft on one side to realize the driving transmission of the feeding belt.

[0009] As a preferred solution of the present invention, the material dividing structure includes a material blocking gate plate fixedly connected to the upper end of the feeding rack, and a material dividing cylinder is installed on the material blocking gate plate, and the conveyed material is blocked by the action of the end of the material dividing cylinder. The load-bearing and positioning structure includes a material receiving V-shaped tooling, and an extension plate adjacent to the end of the feeding belt is fixedly connected to one side of the upper end of the V-shaped tooling, and a pneumatic push rod is installed on one side of the upper end of the V-shaped tooling, and the valve shaft at the upper end of the V-shaped tooling is pressed and positioned by the pneumatic push rod, and a block is connected to one side of the upper end of the V-shaped tooling by bolts.

[0010] As a preferred solution of the present invention, the upper ends of the V-shaped material receiving tool and the V-shaped detection tool are both provided with a groove for placing the valve shaft.

[0011] As a preferred solution of the present invention, the material receiving and conveying assembly includes a material receiving and conveying frame, with conveying rollers installed at both ends of the material receiving and conveying frame, a material receiving conveyor belt is arranged between the conveying rollers at both ends, a driving motor b is installed on one side of the material receiving and conveying frame, and the driving motor b is connected to the end of the roller to realize the driving transmission of the material receiving conveyor belt; the material receiving assembly includes a material receiving piece, the material receiving piece is located at the outer edge of the material receiving and conveying belt and the upper end is flush with the material receiving and conveying belt, the middle part of the material receiving piece is divided into a qualified material receiving tray and a defective material receiving tray by a partition, and the blowing nozzle is located on the inner side of the material receiving and conveying belt, and the two blowing nozzles are respectively arranged corresponding to the qualified material receiving tray and the defective material receiving tray.

[0012] As a preferred solution of the present invention, the linear module includes a fixed frame fixedly connected to the detection table, the upper end of the fixed frame is connected to a transverse frame by bolts, the middle part of the transverse frame is rotatably connected to a lead screw, a servo motor is installed at one end of the transverse frame, and the output end of the servo motor is docked with the end of the lead screw; the manipulator structure includes a slider threadedly connected to the lead screw, a plate body is fixedly connected to one side of the slider, a lifting cylinder is fixedly installed on the upper end of the plate body, the output end of the lifting cylinder is fixedly connected to the mounting frame, and double-axis cylinders are installed on both sides of the lower end of the mounting frame, and the output ends of the double-axis cylinders are connected to clamps.

[0013] As a preferred solution of the present invention, there are two pneumatic probes on the pneumatic component, and the two pneumatic probes are respectively arranged to penetrate the detection V-shaped tooling and the material connection V-shaped tooling. Each of the pneumatic probes is located directly below the valve shaft, and the pneumatic probes are floatingly lifted and lowered under the action of the lifting frame.

[0014] As a preferred solution of the present invention, an air source processor is installed on the side of the body, and an external air source is connected to the air source processor through the air source processor. The air source processor is connected to a plurality of solenoid valves through pipelines, and the plurality of solenoid valves are respectively connected to a plurality of cylinders through air pipes.

[0015] As a preferred solution of the present invention, the control end includes a control end shell, on which are disposed a plurality of sensor controllers, the plurality of sensor controllers being electrically connected to the plurality of displacement sensors respectively, a touch screen and a plurality of buttons being also mounted on the control end shell, an audible and visual alarm being mounted on the upper end of the control end shell, a processor being disposed inside the control end shell, and the processor being electrically connected to the touch screen, the audible and visual alarm and the solenoid valve.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention adopts an overall automated design, integrating material feeding, detection, and material connection, with a high overall degree of automation. Compared with the existing detection method using a manual micrometer, it solves the problem that manual micrometer measurement is prone to misoperation and misjudgment, and cannot achieve rapid and automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a first perspective stereogram of the present invention; Figure 2 It is a second viewing angle stereogram of the present invention; Figure 3 It is a structural schematic diagram of the detection platform of the present invention; Figure 4 A top view of the present invention; Figure 5 is a side view of the present invention; Figure 6 For the present invention Figure 1 The enlarged view of point A in the middle; Figure 7 For the present invention Figure 1 Enlarged view of point B in the middle.

[0018] In the figure: body 1, detection table 2, feeding rack 3, baffle 4, servo motor 5, horizontal rack 6, control end shell 7, touch screen 8, sound and light alarm 9, sensor controller 10, mounting rack 11, blowing nozzle 12, qualified product receiving tray 13, defective product receiving tray 14, support rack 15, receiving conveyor belt 16, detection V-shaped tooling 17, receiving parts 18, air source processor 19, solenoid valve 20, fixing rack 21, cooling fan 22, drive motor a23, feeding belt 24, material dividing cylinder 25, receiving V-shaped tooling 26, detection cylinder 27, displacement sensor 28, pneumatic ejector 29, slotting 30, pneumatic probe 31, material blocking gate 32, double-axis cylinder 33, clamping claw 34. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] See also Figure 1-7 , the present invention provides a technical solution: For example, please refer to Figure 1 , 2, 3, 4, 5, 6 and 7, a valve shaft automatic detection device, including a body 1, the upper end of the body 1 is fixedly connected to a detection platform 2, one side of the detection platform 2 is installed with a control end through a plurality of connecting rods, and also includes: a detection component, the detection component includes two groups of symmetrically arranged displacement sensor detection components, the two groups of displacement sensor detection components are arranged in a cross shape, and a detection V-shaped tooling 17 for placing the valve shaft is arranged between the two groups of displacement sensor detection components, the displacement sensor detection component detects the valve shaft and transmits an electrical signal to the control end; a feeding component, the feeding component is arranged on one side of the detection platform 2, and a dividing structure is also arranged on the feeding component for dividing the conveyed materials to realize interval loading, and a bearing positioning structure is arranged on one side of the feeding component for positioning and placing the valve shaft; a material receiving and conveying component, the material receiving and conveying component is arranged on the side opposite to the feeding component, and the feeding component The component conveys the valve shaft after inspection, and a group of blowing nozzles 12 for blowing the valve shaft is arranged on one side of the material receiving and conveying component, so as to realize the screening of qualified and defective valve shafts; the material grabbing component, the material grabbing component and the control end are located on the same side, and the material grabbing component includes a manipulator structure and a linear module, the manipulator structure is displaced in the horizontal direction under the drive of the linear module, and the manipulator structure can move vertically to synchronously grab the valve shaft on the bearing positioning structure and the detection V-shaped tooling 17, and move the valve shaft to the detection component and the material receiving and conveying component during horizontal displacement; the material receiving component, the material receiving component is arranged on the side of the body 1 and is adjacent to the material receiving and conveying component, and is used for receiving and storing the screened valve shafts; the pneumatic detection component, the pneumatic detection component includes a lifting frame arranged inside the body 1, and a plurality of pneumatic probes 31 are arranged on the lifting frame.

[0024] An air source processor 19 is installed on the side of the body 1, and an external air source is connected to the air source processor 19. The air source processor 19 is connected to a plurality of solenoid valves 20 through pipelines, and the plurality of solenoid valves 20 are respectively connected to a plurality of cylinders through air pipes. The control end includes a control end shell 7, and a plurality of sensor controllers 10 are arranged on the control end shell 7. The plurality of sensor controllers 10 are respectively electrically connected to a plurality of displacement sensors 28. A touch screen 8 and a plurality of buttons are also installed on the control end shell 7. An audible and visual alarm 9 is installed on the upper end of the control end shell 7. A processor is arranged inside the control end shell 7, and the processor is electrically connected to the touch screen 8, the audible and visual alarm 9 and the solenoid valve 20.

[0025] A number of valve shafts are placed on a feeding assembly, which is used to transport the valve shafts. A material dividing structure is provided on the feeding assembly, which can realize the intermittent transportation of the valve shafts and transport them to the load-bearing and positioning structure. The valve shafts are grabbed by the grabbing assembly and placed on the detection V-shaped tooling 17. The interval between the detection V-shaped tooling 17 and the load-bearing and positioning structure is the same as the interval between the manipulator structures on the grabbing assembly. During the inspection, the valve shaft is dimensionally inspected by the displacement sensor detection assembly to realize automated dimension inspection. After the inspection is completed, the valve shaft is grabbed by the grabbing assembly. After the inspection is completed, the inspection assembly generates an electrical signal to the controller, which controls the corresponding solenoid valve 20 to control the blowing nozzle 12 to blow the valve shaft into the receiving assembly to realize the screening of valve shafts of different qualities. The pneumatic inspection assembly is driven by the lifting frame to perform pneumatic inspection on the valve shaft.

[0026] Please refer to Figure 1 , 2 , 3, 4, 5, 6 and 7, the detection component includes a detection cylinder 27 fixedly mounted on the detection platform 2, the output end of the detection cylinder 27 is fixedly connected with a mounting plate, the mounting plate is connected with a clamping seat by bolts, a displacement sensor 28 is fixedly mounted on the clamping seat, the displacement sensor 28 is driven to move under the action of the output end of the detection cylinder 27, and the displacement sensor 28 is electrically connected to the control end.

[0027] The displacement sensor 28 is driven to move under the action of the output end of the detection cylinder 27. The valve shaft is tested for size through multiple displacement sensors 28 to achieve automated testing. Compared with the manual testing method using a micrometer, testing errors can be effectively avoided.

[0028] Please refer to Figure 1 , 2 The feeding assembly comprises a feeding frame 3 fixedly connected to the testing platform 2, a baffle plate 4 for blocking materials is fixedly connected to one side of the upper end of the feeding frame 3, rollers are arranged between the two sides of the feeding frame 3, a feeding belt 24 is arranged between the two rollers, a driving motor a23 is installed on one side of the feeding frame 3, and the driving motor a23 is docked with the end of one side of the roller to realize the driving transmission of the feeding belt 24, the material dividing structure comprises a baffle gate 32 fixedly connected to the upper end of the feeding frame 3, and a material dividing cylinder 25 is installed on the baffle gate 32, through the material dividing cylinder 2 The end action realizes the blocking of the conveyed material. The bearing and positioning structure includes a material receiving V-shaped fixture 26. An extension plate adjacent to the end of the feeding belt 24 is fixedly connected to one side of the upper end of the material receiving V-shaped fixture 26. A pneumatic ejector 29 is installed on one side of the upper end of the material receiving V-shaped fixture 26. The valve shaft on the upper end of the material receiving V-shaped fixture 26 is pressed and positioned by the pneumatic ejector 29. A stopper is connected to one side of the upper end of the material receiving V-shaped fixture 26 by bolts. A slot 30 for placing the valve shaft is provided on the upper ends of the material receiving V-shaped fixture 26 and the detection V-shaped fixture 17.

[0029] The driving motor a23 drives the feeding belt 24 to transport and drives the valve shaft to transport. Through the action of the material dividing cylinder 25, the transported valve shaft can be blocked to achieve intermittent loading. The V-shaped tooling 26 for receiving the material is used to place the valve shaft. The valve shaft is tightened by the pneumatic push rod 29 and the block. After tightening and positioning, it is detected by the pneumatic probe 31.

[0030] Please refer to Figure 1 , 2 , 3, 4, 5, 6 and 7, the material receiving and conveying assembly includes a material receiving and conveying frame, conveying rollers are installed at both ends of the material receiving and conveying frame, a material receiving conveyor belt 16 is arranged between the conveying rollers at both ends, a driving motor b is installed on one side of the material receiving and conveying frame, and the driving motor b is connected to the end of the roller to realize the driving transmission of the material receiving conveyor belt 16; the material receiving assembly includes a material receiving piece 18, the material receiving piece 18 is located at the outer edge of the material receiving conveyor belt 16 and the upper end is flush with the material receiving conveyor belt 16, the middle part of the material receiving piece 18 is divided into a qualified material receiving tray 13 and a defective material receiving tray 14 by a partition, the air blowing nozzle 12 is located on the inner side of the material receiving conveyor belt 16, and the two air blowing nozzles 12 are respectively arranged corresponding to the qualified material receiving tray 13 and the defective material receiving tray 14.

[0031] The receiving conveyor belt 16 conveys the valve shaft after inspection. During the conveying process, after different blowing nozzles 12 inspect the valve shaft, the controller receives the inspection electrical signal and controls the blowing of the blowing nozzles 12 by controlling different solenoid valves 20, so as to screen the inspected valve shaft and enter into different qualified product receiving trays 13 and defective product receiving trays 14.

[0032] Please refer to Figure 1 , 2 , 3, 4, 5, 6 and 7, the linear module includes a fixed frame 21 fixedly connected to the detection table 2, the upper end of the fixed frame 21 is connected to the transverse frame 6 by bolts, the middle part of the transverse frame 6 is rotatably connected to the lead screw, a servo motor 5 is installed at one end of the transverse frame 6, and the output end of the servo motor 5 is docked with the end of the lead screw; the manipulator structure includes a slider threadedly connected to the lead screw, a plate body is fixedly connected to one side of the slider, a lifting cylinder is fixedly installed on the upper end of the plate body, the output end of the lifting cylinder is fixedly connected to the mounting frame 11, and double-axis cylinders 33 are installed on both sides of the lower end of the mounting frame 11, and the output ends of the double-axis cylinders 33 are connected to clamps 34.

[0033] The servo motor 5 drives the lead screw to rotate, so that the slider drives the plate to slide and move, and drives the entire manipulator assembly to move horizontally. The clamping claw 34 on the manipulator assembly clamps the valve shaft under the action of the dual-axis cylinder 33 without manual intervention.

[0034] Please refer to Figure 1 , 2, 3, 4, 5, 6 and 7, there are two pneumatic probes 31 on the pneumatic assembly, and the two pneumatic probes 31 are respectively arranged to penetrate the detection V-shaped tooling 17 and the material receiving V-shaped tooling 26, and each pneumatic probe 31 is located directly below the valve shaft, and the pneumatic probe 31 is floatingly lifted and lowered under the action of the lifting frame.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic valve shaft detection device, comprising a body (1), the upper end of the body (1) being fixedly connected to a detection platform (2), one side of the detection platform (2) being equipped with a control end via a plurality of connecting rods, characterized in that: Also includes: A detection component, the detection component comprising two groups of symmetrically arranged displacement sensor detection components, the two groups of displacement sensor detection components being arranged in a cross shape, a detection V-shaped tooling (17) for placing a valve shaft being arranged between the two groups of displacement sensor detection components, the displacement sensor detection components detecting the valve shaft and transmitting an electrical signal to a control end; A feeding assembly, the feeding assembly being arranged on one side of the detection platform (2), the feeding assembly being further provided with a material dividing structure for dividing the conveyed materials to achieve intermittent feeding, and a bearing positioning structure being arranged on one side of the feeding assembly for positioning and placing the valve shaft; A material receiving and conveying assembly, the material receiving and conveying assembly being arranged on a side opposite to the material feeding assembly, the material feeding assembly conveying the valve shaft after inspection, a group of blowing nozzles (12) for blowing the valve shaft being arranged on one side of the material receiving and conveying assembly, thereby realizing the screening of qualified and defective valve shafts; A material grabbing assembly, the material grabbing assembly and the control end are located on the same side, and the material grabbing assembly includes a manipulator structure and a linear module, the manipulator structure is driven by the linear module to move in the horizontal direction, the manipulator structure can move in the vertical direction to synchronously grab the valve shaft on the bearing positioning structure and the detection V-shaped tooling (17), and move the valve shaft to the detection assembly and the material receiving and conveying assembly during horizontal displacement; A material receiving assembly, which is arranged on the side of the machine body (1) and adjacent to the material receiving and conveying assembly, and is used to receive and store the valve shafts after screening; A pneumatic detection component, the pneumatic detection component comprising a lifting frame arranged inside a machine body (1), and a plurality of pneumatic measuring heads (31) are arranged on the lifting frame.

2. The valve shaft automatic detection device according to claim 1, characterized in that: The detection assembly comprises a detection cylinder (27) fixedly mounted on the detection platform (2); the output end of the detection cylinder (27) is fixedly connected to a mounting plate, the mounting plate is connected to a clamping seat via bolts, a displacement sensor (28) is fixedly mounted on the clamping seat, the displacement sensor (28) is driven to move under the action of the output end of the detection cylinder (27), and the displacement sensor (28) is electrically connected to the control end.

3. The valve shaft automatic detection device according to claim 1 or 2, characterized in that: The feeding assembly comprises a feeding frame (3) fixedly connected to the detection table (2); a baffle (4) for blocking materials is fixedly connected to one side of the upper end of the feeding frame (3); a roller is arranged between the two sides of the feeding frame (3); a feeding belt (24) is arranged between the two rollers; a driving motor a (23) is installed on one side of the feeding frame (3); and the driving motor a (23) is connected to the end of the roller on one side to realize the driving transmission of the feeding belt (24).

4. The valve shaft automatic detection device according to claim 3, characterized in that: The material dividing structure comprises a material blocking gate (32) fixedly connected to the upper end of the feeding frame (3), and a material dividing cylinder (25) is installed on the material blocking gate (32), and the conveyed material is blocked by the movement of the end of the material dividing cylinder (25), and the bearing positioning structure comprises a material receiving V-shaped fixture (26), and an extension plate adjacent to the end of the feeding belt (24) is fixedly connected to one side of the upper end of the material receiving V-shaped fixture (26), and a pneumatic ejector (29) is installed on one side of the upper end of the material receiving V-shaped fixture (26), and the valve shaft at the upper end of the material receiving V-shaped fixture (26) is pressed and positioned by the pneumatic ejector (29), and a stopper is connected to one side of the upper end of the material receiving V-shaped fixture (26) by bolts.

5. The valve shaft automatic detection device according to claim 4, characterized in that: The upper ends of the material receiving V-shaped tooling (26) and the detection V-shaped tooling (17) are both provided with a slot (30) for placing the valve shaft.

6. The valve shaft automatic detection device according to any one of claims 1-2, 4-5, characterized in that: The material receiving and conveying assembly comprises a material receiving and conveying frame, with conveying rollers installed at both ends of the material receiving and conveying frame, a material receiving and conveying belt (16) is arranged between the conveying rollers at both ends, and a driving motor b is installed on one side of the material receiving and conveying frame, and the driving motor b is connected to the end of the roller to realize the driving transmission of the material receiving and conveying belt (16); The material receiving assembly comprises a material receiving piece (18), the material receiving piece (18) is located on the outer side of the material receiving conveyor belt (16) and the upper end is flush with the material receiving conveyor belt (16), the middle part of the material receiving piece (18) is divided into a qualified material receiving tray (13) and a defective material receiving tray (14) by a partition, and the air blowing nozzle (12) is located on the inner side of the material receiving conveyor belt (16), and the two air blowing nozzles (12) are respectively arranged corresponding to the qualified material receiving tray (13) and the defective material receiving tray (14).

7. The valve shaft automatic detection device according to claim 6, characterized in that: The linear module comprises a fixed frame (21) fixedly connected to the detection platform (2), the upper end of the fixed frame (21) is connected to a transverse frame (6) by bolts, the middle part of the transverse frame (6) is rotatably connected to a lead screw, one end of the transverse frame (6) is mounted with a servo motor (5), and the output end of the servo motor (5) is matingly connected to the end of the lead screw; The manipulator structure comprises a slider threadedly connected to a lead screw, one side of the slider is fixedly connected to a plate body, the upper end of the plate body is fixedly mounted with a lifting cylinder, the output end of the lifting cylinder is fixedly connected to a mounting frame (11), and dual-axis cylinders (33) are mounted on both sides of the lower end of the mounting frame (11), and the output end of the dual-axis cylinder (33) is connected to a clamping claw (34).

8. The valve shaft automatic detection device according to claim 6, characterized in that: There are two pneumatic probes (31) on the pneumatic assembly. The two pneumatic probes (31) are respectively disposed through the detection V-shaped tooling (17) and the material receiving V-shaped tooling (26). Each of the pneumatic probes (31) is located directly below the valve shaft. The pneumatic probes (31) are lifted and lowered in a floating manner under the action of the lifting frame.

9. The valve shaft automatic detection device according to any one of claims 1-2, 4-5 and 7-8, characterized in that: An air source processor (19) is installed on the side of the machine body (1), and an external air source is connected to the air source processor (19). The air source processor (19) is connected to a plurality of solenoid valves (20) via pipelines, and the plurality of solenoid valves (20) are respectively connected to a plurality of cylinders via air pipes.

10. The valve shaft automatic detection device according to claim 9, characterized in that: The control end comprises a control end housing (7), a plurality of sensor controllers (10) are arranged on the control end housing (7), the plurality of sensor controllers (10) are electrically connected to the plurality of displacement sensors (28), a touch screen (8) and a plurality of buttons are also installed on the control end housing (7), an audible and visual alarm (9) is installed on the upper end of the control end housing (7), a processor is arranged inside the control end housing (7), and the processor is electrically connected to the touch screen (8), the audible and visual alarm (9) and the solenoid valve (20).

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