Engine valve seepage detection device

Abstract

The invention belongs to the technical field of engine valves, and particularly relates to an engine valve seepage detection device which comprises supporting rods, mounting tables are fixedly mounted on the upper portions of every two supporting rods, limiting supporting shells are fixedly mounted on the upper portions of the mounting tables, and a valve moving mechanism is arranged between the two limiting supporting shells. And a valve detection mechanism is arranged at the upper part of the mounting table. According to the engine valve seepage detection device, seepage detection is carried out on an engine valve through colored gas by arranging the valve detection mechanism, the valve is automatically placed in the valve detection mechanism by arranging the valve moving mechanism, and a detection camera of the valve detection mechanism is aligned with the lower part of a detection cylinder; and shooting the outlet of the detection cylinder to detect whether colored gas leaks through the outlet of the detection cylinder, if leakage occurs, the air tightness of the surface valve body cannot meet the requirement, and if no gas leakage is detected, the air tightness of the valve body is qualified.

Description

Technical Field

[0001] The present invention relates to the technical field of engine valves, and in particular to an engine valve seepage detection device. Background Art

[0002] The function of the engine valve is to specifically be responsible for inputting air into the engine and discharging the exhaust gas after combustion, which plays a decisive role in the normal operation of the engine. Therefore, in order to ensure that the engine valve after production has good performance, usually a tightness test, that is, a seepage detection work, is carried out on the engine valve before it is sold on the market.

[0003] When the existing engine valve seepage detection device conducts seepage detection on the engine valve, due to the relatively rapid detection work, the staff usually places the engine valve to be detected on the bottom plate to facilitate the rapid progress of the detection work. As a result, when too many engine valves are stacked above the bottom plate, it is very easy to cause chaos at the detection and processing site, and the staff needs to manually conduct the valve seepage detection, making it difficult to improve the detection efficiency. Summary of the Invention

[0004] Based on the existing technical problem that it is difficult to improve the detection efficiency because the staff needs to manually conduct the valve seepage detection, the present invention proposes an engine valve seepage detection device.

[0005] An engine valve seepage detection device proposed by the present invention includes support rods. An installation platform is fixedly installed on the upper part of every two support rods. A limit support shell is fixedly installed on the upper part of the installation platform. A valve moving mechanism is arranged between the two limit support shells, and a valve detection mechanism is arranged between the two installation platforms.

[0006] Preferably, the valve moving mechanism includes a lifting screw rod. The two ends of the lifting screw rod are respectively rotationally connected to the inner top surface of the limit support shell and the upper surface of the installation platform through ball bearings. The upper end of the lifting screw rod penetrates and extends out of the upper part of the limit support shell. A lifting motor is fixedly installed on the upper part of the limit support shell. The output end of the lifting motor is fixedly connected to the upper part of the lifting screw rod through a coupling.

[0007] Preferably, the valve moving mechanism includes a first right-angle commutator and a second right-angle commutator. Both the first right-angle commutator and the second right-angle commutator are fixedly installed on the ground. The lower end of the lifting screw rod penetrates and extends out of the lower part of the installation table. The input end of the first right-angle commutator is fixedly connected to the lower end of the lifting screw rod through a coupling. The output end of the first right-angle commutator is fixedly connected to a transmission rod through a coupling. One end of the transmission rod is fixedly connected to the input end of the second right-angle commutator. The output end of the second right-angle commutator is fixedly connected to the lower end of the other lifting screw rod.

[0008] Preferably, a lifting slider is threadedly connected to the threaded surface of the lifting screw rod. The outer surface of the lifting slider is slidably inserted into the inner side wall of the limit support shell. A mounting shell is fixedly installed on one side of a lifting slider. The inner top surface of the mounting shell is rotatably connected to a fixed shaft through a ball bearing. An active bevel gear is fixedly connected to the arc surface of the fixed shaft. The upper end of the fixed shaft penetrates and extends out of the upper part of the mounting shell. An adjustment motor is fixedly installed on the upper part of the mounting shell. The output end of the adjustment motor is fixedly connected to the upper end of the fixed shaft through a coupling. The opposite surfaces of the mounting shell and the other lifting slider are respectively rotatably connected to an adjustment screw rod through a ball bearing. One end of the adjustment screw rod penetrates and extends into the interior of the mounting shell. A passive bevel gear is fixedly connected to the arc surface of the adjustment screw rod extending into the interior of the mounting shell. The teeth of the passive bevel gear are engaged with the tooth grooves of the active bevel gear.

[0009] Preferably, an adjustment slider is threadedly connected to the threaded surface of the adjustment screw rod. A limit rod is fixedly connected to the opposite surfaces of the mounting shell and the lifting slider. The outer surface of the adjustment slider is slidably inserted into the arc surface of the limit rod. An adjustment sliding shell is fixedly installed on the lower part of the adjustment slider. The two inner side walls of the adjustment sliding shell are rotatably connected to a rotating screw rod through a ball bearing. A moving slider is threadedly connected to the threaded surface of the rotating screw rod. The outer surface of the moving slider is slidably inserted into the inner side wall of the adjustment sliding shell. One end of the rotating screw rod penetrates and extends out of one side of the adjustment sliding shell. A rotating motor is fixedly installed on one side of the adjustment sliding shell. The output end of the rotating motor is fixedly connected to one end of the rotating screw rod through a coupling.

[0010] Preferably, an electric telescopic rod is fixedly connected to the lower part of the moving slider. An electromagnet is fixedly installed on the lower part of the telescopic end of the electric telescopic rod. A valve body is magnetically connected to the lower part of the electromagnet. A sealing cover plate is also fixedly connected to the arc surface of the telescopic end of the electric telescopic rod. A sealing extrusion block is fixedly installed on the lower part of the sealing cover plate.

[0011] Preferably, the valve detection mechanism includes a support cross beam, both ends of the support cross beam are fixedly connected to opposite surfaces of the two support rods, a first conveyor belt is fixedly installed on the upper part of the support cross beam, a detection placement table is drivingly connected to the conveying surface of the first conveyor belt, a second conveyor belt is fixedly installed on the upper part of the support cross beam, a qualified valve placement table is drivingly connected to the conveying surface of the second conveyor belt, a third conveyor belt is fixedly installed on the upper part of the support cross beam, a non-qualified valve placement table is drivingly connected to the conveying surface of the third conveyor belt, support seats are fixedly installed at the lower parts of both ends of the first conveyor belt, the second conveyor belt and the third conveyor belt, and placement grooves are formed in the upper parts of the detection placement table, the qualified valve placement table and the non-qualified valve placement table.

[0012] Preferably, the valve detection mechanism includes a detection box, a support column is fixedly installed on the upper part of the support cross beam, a mounting seat is fixedly installed on the upper parts of the two support columns, the detection box is fixedly installed on the upper part of the mounting seat, a mounting hole is formed in the upper part of the detection box, a detection cylinder is fixedly connected to the inner side of the mounting hole, the inner side wall of the detection cylinder is in sliding contact with the inner wall of the valve body, the lower part of the detection cylinder penetrates and extends out of the interior of the detection box, and a detection camera is fixedly installed on the inner side wall of the detection box.

[0013] Preferably, an air pump is fixedly connected to one side surface of the detection box, a detection airbag is also fixedly connected to one side surface of the detection box, the input end of the air pump is fixedly connected to the output end of the detection airbag, the output end of the air pump is fixedly connected to a delivery pipe, one end of the delivery pipe is fixedly connected to the upper part of the sealing cover plate, and one end of the delivery pipe also penetrates and extends out of the lower surface of the sealing cover plate.

[0014] Preferably, a sealing groove is formed in the upper surface of the detection cylinder, a rubber sealing strip is fixedly connected to the inner side wall of the sealing groove, the outer surface of the sealing extrusion block is slidably inserted into the inner side wall of the sealing groove, and the lower surface of the sealing extrusion block is in extrusion contact with the rubber sealing strip.

[0015] The beneficial effects in the present invention are as follows: 1. By setting the valve detection mechanism, the seepage detection of the engine valve is realized through a gas with color, and the valve moving mechanism is set to automatically place the valve into the valve detection mechanism.

[0016] 2. By setting up an air pump to transport the colored gas in the detection airbag into the detection cylinder, and setting up an electric telescopic rod to move the valve body into the detection cylinder. The sealing cover plate, sealing extrusion block and sealing groove seal the detection cylinder. The detection camera is aligned with the lower part of the detection cylinder to take pictures of the outlet of the detection cylinder to detect whether there is colored gas leaking through the outlet of the detection cylinder. If there is a leak, it means that the airtightness of the valve body does not meet the requirements. If no gas leak is detected, it indicates that the airtightness of the valve body is qualified.

[0017] 3. By setting up a qualified valve placement table and an unqualified valve placement table, the valve moving mechanism moves the qualified and unqualified valve bodies into the placement grooves on the qualified valve placement table or the unqualified valve placement table respectively, placing the qualified and unqualified valve bodies separately, which facilitates the staff to distinguish qualified products. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of an engine valve seepage detection device proposed by the present invention; Figure 2 It is a three-dimensional view of the lifting screw structure of an engine valve seepage detection device proposed by the present invention; Figure 3 It is a three-dimensional view of the installation shell structure of an engine valve seepage detection device proposed by the present invention; Figure 4 It is a three-dimensional view of the adjusting sliding shell structure of an engine valve seepage detection device proposed by the present invention; Figure 5 It is a three-dimensional view of the air pump structure of an engine valve seepage detection device proposed by the present invention; Figure 6 It is a three-dimensional view of the rotating screw structure of an engine valve seepage detection device proposed by the present invention; Figure 7 It is a three-dimensional view of the detection box structure of an engine valve seepage detection device proposed by the present invention; Figure 8 It is a three-dimensional view of the electromagnet structure of an engine valve seepage detection device proposed by the present invention; Figure 9 It is a three-dimensional view of the detection cylinder structure of an engine valve seepage detection device proposed by the present invention; Figure 10 It is a three-dimensional view of the sealing groove structure of an engine valve seepage detection device proposed by the present invention.

[0019] In the figure: 1, support rod; 2, mounting table; 3, limit support shell; 4, lifting screw rod; 5, lifting motor; 6, first right-angle commutator; 7, second right-angle commutator; 8, transmission rod; 9, lifting slider; 10, mounting shell; 11, fixed shaft; 12, driving bevel gear; 13, adjusting motor; 14, adjusting screw rod; 15, driven bevel gear; 16, adjusting slider; 17, limit rod; 18, adjusting sliding shell; 19, rotating screw rod; 20, moving slider; 21, rotating motor; 22, electric telescopic rod; 23, electromagnet; 24, valve body; 25, sealing cover plate; 26, sealing extrusion block; 27, support cross beam; 28, first conveyor belt; 29, detection placement table; 30, second conveyor belt; 31, qualified valve placement table; 32, third conveyor belt; 33, unqualified valve placement table; 34, support seat; 35, placement groove; 36, detection box; 37, support column; 38, mounting seat; 39, mounting hole; 40, detection cylinder; 41, detection camera; 42, air pump; 43, detection airbag; 44, delivery pipe; 45, sealing groove; 46, rubber sealing strip. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Refer to Figure 1-10 , an engine valve seepage detection device, including a support rod 1. The upper parts of every two support rods 1 are fixedly installed with a mounting table 2. The upper part of the mounting table 2 is fixedly installed with a limit support shell 3. A valve moving mechanism is arranged between the two limit support shells 3, and a valve detection mechanism is arranged on the upper part of the mounting table 2.

[0022] The valve moving mechanism includes a lifting screw rod 4. The two ends of the lifting screw rod 4 are respectively rotationally connected to the inner top surface of the limit support shell 3 and the upper surface of the mounting table 2 through ball bearings. The upper end of the lifting screw rod 4 penetrates and extends out of the upper part of the limit support shell 3. The upper part of the limit support shell 3 is fixedly installed with a lifting motor 5. The output end of the lifting motor 5 is fixedly connected to the upper part of the lifting screw rod 4 through a coupling. The valve moving mechanism includes a first right-angle commutator 6 and a second right-angle commutator 7. Both the first right-angle commutator 6 and the second right-angle commutator 7 are fixedly installed on the ground. The lower end of the lifting screw rod 4 penetrates and extends out of the lower part of the mounting table 2. The input end of the first right-angle commutator 6 is fixedly connected to the lower end of the lifting screw rod 4 through a coupling. The output end of the first right-angle commutator 6 is fixedly connected to a transmission rod 8 through a coupling. One end of the transmission rod 8 is fixedly connected to the input end of the second right-angle commutator 7. The output end of the second right-angle commutator 7 is fixedly connected to the lower end of another lifting screw rod 4.

[0023] By setting the lifting motor 5 to drive the lifting screw 4 to rotate automatically, the transmission of one lifting screw 4 drives the other lifting screw 4 to rotate synchronously through the transmission of the first right-angle commutator 6, the transmission rod 8 and the second right-angle commutator 7, so that one motor drives the two lifting screws 4 to rotate synchronously.

[0024] The thread surface of the lifting screw 4 is threadedly connected with a lifting slider 9. The outer surface of the lifting slider 9 is slidably inserted into the inner side wall of the limit support shell 3. One side of a lifting slider 9 is fixedly installed with a mounting shell 10. The inner top surface of the mounting shell 10 is rotatably connected with a fixed shaft 11 through a ball bearing. The arc surface of the fixed shaft 11 is fixedly connected with a driving bevel gear 12. The upper end of the fixed shaft 11 penetrates and extends out of the upper part of the mounting shell 10. The upper part of the mounting shell 10 is fixedly installed with an adjusting motor 13. The output end of the adjusting motor 13 is fixedly connected with the upper end of the fixed shaft 11 through a coupling. The opposite surfaces of the mounting shell 10 and the other lifting slider 9 are respectively rotatably connected with an adjusting screw 14 through a ball bearing. One end of the adjusting screw 14 penetrates and extends into the interior of the mounting shell 10. The arc surface of the adjusting screw 14 extending into the interior of the mounting shell 10 is fixedly connected with a driven bevel gear 15. The teeth of the driven bevel gear 15 are engaged with the tooth grooves of the driving bevel gear 12.

[0025] The rotation of the two lifting screws 4 drives the two lifting sliders 9 to move up and down along the limit support shell 3, driving the adjusting screw 14 to move up and down stably. The set adjusting motor 13 drives the driving bevel gear 12 to rotate through the fixed shaft 11, driving the driven bevel gear 15 to rotate, and driving the adjusting screw 14 to rotate automatically.

[0026] The thread surface of the adjusting screw 14 is threadedly connected with an adjusting slider 16. The opposite surfaces of the mounting shell 10 and the lifting slider 9 are fixedly connected with a limiting rod 17. The outer surface of the adjusting slider 16 is slidably inserted into the arc surface of the limiting rod 17. The lower part of the adjusting slider 16 is fixedly installed with an adjusting sliding shell 18. The inner side walls of both sides of the adjusting sliding shell 18 are rotatably connected with a rotating screw 19 through a ball bearing. The thread surface of the rotating screw 19 is threadedly connected with a moving slider 20. The outer surface of the moving slider 20 is slidably inserted into the inner side wall of the adjusting sliding shell 18. One end of the rotating screw 19 penetrates and extends out of one side of the adjusting sliding shell 18. One side of the adjusting sliding shell 18 is fixedly installed with a rotating motor 21. The output end of the rotating motor 21 is fixedly connected with one end of the rotating screw 19 through a coupling.

[0027] The rotation of the adjusting screw 14 drives the adjusting slider 16 to slide left and right along the adjusting screw 14 for position adjustment. The set limiting rod 17 limits the adjusting slider 16 to prevent the limiting slider from rotating. The set rotating motor 21 drives the rotating screw 19 to rotate automatically, so that the moving slider 20 moves back and forth along the moving screw.

[0028] The lower part of the moving slider 20 is fixedly connected with an electric telescopic rod 22. The lower part of the telescopic end of the electric telescopic rod 22 is fixedly installed with an electromagnet 23. The lower part of the electromagnet 23 is magnetically connected with a valve body 24. The arc surface of the telescopic end of the electric telescopic rod 22 is also fixedly connected with a sealing cover plate 25. The lower part of the sealing cover plate 25 is fixedly installed with a sealing extrusion block 26.

[0029] The provided electric telescopic rod 22 drives the electromagnet 23 to move up and down, so that the electromagnet 23 adsorbs the valve body 24, and the valve body 24 is stably fixed at the lower part of the electric telescopic rod 22. The mutual cooperation of the lifting slider 9, the adjusting slider 16 and the moving slider 20 drives the valve body 24 to move into the valve detection mechanism through the electromagnet 23 for detection. The provided sealing cover plate 25 and the sealing extrusion block 26 seal other openings of the valve detection mechanism to prevent air leakage from other openings during the detection process of the valve detection mechanism, resulting in inaccurate detection effects.

[0030] The valve detection mechanism includes a support cross beam 27. The two ends of the support cross beam 27 are respectively fixedly connected with the opposite surfaces of two support rods 1. The upper part of the support cross beam 27 is fixedly installed with a first conveyor belt 28. A detection placement table 29 is drivingly connected to the conveying surface of the first conveyor belt 28. The upper part of the support cross beam 27 is fixedly installed with a second conveyor belt 30. A qualified valve placement table 31 is drivingly connected to the conveying surface of the second conveyor belt 30. The upper part of the support cross beam 27 is fixedly installed with a third conveyor belt 32. An unqualified valve placement table 33 is drivingly connected to the conveying surface of the third conveyor belt 32. Support seats 34 are fixedly installed at the lower parts of both ends of the first conveyor belt 28, the second conveyor belt 30 and the third conveyor belt 32. Placement grooves 35 are opened in the upper parts of the detection placement table 29, the qualified valve placement table 31 and the unqualified valve placement table 33.

[0031] By providing the qualified valve placement table 31 and the unqualified valve placement table 33, the valve moving mechanism moves the qualified and unqualified valve bodies 24 into the placement grooves 35 on the qualified valve placement table 31 or the unqualified valve placement table 33 respectively, and places the qualified and unqualified valve bodies 24 separately, which is convenient for the staff to distinguish qualified products. When all the valve bodies 24 on the detection placement table 29 are detected, the provided first conveyor belt 28 moves the new detection placement table 29 to the set position to continue the seepage detection of the valve body 24. The provided second conveyor belt 30 conveys the qualified valve placement table 31 filled with qualified valve bodies 24 away, and moves the empty qualified valve placement table 31 to the detection position for the placement of qualified valve bodies 24. The provided third conveyor belt 32 conveys the unqualified valve placement table 33 filled with unqualified valve bodies 24 away, and moves the empty unqualified valve placement table 33 to the detection position for the placement of unqualified valve bodies 24.

[0032] The valve detection mechanism includes a detection box 36, which is fixedly installed on the upper part of the installation table 2. There is an installation hole 39 at the upper part of the detection box 36. The inner side of the installation hole 39 is fixedly connected with a detection cylinder 40. The inner side wall of the detection cylinder 40 is in sliding contact with the inner wall of the valve body 24. The lower part of the detection cylinder 40 penetrates and extends out of the interior of the detection box 36. A detection camera 41 is fixedly installed on the inner side wall of the detection box 36.

[0033] By arranging a detection camera 41 in the detection box 36, setting the detection camera 41 to aim at the lower part of the detection cylinder 40, and making the detection camera 41 aim at the lower air outlet of the detection cylinder 40, it is detected whether there is gas leaking through the outlet of the detection cylinder 40.

[0034] A sealing groove 45 is formed on the upper surface of the detection cylinder 40. The inner side wall of the sealing groove 45 is fixedly connected with a rubber sealing strip 46. The outer surface of the sealing extrusion block 26 is slidably inserted into the inner side wall of the sealing groove 45. The lower surface of the sealing extrusion block 26 is in extrusion contact with the rubber sealing strip 46.

[0035] By arranging the sealing groove 45, after the electric telescopic rod 22 drives the valve body 24 to insert into the interior of the detection cylinder 40, the sealing cover plate 25 on the electric telescopic rod 22 is in extrusion contact with the upper surface of the detection cylinder 40, so that the sealing extrusion block 26 below the sealing cover plate 25 is inserted into the sealing groove 45 on the detection cylinder 40, and the sealing extrusion block 26 extrudes the rubber sealing strip 46 in the sealing groove 45. The cooperation seals the detection cylinder 40 to prevent gas from leaking from the upper opening of the detection cylinder 40.

[0036] An air pump 42 is fixedly connected to one side surface of the detection box 36. A detection airbag 43 is also fixedly connected to one side surface of the detection box 36. The input end of the air pump 42 is fixedly connected to the output end of the detection airbag 43. The output end of the air pump 42 is fixedly connected to a delivery pipe 44. One end of the delivery pipe 44 is fixedly connected to the upper part of the sealing cover plate 25, and one end of the delivery pipe 44 also penetrates and extends out of the lower surface of the sealing cover plate 25.

[0037] The colored gas stored in the detection airbag 43 is transported into the detection cylinder 40 sealed by the sealing cover plate 25, the sealing extrusion block 26 and the valve body 24 through the delivery pipe 44 by the air pump 42, and it is detected by the detection camera 41 whether there is colored gas leaking from the outlet sealed by the valve body 24. Working principle: First, place the valve body 24 to be detected in the placement groove 35 on the upper part of the detection placement table 29. Then, start the valve moving mechanism to move the valve body 24 into the valve detection mechanism for detection. Start the lifting motor 5 to drive a lifting screw rod 4 to rotate. Through the transmission of the first right-angle commutator 6, the transmission rod 8, and the second right-angle commutator 7, the two lifting screw rods 4 rotate synchronously, driving the two adjusting sliders 16 to move up and down synchronously, driving the electromagnet 23 to move up and down. Start the adjusting motor 13 to drive the driving bevel gear 12 to rotate through the fixed shaft 11. The rotation of the driving bevel gear 12 drives the driven bevel gear 15 to drive the adjusting screw rod 14 to rotate, driving the adjusting slider 16 to move left and right along the adjusting screw rod 14. The limiting rod 17 limits the adjusting screw rod 14 to prevent rotation, driving the electromagnet 23 to move left and right. Start the rotating motor 21 to drive the rotating screw rod 19 to rotate, driving the moving slider 20 to move back and forth along the moving screw rod, driving the electromagnet 23 to move back and forth. Start the electric telescopic rod 22 to drive the electromagnet 23 and the sealing cover plate 25 to move up and down. Start the lifting motor 5 to drive the electromagnet 23 to move to a suitable height. Then, through the mutual cooperation of the adjusting motor 13 and the rotating motor 21, drive the electromagnet 23 to move left and right and back and forth, move to above the valve body 24 on the detection placement table 29. Start the electromagnet 23 and start the electric telescopic rod 22 to make the electromagnet 23 contact the valve body 24 for adsorption. Then, start the lifting motor 5, the adjusting motor 13, and the rotating motor 21 to cooperate with each other to drive the electromagnet 23 to drive the valve body 24 to move above the detection cylinder 40. Then, start the lifting motor 5 and the electric telescopic rod 22 again to insert the valve body 24 into the detection cylinder 40, and make the sealing extrusion block 26 at the lower part of the sealing cover plate 25 insert into the sealing groove 45 on the detection cylinder 40, so that the sealing extrusion block 26 extrudes the rubber sealing strip 46 in the sealing groove 45, and cooperate with each other to seal the detection cylinder 40 to prevent gas from leaking from the upper opening of the detection cylinder 40. Start the air pump 42 to transport the colored gas stored in the detection airbag 43 to the detection cylinder 40 sealed by the sealing cover plate 25, the sealing extrusion block 26, and the valve body 24 through the delivery pipe 44. The detection camera 41 performs image recognition on the air outlet at the lower part of the detection cylinder. If no colored gas leakage is detected, it indicates that the valve body 24 is qualified. Then, start the lifting motor 5, the adjusting motor 13, and the rotating motor 21 to move the valve body 24 into the placement groove 35 on the qualified valve placement table 31, disconnect the electromagnet 23, and leave the qualified valve body 24 in the placement groove 35. If colored gas leakage is detected, it indicates that the valve body 24 is unqualified. Then, start the lifting motor 5, the adjusting motor 13, and the rotating motor 21 to move the valve body 24 into the placement groove 35 on the unqualified valve placement table 33, disconnect the electromagnet 23, and leave the unqualified valve body 24 in the placement groove 35, which facilitates the staff to distinguish qualified products.Perform the seepage detection on all valve bodies 24 repeatedly in this way. After all the valve bodies 24 on the detection placement table 29 are detected, the first conveyor belt 28 moves the new detection placement table 29 filled with valve bodies 24 to be detected to the detection position to continue the seepage detection of the valve bodies 24. The second conveyor belt 30 conveys away the qualified valve placement table 31 filled with qualified valve bodies 24 and moves the empty qualified valve placement table 31 to the detection position for storing the qualified valve bodies 24. The provided third conveyor belt 32 conveys away the unqualified valve placement table 33 filled with unqualified valve bodies 24 and moves the empty unqualified valve placement table 33 to the detection position for storing the unqualified valve bodies 24.,

[0038] As mentioned above, the above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. An engine valve seepage detection device, comprising a support rod (1), characterized in that: A mounting platform (2) is fixedly mounted on the upper part of each of the two support rods (1), a limited support shell (3) is fixedly mounted on the upper part of the mounting platform (2), a valve moving mechanism is arranged between the two limited support shells (3), and a valve detection mechanism is arranged between the two mounting platforms (2); The valve detection mechanism realizes the action of performing seepage detection on the engine valve by using the colored gas; The valve moving mechanism realizes the action of automatically placing the valve into the valve detection mechanism.

2. An engine valve seepage detection device according to claim 1, characterized in that: The valve moving mechanism comprises a lifting screw (4), the two ends of which are rotatably connected to the inner top surface of the limit support shell (3) and the upper surface of the mounting platform (2) via ball bearings respectively; the upper end of the lifting screw (4) penetrates through and extends out of the upper part of the limit support shell (3); a lifting motor (5) is fixedly mounted on the upper part of the limit support shell (3); and the output end of the lifting motor (5) is fixedly connected to the upper part of the lifting screw (4) via a coupling.

3. An engine valve seepage detection device according to claim 2, characterized in that: The valve movement mechanism comprises a first right-angle commutator (6) and a second right-angle commutator (7), the first right-angle commutator (6) and the second right-angle commutator (7) are both fixedly mounted on the ground, the lower end of the lifting screw (4) passes through and extends out of the lower part of the mounting platform (2), the input end of the first right-angle commutator (6) is fixedly connected to the lower end of the lifting screw (4) via a coupling, the output end of the first right-angle commutator (6) is fixedly connected to a transmission rod (8) via a coupling, one end of the transmission rod (8) is fixedly connected to the input end of the second right-angle commutator (7), and the output end of the second right-angle commutator (7) is fixedly connected to the lower end of another lifting screw (4).

4. The engine valve seepage detection device according to claim 3, characterized in that: The threaded surface of the lifting screw (4) is threadedly connected to a lifting slider (9), the outer surface of the lifting slider (9) is slidably plugged into the inner side wall of the limit support shell (3), a mounting shell (10) is fixedly installed on one side of the lifting slider (9), the inner top surface of the mounting shell (10) is rotatably connected to a fixed shaft (11) via a ball bearing, the circular arc surface of the fixed shaft (11) is fixedly connected to a driving bevel gear (12), the upper end of the fixed shaft (11) passes through and extends out of the upper part of the mounting shell (10), and the upper part of the mounting shell (10) is fixedly installed with an adjusting electric The adjusting motor (13) is fixedly connected to the upper end of the fixed shaft (11) through a coupling, and the mounting shell (10) and the other lifting slider (9) are rotatably connected to the opposite surfaces thereof through ball bearings. One end of the adjusting screw (14) penetrates and extends into the interior of the mounting shell (10), and the arc surface of the adjusting screw (14) extending into the interior of the mounting shell (10) is fixedly connected to a passive bevel gear (15), and the gear teeth of the passive bevel gear (15) mesh with the tooth grooves of the active bevel gear (12).

5. The engine valve seepage detection device according to claim 4, characterized in that: The threaded surface of the adjusting screw (14) is threadedly connected with an adjusting slider (16); the opposing surfaces of the mounting shell (10) and the lifting slider (9) are fixedly connected with a limiting rod (17); the outer surface of the adjusting slider (16) is slidably plugged with the arc surface of the limiting rod (17); an adjusting sliding shell (18) is fixedly installed at the lower part of the adjusting slider (16); the inner walls of both sides of the adjusting sliding shell (18) are rotatably connected with rotating screws (19) through ball bearings; the threaded surface of the rotating screw (19) is threadedly connected with a moving slider (20); the outer surface of the moving slider (20) is slidably plugged with the inner wall of the adjusting sliding shell (18); one end of the rotating screw (19) penetrates and extends out of one side of the adjusting sliding shell (18); a rotating motor (21) is fixedly installed on one side of the adjusting sliding shell (18); the output end of the rotating motor (21) is fixedly connected to one end of the rotating screw (19) through a coupling.

6. The engine valve seepage detection device according to claim 5, characterized in that: The lower portion of the movable slider (20) is fixedly connected to an electric telescopic rod (22), the lower portion of the telescopic end of the electric telescopic rod (22) is fixedly mounted with an electromagnet (23), the lower portion of the electromagnet (23) is magnetically connected to a valve body (24), the arc surface of the telescopic end of the electric telescopic rod (22) is also fixedly connected to a sealing cover plate (25), and the lower portion of the sealing cover plate (25) is fixedly mounted with a sealing extrusion block (26).

7. An engine valve seepage detection device according to claim 6, characterized in that: The valve detection mechanism comprises a support crossbeam (27), the two ends of the support crossbeam (27) are respectively fixedly connected to the opposite surfaces of the two support rods (1), a first conveyor belt (28) is fixedly installed on the upper part of the support crossbeam (27), a detection placement platform (29) is drivingly connected to the conveying surface of the first conveyor belt (28), and a second conveyor belt (30) is fixedly installed on the upper part of the support crossbeam (27), and a qualified valve placement platform (31) is drivingly connected to the conveying surface of the second conveyor belt (30). ), a third conveyor belt (32) is fixedly mounted on the upper part of the support crossbeam (27), the conveying surface of the third conveyor belt (32) is drivingly connected to a failed valve placement platform (33), support seats (34) are fixedly mounted on the lower parts of both ends of the first conveyor belt (28), the second conveyor belt (30) and the third conveyor belt (32), and placement grooves (35) are provided on the upper parts of the detection placement platform (29), the qualified valve placement platform (31) and the failed valve placement platform (33).

8. The engine valve seepage detection device according to claim 7, characterized in that: The valve detection mechanism comprises a detection box (36), a support column (37) is fixedly mounted on the upper part of the support crossbeam (27), a mounting seat (38) is fixedly mounted on the upper part of the two support columns (37), the detection box (36) is fixedly mounted on the upper part of the mounting seat (38), a mounting hole (39) is opened on the upper part of the detection box (36), a detection cylinder (40) is fixedly connected to the inner side of the mounting hole (39), the inner side wall of the detection cylinder (40) is in sliding contact with the inner wall of the valve body (24), the lower part of the detection cylinder (40) passes through and extends out of the interior of the detection box (36), and a detection camera (41) is fixedly mounted on the inner side wall of the detection box (36).

9. The engine valve seepage detection device according to claim 8, characterized in that: An air pump (42) is fixedly connected to one side surface of the detection box (36), and a detection air bag (43) is also fixedly connected to one side surface of the detection box (36). The input end of the air pump (42) is fixedly connected to the output end of the detection air bag (43), and the output end of the air pump (42) is fixedly connected to a delivery pipe (44), one end of the delivery pipe (44) is fixedly connected to the upper part of the sealing cover plate (25), and one end of the delivery pipe (44) also penetrates and extends out of the lower surface of the sealing cover plate (25).

10. The engine valve seepage detection device according to claim 9, characterized in that: The upper surface of the detection cylinder (40) is provided with a sealing groove (45), the inner side wall of the sealing groove (45) is fixedly connected with a rubber sealing strip (46), the outer surface of the sealing extrusion block (26) is slidably plugged into the inner side wall of the sealing groove (45), and the lower surface of the sealing extrusion block (26) is in extrusion contact with the rubber sealing strip (46).

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