Valve body and plug assembly assembling equipment for pilot valve and assembly line for pilot valve

Abstract

The invention relates to the technical field of pilot valve assembly, and provides valve body and plug assembly assembling equipment for a pilot valve and an assembly line for the pilot valve. The valve body and plug assembly assembling equipment for the pilot valve comprises a valve body overturning mechanism, a tightening mechanism and a valve body transferring mechanism. A tray is arranged on the conveying line, and a valve body is placed on the tray. And the valve body assembling hole in the tray faces upwards in an initial state. When the valve body and the plug assembly are assembled, the valve body turnover mechanism can turn over the valve body on the tray till the assembly hole faces downwards, and then the valve body is put back to the tray. The valve body transferring mechanism can transfer the overturned valve body to the tightening mechanism. The plug assembly which is assembled by the plug assembly assembly line is usually discharged to a tightening mechanism. And finally, the valve body and the plug assembly are assembled and tightened through a tightening mechanism. Therefore, the valve body and the plug assembly of the pilot valve do not need to be manually assembled, time and labor are saved, and the assembling efficiency of the valve body and the plug assembly can be greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pilot valve assembly, and particularly to an assembly device for a valve body and a plug assembly of a pilot valve and an assembly line for a pilot valve. Background Art

[0002] The mining pilot valve is a core component of the electro-hydraulic control reversing valve. When assembling the mining pilot valve, it is necessary to assemble and connect the plug assembly and the valve body. In the prior art, manual assembly is usually used. This method is time-consuming and laborious, and the assembly efficiency is low. Summary of the Invention

[0003] In view of the above technical problems, the present invention provides an assembly device for a valve body and a plug assembly of a pilot valve and an assembly line for a pilot valve.

[0004] In a first aspect of the present invention, there is provided an assembly device for a valve body and a plug assembly of a pilot valve, including: a valve body flipping mechanism disposed beside the conveyor line for clamping and flipping the valve body on the conveyor line tray; a tightening mechanism for tightening the valve body and the plug assembly; and a valve body transfer mechanism disposed beside the conveyor line and the tightening mechanism for transferring the valve body between the conveyor line tray and the tightening mechanism.

[0005] According to the assembly device for a valve body and a plug assembly of a pilot valve provided by the present invention, it further includes: a valve body lubricating mechanism disposed upstream of the tightening mechanism for lubricating the valve body; and the valve body transfer mechanism is used for transferring the valve body between the conveyor line tray, the valve body lubricating mechanism and the tightening mechanism.

[0006] According to the assembly device for a valve body and a plug assembly of a pilot valve provided by the present invention, the valve body flipping mechanism includes: a flipping valve body gripper; a flipping valve body clamping driving cylinder connected to the flipping valve body gripper for adjusting the clamping state of the flipping valve body gripper; a flipping valve body rotating driving cylinder connected to the flipping valve body gripper for driving the flipping valve body gripper to rotate; a flipping valve body transverse movement driving cylinder connected to the flipping valve body gripper for driving the flipping valve body gripper to move transversely; and a flipping valve body longitudinal movement driving cylinder connected to the flipping valve body gripper for driving the flipping valve body gripper to move longitudinally.

[0007] According to the assembly device for a valve body and a plug assembly of a pilot valve provided by the present invention, the valve body transfer mechanism includes: a transfer slide disposed between the conveyor line, the valve body lubricating mechanism and the tightening mechanism; a transfer gripper slidably connected to the transfer slide; a transfer clamping driving cylinder connected to the transfer gripper for adjusting the clamping state of the transfer gripper; and a transfer driving cylinder connected to the transfer gripper for driving the transfer gripper to slide along the transfer slide.

[0008] An assembly device for a valve body and a plug component of a pilot valve provided according to the present invention, the valve body lubricating mechanism includes: a placement table for placing the valve body; an oil spraying mechanism for spraying oil on the valve body.

[0009] An assembly device for a valve body and a plug component of a pilot valve provided according to the present invention further includes: a clamping and positioning mechanism disposed above the tightening mechanism and used for clamping and positioning the valve body.

[0010] The clamping and positioning mechanism includes: a positioning workbench provided with a perforation, and the perforation is adapted to pass through and place the plug component.

[0011] An assembly device for a valve body and a plug component of a pilot valve provided according to the present invention, the tightening mechanism includes: a tightening gun body correspondingly arranged below the perforation; a hexagon bit installed on the tightening gun body; a tightening gun lifting drive cylinder connected to the tightening gun body for driving the tightening gun body to move up and down; a tightening gun rotation drive cylinder connected to the tightening gun body for driving the tightening gun body to rotate.

[0012] An assembly device for a valve body and a plug component of a pilot valve provided according to the present invention, the tightening mechanism further includes: a first mounting block connected to the positioning workbench, and the tightening gun lifting drive cylinder is fixed to the first mounting block; a second mounting block, the second mounting block is connected to the tightening gun body through a connecting block, the tightening gun lifting drive cylinder is connected to the second mounting block, and the tightening gun lifting drive cylinder drives the tightening gun body to move up and down through the second mounting block.

[0013] According to the second aspect of the present invention, a pilot valve assembly line is provided, including the assembly device for the valve body and the plug component of the pilot valve as described above.

[0014] A pilot valve assembly line provided according to the present invention further includes: a pilot valve plug component assembly line, and the pilot valve plug component assembly line is arranged upstream of the assembly device for the valve body and the plug component of the pilot valve.

[0015] In the assembling equipment for the valve body and the plug assembly of the pilot valve provided by the present invention, it includes a valve body flipping mechanism, a tightening mechanism and a valve body transfer mechanism. In the entire assembling line for the pilot valve, it at least includes an assembling line for the plug assembly, the assembling equipment for the valve body and the plug assembly, and a conveying line. There are trays arranged on the conveying line, and valve bodies are placed on the trays. In the initial state, the assembling holes of the valve bodies on the trays face upwards. When assembling the valve body and the plug assembly, the valve body flipping mechanism can flip the valve body on the tray so that the assembling hole faces downwards, and then put the valve body back onto the tray. The valve body transfer mechanism can transfer the flipped valve body onto the tightening mechanism. The plug assemblies assembled by the plug assembly assembling line are usually fed onto the tightening mechanism. Finally, the tightening mechanism is used to assemble and tighten the valve body and the plug assembly. Thus, there is no need to manually assemble the valve body and the plug assembly of the pilot valve, which saves time and effort and can greatly improve the assembling efficiency of the valve body and the plug assembly.

[0016] Furthermore, in the assembling line for the pilot valve provided by the present invention, since it includes the assembling equipment for the valve body and the plug assembly of the pilot valve as described above, it also has the above-mentioned various advantages. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is the structural schematic diagram of the assembling line for the plug assembly of the pilot valve provided by the present invention Figure 1 .

[0019] Figure 2 is the structural schematic diagram of the assembling line for the plug assembly of the pilot valve provided by the present invention Figure 2 .

[0020] Figure 3 is the structural schematic diagram of the turntable mechanism in the assembling line for the plug assembly of the pilot valve provided by the present invention Figure 1 .

[0021] Figure 4 is the structural schematic diagram of the turntable mechanism in the assembling line for the plug assembly of the pilot valve provided by the present invention Figure 2 .

[0022] Figure 5 is the structural schematic diagram of the plug body tray and the tray sliding device of the plug body feeding unit in the assembling line for the plug assembly of the pilot valve provided by the present invention.

[0023] Figure 6It is the plug body grasping device of the plug body feeding unit in the pilot valve plug assembly line provided by the present invention.

[0024] Figure 7 It is the structural schematic diagram of the O-ring feeding and assembling unit in the pilot valve plug assembly line provided by the present invention.

[0025] Figure 8 It is the structural schematic diagram of the spring feeding and assembling unit in the pilot valve plug assembly line provided by the present invention.

[0026] Figure 9 It is the structural schematic diagram of the ball support feeding and assembling unit in the pilot valve plug assembly line provided by the present invention.

[0027] Figure 10 It is the structural schematic diagram of the grease injection unit in the pilot valve plug assembly line provided by the present invention.

[0028] Figure 11 It is the structural schematic of the discharging unit in the pilot valve plug assembly line provided by the present invention Figure 1 .

[0029] Figure 12 It is the structural schematic of the discharging unit in the pilot valve plug assembly line provided by the present invention Figure 2 .

[0030] Figure 13 It is the structural schematic diagram of the assembly equipment for the pilot valve body and the plug assembly in the assembly line for the pilot valve provided by the present invention.

[0031] Figure 14 It is the structural schematic diagram of the valve body flipping mechanism of the assembly equipment for the pilot valve body and the plug assembly in the assembly line for the pilot valve provided by the present invention.

[0032] Figure 15 It is the structural schematic diagram of the valve body transfer mechanism of the assembly equipment for the pilot valve body and the plug assembly in the assembly line for the pilot valve provided by the present invention.

[0033] Figure 16 It is the structural schematic diagram of the clamping and positioning mechanism of the assembly equipment for the pilot valve body and the plug assembly in the assembly line for the pilot valve provided by the present invention.

[0034] Figure 17 It is the structural schematic diagram of the tightening mechanism of the assembly equipment for the pilot valve body and the plug assembly in the assembly line for the pilot valve provided by the present invention.

[0035] Figure 18 It is the external structural schematic diagram of the plug assembly in the present invention.

[0036] Figure 19 It is the internal structural schematic diagram of the plug assembly in the present invention.

[0037] Reference numerals: 1. Plug body feeding unit; 11. Plug body tray; 12. Tray sliding device; 13. Plug body gripping device; 2. O-ring feeding and assembling unit; 21. O-ring feeding vibrating bowl; 22. O-ring linear feeder; 2301. Pick-up cone; 2302. Pick-up driving cylinder; 2303. Pushing sleeve; 2304. Pushing driving cylinder; 2401. O-ring transverse movement driving cylinder; 2402. O-ring longitudinal movement driving cylinder; 2501. Front sleeve; 2502. Mounting sleeve; 2503. Mounting driving cylinder; 2504. Flipping driving cylinder; 3. Spring feeding and assembling unit; 31. Spring feeding vibrating bowl; 3201. Pallet body; 3202. Pallet driving cylinder; 3203. Assembly column; 3204. Assembly driving cylinder; 33. Feeding reversing slide rail; 4. Ball support feeding and assembling unit; 41. Ball support feeding vibrating bowl; 42. Ball support linear feeder; 43. Ball support cutting-out driving cylinder; 44. Ball support assembling gripper; 45. Ball support gripper transverse movement driving cylinder; 46. Ball support gripper longitudinal movement driving cylinder; 5. Ceramic ball feeding and assembling unit; 6. Turntable mechanism; 61. Fixed plate; 62. Turntable body; 63. Driver; 64. Component carrier; 64. Assembly station; 7. Greasing unit; 71. Greasing cylinder; 72. Greasing position adjusting driving cylinder; 8. Unloading unit; 81. Unloading gripper; 82. Unloading transverse movement driving cylinder; 83. Unloading longitudinal movement driving cylinder; 9. Assembly equipment for pilot valve body and plug assembly; 91. Valve body flipping mechanism; 9101. Flipping valve body gripper; 9102. Flipping valve body gripping driving cylinder; 9103. Flipping valve body rotating driving cylinder; 9104. Flipping valve body transverse movement driving cylinder; 9105. Flipping valve body longitudinal movement driving cylinder; 92. Tightening mechanism; 9201. Tightening gun body; 9202. Hexagonal bit; 9203. Tightening gun lifting driving cylinder; 9204. Tightening gun rotating driving cylinder; 9205. First mounting block; 9206. Connecting block; 9207. Second mounting block; 93. Valve body transfer mechanism; 9301. Transfer slide; 9302. Transfer gripping driving cylinder; 9303. Transfer driving cylinder; 94. Valve body lubricating mechanism; 95. Clamping and positioning mechanism; 100. Positioning workbench; 110. Perforation; 120. Workbench sliding guide rail; 130. Workbench sliding cylinder; 200. Fixed positioning block; 210. Fixed block; 220. First positioning groove; 300. Movable positioning block; 310. Movable block; 320. Second positioning groove; 410. Adjusting guide rail; 420. Adjusting driving cylinder; 510. Photoelectric proximity sensor; 520. Stroke sensor. Detailed implementation mode

[0038] The following further describes in detail the implementation mode of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0039] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0040] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0041] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0042] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0043] The following will be combined with Figures 1 to 19 Describe an assembly device 9 for a valve body and a plug assembly for a pilot valve and an assembly line for a pilot valve provided by an embodiment of the present invention. It should be understood that the following is only a schematic embodiment of the present invention and does not constitute any special limitation to the present invention.

[0044] An embodiment of the first aspect of the present invention provides an assembly device 9 for a valve body and a plug assembly for a pilot valve, as Figure 13 shown, including: a valve body flipping mechanism 91, arranged beside the conveyor line, for clamping and flipping the valve body on the conveyor line tray; a tightening mechanism 92, for tightening the valve body and the plug assembly; a valve body transfer mechanism 93, arranged beside the conveyor line and the tightening mechanism 92, for transferring the valve body between the conveyor line tray and the tightening mechanism 92.

[0045] In the assembly equipment 9 for the valve body and plug assembly of the pilot valve provided by the present invention, it includes a valve body flipping mechanism 91, a tightening mechanism 92, and a valve body transfer mechanism 93. In the entire assembly line for the pilot valve, it at least includes a plug assembly line, an assembly equipment for the valve body and plug assembly, and a conveyor line. There are trays arranged on the conveyor line, and valve bodies are placed on the trays. In the initial state, the assembly holes of the valve bodies on the trays face upwards. When assembling the valve body and the plug assembly, the valve body flipping mechanism 91 can flip the valve body on the tray so that the assembly hole faces downwards, and then place the valve body back on the tray. The valve body transfer mechanism 93 can transfer the flipped valve body to the tightening mechanism 92. The plug assembly assembled by the plug assembly line is usually fed to the tightening mechanism 92. Finally, the tightening mechanism 92 is used to assemble and tighten the valve body and the plug assembly. Thus, there is no need to manually assemble the valve body and the plug assembly of the pilot valve, which saves time and effort and can greatly improve the assembly efficiency of the valve body and the plug assembly.

[0046] In an embodiment of the present invention, as Figure 13 shown, the assembly equipment 9 for the valve body and plug assembly of the pilot valve further includes: a valve body lubricating mechanism 94, arranged upstream of the tightening mechanism 92 for lubricating the valve body; the valve body transfer mechanism 93 is used to transfer the valve body between the conveyor line tray, the valve body lubricating mechanism 94, and the tightening mechanism 92.

[0047] For example, in an embodiment of the present invention, the valve body lubricating mechanism 94 includes: a placement table for placing the valve body; an oil spraying mechanism for spraying oil on the valve body.

[0048] During the assembly process, the valve body flipping mechanism 91 can flip the valve body on the tray so that the assembly hole faces downwards, and then place the valve body back on the tray. The valve body transfer mechanism 93 first transfers the flipped valve body to the placement table of the valve body lubricating mechanism 94, and the oil spraying mechanism sprays oil for lubricating the assembly hole of the valve body. After lubrication, the valve body transfer mechanism 93 transfers the valve body to the tightening mechanism 92. Finally, the tightening mechanism 92 is used to assemble and tighten the valve body and the plug assembly.

[0049] In an embodiment of the present invention, as Figure 14 shown, the valve body flipping mechanism 91 includes: a valve body flipping jaw 9101; a valve body flipping and gripping driving cylinder 9102, connected to the valve body flipping jaw 9101 for adjusting the gripping state of the valve body flipping jaw 9101; a valve body flipping and rotating driving cylinder 9103, connected to the valve body flipping jaw 9101 for driving the valve body flipping jaw 9101 to rotate; a valve body flipping and transverse movement driving cylinder 9104, connected to the valve body flipping jaw 9101 for driving the valve body flipping jaw 9101 to move transversely; a valve body flipping and longitudinal movement driving cylinder 9105, connected to the valve body flipping jaw 9101 for driving the valve body flipping jaw 9101 to move longitudinally.

[0050] The tilting valve body transverse movement drive cylinder 9104 and the tilting valve body longitudinal movement drive cylinder 9105 drive the tilting valve body gripper 9101 to move to the position of the tray on the conveying line. The tilting valve body clamping drive cylinder 9102 drives the tilting valve body gripper to clamp the valve body to be tilted on the tray. Subsequently, the tilting valve body rotation drive cylinder 9103 drives the tilting valve body gripper 9101 to tilt 180°, thereby driving the valve body clamped thereon to tilt 180°. The tilting valve body transverse movement drive cylinder 9104 and the tilting valve body longitudinal movement drive cylinder 9105 drive the tilting valve body gripper 9101 to move to the position of the tray on the conveying line. The tilting valve body clamping drive cylinder 9102 drives the tilting valve body to release the tilted valve body onto the tray.

[0051] In one embodiment of the present invention, as Figure 15 shown, the valve body transfer mechanism 93 includes: a transfer slide 9301 disposed between the conveying line, the valve body lubrication mechanism 94 and the tightening mechanism 92; a transfer gripper slidably connected to the transfer slide 9301; a transfer clamping drive cylinder 9302 connected to the transfer gripper for adjusting the clamping state of the transfer gripper; and a transfer drive cylinder 9303 connected to the transfer gripper for driving the transfer gripper to slide along the transfer slide 9301.

[0052] For example, as Figure 1 、 Figure 2 、 Figure 13 and Figure 15 shown, the transfer slide 9301 extends along the layout direction among the conveying line, the valve body lubrication mechanism 94 and the tightening mechanism 92. A transfer gripper is slidably arranged on the transfer slide 9301. The transfer clamping drive cylinder 9302 can adjust the clamping state of the transfer gripper, and the transfer drive cylinder 9303 can drive the transfer gripper to slide on the transfer slide 9301 so that the transfer gripper can transfer the valve body between the conveying line, the valve body lubrication mechanism 94 and the tightening mechanism 92.

[0053] Specifically, the transfer drive cylinder 9303 drives the transfer gripper to move along the transfer slide 9301 to a position close to the tray on the conveying line, and the transfer clamping drive cylinder 9302 drives the transfer gripper to clamp the tilted valve body. The transfer drive cylinder 9303 drives the transfer gripper to move along the transfer slide 9301 to the placement table of the valve body lubrication mechanism 94, and the transfer clamping drive cylinder 9302 drives the transfer gripper to place the valve body on the placement table for lubrication operation. The transfer clamping drive cylinder 9302 drives the transfer gripper to clamp the lubricated valve body. The transfer drive cylinder 9303 drives the transfer gripper to move along the transfer slide 9301 to the position of the tightening mechanism 92 for assembly and tightening operation.

[0054] In one embodiment of the present invention, as Figure 13 shown and Figure 16As shown, the assembly device 9 for the valve body and the plug assembly of the pilot valve further includes: a clamping and positioning mechanism 95, disposed above the tightening mechanism 92 and used for clamping and positioning the valve body; the clamping and positioning mechanism 95 includes: a positioning workbench 100, provided with a perforation 110, and the perforation 110 is adapted to pass through and place the plug assembly.

[0055] In an embodiment of the present invention, as Figure 17 shown, the tightening mechanism 92 includes: a tightening gun body 9201, correspondingly disposed below the perforation 110; a hexagon bit 9202, installed on the tightening gun body 9201; a tightening gun lifting drive cylinder 9203, connected to the tightening gun body 9201 and used to drive the tightening gun body 9201 to move up and down; a tightening gun rotation drive cylinder 9204, connected to the tightening gun body 9201 and used to drive the tightening gun body 9201 to rotate.

[0056] Further, in an embodiment of the present invention, the tightening mechanism 92 further includes: a first mounting block 9205, connected to the positioning workbench 100, and the tightening gun lifting drive cylinder 9203 is fixed to the first mounting block 9205; a second mounting block 9207, the second mounting block 9207 is connected to the tightening gun body 9201 through a connecting block 9206, the tightening gun lifting drive cylinder 9203 is connected to the second mounting block 9207, and the tightening gun lifting drive cylinder 9203 drives the tightening gun body 9201 to move up and down through the second mounting block 9207.

[0057] Specifically, as Figure 13 、 Figure 16 and Figure 17 shown, the valve body is placed and clamped on the upper side of the positioning workbench 100, and the plug assembly is placed in the perforation 110 of the positioning workbench 100 from bottom to top. The valve body and the plug assembly are placed correspondingly. The first mounting block 9205 is fixedly connected to the lower side of the positioning workbench. The tightening gun body 9201 is connected to the second mounting block 9207 through the connecting block 9206. The tightening gun lifting drive cylinder 9203 is connected to the second mounting block 9207, and it adjusts the height position of the tightening gun body by driving the second mounting block 9207 to move up and down. That is, under the driving action of the tightening gun lifting drive cylinder 9203, the second mounting block 9207, the connecting block 9206 and the tightening gun body 9201 can move up and down integrally. Among them, the tightening gun lifting drive cylinder 9203 may include two cylinders, and the two cylinders are symmetrically connected to the bottom of the second mounting block 9207.

[0058] During the assembly and tightening process, first clamp and position the valve body on the positioning workbench 100, and the tightening gun lifting drive cylinder 9203 drives the second mounting block 9207 to drive the hexagon bit 9202 on the tightening gun body 9201 to extend into the hexagon hole of the plug assembly; the tightening gun rotation drive cylinder 9204 drives the tightening gun body 9201 to drive the hexagon bit 9202 to rotate so that the plug assembly is tightly connected to the valve body.

[0059] In another embodiment of the present invention, as Figure 16 shown, the clamping and positioning mechanism 95 further includes: a fixed positioning block 200, which is fixedly connected to the positioning workbench 100; a movable positioning block 300, which is movably connected to the positioning workbench 100.

[0060] Wherein, a positioning and clamping area is formed between the fixed positioning block 200 and the movable positioning block 300, and the positioning and clamping area is used for placing the valve body of the pilot valve.

[0061] During the assembly process of the valve body of the pilot valve and the plug assembly, the valve body of the pilot valve is placed in the positioning and clamping area, and the position of the movable positioning block 300 is adjusted so that the valve body of the pilot valve is clamped between the fixed positioning block 200 and the movable positioning block 300. Furthermore, the plug assembly is then assembled and tightened. Through this structural arrangement, the assembly positioning accuracy of the valve body of the pilot valve can be improved, and thus the assembly efficiency of the pilot valve can be improved.

[0062] In addition, in this clamping and positioning mechanism 95, since the movable fixing block 210 can slide on the positioning workbench 100, the positioning and clamping area is an area with adjustable size. Therefore, this clamping and positioning mechanism 95 can be adapted to the assembly of pilot valves with different sizes.

[0063] In an embodiment of the present invention, the clamping and positioning mechanism 95 further includes: a workbench sliding drive mechanism. The workbench sliding drive mechanism is connected to the positioning workbench 100 and is used to drive the positioning workbench 100 to slide.

[0064] Furthermore, in an embodiment of the present invention, the workbench sliding drive mechanism includes: a workbench sliding guide rail 120, the positioning workbench 100 is slidably connected to the workbench sliding guide rail 120; a workbench sliding cylinder 130, the workbench sliding cylinder 130 is connected to the positioning workbench 100 and is used to drive the positioning workbench 100 to slide along the workbench sliding guide rail 120.

[0065] Specifically, as Figure 16As shown in the figure, a positioning workbench 100 is slidably connected to the workbench sliding guide rail 120. A workbench sliding cylinder 130 is connected to the positioning workbench 100. For example, the workbench sliding cylinder 130 includes, but is not limited to, an electric cylinder. The workbench sliding cylinder can drive the positioning workbench 100 to slide along the workbench sliding guide rail 120, and further drive the fixed positioning block 200 and the movable positioning block 300 on the positioning workbench 100 to move as a whole to adjust the position of the pilot valve to be assembled. For example, multiple sets of plug assemblies are assembled on the valve body of the pilot valve. A tightening device is fixedly installed on the assembly line. The position of the positioning workbench 100 can be adjusted through the workbench sliding cylinder 130, and then the position of the valve body of the pilot valve can be changed to use a set of tightening devices to assemble multiple sets of plug assemblies, saving the equipment cost for assembly.

[0066] In an embodiment of the present invention, a perforation 110 is provided on the positioning workbench 100. The perforation 110 is located in the positioning and clamping area and is adapted to allow the plug assembly of the pilot valve to pass through to be connected to the valve body of the pilot valve.

[0067] Furthermore, in an embodiment of the present invention, the perforation 110 is adapted to allow the plug assemblies of two sets of pilot valves to pass through.

[0068] For example, as Figure 13 and Figure 16 shown, a long strip-shaped perforation 110 is provided on the positioning workbench 100, and the long strip-shaped perforation 110 is adapted to position and pass through the plug assemblies of two sets of pilot valve bodies. That is to say, when assembling the pilot valve, first position and pass the two sets of plug assemblies into the perforation 110, then place the valve body correspondingly in the positioning and clamping area, clamp and fix it with the movable positioning block 300 and the fixed positioning block 200, and finally use the tightening device to tighten the plug assembly and the valve body.

[0069] In an embodiment of the present invention, the fixed positioning block 200 includes: a fixed block 210, and the fixed block 210 is fixedly connected to the positioning workbench 100; a first positioning groove 220, and the first positioning groove 220 is provided on the fixed block 210; the movable positioning block 300 includes: a movable block 310, and the movable block 310 is slidably connected to the positioning workbench 100; a second positioning groove 320, and the second positioning groove 320 is provided on the movable block 310.

[0070] Among them, the first positioning groove 220 and the second positioning groove 320 can position and clamp the diagonal of the valve body of the pilot valve.

[0071] For example, as Figure 16 shown, the valve body of the pilot valve is a cuboid structure. Both the first positioning groove 220 and the second positioning groove 320 are L-shaped positioning grooves, and the first positioning groove 220 and the second positioning groove 320 are respectively fitted and positioned at the diagonal positions of the valve body. Thus, the positioning reliability of the pilot valve body can be improved.

[0072] In an embodiment of the present invention, the clamping and positioning mechanism 95 further includes: a positioning and adjusting driving mechanism, which is connected to the movable block 310 and is used to drive the movable block 310 to slide so as to adjust the size of the positioning and clamping area.

[0073] Further, in an embodiment of the present invention, the positioning and adjusting driving mechanism includes: an adjusting guide rail 410, which is arranged on the positioning workbench 100, and the movable block 310 is slidably connected to the adjusting guide rail 410; an adjusting driving cylinder 420, which is connected to the movable block 310 and is used to drive the movable block 310 to slide along the adjusting guide rail 410.

[0074] As Figure 16 shown, an adjusting guide rail 410 is arranged on the positioning workbench 100, and the movable block 310 is slidably connected to the adjusting guide rail 410. The adjusting driving cylinder 420 is connected to the movable block 310 to drive the movable block 310 to slide along the adjusting guide rail 410 in a direction close to or away from the fixed block 210. Furthermore, the size of the positioning and clamping area is adjusted, and the valve body of the pilot valve can be clamped. Among them, the adjusting driving cylinder 420 includes but is not limited to an electric cylinder.

[0075] In an embodiment of the present invention, the clamping and positioning mechanism 95 further includes: a clamping detection device, which is used to detect the clamping and positioning states between the fixed positioning block 200 and the valve body of the pilot valve, and between the movable positioning block 300 and the valve body of the pilot valve.

[0076] Specifically, in an embodiment of the present invention, the clamping detection device includes: a photoelectric proximity sensor 510, which is installed on the movable block 310; a stroke sensor 520, which is installed on the adjusting driving cylinder 420 and is used to detect the stroke of the adjusting driving cylinder 420.

[0077] The photoelectric proximity sensor 510 can detect the positioning and clamping state between the valve body of the pilot valve and the fixed block 210, and the stroke sensor 520 can detect the stroke of the adjusting driving cylinder 420. Furthermore, based on the stroke of the valve body of the pilot valve, the positioning and clamping state between the movable block 310 and the valve body of the pilot valve can be determined. Thus, the clamping and positioning accuracy and reliability of the clamping and positioning mechanism 95 can be improved.

[0078] An embodiment of the second aspect of the present invention further provides an assembly line for a pilot valve, including the assembly equipment 9 for the valve body and plug assembly of the pilot valve as described above.

[0079] In an embodiment of the present invention, the pilot valve assembly line further includes: a pilot valve plug assembly line, which is disposed upstream of the pilot valve body and plug assembly device 9.

[0080] For example, as Figure 1 , Figure 2 , Figure 18 and Figure 19 shown, the pilot valve plug assembly line includes: a plug body feeding unit 1; an O-ring feeding and assembling unit 2, which is disposed downstream of the plug body feeding unit 1; a spring feeding and assembling unit 3, which is disposed downstream of the O-ring feeding and assembling unit 2; a ball support feeding and assembling unit 4, which is disposed downstream of the spring feeding and assembling unit 3; a ceramic ball feeding and assembling unit 5, which is disposed downstream of the ball support feeding and assembling unit 4; a turntable mechanism 6, which is provided with an assembly station 64 and can rotate between the plug body feeding and assembling unit, the O-ring feeding and assembling unit 2, the spring feeding and assembling unit 3, the ball support feeding and assembling unit 4, and the ceramic ball feeding and assembling unit 5 to adjust the position of the assembly station 64.

[0081] In the pilot valve plug assembly line provided by the present invention, it includes a plug body feeding unit 1, an O-ring feeding and assembling unit 2, a spring feeding and assembling unit 3, a ball support feeding and assembling unit 4, a ceramic ball feeding and assembling unit 5, and a turntable mechanism 6. The O-ring feeding and assembling unit 2 is disposed downstream of the plug body feeding unit 1; the spring feeding and assembling unit 3 is disposed downstream of the O-ring feeding and assembling unit 2; the ball support feeding and assembling unit 4 is disposed downstream of the spring feeding and assembling unit 3; the ceramic ball feeding and assembling unit 5 is disposed downstream of the ball support feeding and assembling unit 4. For example, the plug body feeding and assembling unit, the O-ring feeding and assembling unit 2, the spring feeding and assembling unit 3, the ball support feeding and assembling unit 4, and the ceramic ball feeding and assembling unit 5 are arranged around the outer side of the outer ring of the turntable mechanism 6. The turntable mechanism 6 can rotate, and an assembly station 64 is provided thereon.

[0082] During the assembly process, the turntable mechanism 6 rotates continuously, and the assembly station 64 on the turntable mechanism 6 can sequentially rotate to the plug body feeding and assembling unit, the O-ring feeding and assembling unit 2, the spring feeding and assembling unit 3, the ball support feeding and assembling unit 4, and the ceramic ball feeding and assembling unit 5 to automatically perform plug body feeding, O-ring assembly, spring assembly, ball support assembly, and ceramic ball assembly in sequence. Thus, there is no need for manual assembly of the plug assembly, which saves time and effort and greatly improves the assembly efficiency of the plug assembly.

[0083] In an embodiment of the present invention, as Figure 3 and Figure 4As shown, the turntable mechanism 6 includes: a fixed disk 61; a turntable body 62, rotatably connected coaxially with the fixed disk 61. A plurality of assembly stations 64 are arranged at intervals along the circumferential direction on the turntable body 62. The plug body feeding and assembling unit, the O-ring feeding and assembling unit 2, the spring feeding and assembling unit 3, the ball support feeding and assembling unit 4, and the ceramic ball feeding and assembling unit 5 are arranged around the outer circle of the turntable body 62. A driver 63, connected to the turntable body 62, for driving the turntable body 62 to rotate; component carriers 64, respectively arranged on each assembly station 64, for fixing the plug body.

[0084] In an embodiment of the present invention, the plug body feeding unit 1 includes: a plug body feeding mechanism; a plug body loading mechanism, arranged downstream of the plug body feeding mechanism.

[0085] The plug body feeding mechanism includes: a plug body tray 11, for containing the plug body; a tray sliding device 12, connected to the plug body tray 11, for driving the plug body tray 11 to slide.

[0086] The plug body loading mechanism includes: a plug body grasping device 13, for transporting the plug body between the plug body tray 11 and the assembly station 64.

[0087] For example, as Figure 1 , Figure 2 , Figure 5 and Figure 6 shown, the tray sliding device 12 includes: a sliding workbench, a slide rail and a tray rack. The slide rail is arranged on the sliding workbench, and the tray rack is slidably installed on the slide rail. One or more plug body trays 11 can be placed on the tray rack. Each plug body tray 11 contains a plurality of plug bodies in an array. The plug body grasping device 13 is arranged beside the sliding workbench. For example, the grasping device is a four-axis robot, which can grasp a certain plug body on the plug body tray 11 to the assembly station 64 on the turntable mechanism 6. The turntable mechanism 6 rotates so that the assembly station 64 with the plug body rotates to the position corresponding to the O-ring feeding and assembling unit 2 for O-ring assembly.

[0088] In an embodiment of the present invention, as Figure 7 shown, the O-ring feeding and assembling unit 2 includes: an O-ring feeding vibrating disk 21, arranged downstream of the plug body feeding unit 1; an O-ring linear feeder 22, connected to the O-ring feeding vibrating disk 21; an O-ring assembling mechanism, connected to the O-ring linear feeder 22, for assembling the O-ring to the plug body.

[0089] In an embodiment of the present invention, as Figure 7As shown in the figure, the O-ring assembly mechanism includes: an O-ring picking structure for picking up the O-rings cut by the O-ring linear feeder 22; a position adjustment driving cylinder connected to the O-ring picking structure for adjusting the assembly position of the O-rings; and an O-ring flipping and mounting structure arranged adjacent to the O-ring picking structure for adjusting the assembly direction of the O-rings and mounting the O-rings.

[0090] Further, in an embodiment of the present invention, as Figure 7 shown, the position adjustment driving cylinder includes: an O-ring transverse movement driving cylinder 2401 connected to the O-ring picking structure; and an O-ring longitudinal movement driving cylinder 2402 connected to the O-ring transverse movement driving cylinder 2401.

[0091] The O-ring picking structure includes: a picking cone 2301 connected to the O-ring transverse movement driving cylinder 2401 or the O-ring longitudinal movement driving cylinder 2402 and adapted to the O-rings; a picking driving cylinder 2302 connected to the picking cone 2301 for driving the picking cone 2301 to move longitudinally to pick up the O-rings; a pushing sleeve 2303 slidably sleeved outside the picking cone 2301; and a pushing driving cylinder 2304 connected to the pushing sleeve 2303 for driving the pushing sleeve 2303 to slide relative to the picking cone 2301 to push the O-rings on the picking cone 2301.

[0092] The O-ring flipping and mounting structure includes: a front sleeve 2501 adapted to the O-rings; a mounting sleeve 2502 slidably sleeved outside the front sleeve 2501; a mounting driving cylinder 2503 connected to the mounting sleeve 2502 for driving the mounting sleeve 2502 to slide relative to the front sleeve 2501 to push the O-rings on the front sleeve 2501; and a flipping driving cylinder 2504 connected to the front sleeve 2501 or the mounting sleeve 2502 for driving the front sleeve 2501 and the mounting sleeve 2502 to flip integrally.

[0093] Specifically, as Figure 7 shown, the pilot valve plug assembly production line includes a main body workbench, and a plug assembly grasping device, an O-ring feeding and assembling unit 2, a spring feeding and assembling unit 3, a ball support feeding and assembling unit 4, a ceramic ball feeding and assembling unit 5 and a turntable mechanism 6 are all arranged on the main body workbench. The plug body feeding mechanism is arranged beside the main body workbench.

[0094] The O-ring feeding vibrating disk 21 is connected to the O-ring linear feeder 22, and an O-ring cutting plate is arranged at the end of the O-ring linear feeder 22. The O-ring linear feeder 22 can extend to the O-ring cutting plate to cut and separate the O-rings. The O-ring transverse movement driving cylinder 2401 and the O-ring longitudinal movement driving cylinder 2402 are both provided with corresponding driving sliding tracks. The O-ring transverse movement driving cylinder 2401 and the O-ring longitudinal movement driving cylinder 2402 are used to adjust the picking position of the picking cone 2301, and the picking driving cylinder 2302 is used to drive the picking cone 2301 to lift and lower to pick up the O-rings that have completed cutting more accurately.

[0095] After the O-ring is picked up, the pushing drive cylinder 2304 drives the pushing sleeve 2303 to move relative to the picking cone 2301 to push the O-ring on the picking cone 2301 onto the front sleeve 2501. The flipping drive cylinder 2504 drives the front sleeve 2501 and the mounting sleeve 2502 to flip integrally by 180°. Then the mounting drive cylinder 2503 drives the mounting sleeve 2502 to move relative to the front sleeve 2501 to push the O-ring on the front sleeve 2501 onto the plug body at the corresponding assembly station 64 of the turntable mechanism 6.

[0096] In one embodiment of the present invention, as Figure 8 shown, the spring feeding and assembling unit 3 includes: a spring feeding vibrating bowl 31; a spring assembling mechanism arranged downstream of the spring feeding vibrating bowl 31 for assembling springs; a feeding reversing slide rail 33 arranged between the spring feeding vibrating bowl 31 and the spring assembling mechanism for guiding the springs to switch to the vertical assembling direction.

[0097] Further, in one embodiment of the present invention, as Figure 8 shown, the spring assembling mechanism includes: a pallet body 3201 provided with an assembling hole adapted to the spring; a pallet drive cylinder 3202 connected to the pallet body 3201 for driving the pallet body 3201 to move horizontally; an assembling column 3203 vertically arranged above the pallet body 3201 and adapted to the assembling hole; an assembling drive cylinder 3204 connected to the assembling column 3203 for driving the assembling column 3203 to move vertically.

[0098] The feeding reversing slide rail 33 includes: a first connecting section connected to the spring feeding vibrating bowl 31; a second connecting section, one end of which is connected to the first connecting section and the other end of which extends vertically to the upper side of the pallet body 3201.

[0099] As Figure 8 shown, the first connecting section is horizontally arranged, the second connecting section is vertically arranged, and the first connecting section and the second connecting section are smoothly transitionally connected. The spring feeding vibrating bowl 31 is connected to the first connecting section, and the second connecting section extends to the upper side of the pallet body 3201. The pallet body 3201 is horizontally arranged and is provided with an assembling hole. The assembling column 3203 is arranged above the pallet body 3201. The assembly station 64 on the turntable mechanism 6 corresponding to the spring feeding and assembling unit 3 is located below the pallet body 3201. The diameter of the assembling hole is slightly larger than the diameter of the spring, and the diameter of the assembling column 3203 is slightly larger than the diameter of the spring and slightly smaller than the diameter of the assembling hole, so that the assembling column 3203 can pass through the assembling hole to push and install the spring into the plug body below the pallet body 3201.

[0100] During the assembly process, the spring is vertically guided to the pallet body 3201 via the spring loading vibrating bowl 31 and the loading reversing slide rail 33. The pallet driving cylinder 3202 drives the pallet to move horizontally until the assembly hole on the pallet corresponds to the lower part of the spring. The assembly driving cylinder 3204 drives the assembly column 3203 to descend, so that the assembly column 3203 pushes the spring into the plug body below the pallet body 3201.

[0101] In addition, a stroke sensor 520 can be installed on the assembly column 3203 to determine whether the spring is installed in place by detecting the stroke of the assembly column 3203.

[0102] In an embodiment of the present invention, as Figure 9 shown, the ball support feeding and assembling unit 4 includes: a ball support feeding vibrating bowl 41; a ball support linear feeder 42 connected to the ball support feeding vibrating bowl 41; a ball support cutting-out driving cylinder 43 arranged downstream of the ball support linear feeder 42 for cutting out the ball supports on the ball support linear feeder 42; a ball support assembling gripper 44 for gripping the cut-out ball supports and assembling them onto the plug body; a ball support gripper transverse movement driving cylinder 45 connected to the ball support assembling gripper 44 for driving the ball support assembling gripper 44 to move transversely; and a ball support gripper longitudinal movement driving cylinder 46 connected to the ball support gripper transverse movement driving cylinder 45 for driving the ball support assembling gripper 44 and the ball support gripper transverse movement driving cylinder 45 to move longitudinally as a whole.

[0103] The plug body with the spring assembled rotates with the turntable mechanism 6 to the position corresponding to the ball support feeding and assembling unit 4 for ball support assembly. Specifically, the ball supports are sent out through the ball support feeding vibrating bowl 41 and the ball support linear feeder 42, and the ball support cutting-out driving cylinder 43 cuts out the ball supports sent out by the ball support linear feeder 42. The ball support assembling gripper 44 grips the cut-out ball supports. The ball support gripper transverse movement driving cylinder 45 and the ball support gripper longitudinal movement driving cylinder 46 adjust the assembling position of the ball support assembling gripper 44 to assemble the ball supports into the plug body.

[0104] In an embodiment of the present invention, the pilot valve plug assembly line further includes: a grease injection unit 7 arranged between the ball support feeding and assembling unit 4 and the ceramic ball feeding and assembling unit 5 for injecting grease into the assembly hole of the plug body.

[0105] Furthermore, in an embodiment of the present invention, as Figure 10 shown, the grease injection unit 7 includes: a grease injection cylinder 71; a grease injector movably installed in the grease injection cylinder 71; a grease injection driving cylinder connected to the grease injector to drive the grease injector to move and extrude the grease; and a grease injection position adjustment driving cylinder 72 connected to the grease injection cylinder 71 for driving the grease injection cylinder 71 to move to adjust the grease injection position.

[0106] The plug body that has completed the ball socket assembly rotates with the turntable mechanism 6 to the position corresponding to the injection unit for grease injection operation. When the plug body rotates below the grease injection cylinder 71, the grease injection driving cylinder drives the grease injector to move within the grease injection cylinder 71 to squeeze the grease in the grease injection cylinder 71 into the plug body.

[0107] In an embodiment of the present invention, as Figure 1 , Figure 2 , Figure 11 and Figure 12 shown, the pilot valve plug assembly line further includes: a blanking unit 8, arranged downstream of the ceramic ball feeding and assembling unit 5.

[0108] The blanking unit 8 includes: a blanking gripper 81 for gripping the assembled plug assembly; a blanking crosswise movement driving cylinder 82 connected to the blanking claw frame for driving the blanking gripper 81 to move crosswise; a blanking longitudinal movement driving cylinder 83 connected to the blanking crosswise movement driving cylinder 82 for driving the integral longitudinal movement of the blanking gripper 81 and the blanking crosswise movement driving cylinder 82.

[0109] Furthermore, in an embodiment of the present invention, the assembly station 64 corresponding to the downstream of the ceramic ball feeding and assembling unit 5 is a blanking station.

[0110] The blanking unit 8 further includes: a vision inspection unit, correspondingly arranged at the blanking station for visually inspecting the quality of the plug assembly.

[0111] Even further, in an embodiment of the present invention, the pilot valve plug assembly line further includes: a non - conforming product storage unit arranged beside the blanking unit 8; a control unit connected to the vision inspection unit, the blanking crosswise movement driving cylinder 82, and the blanking longitudinal movement driving cylinder 83 for controlling the working states of the blanking crosswise movement driving cylinder 82 and the blanking longitudinal movement driving cylinder 83 based on the inspection state of the vision inspection unit to place the pilot valve plug assembly on the non - conforming product storage unit or the pilot valve body and plug assembly equipment 9.

[0112] For example, the blanking gripper 81 is used to grip the assembled plug component. The blanking crosswise movement drive cylinder 82 and the blanking longitudinal movement drive cylinder 83 are used to adjust the gripping and releasing positions of the blanking gripper 81. At the blanking station of the turntable mechanism 6, a vision inspection unit is provided. For example, the vision inspection unit is a camera, which can photograph the assembled plug component and determine whether the plug component at this blanking station is qualified. The control device is connected to the vision inspection unit, the blanking crosswise movement drive cylinder 82, and the blanking longitudinal movement drive cylinder 83. When it is detected that the assembled plug component is a qualified product, the blanking crosswise movement drive cylinder 82 and the blanking longitudinal movement drive cylinder 83 are controlled to drive the blanking gripper 81 to grip the plug component and transfer it to the assembling equipment 9 for the valve body for pilot valve and the plug component, so as to carry out the next assembling work of the valve body for pilot valve and the plug component. When it is detected that the assembled plug component is a non-qualified product, the blanking crosswise movement drive cylinder 82 and the blanking longitudinal movement drive cylinder 83 are controlled to drive the blanking gripper 81 to grip the plug component and transfer it to the non-conforming product storage unit. For example, the non-conforming product storage unit is a non-conforming product storage box.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An assembly device for a valve body and a plug component of a pilot valve, characterized in that, Including: A valve body flipping mechanism (91) disposed beside the conveyor line for gripping and flipping the valve body on the conveyor line tray; A tightening mechanism (92) for tightening the valve body and the plug assembly; A valve body transfer mechanism (93) disposed beside the conveyor line and the tightening mechanism (92) for transferring the valve body between the conveyor line tray and the tightening mechanism (92).

2. The assembling device for the valve body and the plug assembly of the pilot valve according to claim 1, characterized in that, The valve body and plug assembly assembling device (9) for the pilot valve further includes: A valve body lubricating mechanism (94) disposed upstream of the tightening mechanism (92) for lubricating the valve body; The valve body transfer mechanism (93) is used to transfer the valve body between the conveyor line tray, the valve body lubricating mechanism (94) and the tightening mechanism (92).

3. The assembling device for the valve body and the plug component of the pilot valve according to claim 2, characterized in that, The valve body flipping mechanism (91) includes: A flipping valve body gripper (9101); A flipping valve body gripping drive cylinder (9102) connected to the flipping valve body gripper (9101) for adjusting the gripping state of the flipping valve body gripper (9101); A flipping valve body rotating drive cylinder (9103) connected to the flipping valve body gripper (9101) for driving the flipping valve body gripper (9101) to rotate; A flipping valve body transverse movement drive cylinder (9104) connected to the flipping valve body gripper (9101) for driving the flipping valve body gripper (9101) to move transversely; A flipping valve body longitudinal movement drive cylinder (9105) connected to the flipping valve body gripper (9101) for driving the flipping valve body gripper (9101) to move longitudinally.

4. The assembling equipment for the valve body and the plug component of the pilot valve according to claim 2, characterized in that, The valve body transfer mechanism (93) includes: A transfer slide (9301) disposed between the conveyor line, the valve body lubricating mechanism (94) and the tightening mechanism (92); A transfer gripper slidably connected to the transfer slide (9301); A transfer gripping drive cylinder (9302) connected to the transfer gripper for adjusting the gripping state of the transfer gripper; A transfer drive cylinder (9303) connected to the transfer gripper for driving the transfer gripper to slide along the transfer slide (9301).

5. The assembly equipment for the valve body and the plug assembly of the pilot valve according to claim 2, characterized in that, The valve body lubricating mechanism (94) includes: A placement table for placing the valve body; An oil spraying mechanism for spraying oil on the valve body.

6. The assembly equipment for the valve body and plug assembly of the pilot valve according to claim 1, characterized in that, The valve body and plug assembly assembling device for the pilot valve further includes: A clamping and positioning mechanism (95) disposed above the tightening mechanism (92) and used for clamping and positioning the valve body; The clamping and positioning mechanism (95) includes: A positioning workbench (100) provided with a perforation (110) suitable for passing and placing the plug assembly.

7. The assembly device for the valve body and plug assembly of the pilot valve according to claim 6, characterized in that, The tightening mechanism (92) includes: A tightening gun body (9201) correspondingly disposed below the perforation (110); A hexagon bit (9202) installed on the tightening gun body (9201); A tightening gun lifting drive cylinder (9203) connected to the tightening gun body (9201) for driving the tightening gun body (9201) to move up and down; A tightening gun rotating drive cylinder (9204) connected to the tightening gun body (9201) for driving the tightening gun body (9201) to rotate.

8. The assembly equipment for the valve body and the plug assembly of the pilot valve according to claim 7, characterized in that, The tightening mechanism (92) further includes: A first mounting block (9205) connected to the positioning workbench (100), and the tightening gun lifting drive cylinder (9203) is fixed to the first mounting block (9205); A second mounting block (9207), the second mounting block (9207) is connected to the tightening gun body (9201) through a connecting block (9206), the tightening gun lifting drive cylinder (9203) is connected to the second mounting block (9207), and the tightening gun lifting drive cylinder (9203) drives the tightening gun body (9201) to move up and down through the second mounting block (9207).

9. An assembly line for a pilot valve, characterized in that, Including the pilot valve body and plug assembly equipment according to any one of claims 1 to 8.

10. The assembly line for the pilot valve according to claim 9, characterized in that, The pilot valve assembly line further includes: A pilot valve plug assembly line, which is arranged upstream of the pilot valve body and plug assembly equipment.

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