Pilot valve plug assembly line

Abstract

The invention relates to the technical field of pilot valve assembly, and provides a pilot valve plug assembly line which comprises a plug body feeding unit, an O-ring feeding assembly unit, a spring feeding assembly unit, a ball support feeding assembly unit, a ceramic ball feeding assembly unit and a rotary table mechanism. In the assembling process, the rotating disc mechanism continuously rotates, and assembling stations on the rotating disc mechanism can sequentially rotate to the plug body feeding unit, the O-ring feeding and assembling unit, the spring feeding and assembling unit, the ball support feeding and assembling unit and the ceramic ball feeding and assembling unit. And plug body feeding, O-ring assembling, spring assembling, ball support assembling and ceramic ball assembling are sequentially and automatically carried out. Therefore, manual assembly of the plug assembly is not needed, time and labor are saved, and the assembly efficiency of the plug assembly is greatly improved.

Description

Technical Field

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

[0002] The mining pilot valve is the core component of the electro-hydraulic control reversing valve. At present, most of the plug assemblies of the pilot valve are manually assembled, which is time-consuming and laborious, and the assembly efficiency is relatively low. Summary of the Invention

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

[0004] An assembly line for a pilot valve plug assembly provided by the present invention includes: a plug body feeding unit; an O-ring feeding and assembling unit arranged downstream of the plug body feeding unit; a spring feeding and assembling unit arranged downstream of the O-ring feeding and assembling unit; a ball support feeding and assembling unit arranged downstream of the spring feeding and assembling unit; a ceramic ball feeding and assembling unit arranged downstream of the ball support feeding and assembling unit; and a turntable mechanism provided with an assembly station, which can rotate between the plug body feeding unit, the O-ring feeding and assembling unit, the spring feeding and assembling unit, the ball support feeding and assembling unit, and the ceramic ball feeding and assembling unit to adjust the position of the assembly station.

[0005] According to the assembly line for a pilot valve plug assembly provided by the present invention, the plug body feeding unit includes: a plug body feeding mechanism; a plug body loading mechanism arranged downstream of the plug body feeding mechanism.

[0006] The plug body feeding mechanism includes: a plug body tray for containing the plug body; a tray sliding device connected to the plug body tray for driving the plug body tray to slide.

[0007] The plug body loading mechanism includes: a plug body grasping device for transferring the plug body between the plug body tray and the assembly station.

[0008] According to the assembly line for a pilot valve plug assembly provided by the present invention, the O-ring feeding and assembling unit includes: an O-ring feeding vibrating disk arranged downstream of the plug body feeding unit; an O-ring linear feeder connected to the O-ring feeding vibrating disk; and an O-ring assembling mechanism connected to the O-ring linear feeder for assembling the O-ring onto the plug body.

[0009] According to a pilot valve plug assembly line provided by the present invention, the O-ring assembly mechanism includes: an O-ring picking structure for picking up the O-rings cut by the O-ring linear feeder; an alignment driving cylinder connected to the O-ring picking structure for adjusting the assembly position of the O-rings; and an O-ring flipping and installing structure disposed adjacent to the O-ring picking structure for adjusting the assembly direction of the O-rings and installing the O-rings.

[0010] According to a pilot valve plug assembly line provided by the present invention, the alignment driving cylinder includes: an O-ring transverse movement driving cylinder connected to the O-ring picking structure; and an O-ring longitudinal movement driving cylinder connected to the O-ring transverse movement driving cylinder.

[0011] The O-ring picking structure includes: a picking cone connected to the O-ring transverse movement driving cylinder or the O-ring longitudinal movement driving cylinder and adapted to the O-rings; a picking driving cylinder connected to the picking cone for driving the picking cone to move longitudinally to pick up the O-rings; a pushing sleeve slidably sleeved outside the picking cone; and a pushing driving cylinder connected to the pushing sleeve for driving the pushing sleeve to slide relative to the picking cone to push the O-rings on the picking cone.

[0012] The O-ring flipping and installing structure includes: a front sleeve adapted to the O-rings; an installing sleeve slidably sleeved outside the front sleeve; an installing driving cylinder connected to the installing sleeve for driving the installing sleeve to slide relative to the front sleeve to push and install the O-rings on the front sleeve; and a flipping driving cylinder connected to the front sleeve or the installing sleeve for driving the whole of the front sleeve and the installing sleeve to flip.

[0013] According to a pilot valve plug assembly line provided by the present invention, the spring feeding and assembling unit includes: a spring feeding vibrating bowl; a spring assembling mechanism disposed downstream of the spring feeding vibrating bowl for assembling the springs; and a feeding reversing slide rail disposed between the spring feeding vibrating bowl and the spring assembling mechanism for guiding the springs to switch to the vertical assembling direction.

[0014] According to a pilot valve plug assembly line provided by the present invention, the spring assembling mechanism includes: a pallet body provided with an assembling hole adapted to the springs; a pallet driving cylinder connected to the pallet body for driving the pallet body to move horizontally; an assembling column vertically disposed above the pallet body and adapted to the assembling hole; and an assembling driving cylinder connected to the assembling column for driving the assembling column to move vertically.

[0015] The feeding reversing slide rail includes: a first connecting section connected to the spring feeding vibrating bowl; and a second connecting section having one end connected to the first connecting section and the other end vertically extending to the upper side of the pallet body.

[0016] According to a pilot valve plug assembly line provided by the present invention, the ball support feeding and assembling unit includes: a ball support feeding vibrating bowl; a ball support linear feeder connected to the ball support feeding vibrating bowl; a ball support cutting drive cylinder disposed downstream of the ball support linear feeder for cutting out the ball support on the ball support linear feeder; a ball support assembling gripper for gripping the cut-out ball support and assembling it onto the plug body; a ball support gripper transverse movement drive cylinder connected to the ball support assembling gripper for driving the ball support assembling gripper to move transversely; and a ball support gripper longitudinal movement drive cylinder connected to the ball support gripper transverse movement drive cylinder for driving the ball support assembling gripper and the ball support gripper transverse movement drive cylinder to move longitudinally as a whole.

[0017] According to a pilot valve plug assembly line provided by the present invention, the pilot valve plug assembly line further includes: a grease injection unit disposed between the ball support feeding and assembling unit and the ceramic ball feeding and assembling unit for injecting grease into the assembly hole of the plug body.

[0018] According to a pilot valve plug assembly line provided by the present invention, the grease injection unit includes: a grease injection cylinder; a grease injector movably installed in the grease injection cylinder; a grease injection drive cylinder connected to the grease injector to drive the grease injector to move and extrude grease; and a grease injection position adjustment drive cylinder connected to the grease injection cylinder for driving the grease injection cylinder to move to adjust the grease injection position.

[0019] According to a pilot valve plug assembly line provided by the present invention, the pilot valve plug assembly line further includes: a blanking unit disposed downstream of the ceramic ball feeding and assembling unit.

[0020] The blanking unit includes: a blanking gripper for gripping the assembled plug assembly; a blanking transverse movement drive cylinder connected to the blanking gripper frame for driving the blanking gripper to move transversely; and a blanking longitudinal movement drive cylinder connected to the blanking transverse movement drive cylinder for driving the blanking gripper and the blanking transverse movement drive cylinder to move longitudinally as a whole.

[0021] According to a pilot valve plug assembly line provided by the present invention, the turntable mechanism includes: a fixed disk, a turntable body coaxially and rotatably connected to the fixed disk, and a plurality of the assembly stations are arranged at intervals along the circumferential direction on the turntable body. The plug body feeding unit, the O-ring feeding and assembling unit, the spring feeding and assembling unit, the ball support feeding and assembling unit, and the ceramic ball feeding and assembling unit are arranged around the outer circle of the turntable body; a driver connected to the turntable body for driving the turntable body to rotate; and component carriers respectively arranged at each of the assembly stations for fixing the plug body.

[0022] According to a pilot valve plug assembly line provided by the present invention, the downstream assembly station corresponding to the ceramic ball feeding and assembling unit is the blanking station.

[0023] The blanking unit further includes: a vision inspection unit, which is correspondingly arranged at the blanking station and is used for visually inspecting the quality of the plug assembly.

[0024] According to a pilot valve plug assembly line provided by the present invention, the pilot valve plug assembly line further includes: a non-conforming product storage unit, which is arranged beside the blanking unit; a control unit, which is connected to the vision inspection unit, the blanking crosswise movement driving cylinder and the blanking longitudinal movement driving cylinder, and is used for controlling the working states of the blanking crosswise movement driving cylinder and the blanking longitudinal movement driving cylinder based on the inspection state of the vision inspection unit, so as to place the pilot valve plug assembly on the non-conforming product storage unit or the assembly equipment for the pilot valve body and the plug assembly.

[0025] In the pilot valve plug assembly line provided by the present invention, it includes a plug body feeding unit, an O-ring feeding and assembling unit, a spring feeding and assembling unit, a ball holder feeding and assembling unit, a ceramic ball feeding and assembling unit and a turntable mechanism. The O-ring feeding and assembling unit is arranged downstream of the plug body feeding unit; the spring feeding and assembling unit is arranged downstream of the O-ring feeding and assembling unit; the ball holder feeding and assembling unit is arranged downstream of the spring feeding and assembling unit; the ceramic ball feeding and assembling unit is arranged downstream of the ball holder feeding and assembling unit. For example, the plug body feeding unit, the O-ring feeding and assembling unit, the spring feeding and assembling unit, the ball holder feeding and assembling unit and the ceramic ball feeding and assembling unit are arranged around the outer side of the outer ring of the turntable mechanism. The turntable mechanism can rotate, and there are assembly stations arranged on it.

[0026] During the assembly process, the turntable mechanism rotates continuously, and the assembly stations on the turntable mechanism can sequentially rotate to the plug body feeding unit, the O-ring feeding and assembling unit, the spring feeding and assembling unit, the ball holder feeding and assembling unit and the ceramic ball feeding and assembling unit, so as to automatically perform plug body feeding, O-ring assembling, spring assembling, ball holder assembling and ceramic ball assembling 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. Description of the Drawings

[0027] 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, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1It is the structural schematic diagram of the pilot valve plug assembly line provided by the present invention Figure 1 。

[0029] Figure 2 It is the structural schematic diagram of the pilot valve plug assembly line provided by the present invention Figure 2 。

[0030] Figure 3 It is the structural schematic diagram of the turntable mechanism in the pilot valve plug assembly line provided by the present invention Figure 1 。

[0031] Figure 4 It is the structural schematic diagram of the turntable mechanism in the pilot valve plug assembly line provided by the present invention Figure 2 。

[0032] Figure 5 It is the structural schematic diagram of the plug body tray and the tray sliding device of the plug body feeding unit in the pilot valve plug assembly line provided by the present invention

[0033] Figure 6 It is the plug body grasping device of the plug body feeding unit in the pilot valve plug assembly line provided by the present invention

[0034] 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

[0035] 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

[0036] 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

[0037] 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

[0038] Figure 11 It is the structural schematic diagram of the discharging unit in the pilot valve plug assembly line provided by the present invention Figure 1 。

[0039] Figure 12 It is the structural schematic diagram of the discharging unit in the pilot valve plug assembly line provided by the present invention Figure 2 。

[0040] 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

[0041] Figure 14It is a schematic structural diagram of the valve body turnover mechanism of the valve body and plug assembly equipment for the pilot valve in the assembly line provided by the present invention.

[0042] Figure 15 It is a schematic structural diagram of the valve body transfer mechanism of the valve body and plug assembly equipment for the pilot valve in the assembly line provided by the present invention.

[0043] Figure 16 It is a schematic structural diagram of the clamping and positioning mechanism of the valve body and plug assembly equipment for the pilot valve in the assembly line provided by the present invention.

[0044] Figure 17 It is a schematic structural diagram of the tightening mechanism of the valve body and plug assembly equipment for the pilot valve in the assembly line provided by the present invention.

[0045] Figure 18 It is a schematic external structural diagram of the plug assembly in the present invention.

[0046] Figure 19 It is a schematic internal structural diagram of the plug assembly in the present invention.

[0047] Reference numerals: 1. Plug body feeding unit; 11. Plug body tray; 12. Tray sliding device; 13. Plug body grasping 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. Support plate body; 3202. Support plate 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 assembly 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 disk; 62. Turntable body; 63. Driver; 64. Component carrier; 64. Assembly station; 7. Greasing unit; 71. Greasing cylinder; 72. Greasing position adjustment driving cylinder; 8. Discharging unit; 81. Discharging gripper; 82. Discharging transverse movement driving cylinder; 83. Discharging longitudinal movement driving cylinder; 9. Assembly equipment for valve body of pilot valve 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

[0048] 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.

[0049] 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", "transverse", "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, and thus should not be construed as a limitation to 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.

[0050] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may 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 circumstances.

[0051] In the embodiments of the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may 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 top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0052] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 representations 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 clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0053] The following will describe Figures 1 to 19 a pilot valve plug assembly production line 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 particular limitation to the present invention.

[0054] An embodiment of the present invention provides a pilot valve plug assembly production line, as Figure 1 shown in Figure 2 shown in Figure 18 and Figure 19 shown. The pilot valve plug assembly production line includes: a plug body loading unit 1; an O-ring loading and assembling unit 2 disposed downstream of the plug body loading unit 1; a spring loading and assembling unit 3 disposed downstream of the O-ring loading and assembling unit 2; a ball support loading and assembling unit 4 disposed downstream of the spring loading and assembling unit 3; a ceramic ball loading and assembling unit 5 disposed downstream of the ball support loading and assembling unit 4; a turntable mechanism 6 provided with an assembling station 64 and capable of rotating among the plug body loading unit 1, the O-ring loading and assembling unit 2, the spring loading and assembling unit 3, the ball support loading and assembling unit 4, and the ceramic ball loading and assembling unit 5 to adjust the position of the assembling station 64.

[0055] 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 arranged downstream of the plug body feeding unit 1; the spring feeding and assembling unit 3 is arranged downstream of the O-ring feeding and assembling unit 2; the ball support feeding and assembling unit 4 is arranged downstream of the spring feeding and assembling unit 3; the ceramic ball feeding and assembling unit 5 is arranged downstream of the ball support feeding and assembling unit 4. For example, the plug body feeding unit 1, 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.

[0056] During the assembly process, the turntable mechanism 6 rotates continuously, and the assembly station 64 on the turntable mechanism 6 can successively rotate to the plug body feeding unit 1, 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.

[0057] In an embodiment of the present invention, as Figure 3 and Figure 4 shown, the turntable mechanism 6 includes: a fixed disk 61; a turntable body 62, which is coaxially and rotatably connected to 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 unit 1, 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 ring of the turntable body 62. A driver 63, connected to the turntable body 62, for driving the turntable body 62 to rotate; a component carrier 64, which is correspondingly arranged on each assembly station 64 for fixing the plug body.

[0058] 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.

[0059] 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.

[0060] The plug body loading mechanism includes: a plug body grasping device 13 for transferring the plug body between the plug body tray 11 and the assembly station 64.

[0061] For example, as Figure 1, Figure 2 , Figure 5 and Figure 6 As shown, the pallet sliding device 12 includes a sliding workbench, a slide rail, and a pallet rack. The slide rail is disposed on the sliding workbench, and the pallet rack is slidably mounted on the slide rail. One or more plug body pallets 11 can be placed on the pallet rack. Each plug body pallet 11 is arrayed with a plurality of plug bodies. The plug body grasping device 13 is disposed 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 pallet 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 placed thereon rotates to the position corresponding to the O-ring feeding and assembling unit 2 for O-ring assembly.

[0062] In an embodiment of the present invention, as Figure 1 , Figure 2 and Figure 7 shown, the O-ring feeding and assembling unit 2 includes an O-ring feeding vibrating disk 21 disposed downstream of the plug body feeding unit 1; an O-ring linear feeder 22 connected to the O-ring feeding vibrating disk 21; and an O-ring assembling mechanism connected to the O-ring linear feeder 22 for assembling the O-ring to the plug body.

[0063] In an embodiment of the present invention, as Figure 1 , Figure 2 and Figure 7 shown, the O-ring assembling mechanism includes an O-ring picking structure for picking up the O-ring cut out by the O-ring linear feeder 22; an adjusting driving cylinder connected to the O-ring picking structure for adjusting the assembling position of the O-ring; and an O-ring flipping and mounting structure disposed adjacent to the O-ring picking structure for adjusting the assembling direction of the O-ring and mounting the O-ring.

[0064] Further, in an embodiment of the present invention, as Figure 1 , Figure 2 and Figure 7 shown, the adjusting driving cylinder includes an O-ring transverse moving driving cylinder 2401 connected to the O-ring picking structure; and an O-ring longitudinal moving driving cylinder 2402 connected to the O-ring transverse moving driving cylinder 2401.

[0065] The O-ring picking structure includes a picking cone 2301 connected to the O-ring transverse moving driving cylinder 2401 or the O-ring longitudinal moving driving cylinder 2402 and adapted to the O-ring; 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-ring; 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-ring on the picking cone 2301.

[0066] The O-ring flipping and installing structure includes: a front sleeve 2501 adapted to the O-ring; an installation sleeve 2502 slidably sleeved outside the front sleeve 2501; an installation driving cylinder 2503 connected to the installation sleeve 2502 for driving the installation sleeve 2502 to slide relative to the front sleeve 2501 to push the O-ring on the front sleeve 2501; a flipping driving cylinder 2504 connected to the front sleeve 2501 or the installation sleeve 2502 for driving the overall flipping of the front sleeve 2501 and the installation sleeve 2502.

[0067] Specifically, as Figure 1 , Figure 2 and Figure 7 shown, the pilot valve plug assembly production line includes a main 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 workbench. The plug body feeding mechanism is arranged beside the main workbench.

[0068] The O-ring feeding vibrating bowl 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 equipped 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 further accurately pick up the O-rings that have completed cutting.

[0069] After the O-ring is picked up, the pushing driving 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 driving cylinder 2504 drives the overall flipping of the front sleeve 2501 and the installation sleeve 2502 by 180°. Then the installation driving cylinder 2503 drives the installation 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.

[0070] In an embodiment of the present invention, as Figure 1 , Figure 2 and 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 the spring; a feeding reversing slide rail 33 arranged between the spring feeding vibrating bowl 31 and the spring assembling mechanism for guiding the spring to switch to the vertical assembling direction.

[0071] Further, in an embodiment of the present invention, as Figure 1 , Figure 2 and Figure 8 shown, the spring assembly mechanism includes: a pallet body 3201, provided with an assembly hole adapted to the spring; a pallet driving cylinder 3202, connected to the pallet body 3201 for driving the pallet body 3201 to move horizontally; an assembly column 3203, vertically arranged above the pallet body 3201 and adapted to the assembly hole; and an assembly driving cylinder 3204, connected to the assembly column 3203 for driving the assembly column 3203 to move vertically.

[0072] The loading reversing slide rail 33 includes: a first connection section connected to the spring loading vibrating disk 31; and a second connection section, one end of which is connected to the first connection section and the other end of which extends vertically to the upper side of the pallet body 3201.

[0073] As Figure 8 shown, the first connection section is horizontally arranged, the second connection section is vertically arranged, and the first connection section and the second connection section are smoothly transitionally connected. The spring loading vibrating disk 31 is connected to the first connection section, and the second connection section extends to the upper side of the pallet body 3201. The pallet body 3201 is horizontally arranged and provided with an assembly hole thereon. An assembly column 3203 is arranged above the pallet body 3201. The assembly station 64 corresponding to the spring loading and assembly unit 3 on the turntable mechanism 6 is located below the pallet body 3201. The diameter of the assembly hole is slightly larger than the diameter of the spring, and the diameter of the assembly column 3203 is slightly larger than the diameter of the spring and slightly smaller than the diameter of the assembly hole, so that the assembly column 3203 can pass through the assembly hole to push the spring into the plug body below the pallet body 3201 for installation.

[0074] During the assembly process, the spring is vertically guided to the pallet body 3201 through the spring loading vibrating disk 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.

[0075] In addition, a travel sensor 520 can be installed on the assembly column 3203 to determine whether the spring is installed in place by detecting the travel of the assembly column 3203.

[0076] In an embodiment of the present invention, as Figure 9As shown, the ball holder feeding and assembly unit 4 includes: a ball holder feeding vibration plate 41; a ball holder linear feeder 42, connected to the ball holder feeding vibration plate 41; a ball holder cutting drive cylinder 43, arranged downstream of the ball holder linear feeder 42, for cutting out the ball holder on the ball holder linear feeder 42; a ball holder assembly gripper 44, for grabbing the cut ball holder and assembling it to the screw plug body; a ball holder gripper transverse movement drive cylinder 45, connected to the ball holder assembly gripper 44, for driving the ball holder assembly gripper 44 to move transversely; a ball holder gripper longitudinal movement drive cylinder 46, connected to the ball holder gripper transverse movement drive cylinder 45, for driving the ball holder assembly gripper 44 and the ball holder gripper transverse movement drive cylinder 45 to move longitudinally as a whole.

[0077] The screw plug body with the spring assembly completed rotates with the turntable mechanism 6 to the position corresponding to the ball holder feeding assembly unit 4 to assemble the ball holder. Specifically, the ball holder is sent out through the ball holder feeding vibration plate 41 and the ball holder linear feeder 42, and the ball holder cutting drive cylinder 43 cuts out the ball holder sent out by the ball holder linear feeder 42. The ball holder assembly gripper 44 grabs the cut ball holder. The ball holder gripper transverse drive cylinder 45 and the ball holder gripper longitudinal drive cylinder 46 adjust the assembly position of the ball holder assembly gripper 44 to assemble the ball holder into the screw plug body.

[0078] In one embodiment of the present invention, Figure 1 , Figure 2 and Figure 10 As shown, the pilot valve screw plug assembly assembly line further includes: a grease injection unit 7, which is arranged between the ball holder feeding assembly unit 4 and the ceramic ball feeding assembly unit 5, and is used for injecting grease into the assembly hole of the screw plug body.

[0079] Further, in one embodiment of the present invention, Figure 10 As 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 drive cylinder, connected to the grease injector to drive the grease injector to move and squeeze the grease; a grease injection position adjustment drive cylinder 72, connected to the grease injection cylinder 71, used to drive the grease injection cylinder 71 to move to adjust the grease injection position.

[0080] The screw plug body after the ball holder assembly is completed rotates with the turntable mechanism 6 to the position corresponding to the injection unit to perform the grease injection operation. When the screw plug body rotates to the bottom of the grease injection cylinder 71, the grease injection drive cylinder drives the grease injector to move in the grease injection cylinder 71 to squeeze the grease in the grease injection cylinder 71 into the screw plug body.

[0081] In one embodiment of the present invention, Figure 1 , Figure 2 , Figure 11 and Figure 12 As shown, the pilot valve screw plug assembly assembly line also includes: a feeding unit 8, which is arranged downstream of the ceramic ball feeding assembly unit 5.

[0082] The blanking unit 8 includes: a blanking gripper 81 for gripping the assembled plug component; a blanking transverse movement driving cylinder 82 connected to the blanking claw frame for driving the blanking gripper 81 to move transversely; and a blanking longitudinal movement driving cylinder 83 connected to the blanking transverse movement driving cylinder 82 for driving the overall longitudinal movement of the blanking gripper 81 and the blanking transverse movement driving cylinder 82.

[0083] Further, 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.

[0084] The blanking unit 8 further includes: a vision inspection unit correspondingly disposed at the blanking station for visually inspecting the quality of the plug component.

[0085] Furthermore, in an embodiment of the present invention, the pilot valve plug component assembly line further includes: a non-conforming product storage unit disposed beside the blanking unit 8; and a control unit connected to the vision inspection unit, the blanking transverse movement driving cylinder 82, and the blanking longitudinal movement driving cylinder 83 for controlling the working states of the blanking transverse 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 component on the non-conforming product storage unit or the pilot valve body and plug component assembling device 9.

[0086] For example, the blanking gripper 81 is used to grab the assembled plug component. The blanking transverse movement driving cylinder 82 and the blanking longitudinal movement driving cylinder 83 are used to adjust the grabbing 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 transverse movement driving cylinder 82, and the blanking longitudinal movement driving cylinder 83. When it is detected that the assembled plug component is a qualified product, the blanking transverse movement driving cylinder 82 and the blanking longitudinal movement driving cylinder 83 are controlled to drive the blanking gripper 81 to grab the plug component into the pilot valve body and plug component assembling device 9 for the next step of assembling the pilot valve body and the plug component. When it is detected that the assembled plug component is a non-conforming product, the blanking transverse movement driving cylinder 82 and the blanking longitudinal movement driving cylinder 83 are controlled to drive the blanking gripper 81 to grab the plug component into the non-conforming product storage unit. For example, the non-conforming product storage unit is a non-conforming product storage box.

[0087] An embodiment of the present invention can also provide a pilot valve assembling line, including the above-mentioned pilot valve plug component assembly line and the pilot valve body and plug component assembling device 9.

[0088] As Figure 13As shown in the figure, the assembly equipment 9 for the valve body and the plug assembly of the pilot valve includes: a valve body flipping mechanism 91 disposed 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; and 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.

[0089] In the assembly equipment 9 for the valve body and the 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 the plug assembly, and a conveyor line. There is a tray on the conveyor line, and the valve body is placed on the tray. In the initial state, the assembly hole of the valve body on the tray faces upward. 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 downward, and then put 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 for manual assembly of 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.

[0090] In an embodiment of the present invention, as Figure 13 shown, the assembly equipment 9 for the valve body and the plug assembly of the pilot valve further includes: a valve body lubricating mechanism 94 disposed upstream of the tightening mechanism 92 for lubricating the valve body; and 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.

[0091] For example, in an embodiment of the present invention, the valve body lubricating mechanism 94 includes: a placement table for placing the valve body; and an oil spraying mechanism for spraying oil on the valve body.

[0092] During the assembly process, the valve body flipping mechanism 91 can flip the valve body on the tray so that the assembly hole faces downward, and then put 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 on the assembly hole of the valve body for lubrication. After the lubrication is completed, 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.

[0093] In an embodiment of the present invention, as Figure 14As shown in the figure, the valve body flipping mechanism 91 includes: a flipping valve body gripper 9101; a flipping valve body gripping driving 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 driving 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 driving cylinder 9104, connected to the flipping valve body gripper 9101 for driving the flipping valve body gripper 9101 to move transversely; and a flipping valve body longitudinal movement driving cylinder 9105, connected to the flipping valve body gripper 9101 for driving the flipping valve body to move longitudinally.

[0094] The flipping valve body transverse movement driving cylinder 9104 and the flipping valve body longitudinal movement driving cylinder 9105 drive the flipping valve body gripper 9101 to move to the tray position on the conveyor line. The flipping valve body gripping driving cylinder 9102 drives the flipping valve body gripper 9101 to clamp the valve body to be flipped on the tray. Subsequently, the flipping valve body rotating driving cylinder 9103 drives the flipping valve body gripper 9101 to flip 180°, thereby driving the valve body clamped thereon to flip 180°. The flipping valve body transverse movement driving cylinder 9104 and the flipping valve body longitudinal movement driving cylinder 9105 drive the flipping valve body gripper 9101 to move to the tray position on the conveyor line. The flipping valve body gripping driving cylinder 9102 drives the flipping valve body to release the flipped valve body onto the tray.

[0095] In an embodiment of the present invention, as Figure 15 shown, 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 driving cylinder 9302 connected to the transfer gripper for adjusting the gripping state of the transfer gripper; and a transfer driving cylinder 9303 connected to the transfer gripper for driving the transfer gripper to slide along the transfer slide 9301.

[0096] For example, as Figure 1 、 Figure 2 and Figure 13 shown, the transfer slide 9301 extends along the layout direction among the conveyor line, the valve body lubricating mechanism 94, and the tightening mechanism 92. A transfer gripper is slidably arranged on the transfer slide 9301. The transfer gripping driving cylinder 9302 can adjust the gripping state of the transfer gripper, and the transfer driving 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 conveyor line, the valve body lubricating mechanism 94, and the tightening mechanism 92.

[0097] Specifically, the transfer driving cylinder 9303 drives the transfer gripper to move along the transfer slide 9301 to a position close to the conveyor line tray. The transfer gripping driving cylinder 9302 drives the transfer gripper to grip the inverted valve body. The transfer driving cylinder 9303 drives the transfer gripper to move along the transfer slide 9301 to the placement table of the valve body lubricating mechanism 94. The transfer gripping driving cylinder 9302 drives the transfer gripper to place the valve body on the placement table for lubrication operation. The transfer gripping driving cylinder 9302 drives the transfer gripper to grip the lubricated valve body. The transfer driving cylinder 9303 drives the transfer gripper to move along the transfer slide 9301 to the tightening mechanism 92 for assembly and tightening operation.

[0098] In an embodiment of the present invention, as Figure 16 shown, the valve body and plug assembly assembling device 9 for the pilot valve further includes: a clamping and positioning mechanism 95, disposed on the upper side of 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 through hole 110, and the through hole 110 is adapted to pass through and place the plug assembly.

[0099] In an embodiment of the present invention, as Figure 17 shown, the tightening mechanism 92 includes: a tightening gun body 9201, correspondingly disposed under the through hole 110; a hexagon bit 9202, installed on the tightening gun body 9201; a tightening gun lifting driving cylinder 9203, connected to the tightening gun body 9201 and used for driving the tightening gun body 9201 to move up and down; a tightening gun rotation driving cylinder 9204, connected to the tightening gun body 9201 and used for driving the tightening gun body 9201 to rotate.

[0100] Furthermore, in an embodiment of the present invention, as Figure 17 shown, the tightening mechanism 92 further includes: a first mounting block 9205, connected to the positioning workbench 100, and the tightening gun lifting driving 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 driving cylinder 9203 is connected to the second mounting block 9207, and the tightening gun lifting driving cylinder 9203 drives the tightening gun body 9201 to move up and down through the second mounting block 9207.

[0101] Specifically, as Figure 13As shown, the positioning valve body is placed and clamped on the upper side of the positioning workbench 100, and the plug assembly is placed through 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 drives the second mounting block 9207 to lift and lower to adjust the height position of the tightening gun body. 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 can include two cylinders, and the two cylinders are symmetrically connected to the bottom of the second mounting block 9207.

[0102] 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 and the valve body are tightly connected.

[0103] In another embodiment of the present invention, 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.

[0104] Among them, 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 to place the valve body of the pilot valve.

[0105] During the assembly process of the valve body of the pilot valve and the plug assembly, place the valve body of the pilot valve in the positioning and clamping area, adjust the position of the movable positioning block 300 so that the valve body of the pilot valve is clamped between the fixed positioning block 200 and the movable positioning block 300, and then, assemble and tighten the plug assembly. Through this structural setting, the assembly positioning accuracy of the valve body of the pilot valve can be improved, and further, the assembly efficiency of the pilot valve can be improved.

[0106] 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.

[0107] In one 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.

[0108] Further, in an embodiment of the present invention, the workbench sliding drive mechanism includes: a workbench sliding guide rail 120, and the positioning workbench 100 is slidably connected to the workbench sliding guide rail 120; a workbench sliding cylinder 130, which 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.

[0109] Specifically, as Figure 13 shown, the positioning workbench 100 is slidably connected to the workbench sliding guide rail 120. The 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, so as 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. There is a tightening device 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, so as to use one set of tightening device to assemble multiple sets of plug assemblies, saving the equipment cost for assembly.

[0110] 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 the perforation 110 is adapted to allow the plug assembly of the pilot valve to pass through and connect to the valve body of the pilot valve.

[0111] Further, 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.

[0112] For example, as Figure 13 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 corresponding in the positioning and clamping area, and use the movable positioning block 300 and the fixed positioning block 200 to clamp and fix it. Finally, use the tightening device to tighten the plug assembly and the valve body.

[0113] 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.

[0114] Among them, the first positioning groove 220 and the second positioning groove 320 can be positioned and clamped at the diagonal of the valve body of the pilot valve.

[0115] For example, as Figure 13 shown, the valve body of the pilot valve is a cuboid structure, and both the first positioning groove 220 and the second positioning groove 320 are L-shaped positioning grooves. 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 valve body of the pilot valve can be improved.

[0116] In an embodiment of the present invention, the clamping and positioning mechanism 95 further includes: a positioning and adjusting drive 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.

[0117] Furthermore, in an embodiment of the present invention, the positioning and adjusting drive mechanism includes: an adjusting guide rail 410, the 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; an adjusting drive cylinder 420, the adjusting drive cylinder 420 is connected to the movable block 310 and is used to drive the movable block 310 to slide along the adjusting guide rail 410.

[0118] As Figure 13 shown, the 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 drive 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 drive cylinder 420 includes but is not limited to an electric cylinder.

[0119] 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.

[0120] Specifically, in an embodiment of the present invention, the clamping detection device includes: a photoelectric proximity sensor 510, the photoelectric proximity sensor 510 is installed on the movable block 310; a stroke sensor 520, the stroke sensor 520 is installed on the adjusting drive cylinder 420 and is used to detect the stroke of the adjusting drive cylinder 420.

[0121] 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 adjustment drive 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.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; 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 embodiments of the present invention.

Claims

1. A pilot valve plug assembly line, characterized in that, Including: Plug body feeding unit (1); O-ring feeding and assembling unit (2), arranged downstream of the plug body feeding unit (1); Spring feeding and assembling unit (3), arranged downstream of the O-ring feeding and assembling unit (2); Ball support feeding and assembling unit (4), arranged downstream of the spring feeding and assembling unit (3); Ceramic ball feeding and assembling unit (5), arranged downstream of the ball support feeding and assembling unit (4); Rotary table mechanism (6), provided with an assembling station (64), capable of rotating between the plug body feeding unit (1), 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 assembling station (64).

2. The pilot valve plug assembly production line according to claim 1, characterized in that The plug body feeding unit (1) includes: Plug body feeding mechanism; Plug body loading mechanism, arranged downstream of the plug body feeding mechanism; The plug body feeding mechanism includes: Plug body tray (11), used for containing plug bodies; Tray sliding device (12), connected to the plug body tray (11), used for driving the plug body tray (11) to slide; The plug body loading mechanism includes: Plug body grasping device (13), used for transporting plug bodies between the plug body tray (11) and the assembling station (64).

3. The pilot valve plug assembly line according to claim 2, characterized in that The O-ring feeding and assembling unit (2) includes: O-ring feeding vibrating bowl (21), arranged downstream of the plug body feeding unit (1); O-ring linear feeder (22), connected to the O-ring feeding vibrating bowl (21); O-ring assembling mechanism, connected to the O-ring linear feeder (22), used for assembling O-rings to the plug body.

4. The pilot valve plug assembly line according to claim 3, characterized in that, The O-ring assembling mechanism includes: O-ring picking structure, used for picking up the O-rings cut out by the O-ring linear feeder (22); Position adjusting driving cylinder, connected to the O-ring picking structure, used for adjusting the assembling position of the O-ring; O-ring flipping and installing structure, arranged adjacent to the O-ring picking structure, used for adjusting the assembling direction of the O-ring and installing the O-ring.

5. The pilot valve plug assembly line according to claim 4, characterized in that, The position adjusting driving cylinder includes: O-ring transverse moving driving cylinder (2401), connected to the O-ring picking structure; O-ring longitudinal moving driving cylinder (2402), connected to the O-ring transverse moving driving cylinder (2401); The O-ring picking structure includes: Picking cone (2301), connected to the O-ring transverse moving driving cylinder (2401) or the O-ring longitudinal moving driving cylinder (2402) and adapted to the O-ring; Picking driving cylinder (2302), connected to the picking cone (2301), used for driving the picking cone (2301) to move longitudinally to pick up the O-ring; Pushing sleeve (2303), slidably sleeved outside the picking cone (2301); Pushing driving cylinder (2304), connected to the pushing sleeve (2303), used for driving the pushing sleeve (2303) to slide relative to the picking cone (2301) to push the O-ring on the picking cone (2301); The O-ring flipping and installing structure includes: The front sleeve (2501) is adapted to the O-ring; The installation sleeve (2502) is slidably sleeved outside the front sleeve (2501); The installation driving cylinder (2503) is connected to the installation sleeve (2502) and is used to drive the installation sleeve (2502) to slide relative to the front sleeve (2501) so as to push and install the O-ring on the front sleeve (2501); The flipping driving cylinder (2504) is connected to the front sleeve (2501) or the installation sleeve (2502) and is used to drive the overall flipping of the front sleeve (2501) and the installation sleeve (2502).

6. The pilot valve plug assembly production line according to claim 1, characterized in that The spring feeding and assembling unit (3) includes: The spring feeding vibrating bowl (31); The spring assembling mechanism is arranged downstream of the spring feeding vibrating bowl (31) and is used to assemble the spring; The feeding reversing slide rail (33) is arranged between the spring feeding vibrating bowl (31) and the spring assembling mechanism and is used to guide the spring to switch to the vertical assembling direction.

7. The pilot valve plug assembly production line according to claim 6, wherein, The spring assembling mechanism includes: The pallet body (3201) is provided with an assembling hole which is adapted to the spring; The pallet driving cylinder (3202) is connected to the pallet body (3201) and is used to drive the horizontal movement of the pallet body (3201); The assembling column (3203) is vertically arranged above the pallet body (3201) and is adapted to the assembling hole; The assembling driving cylinder (3204) is connected to the assembling column (3203) and is used to drive the vertical movement of the assembling column (3203); The feeding reversing slide rail (33) includes: The first connecting section is connected to the spring feeding vibrating bowl (31); The second connecting section has one end connected to the first connecting section and the other end vertically extending to the upper side of the pallet body (3201).

8. The pilot valve plug assembly line according to claim 1, characterized in that, The ball support feeding and assembling unit (4) includes: The ball support feeding vibrating bowl (41); The ball support linear feeder (42) is connected to the ball support feeding vibrating bowl (41); The ball support cutting-out driving cylinder (43) is arranged downstream of the ball support linear feeder (42) and is used to cut out the ball support on the ball support linear feeder (42); The ball support assembling gripper (44) is used to grab the cut-out ball support and assemble it onto the plug body; The ball support gripper transverse movement driving cylinder (45) is connected to the ball support assembling gripper (44) and is used to drive the transverse movement of the ball support assembling gripper (44); The ball support gripper longitudinal movement driving cylinder (46) is connected to the ball support gripper transverse movement driving cylinder (45) and is used to drive the overall longitudinal movement of the ball support assembling gripper (44) and the ball support gripper transverse movement driving cylinder (45).

9. The pilot valve plug assembly production line according to claim 1, wherein, The pilot valve plug assembly line further includes: The grease injection unit (7) is arranged between the ball support feeding and assembling unit (4) and the ceramic ball feeding and assembling unit (5) and is used to inject grease into the assembling hole of the plug body.

10. The pilot valve plug assembly line according to claim 9, characterized in that, The grease injection unit (7) includes: The grease injection cylinder (71); The grease injector is movably installed in the grease injection cylinder (71); The grease injection driving cylinder is connected to the grease injector to drive the movement of the grease injector to extrude and inject grease; The grease injection position adjustment driving cylinder (72) is connected to the grease injection cylinder (71) and is used to drive the grease injection cylinder (71) to move so as to adjust the grease injection position.

11. The pilot valve plug assembly line according to claim 1, characterized in that, The pilot valve plug assembly production line further includes: The blanking unit (8) is arranged downstream of the ceramic ball feeding and assembling unit (5); The blanking unit (8) includes: The blanking gripper (81) is used to grip the assembled plug assembly; The blanking crosswise movement driving cylinder (82) is connected to the blanking gripper frame and is used to drive the blanking gripper (81) to move crosswise; The blanking longitudinal movement driving cylinder (83) is connected to the blanking crosswise movement driving cylinder (82) and is used to drive the blanking gripper (81) and the blanking crosswise movement driving cylinder (82) to move longitudinally as a whole.

12. The pilot valve plug assembly line according to claim 11, characterized in that, The turntable mechanism (6) includes: The fixed disk (61); The turntable body (62) is coaxially and rotatably connected to the fixed disk (61). A plurality of the assembly stations (64) are arranged at intervals along the circumferential direction on the turntable body (62). The plug body feeding unit (1), 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); The driver (63) is connected to the turntable body (62) and is used to drive the turntable body (62) to rotate; The component carrier (64) is correspondingly arranged on each of the assembly stations (64) and is used to fix the plug body.

13. The pilot valve plug assembly line according to claim 2, characterized in that, The assembly station (64) corresponding to the downstream of the ceramic ball feeding and assembling unit (5) is the blanking station; The blanking unit (8) further includes: The vision inspection unit is correspondingly arranged at the blanking station and is used to inspect the quality of the plug assembly visually.

14. The pilot valve plug assembly line according to claim 13, characterized in that, The pilot valve plug assembly production line further includes: The non-conforming product storage unit is arranged beside the blanking unit (8); The control unit is connected to the vision inspection unit, the blanking crosswise movement driving cylinder (82), and the blanking longitudinal movement driving cylinder (83), and is used to control 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 so as to place the plug assembly on the non-conforming product storage unit or the valve body for pilot valve and plug assembly equipment (9).

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