An automatic valve assembly device

Abstract

The present invention discloses an automatic valve assembly device, which includes a transmission component, and a valve ball installation component, a valve cover installation component, a valve stem installation component, a gland installation component, and a handwheel installation component that are sequentially assembled on the transmission component, and respectively assemble a valve ball, a valve cover, a valve stem, a gland, and a handwheel onto a valve body to produce qualified valves. In the transmission component, a driving roller is installed in an installation housing, a reduction motor is fixedly installed on the installation housing and is linked with the driving roller, a transmission chain plate is wound around the driving roller and is equipped with a valve body positioning component, and the valve body positioning component is used for fixedly installing the valve body. The present invention can effectively improve the valve assembly efficiency, ensure the valve assembly precision, and effectively save the input of labor costs through an automatic assembly method.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment related to valve production and assembly, and specifically relates to a valve automatic assembly equipment. Background Art

[0002] Valves are important components for controlling fluid flow and on-off, and are widely used in water supply and drainage, gas transmission, and various production fields. Therefore, the production and sales volume of valves is huge. Valves are mainly assembled from a valve body, a valve ball, a valve cover, a valve stem, a gland, a handwheel, and various supporting components thereon. When manually assembling valves, due to the relatively complex assembly process and the need to ensure stable cooperation between components during the assembly of components, the assembly efficiency is poor. After assembly, the product quality is also poor due to assembly accuracy, the yield rate is low, and special detection equipment is also required. At the same time, due to the continuous increase in labor costs, this production method is not suitable for large-scale valve assembly work.

[0003] Therefore, it is necessary to design a valve automatic assembly equipment, which can effectively improve the assembly efficiency of valves, ensure the assembly accuracy of valves, and effectively save the investment in labor costs through automated assembly. Summary of the Invention

[0004] Aiming at the above deficiencies existing in the prior art, the purpose of the present invention is to provide a valve automatic assembly equipment, which can effectively improve the assembly efficiency of valves, ensure the assembly accuracy of valves, and effectively save the investment in labor costs through automated assembly.

[0005] The technical solution adopted by the present invention to achieve the above purpose is: a valve automatic assembly equipment, including a transmission component and a valve ball installation component, a valve cover installation component, a valve stem installation component, a gland installation component, and a handwheel installation component sequentially assembled on the transmission component. The transmission component includes an installation outer cover, a driving roller, a reduction motor, a transmission chain plate, and a valve body positioning component. The driving roller is rotatably installed in the installation outer cover, the reduction motor is fixedly installed on the installation outer cover and is in linkage with each group of driving rollers, the transmission chain plate is wound around the driving roller, and the valve body positioning component is evenly assembled on the outer side of the transmission chain plate and is used for fixedly installing the valve body.

[0006] The valve ball installation component is used to assemble the valve ball into the valve body, the valve cover installation component is used to assemble the valve cover to the valve ball with the valve assembled, the valve stem component is used to insert the valve stem into the valve cover and connect it to the valve ball, the gland component is used to assemble the gland on the top of the valve cover and position the valve stem, and the handwheel installation component is used to assemble the handwheel on the top of the valve stem.

[0007] In some of these embodiments, to ensure the stable support of the driving roller for the transmission chain plate, ensure the running accuracy of the transmission chain plate, and further improve the assembly accuracy of each component of the valve, it is necessary to ensure that the transmission chain plate is in a taut state, and at the same time ensure that the reduction motor can stably transmit power to each driving roller. The following technical solutions are provided.

[0008] The driving rollers include multiple groups arranged side by side on the same horizontal plane. At the same end of each group of driving rollers, a driving sprocket is fixedly connected. The driving sprockets of each group are chain-driven through a chain. The output shaft of the reduction motor is fixedly connected to the axis of one group of driving rollers.

[0009] In some of these embodiments, to ensure that the valve body positioning component can effectively fix the valve body and enable the valve body to be installed on it with the assembly port vertically upward, the following technical solutions are provided.

[0010] The valve body positioning component includes two sets of nested seats arranged symmetrically and a locking component assembled on the nested seats. Both ends of the valve body are nested and installed on the nested seats, and the valve body is provided with nested grooves that fit the nested seats. The locking component includes an installation sleeve, a positioning pin, and a support spring. The installation sleeve is fixedly installed on the nested seat. The positioning pin is slidably installed in the installation sleeve and extends into the nested groove. The support spring is arranged in the installation sleeve and wound around the periphery of the positioning pin, and both ends of the support spring are respectively in contact with the inner wall of the installation sleeve and the positioning pin.

[0011] In some of these embodiments, to ensure the stable assembly of the valve ball installation component, the valve cover installation component, the valve stem installation component, the gland installation component, and the handwheel installation component on the installation outer cover of the transmission component, so as to assemble the remaining components in the valve body conveyed on the transmission chain plate, and at the same time be able to control the lifting states of the valve ball installation component, the valve cover installation component, the valve stem installation component, the gland installation component, and the handwheel installation component, the following technical solutions are provided.

[0012] One side of the installation outer cover is fixedly connected with an assembly platform, and multiple sets of double-axis operation components are installed on the assembly platform in a matching manner. The valve ball installation component, the valve cover installation component, the valve stem installation component, the gland installation component, and the handwheel installation component are all installed on the double-axis operation components.

[0013] The double-axis operation component includes an installation base, a telescopic cylinder, a lifting seat, a rotating seat, an adjustment motor, and an installation top plate. The installation base is fixedly installed on the assembly platform. The lifting seat is slidably installed on the installation base. The telescopic cylinder is fixedly installed on the installation base and its movable end is fixedly connected to the lifting seat. The rotating seat is rotatably installed at the top of the lifting seat. The adjustment motor is fixedly installed on the lifting seat and is power-connected to the rotating seat. The center of the installation top plate is fixedly connected to the rotating seat.

[0014] In some of these embodiments, to ensure that the valve ball installation assembly can effectively clamp the valve ball and assemble it into the valve body, the following technical solutions are provided.

[0015] The valve ball installation assembly includes two groups, and the two groups of valve ball installation assemblies are installed at both ends of the installation top plate in a supporting manner and arranged symmetrically; the valve ball installation assembly includes a positioning rod and a first fixture. The first fixture is assembled on the installation top plate, and the positioning rod is fixedly installed at the center of the first fixture.

[0016] In some of these embodiments, to ensure that the valve cover installation assembly can effectively clamp the valve cover and assemble it at the assembly port of the valve body, and at the same time fix the valve cover to the valve body with the first bolt, the following technical solutions are provided.

[0017] The valve cover installation assembly includes two groups, and the two groups of valve cover installation assemblies are installed at both ends of the installation top plate in a supporting manner and arranged symmetrically; the valve cover installation assembly includes a second fixture, a first synchronous pulley, a first driving motor, a connecting rod, and a first plug connector. The second fixture is assembled on the installation top plate. The first synchronous pulley includes multiple groups rotatably installed on the installation top plate and arranged around the second fixture. Each group of first synchronous pulleys realizes power transmission through a synchronous belt. The first driving motor is fixedly installed on the installation top plate and is power-connected to one group of first synchronous pulleys. The first plug connector is arranged below the installation top plate and is fixedly connected to the first synchronous pulley through a connecting rod.

[0018] In some of these embodiments, to ensure that the valve stem installation assembly can stably assemble the valve stem into the valve body and realize the matching combination of the valve stem with the valve cover and the valve ball, the following technical solutions are provided.

[0019] The valve stem installation assembly includes two groups, and the two groups of valve stem installation assemblies are installed at both ends of the installation top plate in a supporting manner and arranged symmetrically; the valve stem installation assembly includes a third fixture, a first bevel gear, a second bevel gear, and a second driving motor. The third fixture is rotatably installed on the installation top plate. The first bevel gear is fixedly installed on the third fixture. The second driving motor is fixedly installed on the installation top plate and is power-connected to the second bevel gear on it. The first bevel gear is meshed with the second bevel gear.

[0020] In some of these embodiments, to ensure that the gland installation assembly can stably assemble the gland to the valve cover and be matched with the valve stem, the following technical solutions are provided.

[0021] The gland mounting assembly includes two sets, and the two sets of gland mounting assemblies are installed in a supporting manner at both ends of the mounting top plate and are symmetrically arranged; the gland mounting assembly includes a fourth fixture, a second synchronous pulley, a third driving motor, and a second plug connector. The fourth fixture is fixedly installed on the mounting top plate. The second synchronous pulley includes multiple sets rotatably installed on the mounting top plate and arranged around the fourth fixture. Each set of the second synchronous pulleys realizes power transmission through a synchronous belt. The third driving motor is fixedly installed on the mounting top plate and is power-connected to one set of the second synchronous pulleys. The second plug connector is arranged below the mounting top plate and is fixedly connected to the second synchronous pulley.

[0022] In some of the embodiments, in order to ensure that the handwheel mounting assembly can assemble the handwheel housing to the top of the valve stem, the following technical solution is provided.

[0023] The handwheel mounting assembly includes two sets, and the two sets of handwheel mounting assemblies are installed in a supporting manner at both ends of the mounting top plate and are symmetrically arranged; the handwheel mounting assembly includes a fifth fixture, a fourth driving motor, a third bevel gear, a fourth bevel gear, and a third plug connector. The fifth fixture is fixedly installed on the mounting top plate. The third bevel gear is rotatably installed on the mounting top plate. The third plug connector is arranged below the mounting top plate and is fixedly connected to the third bevel gear. The fourth driving motor is fixedly installed on the mounting top plate and is power-connected to the fourth bevel gear, and the third bevel gear is kept meshed with the fourth bevel gear.

[0024] The beneficial effects of the present invention are as follows: The valve body positioning assembly can stably assemble the valve body and fix the valve body in a specific posture. During the operation of the transmission assembly driving the valve body positioning assembly and the valve body thereon, it sequentially passes through the valve ball mounting assembly, the valve cover mounting assembly, the valve stem mounting assembly, the gland mounting assembly, and the handwheel mounting assembly to sequentially assemble the valve ball, the valve cover, the valve stem, the gland, and the handwheel onto the valve body. In summary, the present application can effectively improve the assembly efficiency of the valve, ensure the assembly accuracy of the valve, and effectively save the input of labor costs through the automated assembly method. Description of the Drawings

[0025] Figure 1 It is a structural schematic diagram of the valve to be assembled;

[0026] Figure 2 For the Figure 1 Structural schematic diagram after disassembly;

[0027] Figure 3 It is a structural schematic diagram of the transmission assembly;

[0028] Figure 4 It is a structural schematic diagram of the transmission assembly after removing the installation outer cover;

[0029] Figure 5 It is a structural schematic diagram of the valve body positioning assembly after assembling the valve body;

[0030] Figure 6 It is a schematic cross-sectional structure diagram of the valve body positioning component;

[0031] Figure 7 It is a schematic structural diagram of the valve ball mounting component;

[0032] Figure 8 It is a schematic structural diagram of the valve cover mounting component;

[0033] Figure 9 It is a schematic structural diagram of the valve stem mounting component;

[0034] Figure 10 It is a schematic structural diagram of the gland mounting component;

[0035] Figure 11 It is a schematic structural diagram of the gland mounting component from another perspective;

[0036] Figure 12 It is a schematic structural diagram of the handwheel mounting component;

[0037] Figure 13 It is a schematic structural diagram of the handwheel mounting component from another perspective.

[0038] In the figure: 11 mounting housing, 111 assembly platform, 12 driving roller, 121 driving gear, 13 reduction motor, 14 transmission chain plate, 15 valve body positioning component, 151 nested seat, 1511 nested groove, 1521 mounting sleeve, 1522 positioning pin, 1523 support spring, 1524 spacer ring;

[0039] 21 positioning rod, 22 first fixture;

[0040] 31 second fixture, 32 first synchronous pulley, 33 first driving motor, 34 connecting rod, 35 first plug connector;

[0041] 41 third fixture, 42 first bevel gear, 43 second bevel gear, 44 second driving motor;

[0042] 51 fourth fixture, 52 second synchronous pulley, 53 third driving motor, 54 second plug connector;

[0043] 61 fifth fixture, 62 fourth driving motor, 63 third bevel gear, 64 fourth bevel gear, 65 third plug connector;

[0044] 71 valve body, 711 flange, 712 assembly port, 713 lifting guide rail, 714 large sealing ring;

[0045] 72 valve ball, 721 lifting guide groove, 722 counterbore;

[0046] 73 Valve cover, 731 First bolt, 732 Installation port, 733 Lower small sealing ring;

[0047] 74 Valve stem, 741 Anti-friction pad, 742 Upper small sealing ring, 743 Spline shaft;

[0048] 75 Gland, 751 Insertion port, 752 Second bolt;

[0049] 76 Handwheel, 761 Third bolt;

[0050] 81 Installation base, 82 Telescopic cylinder, 83 Lifting seat, 831 Guide post, 84 Rotating seat, 85 Adjusting motor, 86 Installation top plate. Specific embodiments

[0051] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0052] Please refer to Figures 1-13 and, in combination with the following embodiments, explain the technical solutions of the present application, the operating principles between components, the structure of the valve, and the assembly principle.

[0053] Embodiment 1

[0054] An automatic valve assembly device includes a transmission component and a valve ball installation component, a valve cover installation component, a valve stem installation component, a gland installation component, and a handwheel installation component that are sequentially assembled on the transmission component. The transmission component includes an installation outer cover 11, a driving roller 12, a reduction motor 13, a transmission chain plate 14, and a valve body positioning component 15. The driving roller 12 is rotatably installed in the installation outer cover 11, the reduction motor 13 is fixedly installed on the installation outer cover 11 and is linked with each group of driving rollers 12, the transmission chain plate 14 is wound around the driving roller 12, and the valve body positioning component 15 is evenly assembled on the outer side of the transmission chain plate 14, and the valve body positioning component 15 is used for fixedly installing the valve body 71.

[0055] The valve ball installation component is used to assemble the valve ball 72 into the valve body 71, the valve cover installation component is used to assemble the valve cover 73 to the valve ball 72 equipped with the valve, the valve stem component is used to insert the valve stem 74 into the valve cover 73 and connect it to the valve ball 72, the gland component is used to assemble the gland 75 on the top of the valve cover 73 and position the valve stem 74, and the handwheel installation component is used to assemble the handwheel 76 on the top end of the valve stem 74.

[0056] A strip-shaped through port is opened at the top of the installation outer cover 11 so that the valve body positioning component 15 assembled on the transmission chain plate 14 can extend out of the strip-shaped through port for arrangement, so as to facilitate cooperation with the valve ball installation component, the valve cover installation component, the valve stem installation component, the gland installation component, and the handwheel installation component to complete the automatic assembly work of the valve.

[0057] The transmission chain plate 14 and the driving roller 12 are arranged in the installation outer cover 11. There is enough space inside the installation outer cover 11 to avoid movement interference between the transmission chain plate 14 driving the valve body positioning component 15 thereon and the installation outer cover 11 during operation.

[0058] To ensure that the driving roller 12 drives the transmission chain plate 14 to operate stably under the drive of the reduction motor 13, there are not only meshing teeth evenly distributed on the driving roller 12, and meshing grooves that are matched and meshed with the meshing teeth are arranged on the inner side of the transmission chain plate 14, which can stably transmit the power of the driving roller 12 to the transmission chain plate 14, and then drive the transmission chain plate 14 to rotate stably.

[0059] The upstream end of the transmission component is set as the feeding station for assembling the valve body 71 in a fixed posture on the valve body positioning component 15, and the downstream end of the transmission component is set as the discharging station for removing the assembled valve.

[0060] The valve body positioning component 15 can stably assemble the valve body 71 and fix the valve body 71 in a specific posture. During the operation of the transmission component driving the valve body positioning component 15 and the valve body 71 thereon, it sequentially passes through the valve ball installation component, the valve cover installation component, the valve stem installation component, the gland installation component, and the handwheel installation component to sequentially assemble the valve ball 72, the valve cover 73, the valve stem 74, the gland 75, and the handwheel 76 on the valve body 71. In summary, the present application can effectively improve the assembly efficiency of the valve, ensure the assembly accuracy of the valve, and effectively save the input of labor costs through the automated assembly method.

[0061] Embodiment 2

[0062] To ensure the stable support of the driving roller 12 for the transmission chain plate 14, ensure the operation accuracy of the transmission chain plate 14, and further improve the assembly accuracy of each component of the valve, it is necessary to ensure that the transmission chain plate 14 is in a taut state, and at the same time ensure that the reduction motor 13 can stably transmit the power to each driving roller 12. The following technical solutions are provided.

[0063] The driving roller 12 includes multiple groups arranged side by side on the same horizontal plane. The same ends of each group of driving rollers 12 are fixedly connected with driving sprockets, and each group of driving sprockets realizes chain drive through a chain. The output shaft of the reduction motor 13 is fixedly connected to the axis of one group of driving rollers 12.

[0064] Multiple groups of evenly arranged driving rollers 12 can stably support the transmission chain plate 14, avoid problems such as the middle sinking of the transmission chain plate 14, can effectively improve the accuracy of the operation of the transmission chain plate 14 and the valve body positioning component 15 thereon, and further improve the automatic assembly accuracy of the valve and the yield rate of valve assembly.

[0065] When the reduction motor 13 operates, it drives the driving roller 12 fixedly connected thereto to rotate. Then, through the combination of driving sprockets and chains, it drives each group of driving rollers 12 to rotate synchronously, so as to drive the transmission chain plate 14 to operate stably, and then drive the upper valve body positioning assembly 15 thereon and the valve body 71 assembled thereon to be transmitted stably.

[0066] In order to ensure that the valve body positioning assembly 15 can effectively fix the valve body 71 and enable the valve body 71 to be installed thereon with the assembly port 712 vertically upward, the following technical solutions are provided.

[0067] The valve body positioning assembly 15 includes two sets of nested seats 151 arranged symmetrically and a locking assembly assembled on the nested seats 151. Both ends of the valve body 71 are nested and installed on the nested seats 151, and nested grooves 1511 that are nested and matched with the valve body 71 are provided on the valve body 71. The locking assembly includes an installation sleeve 1521, a positioning pin 1522, and a support spring 1523. The installation sleeve 1521 is fixedly installed on the nested seat 151. The positioning pin 1522 is slidably installed in the installation sleeve 1521 and extends into the nested groove 1511. The support spring 1523 is arranged in the installation sleeve 1521 and wound around the periphery of the positioning pin. Both ends of the support spring 1523 are respectively in contact with the inner wall of the installation sleeve 1521 and the positioning pin 1522.

[0068] The nested seat 151 is provided with a semi-circular nested groove 1511, which can be nested and matched with the tube bodies and flange plates 711 at both ends of the valve body 71, so that the valve body 71 can be stably placed on the nested seat 151. At the same time, due to the semi-circular setting, the upper part of the nested groove 1511 is open, which is convenient for assembling the valve body 71 on the valve body positioning assembly 15 or removing the assembled valve from the valve body positioning assembly 15.

[0069] A cushion ring 1524 is fixedly connected to the positioning pin 1522. The cushion ring 1524 is arranged in the installation sleeve 1521, and the support spring 1523 is in contact with the cushion ring 1524. In the natural state, the elastic force of the support spring 1523 can drive the positioning pin 1522 to slide outward of the installation sleeve 1521 and extend into the nested groove 1511.

[0070] The two sets of independently designed nested seats 151 can stably install the nested seats 151 on a single set of chain plates on the transmission chain plate 14, avoiding affecting the operation of the chain plates due to the limitation of the nested seats 151.

[0071] When the valve body 71 is assembled on the two sets of nested seats 151 and its assembly port 712 is arranged vertically upward, the through holes on the flange plates 711 at both ends are arranged opposite to the locking assembly, so that the positioning pin 1522 can be stably inserted into the corresponding through holes and the whole valve body 71 can be fixed.

[0072] In order to facilitate the control of the locking assembly, an electric telescopic cylinder 82 may be mounted on the mounting sleeve 1521 , and the movement state of the positioning pin 1522 may be controlled by the electric telescopic cylinder 82 .

[0073] Example 3

[0074] In order to ensure that the valve ball mounting assembly, valve cover mounting assembly, valve stem mounting assembly, pressure cover mounting assembly and handwheel mounting assembly are stably assembled on the mounting cover 11 of the transmission assembly, so as to assemble the remaining components in the valve body 71 transported on the transmission chain plate 14, and at the same time be able to control the lifting and lowering status of the valve ball mounting assembly, valve cover mounting assembly, valve stem mounting assembly, pressure cover mounting assembly and handwheel mounting assembly, the following technical solution is provided.

[0075] An assembly platform is fixedly connected to one side of the installation housing 11, and a plurality of sets of dual-axis operation components are mounted on the assembly platform. The valve ball mounting component, the valve cover mounting component, the valve stem mounting component, the gland mounting component, and the handwheel mounting component are all mounted on the dual-axis operation component.

[0076] The dual-axis operation assembly includes a mounting base 81, a telescopic cylinder 82, a lifting seat 83, a rotating seat 84, an adjusting motor 85, and a mounting top plate 86. The mounting base 81 is fixedly mounted on the assembly platform and the lifting seat 83 is slidably mounted on the mounting base 81. The telescopic cylinder 82 is fixedly mounted on the mounting base 81 and the movable end is fixedly connected to the lifting seat 83. The rotating seat 84 is rotatably mounted on the top of the lifting seat 83. The adjusting motor 85 is fixedly mounted on the lifting seat 83 and is power-connected to the rotating seat 84. The center of the mounting top plate 86 is fixedly connected to the rotating seat 84.

[0077] The setting of the assembly platform can ensure the stable installation of the dual-axis running components and the valve ball mounting components, valve cover mounting components, valve stem mounting components, pressure cover mounting components, and handwheel mounting components assembled on each group of dual-axis running components, and with the cooperation of each mounting component with the transmission chain plate 14 and the valve body positioning component 15, the valve ball 72, valve cover 73, valve stem 74, pressure cover 75, and handwheel 76 are sequentially assembled to the valve body 71 to assemble a complete valve.

[0078] When the assembly port 712 of the valve body 71 is arranged upward, since the valve ball 72, valve cover 73, valve stem 74, pressure cover 75 and handwheel 76 all need to be assembled from top to bottom, when the lifting seat 83 is driven to operate by the telescopic cylinder 82, the valve ball mounting assembly, valve cover mounting assembly, valve stem mounting assembly, pressure cover mounting assembly and handwheel mounting assembly assembled thereon can be synchronously driven to stably lift and lower, so as to assemble the valve ball 72, valve cover 73, valve stem 74, pressure cover 75 and handwheel 76 fixed thereon from top to bottom.

[0079] To ensure that the lifting seat 83 can move up and down stably on the mounting base 81, multiple groups of guide columns 831 are fixedly connected to the bottom of the lifting seat 83, and the guide columns 831 are slidably inserted into the mounting base 81. During the process of the telescopic cylinder 82 driving the lifting seat 83 to move up and down stably, the guide columns 831 can improve the running stability.

[0080] Two corresponding number mounting components, valve cover mounting components, valve stem mounting components, gland mounting components, and handwheel mounting components are assembled on each group of double-axis operating components. When one group is arranged facing the valve body 71 and the installation work of the corresponding components is carried out, the corresponding mounting components controlled by the other group can clamp the valve ball 72, valve cover 73, valve stem 74, gland 75, and handwheel 76, which can effectively shorten the assembly time. Therefore, the adjustment motor 85, rotating seat 84, and mounting top plate 86 assembled on the lifting seat 83 can drive each mounting component to rotate stably to switch the position states of the two groups of corresponding mounting components.

[0081] Embodiment 4

[0082] When assembling the valve body 71, valve ball 72, valve cover 73, valve stem 74, gland 75, and handwheel 76 in combination, the valve ball 72 is assembled in the valve body 71 in a manner of sliding in the vertical direction. Therefore, lifting guide rails 713 are provided on both sides of the inner cavity of the valve body 71, and lifting guide grooves 721 matching the lifting guide rails 713 are provided on both sides of the valve ball 72, which can ensure that the valve ball 72 moves up and down stably in the valve body 71 to control the opening and closing state of the valve.

[0083] A counterbore 722 is also opened at the center of the top of the valve ball 72, and internal threads are provided on the inner wall of the counterbore 722. Multiple first bolts 731 are inserted into the edge of the valve cover 73. By using the first bolts 731 to assemble the valve cover 73 at the assembly port 712, while plugging the assembly head, it can ensure that the valve ball 72 is stably installed in the valve body 71. To avoid leakage at the connection between the valve cover 73 and the assembly port 712, a large sealing ring 714 is nested on the assembly port 712. After the valve cover 73 and the valve body 71 are assembled, the large sealing ring 714 can effectively seal the connection between the two, and before assembly, the large sealing ring 714 is pre-assembled at the assembly port 712 of the valve body 71.

[0084] An installation through-hole 732 is opened at the top of the valve cover 73, and an antifriction pad 741 nested and combined with the installation through-hole is fixedly connected to the valve stem 74. External threads adapted to the internal threads are provided at the bottom end of the valve stem 74. The valve stem 74 extends into the inner side of the installation through-hole 732 and is screwed with the internal threads in the counterbore 722, and the antifriction pad 741 is rotatably installed in the installation through-hole 732. By rotating the valve stem 74, the valve ball 72 can be effectively driven to move up and down stably along the lifting guide rails 713, thereby controlling the opening and closing state of the valve.

[0085] An insertion interface 751 is provided at the center of the gland 75, which can ensure the stable passing of the valve stem 74, so that the gland 75 is assembled above the valve cover 73 and restricts the axial movement of the valve stem 74. A plurality of groups of second bolts 752 are inserted around the gland 75, and the second bolts 752 are screwed onto the top end of the valve cover 73 to fix the gland 75 to the valve cover 73.

[0086] To ensure the sealing performance at the joints of the gland 75, the valve cover 73, and the wear-reducing pad 741, an upper small sealing ring 742 and a lower small sealing ring 733 are respectively nested between the gland 75 and the wear-reducing pad 741, and between the installation port 732 and the wear-reducing pad 741. When assembling the valve, the upper small sealing ring 742 is pre-assembled on the wear-reducing pad 741, and the lower small sealing ring 733 is pre-assembled at the installation port 732 inside the valve cover 73.

[0087] A spline shaft 743 is fixedly connected to the top end of the valve stem 74, and the diameter of the spline shaft 743 is smaller than that of the valve stem 74 to ensure that the insertion interface 751 on the gland 75 can be inserted onto the valve stem 74 from above. A spline groove for nesting and inserting with the spline shaft 743 is provided at the center of the handwheel 76. A third bolt 761 extending into the inner side of the spline groove is also inserted at the center of the handwheel 76. The handwheel 76 can be assembled onto the valve stem 74 from above and nested and inserted with the spline shaft 743, and the third bolt 761 is screwed into the axis of the spline shaft 743 to fixedly install the handwheel 76 on the valve stem 74. By rotating the handwheel 76, the valve stem 74 can be stably rotated, thereby driving the valve ball 72 to move up and down in the valve body 71 to control the opening and closing state of the valve.

[0088] When applying the automatic assembly equipment provided by the present application to assemble the valve, the first bolt 731 is assembled on the valve cover 73, the second bolt 752 is pre-assembled on the gland 75, and the third bolt 761 is pre-assembled on the handwheel 76.

[0089] Embodiment 5

[0090] To ensure that the valve ball installation assembly can effectively clamp the valve ball 72 and assemble it into the valve body 71, the following technical solutions are provided.

[0091] There are two groups of valve ball installation assemblies, and the two groups of valve ball installation assemblies are installed at both ends of the installation top plate 86 in a supporting manner and arranged symmetrically; the valve ball installation assembly includes a positioning rod 21 and a first fixture 22. The first fixture 22 is assembled on the installation top plate 86, and the positioning rod 21 is fixedly installed at the center of the first fixture 22.

[0092] The two sets of jaws of the first fixture 22 are designed to fit the lifting guide grooves 721 on the valve ball 72, and can stably clamp the valve ball 72 in the clamped state. When picking up the valve ball 72, the positioning rod 21 is inserted into the counterbore 722 at the center of the valve ball 72 to stably assemble the valve ball 72 on the valve ball mounting assembly, and at the same time ensure that the valve ball 72 can be stably assembled from top to bottom in the valve body 71.

[0093] Two sets of racks are fixedly connected to the two sets of jaws of the first fixture 22. A gear that meshes with the two sets of racks is rotatably installed between the two sets of racks. When the motor assembled in the first fixture 22 drives the gear to rotate, it can drive the two sets of racks to move symmetrically, so as to realize the approach or separation of the two sets of jaws from each other, and stably pick up the valve ball 72.

[0094] Embodiment 6

[0095] To ensure that the valve cover mounting assembly can effectively pick up the valve cover 73 and assemble it at the assembly port 712 of the valve body 71, and at the same time fix the valve cover 73 and the valve body 71 with the first bolt 731, the following technical solutions are provided.

[0096] The valve cover mounting assembly includes two sets, and the two sets of valve cover mounting assemblies are installed at both ends of the mounting top plate 86 in a supporting manner and are symmetrically arranged; the valve cover mounting assembly includes a second fixture 31, a first synchronous pulley 32, a first driving motor 33, a connecting rod 34, and a first plug connector 35. The second fixture 31 is assembled on the mounting top plate 86. The first synchronous pulley 32 includes multiple sets that are rotatably installed on the mounting top plate 86 and arranged outside the second fixture 31. Each set of first synchronous pulleys 32 realizes power transmission through a synchronous belt. The first driving motor 33 is fixedly installed on the mounting top plate 86 and is power-connected to one of the first synchronous pulleys 32. The first plug connector 35 is arranged below the mounting top plate 86 and is fixedly connected to the first synchronous pulley 32 through the connecting rod 34.

[0097] When the second fixture 31 fixes the valve cover 73, the second fixture 31 is inserted into the mounting through-hole 732 at the center of the valve cover 73, and the jaws thereon are clamped below the mounting through-hole 732 to stably mount the valve cover 73 on the second fixture 31. The jaws of the second fixture 31 are assembled in a sliding and telescopic manner. The telescopic cylinder assembled therein drives each group of jaws to synchronously expand and contract, and can accurately control the picking and placing of the valve cover 73.

[0098] The first socket joints 35 of each group are adapted to the hexagonal countersunk grooves of the first bolts 731. When the valve cover installation assembly drives the valve cover 73 and the first bolts 731 assembled thereon to be installed on the valve body 71, the biaxial operation assembly drives the valve cover 73 to descend and be assembled on the valve body 71. At the same time, the first drive motor 33 is controlled to work to drive the first synchronous wheels 32 of each group to run synchronously, and the first bolts 731 of each group are screwed onto the valve body 71 through the first socket joints 35, so as to realize the fixed combination of the valve cover 73 and the valve body 71.

[0099] Embodiment 7

[0100] To ensure that the valve stem installation assembly can stably assemble the valve stem 74 into the valve body 71 and realize the matching combination of the valve stem 74 with the valve cover 73 and the valve ball 72, the following technical solutions are provided.

[0101] The valve stem installation assembly includes two groups, and the two groups of valve stem installation assemblies are installed at both ends of the installation top plate 86 in a supporting manner and are symmetrically arranged; the valve stem installation assembly includes a third fixture 41, a first bevel gear 42, a second bevel gear 43, and a second drive motor 44. The third fixture 41 is rotatably installed on the installation top plate 86, the first bevel gear 42 is fixedly installed on the third fixture 41, the second drive motor 44 is fixedly installed on the installation top plate 86 and a second bevel gear 43 is power-connected thereto, and the first bevel gear 42 and the second bevel gear 43 are kept meshing.

[0102] A spline groove adapted to the spline shaft 743 at the top end of the valve stem 74 is provided at the center of the third fixture 41, which can ensure that the third fixture 41 and the valve stem 74 rotate synchronously. The third fixture 41 adopts a common chuck on the market. By synchronously running the chucks on the chuck inward, the valve stem 74 can be stably clamped and fixed.

[0103] When the second drive motor 44 drives the second bevel gear 43 to rotate, it further drives the first bevel gear 42 and the third fixture 41 to rotate synchronously, thereby driving the spline shaft 743 to rotate stably. The supporting biaxial operation assembly can drive the valve stem 74 to stably lift and lower, so that the wear-reducing pad 741 on the valve stem 74 is assembled in the installation through-hole 732 of the valve cover 73. At the same time, during the rotation of the valve stem 74, the valve stem 74 and the valve ball 72 can be screwed and combined.

[0104] Embodiment 8

[0105] To ensure that the gland installation assembly can stably assemble the gland 75 onto the valve cover 73 and be matched with the valve stem 74, the following technical solutions are provided.

[0106] There are two sets of gland installation components, and the two sets of gland installation components are installed in a supporting manner at both ends of the installation top plate 86 and are symmetrically arranged; the gland installation component includes a fourth fixture 51, a second synchronous pulley 52, a third driving motor 53, and a second plug connector 54. The fourth fixture 51 is fixedly installed on the installation top plate 86. The second synchronous pulley 52 includes multiple groups that are rotatably installed on the installation top plate 86 and arranged around the fourth fixture 51. Each group of second synchronous pulleys 52 realizes power transmission through a synchronous belt. The third driving motor 53 is fixedly installed on the installation top plate 86 and is power-connected to one group of second synchronous pulleys 52. The second plug connector 54 is arranged below the installation top plate 86 and is fixedly connected to the second synchronous pulley 52.

[0107] A through groove is provided at the center of the fourth fixture 51, which can avoid movement interference between the gland 75 and the valve stem 74 when the gland 75 is assembled to the valve cover 73. The third fixture 41 also uses a common chuck on the market. The chucks on the chuck move synchronously inward, and can stably clamp and fix the outer edge of the gland 75.

[0108] Each group of second plug connectors 54 is adapted to the hexagonal counterbore of the second bolt 752. When the gland installation component drives the gland 75 and the second bolt 752 assembled thereon to be installed on the valve cover 73, the double-axis operation component drives the gland 75 to descend and be assembled to the valve cover 73. At the same time, the third driving motor 53 is controlled to work to drive each group of second synchronous pulleys 52 to run synchronously, and each group of second bolts 752 is screwed onto the valve cover 73 through the second plug connector 54 to realize the fixed combination of the valve cover 73 and the gland 75.

[0109] Embodiment 9

[0110] To ensure that the handwheel installation component can assemble the handwheel 76 indoors to the top of the valve stem 74, the following technical solutions are provided.

[0111] The handwheel installation component includes two sets, and the two sets of handwheel installation components are installed in a supporting manner at both ends of the installation top plate 86 and are symmetrically arranged; the handwheel installation component includes a fifth fixture 61, a fourth driving motor 62, a third bevel gear 63, a fourth bevel gear 64, and a third plug connector 65. The fifth fixture 61 is fixedly installed on the installation top plate 86. The third bevel gear 63 is rotatably installed on the installation top plate 86. The third plug connector 65 is arranged below the installation top plate 86 and is fixedly connected to the third bevel gear 63. The fourth driving motor 62 is fixedly installed on the installation top plate 86 and is power-connected to the fourth bevel gear 64, and the third bevel gear 63 and the fourth bevel gear 64 are kept meshing.

[0112] The fifth fixture 61 adopts the same operation form as the first fixture 22, which is equivalent to three groups of first fixtures 22 being assembled in a circular array to effectively fix the handwheel 76, thereby ensuring that the handwheel 76 is stably assembled on the spline shaft 743 at the top of the valve stem 74.

[0113] The third socket 65 is adapted to the hexagonal counterbore of the third bolt 761. When the handwheel mounting assembly drives the handwheel 76 to be assembled onto the valve stem 74, the fourth drive motor 62 is controlled to operate to drive the fourth bevel gear, the third bevel gear 63 and the third socket 65 to run, so that the third bolt 761 is assembled into the spline shaft 743 at the top end of the valve stem 74, realizing the assembly of the valve stem 74 and the handwheel 76.

[0114] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0115] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A valve automatic assembly equipment, characterized in that: It comprises a transmission component and a valve ball mounting component, a valve cover mounting component, a valve stem mounting component, a gland mounting component and a handwheel mounting component which are sequentially assembled on the transmission component. The transmission component comprises an installation cover (11), a transmission roller (12), a reduction motor (13), a transmission chain plate (14) and a valve body positioning component (15). The transmission roller (12) is rotatably mounted in the installation cover (11). The reduction motor (13) is fixedly mounted on the installation cover (11) and keeps linkage with each group of transmission rollers (12). The transmission chain plate (14) is wound on the transmission roller (12). The valve body positioning component (15) is evenly assembled on the outer side surface of the transmission chain plate (14), and the valve body positioning component (15) is used for fixedly mounting the valve body (71). An assembly platform is fixedly connected to one side of the installation cover (11), and a plurality of sets of dual-axis operation components are matched and installed on the assembly platform. The valve ball installation component, the valve cover installation component, the valve stem installation component, the pressure cover installation component, and the handwheel installation component are all installed on the dual-axis operation component; the dual-axis operation component comprises a mounting base (81), a telescopic cylinder (82), a lifting seat (83), a rotating seat (84), an adjusting motor (85), and a mounting top plate (86); the mounting base (81) is fixedly mounted on the assembly platform, the lifting seat (83) is slidably mounted on the mounting base (81), the telescopic cylinder (82) is fixedly mounted on the mounting base (81) and the movable end is fixedly connected to the lifting seat (83), the rotating seat (84) is rotatably mounted on the top of the lifting seat (83), the adjusting motor (85) is fixedly mounted on the lifting seat (83) and is dynamically connected to the rotating seat (84), and the center of the mounting top plate (86) is fixedly connected to the rotating seat (84); The valve ball installation assembly is used to assemble the valve ball (72) into the valve body (71); the valve cover installation assembly is used to assemble the valve cover (73) to the valve ball (72) equipped with the valve; the valve stem installation assembly is used to install the valve stem (74) from the valve cover (73) and connect it with the valve ball (72); the gland installation assembly is used to assemble the gland (75) on the top of the valve cover (73) and position the valve stem (74); the hand wheel installation assembly is used to assemble the hand wheel (76) on the top of the valve stem (74); The valve cover mounting assembly comprises a first synchronous wheel (32), a first drive motor (33), a connecting rod (34), and a first plug connector (35); the first synchronous wheel (32) is rotatably mounted on the mounting top plate (86); each group of first synchronous wheels (32) realizes power transmission through a synchronous belt; the first drive motor (33) is fixedly mounted on the mounting top plate (86) and is power-connected to one group of first synchronous wheels (32); the first plug connector (35) is arranged below the mounting top plate (86) and is fixedly connected to the first synchronous wheel (32) through the connecting rod (34); The gland installation assembly comprises a second synchronous wheel (52), a third drive motor (53), and a second plug connector (54); the second synchronous wheel (52) is rotatably installed on the installation top plate (86); each group of second synchronous wheels (52) realizes power transmission through a synchronous belt; the third drive motor (53) is fixedly installed on the installation top plate (86) and is power-connected to one group of second synchronous wheels (52); the second plug connector (54) is arranged below the installation top plate (86) and is fixedly connected to the second synchronous wheel (52).

2. The valve automatic assembly equipment according to claim 1, characterized in that: The transmission rollers (12) include a plurality of groups arranged side by side on the same horizontal plane, and the same end of each group of transmission rollers (12) is fixedly connected to a transmission sprocket, and each group of transmission sprockets realizes chain transmission through a chain, and the output shaft of the reduction motor (13) is fixedly connected to the axis of one group of transmission rollers (12).

3. The valve automatic assembly equipment according to claim 1, characterized in that: The valve body positioning assembly (15) comprises two groups of nesting seats (151) arranged symmetrically and a locking assembly assembled on the nesting seats (151); the two ends of the valve body (71) are nested and installed on the nesting seats (151); and the nesting seats (151) are provided with nesting grooves (1511) in which the valve body (71) is nested and matched; the locking assembly comprises a mounting sleeve (1521), a positioning pin (1522), and a support spring (1523); the mounting sleeve (1521) is fixedly mounted on the nesting seat (151); the positioning pin (1522) is slidably mounted in the mounting sleeve (1521) and extends into the nesting groove (1511); the support spring (1523) is arranged in the mounting sleeve (1521) and is wound around the periphery of the positioning effect; and the two ends of the support spring (1523) are respectively in contact with the inner wall of the mounting sleeve (1521) and the positioning pin (1522).

4. The valve automatic assembly equipment according to claim 1, characterized in that: The valve ball mounting assembly includes two groups, and the two groups of valve ball mounting assemblies are matched and installed at both ends of the mounting top plate (86) and maintained in a symmetrical arrangement; the valve ball mounting assembly includes a positioning rod (21) and a first clamp (22), the first clamp (22) is assembled on the mounting top plate (86), and the positioning rod (21) is fixedly installed at the center of the first clamp (22).

5. The valve automatic assembly equipment according to claim 1, characterized in that: The valve cover installation assembly includes two groups, and the two groups of valve cover installation assemblies are matched and installed at both ends of the installation top plate (86) and maintained in a symmetrical arrangement; the valve cover installation assembly also includes a second clamp (31), the second clamp (31) is assembled on the installation top plate (86), and the first synchronous wheel (32) includes multiple groups arranged on the periphery of the second clamp (31).

6. The valve automatic assembly equipment according to claim 1, characterized in that: The valve stem mounting assembly includes two groups, and the two groups of valve stem mounting assemblies are matched and installed at both ends of the mounting top plate (86) and are kept symmetrically arranged; the valve stem mounting assembly includes a third clamp (41), a first bevel gear (42), a second bevel gear (43), and a second drive motor (44); the third clamp (41) is rotatably installed on the mounting top plate (86), the first bevel gear (42) is fixedly installed on the third clamp (41), the second drive motor (44) is fixedly installed on the mounting top plate (86) and is dynamically connected to the second bevel gear (43), and the first bevel gear (42) and the second bevel gear (43) are kept in meshing.

7. The valve automatic assembly equipment according to claim 1, characterized in that: The gland installation assembly includes two groups, and the two groups of gland installation assemblies are matched and installed at both ends of the installation top plate (86) and are kept symmetrically arranged; the gland installation assembly also includes a fourth clamp (51), the fourth clamp (51) is fixedly installed on the installation top plate (86), and the second synchronous wheel (52) includes multiple groups arranged on the periphery of the fourth clamp (51).

8. The valve automatic assembly equipment according to claim 1, characterized in that: The handwheel mounting assembly comprises two groups, and the two groups of handwheel mounting assemblies are matched and mounted at both ends of the mounting top plate (86) and are symmetrically arranged; the handwheel mounting assembly comprises a fifth clamp (61), a fourth drive motor (62), a third bevel gear (63), a fourth bevel gear (64), and a third plug connector (65); the fifth clamp (61) is fixedly mounted on the mounting top plate (86); the third bevel gear (63) is rotatably mounted on the mounting top plate (86); the third plug connector (65) is arranged below the mounting top plate (86) and is fixedly connected to the third bevel gear (63); the fourth drive motor (62) is fixedly mounted on the mounting top plate (86) and is dynamically connected to the fourth bevel gear (64); and the third bevel gear (63) is meshed with the fourth bevel gear (64).

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