A valve core turning control system

Abstract

The application discloses a valve core turning control system and relates to the technical field of valve core turning.The gas pushing assembly is slidably arranged in the hollow positioning cylinder, the inner support clamping assembly is arranged in the hollow positioning cylinder in a ring array, and the inner support clamping assembly is slidably connected with the gas pushing assembly; the axial movement of the gas pushing assembly drives the radial movement of each inner support clamping assembly; the self-expanding and self-contracting pushing mechanism is slidably arranged between the spherical guide plate II and the spherical guide plate I, and the self-expanding and self-contracting pushing mechanism comprises a guide ball which slides against the surface of the spherical guide plate I.The trajectory switching mechanism drives the material taking mechanism to change from direction I to direction II which is perpendicular to direction I, so that the active material taking part is connected with the valve core; after the valve core is pushed into the active material taking part by the discharging push rod, the valve core which has completed the turning process is taken off, and a valve core preliminary blank which is to be processed is sleeved again, so that the turning process is automated, and the problem that the valve core is damaged is effectively avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of valve core turning, and particularly relates to a valve core turning control system. BACKGROUND

[0002] The ball valve refers to a valve in which a ball-shaped valve core is driven by a valve rod and rotates around the ball valve axis, and the ball valve can be used for fluid regulation and control. The ball valve usually comprises a valve body, a valve core and a valve rod. The valve core needs to be turned during machining, which requires the use of a valve core turning machine. The small and light ball valve is a valve with compact structure, light weight and flexible operation, which is widely used in the fields of instruments and meters, medical equipment, food and beverage, semiconductor and small fluid control system.

[0003] During the turning machining of the small and light ball valve, the turning machining process usually comprises forming turning machining and finish turning machining. After the metal material is turned into a ball-shaped valve core blank by forming turning machining, the valve core blank is subjected to finish turning machining to obtain the valve core. However, the existing valve core turning machine directly pushes the finished valve core away from the lathe spindle and drops it after finishing machining, which easily causes the finished valve core to be damaged by collision, and the valve core turning machining process cannot be automated. SUMMARY

[0004] The valve core turning control system of the application solves the problems in the background art through the structural design of the turning mechanism, the air expansion clamping mechanism, the material taking control mechanism, the track switching mechanism, the material taking mechanism, the self-extending and retracting pushing mechanism, the moving frame and the guide assembly.

[0005] To solve the above technical problems, the present application is realized by the following technical scheme: the present application is a valve core turning control system, which comprises a turning subsystem and a material taking subsystem; wherein, the turning subsystem comprises a turning mechanism, the turning mechanism comprises a turning turntable arranged below a turning station, a turning tool is installed on a tool feeding seat arranged on the turning turntable; an air expansion clamping mechanism, the air expansion clamping mechanism comprises a turning power assembly, an air pushing assembly and an inner support clamping assembly, the turning power assembly comprises a hollow positioning cylinder which is in close contact with the inner wall of the valve core and a discharging push rod; the air pushing assembly is slidingly arranged inside the hollow positioning cylinder, the inner support clamping assembly is arranged in an annular array inside the hollow positioning cylinder, and the inner support clamping assembly and the air pushing assembly are slidingly matched, the air pushing assembly is axially moved to drive the radial movement of each inner support clamping assembly; the material taking subsystem comprises a material taking control mechanism, the material taking control mechanism comprises a spherical guide plate one; a track switching mechanism is slidingly arranged on the top of the material taking control mechanism, the track switching mechanism comprises a spherical guide plate two; a material taking mechanism is slidingly arranged on the top of the material taking control mechanism, the material taking mechanism comprises a movable material taking part which is in close contact with the spherical guide plate two; a self-expanding pushing mechanism is slidingly arranged between the spherical guide plate two and the spherical guide plate one, the self-expanding pushing mechanism comprises a guide ball which is in close contact with the surface of the spherical guide plate one and slidingly arranged.

[0006] In this embodiment of the present application, the material taking control mechanism further comprises a material taking rack for fixing the spherical guide plate one, the top of the material taking rack is respectively provided with a limiting groove and a guide channel, a material taking control screw is rotatably arranged on the inner side of the material taking rack, a material taking motor connected with the material taking control screw is arranged on one side of the material taking rack, and a guide slide is arranged on the surface of the spherical guide plate one.

[0007] In this embodiment of the present application, the track switching mechanism further comprises a moving seat which is slidingly matched with the guide channel, the moving seat is sleeved on the material taking control screw and is threadedly matched with the material taking control screw, the spherical guide plate two is fixed on the top of the moving seat, a spherical guide groove is arranged on the side of the spherical guide plate two close to the limiting groove, a horizontal through hole is arranged on the spherical guide plate two and is in communication with the spherical guide groove, and a reset push plate is fixed on the side of the spherical guide plate two close to the limiting groove.

[0008] In this embodiment of the present application, the self-expanding pushing mechanism further comprises an advancing push plate which is slidingly matched in the horizontal through hole, a support rod is fixed on one side of the advancing push plate and penetrates through the guide slide, the guide ball is fixed on the circumferential surface of the support rod and is in close contact with the side of the spherical guide plate one away from the spherical guide plate two, a moving frame is slidingly arranged on one side of the material taking rack, the support rod slidingly penetrates through the moving frame, and a connecting disc fixed on the support rod is connected with the moving frame through an elastic element.

[0009] In the embodiment of the present application, the material taking mechanism further comprises a material taking carrier in sliding connection with the limiting groove, the movable material taking part is slidingly arranged on the material taking carrier and the ball at the end of the movable material taking part abuts against the inside of the ball guide groove, and the movable material taking part and the material taking carrier are connected through the elastic element.

[0010] In the embodiment of the present application, the turning mechanism further comprises a turning rack one and a turning rack two in fixed connection, the turning motor one is installed on the turning rack two, the turning turntable is connected with the output shaft of the turning motor one, the feeding cylinder is installed on the fixed cylinder seat on the top of the turning turntable, the cutter feeding seat is slidingly arranged on the top of the turning turntable and connected with the feeding cylinder, and the double-inclined-surface cover is fixed on one side of the cutter feeding seat.

[0011] In the embodiment of the present application, the inside of the turning rack one is fixed with an annular bearing seat, two annular sealing grooves are symmetrically formed in the inner wall of the annular bearing seat, the hollow air guide part is fixed on the circumferential surface of the annular bearing seat, the electric telescopic rod is installed on one side of the hollow air guide part, the arc-shaped adapter plate connected with the electric telescopic rod is arranged in the inner cavity of the hollow air guide part, the air supply pipe and the pressure relief pipe are respectively and communicatively arranged on the opposite sides of the hollow air guide part, and the electromagnetic valves are installed on the air supply pipe and the pressure relief pipe.

[0012] In the embodiment of the present application, the turning power assembly further comprises a support ring abutting against the inner wall of the annular bearing seat, the sealing ring matched with the annular sealing groove is fixed on the circumferential surface of the support ring, the turning power shaft concentric with the support ring is arranged on the inside of the support ring, the turning power shaft is rotationally connected with the turning rack one, the turning motor two connected with the turning power shaft is installed on the turning rack one, the hollow positioning cylinder is fixed on the end of the turning power shaft, and the air guide channel in communication with the hollow positioning cylinder is arranged in the turning power shaft; the support piece one and the support piece two in communication with the air guide channel are fixed on the inner wall of the support ring, the axial air guide pipe fixed with the turning power shaft is communicatively arranged on the support piece two, the valve core positioning part is fixed on the turning power shaft close to the hollow positioning cylinder, the unloading push rod is slidingly arranged in the axial air guide pipe and penetrates through the valve core positioning part, the connecting disc fixed on the unloading push rod is connected with the valve core positioning part through the elastic element, and the mounting cavities are annularly arranged on the circumferential surface of the hollow positioning cylinder.

[0013] In the embodiment of the present application, the air pushing assembly comprises a conical air pushing part arranged in the hollow positioning cylinder, a piston member is arranged in the air guide channel and fixed with the conical air pushing part, a limiting disc fixed at the end of the conical air pushing part is in sliding fit with the limiting track on the inner wall of the hollow positioning cylinder, an elastic element connected with the limiting disc is arranged in the hollow positioning cylinder, a force-receiving retracting rod penetrating through the hollow positioning cylinder is fixed on the surface of the limiting disc, a slanting groove is formed in the peripheral surface of the conical air pushing part, and a radial through hole is arranged in the slanting groove and communicated with the inner cavity of the conical air pushing part; the inner supporting and clamping assembly comprises an inner supporting and clamping member fitted in the mounting cavity, radial rods one and two are respectively fixed on one side of the inner supporting and clamping member, the radial rod one abuts against the inside of the slanting groove, the radial rod two extends into the inner cavity of the conical air pushing part through the radial through hole, and the connecting disc at the end of the radial rod two is connected with the inner wall of the hollow positioning cylinder through the elastic element.

[0014] In the embodiment of the present application, the air expanding clamping mechanism further comprises a guide assembly; wherein the guide assembly comprises concentric guide plugs one and two, the guide plug one is connected with the guide plug two through a guide channel, air vents are formed in the peripheral surfaces of the guide plugs one and two, a connecting piece fixed on the peripheral surface of the guide plug one is in sliding fit with the radial channel on the supporting piece one, and the connecting piece and the fixing piece on the turning power shaft are connected through the elastic element.

[0015] The present application has the following advantages: 1. The linear motion of the track switching mechanism drives the material taking mechanism to move synchronously, so that the material taking mechanism is converted from direction one to direction two perpendicular to direction one, the movable material taking part moving along direction two gradually approaches the turning station and stretches the corresponding elastic element, until the movable material taking part is horizontally inserted into the valve core, so that the interface between the movable material taking part and the valve core is completed, then the valve core released from the inner supporting and clamping is pushed onto the movable material taking part through the unloading push rod, after the track switching mechanism, the material taking mechanism, the self-extending and retracting pushing mechanism and the moving frame are reset, the valve core after turning is removed and a valve core blank to be processed is sleeved, so that the turning process is automated and the problem of damaged valve core is effectively avoided.

[0016] 2. The specific structural design of the turning power assembly enables the turning power assembly after inflation to rotate normally for turning operation, and the gas in the turning power assembly does not leak, compared with the traditional inflation completion relying on the sealing mode of the electromagnetic valve, the problems of electromagnetic valve power supply and centrifugal force influence are not considered, and the power supply problem and the centrifugal force influence problem of the electromagnetic valve in the rotation process are ingeniously solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed for the description of the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 The structural schematic diagram of the valve core turning control system in the present application.

[0019] Figure 2 The structural schematic diagram of the turning mechanism in the present application.

[0020] Figure 3 The structural rear view of Figure 2 .

[0021] Figure 4 The cooperation relationship diagram of the air expansion clamping mechanism and the valve core in the present application.

[0022] Figure 5 The sectional view of the air expansion clamping mechanism in the present application.

[0023] Figure 6 The different state diagram of the conduction assembly in the present application.

[0024] Figure 7 The structural schematic diagram of the turning power assembly in the present application.

[0025] Figure 8 The structural schematic diagram of the air push assembly in the present application.

[0026] Figure 9 The structural schematic diagram of the inner support clamping assembly in the present application.

[0027] Figure 10 The structural schematic diagram of the conduction assembly in the present application.

[0028] Figure 11 The structural schematic diagram of the material taking subsystem in the present application.

[0029] Figure 12 The structural top view of Figure 11 .

[0030] Figure 13 The structural schematic diagram of the material taking control mechanism in the present application.

[0031] Figure 14 The structural schematic diagram of the track switching mechanism in the present application.

[0032] Figure 15 The structural schematic diagram of the material taking mechanism in the present application.

[0033] Figure 16 Structure diagram of self-expanding pushing mechanism in the application.

[0034] In the drawings, the components represented by each reference numeral are listed as follows:

[0035] 1-turnover sub-system, 2-removal sub-system, 3-turnover mechanism, 301-turnover turntable, 302-tool feeding seat, 303-turnover tool, 304-turnover frame one, 305-turnover frame two, 306-turnover motor one, 307-cylinder seat, 308-feeding cylinder, 309-double-bevel cover, 310-annular bearing seat, 311-annular sealing groove, 312-hollow air guide part, 313-electric telescopic rod, 314-arc-shaped adapter plate, 315-air supply pipe, 316-pressure relief pipe, 317-solenoid valve, 318-water inlet pipe, 319-water outlet pipe, 4-air expansion clamping mechanism, 5-turnover power assembly, 501-hollow positioning cylinder, 502-discharging push rod, 503-support ring, 504-sealing ring, 505-turnover power shaft, 506-turnover motor two, 507-support one, 508-support two, 509-axial air guide pipe, 510-valve core positioning part, 511-mounting cavity, 512-radial channel, 6-air pushing assembly, 601-conical air pushing part, 602-piston part, 603-limiting disc, 604-force bearing retraction rod, 605-oblique groove, 606-radial through port, 7-inner support clamping assembly, 701-inner support clamping part, 702-radial displacement rod one, 703-radial displacement rod two, 8-valve core, 9-removal control mechanism, 901-spherical guide plate one, 902-removal frame, 903-limiting groove, 904-guiding channel, 905-removal motor, 906-guiding slide, 10-trajectory switching mechanism, 1001-spherical guide plate two, 1002-moving seat, 1003-spherical guide groove, 1004-horizontal through port, 1005-reset push plate, 11-removal mechanism, 1101-movable removal part, 1102-removal carrier, 12-self-expanding pushing mechanism, 1201-guide ball, 1202-advancing push plate, 1203-supporting rod, 13-moving frame, 14-elastic element, 15-conducting assembly, 1501-conducting plug one, 1502-conducting plug two, 1503-conducting pipeline, 1504-vent, 1505-connection piece. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0037] Specific embodiment one, please refer toFigures 1-16 The application is a valve core turning control system, which comprises a turning subsystem 1 and a material taking subsystem 2; wherein the turning subsystem 1 comprises a turning mechanism 3 and an air expansion clamping mechanism 4; the turning mechanism 3 comprises a turning turntable 301 arranged below a turning station, and a turning tool 303 arranged on a tool feeding seat 302 of the turning turntable 301; the air expansion clamping mechanism 4 comprises a turning power assembly 5, an air pushing assembly 6 and an inner support clamping assembly 7, the turning power assembly 5 comprises a hollow positioning cylinder 501 which is in close contact with the inner wall of a valve core 8 and a discharging push rod 502; the air pushing assembly 6 is slidingly arranged inside the hollow positioning cylinder 501, and the inner support clamping assembly 7 is arranged in an annular array inside the hollow positioning cylinder 501 and is in sliding fit with the air pushing assembly 6, so that the air pushing assembly 6 drives the radial movement of each inner support clamping assembly 7 through axial movement.

[0038] The material taking subsystem 2 comprises a material taking control mechanism 9, a track switching mechanism 10 slidingly arranged on the top of the material taking control mechanism 9, a material taking mechanism 11 slidingly arranged on the top of the material taking control mechanism 9 and a self-extending push moving mechanism 12 slidingly arranged between a spherical guide plate two 1001 and a spherical guide plate one 901, the material taking control mechanism 9 comprises the spherical guide plate one 901, the track switching mechanism 10 comprises the spherical guide plate two 1001, the material taking mechanism 11 comprises a movable material taking part 1101 which is in close contact with the spherical guide plate two 1001, and the self-extending push moving mechanism 12 comprises a guide ball 1201 which is in close contact with the surface of the spherical guide plate one 901.

[0039] In this embodiment of the application, as shown in Figure 13 The material taking control mechanism 9 further comprises a material taking rack 902 for fixing the spherical guide plate one 901 (the material taking rack 902 is arranged on an external fixing table), the top of the material taking rack 902 is respectively provided with a limiting groove 903 and a guide channel 904, a material taking control screw is rotatably arranged on the inner side of the material taking rack 902, a material taking motor 905 connected with the material taking control screw is arranged on one side of the material taking rack 902, and a guide slide 906 is arranged on the surface of the spherical guide plate one 901.

[0040] In this embodiment of the application, as shown in Figure 14 The track switching mechanism 10 further comprises a moving seat 1002 which is in sliding fit with the guide channel 904, the moving seat 1002 is sleeved on the material taking control screw and is in screw fit with the material taking control screw, the spherical guide plate two 1001 is fixed on the top of the moving seat 1002, a spherical guide groove 1003 is arranged on the side of the spherical guide plate two 1001 close to the limiting groove 903, a horizontal through hole 1004 is arranged on the spherical guide plate two 1001 and is in communication with the spherical guide groove 1003, and a reset push plate 1005 is fixed on the side of the spherical guide plate two 1001 close to the limiting groove 903, and the reset push plate 1005 is used for pushing the material taking mechanism 11 back to the initial position.

[0041] In this embodiment of the present application, as shown in Figure 12 and Figure 16 The telescopic push mechanism 12 further comprises an advancing push plate 1202 slidingly fitted inside the horizontal passage 1004, one side of the advancing push plate 1202 is fixed with a support rod 1203 penetrating the guide slide 906, the guide ball 1201 is fixed to the lateral surface of the support rod 1203 and adheres to the side of the first ball guide plate 901 away from the second ball guide plate 1001 (when the guide ball 1201 slides along the inclined surface of the first ball guide plate 901, it can drive the advancing push plate 1202 to slide along the inner wall of the horizontal passage 1004, when the material taking mechanism 11 moves to the position aligned with the turning station, as shown in Figure 12 , the guide ball 1201 just leaves the inclined surface and enters the straight surface), the movable frame 13 is slidingly arranged on one side of the material taking frame 902, the support rod 1203 slidingly penetrates the movable frame 13 (i.e. the support rod 1203 drives the movable frame 13 to move synchronously), the connecting disc fixed on the support rod 1203 is connected with the movable frame 13 through the elastic element 14, and the elastic element 14 ensures that the guide ball 1201 is always tightly adhered to the surface of the first ball guide plate 901.

[0042] In this embodiment of the present application, as shown in Figure 12 and Figure 15 The material taking mechanism 11 further comprises a material taking carrier 1102 slidingly connected with the limiting groove 903 (the material taking carrier 1102 will not be separated from the limiting groove 903), the movable material taking part 1101 is slidingly arranged on the material taking carrier 1102 and the ball at the end of the movable material taking part 1101 is tightly adhered to the inside of the ball guide groove 1003, the movable material taking part 1101 and the material taking carrier 1102 are connected through the elastic element 14, and the elastic element 14 in the initial state is in a natural state, at this time, the ball at the end of the movable material taking part 1101 adheres to the inner wall of the ball guide groove 1003.

[0043] As shown in Figure 12As shown, after the turning of the valve core 8 is completed, the trajectory switching mechanism 10 is moved to the direction close to the taking motor 905 by the taking motor 905 and the taking control screw rod, and since the right side of the advancing push plate 1202 is completely inside the horizontal opening 1004 (i.e. the left side of the advancing push plate 1202 extends to the outside of the horizontal opening 1004) and the advancing push plate 1202 is initially attached to the ball at the end of the movable taking part 1101 (specifically, the ball at the end of the movable taking part 1101 is initially attached between the advancing push plate 1202 and the reset push plate 1005), the advancing push plate 1202 pushes the taking mechanism 11 to move synchronously during the movement of the trajectory switching mechanism 10 to the direction close to the taking motor 905, and since the guide ball 1201 slides along the inclined surface of the ball guide plate one 901, the left side of the advancing push plate 1202 gradually retracts into the horizontal opening 1004 and compresses the corresponding elastic element 14, until the taking carrier 1102 moves from one end to the other end of the limiting groove 903 (i.e. Figure 12 the position shown), at which time the movable taking part 1101 is concentrically aligned with the valve core 8 on the turning station, the guide ball 1201 just slides from the inclined surface of the ball guide plate one 901 to the straight surface, and the left side of the advancing push plate 1202 just dislocates from the ball at the end of the movable taking part 1101 (i.e. the left side of the advancing push plate 1202 just dislocates from the ball at the end of the movable taking part 1101), and the trajectory switching mechanism 10 is continuously moved to the direction close to the taking motor 905 to a set position, during which the trajectory switching mechanism 10 no longer continues to move to the direction close to the taking motor 905, and the ball at the end of the movable taking part 1101 moves along the inclined segment of the ball guide groove 1003 on the ball guide plate two 1001, so that the movable taking part 1101 gradually moves to the direction close to the turning station and stretches the corresponding elastic element 14, until the movable taking part 1101 is horizontally inserted into the valve core 8, so that the connection between the movable taking part 1101 and the valve core 8 is completed, and then the valve core 8 released from the inner supporting clamping is pushed onto the movable taking part 1101 by the unloading push rod 502, and then the trajectory switching mechanism 10 is moved to the initial position by the taking motor 905 and the taking control screw rod, and when the reset push plate 1005 reattaches to the ball at the end of the movable taking part 1101 (during which the ball at the end of the movable taking part 1101 always slides along the inclined segment of the ball guide groove 1003 to the straight segment under the action of the strong elastic restoring force of the elastic element 14 on the taking mechanism 11, and the movable taking part 1101 carrying the valve core 8 is separated from the turning station), the guide ball 1201 just returns to Figure 12In the shown position, the trajectory switching mechanism 10 is then controlled to move in the direction of the initial position, and the reset push plate 1005 pushes the material taking mechanism 11 to move in the direction of the initial position at the same time. In this process, the elastic restoring force of the elastic element 14 on the self-extending and retracting pushing mechanism 12 causes the advancing push plate 1202 to gradually move in the direction of the trajectory switching mechanism 10 to re-adhere to the ball at the end of the movable material taking part 1101, until the trajectory switching mechanism 10, the material taking mechanism 11, the self-extending and retracting pushing mechanism 12 and the moving frame 13 are all reset. After the valve core 8 that has completed the turning process is removed, a valve core rough blank to be processed is sleeved again, and the valve core rough blank to be processed is moved to the turning position according to the same control mode as above. The loading assembly (including a cylinder and a loading push plate, not shown in the figure) on the top of the material taking carrier 1102 pushes the valve core rough blank away from the movable material taking part 1101 to be sleeved on the hollow positioning cylinder 501. After the trajectory switching mechanism 10, the material taking mechanism 11, the self-extending and retracting pushing mechanism 12 and the moving frame 13 are reset again, the turning process of the valve core rough blank can be performed again.

[0044] In the second embodiment, based on the first embodiment, as shown in Figure 2 and Figure 3 The turning mechanism 3 further includes a fixedly connected turning rack one 304 and a turning rack two 305. The turning rack two 305 is provided with a turning motor one 306. The turning turntable 301 is connected with the output shaft of the turning motor one 306. The turning turntable 301 is provided with a feeding cylinder 308 on the fixed cylinder seat 307 on the top. The cutter feeding seat 302 is slidably arranged on the top of the turning turntable 301 and connected with the feeding cylinder 308. The double inclined surface cover 309 is fixed on one side of the cutter feeding seat 302. The double inclined surface cover 309 is used to guide the metal scraps generated in the turning process to the outside of the turning turntable 301.

[0045] Further, the turning rack one 304 is fixedly provided with an annular bearing seat 310. Two annular sealing grooves 311 are symmetrically arranged on the inner wall of the annular bearing seat 310. The annular bearing seat 310 is fixedly provided with a hollow air guide part 312 on the side surface. The hollow air guide part 312 is provided with an electric telescopic rod 313 on one side. The hollow air guide part 312 is provided with an arc-shaped matching plate 314 connected with the electric telescopic rod 313 in the inner cavity. The hollow air guide part 312 is provided with a gas supply pipe 315 and a pressure relief pipe 316 (the gas supply pipe 315 is connected with a gas supply device, and the gas supply device is not shown in the figure) in communication on the opposite sides. The gas supply pipe 315 and the pressure relief pipe 316 are provided with electromagnetic valves 317. In this embodiment, a ring-shaped water guide cavity can be arranged in the annular bearing seat 310. The annular bearing seat 310 is provided with a water inlet pipe 318 and a water outlet pipe 319 in communication on the side surface. The flow in the ring-shaped water guide cavity can be controlled by the water inlet pipe 318 and the water outlet pipe 319 to achieve the cooling of the inner wall of the annular bearing seat 310.

[0046] In this embodiment of the present application, as shown in Figure 5 and Figure 7 The turning power assembly 5 further comprises a support ring 503 attached to the inner wall of the annular bearing seat 310, the circumferential surface of the support ring 503 is fixed with a sealing ring 504 matched with the annular sealing groove 311, the inner side of the support ring 503 is provided with a turning power shaft 505 concentric with it, the turning power shaft 505 is rotationally connected with the first turning frame 304, the first turning frame 304 is provided with a turning motor 506 connected with the turning power shaft 505, the hollow positioning cylinder 501 is fixed to the end of the turning power shaft 505, and the turning power shaft 505 is internally provided with a gas guide channel communicated with the hollow positioning cylinder 501.

[0047] The inner wall of the support ring 503 is fixed with a support piece 507 and a support piece 508 communicated with the gas guide channel, the support piece 508 is provided with an axial gas guide pipe 509 fixed with the turning power shaft 505, the turning power shaft 505 is fixed with a valve core positioning portion 510 close to the hollow positioning cylinder 501, the unloading push rod 502 is slidably arranged in the axial gas guide pipe 509 and penetrates through the valve core positioning portion 510, the connecting disc fixed on the unloading push rod 502 is connected with the valve core positioning portion 510 through the elastic element 14, and the circumferential surface of the hollow positioning cylinder 501 is annularly arrayed with a plurality of mounting cavities 511. Through the above structural design of the turning power assembly 5, the turning power assembly 5 after being inflated can normally rotate for turning work, and the gas in it will not leak. Compared with the conventional mode of sealing by the electromagnetic valve after being inflated, the problems of electromagnetic valve power supply and centrifugal force influence do not need to be considered, thereby ingeniously solving the problems of power supply and centrifugal force influence of the electromagnetic valve in the rotation process.

[0048] In this embodiment of the present application, as shown in Figure 8 and Figure 9 The gas pushing assembly 6 comprises a conical gas pushing portion 601 arranged in the hollow positioning cylinder 501, the gas guide channel is provided with a piston piece 602 fixed with the conical gas pushing portion 601, the end of the conical gas pushing portion 601 is fixed with a limiting disc 603 slidably matched with the limiting track on the inner wall of the hollow positioning cylinder 501 (to ensure that the conical gas pushing portion 601 does not rotate), the inner portion of the hollow positioning cylinder 501 is provided with an elastic element 14 connected with the limiting disc 603, the surface of the limiting disc 603 is fixed with a stress retraction rod 604 slidably penetrating through the hollow positioning cylinder 501, the circumferential surface of the conical gas pushing portion 601 is provided with an inclined groove 605, the inner portion of the inclined groove 605 is provided with a radial opening 606 communicated with the inner cavity of the conical gas pushing portion 601, and the end of the conical gas pushing portion 601 in the initial state is tightly attached to the inner end of the hollow positioning cylinder 501 (as shown in Figure 5 ).

[0049] The inner support clamping assembly 7 comprises an inner support clamping piece 701 fitted in the mounting cavity 511, the inner support clamping piece 701 in the initial state is completely located inside the mounting cavity 511, the inner support clamping piece 701 is fixed with a radial displacement rod one 702 and a radial displacement rod two 703 respectively on one side, the end of the radial displacement rod one 702 abuts against the inside of the inclined channel 605, the radial displacement rod two 703 extends into the inner cavity of the conical air pushing part 601 through the radial through port 606, and the connecting disc at the end of the radial displacement rod two 703 is connected between the inner wall of the hollow positioning cylinder 501 through the elastic element 14.

[0050] In this embodiment of the present application, as shown in Figure 6 and Figure 10 The air inflation clamping mechanism 4 further comprises a guide-through assembly 15; wherein the guide-through assembly 15 comprises concentric guide-through plugs one 1501 and two 1502, the guide-through plug one 1501 and the guide-through plug two 1502 are connected through a guide-through pipeline 1503, the guide-through plug one 1501 and the guide-through plug two 1502 are both provided with air vents 1504 on the side surface, the connecting piece 1505 fixed on the side surface of the guide-through plug one 1501 is in sliding fit with the radial channel 512 on the support piece one 507, the connecting piece 1505 is connected between the fixed piece on the turning power shaft 505 through the elastic element 14, the arc-shaped adaptive plate 314 in the initial state is completely located inside the hollow air guide part 312, the guide-through plug one 1501 is tightly attached to the inner wall of the arc-shaped adaptive plate 314 under the elastic force of the elastic element 14, at this time, only the air vents 1504 on the guide-through plug one 1501 are in communication with the inner cavity of the hollow air guide part 312, while the air vents 1504 on the guide-through plug two 1502 are inside the support piece one 507, and part of the guide-through plug one 1501 is also inside the support piece one 507, that is, at this time, the hollow air guide part 312 is in isolation state with the air guide channel, while the support piece two 508 is in communication state with the air guide channel (as shown in the left state diagram in the middle). Figure 6

[0051] When the valve core preliminary blank is sleeved on the hollow positioning cylinder 501 and abuts against the valve core positioning part 510, the arc-shaped adaptive plate 314 is controlled by the electric telescopic rod 313 to push the guide-through plug one 1501 to move and compress the corresponding elastic element 14, until the guide-through plug one 1501 is pushed to Figure 6 ​In the intermediate state position, the air vent 1504 on the first conducting plug 1501 is still in communication with the inner cavity of the hollow air guide part 312, the air vent 1504 on the second conducting plug 1502 is in communication with the air guide channel, and the second conducting plug 1502 is partially located inside the second support 508, that is, the hollow air guide part 312 is in communication with the air guide channel, while the second support 508 is isolated from the air guide channel. Then, the electromagnetic valve 317 on the air supply pipe 315 is opened, and air is transported into the hollow air guide part 312, so that the air enters the air guide channel along the air vent 1504 on the first conducting plug 1501, the conducting channel 1503, and the air vent 1504 on the second conducting plug 1502. The air entering the air guide channel pushes the piston 602 to move, thereby driving the entire air pushing assembly 6 to move and compress the corresponding elastic element 14. Then, the tapered air pushing part 601 pushes each inner support clamping assembly 7 to move outward synchronously and compress the corresponding elastic element 14, so that each inner support clamping part 701 is attached to the inner wall of the valve core 8. After a certain amount of air is input into the inner cavity of the air guide channel (at this time, the inner part of the air guide channel is in a high-pressure state generated by compressed air, and the electromagnetic valve 317 on the air supply pipe 315 is closed), each inner support clamping part 701 is tightly pressed against the inner wall of the valve core 8 to achieve clamping and fixing of the valve core 8. Then, the arc-shaped adapter plate 314 is controlled by the electric telescopic rod 313 to push the first conducting plug 1501 to move and compress the corresponding elastic element 14, until the first conducting plug 1501 is pushed to the Figure 6 In the right state position, the inner wall of the arc-shaped adapter plate 314 coincides with the inner wall of the annular bearing seat 310.

[0052] Then, the turning disc 301 is controlled to rotate by the turning motor 306, so that the tool feeding seat 302 is rotated to the set position. The turning tool 303 is controlled to move to the turning position by the feeding cylinder 308. Then, the valve core 8 is synchronously rotated by controlling the entire turning power assembly 5 to rotate by the turning motor 2 506. In this process, the turning disc 301 is slowly rotated according to the set program by the turning motor 1 306, and the turning tool 303 completes the turning finishing of the outer surface of the valve core 8. After the turning is completed, the turning power assembly 5 is stopped from rotating, the turning tool 303 is controlled to complete the reset by the feeding cylinder 308, and the turning disc 301 is controlled to complete the reset by the turning motor 1 306. Then, in the process of controlling the movable material taking part 1101 to be horizontally inserted into the valve core 8 to realize the butt joint with the valve core 8, the movable material taking part 1101 counter-presses the stressed retraction rod 604, so that each inner support clamping part 701 synchronously separates from the inner wall of the valve core 8. In this way, the clamping and fixing of the valve core 8 by each inner support clamping part 701 is released.

[0053] Subsequently, the arc-shaped adapter plate 314 is controlled to move reversely by the electric telescopic rod 313 to complete resetting, and the whole conducting assembly 15 is reset by the elastic restoring force of the elastic element 14 on the turning power shaft 505 (i.e. Figure 6 In the left side state diagram, the high-pressure air flow in the air guide channel enters into the axial air guide pipe 509 along the support member two 508 and pushes the unloading push rod 502 to move and compress the corresponding elastic element 14, the unloading push rod 502 under the action of the high-pressure air flow generates a large pushing force on the valve core 8 after being released from clamping, so that the valve core 8 after turning is completely pushed into the movable material taking part 1101, after the movable material taking part 1101 is controlled to be separated from the turning station, the arc-shaped adapter plate 314 is controlled to move by the electric telescopic rod 313 to push the conducting plug one 1501 to the Figure 6 middle state position, then the electromagnetic valve 317 on the pressure relief pipe 316 is opened to complete internal pressure relief of the air guide channel, after the pressure relief is completed, the arc-shaped adapter plate 314 is controlled to move reversely by the electric telescopic rod 313 to complete resetting, and the remaining small amount of air in the axial air guide pipe 509 flows back along the support member two 508 and disperses into the air guide channel, the unloading push rod 502 is reversely reset under the action of the elastic restoring force of the elastic element 14 outside the turning power shaft 505, and each component on the air expansion clamping mechanism 4 is also reset, then the electromagnetic valve 317 on the pressure relief pipe 316 is controlled to be closed, so the whole process of turning is automatically controlled.

[0054] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means 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 present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and limit the present application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the present specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A valve core turning control system, characterized in that, It includes a turning subsystem (1) and a material handling subsystem (2); The turning subsystem (1) includes: Turning mechanism (3), the turning mechanism (3) includes a turning turntable (301) disposed below the turning station, and a turning tool (303) is mounted on a tool feed seat (302) disposed on the turning turntable (301). The pneumatic clamping mechanism (4) includes a turning power assembly (5), a pneumatic push assembly (6), and an inner support clamping assembly (7). The turning power assembly (5) includes a hollow positioning cylinder (501) that fits against the inner wall of the valve core (8) and a discharge push rod (502). The pneumatic propulsion assembly (6) is slidably disposed inside the hollow positioning cylinder (501), and the inner support clamping assembly (7) is arranged in a circumferential array inside the hollow positioning cylinder (501). The inner support clamping assembly (7) and the pneumatic propulsion assembly (6) are slidably engaged. The axial movement of the pneumatic propulsion assembly (6) drives the radial movement of each inner support clamping assembly (7). The material handling subsystem (2) includes: The material handling control mechanism (9) includes a ball guide plate (901) and a material handling frame (902) for fixing the ball guide plate (901). The top of the material handling frame (902) is provided with a limit channel (903) and a guide channel (904). The surface of the ball guide plate (901) is provided with a guide slide (906). A trajectory switching mechanism (10) is slidably disposed on the top of the material handling control mechanism (9), the trajectory switching mechanism (10) including a ball guide plate (1001). A material handling mechanism (11) is slidably disposed on the top of the material handling control mechanism (9). The material handling mechanism (11) includes a movable material handling part (1101) that is close to the second ball guide plate (1001) and a material handling frame (1102) that is slidably connected to the limiting channel (903). The second ball guide plate (1001) has a ball guide groove (1003) with a straight section and an inclined section that is inclined towards the material handling mechanism (11) on the side near the limiting channel (903). The second ball guide plate (1001) has a horizontal opening (1004) that communicates with the ball guide groove (1003). The movable material handling part (1101) is slidably disposed on the material handling frame (1102) and the ball at its end is close to the inside of the ball guide groove (1003). A self-retracting pushing mechanism (12) is slidably disposed between ball guide plate two (1001) and ball guide plate one (901). The self-retracting pushing mechanism (12) includes a guide ball (1201) that slides close to the surface of ball guide plate one (901) and a forward push plate (1202) that slides inside the horizontal port (1004). The forward push plate (1202) that moves synchronously with the trajectory switching mechanism (10) pushes the material taking mechanism (11) to move synchronously until the active material taking part (1101) is concentrically aligned with the valve core (8) on the turning station.

2. The valve core turning control system according to claim 1, characterized in that, The material handling frame (902) is rotatably equipped with a material handling control screw on its inner side, and a material handling motor (905) connected to the material handling control screw is installed on one side of the material handling frame (902).

3. The valve core turning control system according to claim 2, characterized in that, The trajectory switching mechanism (10) further includes a movable seat (1002) that slides with the guide channel (904). The movable seat (1002) is sleeved on the material picking control screw and the two are threaded together. The ball guide plate (1001) is fixed on the top of the movable seat (1002). A reset push plate (1005) is fixed on the side of the ball guide plate (1001) near the limiting channel (903).

4. A valve core turning control system according to claim 3, characterized in that, A support rod (1203) is fixed on one side of the forward push plate (1202) and passes through the guide slide (906). The guide ball (1201) is fixed on the periphery of the support rod (1203) and is attached to the side of the ball guide plate one (901) away from the ball guide plate two (1001). A movable frame (13) is slidably provided on one side of the material handling frame (902). The support rod (1203) slides through the movable frame (13). The connecting plate fixed on the support rod (1203) is connected to the movable frame (13) through an elastic element (14).

5. A valve core turning control system according to claim 4, characterized in that, The active material handling unit (1101) and the material handling carrier (1102) are connected by an elastic element (14).

6. A valve core turning control system according to claim 5, characterized in that, The turning mechanism (3) further includes a turning frame one (304) and a turning frame two (305) fixedly connected. A turning motor one (306) is installed on the turning frame two (305). The turning turntable (301) is connected to the output shaft of the turning motor one (306). A feed cylinder (308) is installed on a cylinder seat (307) fixed on the top of the turning turntable (301). The tool feed seat (302) is slidably disposed on the top of the turning turntable (301) and connected to the feed cylinder (308). A double inclined mask (309) is fixed on one side of the tool feed seat (302).

7. A valve core turning control system according to claim 6, characterized in that, An annular bearing seat (310) is fixed inside the turning machine frame (304). Two annular sealing grooves (311) are symmetrically opened on the inner wall of the annular bearing seat (310). A hollow air guide part (312) is fixed on the periphery of the annular bearing seat (310). An electric telescopic rod (313) is installed on one side of the hollow air guide part (312). An arc-shaped adapter plate (314) connected to the electric telescopic rod (313) is provided in the inner cavity of the hollow air guide part (312). An air supply pipe (315) and a pressure relief pipe (316) are respectively connected to the opposite sides of the hollow air guide part (312). A solenoid valve (317) is installed on both the air supply pipe (315) and the pressure relief pipe (316).

8. A valve core turning control system according to claim 7, characterized in that, The turning power assembly (5) also includes a support ring (503) that fits against the inner wall of the annular bearing seat (310). A sealing ring (504) that cooperates with the annular sealing groove (311) is fixed on the periphery of the support ring (503). A turning power shaft (505) that is concentric with the support ring (503) is provided on the inner side of the support ring (503). The turning power shaft (505) is rotatably connected to the first turning frame (304). A second turning motor (506) that is connected to the turning power shaft (505) is installed on the first turning frame (304). The hollow positioning cylinder (501) is fixed to the end of the turning power shaft (505). An air guide channel that communicates with the hollow positioning cylinder (501) is provided inside the turning power shaft (505). The inner wall of the support ring (503) is fixed with a support member 1 (507) and a support member 2 (508) that communicate with the air guide channel. The support member 2 (508) is connected to an axial air guide pipe (509) that is fixed to the turning power shaft (505). The turning power shaft (505) is fixed with a valve core positioning part (510) close to the hollow positioning cylinder (501). The unloading push rod (502) is slidably disposed inside the axial air guide pipe (509) and passes through the valve core positioning part (510). The connecting plate fixed on the unloading push rod (502) is connected to the valve core positioning part (510) by an elastic element (14). The hollow positioning cylinder (501) has several mounting cavities (511) arranged in a circumferential array on its circumferential side.

9. A valve core turning control system according to claim 8, characterized in that, The pneumatic propulsion assembly (6) includes a conical pneumatic propulsion part (601) disposed inside a hollow positioning cylinder (501). A piston (602) fixed to the conical pneumatic propulsion part (601) is disposed in the air guide channel. A limiting plate (603) fixed at the end of the conical pneumatic propulsion part (601) slides in cooperation with a limiting track on the inner wall of the hollow positioning cylinder (501). An elastic element (14) connected to the limiting plate (603) is disposed inside the hollow positioning cylinder (501). A force-retracting rod (604) that slides through the hollow positioning cylinder (501) is fixed on the surface of the limiting plate (603). An oblique channel (605) is opened on the peripheral side of the conical pneumatic propulsion part (601). A radial opening (606) communicating with the inner cavity of the conical pneumatic propulsion part (601) is disposed inside the oblique channel (605). The inner support clamping assembly (7) includes an inner support clamping member (701) that fits into the mounting cavity (511). One side of the inner support clamping member (701) is fixed with a radial displacement rod one (702) and a radial displacement rod two (703). The end of the radial displacement rod one (702) abuts against the inside of the inclined channel (605). The radial displacement rod two (703) extends from the radial opening (606) into the inner cavity of the conical air thruster (601). The connecting plate at the end of the radial displacement rod two (703) is connected to the inner wall of the hollow positioning cylinder (501) by an elastic element (14).

10. A valve core turning control system according to claim 9, characterized in that, The air-expansion clamping mechanism (4) further includes a connecting component (15); wherein the connecting component (15) includes a concentric connecting plug one (1501) and a connecting plug two (1502), the connecting plug one (1501) and the connecting plug two (1502) are connected by a connecting pipe (1503), the connecting plug one (1501) and the connecting plug two (1502) are provided with air vents (1504) on their peripheral sides, the connecting piece (1505) fixed on the peripheral side of the connecting plug one (1501) slides in cooperation with the radial channel (512) on the support member one (507), and the connecting piece (1505) is connected to the fixing member on the turning power shaft (505) by an elastic element (14).

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