A machining apparatus for valve core production

Abstract

The application is suitable for the technical field of valve core processing, and provides a machining device for valve core production, which comprises a turning frame and a rotating frame rotatingly arranged on the turning frame; a radial clamping part is arranged in the support cylinder; a plurality of arc-shaped grooves with the same spherical center as the valve core blank are uniformly arranged on the surface of the rotating disc; a sliding part matched with the outer wall of the valve core blank is slidingly arranged in the arc-shaped groove; an extrusion part is slidingly arranged in the guide pipe; a guide part matched with the extrusion part is symmetrically fixed on the surface of the rotating disc and located on the two sides of the support cylinder; a lifting part meshing with each driven gear is slidingly arranged on the surface of the rotating disc; the device drives the radial clamping part to clamp the medium passage in the valve core blank by controlling the lifting part to descend; the guide part drives the extrusion part to press the outer wall of the valve core blank; the multiple synchronous clamping and limiting of the multiple valve core blanks are realized; the stability of the valve core blank in the turning process is improved; and the machining quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valve core processing, more specifically, it relates to a processing equipment for valve core production. BACKGROUND

[0002] Ball valves are widely used in modern chemical industry and fluid conveying systems as a kind of sealing and flow capacity good shut-off valve. The ball is the core component of the ball valve, and the ball and the valve seat form a sealing pair to shut off the fluid. Ball valves mainly have two structures: floating ball structure and fixed ball structure. The common transmission structure of floating ball is valve stem and ball, and the connection between the two adopts crescent groove design.

[0003] According to the search, a floating ball valve ball body crescent groove processing tool with the publication number CN208195664U includes a base plate and a positioning rod, the outer circumferential surface of the base plate and the outer end surface of the base plate are reference surfaces; the positioning rod is sleeved with the floating ball valve ball body, and the inner end surface of the floating ball valve ball body is attached to the outer end surface of the base plate, the other end of the positioning rod extends out of the outer end surface of the floating ball valve ball body, a pressing plate is sleeved on the positioning rod at the outer end surface of the floating ball valve ball body, and a locking nut is screwed on the positioning rod at the outer end surface of the pressing plate. The above technical scheme changes the traditional floating ball valve ball body milling process to turning process; the four positioning tables on the base plate ensure the processing accuracy, avoid clamping alignment, and save alignment time.

[0004] However, the floating ball valve ball body crescent groove processing tool cannot realize synchronous clamping of multiple floating ball valve ball bodies, which reduces the efficiency of crescent groove turning; at the same time, the floating ball valve ball body is only pressed by the pressing plate, which has poor stability and affects the quality of crescent groove turning. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a processing equipment for valve core production, by controlling the descent of the lifting part, driving the radial clamping part to clamp the internal medium channel of the valve core blank, at the same time, driving each group of sliding parts to rotate synchronously counterclockwise to the top of the valve core blank, the gear ring plays a limiting role in the vertical direction of the valve core blank, preventing it from moving along the supporting cylinder, the guide part drives the extrusion part to press the outer wall of the valve core blank, realizing multiple synchronous clamping and limiting of multiple valve core blanks, improving the stability of the valve core blank in the turning process, and improving the processing quality.

[0006] To achieve the above purpose, the present application provides the following technical scheme:

[0007] A kind of processing equipment for valve core production, including turning frame and rotation frame being rotationally arranged on the turning frame;The rotation frame includes rotating disc;The rotating disc surface is uniformly fixed with several support cylinders compatible with valve core blank;Radial clamping portion is arranged in the support cylinder;The rotating disc surface is uniformly provided with several arc grooves with the same ball center as valve core blank;Sliding portion compatible with the outer wall of valve core blank is slidably arranged in the arc groove;The sliding portion includes gear ring that is slidably engaged with the arc groove;Ball shell compatible with the outer wall of valve core blank is fixed at the top of the gear ring;Guiding tube is fixedly arranged on the outer wall of the ball shell and symmetrically on both sides of the gear ring;Two guiding tubes are arranged in the shape of " eight ";Extrusion portion is slidably arranged in the guiding tube;Guiding portion compatible with the extrusion portion is fixed on both sides of the corresponding support cylinder on the surface of the rotating disc;A plurality of driven gears meshing with the corresponding gear ring are rotationally arranged on the rotating disc;Lifting portion meshing with each driven gear is slidably arranged on the surface of the rotating disc.

[0008] The application further provides that: the turning frame includes a base;The surface of the base is fixedly installed with an electric push rod;The telescopic end of the electric push rod is fixed with a transverse plate;The turning cutter is fixedly installed on both ends of the transverse plate through fastening bolts;The crescent groove is formed on the peripheral surface of the valve core blank by the turning cutter;The medium channel is formed in the valve core blank.

[0009] The application further provides that: a fixed sleeve coaxial with the electric push rod is arranged above the base;The peripheral surface of the fixed sleeve is fixed with a fixed ring;The fixed ring is fixed with a support leg at the bottom;The support leg is fixedly installed on the surface of the base through fastening bolts;The peripheral surface of the fixed sleeve is symmetrically provided with a guide groove slidably engaged with the transverse plate.

[0010] The application further provides that: the peripheral surface of the fixed sleeve is fixed with an annular rail;The surface of the rotating disc is provided with an axle hole rotationally engaged with the fixed sleeve;The inner wall of the axle hole is provided with an annular groove rotationally engaged with the annular rail;The surface of the fixed ring is fixedly installed with a servo motor;The output end of the servo motor is fixed with a drive gear;The bottom surface of the rotating disc is fixed with a fixed tube;The peripheral surface of the fixed tube is fixed with a gear ring meshing with the drive gear;The surface of the fixed ring is fixedly installed with a controller;The output end of the controller is electrically connected with the electric push rod and the servo motor respectively.

[0011] The application is further provided with: the radial clamping part includes an extrusion column arranged inside the supporting cylinder in sliding mode; a stopper is fixed on the top of the extrusion column; a supporting spring is fixedly connected between the stopper and the top of the supporting cylinder and is sleeved on the extrusion column; a tapered column is fixed on the bottom end of the extrusion column; a plurality of sliding grooves are uniformly arranged on the lateral surface of the supporting cylinder; a baffle is fixed between the inner walls of the sliding grooves; a pressing plate is arranged in sliding mode inside the sliding grooves and is matched with the inner walls of the medium channel; a sliding rod is fixed on the side surface of the pressing plate and is arranged in sliding mode through the baffle; a return spring is fixed between the pressing plate and the baffle and is sleeved on the sliding rod; a guide ball is fixed on the end of the sliding rod.

[0012] The application is further provided with: a plurality of U-shaped plates are uniformly fixed on the surface of the rotating disc; a rotating shaft is arranged in rotating mode between the inner walls of the U-shaped plates; the driven gear is fixed on the rotating shaft in coaxial mode; a plurality of lifting grooves are uniformly arranged on the surface of the rotating disc; the lifting part includes a lead screw; an annular plate is arranged in rotating mode on the lead screw; a plurality of extension plates are uniformly fixed on the lateral surface of the annular plate; a toothed plate is fixed on the end of the extension plate and is in sliding cooperation with the corresponding lifting groove; the toothed plate is in meshing cooperation with the corresponding driven gear.

[0013] The application is further provided with: a ring-shaped handle is fixed on the top end of the lead screw; a rotating ring is arranged in rotating mode on the lateral surface of the lead screw; a first ear plate is fixed on the lateral surface of the rotating ring; a threaded tube is arranged in rotating mode on the top of the fixing sleeve and is screwed with the lead screw; a second ear plate is fixed on the top of the fixing sleeve; a third ear plate is fixed on the lateral surface of the threaded tube; a screw hole is arranged on the surface of the first ear plate and the second ear plate; a screw rod is arranged in sliding mode through the surface of the third ear plate and is screwed with the screw hole.

[0014] The application is further provided with: a limiting groove is arranged on the inner wall of the guide pipe, and a guide hole is arranged on the end of the guide pipe; the extrusion part includes a guide rod in sliding cooperation with the guide hole; a guide rail is fixed on the lateral surface of the guide rod and is in sliding cooperation with the limiting groove; an extrusion block is fixed on one end of the guide rod and is matched with the outer wall of the valve core blank; a connecting head is fixed on the other end of the guide rod; a connecting spring is fixedly connected between the connecting head and the end of the guide pipe and is sleeved on the guide rod.

[0015] The application is further provided with: a hemispherical head is fixed on the side surface of the connecting head; the guide part includes a curved surface guide outer plate arranged in the same center as the valve core blank; a curved surface guide inner plate is fixed on the inner wall of the curved surface guide outer plate and is arranged in the same center as the valve core blank.

[0016] The application has the following advantages:

[0017] 1. The application controls the descent of the lifting part, drives the radial clamping part to clamp the internal medium channel of the valve core blank, at the same time, drives each group of sliding parts to rotate synchronously counterclockwise to the top of the valve core blank, the gear ring limits the vertical direction of the valve core blank to prevent it from moving along the supporting cylinder, and the guide part drives the extrusion part to press the outer wall of the valve core blank, realizing multiple synchronous clamping and limiting of multiple valve core blanks, improving the stability of the valve core blank in the turning process, and improving the processing quality.

[0018] 2. After the synchronous stable multiple clamping and limiting of each group of valve core blanks are completed, the rotating frame is controlled to rotate synchronously with the clamped and fixed valve core blank, at the same time, the turning tool is controlled to reciprocate vertically according to the production requirement, realizing synchronous turning of the crescent groove of multiple valve core blanks, and improving the processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of a machining equipment for valve core production of the application.

[0020] Figure 2 It is a structural schematic view of the front view angle of the Figure 1 of the application.

[0021] Figure 3 It is an enlarged view of the A area of the Figure 2 of the application.

[0022] Figure 4 It is a structural schematic view of the top view angle of the Figure 1 of the application.

[0023] Figure 5 It is a structural schematic view of the turning frame of the application.

[0024] Figure 6 It is a structural schematic view of the rotating frame of the application.

[0025] Figure 7 It is an enlarged view of the B area of the Figure 6 of the application.

[0026] Figure 8 It is a structural schematic view of the valve core blank of the application.

[0027] Figure 9 It is a structural schematic view of the sliding part of the application.

[0028] Figure 10 It is a structural schematic view of the extrusion part of the application.

[0029] Figure 11 It is a structural schematic view of the lifting part of the application.

[0030] In the figure: 1, turning frame; 2, rotating frame; 3, rotating disc; 4, valve core blank; 5, support cylinder; 6, arc-shaped groove; 7, sliding part; 8, gear ring; 9, spherical shell; 10, guide pipe; 11, extrusion part; 12, guide part; 13, driven gear; 14, lifting part; 15, base; 16, electric push rod; 17, transverse plate; 18, turning tool; 19, crescent groove; 20, medium channel; 21, fixed sleeve; 22, fixed ring; 23, support leg; 24, guide groove; 25, annular track; 26, shaft hole; 27, annular groove; 28, servo motor; 29, fixed pipe; 30, gear ring; 31, extrusion column; 32, stop block; 33, support spring; 34, tapered column; 35, sliding groove; 36, baffle; 37, pressing plate; 38, sliding rod; 39, return spring; 40, guide ball; 41, U-shaped plate; 42, rotating shaft; 43, screw rod; 44, annular plate; 45, extension plate; 46, lifting groove; 47, toothed plate; 48, annular handle; 49, rotating ring; 50, first ear plate; 51, threaded pipe; 52, second ear plate; 53, third ear plate; 54, screw hole; 55, screw rod; 56, guide hole; 57, guide rod; 58, guide rail; 59, extrusion block; 60, connecting head; 61, connecting spring; 62, semispherical head; 63, curved surface guide outer plate; 64, curved surface guide inner plate; 65, driving gear; 66, limiting groove. DETAILED DESCRIPTION

[0031] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all the technical and scientific terms used in the present application have the same meaning as that generally understood by the ordinary skilled person in the technical field to which the present application belongs.

[0033] In the present application, unless otherwise specified, the orientation such as "upper", "lower" is generally directed to the direction shown in the drawings, or is directed to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left", "right" is generally directed to the left and right shown in the drawings; "inner", "outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0034] Embodiment one, please refer to Figures 1-11 The present application provides the following technical solutions:

[0035] A machining device for valve core production, specifically, comprising a turning frame 1 and a rotating frame 2 rotatably arranged on the turning frame 1; the rotating frame 2 comprises a rotating disc 3; the surface of the rotating disc 3 is uniformly fixed with a plurality of support cylinders 5 matched with valve core blanks 4; the inside of the support cylinder 5 is provided with a radial clamping part.

[0036] The rotating disc 3 is uniformly provided with a plurality of arc-shaped grooves 6 with the same spherical center as the valve core blank 4; the arc-shaped grooves 6 are internally slidably provided with sliding parts 7 matched with the outer wall of the valve core blank 4; the sliding parts 7 comprise a gear ring 8 in sliding cooperation with the arc-shaped grooves 6; the gear ring 8 is fixed at the top with a spherical shell 9 matched with the outer wall of the valve core blank 4; the outer wall of the spherical shell 9 is symmetrically fixed with guide pipes 10 on both sides of the gear ring 8.

[0037] The two guide pipes 10 are arranged in the shape of an "eight"; the guide pipes 10 are internally slidably provided with extrusion parts 11; the rotating disc 3 is symmetrically fixed with guide parts 12 matched with the extrusion parts 11 on both sides of the corresponding support cylinder 5.

[0038] The rotating disc 3 is uniformly rotatably provided with a plurality of driven gears 13 engaged with the corresponding gear rings 8; the rotating disc 3 is slidably provided with lifting parts 14 engaged with the driven gears 13.

[0039] Working principle of the embodiment:

[0040] By controlling the lifting parts 14 to descend, the radial clamping parts are driven to clamp the medium channel 20 inside the valve core blank 4, at the same time, the groups of sliding parts 7 are synchronously driven to rotate counterclockwise to be close to the top of the valve core blank 4, the gear rings 8 limit the valve core blank 4 in the vertical direction to prevent it from moving along the support cylinder 5, the guide parts 12 drive the extrusion parts 11 to press the outer wall of the valve core blank 4, thereby realizing multiple synchronous clamping and limiting of the groups of valve core blanks 4, improving the stability of the valve core blank 4 in the turning process, and improving the processing quality and production efficiency.

[0041] Embodiment two, please refer to Figures 1-11 , the second embodiment is improved on the basis of the first embodiment, specifically, the turning frame 1 comprises a base 15; the base 15 is fixedly provided with an electric push rod 16 on the surface; the electric push rod 16 is fixedly provided with a transverse plate 17 at the telescopic end; the transverse plate 17 is fixedly provided with a turning tool 18 at both ends through fastening bolts; the valve core blank 4 is turned to form a crescent groove 19 through the turning tool 18; the valve core blank 4 is internally provided with a medium channel 20.

[0042] The base 15 is provided with a fixed sleeve 21 coaxial with the electric push rod 16 above; the fixed sleeve 21 is fixedly provided with a fixed ring 22 on the peripheral surface; the fixed ring 22 is fixedly provided with a support leg 23 at the bottom; the support leg 23 is fixedly installed on the surface of the base 15 through fastening bolts; the peripheral surface of the fixed sleeve 21 is symmetrically provided with guide grooves 24 in sliding cooperation with the transverse plate 17.

[0043] The annular rail 25 is fixed on the side surface of the fixed sleeve 21; the shaft hole 26 is arranged on the surface of the rotating disc 3 and is matched with the fixed sleeve 21; the annular groove 27 is arranged on the inner wall of the shaft hole 26 and is matched with the annular rail 25; the servo motor 28 is fixedly arranged on the surface of the fixed ring 22; the driving gear 65 is fixed on the output end of the servo motor 28; the fixed tube 29 is fixed on the bottom surface of the rotating disc 3; the tooth ring 30 is fixed on the side surface of the fixed tube 29 and is matched with the driving gear 65; the controller is fixedly arranged on the surface of the fixed ring 22; the output end of the controller is electrically connected with the electric push rod 16 and the servo motor 28.

[0044] The radial clamping part comprises the extrusion column 31 which is arranged inside the supporting cylinder 5 and is slidably arranged; the stop block 32 is fixed on the top of the extrusion column 31; the supporting spring 33 is fixedly connected between the stop block 32 and the top of the supporting cylinder 5 and is sleeved on the extrusion column 31; the tapered column 34 is fixed on the bottom end of the extrusion column 31; the sliding grooves 35 are uniformly arranged on the side surface of the supporting cylinder 5; the baffle 36 is fixed between the inner walls of the sliding grooves 35; the pressing plate 37 is slidably arranged inside the sliding groove 35 and is matched with the inner wall of the medium channel 20; the sliding rod 38 is slidably arranged through the baffle 36 and is fixed on the side surface of the pressing plate 37; the reset spring 39 is fixed between the pressing plate 37 and the baffle 36 and is sleeved on the sliding rod 38; the guide ball 40 is fixed on the end of the sliding rod 38.

[0045] The U-shaped plates 41 are uniformly fixed on the surface of the rotating disc 3; the rotating shaft 42 is rotatably arranged between the inner walls of the U-shaped plates 41; the driven gear 13 is coaxially fixed on the rotating shaft 42; the lifting grooves 46 are uniformly arranged on the surface of the rotating disc 3; the lifting part 14 comprises the lead screw 43; the annular plate 44 is rotatably arranged on the lead screw 43; the extension plates 45 are uniformly fixed on the side surface of the annular plate 44; the toothed plates 47 are fixed on the ends of the extension plates 45 and are slidably matched with the corresponding lifting grooves 46; the toothed plates 47 are matched with the corresponding driven gears 13.

[0046] The annular handle 48 is fixed on the top end of the lead screw 43; the rotating ring 49 is rotatably arranged on the side surface of the lead screw 43; the first ear plate 50 is fixed on the side surface of the rotating ring 49; the threaded tube 51 is screw-connected with the lead screw 43 and is rotatably arranged on the top of the fixed sleeve 21; the second ear plate 52 is fixed on the top of the fixed sleeve 21; the third ear plate 53 is fixed on the side surface of the threaded tube 51; the screw holes 54 are arranged on the surfaces of the first ear plate 50 and the second ear plate 52; the screw rod 55 is slidably arranged through the screw hole 54 and is screw-connected with the screw hole 54.

[0047] The inner wall of the guide pipe 10 is provided with a limiting groove 66, and the end thereof is provided with a guide hole 56; the extrusion part 11 comprises a guide rod 57 which is in sliding fit with the guide hole 56; the circumferential surface of the guide rod 57 is fixedly provided with a guide rail 58 which is in sliding fit with the limiting groove 66; one end of the guide rod 57 is fixedly provided with an extrusion block 59 which is matched with the outer wall of the valve core blank 4; the other end of the guide rod 57 is fixedly provided with a connecting head 60; the connecting head 60 is fixedly connected with the end of the guide pipe 10 and is provided with a connecting spring 61 which is sleeved on the guide rod 57.

[0048] The extrusion block 59 and the extrusion surface of the pressing plate 37 are both provided with a rubber layer for clamping and protecting the valve core blank 4.

[0049] The side surface of the connecting head 60 is fixedly provided with a hemispherical head 62; the guide part 12 comprises a curved surface guide outer plate 63 which is arranged at the same center as the valve core blank 4; the inner wall of the curved surface guide outer plate 63 is fixedly provided with a curved surface guide inner plate 64 which is arranged at the same center as the valve core blank 4.

[0050] Working principle of the second embodiment:

[0051] The medium channels 20 on the valve core blanks 4 are sequentially inserted into the corresponding support cylinders 5, the screw rod 55 is rotated and lowered to be inserted into the screw hole 54 on the surface of the second ear plate 52, the fixing of the threaded pipe 51 and the fixed sleeve 21 is completed, at this time, the threaded pipe 51 and the fixed sleeve 21 cannot rotate; the annular handle 48 is rotated to drive the screw rod 43 to rotate and descend along the threaded pipe 51, thereby driving the extension plates 45 and the toothed plates 47 to synchronously slide and descend.

[0052] In the process of descending of the extension plates 45, the corresponding stop blocks 32 are gradually extruded, thereby driving the extrusion columns 31 to slide and descend along the corresponding support cylinders 5, so that the guide balls 40 slide along the inclined surface of the tapered column 34 to the circumferential surface of the extrusion column 31, the guide balls 40 are extruded to drive the sliding rods 38 and the pressing plates 37 to slide towards the corresponding extrusion columns 31, thereby making the pressing plates 37 synchronously press the medium channels 20, the clamping of the inside of the valve core blank 4 is completed, the clamping effect of the valve core blank 4 is improved, and the stability of the turning process of the valve core blank 4 is improved.

[0053] In the process of descending of the toothed plates 47, the corresponding driven gears 13 are driven to rotate clockwise, the driven gears 13 drive the corresponding gear rings 8 to rotate counterclockwise, thereby driving the spherical shell 9 to slide along the outer wall of the valve core blank 4, until the spherical shell 9 slides to the position close to the top of the valve core blank 4, the gear ring 8 and the spherical shell 9 limit the valve core blank 4 in the vertical direction, preventing the valve core blank 4 from sliding along the corresponding support cylinder 5, further improving the clamping effect of the valve core blank 4, and further improving the stability of the turning process of the valve core blank 4.

[0054] During the anticlockwise rotation of the gear ring 8, the half-spherical head 62 is slid from the curved guiding outer plate 63 to the curved guiding inner plate 64, and in this process, the half-spherical head 62 is extruded by the curved guiding inner plate 64, so that the guide rod 57 and the extrusion block 59 move towards the outer wall of the valve core blank 4, until the extrusion block 59 is pressed against the outer wall of the valve core blank 4, further improving the clamping effect on the valve core blank 4 and further improving the stability of the valve core blank 4 during turning.

[0055] In summary, through the linkage cooperation between the components, multiple synchronous clamping and limiting of the multiple groups of valve core blanks 4 are realized, the stability of the valve core blank 4 during turning is improved, and the processing quality and production efficiency are improved.

[0056] After completing the multiple synchronous clamping and limiting of the multiple groups of valve core blanks 4, the screw rod 55 is removed, and the first ear plate 50 and the third ear plate 53 are fixed together through the screw rod 55. At this time, the lifting part 14, the rotating disc 3 and the threaded tube 51 can rotate synchronously around the fixed sleeve 21, the driving gear 65 is driven to rotate by controlling the starting servo motor 28, so that the gear ring 30 is driven to rotate, and then the rotating disc 3 and the clamped and fixed valve core blank 4 are synchronously rotated. According to the production requirements, the turning tool 18 is controlled to reciprocatingly feed in the vertical direction, synchronous turning of the crescent grooves 19 of the multiple groups of valve core blanks 4 is realized, and the processing efficiency is improved.

[0057] Obviously, the above-described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0058] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or combination thereof.

[0059] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0060] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0061] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A machining apparatus for producing valve cores, comprising a turning frame (1) and a rotating frame (2) rotatably mounted on the turning frame (1); characterized in that: The rotating frame (2) includes a turntable (3); a plurality of support cylinders (5) adapted to the valve core blank (4) are uniformly fixed on the surface of the turntable (3); a radial clamping part is provided inside the support cylinder (5); The turntable (3) has a plurality of arc-shaped grooves (6) with the same center as the valve core blank (4) evenly distributed on its surface; a sliding part (7) adapted to the outer wall of the valve core blank (4) is slidably disposed inside the arc-shaped groove (6); the sliding part (7) includes a toothed ring (8) that slides with the arc-shaped groove (6); a spherical shell (9) adapted to the outer wall of the valve core blank (4) is fixed on the top of the toothed ring (8); guide tubes (10) are symmetrically fixed through the outer wall of the spherical shell (9) on both sides of the toothed ring (8). The two guide tubes (10) are arranged in a figure-eight shape; an extrusion part (11) is slidably arranged inside the guide tube (10); the surface of the turntable (3) is symmetrically fixed with guide parts (12) that are adapted to the extrusion part (11) on both sides of the corresponding support cylinder (5). A plurality of driven gears (13) that mesh with the corresponding gear rings (8) are uniformly rotated above the turntable (3); a lifting part (14) that meshes with each driven gear (13) is slidably provided on the surface of the turntable (3). The turning frame (1) includes a base (15); an electric push rod (16) is fixedly installed on the surface of the base (15); a transverse plate (17) is fixed to the telescopic end of the electric push rod (16); a turning tool (18) is fixedly installed at both ends of the transverse plate (17) by fastening bolts; a crescent groove (19) is formed on the peripheral side of the valve core blank (4) by turning tool (18); a medium channel (20) is opened inside the valve core blank (4); A fixed sleeve (21) coaxial with the electric push rod (16) is provided above the base (15); a fixed ring (22) is fixed on the periphery of the fixed sleeve (21); a support leg (23) is fixed at the bottom of the fixed ring (22); the support leg (23) is fixedly installed on the surface of the base (15) by fastening bolts; guide grooves (24) that slide with the transverse plate (17) are symmetrically opened on the periphery of the fixed sleeve (21). The fixed sleeve (21) is fixed with an annular rail (25) on its periphery; the turntable (3) has a shaft hole (26) that rotatably engages with the fixed sleeve (21); the inner wall of the shaft hole (26) has an annular groove (27) that rotatably engages with the annular rail (25); a servo motor (28) is fixedly mounted on the surface of the fixed ring (22); a drive gear (65) is fixedly mounted on the output end of the servo motor (28); a fixed tube (29) is fixedly mounted on the bottom surface of the turntable (3); a toothed ring (30) that meshes with the drive gear (65) is fixedly mounted on the periphery of the fixed tube (29); a controller is fixedly mounted on the surface of the fixed ring (22); the output end of the controller is electrically connected to the electric push rod (16) and the servo motor (28) respectively.

2. The processing equipment for valve core production according to claim 1, characterized in that: The radial clamping part includes an extrusion column (31) that is slidably disposed inside the support cylinder (5); a stop block (32) is fixed to the top of the extrusion column (31); a support spring (33) sleeved on the extrusion column (31) is fixedly connected between the stop block (32) and the top of the support cylinder (5); a conical column (34) is fixed to the bottom end of the extrusion column (31); several grooves (35) are evenly opened on the periphery of the support cylinder (5); a baffle (36) is fixed between the inner walls of the grooves (35); a pressure plate (37) adapted to the inner wall of the medium channel (20) is slidably disposed inside the grooves (35); a slide rod (38) that is slidably disposed through the baffle (36) is fixed to the side of the pressure plate (37); a return spring (39) sleeved on the slide rod (38) is fixed between the pressure plate (37) and the baffle (36); a guide ball (40) is fixed to the end of the slide rod (38).

3. The processing equipment for valve core production according to claim 2, characterized in that: The turntable (3) has several U-shaped plates (41) evenly fixed on its surface; a rotating shaft (42) is rotatably arranged between the inner walls of the U-shaped plates (41); the driven gear (13) is coaxially fixed on the rotating shaft (42); several lifting grooves (46) are evenly opened on the surface of the turntable (3); the lifting part (14) includes a lead screw (43); an annular plate (44) is rotatably arranged on the lead screw (43); several extension plates (45) are evenly fixed on the periphery of the annular plate (44); a toothed plate (47) is fixed at the end of the extension plate (45) and slides with the corresponding lifting groove (46); the toothed plate (47) meshes with the corresponding driven gear (13).

4. The processing equipment for valve core production according to claim 3, characterized in that: The top end of the lead screw (43) is fixed with an annular handle (48); a rotating ring (49) is rotatably provided on the circumferential side of the lead screw (43); a first ear plate (50) is fixed on the circumferential side of the rotating ring (49); a threaded tube (51) that is screwed to the lead screw (43) is rotatably provided on the top of the fixed sleeve (21); a second ear plate (52) is fixed on the top of the fixed sleeve (21); a third ear plate (53) is fixed on the circumferential side of the threaded tube (51); screw holes (54) are opened on the surfaces of the first ear plate (50) and the second ear plate (52); a screw rod (55) that is screwed to the screw hole (54) is slidably provided through the surface of the third ear plate (53).

5. The processing equipment for valve core production according to claim 4, characterized in that: The inner wall of the guide tube (10) is provided with a limiting groove (66), and its end is provided with a guide hole (56); the extrusion part (11) includes a guide rod (57) that slides with the guide hole (56); a guide rail (58) that slides with the limiting groove (66) is fixed on the periphery of the guide rod (57); an extrusion block (59) that is adapted to the outer wall of the valve core blank (4) is fixed at one end of the guide rod (57); a connector (60) is fixed at the other end of the guide rod (57); a connecting spring (61) sleeved on the guide rod (57) is fixedly connected between the connector (60) and the end of the guide tube (10).

6. The processing equipment for valve core production according to claim 5, characterized in that: The connector (60) has a hemispherical head (62) fixed on its side; the guide part (12) includes a curved guide outer plate (63) with the same center as the valve core blank (4); the inner wall of the curved guide outer plate (63) has a curved guide inner plate (64) with the same center as the valve core blank (4).

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