A ball face precision machining process for a plug valve valve seat and a machining device thereof

Abstract

The application discloses a kind of cock valve seat inner spherical surface precision machining process and its processing device, belong to equipment manufacturing technical field, the first motor drives the first gear and gear ring transmission in the application, so that feeding disc can drive material clamping driving assembly and clamp assembly rotation, so that valve seat can keep rotating and feeding, meet the demand of automatic feeding, and material clamping driving assembly is equipped with multiple, so that in valve seat machining process, clamping valve seat operation is carried out again in another position, avoid disassembly and clamping again after processing, simultaneously, after processing is completed, valve seat position can be alternately switched again, to meet continuous high-efficiency operation, simultaneously, it is convenient to feed and discharge operation, secondly, driving assembly drives material clamping driving assembly and fourth gear transmission, so that fourth gear realizes material hopper vibration operation by convex ball cooperation vibration assembly, so that waste chip generated during processing can be smoothly discharged into discharge assembly through material hopper, and directly discharged, to facilitate waste chip cleaning.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of equipment manufacturing, and in particular to a valve seat inner spherical surface precision machining process and machining device thereof. BACKGROUND

[0002] The precision machining of the valve seat inner spherical surface of the plug valve is a complex and delicate process challenge. The high-precision machining link is the cornerstone of the outstanding precision of the valve seat inner spherical surface. This key link generally relies on high-precision lathes or special machines designed for this purpose. In the entire machining process, strict control measures need to be implemented for the accurate regulation of cutting parameters, the reasonable selection of tools, and the proper use of cooling liquid, so as to ensure that the machining precision and surface quality ultimately achieved can meet the stringent standard requirements.

[0003] Currently, the existing technical machine tool applied to the machining of the valve seat inner spherical surface of the plug valve generally uses a three-jaw chuck as a means of clamping and fixing the plug valve seat. However, given the hollow structure design of the plug valve seat, this clamping method faces significant challenges: if the clamping force of the three-jaw chuck is set too light, it is difficult to ensure the stability of the valve seat; on the contrary, if the clamping force is too large, it is easy to cause the valve seat surface to appear concave deformation, thereby damaging the product quality. In addition, the machine tool needs to be paused during the feeding and discharging link, which undoubtedly reduces the overall machining efficiency. More troublesome is that a large amount of debris is generated during the finishing stage, and the accumulation of these debris not only makes cleaning difficult, but often requires the machine tool to be stopped for thorough removal, which undoubtedly further slows down the machining progress and poses a considerable obstacle to production speed.

[0004] In view of the above problems, the present application file proposes a valve seat inner spherical surface precision machining process and machining device thereof. SUMMARY

[0005] The purpose of the present application is to solve the shortcomings in the prior art that the three-jaw chuck is generally used as a means of clamping and fixing the plug valve seat, and if the clamping force of the three-jaw chuck is set too light, it is difficult to ensure the stability of the valve seat; on the contrary, if the clamping force is too large, it is easy to cause the valve seat surface to appear concave deformation, thereby damaging the product quality. In addition, the machine tool needs to be paused during the feeding and discharging link, which undoubtedly reduces the overall machining efficiency. More troublesome is that a large amount of debris is generated during the finishing stage, and the accumulation of these debris not only makes cleaning difficult, but often requires the machine tool to be stopped for thorough removal, which undoubtedly further slows down the machining progress and poses a considerable obstacle to production speed, and proposes a valve seat inner spherical surface precision machining process and machining device thereof.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] A ball surface precision machining process for the valve seat of a plug valve, the machining process comprising the following steps:

[0008] S1, by clamping the fixture assembly to achieve the work of clamping the valve seat inside and outside;

[0009] S2, by driving assembly and clamping material driving assembly to drive the valve seat rotation, and then cooperating with the cutter table structure to grind the valve seat;

[0010] S3, by clamping material driving assembly and vibration assembly to shake the material hopper to discharge the waste.

[0011] A kind of machining device for the ball surface precision machining process for the valve seat of a plug valve, the machining device includes numerical control lathe, the numerical control lathe is provided with machining assembly and feeding mechanism;

[0012] The feeding mechanism includes switching type feeding assembly, the switching type feeding assembly is provided with driving assembly and a plurality of adjustable material guide components on one side, a plurality of adjustable material guide components are connected by two annular strips, two annular strips are transversely provided with discharge assembly;

[0013] The switching type feeding assembly is provided with a plurality of clamping material driving assemblies, when the clamping material driving assemblies make circumferential motion, the clamping material driving assemblies are transmissionally connected with the driving assembly, one side of the clamping material driving assembly is provided with three fixture assemblies, the three fixture assemblies are clamped and fixed to the valve seat, the clamping material driving assembly is transmissionally connected with the vibration assembly, two ends of the vibration assembly are connected with two adjustable material guide components.

[0014] Preferably, the machining assembly includes cutter table structure, the cutter table structure is arranged in numerical control lathe, cutter table clamp is installed on one side of the cutter table structure, the electric spindle is fixedly installed on one side of the cutter table clamp, the grinding head is installed on one end of the electric spindle.

[0015] Preferably, the switching type feeding assembly includes feeding disc, the feeding disc is fixedly connected with one of the annular strips, the annular ring is fixedly connected on one side of the feeding disc, the ring gear is fixedly connected in the annular ring, the ring gear is engaged with the first gear, the first gear is fixedly connected with the output shaft of the first motor.

[0016] Preferably, the discharge assembly includes a material conveying pipe, the feeding disc is rotatably installed on the material conveying pipe through a bearing, the inner wall bottom of the material conveying pipe is obliquely arranged, the material conveying pipe is communicated with a discharge pipe at one end, the discharge pipe is connected to the numerical control lathe and extends to the rear of the numerical control lathe;

[0017] The feeding pipe is provided with a feeding port above, the other end of the feeding pipe is fixedly connected with a fixed plate, the fixed plate is fixedly connected in the numerical control lathe, and the first motor is fixedly connected above the fixed plate.

[0018] Preferably, the adjustable material guiding assembly comprises a connecting plate fixedly connected on the two annular strips, two sliding grooves are formed on the two sides of the connecting plate, sliding blocks are slidably connected in the sliding grooves, and the two sliding blocks are fixedly connected with material hoppers on one side.

[0019] Preferably, the vibration assembly comprises a connecting frame and a rotating shaft, a plurality of circumferentially arranged rolling balls are fixedly connected on one side of the connecting frame, the two ends of the connecting frame are fixedly connected with two oppositely arranged material hoppers, the rotating shaft penetrates out of the connecting frame and is rotatably installed on the feeding disc through a bearing, one end of the rotating shaft is fixedly connected with a fourth gear, a plurality of convex balls with the same arrangement mode as the rolling balls are fixedly connected on one side of the fourth gear, and two second springs are fixedly connected between the connecting frame and the feeding disc.

[0020] Preferably, the material clamping driving assembly comprises a supporting shaft rotatably installed on the feeding disc through a bearing, one end of the supporting shaft is fixedly connected with a three-jaw chuck, the three-jaw chuck is fixedly connected with a third gear outside, and the third gear is engaged with the fourth gear.

[0021] Preferably, the driving assembly comprises an electric push rod fixedly installed on the top wall of the numerical control lathe, the bottom end of the electric push rod is fixedly connected with a second motor, the output shaft of the second motor is fixedly connected with a second gear, and the second gear is engaged with the third gear.

[0022] Preferably, the clamp assembly comprises a support fixedly connected on the clamping jaw of the three-jaw chuck on one side, a connecting pipe is installed through the support, the two ends of the support are fixedly connected with circular shells, the two circular shells are different in size, the two circular shells are communicated through the connecting pipe, a piston rod is arranged in the circular shell, the piston rod extends out of the circular shell and is fixedly connected with a clamping plate, one of the piston rods is fixedly connected with a first spring, and one end of the first spring is fixedly connected with the inner wall of the circular shell.

[0023] Compared with the prior art, the present application provides a plug valve seat inner spherical surface precision machining process and a machining device thereof, which has the following beneficial effects:

[0024] 1. The ball valve seat inner spherical surface precision machining process and its machining device, through the first motor driving the first gear and the gear ring transmission, the feeding disc can drive the material clamping driving assembly and the clamp assembly to rotate, so that the valve seat can keep rotating to feed, meeting the demand of automatic feeding, and the material clamping driving assembly is equipped with multiple, so that the valve seat can be clamped again in another position during the machining process, avoiding the need to remove and clamp again after machining, and after machining is completed, the valve seat position can be alternately switched again, so that continuous and efficient machining operation is met, and the feeding and discharging operation is facilitated, secondly, through the driving assembly driving the material clamping driving assembly and the fourth gear transmission, the fourth gear drives the extrusion movement between the convex ball and the ball bearing, and cooperates with the second spring to realize the vibration operation of the material hopper, so that the machining waste can be smoothly discharged from the material hopper to the discharging assembly and directly discharged, thereby facilitating the cleaning of the waste.

[0025] 2. The ball valve seat inner spherical surface precision machining process and its machining device, through the three-jaw chuck driving the clamping jaw movement, the clamping jaw drives the support movement, the clamping plate can be attached to the valve seat, the clamping plate can be tightened to extrude the piston rod movement, the piston rod can drive another piston rod and the clamping plate movement through the liquid, due to the size difference between the two circular shells, the two piston rods have different movement strokes, so that the two clamping plates can be smoothly clamped on the inner and outer surfaces of the valve seat, the inner and outer surfaces of the valve seat are stressed, the uniformity of the stress can be maintained, the valve seat deformation can be prevented, and the machining precision and product quality can be improved.

[0026] 3. The ball valve seat inner spherical surface precision machining process and its machining device, through the three-jaw chuck clamping jaw, the clamp assembly can be tightened on the inner and outer surfaces of the valve seat, and the clamping of the valve seat can be maintained, this way can provide greater clamping force, enhance the stability of the valve seat, keep the stable position and posture during machining, secondly, through the multiple adjustable material guiding assemblies, the clamping driving assembly can be separately separated, so that each valve seat can keep a separate machining area, in a separated way, the waste splashing can be avoided, and at the same time, after being separated, the valve seat can be prevented from loosening and flying out to hurt the workers, so that the safety of feeding and discharging can be greatly improved in cooperation with the double-sided clamping. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a perspective view of a ball valve seat inner spherical surface precision machining device proposed by the present application;

[0028] Figure 2 It is a structure view of the discharge pipe of the ball valve seat inner spherical surface precision machining device penetrating the numerical control lathe proposed by the present application;

[0029] Figure 3 It is a perspective view of the machining assembly and feeding mechanism of the ball valve seat inner spherical surface precision machining device proposed by the present application;

[0030] Figure 4 This is a structural view of the connection between the discharge assembly and the switching feeding assembly of a precision machining device for the inner spherical surface of a plug valve seat proposed in this invention.

[0031] Figure 5 This is a perspective view of the switching feeding assembly of a precision machining device for the inner spherical surface of a plug valve seat proposed in this invention.

[0032] Figure 6 This is a perspective view of the discharge assembly of a precision machining device for the inner spherical surface of a plug valve seat, as proposed in this invention.

[0033] Figure 7 This is a perspective view of the adjustable material guide assembly of a precision machining device for the inner spherical surface of a plug valve seat according to the present invention.

[0034] Figure 8 This is a structural view of the adjustable material guide assembly and the circular ring bar connection of a precision machining device for the inner spherical surface of a plug valve seat according to the present invention.

[0035] Figure 9 This is a structural view of the connection between the vibration component and the feed plate of a precision machining device for the inner spherical surface of a plug valve seat according to the present invention.

[0036] Figure 10 In this invention Figure 9 Enlarged view of point A;

[0037] Figure 11 This is a structural view of the connection between the clamping drive assembly and the fixture assembly in a precision machining device for the inner spherical surface of a plug valve seat according to the present invention.

[0038] Figure 12 This is a perspective view of the fixture assembly of a precision machining device for the inner spherical surface of a plug valve seat according to the present invention.

[0039] Figure 13 This is a perspective view of the fixture assembly of a precision machining device for the inner spherical surface of a plug valve seat according to the present invention.

[0040] In the figure: 100, numerical control lathe; 101, machining assembly; 1011, grinding head; 1012, electric spindle; 1013, tool rest clamp; 1014, tool rest structure; 200, feeding mechanism; 201, switching type feeding assembly; 2011, feeding disc; 2012, gear ring; 2013, first motor; 2014, annular ring; 2015, first gear; 202, discharging assembly; 2021, discharging pipe; 2022, feeding pipe; 2023, feeding port; 2024, fixed plate; 203, driving assembly; 2031, second gear; 2032, second motor; 2033, electric push rod; 204, valve seat; 205, clamp assembly; 2051, support; 2052, circular shell; 2053, piston rod; 2054, clamping plate; 2055, first spring; 2056, connecting pipe; 206, adjustable material guiding assembly; 2061, material hopper; 2062, connecting plate; 2063, chute; 2064, sliding block; 207, vibration assembly; 2071, connecting frame; 2072, ball bearing; 2073, second spring; 2074, convex ball; 2075, rotating shaft; 2076, fourth gear; 208, circular ring strip; 209, material clamping driving assembly; 2091, three-jaw chuck; 2092, third gear; 2093, support shaft. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0042] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0043] Embodiment 1: Reference Figures 1-11The application discloses a machining device for machining the spherical surface precision of a plug valve valve seat, and the machining device comprises a numerical control lathe 100. The device is characterized in that a gas pump source is added to the numerical control lathe 100, which can be used for reverse osmosis at the end of an electric spindle 1012, so as to prevent water from entering the electric spindle 1012. The numerical control lathe 100 is provided with a machining assembly 101 and a feeding mechanism 200. The machining assembly 101 comprises a tool rest structure 1014 arranged in the numerical control lathe 100. The tool rest structure 1014 is provided with a tool rest clamp 1013 on one side. The tool rest clamp 1013 is fixedly provided with the electric spindle 1012 on one side. The electric spindle 1012 is provided with a frequency converter, so that the frequency conversion speed regulation of the electric spindle 1012 can be realized. In addition, a water cooling circulation system is further added to the electric spindle 1012, which is used for cooling. The electric spindle 1012 is provided with a grinding head 1011 at one end. The grinding head 1011 is made of white corundum material with a granularity of F46. The grinding wheel has sharp cutting edges for grinding.

[0044] The feeding mechanism 200 comprises a switching feeding assembly 201, the switching feeding assembly 201 comprises a feeding disc 2011, the feeding disc 2011 is fixedly connected with one of the annular strips 208, one side of the feeding disc 2011 is fixedly connected with an annular ring 2014, the annular ring 2014 is fixedly connected with a gear ring 2012, the gear ring 2012 is engaged with a first gear 2015, the first gear 2015 is fixedly connected with an output shaft of a first motor 2013, the first motor 2013 drives the first gear 2015 and the gear ring 2012 to drive, so that the annular ring 2014 can drive the clamping driving assembly 209 to rotate through the feeding disc 2011, so that the position of the valve seat 204 can be switched, and the valve seat 204 can continuously perform the working operation, one side of the switching feeding assembly 201 is provided with a driving assembly 203 and a plurality of adjustable material guiding assemblies 206, the adjustable material guiding assembly 206 comprises a connecting plate 2062, the connecting plate 2062 is fixedly connected on the two annular strips 208, two sides of the connecting plate 2062 are both provided with two sliding grooves 2063, sliding grooves 2063 are slidably connected with sliding blocks 2064, the sliding blocks 2064 can slide in the sliding grooves 2063, so that the material hopper 2061 can smoothly perform the vibration operation, one side of the two sliding blocks 2064 is fixedly connected with the material hopper 2061, the material hopper 2061 can block the waste from splashing outward, and the material hopper 2061 is obliquely arranged, so that the waste can be smoothly discharged downward, the plurality of adjustable material guiding assemblies 206 are connected through the two annular strips 208, the two annular strips 208 are transversely provided with a discharging assembly 202, the discharging assembly 202 comprises a conveying pipe 2022, the feeding disc 2011 is rotatably installed on the conveying pipe 2022 through a bearing, the feeding disc 2011 can smoothly rotate through the bearing, the inner wall bottom of the conveying pipe 2022 is obliquely arranged, one end of the conveying pipe 2022 is communicated with a discharging pipe 2021, the discharging pipe 2021 extends to the rear of the numerical control lathe 100 from the numerical control lathe 100, the upper side of the conveying pipe 2022 is provided with an inlet 2023, because the inlet 2023 is arranged, the waste can enter the conveying pipe 2022 through the inlet 2023, secondly, because the bottom wall of the conveying pipe 2022 is obliquely arranged, the waste can smoothly enter the discharging pipe 2021 along the conveying pipe 2022 and be discharged through the discharging pipe 2021, so that the waste can be conveniently collected, the other end of the conveying pipe 2022 is fixedly connected with a fixed plate 2024, the fixed plate 2024 is fixedly connected in the numerical control lathe 100, the upper side of the fixed plate 2024 is fixedly connected with the first motor 2013;

[0045] The switching type feeding assembly 201 is provided with a plurality of material clamping driving assemblies 209. The material clamping driving assembly 209 comprises a supporting shaft 2093 which is rotatably installed on the feeding disc 2011 through a bearing. The supporting shaft 2093 can smoothly rotate through the bearing, so that the three-jaw chuck 2091 can smoothly rotate. One end of the supporting shaft 2093 is fixedly connected with the three-jaw chuck 2091. The three-jaw chuck 2091 is fixedly connected with the third gear 2092 outside. The third gear 2092 is engaged with the fourth gear 2076. The power transmission can be realized through the third gear 2092 and the fourth gear 2076, so that the fourth gear 2076 can drive the extrusion movement between the convex ball 2074 and the ball 2072. The material hopper 2061 can be driven to move through the connecting frame 2071, so that the material hopper 2061 can guide the waste downward. When the material clamping driving assembly 209 rotates circumferentially, the material clamping driving assembly 209 is connected with the driving assembly 203. The driving assembly 203 comprises an electric push rod 2033 which is fixedly installed on the top wall of the numerical control lathe 100. The bottom end of the electric push rod 2033 is fixedly connected with the second motor 2032. The position of the second motor 2032 can be lifted through the electric push rod 2033, so that the second gear 2031 does not block the rotation of the material hopper 2061. At the same time, the second motor 2032 is pushed downward by the electric push rod 2033, so that the second gear 2031 is smoothly engaged with the third gear 2092. In turn, the three-jaw chuck 2091 can drive the valve seat 204 to rotate through the clamp assembly 205 to realize the machining operation. The output shaft of the second motor 2032 is fixedly connected with the second gear 2031. The second gear 2031 is engaged with the third gear 2092. One side of the material clamping driving assembly 209 is provided with three clamp assemblies 205. The three clamp assemblies 205 clamp and fix the valve seat 204. The material clamping driving assembly 209 is connected with the vibration assembly 207. The vibration assembly 207 comprises a connecting frame 2071 and a rotating shaft 2075. One side of the connecting frame 2071 is fixedly connected with a plurality of balls 2072 which are arranged in a circle. The circumferential arrangement mode of the balls 2072 is the same as that of the convex balls 2074, so that the convex balls 2074 can be correspondingly rotated with the balls 2072, so that the extrusion movement between the convex balls 2074 and the balls 2072 can be realized. The two ends of the connecting frame 2071 are fixedly connected with two oppositely arranged material hoppers 2061. The rotating shaft 2075 penetrates out of the connecting frame 2071 and is rotatably installed on the feeding disc 2011 through a bearing. The rotating shaft 2075 can smoothly rotate through the bearing, so that the fourth gear 2076 can stably rotate. One end of the rotating shaft 2075 is fixedly connected with the fourth gear 2076. One side of the fourth gear 2076 is fixedly connected with a plurality of convex balls 2074 which have the same arrangement mode as that of the balls 2072. The connecting frame 2071 and the feeding disc 2011 are fixedly connected with two second springs 2073. When the convex balls 2074 and the balls 2072 are extruded, the connecting frame 2071 compresses the second springs 2073.When the convex ball 2074 is separated from the ball 2072, the second spring 2073 drives the connecting frame 2071 to reset, so that the convex ball 2074 and the ball 2072 cooperate with the second spring 2073 to realize the vibration operation of the material hopper 2061, so that the waste can be smoothly discharged downward. The two ends of the vibration assembly 207 are connected with the two adjustable material guiding assemblies 206.

[0046] In the embodiment: the first motor 2013 drives the first gear 2015 and the gear ring 2012 to transmit power, so that the feeding disc 2011 can drive the material clamping driving assembly 209 and the clamp assembly 205 to rotate, so that the valve seat 204 can rotate to feed, meet the demand of automatic feeding, and the material clamping driving assembly 209 is provided with a plurality of clamps, so that the valve seat 204 can be clamped again in another position during the machining process, avoiding the need to remove and clamp again after machining. At the same time, after the machining is completed, the position of the valve seat 204 can be alternately switched, so as to meet the continuous and efficient machining operation, and facilitate the feeding and discharging operation. Secondly, the second motor 2032 drives the second gear 2031 and the third gear 2092 to transmit power, so that the third gear 2092 and the fourth gear 2076 transmit power, so that the fourth gear 2076 drives the convex ball 2074 and the ball 2072 to produce extrusion movement, and cooperates with the second spring 2073 to realize the vibration operation of the material hopper 2061, so that the waste generated during machining can be smoothly discharged to the discharging assembly 202 through the material hopper 2061, and then discharged, so as to facilitate the cleaning of the waste.

[0047] Embodiment 2: refer to Figures 8-9 and Figures 11-13 The material clamping driving assembly 209 comprises a supporting shaft 2093 rotatably installed on the feeding disc 2011 through a bearing, one end of the supporting shaft 2093 is fixedly connected with a three-jaw chuck 2091, the three-jaw chuck 2091 is fixedly connected with a third gear 2092 outside, and the third gear 2092 is engaged with a fourth gear 2076.

[0048] The clamp assembly 205 comprises a support 2051 fixedly connected on one side of the clamping jaw of the three-jaw chuck 2091, a connecting pipe 2056 is installed through the support 2051, two circular shells 2052 are communicated through the connecting pipe 2056, so that the smooth delivery of the liquid can be ensured, the two ends of the support 2051 are fixedly connected with the circular shells 2052, the sizes of the two circular shells 2052 are different, because the sizes of the two circular shells 2052 are different, the speed of the two piston rods 2053 is different when the clamping plate 2054 is extruded with the valve seat 204, so that the two clamping plates 2054 can be smoothly clamped on the inner and outer surfaces of the valve seat 204, the stability of the valve seat 204 is maintained, and the two circular shells 2052 are communicated through the connecting pipe 2056, the piston rod 2053 is arranged in the circular shell 2052, the piston rod 2053 extends out of the circular shell 2052 and is fixedly connected with the clamping plate 2054, one of the piston rods 2053 is fixedly connected with the first spring 2055, one end of the first spring 2055 is fixedly connected with the inner wall of the circular shell 2052.

[0049] In the embodiment: the three-jaw chuck 2091 drives the clamping jaw to move, the clamping jaw drives the support 2051 to move, the clamping plate 2054 can be attached to the valve seat 204, the clamping plate 2054 is tightened to extrude the piston rod 2053 to move, the piston rod 2053 can drive the other piston rod 2053 and the clamping plate 2054 to move through the liquid, because the sizes of the two circular shells 2052 are different, the movement strokes of the two piston rods 2053 are different in speed, so that the two clamping plates 2054 are smoothly clamped on the inner and outer surfaces of the valve seat 204, the inner and outer surfaces of the valve seat 204 are stressed, the uniformity of the stress can be maintained, the valve seat 204 is prevented from deforming, and thus the machining precision and product quality are improved.

[0050] Embodiment 3: refer to Figure 1 , Figure 4 and Figures 7-8 , the feeding mechanism 200 comprises a switching type feeding assembly 201, the switching type feeding assembly 201 is provided with a driving assembly 203 and a plurality of adjustable material guiding assemblies 206 on one side, the plurality of adjustable material guiding assemblies 206 are connected through two circular ring strips 208, the discharging assembly 202 is transversely arranged in the two circular ring strips 208, a plurality of material clamping driving assemblies 209 are arranged on the switching type feeding assembly 201, when the material clamping driving assemblies 209 circularly move, the material clamping driving assemblies 209 are in transmission connection with the driving assembly 203, the material clamping driving assemblies 209 are provided with three clamp assemblies 205 on one side, the three clamp assemblies 205 clamp and fix the valve seat 204.

[0051] In this embodiment: through the clamp driving assembly 209 drive clamp assembly 205 and make, clamp assembly 205 can be tightened in the inside and outside of valve seat 204, keep the clamping of valve seat 204, this way can provide greater clamping force, enhance the stability of valve seat 204, keep stable position and posture in the process of processing, secondly through a plurality of adjustable guide material assembly 206 can be separated from the clamp driving assembly 203, make each valve seat 204 keep separate processing area, using the way of separation, avoid the flying debris hurt, at the same time after separation, also can prevent the valve seat 204 loose and throw out to hurt the staff, so as to greatly improve the safety of feeding and discharging with double side clamping.

[0052] A kind of cock valve seat inner spherical surface precision machining process, machining process includes the following steps:

[0053] S1, when grinding, the valve seat 204 is placed between the two clamps 2054, then a plurality of supports 2051 are driven by the three-jaw chuck 2091 to converge with each other, so that the clamps 2054 are attached to the valve seat 204, and the piston rod 2053 is driven by the clamps 2054 to move, so that the piston rod 2053 inputs the liquid into another circular shell 2052, at this time the hydraulic pressure is used to clamp the inside and outside of the valve seat 204;

[0054] S2, then the first motor 2013 drives the first gear 2015 and the gear ring 2012 to transmit, the gear ring 2012 drives the annular ring 2014 and the feeding disc 2011 to rotate, the feeding disc 2011 drives the clamp driving assembly 209 and the clamp assembly 205 to move, so that the valve seat 204 corresponds to the grinding head 1011;

[0055] S3, after the valve seat 204 corresponds to the grinding head 1011, the numerical control lathe 100 controls the translational motion of the machining assembly 101, so that the grinding head 1011 contacts the valve seat 204, the electric spindle 1012 drives the grinding head 1011 to grind the valve seat 204, at the same time the second motor 2032 is pushed down by the electric push rod 2033, the second gear 2031 is engaged with the third gear 2092, the second motor 2032 drives the second gear 2031 and the third gear 2092 to transmit, so that the three-jaw chuck 2091 drives the valve seat 204 to rotate through the clamp assembly 205 for grinding work;

[0056] S4, through the movement of the third gear 2092, the third gear 2092 and the fourth gear 2076 are transmitted, the fourth gear 2076 drives the convex ball 2074 and the ball 2072 to produce extrusion movement, and cooperates with the second spring 2073 to realize the vibration of the connecting frame 2071 and the material hopper 2061, at this time the waste generated by the processing of the valve seat 204 smoothly passes through the material hopper 2061 and enters the material conveying pipe 2022 downward, and is discharged through the discharge pipe 2021 along the conveying pipe 2022;

[0057] S5, after the valve seat 204 is processed, the assembly 101 is reset, and the assembly 203 is driven to reset upward, at this time, the switching type feeding assembly 201 drives the valve seat 204 to rotate and separate from the processing area again, then the chuck 2091 drives the clamp assembly 205 to separate, so that the valve seat 204 can be smoothly taken down at this time, and then the material taking operation can be completed.

[0058] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A device for processing the spherical surface precision in the ball seat of a stopcock valve, characterized by, The machining device comprises a numerical control lathe (100), a machining assembly (101) and a feeding mechanism (200) are arranged in the numerical control lathe (100); The feeding mechanism (200) comprises a switching type feeding assembly (201), a driving assembly (203) and a plurality of adjustable material guiding assemblies (206) are arranged on one side of the switching type feeding assembly (201), the plurality of adjustable material guiding assemblies (206) are connected through two circular ring strips (208), and a discharging assembly (202) is arranged to pass through the two circular ring strips (208); A plurality of material clamping driving assemblies (209) are arranged on the switching type feeding assembly (201), the material clamping driving assemblies (209) are connected in transmission with the driving assembly (203) after circumferential movement, three clamp assemblies (205) are arranged on one side of the material clamping driving assemblies (209), the three clamp assemblies (205) are clamped and fixed on valve seats (204), the material clamping driving assemblies (209) are connected in transmission with a vibrating assembly (207), and the two ends of the vibrating assembly (207) are connected with the two adjustable material guiding assemblies (206). The clamp assembly (205) comprises a support (2051), one side of the support (2051) is fixedly connected to a clamping jaw of a three-jaw chuck (2091), a connecting pipe (2056) is arranged to pass through the support (2051), the two ends of the support (2051) are fixedly connected with circular shells (2052), the two circular shells (2052) are different in size and are communicated through the connecting pipe (2056), a piston rod (2053) is arranged in the circular shell (2052), the piston rod (2053) extends out of the circular shell (2052) and is fixedly connected with a clamping plate (2054), one of the piston rods (2053) is fixedly connected with a first spring (2055), and one end of the first spring (2055) is fixedly connected with the inner wall of the circular shell (2052).

2. The device for processing the inner spherical surface accuracy of a stopcock valve seat according to claim 1, characterized in that, The machining assembly (101) comprises a tool rest structure (1014), the tool rest structure (1014) is arranged in the numerical control lathe (100), a tool rest clamp (1013) is arranged on one side of the tool rest structure (1014), an electric spindle (1012) is fixedly arranged on one side of the tool rest clamp (1013), and a grinding head (1011) is arranged at one end of the electric spindle (1012).

3. The device for machining the inner spherical surface of a stopcock valve seat according to claim 2, characterized in that, The switching type feeding assembly (201) comprises a feeding disc (2011), the feeding disc (2011) is fixedly connected with one of the circular ring strips (208), an annular ring (2014) is fixedly connected on one side of the feeding disc (2011), a gear ring (2012) is fixedly connected in the annular ring (2014), the gear ring (2012) is engaged with a first gear (2015), and the first gear (2015) is fixedly connected with the output shaft of a first motor (2013).

4. The device for machining the inner spherical surface of a stopcock valve seat according to claim 3, characterized in that, The discharge assembly (202) comprises a feeding pipe (2022), the feeding tray (2011) is rotatably installed on the feeding pipe (2022) through a bearing, the inner wall bottom of the feeding pipe (2022) is obliquely arranged, one end of the feeding pipe (2022) is communicated with a discharge pipe (2021), the discharge pipe (2021) penetrates out of the numerical control lathe (100) and extends to the rear of the numerical control lathe (100); An upper portion of the feeding pipe (2022) is provided with an inlet (2023), the other end of the feeding pipe (2022) is fixedly connected with a fixed plate (2024), the fixed plate (2024) is fixedly connected in the numerical control lathe (100), and an upper portion of the fixed plate (2024) is fixedly connected with the first motor (2013).

5. The device for machining the inner spherical surface of a stopcock valve seat according to claim 4, characterized in that, The adjustable material guiding assembly (206) comprises a connecting plate (2062), the connecting plate (2062) is fixedly connected on the two annular strips (208), two sliding grooves (2063) are formed in the two sides of the connecting plate (2062), sliding blocks (2064) are slidably connected in the sliding grooves (2063), and the two sliding blocks (2064) are fixedly connected with material hoppers (2061) on one side.

6. The device for machining the inner spherical surface of a stopcock valve seat according to claim 5, characterized in that, The vibration assembly (207) comprises a connecting frame (2071) and a rotating shaft (2075), a plurality of balls (2072) are circumferentially arranged on one side of the connecting frame (2071), both ends of the connecting frame (2071) are fixedly connected with two oppositely arranged material hoppers (2061), the rotating shaft (2075) penetrates out of the connecting frame (2071) and is rotatably installed on the feeding tray (2011) through a bearing, one end of the rotating shaft (2075) is fixedly connected with a fourth gear (2076), a plurality of convex balls (2074) are fixedly connected on one side of the fourth gear (2076) and arranged in the same way as the balls (2072), and two second springs (2073) are fixedly connected between the connecting frame (2071) and the feeding tray (2011). The material clamping driving assembly (209) comprises a supporting shaft (2093), the supporting shaft (2093) is rotatably installed on the feeding tray (2011) through a bearing, one end of the supporting shaft (2093) is fixedly connected with a three-jaw chuck (2091), the three-jaw chuck (2091) is fixedly connected with a third gear (2092) outside, and the third gear (2092) is engaged with the fourth gear (2076).

7. The device for machining the inner spherical surface of a stopcock valve seat according to claim 6, characterized in that The driving assembly (203) comprises an electric push rod (2033), the electric push rod (2033) is fixedly installed on the top wall of the numerical control lathe (100), the bottom end of the electric push rod (2033) is fixedly connected with a second motor (2032), the output shaft of the second motor (2032) is fixedly connected with a second gear (2031), and the second gear (2031) is engaged with the third gear (2092).

8. The machining process of the device for machining the inner spherical surface precision of the ball faucet valve seat according to claim 7, characterized in that, The machining process comprises the following steps: S1, through the clamping material drive assembly (209) cooperation clamp assembly (205) to achieve the work of clamping inside and outside of valve seat (204); S2, through the drive assembly (203) and clamping material drive assembly (209) drive valve seat (204) rotation, and cooperate with the cutter table structure (1014) to the grinding work of valve seat (204); S3, through the clamping material drive assembly (209) and vibration assembly (207) drive material hopper (2061) vibration to discharge the waste.

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