Adjustable spherical surface grinding equipment for ball valve element machining

Abstract

The invention discloses adjustable spherical surface grinding equipment for ball valve element machining, and relates to the technical field of spherical surface grinding, the adjustable spherical surface grinding equipment comprises a rack, the rack is used for fixing and supporting a grinding component, a collecting tank is fixedly mounted at the bottom of the rack, and a lower leakage hole is formed in the top of the rack; the polishing and grinding assembly is used for polishing the spherical surface of the valve element of the ball valve, and a base is fixedly mounted at the bottom of the polishing and grinding assembly; the positioning assembly is used for positioning and fixing a valve core of the ball valve; the number of the bases is four. According to the adjustable spherical surface grinding equipment for machining the valve element of the ball valve, the valve element of the ball valve is placed in the positioning assembly by a worker, the valve element is of a spherical structure and is not prone to being fixed when being polished, and then the worker starts the polishing and grinding assembly to polish the spherical surface of the valve element; chippings formed after polishing fall onto the surface of the rack and fall into the collecting groove along the lower leakage hole, so that the chippings are collected.

Description

Technical Field

[0001] The invention relates to the technical field of spherical surface grinding, in particular to an adjustable spherical surface grinding device for processing a ball valve core. Background Art

[0002] Ball valve, the opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control. The hard-sealed V-type ball valve has a strong shear force between its V-type ball core and the metal valve seat with hard alloy surfacing, which is particularly suitable for media containing fibers, tiny solid particles, etc. The multi-way ball valve can not only flexibly control the confluence, diversion and flow direction switching of the medium on the pipeline, but also close any channel to connect the other two channels. This type of valve should generally be installed horizontally in the pipeline. Ball valves are divided into: pneumatic ball valves, electric ball valves, and manual ball valves according to the driving method.

[0003] The valve core of a ball valve is a key component. It features a unique spherical design and a through hole in the middle, and works in conjunction with valve seats, gaskets and other components. In order to ensure the sealing performance of the valve core and the smoothness of water flow, strict requirements are placed on the roughness of its surface. A smooth surface can ensure a close fit between the valve core and the valve seat, thereby achieving a good sealing effect; at the same time, a smooth through hole can reduce the resistance of water flow, making the water flow smoother. Therefore, polishing the outer and inner surfaces of the ball valve core is an important step to improve its performance and quality.

[0004] At present, when traditional ball valve core polishing equipment is polishing the valve core, the valve core is prone to slipping during positioning and polishing due to its arc-shaped structure, which causes the valve core to deviate and affects the polishing effect. Summary of the invention

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an adjustable spherical grinding device for ball valve core processing, comprising a frame, the frame is used for fixed support of the grinding component, a collecting tank is fixedly installed at the bottom of the frame, and a lower leakage hole is opened at the top of the frame; A polishing assembly, which is used for polishing the spherical surface of a ball valve core, and a base is fixedly installed at the bottom of the polishing assembly; A positioning assembly, which is used for positioning and fixing the valve core of the ball valve; The base is provided with four groups, and the four groups of the base are symmetrically arranged on the outer surface of the collecting tank with the frame as the center. The positioning assembly is fixedly installed on the top of the frame, and the positioning assembly is fixedly installed in the middle of the top of the frame; the staff places the ball valve core inside the positioning assembly. Since the valve core is a spherical structure, it is not easy to fix it when polishing it. Then the staff starts the polishing assembly to polish the spherical surface of the valve core. The debris formed after polishing falls to the surface of the frame and falls into the collecting tank along the lower leakage hole to collect the debris.

[0006] The polishing assembly includes a shaft, which is rotatably mounted on the top of the base, a hinge rod is fixedly mounted on the top of the shaft, an adjusting rod is fixedly mounted on the top of the hinge rod, a connecting rod is fixedly mounted on the surface of the adjusting rod, a positioning piece is fixedly mounted on the surface of the connecting rod, and a polishing piece is movably mounted on the surface of the positioning piece. The staff starts the polishing assembly to rotate the shaft on the base, and adjusts the hinge rod so that the positioning piece drives the polishing piece to polish the spherical surface of the valve core.

[0007] Preferably, the positioning member includes a through rod, and double-ended connecting plates are sleeved on both sides of the outer surface of the through rod, and the opposite surface components of the double-ended connecting plates are provided with clamping grooves, and an airbag cushion is fixedly installed inside the clamping groove. When the staff polishes the valve core, the polishing piece contacts the spherical surface. Since the spherical surface of the valve core is an arc-shaped structure, the polishing piece is squeezed with the valve core when it contacts the spherical surface. As the shaft rod and the hinge rod are displaced, the polishing piece slides on the surface of the through rod according to the shape of the valve core, and moves inside the airbag cushion and is squeezed with the airbag cushion, so that the polishing piece is in closer contact with the spherical surface, thereby improving the efficiency of spherical polishing and avoiding damage to the polishing piece caused by the shape of the valve core when the polishing assembly contacts the valve core.

[0008] Preferably, the polishing member includes a sleeve plate, an extension rod is fixedly mounted on the top of the sleeve plate, the extension rod is movably mounted inside the airbag cushion, the sleeve plate is sleeved on the surface of the penetration rod, and the sleeve plate is slidably mounted on the top of the penetration rod. When the polishing member is polishing the spherical surface of the valve core, the flexible polishing sheet contacts the spherical surface, driving the bent plate and the sleeve plate to slide on the surface of the penetration rod, and driving the extension rod to move inside the airbag cushion and squeeze the airbag cushion, thereby adjusting the contact angle between the flexible polishing sheet and the spherical surface, so as to facilitate multi-angle polishing of the valve core according to the curvature of the spherical surface.

[0009] Preferably, a bent plate is fixedly mounted on the lower surface of the sleeve plate, and a flexible polishing sheet is fixedly mounted on the surface of the bent plate, and the flexible polishing sheet is frictionally matched with the ball core of the ball valve.

[0010] Preferably, the positioning assembly includes a side frame, and the side frame is provided with two groups. The two groups of side frames are fixedly installed on both sides of the top of the frame, and a bent frame is fixedly installed between the opposite surfaces of the side frames. Thin rods are fixedly installed on both sides of the top of the bent frame, and a ball-locking piece is fixedly installed between the opposite surfaces of the thin rods. The staff places the valve core of the ball valve in the ball-locking piece. Since the valve core is an arc-shaped structure, the ball-locking piece is sleeved on the surface of the valve core when polishing the ball valve. The side frames are supported on both sides of the bent frame to support and limit the ball-locking piece. After the spherical surface polishing on one side is completed, the staff rotates the valve core to adjust the valve core position, so as to adjust the spherical surface polishing position.

[0011] Preferably, the side frame includes abutment plates, which are fixedly mounted on both sides of the top of the frame and on both sides of the outer surface of the bent frame.

[0012] Preferably, side frames are slidably mounted on both sides of the top of the abutment plate, a support frame is fixedly mounted between opposite surfaces of the side frames, a clamping rod is fixedly mounted on the surface of the support frame, and the clamping rod is fixedly mounted on both sides of the outer surface of the ball clamping member. After the ball valve is polished, the staff slides the side frames on both sides to make the support frame slide in the abutment plate, so that the clamping force of the clamping ring on the clamping rod is reduced, so that the staff can take out the valve core easily.

[0013] Preferably, the ball clamping member includes an inner ring, and clamping rings are fixedly installed on both sides of the outer surface of the inner ring. Two clamping rings are provided, and clamping plates are fixedly installed on the outer surfaces of the two clamping rings. The clamping rings are wrapped around both sides of the valve core. When fixing the valve core, the staff pushes the side frames on both sides so that the support frame slides in the abutment plate and is inserted into the clamping rings on both sides through the clamping rod, thereby fixing the valve core to prevent the valve core from slipping due to unstable fixation during polishing, which causes the valve core to deviate and affect the accuracy of valve core polishing.

[0014] Preferably, a round rod is fixedly installed between opposite surfaces of the clamping plates, the round rod is fixedly connected to the thin rod, and an inclined plate is fixedly installed on the surface of the clamping ring on one side close to the bent frame.

[0015] Preferably, four inclined plates are provided, and the four inclined plates are distributed in a circumferential shape on the inner surface of the clamping plate, and the bottom of each inclined plate is fixedly installed with a bottom ring. The valve core is placed in the clamping ring, the inclined plates are covered on the outside of the valve core, and the bottom ring supports the valve core to facilitate the positioning of the valve core.

[0016] The present invention provides an adjustable spherical surface grinding device for ball valve core processing, which has the following beneficial effects: 1. The adjustable spherical grinding equipment for processing the ball valve core is used. The staff places the ball valve core inside the positioning assembly. Since the valve core is a spherical structure, it is not easy to fix it during polishing. Then the staff starts the polishing assembly to polish the spherical surface of the valve core. The debris formed after polishing falls onto the surface of the frame and falls into the collection tank along the lower leakage hole to collect the debris.

[0017] 2. The adjustable spherical grinding equipment for processing the valve core of the ball valve is used. When the staff polishes the valve core, the polishing piece contacts the spherical surface. Since the spherical surface of the valve core is an arc-shaped structure, the polishing piece is squeezed with the valve core when in contact with the spherical surface. As the shaft rod and the hinge rod move, the polishing piece slides on the surface of the penetration rod according to the shape of the valve core, and moves in the airbag cushion and is squeezed with the airbag cushion, so that the polishing piece is in closer contact with the spherical surface, thereby improving the spherical polishing efficiency and avoiding damage to the polishing piece caused by the shape of the valve core when the polishing component contacts the valve core.

[0018] 3. The adjustable spherical grinding equipment for processing the valve core of the ball valve drives the bending plate and the sleeve plate to slide on the surface of the penetration rod when the flexible grinding sheet contacts the spherical surface when polishing the spherical surface of the valve core through the polishing part, and drives the extension rod to move in the airbag cushion and squeeze the airbag cushion, thereby adjusting the contact angle between the flexible grinding sheet and the spherical surface, so as to facilitate multi-angle polishing of the valve core according to the curvature of the spherical surface.

[0019] 4. The adjustable spherical grinding equipment for processing the ball valve core is used. The staff places the ball valve core in the ball clamping part. Since the valve core is an arc-shaped structure, the ball clamping part is sleeved on the surface of the valve core when polishing the ball valve. The side support is supported on both sides of the bent frame to support and limit the ball clamping part. After the spherical polishing on one side is completed, the staff rotates the valve core to adjust the valve core position, so as to adjust the spherical polishing position.

[0020] 5. The adjustable spherical grinding equipment for processing the valve core of the ball valve. After the ball valve is polished, the staff slides the side frames on both sides to make the support frame slide in the abutment plate, so that the clamping force of the clamping ring on the clamping rod is reduced, so that the staff can take out the valve core; the clamping ring is covered on both sides of the valve core. When fixing the valve core, the staff pushes the side frames on both sides to make the support frame slide in the abutment plate, and inserts the clamping rod into the clamping rings on both sides, thereby fixing the valve core to prevent the valve core from sliding due to unstable fixation during polishing, causing the valve core to deviate and affect the accuracy of valve core polishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the external structure of an adjustable spherical surface grinding device for processing a ball valve core of the present invention; Figure 2 This is a schematic diagram of the connection structure between the polishing assembly and the frame of the present invention; Figure 3 This is a schematic diagram of the connection structure between the positioning assembly and the frame of the present invention; Figure 4 This is a schematic diagram of the structure of the positioning component of the present invention; Figure 5 This is a schematic diagram of the connection structure between the ball clamping member and the bending frame of the present invention; Figure 6 It is a schematic diagram of the top view of the ball clamping member of the present invention; Figure 7 It is a schematic diagram of the structure of the polishing assembly of the present invention; Figure 8 It is a schematic diagram of the structure of the polishing part of the present invention; Fig. 9 It is a schematic diagram of the positioning member structure of the present invention.

[0022] In the figure: 1. frame; 2. collecting tank; 3. positioning assembly; 31. ball clamp; 311. clamping ring; 312. inner ring; 313. round rod; 314. clamping plate; 315. bottom ring; 316. inclined plate; 32. side frame; 321. abutment plate; 322. support frame; 323. side frame; 324. clamping rod; 33. bent frame; 34. thin rod; 4. base; 5. polishing assembly; 51. shaft rod; 52. hinge rod; 53. adjustment rod; 54. connecting rod; 55. positioning piece; 551. through rod; 552. clamping groove; 553. airbag cushion; 554. double-head connecting plate; 56. polishing piece; 561. sleeve plate; 562. flexible polishing sheet; 563. bent plate; 564. extension rod. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0024] The first embodiment, as Figures 1 to 3 As shown, the present invention provides a technical solution: an adjustable spherical grinding device for ball valve core processing, comprising a frame 1, the frame 1 is used for fixed support of the grinding component, a collecting tank 2 is fixedly installed at the bottom of the frame 1, and a lower leakage hole is opened at the top of the frame 1; A polishing assembly 5, which is used for polishing the spherical surface of the ball valve core, and a base 4 is fixedly installed at the bottom of the polishing assembly 5; A positioning component 3, which is used for positioning and fixing the valve core of the ball valve; The base 4 is provided with four groups, and the four groups of the base 4 are symmetrically arranged on the outer surface of the collecting tank 2 with the frame 1 as the center. The positioning component 3 is fixedly installed on the top of the frame 1, and the positioning component 3 is fixedly installed in the middle of the top of the frame 1; the staff places the ball valve core inside the positioning component 3. Since the valve core is a spherical structure, it is not easy to fix it when polishing it. Then the staff starts the polishing component 5 to polish the spherical surface of the valve core. The debris formed after polishing falls to the surface of the frame 1 and falls into the collecting tank 2 along the lower leakage hole to collect the debris.

[0025] The second embodiment is based on the first embodiment. Figures 4 to 6 As shown, preferably, the side frame 32 includes abutment plates 321 , and the abutment plates 321 are fixedly mounted on both sides of the top of the frame 1 , and the abutment plates 321 are fixedly mounted on both sides of the outer surface of the bent frame 33 .

[0026] Preferably, side frames 323 are slidably mounted on both sides of the top of the abutment plate 321, and support frames 322 are fixedly mounted between opposite surfaces of the side frames 323. Clamping rods 324 are fixedly mounted on the surface of the support frames 322, and the clamping rods 324 are fixedly mounted on both sides of the outer surface of the ball clamping member 31. After the ball valve is polished, the staff slides the side frames 323 on both sides to make the support frames 322 slide in the abutment plate 321, so that the clamping force of the clamping rods 324 on the clamping ring 311 is reduced, so that the staff can take out the valve core.

[0027] Preferably, the ball clamping member 31 includes an inner ring 312, and a clamping ring 311 is fixedly installed on both sides of the outer surface of the inner ring 312. Two clamping rings 311 are provided, and a clamping plate 314 is fixedly installed on the outer surface of the two clamping rings 311. The clamping ring 311 covers both sides of the valve core. When fixing the valve core, the staff pushes the side frames 323 on both sides, so that the support frame 322 slides in the abutment plate 321, and is inserted into the clamping rings 311 on both sides through the clamping rod 324, so as to fix the valve core, prevent the valve core from being unstable and sliding during polishing, causing the valve core to deviate and affect the accuracy of valve core polishing.

[0028] Preferably, a round rod 313 is fixedly installed between opposite surfaces of the clamping plate 314 , the round rod 313 is fixedly connected to the thin rod 34 , and an inclined plate 316 is fixedly installed on the surface of the clamping ring 311 close to the bent frame 33 .

[0029] Preferably, four inclined plates 316 are provided, and the four inclined plates 316 are distributed in a circular shape on the inner surface of the clamping plate 314, and the bottom of each inclined plate 316 is fixedly installed with a bottom ring 315. The valve core is placed in the clamping ring 311, the inclined plates 316 are covered on the outside of the valve core, and the bottom ring 315 supports the valve core to facilitate the positioning of the valve core.

[0030] The third embodiment is based on the first and second embodiments. Figures 7 to 9 As shown, the polishing assembly 5 includes a shaft 51, which is rotatably mounted on the top of the base 4, a hinge 52 is fixedly mounted on the top of the shaft 51, an adjusting rod 53 is fixedly mounted on the top of the hinge 52, a connecting rod 54 is fixedly mounted on the surface of the adjusting rod 53, a positioning member 55 is fixedly mounted on the surface of the connecting rod 54, and a polishing member 56 is movably mounted on the surface of the positioning member 55. The staff starts the polishing assembly 5 to rotate the shaft 51 on the base 4, and adjusts the hinge 52 so that the positioning member 55 drives the polishing member 56 to polish the spherical surface of the valve core.

[0031] Preferably, the positioning member 55 comprises a through rod 551, and the two sides of the outer surface of the through rod 551 are sleeved with double-headed connecting plates 554, and the opposite surface components of the double-headed connecting plates 554 are provided with clamping grooves 552, and the airbag cushion 553 is fixedly installed inside the clamping grooves 552. When the staff polishes the valve core, the polishing member 56 contacts the spherical surface. Since the spherical surface of the valve core is an arc-shaped structure, the polishing member 56 is squeezed with the valve core when it contacts the spherical surface. As the shaft rod 51 and the hinge rod 52 are displaced, the polishing member 56 slides on the surface of the through rod 551 according to the shape of the valve core, and moves in the airbag cushion 553 and is squeezed with the airbag cushion 553, so that the polishing member 56 is in closer contact with the spherical surface, improving the efficiency of spherical polishing, and avoiding the polishing member 56 being damaged by the shape of the valve core when the polishing assembly 5 contacts the valve core.

[0032] Preferably, the polishing member 56 comprises a sleeve plate 561, an extension rod 564 is fixedly mounted on the top of the sleeve plate 561, the extension rod 564 is movably mounted inside the airbag cushion 553, the sleeve plate 561 is sleeved on the surface of the penetration rod 551, and the sleeve plate 561 is slidably mounted on the top of the penetration rod 551. When the polishing member 56 is polishing the spherical surface of the valve core, the flexible polishing sheet 562 contacts the spherical surface, drives the bent plate 563 and the sleeve plate 561 to slide on the surface of the penetration rod 551, and drives the extension rod 564 to move in the airbag cushion 553 and squeeze the airbag cushion 553, thereby adjusting the contact angle between the flexible polishing sheet 562 and the spherical surface, so as to polish the valve core at multiple angles according to the curvature of the spherical surface.

[0033] Preferably, a bent plate 563 is fixedly mounted on the lower surface of the sleeve plate 561 , and a flexible polishing sheet 562 is fixedly mounted on the surface of the bent plate 563 , and the flexible polishing sheet 562 is frictionally matched with the ball core of the ball valve.

[0034] Preferably, the positioning assembly 3 includes a side frame 32, and the side frame 32 is provided with two groups. The two groups of side frames 32 are fixedly installed on both sides of the top of the frame 1, and a bent frame 33 is fixedly installed between the opposite surfaces of the side frames 32. Thin rods 34 are fixedly installed on both sides of the top of the bent frame 33, and a ball-locking member 31 is fixedly installed between the opposite surfaces of the thin rod 34. The staff places the ball valve core in the ball-locking member 31. Since the valve core is an arc-shaped structure, the ball-locking member 31 is sleeved on the surface of the valve core when polishing the ball valve. The side frames 32 are supported on both sides of the bent frame 33 to support and limit the ball-locking member 31. After the spherical surface polishing on one side is completed, the staff rotates the valve core to adjust the position of the valve core, so as to adjust the spherical surface polishing position.

[0035] When in use, the staff places the ball valve core inside the positioning component 3. Since the valve core is a spherical structure, it is not easy to fix it when polishing it. Then the staff starts the polishing component 5 to polish the spherical surface of the valve core. The debris formed after polishing falls onto the surface of the frame 1 and falls into the collection tank 2 along the lower leakage hole to collect the debris.

[0036] When the staff is polishing the valve core, the polishing piece 56 contacts the spherical surface. Since the spherical surface of the valve core is an arc-shaped structure, the polishing piece 56 is squeezed with the valve core when in contact with the spherical surface. As the shaft rod 51 and the hinge rod 52 move, the polishing piece 56 slides on the surface of the penetration rod 551 according to the shape of the valve core, and moves in the airbag cushion 553 and is squeezed with the airbag cushion 553, so that the polishing piece 56 is in closer contact with the spherical surface, thereby improving the spherical polishing efficiency and avoiding damage to the polishing piece 56 due to the shape of the valve core when the polishing assembly 5 contacts the valve core.

[0037] When the polishing piece 56 is polishing the spherical surface of the valve core, the flexible polishing sheet 562 contacts the spherical surface, driving the bent plate 563 and the sleeve plate 561 to slide on the surface of the penetration rod 551, and driving the extension rod 564 to move in the airbag cushion 553 and squeeze the airbag cushion 553, thereby adjusting the contact angle between the flexible polishing sheet 562 and the spherical surface, so as to facilitate multi-angle polishing of the valve core according to the curvature of the spherical surface.

[0038] The staff places the ball valve core in the ball retaining part 31. Since the valve core is an arc-shaped structure, the ball retaining part 31 is sleeved on the surface of the valve core when polishing the ball valve. The side connecting frame 32 is supported on both sides of the curved frame 33 to support and limit the ball retaining part 31. After the spherical polishing on one side is completed, the staff rotates the valve core to adjust the valve core position, so as to facilitate the adjustment of the spherical polishing position.

[0039] After the ball valve is polished, the staff slides the side frames 323 on both sides to make the support frame 322 slide in the abutment plate 321, so that the clamping force of the clamping ring 311 by the clamping rod 324 is reduced, so that the staff can take out the valve core.

[0040] The clamping ring 311 is wrapped around both sides of the valve core. When fixing the valve core, the staff pushes the side frames 323 on both sides to make the support frame 322 slide in the abutment plate 321 and insert into the clamping rings 311 on both sides through the clamping rod 324, so as to fix the valve core and prevent the valve core from slipping due to unstable fixation during polishing, which will cause the valve core to deviate and affect the polishing accuracy of the valve core.

[0041] The valve core is placed in the clamping ring 311, the inclined plate 316 is wrapped around the outside of the valve core, and the bottom ring 315 supports the valve core to facilitate the positioning of the valve core.

[0042] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An adjustable spherical grinding device for ball valve core processing, characterized in that: include: A frame (1), the frame (1) being used for fixedly supporting the grinding component, a collecting trough (2) being fixedly mounted on the bottom of the frame (1), and a lower leakage hole being opened on the top of the frame (1); A polishing assembly (5), the polishing assembly (5) being used for polishing the spherical surface of a ball valve core, a base (4) being fixedly mounted on the bottom of the polishing assembly (5); A positioning component (3), the positioning component (3) is used to position and fix the valve core of the ball valve; The base (4) is provided in four groups, and the four groups of the base (4) are symmetrically arranged on the outer surface of the collection tank (2) with the frame (1) as the center, and the positioning assembly (3) is fixedly installed on the top of the frame (1), and the positioning assembly (3) is fixedly installed in the middle of the top of the frame (1); The polishing assembly (5) comprises a shaft (51), the shaft (51) being rotatably mounted on the top of the base (4), a hinge rod (52) being fixedly mounted on the top of the shaft (51), an adjusting rod (53) being fixedly mounted on the top of the hinge rod (52), a connecting rod (54) being fixedly mounted on the surface of the adjusting rod (53), a positioning member (55) being fixedly mounted on the surface of the connecting rod (54), and a polishing member (56) being movably mounted on the surface of the positioning member (55); The positioning assembly (3) comprises a side frame (32), wherein two groups of the side frames (32) are provided, and the two groups of the side frames (32) are fixedly mounted on both sides of the top of the frame (1), a bent frame (33) is fixedly mounted between opposite surfaces of the side frames (32), thin rods (34) are fixedly mounted on both sides of the top of the bent frame (33), and a ball-locking member (31) is fixedly mounted between opposite surfaces of the thin rod (34).

2. The adjustable spherical grinding device for ball valve core processing according to claim 1 is characterized in that: The positioning member (55) comprises a penetration rod (551), and double-end connecting plates (554) are sleeved on both sides of the outer surface of the penetration rod (551). The opposite surface component of the double-end connecting plate (554) is provided with a clamping groove (552), and an airbag cushion (553) is fixedly installed inside the clamping groove (552).

3. The adjustable spherical grinding device for ball valve core processing according to claim 2 is characterized in that: The polishing member (56) comprises a sleeve plate (561), an extension rod (564) is fixedly mounted on the top of the sleeve plate (561), the extension rod (564) is movably mounted inside the airbag cushion (553), the sleeve plate (561) is sleeved on the surface of the penetration rod (551), and the sleeve plate (561) is slidably mounted on the top of the penetration rod (551).

4. The adjustable spherical grinding device for ball valve core processing according to claim 3 is characterized in that: A bent plate (563) is fixedly mounted on the lower surface of the sleeve plate (561), and a flexible polishing sheet (562) is fixedly mounted on the surface of the bent plate (563), wherein the flexible polishing sheet (562) is frictionally matched with the ball core of the ball valve.

5. The adjustable spherical grinding device for ball valve core processing according to claim 1 is characterized in that: The side frame (32) comprises a butt plate (321), wherein the butt plate (321) is fixedly mounted on both sides of the top of the frame (1), and the butt plate (321) is fixedly mounted on both sides of the outer surface of the curved frame (33).

6. The adjustable spherical grinding device for ball valve core processing according to claim 5 is characterized in that: Side frames (323) are slidably mounted on both sides of the top of the abutment plate (321), a support frame (322) is fixedly mounted between opposite surfaces of the side frames (323), a clamping rod (324) is fixedly mounted on the surface of the support frame (322), and the clamping rod (324) is fixedly mounted on both sides of the outer surface of the clamping ball member (31).

7. The adjustable spherical grinding device for ball valve core processing according to claim 6 is characterized in that: The ball clamping member (31) comprises an inner ring (312), and clamping rings (311) are fixedly mounted on both sides of the outer surface of the inner ring (312). Two clamping rings (311) are provided, and clamping plates (314) are fixedly mounted on the outer surfaces of the two clamping rings (311).

8. The adjustable spherical grinding device for ball valve core processing according to claim 7 is characterized in that: A round rod (313) is fixedly mounted between opposite surfaces of the clamping plate (314), the round rod (313) is fixedly connected to the thin rod (34), and an inclined plate (316) is fixedly mounted on the surface of the clamping ring (311) on a side close to the bent frame (33).

9. The adjustable spherical grinding device for ball valve core processing according to claim 8 is characterized in that: Four inclined plates (316) are provided, and the four inclined plates (316) are distributed in a circular shape on the inner surface of the clamping plate (314), and a bottom ring (315) is fixedly mounted on the bottom of each of the inclined plates (316).

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