Swing type ball grinding device

Abstract

According to the technical scheme, the swing type ball grinding device is characterized in that the swing type ball grinding device comprises a grinding table and a ball supporting assembly located on the grinding table, a ball valve ball matched with the ball supporting assembly is arranged on the ball supporting assembly, and a swing assembly matched with the ball valve ball is further arranged on the grinding table; grinding assemblies are arranged on the left side and the right side of the swing assembly correspondingly, the swing assembly comprises a swing plate and a swing rotating disc fixedly connected to the lower side of the swing plate, the swing assembly is further provided with a swing motor located on the lower side of the grinding table, the grinding assembly comprises a grinding frame and a grinding structure matched with the grinding frame, and a lifting sliding groove is formed in the grinding frame; a lifting sliding block is arranged in the lifting sliding groove, a grinding fixing plate is arranged at the upper end of the grinding frame, a lifting electric cylinder is arranged at the upper end of the grinding fixing plate, and a piston rod of the lifting electric cylinder is fixedly connected with the lifting sliding block. The grinding device has the advantages of being simple in structure, wide in applicability, high in grinding efficiency and high in machining speed.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valve ball processing, in particular to a swing type ball grinding device. 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 main feature of the ball valve is its compact structure. It is suitable for general working media such as water, solvents, acids and natural gas, and is also suitable for media with harsh working conditions, such as oxygen, hydrogen peroxide, methane and ethylene. It is suitable for frequent operation, quick opening and closing, and light. The fluid resistance is small. The structure is simple, the relative volume is small, the weight is light, and it is easy to maintain. The sealing performance is good and is not limited by the installation direction. The flow direction of the medium can be arbitrary. The ball is a key part as the pressure control opening and closing part of the ball valve. Its processing and grinding have always been the focus and difficulty in the production of ball valves.

[0003] The existing ball grinding mechanism has the following problems: 1. Limited applicability, cannot adapt to balls of different sizes; 2. Low grinding efficiency, reducing the ball processing speed. Therefore, it is very necessary to improve the existing ball grinding mechanism. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a swinging ball grinding device, which has the effects of simple structure, wide applicability, high grinding efficiency and fast processing speed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a swing-type ball grinding device, comprising a grinding table and a ball support assembly located on the grinding table, a ball valve ball matched therewith being arranged on the ball support assembly, a swing assembly matched therewith being arranged on the grinding table, grinding assemblies matched therewith being arranged on the left and right sides of the swing assembly, the swing assembly comprising a swing plate and a swing turntable fixedly connected to the lower side of the swing plate, a swing bearing disk matched therewith being sleeved on the outer side of the swing turntable, the swing assembly also being provided with a swing motor located at the lower side of the grinding table, the swing motor The rotating shaft of the machine passes through the grinding table and is fixedly connected to the swing turntable. A swing support frame compatible with the swing motor is also arranged on the lower side of the grinding table. The grinding assembly includes a grinding frame and a grinding structure compatible with the grinding frame. A lifting slide is provided on the grinding frame, and a lifting slider slidably connected to the lifting slide is provided in the lifting slide. The lifting slider is connected to the grinding structure. A grinding fixing plate fixedly connected to the grinding frame is provided at the upper end of the grinding frame, and a lifting electric cylinder fixedly connected to the grinding fixing plate is provided at the upper end of the grinding fixing plate. The piston rod of the lifting electric cylinder passes through the grinding fixing plate, and the piston rod of the lifting electric cylinder is fixedly connected to the lifting slider.

[0006] By adopting the above technical solution, the swing component drives the two grinding components to swing back and forth around the ball of the ball valve, thereby grinding the ball of the ball valve. The swing component drives the swing turntable through the swing motor and then drives the swing plate to swing back and forth around the central axis of the swing turntable. Therefore, the grinding component on the swing plate comprehensively grinds the arc surface of the ball of the ball valve, thereby improving the grinding effect. The lifting electric cylinder and the lifting slider cooperate with each other, so that the grinding structure can adapt to ball valve balls of different specifications and sizes.

[0007] The utility model is further configured as follows: the ball support assembly includes a ball support structure inserted into the ball of the ball valve, the front and rear ends of the ball support structure are provided with ball fixing seats detachably connected thereto, a rotating rod is inserted into the ball fixing seat, a support bearing is also provided between the rotating rod and the ball fixing seat, a clamping structure adapted to the ball support structure is provided at the end of the rotating rod, a motor fixing seat is provided on the ball fixing seat on one side of the ball support structure, a ball motor adapted thereto is fixedly connected to the motor fixing seat, and the rotating shaft of the ball motor and the rotating rod are fixedly connected to each other.

[0008] By adopting the above technical solution, the rotating rod is provided with a clamping structure to facilitate the rapid loading and unloading process when the ball valve ball is ground. The ball motor drives the rotating rod to rotate, thereby driving the ball support structure and the ball valve ball to rotate, so that the grinding assembly grinds the ball valve ball.

[0009] The utility model is further configured as follows: the clamping structure includes an upper clamping block and a lower clamping block that are compatible with each other, and the upper clamping block and the lower clamping block are both provided with a clamping groove that is compatible with the spherical support structure. One ends of the upper clamping block and the lower clamping block are hingedly connected to each other, and the other ends are clamped and connected to each other by setting a movable bolt, and the lower clamping block is fixedly connected to the rotating rod.

[0010] By adopting the above technical solution, the movable bolt controls the connection state of the upper clamping block and the lower clamping block, so that the spherical support structure can be quickly disassembled and connected to the rotating rod.

[0011] The utility model is further configured as follows: the spherical support structure includes a support rod and a plurality of support plates distributed around the circumference of the support rod, a rubber pad fixedly connected to the support plate is provided on the outer surface of the support plate, and a support sleeve is slidably connected to the front and rear sides of the support rod respectively, and a plurality of connecting rods evenly distributed along the circumferential direction of the support sleeve are provided on the support sleeve, and the connecting rod and the support plate are movably connected to each other, and a limiting sleeve adapted to the supporting sleeve is also provided at one end of the outer side of the supporting sleeve, and a limiting protrusion and a sliding protrusion are respectively provided on the limiting sleeve and the support sleeve, and the limiting protrusion and the sliding protrusion are staggered with each other, and the limiting protrusion and the sliding protrusion are both provided with external threaded parts with equal thread spacing, and a locking nut threadedly connected to the supporting plate is sleeved on the external threaded part, and limiting steps fixedly connected to the limiting sleeve are provided at both ends of the support rod, and a clamping part adapted to the clamping structure is also provided on the limiting step, and the clamping part is arranged in a regular polygonal structure.

[0012] By adopting the above technical solution, the limit sleeve, the supporting sleeve and the locking nut cooperate with each other to control the support plate opening angle, thereby adapting to the inner diameter of the ball of the ball valve of different specifications, fixing or loosening the ball of the ball valve, and the clamping part facilitates the detachable connection between the ball support structure and the ball fixing seat.

[0013] The utility model is further configured as follows: a limit plate fixedly connected to the end of the swing plate is provided, a telescopic motor fixedly connected to the limit plate is provided, the rotating shaft of the telescopic motor passes through the limit plate, and the rotating shaft of the telescopic motor is fixedly connected to a telescopic screw rod, the telescopic screw rod passes through the lower end of the grinding frame and is movably connected to each other by means of threads, the swing plate is also provided with a guide protrusion matched with the lower end of the grinding frame, and the lower end of the grinding frame is provided with a guide groove matched with the guide protrusion.

[0014] By adopting the above technical solution, the telescopic motor drives the grinding frame to slide left and right along the guide protrusion so that the grinding structure on the grinding frame can adapt to ball valve balls of different specifications and sizes, greatly improving the adaptability of the grinding device.

[0015] The utility model is further configured as follows: a grinding motor compatible with the grinding structure is provided on the lifting slider, the rotating shaft of the grinding motor passes through the grinding frame, a grinding driving wheel is fixedly connected to the rotating shaft of the grinding motor, a grinding connecting rod fixedly connected to the grinding structure is provided, the grinding connecting rod passes through the grinding frame and a grinding driven wheel is fixedly connected to the grinding connecting rod, a grinding transmission belt is sleeved on the grinding driving wheel and the grinding driven wheel, and the rotating shaft of the grinding motor and the grinding connecting rod are movably connected to the grinding frame by setting a grinding bearing.

[0016] By adopting the above technical solution, the grinding motor drives the grinding structure to rotate, thereby improving the grinding efficiency of the grinding structure on the surface of the ball valve ball.

[0017] In summary, the utility model has the following beneficial effects:

[0018] 1. The swing assembly drives the two grinding assemblies to swing back and forth around the ball of the ball valve, thereby grinding the ball of the ball valve. The swing assembly drives the swing turntable through the swing motor, and then drives the swing plate to swing back and forth around the central axis of the swing turntable, so that the grinding assembly on the swing plate fully grinds the arc surface of the ball of the ball valve, improving the grinding effect. The lifting electric cylinder and the lifting slide block cooperate with each other, so that the grinding structure can adapt to ball valves of different specifications and sizes;

[0019] 2. The support plate opening angle is controlled by the cooperation of the limit sleeve, the support sleeve and the locking nut, so as to adapt to the inner diameter of the ball of the ball valve of different specifications, fix or loosen the ball of the ball valve, and the clamping part facilitates the detachable connection between the ball support structure and the ball fixing seat; the connection state of the upper clamping block and the lower clamping block is controlled by the movable bolt, so that the ball support structure can be quickly disassembled and connected with the rotating rod;

[0020] 3. The grinding motor drives the grinding structure to rotate, thereby improving the grinding efficiency of the grinding structure on the surface of the ball valve ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the first embodiment of the present utility model.

[0022] Figure 2 This is the front view of the first embodiment of the utility model.

[0023] Figure 3 for Figure 2 Section view at AA in the middle.

[0024] Figure 4 for Figure 2 Section view at BB in the middle.

[0025] Figure 5 It is a schematic diagram of the back and forth swinging of the grinding assembly in the first embodiment of the utility model.

[0026] Figure 6 This is a schematic diagram of disassembling a ball valve ball according to the first embodiment of the utility model.

[0027] Figure 7 for Figure 6 A local enlarged schematic diagram of point I in the middle.

[0028] Figure 8 for Figure 6 A local enlarged schematic diagram of point II in the middle.

[0029] Fig. 9 It is a three-dimensional diagram of the second embodiment of the present utility model.

[0030] Figure numerals: 1. grinding table; 2. ball support assembly; 21. ball support structure; 211. support rod; 2111. clamping part; 212. support plate; 213. support sleeve; 2131. sliding protrusion; 214. connecting rod; 215. limiting sleeve; 2151. limiting protrusion; 216. locking nut; 22. ball fixing seat; 221. rotating rod; 222. support bearing; 223. motor fixing seat; 224. ball motor; 23. clamping structure; 231. upper clamping block; 232. lower clamping block; 233. movable bolt; 3. ball valve Sphere; 4. Swinging assembly; 41. Swinging plate; 411. Limiting plate; 412. Telescopic motor; 413. Telescopic screw rod; 414. Guide protrusion; 42. Swinging turntable; 43. Swinging bearing plate; 44. Swinging motor; 45. Swinging support frame; 5. Grinding assembly; 51. Grinding frame; 511. Lifting slide; 512. Lifting slider; 513. Grinding fixed plate; 52. Grinding structure; 521. Grinding connecting rod; 522. Grinding driven wheel; 53. Lifting electric cylinder; 54. Grinding motor; 541. Grinding driving wheel; 542. Grinding transmission belt. DETAILED DESCRIPTION

[0031] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0032] Embodiment 1, this embodiment discloses a swing type ball grinding device, such as Figures 1 to 8 As shown, it includes a grinding table 1 and a ball support assembly 2 located on the grinding table 1, the ball support assembly 2 is provided with a ball valve ball 3 adapted thereto, the grinding table 1 is also provided with a swing assembly 4 adapted thereto, the left and right sides of the swing assembly 4 are provided with grinding assemblies 5 adapted thereto, the swing assembly 4 drives the two grinding assemblies 5 to swing back and forth around the ball valve ball 3, thereby grinding the ball valve ball 3.

[0033] The ball support assembly 2 includes a ball support structure 21 inserted into the ball valve ball 3, and the front and rear ends of the ball support structure 21 are provided with a ball fixing seat 22 detachably connected thereto, and a rotating rod 221 is inserted into the ball fixing seat 22, and a support bearing 222 is also provided between the rotating rod 221 and the ball fixing seat 22, and a clamping structure 23 adapted to the ball support structure 21 is provided at the end of the rotating rod 221, and the rotating rod 221 is convenient for the ball valve ball to be moved by setting the clamping structure 23. During the rapid loading and unloading process of grinding the ball valve body 3, a motor fixing seat 22 is provided on the ball fixing seat 22 on one side of the ball supporting structure 21, and a ball motor 224 adapted thereto is fixedly connected to the motor fixing seat 223. The rotating shaft of the ball motor 224 is fixedly connected to the rotating rod 221, and the ball motor 224 drives the rotating rod 221 to rotate, thereby driving the ball supporting structure 21 and the ball valve ball 3 to rotate, so that the grinding assembly 5 grinds the ball valve ball 3.

[0034] The clamping structure 23 includes an upper clamping block 231 and a lower clamping block 232 that are adapted to each other. The upper clamping block 231 and the lower clamping block 232 are both provided with clamping grooves that are adapted to the spherical support structure 21. One ends of the upper clamping block 231 and the lower clamping block 232 are hingedly connected to each other, and the other ends are clamped and connected to each other by setting a movable bolt 233. The lower clamping block 232 is fixedly connected to the rotating rod 221. The connection state of the upper clamping block 231 and the lower clamping block 232 is controlled by the movable bolt 233, so that the spherical support structure 21 can be quickly disassembled and connected to the rotating rod 221.

[0035] The spherical support structure 21 includes a support rod 211 and a plurality of support plates 212 distributed around the circumference of the support rod 211. The outer surface of the support plate 212 is provided with a rubber pad fixedly connected thereto. The front and rear sides of the support rod 211 are respectively slidably connected with support sleeves 213. The support sleeve 213 is provided with a plurality of connecting rods 214 evenly distributed along its circumferential direction. The connecting rod 214 and the support plate 212 are movably connected to each other. A limiting sleeve 215 adapted to the supporting sleeve 213 is also provided at one end of the outer side thereof. A limiting protrusion 2151 and a sliding protrusion 2131 are respectively provided on the limiting sleeve 215 and the supporting sleeve 213. The limiting protrusion 2151 and the sliding protrusion 2131 are staggered with each other, and both the limiting protrusion 2151 and the sliding protrusion 2131 are provided with threaded The external threaded portion has equal spacing, and a locking nut 216 is sleeved on the external threaded portion and is threadedly connected thereto. The supporting sleeve 213 slides on the supporting rod 211, thereby driving the connecting rod 214 to expand or contract the supporting plate 212, thereby fixing or loosening the ball 3 of the ball valve. The limiting sleeve 215, the supporting sleeve 213 and the locking nut 216 cooperate with each other to control the expansion angle of the supporting plate 212, thereby adapting to the inner diameter of the ball 3 of the ball valve of different specifications. Limiting steps fixedly connected to the limiting sleeve 215 are provided at both ends of the support rod 211. A clamping portion 2111 adapted to the clamping structure 23 is also provided on the limiting step. The clamping portion 2111 is arranged in a regular polygonal structure. The clamping portion 2111 facilitates the detachable connection between the ball supporting structure 21 and the ball fixing seat 22.

[0036] The swing assembly 4 includes a swing plate 41 and a swing turntable 42 fixedly connected to the lower side of the swing plate 41. A swing bearing plate 43 matching the swing turntable 42 is sleeved on the outer side of the swing turntable 42. The swing assembly 4 is also provided with a swing motor 44 located at the lower side of the grinding table 1. The rotating shaft of the swing motor 44 passes through the grinding table 1 and is fixedly connected to the swing turntable 42. A swing support frame 45 matching the swing motor 44 is also provided on the lower side of the grinding table 1. The swing assembly 4 drives the swing turntable 42 through the swing motor 44 and then drives the swing plate 41 to swing back and forth around the central axis of the swing turntable 42, so that the grinding assembly 5 on the swing plate 41 comprehensively grinds the arc surface of the ball 3 of the ball valve to improve the grinding effect.

[0037] The grinding assembly 5 includes a grinding frame 51 and a grinding structure 52 matched with the grinding frame 51. A lifting slot 511 is provided on the grinding frame 51. A lifting slider 512 slidably connected to the lifting slot 511 is provided in the lifting slot 511. The lifting slider 512 and the grinding structure 52 are connected to each other. A grinding fixing plate 513 fixedly connected to the grinding frame 51 is provided at the upper end. A lifting electric cylinder 53 fixedly connected to the grinding fixing plate 513 is provided at the upper end. The piston rod of the lifting electric cylinder 53 passes through the grinding fixing plate 513, and the piston rod of the lifting electric cylinder 53 and the lifting slider 512 are fixedly connected to each other. The lifting electric cylinder 53 and the lifting slider 512 cooperate with each other, so that the grinding structure 52 can adapt to ball valve balls 3 of different specifications and sizes.

[0038] A limit plate 411 fixedly connected to the end of the swing plate 41 is provided, and a telescopic motor 412 fixedly connected to the limit plate 411 is provided, the rotating shaft of the telescopic motor 412 passes through the limit plate 411, and the rotating shaft of the telescopic motor 412 is fixedly connected to a telescopic screw rod 413, the telescopic screw rod 413 passes through the lower end of the grinding frame 51 and is movably connected to each other by a threaded manner, and a guide protrusion 414 matched with the lower end of the grinding frame 51 is also provided on the swing plate 41, and a guide groove matched with the guide protrusion 414 is provided at the lower end of the grinding frame 51, and the telescopic motor 412 drives the grinding frame 51 to slide left and right along the guide protrusion 414 so that the grinding structure 52 on the grinding frame 51 can adapt to ball valve balls 3 of different specifications and sizes, thereby greatly improving the adaptability of the grinding device.

[0039] The working process is as follows: first, fix the ball 3 of the ball valve to be ground on the ball support structure 21, and then install the ball support structure 21 on the ball fixing seat 22, then adjust the telescopic motor 412 and the lifting electric cylinder 53 to make the grinding structure 52 close to the surface of the ball valve ball 3, then the ball motor 224 works to drive the ball valve ball 3 to rotate continuously, and the swing motor 44 works to make the grinding structure 52 move back and forth in contact with the surface of the ball valve ball 3, so as to comprehensively grind the surface of the ball valve ball 3.

[0040] Embodiment 2, this embodiment is based on embodiment 1, as Fig. 9As shown, a grinding motor 54 compatible with the grinding structure 52 is provided on the lifting slider 512, the rotating shaft of the grinding motor 54 passes through the grinding frame 51, and a grinding driving wheel 541 is fixedly connected to the rotating shaft of the grinding motor 54. A grinding connecting rod 521 fixedly connected thereto is provided on the grinding structure 52, the grinding connecting rod 521 passes through the grinding frame 51 and a grinding driven wheel 522 is fixedly connected to the grinding connecting rod 521, a grinding driving wheel 541 and a grinding driven wheel 522 are sleeved with a grinding transmission belt 542, the rotating shaft of the grinding motor 54 and the grinding connecting rod 521 are movably connected to the grinding frame 51 by setting a grinding bearing, and the grinding motor 54 drives the grinding structure 52 to rotate, thereby improving the grinding efficiency of the grinding structure 52 on the surface of the ball 3 of the ball valve.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A swing type ball grinding device, comprising a grinding table (1) and a ball support assembly (2) located on the grinding table (1), wherein the ball support assembly (2) is provided with a ball valve ball (3) adapted thereto, characterized in that: The grinding table (1) is also provided with a swing assembly (4) adapted to the ball valve body (3), and grinding assemblies (5) adapted to the ball valve body (3) are provided on both the left and right sides of the swing assembly (4). The swing assembly (4) comprises a swing plate (41) and a swing turntable (42) fixedly connected to the lower side of the swing plate (41), and a swing bearing plate (43) adapted to the swing turntable (42) is sleeved on the outer side of the swing turntable (42). The swing assembly (4) is also provided with a swing motor (44) located at the lower side of the grinding table (1), and the rotating shaft of the swing motor (44) passes through the grinding table (1) and is fixedly connected to the swing turntable (42). The lower side of the grinding table (1) is also provided with a swing support frame adapted to the swing motor (44). (45), the grinding assembly (5) includes a grinding frame (51) and a grinding structure (52) matched with the grinding frame (51), a lifting slot (511) is provided on the grinding frame (51), a lifting slider (512) slidably connected to the lifting slot (511) is provided in the lifting slot (511), the lifting slider (512) and the grinding structure (52) are connected to each other, a grinding fixing plate (513) fixedly connected to the grinding frame (51) is provided at the upper end, a lifting electric cylinder (53) fixedly connected to the grinding fixing plate (513) is provided at the upper end, the piston rod of the lifting electric cylinder (53) passes through the grinding fixing plate (513), and the piston rod of the lifting electric cylinder (53) and the lifting slider (512) are fixedly connected to each other.

2. The swing type ball grinding device according to claim 1, characterized in that: The ball support assembly (2) comprises a ball support structure (21) inserted into the ball of the ball valve (3); the front and rear ends of the ball support structure (21) are provided with ball fixing seats (22) detachably connected thereto; a rotating rod (221) is inserted into the ball fixing seat (22); a supporting bearing (222) is further provided between the rotating rod (221) and the ball fixing seat (22); a clamping structure (23) matched with the ball support structure (21) is provided at the end of the rotating rod (221); a motor fixing seat (223) is provided on the ball fixing seat (22) on one side of the ball support structure (21); a ball motor (224) matched with the ball motor (223) is fixedly connected to the motor fixing seat (223); and a rotating shaft of the ball motor (224) and the rotating rod (221) are fixedly connected to each other.

3. The swing type ball grinding device according to claim 2, characterized in that: The clamping structure (23) comprises an upper clamping block (231) and a lower clamping block (232) which are matched with each other. The upper clamping block (231) and the lower clamping block (232) are both provided with clamping grooves which are matched with the spherical support structure (21). One ends of the upper clamping block (231) and the lower clamping block (232) are hingedly connected to each other, and the other ends are clamped and connected to each other by means of a movable bolt (233). The lower clamping block (232) and the rotating rod (221) are fixedly connected to each other.

4. The swing type ball grinding device according to claim 3, characterized in that: The spherical support structure (21) comprises a support rod (211) and a plurality of support plates (212) distributed around the circumference of the support rod (211); a rubber pad fixedly connected to the support plate (212) is arranged on the outer surface of the support plate (212); a support sleeve (213) is slidably connected to the front and rear sides of the support rod (211); a plurality of connecting rods (214) evenly distributed along the circumference of the support sleeve (213); the connecting rods (214) and the support plate (212) are movably connected to each other; a limiting sleeve (215) matched with the supporting sleeve (213) is also arranged at one end of the outer side of the supporting sleeve (213); the limiting sleeve (215) and the supporting sleeve (213) are slidably connected to each other. The sleeve (213) is provided with a limiting protrusion (2151) and a sliding protrusion (2131) respectively. The limiting protrusion (2151) and the sliding protrusion (2131) are arranged alternately with each other, and both the limiting protrusion (2151) and the sliding protrusion (2131) are provided with external threaded parts with equal thread pitches, and the external threaded parts are sleeved with a locking nut (216) threadedly connected thereto. Limiting steps fixedly connected to the limiting sleeve (215) are provided at both ends of the support rod (211), and a clamping part (2111) adapted to the clamping structure (23) is also provided on the limiting step, and the clamping part (2111) is arranged in a regular polygonal structure.

5. The swing type ball grinding device according to claim 4, characterized in that: The end of the swing plate (41) is provided with a limit plate (411) fixedly connected thereto, the limit plate (411) is provided with a telescopic motor (412) fixedly connected thereto, the rotating shaft of the telescopic motor (412) passes through the limit plate (411), and the rotating shaft of the telescopic motor (412) is fixedly connected with a telescopic screw rod (413), the telescopic screw rod (413) passes through the lower end of the grinding frame (51) and is movably connected to each other by means of a thread, the swing plate (41) is also provided with a guide protrusion (414) matched with the lower end of the grinding frame (51), and the lower end of the grinding frame (51) is provided with a guide groove matched with the guide protrusion (414).

6. A swing type ball grinding device according to any one of claims 1 to 5, characterized in that: The lifting slider (512) is provided with a grinding motor (54) adapted to the grinding structure (52); the rotating shaft of the grinding motor (54) passes through the grinding frame (51); a grinding driving wheel (541) is fixedly connected to the rotating shaft of the grinding motor (54); a grinding connecting rod (521) fixedly connected to the grinding structure (52) is provided; the grinding connecting rod (521) passes through the grinding frame (51) and a grinding driven wheel (522) is fixedly connected to the grinding connecting rod (521); a grinding driving wheel (541) and a grinding driven wheel (522) are sleeved with a grinding transmission belt (542); the rotating shaft of the grinding motor (54) and the grinding connecting rod (521) are movably connected to the grinding frame (51) by providing a grinding bearing.

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