Ball surface grinding equipment for ball valve machining

Abstract

The utility model provides a ball surface polishing device for ball valve processing, which comprises a base and a sand blasting polisher, the sand blasting polisher is fixedly connected to the top of the base, both sides of the top of the base are fixedly connected with bearing plates, and a mounting plate is fixedly connected between the tops of the two bearing plates. Compared with the prior art, the device has the advantages that a to-be-machined ball is placed at the bottom of a rubber ring in the negative pressure adsorption assembly, the top of the ball is embedded into the rubber ring to be attached, a motor in the driving assembly is started to drive a sealing rubber block to move upwards, then air in a connecting cylinder and air in a suction cup can be sequentially extracted, and the sealing rubber block is driven to move upwards. And the ball body is adsorbed and fixed through air negative pressure, the phenomenon that the fixing force is reduced due to the fact that the surface of the ball body is smooth is avoided, and the surface grinding machining stability of the ball body for ball valve machining is effectively improved.

Description

Technical Field

[0001] The utility model relates to a ball surface grinding device for ball valve processing, belonging to the field of ball valve processing equipment. Background Art

[0002] Ball valve processing is used for ball surface grinding and polishing. It refers to the process steps and equipment settings for grinding and polishing the ball surface when processing the ball valve. The ball valve is a commonly used valve. The closing element inside is a sphere, which controls the flow of fluid by rotation. In order to improve the sealing performance of the valve and the flow efficiency of the fluid, the surface of the ball needs to be ground and polished.

[0003] The surface of the sphere is initially polished by using a grinding wheel or a sandblasting machine to remove most of the roughness and unevenness. The sphere needs to be fixed before polishing. First, polish half of the sphere, then turn the sphere over to fix it, and polish the other half of the sphere. The direct friction between the polished sphere surface and the fixture is reduced. The sphere will be subjected to external force during the polishing process, which makes the sphere not firmly fixed, causing the sphere to fall off during the polishing process, thereby reducing the processing stability of the sphere in the ball valve.

[0004] In summary, the utility model provides a ball surface grinding device for ball valve processing to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a ball surface grinding device for ball valve processing, so as to solve the problem of poor stability of ball surface grinding processing mentioned in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a ball surface grinding device for ball valve processing, comprising a base and a sandblasting grinder, the sandblasting grinder is fixedly connected to the top of the base, both sides of the top of the base are fixedly connected with a load-bearing plate, a mounting plate is fixedly connected between the tops of the two load-bearing plates, four electric lifting rods are fixedly connected to the bottom of the mounting plate, a lifting plate is fixedly connected between the output ends of the four electric lifting rods, both sides of the bottom of the lifting plate are fixedly connected with a connecting plate, the opposite sides of the two connecting plates are fixedly connected with an electric push rod, the opposite ends of the two electric push rods are fixedly connected with a clamping plate, a sphere is clamped between the opposite sides of the two clamping plates, a mounting frame passes through the top and bottom of the lifting plate, a negative pressure adsorption component passes through the top and bottom of the mounting frame and located at the top of the sphere, both sides of the top of the mounting frame are fixedly connected with a fixing plate, a support plate is fixedly connected between the tops of the two fixing plates, and a driving component is fixedly connected to the top of the support plate.

[0007] Furthermore, the negative pressure adsorption assembly includes an air suction cylinder and a rotating cylinder, the air suction cylinder passes through the top of the mounting frame, the rotating cylinder passes through between the top and the bottom of the support plate and is located directly above the air suction cylinder, the bottom end of the air suction cylinder is sleeved with a connecting cylinder, the bottom end of the connecting cylinder passes through the mounting frame and extends to the bottom of the mounting frame, the bottom end of the connecting cylinder is connected to a suction cup, the bottom of the suction cup is sleeved with a rubber ring, the interior of the air suction cylinder is slidably connected to a sealing rubber block, the bottom of the sealing rubber block is embedded with a connecting rod, the top end of the connecting rod passes through the sealing rubber block and extends to the top of the sealing rubber block, the top end of the connecting rod is fixedly connected to a lead screw, one end of the lead screw passes through the air suction cylinder and the rotating cylinder in turn and extends to the top of the rotating cylinder, the outside of the rotating cylinder and is sleeved with a driven wheel directly above the support plate, and the top end of the lead screw is fixedly connected to a limiting block.

[0008] Furthermore, the vacuum cylinder is fixedly connected to the mounting frame, and the connecting cylinder is fixedly connected to the mounting frame.

[0009] Furthermore, the lead screw is in contact with the vacuum cylinder, and the lead screw is threadedly connected to the rotating cylinder.

[0010] Furthermore, the rotating drum is rotatably connected to the support plate, and the limiting block has a limiting effect on the lead screw.

[0011] Furthermore, the driving assembly includes a chassis, which is fixedly connected to one side of the top of the support plate, and a motor is fixedly connected to the inside of the chassis. The output end of the motor is fixedly connected to a driving shaft, one end of the driving shaft passes through the chassis and extends to above the driven wheel inside the negative pressure adsorption assembly, and the driving wheel is sleeved on the axial surface of the driving shaft and located on the top of the driven wheel.

[0012] Furthermore, the driving wheel is meshed with the driven wheel, and the chassis is rotationally connected to the driving shaft.

[0013] Furthermore, the driving wheel is fixedly connected to the driving shaft, and the driven wheel and the driving wheel are both bevel gears.

[0014] Beneficial effects of the utility model:

[0015] By placing the sphere to be processed at the bottom of the rubber ring inside the negative pressure adsorption component, the top of the sphere is embedded in the inside of the rubber ring for fitting, and the motor inside the driving component is started to drive the sealing rubber block to move upward, and then the air inside the connecting tube and the suction cup can be extracted in turn, so that the negative pressure can be used to quickly adsorb the sphere. The sphere is fixed by air negative pressure adsorption, and the phenomenon of the sphere surface being smooth and causing the fixing force to decrease will not occur, which effectively improves the stability of the sphere surface grinding processing used for ball valve processing.

[0016] The ball is fixed simultaneously by the negative pressure adsorption component and two clamps, which is a double fixation. This can better resist the impact force generated during the grinding process of the ball, reduce the phenomenon of the ball falling, and effectively improve the ball processing efficiency inside the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 This is a schematic structural stereogram of a ball surface grinding device for ball valve processing according to the utility model;

[0019] Figure 2 This is a schematic front view of the structure of a ball surface grinding device for ball valve processing according to the utility model;

[0020] Figure 3 for Figure 2 The schematic front view of the structure of the negative pressure adsorption component shown;

[0021] Figure 4 for Figure 2 The schematic main cross-sectional view of the structure of the negative pressure adsorption component shown;

[0022] Figure 5 for Figure 5 The structure of the suction cup shown is schematically shown from below;

[0023] Figure 6 for Figure 5 The structure of the sealing rubber block shown is a schematic main cross-sectional view.

[0024] In the figure: 1. base; 2. load-bearing plate; 3. sandblasting machine; 4. mounting plate; 5. electric lifting rod; 6. lifting plate; 7. connecting plate; 8. negative pressure adsorption component; 9. driving component; 10. electric push rod; 11. clamping plate; 12. sphere; 13. support plate; 14. fixing plate; 15. mounting frame; 81. vacuum cylinder; 82. rotating cylinder; 83. lead screw; 84. connecting rod; 85. sealing rubber block; 86. connecting cylinder; 87. suction cup; 88. rubber ring; 89. driven wheel; 810. limit block; 91. chassis; 92. motor; 93. driving shaft; 94. driving wheel. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] See also Figure 1-6The utility model provides a technical solution: a ball surface grinding device for ball valve processing, comprising a base 1 and a sandblasting grinder 3, the sandblasting grinder 3 is fixedly connected to the top of the base 1, the two sides of the top of the base 1 are fixedly connected with a load-bearing plate 2, a mounting plate 4 is fixedly connected between the tops of the two load-bearing plates 2, four electric lifting rods 5 are fixedly connected to the bottom of the mounting plate 4, the four electric lifting rods 5 are connected to an external power supply and are provided with a same power control switch, a lifting plate 6 is fixedly connected between the output ends of the four electric lifting rods 5, a connecting plate 7 is fixedly connected to both sides of the bottom of the lifting plate 6, an electric push rod 10 is fixedly connected to the opposite side of the two connecting plates 7, the two electric push rods 10 are connected to the external power supply and are provided with a same power control switch, the opposite ends of the two electric push rods 10 are fixedly connected with a clamping plate 11, and the two clamping plates 11 are both arc-shaped plates, Thereby, the sphere 12 can be quickly clamped and fixed. The sphere 12 is clamped between the opposite sides of the two clamping plates 11. A mounting frame 15 runs through the top and bottom of the lifting plate 6. A negative pressure adsorption component 8 runs through the top and bottom of the mounting frame 15 and is located on the top of the sphere 12. Both sides of the top of the mounting frame 15 are fixedly connected with fixing plates 14. A support plate 13 is fixedly connected between the tops of the two fixing plates 14. A driving component 9 is fixedly connected to the top of the support plate 13. The sandblasting grinder 3 uses compressed air in a pipeline to transport powdered particles (diameter 1 to 4 mm) from one place to another. In the process of converting kinetic energy into potential energy, the high-speed moving sand particles flush the surface of the object, thereby improving the surface quality of the object. A processing window is provided on the top of the sandblasting grinder 3 to accommodate the entry of the sphere, so that the hemispherical surface of the sphere can be polished.

[0027] See also Figure 3-6The negative pressure adsorption component 8 includes a vacuum cylinder 81 and a rotating cylinder 82. The vacuum cylinder 81 passes through the top of the mounting frame 15, and the rotating cylinder 82 passes through the top and bottom of the support plate 13 and is located directly above the vacuum cylinder 81. The bottom end of the vacuum cylinder 81 is sleeved with a connecting cylinder 86. The bottom end of the connecting cylinder 86 passes through the mounting frame 15 and extends to the bottom of the mounting frame 15. An air inlet is opened at the bottom end of the vacuum cylinder 81. The vacuum cylinder 81 is connected to the connecting cylinder 86 through the air inlet. The bottom end of the connecting cylinder 86 is connected with a suction cup 87. The bottom of the suction cup 87 is sleeved with a rubber ring 88. The inner wall of the rubber ring 88 is arc-shaped, so that it can fit with the surface of the sphere. The interior of the vacuum cylinder 81 is slidably connected with a sealing rubber block 85. The sealing rubber block 85 A connecting rod 84 is embedded in the bottom, the top of the connecting rod 84 penetrates the sealing block 85 and extends to the top of the sealing block 85, the top of the connecting rod 84 is fixedly connected to a lead screw 83, one end of the lead screw 83 penetrates the vacuum cylinder 81 and the rotating cylinder 82 in sequence and extends to the top of the rotating cylinder 82, the outside of the rotating cylinder 82 and is sleeved with a driven wheel 89 directly above the support plate 13, the top of the lead screw 83 is fixedly connected to a limiting block 810, the vacuum cylinder 81 is fixedly connected to the mounting frame 15, the connecting cylinder 86 is fixedly connected to the mounting frame 15, the lead screw 83 is in contact with the vacuum cylinder 81, the lead screw 83 is threadedly connected to the rotating cylinder 82, the rotating cylinder 82 is rotatably connected to the support plate 13, and the limit block 810 has a limiting effect on the lead screw 83.

[0028] See also Figure 3-4 The driving assembly 9 includes a chassis 91, which is fixedly connected to one side of the top of the support plate 13. A motor 92 is fixedly connected inside the chassis 91. A driving shaft 93 is fixedly connected to the output end of the motor 92. One end of the driving shaft 93 passes through the chassis 91 and extends to the top of the driven wheel 89 inside the negative pressure adsorption assembly 8. A driving wheel 94 is sleeved on the axial surface of the driving shaft 93 and located on the top of the driven wheel 89. The motor 92 is connected to an external power supply and is provided with a power control switch. The motor 92 is a three-phase asynchronous motor, and the output end can be adjusted in forward and reverse rotation. The driving wheel 94 is meshed with the driven wheel 89. The chassis 91 is rotatably connected to the driving shaft 93, and the driving wheel 94 is fixedly connected to the driving shaft 93. The driven wheel 89 and the driving wheel 94 are both bevel gears. The sealing rubber block 85 has a limiting effect on the lead screw 83. When the rotating drum 82 rotates forward and reverse, the lead screw 83 can be driven to move up and down.

[0029] Specific implementation method: by placing the sphere to be processed at the bottom of the rubber ring 88 inside the negative pressure adsorption component 8, the top of the sphere is embedded in the inside of the rubber ring 88 for fitting, and the output end of the motor 92 inside the driving component 9 is started to rotate the switch clockwise, thereby driving the driving shaft 93 to rotate clockwise, and the driving shaft 93 drives the driving wheel 94 to rotate clockwise, and then the driven wheel 89 can drive the rotating drum 82 to rotate counterclockwise. Since the lead screw 83 is limited by the sealing rubber block 85 sliding inside the vacuum cylinder 81, when the rotating drum 82 rotates counterclockwise, the lead screw 83 can be driven to move upward, and then the sealing rubber block 85 can be driven to move upward through the connecting rod 84, and then the air inside the connecting cylinder 86 and the suction cup 87 can be extracted in turn, so that the sphere 12 can be quickly adsorbed by the negative pressure, and then the two electric push rods 10 are started, and the two splints 11 are pushed close to each other at the same time to reinforce and fix the sphere 12, and then the two electric push rods 10 are started. The two electric lifting rods 5 are moved to push the lifting plate 6 downward, thereby driving the mounting frame 15 to move downward, and the mounting frame 15 drives the sphere 12 to move downward through the negative pressure adsorption component 8 and the two clamping plates 11, and moves to the inside of the sandblasting grinder 3 through the processing window on the top of the sandblasting grinder 3, so that the hemispherical surface at the bottom of the sphere 12 can be sandblasted and polished, and the sphere 12 to be polished is doubly fixed by the negative pressure adsorption component 8 and the two clamping plates 11. The sphere is fixed by air negative pressure adsorption, and the phenomenon of the fixing force being reduced due to the smooth surface of the sphere 12 will not occur, which effectively improves the surface polishing stability of the sphere 12 used for ball valve processing. The sphere 12 is fixed by the negative pressure adsorption component 8 and the two clamping plates 11 at the same time, and the double fixation can better resist the impact force generated during the polishing process of the sphere 12, reduce the phenomenon of the sphere 12 falling, and effectively improve the processing efficiency of the sphere 12 inside the ball valve.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A ball surface grinding device for ball valve processing, comprising a base (1) and a sandblasting grinder (3), characterized in that: The sandblasting grinder (3) is fixedly connected to the top of the base (1); both sides of the top of the base (1) are fixedly connected with a load-bearing plate (2); a mounting plate (4) is fixedly connected between the tops of the two load-bearing plates (2); four electric lifting rods (5) are fixedly connected to the bottom of the mounting plate (4); a lifting plate (6) is fixedly connected between the output ends of the four electric lifting rods (5); both sides of the bottom of the lifting plate (6) are fixedly connected with a connecting plate (7); the opposite sides of the two connecting plates (7) are fixedly connected with an electric push rod (10); the two electric push rods (10) are fixedly connected to the bottom of the lifting plate (6); 0) are fixedly connected to a clamping plate (11) at one end thereof, a sphere (12) is sandwiched between the opposite sides of the two clamping plates (11), a mounting frame (15) is passed through between the top and bottom of the lifting plate (6), a negative pressure adsorption component (8) is passed through between the top and bottom of the mounting frame (15) and located on the top of the sphere (12), both sides of the top of the mounting frame (15) are fixedly connected to fixing plates (14), a support plate (13) is fixedly connected between the tops of the two fixing plates (14), and a driving component (9) is fixedly connected to the top of the support plate (13).

2. The ball surface grinding device for ball valve processing according to claim 1 is characterized in that: The negative pressure adsorption component (8) comprises an air suction cylinder (81) and a rotating cylinder (82), wherein the air suction cylinder (81) passes through the top of the mounting frame (15), and the rotating cylinder (82) passes through between the top and the bottom of the support plate (13) and is located directly above the air suction cylinder (81). The bottom end of the air suction cylinder (81) is sleeved with a connecting cylinder (86), and the bottom end of the connecting cylinder (86) passes through the mounting frame (15) and extends to the bottom of the mounting frame (15). The bottom end of the connecting cylinder (86) is connected to a suction cup (87), and the bottom of the suction cup (87) is sleeved with a rubber ring (88). The inner The bottom of the sealing rubber block (85) is slidably connected to the sealing rubber block (85), and a connecting rod (84) is embedded in the bottom of the sealing rubber block (85). The top end of the connecting rod (84) penetrates the sealing rubber block (85) and extends to the top of the sealing rubber block (85). The top end of the connecting rod (84) is fixedly connected to a lead screw (83). One end of the lead screw (83) penetrates the vacuum cylinder (81) and the rotating cylinder (82) in sequence and extends to the top of the rotating cylinder (82). A driven wheel (89) is sleeved on the outside of the rotating cylinder (82) and located directly above the support plate (13). The top end of the lead screw (83) is fixedly connected to a limiting block (810).

3. The ball surface grinding device for ball valve processing according to claim 2 is characterized in that: The vacuum cylinder (81) is fixedly connected to the mounting frame (15), and the connecting cylinder (86) is fixedly connected to the mounting frame (15).

4. The ball surface grinding device for ball valve processing according to claim 2 is characterized in that: The lead screw (83) is in contact with the vacuum cylinder (81), and the lead screw (83) is threadedly connected to the rotating cylinder (82).

5. The ball surface grinding device for ball valve processing according to claim 2 is characterized in that: The rotating drum (82) is rotatably connected to the support plate (13), and the limiting block (810) has a limiting effect on the lead screw (83).

6. The ball surface grinding device for ball valve processing according to claim 1 is characterized in that: The driving assembly (9) comprises a chassis (91), wherein the chassis (91) is fixedly connected to one side of the top of the support plate (13), a motor (92) is fixedly connected inside the chassis (91), an output end of the motor (92) is fixedly connected to a driving shaft (93), one end of the driving shaft (93) passes through the chassis (91) and extends to above the driven wheel (89) inside the negative pressure adsorption assembly (8), and a driving wheel (94) is sleeved on the axial surface of the driving shaft (93) and located on the top of the driven wheel (89).

7. The ball surface grinding device for ball valve processing according to claim 6 is characterized in that: The driving wheel (94) is meshed with the driven wheel (89), and the chassis (91) is rotationally connected to the driving shaft (93).

8. The ball surface grinding device for ball valve processing according to claim 6 is characterized in that: The driving wheel (94) is fixedly connected to the driving shaft (93), and the driven wheel (89) and the driving wheel (94) are both bevel gears.

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