Valve ball lip polishing device

Abstract

The utility model relates to a valve ball lip polishing device which comprises a machining table, an installation frame is fixedly connected to the machining table, and a polishing mechanism moving up and down is installed on the installation frame. Rotating frames are installed on the mounting frame in a bilateral symmetry mode, clamping assemblies are arranged on the rotating frames, and rotating mechanisms used for driving the clamping assemblies to rotate are installed on the mounting frame in a bilateral symmetry mode; a positioning mechanism is mounted on the machining table, after a lip on one side of the valve ball is polished, the arc-shaped clamp is driven by the rack and the gear to clamp the valve ball and turn over by 180 degrees, so that the lip on one side which is not polished is turned over to the upper side, and the edge of the lip is conveniently polished by the special-shaped grinding wheel; operators do not need to turn over the valve ball manually, the grinding operation is automatically conducted through the special-shaped grinding wheel in the whole process, and the grinding efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to a valve, in particular to a valve ball lip grinding device. Background Art

[0002] The lip of the valve ball refers to the part of the ball surface that contacts the valve seat, usually an annular edge area. In order to ensure the sealing of the valve, improve the reliability of valve operation and extend the service life of the valve, the lip part of the valve ball needs to be polished during the production process of the valve ball.

[0003] The existing method for grinding the lip of a valve ball usually uses a clamping device to fix the valve ball, and the operator uses a handheld grinder to grind the lip of the valve ball. When grinding a valve ball with multiple lips, the operator needs to rotate the valve ball after grinding one of the lips to expose the unground lip for processing. This processing method has low grinding efficiency. To address this problem, we propose a valve ball lip grinding device. Utility Model Content

[0004] The utility model provides a valve ball lip grinding device, which solves the above problems existing in the use process of the prior art.

[0005] The technical solution of the utility model is achieved as follows: a valve ball lip grinding device includes a processing table, a mounting frame is fixedly connected to the processing table, and a grinding mechanism that moves up and down is installed on the mounting frame;

[0006] A rotating frame is symmetrically mounted on the mounting frame, a clamping assembly is provided on the rotating frame, and a rotating mechanism for driving the clamping assembly to rotate is symmetrically mounted on the mounting frame.

[0007] A positioning mechanism is installed on the processing table.

[0008] The present utility model is further configured as follows: the clamping assembly includes an arc-shaped clamp;

[0009] A mounting seat is rotatably connected in the rotating frame, a No. 1 cylinder is installed on the mounting seat, and the arc-shaped clamp is fixedly connected to the end of the piston rod of the No. 1 cylinder.

[0010] The present utility model is further configured as follows: the rotating mechanism includes a rack;

[0011] A horizontal seat is installed on the mounting frame, an electric cylinder is installed on the horizontal seat, the rack is fixedly connected to the end of the screw of the electric cylinder, and a gear is rotatably connected to the mounting seat, and the gear is meshed with the rack.

[0012] The further setting of the utility model is that the mounting frame is fixedly connected with a No. 2 air cylinder, the No. 2 air cylinder is provided with a connecting plate at the tail end, the connecting plate is provided with a mounting plate below, and the polishing mechanism is mounted on the mounting plate.

[0013] The connecting plate and the mounting plate are provided with a buffer mechanism.

[0014] The further setting of the utility model is that the polishing mechanism comprises a special-shaped grinding wheel.

[0015] The mounting plate is provided with a motor, and the special-shaped grinding wheel is fixedly connected to the output shaft tail end of the motor.

[0016] The further setting of the utility model is that the buffer mechanism comprises a spring, and the spring is connected between the connecting plate and the mounting plate.

[0017] The lower side of the connecting plate is fixedly connected with a plurality of telescopic sleeve rods, and the upper side of the mounting plate is fixedly connected with a plurality of slide rods which are slidably connected in the telescopic sleeve rods.

[0018] The further setting of the utility model is that the positioning mechanism comprises a positioning column.

[0019] The processing table is fixedly connected with a base, the base is fixedly connected with a telescopic air bag, the upper end of the telescopic air bag is fixedly connected with a positioning table, the positioning table is provided with a groove, and the positioning column is fixedly arranged in the groove.

[0020] The processing table is provided with a lifting assembly for driving the positioning table to move up and down.

[0021] The further setting of the utility model is that the lifting assembly comprises a No. 3 air cylinder, and the No. 3 air cylinder is symmetrically mounted on the processing table.

[0022] The positioning table is symmetrically connected with an extension plate on the left and right, and the piston rod tail end of the No. 3 air cylinder is fixedly connected to the extension plate.

[0023] The further setting of the utility model is that the positioning column is a hollow structure and is communicated with the telescopic air bag.

[0024] The utility model has the advantages of the following:

[0025] When the lip on one side of the valve ball is polished, the arc-shaped clamp clamps the valve ball and turns over by 180 degrees under the driving of the rack and pinion, so that the unpolished lip is turned to the upper side, so that the special-shaped grinding wheel polishes the edge, the operator does not need to manually turn over the valve ball, the polishing operation is automatically performed by the special-shaped grinding wheel, and the polishing efficiency is improved.

[0026] The positioning column can ensure that the lip of the valve ball is vertically upwardly aligned with the profiled grinding wheel after the arc-shaped clamp fixes the valve ball, so as to ensure the polishing precision of the lip. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0029] Figure 2 It is a schematic diagram of the local enlargement of A in the present application;

[0030] Figure 3 It is a schematic diagram of the local enlargement of B in the present application.

[0031] In the drawing, 11 is a machining table, 12 is a mounting frame, 13 is a rotating frame, 14 is an arc-shaped clamp, 15 is a mounting seat, 16 is a No. 1 air cylinder, 17 is a rack, 18 is a cross seat, 19 is an electric cylinder, 20 is a gear, 21 is a No. 2 air cylinder, 22 is a connecting plate, 23 is a mounting plate, 24 is a profiled grinding wheel, 25 is a motor, 26 is a spring, 27 is an extension sleeve rod, 28 is a sliding rod, 29 is a positioning column, 30 is a base, 31 is an extension air bag, 32 is a positioning table, 33 is a groove, 34 is an extension plate, and 35 is a No. 3 air cylinder. DETAILED DESCRIPTION

[0032] The drawings needed to be used in the embodiments of the present application will be combined below. Figure 1-3 The technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0033] Embodiment:

[0034] For example, Figures 1 to 3As shown, a valve ball lip grinding device includes a processing table 11, a mounting frame 12 is fixedly connected to the processing table 11, a rotating frame 13 is symmetrically installed on the mounting frame 12, a mounting seat 15 is rotatably connected inside the rotating frame 13, a No. 1 cylinder 16 is installed on the mounting seat 15, and the end of the piston rod of the No. 1 cylinder 16 is fixedly connected to an arc clamp 14 for clamping the valve ball.

[0035] The processing table 11 is fixedly connected to a base 30, and a positioning platform 32 is provided above the base 30. A groove 33 is formed on the positioning platform 32, and a positioning column 29 is fixed in the groove 33. The diameter of the positioning column 29 is the same as the diameter of the lip. A telescopic airbag 31 that can be extended and deformed up and down is provided between the base 30 and the positioning platform 32, and the interior of the telescopic airbag 31 is connected to the atmosphere.

[0036] In addition, two No. 3 cylinders 35 are installed on the processing table 11, and the two No. 3 cylinders 35 are symmetrically distributed on the left and right sides of the base 30. Extension plates 34 are symmetrically arranged on the positioning table 32, and the ends of the piston rods of the No. 3 cylinders 35 are fixedly connected to the extension plates 34.

[0037] Before starting the grinding process, the operator first aligns the lip with the positioning column 29 and places it in the groove 33, and inserts the positioning column 29 into the valve ball through the lip, thereby positioning the lip for subsequent grinding operations. Subsequently, the positioning platform 32 moves upward to a certain height under the drive of the No. 3 cylinder 35, and the two arc clamps 14 move toward each other and clamp the valve ball, thereby fixing the valve ball. Subsequently, the positioning platform 32 moves downward and the positioning column 29 is no longer inserted into the valve ball.

[0038] On the basis of Example 1, Example 2 is further proposed: the positioning column 29 has a hollow structure and is connected to the telescopic airbag 31. When the No. 3 cylinder 35 drives the positioning platform 32 to move downward and squeezes the telescopic airbag 31, the air in the telescopic airbag 31 is squeezed and ejected upward through the positioning column 29, thereby blowing off the grinding debris attached to the inner wall of the valve ball to ensure that the internal environment of the valve ball is clean.

[0039] The mounting frame 12 is fixedly connected to the No. 2 cylinder 21, and a connecting plate 22 is installed at the end of the No. 2 cylinder 21. A mounting plate 23 is provided below the connecting plate 22. A motor 25 is installed on the mounting plate 23. The end of the output shaft of the motor 25 is fixedly connected to a special-shaped grinding wheel 24, and the outer diameter of the special-shaped grinding wheel is equal to the diameter of the lip.

[0040] After the operator fixes the valve ball with the arc-shaped clamp 14, the profiled grinding wheel 24 moves downward to the lip and grinds the lip edge, in order to ensure the grinding precision of the profiled grinding wheel 24 on the valve ball lip, a plurality of telescopic sleeve rods 27 are fixedly connected to the lower side of the connecting plate 22, a plurality of slide rods 28 that are slidably connected in the telescopic sleeve rods 27 are fixedly connected to the upper side of the mounting plate 23, and the connecting plate 22 is connected with the mounting plate 23 through the spring 26.

[0041] Through the above structure, the profiled grinding wheel 24 can automatically adjust the grinding strength when contacting with the lip edge, so as to improve the grinding precision of the lip.

[0042] The horizontal seat 18 is symmetrically installed on the mounting frame 12, the electric cylinder 19 is installed on the horizontal seat 18, the screw rod end of the electric cylinder 19 is fixedly connected with the rack 17, the rack 17 is driven by the electric cylinder 19 to move forward and backward, the gear 20 is rotatably connected to the mounting seat 15, and the gear 20 is engaged with the rack 17.

[0043] When the lip on one side of the valve ball is ground, the profiled grinding wheel 24 moves upward first, the rack 17 moves forward and backward, so as to drive the gear 20 to rotate, the valve ball rotates with the arc-shaped clamp 14 by 180° of the horizontal seat 18, so that the ungrounded lip is aligned with the profiled grinding wheel 24, so that the profiled grinding wheel 24 can be used for subsequent grinding operation, and the operation is convenient without manual adjustment of the valve ball by the operator.

[0044] Meanwhile, it should be pointed out that the terms such as "front", "rear", "vertical", "horizontal" and the like indicated in the utility model 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 utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the utility model.

[0045] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A valve ball lip polishing device, comprising a processing table (11), characterized in that: A mounting frame (12) is fixedly connected to the processing table (11), and a grinding mechanism that moves up and down is installed on the mounting frame (12); A rotating frame (13) is symmetrically mounted on the mounting frame (12), a clamping assembly is provided on the rotating frame (13), and a rotating mechanism for driving the clamping assembly to rotate is symmetrically mounted on the mounting frame (12); A positioning mechanism is installed on the processing table (11).

2. A valve ball lip polishing device according to claim 1, characterized in that: The clamping assembly includes an arc-shaped clamp (14); A mounting seat (15) is rotatably connected in the rotating frame (13), a No. 1 cylinder (16) is mounted on the mounting seat (15), and the arc-shaped clamp (14) is fixedly connected to the end of the piston rod of the No. 1 cylinder (16).

3. A valve ball lip polishing device according to claim 2, characterized in that: The rotating mechanism includes a rack (17); A cross seat (18) is mounted on the mounting frame (12), an electric cylinder (19) is mounted on the cross seat (18), the rack (17) is fixedly connected to the end of the screw of the electric cylinder (19), and a gear (20) is rotatably connected to the mounting seat (15), and the gear (20) is meshed with the rack (17).

4. A valve ball lip polishing device according to claim 1, characterized in that: A No. 2 cylinder (21) is fixedly connected to the mounting frame (12), a connecting plate (22) is installed at the end of the No. 2 cylinder (21), a mounting plate (23) is provided below the connecting plate (22), and the grinding mechanism is installed on the mounting plate (23); A buffer mechanism is provided between the connecting plate (22) and the mounting plate (23).

5. A valve ball lip polishing device according to claim 4, characterized in that: The grinding mechanism includes a special-shaped grinding wheel (24); A motor (25) is mounted on the mounting plate (23), and the special-shaped grinding wheel (24) is fixedly connected to the end of the output shaft of the motor (25).

6. A valve ball lip polishing device according to claim 4, characterized in that: The buffer mechanism includes a spring (26), and the spring (26) is connected between the connecting plate (22) and the mounting plate (23); A plurality of telescopic sleeve rods (27) are fixedly connected to the lower side of the connecting plate (22), and a plurality of sliding rods (28) that are slidably connected to the inner portion of the telescopic sleeve rods (27) are fixedly connected to the upper side of the mounting plate (23).

7. The valve ball lip polishing device according to claim 1, characterized in that: The positioning mechanism includes a positioning column (29); The processing table (11) is fixedly connected to a base (30), a telescopic airbag (31) is fixedly connected to the base (30), an upper end of the telescopic airbag (31) is fixedly connected to a positioning table (32), a groove (33) is provided on the positioning table (32), and the positioning column (29) is fixedly arranged in the groove (33); The processing table (11) is provided with a lifting component for driving the positioning table (32) to move up and down.

8. A valve ball lip polishing device according to claim 7, characterized in that: The lifting assembly includes a No. 3 cylinder (35), and the No. 3 cylinder (35) is installed on the processing table (11) in a bilaterally symmetrical manner; An extension plate (34) is symmetrically connected to the positioning platform (32), and the end of the piston rod of the No. 3 cylinder (35) is fixedly connected to the extension plate (34).

9. The valve ball lip polishing device according to claim 7, characterized in that: The positioning column (29) has a hollow structure and is connected to the telescopic airbag (31).

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