Synchronous machining device for valve body sealing surface and valve clack sealing surface of hard sealing gate valve

Abstract

The utility model discloses a synchronous machining device for a valve body sealing surface and a valve clack sealing surface of a hard sealing gate valve. The lower base is mounted in the center of the inner bottom of the rectangular rack; the valve clack clamp is mounted on the lower base and used for clamping a valve clack inside; the two valve clack grinding mechanisms are mounted on the two sides of the rectangular rack correspondingly, and grinding heads of the two valve clack grinding mechanisms face the valve clack; a valve body clamp; the upper base is mounted in the center of the inner top of the rectangular rack; the valve clack supporting block is mounted on the upper base and matched with the top of the valve clack; and a valve body grinding mechanism. The grinding device has the advantages that the valve seat sealing face and the valve plate sealing face of the hard sealing gate valve can be ground at high precision and high efficiency at the same time through the preset valve clack grinding mechanism and the valve body grinding mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machining, especially relates to a hard sealing gate valve body sealing surface and valve clack sealing surface synchronous processing device. BACKGROUND

[0002] The sealing part of the hard sealing valve has two, one is the valve body valve seat, two is the valve clack sealing ring, the copper sealing surface production process of the valve body valve seat of the ordinary hard sealing water supply and drainage gate valve is: slotting, copper sleeve, copper sleeve, rough turning, finish turning (DN300 below diameter) or copper welding, rough turning, finish turning (DN300 above diameter), the valve clack sealing surface production process is: copper welding, rough turning, finish turning.

[0003] For example, Chinese invention patent CN104191178A discloses a kind of hard sealing gate valve body processing method, including using prior art to prepare gate valve body blank;It further includes the processing steps of two sides sealing surface in hard sealing gate valve body: the blank of valve body is clamped using tooling fixture, and it is ensured that clamping is firm;Two sides sealing surface in valve body are simultaneously processed using sealing surface processing tool;Complete two sides sealing surface in valve body one-time processing operation, withdraw tool, take out valve body, enter next processing procedure.The application can only process two sides sealing surface of valve body simultaneously, cannot process valve body sealing surface and valve clack sealing surface simultaneously, and it is difficult to guarantee consistency of shape tolerance and dimensional tolerance of valve body sealing surface and valve clack sealing surface processed. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problems that the existing valve body sealing surface and valve clack sealing surface cannot be simultaneously processed using the same standard, leading to poor sealing effect, and provides a kind of hard sealing gate valve body sealing surface and valve clack sealing surface synchronous processing device.

[0005] The technical scheme of the utility model is: a hard sealing gate valve body sealing surface and valve clack sealing surface synchronous processing device, which comprises: a rectangular frame; a lower base which is installed at the inner bottom central part of the rectangular frame; a valve clack clamp which is installed on the lower base and is used for clamping the valve clack; two valve clack grinding mechanisms which are installed on the two sides of the rectangular frame and the grinding heads of which face the valve clack; a valve body clamp which is installed on the lower base and is used for clamping the valve body so that the middle through hole of the valve body faces upwards; an upper base which is installed at the inner top central part of the rectangular frame; a valve clack support block which is installed on the upper base and cooperates with the top of the valve clack; and a valve body grinding mechanism which is installed on the upper base, extends into the middle through hole of the valve body and the grinding head of which is aligned with the valve body sealing surface.

[0006] The two valve clack grinding mechanisms in the above scheme are driven by motors to rotate the grinding heads.

[0007] The valve body grinding mechanism in the above scheme is driven by a motor to rotate the grinding head.

[0008] The valve clack support block in the above scheme comprises a left support block and a right support block which surround the side edges of the valve clack, and the left support block and the right support block are attached to the side edges of the valve clack.

[0009] The valve body clamp in the above scheme comprises a bracket for fixing the valve body base, a left clamp plate and a right clamp plate for providing clamping force to the left flange and the right flange of the valve body.

[0010] The utility model has the advantages that the angle of the grinding head is fixed through the preset valve clack grinding mechanism and valve body grinding mechanism, the valve body and the valve clack are processed on the same equipment, the consistency of the grinding angle is ensured, and the valve seat sealing surface and the valve plate sealing surface of the hard sealing gate valve can be polished with high precision and high efficiency at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is the schematic diagram of the utility model;

[0012] Figure 2 is Figure 1 is the schematic diagram of the lower base;

[0013] Figure 3 is Figure 1 is the schematic diagram of the upper base;

[0014] Figure 4 is Figure 2 is the schematic diagram of the valve body clamp;

[0015] Figure 5 is Figure 3 is the schematic diagram of the valve body grinding mechanism;

[0016] In the figure, 1, rectangular frame, 2, lower base, 3, valve clamping fixture, 31, left support block, 32, right support block, 4, valve grinding mechanism, 5, valve body clamping fixture, 51, bracket, 52, left clamping plate, 53, right clamping plate, 6, upper base, 7, valve support block, 8, valve body grinding mechanism. DETAILED DESCRIPTION

[0017] The application is further described below in conjunction with the accompanying drawings.

[0018] As Figures 1-5 shown, a hard sealing gate valve body sealing surface and valve clamping fixture synchronous processing device, comprising: rectangular frame 1; lower base 2, the lower base is installed in the inner bottom of rectangular frame central; valve clamping fixture 3, the valve clamping fixture is installed on the lower base for clamping the valve inside; two valve grinding mechanism 4, two valve grinding mechanism is installed on both sides of the rectangular frame and the grinding head towards the valve; valve body clamping fixture 5, the valve body clamping fixture is installed on the lower base for clamping the valve inside so that the valve body hole upwards; upper base 6, the upper base is installed in the inner top of rectangular frame central; valve support block 7, the valve support block is installed on the upper base and with the valve top cooperation, valve support block through linear drive mechanism and the upper base is connected, through linear drive mechanism can adjust the distance between valve support block and valve top, linear drive mechanism can be linear motor or cylinder; valve body grinding mechanism 8, the valve body grinding mechanism is installed on the upper base and into the valve body hole and grinding head alignment valve sealing surface, valve body grinding mechanism through linear drive mechanism and the upper base is connected, linear drive mechanism can be linear motor or cylinder.

[0019] Two valve grinding head assembly of the mechanism are equipped with high precision servo motor, to realize the accurate speed and position control. Two said valve grinding mechanism by motor drive grinding head rotation, to ensure the synchronous grinding processing of both sides of the valve, similarly, said valve grinding mechanism by motor drive grinding head rotation, realize the accurate speed and position control, through linear drive mechanism can adjust the valve grinding mechanism into the valve or away from the valve.

[0020] The valve clamping fixture includes two left support block 31 and right support block 32, which surrounds the side of the valve, the left support block and right support block with the side of the valve, for example, the left support block and right support block form the arc shape matching with the valve side, so that the two valve to be processed surface of the valve is opposite to the grinding head of two valve grinding mechanism. More preferably, the left support block and right support block and the lower base are connected with each other in a sliding manner, so as to adjust the distance between the left support block and the right support block to adapt to the processing of valves with different sizes.

[0021] The valve body clamp comprises a bracket 51 for fixing the valve body base, a left clamping plate 52 and a right clamping plate 53 for giving clamping force to the left flange and the right flange of the valve body. The left clamping plate and the right clamping plate can be fixedly connected with the bracket or can be slidably connected with the bracket to adapt to clamping of valve bodies of different sizes.

[0022] Those skilled in the art shall know that the protection scheme of the present application is not limited to the above-mentioned embodiments, and various permutations, combinations and transformations can be made on the basis of the above-mentioned embodiments. Various transformations made to the present application without departing from the spirit of the present application all fall within the protection scope of the present application.

Claims

1. A device for synchronously processing the sealing surface of the valve body and the sealing surface of a hard-seal gate valve, characterized in that it comprises: Rectangular frame (1); lower base (2) installed in the center of the inner bottom of the rectangular frame; valve clamping fixture (3) installed on the lower base for clamping the valve inside; two valve grinding mechanisms (4) installed on both sides of the rectangular frame with the grinding head facing the valve; valve body clamping fixture (5) installed on the lower base for clamping the valve body inside so that the center hole of the valve body faces upward; upper base (6) installed in the center of the inner top of the rectangular frame; valve support block (7) installed on the upper base and matched with the top of the valve; valve body grinding mechanism (8) installed on the upper base and extending into the center hole of the valve body with the grinding head aligned with the sealing surface of the valve body.

2. A device for simultaneously machining a hard-seated gate valve body seal face and a hard-seated gate valve disc seal face as set forth in claim 1, characterized in that: The two valve grinding mechanisms are driven by motors to rotate the grinding head.

3. A device for simultaneously machining a hard-seated gate valve body seal face and a hard-seated gate valve disc seal face as set forth in claim 1, characterized in that: The valve body grinding mechanism is driven by a motor to rotate the grinding head.

4. A device for simultaneously machining a hard seated gate valve body seal face and a hard seated gate valve disc seal face as recited in claim 1 wherein: The valve clamping fixture includes a left support block (31) and a right support block (32) that surround the side edges of the valve.

5. A device for simultaneously machining a hard seated gate valve body seal face and a hard seated gate valve disc seal face as recited in claim 1 wherein: The valve body clamping fixture includes a bracket (51) for fixing the valve body base, a left clamping plate (52) and a right clamping plate (53) for providing clamping force to the left and right flanges of the valve body.

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