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Processing Technology of Wedge Gate Valve Sealing Surface and Its Automatic Overlay Welding Equipment

A processing technology and sealing surface technology, applied in the field of wedge gate valve processing technology, can solve the problems of restricting gate processing efficiency and cumbersome operation, and achieve the effects of reducing dependence, improving processing efficiency, and improving efficiency

Active Publication Date: 2017-09-19
SHANGHAI BIAOYI VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned patents have developed a new ram fixture for the processing of the sealing surface on the wedge ram, but the ram must be fixed on the fixture when using this included angle, and the operation is cumbersome, which greatly restricts Ram processing efficiency

Method used

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  • Processing Technology of Wedge Gate Valve Sealing Surface and Its Automatic Overlay Welding Equipment
  • Processing Technology of Wedge Gate Valve Sealing Surface and Its Automatic Overlay Welding Equipment
  • Processing Technology of Wedge Gate Valve Sealing Surface and Its Automatic Overlay Welding Equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Step 1: Cast a gate blank 1 with annular wedge-shaped sealing surfaces on both sides. The slope angle of the wedge-shaped sealing surface is α, preferably 2°5′, and drill a center hole at the center of the wedge-shaped sealing surface 2;

[0041] Second step: one side of the gate blank 1 is fixed on the fixed seat 16 of the lathe 5 through the slope plate 6, and the central hole 2 is positioned and the gate blank 1 is fixed by the triangular claw 7. The slope plate 6 The slope angle is β, and β=2α. In this embodiment, it is 4°10′, and the turning tool is fixedly installed on the turning tool seat 8, and the positioning seat 9 of the lathe 5 is moved at the same time to align it with the center hole 2 of the gate valve;

[0042] Step 3: start the lathe 5, and turn the first wedge-shaped sealing surface with the tool, and turn the first vertical wedge-shaped sealing surface under the premise that the gate blank 1 is fixed on the lathe 5;

[0043]Step 4: Remove the gate ...

Embodiment 2

[0048] Step 1: Cast a gate blank 1 with annular wedge-shaped sealing surfaces on both sides. The slope angle of the wedge-shaped sealing surface is α, preferably 2°5′, and drill a center hole at the center of the wedge-shaped sealing surface 2. After that, perform heat treatment on the gate blank 1, the heat treatment includes annealing, normalizing, normalizing and tempering, wherein the tempering temperature is ≤550°C, so that the welding performance of the gate is better;

[0049] The second step: fix one side of the gate blank 1 on the lathe 5 through the slope plate 6, locate the center hole 2 and fix the gate blank 1 through the triangular claw 7, and the slope angle of the slope plate 6 is β, and β=2α. In this embodiment, it is 4°10';

[0050] Step 3: start the lathe 5, and turn the first wedge-shaped sealing surface with the tool, and turn the first vertical wedge-shaped sealing surface under the premise that the gate blank 1 is fixed on the lathe 5;

[0051] Step 4:...

Embodiment 3

[0055] Embodiment 3: An automatic surfacing welding machine for wedge-type ram sealing surface processing, a frame, a slope table 10 for placing the ram, and a positioning arm 11 for positioning the center hole of the ram, used for An automatic welding arm 12 for overlaying the flashboard, a console 13 for controlling the work of each part of the frame, and a display screen connected to the console 13 for displaying machine operating parameters. See attached figure 1 It can be seen that the slope plate 6 is provided with a clamping groove, and the triangular claw 7 is located in the clamping groove for telescopic adjustment. The central position of the slope plate 6 is provided with a positioning hole, and the eccentric position of the slope plate 6 is provided with a threaded hole for fixed screw connection with the lathe 5 . Also as attached to the manual Figure 4 As shown, the inclination workbench 10 includes a base plate 18, the side of the base plate 18 is hinged with...

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Abstract

The invention provides a wedge gate valve sealing face machining technology which comprises the flows of casting, sealing face turning, surfacing groove turning, locating hole turning, automatic locating, automatic surfacing and the like. The wedge gate valve machining technology is easy and convenient to operate and precise in machining. In addition, the invention discloses automatic surfacing equipment used in the wedge gate valve sealing face machining technology. The automatic surfacing equipment comprises a rack, a slope working table used for containing a gate board, a locating arm used for locating a center hole of the gate board, and an automatic welding arm used for carrying out surfacing on the gate board. A levelness detecting mechanism is installed on the locating arm. The automatic surfacing equipment for machining the gate board is efficient, high in precision and multifunctional.

Description

technical field [0001] The invention relates to a gate valve processing technology, in particular to a wedge gate valve processing technology. Background technique [0002] There is an opening and closing gate in the body of the wedge gate valve. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed. is 2°52'. To improve its manufacturability and make up for the deviation of the sealing surface angle during processing, this kind of gate is called elastic gate. [0003] When machining the sealing surface of the wedge gate valve, the accuracy and symmetry of the slope of the two sealing surfaces must be ensured. Its machining accuracy directly affects the sealing performance of the product. A Chinese invention patent with the patent number CN201110346152.3 discloses a The processing technology of the interchangeable ram and the sealing surface of the valve body is mainly: the processing tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23K37/047F16K3/314F16K3/12
CPCB23K37/047B23P15/001F16K3/12F16K3/314
Inventor 潘志利潘宁柱潘教理
Owner SHANGHAI BIAOYI VALVE
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