Turning work fixture for large-caliber metal seal butterfly valve butterfly plate
A technology of metal sealing and tooling fixtures, applied in metal processing equipment, metal processing machine parts, manufacturing tools, etc., can solve problems such as deformation, achieve accurate positioning, improve labor efficiency, and reliable clamping effects
Pending Publication Date: 2018-02-23
LANZHOU HIGH PRESSURE VALVE
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The butterfly plate of large-diameter butterfly valve is generally cast or plate-welded, and it is easy to cause deformation when the clamping force is too large
Method used
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[0018] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0019] The invention provides a turning fixture for the butterfly plate of a large-diameter metal-sealed butterfly valve, see Figure 1-Figure 4 , including: positioning elements and clamping devices; specifically, see figure 1 with figure 2 , the positioning element includes a bottom plate 1, the center of the bottom plate 1 is provided with a hole; the bottom plate 1 is provided with a support ring 2, the upper end of the support ring 2 is provided with a positioning ring 3, and the rib plate 4 is arranged on the The connection between the bottom plate 1 and the support ring 2;
[0020] Specifically, the positioning element is used for positioning. The positioning element is welded by the bottom, 1, support ring 2, positioning rin...
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The invention discloses a turning work fixture for a large-caliber metal seal butterfly valve butterfly plate. The turning work fixture for the large-caliber metal seal butterfly valve butterfly platecomprises a positioning element and a clamping device. The positioning element is matched with the clamping device; the positioning element comprises a bottom plate; a hole is formed in the center ofthe bottom plate; a support ring is arranged on the bottom plate; a positioning ring is arranged on the upper end of the support ring; a rib plate is arranged on a connecting part of the bottom plateand the support ring; the clamping device comprises a first T-shaped slot bolt, a pre-load nut and a clamping core shaft; the first T-shaped slot bolt is connected with a machine tool table T-shapedslot in a matching way; and the clamping core shaft, the pre-load nut and the first T-shaped slot bolt are connected in a matching way through thread pairs. The turning work fixture for the large-caliber metal seal butterfly valve butterfly plate provided by the invention is accurate in positioning and reliable in clamping; and since the working allowance is not large, the butterfly plate cannot be shifted or vibrated during a processing process, so that the safety factor of processing is greatly improved.
Description
technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a turning fixture used for a butterfly plate of a large-diameter metal sealing butterfly valve. Background technique [0002] The butterfly valve has the advantages of simple structure, light weight, small space occupation, rapid opening and closing, small opening and closing power, reliable sealing performance, and long service life, so it has been widely used. With the continuous improvement of process parameters in various working conditions, the trend of butterfly valve development to medium and high pressure is becoming more and more obvious. The pressure difference of the coal chemical synthesis gas cut-off butterfly valve has reached 6.3MPa, and the metal seal butterfly valve of Class 600 is generally used, and it is required to achieve bubble-level sealing. Therefore, the large-diameter metal-sealed butterfly valve has been one of the subjects that our comp...
Claims
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IPC IPC(8): B23Q3/06
CPCB23Q3/06
Inventor 蒋亚琴郝宏达邵学军李淑敏李鹏飞闫兴虎
Owner LANZHOU HIGH PRESSURE VALVE