Device for locking, welding and centering round pipes
A centering device and round pipe technology, applied in auxiliary devices, welding equipment, auxiliary welding equipment, etc., can solve problems such as the influence of fixing in the pipeline, the slippage of the pipe wall and the elastic locking sleeve, and achieve the elimination of spot welding fixation, The effect of high positioning accuracy
Inactive Publication Date: 2012-11-28
ZHEJIANG UNIV
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Problems solved by technology
Chinese patent CN 201012445Y discloses a circular pipe welding locator, which uses an elastic locking sleeve to lock the inner wall of the circular pipe, but in the process of manual tightening, slipping between the pipe wall and the elastic locking sleeve is prone to occur Phenomenon, which affects the centering and fixing of the pipeline
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[0013] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.
[0014] like figure 1 , figure 2 As shown, the locking rod 5 of this embodiment is composed of several conical sections in the same direction, one end of which is threaded with a positioning handwheel 14, and the other end is a circumferential rib 20. The concentric sleeve 4 has external threads. , one end of which is installed with a round tube locker 13 through threads, and three through grooves 6 are evenly distributed in the circumferential direction corresponding to each conical section on the concentric sleeve 4 and the locking rod 5, and each through groove 6 is installed in the There are steel balls 2, the elastic locking sleeve 3 and the conical sections on the locking rod 5 are equal in number, the elastic locking sleeve 3 is axially fixed on the concentric sleeve 4 through the thread, and the elastic locking sleeve 3 has arc-shaped...
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The invention discloses a device for locking, welding and centering round pipes. A locking rod comprises a plurality of conical sections in the same direction; a positioning hand wheel is mounted at one end of the locking rod through threads; a circumferential flange is formed in the other end of the locking rod; external threads are formed in a concentric sleeve; a round pipe locking device is mounted at one end of the concentric sleeve through threads; at least three through grooves are uniformly distributed in the circumferential direction of the concentric sleeve corresponding to each conical section of the locking rod; a steel ball is mounted in each through groove; the number of elastic locking sleeves is the same as that of the conical sections of the locking rod; the elastic locking sleeves are axially fixed to the concentric sleeve through threads; arc-shaped outwardly projected elastic metal sheets are arranged on the elastic locking sleeves; the steel balls are against the elastic metal sheets of the elastic locking sleeves and the corresponding conical sections of the locking rod; and the elastic metal sheets are against the inner wall of the first round pipe and the inner wall of the second round pipe. According to the device, the round pipes are directly welded after being quickly positioned in a high-precision way without multi-time visual measurement and repeated adjustment, so that the step of fixing by point welding is removed, thereby saving time and labor.
Description
technical field [0001] The invention relates to a device for locating two sections of circular tubes, in particular to quickly positioning and centering two sections of circular tubes with the same diameter, so that the two sections of circular tubes can be welded conveniently. Background technique [0002] Various pipelines on the ship are likened to the "blood vessels" of the ship. As the main path of the ship's power transmission, it transports steam, gas, water and oil, etc., and plays a very important role in the ship. When a large number of pipelines are centered and welded, when two sections of circular pipes with different diameters are welded together, it is necessary to spatially position the two circular pipes to center the two circular pipes before welding. [0003] At present, most of the methods of spatial positioning before welding of two circular tubes are manual fixing methods. Although the alignment of the two round tubes can be achieved by manual fixing, ...
Claims
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Inventor 冷建兴叶延英黄豪彩陈倩清赵汉星蔡勇
Owner ZHEJIANG UNIV