Roundness correcting device
A round and cylindrical technology, which is applied in the field of stainless steel thin-walled weldment manufacturing equipment, can solve the problems of high price of roller straightening equipment and high requirements for workers' operation level, and achieve good rounding effect, low manufacturing cost and improved roundness. Effect
Pending Publication Date: 2020-11-03
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Problems solved by technology
[0005] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide a device for roundness, which aims to solve the problem that the existing roller straightening method requires a high level of operation for workers when correcting the roundness of thin-walled cylinders, and the related problems The technical problem that the price of roll leveling equipment is also high
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0029] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.
[0030] It should also be...
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The invention discloses a roundness correcting device. The device comprises a supporting base, a male die, a female die, a mounting base and a driving mechanism, the supporting base comprises a firstfixing plate, a second fixing plate and a bottom plate, the first fixing plate and the second fixing plate are perpendicularly connected to the two ends of the bottom plate correspondingly and definea U-shaped groove with the bottom plate, and the male die, the female die, the mounting base and the driving mechanism are all located in the U-shaped groove. The male die and the driving mechanism are installed on the first fixing plate and the second fixing plate respectively, the female die is connected with the output end of the driving mechanism through the mounting base, an arc-shaped protrusion is arranged on the side, facing the female die, of the male die, and an arc-shaped groove matched with the arc-shaped protrusion is formed in the side, facing the male die, of the female die. According to the device, a welding seam part of a stainless steel thin-wall welding cylinder is placed between the male die and the female die, and under the action of certain pressure, the male die andthe female die extrude the welding seam part in the wall thickness direction, so that the welding seam part and metal near the welding seam part generate plastic deformation, welding residual tensilestress of the area is fully released, and the roundness of the area is improved.
Description
technical field [0001] The invention relates to the field of manufacturing equipment for stainless steel thin-walled weldments, in particular to a device for rounding. Background technique [0002] Stainless steel thin-wall welded cylinders are usually welded by stainless steel plates rolled by a plate rolling machine. [0003] Due to the local heating of the welding heat source, it is easy to cause uneven expansion and contraction of various parts of the workpiece, and there are uncoordinated plastic strains and welding residual tensile stresses in the weld area, which leads to the "peach-shaped" cross-section of the stainless steel thin-walled welding cylinder. Its roundness cannot meet the requirements of subsequent parts assembly or automatic welding of circular seams, so stainless steel thin-walled welding cylinders usually need to be rounded after welding. [0004] Roller straightening is a common method for correcting the roundness of thin-walled cylinders. As long a...
Claims
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IPC IPC(8): B21D3/14
CPCB21D3/14
Inventor 李军温树文张书彦张鹏方敏杰魏海冰
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