Constant-pressure structure device for friction stir welding
A friction stir welding, constant pressure technology, applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve problems such as inability to effectively control pressure, difficult to obtain stable and reliable welding quality, etc., to reduce flash grinding process steps, Good welding effect and anti-slip effect
Active Publication Date: 2020-11-24
湖南坤鼎数控科技有限公司
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Problems solved by technology
[0003] The object of the present invention is to provide a friction stir welding constant pressure structure device to solve the problem that the friction stir welding equipment without pressure control function proposed in the above background technology is difficult to obtain stable and reliable welding quality. At the same time, most domestic friction stir welding machines There are no related functions on the bed, and the problem of not being able to effectively control the pressure during the welding process
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[0019] 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 some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0020] see Figure 1-5 , an embodiment provided by the present invention:
[0021] A friction stir welding constant pressure structure device, comprising a device main body 1, the device main body 1 includes a screw rod 110, both sides of the screw rod 110 are fixedly installed with an adjusting washer 111, and the top of the adjusting washer 111 is fixedly installed with a plane ball bearing 112, A strain gauge pressure sensor 113 is fixedly installed on the...
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The invention relates to the technical field of constant-pressure structure devices for friction stir welding, in particular to a constant-pressure structure device for friction stir welding. The constant-pressure structure device for friction stir welding comprises a device main body, wherein the device main body comprises a lead screw; the two sides of the lead screw are fixedly equipped with regulating gaskets; the top ends of the regulating gaskets are fixedly equipped with planar ball bearings; and the top ends of the planar ball bearings are fixedly equipped with strain type pressure sensors. A connecting mechanism and a bearing base are arranged, so that compared with a main shaft pressure sensor or other pressure bearing sensors, the constant-pressure structure device is simple instructure, is lower in cost, is good in welding effect, is free of welding built-up edges of the constant-pressure system and is great in flash; a welding seam is flat, and is free of flash and burs after constant-pressure welding, so that follow-up tracking is realized in a welding process; shaft shoulder pressing amount of a stirring tool is automatically controlled according to a pressure valuefed back by the sensor, so that the surface of a workpiece is more attractive, welding flash hardly exists, and follow-up flash grinding process steps are reduced.
Description
technical field [0001] The invention relates to the technical field of friction stir welding constant pressure structural devices, in particular to a friction stir welding constant pressure structural device. Background technique [0002] In the process of friction stir welding, the pressure exerted by the stirring needle on the workpiece has an important influence on the welding quality. In actual production, due to the unevenness of the weld surface and the deformation of the workpiece, the contact between the stirring needle and the workpiece changes continuously during welding, resulting in unstable pressure. When the welding pressure is too small, the welded joint cannot form a dense structure, resulting in a decrease in joint strength; when the welding pressure is too high, the friction between the stirring needle and the workpiece will generate too much heat, and defects such as holes and tunnels will easily form inside the joint. Therefore, it is difficult to obtain...
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IPC IPC(8): B23K20/12
CPCB23K20/12B23K20/122B23K20/1245
Inventor 雷勋发张新胜罗益
Owner 湖南坤鼎数控科技有限公司