Welding device for friction stitch welding
A welding equipment and friction stitch welding technology, applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problems of high environmental requirements, difficult to find the fault of the hydraulic system, large floor space, etc., and achieve simple operation. , the effect of reducing processing costs and reducing floor space
Inactive Publication Date: 2013-07-17
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
[0009] At present, it is known that domestic friction stitch welding experimental equipment mainly uses hydraulic system as the main driving device. Although the hydraulic system can realize gapless transmission and stable movement as the driving device of the equipment, there are still many defects, such as: large loss, Low efficiency and high heat generation; constant ratio transmission cannot be obtained; high environmental requirements; high precision requirements for hydraulic components and high prices; hydraulic stations are required and occupy a large area; high technical level
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[0028] The present invention will be further described below.
[0029] Such as figure 1 , figure 2 and image 3 As shown, a working platform 2 is included, and the working platform 2 includes an upper base plate 26 and a lower base plate 24. The upper base plate 26 and the lower base plate 24 are arranged in parallel at intervals, and the workpiece 21 to be welded is fixed on the upper base plate 26;
[0030] The first driving device, the driving device includes an electric spindle 1 and a frequency converter 7 for driving the electric spindle, a knife handle is installed on the electric spindle 1, and a welding rod is clamped on the knife handle, and the work of the electric spindle is controlled by the frequency converter 7 , stop and speed;
[0031] The second driving device, the driving device includes a frequency conversion motor 5, a reducer 4 and a screw lifter 3, the screw lifter 3 is located at the bottom of the working platform 2, and the screw lifter 3 and the r...
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The invention relates to a welding device, and particularly to a friction welding device. The welding device for friction stitch welding comprises a first driving device for providing a welding rotating speed for welding, a second driving device for providing a welding pressure and a welding feeding speed for the welding, and a data management system. By adopting a semi-vertical layout, the welding device for the friction stitch welding reduces floor area of the device efficiently, is capable of working in a working environment with a relatively small space and is simple to operate. By changing a welding rod into a drilling head, the welding device for the friction stitch welding realizes integration of drilling and welding and reduces processing cost. By adopting a non-hydraulic system as a power device, the welding device for the friction stitch welding avoids the disadvantages of pollution of oil liquid, a demand of a hydraulic station and high requirements on the working environment, and the like. The welding device for the friction stitch welding can finish acquisition and analytic treatment of each welding parameter in the welding process synchronously through a data acquisition card and a PC (Personal Computer).
Description
technical field [0001] The invention relates to a welding device, in particular to a friction welding device. Background technique [0002] Friction stitch welding technology belongs to the field of friction welding technology. It was first proposed by the British Welding Institute in the 1990s as a solid phase connection technology. The welding process of friction stitch welding consists of a series of basic forming units - friction liquid column forming. The basic principle of friction liquid column forming is as follows: first, drill a blind hole of appropriate size in the area to be welded or repaired, and then insert the welding rod into the welded rod at a certain rotation speed and feed speed and apply axial force Drilled blind holes. When the rotating welding rod comes into contact with the bottom of the welding hole, the frictional shearing process begins, and the frictional heat generated causes the welding rod to undergo plastic flow on the frictional shearing s...
Claims
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Login to View More IPC IPC(8): B23K20/12B23K20/26
CPCY02P70/10
Inventor 闫崇京陈祥房文林
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS