Test panel welding fixture

Abstract

The invention discloses a test panel welding fixture. The test panel welding fixture comprises a clamp body (1), a flange plate (2), a support column (3) and a base (4). The clamp body is symmetrically arranged both in the longitudinal direction and in the transverse direction, and the upper surface of the clamp body is provided with support racks (1.1), support boards (1.3) and hinge shafts (1.2); a dial (1.4) is fixedly arranged on the front vertical surface; the bottom of each support board is provided with an angle adjusting device (1.5); the bottom of a cushion block (1.14) is provided with a cushion block lifting adjusting device (1.11); the flange plate is fixedly connected with the clamp body; one end of the support column is connected with the flange plate through a bearing (2.1), and the other end of the support column is fixedly connected to the base; the upper surface of the base is provided with locking devices (4.1) matched with positioning blocks (1.15). The test welding fixture can easily and accurately adjust a test panel to a required welding anti-deformation angle, can be applied to various test panels and can improve the welding efficiency and meanwhile reduce the labor intensity of welding personnel.

Description

technical field [0001] The invention relates to a test plate welding tool, in particular to a test plate welding tool for testing the mechanical properties of deposited metal, and belongs to the field of fusion welding process equipment. Background technique [0002] The mechanical performance test of electrode deposited metal is the most important content of welding material test. The weld metal is composed of two parts, one is the molten electrode or wire, and the other is the molten base metal. The deposited metal refers to the molten metal in the weld. part of the electrode or wire. [0003] At present, the carbon steel electrode adopts the GB / T 5117-1995 "Carbon Steel Electrode" standard when testing the mechanical properties of the deposited metal. The standard stipulates that the test plate should be anti-deformed or restrained before welding to prevent angular deformation, that is, two test plates The plate is welded with anti-deformation measures or restraint measu...

AI Technical Summary

Problems solved by technology

[0006] 1. Since the inclination angle of the support frame and the thickness of the spacer are determined, the test plate must be fixedly installed on the support frame, and the inclination angle of the support frame can only be achieved after it is fully fitted with the support frame. Therefore, for test plates of different thicknesses 1. Different anti-deformation angles need to be adjusted by replacing different support frames and pads, which is inconvenient to use and requires a special space to place different support frames and pads, wasting resources;

[0007] 2. Since the backing plate 6 and the test plate 5 need to be spot welded during use, and then the test plate 5 is taken off as a whole, turned over 180° and then formally welded, the test plate 5 and the backing plate 6 are in the opposite direction of the welding groove Spot welding, so under the action of the internal stress of the spot welding point, the end of the test plate 5 away from the backing plate 6 will tilt its head, thereby increasing the set anti-deformation angle, and the anti-deformation angle of the test plate when it is turned over 180° and then formally welded The deformation angle is larger than the set reverse deformation angle, which is inaccurate;

[0008] 3. During the welding process of removing the test boards, the two test boards will be gradually deformed to the level. Due to the gravity of the test boards, the deformation of the test boards will be accelerated, so the deformation angle after welding may not be the predicted angle, and it will not be very fast. Flat, even warped head, affecting welding quality;

[0009] 4. According to the standard, the number of welding layers is at least 5-7 layers according to the diameter of the electrode, and the maximum is 10-12 layers. Each layer has two weld passes, so that when the welder completes a weld pass, the workpiece needs to be moved Rotate the workpiece by 180° for the welding of the next pass, and the labor intensity of the welding personnel is high

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