Flexible stud welding shear test tool

Abstract

The utility model relates to a flexible stud welding shear test tool, which belongs to the technical field of metal processing and comprises a base plate, a pneumatic support mechanism is mounted on the base plate, and the top of the pneumatic support mechanism is connected with a fixed end of a telescopic cylinder; the pneumatic supporting mechanism has a telescopic function and is electrically connected with the controller to adjust the height of the telescopic air cylinder. One end of the pull rod is connected with the movable end of the telescopic air cylinder, and the telescopic air cylinder is electrically connected with the controller. The other end of the pull rod is connected with the shearing rod which is perpendicular to the pull rod. The telescopic cylinder provides shearing force for the detected part through the pull rod; an inner threaded hole is machined in the tail end of the shearing rod and connected with a stud of a detected part. According to the utility model, stud welding shear test equipment can be more simplified, the assembly and operation difficulty is reduced, and the efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal processing, and particularly relates to a flexible stud welding shear test tooling. Background Art

[0002] As a commonly used connection technology, stud welding is widely used in fields such as bridges, buildings, and machinery. At present, the main means to evaluate the mechanical properties of stud weldments are bending tests and tensile tests, and stud welding shear tests are less. Most of the existing shear tests are reflected in the form of tension, and the joints are mostly lap joints, which are connected to the workpiece through connecting pieces and sheared through shear plates. The existing stud welding shear simulation test bench equipment, including a heavy hammer support, a fixed pulley mechanism, a rope mechanism, a heavy hammer mechanism, a sample clamping mechanism, and a base, etc., has the following defects in the tooling used, resulting in fewer stud welding shear tests:

[0003] 1. Special large equipment is required for experiments, and high requirements are imposed on the environment, site, and equipment.

[0004] 2. The assembly is complex, the operation is difficult, and the efficiency is low.

[0005] Therefore, it is of great practical significance to develop a stud welding shear test tooling with excellent stability and shear effect. Content of the Utility Model

[0006] Aiming at the deficiencies of the existing technology, the utility model provides a flexible stud welding shear test tooling. This tooling realizes the stable fixation and effective shear of the stud weldment during the shear test through a uniquely designed flexible connection structure. The disassembly of the tooling and the experimental operation are simple, thereby improving the accuracy and reliability of the test data and increasing the experimental efficiency, providing strong support for the quality assessment of the stud weldment.

[0007] A flexible stud welding shear test tooling includes a base plate. An air-supported mechanism is installed on the base plate, and the top of the air-supported mechanism is connected to the fixed end of a telescopic cylinder; the air-supported mechanism has a telescopic function and is electrically connected to a controller to adjust the height of the telescopic cylinder; one end of a pull rod is connected to the movable end of the telescopic cylinder, and the telescopic cylinder is electrically connected to the controller; the other end of the pull rod is connected to a shear rod, and the shear rod and the pull rod are arranged perpendicular to each other; the telescopic cylinder provides a shear force for the inspected part through the pull rod; an internal threaded hole is machined at the end of the shear rod and is connected to the stud of the inspected part.

[0008] The base plate and the air-supported mechanism are fixed by bolts.

[0009] The top of the air-supported mechanism is connected to the fixed end of the telescopic cylinder by bolts.

[0010] One end of the pull rod is connected to the movable end of the telescopic cylinder by bolts.

[0011] The shear rod is connected to the round hole on the pull rod through a screw connected by threads and a fixing rubber ring.

[0012] The pneumatic support mechanism is a cylinder.

[0013] The beneficial effects of the present utility model are as follows:

[0014] A flexible stud welding shear test tooling provided by the present utility model can simplify the stud welding shear test equipment, reduce the assembly and operation difficulty, improve the efficiency, and provide a new method for the stud welding shear test through this device. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the flexible stud welding shear test tooling provided by the present utility model;

[0016] Figure 2 is Figure 1 the enlarged view of part I in

[0017] Figure 3 is a schematic diagram of the connection between the stud and the workpiece;

[0018] Figure 4 is a schematic diagram of the shear rod in the present utility model;

[0019] Figure 5 is Figure 5 the enlarged view of part II in

[0020] Figure 6 is a partial view in the present utility model;

[0021] Among them,

[0022] 1. Substrate, 2. Pneumatic support mechanism, 3. Telescopic cylinder, 4. Pull rod, 5. Shear rod, 6. Stud, 7. Fixed workpiece, 8. Internal thread hole, 9. Controller, 10. Fixing rubber ring. Detailed Embodiment

[0023] In order to better explain the present utility model for easy understanding, the technical solutions and effects of the present utility model will be described in detail below with reference to the drawings through specific embodiments.

[0024] As shown in Figures 1-6As shown in the figure, a flexible stud welding shear test tooling includes a substrate 1, which plays a role in supporting, assembling, and positioning the entire tooling; the substrate 1 is fixed to the pneumatic support mechanism 2 by bolts, and the pneumatic support mechanism 2 is a cylinder. The top of the pneumatic support mechanism 2 is connected to the fixed end of the telescopic cylinder 3 by bolts; the pneumatic support mechanism 2 has a telescopic function and is electrically connected to the controller 9, playing a role in supporting and height adjustment for the telescopic cylinder 3. One end of the pull rod 4 is connected to the movable end of the telescopic cylinder 3 by bolts, and the telescopic cylinder 3 is electrically connected to the controller 9, applying a horizontal force to the shear rod 5; the other end of the pull rod 4 is connected to the shear rod 5, and the shear rod 5 and the pull rod 4 are arranged perpendicular to each other. The shear rod 5 is connected to the round hole on the pull rod 4 through a screw and a fixed rubber ring 10 connected by threads, and the pull rod 4 is used to stretch and fix the shear rod 5. The telescopic cylinder 3 provides a shear force for the inspected part through the pull rod 4. The end of the shear rod 5 is machined with an internal threaded hole 8 and is connected to the stud 6.

[0025] In this embodiment, the inspected part consists of a stud 6 and a fixed workpiece 7 welded and fixed by stud welding.

[0026] The operation process of the entire experiment is as follows: After the stud 6 and the fixed workpiece 7 are welded by a stud welder, the shear rod 5 is assembled and tightened with the stud 6, so that only the non-threaded part of the stud 6 is exposed. The fixed workpiece 7 is pressed on the test bench by a clamping pliers. The pull rod 4 is passed through the shear rod 5 and assembled and connected to the telescopic cylinder 3. The height of the telescopic cylinder 3 is adjusted through the controller 9 to a position one-third of the distance from the lower end of the shear rod 5 and is coordinated with the pull rod 4; the telescopic cylinder 3 is controlled through the controller 9 to stretch until the tensile force is 0N. The inspected part is loaded, and during the loading process, the controller 9 can adjust the rate and tensile force of the pull rod 4 through the telescopic cylinder 3. When the loading load meets the design value and the stud 6 does not fall off, the welding is qualified.

Claims

1. A flexible stud welding shear test fixture, characterized by: It includes a base plate, on which a pneumatic support mechanism is installed, and the top of the pneumatic support mechanism is connected to the fixed end of the telescopic cylinder; the pneumatic support mechanism has a telescopic function, is electrically connected to the controller, and adjusts the height of the telescopic cylinder; one end of the pull rod is connected to the movable end of the telescopic cylinder, and the telescopic cylinder is electrically connected to the controller; the other end of the pull rod is connected to the shear rod, and the shear rod and the pull rod are arranged perpendicular to each other; the telescopic cylinder provides shear force to the inspected part through the pull rod; the end of the shear rod is processed with an internal threaded hole, which is connected to the stud of the inspected part.

2. A flexible stud welding shear test fixture according to claim 1, characterized in that: The base plate and the pneumatic support mechanism are fixed by bolts.

3. The flexible stud welding shear test fixture according to claim 1, characterized in that: The top of the pneumatic support mechanism is connected to the fixed end of the telescopic cylinder through bolts.

4. The flexible stud welding shear test fixture according to claim 1, characterized in that: One end of the pull rod is connected to the movable end of the telescopic cylinder through a bolt.

5. The flexible stud welding shear test fixture according to claim 1, characterized in that: The shear rod is connected to the circular hole on the pull rod through a screw connected by a thread and a fixing rubber ring.

6. The flexible stud welding shear test fixture according to claim 1, characterized in that: The pneumatic support mechanism is a cylinder.

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