CN220718230U - T-shaped joint welding positioning fixture - Google Patents

Abstract

The utility model provides a T-shaped joint welding positioning fixture which comprises a base, wherein a welding boss used for placing a transverse test plate is arranged on the base, a welding groove used for placing a vertical test plate is arranged on the welding boss, and a plurality of groups of clamping devices used for clamping the transverse test plate are also arranged on the base or the welding boss. The utility model is used for solving the positioning, clamping and welding problems of the T-shaped joint of the sheet metal component.

Description

T-shaped joint welding positioning fixture

Technical Field

The utility model relates to the technical field of automobile manufacturing, in particular to a T-shaped joint welding positioning clamp.

Background

Common forms of welded joints in automotive construction are butt joints, corner joints, lap joints, T-shapes, etc., wherein T-shaped welded joints are particularly common in frame structure metal parts. When the quality evaluation is carried out on the T-shaped welding joint, only the appearance, the metallography, the X-ray and the like can be usually tested, and the mechanical property test is difficult to carry out due to the structural limitation of the T-shaped welding joint, so that an important evaluation index is lacked.

The patent with the publication number of CN112577820A provides a tensile test method for a T-shaped welding joint, but the method is only suitable for the mechanical property test of the T-shaped joint of a tubular workpiece and is not suitable for the mechanical property test of the T-shaped joint of a sheet metal component; the patent with the publication number of CN208304865U provides a base clamping device for testing the mechanical properties of T-shaped welding joints, but the problem that a sample cannot be clamped or separated from a clamp easily occurs when the base plate is thinner, so that the manufacturing of the sample is affected. Therefore, a positioning fixture for a sheet metal member T-shaped joint welding sample for satisfying mechanical property detection needs to be designed.

Disclosure of Invention

The utility model aims to provide a T-shaped joint welding positioning clamp which is used for solving the positioning, clamping and welding problems of a sheet metal component T-shaped joint.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a T shape connects welding positioning fixture, includes the base, the base on be provided with the welding boss that is used for placing horizontal test board, the welding boss on be provided with the welding groove that is used for placing vertical test board, base or welding boss on still be provided with a plurality of groups and be used for pressing from both sides the clamping device of tight horizontal test board.

Further, two groups of welding bosses are arranged in parallel, and the welding groove is arranged between the two groups of welding bosses.

Further, two groups of clamping devices are arranged on two sides of each group of welding bosses.

Further, the welding boss is detachably connected with the base through bolts.

Further, a plurality of groups of positioning blocks for positioning and placing the transverse test plates are arranged on the welding boss.

Further, a mounting boss is arranged on the base corresponding to the clamping device.

Further, the clamping device is a quick clamp, and the base of the quick clamp is screwed on the mounting boss.

Further, the head of the quick clamp is fixedly provided with an adjusting bracket, an adjusting bolt is arranged in the adjusting bracket in a penetrating manner from bottom to top, and the upper end of the adjusting bolt is rotatably connected with an adjusting nut.

Further, two sides of the base are provided with long round grooves.

The utility model has the beneficial effects that: the utility model can accurately limit three degrees of freedom of the test board to position by using the clamp, and can clamp the test board by using the clamping device, thereby manufacturing a test sample with stable quality and capability of carrying out mechanical property test, and carrying out tensile test on the T-shaped welding joint by using a conventional tensile testing machine to obtain quantitative numerical value of the mechanical property of the T-shaped welding joint, and has high reliability of test effect and simple operation.

The utility model will be described in more detail below with reference to the drawings and examples.

Drawings

FIG. 1 is a block diagram of a T-joint welding positioning fixture of the present utility model.

Fig. 2 is a top view of a T-joint welding positioning fixture of the present utility model.

Fig. 3 is a structural view of the clamping device in the present utility model.

Fig. 4 is a block diagram of the present utility model with a horizontal test panel and a vertical test panel placed on a fixture.

Fig. 5 is a schematic view of the processing of a T-joint into a spindle.

Detailed Description

The T-shaped joint welding positioning fixture shown in fig. 1 and 2 comprises a base 1, wherein a welding boss 2 for placing a transverse test plate 6 is arranged on the base 1, a welding groove 20 for placing a vertical test plate 7 is formed in the welding boss 2, and a plurality of groups of clamping devices 4 for clamping the transverse test plate 6 are further arranged on the base 1 or the welding boss 2.

Preferably, in combination with the above-mentioned scheme, for convenience of installation and processing, the welding bosses 2 are arranged in parallel with two groups, and the welding groove 20 is arranged between the two groups of welding bosses 2.

Preferably, in combination with the above scheme, in order to ensure that the two sides of the transverse test plate 6 are clamped and the stress is uniform, two groups of clamping devices 4 are arranged on the two sides of each group of welding bosses 2. Four groups of clamping devices 4 are correspondingly arranged on each group of welding bosses 2.

Preferably, in combination with the above scheme, for easy assembly, the welding boss 2 is detachably connected with the base 1 through bolts.

Preferably, in combination with the above scheme, in order to facilitate spacing and placing the transverse test board 6, ensure accurate positioning, the welding boss 2 on be provided with a plurality of groups of locating pieces 5 for positioning and placing the transverse test board 6.

Preferably, in combination with the above scheme, in order to install the clamping device 4, the clamping device 4 is lifted to a required height, and the base 1 is provided with an installation boss 3 corresponding to the position of the clamping device 4.

Preferably, in combination with the above solution, in order to facilitate rapid clamping of the transverse test plate 6, the clamping device 4 is a quick clamp, and the base of the quick clamp is screwed on the mounting boss 3. The quick clamp can use a Clampetk CH-22100 quick clamp.

Preferably, in combination with the above scheme, as shown in fig. 3, in order to facilitate screwing the head of the lower end of the bolt against the transverse test board 6 to adjust and clamp so as to adapt to the fixation of test boards with different thicknesses, the head of the quick clamp is fixedly provided with an adjusting bracket 41, an adjusting bolt 42 is arranged in the adjusting bracket 41 in a penetrating manner from bottom to top, and the upper end of the adjusting bolt 42 is rotatably connected with an adjusting nut 43. The use of metal adjustment bolts 42 may resist heat generated during the welding process.

Preferably, in combination with the above solution, in order to facilitate the taking and placing of the clamp, two sides of the base 1 are provided with oblong grooves 12. Of course, handles can be arranged on two sides of the base 1.

The length, width and height dimension ranges of the welding boss 2 are respectively as follows: 155-180mm, 120-140mm, 12-20mm, the spacing between the two sets of welding bosses 2 (i.e. the width of the welding groove 20) is 12.5-20mm. As shown in fig. 4, during welding, a transverse test board 6 is firstly laid on the left welding boss 2, and three degrees of freedom of the transverse test board 6 are limited by five positioning blocks 5 on the left welding boss 2; then, the vertical test plate 7 is vertically placed in the welding groove 20 closely to the transverse test plate 6; the other transverse test plate 6 is horizontally placed on the right welding boss 2, one end of the transverse test plate is tightly attached to the vertical test plate 7, and three degrees of freedom of the transverse test plate 6 are limited by the five positioning blocks 5 on the right welding boss 2; and then the quick clamp is operated to clamp the two transverse test plates 6, so that the cross-shaped connector can be welded. Welding four welding seams at the cross joint, cooling the workpiece to room temperature after welding the first welding seam, and then welding the next welding seam, wherein the welding parameters of the four welding seams are the same; after welding, the cross-shaped joint is processed into a spindle shape, and a universal electronic testing machine is used for tensile test, and the narrower end of the joint is more easy to crack in the tensile test because the joint is in the spindle shape.

In the description of the present utility model, it should be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "bottom", "inner", "outer", "one end", "one side", "both ends", "both sides", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

While the utility model has been described above by way of example with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the specific embodiments described above, but is intended to cover modifications of the utility model, both as regards its method concepts and technical solutions, and as regards its direct application to other applications, without departing from the scope of the utility model.

Claims (7)

1. The utility model provides a T shape connects welding positioning fixture, includes base (1), characterized by, base (1) on be provided with welding boss (2) that are used for placing horizontal test board (6), welding boss (2) on be provided with welding groove (20) that are used for placing vertical test board (7), base (1) or welding boss (2) on still be provided with a plurality of sets of clamping device (4) that are used for pressing from both sides tight horizontal test board (6), welding boss (2) on be provided with a plurality of sets of locating pieces (5) that are used for horizontal test board (6) location to put; the base (1) is provided with a mounting boss (3) at a position corresponding to the clamping device (4).

2. The welding positioning fixture for the T-shaped joint according to claim 1, wherein two groups of welding bosses (2) are arranged in parallel, and the welding groove (20) is arranged between the two groups of welding bosses (2).

3. The welding positioning fixture for T-shaped joints according to claim 2, wherein two groups of clamping devices (4) are arranged on two sides of each group of welding bosses (2).

4. A T-joint welding positioning jig according to any one of claims 1 to 3, wherein the welding boss (2) is detachably connected to the base (1) by bolts.

5. The welding positioning fixture for T-shaped joints according to claim 1, wherein the clamping device (4) is a quick clamp, and the base of the quick clamp is screwed on the mounting boss (3).

6. The T-joint welding positioning fixture according to claim 5, wherein an adjusting bracket (41) is fixedly arranged at the head of the quick clamp, an adjusting bolt (42) is arranged in the adjusting bracket (41) in a penetrating manner from bottom to top, and an adjusting nut (43) is rotatably connected to the upper end of the adjusting bolt (42).

7. The T-joint welding positioning fixture according to claim 1, wherein the base (1) is provided with oblong grooves (12) on both sides.