Clamping block type small-pipe-diameter butt joint welding tool

Abstract

The utility model relates to the technical field of semiconductor gas pipeline welding, in particular to a clamping block type small-pipe-diameter butt joint welding tool which comprises a clamping head and a pair of tension pliers, the clamping head is formed by inserting and combining an upper clamping head and a lower clamping head, and the clamping head and the lower clamping head are fixedly connected to a jaw of the tension pliers respectively; welding gun positioning holes are formed in the top and the bottom of the chuck, a clamping positioning hole for clamping a pipe fitting is formed in the side face of the chuck, and an observation hole is formed in the side face, perpendicular to the clamping positioning hole, of the chuck. According to the clamping block type small-pipe-diameter butt joint welding tool, the distance between a welding gun head and a pipe fitting is kept consistent through the design of the welding gun positioning hole in the shape of the chuck countersink hole, and the tungsten clamping risk generated in the spot welding process is avoided; through the clamping effect of the upper chuck and the lower chuck, the alignment tolerance during assembly is guaranteed, the process step of secondary calibration after spot welding is omitted, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor gas pipeline welding, in particular to a clamping block type small-diameter butt spot welding tool. Background Art

[0002] In the prior art, butt welding between semiconductor tubes and tubes, tubes and standard parts, and standard parts and standard parts is performed by direct spot welding with a manual handheld welding gun. During the spot welding process, since the distance between the front end of the tungsten electrode and the surface of the workpiece is too close, which is generally required to be between 0.6mm and 1.2mm, it is difficult to always ensure this distance through manual welding. In actual production, the tungsten electrode and the workpiece are often too close or even contact each other, resulting in tungsten clamping. At the same time, manual spot welding can easily cause the misalignment between pipe fittings to exceed the tolerance. In the field of semiconductor gas pipeline welding technology, high requirements are placed on the misalignment of butt welding, and secondary correction is often required after manual spot welding. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a clamp-type small-diameter butt spot welding tool. The clamp-type small-diameter butt spot welding tool keeps the distance between the welding gun head and the pipe fitting consistent through the design of the welding gun positioning hole in the shape of the clamp countersunk hole, thereby avoiding the risk of tungsten clamping during spot welding; the clamping effect of the upper and lower clamps ensures the amount of misalignment during assembly, omits the process step of secondary calibration after spot welding, and improves processing efficiency.

[0004] The technical solution of the utility model is as follows:

[0005] A clamp-block type small-diameter butt spot welding tool comprises a chuck and a tension pliers, wherein the chuck is composed of an upper chuck and a lower chuck assembled by insertion, and the chuck and the lower chuck are respectively fixedly connected to the jaws of the tension pliers; welding gun positioning holes are arranged on the top and bottom of the chuck, a clamping positioning hole for clamping a pipe fitting is arranged on the side of the chuck, and an observation hole is arranged on the side of the chuck perpendicular to the clamping positioning hole.

[0006] The welding gun positioning hole is a countersunk hole that matches the welding gun head.

[0007] The clamp head and the lower clamp head are respectively welded on the jaws of the tension pliers.

[0008] The observation hole is an oblong hole.

[0009] The welding gun positioning hole comprises a through welding gun positioning hole A arranged at the top center of the upper clamp and a through welding gun positioning hole B arranged at the bottom center of the lower clamp.

[0010] The clamping positioning hole comprises a clamping positioning hole A arranged on the side of the upper clamp and a clamping positioning hole B arranged on the side of the lower clamp and matched with the clamping positioning hole A.

[0011] The bottom of the upper clamp and the top of the lower clamp are matched through an insert structure, and the insert structure includes a boss arranged at the bottom of the upper clamp and a groove arranged at the top of the lower clamp and matched with the boss.

[0012] The boss is provided with an inclined surface, and the groove is provided with an inclined surface matching the inclined surface of the boss.

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

[0014] 1. The utility model discloses a clamping block type small-diameter butt spot welding tool. The clamping block type small-diameter butt spot welding tool keeps the distance between the welding gun head and the workpiece consistent through the design of the countersunk hole inside the tool, and the relative position of the tungsten electrode and the welding gun is also fixed, thereby ensuring the distance between the tungsten electrode and the workpiece, thereby avoiding the risk of tungsten clamping during spot welding.

[0015] 2. The utility model discloses a clamp-type small-diameter butt spot welding tool. The clamp-type small-diameter butt spot welding tool ensures the misalignment during assembly through the clamping action of the upper and lower clamps, omits the process step of secondary calibration after spot welding, and improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0017] In the attached picture:

[0018] Figure 1 This is a structural schematic diagram of a clamp-type small-diameter butt spot welding tooling according to an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the chuck clamping the pipe fitting;

[0020] Figure 3 is a schematic diagram of the three-dimensional structure of the chuck;

[0021] Figure 4 Schematic diagram of the three-dimensional structure of the upper chuck;

[0022] Figure 5 Schematic diagram of the three-dimensional structure of the lower chuck;

[0023] The components represented by the reference numerals in the figure are:

[0024] The utility model: 1. chuck, 1a. upper chuck, 1a1. welding gun positioning hole A, 1a2. clamping positioning hole A, 1a3. boss, 1b. lower chuck, 1b1. welding gun positioning hole B, 1b2. clamping positioning hole B, 1b3. observation hole B, 1b4. groove, 11. welding gun positioning hole, 12. clamping positioning hole, 13. observation hole, 2. tension pliers, 3. pipe fitting A, 4. pipe fitting B. DETAILED DESCRIPTION

[0025] like Figure 1 As shown, the clamp-type small-diameter pipe butt spot welding tool includes a clamp 1 and a tension pliers 2.

[0026] like Figure 3 As shown, the chuck 1 is composed of an upper chuck 1a and a lower chuck 1b which are assembled by insertion.

[0027] See also Figure 1 The clamp 1a and the lower clamp 1b are respectively welded and fixed on the jaws of the tension pliers 2.

[0028] A welding gun positioning hole 11 is provided at the top and bottom of the chuck 1. The welding gun positioning hole 11 is a countersunk hole matching the welding gun head. The distance between the welding gun head and the workpiece is kept consistent through the design of the countersunk hole inside the tooling, and the relative position of the tungsten electrode and the welding gun is also fixed, thereby ensuring the distance between the tungsten electrode and the workpiece, thereby avoiding the risk of tungsten clamping during spot welding.

[0029] A clamping positioning hole 12 for clamping the pipe fitting is arranged on the side of the clamp 1. Through the clamping action of the upper and lower clamps, the misalignment during assembly is ensured, the process step of secondary calibration after spot welding is omitted, and the processing efficiency is improved. Figure 2 The spot welding of the pipe fittings A3 and B4 shown in the figure is performed by clamping the pipe fittings A3 and B4 with the upper and lower clamps, and then inserting the welding gun nozzles into the welding gun positioning holes 11 at the top and bottom of the clamps in turn to perform spot welding.

[0030] An observation hole 13 is provided on the side of the chuck 1 which is perpendicular to the clamping positioning hole 12 ; the observation hole 13 is an oblong hole, through which the contact surfaces of the two pipes can be visually seen, thereby facilitating the position of the adjuster.

[0031] like Figure 4 and Figure 5As shown, the welding gun positioning hole 11 includes a through welding gun positioning hole A1a1 arranged at the top center of the upper clamp 1a and a through welding gun positioning hole B1b1 arranged at the bottom center of the lower clamp 1b; the clamping positioning hole 12 includes a clamping positioning hole A1a2 arranged on the side of the upper clamp 1a and a clamping positioning hole B1b2 arranged on the side of the lower clamp 1b and matching with the clamping positioning hole A1a2; the bottom of the upper clamp 1a and the top of the lower clamp 1b are matched by an insertion structure, and the insertion structure includes a boss 1a3 arranged at the bottom of the upper clamp 1a and a groove 1b4 arranged at the top of the lower clamp 1b and matching with the boss; the boss 1a3 is provided with an inclined surface, and the groove 1b4 is provided with an inclined surface matching with the inclined surface of the boss 1a3; the observation hole 13 is also composed of observation holes on the upper clamp 1a (observation hole A, not shown in the figure) and the lower clamp 1b (observation hole B1b3).

[0032] The clamp-type small-diameter butt spot welding fixture keeps the distance between the welding gun head and the pipe fitting consistent through the design of the welding gun positioning hole in the shape of the clamp countersunk hole, avoiding the risk of tungsten clamping during spot welding; the clamping effect of the upper and lower clamps ensures the misalignment during assembly, omits the process step of secondary calibration after spot welding, and improves processing efficiency.

Claims

1. A clamping block type small diameter pipe butt spot welding tool, characterized in that: The invention comprises a chuck (1) and a tension clamp (2), wherein the chuck (1) is composed of an upper chuck (1a) and a lower chuck (1b) which are assembled by insertion, and the upper chuck (1a) and the lower chuck (1b) are respectively fixedly connected to the jaws of the tension clamp (2); welding gun positioning holes (11) are arranged on the top and bottom of the chuck (1), a clamping positioning hole (12) for clamping a pipe fitting is arranged on the side of the chuck (1), and an observation hole (13) is arranged on the side of the chuck (1) which is perpendicular to the clamping positioning hole (12).

2. A clamp-type small-diameter pipe butt spot welding tool according to claim 1, characterized in that: The welding gun positioning hole (11) is a countersunk hole matching the welding gun head.

3. The clamp-type small-diameter pipe butt spot welding tool according to claim 1, characterized in that: The upper clamp (1a) and the lower clamp (1b) are respectively welded to the jaws of the tension pliers (2).

4. The clamp-type small-diameter butt spot welding tool according to claim 1, characterized in that: The observation hole (13) is an oblong hole.

5. The clamp-type small-diameter pipe butt spot welding tool according to claim 1, characterized in that: The welding gun positioning hole (11) comprises a through welding gun positioning hole A (1a1) arranged at the top center of the upper clamp (1a) and a through welding gun positioning hole B (1b1) arranged at the bottom center of the lower clamp (1b).

6. The clamp-type small-diameter pipe butt spot welding tool according to claim 1, characterized in that: The clamping positioning hole (12) comprises a clamping positioning hole A (1a2) arranged on the side of the upper clamp (1a) and a clamping positioning hole B (1b2) arranged on the side of the lower clamp (1b) and cooperating with the clamping positioning hole A (1a2).

7. The clamp-type small-diameter pipe butt spot welding tool according to claim 1, characterized in that: The bottom of the upper chuck (1a) and the top of the lower chuck (1b) are matched via an insertion structure, wherein the insertion structure comprises a boss (1a3) arranged at the bottom of the upper chuck (1a) and a groove (1b4) arranged at the top of the lower chuck (1b) and matched with the boss.

8. The clamp-type small-diameter pipe butt spot welding tool according to claim 7, characterized in that: The boss (1a3) is provided with an inclined surface, and the groove (1b4) is provided with an inclined surface matching the inclined surface of the boss (1a3).

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