Top electrode tool structure

Abstract

The utility model relates to the technical field of welding tools, in particular to an upper electrode tool structure which comprises an installation plate, an upper electrode, a bottom plate and a holding rod, the bottom plate is installed on the lower side of the installation plate, an installation hole penetrating through the upper side and the lower side is formed in the bottom plate, and the upper portion of the holding rod is installed in the installation hole. The upper end of the holding rod is connected with a limiting plate on the upper side of the bottom plate; the upper electrode is installed at the lower end of the holding rod. The bottom plate and the mounting plate are adopted to clamp the limiting plate, so that the holding rod is prevented from loosening downwards, convenient mounting is met, the holding rod can be prevented from loosening in the long-time use process, the upper electrode is prevented from being loosened, and the long-time use stability of the upper electrode is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, specifically to an upper electrode tooling structure. Background Technology

[0002] In the field of welding, spot welding is a commonly used processing method. By placing an upper electrode and a lower electrode on the upper and lower sides of the weld seam respectively, the upper and lower electrodes work together on the workpiece to be welded. Through the application of pressure and the conduction of current, resistance heat is generated at the contact point of the workpiece, causing the metal to melt and form a weld spot. During spot welding, the upper electrode is typically responsible for applying pressure and guiding the current, while the lower electrode is fixed to the worktable, providing support and assisting in the conduction of current.

[0003] In existing technologies, the upper electrode is mounted on the welding fixture using a compression fitting method, for example... Figure 1 As shown, the upper electrode is pressed between the mounting block and the clamping block by the cooperation of the mounting block and the clamping block, so that the upper electrode is kept in a vertical position. Although this is convenient for installation, after long-term use, the clamping block and the mounting block are prone to loosening, which will cause the upper electrode to loosen. A loose upper electrode will cause arcing and burn out the tooling. Utility Model Content

[0004] The purpose of this utility model is to provide an upper electrode fixture structure to solve the problem that in the prior art, most upper electrode installation fixtures use a clamping fit to fix the upper electrode, which can easily lead to the upper electrode loosening after long-term use. Loose upper electrode can cause arcing and burn out the fixture.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An upper electrode tooling structure includes a mounting plate and an upper electrode, a base plate and a handle. The base plate is mounted on the lower side of the mounting plate and has mounting holes that pass through the upper and lower sides. The upper part of the handle is mounted in the mounting holes, and the upper end of the handle is connected to a limiting plate on the upper side of the base plate. The upper electrode is mounted on the lower end of the handle.

[0007] A further technical solution is that the upper side of the base plate is recessed around the upper end of the mounting hole and has a limiting ring hole that communicates with the mounting hole, and the limiting plate is installed in the limiting ring hole.

[0008] A further technical solution is to provide a first thread around the outer wall of the limiting plate and a second thread around the hole wall of the limiting ring, with the first thread and the second thread being thread-matched and connected.

[0009] A further technical solution is to provide mounting screw holes that run through both the top and bottom sides near the edge of the base plate, and to provide bolt through holes on the upper side of the mounting plate. When the bolt through holes and the mounting screw holes are aligned, they are fixed together by mounting bolts.

[0010] Further, the technical scheme is that the handle is provided with a cooling hole penetrating through upper and lower ends, the upper end of the cooling hole is provided with a plug for plugging the upper end of the cooling hole, the lower end of the handle is provided with an upper electrode connecting head for plugging the lower end of the cooling hole, the upper electrode is installed at the lower end of the upper electrode connecting head, opposite sides of the handle are respectively provided with a water inlet hole and a water outlet hole communicated with the cooling hole, the water inlet hole and the water outlet hole are arranged in an upper and lower interval, and a water inlet connector and a water outlet connector are respectively installed in the water inlet hole and the water outlet hole.

[0011] Further, the technical scheme is that the inner wall around the lower end of the cooling hole is provided with a third thread, the outer wall around the upper electrode connecting head is provided with a fourth thread, and the third thread and the fourth thread are threadedly matched and connected; and the upper end of the upper electrode connecting head is recessed to form a cooling groove.

[0012] Further, the technical scheme is that the upper end of the upper electrode is recessed to form a connecting groove, and the inner wall around the connecting groove is provided with a fifth thread, and the fifth thread is threadedly matched and connected with the fourth thread.

[0013] Compared with the prior art, the utility model has the beneficial effects that the bottom plate and the mounting plate clamp the limiting plate, so that the handle is prevented from loosening downward, convenient installation is achieved, and the handle is prevented from loosening during long-time use, so that the upper electrode is prevented from loosening, and the stability of the upper electrode during long-time use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a common upper electrode fixing tool in the prior art.

[0015] Figure 2 It is a sectional view of the upper electrode tool structure of the utility model.

[0016] Figure legend: 1-mounting plate, 2-upper electrode, 3-bottom plate, 4-handle, 5-limiting plate, 6-limiting ring hole, 7-mounting screw hole, 8-bolt through hole, 9-mounting bolt, 10-cooling hole, 11-plug, 12-upper electrode connecting head, 13-water inlet hole, 14-water outlet hole, 15-water inlet connector, 16-water outlet connector, 17-cooling groove, 18-connecting groove, 19-mounting hole. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further described in detail below by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0018] Figure 2 The figure shows an embodiment of the utility model.

[0019] Embodiment:

[0020] The upper electrode tool structure comprises a mounting plate 1 and an upper electrode 2, a bottom plate 3 and a handle 4, the bottom plate 3 is mounted on the lower side of the mounting plate 1, the bottom plate 3 is provided with a mounting hole 19 penetrating through the upper and lower sides, the upper part of the handle 4 is mounted in the mounting hole 19, and the upper end of the handle 4 is connected to a limiting plate 5 on the upper side of the bottom plate 3; the upper electrode 2 is mounted on the lower end of the handle 4. The bottom plate 3 and the mounting plate 1 clamp the limiting plate 5, thereby avoiding loosening of the handle 4 downward, which not only meets convenient installation but also avoids loosening of the handle 4 during long-term use, thereby driving the upper electrode 2 to loosen, and the stability of the upper electrode 2 during long-term use is improved.

[0021] The upper side of the bottom plate 3 is recessed around the upper end of the mounting hole 19 and is provided with a limiting ring hole 6 connected with the mounting hole 19, and the limiting plate 5 is mounted in the limiting ring hole 6. By setting the limiting ring hole 6, the limiting plate 5 can be well fixed, and the handle 4 can be fixed by cooperating with the mounting hole 19, so that the upper part of the handle 4 is stably fixed, thereby making the lower electrode at the lower end of the handle 4 have good stability, and dislocation will not occur during long-term use.

[0022] A first screw thread is arranged around the outer wall of the limiting plate 5, a second screw thread is arranged around the hole wall of the limiting ring hole 6, and the first screw thread and the second screw thread are threadedly matched and connected. By setting the first screw thread and the second screw thread, the stability of the connection between the limiting plate 5 and the limiting ring hole 6 is improved, and after the limiting plate 5 is installed, the upper side of the limiting plate 5 abuts against the mounting plate 1 and the lower side abuts against the hole bottom of the limiting ring hole 6, which can avoid rotation of the handle 4 during use.

[0023] The bottom plate 3 is provided with a mounting screw hole 7 penetrating through the upper and lower sides near the edge, the upper side of the mounting plate 1 is provided with a bolt through hole 8, and when the bolt through hole 8 and the mounting screw hole 7 are aligned, they are fixedly connected by a mounting bolt 9. The installation steps of the handle 4 are as follows: the handle 4 is first passed through the mounting hole 19 from the upper side of the bottom plate 3, the limiting plate 5 is mounted in the limiting ring hole 6, the limiting ring hole 6 and the limiting plate 5 are connected firmly by the first screw thread and the second screw thread by rotating the handle 4. Then the bottom plate 3 is attached to the lower side of the mounting plate 1, the bolt through hole 8 and the mounting screw hole 7 are aligned, and then the mounting bolt 9 is passed through the bolt through hole 8 and the mounting screw hole 7 from the upper side of the mounting plate 1 in sequence, and the bottom plate 3 is attached to the lower side of the mounting plate 1 by tightening the mounting bolt 9. The bolt through hole 8, the mounting screw hole 7 and the mounting bolt 9 are provided with a plurality of matched settings.

[0024] The cooling hole 10 is provided with a plug 11 for blocking the upper end of the cooling hole 10, and the lower end of the holding rod 4 is provided with an upper electrode connecting head 12 for blocking the lower end of the cooling hole 10, and the upper electrode 2 is installed at the lower end of the upper electrode connecting head 12. The opposite sides of the holding rod 4 are respectively provided with a water inlet hole 13 and a water outlet hole 14 which are in communication with the cooling hole 10, and the water inlet hole 13 and the water outlet hole 14 are arranged in an upper and lower interval, and the water inlet hole 13 and the water outlet hole 14 are respectively installed with a water inlet joint 15 and a water outlet joint 16. The upper electrode 2 generates a large amount of heat energy during work, in order to avoid the upper electrode 2 from melting due to high temperature, so the upper electrode 2 needs to be cooled during work. The water outlet joint 16 is connected to the water return pipe of the water cooling system through the water inlet joint 15. The cooling water enters the cooling hole 10 from the water inlet hole 13, then absorbs the heat of the upper electrode connecting head 12 in the cooling hole 10, thereby absorbing the heat of the upper electrode 2 through the upper electrode connecting head 12, and then cooling the upper electrode 2 to avoid high temperature of the upper electrode 2.

[0025] A third thread is arranged around the inner wall of the lower end of the cooling hole 10, a fourth thread is arranged around the outer wall of the upper electrode connecting head 12, and the third thread and the fourth thread are threadedly matched and connected; and a cooling groove 17 is recessed at the upper end of the upper electrode connecting head 12. By arranging the third thread and the fourth thread, the upper electrode connecting head 12 can be stably installed at the lower end of the holding rod 4. By arranging the cooling groove 17, the contact area between the upper electrode connecting head 12 and the cooling water in the cooling hole 10 can be increased, thereby improving the heat transfer efficiency.

[0026] A connecting groove 18 is recessed at the upper end of the upper electrode 2, a fifth thread is arranged around the inner wall of the connecting groove 18, and the fifth thread is threadedly matched and connected with the fourth thread. By arranging the connecting groove 18 and the fifth thread, the upper electrode 2 can be installed at the lower end of the upper electrode connecting head 12 after the upper electrode connecting head 12 is installed at the lower end of the holding rod 4, and the connecting groove 18 can increase the contact area between the upper electrode 2 and the upper electrode connecting head 12, thereby facilitating the cooling of the upper electrode 2.

[0027] Although the utility model has been described herein with reference to a number of explanatory embodiments, it should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the disclosure. More specifically, various modifications and improvements can be made to the constituent components and / or layout of the subject combination layout within the scope of the disclosure, drawings and claims. In addition to the modifications and improvements to the constituent components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. An upper electrode jig structure comprising a mounting plate (1) and an upper electrode (2), characterized by, It also includes a bottom plate (3) and a handle bar (4), the bottom plate (3) is installed on the lower side of the mounting plate (1), the bottom plate (3) is provided with a mounting hole (19) penetrating through the upper and lower sides, the upper part of the handle bar (4) is installed in the mounting hole (19), and the upper end of the handle bar (4) is connected with a limiting plate (5) on the upper side of the bottom plate (3); the upper electrode (2) is installed on the lower end of the handle bar (4).

2. The upper electrode tooling structure of claim 1, wherein: The upper side of the bottom plate (3) is recessed around the upper end of the mounting hole (19) and provided with a limiting ring hole (6) communicating with the mounting hole (19), and the limiting plate (5) is installed in the limiting ring hole (6).

3. The upper electrode tooling structure of claim 2, wherein: A first thread is arranged around the outer wall of the limiting plate (5), a second thread is arranged around the hole wall of the limiting ring hole (6), and the first thread and the second thread are threadedly matched and connected.

4. The upper electrode tooling structure of claim 1, wherein: The bottom plate (3) is provided with a mounting screw hole (7) penetrating through the upper and lower sides near the edge, the upper side of the mounting plate (1) is provided with a bolt through hole (8), and when the bolt through hole (8) and the mounting screw hole (7) are aligned, the mounting plate (1) and the bottom plate (3) are fixedly connected through a mounting bolt (9).

5. The upper electrode tooling structure of claim 1, wherein: The handle bar (4) is provided with a cooling hole (10) penetrating through the upper and lower ends, the upper end of the cooling hole (10) is provided with a plug (11) for plugging the upper end of the cooling hole (10), the lower end of the handle bar (4) is provided with an upper electrode connecting head (12) for plugging the lower end of the cooling hole (10), the upper electrode (2) is installed on the lower end of the upper electrode connecting head (12), the opposite sides of the handle bar (4) are respectively provided with a water inlet hole (13) and a water outlet hole (14) communicating with the cooling hole (10), the water inlet hole (13) and the water outlet hole (14) are arranged in an upper and lower interval, and a water inlet connector (15) and a water outlet connector (16) are respectively installed in the water inlet hole (13) and the water outlet hole (14).

6. The upper electrode tooling structure of claim 5, wherein: A third thread is arranged around the inner wall of the lower end of the cooling hole (10), a fourth thread is arranged around the outer wall of the upper electrode connecting head (12), and the third thread and the fourth thread are threadedly matched and connected; the upper end of the upper electrode connecting head (12) is recessed and provided with a cooling groove (17).

7. The upper electrode tooling structure of claim 6, wherein: The upper end of the upper electrode (2) is recessed and provided with a connecting groove (18), a fifth thread is arranged around the inner wall of the connecting groove (18), and the fifth thread and the fourth thread are threadedly matched and connected.

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