Electrode protection device with novel welding loop

Abstract

The utility model discloses an electrode protection device with a novel welding loop, which comprises a welding rack, the top of the welding rack is provided with a pressurizing assembly, the bottom of the pressurizing assembly is connected with an upper electrode assembly, and a lower electrode assembly is arranged under the upper electrode assembly in a right opposite manner. The side face of the lower electrode assembly is fixedly installed on a lower conductor connected with a welding rack through a clamping block, the clamping block and the lower conductor form a fixing mechanism to fix the lower electrode assembly, and a sliding rail air cylinder assembly arranged between the lower electrode assembly and the welding rack is installed at the top of the lower conductor. The upper electrode assembly and the rear portion of the sliding rail air cylinder assembly are connected with the negative electrode of the welding transformer through flexible connection copper strips to form a welding loop. The welding loop adopts the guide rail cylinder, the upper and lower parts of the guide rail cylinder are provided with the insulating plates and the base for insulation, the cylinder drives the conductor at the uppermost end, and the rear end of the cylinder is of a flexible connection structure, so that the front and back translation of the whole structure cannot interfere with each other; and the selected material is a metal material with good heat conductivity and electrical conductivity and high wear resistance, so that the wear of the electrode tip caused by long-time welding is avoided, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to resistance welding technical field especially a kind of electrode protection device with novel welding loop. BACKGROUND

[0002] Traditional resistance welding process is mostly in the form of upper and lower electrode welding, for Figure 3 As shown in a kind of battery cover plate structure, the previous scheme is to adopt upper and lower welding, to realize a kind of mode of welding loop, battery cover plate structure bottom has L-shaped protrusion, since product bottom is pure aluminum material, if upper and lower welding mode is used, the contact surface of lower electrode head and cover plate is easily adhered to aluminum and lead to wear under certain pressure including certain heat during welding, so electrode service life is difficult to meet the beat of the production line. SUMMARY

[0003] According to the above-mentioned technical problems to be solved, an electrode protection device with novel welding loop is provided.

[0004] To achieve the above object, the utility model discloses an electrode protection device with novel welding loop, which comprises a welding rack, a pressurizing assembly is arranged at the top of the welding rack, an upper electrode assembly is connected to the bottom of the pressurizing assembly, a lower electrode assembly is oppositely arranged below the upper electrode assembly, the side surface of the lower electrode assembly is fixedly installed on a lower conductor connected with the welding rack through a clamping block, the clamping block and the lower conductor constitute a fixing mechanism to fix the lower electrode assembly, a slide rail air cylinder assembly is installed at the top of the lower conductor and arranged between the lower electrode assembly and the welding rack, the upper electrode assembly and the slide rail air cylinder assembly at the rear are respectively connected with the negative electrode of a welding transformer through a soft connection copper belt to form a welding loop.

[0005] Further, the lower electrode assembly comprises a vertically arranged lower electrode rod, a lower electrode connecting piece is arranged at the bottom of the lower electrode rod, a pipe joint is installed on the side surface of the lower electrode connecting piece, and a quick-change structure is arranged at the top of the lower electrode rod.

[0006] Further, the quick-change structure comprises a locking nut arranged at the top of the lower electrode rod, a quick-change groove is formed at the top of the locking nut, a quick-change electrode seat is clamped and installed in the quick-change groove, and a lower electrode insulating sheet is installed at the top of the quick-change electrode seat.

[0007] Further, a guide block is arranged in the quick-change groove at the top of the lower electrode rod, and a guide groove matched with the guide block is formed at the bottom of the quick-change electrode seat.

[0008] Further, the slide rail cylinder assembly comprises a cylinder fixing plate fixed on the top of the clamping block, a slide rail cylinder is installed on the cylinder fixing plate, an output end at the top of the slide rail cylinder is connected with the conductive block through a cylinder connecting plate, an insulating plate is installed on the top of the conductive block, and the conductive block is provided with a quick-change conductive block close to the side of the lower electrode assembly.

[0009] Further, the welding frame is provided with a dust removal port above the slide rail cylinder assembly, comprises a mounting frame fixed on both sides of the welding frame and a suction cavity provided on the mounting frame, the suction cavity is open towards the welding area, suction pipes deviated from the welding area are arranged on both sides of the suction cavity, and the suction pipes are connected with external dust removal equipment.

[0010] Compared with the prior art, the electrode protection device with the novel welding circuit has the advantages that: the novel welding circuit adopts the slide rail cylinder, the slide rail cylinder is insulated by the insulating plates and the bases on the top and bottom of the slide rail cylinder, the cylinder drives the conductor at the uppermost end, the rear end is a structure of soft connection, the overall structure can be translated forward and backward without interference, the end of the welding circuit adopts a quick-change mode, the selected material is a metal material with good heat conduction, good electrical conductivity and high wear resistance, the electrode head is prevented from being worn due to long-time welding, and the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0011] The utility model will be explained further in detail below in combination with the drawings and specific embodiments.

[0012] Figure 1 It is the whole structure schematic diagram of the utility model.

[0013] Figure 2 It is the internal welding circuit schematic diagram of the utility model.

[0014] Figure 3 It is the schematic diagram of the product placed in the welding area of the utility model.

[0015] Figure 4 It is the lower electrode assembly schematic diagram of the utility model.

[0016] Figure 5 It is the internal structure schematic diagram of the quick-change slot of the utility model.

[0017] In the diagram: 1 is the welding frame; 2 is the pressurizing assembly; 3 is the upper electrode assembly; 4 is the fixing mechanism; 41 is the clamping block; 42 is the lower conductor; 5 is the lower electrode assembly; 51 is the lower electrode rod; 511 is the guide block; 52 is the lower electrode connector; 53 is the locking nut; 531 is the quick-change slot; 54 is the quick-change electrode seat; 55 is the lower electrode insulating sheet; 6 is the slide rail cylinder assembly; 61 is the cylinder fixing plate; 62 is the slide rail cylinder; 63 is the cylinder connecting plate; 64 is the conductive block; 65 is the insulating plate; 66 is the quick-change conductive block; 7 is the welding transformer; 8 is the dust removal pipe port; 9 is the flexible copper strip. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] One embodiment of this utility model is as follows: Figure 1 and Figure 2 As shown, a pressure assembly 2 is installed at the top of the welding frame 1, and an upper electrode assembly 3 is connected to the bottom of the pressure assembly 2. A lower electrode assembly 5 is positioned directly below the upper electrode assembly 3. The lower electrode assembly 5 is fixedly mounted on a lower conductor 42 connected to the welding frame 1 via a clamping block 41. The clamping block 41 and the lower conductor 42 form a fixing mechanism 4 to fix the lower electrode assembly 5. A slide rail cylinder assembly 6 is installed at the top of the lower conductor 42, positioned between the lower electrode assembly 5 and the welding frame 1. The upper electrode assembly 3 and the slide rail cylinder assembly 6 are respectively connected to a welding transformer 7 located behind the welding frame 1 via a flexible copper strip 9 to form a welding circuit. Figure 2 As shown, the lower conductor is connected to the negative terminal of the welding transformer via a connecting copper plate and the slide rail cylinder assembly via a flexible copper strip. Figure 3 As shown, driven by the slide rail cylinder, the conductive block abuts against the L-shaped part at the bottom of the cover plate. The slide rail cylinder assembly replaces the original lower electrode assembly as the new lower electrode, and together with the upper electrode assembly, the welding circuit is rebuilt. The lower electrode assembly serves as a supporting structure to support the battery cover plate. Although the side of the cover plate is made of aluminum, the force and heat it bears in the horizontal direction are not as great as those in the top and bottom forms, which can improve the overall lifespan of the electrode.

[0020] like Figure 4 and Figure 5As shown, the lower electrode assembly 5 includes a vertically arranged lower electrode rod 51. A lower electrode connector 52 is located at the bottom of the lower electrode rod 51. A pipe connector is installed on the side of the lower electrode connector 52. A quick-change structure is located at the top of the lower electrode rod 51. The quick-change structure includes a locking nut 53 located at the top of the lower electrode rod 51. A quick-change groove 531 is formed at the top of the locking nut 53. A quick-change electrode holder 54 is snapped into the quick-change groove 531. A lower electrode insulating sheet 55 is installed on the top of the quick-change electrode holder 54. The material used for the lower electrode insulating sheet is insulating, has good heat dissipation, and is durable. High-temperature performance, such as beryllium oxide ceramics, aluminum nitride ceramics, alumina, aluminum nitride ceramics, etc., the top of the lower electrode rod 51 is provided with a guide block 511 in the quick-change groove 53, and the bottom of the quick-change electrode seat 54 is provided with a guide groove that matches the guide block 511. During installation, the guide groove at the bottom of the quick-change electrode seat is inserted into the quick-change groove along the guide block, and the locking nut is rotated. The lower electrode rod and the quick-change electrode seat rise so that the top of the quick-change electrode seat snapping part abuts against the top surface of the quick-change groove of the locking nut, thereby achieving locking and fixing. The lower electrode assembly abuts against the bottom surface of the L-shaped block of the battery cover through height adjustment.

[0021] The slide rail cylinder assembly 6 includes a cylinder fixing plate 61 fixed to the top of the clamping block 4. A slide rail cylinder 62 is mounted on the cylinder fixing plate 61. The output end of the top of the slide rail cylinder 62 is connected to the conductive block 64 through the cylinder connecting plate 63. Specifically, the cylinder connecting plate is made of epoxy resin material. An insulating plate 65 is installed on the top of the conductive block 64. A quick-change conductive block 66 is provided on the side of the conductive block 64 near the lower electrode assembly 5. When the slide rail cylinder is activated, the output end drives the top conductive block to abut against the side of the L-shaped block of the battery cover.

[0022] The welding frame 1 is provided with a dust removal port 8 above the slide rail cylinder assembly 6. It includes a mounting bracket fixed on both sides of the welding frame 1 and an air suction chamber set on the mounting bracket. The opening of the air suction chamber faces the welding area. Air suction pipes are provided on both sides of the air suction chamber that are offset from the welding area. The air suction pipes are connected to external dust removal equipment to absorb the fumes generated in the welding area.

[0023] Several points need to be clarified: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and the relative positional relationships may change when the absolute position of the described objects changes. Second, in this document, relational terms such as "first" and "second" are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities.

[0024] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.

Claims

1. An electrode protection device with a novel welding circuit, comprising a welding frame (1), characterized in that, The welding frame (1) is provided with a pressure assembly (2) at the top, and an upper electrode assembly (3) is connected to the bottom of the pressure assembly (2). A lower electrode assembly (5) is provided directly below the upper electrode assembly (3). The side of the lower electrode assembly (5) is fixedly installed on the lower conductor (42) connected to the welding frame (1) by a clamping block (41). The clamping block (41) and the lower conductor (42) form a fixing mechanism (4) to fix the lower electrode assembly (5). A slide rail cylinder assembly (6) is installed on the top of the lower conductor (42) between the lower electrode assembly (5) and the welding frame (1). The upper electrode assembly (3) and the slide rail cylinder assembly (6) are connected to the negative terminal of the welding transformer (7) through a flexible copper strip (9) to form a welding circuit.

2. An electrode protection device with a novel welding circuit according to claim 1, characterized in that, The lower electrode assembly (5) includes a vertically arranged lower electrode rod (51), a lower electrode connector (52) is provided at the bottom of the lower electrode rod (51), a pipe joint is installed on the side of the lower electrode connector (52), and a quick-change structure is provided at the top of the lower electrode rod (51).

3. An electrode protection device with a novel welding circuit according to claim 2, characterized in that, The quick-change structure includes a locking nut (53) set on the top of the lower electrode rod (51), a quick-change groove (531) is opened on the top of the locking nut (53), a quick-change electrode seat (54) is snapped into the quick-change groove (531), and a lower electrode insulating sheet (55) is installed on the top of the quick-change electrode seat (54).

4. An electrode protection device with a novel welding circuit according to claim 3, characterized in that, The top of the lower electrode rod (51) is provided with a guide block (511) in the quick-change groove (531), and the bottom of the quick-change electrode seat (54) is provided with a guide groove that matches the guide block (511).

5. An electrode protection device with a novel welding circuit according to claim 1, characterized in that, The slide rail cylinder assembly (6) includes a cylinder fixing plate (61) fixed on the top of the clamping block (41), a slide rail cylinder (62) is mounted on the cylinder fixing plate (61), the output end of the top of the slide rail cylinder (62) is connected to the conductive block (64) through the cylinder connecting plate (63), an insulating plate (65) is mounted on the top of the conductive block (64), and a quick-change conductive block (66) is provided on the side of the conductive block (64) near the lower electrode assembly (5).

6. An electrode protection device with a novel welding circuit according to claim 1, characterized in that, The welding frame (1) is provided with a dust removal port (8) above the slide rail cylinder assembly (6), including a mounting frame fixed on both sides of the welding frame (1) and an air suction chamber provided on the mounting frame. The air suction chamber opening faces the welding area, and air suction pipes are provided on both sides of the air suction chamber that are offset from the welding area. The air suction pipes are connected to external dust removal equipment.

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