Main electrode for split-flow type electrode device for projection welding

Abstract

The utility model provides a main electrode for a shunt type electrode device aiming at the requirement that an electrode of a novel projection welding machine adopts a shunt type structure, and solves the technical problems that a connecting wire of a current sensor and the like of the shunt type electrode device for projection welding is exposed outside, inconvenience is brought to the use of the welding machine, and the cleanliness of the whole product is influenced. The main electrode for the split-flow type electrode device for projection welding comprises a main electrode body, the main electrode body is provided with a sub-electrode connecting surface used for being electrically connected with a sub-electrode, and the sub-electrode connecting surface is provided with at least two connecting structures used for being electrically connected with the sub-electrode. According to the main electrode for the split-flow type electrode device for projection welding, which is disclosed by the utility model, at least two sub-electrodes can be fixedly connected to the surface of the main electrode through the connecting structures, so that the split-flow type electrode device is formed; the distance between the connecting line of each current sensor and the wire duct is short, and the connecting line and the wire duct are not staggered.

Description

Technical Field

[0001] The utility model relates to the technical field of electric welding equipment, in particular to a main electrode for an electrode device for projection welding. Background Art

[0002] In order to solve the problem that the existing projection welding machine cannot know the welding quality of each bump during projection welding, our company has developed a shunt electrode device for projection welding machine, such as Figure 1 As shown, the electrode device includes a main electrode 100 and at least two sub-electrodes 200, each of which is spaced apart and arranged on the surface of the main electrode. The main electrode and each sub-electrode are electrically conductive to each other. A current sensor 300 is provided on each electrode, and each current sensor is connected to a controller via a connecting wire (the connecting wire and the controller are not shown in the figure). When there are many sub-electrodes, for example, when the number of bumps is 10, 10 sub-electrodes are required, and accordingly 10 current sensors are required, resulting in multiple connecting wires distributed around the electrode. These connecting wires not only affect the aesthetics of the welding machine, but also bring inconvenience to the operation of the electrode and also pose a safety risk. To this end, our company has developed a main electrode for a shunt electrode that is used in conjunction with the sub-electrodes to form a complete shunt electrode device. On the other hand, it further solves the technical problem of exposed connecting wires affecting the normal operation of the welding machine. Utility Model Content

[0003] The purpose of the utility model is to provide a main electrode for a shunt-type electrode device in response to the demand that the electrode of a new projection welding machine adopts a shunt-type structure.

[0004] Another object of the present invention is to solve the technical problem that the connecting wires of the current sensor and the like of the shunt electrode device for projection welding are exposed, which brings inconvenience to the use of the welding machine and affects the neatness of the entire product, and to provide a main electrode for the shunt electrode device for projection welding.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A main electrode for a shunt-type electrode device for projection welding, comprising a main electrode body, a sub-electrode connecting surface for conductive connection to a sub-electrode provided on the main electrode body, and at least two connecting structures for conductive connection to the sub-electrode provided on the sub-electrode connecting surface, each connecting structure being used to connect to one sub-electrode;

[0007] A wire accommodating groove is provided on the connecting surface of the sub-electrode, the wire accommodating groove is used to accommodate the conductive connecting wire, and the wire accommodating groove is located in the area outside the positioning groove;

[0008] The connection structure is one or a group of connection holes or connection threaded holes, or a sink groove;

[0009] A wire accommodating groove is provided on the connecting surface of the sub-electrode, and the wire accommodating groove is used to accommodate the conductive connecting wire;

[0010] The wire duct is arranged along the direction of the line connecting the center lines of the connecting structure;

[0011] A wire trough cover is provided on the wire trough, and the wire trough cover is fixedly connected to the wire trough;

[0012] A positioning groove is provided on the connecting surface of the sub-electrodes at a position corresponding to the connecting structure, and the connecting structure is located in the positioning groove.

[0013] The main electrode used in the shunt-type electrode device for projection welding adopts the structure of the utility model, and at least two connecting structures for connecting sub-electrodes are provided on the surface of the main electrode body. Therefore, at least two sub-electrodes can be fixedly connected to the surface of the main electrode through the connecting structure to form a shunt-type electrode device.

[0014] The main electrode used in the shunt-type electrode device for projection welding adopts the structure of the utility model. Since a wire groove is provided on the surface of the main electrode along the direction of each connecting hole, the connecting wire of the current sensor can be arranged in the wire groove, and a wire groove cover is provided on the wire groove. After the connecting wire is led out from the current sensor and enters the wire groove, it is covered by the wire groove cover. Therefore, the connecting wire can be hidden in the wire groove, making the entire electrode device neat and tidy, and there will be no phenomenon of mutual interference between the connecting wires. Since the wire groove is provided along the distribution direction of each connecting through hole, the distance from the connecting wire of each current sensor to the wire groove is short and there is no interlacing between them. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of an embodiment of the split-flow electrode device described in the background technology of the present utility model, wherein some split electrodes are removed;

[0016] Figure 2 This is a schematic structural diagram of an embodiment of the main electrode of the utility model;

[0017] Figure 3 This is a schematic structural diagram of an embodiment of the present invention after the main electrode and the sub-electrode are assembled.

[0018] Description of Reference Numerals

[0019] 100 - main electrode; 101 - connection structure; 102 - positioning groove; 103 - wire accommodating groove; 104 - missing corner; 105 - connecting groove; 106 - wire trough cover; 200 - sub-electrode; 300 - current sensor; DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] like Figure 2 As shown, the main electrode used in the shunt-type electrode device for projection welding of the present invention includes a main electrode body, which is used to support and secure at least two sub-electrodes. A sub-electrode connection surface for connecting the sub-electrodes is provided on the main electrode. Preferably, at least two connection structures 101 are provided on the sub-electrode connection surface, with each connection structure connected to a corresponding sub-electrode. Each connection structure 101 can be one or a group of connection holes or threaded holes, with the centerline of the connection hole or threaded hole perpendicular to the sub-electrode connection surface. The connection structure can also be a recessed groove for accommodating the connection end of the sub-electrode. Using the main electrode structure of the present invention, the sub-electrodes can be fixed to the sub-electrode connection surface of the main electrode via the connection structure, for example, using the aforementioned connection holes or threaded holes in conjunction with connecting bolts to secure the sub-electrodes to the sub-electrode connection surface of the main electrode. There are at least two connection structures, each for connecting a sub-electrode. The connection structures are distributed so that multiple sub-electrodes can be arranged in parallel to shunt the current of the main electrode. The location of the connection structure depends on the distribution of the sub-electrodes.

[0022] Preferably, a wire slot 103 is provided on the sub-electrode connection surface of the main electrode. The wire slot is preferably arranged along the line connecting the center points of the various connection structures. The wire slot is used to accommodate the connecting wires of the current sensor and the conductive connecting wires of the electrode for centralized enclosure. A wire slot cover 106 is provided on the wire slot to enclose the connecting wires of the current sensor within the wire slot and prevent the connecting wires from being exposed. The wire slot cover is fixedly connected to the wire slot, for example, by plugging, snapping, or bonding. The wire slot cover is fixedly connected to the wire slot to prevent it from falling off during use and also prevent the connecting wires from falling out of the wire slot.

[0023] Preferably, the main electrode has a rectangular structure as a whole, with four corners being notched. At least one notched corner 104 is connected to the wire accommodating groove to form a connecting groove 105. In this way, the connecting wire can be smoothly led out from the connecting groove 105 and connected to the power supply. The wire accommodating groove is set along the four sides of the rectangle.

[0024] In a preferred embodiment, a positioning groove is provided on the sub-electrode connection surface for positioning and installing the sub-electrode. The connection structure is located within the positioning groove, and one or a group of connection structures corresponds to one positioning groove. For example, when a connection hole or threaded hole is used as the connection structure, one or more threaded holes or connection holes are located within the positioning groove, depending on the specific connection structure on the sub-electrode. When the sub-electrode and the main electrode are fixedly connected, the positioning groove provides a positioning position to facilitate the installation of the main electrode and the sub-electrode. In addition, it can also ensure that the connection between the sub-electrode and the main electrode is stable and reliable, and it is not easy for the two to be misaligned. The wire accommodating groove 103 is located in the area outside the positioning groove. The wire accommodating groove is annular and is located inside or outside the ring formed by the positioning groove.

[0025] The geometric shape of the main electrode is designed according to actual needs to arrange the various sub-electrodes for welding. For example, when using a projection welding machine to weld workpieces with relatively strict requirements such as waveguides, the workpiece as a whole is a rectangular structure, and 24 convex points are stamped on the four sides of the workpiece as welding points. Each side has 6 points. The customer requires that the welding points of every two adjacent points must be firm, and the welding points at the four corners must be firm, and no cold welding is allowed. Therefore, the main electrode is set to be rectangular, and the connection structure is a connection hole or a threaded connection hole. Multiple connection holes are set along the four sides of the total motor, and the position of the connection hole at each side is fixed. Corresponding to the positions of the welding points, there are also 6 of them, so that the sub-electrodes correspond to their respective welding points. A positioning groove is provided on the sub-electrode connection surface of the main electrode corresponding to the position of each connection hole. The length direction of the positioning groove is parallel to the length direction of the edge of the main electrode, and the length directions of the positioning grooves on adjacent sides are perpendicular to each other. There are notches at the four corners, and the wire accommodating groove is provided in the area where the inner side of the notch is located. The wire accommodating groove has an annular structure, and a connecting groove is provided at at least one notch position. It is inclined relative to the wire accommodating groove. The connecting groove is inclined, and it is best that the inclination angle is less than 45 degrees, so that the corner of the connecting line here is smoother.

Claims

1. A main electrode for a shunt-type electrode device for projection welding, characterized in that: The main electrode body comprises a sub-electrode connecting surface for conductive connection with the sub-electrode, and at least two connecting structures for conductive connection with the sub-electrode are arranged on the sub-electrode connecting surface, each connecting structure is used to connect one sub-electrode.

2. The main electrode for the shunt-type electrode device for projection welding according to claim 1, characterized in that: A wire accommodating groove is arranged on the sub-electrode connection surface, and the wire accommodating groove is used to accommodate the conductive connecting wire, and the wire accommodating groove is located in the area outside the positioning groove.

3. The main electrode for the shunt-type electrode device for projection welding according to claim 1, characterized in that: The connection structure is one or a group of connection holes or connection threaded holes, or a sinker.

4. The main electrode for the shunt-type electrode device for projection welding according to claim 1, characterized in that: A wire accommodating groove is arranged on the sub-electrode connection surface, and the wire accommodating groove is used to accommodate the conductive connecting wire.

5. The main electrode for the shunt-type electrode device for projection welding according to claim 4, characterized in that: The wire accommodating groove is arranged along the direction of the line connecting the center lines of the connecting structure.

6. The main electrode for the shunt-type electrode device for projection welding according to claim 4, characterized in that: A wire trough cover is provided on the wire trough, and the wire trough cover is fixedly connected to the wire trough.

7. The main electrode for the shunt-type electrode device for projection welding according to claim 1, characterized in that: A positioning groove is arranged on the connecting surface of the sub-electrode at a position corresponding to the connecting structure, and the connecting structure is located in the positioning groove.

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