Grounding electrode device for vehicle body welding

Abstract

The utility model discloses a grounding electrode device for vehicle body welding. The grounding electrode device comprises a mounting plate, a telescopic piece, a base, a connecting rod, an electrode tip, an elastic piece and a conductive connecting piece. The electrode tip is driven by the telescopic piece to stretch out, the electrode tip makes contact with the vehicle body, the electrode tip is movably connected with the connecting rod, the posture of the electrode tip can be adjusted, then the elastic piece drives the electrode tip to be pressed on the vehicle body, and therefore the electrode tip can be automatically attached to the metal plate; therefore, poor contact between the electrode and the automobile body metal plate is avoided, and installation and debugging efficiency and compatibility are improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle manufacturing, and in particular to a grounding electrode device for vehicle body welding. Background Art

[0002] When a car is welded and manufactured, it is necessary to weld each sub-assembly at each workstation on the main line and weld other small parts on the body in white. After welding, the body in white needs to be transported to the next workstation. When welding, the body in white needs to be grounded through the automatic quick connection between the grounding electrode and the body to achieve welding current grounding. When the body in white is transported, the grounding electrode needs to automatically disconnect from the body.

[0003] Due to the large welding current, the electrode head of the grounding electrode must have good contact with the car body. Therefore, during installation, the angle of the electrode needs to be adjusted according to the position of the car body so that the electrode head of the grounding electrode can have good contact with the car body sheet metal. The current grounding electrode electrode heads used in automobile welding workshops cannot be adjusted at multiple angles. During installation, the position of the grounding electrode equipment needs to be adjusted according to the position of the car body so that the surface of the electrode head can have good contact with the car body sheet metal. Installation and debugging are extremely time-consuming, and when the car model is changed, it needs to be adjusted according to the new car insurance sheet metal structure, and the compatibility is poor. Utility Model Content

[0004] The embodiment of the present application provides a grounding electrode device for vehicle body welding, which can avoid poor contact between the electrode and the vehicle body sheet metal and has good flexibility.

[0005] The present application discloses a grounding electrode device for car body welding, comprising a mounting plate, a telescopic member, a base, a connecting rod, an electrode head, an elastic member and a conductive connecting member; the mounting plate is arranged on the telescopic end of the telescopic member, and the telescopic member can drive the mounting plate to move in a first direction; the base is arranged on the mounting plate; one end of the connecting rod is inserted into the base, and the other end of the connecting rod is movably connected to the electrode head, and the connecting rod can slide relative to the base in the first direction; the elastic member is arranged between the connecting rod and the base, and is used to drive the connecting rod to move in the first direction; one end of the conductive connecting member is electrically connected to the electrode head.

[0006] The grounding electrode device for body welding of the present application has at least the following beneficial effects:

[0007] The grounding electrode device of the present application includes a mounting plate, a telescopic part, a base, a connecting rod, an electrode head, an elastic part and a conductive connecting part; in the present application, the electrode head is extended by the telescopic part, the electrode head contacts the vehicle body, and the electrode head and the connecting rod are movably connected, so that the electrode head can adjust its own posture, and then the elastic part drives the electrode head to be pressed against the vehicle body, so that the electrode head can automatically fit the sheet metal, thereby avoiding poor contact between the electrode and the vehicle body sheet metal, and improving the installation and debugging efficiency and compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0009] Figure 1 is a schematic structural diagram of a grounding electrode device according to an embodiment of the present application;

[0010] Figure 2 It is a vertical cross-section of the grounding electrode device;

[0011] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0012] Figure 4 is a partial perspective view of the grounding electrode device;

[0013] Description of the reference numerals is as follows:

[0014] 1. Mounting plate, 2. Telescopic member, 3. Base, 31. Base body, 311. Mounting bolt, 32. Mounting sleeve, 33. Adjusting nut, 4. Connecting rod, 5. Electrode head, 51. Contact protrusion, 6. Elastic member, 7. Conductive connecting member, 71. Clamping end, 72. Connecting bolt, 8. Insulating pad, 9. Movable member, 91. First connecting pin, 92. Second connecting pin. DETAILED DESCRIPTION

[0015] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0016] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0017] like Figures 1 to 4 As shown, an embodiment of the present application discloses a grounding electrode device for car body welding, which includes a mounting plate 1, a telescopic member 2, a base 3, a connecting rod 4, an electrode head 5, an elastic member 6, a conductive connecting member 7, an insulating pad 8 and a movable member 9.

[0018] like Figure 1 As shown, the mounting plate 1 can provide a mounting position for the base 3 , and the mounting plate 1 can be a double-layer structure or a single-layer structure. A second mounting hole is provided on the mounting plate 1 to facilitate the installation of the base 3 .

[0019] like Figure 1 As shown, the telescopic member 2 can actively extend its length, thereby driving the mounting plate 1 to adjust its position in a first direction, wherein the first direction in the embodiment of the present application is configured as a height direction. The telescopic end of the telescopic member 2 is connected to the lower surface of the mounting plate 1, and the telescopic member 2 can be a telescopic cylinder or an electric push rod.

[0020] like Figure 1 As shown, the base 3 is installed on the side of the mounting plate 1 away from the telescopic member 2, wherein the connecting rod 4 is inserted on the base 3 along a first direction, and the connecting rod 4 can slide up and down relative to the base 3 in the first direction.

[0021] like Figure 2 As shown, in some preferred solutions, the base 3 includes a base body 31, a mounting sleeve 32 and an adjusting nut 33, and the structure is as follows:

[0022] The base body 31 is provided with a first mounting hole, and the mounting bolt 311 passes through the first mounting hole and the second mounting hole in sequence, so that the base body 31 is fixedly mounted on the mounting plate 1, and the mounting bolt 311 (the mounting bolt 311 is as shown in FIG. Figure 1The connection method shown in the figure is easy to disassemble. The base body 31 is recessed downward along the first direction to form a center hole, and the adjusting nut 33 is fixedly arranged on the upper surface of the base body 31, and the adjusting nut 33 is arranged coaxially with the center hole; at least part of the mounting sleeve 32 is coaxially inserted in the center hole, and the mounting sleeve 32 is provided with an external thread, and the mounting sleeve 32 is threadedly connected with the adjusting nut 33 through the external thread. When installing, it is only necessary to thread the mounting sleeve 32 onto the adjusting nut 33. As the thread of the mounting sleeve 32 is screwed in, the depth of the mounting sleeve 32 inserted in the center hole can be controlled, so that the position of the connecting rod 4 can be flexibly adjusted.

[0023] like Figure 2 As shown, in some preferred embodiments, an insulating pad 8 is disposed between the lower surface of the base body 31 and the upper surface of the mounting plate 1 , and the insulating pad 8 is used to prevent the device from being electrified during use to ensure safety.

[0024] The connecting rod 4 is coaxially inserted into the mounting sleeve 32 , and the connecting rod 4 can slide up and down relative to the mounting sleeve 32 , and one end of the connecting rod 4 away from the mounting sleeve 32 is movably connected to the electrode head 5 (universal connection).

[0025] like Figure 3 and Figure 4 As shown, in some preferred schemes, the connecting rod 4 and the electrode head 5 are universally connected through the movable part 9, and the specific connection method is: a first connecting pin 91 is provided on the connecting rod 4, and the movable part 9 is rotatably connected to the first connecting pin 91; a second connecting pin 92 is provided on the electrode head 5, and the movable part 9 is rotatably connected to the second connecting pin 92, and the axial directions of the first connecting pin 91 and the second connecting pin 92 are perpendicular to each other, and further, the axial direction of the first connecting pin 91 and the axial direction of the second connecting pin 92 intersect vertically in a horizontal plane.

[0026] like Figure 3 As shown, the elastic member 6 is arranged between the connecting rod 4 and the mounting sleeve 32, and the expansion and contraction direction of the elastic member 6 is configured as the first direction. The elastic member 6 can give the connecting rod 4 an elastic force upward along the first direction, thereby pressing the electrode head 5 at the end position of the connecting rod 4 against the vehicle body. In some preferred schemes, the elastic member 6 is configured as a spring, the spring is coaxially sleeved on the connecting rod 4, and the spring is located in the mounting sleeve 32, the lower end of the spring abuts against the bottom of the mounting sleeve 32, and the upper end of the spring abuts against the axial shoulder surface of the connecting rod 4.

[0027] like Figure 3 and Figure 4As shown, a plurality of contact protrusions 51 are evenly arranged in an array on one side of the electrode head 5 away from the connecting rod 4 along the first direction (i.e., the upper surface of the electrode head 5), and the plurality of contact protrusions 51 form a tooth-like structure, and the electrode head 5 contacts the vehicle body through the plurality of contact protrusions 51. It should be noted that the plurality of contact protrusions 51 are designed to make the contact surface of the electrode head 5 in a point contact state, which has a large point contact pressure and is conducive to electrical conduction.

[0028] like Figure 4 As shown, one end of the conductive connector 7 is electrically connected to the electrode head 5, and the conductive connector 7 is used for conducting electricity. In some preferred schemes, one end of the conductive connector 7 is configured as a flat clamping end 71, a first connection hole is provided on the clamping end 71, a second connection hole is provided on the electrode head 5, and a connecting bolt 72 passes through the first connection hole and the second connection hole in sequence, thereby being able to clamp the clamping end of the conductive connector 7 on the horizontal side of the electrode head 5. The conductive connector 7 can be a conductive structure such as a wire.

[0029] A working mode of the grounding electrode device of the embodiment of the present application is as follows:

[0030] The telescopic member 2 pushes the electrode head 5 to move linearly along the first direction, which can realize the contact and separation between the electrode head 5 and the vehicle body. After the electrode head 5 contacts the vehicle body, the pressure of the electrode head 5 is maintained by the elastic member 6, and the electrode head 5 is closely contacted with the vehicle body under the pressure of the elastic member 6; at the same time, the universal rotation function of the movable member 9 is used to make the electrode head 5 automatically fit with the vehicle body, thereby avoiding poor contact between the electrode and the vehicle body, and improving the installation and debugging efficiency and compatibility. Among them, the grounding electrode device of the embodiment of the present application has a simple structure, reduces the installation and debugging intensity, saves time, and can improve production efficiency.

[0031] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A grounding electrode device for body welding, characterized in that: It comprises a mounting plate (1), a telescopic member (2), a base (3), a connecting rod (4), an electrode head (5), an elastic member (6) and a conductive connecting member (7); The mounting plate (1) is arranged on the telescopic end of the telescopic member (2), and the telescopic member (2) can drive the mounting plate (1) to move in a first direction; the base (3) is arranged on the mounting plate (1); one end of the connecting rod (4) is inserted into the base (3), the other end of the connecting rod (4) is movably connected to the electrode head (5), and the connecting rod (4) can slide in the first direction relative to the base (3); the elastic member (6) is arranged between the connecting rod (4) and the base (3), and is used to drive the connecting rod (4) to move in the first direction; one end of the conductive connecting member (7) is electrically connected to the electrode head (5).

2. The grounding electrode device for body welding according to claim 1, characterized in that: The base (3) comprises a base body (31), a mounting sleeve (32) and an adjusting nut (33); The base body (31) is provided with a center hole; the adjusting nut (33) is arranged on the base body (31) and is coaxial with the center hole; at least a portion of the mounting sleeve (32) is coaxially arranged in the center hole, and the mounting sleeve (32) and the adjusting nut (33) are threadedly connected; the connecting rod (4) is coaxially inserted in the mounting sleeve (32), the elastic member (6) is arranged between the connecting rod (4) and the mounting sleeve (32), and the telescopic direction of the elastic member (6) is configured as a first direction.

3. The grounding electrode device for body welding according to claim 2, characterized in that: The base body (31) is provided with a first mounting hole, the mounting plate (1) is provided with a second mounting hole, and the base body (31) is mounted on the mounting plate (1) by means of mounting bolts (311).

4. The grounding electrode device for vehicle body welding according to claim 3, characterized in that: Along the first direction, an insulating pad (8) is provided between the base body (31) and the mounting plate (1).

5. The grounding electrode device for body welding according to any one of claims 2 to 4, characterized in that: The elastic member (6) is configured as a spring, and the spring is coaxially sleeved on the connecting rod (4).

6. The grounding electrode device for body welding according to claim 1, characterized in that: The connecting rod (4) and the electrode head (5) are universally connected via a movable part (9); The connecting rod (4) is provided with a first connecting pin (91), and the movable part (9) is rotatably connected to the first connecting pin (91); the electrode head (5) is provided with a second connecting pin (92), and the movable part (9) is rotatably connected to the second connecting pin (92), and the axial directions of the first connecting pin (91) and the second connecting pin (92) are perpendicular to each other.

7. The grounding electrode device for body welding according to any one of claims 1 to 4, characterized in that: A plurality of contact protrusions (51) are provided on a side of the electrode head (5) facing away from the connecting rod (4) along the first direction.

8. The grounding electrode device for vehicle body welding according to claim 7, characterized in that: One end of the conductive connecting piece (7) is configured as a clamping end (71), a first connecting hole is provided on the clamping end (71), a second connecting hole is provided on the electrode head (5), and a connecting bolt (72) presses the clamping end (71) onto the electrode head (5) through the first connecting hole and the second connecting hole.

9. The grounding electrode device for body welding according to claim 1, characterized in that: The telescopic member (2) is configured as a telescopic cylinder or an electric push rod.

Images