Automobile body-in-white projection welding electrode overheating protection device

Abstract

The utility model discloses an automobile body-in-white projection welding electrode overheating protection device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a mounting column, the top of the mounting column is provided with an electrode assembly, the mounting column is fixedly sleeved with a bearing, one side of the bearing is fixedly connected with a connecting block, and the connecting block is fixedly connected with the bottom plate. A vertical plate is fixedly connected to one end of the connecting block, a water tank is fixedly connected to the outer wall of one side of the vertical plate, an infusion pump is arranged at the top of the water tank, an infusion pipe is fixedly communicated between the infusion pump and the water tank, and a conveying pipe is fixedly connected to one end of the infusion pump; one end of the conveying pipe penetrates through the top end of the vertical plate and is fixedly connected with a spray head, one side of the bottom end of the vertical plate is fixedly connected with a supporting block, and one end of the supporting block is fixedly connected with a gear ring. And therefore, the electrode cooling device is suitable for popularization and application.

Description

Technical Field

[0001] The utility model relates to the field of welding protection related products, in particular to an overheating protection device for projection welding electrodes of an automobile body-in-white. Background Art

[0002] In the manufacturing process of automobile parts, many products are welded using the gas projection welding process. During the projection welding process, a large current will pass through the electrode and the product, melting the product's bumps and completing the overall weld. During the working process of the projection welding electrode, the high current passing through the electrode will cause the electrode to heat up, and the electrode will become soft after heating. This situation will have a significant impact on the product's welding strength and the service life of the electrode. Therefore, people have designed overheat protection devices to protect the projection welding electrode.

[0003] However, the existing overheat protection device is provided with a water spray port on the electrode cap of the projection welding electrode. When spraying water for cooling, it can only spray water on one side of the electrode and cannot spray water in all directions, which is defective. Utility Model Content

[0004] The purpose of the utility model is to provide an overheating protection device for projection welding electrodes of an automobile body-in-white, so as to solve the problems raised in the above-mentioned background technology.

[0005] The top of the base plate is fixedly provided with a supporting plate, and the top of the supporting plate is fixedly provided with a toothed plate, and the toothed plate is sleeved on the top of the base plate, and a toothed plate is fixedly provided with a toothed plate.

[0006] Preferably, the mounting column is a hollow structure, the top end of the mounting column is fixedly connected to the electrode assembly via two symmetrically arranged pulling plates, and a drainage pipe is fixedly inserted into one side of the bottom end of the mounting column.

[0007] Preferably, a water injection pipe is fixedly inserted into the top of the water tank.

[0008] Preferably, the motor is a servo motor.

[0009] Preferably, the nozzle is provided with a plurality of spray holes, and the plurality of spray holes are arranged in a ring array.

[0010] Preferably, the bearing is a ball bearing.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The overheating protection device for the projection welding electrode of the automobile body in white can extract cooling water through the extraction pipe by controlling the extraction pump, and then transport the cooling water to the nozzle through the delivery pipe for spraying to cool the electrode assembly. The motor can be controlled to start during the water spray cooling operation. The motor will then cause the gear to rotate, and when the gear rotates, the gear ring will engage, thereby enabling the support block to drive the vertical plate to rotate. The vertical plate and the bearing can be fixed by the connecting block to ensure that the vertical plate rotates slowly around the mounting column. When the vertical plate rotates, the nozzle rotates around the electrode assembly. The utility model can ensure that the nozzle covers the electrode assembly in all directions when spraying water through the setting of the rotating assembly, thereby increasing the cooling efficiency of the electrode, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of an overheating protection device for projection welding electrodes of an automobile body-in-white according to the present invention;

[0014] Figure 2 This is a schematic diagram of the meshing of the gear and the gear ring of an automobile body-in-white projection welding electrode overheating protection device of the present invention;

[0015] Figure 3 The utility model is a structural schematic diagram of the traction plate of an overheating protection device for projection welding electrodes of an automobile body in white.

[0016] In the figure: 1. Base plate; 2. Mounting column; 3. Electrode assembly; 4. Bearing; 5. Connecting block; 6. Vertical plate; 7. Water tank; 8. Liquid extraction pump; 9. Liquid extraction pipe; 10. Delivery pipe; 11. Nozzle; 12. Support block; 13. Gear ring; 14. Motor; 15. Gear; 16. Traction plate; 17. Drain pipe; 18. Water injection pipe. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0020] See also Figure 1-3 , the utility model provides an embodiment: an overheating protection device for projection welding electrodes of an automobile body in white, comprising a base plate 1, a mounting column 2 fixedly connected to the top of the base plate 1, an electrode assembly 3 installed on the top of the mounting column 2, a bearing 4 fixedly sleeved on the mounting column 2, a connecting block 5 fixedly connected to one side of the bearing 4, one end of the connecting block 5 fixedly connected to a vertical plate 6, a water tank 7 fixedly connected to the outer wall of one side of the vertical plate 6, a liquid pump 8 is provided on the top of the water tank 7, a liquid pumping pipe 9 is fixedly connected between the liquid pump 8 and the water tank 7, one end of the liquid pump 8 is fixedly connected to a delivery pipe 10, one end of the delivery pipe 10 passes through the top of the vertical plate 6 and is fixedly connected to a nozzle 11, one side of the bottom end of the vertical plate 6 is fixedly connected to a support block 12, and one end of the support block 12 is fixedly connected to a gear ring 13. The gear ring 13 is sleeved on the mounting column 2. A motor 14 is fixedly connected to the top of one end of the base plate 1. The output end of the motor 14 extends into the gear ring 13 and is fixedly connected to a gear 15 meshing with the gear ring 13. Specifically, the liquid pump 8 is controlled to extract the cooling water through the liquid extraction pipe 9, and then transported to the nozzle 11 through the delivery pipe 10 to spray out to cool the electrode assembly 3. During the water spray cooling operation, the motor 14 can be controlled to start. The motor 14 will then cause the gear 15 to rotate. When the gear 15 rotates, it will engage the gear ring 13 and then realize that the support block 12 drives the vertical plate 6 to rotate. The vertical plate 6 and the bearing 4 can be fixed by the connecting block 5 to ensure that the vertical plate 6 rotates slowly around the mounting column 2. When the vertical plate 6 rotates, the nozzle 11 rotates around the electrode assembly 3.

[0021] In this embodiment, the mounting column 2 is a hollow structure, and the top of the mounting column 2 is fixedly connected to the electrode assembly 3 through two symmetrically arranged traction plates 16. A drainage pipe 17 is fixedly inserted on one side of the bottom end of the mounting column 2, and excess water of the spray cooling water can fall into the mounting column 2 and be conveniently discharged through the drainage pipe 17; a water injection pipe 18 is fixedly inserted at the top of the water tank 7; the motor 14 is a servo motor; a plurality of spray holes are provided on the nozzle 11, and the plurality of spray holes are arranged in a ring array to achieve pressurized spraying; the bearing 4 is a ball bearing.

[0022] Working principle: First, the liquid extraction pump 8 is controlled to extract the cooling water through the liquid extraction pipe 9, and then the cooling water is delivered to the nozzle 11 through the delivery pipe 10 to be sprayed out to cool the electrode assembly 3. During the water spray cooling operation, the motor 14 can be controlled to start. The motor 14 will then cause the gear 15 to rotate. When the gear 15 rotates, the gear ring 13 will be engaged, thereby enabling the support block 12 to drive the vertical plate 6 to rotate. The vertical plate 6 and the bearing 4 can be fixed through the connecting block 5 to ensure that the vertical plate 6 rotates slowly around the mounting column 2. When the vertical plate 6 rotates, the nozzle 11 rotates around the electrode assembly 3.

[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An overheat protection device for projection welding electrodes of an automobile body-in-white, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a mounting column (2), the top of the mounting column (2) is installed with an electrode assembly (3), the mounting column (2) is fixedly sleeved with a bearing (4), one side of the bearing (4) is fixedly connected to a connecting block (5), one end of the connecting block (5) is fixedly connected to a vertical plate (6), one side outer wall of the vertical plate (6) is fixedly connected to a water tank (7), a liquid pump (8) is provided on the top of the water tank (7), a liquid pumping pipe (9) is fixedly connected between the liquid pump (8) and the water tank (7), and the liquid pump (8) One end of the base plate (1) is fixedly connected to a delivery pipe (10), one end of the delivery pipe (10) passes through the top of the vertical plate (6) and is fixedly connected to a nozzle (11), one side of the bottom end of the vertical plate (6) is fixedly connected to a support block (12), one end of the support block (12) is fixedly connected to a gear ring (13), and the gear ring (13) is sleeved on the mounting column (2), and the top of one end of the base plate (1) is fixedly connected to a motor (14), and the output end of the motor (14) extends into the gear ring (13) and is fixedly connected to a gear (15) meshing with the gear ring (13).

2. The overheat protection device for projection welding electrodes of an automobile body-in-white according to claim 1, characterized in that: The mounting column (2) is a hollow structure, the top end of the mounting column (2) is fixedly connected to the electrode assembly (3) via two symmetrically arranged traction plates (16), and a drainage pipe (17) is fixedly inserted into one side of the bottom end of the mounting column (2).

3. The overheat protection device for projection welding electrodes of an automobile body-in-white according to claim 1, characterized in that: A water injection pipe (18) is fixedly inserted into the top end of the water tank (7).

4. The overheat protection device for projection welding electrodes of an automobile body-in-white according to claim 1, characterized in that: The motor (14) is a servo motor.

5. The overheat protection device for projection welding electrodes of an automobile body-in-white according to claim 1, characterized in that: The nozzle (11) is provided with a plurality of spray holes, and the plurality of spray holes are arranged in a ring array.

6. The overheat protection device for projection welding electrodes of an automobile body-in-white according to claim 1, characterized in that: The bearing (4) is a ball bearing.

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