CN-224209246-U - Blowing cavity and welding protection device

Abstract

The utility model provides a blowing cavity and a welding protection device, and relates to the technical field of welding tools. The blowing cavity comprises a first wall surface and a second wall surface. The air blowing cavity is provided with a plurality of air flow channels and a plurality of welding channels, the air flow channels are located between the first wall surface and the second wall surface, the welding channels penetrate through the first wall surface and the second wall surface, the first wall surface is provided with a plurality of air inlets, the air inlets are communicated with the air flow channels in a one-to-one correspondence mode, the welding channels are provided with air outlets, and the air outlets are communicated with the air flow channels. Therefore, in the welding process, a plurality of electromagnetic valves can be controlled to input protective gas to different air inlet holes respectively according to the welding condition, the protective gas flows out of the air outlet holes along the air flow channel and finally blows into the welding channel which is in welding operation, so that a plurality of welding channels can blow synchronously or successively according to the process requirements, and the welding efficiency is effectively improved.

Inventors

• FU WENXI

Assignees

• 广州锐航精密科技有限公司
• 广州众山新材料股份有限公司

Dates

Publication Date

20260508

Application Date

20250429

Claims (10)

1. 1. The blowing cavity is characterized by comprising a first wall surface and a second wall surface; the air blowing cavity is provided with a plurality of air flow channels and a plurality of welding channels, the air flow channels are located between the first wall surface and the second wall surface, the welding channels penetrate through the first wall surface and the second wall surface, the first wall surface is provided with a plurality of air inlets, the air inlets are communicated with the air flow channels in a one-to-one correspondence mode, and the welding channels are provided with air outlets which are communicated with the air flow channels.
2. 2. The blowing cavity according to claim 1, wherein the number of the air outlet holes is at least two, the at least two air outlet holes are oppositely arranged in the welding channel, one end of the air flow channel is communicated with one of the air inlet holes, and the other end of the air flow channel is in a branch structure so as to be respectively communicated with the at least two air outlet holes.
3. 3. The blowing chamber according to claim 2, wherein the air outlet hole includes at least two first air blowing holes, the welding channel is in a strip shape in a contour on a plane where the first wall surface or the second wall surface is located, and the at least two first air blowing holes are oppositely disposed at two sides of the welding channel in a length direction.
4. 4. A blowing chamber according to claim 3, wherein said air outlet holes comprise at least two second air blowing holes, the contour of said welding channel on the plane of said first wall surface or said second wall surface is in the shape of a bar, and at least two of said second air blowing holes are provided on both sides of at least one of said welding channels in the width direction.
5. 5. The blowing chamber of claim 4 wherein a divider is further provided within the second blowing aperture, the divider dividing the second blowing aperture into two holes.
6. 6. The blowing chamber according to claim 4, wherein said welding channel provided with said second blowing holes communicates with at least two of said gas flow channels.
7. 7. The blowing chamber according to any one of claims 1 to 6, wherein the air outlet holes are provided obliquely in a direction toward the second wall surface.
8. 8. The blowing chamber of claim 1 further comprising a locating post, wherein the second wall is provided with a mounting hole, and wherein the locating post is disposed in the mounting hole and extends out of the second wall.
9. 9. A welding protection device, which is characterized by comprising a main pipe, a converging piece, a plurality of electromagnetic valves, a plurality of air inlet pipes and the air blowing cavity as claimed in any one of claims 1-8, wherein the main pipe is connected with the converging piece and is used for inputting protective gas into the converging piece, the electromagnetic valves are arranged on the converging piece, one ends of the air inlet pipes are connected with the air inlet holes in a one-to-one correspondence manner, and the other ends of the air inlet pipes are connected with the electromagnetic valves in a one-to-one correspondence manner.
10. 10. The welding protection device of claim 9, further comprising a base for placing a piece to be welded, the base being provided with a locating hole, the blowing cavity further comprising a locating post, the second wall being provided with a mounting hole, the locating post being disposed in the mounting hole and extending out of the second wall to be embedded in the locating hole.

Description

Blowing cavity and welding protection device Technical Field The utility model relates to the technical field of welding tools, in particular to a blowing cavity and a welding protection device. Background During the welding technique of workpieces, an inert gas is generally used to protect the weld area from oxidation, thereby ensuring that the quality of the weld is not affected by oxygen during the welding process. Currently, most manufacturers achieve this by blowing the weld area directly with a universal blow head. However, there are significant technical limitations to this approach. Because the universal blowing head is large in volume, multi-point simultaneous blowing cannot be realized, and the blowing positions need to be frequently adjusted when different areas are welded. Secondly, after the welding area is replaced, the deviation of the blowing angle and the blowing distance is easily caused by manually adjusting the blowing position, so that the instability of the welding process is further increased. The technical defects not only reduce the welding efficiency, but also obviously improve the defective rate, and have adverse effects on welding quality and production cost. Disclosure of utility model The utility model aims to provide a blowing cavity and a welding protection device, which can realize multipoint accurate blowing and reduce adjustment time so as to improve welding stability, thereby meeting the requirements of modern industry on high-precision welding technology. Embodiments of the present utility model are implemented as follows: In a first aspect, the present utility model provides an air-blowing chamber, the air-blowing chamber comprising a first wall and a second wall; the air blowing cavity is provided with a plurality of air flow channels and a plurality of welding channels, the air flow channels are located between the first wall surface and the second wall surface, the welding channels penetrate through the first wall surface and the second wall surface, the first wall surface is provided with a plurality of air inlets, the air inlets are communicated with the air flow channels in a one-to-one correspondence mode, and the welding channels are provided with air outlets which are communicated with the air flow channels. In an alternative embodiment, the number of the air outlet holes is at least two, the at least two air outlet holes are oppositely arranged in the welding channel, one end of the air flow channel is communicated with one of the air inlet holes, and the other end of the air flow channel is in a branch structure so as to be respectively communicated with the at least two air outlet holes. In an optional embodiment, the air outlet hole includes at least two first air blowing holes, the outline of the welding channel on the plane where the first wall surface or the second wall surface is located is in a strip shape, and the at least two first air blowing holes are oppositely arranged at two sides of the welding channel in the length direction. In an alternative embodiment, the air outlet hole includes at least two second air blowing holes, the outline of the welding channel on the plane where the first wall surface or the second wall surface is located is in a strip shape, and at least two second air blowing holes are arranged on two sides of at least one welding channel in the width direction. In an alternative embodiment, a partition is further provided in the second gas-blowing hole, the partition dividing the second gas-blowing hole into two holes. In an alternative embodiment, the welding channel provided with the second gas vent communicates with at least two of the gas flow channels. In an alternative embodiment, the air outlet holes are arranged obliquely in a direction towards the second wall surface. In an alternative embodiment, the air blowing cavity further includes a positioning column, the second wall surface is provided with a mounting hole, and the positioning column is disposed in the mounting hole and extends out of the second wall surface. In a second aspect, the present utility model provides a welding protection device, including a main pipe, a confluence member, a plurality of electromagnetic valves, a plurality of air inlet pipes, and a blowing cavity according to any one of the foregoing embodiments, where the main pipe is connected to the confluence member and is used for inputting protection gas into the confluence member, the plurality of electromagnetic valves are disposed on the confluence member, one ends of the plurality of air inlet pipes are connected to the plurality of air inlet pipes in a one-to-one correspondence manner, and the other ends of the plurality of air inlet pipes are connected to the plurality of electromagnetic valves in a one-to-one correspondence manner. In an optional embodiment, the welding protection device further comprises a base, the base is used for placing a piece to be welded, the base is provided wi