Welding joint problem handling: lens damage

表现：

①开始出光很强，慢慢变弱/光弱，导致无法熔丝

②铜嘴处有火花

Performance:

(1) the light is very strong at first, and it gradually becomes weak/weak, which leads to the failure to fuse.

(2) there is a spark at the copper nozzle.

原因分析：

  通常情况下为焊接枪镜片损坏，包含不限于保护镜，聚焦，准直，反射。其中任意一个或多个损坏都可能造成这种情况出现

  先更换保护镜并看下聚焦，再去检查反射和准直，更换损坏的镜片即可

  关于铜嘴处有火花可能是焦点问题，应先排除

  另外查看激光光纤头部分是否有脏污或者损坏

Cause analysis:

Usually, the welding gun lens is damaged, including but not limited to protective mirror, focusing, collimation and reflection. Any one or more of them may cause this situation.

Replace the protective lens and look at the focus first, then check the reflection and collimation, and replace the damaged lens.

Spark at the copper nozzle may be the focus problem, which should be ruled out first.

In addition, check whether the laser fiber head part is dirty or damaged.

镜片的损坏解析：

1.损坏的分类：干扰导致的电机摆动异常，或者红光太偏未调整，一般情况下密封圈会一起烧坏   

2.平台镜片的凸面损坏：一般常见于污染，如更换时未防护，形态为点状黑色斑点

3.平台镜片的平面损坏：由于激光漫反射，多数为反光造成，在镜片上形成了焦点，烧坏镀膜，形态为白色斑点。凸面也有这种形态，形成原理一致

4.保护镜的损坏一般是反渣和更换时污染

5.因激光器高斯光束太尖导致出光异常，这种一般是在中间突然出现一个白点，任意镜片，居中

Analysis of lens damage;

1. Classification of damage: the motor swings abnormally due to interference, or the red light is too biased to be adjusted, and the sealing ring will burn out together in general.

2. The convex surface of the platform lens is damaged: it is generally common in pollution. If it is not protected during replacement, it is in the form of black spots.

3. Plane damage of platform lens: Due to laser diffuse reflection, most of them are caused by reflection, which forms a focus on the lens, burns the coating and takes the form of white spots. The convex surface also has this form, and the formation principle is consistent.

4. The damage of the protective mirror is generally anti-slag and pollution during replacement.

5. Because the Gaussian beam of the laser is too sharp, the light output is abnormal. Generally, a white spot suddenly appears in the middle, and any lens is centered.

故障处理：

  更换受损的镜片，更换方案请在结构安装里面查询

Troubleshooting:

Replace the damaged lens. Please check the replacement plan in the structural installation.

后续如何避免：

在手持焊接中，更换频率最高的就是镜片相关，针对损坏的原因，做一下的预防措施

1.使用原厂镜片，客户使用网上采购的往往不能保证透光率

2.更换时注意防污染

3.手法尽量不要垂直焊接，尤其在焊接高反材料时

4.保护镜损坏：预防措施‍

5‍.及时更换受损的保护镜

6.预防干扰，有效接地

How to avoid it in the future:

In hand-held welding, the most frequent replacement is related to lenses. In view of the causes of damage, take preventive measures.

1. Using the original lens, customers often can't guarantee the light transmittance when purchasing online.

2. Pay attention to pollution prevention when replacing.

3. Try not to weld vertically, especially when welding high reflection materials.

4. Protective glasses are damaged: preventive measures

5. Replace the damaged protective glasses in time.

6. Prevent interference and effectively ground.