Servo welder with cylinder protector

The utility model relates to a servo welder with cylinder protector, reach electrode stem (2) be connected with piston rod (11) of servo cylinder (1) including servo cylinder (1), electrode stem (2) set up in the top of servo cylinder (1), are equipped with the coolant liquid that is arranged in preventing electrode stem (2) on piston rod (11) and flow in servo cylinder (2) inside protection casing (3). Compared with the prior art, the utility model has the advantages of simple structure, low cost, safe and reliable, can prevent effectively that the cooling water from damaging the cylinder structure, can not produce the existing equipment and interfere. 本实用新型涉及一种带有气缸防护装置的伺服焊枪，包括伺服气缸(1)及与伺服气缸(1)的活塞杆(11)连接的电极杆(2)，电极杆(2)设置在伺服气缸(1)的上方，活塞杆(11)上设有用于防止电极杆(2)中的冷却液流入伺服气缸(2)内部的防护罩(3)。与现有技术相比，本实用新型具有结构简单、成本低廉、安全可靠、能够有效防止冷却水损坏气缸结构、不会对原有设备产生干涉等优点。