Vacuum sealing type optical lens adjusting device

The invention provides a vacuum sealing type optical lens adjusting device, which is arranged on a matching device in a vacuum system, is used for mounting and adjusting an optical lens, and is characterized by comprising a lens mounting part which is used for mounting the optical lens and comprises a lens mounting plate and a fastener; the sealing and fixing part is used for mounting the lens mounting part on a matching device in a vacuum system, and comprises a flange main plate, and a perspective window and a sealing assembly which are arranged on the flange main plate; the adjusting part is used for adjusting the position and angle of the optical lens and comprises at least three adjusting screw rods and at least two tension springs, one end of each tension spring is connected with the lens mounting plate, the other end of each tension spring is connected with the flange main plate, the adjusting screw rods movably penetrate through the flange main plate, one end of each adjusting screw rod abuts against