目的 为了提高螺旋护套缠绕效率，降低劳动强度，提出一种螺旋护套自动缠绕装置。方法 该装置由夹持旋转机构和导向机构组成。夹持机构通过气动控制实现管段的固定，并通过同轴传动实现管段旋转。螺旋护套在导向机构的限制作用下，通过螺旋传动的方式，完成自动缠绕。采用有限元分析法对管段在夹爪夹持过程中的变形进行分析，为夹持机构对管段夹持是否造成损伤提供依据。结果 测试结果表明，装置可完成直径6～14 mm直管段的螺旋护套的缠绕，在保障缠绕质量的情况下，缠绕效率较人工提高了7.2倍。结论 此装置的设计实现了在直管段螺旋护套的自动缠绕，降低了劳动成本，提高了螺旋护套缠绕的生产效率。

The work aims to propose an automatic winding device for the spiral sheath, in order to improve the winding efficiency of the spiral sheath and reduce the labor intensity. The proposed device consisted of a clamping rotation mechanism and a guide mechanism. The clamping mechanism realized the fixing of the pipe segment through pneumatic control and the rotation of the pipe segment through coaxial transmission. Under the restriction of the guide mechanism, the spiral sheath completed the automatic winding by means of spiral transmission. The finite element analysis method was used to analyze the deformation of the pipe segment during the clamping of the jaws, which provided a basis for whether the clamping mechanism caused damage to the pipe segment. The test results showed that the device could complete the winding of the spiral sheath for the straight pipe segment with a diameter of 6-14 mm. Under the condition of ensuring the winding quality, the winding efficiency was increased by 7.2 times compared with the manual winding. The design of this device realizes the automatic winding of the spiral sheath in the straight pipe segment, reduces labor costs and improves the production efficiency of spiral sheath winding.