Patent ID: 11865736
Assignee: CIVIL AVIATION FLIGHT UNIVERSITY OF CHINA
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 6:
7. The perforating device for thermoplastic plates according to claim 1, wherein the heating system comprises a distance adjustment part comprising two hexagonal frames, each of the two hexagonal frames respectively arranged on the two sliding rails in the same way, each of the two hexagonal frames comprising two parallel edges respectively parallel to the two sliding rails, and four side edges formed between the two parallel edges, the two parallel edges having the same length, and the four side edges having the same length, all the two parallel edges and the four side edges of each of the two hexagonal frames hinged, and a sliding hinged point that is formed between two adjacent edges of the four side edges slidably arranged on a corresponding sliding rail of the two sliding rails, and a lock catch arranged on the corresponding sliding rail of the two sliding rails; and wherein each of the two hexagonal frames further comprises two limit sliding rails perpendicular to the two sliding rails, a limit sliding chute arranged on two opposite ends of each of the two limit sliding rails, each of the four side edges is hinged with one of the two adjacently parallel edges by a hinged point, all the hinged points between the two parallel edges and the four side edges are located in the limit sliding chute, the two hexagonal frames are connected by a connecting rod, the two ends of the connecting rod are fixed with two corresponding hinged points respectively in the same position of the two hexagonal frames, and the connecting rod is perpendicular to the plane of hexagon in the two hexagonal frames, one of the two heating parts is fixed on the upper parallel edges arranged on the two hexagonal frames, the other of the two heating parts is fixed on the lower parallel edges arranged on the two hexagonal frames.