Hollow body end clamp, punching device and punching method

Abstract

The invention discloses a hollow body end socket clamp, a punching device and a punching method. The hollow body end socket clamp comprises a clamp base, a positioning shaft and a clamping end cap, wherein the positioning shaft is rotatably arranged in the clamp base; a channel for penetrating arrangement of a drill bit is arranged in the positioning shaft; and one end of the clamping end cap is fixedly connected to the positioning shaft; and the other end of the clamping end cap is clamped on a hollow body end socket. The hollow body end socket clamp, the punching device and the punching method strengthen the pressure bearing capacity of the end sockets in the cutting and punching process, avoid the buckling deformation of a plastic shell caused by the end socket extruded by the drill bit, meanwhile realize the mechanized cutting and punching of the hollow body end socket, improve the stability and positional accuracy of the end socket in the cutting and punching process, ensure the consistency of the coaxiality, the opening depth and the chamfering angle of the end sockets of two ends of the hollow body after processing, meanwhile solve the burr problem caused by drilling and punching with a handgun, and improve the processing quality of the end sockets.

Description

technical field [0001] The invention relates to the technical field of hollow body manufacturing, in particular to a hollow body end clamp, a punching device and a punching method. Background technique [0002] During the blow molding process of the plastic shell, in order to ensure the reliability and compatibility of the two ends of the plastic shell in the subsequent assembly process, it is necessary to cut and punch the two ends of the plastic shell. In the prior art, the end is generally punched manually with a pistol drill, and then the hole is trimmed and deburred with a trimming knife. However, the trimming knife cannot completely remove the burr, and cannot guarantee the coaxiality of the openings at both ends, and cannot ensure the consistency of the depth and chamfering angle of the openings at both ends. In addition, since the plastic shell is hollow, when the end is punched, the end is squeezed by the drill bit. Due to the low rigidity of the plastic, the stren...

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Problems solved by technology

However, the trimming knife cannot completely remove the burr, and at the same time, it cannot guarantee the coaxiality of the openings at both ends, as well as the depth of the openings at both ends, and the consistency of the chamfering angle.

In addition, since the plastic shell is hollow, when the end is punched, the end is squeezed by the drill bit. Due to the low rigidity of the plastic, the strength of the end will be transmitted to the plastic shell, making the plastic shell Warpage occurs during drilling

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