Electric permanent-magnet following clamp for delivery and its uses

Abstract

The present invention relates to one kind of electrically permanent magnetic servo fixture for transmission and its application. The fixture includes one fixture box comprising bottom plate, side plates and end plates, several groups of reversible magnets, exciting coils around each groups of reversible magnets, pole strips set over each groups of reversible magnets, NdFeB magnets with alternately arranged N poles and S poles embedded between pole strips, grained pole crowns set alternately over the pole strips, pneumatic dust removing pipeline inside the inner cavity, and guide grooves outside the side plates for plane strip and inclined strips separately. The present invention is used as the auxiliary fixture for fast fastening and releasing punched workpiece, and has high side force resistance, no obstruction stepped shift of long steel workpiece, precise workpiece location and high punched hole position prcision.

Description

technical field [0001] The invention belongs to the field of clamping tools for mechanical processing, and in particular relates to an electric permanent magnet accompanying clamp for transmission and an application thereof that can be positioned without hindrance during continuous stamping and feeding of long steel plates by a punching machine. Background technique [0002] At present, in the mechanical processing industry, the continuous punching of long steel plates is most common in automobile beams. Due to the limited capacity of the punching machine, the length of the punch group is generally within one meter, and for processing a 12-meter-long The automobile beam workpiece needs to be punched by multiple steps, but due to the diversification of the length, width and thickness of the workpiece, the feeding method usually uses the chuck to clamp the tail end of the workpiece and push it forward, and then step and shift the punch. hole, because the chuck is clamped at th...

AI Technical Summary

Problems solved by technology

[0002] At present, in the mechanical processing industry, the continuous punching of long steel plates is most common in automobile beams. Due to the limited capacity of the punching machine, the length of the punch group is generally within one meter, and for processing a 12-meter-long The automobile beam workpiece needs to be punched by multiple steps, but due to the diversification of the length, width and thickness of the workpiece, the feeding method usually uses the chuck to clamp the tail end of the workpiece and push it forward, and then step and shift the punch. hole, because the chuck is clamped at the far end of the elongated workpiece, that is, the chuck is far away from the stamping head, and at the same time, due to the impact and vibration of the workpiece, it is impossible to ensure the accurate positioning of the workpiece in the direction of the punch, so the workpiece The position of the punching hole is prone to deviation, which affects the quality of the punching hole of the workpiece and brings a lot of trouble to the production and processing

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