Protective device used for pulling large workpieces to move in machining workshop

Abstract

The invention discloses a protective device used for pulling large workpieces to move in a machining workshop. The protective device comprises a workbench and a mounting base, wherein brackets are fixedly arranged at the two sides of the mounting base separately; rollers are rotatably arranged on the brackets; a rotary disc is rotatably arranged on the mounting base; two regulating rollers are arranged on the rotary disc; two limiting slots are formed in the rotary disc; two fixing holes are formed in the mounting base; end part of a positioning rod perpendicularly and movably penetrates through the limiting slots, and then is connected with the fixing holes; a step motor is arranged in the workbench; a central shaft is connected with an output end of the step motor; travel switches are arranged at the two ends of each limiting slot; and the travel switches are connected with the step motor through controllers. When the positioning rod is in contact with the travel switches, the travel switches send a signal to the controller, the controller sends a control command to the step motor, and the step motor starts to rotate reversely, so that a traction rope is forced to change course again; and on the premise of preventing the positioning rod from being in hard contact with the rotary disc, the traction rope is guaranteed to uniformly roll on a rolling roller.

Description

technical field [0001] The invention relates to the field of machine shop processing, in particular to a protection device for pulling and moving a large workpiece in a machine shop. Background technique [0002] In the machining workshop, ordinary manual labor cannot move large workpieces normally, and traction equipment similar to hoists is usually needed to realize the transfer of workpieces. The steel rope is the connecting piece that realizes the mutual connection between the traction equipment and the workpiece. However, when the traction line is wound up, an adjusting roller drives the winding roller of the hoist to rotate, and the traction line is pulled from the exit of the hoist to the winding machine of the hoist. On the winding roller, because the winding roller body of the winch machine rotates continuously with the adjusting roller, the traction line entering the inner wall of the winding roller of the hoisting machine is easy to accumulate on one side of the w...

AI Technical Summary

Problems solved by technology

The steel rope is the connecting piece that realizes the mutual connection between the traction equipment and the workpiece. However, when the traction line is wound up, an adjusting roller drives the winding roller of the hoist to rotate, and the traction line is pulled from the exit of the hoist to the winding machine of the hoist. On the winding roller, because the winding roller body of the winch machine rotates continuously with the adjusting roller, the traction line entering the inner wall of the winding roller of the hoisting machine is easy to accumulate on one side of the winding roller of the hoisting machine, causing the winding roller of the hoisting machine to The other side is free, that is, the traction lines accumulated on the take-up roller of the winch are polarized, and the distribution is extremely scattered

At the same time, the tension of the traction wire drawn into the winding roller of the hoist cannot be guaranteed, so that the inner diameters of the traction coils on the same traction wire layer formed into turns are different, and mutual extrusion is easily formed between two adjacent traction wire layers, seriously It is easy to cause the traction line to be stuck on the winding roller of the hoist when it appears again, which increases the difficulty of moving large workpieces

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