CNC bench drill analog handle

Abstract

The invention relates to a simulative handle for a numerical control bench drill. The simulative handle comprises a holder, an electromagnetic damping disk, a rotary encoder, and handles provided with a rotary shaft. The holder is provided with a flange and a tube. The flange is fixed on a bench drill. The rotary shaft is positioned on the flange through a bearing. The electromagnetic damping disk and the rotary encoder are disposed in the tube and are respectively linked to the rotary shaft. The handles are provided with a handle base and are fixed at the end of the rotary shaft through the handle base. The handle base covers an opening of the tube. The rotary encoder is electrically connected with a servo motor and controls action of the servo motor. A current sensor connected to a power input end of the servo motor acquires change of current and is connected to an electromagnetic coil of the electromagnetic damping disk through an amplifier circuit. The simulative handle is capable of controlling action of the servo motor and timely feeding back feed resistance of the bench drill during operation, and helps operators judge magnitude of the feed resistance and regulate feed amount so as to regulate feed speed by hand feel and protect a drill bit from damage.

Description

Technical field: [0001] The invention belongs to the field of mechanical equipment, in particular to a numerical control bench drill simulation handle. Background technique: [0002] Bench drills, also known as bench drills, are widely used in the field of mechanical processing, and can perform operations such as drilling, reaming, reaming and tapping on workpieces. The structure of a manual bench drill generally includes a base, a column, a headstock, a main shaft, a main shaft sleeve, a gear shaft, and a handle. During processing, the gear shaft is driven to rotate by turning the handle, thereby driving the vertical rack on the main shaft sleeve meshing with it to move up and down to complete fast forward, attack, fast rewind, and combined actions. Such a bench drill is not only cumbersome to operate and labor-intensive, but also one person can only control one machine, and the production efficiency is relatively low, especially for batch processing. For this reason, the...

AI Technical Summary

Problems solved by technology

After years of practice, CNC bench drills still have limitations. First, bench drill operators are first-line technicians, and programming is difficult for them to cut in for a while; second, besides processing batches of workpieces, bench drills also handle some non-standard scattered Workpieces, especially these workpieces have large differences in material and complex processing specifications. Although they can be processed manually through the operation keys on the CNC panel, the resistance during drilling cannot be judged, resulting in damage to the drill bit and other failures.

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