Full-automatic crankshaft oil hole machining numerical control machine tool

Abstract

The invention discloses a full-automatic crankshaft oil hole machining numerical control machine tool. The machine tool is used for machining a crankshaft oil hole and chamfering. The machine tool ismainly composed of a lathe bed, a transverse sliding table, a rotating disc, a vertical direction stand column, a perpendicular direction sliding table, a vertical direction sliding table, an index transposition clamp of a crankshaft, a crankshaft axial positioning clamp, a crankshaft radial positioning clamp, a rotating tower power head, a tool monitoring, measuring and alignment system, an electrical control system, a hydraulic control system, a chip removal device system, an MQL lubricating system and a machine tool protection part. Only one machine tool is needed, the rotating tower powerhead is adopted, full automatic machining of straight oil hole leading hole drilling, direct oil hole drilling, inclined oil hole leading hole drilling, inclined oil hole drilling, and chamfering of astraight oil hole and an inclined oil hole of the crankshaft can be achieved, the environment is not polluted, the production environment is thoroughly improved, the automation degree is high, flexibility is high, work efficiency can be effectively improved, and labor intensity is reduced.

Description

technical field [0001] The invention relates to the technical field of automobile parts manufacturing, in particular to a numerically controlled machine tool for fully automatic machining of straight and inclined oil holes and chamfering of a crankshaft. Background technique [0002] At present, the machine tools for machining crankshaft oil holes are all special machine tools for single machining straight oil holes or inclined oil holes. The disadvantage is that the oil hole machining of a crankshaft needs to be completed in three processes: drilling straight oil holes, drilling inclined oil holes, Orifice chamfer. Because the equipment is too professional, the limitations brought by it are also obvious: [0003] 1. The oil hole processing of a crankshaft requires three machine tools, which covers a large area; at least two operators are required. [0004] Work, the assembly line is elongated, each machine tool needs to be equipped with a large amount of tooling and stati...

AI Technical Summary

Problems solved by technology

[0004] Work, the assembly line is elongated, each machine tool needs to be equipped with a large amount of tooling and station equipment, and the production efficiency is low; the crankshaft is frequently hoisted between processes, which is prone to bump damage, and the machine tool is clamped multiple times, which increases the wear and tear on the top hole of the crankshaft or Bump injuries, increased labor intensity of operators

[0005] 2. Only one kind of tool can be clamped. The surface of the crankshaft is a curved surface. When the drill bit just touches the surface of the crankshaft, it is easy to slip. It must be equipped with a drill sleeve guide

[0006] 3. The chamfering of the oil hole is manually operated. Since the position of the crankshaft oil hole and the axis have different phase angles, it is difficult to align the oil hole when chamfering, and chamfering often occurs; or the drill directly Drilling on the outer surface of the crankshaft will cause the crankshaft to be scrapped, the labor intensity is high, and the chamfering accuracy is poor

[0007] 4. The requirements for the operator's skills are very high. If the force of the drill is not well grasped, it is easy to cause vibration lines on the chamfering surface; if the chamfering edge width is too small or too large, the finished chamfering size will be out of tolerance. If you do not pay attention Flowing into the next process, when the edge is small, it may cause quenching cracks when quenching in the next process

[0008] 5. Unsafe factors increase. For example, during manual chamfering, the operator works in an environment where the drill bit rotates at a high speed, and the operator is highly nervous. If there is a slight negligence, the rapidly rotating drill bit may scratch fingers, and the splash of iron filings may easily cause accidental injury. A broken drill bit will injure the operator, etc., which poses a great potential safety hazard.

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