Rapid clamping method and device suitable for discrete multi-station production mode

Abstract

The invention discloses a rapid clamping method and device suitable for the discrete multi-station production mode, and belongs to the field of machining of aviation structural components. After clamping alignment is conducted through an outside-machine clamping work station, machining is conducted on a processing machine tool. The outside-machine clamping work station comprises a working table, a zero point positioning device, a supporting plate and an outside-machine clamping base plate. The zero point positioning device comprises zero positioning devices and positioning connectors. Workpiece clamping fixing holes are formed in the supporting plate. The multiple positioning connectors are arranged on the bottom face of the supporting plate. The multiple matched zero point positioning devices are arranged on the top face of the outside-machine clamping base plate. Multiple installation holes for being detachably fixed to the working table are further formed in the outside-machine clamping base plate. The outside-machine clamping base plate and a machine tool base plate on the processing machine tool have the united zero point positioning reference. The center distances of the zero point positioning devices of the outside-machine clamping base plate and the machine tool base plate on the processing machine tool are completely consistent. By means of the rapid clamping method and device, the machine tool halt time is shortened, the halt time caused by clamping is shortened, the process flow is shortened, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the processing field of aerospace structural parts. Background technique [0002] At present, the processing of aviation structural parts has the characteristics of multi-variety, single-piece and small-batch processing. At present, the workpiece can only be processed after the machine tool is aligned. As a result, the part clamping preparation leads to a high proportion of machine tool downtime, wasting a lot of precious time. . At the same time, the human error in the process of workpiece processing cannot be eliminated, which directly affects the overall accuracy of the workpiece. The errors of the same batch of parts vary from large to small, and the consistency is poor; interrupted processing and flexible production cannot be realized; The processing time is very long, the utilization rate of the equipment is very low, although there are many equipments, the output cannot meet the requirements. [0003] The traditional p...

AI Technical Summary

Problems solved by technology

However, due to the fact that the existing CNC equipment is operated in an isolated island, and the coordination and integration of different equipment is poor, the production line basically adopts the production method of one person and one machine

However, parts processing requires multiple processes to be completed continuously, so now parts processing relies on a large number of special tooling fixtures, tools, and measuring tools, resulting in large consumption of tooling materials, long process flow, no common interface for each process, and heavy repetitive workload. There are many people, the production organization is difficult, and the product manufacturing conversion speed is slow, so the manufacturing cost is high and the production efficiency is low.

At the same time, the structure of different products is very different, resulting in a large difference in the process flow and the equipment used, the average load rate of the equipment is low, and the logistics is relatively chaotic.

It is impossible to form an effective, complete, unified and coordinated operation of product processing flow, inter-process logistics, and processing program information flow

[0004] The key equipment of the enterprise is always limited. In the process of manufacturing, it is often encountered that the change of the production plan needs to be arranged for urgent processing. When a workpiece has been processed on a machine tool, it cannot be dismantled halfway. For example, the processing is large. One piece, and another urgent piece needs to be processed by this machine tool, often helpless, can only wait for the processing to be completed, which will undoubtedly affect the production progress

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