A swinging head rotary table five-axis machine tool simulating cutting force loading device and using method

Abstract

The invention relates to a simulated cutting force loading device of a head-oscillating turntable five-axis machine tool and a using method thereof. The device comprises an X-direction cutting force loading assembly, a Y-direction cutting force loading assembly, a Z-direction cutting force loading assembly, a rotary table turning-direction cutting force loading assembly, and a head-oscillating turning-direction cutting force loading assembly; and cutting force loading is realized by screwing an X-direction pre-tightening bolt, a Y-direction pre-tightening bolt, a Z-direction pre-tightening bolt, a rotary table turning-direction pre-tightening bolt, and a head-oscillating turning-direction pre-tightening bolt respectively. To be specific, the method comprises: the device is hoisted on a machine tool rotary table, the rotary table turning-direction fixed plate is fixedly connected to the machine tool rotary table, and a machine tool cutter main shaft and a motor shaft of a damping motor are fixedly connected; a group of cutting forces are set, the pre-tightening bolts of the five cutting force loading assemblies are screwed tightly by using a torque wrench, so that the friction forces of the five cutting force loading assemblies are equal to the set cutting force, and because values can not read directly by using a friction force method, screwing torques are calculated based on a formula of M=KFd / mu and then reading of values is carried out; and then the machine tool is started and processing procedures are executed, the practical operation state of the of the machine tool is simulated practically on the condition of force bearing, and the machine tool performance on the current cutting force condition is tested.

Description

technical field [0001] The invention belongs to the technical field of machine tool performance testing, and in particular relates to a cutting force loading device for simulating a five-axis machine tool with a swing head and a rotary table and a use method thereof. Background technique [0002] At present, for the swing head rotary five-axis machine tool in the CNC machine tool, the five-axis linkage can meet the high-precision machining of complex curved surface parts, and has become an indispensable processing equipment in many industries. Due to different machine tool manufacturers, the machine tool products of each machine tool manufacturer are often different in performance. Due to the differences in machine tool performance, the actual processing capabilities of machine tools are also significantly different. For machine tool purchasing enterprises, they all hope to be able to purchase machine tool products with better performance at a lower price, but the actual sit...

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Problems solved by technology

[0004] At this stage, there are mainly two ways to realize machine tool performance testing. The first is to realize the actual processing of materials by the machine tool, and the second is to realize the machine tool processing process by computer simulation; the machine tool through the first method Performance testing requires the consumption of a large amount of material objects and processing tools, and the price of processing tools is very expensive. Often a performance test process requires several processing tools, and the above costs are included in the manufacturing cost of the machine tool, but this The machine tool performance test method is the most reliable, which can ensure that the machine tool has the best performance after leaving the factory. The disadvantage is that the manufacturing cost of the machine tool is high; the machine tool performance test through the second method, although the test cost is very low, but the test reliability It is also very low. The computer simulation is the ideal processing process, but the actual processing process is uncertain. Even if the performance test is completed in the computer simulation, the machine tool still cannot avoid failures in the actual processing process. occurs, although the manufacturing cost of the machine tool is reduced, and the performance of the machine tool is also sacrificed

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