CN1945477A

CN1945477A - Method for processing curve by numerical controlled machine tool

Info

Publication number: CN1945477A
Application number: CN 200610154479
Authority: CN
Inventors: 潘旭华
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-31
Filing date: 2006-10-31
Publication date: 2007-04-11

Abstract

The invention belongs to the mechanical manufacturing, which is a surface processing method of numerical control machine, and the characteristic is: first, setting the standard model of the part that needs to process, installing the measuring head on the position of cutter, which size and shape is exactly same as the rotary that is formed by the tool cutting edge rotating. The measuring head clings with the surface of standard model. The numerical control machine drives to collect the coordinate data of various points on the surface, and the measuring software records the data. The standard model and measuring head is disassembled and the work piece and cutter are fit in. The surface of the work piece is processed by the cutter according to the data, and the work piece that is consistent with the standard model surface can be obtained.

Description

A kind of method with the numerically-controlled machine processing curve

Technical field

The invention belongs to the mechanical manufacturing method class, specifically is a kind of method with the numerically-controlled machine processing curve.

Background technology

In mechanical processing industry, there is the part that much has complicated irregular curved surface to need processing, the processing of these parts often all has very high accuracy requirement, and material much all is a difficult-to-machine material, as jet blade, turbine blade, marine propeller etc., the curve form of these parts is difficult to describe with mathematical formulae, it makes the general model of determining earlier, on measuring machine, measure its curve form, again measurement result is converted to be programmed on the corresponding numerically-controlled machine and process, because the measuring machine error is arranged, program conversion error and Numerical Control Machine Tool Machining Error exist, the surface machining accuracy of part does not often reach requirement, causes scrapping of product.

Summary of the invention

The objective of the invention is at the deficiencies in the prior art, a kind of method with the numerically-controlled machine processing curve is disclosed, effectively overcome measuring machine error, program conversion error, reduce Numerical Control Machine Tool Machining Error, simple and convenient, satisfactory for result, the surface accuracy height that processes.

Technical scheme of the present invention is as follows:

A kind of method of the present invention with the numerically-controlled machine processing curve, it is characterized in that: the master pattern of the part of the band curved surface that will process earlier is contained on the numerically-controlled machine, measuring head is loaded onto in the tool position, it is just the same that the cutting edge of the size of measuring head, shape and cutter rotates formed solid of revolution, measuring head is close to the curved surface of master pattern, by the numerically-controlled machine drive coordinate data of each point on the curved surface is gathered, and note the coordinate data of the each point on the master pattern by Survey Software; Pull down master pattern and measuring head, load onto workpiece and cutter respectively, the coordinate data of the measuring head each point of being noted by Survey Software by numerically-controlled machine is processed curve surface of workpiece with cutter, can obtain the workpiece consistent with the master pattern curved surface.

The present invention because adopted cutting edge with cutter to rotate formed revolution shape, equirotal measuring head is gathered the coordinate data of master pattern curved surface each point, directly workpiece is processed with cutter according to image data again, obtain the workpiece consistent with the master pattern curved surface, the present invention is simple and convenient, satisfactory for result, measuring machine error, program conversion error and Numerical Control Machine Tool Machining Error in the existing curved surface part processing have been effectively reduced, the part surface accuracy height of processing.

Embodiment

The concrete job operation of the present invention is: the master pattern of the part of the band curved surface that will process is contained on the machining tool, measuring head is loaded onto in the tool position, the size of measuring head, it is in full accord that shape and Tool in Cutting sword rotate formed solid of revolution, selected two axles are motorized shaft, all the other axles are driven shaft, remove the gear train on the driven shaft, the moving guide rail of linear axis can be moved freely, turning axle can rotate freely, measuring head is applied a strength, make on its curved surface that is close to tested master pattern, in the measuring process, select first to be fixed on a certain position in two motorized shaft, second motion, grating on the driven shaft or scrambler reflect the relevant position of driven shaft, the coordinate data of each point when being fixed on a certain position by first of the Survey Software of digital control system record, again first is moved and equal to cut the distance of spacing and fix, second motion, measure first coordinate data and record at second locational each point, continue to move first, till the coordinate data of whole each point is all gathered, because the measuring head shape of image data, it is in full accord that size and Tool in Cutting sword rotate formed solid of revolution, after the coordinate data collection of each point, do not need any conversion, as long as determine that process velocity can make measurement data directly change job sequence into, measuring head is removed, and load onto cutter, and the gear train of all driven shafts is reinstalled, load onto workpiece to be processed, by digital control system cutter is processed by measuring sequence to workpiece, obtained the workpiece consistent with master pattern.

Numerically-controlled machine of the present invention must be the control of full cut-off ring.

Claims

1, a kind of method with the numerically-controlled machine processing curve, it is characterized in that: the master pattern of the part of the band curved surface that will process earlier is contained on the numerically-controlled machine, measuring head is loaded onto in the tool position, it is just the same that the cutting edge of the size of measuring head, shape and cutter rotates formed solid of revolution, measuring head is close to the curved surface of master pattern, by the numerically-controlled machine drive coordinate data of each point on the curved surface is gathered, and note the coordinate data of the each point on the master pattern by Survey Software; Pull down master pattern and measuring head, load onto workpiece and cutter respectively, the coordinate data of the each point of the measuring head of being noted by Survey Software by numerically-controlled machine is processed curve surface of workpiece with cutter, can obtain the workpiece consistent with the master pattern curved surface.

2, method with the numerically-controlled machine processing curve according to claim 1, it is characterized in that: the master pattern of the part of the band curved surface that will process is contained on the machining tool, measuring head is loaded onto in the tool position, the size of measuring head, it is in full accord that shape and Tool in Cutting sword rotate formed solid of revolution, selected two axles are motorized shaft, all the other axles are driven shaft, remove the gear train on the driven shaft, the moving guide rail of linear axis can be moved freely, turning axle can rotate freely, measuring head is applied a strength, make on its curved surface that is close to tested master pattern, in the measuring process, select first to be fixed on a certain position in two motorized shaft, second motion, grating on the driven shaft or scrambler reflect the relevant position of driven shaft, the coordinate data of each point when being fixed on a certain position by first of the Survey Software of digital control system record, again first is moved and equal to cut the distance of spacing and fix, second motion, measure first coordinate data and record at second locational each point, continue to move first, till the coordinate data of whole each point is all gathered, after the coordinate data collection of each point, do not need any conversion, as long as determine that process velocity can make measurement data directly change job sequence into, measuring head is removed, and load onto cutter, and the gear train of all driven shafts is reinstalled, load onto workpiece to be processed, by digital control system cutter is processed by measuring sequence to workpiece, obtained the workpiece consistent with master pattern.

3, the method with the numerically-controlled machine processing curve according to claim 1 and 2 is characterized in that: numerically-controlled machine must be the control of full cut-off ring.