CN201049461Y - Flexible digital control line-scribing equipment - Google Patents

Abstract

The utility model discloses a flexible numerically controlled line scriber, comprising a rigid straight stick needle bar which has one end provided with a hard alloy needle point and the other end provided with a step head which is inserted in a cavity of a straight-handle guide sleeve and contacts an elastic element arranged on an upper coaxial line of the cavity; the upper end head of the guide sleeve is provided with an adjusting screw plug by which the pre compaction of the elastic element can be adjusted. Based on the hardness of the processed materials, by adjusting the adjusting screw plug and the lifting main shaft of the numerically controlled machine, the utility model can exert pre compaction on springs, generating the scribing-line force, thereby scribing clear lines; the utility model is particularly applied to the three-coordinate and the five-coordinate numerically controlled machines which can precisely scribe industrial scribed lines of complex parts of a plane, such as cut line, station line, datum line and angle line of the composite material layer, etc. under the control of the numerical control program. Compared with the prior method, the scribing-line speed of the utility model is improved by more than twenty times.

Description

The flexible numerical film line cutter

Technical field

The utility model relates to a kind of under the control of Digit Control Machine Tool numerical control program, accurately carves the film line cutter of complex parts technology groove.

Background technology

The digitlization New Machining Technology has been widely used among the mould manufacturing at present, the existing various advanced softwares of complex-curved digital control processing are realized programming and are processed with three-dimensional or five-coordinate numerally controlled machine tool equipment, the precision that numerical control is measured has reached micron order, and the manufacturing process of curved surface and quality have qualitative leap.But will accurately carve the various erect-position lines of airplane parts, part line of cut, datum line Digit Control Machine Tool itself on mould complex-curved can't accomplish.Traditional way is to get ready with the centre drill numerical control on complex-curved, manual then line.This method is the main method that present domestic manufacturing industry adopts.Its advantage is quick, general, is applicable to various mold materials, but its shortcoming also clearly.At first be that to get diameter ready big, generally more than 1 millimeter, point is with during being connected of putting is difficult to accurately find.As a whole, these grooves are sectional broken line, and the line of formation is unsmooth, error is big, causing the involutory back of sheet metal part to produce inhomogeneous gap easily, secondly is to get the degree of depth ready generally to surpass 1 millimeter, and these put the presentation quality that dark pit can have a strong impact on surface of the work; Secondly be that point influences graduating accuracy less, the some curved surface quality that influence more when curved surface changes violent place and carves various little R again; Outside inferior, these points are difficult to remove when workpiece is reprocessed groove, obscure easily between new and old.In order to overcome the problems referred to above of manual groove, prior art is an instrument numerical control groove with common scriber usually, but finds that in real work there are many problems in this method.The one, the working life of tip portion is very short, only can draw several meters long groove sometimes, or heavy wear can not use, or bursts apart and can not use; The 2nd, scriber is drawn more straight line on the little face of curvature all right, but the line that wiping is violent on the bigger face of curvature is stranded degree greatly; Especially groove is very difficult on steel part, steel-casting, heat treatment part; Numerical control groove on ability after the necessary sanding than the matsurface groove; Diameter is 6 millimeters, the common scriber poor rigidity of length about 200, and scriber is easy to wear, and stress deformation during the rotation groove produces and reaches 1 millimeter thick track, reduces graduating accuracy greatly; Gap between needle point and the workpiece with form surface is among the variation often, and the required pressure of groove can't be constant, and needle point moves towards the control difficulty, and groove is intermittent sometimes, and is deep mixed, usually needs to adjust repeatedly highly to mend and carves.The groove speed of the common scriber of prior art is very slow, is lower than 0.5 meter/minute sometimes, no matter qualitatively, still on efficient, all can not satisfy the requirement of modern industry.For seeking the novel numerical control scriber, we have successively seeked advice from how tame famous Tool Manufacturer both at home and abroad, all less than producing the cutter that is specifically designed to the numerical control groove, also do not find better way.

Summary of the invention

The purpose of this utility model is the weak point that exists at above-mentioned prior art, provides a kind of wearability good, and the life-span is long, can regulate groove power in a big way, the clear uniform flexible numerical film line cutter of groove

The technical scheme that its technical problem that solves the utility model adopts is: a kind of flexible numerical film line cutter, has a straight large knitting needle bar of rigidity, it is characterized in that, one end band carbide alloy needle point, one end is shaped on the step head, stretch in the staight shank guide cavity, contact, an adjusting plug screw of regulating described flexible member precompression is arranged on the upper end of guide with the spacing flexible member that is coaxially set on it.

The utility model has following beneficial effect than prior art.

The utility model can be implemented precompressed generation groove power by regulating plug screw to spring according to rapidoprint hardness situation, also can pass through the pressure of Digit Control Machine Tool lifting main shaft regulating spring in the work, thereby carve lines clearly.The spring that freely stretches can overcome the obstruction of microcosmic ripple to needle point, realizes complex-curved quick groove; High-quality carbide alloy needle point can improve the groove working life greatly, and guarantees that line width is even; Aperture is used for guide, can conveniently inject lubricating oil.The steam vent that is shaped on the guide bus oil filler point of holding concurrently can be regulated the pressure that guide inner chamber air flows and realize good lubrication, improves the quick responsiveness of needle point.Can in a big way, regulate groove power by regulating plug screw and lathe lifting main shaft, can carry out groove materials such as wood, aluminium, copper, mild steel, cast iron, cast steel, hardened steel.Because the carbide alloy with longer life is adopted in the tip, groove speed improves more than 20 times than conventional method, and every mold groove time can shorten 2 hours.The successful Application of mold frock manufacturing test surplus 1000 is created an output value economic benefit and can reach more than 400,000 yuan in the year of raising the efficiency.This patent is specially adapted to accurately carve industrial grooves such as aircraft complex part line of cut, erect-position line, datum line, compound material laying layer angle line with three-dimensional, five-coordinate numerally controlled machine tool under numerical control program control, and groove speed improves more than 20 times than conventional method.Adopt the carbide alloy needle point, wearability is good, and the life-span is long.

Description of drawings

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is an organigram of the present utility model.

The specific embodiment

In Fig. 1, straight large knitting needle bar 2 one ends of rigidity are shaped on carbide alloy needle point 1, and the other end is shaped on step, stretches in staight shank guide 3 cavitys.Shank 2 step heads are limited on the hole platform of guide 3 lower ends, contact with the spacing flexible member that is coaxially set on it, and the relative free degree that is moved up and down by its restriction.Described spacing flexible member can be a spring 4, can be the nonmetal medium elastomer also, such as elastic caoutchouc, and compressed air medium, or hydraulic fluid medium.For making things convenient for the precompression of 4 pairs of needle points of regulating spring, on the upper end of guide 3, be equipped with the adjustable diameter and screw adjusting plug screw 5 of regulating spring 4 precompressions.The air that injects lubricating oil and guide inner chamber for convenience flows, and improves the quick responsiveness of shank, is shaped on the guide to be used to regulate the guide internal gas pressure, and is used to inject lubricating oil exhaust hole 6.This exhaust hole 6 is usually on the bus on the face of cylinder of guide.

During work, screw in or screw out by plug screw, the regulating spring decrement produces the pressure that needs; Pressure passes to needle point by shank, makes between needle point and the workpiece to have pressure stable, and Digit Control Machine Tool motion under numerical control program control, needle point promptly carves various complex curves on surface of the work.Mainly be to utilize top plug screw regulating spring decrement, produce different pressure, thereby, carry out groove on the curved surface such as steel plate, aluminium sheet, cast iron, cast steel, epoxy resin, timber, composite etc. at different materials.Aperture on the sleeve is used to inject lubricating oil and makes things convenient for the barrel bore air to flow.

Claims (3)

1. flexible numerical film line cutter, has a straight large knitting needle bar of rigidity, it is characterized in that, one end band carbide alloy needle point, one end is shaped on the step head, stretch in the staight shank guide cavity, contact, an adjustable diameter and screw adjusting plug screw of regulating described flexible member precompression is arranged on the upper end of guide with the spacing flexible member that is coaxially set on it.

2. flexible numerical film line cutter according to claim 1 is characterized in that, is shaped on aperture on the face of cylinder bus of described guide.

3. flexible numerical film line cutter according to claim 1 is characterized in that, described flexible member is spring or nonmetal medium elastomer.

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