CN101912981A - Lathe tool and welding process thereof - Google Patents

Abstract

The invention discloses a lathe tool. The lathe tool comprises a tool bit, wherein the tool bit is fixed on a lathe through a tool bar and provided with a tool nose formed by edges of a plurality of surfaces; the tool bar is made of normal structural steel; the tool bit is made of YH2 profile steel; a negative rake of the tool ranges from -7 to -8 degrees, a relief angle ranges from 8 to 10 degrees and a tool cutting edge inclination angle ranges from -6 to -8 degrees; and a chip breaker groove is not adopted on the structure of the tool bit, so that the strength of the tool bit is increased. The lathe tool has the advantages of high efficiency, cleanness (no need of cooling liquid), low cost and the like and can ensure that the machined parts have high surface integrity and overall machining accuracy.

Description

A kind of lathe tools and welding procedure thereof

Technical field

The present invention relates to a kind of lathe tools and welding procedure thereof.

Background technology

As everyone knows, grinding equipment such as flat stone mill, peripheral milling, equipment such as projection grinder are limited, and processing cost is quite high, and adopt means of a hard-turning process to process this type component, cutter is a key technology, at present be applicable to that in the world the cutter of hard turning mainly contains the CBN cutter, AL2O3/TiC sintex, PCD cutter, ceramic tool etc., but this class cutter ubiquity cost is very high, and procurement cycle is long, the big and shortcoming that is difficult to obtain promotion and application of sharpening technology difficulty.

Summary of the invention

The object of the present invention is to provide a kind of lathe tools and welding procedure thereof, it has the working (machining) efficiency height, and production cost is low, wear-resisting, good heat resistance and the good characteristics of versatility.

The objective of the invention is to be achieved through the following technical solutions:

A kind of lathe tools, it comprises cutter head, described cutter head is fixed on the lathe by knife bar, and described cutter head is provided with the point of a knife that is made of most surperficial seamed edges, and wherein, described knife bar material is a general structural steel, tool tip material is a YH2 shaped steel, and the negative rake of described cutter is between-7 °～-8 °, and relief angle is between 8 °～10 °, and cutting edge inclination is between-6 °～-8 °.

A kind of lathe tools welding procedure, it comprises following step:

A prepares before the weldering: the suitable inductor → selection high-frequency welding power output of inspection → selection before the weldering → select for use 105 scolders and dewatering borax solvent → place on cutter head successively scolder, solvent and YH2 blade.

B, heating soldering: evenly heating, heat blade behind the heating cutter hub earlier, make both reach 940 ℃-960 ℃ of best welding temperatures simultaneously, be no more than 5S weld interval.

C, after welding treatment: the blade that welds is put into tempering furnace insulation 2 hours.

Beneficial effect of the present invention is, described lathe tools cutter head adopts YH2 shaped steel, on cutter head structure, do not adopt chip-breaker to increase the intensity of cutter head, not only has high efficiency, clean (need not cooling fluid), low cost and other advantages, and can be so that institute's processing parts obtains surface of good integrality and whole machining accuracy.

Description of drawings

With embodiment the present invention is described in further detail with reference to the accompanying drawings below.

Fig. 1 is the structural representation of lathe tools of the present invention;

Fig. 2 is the main geometric parameters schematic diagram of lathe tools of the present invention;

Put sequential schematic before the blade weldering of Fig. 3 for lathe tools welding procedure of the present invention.

Among the figure:

1, knife bar; 2, cutter head; 3, main cutting face; 4, secondary cutting face; 5, point of a knife; 6, cutter groove; 7, scolder; 8, flux; 9, blade; 10, front.

The specific embodiment

Please refer to Figure 1 and Figure 2, Fig. 1 is the structural representation of lathe tools of the present invention; Fig. 2 is the main geometric parameters schematic diagram of lathe tools of the present invention; In present embodiment, a kind of lathe tools, it comprises cutter head 2, described cutter head 2 is fixed on the lathe by knife bar 1, wherein, cutter head 2 materials are YH2 shaped steel, and described knife bar material is a general structural steel, and described cutter head 2 is provided with main cutting face 3 and secondary cutting face 4, described main cutting face 3, the point of a knife 5 of the seamed edge formation of secondary cutting face 4 and front 10, and described cutter adopts than big negative rake, according to the difference of cutting adjusting, negative rake ro is between-7 °～-8 °, in order to reduce friction and the work hardening phenomenon, relief angle ao is between 8 °～10 °, in order to strengthen the intensity of cutter head 2, cutting edge inclination A and does not adopt chip-breaker on the cutter between-6 °～-8 °; The width of negative chamfered edge determines that according to formula D=0.5f～1.0f D is the chamfered edge width; F is the amount of feeding.

Please refer to shown in Figure 3ly, Fig. 3 puts sequential schematic before for the weldering of the blade of lathe tools welding procedure of the present invention,

A kind of lathe tools welding procedure, it comprises following step:

A prepares before the weldering: placement scolder 7, solvent 8 and YH2 blade 9 in the cutter groove 6 on cutter head 2 of the suitable inductor → selection high-frequency welding power output of inspections → selection before the weldering → select for use 105 scolders and dewatering borax solvent → successively.

B, heating soldering: evenly heating, heating blade 9 behind the heating cutter hub makes both reach 940 ℃-960 ℃ of best welding temperatures simultaneously earlier, is no more than 5S weld interval.

C, after welding treatment: insulation in the blade 9 insertion tempering furnaces that weld was got final product after 2 hours.

Above-mentioned lathe tools not only have high efficiency, and clean (need not cooling fluid), low cost and other advantages, and wear-resisting, good heat resistance and versatility are good, can be so that institute's processing parts obtains surface of good integrality and whole machining accuracy.

Claims (2)

1. lathe tools, it comprises cutter head, described cutter head is fixed on the lathe by knife bar, and described cutter head is provided with the point of a knife that is made of most surperficial seamed edges, it is characterized in that: described knife bar material is a general structural steel, and tool tip material is a YH2 shaped steel, and the negative rake of described cutter is between-7 °～-8 °, relief angle is between 8 °～10 °, and cutting edge inclination is between-6 °～-8 °.

2. lathe tools welding procedure, it is characterized in that: it comprises following step:

A prepares before the weldering: the suitable inductor → selection high-frequency welding power output of inspection → selection before the weldering → select for use 105 scolders and dewatering borax solvent → place on cutter head successively scolder, solvent and YH2 blade.

B, heating soldering: evenly heating, heat blade behind the heating cutter hub earlier, make both reach 940 ℃-960 ℃ of best welding temperatures simultaneously, be no more than 5S weld interval.

C, after welding treatment: the blade that welds is put into tempering furnace insulation 2 hours.

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