CN2060378U - Combined heavy-duty lathe tool and draw shave series - Google Patents

Abstract

The utility model discloses a combined heavy-duty turning and planning cutter chain for processing metal. The utility model is characterized in that after a tool bar is arranged, tool bits with different cutter types are changed to conveniently complete various cutting work such as heavy cut, middle cut, finish machining, chamfering, repairing end surfaces, back gouging, convex circular arc cutting, concave circular arc cutting, groove cutting, thread cutting, etc. The utility model has the advantages of simple structure, reliability, material saving, convenient tool sharpening management, rapid tool bit changing, work efficiency improving, etc. Because standardized, normalized and serialized components are adopted to form a cutter chain for the planning machines of heavy machine tools (including vertical lathes), heavy-duty turning tools and planer tools with 5 standards and 120 different uses are formed.

Description

Combined heavy-duty lathe tool and draw shave series

The utility model relates to a kind of combined type heavy-duty engine lathe of metal cutting machinery manufacture field, the serial cutter that planer is used.Being fit to heavy-duty engine lathe (comprising horizontal and vertical lathe) and planer (comprising metal-planing machine, gantry milling bed, large-scale mobile shaping machine) uses.

Known technology: the car planing tool is the cutting element of fundamental sum widespread usage in the metal cutting field, various in style at present, with regard to carbide alloy car, planing tool, roughly can divide integral solder formula, mechanical clamping type and assembled three classes, its concomitant shortcoming is that a knife bar can only be finished a work step (or operation), as needing half finish turning, finish turning, chamfering, back chipping, circle root, fillet after rough turn, repair end face, grooving, choosing button etc., each work step all needs the knife bar of tens kilogram weights is removed stage makeup and costume once, and the amount of labour and unproductive time are all bigger.

The purpose of this utility model is in order to overcome above-mentioned shortcoming, and development and design goes out a kind of the giving full play to heavy machine tool stock-removing efficiency, clamping and firmly can change the combined type heavy goods vehicles of Tool in Cutting parts again easily and dig serial cutter of energy multi-use of size dimension.

The purpose of this utility model is achieved in that the blade soldering is clamped on cutter head on the knife bar at pressing plate and the screw of forming cutter head, the fastening body of tool bit of round pin, band chip-breaking on the body of tool bit, body of tool bit becomes 80 °～85 ° the angle of wedge with the mating surface of knife bar, the center line of screw becomes 10 °～15 ° angles with the knife bar plane, two semi-cylindricals of pressing plate, article one, be pressed in the circular groove of body of tool bit, another is pressed on the inclined-plane of knife bar (1), and the relief angle of cutter is answered＜15 °; Point of a knife stretches out when long, must lengthening and make inclined-plane about 10 ° in the rear end of body of tool bit (2); The cutter head of the eight kinds of different cutter types that after loading onto a knife bar, can change the outfit at least.Change the cutter head of different cutter types as a knife bar, just can finish heavy cut, middle cutting, smart cutting, chamfering easily, repair multinomial cutting tasks such as end face, back chipping, dome arc, concave arc, grooving, cutting thread, thereby reach multi-use, improve work efficiency, reduce labor intensity, reduce cutter material consumption, improve the purpose of tool management.

When the utility model embodiment being described in detail in detail, owing to adopt the parts of standardization, normalization and seriation, thereby also have simple in structure, reliable, firmly and can change advantage such as cutter head fast below in conjunction with accompanying drawing, subordinate list.

Fig. 1 is a kind of concrete structure signal of the utility model

(1) knife bar (2) body of tool bit (3) carbide chip (4) pressing plate (5) chip-breaking (6) screw (7) round pin Fig. 2 is the vertical view of Fig. 1

Fig. 3 is that the grooving cutter schematic diagram 4 that point of a knife stretches out than length is vertical views of Fig. 3

Fig. 5 is middle cutting knife head signal

Fig. 6 is the signal of smoothing tool head

Fig. 7 is the signal of back chipping cutter head

Fig. 8 is the signal of dome arc cutter head

Fig. 9 is the signal of concave arc cutter head

Figure 10 is the signal of screw thread cutter head

With reference to Fig. 1～Fig. 8 and subordinate list, knife bar (1) body of tool bit (2) pressing plate (4) all can adopt steel 45 or 40Cr, and round pin (7) adopts the 45# steel.Chip-breaking (5) soldering go up to form the chip breaking pressing plate at pressing plate (4), thereby pressing plate not only plays the effect of clamping cutter head, and is a good chip-breaking.When smear metal acted on the chip-breaking (5), its active force had been strengthened the clamping force of pressing plate (4) to body of tool bit (2) again.The chip breaking pressing plate is mainly used in machine ductile material, and as forged steel, cast steel and rolled steel etc., common pressing plate does not weld chip-breaking, only plays pressing plate function, is mainly used in the work brittleness material, as cast iron, cast copper etc.The volume and weight of the body of tool bit of development and design (2) is littler than knife bar (1), and its weight only is 1/40～1/50 of knife bar.Carbide chip (3) and chip-breaking (5) all adopt standard component (as smelting mark YB850-75), and chip-breaking (5) also can adopt the method manufacturing of pile-up welding hard alloy or high-speed steel.Should adopt corresponding worker's folder, amount, sword and mould manufacturing to guarantee interchangeability of parts." heavy cutting knife head " and the carbide chip (3) of " middle cutting knife head " all adopt vertical position welding.The compressive resistance of the blade of the downhand welding of comparing improves exponentially, helps strengthening cutting data.Blade (3) soldering is gone up at body of tool bit (2) and is formed cutter head, utilize pressing plate (4) and screw (6) with the cutter head clamping on knife bar (1), because body of tool bit (2) becomes 80 °～85 ° the angle of wedge with the mating surface of knife bar (1), and the center line of screw (6) becomes 10 °～15 ° angles with the knife bar plane, two semi-cylindricals of pressing plate (4), article one, be pressed in the circular groove of body of tool bit (2), another is pressed on the inclined-plane of knife bar (1), thereby when tightening screw (6), all active forces all will make body of tool bit (2) and knife bar (1) be adjacent to and clamping and location before forming firm cutter and cutting.Cutter head mainly utilizes cutting force to clamp in working angles, its structure guarantees that cutter head only is under pressure in normal working angles, and screw (6) and pressing plate (4) and do not stress, for resultant tool force always is positioned within the cutter head bearing-surface, and cutter head is unlikely overturn, the relief angle of cutter should＜15 °.But because the needs of different purposes and point of a knife stretch out when long, then with the rear end lengthening of body of tool bit (2) and make inclined-plane about 10 °, this inclined-plane insert round pin (7) below.Radial-thrust force is with body of tool bit (2) push-tight backward during cutting, and round pin this moment (7) can compress the inclined-plane of body of tool bit (2) rear end and cutter head is overturned.Cutting force is big more, and then thrust is big more, forms reliable clamping.After loading onto a knife bar (this is the work of relatively requiring great effort), on the basis of not changing (or few change) knife bar, just can change the method for cutter head (cutting part) easily and change the cutter type, to adapt to the cutter of multiple cutting function.The combined type heavy goods vehicles is dug serial cutter table (seeing below subordinate list), comprises 5 specifications, and 17 kinds of knife bars and 45 kinds of cutter heads of 3 specification 8 classes can be combined into: the heavy-duty turning tool and the planing tool of 120 kinds of different purposes of 5 specifications.Wherein: 84 kinds of cutter types of 3 specifications of lathe tool; Planing tool: 36 kinds of cutter types of 2 specifications (still not comprising the variation of radius R of protruding, concave arc cutter head and the variation of left and right offset tool tool).With 60 ° of billmpse tools is that 8 kinds of cutter types of example change, that is: after loading onto the knife bar of 60 ° of billmpse tools on the lathe, can 1. dress " heavy cutting knife head " earlier, carry out rough turn, excise a large amount of metals; 2. change the outfit on " middle cutting knife head ", through rough turn, surplus has reduced and uniformly under the condition, use instead " smoothing tool head " can save the consumption of carbide chip, its cutting depth be generally " heavy cutting knife head " 3/4, and blade can save 37～48%; 3. " smoothing tool head " changes the outfit, can make the tool cutting edge angle of former cutter reduce 15 ° (nose angle increases by 15 ° relatively), make 60 ° of billmpse tools become lathe tool at 45, and the small-sized blade of downhand welding is convenient to finish grind out and is accorded with required tool geometry of finish turning and disconnected bits Depression, and can be used for chamfering; 4. change the outfit at " back chipping point of a knife ", can make the equating and the back chipping of shaft shoulder end face; 5. change the outfit " " protruding ", " recessed " circular arc cutter head ", can process round root, fillet; 6. change the outfit " necking cutter bit ", can cut shallow slot, undercut etc.; 7. change the outfit " screw thread cutter head ", but the cutting metric thread.Thereby reach " multi-use ", and owing to body of tool bit is arranged as the transition body between blade and the knife bar, the originating point that the bearing-surface that makes knife bar destroys further from blade than mechanical clamping type cutter and integral solder formula cutter, in case blade bursts apart, impaired only is body of tool bit, thereby can prolong knife bar service life.

Claims (1)

1. A kind of combined type heavy goods vehicles of mainly being made up of knife bar (1) and body of tool bit (2) is dug serial cutter, it is characterized in that blade (3) soldering go up to form the pressing plate (4) of cutter head, band chip-breaking (5) and screw (6) at body of tool bit (2) and cutter head is clamped on knife bar (1) is gone up, round pin (7) is supported or fastening body of tool bit (2); The body of tool bit (2) and the angle of wedge that forms 80 °～85 ° cooperating of knife bar (1), the center line of screw (6) becomes 10 °～15 ° angles with knife bar (1) plane; Two semi-cylindricals of pressing plate (4), in the circular groove that is pressed in body of tool bit (2), another is pressed on the inclined-plane of knife bar (1), and the relief angle of cutter should＜15 °; Point of a knife stretches out when long, must lengthening and make inclined-plane about 10 ° in the rear end of body of tool bit (2); Can change the outfit at least cutter head of eight kinds of different cutter types of a knife bar.

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