CN201988737U

CN201988737U - Vertically-mounted five-edged cutting blade for rough machining

Info

Publication number: CN201988737U
Application number: CN 201020645700
Authority: CN
Inventors: 周志千
Original assignee: ZHONG YING METAL CUTTING (DALIAN) CO Ltd
Current assignee: ZHONG YING METAL CUTTING (DALIAN) CO Ltd
Priority date: 2010-12-07
Filing date: 2010-12-07
Publication date: 2011-09-28
Anticipated expiration: 2020-12-07

Abstract

The utility model discloses a vertically-mounted five-edged cutting blade for rough machining. The blade is shaped like a pentagon; a cutting edge is arranged on the vertical surface of each angle of the convex pentagon; a chamfered edge, a scrap-discharging slot and scrap-breaking devices are arranged on each cutting edge; the lower edge of the cutting point forms an inclined angle Alpha with the vertical direction of the cutting edges; the chamfered edges are arranged at the transition parts of the scrap-discharging slots and form an inclined angle Gamma with the horizontal direction of the cutting edges; the scrap-discharging slots are sectorial surfaces which are concave internally; the radius of the circular arc on the center lines of the surfaces of the scrap-discharging slots ranges from 2 to 5 mm; the scrap-breaking devices include two horizontal scrap-breaking devices and one vertical scrap-breaking device; the two horizontal scrap-breaking devices are symmetrically arranged on both sides of the center line of each cutting edge; and the fixed width e ranges from 0.1 to 0.5 mm. Because of the scrap-discharging slots of the internally concave sectorial surfaces and the cutting edges on the large front angles in the utility model, scraps can be discharged more directionally, so as to solve the scrap-discharging problem fundamentally, so that the service life of the blade and the quality of the surface of a machined workpiece are improved remarkably.

Description

A kind ofly be used for rough machined upright installation and press from both sides five sword cutter blades

Technical field

The utility model relates to a kind of turning cutting off tool of metal cutting manufacture field, and that particularly a kind of turning is cut to is main, have both the multiple function rough machined upright installations that are used for such as grooving, finishing car chamfering presss from both sides five sword cutter blades.

Background technology

In the roughing process that conventional turning is cut off, cutter blades is mainly used in and cuts off the bar material on lathe and automatic machine tool.Conventional cutter blades is in working angles, and cutting region chip removal difficulty, cooling is not enough, and cutter head thickness is little and stretch out brachium, poor rigidity, when cutting near bar material center, the real work relief angle of blade becomes negative value, cutting force enlarges markedly when beginning to cut off, and can produce vibration and extruding phenomenon.For solving above technical barrier, the main method of present domestic employing is as follows:

1, owing to limited by the cutter head width, for avoiding too weakening the cutter head intensity of cutter blades, general employing changes the method for cutter blades auxiliary angle;

2, for reducing cutting vibration, cutter blades forms front clearance along point of a knife to the attenuation gradually of supporting surface direction.

More than two kinds of solutions solved the technical barrier that exists in the cutting-off process to a certain extent, but formed simultaneously blade abrasion serious, be cut surface of the work linearity difference and slightly release souls from purgatory difficult problems such as low.

Summary of the invention

For solving the problems referred to above that prior art exists, the utility model will design and a kind ofly be used for rough machined upright installation and press from both sides five sword cutter blades, cutting zone chip removal difficulty, cooling deficiency both can in working angles, have been solved, the cutter head poor rigidity, cutting force enlarges markedly, produces vibration and extruding phenomenon when cutting near bar material center, the technical barrier that blade abrasion is serious, be cut workpiece processing rear surface poor performance be can solve again, blade service life and working (machining) efficiency improved.

To achieve these goals, the technical solution of the utility model is as follows: a kind ofly be used for rough machined upright installation and press from both sides five sword cutter blades, described insert shape is protruding pentagon, a cutting edge is all arranged on the vertical plane at protruding pentagonal each angle, each cutting edge has fixed width w, and cutting edge arrives the supporting surface direction with fixed angle β attenuation gradually along point of a knife; The clamping face up and down of blade is octagon, and its circumscribed circle diameter D1 is 8-15mm, and clamping face is marked with the sequence number of 1-5 cutting edge on it; All be placed with chamfered edge, chip area, chip-breaking on each cutting edge, point of a knife lower edge and cutting edge vertical direction form angle α, chamfered edge be located at chip area transition position, become angle γ with the cutting edge horizontal direction, have fixed width b; Chip area is the concave shaped sector, and arc radius r is 2-5mm on its centre of surface line; Chip-breaking comprises two horizontal chip-breakings and a vertical chip-breaking, two horizontal chip-breakings are symmetrically distributed in cutting edge center line both sides, fixed width e is 0.1-0.5mm, and vertical chip-breaking is positioned on the cutting edge center line, the close clamping face of one end, and its fixed width c is 0.1-0.3mm.

Chamfered edge angle γ described in the utility model is that 10-15 °, fixed width b are 0.02-0.1mm; Cutting edge fixed width w is that 0.5-4mm, angle α are 6-8 °, and fixed angle β is 0.5-3 °; The vertical chip-breaking of point width is that 1.5-5mm, vertical height a are 0.4-0.7mm near the length L of clamping face one end.

Circumscribed circle diameter D described in the utility model is divided into two kinds of 24mm and 34mm, and when wherein circumscribed circle diameter was 24mm, corresponding cutting edge fixed width w was 0.5-3mm, and circumscribed circle diameter is when being 34mm, and corresponding cutting edge fixed width w is 1.5-4mm.

Compared with prior art, the utlity model has following beneficial effect:

1, the difficult problem that chip removal in roughing turning is cut off is smooth because the cutting edge of the chip area of concave shaped sector of the present utility model and big positive rake angle has solved, detritus is piled up the too high and surface quality difference of the cooling deficiency, the local temperature that cause, in the middle of being higher than around this sector, make that the cutting blade tip is more sharp-pointed, can obtain surface quality preferably.In addition, the concave shaped design makes detritus derive more directionality, discharges along cutting edge center line direction spiral, has fundamentally solved the chip removal problem, makes blade life and workpiece to be machined surface quality all increase significantly.

2, the design of five cutting edges of the utility model blade, be exclusive design in the present domestic same domain scope, make this blade can totally use 5 times, the maximum depth of cut of the solid bar of cutting can reach 12mm in cutting off processing, and the maximum cutting wall thickness of tubulose material reaches 50mm.

3, because the utility model adopts upright clamping to hold on method of clamping, make blade and grasping system thereof have favorable rigidity, also make the high speed feed in working angles become possibility, the amount of feeding in cutting is recommended as Vc=120m/min, because the high stability of this structure makes the linearity of work piece and surface smoothness all be enhanced, thereby the utility model is all of good performance in cutting-in groove, finishing car and chamfering, and its repetitive positioning accuracy can reach ± 0.025mm.

4, flute profile of the present utility model is particularly suitable for the cut-out processing of roughing turning, is the first-selection of processing soft material, and the cut-out of pipe fitting minor diameter and thin-wall part is particularly suitable for the cut-out processing of mild steel, steel alloy and austenite stainless steel workpiece.

5, the utility model is mainly used in the cutting edge and the untapped cutting edge that in use will use and makes a distinction in the sequence number of last clamping face mark cutting edge, is beneficial to and obtains better crudy in process.

Description of drawings

4 in the total accompanying drawing of the utility model, wherein:

Fig. 1 is used for rough machined upright installation to press from both sides five sword cutter blades shape main body schematic diagrames.

Fig. 2 is the left side view of Fig. 1.

Fig. 3 is the local enlarged diagram in A place of Fig. 2.

Fig. 4 is the A-A cutaway view of Fig. 3.

Among the figure: 1, cutting edge, 2, chip area, 3, horizontal chip-breaking, 4, chamfered edge, 5, clamping face, 6, vertical chip-breaking.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described further.A kind ofly shown in Fig. 1-4 be used for rough machined upright installation and press from both sides five sword cutter blades, described insert shape is protruding pentagon, a cutting edge 1 is all arranged on the vertical plane at protruding pentagonal each angle, each cutting edge 1 has fixed width w, and cutting edge 1 arrives the supporting surface direction with fixed angle β attenuation gradually along point of a knife; The clamping face up and down 5 of blade is octagon, and its circumscribed circle diameter D1 is 8-15mm, and clamping face 5 is marked with the sequence number of 1-5 cutting edge 1 on it; All be placed with chamfered edge 4, chip area 2, chip-breaking on each cutting edge 1, point of a knife lower edge and cutting edge 1 vertical direction form angle α, chamfered edge 4 be located at chip area 2 transition position, become angle γ with cutting edge 1 horizontal direction, have fixed width b; Chip area 2 is the concave shaped sector, and arc radius r is 2-5mm on its centre of surface line; Chip-breaking comprises two horizontal chip-breakings 3 and a vertical chip-breaking 6, two horizontal chip-breakings 3 are symmetrically distributed in cutting edge 1 center line both sides, fixed width e is 0.1-0.5mm, vertical chip-breaking 6 is positioned on cutting edge 1 center line, the close clamping face 5 of one end, and its fixed width c is 0.1-0.3mm.Described chamfered edge 4 angle γ are that 10-15 °, fixed width b are 0.02-0.1mm; Cutting edge 1 fixed width w is that 0.5-4mm, angle α are 6-8 °, and fixed angle β is 0.5-3 °; The vertical chip-breaking 6 of point width is that 1.5-5mm, vertical height a are 0.4-0.7mm near the length L of clamping face 5 one ends.Described circumscribed circle diameter D is divided into two kinds of 24mm and 34mm, and when wherein circumscribed circle diameter was 24mm, corresponding cutting edge 1 fixed width w was 0.5-3mm, and circumscribed circle diameter is when being 34mm, and corresponding cutting edge 1 fixed width w is 1.5-4mm.

Claims

1. one kind is used for rough machined upright installation and presss from both sides five sword cutter blades, described insert shape is protruding pentagon, a cutting edge (1) is all arranged on the vertical plane at protruding pentagonal each angle, each cutting edge (1) has fixed width w, and cutting edge (1) arrives the supporting surface direction with fixed angle β attenuation gradually along point of a knife; It is characterized in that: the clamping face up and down (5) of blade is octagon, and its circumscribed circle diameter D1 is 8-15mm, and clamping face on it (5) is marked with the sequence number of 1-5 cutting edge (1); All be placed with chamfered edge (4), chip area (2), chip-breaking on each cutting edge (1), point of a knife lower edge and cutting edge (1) vertical direction forms angle α, chamfered edge (4) be located at chip area (2) transition position, become angle γ, have fixed width b with cutting edge (1) horizontal direction; Chip area (2) is the concave shaped sector, and arc radius r is 2-5mm on its centre of surface line; Chip-breaking comprises two horizontal chip-breakings (3) and a vertical chip-breaking (6), two horizontal chip-breakings (3) are symmetrically distributed in cutting edge (1) center line both sides, fixed width e is 0.1-0.5mm, vertical chip-breaking (6) is positioned on cutting edge (1) center line, the close clamping face (5) of one end, and its fixed width c is 0.1-0.3mm.

2. according to claim 1ly a kind ofly be used for rough machined upright installation and press from both sides five sword cutter blades, it is characterized in that: described chamfered edge (4) angle γ is that 10-15 °, fixed width b are 0.02-0.1mm; Cutting edge (1) fixed width w is that 0.5-4mm, angle α are 6-8 °, and fixed angle β is 0.5-3 °; The vertical chip-breaking of point width (6) is that 1.5-5mm, vertical height a are 0.4-0.7mm near the length L of clamping face (5) one ends.

3. according to claim 1ly a kind ofly be used for rough machined upright installation and press from both sides five sword cutter blades, it is characterized in that: described circumscribed circle diameter D is divided into two kinds of 24mm and 34mm, when wherein circumscribed circle diameter is 24mm, corresponding cutting edge (1) fixed width w is 0.5-3mm, and circumscribed circle diameter is when being 34mm, and corresponding cutting edge (1) fixed width w is 1.5-4mm.