CN204818291U - PCBN reamer - Google Patents

Abstract

The utility model provides a PCBN reamer, a serial communication port, including handle of a knife and work portion, work portion no. 1 serves to open has first chip groove and second chip groove, is equipped with the blade in the work portion, the blade is made by the PCBN material, the one end of blade be 14 circular, the other end is squarely, the cutting edge includes horizontal cutting edge and slope cutting edge, the utility model discloses simple structure, reasonable in design, blade adopt the PCBN material to make, have the heat stability very high higher hardness, chemical inertness and high temperature under, and it is good to cut the angle simultaneously, and the chip removal passageway is unblocked, in cutting process, can effectively reduce friction and reduce the vibration, and the chip removal is smooth and easy, and the rapid heat dissipation has improved cutting precision, the cutting speed of reamer, and the difficult reamer that causes crumbles simultaneously, and life is longer, and the change frequency is lower, has reduced the cutting cost.

Description

A kind of PCBN reamer

Technical field

The utility model designs a kind of reamer, particularly a kind of PCBN reamer.

Background technology

Reamer has one or more cutter tooth, in order to excise the rotary cutter of hole surface sheet metal, there is the rotation finishing tool of straight sword or helical edges, for reaming or repair hole, because cutting output its requirement on machining accuracy few is usually above drill bit. can manual operation or be arranged on drilling machine work.In daily cutting process, the reamer now used affects by its material, cut fluency not high, easily crumble, standard reamer there will be the problem of chip removal difficulty in process in using simultaneously, the easy scratch machined surface of chip of blocking, not only has a strong impact on working (machining) efficiency, also improves production cost simultaneously.

Utility model content

For the problems referred to above, a kind of PCBN reamer that the utility model proposes.

For solving above technical problem, the technical scheme that the utility model provides is:

A kind of PCBN reamer, it is characterized in that, comprise handle of a knife and operate portions, described handle of a knife is cylindrical, its cylindrical diameter is R1, described R1 is 14mm, one end of handle of a knife is provided with the first chamfering, described first chamfering is 45 °, described operate portions and handle of a knife are integral type structure, operate portions is cylindrical, its one end has the first chip area and the second chip area, described first chip area quantity is 2, and it is symmetrical about reamer axis L-L, first chip area comprises clearance surface one and clearance surface two, described clearance surface one and clearance surface two are angularly α, described α is 108 ° ~ 113 °, clearance surface one is provided with insert groove, blade is provided with in described insert groove, described second chip area ringwise, second chip area is vertical with the first chip area,

Described blade is made up of PCBN material, blade is sintered to fix in insert groove, the length of blade entirety and be highly respectively D and H, described D:H=1:0.44, one end of blade is the circle of 1/4, the other end is square, one end that blade is square is provided with blade, described blade comprises horizontal knife and inclined edge, the angle that described horizontal knife and inclined edge are is β, described β is 130 ° ~ 135 °, the vertical tread of horizontal knife is D1, described D1 is 1.1mm, the vertical tread of inclined edge is D2, described D2 is 0.4mm, the side of horizontal knife is provided with the second chamfering, described second chamfering is 40 ° ~ 45 °.

The beneficial effects of the utility model are:

A kind of PCBN reamer that the utility model proposes, its structure is simple, reasonable in design, blade adopts PCBN material to make, and has the heat endurance under very high higher hardness, chemical inertness and high temperature, and cutting angle is good simultaneously, channel of chip removal is unimpeded, in working angles, effectively can reduce and rubs and reduce vibration, chip removal is smooth and easy, rapid heat dissipation, improves the cutting precision of reamer, cutting rate, not easily cause reamer to crumble simultaneously, longer service life, replacement frequency is lower, reduces cutting cost.

Accompanying drawing explanation

Fig. 1 the utility model schematic diagram.

Fig. 2 operate portions schematic diagram.

Fig. 3 blade schematic diagram.

Detailed description of the invention

A kind of PCBN reamer as shown in the figure, it is characterized in that, comprise handle of a knife 1 and operate portions 2, described handle of a knife 1 is cylindrical, its cylindrical diameter is R1, described R1 is 14mm, one end of handle of a knife 1 is provided with the first chamfering 3, described first chamfering 3 is 45 °, described operate portions 2 and handle of a knife 1 are integral type structure, operate portions 2 is cylindrical, its one end has the first chip area 4 and the second chip area 5, described first chip area 4 quantity is 2, and it is symmetrical about reamer axis L-L, first chip area 4 comprises clearance surface 1 and clearance surface 2 42, described clearance surface 1 and clearance surface 2 42 are angularly α, described α is 108 ° ~ 113 °, clearance surface 1 is provided with insert groove 6, blade 7 is provided with in described insert groove 6, described second chip area 5 ringwise, second chip area 5 is vertical with the first chip area 4,

Described blade 7 is made up of PCBN material, blade 7 is sintered to fix in insert groove 6, the length of blade 7 entirety and be highly respectively D and H, described D:H=1:0.44, one end of blade 7 is the circle of 1/4, the other end is square, one end that blade 7 is square is provided with blade 8, described blade 8 comprises horizontal knife 81 and inclined edge 82, the angle that described horizontal knife 81 and inclined edge 82 are is β, described β is 130 ° ~ 135 °, the vertical tread of horizontal knife 81 is D1, described D1 is 1.1mm, the vertical tread of inclined edge 82 is D2, described D2 is 0.4mm, the side of horizontal knife 81 is provided with the second chamfering 9, described second chamfering 9 is 40 ° ~ 45 °.

A kind of PCBN reamer that the utility model proposes, its structure is simple, reasonable in design, blade adopts PCBN material to make, and has the heat endurance under very high higher hardness, chemical inertness and high temperature, and cutting angle is good simultaneously, channel of chip removal is unimpeded, in working angles, effectively can reduce and rubs and reduce vibration, chip removal is smooth and easy, rapid heat dissipation, improves the cutting precision of reamer, cutting rate, not easily cause reamer to crumble simultaneously, longer service life, replacement frequency is lower, reduces cutting cost.

The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.

Claims (1)

1. a PCBN reamer, it is characterized in that, comprise handle of a knife and operate portions, described handle of a knife is cylindrical, its cylindrical diameter is R1, described R1 is 14mm, one end of handle of a knife is provided with the first chamfering, described first chamfering is 45 °, described operate portions and handle of a knife are integral type structure, operate portions is cylindrical, its one end has the first chip area and the second chip area, described first chip area quantity is 2, and it is symmetrical about reamer axis L-L, first chip area comprises clearance surface one and clearance surface two, described clearance surface one and clearance surface two are angularly α, described α is 108 ° ~ 113 °, clearance surface one is provided with insert groove, blade is provided with in described insert groove, described second chip area ringwise, second chip area is vertical with the first chip area,

Described blade is made up of PCBN material, blade is sintered to fix in insert groove, the length of blade entirety and be highly respectively D and H, described D:H=1:0.44, one end of blade is the circle of 1/4, the other end is square, one end that blade is square is provided with blade, described blade comprises horizontal knife and inclined edge, the angle that described horizontal knife and inclined edge are is β, described β is 130 ° ~ 135 °, the vertical tread of horizontal knife is D1, described D1 is 1.1mm, the vertical tread of inclined edge is D2, described D2 is 0.4mm, the side of horizontal knife is provided with the second chamfering, described second chamfering is 40 ° ~ 45 °.