CN2885474Y - Multiple edge-cutting reamer with chip breaker groove - Google Patents

Abstract

A multiple-edged cutting reamer with a chip-breaker groove belongs to a reamer of mechanical processing technology field for processing taper hole, comprising cutting edges, a chip containing groove, a chip-breaker groove, and a handle, wherein the cutting edges are parallel to or take a 1:50 angle to the reamer bar, the cutting edges is arranged homogeneously in the radial direction of the reamer bar, the chip containing groove is positioned between the two adjacent cutting edges, the chip-breaker grooves which are positioned homogeneously in the length direction of each cutting edge are not on the same circumference and keep bias of some extent, the handle is positioned on another part of the reamer bar. The cutting reamer is capable of cutting fast, reducing resistance, is not easy to break, and has high practical value.

Description

A kind of multiple cut reamer that has chip-breaker

One, technical field

The utility model belongs to a kind of multiple cut reamer that has chip-breaker that relates in the Machining Technology field.

Two, background technology

Machining is the concrete behavior of machine-building, car is arranged, clamps, mills, multiple work posts such as plane, mill, brill, and the cutting reamer is used for pin hole processing, the cutting of cutting reamer have four swords, six swords or the like.

The prior art the most approaching with the utility model is the general common reamer that can find everywhere on the domestic and international market, as shown in Figure 1: comprise cutting edge 1, chip pocket 2, handle of a knife 3.The axially parallel of cutting edge 1 and knife bar or become 1: 50 angle occupies the very most of of knife bar length, and the reamer cutting edge radially is equally distributed knife bar, and the groove between the adjacent two-edged is called chip pocket 2, and handle of a knife 3 is at the other end of knife bar.

Common multiple cut reamer, the subject matter that exists is: the cutting resistance that adds man-hour is big, feed slow, processing difficulties, particularly during deep hole processing since the contact area of cutter and workpiece big, cut reamer and fracture easily, have a strong impact on production, cause economic loss simultaneously.

Three, summary of the invention

In order to overcome the defective that prior art exists, the purpose of this utility model is that mediation fast to the cutting of metal, reduces to add the resistance in man-hour, guarantees the safety of cutter in process, a kind of novel cutting reamer of ad hoc meter.

The technical problems to be solved in the utility model is: a kind of multiple cut reamer that has chip-breaker is provided.The technical scheme of technical solution problem is as shown in Figure 2: comprise cutting edge 4, chip pocket 5, chip-breaker 6, handle of a knife 7.Cutting edge 4 is parallel with the axis of knife bar or become 1: 50 angle, cutting edge radially is equally distributed knife bar, groove between the two adjacent cutting edges is a chip pocket 5, even distribution chip-breaker 6 on the length of each cutting edge, the position of the chip-breaker 6 on two adjacent cutting edges is not on same circle.Axially keeping certain dislocation deviation, handle of a knife 7 is at the other end of knife bar.

The operation principle explanation, the existence of chip-breaker, make the cutting receiving area reduce, chip-breaker is dislocatedly distributed on different cutting edges, make in process, cutting edge in front processing less than the place, a back cutting edge just can be worked into, thereby reduce to cut the processing resistance of reamer, feed velocity is accelerated.

Good effect of the present utility model in the process, reduces to process resistance, and feed velocity is fast, enhances productivity, and reamer frangibility not has higher utility during cutting.

Four, description of drawings

Fig. 1 is the structural representation of prior art.

Fig. 2 is a structural representation of the present utility model.

Five, the specific embodiment

The utility model is implemented by structure shown in Figure 2.Comprise cutting edge 4, chip pocket 5, chip-breaker 6, handle of a knife 7 among Fig. 2, the material of cutting reamer adopts high speed steel W 6 or W9.For example: the cutting edge 4 of three swords cutting reamer radially is being uniform, angle between two adjacent cutting edges is 120 °, spacing between two chip-breakers 6 adopts 1mm, just the length of cut between two chip-breakers adopts 1mm, the shape semicircle, the width of groove is a diameter of a circle, adopts 1mm.The cutting edge of straight reamer and the axially parallel of knife bar, the axial angle that becomes 1: 50 of the cutting edge of taper reamer and knife bar.

And for example: four swords cutting reamer cutting edge 4 radially is being equally distributed, angle between two adjacent cutting edges is 90 degree, spacing between two chip-breakers 6 on the cutting edge 4 adopts 1mm, just the length of cut between two chip-breakers 6 is 1mm, the shape of groove adopts semicircle, and the width of groove is a diameter of a circle, adopts 1mm, the cutting edge of straight reamer and the axially parallel of knife bar, the axial angle that becomes 1: 50 of the cutting edge of taper reamer and knife bar.

Claims (1)

1. A kind of multiple cut reamer that has chip-breaker, comprise cutting edge, chip pocket, handle of a knife, it is characterized in that also comprising chip-breaker (6), the axially parallel of cutting edge (4) and knife bar or become 1: 50 angle, cutting edge (4) radially is equally distributed knife bar, groove between adjacent two cutting edges (4) is chip pocket (5), even distribution chip-breaker (6) on the length direction of each cutting edge (4), the position of the chip-breaker (6) on adjacent two cutting edges (4) is not on same circle, axially keeping certain deviation, handle of a knife (7) is positioned at the other end of knife bar.