CN2093052U - Combined reamer - Google Patents

Abstract

The utility model discloses a combined reamer, it is by the cutter body with install diamond hole whet a knife, carbide reamer and the preceding guide body on the cutter body and constitute, the rear portion of cutter body is the back guide body of cutter also. The product can complete two kinds of cutting simultaneously in one machining process, and has fast work efficiency, high precision and easy maintenance, and is especially suitable for machining main shaft hole of internal combustion engine.

Description

Combined reamer

The utility model belongs to the cutting-tool engineering field that is used for lathe or grinding machine.

The aperture knife tool that is used for machine parts such as internal combustion engine main shaft at present mainly contains reamer, boring cutter and grinding knife tool, these cutters all are single structures, fine finishining to the internal combustion engine spindle hole generally needs two procedures, as adopting the cutting of carbide alloy hinge earlier, carry out the cutting of Buddha's warrior attendant stone mill again, inefficiency, cutter is fragile, and machining accuracy is difficult for grasping.

The purpose of this utility model provides the reamer that a kind of work efficiency is fast, precision is high.

Solution of the present utility model is, carbide-tipped reamer and preceding guide way are installed in the front portion of cutter hub, the diamond endoporus also is installed on cutter hub whets a knife.

The utility model time processing process can be finished cutting of carbide alloy hinge and the cutting of Buddha's warrior attendant stone mill simultaneously, and guiding before and after adopting, and has improved operating efficiency and machining accuracy greatly, is specially adapted to the processing of internal combustion engine spindle hole.Cutter is convenient to maintenance, cost saving.

Accompanying drawing has provided embodiment of the present utility model, wherein:

Fig. 1 is an overall structure schematic diagram of the present utility model;

Fig. 2 is the structure of the cutter body schematic diagram;

The structural representation that Fig. 3 whets a knife for the diamond endoporus;

Fig. 5 is the vertical view of Fig. 3;

Fig. 4 is the structural representation of carbide-tipped reamer;

Fig. 6 is the vertical view of Fig. 4;

Fig. 7 is the structural representation of preceding guide way;

Fig. 8 is the vertical view of Fig. 7.

The rear portion of cutter hub (1) is cylindrical, during work as the back guide way of cutter.The anterior back segment of cutter hub (1) is a cone, is set with the sharpening of diamond endoporus (2) and carbide-tipped reamer (4) on it, and the two is radially fixing by taper bolt (7), and packing ring (3) also is housed between the two.The anterior leading portion of cutter hub (1) is a cylinder, and preceding guide way (5) is housed on it.The leading portion of cutter hub (1) is threaded, and nut (6) is housed on it, be used for the diamond endoporus whet a knife (2), carbide-tipped reamer (4) and before guide way (5) axially fasten.On whetting a knife the outer surface of (2), the diamond endoporus has six grooves (8) with axioversion, in order to storage chip, the wearing and tearing that reduce to whet a knife.Outer surface at preceding guide way (5) is inlaid with 12 hard alloy blocks (9), to strengthen its wearability.

Claims (2)

1, a kind of combined type reamer, have cutter hub (1) and be installed in the cutter hub front portion carbide-tipped reamer (4) and before guide way (5), it is characterized in that: diamond endoporus whet a knife (2) also is installed on cutter hub (1).

2, combined type reamer according to claim 1 is characterized in that: have inclined notches formed on the outer surface of said diamond endoporus sharpening (2).

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