CN109663979A - A kind of stepped reamer of three-dimensional cutting - Google Patents

Abstract

The present invention relates to cutting tool fields, provide a kind of stepped reamer of three-dimensional cutting.The technical solution adopted is that: a kind of stepped reamer of three-dimensional cutting, the ontology that can be connect with process equipment including one end, the ontology is equipped with more valves with the cutting structure of the axle center circumference array of the ontology, the cutting structure includes the first cutting portion set on its end, and the rear portion of first cutting portion, which is equipped with, to be connected thereto and diameter is greater than the cutting portion root column of first cutting portion；The chamfer cutting portion that chamfering can be carried out to the edge after workpiece groove milling is equipped between first cutting portion and cutting portion root column；The front of first cutting portion is equipped with the first cutting face, and the front edge in first cutting face is equipped with end cutting edge；Chip space is equipped between the adjacent cutting structure；This programme can complete the three-dimension process of plane and side, avoid frequently having with tool changing, improve processing efficiency.

Description

A kind of stepped reamer of three-dimensional cutting

Technical field

The present invention relates to cutting tool more particularly to a kind of stepped reamers of three-dimensional cutting.

Background technique

During cutting tool, for enterprise, efficiency, time are exactly cost, decide the height of profit；For logical It crosses for the technique of reamer cutting workpiece, the difference in process for different location requires, and needs using to different hinges Knife, the process for producing replacement can waste a large amount of artificial and times, reduce working efficiency.How to be realized on a reamer a variety of The processing of situation and remove the different cutters of replacement from, become long-term research direction.

Summary of the invention

To solve existing deficiency, the present invention provides a kind of stepped reamer of three-dimensional cutting, structurally reasonable, can be complete At the processing of multiple working procedure, the three-dimension process including can be realized side and plane.The present invention is suitable for cutting tool field.

The technical scheme adopted by the invention is that: a kind of stepped reamer of three-dimensional cutting, including one end can be with processing The ontology of equipment connection, the ontology are equipped with more valves with the cutting structure of the axle center circumference array of the ontology, it is characterized in that: The cutting structure includes the first cutting portion set on its end, and the rear portion of first cutting portion, which is equipped with, to be connected thereto and diameter Greater than the cutting portion root column of first cutting portion, the rear portion of the cutting portion root column connects the ontology；First cutting The chamfer cutting portion that chamfering can be carried out to the edge after workpiece groove milling, the chamfer cutting portion are equipped between portion and cutting portion root column By the first cutting portion straight line excessively to the cutting portion root column；The front of first cutting portion is equipped with the first cutting face, described The front in chamfer cutting portion is equipped with chamfer cutting face, and first cutting face is with the smooth connection in chamfer cutting face and for across institute State the section in ontology axle center；The front edge in first cutting face is equipped with end cutting edge；The adjacent cutting structure it Between be equipped with the second chip space.

More preferably, a kind of stepped reamer of three-dimensional cutting, it is characterized in that: first cutting face and chamfer cutting face The front of cutting structure is constituted, second chip space is by the front of the cutting structure and the back of cutting structure adjacent thereto Face is constituted, and the back side of the cutting structure is from the positive inward flange of the cutting structure to the outer edge of cutting structure in indent Arc is excessive.

More preferably, a kind of stepped reamer of three-dimensional cutting, it is characterized in that: the front end of second chip space is equipped with one Facilitate the first chip space of the end cutting edge processing chip removal.

More preferably, a kind of stepped reamer of three-dimensional cutting, it is characterized in that: axis of the cutting structure along the ontology The setting of heart circumference array, the cutting structure are six.

The beneficial effect of technical solution of the present invention is: its is structurally reasonable, the first cutting portion, chamfer cutting portion and end cutting Side can complete the three-dimension process of plane and side, avoid frequently having with tool changing, improve processing efficiency；At the same time, lead to It crosses the first chip space and the second chip space and processing scrap is effectively discharged, avoid reamer stuck, prevent reamer from damaging.

Detailed description of the invention

Below with reference to the drawings and specific embodiments, the present invention is further illustrated:

Fig. 1 is three-dimensional structure diagram of the invention；

Fig. 2 is the end visual angle figure of cutting structure.

Shown in figure label are as follows:

1- ontology, 2- cutting structure, the first cutting portion of 21-, the first cutting portion of 211-, the end 212- cutting edge, 22- cutting portion root Column, 23- chamfer cutting portion, 231- chamfer cutting face, the first chip space of 24-, the second chip space of 25-.

Specific embodiment:

The present invention provides a kind of stepped reamer of three-dimensional cutting, is suitable for cutting tool field.The present invention can be by as follows Mode is implemented:

As shown in Figs. 1-2: cutting structure 2 is described to cut with the front set on ontology 1 of the axle center Circle-Array column of the ontology 1 Structure 2 is cut to be made of the first cutting portion 21, chamfer cutting portion 23 and cutting portion root column 22 from front to back；Cutting portion root column 22 it is straight Diameter is greater than first cutting portion 21, and cutting portion root column 22 is not involved in cutting workpiece, connects at the rear portion of the cutting portion root column 22 Then ontology 1；The chamfer cutting portion 23 is by 21 straight line of the first cutting portion excessively to the outer surface side of the cutting portion root column 22 Edge；The front edge in first cutting face 211 is equipped with surface or plane of the end cutting edge 212 for workpieces processing；To Three-dimensional processing is realized, avoids and frequently has with tool changing, improve the efficiency of processing.

The front of first cutting portion 21 is equipped with the first cutting face 211, and the front in the chamfer cutting portion 23 is equipped with Angle cutting face 231, first cutting face 211 is with the smooth connection in chamfer cutting face 231 and for across 1 axle center of ontology Section, i.e., the first cutting face 211 is generally aligned in the same plane with chamfer cutting face 231, and the plane at place cuts through the central axis of ontology 1 Line, when the rotation of cutting structure 2 is processed, the first cutting face 211 is vertical with chamfer cutting face 231 to cut with workpiece stress, in this way The depth of cutting can effectively be controlled.

Second chip space 25 is set between adjacent cutting structure 2；First cutting face 211 and chamfer cutting face 231 constitute the front of cutting structure 2, front and adjacent thereto cutting of second chip space 25 by the cutting structure 2 The back side of structure 2 is constituted, and the back side of the cutting structure 2 is from the positive inward flange of the cutting structure 2 to outside cutting structure 2 Edge is excessive in the arc of indent, extends to the surface of the cutting portion root column 22, so as to effectively that processing is useless Bits are discharged to except machining position from cutting portion root column 22, are avoided reamer stuck, are prevented reamer from damaging.

The front end of second chip space 25 is additionally provided with the first chip space 24, and the first chip space 24 is that the wedge angle of an indent is opened Mouthful, facilitate the processing chip removal of the end cutting edge 212, expense considers the easier outside for being discharged to station to be worth doing or is discharged to second In chip space 25.

The cutting structure 2 is arranged along the axle center circumference array of the ontology 1, and cutting structure 2 is set as six in embodiment A, the array setting of equal part increases the closeness of processing, the control reamer displacement being more easier in reamer high-speed rotation Depth, be able to carry out the processing of surface layer lower thickness.

To sum up, the stepped reamer of a kind of three-dimensional cutting provided by the invention, it is structurally reasonable, can complete plane and The three-dimension process of side avoids frequently having with tool changing, improves processing efficiency；At the same time, it by the setting of chip space, keeps away It is stuck to have exempted from reamer, has prevented reamer from damaging.

Claims (4)

1. A step-forming reamer for three-dimensional cutting, comprising a main body (1) whose one end can be connected to a processing device, the main body (1) being provided with multi-lobed cutting tools arranged in a circular array of the axis of the main body (1). The structure (2) is characterized in that: the cutting structure (2) includes a first cutting portion (21) provided at the end thereof, and the rear portion of the first cutting portion (21) is connected with it and has a diameter larger than A cutting part root post (22) of the first cutting part (21), the rear part of the cutting part root post (22) is connected to the main body (1); the first cutting part (21) is connected to the cutting part A chamfering cutting portion (23) capable of chamfering the edge of the workpiece after groove milling is provided between the root posts (22), and the chamfering cutting portion (23) is linearly transitioned from the first cutting portion (21) to the desired position. The cutting part root post (22); the front surface of the first cutting part (21) is provided with a first cutting surface (211), and the front surface of the chamfering cutting part (23) is provided with a chamfering cutting surface (231) , the first cutting surface (211) is connected to the chamfering cutting surface (231) flatly and is a cutting surface passing through the axis of the body (1); the front end edge of the first cutting surface (211) is provided with an end A head cutting edge (212); a second chip flute (25) is provided between the adjacent cutting structures (2). 2. The step forming reamer for three-dimensional cutting according to claim 1, wherein the first cutting surface (211) and the chamfering cutting surface (231) constitute the front surface of the cutting structure (2), so The second chip flute (25) is formed by the front surface of the cutting structure (2) and the back surface of the adjacent cutting structure (2), and the back surface of the cutting structure (2) is formed by the cutting structure (2) The inner edge of the front surface has a concave arc transition to the outer edge of the cutting structure (2). 3. A step-forming reamer for three-dimensional cutting according to claim 1 or 2, characterized in that: the front end of the second chip flute (25) is provided with a cutting edge (212) to facilitate the processing of the end head First chip flute (24) for chip evacuation. 4. A step-forming reamer for three-dimensional cutting according to claim 1 or 2, characterized in that: the cutting structures (2) are arranged in an array along the circumference of the axis of the body (1), and the cutting structures (2) for six.