CN215238089U

CN215238089U - Four-blade spiral dovetail milling cutter for aluminum

Info

Publication number: CN215238089U
Application number: CN202121268698.7U
Authority: CN
Inventors: 蒋叶; 恽鹏飞; 夏富; 谢红锋; 杨小双
Original assignee: Changzhou Kaituo Tools Co ltd
Current assignee: Changzhou Kaituo Tools Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-12-21
Anticipated expiration: 2031-06-08

Abstract

The utility model belongs to the technical field of the cutting tool technique and specifically relates to an aluminium is with four-edged spiral forked tail milling cutter, including handle of a knife and tool bit, the tool bit sets up in handle of a knife one end, and the tool bit includes stem and cutting edge, and the cutting edge has four and is the heliciform equipartition and is peripheral at the stem, offers the chip groove between the adjacent cutting edge, and the chip groove is the heliciform setting along with the cutting edge, and the cutting edge includes side edge and end edge, and side edge and end edge are 45 settings, and the tool bit width is progressively steadilyd decrease by end edge to side edge, and the side edge includes cutting face and back of a knife edge, and the back of a knife edge is by a slope of being close to the flank to one side of keeping away from the cutting face, and the angle of inclination is 15~ 20. This forked tail milling cutter is through four sword helical structure for the cutting force is steady balanced, has increased the clearance of handle of a knife and work piece, makes the coolant liquid easily circulate, and the cooling effect is good, cutter long service life.

Description

Four-blade spiral dovetail milling cutter for aluminum

Technical Field

The utility model belongs to the technical field of the cutting tool technique and specifically relates to an aluminium is with four-blade spiral forked tail milling cutter.

Background

A milling cutter is a rotary cutter used for milling and provided with one or more cutter teeth, and each cutter tooth cuts off the allowance of a workpiece intermittently in sequence during operation. The milling cutter is mainly used for processing planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine.

When the existing dovetail milling cutter is used for cutting, the gap between the cutter handle and a workpiece is small, in addition, the chips are blocked, cooling liquid is difficult to timely cool the cutter head in a runner manner, the temperature of the cutter head in a short time is overhigh, and the service life and the cutting quality of the cutter head are influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of present forked tail milling cutter's handle of a knife and work piece clearance undersize influence coolant liquid circulation, the utility model provides an aluminium is with four-blade spiral forked tail milling cutter, through four-blade helical structure solve the problem.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an aluminium is with four-edged spiral forked tail milling cutter, includes handle of a knife and tool bit, and the tool bit setting is in handle of a knife one end, and the tool bit includes stem and cutting edge, and the cutting edge has four and be heliciform equipartition and is peripheral at the stem, and is adjacent set up the chip groove between the cutting edge, and the chip groove is the heliciform setting along with the cutting edge, the cutting edge includes side edge and end edge, and side edge and end edge are 45 settings, the tool bit width is progressively steadilyd decrease by end edge to side edge.

Further, the side edge comprises an edge face and an edge back, the edge back inclines from one side close to the edge face to one side far away from the edge face, and the inclination angle is 15-20 degrees.

Further, the helix angle of the cutting edge is 20-30 degrees.

Furthermore, the width of the side edge is 0.15-0.2 mm.

Furthermore, a transition fillet is arranged on the connecting surface of the tool bit and the tool handle.

Furthermore, the periphery of the knife handle is provided with an auxiliary chip groove extending from the chip groove, and the width of the auxiliary chip groove is smaller than that of the chip groove.

The utility model has the advantages that,

(1) by adopting the four-blade spiral structure, the cutting force is stable and balanced, the processing effect is good, and the cutting is stable and reliable;

(2) the cutter head is obliquely arranged, so that the gap between the cutter handle and the workpiece is increased, cooling liquid is easy to circulate, the cooling effect is good, and the service life of the cutter is long;

(3) through the design of the large relief angle of the cutting edge, the friction between the edge surface and a workpiece is reduced, the deformation of the side edge is reduced, and the processing precision is ensured;

(4) through the cooperation of chip groove and vice chip groove, prevent that the piece from blockking up for the chip removal is more smooth, improves cutting effect.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the tool bit of the present invention;

fig. 3 is a front view of the present invention;

fig. 4 is a left side view of the present invention;

fig. 5 is a schematic view of the processing state of the present invention;

in the figure, 1, a tool shank, 2, a tool bit, 3, a cutting edge, 31, a side edge, 311, a blade surface, 312, a blade back, 32, a bottom edge, 4, a chip groove, 5, a transition fillet and 6, an auxiliary chip groove are arranged.

Detailed Description

As shown in fig. 1 and 5, a four-edge spiral dovetail milling cutter for aluminum, including handle of a knife 1 and tool bit 2, tool bit 2 sets up in 1 one end of handle of a knife, and tool bit 2 includes stem and cutting edge 3, and cutting edge 3 has four and is the heliciform equipartition at stem periphery, offers chip groove 4 between the adjacent cutting edge 3, and chip groove 4 is the heliciform setting along with cutting edge 3, and cutting edge 3 includes side edge 31 and end edge 32, and side edge 31 and end edge 32 are 45 settings, and tool bit 2 width is progressively diminished by end edge 32 to side edge 31.

Through the equipartition at stem outlying four-edged spiral cutting edge 3, carry out stable reaming operation, the equilibrium is good, in addition the coolant liquid can be followed and circulated smoothly in the clearance of handle of a knife 1 with the work piece for 2 radiating effect of tool bit are good, thereby cutting effect is good, cutter long service life.

An auxiliary chip groove 6 extending from the chip groove 4 is formed in the periphery of the cutter handle 1, and the width of the auxiliary chip groove 6 is smaller than that of the chip groove 4. The extension chip removal groove 4 with the spiral arrangement and the gradually decreased width is beneficial to more smooth chip removal, so that the heat dissipation is faster.

As shown in FIGS. 2 and 4, the side edge 31 comprises a blade face 311 and a blade back 312, wherein the blade back 312 inclines from a side close to the blade face 311 to a side far from the blade face 311, and the inclination angle is 15-20 degrees. The edge back 312 with a large relief angle is adopted, so that the edge surface 311 has high strength and can be processed by large feed.

The helix angle of the cutting edge 3 is 20-30 degrees. The spiral angle design makes the cutting easier.

The side edge 31 has a width of 0.15 to 0.2 mm. The edge face is pretreated to improve the roughness of the edge face, so that the edge face does not stick to chips.

As shown in fig. 3, a transition fillet 5 is arranged on the connecting surface of the tool bit 2 and the tool shank 1. Avoid the work piece wire drawing, reduce tool bit fracture probability.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides an aluminium is with four-edged spiral forked tail milling cutter, includes handle of a knife (1) and tool bit (2), and tool bit (2) set up in handle of a knife (1) one end, characterized by, tool bit (2) include stem and cutting edge (3), and cutting edge (3) have four and be the heliciform equipartition in the stem periphery, adjacent offer chip groove (4) between cutting edge (3), chip groove (4) are the heliciform setting along with cutting edge (3), cutting edge (3) are including side sword (31) and end sword (32), and side sword (31) and end sword (32) are 45 settings, tool bit (2) width is progressively degressive by end sword (32) to side sword (31).

2. The four-edged screw dovetail milling cutter for aluminum according to claim 1, wherein the side edge (31) includes an edge surface (311) and a back edge (312), the back edge (312) is inclined from a side close to the edge surface (311) to a side far from the edge surface (311), and the inclination angle is 15 to 20 °.

3. The four-edged helical dovetail cutter for aluminum according to claim 1, wherein the helix angle of the cutting edge (3) is 20 to 30 °.

4. The aluminum four-blade helical dovetail cutter according to claim 1, wherein the width of the side blade (31) is 0.15-0.2 mm.

5. The aluminum four-edge spiral dovetail milling cutter as claimed in claim 1, wherein transition fillets (5) are formed on the connecting surface of the cutter head (2) and the cutter handle (1).

6. The aluminum four-blade spiral dovetail milling cutter according to claim 1, wherein the periphery of the cutter handle (1) is provided with an auxiliary chip groove (6) extending from the chip groove (4), and the width of the auxiliary chip groove (6) is smaller than that of the chip groove (4).