CN206912321U - Curved surface forming process tool - Google Patents

Abstract

The utility model discloses curved surface forming process tool, the shank being connected comprising head and with head, head is provided with chip area and the entity part for forming chip area, cutting edge is formed at chip area and the intersection of entity part, cutting edge is provided with rake face and rear knife face, the position for being used to contact with workpiece on the rake face of cutting edge has anterior angle, and the position for being used to contact with workpiece on the rear knife face of cutting edge has two relief angles, respectively the first relief angle and the second relief angle.Chip area is screw type chip area, and the helical angle of screw type chip area is 60 °, and the outer subtended angle degree of helical flute is 30 °.The curved surface forming process tool crudy and appearance stablity, big radian curved surface simultaneous manufacturing product, the curvature precision of curved surface is high, the smooth no chatter mark of machined surface quality；Dimensional profile is stable, high in machining efficiency, greatly reduces production cost, is suitably applied the high-volume processing of product.

Description

Curved surface forming process tool

Technical field

It the utility model is related to a kind of curved surface forming process tool.

Background technology

At present, aviation interior trim aluminum alloy part modeling structure is complicated, the manufacturing process in type face, processing efficiency, machining accuracy All it is that the difficult point of manufacture, the particularly complexity of its curved surface and machining accuracy are high with machined surface quality, becomes typical Hardly possible processing part.

3D Machining of Curved Surface is often carried out using rose cutter for this kind of product, can often there is following defect：First：For Thin-walled parts do not support, and rigidity is poor, under high rotating speed milling effect, are also easy to produce chatter mark, cause surface roughness relatively low.The Two：Part material is mostly aluminium alloy, and when the forward and backward angle of bulb milling cutter is too small, cutting edge is not sharp enough, is sent out in milling process Extruding is given birth to, can cause to produce to give birth into withdrawing to connect knife burr, if subsequently adding polishing operation, processing efficiency can be influenceed.3rd：Milling Vibration-extrusion also results in deformation of products during cutting, and makes dimensional profile degree overproof.4th：The efficiency of 3D Machining of Curved Surface is low, surely Qualitative difference.

Therefore, it is necessary to a kind of curved surface forming process tool is designed, to meet the process requirements of this kind of product.

Utility model content

The purpose of this utility model is to overcome the shortcomings of the prior art, there is provided a kind of curved surface forming process tool.

The purpose of this utility model is achieved through the following technical solutions：

Curved surface forming process tool, feature are：The shank being connected comprising head and with head, the head are provided with chip removal Cutting edge, the cutting edge are formed at the intersection of groove and the entity part for forming chip area, chip area and entity part Being used for the position that is contacted with workpiece provided with rake face and rear knife face, on the rake face of cutting edge has an anterior angle, after cutting edge Knife face position has two relief angles, respectively the first relief angle and the second relief angle.

Further, above-mentioned curved surface forming process tool, wherein, the anterior angle is 8~15 °.

Further, above-mentioned curved surface forming process tool, wherein, first relief angle be 10~15 °, described second Relief angle is 28~40 °.

Further, above-mentioned curved surface forming process tool, wherein, second relief angle is provided with the 3rd face.

Further, above-mentioned curved surface forming process tool, wherein, it is provided with chip pocket in the chip area.

Yet further, above-mentioned curved surface forming process tool, wherein, the chip area is screw type chip area, spiral The helical angle of type chip area is 60 °, and the outer subtended angle degree of helical flute is 30 °.

The utility model has the advantages of notable and beneficial effect compared with prior art, embodies in the following areas：

1. the curved surface forming process tool crudy and appearance stablity, big radian curved surface simultaneous manufacturing product is bent The curvature precision in face is high, the smooth no chatter mark of machined surface quality；Dimensional profile is stable, high in machining efficiency, greatly reduces production Cost, it is suitably applied the high-volume processing of product；

2. cutting edge has multiple-cutting-edge, anterior angle makes milling cutter cutting sharp, reduces elastic deformation and chip flow when aluminium skimmings are cut Frictional resistance when going out and above；Relief angle reduces the friction of knife face and workpiece after milling cutter；This fit on helical flute, makes chip removal It is more smooth, reduce damage of the secondary extrusion of cutting to product surface and cutter；

3. the design of outer 30 ° of the subtended angle degree of helical flute, while cutting ability is ensured, it is strong also to greatly strengthen cutter Degree；

4. alternative 3D Machining of Curved Surface, greatly improving the production efficiency of curved face product, manufacturing cost is reduced, may extend away design It is applied to the Machining of Curved Surface of all aerolite products.

Brief description of the drawings

Fig. 1：The axle geodesic structure schematic diagram of the utility model cutter；

Fig. 2：The main structure diagram of the utility model cutter；

Fig. 3：The side structure schematic view of the utility model cutter；

Fig. 4：The application schematic diagram of the utility model cutter.

The implication of each reference see the table below in figure：

Embodiment

In order to which the technical characteristics of the utility model, purpose and effect are more clearly understood, it is detailed now to compare accompanying drawing Illustrate specific embodiment.

As shown in Figures 1 to 3, curved surface forming process tool, the shank 3 being connected comprising head and with head, the head Entity part provided with chip area 2 and for forming chip area, chip area 2 and formation cutting edge 1 at the intersection of entity part, Cutting edge 1 is provided with rake face and rear knife face 4, and the position for being used to contact with workpiece on the rake face of cutting edge 1 has anterior angle, preceding Angle is 8~15 °, and the position of rear knife face 4 of cutting edge has two relief angles, respectively the first relief angle and the second relief angle, the first relief angle, Second relief angle refers to First Transition angle, the second transition angle respectively, plays empty avoiding, prevents relief angle from interfering product, produces over-cutting, First relief angle is 10~15 °, and the second relief angle is 28~40 °, and the second relief angle is provided with the 3rd face.

Wherein, chip area 2 is screw type chip area, and the helical angle of screw type chip area is 60 °, the outer subtended angle of helical flute Spend for 30 °, outer subtended angle degree refers to the chip removal angle of the v-groove.Chip pocket is provided with chip area 2.

During concrete application, as shown in figure 4, shown in the direction of rotation A of curved surface forming cutter, shown in direction of feed motion B, greatly Radian curved surface simultaneous manufacturing part 5, the curvature precision of curved surface 6 is high, the smooth no chatter mark of machined surface quality.Dimensional profile is steady It is fixed, it is high in machining efficiency, production cost is greatly reduced, is adapted to the production in enormous quantities of application product.

Cutting edge 1 has four swords, and front-and-back angle has 60 ° of helical angles, and anterior angle makes milling cutter cutting sharp, reduced when aluminium skimmings are cut When elastic deformation and chip are flowed out with frictional resistance above；Relief angle reduces the friction of knife face and workpiece after milling cutter.This fit on Helical flute, make chip removal more smooth, reduce damage of the secondary extrusion of cutting to product surface and cutter.Outside helical flute The design that 30 ° of subtended angle degree, tool strength is also greatly strengthen while cutting ability is ensured.

In summary, the curved surface forming process tool crudy and appearance stablity, alternative 3D Machining of Curved Surface, are carried significantly The production efficiency of high curved face product, reduces manufacturing cost, and the curved surface that extensible design is applied to all aerolite products adds Work.

It should be noted that：Preferred embodiment of the present utility model is the foregoing is only, is not limited to this practicality New interest field；Description more than simultaneously, should can understand and implement for the special personage of correlative technology field, therefore its It should be included in claim without departing from the equivalent change or modification completed under the spirit disclosed in the utility model In.

Claims (4)

1. curved surface forming process tool, it is characterised in that：The shank being connected comprising head and with head, the head are provided with row Cutting edge, the cutting are formed at the intersection of bits groove and the entity part for forming chip area, chip area and entity part Sword is provided with rake face and rear knife face, and the position for being used to contact with workpiece on the rake face of cutting edge has an anterior angle, anterior angle for 8~ 15 °, the rear knife face position of cutting edge has two relief angles, respectively the first relief angle and the second relief angle, and first relief angle is 10 ~15 °, second relief angle is 28~40 °.

2. curved surface forming process tool according to claim 1, it is characterised in that：Second relief angle is provided with the 3rd Face.

3. curved surface forming process tool according to claim 1, it is characterised in that：Chip pocket is provided with the chip area.

4. curved surface forming process tool according to claim 1, it is characterised in that：The chip area is screw type chip removal Groove, the helical angle of screw type chip area is 60 °, and the outer subtended angle degree of helical flute is 30 °.