CN210789411U

CN210789411U - A high-efficient shaping cutter for wingtip chamfer

Info

Publication number: CN210789411U
Application number: CN201921878191.6U
Authority: CN
Inventors: 杨立勋
Original assignee: Chengdu Vino Precision Machinery Co ltd
Current assignee: Chengdu Vino Precision Machinery Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-06-19
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a high-efficient shaping cutter for wingtip chamfer, including the handle of a knife, the anterior segment of handle of a knife is equipped with the sword section, circumference evenly is equipped with a plurality of cutting edges, adjacent two in the sword section space between the cutting edge is the chip groove, the sword section is that circular cone section and diameter reduce forward by the back gradually, the helical angle of cutting edge is 15-30. The utility model discloses a processing cutting edge section design is the cone section and obviously reduces the helical angle of cutting edge, makes the cutting edge can laminate better and treat the wingtip shape position surface of processing product, increases area of contact, and the volume of eating at every turn is showing and is increasing to show improvement machining efficiency, the helical angle that reduces the cutting edge simultaneously makes its machined surface smoother, and processingquality is better.

Description

A high-efficient shaping cutter for wingtip chamfer

Technical Field

The utility model relates to a forming tool for chamfer especially relates to a high-efficient forming tool for wingtip chamfer.

Background

The cutter is a tool used for cutting in mechanical manufacturing, also called as a cutting tool, plays a vital role in surface quality and machining efficiency in machining, and reasonable cutter parameters matched with a corresponding machining process can enable machining to be performed with half the effort, and even achieve unexpected effects.

Some special high-precision parts at present can only be subjected to copying machining through a common cutter such as a milling cutter due to the special-shaped curved surface positions, and can be satisfied for single-piece small-batch products, but the consumption of the cutter and the machining efficiency are serious problems for large-batch products.

For example, the cutting portion of the product is in a wing tip shape, and needs to be chamfered, the surface of the portion in the wing tip shape is an arc-shaped surface and has a compound curved surface with a certain cone angle, and the thickness is very thin (for example, 4.5mm), and if the conventional standard tool is used for machining, the following defects exist: the contact area between the cutter and the cutting part of the product is small, the cutting amount is small each time, the milling amount is small each time, the processing time is long, the surface roughness is not ideal because the spiral angle of the cutter is large, and the product can be damaged because the cutting part is thin and careless.

The defects are caused because as shown in fig. 1 and fig. 2, a cutting edge section is arranged at the front section of a handle 3 of the traditional tool, four spiral cutting edges 1 are uniformly arranged on the cutting edge section in the circumferential direction, a gap between every two adjacent cutting edges 1 is a chip containing groove 2, the spiral angle of each cutting edge 1 is α degrees generally, the cutting edge section of the traditional tool has no taper and cannot meet the requirement that a cutting part has taper, the cutting edge spiral angle of the traditional tool is large, the machining surface is not easy to smooth, the cutting edges of the traditional tool are generally four, the chip containing grooves between every two adjacent cutting edges are small, chip removal is not smooth, the machining surface is rough, and the corner at the front end of the cutting edge section of the traditional tool is a right-angle surface, so that the cutting surface cannot be well protected, and the machining surface is rough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-efficient shaping cutter who is used for wingtip chamfer specially in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a high-efficient shaping cutter for wingtip chamfer, includes the handle of a knife, the anterior segment of handle of a knife is equipped with the cutting edge section, evenly be equipped with a plurality of cutting edges on the cutting edge section circumference, adjacent two space between the cutting edge is the chip groove, the cutting edge section is conical section and diameter reduces by backward forward gradually, the helix angle of cutting edge is 15-30.

Furthermore, in order to increase the chip groove area and the core thickness, the number of the cutting edges is 3, and the transition surface between every two adjacent cutting edges is an S-shaped surface, so that the chips can be discharged in the chip grooves with larger areas more easily, the core thickness of the central part is increased as much as possible, and the strength is improved.

Further, in order to improve the smoothness of contact with the machined surface and reduce damage to the machined surface, the corner of the front end of the blade section is an outer convex arc-shaped surface.

Preferably, the taper of the blade section is 4.8 ° ± 15'; the length of the blade section is 47.7 mm. Such preferred parameters are more conducive to machining the surface of the wingtip-shaped site. The taper here refers to the angle between the oblique line in the axial section of the blade section and its central axis.

The beneficial effects of the utility model reside in that:

the utility model designs the cutting edge section into the conical section and obviously reduces the helical angle of the cutting edge, so that the cutting edge can better fit the wing tip shape part surface of the product to be processed, the contact area is increased, the tool consumption is obviously increased each time, and the processing efficiency is obviously improved; the helix angle of the cutting edge is reduced, so that the processing surface of the cutting edge is smoother; the transition surface between two adjacent cutting edges is designed to be an S-shaped surface, so that the chip grooves and the core thickness are increased, the chip removal efficiency and the stress intensity are improved, meanwhile, the front end corners of the cutting edge sections are designed to be convex arc surfaces, the damage to the machined surface is reduced, the cut surface is protected to a greater extent, the machined surface is smoother, and the machining quality is better.

Drawings

FIG. 1 is a front view of a conventional standard cutting tool;

FIG. 2 is a left side view of a conventional standard cutting tool

Fig. 3 is a schematic structural view of the high-efficiency forming tool for wingtip chamfering according to the present invention;

fig. 4 is a left side view structure diagram of the high-efficient forming tool for wingtip chamfering of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 3 and 4, a high-efficient shaping cutter for wingtip chamfer includes handle of a knife 8, handle of a knife 8 'S anterior segment is equipped with sword section 5, evenly be equipped with 3 cutting edges 6 in the circumference on sword section 5, the space between two adjacent cutting edges 6 is chip pocket 7, transition face between two adjacent cutting edges 6 is "S" profile, cutting edge section 5 is conical section and diameter by backward preceding diminishing gradually, the front end corner of sword section 5 is evagination arcwall face 4, the length of cutting edge section 5 is 47.7mm, the tapering of cutting edge section 5 is contained angle gamma in fig. 3 is 4.8 ° ± 15', the helix angle of cutting edge is contained angle β in fig. 3 is 15-30, more preferably 20.

Description of the drawings: the above-mentioned shank 8, blade 6 and chip flute 7 are the same as the shank 3, blade 1 and chip flute 2 of the background art in name but have different reference numerals because the names are common names but the specific structures are different, so for the convenience of distinction, different reference numerals are used.

As shown in fig. 3 and 4, when the tool is used, the rear end of the tool holder 8 is mounted on a rotating shaft of a machine tool, the blade section 5 is placed on the surface of the wing tip-shaped part of a product to be processed, the machine tool is started to rotate the tool at a high speed, the blade 6 performs cutting processing on the surface of the part, and chips are discharged through the chip pocket 7. Because the length of the cutting edge 6 in the whole cutting edge section 5 can be contacted with the surface of a part, the cutting consumption is obviously increased compared with that of the traditional cutter, the cutting length can reach 30mm, and the processing efficiency is obviously improved.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims

1. The utility model provides a high-efficient shaping cutter for wingtip chamfer, includes the handle of a knife, the anterior segment of handle of a knife is equipped with the cutting edge section, circumference evenly is equipped with a plurality of cutting edges on the cutting edge section, adjacent two space between the cutting edge is the chip groove, its characterized in that: the cutting edge section is a conical section, the diameter of the cutting edge section is gradually reduced from back to front, and the helix angle of the cutting edge is 15-30 degrees.

2. The high efficiency forming tool for wingtip chamfering according to claim 1, wherein: the number of the cutting edges is 3, and a transition surface between every two adjacent cutting edges is an S-shaped surface.

3. The high efficiency forming tool for wingtip chamfering according to claim 1, wherein: the front end corner of the blade section is an outward convex arc-shaped surface.

4. The high efficiency forming tool for wingtip chamfering according to claim 1, 2 or 3, wherein: the taper of the blade section is 4.8 degrees +/-15'; the length of the blade section is 47.7 mm.