CN209773565U - PCD wire drawing milling cutter - Google Patents

Abstract

The utility model provides a PCD wire drawing milling cutter, including handle of a knife and tool bit, set up the PCD blade on the tool bit, the blade of PCD blade is the zigzag. The PCD wire-drawing milling cutter realizes the wire-drawing effect by scraping the sawteeth and the surface of the workpiece, prolongs the service life of a wire-drawing cutter, has small stress and deformation of the processed workpiece during high-speed cutting and machining, and is suitable for precision machining.

Description

PCD wire drawing milling cutter

Technical Field

The utility model belongs to metal wire drawing processing field, concretely relates to PCD wire drawing milling cutter.

Background

The wire drawing process is a metal processing process. In metal press working, a metal is forced through a die under an external force, the cross-sectional area of the metal is compressed, and a technical working method of obtaining a desired shape and size of the cross-sectional area is called a metal drawing process. Compared with other surface treatments, the wire drawing treatment can enable the metal surface to obtain non-specular metallic luster, and has very strong decorative effect, so the wire drawing treatment is accepted by the market and widely applied to various fields, such as: elevator door panels and escalator decorative panels in the building industry; faucets, hinges, handles, lock trims, etc. in the building hardware industry; kitchenware such as range hoods, stainless steel cookers, sinks and the like. In recent years, various 3C digital products have been developed, such as notebook computer panels, keyboard panels, mobile phone panels, LCD frames, battery cover plates, protective sliding covers for cameras, and digital camera lens sliding covers. However, the cutting edge of the existing wire drawing tool is in a linear edge shape, bright lines and a shade surface are easy to appear in the wire drawing effect, the wire drawing processing reject ratio is high, the service life of the tool is short, and the large-scale high-precision CNC machining application cannot be met. Meanwhile, the existing linear-edge-shaped wire drawing cutter needs to be ground by a grinding wheel, the qualification rate of the cutter is low, and the production cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of prior art to a PCD wire drawing milling cutter is provided.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is:

The PCD wire-drawing milling cutter comprises a cutter handle and a cutter head, wherein a PCD blade is arranged on the cutter head, the cutting edge of the PCD blade is in a sawtooth shape, namely, uniform sawtooth is arranged on the cutting edge of the PCD blade, and the PCD blade is convenient to scrape the surface of a workpiece to realize the wire-drawing effect.

Based on the above, the tool bit is the zigzag tool bit, the zigzag tool bit includes top surface, bottom surface and four sides, arbitrary two parallels set up respectively on the side PCD blade.

Based on the above, the side face is an arc-shaped face.

Based on the above, the axial rake angle of the PCD insert is 3 to 7 °.

The utility model discloses relative prior art has substantive characteristics and progress, specifically speaking, the utility model has the following advantages:

The utility model provides a PCD wire drawing milling cutter, including handle of a knife and tool bit, set up the PCD blade on the tool bit, the blade of PCD blade is the zigzag. Compare in the sharp blade of traditional emery wheel grinding, PCD wire drawing milling cutter realizes the wire drawing effect through the sawtooth of homogeneous and the scraping of workpiece surface, and the blade is difficult for taking place to collapse, effectively prolongs wire drawing cutter's life, and this PCD wire drawing milling cutter can process out high-grade wire drawing effect with CNC high-speed machine tool in addition, improves wire drawing product qualification rate, reduces process time by a wide margin, improves machining efficiency, realizes wire drawing product scale production, and it is little to be processed the little deflection of work piece atress in high-speed cutting man-hour simultaneously, is fit for precision finishing. Meanwhile, the cutting edge of the PCD blade can adopt a 3D laser processing technology, the breaking of the cutting edge is less than or equal to 0.001mm, the sawtooth shapes are uniform, and the qualification rate of the cutter and the stability of the wire drawing effect are effectively improved.

drawings

Fig. 1 is a schematic structural view of the music headrest of the present invention.

Fig. 2 is a top view of fig. 1.

In the figure: 1. a knife handle; 2. a cutter head; 3. a PCD blade; 4. a PCD blade.

Detailed Description

The technical solution of the present invention will be described in further detail through the following embodiments.

As shown in fig. 1 and 2, the PCD wire-drawing milling cutter comprises a cutter handle 1 and a cutter head 2, wherein a PCD blade 3 is arranged on the cutter head 2, and the cutting edge of the PCD blade 3 is zigzag. PCD wire drawing milling cutter realizes the wire drawing effect through the even sawtooth and the surperficial scraping of work piece on the blade, and the blade is difficult for collapsing, effectively prolongs wire drawing cutter's life, and PCD wire drawing milling cutter can process out high-grade wire drawing effect with the high-speed lathe of CNC in addition, improves wire drawing product qualification rate, reduces process time by a wide margin, improves machining efficiency, realizes wire drawing product scale production. Meanwhile, the processed workpiece is stressed by a small amount of deformation during high-speed cutting and processing, and is suitable for precision processing. Meanwhile, the cutting edge of the PCD blade can adopt a 3D laser processing technology, the defect of the cutting edge is not more than 0.001mm, and the qualification rate of the cutter is effectively improved. In this embodiment, the sawtooth specification of the cutting edge is preferably 0.1mm × 0.05 mm, and in other embodiments, the sawtooth specification of the cutting edge may be adjusted according to a required wire drawing effect.

Furthermore, the tool bit is Z-shaped so as to reduce the weight of the tool bit and improve the rotating speed, the Z-shaped tool bit comprises a top surface, a bottom surface and four side surfaces, the PCD blade 3 and the PCD blade 4 are respectively welded on any two parallel side surfaces, the service life of the tool is prolonged, and the cost is reduced.

Further in order to facilitate chip removal, the side surface is an arc-shaped surface.

Further, in order to reduce cutting resistance, improve the sharpness of the PCD wire-drawing milling cutter, effectively prevent the occurrence of vertical lines, improve the feeding of the cutter, and improve the machining efficiency, the PCD blade is provided with an axial rake angle, and in this embodiment, the axial rake angle is 5 °. In other embodiments the axial rake angle of the PCD insert may be set to 3-7 °.

Comparison of Performance

In the CNC wire drawing processing of the C-shaped frame of the notebook computer, the rotating speed of a traditional linear cutting edge milling cutter is 6000 r/min, the feeding is 400 mm/min, and the service life is 100; the PCD wire-drawing milling cutter provided by the embodiment has the rotating speed of 8000 r/min, the feeding speed of 800 mm/min and the service life of 500 pieces; compared with the traditional linear cutting edge, the rotating speed of the PCD wire-drawing milling cutter is increased by 33 percent, the feeding is increased by 100 percent, the processing efficiency is improved by 1 time, and the service life is 5 times of that of the PCD wire-drawing milling cutter; meanwhile, the outer surface of the wiredrawing workpiece processed by the PCD wiredrawing milling cutter has no bright line and shade and sun surface, the hand feeling is smooth, fine and beautiful, and the product grade is improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims (5)

1. The PCD wire drawing milling cutter comprises a cutter handle and a cutter head, and is characterized in that: the tool bit is provided with a PCD blade, and the cutting edge of the PCD blade is in a sawtooth shape.

2. the PCD wiredrawing milling cutter according to claim 1, wherein: the tool bit is Z-shaped, the Z-shaped tool bit comprises a top surface, a bottom surface and four side surfaces, and the PCD blades are respectively arranged on any two parallel side surfaces.

3. The PCD wiredrawing milling cutter according to claim 2, wherein: the PCD blade is welded to the cutter head.

4. A PCD wiredrawing milling cutter according to claim 2 or 3, characterised in that: the side surface is an arc surface.

5. The PCD wiredrawing milling cutter according to claim 4, wherein: the axial rake angle of the PCD blade is 3 to 7 degrees.