CN107538083A - A kind of mobile phone aluminium frame monocrystalline diamond PCD twolips combine rose reamer - Google Patents

Abstract

The invention provides a mobile phone aluminum frame single crystal diamond PCD double-edged combined chamfering knife, which is characterized in that it includes a handle and a knife head, and the end edge of the knife head is provided with a first groove, and the first groove A diamond blade is welded in the groove, and the diamond blade has a first rake face and a first relief face, and the first rake face has a first chamfering edge, and the first chamfering edge is aligned with the horizontal direction. At an angle of 45°, the peripheral edge of the cutter head is provided with a second groove, and a PCD blade is welded in the second groove, and the PCD blade has a second rake surface and a second flank surface, so There is a second chamfering edge on the second rake face, and the second chamfering edge forms an angle of 45° with the horizontal direction. The cutting tool of the invention is easy to manufacture, has a sharp cutting edge, has a smooth surface after chamfering, has no burrs, and can also improve processing efficiency.

Description

A mobile phone aluminum frame single crystal diamond PCD double-edged combined chamfering knife

technical field

The invention relates to the technical field of chamfering cutters for aluminum frames of mobile phones, in particular to a single crystal diamond PCD double-edged combined chamfering cutter for aluminum frames of mobile phones.

Background technique

In mechanical processing, the tool is an indispensable main part of machine tool processing. The quality of the tool affects its service life, and also affects the quality of mechanical processing and production efficiency. For example, the high-gloss parts of mobile phone parts are all high-precision chamfers. The Chinese patent authorization announcement date is 2016.11.16, the authorization announcement number is CN205684735U, and the application number is 201620657902.7. The patent name is a single crystal diamond PCD double-edged combination chamfer For a corner knife, the chamfering head is provided with a chamfering cutting surface, and the chamfering head is located outside the central axis of the knife handle and the outer edge of the knife handle, and there is a flat surface between the bottom of the knife handle and the chamfering head. Straight handle slope, the chamfered cutting surface is rectangular; the chamfered cutting surface is connected by a vertically arranged chamfering head inner side between the beginning of the chamfered cutting surface and the chamfered cutting surface, and the chamfered cutting surface is connected to the The outer surfaces of the corner heads are connected by a straight chamfering head slope. The chamfering cutting surface of this new type rotates around the central axis of the cutter body when in use. When processing the four corners of the upper surface of the mobile phone, the chamfering knife can directly chamfer one corner of the upper surface of the mobile phone at the same time. Half of the repeated processing time is saved. At the same time, part of the head and shank of the chamfering knife is cut off, which reduces the weight of the knife body and reduces the interference during driving. The above tools are processed in one piece. When performing high-precision chamfering, two knives are needed for chamfering. They are divided into rough chamfering knives and fine chamfering knives. Then replace a fine chamfering knife for chamfering, resulting in low processing efficiency and high tool cost.

Contents of the invention

The object of the present invention is to provide a mobile phone aluminum frame single crystal diamond PCD double-edged combined chamfering cutter with simple structure, high processing efficiency and low cutter cost.

In order to achieve the above object, the present invention provides the following technical solutions:

A mobile phone aluminum frame single crystal diamond PCD double-edged combined chamfering knife, including a handle and a knife head, the end edge of the knife head is provided with a first groove, and a diamond blade is welded in the first groove. The diamond blade has a first rake face and a first relief face, the first rake face has a first chamfering edge, and the first chamfering edge is at an angle of 45° to the horizontal direction. The peripheral edge of the head is provided with a second groove, and a PCD blade is welded in the second groove, and the PCD blade has a second rake surface and a second relief surface, and the second rake surface has a The second chamfering edge, the second chamfering edge forms an angle of 45° with the horizontal direction.

Further, the diameter of the knife handle is 0.6cm.

Further, the first relief surface forms an angle of 40° with the horizontal direction.

Further, the second relief surface forms an angle of 39° with the horizontal direction.

The beneficial effects of the present invention are:

The present invention is provided with a diamond blade and a PCD blade on the cutter head, wherein the diamond blade is arranged on the end edge of the cutter head, and the PCD blade is arranged on the peripheral edge of the cutter head. The frame is rough-machined. Because the PCD blade is used, the hardness of the PCD blade is high, and the second chamfering edge is very sharp. After the PCD blade is rough-machined, the diamond blade can be directly aligned without changing the tool. position, the aluminum frame of the mobile phone can be finished, which shows that the cutting tool of the present invention is easy to manufacture, has a sharp blade, smooth surface after chamfering, no burrs, and improves processing efficiency.

Description of drawings

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

Fig. 2 is a front view of the present invention.

detailed description

The present invention will be further described below in conjunction with accompanying drawing:

A mobile phone aluminum frame single crystal diamond PCD double-edged chamfering knife as described in Figures 1 to 2, including a handle 1 and a knife head 2, the end edge of the knife head 2 is provided with a first groove 3, A diamond blade 5 is welded in the first groove 3, the diamond blade 5 has a first rake face 7 and a first relief face 9, and the first rake face 7 has a first chamfering edge 11. The first chamfering edge 11 is at an angle of 45° to the horizontal direction, and the peripheral edge of the cutter head 2 is provided with a second groove 4, and a PCD blade 6 is welded in the second groove 4, and the PCD insert 6 has a second rake face 8 and a second relief face 10, the second rake face 10 has a second chamfering edge 12, and the second chamfering edge 12 is 45° to the horizontal direction horn.

In this embodiment, the diameter of the handle 1 is 0.5 cm.

In this embodiment, the first flank surface 9 forms an angle of 40° with the horizontal direction.

In this embodiment, the second flank 10 forms an angle of 39° with the horizontal direction.

The working principle of this embodiment is:

The present invention is provided with a diamond blade 5 and a PCD blade 6 on the cutter head, wherein the diamond blade 5 is arranged on the end edge of the cutter head 2, and the PCD blade 6 is arranged on the peripheral edge of the cutter head 2. Carry out rough machining to mobile phone aluminum frame by PCD blade 6, because what adopt is PCD blade 6, PCD blade 6 hardness is high, the second chamfering blade 12 that it grinds out is very sharp, after PCD blade 6 rough machining, need not at this moment By changing the tool, you can directly align the diamond blade 5, and you can finish the aluminum frame of the mobile phone, thus reflecting that the tool of the present invention is easy to manufacture, the blade is sharp, the surface is smooth after chamfering, and there is no burr, which also improves the processing. efficiency.

The above description does not limit the technical scope of the present invention in any way, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solutions of the present invention.

Claims (4)

1. a kind of mobile phone aluminium frame monocrystalline diamond PCD twolips combine rose reamer, it is characterised in that：It is described including handle of a knife and cutter head The end sword of cutter head offers the first groove, and diamond blade is welded with first groove, has first on the diamond blade Rake face and major first flank, there are the first chamfering blades on the major first face, first chamfering blades are in horizontal direction 45° angle, the Zhou Ren of the cutter head offer the second groove, are welded with PCD blades in second groove, on the PCD blades With knife face after the second rake face and second, there is the second chamfering blades, second chamfering blades and water on second rake face Square in 45° angle.

A kind of 2. mobile phone aluminium frame monocrystalline diamond PCD twolips combination rose reamer according to claim 1, it is characterised in that： A diameter of 0.6cm of the handle of a knife.

A kind of 3. mobile phone aluminium frame monocrystalline diamond PCD twolips combination rose reamer according to claim 1, it is characterised in that： The major first flank and horizontal direction are in 40 ° of angles.

A kind of 4. mobile phone aluminium frame monocrystalline diamond PCD twolips combination rose reamer according to claim 1, it is characterised in that： Knife face and horizontal direction are in 39 ° of angles after described second.