CN207223112U - A mobile phone aluminum frame single crystal diamond PCD double-edged combined chamfering knife - Google Patents

Abstract

The present invention provides a single crystal diamond PCD double-edged combined chamfering tool for an aluminum frame of a mobile phone, characterized in that it comprises a handle and a cutter head, the end edge of the cutter head is provided with a first groove, a diamond blade is welded in the first groove, the diamond blade has a first rake face and a first flank face, the first rake face has a first chamfering edge, the first chamfering edge is at an angle of 45° to the horizontal direction, the peripheral edge of the cutter head is provided with a second groove, a PCD blade is welded in the second groove, the PCD blade has a second rake face and a second flank face, the second rake face has a second chamfering edge, the second chamfering edge is at an angle of 45° to the horizontal direction. The present invention is easy to manufacture, has a sharp blade, a smooth surface after chamfering, and is burr-free, 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. Blade combination chamfering knife, the chamfering head is provided with a chamfering cutting surface, the chamfering head is located outside the central axis of the handle and the outer edge of the handle, the bottom of the handle and the chamfering head It is a straight knife handle bevel, and the chamfering cutting surface is rectangular; the beginning of the chamfering cutting surface is connected with the beveling surface of the knife handle by the inner side of the vertically arranged chamfering head, and the right side of the chamfering cutting surface The edge and the outer surface of the chamfering head 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.

new content

The purpose of the new model is to provide a mobile phone aluminum frame single crystal diamond PCD double-edged combined chamfering knife with simple structure, high processing efficiency and low tool 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:

This new type 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 reflects that the new type of tool is easy to manufacture, the blade is sharp, the surface is smooth after chamfering, and there is no burr, and the processing efficiency is also improved.

Description of drawings

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

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

Detailed ways

Below in conjunction with accompanying drawing, the present invention is further described:

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 model 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 Replace the tool, you can directly align the diamond blade 5, and you can finish the aluminum frame of the mobile phone, which shows that the new type of tool 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 mobile phone aluminum frame single crystal diamond PCD double-edged chamfering knife is characterized in that: it includes a handle and a cutter head, and the end edge of the cutter head is provided with a first groove, and the first groove A diamond blade is welded, 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 45 to the horizontal direction. ° angle, 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 relief surface, and the first There are second chamfering edges on the two rake faces, and the second chamfering edges form an angle of 45° with the horizontal direction. 2. The aluminum frame single crystal diamond PCD double-edged chamfering knife for a mobile phone according to claim 1, wherein the diameter of the knife handle is 0.6 cm. 3. A mobile phone aluminum frame single crystal diamond PCD double-edged chamfering knife according to claim 1, characterized in that: the first flank surface forms an angle of 40° with the horizontal direction. 4 . The aluminum frame single crystal diamond PCD double-edged chamfering knife for a mobile phone according to claim 1 , wherein the second flank is at an angle of 39° to the horizontal direction.