CN205020916U - PCD profile milling cutter - Google Patents

Abstract

The utility model discloses a PCD forming milling cutter, which comprises a cutter body, and a margin piece is welded on the cutter body. The front end of the sheet is provided with a reaming blade, and two cutting edge chamfers are provided on both sides of the front end of the reaming blade, that is, the first cutting edge chamfer and the second cutting edge chamfer, and the reaming blade is also provided with two chamfers. There are three V-shaped ring grooves with a sharp angle of 60°. The rear end of the margin sheet is also provided with a rough reaming blade and a fine reaming blade. The front end of the rough reaming blade is provided with a third cutting edge chamfer. A fourth cutting edge chamfer and a fifth cutting edge chamfer are respectively provided at the front and rear ends of the fine reaming blade, and a primary rear angle and a secondary rear angle are provided on the reaming blade. Through the above method, the utility model can have the function of expanding, milling, and chamfering, making the size of the product more stable during processing, reducing the number of tool changes, enabling one-time clamping and processing in place, and improving the processing efficiency of the product.

Description

PCD form milling cutter

technical field

The utility model relates to the field of milling cutters, in particular to a PCD forming milling cutter.

Background technique

PCD forming compound milling cutter is a special prop for processing forming holes on computer hard disks. In the past, solid carbide tools were used to process such workpieces. However, the traditional milling cutter cannot be in place at one time when processing the computer hard disk, and even needs to be changed for processing, which greatly reduces the processing efficiency and increases the processing cost.

Utility model content

The technical problem mainly solved by the utility model is to provide a PCD forming milling cutter, which can have the function of expanding milling and chamfering, improves the processing efficiency of the product, makes the size of the product more stable during processing, reduces the number of tool changes, and can be installed at one time. The clamp is processed in place, and the tool cost is relatively reduced.

In order to solve the above technical problems, a technical solution adopted by the utility model is to provide a PCD forming milling cutter, including a cutter body, and a margin piece is welded on the cutter body, and the margin piece is welded and attached to the On the annular end face of the front end of the cutter body, a reaming blade is provided at the front end of the margin piece, and two chamfering parts of the cutting edge are arranged on both sides of the front end of the reaming blade, that is, the first chamfering part of the cutting edge and the second chamfering part of the cutting edge. The chamfering part of the blade, the reaming blade is also provided with three V-shaped ring grooves with a sharp angle of 60°, and the rear end of the margin sheet is also provided with a rough reaming blade and a fine reaming blade, and the rough reaming blade The front end is provided with a third cutting edge chamfering portion, the front and rear ends of the fine reaming blade are respectively provided with a fourth cutting edge chamfering portion and a fifth cutting edge chamfering portion, and the reaming blade is provided with a primary rear angle and a secondary rear corner.

In a preferred embodiment of the present invention, the rough reaming blade is arranged on the end surface of the cutter body at the rear end of the reaming blade, and the fine reaming blade is arranged on the end surface of the cutter body at the rear end of the rough reaming blade.

In a preferred embodiment of the present utility model, the chamfer of the chamfer of the first cutting edge is 25°, and the chamfer of the chamfer of the second cutting edge is 30°.

In a preferred embodiment of the present invention, the chamfer of the third cutting edge at the front end of the rough rake blade is 45°.

In a preferred embodiment of the present invention, the chamfer of the fourth cutting edge chamfer at the front end of the fine reaming blade is 15°, and the chamfer of the fifth cutting edge chamfer at the rear end of the fine reaming blade is 30°.

In a preferred embodiment of the present invention, the cross-section diameter of the chamfering front end of the reaming blade is Φ10.5mm, the diameter of the cross-section between the ring grooves of the reaming blade is Φ9mm, and the chamfering of the rough reaming blade The cross-sectional diameter of the end face is Φ10.713mm, the cross-sectional diameter of the rear end face of the chamfered front end of the fine twisting blade is Φ10.768mm, and the cross-sectional diameter of the rear end chamfered end of the fine twisting blade is Φ12mm.

In a preferred embodiment of the present utility model, the primary relief angle is 6°, and the secondary relief angle is 11°.

In a preferred embodiment of the utility model, the land piece is made of polycrystalline diamond material.

The beneficial effects of the utility model are: the utility model can have the function of expanding milling and chamfering, improving the processing efficiency of the product, making the size of the product more stable during processing, reducing the number of tool changes, and processing once in place, and the cost of the tool is relatively low. Reduced, Φ10.5 edge is used for hole reaming to control the machining allowance of the hole. Three 60° V-shaped ring grooves are milled on the reamed hole wall to process three 60° annular grooves. At the same time A 25° hole chamfer is milled at the bottom hole, and Φ10.713 and Φ10.768 are respectively rough twisted and fine twisted in the through hole to ensure the dimensional accuracy of the hole, and the upper hole is also chamfered Corner processing.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work, wherein:

Fig. 1 is the structural representation of a preferred embodiment of the utility model PCD forming milling cutter;

Fig. 2 is a schematic structural view of a preferred embodiment of the shown reaming blade end face;

The markings of the parts in the accompanying drawings are as follows: 1. Tool body; 2. Margin piece; 3. Reaming blade; 4. Cutting edge chamfer; 401, first cutting edge chamfer; 402, second cutting edge Chamfering part; 403, chamfering part of the third cutting edge; 404, chamfering part of the fourth cutting edge; 405, chamfering part of the fifth cutting edge; Blade; a, primary relief angle; b, secondary relief angle.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1 and Fig. 2, the utility model embodiment comprises:

A PCD forming milling cutter, comprising a cutter body 1, a margin piece 2 is also welded on the cutter body 1, and the margin piece 2 is welded and attached to the ring end surface of the front end of the cutter body 1, and the margin piece The front end of the sheet 2 is provided with a reaming blade 3, and two cutting edge chamfers 4 are provided on both sides of the front end of the reaming blade 3, that is, a first cutting edge chamfer 401 and a second cutting edge chamfer 402. The reaming blade 3 is also provided with three V-shaped ring grooves 5 at a sharp angle of 60 °, and the rear end of the margin sheet 2 is also provided with a rough reaming blade 6 and a fine reaming blade 7, and the rough reaming blade 6 The front end is provided with a third cutting edge chamfering portion 403, the front and rear ends of the fine twisting blade 7 are respectively provided with a fourth cutting edge chamfering portion 404 and a fifth cutting edge chamfering portion 405, and the reaming blade 3 is provided with Primary relief angle a and secondary relief angle b.

In addition, the rough twisting blade 6 is arranged on the end surface of the cutter body at the rear end of the reaming blade 3 , and the fine twisting blade 7 is arranged on the end surface of the cutter body at the rear end of the rough twisting blade 6 .

In addition, the chamfer of the first cutting edge chamfer portion 401 is 25°, and the chamfer of the second cutting edge chamfer portion 402 is 30°.

In addition, the chamfer of the third cutting edge chamfer 403 at the front end of the rough rake blade 6 is 45°.

In addition, the fourth cutting edge chamfer 404 at the front end of the fine reaming blade 7 is chamfered at 15°, and the fifth cutting edge chamfer 405 at the rear end of the fine reaming blade 7 is chamfered at 30°.

In addition, the cross-section diameter of the chamfered front end of the reaming blade 3 is Φ10.5 mm, the diameter of the cross-section between the ring groove teeth 5 of the reaming blade 3 is Φ9 mm, and the chamfering rear end surface diameter of the rough reaming blade 6 is Φ10 mm. .713mm, the diameter of the section diameter of the rear end surface of the chamfered front end of the fine twisting blade 7 is Φ10.768mm, and the diameter of the section diameter of the rear end surface of the chamfered rear end of the fine twisting blade 7 is Φ12mm.

In addition, the primary relief angle a is 6°, and the secondary relief angle b is 11°.

In addition, the land piece 2 is made of polycrystalline diamond material.

The design principle of the utility model is to weld the edge piece 2 on the tool body 1, and the edge piece 2 is welded and attached to the front end annular end surface of the tool body 1. The edge piece 2 is made of polycrystalline diamond material, and the edge piece 2 The front end is provided with a reaming blade 3, and two cutting edge chamfers 4 are provided on both sides of the front end of the reaming blade 3, that is, the first cutting edge chamfering portion 401 and the second cutting edge chamfering portion 402, and the first cutting edge chamfering portion 402. The chamfering of the corner portion 401 is 25°, the chamfering of the second cutting edge chamfering portion 402 is 30°, and the reaming blade 3 is also provided with three V-shaped ring grooves 5 with sharp angles of 60°, and the margin sheet 2. The rear end is also provided with a rough reaming blade 6 and a fine reaming blade 7. The rough reaming blade 6 is arranged on the end face of the cutter body at the rear end of the reaming blade 3, and the fine reaming blade 7 is arranged on the end face of the cutter body at the rear end of the rough reaming blade 6. The front end of the rough reaming blade 6 is provided with a third cutting edge chamfer 403, the chamfer of the third cutting edge chamfer 403 at the front end of the rough reaming blade 6 is 45°, and the front and rear ends of the fine reaming blade 7 are respectively provided with a fourth cutting edge chamfer. Angle portion 404 and the fifth cutting edge chamfering portion 405, the chamfering of the fourth cutting edge chamfering portion 404 at the front end of the fine twisting blade 7 is 15°, and the chamfering of the fifth cutting edge chamfering portion 405 at the rear end of the fine twisting blade 7 is 30°, the reaming blade 3 is provided with a primary relief angle a and a secondary relief angle b, the primary relief angle a is 6°, the secondary relief angle b is 11°, the cross-sectional diameter of the chamfered front end of the reaming blade 3 is Φ10.5mm , the section diameter of the ring groove tooth opening 5 of the reaming blade 3 is Φ9mm, the diameter of the rear end surface section after the chamfering of the coarse reaming blade 6 is Φ10.713mm, and the diameter of the rear end surface section diameter of the chamfering of the front end of the fine reaming blade 7 is Φ10.768mm. The cross section diameter of the rear end face of the chamfering of the blade 7 is Φ12mm, and the reaming blade 3 of Φ10.5mm is used for reaming processing to control the machining allowance of the hole, and the three 60° V-shaped ring grooves Three 60° annular grooves are milled on the hole wall, and a 25° hole chamfer is milled on the bottom hole at the same time. The rough reaming blade 6 of Φ10.713mm and the fine reaming blade 7 of Φ10.768mm are respectively To the through hole for rough twisting and fine twisting, to ensure the dimensional accuracy of the hole, and at the same time chamfering the upper hole, so that the tool has the function of expanding milling and chamfering, improving the processing efficiency of the product, and making the product in the The size is more stable during processing, the number of tool changes is reduced, the processing is in place at one time, and the tool cost is relatively reduced.

The above descriptions are only examples of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the utility model description, or directly or indirectly used in other related technologies fields, are all included in the scope of patent protection of the utility model in the same way.

Claims (8)

1. a PCD profile milling cutter, comprise cutter body, it is characterized in that, described cutter body is also welded with land sheet, described land sheet welding is attached on the annular end face of described cutter body front end, described land sheet front end offers reaming blade, described reaming knife-edge leading end both sides are provided with two cutting edge chamfered section, i.e. the first cutting edge chamfered section and the second cutting edge chamfered section, described reaming blade is also provided with three V-type annular groove ages of a draught animal in 60 ° of wedge angles, described land sheet rear end also offers thick reamer sword and finishing reamer sword, described thick strand knife-edge leading end is provided with the 3rd cutting edge chamfered section, described finishing reamer sword front and back end is respectively equipped with the 4th cutting edge chamfered section and the 5th cutting edge chamfered section, described reaming blade is provided with primary clearance and time relief angle.

2. PCD profile milling cutter according to claim 1, is characterized in that, described thick reamer sword is located on the cutter body end face of described reaming blade rear end, and described finishing reamer sword is located on the cutter body end face of described thick reamer sword rear end.

3. PCD profile milling cutter according to claim 1, is characterized in that, the chamfering of described first cutting edge chamfered section is 25 °, and the chamfering of described second cutting edge chamfered section is 30 °.

4. PCD profile milling cutter according to claim 1, is characterized in that, the described 3rd cutting edge chamfered section chamfering of described thick strand knife-edge leading end is 45 °.

5. PCD profile milling cutter according to claim 1, is characterized in that, the 4th cutting edge chamfered section chamfering of described finishing reamer sword front end is 15 °, and the described 5th cutting edge chamfered section chamfering of described finishing reamer sword rear end is 30 °.

6. PCD profile milling cutter according to claim 1, it is characterized in that, described reaming blade chamfering front end face diameter of section is Φ 10.5mm, between the annular groove age of a draught animal of described reaming blade, diameter of section is Φ 9mm, described thick reamer sword chamfering rear end face diameter of section is Φ 10.713mm, the rear end face diameter of section of described finishing reamer sword Leading end chamfer is Φ 10.768mm, and after described finishing reamer sword end, the rear end face diameter of section of chamfer is Φ 12mm.

7. PCD profile milling cutter according to claim 1, is characterized in that, described primary clearance is 6 °, and described time relief angle is 11 °.

8. PCD profile milling cutter according to claim 1, is characterized in that, described land sheet is that polycrystalline diamond material is made.