CN205020956U - Pcd shaping reamer - Google Patents

Abstract

The utility model discloses a PCD forming reamer, which comprises a cutter body, a handle is arranged at the rear end of the cutter body, a cutter body guide strip is welded at the front end of the cutter body, and three groups of cutting guide strips are arranged on the cutter body guide strip. Edge, that is, the first cutting edge, the second cutting edge and the third cutting edge, the first cutting edge, the second cutting edge and the third cutting edge are provided with a chamfer, the first cutting edge The front end of a cutting edge forms an included angle of 75° with the axial surface of the cutter body, the chamfer of the first cutting edge is arranged at the middle segment position, the second cutting edge and the third cutting edge The chamfer is set at the front end. Through the above method, the utility model can be used for the processing of the formed stepped hole, which can ensure the dimensional accuracy of the hole, and more importantly, ensure the coaxiality of the hole. Three groups of cutting edges with different outer diameters are aimed at three different The step of the size and the chamfering of the three hole walls are processed and designed, and the axial feed is carried out, and finally the product is finished by successive reaming.

Description

PCD forming reamer

technical field

The utility model relates to the field of reamers, in particular to a PCD forming reamer.

Background technique

The reamer is used to ream the drilled hole on the workpiece, mainly to improve the machining accuracy of the hole and reduce its surface roughness. It is a tool used for finishing and semi-finishing the hole, and the machining allowance is general. very small. The traditional reamer will not be processed with carbide guide strips, which reduces the stability of reaming processing and the accuracy of product coaxiality processing, and the traditional reamer cannot simultaneously process three different parts of a hole. The steps of the size and the chamfering of the three hole walls need to be processed step by step, which reduces the production efficiency.

Utility model content

The technical problem mainly solved by the utility model is to provide a PCD forming reamer, which can be used for forming stepped holes, and can ensure the dimensional accuracy of the holes, and more importantly, ensure the coaxiality of the holes.

In order to solve the above technical problems, a technical solution adopted by the utility model is to provide a PCD forming reamer, including a cutter body, the rear end of the cutter body is provided with a handle, and the front end of the cutter body is welded with a cutter body guide strip , the cutter body guide bar is provided with three sets of cutting edges, namely the first cutting edge, the second cutting edge and the third cutting edge, the first cutting edge, the second cutting edge and the third cutting edge Each is provided with a chamfer, the front end of the first cutting edge forms an included angle of 75° with the axial surface of the cutter body, the chamfer of the first cutting edge is set at the middle section, and the first cutting edge The chamfers on the second cutting edge and the third cutting edge are located at the front end.

In a preferred embodiment of the present invention, the first cutting edge is set at the front end of the cutter body guide bar, the second cutting edge is set at the rear end of the first cutting edge, and the third cutting edge The edge is arranged at the rear end of the second cutting edge.

In a preferred embodiment of the present invention, the first cutting edge is provided with a chamfer with a chamfer of 30°, and the second cutting edge is provided with a chamfer with a chamfer of 15°, so A chamfer with a chamfer of 30° is provided on the third cutting edge.

In a preferred embodiment of the present invention, the diameter of the cross-section of the cutter body at the chamfered rear end face of the first cutting edge is Φ30.18 mm, and the cross-sectional diameter of the cutter body at the chamfered rear end face of the second cutting edge is Φ33.355 mm , the cross-sectional diameter of the cutter body at the end face of the chamfered third cutting edge is Φ38mm.

In a preferred embodiment of the utility model, the section diameter of the knife handle is 25 mm.

In a preferred embodiment of the present invention, the first cutting edge, the second cutting edge and the third cutting edge are all made of PCD material.

In a preferred embodiment of the utility model, the guide strip of the cutter body is made of hard alloy material.

The beneficial effects of the utility model are: the utility model can be used for the processing of the formed stepped hole, which can ensure the dimensional accuracy of the hole, and more importantly, ensure the coaxiality of the hole. Three groups of cutting edges with different outer diameters are aimed at a hole Three steps of different sizes and three hole wall chamfers are processed and designed, and the axial feed is carried out, and finally the product is finished in sequence.

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 reamer;

The marks of each part in the accompanying drawings are as follows: 1, cutter body; 2, handle of a knife; 3, cutter body guide bar; 4, cutting edge; 401, first cutting edge; blade.

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, the utility model embodiment comprises:

A PCD forming reamer, comprising a cutter body 1, the rear end of the cutter body 1 is provided with a handle 2, the front end of the cutter body 1 is welded with a cutter body guide strip 3, and the cutter body guide strip 3 is provided with three groups Cutting edge 4, that is, the first cutting edge 401, the second cutting edge 402 and the third cutting edge 403, the first cutting edge 401, the second cutting edge 402 and the third cutting edge 403 are all provided with A chamfer, the front end of the first cutting edge 401 forms an included angle of 75° with the axial surface of the cutter body 1, the chamfer of the first cutting edge 401 is located at the middle section, and the second The chamfers on the cutting edge 402 and the third cutting edge 403 are located at the front end.

In addition, the first cutting edge 401 is arranged at the front end of the guide bar of the cutter body 1, the second cutting edge 402 is arranged at the rear end of the first cutting edge 401, and the third cutting edge 403 is arranged at the The rear end of the second cutting edge 402 is described.

In addition, the first cutting edge 401 is provided with a chamfer with a chamfer of 30°, the second cutting edge 402 is provided with a chamfer with a chamfer of 15°, and the third cutting edge 403 is A chamfered portion with a chamfer of 30° is provided.

In addition, the cross-sectional diameter of the cutter body at the chamfered rear end face of the first cutting edge 401 is Φ30.18 mm, the cutter body cross-sectional diameter at the chamfered rear end face of the second cutting edge 402 is Φ33.355 mm, and the third cutting edge The cross-section diameter of the cutter body at the rear end face of the 403 chamfer is Φ38mm.

In addition, the section diameter of the knife handle 2 is 25mm.

In addition, the first cutting edge 401 , the second cutting edge 402 and the third cutting edge 403 are all made of PCD material.

In addition, the cutter body guide strip 3 is made of hard alloy material.

The design principle of the utility model is that a knife handle 2 is set at the rear end of the knife body 1, and the front end of the knife body 1 is welded with a knife body guide strip 3, the knife body guide strip 3 is made of hard alloy material, and the knife body guide strip 3 is provided with three A group of cutting edges 4, that is, the first cutting edge 401, the second cutting edge 402 and the third cutting edge 403, the first cutting edge 401 is located at the front end of the guide bar of the cutter body 1, and the second cutting edge 402 is located at the first cutting edge 401 rear end, the third cutting edge 403 is located at the second cutting edge 402 rear end, the first cutting edge 401, the second cutting edge 402 and the third cutting edge 403 are all made of PCD material, the first cutting edge 401, the second cutting edge Both the second cutting edge 402 and the third cutting edge 403 are provided with a chamfer, the first cutting edge 401 is provided with a chamfer of 30°, and the second cutting edge 402 is provided with a chamfer of 15° The chamfering part, the third cutting edge 403 is provided with a chamfering part with a chamfering angle of 30°, the front end of the first cutting edge 401 forms an included angle of 75° with the axial surface of the cutter body 1, the first cutting edge 401 The chamfering is set at the middle section, and the chamfering on the second cutting edge 402 and the third cutting edge 403 is set at the front end. The cross-sectional diameter of the cutter body at the end face of the chamfered edge 402 is Φ33.355mm, the cross-sectional diameter of the cutter body at the rear end face of the third cutting edge 403 chamfers is Φ38mm, and the cross-sectional diameter of the handle 2 is 25mm. Three groups of cutting edges with different outer diameters The first cutting edge 401, the second cutting edge 402, and the third cutting edge 403 are designed for processing three steps of different sizes and three hole wall chamfers in a hole, and are fed axially to finally achieve the sequential stranding of the product. After the cutting process is completed, the dimensional accuracy of the hole is guaranteed, and more importantly, the coaxiality of the hole is ensured.

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 (7)

1. a PCD forming reamer, comprise cutter hub, it is characterized in that, described cutter hub rear end is provided with handle of a knife, described cutter hub front end is welded with cutter hub gib block, described cutter hub gib block is provided with three groups of cutting edges, i.e. the first cutting edge, second cutting edge and the 3rd cutting edge, described first cutting edge, described second cutting edge and described 3rd cutting edge are equipped with a chamfered section, described first cutting edge front end and described cutter hub axial vane surface form the angle of 75 °, the chamfering of described first cutting edge is located at interlude position, chamfering on described second cutting edge and described 3rd cutting edge is located at front position.

2. PCD forming reamer according to claim 1, is characterized in that, described first cutting edge is located at described cutter hub gib block foremost, and described first cutting edge rear end is located at by described second cutting edge, and described second cutting edge rear end is located at by described 3rd cutting edge.

3. PCD forming reamer according to claim 1, it is characterized in that, described first cutting edge is provided with the chamfered section that chamfering is 30 °, and described second cutting edge is provided with the chamfered section that chamfering is 15 °, and described 3rd cutting edge is provided with the chamfered section that chamfering is 30 °.

4. PCD forming reamer according to claim 1, it is characterized in that, described first cutting edge chamfering rear end face place cutter hub diameter of section is Φ 30.18mm, described second cutting edge chamfering rear end face place cutter hub diameter of section is Φ 33.355mm, and described 3rd cutting edge chamfering rear end face place cutter hub diameter of section is Φ 38mm.

5. PCD forming reamer according to claim 1, is characterized in that, described handle of a knife diameter of section is 25mm.

6. PCD forming reamer according to claim 1, is characterized in that, described first cutting edge, described second cutting edge and described 3rd cutting edge are made by PCD material.

7. PCD forming reamer according to claim 1, is characterized in that, described cutter hub gib block is made up of Hardmetal materials.