CN216441710U - Drilling, expanding, reaming and reaming combined tool - Google Patents

Abstract

The utility model provides a drilling, expanding, reaming and spot facing combined cutter, relates to the technical field of machining, and aims to solve the problems that the process is complex, the cost of the cutter is high, the cutter needs to be frequently replaced, and the deviation is easy to occur while the cutter is frequently positioned and aligned; the drilling device consists of a hole opening structure, a hole expanding structure and a spot facing structure; one end of the open pore structure is fixedly connected with the hole expanding structure; the hole reaming structure is fixedly connected with one side of the hole reaming structure, the hole reaming structure and the hole reaming structure adopt blade zones, the blade zones A and the blade zones B have the functions of extruding and repairing the hole wall and stabilizing the hole size, the functions are the same as those of an independent reamer, firstly drilling and reaming are carried out, then reaming is carried out, and finally pit reaming is carried out at one time; not only the wall of the hole is smooth and clean, but also the size of the hole is stable; the coaxiality and the jumping degree of the hole and the nest are also ensured; the tool is particularly advantageous for workpieces requiring relatively high requirements for holes and pockets.

Description

Drilling, expanding, reaming and reaming combined tool

Technical Field

The utility model relates to the technical field of machining, in particular to a drilling, expanding, reaming and reaming compound cutter.

Background

Machining refers to a process of changing the physical dimensions or properties of a workpiece by a mechanical device. The machining method can be divided into cutting machining and pressure machining according to the difference of machining modes, in the process of machining a workpiece, the workpiece is often required to be perforated, in the prior art, most of procedures for machining holes with high precision are drilling, reaming, dimpling, four cutters and four procedures.

The inventor finds that when the existing drilling, expanding and reaming compound cutter is used, most of the existing drilling, expanding and reaming compound cutters are processed in a mode of integrating step drilling and reaming or drilling and reaming, one process is saved at most, and the consequences caused by multiple cutters and multiple processes are that the cost is high, the production efficiency is low, the positioning error is caused by frequent cutter changing, and the hole precision is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a drilling, reaming and reaming composite tool, which aims to solve the problems that the procedures proposed in the background technology are complex, the cost of the tool is high, the tool needs to be frequently replaced, and the deviation is easy to occur while the tool is frequently positioned and aligned.

The purpose and the efficacy of the drilling, reaming and reaming combined cutter are achieved by the following specific technical means:

a drilling, reaming and reaming compound cutter comprises a drilling device;

the drilling device consists of a hole opening structure, a hole expanding structure and a spot facing structure;

one end of the open pore structure is fixedly connected with the hole expanding structure;

the reaming structure, one side fixedly connected with reaming structure is counter bored structure.

Further, the open cell structure comprises:

the drill point is fixedly connected with cutting edges A at the periphery;

the cutting edge zones A are arranged in four groups, and the double-cutting-edge zone reamer has the effects of achieving the same effect as an independent reamer by adopting a double-cutting-edge zone design, extruding and repairing hole walls and stabilizing the size of the holes.

Further, the reaming structure comprises:

the periphery of the cutting edge is fixedly connected with a cutting edge B respectively, the cutting edge is provided with a back cleaning part and a conical cutting edge structure, and the functions of drilling and reaming can be firstly carried out through the cutting edge, then reaming is carried out, and finally dimple reaming is carried out at one time; not only the wall of the hole is smooth and clean, but also the size of the hole is stable; the coaxiality and the jumping degree of the hole and the nest are also ensured; the tool is particularly advantageous for workpieces requiring high requirements on holes and pits;

the back is cleaned, the back cleaning function is to reduce the friction with the hole wall and form a blade edge, and the blade edge plays the roles of supporting, extruding and guiding;

the cutting edges B are arranged in four groups.

Further, the spot facing structure includes:

the right-handed groove is a right-handed spiral groove and is used for facilitating backward discharge of scrap iron through the right-handed groove;

the inner part of the flat part is hollowed out, and one end of the flat part is fixedly connected with a connecting piece, so that the flat part can be used for mounting and dismounting a cutter;

the connecting piece is provided with a thread groove.

Compared with the prior structure, the utility model has the following advantages:

according to the utility model, the arrangement of the hole opening structure, the hole opening structure and the hole expanding structure both adopt the blade zones, the blade zones A and the blade zones B have the functions of extruding and closing the hole wall, stabilizing the hole size, and the functions are the same as those of a single reamer, namely firstly drilling and reaming, then expanding and finally reaming, and the hole opening is completed at one time; not only the wall of the hole is smooth and clean, but also the size of the hole is stable; the coaxiality and the jumping degree of the hole and the nest are also ensured; the tool is particularly advantageous for workpieces requiring relatively high requirements for holes and pockets.

The reaming structure can adjust the length of the cutter according to the requirements of a customer product, integrates the requirements of four procedures into one cutter, controls the precision by using numerical control machining, and completes drilling, reaming and dimple by one-time clamping. Not only reduces the cost of the cutter, but also obviously improves the production efficiency.

Drawings

FIG. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of a back cleaning structure according to the present invention;

fig. 4 is a schematic side view of the opening structure of the present invention.

In the figure:

1. a drilling device;

2. an open cell structure; 201. drilling a tip; 202. a margin A;

3. a hole expanding structure; 301. cutting edges; 302. clearing the back; 303. a margin B;

4. spot facing structure; 401. a right-handed slot; 402. flattening; 403. a connecting member.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. While the utility model will be described in conjunction with the exemplary embodiments, it will be understood that the description is not intended to limit the utility model to the exemplary embodiments. On the contrary, the utility model is intended to cover not only the exemplary embodiments, but also various alternative, modified, equivalent and other embodiments, which may be included within the spirit and scope of the utility model as defined by the appended claims.

Referring to fig. 1 to 4, a drilling, reaming and reaming composite cutter comprises a drilling device 1; the drilling device 1 consists of a hole opening structure 2, a hole reaming structure 3 and a hole reaming structure 4; one end of the open pore structure 2 is fixedly connected with the reaming structure 3; reaming structure 3, one side fixedly connected with reaming structure 4 of reaming structure 3.

As shown in fig. 2 and 4, the open pore structure 2 includes: the drill point 201, the periphery of the drill point 201 is fixedly connected with a cutting edge A202 respectively; the cutting edge A202 is arranged in four groups, the hole opening structure 2 and the hole expanding structure 3 both adopt cutting edges, the cutting edge A202 and the cutting edge B303 have the functions of extruding and repairing the hole wall and stabilizing the hole size, the functions are the same as those of a single reamer, firstly drilling and reaming are carried out, then reaming is carried out, and finally dimple reaming is carried out at one time; not only the wall of the hole is smooth and clean, but also the size of the hole is stable; the coaxiality and the jumping degree of the hole and the nest are also ensured; the tool is particularly advantageous for workpieces requiring relatively high requirements for holes and pockets.

As shown in fig. 2 and 3, the hole enlarging structure 3 includes: the periphery of the cutting edge 301 is fixedly connected with a cutting edge zone B303, and a back cleaning zone 302 is arranged on the cutting edge 301; the cutting edges B303 are arranged in four groups, the length of the cutter can be adjusted according to the requirements of customer products, the requirements of four procedures are integrated on one cutter, the precision is controlled by numerical control machining, and drilling, reaming and dimple drilling are completed by one-time clamping. Not only reduces the cost of the cutter, but also obviously improves the production efficiency.

As shown in fig. 2, wherein the spot-facing structure 4 includes: the right-handed groove 401 is arranged on the cutting edge 301, the drill tip 201 and the flat plate 402 respectively; flat 402, the inside fretwork setting of flat 402, and the one end fixedly connected with connecting piece 403 of flat 402.

In another embodiment, the connecting member 403 is provided with a thread groove, and the thread groove is 1/428UNF thread, so that the tool can be conveniently installed on a pneumatic drill, and the thread groove 403 can be made into 1: 20 taper, fixed on the air drill.

The working principle of the embodiment is as follows:

in the novel composite cutter, the cutting parameters are designed and optimized by adjusting the cutting allowance in the middle, the length of the cutter can be adjusted according to the requirements of a customer product, the requirements of four procedures are integrated on one cutter, the cutter comprises an opening structure 2 and a reaming structure 3, the opening structure 2 and the reaming structure are both provided with a cutting edge, the cutting edge A202 and the cutting edge B303 have the functions of extruding and closing the hole wall and stabilizing the hole size, the functions are the same as that of an independent reamer, firstly reaming is carried out, then reaming is carried out, and finally socket reaming is carried out at one time; not only the wall of the hole is smooth and clean, but also the size of the hole is stable; the coaxiality and the jumping degree of the hole and the nest are also ensured; the cutter has the advantages of controlling the precision by numerical control machining, and completing drilling, reaming and dimple by clamping at one time, thereby not only reducing the cost of the cutter, but also obviously improving the production efficiency.

The utility model is not described in detail, but is well known to those skilled in the art.

In summary, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments or equivalent substitutions for some technical features, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (4)

1. The utility model provides a bore and expand reaming countersink combination tool which characterized in that: comprising a drilling device (1);

the drilling device (1) consists of a hole opening structure (2), a hole expanding structure (3) and a hole expanding structure (4);

one end of the open pore structure (2) is fixedly connected with the hole expanding structure (3);

the hole expanding structure (3) is characterized in that one side of the hole expanding structure (3) is fixedly connected with a hole expanding structure (4).

2. The compound tool for drilling, reaming and reaming a bit as claimed in claim 1, wherein: the open-cell structure (2) comprises:

the drill point (201), the periphery of the drill point (201) is fixedly connected with a cutting edge A (202) respectively;

the cutting edge areas A (202) are arranged in four groups.

3. The compound tool for drilling, reaming and reaming a bit as claimed in claim 1, wherein: the reaming structure (3) comprises:

the periphery of the cutting edge (301) is fixedly connected with a cutting edge zone B (303) respectively, and a back cleaning zone (302) is arranged on the cutting edge (301);

the cutting edge zones B (303) are arranged in four groups.

4. The compound tool for drilling, reaming and reaming a bit as claimed in claim 1, wherein: the spot-facing structure (4) includes:

the right-handed groove (401), the right-handed groove (401) is set up on cutting edge (301), drill point (201) and flat (402) separately;

flat (402), the inside fretwork setting of flat (402), and the one end fixedly connected with connecting piece (403) of flat (402).

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