CN106694963B - Compound tool is bored in a kind of ladder boring and its processing technology is bored in boring - Google Patents

Compound tool is bored in a kind of ladder boring and its processing technology is bored in boring Download PDF

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Publication number
CN106694963B
CN106694963B CN201710055104.6A CN201710055104A CN106694963B CN 106694963 B CN106694963 B CN 106694963B CN 201710055104 A CN201710055104 A CN 201710055104A CN 106694963 B CN106694963 B CN 106694963B
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China
Prior art keywords
hole
boring
cutter
boring cutter
stepped hole
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CN201710055104.6A
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CN106694963A (en
Inventor
李石炎
柳成涛
韩胡伟
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Weihai Bert Lisa Ke Di Automobile Safety System Co Ltd
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Weihai Bert Lisa Ke Di Automobile Safety System Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/08Drills combined with tool parts or tools for performing additional working
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B27/00Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B35/00Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods

Abstract

The present invention relates to a kind of ladder borings to bore compound tool, including the cutter hub being made of drill bit and knife bar, which is characterized in that the drill bit is installed on the cutter head bottom of the cutter hub, and the drill bit is corresponding and is used to process the aperture of the workpiece to be processed;The knife bar includes the compound cutter hub of the compound cutter hub in front end and rear end, and workpiece to be processed first step hole, first boring cutter in second step hole, the second boring cutter described in boring are sequentially installed on the compound cutter hub in front end;The compound cutter hub in rear end is combined by third boring cutter, the 4th boring cutter and the 5th boring cutter of third stepped hole, the 4th stepped hole and the 5th stepped hole for processing the workpiece to be processed.6 cutters are compounded on a cutter by compound tool of the invention, save the time of tool changing and machine tool movement, and can improve the position precision in hole, to save the working time and reduce the investment of equipment, can greatly improve production efficiency and reduce cost.

Description

Compound tool is bored in a kind of ladder boring and its processing technology is bored in boring
Technical field
The present invention relates to NC cutting tool technical field of structures, specifically, relate to a kind of the compound of stepped bore+drilling Cutter, and a kind of processing technology implemented based on the cutter.
Background technique
Currently, replacement cutter is typically necessary several seconds time for numerically-controlled machine tool, and when processing, cutter also needs The mobile time.Process it is some have multilayer steps hole and stepped hole where plane need to drill, each stepped hole needs one Borer, the aperture at plane also wants independent one cutter, if hole needs chamfering, also needs to increase by one chamfering Knife, for removing the overlap in hole.
Therefore, in normal numerical control processing operation, we generally require that cutter one could be completed by two or three The processing of a stepped hole operates comparatively laborious, and time-consuming and laborious, processing efficiency is low.
Summary of the invention
Present invention seek to address that had a single function existing for existing NC cutting tool and lathe need repeatedly replacement cutter bring The technological deficiencies such as working efficiency is low, and then provide and a kind of have that structure is simple and direct, multiple functional, lathe only needs to change a knife Compound tool is bored in the ladder boring for integrating the functions such as reaming, boring, chamfering of tool.Another object of the present invention is to provide A kind of processing technology for boring compound tool based on above-mentioned boring.
To solve the above problems, the technical scheme adopted by the invention is that:
Compound tool is bored in a kind of ladder boring, for carrying out drilling and bore hole to workpiece to be processed S, including by drill bit 10 and knife The cutter hub that bar 11 is constituted, is characterized in that, the drill bit 10 is installed on the cutter head bottom of the cutter hub, and the drill bit 10 is right It should and be used to process the aperture F of the workpiece to be processed;The knife bar 11 includes the compound cutter hub of the compound cutter hub in front end and rear end, institute State the first boring cutter that workpiece to be processed first step hole A, second step hole B described in boring are sequentially installed on the compound cutter hub in front end 1, the second boring cutter 2;The compound cutter hub in rear end is by third stepped hole C, the 4th step for processing the workpiece to be processed S The third boring cutter 3 of hole D and the 5th stepped hole E, the 4th boring cutter 4 and the 5th boring cutter 5 are combined;The first step hole A, second Stepped hole B, third stepped hole C, the 4th stepped hole D and the 5th stepped hole E are the stepped hole of coaxial different diameters, first boring cutter 1, the second boring cutter 2, third boring cutter 3, the 4th boring cutter 4 and the stepped structure of the 5th boring cutter 5 are laid on the knife bar 11.
The first step hole A of the workpiece to be processed S is minimum aperture, is processed by the first boring cutter 1 of the knife bar front end; It is equipped with second step hole B in the reversed side of the first step hole A, is added by second boring cutter 2 adjacent with first boring cutter 1 Work;
It is sequentially equipped with from inside to outside respectively by third in the other side of the first step hole A according to ascending aperture Third stepped hole C, the 4th stepped hole D and the 5th stepped hole E of the corresponding processing of boring cutter 3, the 4th boring cutter 4 and the 5th boring cutter 5;
In order to process the second step hole B of the workpiece to be processed S, it is reserved on the knife bar 11 and allows knife space K3, institute It states and allows knife space K3 between second boring cutter 2 and third boring cutter 3;
The 5th stepped hole E is chamfered bore;
The material that the cutter hub uses is Cr12MoV;
The drill bit is using hard alloy non-standard component;
First boring cutter 1, the second boring cutter 2, third boring cutter 3, the 4th boring cutter 4 and the 5th boring cutter 5 are sequentially welded on described On knife bar 11;
The drill bit 10, which is bolted, to be installed in the mounting hole that the cutter head bottom opens up;
In order to reduce cutting force, so that the hole processed is more stable, first boring cutter 1, the second boring cutter 2, third The blade of boring cutter 3, the 4th boring cutter 4 and the 5th boring cutter 5 is PCD material, and entire cutter hub needs to be G=6.3mm/s, n=5000RPM's Dynamic balancing;
It is described that knife space K3 is allowed to should be greater than second step hole B bottom hole extremely for the ease of second step hole described in tool sharpening The distance between the upper surface workpiece to be processed S L2;The axial distance K2 of second boring cutter 2 should be greater than the depth of second step hole B Spend L1;
In order to guarantee the dimensional accuracy of the smallest first step hole A, the diameter of axle of second boring cutter 2 is 3. less than the first boring cutter 2 diameter of axle is 2.;
In order to meet the depth of processing step, the depth of the axial distance K5 and the 4th stepped hole D of the 4th boring cutter 4 It is identical to spend L4, distance is L3 between the bottom hole of the upper surface the workpiece to be processed S to the third stepped hole C, described to be processed The upper surface workpiece S to the distance between 4 bottom hole of the 4th stepped hole is L4, and the axial distance K4 of the third boring cutter 3 is equal to L3-L4;
In order to meet the diametric requirements of stepped hole, 2. the diameter of axle of first boring cutter 2 is equal to the straight of first step hole A 4. the diameter of axle of diameter, the third boring cutter is equal to the diameter of third stepped hole C;5. the diameter of axle of 4th boring cutter 4 is equal to the 4th The diameter of rank hole D.
Processing technology is bored in the boring that compound tool is bored in a kind of above-mentioned ladder boring, is characterized in that, including work in detail below Skill step:
Step 1: machining small F
The drill bit 10 that compound tool end is bored in ladder boring is directed to the predetermined position of workpiece to be processed S, machining small F adds Work is to when making a reservation for small hole depth L5, withdrawing;
Step 2: processing first step hole
The center that compound tool is moved to workpiece to be processed S stepped hole is bored in ladder boring, processes first step hole A;
Step 3: processing second step hole
Compound tool is bored in ladder boring and moves to second step hole bottom hole the distance between to the workpiece to be processed upper surface The position L2, then the second boring cutter bias is moved to and first step hole A inner wall position;Composite cutter starts with the axis of stepped hole as circle The heart, (B- is 2.)/2 sizes are radius, do circular interpolation, process second step hole B;
Step 3: processing remaining stepped hole
Ladder boring bores compound tool by backtracking to the center of circle of stepped hole, successively processes third stepped hole C, the 4th step Hole D and the 5th stepped hole E;Last withdrawing, completion of processing!
Compound tool is bored in a kind of ladder boring of the invention, solves and has a single function existing for existing NC cutting tool, Yi Jiji Bed needs repeatedly replacement cutter bring working efficiency low etc., and technical problems, compound tool of the invention are compound by 6 cutters On a cutter, the time of tool changing and machine tool movement is saved, and the position precision in hole can be improved, thus when saving work Between and reduce equipment investment, can greatly improve production efficiency and reduce cost.
Detailed description of the invention
Fig. 1: stepped bore of the invention+drilling compound tool structural schematic diagram;
Fig. 2: stepped bore of the invention+drilling compound tool scale diagrams;
Fig. 3: the schematic diagram for the stepped hole for needing to process;
Fig. 4: stepped bore+drilling compound tool bore state structural schematic diagram;
Fig. 5: stepped bore+drilling compound tool boring stepped hole A condition structural schematic diagram;
Fig. 6: stepped bore+drilling compound tool boring stepped hole B state structural schematic diagram;
Fig. 7: stepped bore+drilling compound tool boring stepped hole C, D, E-state structural schematic diagram;
1, first boring cutter in the figure, the 2, second boring cutter, 3, third boring cutter, the 4, the 4th boring cutter, the 5, the 5th boring cutter, A, first Stepped hole, B, second step hole, C, third stepped hole, D, the 4th stepped hole, E, the 5th stepped hole, F, aperture, workpiece to be processed, 9, bolt, 10, drill bit, 11, knife bar, L1, second step hole depth, on L2, second step hole bottom hole to the workpiece to be processed The distance between end face, L3, workpiece to be processed upper surface to the third stepped hole bottom hole between distance, L4, work to be processed Part upper surface is the distance between to the 4th stepped hole bottom hole, L5, small hole depth, K1, the length of the bit, K2, the second boring cutter K3, axial distance allows knife space, the axial distance of K4, third boring cutter, the axial distance of K5, the 4th boring cutter, 1., hole diameter, 2., the diameter of axle of the first boring cutter, 3., the diameter of axle of the second boring cutter, 4., the diameter of axle of third boring cutter, 5., the diameter of axle of the 4th boring cutter.
Specific embodiment
Compound tool is bored to a kind of ladder boring of the present invention with regard to attached drawing 1-7 below to be described in detail below.
Embodiment 1
Compound tool is bored in a kind of ladder boring, for carrying out drilling and bore hole to workpiece to be processed S, including by drill bit 10 and knife The cutter hub that bar 11 is constituted, the drill bit 10 are installed on the cutter head bottom of the cutter hub, and the drill bit 10 is corresponding and for processing institute State the aperture F of workpiece to be processed;The knife bar 11 includes the compound cutter hub of the compound cutter hub in front end and rear end, the compound cutter hub in front end On be sequentially installed with the first boring cutter 1, the second boring cutter 2 of workpiece to be processed first step hole A, second step hole B described in boring;Institute Stating the compound cutter hub in rear end is by third stepped hole C, the 4th stepped hole D and the 5th step for processing the workpiece to be processed S Third boring cutter 3, the 4th boring cutter 4 and the 5th boring cutter 5 of hole E is combined;The first step hole A, second step hole B, third Stepped hole C, the 4th stepped hole D and the 5th stepped hole E are the stepped hole of coaxial different diameters, first boring cutter 1, the second boring cutter 2, Third boring cutter 3, the 4th boring cutter 4 and the stepped structure of the 5th boring cutter 5 are laid on the knife bar 11.
The first step hole A of the workpiece to be processed S is minimum aperture, is processed by the first boring cutter 1 of the knife bar front end; It is equipped with second step hole B in the reversed side of the first step hole A, is added by second boring cutter 2 adjacent with first boring cutter 1 Work;It is sequentially equipped with from inside to outside respectively by third boring cutter in the other side of the first step hole A according to ascending aperture 3, third stepped hole C, the 4th stepped hole D and the 5th stepped hole E of the 4th boring cutter 4 and the corresponding processing of the 5th boring cutter 5;In order to process The second step hole B of the workpiece to be processed S is reserved on the knife bar 11 and allows knife space K3, described that knife space K3 is allowed to be located at Between second boring cutter 2 and third boring cutter 3;The 5th stepped hole E is chamfered bore;
The material that the cutter hub uses is Cr12MoV;The drill bit is using hard alloy non-standard component;
First boring cutter 1, the second boring cutter 2, third boring cutter 3, the 4th boring cutter 4 and the 5th boring cutter 5 are sequentially welded on described On knife bar 11;The drill bit 10 is fixedly installed in the mounting hole that the cutter head bottom opens up by bolt 9;
In order to reduce cutting force, so that the hole processed is more stable, first boring cutter 1, the second boring cutter 2, third The blade of boring cutter 3, the 4th boring cutter 4 and the 5th boring cutter 5 is PCD material, and entire cutter hub needs to be G=6.3mm/s, n=5000RPM's Dynamic balancing;It is described that knife space K3 is allowed to should be greater than second step hole B bottom hole to institute for the ease of second step hole described in tool sharpening State the distance between the upper surface workpiece to be processed S L2;The axial distance K2 of second boring cutter 2 should be greater than the depth of second step hole B L1;
In order to guarantee the dimensional accuracy of the smallest first step hole A, the diameter of axle of second boring cutter 2 is 3. less than the first boring cutter 2 diameter of axle is 2.;In order to meet the depth of processing step, the axial distance K5's and the 4th stepped hole D of the 4th boring cutter 4 Depth L4 is identical, and distance is L3 between the bottom hole of the upper surface the workpiece to be processed S to the third stepped hole C, described to be added The work upper surface workpiece S to the distance between 4 bottom hole of the 4th stepped hole is L4, the axial distance K4 etc. of the third boring cutter 3 In L3-L4;In order to meet the diametric requirements of stepped hole, 2. the diameter of axle of first boring cutter 2 is equal to the straight of first step hole A 4. the diameter of axle of diameter, the third boring cutter is equal to the diameter of third stepped hole C;5. the diameter of axle of 4th boring cutter 4 is equal to the 4th The diameter of rank hole D.
The following are the process descriptions to workpiece to be processed S:
In Fig. 3, it would be desirable to which the stepped hole of processing is respectively first step hole A, second step hole B, third stepped hole C, the 4th stepped hole D, the 5th stepped hole E and aperture F.We are machined to make a reservation for small hole depth L5 first with drill bit machining small F When, withdrawing;Composite cutter is moved to the center of workpiece to be processed S stepped hole, starts to process first step hole A, see Fig. 4;
Composite cutter is moved to second step hole bottom hole to the distance between the workpiece to be processed upper surface position L2, then Second boring cutter bias move to first step hole A inner wall position, see Fig. 8, step 1, composite cutter start be with the axis of stepped hole The center of circle, (B- is 2.)/2 sizes are radius, do circular interpolation, process second step hole B, see Fig. 8, step 2;Then by the Then 1 step backtracking processes third stepped hole C, the 4th stepped hole D and the 5th stepped hole E to the center of circle of stepped hole;Most retreat Knife, completion of processing.

Claims (4)

1. compound tool is bored in a kind of ladder boring, for carrying out drilling and bore hole to workpiece to be processed, including by drill bit and knife bar structure At cutter hub, which is characterized in that the drill bit is installed on the cutter head bottom of the cutter hub, and the drill bit is corresponding simultaneously for processing institute State the aperture of workpiece to be processed;The knife bar includes the compound cutter hub of the compound cutter hub in front end and rear end, on the compound cutter hub in front end It is sequentially installed with workpiece to be processed first step hole, first boring cutter in second step hole, the second boring cutter described in boring;The rear end Compound cutter hub is by the third boring of third stepped hole, the 4th stepped hole and the 5th stepped hole for processing the workpiece to be processed Knife, the 4th boring cutter and the 5th boring cutter are combined;The first step hole, second step hole, third stepped hole, the 4th stepped hole It is the stepped hole of coaxial different diameters with the 5th stepped hole, first boring cutter, the second boring cutter, third boring cutter, the 4th boring cutter and the The stepped structure of five boring cutters is laid on the knife bar;
The first step hole of the workpiece to be processed is minimum aperture, is processed by the first boring cutter of the knife bar front end;Described The reversed side in first step hole is equipped with second step hole, is processed by second boring cutter adjacent with first boring cutter;
The first step hole the other side according to ascending aperture from inside to outside sequentially be equipped with respectively by third boring cutter, Third stepped hole, the 4th stepped hole and the 5th stepped hole of 4th boring cutter and the corresponding processing of the 5th boring cutter;
It is reserved on the knife bar and allows knife space, it is described that knife is allowed to be spatially located between second boring cutter and third boring cutter;It is described 5th stepped hole is chamfered bore;
It is described that knife space is allowed to should be greater than second step hole bottom hole the distance between to the workpiece to be processed upper surface;Second boring cutter Axial distance should be greater than the depth in second step hole;
The diameter of axle of the diameter of axle of second boring cutter less than the first boring cutter;
The axial distance of 4th boring cutter is identical as the depth of the 4th stepped hole, the workpiece to be processed upper surface to institute Stating distance between the bottom hole of third stepped hole is (L3), and the workpiece to be processed upper surface is between the 4th stepped hole bottom hole Distance be (L4), the axial distance of the third boring cutter is equal to (L3)-(L4);
The diameter of axle of first boring cutter is equal to the diameter in first step hole, and the diameter of axle of the third boring cutter is equal to third stepped hole Diameter;The diameter of axle of 4th boring cutter is equal to the diameter of the 4th stepped hole;
Ladder boring bore compound tool for workpiece to be processed the specific process steps are as follows:
Step 1: machining small
Ladder boring is bored to the predetermined position of the drill bit alignment workpiece to be processed of compound tool end, machining small is machined to make a reservation for When small hole depth, withdrawing;
Step 2: processing first step hole
The center that compound tool is moved to workpiece to be processed stepped hole is bored in ladder boring, processes first step hole;
Step 3: processing second step hole
Compound tool is bored in ladder boring and moves to second step hole bottom hole to the distance between the workpiece to be processed upper surface (L2) Position, then the second boring cutter bias is moved to and first step hole inner wall position;Composite cutter starts using the axis of stepped hole as the center of circle, (B- is 2.)/2 sizes are radius, do circular interpolation, process second step hole;
Step 3: processing remaining stepped hole
Ladder boring bores compound tool by backtracking to the center of circle of stepped hole, successively process third stepped hole, the 4th stepped hole and 5th stepped hole;Last withdrawing, completion of processing.
2. compound tool is bored in a kind of ladder boring as described in claim 1, it is characterized in that
The material that the cutter hub uses is Cr12MoV;The drill bit is using hard alloy non-standard component.
3. compound tool is bored in a kind of ladder boring as described in claim 1, it is characterized in that
First boring cutter, the second boring cutter, third boring cutter, the 4th boring cutter and the 5th boring cutter are sequentially welded on the knife bar;Institute It states drill bit and is bolted and be installed in the mounting hole that the cutter head bottom opens up.
4. compound tool is bored in a kind of ladder boring as described in claim 1, it is characterized in that
First boring cutter, the second boring cutter, third boring cutter, the 4th boring cutter and the 5th boring cutter blade be PCD material, entire cutter hub Need to do G=6.3mm/s, the dynamic balancing of n=5000RPM.
CN201710055104.6A 2017-01-24 2017-01-24 Compound tool is bored in a kind of ladder boring and its processing technology is bored in boring Active CN106694963B (en)

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CN202224672U (en) * 2011-12-07 2012-05-23 重庆志成机械股份有限公司 Combination tool for machining cam hole of cylinder head
CN102847996A (en) * 2012-09-27 2013-01-02 芜湖伯特利汽车安全系统有限公司 Drill bit applied to machining process
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4228322A1 (en) * 1992-08-26 1994-03-03 Guenther Wirth Drilling and endmilling tool for producing chamfered and profiled holes - has drill tip followed by reduced form milling section with shoulders allowing both ends of hole to be chamfered when tool is eccentrically rotated
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JP5476267B2 (en) * 2010-09-29 2014-04-23 アイシン・エィ・ダブリュ株式会社 Tap with drill
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CN202224672U (en) * 2011-12-07 2012-05-23 重庆志成机械股份有限公司 Combination tool for machining cam hole of cylinder head
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