CN108000081A - A kind of high speed CNC deep hole processing methods - Google Patents

A kind of high speed CNC deep hole processing methods Download PDF

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Publication number
CN108000081A
CN108000081A CN201711434270.3A CN201711434270A CN108000081A CN 108000081 A CN108000081 A CN 108000081A CN 201711434270 A CN201711434270 A CN 201711434270A CN 108000081 A CN108000081 A CN 108000081A
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CN
China
Prior art keywords
processing
cnc
deep hole
speed
hole processing
Prior art date
Application number
CN201711434270.3A
Other languages
Chinese (zh)
Inventor
邓乾云
陈建宾
杨加宝
张豪君
邹超
徐成帆
代航
Original Assignee
成都明锐精密模具有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 成都明锐精密模具有限公司 filed Critical 成都明锐精密模具有限公司
Priority to CN201711434270.3A priority Critical patent/CN108000081A/en
Publication of CN108000081A publication Critical patent/CN108000081A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23POTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/24Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies

Abstract

The invention discloses a kind of high speed CNC deep hole processing methods, the present invention improves post-processing step and passes through blanking, opens thick, heat treatment, and CNC finishing is completed, and has high accuracy, good surface smoothness;Its process-cycle is short, and workpiece surface is good, and risk is substantially improved well below traditional electro-discharge machining, production efficiency.On the other hand, for this method, by using with high rotating speed(Usual 30,000 revs/min)Accurate CNC, directly steel are processed, clamped one time complete, simplify procedure of processing, improve processing efficiency 35%, reduce the process-cycle 40%.On the other hand, the benefit of processing is obviously improved;CNC semifinishings and electrical discharge machining is not required, saves production cost 20% or so.Since clamped one time completes part, element precision is effectively guaranteed.

Description

A kind of high speed CNC deep hole processing methods

Technical field

The present invention relates to the precision die method of processing parts of mould manufacturing industry;In particular to one in mould parts The processing technology of kind high speed CNC deep hole processing methods.

Background technology

At present, it is always the processing difficulties of die industry for precision deep bore processing;Main cause is die industry Customization processing, the process-cycle is short, and material hardness is high, and tool wear is very fast.Also just because of precision deep bore processed and applied Extensively, therefore there is the implementation method of many this respects at present.

Found by retrieval, a kind of vertical CNC deep hole machining sides of the disclosure of the invention of patent No. CN201510572919.2 Method, includes the following steps:1)CNC machine main shaft rotates clockwise, and guiding drill bit is fed vertically, to work pieces process to default Guide hole depth;2)Cold drill bit in the replacement of CNC tool change arms, main shaft is with 500 turns per minute rotations counterclockwise, and Z axis is axially downward Feeding, while opens central water outlet, to work pieces process to guiding hole depth;3)Main shaft rotates clockwise, 500 turns per minute, Z axis edge Axial feed, to work pieces process to it is default speed-raising depth when, main shaft improve rotating speed to 3500 rpms, Z axis is fed vertically The effective depth of deep hole is machined to, main shaft stops, and feed reversing to safe distance, deep hole machining finishes Z axis vertically.

The patent of invention of patent No. CN201611057771.X discloses a kind of injection mould processing method, advantage of the present invention It has been significantly the machining accuracy for improving injection mold.Comprise the following steps:Machining blanks, calibration, open thick, heat treatment, shape Finishing, depth drill, pretreatment, finishing, the machining order in being processed by adjusting traditional injection moulding mould, while using pre- place Reason improves the mechanical performance of labor cost to be processed, significantly reduces the size deformation that blank occurs in process, overall processing Process is short, cost is low, difficulty of processing is low, applied widely.

The disclosure of the invention of patent No. CN201710729827.X a kind of boring method of small diameter and deep hole, its step are:① Deep hole length is 130 millimeters, and the aperture of deep hole is 1.6 millimeters;2. straight slot is opened up on product;3. the hypothesis A of deep hole to be processed, B, tetra- positions of C, D;4. the processing of pilot hole;6. deep hole machining, deep hole drill are with S200 mm/mins, feed rate The speed of F100rpm enters pilot hole at A, drills, after the apex point of deep hole drill is fed at C, depth drill Apex point is entered in the straight slot of the leftmost side;Then the rotating speed and feed speed of deep hole drill are changed, deep hole drill is again with S7000 millis M/min, the speed that feed rate is F30rpm starts to feed to the right since C places, feeds 0.3 millimeter every time, up to deep hole drill Apex point is completely extended across at B, and deep hole is all punched, and deep hole drill exits deep hole again, completes the processing of deep hole.

However, for precision deep bore processing, general deep hole machining is needed by blanking, is opened slightly, is heat-treated, corase grinding, CNC roughing, after semifinishing, then deep hole is discharged in the correction of single electrode clamping to electric spark again, generally once discharges Multiple electrodes can be used, so single clamping and the mode efficiency corrected are very slow, once electric spark clamping or school error, directly Connecing will cause mould parts to be scrapped;Therefore need to be improved.

The content of the invention

Therefore, in order to solve above-mentioned deficiency, the present invention provides a kind of high speed CNC deep hole processing methods herein;The present invention its Process-cycle is short, and workpiece surface is good, and risk is substantially improved well below traditional electro-discharge machining, production efficiency.The opposing party Face, for this method, by using with high rotating speed(Usual 30,000 revs/min)Accurate CNC, directly to steel carry out Processing, clamped one time are completed, and simplify procedure of processing, improve processing efficiency 35%, reduce the process-cycle 40%.On the other hand, process Benefit be obviously improved;Procedure of processing passes through blanking, opens thick, heat treatment, and CNC finishing is completed, and has high accuracy, good table Face finish.CNC semifinishings and electrical discharge machining is not required, saves production cost 20% or so.Since clamped one time is completed Part, therefore element precision is effectively guaranteed.

The present invention is achieved in that a kind of high speed CNC deep hole processing methods of construction, it is characterised in that:According to such as lower section Formula carries out;

Step 1:The hardness of material, into heat treatment, is first brought up into HRC by part after blanking and opening slightly:58-60;

Step 2:Hexahedron and size requirement by surface grinding machine limit feature, complete the processing of six face right angles, CNC uses carry The cutter of position is avoided, first time deep hole processing accomplishes 17.90 mm of diameter;Then a new cutter, second of deep hole processing are changed Accomplish 17.96 mm of diameter;

Step 3:Finally with than feed for the second time fast 50% speed, quick refine once, makes size reach the diameter of drawing requirement 18.000 mm, 0.005 mm of verticality in hole.

The invention has the advantages that:The present invention provides a kind of high speed CNC deep hole processing methods herein by improving, with showing There is same type mode to compare, the invention has the advantages that:

Advantage 1:Its process-cycle is short, and workpiece surface is good, and risk, well below traditional electro-discharge machining, production efficiency is significantly Lifting.

Advantage 2:For this method, by using with high rotating speed(Usual 30,000 revs/min)Accurate CNC, directly Steel are processed, clamped one time is completed, and simplifies procedure of processing, improves processing efficiency 35%, reduces the process-cycle 40%.

Advantage 3:The benefit of processing is obviously improved;Procedure of processing passes through blanking, opens thick, heat treatment, and CNC finishing is completed, With high accuracy, good surface smoothness.

Advantage 4:CNC semifinishings and electrical discharge machining is not required, saves production cost 20% or so.Due to clamped one time Part is completed, therefore element precision is effectively guaranteed.

Brief description of the drawings

Fig. 1 is the part noumenon that the present invention needs to process(Material 1.2379, HRC:58-60);

Fig. 2 is the deep hole area schematic of part(Diameter 18MM about depth 60MM, 0.015 mm of tolerance, it is desirable to surface VDI10, 0.005 mm of verticality of deep hole);

Fig. 3 is with the cutter schematic diagram for avoiding position(Face coat, 4 sword flat knifes).

Wherein:Part noumenon 1, part deep-hole region 2, cutter 3, other machining areas 4, cutter avoid position 5.

Embodiment

Below in conjunction with attached drawing 1- Fig. 3, the present invention is described in detail, to the technical solution in the embodiment of the present invention into Row clearly and completely describes, it is clear that described embodiment only part of the embodiment of the present invention, rather than whole realities Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work Every other embodiment, belong to the scope of protection of the invention.

The present invention by improve a kind of high speed CNC deep hole processing methods are provided herein, as shown in the figure, as follows into OK;

Embodiment:As shown in the figure, a kind of injection mold part, material 1.2379, HRC:58-60, centre have a diameter 18MM big About depth 60MM is, it is necessary to remove material, to reach the form and dimensional precision of drawing needs;

Implementation steps 1:The hardness of material, into heat treatment, is brought up to HRS by part after blanking and opening slightly:58-60;

Implementation steps 2:Hexahedron and size requirement by surface grinding machine limit feature, complete the processing of six face right angles, CNC is used With the cutter for avoiding position, first time deep hole processing accomplishes 17.90 mm of diameter;Then a new cutter is changed, second of processing Deep hole accomplishes 17.96 mm of diameter;

Implementation steps 3:Finally with than feed for the second time fast 50% speed, quick refine once, makes size reach drawing requirement 18.000 mm of diameter, 0.005 mm of verticality in hole.

After above-mentioned steps are realized, the advantage of the invention is that:

Advantage 1:Its process-cycle is short, and workpiece surface is good, and risk, well below traditional electro-discharge machining, production efficiency is significantly Lifting.

Advantage 2:For this method, by using with high rotating speed(Usual 30,000 revs/min)Accurate CNC, directly Steel are processed, clamped one time is completed, and simplifies procedure of processing, improves processing efficiency 35%, reduces the process-cycle 40%.

Advantage 3:The benefit of processing is obviously improved;Procedure of processing passes through blanking, opens thick, heat treatment, and CNC finishing is completed, With high accuracy, good surface smoothness.

Advantage 4:CNC semifinishings and electrical discharge machining is not required, saves production cost 20% or so.Due to clamped one time Part is completed, therefore element precision is effectively guaranteed.

Meanwhile the present invention is applied to some Premium Features in machining center numerical control program at the same time, does not do herein specifically It is bright.

The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention. A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one The most wide scope caused.

Claims (2)

  1. A kind of 1. high speed CNC deep hole processing methods, it is characterised in that:Carry out as follows;
    Step 1:The hardness of material, into heat treatment, is first brought up into HRC by part after blanking and opening slightly:58-60;
    Step 2:Hexahedron and size requirement by surface grinding machine limit feature, complete the processing of six face right angles, CNC uses carry The cutter of position is avoided, first time deep hole processing accomplishes diameter 17.90mm;Then a new cutter, second of deep hole processing are changed Accomplish diameter 17.96mm;
    Step 3:Finally with than feed for the second time fast 50% speed, quick refine once, makes size reach the diameter of drawing requirement 18.000 mm, 0.005 mm of verticality in hole.
CN201711434270.3A 2017-12-26 2017-12-26 A kind of high speed CNC deep hole processing methods CN108000081A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109482950A (en) * 2018-11-13 2019-03-19 北京星航机电装备有限公司 A kind of inner wing class formation machining accuracy deep hole cutter and processing method
CN110293378A (en) * 2019-07-24 2019-10-01 东莞市凯融光学科技有限公司 A kind of ultraprecise bushing processing method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102039519A (en) * 2010-12-15 2011-05-04 重庆远达催化剂制造有限公司 Manufacturing process of high-precision extrusion die for DeNOx catalyst
CN105127481A (en) * 2015-09-10 2015-12-09 苏州金世博精密机电有限公司 Vertical CNC deep-hole machining method
CN106078127A (en) * 2016-05-16 2016-11-09 苏州博豪精密机械有限公司 A kind of mould circle enters the processing technique of son
CN106584042A (en) * 2017-02-07 2017-04-26 广东坚美铝型材厂(集团)有限公司 Manufacturing process for extrusion die

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102039519A (en) * 2010-12-15 2011-05-04 重庆远达催化剂制造有限公司 Manufacturing process of high-precision extrusion die for DeNOx catalyst
CN105127481A (en) * 2015-09-10 2015-12-09 苏州金世博精密机电有限公司 Vertical CNC deep-hole machining method
CN106078127A (en) * 2016-05-16 2016-11-09 苏州博豪精密机械有限公司 A kind of mould circle enters the processing technique of son
CN106584042A (en) * 2017-02-07 2017-04-26 广东坚美铝型材厂(集团)有限公司 Manufacturing process for extrusion die

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
郑卫国: "数控铣加工中刀具和切削用量的选择", 《机械管理开发》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109482950A (en) * 2018-11-13 2019-03-19 北京星航机电装备有限公司 A kind of inner wing class formation machining accuracy deep hole cutter and processing method
CN110293378A (en) * 2019-07-24 2019-10-01 东莞市凯融光学科技有限公司 A kind of ultraprecise bushing processing method

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Application publication date: 20180508

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