CN102476200B - Processing method and processing tool for step deep hole on combined machine tool - Google Patents
Processing method and processing tool for step deep hole on combined machine tool Download PDFInfo
- Publication number
- CN102476200B CN102476200B CN 201010561165 CN201010561165A CN102476200B CN 102476200 B CN102476200 B CN 102476200B CN 201010561165 CN201010561165 CN 201010561165 CN 201010561165 A CN201010561165 A CN 201010561165A CN 102476200 B CN102476200 B CN 102476200B
- Authority
- CN
- China
- Prior art keywords
- hole
- step drill
- deep hole
- drill
- aperture
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
Landscapes
- Drilling Tools (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a processing method for a step deep hole on a combined machine tool, and the method is used for processing the step deep hole of which the big hole length is more than the small hole length. The processing method comprises the following steps: positioning a first step drill by virtue of a guide sleeve on a template, and drilling and turning a big hole to depth required by the technology; because the length of the smaller diameter part of the first step drill is 15-25mm, forming a small hole guide hole with the corresponding length size on the inner side of the big hole; positioning a second step drill by taking the processed big hole as guidance, and drilling and turning the small hole to the depth required by the technology by taking the small hole guide hole as the basis, wherein the larger diameter part of the second step drill is a non-cutting section, the diameter of the second step drill is smaller than that of the processed large hole; and when the smallhole is drilled to the depth required by the technology, ensuring that the larger diameter part of the second step drill still does not reach the step end surface of the step deep hole. The inventionalso discloses a corresponding processing tool. According to the method and the tool, the problems that the step small hole is always drilled in a sloping mode, a small drill is always broken and thelike in the processing process of the step deep hole can be effectively solved.
Description
Technical field
The present invention relates to processing method and the process tool of a species stage deep hole, particularly a kind of big hole length is greater than processing method and the process tool of ladder deep hole on building-block machine of little hole length.
Background technology
At present, big hole length mainly contains two kinds greater than the processing technology of ladder deep hole on building-block machine of little hole length: a kind of is the macropore of operation 1 (or work step 1) subdrilling ladder deep hole, be that big drill bit arrives the technological requirement degree of depth with the fairlead spitting drill macropore on the template, be that operation 2 (or work step 2) is bored aperture then, be that little drill bit arrives the technological requirement degree of depth with the fairlead spitting drill aperture on the template, the advantage of this technology is to reduce the drilling degree of depth of little drill bit, thereby reduce little drill bit because the poor rigidity problem that fractures, present this technology is used more generally, but its shortcoming is also obvious, because fairlead is far away apart from aperture when boring aperture, fairlead does not have positioning action basically, the 118 ° of conical surface drillings that just two cutting edges stay when big drill bit drilling macropore of little drill bit, therefore as easy as rolling off a log brill is inclined to one side, for the thinner deep hole of some wall ratios, the wall phenomenon often appears drilling; Another kind of technology is the aperture of operation 1 (or work step 1) subdrilling ladder deep hole, be that little drill bit arrives the technological requirement degree of depth with the fairlead spitting drill aperture on the template, be that operation 2 (or work step 2) is bored macropore then, be that big drill bit arrives the technological requirement degree of depth with the location of the fairlead on template expanded hole, the macropore when advantage of this technology is the beginning drilling, aperture all is from surface of the work, fairlead on the template has all played positioning action, so perpendicularity of aperture, better with the axiality of macropore, reduce and bore inclined to one side phenomenon generation, but its shortcoming is that little drill bit is because drilling is deep, and therefore self poor rigidity fractures than being easier to.
Summary of the invention
The present invention is in order to overcome defective in the above-mentioned prior art, under the condition of big hole length greater than little hole length of ladder deep hole, a kind of processing method and process tool are provided, and the ladder aperture that can effectively solve the appearance of ladder deep hole work in-process bores problems such as inclined to one side, little drill bit fractures easily easily.
The invention provides the processing method of a species stage deep hole on building-block machine, this method is used for big hole length greater than the processing of the ladder deep hole of little hole length, comprise the steps: to use first step drill with the location of the fairlead on the template, and the drilling macropore is to the technological requirement degree of depth; The larger diameter part of first step drill is suitable with described big bore dia, and smaller diameter portion and the hole diameter of first step drill are suitable; And the length of the smaller diameter portion of first step drill is 15 to 25mm, makes the inboard corresponding aperture of length dimension that forms of macropore draw the hole, and this Design of length can improve the positioning accuracy of fairlead, effectively avoids occurring boring partially and the phenomenon that fractures; Use second step drill to be guide-localization with the macropore of processing, and to draw the hole with aperture be that basic drilling aperture is to the technological requirement degree of depth; The larger diameter of second step drill partly is non-segment of cutting, and its diameter is less than the described big bore dia of having processed, and the larger diameter part of star drill second step drill during to the technological requirement degree of depth is the ladder end of the described ladder deep hole of no show still.
Wherein, the diameter of the larger diameter of second step drill part is littler by 0.05 to 0.10mm than the described big bore dia of having processed, strengthens the rigidity of drill bit when playing the guide-localization effect.
Wherein, when the aperture of ladder deep hole began drilling, the larger diameter of second step drill partly had the length greater than 15mm to be positioned at the macropore of ladder deep hole for guide-localization.Can effectively guarantee the ladder deep hole aperture the position degree and with the axiality of the macropore of ladder deep hole.
Wherein, the drilling mode of first step drill and second step drill is the index(ing) feed mode.Can effectively improve chip removal and cooling and lubricating.
The present invention also provides the process tool of a species stage deep hole on building-block machine, be used for big hole length greater than the processing of the ladder deep hole of little hole length, comprise the drilling macropore to the technological requirement degree of depth and form aperture and draw first step drill in hole and be used for the drilling aperture to second step drill of the technological requirement degree of depth; First step drill is by the location of the fairlead on the template, the macropore guide-localization that second step drill has been processed by first step drill; The length of the smaller diameter portion of first step drill is 15 to 20mm, is used for the processing that aperture draws the hole.
Wherein, chamfering is set for two of second step drill guiding ligament front ends and the rear end does not arrange relief angle, can make the larger diameter part of second step drill enter in the macropore smoothly and can not carry out secondary cutting to manufactured macropore.
Wherein, the width of two guiding ligaments is 2 to 2.5mm.
Wherein, for arc transition is connected, can effectively avoid concentrated the fractureing of causing of stress between the larger diameter of second step drill part and the smaller diameter portion.
Wherein, the helicoid of first step drill and second step drill is the parabola face, can effectively strengthen unbearable intensity and be convenient to chip removal.
Compared with prior art, the present invention has following beneficial effect:
Technology and process tool that big hole length of the present invention is processed at building-block machine greater than the ladder deep hole of little hole length, the aperture that has solved the ladder deep hole effectively bores problems such as inclined to one side, little drill bit fractures easily easily, improve the crudy of product, reduced production cost.
Description of drawings
Fig. 1 is the drilling schematic diagram of first step drill in the processing technology of ladder deep hole of the present invention on building-block machine;
Fig. 2 is the drilling schematic diagram of second step drill in the processing technology of ladder deep hole of the present invention on building-block machine;
Fig. 3 is the local enlarged diagram of the present invention's second step drill;
Fig. 4 is that the A-A of Fig. 3 is to cutaway view.
Mark the following drawings mark thereon by reference to the accompanying drawings:
The 1-workpiece to be processed, the 2-fairlead, the 3-template, 4-first step drill, the 5-extension bar, the 6-main shaft, the 7-main spindle box, 8-second step drill, 9-connects circular arc, 10-guiding ligament chamfering, the 11-ligament that leads.
The specific embodiment
Below in conjunction with accompanying drawing, a specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subjected to the restriction of the specific embodiment.
As shown in Figure 1, 2, the processing method of ladder deep hole of the present invention on building-block machine adopts compound drilling to cut, and namely earlier with the macropore of first step drill, 4 drillings ladder deep hole to be processed, forms aperture at the macropore front end simultaneously and draws the hole; Use second step drill, 8 drilling apertures then.First and second step drill is fixedlyed connected with the main shaft 6 in the main spindle box 7 by extension bar 5 respectively.The larger diameter part of first step drill 4 is suitable with the big bore dia of ladder deep hole to be processed, be used for the cutting macropore, the hole diameter of the diameter of smaller diameter portion and ladder deep hole is suitable, and the length of smaller diameter portion is 15 to 25mm, is used for the hole of drawing of cutting aperture; The diameter of the larger diameter part of second step drill 8 is slightly less than big bore dia, be used for when using second step drill, 8 cutting apertures, cutter being carried out guide-localization, diameter and the hole diameter of the smaller diameter portion of second step drill 8 are suitable, its length needs the technological requirement degree of depth greater than aperture, like this when cutting aperture to the technological requirement degree of depth, the end of the larger diameter part of second step drill 8 can not contact with the ladder end face, thereby destroys the cascaded surface that has formed by 4 drillings of first step drill.Because the larger diameter of second step drill 8 part only plays the guide-localization effect, and be not used in cutting, therefore its diameter than the big bore dia little 0.05 of ladder deep hole to 0.10mm, two guiding ligament front ends of second step drill 8 grind chamfering, and relief angle is not ground in the rear end, article two, the width of guiding ligament 11 can be designed as 2 to 2.5mm, (shows and connects circular arc 9 and guiding ligament 10) as shown in Figure 3, Figure 4.
Processing method of the present invention specifically comprises the steps:
The aperture of ladder deep hole draws the about deeply 15mm～25mm of hole drill, its aperture for step 2 processing ladder deep hole is done and is drawn the hole, the aperture of ladder deep hole draws the hole and why can not bore too dark, be because will bore the dark smaller diameter portion that just must lengthen first step drill 4, and be with the location of the fairlead on the template during the first step drill drilling, first step drill 4 and the distance increase of fairlead 2 localization parts to the workpiece drilling surface when so if the long meeting of smaller diameter portion causes beginning drilling, thereby reduced the positioning accuracy of fairlead, inclined to one side phenomenon appears boring easily, relatively poor because of the rigidity of step drill smaller diameter portion in addition, fracture easily after the lengthening.
This moment, the larger diameter of second step drill was not partly cut, as previously mentioned, its diameter is than the little 0.05mm～0.10mm of big bore dia of ladder deep hole, its effect is the rigidity that guide-localization strengthens drill bit simultaneously, in order to make it successfully to import the macropore of ladder deep hole, its two guiding ligament fronts must grind chamfering, do not allow to grind relief angle, and the width of two guiding ligaments is designed to 2mm～2.5mm; The larger diameter of second step drill 8 part is connected with arc transition with the smaller diameter portion of second step drill 8 simultaneously, can effectively reduce this place's stress, prevents that the smaller diameter portion of second step drill 8 from fractureing from this; For the position degree of the aperture that guarantees the ladder deep hole and with the axiality of the macropore of ladder deep hole, the larger diameter of second step drill partly had greater than 15mm and enters guide-localization in the macropore of ladder deep hole when the aperture that must guarantee the ladder deep hole began drilling; And when the aperture of ladder deep hole gets into the technological requirement degree of depth, second step drill, 8 larger diameters part (being targeting part) can not connect with the ladder end face of the aperture of ladder deep hole tactile (as previously mentioned, as long as the length of the smaller diameter portion of assurance second step drill is greater than little hole length), this must be noted that when the design step drill.
In order to strengthen unbearable intensity and to be convenient to chip removal, first step drill 4 that above-mentioned steps 1 and step 2 are used respectively and the helicoid of second step drill 8 all are designed and manufactured into the parabola face; In order to improve chip removal and cooling and lubricating, step 1 and step 2 are adding the mode that can adopt index(ing) feed man-hour.
In sum, big hole length on building-block machine in the processing work 1 is as follows greater than the process of the ladder deep hole of little hole length: use first step drill 4 with fairlead 2 location on the template 3, macropore and the aperture of the ladder deep hole in the drilling workpiece 1 draw the hole, through behind the index(ing) feed repeatedly, the macropore of the ladder deep hole of workpiece 1 gets into the technological requirement degree of depth, and the aperture of the ladder deep hole in the workpiece 1 draws hole drill to dark 15mm～20mm; Use second step drill 8 to draw the hole based on the macropore of the ladder deep hole in the workpiece of having processed 1 as the aperture of guide-localization, ladder deep hole, to the technological requirement degree of depth, so far finish the processing of whole ladder deep hole through the aperture of the ladder deep hole in the drilling workpiece 1 behind the index(ing) feed repeatedly.
Technology and process tool that big hole length of the present invention is processed at building-block machine greater than the ladder deep hole of little hole length, the aperture that has solved the ladder deep hole effectively bores problems such as inclined to one side, little drill bit fractures easily easily, improve the crudy of product, reduced production cost.
More than disclosed only be a specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (8)
1. the processing method of a species stage deep hole on building-block machine is used for big hole length greater than the processing of the ladder deep hole of little hole length, it is characterized in that, comprises the steps:
Use first step drill with the location of the fairlead on the template, and the drilling macropore is to the technological requirement degree of depth; The larger diameter part of first step drill is suitable with described big bore dia, and smaller diameter portion and the hole diameter of first step drill are suitable; And the length of the smaller diameter portion of first step drill is 15 to 25mm, makes the inboard corresponding aperture of length dimension that forms of macropore draw the hole;
Use second step drill to be guide-localization with the described macropore of processing, and to draw the hole with described aperture be that basic drilling aperture is to the technological requirement degree of depth; The larger diameter of described second step drill partly is non-segment of cutting, and its diameter is less than the described big bore dia of having processed, and the larger diameter part of described star drill second step drill during to the technological requirement degree of depth is the ladder end of the described ladder deep hole of no show still;
The drilling mode of above-mentioned first step drill and second step drill is the index(ing) feed mode.
2. the processing method of ladder deep hole according to claim 1 on building-block machine is characterized in that, the diameter of the larger diameter of described second step drill part than the described big bore dia of having processed little 0.05 to 0.10mm.
3. the processing method of ladder deep hole according to claim 1 and 2 on building-block machine, it is characterized in that, when the aperture of described ladder deep hole began drilling, the larger diameter of second step drill partly had the length greater than 15mm to be positioned at the macropore of ladder deep hole for guide-localization.
4. the process tool of a species stage deep hole on building-block machine, be used for big hole length greater than the processing of the ladder deep hole of little hole length, it is characterized in that, comprise the drilling macropore to the technological requirement degree of depth and form aperture and draw first step drill in hole and be used for the drilling aperture to second step drill of the technological requirement degree of depth; Described first step drill is by the location of the fairlead on the template, the described macropore guide-localization that second step drill has been processed by first step drill; The length of the smaller diameter portion of described first step drill is 15 to 20mm, is used for the processing that aperture draws the hole.
5. the process tool of ladder deep hole according to claim 4 on building-block machine is characterized in that, chamfering is set two guiding ligament front ends of described second step drill and the rear end does not arrange relief angle.
6. the process tool of ladder deep hole according to claim 5 on building-block machine is characterized in that, the width of described two guiding ligaments is 2 to 2.5mm.
7. the process tool of ladder deep hole according to claim 4 on building-block machine is characterized in that, is connected for arc transition between the larger diameter of described second step drill part and the smaller diameter portion.
8. the process tool of ladder deep hole according to claim 4 on building-block machine is characterized in that, the helicoid of described first step drill and second step drill is the parabola face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010561165 CN102476200B (en) | 2010-11-23 | 2010-11-23 | Processing method and processing tool for step deep hole on combined machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010561165 CN102476200B (en) | 2010-11-23 | 2010-11-23 | Processing method and processing tool for step deep hole on combined machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102476200A CN102476200A (en) | 2012-05-30 |
| CN102476200B true CN102476200B (en) | 2013-10-02 |
Family
ID=46089047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010561165 Active CN102476200B (en) | 2010-11-23 | 2010-11-23 | Processing method and processing tool for step deep hole on combined machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102476200B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112895239A (en) * | 2021-01-18 | 2021-06-04 | 山东玲珑机电有限公司 | Micro-pore mold processing method and micro-pore mold |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3027829B1 (en) * | 2014-11-03 | 2016-11-11 | Seb Sa | METHOD FOR DRILLING A SENSOR RECEPTION TUNNEL IN A COOKING CONTAINER AND CONTAINER THEREFROM |
| CN104625142A (en) * | 2015-01-16 | 2015-05-20 | 哈尔滨飞机工业集团有限责任公司 | Method for machining deep hole |
| CN105345059A (en) * | 2015-12-16 | 2016-02-24 | 广西玉柴机器股份有限公司 | Machining method for chamfered deep holes |
| CN105945520B (en) * | 2016-05-26 | 2018-04-13 | 长治清华机械厂 | A kind of cross holes thin wall special-shaped inner hole of cylinder processing method |
| CN106216727B (en) * | 2016-07-29 | 2018-11-16 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of multi-stage stairs throttle orifice method for turning |
| CN113798781A (en) * | 2020-06-15 | 2021-12-17 | 河南中岳非晶新型材料股份有限公司 | Machining process of air blowing guide pipe |
| CN114378325B (en) * | 2022-01-14 | 2023-07-04 | 一重集团大连核电石化有限公司 | Method for machining special-shaped deep holes in large-sized workpiece |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009184044A (en) * | 2008-02-05 | 2009-08-20 | Tungaloy Corp | Stepped twist drill and method of manufacturing the same |
| CN201300232Y (en) * | 2008-11-07 | 2009-09-02 | 上海中船三井造船柴油机有限公司 | Orientation drill |
| CN201437161U (en) * | 2009-06-04 | 2010-04-14 | 宁波远达船机配件有限公司 | Positioning device of deep hole processing drill bit |
| CN101780555A (en) * | 2009-12-08 | 2010-07-21 | 苏州富莱克精密工具有限公司 | Step drill |
-
2010
- 2010-11-23 CN CN 201010561165 patent/CN102476200B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009184044A (en) * | 2008-02-05 | 2009-08-20 | Tungaloy Corp | Stepped twist drill and method of manufacturing the same |
| CN201300232Y (en) * | 2008-11-07 | 2009-09-02 | 上海中船三井造船柴油机有限公司 | Orientation drill |
| CN201437161U (en) * | 2009-06-04 | 2010-04-14 | 宁波远达船机配件有限公司 | Positioning device of deep hole processing drill bit |
| CN101780555A (en) * | 2009-12-08 | 2010-07-21 | 苏州富莱克精密工具有限公司 | Step drill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112895239A (en) * | 2021-01-18 | 2021-06-04 | 山东玲珑机电有限公司 | Micro-pore mold processing method and micro-pore mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102476200A (en) | 2012-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102476200B (en) | Processing method and processing tool for step deep hole on combined machine tool | |
| US20130058734A1 (en) | Combined drill and reamer tool | |
| ATE450333T1 (en) | DRILLING TOOL FOR DRILLING HOLES IN METAL WORKPIECES | |
| US6428250B2 (en) | Drill bit for wood drilling | |
| CN203621579U (en) | Efficient drilling and reaming compound tool with guide function | |
| CN205551557U (en) | High -efficient fluted drill of layering drilling | |
| KR20120099207A (en) | Deep hole drill | |
| CN204818198U (en) | Drill | |
| CN201493518U (en) | Steel rail drilling and chamfering drilling tool | |
| CN203030995U (en) | Compound cutter | |
| CN205362791U (en) | A composite drill bit for thin wall hole machining | |
| CN209223236U (en) | A kind of process unit of turning deep hole | |
| JP2011194541A (en) | Hole-machining method by reamer | |
| CN208628484U (en) | Deep hole drilling and boring machine boring device for long-axle workpieces | |
| CN201320625Y (en) | Spiral drill reamer | |
| CN209139911U (en) | A kind of drilling reamer being machined with tapered hole | |
| JPH07108409A (en) | Varnishing drill | |
| KR20170020100A (en) | Drill and reamer | |
| CN103909307B (en) | The compound of step deep hole finish reams process tool | |
| CN217412568U (en) | Double-guide type drilling and reaming combined insert drill bit suitable for more than 3 times of aperture | |
| CN211101785U (en) | Left-handed chamfering tool for machining inner hole of free-cutting steel magnetic sleeve | |
| CN216541024U (en) | Fastening type chamfer drill | |
| AU2003292124A1 (en) | Tubular blank for the production of drilling tools, method for the production of a blank and method for the production of drilling tools | |
| CN210908268U (en) | Comprehensive milling cutter | |
| CN212551893U (en) | Polishing drill bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |