CN105345059A - Machining method for chamfered deep holes - Google Patents
Machining method for chamfered deep holes Download PDFInfo
- Publication number
- CN105345059A CN105345059A CN201510944085.3A CN201510944085A CN105345059A CN 105345059 A CN105345059 A CN 105345059A CN 201510944085 A CN201510944085 A CN 201510944085A CN 105345059 A CN105345059 A CN 105345059A
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- China
- Prior art keywords
- step drill
- hole
- fairlead
- deep hole
- basis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a machining method for chamfered deep holes. A stepped drill is adopted for drilling, and the rear section of the stepped drill is located through a rear guide sleeve in drilling. The machining method is characterized in that in drilling, the front section of the stepped drill is located through a front guide sleeve, a basic guide hole is drilled in a work-piece, then the front guide sleeve is moved away, and drilling is continuously carried out until the depth requirement of the process is met. According to the machining method, the problems that the chamfered deep holes of orifices are easily deflected in machining and the front section of the stepped drill is easily broken can be effectively solved, the machining quality of products can be improved, and the cutter cost can be lowered.
Description
Technical field
The present invention relates to machined deep hole field, particularly a kind of processing method with chamfering deep hole.
Background technology
In machined deep hole field, to the processing of aperture band chamfering deep hole, in order to reduce manufacturing procedure, reduce production cost, the general method processing adopting the length of the length increasing step drill leading portion and the rear fairlead increasing step drill back segment location.
Fig. 1, to the method schematic diagram that Figure 3 shows that tradition processing aperture band chamfering deep hole, namely adopts step drill to process in figure, step drill leading portion requires to adapt with the degree of depth of deep hole, and after step drill back segment adopts, fixed cover is to increase the rotational stabilization of step drill; But in process, because step drill leading portion is long, and adding man-hour just to positioning with step drill back segment, when causing machining, step drill leading portion overhangs longer, swings large, positioning precision is poor, rigidity is not enough, and therefore boring partially appears in handling ease, also easily causes step drill leading portion to fracture, have a strong impact on the crudy of product, add the cost of cutter simultaneously.
Summary of the invention
The present invention is to overcome defect in above-mentioned prior art, provides a kind of processing method with chamfering deep hole, and the deep hole positional precision utilizing the method to process is high, and product quality is high.
For achieving the above object, the invention provides a kind of processing method with chamfering deep hole, adopt step drill to hole, when holing, step drill back segment is positioned by rear fairlead, it is characterized in that, is first positioned to cover by leading at step drill leading portion during boring, and on workpiece, get out a basis draw hole, then remove front fairlead and continue boring to the technological requirement degree of depth.
Further, when boring basis and drawing hole, the axis of front fairlead and rear fairlead is kept to overlap.
Further, it is 15 ~ 20mm that hole depth is drawn on described basis.
Further, described basis draw hole drill good after, first step drill is exited, then removes front fairlead, then feeding step drill continue boring.
Compared with prior art, the beneficial effect that the present invention has: locate with step drill leading portion and back segment respectively by adopting front fairlead and rear fairlead, ensure the positional precision of aperture band chamfering deep hole machining, enhance the rigidity of step drill, solve the difficult problem that processing aperture band chamfering deep hole easily bores partially, step drill leading portion easily fractures, ensure that product quality, reduce the cost of charp tool.
Accompanying drawing explanation
Fig. 1 is band chamfering deep-hole structures schematic diagram;
Fig. 2 is existing process view;
Fig. 3 is existing process finishing view;
Fig. 4 is the view that the present invention processes;
Fig. 5 is machining state schematic diagram of the present invention.
In figure, 1-workpiece, 11-chamfering, 12-deep hole, fairlead before 2-, fairlead after 3-, 4-step drill, 41-step drill leading portion, 42-step drill back segment, 5-extension bar, 6-main shaft, 7-main spindle box, 8-template, 9-guide rail, the movable little template of 10-, 101-is spacing, 13-oil cylinder.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of detailed description of the invention.
A kind of processing method with chamfering deep hole of the present invention, this method adopts a kind of in the existing processing method shown in Fig. 2, Fig. 3 on basis, and increase the improvement of a front activity-oriented device, method is see shown in Fig. 4, Fig. 5.
When employing step drill of the present invention is holed, be divided into two stages to carry out, first bore a basis and draw hole, and then be worked into technological requirement deep hole; Concrete operations are as follows: when starting to hole, and step drill back segment 42 is positioned by rear fairlead 3, positioned at step drill leading portion 41 by front fairlead 2 simultaneously, start step drill and hole, so just can get out a basis and draw hole on workpiece; Then remove front fairlead 2 and continue boring to the technological requirement degree of depth.Positioned by front fairlead 2 pairs of step drill leading portions 41, the drilling direction that drill bit is honest can be kept, ensure that benchmark draws the precision in hole.
When boring basis and drawing hole, the axis of front fairlead 2 and rear fairlead 3 is kept to overlap, to ensure machining accuracy.To bore the degree of depth of drawing hole in basis be good with 15 ~ 20mm, stable guide effect can be reached.
Basis draw hole drill good after, to shifting out of front fairlead 2, can various ways be adopted, as two semi-circular structure can be adopted, then by a stretching mechanism, front fairlead 2 be opened towards both sides, make step drill can complete follow-up boring smoothly; Certainly, also can adopt as the frame mode in accompanying drawing 4, Fig. 5, first step drill 4 be exited, then upwards remove front fairlead 2, then feeding step drill 4 continues boring.Draw hole by benchmark and rear fairlead 3 pairs of step drills 4 position, the quality of deep hole 12 can be ensured.
In real work: as shown in Figure 4, front fairlead 2 is arranged in movable little template 10, moved downward along the guide rail 9 be fixed in template 8 by the little template 10 of oil cylinder (or cylinder) 13 drive activity, when spacing 101 in the little template of activity 10 are just in time pressed in the upper surface of guide rail 9, be arranged on the front fairlead 2 on little collapsible form 10 and the concentricity line of rear fairlead 3 be arranged in template 8, then main spindle box 7 drives the step drill leading portion 41 be fixedly connected by extension bar 5 and main shaft 6, back segment 42 enters front fairlead 2 and rear fairlead 3 inner position respectively, a bit of see Fig. 1 of the deep hole 12 of processing work 1, hole is drawn based on long 15-20mm.Due to step drill leading portion 41 during processing, back segment 42 is located with front fairlead 2 and rear fairlead 3 respectively, and front fairlead 2 and the concentricity line of rear fairlead 3, and front fairlead 2 is near apart from the machined surface of workpiece 1, therefore positioning accurate is high, thus ensure that the positional precision of hole machined is drawn on the basis of deep hole 12, the length simultaneously entering rear fairlead 3 due to step drill back segment 42 when just starting to process is 15-20mm, therefore the swing of step drill 4 can effectively be prevented, thus the rigidity of step drill 4 is significantly strengthened, effectively solve step drill leading portion 41 because swinging the difficult problem that large poor rigidity easily fractures,
The diameter of step drill leading portion 41, length respectively with the diameter of deep hole 12, the degree of depth is suitable, orifice chamfer 11 size of step drill back segment 42 chamfer dimesion and deep hole 12 is suitable, therefore the diameter of step drill back segment 42 is larger than the diameter of leading portion 41, so want the orifice chamfer 11 of deep hole processing 12, first must get out of the way front fairlead 2, otherwise step drill back segment 42 can't pass, therefore first step drill 4 to return fast under the drive of main spindle box 7 until step drill leading portion 41 exit completely before fairlead 2, then front movable guide bush 2 is withdrawn into and gets out of the way step drill back segment 42 completely by the position of not interfering as shown in Figure 5 under the drive of oil cylinder 13,
As shown in Figure 5, the home of 5mm before main spindle box 7 drives step drill 4 fast feed to draw final position, hole to basis, utilize step drill leading portion 41 and basis to draw hole and step drill back segment 42 and rear fairlead 3 to position, then feeding is worked into the degree of depth and orifice chamfer 11 size of deep hole 12 technological requirement.Because hole is drawn on the basis that machined long 15-20mm deep hole 12, therefore when following process, step drill leading portion 41 still have 10-15mm enter basis draw hole location, therefore follow-up processing be on the guiding basis that hole is drawn on basis continue processing, ensure that follow-up machining accuracy; Man-hour is added follow-up beginning, step drill back segment 42 has 25-35mm to enter rear fairlead 3 to locate, therefore effectively can prevent the swing of step drill 4, thus the rigidity of step drill 4 is significantly strengthened, effectively solve step drill leading portion 41 and easily to fracture problem because swinging large poor rigidity.Comprehensively above-mentioned, the object that hole is drawn on processing basis is before removing after fairlead 2, continues processing, be directly processed to the degree of depth and orifice chamfer 11 size of deep hole 12 technological requirement on basis under drawing the location of hole and rear fairlead 3.
In sum, the processing method of aperture of the present invention band chamfering deep hole effectively can solve the difficult problem that aperture band chamfering deep hole work in-process appearance is easily bored partially, step drill leading portion easily fractures, improve product processing quality, reduce the cost of charp tool, enhance productivity.
Be only specific embodiments of the invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (4)
1. the processing method with chamfering deep hole, adopt step drill to hole, when holing, step drill back segment (42) is positioned by rear fairlead (3), it is characterized in that, first positioned by front fairlead (2) at step drill leading portion (41) during boring, and on workpiece, get out a basis draw hole, then remove front fairlead (2) and continue boring to the technological requirement degree of depth.
2. a kind of processing method with chamfering deep hole according to claim 1, is characterized in that, when boring basis and drawing hole, keeps the axis of front fairlead (2) and rear fairlead (3) to overlap.
3. a kind of processing method with chamfering deep hole according to claim 1, is characterized in that, it is 15 ~ 20mm that hole depth is drawn on described basis.
4. a kind of processing method with chamfering deep hole according to claim 1, it is characterized in that, described basis draw hole drill good after, first step drill (4) is exited, then remove front fairlead (2), then feeding step drill (4) continues boring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510944085.3A CN105345059A (en) | 2015-12-16 | 2015-12-16 | Machining method for chamfered deep holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510944085.3A CN105345059A (en) | 2015-12-16 | 2015-12-16 | Machining method for chamfered deep holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105345059A true CN105345059A (en) | 2016-02-24 |
Family
ID=55321200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510944085.3A Pending CN105345059A (en) | 2015-12-16 | 2015-12-16 | Machining method for chamfered deep holes |
Country Status (1)
| Country | Link |
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| CN (1) | CN105345059A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110116226A (en) * | 2019-06-19 | 2019-08-13 | 高显忠 | The side opening equipment for automatically processing of column |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11216640A (en) * | 1998-02-02 | 1999-08-10 | Toshiba Mach Co Ltd | Control device for drilling work machine by drill and drilling work method |
| JP2004337997A (en) * | 2003-05-13 | 2004-12-02 | Mitsubishi Materials Corp | Stepped deep hole machining method and stepped drill |
| CN201338102Y (en) * | 2009-01-12 | 2009-11-04 | 广西玉柴机器股份有限公司 | Front range compound boring cutter |
| CN102233561A (en) * | 2011-04-27 | 2011-11-09 | 苏州工业园区高登威科技有限公司 | Starlike clamp spring installation device |
| CN202062097U (en) * | 2011-05-04 | 2011-12-07 | 肇庆市丰驰精密金属制品有限公司 | Mold pin deep hole machining drilling tool |
| CN102335769A (en) * | 2010-07-16 | 2012-02-01 | 上海汇大机械制造有限公司 | Method and tool for processing precast hole with circumferential incomplete hole wall |
| CN102476200A (en) * | 2010-11-23 | 2012-05-30 | 广西玉柴机器股份有限公司 | Processing method and processing tool for step deep hole on combined machine tool |
| CN203382194U (en) * | 2013-07-02 | 2014-01-08 | 芜湖长鹏汽车零部件有限公司 | Automobile cushion fabric raw material conveying device |
| CN103909307A (en) * | 2013-01-09 | 2014-07-09 | 广西玉柴机器股份有限公司 | Composite finish reaming tool of stepped deep holes |
| CN104439397A (en) * | 2014-11-13 | 2015-03-25 | 贵州凯星液力传动机械有限公司 | High-precision deep hole combination drill and machining method thereof |
-
2015
- 2015-12-16 CN CN201510944085.3A patent/CN105345059A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11216640A (en) * | 1998-02-02 | 1999-08-10 | Toshiba Mach Co Ltd | Control device for drilling work machine by drill and drilling work method |
| JP2004337997A (en) * | 2003-05-13 | 2004-12-02 | Mitsubishi Materials Corp | Stepped deep hole machining method and stepped drill |
| CN201338102Y (en) * | 2009-01-12 | 2009-11-04 | 广西玉柴机器股份有限公司 | Front range compound boring cutter |
| CN102335769A (en) * | 2010-07-16 | 2012-02-01 | 上海汇大机械制造有限公司 | Method and tool for processing precast hole with circumferential incomplete hole wall |
| CN102476200A (en) * | 2010-11-23 | 2012-05-30 | 广西玉柴机器股份有限公司 | Processing method and processing tool for step deep hole on combined machine tool |
| CN102233561A (en) * | 2011-04-27 | 2011-11-09 | 苏州工业园区高登威科技有限公司 | Starlike clamp spring installation device |
| CN202062097U (en) * | 2011-05-04 | 2011-12-07 | 肇庆市丰驰精密金属制品有限公司 | Mold pin deep hole machining drilling tool |
| CN103909307A (en) * | 2013-01-09 | 2014-07-09 | 广西玉柴机器股份有限公司 | Composite finish reaming tool of stepped deep holes |
| CN203382194U (en) * | 2013-07-02 | 2014-01-08 | 芜湖长鹏汽车零部件有限公司 | Automobile cushion fabric raw material conveying device |
| CN104439397A (en) * | 2014-11-13 | 2015-03-25 | 贵州凯星液力传动机械有限公司 | High-precision deep hole combination drill and machining method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110116226A (en) * | 2019-06-19 | 2019-08-13 | 高显忠 | The side opening equipment for automatically processing of column |
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Application publication date: 20160224 |