CN114985790A - Hub decoration hole machining method - Google Patents
Hub decoration hole machining method Download PDFInfo
- Publication number
- CN114985790A CN114985790A CN202210619408.1A CN202210619408A CN114985790A CN 114985790 A CN114985790 A CN 114985790A CN 202210619408 A CN202210619408 A CN 202210619408A CN 114985790 A CN114985790 A CN 114985790A
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- Prior art keywords
- drilling
- drill
- hole
- decorative hole
- drill bit
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003754 machining Methods 0.000 title claims abstract description 13
- 238000005034 decoration Methods 0.000 title claims abstract description 5
- 238000005553 drilling Methods 0.000 claims abstract description 57
- 238000005520 cutting process Methods 0.000 claims abstract description 38
- 238000001816 cooling Methods 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 5
- 238000003672 processing method Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 239000010937 tungsten Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 230000001788 irregular Effects 0.000 abstract description 12
- 238000012545 processing Methods 0.000 abstract description 11
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002173 cutting fluid Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/08—Drills combined with tool parts or tools for performing additional working
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/84—Steel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
A hub decoration hole machining method comprises the following steps: the method comprises the following steps: the machining center calls a pre-drilling cutter to pre-drill a positioning hole, the center of the drill point of the pre-drilling cutter is a 90-degree peak angle with the diameter being 1/3, and a decorative hole drill bit is positioned; step two: the machining center calls a decorative hole drill bit and drills the decorative hole according to the pre-drilling positioning; the invention solves the processing scheme of the irregular decorative hole of the cutting plane of the aluminum alloy hub, avoids the generation of waste products caused by cutter striking, has high precision, good dynamic balance of the drill bit and stable and reliable high-efficiency drilling, and avoids the problems that the cutter relieving deformation of the drill bit is caused by the side force generated by the irregular cutting surface of the blank cutting point on the drill bit and the axis of the decorative hole deviates from the axis of the set coordinate by the use of the pre-drilling.
Description
Technical Field
The invention relates to the technical field of hub machining, in particular to a method for machining a hub decorative hole.
Background
At present, more and more products with decorative holes are designed on aluminum alloy hubs, the diameters of the decorative holes are less than 9mm, the depths of some product holes are more than 70mm, the processing beat of a product processing center with the decorative holes seriously influences the production efficiency of units, the cutting faces of blank decorative holes at the cutting points are irregular, drilling bits are easy to drill during cutting (500-600 pieces of overall tungsten steel drilling bits are frequently broken), the position degree of the decorative holes is unstable, the drilling efficiency is low (the setting of a cutter yielding feeding parameter is less than 0.08 mm/r), the drilling mode needs to be completed by a G83 pecking type drilling circulation, multiple times of cutter advancing and retreating seriously restrict the production efficiency and the product quality of a machining process, and waste products caused by the breakage of the drilling bits every time.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a hub decorative hole processing method, which can avoid the phenomenon that the side force is generated on a drill bit by the irregular cutting surface of a blank cutter-entering point, so that the cutter of the drill bit is deformed, and the axis of a decorative hole deviates from the axis of a set coordinate.
In order to achieve the purpose, the technical scheme of the invention is as follows: a hub decoration hole machining method comprises the following steps:
the method comprises the following steps: the machining center calls a pre-drilling cutter to pre-drill a positioning hole, the center of the drill point of the pre-drilling cutter is a 90-degree peak angle with the diameter being 1/3, and a decorative hole drill bit is positioned;
step two: and the machining center calls the decorative hole drill bit to drill and drill the decorative hole according to the pre-drilling positioning.
In some embodiments, the cutting speed of the decorative hole drilling is 6000 r/min, the main shaft multiplying factor is 120%, the feeding parameter is 0.2mm/r, the feeding multiplying factor is 150%, and the drilling mode is set to a bottom-drilling G81 mode.
In some embodiments, the pre-drill tool cutting edge is a drilling and milling composite tool with a diameter of-0.1 mm of the drill diameter of the decorative hole and a length of 25 mm.
In some embodiments, the decorative hole drill adopts a tungsten steel twist internal cooling coating, and the cutting edge of the drill is sufficiently cooled.
Compared with the prior art, the invention has the beneficial effects that: the invention solves the processing scheme of the irregular decorative hole of the cutting plane of the aluminum alloy hub, avoids the generation of waste products caused by cutting, has high precision, good dynamic balance of a drill bit and stable and reliable efficient drilling, and avoids the problems that the cutter of the drill bit is deformed due to the side force generated by the irregular cutting surface of a blank cutting point on the drill bit, and the axis of the decorative hole deviates from the axis of a set coordinate by using the pre-drilling.
Drawings
FIG. 1 is a schematic view of a decorative hole of an aluminum alloy hub according to the present invention.
FIG. 2 is a schematic diagram of the pre-drilling of the present invention.
FIG. 3 is a schematic diagram of cutter back-off generated during the process of drilling a hole-decorating drill bit by the conventional method.
FIG. 4 is a schematic view of a pre-drilled locating hole of the present invention.
FIG. 5 is a schematic view of the present invention for manufacturing a decorative hole drill.
In the figure: 1. the machining method comprises the following steps of (1) forming an aluminum alloy hub, (2) forming a decorative hole, (3) forming an irregular cutting surface of a blank cutting point, 4) pre-drilling, (5) pre-drilling a composite cutting edge, (6) pre-drilling a 90-degree peak angle, 7) forming a heat-shrinkable drilling handle, 8) forming a decorative hole drill bit, 9) forming a set coordinate axis of the decorative hole, and 10 forming a coordinate axis after cutter relieving in the drilling process of the decorative hole drill bit.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A hub decorative hole processing method according to an embodiment of the present invention will be described below with reference to fig. 1 to 5 in conjunction with the embodiment.
A hub decorative hole processing method comprises the steps of firstly, quickly processing a positioning hole through a cutter of a pre-drill 4 before processing, then calling a decorative hole drill bit 8 to finish processing of a hole according to the positioning of the pre-drill 4, wherein the cutting rotating speed of a processing program is set to be 6000 r/min, and the multiplying power of a main shaft is 120%; the feeding parameter is 0.2mm/r, the feeding multiplying power is 150%, and the drill is provided with an inner cooling hole, so that tool withdrawal is not needed during drilling, and the drilling mode is a first-drilling-to-bottom G81 mode.
The cutting edge of the pre-drilling 4 tool is designed by adopting a drilling and milling composite tool, the diameter is designed according to the diameter of a decorative hole drill bit 8-0.1 mm, the length of a working part is designed according to 25mm so as to ensure the rigidity of the pre-drilling 4, the cutting edge is designed by adopting the drilling and milling composite tool, cutter back-off caused by irregular processing surface is avoided during drilling, and the 90-degree peak angle 6 with the diameter of 1/3 is designed at the center part of a drill point, so that the decorative hole drill bit 8 is convenient to position.
The decorative hole drill bit 8 is designed by adopting a tungsten steel twist internal cooling coating, the tungsten steel and diamond coatings are high in hardness and wear-resistant, the drill bit cutting edge is fully cooled by internal cooling, the accurate positioning of the decorative hole drill bit 8 is guaranteed, the smoothness of the processed hole wall of the decorative hole 2 is guaranteed, the twist design meets the beat requirements of strong drilling capability and high production efficiency, the decorative hole drill bit 8 is matched with a heat-shrinkable drill, the precision is high, the dynamic balance of the drill bit is good, efficient drilling is stable and reliable, the diameter of the bright head of the drill is small, the decorative hole drill bit can be widely suitable for processing hubs with different shapes, and the external cooling of a deep hole drill can be fully guaranteed during drilling.
As shown in figure 3, when the decorative hole drill 8 drills, the blank cutting point irregular cutting surface 3 generates lateral force to the drill to cause the drill to give way and deform, the axis of the drilled decorative hole 2 inclines and deviates from a set coordinate axis 9, the position degree of the decorative hole 2 is out of tolerance due to the inconsistency of the blank cutting point irregular cutting surface 3 in production, and the drill breaks off in drilling when the elastic deformation of the drill exceeds the yield limit.
As shown in figure 4, the positioning hole is drilled, due to the fact that the pre-drilling 4 adopts the design of the drilling and milling composite cutting edge 5 on the design of the cutting edge, meanwhile, the working length of the pre-drilling 4 is 25mm, the rigidity of the pre-drilling 4 is guaranteed, and cutter back-off and deformation caused by drilling are effectively avoided.
As shown in FIG. 5, when the decorative hole drill 8 drills, the decorative hole drill 8 can be quickly positioned with the aid of the positioning hole, and the drilling task can be smoothly completed.
The processing method of the invention is introduced by taking the processing hole depth of 75mm and the decorative hole 2 of 5 holes as an example:
pre-drilling a positioning hole: the machining center calls a pre-drill 4 cutter to drill on an XY cutting surface, the cutter cancels radius compensation, the cutter length performs forward compensation, the pre-drill 4 performs feeding in every turn, an absolute coordinate performs G56 workpiece coordinate system, polar coordinate programming is performed, the pre-drill 4 rapidly moves to a pitch circle radius 60, the 1 st hole coordinate included angle is 270 degrees XY coordinates, cutting fluid is started, the number 4 cutter compensation is performed, the Z axis is rapidly positioned, the main shaft rotates to call a positioning hole drilling subprogram to pre-drill 4 positioning holes, the 2 nd hole coordinate, the 3 rd hole coordinate, the 4 th hole coordinate and the 5 th hole coordinate are machined according to the same program after the 1 st hole is machined, and the Z axis returns to a tool changing point after the pre-drill 4 positioning holes are machined.
And (3) drilling and processing the decorative hole: the machining center calls a tool for machining the decorative hole 2, drilling is conducted on an XY cutting surface, radius compensation is cancelled by the tool, forward compensation is conducted on the length of the tool, the drill bit performs feeding in every rotation, a G56 workpiece coordinate system is conducted on absolute coordinates, polar coordinate programming is conducted, the decorative hole 2 drill moves to a pitch circle radius 60 quickly, the 1 st hole coordinate included angle is 270 degrees XY coordinates, cutting fluid is started, tool compensation of No. 5 is conducted, Z axis quick positioning is conducted, the spindle rotates to conduct cutting fluid internal cooling opening, a subprogram for drilling the decorative hole 2 is called, the 2 nd hole coordinate, the 3 rd hole coordinate, the 4 th hole coordinate, the 5 th hole coordinate, machining of the decorative hole 2 is conducted according to the same program after the 1 st hole is machined, and the Z axis returns to a tool changing point.
Compared with the prior art, the invention has the beneficial effects that: the invention solves the processing scheme of the irregular decorative hole of the cutting plane of the aluminum alloy hub, avoids the generation of waste products caused by cutting, has high precision, good dynamic balance of a drill bit and stable and reliable efficient drilling, and avoids the problems that the cutter of the drill bit is deformed due to the side force generated by the irregular cutting surface of a blank cutting point on the drill bit, and the axis of the decorative hole deviates from the axis of a set coordinate by using the pre-drilling.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A hub decoration hole processing method is characterized in that: the method comprises the following steps:
the method comprises the following steps: the machining center calls a pre-drilling cutter to pre-drill a positioning hole, the center of the drill point of the pre-drilling cutter is a 90-degree peak angle with the diameter being 1/3, and a decorative hole drill bit is positioned;
step two: and the machining center calls the decorative hole drill bit to drill and drill the decorative hole according to the pre-drilling positioning.
2. The hub decorative hole machining method according to claim 1, characterized in that: and in the second step, the cutting rotating speed of the drilled decorative hole is 6000 r/min, the multiplying power of the main shaft is 120%, the feeding parameter is 0.2mm/r, the feeding multiplying power is 150%, and the drilling mode is a first-drill-to-bottom G81 mode.
3. The hub decorative hole machining method according to claim 2, characterized in that: the cutting edge of the pre-drilling cutter is a drilling and milling composite cutter, the diameter of the cutting edge is-0.1 mm of the diameter of the drill bit of the decorative hole, and the length of the cutting edge is 25 mm.
4. The hub decorative hole machining method according to claim 2, characterized in that: the drill bit with the decorative hole adopts the tungsten steel twist inner-cooling coating to fully cool the cutting edge of the drill bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210619408.1A CN114985790A (en) | 2022-06-02 | 2022-06-02 | Hub decoration hole machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210619408.1A CN114985790A (en) | 2022-06-02 | 2022-06-02 | Hub decoration hole machining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114985790A true CN114985790A (en) | 2022-09-02 |
Family
ID=83031320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210619408.1A Pending CN114985790A (en) | 2022-06-02 | 2022-06-02 | Hub decoration hole machining method |
Country Status (1)
| Country | Link |
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| CN (1) | CN114985790A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04348802A (en) * | 1991-05-28 | 1992-12-03 | Matsushita Electric Works Ltd | Method and device for machining hole |
| RU2176176C2 (en) * | 2000-01-05 | 2001-11-27 | Открытое акционерное общество "Тульский оружейный завод" | Method of drilling deep openings of small diameter, and bladed drill of one-way cutting |
| CN101041190A (en) * | 2006-03-22 | 2007-09-26 | 日本工程株式会社 | Drill, wall protector and drilling method |
| CN101862843A (en) * | 2010-06-13 | 2010-10-20 | 大连太平洋多层线路板有限公司 | Drilling method of thick copper power circuit board of 5-12oz |
| CN102935524A (en) * | 2012-11-09 | 2013-02-20 | 沈阳黎明航空发动机(集团)有限责任公司 | Deep hole drilling processing method of high temperature alloy material casing |
| CN103203485A (en) * | 2013-02-28 | 2013-07-17 | 攀枝花钢城集团有限公司 | Method for adopting drilling machine to drill holes on joint parts of different-hardness materials along joint surfaces |
| CN103785875A (en) * | 2014-01-06 | 2014-05-14 | 江苏通达动力科技股份有限公司 | Drilling method for drilling auxiliary device |
| 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 |
| CN105562751A (en) * | 2014-11-03 | 2016-05-11 | Seb公司 | Process for drilling a tunnel in which to place a sensor in a cooking vessel and vessel created by said process |
| CN108341071A (en) * | 2017-01-25 | 2018-07-31 | 波音公司 | Method and system for connecting structure |
| CN112008101A (en) * | 2020-07-16 | 2020-12-01 | 上海航天精密机械研究所 | Drilling method for ultra-deep long hole |
| CN112372024A (en) * | 2020-08-27 | 2021-02-19 | 沈阳富创精密设备股份有限公司 | Method for machining deep hole with diameter more than 30 times by using inner-cooling drill bit |
-
2022
- 2022-06-02 CN CN202210619408.1A patent/CN114985790A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04348802A (en) * | 1991-05-28 | 1992-12-03 | Matsushita Electric Works Ltd | Method and device for machining hole |
| RU2176176C2 (en) * | 2000-01-05 | 2001-11-27 | Открытое акционерное общество "Тульский оружейный завод" | Method of drilling deep openings of small diameter, and bladed drill of one-way cutting |
| CN101041190A (en) * | 2006-03-22 | 2007-09-26 | 日本工程株式会社 | Drill, wall protector and drilling method |
| CN101862843A (en) * | 2010-06-13 | 2010-10-20 | 大连太平洋多层线路板有限公司 | Drilling method of thick copper power circuit board of 5-12oz |
| CN102935524A (en) * | 2012-11-09 | 2013-02-20 | 沈阳黎明航空发动机(集团)有限责任公司 | Deep hole drilling processing method of high temperature alloy material casing |
| CN103203485A (en) * | 2013-02-28 | 2013-07-17 | 攀枝花钢城集团有限公司 | Method for adopting drilling machine to drill holes on joint parts of different-hardness materials along joint surfaces |
| CN103785875A (en) * | 2014-01-06 | 2014-05-14 | 江苏通达动力科技股份有限公司 | Drilling method for drilling auxiliary device |
| CN105562751A (en) * | 2014-11-03 | 2016-05-11 | Seb公司 | Process for drilling a tunnel in which to place a sensor in a cooking vessel and vessel created by said process |
| 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 |
| CN108341071A (en) * | 2017-01-25 | 2018-07-31 | 波音公司 | Method and system for connecting structure |
| CN112008101A (en) * | 2020-07-16 | 2020-12-01 | 上海航天精密机械研究所 | Drilling method for ultra-deep long hole |
| CN112372024A (en) * | 2020-08-27 | 2021-02-19 | 沈阳富创精密设备股份有限公司 | Method for machining deep hole with diameter more than 30 times by using inner-cooling drill bit |
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