JP3010810B2 - High silicon aluminum bore surface processing method - Google Patents
High silicon aluminum bore surface processing methodInfo
- Publication number
- JP3010810B2 JP3010810B2 JP19614491A JP19614491A JP3010810B2 JP 3010810 B2 JP3010810 B2 JP 3010810B2 JP 19614491 A JP19614491 A JP 19614491A JP 19614491 A JP19614491 A JP 19614491A JP 3010810 B2 JP3010810 B2 JP 3010810B2
- Authority
- JP
- Japan
- Prior art keywords
- honing
- bore
- bore surface
- boring
- rough
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
- B23Q3/15713—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle
- B23Q3/1572—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle the storage device comprising rotating or circulating storing means
- B23Q3/15726—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle the storage device comprising rotating or circulating storing means the storage means rotating or circulating in a plane parallel to the axis of the spindle
- B23Q3/1574—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools a transfer device taking a single tool from a storage device and inserting it in a spindle the storage device comprising rotating or circulating storing means the storage means rotating or circulating in a plane parallel to the axis of the spindle the axis of the stored tools being arranged perpendicularly to the rotating or circulating plane of the storage means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、シリコン含有率の高
いアルミニウム合金製シリンダブロック（ハイシリコン
アルミシリンダブロック）のボア表面に、シリコンを突
出させる表面処理を施すに先立ってボーリング加工とホ
ーニング加工とを行うに際し用いて好適な加工方法に関
するものである。BACKGROUND OF THE INVENTION The present invention relates to a boring process and a honing process which are performed prior to a surface treatment for projecting silicon on a bore surface of an aluminum alloy cylinder block having a high silicon content (high silicon aluminum cylinder block). And a processing method suitable for use in performing the method.
【０００２】[0002]
【従来の技術】近年、アルミシリンダブロックのさらな
る軽量化やシリンダ間隔の接近による小型化のため、鋳
鉄スリーブを設けずしてシリンダボア表面の磨耗防止を
図るべく、ハイシリコンアルミシリンダブロックのボア
表面を平滑に加工した後そこにシリコンを突出させる表
面処理を施す場合が増加している。2. Description of the Related Art In recent years, in order to further reduce the weight of an aluminum cylinder block and reduce its size by approaching the cylinder interval, the bore surface of a high-silicon aluminum cylinder block has been modified to prevent wear of the cylinder bore surface without providing a cast iron sleeve. There is an increasing number of cases where a surface treatment for projecting silicon after smoothing is performed.
【０００３】ところで、かかるシリンダブロックのボア
表面の加工および表面処理を行う際し、従来は例えば図
２に示すように、鋳造等によって形成したハイシリコン
アルミシリンダブロック６のシリンダボア部6aに、先ず
工程１で中ぐり盤７によりラフボーリング加工を行っ
て、そのボア表面6bの荒取りを行い、次いで工程２で中
ぐり盤７によりファインボーリング加工を行って、その
ボア表面6bの中心位置精度を出し、次いで工程３でホー
ニング盤８によりラフホーニング加工を行って、そのボ
ア表面6bの破砕した初晶シリコンを含む表層を除去し、
次いで工程４でホーニング盤８によりファインホーニン
グ加工を行って、初晶シリコンを破砕しないようにしつ
つそのボア表面6bの内径寸法精度を出し、その後の工程
５でシリンダブロック６のシリンダボア部6a内に腐食液
９を注入して、その表面6bに表面腐食処理を施し、初晶
シリコンを突出させる、という方法が採られていた。By the way, when processing and surface treatment of the bore surface of such a cylinder block, conventionally, as shown in FIG. 2, for example, a process is first performed on a cylinder bore portion 6a of a high silicon aluminum cylinder block 6 formed by casting or the like. In step 1, rough boring is performed by the boring machine 7 to roughen the bore surface 6b. Then, in step 2, fine boring is performed by the boring machine 7 to obtain the center position accuracy of the bore surface 6b. Then, in step 3, rough honing is performed by the honing machine 8 to remove the surface layer containing the crushed primary crystal silicon on the bore surface 6b,
Then, in step 4, fine honing is performed by the honing machine 8 to obtain the dimensional accuracy of the inner diameter of the bore surface 6b while preventing the primary crystal silicon from being crushed. In the subsequent step 5, the inside of the cylinder bore 6a of the cylinder block 6 is corroded. A method has been adopted in which a liquid 9 is injected, the surface 6b is subjected to a surface corrosion treatment, and primary silicon is projected.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら従来のホ
ーニング盤８にあっては、内径寸法の拡大が目的である
ため、ホーニング工具10の支持軸10aがそのホーニング
盤８の主軸に対し自由に偏心してワークの下孔の位置に
倣い得るよう、その主軸に支持軸10a が、中心軸線の自
由な平行移動を可能とするオルダム継手タイプの自在継
手11を介して取付けられており、これがため上記従来の
方法では、ホーニング加工工程3, 4でボア表面6bの中心
精度出しができず、それゆえ上記ファインボーリング加
工工程２が不可欠となって工程数が多くなり、加工工数
が嵩むという問題があった。However, in the conventional honing machine 8, since the purpose is to increase the inner diameter, the support shaft 10a of the honing tool 10 is freely eccentric with respect to the main shaft of the honing machine 8. A support shaft 10a is attached to a main shaft of the work via an Oldham joint type universal joint 11 which enables free parallel movement of the center axis so as to follow the position of the prepared hole of the work. In the method, the center accuracy of the bore surface 6b cannot be determined in the honing steps 3 and 4, and therefore, the fine boring step 2 is indispensable, and the number of steps is increased, and the number of steps is increased.
【０００５】また、ボア表面6bのファインボーリング加
工は、初晶シリコンの破砕をできるだけ抑制して次のラ
フホーニング加工工程３での取り代を減らす必要上か
ら、ダイヤモンド等を用いた高価な工具で、しかも高い
剛性を持つ中ぐり盤７を使用して行う必要があり、これ
がため設備コストが嵩むという問題もあった。In addition, fine boring of the bore surface 6b requires an expensive tool using diamond or the like because it is necessary to minimize the crushing of primary silicon and reduce the margin in the next rough honing step 3. In addition, it is necessary to use a boring machine 7 having high rigidity, which causes a problem that the equipment cost increases.
【０００６】[0006]
【課題を解決するための手段】この発明は、上述の課題
を有利に解決した加工方法を提供することを目的とする
ものであり、この発明のハイシリコンアルミボア表面の
加工方法は、ハイシリコンアルミシリンダブロックのボ
ア表面に、シリコンを突出させる表面処理を施すに先立
って、ボーリング加工とホーニング加工とを行うに際
し、前記ボア表面に、ラフボーリング加工による荒取り
と、ホーニング工具の軸位置をシリンダブロックに対し
所定ボア中心位置に位置決めしてのラフホーニング加工
による中心位置精度出しおよび破砕した初晶シリコンを
含む表層の除去と、ファインホーニング加工による内径
寸法精度出しとを順次に行うことを特徴としているもの
である。SUMMARY OF THE INVENTION An object of the present invention is to provide a processing method which advantageously solves the above-mentioned problems, and a method for processing the surface of a high-silicon aluminum bore according to the present invention is as follows. Prior to performing a boring process and a honing process on the bore surface of the aluminum cylinder block before performing a surface treatment for projecting silicon, the bore surface is roughed by rough boring process, and the axial position of the honing tool is set on the cylinder surface. It is characterized in that the center position accuracy is determined by rough honing with positioning at the predetermined bore center position for the block, the surface layer containing crushed primary crystal silicon is removed, and the inner diameter accuracy is determined by fine honing processing in order. Is what it is.
【０００７】[0007]
【作用】かかる加工方法によれば、ラフボーリング加工
による荒取り後のラフホーニング加工を、シリンダブロ
ックに対しホーニング工具の軸位置を所定ボア中心位置
に位置決めして行うことで、そのラフホーニング加工に
より、ラフボーリング加工で破砕した初晶シリコンを含
む表層の除去と併せてボア表面の中心位置精度出しを行
い、その後にファインホーニング加工による内径寸法精
度出しを行うことから、ファインボーリング加工を行わ
ずしてボア表面の中心位置精度出しを行うことができる
ので、ファインボーリング加工工程を不要とし得て工程
数の削減により加工工数を削減することができ、また、
高価な工具や、高い剛性を持つ中ぐり盤を不要とし得
て、設備コストを削減することができる。According to this working method, rough honing after roughing by rough boring is performed by positioning the axis position of the honing tool at the predetermined bore center position with respect to the cylinder block, thereby performing the rough honing. In addition to removing the surface layer containing primary crystal silicon crushed by rough boring, the center position accuracy of the bore surface was determined, and then the inner diameter accuracy was determined by fine honing, eliminating the need for fine boring. The accuracy of the center position of the bore surface can be determined by using the fine boring process.
Expensive tools and boring machines with high rigidity can be dispensed with, and equipment costs can be reduced.
【０００８】[0008]
【実施例】以下に、この発明の実施例を図面に基づき詳
細に説明する。図１は、この発明のハイシリコンアルミ
ボア表面の加工方法の一実施例を示す工程図であり、こ
の実施例ではボア表面の加工および表面処理を行う際
し、鋳造等によって形成したハイシリコンアルミシリン
ダブロック６のシリンダボア部6aに、先ず図２に示す従
来の方法と同様に、工程12で中ぐり盤７によりラフボー
リング加工を行って、そのボア表面6bの荒取りを行う。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a process chart showing an embodiment of a method for processing the surface of a high silicon aluminum bore according to the present invention. In this embodiment, when performing processing and surface treatment of the bore surface, a high silicon aluminum formed by casting or the like is used. In the step 12, rough boring is performed on the cylinder bore 6 a of the cylinder block 6 by the boring machine 7 in the same manner as in the conventional method shown in FIG. 2, and the bore surface 6 b is roughened.
【０００９】しかしてここでは、次に工程13でホーニン
グ盤16によりラフホーニング加工を行って、そのボア表
面6bの中心位置精度を出しつつ、そのボア表面6bの破砕
した初晶シリコンを含む表層を除去する。すなわちこの
実施例では、ホーニング盤16として、ワークテーブルを
水平面内で任意の位置に移動させ得るNCホーニング盤を
用い、かつ、そのホーニング盤16の主軸にホーニング工
具10の支持軸10a を自在継手11を介さず直接取付けてそ
のホーニング工具10の水平方向位置を固定し、前記ワー
クテーブル上にシリンダブロック６をそのロケート孔等
により位置決めして固定して、NC制御でワークテーブル
ひいてはシリンダブロック６を水平移動させることによ
り、ボア表面6bの中心軸線の正規の位置にホーニング工
具10の支持軸10a の中心軸線の位置を一致させ、その状
態で、ホーニング工具10をボア部6a内に挿入して回転お
よび昇降させてシリンダブロック６のボア表面6bをラフ
ホーニング加工することにより、ボア表面6bの中心位置
精度を出す。However, here, in step 13, rough honing is performed by the honing machine 16 to obtain the center position accuracy of the bore surface 6b and to remove the surface layer containing the crushed primary crystal silicon on the bore surface 6b. Remove. That is, in this embodiment, as the honing machine 16, an NC honing machine capable of moving a work table to an arbitrary position in a horizontal plane is used, and the support shaft 10a of the honing tool 10 is attached to the main shaft of the honing machine 16 by a universal joint 11. The honing tool 10 is directly mounted without any intervening means, and the horizontal position of the honing tool 10 is fixed. The cylinder block 6 is positioned and fixed on the work table by its locate holes and the like, and the work table and the cylinder block 6 are horizontally controlled by NC control. By moving, the position of the center axis of the support shaft 10a of the honing tool 10 is matched with the normal position of the center axis of the bore surface 6b, and in this state, the honing tool 10 is inserted into the bore 6a to rotate and rotate. The bore surface 6b of the cylinder block 6 is raised and lowered to perform rough honing processing, thereby obtaining the center position accuracy of the bore surface 6b.
【００１０】しかる後ここでは、工程14で上記と同様の
ホーニング盤16により、従来の方法と同様に自在継手11
を使用してファインホーニング加工を行って、初晶シリ
コンを破砕しないようにしつつそのボア表面6bの内径寸
法精度を出し、その後の工程15でシリンダブロック６の
シリンダボア6a内に腐食液９を注入して、その表面6bに
表面腐食処理を施し、初晶シリコンを突出させる。Thereafter, in step 14, the universal joint 11 is used in the same manner as in the conventional method using the same honing machine 16 as described above.
In order to prevent the primary crystal silicon from being crushed, the inner diameter of the bore surface 6b is determined while performing fine honing processing, and the corrosive liquid 9 is injected into the cylinder bore 6a of the cylinder block 6 in the subsequent step 15. Then, the surface 6b is subjected to a surface corrosion treatment to protrude the primary crystal silicon.
【００１１】かかる実施例の加工方法によれば、NCホー
ニング盤によるラフホーニング加工によってボア表面6b
の中心位置精度を出すので、ファインボーリング加工を
行わずしてその中心位置精度出しができ、従って、ファ
インボーリング加工工程を不要とし得て工程数の削減に
より加工工数を削減することができるとともに、高価な
工具や高剛性の中ぐり盤を不要とし得て設備コストを削
減することができる。なお、通常のNCホーニング盤によ
って上記中心位置精度出しを実際に行った結果では、±
20μm 以下という充分な位置精度が得られた。According to the working method of this embodiment, the bore surface 6b is formed by rough honing using an NC honing machine.
The center position accuracy can be obtained without fine boring, so that the fine boring process can be omitted, and the number of processes can be reduced by reducing the number of processes, and Expensive tools and high-rigidity boring machines can be eliminated, and equipment costs can be reduced. In addition, the result of actually performing the above center position accuracy calculation using a normal NC honing machine,
Sufficient positional accuracy of 20 μm or less was obtained.
【００１２】以上、図示例に基づき説明したが、この発
明は上述の例に限定されるものでなく、例えば上記例の
NCホーニング盤以外の装置を使用してホーニング工具の
軸位置の位置決めを行っても良い。Although the present invention has been described with reference to the illustrated examples, the present invention is not limited to the above examples.
The axis position of the honing tool may be positioned using a device other than the NC honing machine.
【００１３】[0013]
【発明の効果】かくしてこの発明のハイシリコンアルミ
ボア表面の加工方法によれば、ラフボーリング加工後の
ラフホーニング加工を、シリンダブロックに対しホーニ
ング工具の軸位置を所定ボア中心位置に位置決めして行
い、その後ファインホーニング加工を行うことにより、
ファインボーリング加工を行わずしてボア表面の中心位
置精度出しができるので、ファインボーリング加工工程
を不要とし得て工程数の削減により加工工数を削減する
ことができ、また、高価な工具や、高い剛性を持つ中ぐ
り盤を不要とし得て、設備コストを削減することができ
る。As described above, according to the high silicon aluminum bore surface processing method of the present invention, rough honing after rough boring is performed by positioning the axial position of the honing tool at the predetermined bore center position with respect to the cylinder block. , Then by performing fine honing,
Since the center position accuracy of the bore surface can be obtained without performing fine boring, the fine boring process can be eliminated, reducing the number of processes and reducing the number of processing steps. A rigid boring machine can be dispensed with, and equipment costs can be reduced.
【図１】この発明のハイシリコンアルミボア表面の加工
方法の一実施例を示す工程図である。FIG. 1 is a process diagram showing one embodiment of a method for processing a high silicon aluminum bore surface of the present invention.
【図２】従来のハイシリコンアルミボア表面の加工方法
を示す工程図である。FIG. 2 is a process chart showing a conventional method for processing the surface of a high silicon aluminum bore.
６ アルミシリンダブロック 6a ボア部 6b ボア表面 ７ 中ぐり盤 ９ 腐食液 10 ホーニング工具 10a 支持軸 11 自在継手 12 ラフボーリング加工工程 13 ラフホーニング加工工程 14 ファインホーニング加工工程 15 表面腐食処理工程 16 ホーニング盤 6 Aluminum cylinder block 6a Bore 6b Bore surface 7 Boring machine 9 Corrosion liquid 10 Honing tool 10a Support shaft 11 Universal joint 12 Rough boring process 13 Rough honing process 14 Fine honing process 15 Surface corrosion process 16 Honing machine
Claims (1)
ボア表面に、シリコンを突出させる表面処理を施すに先
立って、ボーリング加工とホーニング加工とを行うに際
し、 前記ボア表面に、ラフボーリング加工による荒取りと、
ホーニング工具の軸位置をシリンダブロックに対し所定
ボア中心位置に位置決めしてのラフホーニング加工によ
る中心位置精度出しおよび破砕した初晶シリコンを含む
表層の除去と、ファインホーニング加工による内径寸法
精度出しとを順次に行うことを特徴とする、ハイシリコ
ンアルミボア表面の加工方法。1. Prior to performing a boring process and a honing process on a bore surface of a high silicon aluminum cylinder block prior to performing a surface treatment for projecting silicon, roughing by rough boring process is performed on the bore surface.
The rough honing process is performed by positioning the shaft position of the honing tool at a predetermined bore center position with respect to the cylinder block .
Center position accuracy and including crushed primary silicon
Removal of surface layer and inner diameter by fine honing
A method for processing the surface of a high-silicon aluminum bore, characterized by sequentially performing precision setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19614491A JP3010810B2 (en) | 1991-07-11 | 1991-07-11 | High silicon aluminum bore surface processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19614491A JP3010810B2 (en) | 1991-07-11 | 1991-07-11 | High silicon aluminum bore surface processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0516030A JPH0516030A (en) | 1993-01-26 |
| JP3010810B2 true JP3010810B2 (en) | 2000-02-21 |
Family
ID=16352955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19614491A Expired - Fee Related JP3010810B2 (en) | 1991-07-11 | 1991-07-11 | High silicon aluminum bore surface processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3010810B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302453B (en) * | 2013-06-07 | 2015-06-10 | 浙江坤博机械制造有限公司 | Machining method for valve body of low temperature resistance hard seal check valve |
| DE102014210012A1 (en) * | 2014-05-26 | 2015-11-26 | Elgan-Diamantwerkzeuge Gmbh & Co. Kg | Honing process for fine machining of holes |
| CN111271184A (en) * | 2020-04-02 | 2020-06-12 | 营口福泰科技有限责任公司 | Engine cylinder block cylinder hole wall structure and technological method |
| CN113894514A (en) * | 2021-11-09 | 2022-01-07 | 无锡市聚英机械制造有限公司 | Reduction gearbox machining process |
-
1991
- 1991-07-11 JP JP19614491A patent/JP3010810B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0516030A (en) | 1993-01-26 |
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