CN101817093A - Tool and method for turning larger-interior and smaller-exterior shaft hole - Google Patents
Tool and method for turning larger-interior and smaller-exterior shaft hole Download PDFInfo
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- CN101817093A CN101817093A CN 201010141236 CN201010141236A CN101817093A CN 101817093 A CN101817093 A CN 101817093A CN 201010141236 CN201010141236 CN 201010141236 CN 201010141236 A CN201010141236 A CN 201010141236A CN 101817093 A CN101817093 A CN 101817093A
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- shaft hole
- knife bar
- axis hole
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Abstract
The invention discloses a tool and a method for turning a larger-interior and smaller-exterior shaft hole. The tool comprises a cylindrical cutter bar (1) and a turning tool (2) which is arranged at the front end of the cutter bar. A horizontal radial pin shaft hole and a vertical radial cutter accommodating groove which passes through the horizontal pin shaft hole are formed on the upper part of the front section of the cutter bar; a pin shaft (4) is arranged inside the pin shaft hole; the turning tool is arranged inside the cutter accommodating groove; the top end of the turning tool is sleeved on the pin shaft; and the diameter (D1) of the cutter bar is smaller than the aperture (Dc) of a rear-section small shaft hole of a larger-interior and smaller-exterior shaft hole workpiece. A front-section small shaft hole and a rear-section small shaft hole are respectively processed from two ends of the workpiece during turning; a section of empty slot of which the aperture is the same as that of the large shaft hole aperture of the workpiece is slotted in the middle section of the workpiece by using a slotting cutter; the turning tool is horizontally reserved in the cutter accommodating groove, and the cutter bar is fed into the empty slot position from the rear-end small shaft hole of the workpiece; and after the turning tool rotates to fall down, cooling liquid is introduced from a drainage groove, and the workpiece and the cutter bar rotate relatively to finish the feed cutting of the large shaft hole section. The tool has the advantages of simple structure, easy operation, and high processing precision.
Description
Technical field
The invention belongs to the Machining Technology field, especially the instrument of processing work axis hole and method.
Background technology
In the prior art, when the processing shaft hole diameter is interior big outer little workpiece, often will process by middle supporting plate feeding behind the cutter clamping.This method is process equipment and complex procedures not only, and when the section of the large aperture of processing work centre, if deep hole processing, because knife bar need reserve the size that cutter stretches out the knife bar part, so the knife bar diameter is much smaller than the axis hole diameter of eating dishes without rice or wine, and because that knife bar hangs is long, make lower the causing of whole turning system rigidity " cutter relieving ", the axis hole of processing becomes the horn mouth shape.So far, never can process the big instrument and the method for little workpiece outward in the shaft hole diameter comparatively reliably.
Summary of the invention
Purpose of the present invention provides the instrument and the processing method thereof of big outer little workpiece in the high shaft hole diameter processed of a kind of simple in structure, easy operating, machining accuracy just in order to solve the long-standing problem of prior art.
The objective of the invention is to be achieved through the following technical solutions.
A kind of instrument of turning larger-interior and smaller-exterior shaft hole, comprise cylinder knife bar and the lathe tool that is installed on the knife bar front end, radial peg axis hole that offers level on knife bar leading portion top and the vertical radially appearance cutter groove that connects with the horizontal pin axis hole, in pin shaft hole, be provided with bearing pin, lathe tool is arranged at and holds in the cutter groove, the top of lathe tool is set on the bearing pin, and the diameter of knife bar is less than the little axis hole of the back segment that has larger-interior and smaller-exterior shaft hole workpiece aperture.
The present invention also is provided with the cylindrical body supports section coaxial with knife bar at the front end of knife bar, and the appearance cutter groove of knife bar extends in the supporting section, and the diameter of supporting section is less than the diameter of knife bar and the little axis hole of the leading portion aperture that has the larger-interior and smaller-exterior shaft hole workpiece.Offer the cooling fluid drainage trough that leads to appearance cutter groove from the knife bar outer end at the knife bar end face, the bottom land of drainage trough is the inclined-plane.Hold the width of the width of cutter groove greater than lathe tool.
A kind of method of turning larger-interior and smaller-exterior shaft hole, its method step is as follows:
A. processing the aperture respectively from the workpiece two ends is D
bLittle axis hole of leading portion and aperture be D
cThe little axis hole of back segment;
B. cut the groove blade row cut out a sector hole in the stage casing of workpiece directly be the big axis hole of workpiece aperture D with common
aDead slot;
C. the lathe tool level is reserved in holding the cutter groove, knife bar is fed to the dead slot position from the little axis hole in the rear end of workpiece, the supporting section of knife bar front end is positioned at the little axis hole of leading portion of workpiece, lathe tool is after gravity effect lower edge bearing pin revolution nature falls, introduce cooling fluid from drainage trough, workpiece and knife bar relatively rotate the feeding cutting of finishing big axis hole section;
D. outwards pull out knife bar, lathe tool forced back towards when entering the rear end little axis hole of workpiece and holds in the cutter groove, finishes withdrawing.
Tool construction of the present invention is simple, and is easy to use, and the cutter that can adapt according to the axis hole manufactured size of reality processing has practicality widely.Method for turning simple possible of the present invention, machining accuracy and working (machining) efficiency are all higher.
Further set forth content of the present invention below in conjunction with Figure of description.
Description of drawings
Fig. 1 is the Workpiece structure schematic diagram that adopts turning processing of the present invention;
Fig. 2 is the structural representation of instrument of the present invention;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the A-A sectional view of Fig. 1.
The specific embodiment
As shown in the figure, the workpiece that adopts instrument of the present invention and method turning processing as shown in Figure 4, the shaft hole diameter of this workpiece is interior big outer little shape, i.e. the axis hole aperture D in workpiece stage casing
aThe little axis hole of leading portion aperture D greater than workpiece
bThe little axis hole of back segment aperture D with workpiece
c, D
bWith D
cMay be identical, also may be different.
Instrument of the present invention such as Fig. 1～shown in Figure 3, comprise cylinder knife bar 1 and the lathe tool 2 that is installed on the knife bar front end, radial peg axis hole that offers level on knife bar leading portion top and the vertical radially appearance cutter groove 3 that connects with the horizontal pin axis hole, in pin shaft hole, be provided with bearing pin 4, lathe tool 2 is arranged at and holds in the cutter groove 3, the top of lathe tool is set on the bearing pin 4, the diameter D of knife bar
1Less than the little axis hole of the back segment that has larger-interior and smaller-exterior shaft hole workpiece aperture D
cFor making the arbor stiffness optimum, knife bar diameter D
1Can be designed into full-size, as selecting D as far as possible
1=D
c-(0.3～0.5) mm.In order to keep the steady of process, can increase the cylindrical body supports section 5 coaxial at the knife bar front end with knife bar, the appearance cutter groove of knife bar extends in the supporting section, the diameter D of supporting section
2Diameter D less than knife bar
1And the little axis hole of the leading portion that has larger-interior and smaller-exterior shaft hole workpiece aperture D
b, generally select D
2=D
c-(0.03～0.06) mm.Offer at the knife bar end face and to lead to the cooling fluid drainage trough 6 that holds the cutter groove from the knife bar outer end, the bottom land of drainage trough is the inclined-plane, cooling fluid can be quickened drainage outward to working position exactly by workpiece, solves cooling problem in the processing with this.The width of the width of cutter groove greater than lathe tool held in design, can effectively solve the chip removal problem in the processing, holds widening the place and can playing the chip pocket effect of cutter groove.
The method step of turning processing axis hole is as follows:
A. earlier processing the aperture respectively from as shown in Figure 4 workpiece two ends is D
bLittle axis hole of leading portion and aperture be D
cThe little axis hole of back segment;
B. cut the groove blade row cut out a sector hole in the stage casing of workpiece directly be the big axis hole of workpiece aperture D with common
aDead slot;
D. outwards pull out knife bar, lathe tool forced back towards when entering the rear end little axis hole of workpiece and holds in the cutter groove, finishes withdrawing.
Instrument of the present invention and method can obviously improve the manufacturing schedule and the quality of product, and have good economic benefits through evidence.
Claims (5)
1. the instrument of a turning larger-interior and smaller-exterior shaft hole, it is characterized in that, comprise cylinder knife bar (1) and be installed on the lathe tool (2) of knife bar front end, radial peg axis hole that offers level on knife bar leading portion top and the vertical radially appearance cutter groove (3) that connects with the horizontal pin axis hole, in pin shaft hole, be provided with bearing pin (4), lathe tool (2) is arranged at and holds in the cutter groove (3), and the top of lathe tool is set on the bearing pin, the diameter (D of knife bar
1) less than the little axis hole of the back segment that has larger-interior and smaller-exterior shaft hole workpiece aperture (D
c).
2. the instrument of a kind of turning larger-interior and smaller-exterior shaft hole according to claim 1 is characterized in that, also is provided with the cylindrical body supports section (5) coaxial with knife bar at the front end of knife bar, and the appearance cutter groove of knife bar extends in the supporting section, the diameter (D of supporting section
2) less than the diameter (D of knife bar
1) and the little axis hole of the leading portion aperture (D that has the larger-interior and smaller-exterior shaft hole workpiece
b).
3. the instrument of a kind of turning larger-interior and smaller-exterior shaft hole according to claim 1 is characterized in that, offers from the knife bar outer end at the knife bar end face and leads to the cooling fluid drainage trough (6) that holds the cutter groove, and the bottom land of drainage trough is the inclined-plane.
4. according to the instrument of claim 1 or 2 or 3 described a kind of turning larger-interior and smaller-exterior shaft holes, it is characterized in that, hold the width of the width of cutter groove greater than lathe tool.
5. the method for a turning larger-interior and smaller-exterior shaft hole is characterized in that, method step is as follows:
A. processing the aperture respectively from the workpiece two ends is D
bLittle axis hole of leading portion and aperture be D
cThe little axis hole of back segment;
B. cut the groove blade row cut out a sector hole in the stage casing of workpiece directly be the big axis hole of workpiece aperture D with common
aDead slot;
C. lathe tool (2) level is reserved in holding cutter groove (3), knife bar (1) is fed to the dead slot position from the little axis hole in the rear end of workpiece, the supporting section of knife bar front end is positioned at the little axis hole of leading portion of workpiece, lathe tool (2) is after gravity effect lower edge bearing pin (4) revolution nature falls, introduce cooling fluid from drainage trough (6), workpiece and knife bar relatively rotate the feeding cutting of finishing big axis hole section;
D. outwards pull out knife bar, lathe tool forced back towards when entering the rear end little axis hole of workpiece and holds in the cutter groove, finishes withdrawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101412369A CN101817093B (en) | 2010-04-08 | 2010-04-08 | Tool and method for turning larger-interior and smaller-exterior shaft hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101412369A CN101817093B (en) | 2010-04-08 | 2010-04-08 | Tool and method for turning larger-interior and smaller-exterior shaft hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101817093A true CN101817093A (en) | 2010-09-01 |
| CN101817093B CN101817093B (en) | 2012-02-29 |
Family
ID=42652450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101412369A Active CN101817093B (en) | 2010-04-08 | 2010-04-08 | Tool and method for turning larger-interior and smaller-exterior shaft hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101817093B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303139A (en) * | 2011-08-24 | 2012-01-04 | 成都科盛石油科技有限公司 | Support structure for long-arm turning tool |
| CN106312107A (en) * | 2016-10-28 | 2017-01-11 | 大理兹飞科技有限公司 | Telescopic tool for machining large-diameter inner hole by numerical control lathe |
| CN112404524A (en) * | 2020-11-26 | 2021-02-26 | 西安北方光电科技防务有限公司 | Clamping device and method for improving machining quality of radial hole of fine shaft part |
| CN112719322A (en) * | 2020-12-25 | 2021-04-30 | 株洲钻石切削刀具股份有限公司 | Cutting tool with tool retracting structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US963596A (en) * | 1909-06-18 | 1910-07-05 | Pennsylvania Steel Company | Bur-remover. |
| US3854839A (en) * | 1973-03-02 | 1974-12-17 | Alco Standard Corp | Bottle boring tool |
| US4105360A (en) * | 1977-06-08 | 1978-08-08 | R. H. Sheppard Co., Inc. | Dual cut boring tool assembly |
| CN1349872A (en) * | 2001-12-11 | 2002-05-22 | 西安石油勘探仪器总厂 | Method and equipment of machining reducing deep hole with small mouth and large middle part |
| CN1850401A (en) * | 2006-05-24 | 2006-10-25 | 梁刚 | Downhole machining cutter |
| CN101837474A (en) * | 2009-03-13 | 2010-09-22 | 乌尔夫·胡勒 | The countersink of pressure medium control |
-
2010
- 2010-04-08 CN CN2010101412369A patent/CN101817093B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US963596A (en) * | 1909-06-18 | 1910-07-05 | Pennsylvania Steel Company | Bur-remover. |
| US3854839A (en) * | 1973-03-02 | 1974-12-17 | Alco Standard Corp | Bottle boring tool |
| US4105360A (en) * | 1977-06-08 | 1978-08-08 | R. H. Sheppard Co., Inc. | Dual cut boring tool assembly |
| CN1349872A (en) * | 2001-12-11 | 2002-05-22 | 西安石油勘探仪器总厂 | Method and equipment of machining reducing deep hole with small mouth and large middle part |
| CN1850401A (en) * | 2006-05-24 | 2006-10-25 | 梁刚 | Downhole machining cutter |
| CN101837474A (en) * | 2009-03-13 | 2010-09-22 | 乌尔夫·胡勒 | The countersink of pressure medium control |
Non-Patent Citations (1)
| Title |
|---|
| 《机械制造》 19870928 廖镜蓉 《可转位扁钻加工内大外小孔》 , 第8期 2 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303139A (en) * | 2011-08-24 | 2012-01-04 | 成都科盛石油科技有限公司 | Support structure for long-arm turning tool |
| CN106312107A (en) * | 2016-10-28 | 2017-01-11 | 大理兹飞科技有限公司 | Telescopic tool for machining large-diameter inner hole by numerical control lathe |
| CN106312107B (en) * | 2016-10-28 | 2018-01-26 | 大理兹飞科技有限公司 | A kind of expandable tool for the processing of numerically controlled lathe larger diameter internal bore |
| CN112404524A (en) * | 2020-11-26 | 2021-02-26 | 西安北方光电科技防务有限公司 | Clamping device and method for improving machining quality of radial hole of fine shaft part |
| CN112719322A (en) * | 2020-12-25 | 2021-04-30 | 株洲钻石切削刀具股份有限公司 | Cutting tool with tool retracting structure |
| CN112719322B (en) * | 2020-12-25 | 2022-04-19 | 株洲钻石切削刀具股份有限公司 | Cutting tool with tool retracting structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101817093B (en) | 2012-02-29 |
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| C14 | Grant of patent or utility model | ||
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| C56 | Change in the name or address of the patentee |
Owner name: HARBIN ELECTRIC MACHINERY COMPANY LIMITED Free format text: FORMER NAME: KUNMING MOTOR FACTORY CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 650100 Kunming, Xishan District, Ma Street, spring road, No. 349 Patentee after: Harbin electric motor factory (Kunming) Co., Ltd. Address before: 650100 Kunming, Xishan District, Yunnan Spring Road, No. 349 Patentee before: Kunming Motor Factory Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 650100 Kunming, Xishan District, Ma Street, spring road, No. 349 Patentee after: Kunming Motor Factory Co Ltd Address before: 650100 Kunming, Xishan District, Ma Street, spring road, No. 349 Patentee before: Harbin electric motor factory (Kunming) Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |