CN203109265U - Crankshaft journal corner-rounding turning tool - Google Patents
Crankshaft journal corner-rounding turning tool Download PDFInfo
- Publication number
- CN203109265U CN203109265U CN 201320130552 CN201320130552U CN203109265U CN 203109265 U CN203109265 U CN 203109265U CN 201320130552 CN201320130552 CN 201320130552 CN 201320130552 U CN201320130552 U CN 201320130552U CN 203109265 U CN203109265 U CN 203109265U
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- CN
- China
- Prior art keywords
- tool
- cutter
- fillet
- crankshaft journal
- cutter hub
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Abstract
The utility model relates to a crankshaft journal corner-rounding turning tool which comprises a tool body, rounded corner forming blades and a tool bar arranged on a tool platform of a machine tool. A dovetail groove is formed in the tool bar. Four corners at the front end face of the tool body are respectively provided with a tool groove. Four rounded corner forming blades are respectively arranged in the tool grooves and are tightly pressed and fixed through screws. A dovetail protrusion is arranged on the rear portion of the tool body. The tool body is matched with the dovetail groove of the tool bar through the dovetail protrusion. The tool body is inserted into the tool bar and is tightly pressed and fixed through a pressing mechanism on the tool bar. In the working process, the two rounded corner forming blades on the upper portion are utilized to achieve turning of rounded corners of a crankshaft journal. When the two rounded corner forming blades on the upper portion are worn down, the tool body can be rotated by 180 degrees, operators can continue using the reminding two unused rounded corner forming blades, and consequently production efficiency is improved. The vehicle crankshaft journal corner-rounding turning tool is simple and reasonable in structure, convenient to operate and use, and high in tool replacing efficiency and assembling efficiency, and is an ideal tool for turning the rounded corners of the crankshaft journal.
Description
Technical field
The utility model relates to turning main bearing journal cutter, specifically a kind of car crankshaft journal fillet cutter.
Background technology
We know, being installed on engine crankshaft processes through multiple working procedure, wherein rough turn axle journal special plane turning commonly used, because each axle journal two ends has fillet, be with two fillet forming-tools during turning, be installed in the anterior dovetail both sides of protruding of knife bar, the middle part of protrusion is with a screw in compression briquetting, and then compresses two fillet forming-tools.Two screws and cutter bottom surface location is housed respectively on the cutter platform adjusts height, make the tough centering crankshaft journal of fillet forming-tool longitudinal centre line, in order to process.Two fillet forming-tools are directly installed on the knife bar in the above-mentioned prior art, and knife bar is installed on the lathe cutter platform.Owing to frequently change factors such as product and tool wear, need frequent tool changing.Tool changing is not only time-consuming, and incurs loss through delay and produce.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of simple and reasonable for structure, easy for operation, and four blades are housed, the car crankshaft journal fillet cutter that the tool changing efficiency of assembling is high.
The technical scheme in the invention for solving the above technical problem is: a kind of car crankshaft journal fillet cutter, it is characterized in that: it includes cutter hub, fillet shaping blade and is installed on knife bar on the lathe cutter platform, described knife bar is provided with dovetail groove, described cutter hub front end face is respectively equipped with a cutter groove on four angles, four fillet shaping blades are installed in respectively in the cutter groove, fix by screw in compression, the cutter hub rear portion is provided with the swallow-tail form projection; Cutter hub cooperates with the knife bar dovetail groove by swallow-tail form projection, and the insertion knife bar also is fixed by the hold-down mechanism on the knife bar.
Described screw passes the counterbore that fillet shaping blade is provided with, and cooperates with the screw that cutter hub is provided with, and screw is screwed into cutter hub, is fixed fillet shaping blade.
Described cutter hub bottom also is provided with the cramp bar of an adjustment height, on the lathe cutter platform that support bar is installed.Cutter hub contacts with the cramp bar upper surface, and cramp bar plays the aiding support location, makes cutter hub stably be in the operating position of car crankshaft journal fillet.
Four fillet shaping blades are installed on four angles of cutter hub front end face described in the utility model, and four are symmetrically distributed fillet shaping blade up and down.During work, start lathe bent axle is rotated, the knife bar that is installed on the lathe cutter platform drives whole tool feeding, realizes turning to the crankshaft journal fillet by two fillet shaping blades on top.Behind two fillet forming-tool pad wears on top, cutter hub can be unloaded, rotate 180 ° up and down, continue to use two remaining intact fillet shaping blades to carry out turnery.Improved production efficiency like this, greatly.Against existing technologies, the utility model is simple and reasonable for structure, and is easy for operation, and four blades are housed, and tool changing efficiency of assembling height is a kind of desirable car crankshaft journal fillet cutter.
Description of drawings
The utility model will be further described below in conjunction with accompanying drawing.
Fig. 1 is that assembly structure master of the present utility model looks schematic diagram.
Fig. 2 is that schematic diagram is looked on an assembly structure of the present utility model left side.
Fig. 3 is assembly structure schematic top plan view of the present utility model.
1. fillet shaping blades among the figure, 2. screw, 3. cutter hub, 4. knife bar, 5. cramp bar, 6. bent axle.
The specific embodiment
From Fig. 1, Fig. 2 and Fig. 3 as can be seen, a kind of car crankshaft journal fillet cutter, it includes cutter hub 3, fillet shaping blade 1, knife bar 4, cramp bar 5 etc.Described knife bar 4 is installed on the lathe cutter platform, and knife bar 4 is provided with dovetail groove.Also be provided with the cutter hub mechanism that is fixed and clamped on the knife bar 4.
Described cutter hub 3 front end faces are respectively equipped with a cutter groove at an angle on four angles, and four are installed in fillet shaping blade 1 respectively in the cutter groove, are fixed by screw 2.Specifically be that fillet shaping blade 1 is provided with counterbore, cutter hub 3 upper knife groove inboards are provided with screw, and described screw 2 passes the counterbore on the fillet shaping blade 1, cooperate with screw on the cutter hub 3, and screw 2 is screwed into cutter hub 3, is fixed fillet shaping blade 1.
Described cutter hub 3 rear portions are provided with the swallow-tail form projection; Cutter hub 3 cooperates with dovetail groove on the knife bar 4 by the swallow-tail form projection, and the insertion knife bar also is fixed by the hold-down mechanism on the knife bar.The composition structure of this hold-down mechanism is identical with prior art, repeats no more.
Described cutter hub 3 bottoms also are provided with the cramp bar 5 of an adjustment height, on the lathe cutter platform that support bar 5 is installed.Cutter hub 3 contacts with cramp bar 5 upper surfaces, and cramp bar 5 plays the aiding support location, makes cutter hub 3 stably be in the operating position of car crankshaft journal fillet.
Four fillet shaping blades are installed on four angles of cutter hub front end face described in the utility model, and four are symmetrically distributed fillet shaping blade up and down.During work, start lathe bent axle 6 is rotated, the knife bar that is installed on the lathe cutter platform drives whole tool feeding, realizes turning to bent axle 6 axle journal fillets by two fillet shaping blades on top.Behind two fillet forming-tool pad wears on top, cutter hub can be unloaded, rotate 180 ° up and down, continue to use two remaining intact fillet shaping blades to carry out turnery.Improved production efficiency like this, greatly.
The utility model is simple and reasonable for structure, and is easy for operation, and four blades are housed, and tool changing efficiency of assembling height is a kind of desirable car crankshaft journal fillet cutter.
Claims (3)
1. car crankshaft journal fillet cutter, it is characterized in that: it includes cutter hub, fillet shaping blade and is installed on knife bar on the lathe cutter platform, described knife bar is provided with dovetail groove, described cutter hub front end face is respectively equipped with a cutter groove on four angles, four fillet shaping blades are installed in respectively in the cutter groove, fix by screw in compression, the cutter hub rear portion is provided with the swallow-tail form projection; Cutter hub cooperates with the knife bar dovetail groove by swallow-tail form projection, and the insertion knife bar also is fixed by the hold-down mechanism on the knife bar.
2. car crankshaft journal fillet cutter according to claim 1, it is characterized in that: described screw passes the counterbore that fillet shaping blade is provided with, and cooperates with the screw that cutter hub is provided with, and screw is screwed into cutter hub, is fixed fillet shaping blade.
3. car crankshaft journal fillet cutter according to claim 1, it is characterized in that: described cutter hub bottom also is provided with the cramp bar of an adjustment height, on the lathe cutter platform that support bar is installed.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320130552 CN203109265U (en) | 2013-03-21 | 2013-03-21 | Crankshaft journal corner-rounding turning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320130552 CN203109265U (en) | 2013-03-21 | 2013-03-21 | Crankshaft journal corner-rounding turning tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203109265U true CN203109265U (en) | 2013-08-07 |
Family
ID=48889643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320130552 Expired - Fee Related CN203109265U (en) | 2013-03-21 | 2013-03-21 | Crankshaft journal corner-rounding turning tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203109265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128323A (en) * | 2013-03-21 | 2013-06-05 | 天润曲轴股份有限公司 | Vehicle crankshaft journal angle rounding tool |
-
2013
- 2013-03-21 CN CN 201320130552 patent/CN203109265U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128323A (en) * | 2013-03-21 | 2013-06-05 | 天润曲轴股份有限公司 | Vehicle crankshaft journal angle rounding tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20160321 |