CN101733668B - Radial bearing milling tool for supercharger - Google Patents
Radial bearing milling tool for supercharger Download PDFInfo
- Publication number
- CN101733668B CN101733668B CN2008101535338A CN200810153533A CN101733668B CN 101733668 B CN101733668 B CN 101733668B CN 2008101535338 A CN2008101535338 A CN 2008101535338A CN 200810153533 A CN200810153533 A CN 200810153533A CN 101733668 B CN101733668 B CN 101733668B
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- blind hole
- milling tool
- cylinder
- milling
- positioning
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Abstract
The invention discloses a radial bearing milling tool for a supercharger. The right end of a milling tool body is provided with a cylinder having a blind hole. The left end of the cylinder is connected with a positioning cone body, of which the left end is connected with a cylindrical rod body. A detachable flange is arranged on the bottom surface inside the blind hole. A main positioning surface is arranged in the middle of the blind hole, and the right side of the main positioning surface is provided with a part for clamping a workpiece. An auxiliary positioning surface is arranged on an inner side wall in the middle of the part for clamping the workpiece. A pressing plate is arranged outside the right end face of the cylinder, and a nut for the milling tool is arranged outside the pressing plate. The left external surface of the cylindrical rod is provided with screw threads, on which an axial positioning key groove matched with the positioning key is arranged. Seven processing modes of cutting and drilling the radial bearing, milting an oil hole, milling an oil tank, milling an oil wedge, chamfering and burring can be carried out for positioning, pressing, processing and shaping at one time. Therefore, the position error and the geometric accuracy error generated by multi-positioning can be avoided. The tool is not interference during processing; the cooling and chip removal are smooth; and the production efficiency is high, and the product quality is high.
Description
Technical field
The invention belongs to the machined tooling device; Be particularly related to the used milling tool of a kind of turnning and milling journal bearing; Be specially adapted to various footpaths last item and hold car, mill, bore processing simultaneously, belong to relative positional accuracy and the demanding part processing tooling device-radial bearing milling tool for supercharger of geometric accuracy in the machining.
Background technology
Along with the Ministry of Railways adjusts locomotive running speed, locomotive operation safety highlights, for this reliability and security Ministry of Railways to locomotive fittings has proposed requirements at the higher level.Booster is the vitals of locomotive, and it directly influences locomotive running speed and traffic safety.Journal bearing is the very important parts of booster, and the quality of this part quality is related to booster traveling comfort and security.If there is not corresponding rational frock auxiliary; Low and positional precision and all very high journal bearing of geometric accuracy requirement for material hardness; In a single day in being processed into, produce cutting force; Unbalanced and the position error workpiece of clamping force will produce various deformation and positional precision error, and quality can't guarantee.
The rotating speed that general footpath last item holds institute's back shaft is lower, and the radial support equilibrant force is less demanding, as long as reasonable car tool is arranged, mill tool and drilling tool, is equipped with rational cutting tool and has the skilled worker of certain operant level to accomplish.
But for the booster journal bearing; Need turning, hole, mill oilhole, mill oil groove and mill oil film wedge, chamfering and seven kinds of processing modes of deburring; General conventional branch seven procedures are equipped with frock and process respectively; Clamp through per pass operation location, produce the accumulation position error and tighten the various distortion that produce repeatedly, guaranteed not the relative positional accuracy and the geometric accuracy of booster journal bearing.
Summary of the invention
Technical problem to be solved by this invention is: a kind of radial bearing milling tool for supercharger is provided.
Technical scheme of the present invention is:
A kind of radial bearing milling tool for supercharger; It is characterized in that: the concrete right-hand member of turnning and milling is a cylinder that blind hole is arranged on the right side; This cylindrical left end is the orientational cone-shaped surface body that is connected as a single entity with it, is the cylinder barred body that is connected as a single entity at the left end of orientational cone-shaped surface body; On the blind hole inner bottom surface on its described cylinder end face the dismounting flange is housed; In the middle part of blind hole main locating surface is arranged; The right side of main locating surface is the part of card engaging workpiece in the middle of the blind hole, on the madial wall of the centre of the part of card engaging workpiece, the assist location face is arranged; Outside the cylindrical right side of blind hole is arranged, pressure strip being arranged, is that the milling tool rope of hollow is female outside pressure strip, is connected on the screw thread of blind hole cylinder outer surface; On the left part outer surface of described cylindrical rod screw thread is arranged, the axial location keyway that cooperates positioning key is arranged on flank; There is the screw that can cooperate removal handle newel end screw rod centre at the dismounting flange.
Effect of the present invention is:
This radial bearing milling tool for supercharger can be with journal bearing turning, hole, mill oilhole, mill oil groove, mill oil film wedge, chamfering and seven kinds of processing mode one-time positioning of deburring compress and are processed into work.The geometric accuracy error of having avoided repeatedly positional precision accumulated error that the location produced and various distortion to cause.Add tool setting in man-hour tool and have no interference, cooling and chip removal are smooth and easy, and production efficiency is high, and product quality is high.
Characteristics of the present invention: turnning and milling is concrete to be designed to the conical surface with the lathe connected mode and to locate with key, and axial locking, is stablized this Design Orientation precision height.Locate main positioning reference plane diameter greater than the surface to be machined diameter for workpiece, avoid car specifically to the interference of cutter.The assist location face avoids radially that clamping force causes distortion, and its blank design is convenient to boring and is milled oil groove processing.Be uniformly distributed with the design of trisection chip-removal hole and be convenient to scrap, avoid scrap damage surface to be machined with the smooth discharge of cooling fluid.The gathering sill design makes the dismounting flange when the dismounting bearing, remain axial normal pressure, the damage to surface of the work of avoiding torsion to bring to its location end face.
Description of drawings
Fig. 1 is the structure sectional side view of radial bearing milling tool for supercharger
Fig. 2 is the structure A-A profile of radial bearing milling tool for supercharger
Fig. 3 is the structure B-B profile of radial bearing milling tool for supercharger
Fig. 4 is the structure D-D profile of radial bearing milling tool for supercharger
Fig. 5 is to use the front view of the workpiece of radial bearing milling tool for supercharger processing
Fig. 6 is to use the side view of the workpiece of radial bearing milling tool for supercharger processing
Fig. 7 is to use the A ' of workpiece of radial bearing milling tool for supercharger processing to view
Fig. 8 is to use the local B ' zoomed-in view of the workpiece of radial bearing milling tool for supercharger processing
The specific embodiment
Milling tool radial bearing milling tool for supercharger of the present invention has adopted car specifically to locate, and end face pressure strip and locknut compress, and thrust is regulated by torque spanner, the dismounting of dismounting flange.The structure of invention radial bearing milling tool is like Fig. 1,2,3, shown in 4.
Radial bearing milling tool of the present invention by 1, turnning and milling is concrete, 2, the dismounting flange, 3 pressure strips,, 4 milling tool locknuts, 5, removal handle, 6 main locating surfaces, 7, workpiece, 8 assist location faces,, 9,, 10, the end screw rod, 11, locking screw, 12, positioning key forms.
A kind of radial bearing milling tool for supercharger, the right-hand member of turnning and milling concrete 1 are cylinders 1.1 that blind hole is arranged on the right side, and this cylindrical left end is the orientational cone-shaped surface body 1.2 that is connected as a single entity, and are the cylinder barred bodies 1.3 that is connected as a single entity at the left end of orientational cone-shaped surface body; Dismounting flange 2 is housed on the blind hole inner bottom surface on its described cylinder end face; Main locating surface 6 is arranged in the middle part of blind hole; The right side of main locating surface is the part of card engaging workpiece 7 in the middle of the blind hole, on the madial wall of the centre of the part of card engaging workpiece, assist location face 8 is arranged; Outside the cylindrical right side of blind hole is arranged, pressure strip 3 being arranged, is the milling tool rope mother 4 of hollow outside pressure strip, is connected on the screw thread of blind hole cylinder outer surface; On the left part outer surface of described cylindrical rod screw thread 11 is arranged, the axial location keyway that cooperates positioning key 12 is arranged on flank; There is the screw that can cooperate removal handle 5 newel end screw rods 5.1 centre at the dismounting flange.
Compress at this end face pressure strip and locknut, thrust is regulated by torque spanner, the dismounting of dismounting flange.
The dismounting flange is designed to three dismountings of equal part of one-tenth pressure faces on circumference, makes the dismounting isostasy, and its of bonding design prevents to dismantle flange and rotates the damage to surface of the work, and retainer shaft can not influence the discharge of scrap and cooling fluid simultaneously to normal pressure.
Pressure strip milling tool locknut, pressure strip function are to avoid the direct contact workpiece of milling tool locknut, cause locknut and workpiece contact-making surface to damage surface of the work because of being rotated in relatively under the function of friction.
Removal handle: simple in structure easy to use, as long as removal handle is screwed in the dismounting flange screw and can workpiece be taken out.
Processing work is like Fig. 5,6,7, shown in 8:
Use lathe: use T42 high precision numerical control machined into.
Processing technology:
Turnning and milling specifically is installed in the T42 high precision numerical control lathe spindle hole, and the orientational cone-shaped surface that turnning and milling is concrete and the machine tool chief axis conical surface are fitted fully, and positioning spline is joined in the main shaft key cunning, and the principal shaft locking swivel nut is specifically locked turnning and milling.
To dismantle flange and put into structure position shown in Figure 1.
Put into position shown in structure chart cutting the parallel blank of both ends of the surface after the cylindrical fine finishining, the concrete main locating surface of workpiece end face and turnning and milling is closely connected, and excircle of workpiece and assist location face cunning are joined, and slides to join the gap less than the concentricity of workpiece tolerance.
The closely connected workpiece end face of pressure strip is shown in structure chart.The locking of milling tool locknut can be processed (the material difference can be selected corresponding coupling mechanism force).
Processing sequence: half finish turning endoporus, hole, mill oilhole, chamfering, mill oil groove, mill oil film wedge and the deburring of finish turning endoporus.
Accomplish after the processing milling tool locknut unclamped together with pressure strip and take off, screw in removal handle in the dismounting flange screw thread workpiece is ejected.The disassembly method orchid of when time processing, packing into, removal handle unloads cleans out locating surface, and other steps are the same.
This milling tool is used in production reality, processes more than 2000 high-quality high-quality product, and percent defective is less than 0.3%.
Claims (1)
1. radial bearing milling tool for supercharger; It is characterized in that: the concrete right-hand member of turnning and milling is a cylinder that blind hole is arranged on the right side; This cylindrical left end is the orientational cone-shaped surface body that is connected as a single entity with it, is the cylinder barred body that is connected as a single entity with it at the left end of orientational cone-shaped surface body; On the blind hole inner bottom surface on its described cylinder end face the dismounting flange is housed; In the middle part of blind hole main locating surface is arranged; The right side of main locating surface is the part of card engaging workpiece in the middle of the blind hole, on the madial wall of the centre of the part of card engaging workpiece, the assist location face is arranged; Outside the cylindrical right side of blind hole is arranged, pressure strip being arranged, is that the milling tool rope of hollow is female outside pressure strip, is connected on the screw thread of blind hole cylinder outer surface; On the left part outer surface of described cylinder barred body screw thread is arranged, the axial location keyway that cooperates positioning key is arranged on flank; There is the screw that can cooperate removal handle newel end screw rod centre at the dismounting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101535338A CN101733668B (en) | 2008-11-27 | 2008-11-27 | Radial bearing milling tool for supercharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101535338A CN101733668B (en) | 2008-11-27 | 2008-11-27 | Radial bearing milling tool for supercharger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101733668A CN101733668A (en) | 2010-06-16 |
| CN101733668B true CN101733668B (en) | 2012-01-11 |
Family
ID=42457974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101535338A Expired - Fee Related CN101733668B (en) | 2008-11-27 | 2008-11-27 | Radial bearing milling tool for supercharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101733668B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103372754A (en) * | 2012-04-13 | 2013-10-30 | 于强 | Thrust bearing production process |
| CN112846243B (en) * | 2021-01-29 | 2022-10-21 | 怀集业顺科技有限公司 | Multi-positioning composite machining method for engine valve head |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2472866Y (en) * | 2001-03-19 | 2002-01-23 | 陈美青 | Clamp device for regulating arm of sand belt polishing machine |
| EP1275468A1 (en) * | 2000-04-10 | 2003-01-15 | Pascal Kabushiki Kaisha | Tool holder |
| CN2578037Y (en) * | 2002-09-12 | 2003-10-08 | 慈溪市三酉实业有限公司 | Automatic clamp device for machine tool |
-
2008
- 2008-11-27 CN CN2008101535338A patent/CN101733668B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1275468A1 (en) * | 2000-04-10 | 2003-01-15 | Pascal Kabushiki Kaisha | Tool holder |
| CN2472866Y (en) * | 2001-03-19 | 2002-01-23 | 陈美青 | Clamp device for regulating arm of sand belt polishing machine |
| CN2578037Y (en) * | 2002-09-12 | 2003-10-08 | 慈溪市三酉实业有限公司 | Automatic clamp device for machine tool |
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| Publication number | Publication date |
|---|---|
| CN101733668A (en) | 2010-06-16 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20171127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |