CN205237096U - Process eccentric major axis work piece cutting tool for axle journal - Google Patents
Process eccentric major axis work piece cutting tool for axle journal Download PDFInfo
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- CN205237096U CN205237096U CN201521069762.3U CN201521069762U CN205237096U CN 205237096 U CN205237096 U CN 205237096U CN 201521069762 U CN201521069762 U CN 201521069762U CN 205237096 U CN205237096 U CN 205237096U
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- axle journal
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Abstract
The utility model relates to a process eccentric major axis work piece cutting tool for axle journal, including having the cylindric cutter body that holds by processing axle journal cavity, the hole is cut along the row who upwards is equipped with in week more than two to the cylindric cutter body, and the rear portion of cylindric cutter body has the handle of a knife of being connected with the arbor, and there are two at least blade holders that the axial is stretched out in the anterior equal portion of cylindric cutter body, and each blade passes through the fastener to be installed on each selfcorresponding sword groove, the blade on tool cutting edge angle kappa r 2-4, anterior angle gamma 0 is at 26-29, relief angle alpha 0 10-15. The utility model discloses can improve machining precision and qualification rate to thoroughly solve because eccentric rotation and the size and the great problem of geometric tolerances deviation that lead to processing to be come out during the cutting, be suitable for the car processing and the cutting process of the eccentric work piece axle journal of the higher major axis of required precision.
Description
Technical field
The utility model relates to the eccentric long axis workpiece axle journal cutting tool of a kind of processing, belongs to the eccentric long axis workpiece technology of processingField.
Background technology
Novel modern low-floor railroad vehicle, for the floor of vehicle being reduced to 350mm left and right, need to use axle bridge portionPart. Axle bridge, as the vitals of low floor vehicle bogie, supports the weight of whole car body, and it is only that axle bridge two ends connectVertical wheel is rotated alone and drives Vehicle Driving Cycle under motor drives. For ensureing security and the comfortableness of vehicle operating, to axle bridgeStructural behaviour and all there is higher requirement with assembly precision of mechanism of independent wheel etc. The axle of integral structure as shown in Figure 1Bridge 1 (or being called cambered axle), comprises axle body, is arranged on the perpendicular spindle nose of putting in axle body two ends, the axle journal 1-1 that is positioned at spindle nose outside,And the mount pad at four jiaos of places, axle body bottom, axle journal 1-1 position is connected with mechanism of independent wheel by bearing, and its quality of fit is higher,It is spring that four mount pads are used for installing one, and the screwed hole of spindle nose bottom is for fixing and repair wheel. Axle bridge length reaches conventionallyTo more than 1.5 meters, the diameter of axle size at two ends is mostly more than 100mm, and the margin of tolerance of its processing requires at 0.015mmLeft and right. Due to axle bridge construction out-of-shape, processing get up difficulty larger. Especially rough turn in the employing of machining shaft bridge axle journal position,When finish turning and grinding, because axle bridge is larger-size crankshaft type part, center of gravity is not on center line of journal, to axleWhen the axle journal of bridge both sides carries out turning and grinding, all need the rotation of axle bridge to process, therefore easily produce larger centrifugal force, leadCause journal surface machining accuracy poor, axiality etc. are undesirable. Although can be by the method for counterweight by centrifugal force major partOffset, but because axle bridge construction is irregular structure, be difficult to hold the size and location of counterweight, therefore at the mill of finish turning and postorderCut in processing and need to leave larger allowance, not only cutter consumption is large, and especially stock removal need exceed 1mm conventionally, andReduce working (machining) efficiency. But larger allowance also cannot solve because of the impact of centrifugal force on machining accuracy, also can be because of eccentric rotaryAnd cause the size and the form and position tolerance deviation that process larger, make the qualification rate of machinofacture not high.
Summary of the invention
The purpose of this utility model is to provide one and can reduces long axis workpiece bias and cause axle journal machining accuracy not high, can improveThe eccentric long axis workpiece axle journal of the processing cutting tool of machining accuracy and qualification rate.
The utility model is that the technical scheme achieving the above object is: the eccentric long axis workpiece axle journal cutting tool of a kind of processing,It is characterized in that: comprise and have the tubular cutter hub that holds processed axle journal cavity, tubular cutter hub was upwards provided with more than two along weekRow cut hole, the rear portion of tubular cutter hub has the handle of a knife being connected with cutter shaft, the anterior all portions of tubular cutter hub have at least two axially to stretchThe tool rest going out, each blade is arranged on separately on corresponding cutter groove by securing member, the tool cutting edge angle Κ r on described blade 2 °～4 °, anterior angle γ 0 is at 26 °～29 °, and relief angle α 0 is at 10 °～15 °.
The utility model cutting tool has adopted tubular cutter hub, holds processed axle journal cavity because tubular cutter hub has, and is addingCan, by tubular cutter hub in the rotation of workpiece spindle neck position periphery, cut axle journal cylindrical by the blade of tubular cutter hub front portion man-hourCut to given size, because workpiece is without rotation, in the time of cutting, make tubular cutter hub be enclosed within gradually axle journal place, make cutting tool toolThere is good intensity, can ensure to add the tool rest jitter amplitude minimum of front portion in man-hour, then ensure the machining accuracy at axle journal position,Make form and position tolerance and the precision at journal surface roughness and shaft neck position highly stable, can improve the qualification rate of product. ThisUtility model can make blade cutting into position sharper by specific tool cutting edge angle Κ r, ensures that cutting output is few, to reach simultaneouslyHigher surface accuracy, can provide less cutting force by larger anterior angle, and vibration while reducing to cut, in addition byWhen large relief angle can be avoided feed, withdrawing, after cutter, knife face scratches part to be processed, adds roughness in man-hour, cylinder therefore can improveDegree, circle are beated, the precision such as axiality, can thoroughly solve due to cutting time because eccentric rotary causes the size processingAnd the larger problem of form and position tolerance deviation, the Vehicle Processing and the grinding that are suitable for the higher major axis eccentric work piece axle journal of required precision addWork.
Brief description of the drawings
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is the structural representation of existing integral structure axle bridge.
Fig. 2 is the structural representation of the utility model cutting tool.
Fig. 3 is the structural representation of the utility model blade.
Fig. 4 is the O-O sectional structure schematic diagram of Fig. 3.
Fig. 5 is O '-O ' sectional structure schematic diagram of Fig. 3.
Fig. 6 is the structural representation of the eccentric long axis workpiece axle journal of the utility model cutting tool processing.
Wherein: 1-axle bridge, 1-1-axle journal, 2-tool rest, 2-1-cutter groove, 2-2-spacing preiection, 3-tubular cutter hub,4-row cuts hole, 5-handle of a knife, 6-blade.
Detailed description of the invention
See shown in Fig. 2,4, the utility model is processed eccentric long axis workpiece axle journal cutting tool, comprises for having and holdingThe tubular cutter hub 3 of processed axle journal cavity, the cavity length of tubular cutter hub 3 is greater than processed axle journal length, tubular cutter hub 3Cut hole 4 along being upwards provided with plural row week, meeting under the intensity of tubular cutter hub 3, can be provided with multiple rows and cut hole 4,Cut hole 4 by row and discharge in time iron filings, prevent that iron filings from piling up and affect cutter and enter in cutter. As shown in Figure 2, this realityThere is the handle of a knife 5 being connected with cutter shaft with the rear portion of Novel barrel-type cutter hub 3, be connected on the cutter shaft of lathe machine by handle of a knife 5Cutter shaft on bed drives handle of a knife 5 to rotate workpiece is cut, and handle of a knife 5 of the present utility model can adopt conventional taper handle of a knifeOr the handle of a knife of keyway arrangements, can change according to lathe model and interface.
As shown in Figure 2, there are at least two tool rests that axially stretch out 2, tubular cutter in the anterior all portions of the utility model tubular cutter hub 3Body 3 front end faces are provided with corresponding arc notch and form the tool rest 2 axially stretching out, as shown in Figure 2, and tubular cutter hub 3 front portionsHave three tool rests 2, make tubular cutter hub 3 structural stress little, and have good intensity, each blade 6 is pacified by securing memberBe contained in corresponding cutter groove 2-1 separately and above, in the cutter groove 2-1 of these tool rest 2 front portions, be provided with spacing preiection 2-2, play projection by limit2-2 blade 6 is carried out spacing, by changing the installation site of blade 6, cutting tool can be rotated at both direction respectivelyAnd cutting workpiece makes cutting tool have good versatility. See shown in Fig. 3～5, the master on the utility model blade 6 is inclined to one sideAngle Κ r is at 2 °～4 °, anterior angle γ 0 at 26 °～29 °, and relief angle α 0 is at 10 °～15 °, preferably of the present utility modelTool cutting edge angle Κ r on blade 6 is at 2.5 °～3.5 °, and anterior angle γ 0 is at 26 °～29 °, and relief angle α 0 is 10 °～15°. Can make blade 6 cutting into position sharper by specific tool cutting edge angle Κ r, ensure that cutting output is few simultaneously, pass through bladeOn 6, larger anterior angle to be so that less cutting force to be provided, and vibration while reducing to cut, larger relief angle in addition, can avoid feed,When withdrawing, after cutter, knife face scratches part to be processed, therefore can further improve add workpiece surface roughness in man-hour, cylindricity,The precision such as circle is beated, axiality.
As shown in Figure 6, while adopting cutting tool of the present utility model to carry out machining to axle journal, the handle of a knife 5 of cutting toolBe arranged on the cutter shaft of lathe, drive tubular cutter hub 3 rotate and enter, make the blade 6 of tubular cutter hub 3 front portions cut axle journal,Cut hole 4 by row and discharge and enter iron filings in tubular cutter hub 3, the axle journal position tube shape cutter hub 3 then processing wraps, in the time that tubular cutter hub 3 enters to walk to reach the processing length of axle journal, cutting tool exits along original route, finishes machining.
Claims (5)
1. the eccentric long axis workpiece axle journal cutting tool of processing, is characterized in that: comprise having and hold processed axle journalThe tubular cutter hub (3) of cavity, tubular cutter hub (3) is cut hole (4), tubular cutter hub (3) along being upwards provided with plural row weekRear portion there is the handle of a knife (5) being connected with cutter shaft, there are at least two tool rests that axially stretch out in the anterior all portions of tubular cutter hub (3)(2), each blade (6) is arranged on corresponding cutter groove (2-1) separately by securing member and goes up, the tool cutting edge angle on described blade (6)Κ r is at 2 °～4 °, and anterior angle γ 0 is at 26 °～29 °, and relief angle α 0 is at 10 °～15 °.
2. the eccentric long axis workpiece axle journal of processing according to claim 1 cutting tool, is characterized in that: described cutterTool cutting edge angle Κ r on sheet (6) is at 2.5 °～3.5 °, anterior angle γ 0 at 26 °～29 ° and relief angle α 0 10 °～15°。
3. the eccentric long axis workpiece axle journal of processing according to claim 1 cutting tool, is characterized in that: describedThe cavity length of tubular cutter hub (3) is greater than processed axle journal length.
4. the eccentric long axis workpiece axle journal of processing according to claim 1 cutting tool, is characterized in that: describedTubular cutter hub (3) front end face is provided with corresponding arc notch and forms the tool rest (2) axially stretching out.
5. the eccentric long axis workpiece axle journal of processing according to claim 1 cutting tool, is characterized in that: described cutterIn the cutter groove (2-1) of seat (2) front portion, be provided with spacing preiection (2-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521069762.3U CN205237096U (en) | 2015-12-21 | 2015-12-21 | Process eccentric major axis work piece cutting tool for axle journal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521069762.3U CN205237096U (en) | 2015-12-21 | 2015-12-21 | Process eccentric major axis work piece cutting tool for axle journal |
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| Publication Number | Publication Date |
|---|---|
| CN205237096U true CN205237096U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521069762.3U Active CN205237096U (en) | 2015-12-21 | 2015-12-21 | Process eccentric major axis work piece cutting tool for axle journal |
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| CN (1) | CN205237096U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113547144A (en) * | 2021-07-23 | 2021-10-26 | 南京晨光集团有限责任公司 | Method for machining cantilever shaft with large-size irregular appearance based on boring |
-
2015
- 2015-12-21 CN CN201521069762.3U patent/CN205237096U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113547144A (en) * | 2021-07-23 | 2021-10-26 | 南京晨光集团有限责任公司 | Method for machining cantilever shaft with large-size irregular appearance based on boring |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Xue Jia Zhen 213125 north of Jiangsu Province, Changzhou City Shun Road No. 19 Patentee after: CRRC CHANGZHOU TECH-MARK INDUSTRIAL CO., LTD. Address before: Xue Jia Zhen 213125 north of Jiangsu Province, Changzhou City Shun Road No. 19 Patentee before: CSR Changzhou Tech-Mark Industrial Co., Ltd. |