CN204673339U - Hole-bored axle from end to end car grinding jig - Google Patents
Hole-bored axle from end to end car grinding jig Download PDFInfo
- Publication number
- CN204673339U CN204673339U CN201520319905.5U CN201520319905U CN204673339U CN 204673339 U CN204673339 U CN 204673339U CN 201520319905 U CN201520319905 U CN 201520319905U CN 204673339 U CN204673339 U CN 204673339U
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- China
- Prior art keywords
- center
- mandrel
- hole
- rolling center
- column structure
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- Expired - Fee Related
Links
- 238000012856 packing Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 abstract description 7
- 239000011265 semifinished product Substances 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 description 4
- 241000723353 Chrysanthemum Species 0.000 description 2
- 235000007516 Chrysanthemum Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
Hole-bored axle from end to end car grinding jig relates to rail vehicle truck axletree processing technique field, it comprises locking nut, packing ring, rolling center, mandrel and drive link, rolling center center is provided with cylindrical hole, mandrel stage casing is column structure, rolling center therewith column structure is that small―gap suture coordinates, cylinder one end is provided with helicitic texture, the cylinder other end is fixed with integrally formed stationary center, drive link is fixed on the side of stationary center one end afterbody of mandrel, and the afterbody center at mandrel two ends is respectively provided with a centre bore; Rolling center, packing ring are enclosed within helicitic texture one end of mandrel successively, and locking nut is connected with helicitic texture.The position of fixture of the present utility model and absorption surface have employed rolling center, coordinated with the small―gap suture of mandrel column structure by the cylindrical hole of rolling center, and rolling center and semi-finished product axletree inner bore chamfering, hollow shaft to be processed can be located by this fixture automatically, and the mode of operation before comparing is more precisely reliable.
Description
Technical field
The utility model relates to rail vehicle truck axletree processing technique field, is specifically related to a kind of hole-bored axle from end to end car grinding jig.
Background technology
Rail vehicle truck axletree processing technology mainly contains the roughing of blank axle, semi-finished product fine finishining and grinding three step, adopts lathe and grinding machine processing respectively, needs to carry out multiple clamping centering.Axletree divides solid axle and hole-bored axle from end to end two kinds usually, and solid axle has standard center openings and axle head three hole in both sides axial end, and hole-bored axle from end to end has axle head three hole in both sides axial end, endoporus opens special angle.Clamping method is, the front and back of solid axle lathe are top by axle center hole dead axle, hole-bored axle from end to end makes the top axletree endoporus dead axle by band special angle of transition in addition, no matter is that solid axle or hole-bored axle from end to end all drive axletree to rotate with machine tool chief axis by the driver plate inserting axle head three hole.
Different from conventional axletree, monorail in Chongqing bogie axle adopts the hole-bored axle from end to end with fine thread, and this type axletree is without axle head three hole and hollow hole aperture is large.Owing to there is no special tooling, the processing of this type axletree can only be fixed with the top clamping of chrysanthemum, centering will be distinguished when turning and grinding, production efficiency is low and high to the technical merit requirement of operator, be easy to the problem occurring that turning and grinding process axle center do not overlap with lathe center, cause axletree eccentric wear even to be scrapped.
Utility model content
The utility model object is from improving the quality of products and saving the angle of manufacturing cost, design and produce a set of special fixture, can simultaneously for finish turning and grinding process, solve the technical problem that axle center does not overlap with lathe center, reduce the centering clamping time, increase work efficiency, reduce the scrappage of product.
The technical scheme that the utility model technical solution problem is taked is as follows:
Hole-bored axle from end to end car grinding jig, it comprises locking nut, packing ring, rolling center, mandrel and drive link, rolling center center is provided with cylindrical hole, mandrel stage casing is column structure, the stage casing column structure of rolling center and mandrel is matched in clearance, and column structure one end of mandrel is provided with helicitic texture, and the column structure other end is fixed with integrally formed stationary center, drive link is fixed on the side of stationary center one end afterbody of mandrel, and the afterbody center at mandrel two ends is respectively provided with a centre bore; Rolling center, packing ring are enclosed within helicitic texture one end of mandrel successively, and locking nut is connected with helicitic texture.
Hole-bored axle from end to end car grinding jig of the present utility model drives rolling center to realize the change of this fixture orientation range by adjusting lock nut, utilize 60 ° of chamferings of rolling center and semi-finished product hole-bored axle from end to end endoporus to locate to clamp, by the standard center openings at adjusting lock nut and mandrel two ends, to make hole-bored axle from end to end clamping on lathe and grinding machine.
The beneficial effects of the utility model are as follows:
1, solve the processing of this vehicle axletree to fix with the top clamping of chrysanthemum, when turning and grinding, difference centering, is easy to the technical problem occurring that turning and grinding process axle center do not overlap with lathe center.
2, the position of this fixture and absorption surface have employed rolling center, coordinated with the small―gap suture of mandrel column structure by the cylindrical hole of rolling center, and rolling center and semi-finished product axletree inner bore chamfering, hollow shaft to be processed can be located by this fixture automatically, substitute and needed artificially holding up or the situation of clamping work pieces in the past in operation, the mode of operation before comparing is more precisely reliable.
Accompanying drawing explanation
Fig. 1 is the application schematic diagram of the utility model hole-bored axle from end to end car grinding jig.
Fig. 2 is the A-A generalized section of Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further details.
As depicted in figs. 1 and 2, hole-bored axle from end to end car grinding jig of the present utility model comprises locking nut 1, packing ring 2, rolling center 3, mandrel 4 and drive link 5, rolling center 3 center is provided with cylindrical hole, clear size of opening is φ 50H7, mandrel 4 stage casing is column structure, be of a size of φ 50g6, wherein rolling center 3 and the column structure of mandrel 4 are that small―gap suture coordinates, column structure one end is provided with helicitic texture 4-1, the column structure other end is fixed with integrally formed stationary center 4-2, drive link 5 is fixed on the side of stationary center 4-2 one end afterbody of mandrel 4, the afterbody center at mandrel 4 two ends is respectively provided with a centre bore 4-3, rolling center 3, packing ring 2 are enclosed within helicitic texture 4-1 one end of mandrel 4 successively, and locking nut 1 is connected with helicitic texture 4-1.
The use procedure of the utility model hole-bored axle from end to end car grinding jig is as follows:
1), by locking nut 1 screw out, pull down packing ring 2 and rolling center 3, hole-bored axle from end to end 6 is enclosed within mandrel 4 along rolling center 3 side;
2), packing ring 2 and rolling center 3 are enclosed within mandrel 4 again, the conical surface of packing ring 2 and rolling center 3 and the hole-bored axle from end to end 6 endoporus conical surface is made to coincide closely connected, then locking nut 1 is tightened, realize location clamping, ensure that hole-bored axle from end to end 6 and this clamp central overlap, shaftless to and longitudinal leap, form an entirety;
3), mandrel 4 liang of end band standard center openings 4-3, to sling fixture and hole-bored axle from end to end 6 with crane, be fixed on lathe with lathe or the top of grinding machine by standard center openings 4-3 clamping, make center and the lathe center superposition of hole-bored axle from end to end 6;
4), turnery processing time, the cylindrical of stationary center 4-2 side of lathe three-claw chuck clamping mandrel 4, chuck drives fixture and hole-bored axle from end to end 6 synchronous rotary to complete turnery processing; During grinding, be connected with drive link 5 by the transmission device on grinding machine, drive fixture and axletree synchronous rotary to complete grinding, because each processing all have followed the technological principle of unifying datum, after multiple clamping processing, connect knife face without vestige, crudy is good;
5), machine after, take off hole-bored axle from end to end 6 from grinding machine, screw out locking nut 1, packing ring 2 and rolling center 3 are taken off, then take out hole-bored axle from end to end 6.
Claims (1)
1. hole-bored axle from end to end car grinding jig, it is characterized in that, this fixture comprises locking nut (1), packing ring (2), rolling center (3), mandrel (4) and drive link (5), rolling center (3) center is provided with cylindrical hole, mandrel (4) stage casing is column structure, rolling center (3) is matched in clearance with the stage casing column structure of mandrel (4), column structure one end is provided with helicitic texture (4-1), the column structure other end is fixed with integrally formed stationary center (4-2), drive link (5) is fixed on the side of stationary center (4-2) one end afterbody of mandrel (4), the afterbody center at mandrel (4) two ends is respectively provided with a centre bore (4-3), rolling center (3), packing ring (2) are enclosed within helicitic texture (4-1) one end of mandrel (4) successively, and locking nut (1) is connected with helicitic texture (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520319905.5U CN204673339U (en) | 2015-05-18 | 2015-05-18 | Hole-bored axle from end to end car grinding jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520319905.5U CN204673339U (en) | 2015-05-18 | 2015-05-18 | Hole-bored axle from end to end car grinding jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204673339U true CN204673339U (en) | 2015-09-30 |
Family
ID=54173062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520319905.5U Expired - Fee Related CN204673339U (en) | 2015-05-18 | 2015-05-18 | Hole-bored axle from end to end car grinding jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204673339U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714529A (en) * | 2021-08-04 | 2021-11-30 | 太原重工股份有限公司 | Multifunctional mandrel with adjustable range |
| CN113910056A (en) * | 2021-11-02 | 2022-01-11 | 上海中船三井造船柴油机有限公司 | Transmission device for grinding piston rod of marine diesel engine |
| CN115972037A (en) * | 2023-01-09 | 2023-04-18 | 八环科技集团股份有限公司 | A processing method for the inner ring raceway of a three-point contact ball bearing |
| WO2025246123A1 (en) * | 2024-05-30 | 2025-12-04 | 中车长春轨道客车股份有限公司 | Centering fixture, machining tool and machining method for hollow shaft |
-
2015
- 2015-05-18 CN CN201520319905.5U patent/CN204673339U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714529A (en) * | 2021-08-04 | 2021-11-30 | 太原重工股份有限公司 | Multifunctional mandrel with adjustable range |
| CN113910056A (en) * | 2021-11-02 | 2022-01-11 | 上海中船三井造船柴油机有限公司 | Transmission device for grinding piston rod of marine diesel engine |
| CN115972037A (en) * | 2023-01-09 | 2023-04-18 | 八环科技集团股份有限公司 | A processing method for the inner ring raceway of a three-point contact ball bearing |
| WO2025246123A1 (en) * | 2024-05-30 | 2025-12-04 | 中车长春轨道客车股份有限公司 | Centering fixture, machining tool and machining method for hollow shaft |
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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: 20150930 Termination date: 20210518 |