CN203695977U - Fixed center positioning device for numerical control underfloor wheel lathe - Google Patents
Fixed center positioning device for numerical control underfloor wheel lathe Download PDFInfo
- Publication number
- CN203695977U CN203695977U CN201420110675.7U CN201420110675U CN203695977U CN 203695977 U CN203695977 U CN 203695977U CN 201420110675 U CN201420110675 U CN 201420110675U CN 203695977 U CN203695977 U CN 203695977U
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- CN
- China
- Prior art keywords
- pedestal
- numerical control
- stationary center
- fixed center
- positioning device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a fixed center positioning device for a numerical control underfloor wheel lathe, which can effectively solve the problem of poor machining quality due to the fact that a machining track cannot be performed according to the set procedure because of leftward and rightward displacement of a wheel set in the machining process of treads of the wheel set. According to the technical scheme, the fixed center positioning device comprises two identical center positioning devices, wherein each center positioning device comprises a fixing frame, a seat and a fixed center; the lower side surface of the fixing frame adopts a rectangular groove with an opening; the seat is T-shaped and is clamped and tightly fixed in the opened rectangular groove of the fixing frame, and a front and back through taper sleeve hole is formed in the center of the seat; a taper sleeve is mounted in the taper sleeve hole in an interference manner, a fixed center jacket is mounted in the taper sleeve, and the cone part at the rear of the fixed center is mounted in the fixed center jacket, so that the assembling structure that the axial direction of the fixed center is perpendicular to the front and back surfaces of the seat is formed. The fixed center positioning device is simple in structure, stable and reliable in performance and convenient to mount, and is innovation of an axial positioning device of the numerical control underfloor wheel lathe.
Description
Technical field
The utility model relates to railway machinery, particularly a kind of numerical control car wheel lathe stationary center positioner that do not fall.
Background technology
Numerical control underfloor wheels lathe, the DLC-25G axle of producing as Qinghai Huading Heavy-duty Machine Tool Co., Ltd. weighs 25 tons of harmonious locomotive numerical control underfloor wheels lathes, processing wheel to time, to adopt traditional axial control wheel horizontal-clamping to take turns right locate mode, due to harmonious locomotive 2, the 5 axle box transverse momentums of taking turns are ± 10mm, thereby cause axial control to be less than wheel to the axial force producing in working angles, in wheel tread process, wheel produces displacement to left and right, machining locus can not be by the program operation of setting, simultaneously, processedly take turns the impact that left and right displacement has also been strengthened to the alternate load to lathe, cause the shear fracture of friction wheel power transmission shaft.By technical Analysis, processed to take turns not carrying out reliable axial restraint location be to cause the underproof main cause of wheel tread crudy.Therefore, the do not fall improvement of car wheel lathe stationary positioned device of numerical control is the problem of needing at present solution badly.
Summary of the invention
For above-mentioned situation, for solving the defect of prior art, the object of the utility model is just to provide a kind of numerical control car wheel lathe stationary center positioner that do not fall, can effectively solve in wheel tread process, wheel produces displacement to left and right, the poor problem of crudy that machining locus can not cause by the program operation of setting.
The technical scheme that the utility model solves is, the top positioner identical by two covers forms, top positioner comprises fixed frame, pedestal and stationary center, fixed frame downside is the rectangular channel shape of opening, pedestal is T-shaped, pedestal is installed in the rectangular channel of fixed frame opening, closely be fixed together, the taper sleeve hole connecting before and after pedestal center has, tapered sleeve interference is contained in taper sleeve hole, stationary center is sleeved on outward in tapered sleeve, the cone part at stationary center rear portion is arranged in stationary center overcoat, form the vertical assembly structure of the axial and pedestal front-back of stationary center.
The utility model modern design, simple in structure, stable and reliable for performance, easy for installation, function meets on-the-spot needs, is the not innovation on wheel drop mechanism bed axial direction positioning device of numerical control.
Accompanying drawing explanation
Fig. 1 is three-dimensional structure diagram of the present utility model.
Fig. 2 is fixed frame three-dimensional structure diagram of the present utility model.
Fig. 3 is pedestal three-dimensional structure diagram of the present utility model.
Fig. 4 is tapered sleeve three-dimensional structure diagram of the present utility model.
Fig. 5 is stationary center structural front view of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.
Provided by Fig. 1-5, the utility model is made up of the identical top positioner of two covers, top positioner comprises fixed frame, pedestal and stationary center, fixed frame 1 downside is the rectangular channel shape of opening, pedestal 2 is T-shaped, pedestal 2 is installed in the rectangular channel of fixed frame 1 opening, closely be fixed together, the taper sleeve hole 6 connecting before and after pedestal 2 centers have, tapered sleeve 3 interference are contained in taper sleeve hole 6, stationary center overcoat 5 is contained in tapered sleeve 3, the cone part at stationary center 4 rear portions is arranged in stationary center overcoat 5, form the vertical assembly structure of axial and pedestal 2 front-backs of stationary center 4.
In order to guarantee result of use, on described fixed frame 1 and pedestal 2, there is the bolt hole matching, fixed frame 1 is fixed together through interior six square bolts of 8 M14 × 25 with pedestal 2.
Described pedestal 2 is fixed together through cone nail with the joint face of tapered sleeve 3.
Described tapered sleeve 3 endoporus adopt No. 6 taperings of Mohs, match with stationary center overcoat 5.
The magnitude of interference between described pedestal 2 and tapered sleeve 3 is 0.029-0.078mm.
The utility model is made up of the identical top positioner of two covers, be installed on respectively the not end face of the axle box clamping device of wheel drop mechanism bed of numerical control, mainly by fixed frame 1, pedestal 2, tapered sleeve 3 and stationary center 4 form, the thick 30mm steel of material selection Q235 of fixed frame, seat material is selected the thick 50mm steel of Q235, No. 45 steel of tapered sleeve material selection, each machined surface all adopts line cutting and milling machine plane machining, reduce to greatest extent the distortion of workpiece in process, fixed frame takes interior six square bolts of 8 M14*25 to be connected with pedestal, tapered sleeve machines rear surface and heat-treats, pedestal coordinates employing interference fit with tapered sleeve, the magnitude of interference is within the scope of 0.029-0.078mm, the joint face that tapered sleeve coordinates with pedestal adopts fixing the loosening of tapered sleeve and pedestal that further prevent of cone nail.Tapered sleeve endoporus adopts Mohs No. 6 taperings, and with the stationary center overcoat work that matches, stationary center is installed on top overcoat endoporus.
Service condition of the present utility model is, by the top positioner of two covers be contained in respectively numerical control not the end face of wheel drop mechanism bed Y-axis case clamping device fixed, adjusting upper-lower position makes top and processedly to take turns right center hole and match, top positioner is clamped and processedly takes turns rightly, and all the other press machine operation rules and operate.
The utility model has solved wheel effectively to the axial displacement in process, the crudy of wheel tread has reached technical requirement, reduce the impact of the alternate load of processing wheel to lathe, take DLC-25G numerical control not wheel drop mechanism bed as example, since coming into operation in May, 2013, do not occur that lathe friction wheel axle cuts off situation, guarantee crudy, stable and reliable for performance, easy for installation, function meets on-the-spot needs, it is the not innovation on wheel drop mechanism bed axial direction positioning device of numerical control, for numerical control from now on not the design of wheel drop mechanism bed axial location practical technical equipment is provided, there is good economic and social benefit.
Claims (5)
1. the numerical control car wheel lathe stationary center positioner that do not fall, the top positioner identical by two covers forms, it is characterized in that, top positioner comprises fixed frame, pedestal and stationary center, fixed frame (1) downside is the rectangular channel shape of opening, pedestal (2) is T-shaped, pedestal (2) is installed in the rectangular channel of fixed frame (1) opening, closely be fixed together, the taper sleeve hole (6) connecting before and after pedestal (2) center has, tapered sleeve (3) interference is contained in taper sleeve hole (6), stationary center overcoat (5) is contained in tapered sleeve (3), the cone part at stationary center (4) rear portion is arranged in stationary center overcoat (5), form the vertical assembly structure of axial and pedestal (2) front-back of stationary center (4).
2. the numerical control according to claim 1 car wheel lathe stationary center positioner that do not fall, it is characterized in that, on described fixed frame (1) and pedestal (2), have the bolt hole matching, fixed frame (1) is fixed together through interior six square bolts of 8 M14 × 25 with pedestal (2).
3. the numerical control according to claim 1 car wheel lathe stationary center positioner that do not fall, is characterized in that, described pedestal (2) is fixed together through cone nail with the joint face of tapered sleeve (3).
4. the numerical control according to claim 1 car wheel lathe stationary center positioner that do not fall, is characterized in that, described tapered sleeve (3) endoporus adopts No. 6 taperings of Mohs, matches with stationary center overcoat (5).
5. the numerical control according to claim 1 car wheel lathe stationary center positioner that do not fall, is characterized in that, the magnitude of interference between described pedestal (2) and tapered sleeve (3) is 0.029-0.078mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110675.7U CN203695977U (en) | 2014-03-12 | 2014-03-12 | Fixed center positioning device for numerical control underfloor wheel lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420110675.7U CN203695977U (en) | 2014-03-12 | 2014-03-12 | Fixed center positioning device for numerical control underfloor wheel lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203695977U true CN203695977U (en) | 2014-07-09 |
Family
ID=51046476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420110675.7U Expired - Fee Related CN203695977U (en) | 2014-03-12 | 2014-03-12 | Fixed center positioning device for numerical control underfloor wheel lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203695977U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117695A (en) * | 2014-07-16 | 2014-10-29 | 宁波夏拓机械装备有限公司 | Offset torsion beam elastic tailstock |
| CN104607670A (en) * | 2015-01-21 | 2015-05-13 | 胡和萍 | Ejector device for center lathe |
-
2014
- 2014-03-12 CN CN201420110675.7U patent/CN203695977U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117695A (en) * | 2014-07-16 | 2014-10-29 | 宁波夏拓机械装备有限公司 | Offset torsion beam elastic tailstock |
| CN104607670A (en) * | 2015-01-21 | 2015-05-13 | 胡和萍 | Ejector device for center lathe |
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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 |
Granted publication date: 20140709 Termination date: 20150312 |
|
| EXPY | Termination of patent right or utility model |