CN107953143A - A kind of low-floor railroad vehicle processes weight fixture with axis bridge - Google Patents
A kind of low-floor railroad vehicle processes weight fixture with axis bridge Download PDFInfo
- Publication number
- CN107953143A CN107953143A CN201711186537.1A CN201711186537A CN107953143A CN 107953143 A CN107953143 A CN 107953143A CN 201711186537 A CN201711186537 A CN 201711186537A CN 107953143 A CN107953143 A CN 107953143A
- Authority
- CN
- China
- Prior art keywords
- connecting hole
- axis bridge
- low
- railroad vehicle
- contiguous block
- Prior art date
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/001—Arrangements compensating weight or flexion on parts of the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/007—Weight compensation; Temperature compensation; Vibration damping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The present invention relates to a kind of low-floor railroad vehicle axis bridge to process weight fixture, it includes counter-balanced carriage (2) and counterweight support (3), counter-balanced carriage (2) includes two support plates (2.1) in left and right, support plate (2.1) front and rear sides are both provided with connecting plate (2.3), the first connecting hole (2.6) and the second connecting hole (2.7) are provided with the connecting plate (2.3), the counterweight support (3) is arranged in parallel with two cross bars (3.1) before and after including, vertical pole (3.2) is provided between in the middle part of former and later two described cross bars (3.1), cross bar (3.1) left and right ends are both provided with contiguous block (3.3), contiguous block (3.3) top surface is provided with the 3rd connecting hole (3.4) and the 4th connecting hole (3.5).A kind of low-floor railroad vehicle of the present invention processes weight fixture with axis bridge, it avoids the rigid reason due to eccentric rotary and axis bridge and causes the size of axle journal and the deviation of geometric tolerance, solves the problems, such as to be most difficult to solve in the processing of axis bridge.
Description
Technical field
The present invention relates to a kind of low-floor railroad vehicle axis bridge to process weight fixture, belongs to technical field of rail traffic.
Background technology
New modern low-floor railroad vehicle in order to by the floor of vehicle reduce, it is necessary to use axis bridge component.Axis bridge
As the important component of low floor vehicle bogie, the whole car body weight of eyelid retractor, the mechanism of independent wheel of axis bridge both ends connection is in motor
Rotated alone under driving and drive vehicle to travel.To ensure the security and comfort of vehicle operation, to the structural behaviour of axis bridge
And there is higher requirement with the assembly precision of mechanism of independent wheel etc..It is integral shaft bridge shown in Fig. 2, axis bridge planform complexity is not
Rule, difficulty of processing is larger, in processing axis bridge axle neck position using rough turn, smart car, finish-milling, grinding technique, due to axis bridge
For larger-size crankshaft type part, center of gravity is not on center line of journal, when the axle journal to axis bridge both sides carries out turning grinding
Need axis bridge to rotate and process, therefore easily produce larger centrifugal force, it is necessary to overcome axis bridge because of the eccentric original bad greatly with rigidity
Caused by the problem of journal size, surface quality, bad geometric tolerance.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of low-floor railroad vehicle axis for the above-mentioned prior art
Bridge processes weight fixture, it avoids the rigid reason due to eccentric rotary and axis bridge and causes the size and geometric tolerance of axle journal
Deviation, solve the problems, such as axis bridge processing in be most difficult to solve.
Technical solution is used by the present invention solves the above problems：A kind of low-floor railroad vehicle processes counterweight with axis bridge
Frock,：It includes counter-balanced carriage and counterweight support, and the counter-balanced carriage is fixedly installed in counterweight support, and counter-balanced carriage includes left and right two
A support plate, in the middle part of two support plates in the left and right between linking arm be connected, the support plate front and rear sides are both provided with company
Fishplate bar, is provided with the first connecting hole and the second connecting hole on the connecting plate, first connecting hole is located in the second connecting hole
Side, the counterweight support are arranged in parallel with two cross bars, vertical pole are provided between former and later two cross bars middle part before and after including,
The cross bar left and right ends are both provided with contiguous block, and the contiguous block top surface is provided with the 3rd connecting hole and the 4th connecting hole, institute
State that the position of the 3rd connecting hole is corresponding with the position of the first connecting hole, position and the second connecting hole of the 4th connecting hole
Position is corresponding, and the connecting plate of counter-balanced carriage is held on the contiguous block of counterweight support, the first connecting hole and second on connecting plate
It is connected between connecting hole and the 3rd connecting hole and the 4th connecting hole on contiguous block by screw.
Locating piece is provided between the support plate bottom and connecting plate bottom.
Hole for hoist is provided with the support plate.
The contiguous block bottom surface is provided with the 5th connecting hole.
Compared with prior art, the advantage of the invention is that：
A kind of low-floor railroad vehicle of the present invention processes weight fixture with axis bridge, it is avoided due to eccentric rotary and axis bridge
Rigid reason and cause the size of axle journal and the deviation of geometric tolerance, solve the problems, such as axis bridge processing in be most difficult to solve.
Brief description of the drawings
Fig. 1 is the use state diagram that a kind of low-floor railroad vehicle axis bridge of the present invention processes weight fixture.
Fig. 2 is the structure diagram of Fig. 1 axis bridges.
Fig. 3 is the structure diagram of counter-balanced carriage in Fig. 1.
Fig. 4 is the structure diagram of counterweight support in Fig. 1.
Wherein：
Axis bridge 1
Axle journal 1.1
Lifting eye 1.2
Pick up the ears 1.3
Centre bore 1.4
Pick up the ears upper plane 1.5
Intermediate beam 1.6
Baseplane 1.7
Upper plane 1.8
Open slot 1.9
Keyway 1.10
End-face hole 1.11
Mounting hole 1.12
Connecting portion 1.13
Counter-balanced carriage 2
Support plate 2.1
Linking arm 2.2
Connecting plate 2.3
Locating piece 2.4
Hole for hoist 2.5
First connecting hole 2.6
Second connecting hole 2.7
Counterweight support 3
Cross bar 3.1
Vertical pole 3.2
Contiguous block 3.3
3rd connecting hole 3.4
4th connecting hole 3.5
5th connecting hole 3.6.
Embodiment
The present invention is described in further detail below in conjunction with attached drawing embodiment.
As shown in Figure 1 to 4, the mechanical processing technique of a kind of low-floor railroad vehicle axis bridge in the present embodiment, it
Comprise the following steps：
Step 1: centering：An axis bridge strand workpiece is taken, workpiece is positioned on gantry machining center, passes through V-block
Rest against two side shaft journals, four underlays of picking up the ears are ascended a height block, are straightened intermediate beam, milling baseplane, end face milling, then with baseplane and centre
Centering on the basis of beam, ensures that both ends centre bore must be concentric；
It is Step 2: rough turn：Workpiece fills weight fixture, upper center lathe, two top clamping workpieces, jaws clamp, to work
Part axle journal is cylindrical to be processed, and unilateral made allowance 2mm, pays attention to suitably subtracting clump weight in process, will match somebody with somebody heavy industry after rough turn
Assembly and disassembly remove；
Step 3: ageing treatment：Destressing processing is carried out to axis bridge semi-finished product；Axis bridge semi-finished product are added using batch-type furnace
Heat when insulation 6 is small, then naturally cools to room temperature to 200 DEG C, and the machining that axis bridge semi-finished product are reduced by this treatment process becomes
Shape, can guarantee that the dimensional accuracy of following process and positional precision are constant；
Step 4: rough mill：Workpiece after ageing treatment is positioned on gantry machining center, both sides are rested against by V-block
Axle journal, four underlays of picking up the ears are ascended a height block, smooth baseplane, in overall length point；Finish-milling baseplane, finish-milling shape, rough mills four and picks up the ears
Lower plane made allowance 1mm, rough mills centre bore to ￠ 57；Workpiece turn-over, using baseplane to rest against, plane in milling, bores lifting eye and attacks
Tooth, rough mills four upper plane made allowance 2mm that pick up the ears, and bores mounting hole tapping；
Step 5: smart car：Workpiece fills weight fixture, and upper numerically controlled lathe, locks mounting screw everywhere, one top clamping of a folder
Workpiece, upper centre frame, to be axial reference center in two distances picked up the ears point, planar end surface, centering again, outside smart car axle journal
Circle made allowance 0.6；Again one top clamping workpiece of a folder, turns around to process by this again, weight fixture is removed release stress after smart car；
Step 6：Roughly grind cylindrical：Weight fixture is installed on workpiece, it is cylindrical using the accurate cylindrical grinder grinding diameter of axle, stay
Refine surplus 0.3mm；The two tops cylindrical root of clamping trial cut, checking can continue to process within cylindrical bounce 0.02；
Step 7：Finish-milling：Using horizontal Machining centers, rested against with baseplane block of ascending a height, be straightened workpiece axle journal AB, using AB as
Benchmark, finish-milling keyway, finish-milling go out inner face open slot, drill out end-face hole and tapping；Rotary table, processes the other end；
Step 8：Right boring hole：Using gantry machining center, rested against with baseplane block of ascending a height, be straightened workpiece axle journal AB, finish-milling
Each plane, right boring hole；
Step 9: fine cylindrical：Workpiece fills weight fixture, and cylindrical to the required ruler of axle journal is ground using accurate cylindrical grinder
It is very little；Two top clampings, workpiece do not have obvious weightlessness under two dome-shaped states, and the cylindrical root of trial cut, checks cylindrical bounce
It can continue to process within 0.015；Such as beat overproof, it is necessary to reinstall weight fixture.
Weight fixture includes counter-balanced carriage 2 and counterweight support 3, and the counter-balanced carriage 2 is arranged in counterweight support 3；
The counter-balanced carriage 2 includes two support plates 2.1 in left and right, linking arm between two support plates in the left and right, 2.1 middle part
2.2 are connected, and 2.1 front and rear sides of support plate are both provided with connecting plate 2.3,2.1 bottom of support plate and connecting plate 2.3
Locating piece 2.4 is provided between bottom, hole for hoist 2.5 is provided with the support plate 2.1, is provided with the connecting plate 2.3
First connecting hole 2.6 and the second connecting hole 2.7, first connecting hole 2.6 are located at the inner side of the second connecting hole 2.7；
The counterweight support 3 is arranged in parallel with two cross bars 3.1 before and after including, former and later two 3.1 middle parts of cross bar
Between be provided with vertical pole 3.2,3.1 left and right ends of cross bar are both provided with contiguous block 3.3, and 3.3 top surface of contiguous block is provided with
3rd connecting hole 3.4 and the 4th connecting hole 3.5, the position of the 3rd connecting hole 3.4 are opposite with the position of the first connecting hole 2.6
Should, the position of the 4th connecting hole 3.5 is corresponding with the position of the second connecting hole 2.7；
The axis bridge 1 includes two connecting portions 1.13 in left and right, and left and right is connected between connecting the inner side of a connecting portion 1.13
Intermediate beam 1.6, the outside of connecting portion 1.13 are provided with axle journal 1.1, and 1.13 front and rear sides of connecting portion, which are provided with, picks up the ears
1.3, the top of the connecting portion 1.13 is provided with lifting eye 1.2, described to pick up the ears to be provided with centre bore 1.4, the centre bore on 1.3
1.4 outsides are provided with mounting hole 1.12；
Horizontally disposed on the axle journal 1.1 to have keyway 1.10,1.1 outer end of axle journal is provided with end-face hole
1.11；
The outside of connecting portion 1.13 is provided with open slot 1.9；
3.3 bottom surface of contiguous block is provided with the 5th connecting hole 3.6, position and the axis bridge of the 5th connecting hole 3.6
1.12 position of mounting hole is corresponding；
When weight fixture is installed, counterweight support 3 is positioned on axis bridge 1, the contiguous block 3.3 of counterweight support 3 is held on axis
Bridge 1 is picked up the ears on 1.3, passes through screw between the 5th connecting hole 3.6 on contiguous block 3.3 and the mounting hole 1.12 picked up the ears on 1.3
It is connected；Then counter-balanced carriage 2 is positioned in counterweight support 3, the connecting plate 2.1 of counter-balanced carriage 2 is held on the connection of counterweight support 3
On block 3.3, the first connecting hole 2.6 and the second connecting hole 2.7 on connecting plate 2.1 and the 3rd connecting hole 3.4 on contiguous block 3.3
And the 4th be connected by screw between connecting hole 3.5, the hole for hoist 2.5 in support plate 2.1 and the lifting on connecting portion 1.13
It is connected between hole 1.2 by screw.
Counter-balanced carriage 2 using and workpiece contoured design, counterweight support is used for strengthening integrally-built rigidity, above and below overall structure
Symmetrically, symmetrical, center of gravity is on the line of centres of axle journal, and the center in design middle-end rice and wheat word 8 directions is all unanimously in
On heart line, it is ensured that almost without laying particular stress on phenomenon during rotation, while integral rigidity is also enough, and being unlikely to the top effect of grinding machine makes axis
Bridge bends；Counter-balanced carriage utilizes 4 M30 using 2 M24 screw locks above on workpiece lifting eye, then by counterweight support
Screw picks up the ears with workpiece to be connected behind upper hole through four, reuses 4 M16 and 8 M10 screws by counter-balanced carriage and counterweight support phase
Even.
In addition to the implementation, it is all to use equivalent transformation or equivalent replacement present invention additionally comprises there is other embodiment
The technical solution that mode is formed, should all fall within the scope of the hereto appended claims.
Claims (4)
1. a kind of low-floor railroad vehicle processes weight fixture with axis bridge, it is characterised in that：It includes counter-balanced carriage (2) and counterweight branch
Frame (3), the counter-balanced carriage (2) are fixedly installed in counterweight support (3), and counter-balanced carriage (2) includes two support plates (2.1) in left and right,
Linking arm (2.2) is connected between in the middle part of described two support plates (2.1) in left and right, and support plate (2.1) front and rear sides are all provided with
Connecting plate (2.3) is equipped with, the first connecting hole (2.6) and the second connecting hole (2.7) are provided with the connecting plate (2.3), it is described
First connecting hole (2.6) is located on the inside of the second connecting hole (2.7), and the counterweight support (3) is arranged in parallel with two before and after including
Cross bar (3.1), in the middle part of described former and later two cross bars (3.1) between be provided with vertical pole (3.2), cross bar (3.1) left and right ends
Contiguous block (3.3) is both provided with, contiguous block (3.3) top surface is provided with the 3rd connecting hole (3.4) and the 4th connecting hole
(3.5), the position of the 3rd connecting hole (3.4) is corresponding with the position of the first connecting hole (2.6), the 4th connecting hole
(3.5) position is corresponding with the position of the second connecting hole (2.7), and the connecting plate (2.1) of counter-balanced carriage (2) is held on counterweight support
(3) on contiguous block (3.3), the first connecting hole (2.6) and the second connecting hole (2.7) and contiguous block on connecting plate (2.1)
(3.3) it is connected between the 3rd connecting hole (3.4) and the 4th connecting hole (3.5) on by screw.
2. a kind of low-floor railroad vehicle according to claim 1 processes weight fixture with axis bridge, it is characterised in that：It is described
Locating piece (2.4) is provided between support plate (2.1) bottom and connecting plate (2.3) bottom.
3. a kind of low-floor railroad vehicle according to claim 1 processes weight fixture with axis bridge, it is characterised in that：It is described
Hole for hoist (2.5) is provided with support plate (2.1).
4. a kind of low-floor railroad vehicle according to claim 1 processes weight fixture with axis bridge, it is characterised in that：It is described
Contiguous block (3.3) bottom surface is provided with the 5th connecting hole (3.6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711186537.1A CN107953143A (en) | 2017-11-24 | 2017-11-24 | A kind of low-floor railroad vehicle processes weight fixture with axis bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711186537.1A CN107953143A (en) | 2017-11-24 | 2017-11-24 | A kind of low-floor railroad vehicle processes weight fixture with axis bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107953143A true CN107953143A (en) | 2018-04-24 |
Family
ID=61961932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711186537.1A Pending CN107953143A (en) | 2017-11-24 | 2017-11-24 | A kind of low-floor railroad vehicle processes weight fixture with axis bridge |
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| Country | Link |
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| CN (1) | CN107953143A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5293684A (en) * | 1992-07-28 | 1994-03-15 | Tecumseh Products Company | Reduced material crankshaft fabrication |
| CN201235400Y (en) * | 2008-08-07 | 2009-05-13 | 宝鸡石油机械有限责任公司 | Pullback weight fixture for large hook body lathe work |
| CN103934476A (en) * | 2014-05-06 | 2014-07-23 | 南车青岛四方机车车辆股份有限公司 | Rail vehicle bogie axle box body lathe machining device |
| CN203973284U (en) * | 2014-07-16 | 2014-12-03 | 东风德纳车桥有限公司 | A kind of axle housing balance weight mechanism |
| CN104759848A (en) * | 2015-03-31 | 2015-07-08 | 常州南车铁马科技实业有限公司 | Manufacturing method of axle for low-floor vehicle |
| CN105397429A (en) * | 2015-12-21 | 2016-03-16 | 常州南车铁马科技实业有限公司 | Mechanical processing method of axle bridge for rail vehicle |
-
2017
- 2017-11-24 CN CN201711186537.1A patent/CN107953143A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5293684A (en) * | 1992-07-28 | 1994-03-15 | Tecumseh Products Company | Reduced material crankshaft fabrication |
| CN201235400Y (en) * | 2008-08-07 | 2009-05-13 | 宝鸡石油机械有限责任公司 | Pullback weight fixture for large hook body lathe work |
| CN103934476A (en) * | 2014-05-06 | 2014-07-23 | 南车青岛四方机车车辆股份有限公司 | Rail vehicle bogie axle box body lathe machining device |
| CN203973284U (en) * | 2014-07-16 | 2014-12-03 | 东风德纳车桥有限公司 | A kind of axle housing balance weight mechanism |
| CN104759848A (en) * | 2015-03-31 | 2015-07-08 | 常州南车铁马科技实业有限公司 | Manufacturing method of axle for low-floor vehicle |
| CN105397429A (en) * | 2015-12-21 | 2016-03-16 | 常州南车铁马科技实业有限公司 | Mechanical processing method of axle bridge for rail vehicle |
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