CN106514146B - A kind of split type axle box body processing technology - Google Patents
A kind of split type axle box body processing technology Download PDFInfo
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- CN106514146B CN106514146B CN201611022831.4A CN201611022831A CN106514146B CN 106514146 B CN106514146 B CN 106514146B CN 201611022831 A CN201611022831 A CN 201611022831A CN 106514146 B CN106514146 B CN 106514146B
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- axle box
- split type
- positioning
- processing technology
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- 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
Abstract
The present invention provides a kind of split type axle box body processing technologies, the split type axle box includes upper box, lower box, upper and lower body structure is close, it is interchangeable, axle box is formed by upper and lower cabinet faying face mould assembling between upper and lower cabinet, processing technology provided in the present invention, compared with prior art, it can guarantee upper and lower cabinet single-piece work precision, it ensure that the processing efficiency and mould assembling precision when single-piece work, multi-angle reduce tolerances, machining accuracy is further increased, and is suitable for axle box flexible production line.
Description
Technical field
The present invention relates to a kind of axle box body processing technology, especially a kind of processing work for the processing of split type axle box
Skill.
Background technique
In process, monoblock type tumbler shaft cabinet is complex in replacement wheel clock synchronization, and palpus will for rail truck axle box
Axle box is separated with framework, and complex process, process is more, and more dependence special tooling, construction space is narrow, operating difficulties.
To realize quick-replaceable wheel to operation, it is desirable that use split type axle box.The processing technology of split type axle box has been required to
Effect is implemented, processing quality is safe and reliable, and split type axle box processing, dismounting rear bearing pore size tolerance and line position can be effectively controlled
The processing method of tolerance has higher production efficiency and stable processing quality, guarantees the orderly progress of production.
Summary of the invention
Present invention is primarily aimed at solving the above problems and insufficient, a kind of split type axle box body processing technology is provided, it can
Guarantee that upper and lower cabinet single-piece work precision, processing efficiency when ensure that single-piece work ensure that mould assembling precision.
To achieve the above object, the present invention provides a kind of split type axle box body processing technology, the split type axle boxes
Including upper box, lower box, upper and lower body structure is close, interchangeable, is closed between upper and lower cabinet by upper and lower cabinet faying face
Box-shaped includes the following steps at axle box, the processing technology,
S1, seperated axle box roughing carry out boring and milling etc. to the region of interest of upper and lower cabinet and slightly add according to prior art
Work operation；
S2, seperated axle box finishing, finishes the upper and lower cabinet of roughing；
The processing technology is further comprising the steps of:
S3, positioning pin processing, carries out positioning pin processing by the way of grinding, guarantees machining accuracy；
S4, for upper and lower cabinet by the connection of positioning pin, mould assembling forms axle box, and to the axle box after mould assembling form into
Row rough cutting operations；
S5, machining simulation complete the three-dimension modeling of split type axle box, cutter and tooling using drawing tool, lead to
It crosses simulation software emulate with the identical virtual manufacture of actual processing, ruler is processed by the measurement Function detection of software
It is very little, and determine whether to re-start aforementioned a certain or Overall Steps according to testing result and carry out Dimension correction or enter next processing
Operating procedure；
S6 carries out following steps to the axle box region of interest after mould assembling according to simulation result after emulating and detecting qualification
Finishing operations, complete the overall processing of axle box,
S61 completes groove location with turnery processing, then surplus using quadrangle of the milling mode removal wheel to lifting prominent position
Remaining part position；
S62, in horizontal Machining centers finishing passes, axle box side is put, after positioning, boring and milling positioning cylinder and upper flat
Plane, damper mounting surface and hole, drilling and tapping on face, positioning node hole；
S63, axle box are just put, after positioning, milling spindle bearing bore, positioning node hole and end face, each hole.
Further, in process, after single-piece work, every carries out three coordinate measurements.
Further, in step S63, when bearing hole finishes, first heavy boring bearing hole, and complete other overall dimensions
Afterwards, time out program unclamps clamping tool, reduces clamping force, after specific time, then carries out the finishing of bearing hole.
Further, positioning node hole is completed the process using the first step of angular milling, without disassembly.
Further, in step S62, side position blow-down, finishing are carried out to axle box with the finishing benchmark that roughing is reserved
Work benchmark includes bearing hole positioning end face, positioning node hole and positioning bearing hole.
Further, it in the step S63, is positioned with machined pilot mounting plane and positioning node mounting plane
After carry out following process.
Further, in step s 2, the faying face of upper and lower cabinet finish-milling operation, by the way of laterally and tightly propped into
Row compresses.
Further, a pair of upper and lower cabinet, while being mounted on machine tool workbench sequence simultaneously and processing.
In conclusion a kind of split type axle box body processing technology provided by the invention has following compared with prior art
Advantage:
1. improving single-piece work precision, guarantee single-piece work quality and processing efficiency；
2. improving mould assembling precision；
3. reducing influence of the clamping power to axle box bearing also machining accuracy geometric tolerance precision；
4. multi-angle reduces tolerances, machining accuracy is further increased；
5. being adapted to flexible production line, high production efficiency；
6. initial workpiece process safety, success rate is high.
Detailed description of the invention:
Fig. 1: mould assembling axle box main view in a kind of split type axle box body processing technology of the present invention；
Fig. 2: mould assembling axle box top view in a kind of split type axle box body processing technology of the present invention；
Fig. 3: A-A sectional view in figure one；
Wherein: positioning node pin hole 1, positioning node hole 2, dowel hole 3, positioning pin 4 are taken turns to lifting 5, bevel structure 6,
Upper and lower cabinet faying face 7, positioning node mounting plane 8, groove 9, damper mounting surface and hole 10, bearing hole 11 position bearing
Hole 12, bearing hole position end face 13, pilot mounting plane 14, axle box 15, upper box 16, lower box 17.
Specific embodiment
The present invention is described in further detail with specific embodiment with reference to the accompanying drawing.
As shown in Figures 1 to 3, a kind of split type axle box body processing technology provided by the invention, split type axle box 15 include
Upper box 16, lower box 17, upper and lower body structure is close, interchangeable, passes through upper and lower cabinet faying face 7 between upper and lower cabinet
Mould assembling forms axle box 15, and wherein processing technology includes the following steps,
It is thick to carry out boring and milling etc. to the region of interest of upper and lower cabinet according to prior art for S1, seperated 15 roughing of axle box
Process operation；
S2, seperated axle box 15 are finished, are finished to the upper and lower cabinet of roughing；
It is distinguished with the prior art, processing technology is further comprising the steps of,
S3, positioning pin 4 are processed, and the processing of positioning pin 4 is carried out by the way of grinding, guarantees machining accuracy；
S4, upper and lower cabinet pass through the connection of positioning pin 4, and mould assembling forms axle box 15, and to 15 groups of axle box after mould assembling
At progress rough cutting operations；
S5, machining simulation complete the three-dimension modeling of split type axle box 15, cutter and tooling using drawing tool,
Emulate with the identical virtual manufacture of actual processing by simulation software, ruler is processed by the measurement Function detection of software
It is very little, and determine whether to re-start aforementioned a certain or Overall Steps according to testing result and carry out Dimension correction or enter next processing
Operating procedure.Three-dimensional modeling is carried out using UG software, virtual manufacture emulation is carried out by VERICUT simulation software and size is examined
It surveys, effectively can find the problem and solve the problems, such as in advance, greatly improve initial workpiece process safety in kind；
S6 carries out finishing operations to the axle box 1 after mould assembling according to simulation result after emulating and detecting qualification, complete
At the overall processing of axle box 1.
As shown in Figure 1, axle box 15 be it is split type, be divided into identical structure and interchangeable upper box 16 and lower box 17,
In the present invention, step S1 and step S2 and existing split type axle box processing method are essentially identical, specific processing method method,
The lathe that the working face and processing for needing to process use is same as the prior art, and this will not be repeated here, unlike the prior art
, in step S1 and step S2, a pair of upper and lower cabinet is mounted on the workbench of machine tool simultaneously, at the same sequence into
Row roughing and corresponding finishing operations, as far as possible influence of the elimination equipment to machining accuracy, guarantee machining accuracy, set because same
Standby simultaneous processing, the mismachining tolerance of generation is identical, is further ensured that the precision of fit rear axle cabinet 15；The processing of dowel hole 3
Technique includes that the thick strand-essence of brill-expansion-twists, and when essence twists dowel hole 3, is ground by processing technology experiment and meets required precision
Reamer, and with it is same reamer complete dowel hole 3 process operation, guarantee upper and lower cabinet dowel hole 3 processing essence
Degree, in the present embodiment, the machining accuracy of dowel hole 3 is (+0.002,0.008) mm.
In the upper and lower cabinet finishing for carrying out step S2,11 peripheral structure of bearing hole is generally directly born against using pressing plate
Compression mode, but this conventional compression mode, due to compacted position and the difference of pressure, the pressing force of generation will affect
The flatness of upper and lower case faying face 7 in seperated 15 finishing passes of axle box, therefore in the present invention, in step S1, use
Conventional compression mode increases by four sides top in step s 2 on axle box 15, in the upper and lower cabinet faying face 7 of finish-milling,
Unclamp it is intermediate it is conventional compress, arrow direction as shown in Figure 2 provides pressing force, only from laterally and tightly propped, generates to bevel structure 6
Counterpressure accurately processes upper and lower cabinet faying face 7, ensure that the flatness of upper and lower cabinet faying face 7 after processing,
In the present embodiment, the flatness of the upper and lower cabinet faying face 7 after processing is 0.02, further strengthens split type axle box 15
Machining accuracy.During the roughing of step S1, by the rational design of tooling, guarantee big machining when roughing
When, the stability of clamping workpiece, and being quickly converted by way of compression, and when can guarantee finishing, upper and lower cabinet faying face
7 and prong be in free state, be further ensured that machining accuracy.
In step s 2, when carrying out the finishing of lateral bevel structure 6, the processing method cut using row is minimized
Process radial force, to reduce the influence processed to dimensional accuracy.
When step S1 and S2 carry out seperated single-piece work, multi-angle improves the precision of upper and lower cabinet faying face 7, makes to pitch
Mouth, to reduce the influence to processing, avoids Light deformation caused by pressing force and cutting stress, thus influence group in free state
Fill precision；The sharp Integral alloy cutter of cutting tool choice in process reduces diameter with high revolving speed, small bite, fast feeding
To cutting force, it is mobile that Z axis is not generated during feed with control processing flatness.It ensure that processing when single-piece work simultaneously
Efficiency guarantees subsequent mould assembling precision.The application of determinant formula is when reducing single-piece work, and the design of bevel structure 6 reduces pair
The structure and required precision of cutter.
In step s3, positioning pin 4 guarantees precision by the way of grinding plus formula, in the present embodiment, the essence of positioning pin 4
Degree is (- 0.002 ,+0.002) mm.As shown in Figure 1,4 one end of positioning pin is inserted into the dowel hole 3 on lower box 17, and with
The interference fit of dowel hole 3 on lower box 17 is fixed on lower box 17, by the other end insertion upper box 16 of positioning pin 4
In dowel hole 3, upper and lower cabinet is combined together with this, mould assembling forms axle box 15.Wherein dowel hole 3 is opened in above and below
On cabinet faying face 7.The wherein bevel structure 6 in upper and lower cabinet can play certain positioning and effect of contraction, avoid upper and lower
The displacement of cabinet.
To ensure processing quality, it is ensured that each component meets requirement on machining accuracy, and after single-piece work, every carries out three coordinates
Mapping, single-piece quality before control assembles, it is ensured that the required precision of mould assembling rear axle cabinet 1.
Further include following steps in step S6 of the present invention to further increase mould assembling body machining accuracy after mould assembling:
S61, finishing complete 9 position of groove that horizontal Machining centers can not be processed with turnery processing first, then using milling
The mode of cutting removes wheel to the quadrangle residue position of 5 prominent position of lifting, avoids cutter interference；
Axle box 15 after mould assembling can carry out on axle box Flexible Manufacture production line, be carried out in two steps altogether:
S62, in horizontal Machining centers finishing passes, 15 side of axle box is put, the finishing benchmark reserved with roughing
It positions, plane, damper mounting surface and hole 10 on boring and milling positioning cylinder and upper plane, positioning node hole 2, drilling and tapping；At this
In embodiment, origin reference location is carried out by the way of two hole one sides, wherein two holes are positioning node hole 2, positioning bearing hole 12, one
Face is that bearing hole positions end face 13, after being positioned with positioning node hole 2, positioning bearing hole 12 and bearing hole positioning end face 13,
Carry out subsequent process operation；Wherein, positioning node hole 2 is completed the process using the first step of angular milling, without disassembly, increases processing
Efficiency.
S63,15 side of axle box puts after processing is completed, axle box 15 is just being put, after positioning, milling spindle bearing bore 11, positioning node
Hole 2 and end face, each hole；Wherein, it is positioned with machined pilot mounting plane 14 and positioning node mounting plane 8, it is flat with this
Threaded hole on face is tightened, and guarantees that axle box 15 during processing not by pressure and pulling force, avoids clamping power to bearing
The influence of 11 dimensional accuracy of hole, to ensure machining accuracy, in the present embodiment, tool locating cylinder is matched with workpiece positioning interporal lacuna
Error is closed between (+0.05 ,+0.1) mm.
When carrying out the finishing of bearing hole 11, first heavy boring bearing hole 11, and complete other overall dimensions that need to be finished
Afterwards, suspend processing program, unclamp clamping tool, reduce clamping force, after workpiece discharges stress, using flat clamping tool is assisted, such as
Using bolt clamp force, it is generally not necessarily to especially additional pressing force, compression can be realized using upper and lower cabinet self gravity, herein
Under state, through specific time, after stress release, then the finishing operations of bearing hole 11 are carried out.Simultaneously as material hardness is high,
There are interrupted cuts at upper and lower cabinet faying face 7, it is therefore desirable to reduce cutting linear velocity, guarantee cylindricity requirement, avoid cutting
Power influences workpiece accuracy, and by the reasonable selection to cutting parameter, control cutting radial force is to 11 change in size of bearing hole
It influences.
Process operation is carried out on the axle box processing flexibility production line that the finishing of axle box 15 after mould assembling can be present,
The advantage of existing axle box processing flexibility line production system is given full play to, AGV trolley automatic loading/unloading realizes people's multimachine control
System.Procedure arrangement and installation way after mould assembling effectively reduce clamping power to 11 machining accuracy of bearing hole of axle box 15
And the influence of geometric tolerance precision, the processing method after mould assembling meet the requirement of axle box processing flexibility line, have given full play to soft
Property high production efficiency the characteristics of, improve good reference frame for the processing of similar structures part, and have higher production effect
Rate and stable processing quality guarantee the orderly progress of production.
In conclusion a kind of split type axle box body processing technology provided by the invention has following compared with prior art
Advantage:
1. improving single-piece work precision, guarantee single-piece work quality and processing efficiency；
2. improving mould assembling precision；
3. reducing influence of the clamping power to axle box bearing also machining accuracy geometric tolerance precision；
4. multi-angle reduces tolerances, machining accuracy is further increased；
5. being adapted to flexible production line, high production efficiency；
6. initial workpiece process safety, success rate is high.
As described above, similar technical solution can be derived in conjunction with given plan content.But it is all without departing from this
The content of inventive technique scheme, according to the technical essence of the invention any simple modification to the above embodiments, equivalent change
Change and modify, all of which are still within the scope of the technical scheme of the invention.
Claims (8)
1. a kind of split type axle box body processing technology, the split type axle box includes upper box, lower box, upper and lower cabinet knot
Structure is close, interchangeable, forms axle box by upper and lower cabinet faying face mould assembling between upper and lower cabinet, and the processing technology includes
Following steps,
S1, seperated axle box roughing carry out the roughing such as boring and milling to the region of interest of upper and lower cabinet and grasp according to prior art
Make；
S2, seperated axle box finishing, finishes the upper and lower cabinet of roughing；
It is characterized by: the processing technology is further comprising the steps of,
S3, positioning pin processing, carries out positioning pin processing by the way of grinding, guarantees machining accuracy；
S4, for upper and lower cabinet by the connection of positioning pin, mould assembling forms axle box, and carries out to the axle box composition after mould assembling thick
Process operation；
S5, machining simulation complete the three-dimension modeling of split type axle box, cutter and tooling using drawing tool, by imitative
True software emulate with the identical virtual manufacture of actual processing, by the measurement Function detection processing dimension of software, and
Determine whether to re-start aforementioned a certain or Overall Steps according to testing result to carry out Dimension correction or enter next process operation
Step；
S6 carries out the essence of following steps according to simulation result after emulating and detecting qualification to the axle box region of interest after mould assembling
Process operation completes the overall processing of axle box,
S61 completes groove location with turnery processing, then using milling mode removal wheel to the quadrangle remainder of lifting prominent position
Position；
S62, in horizontal Machining centers finishing passes, axle box side is put, and after positioning, boring and milling positioning cylinder and upper plane are determined
Plane, damper mounting surface and hole in the node holes of position, drilling and tapping；
S63, axle box are just put, after positioning, milling spindle bearing bore, positioning node hole and end face, each hole.
2. a kind of split type axle box body processing technology as described in claim 1, it is characterised in that: in process, single-piece
After processing, every carries out three coordinate measurements.
3. a kind of split type axle box body processing technology as described in claim 1, it is characterised in that: in step S63, bearing hole
When finishing, first heavy boring bearing hole, and after completing other overall dimensions, time out program unclamps clamping tool, clamping force is reduced,
After specific time, then carry out the finishing of bearing hole.
4. a kind of split type axle box body processing technology as described in claim 1, it is characterised in that: positioning node hole uses angle
One step of milling head completes the process, without disassembly.
5. a kind of split type axle box body processing technology as described in claim 1, it is characterised in that: in step S62, with roughing
Reserved finishing benchmark carries out side position blow-down to axle box, and finishing benchmark includes bearing hole positioning end face, positioning node hole
And positioning bearing hole.
6. a kind of split type axle box body processing technology as described in claim 1, it is characterised in that: in the step S63, with
Following process is carried out after pilot mounting plane and positioning node the mounting plane positioning of processing.
7. a kind of split type axle box body processing technology as described in claim 1, it is characterised in that: in step s 2, upper and lower case
The finish-milling of the faying face of body operates, and is compressed by the way of laterally and tightly propped.
8. a kind of split type axle box body processing technology as described in claim 1, it is characterised in that: a pair of upper and lower cabinet, simultaneously
Sequence simultaneously is mounted on machine tool workbench to process.
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| CN201611022831.4A CN106514146B (en) | 2016-11-21 | 2016-11-21 | A kind of split type axle box body processing technology |
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| CN111515631A (en) * | 2020-05-29 | 2020-08-11 | 江苏行星重载齿轮箱有限公司 | Machining method of planetary gear box |
| CN112025207A (en) * | 2020-08-24 | 2020-12-04 | 株洲齿轮有限责任公司 | Machining method for shaft hole of speed reducer shell |
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