CN108127353A - A kind of compressor long axis processing method - Google Patents
A kind of compressor long axis processing method Download PDFInfo
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- CN108127353A CN108127353A CN201810033996.4A CN201810033996A CN108127353A CN 108127353 A CN108127353 A CN 108127353A CN 201810033996 A CN201810033996 A CN 201810033996A CN 108127353 A CN108127353 A CN 108127353A
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- endoporus
- benchmark
- outer circle
- long axis
- processing method
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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 compressor long axis processing method, including step：(1), rough turn part removes extra surplus, and in the rough turn logical endoporus of inside parts, and processes inner bore chamfering；(2), it is heat-treated；(3), part outer circle is ground；(4), slow wire feeding precision-machined parts endoporus；(5), the step inner circle of smart car part one end, and correct the end inner bore chamfering；(6), it crosses, end-face hole position reference line is drawn in interior round platform terrace；(7), drill end hole；(8), centering endoporus, smart car part other end outer circle gradient and inner hole thread, and screw thread Hole chamfering is corrected, the A on the basis of the cylindrical outer circle at the end, benchmark A made allowances；(9) benchmark A outer circles are pressed from both sides, push up endoporus, the outer circle gradient at smart car benchmark A opposite directions end；(10), both ends endoporus is pushed up, grinds benchmark A outer circles；(11), it clamps, removes part burr；(12), it detects a flaw；(13), completion storage.The present invention has the advantages that be convenient for clamping, with high accuracy.
Description
Technical field
The present invention relates to field of machining, specially a kind of compressor long axis processing method.
Background technology
Compressor is to utilize high-speed rotating blade to air work done to improve the mechanism of air pressure in combustion gas turbine,
Compressor long axis is one of important part on compressor.
As shown in Figure 1 and Figure 2, compressor long axis 300 is assemblied on compressor, and in Fig. 2,100 be pull rod, and 200 be impeller,
300 be compressor long axis, and 400 be compressorshaft bearing, and 500 be bearing, and 600 be measure speed gears axis.As shown in Figure 1, compressor
Long axis length is longer, and diameter of bore is smaller, and processing is more difficult；Its both ends outer circle is irregular inclined circle of being outside one's consideration, and wherein one end also has
Cylindrical outer circle 301, the other end also have step inner circle 302.The technique for processing such compressor long axis at present typically first adds
Work goes out the cylindrical outer circle 301 of part one end and the gradient outer circle at the end, and A is determined on the basis of the cylindrical outer circle at the end
Position, is processed further inner bore of part and other outer circles, inner circle.However there is very big technological deficiency in terms of this processing technology：
Stablize to meet Capability of Compressor, which requires the concentricity of the benchmark A and endoporus to be less than 0.03, and benchmark
The surface roughness requirements Ra0.8 of A.Using above-mentioned processing technology, since part both ends are irregular inclined circle of being outside one's consideration, part is processed
Process is not easy clamping, low so as to cause the compressor long axis precision processed, can not meet the requirement of part concentricity, and product is qualified
Rate is low.Therefore for this part, it is contemplated that the positioning datum of conversion part come solve above-mentioned technique there are the defects of.This hair
Bright technical problems to be solved are：A) part benchmark is converted, ensures the concentricity of part cylinder outer circle benchmark A and elongated bore
It is required that；B) convert benchmark after elongated bore processing；C) the clamping problem of part.
Invention content
For the defects in the prior art, the present invention provides a kind of processing method of compressor long axis, uses and new determines
Position benchmark is easy to centering, and positioning accuracy is high, and convenient for clamping, the compressor major axis dimension precision processed is high, part qualification rate
It is high.
Technical solution of the present invention is as follows：A kind of compressor long axis processing method, it is characterised in that：Include the following steps：
(1), rough turn part removes extra surplus, and in the rough turn logical endoporus of inside parts, and processes endoporus and two end faces
Chamfering；
(2), it is heat-treated, part is made to meet material performance requirement；
(3), both ends endoporus is pushed up, grinds part outer circle；
(4), outer circle, wire cutting, slow wire feeding precision-machined parts endoporus are pressed from both sides；
(5), centering endoporus, the step inner circle of smart car part one end, and correct the chamfering of the end endoporus and inner circle step surface；
(6), it crosses, end-face hole position reference line is drawn in interior round platform terrace；
(7), drill end hole；
(8), centering endoporus, smart car part other end outer circle gradient, cylindrical outer circle and inner hole thread, and correct threaded hole
With end chamfer, the A on the basis of the cylindrical outer circle at the end, benchmark A made allowances；
(9) benchmark A outer circles are pressed from both sides, push up endoporus, the outer circle gradient at smart car benchmark A opposite directions end；
(10), both ends endoporus is pushed up, grinds benchmark A outer circles；
(11), it clamps, removes part burr；
(12), it detects a flaw to part；
(13), completion storage.
Preferably, rough turn logical diameter of bore is less than slow wire feeding finishing diameter of bore in step (4) in step (1).
Preferably, it is carried out in two steps in step (1), the first step, rough turn part one end, removes extra surplus, the rough turn end
Endoporus simultaneously processes endoporus and end chamfer；Second step, the rough turn part other end remove the extra surplus in the end, connect endoporus and add
The work endoporus and end chamfer.
Preferably, the chamfering of endoporus and two end faces is 3 × 60 in step (1).
Preferably, the chamfering of endoporus and inner circle step surface is 1 × 60 ° in step (5).
Preferably, the chamfering of threaded hole and end face is 1.5 × 60 ° in step (8).
Compared with prior art, the invention has the advantages that：
1st, whole process is easy to centering, can preferably ensure to press using endoporus with high accuracy as machining benchmark
The processing quality of mechanism of qi long axis more preferably meets real work demand, and high in machining efficiency, Cutter wear is few.
2nd, due to the required precision of endoporus height, if directly added with the special extension drill (single-piece is not easy to purchase) of customization
Work because compressor long shaft part draw ratio is more than 15, is fractureed, and be not easy to ensure size with drill bit handling ease.If use vehicle
Knife turning inner hole, lengthening knife bar (single-piece is not easy to purchase) are necessarily less than endoporus, and the too thin work in-process of knife bar, easily lead to cutter hair
It shakes or causes cracking of cutter, be less susceptible to realize.The present invention ensures the high-precision of inner bore of part using line cutting slow wire feeding processing
It is required that slow wire feeding high precision machining, stability is good, and effect is good, and compared to extension drill or spreading cutter, price is relatively just
Preferably.
3rd, the rational processing sequence of the present invention ensure that in each process can Set and Positioning part well, emphasis
Machining accuracy is effectively ensured, and processing program is simple in part axial and radial positioning, improves processing efficiency.
4th, step (7) is set to before step (8), subdrilling end-face hole, then to part subsequently carry out finishing purpose be
Except extra surplus, caused part deformation in control drilling further controls part processing precision.
5th, the chamfering of endoporus and inner circle step surface is changed to 1 × 60 ° from traditional 1 × 45 ° in step (5) of the present invention, step
Suddenly folder benchmark A outer circles in (9), the endoporus (chamfering is 1 × 60 °) at top benchmark A opposite directions end, in this way using the side on one top of a folder
Method carrys out the outer circle gradient at smart car benchmark A opposite directions end, and part axial and radial positioning are reliable, high precision machining, and chamfering changes
Into be conducive to clamping and do not interfere with complete machine use.
6th, it is carried out in two steps in step (1), the first step, rough turn part one end, removes extra surplus, the rough turn end endoporus is simultaneously
Process endoporus and end chamfer；Second step, the rough turn part other end remove the extra surplus in the end, connect endoporus and to process this interior
Hole and end chamfer.Since compressor long axis diameter of bore is smaller, length dimension is larger relative to diameter dimension, therefore using two
The method that end vehicle leads to endoporus leads to endoporus compared to disposable vehicle and easily facilitates processing.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the technical solution in the specific embodiment of the invention or background technology
Embodiment or existing or part are generally identified by similar reference numeral.In attached drawing, each element or part might not be according to realities
The ratio on border has attached drawing needed in technology description to be briefly described.In all the appended drawings, similar element example is drawn.
Fig. 1 is compressor long axis structure diagram；
Fig. 2 is that compressor long axis is assemblied in the assembling schematic diagram on compressor in background technology；
Fig. 3 is compressor long axis roughing endoporus one end schematic diagram in step (1)；
Fig. 4 is compressor long axis roughing endoporus other end schematic diagram in step (1)；
Fig. 5 is that the step inner circle, endoporus and inner circle step surface of processing compressor long axis one end in step (5), (6), (7) fall
Angle, the schematic diagram of end-face hole；
Fig. 6 is compressor long axis semifinishing benchmark A in step (8) and finishes the end outer circle gradient schematic diagram；
Fig. 7 is the outer circle gradient schematic diagram that compressor long axis finishes benchmark A ends opposite direction in step (9)；
Fig. 8 finishes benchmark A schematic diagrames for step (11) compressor long axis.
In attached drawing：100- pull rods；200- impellers；300- compressor long axis；301- cylinder outer circles；302- step inner circles；
303- end-face holes；400- compressorshaft bearings；500- bearings；600- measure speed gears axis；For soft three-jaw；To compress.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
In the present embodiment, the orientation or position of the instructions such as term " on " " under " " left side " " right side " " preceding " " rear " " upper end " " lower end "
It is based on orientation shown in the drawings or position relationship to put relationship, is for only for ease of description rather than instruction or implies meaning
Device or element must have specific orientation, with specific azimuth configuration or operation, therefore it is not intended that the present invention's
Limitation.
It is a kind of preferred embodiment of compressor long axis processing method referring to figs. 1 to Fig. 8.The compressor long axis to be processed
As shown in Figure 1, part overall length 211mm, diameter of bore 12.5mm；Its both ends is irregular inclined circle of being outside one's consideration, and wherein one end also has
There is cylindrical outer circle 301, the other end also has step inner circle 302；The concentricity requirement 0.03 of wherein cylindrical outer circle and endoporus
Hereinafter, the roughness requirements of cylindrical outer circle 301 are Ra0.8.The compressor long axis processing method carries out according to the following steps：
Step (1), rough turn part, remove extra surplus, lead to endoporus in inside parts vehicle, which is φ 8, and is added
The chamfering of work endoporus and two end faces is 3 × 60 °.Specifically：The first step, rough turn part one end remove extra surplus, and endoporus is first
φ 8 is machined to, processing endoporus is 3 × 60 ° with end chamfer, as shown in Figure 3；Second step, the rough turn part other end, removal are extra
Surplus, endoporus are connected by φ 8,3 × 60 ° of processing endoporus and end chamfer；As shown in Figure 4.
Step (2), heat treatment, make part meet material performance requirement.
Step (3), top both ends endoporus, grind part outer circle, light goes out outer circle, and outer circle of being subject to is ground, i.e., will be outside part
Circle grinds cylindrical surface, is used as next procedure centering.
The outer circle ground in step (4), soft three-jaw folder step (3) carries out inner bore of part wire cutting, slow wire feeding finishing
Inner bore of part diameter is to 12.5mm, using the endoporus as positioning datum.
Step (5), centering inner bore of part, soft three-jaw folder outer circle and correct the end at the step inner circle 302 of smart car part one end
The chamfering of endoporus and inner circle step surface is 1 × 60 °；As shown in Figure 5.
Step (6) draws end-face hole position reference line in interior round platform terrace.
Step (7), drill end hole (with reference to figure 5).
Step (8), centering inner bore of part, soft three-jaw folder outer circle, the outer circle gradient of the smart car part other end, cylindrical outer circle
And inner hole thread, and thread mill drilling mouth and end chamfer are 1.5 × 60 °, the A on the basis of the cylindrical outer circle 301 at the end, base
Quasi- A is ground (i.e. semifinishing) after staying certain surplus, as shown in Figure 6.
Step (9) presss from both sides benchmark A outer circles, and the endoporus (the end inner bore chamfering is 1 × 60 °) at top benchmark A opposite directions end uses
The installation way on one folder, one top, the outer circle gradient at finishing processing benchmark A ends opposite direction end；As shown in Figure 7.
Step (10), as shown in figure 8, top endoporus both ends, due to benchmark A in step (8) there are surplus, outside mill benchmark A
Circle, ensures its dimensional tolerance and roughness requirements Ra0.8；Screw thread end face mill rear thread chamfering is 1 × 60 °.
Step (11), pincers, remove part burr.
Step (12) detects a flaw to part；
Step (13), completion storage.
In conclusion the present invention is processed using the method for conversion part benchmark, high-precision part endoporus is first finished out,
By the use of the inner bore of part processed as benchmark.Due to the conversion of benchmark, the concentricity of the 0.03mm of endoporus and outer circle is more demanding,
And ensure after all inner hole machined of all geometric tolerances of part.Therefore, inner bore of part, slow wire feeding processing are processed using slow wire feeding
Precision is high, and stability is good, and effect is good, is unlikely to deform, and the endoporus processed can guarantee the requirement as benchmark completely.Analysis zero
Part is equipped and performance, and under the service condition for not influencing complete machine, the chamfering of 1 × 45 ° of traditional endoporus and end face is changed to 1
× 60 ° of chamfering finally processes irregular inclined be outside one's consideration using the method on folder (benchmark A) one tops (chamfering on 1 × 60 ° of top)
Circle.It processes that part is irregular inclined to be outside one's consideration after circle, uses the chamfering on 1 × 60 ° of Double ejection pin top to grind step outer circle datum hole A to reach
To the Geometrical Tolerance Principle and roughness requirements of drawing.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that；It still may be used
Either which part or all technical features are equal with modifying to the technical solution recorded in previous embodiment
It replaces；And these modifications or replacement, the model for technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses, should all cover in the claim of the present invention and the range of specification.
Claims (6)
1. a kind of compressor long axis processing method, which is characterized in that include the following steps：
(1), rough turn part removes extra surplus, and in the rough turn logical endoporus of inside parts, and processes endoporus and fallen with two end faces
Angle；
(2), it is heat-treated, part is made to meet material performance requirement；
(3), both ends endoporus is pushed up, grinds part outer circle；
(4), outer circle, wire cutting, slow wire feeding precision-machined parts endoporus are pressed from both sides；
(5), centering endoporus, the step inner circle of smart car part one end, and correct the chamfering of the end endoporus and inner circle step surface；
(6), it crosses, end-face hole position reference line is drawn in interior round platform terrace；
(7), drill end hole；
(8), centering endoporus, smart car part other end outer circle gradient, cylindrical outer circle and inner hole thread, and correct threaded hole and end
Surface chamfer, the A on the basis of the cylindrical outer circle at the end, benchmark A made allowances；
(9) benchmark A outer circles are pressed from both sides, push up endoporus, the outer circle gradient at smart car benchmark A opposite directions end；
(10), both ends endoporus is pushed up, grinds benchmark A outer circles；
(11), it clamps, removes part burr；
(12), it detects a flaw to part；
(13), completion storage.
2. compressor long axis processing method according to claim 1, it is characterised in that：Rough turn logical endoporus is straight in step (1)
Diameter is less than slow wire feeding finishing diameter of bore in step (4).
3. compressor long axis processing method according to claim 2, it is characterised in that：Step is carried out in two steps in (1), the
One step, rough turn part one end remove extra surplus, and the rough turn end endoporus simultaneously processes endoporus and end chamfer；Second step, rough turn zero
The part other end removes the extra surplus of the other end, connects endoporus and processes endoporus and end chamfer.
4. compressor long axis processing method according to claim 1, it is characterised in that：Endoporus and two ends in step (1)
The chamfering in face is 3 × 60 °.
5. compressor long axis processing method according to claim 1, it is characterised in that：Endoporus and interior round platform in step (5)
The chamfering of terrace is 1 × 60 °.
6. compressor long axis processing method according to claim 1, it is characterised in that：Step (8) threaded hole and end face
Chamfering is 1.5 × 60 °.
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| CN201810033996.4A CN108127353B (en) | 2018-01-15 | 2018-01-15 | A kind of compressor long axis processing method |
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| CN201810033996.4A CN108127353B (en) | 2018-01-15 | 2018-01-15 | A kind of compressor long axis processing method |
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| CN108127353A true CN108127353A (en) | 2018-06-08 |
| CN108127353B CN108127353B (en) | 2019-09-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114102067A (en) * | 2021-12-02 | 2022-03-01 | 北京中航科电测控技术股份有限公司 | Special machining method for aviation thin-wall parts |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204556901U (en) * | 2015-04-29 | 2015-08-12 | 高安天孚光电技术有限公司 | Large chamfering porcelain bushing |
| CN105252216A (en) * | 2015-10-20 | 2016-01-20 | 中国电子科技集团公司第四十八研究所 | Machining method for large-length-diameter-ratio deep through holes in end face of round plate |
| CN105414906A (en) * | 2015-12-30 | 2016-03-23 | 天津市汇通仪器设备公司 | High-strength and high-precision hub shaft machining method |
-
2018
- 2018-01-15 CN CN201810033996.4A patent/CN108127353B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204556901U (en) * | 2015-04-29 | 2015-08-12 | 高安天孚光电技术有限公司 | Large chamfering porcelain bushing |
| CN105252216A (en) * | 2015-10-20 | 2016-01-20 | 中国电子科技集团公司第四十八研究所 | Machining method for large-length-diameter-ratio deep through holes in end face of round plate |
| CN105414906A (en) * | 2015-12-30 | 2016-03-23 | 天津市汇通仪器设备公司 | High-strength and high-precision hub shaft machining method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114102067A (en) * | 2021-12-02 | 2022-03-01 | 北京中航科电测控技术股份有限公司 | Special machining method for aviation thin-wall parts |
| CN114102067B (en) * | 2021-12-02 | 2022-08-23 | 北京中航科电测控技术股份有限公司 | Special machining method for aviation thin-wall parts |
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| CN108127353B (en) | 2019-09-24 |
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