CN103801901B - A kind of Type B subway framework pivoted arm location seat complete processing - Google Patents
A kind of Type B subway framework pivoted arm location seat complete processing Download PDFInfo
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- CN103801901B CN103801901B CN201410084883.9A CN201410084883A CN103801901B CN 103801901 B CN103801901 B CN 103801901B CN 201410084883 A CN201410084883 A CN 201410084883A CN 103801901 B CN103801901 B CN 103801901B
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- pivoted arm
- cutter
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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
- B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
- B23P13/02—Making metal objects by operations essentially involving machining but not covered by a single other subclass in which only the machining operations are important
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- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The present invention proposes one Type B subway framework pivoted arm location seat complete processing, and it comprises the following steps: 1. with the circular arc face of U-type groove thick, that seat located by fine boring cutter difference boring pivoted arm thick, smart; 2. with the side of U-type groove described in face and side cutter milling; 3. locate shelves in seat with pivoted arm described in face and side cutter milling. Existing cutter, when not increasing new installation and frock clamp, just under original equipment and processing conditions, is improved, optimization processing technology by the present invention. The situation that working (machining) efficiency is low, product processing quality is unstable making former pivoted arm locate seat becomes working (machining) efficiency height, product processing quality qualification rate reaches 100%, meets the technical requirements of layout design completely, reaches the advanced level of international counterparts industry.
Description
Technical field
The invention belongs to locomotive machinery manufacture field, particularly relate to a kind of Type B subway pivoted arm location seat U-type groove complete processing.
Background technology
The framework of Type B subway framework especially No. 11 line subways (ZMA100) in Shanghai, because the needs of car speed, the pivoted arm location seat of bogie frame is complex-shaped, because which form obstruction, locating shelves and U-type groove in seat to framework overall processing pivoted arm and bringing very big difficulty. Using general process tool, cutterhead is big time not to be gone, it does not have feed and go out the space of cutter. Cutterhead is little cut dark inadequate again. According to standard cutter and general conventional normal processing technology, the pivoted arm location seat of Type B subway bogie frame cannot be processed at all. In order to ensure that No. 11, Shanghai line subway (ZMA100) can hand over car on time, engineering department tackles key problems through technique, devises interior shelves and the U-type groove of the rapid steel slotting cutter processing pivoted arm location seat of a long 200mm diameter phi 63mm, as shown in Figures 2 and 3. Processing characteristics according to slotting cutter, the U-type groove technology of the pivoted arm location seat of design is the complete arc size R42.5 of precision workAfter mm, the step of the 0.25mm of reprocessing and circular sliding slopes, as shown in Figure 1. Owing to slotting cutter easily allows cutter man-hour adding, the phenomenon in uneven thickness that often can produce two sides step occurs, and even also can produce one side does not have step, and the thickness of another side step is 0.5mm. Therefore, the production efficiency of slotting cutter is very low, and cost is extremely high.
Summary of the invention
Based on the deficiencies in the prior art, one of technical issues that need to address of the present invention are to provide a kind of Type B subway framework pivoted arm location seat complete processing, and it comprises the following steps:
1). with boring cutter inside lateral, bore the circular arc face of the U-type groove of pivoted arm location seat;
2). with face and side cutter inside lateral, mill out the side of described U-type groove;
3). with face and side cutter from top to bottom, mill out described pivoted arm location seat interior shelves; Described in its handle of a knife diameter ratio of described face and side cutter, the groove width of U-type groove is little.
Seat complete processing is located in improvement on the one hand: described boring cutter is �� 85mm heavy boring cutter and �� 85mm fine boring cutter, first heavy boring, the boring of rear essence as the present invention's a kind of Type B subway framework pivoted arm;Described face and side cutter is �� 200mm face and side cutter.
Seat complete processing is located in improvement on the one hand: described step 2 as the present invention's a kind of Type B subway framework pivoted arm) in, the cutting speed of face and side cutter is 300 ms/min, the amount of feed is 250 millis m/min.
Originally the complete processing adopting seat U-type groove circular arc face, No. 11 line subway (ZMA100) framework pivoted arms location, �� 63mm rapid steel slotting cutter processing Shanghai is changed into first using and changes that �� 85mm is thick, fine boring cutter carries out boring U-type groove circular arc face thick, smart by the present invention, and cutter radial force when cutting is changed into axially loaded. The circular arc of R42.5mm changes, by former Milling Process, the generation that boring processing it also avoid the line that shakes into.
Again with the face and side cutter milling U-type groove side of �� 200mm, avoid and process pivoted arm location seat U-type groove with �� 63mm slotting cutter and allow cutter and cause the phenomenon of 0.25mm step unshapeliness to occur.
When processing shelves in the seat of pivoted arm location, cutting of �� 200mm face and side cutter is 55mm deeply, it is possible to processing U-type groove side. But the width processing U-type groove is 85mm, and the shank diameter of the �� 200mm face and side cutter of standard is 90mm. The big 5mm of width of handle of a knife diameter ratio U-type groove does not go under causing cutterhead. Therefore shank diameter by the �� 200mm face and side cutter of standard removes 5.5mm by lathe, and the intensity so neither affecting cutter solves again the problem of processing pivoted arm location seat.
Compared with prior art, existing cutter, when not increasing new installation and frock clamp, just under original equipment and processing conditions, is improved, optimization processing technology by the present invention. The situation that working (machining) efficiency is low, product processing quality is unstable making former pivoted arm locate seat becomes working (machining) efficiency height, product processing quality qualification rate reaches 100%, meets the technical requirements of layout design completely, reaches the advanced level of international counterparts industry.
Below in conjunction with accompanying drawing, the present invention being described in detail, it illustrates the principle of the present invention as the part of this specification sheets by embodiment, and other aspects of the present invention, feature and advantage thereof are illustrated in detail by this will become very clear.
Accompanying drawing explanation
The accompanying drawing of the part forming the present invention is used to provide a further understanding of the present invention, and the schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.
Fig. 1 is subway framework pivoted arm location holder structure schematic diagram;
Fig. 2 is shelves schematic diagram in the seat of slotting cutter processing pivoted arm location;
Fig. 3 is slotting cutter processing pivoted arm location seat U shape groove schematic diagram;
Fig. 4 is boring cutter boring pivoted arm location seat U shape groove circular arc schematic diagram;
Fig. 5 is face and side cutter milling pivoted arm location seat U shape groove side schematic view;
Fig. 6 is shelves schematic diagram in the seat of face and side cutter milling pivoted arm location.
In figure: 1-circular arc face; 2-side; Shelves in 3-; 4-step; 5-boring cutter; 6-face and side cutter; 7-slotting cutter.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually. Below with reference to the accompanying drawings and come the present invention is described in detail in conjunction with the embodiments.
A kind of Type B subway framework pivoted arm location seat complete processing, it comprises the following steps:
1). with boring cutter 5 inside lateral, bore the circular arc face 1 of the U-type groove of pivoted arm location seat, as shown in Figure 4.
2). with face and side cutter 6 inside lateral, mill out the side 2 of described U-type groove, as shown in Figure 5;
3). with face and side cutter 6 from top to bottom, mill out described pivoted arm location seat interior shelves 3; Described in its handle of a knife diameter ratio of described face and side cutter 6, the groove width of U-type groove is little, as shown in Figure 6.
Above-mentioned boring cutter 5 is �� 85mm heavy boring cutter and �� 85mm fine boring cutter, first heavy boring, the boring of rear essence; Described face and side cutter 6 is �� 200mm face and side cutter.
Above-mentioned steps 2) in, the cutting speed of face and side cutter 6 is 300 ms/min, the amount of feed is 250 millis m/min.
After improving, the complete processing of new design not only solves the problem that the pivoted arm location seat of Type B subway framework cannot be processed at all, and quite desirable through the checking reliability produced in enormous quantities, working (machining) efficiency height. For No. 11, Shanghai line subway (ZMA100), altogether machined No. 11,631 Shanghai line subway (ZMA100) framework, the time of 4 hours required for former processing framework pivoted arm location seat, process a framework pivoted arm location seat by process improving and only need 1.5 hours, save 2.5 hours. Pricing: 631 �� 2.5 �� 22=34705 unit is produced by the one-tenth of 22 yuan/hour. A �� 63mm rapid steel slotting cutter can only process 3 frameworks, and blade is often 1860 yuan the unit price of slotting cutter, and each framework consumes cutter and takes 620 yuan; The face and side cutter sheet of a slice �� 200mm can process 5 frameworks, and the unit price of every sheet blade is 98.28 yuan, and each framework consumes cutter and takes 19.66 yuan. Each framework average is saved cutter and is taken 620-19.66=600.34 unit. Amount to saving cutter and take 600.34 �� 631=378814.54 unit. Seat located by processing No. 11, Shanghai line subway (ZMA100) framework pivoted arm, and this has just saved 631 �� 2.5=1577.5 hour man-hour, and 34705+378814.54=413519.54 unit of reducing expenses, economic benefit is huge.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a Type B subway framework pivoted arm location seat complete processing, it is characterised in that: comprise the following steps: 1). with boring cutter (5) inside lateral, bore the circular arc face (1) of the U-type groove of pivoted arm location seat; 2). with face and side cutter (6) inside lateral, mill out the side (2) of described U-type groove; 3). with face and side cutter (6) from top to bottom, mill out described pivoted arm location seat interior shelves (3); Described in its handle of a knife diameter ratio of described face and side cutter (6), the groove width of U-type groove is little.
2. Type B subway framework pivoted arm according to claim 1 location seat complete processing, it is characterised in that: described boring cutter (5) is �� 85mm heavy boring cutter and �� 85mm fine boring cutter, first heavy boring, the boring of rear essence; Described face and side cutter (6) is �� 200mm face and side cutter.
3. Type B subway framework pivoted arm according to claim 1 location seat complete processing, it is characterised in that: described step 2) in, the cutting speed of face and side cutter (6) is 300 ms/min, the amount of feed is 250 millis m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084883.9A CN103801901B (en) | 2014-03-10 | 2014-03-10 | A kind of Type B subway framework pivoted arm location seat complete processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084883.9A CN103801901B (en) | 2014-03-10 | 2014-03-10 | A kind of Type B subway framework pivoted arm location seat complete processing |
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| CN103801901A CN103801901A (en) | 2014-05-21 |
| CN103801901B true CN103801901B (en) | 2016-06-08 |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE10330881A1 (en) * | 2003-07-09 | 2005-01-27 | Ina-Schaeffler Kg | Method for producing an outer lever of a switchable rocker arm |
| CN101698411A (en) * | 2009-10-30 | 2010-04-28 | 长春轨道客车股份有限公司 | Butting structure of vertical plate and saddle of positioning seat of bogie and manufacturing method thereof |
| CN103042344A (en) * | 2011-10-12 | 2013-04-17 | 烟台金王礼品有限公司 | Manufacturing process for U-shaped connecting block |
| CN103071984A (en) * | 2013-01-09 | 2013-05-01 | 鞍钢重型机械有限责任公司 | Processing method for connecting rod |
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