CN102649170B - Drilling and positioning device of air inlet flange of four-hole type exhaust manifold and drilling and positioning method - Google Patents
Drilling and positioning device of air inlet flange of four-hole type exhaust manifold and drilling and positioning method Download PDFInfo
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- CN102649170B CN102649170B CN201210114382.1A CN201210114382A CN102649170B CN 102649170 B CN102649170 B CN 102649170B CN 201210114382 A CN201210114382 A CN 201210114382A CN 102649170 B CN102649170 B CN 102649170B
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Abstract
The invention discloses a drilling and positioning device of an air inlet flange of a four-hole type exhaust manifold and a drilling and positioning method. The drilling and positioning device disclosed by the invention is provided with a fixture body, wherein the bottom of a top plate of the fixture body is provided with a positioning plane for positioning the reference surface of an exhaust manifold, two single-hole positioning moulds, a double-hole positioning mould and a plurality of through holes which are respectively matched with the single-hole positioning moulds and the double-hole positioning mould are arranged on the top plate, the top plate is also provided with a drilling die hole for guiding the direction of a drill, and at least two sets of workpiece clamping mechanisms are arranged below the top plate; and according to the drilling and positioning method, the four air inlet holes of the exhaust manifold are used as a positioning reference. According to the drilling and positioning device and the drilling and positioning method which are disclosed by the invention, the accurate positioning of the air inlet flange of the exhaust manifold can be realized, the drilling quality is reliably ensured, and the large-scale production of the drilling and the positioning of the air inlet flanges of various exhaust manifolds is also realized by a simpler positioning device. The drilling and positioning device disclosed by the invention has a simple structure and low manufacturing cost and is convenient to operate.
Description
Technical field
The invention belongs to automobile engine production technical field, particularly a kind of quadrifora exhaust manifold inlet flange drilling-hole positioning device and drilling and positioning method.
Background technology
Exhaust manifold is the important supporting member of automobile engine exhaust system, its structure has the air inlet air flue corresponding with automobile engine cylinder exhaust outlet conventionally, its air inlet position is provided with inlet flange, and each inlet flange is connected with engine cylinder-body by connecting bolt; Gas outlet is connected with booster by the flange of giving vent to anger, the external exhaust main of booster.It is with as far as possible little exhaust resistance and noise that the major function of this gas extraction system requires, and waste gas in cylinder is discharged in atmosphere by exhaust manifold, exhaust main, catalyst, silencer.Therefore,, except requiring the exhaust passage of exhaust manifold inside to have higher body precision, the quality that exhaust manifold is connected with engine can affect performance and the exhaust emission standard of engine too.And, automobile engine is generally multi-cylinder parallel, its exhaust manifold have a plurality of inlet flanges respectively with the corresponding connection of each cylinder steam vent of engine, and the accuracy that exhaust manifold exhaust passage is communicated with cylinder steam vent depends on the Working position precision of connecting through hole on exhaust manifold inlet flange completely, on supply and exhaust manifold inlet flange, sizable difficulty is brought in the processing of connecting through hole location thus.The processing positioning method that described connecting through hole is traditional, adopts the mode of ruling on platform conventionally, then boring one by one on drilling machine.This processing positioning method is inefficiency not only, cannot adapt to the needs of exhaust manifold large-scale industrial production, and bore position precision is often difficult to guarantee because drill bit swings, and error is large, and qualification rate is low.At present, though have high efficiency Digit Control Machine Tool or machining center, not only self is expensive for this class process equipment, and must configuration rates at the import laser scanning device of tens0000 yuan, cause increasing of processing cost.
Summary of the invention
The object of this invention is to provide a kind of large-scale production that is applicable to various exhaust manifold inlet flange Drilling operations; registration, drilling quality is reliable, and production efficiency is high; and quadrifora exhaust manifold inlet flange drilling-hole positioning device simple in structure, cheap.
Another object of the present invention is to provide a kind of method that can carry out exhaust manifold inlet flange boring location on various drilling processing machine tools.
Realizing the technical scheme that object of the present invention takes is: a kind of quadrifora exhaust manifold inlet flange drilling-hole positioning device, there is a clamp body, the top board bottom of clamp body is provided for the plane of orientation of exhaust manifold datum level location, 2 single hole positioning clamping fixtures are set on top board, diplopore positioning clamping fixture and respectively with single hole positioning clamping fixture, a plurality of through holes that diplopore positioning clamping fixture coordinates, and be provided with the drill jig hole for drill bit guiding, top board below arranges at least 2 cover workpiece clamping mechanism, described single hole positioning clamping fixture has the core carcass of a T shape, the top of this core carcass is set with gland by centre bolt, between described gland and core carcass, holddown spring is set, the sidepiece of described core carcass axially arranges limit sliding chutes, the position-limitting pin that the sidepiece setting of gland coordinates with described limit sliding chutes, the bottom of described core carcass is provided with Y-axis locating detent, described bolt installs and is connected with described through hole respectively with Y-axis locating detent.
Described diplopore positioning clamping fixture have one long-armed, long-armed middle part is integrally formed with bearing pin, two ends are provided with X axis locating detent, bearing pin is set with gland by centre bolt, between gland and bearing pin, Compress Spring is set, the sidepiece of described bearing pin is provided with axial slide, the position-limitting pin that the sidepiece setting of gland coordinates with described limit sliding chutes, and described centre bolt installs and is connected with described through hole respectively with X axis locating detent.
Described workpiece clamping mechanism, by clamping fluid cylinder and briquetting forms, wherein, clamps fluid cylinder and is connected with the top board of clamp body by connecting pedestal, and briquetting is arranged on the telescopic end of clamping fluid cylinder by connecting support plate.
Described X axis locating detent and Y-axis locating detent respectively with the air admission hole corresponding matching at exhaust manifold two ends, on X axis locating detent and Y-axis locating detent, inclined-plane is all set.
An inlet flange drilling and positioning method, is that to take 4 air admission holes of exhaust manifold be positioning datum, and wherein 2 air admission holes adopt two point locations, and another 2 air admission holes adopt a point location, and described two point locations adopt described single hole positioning clamping fixture to position; A described point location adopts described diplopore positioning clamping fixture to position.
2 anchor points of described two point locations are positioned in the Y reference axis of exhaust manifold, and the anchor point of a point location is positioned in the X reference axis of exhaust manifold.
Described two point locations two air admission holes be positioned at the end positions of exhaust manifold, two air admission holes of a point location are positioned at the centre position of exhaust manifold.
Quadrifora exhaust manifold inlet flange drilling-hole positioning device of the present invention and drilling and positioning method; two air admission holes and two the middle air admission holes at exhaust manifold two ends of take are positioning datum; can realize the accurate location of exhaust manifold inlet flange; guarantee reliably drilling quality, and with comparatively simple positioner, realize the large-scale production of various exhaust manifold inlet flange Drilling operations.The advantages such as compared with prior art, drilling-hole positioning device of the present invention has simple in structure, cheap, easy to operate.This positioner and boring method are specially adapted to the Drilling operation of 4 cylinders or the non-circular air flue exhaust manifold of 6 Cylinder engines inlet flange.
Accompanying drawing explanation
Fig. 1 is the structural representation of quadrifora exhaust manifold inlet flange drilling-hole positioning device in the present invention;
Fig. 2 is the structural representation of diplopore positioning clamping fixture in Fig. 1;
Fig. 3 is the structural representation of single hole positioning clamping fixture in Fig. 1;
Fig. 4 is the structural representation of exhaust manifold in the present invention.
The specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, quadrifora exhaust manifold inlet flange drilling-hole positioning device of the present invention, have a clamp body 1, top board 3 bottoms of clamp body 1 arrange plane of orientation 3-1, for exhaust manifold positioning reference plane---and the Z-axis direction location of inlet flange end face.A plurality of through holes that 2 single hole positioning clamping fixtures 9, a diplopore positioning clamping fixture 8 are set on top board 3 and coordinate with single hole positioning clamping fixture 9, diplopore positioning clamping fixture 8 respectively, and being provided with the drill jig hole 3-1 for drill bit guiding, top board 3 belows arrange at least 2 covers for treating the workpiece clamping mechanism being fixedly clamped of drill workpiece.
Described single hole positioning clamping fixture 9 has the core carcass 20 of a T shape, and this core carcass 20 top is set with gland 21 by centre bolt 19, and core carcass 20 is slidably matched with gland 21, between described gland 21 and core carcass 20, holddown spring 22 is set.The sidepiece of described core carcass 20 is axially arranged with limit sliding chutes 23, the position-limitting pin 24 that the sidepiece setting of gland 21 coordinates with described limit sliding chutes 23, and like this, gland 21 can move to axial with core carcass 20, and can not relatively rotate.Described core carcass 20 bottom is provided with Y-axis locating detent 18, and described bolt 19 installs and is connected with described top board 3 respectively with Y-axis locating detent 18, and described Y-axis locating detent 18 stretches out outside top board 3, and coordinates with the air admission hole at exhaust manifold two ends respectively.Like this, by bolt 19, described single hole positioning clamping fixture 9 is fixedly mounted on top board 3, and makes described core carcass 20 all the time in elastic compression state.
Described diplopore location tire 8 tools are for the X axis location of exhaust manifold to be holed, it have one long-armed 11, long-armed 11 middle part is integrally formed with bearing pin 15， two ends and is provided with X axis locating detent 10.Bearing pin 15 is set with gland 16 by centre bolt 17, between gland 16 and bearing pin 15, Compress Spring 14 is set.The sidepiece of described bearing pin 15 is axially arranged with chute 13, the position-limitting pin 12 that the sidepiece setting of gland 16 coordinates with described chute 13, gland 16 can move up and down relatively with bearing pin 15, but can not rotate, to keep two pawls of X axis locating detent 10 to be positioned at all the time on the axis of exhaust manifold air admission hole.Described centre bolt 17 installs and is connected with described top board 3 respectively with X axis locating detent 10, and by centre bolt 17, X axis positioning clamping fixture 8 is fixedly connected on top board 3.The X axis locating detent 10 at two ends stretches out outside top board 3, and respectively with exhaust manifold in the middle of adjacent two air admission hole corresponding matching, for the X axis location of exhaust manifold air admission hole.The arranged outside inclined-plane of described X axis locating detent 10 and Y-axis locating detent 18, to be easy to enter exhaust manifold air inlet, and closely cooperates with exhaust manifold air inlet, for the Y-axis location of exhaust manifold air admission hole.
Described workpiece clamping mechanism is fixed for the clamping of exhaust manifold to be holed, it forms by clamping fluid cylinder 6 and briquetting 4, wherein, clamp fluid cylinder 6 and be connected with the top board of clamp body 1 by connecting pedestal 7, briquetting 4 is arranged on by connecting support plate 5 telescopic end that clamps fluid cylinder 6.
In conjunction with Fig. 1, Fig. 2, Fig. 3 referring to Fig. 4, exhaust manifold inlet flange drilling and positioning method of the present invention, be that to take 4 air admission holes of exhaust manifold 25 be positioning datum, wherein 2 of two ends air admission holes adopt 2: 29,30 and 31,32 location, and 2 middle air admission holes adopt 1: 26 and 27 location.Concrete grammar is: described clamp body 1 is fixed on the workbench of radial drilling machine or machining center, then the end face of exhaust manifold to be holed 25 inlet flanges 28 is adjacent to upward on described plane of orientation 3-1, with this, realize the Z reference axis location of exhaust manifold 25.Meanwhile, the air admission hole at exhaust manifold 25 two ends is coordinated respectively with described single hole positioning clamping fixture 9, and two pawls of Y-axis locating detent 18 are positioned in the Y reference axis of exhaust manifold relatively; 2 middle air admission holes coordinate with described diplopore positioning clamping fixture 8, and its two pawl is positioned in the X reference axis of exhaust manifold 25, and exhaust manifold 25 each inlet flanges 28 are accurately located thus.Then, start described clamping fluid cylinder 6, by described briquetting 4, exhaust manifold 25 is compressed, just can utilize according to a conventional method described drill jig hole to carry out the boring of inlet flange.
Claims (7)
1. a quadrifora exhaust manifold inlet flange drilling-hole positioning device, it is characterized in that: it has a clamp body, the top board bottom of clamp body is provided for the plane of orientation of exhaust manifold datum level location, 2 single hole positioning clamping fixtures are set on top board, diplopore positioning clamping fixture and respectively with single hole positioning clamping fixture, a plurality of through holes that diplopore positioning clamping fixture coordinates, and be provided with the drill jig hole for drill bit guiding, top board below arranges at least 2 cover workpiece clamping mechanism, described single hole positioning clamping fixture has the core carcass of a T shape, the top of this core carcass is set with gland by centre bolt, between described gland and core carcass, holddown spring is set, the sidepiece of described core carcass axially arranges limit sliding chutes, the position-limitting pin that the sidepiece setting of gland coordinates with described limit sliding chutes, the bottom of described core carcass is provided with Y-axis locating detent, described bolt installs and is connected with described through hole respectively with Y-axis locating detent.
2. quadrifora exhaust manifold inlet flange drilling-hole positioning device as claimed in claim 1, it is characterized in that: described diplopore positioning clamping fixture have one long-armed, long-armed middle part is integrally formed with bearing pin, two ends are provided with X axis locating detent, bearing pin is set with gland by centre bolt, between gland and bearing pin, Compress Spring is set, the sidepiece of described bearing pin is provided with axial slide, the position-limitting pin that the sidepiece setting of gland coordinates with described limit sliding chutes, described centre bolt installs and is connected with described through hole respectively with X axis locating detent.
3. quadrifora exhaust manifold inlet flange drilling-hole positioning device as claimed in claim 1, it is characterized in that: described workpiece clamping mechanism is by clamping fluid cylinder and briquetting forms, wherein, clamp fluid cylinder and be connected with the top board of clamp body by connecting pedestal, briquetting is arranged on by connecting support plate the telescopic end that clamps fluid cylinder.
4. quadrifora exhaust manifold inlet flange drilling-hole positioning device as claimed in claim 2, it is characterized in that: described X axis locating detent and Y-axis locating detent respectively with the air admission hole corresponding matching at exhaust manifold two ends, on X axis locating detent and Y-axis locating detent, inclined-plane is all set.
5. a method that adopts in claim 1-4 quadrifora exhaust manifold inlet flange drilling-hole positioning device described in any one to carry out exhaust manifold inlet flange boring location, it is characterized in that: it is that to take 4 air admission holes of exhaust manifold be positioning datum, wherein 2 air admission holes adopt two point locations, another 2 air admission holes adopt a point location, and described two point locations adopt single hole positioning clamping fixture to position; A described point location adopts diplopore positioning clamping fixture to position.
6. exhaust manifold inlet flange drilling and positioning method as claimed in claim 5, is characterized in that: 2 anchor points of described two point locations are positioned in the Y reference axis of exhaust manifold, and the anchor point of a point location is positioned in the X reference axis of exhaust manifold.
7. exhaust manifold inlet flange drilling and positioning method as claimed in claim 5, is characterized in that: described two point locations two air admission holes be positioned at the end positions of exhaust manifold, two air admission holes of a point location are positioned at the centre position of exhaust manifold.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210114382.1A CN102649170B (en) | 2012-04-18 | 2012-04-18 | Drilling and positioning device of air inlet flange of four-hole type exhaust manifold and drilling and positioning method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210114382.1A CN102649170B (en) | 2012-04-18 | 2012-04-18 | Drilling and positioning device of air inlet flange of four-hole type exhaust manifold and drilling and positioning method |
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| CN102649170A CN102649170A (en) | 2012-08-29 |
| CN102649170B true CN102649170B (en) | 2014-01-15 |
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| CN201210114382.1A Active CN102649170B (en) | 2012-04-18 | 2012-04-18 | Drilling and positioning device of air inlet flange of four-hole type exhaust manifold and drilling and positioning method |
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| CN106514384A (en) * | 2016-12-28 | 2017-03-22 | 河南省西峡汽车水泵股份有限公司 | Processing fixture for connecting holes of heat shield of exhaust manifold |
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2012
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| US2825249A (en) * | 1955-01-17 | 1958-03-04 | Western Electric Co | Drill jig for wave guide flanges |
| CN201010328Y (en) * | 2006-12-31 | 2008-01-23 | 王树生 | Locator |
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Address after: 474500 Donghuan Road Industrial Park, Xixia County, Nanyang City, Henan Province Patentee after: Feilong Automotive Parts Co., Ltd. Address before: 474500 Donghuan Road Industrial Park, Xixia County, Nanyang City, Henan Province Patentee before: Xixia Automobile Water Pump Co., Ltd., Henan Prov. |
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