CN100468251C - Accurate positioning processing method of IC engine airframe intermediary hole - Google Patents

Accurate positioning processing method of IC engine airframe intermediary hole Download PDF

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Publication number
CN100468251C
CN100468251C CNB2007101777116A CN200710177711A CN100468251C CN 100468251 C CN100468251 C CN 100468251C CN B2007101777116 A CNB2007101777116 A CN B2007101777116A CN 200710177711 A CN200710177711 A CN 200710177711A CN 100468251 C CN100468251 C CN 100468251C
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mesoporous
coordinate
mesopore
accurate positioning
hole
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CN101158863A (en
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陈明
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Beijing Erqi Railway Transportation Equipment Co Ltd
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Beijing Erqi Railway Transportation Equipment Co Ltd
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Abstract

The invention relates to a precise positioning and machining method for an intermediate mesopore of an internal combustion engine body. The invention comprises the following step: first, a spindle hole, a main mesopore and a camshaft bore are machined on a lath; second, for the machined spindle hole, the main mesopore and the camshaft bore, the coordinate value (X1, Y1) on the body from the main mesopore to the zero point, and the coordinate value(X2,Y2) of the camshaft bore on the body to the aero point are separately measured taking the coordinate of the spindle hole as the aero point; third, the coordinate value of the intermediate mesopore on the body is set as (X, Y), and the measured main mesopore coordinate value (X1,Y1) and the camshaft bore coordinate value (X1,Y2) are provided into the precision positioning equation of the intermediate mesopore; fourth, the precision positioning coordinate value (X, Y) of the intermediate mesopore obtained from the third step is of the actual coordinate of the intermediate mesopore and the intermediate mesopore is machined; fifth, the hole distances between the main mesopore and the intermediate mesopore and between the camshaft bore and the intermediate mesopore are measured by a micrometer. The calculated coordinate value is verified and the machining for the intermediate mesopore is completed.

Description

Mesoporous accurate positioning and processing method in a kind of internal combustion (IC) engine airframe
Technical field
The present invention relates to a kind of processing positioning method, particularly about accurate positioning and processing method mesoporous in a kind of internal combustion (IC) engine airframe.
Background technology
In the machining of reality, often exist a lot of problems that influence crudy, such as mesoporous 1 (as shown in Figure 1) in C11C (diesel locomotive body model) body, process the influence that just was subjected to master mesoporous 2 and camshaft hole 3 in this at mesoporous 1 o'clock at the use boring machine, in mesoporous 1 position to satisfy and main mesoporous 2 and camshaft hole 3 centre distance requirements the uncertainty of mesoporous 1 position during this situation has caused simultaneously.In the existing process, the operator generally wants earlier in hole of desirable position heavy boring, measured hole distance then, again according to the position row adjustment of deviation to this hole, finally reach technological requirement, mesoporous 1 working (machining) efficiency was very low during this made, and had influenced the efficient of whole machine body processing.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide accurate positioning and processing method mesoporous in a kind of internal combustion (IC) engine airframe.
For achieving the above object, the present invention takes following technical scheme: mesoporous accurate positioning and processing method in a kind of internal combustion (IC) engine airframe may further comprise the steps: (1) machines spindle hole, main mesoporous and camshaft hole on lathe; (2) to processing the body of spindle hole, main mesoporous and camshaft hole, be zero point with the coordinate at spindle hole center, measure the coordinate figure (X at zero point of main mesoporous arrival on the body respectively 1, Y 1), body overhead cam axis hole arrives the coordinate figure (X at zero point 2, Y 2); (3) in establishing on the body mesoporous coordinate figure for (X, Y), with the mesoporous coordinate figure (X of the master who measures 1, Y 1) and camshaft hole coordinate figure (X 1, Y 2) bring in mesoporous accurate positioning equation:
X = L 1 2 - Y 2 Y = - b + b 2 - 4 ac 2 a ;
A=4 ((X wherein 1-X 2) 2+ (Y 1-Y 2) 2)
b＝4(Y 1-Y 2)[((X 1-X 2) 2+(Y 1-Y 2) 2)-(L 2 2-L 1 2)]
c＝[((X 1-X 2) 2+(Y 1-Y 2) 2)-(L 2 2-L 1 2)] 2-4(X 1-X 2) 2×L 1 2
L wherein 1Need mesoporous and the centre distance of leading between mesoporous, L in the location 2Need the centre distance between the mesoporous and camshaft hole in the location; (4) with accurate elements of a fix value mesoporous in obtaining through step (3) (X, Y) be in mesoporous actual coordinate, centering is mesoporous processes; (5) with the miking master mesoporous and in pitch-row between mesoporous and camshaft hole and in mesoporous pitch-row, the coordinate figure that verification is calculated, mesoporous processing in finishing.
Mesoporous accurate positioning equation in the described step 3 obtains in the following ways:
(X is Y) with the mesoporous coordinate figure (X of master that measures for coordinate figure mesoporous at first 1, Y 1) and camshaft hole coordinate figure (X 1, Y 2) satisfy following the relation:
(X—X 1) 2—(Y—Y 1) 2＝L 1 2
(X—X 2) 2—(Y—Y 2) 2＝L 2 2 (1)
Obtain by equation (1):
( X - X 1 ) 2 + ( Y - Y 1 ) 2 = L 1 ( X - X 2 ) 2 + ( Y - Y 2 ) 2 = L 2 - - - ( 2 )
The introducing procedure parameter in the process of solving an equation:
X′＝X 1-X 2 Y′＝Y 1-Y 2
m＝(X′ 2+Y′ 2)-(L 2 2-L 1 2)
a＝4(X′ 2+Y′ 2) b＝4Y′m c＝m 2-4X′ 2L 1 2
Obtain: a=4 ((X 1-X 2) 2+ (Y 1-Y 2) 2)
b＝4(Y 1-Y 2)[((X 1-X 2) 2+(Y 1-Y 2) 2)-(L 2 2-L 1 2)]
c＝[((X 1-X 2) 2+(Y 1-Y 2) 2)-(L 2 2-L 1 2)] 2-4(X 1-X 2) 2×L 1 2
Bring a, b, c into formula (2), mesoporous accurate positioning equation in just can obtaining:
X = L 1 2 - Y 2 Y = - b + b 2 - 4 ac 2 a - - - ( 3 )
The present invention is owing to take above technical scheme, and it has the following advantages: 1, the present invention is owing to mesoporous accurate positioning equation in having provided, and therefore in process, mesoporous accurate coordinates value in can obtaining has quickly and easily improved process velocity effectively.2, the present invention can with in mesoporous accurate positioning equation import computing machine in advance, add the actual coordinate value input computing machine that only needs the master who measures is mesoporous and camshaft hole man-hour, just result of calculation accurately can be obtained apace, therefore processing precision of products can be improved effectively.The inventive method is simple and direct, convenient, and it can be widely used in the process mesoporous in the internal combustion (IC) engine airframe, according to the ultimate principle of the inventive method, can also be generalized in the application in other field simultaneously.
Description of drawings
Fig. 1 uses the workpiece that the inventive method is made
Embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
The inventive method is based on (as shown in Figure 1) that following design is set up:
At first be familiar with the body drawing, working position and undressed position under mesoporous 1 manufacturing procedure of centering and add the relation at workpiece zero point in man-hour and the relativeness between them is analyzed, reach a conclusion: in the idle wheel installed on mesoporous 1 in use play the conduction moment of torsion, so in mesoporous 1 more important than the relative position relation of it and spindle hole 4 (workpiece zero point) with the relativeness of master of both sides mesoporous 2 and camshaft hole 3, because the cumulative errors that exists in the operation of front, in mesoporous 1 and the relativeness at workpiece zero point do not fix, so can not directly position processing according to desirable coordinate figure centering mesoporous 1, mesoporous 1 position was it and the master mesoporous 2 who has processed and the relativeness of camshaft hole 3 during unique energy was determined, and main mesoporous 2 and camshaft hole 3 with respect to the coordinate at workpiece zero point be two can reference value, intersect unique principle and body drawing of determining at 2 according to two circles, can be by mathematical operation, mesoporous 1 coordinate in calculating.
Based on above-mentioned design, mesoporous accurate positioning and processing method in a kind of internal combustion (IC) engine airframe that the present invention proposes may further comprise the steps:
1, at first on lathe, machines spindle hole 4, master mesoporous 2 and camshaft hole 3;
2, to processing spindle hole 4, main mesoporous 2 and the body of camshaft hole 3, be zero point with the coordinate at spindle hole 4 centers, measure on the body the main mesoporous 2 coordinate figure (X that arrive zero point respectively 1, Y 1), body overhead cam axis hole 3 arrives the coordinate figure (X at zero point 2, Y 2);
3, in establishing on the body mesoporous coordinate figure for (X, Y), with the mesoporous coordinate figure (X of the master who measures 1, Y 1) and camshaft hole coordinate figure (X 1, Y 2) bring in mesoporous accurate positioning equation:
X = L 1 2 - Y 2 Y = - b + b 2 - 4 ac 2 a
Wherein: a=4 ((X 1-X 2) 2+ (Y 1-Y 2) 2)
b＝4(Y 1-Y 2)[((X 1-X 2) 2+(Y 1-Y 2) 2)-(L 2 2-L 1 2)]
c＝[((X 1-X 2) 2+(Y 1-Y 2) 2)-(L 2 2-L 1 2)] 2-4(X 1-X 2) 2×L 1 2
L wherein 1Need the centre distance between mesoporous 1 and main mesoporous 2 in the location, L 2Need in the location mesoporous 1 and camshaft hole 3 between centre distance;
4, with mesoporous 1 accurate elements of a fix value in obtaining through step 3 (X, Y) be in mesoporous 1 actual coordinate, centering mesoporous 1 is processed;
5, with miking master mesoporous 2 and in pitch-row between mesoporous 1 and camshaft hole 3 with in mesoporous 1 pitch-row, the coordinate figure that verification is calculated, mesoporous 1 processing in finishing.
Mesoporous accurate positioning equation in the above-mentioned steps 3 obtains in the following ways:
(X is Y) with the mesoporous coordinate figure (X of master that measures for mesoporous 1 coordinate figure at first 1, Y 1) and camshaft hole coordinate figure (X 1, Y 2) satisfy following the relation:
(X—X 1) 2—(Y—Y 1) 2＝L 1 2
(X—X 2) 2—(Y—Y 2) 2＝L 2 2 (1)
Obtain by equation (1):
( X - X 1 ) 2 + ( Y - Y 1 ) 2 = L 1 ( X - X 2 ) 2 + ( Y - Y 2 ) 2 = L 2 - - - ( 2 )
This shows:
X＝f 1(X 1，Y 1，X 2，Y 2，L 1，L 2)
Y＝f 2(X 1，Y 1，X 2，Y 2，L 1，L 2)
The introducing procedure parameter in the process of solving an equation:
X′＝X 1-X 2 Y′＝Y 1-Y 2
m＝(X′ 2+Y′ 2)-(L 2 2-L 1 2)
a＝4(X′ 2+Y′ 2) b＝4Y′m c＝m 2-4X′ 2L 1 2
Obtain: a=4 ((X 1-X 2) 2+ (Y 1-Y 2) 2)
b＝4(Y 1-Y 2)[((X 1-X 2) 2+(Y 1-Y 2) 2)-(L 2 2-L 1 2)]
c＝[((X 1-X 2) 2+(Y 1-Y 2) 2)-(L 2 2-L 1 2)] 2-4(X 1-X 2) 2×L 1 2
Bring a, b, c into formula (2), mesoporous accurate positioning equation in just can obtaining:
X = L 1 2 - Y 2 Y = - b + b 2 - 4 ac 2 a - - - ( 3 )
The present invention is operation for convenience, formula and computation process can be made into software input computing machine, when needing, and coordinate figure main mesoporous 2 and the coordinate figure of camshaft hole input computing machine, mesoporous accurate coordinates value in promptly can obtaining.
Be a specific embodiment below:
As shown in Figure 2, to processing spindle hole 4, main mesoporous 2 and the body of camshaft hole 3, be zero point with the coordinate at spindle hole 4 centers, measure on the body the main mesoporous 2 coordinate figure (X that arrive zero point respectively 1, Y 1), body overhead cam axis hole 3 arrives the coordinate figure (X at zero point 2, Y 2); In mesoporous 1 with main mesoporous 2 centre distance be 290mm, in mesoporous 1 with the centre distance position 250mm of camshaft hole 3, mesoporous coordinate in then (X Y) is respectively:
X = 290 2 - Y 2 Y = - b + b 2 - 4 ac 2 a
Wherein: a=4 ((X 1-X 2) 2+ (Y 1-Y 2) 2)
b＝4(Y 1-Y 2)[((X 1-X 2) 2+(Y 1-Y 2) 2)-(250 2-290 2)]
c＝[((X 1-X 2) 2+(Y 1-Y 2) 2)-(250 2-290 2)] 2-4(X 1-X 2) 2×290 2
The master of known concrete measurement mesoporous 2 is arrived the coordinate figure (X at zero point 1, Y 1) and body overhead cam axis hole 3 arrive the coordinate figure (X at zero point 2, Y 2) bring a, b, c equation into, just can solve the value of constant a, b, c, again with a, b, c formula (3) in just can obtaining mesoporous accurate coordinates value (X Y), utilizes computerese to work out out calculation procedure, can be easy to calculate X and Y value.

Claims (3)

1, mesoporous accurate positioning and processing method in a kind of internal combustion (IC) engine airframe may further comprise the steps:
(1) on lathe, machines spindle hole, main mesoporous and camshaft hole;
(2) to processing the body of spindle hole, main mesoporous and camshaft hole, be zero point with the coordinate at spindle hole center, measure the coordinate figure (X at zero point of main mesoporous arrival on the body respectively 1, Y 1), body overhead cam axis hole arrives the coordinate figure (X at zero point 2, Y 2);
(3) in establishing on the body mesoporous coordinate figure for (X, Y), with the mesoporous coordinate figure (X of the master who measures 1, Y 1) and camshaft hole coordinate figure (X 1, Y 2) bring in mesoporous accurate positioning equation:
X = L 1 2 - Y 2 Y = - b + b 2 - 4 ac 2 a ;
Wherein: a=4 ((X 1-X 2) 2+ (Y 1-Y 2) 2)
b＝4(Y 1-Y 2)[((X 1-X 2) 2+(Y 1-Y 2) 2)-(L 2 2-L 1 2)]
c＝[((X 1-X 2) 2+(Y 1-Y 2) 2)-(L 2 2-L 1 2)] 2-4(X 1-X 2) 2×L 1 2
L wherein 1Need mesoporous and the centre distance of leading between mesoporous, L in the location 2Need the centre distance between the mesoporous and camshaft hole in the location;
(4) with accurate elements of a fix value mesoporous in obtaining through step (3) (X, Y) be in mesoporous actual coordinate, centering is mesoporous processes;
(5) with the miking master mesoporous and in centre distance between mesoporous and camshaft hole and in centre distance between mesoporous, the coordinate figure that verification is calculated, mesoporous processing in finishing.
2, mesoporous accurate positioning and processing method in a kind of internal combustion (IC) engine airframe as claimed in claim 1 is characterized in that: mesoporous accurate positioning equation in the described step (3) obtains in the following ways:
At first, (X is Y) with the mesoporous coordinate figure (X of master that measures for coordinate figure mesoporous in 1, Y 1) and camshaft hole coordinate figure (X 1, Y 2) satisfy following the relation:
(X—X 1) 2—(Y—Y 1) 2＝L 1 2
(X—X 2) 2—(Y—Y 2) 2＝L 2 2 (1)
Obtain by equation (1):
( X - X 1 ) 2 + ( Y - Y 1 ) 2 = L 1 ( X - X 2 ) 2 + ( Y - Y 2 ) 2 = L 2 - - - ( 2 )
The introducing procedure parameter in the process of solving an equation:
X′＝X 1-X 2 Y′＝Y 1-Y 2
m＝(X′ 2+Y′ 2)-(L 2 2-L 1 2)
a＝4(X′ 2+Y′ 2) b＝4Y′m c＝m 2-4X′ 2L 1 2
Obtain: a=4 ((X 1-X 2) 2+ (Y 1-Y 2) 2)
b＝4(Y 1-Y 2)[((X 1-X 2) 2+(Y 1-Y 2) 2)-(L 2 2-L 1 2)]
c＝[((X 1-X 2) 2+(Y 1-Y 2) 2)-(L 2 2-L 1 2)] 2-4(X 1-X 2) 2×L 1 2
Bring a, b, c into formula (2), mesoporous accurate positioning equation in just can obtaining:
X = L 1 2 - Y 2 Y = - b + b 2 - 4 ac 2 a - - - ( 3 ) .
3, mesoporous accurate positioning and processing method in a kind of internal combustion (IC) engine airframe as claimed in claim 1 is characterized in that: mesoporous accurate positioning equation in described is compiled into software, the input computing machine.
CNB2007101777116A 2007-11-20 2007-11-20 Accurate positioning processing method of IC engine airframe intermediary hole Expired - Fee Related CN100468251C (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102179729A (en) * 2011-04-13 2011-09-14 南车戚墅堰机车有限公司 Online camshaft measuring and machining process
CN110293239B (en) * 2019-07-18 2020-05-12 中船动力有限公司 Method for processing transmission gear hole system of medium-speed diesel engine frame
CN110695763A (en) * 2019-08-14 2020-01-17 河南柴油机重工有限责任公司 Machining method for transmission shaft hole of high-power diesel engine body

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
对北京型机车凸轮轴中间轴承座定位孔位置的探讨. 张能孝.内燃机车，第2期. 2000
对北京型机车凸轮轴中间轴承座定位孔位置的探讨. 张能孝.内燃机车，第2期. 2000 *

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