CN110509011A - A kind of method of cylinder flange hole machined and assembling - Google Patents

A kind of method of cylinder flange hole machined and assembling Download PDF

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Publication number
CN110509011A
CN110509011A CN201910812206.7A CN201910812206A CN110509011A CN 110509011 A CN110509011 A CN 110509011A CN 201910812206 A CN201910812206 A CN 201910812206A CN 110509011 A CN110509011 A CN 110509011A
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CN
China
Prior art keywords
cylinder
burner
liner
tube head
positioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910812206.7A
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Chinese (zh)
Inventor
司松社
邵志宏
李晓燕
王忠仁
霍潮峰
张朝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AECC Aviation Power Co Ltd
Original Assignee
AECC Aviation Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AECC Aviation Power Co Ltd filed Critical AECC Aviation Power Co Ltd
Priority to CN201910812206.7A priority Critical patent/CN110509011A/en
Publication of CN110509011A publication Critical patent/CN110509011A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Abstract

The invention discloses the method for a kind of cylinder flange hole machined and assembling, after 1. burner inner liner inner wall cylinders and the molding of outer wall cylinder, processing obtains bottom outlet;2. bottom outlet carries out flange, flange direction is towards on the outside of cylinder;3. pair flame tube head and burner inner liner inner wall cylinder and outer wall cylinder end face to be welded are carried out with vehicle;4. erection welding flame tube head and burner inner liner inner wall cylinder, each primary holes of burner inner liner inner wall are all made of positioning pin and are run through, carried out positioning;5. erection welding flame tube head and flame drum outer wall cylinder, the primary holes of the corresponding overlapping in every two position, carried out positioning;6. after flame tube head is combined with cylinder, when carrying out the Vehicle Processing of inside and outside support ring, in burner inner liner inner wall cylinder and outer wall cylinder, the primary holes of the corresponding overlapping of eight group of two two positions carried out positioning, and determined the cutting position of inside and outside support ring.Guarantee the self-position precision of the inside and outside wall flanging bore of burner inner liner.

Description

A kind of method of cylinder flange hole machined and assembling
Technical field
The invention belongs to aero-engine manufacturing fields, are related to the method for a kind of cylinder flange hole machined and assembling.
Background technique
The metal plate weldering inside and outside wall of becate burner inner liner belongs to thin-wall part, is all added using high-temperature material metal plate postwelding machine, front end with Flame tube head is connected using electron beam welding, and rear end and the inside and outside support ring of burner inner liner use resistance solder design, forms becate Shape burner inner liner.
Traditional machining processes method is influenced by thin-walled metal plate weld-ring shape flame tube structure, cannot preferably eliminate the burner inner liner There are problems that Reference Transforming error, processing accumulated error, welding deformation and machining deformation, it is same to easily lead to the inside and outside wall of burner inner liner The inside and outside height of the primary holes of one height, blending hole is inconsistent, and position degree is overproof, influences product quality, leads to burner inner liner temperature Field test is not able to satisfy design requirement.It is thus impossible to using.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, a kind of cylinder flange hole machined and assembling are provided Method can guarantee the self-position precision of the inside and outside wall flanging bore of burner inner liner, improve product quality.
In order to achieve the above objectives, the present invention is achieved by the following scheme:
A kind of method of cylinder flange hole machined and assembling, includes the following steps;
After step 1, burner inner liner inner wall cylinder and the molding of outer wall cylinder, to burner inner liner inner wall cylinder and outer wall cylinder circumferential surface It is processed, obtains bottom outlet;
Step 2 carries out flange to the bottom outlet on burner inner liner inner wall cylinder and outer wall cylinder, and flange direction is towards outside cylinder Side;
Step 3 carries out with vehicle flame tube head and burner inner liner inner wall cylinder and outer wall cylinder end face to be welded;
Step 4, erection welding flame tube head and burner inner liner inner wall cylinder, before welding, the main combustion of each of burner inner liner inner wall Hole is all made of positioning pin and is run through, and carries out positioning, by taking out positioning pin after the completion of welding;
Step 5, erection welding flame tube head and flame drum outer wall cylinder, before welding, outside burner inner liner inner wall and burner inner liner In wall, the primary holes of the corresponding overlapping in every two position is all made of a positioning pin and is run through, carried out positioning, and welding is completed Soldered flame tube head and burner inner liner inner wall cylinder and outer wall cylinder are taken out afterwards;
Step 6 carries out the vehicle of inside and outside support ring after flame tube head is combined with burner inner liner inner wall cylinder and outer wall cylinder When processing, in burner inner liner inner wall cylinder and outer wall cylinder, the primary holes of the corresponding overlapping of eight group of two two positions is all made of a positioning Pin is run through, and positioning is carried out, to directly determine the cutting position of inside and outside support ring.
Preferably, it in step 1, after burner inner liner inner wall cylinder and the molding of outer wall cylinder, is corrected using hydraulic bulging.
Preferably, in step 1, using core expansion type drilling tool, by the way of drilling and bore hole, to burner inner liner inner wall cylinder With outer wall cylinder machined bottom.
Preferably, adjacent with its left and right when burner inner liner inner wall cylinder and outer wall cylinder bottom outlet flange processing in step 2 The nearest bottom outlet of distance or common cross of flanging bore progress position in bottom outlet or flanging bore and one round of front and back, carry out flange.
Preferably, in step 3, flame tube head and burner inner liner inner wall cylinder and outer wall cylinder end face to be welded are matched Vehicle makes flame tube head and the inside and outside wall cylinder electron beam butt weld welding contracted quantity 0.1mm~0.15mm of burner inner liner.
Preferably, in step 4 and step 5, using the rigidity with flame tube head swirler mounting base end face with size Part compresses flame tube head swirler mounting base end face.
Preferably, after the completion of step 5, before entering step six, in soldered flame tube head and burner inner liner In wall cylinder and outer wall cylinder, in burner inner liner inner wall and flame drum outer wall, the primary holes of the corresponding overlapping in every two position is adopted Run through with a positioning pin, carried out positioning, then carries out vacuum heat treatment.
Preferably, Step 4: in step 5 and step 6, when crossing positioning, with flame tube head swirler mounting base end face Positioning.
Preferably, in step 6, using burner inner liner inside support ring external centring.
Preferably, Step 4: in step 5 and step 6, when crossing positioning, positioning pin passes through all flanging bores.
Compared with prior art, the invention has the following advantages:
The present invention, which is utilized, eliminates dimensional tolerance accumulation in part process with driving skills art, uses positioning welding control fire The inside and outside wall primary holes of flame cylinder and blending hole location precision, eliminate processing accumulated error, reduce welding deformation and machining deformation, Lifting assembly process positioning accuracy is positioned using crossing in the Combined machining stage, will guarantee flange hole location indirectly, is become Directly to position, the position of flanging bore and inside and outside support ring is directly measured, eliminates Reference Transforming error and size accumulated error, Strong operability, stable product quality.
Further, it is corrected by hydraulic bulging, ensure that burner inner liner inner wall cylinder and outer wall cylinder roundness, to improve flange Bottom outlet Working position precision.
Further, it is positioned using three holes around the hole for needing flange, forms common cross in three holes and positions, it can be ensured that The inside and outside wall parts flanged-edge hole wall of burner inner liner is vertical with tubular axis, guarantees burner inner liner inner wall cylinder and outer wall cylinder flange hole location Degree of setting.
Further, using rigid member, flame tube head swirler mounting base end face is compressed, passes pressing force rigidly It passs, part is avoided to compress deformation.
Further, after by carrying out positioning to primary holes, vacuum heat treatment is carried out, is eliminating burner inner liner welding stress Meanwhile guaranteeing that the primary holes of burner inner liner inner wall cylinder and outer wall cylinder is in sustained height position.
Detailed description of the invention
Fig. 1 is burner inner liner half section structure diagram of the invention;
Fig. 2 is burner inner liner inwall processing bottom outlet schematic diagram of the invention;
Fig. 3 is flame drum outer wall flange bottom outlet schematic diagram of the invention;
Fig. 4 is that flame tube head and inner wall of the invention weld schematic diagram;
Fig. 5 is that flame tube head and outer wall of the invention weld schematic diagram.
Wherein: 1- inner wall cylinder;2- outer wall cylinder;3- primary holes;4- blending hole;5- flame tube head.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
As shown in Figure 1, being the half section structure diagram of burner inner liner, which is that metal plate welds becate burner inner liner, in burner inner liner, 3 row's flanging bores, respectively 1 row's primary holes 3,2 row's blending holes 4 are dispersed on outer wall.Every row's flange hole number is 24, this 3 Row's flanging bore will guarantee the theoretical level size and location degree φ 0.5mm requirement at its center to the face inside support ring benchmark A, B.It is set Counting structure influences, and the burner inner liner inside support ring face benchmark A, B finally could determine and be formed to when final combination Vehicle Processing.
Inside support ring benchmark A is that inside support ring installs inner hole central axis, and the face benchmark B is that end face is installed in inside support ring, 5 swirler mounting base end face of flame tube head is the face benchmark D, and 5 swirler mounting base central axis of flame tube head is C benchmark, C Benchmark determines burner inner liner inside and outside wall flanging bore and the 5 angular relationship in swirler mounting base hole of flame tube head.
This method is divided into three phases.
One, the inside and outside wall part manufacturing stage: the inside and outside wall primary holes 3 of burner inner liner, 4 position degree of blending hole be ensured of including, The outer wall part manufacturing stage, by itself of promotion burner inner liner inner wall cylinder 1 and 2 primary holes 3 of outer wall cylinder and 4 bottom outlet of blending hole Precision, and 2 flange hole location precision of burner inner liner inner wall cylinder 1 and outer wall cylinder is improved by the way of crossing positioning flange.
It after burner inner liner inner wall cylinder 1 and outer wall cylinder 2 form, is corrected using hydraulic bulging, guarantees burner inner liner inner wall cylinder 1 No more than 0.3mm after adding sternly with 2 circularity of outer wall cylinder, to guarantee that 3 row's bottom outlets add on burner inner liner inner wall cylinder 1 and outer wall cylinder 2 Work position precision.
When bottom outlet flange processing on 2 circumferential surface of burner inner liner inner wall cylinder 1 and outer wall cylinder, using core expansion type drilling tool, use The mode machined bottom of drilling and bore hole guarantees burner inner liner inner wall cylinder 1 and 2 flange bottom of outer wall cylinder as shown in Figures 2 and 3 Hole location φ 0.1mm, hole tolerance 0.1mm.Add the inside and outside wall part bottom outlet position degree of tight burner inner liner and dimensional accuracy.
Using multiple spot auxiliary positioning mode, when burner inner liner inner wall cylinder 1 and outer wall 2 flange processing of cylinder, with its left and right phase A nearest bottom outlet of distance or flanging bore positioning, form the common mistake in three holes in adjacent one round of bottom outlet or flanging bore and front and back Positioning carries out flange, it can be ensured that the inside and outside wall parts flanged-edge hole wall of burner inner liner is vertical with tubular axis, guarantees burner inner liner inner wall cylinder 2 flange hole location φ 0.3mm of body 1 and outer wall cylinder.
Two, the burner inner liner Combination Welding stage: in the burner inner liner Combination Welding stage, by matching turner skill, using tack welding Positioning vacuum heat treatment is connect and crossed, processing accumulated error is eliminated, reduces welding deformation and heat-treatment distortion, guarantee 3 He of primary holes 4 position precision of blending hole and primary holes 3 to the face benchmark D range accuracy.
With vehicle flame tube head 5 and burner inner liner inner wall cylinder 1 and the end face to be welded of outer wall cylinder 2, guarantee flame tube head 5 with The inside and outside wall cylinder electron beam butt weld welding contracted quantity 0.1mm~0.15mm of burner inner liner.To make up welding contraction distortion, disappear It is accurate to guarantee burner inner liner inner wall except the foozle that flame tube head 5, burner inner liner inner wall cylinder 1 and 2 early period of outer wall cylinder generate Position dimension of the center of the primary holes 3 of 2 first row of cylinder 1 and outer wall cylinder to 5 datum level D of flame tube head.
Erection welding flame tube head 5 and burner inner liner inner wall cylinder 1.As shown in figure 4, with 5 swirler of flame tube head peace Seat end standard face D positioning is filled, using the rigid member with 5 swirler mounting base end face of flame tube head with size, to burner inner liner 5 swirler mounting base end face of head is compressed, and pressing force rigid of transmission is made, and part is avoided to compress deformation;Before welding, burner inner liner Each flanging bore of inner wall, is all made of positioning pin and is run through, and carries out positioning, by taking out positioning pin after the completion of welding;Guarantee Burner inner liner inner wall first row flanging bore center is to datum level D distance 41.2mm and position degree φ 0.3mm.
The present embodiment preferably uses 24 short positioning pins to pass through 24 primary holes 3 of burner inner liner inner wall, carries out positioning.
Erection welding flame tube head 5 and flame drum outer wall cylinder 2, as shown in figure 5, with 5 swirler of flame tube head peace Seat end standard face D positioning is filled, using the rigid member with 5 swirler mounting base end face of flame tube head with size, to burner inner liner 5 swirler mounting base end face of head is compressed, and guarantees pressing force rigid of transmission, and part is avoided to compress deformation;Before welding, flame In cylinder inner wall and flame drum outer wall, the flanging bore of the corresponding overlapping in every two position is all made of a positioning pin and is run through, carried out Positioning is crossed, takes out soldered flame tube head 5 and burner inner liner inner wall cylinder 1 and outer wall cylinder 2 after the completion of welding;Guarantee The inside and outside wall first row flanging bore center of burner inner liner is to datum level D distance 41.2mm and position degree φ 0.3mm.
The present embodiment preferably uses 24 long positioning pins, passes through in burner inner liner inner wall and flame drum outer wall, every two position The primary holes 3 for setting corresponding overlapping, carried out positioning.
Welding stress is eliminated in the heat treatment of burner inner liner weld vacuum, with the inside and outside support ring end face of adjustment of wedge burner inner liner Difference in height, using the inside and outside wall first row of 48 positioning pin connection burner inner liners, second row flanging bore, with 24 positioning pin connection fire The inside and outside wall third of flame cylinder arranges flanging bore, then carries out positioning heat treatment.Vacuum heat treatment eliminates the same of burner inner liner welding stress When, guarantee that the inside and outside 3 row's flanging bore of wall of burner inner liner is inside and outside and is in same corresponding height and position.
Three, the burner inner liner Combined machining stage: using positioning, since the distance in primary holes 3 to the face benchmark D is protected Card, therefore can directly measure and guarantee the inside and outside wall first row flanging bore center of burner inner liner to the final position datum level B degree φ The requirement of 0.5mm, while guaranteeing datum level D to datum level B height 146.2 ± 0.2mm of size, it eliminates and combines burner inner liner early period Benchmark converts error in journey, eliminates and guarantees bring dimension chain error indirectly, directly 3 row's flange on the guarantee inside and outside wall of burner inner liner Requirement of the hole relative to the final position degree φ 0.5mm in the face benchmark A, B.
Burner inner liner combines the inside and outside support ring of Vehicle Processing, with 5 swirler mounting base end standard D of flame tube head positioning, fire In flame cylinder inner wall and flame drum outer wall, the flanging bore of the corresponding overlapping in every two position is all made of a positioning pin and is run through, into Went positioning, while using burner inner liner inside support ring external centring, it can be achieved that directly measurement and the guarantee inside and outside wall first of burner inner liner Arrange flanging bore center to datum level B theoretical distance 105mm, while guarantee datum level D to datum level B height size 146.2 ± 0.2mm。
The present embodiment preferably uses 8 long positioning pins, across the primary holes of the inside and outside 8 groups of overlappings of wall first row of burner inner liner 3, carried out positioning.
By guaranteeing inside and outside 3 center of wall primary holes of burner inner liner to datum level B theoretical distance 105mm, technique guarantees fiery Requirement of 2nd, the 3 row's flanging bores relative to the final position degree φ 0.5mm in the face benchmark A, B on the inside and outside wall of flame cylinder.
It used positioning to improve its processing rigidity, stability using based on thin-walled components, and improved the principle of positioning accuracy, lead to After rationally plus tight part stage foozle;The Combined machining stage reasonably selects locating benchmark, processing and measuring basis, It eliminates processing accumulated error, benchmark conversion error and guarantees bring dimension chain error indirectly, control welding deformation and heat treatment Deformation, machining deformation, can effectively prevent the inside and outside wall primary holes 3 of burner inner liner, 4 position degree of blending hole overproof, guarantee product quality. Easy, practical with good manufacturability, clamp structure, the good advantage of operability, product fully meets design requirement, and qualification rate reaches 100%.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention Protection scope within.

Claims (10)

1. a kind of method of cylinder flange hole machined and assembling, which is characterized in that include the following steps;
After step 1, burner inner liner inner wall cylinder (1) and outer wall cylinder (2) molding, to burner inner liner inner wall cylinder (1) and outer wall cylinder (2) circumferential surface is processed, and obtains bottom outlet;
Step 2 carries out flange to the bottom outlet on burner inner liner inner wall cylinder (1) and outer wall cylinder (2), and flange direction is towards cylinder Outside;
Step 3 carries out with vehicle flame tube head (5) and burner inner liner inner wall cylinder (1) and outer wall cylinder (2) end face to be welded;
Step 4, erection welding flame tube head (5) and burner inner liner inner wall cylinder (1), before welding, each master of burner inner liner inner wall It fires hole (3), is all made of positioning pin and is run through, carried out positioning, by taking out positioning pin after the completion of welding;
Step 5, erection welding flame tube head (5) and flame drum outer wall cylinder (2), before welding, burner inner liner inner wall and burner inner liner In outer wall, the primary holes (3) of the corresponding overlapping in every two position is all made of a positioning pin and is run through, carried out positioning, welds Soldered flame tube head (5) and burner inner liner inner wall cylinder (1) and outer wall cylinder (2) are taken out after the completion;
Step 6 carries out inside and outside support after flame tube head (5) is combined with burner inner liner inner wall cylinder (1) and outer wall cylinder (2) When the Vehicle Processing of ring, in burner inner liner inner wall cylinder (1) and outer wall cylinder (2), the primary holes of the corresponding overlapping of eight group of two two positions (3), it is all made of a positioning pin to be run through, carried out positioning, to directly determine the cutting position of inside and outside support ring.
2. the method for a kind of cylinder flange hole machined and assembling according to claim 1, which is characterized in that in step 1, After burner inner liner inner wall cylinder (1) and outer wall cylinder (2) molding, corrected using hydraulic bulging.
3. the method for a kind of cylinder flange hole machined and assembling according to claim 1, which is characterized in that in step 1, Using core expansion type drilling tool, by the way of drilling and bore hole, to burner inner liner inner wall cylinder (1) and outer wall cylinder (2) machined bottom.
4. the method for a kind of cylinder flange hole machined and assembling according to claim 1, which is characterized in that in step 2, When burner inner liner inner wall cylinder (1) and outer wall cylinder (2) bottom outlet flange processing, with the adjacent bottom outlet in its left and right or flanging bore and preceding The nearest bottom outlet of distance or common cross of flanging bore progress position in latter round, carry out flange.
5. the method for a kind of cylinder flange hole machined and assembling according to claim 1, which is characterized in that in step 3, Flame tube head (5) and burner inner liner inner wall cylinder (1) and outer wall cylinder (2) end face to be welded are carried out to make flame tube head with vehicle It (5) is 0.1mm~0.15mm with the inside and outside wall cylinder electron beam butt weld welding contracted quantity of burner inner liner.
6. the method for a kind of cylinder flange hole machined and assembling according to claim 1, which is characterized in that step 4 and step In rapid five, using the rigid member with flame tube head (5) swirler mounting base end face with size, flame tube head (5) are vortexed Device mounting base end face is compressed.
7. the method for a kind of cylinder flange hole machined and assembling according to claim 1, which is characterized in that step 5 is completed Afterwards, before entering step six, in soldered flame tube head (5) and burner inner liner inner wall cylinder (1) and outer wall cylinder (2) In, in burner inner liner inner wall and flame drum outer wall, the primary holes (3) of the corresponding overlapping in every two position is all made of a positioning pin Run through, carried out positioning, then carries out vacuum heat treatment.
8. the method for a kind of cylinder flange hole machined and assembling according to claim 1, which is characterized in that Step 4: step Rapid five and step 6 in, cross positioning when, with flame tube head (5) swirler mounting base end face positioning.
9. the method for a kind of cylinder flange hole machined and assembling according to claim 1, which is characterized in that in step 6, Using burner inner liner inside support ring external centring.
10. the method for a kind of cylinder flange hole machined and assembling according to claim 1, which is characterized in that Step 4: step Rapid five and step 6 in, cross positioning when, positioning pin pass through all flanging bores.
CN201910812206.7A 2019-08-30 2019-08-30 A kind of method of cylinder flange hole machined and assembling Pending CN110509011A (en)

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Application Number Priority Date Filing Date Title
CN201910812206.7A CN110509011A (en) 2019-08-30 2019-08-30 A kind of method of cylinder flange hole machined and assembling

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