CN110026741A - A kind of rough machining method of centrifugal compressor casing - Google Patents
A kind of rough machining method of centrifugal compressor casing Download PDFInfo
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- CN110026741A CN110026741A CN201910341165.8A CN201910341165A CN110026741A CN 110026741 A CN110026741 A CN 110026741A CN 201910341165 A CN201910341165 A CN 201910341165A CN 110026741 A CN110026741 A CN 110026741A
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- casing
- boring machine
- centrifugal compressor
- axis
- workbench
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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
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Abstract
The invention discloses a kind of rough machining methods of centrifugal compressor casing, belong to centrifugal compressor technical field.The rough machining method of the centrifugal compressor casing is the following steps are included: the casing of centrifugal compressor is lifted on the workbench of boring machine, and is supported to the casing；Centering is carried out to the inner hole in the bearings at both ends area of the casing, obtains the axis of the inner hole；The height for adjusting the casing keeps the axis of the inner hole parallel with the X-axis of the boring machine；Determine boring machine Y-axis position；Determine boring machine X-axis position；It is removed in surplus of the boring machine Z-direction to the casing abdominal cavity.The rough machining method of centrifugal compressor casing of the present invention is processed by boring machine, is reduced processing hour unit price, is reduced cost.
Description
Technical field
The present invention relates to centrifugal compressor technical field, in particular to a kind of rough machining method of centrifugal compressor casing.
Background technique
Existing method carries out roughing using casing of the gantry mill to centrifugal compressor, is limited to the size of casing, needs work
Make platform width greater than 4400mm, length is greater than 4100mm, and gantry mill of gantry height greater than 4550mm is processed, only used
Existing 15 meters of planer-type milling machines are just able to satisfy the demand of the size in factory.By attached using the roughing side milling of 15 meters of gantry mills
Part cooperates tri- face angle of throat disk of φ 630mm, by being axially and radially layered processing, to complete the roughing of the casing.
But it is limited to the structure type in casing abdominal cavity, the material property of material, by gantry mill to centrifugal compressor casing
Processed, 15 meters of gantry mill hour unit prices of our factory be about 1500 yuan per hour, resulting processing cost is very high
's.
So processed by gantry mill to centrifugal compressor casing, from cost for it is just very high.
Summary of the invention
The present invention provides a kind of rough machining method of centrifugal compressor casing, solves or part solves in the prior art
Centrifugal compressor casing is processed by gantry mill, technical problem with high costs.
In order to solve the above technical problems, including following the present invention provides a kind of rough machining method of centrifugal compressor casing
Step: the casing of centrifugal compressor is lifted on the workbench of boring machine, and is supported to the casing；To the casing
The inner hole in bearings at both ends area carries out centering, obtains the axis of the inner hole；The height for adjusting the casing makes the axis of the inner hole
Line is parallel with the X-axis of the boring machine；Determine boring machine Y-axis position；Determine boring machine X-axis position；In boring machine Z-direction pair
The surplus in the casing abdominal cavity is removed.
Further, described the casing of centrifugal compressor to be lifted on the workbench of boring machine the following steps are included: passing through
Lifting rope passes through the abdominal cavity of the casing and the air inlet cylinder of casing, slings the casing vertically.
Further, described be supported to casing includes the following steps；On the workbench by backup plate fixed setting,
The air duct flange of the casing is leaned against on the backup plate；It is set in the air duct flange split flange lateral surface lower part of the casing
Adjusting slightly iron is set, the casing is supported by the adjusting slightly iron；In the air duct flange of the casing and the davit of the casing
Place's setting compressing structure, the casing is fixed.
Further, described that backup plate is fixedly installed on the workbench the following steps are included: the backup plate is arranged
On the table；First pressing plate is fixedly connected with the workbench, the edge of the backup plate is arranged in first pressing plate
Between the workbench.
Further, the hold-down mechanism includes: the second pressing plate, screw rod, column and sliding block；The column passes through the cunning
Block is slidably disposed on the workbench；The connecting side of second pressing plate is connect with the uprights vertical, and described second
The compression side of pressing plate is towards the air duct flange of the casing and the davit of the casing；It the compression side of second pressing plate can be with institute
State the davit contact of the air duct flange and the casing of casing；The screw rod passes through second pressing plate and the workbench screw thread
Connection.
Further, the sliding rail matched with the sliding block is provided on the workbench.
Further, the determining boring machine Y-axis position by top the following steps are included: be arranged on the main shaft of boring machine；It is logical
Cross it is described it is top the inner hole divided, determine the position of the boring machine Y-axis.
Further, it is described by it is top to the inner hole divide in the following steps are included: by it is described it is top with it is described
The highest point of inner hole contacts, and obtains the first altitude information A；The top lowest part with the inner hole is contacted, obtains second
Altitude information B；First the second altitude information of altitude information A+ B/2 is obtained into third height data C, the third height data C
The position of the as described boring machine Y-axis.
Further, the determining boring machine X-axis position is the following steps are included: cutterhead is arranged on the main shaft of boring machine；It will
The cutterhead rotates at a slow speed, makes slightly to be scratched on the cutterhead and the inner face of the inner hole, that is, can determine boring machine X
The position of axis.
Further, the cutterhead is square shoulder facing cutter.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
Since the casing of centrifugal compressor to be lifted on the workbench of boring machine, and casing is supported, to casing
The inner hole in bearings at both ends area carries out centering, obtains the axis of inner hole, adjusts the height of casing, makes the axis of inner hole and the X of boring machine
Axis is parallel, determines boring machine Y-axis position, determines boring machine X-axis position, is removed in surplus of the boring machine Z-direction to casing abdominal cavity,
Roughing is carried out to casing abdominal cavity by boring machine, processing hour unit price is reduced, reduces cost.
Detailed description of the invention
Fig. 1 is the flow diagram of the rough machining method of centrifugal compressor casing provided in an embodiment of the present invention；
Fig. 2 is the setting schematic diagram of centrifugal compressor casing provided in an embodiment of the present invention.
Specific embodiment
Referring to Fig. 1-2, a kind of rough machining method of centrifugal compressor casing provided in an embodiment of the present invention includes following step
It is rapid:
The casing 1 of centrifugal compressor is lifted on the workbench 3 of boring machine 2, and is supported to casing 1 by step S1.
Step S2 carries out centering to the inner hole 4 in the bearings at both ends area of casing 1, obtains the axis of inner hole 4.
Step S3 adjusts the height of casing 1, keeps the axis of inner hole 3 parallel with the X-axis of boring machine 2.
Step S4 determines boring machine Y-axis position.
Step S5 determines boring machine X-axis position.
Step S6 is removed in surplus of the boring machine Z-direction to 1 abdominal cavity of casing.
Step S1 is discussed in detail.
The casing 1 of centrifugal compressor is lifted on the workbench 3 of boring machine 2 the following steps are included:
Step S11 is passed through the abdominal cavity of casing 1 and the air inlet cylinder of casing by lifting rope, slings casing 1 vertically, can incited somebody to action
Casing 1 is vertically disposed on workbench 3.
Casing 1 is supported the following steps are included:
Backup plate 5 is fixed on workbench 3 by step S12, and the air duct flange of casing 1 is leaned against on backup plate 5.
Step S13, in the air duct flange split flange lateral surface lower part of casing 1, setting adjusts slightly iron 6, by adjusting slightly
6 support machine casing 1 of iron.
Compressing structure 7 is arranged in step S14 at the air duct flange of casing 1 and the davit of casing, and casing 1 is fixed.
Step S12 is discussed in detail.
Backup plate 5 is fixed on workbench 3 the following steps are included:
Backup plate 5 is arranged on workbench 3 step S121.
First pressing plate is fixedly connected by step S122 with workbench 3, and the edge of backup plate 5 is arranged in the first pressing plate and work
Make between platform 3.Specifically, in the present embodiment, the first pressing plate can be fixedly connected by bolt with workbench 3.
The bottom edge of backup plate 5 is pressed on workbench 3 by the first pressing plate, to prevent play.
The structure of hold-down mechanism 7 is discussed in detail.
Hold-down mechanism 7 includes: the second pressing plate 7-1, screw rod 7-2, column 7-3 and sliding block.
Column 7-3 is slidably disposed on workbench 3 by sliding block.It is provided on workbench 3 and matches with sliding block
Sliding rail
The connecting side of second pressing plate 7-1 is vertical with column 7-3 to be fixedly connected.Specifically, in the present embodiment, the second pressure
The connecting side of plate 7-1 can be fixedly connected by the way that welding is vertical with column 7-3, in other embodiments, the company of the second pressing plate 7-1
Connect that side can such as bolt be vertical with column 7-3 otherwise is fixedly connected.The compression side of second pressing plate 7-1 is towards casing 1
Air duct flange and casing davit.
The compression side of second pressing plate 7-1 can be contacted with the davit of the air duct flange of casing 1 and casing 1.
Screw rod 7-2 passes through the second pressing plate 7-1 and is threadedly coupled with workbench 3.
So column 7-3 is slided on workbench 3 by sliding block, the compression side of the second pressing plate 7-1 is driven to reach casing 1
Air duct flange and casing davit at, the second pressing plate 7-1 is passed through by screw rod 7-2 and is threadedly coupled with workbench 3, second is pressed
The position of plate 7-1 is locked, and the compression of casing 1 is fixed by the second pressing plate 7-1.
Step S2 is discussed in detail.
Centering is carried out by inner hole 4 of the dial gauge to the bearings at both ends area of casing 1.
Step S4 is discussed in detail.
Determine boring machine Y-axis position the following steps are included:
S41, will be on the top main shaft that boring machine is removably arranged in.
S42 divides inner hole 4 by top, determines the position of boring machine Y-axis.
Step S42 is discussed in detail.
By it is top to inner hole divide in the following steps are included:
S421 contacts the top highest point with the inner hole, obtains the first altitude information A.
S422 contacts the top lowest part with the inner hole, obtains the second altitude information B.
First the second altitude information of altitude information A+ B/2 is obtained third height data C by S423, and third height data C is
For the position of boring machine Y-axis.
Step S5 is discussed in detail.
Determine boring machine X-axis position the following steps are included:
Step S51 cutterhead is removably arranged on the main shaft of boring machine 2.
Step S52 rotates at a slow speed cutterhead, makes slightly to be scratched on cutterhead and the inner face of inner hole 4, can be true
Determine the position of boring machine X-axis.
Gantry mill uses tri- face angle of throat disk of φ 630mm, but can only obtain the back engagement of the cutting edge and working engagement of the cutting edge of very little, material
Removal efficiency is very low, and there are about 60, blade for tri- face angle of throat disk one of φ 630mm circle, and since material is very hard, breaks down quickly, is operated
Person's replacement needs long time once circle blade, and lathe down time is also longer.The cutterhead of the application is square shoulder facing cutter, into
Reduce cost to one step.
Step S6 is discussed in detail.
It is removed in surplus of the boring machine Z-direction to 1 abdominal cavity of casing specifically:
Layering copying is carried out in the boring machine Z-direction surplus intraperitoneal to casing, removes intraperitoneal most of surplus,
It is further reduced the cost by being layered copying.
The embodiment of the present invention is introduced in order to become apparent from, is introduced from the application method of the embodiment of the present invention below.
For the application to the manufacture field of the stator part of centrifugal compressor, the form of this stator part is cast stainless steel machine
Shell lower half portion, outer profile volume are about 4097*4400*3000, which is finishing
Work surface casts surplus between 100mm-200mm, and abdominal cavity depth 1550mm, case material type is steel-casting, material trademark
For ZG06Cr13Ni4Mo.
The abdominal cavity of casing 1 and the air inlet cylinder of casing are passed through by lifting rope, sling casing 1 vertically, it can be vertical by casing 1
It is placed on workbench 3.
Backup plate 5 is fixed on workbench 3, the air duct flange of casing 1 is leaned against on backup plate 5, the first pressing plate will lean on
The bottom edge of plate 5 is pressed on workbench 3, to prevent play.In the air duct flange split flange lateral surface lower part of casing 1
It is arranged two and adjusts slightly iron 6, by adjusting slightly 6 support machine casing 1 of iron, the extruding or separation for adjusting slightly iron 6 by two is to casing 1
Height be adjusted.Column 7-3 is slided on workbench 3 by sliding block, and the compression side of the second pressing plate 7-1 is driven to reach casing
At 1 air duct flange and the davit of casing, the second pressing plate 7-1 is passed through by screw rod 7-2 and is threadedly coupled with workbench 3, by second
The position of pressing plate 7-1 is locked, and the compression of casing 1 is fixed by the second pressing plate 7-1.Second pressing plate 7-1 compression movement with
The height that slightly iron 6 adjusts casing 1 is adjusted to carry out simultaneously.
Centering is carried out by inner hole 4 of the dial gauge to the bearings at both ends area of casing 1, obtains the axis of inner hole 4.
The slightly height of the extruding of iron 6 or separation adjusting casing 1 is adjusted by two, makes the axis of inner hole 3 and the X of boring machine 2
Axis is parallel.
It is mounted on top on the main shaft of boring machine.The top highest point with the inner hole is contacted, the first high degree is obtained
According to A, the top lowest part with the inner hole is contacted, obtains the second altitude information B, by first the second high degree of altitude information A+
Third height data C is obtained according to B/2, third height data C is the position of boring machine Y-axis.
Square shoulder facing cutter is mounted on the main shaft of boring machine 2.Cutterhead is rotated at a slow speed, the interior of cutterhead and inner hole 4 is made
It is slightly scratched on end face, that is, can determine the position of boring machine X-axis.
Layering copying is carried out in the boring machine Z-direction surplus intraperitoneal to casing, removes intraperitoneal most of surplus,
It is further reduced the cost by being layered copying.
It should be noted last that the above specific embodiment is only used to illustrate the technical scheme of the present invention and not to limit it,
Although being described the invention in detail referring to example, those skilled in the art should understand that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention, should all cover
In the scope of the claims of the present invention.
Claims (10)
1. a kind of rough machining method of centrifugal compressor casing, which comprises the following steps:
The casing of centrifugal compressor is lifted on the workbench of boring machine, and the casing is supported；
Centering is carried out to the inner hole in the bearings at both ends area of the casing, obtains the axis of the inner hole；
The height for adjusting the casing keeps the axis of the inner hole parallel with the X-axis of the boring machine；
Determine boring machine Y-axis position；
Determine boring machine X-axis position；
It is removed in surplus of the boring machine Z-direction to the casing abdominal cavity.
2. the rough machining method of centrifugal compressor casing according to claim 1, which is characterized in that described by centrifugal compressed
The casing of machine be lifted on the workbench of boring machine the following steps are included:
The abdominal cavity of the casing and the air inlet cylinder of casing are passed through by lifting rope, sling the casing vertically.
3. the rough machining method of centrifugal compressor casing according to claim 1, which is characterized in that described to be carried out to casing
Support includes the following steps；
On the workbench by backup plate fixed setting, the air duct flange of the casing is leaned against on the backup plate；
In the air duct flange split flange lateral surface lower part of the casing, setting adjusts slightly iron, is supported by the adjusting slightly iron
The casing；
Compressing structure is set at the air duct flange of the casing and the davit of the casing, the casing is fixed.
4. the rough machining method of centrifugal compressor casing according to claim 3, which is characterized in that described to fix backup plate
Setting on the workbench the following steps are included:
On the table by backup plate setting；
First pressing plate is fixedly connected with the workbench, the edge of the backup plate is arranged in first pressing plate and the work
Make between platform.
5. the rough machining method of centrifugal compressor casing according to claim 3, which is characterized in that the hold-down mechanism packet
It includes: the second pressing plate, screw rod, column and sliding block；
The column is slidably disposed on the workbench by the sliding block；
The connecting side of second pressing plate is connect with the uprights vertical, and the compression side of second pressing plate is towards the casing
The davit of air duct flange and the casing；
The compression side of second pressing plate can be contacted with the davit of the air duct flange of the casing and the casing；
The screw rod passes through second pressing plate and is threadedly coupled with the workbench.
6. the rough machining method of centrifugal compressor casing according to claim 5, it is characterised in that:
The sliding rail matched with the sliding block is provided on the workbench.
7. the rough machining method of centrifugal compressor casing according to claim 1, which is characterized in that the determining boring machine Y
Shaft position the following steps are included:
It is arranged in top on the main shaft of boring machine；
By it is described it is top the inner hole divided, determine the position of the boring machine Y-axis.
8. the rough machining method of centrifugal compressor casing according to claim 7, which is characterized in that described by top right
During the inner hole carries out point the following steps are included:
The top highest point with the inner hole is contacted, the first altitude information A is obtained；
The top lowest part with the inner hole is contacted, the second altitude information B is obtained；
First the second altitude information of altitude information A+ B/2 is obtained into third height data C, the third height data C is institute
State the position of boring machine Y-axis.
9. the rough machining method of centrifugal compressor casing according to claim 1, which is characterized in that the determining boring machine X
Shaft position the following steps are included:
Cutterhead is arranged on the main shaft of boring machine；
The cutterhead is rotated at a slow speed, makes slightly to be scratched on the cutterhead and the inner face of the inner hole, it can be true
Determine the position of boring machine X-axis.
10. the rough machining method of centrifugal compressor casing according to claim 9, it is characterised in that:
The cutterhead is square shoulder facing cutter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910341165.8A CN110026741B (en) | 2019-04-25 | 2019-04-25 | Rough machining method for centrifugal compressor shell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910341165.8A CN110026741B (en) | 2019-04-25 | 2019-04-25 | Rough machining method for centrifugal compressor shell |
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| CN110026741A true CN110026741A (en) | 2019-07-19 |
| CN110026741B CN110026741B (en) | 2021-06-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114850791A (en) * | 2022-04-29 | 2022-08-05 | 沈阳鼓风机集团股份有限公司 | Method for processing special corner of large-scale hole compressor |
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| CN110026741B (en) | 2021-06-22 |
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