CN105458325B - It is a kind of that the method to drill on tube sheet is fixed on using more radial drills - Google Patents
It is a kind of that the method to drill on tube sheet is fixed on using more radial drills Download PDFInfo
- Publication number
- CN105458325B CN105458325B CN201510846519.6A CN201510846519A CN105458325B CN 105458325 B CN105458325 B CN 105458325B CN 201510846519 A CN201510846519 A CN 201510846519A CN 105458325 B CN105458325 B CN 105458325B
- Authority
- CN
- China
- Prior art keywords
- tube sheet
- drill
- frock
- fixed
- radial
- 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.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
- B23B39/161—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles
Abstract
The invention discloses a kind of method for being fixed on using more radial drills and being drilled on tube sheet, in the region for the foundation ground that polylith frock square chest is arranged in compacting, plane on frock square chest is corrected with infrared ray theodolite, tube sheet is placed on frock square chest, is re-calibrated by the flatness of tube sheet detail drawing requirement；Multiple bolts hole coupled with template and connecting plate frock are drilled out on tube sheet, then assembling cope plate and connecting plate frock make it be bonded with tube sheet close integral；In addition radial drill is removed from original mounting seat, be assemblied in the connecting plate frock of tube sheet, and the cooling and lubricating system of each bench drill is transformed；The radial drill subregion of more transformations is fixed on tube sheet, the installation accuracy of drilling machine has been corrected, heat exchange pore is drilled out by the position subregion of machined bottom on bore template.Large-scale tube sheet pore is processed using machine tool scene, its efficiency is higher, and cost is relatively low, and quality is preferable, with strong applicability.
Description
Technical field
The invention belongs to technical field of mechanical processing, relates to the use of more radial drills and is fixed on the method to drill on tube sheet.
Background technology
The drilling prior art of tube sheet mainly has two kinds：One kind is drilled using separate unit radial drill after marking on slab；It is another
Kind is directly drilled using numerical control drilling.
The drilling of tube sheet is generally manufactured using in factory, mainly has two methods, a kind of is to be placed on the good tube sheet of car
On the large platform of line, platform pincers worker draws the pore position line by figure and charges and attacks dotting punch with sample and draw planning detection round wires, afterwards will
Tube sheet is fixed in the work top of radial drill, using separate unit radial drill by dotting punch position one by one drill, such a method efficiency compared with
Low, cost is relatively low；Another kind is to place car good tube sheet on numerical control drilling work top, and numerical control driller is by the programming of drawing hole position
Afterwards, numerical control drilling directly drills.Such a method efficiency is higher, and cost is higher.
The maximum specification of radial drill drilling is generally 100mm, and the drilling maximum outreach of its rocking arm is generally 3150mm, for
Boring large-scale tube sheet needs multiple clamping centering workpiece, and time-consuming, efficiency are low, and quality is unstable；And numerical control drilling drilling efficiency is high, but number
Control brill processing charges is higher, and large-sized numerical control, which bores expense higher, can especially process the numerical control drilling country of more than 5000mm parts
It is less, that is, allow to processing due to being influenced by cost of transportation and road overload etc., it is also relatively difficult to achieve.
In recent years, as petrochemical plant maximizes, tubular heat exchanger is promoted to also tend to maximize, tube sheet specification exists
More than 5000mm's is also more, and most equipment also needs erecting bed to construct by being limited by traffic condition, and the present invention is just
It is to solve the problem of large-scale tube sheet site operation drilling, it is low to solve separate unit radial drill drilling efficiency, ropy problem,
Also solve and costly, the problem of transport is limited is drilled to large-sized numerical control.
The content of the invention
The method to drill on tube sheet is fixed on using more radial drills the purpose of the present invention is to propose to a kind of, is solved with general
Lead to the problem of machine tooling Large Tube plate efficiency is low, of poor quality, of high cost.Such a method is suitable for site operation processing Large Tube
The higher pore of precision on plate, such as the example to drill on the tube sheet of diameter 5000mm, thickness in 90mm had verified that, effect
Preferably.
The technical solution adopted in the present invention is, a kind of that the method to drill on tube sheet is fixed on using more radial drills, presses
Carried out according to following steps：
Step 1, the foundation ground to site operation are tamped, and polylith frock square chest is arranged in the foundation ground region of compacting
It is interior, plane on frock square chest is corrected with infrared ray theodolite and ensures flatness within 2mm；
Tube sheet, be placed on frock square chest by step 2, using instrument and infrared ray theodolite again to plane on tube sheet
Being corrected flatness, (planarity requirements of itself should be consistent after this tube sheet Vehicle Processing with drawing requirement, here within 1mm
It is exemplified as 1mm)；
Step 3, for the not high pore of bridge required precision, directly can rule and beat by hand the side of dotting punch on tube sheet
Method, carries out determining for pore position；For the higher pore of bridge required precision (such as the tube head using argonaut welding welding)
The method of bore template drilling should be used to drill, i.e., template is fixed on tube sheet with c-type clamp, should accomplished and tube sheet
Face paste is closed closely, and template can be fabricated to sectional pattern plate by the ability that miniature numerical control bores, and in advance bore the machined bottom of pore
Go out, so as to ensure the positional precision finally to drill；
Step 4, the tube sheet of directly line drilling, fixed more radial drill connecting plate frocks are drilled out using magnetic drill in tube sheet
Bolt hole, and using bore template drilling tube sheet in addition to the hole in connecting plate frock is drilled out, should also drill out multiple guarantee moulds
The bolt hole that plate is fitted closely with tube sheet, wherein the position to drill should be overlapped with the position of pore, bolt pore size should be less than pipe
Pore size, finally fixes bore template and connecting plate frock with corresponding bolt；
Step 5, transform radial drill, i.e., with being fixed on tube sheet after radial drill is removed from original mounting seat
On connecting tooling assembling, and the cooling and lubricating system of lathe is subjected to appropriate reconstruction to be adapted to site operation；
Step 6, by more transformation radial drill subregions be fixed on tube sheet, the installation accuracy of drilling machine has been corrected, by punching
The bottom outlet position subregion processed on eye position or bore template drills out heat exchange pore, reaches drawing requirement, by fixed rocking arm
Bore connecting plate covering pore, after radial drill retighten once afterwards drill out, whole drilling environment temperature is not lower than 5 DEG C, should
Ensure that lathe can be lubricated and worked.
The beneficial effects of the invention are as follows large-scale tube sheet pore is processed using machine tool scene, its efficiency is higher, cost compared with
Low, quality is preferable, with strong applicability.
Brief description of the drawings
Fig. 1 is the system structure diagram of construction method of the present invention；
Fig. 2 is system for use in carrying structure schematic top plan view of the present invention；
Fig. 3 is the radial drill connection diagram of present system.
In figure, 1. tube sheets, 2. frock square chests, 3. infrared ray theodolites, 4. templates, 5. connecting plates, 6. radial drills, 7. coolings
Liquid circulation, 601. bolts, 602. pedestals.
Embodiment
With reference to embodiment, the present invention is described in detail.
The system used as depicted in figs. 1 and 2 for the method for the present invention, tube sheet 1 are placed on some frock square chests 2, frock side
The height of case 2 is adjusted to consistent level height by being arranged on the infrared ray theodolite 3 on the side of tube sheet 1, and template 4 is fixed on tube sheet
On 1, be bonded with 1 surface of tube sheet it is close and tightly integral with several bolts and tube sheet handle, be fixed with template 44 it is (several to shake
Arm bores several connecting plates) connecting plate 5, radial drill 6 is fixed with connecting plate 5, and the rocker arm drilling scope of all radial drills 6 adds up
The drilling scope of whole tube sheet 1 should be covered, four radial drills 6 are equipped with this example Fig. 1, is distributed on 1 surrounding of tube sheet, in template 4
The machined bottom of heat exchange pore is drilled out in advance, heat exchange the machining of drilling is carried out to tube sheet 1 with radial drill 6, and cooling is equipped with the side of tube sheet 1
Liquid circulation 7, for drilling when, cool down system.
It is illustrated in figure 3 the connection diagram of radial drill 6.By bolt 601 by the pedestal 602 of radial drill 6, connecting plate 5
Link together with tube sheet and template.
In two large-sized calandria type heat exchangers of Shandong Rizhao enterprise site operation, tube sheet diameter at the beginning of 2014
5640mm, thickness 90mm, pore 24928, apertureBridge spacing 96% allows bridge ＞ 5.64mm, and 4% permits
Perhaps minimum bridge >=3.48mm, condition of construction was according in technical solution of the present invention at the installation scene of the enterprise at that time
(bore template for being in drilling) for the machining of drilling that step 1~6 are realized with 4 Z50 radial drills, checks aperture ruler after drilling
It is very little all qualified, bridge spacing 98% bridge ＞ 5.7mm, 2% minimum bridge >=4.2mm.Comply fully with and wanted better than drawing
Ask.Every piece of drilling of tubesheet saves the time more than 1 month compared with separate unit radial drill, saves more than 70,000 yuan of external coordination digital control processing expense.
The present invention is drilled at the same time by fixed 4 radial drills on tube sheet, and makees benchmark bottom outlet, drilling using template
With the deformation in infrared ray theodolite monitoring tube sheet face in journey, the method for the present invention is practical and easy to implement, realizes existing
The purpose of field processing pore high-efficiency high-quality.A kind of new method of the live large-scale tube sheet of processing has also been created at the same time.
The above is only to the preferable embodiment of the present invention, not makees limit in any form to the present invention
System, any simple modification that every technical spirit according to the present invention makes embodiment of above, equivalent variations and modification,
Belong in the range of technical solution of the present invention.
Claims (1)
1. a kind of be fixed on the method to drill on tube sheet using more radial drills, it is characterised in that follows the steps below：
Step 1, the foundation ground to site operation are tamped, and polylith frock square chest is arranged in the foundation ground region of compacting,
Plane on frock square chest, which is corrected, with infrared ray theodolite ensures flatness within 2mm；
Tube sheet, be placed on frock square chest by step 2, and plane on tube sheet is carried out again using instrument and infrared ray theodolite
The control of correcting plane degree fixes within 1mm, and with parallels；
Bore template, be fixed on tube sheet by step 3 with c-type clamp, should accomplish to close close, central alignment with tube sheet face paste；
Template is fabricated to sectional pattern plate by the ability that miniature numerical control bores, and in advance drills out the machined bottom of pore；
Step 4, drill out on tube sheet multiple guarantee templates with magnetic drill the bolt hole being connected fitted closely with tube sheet, and drills out
The bolt hole of fixed more radial drill connecting plate frocks, reaches and fixes bore template and the mesh of connecting plate frock with corresponding bolt
's；
Step 5, transform radial drill, i.e., with being fixed on tube sheet after radial drill is removed from original mounting seat
Connecting plate frock is assembled, and the cooling and lubricating system of lathe is carried out appropriate reconstruction to be adapted to site operation；
Step 6, by more transformation radial drill subregions be fixed on tube sheet, the installation accuracy of drilling machine has been corrected, by drilling die
Machined bottom position subregion on plate drills out heat exchange pore, reaches or the borehole accuracy better than drawing requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510846519.6A CN105458325B (en) | 2015-11-27 | 2015-11-27 | It is a kind of that the method to drill on tube sheet is fixed on using more radial drills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510846519.6A CN105458325B (en) | 2015-11-27 | 2015-11-27 | It is a kind of that the method to drill on tube sheet is fixed on using more radial drills |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105458325A CN105458325A (en) | 2016-04-06 |
| CN105458325B true CN105458325B (en) | 2018-04-24 |
Family
ID=55596727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510846519.6A Expired - Fee Related CN105458325B (en) | 2015-11-27 | 2015-11-27 | It is a kind of that the method to drill on tube sheet is fixed on using more radial drills |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105458325B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772784A (en) * | 2016-05-18 | 2016-07-20 | 中车唐山机车车辆有限公司 | Drilling system for workpiece |
| CN110548889B (en) * | 2019-07-30 | 2021-01-12 | 高邮市永发机械有限公司 | Stable and efficient magnetic drill press of driling |
| CN111069919B (en) * | 2019-12-31 | 2021-10-15 | 哈电集团（秦皇岛）重型装备有限公司 | High-temperature gas cooled reactor tube plate weld thread machining equipment and machining process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2892336Y (en) * | 2006-05-22 | 2007-04-25 | 梁锦星 | Full automatic dual-end multibit drill lathe |
| CN202137410U (en) * | 2011-06-29 | 2012-02-08 | 天津赛瑞机器设备有限公司 | Drilling tool for end face of externally-arranged water ring guide vane hole of hydroturbine generator set |
| CN104259767A (en) * | 2014-08-20 | 2015-01-07 | 云南大为化工装备制造有限公司 | Machining method of group of holes in large-sized metal tube plate |
| CN104959640A (en) * | 2015-05-29 | 2015-10-07 | 刘海明 | Precise hole forming drilling machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6719502B2 (en) * | 2002-04-16 | 2004-04-13 | Amsted Industries Inc. | Boring riser holes in a graphite mold |
-
2015
- 2015-11-27 CN CN201510846519.6A patent/CN105458325B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2892336Y (en) * | 2006-05-22 | 2007-04-25 | 梁锦星 | Full automatic dual-end multibit drill lathe |
| CN202137410U (en) * | 2011-06-29 | 2012-02-08 | 天津赛瑞机器设备有限公司 | Drilling tool for end face of externally-arranged water ring guide vane hole of hydroturbine generator set |
| CN104259767A (en) * | 2014-08-20 | 2015-01-07 | 云南大为化工装备制造有限公司 | Machining method of group of holes in large-sized metal tube plate |
| CN104959640A (en) * | 2015-05-29 | 2015-10-07 | 刘海明 | Precise hole forming drilling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105458325A (en) | 2016-04-06 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180315 Address after: 132000 Zunyi East Road, Longtan District, Jilin, Jilin Province, No. 9 Applicant after: Jilin global and creation machinery manufacturing Cleaning Co., Ltd. Address before: No. 9, Zunyi Road, Longtan District, Jilin, Jilin Applicant before: JILIN MACHINERY MANUFACTURING BRANCH, CNPC NORTHEAST REFINING & CHEMICAL ENGINEERING CO., LTD. |
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Effective date of registration: 20180321 Address after: 132000 Zunyi East Road, Longtan District, Jilin, Jilin Province, No. 9 Applicant after: Jilin global and creation machinery manufacturing Cleaning Co., Ltd. Address before: 132000 Zunyi East Road, Longtan District, Jilin, Jilin Province, No. 9 Applicant before: JILIN MACHINERY MANUFACTURING BRANCH, CNPC NORTHEAST REFINING & CHEMICAL ENGINEERING CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180424 Termination date: 20181127 |