CN104972151B - Process boring tool holder, boring cutter system and its design method of engine rooms of wind power generators - Google Patents
Process boring tool holder, boring cutter system and its design method of engine rooms of wind power generators Download PDFInfo
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- CN104972151B CN104972151B CN201510315602.0A CN201510315602A CN104972151B CN 104972151 B CN104972151 B CN 104972151B CN 201510315602 A CN201510315602 A CN 201510315602A CN 104972151 B CN104972151 B CN 104972151B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/03—Boring heads
- B23B29/034—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
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Abstract
A kind of boring tool holder, boring cutter system and its design method for processing engine rooms of wind power generators, wherein, boring tool holder includes the axis of guide, tool arm and boring cutter composite module；The top of the axis of guide is vertically connected on the centre position of tool arm from the side of tool arm, constitutes " T " font；Boring cutter composite module has two, and they are connected to the end of left and right two of tool arm；The tool arm includes girder and auxiliary beam；Auxiliary beam is detachably connected to the left and right ends of girder；The axis of guide is connected to the centre position of girder, and the axis of guide and two crossbeams are all connected；Each auxiliary beam includes being fixedly connected by one or more posts between two parallel crossbeams, two crossbeams；The mechanism being connected with boring cutter composite module is designed with the left and right two ends of girder and auxiliary beam；Also include coupling body, the oil circuit for connecting machine tool main shaft.Boring cutter system, including lathe, engine rooms of wind power generators frame, axis of guide support base and the boring tool holder.This programme can solve to process more than 2.5m large aperture processing problem.
Description
Technical field
The technical program belongs to the machining technology field of the related important feature component of Wind turbines, is specifically a kind of add
Boring tool holder, boring cutter system and its design method of work engine rooms of wind power generators (base).
Background technology
As shown in accompanying drawing 1,2,5,6, the structure of certain type engine rooms of wind power generators is more special in the prior art, and shape is not advised
Then and complicated, larger (length × width × height) 5087mm × 4200mm × 3731mm of size, single-piece blank weight is 59 tons；It is smart in addition
Degree requires especially high, and the large apertures of 2690/ φ of φ 3200/ φ, 2700/ φ 840 are H7 fit tolerances, and concentricity and bounce all exist
Within 0.05mm, and finish is Ra1.6.Process extremely difficult using traditional means, and its every essence of processing can not be ensured
Degree is required.
The content of the invention
There is above mentioned problem to solve existing process technology, the technical program proposes a kind of processing engine rooms of wind power generators
Boring tool holder, the design method of boring cutter system and boring cutter system, it is specific as follows：
A kind of boring tool holder for processing engine rooms of wind power generators, including the axis of guide, tool arm and boring cutter composite module；It is described to be oriented to
One end of axle is vertically connected on the centre position of tool arm, constitutes " T " font；Boring cutter composite module has two, and they are connected respectively
In the end of left and right two of tool arm；The tool arm includes girder and auxiliary beam；Auxiliary beam is detachably connected to the left and right ends of girder；Institute
Stating girder includes being fixedly connected by one or more posts between two parallel crossbeams, two crossbeams；The axis of guide is connected to master
The centre position of beam, and the axis of guide and two crossbeams all connect；Each auxiliary beam is included between two parallel crossbeams, two crossbeams
It is fixedly connected by one or more posts；It is designed with being connected with boring cutter composite module on the left and right two ends of girder and auxiliary beam
Mechanism；Also include the coupling body for being used to connect main shaft；The coupling body is connected to the centre position of tool arm, and coupling body
It is identical with the axis of the axis of guide；Also include oil circuit, one end of oil circuit is in boring cutter composite module position, the outside oil circuit of other end connection
The port of export.
Connected between the axis of guide and tool arm by key；
The screwed hole for connecting tool arm is provided with the outer wall of the axis of guide, is provided with tool arm corresponding with screwed hole logical
Hole, each through hole, screwed hole are bolted；
The opposite side of tool arm is stretched out on the top of the axis of guide, the screwed hole for connecting shaft coupling is provided with the axis of guide, the spiral shell
Axis of the axis of pit perpendicular to the axis of guide；Screwed hole has one or more；When screwed hole has multiple, they are on being oriented to
The axis of axle is into axial symmetry.
The material of the tool arm uses aviation wrought aluminium 7050, and thickness is 80 ± 2mm；
Fastening point between horizontal beam and column is fixed by stud, and stud spacing is 70mm；Spacing between adjacent pillars is
360mm。
The axis of guide is, using after nitrated steel (38CrMoA1) processing, first to carry out modifier treatment, then to the table of the axis of guide
Face carries out nitrogen treatment, case hardness is reached HV >=800；
Then key position is ground, the key position includes joint face, the axis of guide and the knife of the axis of guide and coupling body
Coupling part between arm；Ground, the surface smoothness of key position reaches Ra0.8, while ensureing axis of guide axle external diameter h6
Tolerance.
A kind of boring cutter system of processing engine rooms of wind power generators using above-mentioned boring tool holder, including lathe, wind-driven generator
Cabin frame, axis of guide support base and the boring tool holder；Engine rooms of wind power generators is detachably combined on engine rooms of wind power generators frame；
The main shaft that boring tool holder passes through coupling body connecting machine tool；Shaft supporting frame is oriented to be detachably connected in engine rooms of wind power generators, and
Position is being processed the end in hole；It is being oriented to bearing of the centre position provided with the connection axis of guide of shaft supporting frame；At position of bearings
Provided with lubricating oil outlet；The axis for being processed hole is identical with the axis of the axis of guide.
The axis in the processed hole and the axis of the axis of guide are all levels.The bearing is copper sheathing.The wind-force hair
Motor cabin frame includes multiple parallel supports；The upper limb of each support and the profile pair of the relevant position of engine rooms of wind power generators
Should.
A kind of design method of above-mentioned boring cutter system, step includes：
Step 1) structural analysis first is carried out to workpiece to be machined：
Because being influenceed by workpiece to be machined architectural feature, it can not be processed on vertical car, it is assumed that it is flat with base to lay flat on one's back
Justify down in face, then the feed shaft of lathe is that the stroke of Z axis and W axles can not be met；Justified and be processed between hole by base plane
Distance interference, in addition, dimensional tolerance can not be met with line position tolerance；
Step 2) redesign workpiece clamping fixture structure：
Workpiece to be machined side into clamping, base plane circle is avoided with being processed the interference of the distance between hole, when making processing
Feed shaft outreach is shorter, easily ensures size and line position tolerance；
Using multiple supports, workpiece to be machined center of gravity is distributed on the whole table top of workbench, makes work top by gravity
Uniformly；
Step 3) and then design boring tool holder：
After processing technology is established, the data of each item data of aggregate machine tool and Workpiece structure are used as boring cutter using aviation aluminium
The material of frame；By cutter frame structure limit decision using assembly, from the thick aviation aluminium sheets of 80 ± 2mm, increase contact surface increases simultaneously
Fastening point；
Step 4) technological requirement of this boring cutter system in use is：
Boring tool holder is that can not bear the weight completely by lathe itself, utilizes the processed Kong An of workpiece from 750kg is weighed about
Fill axis of guide support base；
Optimal parameter be the unilateral 3mm of cutting output, revolution be S=16 revs/min, feeding be F=4.2mm/ points.
The technical program can solve the large aperture processing problem of processing more than 2.5m in machining industry, especially exist
In more than 5MW grades of wind-driven generator component processing.
Brief description of the drawings
Fig. 1 is the axial sectional diagrammatical view illustration of workpiece to be machined in this example (dimensional units are mm in figure)；
X is indicated in vertical view (processed partial axial section) schematic diagram (dimensional units are mm in figure) that Fig. 2 is Fig. 1, figure
Part will process aperture for inner chamber；
Fig. 3 is the boring tool holder schematic diagram (dimensional units are mm in figure) of this example；
Fig. 4 is the boring cutter system use state schematic top plan view (dimensional units are mm in figure) of this example；
Fig. 5 is that workpiece shown in Fig. 1 deletes mark schematic diagram；
Fig. 6 is that workpiece shown in Fig. 2 deletes mark schematic diagram；
In above-mentioned figure：The axis of guide 1, tool arm 2, boring cutter composite module 3, girder 4, auxiliary beam 5, crossbeam 6, post 7, coupling body 8,
Oil pipe 9, lathe 10, engine rooms of wind power generators 11, axis of guide support base 12, boring tool holder 13；Copper sheathing 14, driving key 15, fastening point
16th, aviation aluminium sheet 17, inner chamber will process aperture X.
Embodiment
The specific situation of workpiece described in the technical program and its manuscript 1,2 is introduced below in conjunction with the accompanying drawings：
A kind of boring tool holder for processing engine rooms of wind power generators, passes through machine tool chief axis powered belt cutter rotary cutting workpiece.
Key is that centre pilot axle plays the deadweight of support cutter and produces vibration and stress, its material in the centre of location and elimination cutting
Quenched and nitrogen treatment after being processed from nitrated steel (38CrMoA1), finally grinds the position of key.Its blade holder part material is
Assembled after aviation aluminium is processed, emphasis is to select the thickness of aviation aluminium sheet (aviation wrought aluminium 7050), the quantity of fastening point, strengthen muscle portion
The distribution divided, it is to be ensured that knife rest has enough intensity to refer to accompanying drawing 3 with precision.
This boring tool holder, including the axis of guide, tool arm and boring cutter composite module (effect of this module is clamping boring cutter, be allowed to
Tool arm is connected, and link position can be finely tuned.Use prior art can be with simple realization, no particular requirement)；The axis of guide
One end is vertically connected on the centre position of tool arm, constitutes " T " font；Boring cutter composite module has two, and they are connected to knife
The end of left and right two of arm；The tool arm includes girder and auxiliary beam；Auxiliary beam is detachably connected to the left and right ends of girder；The master
Beam includes being fixedly connected by one or more posts between two parallel crossbeams, two crossbeams；The axis of guide is connected to girder
Centre position, and the axis of guide and two crossbeams all connect；Each auxiliary beam includes passing through between two parallel crossbeams, two crossbeams
One or more posts are fixedly connected；The machine being connected with boring cutter composite module is designed with the left and right two ends of girder and auxiliary beam
Structure；Also include the coupling body for being used to connect main shaft (mechanism can use existing ripe technology, no particular/special requirement)；The connection
Axis mechanism is connected to the centre position of tool arm, and coupling body is identical with the axis of the axis of guide；Also include oil circuit, one end of oil circuit
In boring cutter composite module position, the port of export of the outside oil circuit of other end connection.
The axis of guide is, using after nitrated steel (38CrMoA1) processing, first to carry out traditional modifier treatment, then to being oriented to
The surface of axle carries out nitrogen treatment；Nitrogen treatment is carried out in nitriding furnace, and adjusting process parameter is carried out by experiment so that nitridation
The case hardness of the axis of guide after processing reaches HV >=800；Then key position is ground, such as axis of guide connecting machine tool main shaft face
With positioning hole, the smooth leads of φ 150h6 and crossbeam coupling part, its surface smoothness requirements reaches Ra0.8 while ensureing axle
External diameter h6 tolerances, so just can guarantee that the required precision of cutter.
The material of the tool arm uses aviation wrought aluminium 7050, and thickness is 80 ± 2mm.
Fastening point between horizontal beam and column totally 8, is divided into each 4 M16 screw threads of positive and negative, and its screw spacing is 70mm.Altogether
Use reinforcement at 8 (i.e. post), be distributed in spacing adjacent on beam for 360mm.
Connected between the axis of guide and tool arm by key；On the outer wall of the axis of guide, 10 M20 screw threads are provided with vertically
Hole, is provided with through hole corresponding with screwed hole on tool arm, and each through hole, screwed hole are bolted, and constitutes fastening point.Fastening
Point is mainly distributed as directly fixing 4 M20 of tool arm in 0 ° and last 2 of 180 ° of faces, and being fixedly connected with ring has 6 M20 in circumference
360 ° of decile angles, then have 12 M20 holes from connection ring fixation tool arm.
A kind of boring cutter system of processing engine rooms of wind power generators using above-mentioned boring tool holder, including lathe, wind-driven generator
Cabin frame, axis of guide support base and the boring tool holder；Engine rooms of wind power generators is detachably combined on engine rooms of wind power generators frame；
The main shaft that boring tool holder passes through coupling body connecting machine tool；Shaft supporting frame is oriented to be detachably connected in engine rooms of wind power generators, and
Position is being processed the end in hole；It is being oriented to bearing of the centre position provided with the connection axis of guide of shaft supporting frame；At position of bearings
Provided with lubricating oil outlet；The axis for being processed hole is identical with the axis of the axis of guide.
The axis in the processed hole and the axis of the axis of guide are all levels.The bearing is copper sheathing.The wind-force hair
Motor cabin frame includes multiple parallel supports；The upper limb of each support and the profile pair of the relevant position of engine rooms of wind power generators
Should.
This boring cutter system, clamping workpiece is fixed on special clamp tool, with the hole location and installation annex bearings of workpiece φ 840
Edge copper sheathing in seat, its bearing block, additional oil lubricating, then knife rest is arranged on machine tool chief axis, live spindle band cutter adds
Refer to accompanying drawing 4 in work workpiece aperture.
A kind of design method of above-mentioned boring cutter system, step includes：
Step 1) structural analysis first is carried out to workpiece to be machined：
Because being influenceed not processing on vertical car by Workpiece structure feature at all.Justified down with φ 4200 assuming that laying flat on one's back, that
The stroke of the feed shaft (Z axis and W axles) of lathe can not be met, and be interfered as shown in Figure 1 by 1809 distances, next to that size is public
Difference can not be met with line position tolerance.
Step 2) redesign workpiece clamping fixture structure：
Workpiece side into clamping through multi-party decide through discussion, workpiece 1809 is mainly avoided apart from interference, makes to feed during processing
Axle outreach is shorter, easily ensures size and line position tolerance.
Workpiece is positioned using half-circle-arc shape, workpiece center of gravity can be distributed on the whole table top of workbench, make work top
It is uniform by gravity.
Step 3) and then design boring tool holder：
After processing technology is established, it is related that each item data of aggregate machine tool data relevant with Workpiece structure start design knife rest
Significant dimensions.Many related datas are consulted on material selection and combine some related experiences of going together, determine to use aviation aluminium, by
Cutter frame structure is limited, and is difficult commercially to find unitary block of aluminum material, and through analysis using assembly, from 75mm thickness in aluminium sheet, increase connects
Contacting surface increases fastening point simultaneously, refer to accompanying drawing 3.
Step 4) required technological requirement is this boring cutter system in use：
Therefore knife rest is that can not bear the weight completely by lathe itself from weighing about 750kg, using the holes of workpiece φ 840 with
Screwed hole installs the support of annex bearing block, refers to accompanying drawing 4.Processed by the examination of different cutting output and cutting parameter, finally compared with
Good parameter be the unilateral 3mm of cutting output φ 6, revolution be S=16 revs/min, feeding be F=4.2mm/ points.
As long as aperture can complete roughing and finishing in 54 hours as shown in accompanying drawing 1,2.After laser detection, all chis
Very little tolerance and line position tolerance and finish are in the claimed range of diagram.
Claims (6)
1. a kind of boring tool holder for processing engine rooms of wind power generators, it is characterized in that including the axis of guide, tool arm and boring cutter composite module；
The top of the axis of guide is vertically connected on the centre position of tool arm from the side of tool arm, constitutes " T " font；Boring cutter is combined
Module has two, and they are connected to the end of left and right two of tool arm；
The tool arm includes girder and auxiliary beam；Auxiliary beam is detachably connected to the left and right ends of girder；
The girder includes being fixedly connected by one or more posts between two parallel crossbeams, two crossbeams；The axis of guide connects
The centre position of girder is connected on, and the axis of guide and two crossbeams are all connected；
Each auxiliary beam includes being fixedly connected by one or more posts between two parallel crossbeams, two crossbeams；
The mechanism being connected with boring cutter composite module is designed with the left and right two ends of girder and auxiliary beam；
Also include the coupling body for connecting machine tool main shaft；The coupling body is connected to the centre position of tool arm, and axle-linked machine
Structure is identical with the axis of the axis of guide；
Also include oil circuit, one end of oil circuit is in boring cutter composite module position, the port of export of the outside oil circuit of other end connection；
The material of the tool arm uses aviation wrought aluminium 7050, and thickness is 80 ± 2mm；Fastening point between horizontal beam and column passes through stud
Fixed, stud spacing is 70mm；Spacing between adjacent pillars is 360mm；
The axis of guide is after being processed using nitrated steel 38CrMoA1, first to carry out modifier treatment, then the surface of the axis of guide is carried out
Nitrogen treatment, makes case hardness reach HV >=800；Then key position is ground, the key position includes the axis of guide and shaft coupling
Coupling part between joint face, the axis of guide and the tool arm of mechanism；Ground, the surface smoothness of key position reaches Ra0.8,
Ensure axis of guide axle external diameter h6 tolerances simultaneously.
2. boring tool holder according to claim 1, it is characterized in that being connected between the axis of guide and tool arm by key；
The screwed hole for connecting tool arm is provided with the outer wall of the axis of guide, the screwed hole pair with being connected tool arm is provided with tool arm
The through hole answered, each through hole, the screwed hole of connection tool arm are bolted；
The opposite side of tool arm is stretched out on the top of the axis of guide, and the screwed hole for connecting coupling body is provided with the axis of guide, is used for
Axis of the axis of the screwed hole of connection coupling body perpendicular to the axis of guide；For connect the screwed hole of coupling body have one or
It is multiple；When having multiple for connecting the screwed hole of coupling body, they on the axis of guide axis into axial symmetry.
3. a kind of boring cutter system of the processing engine rooms of wind power generators of boring tool holder of use claim 1 or 2, it is characterized in that including
Lathe, engine rooms of wind power generators frame, axis of guide support base and the boring tool holder；
Engine rooms of wind power generators is detachably combined on engine rooms of wind power generators frame；
The main shaft that boring tool holder passes through coupling body connecting machine tool；
Shaft supporting frame is oriented to be detachably connected in engine rooms of wind power generators, and position is being processed the end in hole；In the axis of guide
Bearing of the centre position of support frame provided with the connection axis of guide；Lubricating oil outlet is provided with position of bearings；The bearing is copper sheathing；
The axis for being processed hole is identical with the axis of the axis of guide.
4. boring cutter system according to claim 3, it is characterized in that the processed hole axis and the axis of guide axis all
It is level.
5. boring cutter system according to claim 4, it is characterized in that the engine rooms of wind power generators frame is including multiple parallel
Support；The upper limb of each support is corresponding with the profile of the relevant position of engine rooms of wind power generators.
6. a kind of design method of any boring cutter system of claim 3~5, it is characterized in that step includes：
Step 1) structural analysis first is carried out to workpiece to be machined：
Because being influenceed by workpiece to be machined architectural feature, it can not be processed on vertical car, be justified it is assumed that laying flat on one's back with base plane
Down, then the feed shaft of lathe is that the stroke of Z axis and W axles can not be met；By base plane justify and be processed between hole away from
From interference, in addition, dimensional tolerance can not be met with line position tolerance；
Step 2) redesign workpiece clamping fixture structure：
Workpiece to be machined side into clamping, base plane circle is avoided with being processed the interference of the distance between hole, makes to feed during processing
Axle outreach is shorter, easily ensures size and line position tolerance；
Using multiple supports, workpiece to be machined center of gravity is distributed on the whole table top of workbench, makes work top uniform by gravity；
Step 3) and then design boring tool holder：
After processing technology is established, the data of each item data of aggregate machine tool and Workpiece structure are used as boring tool holder using aviation wrought aluminium
Material；By boring tool holder structure limit decision using assembly, from the thick aviation aluminium sheets of 80 ± 2mm, increase contact surface increases simultaneously
Fastening point；
Step 4) technological requirement of this boring cutter system in use is：
Boring tool holder, from 750kg is weighed about, is that can not bear the weight completely by lathe itself, is installed and led using the processed hole of workpiece
To axle support base；
Optimal parameter be the unilateral 3mm of cutting output, revolution be S=16 revs/min, feeding be F=4.2mm/ points.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510315602.0A CN104972151B (en) | 2015-06-10 | 2015-06-10 | Process boring tool holder, boring cutter system and its design method of engine rooms of wind power generators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510315602.0A CN104972151B (en) | 2015-06-10 | 2015-06-10 | Process boring tool holder, boring cutter system and its design method of engine rooms of wind power generators |
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| CN104972151A CN104972151A (en) | 2015-10-14 |
| CN104972151B true CN104972151B (en) | 2017-10-03 |
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| CN109465470A (en) * | 2018-11-15 | 2019-03-15 | 北京沙河冶金机械制造有限公司 | A kind of knife bar on console mode boring and milling machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0055423A2 (en) * | 1980-12-27 | 1982-07-07 | Toyoda Koki Kabushiki Kaisha | Boring tool holder with probes for measuring bore |
| CN201720466U (en) * | 2010-07-15 | 2011-01-26 | 湖北工业大学 | Multifunctional tool rest for boring lathe |
| CN202162407U (en) * | 2011-06-09 | 2012-03-14 | 广州新成机械技术有限公司 | Portable boring machine |
| CN202571369U (en) * | 2012-04-12 | 2012-12-05 | 武汉利德工业技术服务有限公司 | Horizontal CNC (Computerized Numerical Control) single-bar boring machine tool for machining motor base bores |
| CN203125127U (en) * | 2012-12-19 | 2013-08-14 | 上海振华重工(集团)股份有限公司 | Machining device of large-scale gyration structure |
| CN204843015U (en) * | 2015-06-10 | 2015-12-09 | 江苏钢锐精密机械有限公司 | Boring cutter frame and boring cutter system in processing aerogenerator cabin |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5615903A (en) * | 1979-07-17 | 1981-02-16 | Agency Of Ind Science & Technol | Compensating method for tool position in boring |
-
2015
- 2015-06-10 CN CN201510315602.0A patent/CN104972151B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0055423A2 (en) * | 1980-12-27 | 1982-07-07 | Toyoda Koki Kabushiki Kaisha | Boring tool holder with probes for measuring bore |
| CN201720466U (en) * | 2010-07-15 | 2011-01-26 | 湖北工业大学 | Multifunctional tool rest for boring lathe |
| CN202162407U (en) * | 2011-06-09 | 2012-03-14 | 广州新成机械技术有限公司 | Portable boring machine |
| CN202571369U (en) * | 2012-04-12 | 2012-12-05 | 武汉利德工业技术服务有限公司 | Horizontal CNC (Computerized Numerical Control) single-bar boring machine tool for machining motor base bores |
| CN203125127U (en) * | 2012-12-19 | 2013-08-14 | 上海振华重工(集团)股份有限公司 | Machining device of large-scale gyration structure |
| CN204843015U (en) * | 2015-06-10 | 2015-12-09 | 江苏钢锐精密机械有限公司 | Boring cutter frame and boring cutter system in processing aerogenerator cabin |
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