CN208276196U - Inner hole step Precision Machining molding boring cutter - Google Patents
Inner hole step Precision Machining molding boring cutter Download PDFInfo
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- CN208276196U CN208276196U CN201820743479.1U CN201820743479U CN208276196U CN 208276196 U CN208276196 U CN 208276196U CN 201820743479 U CN201820743479 U CN 201820743479U CN 208276196 U CN208276196 U CN 208276196U
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Abstract
The utility model discloses inner hole step Precision Machining molding boring cutters, including boring cutter ontology, the boring cutter ontology includes the cutter head and knife handle for being sequentially connected simultaneously coaxial line, the cutter head is multi-stage stairs axis, the distal end faces of the maximum diameter axis body of cutter head are connect with knife handle, several chip pockets are provided on the side wall of cutter head, one end on the chip pocket far from knife handle is connected to the distal end faces of the minimum diameter axis body of cutter head, one end on the side cell wall of chip pocket far from cutter head axis is provided with set of blades, the set of blades includes the blade of several bore holes, blade in each chip pocket distinguishes one section of axis body of each corresponding multi-stage stairs axis, and with close to knife handle, the aperture that blade is capable of processing is sequentially increased.Multi-stage stairs hole can be disposably processed by the utility model, simplifies the procedure of processing in traditional multi-stage stairs hole, improves processing efficiency, and improve the concentricity of each hole section in multi-stage stairs hole.
Description
Technical field
The utility model relates to cutter fields, and in particular to inner hole step Precision Machining molding boring cutter.
Background technique
Boring cutter is one kind of cutting tool for boring, is mainly used in hole machined.Boring cutter is usually circle handle, also has larger workpiece to make
With square knife bar, it is generally found from vertical vehicle.The most common occasion of boring cutter be exactly in hole machined, reaming, profiling etc. once in a while also can be by boring cutter
Using with Excircle machining.
In machining, when processing multi-stage stairs hole part, needing first will be maximum in multi-stage stairs hole cutter using one
The hole machined of diameter comes out, then tool changing, next right with the hole in second largest aperture of second tool sharpening, then tool changing progress
The processing in the hole of size is answered, until the smallest hole machined of diameter in multi-stage stairs hole is come out.This processing method, needs repeatedly
Tool changing, the cutter replaced with to each requires to reinstall or rotary cutter seat, and step is not only cumbersome, processing efficiency
It is low, at the same the non-cutting time for often changing a cutter at 5~10 seconds, lead to that the overall processing time is long, utilization rate of equipment and installations is low；And because
Also result in multi-stage stairs hole that each hole concentricity is poor, hole surface is of poor quality for the error of multiple tool changing resetting.
Utility model content
The utility model aim is that providing inner hole step Precision Machining forms boring cutter, and it is more to solve existing boring cutter processing
Grade stepped hole needs tool changing repeatedly, and step is not only cumbersome, processing efficiency is low, while often changing the non-cutting time of a cutter 5
~10 seconds, lead to that the overall processing time is long, utilization rate of equipment and installations is low；And because the error of multiple tool changing resetting also results in
Each hole concentricity is poor in multi-stage stairs hole, hole surface is of poor quality.Therefore the utility model designs inner hole step Precision Machining
Simplify the procedure of processing in traditional multi-stage stairs hole to once complete multi-stage stairs hole machined with forming reamer, improves and add
Work efficiency rate improves utilization rate of equipment and installations, reduces non-cutting time, and improve the concentricity of each hole section in multi-stage stairs hole.
In the utility model, multi-stage stairs hole is called multi-step hole, and multi-stage stairs axis is called multi-step axis.
The utility model is achieved through the following technical solutions:
Inner hole step Precision Machining use molding boring cutter, including boring cutter ontology, the boring cutter ontology include being sequentially connected and being total to
The cutter head and knife handle of axis, the cutter head are multi-stage stairs axis, and the distal end faces of the maximum diameter axis body of cutter head are connect with knife handle,
Be provided with several chip pockets on the side wall of cutter head, one end on the chip pocket far from knife handle with the minimum diameter axis body of cutter head
Distal end faces connection, be provided with set of blades, the blade far from one end of cutter head axis on the side cell wall of chip pocket
Group includes the blade of several bore holes, and the blade in each chip pocket distinguishes one section of axis body of each corresponding multi-stage stairs axis,
And as close to knife handle, the aperture that blade is capable of processing is sequentially increased.
When the stepped hole of required processing is level Four stepped hole, then the cutter head with level Four Step Shaft is selected, meanwhile, level Four
The length and diameter of Step Shaft match with the length of the required level Four stepped hole processed and diameter, then by knife handle
Upper one end and machine tool mounting base far from cutter head is assembled, and lathe is then started, so that needed for the utility model is on workpiece
Position processes level Four stepped hole.
Multi-stage stairs hole can be disposably processed by the utility model, simplifies the procedure of processing in traditional multi-stage stairs hole,
Processing efficiency is improved, and improves the concentricity of each hole section in multi-stage stairs hole.
In the Boring Process in hole, entered in chip pocket by the iron filings under blade boring, and as the progress of hole machined exists
Under the booster action of center bath, iron filings are moved to workpiece surface from chip pocket, avoid when not having dregs guiding groove, iron filings adherency
Cause hole wall to squeeze bad situation by iron filings on hole wall to occur.
Blade is arranged on the cell wall of chip pocket simultaneously, relative to directly blade being mounted on cutter head side wall,
Since chip pocket has certain open space, convenient for the installation of blade, the platform that each blade institute's boring goes out can be further improved
The concentricity in rank hole；And work as blade abrasion, when needing replacing blade, moreover it is possible in the open space of chip pocket, improve blade more
Change efficiency and convenience.
Further, one end on the side cell wall of the chip pocket far from cutter head axis is provided with quantity and blade
The consistent mounting groove of the quantity of blade in group, the blade are respectively welded on respectively in a mounting groove.
Welding is convenient for integrally welded with cutter head by blade, conducive to the boring operation of blade, simultaneously because blade is mounted on
In chip pocket, therefore it is convenient for the welding of blade.
Further, the cutter head is followed successively by Step Shaft I, Step Shaft from most path to maximum diameter for level Four Step Shaft
II, Step Shaft III and Step Shaft IV, corresponding blade is followed successively by blade I, blade II, blade III and blade IV, with blade
Corresponding mounting groove is followed successively by slot I, slot II, slot III and slot IV.
Further, the slot II is connected to the face relative to each other of slot III, forms an elongated slot, the blade II and blade
III face relative to each other connection, forms a rimmer knife, and far from cutter head axis on the connecting portion between blade II and blade III
One end of line is provided with chamfering.
When the length dimension of Step Shaft II is smaller, blade II is undersized on cutter head axial length and lead in order to prevent
Cause the stationary plane of blade II not enough, the case where then blade II being caused to fall off from cutter head appearance, can be by blade II and blade III
Face relative to each other connection, a rimmer knife is formed, in order to the boring operation of blade.
Simultaneously as blade II and blade III are connected to each other to form an integral knife blade, therefore can be in blade II and knife
One end on connecting portion between piece III far from cutter head axis is provided with chamfering, so that while ladder hole machined, by phase
Chamfering is carried out between adjacent two holes, further improves processing efficiency.
Further, close to one end rounded corner of knife handle, the other end of slot I and the distal end faces of Step Shaft I on the slot I
Connection, the elongated slot and slot III are along the equal rounded corner in the both ends of cutter head axis, the blade positioned at the shape of one end of mounting groove
Size is consistent with the geomery of corresponding mounting groove.
Each mounting groove carries out rounded corner, when avoiding boring, each mounting groove on cutter head by excessive stresses or
The case where stress is concentrated is generated in right angle, rounded corner is conducive to improve the service life of cutter head.
Further, one end in the set of blades on blade corresponding with minimum diameter axis body far from knife handle is pierced by most path
The distal end faces of axis body.
Insert is pierced by the end face of major part, convenient for drilling when boring.
Further, several connecting holes, the company are provided with along the axis of cutter head in the slot bottom of the chip pocket
It connects the one end in hole to be connected to the interior cold hole for cutting fluid apertures circulation on cutter head, the other end is connected to chip pocket.
Connecting hole is convenient in time carrying out around coolant liquid water conservancy diversion to each blade at cooling lubrication each blade
Reason.
Further, the axis of the connecting hole intersects with the axis of cutter head, and the one end of connecting hole far from cutter head axis
Extend to the direction far from knife handle.
Usually in hole machined, the axis of cutter is perpendicular to horizontal plane, and cutter head is located at knife handle close to the side on ground, connects
The one end of hole far from cutter head axis extends to the direction far from knife handle, convenient under the effect of gravity by coolant liquid water conservancy diversion to each knife
Around piece.
The utility model compared with prior art, has the following advantages and benefits:
1, the utility model inner hole step Precision Machining molding boring cutter, can disposably process multi-stage stairs hole, simplify and pass
The procedure of processing in the multi-stage stairs hole of system improves processing efficiency, and improves the concentricity of each hole section in multi-stage stairs hole；
2, the utility model inner hole step Precision Machining molding boring cutter, blade is arranged on the cell wall of chip pocket, phase
For directly blade being mounted on cutter head side wall, since chip pocket has certain open space, convenient for the installation of blade,
The concentricity for the stepped hole that each blade institute's boring goes out can be further improved；And work as blade abrasion, when needing replacing blade, also
Blade exchange efficiency and convenience can be improved in the open space of chip pocket；
3, the utility model inner hole step Precision Machining molding boring cutter, each mounting groove carry out rounded corner, avoid boring
When cutting, each mounting groove on cutter head generates the case where stress is concentrated by excessive stresses or in right angle, and rounded corner is conducive to
Improve the service life of cutter head.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the utility model；
The end view of Fig. 2 the utility model；
Fig. 3 is the structural schematic diagram of mounting groove；
Fig. 4 is the structural schematic diagram of rimmer knife；
Fig. 5 is the structural schematic diagram of elongated slot；
Fig. 6 is the structural schematic diagram of the rimmer knife of embodiment 5；
Fig. 7 is the structural schematic diagram of the rimmer knife of embodiment 6.
Label and corresponding parts title in attached drawing:
1- cutter head, 2- knife handle, 3- chip pocket, 4- blade, 5- Step Shaft I, 6- Step Shaft II, 7- Step Shaft III, 8- step
Axis IV, 9- blade I, 10- blade II, 11- blade III, 12- blade IV, 13- slot I, 14- slot II, 15- slot III, 16- slot IV, 17-
Mounting groove, 18- elongated slot, 19- rimmer knife, 20- connecting hole, 21- chamfering.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment 1
As shown in Figure 1-Figure 3, the utility model inner hole step Precision Machining molding boring cutter, including boring cutter ontology, it is described
Boring cutter ontology includes the cutter head 1 and knife handle 2 for being sequentially connected simultaneously coaxial line, and the cutter head 1 is multi-stage stairs axis, the maximum of cutter head 1
The distal end faces of diameter axis body are connect with knife handle 2, are provided with several chip pockets 3 on the side wall of cutter head 1, on the chip pocket 3
One end far from knife handle 2 is connected to the distal end faces of the minimum diameter axis body of cutter head 1, separate on the side cell wall of chip pocket 3
One end of 1 axis of cutter head is provided with set of blades, and the set of blades includes the blade 4 of several bore holes, in each chip pocket 3
Blade 4 distinguish one section of axis body of each corresponding multi-stage stairs axis, and as close to knife handle 2, the aperture that blade 4 is capable of processing is successively
Increase.
When the stepped hole of required processing is level Four stepped hole, then the cutter head 1 with level Four Step Shaft is selected, meanwhile, four
The length and diameter of grade Step Shaft match with the length of the required level Four stepped hole processed and diameter, then by knife
One end and machine tool mounting base on handle 2 far from cutter head 1 are assembled, and then start lathe, so that the utility model is on workpiece
Required position processes level Four stepped hole.
Multi-stage stairs hole can be disposably processed by the utility model, simplifies the procedure of processing in traditional multi-stage stairs hole,
Processing efficiency is improved, and improves the concentricity of each hole section in multi-stage stairs hole.
In the Boring Process in hole, entered in chip pocket 3 by the iron filings under 4 boring of blade, and with the progress of hole machined,
Under the booster action of center bath, iron filings are moved to workpiece surface from chip pocket 3, avoid when not having dregs guiding groove, iron filings
It is adhered on hole wall and causes hole wall to squeeze bad situation by iron filings and occur.
Blade 4 is arranged on the cell wall of chip pocket 3 simultaneously, relative to directly blade is mounted on 1 side wall of cutter head
It says, since there is chip pocket 3 certain open space can further improve 4 borings of each blade convenient for the installation of blade 4
The concentricity of stepped hole out；And when blade 4 is worn, when needing replacing blade 4, moreover it is possible in the open space of chip pocket 3, mention
High blade 4 replaces efficiency and convenience.
Embodiment 3
The present embodiment is on the basis of embodiment 1, to further illustrate to the installation of blade 4.
As shown in Figure 1-Figure 3, the utility model inner hole step Precision Machining molding boring cutter, the one of the chip pocket 3
One end on side channel wall far from 1 axis of cutter head is provided with quantity mounting groove 17 consistent with the quantity of blade 4 in set of blades, described
Blade 4 is respectively welded on respectively in a mounting groove 17.
Welding is convenient for integrally welded with cutter head by blade, conducive to the boring operation of blade 4, simultaneously because blade 4 is installed
In chip pocket 3, therefore it is convenient for the welding of blade.
Embodiment 3
The present embodiment is to further illustrate on the basis of embodiment 2 to modular constructions such as multi-stage stairs axis.
As shown in Figure 1-Figure 3, the utility model inner hole step Precision Machining molding boring cutter, the cutter head 1 are level Four platform
Rank axis is followed successively by Step Shaft I 5, Step Shaft II 6, Step Shaft III 7 and Step Shaft IV 8, is corresponding to it from most path to maximum diameter
Blade 4 be followed successively by blade I 9, blade II 10, blade III 11 and blade IV 12, mounting groove 17 corresponding with blade 4 is followed successively by slot
I 13, slot II 14, slot III 15 and slot IV 16.
Embodiment 4
The present embodiment is to further illustrate on the basis of embodiment 2 to the utility model.
As shown in fig. 4-5, the utility model inner hole step Precision Machining molding boring cutter, the slot II 14 and slot III 15
Face relative to each other connection, form an elongated slot 18, the blade II 10 connect with the face relative to each other of blade III 11, formation one
A rimmer knife 19, and one end on the connecting portion between blade II 10 and blade III 11 far from 1 axis of cutter head is provided with chamfering
21。
When the length dimension of Step Shaft II 6 is smaller, blade II 10 is undersized on 1 axial length of cutter head in order to prevent
And cause the stationary plane of blade II 10 not enough, the case where then blade II 10 being caused to fall off from cutter head 1 appearance, can be by blade II
10 connect with the face relative to each other of blade III 11, form a rimmer knife 19, in order to the boring operation of blade.
Simultaneously as blade II 10 and blade III 11 are connected to each other to form an integral knife blade, therefore can be in blade II
One end on connecting portion between 10 and blade III 11 far from 1 axis of cutter head is provided with chamfering 21, so that in ladder hole machined
While, chamfering will be carried out between adjacent two hole, further improves processing efficiency.
Embodiment 5
The present embodiment is that the further explanation of the first embodiment is made to chamfering 21 on the basis of embodiment 4.
As shown in fig. 6, the utility model inner hole step Precision Machining molding boring cutter, chamfering 21 are circular arc chamfering, chamfering
21 will be in the end face arc transition far from knife handle 2 to end face of the blade II 10 far from 1 axis of cutter head of blade III 11.
Embodiment 6
The present embodiment is that the further explanation of second of embodiment is made to chamfering 21 on the basis of embodiment 4.
As shown in fig. 7, the utility model inner hole step Precision Machining molding boring cutter, chamfering 21 are chamfer, chamfering
21 end face by blade III 11 far from knife handle 2 is transitioned on end face of the blade II 10 far from 1 axis of cutter head by an inclined-plane 22,
?.Between the end face of inclined-plane 22 and blade III 11 far from knife handle 2 and inclined-plane and end face of the blade II 10 far from 1 axis of cutter head
Between be provided with circular arc chamfering 23.
Embodiment 7
The present embodiment is to further illustrate on the basis of embodiment 4 to mounting groove.
As shown in fig. 4-5, the utility model inner hole step Precision Machining, which is used, forms boring cutter, close to knife on the slot I 13
The other end of one end rounded corner of handle 2, slot I 13 is connected to the distal end faces of Step Shaft I 5, and the elongated slot 18 and slot III 15 are along knife
The equal rounded corner in both ends of first 1 axis is located at the geomery of one end of mounting groove 17 and corresponding mounting groove 17 on the blade 4
Geomery it is consistent.
Each mounting groove carries out rounded corner, when avoiding boring, each mounting groove on cutter head 2 by excessive stresses or
The case where stress is concentrated is generated in right angle, rounded corner is conducive to improve the service life of cutter head 2.
Embodiment 8
The present embodiment is to further illustrate on the basis of embodiment 4 to blade 4.
As shown in fig. 4-5, the utility model inner hole step Precision Machining molding boring cutter, in the set of blades with minimum
One end on the corresponding blade 4 of diameter axis body far from knife handle 2 is pierced by the distal end faces of minimum diameter axis body.
Insert 4 is pierced by the end face of major part 1, convenient for drilling when boring.
Embodiment 9
The present embodiment is on the basis of embodiment 1, to further illustrate to chip pocket 3.
As Figure 1-Figure 5, the utility model inner hole step Precision Machining molding boring cutter, there are two the chip pockets 3,
The set of blades has two groups, and the axis centre of chip pocket 3 and set of blades respectively along cutter head 1 is symmetrical.
Chip pocket 3 and set of blades it is equal there are two, and be symmetrically dispersed in 1 center line two sides of cutter head, when boring, two groups of blades
Boring hole wall, the radial force generated when so as to cut mutually balance each other group simultaneously, can increase cutting data, improve production efficiency.
Embodiment 10
The present embodiment is on the basis of embodiment 1, to further illustrate to the cooling and lubricating structure of the utility model.
As Figure 1-Figure 5, the utility model inner hole step Precision Machining molding boring cutter, in the slot of the chip pocket 3
Bottom is provided with several connecting holes 20 along the axis of cutter head 1, and one end of the connecting hole 20 is used to cut on cutter head 1
The interior cold hole connection of fluid apertures circulation, the other end are connected to chip pocket 3.
Connecting hole 10 is convenient for that cooling profit can be carried out to each blade 4 in time for around coolant liquid water conservancy diversion to each blade 4
Sliding processing.
Further, the axis of the connecting hole 20 intersects with the axis of cutter head 1, and connecting hole 20 is far from 1 axis of cutter head
One end to far from knife handle 2 direction extend, and with the axis of cutter head 1 far from knife handle 2 one end formed acute angle A, it is described sharp
Angle A is 20 ° -40 °, preferably A=30 ° of ditch.
Usually in hole machined, the axis of cutter is perpendicular to horizontal plane, and cutter head is located at knife handle close to the side on ground, connects
The one end of hole 20 far from 1 axis of cutter head extends to the direction far from knife handle 2, convenient under the effect of gravity by coolant liquid water conservancy diversion to respectively
Around a blade 4.
Preferably, the connecting hole 20 in each chip pocket 3 there are three.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (10)
1. inner hole step Precision Machining molding boring cutter, including boring cutter ontology, the boring cutter ontology includes being sequentially connected and coaxial
The cutter head (1) and knife handle (2) of line, it is characterised in that: the cutter head (1) is multi-stage stairs axis, the maximum diameter axis body of cutter head (1)
Distal end faces are connect with knife handle (2), are provided with several chip pockets (3) on the side wall of cutter head (1), on the chip pocket (3)
One end far from knife handle (2) is connected to the distal end faces of the minimum diameter axis body of cutter head (1), in the side cell wall of chip pocket (3)
Upper one end far from cutter head (1) axis is provided with set of blades, and the set of blades includes the blade (4) of several bore holes, often
Blade (4) in a chip pocket (3) distinguishes one section of axis body of each corresponding multi-stage stairs axis, and with close to knife handle (2), blade
(4) aperture being capable of processing is sequentially increased.
2. inner hole step Precision Machining according to claim 1 molding boring cutter, it is characterised in that: in the chip pocket
(3) one end on side cell wall far from cutter head (1) axis is provided with quantity and the quantity of blade in set of blades (4) is consistent
Mounting groove (17), the blade (4) are respectively welded on respectively in a mounting groove (17).
3. inner hole step Precision Machining according to claim 2 molding boring cutter, it is characterised in that: the cutter head (1) is
Level Four Step Shaft is followed successively by Step Shaft I (5), Step Shaft II (6), Step Shaft III (7) and Step Shaft from most path to maximum diameter
IV (8), corresponding blade (4) is followed successively by blade I (9), blade II (10), blade III (11) and blade IV (12), with knife
The corresponding mounting groove (17) of piece (4) is followed successively by slot I (13), slot II (14), slot III (15) and slot IV (16).
4. inner hole step Precision Machining according to claim 3 molding boring cutter, it is characterised in that: the slot II (14) and
The face relative to each other of slot III (15) is connected to, and forms an elongated slot (18), the phase each other of the blade II (10) and blade III (11)
Opposite connection, forms a rimmer knife (19), and far from cutter head on the connecting portion between blade II (10) and blade III (11)
(1) one end of axis is provided with chamfering (21).
5. inner hole step Precision Machining according to claim 4 molding boring cutter, it is characterised in that: on the slot I (13)
One end rounded corner close to knife handle (2), the other end of slot I (13) are connected to the distal end faces of Step Shaft I (5), the elongated slot
(18) and slot III (15) is along the equal rounded corner in both ends of cutter head (1) axis, and the one end of mounting groove (17) is located on the blade (4)
Geomery is consistent with the geomery of corresponding mounting groove (17).
6. inner hole step Precision Machining according to any one of claims 1-5 molding boring cutter, it is characterised in that: described
One end in set of blades on blade (4) corresponding with minimum diameter axis body far from knife handle (2) is pierced by the distal end faces of minimum diameter axis body.
7. inner hole step Precision Machining according to any one of claims 1-5 molding boring cutter, it is characterised in that: described
There are two chip pockets (3), and the set of blades has two groups, and chip pocket (3) and set of blades are respectively along the axis of cutter head (1)
The heart is symmetrical.
8. inner hole step Precision Machining according to any one of claims 1-5 molding boring cutter, it is characterised in that: in institute
It states the slot bottom of chip pocket (3) and is provided with several connecting holes (20) along the axis of cutter head (1), the one of the connecting hole (20)
It holds and is connected to the interior cold hole for cutting fluid apertures circulation on cutter head (1), the other end is connected to chip pocket (3).
9. inner hole step Precision Machining according to claim 8 molding boring cutter, it is characterised in that: the connecting hole (20)
Axis intersect with the axis of cutter head (1), and connecting hole (20) far from cutter head (1) axis one end to far from knife handle (2) side
To extension.
10. inner hole step Precision Machining according to claim 9 molding boring cutter, it is characterised in that: each chip pocket (3)
In connecting hole (20) there are three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820743479.1U CN208276196U (en) | 2018-05-18 | 2018-05-18 | Inner hole step Precision Machining molding boring cutter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820743479.1U CN208276196U (en) | 2018-05-18 | 2018-05-18 | Inner hole step Precision Machining molding boring cutter |
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| CN208276196U true CN208276196U (en) | 2018-12-25 |
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ID=64730585
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| CN201820743479.1U Active CN208276196U (en) | 2018-05-18 | 2018-05-18 | Inner hole step Precision Machining molding boring cutter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109732281A (en) * | 2018-12-29 | 2019-05-10 | 东方电气集团东方锅炉股份有限公司 | The replacing options of screw thread tube socket on heat exchanger cylinder |
-
2018
- 2018-05-18 CN CN201820743479.1U patent/CN208276196U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109732281A (en) * | 2018-12-29 | 2019-05-10 | 东方电气集团东方锅炉股份有限公司 | The replacing options of screw thread tube socket on heat exchanger cylinder |
| CN109732281B (en) * | 2018-12-29 | 2020-05-26 | 东方电气集团东方锅炉股份有限公司 | Method for replacing threaded pipe seat on heat exchanger barrel |
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