CN106734651A - A kind of closing method of flow regulator bridge pipe - Google Patents
A kind of closing method of flow regulator bridge pipe Download PDFInfo
- Publication number
- CN106734651A CN106734651A CN201611118685.5A CN201611118685A CN106734651A CN 106734651 A CN106734651 A CN 106734651A CN 201611118685 A CN201611118685 A CN 201611118685A CN 106734651 A CN106734651 A CN 106734651A
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- roller
- rolling machine
- cylindrical
- bridge pipe
- screw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/84—Making other particular articles other parts for engines, e.g. connecting-rods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of closing method of flow regulator bridge pipe, the method forms Flow-rate adjustment device assembly by the way that bridge pipe is carried out into closing at corresponding annular groove, and its specific method step is as follows：(1) equipment screw-rolling machine is selected；(2) roller is manufactured and designed；(3) roller is installed；(4) Assembly part；(5) pressure of thread rolling machine is adjusted；(6) close up.The physical dimension of present invention foundation Flow-rate adjustment device assembly, with reference to the parameter designing roller of screw-rolling machine；On screw-rolling machine, using continuous, spinning mode, spinning force is symmetrical, circumferentially continuous；Complete to close up on screw-rolling machine, closing in quality is good, bottling technique stabilization is simple to operate, solves the part closing in problem in small inner chamber and different holes, can be in machining technology field wide popularization and application.
Description
Technical field
The invention belongs to machinery manufacturing technology field, a kind of closing method of flow regulator bridge pipe is specifically related to.
Background technology
It is as shown in Figure 1 and Figure 2 certain type aero-engine Flow-rate adjustment device assembly.Component considers 2 and bridge pipe by housing 1, oil
3 compositions, the material of housing 1 is steel, and the material of oily filter 2 and bridge pipe 3 is aluminium alloy；The wall thickness of bridge pipe 3 is δ, and δ values are smaller；Bridge
Adapter 3 is deformed by closing up, and is firmly stuck in housing 1,4 outer grooves of oil filter 3, becomes housing 1, oil filter 2 and bridge pipe 3
Component；The development initial stage is filled the span of a man's arms using traditional two halves mould and carries out the closing in of bridge pipe 3, during actually closing up, bridge pipe 3
Split by card wound, card in land area.By analysis, reason is radius of curvature at the mould closing in curvature cylindrical less than bridge pipe 3
Radius, when closing in starts, the both sides of mould first contact with the cylindrical of bridge pipe 3, and middle part does not contact with bridge pipe 3, Closing in die
Tool contacts formation with component in point, and in addition at mould matched moulds, closing in type face is mutually passed through with die joint, forms cutting edge, so bridge joint
Pipe is hindered by card, card splits；If die face presses the outside diameter design of bridge pipe before bridge pipe closes up, the mould at closing in
, more than the radius of curvature after bridge pipe closing in shaping, during closing in, bridge pipe can not be with housing, the outer shroud groove face of oil filter for radius of curvature
Laminating, closing in can not meet design drawing requirement.Therefore two-half die bottling technique be unable to appropriate flow rate adjuster bridge pipe into
Type.
Closed up for bridge pipe, the closing method of rotary press modelling on lathe is utilized at present.When closing up, flow is clamped
The shell ends of governor assembly are cylindrical, stretched out outside lathe spindle at closing in, and in roller is installed on knife rest, lathe spindle drives stream
Amount governor assembly rotation, knife rest is moved radially, and pair of rollers sleeve pipe implements spinning；Because Flow-rate adjustment device assembly is in cantilever-shaped
State, lathe closes up, and shaping is poor, and particularly oil filter outer groove is Thin-walled Aluminum long away from main shaft retaining part, arm length, and bridge pipe
Alloy components, poor rigidity, when being closed up in oil filter 2, bridge pipe intensity can not overcome closing in radial load and deform, or even fracture, therefore
Lathe closes up and is also not suitable for the closing in of flow regulator bridge pipe.
The content of the invention
To solve the above problems, it is an object of the invention to provide a kind of closing method of flow regulator bridge pipe, the party
Method uses symmetrical, continuous spinning mode, completes to close up on screw-rolling machine, and closing in quality is good, bottling technique stabilization, operation letter
It is single, so as to solve the part closing in problem of small inner chamber and blind hole.
The present invention is achieved by following technical solution.
A kind of closing method of flow regulator bridge pipe, its specific method step is as follows：
(1) equipment screw-rolling machine is selected：Determine the flat key size on the screw-rolling machine diameter of axle and rolled thread arbor；
(2) roller is manufactured and designed：Roller is designed as the rotary structure that one group of diameter is not waited, and the roller end face on roller is
Axial datum level, it is the radial reference face of roller that roller is cylindrical, is set in the roller matched with the screw-rolling machine diameter of axle on roller
Hole, and have keyway in roller middle setting；
(3) roller is installed：Two rollers are arranged on screw-rolling machine main shaft, the axial location of roller is adjusted, make two rollers
Roller end face it is in the same plane, choose cushion block, and cushion block is installed on the work top of screw-rolling machine；
(4) Assembly part：By the housing of Flow-rate adjustment device assembly and oil filter assembling in pipe orifice is bridged；
(5) pressure of thread rolling machine is adjusted：Pressure of thread rolling machine chooses 1.5MPa ± 0.1MPa；
(6) close up：Start screw-rolling machine, the main shaft of screw-rolling machine two drives the rotation of roller main shaft, and the part that will be assembled is placed in pad
In the middle of block and two rollers, oil filter end face is set to be fitted with the roller end face on roller, roller makees radial feed, what pair of rollers was assembled
The symmetrical radial compression of part, continuous spinning treats cylindrical die roll radial feed to spacing place, and after the circle of part rotation 2, roller returns original
Position, completes the closing in of flow regulator bridge pipe.
Roller material in the step (2) is 45# steel, heat treatment HRC35 ∽ 40.
Roller inner holes use H7/h6 with the cooperation of the screw-rolling machine diameter of axle in the step (2).
The roller end face left end be located at roller it is cylindrical on be respectively arranged with raised cylindrical A, raised cylindrical B, raised cylindrical
C, raised cylindrical D.
The right-hand member of the cylindrical A of left hand projection of the roller end face is right-angle surface, and left end is 45 ° of fillet surface.
The raised cylindrical B two ends are 45 ° of chamferings.
The raised cylindrical C two ends are 45 ° of chamferings.
The left end of the raised cylindrical D is right-angle surface, and right-hand member is 45 ° of fillet surface.
The right-angle surface of the raised cylindrical D is provided with that left end is cylindrical, left end it is cylindrical with housing on left side cylindrical match.
The concentricity tolerance of the profile surface of revolution pair roller endoporus of the roller is 0.03mm, and end face is to the surface of revolution and to rolling
The run-out tolerance for taking turns endoporus is 0.05mm.
The beneficial effects of the invention are as follows：
The physical dimension of present invention foundation Flow-rate adjustment device assembly, with reference to the parameter designing roller of screw-rolling machine；In screw-rolling machine
On, using continuous, spinning mode, spinning force is symmetrical, circumferentially continuous；Complete to close up on screw-rolling machine, closing in quality is good, closing in work
Skill stabilization, it is simple to operate, the part closing in problem in small inner chamber and different holes is solved, can extensively be pushed away in machining technology field
Wide application.
Brief description of the drawings
Fig. 1 is aircraft engine flow regulator component diagram；
Fig. 2 is structure enlarged diagram at the A of Fig. 1；
Fig. 3 is the structural representation of closing in roller in the present invention；
Fig. 4 is structure enlarged diagram at the B of Fig. 3；
Fig. 5 is the end view closed up in screw-rolling machine upper roller.
In figure：1- housings, 2- oil filters, 3- bridge pipes, 4- rollers, 5- cushion blocks, 6- parts, 11- left sides are cylindrical, 12- annulars
Groove D, 13- annular groove C, 21- oil filter end face, 22- annular grooves B, 23- annular groove A, 24- transition cylinder, 41- rollers
End face, 43- rollers are cylindrical, and 43- transition annular grooves, 44- end face cylinders, 45- left ends are cylindrical, 46- roller inner holes, 47- keyways,
The raised cylindrical D of 48- raised cylindrical A, 49- raised cylindrical B, 50- raised cylindrical C, 51-.
Specific embodiment
Technical scheme is further described below in conjunction with the accompanying drawings, but claimed scope is not limited to institute
State.
A kind of closing method of flow regulator bridge pipe of the present invention, its specific method step is as follows：
(1) equipment screw-rolling machine is selected：Determine the flat key size on the screw-rolling machine diameter of axle and rolled thread arbor；For roller design is provided
Input data, it is ensured that roller is harmonious with screw-rolling machine connecting portion size.
(2) roller is manufactured and designed：As shown in Figure 3, Figure 4, roller 4 is designed as the rotary structure that one group of diameter is not waited, rolling
Roller end face 41 on wheel 4 is axial datum level, and roller cylindrical 42 is the radial reference face of roller, is set on roller 4 and rolling
The roller inner holes 46 that silk arbor footpath matches, and have keyway 47 in the middle setting of roller 4.On the keyway 47 and rolled thread arbor
Flat key coordinates, and the design of general flat key connection request is pressed in its size and its cooperation；The diameter of the roller cylindrical 42 is according to screw-rolling machine
Centre-height design；Ensure that roller is harmonious with screw-rolling machine connecting portion size, rolling space is suitable.
(3) roller is installed：Two rollers 4 are arranged on screw-rolling machine main shaft, the axial location of roller 4 is adjusted, make two rollings
The roller end face 41 of wheel 4 is in the same plane, chooses the cushion block 5 of reasonable altitudes, and cushion block 5 is installed on the work of screw-rolling machine
On table top, flow regulator modular support in after cushion block 5 and beam roller centre, the axis of two rollers, Flow-rate adjustment device assembly
Axis is on horizontal plane；
(4) Assembly part：By the housing 1 of Flow-rate adjustment device assembly and the assembling of oil filter 2 in the endoporus of bridge pipe 3；
(5) pressure of thread rolling machine is adjusted：Pressure of thread rolling machine chooses 1.5MPa ± 0.1MPa；Pressure is suitable, it is ensured that close up abundant,
But housing and oil filter deformation can not be made.
(6) close up：Start screw-rolling machine, the main shaft of screw-rolling machine two drives the rotation of roller 4 main shaft, as shown in figure 5, will assemble
Part 6 is placed in the middle of the roller 4 of cushion block 5 and two, oil filter end face 21 is fitted with the roller end face 41 on roller 4, and roller 4 is made radially
Feeding, the symmetrical radial compression of part 6 that 4 pairs, roller is assembled, continuous spinning treats cylindrical die roll radial feed to spacing place, part 6
After the circle of rotation 2, roller 4 returns original position, completes Flow-rate adjustment device assembly and closes up.
Roller material in the step (2) is 45# steel, heat treatment HRC35 ∽ 40.
Roller inner holes 46 use H7/h6 with the cooperation of the screw-rolling machine diameter of axle in the step (2).
The left end of roller end face 41 be located at roller cylindrical 42 on be respectively arranged with raised cylindrical A48, raised cylindrical B49,
Raised cylindrical C50, raised cylindrical D51.
The right-hand member of the cylindrical A48 of left hand projection of the roller end face 41 is right-angle surface, and left end is 45 ° of fillet surface.
The raised cylindrical B49 two ends are 45 ° of chamferings.
The raised cylindrical C50 two ends are 45 ° of chamferings.
The left end of the raised cylindrical D51 is right-angle surface, and right-hand member is 45 ° of fillet surface.
The right-angle surface of the raised cylindrical D51 is provided with left end cylindrical 45, and left end cylindrical 45 is cylindrical with left side on housing 2
11 match.
The concentricity tolerance of the profile surface of revolution pair roller endoporus 46 of the roller 4 is 0.03mm, end face to the surface of revolution and
The run-out tolerance of pair roller endoporus 46 is 0.05mm.
With reference to embodiment implementation steps of the invention are illustrated through a step：
The flow regulator being made up of housing 1, oil filter 2, bridge pipe 3 as shown in Figure 1 and Figure 2, axial benchmark is oil filter 2
On oil filter end face 21, radial reference be oil filter 2 cylindrical φ d, the cylindrical diameter phi d of its benchmark be 15mm；Oil filter end face 21
Place right side be size be 4mm × 3.5mm outer groove, by oil filter end face 21 be successively to the left 4 annular groove A23, annular it is recessed
Groove B22, annular groove C13, annular groove D12, the depth of 4 annular grooves are 0.6mm；The right-hand member of annular groove A23 is straight
Edged surface, left end is 45 ° of fillet surfaces, is connected with transition cylinder 24 between annular groove A23 and oil filter end face 21, outside transition cylinder 24
The face of cylinder to the bottom land depth of annular groove A23 is 1.1mm, and the slot bottom width of annular groove A23 is 1mm, transition cylinder 24
Width is 1mm；The both sides of annular groove B22 are 45 ° of fillet surfaces, and annular groove B22 centers to the distance of oil filter end face 21 are
The slot bottom width of 6mm, annular groove B22 is 3mm；Annular groove C13 physical dimensions are identical with annular groove B22, annular groove
D12 is similar to the structure of annular groove A23, and its left end is right-angle surface, and right-hand member is 45 ° of fillet surfaces, the diameter of bore of bridge pipe 3
It is φ d equal to radial reference outside diameter, wall thickness is 0.6mm, and housing 1, oil filter 2 are assemblied in the two ends of bridge pipe 3, housing respectively
Left end at 1 closing in is left side cylindrical 11, and outside diameter is φ d plus 2 times of bridge pipes 3 on the basis of the diameter in left side cylindrical 11
Wall thickness, cylindrical 11 a diameter of 15+2 × 0.6=16.2mm on the left of the present embodiment, it is desirable to bridge pipe 3 in annular groove C13 and
Closing in forms Flow-rate adjustment device assembly at annular groove D12.
Closing in is carried out to above-mentioned bridge pipe 3 using method of the present invention below and forms Flow-rate adjustment device assembly, its tool
Body method step is as follows：
(1) equipment screw-rolling machine is selected：According to the size requirement for treating closing in bridge pipe 3, the selection screw-rolling machine diameter of axle is 54mm, rolling
The size of the flat key on silk arbor is 12mm；
(2) roller 4 is manufactured and designed：As shown in Figure 3, Figure 4, the material selection 45# steel of roller 4, heat treatment HRC35 ∽ 40,
Processing quantity is 2, and the physical dimension of 2 rollers 4 is identical with technical requirements；
Roller inner holes 46 are provided with roller 4, the diameter of roller inner holes 46 is identical with the screw-rolling machine diameter of axle, is 54mm,
Roller inner holes 46 use H7/h6 with the cooperation of the screw-rolling machine diameter of axle；The middle setting of roller 4 has the flat key on keyway 47 and rolled thread arbor
Coordinate, the width of keyway 47 is the cooperation of flat key on 12mm, with screw-rolling machine by general flat key requirement design；The profile of roller 4 is one
The revolving body that group diameter is not waited, the roller end face 41 on roller 4 is axial datum level, and middle part cylindrical 42 is the radial reference of roller
Face, the diameter at middle part cylindrical 42 is designed according to the centre-height of screw-rolling machine, the diameter design value at middle part cylindrical 42 in the present embodiment
It is 130mm；The left end of roller end face 41 is 4 raised cylindrical A48 of projection, raised cylindrical B49, raised cylindrical C50, raised cylindrical
D51；And raised cylindrical A48, raised cylindrical B49, raised cylindrical C50, raised cylindrical D51 respectively with flow regulator on depression
Annular groove A23, annular groove B22, annular groove C13, annular groove D12 correspondences, it is 4 raised cylindrical A48 of projection, convex
Play cylindrical B49, raised cylindrical C50, the height of projection of raised cylindrical D51 and annular groove A23, annular groove B22, annular groove
C13, annular groove D12 depth of groove it is identical, be 0.6mm；
The right-hand member of the cylindrical A48 of left hand projection of roller end face 41 is right-angle surface, and left end is 45 ° of fillet surface；It is raised cylindrical
Distance of the right side of A48 away from roller end face 41 is equal to the distance of annular groove A23 to oil filter end face 21, and L1+0.05mm=
1.05mm, wherein L1 are the width of transition cylinder, and the width of raised cylindrical A48 is L2- δ × tg22.50+0.1=0.8mm, its
Middle L2 is the width of annular groove A23, and δ is the wall thickness of bridge pipe 3；Raised cylindrical A48 and roller end face 41 are transition outer grooves
43, transition outer groove 43 is cylindrical corresponding with the transition that the annular groove A23 in oil filter 2 is filtered between end face 21 to oil, transition outer groove
The external cylindrical surface of 43 depth ratio transition cylinder 24 to annular groove A23 bottom land depth big 0.2mm, i.e. 1.1mm+0.2mm=
1.3mm。
Raised cylindrical B49 two ends are 45 ° of chamferings, and distance and the flow at raised cylindrical B49 centers to roller end face 41 are adjusted
The center for saving the annular groove B22 of device is corresponding to the distance of oil filter end face 21, and the width of as 6mm, raised cylindrical B49 is L4-2
×δ×tg22.50+ 0.2=2.7mm, wherein L4 are the width of annular groove B22, and δ is the wall thickness of bridge pipe 3, raised cylindrical
B49 is that transition outer groove 43 is connected with raised cylindrical A48, a diameter of radial reference diameter of transition outer groove 43；
The structure design of raised cylindrical C50 and raised cylindrical D51 sets similar to raised cylindrical A48, raised cylindrical B49
Meter；
The right-hand member of roller end face 41 is end face cylinder 44, and the depth of end face cylinder 44 to transition outer groove 43 is h2+1mm=
The annular width of 4.5mm, wherein h2 oil filter end face 21, value is 3.5mm in embodiment, and the width of end face cylinder 44 is 3.5mm；
The concentricity tolerance of all profile surface of revolution pair roller endoporus 46 is 0.03mm on roller 4, end face to the surface of revolution and
The run-out tolerance of pair roller endoporus 46 is 0.05mm, and the technique processed using clamped one time is ensured.
(3) roller 4 is installed：Two rollers 4 that will have manufactured and designed are arranged on screw-rolling machine main shaft, and adjust the axle of roller 4
To position, make the roller end face 41 of two rollers 4 in the same plane, choose the cushion block 5 of reasonable altitudes, and install and screw-rolling machine
Work top on；
(4) Assembly part：By housing 1, the assembling of oil filter 2 in the endoporus of bridge pipe 3；
(5) pressure of thread rolling machine is adjusted：Pressure of thread rolling machine is 1.5MPa ± 0.1MPa；
(6) close up：Start screw-rolling machine, the main shaft of screw-rolling machine two drives the rotation of roller main shaft, as shown in figure 5, will assemble
Part 6 is placed in the middle of the roller 4 of cushion block 5 and two, and oil filter end face 21 is fitted with the roller end face 41 on roller 4, and roller 4 is made radially to enter
Give, roller 4 treats cylindrical die roll radial feed to spacing place, Assembly part rotation to the symmetrical radial compression of Assembly part, continuous spinning
After 2 circles, roller 4 returns original position, completes Flow-rate adjustment device assembly and closes up.
Claims (10)
1. a kind of closing method of flow regulator bridge pipe, it is characterised in that：Specific method step is as follows：
(1) equipment screw-rolling machine is selected：Determine the flat key size on the screw-rolling machine diameter of axle and rolled thread arbor；
(2) roller is manufactured and designed：Roller (4) is designed as the rotary structure that one group of diameter is not waited, the roller end face on roller (4)
(41) it is axial datum level, roller cylindrical (42) is the radial reference face of roller, is set and screw-rolling machine diameter of axle phase on roller (4)
The roller inner holes (46) of matching, and have keyway (47) in roller (4) middle setting；
(3) roller is installed：Two rollers (4) that will be designed in step (2) adjust roller (4) on screw-rolling machine main shaft
Axial location, make the roller end face (41) of two rollers (4) in the same plane, choose cushion block (5), and by cushion block (5) peace
On work top loaded on screw-rolling machine, while making the axis of the axis of two rollers (4) and part (6) be in same level；
(4) Assembly part：The housing (1) of Flow-rate adjustment device assembly and oil filter (2) are assemblied in bridge pipe (3) endoporus；
(5) pressure of thread rolling machine is adjusted：Pressure of thread rolling machine chooses 1.5MPa ± 0.1MPa；
(6) close up：Start screw-rolling machine, the main shaft of screw-rolling machine two drives the rotation of roller (4) main shaft, and the part (6) that will be assembled is placed in
In the middle of cushion block (5) and two rollers (4), oil filter end face (21) is set to be fitted with the roller end face (41) on roller (4), roller (4) is made
Radial feed, to the symmetrical radial compression of the part (6) that assembles, continuous spinning treats cylindrical die roll radial feed to spacing to roller (4)
Place, after the circle of part (6) rotation 2, roller (4) returns original position, completes the closing in of flow regulator bridge pipe.
2. the closing method of a kind of flow regulator bridge pipe according to claim 1, it is characterised in that：The step
(2) roller material in is 45# steel, heat treatment HRC35 ∽ 40.
3. the closing method of a kind of flow regulator bridge pipe according to claim 1, it is characterised in that：The step
(2) roller inner holes (46) use H7/h6 with the cooperation of the screw-rolling machine diameter of axle in.
4. the closing method of a kind of flow regulator bridge pipe according to claim 1, it is characterised in that：The roller end
Face (41) left end is located on roller cylindrical (42) and is respectively arranged with raised cylindrical A (48), raised cylindrical B (49), raised cylindrical C
(50), raised cylindrical D (51).
5. the closing method of a kind of flow regulator bridge pipe according to claim 1, it is characterised in that：The roller end
The right-hand member of the cylindrical A of the left hand projection (48) in face (41) is right-angle surface, and left end is 45 ° of fillet surface.
6. the closing method of a kind of flow regulator bridge pipe according to claim 4, it is characterised in that：It is described raised outer
Circle B (49) two ends are 45 ° of chamferings.
7. the closing method of a kind of flow regulator bridge pipe according to claim 4, it is characterised in that：It is described raised outer
Circle C (50) two ends are 45 ° of chamferings.
8. the closing method of a kind of flow regulator bridge pipe according to claim 4, it is characterised in that：It is described raised outer
The left end of circle D (51) is right-angle surface, and right-hand member is 45 ° of fillet surface.
9. the closing method of a kind of flow regulator bridge pipe according to claim 4, it is characterised in that：It is described raised outer
The right-angle surface of circle D (51) is provided with that left end is cylindrical (45), cylindrical (11) phase in left side on left end cylindrical (45) and housing (2)
Match somebody with somebody.
10. the closing method of a kind of flow regulator bridge pipe according to claim 1, it is characterised in that：The roller
(4) concentricity tolerance of profile surface of revolution pair roller endoporus (46) is 0.03mm, and end face is to the surface of revolution and pair roller endoporus
(46) run-out tolerance is 0.05mm.
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|---|---|---|---|
| CN201611118685.5A CN106734651B (en) | 2016-12-07 | 2016-12-07 | A kind of closing method of flow regulator bridge pipe |
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|---|---|---|---|
| CN201611118685.5A CN106734651B (en) | 2016-12-07 | 2016-12-07 | A kind of closing method of flow regulator bridge pipe |
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| CN106734651B CN106734651B (en) | 2019-05-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672571A (en) * | 2018-05-21 | 2018-10-19 | 晋西工业集团有限责任公司 | A kind of rolling forming process |
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| CN101625054A (en) * | 2009-08-20 | 2010-01-13 | 中舟海洋科技(上海)有限公司 | Radial extrusion type joint |
| CN102764764A (en) * | 2011-05-06 | 2012-11-07 | 豫北转向系统股份有限公司 | Rolling wheel of spline with heterodont tooth and method for processing spline |
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| CN105980078A (en) * | 2014-03-14 | 2016-09-28 | 欧姆龙株式会社 | Crimped structure, crimping method, and electronic device |
| CN105478639A (en) * | 2014-09-16 | 2016-04-13 | 青岛德盛机械制造有限公司 | Thread roller and feeding control system thereof |
| JP2016165736A (en) * | 2015-03-09 | 2016-09-15 | 日新製鋼株式会社 | Joint pipe body and manufacturing method for the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108672571A (en) * | 2018-05-21 | 2018-10-19 | 晋西工业集团有限责任公司 | A kind of rolling forming process |
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