CN105880437B - Suitable for the manufacture method of each model abnormity torsionspring - Google Patents
Suitable for the manufacture method of each model abnormity torsionspring Download PDFInfo
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- CN105880437B CN105880437B CN201610212042.0A CN201610212042A CN105880437B CN 105880437 B CN105880437 B CN 105880437B CN 201610212042 A CN201610212042 A CN 201610212042A CN 105880437 B CN105880437 B CN 105880437B
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- spring
- torsionspring
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- special
- mandrel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F35/00—Making springs from wire
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- Mechanical Engineering (AREA)
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Abstract
The manufacture method suitable for each model abnormity torsionspring of the present invention, for carbon spring steel wire, in step is rolled, diameter of mandrel byDetermine；When making camber beam/arm, the angle of special-shaped torsionspring adds deflection in design drawing requirement,；For 50CrVA spring steel wires, in step is rolled, diameter of mandrel byDetermine.The manufacture method suitable for each model abnormity torsionspring of the present invention, manufacture cost are low.
Description
Technical field
The present invention relates to spring manufacturing field, and in particular to a kind of manufacturer suitable for each model abnormity torsionspring
Method.
Background technology
Special-shaped torsionspring is aircraft important part, and the work(such as buffering, vibration damping, mechanical energy storage, control are provided for department enclosure
Energy., it is necessary to replace the special-shaped torsionspring of various models during aircraft overhaul, and special-shaped torsionspring is manufactured,
A problem always in the production of zero spare part of aircraft repair factory.Aircraft repair factory manufactures the spy of special-shaped torsionspring
Point is small lot, polytypic, is from the special-shaped torsionspring for making various models, and aircraft repair factory, which needs to find out, to be met certainly
The special-shaped torsionspring manufacture method of body feature demand.
The content of the invention
It is an object of the invention to provide a kind of manufacture method suitable for each model abnormity torsionspring, production cost
It is low, suitable for the special-shaped torsionspring of various models.
To achieve the above object, the present invention provides a kind of manufacture method suitable for each model abnormity torsionspring,
For carbon spring steel wire, in step is rolled, diameter of mandrel byDetermine；Make camber beam/arm
When be considered as deformation of the angle of special-shaped torsionspring in heat treatment process, design drawing requirement angle on plus deformation
Amount,；For 50CrVA spring steel wires, in step is rolled, diameter of mandrel byDetermine；Wherein,k 1 =0.0000735,dFor wire diameter,It is strong for spring wire material
Degree, D are spring outer diameter, D0For spring inside diameter, D0=D–2d,k 2 =0.0000067,For spring average diameter,=D–d, T0To return
Fiery temperature,k 3 =0.00089, nFor active spring coils, during calculating, D uses the spring outer diameter value of design drawing requirement.
The abnormity that the manufacture method suitable for each model abnormity torsionspring of the present invention is suitable for various models reverses bullet
The manufacture of spring, without special spring manufacturing equipment, just can accurately be produced using center lathe or manual coiling machine and meet ruler
The special-shaped torsionspring of very little requirement, production cost is low, is suitable for small lot, the aircraft repair factory of polytypic.
Brief description of the drawings
The manufacture method suitable for each model abnormity torsionspring of the present invention is provided by following embodiment and attached drawing.
Fig. 1 is the front view of certain model abnormity torsionspring.
Fig. 2 is the left view of the special-shaped torsionspring in Fig. 1.
Embodiment
The manufacture method suitable for each model abnormity torsionspring of the present invention is made into one below with reference to Fig. 1~Fig. 2
The detailed description of step.
The manufacturing process of special-shaped torsionspring generally includes following steps：1）Roll；2）Camber beam/arm makes；3）Heat treatment；
4）Engineer testing and swirling flows.Wherein, roll be in accordance with spring wire as defined in technical conditions on plug.Single-piece and
When small lot produces, it can be rolled on center lathe or manual coiling machine.Roll and be divided to two kinds of cold coiling and hot rolling, make in aircraft repair
Special-shaped torsionspring uses cold coiling more.Heat treatment rolls caused internal stress for elimination.
Fig. 1 show the front view of certain model abnormity torsionspring, and Fig. 2 show the left view of the model abnormity torsionspring
Figure.As depicted in figs. 1 and 2, which includes two groups of spring coils connected by camber beam 2, every group of spring coil it is another
One end is equipped with the curved boom 1 with hook.In Fig. 1 and Fig. 2, H0Represent the spring body size of the model abnormity torsionspring,l1Represent
The length of camber beam 2,lRepresent the length of the curved boom 1 with hook, r2 represents the upper bending radius of the hook of curved boom 1 with hook, and r1 is represented
The upper bending radius of camber beam 2, DnRepresent spring inside diameter,Represent the angle of the model abnormity torsionspring,It is that the model is different
The angle that camber beam 2 turns under shape torsionspring use state,It is that camber beam 2 turns under the model abnormity torsionspring test mode
Angle.
In the manufacture of special-shaped torsionspring, although the used spring wire material trade mark and supply status are different,
They all have certain elasticity, and after spring wire is subject to external force effect to be coiled into spring, spring diameter will produce opposite with stress
The rebound in direction, this phenomenon are known as spring diameter and expand.Therefore, to master mandrel size, first should expand spring diameter
Numerical computations come out.By long-felt research find, spring diameter expand with the spring wire strength of materials, spring curl up ratio,
The anglec of rotation etc. is related, and specific formula for calculation is as follows：
Spring diameter expands numerical value：（1）
Therefore draw, mandrel size：（2）
In formula,k 1 =0.0000735,dFor wire diameter,For the spring wire strength of materials, D is spring outer diameter, D0For bullet
Spring internal diameter, D0=Dn=D–2d,For spring average diameter,=D–d。
The spring wire material of the special-shaped torsionspring of manufacture is different, and heat treatment can have any different, for carbon spring steel wire, heat treatment
For temper, for 50CrVA spring steel wires, it is heat-treated as temper after quenching treatment.It was verified that heat treated
Cheng Zhong, the spring inside diameter of special-shaped torsionspring has different degrees of deformation, and the direction deformed is the side with helix
To consistent.The deformation of spring inside diameter causes the change of the number of coils, and then causes the angle of special-shaped torsionspringChange
Shape.
Found by long-felt research, the spring inside diameter deflection of special-shaped torsionspring is with manufacturing the abnormity torsionspring
Spring wire material it is related, the deflection of the special-shaped torsionspring of carbon spring steel wire manufacture is manufactured than 50CrVA spring steel wire
The deflection of special-shaped torsionspring is big；Even if manufacturing special-shaped torsionspring using identical springs wire material, its deflection is also by bullet
Spring curls up the influence such as ratio, heat treatment temperature.
For the special-shaped torsionspring of carbon spring steel wire manufacture, the calculation formula of spring average diameter amount of contraction is such as after tempering
Under：
（3）
In formula,k 2 =0.0000067,For spring average diameter, i.e.,=D–d, T0Represent temperature.
By formula（3）Derive the deformation calculation formula of the number of coils and the angle of special-shaped torsionspring：
Number of coils incrementss：（4）
The angle amount of contraction of special-shaped torsionspring：（5）
In formula, nFor active spring coils.
For the special-shaped torsionspring of 50CrVA spring steel wires manufacture, the calculation formula of spring inside diameter amount of contraction is such as after quenching
Under：
（6）
In formula,k 3 =0.00089。
50CrVA spring steel wires manufacture special-shaped torsionspring deformed in heat treatment process it is smaller, therefore,Deflection
It is negligible.
Embodiment one：
Prepare material, 300mm long steel wires by design drawing requirement（Carbon spring steel wire）6, visually（Including 5 times of magnifying glasses）
Check steel wire answer flawless, weigh wounded, folding line, pockmark, corrosion the defects of.Check material trademark, specification, batch number and qualification
Card.
Determine diameter of mandrel：Diameter of mandrel is by formula（2）And formula（3）Determine, i.e., in formula（2）On the basis of increase become
Shape amount, diameter of mandrel=, during calculating, D uses the spring outer diameter value of design drawing requirement, D0=
D–2d,=D–d。
On plug according to design drawing requirement the number of effective coils lay out spring coil, according to design drawing require make camber beam/
The deflection of the angle of special-shaped torsionspring is considered as during arm, i.e., increases deflection in the angle of design drawing requirement,+=。
Temper：280 °C ± 10 °C of temperature, keeps the temperature 30 minutes.
Surface treatment：The cadmium plating of special-shaped torsionspring surface or oxidation, the spring after plating should be immediately at 180 °C~200 °C
When lower dehydrogenation, time are small no less than 24.
Processing of halting, heating bearing test, the strong torsion for carrying out special-shaped torsionspring after surface treatment by relevant regulations are handled,
Accessory size should comply fully with design drawing requirement and Specifications requirement.Processing of halting is to reverse special-shaped torsionspring
To 1.2 times of maximum functional torsion angle, 10 continuous torsions are done.Working torsional angle is not specified in design drawing then without halting
Processing.When the operating temperature of spring exceedes+60 °, should carry out " processing of heating load up ageing "：Spring is reversed to maximum work
Make moment of torsion, higher than being kept for certain time under 20 °C of operating temperature, when small no less than 2 every time（After heat treatment once, it is surface-treated
Afterwards once）, thus caused color and luster change allows to exist.Regulation has the strong progress for turning round processing requirement by force at torsion in design drawing
Reason, spring is specially reversed to 1.2 times of maximum twist angle, keep（6~48）Hour（Time is determined by designer）.
Embodiment two：
Prepare material by design drawing requirement, 50CrVA spring steel wires are stocked up, visually（Including 5 times of magnifying glasses）Check steel wire
Answer flawless, weigh wounded, folding line, pockmark, corrosion the defects of.Check material trademark, specification, batch number and the quality certification.
Determine diameter of mandrel：Diameter of mandrel is by formula（2）And formula（6）Determine, diameter of mandrel=
, during calculating, D uses the spring outer diameter value of design drawing requirement, D0=D–2d,=D–d。
On plug according to design drawing requirement the number of effective coils lay out spring coil, according to design drawing require make camber beam/
Arm.
Heat treatment：840 °C~860 °C of hardening heat；370 °C~420 °C of temper temperature, time are no less than 30 points
Clock, hardness HRC45~50.
Surface treatment：The cadmium plating of special-shaped torsionspring surface or oxidation, the spring after plating should be immediately at 180 °C~200 °C
When lower dehydrogenation, time are small no less than 24.
Processing of halting, heating bearing test, the strong torsion for carrying out special-shaped torsionspring after surface treatment by relevant regulations are handled,
Accessory size should comply fully with design drawing requirement and Specifications requirement.Processing of halting is to reverse special-shaped torsionspring
To 1.2 times of maximum functional torsion angle, 10 continuous torsions are done.Working torsional angle is not specified in design drawing then without halting
Processing.When the operating temperature of spring exceedes+60 °, should carry out " processing of heating load up ageing "：Spring is reversed to maximum work
Make moment of torsion, higher than being kept for certain time under 20 °C of operating temperature, when small no less than 2 every time（After heat treatment once, it is surface-treated
Afterwards once）, thus caused color and luster change allows to exist.Regulation has the strong progress for turning round processing requirement by force at torsion in design drawing
Reason, spring is specially reversed to 1.2 times of maximum twist angle, keep（6~48）Hour（Time is determined by designer）.
Claims (1)
1. suitable for the manufacture method of each model abnormity torsionspring, it is characterised in that
For carbon spring steel wire, in step is rolled, diameter of mandrel byDetermine；Make curved
Deformation of the angle of special-shaped torsionspring in heat treatment process is considered as during beam/arm, is added in the angle of design drawing requirement
Upper deflection,；
For 50CrVA spring steel wires, in step is rolled, diameter of mandrel byDetermine；
Wherein,k 1 =0.0000735,dFor wire diameter,For the spring wire strength of materials, D is spring outer diameter, D0For in spring
Footpath, D0=D–2d,k 2 =0.0000067,For spring average diameter,=D–d, T0For temperature,k 3 =0.00089, nFor bullet
The spring number of effective coils, during calculating, D uses the spring outer diameter value of design drawing requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610212042.0A CN105880437B (en) | 2016-04-07 | 2016-04-07 | Suitable for the manufacture method of each model abnormity torsionspring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610212042.0A CN105880437B (en) | 2016-04-07 | 2016-04-07 | Suitable for the manufacture method of each model abnormity torsionspring |
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| CN105880437A CN105880437A (en) | 2016-08-24 |
| CN105880437B true CN105880437B (en) | 2018-05-01 |
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| CN201610212042.0A Active CN105880437B (en) | 2016-04-07 | 2016-04-07 | Suitable for the manufacture method of each model abnormity torsionspring |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1121847A (en) * | 1994-05-15 | 1996-05-08 | 阜新蒙古族自治县弹簧厂 | Method for mfg. high-prestressed tension spring |
| JP2000202559A (en) * | 1999-01-14 | 2000-07-25 | Canon Inc | Coil spring, coil spring unit, coil spring cutting method, coil spring manufacturing device, and equipment with coil spring unit built therein |
| JP2001300673A (en) * | 2000-04-25 | 2001-10-30 | Toshikazu Okuno | Automatic adjustment system of coil spring forming machine |
| CN204934436U (en) * | 2015-02-15 | 2016-01-06 | 长安大学 | A kind of square spring automatic forming mechanism |
-
2016
- 2016-04-07 CN CN201610212042.0A patent/CN105880437B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1121847A (en) * | 1994-05-15 | 1996-05-08 | 阜新蒙古族自治县弹簧厂 | Method for mfg. high-prestressed tension spring |
| JP2000202559A (en) * | 1999-01-14 | 2000-07-25 | Canon Inc | Coil spring, coil spring unit, coil spring cutting method, coil spring manufacturing device, and equipment with coil spring unit built therein |
| JP2001300673A (en) * | 2000-04-25 | 2001-10-30 | Toshikazu Okuno | Automatic adjustment system of coil spring forming machine |
| CN204934436U (en) * | 2015-02-15 | 2016-01-06 | 长安大学 | A kind of square spring automatic forming mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 用优选法选择冷卷弹簧芯棒;第一重型机器厂十二车间;《机械工程师》;19730110;第61-62页 * |
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| Publication number | Publication date |
|---|---|
| CN105880437A (en) | 2016-08-24 |
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