CN102009109A - Manufacturing method of large torsion spring - Google Patents
Manufacturing method of large torsion spring Download PDFInfo
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- CN102009109A CN102009109A CN2009101952966A CN200910195296A CN102009109A CN 102009109 A CN102009109 A CN 102009109A CN 2009101952966 A CN2009101952966 A CN 2009101952966A CN 200910195296 A CN200910195296 A CN 200910195296A CN 102009109 A CN102009109 A CN 102009109A
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Abstract
The invention discloses a manufacturing method of a large torsion spring, comprising the following steps of: bending a torsion beam of one end, selecting a proper shaft core, adjusting the screw pitch of an equipment screw, pressing the torsion beam of one end by using a pressing plate, rolling on a common lathe, carrying out low-temperature tempering and forcibly twisting for 3-5 times, testing and the like. The invention solves the problems of torsion beam bending, torsion spring rolling, stability and the like in the manufacturing process of the large torsion spring and achieves the advantages of reducing the manufacturing cost and period, reducing the labor strength, improving the manufacturing precision of the included angle of two torsion beams.
Description
Technical field
The present invention relates to a kind of manufacture method of large-scale torsion spring.
Background technology
In the spring product, usually comprise various multi-form torsion springs, be used for the mechanism of each specific (special) requirements.At present, the torsion spring great majority are processed on the omnipotent spring coiling machine of numerical control, satisfy the physical dimension and the torque demand of torsion spring by Digit Control Machine Tool.This is a known prior art, and China and foreign countries extensively are applied so far.But the omnipotent spring coiling machine of numerical control is applicable to the production of torsion spring in enormous quantities, and for the less large-scale torsion spring of quantity demand, adopts the omnipotent spring coiling machine manufacturing of numerical control, and debug time is longer, and cost is too high, therefore often adopts the hand-built method.
To so far, the manufacturing process flow of torsion spring is: car is around---tempering---bends---tempering---test of turning round arm (" in the design manual such as spring handbook introduction is arranged).
But in actual production, owing to turn round the particularity of arm, if manufacturing process is routinely turned round bending of arm and can't be carried out.Therefore be badly in need of seeking a kind of method of making large-scale torsion spring.
Do not find at present the explanation or the report of technology similar to the present invention, do not collect both at home and abroad similarly data as yet yet.
Summary of the invention
Turn round bending of arm in order to solve in the large-scale torsion spring manufacture process, and the rolling and problem such as stable of torsion spring, the object of the present invention is to provide a kind of manufacture method of large-scale torsion spring.Utilize the present invention, can utilize engine lathe, finish the manufacturing of large-scale torsion spring part.
In order to reach the foregoing invention purpose, the technical scheme that the present invention is adopted for its technical problem of solution provides a kind of manufacture method of large-scale torsion spring, comprises the steps:
(1) bends an end and turn round arm; The torsion spring end is turned round arm and is answered the first order buckling moulding during fabrication, and arm one end of turning round that bends is positioned in the groove, and fixes with pressing plate;
(2) select suitable device, C620 lathe;
(3) pitch of adjustment equipment leading screw;
(4) select or make suitable mandrel, an end that torsion spring is bent moulding rolls after fixing with pressing plate;
(5) the torsion spring lonneal after will rolling, temperature is 260 ℃ ± 20 ℃; Do test piece satisfies in the pattern after the tempering pitch and external diameter require? as do not meet then repeating step (3)～(5);
(6), cut off the unnecessary circle in two ends as the coincidence pattern requirement; Adopt frock to bend the arm of turning round of the other end; Deburring;
(7) lonneal, stable dimensions;
(8) turn round 3～5 times by force after, adopt test fixture to survey moment of torsion; Is and the every index in the detail of design satisfied in test? as not satisfying, then repeat above-mentioned steps (3)～(8);
(9) as satisfying every index in the pattern, then carry out surface treatment nickel plating, prevent the spring oxidation of getting rusty;
(10) final test torsion spring moment of torsion is finished the torsion spring manufacturing.
The manufacture method of a kind of large-scale torsion spring of the present invention, owing to take above-mentioned technical scheme, to bend and turn round the arm operation break-down and carry out, promptly a first end with steel wire bends moulding before rolling, adopt special-purpose mandrel to roll, after tempering, design the frock that bends that the other end is turned round arm according to actual inner diameter that rolls torsion spring and drift, thereby need not Digit Control Machine Tool, only need to make nonstandard large-scale torsion spring with engine lathe, therefore, the present invention has obtained and has reduced manufacturing cost and cycle, minimizing labour intensity, improves two beneficial effects such as the accuracy of manufacture of turning round the arm angle.
Description of drawings
Fig. 1 is the structural representation of a certain nonstandard large-scale torsion spring, and wherein: Figure 1A is that side direction view, Figure 1B are axial view;
Fig. 2 is the process chart of the large-scale torsion spring manufacture method of the present invention.
The specific embodiment
Below in conjunction with description of drawings the preferred embodiments of the present invention.
Fig. 1 is the structural representation of a certain nonstandard large-scale torsion spring, as one embodiment of the present of invention.Wherein: Figure 1A is that side direction view, Figure 1B are axial view; As shown in Figure 1, the steel wire diameter of this torsion spring is φ 5.5mm, pitch only has 6.6mm, belong to nonstandard pitch, therefore there is error in calculated value with the actual mandrel that adopts, need roll the pitch and the mandrel of adjustment equipment repeatedly, after tempering, reach the production that the spring physical dimension requires to continue subsequent handling.Through rolling repeatedly, adjust the pitch and the axle diameter of equipment leading screw, the axle diameter when finally drawing spring and rolling is φ 37.5mm.
Fig. 2 is the process chart of the large-scale torsion spring manufacture method of the present invention; This method comprises the steps:
(1) bends an end and turn round arm;
The torsion spring end is turned round arm and is answered the first order buckling moulding during fabrication, and arm one end of turning round that bends is positioned in the groove, and fixes with pressing plate.Should make torsion spring indeformable in clamping process, can take out smoothly after making the crook of the arm system of turning round of torsion spring again, and the angle of frock wants appropriate, the arm of turning round after bending is rebounded under nature, reach the angle requirement of drawing regulation.
(2) select suitable device C620 lathe;
(3) pitch of adjustment equipment leading screw;
(4) select or make suitable mandrel, an end that torsion spring is bent moulding rolls after fixing with pressing plate;
(5) the torsion spring lonneal after will rolling, temperature is 260 ℃ ± 20 ℃; Do test piece satisfies in the pattern after the tempering pitch and external diameter require? as do not meet then repeating step (3)～(5);
(6), cut off the unnecessary circle in two ends as the coincidence pattern requirement; Adopt suitable frock to bend the arm of turning round of the other end; Deburring;
(7) lonneal, stable dimensions;
(8) turn round 3～5 times by force after, adopt suitable test fixture to survey moment of torsion; Is and the every index in the detail of design satisfied in test? as not satisfying, then repeat above-mentioned steps (3)～(8);
(9) as satisfying every index in the pattern, then carry out surface treatment nickel plating, prevent the spring oxidation of getting rusty;
(10) final test torsion spring moment of torsion is finished the torsion spring manufacturing.
In the above-mentioned steps (4), it is appropriate that the diameter of mandrel is wanted, and can use according to the different corrects of turning round arm form and angle.Be that torsion spring is not bitten the mandrel phenomenon when turning round to predetermined angular (123 °); It is fixing respectively to turn round the arm two ends, makes measuring accuracy comparatively accurate.
Bend the general requirement of turning round arm frock design and be that the location is correct, reliable clamping, use and easy to adjust.Springback capacity was uncertain when spring rolled shaping, cause the interior external diameter of torsion spring to have tolerance, therefore when the design frock, to be of a size of benchmark with actual inner diameter, and the clamping mode of selecting will be accomplished easy to be reliable, clamping force will be perpendicular to main location datum level, guards against to make torsion spring produce distortion because of clamping force is excessive or destroy original positioning states.
The concrete trace routine of above-mentioned steps (8) torsion spring moment of torsion is as follows: the spring string is in the test mandrel, and axle diameter requires less than the torsion spring internal diameter, does not bite the mandrel phenomenon when torsion spring is turned round to predetermined angular (123 °); Fix an end and turn round arm, rotate torsion spring machine for testing torsion handwheel, make motion bar and another turn round arm and contact, be rotated further handwheel after the zeroing, make torsional angle change the numerical value that reaches regulation, the printing test data are preserved.
Adopt conventionally test mandrel (only being simple and easy multidiameter) test moment of torsion, in test process, often produce deflection, influence the repeatability error of torque precision and test, therefore on the basis that does not influence test philosophy, it is fixing separately to utilize pressing plate that arm is turned round at two ends, overcome the deadweight of torsion spring, the repeatability precision of torsion spring test is improved greatly, and the computing formula of pressing axle diameter when testing: axle diameter=0.9 * (torsion spring internal diameter-torsion spring torsional deflection amount * torsion spring internal diameter/360 * number of active coils), drawing axle diameter is Φ 38.5mm, but when measuring, will produce some frictions between torsion spring and mandrel and the spring coil unavoidably, therefore the axle diameter that adopts needs than the little 0.3～0.5mm of theoretical value.
Claims (3)
1. the manufacture method of a large-scale torsion spring is characterized in that, this method comprises the steps:
(1) bends an end and turn round arm; The torsion spring end is turned round arm and is answered the first order buckling moulding during fabrication, and arm one end of turning round that bends is positioned in the groove, and fixes with pressing plate;
(2) select suitable device, C620 lathe;
(3) pitch of adjustment equipment leading screw;
(4) select or make suitable mandrel, an end that torsion spring is bent moulding rolls after fixing with pressing plate;
(5) the torsion spring lonneal after will rolling, temperature is 260 ℃ ± 20 ℃; Do test piece satisfies in the pattern after the tempering pitch and external diameter require? as do not meet then repeating step (3)～(5);
(6), cut off the unnecessary circle in two ends as the coincidence pattern requirement; Adopt frock to bend the arm of turning round of the other end; Deburring;
(7) lonneal, stable dimensions;
(8) turn round 3～5 times by force after, adopt test fixture to survey moment of torsion; Is and the every index in the detail of design satisfied in test? as not satisfying, then repeat above-mentioned steps (3)～(8);
(9) as satisfying every index in the pattern, then carry out surface treatment nickel plating, prevent the spring oxidation of getting rusty;
(10) final test torsion spring moment of torsion is finished the torsion spring manufacturing.
2. the manufacture method of large-scale torsion spring as claimed in claim 1, it is characterized in that: suitable mandrel is selected or made to described step (4), and the diameter of mandrel can use according to the different corrects of turning round arm form and angle; Be that torsion spring is not bitten the mandrel phenomenon when turning round to predetermined angular; It is fixing respectively to turn round the arm two ends, makes measuring accuracy comparatively accurate.
3. the manufacture method of large-scale torsion spring as claimed in claim 1, it is characterized in that: the concrete trace routine of described step (8) torsion spring moment of torsion is as follows: the spring string is in the test mandrel, axle diameter requires not bite the mandrel phenomenon less than the torsion spring internal diameter when torsion spring is turned round to predetermined angular; Fix an end and turn round arm, rotate torsion spring machine for testing torsion handwheel, make motion bar and another turn round arm and contact, be rotated further handwheel after the zeroing, make torsional angle change the numerical value that reaches regulation, the printing test data are preserved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101952966A CN102009109A (en) | 2009-09-08 | 2009-09-08 | Manufacturing method of large torsion spring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101952966A CN102009109A (en) | 2009-09-08 | 2009-09-08 | Manufacturing method of large torsion spring |
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| CN102009109A true CN102009109A (en) | 2011-04-13 |
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| CN2009101952966A Pending CN102009109A (en) | 2009-09-08 | 2009-09-08 | Manufacturing method of large torsion spring |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009017A (en) * | 2013-01-21 | 2013-04-03 | 江苏省宿迁市方圆机械有限公司 | Automotive torsion rod spring pre-torsion process |
| CN106077364A (en) * | 2016-06-20 | 2016-11-09 | 贵州航天天马机电科技有限公司 | A kind of extraordinary duplex torsion spring manufacture method and mould |
| CN107486514A (en) * | 2017-08-24 | 2017-12-19 | 重庆望江工业有限公司 | A kind of binary torsion spring shaped device |
| CN112555312A (en) * | 2020-11-17 | 2021-03-26 | 北京星航机电装备有限公司 | Torsional spring strong-twisting device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424264A (en) * | 1977-07-27 | 1979-02-23 | Mikuro Hatsujiyou Kk | Method of making torsionncoillspring |
| SU745579A1 (en) * | 1977-08-01 | 1980-07-07 | Предприятие П/Я Г-4311 | Apparatus for winding torsion springs having oppositely directed turns |
| US4821390A (en) * | 1988-03-15 | 1989-04-18 | Perfection Spring & Stamping Corp. | Multiple-strand torsion spring and method of forming the same |
| CN2723074Y (en) * | 2004-08-31 | 2005-09-07 | 江南机器（集团）有限公司 | Parallel double torsional spring winder |
-
2009
- 2009-09-08 CN CN2009101952966A patent/CN102009109A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424264A (en) * | 1977-07-27 | 1979-02-23 | Mikuro Hatsujiyou Kk | Method of making torsionncoillspring |
| SU745579A1 (en) * | 1977-08-01 | 1980-07-07 | Предприятие П/Я Г-4311 | Apparatus for winding torsion springs having oppositely directed turns |
| US4821390A (en) * | 1988-03-15 | 1989-04-18 | Perfection Spring & Stamping Corp. | Multiple-strand torsion spring and method of forming the same |
| CN2723074Y (en) * | 2004-08-31 | 2005-09-07 | 江南机器（集团）有限公司 | Parallel double torsional spring winder |
Non-Patent Citations (1)
| Title |
|---|
| 罗辉: "《机械弹簧制造技术》", 30 September 1987, 机械工业出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009017A (en) * | 2013-01-21 | 2013-04-03 | 江苏省宿迁市方圆机械有限公司 | Automotive torsion rod spring pre-torsion process |
| CN106077364A (en) * | 2016-06-20 | 2016-11-09 | 贵州航天天马机电科技有限公司 | A kind of extraordinary duplex torsion spring manufacture method and mould |
| CN106077364B (en) * | 2016-06-20 | 2017-10-24 | 贵州航天天马机电科技有限公司 | A kind of extraordinary duplex torsion spring manufacture method and mould |
| CN107486514A (en) * | 2017-08-24 | 2017-12-19 | 重庆望江工业有限公司 | A kind of binary torsion spring shaped device |
| CN107486514B (en) * | 2017-08-24 | 2023-07-14 | 重庆望江工业有限公司 | Double-body torsion spring forming device |
| CN112555312A (en) * | 2020-11-17 | 2021-03-26 | 北京星航机电装备有限公司 | Torsional spring strong-twisting device and method |
| CN112555312B (en) * | 2020-11-17 | 2022-09-16 | 北京星航机电装备有限公司 | Torsional spring strong-twisting device and method |
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Application publication date: 20110413 |