CN105420478A - Device for thermal treatment of springs - Google Patents

Device for thermal treatment of springs Download PDF

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Publication number
CN105420478A
CN105420478A CN201510918077.1A CN201510918077A CN105420478A CN 105420478 A CN105420478 A CN 105420478A CN 201510918077 A CN201510918077 A CN 201510918077A CN 105420478 A CN105420478 A CN 105420478A
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China
Prior art keywords
spring
thermal treatment
springs
nut
packing ring
Prior art date
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Granted
Application number
CN201510918077.1A
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Chinese (zh)
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CN105420478B (en
Inventor
沈国喜
林君
巢昺轩
熊曦耀
李智勇
王宝龙
周晶晶
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Jiangxi Changhe Aviation Industries Co Ltd
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Jiangxi Changhe Aviation Industries Co Ltd
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Priority to CN201510918077.1A priority Critical patent/CN105420478B/en
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Abstract

The invention belongs to a tool design technology, is used for thermal treatment of springs and particularly relates to a device for thermal treatment of cylindrical helical compression springs. The main purpose of thermal treatment of the springs is to obtain favorable elastic properties and high fatigue properties to meet the favorable comprehensive properties of the springs under the action of impact, vibration or alternating stress. At present, a single spring is directly placed in a thermal treatment furnace to be thermally treated, the thermally treated spring deforms seriously, and follow-up auxiliary correction takes a long time and is difficult, so that the processing efficiency and the product quality are affected seriously. The invention provides the device which is quick in clamping and positioning, can perform thermal treatment for a plurality of cylindrical helical compression springs at the same time, controls spring deformation, increases the processing efficiency, reduces the processing cost and improves the product quality.

Description

A kind of device for heattreatment of spring
Technical field
The invention belongs to Fixture Design technology, for heat-treating spring, being specifically related to a kind of device that cylindroid helical-coil compression spring is heat-treated.
Background technology
The thermal treatment of spring, mainly in order to obtain good elasticity performance and high fatigue property, meets the over-all properties that spring is good under shock and vibration or repeated stress effect.The heating refrigeration cycle of part in heat treatment process and the thermal stresses produced and structural stress will inevitably cause size and volume change, causes part deformation.Heat treatment deformation is divided into dimensional change (volume change) and shape deformity two kinds.The consistence requiring to include internal diameter, free height, pitch, linearity, verticality and often enclose of the essential shape structure of cylindroid helical-coil compression spring (as Fig. 1), surface requirements is without scuffing, without impression.
Single-piece spring is directly placed in heat treatment furnace and heat-treats by current employing, and the distortion of thermal treatment rear spring is serious, and the follow-up auxiliary school shape time is long, difficulty is large, has had a strong impact on working (machining) efficiency and quality product.
Summary of the invention
The object of the invention is: propose a kind of can quick-clamping location and can simultaneously to the heat-treating apparatus of more than one piece cylindroid helical-coil compression spring, control spring is out of shape, and improves working (machining) efficiency, cuts down finished cost, improve the quality of products.
Technical scheme of the present invention is: a kind of device for heattreatment of spring, for carrying out the thermal treatment after clamping to cylindroid helical-coil compression spring, this device comprises screw rod, nut and curved circular packing ring, described screw rod has hexagonal block in the middle, in hexagonal block both sides, spring, curved circular packing ring and nut is housed successively; Described curved circular packing ring positions spring end face in inner side, has the arc mated with nut thus realize the vertically orient to spring end face in outside.
Described nut also has through hole, when putting into heat treatment furnace, utilizes thin wire to penetrate the realization of this through hole to the colligation of this device and hanging.
Described screw rod is with spiral grooves, and spiral grooves internal diameter equals spring inside diameter, and pitch equals the pitch of spring, and rotation direction is consistent with spring rotation direction.
Advantage of the present invention is: can locate by quick-clamping, can two pieces process after clamped one time, achieve the location of each dimension of the whole space multistory of spring, effectively control the distortion of heat treatment process, eliminate the operation that heat treatment deformation is corrected, improve working (machining) efficiency, reduce tooling cost.Test proves, working (machining) efficiency improves more than 2 times, and conforming product rate improves 30%.
Accompanying drawing explanation
Fig. 1 is cylindroid helical-coil compression spring schematic diagram of the present invention;
Fig. 2 is cylindroid helical-coil compression spring clamping view of the present invention;
Fig. 3 is screw rod schematic diagram of the present invention;
Fig. 4 is nut schematic diagram of the present invention;
Fig. 5 is the C-C sectional view of Fig. 4;
Fig. 6 is curved circular packing ring schematic diagram of the present invention;
Fig. 7 is the sectional view of curved circular packing ring.
1-screw rod; 2-nut; 3-curved circular packing ring; 4-spring
Embodiment
Below the present invention is described in further details.
Consult Fig. 2, the present invention is used for the structural representation of cylindroid helical-coil compression spring heat-treating apparatus under clamping state, this device comprises screw rod 1, nut 2 and curved circular packing ring 3, described screw rod 1 has hexagonal block in the middle, screw in needing the spring 4 of heat-treating respectively along groove from the two ends of screw rod 1, to screw on respectively from outside again curved circular packing ring 3 and nut 2, curved circular packing ring 3 adjustment is guaranteed that the end of spring is accurately located, is fixed finally by nut 2.
When putting into heat treatment furnace, two non-threaded holes utilizing thin wire to penetrate nut 2 realize the colligation to this device, and then heat treatment furnace is put in hanging, can heat-treat production.

Claims (3)

1. the device for heattreatment of spring, for carrying out the thermal treatment after clamping to cylindroid helical-coil compression spring, it is characterized in that: this device comprises screw rod (1), nut (2) and curved circular packing ring (3), described screw rod (1) has hexagonal block in the middle, and spring (4), curved circular packing ring (3) and nut (2) are housed successively in hexagonal block both sides; Described curved circular packing ring (3) positions spring end face in inner side, has the arc mated with nut (2) thus the vertically orient realized spring (4) end face in outside.
2. device according to claim 1, is characterized in that: described nut (2) also has through hole, when putting into heat treatment furnace, utilizes thin wire to penetrate the realization of this through hole to the colligation of this device and hanging.
3. device according to claim 1 and 2, is characterized in that: described screw rod (1) is with spiral grooves, and spiral grooves internal diameter equals spring inside diameter, and pitch equals the pitch of spring, and rotation direction is consistent with spring rotation direction.
CN201510918077.1A 2015-12-11 2015-12-11 A kind of device for heattreatment of spring Active CN105420478B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510918077.1A CN105420478B (en) 2015-12-11 2015-12-11 A kind of device for heattreatment of spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510918077.1A CN105420478B (en) 2015-12-11 2015-12-11 A kind of device for heattreatment of spring

Publications (2)

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CN105420478A true CN105420478A (en) 2016-03-23
CN105420478B CN105420478B (en) 2017-10-10

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CN (1) CN105420478B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105965935A (en) * 2016-07-20 2016-09-28 苏州切浦汽车零部件有限公司 Spring shaping machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1749265A1 (en) * 1990-10-01 1992-07-23 Московский институт теплотехники Apparatus for heat treatment of springs
CN203390130U (en) * 2013-08-23 2014-01-15 哈尔滨汽轮机厂有限责任公司 Coiling and quenching clamp of circular linear metal spring
KR20140104733A (en) * 2013-02-21 2014-08-29 김현태 Jig for treating with heat in shape memory alloy spring
CN104451098A (en) * 2014-12-11 2015-03-25 中国航空工业标准件制造有限责任公司 Spring compression aging cladding layer protection jig and using method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1749265A1 (en) * 1990-10-01 1992-07-23 Московский институт теплотехники Apparatus for heat treatment of springs
KR20140104733A (en) * 2013-02-21 2014-08-29 김현태 Jig for treating with heat in shape memory alloy spring
CN203390130U (en) * 2013-08-23 2014-01-15 哈尔滨汽轮机厂有限责任公司 Coiling and quenching clamp of circular linear metal spring
CN104451098A (en) * 2014-12-11 2015-03-25 中国航空工业标准件制造有限责任公司 Spring compression aging cladding layer protection jig and using method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105965935A (en) * 2016-07-20 2016-09-28 苏州切浦汽车零部件有限公司 Spring shaping machine
CN105965935B (en) * 2016-07-20 2017-12-29 苏州切浦汽车零部件有限公司 Spring forming machine

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