CN203076423U - Forming support spring structure for air-suspension U-shaped bolt - Google Patents

Forming support spring structure for air-suspension U-shaped bolt Download PDF

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Publication number
CN203076423U
CN203076423U CN2013201187533U CN201320118753U CN203076423U CN 203076423 U CN203076423 U CN 203076423U CN 2013201187533 U CN2013201187533 U CN 2013201187533U CN 201320118753 U CN201320118753 U CN 201320118753U CN 203076423 U CN203076423 U CN 203076423U
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China
Prior art keywords
die
spring
support spring
nitrogen
bending
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Active
Application number
CN2013201187533U
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Chinese (zh)
Inventor
吴志强
侯春生
李彪
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GUANGDONG FUHUA MACHINERY EQUIPMENT MANUFACTURING CO., LTD.
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Guangdong Fuwa Engineering Manufacturing Co Ltd
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Priority to CN2013201187533U priority Critical patent/CN203076423U/en
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Abstract

The utility model discloses a forming support spring structure for an air-suspension U-shaped bolt. The forming support spring structure comprises a bending die and a press machine, wherein the bending die comprises a convex die and a concave die; the concave die is fixed on a static die holder, and the convex die is fixed on a movable die holder; and the movable die holder is driven by the press machine. The forming support spring structure further comprises a support cavity, wherein the support cavity penetrates through the movable die holder and the concave die; an ejection rod is arranged in the support cavity; and the ejection rod is connected with a nitrogen spring device. The forming support spring structure disclosed by the utility model has the beneficial effects of being high in production efficiency and low in cost; with the adoption of the nitrogen spring, the process of bending forming continuously keeps a certain pressure; the U-shaped bolt moves upwards with a movable die during die release, thus ensuring the forming accuracy; and moreover, the bending process can tend to be stable, and the products are good in consistency.

Description

Air suspension U bolt shaping support spring structure
Technical field
The utility model relates to a kind of metal machining device, and more particularly, it relates to a kind of high-intensity special-shaped air suspension U bolt shaping support spring structure that is used to make.
Background technology
At present, auto industry has also driven the development of auto parts moulds/equipment industry in Chinese fast development.Automobile component factory also is furnished with the diemaking shop of specialty usually, constantly improving the quality requirement of auto parts, past, nowadays mould industry has also brought up to the preceding critical positions that does not reach with efficient and quality requirement, production capacity requires, high-quality be the present stage contradiction that manifested of auto parts manufacturing industry.At present, being used for automobile air, to hang the U-bolt be connected with the axletree central siphon be external import parts mostly, for U-bolt, domestic present employed metal forming technology mainly is to adopt the hot-pressing processing method, before the bar bending, be heated to uniform temperature earlier, with compression molding, this process need heat bar again, consumes a large amount of energy, the cost height, equipment is comparatively expensive, and operation is comparatively complicated, goes into the stokehold as bar and must coat anti-oxidation, masking paste, and the metal screen resilience after the processing is bigger, moulding is inaccurate, influences precision, the easy scaling of the outer surface of metal; And hot-forming operating temperature is higher, can not do molding effect complicated and that the degree of depth stretches.The applicant also attempts entrusting the exploitation of domestic metalworking enterprise to be suitable for the process equipment of N10054-003YM01 bolt, but adopt the mode of hot pressing, workpiece accuracy does not reach requirement, the back resilience of bending is not easy control, size guarantees, the depth of parallelism cannot say for sure the card, product quality product rate is all unsatisfactory always, for this series products, its frock, and supporting process route is very strict, controls badly, and appearance plays fur easily, open defect such as coarse, therefore, impel the applicant to be determined to develop voluntarily a kind of brand-new U-bolt former, make the N10054-003YM01 bolt can reach high strength, high-precision requirement satisfies its instructions for use.The processing technology of the U-bolt of N10054-003YM01 is that bar is partly flattened, bend then, but, because the required precision height of this product, particularly the form accuracy for arc section requires relatively stricter, therefore, common metal curving apparatus can not reach the utility model designing requirement.
The utility model content
In order to overcome the deficiencies in the prior art, the utility model provides the air suspension U bolt shaping support spring structure of a kind of machining accuracy height, production efficiency height, low cost of manufacture, to overcome the deficiencies in the prior art.
The technical scheme in the invention for solving the technical problem is: air suspension U bolt shaping support spring structure, comprise bending mould and forcing press, described bending mould comprises punch, die, described die is fixed on the quiet die holder, and punch is arranged on the dynamic model seat, and described dynamic model seat is driven by forcing press, also comprise support chamber, described support chamber runs through dynamic model seat and die, is provided with push rod in the described support chamber, and push rod connects the nitrogen spring device.
Described forcing press adopts 1000t or above hydraulic press.
Be provided with a plurality of alignment pins in the bottom of described die and the top of quiet die holder.
Described nitrogen spring device comprises nitrogen cylinder, nitrogen spring, and nitrogen cylinder top is provided with piston, and piston is connected with push rod.
The top of described nitrogen cylinder is provided with the nitrogen spring guider ring.
Stating the punch profile is pocket-shape, and top is wider than in the punch bottom.
In sum, the beneficial effects of the utility model are: the production efficiency height, and cost is low, the process that adopts nitrogen spring to make to bend moulding continues the pressure that keeps certain, and it is up to follow dynamic model during the U-bolt demoulding, guarantees formed precision, and bending technique is tended towards stability, good product consistency.
At present the bolt hardness of the same type made of common process is HB220---250, and the U-bolt of the 40Cr material made from the utility model, its hardness has reached HB310---and 330.The bolt grade is 4.9 grades.
U-bolt outward appearance of the present utility model is good, the coarse phenomenon of no peeling.The flatness of its partial circle segmental arc reaches designing requirement, can well contact with central siphon, and contact area reaches more than 95%.
U-bolt production of the present utility model production domesticization significantly reduces product cost, and single products 17 U.S. dollars that can descend are for enterprise brings very big economic benefit.
Description of drawings
Fig. 1 is a curving apparatus structural representation of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, the utility model air suspension U bolt shaping support spring structure, comprise bending mould and forcing press, described forcing press adopts the above hydraulic press of 1000t, wherein, bending mould comprises punch, die 2, and described die 2 is fixed on the quiet die holder 7, and punch is arranged on the dynamic model seat 1.Dynamic model seat 1 is driven by forcing press.Also comprise support chamber, described support chamber runs through whole dynamic model seat 7 and die 2 on it is set, and directes reach blank 3.Be provided with push rod 5 in the support chamber, push rod 5 connects the nitrogen spring device.
Be provided with a plurality of alignment pins 9 in the bottom of die 2 and the top of quiet die holder 7, make die 2 and quiet die holder locate and be fastenedly connected, the nitrogen spring device is installed in the tubular cavity volume, and inside is provided with nitrogen spring guider ring 8.The nitrogen cylinder top of nitrogen spring 4 is provided with piston 6, and piston 6 is connected with push rod 5.The nitrogen cylinder connects the nitrogen source of the gas, thereby guarantees enough nitrogen pressures.
The punch profile is a pocket-shape, and top is wider than in the bottom, highly locates to be the width maximum at 1/3 of mould.Therefore, can bend inflexed slightly U-bolt, so that operation is handled down, man-machine assurance finished product accuracy.
The technological process that bends moulding is as follows:
1) matched moulds.Forcing press drives the dynamic model seat and moves down, and punch, die 2 are closed up gradually, and the blank 3 above die 2 contact with punch and pressed down from the middle part by punch and progressively is out of shape, and the order of deformation develops to both sides from the part, centre.When blank 3 is deformed into by punch, when 2 of dies clamp mutually the curved U-shaped that is pressed into of blank 3 quilts.
2) push rod 5 is pressed down in the matched moulds process, slides to lowest order downwards along support chamber.
3) after U-bolt is shaped, the forcing press release, the dynamic model seat moves up, the pressure of downward direction disappears, therefore push rod 5 is subjected to the thrust that nitrogen spring 4 makes progress, and follows punch and makes progress away, and make blank 3 still be close to punch to make progress away, leave die 2 until blank, this moment, push rod 5 upwards slided to highest order along support chamber.
4) take out U-bolt, bend moulding and finish.
In bending the process of moulding, the support power of push rod provide by nitrogen spring and the power value constant.If the holding power of push rod is provided by common spring, then along with the compression or the deformation of common spring, its holding power constantly changes, and is unfavorable for bending moulding.The utility model adopts nitrogen spring to make bolt after bending follow mould and goes upward to together and leave the just demoulding behind the quiet mould, knockout course does not influence the A/F of U-bolt, and it is little that nitrogen spring has a volume, elastic force is big, stroke is long, stable working, make accurate, advantages such as long service life, spring curve is mild, the course of work does not need pretension, it is worked as the part of mould, can in system, easily realize constant pressure, thereby simplify mould design and the manufacturing that bends, make things convenient for mould to install and adjust, prolong the service life of mould, make curving apparatus have flex capability.

Claims (6)

1. air suspension U bolt shaping support spring structure, comprise bending mould and forcing press, it is characterized in that: described bending mould comprises punch, die, described die is fixed on the quiet die holder, and punch is arranged on the dynamic model seat, and described dynamic model seat is driven by forcing press, also comprise support chamber, described support chamber runs through dynamic model seat and die, is provided with push rod in the described support chamber, and push rod connects the nitrogen spring device.
2. air suspension U bolt shaping support spring structure according to claim 1 is characterized in that: described forcing press adopts 1000t or above hydraulic press.
3. air suspension U bolt shaping support spring structure according to claim 1 is characterized in that: be provided with a plurality of alignment pins in the bottom of described die and the top of quiet die holder.
4. air suspension U bolt shaping support spring structure according to claim 1, it is characterized in that: described nitrogen spring device comprises nitrogen cylinder, nitrogen spring, and nitrogen cylinder top is provided with piston, and piston is connected with push rod.
5. air suspension U bolt shaping support spring structure according to claim 4, it is characterized in that: the top of described nitrogen cylinder is provided with the nitrogen spring guider ring.
6. air suspension U bolt shaping support spring structure according to claim 4, it is characterized in that: described punch profile is a pocket-shape, and top is wider than in the punch bottom.
CN2013201187533U 2013-03-15 2013-03-15 Forming support spring structure for air-suspension U-shaped bolt Active CN203076423U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013201187533U CN203076423U (en) 2013-03-15 2013-03-15 Forming support spring structure for air-suspension U-shaped bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013201187533U CN203076423U (en) 2013-03-15 2013-03-15 Forming support spring structure for air-suspension U-shaped bolt

Publications (1)

Publication Number Publication Date
CN203076423U true CN203076423U (en) 2013-07-24

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CN2013201187533U Active CN203076423U (en) 2013-03-15 2013-03-15 Forming support spring structure for air-suspension U-shaped bolt

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206444A (en) * 2013-03-15 2013-07-17 广东富华工程机械制造有限公司 U-shaped bolt and preforming device, bending device and quenching and tempering method thereof
CN104646543A (en) * 2014-01-06 2015-05-27 广西西江锅炉制造有限公司 Compression-molding mold for pipeline anti-wear cover

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103206444A (en) * 2013-03-15 2013-07-17 广东富华工程机械制造有限公司 U-shaped bolt and preforming device, bending device and quenching and tempering method thereof
CN103206444B (en) * 2013-03-15 2015-02-04 广东富华工程机械制造有限公司 Preforming device of U-shaped bolt
CN104646543A (en) * 2014-01-06 2015-05-27 广西西江锅炉制造有限公司 Compression-molding mold for pipeline anti-wear cover

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20160713

Address after: 528322 Guangdong Province, Shunde District Leliu street village committee, one of the village of Port Road, No. 9

Patentee after: GUANGDONG FUHUA MACHINERY EQUIPMENT MANUFACTURING CO., LTD.

Address before: 528323, three, Huanglian Industrial Road, Leliu Town, Shunde District, Guangdong, Foshan

Patentee before: Guangdong Fuwa Engineering Manufacturing Co., Ltd.

C41 Transfer of patent application or patent right or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: GUANGDONG FUWA HEAVY INDUSTRIES Co.,Ltd.

Assignor: GUANGDONG FUWA EQUIPMENT MANUFACTURING Co.,Ltd.

Contract record no.: X2020440000054

Denomination of utility model: Forming support spring structure for air-suspension U-shaped bolt

Granted publication date: 20130724

License type: Common License

Record date: 20200327

EE01 Entry into force of recordation of patent licensing contract