CN205763535U - A kind of spring that reverses manufactures mould - Google Patents

Abstract

The utility model discloses a kind of spring that reverses and manufacture mould, including bending die and coiling plug, described bending die includes bending die body and journal stirrup type block, described journal stirrup type block is fixed on the middle position of described bending die body, described bending die body bottom portion is provided with a groove, and described coiling plug is arranged in described groove.The molding mode of this utility model duplex torsion spring is one-shot forming, eliminate welding sequence, saved cost simultaneously, improve the service life of duplex torsion spring, and, in the design of mould, introduce contoured design, not only improve the production efficiency of duplex torsion spring, and improve the machining accuracy of duplex torsion spring.

Description

A kind of spring that reverses manufactures mould

Technical field

This utility model relates to torsion spring processing technique field, particularly relates to a kind of spring that reverses and manufactures mould.

Background technology

At present, with engine lathe produce duplex torsion spring processing method be the most respectively with coiling plug process left-handed torsion spring bullet Spring and dextrorotation torsionspring, be connected as a duplex torsion spring the most again by the way of welding by left and right torsion spring.

There is following problem in current this processing method: (1) waste of raw materials is many, and welding difficulty is big.Owing to being point Open that coiling is left-handed and dextrorotation, manufacturing process can be stayed ruthless many clouts, simultaneously as the many spring steel of alloying element content in weldering Termination process is easily formed be mingled with, the defect such as crackle.(2) spring performance reduces.After welding, the tensile strength of part material is less than The tensile strength of mother metal, reduces the mechanical performance of spring.(3) working (machining) efficiency is low.The manufacturing procedure of spring is many, the process-cycle Long.(4) machining accuracy is low.Owing to left-handed spring and dextrorotation spring are independent coilings, therefore its external diameter and stress there are differences, Cause the coaxiality error between the left-right rotary of same spring big.Weld Assurance of Size ability simultaneously, often lead to two Spacing tolerance between angle cannot ensure drawing requirement.

Utility model content

This utility model mainly solves the technical problem in the presence of prior art, thus provides a kind of and save former material Material, the torsion spring that manufacturing procedure is few, the cycle is short and crudy is stable manufacture mould.

Above-mentioned technical problem of the present utility model is mainly addressed by following technical proposals:

The duplex torsion spring that this utility model provides manufactures mould, and including bending die and coiling plug, described bending die includes Bending die body and journal stirrup type block, described journal stirrup type block is fixed on the middle position of described bending die body, described bending die Body bottom portion is provided with a groove, and described coiling plug is arranged in described groove.

Further, described coiling plug and the described detachable connection of bending die body.

Further, described bending die body being additionally provided with limited block, described limited block is positioned at the one of described journal stirrup type block Side.

The beneficial effects of the utility model are: the molding mode of duplex torsion spring is one-shot forming, eliminates welding sequence, Save cost simultaneously, improve the service life of duplex torsion spring, and, the design of mould introduces contoured design, no But improve the production efficiency of duplex torsion spring, and improve the machining accuracy of duplex torsion spring.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only It is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.

Fig. 1 is the method flow diagram of extraordinary duplex torsion spring manufacture method of the present utility model；

Fig. 2 is the front view that extraordinary duplex torsion spring of the present utility model manufactures mould；

Fig. 3 is the left view that extraordinary duplex torsion spring of the present utility model manufactures mould.

Detailed description of the invention

Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model Can be easier to be readily appreciated by one skilled in the art with feature, thus protection domain of the present utility model is made apparent clearly Define.

Refering to shown in Fig. 1, extraordinary duplex torsion spring manufacture method of the present utility model, it comprises the following steps:

S1, coiling plug 1 is arranged on lathe 2, around making a sidespin end of duplex torsion spring, former in this utility model Material steel wire diameter, from 0.5mm to 3.5mm, so can ensure that under the elastic force premise of duplex torsion spring, reduces the coiling of duplex torsion spring Difficulty.

S2, coiling plug 1 is arranged on bending die 3, the middle journal stirrup 4 of duplex torsion spring is carried out profiling coiling

S3, carry out the coiling of another sidespin end of duplex torsion spring.

The molding mode of duplex torsion spring of the present utility model is one-shot forming, eliminates welding sequence, has saved one-tenth simultaneously This, improve the service life of duplex torsion spring, and, the design of mould introduces contoured design, not only improves duplex and turn round The production efficiency of spring, and improve the machining accuracy of duplex torsion spring.

Specifically, further comprise the steps of: after step S3

S4, duplex torsion spring is carried out stress relaxation；Prevent stress from concentrating, cause the mechanical properties decrease of duplex torsion spring,

S5, to the number of active coils of duplex torsion spring and the making of journal stirrup, repair each shelves size of duplex torsion spring simultaneously；

S6, the duplex torsion spring trimmed is identified, facilitates follow-up management and classification.

It is also preferred that the left further comprise the steps of: after step S2

S21, another sidespin end limited block 5 of duplex torsion spring carry out the fixing of journal stirrup 4 side.Wherein, limited block 5 is permissible For screw, bar shaped block etc., by arrange limited block 5 make another sidespin end of duplex torsion spring in winding process, middle journal stirrup 4 Deformation will not be pullled.

Refering to shown in Fig. 2-3, a kind of extraordinary duplex torsion spring manufactures mould and includes bending die 4 and coiling plug 1, bending die 4 Including bending die body 41 and journal stirrup type block 42, journal stirrup type block 42 is fixed on the middle position of bending die body 41, bending die Being provided with a groove 43 bottom body 41, coiling plug 1 is arranged in groove 43.In the present embodiment, when coiling plug 1 is arranged on recessed Time in groove 43, also having a gap between coiling plug 1 and groove 43, the size in this gap is more than the raw materials used steel of duplex torsion spring The diameter of silk.So can guarantee that and successfully another sidespin end of duplex torsion spring is carried out coiling.

It is also preferred that the left bending die body 41 and journal stirrup type block 42 can use integral type processing mode machine-shaping, it processes work Sequence is few, low cost.And the coiling of duplex torsion spring for convenience, coiling plug 1 and the detachable connection of bending die body 41.

It is also preferred that the left be additionally provided with limited block 5 on bending die body 41, limited block 5 is positioned at the side of journal stirrup type block 42.By limit The position-limiting action of position block 5, can improve duplex torsion spring to carry out spacing around making side duplex torsion spring on opposing connection coremaking rod 1 The coiling precision of opposite side.

Above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model is not limited thereto, Any change expected without creative work or replacement, all should contain within protection domain of the present utility model.Therefore, Protection domain of the present utility model should be as the criterion with the protection domain that claims are limited.

Claims (3)

1. one kind is reversed spring manufacture mould, it is characterised in that including bending die and coiling plug, described bending die includes bending die Body and journal stirrup type block, described journal stirrup type block is fixed on the middle position of described bending die body, at the bottom of described bending die body Portion is provided with a groove, and described coiling plug is arranged in described groove.

2. the spring that reverses as claimed in claim 1 manufactures mould, it is characterised in that described coiling plug and described bending die body Detachable connection.

3. the spring that reverses as claimed in claim 1 manufactures mould, it is characterised in that be additionally provided with spacing on described bending die body Block, described limited block is positioned at the side of described journal stirrup type block.