CN206144924U

CN206144924U - Fastener

Info

Publication number: CN206144924U
Application number: CN201621076529.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Shenzhen Guangqi Sophisticated Technique LLC
Current assignee: Shenzhen Guangqi Sophisticated Technique LLC
Priority date: 2016-09-23
Filing date: 2016-09-23
Publication date: 2017-05-03
Anticipated expiration: 2026-09-23

Abstract

The utility model provides a fastener, include: relative last mould and the lower mould that sets up, one end is fixed to the lower mould and is passed the screw rod of mould, and another end screw thread connection of screw rod has the nut, the cover is equipped with spring and bush on the screw rod between last mould and nut. The utility model provides an enough avoid the evacuation, apply the fastener that the glued membrane was given to flexible elasticity simultaneously.

Description

Securing member

Technical field

This utility model is related to a kind of securing member.

Background technology

Glued membrane also known as thin-filmy polymeric adhesive, need pressurization and height/intermediate temperature setting, because glue-line is easily controllable, thick Degree is thin and even, thus adhesive strength is very high, and toughness is again good, and durability is excellent.It is widely used in Aero-Space, bullet train, ship Deng the bonding of field structure part.

Splicing is to be pressurizeed using glued membrane (thin-filmy polymeric adhesive) and elevated cure, the machinery produced on joint face Adhesion, physical absorption power and Chemical bonding and make two to be glued the processes that are bonded together of part.Splicing is not only fitted For same material, foreign material is also applied for, adhesive bonding technique is more and more extensive in the application of aviation field.

At present, during glued membrane elevated cure, since it is desired that apply continuous, so, frequently with the mode of evacuation Pressure.But in some application scenarios, under conditions of two parts being glued are unable to evacuation, just solidified using securing member locking Mode apply pressure.Securing member applies pressure to by splicing face by screw-down torque, in glued membrane solidification process, because of glued membrane liter To after uniform temperature, flowing can be produced, thinning by the film thickness on splicing face, now the screw-down torque of securing member can subtract significantly It is little, it is applied to and can be also strongly reduced by the pressure for being glued face, so as to directly affects bonding effect.

Utility model content

For problem present in correlation technique, the purpose of this utility model is to provide one kind to avoid evacuation, Apply securing member of the flexible elastic force to glued membrane simultaneously.

One side of the present utility model provides a kind of securing member, including：The upper die and lower die being oppositely arranged；One end is fixed to Lower mould the screw rod through upper mould, the other end of screw rod are threaded with nut；It is arranged on screw rod between upper mould and nut There are spring and bushing.

According to this utility model, height of height of the spring before not being loaded higher than bushing.

According to this utility model, when the two ends of bushing contact upper mould and nut respectively, spring is loaded by upper mould and nut.

According to this utility model, pad, the diameter with diameter greater than bushing of pad between nut and spring, are provided with.

According to this utility model, bushing is arranged on the outside of spring.

According to this utility model, lower mould offers screwed hole, and screw rod is fixedly connected with lower mould by screwed hole.

According to this utility model, upper mould offers through hole, and screw rod is slidably connected through through hole with upper mould.

According to this utility model, it is provided between bushing and upper mould and the isodiametric packing ring of bushing.

According to this utility model, the bushing is configured to circular sleeve.

According to this utility model, height adjustable of the bushing relative to the upper surface of the upper mould.

Advantageous Effects of the present utility model are：

This utility model increases bushing and spring on the basis of traditional securing member, and the effect of bushing is limited spring Deflection, the effect of spring is the elastic force that the pretightning force of securing member is become spring, though glued membrane heat up after because flow it is thinning, The deflection of spring is changed very little, and force variation is also minimum, and the pressure change for being applied to glued membrane is also minimum, even if true so as to not take out Sky can also apply the elastic force of flexibility to glued membrane, it is ensured that the effect of the splicing after glued membrane solidification.

Description of the drawings

Fig. 1 is the schematic diagram of securing member of the present utility model.

Specific embodiment

Refer to the attached drawing discloses the embodiment for illustrating.It will be appreciated, however, that the disclosed embodiments only can with various and The embodiment that alternative form shows.Accompanying drawing is not necessarily drawn to scale, and it is specific to show to zoom in or out some features The details of part.Disclosed concrete structure and functional details should not be construed as restriction, but conduct for instructing this area How technical staff puts into practice the representative basis of the disclosure.

Reference Fig. 1, securing member of the present utility model, including：The upper mould 10 being oppositely arranged and lower mould 20；One end is fixed to down Mould 20 screw rod 30 through upper mould, the other end of screw rod 30 are threaded with nut 40；Between upper mould 10 and nut 40 Spring 50 and bushing 60 are arranged with screw rod 30.This utility model increases bushing 60 and bullet on the basis of traditional securing member Spring 50, the effect of bushing 60 are the deflections of limited spring 50, and the effect of spring 50 is that the pretightning force of securing member is become spring Elastic force, even if glued membrane 110 heat up after because flow it is thinning, the deflection of spring 50 is changed very little, and force variation is also minimum, apply It is also minimum to the pressure change of glued membrane 110, even if so as to not evacuation can also apply the elastic force of flexibility to glued membrane 110, it is ensured that The effect of the splicing after the solidification of glued membrane 110.

With reference to Fig. 1, height of height of the spring 50 before not being loaded higher than bushing 60.It should be appreciated that working as bushing 60 Two ends when contacting mould 10 and nut 40 respectively, spring 50 is loaded by upper mould 10 and nut 40.When the two ends of bushing 60 are distinguished Mould 10 and during nut 40 in contact, illustrates that nut has been adjusted to extreme position, it is impossible to be further continued for have adjusted, now spring 50 Must be loaded, otherwise lose spring 50 effect of itself.

With reference to Fig. 1, pad 70, the diameter with diameter greater than bushing 60 of pad 70 between nut 40 and spring 50, are provided with. It is for the inside for preventing nut from entering spring 50 and bushing 60, so as to effectively apply pressure to spring 50 to arrange pad 70.

With reference to Fig. 1, bushing 60 is arranged on the outside of spring 50, for protecting spring 50, prevents which from deforming.

With reference to Fig. 1, lower mould 20 offers screwed hole, and screw rod 30 is fixedly connected with lower mould 20 by screwed hole.Upper mould 10 is opened Through hole is provided with, screw rod 30 is slidably connected through through hole with upper mould 10.Screw rod 30 ensure that nut 40 with being slidably connected for upper mould 10 On pressure can pass to first by bonded part 80 and second by bonded part 90 and glued membrane 110 by upper mould 10.

With reference to Fig. 1, it is preferable that bushing 60 is configured to circular sleeve.It is provided between bushing 60 and upper mould 10 and bushing 60 Isodiametric packing ring 100, correspondingly, packing ring 100 is also configured as annular.Height of the bushing 60 relative to the upper surface of upper mould 10 It is adjustable.Specifically, by the quantity of control packing ring 100, the height of bushing 60 can be controlled, so as to control to be applied to glued membrane Pressure size on 110.

With reference to Fig. 1, another aspect of the present utility model provides a kind of glued membrane curing, and glued membrane curing is by as above Described securing member is carried out, and the method comprises the steps：First is arranged between upper mould 10 and lower mould 20 by 80 He of bonded part Second by bonded part 90；Glued membrane 110 is arranged by bonded part 80 and second first between bonded part 90；Rotary screw 30, with Spring 50 is compressed to bushing 60 to be contacted with upper mould 10 and nut 40 respectively；Heating glued membrane 110 is so that glued membrane 110 solidifies.Specifically For, nut 40 is tightened by torque spanner, nut 40 is down moved along the screw thread on screw rod 30, is pressed to pad 70, pad Piece 70 is acted on spring 50, when spring 50 is compressed into extreme position, after 70 contact bush 60 of pad.The bullet of spring 50 Power is applied to mould 10 and lower mould 20, acts on first by the upper surface of bonded part 80 and second by the lower surface of bonded part 90, And then act on glued membrane 110.

Preferably, by baking oven for heating glued membrane 110.And by the number for adjusting the coefficient of elasticity and packing ring 100 of spring 50 The pressure size for measuring to control to be applied on glued membrane 110.

Preferred embodiment of the present utility model is these are only, this utility model is not limited to, for this area Technical staff for, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle within, Any modification, equivalent substitution and improvements made etc., should be included within protection domain of the present utility model.

Claims

1. a kind of securing member, including：

The upper die and lower die being oppositely arranged；

One end is fixed to the lower mould the screw rod through the upper mould, and the other end of the screw rod is threaded with nut；

Characterized in that, being arranged with spring and bushing on screw rod on described between mould and the nut.

2. securing member according to claim 1, it is characterised in that height of the spring before not being loaded is higher than institute State the height of bushing.

3. securing member according to claim 1, it is characterised in that when the two ends of the bushing contact respectively the upper mould and During the nut, the spring is loaded by the upper mould and the nut.

4. securing member according to claim 1, it is characterised in that be provided with pad between the nut and the spring, The diameter with diameter greater than the bushing of the pad.

5. securing member according to claim 1, it is characterised in that the bushing is arranged on the outside of the spring.

6. securing member according to claim 1, it is characterised in that the lower mould offers screwed hole, and the screw rod passes through The screwed hole is fixedly connected with lower mould.

7. securing member according to claim 1, it is characterised in that the upper mould offers through hole, the screw rod passes through institute State through hole to be slidably connected with the upper mould.

8. securing member according to claim 1, it is characterised in that be provided between the bushing and the upper mould with it is described The isodiametric packing ring of bushing.

9. securing member according to claim 1, it is characterised in that the bushing is configured to circular sleeve.

10. securing member according to claim 1, it is characterised in that the bushing is relative to the upper surface of the upper mould Height adjustable.