CN208408336U - A kind of forming elbow system that can be wrinkle resistant - Google Patents

Abstract

The utility model relates to a kind of forming elbow systems that can be wrinkle resistant comprising fixed part and movable part；Movable fastening part and fixed fastening part are respectively equipped on movable part and fixed part, fixed fastening part includes Wrinkle-resisting unit and additional lock；Wrinkle-resisting unit includes wrinkle resistant piece and firm block, wrinkle resistant piece of inner surface is semi- cylindrical groove structure, firm block includes rear lateral portion and front side portion, the inner surface of front side portion is fixedly connected with wrinkle resistant piece of outer surface, and the inner edge face of rear lateral portion is the consistent semi-cylindrical recesses structure of inner surface radius with wrinkle resistant piece；When the front side portion of firm block is fastened on wrinkle resistant piece above, wrinkle resistant piece of inner surface is Chong Die with the axis of rear lateral portion.By clamping the Wrinkle-resisting unit that clip to bending tube, containing semi-cylindrical cavity is designed as in the utility model for fix in fastening part one in the system, then during metal tube or stainless steel tube bend pipe, it can prevent stainless steel tube bending place from phenomena such as fold occur.

Description

A kind of forming elbow system that can be wrinkle resistant

Technical field

The utility model relates to a kind of bending technologies of pipe, and in particular to a kind of forming elbow system that can be wrinkle resistant.

Background technique

Stainless steel disengaging tracheae, the exhaust pipe currently produced on the market connecting with engine, intercooler mostly uses curved Head plus straight tube butt welding process always exist weld cracking, weld seam gets rusty, has the techniques such as overlap, weld appearance be bad to lack in pipe It falls into.

Numerous domestic producer, which also always exists to consider with the direct bending of stainless steel tube, makes the idea of above-mentioned bend pipe, but thin Wall stainless steel tube Integral bending forming technique is always world's general character problem, conventional to bend, and there is the wrinkle of bending part, cracking Etc. open defects be the generally existing fact.Although the applicant provides in one in patent applied for 201711081167.5 The completely new bending that can be prevented fold cracking, effectively realize thin metallic tubd, but careless manipulation or wall is too thin still may be used sometimes More or less buckling phenomena can be will appear, therefore, on the basis of the technology, the applicant develops in the utility model again The device for preventing fold, significant effect, for patent applied for operation require decrease, can almost prevent metal There is the phenomenon that fold in pipe.

Utility model content

In view of this, being solved existing the purpose of the utility model is to provide a kind of forming elbow system that can be wrinkle resistant Deficiency present in technology.

The purpose of this utility model is to be achieved through the following technical solutions:

A kind of forming elbow system that can be wrinkle resistant comprising be capable of fixing the fixed part to bending tube and can be relative to The movable part of fixed part rotation；The fixed part includes Wrinkle-resisting unit and additional lock, the inner surface of the Wrinkle-resisting unit and additional lock It is semi-cylindrical cavity so that the two can firmly be clipped to bending tube；The Wrinkle-resisting unit includes wrinkle resistant piece and consolidates Block, wrinkle resistant piece of the inner surface are semi- cylindrical groove structure, and the firm block includes the rear lateral portion being connected to each other and front side Portion, the inner surface of the front side portion are fixedly connected with wrinkle resistant piece of the outer surface, the inner edge face of the rear lateral portion be with it is wrinkle resistant The consistent semi-cylindrical recesses structure of the inner surface radius of block；When the front side portion of firm block is fastened on wrinkle resistant piece above, wrinkle resistant piece Inner surface it is Chong Die with the axis of rear lateral portion.

Further, one end of the movable part is equipped with fixing axle, the movable part close to the corner of the fixed part It makes rotating motion along fixing axle.

Further, the Wrinkle-resisting unit is disposed in proximity to one end of fixing axle.

Further, the formation system further includes being inserted into bending tube and the mandrel component that moves reciprocatingly；Institute It states Wrinkle-resisting unit while being located at close to one end of mandrel component.

Further, described wrinkle resistant piece is the wrinkle resistant portion being made of copper.

Further, the inner surface of the firm block is that rear lateral portion outwardly protrudes the ladder-like interior table that front side portion is recessed inwardly Face, front side portion inner surface are fixedly connected with rear lateral portion inner surface by joint face；When the front side portion of firm block is fastened on wrinkle resistant piece When upper, wrinkle resistant piece of the rear end face is against on the joint face of firm block.

Further, described wrinkle resistant piece includes the main part for being located at rear end positioned at the central role portion of front end, the core The thickness of service portion successively decreases from back to front；The front end of the firm block is fastened on the outer surface of the main part.

Further, the direction in the central role portion is towards the side of movable part.

Further, the Wrinkle-resisting unit with fixed device be it is removable be fixedly connected, the inside of fixed device and anti- The outer surface of wrinkle device is cooperatively connected just.

Further, the fixed device and fixing axle are integrally formed or removable are fixedly connected.

Further, the inner surface of the front side portion is removable be fixedly connected with wrinkle resistant piece of the outer surface；And institute Wrinkle resistant piece of outer surface is stated to cooperate just with the inner surface of firm block so that the two is combined closely.

Further, wrinkle resistant piece of the outer surface is equipped with the raised line that outwardly protrudes, the front side portion of the firm block it is interior Surface is equipped with the recess portion cooperated just with the raised line.

Further, described wrinkle resistant piece and firm block are connected through a screw thread so that the combination of the two is closer and connect jail Gu.

The utility model at least has the advantages that

The utility model provides a kind of forming elbow system that can be wrinkle resistant, by by one in fixed part in the system A Wrinkle-resisting unit for clamping clip to bending tube, containing semi-cylindrical cavity and being designed as in the utility model, then in metal During pipe or stainless steel tube bend pipe, it can prevent stainless steel tube bending place from phenomena such as fold or wall thickness uneven distribution occur, make Processed bending pipe surface it is smooth, without any fold, without any cracking phenomena, effect is very good；And in the present apparatus Wearing terrain is wrinkle resistant piece, then can also be replaced after its damage, not influence continuing to use for firm block.

Detailed description of the invention

Fig. 1 is the schematic top plan view of forming elbow system described in the utility model embodiment；

Fig. 2 is the structural schematic diagram described in the utility model embodiment to bending tube in the process of bending；

Fig. 3 is the schematic perspective view of Wrinkle-resisting unit described in the utility model embodiment；

Fig. 4 is the side view of Wrinkle-resisting unit described in the utility model embodiment；

Fig. 5 is wrinkle resistant piece described in the utility model embodiment of schematic perspective view；

Fig. 6 is wrinkle resistant piece described in the utility model embodiment of side view；

Fig. 7 is the side view of firm block described in the utility model embodiment；

Fig. 8 is the inner surface structure schematic diagram of firm block described in the utility model embodiment；

Fig. 9 is the side view of Wrinkle-resisting unit shown in the utility model embodiment 3.

In figure, 1, firm block, 2, wrinkle resistant piece, 3, fixed part, 4, movable fastening part, 5, fixed fastening part, 6, movable part, 7, Fixing axle, 9, to bending tube, 10, rear lateral portion, 11, front side portion, 12, recess portion, 13, joint face, the 14, second threaded hole, 15, recess Place, 20, main part, 21, central role portion, 22, raised line, the 23, first threaded hole, 30, fixed device, 31, mandrel component, 32, Additional lock, the 33, first semi-cylindrical cavity, the 34, second semi-cylindrical cavity, 35, Wrinkle-resisting unit.

Specific embodiment

The technical scheme in the utility model embodiment is clearly and completely described below, it is clear that described reality Applying example is the utility model a part of the embodiment, instead of all the embodiments.The embodiments of the present invention presented below Detailed description be not intended to limit the range of claimed invention, but be merely representative of the selected of the utility model Embodiment.Based on the embodiments of the present invention, this field commonsense method personnel are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.

Embodiment 1

As shown in Fig. 1~8, a kind of forming elbow system that can be wrinkle resistant comprising be capable of fixing the fixation to bending tube 9 Portion 3 and the movable part 6 that can be rotated relative to fixed part 3；Being respectively equipped on the movable part 6 and fixed part 3 closely to wrap It is rolled in the movable fastening part 4 on bending tube 9 and fixed fastening part 5, the fixed fastening part includes 35 He of Wrinkle-resisting unit The inner surface of additional lock 32, the Wrinkle-resisting unit 35 and additional lock 32 is semi-cylindrical cavity so that the two can be clipped firmly To bending tube 9, i.e., in Wrinkle-resisting unit 35 and additional lock 32, the semi-cylindrical cavity of the two mutually to being combined when, form One cylindrical cavity that can be accommodated just to bending tube 9；Movable fastening part 4 also includes two semi-cylindrical cavities, i.e., the One semi-cylindrical cavity 33 and the second semi-cylindrical cavity 34, two semi-cylindrical cavities (33,34) mutually to being combined when, Form the cylindrical cavity that can be accommodated just to bending tube 9.

The Wrinkle-resisting unit 35 includes wrinkle resistant piece 2 and firm block 1, and wrinkle resistant piece 2 of the inner surface is semi- cylindrical groove Structure.The firm block 1 includes the rear lateral portion 10 being connected to each other and front side portion 11, and the inner surface of front side portion 11 and rear lateral portion 10 Inner surface between formed rear lateral portion 10 outwardly protrude the ladder-like inner surface that front side portion 11 is recessed inwardly, recess 15 such as attached drawing Shown in label 15,11 inner surface of front side portion is fixedly connected with 10 inner surface of rear lateral portion by joint face 13；The front side portion 11 Inner surface is fixedly connected with wrinkle resistant piece 2 of the outer surface, and the inner edge face of the rear lateral portion 10 is the inner surface half with wrinkle resistant piece 2 The consistent semi-cylindrical recesses structure of diameter.

When the front side portion 11 of firm block 1 is fastened on wrinkle resistant piece 2, wrinkle resistant piece 2 of the rear end face is against firm block 1 On joint face 13, wrinkle resistant piece 2 of inner surface is Chong Die with the axis of rear lateral portion 10, and distance of the axis away from inner surface is consistent, i.e., and two The inner surface of person flushes, then the metal winding pipe surface processed is just not in the fold being not necessarily to.Above-mentioned structure feature There is the phenomenon that fold when largely can be avoided metal tube bending.

Only by a clip in fixed fastening part 5 be designed as Wrinkle-resisting unit 35 can cost performance it is higher realize it is wrinkle resistant With the function of normal bend pipe, time cost and fund cost are all very high if being all designed as Wrinkle-resisting unit, and intensity can not yet Meet demand, if designing Wrinkle-resisting unit on movable fastening part 4, effect is had a greatly reduced quality.

Described wrinkle resistant piece 2 is the wrinkle resistant portion being made of copper；The quality of copper is neither too hard, nor too soft, in metal if rigidity is too strong Being easy to appear metal tube surface when the metal tube bending of pipe, especially thin-walled has the phenomenon that fold, is easy if rigidity is too weak So that wrinkle resistant piece 2 of inner surface unevenness phenomenon is occurred, be easier fold when metal tube being caused to bend, and rigidity it is too weak but also Wrinkle resistant piece 2 of service life is too short, and the material of copper can reach changing firmness requirements can realize wrinkle-proof effect.

One end of the movable part is equipped with fixing axle 7 close to the corner of the fixed part, and the movable part 6 is connected to solid It can rotate on dead axle 7 and in fixing axle 7 so that movable part can make rotating motion along fixing axle 7, then bend wait bend When pipe 9, fixed part 3 is placed in the way of in Fig. 1 with movable part 6, i.e., movable part 6 and fixed part 3 be clipped in straight trip wait bend On pipe 9, then movable part makes rotating motion along fixing axle 7, i.e., fixed part and fixed part clip motionless to bending tube 9, Movable part 6 is rotated to bending tube 9 relative to fixed part to what it was clipped, then the mistake of fixed part rotation is gradually distance from movable part Cheng Zhong, as shown in Fig. 2, being bent to 9 part of bending tube between movable part and fixed part.Preferably, also fixation is set fixed part It sets in fixing axle, but it will not be rotated relative to fixing axle, and movable part is that rotation is connected in fixing axle 7, to realize Movable part carries out the bending of broken pipe 9 to be curved relative to fixed part rotation.

Described wrinkle resistant piece 2 includes the main part 20 for being located at rear end positioned at the central role portion 21 of front end, the central role The thickness in portion 21 successively decreases from back to front, i.e., more and more thinner；The front end of the firm block 1 is fastened on the outer of the main part 20 just Surface.Copper wrinkle resistant piece 2 cooperates central role portion 21 again gradually thin structure feature is very heavy for the elimination of fold from back to front Want, the increase of this feature almost can absolutely eliminate fold, and if without this feature, more or less have certain pleat Wrinkle, the especially thin metal tube of wall are easier.

The Wrinkle-resisting unit is disposed in proximity to one end of fixing axle 7.The formation system further includes being inserted into wait bend Pipe 9 and the mandrel component 31 to move reciprocatingly；The Wrinkle-resisting unit is located at simultaneously close to one end of mandrel component 31.I.e. referring to attached Fig. 1 and 2, if mandrel component 31 is protruded into from the right side to bending tube 9 to which in bending tube 9, fixing axle is located at upper end, then Wrinkle-resisting unit Positioned at the position in upper right side, could preferably realize so wrinkle resistant.

The direction in the central role portion 21 is towards the side of movable part.The direction in central role portion 21 is for bending tube 9 molding is extremely important, and only it is just able to achieve towards movable part and can meet intensity again and can be realized wrinkle resistant function.

Further preferred embodiment, the fixed part further include fixed device 30, the Wrinkle-resisting unit with fixation Device 30 is fixedly connected to be removable, and the inside of fixed device 30 and the outer surface of Wrinkle-resisting unit are cooperatively connected just.It is i.e. fixed Device 30 is closely against the outside of Wrinkle-resisting unit, so as to one more firm power of Wrinkle-resisting unit be given, so as to bending tube It is dispersed on fixed device 30 to the power on Wrinkle-resisting unit in the process of bending, increases Wrinkle-resisting unit to the effect of external force resistance, Also increase the service life of Wrinkle-resisting unit；Central role portion 21 on especially wrinkle resistant piece, since it is than relatively thin, in the feelings for having external force It is easy to bending deformation under condition, therefore fixed device is closely against to application of the outer surface for this Wrinkle-resisting unit of Wrinkle-resisting unit It is extremely important.

Further preferred embodiment, (i.e. fixed device 30 is solid to the fixed device 30 with the integrated molding of fixing axle 7 A part in dead axle 7) or removable be fixedly connected.

Further preferred embodiment, the inner surface of the front side portion 11 are removable with wrinkle resistant piece 2 of the outer surface Dress is fixedly connected.

The inner surface of further preferred embodiment, wrinkle resistant piece 2 of the outer surface and firm block 1 cooperate just so that The two is combined closely.

In the present embodiment, about the specific structure of specific forming elbow system, bending method, 31 (phase of mandrel component When the mandrel component 1 in patent applied for 201711081167.5) specific structure and application method etc. can be referring specifically to The some published technology contents of explanation are not repeated herein in applicant's patent applied for 201711081167.5.

Embodiment 2

As shown in Figure 6 and 9, on the basis of embodiment 1, the rear lateral portion in described wrinkle resistant piece 2 of length L1 and firm block 1 10 length L2 ratio is (1.3~4): 1, such as 1.6: 1,2: 1,3: 1.

The length L3 in the central role portion 21 and the length L4 ratio of main part 20 are 1: (2~5).

21 front end of central role portion with a thickness of 0.3~1mm, such as 0.5mm, 0.7mm, 0.9mm, 1.1mm, most The thickness of front end is extremely important for wrinkle-proof effect, it usually needs then then its wrinkle-proof effect is best in 1mm or left and right；Central role 21 rear end of portion with a thickness of 5~50mm, such as 15mm, depending on actual conditions.

Above length ratio or data belongs to the data after optimization, if not within the above range, wrinkle-proof effect The big heavy discount of meeting, other intensity and other effects also will receive influence.

Embodiment 3

As shown in Fig. 3~8, on the basis of embodiment 1, the inner surface of front side portion 11 and wrinkle resistant piece 2 of the outer surface The removable mode being fixedly connected can are as follows: wrinkle resistant piece 2 of the outer surface is equipped with the raised line 22 outwardly protruded, the firm block 1 The inner surface of front side portion 11 be equipped with the recess portion 12 that cooperates just with the raised line 22, i.e. recess portion 12 accommodates the raised line just 22 so that the two closely connects.Only firm block 1 is combined closely with wrinkle resistant piece 2 could preferably send out as an organic whole Wrinkle-proof effect is waved, therefore is closely connected extremely important.

Further preferred embodiment, as shown in figure 9, in wrinkle resistant piece of the outer surface, the part of 22 two sides of raised line At least side is to have micro- concave structure being recessed inwardly in its length direction, and accordingly, the inner surface of the front side portion 11 is set Have with the convex shape of concave structure cooperation so that wrinkle resistant piece more firm with the combination of firm block 1, that is, consolidates the front side of block 1 In the inner surface in portion, at least side of recess portion 12 is equipped with the convex shape with concave structure corresponding matching.

Embodiment 4

As shown in figs. 5 and 8, on the basis of embodiment 2, described wrinkle resistant piece is connected through a screw thread with firm block 1 so that two The combination of person is closer and is connected firmly.

Further preferred embodiment, wrinkle resistant piece of the center are equipped with inside and outside it (or upper and lower) two surfaces First threaded hole 23, the front side portion of the firm block 1 are equipped with inside and outside it second threaded hole 14 on (or upper and lower) two surfaces, First threaded hole 23 is connect with the second threaded hole 14 by hexagon socket head cap screw.

In the present invention, thin metallic tubd or the wrinkle resistant of stainless steel tube are a more delicate technical problems, this Multiple technical characteristics in utility model are mutually related in fact, and only synergistic effect is just able to achieve best effects and prevents to prevent The purpose of wrinkle, therefore, above-mentioned technical characteristic, which is isolated, to come can have an important influence on effect.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, for this field For technical staff, the utility model can have various modifications and changes.All institutes within the spirit and principle of the utility model Any modification, equivalent substitution, improvement and etc. of work, should be included within the scope of protection of this utility model.

Claims (10)

1. the forming elbow system that one kind can be wrinkle resistant comprising be capable of fixing the fixed part to bending tube and can be relative to solid Determine the movable part of portion's rotation；It is characterized by: the fixed part includes Wrinkle-resisting unit and additional lock, the Wrinkle-resisting unit and additional lock Inner surface be semi-cylindrical cavity so that the two can firmly be clipped to bending tube；

The Wrinkle-resisting unit includes wrinkle resistant piece and firm block, and wrinkle resistant piece of the inner surface is semi- cylindrical groove structure, described Firm block includes the rear lateral portion being connected to each other and front side portion, and the inner surface of the front side portion is fixed with wrinkle resistant piece of the outer surface Connection, the inner edge face of the rear lateral portion are the consistent semi-cylindrical recesses structure of inner surface radius with wrinkle resistant piece；When firm block Front side portion be fastened on wrinkle resistant piece it is upper when, wrinkle resistant piece of inner surface is Chong Die with the axis of rear lateral portion.

2. forming elbow system that can be wrinkle resistant according to claim 1, it is characterised in that: one end of the movable part is leaned on The corner of the nearly fixed part is equipped with fixing axle, and the movable part makes rotating motion along fixing axle；

The Wrinkle-resisting unit is disposed in proximity to one end of fixing axle；

The formation system further includes being inserted into bending tube and the mandrel component that moves reciprocatingly；The Wrinkle-resisting unit is simultaneously Positioned at one end close to mandrel component.

3. forming elbow system that can be wrinkle resistant according to claim 1 or 2, it is characterised in that: described wrinkle resistant piece is served as reasons The wrinkle resistant portion that copper is constituted.

4. forming elbow system that can be wrinkle resistant according to claim 3, it is characterised in that: the inner surface of the firm block The ladder-like inner surface that front side portion is recessed inwardly is outwardly protruded for rear lateral portion, front side portion inner surface and rear lateral portion inner surface pass through company Junction is fixedly connected；When the front side portion of firm block is fastened on wrinkle resistant piece above, wrinkle resistant piece of the rear end face is against firm block On joint face.

5. forming elbow system that can be wrinkle resistant according to claim 1, it is characterised in that: described wrinkle resistant piece includes being located at The central role portion of front end is located at the main part of rear end, and the thickness in the central role portion successively decreases from back to front；The firm block Front end be fastened on the outer surface of the main part.

6. forming elbow system that can be wrinkle resistant according to claim 5, it is characterised in that: the side in the central role portion To the side towards movable part.

7. forming elbow system that can be wrinkle resistant according to claim 1, it is characterised in that: the fixed part further includes solid Determine device, the Wrinkle-resisting unit with fixed device be it is removable be fixedly connected, the inside of fixed device and Wrinkle-resisting unit it is outer Surface is cooperatively connected just；

The fixed device and fixing axle are integrally formed or removable are fixedly connected.

8. forming elbow system that can be wrinkle resistant according to claim 1, it is characterised in that: the inner surface of the front side portion It is removable be fixedly connected with wrinkle resistant piece of the outer surface；

And wrinkle resistant piece of the outer surface and the inner surface of firm block cooperate just so that the two is combined closely.

9. forming elbow system that can be wrinkle resistant according to claim 8, it is characterised in that: wrinkle resistant piece of the outer surface Equipped with the raised line outwardly protruded, the inner surface of the front side portion of the firm block is equipped with the recess portion cooperated just with the raised line.

10. forming elbow system that can be wrinkle resistant according to claim 8 or claim 9, it is characterised in that: described wrinkle resistant piece with it is steady Gu block is connected through a screw thread so that the combination of the two is closer and be connected firmly.