阅读说明：本技术 一种多点成形自由弯管装置 (A kind of free swan neck system of multi-point forming ) 是由 鹿玲 康自强 赵可心 陈继刚 于 2019-08-29 设计创作，主要内容包括：本发明公开了一种多点成形自由弯管装置,包括支撑结构、旋转结构和变形结构。旋转结构包括回转架,回转架具有第一通孔,回转架穿过支撑结构并与支撑结构转动连接；变形结构包括导向架、多个相互平行的第一液压缸和一个第二液压缸,导向架与回转架固定相连,第一液压缸和第二液压缸的缸体均固定于导向架上且活塞杆的伸缩端均朝向导向架内侧,第一液压缸、第二液压缸和回转架的轴线共面,靠近回转轴架的第一液压缸与第二液压缸同轴,第一液压缸和第二液压缸的活塞杆的伸出端均转动连接有成形轮。与现有技术相比,本发明的多点成形自由弯管装置结构紧凑、适应性强,可实现三维自由弯管,成形质量高,成形效率高。(The invention discloses a kind of free swan neck systems of multi-point forming, including support construction, rotational structure and distressed structure.Rotational structure includes reversing frame, and reversing frame has first through hole, and reversing frame passes through support construction and is rotatablely connected with support construction；Distressed structure includes leading truck, multiple first hydraulic cylinders being parallel to each other and a second hydraulic cylinder, leading truck is fixedly linked with reversing frame, the cylinder body of first hydraulic cylinder and second hydraulic cylinder is both secured on leading truck and the telescopic end of piston rod is towards leading truck inside, the axis co-planar of first hydraulic cylinder, second hydraulic cylinder and reversing frame, first hydraulic cylinder and second hydraulic cylinder close to revolution pedestal is coaxial, and the extension end of the piston rod of first hydraulic cylinder and second hydraulic cylinder is rotatably connected to forming wheel.Compared with prior art, the free swan neck system of multi-point forming of the invention is compact-sized, adaptable, it can be achieved that 3 D auto bend pipe, forming quality is high, and forming efficiency is high.)

1. a kind of free swan neck system of multi-point forming characterized by comprising

Support construction；

Rotational structure, the rotational structure include reversing frame, and the reversing frame has first through hole, and the reversing frame passes through described Support construction is simultaneously rotatablely connected with the support construction；

Distressed structure, the distressed structure include leading truck, multiple first hydraulic cylinders being parallel to each other and a second hydraulic cylinder, The leading truck is fixedly linked with the reversing frame, and the cylinder body of the first hydraulic cylinder and the second hydraulic cylinder is both secured to institute It states on leading truck and the telescopic end of piston rod is towards the leading truck inside, the first hydraulic cylinder, the second hydraulic cylinder It is coaxial close to the first hydraulic cylinder of the revolution pedestal and the second hydraulic cylinder with the axis co-planar of the reversing frame, The extension end of the piston rod of the first hydraulic cylinder and the second hydraulic cylinder is rotatably connected to forming wheel.

2. the free swan neck system of multi-point forming according to claim 1, which is characterized in that the support construction includes machine Body, top cover, bearing and the first positioning shaft sleeve, the body are equipped with the second through-hole, and two bearings are fixed on described second Both ends on the inside of through-hole, first positioning shaft sleeve are located between two bearings, and two top covers are located at two institutes It states the outside of bearing and is fixed on the body, the body, the top cover, the bearing and first positioning shaft sleeve are equal On the outside of the reversing frame.

3. the free swan neck system of multi-point forming according to claim 2, which is characterized in that the rotational structure further includes tooth Shape wheel, the toothed wheel are fixed on one end on the reversing frame far from the leading truck.

4. the free swan neck system of multi-point forming according to claim 3, which is characterized in that the rotational structure further includes set The second positioning shaft sleeve on the outside of the reversing frame, second positioning shaft sleeve are located at the toothed wheel and close to the tooth forms Between the bearing of wheel.

5. the free swan neck system of multi-point forming according to claim 1, which is characterized in that the leading truck includes first solid Fixed board, the second fixed plate, the first strut and the second strut, the reversing frame have flange knot close to one end of the leading truck Structure, first fixed plate are fixedly connected with the flange arrangement, and first fixed plate is equipped with same with the first through hole The pilot hole of axis, second fixed plate are mutually perpendicular to and are fixedly linked with first fixed plate, two first struts It is perpendicularly fixed in second fixed plate, first strut passes through second strut and the first fixed plate stationary phase Even.

6. the free swan neck system of multi-point forming according to claim 5, which is characterized in that the first hydraulic cylinder is three And three hole cylinder bodies of an integral type are shared, three hole cylinder body is fixed in second fixed plate, the second hydraulic cylinder Cylinder body be single hole cylinder body, three hole cylinder body and the single hole cylinder body all have third through-hole, the piston portion of the piston rod It is set in the third through-hole, the bar portion of the piston rod stretches out the one end of the third through-hole inwardly, the third through-hole One end outwardly is fixed with cylinder plug plug, and the cylinder plug plug is equipped with oilhole, shape between the cylinder plug plug and the piston At oil pocket, the inner wall of the third through-hole is equipped with ring projection, and the bar portion outer sheath is equipped with spring, and the spring is inwardly One end offset with the protrusion, the one end of the spring outwardly offsets with the piston, the third through-hole inwardly one End is fixed with seal cover board, and the bar portion passes through the seal cover board.

7. the free swan neck system of multi-point forming according to claim 6, which is characterized in that the one end of the bar portion inwardly is solid Surely there is crossover sub, the forming wheel is rotatablely connected with the crossover sub.

8. the free swan neck system of multi-point forming according to claim 7, which is characterized in that the axis of the forming wheel and institute The end face for stating flange arrangement is parallel, and the radius of curvature of the inner concave of the forming wheel is equal to the radius of tubing.

Technical field

The present invention relates to swan neck system technical fields, more particularly to a kind of free swan neck system of multi-point forming.

Background technique

Fitting structure has many advantages, such as lightweight, high tenacity, in recent years, with fields such as aerospace, auto industrys Development, bending pipe fitting are also more and more as the application of conduit and structural member.The flexible poor, production of traditional pipe fitting curved super-long structure Low efficiency, forming capacity are poor, cannot fully meet the manufacture demand of new product.

Currently, according to the difference of bending process method, press-bending can be divided into, curved, stretch bending is pushed away, go for a stroll and roll bending.Pipe fitting pressure Bending process is simple, the mass production of the pipe fitting suitable for only one plain bending, but curved straight joining place pressure often occurs Flat problem, bending quality is not high, and bending angle is usually no more than 120 °.Pipe fitting pushes away o ing technology, be it is a kind of by A kind of pipe fitting bending techniques that particular manufacturing craft is completed, although it is simpler to push away bending mould structure, processing difficulties, and it is flexible Difference, price are high.Pipe fitting stretch bending process is to lean against pipe fitting on punch-pin, the process requirement special equipment, and the technique is usually used in pair The processing of the not high heavy wall pipe of quality requirement.

Summary of the invention

The object of the present invention is to provide a kind of free swan neck systems of multi-point forming, to realize the real-time of bending pipes radius Variation reduces complicated die sinking process, realizes the space bent pipe bending forming of the Various Complexes configurations such as helically bent, and Improve the quality of tube bending forming.

To achieve the above object, the present invention provides following schemes:

The invention discloses a kind of free swan neck systems of multi-point forming, comprising:

Support construction；

Rotational structure, the rotational structure include reversing frame, and the reversing frame has first through hole, and the reversing frame passes through The support construction is simultaneously rotatablely connected with the support construction；

Distressed structure, the distressed structure include leading truck, multiple first hydraulic cylinders being parallel to each other and second liquid Cylinder pressure, the leading truck are fixedly linked with the reversing frame, and the cylinder body of the first hydraulic cylinder and the second hydraulic cylinder is solid Due on the leading truck and the telescopic end of piston rod is towards on the inside of the leading truck, the first hydraulic cylinder, described second The axis co-planar of hydraulic cylinder and the reversing frame, close to the first hydraulic cylinder and the second hydraulic cylinder of the revolution pedestal Coaxially, the extension end of the piston rod of the first hydraulic cylinder and the second hydraulic cylinder is rotatably connected to forming wheel.

Preferably, the support construction includes body, top cover, bearing and the first positioning shaft sleeve, and the body is equipped with the Two through-holes, two bearings are fixed on both ends on the inside of second through-hole, and first positioning shaft sleeve is located at two axis Between holding, two top covers are located at the outside of two bearings and are fixed on the body, the body, described Top cover, the bearing and first positioning shaft sleeve are respectively positioned on the outside of the reversing frame.

Preferably, the rotational structure further includes toothed wheel, and the toothed wheel is fixed on the reversing frame far from described One end of leading truck.

Preferably, the rotational structure further includes the second positioning shaft sleeve being sheathed on the outside of the reversing frame, and described second Positioning shaft sleeve is located at the toothed wheel and between the bearing of the toothed wheel.

Preferably, the leading truck include the first fixed plate, the second fixed plate, the first strut and the second strut, described time Pivoted frame has flange arrangement close to one end of the leading truck, and first fixed plate is fixedly connected with the flange arrangement, institute The first fixed plate is stated equipped with the pilot hole coaxial with the first through hole, second fixed plate and the first fixed plate phase Mutually vertical and be fixedly linked, two first struts are perpendicularly fixed in second fixed plate, and first strut passes through Second strut is fixedly linked with first fixed plate.

Preferably, the first hydraulic cylinder is three and shares three hole cylinder bodies of an integral type, and three hole cylinder body is solid Due in second fixed plate, the cylinder body of the second hydraulic cylinder is single hole cylinder body, three hole cylinder body and the single hole cylinder Body all has third through-hole, and the piston portion of the piston rod is set in the third through-hole, and the bar portion of the piston rod is stretched out The one end of the third through-hole inwardly, the one end of the third through-hole outwardly are fixed with cylinder plug plug, set on the cylinder plug plug There is oilhole, forms oil pocket between the cylinder plug plug and the piston, the inner wall of the third through-hole is equipped with ring projection, The bar portion outer sheath is equipped with spring, and the one end of the spring inwardly offsets with the protrusion, the one end of the spring outwardly It offsets with the piston, the one end of the third through-hole inwardly is fixed with seal cover board, and the bar portion passes through the seal cover board.

Preferably, the one end of the bar portion inwardly is fixed with crossover sub, and the forming wheel is rotated with the crossover sub Connection.

Preferably, the axis of the forming wheel is parallel with the end face of the flange arrangement, the inner concave of the forming wheel Radius of curvature is equal to the radius of tubing.

The present invention achieves following technical effect compared with the existing technology:

The free swan neck system of multi-point forming of the invention is compact-sized, adaptable, it can be achieved that 3 D auto bend pipe, forming Quality is high, and forming efficiency is high.

Detailed description of the invention

It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings Obtain other attached drawings.

Fig. 1 is the multi-point formation apparatus sectional view of the free bend pipe of the present embodiment；

Fig. 2 is the multi-point formation apparatus axonometric drawing of the free bend pipe of the present embodiment；

Fig. 3 is the multi-point formation apparatus forming wheel and crossover sub front view of the free bend pipe of the present embodiment；

Fig. 4 is the multi-point formation apparatus forming wheel and crossover sub axonometric drawing of the free bend pipe of the present embodiment；

Description of symbols: 1 three hole cylinder bodies；2 cylinder plug plugs；3 piston rods；4 springs；5 leading trucks；6 reversing frames；7 top covers； 8 bodies；9 first positioning shaft sleeves；10 bearings；11 toothed wheels；12 feeding push rods；13 tubing；14 forming wheels；15 crossover subs；16 Guide sleeve；17 single hole cylinder bodies.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

The object of the present invention is to provide a kind of free swan neck systems of multi-point forming, to realize the real-time of bending pipes radius Variation reduces complicated die sinking process, realizes the space bent pipe bending forming of the Various Complexes configurations such as helically bent, and Improve the quality of tube bending forming.

In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real Applying mode, the present invention is described in further detail.

As shown in Figs 1-4, the present embodiment provides a kind of free swan neck systems of multi-point forming, including support construction, rotation knot Structure and distressed structure.

Wherein, rotational structure includes reversing frame 6, and reversing frame 6 has a first through hole, reversing frame 6 pass through support construction and with Support construction rotation connection；For distressed structure to make 13 bending deformation of tubing, distressed structure includes leading truck 5, multiple mutually flat Capable first hydraulic cylinder and a second hydraulic cylinder, leading truck 5 are fixedly linked with reversing frame 6, drive and lead when reversing frame 6 rotates It is rotated to frame 5；The cylinder body of first hydraulic cylinder and second hydraulic cylinder is both secured on leading truck 5 and the equal court of telescopic end of piston rod 3 To 5 inside of leading truck, the axis co-planar of first hydraulic cylinder, second hydraulic cylinder and reversing frame 6, first close to revolution pedestal is hydraulic Cylinder is coaxial with second hydraulic cylinder, and the extension end of the piston rod 3 of first hydraulic cylinder and second hydraulic cylinder is rotatably connected to forming wheel 14, make tubing 13 towards some direction bending deformation by 14 extruding tubing 13 of forming wheel.

Tubing 13 when in use, is passed through by feeding push rod 12 and is turned round by the free swan neck system of the multi-point forming of the present embodiment The first through hole of frame 6 is pushed into leading truck 5, the forming wheel 14 in the first hydraulic cylinder and second hydraulic cylinder of revolution pedestal It play the guiding role to tubing 13, tubing 13 continues to be fed at the forming wheel 14 of next first hydraulic cylinder, according to tubing 13 Bending curvature control the position of the forming wheel 14, tubing 13 completes bending machining in the process of feeding；It is next curved in progress When the processing of tune, 14 position of forming wheel in the first hydraulic cylinder and second hydraulic cylinder of revolution pedestal is remained unchanged, Remaining first hydraulic cylinder resets, and according to the requirement of 13 design size of tubing, reversing frame 6 and leading truck 5 is made not to rotate or rotate centainly Angle, 14 position of forming wheel in remaining above-mentioned first hydraulic cylinder adjusts again, one in the forming of entire complex pipes This movement is directly repeated, until completing product.

In the present embodiment, support construction includes body 8, top cover 7, bearing 10 and the first positioning shaft sleeve 9.Body 8 is equipped with Second through-hole, two bearings 10 are fixed on both ends on the inside of the second through-hole, and the first positioning shaft sleeve 9 is located between two bearings 10, and two A top cover 7 is located at the outside of two bearings 10 and is fixed on body 8, body 8, top cover 7, bearing 10 and the first locating shaft Set 9 is respectively positioned on 6 outside of reversing frame.It is more stable to the support of rotational structure by the way that dual bearing structure is arranged, avoid it from toppling.

For the ease of driving rotational structure rotation, the rotational structure of the present embodiment further includes toothed wheel 11, and toothed wheel 11 is solid Due to one end of leading truck 5 separate on reversing frame 6.Those skilled in the art can also be used other way driving reversing frame 6 and rotate, Such as the direct-connected reversing frame 6 of decelerating motor drives etc..

For the ease of the relative axial position of control toothed wheel 11 and the bearing 10 being adjacent to, the rotation knot of the present embodiment Structure further includes the second positioning shaft sleeve for being sheathed on 6 outside of reversing frame, and the second positioning shaft sleeve is located at toothed wheel 11 and close to toothed wheel Between 11 bearing 10.

There are many forms for the specific structure of leading truck 5, as long as first hydraulic cylinder and second hydraulic cylinder can be installed.This In embodiment, leading truck 5 includes the first fixed plate, the second fixed plate, the first strut and the second strut, and reversing frame 6 is close to guiding One end of frame 5 has flange arrangement, and the first fixed plate is fixedly connected with flange arrangement, and the first fixed plate is equipped with and first through hole Coaxial pilot hole, the second fixed plate are mutually perpendicular to and are fixedly linked with the first fixed plate, and two the first struts are perpendicularly fixed at In second fixed plate, the first strut is fixedly linked by the second strut and the first fixed plate.

For the ease of bending part tubing 13 is sent out leading truck 5, and prevent the larger rebound after bending of tubing 13, this reality The first hydraulic cylinder for applying example is three and shares three hole cylinder bodies 1 of an integral type, and three hole cylinder bodies 1 are fixed on the second fixed plate On, the cylinder body of second hydraulic cylinder is single hole cylinder body 17 (position D in Fig. 1).Tubing 13 is by first first hydraulic cylinder (in Fig. 1 Position C) on the guiding of forming wheel 14 and the shaping of second first hydraulic cylinder (position B in Fig. 1) after, by third the first liquid The forming wheel 14 of cylinder pressure (position A in Fig. 1) sends out leading truck 5.Three hole cylinder bodies 1 all have third through-hole with single hole cylinder body 17, living The piston portion of stopper rod 3 is set in third through-hole.The bar portion of piston rod 3 stretches out the one end of third through-hole inwardly, third through-hole court Outer one end is fixed with cylinder plug plug 2, and cylinder plug plug 2 is equipped with oilhole, forms oil pocket between cylinder plug plug 2 and piston.Third The inner wall of through-hole is equipped with ring projection, and bar portion outer sheath is equipped with spring 4, and the one end of spring 4 inwardly offsets with protrusion, bullet The one end of spring 4 outwardly offsets with piston.The one end of third through-hole inwardly is fixed with guide sleeve 16, and bar portion passes through guide sleeve 16.It is logical Oil injection structure is crossed into oil pocket after oiling, oil pocket internal pressure increases, and driving piston rod 3 and forming take turns 14 to 5 inside of leading truck Movement；After reducing fill cup hydraulic the oil liquid in oil pocket being made to outflow, piston rod 3 is under the action of spring 4 to transporting on the outside of leading truck 5 It is dynamic, and drive forming wheel 14 to 5 movement outside of leading truck.

There are many rotation connection modes of the bar portion of forming wheel 14 and piston rod 3, the one end of bar portion inwardly in the present embodiment It is fixed with crossover sub 15, forming wheel 14 is rotatablely connected with crossover sub 15, is realized so that crossover sub 15 is intermediate structure The quick-replaceable of forming wheel 14, those skilled in the art can also be such that forming wheel 14 is directly rotatablely connected with the bar portion of piston rod 3.

For the processing quality for improving tubing 13, the tubing 13 of different tube diameters is processed, it would be desirable to replacement and 13 radius of tubing The forming wheel 14 to match.The axis of forming wheel 14 is parallel with the end face of flange arrangement, the curvature half of the inner concave of forming wheel 14 Diameter is equal to the radius of tubing 13.

Apply that a specific example illustrates the principle and implementation of the invention in this specification, above embodiments Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion in this specification Appearance should not be construed as limiting the invention.