CN110116155A - A kind of distortion pipe forming apparatus - Google Patents
A kind of distortion pipe forming apparatus Download PDFInfo
- Publication number
- CN110116155A CN110116155A CN201910398326.7A CN201910398326A CN110116155A CN 110116155 A CN110116155 A CN 110116155A CN 201910398326 A CN201910398326 A CN 201910398326A CN 110116155 A CN110116155 A CN 110116155A
- Authority
- CN
- China
- Prior art keywords
- lower die
- center
- pole
- forming apparatus
- upper mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/08—Bending tubes using mandrels or the like in press brakes or between rams and anvils or abutments; Pliers with forming dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a kind of distortion pipe forming apparatus, lower die is equipped with the first forming tank, and upper mold is equipped with the second forming tank, under upper die and lower die molding state, first forming tank and the second forming tank structure forming cavity, multiple core balls are connected in series by the flexible connecting member；Curved position is needed to be placed in the first forming tank straight tube blank to be bent, multiple core balls are placed into the inside that straight tube blank needs curved position, subsequent upper die and lower die molding, upper die and lower die apply pressure to straight tube blank, so that straight tube blank is bent, final straight tube blank is located at pipeline section in forming cavity and forms cavity wall against obtaining required twisted tube；The plastic radius of going for a stroll of distortion pipe forming apparatus proposed by the present invention is less than the twisted tube of caliber, it can avoid the defect (corrugation and cracking) being easy to appear around bending process, and thickness as outside difference is smaller in knee, can form the straight-arm between two cambers shown in Fig. 3.
Description
Technical field
The present invention relates to technical field of mold more particularly to a kind of distortion pipe forming apparatus.
Background technique
With the development of the automobile industry, more and more auto parts and components require lightweight, hollow section of various shapes
Pipe part largely applies to automobile chassis, body structure, end tube, tailpipe etc., these pipe parts are all not straight
Pipe, most of parts are all the pipe fittings of the twisted state with certain angle or tube hub line is distortion pipe fitting, need to pass through
Twisted tube does middle transition product and forms.
Prior art molding twisted tube is to refer to around bending process by realizing around bending process and use one section of hollow straight pipe
Pipe is obtained around a certain center line, along the circular motion of a certain radii fixus around bending mould
To the method for one section of twisted tube of regular shape.
Referring to Fig.1-2, mould structure of going for a stroll is as follows: plug A is fixed on Full-automatic tube bending machine, and multiple core ball B are connected to
On plug A, original state clamping C is in die opening state, as shown in Figure 1, by one section of circular hollow straight tube blank D cover plug A with
On multiple core ball B, wherein there is the gap of about 0.5mm between pipe internal diameter and plug A, between core ball B between be divided into generally
10mm, then clamping C is closed, as shown in Fig. 2, clamping C and wheel model E start to turn an angle around wheel model E centre bore, is obtained
Required twisted tube.
Above structure has the disadvantage, first is that bending radius is restricted, bending radius generally cannot be below pipe diameter, otherwise
It can not form, it may appear that cracking ridging defect；Second is that being thinned larger on the outside of twisted tube circular arc, medial thickness is larger, and product is easy
Damage.
There are two knee, the straight-arm between two cambers is difficult to form bending pipe tool described in Fig. 3, and is easy at straight-arm
Cause ridging defect.
Summary of the invention
To solve technical problem present in background technique, the present invention proposes a kind of distortion pipe forming apparatus.
A kind of distortion pipe forming apparatus proposed by the present invention, including lower die, upper mold, multiple core balls and flexible connecting member；
Lower die is equipped with the first forming tank, and upper mold is equipped with the second forming tank, the first one-tenth described under upper die and lower die molding state
Type groove and the second forming tank structure forming cavity, multiple core balls are connected in series by the flexible connecting member.
It preferably, further include pedestal and center-pole, on the base, center-pole is slidably mounted on pedestal for lower die and upper mold installation
On, flexible connecting member one end is connect with center-pole one end, and in center-pole moving process, multiple core balls have intracavitary positioned at the type
Position.
Preferably, further include plug, plug is located between center-pole and multiple core balls, plug both ends respectively with center-pole and
Flexible connecting member connection.
It preferably, further include the first actuator, the installation of the first actuator is on the base for driving center-pole mobile.
It preferably, further include the second actuator, the installation of the second actuator is on the base for driving upper mold mobile to realize
Die sinking/mould assembling action of upper die and lower die.
Preferably, center-pole is equipped with fixed part, and fixed part is for cooperating in the twisted tube to stablize the distortion
Pipe.
Preferably, core ball surface has the first plane and the second plane that are parallel to each other, first plane and described the
Series connection direction of two planes perpendicular to multiple core balls.
In the present invention, straight tube blank to be bent is needed curved position to be placed on by the distortion pipe forming apparatus proposed
In first forming tank, multiple core balls are placed into the inside that straight tube blank needs curved position, and subsequent upper die and lower die mold, on
Mould and lower die apply pressure to straight tube blank, so that straight tube blank is bent, final straight tube blank is located at pipeline section and forming cavity in forming cavity
Inner wall is against obtaining required twisted tube；The plastic radius of going for a stroll of distortion pipe forming apparatus proposed by the present invention is less than caliber
Twisted tube can avoid the defect (corrugation and cracking) being easy to appear around bending process, and thickness as outside difference is smaller in knee,
The straight-arm between two cambers shown in figure can be formed.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pipe bending mechanism in the prior art；
Fig. 2 is the structural schematic diagram of pipe bending mechanism in the prior art；
Fig. 3 is a kind of structural schematic diagram of twisted tube；
Fig. 4 is a kind of structural schematic diagram for distorting pipe forming apparatus proposed by the present invention；
Fig. 5 is the structural schematic diagram of prior art core ball；
Fig. 6 is a kind of structural schematic diagram for distorting pipe forming apparatus core ball proposed by the present invention.
Specific embodiment
As shown in figures 1 to 6, Fig. 1 is the structural schematic diagram of pipe bending mechanism in the prior art, and Fig. 2 is bending machine in the prior art
The structural schematic diagram of structure, Fig. 3 are a kind of structural schematic diagram of twisted tube, and Fig. 4 is a kind of twisted tube molding dress proposed by the present invention
The structural schematic diagram set, Fig. 5 are the structural schematic diagram of prior art core ball, Fig. 6 be a kind of twisted tube proposed by the present invention at
The structural schematic diagram of type device core ball.
Referring to Fig. 4, a kind of distortion pipe forming apparatus proposed by the present invention, including lower die 1, upper mold 2, multiple core balls 3 and soft
Property connector, flexible connecting member can be wirerope；
Lower die 1 is equipped with the first forming tank, and upper mold 2 is equipped with the second forming tank, under 1 molding state of upper mold 2 and lower die, described the
The section of one forming tank and the second forming tank structure forming cavity, the forming cavity is circle, and multiple core balls 3 pass through the flexibility
Connector is connected in series.
Straight tube blank to be bent is needed curved position to be placed on first by the distortion pipe forming apparatus that the present embodiment proposes
In forming tank, multiple core balls 3 are placed into the inside that straight tube blank needs bending position, and subsequent upper mold 2, lower die 1 mold, upper mold 2
Pressure is applied to straight tube blank with lower die 1, so that straight tube blank is bent, final straight tube blank is located in the pipeline section and forming cavity in forming cavity
Wall is against obtaining required twisted tube.
By taking the twisted tube in Fig. 3 as an example, which is 60mm, and crooked position radius is 50mm, two bendings it
Between spacing distance 10mm, if using the bending machine at prior art center, it is straight between two knees after bending twice
Arm is difficult to form, because the inside in two knees is easy corrugation in forming process, the fold on the inside of knee can be to straight-arm
Duan Yanshen, and then straight arm section corrugation is caused to cause defect, and bending part medial thickness, outside is thinning, causes to distort tube thickness
Unevenly, twisted tube is easily damaged in the use process in later period；And the molding machine in the present embodiment is used, straight tube blank is not done
It goes for a stroll movement, the side thickness inside and outside bending process can be improved and differ larger problem, and the straight pipe between two bendings will not
Corrugation；Plastic bending radius is less than the twisted tube of caliber.
It is core ball B in the prior art referring to Fig. 5, realizes around bending process around wheel model E center line movement, core ball B
Also it having to around center line movement, the interval between such adjacent core ball B will be relatively large, it will result in this way, if
Bending radius is too small, and straight tube blank inside material can be gathered in the gap between adjacent core ball B and cause to wrinkle, meeting on the outside of pipe
Because the angle opened between core ball B is larger, the poor material of some processabilities just will appear fracture destability.
Referring to Fig. 6, in the present embodiment, 3 surface of core ball has the first plane and the second plane being parallel to each other, and described first
Plane and second plane are perpendicular to the series connection direction of multiple core balls 3, and arbitrary neighborhood core ball 3 can be opposite in forming process
Mobile, moving direction is parallel to the first plane, and core ball 3 is not gone for a stroll movement, reached using the dislocation of core ball 3 prevent from wrinkling,
The purpose of cracking, obtained final product quality are more preferable.
Since core ball 3 is gone for a stroll movement, so the connection of core ball 3 is without the concern for evacuation when going for a stroll, therefore can easily at
The shorter product even without straight-arm of straight-arm between two bendings of type.
It specifically, further include pedestal 4 and center-pole 5, lower die 1 and upper mold 2 are mounted on pedestal 4, and center-pole 5 is slidably installed
On pedestal 4, flexible connecting member one end is connect with 5 one end of center-pole, and in 5 moving process of center-pole, multiple core balls 3, which have, to be located at
The intracavitary position of the type, after straight tube blank is placed in forming cavity, it is to be bent into straight tube that center-pole 5 pushes multiple core balls 3
Position, straight tube molding after, center-pole 5 back twitches multiple core balls 3, also plays the work of shaping during drawing back to product
With.
Further, further include plug 6, plug 6 is located between center-pole 5 and multiple core balls 3,6 both ends of plug respectively with
Center-pole 5 is connected with flexible connecting member, and when upper mold 2 and lower die 1 squeeze straight tube, plug 6 is located on the outside of forming cavity and close to molding
Chamber, plug 6 can prevent the position for not needing to be bent from being bent by upper mold 2 and lower die 1.
It further include the first actuator, the first actuator is mounted on pedestal 4 for driving center-pole 5 mobile, can between driving
To be hydraulic cylinder, center-pole 5 is mounted on the piston rod of the hydraulic cylinder.
It further include the second actuator, the second actuator is mounted on pedestal 4 for driving upper mold 2 mobile to realize upper mold 2
With die sinking/mould assembling action of lower die 1, the second actuator can be hydraulic cylinder.
Center-pole 5 is equipped with fixed part 7, and fixed part 7 is for cooperating in the twisted tube and with center-pole 5 far from plug
6 one end is against to stablize the twisted tube.
Molding machine of the invention is simpler than bending machine, is easily installed and operates, and bending machine is than mould structure of the invention
Much more complex, it is more to be mainly reflected in part, and the present invention only has the tool clamping of upper and lower mould 1, for machining, processing one
Pair is 5 times or more of the time of mold needed for the present invention around the working hour of machining center needed for bending mould.
Bending machine, which is equipped with one, to provide pressing force along the device that the briquetting of wheel model E center rotating, briquetting connect below,
Need chucking power to be adjusted to suitable size in bending process, chucking power is excessive to be easy to cause material outside to crack, chucking power compared with
It is small that inside is be easy to cause to wrinkle, it needs repeatedly to debug, the principle of the present invention is that the hydraulic device of direct upper and lower mould 1 large-tonnage can
Upper and lower mould 1 is compressed with four-column hydraulic press, keeps molding state, until 6 ball device of plug twitches completion backward.Mould of the invention
Have easy to operate simple, the debugging mold time is shorter.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of distortion pipe forming apparatus, which is characterized in that including lower die (1), upper mold (2), multiple core balls (3) and flexible connection
Part；
Lower die (1) is equipped with the first forming tank, and upper mold (2) is equipped with the second forming tank, under upper mold (2) and lower die (1) molding state, institute
The first forming tank and the second forming tank structure forming cavity are stated, multiple core balls (3) are connected in series by the flexible connecting member.
2. distortion pipe forming apparatus according to claim 1, which is characterized in that it further include pedestal (4) and center-pole (5),
Lower die (1) and upper mold (2) are mounted on pedestal (4), and center-pole (5) is slidably mounted on pedestal (4), the flexible connecting member one
End is connect with center-pole (5) one end, and in center-pole (5) moving process, multiple core balls (3), which have, is located at the intracavitary position of the type
It sets.
3. distortion pipe forming apparatus according to claim 2, which is characterized in that further include plug (6), plug (6) is located at
Between center-pole (5) and multiple core balls (3), plug (6) both ends are connect with center-pole (5) and the flexible connecting member respectively.
4. distortion pipe forming apparatus according to claim 2, which is characterized in that it further include the first actuator, described first
Actuator is mounted on pedestal (4) for driving center-pole (5) mobile.
5. distortion pipe forming apparatus according to claim 2, which is characterized in that it further include the second actuator, described second
Actuator is mounted on pedestal (4) for driving upper mold (2) mobile die sinking/molding to realize upper mold (2) and lower die (1).
6. distortion pipe forming apparatus according to claim 2, which is characterized in that center-pole (5) is equipped with fixed part (7),
Fixed part (7) is for cooperating in the twisted tube to stablize the twisted tube.
7. distortion pipe forming apparatus according to claim 1, which is characterized in that core ball (3) surface, which has, to be parallel to each other
The series connection direction of first plane and the second plane, first plane and second plane perpendicular to multiple core balls (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398326.7A CN110116155A (en) | 2019-05-14 | 2019-05-14 | A kind of distortion pipe forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398326.7A CN110116155A (en) | 2019-05-14 | 2019-05-14 | A kind of distortion pipe forming apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110116155A true CN110116155A (en) | 2019-08-13 |
Family
ID=67522373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910398326.7A Pending CN110116155A (en) | 2019-05-14 | 2019-05-14 | A kind of distortion pipe forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110116155A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289574A (en) * | 2022-01-05 | 2022-04-08 | 保隆(安徽)汽车配件有限公司 | Internal low-pressure bending forming device and method for double-layer twisted pipe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19749369A1 (en) * | 1997-11-07 | 1999-05-12 | Volkswagen Ag | Device for bending tube |
| EP1488866A2 (en) * | 2003-06-19 | 2004-12-22 | Kabushiki Kaisha Opton | Mandrel for bending |
| CN201183085Y (en) * | 2008-04-22 | 2009-01-21 | 林伟明 | Core rod apparatus for pipe bender |
| CN202021249U (en) * | 2010-12-19 | 2011-11-02 | 富奥汽车零部件股份有限公司 | Hydraulically-driven core-pulling punch-forming device for pipes |
| CN102974667A (en) * | 2012-10-16 | 2013-03-20 | 江苏华阳金属管件有限公司 | Elbow rough machining device |
-
2019
- 2019-05-14 CN CN201910398326.7A patent/CN110116155A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19749369A1 (en) * | 1997-11-07 | 1999-05-12 | Volkswagen Ag | Device for bending tube |
| EP1488866A2 (en) * | 2003-06-19 | 2004-12-22 | Kabushiki Kaisha Opton | Mandrel for bending |
| CN201183085Y (en) * | 2008-04-22 | 2009-01-21 | 林伟明 | Core rod apparatus for pipe bender |
| CN202021249U (en) * | 2010-12-19 | 2011-11-02 | 富奥汽车零部件股份有限公司 | Hydraulically-driven core-pulling punch-forming device for pipes |
| CN102974667A (en) * | 2012-10-16 | 2013-03-20 | 江苏华阳金属管件有限公司 | Elbow rough machining device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114289574A (en) * | 2022-01-05 | 2022-04-08 | 保隆(安徽)汽车配件有限公司 | Internal low-pressure bending forming device and method for double-layer twisted pipe |
| CN114289574B (en) * | 2022-01-05 | 2023-05-02 | 保隆(安徽)汽车配件有限公司 | Internal low-pressure winding forming device and method for double-layer twisted pipe |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190813 |
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| RJ01 | Rejection of invention patent application after publication |