CN109702090A - Inner supporting type bending ram mould and its prepare pipe fitting process - Google Patents
Inner supporting type bending ram mould and its prepare pipe fitting process Download PDFInfo
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- CN109702090A CN109702090A CN201910177499.6A CN201910177499A CN109702090A CN 109702090 A CN109702090 A CN 109702090A CN 201910177499 A CN201910177499 A CN 201910177499A CN 109702090 A CN109702090 A CN 109702090A
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- central spindle
- fixed central
- bending
- pipe fitting
- plate
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Abstract
The invention belongs to mold design and field shaping technique, it is related to a kind of inner supporting type bending ram mould and its prepares pipe fitting process, lower template is connect with mo(u)ld bottom half cavity plate by material returned screw, is supported with holddown spring therebetween, and mo(u)ld bottom half cavity plate does the reciprocating motion of vertical direction；Fixed central spindle is connected on fixed central spindle's support by fixed central spindle's locating shaft, and up-and-down movement is done in the strip hole on fixed central spindle's support by fixed central spindle；Bending plate is connected on bending board support by bending plate locating shaft, and bending plate can be rotated around bending plate locating shaft；Reset spring is arranged between restoring board and lower template.Process, comprising the following steps: 1) punching, tubulation；2) it cuts, rush gap and deburring；3) in pipe fitting insertion fixed central spindle；4) by mobile mandrel insertion tube part, the top of mobile mandrel holds out against fixed central spindle；5) molding, which is bent, completes.The present invention can reduce the loss of bottleneck process bring beat, greatly improve the utilization rate of lathe.
Description
Technical field
The invention belongs to mold design and field shaping technique, it is related to a kind of inner supporting type bending ram mould and its preparation pipe
Part process is suitable for the processing of automobile exhaust pipe fitting and punching press industry.
Background technique
The processing technology of the pipe fitting prior art is: tubulation-hydraulic sizing-cleaning-of bend pipe-Pipe Cutting-deburring-is fixed
Diameter -- rotation punching-punching slit-sizing 1- sizing 2；Difficulty of processing is that porose area will deform when bend pipe, not meet the figure of client
Paper requirement.So will punching after first bend pipe, however pipe fitting needs to be inserted on matrix core shaft when punching, and matrix core shaft is curved
In the deformed region of pipe, pipe fitting is caused to cannot be introduced into matrix core shaft, needed by the hydraulic die shaping of Tube Bending Deformation area, after being rounded
Matrix core shaft punching again can be inserted.Increase manufacturing procedure, machining period high cost increases, and hydraulic sizing process and rotation
Punching operation low efficiency, it is bottleneck process that mold is easy to damage, which to be belonged to, and mold expense is high.
Summary of the invention
The technical problem to be solved by the present invention is to compress existing process, the production efficiency of each process is improved, rejects bottle
Neck process and provide a kind of inner supporting type bending ram mould and process.
In order to solve the above technical problems, the present invention adopts the following technical scheme that realization, it is described with reference to the drawings as follows:
A kind of inner supporting type bending ram mould, is made of upper die and lower die, and the lower die includes lower template 5, mo(u)ld bottom half cavity plate
6, fixed central spindle 7, fixed central spindle's support 8, fixed central spindle's locating shaft 9, bending plate 10, bending board support 11, bending plate locating shaft
12, restoring board 13, reset spring 14, holddown spring 15, mobile mandrel 16 and material returned screw 18；
The lower template 5 is connect with mo(u)ld bottom half cavity plate 6 by material returned screw 18, with compression between lower template 5 and mo(u)ld bottom half cavity plate 6
Spring 15 supports, 15 sets of holddown spring on material returned screw 18, mo(u)ld bottom half cavity plate 6 does the reciprocating motion of vertical direction；
The fixed central spindle 7 is connected on fixed central spindle's support 8 by fixed central spindle's locating shaft 9, and fixed central spindle 7 is in fixation
Up-and-down movement is done in strip hole on mandrel support 8；
The bending plate 10 is connected on bending board support 11 by bending plate locating shaft 12, and bending plate 10 can be around folding
Bent plate locating shaft 12 rotates；
The reset spring 14 is arranged between restoring board 13 and lower template 5, and restoring board 13 is arranged under bending plate 10
Side；
The mobile mandrel 16 is inserted into pipe fitting, and the top of the mobile mandrel 16 holds out against fixed central spindle 7.
The holddown spring 15 is arranged four, and material returned screw 18 is arranged four.
A kind of process preparing pipe fitting with inner supporting type bending ram mould, comprising the following specific steps
1) billot feeding plate punching operation is punched out, the billot for punching hole is sent into tubulation process and carries out tubulation；
2) the multiple length pipe of tubulation is subjected to the cutting of single-piece length, then carries out rushing gap process and deburring；
3) pipe fitting for punching gap is inserted into the fixed central spindle 7 of inner supporting type bending ram mould, with gap position assurance
Direction and length；
4) mobile mandrel 16 is inserted into pipe fitting, the top of mobile mandrel 16 holds out against fixed central spindle 7；
5) molding bends completion and prepares pipe fitting.
Compared with prior art the beneficial effects of the present invention are:
Using this mold and process, the loss of bottleneck process bring beat can be reduced, keeps the utilization rate of lathe big
It is big to improve.Originally per tour produces 235, and new die per tour produces 520.The production capacity of expensive CNC tube bending machine is discharged
Out, bigger commercial interest is obtained.
Detailed description of the invention
Fig. 1 is inner supporting type bending ram mould overall schematic of the present invention；
Fig. 2 is inner supporting type bending ram mould lower die cross-sectional view of the present invention；
Fig. 3 is inner supporting type bending ram mould part of the present invention shaft side figure；
Fig. 4 is inner supporting type bending ram mould bending axonometric drawing of the present invention；
Fig. 5 is inner supporting type bending ram mould lower template of the present invention and mo(u)ld bottom half cavity plate annexation figure；
Fig. 6 is inner supporting type bending ram mould fixed central spindle of the present invention and fixed central spindle's support annexation figure；
Fig. 7 is inner supporting type bending ram mould bending plate of the present invention and bending board support annexation figure；
Wherein:
1, die shank, 2, cope plate, 3, mo(u)ld top half cavity plate, 4, guide sleeve, 5, lower template, 6, mo(u)ld bottom half cavity plate, 7, fixed central spindle, 8, solid
Centering spindle's support, 9, fixed central spindle's locating shaft, 10, bending plate, 11, bending board support, 12, bending plate locating shaft, 13, reset
Plate, 14, reset spring, 15, holddown spring, 16, mobile mandrel, 17, guide post, 18, material returned screw.
Specific embodiment
It is further illustrated in conjunction with attached drawing:
Inner supporting type bending ram mould mold is divided into upper die and lower die.
Refering to fig. 1, upper mold is by die shank 1, cope plate 2, mo(u)ld top half cavity plate 3, the composition of guide sleeve 4.
Refering to fig. 1, Fig. 2, lower die is by lower template 5, mo(u)ld bottom half cavity plate 6, fixed central spindle 7, fixed central spindle's support 8, fixed central spindle
Locating shaft 9, bending plate 10, bending board support 11, bending plate locating shaft 12, restoring board 13, reset spring 14, holddown spring 15,
Mobile mandrel 16, guide post 17, material returned screw 18 form.
Refering to fig. 1, the die shank 1 of upper mold is connect with 2 upper surface of cope plate, and mo(u)ld top half cavity plate 3 is connect with 2 lower surface of cope plate,
Guide sleeve 4 and the interference fit of cope plate 2 are mounted on cope plate.
Refering to Fig. 2, Fig. 5, the material returned screw 18 of lower die passes through lower template 5 and connect with mo(u)ld bottom half cavity plate 6, in lower template 5 under
It is supported between cavity plate 6 with holddown spring 15,15 sets of holddown spring on material returned screw 18, are locked with lower template 6 and connected.Two
Two are symmetrical arranged four sets, and mo(u)ld bottom half cavity plate 6 does the reciprocating motion of vertical direction.
Refering to Fig. 3, Fig. 6, fixed central spindle 7 is connected on fixed central spindle's support 8 with fixed central spindle's locating shaft 9, fixed central spindle 7
Up-and-down movement is done in the strip hole on fixed central spindle's support 8.
Refering to Fig. 4, Fig. 7, bending plate 10 is connected on bending board support 11 with bending plate locating shaft 12, when bending plate 10 by
It when power moves down, can be rotated around bending plate locating shaft 12, be that rotary shaft carries out being rotated up to folding with bending locating shaft 12
Curved purpose, restoring board 13 moves down at this time, and reset spring 14 compresses, and the rebound of reset spring 14 is propped multiple after completing bending
Position plate 13 returns to origin-location.Reset spring 14 is arranged between restoring board 13 and lower template 5, and restoring board 13 is arranged in bending plate
10 lower section.Lower template is passed through using standard component soket head cap screw, 14 sets of reset spring are connect on screw with restoring board 13.
The innovative point of the mold is that the mo(u)ld bottom half cavity plate 6 of the mo(u)ld top half cavity plate 3 of upper mold and lower die is first clamped pipe fitting with mold clamping force,
By the spring force of holddown spring 15 make the porose area part of pipe fitting material do not slide it is indeformable, after then mold continues traveling downwardly,
Pipe fitting is bent by the rotation of bending plate 10, and the bending variable of pipe fitting all concentrates on imperforate section.Then it completes to become by sizing process
The molding at shape end.
Pipe fitting is prepared using inner supporting type bending ram mould of the present invention, the new process of use is: plate punching-system
Pipe-sawing-punching slit-punching press bend -- sizing 1.
The advantages of new process: bend pipe process, hydraulic sizing process and rotation three processes of punching operation are rejected.
A kind of inner supporting type bending ram mould prepares the process of pipe fitting, comprising the following specific steps
1) billot feeding plate punching operation is punched out, the billot for punching hole is sent into tubulation process and carries out tubulation.
2) the multiple length pipe of tubulation is subjected to the cutting of single-piece length, then carries out rushing gap process and deburring.
3) pipe fitting for punching gap is inserted into the fixed central spindle 7 of inner supporting type bending ram mould, with gap position assurance
Direction and length.
4) mobile mandrel 16 is self-existent, and no and mold has connection, so after pipe fitting is inserted into fixed central spindle 7 again
Mobile mandrel 16 is inserted into pipe fitting, the top of mobile mandrel 16 holds out against fixed central spindle 7；
5) then completion is bent in molding.
Specific process:
Pipe fitting is inserted into fixed central spindle 7, is then inserted into mobile mandrel 16, both hands start press equipment,
Mold is molded, and is completed the process when mold runs to after bottom dead center pipe fitting, and with the opening of equipment, mold is separated,
Pipe fitting is taken out, goes to subsequent processing in week.
Principle is after equipment runs down to molding point, and pipe fitting is under equipment downstream pressure, mo(u)ld top half cavity plate 3 and lower impressions
Plate 6 clamps pipe fitting under the action of holddown spring 15 makes the porose area of pipe fitting not deform.Then equipment continues traveling downwardly, bending plate
10 start to work, and pipe fitting brake forming is taken out pipe fitting, in restoring board 13 and reset spring when equipment backhaul rear mold opening
Bending plate 10 resets under the action of 14, and mo(u)ld bottom half cavity plate 6 resets under the reaction of holddown spring.
Fixed central spindle 7 is mounted on fixed central spindle's support 8, and fixed central spindle's support 8 is fixed in lower template 5 by screw.
Bending plate 10 is connected on bending board support with bending plate locating shaft 12, is revolved using bending locating shaft as rotary shaft
It is conveyed to the purpose of bending.
Pipe fitting is inserted into fixed central spindle 7 when production, then mobile mandrel 16 is inserted into, makes the front end of mobile mandrel 16 and solid
It withstands the front end of centering spindle 7.
Guide pillars and bushes is linked together by the way of interference fit respectively at lower template and cope plate.From in production
To guiding role.
Claims (3)
1. a kind of inner supporting type bending ram mould, is made of upper die and lower die, it is characterised in that: the lower die includes lower template
(5), mo(u)ld bottom half cavity plate (6), fixed central spindle (7), fixed central spindle's support (8), fixed central spindle's locating shaft (9), bending plate (10), bending
Board support (11), bending plate locating shaft (12), restoring board (13), reset spring (14), holddown spring (15), mobile mandrel (16)
With material returned screw (18)；
The lower template (5) is connect with mo(u)ld bottom half cavity plate (6) by material returned screw (18), between lower template (5) and mo(u)ld bottom half cavity plate (6)
It is supported with holddown spring (15), holddown spring (15) covers on material returned screw (18), and mo(u)ld bottom half cavity plate (6) can do vertical direction
Reciprocating motion；
The fixed central spindle (7) is connected on fixed central spindle's support (8) by fixed central spindle's locating shaft (9), and fixed central spindle (7) exists
Up-and-down movement is done in strip hole on fixed central spindle's support (8)；
The bending plate (10) is connected on bending board support (11) by bending plate locating shaft (12), and bending plate (10) can be around
Bending plate locating shaft (12) rotation；
The reset spring (14) is arranged between restoring board (13) and lower template (5), and restoring board (13) is arranged in bending plate
(10) lower section；
The mobile mandrel (16) is inserted into pipe fitting, and the top of the mobile mandrel (16) holds out against fixed central spindle (7).
2. a kind of inner supporting type bending ram mould according to claim 1, it is characterised in that:
The holddown spring (15) is arranged four, and material returned screw (18) is arranged four.
3. a kind of process that pipe fitting is prepared with inner supporting type bending ram mould described in claim 1, including in detail below
Step:
1) billot feeding plate punching operation is punched out, the billot for punching hole is sent into tubulation process and carries out tubulation；
2) the multiple length pipe of tubulation is subjected to the cutting of single-piece length, then carries out rushing gap process and deburring；
3) pipe fitting for punching gap is inserted into the fixed central spindle (7) of inner supporting type bending ram mould, with gap position assurance side
To and length；
4) mobile mandrel (16) are inserted into pipe fitting, the top of mobile mandrel (16) holds out against fixed central spindle (7)；
5) molding bends completion and prepares pipe fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177499.6A CN109702090A (en) | 2019-03-09 | 2019-03-09 | Inner supporting type bending ram mould and its prepare pipe fitting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910177499.6A CN109702090A (en) | 2019-03-09 | 2019-03-09 | Inner supporting type bending ram mould and its prepare pipe fitting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109702090A true CN109702090A (en) | 2019-05-03 |
Family
ID=66265841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910177499.6A Pending CN109702090A (en) | 2019-03-09 | 2019-03-09 | Inner supporting type bending ram mould and its prepare pipe fitting process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109702090A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110538916A (en) * | 2019-09-04 | 2019-12-06 | 长春近江汽车零部件有限公司 | Water expansion forming process for pipe fitting for automobile engine |
| CN110605331A (en) * | 2019-10-24 | 2019-12-24 | 吴玉坤 | Three-dimensional punching machine |
| CN112024723A (en) * | 2020-08-21 | 2020-12-04 | 江苏恒高电气制造有限公司 | GIL small-angle shell bending device |
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| CN106914523A (en) * | 2017-02-24 | 2017-07-04 | 巢湖学院 | A kind of machining swan neck system |
| CN107363138A (en) * | 2017-08-17 | 2017-11-21 | 燕山大学 | Elbow with straight section die forming method |
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2019
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Patent Citations (10)
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| KR940021860A (en) * | 1993-03-16 | 1994-10-19 | 권태영 | Pipe rail manufacturing method and device |
| CN2209564Y (en) * | 1994-11-22 | 1995-10-11 | 江苏省扬州市客车制造总厂 | Rectangular tube small curvature radius bender |
| CN1152492A (en) * | 1995-12-21 | 1997-06-25 | 陶晟 | Production method for pipe of car silencer |
| CN101234466A (en) * | 2008-03-11 | 2008-08-06 | 无锡曙光模具有限公司 | Vehicle rear axle assembly breast beam production method and special-purpose mold therefor |
| CN103521627A (en) * | 2013-08-27 | 2014-01-22 | 上海汇众汽车制造有限公司 | Floating core-pulling mechanism for pipe fitting forming |
| KR20150074407A (en) * | 2013-12-24 | 2015-07-02 | 주식회사 성우하이텍 | Forming method of bumper beam for vehicles |
| CN203979670U (en) * | 2014-07-24 | 2014-12-03 | 斯丹德汽车系统（苏州）有限公司 | A kind of oil pipe and there is the oil pipe component of this oil pipe |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110538916A (en) * | 2019-09-04 | 2019-12-06 | 长春近江汽车零部件有限公司 | Water expansion forming process for pipe fitting for automobile engine |
| CN110605331A (en) * | 2019-10-24 | 2019-12-24 | 吴玉坤 | Three-dimensional punching machine |
| CN110605331B (en) * | 2019-10-24 | 2021-05-07 | 吴玉坤 | Three-dimensional punching machine |
| CN112024723A (en) * | 2020-08-21 | 2020-12-04 | 江苏恒高电气制造有限公司 | GIL small-angle shell bending device |
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