CN109201795B - A kind of arrangements for automotive doors guide rail stretch benders - Google Patents
A kind of arrangements for automotive doors guide rail stretch benders Download PDFInfo
- Publication number
- CN109201795B CN109201795B CN201811194274.3A CN201811194274A CN109201795B CN 109201795 B CN109201795 B CN 109201795B CN 201811194274 A CN201811194274 A CN 201811194274A CN 109201795 B CN109201795 B CN 109201795B
- Authority
- CN
- China
- Prior art keywords
- fixed
- guide rail
- oil cylinder
- pivoted arm
- block
- 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.)
- Expired - Fee Related
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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
- B21D7/00—Bending rods, profiles, or tubes
-
- 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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
-
- 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a kind of arrangements for automotive doors guide rail stretch benders, it mainly includes workbench, sliding stand, pivoted arm, cam, idler wheel, clamping mold, angle mould, side pressing block, pressure plate, the identical clamping component of two structures and steel core component, wherein sliding stand is located on workbench, clamping mold, side pressing block, idler wheel, pressure plate and left clamp component and left steel core component are located on sliding stand, move with the sliding of sliding stand；Cam, angle mould, right clamp component and right steel core component are located on pivoted arm, rotate with the rotation of pivoted arm.The present invention uses machine automatization punching, greatly improves punching efficiency when door rail stretch bending；Realize that curved position control improves stretch bending precision using cam；Prevent door rail profile from cross section distortion occur when shaping using side pressing block；Clamping device is able to achieve self-locking function at work, keeps clamping workpiece during stretch bending reliable and stable.
Description
Technical field
The invention belongs to field of mechanical technique, in particular to a kind of door rail stretch benders.
Background technique
Arrangements for automotive doors guide rail is a kind of part playing the guiding role to cliding door.Its function is car door in opening and closing,
Idler wheel rolls in guide rail sliding chute, plays a part of the entire car door of support and guiding, and required precision is high, and guide rail section needs everywhere
It is equal, without deformity.Mostly arrangements for automotive doors guide rail is cambered, to improve product shaping precision, reduces rebound, need to adopt
It is shaped with stretch bending.In stretch bending forming, door rail is easy to narrow at arc portion position guide rail sectional dimension, to prevent this
The generation of one phenomenon needs to fill by fuse, to play the role of supporting internal cavity.Existing equipment needs manually mostly
Punching is carried out, the labour cost needed is high and working efficiency is extremely low.
Summary of the invention
The purpose of the present invention is to provide a kind of efficient arrangements for automotive doors that can be improved punching efficiency and stretch bending precision
Guide rail stretch benders.
The present invention includes workbench, sliding stand, pivoted arm, cam, idler wheel, clamping mold, angle mould, side pressing block, pressure plate, two
The identical clamping component of a structure and steel core component, wherein the side of workbench is equipped with guide rail, and guide rail is equipped with sliding stand, sliding
Platform is constrained in worktable upper surface by guide rail and is allowed to that movement along the x axis can only be done along guide rail；One end of sliding stand is set
There is steel core component I, the steel core component I includes guide rail III, steel core, punching oil cylinder, positive stop, backstop, and wherein guide rail III is solid
It is scheduled on sliding stand, steel core is fixed on sliding block III, and the outer end face of sliding block III is equipped with threaded hole, the piston rod spiral shell with punching oil cylinder
Line connection, moves under the constraint of guide rail III along X-axis, the cylinder body of punching oil cylinder is fixed on positive stop, and the other end is fixed on
On backstop, forward and backward block is each attached on guide rail III；The sliding stand adjacent with steel core component I is equipped with connection frame I, connection
Frame I be equipped with clamping component I, the clamping component I include including body, baffle, guide plate, upper fixture block, lower fixture block, sliding block IV,
Axis I, connecting rod, axis II, ears ring II, turning handle, axis III, oil cylinder IV, cylinder bracket, axis III pass through the top of turning handle and will turn
Handle is fixed on the machine body, the lower end of turning handle, one end of ears ring II, connecting rod upper end connected by axis II, ears ring II it is another
One end face is equipped with threaded hole and connect with the piston rod thread of oil cylinder IV, the cylinder body of oil cylinder IV and the cylinder bracket being fixed on the machine body
Connection, oil cylinder IV can be swung in vertical direction；The lower end of the connecting rod is connect by axis I with the upper end of sliding block IV, sliding block IV
Lower end connect with upper fixture block, the side of sliding block IV is bonded with the guide plate being fixed on the machine body, and the other side is bonded with body, is made
Sliding block IV can only be slided up and down along guide plate；Lower fixture block is fixed on the body below upper fixture block, and baffle is fixed on III outside of axis
On body；The sliding stand of the other side of above-mentioned connection frame I is equipped with two parallel brackets II, and two brackets II are equipped with clamping
Mold；
With clamping mold on the outside of workbench on be equipped with cylinder support in parallel, the cylinder body of oil cylinder I passes through pin I and oil
The connection of cylinder support, oil cylinder I can be swung about the z axis, and the piston rod of oil cylinder I is connect with the threaded one end of ears ring I, ears ring I
The other end is connect by pin II with pivoted arm；The pivoted arm is located at the other side of workbench, is part Circular plate structure, and outer peripheral surface is set
In in the fixed corresponding groove of pivoted arm guide rail on the table, the pivoted arm guide rail is arc stick, and pivoted arm is by key and turns
Axis connection, pivoted arm are turned about the Z axis together with shaft in pivoted arm guide rail by shaft, and above-mentioned shaft is also successively cased with from top to bottom
Cam, self-aligning roller bearing, round nut II, tapered roller bearing, round nut I, wherein cam is fixed in shaft, cam and rolling
Wheel contact, the inner ring of self-aligning roller bearing and tapered roller bearing is axially fixed in shaft respectively by round nut II and round nut I
On, the outer ring of self-aligning roller bearing and tapered roller bearing is in sleeve, and sleeve and workbench are connected, and the upper end of sleeve is under
End is respectively equipped with the upper end cover and lower cover being connected with sleeve；Above-mentioned rollers are located on roller shaft, and needle bearing is equipped in idler wheel,
Needle bearing inner ring is fixed on roller shaft by circlip I, and needle bearing outer ring is fixed on idler wheel by circlip II, idler wheel
Axis is located on sliding stand；Pivoted arm is equipped with steel core component II, connection frame II, and connection frame II is equipped with clamping component II, steel core group
The structure of part II, connection frame II and clamping component II is identical as the structure of steel core component I, connection frame I and clamping component I, but phase
To setting；It is adjacent with connection frame II, on the pivoted arm of sliding stand side be equipped with angle mould bracket, angle mould bracket be equipped with angle mould；
Bracket I is fixed on the sliding stand of pivoted arm side, and bracket I is equipped with guide rail I, and guide rail I is equipped with slider I, and guide rail I is by sliding block
I, which is constrained in I upper surface of bracket, is allowed to move along Y axis, and slider I is equipped with side pressing block, the piston rod and side pressing block of oil cylinder II
Outer end face is threadedly coupled, and the cylinder body of oil cylinder II is fixed on cushion block I, and cushion block I is fixed on bracket I；In above-mentioned clamping mold
The sliding stand of side is equipped with guide rail II, and guide rail II is equipped with cushion block II and sliding block II, and sliding block II is equipped with pressure plate, oil cylinder III
Piston rod and sliding block II, be threadedly coupled, the cylinder body of oil cylinder III is fixed on cushion block II, clamps mold under the constraint of guide rail II
It is moved along Y-axis.
When work, first by workpiece to be added be placed on clamping mold on, oil cylinder III push sliding block II drive pressure plate along Y axis just
Direction is advanced, and workpiece to be added is leaned against on clamping mold, and subsequent punching oil cylinder is started to work, forward with sliding block III and steel core,
Complete punching work.Oil cylinder IV is travelled forward by II impeller-hub II of ears ring, and sliding block IV is made to drive upper fixture block downward along guide plate
Sliding clamps workpiece to be added up and down.Oil cylinder II pushes side pressing block that slider I is driven to march forward along Y-axis pros, by workpiece pressure to be added
Tightly on angle mould, sliding block II is driven pressure plate to draw toward Y-axis negative direction by oil cylinder III, separates pressure plate with workpiece to be added, finally
The piston rod of oil cylinder I is shunk, and rotates pivoted arm around the shaft by ears ring I, cam, angle mould, right fixture, right type core and pivoted arm one
With rotation, the X-axis moving distance of left fixture is controlled by the shape of cam.After shaft turns over specified angle, stretch bending process terminates.
The invention has the following advantages over the prior art:
1, using machine automatization punching, compared with manually punching, efficiency is greatly improved.
2, realize that curved position control improves stretch bending precision using cam.
3, clamping device is able to achieve self-locking function at work, keeps clamping workpiece during stretch bending reliable and stable.
4, prevent door rail profile from cross section distortion occur when shaping using side pressing block.
Detailed description of the invention
Fig. 1 is three-dimensional simplified schematic diagram of the invention.
Fig. 2 is main view of the invention.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the cross-sectional view of roller portion of the present invention.
Fig. 5 is the partial cutaway view of clamping component of the present invention.
Fig. 6 is the A-A view of Fig. 5.
In figure: 1. punching oil cylinders, 2. clamping components I, 3. cylinder supports, 4. pins I, 5. clamping mold, the rolling of 6. oil cylinders I, 7.
Wheel shaft, 8. idler wheels, 9. cams, 10. angle moulds, 11. ears rings I, 12. pins II, 13. pivoted arms, 14. connection frames II, 15. pivoted arms are led
Rail, 16. workbench, 17. angle mould brackets, 18. guide rails I, 19. side pressing blocks, 20. slider Is, 21. oil cylinders II, 22. cushion blocks I, 23.
Bracket I, 24. guide rails, 25. pressure plates, 26. sliding blocks II, 27. oil cylinders III, 28. guide rails II, 29. cushion blocks II, 30. brackets II, 31.
Sliding stand, 32. guide rails III, 33. sliding blocks III, 34. steel cores, 35. positive stops, 36. backstops, 37. keys, 38. sleeves, 39. are adjusted
Heart roller bearing, 40. tapered roller bearings, 41. round nuts I, 42. lower covers, 43. shafts, 44. round nuts II, 45. upper ends
Lid, 46. circlips I, 47. needle bearings, 48. circlips II, 49. bodies, 50. baffles, 51. bolts I, 52. bolts II, 53. are led
Plate, 54. upper fixture blocks, 55. lower fixture blocks, 56. sliding blocks IV, 57. axis I, 58. connecting rods, 59. axis II, 60. ears rings II, 61. turning handles,
62. axis III, 63. oil cylinders IV, 64. cylinder brackets, 65. workpiece to be added, 66. connection frames I, 67. clamping components II.
Specific embodiment
In Fig. 1-arrangements for automotive doors guide rail stretch benders schematic diagram shown in Fig. 3, the side of workbench 16 is equipped with guide rail 24, leads
Rail is equipped with sliding stand 31, and sliding stand is constrained in worktable upper surface by guide rail and is allowed to do along the x axis along guide rail
Movement；One end of sliding stand is equipped with steel core component I, and the guide rail III 32 in steel core component I is fixed on sliding stand, on guide rail III
Equipped with sliding block III 33, steel core 34 is fixed on sliding block III, and the outer end face of sliding block III is equipped with threaded hole, the piston with punching oil cylinder 1
Bar is threadedly coupled, and is moved under the constraint of guide rail III along X-axis, the cylinder body of punching oil cylinder is fixed on positive stop 35, the other end
It is fixed on backstop 36, forward and backward block is each attached on guide rail III；The slide unit adjacent with steel core component I is equipped with connection frame
I 66, connection frame I is equipped with clamping component I 2, and as shown in Figure 5 and Figure 6, the axis III 62 in clamping component I passes through the upper of turning handle 61
Turning handle is simultaneously fixed on body 49 by portion, the lower end of turning handle, one end of ears ring II 60, connecting rod 58 upper end pass through axis II 59 connect
It connects, the other end of ears ring II is equipped with threaded hole and connect with the piston rod thread of oil cylinder IV 63, the cylinder body of oil cylinder IV and fixation
Cylinder bracket 64 on body connects, and oil cylinder IV can be swung in vertical direction；The lower end of the connecting rod is by axis I 57 and slides
The upper end of block IV 56 connects, and the lower end of sliding block IV is connect with upper fixture block 54, and the side of sliding block IV is fixed on by bolt II 52
Guide plate 53 on body is bonded, and the other side is bonded with body, slide up and down sliding block IV can only along guide plate；Lower fixture block 55 is solid
It is scheduled on the body below upper fixture block, baffle 50 is fixed on the body in III outside of axis by bolt I 51；Above-mentioned connection frame I
The sliding stand of the other side is equipped with two parallel brackets II 30, and two brackets II are equipped with clamping mold 5；
With clamping mold on the outside of workbench on be equipped with cylinder support 3 in parallel, the cylinder body of oil cylinder I 6 passes through pin I 4
It is connect with cylinder support, oil cylinder I can be swung about the z axis, and the piston rod of oil cylinder I is connect with the threaded one end of ears ring I 11, double
The other end of earrings I is connect by pin II 12 with pivoted arm 13；The pivoted arm is located at the other side of workbench, is part plectane knot
Structure, outer peripheral surface are placed in the fixed corresponding groove of pivoted arm guide rail 15 on the table, and the pivoted arm guide rail is arc stick,
Pivoted arm is connect by key 37 with shaft 43, and pivoted arm is turned about the Z axis together with shaft in pivoted arm guide rail by shaft, above-mentioned shaft
It is also successively cased with cam 9, self-aligning roller bearing 39, tapered roller bearing 40 from top to bottom, wherein cam is fixed in shaft, convex
Wheel is contacted with idler wheel 8, and round nut II 44 and round nut I 41 are respectively by the inner ring of self-aligning roller bearing and tapered roller bearing axial direction
It being fixed in shaft, in sleeve 38, sleeve and workbench are connected for the outer ring of self-aligning roller bearing and tapered roller bearing,
The top and bottom of sleeve are respectively equipped with the upper end cover 45 and lower cover 42 being connected with sleeve；As shown in figure 4, above-mentioned rollers are set
On roller shaft 7, needle bearing 47 is equipped in idler wheel, needle bearing inner ring is fixed on roller shaft by circlip I 46, needle roller axis
Bearing outer-ring is fixed on idler wheel by circlip II 48, and roller shaft is located on sliding stand；Pivoted arm is equipped with steel core component II, connection
Frame II 14, connection frame II are equipped with clamping component II 67, the structure and steel core of steel core component II, connection frame II and clamping component II
Component I, connection frame I are identical with the structure of clamping component I, but are oppositely arranged；Adjacent with connection frame II, by sliding stand side
Pivoted arm is equipped with angle mould bracket 17, and angle mould bracket is equipped with angle mould 10；Bracket I 23 is fixed on the sliding stand of pivoted arm side,
Bracket I is equipped with guide rail I 18, and guide rail I is equipped with slider I 20, and slider I is constrained in that I upper surface of bracket is allowed to by guide rail I can only edge
Y-axis movement, slider I are equipped with side pressing block 19, and the piston rod of oil cylinder II 21 is threadedly coupled with side pressing block outer end face, the cylinder of oil cylinder II
Body is fixed on cushion block I 22, and cushion block I is fixed on bracket I；Guide rail II is equipped on the sliding stand of above-mentioned clamping die inside
28, guide rail II is equipped with cushion block II 29 and sliding block II 26, and sliding block II is equipped with pressure plate 25, the piston rod and cunning of oil cylinder III 27
Block II is threadedly coupled, and the cylinder body of oil cylinder III is fixed on cushion block II, and clamping mold moves under the constraint of guide rail II along Y-axis.
When work, first by workpiece 65 to be added be placed on clamping mold on, oil cylinder III push sliding block II drive pressure plate along Y-axis just
Direction is advanced, and workpiece to be added is leaned against on clamping mold, and subsequent punching oil cylinder is started to work, forward with sliding block III and steel core,
Complete punching work.Oil cylinder IV is travelled forward by II impeller-hub II of ears ring, and sliding block IV is made to drive upper fixture block downward along guide plate
Sliding clamps workpiece to be added up and down.Oil cylinder II pushes side pressing block that slider I is driven to march forward along Y-axis pros, by workpiece pressure to be added
Tightly on angle mould, sliding block II is driven pressure plate to draw toward Y-axis negative direction by oil cylinder III, separates pressure plate with workpiece to be added.Finally
The piston rod of oil cylinder I is shunk, and rotates pivoted arm around the shaft by ears ring I, cam, angle mould, right fixture, right type core and pivoted arm one
With rotation, the X-axis moving distance of left fixture is controlled by the shape of cam.After shaft turns over specified angle, stretch bending process terminates.
Claims (1)
1. a kind of arrangements for automotive doors guide rail stretch benders comprising workbench, sliding stand, pivoted arm, cam, idler wheel, clamping mold, angle
Mould, side pressing block, pressure plate, the identical clamping component of two structures and steel core component, it is characterised in that: the side of the workbench
Equipped with guide rail, guide rail is equipped with sliding stand, and one end of sliding stand is equipped with steel core component I, the steel core component I include guide rail III,
Steel core, punching oil cylinder, positive stop, backstop, wherein guide rail III is fixed on sliding stand, and steel core is fixed on sliding block III, sliding block
III outer end face is equipped with threaded hole, connect with the piston rod thread of punching oil cylinder, cylinder body one end of punching oil cylinder is fixed on front
On block, the other end is fixed on backstop, and forward and backward block is each attached on guide rail III；The sliding stand adjacent with steel core component I
Be equipped with connection frame I, connection frame I be equipped with clamping component I, the clamping component I include body, baffle, guide plate, upper fixture block,
Lower fixture block, sliding block IV, axis I, connecting rod, axis II, ears ring II, turning handle, axis III, oil cylinder IV, cylinder bracket, axis III, which passes through, to be turned
Turning handle is simultaneously fixed on the machine body by the top of handle, the lower end of turning handle, one end of ears ring II, connecting rod upper end connected by axis II
Connect, the other end of ears ring II is equipped with threaded hole and connect with the piston rod thread of oil cylinder IV, the cylinder body of oil cylinder IV be fixed on
Cylinder bracket connection on body；The lower end of the connecting rod is connect by axis I with the upper end of sliding block IV, the lower end of sliding block IV with it is upper
Fixture block connection, the side of sliding block IV are bonded with the guide plate being fixed on the machine body, and the other side is bonded with body；Lower fixture block is fixed on
On body below upper fixture block, baffle is fixed on the body in III outside of axis；It is set on the sliding stand of the other side of above-mentioned connection frame I
There are two parallel brackets II, two brackets II are equipped with clamping mold；
Cylinder support in parallel is equipped on the workbench on the outside of clamping mold, the cylinder body of oil cylinder I passes through pin I and oil cylinder
Support connection, the piston rod of oil cylinder I are connect with the threaded one end of ears ring I, and the other end of ears ring I is connected by pin II and pivoted arm
It connects；The pivoted arm is located at the other side of workbench, is part Circular plate structure, and outer peripheral surface is placed in fixed pivoted arm on the table
In the corresponding groove of guide rail, the pivoted arm guide rail is arc stick, and pivoted arm is connect by key with shaft, and above-mentioned shaft is from top to bottom
It is also successively cased with cam, self-aligning roller bearing, round nut II, tapered roller bearing, round nut I, wherein cam is fixed on shaft
On, cam is contacted with idler wheel, and round nut II and round nut I are respectively by the inner ring of self-aligning roller bearing and tapered roller bearing axial direction
It is fixed in shaft, the outer ring of self-aligning roller bearing and tapered roller bearing is in sleeve, and sleeve and workbench are connected, sleeve
Top and bottom be respectively equipped with sleeve be connected upper end cover and lower cover；Above-mentioned rollers are located on roller shaft, are set in idler wheel
There is needle bearing, needle bearing inner ring is fixed on roller shaft by circlip I, and needle bearing outer ring is fixed on rolling by circlip II
On wheel, roller shaft is located on sliding stand；Pivoted arm is equipped with steel core component II, connection frame II, and connection frame II is equipped with clamping component
II, structure and steel core component I, the structure of connection frame I and clamping component I of steel core component II, connection frame II and clamping component II
It is identical, but be oppositely arranged；It is adjacent with connection frame II, angle mould bracket is equipped on the pivoted arm of sliding stand side, on angle mould bracket
Equipped with angle mould；Bracket I is fixed on the sliding stand of pivoted arm side, and bracket I is equipped with guide rail I, and guide rail I is equipped with slider I, leads
Slider I is constrained in I upper surface of bracket and is allowed to move along Y-axis by rail I, and slider I is equipped with side pressing block, the piston rod of oil cylinder II
It is threadedly coupled with side pressing block outer end face, the cylinder body of oil cylinder II is fixed on cushion block I, and cushion block I is fixed on bracket I；In above-mentioned folder
The sliding stand for holding die inside is equipped with guide rail II, and guide rail II is equipped with cushion block II and sliding block II, and sliding block II is equipped with binder
The piston rod of plate, oil cylinder III is threadedly coupled with sliding block II, and the cylinder body of oil cylinder III is fixed on cushion block II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811194274.3A CN109201795B (en) | 2018-10-15 | 2018-10-15 | A kind of arrangements for automotive doors guide rail stretch benders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811194274.3A CN109201795B (en) | 2018-10-15 | 2018-10-15 | A kind of arrangements for automotive doors guide rail stretch benders |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109201795A CN109201795A (en) | 2019-01-15 |
| CN109201795B true CN109201795B (en) | 2019-11-22 |
Family
ID=64980277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811194274.3A Expired - Fee Related CN109201795B (en) | 2018-10-15 | 2018-10-15 | A kind of arrangements for automotive doors guide rail stretch benders |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109201795B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111633080A (en) * | 2020-06-03 | 2020-09-08 | 明达铝业科技(太仓)有限公司 | Anti-collision beam stretch bending forming process and stretch bending equipment thereof |
| CN112122417A (en) * | 2020-10-10 | 2020-12-25 | 深圳市华加日西林实业有限公司 | Elbow forming equipment of automobile sunroof guide rail |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2937117Y (en) * | 2006-08-15 | 2007-08-22 | 广东福迪汽车有限公司 | Three-D digital control stretch benders for vehicle door glass guides |
| WO2010050059A1 (en) * | 2008-10-31 | 2010-05-06 | 日軽金アクト株式会社 | Bent member manufacturing method, bumper reinforcement manufacturing method and bending apparatus, and bumper reinforcement manufacturing apparatus |
| CN202539293U (en) * | 2012-03-06 | 2012-11-21 | 柳州凌云汽车零部件有限公司 | Chuck for stretch bender of automobile door guide rail |
| CN207806276U (en) * | 2018-01-24 | 2018-09-04 | 顺普汽车零部件（中国）有限公司 | The stretch bending device of stretch bending is synchronized for tubing both ends |
-
2018
- 2018-10-15 CN CN201811194274.3A patent/CN109201795B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN109201795A (en) | 2019-01-15 |
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