CN109940095A - A kind of mold manufacturing motor vehicle seat back endless tube - Google Patents
A kind of mold manufacturing motor vehicle seat back endless tube Download PDFInfo
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- CN109940095A CN109940095A CN201910326492.6A CN201910326492A CN109940095A CN 109940095 A CN109940095 A CN 109940095A CN 201910326492 A CN201910326492 A CN 201910326492A CN 109940095 A CN109940095 A CN 109940095A
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- circular arc
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- bearing course
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Abstract
A kind of mold manufacturing motor vehicle seat back endless tube, including there are upper impression (121) on the upper mold (1), there are lower impressions (221) on the lower die (1), have in the upper impression (121) and descends convex flat face (14 everywhere, 15, 16, 17), the second circular arc line (132) on the upper impression (121) and the second sideline (1212) on upper impression (121) are tangent, and second the center of circle of circular arc line (132) be located between the first circular arc line (131) and the center of circle of the first outer circle camber line (1211), second circular arc line (132) and the distance of center circle D1 of the first circular arc line (1211) are 1mm-2.7mm, second circular arc line (132) is mutually cut with upper impression (121) to be formed first and cuts cambered surface (136)；Lower impressions (221) the folding corner and upper impression (221) folding corner are symmetrical above and below.
Description
Technical field
The present invention relates to a kind of automotive seat molds, in particular relate to a kind of mold for manufacturing motor vehicle seat back endless tube.
Background technique
Motor vehicle seat back endless tube needs to be welded on motor vehicle seat back plate, so putting down to motor vehicle seat back bend pipe
The problem of face degree and profile tolerance have certain requirement, are otherwise easy to appear failure welding.As depicted in figs. 1 and 2, automotive seat leans on
Back ring pipe its outer diameter φ is 32mm, and the radius of central line r of folding corner is 64mm, and is had everywhere on motor vehicle seat back endless tube
(a, b, c, d) needs to flatten the region in face, and requires the surface profile of motor vehicle seat back bend pipe no more than 0.8mm, whole
Flatness within 1.5mm.As shown in Fig. 2, due to flattening the partial denaturization at face, leaning on automotive seat at the face of pressing
Back ring pipe generates internal stress, is influenced by internal stress, and motor vehicle seat back endless tube generates warping phenomenon in folding corner, causes whole
Body flatness is in 1.5mm or more.Motor vehicle seat back endless tube is the welding basic part of entire backrest, and remaining parts are substantially base
It is welded in backrest bend pipe.The torsional deformation of motor vehicle seat back endless tube will lead to the generation of product a series of problems, such as:
Backrest integral incline, influences product appearance；Backrest skew influences the subsequent assembly of product；Backrest frames failure welding, the inclined weldering of appearance,
The welding defects such as rosin joint, burn-through.
In addition, the direction of vertical mold upper and lower surface increases pressure effect since the internal stress that warping phenomenon is endless tube causes
Fruit is not obvious, and endless tube has profile tolerance requirement, and locally extruding force is excessive up and down also results in the overproof problem of profile tolerance.
Summary of the invention
The purpose of the present invention is to provide a kind of molds for manufacturing motor vehicle seat back endless tube to solve motor vehicle seat back
The warpage issues of endless tube in the fabrication process.
A kind of mold manufacturing motor vehicle seat back endless tube, including upper die and lower die have upper impression, institute in the upper mold
Stating has lower impressions in lower die, have in the upper impression and descend convex flat face everywhere, the first circular arc of upper impression folding corner
The radius of line is 80mm and, second circular arc line and upper impression of upper impression folding corner tangent with the first sideline of upper impression
On the second sideline it is tangent, and the center of circle of the second circular arc line is between the first circular arc line and the center of circle of the first external arc, second
The distance of center circle D1 of circular arc line and the first circular arc line is 1mm-2.7mm, mutually cuts to be formed in second circular arc line and the upper impression
First cuts cambered surface；The third circular arc line radius R2 of lower impressions folding corner is 80mm and the third sideline phase with lower impressions
It cuts, the 4th circular arc line of lower impressions folding corner and the 4th sideline in lower impressions are tangent, and the center of circle of the 4th circular arc line
Between third circular arc line and the center of circle of third circular arc line, the distance of center circle D2 and distance of center circle of the 4th circular arc line and third circular arc line
D1 is identical, mutually cuts to form second and cut cambered surface on the 4th circular arc line and the lower impressions.
Preferably, the upper mold includes mo(u)ld top half cavity layer and upper bearing course, and the lower die includes mo(u)ld bottom half cavity layer and lower bearing course；
The upper impression is arranged in the mo(u)ld top half cavity layer, and the lower impressions are arranged in the mo(u)ld bottom half cavity layer；The mo(u)ld top half cavity layer and
First buffer spring is housed between the upper bearing course, the second buffering elastic is housed between the mo(u)ld bottom half cavity layer and the lower bearing course
Spring.
Preferably, for dress there are four the first buffer spring, four first slow between the mo(u)ld top half cavity layer and the upper bearing course
Spring is rushed to be square on the lower end surface of upper bearing course distribution, and the rectangular geometric center that four the first buffer springs are constituted
It is overlapped with the geometric center of upper bearing course；Second buffer spring there are four dresses between the mo(u)ld bottom half cavity layer and the lower bearing course,
Four the second buffer springs are square distribution on the upper surface of lower bearing course, and four the second buffer springs constituted it is rectangular
Geometric center be overlapped with the geometric center of lower bearing course.
Preferably, four folding corners of the upper impression have the upper bending slot through its upper and lower end face, the upper folding
Upper folded block is housed in curved groove, there is upper bending-type chamber on the upper folded block, described first, which cuts cambered surface, is located at the upper bending
On type chamber, the upper folded block is fixedly connected with the upper bearing course by screw；Four folding corners of the lower impressions have
There is the lower bending slot through its upper and lower end face, lower folded block is housed in the lower bending slot, there is lower folding on the lower folded block
Curved chamber, described second, which cuts cambered surface, is located on the lower bending-type chamber, and lower folded block is fixedly connected with lower bearing course by screw.
Technical effect:
The second circular arc line and upper impression of the mold upper impression folding corner of manufacture motor vehicle seat back endless tube of the invention
On the second sideline it is tangent, lower impressions roll over corner the 4th circular arc line and the 4th sideline in lower impressions it is tangent, tangent connection
It avoids and generates inflection point at bending angle and the junction of other parts, influence product profile tolerance；Second circular arc line and the first circular arc
The distance of center circle D1 of line is 1mm-2.7mm, has in upper impression and mutually cuts to be formed first with the second circular arc line and cut cambered surface, distance of center circle D2
It is identical as distance of center circle D1, have in lower impressions and mutually cuts to be formed second with the 4th circular arc line and cut cambered surface, distance of center circle D1, D2 1mm-
2.7mm provides the tension to four angular divergence when motor vehicle seat back endless tube flattens face for it, the automobile after making pressing face
No longer there are warpage issues in backrest endless tube；Meanwhile also ensuring that the tension to four angular divergence makes motor vehicle seat back ring
The deformation that pipe generates is in the range of profile tolerance allows.
It is slow equipped with first between the mo(u)ld top half cavity layer and upper bearing course of the mold of manufacture motor vehicle seat back endless tube of the invention
Spring is rushed, the second buffer spring is housed between mo(u)ld bottom half cavity layer and lower bearing course, the collision between mold is slowed down, extends mold
Service life.
Four the first buffer springs of the mold of manufacture motor vehicle seat back endless tube of the invention are constituted rectangular several
What center is overlapped with the geometric center of upper bearing course, the rectangular geometric center that four the second buffer springs are constituted and lower pressure-bearing
The geometric center of layer is overlapped, and ensure that the balance of upper and lower intermode cushion effect.
Upper folded block is housed, in lower bending slot in the upper bending slot of the mold of manufacture motor vehicle seat back endless tube of the invention
It equipped with lower folded block, concentrates on the pressure between upper and lower mould on upper and lower folded block, improves the molding on upper and lower folded block
Effect.
Detailed description of the invention
Fig. 1 is the top view of motor vehicle seat back endless tube；
Fig. 2 is motor vehicle seat back endless tube stress diagram in process；
Fig. 3 is the bottom view of the upper mold in the specific embodiment of the invention；
Fig. 4 is the top view of the lower die in the specific embodiment of the invention；
Fig. 5 is the exploded view of the upper mold in the specific embodiment of the invention；
Fig. 6 is the exploded view of the lower die in the specific embodiment of the invention；
Fig. 7 be in the specific embodiment of the invention under (on) top view of folded block；
Fig. 8 be in the specific embodiment of the invention under (on) left view of folded block；
Fig. 9 be in the specific embodiment of the invention under (on) rearview of folded block；
Figure 10 be in the specific embodiment of the invention under (on) main view of folded block
Figure 11 be in Fig. 7 specific embodiment of the invention under (on) the A-A cross-sectional view of folded block
Specific embodiment
As shown in Figure 3 and Figure 4, a kind of mold manufacturing motor vehicle seat back endless tube includes upper mold 1 and lower die 2, and upper mold 1 is wrapped
Mo(u)ld top half cavity layer 12 and upper bearing course 11 are included, lower die 2 includes mo(u)ld bottom half cavity layer 22 and lower bearing course 21.
As shown in Figure 3 and Figure 5, have on the lower end surface of mo(u)ld top half cavity layer 12 opposite with the outer profile of motor vehicle seat back endless tube
The upper impression 121 answered, and there is the upper bending slot 122 through its upper and lower end face, upper folding in four folding corners of upper impression 121
Upper folded block 13 is housed, upper folded block 13 is fixedly connected with upper bearing course 11 by screw in curved groove 122；The of upper folded block 13
The radius of one circular arc line 131 is 80mm, and the first circular arc line 131 and the first sideline 1211 are tangent；Second on upper folded block 13
The center of circle of circular arc line 132 is between the first circular arc line 131 and the center of circle of the first circular arc line 131, the second circular arc line 132 and first
Distance of center circle between circular arc line 131 is 2.7mm, and the second circular arc line 132 and the second sideline 1212 are tangent；In addition, upper impression 121
It is upper there are also the rectangular notch 124,125,126,127 for running through 121 upper and lower end face of upper impression everywhere, rectangular notch 124,125,126,
127 position is corresponding with region a, b, c, d for needing to flatten face everywhere on motor vehicle seat back endless tube, cloth in rectangular notch
It is equipped with plane briquetting 14,15,16,17, plane briquetting 14,15,16,17 is fixedly connected with upper bearing course 11；Upper impression 121 is fitted
When there are four the first pilot holes 123 for running through its upper and lower end face for arrangement on position.Four are installed on the lower end surface of upper bearing course 11
First buffer spring 18, and to be bolted, the cylindricality blind hole of the other end insertion mo(u)ld top half cavity layer 12 of the first buffer spring 18 is (not
Mark) in, and connect with bolt with mo(u)ld top half cavity layer 12；Four the first buffer springs 18 are on the lower end surface of upper bearing course 11 in side
Shape distribution, and the rectangular geometric center that four the first buffer springs 18 are constituted is overlapped with the geometric center of upper bearing course 11.
As shown in Figure 4 and Figure 6, have on the upper surface of mo(u)ld bottom half cavity layer 22 opposite with the outer profile of motor vehicle seat back endless tube
The lower impressions 221 answered, and there is the lower bending slot 222 through its upper and lower end face, lower folding in four folding corners of lower impressions 221
Lower folded block 23 is housed, lower folded block 23 is fixedly connected with lower bearing course 21 by screw in curved groove 22；The of lower folded block 23
The radius of three-arc line 231 is 80mm, and tangent with third sideline 2211；The circle of the 4th circular arc line 232 on lower folded block 23
The heart is between third circular arc line 231 and the center of circle of third circular arc line 231, between the 4th circular arc line 232 and third circular arc line 231
Distance of center circle is 2.7mm, and the 4th circular arc line 232 and the 4th sideline 2212 are tangent；In addition, being passed through at also three in lower impressions 221
The rectangular notch 224,225,226 of 22 upper and lower end face of lower impressions is worn, the position of rectangular notch 224,225,226 and automotive seat lean on
On back ring pipe three at need to flatten face region a, b, c it is corresponding, be disposed with plane briquetting in rectangular notch 224,225,226
24,25,26, plane briquetting 24,25,26 is fixedly connected with upper bearing course 11；There are four the second pilot holes for the tool of mo(u)ld bottom half cavity layer 22
223, and it is corresponding with four the first about 123 pilot holes in mo(u)ld top half cavity layer 12.Four are installed on the upper surface of lower bearing course 21
Second buffer spring 28, and to be bolted, in the cylindricality blind hole of the other end insertion mo(u)ld bottom half cavity layer 22 of the second buffer spring 28
(not shown), and connect with bolt with mo(u)ld bottom half cavity layer 22；Four the second buffer springs 28 are on the upper surface of lower bearing course 21
Rectangular distribution, and the geometric center weight of the rectangular geometric center that is constituted of four the second buffer springs 28 and lower bearing course 21
It closes.It is also equipped with four guide posts 27 on the appropriate location of the upper surface of lower bearing course 21, is led with the first pilot hole 123, second
It is matched to hole 223.
The structure of upper folded block 13 and the structure of lower folded block 23 are symmetrical above and below.As shown in Fig. 6-Figure 10, upper folded block 13
For the ring block at 90 ° of angle, there is an annular upper bending-type chamber 133 on upper folded block 13, the of upper bending-type chamber 133
The radius that one interface 134, second interface 135 are is the semicircle mouth of 16mm, is had and the second circular arc on upper bending-type chamber 133
Mutually cut to be formed first cuts cambered surface 136 to line 132 vertically.Lower folded block 23 is the ring block at 90 ° of angle, is had on lower folded block 23
There is an annular lower bending-type chamber 233, the radius that the first interface 234 of lower bending-type chamber 233, second interface 235 are is
The semi arch of 16mm, has that mutually cutting to be formed second cuts cambered surface 236 vertically with the 4th circular arc line 232 on lower bending-type chamber 233.
Embodiment is only that the preferred embodiment of invention is described, and is not limited the scope of the present invention
Fixed, without departing from the spirit of the design of the present invention, those of ordinary skill in the art make technical solution of the present invention
Various modifications should all be fallen into the protection scope that claims of the present invention determines.
Claims (4)
1. a kind of mold for manufacturing motor vehicle seat back endless tube, including upper mold (1) and lower die (2), with upper on the upper mold (1)
Type chamber (121) has lower impressions (221) on the lower die (1), have in the upper impression (121) descend everywhere convex flat face (14,
15,16,17), it is characterised in that: the radius of the first circular arc line (131) on the upper impression (121) is 80mm and and upper impression
(121) the first sideline (1211) is tangent, on the second circular arc line (132) on the upper impression (121) and upper impression (121)
Second sideline (1212) is tangent, and the center of circle of the second circular arc line (132) is located at the first circular arc line (131) and the first outer circle camber line
(131) between the center of circle, the distance of center circle D1 of the second circular arc line (132) and the first circular arc line (131) is 1mm-2.7mm, described the
Two circular arc lines (132) are mutually cut with upper impression (121) to be formed first and cuts cambered surface (136)；The of the lower impressions (221) folding corner
Three-arc line (231) radius is 80mm and, lower impressions (221) folding tangent with the third sideline (2211) of lower impressions (221)
4th circular arc line (232) of corner and the 4th sideline (2212) on lower impressions (121) are tangent, and the 4th circular arc line (232)
The center of circle be located between third circular arc line (231) and the center of circle of third circular arc line (231), the 4th circular arc line (232) and third circle
The distance of center circle D2 of camber line (231) is identical as the distance of center circle D1, and the 4th circular arc line (232) mutually cuts shape with lower impressions (221)
Cambered surface (236) are cut at second.
2. the mold of manufacture motor vehicle seat back endless tube as described in claim 1, it is characterised in that: the upper mold (1) includes
Mo(u)ld top half cavity layer (12) and upper bearing course (11), the lower die (2) include mo(u)ld bottom half cavity layer (22) and lower bearing course (21)；The mo(u)ld top half
Chamber (121) is arranged on the mo(u)ld top half cavity layer (12), and the lower impressions (221) are arranged on the mo(u)ld bottom half cavity layer (22)；It is described
The first buffer spring (18) are housed between mo(u)ld top half cavity layer (12) and the upper bearing course (11), the mo(u)ld bottom half cavity layer (22) and described
The second buffer spring (28) are housed between lower bearing course (21).
3. the mold of manufacture motor vehicle seat back endless tube as claimed in claim 2, it is characterised in that: the mo(u)ld top half cavity layer (12)
There are four the first buffer spring (18) for dress between the upper bearing course (11), and four the first buffer springs (18) are in upper bearing course
(11) be square distribution on lower end surface, and the rectangular geometric center and upper pressure-bearing that four the first buffer springs (18) are constituted
The geometric center of layer (11) is overlapped；There are four the second buffering elastics for dress between the mo(u)ld bottom half cavity layer (22) and the lower bearing course (21)
Spring (28), four the second buffer springs (28) are square distribution on the upper surface of lower bearing course (21), and four second bufferings
The rectangular geometric center that spring (28) is constituted is overlapped with the geometric center of lower bearing course (21).
4. the mold of manufacture motor vehicle seat back endless tube as claimed in claim 3, it is characterised in that: the upper impression (121)
Four folding corners there is the upper bending slot (122) through its upper and lower end face, upper bending is housed in the upper bending slot (122)
Block (13) has upper bending-type chamber (133) on the upper folded block (13), and described first, which cuts cambered surface (136), is located at the upper folding
On curved chamber (133), the upper folded block (13) is fixedly connected with the upper bearing course (11) by screw；The lower impressions
(221) four folding corners have the lower bending slot (222) through its upper and lower end face, are equipped in the lower bending slot (222)
Lower folded block (23) has lower bending-type chamber (233) on the lower folded block (23), and described second, which cuts cambered surface (236), is located at institute
It states on lower bending-type chamber (233), lower folded block (23) is fixedly connected with lower bearing course (21) by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326492.6A CN109940095B (en) | 2019-04-23 | 2019-04-23 | Mould for manufacturing automobile seat backrest ring pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326492.6A CN109940095B (en) | 2019-04-23 | 2019-04-23 | Mould for manufacturing automobile seat backrest ring pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109940095A true CN109940095A (en) | 2019-06-28 |
| CN109940095B CN109940095B (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910326492.6A Active CN109940095B (en) | 2019-04-23 | 2019-04-23 | Mould for manufacturing automobile seat backrest ring pipe |
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| Country | Link |
|---|---|
| CN (1) | CN109940095B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117161761A (en) * | 2023-10-16 | 2023-12-05 | 广东弘锦科技有限公司 | Seat return bend manufacturing system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062871A (en) * | 1990-12-27 | 1992-07-22 | 伯特兰德·弗尔汽车公司 | The skeleton of automotive seat component, and manufacturing method and apparatus |
| PL189953B1 (en) * | 1999-10-23 | 2005-10-31 | Jerzy Janik | Method of and apparatus for bending shapes, in particular hollow tubular ones, at their ends and anywhere over their length |
| ATE370007T1 (en) * | 2002-05-16 | 2007-09-15 | Accra Teknik Ab | STABILIZER AND METHOD FOR PRODUCING THE SAME |
| CN105195622A (en) * | 2015-10-26 | 2015-12-30 | 浙江志达管业有限公司 | Pipe bend punch-forming die |
| CN208321836U (en) * | 2018-05-25 | 2019-01-04 | 上和汽车部件(宁波)有限公司 | A kind of air inlet pipe pipe embryo forming mould |
-
2019
- 2019-04-23 CN CN201910326492.6A patent/CN109940095B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062871A (en) * | 1990-12-27 | 1992-07-22 | 伯特兰德·弗尔汽车公司 | The skeleton of automotive seat component, and manufacturing method and apparatus |
| PL189953B1 (en) * | 1999-10-23 | 2005-10-31 | Jerzy Janik | Method of and apparatus for bending shapes, in particular hollow tubular ones, at their ends and anywhere over their length |
| ATE370007T1 (en) * | 2002-05-16 | 2007-09-15 | Accra Teknik Ab | STABILIZER AND METHOD FOR PRODUCING THE SAME |
| CN105195622A (en) * | 2015-10-26 | 2015-12-30 | 浙江志达管业有限公司 | Pipe bend punch-forming die |
| CN208321836U (en) * | 2018-05-25 | 2019-01-04 | 上和汽车部件(宁波)有限公司 | A kind of air inlet pipe pipe embryo forming mould |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117161761A (en) * | 2023-10-16 | 2023-12-05 | 广东弘锦科技有限公司 | Seat return bend manufacturing system |
| CN117161761B (en) * | 2023-10-16 | 2024-02-27 | 广东弘锦科技有限公司 | Seat return bend manufacturing system |
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| Publication number | Publication date |
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| CN109940095B (en) | 2020-11-03 |
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