CN111515281A - Machining process for long slide rail of automobile seat - Google Patents
Machining process for long slide rail of automobile seat Download PDFInfo
- Publication number
- CN111515281A CN111515281A CN202010329188.XA CN202010329188A CN111515281A CN 111515281 A CN111515281 A CN 111515281A CN 202010329188 A CN202010329188 A CN 202010329188A CN 111515281 A CN111515281 A CN 111515281A
- Authority
- CN
- China
- Prior art keywords
- upper rail
- rail
- bending
- edge
- lower rail
- 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
Links
Images
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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a processing technology of a long slide rail of an automobile seat, which comprises the steps of S1, blanking, S2, stamping, S3, bending of an upper rail, S4, forming of the upper rail, S5, bending of a lower rail, S6, forming of the lower rail, S7, fine adjustment, S8, assembling, blanking of an outer rail of the slide rail by a die, forming of six bending in total, blanking of an inner rail by the die, and bending of eight bending in total.
Description
Technical Field
The invention relates to the field of automobile accessories, in particular to a processing technology of a long sliding rail of an automobile seat.
Background
MPV is a multipurpose automobile, and integrates the functions of a car, a station wagon and a van. 7-8 seats for people can be arranged in the carriage, and a certain luggage space is also provided. The seat is flexible in arrangement, can be completely folded or laid down, and can be moved forwards, backwards, leftwards and rightwards or even rotated. MPV-type utility vehicles have become a new family consumer of vehicles. MPVs are vehicle types mainly intended for home users, and those passenger vehicles for group customers, which are modified from commercial van vehicles, cannot be calculated as real MPVs. The space of the MPV is relatively larger than that of a car with the same displacement, and the MPV has a size fraction, but is not as thin as the car.
The automobile share of MPV in domestic market is rising year by year, and the seat slide rail is diversified. The MPV type seat slide rail has the influence of larger manufacturing error because the length of the inner rail and the outer rail is too long, especially the straightness of the long outer rail determines that the gap between the inner rail and the outer rail is changed within a certain range, the Z-direction gap can be eliminated by adopting the ball combination, and the Y-direction gap cannot be eliminated, so that the inner rail and the outer rail still have larger gaps, and the MPV type seat slide rail can generate larger shaking during use, thereby generating abnormal sound and failing to meet the requirement of people on riding comfort.
Because the length of the lower rail is mostly larger than 800mm, the extra-outer rail is mostly formed by rolling, so that the processing is difficult, the size and the straightness are difficult to control, and the raw materials in different batches also bring the difficulty of adjustment; due to the limitation of the manufacturing process, the fixed roller cannot achieve the good effect of absorbing the upper gap and the lower gap, the gap elimination effect between the inner rail and the outer rail is poor, great shaking can be generated during use, abnormal sound can be generated, and the requirement of people on riding comfort cannot be met.
Disclosure of Invention
The invention aims to provide a processing technology of a long slide rail of an automobile seat, and the processing technology is used for solving the technical problems in the technical background.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a processing technology for a long slide rail of an automobile seat comprises the following steps:
step S1: blanking, namely respectively carrying out die stamping and blanking on the upper rail and the lower rail to manufacture an upper rail blank and a lower rail blank;
step S2: stamping, namely performing edge cutting groove and punching treatment on the upper rail blank and the lower rail blank in the step S1;
step S3: bending the upper rail, namely positioning and fixing the middle part of the upper rail blank in the step S2, and bending one side of the upper rail blank for four times by using a numerical control bending machine;
step S4: forming the upper rail, namely repeating the operation step S3 on the other side of the upper rail blank to manufacture an axially symmetrical upper rail intermediate piece;
step S5: bending the lower rail, namely positioning and fixing the middle part of the lower rail blank in the step S2, and respectively bending two sides of the lower rail blank for three times by using a numerical control bending machine;
step S6: forming a lower rail, namely repeating the operation step S5 on the other side of the lower rail blank to manufacture an axially symmetrical lower rail intermediate piece;
step S7: fine adjustment, namely detecting and fine adjusting the upper rail intermediate piece in the step S4 and the lower rail intermediate piece in the step S6 according to the size and symmetry to prepare an upper rail finished product and a lower rail finished product;
step S8: and assembling, namely sleeving the upper rail finished product and the lower rail finished product in the step S7, and matching with the balls for sliding to manufacture a long slide rail finished product.
Further, the fourth-time bending step in step S3 is specifically to input one end of the upper rail blank into a numerical control bending machine, bend the edge of one end of the upper rail blank downwards into a first upper rail oblique bending edge, continue to input a first distance, bend the first upper rail right-angle bending edge in a reverse direction, bend the third upper rail right-angle bending edge in a same direction as the first upper rail right-angle bending edge after continuing to input a first distance, and bend the third upper rail right-angle bending edge in a reverse direction and a fourth time with the second upper rail right-angle bending edge after continuing to input a first distance.
Further, the fourth-time bending step in step S4 is specifically to input the other end of the upper rail blank into a numerical control bending machine, bend the edge of one end of the upper rail blank downwards into an upper rail oblique bending edge two, continue to input a distance, bend the upper rail right-angle bending edge four in a reverse direction, bend the upper rail right-angle bending edge five in a third direction in the same direction as the upper rail right-angle bending edge four after continuing to input a distance, and bend the upper rail right-angle bending edge six in a reverse direction and the upper rail right-angle bending edge five after continuing to input a distance.
Further, in the radial cross section of the upper rail finished product, the first upper rail inclined bending edge and the second upper rail inclined bending edge are axisymmetric and isometric, the first upper rail right-angle bending edge and the fourth upper rail right-angle bending edge are parallel and isometric, and the second upper rail right-angle bending edge and the fifth upper rail right-angle bending edge are in the same plane and isometric.
Further, in the upper rail finished product, the contained angle between upper rail oblique bending limit one and upper rail oblique bending limit two and the horizontal plane is 45 and length between them is 3mm, the length of upper rail right angle side one and upper rail right angle side four of bending is 9mm, the length of upper rail right angle side two and upper rail right angle side five of bending is 7mm, the length of upper rail right angle side three and upper rail right angle side six of bending is 29mm, the farthest distance between upper rail oblique bending limit one and upper rail oblique bending limit two is 46.1 mm.
Further, the third bending step in step S5 is specifically to input one end of the lower rail blank into a numerical control bending machine, where the numerical control bending machine bends one end of the lower rail blank upwards into a first lower rail right-angle bending edge, bends the first lower rail right-angle bending edge again after continuing to input a certain distance, and bends the second lower rail right-angle bending edge again after continuing to input a certain distance.
Further, the third bending step in step S6 is specifically to input the other end of the lower rail blank into a numerical control bending machine, where the numerical control bending machine bends one end of the lower rail blank upwards to form a fourth lower rail right-angle bending edge, bends the fourth lower rail right-angle bending edge again after continuously inputting a certain distance, and bends the fifth lower rail right-angle bending edge again after continuously inputting a certain distance.
Further, in the off-the-shelf radial cross-section of lower rail, lower rail right angle limit one, lower rail right angle limit three, lower rail right angle limit four and lower rail right angle limit six parallels of bending, lower rail right angle limit one and lower rail right angle limit four isometric of bending, lower rail right angle limit three and lower rail right angle limit six isometric of bending, lower rail right angle limit two and lower rail right angle limit five of bending are in the coplanar and isometric.
Further, in the lower rail finished product, the length of lower rail right angle side one and lower rail right angle side four of bending is 14mm, lower rail right angle side two and lower rail right angle side five of bending length between be 10mm, lower rail right angle side three and lower rail right angle side six of bending length are 25mm, lower rail right angle side one and lower rail right angle are bent the distance between the side four and are 31mm, lower rail right angle is bent the distance between side three and lower rail right angle side six and is 51 mm.
By adopting the technical scheme, the outer rail of the slide rail is formed by blanking through the die and bending six times in total, the inner rail is formed by blanking through the die and bending eight times in total, the position degree of all hole positions of the slide rail is better ensured than that of a rolling process, the problem of opening the side window of the outer rail in a rolling mode is also solved, the bending straightness after blanking through the die is better, the structure is simple and stable, the manufacture is convenient, the gap eliminating effect is good, and the production and the installation are convenient.
Drawings
FIG. 1 is a process step diagram of the rail mounting of the present invention;
FIG. 2 is a process step diagram of the lower rail of the present invention;
FIG. 3 is a schematic view of the assembly of the upper and lower rails of the present invention;
in the figure, 11-upper rail blank, 12-upper rail right-angle bending side one, 13-upper rail right-angle bending side one, 14-upper rail right-angle bending side two, 15-upper rail right-angle bending side three, 16-oblique bending side two, 17-upper rail right-angle bending side four, 18-upper rail right-angle bending side five, 19-upper rail right-angle bending side six, 21-lower rail blank, 22-lower rail right-angle bending side one, 23-lower rail right-angle bending side two, 24-lower rail right-angle bending side three, 25-lower rail right-angle bending side four, 26-lower rail right-angle bending side five, 27-lower rail right-angle bending side six.
Detailed Description
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
The following further describes embodiments of the present invention with reference to fig. 1-3. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The invention provides a processing technology of a long slide rail of an automobile seat, which comprises the following steps:
step S1: blanking, namely respectively carrying out die stamping and blanking on the upper rail and the lower rail to manufacture an upper rail blank 11 and a lower rail blank 21.
Step S2: and (4) stamping, namely performing trimming groove and punching treatment on the upper rail blank 11 and the lower rail blank 21 in the step S1.
Step S3: and (4) bending the upper rail, positioning and fixing the middle part of the upper rail blank 11 in the step S2, and bending one side of the upper rail blank 11 for four times by using a numerical control bending machine, specifically, inputting one end of the upper rail blank 11 into the numerical control bending machine, bending one end edge of the upper rail blank 11 downwards into a first upper rail inclined bending edge 12, continuously inputting a distance for a reverse time to bend into a first upper rail right-angle bending edge 13, continuously inputting a distance for a third time to bend into a second upper rail right-angle bending edge 14 in the same direction as the first upper rail right-angle bending edge 13, and continuously inputting a distance for a fourth time to bend into a third upper rail right-angle bending edge 15 in the reverse direction with the second upper rail right-angle bending edge 14.
Step S4: and (3) upper rail forming, repeating the operation step of S3 on the other side of the upper rail blank 11 to manufacture an axially symmetrical upper rail intermediate part, specifically, inputting the other end of the upper rail blank 11 into a numerical control bending machine, bending one end edge of the upper rail blank 11 downwards into an upper rail oblique bending edge two 16, continuously inputting a distance in a reverse direction, bending the upper rail oblique bending edge two 17 into an upper rail right-angle bending edge four 17, continuously inputting a distance in a reverse direction, bending the upper rail oblique bending edge two 18 into an upper rail right-angle bending edge five 18 in the same direction as the upper rail right-angle bending edge four 17 in a third time, and continuously inputting a distance in a reverse direction, bending the upper rail oblique bending edge five 18 into an upper rail right-angle bending.
Step S5: and (4) bending the lower rail, namely positioning and fixing the middle part of the lower rail blank 21 in the step S2, and respectively bending two sides of the lower rail blank 21 for three times by using a numerical control bending machine, specifically, inputting one end of the lower rail blank 21 into the numerical control bending machine, upwards bending one end of the lower rail blank 21 into a lower rail right-angle bending edge I22 by using the numerical control bending machine, continuously inputting a distance, bending the lower rail right-angle bending edge II 23 again, and continuously inputting a distance, and bending the lower rail right-angle bending edge III 24 again.
Step S6: and (3) lower rail forming, namely repeating the operation step S5 on the other side of the lower rail blank 21 to manufacture an axially symmetrical lower rail intermediate part, specifically, inputting the other end of the lower rail blank 21 into a numerical control bending machine, upwards bending one end of the lower rail blank 21 into a lower rail right-angle bending edge four 25 by the numerical control bending machine, continuously inputting a distance, bending the lower rail right-angle bending edge five 26 again, and continuously inputting a distance, bending the lower rail right-angle bending edge six 27 again.
Step S7: and (4) fine adjustment, namely detecting and fine adjusting the upper rail intermediate piece in the step S4 and the lower rail intermediate piece in the step S6 according to the size and symmetry to prepare an upper rail finished product and a lower rail finished product.
Step S8: and assembling, namely sleeving the upper rail finished product and the lower rail finished product in the step S7, and matching with the balls for sliding to manufacture a long slide rail finished product.
In the radial cross section of the upper rail finished product, the first upper rail inclined bending edge 12 and the second upper rail inclined bending edge 16 are axisymmetric and isometric, the first upper rail right-angle bending edge 13 and the fourth upper rail right-angle bending edge 17 are parallel and isometric, the second upper rail right-angle bending edge 14 and the fifth upper rail right-angle bending edge 18 are in the same plane and isometric, and the third upper rail right-angle bending edge 15 and the sixth upper rail right-angle bending edge 19 are parallel and isometric.
Wherein, in the upper rail finished product, the contained angle between upper rail oblique bending limit one 12 and upper rail oblique bending limit two 16 and the horizontal plane is 45 and length between them is 3mm, the length of upper rail right angle bending limit one 9 and upper rail right angle bending limit four 17 is 9mm, the length of upper rail right angle bending limit two 14 and upper rail right angle bending limit five 18 is 7mm, the length of upper rail right angle bending limit three 15 and upper rail right angle bending limit six 19 is 29mm, the farthest distance between upper rail oblique bending limit one 12 and upper rail oblique bending limit two 16 is 46.1mm
Wherein, in the off-the-shelf radial cross section of lower rail, lower rail right angle limit one 22, lower rail right angle limit three 24, lower rail right angle limit four 25 and lower rail right angle limit six 27 parallels of bending, lower rail right angle limit one 22 and lower rail right angle limit four 25 are isometric, lower rail right angle limit three 24 and lower rail right angle limit six 27 are isometric, lower rail right angle limit two 23 and lower rail right angle limit five 26 are in the coplanar and isometric.
Wherein, in the lower rail finished product, the length of lower rail right angle side one 22 and the four 25 on lower rail right angle side of bending is 14mm, the length of lower rail right angle side two 23 and the five 26 on lower rail right angle side of bending is 10mm, the length of lower rail right angle side three 24 and the six 27 on lower rail right angle side of bending is 25mm, the distance between lower rail right angle side one 22 and the four 25 on lower rail right angle side of bending is 31mm, the distance between lower rail right angle side three 24 and the six 27 on lower rail right angle side of bending is 51 mm.
The outer rail of the slide rail is formed by die blanking and six bending in all, the inner rail is formed by die blanking and eight bending in all, the position degree of all hole positions of the slide rail is better ensured compared with a rolling process, the problem of opening a side window of the rolled outer rail is also solved, the bending straightness after die blanking is better, the structure is simple and stable, the manufacture is convenient, the gap eliminating effect is good, and the production and the installation are convenient.
The embodiments of the present invention have been described in detail with reference to fig. 1 to 3, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A processing technology for a long slide rail of an automobile seat is characterized by comprising the following steps:
step S1: blanking, namely respectively carrying out die stamping and blanking on the upper rail and the lower rail to manufacture an upper rail blank and a lower rail blank;
step S2: stamping, namely performing edge cutting groove and punching treatment on the upper rail blank and the lower rail blank in the step S1;
step S3: bending the upper rail, namely positioning and fixing the middle part of the upper rail blank in the step S2, and bending one side of the upper rail blank for four times by using a numerical control bending machine;
step S4: forming the upper rail, namely repeating the operation step S3 on the other side of the upper rail blank to manufacture an axially symmetrical upper rail intermediate piece;
step S5: bending the lower rail, namely positioning and fixing the middle part of the lower rail blank in the step S2, and respectively bending two sides of the lower rail blank for three times by using a numerical control bending machine;
step S6: forming a lower rail, namely repeating the operation step S5 on the other side of the lower rail blank to manufacture an axially symmetrical lower rail intermediate piece;
step S7: fine adjustment, namely detecting and fine adjusting the upper rail intermediate piece in the step S4 and the lower rail intermediate piece in the step S6 according to the size and symmetry to prepare an upper rail finished product and a lower rail finished product;
step S8: and assembling, namely sleeving the upper rail finished product and the lower rail finished product in the step S7, and matching with the balls for sliding to manufacture a long slide rail finished product.
2. The processing technology of the long slide rail of the automobile seat as claimed in claim 1, wherein the processing technology comprises the following steps: the fourth-time bending step in step S3 is specifically to input one end of the upper rail blank into a numerical control bending machine, bend one end edge of the upper rail blank downwards into a first upper rail oblique bending edge, continue to input a first distance, bend the first upper rail right-angle bending edge in a reverse direction, bend the third upper rail right-angle bending edge in the same direction as the first upper rail right-angle bending edge after continuing to input a first distance, and bend the third upper rail right-angle bending edge in a reverse direction for the fourth time with the second upper rail right-angle bending edge after continuing to input a first distance.
3. The processing technology of the long slide rail of the automobile seat as claimed in claim 1, wherein the processing technology comprises the following steps: the fourth bending step in step S4 is specifically to input the other end of the upper rail blank into a numerical control bending machine, bend one end edge of the upper rail blank downwards into a second obliquely bent upper rail edge, continue to input a first distance, bend the second obliquely bent upper rail edge into a fourth orthogonally bent upper rail edge, continue to input a first distance, bend the third obliquely bent upper rail edge into a fifth orthogonally bent upper rail edge in the same direction as the fourth orthogonally bent upper rail edge, and continue to input a first distance, bend the fourth obliquely bent upper rail edge into a sixth orthogonally bent upper rail edge with the fifth orthogonally bent upper rail edge.
4. The processing technology of the long slide rail of the automobile seat as claimed in claim 1, wherein the processing technology comprises the following steps: the third bending step in step S5 is specifically to input one end of the lower rail blank into a numerical control bending machine, where the numerical control bending machine bends one end of the lower rail blank upwards to form a first lower rail right-angle bending edge, bends the first lower rail right-angle bending edge again after continuing to input a certain distance, and bends the second lower rail right-angle bending edge again after continuing to input a certain distance.
5. The processing technology of the long slide rail of the automobile seat as claimed in claim 1, wherein the processing technology comprises the following steps: the third bending step in step S6 is specifically to input the other end of the lower rail blank into a numerical control bending machine, where the numerical control bending machine bends one end of the lower rail blank upwards to form a fourth lower rail right-angle bending edge, bends the fourth lower rail right-angle bending edge again after continuing to input a certain distance, and bends the fifth lower rail right-angle bending edge again after continuing to input a certain distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010329188.XA CN111515281A (en) | 2020-04-23 | 2020-04-23 | Machining process for long slide rail of automobile seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010329188.XA CN111515281A (en) | 2020-04-23 | 2020-04-23 | Machining process for long slide rail of automobile seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111515281A true CN111515281A (en) | 2020-08-11 |
Family
ID=71904557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010329188.XA Pending CN111515281A (en) | 2020-04-23 | 2020-04-23 | Machining process for long slide rail of automobile seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111515281A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08197986A (en) * | 1995-01-23 | 1996-08-06 | Ikeda Bussan Co Ltd | Seat sliding device |
| CN202608593U (en) * | 2012-04-11 | 2012-12-19 | 浙江龙生汽车部件股份有限公司 | Sliding rail device for automobile seat |
| CN103286170A (en) * | 2013-06-14 | 2013-09-11 | 宜昌船舶柴油机有限公司 | Super-long double-U-shaped guide rail manufacturing method |
| CN108746335A (en) * | 2018-05-11 | 2018-11-06 | 安徽工业大学 | A kind of sliding rail of automobile seat automatic punching device |
| CN110182106A (en) * | 2019-06-04 | 2019-08-30 | 无锡锡玮科技有限公司 | A kind of automotive seat long track and its processing technology |
-
2020
- 2020-04-23 CN CN202010329188.XA patent/CN111515281A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08197986A (en) * | 1995-01-23 | 1996-08-06 | Ikeda Bussan Co Ltd | Seat sliding device |
| CN202608593U (en) * | 2012-04-11 | 2012-12-19 | 浙江龙生汽车部件股份有限公司 | Sliding rail device for automobile seat |
| CN103286170A (en) * | 2013-06-14 | 2013-09-11 | 宜昌船舶柴油机有限公司 | Super-long double-U-shaped guide rail manufacturing method |
| CN108746335A (en) * | 2018-05-11 | 2018-11-06 | 安徽工业大学 | A kind of sliding rail of automobile seat automatic punching device |
| CN110182106A (en) * | 2019-06-04 | 2019-08-30 | 无锡锡玮科技有限公司 | A kind of automotive seat long track and its processing technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11059085B2 (en) | Manufacturing method and manufacturing apparatus for press-formed article | |
| US8556222B2 (en) | Seat slide device for vehicle | |
| EP3320996B1 (en) | Method and apparatus for manufacturing press component | |
| US7673944B2 (en) | Backrest frame for a rear seat of a vehicle and a method for producing the frame | |
| CN105188982B (en) | Blank, profiled sheeting, the manufacture method of manufacturing press-molded products and manufacturing press-molded products | |
| EP2021136B1 (en) | Manufacturing process to produce a necked container | |
| US7121626B2 (en) | Headrest lock structure with lock slots, method for forming lock slots in headrest pole and method for producing headrest pole | |
| JP6638639B2 (en) | Method for manufacturing differential thickness metal sheet, method for manufacturing pressed part, and processing machine | |
| KR20160043105A (en) | Press molded product, press molded product manufacturing method, and press molded product manufacturing device | |
| JP4168590B2 (en) | Hollow rack shaft manufacturing method | |
| US20200001745A1 (en) | Seat slider device and manufacturing method thereof | |
| CN103608144A (en) | Method for producing toothing on workpiece | |
| KR101678825B1 (en) | Method for manufacturing a one-piece seat back structure | |
| US20090301245A1 (en) | Steering rack | |
| KR20110084951A (en) | One-piece seat structure and cold forming processes to create seat structures | |
| CN111515281A (en) | Machining process for long slide rail of automobile seat | |
| US9144837B2 (en) | Rolling tool, apparatus and method for the production of crowned teeth, and gear | |
| CN110538911B (en) | Aluminum strip flanging device for automobile radiator | |
| US20130248675A1 (en) | Longitudinal adjuster for a vehicle seat | |
| CN210647939U (en) | Aluminum strip flanging device for automobile radiator | |
| CN100427235C (en) | Press-formed workpiece with an increased corner portion thickness and apparatus and method for manufacture thereof | |
| CN110182106A (en) | A kind of automotive seat long track and its processing technology | |
| KR20140079949A (en) | Roll forming system and method thereof | |
| WO2006112904A1 (en) | Two-piece side and floor panel arrangement for box assembly | |
| KR20150062028A (en) | The process of manufacture of forming seat rail for vehicle by press work |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200811 |