EP2759353A1 - Device for machining notches in headrest tubes - Google Patents
Device for machining notches in headrest tubes Download PDFInfo
- Publication number
- EP2759353A1 EP2759353A1 EP12830639.6A EP12830639A EP2759353A1 EP 2759353 A1 EP2759353 A1 EP 2759353A1 EP 12830639 A EP12830639 A EP 12830639A EP 2759353 A1 EP2759353 A1 EP 2759353A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support matrix
- roller holder
- tube
- roller
- motor
- 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.)
- Withdrawn
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
- B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
- B21D17/02—Forming single grooves in sheet metal or tubular or hollow articles by pressing
-
- 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
- B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
- B21D17/04—Forming single grooves in sheet metal or tubular or hollow articles by rolling
-
- 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
Definitions
- the present invention relates to a device for machining indentations, for both regulation and retention, in a tube that forms part of the frame of a vehicle headrest.
- This is the field of the present invention is that of machining means for making indentations, notches and the like in metallic tubes or structures.
- the machining of retention and regulation indentations on the headrest tube has been made using grinding means, that is, by removing material, which causes cracks and perforations in the machining area, weakness in the tube structure and the need for a subsequent polishing to remove the usual burrs produced in the grinding process.
- the device for machining indentations in headrest tubes comprises a support matrix that holds a tube in order to make indentations in it, positioned on a press that exerts a pressure on said matrix in a vertical direction such that the tube is rigidly secure in the support matrix.
- the device has a roller holder in which can turn freely at least one form roller, connected by an arm to a vertical displacement mechanism formed by a motor, an eccentric piece and a connecting rod, mechanically linked such that the roller can move up and down.
- a horizontal displacement mechanism for the support matrix consisting of a spindle coupled to the shaft of a motor, which allows the horizontal movement of the support matrix towards the roller holder.
- the device as described above eliminates the polishing process for the tube surface after machining, as no burrs are generated. This means that the tube structure is not weakened, as no cracks or perforations occur in the machining area, favouring the subsequent coating process.
- the present invention relates to a device for machining regulation indentations (2) and retention indentations (3) in a tube (1) that forms part of a frame for a vehicle headrest.
- the device has a support matrix (4), which holds the tube (1) in which the retention (2) and regulation (3) indentations will be made.
- the support matrix (4) is placed in a press (6), such as a hydraulic press, which exerts pressure on the same in a vertical direction, such that the tube (1) is rigidly secured in the support matrix (4).
- horizontal direction is used to mean that parallel to the ground, which coincides with the table or bench (17) on which the device is set.
- vertical direction is used to mean the direction perpendicular to the horizontal direction towards the ceiling.
- the device includes a roller holder (5) that is connected to a vertical displacement mechanism formed by a motor (11), an eccentric piece (9) and a connecting rod (7) mechanically interconnected, with a rotation transmission that allows upward and downward movements of said roller holder (5).
- the eccentric piece (9) is a cylindrical disc with a rotation axis displaced from its centre, to which the connecting rod (7) is hinged. In addition, said eccentric piece (9) is concentrically connected to the motor shaft (11).
- the roller holder (5) is rigidly connected to an arm (14) that in turn is hinged to the connecting rod (7). Similarly, the roller holder (5) is mounted on a vertical guide (15), placed perpendicular to the motor shaft (11).
- roller holder (5) turns freely at least one form roller (8), which has been made according to the geometry of the indentation to obtain.
- the form roller (8) is in charge of making the regulation (2) or retention (3) indentations on the surface of the tube (1).
- the support matrix (4) has a horizontal displacement mechanism formed by a spindle (12) joined with freedom to move to its rear face, which in turn is coupled to the shaft of a motor (10), such as a servomotor.
- the horizontal displacement mechanism allows the movement of the press (6), in which the support matrix (4) is placed, towards the roller holder (5) on the guides (13) placed parallel to the longitudinal axis of the spindle (12).
- the tube (1) is inserted in the support matrix (4).
- a press (6) applying about 2700 Kg in a vertical direction exerts its force on the support matrix (4) that holds the tube (1) to be machined, preventing it from moving during the process.
- the roller holder (5) has at least one roller (8) that turns freely, and initiates a rising and lowering process by means of its vertical displacement mechanism formed by the motor (11), the eccentric piece (9) and the connecting rod (7) coupled to its arm (14), and a horizontal displacement of the assembly formed by the support matrix (4) and the press (6) actuated by the spindle (12) that is coupled to the motor (10).
- This enables a gradual copying of the shape of the roller (8) on the tube (1) being machined until the desired depth is achieved.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Automatic Assembly (AREA)
- Jigs For Machine Tools (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
- The present invention relates to a device for machining indentations, for both regulation and retention, in a tube that forms part of the frame of a vehicle headrest. This is the field of the present invention is that of machining means for making indentations, notches and the like in metallic tubes or structures.
- In vehicle headrests, some indentations are made on at least one of the vertical rods that emerge from the headrest itself, in order to secure the position thereof and prevent the complete extraction of the headrest.
- Hitherto, the machining of retention and regulation indentations on the headrest tube has been made using grinding means, that is, by removing material, which causes cracks and perforations in the machining area, weakness in the tube structure and the need for a subsequent polishing to remove the usual burrs produced in the grinding process.
- The device for machining indentations in headrest tubes, according to the present invention, comprises a support matrix that holds a tube in order to make indentations in it, positioned on a press that exerts a pressure on said matrix in a vertical direction such that the tube is rigidly secure in the support matrix.
- In addition, the device has a roller holder in which can turn freely at least one form roller, connected by an arm to a vertical displacement mechanism formed by a motor, an eccentric piece and a connecting rod, mechanically linked such that the roller can move up and down.
- In addition, a horizontal displacement mechanism for the support matrix is provided consisting of a spindle coupled to the shaft of a motor, which allows the horizontal movement of the support matrix towards the roller holder.
- The combination of pressures exerted on both the support matrix that holds the tube and the roller holder, together with the upward and downward motion of the roller holder and the horizontal motion of the assembly formed by the support matrix and the press, allow making the indentations for regulation and retention, which appear on the surface of the tube with the gradual movement of at least one roller into said tube until the specified indentation is obtained.
- It can be seen that the device as described above eliminates the polishing process for the tube surface after machining, as no burrs are generated. This means that the tube structure is not weakened, as no cracks or perforations occur in the machining area, favouring the subsequent coating process.
- This specification is supplemented with a set of drawings illustrating the preferred embodiment, which are never intended to limit the invention.
-
Figure 1 shows a perspective view of a headrest tube with regulation and retention indentations made in it using the proposed device. -
Figure 2 shows a cross section of the tube offigure 1 wherein a regulation indentation has been made. -
Figure 3 shows a cross section of the tube offigure 1 wherein a retention indentation has been made. -
Figure 4 represents an elevation view of the device. -
Figure 5 represents an elevation view of the device. -
Figure 6 represents an enlarged view of the elevation shown infigure 4 . -
Figure 7 represents an enlarged view of the plan view shown infigure 5 . - In view of the foregoing and as shown in
figures 1 to 3 , the present invention relates to a device for machining regulation indentations (2) and retention indentations (3) in a tube (1) that forms part of a frame for a vehicle headrest. - As shown in
figures 4 to 7 the device has a support matrix (4), which holds the tube (1) in which the retention (2) and regulation (3) indentations will be made. The support matrix (4) is placed in a press (6), such as a hydraulic press, which exerts pressure on the same in a vertical direction, such that the tube (1) is rigidly secured in the support matrix (4). - In this description the term horizontal direction is used to mean that parallel to the ground, which coincides with the table or bench (17) on which the device is set. The term vertical direction is used to mean the direction perpendicular to the horizontal direction towards the ceiling.
- In addition, the device includes a roller holder (5) that is connected to a vertical displacement mechanism formed by a motor (11), an eccentric piece (9) and a connecting rod (7) mechanically interconnected, with a rotation transmission that allows upward and downward movements of said roller holder (5).
- The eccentric piece (9) is a cylindrical disc with a rotation axis displaced from its centre, to which the connecting rod (7) is hinged. In addition, said eccentric piece (9) is concentrically connected to the motor shaft (11).
- The roller holder (5) is rigidly connected to an arm (14) that in turn is hinged to the connecting rod (7). Similarly, the roller holder (5) is mounted on a vertical guide (15), placed perpendicular to the motor shaft (11).
- As can be seen in
figure 5 , and in greater detail infigure 7 , in the roller holder (5) turns freely at least one form roller (8), which has been made according to the geometry of the indentation to obtain. The form roller (8) is in charge of making the regulation (2) or retention (3) indentations on the surface of the tube (1). - In the case of the support matrix (4), once closed it conforms in its front face, that is, the one facing the roller holder (5), a groove (16) that allows leaving exposed the surface of the tube (1) on which the indentation (2, 3) will be made.
- In turn, the support matrix (4) has a horizontal displacement mechanism formed by a spindle (12) joined with freedom to move to its rear face, which in turn is coupled to the shaft of a motor (10), such as a servomotor. The horizontal displacement mechanism allows the movement of the press (6), in which the support matrix (4) is placed, towards the roller holder (5) on the guides (13) placed parallel to the longitudinal axis of the spindle (12).
- This horizontal displacement of the support matrix (4) towards the roller holder (5) is perpendicular to the longitudinal axis of the tube (1); the latter is in turn parallel to the axis of the form roller (8) of the roller holder (5). In this way, while this movement is taking place, together with the upward and downward movement of the roller holder (5) on the vertical guide (5), the form roller (8) of the roller holder (5) makes the indentation (2, 3) on the surface of the tube (1).
- A more detailed explanation is given below of the operation of this device for machining indentations.
- Firstly, the tube (1) is inserted in the support matrix (4). A press (6) applying about 2700 Kg in a vertical direction exerts its force on the support matrix (4) that holds the tube (1) to be machined, preventing it from moving during the process.
- Next the machining process is initiated. The roller holder (5) has at least one roller (8) that turns freely, and initiates a rising and lowering process by means of its vertical displacement mechanism formed by the motor (11), the eccentric piece (9) and the connecting rod (7) coupled to its arm (14), and a horizontal displacement of the assembly formed by the support matrix (4) and the press (6) actuated by the spindle (12) that is coupled to the motor (10). This enables a gradual copying of the shape of the roller (8) on the tube (1) being machined until the desired depth is achieved.
- When the machining process is complete the roller holder (5) returns to its original position and the hydraulic press (6) that holds the tube (1) releases it. In this way, the support matrix (4) is left open, releasing the machined tube (1), with the regulation indentation (2) or retention indentation (3) made in it.
- Finally, the tube (1) is extracted from the support matrix (4) completely finished.
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES201131453A ES2401619B2 (en) | 2011-09-05 | 2011-09-05 | DEVICE FOR THE MACHINING OF ENTALLAS IN TUBOS DE REPOSACABEZAS |
PCT/ES2012/070592 WO2013034791A1 (en) | 2011-09-05 | 2012-07-30 | Device for machining notches in headrest tubes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2759353A1 true EP2759353A1 (en) | 2014-07-30 |
EP2759353A4 EP2759353A4 (en) | 2015-07-15 |
Family
ID=47831578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12830639.6A Withdrawn EP2759353A4 (en) | 2011-09-05 | 2012-07-30 | Device for machining notches in headrest tubes |
Country Status (7)
Country | Link |
---|---|
US (1) | US20140223986A1 (en) |
EP (1) | EP2759353A4 (en) |
BR (1) | BR112014006837A2 (en) |
ES (1) | ES2401619B2 (en) |
MX (1) | MX349357B (en) |
RU (1) | RU2014112767A (en) |
WO (1) | WO2013034791A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105436298A (en) * | 2015-11-27 | 2016-03-30 | 如皋市华阳铝制品有限公司 | Aluminum pipe marking press |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5857369A (en) * | 1996-12-04 | 1999-01-12 | Fang; Jui-Hwa | Method for fabricating light weight pipe connectors |
JP2002172429A (en) * | 2000-12-01 | 2002-06-18 | Nippon Spindle Mfg Co Ltd | Method and apparatus for forming cylindrically shaped material to be processed |
JP4003056B2 (en) * | 2001-10-09 | 2007-11-07 | トヨタ自動車株式会社 | Spinning molding method and spinning molding apparatus |
FR2832943B1 (en) * | 2001-12-04 | 2004-03-12 | Ressorts Lefevere | PROCESS, DEVICE FOR NOTCHING TUBES AND TUBE OBTAINED BY IMPLEMENTING THE PROCESS |
JP3464666B2 (en) * | 2002-04-12 | 2003-11-10 | 松本工業株式会社 | Pipe material dent processing method and apparatus |
US20050210947A1 (en) * | 2003-10-14 | 2005-09-29 | Yutaka Nagasono | Method and system for forming a recess in a tubular workpiece |
JP4751976B2 (en) * | 2004-03-01 | 2011-08-17 | 総和産業株式会社 | Groove processing equipment for metal pipe members |
JP4496102B2 (en) * | 2005-02-08 | 2010-07-07 | 市川鐵工株式会社 | Notch forming device for headrest stay |
KR100768389B1 (en) * | 2007-03-14 | 2007-10-18 | 최순봉 | Apparatus for working the groove of headrest stay and method thereof |
JP5094192B2 (en) * | 2007-04-16 | 2012-12-12 | 株式会社富士精機 | Headlet stay press processing method and press processing apparatus |
US8245555B2 (en) * | 2008-03-21 | 2012-08-21 | Innotec Corporation | Headrest frame and method |
-
2011
- 2011-09-05 ES ES201131453A patent/ES2401619B2/en not_active Expired - Fee Related
-
2012
- 2012-07-30 BR BR112014006837A patent/BR112014006837A2/en not_active Application Discontinuation
- 2012-07-30 RU RU2014112767/02A patent/RU2014112767A/en unknown
- 2012-07-30 US US14/342,872 patent/US20140223986A1/en not_active Abandoned
- 2012-07-30 MX MX2014002644A patent/MX349357B/en active IP Right Grant
- 2012-07-30 EP EP12830639.6A patent/EP2759353A4/en not_active Withdrawn
- 2012-07-30 WO PCT/ES2012/070592 patent/WO2013034791A1/en active Application Filing
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105436298A (en) * | 2015-11-27 | 2016-03-30 | 如皋市华阳铝制品有限公司 | Aluminum pipe marking press |
Also Published As
Publication number | Publication date |
---|---|
ES2401619A1 (en) | 2013-04-23 |
RU2014112767A (en) | 2015-10-20 |
EP2759353A4 (en) | 2015-07-15 |
ES2401619B2 (en) | 2014-10-13 |
US20140223986A1 (en) | 2014-08-14 |
MX2014002644A (en) | 2015-11-06 |
MX349357B (en) | 2017-07-07 |
WO2013034791A1 (en) | 2013-03-14 |
BR112014006837A2 (en) | 2017-06-13 |
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RA4 | Supplementary search report drawn up and despatched (corrected) |
Effective date: 20150615 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: A47C 7/38 20060101ALN20150609BHEP Ipc: B21D 17/04 20060101AFI20150609BHEP |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20160202 |