EP4347455A1 - Vorrichtung und verfahren zur vereinzelung von schenkeldrehfedern - Google Patents
Vorrichtung und verfahren zur vereinzelung von schenkeldrehfedernInfo
- Publication number
- EP4347455A1 EP4347455A1 EP22718059.3A EP22718059A EP4347455A1 EP 4347455 A1 EP4347455 A1 EP 4347455A1 EP 22718059 A EP22718059 A EP 22718059A EP 4347455 A1 EP4347455 A1 EP 4347455A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- torsion springs
- mandrel
- coil core
- leg
- driver
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/04—Devices for feeding articles or materials to conveyors for feeding articles
- B65G47/06—Devices for feeding articles or materials to conveyors for feeding articles from a single group of articles arranged in orderly pattern, e.g. workpieces in magazines
Definitions
- the invention relates to a method for separating leg torsion springs and a device suitable for carrying out such a separating method.
- the device should be able to be used in production lines for the assembly of electromechanical functional units and comprises a storage container, which is a drum that can be rotated about its central axis. In the central area of its rotation circumference, the reservoir has a continuously circumferential slot opening, which ensures that the spiral springs can get into a guide channel of a stator device. From the guide channel, the spiral springs reach a discharge channel, with two sensor devices being connected upstream of the discharge channel. The sensor devices are linked to a control device, which activates a so-called selection control in such a way that the individual coil springs to be used reach a receiving device.
- the selection control feeds the corresponding parts to a collection container, which receives those parts that are to be removed from the manufacturing process.
- a device described in DE 3641 359 A1 for automatically arranging and separating coil springs comprises a rotatable drum with a longitudinal axis inclined downwards. Inside the drum are two rollers with a comparatively small diameter, with a thread-like structure on one of the rollers making a significant contribution to conveying and separating the coil springs. On the inner peripheral surface of the drum there are driver elements which take the helical springs with them a little when the drum rotates, at most about half a revolution of the drum, and allow them to fall onto the rollers.
- Another device for separating and feeding assembly parts, in particular springs is disclosed in DE 3321 173 A1. In this case, two loosening devices are provided for moving chunks of assembly parts relative to a housing wall.
- a system for feeding connecting elements to a device for inserting and/or fastening the connecting elements in workpieces is described in DE 197 56 798 A1.
- This system may include flexible delivery.
- a reloading and separating device, to which the flexible supply is connected, is operated with compressed air.
- a device for separating springs described in EP 1 348 650 A1 works with an air stream.
- DE 31 42 282 A1 describes a device for separating springs, which includes a magnet.
- a conveying device for piece goods, in particular screws or bolts described in DE 10 2010 021 474 A1
- the parts to be conveyed are pulled out of a container by magnetic force, with several magnets being attached to a chain as an endless conveying device.
- leg torsion springs Possible applications of leg torsion springs are described in the documents DE 2044 579 C3 and DE 101 10 367 A1.
- torsion springs In contrast to compression springs designed as helical springs, torsion springs have, in addition to an area describing a thread shape, typically non-curved sections adjoining this area on both sides, which are intended to use the spring to exert a torque between two components that can be rotated in opposite directions, with the Pivot axis between the two components of the central axis of the coiled portion of the leg torsion spring corresponds.
- the invention is based on the object compared to the prior art to specify further developed methods for separating leg torsion springs, where a particularly favorable relationship between equipment and process safety is sought.
- the separating device comprises a mandrel on which several leg torsion springs can be provided, a cylinder for advancing the leg torsion springs on the mandrel, a fixed coil core arranged in a straight extension of the mandrel, the thread pitch of which is matched to the geometry of the leg torsion springs, and a the helical core concentrically surrounding, rotatable driver, which is designed for individually screwing the torsion springs onto the helical core.
- the helical core represents a negative form of the torsion springs.
- the separating device is thus suitable for handling leg torsion springs, which are already in the correct alignment on the mandrel, but can still be partially plugged into one another or screwed into one another.
- the separating device is oriented vertically, where the workpieces, that is torsion springs, are conveyed from bottom to top.
- the assembly which includes the filament core and the rotatable driver, is also referred to as a handling assembly.
- the coil core is preferably dimensioned in such a way that the leg torsion springs can be screwed onto its thread without deformation, in particular with play.
- the thread pitch of the helical core can deviate slightly from the thread pitch of the torsion springs, resulting in a targeted tightening of the torsion springs on the helical core, the further a torsion spring is screwed from the driver onto the helical core.
- leg torsion springs based on the provision of a vertically oriented mandrel, on which numerous leg torsion springs are impaled in an at least partially overlapping manner, takes place in the following manner:
- a handling assembly which is formed by a coil core, which has a thread that reproduces the shape of the leg torsion springs, and a rotatable driver surrounding the coil core concentrically,
- the handling assembly is positioned on the mandrel
- the top torsion spring is screwed onto the helical core by rotating the driver, with the next torsion spring initially remaining on the mandrel and being the top spring for the next individualization.
- a leg torsion spring can be screwed onto the coil core, for example, until a stop position is reached.
- a sensor system that detects whether and to what extent a leg torsion spring is screwed onto the coil core can also be used.
- the handling assembly can be separated from the mandrel after screwing the top leg torsion spring onto the coil core, with the same leg torsion spring being separated again from the handling assembly by screwing it off from the coil core by means of the driver at a later point in time.
- the torsion spring is transferred to a further device, for example an assembly machine, after it has been unscrewed from the coil core in a defined angular orientation, based on a rotation of the torsion spring about its own axis of symmetry.
- the coil core has an outer diameter that is larger than the smallest inner diameter of the driver. Since with is in particular a plain bearing of the rotatable driver by the Wen delkern realized when securing the driver relative to the coil core in the axial direction.
- the handling assembly After the handling assembly has been removed from the mandrel, the handling assembly can be fed to an assembly position in any orientation.
- the isolated leg torsion spring can remain continuously in the vertical direction. It is also possible, after the handling assembly has been lifted off the mandrel, to transfer the leg torsion spring manually or automatically into a horizontal or oblique alignment. In any case, the thread structure of the helical core ensures that the leg torsion spring cannot unintentionally become detached from the handling assembly.
- FIG. 1 shows a device for separating leg torsion springs in a partially schematic view.
- a separating device identified overall by the reference number 1, is provided for the purpose of individually removing torsion springs 3, which are located on a mandrel 2, from the mandrel 2.
- the mandrel 2 is made out of cardboard in the present case.
- this one Handling assembly 7 placed, which includes a fixed coil core 8 and a rotatable driver 13.
- each leg torsion spring 3 has a winding portion 4 in which it is wound helically with a constant pitch.
- the winding area 4 ends at both ends in the form of a leg 5, 6, which is directed outwards.
- the entire separating device 1 has a vertically aligned central axis MA, which corresponds to the axis of symmetry of the dome 2 and the handling assembly 7 .
- the helical core 8 is placed directly onto the mandrel 2, with a small distance between the helical core 8 and the mandrel 2 also not being harmful.
- the coil core 8 can represent a one-piece component of the handling assembly 7, with different sections 9, 10, 11 being distinguishable from one another. Specifically, these are a threaded section 9, a guide section 10, which has a smooth cylindrical wall and connects to the threaded section 9 at the top, and a front section 11, which connects to the underside of the threaded section 9. From the front section 11 runs out in the form of a conical section 12, which facilitates the transfer of the torsion springs 3 from the mandrel 2 to the handling assembly 7.
- the driver 13 is placed concentrically over the coil core 8, with a sleeve senabites 15 surrounding the threaded portion 9.
- the height of the sleeve section 15 to be measured in the longitudinal direction of the central axis MA corresponds approximately to the height of the threaded section 9.
- the sleeve section 15 is flush with the threaded section 9.
- the sleeve section 15 merges into a bearing section 16 which, in comparison to the sleeve section 15, has a reduced inner diameter. This forms an axial bearing surface 17 with which the driver 13 rests on the threaded section 9 .
- a bore 18 which can be used for connection to other components of the handling assembly 7 which are not shown.
- torsion springs 3 are to be transferred individually from the mandrel 2 to the handling assembly 7, the entire stack of torsion springs 3 impaled on the mandrel 2 is moved in the feed direction VR, which is the alignment of the Corresponds to central axis MA, advanced, that is raised in the present case. If the stack of leg torsion springs 3 is raised far enough, the leg 5 arranged furthest up can be gripped by an engagement contour 14 which is provided by the driver 13 .
- the torsion spring 3 is screwed into the threaded section 9, which is to be understood as a negative form of the torsion spring 3, and at the same time is removed from the torsion springs 3 that are arranged further down and are still on the mandrel 2.
- the torsion spring 3 After the complete recording of the torsion spring 3 in the handling construction group 7, it can be removed from the mandrel 2.
- the torsion spring 3 can then be removed from the handling assembly 7 at a different location, also in a different alignment of the handling assembly 7, by rotating the driver 13 and, for example, transferred to an assembly machine or used directly in a device to be assembled.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding Of Articles To Conveyors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021114100.1A DE102021114100A1 (de) | 2021-06-01 | 2021-06-01 | Vorrichtung und Verfahren zur Vereinzelung von Schenkeldrehfedern |
| PCT/DE2022/100272 WO2022253379A1 (de) | 2021-06-01 | 2022-04-11 | Vorrichtung und verfahren zur vereinzelung von schenkeldrehfedern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4347455A1 true EP4347455A1 (de) | 2024-04-10 |
Family
ID=81385020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22718059.3A Pending EP4347455A1 (de) | 2021-06-01 | 2022-04-11 | Vorrichtung und verfahren zur vereinzelung von schenkeldrehfedern |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4347455A1 (de) |
| CN (1) | CN117120352B (de) |
| DE (1) | DE102021114100A1 (de) |
| WO (1) | WO2022253379A1 (de) |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2044579C3 (de) | 1970-09-09 | 1975-06-05 | Fa. Christian Geyer, 8500 Nuernberg | Gerätestecker mit Klappdeckel |
| DE3142282A1 (de) | 1981-03-30 | 1982-10-21 | Frank L. Wells Co., 53140 Kenosha, Wis. | Verfahren und vorrichtung zum vereinzeln von federn |
| JPS59149824U (ja) * | 1983-03-28 | 1984-10-06 | 三洋電機株式会社 | コイルばね分離装置 |
| DE3321173A1 (de) | 1983-06-11 | 1984-12-13 | Walter Attnang-Puchheim Sticht | Vorrichtung zum vereinzeln und gegebenenfalls zum zufuehren von montageteilen |
| JPS61203230A (ja) * | 1985-03-01 | 1986-09-09 | Aisan Ind Co Ltd | コイルばね分離装置 |
| DE3641359A1 (de) | 1986-12-03 | 1988-06-16 | Oku Automatik Otto Kurz Gmbh & | Vorrichtung zum automatischen ordnen und vereinzeln von schraubenfedern |
| DE4109194A1 (de) | 1991-03-18 | 1992-09-24 | Siemens Ag | Einrichtung zur zufuehrung von kleinteilen |
| JPH0632427U (ja) * | 1992-09-25 | 1994-04-28 | 三洋電機株式会社 | コイルばね分離装置 |
| DE19756798A1 (de) | 1997-12-19 | 1999-06-24 | Schmidt Dieter Maschbau | System zum Zuführen von Verbindungselementen |
| DE10110367A1 (de) | 2001-03-03 | 2002-09-12 | Bruno Gruber | Klemme mit Lichtemissionselement |
| FR2837188B1 (fr) | 2002-03-18 | 2004-09-10 | Tech D Automatismes Et D Ensem | Dispositif mecanique et a flux d'air combine pour le demelage de ressorts |
| JP4943789B2 (ja) * | 2006-09-14 | 2012-05-30 | セイコーエプソン株式会社 | 弾性体分離装置及び弾性体分離方法 |
| JP2009096633A (ja) * | 2007-10-16 | 2009-05-07 | Atl:Kk | バネ分離・分配装置 |
| US8079456B1 (en) * | 2008-05-30 | 2011-12-20 | Wroblewski Lucien J | Spring detangler |
| DE102010021474A1 (de) | 2010-05-25 | 2011-12-01 | Roland Gebert | Fördervorrichtung für Stückgut |
| CN202670705U (zh) * | 2012-06-08 | 2013-01-16 | 无锡同联机电工程有限公司 | 弹簧分离器 |
| US9327912B2 (en) * | 2014-03-07 | 2016-05-03 | Lucien J Wroblewski | Spring separator |
| HK1224503A2 (zh) * | 2016-08-31 | 2017-08-18 | 合益工业系统有限公司 | 一种弹簧分离送料装置及方法 |
| DE102017104111A1 (de) * | 2017-02-28 | 2018-08-30 | Scherdel Innotec Forschungs- Und Entwicklungs-Gmbh | Federanordnung mit einer Schraubenfeder und mit einem Verhakungsschutz-Element |
| CN208265301U (zh) * | 2018-05-31 | 2018-12-21 | 慕贝尔汽车部件(太仓)有限公司 | 弹簧送料装置 |
| CN110142604B (zh) * | 2019-06-09 | 2024-04-05 | 浙江联宜电机有限公司 | 箱体与转轴固定用装置 |
| CN111941042B (zh) * | 2020-07-27 | 2022-06-03 | 广州维发自动化设备有限公司 | 一种金属扭簧自动组装机构 |
| CN112233940B (zh) * | 2020-09-30 | 2024-08-20 | 奔龙自动化科技有限公司 | 一种断路器扭簧自动装配装置 |
-
2021
- 2021-06-01 DE DE102021114100.1A patent/DE102021114100A1/de active Pending
-
2022
- 2022-04-11 EP EP22718059.3A patent/EP4347455A1/de active Pending
- 2022-04-11 WO PCT/DE2022/100272 patent/WO2022253379A1/de not_active Ceased
- 2022-04-11 CN CN202280026845.0A patent/CN117120352B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN117120352B (zh) | 2026-01-06 |
| DE102021114100A1 (de) | 2022-12-01 |
| CN117120352A (zh) | 2023-11-24 |
| WO2022253379A1 (de) | 2022-12-08 |
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| DAX | Request for extension of the european patent (deleted) | ||
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