• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Self-centering parts extractor, comprising a first spindle (1) and a second coaxial and independent spindle (2). A body (3) is screwed onto the first spindle (1). In the second spindle (2) the body (3) is fixed and carries a handle (6) screwed to said spindle, a lower ring (7) independent of the second spindle (2), and an annular support (8), also independent of the second spindle (2), which is fixed to the upper handle (6) with the faculty of free rotation on it. Between the annular support (8) and the legs (4) are linked connecting rods (9) which are related to the intermediate ring (7) through pins (13) and grooves (12). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2543281A1
    申请号:ES201530227
    申请日:2015-02-24
    公开日:2015-08-17
    发明作者:Julio SAMPEDRO MARTÍNEZ
    申请人:FORZA HERRAMIENTAS S L；FORZA HERRAMIENTAS SL；
    IPC主号:
    专利说明:

    DESCRIPTION
    Self-centering parts extractor
    Field of the Invention
    The present invention relates to a self-centering part extractor, and more specifically to a mechanical extractor designed to facilitate the extraction of parts, such as bearings, bushings, etc., which become part of countless industrial machines and equipment. .
    The extractor of the invention is of the type comprising an offset spindle in which a body is screwed, to which a series of legs that hang around the spindle are articulated. Background of the invention
    Currently there are mechanical extractors consisting of separable or interchangeable legs, for example to be able to extract pieces of different dimensions, which are fixed on a sliding fork. This fork is part of a transverse frame where a spindle is located. With the centering of the spindle and its rotation we proceed with the extraction of the pieces. This type of extractor is more basic and subsequently new extractors have been developed, such as those described in the following documents:
    ES 2042353. This patent describes a mechanical extractor comprising a body in which an offset spindle is screwed and is a carrier of a series of legs that hang around the spindle. The central body has radial arms to which, through a support, the legs are connected. Although this extractor has a good coupling between the legs and the central body and a great robustness, it presents as disadvantages the not being able to be used to extract pieces from the inside and that its centering with the piece to extract is not reliable.
    ES 2113250. An extractor is known from this patent in which each leg is associated with a radial connecting rod that links the movement of each leg with respect to eccentric points belonging to a collar that is mounted with the power to rotate and axial movement with respect to the offset spindle. With this extractor it is possible to align the spindle axis with the axis of the piece to be extracted. Each piece is connected with the ability to move to a radial arm by means of articulated flanges and each leg can move independently. A collar mounted on the drive spindle provides a coaxial guiding means to each leg. However, this extractor does not allow a simple and efficient use in the extraction process.
    Description of the invention
    The object of the present invention is an extractor of parts of the type initially exposed which, having the quality of being self-centering, achieves the movement in unison of all the legs by means of a mechanism that is regulated from the top of the extractor, allowing this mode a more simple and efficient use in the extraction of parts.
    The extractor of the invention comprises a first spindle, through which the centering is carried in the piece to be extracted, in which a body is screwed to which the legs are articulated, in number of two or more, which hang around the body, located around the spindle. On this first spindle, in the upper part thereof and in coaxial position, a second spindle is arranged, which is fixed, which is fixed by its lower end to the aforementioned body. The first and second spindles are independent and the second spindle is threaded externally.
    In the second spindle they are mounted: an upper crank that is screwed into this second spindle; a lower ring, which is freely rotatable and movable on the second spindle; and an intermediate annular support, also independent of the second spindle, on which it can rotate and move freely, and which is fixed to the upper handle with the power of free rotation but without the possibility of axial displacement with respect to it.
    To the intermediate annular support, a series of radial connecting rods are articulated at one end, in number and position coinciding with those of the legs, which hang towards said legs, to which they are articulated by their free end. The articulation axes of the connecting rods to the intermediate annular body and to the legs are parallel and perpendicular to the axis of the spindles. Each connecting rod has an intermediate longitudinal groove that is crossed by a pin integral to the lower ring. Brief description of the drawings
    Next, a series of drawings that will help to better understand the invention and that expressly relate to an embodiment thereof, which is presented as a non-limiting example thereof, is briefly described.
    -Figure 1 shows an elevation view of an extractor constituted according to the invention. -Figure 2 shows in section the same extractor, according to the cutting line II-II of figure 1. -Figure 3 shows an execution variant, corresponding to a three-legged puller. -Figure 4 represents the extractor of figure 1, in the position of maximum opening of the legs. -Figure 5 represents the extractor of figure 1 in an intermediate position for opening the legs. -Figure 6 represents the extractor of figure 1 with the legs fully closed.
    Detailed description of one embodiment
    The characteristics, operation and advantages of the extractor of the invention can be better understood with the following description of the embodiment shown in the drawings.
    In Figures 1 and 2 a two-legged puller is shown, constituted according to the invention, which comprises a first spindle (1), around which a second independent tubular spindle (2) is arranged in coaxial position which It is threaded externally. The second spindle (2) is shorter than the first spindle (1) and is arranged around the top of the first spindle (1).
    In the first spindle (1) a body (3) is screwed to which a series of legs are articulated
    (4) angularly equidistant, two in the example represented in the drawings located in diametrically opposite positions, which hang around the first spindle (1). Each leg
    (4) It is articulated to the body (3) along an axis (5) perpendicular to the spindle (1).
    The second spindle (2) is fixed at its lower end to the body (3), with no possibility of rotation or axial displacement with respect to it.
    In the second spindle (2) they are mounted:
    -A top handle (6) that is screwed onto said second spindle. -A lower ring (7), which is independent of the second spindle, so that it can rotate and move freely on it.
    -An intermediate ring support (8) that is also independent of the second spindle (2), so that it can rotate and move freely on it, but is related to the upper handle (6) with freedom of rotation but without the possibility of displacement axial with respect to it, so that when turning in one direction or another said handle (6) will drag in its axial displacement to the annular support (8).
    The extractor also comprises a series of radial connecting rods (9), in number and position coinciding with the legs (4), which are articulated by their upper end to the annular support.
    (8) and at the lower end of the opposite leg (4), through axes (10 and 11) parallel and perpendicular to the spindles.
    Each connecting rod (9) has an intermediate longitudinal groove (12), in which a pin (13) integral with the lower ring penetrates, which is movable along said groove (12).
    In Figures 1 and 2 the extractor includes two legs (4), located in diametrically opposite positions and each leg is related to the annular support (8) through a single rod. Figure 3 shows an extractor that includes three legs (4), located at 120º, using the same reference numbers to designate equivalent elements or components. In this case, each leg (4) is related to the annular support (8) through two parallel and nearby violas (9) that, as in the example of figures 1 and 2, are articulated through points coinciding with the legs (4) and annular support (8) and equipped with two longitudinal grooves (12) facing each other, crossed by as many pins (13) integral with the lower ring (7)
    With the described constitution, when turning the upper handle (6) in one direction or the other, the axial displacement of the intermediate annular support (8) (freely rotatable with respect to the upper handle (6)) that draws in the same direction is caused, ascending or descending, to the cranks
    (9) which, in turn, pull or push on the legs (4), at the same time as the pins
    (13) and the intermediate ring (7) moves, also in the same direction, safely controlling the movement of the connecting rods (9) to ensure the opening or closing of the set of legs.
    The operation of the extractor is described with reference to Figures 4 to 6. In Figure 4, with the handle (6) at the top of the second spindle (2), the legs (4) are in the position of maximum opening . Turning the handle (6) clockwise, for example manually, moves down the second spindle (2), pushing the cranks (9) in the same direction, causing the legs to swing (4) around of the articulation shaft (10). During this movement the connecting rods (9) move and partially swing on the shafts (10), movements that are controlled by means of the grooves (12) and pins (13), by supporting the longitudinal edges of said grooves on the pins, pushing them in downward direction and also moving downwardly the lower ring (7).
    When moving all the connecting rods (9) in unison, with displacement and tilting on the axles (10 and 11), they cause the progressive closing of all the legs, figure 5, until the total closing of the legs, figure 6.
    When the lower ring (7) reaches its lower point, figure 6, it stops with the body (3) and the upper handle (6) is prevented from being able to continue the rotation in the same direction.
    To proceed with the opening of the legs (4), the described process is reversed, turning the upper handle (6) counterclockwise.
    The drive of the extractor of the invention could be carried out automatically, for example by hydraulic systems.
    The movement of the legs (4), from the upper handle (6), is transmitted through the connecting rods (9) and is controlled by the action of the pins (13) on the edges of the grooves (12) . The arrangement of the connecting rods (9) is applicable, whatever the number of legs (4) of the extractor.
    The use of two spindles in the extractor of the invention, with the positioning of the second spindle (2) with respect to the first, allows both spindles to be easily accessible, which facilitates the possibility of connecting the extractor to hydraulic drive systems.
    The body (3) can be formed by two independent pieces, by way of semi-rings, 5 joined together, with interposition of the legs (4) in the case of a two-legged puller, figure 1, or by three pieces united in the same way, in the case of three legs, figure 3.
    The legs (4) have a longitudinal bending (14), close to the point of articulation (5) with the body (3), in coincidence with whose bending the joint axis (11) is located between legs (4) and connecting rods ( 9).
    10 The legs (4) can also be topped with extreme nails (15), directed inwards.
    权利要求:
    Claims (2)
    [1]
    1.-Self-centering parts extractor, comprising a first spindle (1) in which a body (3) is screwed to which a series of legs (4) that hang around the first spindle (1) are articulated, characterized because it also comprises a second externally threaded tubular spindle (2) 5, coaxial with the first spindle and independent of it, which is fixed at its lower end to the body (3) and has an upper handle mounted above said body (6), screwed on the second spindle (2); a lower ring (7) freely rotatable and movable on the second spindle (2); and an intermediate annular support (8) that is fixed to the upper handle (6), with the power of free rotation thereon, which is independent
    10 of the second spindle (2) and can rotate and move freely thereon; whose annular support (8) has a series of radial connecting rods (9) articulated, in number and position coinciding with the legs (4), each of whose connecting rods is articulated by its free end to the opposite leg (4) and has an intermediate longitudinal groove (12) that is crossed by a pin (13) integral with the lower ring (7).
    2. Extractor according to claim 1, characterized in that the legs (4) have, near the point of articulation (5) with the body (3), a bend (14) in coincidence with which the articulation axis is located (11) between said legs and the connecting rods (9).
    [3]
    3. Extractor according to claim 1, characterized in that each leg (4) is related to the annular support (8) through a single connecting rod (9).
    4. Extractor according to claim 1, characterized in that each leg (4) is related to the annular support (8) through two parallel and close rods, articulated through points coinciding with the legs (4) and annular support (8) and equipped with two longitudinal grooves facing each other crossed by many other pins (13) integral with the lower ring (7).
    6
    类似技术:
    公开号 | 公开日 | 专利标题
    ES2543281A1|2015-08-17|Self-centering parts extractor |
    TWI584923B|2017-06-01|End effector, industrial robot, and operation method thereof
    JP2009297886A|2009-12-24|Workpiece gripping device
    ES2094483T3|1997-01-16|TRACTION DEVICE.
    RU2016140479A|2018-04-18|Socket fusion fixture
    ES2404666T1|2013-05-28|Simulator
    JP2014073554A|2014-04-24|Rotating shaft, and industrial robot comprising the same
    KR102025416B1|2019-09-25|Articulated structure of a multiple-axis robot and robot comprising such a structure
    CN107104399B|2018-11-16|A kind of cable combination docking facilities
    EP0521581A1|1993-01-07|Automatic device for gas cylinder cap placing and prescrewing, in particular for liquefied petroleum gas cylinders
    CN104015226A|2014-09-03|Pipe fitting punching machine
    CN204299506U|2015-04-29|A kind ofly add lever apparatus and there is this derrick adding lever apparatus
    JP6568394B2|2019-08-28|Nutrunner system
    PE20181201A1|2018-07-23|DRILL ROD HOLDING SYSTEM AND METHODS FOR USING IT
    CN104440933B|2016-06-08|A kind of pivotal automatic bottle catching mechanical hand
    US1385542A|1921-07-26|Machine for bending rods, bars, or the like
    US2594028A|1952-04-22|Chuck mechanism
    CN209395287U|2019-09-17|A kind of link mechanism in punching machine
    US1092940A|1914-04-14|Globe-manipulator.
    US2032689A|1936-03-03|Lamp wrench
    ES2336517B2|2011-01-31|KEY EXTRACTION MACHINE.
    DE PERFILES2019|Fortalezas.
    BR112017001660A2|2018-01-30|? drilling rig, and drilling machine tool?
    KR101762767B1|2017-08-04|Handrail
    US932989A|1909-08-31|Pipe-cutting machine.
    同族专利:
    公开号 | 公开日
    EP3266566B1|2021-08-11|
    ES2543281B1|2016-05-30|
    EP3266566A4|2018-11-21|
    WO2016135367A1|2016-09-01|
    EP3266566A1|2018-01-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1470310A|1922-06-28|1923-10-09|Ernest E Winchell|Wheel and gear remover|
    US1682956A|1926-11-10|1928-09-04|Vernon B Dawson|Gripping and pulling implement|
    US4068365A|1977-02-14|1978-01-17|Brandt Paul W|Locking puller device|
    US5174005A|1992-06-08|1992-12-29|Somerville Dean S|Locking puller device|
    US5557833A|1995-02-22|1996-09-24|Lisle Corporation|Puller Device|
    US7669306B2|2007-12-04|2010-03-02|Waldemar Palka|Gear puller|US11084152B2|2019-04-29|2021-08-10|Julio Sampedro Martinez|Mechanical device self-centering gear extractor|
    CN110181457A|2019-05-23|2019-08-30|天津蓝巢电力检修有限公司|Air-introduced machine sliding block removal tool|
    法律状态:
    2016-05-30| FG2A| Definitive protection|Ref document number: 2543281 Country of ref document: ES Kind code of ref document: B1 Effective date: 20160530 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201530227A|ES2543281B1|2015-02-24|2015-02-24|Self-centering parts extractor|ES201530227A| ES2543281B1|2015-02-24|2015-02-24|Self-centering parts extractor|
    PCT/ES2016/070182| WO2016135367A1|2015-02-24|2016-03-17|Self-centering part extractor|
    EP16754801.5A| EP3266566B1|2015-02-24|2016-03-17|Self-centering part extractor|
    [返回顶部]