• 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:
    Es wird ein Verfahren zum Herstellen eines Kommutatorsegmentringes vorgeschlagen, das zum Umformen eines ringförmigen Rohlings (1) in den Kommutatorsegmentring (2) dient. Das Verfahren wird mit einem Umformwerkzeug durchgeführt, bei dem ein Ringstempel (16) und ein Formstempel (18) in einem Arbeitshub den Rohling (1) in den Kommutatorsegmentring (2) mit einem Flansch (4) an einem Ende und einem Schaft (3) mit Kommutatorsegmente (5) bildenden Innenrippen und sie verbindenden Stegen (7) durch Fließpressen umformen. Dabei werden im ersten Abschnitt des Arbeitshubes eine Vorstufe des Flansches (4) und ein Schaftansatz (24) aus dem Rohling (1) geformt, wobei in einem eingestellten Zeitabschnitt am Ende des ersten Abschnittes des Arbeitshubes sich das Profil der die Kommutatorsegmente (5) bildenden Innenrippen auch in den an die Stirnseiten grenzenden Randabschnitten vollständig ausbilden kann. Im anschließenden zweiten Abschnitt des Arbeitshubes werden der Flansch (4) und der Schaft (3) in ihre Endform fließgepreßt. Die Kommutatorsegmente 5 mit vollständigem Profil auf ihrer ganzen Länge ermöglichen das Anformen von Verankerungsmitteln ebenfalls auf der ganzen Länge der Segmente. Dadurch wird bei Kommutatoren die schleuderfeste Verankerung der Segmente im Isolierkörper ermöglicht, so daß sie auch bei schnellaufenden elektrischen Maschinen verwendet werden können.
    公开号:SU1371512A3
    申请号:SU833662254
    申请日:1983-11-18
    公开日:1988-01-30
    发明作者:Боде Вернер；Франц Петер；Росс Вернер；Шульце Гюнтер
    申请人:Роберт Бош Гмбх (Фирма)；
    IPC主号:
    专利说明:

    113
    The invention relates to the technology of manufacturing electrical machines and can be used in the electrical industry.
    The aim of the invention is to reduce the production time and improve the quality of the collector ring.
    FIG. 1 shows a blank for the collector segmented ring; FIG. 2 - collector segmented ring, longitudinal section; in FIG. 3, section A-A in FIG. 2; in fig. 4 - tool for pressure working by direct extrusion at the end of the first forming stage; fig. 3 - the same at the end of the second stage of molding; in fig. 6 — back-extrusion tool at the end of the first forming step; in fig. 7 is the same at the end of the second molding stage.
    The preform 1 for the collector segmental ring 2 of the collector is made of an electrically conductive material, such as copper. The blank 1 has the shape of a ring with a round or rectangular cross section. The blank 1 can be formed from a length of rod that is bent in a ring.
    In order to mold the billet by cold working into a collector segmented ring 2, a shank 3 with a flange 4 at the end is formed from the annular billet 1. In this case, by means of a forming stamp, on the inner side of the workpiece, a plurality of axial inner edges are made, which are located at an equal angular distance from each other. The inner ribs form the original shape for the collector segments 5, which are separated from each other by segment partial grooves 6 and are connected along the perimeter by narrow bridges 7.
    Cold working of the preform I into the collector segment ring 2 takes place in the composite pressure treatment tool in a single operation through two stages of forming. Between the molding steps there is a short adjustable pause.
    The bottom stamp plate 8 is provided with a hole 9 into which the matrix 10 is inserted, made in the form of a hollow cylinder. Tortsova 11 matri side
    Q 5 0
    50
    Q,
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    five
    122
    Tsy 10 is identical in shape to the flange 4 of the collector ring 2 being machined by pressure. In the hole 12 of the matrix 10 there is a lower stamp that serves as a counter-pin 13 and an ejector. The counter-pin 13 has a short cylindrical portion 14 of smaller diameter. To the other end of the counterstep 13, there is a control stamp (not shown) of an adjustable elastic control means (not shown), which is, for example, a hydraulic counter support.
    In the middle stamp plate 15, which has the ability to move relative to the lower stamp plate 8, the ring stamp 16 is fixed. Its external diameter corresponds to the diameter of the hole 9 of the lower stamp plate B. The ring stamp 16 has an internal hole provided with longitudinal teeth 17, the latter having a collector profile segment 5. In the inner hole of the annular stamp 16 provided with the teeth 17, the upper stamp moves longitudinally as a shaping stamp 18. It rests on the the tool control device 19 of the tool management system, which is associated with the upper stamp plate 20. The middle 15 and upper 20 stamp plates can be moved together or relative to one another. The forming stamp 18 along the perimeter of its forming section is provided with teeth 21, spaced at equal angular distance from each other, whose profile corresponds to the segment partial grooves 6 of the collector segment ring 2 and which extend between the teeth 17 of the ring stamp 16.
    In the initial position (Figs. 4 and 5) of the pressure treatment tool, medium I5 and top 20 stamp plates, as well as ring 16 and forming 18 stamps, forming a separate stamp for processing pressure, are held in their top position to embed the workpiece 1. Forming The stamp 18 is retracted behind the front side 22 of the ring stamp 16. The counter stamp 13 is located in the hole 12 of the matrix 10 so that
    313
    at the same time that its front side 23 is separated from the front side 11 of the matrix 10 by about the thickness of the moldable flange 4.
    The blank 1 is inserted into the hole 9 of the lower stamp plate 8 so that it lies on the end face 11 of the matrix 10 forming the support of the workpiece.
    During the forming stage, the middle 15 and top 20 stamp plates with ring 16 and forming 18 stamps are moved onto workpiece 1. Ring 16 and form-forming 18 stamps are displaced during direct extrusion in the same direction. If the ring stamp 16 inserted into the hole 9 of the lower stamp plate 8 is placed on the workpiece 1, it stops, and the forming stamp 18 moves further into the workpiece 1 until the counter face 23 and the top stamp 11 come into contact with the end face 23 the plate 20 is not placed on the ring stamp 16 or the middle stamp plate 15. In this position, the forming stamp 18 and the counter stamp 13 are tightly held one next to the other by known means (not shown). Then, an annular stamp 16 forms the workpiece 1, while it is moved relative to the shtepel 18 further into the hole 9. Excess material of the workpiece 1 is displaced into the matrix 10 up to the counter stamp 13 and it forms a tail nozzle 24 for the collector segment ring 2. After a set interval time along the forming stamp 18 at the preliminary stage of the flange 4 and the tail nozzle 24 the profile of the internal ribs serving as collector segments 5 is completely formed. During this period of time no um movement of the ram, i.e. the first stage of molding was completed earlier (fig. 4). The narrow annular gap 25 formed between the end section 14 of the counter stamp 13 and the walls of the hole 12 of the matrix 10, due to the perception of the extruded material, contributes to the formation of a full profile of internal edges, especially on the final section of the formatable liner 3 of the collector segment
    five
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    five
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    five
    124
    ring 2 at the end of the first forming stage.
    In the second forming stage, the counter stamp 13 is moved back to the hole 12 to the lower fixed end position, limiting the length of the shank 3 of the collector segment ring 2. The middle 15 and top 20 stamp plates are moved to the lower holding plate 8 until the middle stamp plate 15 is not on the lower stamp plate 8. The annular stamp 16 moving with it finally forms the flange 4, while the shaping stamp 18 under the influence of the force of the spring device 19 and the force of friction arose During the flow of material between the extruded material to be processed and the toothed profile, it moves to a new contact with the end face 23 of the counter-pin 13 in the matrix 10, thus forming the shank 3 with the full internal profile of the ribs (Fig. 5). In this the second molding step ends.
    When the tool is open, the collector segment ring 2 is pushed into the position of removing a part with the help of a counter-pin 13 serving as an ejector when it is returned to its original position. An edge formed in the annular gap 25 is removed from the collector segment ring 2 and provided with fastening means and an insulating sleeve in which the collector segments 5 are secured.
    The collector segments 5 are then separated by removing the bridges 7, and the connecting ridges made in the flange 4 provide the ridges. Thus, the manufacture of the collector is completed.
    The tool for pressure working using the reverse extrusion method is shown in FIG. 6 and 7.
    The guide plate 26 is provided with a longitudinal hole 27, in which the lower stamp moves longitudinally as a shaping stamp 18. The upper end of the shaping stamp 18 is provided with teeth 21, the profile of which corresponds to the profile of the segment partial grooves 6. The lower end side of the forming stamp 18 acts spring
    device 19 control system tool.
    On the guide plate 26, a lower stamp plate 8 is fixed, in the opening 9 of which the matrix 10 is inserted into a hollow cylinder. The aperture 12 of the die 10 is provided with longitudinally extending teeth 28 that have a profile of collector segments 5, and the end face II of the die 10 forms the support of the workpiece.
    Fixedly disposed in the middle plate 15 schtempelnoy annular seal 16 which together with a shaping stamp 18 forms an integral seal for the pressure treatment, the reverse extrusion is moved opposite to the shaper stamp 18. In the central hole 29 of the annular upper ram 16 is moved stamp, serving here as kontrshtempel 13. The counter-stem 13 has at the lower end the end portion 14 of a smaller diameter. The upper end of the counter stamp 13 is provided with a shoulder 30, which moves in the extended end portion 31 of the longitudinal hole and overlaps the annular shoulders 32 in the longitudinal hole 29. A control stamp of the adjustable elastic control means abuts the end side 33 of the shoulder 30.
    In the initial position of the pressure treatment tool, the middle stamping plate 15, having an annular stamp 16 and a counter-stamp moving in the annular stamp 16, moves away from the lower stamp plate 8 and is held in its highest position. At the same time, the counter stamp 13 with its shoulder 30 adjoins the annular shoulders 32 of the annular stamp 16, the Annular shoulders 32 restrict the movement of the counter stamp 13 relative to the annular stamp 16 in the direction of the matrix 10. The axial distance between the annular shoulders 32 and the front side 22 of the annular stamp 16, as well as The length of the counterstep 13 between the shoulder 30 and the end side 23 in the end section 14 determines the length of the tailpiece 24, which is molded in the first step. The forming stamp 18 is located in the initial position in the matrix 10 in such a way that its
    0
    five
    0
    the face side does not protrude from the face side 11 of the matrix 10.
    The preform 1 is inserted into the opening 9 of the lower stamp plate 8 so that it lies on the end face 11 of the matrix 10, which forms the support of the workpiece.
    During the first forming step, the forming stamp 18 is pulled out of the matrix 10 through the workpiece 1, while the middle stamping plate 15, having the ring stamp 16, is moved to the bottom 5 by the stamp plate 8. The ring stamp 16 is immersed for adjustable length in the hole 8 and forms the workpiece 1 in the preliminary stage of the flange 4 of the collector segment ring 2. Excess material of the workpiece 1 flows into the hole 29 of the annular stamp to the counter-pin 13, which, with its end face 23, is tightly pressed against the torus The new side of the forming stamp 18. In this case, with the fixed stamps 13, 16 and 18 at the end of the first stage, within the prescribed length of time in the preliminary flange stage and the tail nozzle 24 between the teeth 21 of the forming stamp 18, consequently, the collector segments 5. The fluidity of the material is also supported by the fact that a small part of the material of the workpiece 1 can flow into a narrow, annular gap 25 around the perimeter of the end section 14 of the counter stamp 13 (FIG. 6).
    Then the second stage is formed and. The annular stamp 16 further presses the preliminary step of the flange 4 until the middle stamp plate 15 lies on the lower stamp plate 8. At this time, the counter stamp 13 moves back to its limiting length of the stem 3 in the hole 29 and is held there. The forming stamp 18, which follows the countershaft 13 under the influence of the force of the spring device of the tool management system and the friction force formed when the material flows between the material being pressed in and the gear section, moves to fit snugly to the end face 23 of the counter stamp 13
    five
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     13
    This forms the shank 3 of the collector segment ring with a full profile of internal ribs for the collector segments 5.
    Thus, the second stage of molding is completed (Fig. 7).
    The collector segmented ring 2 is then retracted while the tool is opened, with the help of a counter-stamp 13 serving as an ejector, when E returns, its initial position from the opening 29 of the ring-shaped stamp 16 to the removed part position
    The collector segmented ring 2, in the same way as the first embodiment, is completed into a collector.
    权利要求:
    Claims (4)
    [1]
    Invention Formula
    . A method of manufacturing a collector segmented ring with a plurality of axial inner ribs in the shank and a flange at the end of the shank consisting in cold forming forming a ring-shaped billet, characterized in that, in order to shorten the manufacturing time and improve the quality of the collector ring, the workpiece is installed in the clamping device a pressure treatment tool comprising a composite pressure treatment stamp, parts of which are moveable relative to but each other, and the countertep, are molded in two stages; in the first stage, the flange and the adjacent needle section with a fully formed internal rib profile are molded; in the second stage, the pressure treatment stamp is finally molded. the flange of the collector segmented ring, while using another part of the pressure treatment die, which follows the material flow, extending the shank section, completely forms the internal edges in the modified shank, while at the first stage forming the axial internal ribs internal part of the pressure treatment die is inserted into the workpiece until its end extends in the axial direction of the intended outflow of material from the side
    d
    0
    35
    5 0 gg
    12
    a moldable flange facing the opposite side of the face side of the moldable collector segmented ring, and with an adjustable pressure force does not fit snugly to the counter stamp, then using the outer part of the stamp for pressure treatment with a ring-shaped working surface due to the axial movement J directed against the workpiece, with a fixed the inner part of the die for pre-forming is preformed, and in the second stage the counter-pin is pulled back and the outer part of the head sang for forming passes path corresponding to the final thickness of the flange, while the inner portion of the ram passes to pressure treatment path corresponding to the length of the commutator segment ring.
    [2]
    2. The method according to claim I, the differences between U and the fact that the formation of a complete profile of the inner ribs over the entire length of the collector segment ring is supported during the first forming step by forming a short annular protrusion on the end side of the shank of the preformed workpiece. from the end side of the inner part of the stamp-forming die and extends to the end section of a reduced diameter, the counter-pin adjacent to the end side of the inner part of the formative stamp l
    [3]
    3. Method according to paragraphs. 1 and 2, when the opening of the pressure treatment tool, the collector segment ring is moved to the height-adjustable position of removing the machined part with a counter piece of the inner part of the stamp, which serves as an ejector.
    [4]
    4. Method according to paragraphs. 1-3, characterized in that the execution of the collector segment ring is carried out by direct extrusion, for which the inner part of the pressure treatment stamp, forming the inner ribs, is moved in the outer part forming the flange,
    and during the stroke, both parts of the pressure treatment die are moved in the same direction as
    1
    fig
    15
    13
    FIG 5
    FIG. AT
    Editor L. Veselovska Tehred M. Morgental
    Order 434/59 Circulation 632 Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d, 4/5
     - - .-- ™ -....-. ..in. ™,. ... M | -.-..- -...-..- ..-....
    Production and printing company, Uzhgorod, st. Project, 4
    V
    M. "
    fie.7
    Proofreader A. T sko
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US561328A|1896-06-02|Island |
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    FR1079541A|1952-06-24|1954-11-30|Hoover Ltd|Advanced training in dynamo collectors|
    US3423819A|1966-12-12|1969-01-28|Ford Motor Co|Method of forming relatively straight lengths of metal into elongated members|
    US3608350A|1969-03-04|1971-09-28|Terumoto Yamaguchi|Apparatus and method for producing blanks for commutators for miniature electric devices|
    JPS4837761B1|1969-06-13|1973-11-13|
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    US3768295A|1972-02-08|1973-10-30|Reynolds Metals Co|Forming apparatus and method|
    JPS5017353A|1973-06-19|1975-02-24|
    JPS585515B2|1974-03-13|1983-01-31|Nippon Denso Co|
    JPS5939533B2|1975-08-16|1984-09-25|Tsugunobu Ikeda|
    US4299112A|1977-10-20|1981-11-10|Kabushiki Kaisha Wako|Method and device for producing synchronizer ring|
    US4463590A|1982-02-25|1984-08-07|The Harris-Thomas Drop Forge Company|Forging method|JPH05219690A|1991-02-28|1993-08-27|Hitachi Ltd|Ceramic sliding collector|
    US5600992A|1994-02-10|1997-02-11|Hidaka Seiki Kabushiki Kaisha|Die set|
    DE19514795C1|1995-04-21|1996-06-05|Anton Holzhauer Umformtechnik|Method of manufacturing a commutator|
    FR2754647B1|1996-10-16|1998-12-31|Rockwell Lvs|METHOD FOR MANUFACTURING A COLLECTOR OF A ROTARY MACHINE AND MANIFOLD MANUFACTURED ACCORDING TO THIS METHOD|
    SE512119C2|1998-06-29|2000-01-31|Eric Wirgarth|Press tool for submersible forging and procedure for submersible forging with this tool|
    US6242839B1|2000-03-01|2001-06-05|Kirkwood Industries, Inc.|Commutator and method for manufacturing|
    KR20020050192A|2002-04-17|2002-06-26|권진하|Flanged Commutator Manufacturing Method|
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    JP5901279B2|2011-01-31|2016-04-06|トライス株式会社|Carbon commutator and manufacturing method thereof|
    CN102489643B|2011-12-21|2014-03-19|宁波华德汽车零部件有限公司|Cold heading manufacturing process of copper ring for automobile generator|
    ES2624136T3|2012-04-03|2017-07-13|Thyssenkrupp Presta Aktiengesellschaft|Procedure for manufacturing an extruded stump|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19823242703|DE3242703A1|1982-11-19|1982-11-19|METHOD FOR PRODUCING A COMMUTATOR SEGMENT RING|
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