• 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:

    公开号:SU1041023A3
    申请号:SU803215302
    申请日:1980-12-09
    公开日:1983-09-07
    发明作者:Поточник Йоже
    申请人:Колектор П.О. (Инопредприятие)；
    IPC主号:
    专利说明:

    The invention relates to mechanical engineering technology, as well as to metal forming, and can be used in the manufacture of motor collectors. A known method for producing semi-fab collectors of an electric motor includes cold stamping by extruding a cylindrical sleeve with a longitudinal radial grooves evenly spaced around the circumference and e subsequent radial reduction L1 3. A disadvantage of the known method is the inability to manufacture collectors with side projections. A known method for producing semi-fab collectors of an electric motor includes punching by extruding a billet in the form of a cylindrical bushing with an outer flange at the end and evenly spaced around the circumference of internal longitudinal grooves and its subsequent radial compression. Finish off with a uniform reduction in the width of the grooves and, therefore, will precisely withstand the magnitude of the collector division. The purpose of the invention is to improve the accuracy of the produced collectors. The goal is achieved in that according to the method of producing semi-finished products of electric motor collectors, including stamping by extruding the workpiece in the form of a cylindrical sleeve with an outer flange at the end and evenly spaced around the circumference of the internal longitudinal grooves the outer side of the workpiece is made with the same offset along the circumference with respect to the internal grooves; the external longitudinal grooves, Surfaces on one cylindrical surface with bottom surfaces of the internal grooves, and radial compression is performed before the side walls of the external grooves are closed. In addition, radial grooves are stamped on the front side of the flange of the workpiece, connecting them to the inner longitudinal grooves, and on the opposite side of the flange also stamping 2 and 3 grooves, connecting them to the outer longitudinal grooves. Fig. 1 schematically shows a blank obtained by extrusion by punching with a flange and longitudinal grooves; figure 2 is the same cross section; FIG. 3 shows a blank mounted in a tool for radial reduction; a - before crimping, b - after crimping, cross section; in fig. - the same longitudinal section; figure 5 - obtained semi-finished product after radial reduction of the workpiece, the cross section. The method is carried out as follows. By stamping by squeezing the copper billet 1, a cylindrical sleeve with an outer flange 2 at the end is shaped (figure 1 and 2). On the inner surface of the sleeve 1, uniformly circumferentially longitudinal grooves 3 are made, which are parallel to each other and the longitudinal axis of the workpiece 1. The distance between the circumferential grooves 3 circumferentially corresponds to the required division of the produced collector. The depth of the longitudinal grooves 3 is chosen in such a way that the removal of their bottom from the outer surface of the workpiece 1 is equal to the thickness of the layer of material removed by turning after filling the copper semi-finished product under pressure with insulating plastic. The depth of the groove corresponds to the height of the plate k formed by the longitudinal grooves 3, D-5 of the finished collector. The circumferentially measured width of the longitudinal grooves 3 exceeds the insulation width of the finished collector, i.e. circumferential distance between two adjacent plates of the finished collector. When extruding, the radial grooves 5 are made on the end side of the flange 2, which are a continuation of the grooves 3. The arrangement of the radial grooves 5 corresponds to the manifold division. The depth of the radial groove 5 is chosen in such a way that the removal of its bottom from the other end surface of the flange 2 is equal to the thickness of the layer removed by turning. On the outer surface of the workpiece 1, longitudinal grooves 6, the number of which is made, are stamped out by extrusion. the number of internal longitudinal grooves 3. The depth of the external longitudinal grooves 6 is equal to the thickness of the material removed by turning. Therefore, the bottom (each outer longitudinal groove is within the cylindrical surface defined by the location of the bottom of the inner longitudinal grooves 3. The circumferentially measured width of the longitudinal grooves 6 is equal to the size by which the width of the inner longitudinal grooves 3 should be reduced during subsequent radial reduction of the copper workpiece 1 The difference between the dimensions across the width of the longitudinal grooves 3 and 6 is equal to the insulating distance of the finished collector. The outer longitudinal grooves 6 are offset with respect to the internal longitudinal grooves 3 circumferentially (Fig. 2, all in the same direction and by the same magnitude. Due to this, the bottom of each longitudinal groove 3 and the bottom of the adjacent longitudinal groove 6 has a partition 7, the circumference of which is chosen so that it is cut off at a subsequent time the radial compression of the copper billet 1 approximately along the cylindrical surface defined by the bottom of the groove 3. In this embodiment, the width of the partitions 7 is somewhat less than the width of the outer groove 6. As an extension of the longitudinal grooves 6 on the facing to the outer ilindricheskoy surface of the workpiece 1 side end face of the flange 2 is also extruded during stamping is performed radial grooves 8, the depth of which is equal to the thickness of the rented by subsequently turning the material layer (1). Due to the depth of the groove and the displacement of the pa; The radial grooves 8 with respect to the radial grooves 5 on the flange between each radial grooves 5 and the corresponding radial groove 8 have a thin partition 9, which is cut off at the subsequent radial side of the workpiece 1. After all the grooves have been completed, the copper workpiece 1 is placed in the device for the radial cutting, which contains (fig.Za, b and 4a, 6) star-shaped mandrel 10, mounted with the possibility of longitudinal movement in the sleeve 11. This mandrel has edges 12, the number and position of which corresponds to the number and position longitudinal grooves 3 of the workpiece 1 and which are located at the end of the mandrel introduced into the workpiece 1. These rib10 3.4 ras have (fig.Za, b) such a profile that they can somewhat enter the longitudinal grooves 3, while adjoining to their sides, if the workpiece 1 is compressed to the required size. Concentrically with respect to the mandrel 10, radially movable punches 13 are installed in the crimping device, the number of which corresponds to the number of ribs 12. These punches (Fig. B) have a profile that allows them to fit simultaneously to the outer surface of the shell of the cylindrical part of the workpiece. 1 and against the outer surface of the flange 2, and pressing each of the plates k in the radial direction against the mandrel 10 (FIG. 36). Since during this movement in the radial direction there is a forced reduction in the size around the circumference of the blank 1, the partitions 7 and 9 are cut off (Figs. 36 and 5) along the surface defined by the bottom of the longitudinal and radial grooves. Located outside the longitudinal grooves 3 and the radial grooves 5, the bridges C and 15 are displaced after cutting the partitions, filling the longitudinal grooves 6 and the radial grooves 8. Thus, the side walls of the outer grooves 6 and 8 are interconnected, and these grooves are eliminated. At the same time moving the adjacent plates k relative to each other, the width of the longitudinal grooves 3 and the radial grooves 5 is reduced to the final value, since a further reduction in circumferential size and, thus, a further reduction in the width of these grooves becomes impossible after the bridges completely fill the grooves, resting in the remaining wall of the groove. Due to the radially directed load, under the influence of which bridges I and 15 are pressed when they are inserted into the longitudinal grooves 6 and radial grooves 8, they are welded by friction, so that the coking operation is compressed (all the plates k are interconnected by bridges k and 15, and the copper preform 1 is again transformed into a rigid body. After that, the mandrel 10 is removed from the obtained semi-finished product, which rests on the sleeve 11 and the part of the crimping device that holds it. The crimped semi-finished product the collector can be stored
    after this hoop and t.L. devices before filling under pressure with insulating plastic. As a rule, even before filling in the inner surfaces of the plates, k is formed by splitting the fastening protrusions, which significantly improve the connection of the plates with the body of pressed plastic. After filling
    the plastic under pressure has a cylindrical section of the copper collector body and its flange are turned to remove bridges I and 15.
    The proposed method allows one to sufficiently withstand the magnitude of the collector division 1 / (I and, therefore, increase the accuracy of the manufactured products - collectors of electric motors.
    / // l 0l / f. J
    权利要求:
    Claims (2)
    [1]
    1. METHOD FOR FLOOR • fabric COLLECTORS ELECTRIC comprising embossed stamping 'vaniem workpiece in the form of a cylindrical sleeve having an outer end and a flange at uniformly circumferentially spaced internal longitudinal grooves and subsequent radial tightness with regard of the workpiece with a decrease in groove width, characterized in: that, in order to improve the accuracy of the produced collectors, when stamping by extrusion by pressing the outside of the workpiece, the workpieces are performed with the same circumferential displacement with respect to the internal grooves of the outer suspended longitudinal. grooves, forming their bottom surfaces on the same cylindrical surface with the bottom surfaces of the internal grooves, and radial compression is performed before the closing grooves.
    [2]
    2. A method for radial grooves is stamped on the side of the workpiece flange by joining them with internal longitudinal grooves, and radial grooves are also stamped on its opposite side, connecting them to external longitudinal grooves.
    side walls
    p. 1, about the fact that at the end
    SU ", 1041023
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    同族专利:
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    DD155126A5|1982-05-12|
    RO78997A|1982-06-25|
    BG32120A3|1982-05-14|
    DK487180A|1981-09-25|
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    PL137637B1|1986-07-31|
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    AT10315T|1984-11-15|
    DE3069641D1|1984-12-20|
    EP0036444B1|1984-11-14|
    EP0036444A2|1981-09-30|
    EP0036444A3|1981-11-11|
    DK147562B|1984-10-01|
    US4370799A|1983-02-01|
    ES8202198A1|1982-01-01|
    JPS56133954A|1981-10-20|
    YU81780A|1982-10-31|
    PL229183A1|1981-10-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0137957A1|1983-09-15|1985-04-24|Robert Bosch Gmbh|Method of manufacturing an intermediate stage for a commutator-segment collar|DE961910C|1954-12-31|1957-04-11|Bosch Gmbh Robert|Method for manufacturing a commutator from a ring-shaped workpiece|
    JPS4837761B1|1969-06-13|1973-11-13|
    DE2028857C3|1969-06-13|1975-05-28|Hitachi Ltd., Tokio|DE3201027C2|1982-01-15|1986-11-27|Robert Bosch Gmbh, 7000 Stuttgart|Method for manufacturing a commutator ring|
    DE3243191A1|1982-11-23|1984-05-24|Robert Bosch Gmbh, 7000 Stuttgart|METHOD FOR PRODUCING A COMMUTATOR RING FOR A COMMUTATOR|
    DE102008040717A1|2008-07-25|2010-01-28|Robert Bosch Gmbh|Commutator for an electric machine as well as system|
    DE102013207887A1|2013-04-30|2014-10-30|Robert Bosch Gmbh|Method for producing a collector for a commutation device|
    CN104874714B|2015-04-24|2016-06-01|浙江东瑞机械工业有限公司|A kind of commutator segment making method|
    CN104759569B|2015-04-24|2016-06-15|浙江东瑞机械工业有限公司|Commutator segment manufacture method|
    CN106734736A|2015-11-24|2017-05-31|宁波胜克换向器有限公司|A kind of pressing mold that commutator hook foot press system is rounded|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    YU00817/80A|YU81780A|1980-03-24|1980-03-24|Method of producing a cast in commutator|
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