WO2012071943A1 - 电动抽芯铆钉枪之机芯 - Google Patents

电动抽芯铆钉枪之机芯 Download PDF

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Publication number
WO2012071943A1
WO2012071943A1 PCT/CN2011/080514 CN2011080514W WO2012071943A1 WO 2012071943 A1 WO2012071943 A1 WO 2012071943A1 CN 2011080514 W CN2011080514 W CN 2011080514W WO 2012071943 A1 WO2012071943 A1 WO 2012071943A1
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Prior art keywords
pull rod
bracket
wheel
main shaft
diameter portion
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Application number
PCT/CN2011/080514
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English (en)
French (fr)
Inventor
卢文竹
洪良明
Original Assignee
上海中轩科技发展有限公司
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Publication of WO2012071943A1 publication Critical patent/WO2012071943A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/16—Drives for riveting machines; Transmission means therefor
    • B21J15/26—Drives for riveting machines; Transmission means therefor operated by rotary drive, e.g. by electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/04—Riveting hollow rivets mechanically
    • B21J15/043—Riveting hollow rivets mechanically by pulling a mandrel

Definitions

  • the present invention belongs to the technical field of blind rivet riveting tools, and particularly relates to a movement of an electric blind rivet gun for use in a rivet rivet assembly workpiece.
  • blind rivets are a type of rivet for single-sided riveting, but must be riveted with a special tool rivet gun.
  • rivet nail core is pulled by a special rivet gun to expand the rivet body and serve as a riveting action.
  • These rivets are particularly suitable for riveting applications where ordinary rivets (which must be riveted from both sides) are inconvenient, so they are widely used in construction, automobiles, ships, airplanes, machines, electrical appliances, furniture and other products.
  • riveting with a rivet gun only the riveting work can be completed by one-side construction. The construction and operation are very convenient and fast, and the workpiece will not be damaged. It is suitable for construction where the hand or the top iron cannot reach.
  • the rivet joint principle is that the rivet head runs through the riveted plate, and the rivet rod is forced to expand to form a flange shape by the tensile force, so that the material can achieve the purpose of riveting.
  • the rivet gun includes a manual blind rivet gun, a pneumatic blind rivet gun and an electric blind rivet gun.
  • blind rivet guns are used in the market and in engineering.
  • the working principle of the manual blind rivet gun is: Hold two gun handles by two hands, and force both arms to force in the middle, pull a tube through the lever, the inside of the barrel head is equipped with three claws, and the three claws are wrapped by the ring On the inner conical surface of the outer cylindrical cavity, bite the blind rivet rod and pull it back.
  • the core rivet gun is opened and closed several times. With the back and forth movement of the bobbin, the three claws in the cylinder pull the rivet rod several times, and the small end of the rivet rod is compressed by the large end of the rivet rod until the rivet is compressed. The combined workpiece is riveted, and finally the rivet rod can not withstand a large pulling force, and the neck is collapsed and broken at the big end, and the rivet is finished. Cheng.
  • the pneumatic blind rivet gun converts compressed air into hydraulic motion, and controls the piston shaft to move forward and backward to complete the riveting work.
  • the manual blind rivet gun has low working efficiency, and the pneumatic blind rivet gun consumes a large amount of energy.
  • the object of the present invention is to provide a movement of an electric blind rivet gun with high work efficiency, low energy consumption, large breaking force, long stroke, simple assembly and disassembly and maintenance, convenient component exchange, and electric driving.
  • a movement of an electric blind rivet gun is designed.
  • the motor is connected to the main shaft through a reducer, and a bracket is arranged on the main shaft casing, and the bracket is fixedly connected to the end surface of the reducer, and a bearing is arranged between the bracket and the main shaft.
  • the bracket is further provided with a pull rod mounting hole, and the pull rod is a hollow cylinder.
  • the outer surface of the pull rod is a first small diameter portion, a large diameter portion and a second small diameter portion from right to left, and is disposed on the large diameter portion.
  • the connecting block mounting groove is provided with a widened neck portion on the inner diameter of the large diameter portion and the second small diameter portion, and the first small diameter portion of the pull rod is disposed in the rod mounting hole of the bracket, and is extended from the main shaft of the speed reducer
  • the bearing is arranged outwardly with a stroke switch wheel, a rotating wheel and a second bearing, wherein the rotating wheel is obliquely fixed on the main shaft, and a rocking wheel is arranged on the rotating wheel outer casing, and the rocking wheel is positioned on the rotating wheel by rotating the wheel cover, the connecting block One end is disposed on the protruding post of the rocking wheel, and the other end is disposed on the connecting block mounting groove on the pull rod, and the second small diameter portion and the large diameter portion of the pull rod are provided with a sleeve with a plug, and the plug is provided
  • the angle between the center of the inner hole of the rotating wheel and the axis of the rotating wheel is 10 ⁇ ⁇ .
  • the above-mentioned spindle is fixed to the output shaft of the reducer by screws, and the bracket is fixed by the screw to slow down. On the outer casing of the device.
  • the above-described travel switch is fixed to the bracket by screws.
  • the above-mentioned rotating wheel is fixed to the main shaft by a flat key.
  • the invention reciprocates the swing rod by the reciprocating rocking of the rocking wheel to perform linear reciprocating motion, so that the rivet gun has large breaking force, long stroke, simple structure, and easy assembly and disassembly maintenance;
  • the present invention is provided with a travel switch wheel on the main shaft, and a travel switch is arranged at the corresponding position of the bracket to ensure that the pull rod is reset to the state where the three-jaw is open after each rivet operation is completed, and the continuity of the work can be ensured. Improve work efficiency;
  • the invention is applicable to the riveting of blind rivets on construction, automobiles, ships, airplanes, machines, electrical appliances, furniture and the like.
  • Figure 1 is a schematic perspective view of the present invention
  • Figure 2 is a schematic cross-sectional view of the present invention
  • Figure 3 is a schematic view of the exploded structure of the present invention.
  • the movement of the electric blind rivet gun, the motor 1 is connected to the main shaft 3 through the reducer 2, and the bracket 4 is provided on the main shaft 3, and the bracket 4 is fixedly attached to the end surface of the speed reducer 2, and the bracket 4 and the main shaft 3 are disposed between
  • the bearing 5 is further provided with a tie rod mounting hole 41 on the bracket 4, and the pull rod 14 is a hollow cylinder.
  • the outer surface of the pull rod 14 is a first small diameter portion 141, a large diameter portion 143, and a second small diameter from right to left.
  • the connecting block mounting groove 142 is provided on the inner diameter of the large diameter portion 143 and the second small diameter portion 144.
  • a wide neck portion 146 is provided, and the first small diameter portion 141 of the pull rod 14 is disposed in the rod mounting hole 41 of the bracket 4, and the stroke switch wheel 7 is rotated from the bearing 5 to the main shaft 3 protruding from the speed reducer.
  • the wheel 10 and the second bearing 11 are tilted and fixed on the main shaft 3, and are positioned on the main shaft 3 through the flat key 12.
  • the swing wheel 10 is provided with a rocking wheel 9 through which the rocking wheel 9 passes.
  • the rocking wheel 9 is connected to the pull rod 14 through the connecting block 13, one end of the connecting block 13 is disposed on the protruding post 91 of the swinging wheel 9, and the other end is disposed on the connecting rod mounting groove 142 of the pull rod 14, the pull rod 14
  • the second small diameter portion 144 and the large diameter portion 143 are sleeved with a sleeve 18 having a plug 19, and the plug 19 is provided with a through hole coaxial with the rod inner hole 145, in the flared portion 146 of the tie rod 14.
  • a guide post 16 is disposed.
  • the guide post 16 is provided with a through hole coaxial with the inner hole 145 of the pull rod.
  • the guide post 16 is provided with a return spring 15 , and one end of the return spring 15 is caught on the convex edge 161J of the guide post 16 .
  • the other end is stuck on the stepped surface 1461 of the flared neck 146, and the end of the guide post 16 and the plug 19 are provided with three Tooth 17, the holder 4 and the corresponding position limit switch 7 is provided with wheels cooperating with limit switch limit switch 6 wheel 7, arranged spindle axis parallel to the axis of the bore 3 of the rod 145.
  • the center of the inner hole of the above-mentioned rotating wheel 10 is 10° ⁇ 1 ° between the center of the rotating wheel 10.
  • the above-mentioned main shaft 3 is fixed to the output shaft of the speed reducer 2 by screws, and the bracket 4 is fixed to the outer casing of the speed reducer 2 by screws.
  • the above-described travel switch 6 is fixed to the bracket 4 by screws.
  • the rotating wheel 10 is rotated by the main shaft 3, and the rotating wheel 10 is obliquely disposed on the main shaft 3, and the rotation is converted into a linear reciprocating motion by the swinging wheel 9, and the swinging wheel 9 is caused to pass through the connecting block 13 to make the pulling rod 14 Linear reciprocating motion.
  • the three-jaw tooth 17 disposed at the other end of the pull rod 14 is in an open state in an initial state. When the pull rod 14 is pulled back, the three-jaw tooth 17 bites the nail rod of the aluminum blind rivet and pulls back to make the aluminum rivet
  • the combined workpiece is riveted and the riveting operation is completed. Broken rivet The shank is dropped through the inner hole 145 of the tie rod.
  • the rotation of the control spindle 3 is a cycle of the linear reciprocating motion of the drawbar, which is also After one cycle of the operation of the rivet gun, the motor 1 is not energized, so that the rivet gun works just one cycle, and the motor 1 is powered off, ensuring that the three-jaw teeth 17 are in an open state after each rivet operation is completed, and the continuity of the work can be ensured. , Improve work efficiency.

Description

电动抽芯铆钉枪之机芯
[技术领域] 本发明属于抽芯铆钉铆固工具技术领域， 特指一种用于抽芯铆钉铆固组合 工件用的电动抽芯铆钉枪之机芯。
[背景技术]
抽芯铆钉是一类单面铆接用的铆钉， 但须使用专用工具铆钉枪进行铆接。 铆接时， 铆钉钉芯由专用铆枪拉动， 使铆体膨胀， 起到铆接作用。 这类铆钉特 别适用于不便采用普通铆钉 (须从两面进行铆接)的铆接场合， 故广泛用于建筑、 汽车、 船舶、 飞机、 机器、 电器、 家具等产品上。 使用铆钉枪铆接时， 只需要 单侧施工即可完成的铆接工作， 施工、 操作非常方便、 快速， 不会破坏工件， 适用于手或顶铁无法到达的部位施工。铆钉接合原理为铆钉头贯穿铆接之板材， 铆钉杆受拉力迫使铆钉头扩张形成凸缘状， 使材料达到铆接的目的。 铆钉枪包 括有手动抽芯铆钉枪、 气动抽芯铆钉枪及电动抽芯铆钉枪。 通常， 在市场上和 工程中使用抽芯铆钉枪为手动的。 手动抽芯铆钉枪的工作原理是： 靠两只手紧 握二只枪把， 两只胳膊用力向中间使劲， 通过杠杆拉动一筒管， 筒管头内部装 有三爪牙， 三爪牙借助于环包于其外圆柱型腔体的内圆锥面， 咬住抽芯铆钉杆 向后拉。 操作时， 先将抽芯铆钉尾部的钢质铆钉杆插入抽芯铆钉枪头部的三爪 牙内， 然后再将抽芯铆钉枪放正， 使铆钉插入要铆接工件的孔内， 再用力将抽 芯铆钉枪把开合几次， 随着筒管的前后运动， 其内的三爪牙分几次拉动抽芯铆 钉杆， 靠抽芯铆钉杆的大头端将铆钉的细端压縮撑大， 直到将组合工件铆紧， 最后铆钉杆承受不了再大的拉力， 在大头端发生颈縮， 断裂为止， 完成铆固过 程。 气动抽芯铆钉枪是将压缩空气转化成液动， 控制活塞轴前后运动完成铆接 工作。 手动抽芯铆钉枪工作效率低， 气动抽芯铆钉枪耗能大。
[发明内容]
本发明的目的是提供一种工作效率高、 耗能小、 具有拉断力大、 行程长、 装拆维修简易、 零部件调换方便、 以电动方式驱动的电动抽芯铆钉枪之机芯。
为实现上述目的设计一种电动抽芯铆钉枪之机芯， 电机通过减速器与主轴 连接， 在主轴外套设有支架， 支架固连在减速器的端面上， 支架与主轴之间设 置有轴承， 在支架上还设置有拉杆安装孔， 拉杆为中空的圆柱体， 拉杆的外表 面由右至左依次为第一细径部、 大径部、 第二细径部， 在大径部上设置有连接 块安装槽， 在大径部及第二细径部的内径上设置有扩颈部， 拉杆的第一细径部 设置在支架上的拉杆安装孔内， 在伸出减速器的主轴上从轴承往外依次设置有 行程开关轮、 转动轮及第二轴承， 所述的转动轮倾斜固定在主轴上， 在转动轮 外套设有摇摆轮， 摇摆轮通过转动轮盖定位在转动轮上， 连接块的一端设置在 摇摆轮的凸柱上， 另一端设置在拉杆上的连接块安装槽上， 拉杆的第二细径部 及大径部外套设有带堵头的套筒， 堵头上设置有与拉杆内孔同轴的通孔， 在拉 杆的扩颈部内设置有导柱， 导柱上设置有与拉杆内孔同轴的通孔， 在导柱外套 设有复位弹簧， 复位弹簧的一端卡在导柱的凸沿上， 另一端卡在扩颈部的台阶 面上， 导柱的端部与堵头之间设置有三爪牙， 在与行程开关轮相应的位置的支 架上设置有与行程开关轮相配合的行程开关， 主轴的轴线与拉杆内孔的轴线平 行设置。
上述的转动轮的内孔的中心与转动轮的轴心之间的夹角为 10± Γ 。
上述的主轴通过螺钉固定在减速器的输出轴上、 支架通过螺钉固定在减速 器的外壳上。
上述的行程开关通过螺钉固定在支架上。
上述的转动轮通过平键固定在主轴上。
本发明相比现有技术突出的优点是：
1、 本发明通过摇摆轮的往复摇摆带动拉杆进行直线往复运动， 使铆钉枪的 拉断力大、 行程长、 结构简单， 装拆维修简易；
2、本发明在主轴上设置有行程开关轮，在支架相应位置上设置有行程开关， 保证每次铆钉作业完成后拉杆都复位到三爪牙都处于张开的状态， 能保证工作 的连续性， 提高了工作效率；
3、 本发明适用于建筑、 汽车、 船舶、 飞机、 机器、 电器、 家具等产品上的 抽芯铆钉的铆接。
[附图说明]
图 1是本发明的立体结构示意图；
图 2是本发明的剖面结构示意图；
图 3是本发明的爆炸结构示意图。
[具体实施方式]
下面以具体实施例对本发明作进一步描述， 参见图 1-3 :
电动抽芯铆钉枪之机芯， 电机 1通过减速器 2与主轴 3连接， 在主轴 3外 套设有支架 4， 支架 4固连在减速器 2的端面上， 支架 4与主轴 3之间设置有轴 承 5， 在支架 4上还设置有拉杆安装孔 41， 拉杆 14为中空的圆柱体， 拉杆 14 的外表面由右至左依次为第一细径部 141、 大径部 143、 第二细径部 144， 在大 径部 143— k设置有连接块安装槽 142，在大径部 143及第二细径部 144的内径上 设置有扩颈部 146， 拉杆 14的第一细径部 141设置在支架 4上的拉杆安装孔 41 内， 在伸出减速器的主轴 3上从轴承 5往外依次设置有行程开关轮 7、 转动轮 10及第二轴承 11， 所述的转动轮 10倾斜固定主轴 3上， 并通过平键 12定位在 主轴 3上， 在转动轮 10外套设有摇摆轮 9， 摇摆轮 9通过转动轮盖 8定位在转 动轮 10L, 摇摆轮 9通过连接块 13与拉杆 14连接， 连接块 13的一端设置在摇 摆轮 9的凸柱 91上， 另一端设置在拉杆 14上的连接块安装槽 142 ， 拉杆 14 的第二细径部 144及大径部 143外套设有带堵头 19的套筒 18， 堵头 19上设置 有与拉杆内孔 145同轴的通孔， 在拉杆 14的扩颈部 146内设置有导柱 16， 导柱 16上设置有与拉杆内孔 145同轴的通孔， 在导柱 16外套设有复位弹簧 15， 复 位弹簧 15的一端卡在导柱 16的凸沿 161J—， 另一端卡在扩颈部 146的台阶面 1461上， 导柱 16的端部与堵头 19之间设置有三爪牙 17， 在与行程开关轮 7相 应的位置的支架 4上设置有与行程开关轮 7相配合的行程开关 6，主轴 3的轴线 与拉杆内孔 145的轴线平行设置。
上述的转动轮 10的内孔的中心与转动轮 10的轴心之间的 10° ± 1 ° 。
上述的主轴 3通过螺钉固定在减速器 2的输出轴上、 支架 4通过螺钉固定 在减速器 2的外壳上。
上述的行程开关 6通过螺钉固定在支架 4上。
本发明的工作原理：
电机 1通过减速器 2减速后通过主轴 3带动转动轮 10转动， 转动轮 10倾 斜设置在主轴 3上， 通过摇摆轮 9将转动转变成直线往复运动， 摇摆轮 9通过 连接块 13使拉杆 14进行直线往复运动。设置在拉杆 14另一端的三爪牙 17， 在 初始状态下为张开状态， 当拉杆 14往后拉时， 三爪牙 17咬住铝质抽芯铆钉的 钉杆并往后拉从而使铝质铆钉将组合工件铆固， 最后完成铆接作业。 拉断的铆 钉杆通过拉杆内孔 145内掉出来。 由于在主轴 3上设置有行程开关轮 7， 并在支 架 4上的相应位置设置了与行程开关轮 7相配合的行程开关 6，控制主轴 3转一 圈为拉杆直线往复运动的一个周期， 也是完成铆钉枪运作的一个周期， 电机 1 不通电， 从而保证铆钉枪的工作刚好一个周期电机 1 就断电， 保证每次铆钉作 业完成后三爪牙 17都处于张开状态， 能保证工作的连续性， 提高了工作效率。
上述实施例仅为本发明的较佳实施例之一， 并非以此限制本发明的实施范 围， 故： 凡依本发明的形状、 结构、 原理所做的等效变化， 均应涵盖于本发明 的保护范围之内。

Claims

1. 一种电动抽芯铆钉枪之机芯， 其特征在于： 电机通过减速器与主轴连接， 在 主轴外套设有支架， 支架固连在减速器的端面上， 支架与主轴之间设置有轴 承， 在支架上还设置有拉杆安装孔， 拉杆为中空的圆柱体， 拉杆的外表面由 右至左依次为第一细径部、 大径部、 第二细径部， 在大径部上设置有连接块 安装槽， 在大径部及第二细径部的内径上设置有扩颈部， 拉杆的第一细径部 设置在支架上的拉杆安装孔内， 在伸出减速器的主轴上从轴承往外依次设置 有行程开关轮、 转动轮及第二轴承， 所述的转动轮倾斜固定在主轴上， 在转 动轮外套设有摇摆轮， 摇摆轮通过转动轮盖定位在转动轮上， 连接块的一端 设置在摇摆轮的凸柱上， 另一端设置在拉杆上的连接块安装槽上， 拉杆的第 二细径部及大径部外套设有带堵头的套筒， 堵头上设置有与拉杆内孔同轴的 通孔，在拉杆的扩颈部内设置有导柱， 导柱上设置有与拉杆内孔同轴的通孔， 在导柱外套设有复位弹簧， 复位弹簧的一端卡在导柱的凸沿上， 另一端卡在 扩颈部的台阶面上， 导柱的端部与堵头之间设置有三爪牙， 在与行程开关轮 相应的位置的支架上设置有与行程开关轮相配合的行程开关， 主轴的轴线与 拉杆内孔的轴线平行设置。
2. 根据权利要求 1所述的电动抽芯铆钉枪之机芯， 其特征在于： 所述的转动轮 的内孔的中心与转动轮的轴心之间的夹角为 10 ± 1 ° 。
3. 根据权利要求 1所述的电动抽芯铆钉枪之机芯， 其特征在于： 所述的主轴通 过螺钉固定在减速器的输出轴上、 支架通过螺钉固定在减速器的外壳上。
4. 根据权利要求 1所述的电动抽芯铆钉枪之机芯， 其特征在于： 所述的行程开 关通过螺钉固定在支架上。
5. 根据权利要求 1所述的电动抽芯铆钉枪之机芯， 其特征在于： 所述的转动轮 通过平键固定在主轴上。
PCT/CN2011/080514 2010-11-30 2011-10-07 电动抽芯铆钉枪之机芯 WO2012071943A1 (zh)

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US11724304B2 (en) * 2015-11-02 2023-08-15 Goran Olsson Handheld handle-powered pull riveter

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EP1300205A2 (en) * 2001-09-26 2003-04-09 FAR S.r.l. A riveting gun
US6684470B1 (en) * 1998-06-15 2004-02-03 Jean-Claude Joux Electroportable device for placing clinch-on nuts or break-off stem blind rivets
CN101224486A (zh) * 2008-01-25 2008-07-23 孙延新 拉铆枪的拉铆装置
CN101224485A (zh) * 2008-01-25 2008-07-23 孙延新 拉铆枪

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US6684470B1 (en) * 1998-06-15 2004-02-03 Jean-Claude Joux Electroportable device for placing clinch-on nuts or break-off stem blind rivets
EP1300205A2 (en) * 2001-09-26 2003-04-09 FAR S.r.l. A riveting gun
CN101224486A (zh) * 2008-01-25 2008-07-23 孙延新 拉铆枪的拉铆装置
CN101224485A (zh) * 2008-01-25 2008-07-23 孙延新 拉铆枪

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