WO2020199725A1 - 内弧面凸轮机构转位装置 - Google Patents

内弧面凸轮机构转位装置 Download PDF

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Publication number
WO2020199725A1
WO2020199725A1 PCT/CN2020/072462 CN2020072462W WO2020199725A1 WO 2020199725 A1 WO2020199725 A1 WO 2020199725A1 CN 2020072462 W CN2020072462 W CN 2020072462W WO 2020199725 A1 WO2020199725 A1 WO 2020199725A1
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Prior art keywords
bearing
camber
driven
cam
cambered
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PCT/CN2020/072462
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English (en)
French (fr)
Inventor
闫茹
曹巨江
杨坤
梁金生
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陕西科技大学
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Publication of WO2020199725A1 publication Critical patent/WO2020199725A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/18—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes the members having helical, herringbone, or like teeth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/0018—Shaft assemblies for gearings

Definitions

  • the invention relates to an internal camber mechanism indexing device, which is a decelerating indexing device for a camber cam mechanism based on internal meshing.
  • Indexing devices are widely used in machining centers, CNC machine tools, manipulators, and product production lines. Accurate indexing and indexing are especially important.
  • the arc cam mechanism can withstand large loads under high-speed motion, run smoothly, and has low noise and vibration. It has incomparable advantages in dynamic performance, load-bearing capacity, indexing accuracy, etc., but the existing The external meshing arc cam mechanism occupies a large space and the application occasion is limited.
  • the present invention proposes an internally meshing inner cambered cam mechanism, which not only has the advantages of a common outer meshing cambered cam mechanism, but also has a small volume and a compact structure.
  • the purpose of the present invention is to provide an internal camber mechanism indexing device, which has the characteristics of simple structure, compactness, large carrying capacity and relatively reliable.
  • the technical solution adopted by the present invention is: a motor, a cambered cam, and a driven plate matched with the cambered cam; it is characterized in that the cambered cam driven by the motor through a transmission device; the motor, cambered cam And the transmission device are located in the ring of the driven disk, the cambered cam meshes with the driven disk radiating inward from the rollers; the driven disk is matched with the inner ring of the bearing, and the outer ring of the bearing is fixed in the bearing seat, the bearing seat Install on the connecting flange.
  • the said driven plate engages with the trapezoidal groove on the arc cam through the roller.
  • the rollers are spherical cone rollers.
  • the transmission device includes a driving pulley connected with the motor, the driving pulley is connected with the driven pulley through the transmission belt; the driven pulley is coaxially installed with the arc cam.
  • the bearing includes bearing one and bearing two; both the outer side of the bearing one and the bearing two are provided with a shaft end baffle.
  • the cambered cam is installed on the cambered camshaft, and both ends of the cambered camshaft are supported by bearing seats.
  • the arc cam driven by the motor and the transmission device the driven plate matched with it, the rollers on the driven plate radiate inward, the arc cam is located inside the driven plate, and the trapezoid on the arc cam
  • the groove and the spherical cone roller on the driven disk form an internal meshing to realize the smooth rotation of the driven disk with a large reduction ratio.
  • the driven disk is matched with the inner ring of the bearing, the outer ring of the bearing is fixed in the bearing seat, and the bearing seat is installed on the connecting flange.
  • the inner camber mechanism realizes the reduced rotation of the driven disk.
  • the connecting flange can be installed where precise indexing movement is required.
  • the motor and the transmission device are arranged inside the driven plate, which greatly reduces the space occupation of the overall structure, and has a small volume, a compact overall structure and strong practicability.
  • Figure 1 is a schematic diagram of the principle of the present invention.
  • Figure 2 is a top view of the structure of the present invention.
  • Figure 3 is a left side view of the structure of the present invention.
  • Fig. 4 is a partial enlarged view of the left side view of the structure of the present invention.
  • the indexing device for the cam mechanism of the inner camber including the motor 4, the belt drive 6, the camber 8, the follower plate 1 with the rollers radiating inward, the bearing 17 and the follower plate matched with the follower plate Bearing two 18, supporting bearing seat 16, connecting flange 14;
  • the motor and belt drive are installed inside the driven disk 1
  • the motor 4 drives the driving pulley 5, and the driven pulley 7 is driven to rotate through the transmission belt 6, and the camshaft is on camshaft
  • a cambered cam 8 is installed on 10, the cambered camshaft 10 is supported by a bearing seat 9;
  • the cambered cam 8 is located inside the driven plate 1, and the trapezoidal groove 11 on the cambered cam is in contact with the roller 3 on the driven plate , Forming an internal meshing transmission mode;
  • the roller 3 is threadedly connected to the driven disk 1 through the hexagonal nut 2 and radiates inward;
  • the cambered cam 8 rotates to drive the driven disk 1 to achieve indexing motion with a large reduction
  • the bearing one 17 realizes the axial positioning of the inner ring by the shaft end retaining ring 13, and the bearing outer ring of the bearing one 17, the bearing two 18 and
  • the bearing seat 16 is matched, and the bearing seat 16 is connected with the connecting flange 12 by screws 15 to achieve relative fixation; when installing the bearing, first install the bearing 18 on the outside of the driven plate 1, then install the bearing seat 16, and then install the bearing One 17, the shaft end retaining ring 13, and finally the bearing seat 16 is installed on the connecting flange 12 to realize the installation and positioning of the supporting bearing.
  • the driven disk connecting hole 19 on the driven disk 1 is used to connect the indexing movement of the driven disk with other parts to realize the motion output.
  • the roller 3 adopts a spherical cone roller.
  • the transmission device includes a driving pulley 5 connected with a motor, the driving pulley 5 is connected to the driven pulley 7 through a transmission belt 6; the driven pulley 7 and the camber 8 are coaxially installed.
  • the bearing includes bearing one 17 and bearing two 18; both bearing one 17 and bearing two 18 are provided with a shaft end retaining ring 13 outside.
  • the motor and the transmission device drive the cambered cam to rotate, and the cambered cam engages with the inwardly radiating rollers.
  • the cambered cam drives the driven disc to rotate to realize the inner meshing transmission of the driven disc and realize the deceleration and rotation of the driven disc. Bit movement.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

内弧面凸轮机构转位装置，包括由电机(4)及传动装置带动的弧面凸轮(8)，与弧面凸轮(8)相配合的向内辐射的滚子(3)从动盘(1)，与从动盘(1)相连接的轴承及轴承座(16)，轴承座(16)安装于连接法兰(12)上；电机(4)通过传动装置带动内弧面凸轮(8)转动，弧面凸轮(8)上的梯形槽面与向内辐射的球锥滚子相配合，实现从动盘(1)的减速运动，从动盘(1)与轴承内圈配合，轴承外圈固定于轴承座(16)中；电机(4)、传动装置及弧面凸轮(8)全部位于从动盘(1)内部，大大的降低了整体结构对空间的占用，体积小，结构紧凑，实用性强。

Description

内弧面凸轮机构转位装置 技术领域
本发明涉及一种内弧面凸轮机构转位装置，是一种基于内啮合的弧面凸轮机构减速转位装置。
背景技术
转位装置在加工中心、数控机床、机械手及产品的生产线上等领域都有广泛的应用，精确的转位及分度尤其重要。弧面凸轮机构能够在高速运动下承受较大的载荷，运转平稳，噪声和振动都很小，在动力学性能、承载能力、分度精度等方面均有不可比拟的优越性，但现有的外啮合弧面凸轮机构占空间大，应用场合受到限制。本发明提出内啮合的内弧面凸轮机构，不仅具有普通外啮合弧面凸轮机构的优点，而且体积小，结构紧凑。
发明内容
为克服上述现有技术的不足，本发明的目的在于提供内弧面凸轮机构转位装置，具有结构简单、紧凑、承载能力大、相对可靠的特点。
为实现上述目的，本发明采用的技术方案是：包括电机、弧面凸轮，与弧面凸轮相配合的从动盘；其特征在于，电机通过传动装置带动的弧面凸轮；电机、弧面凸轮及传动装置均位于从动盘的圈内，弧面凸轮与滚子向内辐射的从动盘内啮合；从动盘与轴承的内圈相配合，轴承外圈固定于轴承座中，轴承座安装于连接法兰上。
所述的从动盘通过滚子与弧面凸轮上的梯形沟槽相啮合。
所述的滚子为球锥滚子。
所述的传动装置包括与电机相连的主动带轮，主动带轮通过传动带与从动带轮相连；从动带轮与弧面凸轮同轴安装。
所述的轴承包括轴承一、轴承二；轴承一、轴承二外侧均设有一轴端挡板。
所述的弧面凸轮安装在弧面凸轮轴上，弧面凸轮轴两端由轴承座支撑。
与现有技术相比，本发明的有益效果是：
通过以下方式实现，电机及传动装置带动的弧面凸轮，与之相配合的从动盘，从动盘上的滚子向内辐射，弧面凸轮位于从动盘内侧，弧面凸轮上的梯形沟槽与 从动盘上的球锥滚子形成内啮合，实现从动盘大减速比的平稳转动。从动盘与轴承内圈相配合，轴承外圈固定于轴承座中，轴承座安装于连接法兰上，所述的内弧面凸轮机构实现从动盘的减速转动。连接法兰可安装在需要实现精确转位运动的场合。电机及传动装置均布置在从动盘内部，大大的降低了整体结构对空间的占用，体积小，整体结构紧凑，实用性强。
附图说明
图1是本发明的原理示意图。
图2是本发明的结构俯视图。
图3是本发明的结构左视图。
图4是本发明的结构左视图局部放大图。
图中：1‐从动盘、2‐六角螺母、3‐滚子、4‐电机、5‐主动带轮、6‐传动带、7‐从动带轮、8‐弧面凸轮、9‐轴承座、10‐弧面凸轮轴、11‐弧面凸轮梯形沟槽、12‐连接法兰、13‐轴端挡圈、14‐法兰连接孔、15‐螺钉、16‐轴承座、17‐圆锥滚子轴承、18‐圆锥滚子轴承、19‐从动盘连接孔。
具体实施方式
下面结合附图对本发明的结构原理和工作原理作进一步详细说明。
参见图1～3，内弧面凸轮机构转位装置，包括电机4，带传动6，弧面凸轮8，滚子向内辐射的从动盘1，与从动盘相配合的轴承一17和轴承二18，支撑轴承座16，连接法兰14；电机及带传动安装于从动盘1内侧，电机4带动主动带轮5，通过传动带6带动从动带轮7转动，在弧面凸轮轴10上安装弧面凸轮8，弧面凸轮轴10由轴承座9支撑；弧面凸轮8位于从动盘1内侧，弧面凸轮上的梯形沟槽11与从动盘上的滚子3相接触，形成内啮合的传动方式；滚子3通过六角螺母2螺纹连接在从动盘1上，并向内辐射；弧面凸轮8转动带动从动盘1实现大减速比的转位运动；从动盘1与轴承一17、轴承二18内圈相配合，实现轴承内圈转动，轴承一17由轴端挡圈13实现内圈的轴向定位，轴承一17、轴承二18的轴承外圈与轴承座16相配合，轴承座16通过螺钉15与连接法兰12相连，以实现相对固定；安装轴承时，先在从动盘1外侧装入轴承18，接着安装轴承座16，再装入轴承一17，轴端挡圈13，最后将轴承座16安装于连接法兰12上，以实现支撑轴承的安装与定位。从动盘上1的从动盘连接孔19用于将 从动盘的转位运动与其它零件相连，以实现运动输出。
所述的滚子3采用球锥滚子。
所述的传动装置包括与电机相连的主动带轮5，主动带轮5通过传动带6与从动带轮7相连；从动带轮7与弧面凸轮8同轴安装。
所述的轴承包括轴承一17、轴承二18；轴承一17、轴承二18外侧均设有一轴端挡圈13。
弧面凸轮与从动盘内啮合的工作方式，从动盘上的滚子安装于从动盘上向内辐射，弧面凸轮位于从动盘内部，通过与从动盘的滚子啮合接触，实现从动盘转位。
本发明工作原理如下：
电机和传动装置带动弧面凸轮转动，通过弧面凸轮与向内辐射的滚子相啮合，弧面凸轮带动从动盘转动，实现从动盘的内啮合传动，实现从动盘的减速及转位运动。

Claims (6)

  1. 内弧面凸轮机构转位装置，包括电机(4)、弧面凸轮(8)，与弧面凸轮(8)相配合的从动盘；其特征在于，电机通过传动装置带动的弧面凸轮(8)；电机(4)、弧面凸轮(8)及传动装置均位于从动盘(1)的圈内，弧面凸轮(8)与滚子(3)向内辐射的从动盘(1)内啮合；从动盘与轴承的内圈相配合，轴承外圈固定于轴承座(16)中，轴承座安装于连接法兰(12)上。
  2. 根据权利要求1所述的内弧面凸轮机构转位装置，其特征在于，所述的从动盘(1)通过滚子(3)与弧面凸轮(8)上的梯形沟槽相啮合。
  3. 根据权利要求1所述的内弧面凸轮机构转位装置，其特征在于，所述的滚子(3)为球锥滚子。
  4. 根据权利要求1所述的内弧面凸轮机构转位装置，其特征在于，所述的传动装置包括与电机相连的主动带轮(5)，主动带轮(5)通过传动带(6)与从动带轮(7)相连；从动带轮(7)与弧面凸轮(8)同轴安装。
  5. 根据权利要求1所述的内弧面凸轮机构转位装置，其特征在于，所述的轴承包括轴承一(17)、轴承二(18)；轴承一(17)、轴承二(18)外侧均设有一轴端挡板(13)。
  6. 根据权利要求1所述的内弧面凸轮机构转位装置，其特征在于，所述的弧面凸轮(8)安装在弧面凸轮轴(10)上，弧面凸轮轴(10)两端由轴承座(9)支撑。
PCT/CN2020/072462 2019-04-02 2020-01-16 内弧面凸轮机构转位装置 WO2020199725A1 (zh)

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