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WO2006108342A1 - A grooved cam - Google Patents

A grooved cam Download PDF

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Publication number
WO2006108342A1
WO2006108342A1 PCT/CN2006/000528 CN2006000528W WO2006108342A1 WO 2006108342 A1 WO2006108342 A1 WO 2006108342A1 CN 2006000528 W CN2006000528 W CN 2006000528W WO 2006108342 A1 WO2006108342 A1 WO 2006108342A1
Authority
WO
WIPO (PCT)
Prior art keywords
cam
bushing
inner groove
upper cam
lower cam
Prior art date
Application number
PCT/CN2006/000528
Other languages
French (fr)
Chinese (zh)
Inventor
Liang Fang
Original Assignee
Liang Fang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liang Fang filed Critical Liang Fang
Publication of WO2006108342A1 publication Critical patent/WO2006108342A1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H25/00Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/186Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions with reciprocation along the axis of oscillation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D11/00Portable percussive tools with electromotor or other motor drive
    • B25D11/06Means for driving the impulse member
    • B25D11/10Means for driving the impulse member comprising a cam mechanism
    • B25D11/102Means for driving the impulse member comprising a cam mechanism the rotating axis of the cam member being coaxial with the axis of the tool
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H25/00Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/08Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion
    • F16H25/12Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion with reciprocation along the axis of rotation, e.g. gearings with helical grooves and automatic reversal or cams

Definitions

  • the utility model relates to a novel inner groove cam, in particular to a novel inner groove cam for generating a linear motion output of a power tool. It belongs to the transformation technology of the inner groove. .
  • the mechanism that currently produces linear motion output is mainly the crank slider mechanism. Due to the large number of hinges, the rotating shaft is mostly a cantilever shaft, and its output characteristics are poorly commutated, so the processing cost is high and wear is easy, and the noise is large, and the balance slider is often required, resulting in a complicated structure.
  • An object of the present invention is to provide an inner groove cam that effectively changes the motion law, improves the 'work reliability, eliminates noise, and simplifies the machining process, thereby reducing the manufacturing cost, in consideration of the above problems.
  • the schematic diagram of the utility model is shown in the drawing, and includes an upper cam (3 ⁇ ) and a lower cam (3 ⁇ bushing (8), wherein one ends of the upper cam (3 ⁇ ) and the lower cam (3 ⁇ ) are perpendicular to the shaft The plane of the heart line, the other end is made into a working surface with lift and return stroke, and the upper cam ( 3 ⁇ ) and the lower cam UB are respectively inserted into the bushing (8) from the two ends of the bushing (8).
  • the highest point of the cavity and the upper cam (3 ⁇ ) working surface is opposite to the lowest point of the lower cam (3 ⁇ ) working surface, and the working surfaces of the upper and lower cams and the inner surface of the bushing (8) are surrounded by the lift And returning - closing the inner ring groove. .
  • the upper cam (3 ⁇ ) and lower cam ( ⁇ 3 ⁇ ) working surfaces are envelope surfaces that change the acceleration of the follower by a sine gauge. : ' ⁇
  • the sum of the rise and return wrap angles of the upper cam (3 ⁇ ) and the lower cam (3 ⁇ ) is '360°, wherein the lift wrap angle is any element line on the lift surface in the inner groove cam structure.
  • the angle of the circle corresponding to the obtained arc segment, the wrap angle of the return path is the center angle of the arc segment of the projection in the axial direction of the inner groove of the inner groove of the inner groove cam structure, and the return wrap angles may be equal or unequal.
  • the upper cam (3A) and the lower cam (3B) are radially distributed with more than one fixed position bump (3C) at one end of the plane, and the end faces of the bushing (8) correspond to the cam positioning protrusions (3C). There is a positioning notch (8A) in the position. ''''
  • the sleeve (8) is provided with a positioning protrusion (8A) on the end surface of the bushing (8), and a positioning bump which is distributed in the radial direction of the upper cam (3A) and the lower cam (3B) at one end of the plane ( 3C)
  • the dimensions are the same.
  • the utility model comprises an upper cam and a lower cam, wherein the upper cam and the lower cam respectively fit into the inner cavity of the bushing from the two ends of the bushing respectively, so that the working surface of the upper and lower cams and the inner cavity of the bushing
  • the structure of the closed annular inner wheel groove having the lift and the return stroke can effectively change the activation law, improve the work reliability, eliminate the noise, and simplify the machining process, thereby reducing the manufacturing cost.
  • the utility model has the advantages of convenient processing and simple assembly, and is an in-vehicle cam which is ingeniously designed and convenient and practical.
  • FIG. 1 is a schematic view of the structure of the present invention.
  • FIG. 2 is a schematic structural view of a middle upper cam (3A) and a lower cam (3B) according to the present invention
  • Figure 3 is a top view of Figure 2;
  • Figure 4 is a schematic view of the structure of the bushing (8)
  • Figure 5 is a plan view of Figure 4.
  • Figure 6 is a schematic view showing the structure of the utility model applied to a power tool. .
  • the structure of the utility model is shown in Figs. 1, 2, and 3, and includes an upper cam 3A, a lower cam 3B, and a bushing 8, wherein one ends of the upper cam 3.A and the lower cam 3B are perpendicular to the axial center.
  • the plane of the line, 'the other end is made into a working surface having a lift and a return stroke, and the upper cam 3 and the lower cam 3B are respectively fitted into the inner cavity of the bushing 8 from both ends of the bushing 8, respectively, and the upper cam 3A works.
  • the highest point of the curved surface is opposite to the lowest point of the working surface of the lower cam 3B, and the working surface of the upper and lower cams and the inner cavity of the bushing 8 are surrounded by lift and return
  • the closed annular inner wheel groove, 'the outer diameter of the upper and lower cams are equal to the inner diameter of the bushing.
  • the working surfaces of the upper cam 3A and the lower cam 3B are envelope surfaces that change the acceleration of the follower in a sinusoidal manner. '
  • the sum of the rise and return wrap angles of the upper cam 3A and the lower cam 3B described above is .360°.
  • the lift wrap angle is the central angle corresponding to the arc segment projected on the lift axis in the axial direction of the inner groove cam structure, and the return wrap angle is any linear line on the return path surface.
  • the central angle corresponding to the obtained arc segment is projected in the direction, and the rise and return wrap angles may be equal or unequal.
  • the elevation and return wrap angles of the working surface are both 180°. ⁇ ' .
  • the upper cam 3A and the lower cam 3B are radially distributed with one or more positioning projections 3C at one end of the plane, and the end faces of the bushings 8 are provided with positioning notches 8A corresponding to the positions of the cam projections.
  • the axial relative positions of the upper and lower cams are ensured by the corresponding positioning positions of the cam positioning projections and the bushings.
  • the size of the positioning notch 8A provided at the end faces of the bushing 8 coincides with the size of the positioning cam 3C of the upper cam 3A and the lower cam 3B at the one end of the plane.
  • the utility model of the utility model is shown in Fig. 0, wherein the utility model and the solid, fixed shaft 2, the slider 4, the guide rod 5, the bearing bush 6, the frame 7 and the like constitute a reciprocating linear motion output device, wherein The inner cavity of the inner groove cam 3 is fitted on the outer cylindrical surface of the fixed shaft 2, and is rotatable around the fixed shaft 2.
  • the bushing 8 is fitted on the outer wall of the inner groove cam 3, and the outer cylindrical side of the fixed shaft 1 is axially opened.
  • the inner groove cam structure has a stroke of 25 mm
  • the inner hole diameter is 37 mm
  • the working surface has a lift and return wrap angle of 180°
  • the outer diameter of the bushing is 5 : 0 ram.
  • the motor drives the inner groove cam 3 through the gear system to rotate, and the fixed shaft 2 does not move.
  • the working surface of the inner groove cam 3 pushes the guide rod 5 to reciprocate linear motion through the cylindrical surface on the slider 4, and the guiding action of the through hole of the fixed shaft 2 - the end bearing bush 6 and the through groove of the fixed shaft 2 axial section pass through the sliding
  • the block limits the rotation of the guide rod 5, so the guide rod will be output in a reciprocating linear motion. As shown in Figure 6.

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

Abstract

A grooved cam includes an upper cam (3A), a lower cam (3B) and a bush (8), wherein one end of the upper cam (3A) and the lower cam (3B) is a plane which is perpendicular to the axis thereof and the other end is formed to a curved surface with a lift stroke and a return stroke. Moreover, the upper cam (3A) and the lower cam (3B) are inserted within the inner portion of the bush (8) from the two end of the bush, respectively, so that the highest point of the curved surface of the upper cam (3A) could be corresponding with the lowest point of the curved surface of the lower cam (3B). Therefore, there is a ring-shape closed inner groove between said curved surfaces of the upper cam and the lower cam and said inner portion of the bush (8), so as to form the lift stroke and the return stroke therein. Furthermore, said grooved cam according to the present invention has many advantages, such as high reliability, lower cost and simple process.

Description

一种新型内槽凸轮 技术领域  A new type of inner groove cam technology field
' 本实用新型是一种新型内槽凸轮, 特别是一种用于电动工具的产生直线运 动输出的新型内槽凸轮。 属于内槽 ή轮的改造技术。 .  The utility model relates to a novel inner groove cam, in particular to a novel inner groove cam for generating a linear motion output of a power tool. It belongs to the transformation technology of the inner groove. .
. 背景技术  . Background technique
' 目前产生直线运动输出的机构主要是曲柄滑块机构。 此机构因铰点多, 转 轴多为悬臂轴, 且其输出特性换向不良, 故加工成本高, 易磨损, '噪告大, 且 往往需附加平衡滑块, 造成结构复杂。  The mechanism that currently produces linear motion output is mainly the crank slider mechanism. Due to the large number of hinges, the rotating shaft is mostly a cantilever shaft, and its output characteristics are poorly commutated, so the processing cost is high and wear is easy, and the noise is large, and the balance slider is often required, resulting in a complicated structure.
发明内容 - 本实用新型的目的在于考虑上述问题而提供一种有效改变运动规律, 提高 '工作可靠性, 消除噪音并简化加工工艺, 从而降低制造成本的内槽凸轮。 · 本实用新型的结构示意图如附图所示,包括有上凸轮(3Α)、下凸轮(3Β 衬套(8) , 其中上凸轮(3Α)、 下凸轮(3Β)的一端均为垂直于轴心线的平面, 另一端做成具有升程和回程的工作曲面, 上凸轮(3Α) 、 下凸轮 UB)分别从 '衬套(8) 的两端分别套入衬套(8) 的内腔, 且上凸轮(3Α)工作曲面的最高 '· 点与下凸轮(3Β)工作曲面的最低点正对, 上、 下凸轮的工作曲面与衬套(8) 内腔围成了具有升程和回程的—闭舍环形内轮槽。 . SUMMARY OF THE INVENTION An object of the present invention is to provide an inner groove cam that effectively changes the motion law, improves the 'work reliability, eliminates noise, and simplifies the machining process, thereby reducing the manufacturing cost, in consideration of the above problems. The schematic diagram of the utility model is shown in the drawing, and includes an upper cam (3 Α) and a lower cam (3 衬套 bushing (8), wherein one ends of the upper cam (3 Α) and the lower cam (3 Β) are perpendicular to the shaft The plane of the heart line, the other end is made into a working surface with lift and return stroke, and the upper cam ( 3 Α) and the lower cam UB are respectively inserted into the bushing (8) from the two ends of the bushing (8). The highest point of the cavity and the upper cam (3Α) working surface is opposite to the lowest point of the lower cam (3Β) working surface, and the working surfaces of the upper and lower cams and the inner surface of the bushing (8) are surrounded by the lift And returning - closing the inner ring groove. .
上述上凸轮(3Α) 、 下凸轮(·3Β)工作曲面为使从动件的加速度按正弦规' 律变化的包络面。 : '·  The upper cam (3 Α) and lower cam (·3 Β) working surfaces are envelope surfaces that change the acceleration of the follower by a sine gauge. : '·
上述上凸轮 ( 3Α) 、 下凸轮(3Β) 的升、 回程包角之和为 '360° , 其中升 程包角为升程曲面上任一素线在内槽凸轮结构.转动轴向方向上投影所得弧段对 应的圆心角, 回程包角为回程曲面上任一素线 ^内槽凸轮结构转动轴向方向上 '投影所得弧段对应的圆心角, 升、.回程包角可相等或不等。 · ' 上述上凸轮(3A) 、 下凸轮(3B)在平面一端沿径向分布有一个以上的定. 位凸块(3C) , 衬套(8)两端端面对应于凸轮定位凸块(3C)的位置上设有定 位缺口 (8A) 。 ' ' ' The sum of the rise and return wrap angles of the upper cam (3Α) and the lower cam (3Β) is '360°, wherein the lift wrap angle is any element line on the lift surface in the inner groove cam structure. The angle of the circle corresponding to the obtained arc segment, the wrap angle of the return path is the center angle of the arc segment of the projection in the axial direction of the inner groove of the inner groove of the inner groove cam structure, and the return wrap angles may be equal or unequal. · ' The upper cam (3A) and the lower cam (3B) are radially distributed with more than one fixed position bump (3C) at one end of the plane, and the end faces of the bushing (8) correspond to the cam positioning protrusions (3C). There is a positioning notch (8A) in the position. '''
上述衬套(8) 两端端 '面上设有.的定位缺.口 (8A) 的、尺寸与上凸轮(3A) 、 下凸轮(3B)在平面一端沿径向分布的定位凸块(3C)尺寸一致。  The sleeve (8) is provided with a positioning protrusion (8A) on the end surface of the bushing (8), and a positioning bump which is distributed in the radial direction of the upper cam (3A) and the lower cam (3B) at one end of the plane ( 3C) The dimensions are the same.
本实用新型由于舉用包括有上凸轮、 下凸轮,,上凸轮、 下凸轮分别从衬套 的两端分别套入衬套的内腔, 使上、 下凸轮的工作曲面与衬套内腔围成了具有 升程和回程的闭合环形内轮槽的结构, 因此, 其可有效地改变造动规律, 提高 工 可靠性, 消除噪音, 并简化加工工艺, .从而降低制造成本。 本实用新型加 工方便, 装配简单, 是一种设计巧妙, 方便实用的内槽凸轮。  The utility model comprises an upper cam and a lower cam, wherein the upper cam and the lower cam respectively fit into the inner cavity of the bushing from the two ends of the bushing respectively, so that the working surface of the upper and lower cams and the inner cavity of the bushing The structure of the closed annular inner wheel groove having the lift and the return stroke can effectively change the activation law, improve the work reliability, eliminate the noise, and simplify the machining process, thereby reducing the manufacturing cost. The utility model has the advantages of convenient processing and simple assembly, and is an in-vehicle cam which is ingeniously designed and convenient and practical.
附图说明 .  BRIEF DESCRIPTION OF THE DRAWINGS
■ 图 1为本实用新型的结构示意图; ■ Figure 1 is a schematic view of the structure of the present invention;
图 2为本实用新型中上凸轮 (3A) 、 下凸轮(3B) 的结构示意图;  2 is a schematic structural view of a middle upper cam (3A) and a lower cam (3B) according to the present invention;
'图 3为图 2的俯视图;  'Figure 3 is a top view of Figure 2;
. 图 4为衬套(8)的结构示意图; '  Figure 4 is a schematic view of the structure of the bushing (8);
图 5为图 4的俯视图; .  Figure 5 is a plan view of Figure 4;
图 6为本实用新型应用在电动工具中的结构示意图。 .  Figure 6 is a schematic view showing the structure of the utility model applied to a power tool. .
• . 具体实施方式 .  • . detailed description .
实施例: . . '  Example: . . '
本实用新型的结构示意图如图 1、 2、 3所示, 包.括有上凸轮 3A、 下凸轮 3B、 衬套 8, 其中上凸轮 3.A、 下凸轮 3B的一端均为垂直于轴心线的平面, '另一 端做成具有升程和回程的工作曲面, 上凸轮 3 、 .下凸轮 3B分别从衬套 8的两 端分别套入衬套 8的内腔., 且上凸轮 3A工作曲面的最高点与下凸轮 3B工作曲 面的最低点正对, 上、 下凸轮的工作曲面与衬套 8内腔围成了具有升程和回程 的闭合环形内轮槽, '上、 下凸轮外径均等于衬套内径。 , 本实施例中, 上述上凸轮 3A、 下凸轮 3B工作曲面为使从动件的加速度按 正弦规律变化的包络面。 ' The structure of the utility model is shown in Figs. 1, 2, and 3, and includes an upper cam 3A, a lower cam 3B, and a bushing 8, wherein one ends of the upper cam 3.A and the lower cam 3B are perpendicular to the axial center. The plane of the line, 'the other end is made into a working surface having a lift and a return stroke, and the upper cam 3 and the lower cam 3B are respectively fitted into the inner cavity of the bushing 8 from both ends of the bushing 8, respectively, and the upper cam 3A works. The highest point of the curved surface is opposite to the lowest point of the working surface of the lower cam 3B, and the working surface of the upper and lower cams and the inner cavity of the bushing 8 are surrounded by lift and return The closed annular inner wheel groove, 'the outer diameter of the upper and lower cams are equal to the inner diameter of the bushing. In the present embodiment, the working surfaces of the upper cam 3A and the lower cam 3B are envelope surfaces that change the acceleration of the follower in a sinusoidal manner. '
' 上述上凸轮 3A、 下凸轮 3B的升、 回程包角之和为.360° 。 其中升程包角为' 升程曲面上任一素线在内槽凸轮结构转动轴向方向上投影所得弧段对应的圆心 角, 回程包角为回程曲面上任一素线在内槽凸轮结构转动轴向方向上投影所得 弧段对应的圆心角, 升、 回程包角可相等或不等。 本实施例中., 工作曲面的升 · 程和回程包角都为 180° 。 ■ ' .  The sum of the rise and return wrap angles of the upper cam 3A and the lower cam 3B described above is .360°. The lift wrap angle is the central angle corresponding to the arc segment projected on the lift axis in the axial direction of the inner groove cam structure, and the return wrap angle is any linear line on the return path surface. The central angle corresponding to the obtained arc segment is projected in the direction, and the rise and return wrap angles may be equal or unequal. In this embodiment, the elevation and return wrap angles of the working surface are both 180°. ■ ' .
为方便安装及定位, 上述上凸轮 3A、 下凸轮 3B在平面一端沿径向分布有 一个以上的定位凸块 3C , 衬套.8两端端面对应于凸轮凸块的位置上设有定位缺 口 8A, 如图 4、 5所示: 上、 下凸轮轴向相对位置则由凸轮定位凸块和衬套上 相应的缺口位置来保证。 衬套 8 两端端面设有的定位缺口 8A的尺寸与'上凸轮 3A、 下凸轮 3B在平面一端^径向分布的定位凸块 3C的尺寸一致。  In order to facilitate the installation and positioning, the upper cam 3A and the lower cam 3B are radially distributed with one or more positioning projections 3C at one end of the plane, and the end faces of the bushings 8 are provided with positioning notches 8A corresponding to the positions of the cam projections. As shown in Figures 4 and 5, the axial relative positions of the upper and lower cams are ensured by the corresponding positioning positions of the cam positioning projections and the bushings. The size of the positioning notch 8A provided at the end faces of the bushing 8 coincides with the size of the positioning cam 3C of the upper cam 3A and the lower cam 3B at the one end of the plane.
本实用新型用于电动工具的结构示意图如图 0所示, 其中本实用新型与固、 定轴 2、 滑块 4、 导杆 5、 轴瓦 6、 机架 7等组成往复直线运动输出装置, 其中 内槽凸轮 3的内腔套装在固定轴 2的外圆柱面上, 并可绕固定轴 2旋转, 衬套 8套装在内槽凸轮 3的外壁上,固定轴 1的外圆柱侧面沿轴向开有两条通槽 2Α'、 2Β, 固定轴 1的一端安装在在机架 7上,'且该端的中空内腔安装有轴瓦 6 , 轴 瓦 6的中间设有通孔, 滑块 4固.装在导杆 5上, 滑块 4的前端穿过固定轴 2通 槽 2Α插在内槽凸轮 3的内轮槽内, 滑块 4的后部穿过固定轴 2的通槽 2Β, 并 可在通槽 2Β内轴向滑动,导杆 5穿过轴瓦 6中间设有的通孔安装在固定轴 2的 .内腔,并可沿轴瓦 6的通孔轴向滑动。本实施例中, 内.槽凸轮结构行程为, 25 mm, 内孔直径为 37 mm, 工作曲面的.升程和回程包角都为 180° , 衬套外径 5: 0 ram。 The utility model of the utility model is shown in Fig. 0, wherein the utility model and the solid, fixed shaft 2, the slider 4, the guide rod 5, the bearing bush 6, the frame 7 and the like constitute a reciprocating linear motion output device, wherein The inner cavity of the inner groove cam 3 is fitted on the outer cylindrical surface of the fixed shaft 2, and is rotatable around the fixed shaft 2. The bushing 8 is fitted on the outer wall of the inner groove cam 3, and the outer cylindrical side of the fixed shaft 1 is axially opened. There are two through slots 2Α', 2Β, one end of the fixed shaft 1 is mounted on the frame 7, 'and the hollow inner cavity of the end is equipped with a bearing bush 6 , and a through hole is arranged in the middle of the bearing bush 6 , and the slider 4 is fixed On the guide rod 5, the front end of the slider 4 is inserted into the inner wheel groove of the inner groove cam 3 through the fixed shaft 2 through groove 2, and the rear portion of the slider 4 passes through the through groove 2 of the fixed shaft 2, and The inner groove of the through groove 2 is axially slid, and the guide rod 5 is installed in the inner cavity of the fixed shaft 2 through the through hole provided in the middle of the bearing pad 6, and can slide axially along the through hole of the bearing pad 6. In this embodiment, the inner groove cam structure has a stroke of 25 mm, the inner hole diameter is 37 mm, the working surface has a lift and return wrap angle of 180°, and the outer diameter of the bushing is 5 : 0 ram.
工作时, 电机通过齿轮系统驱动内槽凸轮 3转动, 固定轴 2不动, 这时, 内槽凸轮 3的工作曲面通过滑块 4上的圆柱面推动导杆 5作往复直线运动, 由 于固定轴 2—端轴瓦 6通孔的导向作用和固定轴 2轴截面方向上的通槽通过滑 块限制了导杆 5的转动, 所以, 导杆将作往复直线运动输出。 如图 6所示。 During operation, the motor drives the inner groove cam 3 through the gear system to rotate, and the fixed shaft 2 does not move. The working surface of the inner groove cam 3 pushes the guide rod 5 to reciprocate linear motion through the cylindrical surface on the slider 4, and the guiding action of the through hole of the fixed shaft 2 - the end bearing bush 6 and the through groove of the fixed shaft 2 axial section pass through the sliding The block limits the rotation of the guide rod 5, so the guide rod will be output in a reciprocating linear motion. As shown in Figure 6.

Claims

杈 ^ 要 求 书 杈^ request
1、 一种新型内槽凸轮, 其特征在于包括有上凸轮(3A) 、 下凸轮(3B) 、 衬套(8), 其中上凸轮 A)、 下凸轮 B)的一端均为垂直于轴心线的平面,A new type of inner groove cam, comprising: an upper cam (3A), a lower cam (3B), and a bushing ( 8 ), wherein one ends of the upper cam A) and the lower cam B) are perpendicular to the axis The plane of the line,
'另一端做成具有升程和回程的工作曲面, 上凸轮(3A) 、 下凸轮(3B)分别从 衬套(8) 的两端分别套入衬套(8) 的内腔, 且上凸轮—(3A)工作曲面的最高 点与下凸轮(3B)工作曲面的最低点正对, 上、 下凸轮的'工作曲面与衬套(8) 内腔围成了具有升程和回程的闭合环形内轮槽。 ― 'The other end is made into a working surface with lift and return. The upper cam (3A) and the lower cam (3B) are respectively inserted into the inner cavity of the bushing (8) from the two ends of the bushing (8), and the upper cam - (3A) The highest point of the working surface is opposite to the lowest point of the lower cam (3B) working surface, and the 'working surface of the upper and lower cams and the inner cavity of the bushing (8) enclose a closed ring with lift and return Inner wheel slot. ―
2、 根据权利要求 1 所述的内槽凸轮, 其特征在于上述上凸轮(3A) 、 下 凸轮(3B.)工作曲面.为使从动件的加速度按正弦规律变化的包络面。 ' The inner groove cam according to claim 1, wherein said upper cam (3A) and lower cam (3B.) working surfaces are enveloping surfaces for causing the acceleration of the follower to be sinusoidally changed. '
3、 根据权利要求 1所述的内槽凸轮, 其特征在于上述上凸轮(3A)、 下凸 轮 (3B) 的升、 回程包角之和为 360° 。 The inner groove cam according to claim 1, wherein the sum of the rising and returning wrap angles of said upper cam (3A) and lower cam (3B) is 360°.
4、根据杈利要求 1或 2或 3所述的内槽凸轮,其特征在于上述上凸轮( 3A )、 下凸轮 B)在平面一端沿径向分布有一个以上的定位凸块(3C) , 衬套(8) 两端端面对应于凸轮定位凸块(3C) 的位置上设有定位缺口 (8A) 。  4. The inner groove cam according to claim 1 or 2 or 3, wherein the upper cam (3A) and the lower cam B) are radially distributed with one or more positioning projections (3C) at one end of the plane. The bushing (8) has a positioning notch (8A) at the end face corresponding to the cam positioning projection (3C).
5、-根据权利要求 1所述的.内槽凸轮, 其特征在于上述衬套(8)·两端端面 上设有的定位缺口 (8A) 的尺寸与上凸轮(3A) 、 下凸轮(3B)在平面一端沿 径向分布的定位凸块(3C)尺寸一致。. '  5. The inner groove cam according to claim 1, wherein said bushing (8) has a positioning notch (8A) provided on both end faces thereof, and an upper cam (3A) and a lower cam (3B) The positioning bumps (3C) distributed radially at one end of the plane are uniform in size. . '
PCT/CN2006/000528 2005-04-11 2006-03-28 A grooved cam WO2006108342A1 (en)

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CNU2005200567738U CN2781092Y (en) 2005-04-11 2005-04-11 Internal slot cam

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EP2480143A1 (en) * 2009-09-24 2012-08-01 MedicineLodge, Inc. dba IMDS Co-Innovation Surgical rasping systems and methods
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