WO2021135759A1 - 一种带传动的角度附件头 - Google Patents

一种带传动的角度附件头 Download PDF

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Publication number
WO2021135759A1
WO2021135759A1 PCT/CN2020/132120 CN2020132120W WO2021135759A1 WO 2021135759 A1 WO2021135759 A1 WO 2021135759A1 CN 2020132120 W CN2020132120 W CN 2020132120W WO 2021135759 A1 WO2021135759 A1 WO 2021135759A1
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WIPO (PCT)
Prior art keywords
main shaft
belt
angle
shaft
driven
Prior art date
Application number
PCT/CN2020/132120
Other languages
English (en)
French (fr)
Inventor
陈虎
邓鑫
杜长林
郭翠娟
李亚鹏
张海波
韦志鸿
孙宏伟
张国帅
宋明山
Original Assignee
科德数控股份有限公司
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Filing date
Publication date
Application filed by 科德数控股份有限公司 filed Critical 科德数控股份有限公司
Priority to JP2022539209A priority Critical patent/JP7397999B2/ja
Priority to EP20909382.2A priority patent/EP4086024A4/en
Priority to US17/788,899 priority patent/US20230032515A1/en
Priority to KR1020227020809A priority patent/KR20220110227A/ko
Publication of WO2021135759A1 publication Critical patent/WO2021135759A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/20—Adjusting or stopping working-spindles in a predetermined position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
    • B23Q1/52—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism a single rotating pair
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/043—Accessories for spindle drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/043—Accessories for spindle drives
    • B23Q5/045—Angle drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q2220/00—Machine tool components
    • B23Q2220/006—Spindle heads
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306664—Milling including means to infeed rotary cutter toward work
    • Y10T409/307672—Angularly adjustable cutter head

Definitions

  • the invention relates to the technical field of machine tool spindles, in particular to a belt-driven angle attachment head.
  • Deep cavity processing is often required in aerospace, defense and other fields.
  • existing machine tool spindles are generally installed on the machine tool at a fixed angle or need to be adjusted manually, which results in a large volume and is not suitable for deep cavity structures with narrow spaces. For processing.
  • the invention proposes a belt-driven angle attachment head, which solves the problems that the existing machine tool attachment head is bulky, has a complicated structure, and is not suitable for deep cavity processing.
  • a belt-driven angle accessory head comprising a casing, a power mechanism, a transmission mechanism and a main shaft; the power mechanism and the transmission mechanism are placed in the casing;
  • the power mechanism includes a servo motor and a reducer, the servo motor is connected to the reducer, and the input shaft of the reducer is perpendicular to the output shaft;
  • the transmission mechanism includes a driving wheel, a driving belt and a driven wheel, and the driving wheel is installed on the output shaft of the reducer;
  • One side of the main shaft is mounted on the casing through a rotating shaft, the driven wheel is mounted on the end of the rotating shaft away from the main shaft, the driving wheel and the driven wheel are connected by the transmission belt, and the main shaft And the power mechanism is located on the same side of the transmission mechanism.
  • one end of the casing is a main shaft mounting end
  • the main shaft mounting end is provided with a main shaft mounting part
  • the main shaft is mounted on the main shaft mounting part through a rotating shaft
  • the main shaft and the driven wheel are placed The two sides of the main shaft mounting part.
  • a clamping device for clamping the main shaft is installed on one side of the main shaft mounting portion where the driven wheel is provided, and the clamping device is placed between the main shaft mounting portion and the driven wheel.
  • the clamping device is a pneumatic shaft clamping device.
  • one end of the rotating shaft connected with the main shaft is provided with a fixed disk, the rotating shaft is fixedly connected with the main shaft through the fixed disk, and a side of the fixed disk facing the driven wheel is installed with a measuring station.
  • the angle measuring system for the swing angle of the spindle is provided with a fixed disk, the rotating shaft is fixedly connected with the main shaft through the fixed disk, and a side of the fixed disk facing the driven wheel is installed with a measuring station.
  • the angle measurement system includes a circular grating and a reading head, the circular grating is installed on the fixed plate, and the reading head is installed on the spindle installation part
  • the side of the main shaft mounting portion facing the main shaft is further provided with an angle measurement system accommodating cavity, the reading head is installed on the inner wall of the angle measurement system accommodating cavity, and the circular grating is installed on the fixed On the disk and in the direction of the axis of the rotation shaft, part of the circular grating is placed in the accommodating cavity of the angle measurement system.
  • the belt-driven angle attachment head of the present invention has the following advantages: the servo motor is arranged longitudinally (in a vertical state), and the main shaft is driven by the reducer and the belt transmission structure, so that the main shaft is at the output shaft of the servo motor In the space of the extended line, the space occupied by the servo motor and the spindle is reduced, and the volume of the swing attachment head is reduced, so that the spindle can enter a small space.
  • the belt transmission structure can drive the spindle to swing, it is convenient
  • the deep cavity is processed, and at the same time, it has the advantages of simple structure, convenient assembly and maintenance, and low manufacturing cost.
  • Figure 1 is a structural diagram of a belt-driven angle attachment head provided by the present invention
  • Figure 2 is a front view of the belt-driven angle attachment head provided by the present invention.
  • Fig. 3 is a schematic diagram of the swing angle range of the belt-driven angle attachment head provided by the present invention.
  • Figures 1 and 2 show the belt-driven angle attachment head disclosed in the present invention, which includes a casing 1, a power mechanism, a transmission mechanism, and a main shaft 30; the power mechanism and the transmission mechanism are placed in the casing 1;
  • the casing 1 has a long and narrow cavity structure, one end of the casing 1 (the lower end in the figure) is provided with a spindle mounting portion 11, and the spindle mounting portion 11 deviates from the center position of the casing ( That is, the spindle mounting portion is provided on the side of the lower end of the casing), and a spindle accommodating space 12 in which the spindle can be installed is formed between the lower portion of the casing and the spindle mounting portion.
  • the power mechanism and the transmission mechanism are installed in the casing 1; specifically, the power mechanism includes a servo motor 20 and a reducer 21.
  • the servo motor 20 is longitudinally arranged in the casing 1 (that is, the output shaft of the servo motor and the The length of the casing is the same), the output shaft of the servo motor 20 is connected to the input shaft of the reducer 21, and the input shaft of the reducer 21 is arranged perpendicular to the output shaft;
  • the transmission mechanism includes a driving wheel 22, The transmission belt 23 and the driven wheel 23, the drive wheel 22 is installed on the output shaft of the reducer 21;
  • the main shaft 30 is placed in the main shaft accommodating space 12, and one side wall of the main shaft 30 is fixed to one end of the rotating shaft 31
  • one end of the rotating shaft 31 is provided with a fixed disc 310 (flange structure), the main shaft 30 is fixedly connected to the fixed disc 310 by bolts, the main shaft mounting portion 11 is provided with a bearing installation hole, and the rotating shaft 31 is installed There
  • the main shaft is installed on the casing through the rotating shaft, so that the servo motor and the main shaft are located on the same side of the transmission mechanism (that is, the main shaft is located in the extending direction of the output shaft of the servo motor).
  • the servo motor is arranged longitudinally, and the main shaft is driven by the speed reducer and the belt transmission mechanism with the input shaft and the output shaft perpendicular, so that the servo motor, the speed reducer and the main shaft are arranged approximately linearly, the width of the swing shaft can be reduced, and the main shaft becomes The long and narrow structure arrangement makes it easy to extend into the deep cavity.
  • the servo motor can drive the main shaft to swing around the central axis of the rotating shaft through the reducer and belt transmission structure.
  • Figure 3 when the length of the main shaft mounting part is long enough, that is, The spindle swing does not interfere with the housing, and the spindle can swing at a large angle.
  • the figure shows that the angle a of the accessory head can swing in both directions up to 90 to 120 degrees, that is, the swing angle of the spindle can reach 180 to 240 degrees.
  • the swing can cross the horizontal line and swing up to an angle b up to 30 degrees, which can facilitate the processing of deep cavities.
  • the transmission mechanism can adopt friction-type belt transmission (flat belt, V-belt, etc.).
  • the transmission structure adopts meshing belt transmission (synchronous belt structure transmission), and the synchronous belt structure can ensure the accuracy of the transmission. .
  • a clamping device 4 for clamping the main shaft is installed on the side of the main shaft mounting portion 11 where the driven wheel 24 is provided, and the clamping device 4 is placed on the main shaft mounting portion 11 and the slave Between the moving wheels 24.
  • the clamping device 4 is a pneumatic shaft clamping device.
  • the pneumatic shaft clamping device is installed on the main shaft mounting part and sleeved on the rotating shaft.
  • the clamping device 4 can be used to clamp and loosen the rotating shaft. , Which can realize the clamping and unclamping of the main shaft, so that when the main shaft rotates, the clamping device releases the rotating shaft, and the main shaft swing is controlled by the transmission shaft. When the main shaft swings for a certain angle, the clamping device clamps and rotates.
  • the pneumatic shaft clamping device is used to ensure that the attachment head is clean and free from hydraulic oil pollution.
  • angle measuring system 5 for measuring the swing angle of the spindle is installed on one side of the angle measuring system.
  • the angle measuring system 5 uses a circular induction synchronizer.
  • the angle measuring system 5 includes a circular grating 50 and a reading head 51.
  • the circular grating 50 is mounted on the fixed disk 310, and the reading head 51 is mounted on the spindle mounting portion 11.
  • the detection of the swing angle of the spindle can be realized, so as to realize the closed-loop control of the spindle and improve the swing accuracy of the spindle.
  • the circular grating is installed on the fixed disk (close to the bearing attachment), the rotation accuracy is high, and it is not affected by the spindle cutting force and the input end transmission belt tension force, and directly measures the spindle swing angle, which improves the positioning accuracy.
  • the side of the spindle mounting portion 11 facing the spindle 30 is further provided with an angle measurement system accommodating cavity 14, the reading head 51 is installed on the inner wall of the angle measurement system accommodating cavity 14, and the circular grating 50 is installed on the fixed disk 310, and in the direction of the axis of the rotation shaft, part of the circular grating 50 is placed in the angle measurement system accommodating cavity 14. Since the angle measurement system accommodating cavity is provided, the angle measurement system can be placed in it, and the width of the accessory head is further reduced, facilitating deep cavity structure processing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Turning (AREA)
  • Machine Tool Units (AREA)

Abstract

一种带传动的角度附件头，包括机壳（1）、动力机构、传动机构以及主轴（30）；动力机构和传动机构置于机壳（1）内；动力机构包括伺服电机（20）和减速机（21），伺服电机（20）与减速机（21）连接，减速机（21）的输入轴与输出轴垂直设置；传动机构包括主动轮（22）、传动带（23）以及从动轮（24），减速机（21）的输出轴上安装有主动轮（22）；主轴（30）的一侧通过转动轴（31）安装在机壳（1）上，转动轴（31）远离主轴（30）的一端安装有从动轮（24），主动轮（22）和从动轮（24）通过传动带（23）连接，主轴（30）和动力机构位于传动机构的同侧。该附件头具有体积小，结构简单，适于深腔加工等优点。

Description

一种带传动的角度附件头 技术领域
本发明涉及机床主轴技术领域，具体涉及一种带传动的角度附件头。
背景技术
在航空、国防等领域经常需要进行深腔加工，然而现有的机床主轴一般以固定角度安装在机床上，或者需要通过手动进行角度调整，进而造成体积庞大，不适于对空间狭小的深腔结构进行加工。
发明内容
本发明提出了一种带传动的角度附件头，解决了现有的机床附件头体积庞大，结构复杂，不适于进行深腔加工的问题。
本发明采用的技术手段如下：
一种带传动的角度附件头，包括机壳、动力机构、传动机构以及主轴；所述动力机构和传动机构置于所述机壳内；
所述动力机构包括伺服电机和减速机，所述伺服电机与所述减速机连接，所述减速机的输入轴与输出轴垂直设置；
所述传动机构包括主动轮、传动带以及从动轮，所述减速机的输出轴上安装有所述主动轮；
所述主轴的一侧通过转动轴安装在所述机壳上，所述转动轴远离主轴的一端安装有所述从动轮，所述主动轮和所述从动轮通过所述传动带连接，所述主轴和所述动力机构位于所述传动机构的同侧。
进一步地，所述机壳的一端为主轴安装端，所述主轴安装端设有主轴安装部，所述主轴通过转动轴安装在所述主轴安装部上，所述主轴和所述从动轮置于所述主轴安装部的两侧。
进一步地，所述主轴安装部设有从动轮的一侧还安装有用于对所述主轴进行夹紧的夹紧装置，所述夹紧装置置于所述主轴安装部和从动轮之间。
进一步地，所述夹紧装置为气动轴夹紧装置。
进一步地，所述转动轴与所述主轴连接的一端设有固定盘，所述转动轴通过所述固定盘与所述主轴固定连接，所述固定盘朝向从动轮的一侧安装有用于测量所述主轴摆动角度的角度测量***。
进一步地，所述角度测量***包括圆光栅和读数头，所述圆光栅安装在所述固定盘上，所述读数头安装在所述主轴安装部上
进一步地，所述主轴安装部朝向所述主轴的一侧还设有角度测量***容纳腔，所述读数头安装在所述角度测量***容纳腔的内壁上，所述圆光栅安装在所述固定盘上，且在转动轴轴线方向上，部分所述圆光栅置于所述角度测量***容纳腔中。
与现有技术比较，本发明所述的带传动的角度附件头具有以下优点，伺服电机纵向设置(处于立式状态)，并通过减速机和带传动结构驱动主轴，使得主轴处于伺服电机输出轴的延长线的空间内，减小了伺服电机和主轴占用的空间，缩小了摆动附件头的体积，使得主轴可以进入狭小的空间内，同时由于带传动结构可以驱动主轴摆动，因此，可以方便的对深腔进行加工，同时，具有结构简单，装配维修方便，制造成本低等优点。
附图说明
图1为本发明提供的带传动的角度附件头的结构图；
图2为本发明提供的带传动的角度附件头的主视图；
图3为本发明提供的带传动的角度附件头可实现摆动角度范围的示意图。
图中：1、机壳，11、主轴安装部，12、主轴容纳空间，13、主轴安装端，14、角度测量***容纳腔，20、伺服电机，21、减速机，22、主动轮，23、传动带，24、从动轮，25、安装板，30、主轴，31、转动轴，310、固定盘，32、轴承，4、夹紧装置，5、角度测量***，50、圆光栅，51、读数头。
具体实施方式
如图1和图2所示为本发明公开的带传动的角度附件头，包括机壳1、动力机构、传动机构以及主轴30；所述动力机构和传动机构置于所述机壳1内；如图所示，在本实施例中，机壳1为狭长的腔体结构，机壳1的一端(图中为下端)的设有主轴安装部11，主轴安装部11偏离机壳中心位置(即主轴安装部设置在机壳下端的侧部)，机壳的下部与主轴安装部之间形成了可以设置主轴的主轴容纳空间12。
所述动力机构和传动机构安装在所述机壳1内；具体地，所述动力机构包括伺服电机20和减速机21，伺服电机20纵向设置在机壳1内(即伺服电机的输出轴与机壳的长度方向一致)，所述伺服电机20的输出轴与所述减速机21的 输入轴连接，所述减速机21的输入轴与输出轴垂直设置；所述传动机构包括主动轮22、传动带23以及从动轮23，所述减速机21的输出轴上安装有所述主动轮22；主轴30置于主轴容纳空间12中，所述主轴30的一侧壁上与转动轴31的一端固定，在本实施例中，转动轴31的一端设有固定盘310(法兰结构)，主轴30通过螺栓与固定盘310固定连接，主轴安装部11上设有轴承安装孔，转动轴31上安装有轴承32，轴承32安装在轴承安装孔中，转动轴31的另一端安装有从动轮24，主动轮22和从动轮24之间通过传动带23连接。主轴通过转动轴安装在机壳上，使得伺服电机和主轴位于传动机构的同侧(即主轴位于伺服电机输出轴的延长的方向处)。本发明通过将伺服电机纵向设置，并且通过输入轴与输出轴垂直的减速机以及带传动机构驱动主轴，使得伺服电机、减速机和主轴近似于线性布置，可以缩小摆动轴的宽度，使得主轴成狭长结构布置，便于伸入深腔中，同时，伺服电机可以通过减速机和带传动结构驱动主轴以转动轴的中心轴线进行摆动，如图3所示，主轴安装部的长度足够长时，即主轴摆动不与机壳发生干涉，主轴可以实现大角度的摆动，图中示出附件头可以双向摆动的角度a达到90至120度，即主轴的摆动角度可以达到180度至240度，主轴的摆动可以越过水平线向上摆动角度b达到30度，可以方便的对深腔进行加工。传动机构可以采用摩擦型带传动(平带、V带等结构)，在本实施例中，传动结构采用啮合型带传动(同步带结构传动)，采用同步带结构进行传动可以保证传动是精确性。
进一步地，所述主轴安装部11设有从动轮24的一侧还安装有用于对所述主轴进行夹紧的夹紧装置4，所述夹紧装置4置于所述主轴安装部11和从动轮24之间。优选地，所述夹紧装置4为气动轴夹紧装置，气动轴夹紧装置安装在主轴安装部上并套在转动轴上，通过设置夹紧装置4可以实现对转动轴夹紧和松开，进而可以实现对主轴的夹紧和松开，以便于在主轴转动时，夹紧装置对转动轴松开，通过传动轴控制主轴摆动，当主轴摆动一定角度后，夹紧装置夹紧转动时，以便于主轴进行加工，本实施例中，采用气动轴夹紧装置可以保证附件头的干净，没有液压油污染。
进一步地，所述转动轴31与所述主轴30连接的一端设有固定盘310，所述转动轴31通过所述固定盘310与所述主轴30固定连接，所述固定盘310朝向从动轮24的一侧安装有用于测量所述主轴摆动角度的角度测量***5，角度测量***5采用圆感应同步器，本实施例中，所述角度测量***5包括圆光栅50 和读数头51，所述圆光栅50安装在所述固定盘310上，所述读数头51安装在所述主轴安装部11上。通过设置角度测量***，可以实现对主轴摆动角度的检测，以实现对主轴的闭环控制，提高了主轴的摆动精度。同时，由于圆光栅安装在固定盘上(靠近轴承附件)，旋转精度高，不受主轴切削力以及输入端传动带张紧力的影响，直接对主轴摆动角度进行测量，提高了定位精度。
进一步地，所述主轴安装部11朝向所述主轴30的一侧还设有角度测量***容纳腔14，所述读数头51安装在所述角度测量***容纳腔14的内壁上，所述圆光栅50安装在所述固定盘310上，且在转动轴轴线方向上，部分所述圆光栅50置于所述角度测量***容纳腔14中。由于设置角度测量***容纳腔，可以使得角度测量***置于其中，进一步的减小附件头的宽度，便于进行深腔结构加工。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。

Claims (7)

  1. 一种带传动的角度附件头，包括机壳(1)、动力机构、传动机构以及主轴(30)；所述动力机构和传动机构置于所述机壳(1)内；其特征在于：
    所述动力机构包括伺服电机(20)和减速机(21)，所述伺服电机(20)与所述减速机(21)连接，所述减速机(21)的输入轴与输出轴垂直设置；
    所述传动机构包括主动轮(22)、传动带(23)以及从动轮(24)，所述减速机(21)的输出轴上安装有所述主动轮(22)；
    所述主轴(30)的一侧通过转动轴(31)安装在所述机壳(1)上，所述转动轴(31)远离主轴的一端安装有所述从动轮(24)，所述主动轮(22)和所述从动轮(24)通过所述传动带(23)连接，所述主轴(30)和所述动力机构位于所述传动机构的同侧。
  2. 根据权利要求1所述的带传动的角度附件头，其特征在于：所述机壳(1)的一端为主轴安装端(13)，所述主轴安装端(13)设有主轴安装部(11)，所述主轴(30)通过转动轴(31)安装在所述主轴安装部(11)上，所述主轴(30)和所述从动轮(24)置于所述主轴安装部(11)的两侧。
  3. 根据权利要求2所述的带传动的角度附件头，其特征在于：所述主轴安装部(11)设有从动轮(24)的一侧还安装有用于对所述主轴进行夹紧的夹紧装置，所述夹紧装置置于所述主轴安装部(11)和从动轮(24)之间。
  4. 根据权利要求3所述的带传动的角度附件头，其特征在于：所述夹紧装置为气动轴夹紧装置。
  5. 根据权利要求2至4中任意一项所述的带传动的角度附件头，其特征在于：所述转动轴(31)与所述主轴(30)连接的一端设有固定盘(310)，所述转动轴(31)通过所述固定盘(310)与所述主轴(30)固定连接，所述固定盘(310)朝向从动轮(24)的一侧安装有用于测量所述主轴摆动角度的角度测量***(5)。
  6. 根据权利要求5所述的带传动的角度附件头，其特征在于：所述角度测量***(5)包括圆光栅(50)和读数头(51)，所述圆光栅(50)安装在所述固定盘(310)上，所述读数头(51)安装在所述主轴安装部(11)上。
  7. 根据权利要求6所述的带传动的角度附件头，其特征在于：所述主轴安装部(11)朝向所述主轴(30)的一侧还设有角度测量***容纳腔(14)，所述读数头(51)安装在所述角度测量***容纳腔(14)的内壁上，所述圆光栅安装在所述固定盘(310)上，且在转动轴轴线方向上，部分所述圆光栅置于所述 角度测量***容纳腔(14)中。
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