WO2019024705A1 - 数控机床转轴 - Google Patents

数控机床转轴 Download PDF

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Publication number
WO2019024705A1
WO2019024705A1 PCT/CN2018/096659 CN2018096659W WO2019024705A1 WO 2019024705 A1 WO2019024705 A1 WO 2019024705A1 CN 2018096659 W CN2018096659 W CN 2018096659W WO 2019024705 A1 WO2019024705 A1 WO 2019024705A1
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WO
WIPO (PCT)
Prior art keywords
rotor
gland
rotating shaft
numerical control
machine tool
Prior art date
Application number
PCT/CN2018/096659
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English (en)
French (fr)
Inventor
夏军
罗育银
叶李生
龙建澐
Original Assignee
深圳市创世纪机械有限公司
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Application filed by 深圳市创世纪机械有限公司 filed Critical 深圳市创世纪机械有限公司
Publication of WO2019024705A1 publication Critical patent/WO2019024705A1/zh

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Classifications

    • 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
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/28—Electric drives

Definitions

  • the present application relates to the field of machining technology, and in particular to a CNC machine tool shaft.
  • the range of parts that can be processed in the machining center is wider and wider, and more complex parts can be processed, but the hardness of the parts is much higher than before, and the precision is also higher and higher. Time requirements are becoming more and more strict. In particular, some parts of the surface need to be processed at different angles. Due to the high hardness, the three-axis plane processing is currently used, that is, only one angle surface can be processed at a time, and then Disassemble the product and re-position the features of other angles until all the features of the part have been processed. The fourth axis is added to the CNC machine table to facilitate the machining of the workpiece. After a single clamping, multiple surfaces can be processed with a high degree of automation.
  • the fourth axis of the CNC machine tool used in the industry is connected with the rotor as a whole, and the contact area is large.
  • the self-weight and force of the workpiece will have a certain influence on the fourth axis, thereby reducing the machining accuracy. And shorten the service life, and the stability of the shaft is poor.
  • the main purpose of the present application is to provide a CNC machine tool shaft to solve the problem that the existing shaft affects the machining accuracy and service life due to poor stability.
  • a numerical control machine tool shaft provided by the present application includes a rotating shaft, a first gland, an outer end cover, a casing, a bearing, a stator, a rotor and a rotor gland, wherein the rotating shaft passes through the bearing Accommodating and fixing in the outer end cover, and the first gland is pressed at an end of the rotating shaft, the outer end cover is fixed on the outer casing, and the rotor is received in the stator And being fixed to the outer casing together with the stator, the rotor gland being fixed to a side of the rotor away from the outer end cover, so that the rotor is connected to the rotating shaft through the rotor gland and driven The rotating shaft rotates.
  • an indexing wheel is further included, and the indexing wheel is connected to a surface of the rotor gland away from the side of the outer end cover.
  • a pneumatic brake device connected to the indexing wheel away from the side of the rotor gland is further included.
  • the pneumatic brake device includes a brake chassis, a brake disc, and a brake pad that are sequentially connected.
  • a second gland connected to the pneumatic brake device is further included, and the second gland is fixed to an outer side of the brake pad.
  • the utility model further includes a sleeve sleeved on the rotating shaft.
  • the bearing is a tapered roller bearing.
  • the rotor gland is a flange gland.
  • the indexing wheel is an encoder gear indexing wheel.
  • the rotating shaft is adjacent to one end of the first gland to clamp an external workpiece or to mount a rotating table.
  • the numerical control machine shaft of the present application is mounted on the outer end cover through a bearing to drive the rotating shaft to rotate, and the rotating shaft and the outer end cover are fixed on the outer casing to ensure the stability of the rotating shaft, and the shaft of the numerical control machine tool Internally, the rotor and the rotating shaft are fixed by the flange rotor gland, which reduces the contact surface between the rotor and the rotating shaft, thereby reducing the influence on the motor, effectively improving the machining accuracy of the rotating shaft and prolonging its service life.
  • FIG. 1 is a schematic structural view of a rotating shaft of a numerical control machine tool according to a preferred embodiment of the present application.
  • Figure 2 is an exploded view of the rotating shaft of the numerical control machine tool of Figure 1.
  • Figure 3 is a front view of the rotary shaft of the numerical control machine of Figure 1.
  • Figure 4 is a cross-sectional view of the rotary shaft of the numerical control machine of Figure 3.
  • a numerical control machine tool shaft 100 includes a rotating shaft 1, a first gland 2, an outer end cap 3, a casing 4, a bearing 5, a spacer 6, a stator 7, a rotor 8, and a rotor gland. 9. Index wheel 10, pneumatic brake device, and second gland 14.
  • the rotating shaft 1 is received by the bearing 5 and fixed in the outer end cover 3, and the first gland 2 is press-fitted at the end of the rotating shaft 1, and the outer end cap 3 is fixed to the outer casing 4.
  • the spacer 6 is sleeved on the rotating shaft 1.
  • the stator 7 and the rotor 8 are similar in C shape, and the rotor 8 is housed in the stator 7 and fixed to the outer casing 4 together with the stator 7.
  • the rotor gland 9 is fixed to the side of the rotor 8 away from the outer end cover 3, and the rotor 8 is coupled to the rotating shaft 1 through the rotor gland 9, and drives the rotating shaft 1 to rotate.
  • the indexing wheel 10 is coupled to a surface of the rotor gland 9 away from the side of the outer end cap 3.
  • the pneumatic brake device is connected to the indexing wheel 10 away from the rotor gland 9 side.
  • the second gland 14 is fixed to the outside of the pneumatic brake device.
  • the rotary shaft 1 of the rotary shaft 100 of the numerical control machine tool of the present application is mounted on the outer end cover 3 through the bearing 5, and is fixed to the outer casing 4 together with the outer end cover 3, thereby ensuring the stability of the rotary shaft 1, and is fixedly connected by using the rotor gland 9.
  • the rotor 8 and the rotating shaft 1 reduce the contact surface between the rotor 8 and the rotating shaft 1, thereby reducing the influence on the motor, effectively improving the machining accuracy of the rotating shaft 100 and prolonging its service life.
  • the bearing 5 is a tapered roller bearing.
  • the rotor gland 9 is a flange gland.
  • the indexing wheel 10 is an encoder gear indexing wheel for accurately conveying the moving position of the motor.
  • the rotating shaft 1 is close to the end of the first gland 2 to clamp the workpiece or to mount the four-axis rotary table to complete the processing of a plurality of surfaces after one clamping to reduce the number of times the workpiece is clamped.
  • the pneumatic brake device includes a brake chassis 11, a brake disc 12, and a brake pad 13, and the second gland 14 is fixed to the outside of the brake pad 13.
  • the pneumatic brake device achieves an emergency stop operation of the rotary shaft 1 by pneumatically controlling the left and right movement of the brake disk 12 to rub the brake pad 13.
  • the numerical control machine tool shaft 100 of the present application mounts the rotating shaft 1 on the outer end cover 3 through the bearing 5 to drive the rotating shaft 1 to rotate, and the rotating shaft 1 and the outer end cover 3 are fixed on the outer casing 4 to ensure the rotation shaft 1 Stability, inside the CNC machine shaft 100, the rotor 8 and the rotating shaft 1 are fixed by the flange rotor gland 9, which reduces the contact surface between the rotor 8 and the rotating shaft 1, thereby reducing the influence on the motor, effectively The machining accuracy of the rotary shaft 100 is improved and the service life thereof is prolonged.

Abstract

一种数控机床转轴（100），属于机械加工技术领域。数控机床转轴（100）包括旋转轴（1）、第一压盖（2）、外端盖（3）、外壳（4）、轴承（5）、定子（7）、转子（8）和转子压盖（9）。其中，旋转轴（1）通过轴承（5）收容并固定在外端盖（3）内，且第一压盖（2）压设在旋转轴（1）的端部。外端盖（3）固定在外壳（4）上。转子（8）收容在定子（7）内并与定子（7）一起固定在外壳（4）上。转子压盖（9）固定于转子（8）远离外端盖（3）的一侧，使转子（8）通过转子压盖（9）连接旋转轴（1）并带动旋转轴（1）转动。数控机床转轴（100）有效地保证了旋转轴（1）的稳定性，减少了转子（8）与旋转轴（1）之间的接触面，进而降低了对电机的影响，有效地提高了转轴的加工精度和延长其使用寿命。

Description

数控机床转轴 技术领域
本申请涉及机械加工技术领域，尤其涉及一种数控机床转轴。
 背景技术
随着科技的飞速发展，加工中心可加工的零件范围越来越广，可加工的复杂零件也越来越多，但零部件的硬度比以往要高很多，精度同样也越来越高，加工时间要求越来越严格，尤其有的零部件多个不同角度的表面都需要加工，且由于硬度高的原因，目前采用三轴平面加工，也就是一次只能加工一个角度面的特征，然后再把产品拆卸下来换面重新定位加工其他角度面的特征，直到最后将零件所有的特征全部加工完成。在数控机床工作台上增加第四轴便于对工件的加工，一次装夹后能进行多个表面的加工，自动化程度高。
现在行业上所使用的数控机床的第四轴均采用的是与转子整体相连的方式，接触面积大，因工件的自重及受力等因素会对第四轴产生一定的影响，从而降低加工精度和缩短使用寿命，并且转轴的稳定性较差。
 技术问题
本申请的主要目的在于提供一种数控机床转轴，以解决现有的转轴因稳定性 差而影响加工精度和使用寿命的问题。
 技术解决方案
为实现上述目的，本申请提供的一种数控机床转轴，包括旋转轴、第一压盖、外端盖、外壳、轴承、定子、转子和转子压盖，其中，所述旋转轴通过所述轴承收容并固定在所述外端盖内，且所述第一压盖压设在所述旋转轴的端部，所述外端盖固定在所述外壳上，所述转子收容在所述定子内并与所述定子一起固定在所述外壳上，所述转子压盖固定于所述转子远离所述外端盖的一侧，使所述转子通过所述转子压盖连接所述旋转轴并带动所述旋转轴转动。
可选的，还包括分度轮，所述分度轮连接于所述转子压盖远离外端盖一侧的表面。
可选的，还包括连接于所述分度轮远离所述转子压盖一侧的气动刹车装置。
可选的，所述气动刹车装置包括依次连接的刹车底盘、制动盘、刹车片。
可选的，还包括与所述气动刹车装置连接的第二压盖，所述第二压盖固定于所述刹车片的外侧。
可选的，还包括套设在所述旋转轴上的轴套。
可选的，所述轴承为圆锥滚子轴承。
可选的，所述转子压盖为法兰压盖。
可选的，所述分度轮为编码器齿轮分度轮。
可选的，所述旋转轴靠近所述第一压盖的一端夹持外部工件或者安装旋转台。
 有益效果
本申请提出的数控机床转轴，通过轴承将旋转轴安装在外端盖上，以带动旋转轴转动，旋转轴与外端盖一起固定在外壳上，保证了旋转轴的稳定性，在数控机床转轴的内部，使用法兰转子压盖固定转子和旋转轴，减少了转子与旋转轴之间的接触面，进而降低了对电机的影响，有效地提高了转轴的加工精度和延长其使用寿命。
 附图说明
图1为本申请较佳实施例提供的数控机床转轴的结构示意图。
图2为图1中数控机床转轴的爆炸图。
图3为图1中数控机床转轴的主视图。
图4为图3中数控机床转轴的剖视图。
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
本申请的实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
请同时参照图1-图4，一种数控机床转轴100包括旋转轴1、第一压盖2、外端盖3、外壳4、轴承5、隔套6、定子7、转子8、转子压盖9、分度轮10、气动刹车装置、以及第二压盖14。其中，旋转轴1通过轴承5收容并固定在外端盖3内，且第一压盖2压设在旋转轴1的端部，外端盖3固定在外壳4上。隔套6套设在旋转轴1上。定子7和转子8呈类似于C形，且转子8收容在定子7内，并与定子7一起固定在外壳4上。转子压盖9固定于转子8远离外端盖3的一侧，且转子8通过转子压盖9连接旋转轴1，并带动旋转轴1转动。分度轮10连接于转子压盖9远离外端盖3一侧的表面。气动刹车装置连接于分度轮10远离转子压盖9一侧。第二压盖14固定于气动刹车装置的外侧。本申请数控机床转轴100的旋转轴1通过轴承5安装在外端盖3上，并随外端盖3一起固定在外壳4上，保证了旋转轴1的稳定性，且使用转子压盖9固定连接转子8和旋转轴1，减少了转子8与旋转轴1之间的接触面，进而降低了对电机的影响，有效地提高了转轴100的加工精度和延长其使用寿命。
进一步的，请同时参照图2和图4，轴承5为圆锥滚子轴承。
进一步的，转子压盖9为法兰压盖。
进一步的，分度轮10为编码器齿轮分度轮，用于准确的传达电机的运动位置。
如图4所示，旋转轴1靠近第一压盖2的一端可以夹持工件或安装四轴旋转工作台，以实现一次装夹后完成多个表面的加工，以减少工件装夹次数。
气动刹车装置包括刹车底盘11、制动盘12、刹车片13，第二压盖14固定于刹车片13的外侧。气动刹车装置是通过气动控制制动盘12的左右运动对刹车片13进行摩擦来达到对旋转轴1进行紧急停止的操作。
本申请的数控机床转轴100，通过轴承5将旋转轴1安装在外端盖3上，以带动旋转轴1转动，旋转轴1与外端盖3一起固定在外壳4上，保证了旋转轴1的稳定性，在数控机床转轴100的内部，使用法兰转子压盖9固定转子8和旋转轴1，减少了转子8与旋转轴1之间的接触面，进而降低了对电机的影响，有效地提高了转轴100的加工精度和延长其使用寿命。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，这些均属于本申请的保护之内。

Claims (10)

  1. 一种数控机床转轴，其特征在于，包括旋转轴、第一压盖、外端盖、外壳、轴承、定子、转子和转子压盖，其中，所述旋转轴通过所述轴承收容并固定在所述外端盖内，且所述第一压盖压设在所述旋转轴的端部，所述外端盖固定在所述外壳上，所述转子收容在所述定子内并与所述定子一起固定在所述外壳上，所述转子压盖固定于所述转子远离所述外端盖的一侧，使所述转子通过所述转子压盖连接所述旋转轴并带动所述旋转轴转动。
  2. 根据权利要求1所述的数控机床转轴，其特征在于，还包括分度轮，所述分度轮连接于所述转子压盖远离外端盖一侧的表面。
  3. 根据权利要求2所述的数控机床转轴，其特征在于，还包括连接于所述分度轮远离所述转子压盖一侧的气动刹车装置。
  4. 根据权利要求3所述的数控机床转轴，其特征在于，所述气动刹车装置包括依次连接的刹车底盘、制动盘、刹车片。
  5. 根据权利要求4所述的数控机床转轴，其特征在于，还包括与所述气动刹车装置连接的第二压盖，所述第二压盖固定于所述刹车片的外侧。
  6. 根据权利要求1所述的数控机床转轴，其特征在于，还包括套设在所述旋转轴上的轴套。
  7. 根据权利要求1所述的数控机床转轴，其特征在于，所述轴承为圆锥滚子轴承。
  8. 根据权利要求1所述的数控机床转轴，其特征在于，所述转子压盖为法兰压盖。
  9. 根据权利要求2所述的数控机床转轴，其特征在于，所述分度轮为编码器齿轮分度轮。
  10. 根据权利要求1所述的数控机床转轴，其特征在于，所述旋转轴靠近所述第一压盖的一端夹持外部工件或者安装旋转台。
PCT/CN2018/096659 2017-07-31 2018-07-23 数控机床转轴 WO2019024705A1 (zh)

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CN207189269U (zh) * 2017-07-31 2018-04-06 深圳市创世纪机械有限公司 数控机床转轴
CN108857470A (zh) * 2018-07-25 2018-11-23 深圳市科益展自动化有限公司 一种中空谐波四轴平台
CN108705328B (zh) * 2018-07-25 2024-02-06 科益展智能装备有限公司 中空谐波平台
CN108788859A (zh) * 2018-07-25 2018-11-13 深圳市科益展自动化有限公司 中空电机定位平台
CN108705327B (zh) * 2018-07-25 2023-09-12 科益展智能装备有限公司 加工钟表外壳的中空谐波平台
CN108857464A (zh) * 2018-07-25 2018-11-23 深圳市科益展自动化有限公司 一种加工表壳的四轴平台

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