WO2020207351A1 - 一种双主轴双工作台的高效卧式加工中心机床 - Google Patents

一种双主轴双工作台的高效卧式加工中心机床 Download PDF

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Publication number
WO2020207351A1
WO2020207351A1 PCT/CN2020/083265 CN2020083265W WO2020207351A1 WO 2020207351 A1 WO2020207351 A1 WO 2020207351A1 CN 2020083265 W CN2020083265 W CN 2020083265W WO 2020207351 A1 WO2020207351 A1 WO 2020207351A1
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motor
guide rail
column
tool
dual
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PCT/CN2020/083265
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English (en)
French (fr)
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陈虎
侯延星
王峰
张国靖
汤洪涛
孙永杰
仲辉
时冬梅
赵立新
李秀敏
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科德数控股份有限公司
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Publication of WO2020207351A1 publication Critical patent/WO2020207351A1/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
    • B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation

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  • the invention relates to the technical field of numerical control machine tools, in particular to a high-efficiency horizontal machining center machine tool with dual spindles and dual worktables.
  • the horizontal five-axis machining center is generally divided into a double-swing head horizontal five-axis machining center with two rotating shafts at the spindle end and a horizontal five-axis machining center with a single-swing head and a rotary table structure where the spindle end and the table end are arranged with a rotating axis.
  • Shaft machining center this type of machining center is generally configured as a spindle and an independent turntable, which cannot meet the needs of high-efficiency machining of cutting workpieces.
  • the invention discloses a high-efficiency horizontal machining center machine tool with double spindles and double tables.
  • the machining center has a double electric spindle and a double table structure, can process two workpieces simultaneously, and improves the processing efficiency.
  • a high-efficiency horizontal machining center machine tool with double spindles and double tables comprising a bed, an X-direction guide rail, an X-direction drive screw and an X-direction drive motor are arranged on the front end of the bed; X-direction slider, the X-direction slider is fixed with a cradle connecting plate, the left and right ends of the cradle connecting plate are respectively provided with a cradle left end support shaft unit and a cradle right end support shaft unit, the cradle right end support shaft unit and A rocker arm is provided between the support shaft units at the left end of the cradle, and a first rotary table and a second rotary table are sequentially arranged on the rocker arm along the X direction.
  • the X-direction drive motor can drive the lead screw through the X-direction.
  • the cradle connecting plate is driven to move on the X-direction rail;
  • the rear end of the bed is provided with a door-shaped column, and the left and right sides of the column are respectively provided with a left tool magazine support and a right tool magazine support, the left
  • a left tool magazine cam box is provided on the tool magazine support
  • a right tool magazine cam box is provided on the right tool magazine support
  • a left tool magazine tool changing mechanical arm and a left tool magazine cam box are also provided on the left side of the front end of the column
  • Drive motor the right side of the front end of the column is also provided with a right tool magazine tool change robot arm and a right tool magazine cam box drive motor
  • the center of the column is provided with a spindle box, and the spindle box is provided with a Z-direction guide, Z
  • the Z-direction drive motor and the Z-direction drive screw, the Z-direction guide rail is provided
  • the Z-direction drive motor passes through the The Z-direction drive screw can drive the ram to move on the Z-direction guide rail; the left and right sides of the column are also provided with a spindle box left drive unit motor, a spindle box right drive unit motor, and left Y
  • the left side drive unit motor of the spindle box and the right side drive unit motor of the spindle box are driven by the left Y-direction drive lead screw and the right Y-direction drive
  • the screw can drive the spindle box to move on the Y-direction guide rail.
  • the distance between the first electric spindle and the second electric spindle in the X direction is consistent with the distance between the first rotary table and the second rotary table in the X direction.
  • first rotating table is directly driven by a first torque motor
  • second rotating table is directly driven by a second torque motor
  • a third torque motor is provided in the support shaft unit at the right end of the cradle. The third torque motor directly drives the rocker arm to rotate.
  • a chip conveyor which is fixed at the rear end of the upright column and corresponds to the central position of the upright column.
  • the Y-direction guide rail has four Y-direction guide rails, and the four Y-direction guide rails are respectively fixed on the cylindrical surface of the left front end, the left rear end, the right front end and the right rear end of the column.
  • the two Z-direction guide rails are sequentially arranged on the spindle box along the X direction.
  • the two Z-direction guide rails are respectively located below the center of gravity of the electric spindle.
  • the high-efficiency horizontal machining center machine tool with dual spindles and dual tables of the present invention has the following beneficial effects: 1.
  • the machining center has a dual electric spindle and dual table structure, which can perform simultaneous operations on two workpieces. Processing improves the processing efficiency; 2.
  • Two sets of tool magazines and tool change mechanical arms are arranged on both sides of the column, which can realize the tool change work at the same time, which further improves the processing efficiency; 3.
  • the first rotary table and the second rotary table And the rocker arm is directly driven by the torque motor, which improves the response speed of the rocker arm and the rotating table, and the zero-gap transmission enables the functional parts to run smoothly, thereby improving the overall stability of the machine tool; 4.
  • Chip removal is provided at the back of the column It can quickly remove the chips generated during processing; 5.
  • the headstock is driven at the same time from the left and right sides of the column.
  • the main shaft ram part is equipped with two high-rigidity electric main shafts at the same time, which is convenient for maintenance and replacement, reduces the structure of the main shaft unit, facilitates the lightweight design of the moving parts of the ram, and improves the dynamic performance.
  • Figure 1 is a schematic diagram of the front structure of the high-efficiency horizontal machining center machine tool with dual spindles and dual tables disclosed in the present invention
  • Figure 2 is a schematic diagram of the rear structure of the high-efficiency horizontal machining center machine tool with dual spindles and dual tables disclosed in the present invention.
  • Figures 1 and 2 show the high-efficiency horizontal machining center machine tool with double spindles and double tables disclosed in the present invention. It includes a bed 1, which is fixed on the ground by feet 30, and the front end of the bed 1 is provided with Some X-direction guide rails 28, X-direction drive screws 2 and X-direction drive motors 3; the X-direction guide rail 28 is provided with an X-direction slider 29, and the X-direction slider 29 is fixed with a cradle connecting plate 4,
  • the left and right ends of the cradle connecting plate 4 are respectively provided with a cradle left end support shaft unit 5 and a cradle right end support shaft unit 25, and a rocker 24 is provided between the cradle right end support shaft unit 25 and the cradle left end support shaft 5 unit.
  • a first rotating worktable 26 and a second rotating worktable 27 are sequentially provided on the rocker arm 24 along the X direction, and the X-direction drive motor 3 can drive the cradle connecting plate 4 through the X-direction drive screw 2 It moves on the X-direction rail 28;
  • the rear end of the bed 1 is provided with a gantry-shaped column 14, and the left and right sides of the column 14 are respectively provided with a left tool magazine support 6 and a right tool magazine support 23,
  • the A left tool magazine cam box 9 is provided on the left tool magazine support 6, a right tool magazine cam box 21 is provided on the right tool magazine support 23, and a left tool magazine tool changing mechanical arm is also provided on the left side of the front end of the column 14 8 and the left tool magazine cam box drive motor 10.
  • the right tool magazine tool changer arm 22 and the right tool magazine cam box drive motor 20 are also provided on the right side of the front end of the column 14; a spindle box 15 is provided in the center of the column 14 , The spindle box 15 is provided with a Z-direction guide rail 16, a Z-direction drive motor 34, and a Z-direction drive screw.
  • the Z-direction guide rail 16 is provided with a ram 13 which is sequentially arranged along the X direction.
  • first electric spindle 12 and a second electric spindle 17 there are a first electric spindle 12 and a second electric spindle 17, and the Z-direction drive motor 34 can drive the ram 13 to move on the Z-direction guide rail 16 through the Z-direction drive screw;
  • the left and right sides are also provided with a motor 11 on the left side of the spindle box, a motor 18 on the right side of the spindle box, a Y-direction drive screw on the left, a Y-direction drive screw 31 on the right, and a Y-direction guide 19 respectively.
  • the left side drive unit motor 11 of the box and the right side drive unit motor 18 of the spindle box can drive the spindle box to move on the Y-direction guide rail 19 through the left Y-direction drive screw and the right Y-direction drive screw.
  • the machining center disclosed by the present invention is provided with a first electric spindle and a second electric spindle on the ram, and a first rotary table and a second rotary table on the rocker arm, so that two workpieces can be processed simultaneously , Improve the processing efficiency.
  • both sides of the column are equipped with a tool changer and a tool changer arm, which can automatically change the two electric spindles at the same time, which further improves the processing efficiency.
  • the distance between the first electric spindle 12 and the second electric spindle 17 in the X direction is consistent with the distance between the first rotary table 26 and the second rotary table 27 in the X direction, which can improve the processing of the machine tool. Accuracy.
  • first rotary table 26 is directly driven by a first torque motor
  • second rotary table 27 is directly driven by a second torque motor
  • support shaft unit 25 at the right end of the cradle is provided with a third torque motor.
  • the third torque motor directly drives the rocker arm to rotate.
  • the first and second rotating tables and the rocker arm are directly driven by the torque motor, so that it has fast start, zero-gap transmission, high dynamic response, stable and reliable operation , Improve processing efficiency.
  • a chip conveyor 7 which is fixed at the rear end of the column 14 and corresponds to the central position of the column, so that the chips generated during the machining process can be easily discharged.
  • the Y-direction guide rail 28 has four, and the four Y-direction guide rails are respectively fixed to the left front end, the left rear end, the right front end and the right rear end of the column.
  • this structure improves the rigidity of the machine tool, ensures the smooth running of the spindle box, and improves the machining accuracy of the machine tool.
  • the Z-direction guide rail 16 has two Z-direction guide rails, and the two Z-direction guide rails are sequentially arranged on the spindle box along the X direction.
  • the two Z-direction guide rails are respectively positioned below the center of gravity of the electric spindle, which can further improve The rigidity of the spindle box ensures the accuracy of processing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Turning (AREA)

Abstract

一种双主轴双工作台的高效卧式加工中心机床，该加工中心机床的摇臂（24）上设有两组旋转工作台（26,27），机床的立柱（14）处的滑枕（13）上设有两组电主轴（12,17），立柱（14）的两侧设有两组刀库和换刀机械臂（8,22），该加工中心机床可以对两个工件同时进行加工；在换刀时，两个换刀机械臂（8,22）可以同时自动的对电主轴（12,17）进行换刀，提高了机床的加工效率。

Description

一种双主轴双工作台的高效卧式加工中心机床 技术领域
本发明涉及数控机床技术领域，具体涉及双主轴双工作台的高效卧式加工中心机床。
背景技术
卧式五轴加工中心一般分为两个旋转轴都在主轴端的双摆头卧式五轴加工中心和主轴端与工作台端各布置一个旋转轴的单摆头配回转工作台结构的卧式五轴加工中心，该类加工中心通用配置为一个主轴，一个独立转台，无法满足切削工件高效率加工的需求。
发明内容
本发明公开了一种双主轴双工作台的高效卧式加工中心机床，该加工中心具有双电主轴和双工作台结构，可以对两个工件进行同时加工，提高了加工效率。
本发明采用的技术手段如下：
一种双主轴双工作台的高效卧式加工中心机床，包括床身，所述床身前端设有的X向导轨、X向驱动丝杠和X向驱动电机；所述X向导轨上设有X向滑块，所述X向滑块上固定有摇篮连接板，所述摇篮连接板上左右两端分别设有摇篮左端支撑轴单元和摇篮右端支撑轴单元，所述摇篮右端支撑轴单元和摇篮左端支撑轴单元之间设有摇臂，所述摇臂上沿X向依次设有第一旋转工作台和第二旋转工作台，所述X向驱动电机通过所述X向驱动丝杠可驱动所述摇篮连接板在所述X向导轨上运动；所述床身后端设有门型的立柱，所述立柱的左右两侧分别设有左刀库支架和右刀库支架，所述左刀库支架上设有左刀库凸轮箱，所述右刀库支架上设有右刀库凸轮箱，所述立柱前端的左侧还设有左刀库换刀机械手臂和左刀库凸轮箱驱动电机，所述立柱前端的右侧还设有右刀库换刀机械手臂和右刀库凸轮箱驱动电机；所述立柱中央设有主轴箱，所述主轴箱上设有Z向导轨、Z向驱动电机以及Z向驱动丝杠，所述Z向导轨上设有滑枕，所述滑枕上沿X向依次设有第一电主轴和第二电主轴，所述Z向驱动电机通过所述Z向驱动丝杠可驱动所述滑枕在所述Z向导轨上运动；所述立柱的左右两侧还分别设有主轴箱左侧驱动单元电机、主轴箱右侧驱动单元电机、左侧Y向驱 动丝杠、右侧Y向驱动丝杠以及Y向导轨，所述主轴箱左侧驱动单元电机和主轴箱右侧驱动单元电机通过所述左侧Y向驱动丝杠和右侧Y向驱动丝杠可驱动所述主轴箱在所述Y向导轨上运动。
进一步地，所述第一电主轴和第二电主轴在X向的距离与所述第一旋转工作台和第二旋转工作台在X向的距离相一致。
进一步地，所述第一旋转工作台由第一力矩电机直驱，所述第二旋转工作台由第二力矩电机直驱，所述摇篮右端支撑轴单元内设有第三力矩电机，所述第三力矩电机直驱所述摇臂转动。
进一步地，还包括排屑器，所述排屑器固定在所述立柱的后端并与所述立柱中央位置相对应。
进一步地，所述Y向导轨具有四根，四根所述Y向导轨分别固定于所述立柱的左前端、左后端、右前端以及右后端的柱面上。
进一步地，所述Z向导轨具有两根，两根所述Z向导轨沿X向依次设置在所述主轴箱上。
进一步地，两根所述Z向导轨分别至于电主轴重心的下方。
与现有技术比较，本发明所述的双主轴双工作台的高效卧式加工中心机床具有以下有益效果：1、该加工中心具有双电主轴和双工作台结构，可以对两个工件进行同时加工，提高了加工效率；2、立柱两侧设有两组刀库和换刀机械手臂，可以同时实现换刀工作，进一步提高了加工效率；3、第一旋转工作台、第二旋转工作台以及摇臂均由力矩电机直驱，提高了摇臂与旋转工作台的响应速度，零间隙传动，使功能部件能够平稳运转，从而提高机床的整体稳定性；4、立柱后端设有排屑器，可以快速的将加工过程中产生的切屑排除；5、主轴箱从立柱左右两侧同时驱动，同时Y向导轨具有四根，实现了Y向的高动态设计。主轴滑枕部分同时设置了两根高刚性电主轴，维修更换方便，减化主轴单元结构，便于实现滑枕运动部件的轻量化设计，提高动态性能。
附图说明
图1为本发明所公开的双主轴双工作台的高效卧式加工中心机床的正面结构示意图；
图2为本发明所公开的双主轴双工作台的高效卧式加工中心机床的后面结 构示意图。
图中：1、床身，2、X向驱动丝杠，3、X向驱动电机，4、摇篮连接板，5、摇篮左端支撑轴单元，6、左刀库支架，7、排屑器，8、左刀库换刀机械手臂，9、左刀库凸轮箱，10、左刀库凸轮箱驱动电机，11、主轴箱左侧驱动单元电机，12、第一电主轴，13、滑枕，14、立柱，15、主轴箱，16、Z向导轨，17、第二电主轴，18、主轴箱右侧驱动单元电机，19、Y向导轨，20、右刀库凸轮箱驱动电机，21、右刀库凸轮箱，22、右刀库换刀机械手臂，23、右刀库支架，24、摇臂，25、摇篮右端支撑轴单元，26、第一旋转工作台，27、第二旋转工作台，28、X向导轨，29、X向滑块，30、地脚，31、Y向驱动丝杠，32、Y向滑块，33、Z向驱动电机座，34、Z向驱动电机，35、Z向滑块。
具体实施方式
如图1和图2所示为本发明公开的双主轴双工作台的高效卧式加工中心机床，包括床身1，床身1通过地脚30固定在地面上，所述床身1前端设有的X向导轨28、X向驱动丝杠2和X向驱动电机3；所述X向导轨28上设有X向滑块29，所述X向滑块29上固定有摇篮连接板4，所述摇篮连接板4上左右两端分别设有摇篮左端支撑轴单元5和摇篮右端支撑轴单元25，所述摇篮右端支撑轴单元25和摇篮左端支撑轴5单元之间设有摇臂24，所述摇臂24上沿X向依次设有第一旋转工作台26和第二旋转工作台27，所述X向驱动电机3通过所述X向驱动丝杠2可驱动所述摇篮连接板4在所述X向导轨28上运动；所述床身1后端设有龙门型的立柱14，所述立柱14的左右两侧分别设有左刀库支架6和右刀库支架23，所述左刀库支架6上设有左刀库凸轮箱9，所述右刀库支架23上设有右刀库凸轮箱21，所述立柱14前端的左侧还设有左刀库换刀机械手臂8和左刀库凸轮箱驱动电机10，所述立柱14前端的右侧还设有右刀库换刀机械手臂22和右刀库凸轮箱驱动电机20；所述立柱14中央设有主轴箱15，所述主轴箱15上设有Z向导轨16、Z向驱动电机34以及Z向驱动丝杠，所述Z向导轨16上设有滑枕13，所述滑枕13上沿X向依次设有第一电主轴12和第二电主轴17，所述Z向驱动电机34通过所述Z向驱动丝杠可驱动所述滑枕13在所述Z向导轨16上运动；所述立柱14的左右两侧还分别设有主轴箱左侧驱动单元电机11、主轴箱右侧驱动单元电机18、左侧Y向驱动丝杠、右侧Y向驱 动丝杠31以及Y向导轨19，所述主轴箱左侧驱动单元电机11和主轴箱右侧驱动单元电机18通过所述左侧Y向驱动丝杠和右侧Y向驱动丝杠可驱动所述主轴箱在所述Y向导轨19上运动。本发明公开的加工中心由于在滑枕上设有第一电主轴和第二电主轴，在摇臂上设有第一旋转工作台和第二旋转工作台，因此，可以对两个工件进行同时加工，提高了加工效率，同时，立柱两侧均设有换刀库和换刀机械臂，可以对两个电主轴同时自动换刀，进一步提高了加工效率。
进一步地，所述第一电主轴12和第二电主轴17在X向的距离与所述第一旋转工作台26和第二旋转工作台27在X向的距离相一致，可以提高机床的加工精度。
进一步地，所述第一旋转工作台26由第一力矩电机直驱，所述第二旋转工作台27由第二力矩电机直驱，所述摇篮右端支撑轴单元25内设有第三力矩电机，所述第三力矩电机直驱所述摇臂转动，第一、第二旋转工作台和摇臂均采用力矩电机直驱，使其具有快速启动，零间隙传动，高动态响应，运行平稳可靠，加工效率提高。
进一步地，还包括排屑器7，所述排屑器7固定在所述立柱14的后端并与所述立柱中央位置相对应，可以方便的将加工过程产生的切屑排出。
进一步地，如图1和图2所示，所述Y向导轨28具有四根，四根所述Y向导轨分别固定于所述立柱的左前端、左后端、右前端以及右后端的柱面上，该结构提高了机床的刚性，保证了主轴箱运行的平稳性，提高了机床的加工精度。
进一步地，所述Z向导轨16具有两根，两根所述Z向导轨沿X向依次设置在所述主轴箱上，两根所述Z向导轨分别至于电主轴重心的下方，可以进一步提高主轴箱处的刚性，保证加工的精度。
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. 一种双主轴双工作台的高效卧式加工中心机床，其特征在于：包括床身，
    所述床身前端设有的X向导轨(28)、X向驱动丝杠(2)和X向驱动电机(3)；
    所述X向导轨(28)上设有X向滑块(29)，所述X向滑块(29)上固定有摇篮连接板(4)，所述摇篮连接板(4)上左右两端分别设有摇篮左端支撑轴单元(5)和摇篮右端支撑轴单元(25)，所述摇篮右端支撑轴单元(25)和摇篮左端支撑轴单元(5)之间设有摇臂(24)，所述摇臂(24)上沿X向依次设有第一旋转工作台(26)和第二旋转工作台(27)，所述X向驱动电机(3)通过所述X向驱动丝杠(2)可驱动所述摇篮连接板(4)在所述X向导轨(28)上运动；
    所述床身后端设有门型的立柱(14)，所述立柱(14)的左右两侧分别设有左刀库支架(6)和右刀库支架(23)，所述左刀库支架(6)上设有左刀库凸轮箱(9)，所述右刀库支架(23)上设有右刀库凸轮箱(21)，所述立柱前端的左侧还设有左刀库换刀机械手臂(8)和左刀库凸轮箱驱动电机(10)，所述立柱前端的右侧还设有右刀库换刀机械手臂(22)和右刀库凸轮箱驱动电机(20)；
    所述立柱中央设有主轴箱(15)，所述主轴箱(15)上设有Z向导轨(16)、Z向驱动电机(34)以及Z向驱动丝杠，所述Z向导轨(16)上设有滑枕(13)，所述滑枕(13)上沿X向依次设有第一电主轴(12)和第二电主轴(17)，所述Z向驱动电机(34)通过所述Z向驱动丝杠可驱动所述滑枕(13)在所述Z向导轨(16)上运动；
    所述立柱的左右两侧还分别设有主轴箱左侧驱动单元电机(11)、主轴箱右侧驱动单元电机(18)、左侧Y向驱动丝杠、右侧Y向驱动丝杠以及Y向导轨(16)，所述主轴箱左侧驱动单元电机(11)和主轴箱右侧驱动单元电机(18)通过所述左侧Y向驱动丝杠和右侧Y向驱动丝杠可驱动所述主轴箱(15)在所述Y向导轨(16)上运动。
  2. 根据权利要求1所述的双主轴双工作台的高效卧式加工中心机床，其特征在于：所述第一电主轴(12)和第二电主轴(17)在X向的距离与所述第一旋转工作台(26)和第二旋转工作台(27)在X向的距离一致。
  3. 根据权利要求1或2所述的双主轴双工作台的高效卧式加工中心机床，其特征在于：所述第一旋转工作台(26)由第一力矩电机直驱，所述第二旋转工作台(27)由第二力矩电机直驱，所述摇篮右端支撑轴单元(25)内设有第 三力矩电机，所述第三力矩电机直驱所述摇臂转动。
  4. 根据权利要求3所述的双主轴双工作台的高效卧式加工中心机床，其特征在于：还包括排屑器(7)，所述排屑器(7)固定在所述立柱的后端并与所述立柱中央位置相对应。
  5. 根据权利要求4所述的双主轴双工作台的高效卧式加工中心机床，其特征在于：所述Y向导轨具有四根，四根所述Y向导轨分别固定于所述立柱的左前端、左后端、右前端以及右后端的柱面上。
  6. 根据权利要求5所述的双主轴双工作台的高效卧式加工中心机床，其特征在于：所述Z向导轨(16)具有两根，两根所述Z向导轨(16)沿X向依次设置在所述主轴箱上。
  7. 根据权利要求6所述的双主轴双工作台的高效卧式加工中心机床，其特征在于：两根所述Z向导轨(16)分别至于电主轴重心的下方。
PCT/CN2020/083265 2019-04-08 2020-04-03 一种双主轴双工作台的高效卧式加工中心机床 WO2020207351A1 (zh)

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