WO2022222245A1 - 一种集成光栅尺的高定位精度丝杆滑台 - Google Patents

一种集成光栅尺的高定位精度丝杆滑台 Download PDF

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Publication number
WO2022222245A1
WO2022222245A1 PCT/CN2021/099535 CN2021099535W WO2022222245A1 WO 2022222245 A1 WO2022222245 A1 WO 2022222245A1 CN 2021099535 W CN2021099535 W CN 2021099535W WO 2022222245 A1 WO2022222245 A1 WO 2022222245A1
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sliding
slide table
grating ruler
seat
lead screw
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PCT/CN2021/099535
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English (en)
French (fr)
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周敏
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苏州舍勒智能科技有限公司
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Publication of WO2022222245A1 publication Critical patent/WO2022222245A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques

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  • the utility model relates to the field of driving equipment, in particular to a high positioning precision lead screw slide table integrated with a grating ruler.
  • the current lead screw slide table generally drives the lead screw nut to control the displacement through the rotation of the servo motor, and the accuracy is also controlled by the servo motor, but the actual displacement position is not fed back, and it is more troublesome to rely on the motor to compensate.
  • the main technical problem to be solved by the utility model is to provide a high positioning precision screw slide table integrated with grating ruler, which has the advantages of high reliability, accurate positioning, compact structure, etc., and has a wide market in the application and popularization of driving equipment. prospect.
  • a high positioning precision lead screw slide table with integrated grating ruler which includes: a slide table base, a slide module, a displacement feedback module, a coupling, a servo motor, and a ball screw nut assembly,
  • the sliding module includes a linear guide rail, a sliding block and a sliding seat.
  • the two linear guide rails are oppositely arranged in the sliding table base, and the lower end of the sliding seat is slidably connected to the linear guide rail through the sliding block. Its upper end extends outside the sliding table base, the sliding seat is connected with the nut in the ball screw nut assembly, and the servo motor is connected with the ball screw nut assembly through a coupling to drive the sliding seat to move back and forth along the linear slide rail ,
  • the displacement feedback module includes a reading head mounting part, a grating reading head, a grating ruler, and a grating ruler pressing plate.
  • the head is fixedly arranged on the sliding seat through the reading head mounting member, and the grating reading head cooperates with the grating ruler to read displacement data and feed back, so as to feedback the specific position of the sliding seat in real time.
  • a photoelectric sensor, a photoelectric limit switch and an origin switch are installed on the side of the sliding table base.
  • the front end plate of the sliding table and the rear end plate of the sliding table are respectively arranged at the front end and the rear end of the sliding table base.
  • the upper cover of the sliding table is arranged on the top of the base of the sliding table, and the connection between the upper cover of the sliding table and the base of the sliding table is provided with a sliding seat that allows the sliding seat to pass through. And slide the sliding slot.
  • the ball screw nut assembly includes a screw rod, a ball nut, a front end bearing seat, and a rear end bearing seat, and high-precision front end bearing seat and rear end bearing seat are arranged on the sliding
  • the two ends of the table base, the two ends of the screw rod are slidably connected with the front end bearing seat and the rear end bearing seat, the screw rod and the ball nut are threadedly connected, and the power output end of the servo motor uses a precise coupling
  • the device is connected with the output shaft of the lead screw to drive the entire lead screw slide table to move in a straight line.
  • the side surface of the bearing seat is provided with an anti-collision block.
  • a coupling seat is provided on the outside of the coupling, one end of the coupling seat is connected with the front end plate of the sliding table, and the other end is directly connected with the servo motor through the motor flange plate.
  • the motors are connected with each other, and a cover plate is also arranged on the coupling seat.
  • the beneficial effects of the utility model are: through the cooperation of the sliding module and the displacement feedback module, the position of the sliding seat can be monitored in real time, which is convenient for real-time correction and improves the running and positioning accuracy of the lead screw sliding table.
  • FIG. 1 is a schematic structural diagram of a preferred embodiment of a high positioning precision lead screw slide table with integrated grating ruler of the present invention
  • FIG. 2 is a preferred embodiment of the high positioning precision screw slide table with integrated grating ruler of the present invention
  • the utility model embodiment includes:
  • a high positioning precision lead screw slide with integrated grating ruler widely used in non-standard automation, such as photovoltaic industry, 3C industry, LED panel industry, etc. Its specific structure includes: slide base 1, sliding module, displacement feedback module Group, slide upper cover plate 2, slide front end plate 3, slide back end plate 4, coupling 5, servo motor 6, ball screw nut assembly, sensor induction sheet 7, photoelectric switch 8, origin switch.
  • the sliding module includes a linear guide 9, a sliding block 10, and a sliding seat 11.
  • the two linear guides are oppositely arranged in the sliding table base, and the lower end of the sliding seat passes through the sliding block and the linear guide.
  • the upper end of the sliding connection extends to the outside of the sliding table base, and the sliding seat is connected with the nut in the ball screw nut assembly, so that the screw drives the sliding seat to move back and forth along the linear slide rail.
  • the high-precision processing aluminum profile sliding table base is matched with the precision double linear guide slider to ensure the overall mechanical structure strength, running accuracy, load capacity and running parallelism of the sliding table.
  • a photoelectric sensor, a photoelectric limit switch and an origin switch are installed on the side of the sliding table base for auxiliary position control and operation protection.
  • the photoelectric limit switch and the origin switch on the one hand, it is more convenient to control the return to the origin, and on the other hand, it also plays a safety protection role in abnormal situations.
  • the displacement feedback module is installed on the other side of the sliding table base to perform displacement feedback in real time and ensure the positional accuracy of the sliding table operation.
  • the displacement feedback module includes a reading head mounting part 12, a grating reading head 13, a grating ruler 14, and a grating ruler pressing plate 15.
  • the grating ruler is fixedly arranged on the sliding table base under the sliding seat through the grating ruler pressing plate.
  • the grating reading head is fixedly arranged on the sliding seat through the reading head mounting piece, and the grating reading head cooperates with the grating ruler to read the displacement data and feed back, so as to feedback the details of the sliding seat in real time. Location.
  • the real-time position of the sliding seat can be monitored and fed back, and the position information is transmitted to the host computer for real-time correction, so that the entire sliding table forms a closed-loop system, which can make the overall displacement positioning accuracy of the sliding table remarkable. promote.
  • the front end plate of the sliding table and the rear end plate of the sliding table are respectively arranged at the front end and the rear end of the sliding table base, the upper cover plate of the sliding table is arranged on the top of the sliding table base, and the sliding table
  • the connection between the upper cover plate and the sliding table base is provided with a sliding groove allowing the sliding seat to pass through and slide.
  • the ball screw nut assembly includes a screw 16, a ball nut 17, a front end bearing seat 18, and a rear end bearing seat 19.
  • the high precision front end bearing seat and rear end bearing seat are arranged at both ends of the sliding table base, so The two ends of the screw rod are slidably connected with the front end bearing seat and the rear end bearing seat, the screw rod is threadedly connected with the ball nut, and the power output end of the servo motor is connected with the output shaft of the screw rod with a precise coupling are connected to drive the entire screw slide table to move in a straight line, and an anti-collision block 20 can also be provided on the side of the bearing seat.
  • the servo motor is matched with a precision ball screw and is driven by a precision coupling. It has good mechanical properties from the drive element to the actuator and the transmission element, which ensures the overall displacement and positioning accuracy of the slide table.
  • the high-precision bearing seat supports the reciprocating forward and reverse motion of the screw, which makes the operation of the screw more stable and greatly improves the service life of the screw.
  • the outside of the coupling can be provided with a coupling seat 21, one end of the coupling seat is connected with the front end plate of the sliding table, and the other end is connected with the servo motor through the motor direct connection flange plate.
  • the seat is also provided with a cover plate.
  • the utility model has the beneficial effects of the high positioning precision lead screw slide table integrated with the grating ruler: through the cooperation of the slide module and the displacement feedback module, the position of the slide seat can be monitored in real time, which is convenient for real-time correction and improves the lead screw slide.
  • the running and positioning accuracy of the table is convenient for real-time correction and improves the lead screw slide.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Position Or Direction (AREA)
  • Details Of Measuring And Other Instruments (AREA)

Abstract

一种集成光栅尺的高定位精度丝杆滑台，包括：滑台底座（1）、滑动模组、位移反馈模组、伺服电机（6）、滚珠丝杆螺母组件，滑动模组包括直线导轨（9）、滑块（10）、滑动座（11），两个直线导轨相对设置于滑台底座内，滑动座的下端通过滑块与直线导轨滑动连接，滑动座连接滚珠丝杆螺母组件的螺母，伺服电机通过联轴器（5）与滚珠丝杆螺母组件连接，位移反馈模组包括读数头安装件（12）、光栅读数头（13）、光栅尺（14）、光栅尺压板（15），光栅尺通过光栅尺压板固定于滑台底座的侧壁上，光栅读数头通过读数头安装件固定于滑动座上。该丝杆滑台通过滑动模组与位移反馈模组的配合，实时监测滑动座的位置，便于实时修正，提高了运行和定位精度。

Description

一种集成光栅尺的高定位精度丝杆滑台 技术领域
本实用新型涉及驱动设备领域，特别是涉及一种集成光栅尺的高定位精度丝杆滑台。
背景技术
随着自动化设备的更新换代，对于位移滑台需要更高的精度要求，但是如果采用直线电机成本又会比较高。
目前的丝杆滑台一般是通过伺服电机旋转带动丝杆螺母控制位移，精度也是有伺服电机控制的，但是实际位移位置并没有得到反馈，靠电机补偿也是比较麻烦。
实用新型内容
本实用新型主要解决的技术问题是提供一种集成光栅尺的高定位精度丝杆滑台，具有可靠性能高、定位精确、结构紧凑等优点，同时在驱动设备的应用及普及上有着广泛的市场前景。
为解决上述技术问题，本实用新型采用的一个技术方案是：
提供一种集成光栅尺的高定位精度丝杆滑台，其包括：滑台底座、滑动模组、位移反馈模组、联轴器、伺服电机、滚珠丝杆螺母组件，
所述滑动模组包括直线导轨、滑块、滑动座，两个所述直线导轨相对设置于所述滑台底座内，所述滑动座的下端通过所述滑块与所述直线导轨滑动连接，其上端延伸至滑台底座外，所述滑动座与滚珠丝杆螺母组件中的螺母相连接，伺服电机通过联轴器与滚珠丝杆螺母组件相连接，以带动滑动座沿直线滑轨来回运动，
所述位移反馈模组包括读数头安装件、光栅读数头、光栅尺、光栅尺压板，所述光栅尺通过所述光栅尺压板固定设置于所述滑台底座的侧壁上，所述光栅读数头通过所述读数头安装件固定设置于所述滑动座上，所述光栅读数头与所述光栅尺配合读取位移数据并反馈，以实时反馈滑动座的具体位置。
在本实用新型一个较佳实施例中，所述滑台底座的侧面安装有光电传感器、光电限位开关以及原点开关。
在本实用新型一个较佳实施例中，滑台前端板和滑台后端板分别设置于所述滑台底座的前端和后端。
在本实用新型一个较佳实施例中，滑台上盖板设置于所述滑台底座的顶部，且所述滑台上盖板与所述滑台底座的连接处设置有容许滑动座穿过并滑动的滑动槽。
在本实用新型一个较佳实施例中，所述滚珠丝杆螺母组件包括丝杆、滚珠螺母、前端轴承座、后端轴承座，高精度的前端轴承座和后端轴承座设置于所述滑台底座的两端，所述丝杆的两端与所述前端轴承座、后端轴承座滑动连接，所述丝杆与滚珠螺母螺纹连接，所述伺服电机的动力输出端用精密的联轴器与丝杆的出轴相连接，以驱动整个丝杆滑台做直线运动。
在本实用新型一个较佳实施例中，轴承座的侧面设置有防撞块。
在本实用新型一个较佳实施例中，所述联轴器的外部设置有一联轴器座，联轴器座的一端与滑台前端板相连接，另一端通过电机直联法兰板与伺服电机相连接，所述联轴器座上还设置有盖板。
本实用新型的有益效果是：通过滑动模组与位移反馈模组的配合，实时的监测滑动座的位置，便于实时修正，提高了丝杠滑台的运行和定位精度。
附图说明
为了更清楚地说明本实用新型实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本实用新型的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1是本实用新型的一种集成光栅尺的高定位精度丝杆滑台一较佳实施例的结构示意图；
图2是本实用新型的一种集成光栅尺的高定位精度丝杆滑台一较佳实施例
的俯视结构示意图。
具体实施方式
下面将对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本实用新型的一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本实用新型保护的范围。
请参阅图1-2，本实用新型实施例包括：
一种集成光栅尺的高定位精度丝杆滑台，广泛应用于非标自动化，如光伏行业，3C行业、LED面板行业等，其具体结构包括：滑台底座1、滑动模组、位移反馈模组、滑台上盖板2、滑台前端板3、滑台后端板4、联轴器5、伺服电机6、滚珠丝杆螺母组件、传感器感应片7、光电开关8、原点开关。
所述滑动模组包括直线导轨9、滑块10、滑动座11，两个所述直线导轨相对设置于所述滑台底座内，所述滑动座的下端通过所述滑块与所述直线导轨滑动连接，其上端延伸至滑台底座外，所述滑动座与滚珠丝杆螺母组件中的螺母相连接，以使得丝杆带动滑动座沿直线滑轨来回运动。高精度加工的铝型材滑台底座配合精密双直线导轨滑块，以保证滑台整体的机械结构强度、运行精度、负载能力以及行走平行度。
所述滑台底座的侧面安装有光电传感器、光电限位开关以及原点开关，用于辅助位置控制及运行保护。利用光电限位开关及原点开关，一方面更方便进行回原点的控制，另一方面也起到了异常情况的安全保护作用。
所述滑台底座的另一侧安装有所述位移反馈模组，以实时进行位移反馈，保证滑台运行的位置精度。
所述位移反馈模组包括读数头安装件12、光栅读数头13、光栅尺14、光栅尺压板15，所述光栅尺通过所述光栅尺压板固定设置于滑动座下方的所述滑台底座的侧壁上，所述光栅读数头通过所述读数头安装件固定设置于所述滑动座上，所述光栅读数头与所述光栅尺配合读取位移数据并反馈，以实时反馈滑动座的具体位置。通过集成高精度的光栅尺，使得滑动座的实时位置得以监测和反馈，位置信息传递给上位机进行实时修正，让整个滑台形成了一套闭环系统，能够让滑台的整体位移定位精度显著提升。
所述滑台前端板和所述滑台后端板分别设置于所述滑台底座的前端和后端，所述滑台上盖板设置于所述滑台底座的顶部，且所述滑台上盖板与所述滑台底座的连接处设置有容许滑动座穿过并滑动的滑动槽。
所述滚珠丝杆螺母组件包括丝杆16、滚珠螺母17、前端轴承座18、后端轴承座19，高精度的前端轴承座和后端轴承座设置于所述滑台底座的两端，所述丝杆的两端与所述前端轴承座、后端轴承座滑动连接，所述丝杆与滚珠螺母螺纹连接，所述伺服电机的动力输出端用精密的联轴器与丝杆的出轴相连接，以驱动整个丝杆滑台做直线运动，所述轴承座的侧面还可以设置防撞块20。
伺服电机搭配精密滚珠丝杆采用精密联轴器链接传动，从驱动元件到执行元件以及传动元件都有着良好的机械性能，保证了滑台的整体位移定位精度。高精度的轴承座支撑着丝杆不停往复的做正反转运动，使得丝杆的运行更加平稳而且大大提升了丝杆的使用寿命。
所述联轴器的外部可以设置有一联轴器座21，联轴器座的一端与滑台前端 板相连接，另一端通过电机直联法兰板与伺服电机相连接，所述联轴器座上还设置有盖板。
本实用新型一种集成光栅尺的高定位精度丝杆滑台的有益效果是：通过滑动模组与位移反馈模组的配合，实时的监测滑动座的位置，便于实时修正，提高了丝杠滑台的运行和定位精度。
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本实用新型的专利保护范围内。

Claims (7)

  1. 一种集成光栅尺的高定位精度丝杆滑台，其特征在于，包括：滑台底座、滑动模组、位移反馈模组、联轴器、伺服电机、滚珠丝杆螺母组件，
    所述滑动模组包括直线导轨、滑块、滑动座，两个所述直线导轨相对设置于所述滑台底座内，所述滑动座的下端通过所述滑块与所述直线导轨滑动连接，其上端延伸至滑台底座外，所述滑动座与滚珠丝杆螺母组件中的螺母相连接，伺服电机通过联轴器与滚珠丝杆螺母组件相连接，以带动滑动座沿直线滑轨来回运动，
    所述位移反馈模组包括读数头安装件、光栅读数头、光栅尺、光栅尺压板，所述光栅尺通过所述光栅尺压板固定设置于所述滑台底座的侧壁上，所述光栅读数头通过所述读数头安装件固定设置于所述滑动座上，所述光栅读数头与所述光栅尺配合读取位移数据并反馈，以实时反馈滑动座的具体位置。
  2. 根据权利要求1所述的一种集成光栅尺的高定位精度丝杆滑台，其特征在于，所述滑台底座的侧面安装有光电传感器、光电限位开关以及原点开关。
  3. 根据权利要求1所述的一种集成光栅尺的高定位精度丝杆滑台，其特征在于，滑台前端板和滑台后端板分别设置于所述滑台底座的前端和后端。
  4. 根据权利要求1所述的一种集成光栅尺的高定位精度丝杆滑台，其特征在于，滑台上盖板设置于所述滑台底座的顶部，且所述滑台上盖板与所述滑台底座的连接处设置有容许滑动座穿过并滑动的滑动槽。
  5. 根据权利要求1所述的一种集成光栅尺的高定位精度丝杆滑台，其特征在于，所述滚珠丝杆螺母组件包括丝杆、滚珠螺母、前端轴承座、后端轴承座，高精度的前端轴承座和后端轴承座设置于所述滑台底座的两端，所述丝杆的两端与所述前端轴承座、后端轴承座滑动连接，所述丝杆与滚珠螺母螺纹连接，所述伺服电机的动力输出端用精密的联轴器与丝杆的出轴相连接，以驱动整个 丝杆滑台做直线运动。
  6. 根据权利要求1所述的一种集成光栅尺的高定位精度丝杆滑台，其特征在于，轴承座的侧面设置有防撞块。
  7. 根据权利要求1所述的一种集成光栅尺的高定位精度丝杆滑台，其特征在于，所述联轴器的外部设置有一联轴器座，联轴器座的一端与滑台前端板相连接，另一端通过电机直联法兰板与伺服电机相连接，所述联轴器座上还设置有盖板。
PCT/CN2021/099535 2021-04-23 2021-06-11 一种集成光栅尺的高定位精度丝杆滑台 WO2022222245A1 (zh)

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