WO2020108469A1 - 旋转编码器测试装置 - Google Patents

旋转编码器测试装置 Download PDF

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Publication number
WO2020108469A1
WO2020108469A1 PCT/CN2019/120863 CN2019120863W WO2020108469A1 WO 2020108469 A1 WO2020108469 A1 WO 2020108469A1 CN 2019120863 W CN2019120863 W CN 2019120863W WO 2020108469 A1 WO2020108469 A1 WO 2020108469A1
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Prior art keywords
encoder
sample
code wheel
reading head
rotary encoder
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English (en)
French (fr)
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刘元江
周忠厚
刘元宜
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Goertek Inc
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Goertek Inc
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains

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  • the accuracy test for rotary encoders in the current industry is usually a motor that drives a sample rotary encoder 2 through a synchronous belt variable speed drive 17 of a belt transmission speed change system, in which the reference encoder 9 rotates on the motor On 7, the sample encoder 2 is installed on the test shaft, and the accuracy of the sample encoder 2 is judged by comparing the output position angles of the two encoders. Due to the elasticity of the timing belt and the installation gap, the stability of the test results is poor, and the test accuracy is also affected.
  • the technical problem to be solved by the present invention is to provide a rotary encoder test device, which can improve the test accuracy and test stability of the rotary encoder.
  • the rotary encoder test device includes a frame, a motor is installed on the frame, the motor includes a coaxial line output shaft one and output shaft two; the output shaft one is connected The shaft is connected to one end of the drive shaft, and the other end of the drive shaft is used to fixedly connect the sample encoder code wheel of the sample rotary encoder, the sample encoder reading head of the sample rotary encoder and the sample rotary encoder
  • the encoder disc of the sample encoder is oppositely arranged and fixedly connected to the frame; or, the other end of the drive shaft is used to fixedly connect the sample encoder reading head of the sample rotary encoder, the sample
  • the sample encoder code wheel of the rotary encoder is arranged opposite to the sample encoder reading head of the sample rotary encoder and fixedly connected to the frame; the reference encoder is fixedly connected to the output shaft two
  • a reference encoder code wheel the reference encoder code wheel is relatively provided with a reference encoder reading head, the reference encoder reading head is fixedly arranged on the inner wall of the
  • reference encoder code wheel is fixedly connected to the output shaft two through a reference encoder code wheel base.
  • a bracket protrusion is provided at an end of the bracket, and the sample encoder reading head or the sample encoder code disk is fixedly connected to the bracket protrusion.
  • bracket is provided integrally with the bracket protrusion.
  • the reference encoder code wheel is fixedly connected to the reference encoder on the output shaft two, and the reference encoder code wheel is relatively provided with a reference encoder reading head, and the reference encoder reading head is fixedly arranged on the inner wall of the motor cover of the motor; or, the output shaft Secondly, the reference encoder reading head fixedly connected with the reference encoder, the reference encoder reading head is relatively provided with a reference encoder code wheel, and the reference encoder code wheel is fixedly arranged on the inner wall of the motor cover of the motor.
  • the output shaft 1, output shaft 2 and drive shaft of the rotary encoder test device are all on the same axis, which effectively reduces the test error, and enables the test device to test the accuracy of the sample encoder and the reference encoder The accuracy is tested.
  • FIG. 1 is a perspective view of a conventional rotary encoder testing device
  • FIG. 2 is an exploded view of the rotary encoder test device of the present invention
  • FIG. 4 is a cross-sectional view taken along the line B-B in FIG. 3;
  • FIG. 5 is a schematic structural view of the use state of the rotary encoder test device of the present invention.
  • a rotary encoder testing device includes a frame, and a motor 7 is installed on the frame, and the motor 7 includes an output shaft 71 arranged coaxially ⁇ Output ⁇ 72.
  • the output shaft 71 is connected to one end of the drive shaft 3 through the coupling 5, the drive shaft 3 is mounted on the bearing 19, and a spacer 8 is sleeved on the drive shaft 3 to prevent the axial movement of the output shaft 71.
  • the other end of the drive shaft 3 is used to fixedly connect the sample encoder code wheel 21 of the sample rotary encoder 2, and the other end of the drive shaft 3 is fixedly connected to the sample encoder wheel 21 of the sample rotary encoder 2, the sample rotary encoder
  • the code wheel 21 and the drive shaft 3 can be fixedly connected by interference fit, or fixedly connected by glue connection, and of course, can also be connected by other conventional detachable connection methods.
  • the sample encoder code wheel 21 is oppositely provided with a sample encoder reading head 22, and the sample encoder reading head 22 can be fixedly connected to the rack by screws.
  • the other end of the drive shaft 3 is used to fixedly connect the sample encoder reading head 22 of the sample rotary encoder 2, the sample encoder code wheel 21 of the sample rotary encoder 2 and the sample encoder reading head 22 of the sample rotary encoder 2 Relatively arranged and fixedly connected to the rack, the sample encoder code wheel 21 can be fixedly connected to the rack by screws.
  • a reference encoder code wheel 91 of the reference encoder 9 is fixedly connected to the output shaft two 72.
  • the reference encoder code wheel 91 is preferably fixedly connected to the output shaft two 72 via the reference encoder code wheel base 12.
  • the reference encoder code wheel 91 is oppositely provided with a reference encoder reading head 92, and the reference encoder reading head 92 may be fixed on the inner wall of the motor cover 10 of the motor 7 by screws.
  • the reference encoder reading head 92 of the reference encoder 9 is fixedly connected to the output shaft two 72, and the reference encoder reading head 92 is oppositely provided with a reference encoder code wheel 91, and the reference encoder code wheel 91 can be fixedly set by screws.
  • the rotary encoder test device further includes a pitch adjustment shaft 1, the other end of the drive shaft 3 is an internal hollow structure 32, one end of the pitch adjustment shaft 1 is inserted into the internal hollow structure 32, and the other end of the pitch adjustment shaft 1 is used for fixed connection
  • the sample encoder code wheel 21 or the sample encoder reading head 22, and the sample encoder code wheel 21 or the sample encoder reading head 22 are fixedly connected to the other end of the pitch adjustment shaft 1.
  • the sample encoder code wheel 21 can be fixedly connected by interference fit, or fixedly connected by glue connection, and of course, can also be connected by other conventional detachable connection methods.
  • the driving shaft 3 is provided with a radial positioning pin shaft hole 31, and a positioning pin shaft for positioning the pitch adjustment shaft 1 is provided in the positioning pin shaft hole 31. After adjusting the length of the distance adjustment shaft 1 extending beyond the drive shaft 3, use the positioning pin shaft to position the distance adjustment shaft 1 to prevent the axial movement of the distance adjustment shaft 1.
  • the sample encoder code wheel 21 is preferably fixedly connected to the pitch adjustment shaft 1 through the sample encoder code wheel base 11.
  • the frame includes a fixed motor mounting frame 6 and a bracket 4, the motor 7 is fixedly mounted on one side of the motor mounting frame 6, the bracket 4 is fixedly mounted on the other side of the motor mounting frame 6, the sample encoder reading head 22 or The sample encoder code wheel 21 is fixedly connected to the bracket 4.
  • the bracket 4 is preferably provided with a bracket protrusion 41, and two bracket protrusions 41 are preferably provided symmetrically, and the bracket 4 and the bracket protrusion 41 are preferably provided integrally.
  • the sample encoder reading head 22 or the sample encoder code wheel 21 is preferably fixedly connected to the end of the bracket protrusion 41 by screws 18.
  • the operator installs the sample encoder code wheel 21 of the sample rotary encoder 2 at the end of the pitch adjustment shaft 1, and installs the sample encoder reading head 22 of the sample encoder 2 at the end of the bracket protrusion 41 through the screw 18
  • the distance between the sample encoder code wheel 21 and the sample encoder reading head 22 is adjusted.
  • the sample rotary encoder 2 and the drive one 13 are electrically connected through the wire 16
  • the reference encoder 9 and the drive two 14 are electrically connected through the wire 16
  • the drive one 13 and the drive two 14 are electrically connected to the comparison display system 15 through the wire 16 .
  • the operator installs the encoder code wheel of the rotary encoder with higher accuracy than the reference encoder 9 at the end of the pitch adjustment shaft 1 and installs the encoder reading head on the bracket protrusion 41 through the screw 18.
  • the rotary encoder and the driver one 13 are electrically connected through the wire 16
  • the reference encoder 9 and the driver two 14 are electrically connected through the wire 16
  • the driver one 13 and the driver two 14 are electrically connected to the comparison display system 15 through the wire 16.
  • the pulse signals of the two reading heads are converted into angle signals by their respective drivers, and the measured values and measured differences of the two encoders are output through the comparison and display system 15, and the reference encoder can be discriminated based on the preset difference range 9 precision accuracy.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

一种旋转编码器测试装置，包括机架，电机（7）安装在机架上，电机（7）包括同轴线设置的输出轴一（71）和输出轴二（72），电机（7）输出轴一（71）和输出轴二（72）同轴线设置，电机输出轴一(71)通过联轴器(5)与驱动轴（3）一端连接，输出轴一（71）直接驱动驱动轴（3）；驱动轴（3）另一端用于固定连接样品编码器码盘（21），样品编码器读数头（22）与样品编码器码盘（21）相对设置并且与机架固定连接；样品编码器读数头（22）与样品编码器码盘（21）可以互换位置。输出轴二（72）上固定连接有基准编码器码盘（91），基准编码器码盘（91）相对设置有固定设置在电机盖（10）内壁上的基准编码器读数头（92），基准编码器码盘（91）与基准编码器读数头（92）可以互换位置。输出轴一（71）、输出轴二（72）以及驱动轴（3）皆在同一轴线上，有效减小测试误差，既可以对样品编码器（2）精度进行测试，也可以对基准编码器（9）精度进行测试。

Description

旋转编码器测试装置 技术领域
本发明属于编码器测试设备技术领域，具体涉及一种旋转编码器测试装置。
背景技术
如图1所示，现有技术中，目前行业内对于旋转编码器的精度测试通常是电机通过皮带传动变速系17的同步带变速驱动样品旋转编码器2，其中基准编码器9安转在电机7上，样品编码器2安装在测试轴上，通过比较两个编码器的输出位置角度，判别样品编码器2的准确性。由于同步带具有弹性及安装间隙，造成测试结果的稳定性较差、测试精度也受到影响。
发明内容
本发明所要解决的技术问题是：提供一种旋转编码器测试装置，能够提高旋转编码器的测试精度以及测试稳定性。
为解决上述技术问题，本发明的技术方案是：
旋转编码器测试装置，所述旋转编码器测试装置包括机架，所述机架上安装有电机，所述电机包括同轴线设置的输出轴一和输出轴二；所述输出轴一通过联轴器与驱动轴的一端连接，所述驱动轴的另一端用于固定连接样品旋转编码器的样品编码器码盘，所述样品旋转编码器的样品编码器读数头与所述样品旋转编码器的所述样品编码器码盘相对设置并且与所述机架固定连接；或者，所述驱动轴的另一端用于固定连接所述样品旋转编码器的所述样品编码器读数头，所述样品旋转编码器的所述样品编码器码盘与所述样品旋转编码器的所述样品编码器读数头相对设置并且与所述机架固定连接；所述输出轴二上固定连接有基准编码器的基准编码器码盘，所述基准编码器码盘相对设置有基准编码器读数头，所述基准编码器读数头固定设置于所述电机的电机盖内壁；或者，所述输出轴二上固定连接有基准编码器的所述基准编码器读数头，所述基准编码器读数头相对设置有所述基准编码器码盘，所述基准编码器码盘固定设置于所述电机的电机盖内壁。
进一步的，所述旋转编码器测试装置还包括间距调整轴，所述驱动轴的另一端为内部中空结构，所述间距调整轴的一端插接于所述内部中空结构中，所述间距调整轴的另一端用于固定连接所述样品编码器码盘或者所述样品编码器读数头。
进一步的，所述驱动轴上设置有径向的定位销轴孔，所述定位销轴孔中设置有用于定位所述间距调整轴的定位销轴。
进一步的，所述样品编码器码盘通过样品编码器码盘座固定连接于所述间距调整轴。
进一步的，所述基准编码器码盘通过基准编码器码盘座固定连接于所述输出轴二。
进一步的，所述机架包括固定连接的电机安装架和托架，所述电机固定安装于所述电机安装架的一侧，所述托架固定安装于所述电机安装架的另一侧，所述样品编码器读数头或者所述样品编码器码盘固定连接于所述托架。
进一步的，所述托架的端部设置有托架凸起，所述样品编码器读数头或者所述样品编码器码盘固定连接于所述托架凸起。
进一步的，所述托架与所述托架凸起一体设置。
进一步的，所述样品编码器读数头或者样品编码器码盘与所述托架凸起通过螺钉固定连接。
由于采用了上述技术方案，本发明的有益效果是：
旋转编码器测试装置的电机安装在机架上，电机的输出轴一和输出轴二同轴线设置，电机的输出轴一通过联轴器与驱动轴的一端连接，通过联轴器的连接，电机的输出轴一直接驱动驱动轴，有效减小误差。驱动轴的另一端用于固定连接样品旋转编码器的样品编码器码盘，样品编码器读数头与样品编码器码盘相对设置并且与机架固定连接；或者，驱动轴的另一端用于固定连接样品旋转编码器的样品编码器读数头，样品编码器码盘与样品编码器读数头相对设置并且与机架固定连接。输出轴二上固定连接有基准编码器的基准编码器码盘，基准编码器码盘相对设置有基准编码器读数头，基准编码器读数头固定设置在 电机的电机盖内壁上；或者，输出轴二上固定连接有基准编码器的基准编码器读数头，基准编码器读数头相对设置有基准编码器码盘，基准编码器码盘固定设置在电机的电机盖内壁上。旋转编码器测试装置的输出轴一、输出轴二以及驱动轴皆在同一轴线上，有效减小测试误差，并且使得该测试装置既可以对样品编码器的精度进行测试，也可以对基准编码器的精度进行测试。
旋转编码器测试装置还包括间距调整轴，电机的输出轴一通过联轴器与驱动轴的一端连接，驱动轴的另一端为内部中空结构，间距调整轴的一端插接在内部中空结构中，间距调整轴的另一端用于固定连接样品编码器码盘或者编码器读数头，在对不同的样品旋转编码器精度进行测试时，由于不同的样品旋转编码器的样品编码器码盘与样品编码器读数头之间的距离不一样，可以通过间距调整轴伸出驱动轴的长度来调整样品编码器码盘与样品编码器读数头之间的距离，实现样品旋转编码器测试装置的通用性。
附图说明
图1是现有技术的旋转编码器测试装置的立体图；
图2是本发明的旋转编码器测试装置的爆炸图；
图3是图2组装后A-A向的剖视图；
图4是图3中B-B向的剖视图；
图5是本发明的旋转编码器测试装置使用状态的结构示意图；
图中，1-间距调整轴，2-样品旋转编码器，21-样品编码器码盘，22-样品编码器读数头，3-驱动轴，31-定位销轴孔，32-内部中空结构，4-托架，41-托架凸起，5-联轴器，6-电机安装架，7-电机，71-输出轴一，72-输出轴二，8-隔套，9-基准编码器，91-基准编码器码盘，92-基准编码器读数头，10-电机盖，11-样品编码器码盘座，12-基准编码器码盘座,13-驱动器一，14-驱动器二，15-比较显示系统，16-导线，17-皮带传动变速系，18-螺钉，19-轴承。
具体实施方式
下面结合附图和实施例对本发明进一步说明。
结合图2、图3、图4以及图5共同所示，一种旋转编码器测试装置，它包 括机架，在机架上安装有电机7，电机7包括同轴线设置的输出轴一71和输出轴二72。
输出轴一71通过联轴器5与驱动轴3的一端连接，驱动轴3安装在轴承19上，在驱动轴3上套设有隔套8，防止输出轴一71的轴向窜动。驱动轴3的另一端用于固定连接样品旋转编码器2的样品编码器码盘21，在驱动轴3的另一端固定连接有样品旋转编码器2的样品编码器码盘21，样品旋转编码器码盘21与驱动轴3可以通过过盈配合的方式进行固定连接，或者通过胶连接进行固定连接，当然，也可以通过其他常规的可拆卸连接方式进行连接。样品编码器码盘21相对设置有样品编码器读数头22，样品编码器读数头22可以通过螺钉固定连接在机架上。
或者，驱动轴3的另一端用于固定连接样品旋转编码器2的样品编码器读数头22，样品旋转编码器2的样品编码器码盘21与样品旋转编码器2的样品编码器读数头22相对设置并且与机架固定连接，样品编码器码盘21可以通过螺钉固定连接在机架上。
输出轴二72上固定连接有基准编码器9的基准编码器码盘91，基准编码器码盘91优选通过基准编码器码盘座12固定连接在输出轴二72上。基准编码器码盘91相对设置有基准编码器读数头92，基准编码器读数头92可以通过螺钉固定设置在电机7的电机盖10内壁上。
或者，输出轴二72上固定连接有基准编码器9的基准编码器读数头92，基准编码器读数头92相对设置有基准编码器码盘91，基准编码器码盘91可以通过螺钉固定设置在电机7的电机盖10内壁上。
旋转编码器测试装置还包括间距调整轴1，驱动轴3的另一端为内部中空结构32，间距调整轴1的一端插接在内部中空结构32中，间距调整轴1的另一端用于固定连接样品编码器码盘21或者样品编码器读数头22，间距调整轴1的另一端固定连接有样品编码器码盘21或者样品编码器读数头22。样品编码器码盘21可以通过过盈配合的方式进行固定连接，或者通过胶连接进行固定连接，当然，也可以通过其他常规的可拆卸连接方式进行连接。
驱动轴3上设置有径向的定位销轴孔31，定位销轴孔31中设置有用于定位间距调整轴1的定位销轴。调整好间距调整轴1伸出驱动轴3的长度后，使用定位销轴将间距调整轴1进行定位，防止间距调整轴1的轴向窜动。样品编码器码盘21优选通过样品编码器码盘座11固定连接在间距调整轴1上。
机架包括固定连接的电机安装架6和托架4，电机7固定安装在电机安装架6的一侧，托架4固定安装在电机安装架6的另一侧，样品编码器读数头22或者样品编码器码盘21固定连接在托架4上。
托架4优选设置有托架凸起41，托架凸起41优选对称设置有两个，托架4与托架凸起41优选一体设置。样品编码器读数头22或者样品编码器码盘21优选通过螺钉18固定连接在托架凸起41的端部。
本说明书中涉及到的带有序号命名的技术特征(如输出轴一、输出轴二等)，仅仅是为了区别各技术特征，并不代表各技术特征之间的位置关系、安装顺序及工作顺序等。
下面以使用本发明的旋转编码器测试装置对样品编码器的精度进行测试的过程进行详细描述：
操作人员将样品旋转编码器2的样品编码器码盘21安装在间距调整轴1的端部，将样品编码器2的样品编码器读数头22通过螺钉18安装在托架凸起41的端部，通过调整间距调整轴1在驱动轴3的内部中空结构32中的位置，调整样品编码器码盘21与样品编码器读数头22之间的距离。将样品旋转编码器2与驱动器一13通过导线16电连接，将基准编码器9与驱动器二14通过导线16电连接，同时，驱动器一13和驱动器二14通过导线16与比较显示系统15电连接。将两个读数头的脉冲信号通过各自的驱动器转换为角度信号，并通过比较显示系统15输出两个编码器的测量值以及测量差值，即可根据预设的差值范围，判别测试样品旋转编码器2的精度准确性。上述测试过程对于本领域技术人员来说属于公知常识，在此不再赘述。
下面以使用本发明的旋转编码器测试装置对基准编码器的精度进行测试的过程进行详细描述：
操作人员将精度高于基准编码器9的旋转编码器的编码器码盘安装在间距调整轴1的端部，将编码器读数头通过螺钉18安装在托架凸起41上。将旋转编码器与驱动器一13通过导线16电连接，将基准编码器9与驱动器二14通过导线16电连接，同时，驱动器一13和驱动器二14通过导线16与比较显示系统15电连接。将两个读数头的脉冲信号通过各自的驱动器转换为角度信号，并通过比较显示系统15输出两个编码器的测量值以及测量差值，即可根据预设的差值范围，判别基准编码器9的精度准确性。上述测试过程对于本领域技术人员来说属于公知常识，在此不再赘述。
在本说明书的描述中，需要理解的是，“内壁”等描述的方位或者位置关系是基于附图所示的方位或者位置关系，仅仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
虽然以上描述了本发明的具体实施方式，但是本领域的技术人员应该理解，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例，这些仅仅是举例说明，本发明的保护范围是由所附权利要求书限定。本领域的技术人员在不背离本发明的原理和实质的前提下，在没有经过任何创造性的劳动下，可以对这些实施方式做出多种变更或修改，但这些变更和修改均落入本发明的保护范围。

Claims (9)

  1. 旋转编码器测试装置，所述旋转编码器测试装置包括机架，所述机架上安装有电机，其特征在于，
    所述电机包括同轴线设置的输出轴一和输出轴二；
    所述输出轴一通过联轴器与驱动轴的一端连接，所述驱动轴的另一端用于固定连接样品旋转编码器的样品编码器码盘，所述样品旋转编码器的样品编码器读数头与所述样品旋转编码器的所述样品编码器码盘相对设置并且与所述机架固定连接；或者，所述驱动轴的另一端用于固定连接所述样品旋转编码器的所述样品编码器读数头，所述样品旋转编码器的所述样品编码器码盘与所述样品旋转编码器的所述样品编码器读数头相对设置并且与所述机架固定连接；
    所述输出轴二上固定连接有基准编码器的基准编码器码盘，所述基准编码器码盘相对设置有基准编码器读数头，所述基准编码器读数头固定设置于所述电机的电机盖内壁；或者，所述输出轴二上固定连接有基准编码器的所述基准编码器读数头，所述基准编码器读数头相对设置有所述基准编码器码盘，所述基准编码器码盘固定设置于所述电机的电机盖内壁。
  2. 如权利要求1所述的旋转编码器测试装置，其特征在于，所述旋转编码器测试装置还包括间距调整轴，所述驱动轴的另一端为内部中空结构，所述间距调整轴的一端插接于所述内部中空结构中，所述间距调整轴的另一端用于固定连接所述样品编码器码盘或者所述样品编码器读数头。
  3. 如权利要求2所述的旋转编码器测试装置，其特征在于，所述驱动轴上设置有径向的定位销轴孔，所述定位销轴孔中设置有用于定位所述间距调整轴的定位销轴。
  4. 如权利要求2所述的旋转编码器测试装置，其特征在于，所述样品编码器码盘通过样品编码器码盘座固定连接于所述间距调整轴。
  5. 如权利要求1所述的旋转编码器测试装置，其特征在于，所述基准编码器码盘通过基准编码器码盘座固定连接于所述输出轴二。
  6. 如权利要求1所述的旋转编码器测试装置，其特征在于，所述机架包括固定连接的电机安装架和托架，所述电机固定安装于所述电机安装架的一侧，所述托架固定安装于所述电机安装架的另一侧，所述样品编码器读数头或者所 述样品编码器码盘固定连接于所述托架。
  7. 如权利要求6所述的旋转编码器测试装置，其特征在于，所述托架的端部设置有托架凸起，所述样品编码器读数头或者所述样品编码器码盘固定连接于所述托架凸起。
  8. 如权利要求7所述的旋转编码器测试装置，其特征在于，所述托架与所述托架凸起一体设置。
  9. 如权利要求8所述的旋转编码器测试装置，其特征在于，所述样品编码器读数头或者样品编码器码盘与所述托架凸起通过螺钉固定连接。
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