TWM607567U - Angle transmission accuracy error measuring device for speed reducer - Google Patents

Abstract

An angle transmission accuracy error measurement device of a reducer, which includes a jig, a first motor (servo motor), an encoder at an input end, and an encoder at an output end. The jig can be used to carry the reducer to be tested. The reducer has an input end and an output end, and the input end of the reducer to be tested is connected to the first motor, so that the reducer to be tested is driven to run by the first motor. The input end encoder and the output end encoder are respectively arranged at the input end and the output end of the reducer to be tested. The first motor runs intermittently. When the first motor stops running, the input encoder and the output encoder capture angle data. The input setting can adjust the capture angle position interval, that is, the angle transmission can be changed The resolution of the accuracy error measurement. The smaller the angular position interval of the acquisition, the higher the resolution, the more accurate the accuracy error of all gear trajectory meshing can be presented.

Description

Measuring device for angle transmission accuracy error of reducer

This creation relates to a measuring device, especially a high-resolution angular transmission accuracy error measuring device suitable for a harmonic reducer and other reduction gears.

When the reducer (such as the harmonic reducer) is manufactured, it is usually necessary to measure the angle transmission accuracy error. The existing angle transmission accuracy error measurement is based on the output end rotating 360 degrees for accuracy error analysis, because of the harmonic reducer When the gear meshes, it is a non-positive elliptical rotation movement, that is, each point is a variable angular velocity movement. If it is captured during the rotation process, there may be a capture time error, which will result in the failure to obtain the transmission accuracy error of the actual reducer.

The technical problem to be solved in this creation is to provide a reducer angle transmission accuracy error measurement device for the shortcomings of the existing technology, which can achieve different resolution presentations required for various working conditions, so as to be closer to the actual reducer. Transmission accuracy error.

In order to solve the above-mentioned technical problems, the present invention provides an angle transmission accuracy error measurement device of a reducer, including: a jig, the jig can be used to carry a reducer to be tested, the reducer to be tested has an input terminal and An output end; a first motor; an input shaft connected between the first motor and the input end of the reducer to be tested; an output shaft connected to the output of the reducer to be tested An input end encoder, the input end encoder is an angle encoder, the input end encoder can be used to retrieve the angle data of the input end; and an output end encoder, the output end encoder is an angle encoder , The output end encoder can be used to capture the angle data of the output end; wherein the first motor can drive the input end of the reducer to be tested to rotate intermittently, rotate a predetermined angle and then stop for a predetermined time, repeatedly Rotate and stop for a predetermined number of times, and when stopped, the input end encoder and the output end encoder respectively capture the angle data of the input end and the output end to measure the angle transmission accuracy error.

The beneficial effect of this creation is that the reducer angle transmission accuracy error measurement device provided by this creation includes a fixture, a first motor, an input shaft, an output shaft, an input encoder and an output encoder Device. The first motor can drive the input end of the reducer to be tested to rotate intermittently, rotate a predetermined angle and then stop for a predetermined time, repetitively rotate and stop for a predetermined number of times, and is encoded by the input end encoder and the output end when it stops. The device captures the angle data of the input terminal and the output terminal respectively to measure the accuracy error of the angle transmission. When the time of capturing data in this creation is static, and the input setting can adjust the capturing angle position interval, which can also change the resolution of the angle transmission accuracy error measurement. The smaller the capturing angle position interval, the higher the resolution, and the more It can show the accuracy error of all gear trajectory meshing. Therefore, this creation can achieve different resolution presentations required for various working conditions, so as to get closer to the transmission accuracy error of the actual reducer.

In order to further understand the features and technical content of this creation, please refer to the following detailed descriptions and drawings about this creation. However, the drawings provided are only for reference and explanation, and are not used to limit this creation.

The following are specific specific examples to illustrate the implementation manners disclosed in this creation, and those skilled in the art can understand the advantages and effects of this creation from the content disclosed in this specification. This creation can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this creation. In addition, the drawings of this creation are merely schematic illustrations, and are not depicted in actual size, and are stated in advance. The following implementations will further describe the related technical content of this creation in detail, but the disclosed content is not intended to limit the protection scope of this creation. In addition, the term "or" used in this document may include any one or a combination of more of the associated listed items depending on the actual situation.

[Example]

Please refer to Figure 1. This creation provides a gearbox angular transmission accuracy error measurement device, including a fixture 1, a first motor 2, an input shaft 3, an output shaft 4, an input end encoder 5 and an output End encoder 6.

The jig 1 can be used to carry a reducer 100 to be tested, and the reducer 100 to be tested is stably arranged in the jig 1. The type of the reducer to be tested 100 is not limited. In this embodiment, The reducer to be tested 100 is a harmonic reducer (TD), and the reducer to be tested 100 has an input terminal 101 and an output terminal 102.

The first motor 2 may be a servo motor or the like, and the input shaft 3 and the output shaft 4 may include components such as a transmission rod and a coupling. The input shaft 3 and the output shaft 4 are respectively connected to the input terminal 101 and the output terminal 102 of the reducer to be tested 100, that is, the input shaft 3 is connected between the first motor 2 and the input terminal 101 of the reducer to be tested 100. When the first motor 2 is started, the input shaft 3 can drive the input end 101 of the reducer to be tested 100, and the output shaft 4 can be driven by the output end 102 of the reducer to be tested 100.

This creation mainly sets the adjustable capture angle position interval on the input terminal 101 of the reducer to be tested 100, that is, the first motor 2 can drive the input terminal 101 of the reducer to be tested 100 to rotate intermittently to a predetermined angle After that, stop for a predetermined time, and repeat the rotation and stop for a predetermined number of times, so that the input terminal 101 of the reducer to be tested 100 rotates intermittently until the test is completed. The first motor 2 can also perform different rotation angle changes to change the rotation angle of the input terminal 101 of the reducer 100 to be tested.

In this embodiment, a second motor 7 can also be further included, and the second motor 7 can output rotational power to facilitate other tests, so that the invention can have more measurement functions. The second motor 7 may be a servo motor or the like, and the output shaft 4 is connected between the second motor 7 and the output terminal 102 of the reducer 100 to be tested.

The input end encoder 5 and the output end encoder 6 are respectively arranged on both sides of the fixture 1, that is, the input end encoder 5 can be arranged between the fixture 1 and the first motor 2, and the output end encoder 6 can be arranged between the jig 1 and the second motor 7. The input end encoder 5 and the output end encoder 6 are angle encoders, which can be used to synchronously capture the data of the rotation angle of the input end and the output end. The input shaft 3 corresponds to the input end encoder 5 so that the input end encoder 5 is used to capture the angle data of the input end 101. The output shaft 4 corresponds to the output end encoder 6 so that the output end encoder 6 can be used to capture the angle data of the output end 102.

In this embodiment, it may further include a first torsion meter 8 and a second torsion meter 9. The first torsion meter 8 and the second torsion meter 9 are torque sensors, and the first torsion meter 8 is connected to Between the second motor 7 and the output terminal 102 of the reducer to be tested 100, the second torsion meter 9 is connected between the first motor 2 and the input terminal 101 of the reducer to be tested 100, and can be used for rigidity testing, etc. The test enables this creation to have more measurement functions.

When the first motor 2 is started, the input terminal 101 of the reducer to be tested 100 can be driven by the input shaft 3, and the input terminal encoder 5 can retrieve the angle data of the input terminal. In addition, the output shaft 4 can be driven by the output terminal 102 of the reducer to be tested 100, and the output terminal encoder 6 can capture the angle data of the output terminal. In this creation, the input end encoder 5 and the output end encoder 6 can respectively capture the angle data of the input end 101 and the output end 102, and output the results through a software program for measuring the accuracy error of the angle transmission. The original creation is to capture data when the first motor 2, the input shaft 3, the output shaft 4 and the reducer 100 to be tested are stopped.

In this creation, the input terminal is set to adjust the position interval of the capture angle, and the rotation angle of the input terminal is not limited, and can be any predetermined angle, such as 0.8 degrees to 360 degrees. As shown in the table below, this author captures data when it stops. Assuming that the reduction ratio of the reducer is 80, the input angle cuts are 360 degrees, 80 degrees, 8 degrees, and 0.8 degrees. The interval time is not limited and can be any time. The output angle cutting is 4.5 degrees, 1 degree, 0.1 degree and 0.01 degree. The total output end angle (fixed) during the test is 360 degrees. The total amount of captured data is 80, 360, 3600 and 36000 respectively. As shown in Figures 2 to 4, the relationship between the output shaft angle and the transmission error of the input angle cutting 360 degrees, 80 degrees and 8 degrees, respectively, shows that this creation can change the resolution of the angle transmission accuracy error measurement. The smaller the angular position interval, the higher the resolution. Motor action setting (capture data when stopped), assuming that the reduction ratio of the reducer is 80 A. Input angle cutting B. Interval C. Angle cutting at the output end D. Total output end angle during test (fixed) Motor action description Total amount of data retrieved 360 degrees anytime 360 degrees ÷ reduction ratio 80 = 4.5 degrees 360 degrees Input terminal: 360°→stop→360°→stop... Output terminal: 4.5°→stop→4.5°→stop... 80 80 degrees 80 degrees ÷ reduction ratio 80 = 1 degree Input terminal: 80 degree → stop → 80 degree → stop... Output terminal: 1 degree → stop → 1 degree → stop... 360 8 degrees 8 degrees ÷ reduction ratio 80 = 0.1 degrees Input terminal: 8 degree → stop → 8 degree → stop... Output terminal: 0.1 degree → stop → 0.1 degree → stop... 3600 0.8 degrees 0.8 degrees ÷ reduction ratio 80 = 0.01 degrees Input terminal: 0.8 degree → stop → 0.8 degree → stop... Output terminal: 0.01 degree → stop → 0.01 degree → stop... 36000

[Beneficial effects of the embodiment]

The beneficial effect of this creation is that the reducer angle transmission accuracy error measurement device provided by this creation includes a fixture, a first motor, an input shaft, an output shaft, an input encoder and an output encoder Device. The first motor can drive the input end of the reducer to be tested to rotate intermittently, rotate a predetermined angle and then stop for a predetermined time, repetitively rotate and stop for a predetermined number of times, and is encoded by the input end encoder and the output end when it stops. The device captures the angle data of the input terminal and the output terminal respectively to measure the accuracy error of the angle transmission. When the time of capturing data in this creation is static, and the input setting can adjust the capturing angle position interval, which can also change the resolution of the angle transmission accuracy error measurement. The smaller the capturing angle position interval, the higher the resolution, and the more It can show the accuracy error of all gear trajectory meshing. Therefore, this creation can achieve different resolution presentations required for various working conditions, so as to get closer to the transmission accuracy error of the actual reducer.

The content disclosed above is only a preferred and feasible embodiment of this creation, and does not limit the scope of patent application for this creation. Therefore, all equivalent technical changes made using this creation specification and schematic content are included in the application for this creation. Within the scope of the patent.

1: Fixture 2: The first motor 3: input shaft 4: output shaft 5: Input encoder 6: Output encoder 7: The second motor 8: The first torque meter 9: The second torque meter 100: reducer to be tested 101: Input 102: output

Figure 1 is a schematic diagram of the measuring device for measuring the angular transmission accuracy error of the reducer created.

Figure 2 is a diagram of the relationship between the angle of the output shaft and the transmission error (1).

Figure 3 is a diagram of the relationship between the angle of the creative output shaft and the transmission error (2).

Figure 4 is a diagram of the relationship between the angle of the creative output shaft and the transmission error (3).

1: Fixture

2: The first motor

3: input shaft

4: output shaft

5: Input encoder

6: Output encoder

7: The second motor

8: The first torque meter

9: The second torque meter

100: reducer to be tested

101: Input

102: output

Claims (9)

A measuring device for angular transmission accuracy error of reducer, including: A jig, the jig can be used to carry a reducer to be tested, the reducer to be tested has an input end and an output end; A first motor An input shaft connected between the first motor and the input end of the reducer to be tested; An output shaft, which is connected to the output end of the reducer to be tested; An input end encoder, the input end encoder is an angle encoder, and the input end encoder can be used to retrieve the angle data of the input end; and An output end encoder, the output end encoder is an angle encoder, and the output end encoder can be used to retrieve the angle data of the output end; The first motor can drive the input end of the reducer to be tested to rotate intermittently, rotate a predetermined angle and then stop for a predetermined time, repetitively rotate and stop for a predetermined number of times, and use the input encoder when it stops. And the output end encoder respectively capture the angle data of the input end and the output end for measuring the angle transmission accuracy error. According to claim 1, the angle transmission accuracy error measurement device of the reducer, wherein the input end encoder is arranged between the jig and the first motor. The device for measuring the angle transmission accuracy error of the reducer according to claim 1, wherein the first motor drives the input end of the reducer to be tested to rotate at a predetermined angle of 0.8 degrees to 360 degrees. The angle transmission accuracy error measurement device of the reducer according to claim 1, wherein the input shaft and the output shaft are located on the same axis. According to claim 1, the angle transmission accuracy error measurement device of the reducer, wherein the first motor is a servo motor. The device for measuring the angular transmission accuracy error of the reducer according to claim 1, which further includes a second motor, the output shaft is connected between the second motor and the output end of the reducer to be tested, and the output end is encoded The device is arranged between the jig and the second motor. The device for measuring the angular transmission accuracy error of the reducer according to claim 6, which further includes a first torsion meter connected between the second motor and the output end of the reducer to be tested. According to claim 6, the angle transmission accuracy error measuring device of the reducer, wherein the second motor is a servo motor. The device for measuring the angular transmission accuracy error of the reducer according to claim 1, which further includes a second torque meter connected between the first motor and the input end of the reducer to be tested.

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