Automatic centering system for a motor test platform

Abstract

This application discloses an automatic alignment system for a motor testing platform, used to adjust the posture of the motor under test so that its shaft center is in a aligned position. The system includes a main unit, a movable base, a first laser sensing group, and a second laser sensing group. The movable base includes a clamping device and a multi-axial movable seat. The clamping device is disposed on the multi-axial movable seat and is used to detachably clamp the motor under test. The laser sensing groups are disposed on the reference surface of the front vertical frame of the motor testing platform, providing horizontal or vertical position detection for the shaft center at the detection position, thereby obtaining first and second offset information of the shaft center. This information is then used by the main unit to control the multi-axial movable seat to align the shaft center. This achieves automated alignment operations and can be further applied to production lines.

Description

[Technical Field]

[0001] This invention relates to the technical field of a motor testing platform, and more specifically, to an automatic alignment system for a motor testing platform. [Background Technology]

[0002] For motor power testing, the motor under test needs to be locked on the front vertical frame, and the shaft of the motor under test can be connected to a connecting shaft of the motor test platform through the opening of the front vertical frame, so that the motor test platform can execute the test program.

[0003] Under high-speed testing conditions, the alignment between the shaft of the motor under test and the connecting shaft becomes extremely important. Even though the coupling can increase the tolerance of the connection between the shaft and the connecting shaft, the accuracy of the alignment between the shaft and the connecting shaft is becoming increasingly important under high-speed testing conditions. The more precise the alignment, the less vibration and noise will occur, which will affect the life of the motor test platform and also damage the shaft of the motor under test, which serves as the transmission shaft.

[0004] Traditionally, to achieve high-precision alignment, installers need to accurately lock the motor under test onto the front stand and ensure precise alignment between the shaft and the connecting shaft. However, this consumes a significant amount of installation time. [Summary of the Invention]

[0005] In some embodiments of the present invention, the problem of high time consumption caused by personnel performing centering operations is solved.

[0006] In some embodiments of the present invention, a configuration arrangement of components of an automatic centering system is provided, enabling the automatic centering system to provide accurate and efficient centering operations.

[0007] According to some embodiments, an automatic alignment system for a motor testing platform is proposed for adjusting the posture of a motor under test so that its shaft center is in a aligned position, allowing the motor testing platform to execute a test program after the connecting shaft extending from the first shaft is aligned with the shaft center. The automatic alignment system includes: a main unit, a movable base, a first laser sensing group, and a second laser sensing group. The movable base includes a clamping device and a multi-axial movable seat. The clamping device is disposed on the multi-axial movable seat and is used to detachably clamp the motor under test. The first laser sensing group is disposed on the reference surface of the front upright of the motor testing platform and provides horizontal plane position detection for the shaft center at the detection position, so as to obtain first offset information of the shaft center on a horizontal plane perpendicular to the first shaft. The second laser sensing group is disposed on the reference surface and provides vertical plane position detection for the shaft center, and obtains second offset information of the shaft center on a vertical plane perpendicular to the horizontal axis. The main unit is used to control the multi-axial movable seat to align the shaft center based on the first offset information and the second offset information.

[0008] According to some embodiments, the first sensing area of ​​the first laser sensing group can be defined on a horizontal plane. When the axis is at the detection position, the side edge of the axis defines a first front identification point, a second front identification point, a first rear identification point, and a second rear identification point located within the first sensing area on the horizontal plane. The line connecting the first front identification point and the second front identification point is parallel to the horizontal axis. The line connecting the first rear identification point and the second rear identification point is parallel to the horizontal axis. The line connecting the first front identification point and the first rear identification point is parallel to the first axis. The second sensing area of ​​the second laser sensing group can be defined on a vertical plane. When the axis is at the detection position, the side edge of the axis defines a third front identification point, a fourth front identification point, a third rear identification point, and a fourth rear identification point located within the second sensing area on the vertical plane. The line connecting the third front identification point and the fourth front identification point is parallel to the vertical axis. The line connecting the third rear identification point and the fourth rear identification point is parallel to the vertical axis. The line connecting the third front identification point and the third rear identification point is parallel to the first axis.

[0009] According to some embodiments, the first offset information may include first and second horizontal offsets. The first horizontal offset refers to the distance between the first front identification point and the first front reference point within the first sensing area, and the distance between the second front identification point and the second front reference point within the first sensing area, and the degree of difference between these two distances. The second horizontal offset refers to the distance between the first rear identification point and the first rear reference point within the first sensing area, and the distance between the second rear identification point and the second rear reference point within the first sensing area, and the degree of difference between these two distances. Wherein, when the axis is in a concentric position, both the first and second horizontal offsets may be lower than or equal to a threshold value.

[0010] According to some embodiments, the second offset information includes first and second vertical offsets. The first vertical offset refers to the distance between the third front identification point and the third front reference point within the second sensing area, and the distance between the fourth front identification point and the fourth front reference point within the second sensing area, and the degree of difference between these two distances. The second vertical offset refers to the distance between the third rear identification point and the third rear reference point within the second sensing area, and the distance between the fourth rear identification point and the fourth rear reference point within the second sensing area, and the degree of difference between these two distances. Wherein, when the axis is in a concentric position, both the first and second vertical offsets can be lower than or equal to a threshold value.

[0011] According to some embodiments, the first front reference point, the first rear reference point, the second front reference point, and the second rear reference point can all be located at the edge of the first sensing area. The third front reference point, the third rear reference point, the fourth front reference point, and the fourth rear reference point can all be located at the edge of the second sensing area.

[0012] According to some embodiments, a first laser sensing group may include first and second horizontal references protruding from a reference surface and at least partially located within a first sensing area, so that relevant reference points can be respectively defined on the collimated edges of the first or second horizontal references within the first sensing area. A second laser sensing group may include first and second vertical references protruding from a reference surface and at least partially located within a second sensing area, so that relevant reference points can be respectively defined on the collimated edges of the first or second vertical references within the second sensing area.

[0013] According to some embodiments, the multi-axial movable seat may include a first axial moving device, a horizontal axial moving device, a vertical axial moving device, a first rotating device, and a second rotating device. The first rotating device rotates along a vertical axis, and the second rotating device rotates along a horizontal axis. The main unit can be operated to obtain a vertical axis angular deviation based on the distance between a first front identification point and a first front reference point, and based on the distance between a first rear identification point and a first rear reference point, to correspondingly control the first rotating device. The main unit can also be operated to obtain a horizontal axis angular deviation based on the distance between a third front identification point and a third front reference point, and based on the distance between a third rear identification point and a third rear reference point, to correspondingly control the second rotating device.

[0014] According to some embodiments, when the host is used to execute an automatic alignment program, it can perform the following actions sequentially or conditionally: an initial step, an offset information acquisition step, an angle determination step, an offset determination step, an angle adjustment step, an offset adjustment step, and an alignment completion step.

[0015] Accordingly, by utilizing the configuration of the first and second laser sensing groups and the application of the front-end vertical frame of the existing motor testing platform, the shaft centering status of the motor under test can be effectively detected. Under the control of the movable base, automated centering can be achieved, further enabling automated centering on the production line. Simultaneously, it also solves the vibration problem caused by the misalignment between the two shafts, further extending the service life of the motor testing platform. [Attached Image Description]

[0016] Figure 1 A perspective view of a motor test platform with an automatic alignment system according to some embodiments; Figure 2 According to Figure 1 A front view of the front-end upright frame of the embodiment; Figure 3 This is a schematic diagram of the detection perspective on a horizontal plane for an automatic alignment system according to some embodiments; Figure 4 This is a schematic diagram of the detection perspective on a vertical plane for an automatic alignment system according to some embodiments; Figure 5 This is a schematic diagram of the detection perspective on a horizontal plane for an automatic alignment system according to another embodiment; Figure 6 This is a flowchart illustrating the automatic alignment system according to some embodiments during the execution of the alignment procedure.

Detailed Implementation Methods

[0017] To fully understand the purpose, features, and effects of the present invention, the present invention will now be described in detail with reference to the following specific embodiments and accompanying drawings:

[0018] In this application, the terms “a” or “an” are used to describe an element or feature. This is used for convenience only and to provide a general meaning for the scope of this document. Therefore, unless it is clearly intended otherwise, such a description should be understood to include one or at least one, and the singular includes the plural.

[0019] In this application, the terms “comprising,” “including,” “having,” or any other similar terms are not limited to the elements or features listed herein, but may include other parts not expressly listed but which are generally inherent to the elements or features.

[0020] In this application, the ordinal terms such as "first" or "second" are used to distinguish or refer to elements or features that are related to the same or similar elements or features, and do not necessarily imply a spatial order of such elements or features. It should be understood that in some cases or configurations, ordinal terms may be used interchangeably without affecting the embodiments disclosed herein or associated with them.

[0021] Please refer to Figure 1 This is a perspective view of a motor test platform with an automatic alignment system according to some embodiments. The motor test platform 200 includes a connecting shaft 210 extending from a first axis X and a front stand 220 disposed at the front end. The connecting shaft 210 is used to connect to the shaft 110 of the motor under test 100, for example, through a coupling. The front stand 220 has an opening 221 and a reference plane S1. The opening 221 is generally configured such that the centerline C of the connecting shaft 210 passes through the center of the opening 221 and is the normal vector of the reference plane S1.

[0022] The automatic alignment system of the motor test platform 200 includes: a main unit 300, a movable base 400, a first laser sensor group 510, and a second laser sensor group 520. The movable base 400 includes a clamping device 410 and a multi-axial movable seat 420. The clamping device 410 can be configured using quick-release devices such as fasteners or elastic clamps. The main unit 300 can control and / or receive corresponding data information from the motor test platform 200, the movable base 400, the first laser sensor group 510, and the second laser sensor group 520, typically through wired and / or wireless connections (not shown).

[0023] In some testing environments, the motor under test 100 is typically locked onto the reference surface S1, with its shaft 110 aligned with the center line C and connected to the connecting shaft 210. The host 300 then controls the motor testing platform 200 to execute the test program. In some embodiments of the present invention, the motor under test 100 is not locked onto the reference surface S1 of the front vertical frame 220, but is fixed to the movable base 400 by a clamping device 410. The host 300 obtains the first offset information and the second offset information of the shaft 110 through the first laser sensing group 510 and the second laser sensing group 520, and controls the multi-axial movable seat 420 of the movable base 400 based on this information to eliminate the degree of offset or deviation and achieve automated centering operation.

[0024] Next, please refer to the following: Figure 1 and Figure 2 , Figure 2 According to Figure 1A front view of the front-end support frame of the embodiment. The first laser sensing group 510 is disposed on the reference surface S1 of the front-end support frame 220, providing horizontal position detection for the axis 110 of the motor under test 100, which is clamped on the multi-axial movable seat 420 and in the detection position. The laser sensing group has laser light emitting ends (510a, 520a) and laser light receiving ends (510b, 520b), and the emitting and receiving ends can be interchanged. Due to the characteristics of laser collimation, the portion of the laser light that is blocked will appear on the receiving screen of the receiving end, thereby allowing for accurate estimation of the degree of offset or deviation based on this screen. The aforementioned detection position refers to the position of the axis 110 of the motor under test 100 being within the detection range of the first laser sensing group 510 and the second laser sensing group 520.

[0025] like Figure 2 As shown, the first laser sensing group 510 may include a first horizontal reference 511 and a second horizontal reference 512 protruding from the reference surface S1. The second laser sensing group 520 may include a first vertical reference 521 and a second vertical reference 522 protruding from the reference surface S1. In some other embodiments, these protruding references may be omitted; however, these protruding references can further improve accuracy and reliability.

[0026] Overall, the first laser sensing group 510 provides horizontal plane position detection for the axis 110, which is located on the horizontal axis Y and perpendicular to the first axis X. This configuration can be used to obtain the first offset information of the axis 110. The second laser sensing group 520 provides vertical plane position detection for the axis 110, which is located on the vertical axis Z and perpendicular to the first axis X. This configuration can be used to obtain the second offset information of the axis 110.

[0027] Next, please refer to the following: Figure 1 and Figure 3 , Figure 3 This is a schematic diagram of the detection perspective on a horizontal plane for an automatic alignment system according to some embodiments. The first sensing area SHR of the first laser sensing group 510 is defined on the aforementioned horizontal plane. When the shaft 110 of the motor under test 100 is in the detection position, the side edge of the shaft 110 can define a first front identification point y1f, a second front identification point y2f, a first rear identification point y1b, and a second rear identification point y2b located within the first sensing area SHR on this horizontal plane. This detection range of the first sensing area SHR can be seen in the received image displayed at the receiving end. Within this detection range, the first horizontal reference object 511 and the second horizontal reference object 512 will block the laser beam and appear as shadows in the received image, as will the shaft 110 located within the detection range. Therefore, various information can be obtained through this state. Among them, information can be obtained by… Figure 3The following spatial states are observed: the line connecting the first front identification point y1f and the second front identification point y2f is parallel to the horizontal axis Y, the line connecting the first rear identification point y1b and the second rear identification point y2b is parallel to the horizontal axis Y, and the line connecting the first front identification point y1f and the first rear identification point y1b is parallel to the first axis X.

[0028] The first offset information includes a first horizontal offset and a second horizontal offset. The first horizontal offset refers to the distance YF1 between the first front identification point y1f and the first front reference point y1fr, and the distance YF2 between the second front identification point y2f and the second front reference point y2fr, and the degree of difference between these two distances (YF1, YF2). When the difference between these two distances (YF1, YF2) is zero or less than a set threshold value, it means that the offset of the axis 110 in the first horizontal offset meets the requirements and no adjustment is needed. Otherwise, adjustment is required to make the difference between these two distances (YF1, YF2) zero or less than a set threshold value.

[0029] The second horizontal offset refers to the distance YB1 between the first rear identification point y1b and the first rear reference point y1br, and the distance YB2 between the second rear identification point y2b and the second rear reference point y2br, and the degree of difference between these two distances (YB1, YB2). When the difference between these two distances (YB1, YB2) is zero or less than a set threshold value, it means that the offset of the axis 110 in the second horizontal offset meets the requirements and no adjustment is needed. Otherwise, adjustment is required to make the difference between these two distances (YB1, YB2) zero or less than a set threshold value.

[0030] When the first horizontal offset and the second horizontal offset are not both zero or both are less than a set threshold value, the host 300 can know that the axis 110 has a tilt angle on the horizontal plane (horizontal plane) of the horizontal axis Y, and this tilt angle needs to be eliminated by rotation on the vertical axis Z.

[0031] Next, please refer to Figure 1 and Figure 4 , Figure 4This is a schematic diagram of the detection viewpoint on a vertical plane for an automatic alignment system according to some embodiments. The second sensing area SVR of the second laser sensing group 520 is defined on the aforementioned vertical plane. When the shaft 110 of the motor under test 100 is in the detection position, the side edge of the shaft 110 can define a third front identification point z3f, a fourth front identification point z4f, a third rear identification point z3b, and a fourth rear identification point z4b within the second sensing area SVR on this vertical plane. This detection range of the second sensing area SVR can be seen in the received image displayed at the receiving end. Within this detection range, the first vertical reference object 521 and the second vertical reference object 522 will block the laser beam and appear as shadows in the received image, as will the shaft 110 located within the detection range. Therefore, various information can be obtained through this state. Among them, information can be obtained by… Figure 4 The following spatial states are observed: the line connecting the third front identification point z3f and the fourth front identification point z4f is parallel to the vertical axis Z, the line connecting the third rear identification point z3b and the fourth rear identification point z4b is parallel to the vertical axis Z, and the line connecting the third front identification point z3f and the third rear identification point z3b is parallel to the first axis X.

[0032] The second offset information includes a first vertical offset and a second vertical offset. The first vertical offset refers to the distance ZF3 between the third front identification point z3f and the third front reference point z3fr, and the distance ZF4 between the fourth front identification point z4f and the fourth front reference point z4fr, and the degree of difference between these two distances (ZF3, ZF4). When the difference between these two distances (ZF3, ZF4) is zero or less than a set threshold value, it means that the offset of the axis 110 in the first vertical offset meets the requirements and no adjustment is needed. Otherwise, adjustment is required to make the difference between these two distances (ZF3, ZF4) zero or less than a set threshold value.

[0033] The second vertical offset refers to the distance ZB3 between the third rear identification point z3b and the third rear reference point z3br, and the distance ZB4 between the fourth rear identification point z4b and the fourth rear reference point z4br, and the degree of difference between these two distances (ZB3, ZB4). When the difference between these two distances (ZB3, ZB4) is zero or less than a set threshold value, it means that the offset of the axis 110 in the second vertical offset meets the requirements and no adjustment is needed. Otherwise, adjustment is required to make the difference between these two distances (ZB3, ZB4) zero or less than a set threshold value.

[0034] When the first vertical offset and the second vertical offset are not both zero or both are less than a set threshold value, the host 300 can know that the axis 110 has a tilt angle on the plane (vertical plane) of the vertical axis Z, and this tilt angle needs to be eliminated by rotation on the horizontal axis Y.

[0035] The tilt angle, whether on the horizontal plane (horizontal plane) or the vertical plane (vertical plane) on the horizontal axis Y, can be calculated based on the aforementioned distance information. Calculations based on trigonometric functions or other methods will not be elaborated upon here.

[0036] like Figure 3 As shown, each reference point (y1fr, y1br, y2fr, y2br) is defined on the collimation edge of the corresponding first horizontal reference 511 or second horizontal reference 512 within the first sensing area SHR. Figure 4 As shown, each reference point (z3fr, z3br, z4fr, z4br) is defined on the collimation edge of the corresponding first vertical reference 521 or second vertical reference 522 within the second sensing area SVR.

[0037] Next, please refer to Figure 5 This is a schematic diagram of the detection viewpoint on a horizontal plane for an automatic alignment system according to another embodiment. In this embodiment, instead of using individual protruding reference objects, the edges of the sensing areas of the laser sensing array (e.g., actual or virtual boundaries) are used directly. Figure 5 In this context, each reference point (y1fr, y1br, y2fr, y2br) is defined at the edge (actual boundary) of the sensing area itself of the first sensing area SHR. Similarly (not shown in the figure), each reference point (z3fr, z3br, z4fr, z4br) can also be defined at the edge of the sensing area itself of the second sensing area SVR. In some other embodiments, virtual boundaries can also be defined in the sensing areas, and the host 300 performs the corresponding calculations.

[0038] The multi-axial movable seat is configured to provide the motor 100 under test with adjustment capabilities in various directions. For example, the multi-axial movable seat may include a first axial moving device (moving along the first axis X), a horizontal axial moving device (moving along the horizontal axis Y), a vertical axial moving device (moving along the vertical axis Z), a first rotating device (rotating about the vertical axis Z), and a second rotating device (rotating about the horizontal axis Y).

[0039] When neither the first horizontal offset nor the second horizontal offset is zero or less than a set threshold value, the host 300 can obtain the vertical axis angle deviation (e.g., tilt angle) based on the distance YF1 between the first front identification point y1f and the first front reference point y1fr, and the distance YB1 between the first rear identification point y1b and the first rear reference point y1br, and accordingly control the first rotating device to rotate on the vertical axis Z to eliminate this tilt angle. Similarly, when neither the first vertical offset nor the second vertical offset is zero or less than a set threshold value, the host 300 can obtain the horizontal axis angle deviation (e.g., tilt angle) based on the distance ZF3 between the third front identification point z3f and the third front reference point z3fr, and the distance ZB3 between the third rear identification point z3b and the third rear reference point z3br, and accordingly control the second rotating device to rotate on the horizontal axis Y to eliminate this tilt angle.

[0040] Next, please refer to the following: Figure 1 and Figure 6 , Figure 6 This is a flowchart illustrating the automatic alignment system according to some embodiments during the execution of an alignment procedure. To achieve correct and efficient control during the execution of the automatic alignment procedure, the host computer may perform the following actions sequentially:

[0041] In the initial step S1, the host 300 controls the first axial movement device to position the shaft 110 of the motor under test 100 at the detection position.

[0042] In the offset information acquisition step S2, the host 300 acquires the first offset information of the axis 110 and the vertical axis angle deviation through the first laser sensing group 510, and acquires the second offset information of the axis 110 and the horizontal axis angle deviation through the second laser sensing group 520.

[0043] In angle determination step S3, when the vertical axis angle deviation and the horizontal axis angle deviation of the host 300 are both lower than or equal to a preset angle value, the host 300 enters offset determination step S4-1; otherwise, it enters angle adjustment step S4-2.

[0044] In offset determination step S4-1, the host 300 performs offset determination. When both the first offset information and the second offset information are lower than or equal to the threshold value, the host 300 enters the centering completion step S5-2. Otherwise, it enters the offset adjustment step S5-1.

[0045] In the angle adjustment step S4-2, the host 300 controls the first rotation device based on the vertical axis angle deviation and the second rotation device based on the horizontal axis angle deviation to reduce the deviation and return to the offset information acquisition step S2.

[0046] In offset adjustment step S5-1, the host 300 controls the horizontal axis moving device based on the first offset information and controls the vertical axis moving device based on the second offset information to reduce the offset amount and return to the offset information acquisition step S2.

[0047] After completing step S5-2, the host 300 controls the first axial movement device to move the motor under test 100 toward the motor test platform 200 so that the shaft 110 and the connecting shaft 210 can be connected.

[0048] The next step is to have the motor testing platform 200 perform various motor tests.

[0049] In summary, the automated alignment operation, based on the definitions of the first and second laser sensing groups and various reference points and identification points, can be completed accurately and efficiently, making it suitable for mass production online. Furthermore, the significant reduction in the deviation between the two axes further extends the service life of the motor testing platform.

[0050] Preferred embodiments have been disclosed above. However, those skilled in the art should understand that these embodiments are merely illustrative and should not be construed as limiting the scope of the invention. It should be noted that all equivalent variations and substitutions to the embodiments are to be understood as falling within the scope of this invention. Therefore, the scope of protection of this invention is determined by the scope of the claims. [Attached image labels]

[0051] 100 motors under test 110 axis 200 Motor Testing Platform 210 Connecting Shaft 220 Front-end vertical frame 221 Opening 300 host 400 active base 410 Clamping device 420 Multi-axial Movable Seat 510 First Laser Sensing Group 510a Laser Light Emitter 510b Laser Receiver 511 First-level reference 512 Second-level reference 520 Second Laser Sensor Group 520a Laser Light Emitter 520b Laser Receiver 521 First Vertical Reference Object 522 Second Vertical Reference C Centerline S1 reference plane SHR First Sensing Area SVR Second Sensing Area y1 f First front recognition point y1 fr First forward reference point y1 b First Rear Identification Point y1 br First reference point y2f Second front recognition point y2fr Second front reference point y2b second post-identification point y2br Second reference point YB1 Distance YB2 Distance YF1 Distance YF2 Distance z3f Third Front Recognition Point z3fr Third Front Reference Point z3b Third Rear Identification Point z3br Third reference point z4f Fourth Front Recognition Point z4fr Fourth Front Reference Point z4b fourth post-identification point z4br Fourth reference point ZB3 Distance ZB4 Distance ZF3 Distance ZF4 Distance X First axis Y-axis Z is the vertical axis.

Claims

1. An automatic alignment system for a motor testing platform, used to adjust the posture of a motor under test so that its shaft center is located in a concentric position, so that the motor testing platform can execute a test program after a connecting shaft extending from a first shaft is connected by the shaft center, the automatic alignment system comprising: One host computer; A movable base includes a clamping device and a multi-axial movable seat, wherein the clamping device is disposed on the multi-axial movable seat and is used to detachably clamp the motor under test; A first laser sensing group, disposed on a reference surface of a front-end vertical frame of the motor test platform, provides position detection on a horizontal plane for the shaft center at a detection position, so as to obtain a first offset information of the shaft center on the horizontal plane perpendicular to the first shaft; and A second laser sensing group, configured on the reference plane, provides position detection on a vertical plane for the axis center, and obtains a second offset information of the axis center on the vertical plane on a vertical axis perpendicular to the horizontal axis. The host is used to control the multi-axial movable seat to position the axis center at the center position based on the first offset information and the second offset information.

2. The automatic alignment system of claim 1, wherein, A first sensing area of ​​the first laser sensing group is defined on the horizontal plane. At the detection position, the side edge of the axis defines a first front identification point, a second front identification point, a first rear identification point, and a second rear identification point located within the first sensing area on the horizontal plane. The line connecting the first front identification point and the second front identification point is parallel to the horizontal axis, the line connecting the first rear identification point and the second rear identification point is parallel to the horizontal axis, and the line connecting the first front identification point and the first rear identification point is parallel to the first axis. A second sensing area of ​​the second laser sensing group is defined on the vertical plane. At the detection position, the side edge of the axis defines a third front identification point, a fourth front identification point, a third rear identification point, and a fourth rear identification point located within the second sensing area on the vertical plane. The line connecting the third front identification point and the fourth front identification point is parallel to the vertical axis, the line connecting the third rear identification point and the fourth rear identification point is parallel to the vertical axis, and the line connecting the third front identification point and the third rear identification point is parallel to the first axis.

3. The automatic alignment system of claim 2, wherein, The first offset information includes a first and a second horizontal offset. The first horizontal offset refers to the degree of difference between the distance between the first front identification point and a first front reference point in the first sensing area and the distance between the second front identification point and a second front reference point in the first sensing area. The second horizontal offset refers to the degree of difference between the distance between the first rear identification point and a first rear reference point in the first sensing area and the distance between the second rear identification point and a second rear reference point in the first sensing area. When the axis is located at the concentric position, both the first and second horizontal offsets are lower than or equal to a threshold value.

4. The automatic alignment system of claim 3, wherein, The second offset information includes a first and a second vertical offset. The first vertical offset refers to the degree of difference between the distance between the third front identification point and a third front reference point in the second sensing area and the distance between the fourth front identification point and a fourth front reference point in the second sensing area. The second vertical offset refers to the degree of difference between the distance between the third rear identification point and a third rear reference point in the second sensing area and the distance between the fourth rear identification point and a fourth rear reference point in the second sensing area. When the axis is located at the concentric position, both the first and second vertical offsets are lower than or equal to the threshold value.

5. The automatic alignment system of claim 4, wherein, The first front reference point, the first rear reference point, the second front reference point, and the second rear reference point are all located at the edge of the first sensing area, and the third front reference point, the third rear reference point, the fourth front reference point, and the fourth rear reference point are all located at the edge of the second sensing area.

6. The automatic alignment system of claim 4, wherein, The first laser sensing group includes a first and a second horizontal reference object protruding from the reference surface and at least partially located within the first sensing area. A first front reference point and a first rear reference point are defined on the collimated edge of the first horizontal reference object within the first sensing area. A second front reference point and a second rear reference point are defined on the collimated edge of the second horizontal reference object within the first sensing area. The second laser sensing group includes a first and a second vertical reference object protruding from the reference surface and at least partially located within the second sensing area. A third front reference point and a third rear reference point are defined on the collimated edge of the first vertical reference object within the second sensing area. A fourth front reference point and a fourth rear reference point are defined on the collimated edge of the second vertical reference object within the second sensing area.

7. The automatic alignment system of claim 5 or 6, wherein, The multi-axial movable seat includes a first axial moving device, a horizontal axial moving device, a vertical axial moving device, a first rotating device, and a second rotating device. The first rotating device rotates around the vertical axis, and the second rotating device rotates around the horizontal axis. The host computer obtains a vertical axis angle deviation based on the distance between the first front identification point and the first front reference point and the distance between the first rear identification point and the first rear reference point to control the first rotating device accordingly. The host computer obtains a horizontal axis angle deviation based on the distance between the third front identification point and the third front reference point and the distance between the third rear identification point and the third rear reference point to control the second rotating device accordingly.

8. The automatic alignment system of claim 7, wherein, When the host is used to execute an automatic alignment program, the following actions are performed in sequence: An initial step involves controlling the first axial movement device to position the shaft of the motor under test at the detection position. An offset information acquisition step involves acquiring the first offset information of the axis center and the vertical axis angle deviation through the first laser sensing group, and acquiring the second offset information of the axis center and the horizontal axis angle deviation through the second laser sensing group. An angle determination step is initiated when both the vertical axis angle deviation and the horizontal axis angle deviation are lower than or equal to a preset angle value; otherwise, an angle adjustment step is initiated. The offset determination step begins to enter a pair-completion step when both the first offset information and the second offset information are lower than or equal to the threshold value; otherwise, it enters an offset adjustment step. The angle adjustment step involves controlling the first rotating device based on the vertical axis angle deviation and controlling the second rotating device based on the horizontal axis angle deviation to reduce the deviation and return to the offset information acquisition step. The offset adjustment step involves controlling the horizontal axis moving device based on the first offset information and controlling the vertical axis moving device based on the second offset information to reduce the offset and then returning to the offset information acquisition step; and The alignment completion step involves controlling the first axial movement device to move the motor under test toward the motor test platform and align the shaft with the connecting shaft.

Images