Detection device of feedback unit and method for detecting concentricity of feedback unit

Abstract

The invention discloses a detection device of a feedback unit and a method for detecting the concentricity of the feedback unit. The detection device comprises a base; the focal length adjusting unit is arranged on the base, and the focal length adjusting unit comprises a supporting plate and a first moving mechanism movably installed on the supporting plate; the first moving mechanism moves along a first direction; the position adjusting unit is mounted on the first moving mechanism, and a second moving mechanism is arranged on the position adjusting unit; the second moving mechanism moves along a second direction; and the optical detection unit is installed on the second moving mechanism, and the optical detection unit is configured to be used for detecting the moving state of the feedback unit when the rotor of the rotating motor rotates.

Description

Technical Field

[0001] The present application belongs to the field of motor detection technology, and specifically relates to a detection device for a feedback unit and a method for detecting the concentricity of the feedback unit. Background Art

[0002] Direct-drive rotary motors can be mounted directly to the load, eliminating the need for mechanical transmission devices and significantly improving reliability. The absence of easily worn mechanical transmission components significantly reduces system maintenance workload, significantly increasing mean time between failures (MTBF). Furthermore, they optimize load acceleration, reduce power consumption, lower system inertia, and improve accuracy.

[0003] However, the operating accuracy of a rotating motor mainly depends on the concentricity between the feedback unit and the motor rotor. Currently, most rotating motor feedback units are integrated by the manufacturer. Even if the integrated accuracy is relatively high, it will deteriorate after being assembled with the motor rotor, which greatly limits the operating accuracy of the motor. For some high-precision applications, tooling is currently used to adjust and reduce the eccentricity of the feedback unit. However, because the tooling is a machined part, the accuracy that can be achieved is limited. At the same time, the hole accuracy of the feedback unit and the tooling is relatively low, which will also affect the accuracy of the motor and the production efficiency is also low. However, at this stage, there is no good feedback unit detection device to monitor the movement status of the feedback unit when the motor rotor is rotating, and it is impossible to adjust the places where the eccentricity of the rotating motor is poor. Summary of the Invention

[0004] Purpose of the invention: Therefore, it is necessary to provide a detection device for a feedback unit to monitor the movement state of the feedback unit when the motor rotor rotates, and adjust the eccentricity difference to effectively ensure the concentricity of the feedback unit and the motor rotor. A second purpose of this application is to provide a method for detecting the concentricity of the feedback unit with the above-mentioned feedback unit.

[0005] Technical solution: The detection device of the feedback unit described in the embodiment of the present application includes:

[0006] Applications in linear and rotary motors, including:

[0007] base;

[0008] A focus adjustment unit is provided on the base, the focus adjustment unit comprising a support plate and a first moving mechanism movably mounted on the support plate; the first moving mechanism moves along a first direction;

[0009] a position adjustment unit, the position adjustment unit being mounted on the first moving mechanism, the position adjustment unit being provided with a second moving mechanism; the second moving mechanism moving along a second direction;

[0010] An optical detection unit is mounted on the second moving mechanism, and is configured to detect a moving state of the feedback unit when the rotor of the rotary electric machine rotates.

[0011] In some embodiments, the first moving mechanism also includes a screw assembly and a first guide rail assembly mounted on the support plate, the position adjustment unit is movably mounted on the first guide rail assembly, and the screw assembly is configured to drive the position adjustment unit to move along the first direction on the first guide rail assembly.

[0012] In some embodiments, a limiting member is provided at both ends of the first guide rail assembly, and a buffer block is provided on a side of the limiting member close to the position adjustment unit.

[0013] In some embodiments, a self-locking assembly is provided on the screw assembly, and the self-locking assembly includes a handwheel, and the screw assembly is locked by the handwheel; the self-locking assembly is used to prevent the focal length adjustment unit from changing its position due to its own weight after reaching the specified position; the screw has a self-locking function, and a handwheel is provided at the upper end of the screw to facilitate the adjustment of the screw.

[0014] In some embodiments, the position adjustment unit includes a connecting plate, a fixed plate and a second movable mechanism installed on the fixed plate, the connecting plate is provided with multiple mounting positions, and the fixed plate is detachably mounted on the connecting plate through the mounting positions; the optical detection unit is installed on the second movable mechanism.

[0015] In some embodiments, the second moving mechanism includes a mounting seat and a second guide mechanism, the second guide mechanism is mounted on the fixed plate, the mounting seat is mounted on the second guide mechanism, and moves along the second direction under the drive of the second guide mechanism, the optical detection unit is detachably mounted on the mounting seat, and a fixing member is provided on the mounting seat, and the optical detection unit is fixed to the mounting seat through the fixing member.

[0016] In some embodiments, the optical detection unit includes a camera and a light source; the camera is mounted on the mounting seat, a light source connecting plate is provided on one side of the camera, and the light source is mounted on the light source connecting plate.

[0017] In some embodiments, an industrial computer and a display are further included. The industrial computer is electrically connected to the optical detection unit and the display respectively. The industrial computer is used to read the data from the camera in real time, process the data, and send it to the display.

[0018] Accordingly, the method for detecting the concentricity of the feedback unit described in the embodiment of the present application is applied to the detection device of the feedback unit of the rotating motor, and is characterized by comprising:

[0019] Step S1: Mount and fix the rotating motor to be adjusted on a base;

[0020] Step S2: adjusting the position of the position adjustment unit along the second direction to ensure that the outline of the feedback unit of the rotating motor falls within the optical detection area of ​​the optical detection unit;

[0021] Step S3: adjusting the relative position of the focus adjustment unit and the rotary motor along the first direction to ensure that the outline of the position feedback unit is clearly displayed on the display screen of the industrial computer;

[0022] Step S4: rotating the position feedback unit of the rotary motor and observing and adjusting the eccentricity of the movement until the concentricity meets the requirements;

[0023] Step S5: Fix the position of the feedback unit and re-rotate the rotating motor to check whether the concentricity meets the requirements.

[0024] In some embodiments, step S2 further includes:

[0025] The step S2 further includes:

[0026] Step S21: the second moving mechanism adjusts the position of the optical detection unit on the connecting plate along the second direction, and observes through the optical detection unit to ensure that the outline of the motor feedback unit is observed;

[0027] Step S22: After the position of the optical detection unit is adjusted, the fixing piece is locked to fix the position of the optical detection unit on the connecting plate.

[0028] Beneficial effects:

[0029] Compared with the existing technology, the detection device of the automatically adjustable feedback unit can avoid the problem of poor concentricity between the feedback unit and the motor rotor due to the integrated feedback unit or tooling adjustment, effectively improve the operation accuracy of the motor, and at the same time improve production efficiency.

[0030] Compared with existing technologies, the detection device can use a screw assembly to avoid the problems caused by the mechanical rolling bearing structure, such as high friction, poor vibration resistance, unstable movement, poor precision, and short life. At the same time, it can also prevent the motor temperature from being too high and affecting the operating accuracy of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the main structure of the detection device of the feedback unit provided in an embodiment of the present application.

[0033] Reference numerals:

[0034] 1. Base;

[0035] 2. Focus adjustment unit; 21. Support plate; 22. First guide rail assembly; 23. Stopper; 24. Fixed side; 25. Support side; 26. Connecting plate; 27. Screw assembly;

[0036] 3. Position adjustment unit; 31. Mounting seat; 32. Fixing plate; 33. Second guide mechanism; 34. Mounting member; 35. Mounting plate; 351. Fixing member;

[0037] 4. Optical detection unit; 41. Camera; 42. Light source mounting plate; 43. Lens; 44. Light source; 45. Installation area. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0039] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined. In the description of this application, "vertical" means completely vertical at 90° or almost completely vertical, for example, an angle within the range of 80° to 100° is considered vertical. Similarly, "parallel" means completely parallel or almost completely parallel, for example, an angle within 10° of completely parallel is considered parallel.

[0040] It should also be noted that in the description of this application, the first direction corresponds to the attached Figure 1 The Z axis of the coordinate system, the second direction corresponds to the Figure 1 The X-axis of the central coordinate system, the third direction corresponds to the Y-axis of the coordinate system in the accompanying drawing, the first direction and the second direction are perpendicular to each other, and both are perpendicular to the Y-axis. The first direction, the second direction and the moving direction are defined to facilitate the explanation of the relative position relationship of the various components of the detection device of the feedback unit of the embodiment of the present application, and thus facilitate the understanding of the structure of the detection device of the feedback unit.

[0041] The applicant noted that existing rotating motors generally use sliding structures or rolling structures to guide the moving device, but these two guiding structures are prone to wear, resulting in defects such as unstable movement, reduced accuracy, and shortened life of the rotating motor.

[0042] In view of this, it is necessary to provide a detection device for the feedback unit to monitor the movement state of the feedback unit when the motor rotor rotates, and adjust the eccentricity difference to effectively ensure the concentricity of the feedback unit and the motor rotor.

[0043] Please also refer to Figure 1 , FIG illustrates the main structure of the rotating motor provided by the first embodiment of the present application, FIG illustrates the detection device of the feedback unit provided by the first embodiment of the present application. Base 1;

[0044] The focus adjustment unit 2 is provided on the base 1, and the focus adjustment unit 2 includes a support plate 21 and a first moving mechanism movably mounted on the support plate 21; the first moving mechanism moves along a first direction;

[0045] The position adjustment unit 3 is mounted on the first moving mechanism, and a second moving mechanism is provided on the position adjustment unit 3; the second moving mechanism moves along the second direction;

[0046] The optical detection unit 4 is mounted on the second moving mechanism and is configured to detect a moving state of the feedback unit when the rotor of the rotary electric machine rotates.

[0047] In the first embodiment of the present application, the detection device of the feedback unit includes a base 1, a focus adjustment unit 2, an optical detection unit 4 and a position adjustment unit 3. Among them, the base 1 is a bearing component in the detection device of the feedback unit, which is used to carry the optical detection unit 4 so that the optical detection unit 4 can move thereon, and the base 1 is provided with a focus adjustment unit 2, which is used to drive the optical detection unit 4 to move in a first direction so that the focus adjustment unit 2 can move relative to the base 1 along the first direction of movement (i.e., the Z direction). Accordingly, the focus adjustment unit 2 is movably arranged on the base 1, and the focus adjustment unit 2 includes a support plate 21 and a first moving mechanism movably mounted on the support plate 21. The first moving mechanism guides the position adjustment unit 3 mounted on the first moving mechanism in the first direction (z direction), thereby realizing high-precision position adjustment of the detection device of the feedback unit in the first direction (z direction). Among them, the first moving mechanism can adopt a screw assembly 27, a screw assembly 27 or other driving methods. Specifically, the screw assembly 27 is arranged on the support plate 21, and the screw assembly 27 uses electricity converted into power to drive the screw to move along the first direction to drive the position adjustment unit 3 installed on the screw assembly 27 to move along the first direction.

[0048] The screw assembly 27 of the present application has higher precision, better use environment, lower noise, faster speed, but is also more expensive, and is generally used for precision positioning.

[0049] In another embodiment, the first moving mechanism can adopt a linear motor, a linear motor or other driving methods. Specifically, the linear motor is arranged on the support plate 21, and the linear motor converts electricity into power to drive the screw assembly 27 to move along the first direction to drive the position adjustment unit 3 installed on the screw assembly 27 to move along the first direction.

[0050] The screw assembly 27 includes a fixed side 24 and a support side 25; the fixed side 24 and the support side 25 are respectively installed on the two ends of the first direction of the support plate 21, and the screw is installed and fixed between the fixed side 24 and the support side 25.

[0051] A linear motor is mounted on support plate 21. It converts electricity into power to drive lead screw assembly 27 in a first direction, thereby driving position adjustment unit 3 mounted on the lead screw in the first direction. There is no mechanical contact between the linear motor and support plate 21; the transmission force is generated in the air gap. Apart from the linear motor guide rail, there is no friction anywhere else. Therefore, the device generates virtually no heat and viscosity changes during movement, eliminating the need for additional cooling measures.

[0052] The linear motor has high precision and repeatability because the intermediate links that affect the precision are eliminated, ensuring the adjustment accuracy in the first direction. At the same time, the running stroke is theoretically not restricted, and its performance will not be affected by changes in the size of its stroke.

[0053] Position adjustment unit 3 is mounted on a first movable mechanism, which is equipped with a second movable mechanism. The second movable mechanism moves along a second direction. After the first movable mechanism is moved to a certain height and fixed, the second movable mechanism moves along the second direction, allowing the optical detection unit 4 mounted on the second movable mechanism to adjust its position along the second direction (i.e., the X direction). This ensures that the outline of the feedback unit of the rotating motor falls within the optical detection area, ensuring that the optical detection unit 4 can observe the outline of the feedback unit.

[0054] The second moving mechanism can be a linear cylinder, a linear motor, a screw assembly 27, or other drive methods. Specifically, the linear motor is installed on the first moving mechanism. The linear motor converts electricity into power to drive the screw assembly 27 to move along the second direction, thereby driving the optical detection unit 4 mounted on the screw assembly 27 to move along the second direction. There is no mechanical contact between the linear motor drive and the support plate 21. The transmission force is generated in the air gap. There is no other friction position except the linear motor guide rail. During movement, the device generates almost no heat and no viscosity changes, and no cooling measures are required.

[0055] In another embodiment, the second moving mechanism utilizes a linear motor. This eliminates the need for a fixing member 351, i.e., a locking nut, simplifying the structure. Furthermore, a position feedback device is added to the support base in the direction of movement, enabling more precise adjustment of the position of the position adjustment unit 3 in the second direction. The position feedback device transmits data to an industrial computer, which then performs position adjustment.

[0056] The above can realize automated detection and improve production efficiency

[0057] The optical detection unit 4 is configured to detect a movement state of the feedback unit when the rotor of the rotary electric machine rotates.

[0058] The present invention solves the problems that there is currently no good feedback unit detection device to monitor the movement state of the feedback unit when the motor rotor rotates, and it is impossible to adjust the eccentricity difference of the rotating motor, etc. through a fully automatic and adjustable feedback unit detection device. The first moving mechanism and the second moving mechanism enable the feedback unit detection device to adjust the position at multiple angles, so that the contour of the feedback unit of the rotating motor can better fall into the optical detection area, thereby enabling the feedback unit detection device to more accurately monitor the movement state of the feedback unit when the motor rotor rotates and adjust the eccentricity difference.

[0059] The linear motor and lead screw structure ensures that the device generates virtually no heat or viscosity changes during position adjustment, eliminating the need for cooling measures. This avoids the high friction, poor vibration resistance, unstable movement, poor precision, and reduced lifespan associated with mechanical rolling bearings. It also prevents excessive motor temperature from affecting product accuracy.

[0060] At the same time, automatic adjustment improves the position adjustment rate of the detection device of the feedback unit, while reducing accuracy errors caused by non-essential factors such as manual adjustment, resulting in higher accuracy, faster adjustment speed, and reduced labor cost investment.

[0061] In the first embodiment,

[0062] Further, please combine Figure 1 The first moving mechanism further includes a screw assembly 27 mounted on the support plate 21 and a first guide rail assembly 22. The position adjustment unit 3 is movably mounted on the first guide rail assembly 22. The screw assembly 27 is configured to drive the position adjustment unit 3 to move along the first guide rail assembly 22 in a first direction. In this embodiment, the screw assembly 27 is used. Alternatively, other drive and guide structures may be used. Using the screw assembly 27 provides low friction loss, high transmission efficiency, and high precision.

[0063] The first guide rail assembly 22 is included, and the position adjustment unit 3 is movably mounted on the first guide rail assembly 22 via a slider. Driven by the lead screw assembly 27, the position adjustment unit 3 moves along a first direction via the slider. In this embodiment, the first guide rail assembly 22 serves as a guide slot, and the position adjustment unit 3 is provided with a slider that matches the guide slot. This guide rail guidance prevents the position adjustment unit 3 from drifting during movement, thereby improving the accuracy of fine-tuning the position of the feedback unit's detection device in the first direction.

[0064] In another embodiment, the first guide rail assembly 22 is a slider, and the adjustment unit is provided with a guide groove adapted to the slider.

[0065] In this embodiment, a limiting member 23 is provided at both ends of the first guide rail assembly 22 , and a buffer block is provided on one side of the limiting member 23 close to the position adjustment unit 3 .

[0066] There are two limit members 23 in this embodiment, which are respectively installed at the two end positions of the support plate 21 along the first direction. The limit members 23 are detachably installed on the support plate 21, and the screw assembly 27 is passed through the limit members 23. The limit members 23 are used to limit the moving range of its position adjustment unit 3 in the focal length adjustment unit 2, and are used for the stroke and limit protection of the detection device of the feedback unit.

[0067] A buffer block is provided on the side of the limiter 23 close to the position adjustment unit 3. The buffer block can be made of soft materials such as sponge pads, rubber blocks, silicone blocks, etc. that can play a buffering and protective role. The buffer block is used to prevent the position adjustment unit 3 from generating friction with the limit block or the upper and lower ends of the screw during movement. It also plays a protective role. In unexpected situations, it serves as a buffer protection for the detection device of the feedback unit.

[0068] Furthermore, a self-locking assembly is provided on the screw assembly 27, and the self-locking assembly includes a handwheel, which is used to lock the screw assembly 27. The self-locking assembly in the present application can adopt a self-locking mechanism such as a trapezoidal screw, a ratchet, a cam, etc., which can be locked by a handwheel, so that the position adjustment unit 3 can be stably fixed on the screw, avoiding power failure or other unexpected problems such as the position adjustment unit 3.

[0069] Furthermore, the position adjustment unit 3 includes a connecting plate 26, a fixed plate 32, and a second movable mechanism mounted on the fixed plate 32. The connecting plate 26 is provided with multiple mounting locations, through which the fixed plate 32 is detachably mounted to the connecting plate 26. The optical detection unit 4 is mounted on the second movable mechanism. The connecting plate 26 is mounted on the first movable mechanism and moves up and down along the first direction (z-direction) driven by the first movable mechanism. The connecting plate 26 is provided with multiple mounting locations along the third direction (i.e., x-direction), each of which can be mounted on the fixed plate 32. The fixed plate 32 is detachably connected to the connecting plate 26, and the mounting locations enable the feedback unit's detection device to be adjusted in the third direction (i.e., x-direction).

[0070] The connection between the mounting position and the fixing plate 32 can be achieved by detachable connection means such as threaded connection or screws.

[0071] In addition, in another embodiment, a third moving mechanism is mounted on the connecting plate 26, and the fixed plate 32 is mounted on the third moving mechanism. Driven by the third moving mechanism, the fixed plate 32 moves along the third direction (x direction) of the connecting plate 26, thereby adjusting the position of the detection device of the feedback unit in the third direction (i.e., x direction) through its mounting position. This embodiment can use a linear motor.

[0072] Furthermore, the second moving mechanism includes a mounting seat 31 and a second guide mechanism 33. The second guide mechanism 33 is installed on the fixed plate 32. The mounting seat 31 is installed on the second guide mechanism 33 and moves along the second direction under the drive of the second guide mechanism 33. The optical detection unit 4 is detachably installed on the mounting seat 31. A fixing member 351 is provided on the mounting seat 31, and the optical detection unit 4 is fixed to the mounting seat 31 through the fixing member 351.

[0073] Combine Figure 1 As shown, the second guide mechanism 33 in this embodiment includes a guide rod and a mounting member 34 for fixing the guide rod on the fixed plate 32, the mounting member 34 is arranged at both ends of the fixed plate 32 along the second direction, wherein the guide rod is passed through the mounting member 34, and the mounting seat 31 installed on the guide rod can be moved along the second direction through the guide rod.

[0074] The second moving mechanism also includes a driver. In this embodiment, the driver uses a linear bearing, which is used to guide the position adjustment unit 3 during movement. The mounting plate 35 is fixed to the linear bearing and is provided with a fixing member 351 to ensure that the position is not displaced after the position is adjusted.

[0075] In this alternative embodiment, the second guide mechanism 33 is a screw structure. The screw assembly 27 exhibits low friction loss, high transmission efficiency, and high precision. A mounting base 31 is removably mounted on the screw assembly 27, and an optical detection unit 4 is removably mounted on the mounting base 31. The optical detection unit 4 is then secured to the mounting base 31 via a fixing member 351, which is threadedly connected to the mounting base 31.

[0076] The mounting seat 31 in this embodiment includes a mounting area 45 and a fixing area. The mounting area 45 is used to connect with the connection part for installing the optical detection unit 4. The fixing area is provided with a fixing hole, and the fixing hole is connected to the fixing piece 351, so that the fixing seat is fixed on the fixing plate 32, thereby fixing the optical detection unit 4 on the fixing plate 32, completing the position adjustment of the detection device of the feedback unit in the second direction.

[0077] Furthermore, the optical detection unit 4 includes a camera 41 and a light source 44 ; the camera 41 is mounted on the mounting base 31 , a light source 44 connecting plate 26 is provided on one side of the camera 41 , and the light source 44 is mounted on the light source 44 connecting plate 26 .

[0078] The optical detection unit 4 includes a camera 41, a lens 43, and a light source 44. The camera 41 is mounted and fixed to the fixed plate 32 of the position adjustment unit 3 via a mounting base 31. The lens 43 is locked together with the camera 41. A light source mounting plate 42 is provided on the mounting base 31, and a light source 44 is mounted and fixed on the light source mounting plate 42. The light source 44 is used to emit light so that the camera 41 can capture the movement of the feedback unit when the motor rotor rotates, thereby adjusting the eccentricity difference of the rotating motor to effectively ensure the concentricity of the feedback unit and the motor rotor.

[0079] Furthermore, it also includes an industrial computer and a display. The industrial computer is electrically connected to the optical detection unit 4 and the display respectively. The industrial computer is used to read the data from the camera 41 in real time, process the data and send it to the display. The industrial computer is used to read the data from the camera 41 in real time and display it on the display screen, so as to adjust the position deviation of the feedback unit.

[0080] In the first embodiment, the rotating motor to be adjusted is mounted and fixed on the base 11 ; the position adjustment unit 3 is adjusted along the second direction by the second moving mechanism to ensure that the feedback unit contour of the rotating motor falls within the optical detection area.

[0081] Specifically, along the second direction, the relative position of the optical detection unit 4 on the fixed plate 32 is adjusted by the second moving mechanism, and then observation is performed through the optical detection unit 4 to ensure that the outline of the feedback unit can be observed; after the position is adjusted, the fixing piece 351 is locked to fix the position of the position adjustment unit 3. This embodiment uses a locking nut.

[0082] The first moving mechanism then adjusts the relative position of focus adjustment unit 2 along the first direction, thereby enabling camera 41 to achieve better focus and ensuring that the outline of the position feedback unit is clearly displayed on the industrial computer's display. The position feedback unit on the rotary motor is rotated and the eccentricity of the movement is adjusted by observing it on the display until the concentricity meets the requirements. The position of the feedback unit on the rotary motor is fixed, and the rotary motor is rotated again to check whether the concentricity meets the requirements.

[0083] In order to solve the problem of how to detect the deviation of the concentricity between the detection unit of the rotating electric machine and the rotating electric machine.

[0084] The present application provides a method for detecting the concentricity between a feedback unit of a rotating electric machine and a rotor, which is applied to a detection device for the feedback unit of the rotating electric machine and is characterized by comprising:

[0085] Step S1: The rotating motor to be adjusted is mounted and fixed on the base 1;

[0086] Step S2: Adjust the position adjustment unit 3 to ensure that the contour of the feedback unit of the rotating motor falls within the optical detection area of ​​the optical detection unit 4.

[0087] Step S3: Adjust the relative position of the focus adjustment unit 2 and the rotary motor to ensure that the outline of the position feedback unit is clearly displayed on the display screen of the industrial computer.

[0088] Step S4: Rotate the position feedback unit of the rotary motor and observe and adjust the eccentricity of the movement until the concentricity meets the requirements.

[0089] Step S5: Fix the position of the feedback unit and re-rotate the rotary motor to check whether the concentricity meets the requirements.

[0090] Further: Step S2 further includes:

[0091] Step S21: the second guide mechanism 33 adjusts the position of the optical detection unit 4 on the connecting plate 26 along the second direction, and observes through the optical detection unit 4 to ensure that the outline of the motor feedback unit can be observed;

[0092] Step S22 : After the position of the optical detection unit 4 is adjusted, the fixing member 351 is locked to fix the position of the optical detection unit 4 on the connecting plate 26 .

[0093] The industrial computer is used to read the data of the camera 41 in real time and display it on the display screen, so as to adjust the position deviation of the feedback unit.

[0094] Specifically: first, in the second direction, the relative position of the optical detection unit 4 on the fixed plate 32 is adjusted by the second moving mechanism, and then observation is performed through the optical detection unit 4 to ensure that the outline of the feedback unit can be observed; after the position is adjusted, the fixing part 351 is locked to fix the position of the position adjustment unit 3. This embodiment uses a locking nut.

[0095] Next, the first moving mechanism adjusts the relative position of the focus adjustment unit 2 along the first direction, thereby enabling better focus of the camera 41 and ensuring that the outline of the position feedback unit is clearly displayed on the industrial computer's display. The position feedback unit on the rotary motor is rotated and the eccentricity of the movement is adjusted by observing it on the display until the concentricity meets the requirements. The position of the feedback unit on the rotary motor is fixed, and the rotary motor is rotated again to check whether the concentricity meets the requirements.

[0096] The above is a detailed introduction to the embodiments of the present application, and specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application; ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A detection device for a feedback unit, characterized in that: Applications in linear and rotary motors, including: base; A focus adjustment unit is provided on the base, the focus adjustment unit comprising a support plate and a first moving mechanism movably mounted on the support plate; the first moving mechanism moves along a first direction; a position adjustment unit, the position adjustment unit being mounted on the first moving mechanism, the position adjustment unit being provided with a second moving mechanism; the second moving mechanism moving along a second direction; An optical detection unit is mounted on the second moving mechanism, and is configured to detect a moving state of the feedback unit when the rotor of the rotary electric machine rotates.

2. The detection device of the feedback unit according to claim 1, characterized in that: The first moving mechanism also includes a screw assembly and a first guide rail assembly mounted on the support plate, the position adjustment unit is movably mounted on the first guide rail assembly, and the screw assembly is configured to drive the position adjustment unit to move on the first guide rail assembly along a first direction.

3. The detection device of the feedback unit according to claim 2, characterized in that: Both ends of the first guide rail assembly are provided with a limiting member, and a buffer block is provided on a side of the limiting member close to the position adjustment unit.

4. The detection device of the feedback unit according to claim 2, characterized in that: The screw assembly is provided with a self-locking assembly, which includes a handwheel, and the screw assembly is locked by the handwheel; the self-locking assembly is used to prevent the focus adjustment unit from changing its position due to its own weight after reaching the specified position; the screw has a self-locking function, and a handwheel is provided at the upper end of the screw to facilitate the adjustment of the screw.

5. The detection device of the feedback unit according to claim 1, characterized in that: The position adjustment unit includes a connecting plate, a fixed plate and a second movable mechanism installed on the fixed plate. The connecting plate is provided with multiple mounting positions, and the fixed plate is detachably mounted on the connecting plate through the mounting positions; the optical detection unit is installed on the second movable mechanism.

6. The detection device of the feedback unit according to claim 5, characterized in that: The second moving mechanism includes a mounting seat and a second guide mechanism, the second guide mechanism is mounted on the fixed plate, the mounting seat is mounted on the second guide mechanism, and moves along the second direction under the drive of the second guide mechanism, the optical detection unit is detachably mounted on the mounting seat, and a fixing part is provided on the mounting seat, and the optical detection unit is fixed to the mounting seat through the fixing part.

7. The detection device of the feedback unit according to claim 6, characterized in that: The optical detection unit includes a camera and a light source; the camera is mounted on the mounting seat, a light source connecting plate is provided on one side of the camera, and the light source is mounted on the light source connecting plate.

8. The detection device of the feedback unit according to any one of claim 1, characterized in that: It also includes an industrial computer and a display. The industrial computer is electrically connected to the optical detection unit and the display respectively. The industrial computer is used to read the data from the camera in real time, process the data and send it to the display.

9. A method for detecting concentricity of a feedback unit, applied to a detection device of a rotating motor feedback unit, characterized in that: include: Step S1: Mount and fix the rotating motor to be adjusted on a base; Step S2: adjusting the position of the position adjustment unit along the second direction to ensure that the outline of the feedback unit of the rotating motor falls within the optical detection area of ​​the optical detection unit; Step S3: adjusting the relative position of the focus adjustment unit and the rotary motor along the first direction to ensure that the outline of the position feedback unit is clearly displayed on the display screen of the industrial computer; Step S4: rotating the position feedback unit of the rotary motor and observing and adjusting the eccentricity of the movement until the concentricity meets the requirements; Step S5: Fix the position of the feedback unit and re-rotate the rotating motor to check whether the concentricity meets the requirements.

10. The method for detecting the feedback unit and concentricity according to claim 9, characterized in that: The step S2 further includes: Step S21: the second moving mechanism adjusts the position of the optical detection unit on the connecting plate along the second direction, and observes through the optical detection unit to ensure that the outline of the motor feedback unit is observed; Step S22: After the position of the optical detection unit is adjusted, the fixing piece is locked to fix the position of the optical detection unit on the connecting plate.

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