Stator inner diameter detection mechanism

Abstract

The application provides a stator inner diameter detection mechanism, which comprises a support base, an inner diameter measuring instrument and a measuring instrument driving part. The support base is circumferentially provided with a plurality of movable clamping arms, each clamping arm is realized synchronous opening and closing movement through a linkage mechanism, when the clamping arms are closed, the outer ring surface of the stator can be stably clamped, and the positioning accuracy of the measured workpiece in the detection process is ensured. The inner diameter measuring instrument selects an existing contact type inner diameter measuring instrument, which can accurately collect the diameter size data of the stator inner ring. The measuring instrument driving part adopts a linear module structure driven by a servo motor, the inner diameter measuring instrument is fixed on the moving platform of the measuring instrument driving part through a rigid connecting piece, the measuring instrument driving part can control the inner diameter measuring instrument to make reciprocating linear motion along the axial direction of the stator inner ring, and realize that the measuring probe automatically extends into the stator inner ring for detection or withdraws from the inner ring for resetting.

Description

Technical Field

[0001] This application belongs to the technical field of stator inner diameter testing mechanism, and more specifically, relates to a stator inner diameter testing mechanism. Background Technology

[0002] In the field of motor manufacturing, the stator, as one of the core components, directly affects the assembly quality and operational performance of the motor due to the accuracy of its inner diameter. Traditional testing methods mainly rely on manual contact measurements using calipers or dial indicators, which is not only inefficient but also easily affected by the operator's subjective factors, resulting in poor consistency of measurement results. Utility Model Content

[0003] The purpose of this application is to provide a stator inner diameter detection mechanism to solve the technical problems of low efficiency and poor consistency of measurement results in manual measurement of stator inner diameter in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] A stator inner diameter detection mechanism is provided, including...

[0006] The support base includes multiple movable clamping arms, each clamping arm being arranged along the circumference of the stator, and when the clamping arms are closed together, they can clamp the outer ring of the stator.

[0007] An inner diameter measuring instrument is used to measure the inner diameter of the stator inner ring.

[0008] A measuring instrument drive is provided, wherein the inner diameter measuring instrument is mounted on the measuring instrument drive, and the measuring instrument drive is used to drive the inner diameter measuring instrument to move axially along the inner ring of the stator so as to extend into or move out of the inner ring of the stator.

[0009] As a further improvement to the above technical solution:

[0010] Optionally, the support base includes a clamping arm drive, and each clamping arm is driven to be connected to the clamping arm drive. The clamping arm drive is used to drive each clamping arm to close or move away from each other.

[0011] Optionally, the clamping arm drive is provided with a guide rail extending radially along the stator, and each clamping arm is slidably connected to the guide rail.

[0012] Optionally, the support base includes a support plate, a column, and a base. The support plate is connected to one end of the column, and the base is connected to the other end of the column. The clamping arm drive is disposed in the space between the support plate and the base. The support plate is also provided with a clearance groove for avoiding the clamping arm.

[0013] Optionally, the support base includes a plurality of support columns disposed on the support plate and arranged sequentially along the circumference of the stator, and the lower support step of the stator is supported on the support columns.

[0014] Optionally, the support base includes a plurality of positioning posts disposed on the support plate and arranged sequentially along the circumference of the stator, wherein the positioning posts are limited and engaged with the outer ring surface of the stator.

[0015] Optionally, the positioning post has a protrusion on the side facing the stator, and the protrusion engages with a groove on the outer ring surface of the stator.

[0016] Optionally, the support base further includes a rotary drive component, the base being driven to the rotary drive component, the rotary drive component being used to drive the base to rotate about the axial direction of the stator.

[0017] Optionally, it also includes a base drive member, on which the support base is mounted, and the base drive member is used to drive the support base to move radially along the stator.

[0018] Optionally, the axial direction of the stator is parallel to the vertical direction, and the measuring instrument drive is used to drive the inner diameter measuring instrument to move up and down in the vertical direction to extend into or move out of the inner ring of the stator.

[0019] The beneficial effects of the stator inner diameter detection mechanism provided in this application are as follows:

[0020] The stator inner diameter measuring mechanism provided in this application includes a support base, an inner diameter measuring instrument, and a measuring instrument drive. The support base has multiple movable clamping arms arranged circumferentially. Each clamping arm opens and closes synchronously via a linkage mechanism. When the clamping arms are closed, they can stably clamp the outer ring surface of the stator, ensuring the positioning accuracy of the workpiece during the testing process. The inner diameter measuring instrument uses an existing contact-type inner diameter measuring instrument, which can accurately collect the diameter data of the stator inner ring. The measuring instrument drive adopts a servo motor-driven linear module structure. The inner diameter measuring instrument is fixed to the moving platform of the measuring instrument drive via a rigid connector. The measuring instrument drive can control the inner diameter measuring instrument to reciprocate linearly along the axial direction of the stator inner ring, enabling the measuring probe to automatically extend into the stator inner ring for testing or withdraw and reset.

[0021] The stator inner diameter testing mechanism of this application realizes the automated measurement of stator inner diameter through an inner diameter measuring instrument and a measuring instrument drive, which can improve the testing efficiency and the consistency of measurement results, while having good operational stability and measurement repeatability. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A three-dimensional structural diagram of the stator inner diameter detection mechanism provided in this application in its first working state;

[0024] Figure 2 A side view of the stator inner diameter detection mechanism provided in this application in its first working state;

[0025] Figure 3 A three-dimensional structural diagram of the stator inner diameter detection mechanism provided in this application in its second working state;

[0026] Figure 4 This is a partially enlarged structural schematic diagram of the stator inner diameter detection mechanism provided in this application;

[0027] Figure 5 A three-dimensional structural diagram of the stator provided in this application.

[0028] The following are the labeling elements in the figure:

[0029] 1. Support base; 11. Clamping arm;

[0030] 12. Clamping arm drive unit; 13. Support plate;

[0031] 14. Column; 15. Base;

[0032] 16. Support column; 17. Positioning column;

[0033] 171. Protrusion; 2. Stator;

[0034] 21. Lower support step; 22. Positioning groove;

[0035] 3. Internal diameter measuring instrument; 4. Measuring instrument drive components;

[0036] 5. Rotation drive component; 6. Base drive component. Detailed Implementation

[0037] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0038] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0039] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0041] To address the technical problems of low efficiency and poor consistency of measurement results in manual measurement of stator inner diameter in existing technologies, such as... Figures 1 to 3 As shown, this application provides a stator inner diameter detection mechanism, which includes a support base 1, an inner diameter measuring instrument 3, and a measuring instrument drive component 4.

[0042] like Figure 4 As shown, the support base 1 has multiple movable clamping arms 11 arranged circumferentially. Each clamping arm 11 opens and closes synchronously through a linkage mechanism. When the clamping arms 11 are closed, they can stably clamp the outer ring surface of the stator 2, ensuring the positioning accuracy of the workpiece being tested during the inspection process. The inner diameter measuring instrument 3 uses an existing contact-type inner diameter measuring instrument, which can accurately collect the diameter data of the inner ring of the stator 2. The measuring instrument drive 4 adopts a linear module structure driven by a servo motor. The inner diameter measuring instrument 3 is fixed to the moving platform of the measuring instrument drive 4 through a rigid connecting piece. The measuring instrument drive 4 can control the inner diameter measuring instrument 3 to reciprocate linearly along the axial direction of the inner ring of the stator 2, so that the measuring probe can automatically extend into the inner ring of the stator 2 for inspection or withdraw from the inner ring for reset.

[0043] The stator inner diameter testing mechanism of this application realizes the automated measurement of the stator inner diameter through the inner diameter measuring instrument 3 and the measuring instrument drive 4, which can improve the testing efficiency and the consistency of the measurement results, while having good operational stability and measurement repeatability.

[0044] like Figure 4As shown, in a specific embodiment of this application, the support base 1 is further provided with a clamping arm drive 12, which is mechanically linked to each clamping arm 11 through a transmission mechanism. The clamping arm drive 12 uses an electric push rod or a cylinder as a power source, and its output end is connected to a synchronous linkage mechanism to ensure that multiple clamping arms 11 can simultaneously perform radial closing or disengaging movements. When the clamping arm drive 12 is started, linear motion is converted into radial motion of the clamping arms 11, enabling each clamping arm 11 to synchronously clamp the outer ring surface of the stator 2 or release the workpiece being measured. The control system of the clamping arm drive 12 can be linked with the measuring instrument drive 4 to form a complete automated detection process.

[0045] like Figure 4 As shown, in one specific embodiment of this application, the clamping arm drive member 12 is provided with a linear guide rail extending radially along the stator 2. Each clamping arm 11 forms a sliding fit with the guide rail to ensure the motion accuracy and smoothness of the clamping arm 11 during radial movement. The guide rail provides rigid guidance for the motion trajectory of the clamping arm 11, and the extension direction of the guide rail is strictly aligned with the radial direction of the stator 2 to ensure that the motion axis of each clamping arm 11 passes through the center point of the stator 2.

[0046] like Figure 4 As shown, in one specific embodiment of this application, the support base 1 includes a support plate 13, a column 14, and a base 15. The column 14 is vertically mounted on the base 15, and the support plate 13 is connected and fixed to the top of the column 14. The clamping arm drive component 12 is installed in the enclosed space formed between the support plate 13 and the base 15, which protects the drive component and optimizes the overall space utilization. The support plate 13 is machined with multiple radially distributed clearance grooves. The opening position and size of these clearance grooves match the movement trajectory of the clamping arm 11, ensuring that the clamping arm 11 can pass freely without interference during the opening and closing process.

[0047] like Figure 4 and Figure 5 As shown in one specific embodiment of this application, a plurality of support columns 16 are provided on the support plate 13 of the support base 1, and these support columns 16 are evenly distributed along the circumference of the stator 2. The top of the support column 16 is machined with a support surface that matches the lower support step 21 of the stator 2. When the stator 2 is placed on the support base 1, its lower support step and the support surface of the support column 16 form a surface contact support, ensuring that the stator 2 remains horizontal and stable during the testing process. The height of the support column 16 ensures that all support points are on the same horizontal plane, avoiding deformation or tilting of the stator 2 due to uneven support.

[0048] like Figure 4As shown in a specific embodiment of this application, a plurality of positioning posts 17 are provided on the support plate 13 of the support base 1. These positioning posts 17 are evenly distributed along the circumference of the stator 2. The outer cylindrical surface of the positioning post 17 forms a limiting fit with the outer annular surface of the stator 2, and radial positioning is achieved through the positioning posts 17.

[0049] like Figure 4 and Figure 5 As shown in a specific embodiment of this application, the positioning post 17 has a protrusion 171 machined on the side facing the stator 2. The outline shape of the protrusion 171 matches the positioning groove 22 on the outer ring surface of the stator 2, ensuring circumferential positioning of the stator 2 during assembly. When the stator 2 is placed on the support base 1, the matching relationship between the protrusion 171 and the positioning groove 22 forms a mechanical interlock, effectively limiting the circumferential displacement of the stator 2 during the testing process.

[0050] like Figure 4 As shown, in a specific embodiment of this application, the support base 1 is further configured with a rotary drive component 5, which forms a rigid transmission with the base 15. Specifically, the rotary drive component 5 can be a servo motor, whose output shaft is coaxial with the axis of the stator 2, enabling it to drive the base 15 and the entire support base 1 to rotate around the axis of the stator 2. By controlling the rotation angle of the rotary drive component 5 through a program, the inner diameter measuring instrument 3 can perform measurements at multiple preset angular positions within the inner ring of the stator 2, achieving multi-point data acquisition in the circumferential direction.

[0051] like Figure 4 As shown, in one specific embodiment of this application, the stator inner diameter detection mechanism further includes a base drive component 6. The support base 1 is integrally mounted on the motion platform of the base drive component 6. The base drive component 6 employs a linear motor or ball screw transmission mechanism, and its motion direction is consistent with the radial direction of the stator 2, enabling it to drive the support base 1 to perform linear displacement along the radial direction. The motion axis of the base drive component 6 intersects perpendicularly with the rotation axis of the rotary drive component 5; their coordinated operation expands the applicability of the detection mechanism, meeting the positioning and measurement needs of stators 2 of different specifications.

[0052] like Figures 1 to 3 As shown in a specific embodiment of this application, the axial direction of the stator 2 is set to be parallel to the vertical direction, and the measuring instrument drive 4 is vertically mounted, with its motion axis coaxial with the axial direction of the stator 2. The measuring instrument drive 4 drives the inner diameter measuring instrument 3 to move vertically up and down through a linear guide mechanism, with the motion stroke covering the entire axial length of the stator 2. When the measuring instrument drive 4 is activated, the inner diameter measuring instrument 3 can smoothly descend vertically and extend into the inner ring detection area of ​​the stator 2, or vertically lift out of the inner ring.

[0053] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A stator inner diameter detection mechanism, characterized in that, include The support base includes multiple movable clamping arms, each clamping arm being arranged along the circumference of the stator, and when the clamping arms are closed together, they can clamp the outer ring of the stator. An inner diameter measuring instrument is used to measure the inner diameter of the stator inner ring. A measuring instrument drive is provided, wherein the inner diameter measuring instrument is mounted on the measuring instrument drive, and the measuring instrument drive is used to drive the inner diameter measuring instrument to move axially along the inner ring of the stator so as to extend into or move out of the inner ring of the stator.

2. The stator inner diameter detection mechanism as described in claim 1, characterized in that, The support base includes a clamping arm drive component, and each clamping arm is driven to be connected to the clamping arm drive component. The clamping arm drive component is used to drive each clamping arm to close together or move away from each other.

3. The stator inner diameter detection mechanism as described in claim 2, characterized in that, The clamping arm drive is provided with a guide rail extending radially along the stator, and each clamping arm is slidably connected to the guide rail.

4. The stator inner diameter detection mechanism as described in claim 2, characterized in that, The support base includes a support plate, a column, and a base. The support plate is connected to one end of the column, and the base is connected to the other end of the column. The clamping arm drive is located in the space between the support plate and the base. The support plate is also provided with a clearance groove for avoiding the clamping arm.

5. The stator inner diameter detection mechanism as described in claim 4, characterized in that, The support base includes a plurality of support columns disposed on the support plate and arranged sequentially along the circumference of the stator, and the lower support step of the stator is supported on the support columns.

6. The stator inner diameter detection mechanism as described in claim 4, characterized in that, The support base includes a plurality of positioning posts disposed on the support plate and arranged sequentially along the circumference of the stator, wherein the positioning posts are limited and engaged with the outer ring surface of the stator.

7. The stator inner diameter detection mechanism as described in claim 6, characterized in that, The positioning post has a protrusion on the side facing the stator, and the protrusion engages with a groove on the outer ring surface of the stator.

8. The stator inner diameter detection mechanism as described in claim 4, characterized in that, The support base also includes a rotary drive component, and the base is driven to the rotary drive component, which is used to drive the base to rotate about the axial direction of the stator.

9. The stator inner diameter detection mechanism as described in any one of claims 1 to 8, characterized in that, It also includes a base drive, on which the support base is mounted, and the base drive is used to drive the support base to move radially along the stator.

10. The stator inner diameter detection mechanism as described in any one of claims 1 to 8, characterized in that, The axis of the stator is parallel to the vertical direction, and the measuring instrument drive is used to drive the inner diameter measuring instrument to move up and down in the vertical direction.

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