Stator outer diameter detection mechanism

Abstract

The application provides a stator outer diameter detection mechanism, which comprises a stator supporting assembly and a detection assembly. A stator to be detected is stably clamped through the stator supporting assembly. The detection assembly comprises a detection base, a sliding seat, an abutting piece, a detection driving piece and a displacement detection piece. The sliding seat is slidably connected to the detection base, the detection driving piece is in transmission connection with the sliding seat and is used for driving the sliding seat to move along the radial direction of the stator to be detected. The abutting piece is slidably penetrated on the sliding seat along the radial direction of the stator to be detected; the displacement detection piece is fixedly installed on the sliding seat, the detection end of the displacement detection piece is connected with the abutting piece and is used for monitoring the relative displacement amount of the abutting piece. The detection driving piece first drives the sliding seat to move along a predetermined stroke, and drives the abutting piece to contact the outer ring surface of the stator to be detected. When the abutting piece contacts the outer surface of the stator, the detection driving piece continues to apply a pressing force, so that the abutting piece is displaced relative to the sliding seat, and the displacement detection piece records the displacement amount of the abutting piece.

Description

Technical Field

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

[0002] In the field of motor manufacturing, the stator, as one of the core components, directly determines the assembly quality and operating performance of the motor due to the accuracy of its outer diameter. Traditional testing methods mainly rely on operators using calipers or dial indicators for contact measurements. This method is not only inefficient and unable to meet the speed requirements of modern production lines, but also suffers from poor data consistency due to the uncontrollability of manual operation, resulting in significant fluctuations in measurement results. Utility Model Content

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

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

[0005] A stator outer diameter measuring mechanism is provided, comprising:

[0006] Stator support assembly, the stator to be tested is clamped on the stator support assembly;

[0007] The detection assembly includes a detection base, a slide, an abutment, a detection drive, and a displacement detection element. The slide is slidably connected to the detection base, and the detection drive is driven to drive the slide to slide radially along the stator to be detected on the detection base. The abutment is slidably inserted through the slide along the radial direction of the stator to be detected, and the displacement detection element is mounted on the slide, with its detection end connected to the abutment.

[0008] The detection drive unit drives the slide to move along a predetermined stroke. After the slide causes the abutment to abut against the outer ring surface of the stator to be tested, it continues to press against the abutment, causing the abutment to move relative to the slide. The displacement detection unit detects the amount of displacement of the abutment relative to the slide.

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

[0010] Optionally, the stator outer diameter detection mechanism includes a first detection component and a second detection component arranged radially opposite to each other on both sides of the stator to be tested;

[0011] The first detection drive of the first detection component and the second detection drive of the second detection component respectively drive the first slide and the second slide to move closer or further away from each other; after the first slide and the second slide drive the first abutment and the second abutment to abut against the outer ring surface of the stator to be tested, they continue to press against the first abutment and the second abutment; the first displacement detection component detects the first displacement of the first abutment relative to the first slide; the second displacement detection component detects the second displacement of the second abutment relative to the second slide.

[0012] Optionally, the stator support assembly includes a positioning seat, and the inner annular surface of the stator to be tested is fitted onto the positioning seat.

[0013] Optionally, the stator support assembly includes a gripper and a gripper drive, the positioning seat is provided with a clearance groove for avoiding the gripper, the gripper is disposed in the clearance groove, and the gripper drive drives the gripper to extend or retract into the clearance groove.

[0014] Optionally, the gripper drive has a guide rail extending radially along the stator to be tested, and the gripper is slidably connected to the guide rail.

[0015] Optionally, the stator support assembly includes a support plate, a column, and a base. The support plate is connected to one end of the column, the base is connected to the other end of the column, the gripper drive is disposed in the space between the support plate and the base, and the positioning seat is mounted on the support plate.

[0016] Optionally, one end of the gripper is driven to the gripper drive member, and the other end of the gripper passes through the support plate and extends into the clearance groove.

[0017] Optionally, the stator support assembly includes a plurality of support columns disposed on the support plate and arranged sequentially along the circumference of the stator to be tested, with the lower support step portion of the stator to be tested supported on the support columns.

[0018] Optionally, the stator support assembly further includes a rotary drive component, the base being connected to the rotary drive component, and the rotary drive component being used to drive the base to rotate about the axial direction of the detection stator.

[0019] Optionally, the detection component further includes an elastic element, one end of which is connected to the abutment and the other end of which is connected to the slide.

[0020] The beneficial effects of the stator outer diameter testing mechanism provided in this application are as follows:

[0021] The stator outer diameter measuring mechanism provided in this application includes a stator support assembly and a measuring assembly. The stator to be measured is stably clamped by the stator support assembly, ensuring that the axial and radial positions of the stator remain fixed during measurement. The measuring assembly includes a measuring base, a slide, a contact member, a measuring drive member, and a displacement measuring member. The slide is slidably connected to the measuring base, and the measuring drive member is driven by the slide to move the slide along the radial direction of the stator to be measured. The contact member is slidably inserted through the slide along the radial direction of the stator to be measured; the displacement measuring member is fixedly installed on the slide, and its measuring end is connected to the contact member to monitor the relative displacement of the contact member.

[0022] During the measurement process, the detection drive first drives the slide to move along a predetermined stroke, causing the abutment to contact the outer ring surface of the stator to be tested. After the abutment contacts the outer surface of the stator, the detection drive continues to apply pressure, forcing the abutment to displace relative to the slide. At this time, the displacement detection device records the amount of displacement of the abutment. Attached Figure Description

[0023] 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.

[0024] Figure 1 A schematic diagram of the working state structure of the stator outer diameter detection mechanism provided in this application;

[0025] Figure 2 A three-dimensional structural diagram of the stator outer diameter detection mechanism provided in this application;

[0026] Figure 3 A cross-sectional structural schematic diagram of the stator outer diameter detection mechanism provided in this application;

[0027] Figure 4 This is a three-dimensional structural diagram of the stator support assembly provided in this application.

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

[0029] 1. Stator support assembly; 11. Positioning seat; 111. Clearance groove; 12. Gripper; 13. Gripper drive; 131. Guide rail; 14. Support plate; 15. Column; 16. Base; 17. Rotation drive; 18. Support column; 2. Stator to be tested; 3. Testing assembly; 31. First testing assembly; 311. First testing drive; 312. First slide; 313. First abutment; 314. First displacement detection component; 32. Second testing assembly; 321. Second testing drive; 322. Second slide; 323. Second abutment; 324. Second displacement detection component; 33. Elastic component. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] To address the technical problems of low efficiency and poor consistency of measurement results in manual measurement of stator outer diameter, such as... Figures 1 to 3As shown, this application provides a stator outer diameter detection mechanism, which includes a stator support assembly 1 and a detection assembly 3. The stator 2 to be tested is stably clamped by the stator support assembly 1 to ensure that the axial and radial positions of the stator 2 remain fixed during the measurement process. The detection assembly 3 includes a detection base, a slide, an abutment, a detection drive, and a displacement detection component.

[0035] The slide block is slidably connected to the detection base, and the detection drive component is driven by the slide block to drive the slide block to move along the radial direction of the stator 2 to be tested. The abutment component is slidably inserted through the slide block along the radial direction of the stator 2 to be tested; the displacement detection component is fixedly installed on the slide block, and its detection end is connected to the abutment component to monitor the relative displacement of the abutment component.

[0036] During the measurement process, the detection drive first drives the slide to move along a predetermined stroke L1, causing the abutment to contact the outer ring surface of the stator 2 to be tested. After the abutment contacts the outer surface of the stator 2, the detection drive continues to apply pressure, forcing the abutment to displace relative to the slide. At this time, the displacement detection device records the displacement L2 of the abutment. Since the initial position of the abutment is far from the axis of the stator support assembly 1, and the travel stroke L1 of the slide is known, the outer diameter of the stator 2 to be tested can be calculated using the formula L3 = (L0 - L1 + L2) * 2.

[0037] like Figures 1 to 3 As shown, in a specific embodiment of this application, a first detection component 31 and a second detection component 32 are arranged radially opposite to each other on both sides of the stator 2 to be tested.

[0038] The first detection drive 311 of the first detection component 31 and the second detection drive 321 of the second detection component 32 respectively drive the first slide block 312 and the second slide block 322 to move closer or further away from each other; after the first slide block 312 and the second slide block 322 drive the first abutting member 313 and the second abutting member 323 to abut against the outer ring surface of the stator 2 to be tested, they continue to press against the first abutting member 313 and the second abutting member 323; the first displacement detection member 314 detects the first displacement of the first abutting member 313 relative to the first slide block 312; the second displacement detection member 324 detects the second displacement of the second abutting member 323 relative to the second slide block 322.

[0039] like Figures 1 to 3As shown in a specific embodiment of this application, the stator outer diameter detection mechanism adopts a symmetrically arranged dual detection component structure, specifically including a first detection component 31 and a second detection component 32 arranged radially opposite to each other along the stator 2 to be detected. The first detection component 31 includes a first detection drive 311, a first slide 312, a first abutment 313, and a first displacement detection component 314; the second detection component 32 includes a second detection drive 321, a second slide 322, a second abutment 323, and a second displacement detection component 324. The first detection drive 311 and the second detection drive 321 respectively drive the first slide 312 and the second slide 322 to move in opposite directions or in opposite directions along the radial direction of the stator 2 to be detected, thereby realizing the opening and closing adjustment of the detection components. When the first slide block 312 and the second slide block 322 respectively drive the first abutment member 313 and the second abutment member 323 to contact the outer ring surface of the stator 2 to be tested, the first detection drive member 311 and the second detection drive member 321 continue to apply pressure, causing the first abutment member 313 and the second abutment member 323 to be displaced relative to the first slide block 312 and the second slide block 322 respectively. At this time, the first displacement detection member 314 detects the displacement change L of the first abutment member 313 relative to the first slide block 312. 21 The second displacement detection element 324 detects the displacement change L of the second abutment element 323 relative to the second slide block 322. 22 Since the initial position of the contact piece is at a distance L0 from the center of the stator support assembly 1, and the travel distance L1 of the slide is known, combined with the displacement measured by the displacement detection piece, the distance L0 is calculated. 21 L 22 This can be achieved using the formula L3 = (L0 - L1 + L) 21 ) + (L0 - L1 + L 22 ) Calculate the outer diameter of the stator 2 to be tested.

[0040] like Figure 4 As shown, in a specific embodiment of this application, the stator support assembly 1 uses a positioning seat 11 as the core support structure, and the outer diameter of the positioning seat 11 matches the inner ring surface of the stator 2 to be tested. The stator 2 to be tested is directly fitted onto the positioning seat 11 through its inner ring surface to achieve positioning and installation.

[0041] like Figure 4As shown, in a specific embodiment of this application, the stator support assembly 1 includes a gripper 12 and a gripper drive 13. Correspondingly, the surface of the positioning seat 11 is provided with a clearance groove 111 that cooperates with the gripper 12. The gripper 12 is movably disposed inside the clearance groove 111, and its extension or retraction is controlled by the driving action of the gripper drive 13. When the gripper 12 is in the extended state, its working end protrudes from the surface of the positioning seat 11, forming a radial clamping force on the stator 2 to be tested; when the gripper 12 is retracted, it is completely housed in the clearance groove 111, releasing the radial clamping of the stator 2 to be tested.

[0042] like Figure 4 As shown, in one specific embodiment of this application, the gripper drive 13 employs a guide rail mechanism to control the radial movement of the gripper 12. The guide rail 131 extends radially along the stator 2 to be tested, and the gripper 12 is mounted on the guide rail 131 via a sliding fit, ensuring the straightness and stability of its movement trajectory. This guide rail 131 structure provides precise guidance for the gripper 12, enabling it to smoothly extend or retract radially under the drive of the gripper drive 13. The guide surface of the guide rail 131 is precision-machined to form a tight fit with the sliding components of the gripper 12, effectively eliminating radial clearance during movement and ensuring the repeatability and positioning accuracy of the clamping action. This guide rail mechanism design not only improves the reliability of the gripper 12's movement but also ensures the accuracy of the clamping force direction, avoiding stator positioning errors caused by movement deviations.

[0043] like Figure 4 As shown, in one specific embodiment of this application, the stator support assembly 1 includes a support plate 14, a column 15, and a base 16. One end of the column 15 is rigidly connected to the support plate 14, and the other end is fixed to the base 16. A gripper drive 13 is arranged in the space between the support plate 14 and the base 16. A positioning seat 11 is mounted on the upper surface of the support plate 14 by fasteners.

[0044] like Figure 4 As shown in a specific embodiment of this application, one end of the gripper 12 is poweredly connected to the gripper drive 13 via a transmission mechanism, while the other end extends through a pre-set through hole on the support plate 14 into the clearance groove 111 of the positioning seat 11. When the gripper drive 13 is activated, the driving force is directly transmitted to the working area of ​​the clearance groove 111 through the gripper 12, thereby achieving reliable clamping of the stator 2 to be tested.

[0045] like Figure 4As shown in a specific embodiment of this application, the stator support assembly 1 has multiple support columns 18 on the support plate 14. These support columns 18 are evenly distributed along the circumference of the stator 2 to be tested, which can effectively distribute the weight load of the stator and avoid the positioning interference problem that may be caused by traditional continuous support rings. The upper end face of each support column 18 forms a support plane with a uniform support height, which is used to reliably support the lower support step of the stator 2 to be tested. The height of the support columns 18 must ensure that the support surfaces of all support columns 18 are on the same horizontal plane, providing stable three-point or multi-point support for the stator 2 to be tested.

[0046] like Figure 4 As shown, in a specific embodiment of this application, the stator support assembly 1 is further configured with a rotary drive 17. The rotary drive 17 is rigidly connected to the base 16. The output shaft of the rotary drive 17 is coaxially aligned with the axial direction of the stator 2 to be tested, driving the base 16 and the entire stator support assembly 1 to rotate around the axial direction of the stator 2. This rotation mechanism allows the stator 2 to be adjusted circumferentially during the testing process, enabling multi-point testing of the outer diameter of the stator 2 through rotational positioning. The rotary drive 17 is driven by a servo motor or stepper motor, enabling precise control of the rotation angle. This rotational testing method effectively solves the problem that traditional single-point measurement cannot fully reflect the roundness of the stator's outer diameter. Through comprehensive analysis of multi-point measurement data, the outer diameter accuracy and roundness error of the stator can be more accurately evaluated. The rotation angle of the rotary drive 17 can be programmed and controlled according to testing requirements, realizing an automated multi-point testing process.

[0047] like Figure 3 As shown, in a specific embodiment of this application, the detection component 3 is further provided with an elastic element 33, one end of which is connected to the abutment and the other end to the slide. The elastic element 33 forms an elastic connection between the abutment and the slide. When the abutment is subjected to the reaction force of the outer annular surface of the stator 2 to be detected, the elastic element 33 can generate corresponding elastic deformation, thereby ensuring that the abutment and the outer surface of the stator maintain a constant contact pressure. This elastic connection structure can ensure the stability of the measuring force and avoid damage to the stator surface that may be caused by rigid contact. The elastic element 33 can provide appropriate buffering during the measurement process, while ensuring that the displacement detection element can accurately capture the displacement change of the abutment, effectively improving the stability of the measurement process and the reliability of the measurement results.

[0048] 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 outer diameter detection mechanism, characterized in that, include: Stator support assembly, the stator to be tested is clamped on the stator support assembly; The detection assembly includes a detection base, a slide, an abutment, a detection drive, and a displacement detection element. The slide is slidably connected to the detection base, and the detection drive is driven to drive the slide to slide radially along the stator to be detected on the detection base. The abutment is slidably inserted through the slide along the radial direction of the stator to be detected, and the displacement detection element is mounted on the slide, with its detection end connected to the abutment. The detection drive unit drives the slide to move along a predetermined stroke. After the slide causes the abutment to abut against the outer ring surface of the stator to be tested, it continues to press against the abutment, causing the abutment to move relative to the slide. The displacement detection unit detects the amount of displacement of the abutment relative to the slide.

2. The stator outer diameter detection mechanism as described in claim 1, characterized in that, It includes a first detection component and a second detection component arranged radially opposite to each other on both sides of the stator to be tested; The first detection drive of the first detection component and the second detection drive of the second detection component respectively drive the first slide and the second slide to move closer or further away from each other; after the first slide and the second slide drive the first abutment and the second abutment to abut against the outer ring surface of the stator to be tested, they continue to press against the first abutment and the second abutment; the first displacement detection component detects the first displacement of the first abutment relative to the first slide; the second displacement detection component detects the second displacement of the second abutment relative to the second slide.

3. The stator outer diameter detection mechanism as described in claim 1, characterized in that, The stator support assembly includes a positioning seat, and the inner annular surface of the stator to be tested is fitted onto the positioning seat.

4. The stator outer diameter detection mechanism as described in claim 3, characterized in that, The stator support assembly includes a gripper and a gripper drive. The positioning seat is provided with a clearance groove for avoiding the gripper. The gripper is disposed in the clearance groove. The gripper drive drives the gripper to extend or retract from the clearance groove.

5. The stator outer diameter detection mechanism as described in claim 4, characterized in that, The gripper drive has a guide rail extending radially along the stator to be tested, and the gripper is slidably connected to the guide rail.

6. The stator outer diameter detection mechanism as described in claim 4, characterized in that, The stator support assembly 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 gripper drive is located in the space between the support plate and the base, and the positioning seat is mounted on the support plate.

7. The stator outer diameter detection mechanism as described in claim 6, characterized in that, One end of the gripper is driven to the gripper drive member, and the other end of the gripper passes through the support plate and extends into the clearance groove.

8. The stator outer diameter detection mechanism as described in claim 6, characterized in that, The stator support assembly includes a plurality of support columns disposed on the support plate and arranged sequentially along the circumference of the stator to be tested, with the lower support step portion of the stator to be tested supported on the support columns.

9. The stator outer diameter detection mechanism as described in claim 6, characterized in that, The stator support assembly further includes a rotary drive component, and the base is connected to the rotary drive component. The rotary drive component is used to drive the base to rotate about the axial direction of the detection stator.

10. The stator outer diameter detection mechanism as described in any one of claims 1 to 9, characterized in that, The detection component also includes an elastic element, one end of which is connected to the abutment and the other end of which is connected to the slide.

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