Stator electrical property detection device

Abstract

The utility model discloses a stator electrical performance detection device. The device comprises a frame; a guide rail set extending in the X-axis direction is arranged in the rack. The stator loading jig is arranged on the guide rail group; an automatic detection module; the automatic detection module is arranged on the rack and located beside the guide rail set, the automatic detection module comprises a probe set, a lifting driving unit, an X-axis translation driving unit and a Y-axis translation driving unit, and the lifting driving unit drives the probe set to ascend and descend up and down in the Z-axis direction; the X-axis translation driving unit drives the lifting driving unit and the probe group to translate along the X-axis direction, and the Y-axis translation driving unit drives the X-axis translation driving unit, the lifting driving unit and the probe group to translate along the Y-axis direction, so as to switch the working position and the non-working position of the automatic detection module. Therefore, automatic probe detection of the electrical performance of the stator product is realized, the detection efficiency and reliability are improved, different product types can be met, the universality is good, and the equipment configuration cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of stator electrical performance detection technology, in particular to a stator electrical performance detection device. Background Art

[0002] Currently, electrical performance testing of motor stators is primarily performed manually. For example, a person manually places the contactor (or gripper) connected to the testing instrument in contact with the stator's PIN pins. The testing instrument then displays whether the product is qualified. If qualified, the product is placed in the qualified area; if unqualified, the product is placed in the defective area. This manual testing method is inefficient and prone to poor testing due to human error.

[0003] Later, some semi-automatic detection devices also appeared. For example, CN210863973U disclosed a stator performance detection equipment, including a machine, a carrier installed on the machine and used to carry the stator, a lower pressure plate installed on the machine for lifting, a detection head installed on the lower pressure plate, a lifting drive mechanism for driving the lower pressure plate to move closer to or away from the carrier, and a performance detector electrically connected to the detection head. During actual operation, the performance detector is started, and the stator to be tested is placed in a positioning cavity of the corresponding structure according to the specifications of the stator to be tested, so that the bottom of the stator contacts and is electrically connected to the conductive part in the corresponding positioning cavity. Then the lifting drive mechanism drives the lower pressure plate and the detection head to move closer to the carrier until the lower pressure plate presses the stator shell onto the carrier, and the detection head contacts and is electrically connected to the designated position of the stator coil or the stator PCB board, thereby realizing the detection of the electrical performance parameters of the stator (such as resistance, inductance, pulse, etc.), and the relevant electrical performance parameters are displayed through the performance detector.

[0004] However, different types of stator products differ not only in outer diameter but also in PIN positions. The same semi-automatic testing device is unable to meet the electrical performance testing requirements of a variety of stator products, requiring the factory to purchase more different testing devices. Furthermore, when using this testing device, manual positioning of the stator product on the testing device is required, which results in high labor costs and is not convenient for integration into automated production lines.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies in the prior art, and its main purpose is to provide a stator electrical performance testing device, which realizes automated probe testing of the electrical performance of stator products, improves detection efficiency and reliability, and can meet the needs of different product types, has good versatility, reduces equipment configuration costs, is suitable for connection to automated production lines, and saves labor.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A stator electrical performance detection device, comprising:

[0009] The frame is provided with a guide rail group extending along the X-axis;

[0010] stator loading jig; the stator loading jig is arranged on the guide rail assembly;

[0011] Automatic detection module; the automatic detection module is arranged on the frame and is located beside the guide rail group. The automatic detection module includes a probe group, a lifting drive unit, an X-axial translation drive unit and a Y-axial translation drive unit. The lifting drive unit drives the probe group to move up and down along the Z-axis, the X-axial translation drive unit drives the lifting drive unit and the probe group to translate along the X-axis, and the Y-axial translation drive unit drives the X-axial translation drive unit, the lifting drive unit and the probe group to translate along the Y-axis to switch the working position and the non-working position of the automatic detection module.

[0012] As a preferred solution, an electrical performance testing instrument is further provided on one side of the rack and is connected to the upper end of the probe via a cable.

[0013] As a preferred solution, further, a grounding detection module is provided on the rack.

[0014] As a preferred solution, the ground detection module includes a detection probe and a translation cylinder, and the translation cylinder is a two-stage cylinder.

[0015] As a preferred solution, the automatic detection module is loaded on a mounting plate, and the mounting plate is mounted on the frame. A Y-axis guide rail is provided on the mounting plate, and the Y-axis guide rail is arranged parallel to the Y-axis translation drive unit at a distance, and the two are arranged at an X-axis distance. The Y-axis translation drive unit is driven and connected to a sliding plate, and the bottom of the sliding plate slides along the Y-axis guide rail through a first adapter portion, and the X-axis translation drive unit is arranged on the sliding plate.

[0016] As a preferred solution, the sliding plate is provided with an X-axis guide rail, the X-axis translation drive unit is driven and connected to a lifting base, the lifting base slides along the X-axis guide rail through a second adapter, the lifting drive unit is provided on the lifting base, and a carrier plate is provided at the bottom position of the front side of the lifting base, and the carrier plate is made of insulating material; the probe group includes a probe plate and several probes arranged on the probe plate, the lifting drive unit drives the probe plate to move up and down, the probe plate and several of the probes are located above the carrier plate, and a gap is retained between the bottom end of the probe and the top of the carrier plate.

[0017] As a preferred solution, the carrier plate is made of ceramic material.

[0018] As a preferred solution, the bottom of the probe is designed to have a convex-concave toothed surface;

[0019] and / or:

[0020] Some or all of the probes are floating spring probes.

[0021] As a preferred solution, the stator loading jig can be slidably arranged along the guide rail group in the X-axis direction; the stator loading jig is provided with a plurality of support columns arranged at intervals along the horizontal circumferential direction, and a plurality of support steps are provided on the inner side of the support columns. The multiple support steps are arranged from bottom to top and from inside to outside in the radial direction, so that the lower support steps are used to support and position stator products with a slightly smaller outer diameter, and the upper support steps are used to support and position stator products with a slightly larger outer diameter.

[0022] As a preferred solution, the guide rail group includes two guide rails spaced apart and arranged in parallel along the Y-axis, with a space reserved between the two guide rails; the guide rail group passes through both ends of the frame along the X-axis to serve as an inlet and an outlet.

[0023] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it is mainly achieved through the arrangement of a frame, a guide rail group, a stator loading fixture and an automatic detection module. The automatic detection module is arranged on the frame and is located beside the guide rail group. The automatic detection module includes a probe group, a lifting drive unit, an X-axial translation drive unit and a Y-axial translation drive unit. The lifting drive unit drives the probe group to move up and down along the Z-axis, the X-axial translation drive unit drives the lifting drive unit and the probe group to translate along the X-axis, and the Y-axial translation drive unit drives the X-axial translation drive unit, the lifting drive unit and the probe group to translate along the Y-axis to switch the working position and the non-working position of the automatic detection module. In this way, automatic probe detection of the electrical performance of the stator product is realized, the detection efficiency and reliability are improved, and it can meet the needs of different product types, has good versatility, reduces equipment configuration costs, is suitable for access to automated production lines, and saves labor.

[0024] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional assembly diagram of a stator electrical performance detection device according to an embodiment of the present utility model;

[0026] Figure 2 This is a diagram showing a partial assembly structure of a stator electrical performance detection device according to an embodiment of the present utility model;

[0027] Figure 3 yes Figure 2 An exploded view of the structure shown;

[0028] Figure 4 yes Figure 2 a top view of the structure shown;

[0029] Figure 5 This is a three-dimensional assembly diagram of the automatic detection module according to an embodiment of the present utility model;

[0030] Figure 6 This is a three-dimensional assembly diagram of the guide rail assembly, stator loading fixture, and jacking unit of an embodiment of the present invention;

[0031] Figure 7 It is a three-dimensional assembly diagram of the ground detection module according to an embodiment of the present utility model.

[0032] Description of the accompanying drawings: frame 10, guide rail 11, empty space 12, stator loading fixture 20, support column 21, support step 22, lifting cylinder 23, automatic detection module 30, probe group 31, probe 311, probe plate 312, lifting drive unit 32, X-axial translation drive unit 33, Y-axial translation drive unit 34, mounting plate 35, Y-axis guide rail 36, sliding plate 37, X-axis guide rail 38, lifting base 39, carrier plate 391, grounding detection module 40, detection contact pin 41, translation cylinder 42, electrical performance detection instrument 50. DETAILED DESCRIPTION

[0033] Please refer to Figures 1 to 7 As shown, it shows the specific structure of an embodiment of the present utility model.

[0034] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0035] A stator electrical performance detection device includes a frame 10, a stator loading fixture 20 and an automatic detection module 30.

[0036] A guide rail group extending along the X-axis is provided in the frame 10; specifically, the guide rail group includes two guide rails 11 spaced apart and arranged in parallel along the Y-axis, with a space 12 reserved between the two guide rails 11; the guide rails are usually made of profiles, and grooves or guide bars can be provided on the top and sides thereof for matching and positioning the stator loading fixture 20; the guide rail group passes through both ends of the frame 10 along the X-axis, serving as the inlet and outlet of the stator electrical performance testing station, making it easy to connect the stator electrical performance testing station with other stations and suitable for automated production.

[0037] The stator loading jig 20 is arranged on the guide rail group and can be slidably arranged along the guide rail group in the X-axis direction; the stator loading jig 20 is provided with a plurality of support columns 21 arranged at intervals along the circumferential direction (for example, optionally evenly distributed along the circumference), and a plurality of support steps 22 are provided on the inner side of the support columns 21. The plurality of support steps 22 are arranged from bottom to top and from inside to outside in the radial direction. In this way, the lower support steps 22 can be used to support and position stator products with a slightly smaller outer diameter, while the upper support steps 22 can be used to support and position stator products with a slightly larger outer diameter, thereby meeting the placement and positioning requirements of stator products with different outer diameters and improving the versatility of the stator electrical performance testing device. A lifting unit, such as a lifting cylinder 23, is provided below the empty space. When the stator loading jig 20 slides into position along the guide rail assembly (the position sensor can be used to understand the position of the stator loading jig 20 in real time), the lifting cylinder 23 lifts the stator loading jig 20 upward, so that the stator loading jig 20 is separated from the guide rail assembly and is suspended and stationary, and will not be affected by the conveying drive and slide along the X-axis of the guide rail assembly; the support column 21 of the stator loading jig 20 is made of insulating material. Preferably, ceramic material is selected in this embodiment to ensure that it has sufficient hardness and relatively ideal dimensional accuracy, which has a better placement and positioning effect on the stator product. A handle portion is also provided on the stator loading jig 20, which is roughly in the shape of an inverted U. Two handles can be provided, which are arranged at intervals along the X-axis on the periphery of the positioning area formed by the multiple support columns 21.

[0038] The automatic detection module 30 is arranged on the frame 10 and is located beside the guide rail group. The automatic detection module 30 includes a probe group 31, a lifting drive unit 32, an X-axial translation drive unit 33 and a Y-axial translation drive unit 34. The lifting drive unit 32 drives the probe group 31 to move up and down along the Z-axis, the X-axial translation drive unit 33 drives the lifting drive unit 32 and the probe group 31 to translate along the X-axis, and the Y-axial translation drive unit 34 drives the X-axial translation drive unit 33, the lifting drive unit 32 and the probe group 31 to translate along the Y-axis to switch the working position and the non-working position of the automatic detection module 30. When the stator loading fixture 20 slides into position along the guide rail group, the Y-axis translation drive unit 34 drives the X-axis translation drive unit 33, the lifting drive unit 32 and the probe group 31 to translate along the Y-axis to approach the top of the stator loading fixture 20. At this time, it is the working position of the automatic detection module 30, so that the probe group 31 corresponds to the top of the PIN needle of the stator product. The lifting drive unit 32 drives the probe group 31 to press down and contact with the corresponding PIN needle, thereby detecting After testing the PIN conductivity, the Y-axis translation drive unit 34 drives the X-axis translation drive unit 33, the lifting drive unit 32, and the probe assembly 31 to translate along the Y-axis, away from the top of the stator loading jig 20. The automatic inspection module 30 is positioned to the side of the guide rail assembly to avoid the stator loading jig 20. At this point, the automatic inspection module 30 is in its non-operating position, and the stator loading jig 20, carrying the stator product, flows out along the guide rail assembly (or to the next workstation). The provision of the X-axis translation drive unit 33 allows the probe assembly 31 to be adjusted in the X-axis direction, thereby accommodating different PIN positions for different stator products due to different product types, further diversifying the stator products suitable for the stator electrical performance testing device. In this embodiment, the lifting drive unit 32, the X-axial translation drive unit 33 and the Y-axial translation drive unit 34 all use cylinders (in other embodiments, these drive units can also be driven in whole or in part by motors), which are easy to control and switch. Among them, the lifting drive unit 32 and the X-axial translation drive unit 33 can use a first-stage cylinder or a second-stage cylinder, so that each has one or two different drive strokes.During actual production, the automatic detection module 30 can be loaded on a mounting plate 35, and the mounting plate 35 is mounted on the frame 10. The mounting plate 35 is provided with a Y-axis guide rail 36, and the Y-axis guide rail 36 is arranged parallel to the Y-axis translation drive unit 34, and the two are arranged in the X-axis direction. The Y-axis translation drive unit 34 is driven and connected to a sliding plate 37, and the bottom of the sliding plate 37 slides along the Y-axis guide rail 36 through a first adapter. The X-axis translation drive unit 33 is arranged on the sliding plate 37, and the sliding plate 37 is provided with an X-axis guide rail 38. The X-axis translation drive unit 33 is driven and connected to a lifting base 39, and the lifting base 39 slides along the X-axis guide rail 38 through a second adapter. The lifting drive unit 32 is arranged on the lifting base 39 (for example, the front side), and a carrier plate 391 is provided on the front side of the lifting base 39 near the bottom position. The carrier plate 391 is made of insulating material. Preferably, ceramic material is selected in this embodiment to ensure that it has sufficient hardness and relatively ideal dimensional accuracy, and has a better positioning effect on the PIN needle of the stator product. The probe group 31 includes a plurality of probes 311, which are arranged on a probe plate 312. The lifting drive unit 32 drives the probe plate 312 to move up and down. The probe plate 312 and the plurality of probes 311 are all located above the carrier plate 391. Usually, a gap is reserved between the bottom end of the probe 311 and the top of the carrier plate 391. During detection, the PIN needle of the stator product extends into the gap. After the probe 311 is pressed down, the PIN needle of the stator product is clamped between the carrier plate 391 and the corresponding probe 311, ensuring that the probe 311 is in contact with the corresponding PIN needle of the stator product. Preferably, the bottom of the probe 311 can be designed as a convex and concave tooth surface to improve contact reliability. Since several of the probes are pressed down together, some or all of the probes can be designed as floating spring probes to avoid the problem of all probes being pressed down hard, which may cause the contact surface height between them and the PIN needles of the stator product to be inconsistent and cause wear during pressing.

[0039] Furthermore, an electrical performance testing instrument 50 is provided on one side of the frame 10 (the electrical performance testing instrument is a mature externally purchased technology product, for example, a tester of brand: Aino, model: AN8361B1P81-GDXH56. Of course, this is not limited to this brand and model, and other brands of testers on the market can also be used). The tester is connected to the upper end of the probe via a first cable. Furthermore, the stator electrical performance testing device also has a grounding detection function. Specifically, a grounding detection module 40 is provided on the frame 10 to enable grounding detection of the stator winding. The grounding detection module 40 includes a detection probe 41 and a translation cylinder 42. The translation cylinder 42 is a two-stage cylinder that can control two different lifting strokes, thereby meeting the grounding detection requirements of stator products with different outer diameters. The detection probe 41 is connected to the electrical performance testing instrument via a second cable.

[0040] The design focus of the present invention is that it is mainly through the arrangement of a frame 10, a guide rail group, a stator loading fixture 20 and an automatic detection module 30. The automatic detection module 30 is arranged on the frame 10 and is located beside the guide rail group. The automatic detection module 30 includes a probe group 31, a lifting drive unit 32, an X-axis translation drive unit 33 and a Y-axis translation drive unit 34. The lifting drive unit 32 drives the probe group 31 to move up and down along the Z-axis, the X-axis translation drive unit 33 drives the lifting drive unit 32 and the probe group 31 to translate along the X-axis, and the Y-axis translation drive unit 34 drives the X-axis translation drive unit 33, the lifting drive unit 32 and the probe group 31 to translate along the Y-axis to switch the working position and the non-working position of the automatic detection module 30. In this way, automatic probe detection of the electrical performance of the stator product is realized, the detection efficiency and reliability are improved, and it can meet different product types, has good versatility, reduces equipment configuration costs, is suitable for access to automated production lines, and saves labor.

[0041] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A stator electrical performance detection device, characterized in that: Includes: The frame is provided with a guide rail group extending along the X-axis; stator loading jig; the stator loading jig is arranged on the guide rail assembly; Automatic detection module; the automatic detection module is arranged on the frame and is located beside the guide rail group. The automatic detection module includes a probe group, a lifting drive unit, an X-axial translation drive unit and a Y-axial translation drive unit. The lifting drive unit drives the probe group to move up and down along the Z-axis, the X-axial translation drive unit drives the lifting drive unit and the probe group to translate along the X-axis, and the Y-axial translation drive unit drives the X-axial translation drive unit, the lifting drive unit and the probe group to translate along the Y-axis to switch the working position and the non-working position of the automatic detection module.

2. The stator electrical performance detection device according to claim 1, characterized in that: An electrical performance detection instrument is also provided on one side of the rack and is connected to the upper end of the probe via a cable.

3. The stator electrical performance detection device according to claim 1 or 2, characterized in that: Furthermore, a grounding detection module is also provided on the rack.

4. The stator electrical performance detection device according to claim 3, characterized in that: The grounding detection module includes a detection probe and a translation cylinder, and the translation cylinder is a two-stage cylinder.

5. The stator electrical performance detection device according to claim 1, characterized in that: The automatic detection module is loaded on a mounting plate, and the mounting plate is mounted on the frame. A Y-axis guide rail is provided on the mounting plate. The Y-axis guide rail is arranged in parallel with the Y-axis translation drive unit, and the two are arranged in an X-axis distance. The Y-axis translation drive unit is driven and connected with a sliding plate, and the bottom of the sliding plate slides along the Y-axis guide rail through a first adapter portion. The X-axis translation drive unit is arranged on the sliding plate.

6. The stator electrical performance detection device according to claim 5, characterized in that: An X-axis guide rail is provided on the sliding plate, and the X-axis translation drive unit is driven and connected to a lifting base. The lifting base slides along the X-axis guide rail through a second adapter. The lifting drive unit is provided on the lifting base, and a carrier plate is provided at the bottom position of the front side of the lifting base, and the carrier plate is made of insulating material; the probe group includes a probe plate and several probes arranged on the probe plate, and the lifting drive unit drives the probe plate to move up and down. The probe plate and the several probes are all located above the carrier plate, and a gap is retained between the bottom end of the probe and the top of the carrier plate.

7. The stator electrical performance detection device according to claim 6, characterized in that: The carrier plate is made of ceramic material.

8. The stator electrical performance detection device according to claim 1, characterized in that: The bottom of the probe is designed as a convex-concave toothed surface; and / or: Some or all of the probes are floating spring probes.

9. The stator electrical performance detection device according to claim 1, characterized in that: The stator loading jig can be slidably arranged along the guide rail group in the X-axis direction; the stator loading jig is provided with a plurality of support columns arranged at intervals along the horizontal circumferential direction, and a plurality of support steps are provided on the inner side of the support columns. The multiple support steps are arranged from bottom to top and from inside to outside in the radial direction, so that the lower support steps are used to support and position stator products with a slightly smaller outer diameter, and the upper support steps are used to support and position stator products with a slightly larger outer diameter.

10. The stator electrical performance detection device according to claim 1, characterized in that: The guide rail group includes two guide rails spaced apart and arranged in parallel along the Y-axis, with a space reserved between the two guide rails; the guide rail group passes through both ends of the frame along the X-axis to serve as an inlet and an outlet.

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