Stator inspection fixture
By designing a stator inspection fixture, automated inspection and real-time monitoring of the stator cavity were achieved, solving the problems of low inspection efficiency and insufficient accuracy in existing technologies, and improving inspection efficiency and the stability of stator quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINJIANG ZHICAI TECHNOLOGY CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-16
AI Technical Summary
Existing technologies lack efficient automated inspection methods after stator welding, resulting in large human operation errors, low inspection efficiency, and difficulty in achieving real-time monitoring and feedback of stator quality.
Design a stator inspection fixture, comprising a fixing part, a detection part, a driving component, and a moving component. Through the automatic insertion, rotation, and movement of a mandrel within the stator, combined with sensors for real-time detection, reduce human error and improve detection accuracy.
This technology enables real-time detection and repair of the stator's internal cavity quality, improving detection efficiency and accuracy, reducing errors caused by manual operation, and ensuring the stability of stator quality.
Smart Images

Figure CN224365945U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining and testing technology, and in particular to a stator inspection fixture. Background Technology
[0002] After the stator welding is completed, a final inspection is often required before assembly. This can be done by applying anti-scratching mud to the mandrel and inserting it into the stator cavity for inspection. By observing whether there are scratches or marks on the anti-scratching mud on the surface of the removed mandrel, the quality of the stator cavity can be judged. For example, it can be seen whether there are defects such as cracks or slag inclusions in the weld after stator welding, which provides a strong guarantee for the quality of the stator.
[0003] To improve testing efficiency and accuracy, tooling needs to be designed to enable automatic insertion, positioning, and testing of mandrels, thereby greatly reducing errors and time costs associated with manual operation. On the other hand, it enables real-time monitoring and feedback of stator quality. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a stator inspection fixture to solve one or more problems in the prior art.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A stator inspection fixture includes a worktable, a base, a stator, and a mandrel. The base is mounted on the surface of the worktable, and the mandrel is movably disposed within the stator. The fixture also includes a fixing part and a detection part, which are spaced apart from each other on the base. The fixture further includes a driving component and a moving component, both of which are disposed on the base and work together to move the mandrel relative to the stator.
[0007] Furthermore, the fixing part includes a first bracket, which is fixed to the surface of the base, and the first bracket has an opening along the length direction of the stator; a positioning member that can extend into the opening is also provided on the surface of the first bracket.
[0008] Furthermore, the detection unit includes a second bracket, which is fixed to the surface of the base. The second bracket has a slot, which is opened along the length direction of the stator and is collinear with the center of the orifice.
[0009] Furthermore, the detection unit also includes a first sensor, a second sensor, and a digital display. The first sensor and the second sensor are respectively disposed on both sides of the second bracket, the digital display is adjacent to the first sensor, and both the second sensor and the digital display can extend into the slot.
[0010] Furthermore, the drive assembly includes a third bracket and a first motor, the third bracket being fixed to the surface of the base, and the first motor being fixed to the third bracket.
[0011] Furthermore, the drive assembly also includes a connecting rod and an adapter, one end of the adapter being fitted to the first motor and the other end being fitted to the connecting rod, the other end of the connecting rod being connected to the mandrel.
[0012] Furthermore, the movable component includes a fourth bracket and a fifth bracket, both of which are disposed on the surface of the base. A disc assembly that is parallel to each other and perpendicular to the length direction of the base is also provided between the fourth bracket and the fifth bracket.
[0013] Furthermore, the disc assembly includes a first disc, a second disc, a third disc, and a fourth disc arranged concentrically and sequentially along the length of the connecting rod, wherein the first disc and the fourth disc are respectively fitted to the fourth bracket and the fifth bracket; a first support member is evenly arranged between the first disc and the second disc, a second support member is evenly arranged between the second disc and the third disc, and a passage is provided between the third disc and the fourth disc.
[0014] Furthermore, the moving component also includes a second motor and a moving part, the moving part being connected to the second motor, and the moving part being provided with a buckle, the buckle cooperating with the first support member.
[0015] Furthermore, the movable component also includes a connector, a portion of which is movably abutted against the fourth bracket. One end of the connector is connected to the movable component, and the other end of the connector is provided with a fastening section. The fastening section is engaged with the connecting rod, and the connecting rod passes through the movable component and the connector, which are concentrically arranged, along the length direction.
[0016] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0017] (i) This utility model tooling, by setting up a fixing part and a detection part, can fix the stator while simultaneously detecting and feeding back the data generated after the mandrel is inserted into the inner cavity of the stator in real time, which facilitates the repair work by the operators.
[0018] (ii) By setting up a drive component and a moving component, this utility model can drive the mandrel to move and rotate synchronously in the stator through the connecting rod, which improves the degree of automation and effectively reduces the error caused by manual operation, thereby further improving the accuracy and quality of the stator. Attached Figure Description
[0019] Figure 1A schematic diagram of a stator inspection fixture according to an embodiment of the present invention is shown.
[0020] Figure 2 An enlarged view of the fixing part of a stator inspection fixture according to an embodiment of the present invention is shown.
[0021] Figure 3 This diagram shows an enlarged view of the detection section of a stator inspection fixture according to an embodiment of the present invention.
[0022] Figure 4 An enlarged view of the drive assembly of a stator inspection fixture according to an embodiment of the present invention is shown.
[0023] Figure 5 An enlarged structural view of the moving component of a stator inspection fixture according to an embodiment of the present invention is shown.
[0024] In the attached diagram, the following components are labeled: 1. Worktable; 2. Base; 3. Stator; 4. Core rod; 5. Fixing part; 501. First bracket; 5011. Orifice; 502. Positioning component; 6. Detection part; 601. Second bracket; 6011. Slot; 602. First sensor; 603. Second sensor; 604. Digital display component; 7. Drive assembly; 701. Third bracket; 702. First motor; 703. Connecting rod; 704. 8. Adapter; 8. Moving assembly; 801. Fourth bracket; 802. Fifth bracket; 803. Disc assembly; 8031. First disc; 8032. Second disc; 8033. Third disc; 8034. Fourth disc; 804. First support member; 805. Second support member; 806. STO; 807. Second motor; 808. Moving part; 8081. Buckle; 809. Connector; 8091. Fastening section. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of a stator inspection fixture proposed by this utility model is provided in conjunction with the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions. Terms such as "center," "side," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "side" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the stator inspection fixture or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model, but are only used to conveniently and clearly assist in explaining the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable.
[0026] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0027] The following describes the specific structure of a stator inspection fixture:
[0028] Please see Figure 1 , Figure 2 and Figure 3 The stator inspection fixture of this embodiment includes a workbench 1, a base 2, a stator 3, and a mandrel 4. The base 2 is mounted on the surface of the workbench 1, and the mandrel 4 is movably disposed within the stator 3. The fixture also includes a fixing part 5 and a detection part 6. The fixing part 5 and the detection part 6 are disposed at intervals on the base 2. Preferably, in this embodiment, three fixing parts 5 and three detection parts 6 are provided.
[0029] Furthermore, the fixing part 5 includes a first bracket 501, which is fixed to the surface of the base 2. The first bracket 501 has an opening 5011 along the length direction of the stator 3, and a positioning member 502 that can extend into the opening 5011 is also provided on the surface of the first bracket 501. When the stator 3 passes through the opening 5011, the stator 3 is fixed by the positioning member 502.
[0030] Furthermore, the detection unit 6 includes a second bracket 601, which is fixed to the surface of the base 2. The second bracket 601 is provided with a slot 6011, which is opened along the length direction of the stator 3 and is collinear with the center of the orifice 5011. The stator 3 is placed in the slot 6011.
[0031] Furthermore, the detection unit 6 also includes a first sensor 602, a second sensor 603, and a digital display 604. The first sensor 602 and the second sensor 603 are respectively disposed on both sides of the second bracket 601, and the digital display 604 is adjacent to the first sensor 602. Both the second sensor 603 and the digital display 604 can extend into the slot 6011, thereby performing real-time detection of the stator 3. Preferably, in this embodiment, the first sensor 602 is preferably a vibration sensor, used to test the amplitude generated by the mandrel 4 in the inner cavity of the stator 3; the digital display 604 is preferably a dial indicator, used to display the detected amplitude digitally; and the second sensor 603 is preferably a temperature sensor, used to detect the temperature rise on the surface of the stator 3 in real time.
[0032] Please continue reading. Figure 1 , Figure 4 and Figure 5 The tooling also includes a drive component 7 and a moving component 8. Both the drive component 7 and the moving component 8 are disposed on the base 2 and work together to make the mandrel 4 move relative to the stator 3.
[0033] Furthermore, the drive assembly 7 includes a third bracket 701 and a first motor 702, the third bracket 701 being fixed to the surface of the base 2, and the first motor 702 being fixed to the third bracket 701.
[0034] The drive assembly 7 further includes a connecting rod 703 and an adapter 704. One end of the adapter 704 is engaged with the first motor 702, and the other end of the adapter 704 is engaged with the connecting rod 703. The other end of the connecting rod 703 is connected to the core rod 4. Under the action of the first motor 702, the adapter 704 is driven to rotate, and the connecting rod 703 rotates with the rotation of the adapter 704. Preferably, the connecting rod 703 also has a travel range within the length of the adapter 704.
[0035] Furthermore, the movable component 8 includes a fourth support 801 and a fifth support 802, both of which are disposed on the surface of the base 2. A disc assembly 803, which is parallel to each other and perpendicular to the length direction of the base 2, is also disposed between the fourth support 801 and the fifth support 802.
[0036] Furthermore, the disc assembly 803 includes a first disc 8031, a second disc 8032, a third disc 8033, and a fourth disc 8034, which are concentrically arranged and sequentially along the length of the connecting rod 703. The first disc 8031 and the fourth disc 8034 are respectively fitted to the fourth bracket 801 and the fifth bracket 802. A first support member 804 is evenly disposed between the first disc 8031 and the second disc 8032, a second support member 805 is evenly disposed between the second disc 8032 and the third disc 8033, and a through-hole 806 is disposed between the third disc 8033 and the fourth disc 8034.
[0037] Furthermore, the moving component 8 also includes a second motor 807 and a moving part 808. The moving part 808 is connected to the second motor 807, and the moving part 808 is also provided with a buckle 8081, which cooperates with the first support member 804.
[0038] Furthermore, the movable component 8 also includes a connector 809. A portion of the connector 809 movably abuts against the fourth bracket 801. One end of the connector 809 is connected to the movable component 808, and the other end of the connector 809 is provided with a fastening section 8091. The fastening section 8091 cooperates with the connecting rod 703. The connecting rod 703 passes through the movable component 808 and the connector 809, which are concentrically arranged, along the length direction. The fastening section 8091 secures the connector 809 to the connecting rod 703. Thus, when the second motor 807 operates, the movable component 808, the connector 809, and the connecting rod 703 all move along the first support 804 under the action of the latch 8081. The movement of the connecting rod 703 then drives the core rod 4 to move and adjust relative to the stator 3.
[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A stator inspection fixture, comprising a worktable, a base, a stator, and a mandrel, wherein the base is mounted on the surface of the worktable, and the mandrel is movably disposed within the stator, characterized in that: The tooling also includes a fixing part and a detection part, which are spaced apart from each other on the base; the tooling also includes a driving component and a moving component, which are both disposed on the base and work together to make the mandrel move relative to the stator.
2. The stator inspection fixture as described in claim 1, characterized in that: The fixing part includes a first bracket, which is fixed to the surface of the base. The first bracket has an opening along the length direction of the stator. A positioning element that can extend into the opening is also provided on the surface of the first bracket.
3. The stator inspection fixture as described in claim 2, characterized in that: The detection unit includes a second bracket, which is fixed to the surface of the base. The second bracket has a slot, which is opened along the length direction of the stator and is collinear with the center of the orifice.
4. The stator inspection fixture as described in claim 3, characterized in that: The detection unit further includes a first sensor, a second sensor, and a digital display. The first sensor and the second sensor are respectively disposed on both sides of the second bracket. The digital display is adjacent to the first sensor. Both the second sensor and the digital display can extend into the slot.
5. The stator inspection fixture as described in claim 4, characterized in that: The drive assembly includes a third bracket and a first motor. The third bracket is fixed to the surface of the base, and the first motor is fixed to the third bracket.
6. The stator inspection fixture as described in claim 5, characterized in that: The drive assembly further includes a connecting rod and an adapter. One end of the adapter is engaged with the first motor, and the other end is engaged with the connecting rod. The other end of the connecting rod is connected to the core rod.
7. A stator inspection fixture as described in claim 6, characterized in that: The moving component includes a fourth support and a fifth support, both of which are disposed on the surface of the base. A disc assembly that is parallel to each other and perpendicular to the length direction of the base is also disposed between the fourth support and the fifth support.
8. The stator inspection fixture as described in claim 7, characterized in that: The disc assembly includes a first disc, a second disc, a third disc, and a fourth disc arranged concentrically and sequentially along the length of the connecting rod, wherein the first disc and the fourth disc are respectively fitted to the fourth bracket and the fifth bracket; a first support member is evenly arranged between the first disc and the second disc, a second support member is evenly arranged between the second disc and the third disc, and a passage is provided between the third disc and the fourth disc.
9. A stator inspection fixture as described in claim 8, characterized in that: The moving component also includes a second motor and a moving part, the moving part being connected to the second motor, and the moving part being provided with a buckle, the buckle cooperating with the first support member.
10. A stator inspection fixture as described in claim 9, characterized in that: The movable component further includes a connector, a portion of which is movably abutted against the fourth bracket. One end of the connector is connected to the movable component, and the other end of the connector is provided with a fastening section. The fastening section is engaged with the connecting rod, and the connecting rod passes through the movable component and the connector, which are concentrically arranged, along the length direction.