Motor stator weighing equipment

Abstract

The utility model discloses motor stator weighing equipment, and belongs to the technical field of weighing equipment. The connecting plate is connected with the rack through the lifting assembly, the fixing plate is movably connected with the connecting plate and is separated from the electronic scale, and the stator tool can be installed on the fixing plate. Thus, before the motor stator is weighed, the connecting plate, the fixing plate and the stator tool are jacked to a certain position away from the electronic scale through the lifting assembly, and the motor stator before / after painting is placed on the stator tool. Therefore, the electronic scale can be prevented from being impacted when the motor stator is placed on the stator tool, and the electronic scale is prevented from being damaged. Afterwards, the connecting plate, the fixing plate and the stator tool are lowered through the lifting assembly until the fixing plate makes contact with the electronic scale through the hollowed-out area, the connecting plate is continuously driven to descend to be separated from the fixing plate, and the weight of the motor stator before / after painting is measured through the electronic scale. Thus, the fixing plate can slowly move to the electronic scale, data fluctuation of the electronic scale is reduced, and the measurement precision of the electronic scale is improved.

Description

Technical Field

[0001] This application relates to the field of weighing equipment technology, and in particular to a motor stator weighing device. Background Technology

[0002] In the production process of new energy motor stators, it is necessary to weigh the motor stators before and after coating to verify whether the coating amount meets the standards. Each coating application involves approximately 50g of stator material, and the coating accuracy must be controlled within ±1g, meaning the repeatability of the electronic scale must be below 1g. Currently, electronic scales are generally used for weighing motor stators in production. To ensure accurate weighing, the scales must be free from static electricity, vibration, and magnetic fields, and high temperatures must be avoided from affecting their accuracy. Currently, the fixture used to support the motor stator is directly fixed to the electronic scale. However, during the weighing process, the stator, still hot from the coating application (temperature 180℃), needs to be placed on the fixture. This heat is easily conducted to the electronic scale, posing a risk of damaging the weighing equipment over time and reducing weighing accuracy.

[0003] Therefore, there is an urgent need for a weighing device that provides stable and accurate measurement and weighing of motor stators. Utility Model Content

[0004] This application provides a motor stator weighing device. It solves the problem in the prior art of needing a weighing device that provides stable and accurate weighing of motor stators. The technical solution is as follows:

[0005] On the one hand, a motor stator weighing device is provided, which includes: a frame, an electronic scale, a connecting plate, a fixing plate, a lifting assembly, and a stator fixture;

[0006] Both the electronic scale and the lifting assembly are mounted on the top of the frame;

[0007] The connecting plate is connected to the lifting end of the lifting assembly, and the connecting plate has a hollow area corresponding to the electronic scale;

[0008] The fixing plate is located on the side of the connecting plate away from the frame, and the fixing plate is movably connected to the connecting plate. The stator fixture is installed on the side of the fixing plate away from the connecting plate, and the stator fixture is used to fix the motor stator.

[0009] The lifting assembly is configured to: drive the connecting plate, the fixing plate, and the stator fixture to move simultaneously in a direction away from the frame until the fixing plate separates from the electronic scale; and after the motor stator is fixed to the stator fixture, drive the connecting plate, the fixing plate, and the stator fixture to move simultaneously in a direction close to the frame until the bottom surface of the fixing plate contacts the electronic scale, and then continue to drive the connecting plate to separate from the fixing plate.

[0010] Optionally, the connecting plate has a positioning element on the side facing the fixing plate, and the fixing plate has a positioning hole that slides with the positioning element;

[0011] During the simultaneous movement of the connecting plate, the fixing plate, and the stator fixture away from the frame, a portion of the positioning member is located within the positioning hole; after the connecting plate separates from the fixing plate, the positioning member slides out from the positioning hole.

[0012] Optionally, the side of the positioning member includes: two sets of mounting surfaces arranged opposite to each other, each set of mounting surfaces having two inclined surfaces arranged opposite to each other, and a cylindrical surface located between the two inclined surfaces, wherein a rounded corner is provided between the cylindrical surface and the top surface of the positioning member;

[0013] The angle between the two inclined planes is an acute angle, and the angle between two adjacent inclined planes in the two sets of mounting surfaces is an obtuse angle.

[0014] Optionally, the weighing device further includes a wear-resistant ring, which is interference-fitted with the positioning hole.

[0015] Optionally, the stator fixture includes: a base plate and a fixture frame, wherein the base plate is fastened to the side of the fixed plate opposite to the frame, and the fixture frame is fastened to the side of the base plate opposite to the fixed plate;

[0016] The tooling frame has a V-shaped clamping groove for fixing the motor stator and a limiting baffle fixed to one side of the V-shaped clamping groove of the tooling frame.

[0017] Optionally, the stator fixture may further include a heat-insulating film layer fixed on the groove wall in the V-shaped clamping groove.

[0018] Optionally, the base plate is a plate-shaped structure made of heat-resistant material.

[0019] Optionally, the weighing device further includes: a position sensor mounted on the connecting plate, the position sensor being electrically connected to the lifting assembly, and the position sensor being used to detect the distance between the connecting plate and the fixed plate.

[0020] Optionally, the weighing device further includes: a telescopic drive component fixed to the side of the connecting plate away from the frame and located on the side of the tooling frame away from the limiting baffle, the telescopic drive component having a telescopic rod;

[0021] The telescopic drive component is configured to drive the motor stator to move along the direction close to the limiting baffle via the telescopic rod to contact the limiting baffle.

[0022] Optionally, the weighing device further includes: a hydraulic buffer disposed on the connecting plate, and a support block disposed on the frame, the support block being disposed opposite to the hydraulic buffer.

[0023] The beneficial effects of the technical solutions provided in this application include at least the following:

[0024] A motor stator weighing device may include: a frame, an electronic scale, a connecting plate, a fixed plate, a lifting assembly, and a stator fixture. The connecting plate is connected to the frame via the lifting assembly. The fixed plate is movably connected to the connecting plate and is separate from the electronic scale. The stator fixture can be mounted on the fixed plate. Before weighing the motor stator, the lifting assembly raises the connecting plate, fixed plate, and stator fixture to a position above the electronic scale. A robotic arm or manual operation places the motor stator, before / after coating, onto the stator fixture. This avoids impacting the electronic scale when the motor stator is placed onto the stator fixture, preventing damage. Then, the lifting assembly lowers the connecting plate, fixed plate, and stator fixture until the fixed plate contacts the electronic scale through a perforated area in the connecting plate. The connecting plate continues to descend, separating from the fixed plate, and the electronic scale measures the weight of the motor stator before / after coating. This allows the fixed plate to move slowly onto the electronic scale, reducing data fluctuations and improving measurement accuracy. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0026] Figure 1 This is a schematic diagram of the structure of a motor stator weighing device provided in an embodiment of this application;

[0027] Figure 2 yes Figure 1 The image shows a front view of the motor stator weighing device;

[0028] Figure 3This is a schematic diagram of another motor stator weighing device provided in an embodiment of this application;

[0029] Figure 4 yes Figure 3 The diagram shown is an exploded view of part of the structure of the motor stator weighing device;

[0030] Figure 5 yes Figure 3 The image shows a top view of the motor stator weighing device.

[0031] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0035] Please refer to Figure 1 and Figure 2 , Figure 1 This is a structural schematic diagram of a motor stator weighing device provided in an embodiment of this application. Figure 2 yes Figure 1 The diagram shows a front view of a motor stator weighing device. The motor stator weighing device may include: a frame 100, an electronic scale 200, a connecting plate 300, a fixing plate 400, a lifting assembly 500, and a stator fixture 600.

[0036] The electronic scale 200 and the lifting assembly 500 in the motor stator weighing equipment can both be installed and fixed on the top of the frame 100.

[0037] The connecting plate 300 in the motor stator weighing device can be connected to the lifting end of the lifting assembly 500. The connecting plate 300 can have a hollow area 301 corresponding to the electronic scale 200, meaning the electronic scale 200 can be exposed through the hollow area 301 in the connecting plate 300. For example, the lifting assembly 500 can include a lifting drive component 501 and a guide component 502. The lifting drive component 501 can have a lifting end, and both ends of the guide component 502 can be connected to the connecting plate 300 and the frame 100 respectively. Thus, during the process of driving the connecting plate 300 to rise and fall via the lifting drive component 501, it can be moved and guided by the guide component 502. For example, the lifting drive component 501 can be a telescopic cylinder or a telescopic electric cylinder, and the guide component 502 can be a linear bearing.

[0038] The fixing plate 400 in the motor stator weighing device can be located on the side of the connecting plate 300 away from the frame 100, and the fixing plate 400 can be movably connected to the connecting plate 300. A stator fixture 600 can be installed on the side of the fixing plate 400 away from the connecting plate 300, which can be used to fix the motor stator A.

[0039] The lifting assembly 500 can be configured such that: the driving connecting plate 300, the fixed plate 400, and the stator fixture 600 simultaneously move in a direction away from the frame 100 until the fixed plate 400 separates from the electronic scale 200; and after the motor stator A is fixed to the stator fixture 600, the driving connecting plate 300, the fixed plate 400, and the stator fixture 600 simultaneously move in a direction close to the frame 100 until the bottom surface of the fixed plate 400 contacts the electronic scale 200, and then the driving connecting plate 300 continues to separate from the fixed plate 400. Here, during the process of the lifting assembly 500 driving the connecting plate 300 to rise, the connecting plate 300 can support the fixed plate 400 and the stator fixture 600 to rise synchronously; during the process of the lifting assembly 500 driving the connecting plate 300 to fall, before the bottom surface of the fixed plate 400 contacts the electronic scale 200, the connecting plate 300 supports the fixed plate 400 and the stator fixture 600 to fall synchronously.

[0040] In this embodiment, the connecting plate 300 of the motor stator weighing device is connected to the frame 100 via a lifting assembly 500. The fixed plate 400 is movably connected to the connecting plate 300 and is separately disposed from the electronic scale 200. The stator fixture 600 can be mounted on the fixed plate 400. Thus, before weighing the motor stator A, the lifting assembly 500 lifts the connecting plate 300, the fixed plate 400, and the stator fixture 600 to a certain position above the electronic scale 200. A robotic arm or manual labor then places the motor stator A (before painting) onto the stator fixture 600. This avoids impacting the electronic scale 200 during the placement of the motor stator A onto the stator fixture 600, preventing damage to the electronic scale 200. Subsequently, the connecting plate 300, the fixing plate 400, and the stator fixture 600 are lowered by the lifting assembly 500 until the fixing plate 400 contacts the electronic scale 200 through the hollow area 300 in the connecting plate 300. The connecting plate 300 continues to descend and separate from the fixing plate 400, and the weight of the motor stator A before coating is measured by the electronic scale 200. This allows the fixing plate 400 to move slowly onto the electronic scale 200, reducing data fluctuations on the electronic scale and improving its measurement accuracy.

[0041] It should be noted that after the motor stator A is coated with paint, the above steps are repeated to weigh it again, thereby obtaining the amount of paint coated on the motor stator A, so as to evaluate the coating quality of the motor stator A.

[0042] In summary, this application provides a motor stator weighing device, which may include: a frame, an electronic scale, a connecting plate, a fixed plate, a lifting assembly, and a stator fixture. The connecting plate in the motor stator weighing device is connected to the frame via the lifting assembly. The fixed plate is movably connected to the connecting plate and is separately disposed from the electronic scale, and the stator fixture can be mounted on the fixed plate. Thus, before weighing the motor stator, the lifting assembly lifts the connecting plate, the fixed plate, and the stator fixture to a position a certain distance from the electronic scale. A robotic arm or manual labor then places the motor stator, before coating, onto the stator fixture. This avoids impacting the electronic scale when the motor stator is placed onto the stator fixture, preventing damage to the scale. Subsequently, the lifting assembly lowers the connecting plate, the fixed plate, and the stator fixture until the fixed plate contacts the electronic scale through a hollow area in the connecting plate. The connecting plate continues to descend and separate from the fixed plate, and the weight of the motor stator before coating is measured by the electronic scale. This allows the fixed plate to move slowly onto the electronic scale, reducing data fluctuations and improving the measurement accuracy of the electronic scale.

[0043] In the embodiments of this application, please refer to Figure 3 , Figure 3This is a schematic diagram of another motor stator weighing device provided in an embodiment of this application. The motor stator weighing device may further include a position sensor 700 mounted on the connecting plate 300, which is electrically connected to the lifting assembly 500. The position sensor 700 can be used to detect a first preset distance between the connecting plate 300 and the fixed plate 400. Thus, when the distance between the connecting plate 300 and the fixed plate 400 reaches the first preset distance, a signal can be sent to the lifting assembly 500, and the lifting assembly 500 stops descending based on the signal. It should be noted that during the process of the lifting assembly 500 driving the connecting plate 300 to rise, when the position sensor 700 detects that the distance between the connecting plate 300 and the fixed plate 400 meets a second preset distance, the lifting assembly 500 drives the connecting plate 300 and the fixed plate 400 to rise rapidly based on this signal.

[0044] Optional, please refer to Figure 3 , Figure 4 and Figure 5 , Figure 4 yes Figure 3 The diagram shown is an exploded view of part of the structure of the motor stator weighing device. Figure 5 yes Figure 3 The diagram shows a top view of a motor stator weighing device. The connecting plate 300 in the motor stator weighing device may have a positioning element 302 on the side facing the fixed plate 400, and the fixed plate 400 may have a positioning hole 401 that slides with the positioning element 302. During the simultaneous movement of the connecting plate 300, the fixed plate 400, and the stator fixture 600 away from the frame 100, a portion of the positioning element 302 may be located within the positioning hole 401. After the connecting plate 300 separates from the fixed plate 400, the positioning element 302 can slide out of the positioning hole 401. In this case, the positioning element 302 is provided on the side of the connecting plate 300 facing the fixed plate 400, and the positioning hole 401 on the fixed plate 400 engages with the positioning element 302. Thus, the cooperation between the positioning element 302 and the positioning hole 401 ensures the installation accuracy of the connecting plate 300 and the fixed plate 400. Furthermore, during the lifting process driven by the lifting assembly 500, the relative positions of the connecting plate 300 and the fixed plate 400 remain unchanged, thereby ensuring the accuracy of the electronic scale 200 in measuring the weight of the motor stator A placed on the stator fixture 600. Here, the positioning element 302 slides out from the positioning hole 401, making its upper surface flush with the lower opening surface of the positioning hole 401.

[0045] In the embodiments of this application, such as Figure 4 and Figure 5As shown, the side surface of the positioning member 302 may include: two sets of mounting surfaces m arranged opposite each other, each set of mounting surfaces m may have two inclined surfaces m1 arranged opposite each other, and a cylindrical surface m2 located between the two inclined surfaces m1, with a rounded corner between the cylindrical surface m2 and the top surface m3 of the positioning member 302. The included angle between the two inclined surfaces m1 in each set of mounting surfaces m can be an acute angle, and the included angle between two adjacent inclined surfaces m1 in the two sets of mounting surfaces m can be an obtuse angle. Thus, by setting two sets of mounting surfaces m of the same shape opposite each other on the side surface of the positioning member 302, and each set of mounting surfaces m having two inclined surfaces m1 and one cylindrical surface m2, with a rounded corner between the cylindrical surface m2 and the top surface m3 of the positioning member 302, the shape design of the positioning member 302 allows for convenient installation of the fixing plate 400 and the connecting plate 300 through the positioning holes 401 and the positioning member 302, while reducing cumulative installation errors.

[0046] Optional, such as Figure 3 , Figure 4 and Figure 5 As shown, the motor stator weighing device may further include a wear ring 800, which can be interference-fitted with the positioning hole 401. In this case, by setting the wear ring 800 in the positioning hole 401 and slidingly engaging with the positioning element 302, the sliding fit accuracy between the positioning element 302 and the positioning hole 401 can still be guaranteed after multiple uses, thus improving the service life of the device. For example, the wear ring 800 can be a structure made of materials such as rubber.

[0047] In the embodiments of this application, such as Figure 3As shown, the stator fixture 600 may include a base plate 601 and a fixture frame 602. The base plate 601 can be fastened to the side of the fixing plate 400 away from the frame 100, and the fixture frame 602 can be fastened to the side of the base plate 601 away from the fixing plate 400. The fixture frame 602 may have a V-shaped clamping groove for fixing the motor stator A, and a limiting baffle fixed to one side of the V-shaped clamping groove in the fixture frame 602. In this way, by setting a base plate 601 and a fixture frame 602 in the stator fixture 600, and connecting the fixture frame 602 to the fixed plate 400 through the base plate 601, after the motor stator A is placed in the V-shaped clamping groove in the fixture frame 600, the fixture frame 602, the base plate 601, and the fixed plate 400 are distributed between the motor stator A and the electronic scale 200. This minimizes the heat transfer from the residual heat of the motor stator A after painting in the automated production line to the electronic scale 200, ensuring better measurement accuracy of the electronic scale 200. In addition, by setting a limiting baffle 603 on one side of the V-shaped clamping groove of the fixture frame 602, and ensuring that the flat wire stator motor stator A can contact the limiting baffle 603 after being placed in the V-shaped clamping groove, the flat wire stator motor stator A can be placed in the same position each time it is placed in the V-shaped clamping groove, minimizing the influence of external factors on the weighing measurement of the flat wire stator motor stator. Furthermore, the limiting baffle 603 can limit the stator A of the flat wire stator motor to prevent it from detaching from the tooling frame 602.

[0048] For example, the included angle between two oppositely arranged sidewalls in the V-shaped groove can range from 60 degrees to 90 degrees. For instance, the included angle between two oppositely arranged sidewalls in the V-shaped groove can be 60 degrees, 80 degrees, or 90 degrees, etc.

[0049] Optionally, the stator fixture 600 may further include a heat-insulating film layer (not shown) fixed to the groove wall of the V-shaped clamping groove in the fixture frame 602. Thus, by providing a heat-insulating film layer on the groove wall of the V-shaped clamping groove in the fixture frame 602, heat from the preheated motor stator A can be further prevented from being conducted to the electronic scale 200. For example, the heat-insulating film layer may be a film structure made of polyimide.

[0050] In this application, the base plate 601 in the stator fixture 600 can be a plate-like structure made of heat-resistant material. For example, the base plate 601 can be a plate made of polystyrene (PS) or an asbestos board, etc.

[0051] Optional, such as Figure 3 and Figure 5As shown, the motor stator weighing device may further include a telescopic drive component 900 fixed to the side of the connecting plate 300 away from the frame 100 and located on the side of the tooling frame 602 away from the limiting baffle 603. The telescopic drive component 900 may have a telescopic rod 901. The telescopic drive component 900 can be configured to drive the motor stator A to move towards the limiting baffle 603 via the telescopic rod 901 to contact the limiting baffle 603. Thus, by installing the telescopic drive component 900 on the connecting plate 300, after the motor stator A is placed into the V-shaped clamping groove in the tooling frame 602, the telescopic drive component 900 can push the motor stator A within the V-shaped clamping groove via the telescopic rod 901 to push the motor stator A to contact the limiting baffle 603. This improves the automation level of motor stator position adjustment and enhances the user experience of the motor stator weighing device. It should be noted that different specifications of telescopic rods 901 can be used to accommodate different specifications of motor stators.

[0052] In this application, as Figure 3 and Figure 5 As shown, the motor stator weighing device may further include: a first position sensor 1000 installed on the side of the connecting plate 300 away from the frame 100 and distributed on the side of the telescopic rod 901. The first position sensor 1000 can be electrically connected to the telescopic drive member 900. The first position sensor 1000 is used to detect the extension of the telescopic rod 901 to a preset position. Upon receiving a signal from the first position sensor 1000, the telescopic drive member 900 controls the telescopic rod 901 to stop moving. For example, the first position sensor 1000 can be a proximity sensor.

[0053] Optional, such as Figure 3 As shown, the motor stator weighing device may further include: a hydraulic buffer 1100 disposed on the connecting plate 300, and a support block 1200 disposed on the frame 100, the support block 1200 being disposed opposite to the hydraulic buffer 1100. Thus, by cooperating with the support block 1200, the hydraulic buffer can slow down the descent rate of the connecting plate 300, reduce the impact on the motor stator weighing device, and ensure the operational stability of the device.

[0054] In the embodiments of this application, such as Figure 3 As shown, the motor stator weighing device may further include a barcode scanning component 1300, which is mounted on the frame 100 and can be used to identify the code of motor stator A and record the weight information of different motor stators A. This further improves the automation level of the motor stator weighing device, realizing the function of measuring and recording the weight of motor stators A.

[0055] Optional, such as Figure 3As shown, the motor stator weighing device may further include: a plurality of adjustable casters 1400 installed at the corners of the bottom of the frame 100, which can be used to level the frame 100 to ensure the weighing measurement accuracy of the electronic scale 200.

[0056] In summary, this application provides a motor stator weighing device, which may include: a frame, an electronic scale, a connecting plate, a fixed plate, a lifting assembly, and a stator fixture. The connecting plate in the motor stator weighing device is connected to the frame via the lifting assembly. The fixed plate is movably connected to the connecting plate and is separately disposed from the electronic scale. The stator fixture can be mounted on the fixed plate. Thus, before weighing the motor stator, the lifting assembly lifts the connecting plate, the fixed plate, and the stator fixture to a position above the electronic scale. A robotic arm or manual labor places the motor stator, before and after painting, onto the stator fixture. This avoids impacting the electronic scale when the motor stator is placed onto the stator fixture, preventing damage to the electronic scale. Then, the lifting assembly lowers the connecting plate, the fixed plate, and the stator fixture until the fixed plate contacts the electronic scale through a hollow area in the connecting plate. The connecting plate continues to descend and separate from the fixed plate, and the electronic scale measures the weight of the motor stator before and after painting. This allows the fixing plate to move slowly onto the electronic scale, reducing data fluctuations and improving the measurement accuracy of the electronic scale.

[0057] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0058] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A motor stator weighing device, characterized in that, include: Frame, electronic scale, connecting plate, fixing plate, lifting assembly and stator fixture; Both the electronic scale and the lifting assembly are mounted on the top of the frame; The connecting plate is connected to the lifting end of the lifting assembly, and the connecting plate has a hollow area corresponding to the electronic scale; The fixing plate is located on the side of the connecting plate away from the frame, and the fixing plate is movably connected to the connecting plate. The stator fixture is installed on the side of the fixing plate away from the connecting plate, and the stator fixture is used to fix the motor stator. The lifting assembly is configured to: drive the connecting plate, the fixing plate, and the stator fixture to move simultaneously in a direction away from the frame until the fixing plate separates from the electronic scale; and after the motor stator is fixed to the stator fixture, drive the connecting plate, the fixing plate, and the stator fixture to move simultaneously in a direction close to the frame until the bottom surface of the fixing plate contacts the electronic scale, and then continue to drive the connecting plate to separate from the fixing plate.

2. The motor stator weighing device according to claim 1, characterized in that, The connecting plate has a positioning element on the side facing the fixing plate, and the fixing plate has a positioning hole that slides with the positioning element; During the simultaneous movement of the connecting plate, the fixing plate, and the stator fixture away from the frame, a portion of the positioning member is located within the positioning hole; after the connecting plate separates from the fixing plate, the positioning member slides out from the positioning hole.

3. The motor stator weighing device according to claim 2, characterized in that, The side of the positioning member includes: two sets of mounting surfaces arranged opposite to each other, each set of mounting surfaces having two inclined surfaces arranged opposite to each other, and a cylindrical surface located between the two inclined surfaces, and a rounded corner is provided between the cylindrical surface and the top surface of the positioning member; The angle between the two inclined planes is an acute angle, and the angle between two adjacent inclined planes in the two sets of mounting surfaces is an obtuse angle.

4. The motor stator weighing device according to claim 2, characterized in that, The weighing device further includes a wear-resistant ring, which is interference-fitted with the positioning hole.

5. The motor stator weighing device according to any one of claims 1-4, characterized in that, The stator fixture includes a base plate and a fixture frame. The base plate is fastened to the side of the fixed plate opposite to the frame, and the fixture frame is fastened to the side of the base plate opposite to the fixed plate. The tooling frame has a V-shaped clamping groove for fixing the motor stator and a limiting baffle fixed to one side of the V-shaped clamping groove of the tooling frame.

6. The motor stator weighing device according to claim 5, characterized in that, The stator fixture also includes a heat insulation film layer fixed on the groove wall in the V-shaped clamping groove.

7. The motor stator weighing device according to claim 5, characterized in that, The base plate is a plate-shaped structure made of heat-insulating material.

8. The motor stator weighing device according to claim 5, characterized in that, The weighing device further includes: a position sensor mounted on the connecting plate, the position sensor being electrically connected to the lifting assembly, and the position sensor being used to detect a preset distance between the connecting plate and the fixed plate.

9. The motor stator weighing device according to claim 5, characterized in that, The weighing equipment further includes: a telescopic drive component fixed to the side of the connecting plate away from the frame and located on the side of the tooling frame away from the limiting baffle, the telescopic drive component having a telescopic rod; The telescopic drive component is configured to drive the motor stator to move along the direction close to the limiting baffle via the telescopic rod to contact the limiting baffle.

10. The motor stator weighing device according to any one of claims 1-4 and 6-9, characterized in that, The weighing device further includes: a hydraulic buffer disposed on the connecting plate, and a support block disposed on the frame, the support block being disposed opposite to the hydraulic buffer.

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