CN221550800U

CN221550800U - Stator resistance testing device

Info

Publication number: CN221550800U
Application number: CN202323199302.XU
Authority: CN
Inventors: 叶国强; 梅志宏; 杨宁玺; 梅表天
Original assignee: Juli Aoxuan Technology Zhejiang Co ltd
Current assignee: Juli Aoxuan Technology Zhejiang Co ltd
Priority date: 2023-11-27
Filing date: 2023-11-27
Publication date: 2024-08-16
Anticipated expiration: 2033-11-27

Abstract

The utility model provides a stator resistance testing device, which comprises a turntable tool, wherein a stator is arranged at the top of the turntable tool, a stator welding point and a power strip are arranged in the circumferential direction of the stator, a correction tool is arranged on the outer surface of the stator, a first probe detection assembly is arranged on the periphery of the correction tool, the first probe detection assembly corresponds to the stator welding point, an inspection tool is arranged above the stator, the inspection tool is arranged below a pressing plate, a plurality of power strip holes are formed in the pressing plate, the power strip holes correspond to the power strip, and a second probe detection assembly is arranged above the power strip. The voltage and the current are respectively measured through the first probe detection assembly and the second probe detection assembly, and the resistance is measured through the four-wire method by the instrument, so that the accuracy of the actual resistance value of the resistance welding position is greatly improved.

Description

Stator resistance testing device

Technical Field

The utility model relates to the field of resistance testing, in particular to a stator resistance testing device.

Background

The stator is an important component of the motor or the generator, the performance of the stator often directly influences the quality of the motor and the generator, the stator resistance is very critical as an important index for measuring the quality of the stator, and the stator resistance is often not accurately tested in the prior art. The chinese patent document with publication number CN218633628U discloses an apparatus for winding, tin dipping and resistance testing of motor stator leads, comprising: the device comprises a rack, wherein a rotating disc for correspondingly rotating a motor stator from a feeding station, a wire twisting and cutting station, a tin dipping station and a resistance testing station to the next station is rotatably arranged on the rack, and a wire twisting mechanism for mutually winding a plurality of leads on the motor stator into a lead group and a cutting mechanism for trimming the lead group are arranged at the wire twisting and cutting station; the tin-dipping station is provided with a tin-dipping mechanism for carrying out tin-dipping operation on the lead group on the motor stator; and the resistance test station is provided with a resistance test mechanism for testing the resistance of the lead group on the motor stator.

Disclosure of utility model

In order to solve the problems mentioned in the background, the utility model provides a stator resistance testing device, which ensures the accuracy and efficiency of stator resistance testing.

The technical scheme of the utility model is as follows:

The utility model provides a stator resistance testing arrangement, includes carousel frock, the stator has been placed at carousel frock top, be equipped with stator welding point and row of inserting in the stator circumference direction, the stator surface is equipped with correction frock, be equipped with first probe detection subassembly on the correction frock periphery, first probe detection subassembly is corresponding with the stator welding point, inspection frock is installed to the stator top, inspection frock is installed under the clamp plate, the clamp plate is equipped with a plurality of row's of inserting hole, row's of inserting hole is corresponding with row of inserting, row's of inserting top is equipped with second probe detection subassembly. The voltage and the current are respectively measured through the first probe detection assembly and the second probe detection assembly, the resistance is measured through the four-wire method by the instrument, the accuracy of the actual resistance value of the resistance welding part is greatly improved, the detection piece is in direct contact with the stator, and the detection data can be collected in the first time.

Preferably, the turntable tool is arranged on the dividing plate, the dividing plate is embedded in the workbench, a gearbox is arranged below the dividing plate and located at the center of the dividing plate, the gearbox is arranged on the mounting plate, a groove is formed in one end of the mounting plate, a fixing rod is arranged on the mounting plate to be connected with the workbench, a driving motor is arranged below the gearbox, and a connecting plate is arranged on the side edge of the driving motor and connected with the gearbox. The turntable tool rotates along with the index plate, the stator to be detected is arranged on the turntable tool, the detection efficiency is improved, the index plate rotates after the stator on one turntable tool is detected, the turntable tool to be detected reaches the detection point, and the efficiency of detecting the stator resistance is improved. The gearbox can control the rotation speed of the dividing plate.

Preferably, the backing plate is arranged above the second probe detection assembly, the test mounting plate is arranged above the backing plate, the right-angle mounting seat is arranged on the test mounting plate, the first probe detection assembly is fixed on the right-angle mounting seat, the top plate is arranged above the test mounting plate, the test plugging assembly and the air source quick-change assembly are arranged on one side of the top plate, the mounting rod is arranged on the other side of the top plate, the mounting rod penetrates through the workbench and is connected with the air cylinder support seat, and the air cylinder support seat is provided with an air cylinder. The test plug assembly can test and detect the butt joint, and the quick-change assembly of the air source realizes the quick-change of tools required by welding different stators.

Preferably, a turntable limiting mechanism is arranged at the junction of the workbench and the dividing plate, the turntable limiting mechanism comprises a cam mounting plate, the cam mounting plate is in threaded connection with the workbench, cam followers are arranged on two sides of the cam mounting plate, and a fixed shaft is arranged on the central axis of the cam mounting plate. The turntable limiting mechanism is used for preventing the dividing plate from deformation after jacking and enabling the dividing plate to be more stable when rotating.

Preferably, the turntable tool comprises a turntable tool main body, a rotating mechanism is arranged below the turntable tool main body, a rotating shaft is arranged inside the rotating mechanism, a tensioning shaft is arranged inside the turntable tool main body, one end of the tensioning shaft is provided with a load block, the other end of the tensioning shaft is connected with the rotating shaft, an inner positioning ring is arranged above the load block, a stator is arranged above the inner positioning ring, and a spring limiting assembly is arranged on the outer surface of the turntable tool main body corresponding to the load block. The load piece improves the holistic weight of carousel frock and makes carousel frock fix more stable on the graduated disk.

Preferably, the tensioning shaft is provided with a fixing sleeve at one side close to the rotating mechanism, a gasket is arranged above the fixing sleeve, and a spring is wound on the tensioning shaft above the gasket.

As the preference, the spacing subassembly of spring includes the exchange ring, be equipped with the hole of symmetry on the exchange ring circumferencial direction, be equipped with the cylindric lock of vertical placing on the exchange ring, both ends and exchange ring parallel and level about the cylindric lock, cylindric lock is along exchange ring circumference evenly distributed, the cylindric lock lower extreme is connected with compression spring, exchange ring both sides are equipped with the guard bar of symmetry, the guard bar top is equipped with the stopper, the stopper is pressed on the clamp plate.

Preferably, symmetrical limiting grooves are formed in the upper end of the turntable tool main body, and the limiting grooves correspond to the guard bars. Defining the position of the turret tooling prevents the stator from shifting.

The utility model has the advantages of improving the efficiency and accuracy of stator detection, ensuring more stable stator fixation, having various functions of the whole device, and being capable of testing not only the stator resistance but also the connector. The whole device has stable structure, firm connection and high working efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a turntable tooling of the present utility model.

Fig. 2 is a schematic cross-sectional view of the turntable tooling of the present utility model.

Fig. 3 is a schematic diagram of the position of the stator in the turntable tooling of the present utility model.

Fig. 4 is a schematic top view of the device of the present utility model.

Fig. 5 is an enlarged schematic diagram corresponding to the enlarged schematic symbol a in fig. 4.

Fig. 6 is a schematic front view of the device of the present utility model.

Fig. 7 is a schematic bottom view of the device of the present utility model.

Fig. 8 is a schematic left-hand view of the device of the present utility model.

Fig. 9 is a right side schematic view of the device of the present utility model.

Fig. 10 is an enlarged schematic diagram corresponding to the enlarged schematic symbol B in fig. 9.

FIG. 11 is a schematic front view of the spring stop assembly of the present utility model.

FIG. 12 is a side view schematic of the spring stop assembly of the present utility model.

In the figure: 1. the tool comprises a tool body, 102, a rotary mechanism, 2, a correction tool, 3, a checking tool, 4, a first probe detection assembly, 5, a second probe detection assembly, 6, a pressing plate, 7, a pin row, 8, an index plate, 9, a workbench, 10, a gearbox, 11, a mounting plate, 12, a fixing rod, 13, a driving motor, 14, a connecting plate, 15, a backing plate, 16, a test mounting plate, 17, a right angle mounting seat, 18, a top plate, 19, a test plug assembly, 20, a gas source quick-change assembly, 21, a mounting rod, 22, a cylinder support seat, 23, a cylinder, 24, a groove, 25, a rotary table limit mechanism, 26, a cam mounting plate, 27, a cam follower, 28, a fixed shaft, 29, a rotary shaft, 30, a tensioning shaft, 31, a load weight, 32, an inner positioning ring, 33, a spring limit assembly, 3301, a exchanging ring, 3302, a protection rod, 34, a fixing sleeve, 35, a spring, 37, a hole, 38, a cylindrical pin, 39, a compression spring, 40, a limit block, 41, a groove, a pin, a 43, a fixing seat, a bolt, a guide mark, a map, and a map.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

The utility model provides a stator resistance testing device as shown in fig. 1 to 12, which has the advantages of simple testing, high efficiency and stable structure. The stator resistance testing device mainly comprises the following parts. The first part is the most critical part, namely the turntable fixture 1 with the stator 43, the second part is the detection part for testing the resistance of the stator 43, the first probe detection assembly 4 and the second probe detection assembly 5 are the most central parts of the detection part, and the third part is the index plate 8 and the workbench 9 for placing the turntable fixture 1. Regarding the turntable fixture 1, the turntable fixture comprises a turntable fixture body 101 and a rotating mechanism 102 which is contacted with the index plate 8 and drives the turntable fixture 1 to rotate along with the rotation of the index plate 8. The rotary mechanism 102 is located at the lower part of the turntable tooling 1, and besides the turntable tooling main body 101, the upper part of the turntable tooling 1 is also provided with a spring limiting assembly 33 wrapped on the outer surface of the turntable tooling main body 101, and the spring limiting assembly is used for limiting the position of the turntable tooling main body 101 so that the position of the turntable tooling main body 101 does not deviate along with the rotation of the index plate 8, thereby influencing the subsequent measurement of stator resistance. The stator 43 is placed in the turntable tool main body 101, in order to make measurement more convenient and accurate, and to process welding points and circuits of the stator 43, the correction tool 2 is additionally arranged on the outer surface of the turntable tool main body, so that the first probe detection assembly 4 can detect the welding points and circuits more conveniently, meanwhile, in order to cover the detection on the stator 43 as much as possible, the inspection tool 3 is arranged above the stator 43, in practical cases, two parallel probes are arranged on the first probe detection assembly 4, one probe is arranged below the first probe detection assembly, the probes below the first probe detection assembly 4 are propped against the position of the correction tool 2, the positions correspond to the positions of the welding points 44 of the stator, The probe below the first probe detection assembly 4 can better detect the stator welding point 44 by correcting the tool 2, and the position where the probe above is propped against is the inspection tool 3. As can be seen from fig. 3, the stator 43 is provided with three power strip 42 on one side and a stator welding point 44 on the side of the power strip 42, the power strip 42 is higher than the stator 43, the three power strips 42 are connected together by a bracket so as to measure and calculate the data, and therefore, the inspection tool 3 is installed above the stator 43, and the position of the inspection tool 3 against which the probe above the first probe detection assembly 4 abuts is exactly the position of the bracket connected between the three power strips 42. As can be seen from fig. 3, since there are three power strip 42 and three corresponding stator welding points 44, in the present embodiment of the utility model, three sets of first probe detection assemblies 4 are provided, and the positions of the calibration fixture 2 against which the three sets of first probe detection assemblies 4 abut exactly correspond to the three stator welding points 44. Because of the height problem of the power strip 42, the power strip holes 7 are formed in the pressing plate 6 at the top of the turntable fixture 1, and it is to be noted that, as can be seen from fig. 1, the three power strip holes 7 corresponding to the three power strips 42 are not all formed in the pressing plate 6, and one power strip hole is formed in the inspection fixture 3 and the other two power strip holes are formed in the pressing plate 6 due to the positional relationship of the power strip 42 on the stator 43. The function of the pressing plate 6 is to fix the inspection tool 3 on the stator 43, and the position of the pressing plate 6 is limited by the limiting block 40 above the guard bar 3302 in the limiting grooves 41 on both sides of the turntable tool main body 101. The present utility model is provided with a second probe detection assembly 5 above the platen 6 in addition to the first probe detection assembly 4. Two parallel probes are adopted similarly to the first probe detection assembly 4 and the second probe detection assembly 5, wherein one probe is abutted with the power strip 42, and the other probe is abutted with the inspection tool 3. Because there are three rows of inserts 42, there are three sets of second probe detection assemblies 5 in this embodiment, and because there are a set of second probe detection assemblies 5 in which one probe of the rows of inserts 42 is abutted against another probe of the rows of inserts 42 and the correction tool 2, more various data can be collected, so that the measurement and calculation of the data result is more precise.

The inside of the turntable fixture 1 as shown in fig. 1 to 3 includes a core rotation shaft 29 of a rotation mechanism 102 located below the turntable fixture 1 and a tension shaft 30 inside a turntable fixture body 101. One end of the tensioning shaft 30 is connected with the rotating shaft 29, the other end of the tensioning shaft 30 is provided with a load block 31, and the load block 31 aims to strengthen the counterweight of the turntable tool 1 to enable the counterweight to be fixed on the index plate 8 more firmly, and the outer surface of one side, close to the rotating shaft 29, of the tensioning shaft 30 is wrapped with a fixing sleeve 34 to fix the tensioning shaft 30. The washer 35 is arranged above the fixed sleeve 34 to prevent the spring 36 from damaging the fixed sleeve 34, the spring 34 only winds the tensioning shaft 30 on the load block 31 and the washer 35, and the inner positioning ring 32 is arranged above the load block 31 and is used for positioning the stator 43 in the process of putting the stator 43 into the turntable tool 1 so as to ensure that the center of the circle of the stator 43 is on the axis of the tensioning shaft 30. Because the correction tool 2 wraps around the stator 43, there will be a portion of the underside that will fit against the inner locating ring 32. The outer surface of the turntable tooling main body 101 corresponding to the load block 31 is provided with a spring limiting assembly 33, as shown in fig. 11 and 12. The spring limiting assembly 33 comprises a exchanging ring 3301 and guard bars 3302 on two sides, the guard bars 3302 correspond to limiting grooves 41 on the turntable tool main body 101, the exchanging ring 3301 is provided with a circle of protrusions, the protrusions are broken at two holes 37, the holes 37 are used for placing fixing blocks 45, the fixing blocks 45 are used for limiting movement of the spring limiting assembly 33, and the fixing blocks 45 are matched with the holes 37. A circle of cylindrical pins 38 are arranged in the exchange ring 3301, the upper end and the lower end of each cylindrical pin 38 are flush with the exchange ring 3301, and the lower end of each cylindrical pin 38 is connected with a compression spring 39. A limiting block 40 is connected above the guard bar 3302, and as can be seen from fig. 1, the limiting block 40 is pressed on the pressing plate 6. In this embodiment of the present utility model, the rotating tooling main body 101 is provided with two symmetrical limiting grooves 41, the limiting grooves 41 are matched with the guard bars 3302, and in this embodiment of the present utility model, two symmetrical guard bars 3302 are provided. The ring 46 is arranged below the spring limiting assembly 33, the compression spring 39 is in contact with the ring 46, if the limiting block 40 is subjected to downward force, the compression spring 39 delays the downward pressing process through self elasticity, and after the downward force disappears, the spring limiting assembly 33 is reset by the elasticity, so that the spring limiting assembly 33 can be positioned at a proper position.

Fig. 4 to 10 are schematic views of the resistance testing device according to the present utility model. In this embodiment of the present utility model, four turntable tools 1 are uniformly distributed along the circumferential direction of the dividing disc 8, as shown in fig. 4, one of the turntable tools 1 is blocked by the top plate 18, and the turntable tool 1 is a resistance to-be-measured member. The dividing disc 8 is embedded in the workbench 9, as shown in fig. 4 and 5, a turntable limiting mechanism 25 is arranged at the junction of the dividing disc 8 and the workbench 9 and used for limiting the position of the turntable tool 1 when the dividing bottle 8 rotates, the turntable tool comprises a cam mounting plate 26 which is screwed on the workbench 9, the cam mounting plate 26 is in a strip shape, cam followers 27 are arranged on two sides of the cam mounting plate 26, a fixed shaft 28 is arranged on the central axis of the cam mounting plate 26, four turntable limiting mechanisms 25 are arranged in the embodiment of the utility model, and the turntable tool 1 is limited by the turntable limiting mechanisms 25 in the process of rotating along with the dividing disc 8. The rotation of the index plate 8 is controlled by a lower driving motor 13 and a gearbox 10, the gearbox 10 is mounted on a mounting plate 11, the mounting plate 11 is rectangular, each of four corners of the mounting plate 11 is provided with a fixing rod 12 connected with a workbench 10, one end of the mounting plate 11 is provided with a groove 24, and the groove 24 is specially designed for lifting and lowering of a cylinder 23. The drive motor 13 is connected to the gearbox 10 below the mounting plate 11 via a connecting plate 14.

The first probe detection assemblies 4 are mounted horizontally on right angle mounting plates 17 and the right angle mounting plates 17 are in turn mounted on test mounting plates 16, in this embodiment of the utility model three sets of first probe detection assemblies 4 are thus provided with three right angle mounting plates 17. The test mounting plate 16 is also provided with a base plate 15, the base plate 15 is provided with a second probe detection assembly 4 which is arranged along the vertical direction, probes at one end of the second probe detection assembly 4 are propped against the other end of the power strip 42 to be connected with the base plate 15, all three groups of second probe detection assemblies 4 are connected with the base plate 15, and the base plate 15 is a very small plate which is specially increased to match the heights of the second probe detection assembly 4 and the test mounting plate 16. In terms of position, the backing plate 15 is semi-surrounded by three right-angle mounting plates 17, the right-angle mounting plates 17 are mounted on the test mounting plate 16, a top plate 18 is arranged above the test mounting plate 16, and the area of the test mounting plate 16 is smaller than that of the top plate 18, so that an air source quick-change assembly 20 and a test plug-in assembly 19 are mounted between the top plate 18 and a gap of the test mounting plate 16. The test plug assembly 19 is a large box, and the air source quick-change assembly 20 is integrally formed into a small cuboid. The air supply quick assembly 20 is mounted on one side against the test mounting plate 16 and on the other side is suspended vertically from the top plate 18 by a plate. The test socket assembly 19 is also suspended from the top plate 18 as a large box by a plate on the central axis with the test part facing the turret tooling 1 and the upper end of the test part abutting the test mounting plate 16. The roof 18 is provided with two mounting rods 21 on the side remote from the test plug assembly 19, the mounting rods 11 pass through the workbench 9 and are connected with a cylinder support seat 22 below the workbench 9, the cylinder support seat 22 is arranged below the mounting plate 11, a cylinder 23 is arranged on the cylinder support seat 22, and the cylinder 23 passes through a groove 24 on the mounting plate 11.

The foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the utility model.

Claims

1. The utility model provides a stator resistance testing arrangement, its characterized in that, includes carousel frock, the stator has been placed at carousel frock top, be equipped with stator welding point and row of inserting in the stator circumferencial direction, the stator surface is equipped with correction frock, be equipped with first probe detection subassembly on the correction frock periphery, first probe detection subassembly is corresponding with stator welding point, inspection frock is installed to the stator top, inspection frock is installed under the clamp plate, the clamp plate is equipped with a plurality of row's of inserting hole, row's of inserting hole is corresponding with row's of inserting, row's of inserting top is equipped with second probe detection subassembly.

2. The stator resistance testing device according to claim 1, wherein the turntable fixture is mounted on an index plate, the index plate is embedded in a workbench, a gearbox is arranged below the index plate and located at the center of the index plate, the gearbox is placed on a mounting plate, a groove is formed in one end of the mounting plate, a fixing rod is arranged on the mounting plate and connected with the workbench, a driving motor is arranged below the gearbox, and a connecting plate is arranged on the side edge of the driving motor and connected with the gearbox.

3. The stator resistance testing device according to claim 1, wherein a base plate is arranged above the second probe detection assembly, a test mounting plate is arranged above the base plate, a right-angle mounting seat is arranged on the test mounting plate, the first probe detection assembly is fixed on the right-angle mounting seat, a top plate is arranged above the test mounting plate, a test plug-in assembly and an air source quick-change assembly are arranged on one side of the top plate, a mounting rod is arranged on the other side of the top plate, the mounting rod penetrates through a workbench and is connected with an air cylinder support seat, and an air cylinder is arranged on the air cylinder support seat.

4. The stator resistance testing device according to claim 2, wherein a turntable limiting mechanism is arranged at the junction of the workbench and the dividing plate, the turntable limiting mechanism comprises a cam mounting plate, the cam mounting plate is in threaded connection with the workbench, cam followers are arranged on two sides of the cam mounting plate, and a fixed shaft is arranged on a central axis of the cam mounting plate.

5. The stator resistance testing device according to claim 1, wherein the turntable fixture comprises a turntable fixture main body, a rotating mechanism is arranged below the turntable fixture main body, a rotating shaft is arranged inside the rotating mechanism, a tightening shaft is arranged inside the turntable fixture main body, one end of the tightening shaft is provided with a load block, the other end of the tightening shaft is connected with the rotating shaft, an inner positioning ring is arranged above the load block, a stator is arranged above the inner positioning ring, and a spring limiting assembly is arranged on the outer surface of the turntable fixture main body corresponding to the load block.

6. The stator resistance testing device according to claim 5, wherein the tightening shaft is provided with a fixing sleeve on a side close to the rotating mechanism, a washer is provided above the fixing sleeve, and a spring is wound around the tightening shaft above the washer.

7. The stator resistance testing device according to claim 5, wherein the spring limiting assembly on the outer surface of the turntable tool body comprises an exchange ring, symmetrical holes are formed in the circumferential direction of the exchange ring, cylindrical pins which are vertically arranged are arranged on the exchange ring, the upper end and the lower end of each cylindrical pin are flush with the exchange ring, the cylindrical pins are uniformly distributed along the circumferential direction of the exchange ring, the lower ends of the cylindrical pins are connected with compression springs, symmetrical guard bars are arranged on two sides of the exchange ring, limiting blocks are arranged above the guard bars, and the limiting blocks are pressed on the pressing plates.

8. The stator resistance testing device according to claim 5 or 7, wherein symmetrical limiting grooves are formed in the upper end of the turntable tool body, and the limiting grooves correspond to the guard bars.