CN220649440U - Rotor core shell fragment detection device - Google Patents

Abstract

The utility model discloses a rotor core spring sheet detection device, which belongs to the technical field of motors and comprises a workbench, a servo module, a conductive component and a detection component, wherein a rotor core is arranged on the workbench, the conductive component comprises a conductive piece, the conductive piece is electrically connected with the rotor core to enable the rotor core to be electrified, the detection component comprises a plurality of first detectors and a plurality of second detectors, the first detectors comprise first telescopic cylinders and first probes, the second detectors comprise second telescopic cylinders and second probes, the height H of the second probes is L-d < H less than or equal to L, the servo module drives the first probes and the second probes to move up and down to stretch into a splicing groove, the first telescopic cylinders drive the first probes to move towards a preset position to detect whether the spring sheet exists or not, and the second telescopic cylinders drive the second probes to move towards a gap to qualitatively detect the spacing of the spring sheet. This application can also carry out the qualitative detection of interval when detecting whether the shell fragment has gone on, has improved detection accuracy on the whole.

Description

Rotor core shell fragment detection device

Technical Field

The utility model relates to the technical field of motors, in particular to a rotor core spring sheet detection device.

Background

In a permanent magnet synchronous motor, an inner permanent magnet of a rotor and a rotor iron core are important component parts, the rotor iron core is formed by stacking a plurality of layers of silicon steel sheets with groove and hole characteristics, a plurality of inserting grooves formed by magnetic steel grooves are formed in the rotor iron core, and permanent magnet steel is inserted into the inserting grooves on the rotor iron core and is usually fixed in the magnetic steel grooves in the rotor iron core by adopting the processes of glue, injection molding, encapsulation and the like; when the subsequent magnet is recycled, the magnet and the iron core are tightly fixed together through plastics, so that the magnet is difficult to take out.

The Chinese patent document with the publication number of CN 211239490U discloses a motor rotor magnetic steel fixing structure, wherein equidistant elastic sheets are arranged in a plug-in groove, and the elastic sheets are used for rebound to realize the assembly of the magnetic steel, so that an injection molding and packaging process is saved, and the production efficiency is improved. Therefore, after multiple silicon steel sheets are arranged at intervals along the axial direction of the rotor core and stacked and formed, the positions of the spring plates in the inserting grooves are required to be detected, so that the forming quality of the rotor core is ensured, and the assembly of the subsequent magnetic steel is not influenced. In the prior art, whether the elastic pieces exist at the preset positions or not is generally detected, and whether the distance between the two adjacent elastic pieces accords with the requirements of customers or not is not detected qualitatively.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide a rotor core spring sheet detection device which detects whether a spring sheet exists or not and performs qualitative detection of a space at the same time so as to improve detection accuracy.

The utility model adopts the following technical scheme:

the utility model provides a rotor core shell fragment detection device, includes workstation, servo module, still includes conductive component, detection subassembly, install the rotor core on the workstation, conductive component includes electrically conductive piece, electrically conductive piece with rotor core electric connection makes rotor core is electrified, detection subassembly includes a plurality of first probes, a plurality of second probes, first probe includes first telescopic cylinder, first probe is equipped with first probe, the second probe includes second telescopic cylinder, second probe, the second probe is equipped with the second probe, supposing that the distance between two adjacent shell fragments is L, the thickness of shell fragment is d, the height H of second probe is L-d < H is less than or equal to L, servo module drive first probe, second probe reciprocate in order to stretch into rotor core's jack, first telescopic cylinder drive first probe moves towards preset position, when preset position exists, first probe contradicts with electrically conductive piece, first probe makes the shell fragment, first probe form closed circuit with the first probe sense; the second telescopic cylinder drives the second probe to move towards the direction where the gap formed between the adjacent two elastic sheets is located, when no elastic sheet exists in the gap, the second probe can extend into the gap, and the first detector senses signals.

Further, the first detectors and the second detectors are staggered above the rotor core along the circumferential direction of the rotor core.

Further, the second probe further comprises a groove-shaped photoelectric sensor, and when the second probe can extend into the gap, the groove-shaped photoelectric sensor senses a photoelectric signal.

Further, the detection assembly further comprises a displacement sensor, and the servo module drives the displacement sensor to move up and down until the displacement sensor contacts with the upper end face of the rotor core to determine a detection reference plane.

Further, the conductive component further comprises a supporting frame, a clamping piece and a detection circuit, wherein the supporting frame is installed on the workbench, the clamping piece is movably arranged on the supporting frame, the conductive piece is connected with the clamping piece through the detection circuit, and the conductive piece is pressed against the side part of the rotor core after the clamping piece moves in place.

Further, the detection assembly is arranged above the rotor core, the servo module drives the first probe and the second probe to move up and down to extend into the inserting groove of the rotor core, and the driving direction of the servo module is perpendicular to the driving direction of the first telescopic cylinder.

Further, the rotor core shell fragment detection device still includes locating component, locating component installs on the workstation, the locating component surface is equipped with many recesses, rotor core cover is established locating component is outside, the recess with the protruding looks joint cooperation of rotor core inside.

Further, the rotor core spring sheet detection device further comprises a code reader, wherein the code reader is arranged on the workbench and positioned on one side of the rotor core and used for reading the two-dimensional code on the surface of the rotor core.

Further, the rotor core spring sheet detection device further comprises a frame and a control box, wherein the frame is provided with an installation area, the workbench is arranged in the installation area, and the control box is installed on one side of the frame.

Further, the rotor core spring sheet detection device further comprises a display, and the display is installed on the frame and is in communication connection with the control box.

Compared with the prior art, the rotor core spring piece detection device comprises a workbench, a servo module, a conductive assembly and a detection assembly, wherein the workbench is used for installing a rotor core, the conductive assembly comprises a conductive piece, the conductive piece is electrically connected with the rotor core to enable the rotor core to be electrified, the detection assembly comprises a plurality of first probes and a plurality of second probes, the first probes comprise first telescopic cylinders and first probes, the first probes are provided with first probes, the second probes comprise second telescopic cylinders and second probes, the second probes are provided with second probes, the distance between two adjacent spring pieces is assumed to be L, the thickness of each spring piece is d, the height H of each second probe is L-d < H < L, the servo module drives the first probes and the second probes to move so as to extend into an inserting groove, the first telescopic cylinders drive the first probes to move towards a preset position, when the spring pieces exist at the preset position, the first probes are in contact with the spring pieces to enable the first probes to form a closed loop, and the conductive piece, the spring pieces and the first probes form a closed loop so that the electric signals of the first probes sense; the second telescopic cylinder drives the second probe to move towards the gap, when no elastic sheet exists in the gap, the second probe can extend into the gap, and the first detector senses signals. According to the method, whether the elastic sheet is detected or not can be detected, meanwhile, the qualitative detection of the distance can be carried out, and the detection precision is improved as a whole; the method is simple, convenient and quick to operate, and improves the detection efficiency.

Drawings

FIG. 1 is a perspective view of a rotor core spring detection device of the present utility model;

fig. 2 is a schematic diagram of an internal structure of the rotor core spring sheet detection device of fig. 1;

fig. 3 is an enlarged view of a portion a of the rotor core spring sheet detecting device of fig. 2;

fig. 4 is a schematic diagram of a partial structure of the detecting device for the rotor core spring sheet of fig. 1;

fig. 5 is a schematic diagram of a bottom structure of the rotor core spring sheet detection device of fig. 1;

FIG. 6 is a schematic diagram of the rotor core spring detection device of FIG. 1 when a first detector is in operation;

FIG. 7 is an enlarged view of the first detector of FIG. 6 at B in operation;

FIG. 8 is a schematic diagram of the second detector of the rotor core spring detection device of FIG. 1 in operation;

fig. 9 is an enlarged view of the second detector of fig. 8 at C in operation.

In the figure: 10. a frame; 11. loading on a frame; 12. a chassis; 20. a work table; 30. a conductive assembly; 31. a support frame; 32. a clamping member; 33. a conductive member; 40. a servo module; 50. a detection assembly; 51. a first detector; 511. a first telescopic cylinder; 512. a first probe; 5121. a first probe; 52. a second detector; 521. the second telescopic cylinder; 522. a second probe; 5221. a second probe; 523. groove type photoelectricity; 53. a displacement sensor; 54. an amplifier; 55. a slide block; 60. a positioning assembly; 61. a groove; 70. a proximity switch; 80. a code reader; 90. a control box; 100. an alarm lamp; 110. a display; 120. a rotor core; 121. a first lamination; 1211. a magnetic steel groove; 1212. a spring plate; 122. a plug-in groove; 123. a gap.

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.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or be present as another intermediate element through which the element is fixed. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Fig. 1-9 show a rotor core spring detection device according to the present utility model, which includes a frame 10, a workbench 20, a conductive assembly 30, a servo module 40, a detection assembly 50, a positioning assembly 60, a proximity switch 70, a code reader 80, a control box 90, an alarm lamp 100 and a display 110.

In this embodiment:

the rack 10 comprises an upper rack 11 and a bottom rack 12, wherein the upper rack 11 and the bottom rack 12 are fixedly connected, the upper rack 11 is provided with a mounting area for placing the workbench 20, and an industrial personal computer provided with a database management system is placed in the bottom rack 12 and used for data recording.

The workbench 20 is arranged in the installation area, the rotor core 120 is arranged on the workbench 20, the rotor core 120 is formed by arranging and stacking more than two first laminations 121 and more than two second laminations at intervals along the axial direction of the rotor core 120, eight groups of magnetic steel groove groups are uniformly distributed on the first laminations 121 along the outer edge part, each group of magnetic steel groove groups comprises two magnetic steel grooves 1211, each magnetic steel groove 1211 is provided with an elastic piece 1212 protruding into the groove, the magnetic steel grooves of the second laminations are arranged the same as the first laminations 121, no elastic piece is arranged on each magnetic steel groove, the magnetic steel grooves are stacked to form 16 inserting grooves 122 in the rotor core 120, a plurality of elastic pieces 1212 are arranged in each inserting groove 122, and a gap 123 is formed between every two adjacent elastic pieces 1212. In the present embodiment, the number of the first laminations 121 is 14, the number of the elastic pieces 1212 in each inserting slot 122 is 14, and the thickness of the elastic pieces 1212 is 0.2mm; the number of gaps 123 in each insertion groove 122 is 13, and the size of the gaps 123 is 1.2mm.

The conductive component 30 comprises a supporting frame 31, a clamping piece 32, a conductive piece 33 and a detection circuit, the supporting frame 31 is installed on the workbench 20, the clamping piece 32 is movably arranged on the supporting frame 31, the conductive piece 33 is connected to the clamping piece 32 through the detection circuit, the conductive piece 33 is arranged on one side of the rotor core 120, the conductive piece 33 is electrically connected with the rotor core 120 to enable the rotor core 120 to be electrified, and when the clamping piece 32 moves in place, the conductive piece 33 abuts against the side portion of the rotor core 120. In this embodiment, the conductive member 33 is a copper block.

The servo module 40 is disposed in the installation area and above the workbench 20, and is used for driving the detection assembly 50 to lift. In this embodiment, the driving direction of the servo module 40 is perpendicular to the driving direction of the first telescopic cylinder 511.

The detection assembly 50 is disposed above the rotor core 120, and the detection assembly 50 includes a plurality of first detectors 51, a plurality of second detectors 52, a displacement sensor 53, an amplifier 54, and a slider 55, where the plurality of first detectors 51, the plurality of second detectors 52, the displacement sensor 53, and the amplifier 54 are all mounted on the slider 55.

The first detector 51 includes a first telescopic cylinder 511 and a first probe 512, the first probe 512 is provided with a first probe 5121, the servo module 40 drives the first probe 512 to move up and down to extend into the inserting groove 122, the first telescopic cylinder 511 drives the first probe 5121 to move towards a preset position to detect whether the elastic piece 1212 exists, when the elastic piece 1212 exists at the preset position, the first probe 5121 is pressed against the elastic piece 1212 to be electrified, the conductive element 33, the elastic piece 1212 and the first probe 512 form a closed loop, and the first detector 51 senses an electric signal; if the first detector 51 cannot sense the electric signal, it indicates that the elastic sheet 1212 does not exist at the preset position, the first lamination 121 provided with the elastic sheet 1212 in the rotor core 120 is less punched, the fixing effect in the subsequent magnetic steel assembly is poor, and the rotor core 120 is a defective product.

The second detector 52 comprises a second telescopic cylinder 521, a second probe 522 and a groove-shaped photoelectric 523, the second probe 522 is provided with a second probe 5221, the distance between two adjacent elastic sheets 1212 is assumed to be L, the thickness of the elastic sheet 1212 is d, the height H of the second probe 5221 is L-d < H less than or equal to L, the servo module 40 drives the second probe 522 to move up and down to extend into the inserting groove 122, the second telescopic cylinder 521 drives the second probe 5221 to move towards the direction of the gap 123, the groove-shaped photoelectric 523 is used for sensing a photoelectric signal when the second probe 5221 extends into the gap 123 so as to qualitatively detect the distance between the elastic sheets 1212, when the second probe 5221 can extend into the gap 123, the groove-shaped photoelectric 523 can sense the photoelectric signal, which indicates that the distance between two adjacent preset elastic sheets 1212 in the rotor core 120 is normal, and the first lamination 121 provided with the elastic sheet 1212 in the rotor core 120 has no multiple punching; when the second probe 5221 cannot extend into the gap 123, the slot-type photoelectric 523 cannot sense the photoelectric signal, which means that the first lamination 121 provided with the elastic pieces 1212 in the rotor core 120 is punched more, the distance between two adjacent elastic pieces 1212 is too short, and the magnetic steel is not easy to press into the inserting slot 122, so that the rotor core 120 is a defective product. In the present embodiment, the first and second detectors 51, 52 are arranged above the rotor core 120 in a staggered manner in the circumferential direction of the rotor core 120. The number of the first detectors 51 and the second detectors 52 is 4. In other embodiments, the image acquisition device such as a camera may be further configured to determine whether the second probe 5221 extends into the gap 123, so as to perform qualitative detection on the distance between the elastic pieces 1212.

The servo module 40 drives the sliding block 55 to move to drive the displacement sensor 53 to move up and down until contacting with the upper end surface of the rotor core 120 to determine a detection reference surface, and the amplifier 54 is arranged at the front end of the sliding block 55 and is used for amplifying the induction signal of the displacement sensor 53, so that the detection accuracy is improved.

The locating component 60 is installed on the workbench 20, a plurality of grooves 61 are formed in the outer surface of the locating component 60, the extending direction of the grooves 61 is parallel to the axial direction of the locating component 60, the rotor core 120 is sleeved outside the locating component 60, each groove 61 is matched with each protrusion inside the rotor core 120 in a clamping mode, and therefore the rotor core 120 is prevented from shaking and subsequent detection is not affected.

The proximity switch 70 is disposed on the table 20 and located around the rotor core 120, and is used for detecting whether the rotor core 120 is flat.

The code reader 80 is disposed on the workbench 20 and located at one side of the rotor core 120, and is used for reading the two-dimensional code on the surface of the rotor core 120.

The control box 90 is installed on one side of the frame 10, the alarm lamp 100 is installed above the frame 10 and is in communication connection with the control box 90, and when the detecting assembly 50 detects that the first lamination provided with the elastic sheet 1212 is more or less punched, the rotor core 120 is unqualified, and the alarm lamp 100 can give an alarm.

The display 110 is mounted on the frame 10 and is in communication with the control box 90 for convenient operation by a worker according to the display condition.

When the magnetic steel detecting device works, firstly, the rotor core 120 is placed on the workbench 20, the servo module 40 drives the displacement sensor 53 to move so as to determine a detection reference surface, then drives the first detector 51 and the second detector 52 to move continuously so as to extend the first probe 512 and the second probe 522 into the inserting groove 122 of the rotor core 120, whether the elastic piece 1212 exists or not is detected through the first telescopic cylinder 511 and the first probe 5121, and the spacing qualitative detection is carried out on the elastic piece 1212 through the second telescopic cylinder 521, the second probe 5221 and the groove-type photoelectric 523, namely, whether the elastic piece 1212 exists at a preset position or not can be detected, whether the lamination with the elastic piece in the rotor core is punched more or not can be judged, the assembly effect of the subsequent magnetic steel is ensured, and the detecting precision is improved as a whole; the method is simple, convenient and quick to operate, and improves the detection efficiency.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, it is possible to make several modifications and improvements without departing from the concept of the present utility model, which are equivalent to the above embodiments according to the essential technology of the present utility model, and these are all included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a rotor core shell fragment detection device, includes workstation, servo module, its characterized in that: the detection assembly comprises a plurality of first probes and a plurality of second probes, the first probes comprise first telescopic cylinders and first probes, the first probes are provided with first probes, the second probes comprise second telescopic cylinders and second probes, the second probes are provided with second probes, the distance between two adjacent elastic sheets is assumed to be L, the thickness of each elastic sheet is d, the height H of each second probe is L-d < H < L, the servo module drives the first probes and the second probes to move up and down to stretch into a splicing groove of the rotor core, the first telescopic cylinders drive the first probes to move towards a preset position, when the elastic sheets exist at the preset position, the first probes and the elastic sheets are in contact with each other, and the electric signals are obtained by the first probes, the conductive members and the first probes form a closed loop so that the first probes sense a circuit; the second telescopic cylinder drives the second probe to move towards the direction where the gap formed between the adjacent two elastic sheets is located, when no elastic sheet exists in the gap, the second probe can extend into the gap, and the first detector senses signals.

2. The rotor core spring detection device according to claim 1, wherein: the first detectors and the second detectors are staggered above the rotor core along the circumferential direction of the rotor core.

3. The rotor core spring detection device according to claim 1, wherein: the second detector further comprises a groove-shaped photoelectric sensor, and when the second probe can extend into the gap, the groove-shaped photoelectric sensor senses a photoelectric signal.

4. The rotor core spring detection device according to claim 1, wherein: the detection assembly further comprises a displacement sensor, and the servo module drives the displacement sensor to move up and down until the displacement sensor contacts with the upper end face of the rotor core to determine a detection reference surface.

5. The rotor core spring detection device according to claim 1, wherein: the conductive component further comprises a supporting frame, a clamping piece and a detection circuit, wherein the supporting frame is installed on the workbench, the clamping piece is movably arranged on the supporting frame, the conductive piece is connected with the clamping piece through the detection circuit, and the conductive piece is pressed against the side part of the rotor core after the clamping piece moves in place.

6. The rotor core spring detection device according to claim 1, wherein: the detection assembly is arranged above the rotor core, the servo module drives the first probe and the second probe to move up and down to extend into the inserting groove of the rotor core, and the driving direction of the servo module is perpendicular to the driving direction of the first telescopic cylinder.

7. The rotor core spring detection device according to claim 1, wherein: the rotor core shell fragment detection device still includes locating component, locating component installs on the workstation, the locating component surface is equipped with many recesses, rotor core cover is established locating component is outside, the recess with the protruding looks joint cooperation of rotor core inside.

8. The rotor core spring detection device according to claim 1, wherein: the rotor core shell fragment detection device still includes the code reader, the code reader sets up on the workstation and be located rotor core one side is used for reading the two-dimensional code on rotor core surface.

9. The rotor core spring detection device according to claim 1, wherein: the rotor core shell fragment detection device still includes frame, control box, the frame is equipped with the installation region, the workstation sets up in the installation region, the control box is installed frame one side.

10. The rotor core spring detection device according to claim 9, wherein: the rotor core shell fragment detection device still includes the display, the display is installed in the frame and with control box communication connection.