CN112803683A - Compaction detection all-in-one machine and compaction detection method for rotor core - Google Patents
Compaction detection all-in-one machine and compaction detection method for rotor core Download PDFInfo
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- CN112803683A CN112803683A CN202011594513.1A CN202011594513A CN112803683A CN 112803683 A CN112803683 A CN 112803683A CN 202011594513 A CN202011594513 A CN 202011594513A CN 112803683 A CN112803683 A CN 112803683A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
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Abstract
The invention discloses a compaction detection all-in-one machine and a compaction detection method for a rotor core, wherein the compaction detection all-in-one machine comprises a frame, and a jacking oil cylinder, a guiding pressure-applying assembly and a workbench which are arranged on the frame and are sequentially arranged according to the positions from top to bottom, a positioning die for the rotor core is arranged on the workbench, an ejection mechanism for ejecting the compacted rotor core out of the positioning die is arranged below the workbench, the guiding pressure-applying assembly comprises a plurality of guide columns vertically arranged on the frame, a lifting disc movably arranged on the guide columns, a shaping pressure head fixed at the central position of the lower end of the lifting disc, a pressure sensor fixed at the central position of the upper end of the lifting disc, the jacking head of the jacking oil cylinder is connected with the pressure sensor, and the frame is also provided with a vertical displacement sensor for detecting the upper position and the lower position of the lifting disc, and the jacking oil cylinder, the ejection mechanism and the vertical displacement sensor are respectively connected with a control system.
Description
Technical Field
The invention relates to the technical field of iron core manufacturing, in particular to a compaction detection all-in-one machine and a compaction detection method for a rotor iron core.
Background
The iron core of the motor rotor is formed by overlapping silicon steel sheets (punching sheets). The silicon steel sheets are usually formed by stamping a progressive die on a stamping machine, and in order to realize the integrated operation of stamping and stacking the silicon steel sheets, the stamping machine is provided with a stamping die (progressive die) and a stacking die for the silicon steel sheets. The main body of the stacking die is a tightening ring, when in punching, the punching force and the accurate punching step pitch of a blanking punch on the die are utilized, each silicon steel sheet is punched, the silicon steel sheets are pressed into the tightening ring by the blanking punch, the tightening ring and the silicon steel sheets are in interference fit to form larger friction force, and the adjacent silicon steel sheets are connected together by riveting.
After being manufactured, the iron core of the motor rotor is usually required to be installed on a rotor shaft, and the rotor iron core is pressed and fixed through an end face pressing plate.
In the prior art, the following problems still exist when the iron core of the motor rotor is manufactured: after the rotor core is assembled in a stacking mode, the two adjacent silicon steel sheets are not tightly overlapped, so that the rotor core has larger height positive deviation, on one hand, the motor generates noise due to the fact that the two adjacent silicon steel sheets are not tightly overlapped, the magnetic performance of the core is reduced, and on the other hand, the assembly quality of the motor is affected due to the fact that the total height of the core is ultrahigh.
Accordingly, there is a need for improved techniques for manufacturing rotor cores for electric machines that overcome the above-mentioned deficiencies and inadequacies.
Disclosure of Invention
In order to solve the problems, the invention provides a compaction detection all-in-one machine and a compaction detection method for a rotor core, and aims to improve the electromagnetic performance of the rotor core and the assembly quality of a motor. The specific technical scheme is as follows:
a compaction detection all-in-one machine for a rotor core comprises a rack, a jacking oil cylinder, a guiding and pressing assembly and a workbench, wherein the jacking oil cylinder is arranged on the rack and used for providing compaction power, the guiding and pressing assembly is used for performing compaction operation on the rotor core through the jacking oil cylinder, the workbench is used for installing the rotor core, a positioning die for the rotor core is arranged on the workbench, an ejection mechanism for ejecting the compacted rotor core from the positioning die is arranged below the workbench, the guiding and pressing assembly comprises a plurality of guide columns vertically arranged on the rack, a lifting disc movably arranged on the guide columns, a shaping pressure head fixed at the central position of the lower end of the lifting disc and a pressure sensor fixed at the central position of the upper end of the lifting disc, and the jacking head of the jacking oil cylinder is connected with the pressure sensor, the machine frame is also provided with a vertical displacement sensor for detecting the upper position and the lower position of the lifting disc, and the jacking oil cylinder, the ejection mechanism and the vertical displacement sensor are respectively connected with a control system.
In the invention, the compaction detection operation sequentially comprises a shaping and pressing operation which is implemented by driving the jacking oil cylinder by the control system, a prepressing operation which is implemented by driving the jacking oil cylinder by the control system before detection and a detection operation of the displacement of the lifting plate which is implemented by the control system through the vertical displacement sensor.
Preferably, the pressure applied in the shaping pressing operation is a preset shaping pressure, and the pressure applied in the pre-pressing operation before detection is the same as the axial pressing force of the rotor core on the rotor shaft.
In the invention, the jacking head of the jacking oil cylinder is connected with the pressure sensor through the floating joint.
Preferably, the vertical displacement sensor is a suspension displacement sensor; the jacking oil cylinder adopts a gas-liquid pressure cylinder.
In the invention, safety gratings are respectively arranged on the two sides of the positioning die and the lifting disc on the frame.
In the invention, the ejection mechanism comprises a discharging oil cylinder and an ejection rod connected with the discharging oil cylinder, guide holes for discharging are arranged on the workbench and the positioning die, and the ejection rod ejects a rotor core in the positioning die after sliding through the guide holes during discharging.
According to the invention, the positioning die comprises a base die, a positioning mandrel vertically arranged on the base die upwards and a positioning bottom plate sleeved on the positioning mandrel, and the ejector rod is connected to the lower end face of the positioning bottom plate.
The lower end face of the rotor core is positioned on the upper end face of the positioning base plate, and an inner hole of the rotor core is connected with the positioning mandrel in a sliding fit mode.
As a further improvement of the invention, a shaping pressing station and a loading and unloading station are arranged on the workbench, the positioning die is arranged on a reciprocating moving plate arranged on the workbench, and the reciprocating moving plate is driven by a reciprocating cylinder to realize reciprocating movement; the workbench is also provided with a transverse displacement sensor for detecting the position of the positioning die, and the transverse displacement sensor and the reciprocating cylinder are respectively connected with the control system; during compaction detection operation, the control system moves the positioning die to the shaping and pressing station through the transverse displacement sensor and the reciprocating cylinder; after compaction detection is finished, the control system moves the positioning die to the feeding and discharging station through the transverse displacement sensor and the reciprocating cylinder.
A compaction detection method of a rotor core compaction detection all-in-one machine sequentially comprises the following steps:
(1) workpiece installation: the control system moves a reciprocating moving plate on the workbench outwards through a reciprocating cylinder, and a transverse displacement sensor monitors the position of a positioning mould on the reciprocating moving plate, so that the positioning mould moves to a feeding and discharging station, and then an operator installs a rotor core on the positioning mould;
(2) resetting the workpiece: the control system drives the reciprocating moving plate to reset through the reciprocating cylinder, so that the positioning die moves to a shaping and pressing station;
(3) compacting a workpiece: the control system drives the jacking oil cylinder to shape and press the end face of the rotor iron core, the pressure of the shaping and pressing is monitored through the pressure sensor, the size of the shaping and pressing pressure is controlled to be a preset value, and the pressure is maintained for a period of time;
(4) and (3) detecting the stack thickness: after the pressure maintaining time is over, the pressure head rises, the control system controls the jacking oil cylinder to pressurize for the second time according to the preset detection pressure, then the position of the lifting disc is detected through the vertical displacement sensor, the thickness dimension of the rotor core is converted, and when the thickness dimension of the rotor core is unqualified, the control system gives an alarm to remind an operator to process;
(5) unloading the workpiece: under the condition that the alarm does not appear during the stacking thickness detection, or after the alarm is manually released, the control system drives the ejection mechanism to eject the rotor core out of the positioning die, and then the rotor core is taken away by an operator.
Preferably, in the secondary pressurization of the stack thickness detection, the control system controls the jacking oil cylinder to reduce the pressure, so that the applied pressure monitored by the pressure sensor is exactly equal to the axial pressing force of the rotor iron core mounted on the rotor shaft.
In the invention, the determination of the pressure during the lamination thickness detection is obtained through the preassembly test of the rotor core and the rotor shaft. The specific method comprises the following steps: when the rotor core, the rotor shaft and the rotor end face pressing plate are assembled by using screws, a disc type pressure sensor is additionally assembled, specifically, the disc type pressure sensor is arranged between the rotor core and the rotor end face pressing plate, then the screws are tightened by using a torque wrench according to a screw torque value specified by design (the lengthened screws need to be replaced because the thickness of the disc type pressure sensor is increased), and a pressure value measured by the disc type pressure sensor is a pressure applying value during stacking thickness detection.
The invention has the beneficial effects that:
firstly, according to the compaction detection all-in-one machine and the compaction detection method for the rotor core, the vertical displacement sensor is arranged on the rack, the pressure sensor is arranged on the guide pressure application assembly, the pressure sensor controls the pressure to be shaped and applied in real time, so that silicon steel sheets in the rotor core are overlapped more tightly, the thickness (height) size of the core is recovered to a normal value, and the vertical displacement sensor is used for detecting whether the thickness of the rotor core meets the requirement or not after the shaping and applying pressure are completed. The integration of rotor core compaction detection has been realized from this, its convenient operation, production efficiency height.
Secondly, according to the compaction detection all-in-one machine and the compaction detection method for the rotor core, the larger shaping pressure is adopted during compaction operation, and the axial pressing force during assembly of the rotor core is simulated during detection operation, so that the actual size precision requirements of the motor and the assembly of the rotor core are better met, and the magnetic performance of the rotor core and the assembly quality of the motor are improved.
Thirdly, according to the compaction and detection integrated machine and the compaction and detection method for the rotor core, the reciprocating moving plate is arranged on the workbench, the safety grating is arranged on the rack, feeding and discharging of the workpiece (the rotor core) are carried out outside the rack, and the compaction and detection integrated machine and the compaction and detection method for the rotor core are good in safety and high in operation efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a compaction and detection all-in-one machine for a rotor core of the invention.
In the figure: 1. the device comprises a rack, 2, a jacking oil cylinder, 3, a rotor iron core, 4, a guiding pressing assembly, 5, a workbench, 6, a positioning die, 7, an ejection mechanism, 8, a guide column, 9, a lifting disc, 10, a shaping pressure head, 11, a pressure sensor, 12, a jacking head, 13, a vertical displacement sensor, 14, a floating joint, 15, a safety grating, 16, a discharging oil cylinder, 17, a jacking rod, 18, a base die, 19, a positioning mandrel, 20, a positioning bottom plate, 21, a reciprocating movable plate, 22, a transverse displacement sensor, 23 and a three-color lamp.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1:
fig. 1 shows an embodiment of an integrated machine for compacting and detecting a rotor core according to the present invention, which includes a frame 1, a pressing cylinder 2 disposed on the frame 1 and sequentially arranged from top to bottom for providing a compacting power, a guiding pressing assembly 4 for performing a compacting operation on a rotor core 3 through the pressing cylinder 2, and a workbench 5 for mounting the rotor core 3, wherein a positioning mold 6 for the rotor core 3 is disposed on the workbench 5, an ejection mechanism 7 for ejecting the compacted rotor core 3 from the positioning mold 6 is disposed below the workbench 3, the guiding pressing assembly 4 includes a plurality of guiding columns 8 vertically disposed on the frame 1, a lifting plate 9 movably disposed on the guiding columns 8, and a shaping pressing head 10 fixed at a central position of a lower end of the lifting plate 9, The lifting device comprises a frame 1, a lifting disc 9, a pressure sensor 11 fixed at the center of the upper end of the lifting disc 9, a jacking head 12 of a jacking oil cylinder 2 connected with the pressure sensor 11, a vertical displacement sensor 13 used for detecting the upper and lower positions of the lifting disc 9, and the jacking oil cylinder 2, a jacking mechanism 7 and the vertical displacement sensor 13 are respectively connected with a control system.
In this embodiment, the compaction detection operation sequentially includes a shaping pressing operation performed by the jacking cylinder 2 driven by the control system, a pre-pressing operation performed by the jacking cylinder driven by the control system before detection, and a detection operation of the displacement of the lifting plate 9 performed by the control system through the vertical displacement sensor 13.
Preferably, the pressing force for the shaping pressing operation is a preset shaping pressure, and the pressing force for the pre-pressing operation before detection is the same as the axial pressing force for the rotor core 3 to be mounted on the rotor shaft.
In this embodiment, the jacking head 12 of the jacking cylinder 2 is connected to the pressure sensor 11 through a floating joint 14.
Preferably, the vertical displacement sensor 13 is a suspension displacement sensor; the jacking oil cylinder 2 adopts a gas-liquid pressure cylinder.
In this embodiment, safety gratings 15 are respectively disposed on the frame 1 at two sides of the positioning mold 6 and the lifting plate 9.
In this embodiment, the ejection mechanism 7 includes a discharge cylinder 16 and an ejector rod 17 connected to the discharge cylinder 16, guide holes for discharging are provided on the worktable 5 and the positioning mold 6, and the ejector rod 17 ejects the rotor core 3 in the positioning mold 6 after sliding through the guide holes during discharging.
In this embodiment, the positioning mold 6 includes a base mold 18, a positioning core shaft 19 vertically arranged on the base mold 18, and a positioning bottom plate 20 externally sleeved on the positioning core shaft 19, and the ejector rod 17 is connected to a lower end surface of the positioning bottom plate 20.
The lower end face of the rotor core 3 is positioned on the upper end face of the positioning bottom plate 20, and an inner hole of the rotor core 3 is connected with the positioning mandrel 19 in a sliding fit manner.
As a further improvement of this embodiment, a shaping pressing station and a loading and unloading station are arranged on the worktable 5, the positioning mold 6 is mounted on a reciprocating moving plate 21 arranged on the worktable 5, and the reciprocating moving plate 21 is driven by a reciprocating cylinder to realize reciprocating movement; the workbench 5 is also provided with a transverse displacement sensor 22 for detecting the position of the positioning die 6, and the transverse displacement sensor 22 and the reciprocating cylinder are respectively connected with the control system; during compaction detection operation, the control system moves the positioning die 6 to the shaping and pressing station through the transverse displacement sensor 22 and the reciprocating cylinder; after compaction detection is completed, the control system moves the positioning mold 6 to the loading and unloading station through the transverse displacement sensor 22 and the reciprocating cylinder.
Example 2:
a compaction detection method adopting the compaction detection all-in-one machine of the rotor core in the embodiment 1 sequentially comprises the following steps:
(1) workpiece installation: the control system moves the reciprocating moving plate 21 on the workbench 5 outwards through the reciprocating cylinder, and the position of the positioning mold 6 on the reciprocating moving plate 21 is monitored by the transverse displacement sensor 22, so that the positioning mold 6 moves to a loading and unloading station, and then the rotor core 3 is installed on the positioning mold 6 by an operator;
(2) resetting the workpiece: the control system drives the reciprocating moving plate 21 to reset through the reciprocating cylinder, so that the positioning die 6 moves to a shaping and pressing station;
(3) compacting a workpiece: the control system drives the jacking oil cylinder 2 to shape and apply pressure to the end face of the rotor iron core 3, the pressure of the shaping and applying pressure is monitored through the pressure sensor 11, the size of the shaping and applying pressure is controlled to be a preset value, and the pressure is maintained for a period of time;
(4) and (3) detecting the stack thickness: after the pressure maintaining time is over, the pressure head rises, the control system controls the jacking oil cylinder to pressurize for the second time according to the preset detection pressure, then the position of the lifting disc 9 is detected through the vertical displacement sensor 13, the thickness dimension of the rotor core 3 is converted, and when the thickness dimension of the rotor core 3 is unqualified, the control system sends an alarm to remind an operator to process;
(5) unloading the workpiece: under the condition that no alarm appears during stacking thickness detection, or after the alarm is manually released, the control system drives the ejection mechanism 7 to eject the rotor core 3 from the positioning die 6, and then an operator takes away the rotor core 3.
Preferably, in the secondary pressurization of the stack thickness detection, the control system controls the jacking oil cylinder to reduce the pressure, so that the applied pressure monitored by the pressure sensor is exactly equal to the axial pressing force of the rotor iron core mounted on the rotor shaft.
In the present embodiment, the determination of the magnitude of the pressing force during the lamination thickness detection is obtained by a pre-assembly test of the rotor core 3 and the rotor shaft. The specific method comprises the following steps: when the rotor core 3, the rotor shaft and the rotor end surface pressure plate are assembled by using screws, a disc type pressure sensor 11 is additionally assembled, specifically, the disc type pressure sensor 11 is installed between the rotor core 3 and the rotor end surface pressure plate, then the screws are tightened by using a torque wrench according to a screw torque value specified by design (the lengthened screws need to be replaced because the thickness of the disc type pressure sensor 11 is increased), and at this time, a pressure value measured by the disc type pressure sensor 11 is a pressure value during lamination thickness detection.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A compaction detection all-in-one machine of a rotor core is characterized by comprising a rack, a jacking oil cylinder, a guiding and pressing assembly and a workbench, wherein the jacking oil cylinder is arranged on the rack and used for providing compaction power, the guiding and pressing assembly is used for performing compaction operation on the rotor core through the jacking oil cylinder, the workbench is used for installing the rotor core, a positioning die of the rotor core is arranged on the workbench, an ejection mechanism used for ejecting the compacted rotor core out of the positioning die is arranged below the workbench, the guiding and pressing assembly comprises a plurality of guide columns vertically arranged on the rack, lifting discs movably arranged on the guide columns, a shaping pressure head fixed at the central position of the lower end of each lifting disc, and a pressure sensor fixed at the central position of the upper end of each lifting disc, and the jacking head of the jacking oil cylinder is connected with the pressure sensor, the machine frame is also provided with a vertical displacement sensor for detecting the upper position and the lower position of the lifting disc, and the jacking oil cylinder, the ejection mechanism and the vertical displacement sensor are respectively connected with a control system; the jacking head of the jacking oil cylinder is connected with the pressure sensor through a floating joint, and the vertical displacement sensor adopts a suspension displacement sensor; the jacking oil cylinder adopts a gas-liquid pressure cylinder.
2. The integrated machine for compacting and detecting the rotor core according to claim 1, wherein the compacting and detecting operation sequentially comprises a shaping and pressing operation which is implemented by driving the jacking oil cylinder by the control system, a pre-pressing operation which is implemented by driving the jacking oil cylinder by the control system before detection, and a detection operation of the displacement of the lifting plate which is implemented by the control system through the vertical displacement sensor.
3. The integrated machine for compacting and detecting the rotor core according to claim 2, wherein the pressing force for the shaping pressing operation is a preset shaping pressure, and the pressing force for the pre-pressing operation before detection is the same as an axial pressing force for installing the rotor core on the rotor shaft.
4. The integrated machine for compacting and detecting the rotor core according to claim 1, wherein safety gratings are respectively arranged on the two sides of the positioning die and the lifting disc on the machine frame.
5. The compaction detection all-in-one machine of rotor core according to claim 1, characterized in that, the ejection mechanism comprises a discharge oil cylinder and an ejector rod connected with the discharge oil cylinder, guide holes for discharging are arranged on the workbench and the positioning die, and the ejector rod ejects the rotor core in the positioning die after sliding through the guide holes during discharging.
6. The compaction detection all-in-one machine for the rotor core is characterized in that the positioning die comprises a base die, a positioning mandrel vertically arranged on the base die upwards and a positioning bottom plate sleeved on the positioning mandrel, and the ejector rod is connected to the lower end face of the positioning bottom plate.
7. The compaction and detection integrated machine for the rotor core as claimed in claim 1, wherein the workbench is provided with a shaping and pressing station and a loading and unloading station, the positioning die is mounted on a reciprocating plate arranged on the workbench, and the reciprocating plate is driven by a reciprocating cylinder to reciprocate; the workbench is also provided with a transverse displacement sensor for detecting the position of the positioning die, and the transverse displacement sensor and the reciprocating cylinder are respectively connected with the control system; during compaction detection operation, the control system moves the positioning die to the shaping and pressing station through the transverse displacement sensor and the reciprocating cylinder; after compaction detection is finished, the control system moves the positioning die to the feeding and discharging station through the transverse displacement sensor and the reciprocating cylinder.
8. A compaction detection method of the compaction detection all-in-one machine adopting the rotor core as claimed in any one of claims 1 to 7 is characterized by sequentially comprising the following steps:
(1) workpiece installation: the control system moves a reciprocating moving plate on the workbench outwards through a reciprocating cylinder, and a transverse displacement sensor monitors the position of a positioning mould on the reciprocating moving plate, so that the positioning mould moves to a feeding and discharging station, and then an operator installs a rotor core on the positioning mould;
(2) resetting the workpiece: the control system drives the reciprocating moving plate to reset through the reciprocating cylinder, so that the positioning die moves to a shaping and pressing station;
(3) compacting a workpiece: the control system drives the jacking oil cylinder to shape and press the end face of the rotor iron core, the pressure of the shaping and pressing is monitored through the pressure sensor, the size of the shaping and pressing pressure is controlled to be a preset value, and the pressure is maintained for a period of time;
(4) and (3) detecting the stack thickness: after the pressure maintaining time is over, the pressure head rises, the control system controls the jacking oil cylinder to pressurize for the second time according to the preset detection pressure, then the position of the lifting disc is detected through the vertical displacement sensor, the thickness dimension of the rotor core is converted, and when the thickness dimension of the rotor core is unqualified, the control system gives an alarm to remind an operator to process;
(5) unloading the workpiece: under the condition that the alarm does not appear during the stacking thickness detection, or after the alarm is manually released, the control system drives the ejection mechanism to eject the rotor core out of the positioning die, and then the rotor core is taken away by an operator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011594513.1A CN112803683B (en) | 2020-12-29 | 2020-12-29 | Compaction detection all-in-one machine and compaction detection method for rotor core |
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| CN202011594513.1A CN112803683B (en) | 2020-12-29 | 2020-12-29 | Compaction detection all-in-one machine and compaction detection method for rotor core |
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| CN112803683A true CN112803683A (en) | 2021-05-14 |
| CN112803683B CN112803683B (en) | 2022-05-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114413753A (en) * | 2021-12-29 | 2022-04-29 | 德恩科电机（太仓）有限公司 | Brushless motor stator core retention force testing method |
| CN114453272A (en) * | 2021-12-30 | 2022-05-10 | 江阴市高拓精密模具有限公司 | Automatic press riveting detection line and detection process for rotor core |
| CN114894142A (en) * | 2022-05-19 | 2022-08-12 | 贵州航天电器股份有限公司 | Height measuring device |
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| CN210111803U (en) * | 2019-08-16 | 2020-02-21 | 苏州德伊捷自动化机械有限公司 | Press mounting and detecting integrated machine for motor iron core |
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| US20120048471A1 (en) * | 2010-08-31 | 2012-03-01 | Toyota Boshoku Kabushiki Kaisha | Rotary lamination apparatus |
| CN201937405U (en) * | 2010-12-16 | 2011-08-17 | 东昌电机(深圳)有限公司 | Rotor core punching device |
| CN203482043U (en) * | 2013-08-28 | 2014-03-12 | 比亚迪股份有限公司 | Rotor crimping device |
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| CN114413753A (en) * | 2021-12-29 | 2022-04-29 | 德恩科电机（太仓）有限公司 | Brushless motor stator core retention force testing method |
| CN114453272A (en) * | 2021-12-30 | 2022-05-10 | 江阴市高拓精密模具有限公司 | Automatic press riveting detection line and detection process for rotor core |
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| CN114894142B (en) * | 2022-05-19 | 2023-05-12 | 贵州航天电器股份有限公司 | Height measuring device |
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| CN112803683B (en) | 2022-05-31 |
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