Motor stator automatic multi-station detection equipment and detection method thereof

Abstract

The invention discloses motor stator automatic multi-station detection equipment and a detection method thereof, and relates to the field of motor stator laser thickness detection.The motor stator automatic multi-station detection equipment comprises an equipment base, a feeding conveying line and a discharging conveying line, and the top of the equipment base is provided with a six-part workbench by arranging a first rotating device; a plurality of groups of first positioning jigs used for positioning iron cores are arranged at the top of the sextant workbench, a pressing jig is movably mounted at the top of the equipment base by arranging a mounting frame, a manipulator is arranged at the top of the equipment base, a detection platform is mounted at the top of the equipment base, and a detection mechanism is arranged at the top of the detection platform. According to the invention, the rotatable six-part workbench is arranged and cooperates with the manipulator and the detection mechanism, so that feeding, discharging, lamination and thickness detection of the stator core can be continuously and synchronously carried out, the labor cost is saved, and the working efficiency of lamination detection of the stator core can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of motor stator laser thickness detection, in particular to a motor stator automatic multi-station detection equipment and a detection method thereof. BACKGROUND

[0002] The motor stator is a core component in the motor that does not move, and together with the rotatable rotor, it constitutes the electromagnetic conversion core of the motor, which is the basic platform for realizing the mutual conversion of electric energy and mechanical energy. The stator is mainly composed of a stator core (silicon steel sheet lamination), a stator winding (insulated copper / aluminum wire winding), a machine base (stator frame), and an insulation system.

[0003] The silicon steel sheet lamination of the stator core is a process of first punching the silicon steel sheet into a uniform specification stator punching sheet, then aligning and pressing the insulating punching sheet layer by layer, and finally forming a whole core through mechanical fastening. The core is to ensure the magnetic permeability of the core and minimize eddy current loss, while providing sufficient structural strength to the core. The whole process is the core process of motor core manufacturing, which includes four steps: punching sheet preparation, lamination assembly, tight fixing (including pressing and fastening), and subsequent finishing. Lamination assembly is performed on a dedicated lamination tool (positioning core shaft / positioning pin) to align the positioning holes of the punching sheet with the tool pins, ensuring that the inner circular groove of all punching sheets and the outer circle are completely coincident, and the roundness and slot accuracy of the core meet the standards. Tight fixing is achieved by first pressing the assembled punching sheet axially through a hydraulic machine (mainly cold pressing), and then further locking and fixing it using methods such as clamping, riveting, through screw tightening, or welding.

[0004] After the multi-layer silicon steel sheet of the motor stator is axially pressed, thickness detection must be performed, which is one of the core size detection items in the manufacture of the stator core. It is not just a single thickness value detection, but a combination of actual lamination height detection and lamination coefficient verification to ensure the size accuracy and core performance of the core. In the prior art, after the multi-layer silicon steel sheet is initially laminated, the workers usually put it on the positioning shaft or positioning pin of the pressing equipment, and then use the hydraulic machine to press the laminated core axially. After the core is preliminarily pressed, it is transferred to the laser thickness detection table by the workers, and the thickness and flatness of the core are detected by laser. This processing method is very inefficient and cannot meet the large-scale production demand. Moreover, the workers have high labor intensity and are prone to occupational diseases. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a motor stator automatic multi-station detection equipment and a detection method thereof to solve the technical problems mentioned in the background.

[0006] To achieve the above object, the present application provides the following technical scheme: a motor stator automatic multi-station detection equipment, comprising an equipment base, a feeding conveying line and a discharging conveying line, a six-split workbench is installed on the top of the equipment base through the setting of a first rotating device, a plurality of positioning devices for positioning the core are arranged on the top of the six-split workbench, the positioning device is a first positioning jig, the first positioning jig is matched with the center hole of the core, a pressing jig is movably installed on the top of the equipment base through the setting of a mounting bracket, a hydraulic mechanism is arranged on the top of the pressing jig, a manipulator is arranged on the top of the equipment base, two sets of clamps are installed on the end of the manipulator through the setting of a second rotating device, the manipulator is used for clamping the core for feeding and discharging, a detection platform is installed on the top of the equipment base, a translation mechanism is arranged in the detection platform for adjusting the position of the core, a detection mechanism is arranged on the top of the detection platform, the detection mechanism comprises a three-axis linkage mechanism, a mechanical claw is arranged on the side of the three-axis linkage mechanism, the mechanical claw is used for grabbing the core, a laser thickness measuring device is further arranged on the side of the three-axis linkage mechanism, and the laser thickness measuring device is used for detecting the thickness and flatness of the core.

[0007] By adopting the above technical scheme, the six-split workbench is rotatable, six sets of first positioning jigs for clamping and installing the stator core are uniformly installed on the top of the six-split workbench, a pressing jig is arranged above, a feeding conveying line, a manipulator, a detection mechanism and a discharging conveying line are arranged on the side, the six-split workbench is rotated to work, and the feeding and discharging, pressing and thickness detection of the stator core can be continuously and synchronously performed in cooperation with the manipulator and the detection mechanism, so that the labor cost is saved, and the working efficiency of the stator core pressing and detection is improved.

[0008] The present application further provides that the positioning device is a second positioning jig, the second positioning jig comprises a fixed seat fixedly connected with the six-split workbench, a limiting step is arranged on the top of the fixed seat, and a positioning assembly is installed on the top of the limiting step.

[0009] Preferably, the position of the core can be positioned and calibrated by setting the positioning assembly.

[0010] The present application further provides that the positioning assembly comprises a column, a sleeve is arranged in the column, a movable block is movably installed in the sleeve through the setting of a first spring, and a protrusion matched with the movable block is arranged on the bottom of the pressing jig, so that the movable block is extruded when the pressing jig is lowered and pressed.

[0011] Preferably, the movable block, the first spring and the protrusion are set, and the movable block is extruded when the pressing jig is lowered, so that the position of the movable block is adjusted.

[0012] The application is further provided with a plurality of first movable plates movably arranged inside the column body, and the plurality of first movable plates are connected by a second spring and a sleeve.

[0013] Preferably, the first movable plate is pressed and moved when the movable block is lowered, and the plurality of second movable plates are expanded to correct the position of the iron core by the flexibility of the third spring.

[0014] The application is further provided with a plurality of bearing blocks arranged at the bottom of the positioning table, a plurality of square rods arranged at the bottom of the positioning table, a fourth spring arranged outside each of the plurality of square rods, a threaded rod movably arranged outside each of the plurality of square rods, a plurality of threaded sleeves rotatably connected to the top of the fixed seat, a synchronous belt assembly arranged to drive connect the plurality of threaded sleeves, and the plurality of threaded sleeves and the plurality of threaded rods are one-to-one screw connected, and the bottom of one of the plurality of threaded sleeves is provided with an extension pipe, and the outside of the extension pipe is provided with a gear.

[0015] Preferably, the height of the positioning table can be adjusted to make it more convenient to place and take the iron core, the movement of the threaded rod can drive the positioning table to adjust the height, the fourth spring and the square rod can make the positioning table adjust the height in a small range, and the extrusion force received by the positioning table can act on the limiting step through the bearing block to reduce the stress on the threaded rod.

[0016] The top of the equipment base is provided with a first arc-shaped tooth and a second arc-shaped tooth, and the first arc-shaped tooth, the second arc-shaped tooth and the gear are matched.

[0017] Preferably, the height of the positioning table can be adjusted to make it more convenient to place and take the iron core, the movement of the threaded rod can drive the positioning table to adjust the height, the fourth spring and the square rod can make the positioning table adjust the height in a small range, and the extrusion force received by the positioning table can act on the limiting step through the bearing block to reduce the stress on the threaded rod.

[0018] The top edge of the column body is provided with a first inclined surface, and the size of the column body is smaller than the size of the center hole of the iron core.

[0019] Preferably, the first inclined surface and the column body are arranged to be smaller than the size of the center hole of the iron core, so that the iron core can be corrected again when the positioning table drives the iron core to descend, and the iron core can be smoothly arranged outside the column body.

[0020] The top of the positioning table is provided with a second inclined surface and a placement surface, and the size of the placement surface is larger than the size of the iron core.

[0021] As preferred, by setting the second inclined surface, the iron core is directly placed down by the guiding effect when the manipulator picks up the iron core, the position of the iron core can be preliminarily corrected by the guiding effect, and the placing surface is larger than the size of the iron core, so that the iron core can be smoothly placed.

[0022] A detection method of an automatic multi-station detection equipment for a motor stator, the process of which comprises the following steps:

[0023] S1: first, a plurality of stacked iron cores are conveyed by the feeding conveying line, then the manipulator works, the two groups of clamps at the end thereof respectively clamp the iron cores to be pressed on the top of the feeding conveying line and the iron cores that have been pressed on the top of the six-part workbench, then the second rotating device rotates to replace the positions of the two groups of iron cores and place the iron cores, thereby completing the feeding and discharging of the iron cores; the feeding conveying line is used for conveying the iron cores to be pressed and conveying the qualified iron cores;

[0024] S2: next, the first rotating device works to drive the six-part workbench to rotate, so that the iron cores to be pressed are moved to the lower side of the pressing jig; the hydraulic mechanism works to push the pressing jig to descend and cooperate with the first positioning jig to complete the pressing work of the iron cores;

[0025] S3: then, the first rotating device continues to work to move the iron cores that have been pressed to one side of the detection mechanism; the three-axis linkage mechanism works to adjust the position of the mechanical claw; the mechanical claw clamps and transfers the iron cores that have been pressed to the top of the detection platform; the translation mechanism in the detection platform works to push the iron cores to the lower side of the laser thickness measuring device; then the laser thickness measuring device detects the thickness and flatness by using laser; the qualified iron cores are placed back to the top of the first positioning jig; and the unqualified iron cores are transferred to the top of the discharging conveying line by the detection mechanism.

[0026] In summary, the present application mainly has the following beneficial effects:

[0027] 1: by setting the rotatable six-part workbench, and uniformly installing six groups of first positioning jigs for clamping and installing the stator iron cores on the top of the six-part workbench, and setting the pressing jig above, and setting the feeding conveying line, the manipulator, the detection mechanism and the discharging conveying line on the side, the six-part workbench rotates to work, and is divided into feeding and discharging stations, pressing stations and detection stations; the feeding, discharging, pressing and thickness detection of the stator iron cores can be continuously and synchronously performed by the cooperation of the manipulator and the detection mechanism, which not only saves labor cost, but also improves the working efficiency of the stator iron core pressing and detection.

[0028] 2、The second positioning jig can improve the working efficiency of the stator core during feeding and discharging, the traditional core fixing jig, such as the first positioning jig, is mainly a positioning shaft with a fixed structure (the positioning shaft is matched with the center hole of the core, and then the positioning effect is achieved), or a telescopic positioning shaft (a plurality of detachable and retractable positioning shafts driven by an expansion mechanism or a plurality of cylinders can adapt to different sizes of stator cores);

[0029] Whether it is a fixed structure positioning shaft like the first positioning jig, or a movable adjusting positioning shaft, the mechanical arm gripper or manual work can only install the stator core in a sleeved manner during feeding and discharging, that is, the movement process of the stator core during feeding and discharging includes two key mechanical works of horizontal position movement and vertical height adjustment, and the second positioning jig in the application mainly consists of a positioning assembly (equivalent to a positioning shaft) and a positioning table, and the height of the positioning table can be self-adaptively adjusted. The positioning table includes a placement surface and a second inclined surface, and the placement surface is slightly larger than the size of the core, so that the mechanical hand can preliminarily position the core under the guidance and correction of the second inclined surface when the core is placed during feeding, and the fault tolerance rate during feeding and discharging of the mechanical hand can be improved;

[0030] For the second positioning jig of the feeding station, the positioning table is automatically raised, so that the feeding and discharging mechanical hand can directly move horizontally to grab the core for feeding, thereby shortening the working time of the mechanical hand and improving the working efficiency during feeding and discharging of the core;

[0031] For the second positioning jig of the pressing station, the positioning table is automatically lowered, and when the positioning table drives the core to descend, the first inclined surface of the positioning assembly is extruded, so that the position of the core can be corrected again, which can ensure a certain position fault tolerance rate during feeding of the core and accurately position the core position;

[0032] For the second positioning jig of the detection station, the positioning table is automatically raised to facilitate the mechanical gripper of the detection mechanism to grab the core for thickness detection;

[0033] The second positioning jig capable of lifting and adjusting makes it more convenient and fast for the mechanical hand to feed and discharge the core, thereby improving the overall working efficiency of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the application;

[0035] Figure 2 It is an enlarged view of A in the application; Figure 1

[0036] Figure 3 It is a schematic diagram of the first positioning jig structure of the application;

[0037] ​Figure 4 Distribution diagram of mounting frame and compression jig of the present application;

[0038] Figure 5 Distribution diagram of second positioning jig and six-part workbench of the present application;

[0039] Figure 6 Distribution diagram of six-part workbench, first arc-shaped tooth and second arc-shaped tooth of the present application;

[0040] Figure 7 Structure diagram of second positioning jig of the present application;

[0041] Figure 8 Distribution diagram of threaded rod, threaded sleeve, synchronous belt assembly, extension pipe and gear of the present application;

[0042] Figure 9 Enlarged view of B in the present application; Figure 8

[0043] Figure 10 Sectional view of positioning assembly of the present application;

[0044] Figure 11 Placement demonstration diagram of motor stator when the positioning table of the second positioning jig of the present application is raised;

[0045] Figure 12 Dynamic process demonstration diagram of motor stator and first and second inclined surfaces when the positioning table of the second positioning jig of the present application is lowered;

[0046] Figure 13 Distribution diagram of motor stator and positioning assembly when the positioning table of the second positioning jig of the present application is lowered;

[0047] Figure 14 Demonstration diagram of multiple sets of second movable plates of the positioning assembly extending out when the compression jig extrusion movable block of the present application is extruded.

[0048] Explanation of reference signs:

[0049] ​1, equipment base; 2, feeding conveying line; 3, discharging conveying line; 4, six-part workbench; 5, first positioning fixture; 6, mounting frame; 7, pressing fixture; 8, mechanical hand; 9, detection platform; 10, detection mechanism; 1001, three-axis linkage mechanism; 1002, mechanical claw; 1003, laser thickness measuring device; 11, second positioning fixture; 1101, fixed seat; 1102, limiting step; 1103, positioning assembly; 11031, column body; 11032, sleeve; 11033, first spring; 11034, movable block; 11035, second spring; 11036, first movable plate; 11037, third spring; 11038, second movable plate; 11039, first inclined surface; 1104, positioning table; 1105, second inclined surface; 1106, bearing block; 1107, square rod; 1108, fourth spring; 1109, threaded rod; 1110, threaded sleeve; 1111, synchronous belt assembly; 1112, extension pipe; 1113, gear; 1114, placement surface; 12, first arc-shaped tooth; 13, second arc-shaped tooth. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0051] The embodiments of the present application will be described below according to the overall structure of the present application.

[0052] Embodiment one: please refer to Figures 1-4The utility model relates to an automatic multi-station detection equipment for motor stator, which comprises an equipment base 1, a feeding conveying line 2 and a discharging conveying line 3. The feeding conveying line 2 is used for conveying the cores to be pressed and the qualified cores. The discharging conveying line 3 is used for conveying the unqualified cores. The top of the equipment base 1 is provided with a six-split workbench 4 through a first rotating device. The top of the six-split workbench 4 is provided with a plurality of positioning devices for positioning the cores. The positioning devices are first positioning jigs 5 matched with the center holes of the cores. The top of the equipment base 1 is movably provided with a pressing jig 7 through a mounting frame 6. The top of the pressing jig 7 is provided with a hydraulic mechanism for driving the height adjustment of the pressing jig 7. The top of the equipment base 1 is provided with a manipulator 8. The end of the manipulator 8 is provided with two sets of clamps through a second rotating device. The manipulator 8 is used for clamping the cores for feeding and discharging. The top of the equipment base 1 is provided with a detection platform 9. The inside of the detection platform 9 is provided with a translation mechanism for adjusting the position of the cores. The top of the detection platform 9 is provided with a detection mechanism 10. The detection mechanism 10 comprises a three-axis linkage mechanism 1001. The side of the three-axis linkage mechanism 1001 is provided with a mechanical claw 1002 for grabbing the cores. The side of the three-axis linkage mechanism 1001 is also provided with a laser thickness measuring device 1003 for detecting the thickness and flatness of the cores.

[0053] A detection method of an automatic multi-station detection equipment for motor stator, which comprises the following steps:

[0054] S1: First, a plurality of stacked cores are conveyed by the feeding conveying line 2. Then, the manipulator 8 works. The two sets of clamps at the end of the manipulator 8 clamp the cores to be pressed on the top of the feeding conveying line 2 and the cores that have completed pressing on the top of the six-split workbench 4, respectively. Then, the second rotating device rotates to replace the positions of the two sets of cores and place the cores. The feeding and discharging of the cores are completed. The feeding conveying line 2 is used for conveying the cores to be pressed and the qualified cores.

[0055] S2: Next, the first rotating device works to drive the six-split workbench 4 to rotate, so that the cores to be pressed move below the pressing jig 7. The hydraulic mechanism works to push the pressing jig 7 to descend and cooperate with the first positioning jig 5 to complete the pressing of the cores.

[0056] S3: continue to work under the first rotating device, move the completed compression core to one side of the detection mechanism 10, the three-axis linkage mechanism 1001 works to adjust the position of the mechanical claw 1002, the mechanical claw 1002 clamps and transfers the completed compression core to the top of the detection platform 9, the translation mechanism in the detection platform 9 works to push the core to the lower side of the laser thickness measuring device 1003, and then the laser thickness measuring device 1003 detects the thickness and flatness by laser, and the qualified ones are put back on the top of the first positioning jig 5, and the unqualified ones are transferred to the top of the discharge conveying line 3 by the detection mechanism 10.

[0057] Embodiment two: please refer to Figure 1 、 Figure 2 、 Figures 3-14 , including equipment base 1, feeding conveying line 2 and discharging conveying line 3, feeding conveying line 2 is used for conveying the core to be compressed and also for conveying the qualified core, discharging conveying line 3 is used for conveying the unqualified core, the top of the equipment base 1 is provided with six workbenches 4 through the setting of the first rotating device, the top of the six workbenches 4 is provided with a plurality of positioning devices for positioning the core, the positioning device is the second positioning jig 11, the top of the equipment base 1 is movably provided with a compression jig 7 through the setting of a mounting bracket 6, the top of the compression jig 7 is provided with a hydraulic mechanism, the hydraulic mechanism is used to drive the height adjustment of the compression jig 7, the top of the equipment base 1 is provided with a mechanical hand 8, the end of the mechanical hand 8 is provided with two clamps through the setting of a second rotating device, the mechanical hand 8 is used for clamping the core for feeding and discharging, the top of the equipment base 1 is provided with a detection platform 9, the inside of the detection platform 9 is provided with a translation mechanism for adjusting the position of the core, the top of the detection platform 9 is provided with a detection mechanism 10, the detection mechanism 10 includes a three-axis linkage mechanism 1001, the side of the three-axis linkage mechanism 1001 is provided with a mechanical claw 1002, the mechanical claw 1002 is used to grab the core, the side of the three-axis linkage mechanism 1001 is also provided with a laser thickness measuring device 1003, the laser thickness measuring device 1003 is used to detect the thickness and flatness of the core.

[0058] In the above embodiment, specifically please refer to Figure 5 、 Figure 6 and Figure 7 , the positioning device is the second positioning jig 11, the second positioning jig 11 includes a fixed seat 1101 fixedly connected with the six workbenches 4, the top of the fixed seat 1101 is provided with a limiting step 1102, the top of the limiting step 1102 is provided with a positioning assembly 1103, by setting the positioning assembly 1103, the position of the core can be positioned and calibrated.

[0059] In the above embodiment, specifically please refer to Figure 10The positioning assembly 1103 comprises a column body 11031, the inside of the column body 11031 is provided with a sleeve 11032, the inside of the sleeve 11032 is movably provided with a movable block 11034 through the first spring 11033, the bottom of the compression jig 7 is provided with a protrusion matched with the movable block 11034, so that the movable block 11034 is extruded when the compression jig 7 is lowered and compressed, and through the movable block 11034, the first spring 11033 and the protrusion, the movable block 11034 can be extruded when the compression jig 7 is lowered, so as to adjust the position of the movable block 11034.

[0060] In the above embodiment, please refer to Figure 10 The inside of the column body 11031 is movably provided with a plurality of first movable plates 11036, and the plurality of first movable plates 11036 are connected through the second spring 11035 and the sleeve 11032, and the other side of the plurality of first movable plates 11036 is movably provided with a second movable plate 11038 through the third spring 11037, and through the first movable plate 11036, the second movable plate 11038, the second spring 11035 and the third spring 11037, the first movable plate 11036 can be extruded and moved when the movable block 11034 is lowered, and then the plurality of second movable plates 11038 can be expanded to correct the position of the iron core under the flexible force of the third spring 11037.

[0061] In the above embodiment, please refer to Figure 7 、 Figure 8 、 Figure 9 The outside of the positioning assembly 1103 is sleeved with a positioning table 1104, the bottom of the positioning table 1104 is provided with a plurality of bearing blocks 1106, and the bottom of the positioning table 1104 is provided with a plurality of square rods 1107, the outside of the plurality of square rods 1107 is sleeved with a fourth spring 1108, and the outside of the plurality of square rods 1107 is movably provided with a threaded rod 1109, the top of the fixed seat 1101 is rotatably connected with a plurality of threaded sleeves 1110, the plurality of threaded sleeves 1110 are drivingly connected through the synchronous belt assembly 1111, and the plurality of threaded sleeves 1110 and the plurality of threaded rods 1109 are threadedly connected one by one, the bottom of one of the plurality of threaded sleeves 1110 is provided with an extension pipe 1112, the outside of the extension pipe 1112 is provided with a gear 1113, through the positioning table 1104 with adjustable height, the placing and taking of the iron core can be more convenient, the movement of the threaded rod 1109 can drive the positioning table 1104 to adjust the height, and the fourth spring 1108 and the square rod 1107 enable the positioning table 1104 to adjust the height in a small range, so that the extrusion force acting on the positioning table 1104 can act on the limiting step 1102 through the bearing block 1106, and the stress of the threaded rod 1109 is reduced.

[0062] In the above embodiment, please refer to Figure 6 The top of the device base 1 is provided with the first arc-shaped teeth 12 and the second arc-shaped teeth 13, and the first arc-shaped teeth 12, the second arc-shaped teeth 13 and the gear 1113 are matched, by setting the first arc-shaped teeth 12 and the second arc-shaped teeth 13, the gear 1113 of the plurality of groups of the second positioning jigs 11 above the six-part workbench 4 can be engaged, so that the height of the positioning table 1104 of each group of the second positioning jigs 11 is automatically adjusted.

[0063] In the above embodiment, please refer to Figure 10 And Figure 14 The top edge of the column 11031 is provided with the first inclined surface 11039, and the column 11031 is smaller than the core center hole, by setting the first inclined surface 11039 and the column 11031 smaller than the core center hole, when the positioning table 1104 drives the core to descend, not only can the core be corrected twice, but also can ensure that it is smoothly set on the outside of the column 11031.

[0064] In the above embodiment, please refer to Figure 12 The top of the positioning table 1104 is provided with the second inclined surface 1105 and the placement surface 1114, and the placement surface 1114 is larger than the core size, by setting the second inclined surface 1105, when the manipulator 8 directly drops when grabbing the core feeding, the position of the core can be preliminarily corrected by using the guiding effect, and the placement surface 1114 is larger than the core size, which is also convenient for the core to be smoothly placed.

[0065] In the specific work, the first embodiment is taken as an example: a plurality of stacked cores are conveyed by the feeding conveying line 2, then the manipulator 8 works, the end of the manipulator 8 is provided with two groups of clamps through the second rotating device, grabs the core to be pressed on the feeding conveying line 2, and grabs the core on the top of the first positioning jig 5 of the feeding station which has completed the pressing, then rotates the replacement position and places the core, that is, completes the feeding and discharging work of the core, and the core placed back on the feeding conveying line 2 is a core that has been pressed and detected qualified.

[0066] For the six workstations 4, driven by the first rotating device, specifically, in the first positioning jig 5 of the pressing station, the hydraulic mechanism drives the pressing jig 7 to descend to mechanically press the iron core on the top of the first positioning jig 5, and then the pressed iron core continues to rotate with the six workstations 4 to reach the detection station, the three-axis linkage mechanism 1001 controls the mechanical claw 1002 to adjust the position, and then the mechanical claw 1002 works to clamp and transfer the iron core on the detection station to the top of the detection platform 9, the detection platform 9 is installed with a translation mechanism, which works to push the iron core to the directly below the laser thickness measuring device 1003, and then the laser thickness measuring device 1003 detects the thickness of the iron core, if the detection is qualified, the iron core is put back on the first positioning jig 5 of the detection station, and then the next step is to unload by the mechanical hand 8 and the feeding conveying line 2, if the detection is unqualified, the iron core is transferred by the three-axis linkage mechanism 1001 and the mechanical claw 1002 to the top of the unloading conveying line 3.

[0067] For example, in the second embodiment: when the six workstations 4 rotate to drive the multiple groups of second positioning jigs 11 on the top thereof to rotate in the feeding and unloading station, the pressing station and the detection station;

[0068] The feeding and unloading station moves to the pressing station: at this time, the positioning table 1104 of the second positioning jig 11 of the feeding and unloading station is in the raised state, so as to facilitate the iron core feeding work of the mechanical hand 8, during feeding, the mechanical hand 8 clamps and transfers the iron core to be pressed on the top of the feeding conveying line 2 to the upper side of the second positioning jig 11, and then releases the clamp, omits the original lower sleeve setting action, the iron core is guided and corrected by the second slope 1105 to slide into the top of the placement surface 1114, the setting of the second slope 1105 enables the mechanical hand 8 to have a certain fault tolerance during feeding, even if there is an error in placing the iron core, the iron core can also slide into the top of the placement surface 1114 after being guided by the second slope 1105, and the size of the placement surface 1114 is slightly larger than that of the iron core, which is also to ensure that the iron core can smoothly slide into the top of the placement surface 1114, if the size of the placement surface 1114 is consistent with that of the iron core, the iron core is easy to be embedded when sliding in;

[0069] When the six-part workbench 4 starts to rotate, the gear 1113 of the second positioning jig 11 is engaged with the first arc-shaped teeth 12, and then the rotation of the gear 1113 drives the extension pipe 1112 connected thereto to rotate, the extension pipe 1112 drives the threaded sleeve 1110 connected thereto to rotate, the set of threaded sleeves 1110 drives other threaded sleeves 1110 to rotate synchronously through the synchronous belt assembly 1111, and then the multiple sets of threaded rods 1109 are lowered synchronously, and the positioning table 1104 above the threaded rods 1109 is lowered, and the positioning table 1104 drives the iron core on the top thereof to be lowered, and in the process of lowering, since the size of the placement surface 1114 is slightly larger than the size of the iron core, the position of the iron core still has a slight deviation, and then the iron core is corrected again by the first inclined surface 11039 of the positioning assembly 1103, and the size of the column body 11031 of the positioning assembly 1103 is also slightly smaller than the center hole of the iron core, so that the iron core can be smoothly sleeved on the outside of the positioning assembly 1103.

[0070] When the second positioning jig 11 of the feeding and discharging station rotates to the pressing station along with the six-part workbench 4, the hydraulic mechanism drives the pressing jig 7 to be lowered to press the iron core, and at this time, the pressing jig 7 is internally provided with a protrusion matched with the movable block 11034, that is, the pressing jig 7 is lowered by first extruding the movable block 11034 through the protrusion in the process of lowering, the movable block 11034 compresses the first spring 11033 and extrudes the multiple sets of first movable plates 11036, the second spring 11035 is stretched, the multiple sets of first movable plates 11036 expand outward along the radial direction of the column body 11031, and the force is transmitted through the third spring 11037, the second movable plate 11038 is flexibly extruded against the inner side wall of the iron core, the iron core is corrected in position for the third time, and then the pressing jig 7 is lowered to contact the iron core to push it downward and extrude the positioning table 1104 to be lowered, the positioning table 1104 drives the multiple sets of square rods 1107 to slide in the threaded rods 1109 and compresses the fourth spring 1108, so that the positioning table 1104 can be seated on the top of the limiting step 1102 through the bearing block 1106, that is, the positioning table 1104 is subjected to the rigid reaction force of the limiting step 1102, the stress on the threaded rods 1109 is reduced, and the pressing jig 7 and the positioning table 1104 cooperate to complete the pressing work on the iron core.

[0071] When the pressing station moves to the detection station, the gear 1113 of the second positioning jig 11 is engaged with the second arc-shaped teeth 13, and then the second positioning jig 11 is reversely driven to raise the positioning table 1104, so that the detection mechanism 10 can quickly grab the detection iron core, and the detection method is the same as that in the first embodiment.

[0072] When the detection station moves to the feeding and discharging station, the positioning table 1104 of the second positioning jig 11 remains in the raised state to replace the feeding and discharging in the subsequent steps.

[0073] Although the embodiments of the present application have been shown and described, the specific embodiments are merely exemplary and are not to be construed as limiting the present application, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, and those skilled in the art can make modifications, replacements and variations to the embodiments without creative contribution after reading the specification, and as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. An automated multi-station testing device for motor stators, comprising a device base (1), a feeding conveyor line (2), and a discharging conveyor line (3), characterized in that: The top of the equipment base (1) is equipped with a six-part workbench (4) via a first rotating device. The top of the six-part workbench (4) is equipped with multiple sets of positioning devices for positioning the iron core. The positioning device is a first positioning fixture (5), which matches the center hole of the iron core. The top of the equipment base (1) is movably equipped with a pressing fixture (7) via a mounting bracket (6). The top of the pressing fixture (7) is equipped with a hydraulic mechanism. The top of the equipment base (1) is equipped with a robotic arm (8). The end of the robotic arm (8) is equipped with two sets of clamps via a second rotating device. The robotic arm (8) is used to... The iron core is clamped and loaded. A detection platform (9) is installed on the top of the equipment base (1). The detection platform (9) is equipped with a translation mechanism to adjust the position of the iron core. A detection mechanism (10) is installed on the top of the detection platform (9). The detection mechanism (10) includes a three-axis linkage mechanism (1001). A mechanical claw (1002) is installed on the side of the three-axis linkage mechanism (1001). The mechanical claw (1002) is used to grab the iron core. A laser thickness measuring device (1003) is also installed on the side of the three-axis linkage mechanism (1001). The laser thickness measuring device (1003) is used to detect the thickness and flatness of the iron core.

2. The automated multi-station testing equipment for motor stators according to claim 1, characterized in that: The positioning device is a second positioning fixture (11), which includes a fixed base (1101) fixedly connected to the six-part workbench (4). A limiting step (1102) is provided on the top of the fixed base (1101), and a positioning component (1103) is installed on the top of the limiting step (1102).

3. The automated multi-station testing equipment for motor stators according to claim 2, characterized in that: The positioning component (1103) includes a column (11031), and a sleeve (11032) is provided inside the column (11031). A movable block (11034) is movably installed inside the sleeve (11032) by means of a first spring (11033). The bottom of the pressing fixture (7) is provided with a protrusion that matches the movable block (11034), so that the pressing fixture (7) presses the movable block (11034) when it descends to press.

4. The automated multi-station testing equipment for motor stators according to claim 3, characterized in that: The column (11031) has multiple sets of first movable plates (11036) movably installed inside, and the multiple sets of first movable plates (11036) are connected by a second spring (11035) and a sleeve (11032). The other side of the multiple sets of first movable plates (11036) is equipped with a second movable plate (11038) by a third spring (11037).

5. The automated multi-station testing equipment for motor stators according to claim 2, characterized in that: The positioning component (1103) is fitted with a positioning platform (1104) on its outside. The bottom of the positioning platform (1104) is provided with multiple sets of load-bearing blocks (1106), and the bottom of the positioning platform (1104) is provided with multiple sets of square rods (1107). The outside of each set of square rods (1107) is fitted with a fourth spring (1108), and the outside of each set of square rods (1107) is movably installed with threaded rods (1109). The top of the fixed seat (1101) is rotatably connected with multiple sets of threaded sleeves (1110), and the multiple sets of threaded sleeves (1110) are connected by a synchronous belt assembly (1111). The multiple sets of threaded sleeves (1110) and the multiple sets of threaded rods (1109) are threadedly connected one-to-one. The bottom of one set of threaded sleeves (1110) is provided with an extension tube (1112), and the outside of the extension tube (1112) is provided with a gear (1113).

6. The automated multi-station testing equipment for motor stators according to claim 5, characterized in that: The top of the equipment base (1) is provided with a first arc-shaped tooth (12) and a second arc-shaped tooth (13), and the first arc-shaped tooth (12), the second arc-shaped tooth (13) and the gear (1113) are matched.

7. The automated multi-station testing equipment for motor stators according to claim 3, characterized in that: The top edge of the column (11031) is provided with a first inclined surface (11039), and the column (11031) is smaller than the center hole of the iron core.

8. The automated multi-station testing equipment for motor stators according to claim 5, characterized in that: The top of the positioning platform (1104) is provided with a second inclined surface (1105) and a placement surface (1114), the placement surface (1114) being larger than the size of the iron core.

9. A testing method for an automated multi-station testing device for motor stators, characterized in that... The process of using the automated multi-station testing equipment for motor stators according to any one of claims 1-8 includes the following steps: S1: First, multiple stacked iron cores are conveyed by the loading conveyor line (2). Then, the robot (8) works, and the two sets of clamps at its end respectively clamp the iron core to be pressed on the top of the loading conveyor line (2) and the iron core that has been pressed on the top of the six-point workbench (4). Then, the second rotating device rotates to make the two sets of iron cores switch positions and place the iron cores to complete the loading and unloading of the iron cores. The loading conveyor line (2) is used to convey the iron cores to be pressed and to convey qualified iron cores. S2: Next, the first rotating device drives the six-point worktable (4) to rotate, so that the iron core to be pressed moves to the bottom of the pressing fixture (7). The hydraulic mechanism works to push the pressing fixture (7) down and cooperate with the first positioning fixture (5) to complete the pressing of the iron core. S3: The first rotating device continues to work, moving the pressed iron core to one side of the detection mechanism (10). The three-axis linkage mechanism (1001) adjusts the position of the mechanical claw (1002). The mechanical claw (1002) clamps and transfers the pressed iron core to the top of the detection platform (9). The translation mechanism inside the detection platform (9) pushes the iron core to the bottom of the laser thickness measuring device (1003). Then the laser thickness measuring device (1003) uses laser to detect the thickness and flatness. If the detection is qualified, it is put back on the top of the first positioning fixture (5). If the detection is unqualified, it is transferred by the detection mechanism (10) to the top of the unloading conveyor line (3).

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