An automatic detection device for motor armature winding

Abstract

The application discloses a motor armature winding automatic detection device, which comprises a detection module, a conveying mechanism and a moving mechanism, the conveying mechanism comprises input and output parts arranged on both sides of the detection module, the moving mechanism comprises a linear module and a grabbing part connected to the linear module, the grabbing part has a grabbing state for grabbing the armature from the input part, a detection and placement state for conveying the armature to the adjusting component, and a grabbing and output state for grabbing the armature from the adjusting component and conveying the armature to the output part, and when the armature is arranged on the adjusting component, a plurality of probes are in contact with corresponding commutating segments. The armature to be detected is placed on the input part one by one, and then conveyed by the input part, the moving mechanism grabs the armature to be detected on the input part and places the armature on the detection module, and the armature after detection is grabbed by the moving mechanism and then output by the output part, so that the input, detection and output of the whole armature detection are automated, and the detection efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of motor testing, and in particular to an automatic testing device for motor armature windings. Background Technology

[0002] An armature (rotor) typically consists of an iron core, coil windings, and a commutator. The coil windings are usually composed of multiple coil units connected together. The coils are fixed by being wound around the iron core, and the leads of the coils need to be connected to the commutator segments to conduct current. The commutator segments and the leads of the coils are generally connected by welding. During the welding process, incomplete soldering can easily occur, affecting the quality of the armature.

[0003] Currently, to detect whether there is a cold solder joint at the lead-out end of the coil, a method is typically used where a number of probes corresponding to the number of windings are placed against the commutator segments corresponding to each winding group. The induced potential between two adjacent commutator segments is then obtained and compared with a threshold to quickly determine the location of the cold solder joint. For example, the invention patent with publication number CN101799509B discloses "a detection system and method for motor armature windings," which places the armature on a base and uses a corresponding number of probes to contact the commutator segments to obtain the driving potential between two adjacent commutator segments, thereby determining the location of abnormal winding connections.

[0004] In practical applications, both the placement and testing of the armature in the aforementioned detection system require manual operation, resulting in relatively low testing efficiency. Utility Model Content

[0005] To improve the detection efficiency of motor armatures, this application provides an automatic detection device for motor armature windings.

[0006] The automatic detection device for motor armature windings provided in this application adopts the following technical solution: An automatic detection device for motor armature windings, comprising: At least one detection module, the detection module including an adjustment component for receiving the armature and a detection component, the detection component including a plurality of probes; A conveying mechanism is used to convey the armature under test to one side of the testing module and to output the tested armature. The conveying mechanism includes input and output components located on both sides of the testing assembly. The moving mechanism includes a linear module and a gripper connected to the linear module; The gripper has a gripping state for gripping the armature from the input component, a detection and placement state for conveying the armature to the adjustment component, and a gripping and output state for gripping the armature from the adjustment component and conveying it to the output component. When the armature is placed on the adjustment component, multiple probes abut against the corresponding commutator segments.

[0007] Preferably, the detection component includes: The claw disk has a first guide groove corresponding to the number of commutator segments, and a slider is provided in the first guide groove. The probe is connected to the slider. A drive disk is rotatably connected to one end face of a claw disk, and a second guide groove is provided on the drive disk; Multiple guide posts corresponding to the number of sliders, each guide post passing through a first guide groove and a second guide groove, with one end of the guide post connected to the slider; and The first rotary motor is connected to the drive disk and is used to drive the drive disk to rotate relative to the claw disk; When the drive disk rotates relative to the claw disk, it forces multiple probes to perform opening and closing movements of facing each other / moving away.

[0008] Preferably, the detection component includes a drive unit that connects to the claw disc for driving the claw disc away from / towards the adjustment component.

[0009] Preferably, the adjustment component includes: Two adjusting rollers; A drive motor is used to drive the two adjusting rollers to rotate synchronously. The transmission component connects the drive motor to the two adjusting rollers.

[0010] Preferably, the transmission component includes a drive gear and two driven gears meshing with the drive gear, the drive gear being connected to a drive motor, and the driven gears being connected to an adjusting roller.

[0011] Preferably, the transmission component includes a driving pulley, two driven pulleys, and a synchronous belt meshing with the driving pulley and the two driven pulleys. The driving pulley is connected to a drive motor, and the driven pulleys are connected to an adjusting roller.

[0012] Preferably, the adjustment component further includes: Control module; The first sensor is electrically connected to the control module and is used to obtain the angular position of the armature between the two adjusting rollers. The drive motor is electrically connected to the control module and is used to receive the execution signal issued by the control module to drive the two adjusting rollers to rotate the armature to a specified angle.

[0013] Preferably, the gripping element includes a first gripping element and a second gripping element arranged adjacent to each other.

[0014] Preferably, the first gripper is a magnetic gripper, and the second gripper includes a second rotary motor and a connected finger cylinder.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. By placing the armatures under test one by one onto the input device and transporting them by the input device, the moving mechanism picks up the armatures under test on the input device and places them on the detection module. After the armatures are tested, the moving mechanism picks them up again and finally outputs them by the output device, thus automating the entire armature testing process from input, testing and output, and improving testing efficiency. 2. Before testing the armature under test, the relative angle is adjusted by adjusting the components so that each probe can be aligned with the corresponding commutator segment, thereby improving the accuracy of the test. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an automatic detection device for motor armature windings. Figure 2 This diagram mainly shows the distribution of the conveying mechanism and the detection module; Figure 3 This is a schematic diagram showing the main structure of the detection component; Figure 4 This is a schematic diagram showing the placement of the armature on the regulating assembly; Figure 5 This is a schematic diagram showing the structure of the adjustment component; Figure 6 This mainly shows the distribution of multiple probes; Figure 7 This is a schematic diagram showing the distribution between the moving components and the output mechanism; Figure 8 This is a schematic diagram of the armature structure.

[0017] Explanation of reference numerals in the attached drawings: 10, frame; 20, detection module; 21, detection component; 211, claw disk; 212, drive disk; 2121, second guide groove; 213, guide post; 214, first rotary motor; 215, drive component; 216, slider; 2161, first guide groove; 217, probe; 22, adjustment component; 221, drive motor; 222, adjusting roller; 223, driven pulley; 224, driving pulley; 2 25. First sensor; 226. Detection station; 30. Input component; 31. Input station; 32. Second sensor; 40. Output component; 41. Output station; 50. Moving mechanism; 51. Linear module; 52. Slide table; 53. Second lifting cylinder; 54. Second rotary motor; 55. Finger cylinder; 56. First lifting cylinder; 57. Magnetic component; 60. Armature; 61. Rotating shaft; 611. Notch; 62. Commutator segment. Detailed Implementation

[0018] The present application will be further described in detail below with reference to the accompanying drawings.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0020] Unless otherwise defined, 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 application belongs. The terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] Figure 1 An automatic testing device for motor armature windings is shown, including a frame 10, a conveying mechanism mounted on the frame 10, a moving mechanism 50, and at least one testing module 20. The conveying mechanism includes an input component 30 and an output component 40 located on both sides of the testing module 20. The input component 30 can be connected to an external vibratory feeder for conveying the armature 60 to be tested; the output component 40 is used to output the tested armature 60; the moving mechanism 50 moves back and forth between the input component 30, the testing module 20, and the output component 40, for gripping the armature 60 from the input component 30 to the testing module 20 and for gripping and transferring the tested armature 60 to the output component 40.

[0022] See Figure 2 In this embodiment, the input component 30 and the output component 40 are conveyor belt structures, driven by a servo motor to rotate the transmission belt. The detection module 20 has two sets arranged adjacent to each other, and the detection module 20 includes a detection component 21 and an adjustment component 22 arranged front and rear.

[0023] See also Figures 3 to 5The detection component 21 includes a claw disk 211, a drive disk 212 rotatably connected to it, and a first rotary motor 214 connected to the drive disk 212. The claw disk 211 has multiple circumferentially evenly spaced first guide grooves 2161. A slider 216 is disposed within each first guide groove 2161, and a probe 217 is fixed to each slider 216. One end of each probe 217 extends towards the same center. The drive disk 212 is driven by the first rotary motor 214 to rotate relative to the claw disk 211. The drive disk 212 has a second guide groove 2121 partially communicating with the first guide grooves 2161. A guide post 213 passes through the second guide groove 2121, and one end of the guide post 213 extends into the first guide groove 2161 and connects to the slider 216. When the drive disk 212 rotates, it squeezes and pushes the guide post 213 to slide along the second guide groove 2121, while driving the slider 216 to move in the first guide groove 2161, thereby driving the probe 217 connected to the slider 216 to perform an opening and closing motion toward / away from the same center direction.

[0024] The detection component 21 also includes a drive component 215, which is connected to the claw disk 211 for driving the claw disk 211 to move away from / near the adjustment component 22.

[0025] The adjustment assembly 22 includes a drive motor 221 and two adjustment rollers 222. The two adjustment rollers 222 are spaced apart to form a testing station 226 for placing the armature 60 under test. One end of each adjustment roller 222 is connected to a driven pulley 223, and the drive motor 221 is connected to a driving pulley 224. The two driven pulleys 223 and the driving pulley 224 are connected by a synchronous belt. When the drive motor 221 drives the driving pulley 224 to rotate, the synchronous belt drives the two driven pulleys 223 to rotate, thereby driving the two adjustment rollers 222 to rotate synchronously. When the two adjustment rollers 222 rotate, the friction force can drive the armature 60 under test to rotate, thereby achieving adjustment of the relative angle.

[0026] In another embodiment, the drive motor 221 can also use gear transmission in the transmission structure that drives the two adjusting rollers 222. That is, the drive motor 221 is connected to the driving gear, one end of the adjusting roller 222 is connected to the driven gear, and the driving gear meshes with the two driven gears to achieve linkage.

[0027] Combination Figure 6 and Figure 8The adjustment assembly 22 also includes a first sensor 225 placed on one side of the detection station 226 and an electrically connected control module. The armature 60 under test includes a rotating shaft 61, one end of which has a notch 611, and the other end of which is provided with a plurality of circumferentially distributed commutator segments 62, the number of which is the same as the number of windings. In this embodiment, five windings are used as an example, corresponding to five commutator segments 62 connected to them. The number of commutator segments 62 also corresponds to the number of circumferentially distributed probes 217. The first sensor 225 is a photoelectric sensor used to detect the angular position of the notch 611. The generated detection signal is compared with the position preset in the control module. The control module is electrically connected to the drive motor 221 and can send an execution signal to the drive motor 221. The drive motor 221 drives the two adjusting rollers 222 to rotate, thereby driving the armature 60 under test to rotate to a preset relative angle. In this embodiment, the control module is a PLC or a microcontroller.

[0028] Of course, in another embodiment, the angle adjustment of armature 60 can also be achieved through visual technology, using CCD camera to take pictures and compare to adjust the relative angle position of the drive armature.

[0029] When the armature 60 under test rotates to the corresponding angle, several probes 217 move toward the center of a concentric circle and abut against the corresponding commutator segment 62. The probes 217 are connected to the detection circuit in the device and display the data on the display screen to observe whether the corresponding values ​​meet the standard.

[0030] See also Figure 2 and Figure 7 The moving mechanism 50 includes a linear module 51, a slide table 52 connected to the linear module 51, and a gripper connected to the slide table 52. In this embodiment, the gripper includes a first gripper and a second gripper, and the distance between adjacent first and second grippers is the distance between the two detection stations 226 in the two sets of detection modules 20. The input unit 30 has an input station 31, and a second sensor 32 is provided on one side of the input station 31. The second sensor 32 is also a photoelectric sensor, used to detect when the armature 60 under test is delivered to the input station 31 and stop the movement of the input unit 30. The output unit 40 has an output station 41, and the corresponding gripper has a gripping state of gripping the armature 60 under test from the input station 31, a detection placement state of delivering the armature 60 to the detection station 226, and a gripping output state of gripping the armature 60 from the detection station 226 and delivering it to the output station 41.

[0031] In this embodiment, the first gripper is a magnetic suction member 57, which is magnetic when energized to attract the armature 60; the second gripper includes a second rotary motor 54 and a finger cylinder 55 connected to it. The first gripper has the above-described gripping state and detection placement state, and the second gripper has the above-described gripping output state and outputs the measured armature 60 at a certain placement angle.

[0032] The first gripper is connected to the first lifting cylinder 56, and the second gripper is connected to the second lifting cylinder 53. The two lifting cylinders are used to independently control the lifting of the first gripper and the second gripper.

[0033] When this testing device is working, the armature 60 under test is input one by one from the input device 30. When it moves to the input station 31, the second sensor 32 senses that the input device 30 stops conveying. The first gripper grabs the armature 60 to the testing station 226. The first rotary motor 214 drives the drive disk 212 to control multiple probes 217 to move toward the commutator segment 62 of the armature 60 and make contact to measure the resistance. After completion, the probes 217 are reset. The second gripper grabs the armature 60 and conveys it to the output station 41 for output. This process is repeated to achieve automated testing and improve testing efficiency.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic detection device for motor armature windings, characterized in that, include: At least one detection module (20) includes an adjustment component (22) for receiving an armature (60) and a detection component (21) including a plurality of probes (217). A conveying mechanism for conveying the armature under test (60) to one side of the detection module (20) and outputting the tested armature (60), the conveying mechanism including an input component (30) and an output component (40) located on both sides of the detection assembly (21); and The moving mechanism (50) includes a linear module (51) and a gripper connected to the linear module (51); The gripper has a gripping state of gripping the armature (60) from the input member (30), a detection placement state of conveying the armature (60) to the adjustment component (22), and a gripping output state of gripping the armature (60) from the adjustment component (22) to the output member (40). When the armature (60) is placed on the adjustment component (22), multiple probes (217) abut against the corresponding commutator segments (62).

2. The automatic detection device for motor armature windings according to claim 1, characterized in that, The detection component (21) includes: The claw disk (211) has a first guide groove (2161) corresponding to the number of commutator segments (62). A slider (216) is provided in the first guide groove (2161), and the probe (217) is connected to the slider (216). A drive disk (212) is rotatably connected to one end face of a claw disk (211), and a second guide groove (2121) is provided on the drive disk (212). A plurality of guide posts (213) corresponding to the number of sliders (216), wherein the guide posts (213) pass through the first guide groove (2161) and the second guide groove (2121) and one end of the guide post (213) is connected to the slider (216); and The first rotary motor (214) is connected to the drive disk (212) to drive the drive disk (212) to rotate relative to the claw disk (211); When the drive disk (212) rotates relative to the claw disk (211), it forces multiple probes (217) to perform opening and closing movements in opposite directions or away from each other.

3. The automatic detection device for motor armature windings according to claim 2, characterized in that, The detection component (21) includes a drive element (215) that connects to the claw disk (211) to drive the claw disk away from / towards the adjustment component (22).

4. The automatic detection device for motor armature windings according to claim 1, characterized in that, The adjustment component (22) includes: Two adjusting rollers (222); A drive motor (221) is used to drive the two adjusting rollers (222) to rotate synchronously; The transmission component connects the drive motor (221) and the two adjusting rollers (222).

5. The automatic detection device for motor armature windings according to claim 4, characterized in that, The transmission component includes a drive gear and two driven gears meshing with the drive gear. The drive gear is connected to a drive motor (221), and the driven gears are connected to an adjusting roller (222).

6. The automatic detection device for motor armature windings according to claim 4, characterized in that, The transmission component includes a driving pulley (224), two driven pulleys (223), and a synchronous belt meshing with the driving pulley (224) and the two driven pulleys (223). The driving pulley (224) is connected to a drive motor (221), and the driven pulleys (223) are connected to an adjusting roller (222).

7. The automatic detection device for motor armature windings according to claim 4, characterized in that, The adjustment component (22) further includes: Control module; The first sensor (225) is electrically connected to the control module. The first sensor (225) is used to obtain the angular position of the armature (60) between the two adjusting rollers (222). The drive motor (221) is electrically connected to the control module and is used to receive the execution signal issued by the control module to drive the two adjusting rollers (222) to rotate the armature (60) to a specified angle.

8. The automatic detection device for motor armature windings according to claim 1, characterized in that, The gripping components include a first gripping component and a second gripping component arranged adjacent to each other.

9. The automatic detection device for motor armature windings according to claim 8, characterized in that, The first gripper is a magnetic suction device (57), and the second gripper includes a second rotary motor (54) and a connected finger cylinder (55).

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