Motor rotor rotation balance testing device and automatic motor assembling system

Abstract

The invention provides a motor rotor rotation balance testing device and an automatic motor assembling system, and belongs to the technical field of motor rotor dynamic balance detection. The device comprises a conveying track, a rotor support, a detection mechanism and a power mechanism, the conveying track is provided with a track lifting section, the rotor support comprises a sliding seat and supporting pieces fixed to the top of the sliding seat at intervals, the sliding seat is slidably matched with the conveying track, and supporting grooves are formed in the tops of the supporting pieces; the detection mechanism comprises a driving belt located above the track lifting section, a tensioning assembly used for tensioning the driving belt and a detector used for detecting the motor rotor. When the rotor support slides to the rail lifting section and the rail lifting section is located at the lifting position, the motor rotor supported by the supporting piece corresponds to the detector, and the motor rotor iron core abuts against the driving belt in a sliding mode. The device can automatically convey the motor rotor and move the motor rotor to a detection position, a driving belt does not need to be disassembled and assembled during each test, and the operation is more time-saving and labor-saving.

Description

Technical Field

[0001] This application relates to the technical field of dynamic balance detection of motor rotors. Specifically, it relates to a device for testing the rotational balance of a motor rotor and an automated motor assembly system. Background Art

[0002] The motor rotor is an important component of the motor; the vibration caused by the imbalance of the motor rotor is one of the most critical problems in motor maintenance, which has an adverse impact on the operating state of the motor, such as generating a large amount of noise, accelerating the wear of the motor bearing bush, etc. In order to reduce or even eliminate the motor vibration, after the motor rotor is produced, it is necessary to test its dynamic balance.

[0003] Currently, belt-type dynamic balance testing equipment is usually used for testing. The motor drives the belt drive, and the belt drives the motor rotor to rotate. Specifically, when testing the dynamic balance of the motor rotor, generally, the staff fixes the motor rotor on the testing equipment, and then installs the belt (contacts the belt with the motor rotor and then tightens the belt). After the test is completed, the belt is removed, and then the staff takes away the motor rotor. This testing method requires the staff to manually pick up and place the motor rotor, and the installation and disassembly of the belt are required for each test, which is time-consuming and laborious. Summary of the Invention

[0004] The purpose of this application is to provide a device for testing the rotational balance of a motor rotor and an automated motor assembly system, which can automatically realize the pipeline-type transportation of the motor rotor and move the motor rotor to the detection position, and there is no need to install and disassemble the belt during each test, and the operation is more time-saving and labor-saving.

[0005] The embodiments of this application are implemented as follows: In a first aspect, an embodiment of this application provides a device for testing the rotational balance of a motor rotor, including: A conveying track, which includes a track fixed section and a track lifting section that are distributed and connected along the conveying direction; A rotor bracket, which includes a sliding seat and a plurality of support members. The sliding seat is slidably matched with the conveying track along the conveying direction, and the plurality of support members are fixedly spaced on the top of the sliding seat. A support groove for supporting the rotating shaft of the motor rotor is provided at the top of each support member; A detection mechanism, which includes a driving belt, a tensioning assembly and a detector. The driving belt is located above the track lifting section. The tensioning assembly is used to tension the driving belt, and the detector is used to detect the motor rotor; A power mechanism, the power mechanism comprises a first driving member, a second driving member and a third driving member, the first driving member is used to drive the rotor support to slide relative to the conveying track along the conveying direction, the second driving member is used to drive the track lifting section to rise and fall between the initial position and the raised position, and the third driving member is used to drive the driving belt transmission; When the rotor bracket slides to the track lifting section and the track lifting section is in the raised position, the motor rotor supported by the support member is in the detection position corresponding to the detector, and the motor rotor core can be slidably held under the driving belt.

[0006] The motor rotor rotation balance test device provided in the embodiment of the present application has the following beneficial effects: The motor rotor is supported on the top of the rotor bracket by a support, and the rotor bracket is slidably matched with the conveying track. The motor rotor is conveyed along the conveying track by driving the rotor bracket; a track lifting section is set in the conveying track. When the rotor bracket drives the motor rotor to be conveyed to the track lifting section, the track lifting section is driven to lift the motor rotor to the detection position corresponding to the detector. In this design, the assembly line conveyance of the motor rotor can be realized by driving the rotor bracket, and the motor rotor can be moved to the detection position by driving the track lifting section without manual operation.

[0007] At the same time, the drive belt is set above the track lifting section. When the motor rotor is lifted to the detection position, the motor rotor core can be slidably held under the drive belt. Under the tensioning action of the tensioning assembly, the drive belt remains in a tensioned state and slides tightly with the motor rotor core. In this design, each time the motor rotor is lifted to the detection position, it automatically cooperates with the drive belt, without the need to install or remove the drive belt.

[0008] In some embodiments, the detection mechanism is further provided with an embracing component, which corresponds to the motor rotor shaft at the detection position, and the embracing component is configured to be able to switch between a state of releasing the motor rotor shaft and a state of embracing the motor rotor shaft.

[0009] In some embodiments, the embracing assembly includes a mating hoop, a rotating transmission member and an embracing arm. The bottom of the mating hoop is provided with a coordination groove matching the motor rotor shaft. The embracing arms are spaced apart on both sides of the coordination groove. The embracing arms are rotatably connected to the mating hoop through the rotating transmission member. The embracing arms open and close the coordination groove by rotating, so that the embracing assembly can switch between the state of loosening the motor rotor shaft and embracing the motor rotor shaft.

[0010] In some embodiments, the embracing arm has an embracing side wall corresponding to the motor rotor shaft, and the detector includes a pressure sensor arranged on the embracing side wall. The surface of the pressure sensor is provided with a wear-resistant layer matching the motor rotor shaft, and the wear-resistant layer is used to slidably fit with the motor rotor shaft.

[0011] In some embodiments, the second drive member includes a vertical rail, a lifting arm, a drive shaft, a fixed seat, a transmission assembly, and a driver; The vertical rail is provided with a lifting slide groove, and a lifting slider is slidably accommodated in the lifting slide groove; The lifting arm is connected between the lifting slider and the track lifting section; The driving shaft is rotatably connected to the fixing seat; A first transmission member is slidably provided on the side of the fixed seat, and the fixed seat is provided with a first elastic member for driving the first transmission member to extend out of the fixed seat. During the sliding process of the first transmission member, the first transmission member is connected to the driving shaft in a transmission manner so that the driving shaft rotates around a preset direction; a second transmission member is slidably provided on the bottom surface of the fixed seat, and the fixed seat is provided with a second elastic member for driving the second transmission member to extend out of the fixed seat. During the sliding process of the second transmission member, the second transmission member is connected to the driving shaft in a transmission manner so that the driving shaft rotates around a direction opposite to the preset direction; The transmission assembly includes a first gear, a second gear, a swing rod, a first connecting rod, a second connecting rod and a connecting shaft; the first gear is fixedly connected to the lifting slider, the second gear is meshed with the first gear, the second gear and the swing rod are fixedly sleeved on the connecting shaft, the first connecting rod and the second connecting rod are rotatably inserted into the connecting shaft, the end of the first connecting rod away from the connecting shaft is coaxially distributed with the first gear and rotatably connected, the end of the second connecting rod away from the connecting shaft is rotatably connected to the fixed seat, and the end of the swing rod away from the connecting shaft is convexly provided with a pushing head; wherein, when the first gear is at the lowest point, the pushing head pushes the first transmission member into the fixed seat, and when the first gear is at the highest point, the pushing head pushes the second transmission member into the fixed seat; The driver is used to deliver power to the transmission components; Among them, the driving shaft is connected with the rotating transmission member so that the embracing assembly switches between the first state, the second state and the third state during the lifting process of the first gear; in the first state, the first gear is located at the lowest point, the embracing arm opens the coordination groove, and the embracing side wall flips outward; in the second state, the first transmission member and the second transmission member are both disengaged from the pushing head, the embracing arm opens the coordination groove, and the embracing side wall flips downward; in the third state, the first gear is located at the highest point, and the embracing arm closes the coordination groove.

[0012] In some embodiments, the detection mechanism further includes a position sensor, and the position sensor is connected to one end of the embracing arm away from the rotating transmission member. In the third state, the position sensor faces the support member.

[0013] In some embodiments, a distance measuring through hole is formed through the sliding seat along the height direction, and in the second state, the position sensor is aligned with the distance measuring through hole.

[0014] In some embodiments, the detection mechanism further includes a vision component, which is located outside the surrounding arm. In the first state, the surrounding sidewall faces the vision component.

[0015] In some embodiments, the support groove is an arc groove, and the radius of curvature of the arc groove is smaller than the radius of curvature of the motor rotor shaft; through holes corresponding to the surrounding arms are formed through both ends of the support member in the height direction. In the third state, the end of the surrounding arm away from the rotation transmission member passes through the surrounding channel.

[0016] In a second aspect, an embodiment of the present application provides an automated motor assembly system, including the automated motor assembly system provided in the above embodiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of a working state of a motor rotor rotation balance test device provided by an embodiment of the present application; Figure 2 A schematic diagram of the structure of a conveying track provided by an embodiment of the present application; Figure 3 A schematic diagram of a working state of a rotor bracket in a first perspective provided by an embodiment of the present application; Figure 4 A schematic diagram of a working state of a rotor bracket in a second perspective provided by an embodiment of the present application; Figure 5 A schematic diagram of a working state of a detection mechanism provided by an embodiment of the present application; Figure 6 A schematic diagram of another working state of a detection mechanism provided by an embodiment of the present application; Figure 7 A schematic diagram of a working state of a surrounding component provided by an embodiment of the present application; Figure 8 A schematic diagram of another working state of a surrounding component provided by an embodiment of the present application; Figure 9 A schematic diagram of a working state of a second driving member provided by an embodiment of the present application; Figure 10 A schematic diagram of another working state of a second driving member provided by an embodiment of the present application; Figure 11Another working state schematic diagram of a second driving member provided by an embodiment of the present application; Figure 12 A schematic diagram of a cooperative working state of a surrounding component and a rotor bracket provided by an embodiment of the present application; Figure 13 Another schematic diagram of a cooperative working state of a surrounding component and a rotor bracket provided by an embodiment of the present application; Figure 14 A schematic diagram of a cooperative working state of a surrounding component and a detection mechanism provided by an embodiment of the present application; Figure 15 A top view of a support member of a rotor bracket provided by an embodiment of the present application.

[0019] Icon: 100 - Motor rotor rotation balance test device; 110 - Conveyor track; 111 - Track fixed section; 112 - Track lifting section; 1121 - Connecting rod; 120 - Rotor bracket; 121 - Sliding seat; 1211 - Distance measuring through hole; 122 - Support member; 1221 - Support plate; 12211 - Support groove; 12212 - Surrounding channel; 1222 - Support rod; 130 - Detection mechanism; 131 - Driving belt; 132 - Tensioning assembly; 133 - Detector; 134 - Inkjet printer; 135 - Surrounding component; 1351 - Fitting hoop; 13511 - Coordination groove; 1352 - Rotating transmission member; 1353 - Surrounding arm; 136 - Position sensor; 137 - Vision component; 140 - Second driving member; 141 - Vertical rail; 1411 - Lifting sliding groove; 1412 - Lifting slider; 142 - Lifting arm; 143 - Driving shaft; 144 - Fixed seat; 1441 - First transmission member; 1442 - Second transmission member; 145 - Transmission assembly; 1451 - First gear; 1452 - Second gear; 1453 - Swing rod; 14531 - Pushing head; 1454 - First connecting rod; 1455 - Second connecting rod; 1456 - Connecting shaft; 200 - Motor rotor; 210 - Motor rotor rotating shaft, 220 - Motor rotor iron core. Detailed implementation manners

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0021] Accordingly, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0022] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0023] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is customarily placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0024] In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0025] In addition, the terms "vertical", "parallel", etc. do not mean that the components are required to be absolutely vertical or parallel, but may be slightly inclined.

[0026] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. The technical solutions of the present application will be exemplarily described below through some embodiments.

[0027] See Figure 1 , in a first aspect, an embodiment of the present application provides a motor rotor rotation balance test device 100, including: a conveying track 110, a rotor bracket 120, a detection mechanism 130, and a power mechanism.

[0028] See Figure 2, the conveying track 110 includes a track fixed section 111 and a track lifting section 112 distributed and connected along the conveying direction. It should be noted that in the conveying track 110, the number of track fixed sections 111 and track lifting sections 112 is not limited; as an example, each track lifting section 112 is arranged between two track fixed sections 111, and the track fixed section 111 upstream of the track lifting section 112 is used to convey the product to be inspected to the track lifting section 112, and the product to be inspected is output through the track fixed section 111 downstream of the track lifting section 112 after the inspection is completed in the track lifting section 112.

[0029] In the present application, the conveying track 110 can be conventionally arranged, for example, two slide rails are arranged at intervals, and a slide groove is provided at the inner side, top, etc. of each slide rail; based on this, optionally, in the track lifting section 112, the two slide rails are connected by a connecting rod 1121, so as to facilitate the overall lifting of the track lifting section 112. It can be understood that the track fixed section 111 and the track lifting section 112 are connected, which means that the slide grooves of the two are connected.

[0030] See also Figure 3 and Figure 4 The rotor support 120 includes a sliding seat 121 and a plurality of supporting members 122 .

[0031] The sliding seat 121 is slidably matched with the conveying track 110 along the conveying direction. As an example, sliding blocks are provided on both sides of the sliding seat 121, and the sliding blocks can be slidably embedded in the sliding grooves of the sliding rails.

[0032] A plurality of support members 122 are fixed at intervals on the top of the sliding seat 121, and the parallel distribution direction of the support members 122 is, for example, perpendicular to the conveying direction of the conveying track 110; illustratively, there are two support members 122, and the two support members 122 are used to correspond to the two motor rotor shafts 210 at both ends of the motor rotor 200. A support groove 12211 for supporting the motor rotor shaft 210 is provided on the top of each support member 122.

[0033] Optionally, the support member 122 includes a support plate 1221 and a support rod 1222, the support rod 1222 extends along the height direction of the motor rotor rotation balance testing device 100, the top of the support rod 1222 is connected to the bottom middle area of ​​the support plate 1221, and the support groove 12211 is opened at the top of the support plate 1221.

[0034] See also Figure 5 The detection mechanism 130 includes a driving belt 131 , a tensioning assembly 132 and a detector 133 .

[0035] The drive belt 131 is located above the track lifting section 112 and is exemplarily in the form of a belt; when the rotor bracket 120 transports the motor rotor 200 to the track lifting section 112, the drive belt 131 corresponds to the motor rotor core 220 of the motor rotor 200 supported by the support member 122.

[0036] The tensioning assembly 132 is used to tension the drive belt 131; the detector 133 is used to detect the motor rotor 200, and its installation position corresponds to the motor rotor 200.

[0037] In this application, the tensioning assembly 132 and the detector 133 can be conventionally arranged. Among them, the tensioning assembly 132 is, for example, arranged as a tensioning wheel that slidably cooperates with the drive belt 131; the detector 133 is, for example but not limited to, arranged as a device for detecting the rotational balance force of the motor rotor shaft 210, a device for photographing the rotational attitude of the motor rotor 200, etc.

[0038] The power mechanism (not shown in the figure) includes a first driving member (not shown in the figure), a second driving member 140, and a third driving member (not shown in the figure); the first driving member is used to drive the rotor bracket 120 to slide relative to the conveying track 110 along the conveying direction, and it can output power to the sliding seat 121 or to the support member 122; the second driving member 140 is used to drive the track lifting section 112 to lift between the initial position and the raised position, and it can directly output power to the track lifting section 112 or drive the track lifting section 112 by lifting the rotor bracket 120. The second driving member 140 exemplarily directly drives the track lifting section 112 to lift; the third driving member is used to drive the drive belt 131 to transmit power.

[0039] In this application, the first driving member, the second driving member 140, and the third driving member can be conventionally arranged, for example but not limited to, arranged as robotic arms, rotating rollers, conveyor belts, conveyor sprockets, etc. driven by motors.

[0040] It should be noted that in the embodiments of this application, the motor rotor rotational balance test device 100 is provided with a base for installing and fixing some structures; in the case where the installation method is not specifically described, the relevant structures in the motor rotor rotational balance test device 100 can be installed and fixed at specific positions on the base by conventional connection methods.

[0041] See Figure 5 and Figure 6 , Figure 5 in which the track lifting section 112 is in the initial position, Figure 6The middle track lifting section 112 is in the raised position. Among them, when the rotor bracket 120 slides to the track lifting section 112 and the track lifting section 112 is in the raised position, the motor rotor 200 supported by the support member 122 is located at the detection position corresponding to the detector 133, and the motor rotor core 220 is slidably abutted below the drive belt 131.

[0042] The working principle of the motor rotor rotation balance test device 100 provided by the embodiment of the present application is as follows: First, the motor rotor shafts 210 at both ends of the motor rotor 200 are respectively placed in the support grooves 12211 of the two support members 122, so that the motor rotor 200 is supported on the top of the rotor bracket 120. Then, the rotor bracket 120 is driven by the first driving member to slide along the conveying direction of the conveying track 110, and the rotor bracket 120 supporting the motor rotor 200 is conveyed from the track fixing section 111 upstream of the track lifting section 112 to the track lifting section 112, so that the motor rotor 200 is located below the drive belt 131. Then, the track lifting section 112 is driven by the second driving member 140 to lift the rotor bracket 120 supporting the motor rotor 200 from the initial position to the raised position, so that the motor rotor core 220 is slidably abutted below the drive belt 131; under the tensioning action of the tensioning assembly 132, the drive belt 131 remains in a tensioned state and is in close sliding contact with the motor rotor core 220. Then, the drive belt 131 is driven by the third driving member, and the drive belt 131 drives the motor rotor 200 to rotate. During this process, the rotation balance of the motor rotor 200 is detected by the detector 133. Finally, after the detection is completed, the third driving member is stopped; the track lifting section 112 is driven by the second driving member 140 to lower the rotor bracket 120 supporting the motor rotor 200 from the raised position to the initial position; the rotor bracket 120 supporting the motor rotor 200 is conveyed from the track lifting section 112 to the downstream track fixing section 111 by driving the rotor bracket 120 along the conveying direction of the conveying track 110 by the first driving member.

[0043] The motor rotor rotation balance test device 100 provided by the embodiment of the present application supports the motor rotor 200 on the top of the rotor bracket 120 through the support member 122, and slidably mates the rotor bracket 120 with the conveying track 110. By driving the rotor bracket 120, the pipeline-type conveying of the motor rotor 200 can be realized; when the rotor bracket 120 drives the motor rotor 200 to be conveyed to the track lifting section 112, the motor rotor 200 can be moved to the detection position by driving the track lifting section 112; moreover, the driving belt 131 is arranged above the track lifting section 112 and is kept in tension by the tensioning assembly 132. Each time a test is performed, when the motor rotor 200 is lifted to the detection position, it is automatically matched with the driving belt 131, and there is no need to install and disassemble the driving belt 131. It can be seen that based on the design of the present application, the pipeline-type conveying of the motor rotor 200 can be automatically realized and the motor rotor 200 can be moved to the detection position, and there is no need to install and disassemble the driving belt 131 each time a test is performed, which is more time-saving and labor-saving in operation.

[0044] Optionally, the detection mechanism 130 further includes an inkjet printer 134. When the motor rotor 200 supported by the support member 122 is located at the detection position corresponding to the detector 133, the inkjet printer 134 is located on the side of the motor rotor iron core 220, and the inkjet part of the inkjet printer 134 faces the motor rotor iron core 220.

[0045] In this design, the motor rotor 200 is marked by the inkjet printer 134. On the one hand, it can identify the motor rotor 200 one by one, which is convenient to correspond the test results with the motor rotor 200 one by one; on the other hand, it can mark the starting position before the rotation test of the motor rotor 200. Based on the rotation time and rotation speed during the detection, the rotation position can be corresponding matched with the detection data, and more detailed dynamic balance test results can be obtained, which is beneficial to perform dynamic balance adjustment on the unqualified motor rotor 200 after the detection.

[0046] See Figure 5 and Figure 6 , in some embodiments, the detection mechanism 130 is further provided with a surrounding component 135. The surrounding component 135 corresponds to the motor rotor shaft 210 at the detection position, and the surrounding component 135 is configured to be able to switch between the state of releasing the motor rotor shaft 210 and the state of surrounding the motor rotor shaft 210. As Figure 5 shown, when the track lifting section 112 is in the initial position, the surrounding component 135 is in the state of releasing the motor rotor shaft 210; as Figure 6 shown, when the track lifting section 112 is in the raised position, the surrounding component 135 is in the state of surrounding the motor rotor shaft 210.

[0047] It should be noted that when the surrounding component 135 is in the state of surrounding the rotating shaft 210 of the motor rotor, it only partially surrounds the rotating shaft 210 of the motor rotor, which is used to position the rotating shaft 210 of the motor rotor, effectively preventing the rotating shaft 210 of the motor rotor from displacing in the support groove 12211 or even disengaging from the support groove 12211; in this state, the surrounding component 135 does not hold the rotating shaft 210 of the motor rotor tightly and does not prevent the rotating shaft 210 of the motor rotor from rotating.

[0048] In the present application, the setting method of the surrounding component 135 is not limited. Without special description, for example, but not limited to, it can be in the form of mechanical claws, hoops, etc.

[0049] See Figure 7 and Figure 8 , as an example, the surrounding component 135 includes a fitting hoop 1351, a rotating transmission member 1352 and surrounding arms 1353. The bottom of the fitting hoop 1351 is provided with a coordination groove 13511 matching the rotating shaft 210 of the motor rotor, which is used for the top of the rotating shaft 210 of the motor rotor to extend into and slidably fit with the rotating shaft 210 of the motor rotor. The surrounding arms 1353 are distributed at intervals on both sides of the coordination groove 13511. The surrounding arms 1353 are rotatably connected to the fitting hoop 1351 through the rotating transmission member 1352. The surrounding arms 1353 open (as shown in Figure 7 ) and close the coordination groove 13511 (as shown in Figure 8 ) by rotation, so that the surrounding component 135 can switch between the state of releasing the rotating shaft 210 of the motor rotor and the state of surrounding the rotating shaft 210 of the motor rotor.

[0050] In the present application, without special description, the rotation driving member directly driving the rotating transmission member 1352 can be set in a conventional manner.

[0051] In this design, the fitting hoop 1351 is slidably fitted with the top of the rotating shaft 210 of the motor rotor, and the surrounding arms 1353 surround the rotating shaft 210 of the motor rotor from both sides of the rotating shaft 210 of the motor rotor by rotation. The method of switching the working state of the surrounding arms 1353 by rotation is convenient to control; moreover, the surrounding coverage range is large and the positioning effect is good.

[0052] See Figure 8 , further, the surrounding arm 1353 has a surrounding side wall corresponding to the rotating shaft 210 of the motor rotor. The detector 133 includes a pressure sensor arranged on the surrounding side wall. The surface of the pressure sensor is provided with a wear-resistant layer matching the rotating shaft 210 of the motor rotor, and the wear-resistant layer is used for slidably fitting with the rotating shaft 210 of the motor rotor.

[0053] In the above solution, the pressure sensor is, for example but not limited to, an arc-shaped piezoelectric sheet configured to match the rotating shaft 210 of the motor rotor; in other solutions, for example, the pressure sensor is embedded in the surrounding sidewall. The wear-resistant layer is, for example but not limited to, attached to the surface of the pressure sensor by means such as pasting or spraying; since the wear-resistant layer undergoes sliding friction with the rotating shaft 210 of the motor rotor during the detection process, a certain degree of wear will occur after long-term detection. The wear-resistant layer in the form of pasting is convenient for directly replacing the wear-resistant layer, while the wear-resistant layer in the form of attachment such as spraying has better connection stability with the pressure sensor.

[0054] Based on the above technical solution, the pressure sensor detects the force exerted on the side surface by the rotating shaft 210 of the motor rotor during rotation, and obtains the centrifugal and vibration conditions of the rotating shaft 210 of the motor rotor during rotation. In this dynamic balance detection method, the detector 133 is in direct contact with the motor rotor 200, and the detection result is more direct, accurate, and reliable.

[0055] See Figure 1 , Figures 9 - 11 , in some embodiments, the second driving member 140 includes a vertical rail 141, a lifting arm 142, a driving shaft 143, a fixed seat 144, a transmission assembly 145, and a driver (not shown in the figure).

[0056] The vertical rail 141 is provided with a lifting chute 1411, and a lifting slider 1412 is slidably accommodated in the lifting chute 1411; it can be understood that this lifting direction is the height direction of the motor rotor rotation balance testing device 100.

[0057] The lifting arm 142 is connected between the lifting slider 1412 and the rail lifting section 112. Based on this, when the lifting slider 1412 rises and falls in the lifting chute 1411, the rail lifting section 112 is driven to rise and fall by the lifting arm 142, thereby realizing the lifting of the rail lifting section 112 between the initial position and the raised position.

[0058] The driving shaft 143 is rotatably connected to the fixed seat 144; one end of the driving shaft 143 extends into the interior of the fixed seat 144, and the other end of the driving shaft 143 extends out of the fixed seat 144.

[0059] A first transmission member 1441 is slidably inserted through the side surface of the fixed seat 144. The first transmission member 1441 is, for example, in the form of a rack. The fixed seat 144 is provided with a first elastic member (not shown in the figure) that drives the first transmission member 1441 to extend out of the fixed seat 144. The first elastic member is, for example, a spring. An external force can push the first transmission member 1441 into the fixed seat 144. In the state without an external force, the first elastic member pops the first transmission member 1441 out of the fixed seat 144 and towards the outside of the fixed seat 144. During the sliding process of the first transmission member 1441, it is in driving connection with the drive shaft 143 to cause the drive shaft 143 to rotate in a preset direction. Among them, the drive shaft 143 is, for example, in driving connection with a transmission gear. During the sliding process of the first transmission member 1441 sliding into and out of the fixed seat 144, the transmission gear meshes with the first transmission member 1441 in the form of a rack, thereby causing the drive shaft 143 to rotate.

[0060] A second transmission member 1442 is slidably inserted through the bottom surface of the fixed seat 144. The second transmission member 1442 is, for example, in the form of a rack. The fixed seat 144 is provided with a second elastic member (not shown in the figure) that drives the second transmission member 1442 to extend out of the fixed seat 144. The second elastic member is, for example, a spring. An external force can push the second transmission member 1442 into the fixed seat 144. In the state without an external force, the second elastic member pops the second transmission member 1442 out of the fixed seat 144 and towards the outside of the fixed seat 144. During the sliding process of the second transmission member 1442, it is in driving connection with the drive shaft 143 to cause the drive shaft 143 to rotate in a direction opposite to the preset direction. Among them, the drive shaft 143 is, for example, in driving connection with a transmission gear. During the sliding process of the second transmission member 1442 sliding into and out of the fixed seat 144, the transmission gear meshes with the second transmission member 1442 in the form of a rack, thereby causing the drive shaft 143 to rotate.

[0061] Based on the above design, the rotation direction of the drive shaft 143 is illustrated by the following example. When the first transmission member 1441 slides into the fixed seat 144, the drive shaft 143 rotates clockwise. Correspondingly, when the second transmission member 1442 slides into the fixed seat 144, the drive shaft 143 rotates counterclockwise. During the sliding process of the second transmission member 1442, the drive shaft 143 is in the opposite direction to the preset direction. That is to say, when the second transmission member 1442 slides into the fixed seat 144, the drive shaft 143 rotates counterclockwise. Correspondingly, when the second transmission member 1442 slides into the fixed seat 144, the drive shaft 143 rotates clockwise.

[0062] It should be noted that the driving connection methods between the first transmission member 1441, the second transmission member 1442 and the drive shaft 143 are not limited and can be set conventionally. In addition to the above forms of gears and racks, for example, it can also be the form of cooperation between a turbine and a worm, etc.

[0063] See Figures 9 - 11, the transmission assembly 145 includes a first gear 1451, a second gear 1452, a swing rod 1453, a first connecting rod 1454, a second connecting rod 1455, and a connecting shaft 1456.

[0064] The first gear 1451 is fixedly connected to the lifting slider 1412 so that the first gear 1451 can move up and down following the lifting slider 1412. It should be noted that the fixed connection between the first gear 1451 and the lifting slider 1412 means that when the first gear 1451 moves up and down following the lifting slider 1412, it will not rotate relative to the lifting slider 1412. Additionally, the form of the first gear 1451 is not limited to a circular gear. In some exemplary embodiments of the present application, the first gear 1451 is a sector gear, and its central angle is, for example, 90°.

[0065] The second gear 1452 meshes with the first gear 1451. Both the second gear 1452 and the swing rod 1453 are fixedly sleeved on the connecting shaft 1456. The first connecting rod 1454 and the second connecting rod 1455 are rotatably passed through the connecting shaft 1456. One end of the first connecting rod 1454 away from the connecting shaft 1456 is coaxially distributed and rotatably connected to the first gear 1451. One end of the second connecting rod 1455 away from the connecting shaft 1456 is rotatably connected to the fixed seat 144. A pushing head 14531 protrudes from one end of the swing rod 1453 away from the connecting shaft 1456. Among them, when the first gear 1451 is at the lowest point, the pushing head 14531 pushes the first transmission member 1441 into the fixed seat 144. When the first gear 1451 is at the highest point, the pushing head 14531 pushes the second transmission member 1442 into the fixed seat 144.

[0066] As an example, along the axial direction of the connecting shaft 1456, the second gear 1452, the first connecting rod 1454, the swing rod 1453, and the second connecting rod 1455 are arranged in sequence. The fixed seat 144 is located on the side of the second connecting rod 1455 away from the swing rod 1453. The pushing head 14531 protrudes toward the side close to the second connecting rod 1455 and extends beyond the second connecting rod 1455. Based on this arrangement order, it is convenient for the cooperation and connection between the components in the transmission assembly 145; at the same time, it is convenient for the swing rod 1453 not to be interfered by other components in the transmission assembly 145 during the swinging process.

[0067] In the design of the above-mentioned second driving member 140, the working principle of the transmission assembly is as follows: When the lifting slider 1412 slides upward from the bottom of the lifting chute 1411, the first gear 1451 rises from the bottom following the lifting slider 1412. During this process, since the second gear 1452 meshes with the first gear 1451, the second gear 1452 rotates on its own axis and revolves around the first gear 1451; and since the swing rod 1453 is fixedly connected to the second gear 1452 through the connecting shaft 1456, the swing rod 1453 swings following the movement of the second gear 1452, causing the pushing head 14531 to swing from the position where it pushes the first transmission member 1441 into the fixed seat 144 to a position where it disengages from the first transmission member 1441, and then to a position where it pushes the second transmission member 1442 into the fixed seat 144.

[0068] The driver is used to deliver power to the transmission assembly 145. It can be understood that the object of the driver's transmission connection is not limited. It can be an indirect drive, for example, the driver is transmission-connected to the lifting slider 1412; it can be a direct drive, for example, transmission-connected to the first gear 1451 to drive the lifting of the first gear 1451, or transmission-connected to the connecting shaft 1456 to drive the rotation of the connecting shaft 1456.

[0069] The drive shaft 143 is transmission-connected to the rotating transmission member 1352 so that during the lifting process of the first gear 1451, the surrounding assembly 135 switches between the first state, the second state, and the third state. The transmission method between the drive shaft 143 and the rotating transmission member 1352 is not limited, for example, but not limited to belt drive, chain drive, etc.

[0070] In the first state, the first gear 1451 is at the lowest point, the surrounding arm 1353 opens the coordination groove 13511, and the surrounding side wall turns outward; in the second state, both the first transmission member 1441 and the second transmission member 1442 disengage from the pushing head 14531, the surrounding arm 1353 opens the coordination groove 13511, and the surrounding side wall turns downward; in the third state, the first gear 1451 is at the highest point, and the surrounding arm 1353 closes the coordination groove 13511.

[0071] In the design of the above second driving member 140, the linkage between the transmission assembly and the surrounding assembly 135 has the following working principle: In the second state, both the first transmission member 1441 and the second transmission member 1442 are disengaged from the push head 14531. At this time, the push head 14531 does not drive the drive shaft 143 to rotate through the first transmission member 1441 and the second transmission member 1442. That is to say, the transmission assembly does not output rotational power to the rotational transmission member 1352 of the surrounding assembly 135 through the drive shaft 143 at this time. In the first state, the first gear 1451 is at the lowest point. At this time, the push head 14531 pushes the first transmission member 1441 into the fixed seat 144. Compared with the second state, the first transmission member 1441 drives the drive shaft 143 to rotate a certain angle around the preset direction. The drive shaft 143 drives the rotational transmission member 1352 and the surrounding arm 1353 to rotate a certain angle. Among them, through the transmission design, the surrounding arm 1353 flips outward, so that the surrounding arm 1353 opens the coordination groove 13511 and the surrounding side wall flips outward. In the third state, the first gear 1451 is at the highest point. At this time, the push head 14531 pushes the second transmission member 1442 into the fixed seat 144. Compared with the second state, the second transmission member 1442 drives the drive shaft 143 to rotate a certain angle around an angle opposite to the preset direction. Among them, through the transmission design, the surrounding arm 1353 flips inward, so that the surrounding arm 1353 closes the coordination groove 13511.

[0072] Based on the above design of the second driving member 140, when the second driving member 140 outputs power, the lifting slider 1412 moves up and down, and drives the track lifting section 112 to move up and down; at the same time, under the transmission action of each component in the transmission assembly, the swing rod 1453 drives the push head 14531 to swing to different working positions. The swing rod 1453 outputs different rotational actions to the rotational transmission member 1352 of the surrounding assembly 135 indirectly through the drive shaft 143 at different working positions, so that the surrounding assembly 135 switches between the first state, the second state and the third state, and adjusts the opening and closing states of the coordination groove 13511. It can be seen that based on this design, the second driving member 140 can adjust the lifting of the track lifting section 112 and the opening and closing of the surrounding assembly 135 at the same time, and can adjust the cooperation state between the surrounding assembly 135 and the motor rotor 200 while the lifting motor rotor 200 is working.

[0073] At the same time, based on the above design, since the surrounding assembly 135 has a first state, a second state and a third state, in the first state, the surrounding side wall flips outward, which is convenient for observing the wear condition of the wear-resistant layer on the surface of the pressure sensor; in the second state, the surrounding side wall flips downward, approaching the position where the surrounding arm 1353 closes the coordination groove 13511. The second state is used as a transition stage, which is convenient for the push head 14531 to quickly and reliably switch to the third state where the surrounding arm 1353 closes the coordination groove 13511 when gradually pushing the second transmission member 1442.

[0074] See Figure 12, in some embodiments, the detection mechanism 130 further includes a position sensor 136. One end of the surrounding arm 1353 away from the rotation transmission member 1352 is connected with the position sensor 136. In the third state, the position sensor 136 faces the support member 122.

[0075] In the above design, the position sensor 136 is, for example but not limited to, a laser position sensor 136. When the position sensor 136 faces the support member 122 in the third state, by measuring the distance between the position sensor 136 and the support member 122, it is possible to determine whether the surrounding arm 1353 has rotated to a specific accurate position, which is beneficial to detecting the motor rotor 200 at a more accurate position to be measured and is beneficial to improving the accuracy of the detection result.

[0076] See Figure 13 , in some embodiments, the sliding seat 121 is provided with a ranging through hole 1211 along the height direction. In the second state, the position sensor 136 is aligned with the ranging through hole 1211.

[0077] In the above design, by detecting the distance from the position sensor 136 to the lower part in the second state, it is possible to determine whether the position sensor 136 is aligned with the ranging through hole 1211. When the position sensor 136 is aligned with the ranging through hole 1211, it means that in the conveying direction of the conveying track 110, the sliding seat 121 drives the motor rotor 200 to move to an accurate position. At this time, the lifting section 112 of the lifting track can accurately engage the motor rotor shaft 210 into the coordination groove 13511, which is beneficial to detecting the motor rotor 200 at a more accurate position to be measured and is beneficial to improving the accuracy of the detection result; at the same time, it avoids the impact on the surrounding component 135 caused by position deviation.

[0078] See Figure 14 , in some embodiments, the detection mechanism 130 further includes a vision component 137. The vision component 137 is, for example, a camera; the vision component 137 is located outside the surrounding arm 1353 and corresponds to the surrounding arm 1353 one by one. In the first state, the surrounding side wall faces the vision component 137.

[0079] In the above design, by providing the vision component 137 corresponding to the surrounding arm 1353, it is convenient to monitor and observe the wear condition of the wear-resistant layer; moreover, based on the design of the above second driving member 140, in the first state, the surrounding side wall can be turned outward, and the vision component 137 can be arranged outside the surrounding arm 1353. There is a larger space outside the surrounding arm 1353, which is convenient for the installation of the vision component 137.

[0080] See Figure 15, in some embodiments, the support groove 12211 is an arc groove, and the radius of curvature of the arc groove is smaller than the radius of curvature of the motor rotor shaft 210; through holes corresponding to the surrounding arms 1353 are formed through both ends of the support member 122 in the height direction, see Figure 12 and Figure 15 , in the third state, the end of the surrounding arm 1353 away from the rotation transmission member 1352 passes through the surrounding channel 12212.

[0081] Based on the solution where the position sensor 136 is connected to the surrounding arm 1353, exemplarily, in the third state, the position sensor 136 faces the side wall of the surrounding channel 12212 opposite to the opening.

[0082] In the above design, the support groove 12211 is designed as an arc groove, which can smoothly contact the motor rotor shaft 210; among them, the radius of curvature of the arc groove is smaller than the radius of curvature of the motor rotor shaft 210, that is to say, the radius of the arc groove is larger than the radius of the motor rotor shaft 210, so that the arc groove only partially contacts the motor rotor shaft 210, reducing the wear of the support groove 12211 during the detection of the motor rotor 200, and thus there is no need to frequently replace the rotor bracket 120. Based on this, through holes 12212 are formed through both ends of the support member 122 in the height direction for the surrounding arms 1353 to pass through. Therefore, while reducing the contact range between the motor rotor shaft 210 and the support member 122, the surrounding arms 1353 can contact the motor rotor shaft 210 more, and can maintain a good positioning effect on the motor rotor shaft 210, which is beneficial to improving the accuracy of the detection result.

[0083] In a second aspect, an embodiment of the present application provides an automated motor assembly system, including the automated motor assembly system provided in the above embodiment.

[0084] In the present application, other functional devices of the automated motor assembly system can be set according to conventional requirements. Upstream of the motor rotor rotational balance testing device 100, for example, but not limited to, a feeding device for the motor rotor 200 can be set. Downstream of the motor rotor rotational balance testing device 100, for example, but not limited to, a discharging device for the motor rotor 200, a sorting device for the motor rotor 200, etc., a post-detection adjustment device for the motor rotor 200, an assembly device for the motor rotor 200, etc. The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A motor rotor rotation balance test device, characterized in that Including: A conveying track, which includes a fixed track section and a lifting track section that are distributed and connected along the conveying direction; A rotor bracket, which includes a sliding seat and a plurality of supporting members. The sliding seat is slidably matched with the conveying track along the conveying direction. The plurality of supporting members are fixedly spaced on the top of the sliding seat. A supporting groove for supporting the rotating shaft of the motor rotor is provided at the top of each supporting member; A detection mechanism, which includes a driving belt, a tensioning assembly and a detector. The driving belt is located above the lifting track section. The tensioning assembly is used to tension the driving belt. The detector is used to detect the motor rotor; A power mechanism, which includes a first driving member, a second driving member and a third driving member. The first driving member is used to drive the rotor bracket to slide relative to the conveying track along the conveying direction. The second driving member is used to drive the lifting track section to lift between an initial position and a raised position. The third driving member is used to drive the driving belt to drive; Wherein, when the rotor bracket slides to the lifting track section and the lifting track section is at the raised position, the motor rotor supported by the supporting member is located at a detection position corresponding to the detector, and the motor rotor core is slidably abutted against the lower side of the driving belt.

2. The motor rotor rotation balance test device according to claim 1, wherein The detection mechanism is further provided with an encircling assembly, which corresponds to the rotating shaft of the motor rotor at the detection position. The encircling assembly is configured to be able to switch between a state of releasing the rotating shaft of the motor rotor and a state of encircling the rotating shaft of the motor rotor.

3. The motor rotor rotation balance test device according to claim 2, wherein, The encircling assembly includes a mating hoop, a rotating transmission member and encircling arms. A coordination groove matching the rotating shaft of the motor rotor is provided at the bottom of the mating hoop. The encircling arms are spaced on both sides of the coordination groove. The encircling arms are rotatably connected to the mating hoop through the rotating transmission member. The encircling arms open and close the coordination groove by rotation, so that the encircling assembly can switch between a state of releasing the rotating shaft of the motor rotor and a state of encircling the rotating shaft of the motor rotor.

4. The motor rotor rotation balance test device according to claim 3, characterized in that, The encircling arm has an encircling side wall corresponding to the rotating shaft of the motor rotor. The detector includes a pressure sensor provided on the encircling side wall. A wear-resistant layer matching the rotating shaft of the motor rotor is provided on the surface of the pressure sensor. The wear-resistant layer is used to slidably fit with the rotating shaft of the motor rotor.

5. The motor rotor rotation balance testing device according to claim 4, wherein The second driving member includes a vertical rail, a lifting arm, a driving shaft, a fixed seat, a transmission assembly and a driver; The vertical rail is provided with a lifting chute, and a lifting slider is slidably accommodated in the lifting chute; The lifting arm is connected between the lifting slider and the lifting track section; The driving shaft is rotatably connected to the fixed seat; A first transmission member is slidably disposed through a side surface of the fixed seat. The fixed seat is provided with a first elastic member for driving the first transmission member to extend out of the fixed seat. During the sliding process of the first transmission member, it is in driving connection with the drive shaft to enable the drive shaft to rotate around a preset direction. A second transmission member is slidably disposed through a bottom surface of the fixed seat. The fixed seat is provided with a second elastic member for driving the second transmission member to extend out of the fixed seat. During the sliding process of the second transmission member, it is in driving connection with the drive shaft to enable the drive shaft to rotate around a direction opposite to the preset direction. The transmission assembly includes a first gear, a second gear, a swing rod, a first connecting rod, a second connecting rod, and a connecting shaft. The first gear is fixedly connected to the lifting slider. The second gear meshes with the first gear. The second gear and the swing rod are both fixedly sleeved on the connecting shaft. The first connecting rod and the second connecting rod are rotatably disposed through the connecting shaft. One end of the first connecting rod away from the connecting shaft is coaxially distributed with and rotatably connected to the first gear. One end of the second connecting rod away from the connecting shaft is rotatably connected to the fixed seat. A pushing head protrudes from one end of the swing rod away from the connecting shaft. Wherein, when the first gear is at the lowest point, the pushing head pushes the first transmission member into the fixed seat. When the first gear is at the highest point, the pushing head pushes the second transmission member into the fixed seat. The driver is used to supply power to the transmission assembly. Wherein, the drive shaft is in driving connection with the rotating transmission member so that during the lifting process of the first gear, the surrounding assembly switches between a first state, a second state, and a third state. In the first state, the first gear is at the lowest point, the surrounding arm opens the coordination groove, and the surrounding side wall turns outward. In the second state, both the first transmission member and the second transmission member are disengaged from the pushing head, the surrounding arm opens the coordination groove, and the surrounding side wall turns downward. In the third state, the first gear is at the highest point, and the surrounding arm closes the coordination groove.

6. The motor rotor rotation balance test device according to claim 5, characterized in that The detection mechanism further includes a position sensor. The position sensor is connected to one end of the surrounding arm away from the rotating transmission member. In the third state, the position sensor faces the support member.

7. The motor rotor rotation balance test device according to claim 6, characterized in that, The sliding seat is provided with a ranging through hole in the height direction. In the second state, the position sensor is aligned with the ranging through hole.

8. The motor rotor rotation balance test device according to claim 5, characterized in that, The detection mechanism further includes a vision component. The vision component is located outside the surrounding arm. In the first state, the surrounding side wall faces the vision component.

9. The motor rotor rotation balance test device according to any one of claims 5 to 8, characterized in that The support groove is an arc groove, and the radius of curvature of the arc groove is smaller than the radius of curvature of the motor rotor shaft. Through holes corresponding to the surrounding arms are provided through both ends of the support member in the height direction. In the third state, one end of the surrounding arm away from the rotating transmission member passes through the surrounding through hole.

10. An automated motor assembly system, characterized in that, Including the motor rotor rotation balance test device according to any one of claims 1 to 9.

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