Motor rotating shaft displacement detection equipment

Abstract

The utility model provides motor rotating shaft displacement detection equipment, which comprises a rack, a workbench, a rotary feeding mechanism, a detection platform, a detection mechanism, a blanking conveying mechanism and a carrying feeding mechanism, and is characterized in that the detection platform comprises a mounting base, a placement jig, a jacking cylinder and a jacking vertical rod; the detection mechanism comprises a mounting vertical frame, a first lifting driving assembly, a lifting sliding plate, a circuit board pressing block, a second lifting driving assembly and a displacement sensor, and the design has the advantages that displacement detection can be carried out on the motor assembled with the circuit board, and the circuit board can be firmly fixed, so that the accuracy of motor rotating shaft displacement detection is improved; and the detection data of the movement amount has more reference significance.

Description

Technical Field

[0001] This utility model relates to the field of motor testing equipment, and in particular to a motor shaft axial movement testing device. Background Technology

[0002] Axial runout refers to the unavoidable slight movement of the motor shaft along its axial direction during operation. In practical use, a certain degree of shaft runout is permissible. Therefore, after the motor is manufactured, it is necessary to detect the amount of shaft runout to determine whether the motor is a qualified product. Current testing equipment is designed to test the motor individually. However, in actual use, the motor is often fixed to a circuit board, with the motor shaft in a vertical position on the circuit board. Therefore, when testing the amount of motor shaft runout, it would be more meaningful to measure it using the plane of the circuit board as a reference. Thus, it is necessary to develop a motor shaft runout detection device to detect the amount of motor shaft runout after assembly with the circuit board. Utility Model Content

[0003] The purpose of this invention is to provide a device for detecting the axial movement of a motor shaft to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A motor shaft axial movement detection device includes a frame, a worktable, a rotary feeding mechanism, a detection platform, a detection mechanism, a discharge conveying mechanism, and a handling feeding mechanism. The worktable is horizontally fixed on the frame. The rotary feeding mechanism, the detection platform, and the discharge conveying mechanism are fixed above the worktable from left to right. The detection mechanism is fixed on the worktable and corresponds to one side of the detection platform. The handling feeding mechanism is fixed on the worktable and corresponds to the other side of the detection platform. The handling feeding mechanism is used to move the motor from the rotary feeding mechanism to the detection platform and from the detection platform to the discharge conveying mechanism.

[0006] The testing platform includes a mounting base, a placement fixture, a lifting cylinder, and a lifting rod. The lower end of the mounting base is fixed to the worktable, and the placement fixture is fixed to the upper end of the mounting base. The placement fixture has a first clearance hole in its middle. The lifting cylinder is fixed to the mounting base, and the lifting rod is fixed to the power output end of the lifting cylinder and corresponds to the lower part of the first clearance hole. The testing mechanism includes a mounting frame, a first lifting drive assembly, a lifting slide plate, a circuit board clamping block, a second lifting drive assembly, and a displacement sensor. The lower end of the mounting frame is fixed to the worktable, and the first lifting drive assembly is fixed to the upper end of the mounting frame. The lifting slide plate is fixed to the power output end of the first lifting drive assembly and is slidably connected to the mounting frame. The circuit board clamping block is fixed to the lifting slide plate, and the middle part of the circuit board clamping block has a second clearance hole corresponding to the upper part of the first clearance hole. The outer periphery of the circuit board clamping block has multiple sets of downward protruding clamping bosses. The second lifting drive assembly is fixed to the lifting slide plate, and the displacement sensor is fixed to the power output end of the second lifting drive assembly. The detection end of the displacement sensor corresponds to the upper part of the second clearance hole.

[0007] Further description of the present invention: The placement fixture is provided with an upwardly protruding positioning post, which is located on one side of the first clearance hole.

[0008] Further description of the present invention: The rotary feeding mechanism includes a first base, a rotary drive assembly, a rotary plate and a feeding fixture. The first base is fixed on the workbench, the rotary drive assembly is fixed above the first base, the middle part of the rotary plate is fixed to the power output end of the rotary drive assembly, and two sets of feeding fixtures are provided and fixed at both ends of the rotary plate respectively.

[0009] Further description of the present invention: The unloading conveying mechanism includes a qualified product conveying component and a defective product conveying component, both fixed on the workbench. One end of the qualified product conveying component and one end of the defective product conveying component both correspond to the material handling and loading mechanism.

[0010] Further description of the present invention: The material handling and loading mechanism includes a second base, an X-axis drive assembly, a Y-axis drive assembly, a drive plate, a first handling robot and a second handling robot. The second base is fixed on the worktable, the X-axis drive assembly is fixed on the second base, the Y-axis drive assembly is fixed at the power output end of the X-axis drive assembly, the drive plate is fixed at the power output end of the Y-axis drive assembly, and the first handling robot and the second handling robot are respectively fixed on the left and right sides of the drive plate.

[0011] Further description of the present invention: The second handling robot includes a Y-axis cylinder, a Z-axis cylinder, a clamping cylinder and grippers. The Y-axis cylinder is fixed on the drive plate, the Z-axis cylinder is fixed on the power output end of the Y-axis cylinder, the clamping cylinder is fixed on the power output end of the Z-axis cylinder, and two sets of grippers are provided and respectively fixed on the two sets of power output ends of the clamping cylinder.

[0012] The beneficial effects of this utility model are as follows: In the previous process, the motor is installed on the circuit board and fed to one end of the rotary feeding mechanism. The rotary feeding mechanism transports the motor to the other end, and the conveying feeding mechanism places the motor on the testing platform. The lower end of the circuit board is in close contact with the upper end of the placement fixture, and the motor shaft corresponds to the first clearance hole. Then, the first lifting drive assembly drives the lifting slide plate to descend, so that the pressing boss on the circuit board pressure block fixes the circuit board on the placement fixture. Next, the second lifting drive assembly drives the displacement sensor to descend. After the probe of the displacement sensor contacts the motor shaft, it records the position information. Subsequently, the lifting cylinder drives the lifting rod to push the bottom of the motor shaft upward, so that the motor shaft moves upward. The displacement sensor records the position information at this time and calculates it with the position information before the upward movement to obtain the amount of upward movement of the motor rotor. After the test, the testing platform and the testing mechanism are reset. The tested motor is transported to the unloading conveying mechanism by the conveying robot, and the unloading conveying mechanism transports the motor to the next process. The advantage of this design is that it can detect the axial movement of the motor after it is assembled with the circuit board, and it can also fix the circuit board firmly, thereby improving the accuracy of the motor shaft axial movement detection and making the axial movement detection data more meaningful. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of the present invention (the frame is not shown);

[0014] Figure 2 This is a structural diagram of the rotary feeding mechanism in this utility model;

[0015] Figure 3 This is a structural diagram of the testing platform in this utility model;

[0016] Figure 4 This is a structural diagram of the detection mechanism in this utility model;

[0017] Figure 5 This is a structural diagram of the material handling and loading mechanism in this utility model;

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Workbench; 2. Rotary feeding mechanism; 21. First base; 22. Rotary drive assembly; 23. Rotary plate; 24. Feeding fixture; 3. Inspection platform; 31. Mounting base; 32. Fixture placement; 321. First clearance hole; 322. Positioning column; 33. Lifting cylinder; 34. Lifting vertical rod; 4. Inspection mechanism;

[0020] 41. Mounting frame; 42. First lifting drive assembly; 43. Lifting slide plate; 44. Circuit board clamping block;

[0021] 441. Second clearance hole; 442. Pressing boss; 45. Second lifting drive assembly; 46. Displacement sensor; 5. Unloading conveyor mechanism; 51. Qualified product conveying assembly; 52. Defective product conveying assembly; 6. Handling and loading mechanism; 61. Second base; 62. X-axis drive assembly; 63. Y-axis drive assembly;

[0022] 64. Drive board; 65. First handling robot; 66. Second handling robot; 661. Y-axis cylinder; 662. Z-axis cylinder; 663. Clamping cylinder; 664. Gripper. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] like Figures 1 to 5 As shown, a motor shaft misalignment detection device includes a frame, a worktable 1, a rotary feeding mechanism 2, a detection platform 3, a detection mechanism 4, a discharge conveying mechanism 5, and a handling feeding mechanism 6. The worktable 1 is horizontally fixed on the frame. The rotary feeding mechanism 2, the detection platform 3, and the discharge conveying mechanism 5 are fixed above the worktable 1 from left to right. The detection mechanism 4 is fixed on the worktable 1 and corresponds to one side of the detection platform 3. The handling feeding mechanism 6 is fixed on the worktable 1 and corresponds to the other side of the detection platform 3. The handling feeding mechanism 6 is used to transport the motor from the rotary feeding mechanism 2 to the detection platform 3 and from the detection platform 3 to the discharge conveying mechanism 5.

[0025] The testing platform 3 includes a mounting base 31, a placement fixture 32, a lifting cylinder 33, and a lifting rod 34. The lower end of the mounting base 31 is fixed to the workbench 1, and the placement fixture 32 is fixed to the upper end of the mounting base 31. The placement fixture 32 has a first clearance hole 321 in the middle. The lifting cylinder 33 is fixed to the mounting base 31, and the lifting rod 34 is fixed to the power output end of the lifting cylinder 33 and corresponds to the lower part of the first clearance hole 321. The testing mechanism 4 includes a mounting frame 41, a first lifting drive assembly 42, a lifting slide plate 43, a circuit board pressure block 44, a second lifting drive assembly 45, and a displacement sensor 46. The lower end of the mounting frame 41 is fixed to the workbench 1. On platform 1, the first lifting drive assembly 42 is fixed to the upper end of the mounting frame 41, the lifting slide plate 43 is fixed to the power output end of the first lifting drive assembly 42 and is slidably connected to the mounting frame 41, the circuit board pressure block 44 is fixed on the lifting slide plate 43, the middle part of the circuit board pressure block 44 is provided with a second clearance hole 441 corresponding to the upper part of the first clearance hole 321, the outer periphery of the circuit board pressure block 44 is provided with multiple sets of downward protruding pressing bosses 442, the second lifting drive assembly 45 is fixed on the lifting slide plate 43, the displacement sensor 46 is fixed to the power output end of the second lifting drive assembly 45, and the detection end of the displacement sensor 46 corresponds to the upper part of the second clearance hole 441.

[0026] In the previous process, the motor was installed on the circuit board and fed to one end of the rotary feeding mechanism 2. The rotary feeding mechanism 2 transported the motor to the other end, and the conveying feeding mechanism 6 placed the motor on the detection platform 3. The lower end of the circuit board was close to the upper end of the placement fixture 32, and the motor shaft corresponded to the first clearance hole 321. Then, the first lifting drive assembly 42 drove the lifting slide plate 43 to descend, so that the pressing boss 442 on the circuit board pressure block 44 fixed the circuit board on the placement fixture 32. Then, the second lifting drive assembly 45 drove the displacement sensor 46 to descend. After the probe of the displacement sensor 46 contacted the motor shaft, it recorded the position information. Subsequently, the lifting cylinder 33 drove the lifting rod 34 to push the bottom of the motor shaft upward, so that the motor shaft moved upward. The displacement sensor 46 recorded the position information at this time and calculated it with the position information before the movement, so as to obtain the amount of movement of the motor rotor. After testing, both testing platform 3 and testing mechanism 4 are reset. The tested motor is then transported by a handling robot to the unloading conveyor mechanism 5, which transports the motor to the next process. The advantage of this design is that it can detect the axial movement of the motor after it is assembled with the circuit board, and it can firmly fix the circuit board, thereby improving the accuracy of the motor shaft axial movement detection and making the axial movement detection data more meaningful.

[0027] The placement fixture 32 is provided with an upwardly protruding positioning post 322, which is located on one side of the first clearance hole 321. After the circuit board is placed on the placement fixture 32, the positioning post 322 is inserted into the positioning hole on the circuit board, thereby enabling precise positioning of the circuit board.

[0028] The rotary feeding mechanism 2 includes a first base 21, a rotary drive assembly 22, a rotary plate 23, and a feeding fixture 24. The first base 21 is fixed on the workbench 1, the rotary drive assembly 22 is fixed above the first base 21, the middle part of the rotary plate 23 is fixed to the power output end of the rotary drive assembly 22, and two sets of feeding fixtures 24 are provided and fixed at both ends of the rotary plate 23 respectively.

[0029] The motor, along with the circuit board, is placed on the loading fixture 24 at one end of the rotating plate 23 by the previous process. Then, the rotation drive assembly 22 drives the rotating plate 23 to rotate, thereby rotating the motor to the side close to the conveying and loading mechanism 6, and the conveying and loading mechanism 6 loads the motor onto the inspection platform 3.

[0030] The material conveying mechanism 5 includes a qualified product conveying component 51 and a defective product conveying component 52, both fixed on the workbench 1. One end of the qualified product conveying component 51 and one end of the defective product conveying component 52 correspond to the handling and loading mechanism 6. Based on the measurement results of the testing mechanism 4, the handling and loading mechanism 6 places qualified products and defective products onto the qualified product conveying component 51 and the defective product conveying component 52, respectively.

[0031] The material handling and loading mechanism 6 includes a second base 61, an X-axis drive assembly 62, a Y-axis drive assembly 63, a drive plate 64, a first handling robot 65, and a second handling robot 66. The second base 61 is fixed on the worktable 1, the X-axis drive assembly 62 is fixed on the second base 61, the Y-axis drive assembly 63 is fixed on the power output end of the X-axis drive assembly 62, the drive plate 64 is fixed on the power output end of the Y-axis drive assembly 63, and the first handling robot 65 and the second handling robot 66 are respectively fixed on the left and right sides of the drive plate 64.

[0032] The Y-axis drive assembly 63 brings the drive plate 64 close to the inspection platform 3. The first handling robot 65 grabs the motor on the rotating feeding mechanism 2, and the second handling robot 66 grabs the motor on the inspection platform 3. Driven by the X-axis drive assembly 62, they are respectively transported to the next workstation.

[0033] Further description of the present invention: The second handling robot 66 includes a Y-axis cylinder 661, a Z-axis cylinder 662, a clamping cylinder 663, and grippers 664. The Y-axis cylinder 661 is fixed on the drive plate 64, the Z-axis cylinder 662 is fixed on the power output end of the Y-axis cylinder 661, the clamping cylinder 663 is fixed on the power output end of the Z-axis cylinder 662, and two sets of grippers 664 are provided and respectively fixed on the two sets of power output ends of the clamping cylinder 663.

[0034] Y-axis drive assembly 63 moves drive plate 64 closer to inspection platform 3. Z-axis cylinder 662 drives gripper 664 to descend. Then, clamping cylinder 663 drives gripper 664 to clamp, thereby clamping the motor. Next, Z-axis cylinder 662 resets. X-axis drive assembly 62 drives second handling robot 66 to move to the right. According to the inspection result of inspection mechanism 4, Y-axis drive assembly 63 drives gripper 664 to move backward a certain distance, so that the motor is positioned on qualified product conveying assembly 51 or defective product conveying assembly 52. ​​After Z-axis cylinder 662 drives gripper 664 to descend, clamping cylinder 663 opens gripper 664, and the motor falls onto unloading conveying mechanism 5 and is conveyed to the next process.

[0035] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A device for detecting the axial movement of a motor shaft, characterized in that: The device includes a frame, a worktable, a rotary feeding mechanism, a detection platform, a detection mechanism, a discharge conveying mechanism, and a handling feeding mechanism. The worktable is horizontally fixed on the frame. The rotary feeding mechanism, the detection platform, and the discharge conveying mechanism are sequentially fixed above the worktable from left to right. The detection mechanism is fixed on the worktable and corresponds to one side of the detection platform. The handling feeding mechanism is fixed on the worktable and corresponds to the other side of the detection platform. The handling feeding mechanism is used to move the motor from the rotary feeding mechanism to the detection platform and from the detection platform to the discharge conveying mechanism. The testing platform includes a mounting base, a placement fixture, a lifting cylinder, and a lifting rod. The lower end of the mounting base is fixed to the worktable, and the placement fixture is fixed to the upper end of the mounting base. A first clearance hole is provided in the middle of the placement fixture. The lifting cylinder is fixed to the mounting base, and the lifting rod is fixed to the power output end of the lifting cylinder and corresponds to the area below the first clearance hole. The testing mechanism includes a mounting frame, a first lifting drive assembly, a lifting slide plate, a circuit board pressure block, a second lifting drive assembly, and a displacement sensor. The lower end of the mounting frame is fixed to the worktable. The first lifting drive assembly is fixed to the upper end of the mounting frame. The lifting slide plate is fixed to the power output end of the first lifting drive assembly and is slidably connected to the mounting frame. The circuit board pressure block is fixed on the lifting slide plate. The middle part of the circuit board pressure block is provided with a second clearance hole corresponding to the upper part of the first clearance hole. The outer periphery of the circuit board pressure block is provided with multiple sets of downward protruding pressing bosses. The second lifting drive assembly is fixed on the lifting slide plate. The displacement sensor is fixed to the power output end of the second lifting drive assembly. The detection end of the displacement sensor corresponds to the upper part of the second clearance hole.

2. The motor shaft axial movement detection device according to claim 1, characterized in that: The placement fixture is provided with an upwardly protruding positioning post, which is located on one side of the first clearance hole.

3. The motor shaft movement detection device according to claim 1, characterized in that: The rotary feeding mechanism includes a first base, a rotary drive assembly, a rotary plate, and a feeding fixture. The first base is fixed on the workbench, the rotary drive assembly is fixed above the first base, the middle part of the rotary plate is fixed to the power output end of the rotary drive assembly, and two sets of feeding fixtures are provided and fixed to both ends of the rotary plate respectively.

4. The motor shaft movement detection device according to claim 1, characterized in that: The material conveying mechanism includes a qualified product conveying component and a defective product conveying component, both fixed on the workbench. One end of the qualified product conveying component and one end of the defective product conveying component both correspond to the material handling and loading mechanism.

5. The motor shaft axial movement detection device according to claim 1, characterized in that: The material handling and loading mechanism includes a second base, an X-axis drive assembly, a Y-axis drive assembly, a drive plate, a first handling robot, and a second handling robot. The second base is fixed on the worktable, the X-axis drive assembly is fixed on the second base, the Y-axis drive assembly is fixed on the power output end of the X-axis drive assembly, the drive plate is fixed on the power output end of the Y-axis drive assembly, and the first handling robot and the second handling robot are respectively fixed on the left and right sides of the drive plate.

6. The motor shaft axial movement detection device according to claim 1, characterized in that: The second handling robot includes a Y-axis cylinder, a Z-axis cylinder, a clamping cylinder, and grippers. The Y-axis cylinder is fixed on the drive plate, the Z-axis cylinder is fixed on the power output end of the Y-axis cylinder, the clamping cylinder is fixed on the power output end of the Z-axis cylinder, and the grippers are provided in two sets and respectively fixed on the two sets of power output ends of the clamping cylinder.

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