Detection device for motor shaft

Abstract

The present invention relates to a detection device for a motor shaft, comprising a workbench, a fixed disk is arranged on the top of the workbench through two groups of slide rails, an annular rotating table is arranged on the workbench and directly below the fixed disk, a first driving component is arranged on the surface of the rotating table, a detection component is arranged on the top of the workbench and on one side of the rotating table, an adsorption component is rotatably connected to the inside of the fixed disk and close to the side of the detection component, and the present invention drives a fixed rod to move downward through one of the driving sources of the second driving component, the fixed rod drives the fixed disk to move downward, and the fixed disk drives the limit assembly to move downward, so that the limit assembly moves into the inside of the rotating table, so that the bottom of the motor shaft is not blocked by the limit assembly, which is convenient for comprehensive detection.

Description

Technical Field

[0001] The invention relates to the technical field of motor parts production equipment detection, and in particular to a detection device for a motor shaft. Background Art

[0002] The motor shaft is a cylindrical component extending from the motor and its housing. The shaft is the main support and connector of the armature part of the motor, and is also the output part of the power generated by the motor. The purpose of the shaft is to convert the energy of the motor into the final use. The precision pin and motor shaft are used to provide the speed and torque of the motor, and are one of the indispensable and important parts of the motor.

[0003] The publication number is CN113607223B, and its name is a detection device for a motor shaft. It discloses the use of ultrasonic metal flaw detection on the motor shaft, and a rotating clamping mechanism is used to drive the motor shaft to rotate, thereby cooperating with an ultrasonic flaw detection head with lateral linear motion to perform a comprehensive detection on the motor shaft. However, since one end of the motor shaft needs to be inserted into the rotating clamping mechanism, when the part of the motor shaft located in the rotating clamping mechanism is tested, there will be problems such as missed detection, reduced detection accuracy and inaccuracy. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a detection device for a motor shaft, and the specific technical solution is as follows:

[0005] The detection device for a motor shaft comprises a workbench, a fixed plate is arranged on the top of the workbench through two sets of slide rails, an annular rotating table is arranged on the workbench and directly below the fixed plate, a first driving component is arranged on the surface of the rotating table, a detection component is arranged on the top of the workbench and on one side of the rotating table, an adsorption component is rotatably connected to a side of the fixed plate and close to the detection component, a through hole for loading and unloading the power supply shaft is opened on a side of the fixed plate away from the adsorption component, a second driving component is arranged inside the workbench, a fixing rod is arranged on the second driving component, the top of the fixing rod passes through the top of the workbench, the rotating table and the fixed plate in sequence and extends to the outside of the fixed plate, a third driving component is arranged between one end of the fixing rod extending to the outside of the fixed plate and the adsorption component, a limiting component for positioning the bottom of the motor shaft is arranged at the bottom of the fixed plate and on both sides of the fixing rod, the third driving component drives the fixing rod to drive the fixing plate to move up and down, thereby controlling the limiting fixation of the motor shaft, and drives the fixing rod to drive the adsorption component to rotate, thereby controlling the rotation of the motor shaft.

[0006] As an improvement of the above technical solution, the first driving assembly includes a first motor and a first transmission belt. The first motor is arranged above the workbench, and the first transmission belt is arranged between the first motor and the rotating table.

[0007] As an improvement of the above technical solution, the detection component includes a moving module and an ultrasonic flaw detection head. The moving module is arranged on the top of the workbench and on one side of the rotating table, and the ultrasonic flaw detection head is arranged on the moving module.

[0008] As an improvement of the above technical solution, the adsorption component includes a rotating shaft, an adsorption plate and an air pipe. A rotating shaft is rotatably connected to one end of the fixed plate close to the detection component, an air pipe is rotatably connected to the inside of the rotating shaft, and a suction cup connected to the air pipe is provided at the bottom of the rotating shaft.

[0009] As an improvement of the above technical solution, the third driving assembly includes a driving wheel and a driven wheel, the fixed rod extends to the outside of the fixed disk and one end is fixedly sleeved with the driving wheel, the top of the rotating shaft is fixedly sleeved with the driven wheel, and the driving wheel is meshingly connected with the driven wheel.

[0010] As an improvement of the above technical solution, the second driving assembly includes an electric telescopic rod, a second motor, a second transmission belt and a connecting plate. A connecting plate is slidably connected to the inside of the workbench. The center of the top of the connecting plate is rotatably connected to the fixed rod. An electric telescopic rod is arranged between one side of the top of the connecting plate and the top of the inner wall of the workbench. A second motor is arranged on the other side of the connecting plate. A second transmission belt is arranged between the second motor and the fixed rod.

[0011] As an improvement of the above technical solution, the limit assembly includes a connecting rod, a mounting plate and a limit plate. The bottom of the fixed plate is slidably connected with two groups of connecting rods in an L-shaped structure through an annular groove. The bottom of the connecting rod passes through the rotating table and extends into the interior of the rotating table. A mounting plate is provided at one end of the connecting rod extending into the interior of the rotating table. Multiple groups of annular limit plates are provided on the top of the mounting plate. The top of the limit plate passes through the rotating table.

[0012] Beneficial effects of the present invention:

[0013] The fixing rod is driven downward by one of the driving sources of the second driving assembly, and the fixing rod drives the fixing plate to move downward, and the fixing plate drives the limiting assembly to move downward, so that the limiting assembly moves into the interior of the rotating table, so that there is no limiting assembly blocking the bottom of the motor shaft, which is convenient for comprehensive detection. Since the fixing plate will also drive the adsorption assembly to move downward and contact the top of the motor shaft during the descending process, when the limiting assembly moves into the interior of the rotating table, the adsorption assembly on the top of the fixing plate can limit and fix the motor shaft again and rotate it, so as to cooperate with the detection assembly to perform a comprehensive detection of the motor shaft, and there are no obstacles on the surface, thereby ensuring the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the overall structure of the present invention;

[0015] Figure 2It is an enlarged view of structure A in the present invention;

[0016] Figure 3 This is a connection distribution diagram of the limit plate and the mounting plate of the present invention;

[0017] Figure 4 It is a schematic diagram of the connection structure between the rotating table and the first driving assembly in the present invention;

[0018] Figure 5 It is a top view of the fixed disk in the present invention.

[0019] Figure numerals: 1. workbench; 2. detection component; 21. mobile module; 22. ultrasonic flaw detection head; 3. fixed plate; 4. limit assembly; 41. connecting rod; 42. mounting plate; 43. limit plate; 5. second drive assembly; 51. electric telescopic rod; 52. second motor; 53. connecting plate; 6. rotating table; 7. fixed rod; 8. third drive assembly; 81. driven wheel; 82. driving wheel; 9. adsorption assembly; 91. air pipe; 92. rotating shaft; 93. suction cup; 10. first transmission belt; 11. first motor; 12. through hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The detection device for the motor shaft comprises a workbench 1, a fixed disk 3 is arranged on the top of the workbench 1 through two sets of slide rails, an annular rotating table 6 is arranged on the workbench 1 and directly below the fixed disk 3, a first driving component is arranged on the surface of the rotating table 6, a detection component 2 is arranged on the top of the workbench 1 and on one side of the rotating table 6, an adsorption component 9 is rotatably connected to the inside of the fixed disk 3 and close to the side of the detection component 2, a through hole 12 for loading and unloading the motor shaft is opened on the side of the fixed disk 3 away from the adsorption component 9, a second driving component 5 is arranged inside the workbench 1, and the A fixing rod 7 is arranged on the second driving component 5, and the top of the fixing rod 7 passes through the top of the workbench 1, the rotating table 6 and the fixed disk 3 in sequence and extends to the outside of the fixed disk 3. A third driving component 8 is arranged between one end of the fixing rod 7 extending to the outside of the fixed disk 3 and the adsorption component 9, and a limiting component 4 for positioning the bottom of the motor shaft is arranged at the bottom of the fixed disk 3 and on both sides of the fixing rod 7. The third driving component 8 drives the fixing rod 7 to drive the fixed disk 3 to move up and down, thereby controlling the limiting fixation of the motor shaft, and drives the fixing rod 7 to drive the adsorption component 9 to rotate, thereby controlling the rotation of the motor shaft.

[0022] During detection, the motor shaft is inserted from the upper part of the through hole 12, and the position of the motor shaft can be preliminarily positioned and limited through the through hole 12, so that the motor shaft can be located in the limiting component 4, and then the first driving component drives the rotating table 6 to rotate to one side of the detection component 2. When the motor shaft rotates to one side of the detection component 2 and is located directly below the adsorption component 9, one of the driving sources of the second driving component 5 drives the fixed rod 7 to move downward, and the fixed rod 7 drives the fixed plate 3 to move downward, and the fixed plate 3 drives the limiting component 4 to move downward, so that the limiting component 4 moves into the interior of the rotating table 6, so that there is no limiting component 4 blocking the bottom of the motor shaft, which is convenient for the whole Surface detection, since the fixed plate 3 will also drive the adsorption component 9 to move downward and contact the top of the motor shaft during the descent process, when the limit component 4 moves into the rotating table 6, the adsorption component 9 on the top of the fixed plate 3 can re-limit and fix the motor shaft, and then start another driving source in the second driving component 5, which can drive the fixed rod 7 to rotate, the fixed rod 7 drives the third driving component 8 to rotate, the third driving component 8 drives the adsorption component 9 to rotate, and the adsorption component 9 can drive the motor shaft to rotate, so as to cooperate with the detection component 2 to perform a comprehensive detection on the motor shaft, and there are no obstacles on the surface to ensure the accuracy of the detection;

[0023] In order to improve the loading and unloading time of the detection device, while this group of motor shafts is being detected, the motor shafts located on another group of limit assemblies 4 can be loaded and unloaded from the through holes 12, saving the time wasted in loading and unloading during detection and ensuring the continuity of detection.

[0024] The center line of the adsorption assembly 9 and the center line of the through hole 12 are symmetrical with respect to the center line of the fixing plate 3 .

[0025] In order to facilitate the rotating table 6 to move the motor shaft from the through hole 12 to the adsorption component 9, the first driving component includes a first motor 11 and a first transmission belt 10. The first motor 11 is arranged above the workbench 1, and the first transmission belt 10 is arranged between the first motor 11 and the rotating table 6. The first motor 11 drives the rotating table 6 to rotate through the first transmission belt 10, and the motor shaft can be moved from the through hole 12, i.e., the loading station, to the adsorption component 9, i.e., the detection station.

[0026] In one embodiment, reference Figure 1 The detection component 2 includes a moving module 21 and an ultrasonic flaw detection head 22. The moving module 21 is arranged on the top of the workbench 1 and on one side of the rotating table 6. The ultrasonic flaw detection head 22 is arranged on the moving module 21. The moving module 21 drives the ultrasonic flaw detection head 22 to move up and down, and cooperates with the adsorption component 9 to drive the motor shaft to rotate, so that the motor shaft can be fully inspected.

[0027] In order to drive the motor shaft to rotate, refer to Figure 1 , Figure 2as well as Figure 5 The adsorption component 9 includes a rotating shaft 92, a suction cup 93 and an air pipe 91. The rotating shaft 92 is rotatably plugged into one end of the fixed plate 3 close to the detection component 2. The air pipe 91 is rotatably plugged into the rotating shaft 92. A suction cup 93 connected to the air pipe 91 is provided at the bottom of the rotating shaft 92. One end of the air pipe 91 is connected to the air pump. When one group of limit components 4 drives the motor shaft to rotate to the bottom of the adsorption component 9, the fixed plate 3 drives the adsorption component 9 to move downward. When the suction cup 93 contacts the top of the motor shaft, the air pump is started. The air pump extracts the gas inside the suction cup 93 through the air pipe 91, so that the inside of the suction cup 93 is negative pressure, and the motor shaft motor is adsorbed and fixed. At the same time, the fixed rod 7 drives the third drive assembly 8 to rotate, and the third drive assembly 8 drives the motor shaft to rotate, which is convenient for comprehensive inspection of the motor shaft. After the inspection is completed, the air pump deflates to restore the air pressure inside the suction cup 93, and there is no adsorption force between the suction cup 93 and the motor shaft. At this time, the second drive assembly 5 drives the fixed plate 3 to move upward, and the fixed plate 3 drives the adsorption assembly 9 to disengage from the motor shaft. At the same time, the limit assembly 4 moves out of the rotating table 6, and continues to limit the bottom of the inspected or uninspected motor shaft to ensure that the inspected motor shaft can move from the bottom of the adsorption assembly 9 to the through hole 12, and the uninspected motor shaft can move from the through hole 12 to the position of the adsorption assembly 9, which is convenient for loading and unloading.

[0028] In one embodiment, Figure 1 , Figure 2 and Figure 5 The third driving assembly 8 includes a driving wheel 82 and a driven wheel 81. The fixed rod 7 extends to the outside of the fixed plate 3 and one end is fixedly sleeved with the driving wheel 82. The top of the rotating shaft 92 is fixedly sleeved with the driven wheel 81. The driving wheel 82 is meshed and connected with the driven wheel 81. The fixed rod 7 drives the driving wheel 82 to rotate. The driving wheel 82 drives the driven wheel 81 to rotate through the meshing of gears. The driven wheel 81 drives the rotating shaft 92 to rotate.

[0029] In order to realize that the fixing rod 7 can not only move in the vertical direction, but also rotate, refer to Figure 1The second driving assembly 5 includes an electric telescopic rod 51, a second motor 52, a second transmission belt and a connecting plate 53. The connecting plate 53 is slidably connected inside the workbench 1. The center of the top of the connecting plate 53 is rotatably connected to the fixed rod 7. The electric telescopic rod 51 is arranged between one side of the top of the connecting plate 53 and the top of the inner wall of the workbench 1. The second motor 52 is arranged on the other side of the connecting plate 53. A second transmission belt is arranged between the second motor 52 and the fixed rod 7. The connecting plate 53 is slidably connected to the inside of the workbench 1, so that the connecting plate 53 is only It can move in the vertical direction but cannot rotate. Therefore, the electric telescopic rod 51 drives the connecting plate 53 to move, which can drive the fixed rod 7 to move in the vertical direction. Because the fixed rod 7 is rotatably connected to the connecting plate 53, the second motor 52 can drive the fixed rod 7 to rotate through the second transmission belt, so that the fixed rod 7 drives the driving wheel 82 to rotate. Because the fixed plate 3 can only move in the vertical direction under the limiting action of the slide rail, and the inner ring of the rotating table 6 can avoid the fixed rod 7 without contact, so that the rotating table 6 or the fixed rod 7 do not interfere with each other when rotating.

[0030] In order to fix the plate 3 in the process of moving downward, the limit assembly 4 can be automatically unlocked, refer to Figure 1 , Figure 3 and Figure 4 The limiting assembly 4 includes a connecting rod 41, a mounting plate 42 and a limiting plate 43. The bottom of the fixed disk 3 is slidably connected with two groups of connecting rods 41 in an L-shaped structure through an annular groove. The bottom of the connecting rod 41 passes through the rotating table 6 and extends to the inside of the rotating table 6. The end of the connecting rod 41 extending to the inside of the rotating table 6 is provided with a mounting plate 42. The top of the mounting plate 42 is provided with multiple groups of annular limiting plates 43. The top of the limiting plate 43 passes through the rotating table 6. Since the top of the connecting rod 41 is slidably connected with the bottom of the fixed disk 3, when the rotating table 6 rotates, the rotating table 6 The movable table 6 drives the connecting rod 41 to rotate. When the fixed plate 3 moves downward, the fixed plate 3 drives the connecting rod 41 to move downward, so that the connecting rod 41 drives the mounting plate 42 to move downward, and the mounting plate 42 drives the limiting plate 43 to move the part passing through the workbench 1 into the interior of the workbench 1, so that there are no blocking parts on the surface of the motor shaft and near the bottom end, and all-round detection can be carried out to improve the accuracy of the detection. Among them, multiple groups of limiting plates 43 are distributed in a circular array on the mounting plate 42, and the center line of the adsorption component 9 and the center of the circle surrounded by the multiple groups of limiting plates 43 are on the same straight line.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detection device for a motor shaft, characterized in that: The invention comprises a workbench (1), wherein a fixed disk (3) is arranged on the top of the workbench (1) via two sets of slide rails, an annular rotating table (6) is arranged on the workbench (1) and directly below the fixed disk (3), a first driving component is arranged on the surface of the rotating table (6), a detection component (2) is arranged on the top of the workbench (1) and on one side of the rotating table (6), an adsorption component (9) is rotatably connected to the inside of the fixed disk (3) and on a side close to the detection component (2), a through hole (12) for loading and unloading the electric machine shaft is provided on the side of the fixed disk (3) away from the adsorption component (9), a second driving component (5) is arranged inside the workbench (1), and the second driving component (5) A fixing rod (7) is arranged on the component (5), the top of the fixing rod (7) passes through the top of the workbench (1), the rotating table (6) and the fixing plate (3) in sequence and extends to the outside of the fixing plate (3), a third driving component (8) is arranged between one end of the fixing rod (7) extending to the outside of the fixing plate (3) and the adsorption component (9), and a limiting component (4) for positioning the bottom of the motor shaft is arranged at the bottom of the fixing plate (3) and on both sides of the fixing rod (7), the third driving component (8) drives the fixing rod (7) to drive the fixing plate (3) to move up and down, thereby controlling the limiting fixation of the motor shaft, and drives the fixing rod (7) to drive the adsorption component (9) to rotate, thereby controlling the rotation of the motor shaft; The adsorption component (9) comprises a rotating shaft (92), a suction cup (93) and an air pipe (91); the rotating shaft (92) is rotatably plugged into one end of the fixed plate (3) close to the detection component (2); the air pipe (91) is rotatably plugged into the rotating shaft (92); and the suction cup (93) connected to the air pipe (91) is provided at the bottom of the rotating shaft (92); The third driving assembly (8) comprises a driving wheel (82) and a driven wheel (81); the fixed rod (7) extends to the outside of the fixed plate (3), one end of which is fixedly sleeved with the driving wheel (82); the top of the rotating shaft (92) is fixedly sleeved with the driven wheel (81); the driving wheel (82) is meshingly connected with the driven wheel (81); The second driving assembly (5) comprises an electric telescopic rod (51), a second motor (52), a second transmission belt and a connecting plate (53); the connecting plate (53) is slidably connected inside the workbench (1); the center of the top of the connecting plate (53) is rotatably connected to the fixed rod (7); the electric telescopic rod (51) is arranged between one side of the top of the connecting plate (53) and the top of the inner wall of the workbench (1); the second motor (52) is arranged on the other side of the connecting plate (53); and a second transmission belt is arranged between the second motor (52) and the fixed rod (7); The limiting assembly (4) comprises a connecting rod (41), a mounting plate (42) and a limiting plate (43); the bottom of the fixed plate (3) is slidably connected to two groups of connecting rods (41) in an L-shaped structure via an annular groove; the bottom of the connecting rod (41) passes through the rotating table (6) and extends into the interior of the rotating table (6); one end of the connecting rod (41) extending into the interior of the rotating table (6) is provided with a mounting plate (42); a plurality of groups of annular limiting plates (43) are provided on the top of the mounting plate (42); and the top of the limiting plate (43) passes through the rotating table (6).

2. The detection device for a motor shaft according to claim 1, characterized in that: The first driving assembly comprises a first motor (11) and a first transmission belt (10); the first motor (11) is arranged above the workbench (1); and the first transmission belt (10) is arranged between the first motor (11) and the rotating table (6).

3. The detection device for a motor shaft according to claim 1, characterized in that: The detection component (2) comprises a movable module (21) and an ultrasonic flaw detection head (22); the movable module (21) is arranged on the top of the workbench (1) and on one side of the rotating table (6); and the ultrasonic flaw detection head (22) is arranged on the movable module (21).

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