A bench for multi-functional motor tests

Abstract

The present invention discloses a multi-functional motor test bench, which relates to the technical field of motor detection. It includes a first sliding table, on which a first slider is installed. At the front and rear ends of the upper side of the first slider, a group of second sliding tables are installed. Each group of second sliding tables is located on the left and right sides of the center line of the first slider with the center line of the first slider as the axis. Second sliders are installed on both groups of second sliding tables. A lifting rod is installed on the second slider, and an arc-shaped block is installed at the upper end of the lifting rod. An opening is provided on the arc-shaped block. The openings of the arc-shaped blocks on one group of lifting rods are located on the corresponding surfaces of the arc-shaped blocks of this group. A number of telescopic rods are installed on the opening sides of both groups of arc-shaped blocks, and pressure sensors are installed on the output ends of a number of the telescopic rods. A control box is installed on one side of the first sliding table. This device solves the problem of different sizes during current motor detection.

Description

Technical Field

[0001] The present invention relates to the technical field of motor detection, and specifically relates to a multi-functional motor test bench. Background Art

[0002] Motors play a crucial role in almost all parts of the world's industrial economy. Whether it is the food we eat or the buildings we live in, motors are behind every part of our daily life. During the production process of motors, a series of tests need to be carried out. If the requirements are met, they are qualified products; otherwise, they are defective products. Currently, the detection of motors is often carried out through a detection platform. Since motors are widely used and there are many types of them, the motor models used in different usage scenarios are different, and the shapes and sizes of different models of motors are also different. In the existing motor detection process, when fixing the motor, it is impossible to adjust the fixing device according to the size of the motor, resulting in poor applicability. Therefore, a multi-functional motor test bench is proposed to adapt to motors of different shapes and sizes. Summary of the Invention

[0003] The purpose of the present invention is to provide a multi-functional motor test bench to solve the problems raised in the above background art.

[0004] To solve the above technical problems, the present invention provides the following technical solution: A multi-functional motor test bench includes a first sliding table, on which a first slider is installed. At the front and rear ends of the upper side of the first slider, a group of second sliding tables are installed. Each group of second sliding tables is located on the left and right sides of the center line of the first slider with the center line of the first slider as the axis. Second sliders are installed on both groups of second sliding tables, and a lifting rod is installed on the second slider. An arc-shaped block is installed at the upper end of the lifting rod, and an opening is provided on the arc-shaped block. The openings of the arc-shaped blocks on one group of lifting rods are located on the corresponding surfaces of the arc-shaped blocks of this group.

[0005] The present invention further explains that a number of telescopic rods are installed on the opening sides of both groups of arc-shaped blocks.

[0006] The present invention further explains that pressure sensors are installed on the output ends of a number of telescopic rods.

[0007] The present invention further explains that a control box is installed on one side of the first sliding table, a display is installed on the control box, and a connecting wire is installed on one side of the control box.

[0008] The present invention further illustrates that a base is installed at the rear side of the first sliding table, a load is installed at the rear end of the upper end of the base, a dynamic torque sensor is installed at the front end above the base, the output end of the dynamic torque sensor penetrates through the front and rear sides of the dynamic torque sensor, the output end of the dynamic torque sensor and the output end of the load are on the same center line, a first coupling is fixedly connected to the rear ends of the output end of the dynamic torque sensor and the output end of the load, the center line of the output end of the load and the center line of the first sliding table are on the same vertical plane, and a second coupling is installed at the front end of the output end of the load.

[0009] The present invention further illustrates that an infrared rangefinder is installed in a circle at the front end of the output end of the load.

[0010] The present invention further illustrates that the motor test bench includes the following steps:

[0011] First step, align the output end of the motor with the direction of the dynamic torque sensor at the rear side, and place the motor between each group of arc-shaped blocks. At this time, the two second sliding tables drive their corresponding second sliders to gather towards the middle;

[0012] Second step, until some pressure sensors detect that an object is in contact. At this time, the control box controls to open the telescopic rod, so that the telescopic rod extends until all pressure sensors detect that an object is in contact;

[0013] Third step, this indicates that the motor has been clamped in the arc-shaped blocks by the telescopic rod.

[0014] The present invention further illustrates that the motor test bench further includes the following steps:

[0015] First step, after clamping and fixing the motor, the lifting rod drives the motor to move up and down. At this time, the infrared rangefinder detects the distance of the object in front;

[0016] Second step, if the infrared rangefinder detects that the distances between the output end of the motor in front and the corresponding positions of the infrared rangefinder are all the same, it indicates that the output end of the motor is completely corresponding to the output end of the front end of the dynamic torque sensor at this time. At this time, the first sliding table drives the first slider, so that the first slider drives the motor to move backward, so that the output end of the motor enters the second coupling and engages with the second coupling;

[0017] Third step, if the infrared rangefinder detects that there is a slight difference in the distances between the object in front and the corresponding positions of the infrared rangefinder, the control box judges the tilt angle of the motor according to the distance data detected by the infrared rangefinder from the output end of the motor, and controls the telescopic rod corresponding to the relatively lower position of the motor to push the motor, and at the same time retracts the telescopic rod at the diagonal position here, so that the telescopic rod slightly adjusts the tilt angle of the motor until the infrared rangefinder detects that the distances between the output end of the motor in front and the corresponding positions of the infrared rangefinder are all the same.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, arc-shaped blocks and telescopic rods are adopted. The output end of the motor is directed towards the dynamic torque sensor at the rear side, and the motor is placed between each group of arc-shaped blocks. At this time, the two second sliding tables drive their corresponding second sliders to gather towards the middle until some pressure sensors detect that an object is in contact. The control box controls the telescopic rod to open and extend until all pressure sensors detect that an object is in contact. At this time, it indicates that the motor has been clamped by the telescopic rod within the arc-shaped blocks, achieving the effect of automatic clamping and automatically adapting to motors of different sizes;

[0019] The lifting rod and the infrared rangefinder are adopted. The lifting rod drives the motor to move up and down. At this time, the infrared rangefinder detects the distance of the object in front. If the distances between the output end of the motor in front detected by the infrared rangefinder and the corresponding positions of the infrared rangefinder are all the same, at this time, the first sliding table drives the first slider, and the first slider drives the motor to move backward, so that the output end of the motor enters the second coupling and engages with the second coupling, achieving the effect of automatic alignment and improving the accuracy when motors of different models are inserted;

[0020] The pressure sensor is adopted. During the detection process, the control box records the data values of the pressure sensor in real time and also records the resistance values of the load during the corresponding time period, which is convenient for the staff to observe the influence on the motor under different resistance values. When the vibration of the motor reaches the vibration upper limit value, the control box controls the corresponding telescopic rod with a large change in the value sensed by the pressure sensor to continue to extend, so as to achieve a more firm support between the telescopic rod and the motor, achieving the effect of automatically discharging defective products and preventing damage to the detection instrument caused by long-time detection of motor failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0022] Figure 1 is the overall front structure schematic diagram of the present invention;

[0023] Figure 2 is the enlarged schematic diagram of Area A of the present invention;

[0024] Figure 3 is the enlarged schematic diagram of Area B of the present invention;

[0025] Figure 4 is the enlarged schematic diagram of Area C of the present invention;

[0026] In the figure: 1. Base; 2. Load; 3. Support base; 4. Dynamic torque sensor; 5. First coupling; 6. Second coupling; 7. Infrared rangefinder; 8. First sliding table; 9. First slider; 10. Second sliding table; 11. Second slider; 12. Lifting rod; 13. Arc-shaped block; 14. Telescopic rod; 15. Pressure sensor; 16. Control box; 17. Connecting wire; 18. Display. Detailed implementation mode

[0027] The technical solution of the present invention will be further described in detail and non-limitingly below in conjunction with the preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figure 1 , the present invention provides a technical solution: a multi-functional test bench for motors, including a base 1. A load 2 is fixedly installed at the rear end above the base 1. The load 2 is used to provide resistance to the motor to be detected. A support base 3 is fixedly installed at the front end above the base 1. A dynamic torque sensor 4 is installed above the support base 3. The output end of the dynamic torque sensor 4 penetrates through the front and rear ends of the dynamic torque sensor 4. The output end of the dynamic torque sensor 4 and the output end of the load 2 are on the same center line. The output end at the rear side of the dynamic torque sensor 4 and the output end of the load 2 are fixedly connected with a first coupling 5. The first coupling 5 is used to fixedly connect the output end at the rear side of the dynamic torque sensor 4 and the output end of the load 2.

[0029] Please refer to Figure 2 , the front end of the output end at the front side of the dynamic torque sensor 4 is provided with an inclined edge. A plurality of infrared rangefinders 7 are installed on the inclined edge, which are used to detect the horizontal and centering degree of the output end of the motor to be detected. A second coupling 6 is installed on the output end at the front side of the dynamic torque sensor 4, which is used to connect the output end of the motor to be detected and the output end at the front side of the dynamic torque sensor 4, so as to facilitate the dynamic torque sensor 4 to detect the torque of the motor to be detected.

[0030] Please refer to Figure 1 , Figure 4, a first sliding table 8 is fixedly installed on the front side of the base 1. A first sliding block 9 is slidably connected to the first sliding table 8. The first sliding table 8 is used to drive the first sliding block 9 to move back and forth. On the front and rear sides above the first sliding block 9, a group of second sliding tables 10 are respectively installed. A group of second sliding tables 10 are based on the center line of the first sliding block 9 and are respectively located on the left and right sides of the center line of the first sliding block 9. The center line of the first sliding block 9 and the center line of the output end of the dynamic torque sensor 4 are in the same vertical plane. A second sliding block 11 is installed inside the second sliding table 10. The second sliding table 10 is used to drive its corresponding second sliding block 11 to move left and right, so that a group of corresponding second sliding tables 10 are combined or separated.

[0031] Please refer to Figure 1 , Figures 3-4 , a lifting rod 12 is fixedly installed on the second sliding block 11. An arc-shaped block 13 is installed at the upper end of the lifting rod 12. The openings of the arc-shaped blocks 13 on a group of left and right corresponding lifting rods 12 are also on the same corresponding plane, and are used to clamp the motor to be detected when a group of lifting rods 12 are brought close by their corresponding second sliding blocks 11. A number of telescopic rods 14 are installed on the opening side of the arc-shaped block 13, and are used to resist the outer wall of the motor in a divided area when a group of arc-shaped blocks 13 clamp the motor to be detected, so that the motor is clamped more firmly. At the same time, when the center line of the output end of the motor and the center line of the output end of the dynamic torque sensor 4 are not completely coincident, the angle of the motor is slightly adjusted so that the output end of the motor corresponds to the output end of the dynamic torque sensor 4, which is convenient for accurately inserting the output end of the motor into the second coupling 6 to be connected to the output end of the dynamic torque sensor 4.

[0032] Please refer to Figure 3 , pressure sensors 15 are fixedly installed at the front ends of the telescopic rods 14, and are used to detect the clamping degree of the telescopic rods 14 on the motor, and at the same time detect the vibration amplitude when the motor rotates under load.

[0033] Please refer to Figure 1 , a control box 16 is fixedly installed on one side of the first sliding table 8, and is used to receive signals, process information, and send instructions. A display 18 is fixedly installed at the upper end of the control box 16. The display 18 is signal-connected to the control box 16, and is used to input instructions and display detection data. A connecting wire 17 is installed on one side of the control box 16, and is used to connect the motor to be detected during subsequent detection, so that the motor is signal-connected to the control box 16, which is convenient for inputting instructions and reading data.

[0034] The load 2, the dynamic torque sensor 4, the infrared rangefinder 7, the first sliding table 8, the second sliding table 10, the lifting rod 12, the telescopic rod 14, and the pressure sensor 15 are all signal-connected to the control box 16.

[0035] Working principle: The initial state of the first slider 9 is located at the front end of the first slide 8. At the same time, the two groups of second sliders 11 are in a separated state, which is convenient for placing the motor between the arc-shaped blocks 13. At this time, the output end of the motor is directed towards the dynamic torque sensor 4 at the rear side, and the motor is placed between each group of arc-shaped blocks 13. Then, the two groups of second slides 10 drive their corresponding second sliders 11 to move towards the middle until some pressure sensors 15 detect that there is an object in contact. At this time, the control box 16 controls to open the telescopic rod 14, so that the telescopic rod 14 extends until all the pressure sensors 15 detect that there is an object in contact. At this time, the control box 16 stops the movement of the first slider 9 and the telescopic movement of the telescopic rod 14. At this time, it indicates that the motor has been clamped by the telescopic rod 14 in the arc-shaped block 13, achieving the effect of automatic clamping and automatically adapting to motors of different sizes.

[0036] After clamping and fixing the motor, the lifting rod 12 drives the motor to move up and down. At this time, the infrared rangefinder 7 detects the distance of the object in front. If the infrared rangefinder 7 detects that the distances from the output end of the motor in front to the corresponding position of the infrared rangefinder 7 are the same, it indicates that the output end of the motor is completely corresponding to the output end at the front end of the dynamic torque sensor 4 at this time. At this time, the first slide 8 drives the first slider 9, so that the first slider 9 drives the motor to move backward, and the output end of the motor enters the second coupling 6 and engages with the second coupling 6, achieving the effect of automatic alignment and improving the accuracy when motors of different models are inserted.

[0037] If the infrared rangefinder 7 detects that there is a slight difference in the distance between the object in front and the corresponding position of the infrared rangefinder 7, it indicates that the output end of the motor at this time is not on the same center line as the output end of the dynamic torque sensor 4. At this time, the control box 16 judges the tilt angle of the motor according to the distance data detected by the infrared rangefinder 7 from the output end of the motor, and controls the telescopic rod 14 corresponding to the relatively lower position of the motor to push the motor, and at the same time retracts the telescopic rod 14 at the diagonal position here, so that the telescopic rod 14 slightly adjusts the tilt angle of the motor until the infrared rangefinder 7 detects that the distances from the output end of the motor in front to the corresponding position of the infrared rangefinder 7 are the same, achieving automatic position calibration and preventing damage to the output end of the motor caused by scratching or jamming with the second coupling 6 when the output end of the motor is tilted and inserted into the second coupling 6.

[0038] After the output end of the motor is connected to the second coupling 6, the pressure value data of the pressure sensor 15 at this time are all recorded in the control box 16. At the same time, the resistance value of the load 2 during detection and the vibration upper limit value of the motor are set on the control box 16, and the connection line 17 is connected to the motor. At this time, the detection is controlled to start through the display 18. During the detection process, the control box 16 records the data value of the pressure sensor 15 in real time and records the resistance value of the load 2 in the corresponding time period together, which is convenient for the staff to observe the influence on the motor under different resistance values. When the vibration of the motor reaches the vibration upper limit value, the control box 16 controls the corresponding telescopic rod 14 with a large change in the value sensed by the pressure sensor 15 to continue to extend, so as to achieve a tighter support between the telescopic rod 14 and the motor. If the change range of the data value detected by the pressure sensor 15 is still large at this time, the control box 16 controls the load 2 and the motor to be turned off at the same time, and then the data detected by the pressure sensor 15 is displayed on the display 18 for the staff to conduct fault troubleshooting. If the vibration value decreases after being tightened by the telescopic rod 14, the subsequent motor detection is continued to achieve the effect of automatically discharging defective products and preventing damage to the detection instrument caused by long-term detection of motor faults.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, 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 invention.

[0040] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A test bench for a multi-functional motor, comprising a first sliding table (8), characterized in that: A moving component is installed on the first sliding table (8), and the moving component includes: a first slider (9), two groups of second sliding tables (10), two groups of second sliders (11), two groups of lifting rods (12), and two groups of arc-shaped blocks (13); The first slider (9) is installed on the first sliding table (8). The two groups of second sliding tables (10) are respectively installed at the front and rear ends on the upper side of the first slider (9). Each group of second sliding tables (10) is located on the left and right sides of the center line of the first slider (9) with the center line of the first slider (9) as the axis. The two groups of second sliders (11) are respectively installed on the two groups of second sliding tables (10). The two groups of lifting rods (12) are respectively installed on the two groups of second sliders (11). The two groups of arc-shaped blocks (13) are respectively installed on the two groups of lifting rods (12). The opening of each group of arc-shaped blocks (13) is located on the corresponding surface of a group of arc-shaped blocks (13); A number of telescopic rods (14) are installed on the opening sides of the two groups of arc-shaped blocks (13). When a group of arc-shaped blocks (13) clamps the motor to be detected, the telescopic rods (14) are used to press against the outer wall of the motor in different regions. When the center line of the output end of the motor and the center line of the output end of the dynamic torque sensor (4) are not completely coincident, the angle of the motor is slightly adjusted to make the output end of the motor correspond to the output end of the dynamic torque sensor (4), so as to accurately insert the output end of the motor into the second coupling (6) and connect it to the output end of the dynamic torque sensor (4); A base (1) is installed at the rear side of the first sliding table (8). A load (2) is installed at the rear side of the upper end of the base (1). A dynamic torque sensor (4) is installed at the front end above the base (1). The output end of the dynamic torque sensor (4) penetrates through the front and rear sides of the dynamic torque sensor (4). The output end of the dynamic torque sensor (4) and the output end of the load (2) are on the same center line. A first coupling (5) is fixedly connected to the rear ends of the output end of the dynamic torque sensor (4) and the output end of the load (2). The center line of the output end of the load (2) and the center line of the first sliding table (8) are in the same vertical plane. A second coupling (6) is installed at the front end of the output end of the load (2).

2. The bench for multi-functional motor test according to claim 1, characterized in that: Pressure sensors (15) are installed on the output ends of a number of the telescopic rods (14).

3. The bench for multi-functional motor test according to claim 2, characterized in that: A control box (16) is installed on one side of the first sliding table (8). A display (18) is installed on the control box (16). A connecting wire (17) is installed on one side of the control box (16).

4. The bench for multi-functional motor test according to claim 3, characterized in that: An infrared rangefinder (7) is installed in a circle at the front end of the output end of the load (2).

5. The bench for multi-functional motor test according to claim 4, characterized in that: The steps of the motor test bench include the following: First step, align the output end of the motor with the direction of the dynamic torque sensor (4) at the rear side, and place the motor between each group of arc-shaped blocks (13). At this time, the two groups of second sliding tables (10) drive their corresponding second sliders (11) to gather towards the middle; In the second step, until some pressure sensors (15) detect the contact of an object. At this time, the control box (16) controls to open the telescopic rod (14) to make the telescopic rod (14) extend until all the pressure sensors (15) detect the contact of an object; In the third step, this indicates that the motor has been clamped within the arc-shaped block (13) by the telescopic rod (14).

6. The operation method of a multi-functional motor test bench according to claim 5, characterized in that: In the first step, after clamping and fixing the motor, the lifting rod (12) drives the motor to move up and down. At this time, the infrared rangefinder (7) detects the distance of the object in front. In the second step, if the infrared rangefinder (7) detects that the distances between the output end of the motor in front and the corresponding positions of the infrared rangefinder (7) are the same, it indicates that the output end of the motor is exactly corresponding to the output end of the front end of the dynamic torque sensor (4). At this time, the first sliding table (8) drives the first slider (9) to make the first slider (9) drive the motor to move backward, so that the output end of the motor enters the second coupling (6) and engages with the second coupling (6); In the third step, if the infrared rangefinder (7) detects a slight difference in the distance between the object in front and the corresponding position of the infrared rangefinder (7), the control box (16) judges the inclination angle of the motor according to the distance data detected by the infrared rangefinder (7) from the output end of the motor, and controls the telescopic rod (14) corresponding to the relatively lower position of the motor to push the motor, and at the same time retracts the telescopic rod (14) at the diagonal position here, so as to slightly adjust the inclination angle of the motor by the telescopic rod (14) until the infrared rangefinder (7) detects that the distances between the output end of the motor in front and the corresponding positions of the infrared rangefinder (7) are the same.

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