Motor function test bench for electric actuator

Abstract

The utility model relates to motor detection technical field, concretely is a kind of electric actuator motor function test board, including workbench, upper mounting plate, lower mounting plate, circular plastic positioning bushing, inner conical plastic bushing, the top layer of workbench has several through holes, upper mounting plate is set up in the top of through hole, the top of upper mounting plate is equipped with several circular plastic positioning bushing, the shaft coupling of motor is inserted into circular plastic positioning bushing, and the O-ring of shaft coupling surface is contacted with the inner hole of circular plastic positioning bushing, the bottom layer of workbench is equipped with lower mounting plate, the top of lower mounting plate is equipped with several inner conical plastic bushing, after the screw rod of motor bottom passes through through hole, inserts corresponding inner conical plastic bushing, and the lower end of screw rod is contacted with the conical inner hole of inner conical plastic bushing.The utility model compares with prior art, realize the installation of motor shaft coupling, screw rod, to simulate the real transmission structure of motor, realize the measurement of motor positive, reverse stroke.

Description

Technical Field

[0001] This utility model relates to the field of motor testing technology, specifically to a functional test bench for electric actuator motors. Background Technology

[0002] Currently, it is necessary to test the function of the electric actuator motor to assess whether the function of the electric actuator motor meets the design requirements.

[0003] Manual testing of electric actuator motors suffers from low efficiency and poor stability. Existing electric actuator motor function testing equipment is structurally complex, requires a considerable amount of time to complete motor installation and testing, and is inconvenient to use.

[0004] Therefore, it is necessary to design an electric actuator motor functional test bench to realize the installation of motor couplings and lead screws, thereby simulating the real transmission structure of the motor and improving testing efficiency and convenience. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an electric actuator motor function test bench to realize the installation of motor couplings and lead screws, thereby simulating the real transmission structure of the motor and improving testing efficiency and convenience.

[0006] To achieve the above objectives, this utility model is an electric actuator motor function test bench, including a workbench, an upper mounting plate, a lower mounting plate, circular plastic positioning bushings, and inner conical plastic bushings. The top layer of the workbench has several through holes, and the upper mounting plate is mounted above the through holes. Several circular plastic positioning bushings are installed on the top of the upper mounting plate. The motor coupling is inserted into the circular plastic positioning bushing, and the O-ring on the surface of the coupling contacts the inner hole of the circular plastic positioning bushing. The bottom layer of the workbench is equipped with a lower mounting plate, and several inner conical plastic bushings are installed on the top of the lower mounting plate. The lead screw at the bottom of the motor passes through the through hole and is inserted into the corresponding inner conical plastic bushing, and the lower end of the lead screw contacts the conical inner hole of the inner conical plastic bushing.

[0007] The motor is equipped with a rocker arm, limit switch one, and limit switch two. Limit switch one and limit switch two are respectively set at the extreme positions of the rocker arm in the forward and reverse directions.

[0008] The workbench is equipped with an electrical control box on its top and side. The electrical control box contains an intermediate relay one, an intermediate relay two, a current transformer, a one-to-two signal distributor, a PLC, and LEDs. The workbench surface is equipped with a multi-channel changeover switch and an oscilloscope.

[0009] The upper mounting plate is installed on the top layer of the workbench using a column.

[0010] The workbench is equipped with casters on its four legs.

[0011] The inner conical plastic bushing, the circular plastic positioning bushing, and the through holes are all six in number.

[0012] Compared with existing technologies, this invention designs an electric actuator motor functional test bench to install the motor coupling and lead screw, thereby simulating the actual transmission structure of the motor and realizing the measurement of the motor's forward and reverse strokes. This invention can test multiple motors simultaneously and has the advantages of simple installation, high efficiency, and safe and stable operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is the front view of the present invention.

[0015] Figure 3 for Figure 2 Enlarged view of point A.

[0016] Figure 4 for Figure 2 Enlarged view of point B.

[0017] Figure 5 This is a schematic diagram of the top structure of the motor.

[0018] Figure 6 This is a block diagram illustrating the electrical principle of this utility model. Detailed Implementation

[0019] The present invention will now be further described with reference to the accompanying drawings.

[0020] See Figure 1 , Figure 2 This utility model is an electric actuator motor function test bench, including a workbench, an upper mounting plate, a lower mounting plate, circular plastic positioning bushings, and inner conical plastic bushings. The workbench 6 has several through holes on its top layer. The upper mounting plate 1 is mounted above these through holes. Several circular plastic positioning bushings 3 are mounted on the top of the upper mounting plate 1. The coupling 24 of the motor 2 is inserted into the circular plastic positioning bushings 3, and the O-rings 25 on the surface of the coupling 24 contact the inner holes of the circular plastic positioning bushings 3. Figure 3 As shown, a lower mounting plate 4 is installed on the bottom of the workbench 6, and several inner conical plastic bushings 9 are installed on the top of the lower mounting plate 4. After the lead screw 5 at the bottom of the motor 2 passes through the through hole, it is inserted into the corresponding inner conical plastic bushing 9, and the lower end of the lead screw 5 contacts the conical inner hole of the inner conical plastic bushing 9. Figure 4 As shown.

[0021] The circular plastic positioning bushing 3 is used to support the coupling 24, and the inner conical plastic bushing 9 is used to position the lead screw 5. The friction between the O-ring 25 and the inner hole of the circular plastic positioning bushing 3 serves as a fixation, enabling the motor 2, which is equipped with the lead screw 5 and the coupling 21, to operate stably. The conical inner hole of the inner conical plastic bushing 9 can prevent the lead screw 5 from being disturbed significantly when the motor 2 rotates.

[0022] For ease of fixing, the upper mounting plate 1 is installed on the top layer of the workbench 6 using a column.

[0023] For ease of use, the four legs of the workbench 6 are equipped with casters.

[0024] Preferably, the inner conical plastic bushing 9, the circular plastic positioning bushing 3, and the through holes are all 6, which can simultaneously test 6 motors. If necessary, the number can be adjusted according to the usage requirements.

[0025] See Figure 5 The motor 2 is equipped with a rocker arm 21, a first limit switch 22, and a second limit switch 23. The first limit switch 22 and the second limit switch 23 are respectively set at the extreme positions of the rocker arm 21 in the forward and reverse directions. The initial position of the rocker arm 21 is set at the starting position of the first limit switch 22, which is the end position of the reverse rotation of the motor 2. The motor 2 starts to rotate forward and rotates to the end position of the second limit switch 23, which is the end position of the forward rotation of the motor 2.

[0026] In operation, the motor 2, with the lead screw 5 and coupling 21 assembled, is placed sequentially into the circular plastic positioning bushing 3 and the inner conical plastic bushing 9. The number that can be placed in each test depends on the number of inner conical plastic bushings 9, circular plastic positioning bushings 3, and through holes. In this example, six motors can be placed in each test. After placement, the lead wires of the motors to be tested are connected to their corresponding sockets.

[0027] After the test begins, drive motor 2 rotates forward. Once motor 2 has rotated to its forward position, it will automatically start to rotate in reverse. During this process, you can check the motor's operating status.

[0028] Preferably, the number of motor pulses can be displayed by an oscilloscope 8, and the current value of the motor during operation can be calculated by a PLC. An electrical control box 7 is installed on the top and side of the workbench 6, and an intermediate relay 1, an intermediate relay 2, a current transformer, a one-to-two signal distributor, a PLC, and LEDs are installed in the electrical control box 7. A multi-channel changeover switch and an oscilloscope 8 are arranged on the table surface of the workbench 6.

[0029] See Figure 6Each motor 2 has an intermediate relay connected in series in its power supply circuit. The PLC controls the start, stop, and forward / reverse rotation of the motor 2 by controlling the on / off state of the intermediate relay. A current transformer is installed in the power supply circuit of each motor 2. The current transformer monitors the current of the motor 2 to determine whether the motor 2 has reached its maximum forward or reverse rotation position. The PLC calculates the real-time value of the motor current by reading the current signal from the current transformer. By measuring the number of pulses and the current value of the motor 2 during operation, motors with incorrect stroke or excessive current can be easily eliminated in the preceding process.

[0030] Motor 2 is equipped with a reed sensor. The signal output terminal of the reed sensor of each motor 2 is connected to the input terminal of a one-to-two signal distributor. The reed signal is split into two paths by the signal distributor. One path is connected to the PLC, which measures the number of times the reed sensor switches on and off to determine the maximum stroke of the motor in forward and reverse rotation. The other path, connected in series with intermediate relay 2 and LED, is connected to the signal input terminal of oscilloscope 8. By manually rotating the multi-channel switch, the user can switch to the intermediate relay 2 corresponding to different motors 2, thereby controlling the on / off state of the reed signal and LED of different motors 2. Oscilloscope 8 provides feedback on the reed signal by reading the voltage drop of the LED. In addition, oscilloscope 8 can also determine the condition of the reed sensor of motor 2 by measuring the duration of LED switching.

[0031] This invention designs an electric actuator motor functional test bench to install motor couplings and lead screws, thereby simulating the actual transmission structure of the motor and measuring the forward and reverse strokes of the motor. This invention can test multiple motors simultaneously and has the advantages of simple installation, high efficiency, and safe and stable operation.

Claims

1. A functional testing bench for an electric actuator motor, comprising a worktable, an upper mounting plate, a lower mounting plate, a circular plastic positioning bushing, and an inner conical plastic bushing, characterized in that: The top layer of the workbench (6) has several through holes. The upper mounting plate (1) is mounted above the through holes. Several circular plastic positioning bushings (3) are installed on the top of the upper mounting plate (1). The coupling (24) of the motor (2) is inserted into the circular plastic positioning bushing (3), and the O-ring (25) on the surface of the coupling (24) contacts the inner hole of the circular plastic positioning bushing (3). The bottom layer of the workbench (6) is equipped with a lower mounting plate (4). Several inner conical plastic bushings (9) are installed on the top of the lower mounting plate (4). The lead screw (5) at the bottom of the motor (2) passes through the through hole and is inserted into the corresponding inner conical plastic bushing (9), and the lower end of the lead screw (5) contacts the conical inner hole of the inner conical plastic bushing (9).

2. The electric actuator motor function test bench according to claim 1, characterized in that: The motor (2) is equipped with a rocker arm (21), a limit switch one (22), and a limit switch two (23). The limit switch one (22) and the limit switch two (23) are respectively set at the extreme positions of the rocker arm (21) in the forward and reverse directions.

3. The electric actuator motor function test bench according to claim 1, characterized in that: The top and side of the workbench (6) are respectively equipped with an electrical control box (7). The electrical control box (7) contains an intermediate relay one, an intermediate relay two, a current transformer, a one-to-two signal distributor, a PLC, and an LED. The workbench (6) is equipped with a multi-channel changeover switch and an oscilloscope (8).

4. The electric actuator motor function test bench according to claim 1, characterized in that: The upper mounting plate (1) is installed on the top layer of the workbench (6) using a column.

5. The electric actuator motor function test bench according to claim 1, characterized in that: The workbench (6) is equipped with casters on its four legs.

6. The electric actuator motor function test bench according to claim 1, characterized in that: The inner conical plastic bushing (9), the circular plastic positioning bushing (3), and the through holes are all 6 in number.

Images