CN116359733A - Testing device and method for miniature servo motor for assembly - Google Patents
Testing device and method for miniature servo motor for assembly Download PDFInfo
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- CN116359733A CN116359733A CN202310648735.4A CN202310648735A CN116359733A CN 116359733 A CN116359733 A CN 116359733A CN 202310648735 A CN202310648735 A CN 202310648735A CN 116359733 A CN116359733 A CN 116359733A
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a testing device and a testing method for a miniature servo motor for assembly, which belong to the technical field of motor testing and comprise a base, wherein two vertical plates are arranged on the base, a testing groove is rotationally connected between the vertical plates, two hydraulic cylinders are movably arranged on the base, a testing table is further arranged in the testing groove, a retention mechanism for fixing the motor is arranged on the testing table, a testing mechanism is arranged in front of the retention mechanism, and the testing mechanism is connected with a torque rotation speed sensor through a coupling. According to the invention, the hydraulic cylinder arranged at the bottom and the plurality of first telescopic springs arranged in the test groove simulate the bump state of the real environment through the telescopic action of the hydraulic cylinder, so that the test of the motor is more accurate, the position between the adjusting plate and the test bench can be adjusted through the first threaded column, the size of the bump state can be adjusted according to the requirement by matching with the telescopic action frequency of the hydraulic cylinder, and therefore, the test is more fit with the real environment, and the accuracy is increased.
Description
Technical Field
The invention belongs to the technical field of motor testing, and particularly relates to a testing device and method for a miniature servo motor for assembly.
Background
The servo motor is an engine for controlling mechanical elements to run in a servo system, is an indirect speed change device for a supplementary motor, can control the speed, has very accurate position accuracy, and can convert voltage signals into torque and rotating speed to drive a control object. The rotation speed of the rotor of the servo motor is controlled by an input signal, can react quickly, is used as an executive component in an automatic control system, has the characteristics of small electromechanical time constant, high linearity and the like, and can convert the received electric signal into angular displacement or angular speed output on the motor shaft.
The servo motor is subjected to multiple tests to detect the performance of the motor before leaving the factory, the existing test on the multiple performances of the motor is generally carried out by adopting one-to-one type through multiple devices, the servo motor needs to be continuously disassembled and installed, and the test is very complicated; the existing motor is generally fixed on a certain die for performance test, but when the motor is actually used, the environmental factors are changed, for example, the use of the automobile assembly motor can be accompanied with the bumpy road surface, if the motor is fixed for test, the actually detected parameters are inaccurate, and thus errors are easy to generate.
Disclosure of Invention
The invention aims to provide a testing device and a testing method for a miniature servo motor for assembly, which are used for solving the problems faced in the background technology.
The aim of the invention can be achieved by the following technical scheme:
the testing device of the miniature servo motor for assembly comprises a base, wherein two vertical plates are arranged on the base, a controller is arranged on one of the vertical plates, a testing groove is rotationally connected between the two vertical plates, two hydraulic cylinders are movably arranged on the base, and the output ends of the hydraulic cylinders are movably connected with the bottom of the testing groove;
the test groove is internally provided with a test board, a retention mechanism for fixing the motor is arranged on the test board, a test mechanism for testing the motor is arranged in front of the retention mechanism, the test mechanism is connected with a torque rotation speed sensor through a coupler, the torque rotation speed sensor is connected with a load wheel through the coupler, and one side of the load wheel is connected with a load adjusting mechanism;
the test groove is characterized in that a first threaded column is connected to the periphery of the inner wall of the test groove in a threaded mode, an adjusting plate is movably connected to the tail end of the first threaded column, a plurality of first telescopic springs are arranged on the adjusting plate, and the tail end of each first telescopic spring is connected with the test bench.
Further, the retention mechanism comprises a fixed groove, a rotating rod is arranged in the fixed groove, two spiral grooves with opposite screw thread directions are symmetrically arranged on the rotating rod, sliding plates are matched on the two spiral grooves, and the sliding plates are in sliding connection with the fixed groove.
Further, a first sliding groove is further formed in the sliding plate, a screw rod is connected to the first sliding groove in a rotating mode, a first sliding block is matched on the screw rod, a supporting plate is mounted on the first sliding block, and rubber pads are further mounted on two sides, located on the first sliding groove, of the sliding plate.
Further, the testing mechanism comprises a support column, a shaft coupling is connected to the support column through a rotating shaft, a sleeve is sleeved on the shaft coupling, a closed spiral groove is formed in the outer wall of the sleeve, L-shaped plates are symmetrically arranged on two sides of the support column, a second sliding groove is formed in the L-shaped plates, a second sliding block is arranged in the second sliding groove, a sliding column is arranged on one side, close to the sleeve, of the second sliding block, the sliding column is in sliding connection with the groove, a second threaded column is connected to one side, close to the retention mechanism, of the second sliding block through threads, a knocking hammer is connected to the tail end of the second threaded column, and a detection mechanism is further arranged on the second sliding groove.
Further, the detection mechanism comprises a detection plate arranged in the second sliding groove, a plurality of sliding rods are arranged on the detection plate at equal intervals, a second telescopic spring is sleeved on one end, close to the second sliding block, of each sliding rod, the second telescopic spring is connected with the detection plate, a displacement sensor is arranged on the other end of each sliding rod, and each displacement sensor is electrically connected with the controller.
Further, the load adjusting mechanism comprises a mounting plate arranged on the test bench, two electric control cylinders are arranged on the mounting plate, an extrusion plate is arranged at the output end of each electric control cylinder, and an extrusion column is arranged on each extrusion plate.
Further, a butt joint groove is further formed in one side, close to the load adjusting mechanism, of the load wheel, and the extrusion column and the butt joint groove are matched with each other.
The method for testing the miniature servo motor for assembly adopts the testing device for the miniature servo motor for assembly for testing, and comprises the following steps:
firstly, placing a motor to be tested on a supporting plate on a retention mechanism, driving a rotating rod to rotate to adjust the distance between two sliding plates, and fixing the motor by extrusion through the two sliding plates;
step two, a motor shaft is connected with a coupler on the testing mechanism, the other end of the motor shaft is connected with a torque rotating speed sensor, and the torque rotating speed sensor is connected with a load wheel through the coupler to form a testing unit;
driving the two hydraulic cylinders to stretch out and draw back through the controller, and adjusting the position of the test bench to simulate a jolt state in a real environment by matching with the first telescopic springs around the test bench through the stretching out and drawing back of the hydraulic cylinders;
step four, starting the motor to rotate, and testing the torque of the motor through the connection of the coupler and the torque rotating speed sensor;
step five, driving the extrusion column to move through the expansion and contraction of the electric control cylinder, so as to extrude the load wheel, and adjusting the load size through the change of friction force to test the load of the motor;
step six, simultaneously rotating a second threaded column, adjusting the position of the knocking hammer, and enabling a second sliding block in a second sliding groove to move back and forth along the axial direction of the motor to drive the knocking hammer to move through the cooperation of a closed spiral groove and the sliding column when the motor shaft rotates, so that the motor is subjected to collision test;
step seven, the second sliding block is contacted with one end of the sliding rod, so that the sliding rod is extruded and driven to displace, and the displacement is obtained through a displacement sensor, so that the axial deflection of the motor can be tested;
in the whole test, the distance between the test table and the adjusting plate is adjusted through rotation of the first threaded column, and the jolt state of different degrees is simulated by matching with the telescopic frequency of the two hydraulic cylinders.
The invention has the beneficial effects that:
according to the invention, the hydraulic cylinder arranged at the bottom and the plurality of first telescopic springs arranged in the test groove simulate the bump state of the real environment through the telescopic action of the hydraulic cylinder, so that the test of the motor is more accurate, the position between the adjusting plate and the test bench can be adjusted through the first threaded column, the size of the bump state can be adjusted according to the requirement by matching with the telescopic action frequency of the hydraulic cylinder, and therefore, the test is more fit with the real environment, and the accuracy is increased.
According to the invention, multiple tests can be carried out on the motor at the same time, and the second sliding block is driven to move back and forth along the direction of the coupling through the cooperation of the closed spiral groove and the sliding column at the same time of torque measurement, so that the knocking hammer is driven to move, and a collision experiment is carried out on the motor; and one end of the sliding rod is attached to the second sliding block, and the displacement of the sliding rod can be obtained through the displacement sensor, so that the shaft deflection is tested at the same time.
According to the invention, the row of the plurality of sliding rods are independently arranged, each sliding rod is provided with the displacement sensor, and the integral offset of the axial position of the motor can be measured by combining the displacement changes of the plurality of displacement sensors, so that the initial position of the motor shaft with offset can be prejudged, and the subsequent maintenance is convenient.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a portion of a test slot according to the present invention;
FIG. 3 is a schematic view of a retention mechanism according to the present invention;
FIG. 4 is a schematic diagram of a testing mechanism according to the present invention;
FIG. 5 is a schematic diagram of the structure of the detecting mechanism according to the present invention;
FIG. 6 is a schematic view of a load adjusting mechanism according to the present invention;
fig. 7 is a schematic structural view of a load wheel according to the present invention.
The drawings illustrate:
1. a base; 101. a vertical plate; 102. a test slot; 103. a hydraulic cylinder; 104. a first threaded post; 105. an adjusting plate; 106. a first extension spring; 2. a controller; 3. a test bench; 4. a retention mechanism; 401. a fixing groove; 402. a rotating lever; 403. a screw groove; 404. a slide plate; 405. a first chute; 406. a screw rod; 407. a first slider; 408. a support plate; 409. a rubber pad; 5. a testing mechanism; 501. a support column; 502. a sleeve; 503. a groove; 504. an L-shaped plate; 505. a second chute; 506. a second slider; 507. a spool; 508. a second threaded post; 509. knocking a hammer; 6. a torque rotation speed sensor; 7. a load wheel; 701. a butt joint groove; 8. a load adjustment mechanism; 801. a mounting plate; 802. an electric control cylinder; 803. an extrusion plate; 804. an extrusion column; 9. a detection mechanism; 901. a detection plate; 902. a slide bar; 903. a second extension spring; 904. a displacement sensor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The utility model provides an assembly is with microminiature servo motor's testing arrangement, as shown in fig. 1, fig. 2, including base 1, base 1 bottom is provided with the drive wheel, can drive whole testing arrangement and remove, be equipped with two risers 101 on the base 1, install controller 2 on one of them riser 101, controller 2 is used for controlling the electrical property part in the whole testing arrangement, thereby be convenient for operate, rotate between two risers 101 and be connected with a test tank 102, still the activity is equipped with two pneumatic cylinders 103 on the base 1, the output of pneumatic cylinder 103 and the bottom swing joint of test tank 102, still be equipped with a testboard 3 in the test tank 102, still threaded connection has first screw thread post 104 on the inner wall periphery of test tank 102, first screw thread post 104 accessible manual regulation rotates, the end swing joint of first screw thread post 104 has regulating plate 105, be equipped with a plurality of first expansion springs 106 on the regulating plate 105, the end and the testboard 3 are connected of first expansion springs 106, the expansion of pneumatic cylinder 103 can drive whole test tank 102 and rock back and forth, the first expansion springs 106 that the cooperation set up all around can drive testboard 3 and rock, thereby test board 3 takes place to rock, the test board 3, the accurate condition is adjusted to make the test board that can be adjusted according to the test board's that the test board is more accurate, thereby the test board is adjusted to the test board is more accurate with the test board is adjusted to the test board is required to the test position according to the test board's 3, the test result, the accurate adjustment is adjusted the test board is more accurate, and can be adjusted the test platform is adjusted. Be equipped with the fixture 4 that is used for fixing the motor on the testboard 3, the place ahead of fixture 4 is equipped with the testing machine 5 that tests the motor, testing machine 5 has moment of torsion rotational speed sensor 6 through the coupling joint, moment of torsion rotational speed sensor 6 has load wheel 7 through the coupling joint, one side of load wheel 7 is connected with load adjustment mechanism 8, the motor that awaits measuring carries out the location through fixture 4, then carries out multiple test to the motor through testing machine 5, moment of torsion rotational speed sensor 6, load wheel 7, and load adjustment mechanism 8 adjustable load size, thereby conveniently test the motor.
As shown in fig. 3, the retention mechanism 4 includes a fixed slot 401, a rotating rod 402 is disposed in the fixed slot 401, a driver for driving is disposed at one end of the rotating rod 402, two screw slots 403 with opposite screw directions are symmetrically disposed on the rotating rod 402, sliding plates 404 are respectively fitted on the two screw slots 403, the sliding plates 404 are slidably connected with the fixed slot 401, a first sliding slot 405 is further disposed on the sliding plates 404, a screw rod 406 is rotationally connected with the first sliding slot 405, a first sliding block 407 is fitted on the screw rod 406, a supporting plate 408 is mounted on the first sliding block 407, and rubber pads 409 are also mounted on two sides of the sliding plates 404 located on the first sliding slot 405. Because the motor size can be different, so in order to be convenient for fix the motor, through the rotation of dwang 402, adjust the distance between two slide 404, it is spacing fixed to the motor through the extrusion of two slide 404, the height of two backup pads 408 can be adjusted through the rotation of lead screw 406 according to the motor size, thereby support the motor, and the motor surface probably is uneven, for convenient centre gripping is fixed, set up two rubber pads 409, it can take place certain deformation, make the laminating at the motor surface, thereby increase the suitability.
As shown in fig. 1 and 4, the testing mechanism 5 includes a support column 501, a coupling is connected to the support column 501 through a rotating shaft, a sleeve 502 is sleeved on the coupling, a closed spiral groove 503 is formed on the outer wall of the sleeve 502, an L-shaped plate 504 is further symmetrically arranged on two sides of the support column 501, a second sliding groove 505 is formed in the L-shaped plate 504, a second sliding block 506 is arranged in the second sliding groove 505, a sliding column 507 is mounted on one side of the second sliding block 506, which is close to the sleeve 502, the sliding column 507 is slidably connected with the groove 503, a second threaded column 508 is in threaded connection with one side of the second sliding block 506, the end of the second threaded column 508 is connected with a knocking hammer 509, a detection mechanism 9 is further arranged on the second sliding groove 505, one end of the coupling is connected with a shaft of the testing motor, the other end of the coupling is connected with a torque rotation speed sensor 6, so that the motor torque is tested, and during testing, the sleeve 502 can drive the surface to rotate together due to rotation of the coupling, the second sliding groove 503 is matched with the sliding column 507, the second sliding block 506 in the second sliding groove 505 is driven to move along the coupling 509, the second sliding hammer 506 moves along the direction of the shaft 509, the second sliding hammer 508 is driven by the second sliding block 506, the driving hammer 508, and the second sliding hammer 508 can move along the direction 509, and the second sliding hammer 509 can move back and forth when the second sliding hammer is required to be adjusted to the second sliding hammer.
As shown in fig. 5, the detection mechanism 9 includes a detection plate 901 installed in the second chute 505, a plurality of slide bars 902 are equidistantly arranged on the detection plate 901, a second extension spring 903 is sleeved on one end of the slide bar 902 close to the second slide block 506, the second extension spring 903 is connected with the detection plate 901, a displacement sensor 904 is installed on the other end of the slide bar 902, and each displacement sensor 904 is electrically connected with the controller 2. The displacement sensors 904 are electrically connected with the controller 2, so that the result of each displacement sensor 904 can be displayed on the controller 2, and therefore, a worker can observe and record conveniently, one end of the arranged sliding rod 902 is attached to the second sliding block 506, so that the motor can be subjected to shaft deflection test, when the shaft of the motor deflects, the sliding rod 902 is extruded by the second sliding block 506, the sliding rod 902 is driven to generate displacement change, the displacement is obtained by the displacement sensors 904, the shaft deflection is tested while the torque is tested, and the testing efficiency can be greatly improved; and a row of a plurality of slide bars 902 that set up independently set up, and all be equipped with a displacement sensor 904 on every slide bar 902, through combining the displacement change of a plurality of displacement sensors 904, can measure the whole offset of motor axial position to can prejudge the initial position that the motor shaft takes place the skew, thereby be convenient for follow-up maintenance.
As shown in fig. 6 and 7, the load adjusting mechanism 8 includes a mounting plate 801 disposed on the test bench 3, two electric control cylinders 802 are mounted on the mounting plate 801, a squeeze plate 803 is mounted on an output end of the electric control cylinders 802, a squeeze column 804 is mounted on the squeeze plate 803, a docking groove 701 is further disposed on a side of the load wheel 7, which is close to the load adjusting mechanism 8, and the squeeze column 804 and the docking groove 701 are mutually matched. Because ordinary load test needs to be changed different grade type load drive wheel to the test is got up more troublesome, and the flexible extrusion post 804 that drives of automatically controlled cylinder 802 of this scheme adoption is flexible, extrudes load wheel 7, thereby increases the frictional force of load wheel 7, increases the load, need not dismantle the change, can directly adjust the load size through the flexible of automatically controlled cylinder 802, and it can change the regulation in the test process, and is simpler, and test structure is also more accurate.
When the testing device is used, a motor to be tested is firstly placed on a supporting plate 408 on a retention mechanism 4, then a rotating rod 402 is driven to rotate, the distance between two sliding plates 404 is adjusted, the motor is extruded and fixed through the two sliding plates 404, after the fixing is completed, a motor shaft is connected with a coupler on a testing mechanism 5, the other end of the motor shaft is connected with a torque rotating speed sensor 6, the torque rotating speed sensor 6 is connected with a load wheel 7 through the coupler for testing, during the testing, firstly, the controller 2 drives two hydraulic cylinders 103 to stretch and retract, the positions of the testing table 3 can be adjusted through the stretch and retract of the hydraulic cylinders 103 and the first telescopic springs 106 around the testing table 3, so that the jolt state in the real environment is simulated, then the motor rotates, the motor torque can be tested through the connection of the coupler and the torque rotating speed sensor 6, the load size can be further moved through the stretch and the telescopic operation of an electric control cylinder 802, the load wheel 7 is extruded, the load size is adjusted through the change of friction force of the load wheel for testing; simultaneously, the second threaded column 508 can be rotated to adjust the position of the knocking hammer 509, and when a motor shaft rotates, the second sliding block 506 in the second sliding groove 505 can be driven to move back and forth along the axial direction of the motor by the cooperation of the closed spiral groove 503 and the sliding column 507 when the motor rotates, so that the knocking hammer 509 is driven to move, and the motor is subjected to collision test; in the test, if the motor shaft is deviated, the second sliding block 506 is extruded, so that the sliding rod 902 is extruded to drive the sliding rod 902 to displace, and the displacement amount is obtained through the displacement sensor 904, so that the axial deviation of the motor can be tested; in the whole test, the distance between the test board 3 and the adjusting plate 105 can be adjusted through the rotation of the first threaded column 104, and the jolt states of different degrees can be simulated by matching the telescopic frequencies of the two hydraulic cylinders 103, so that the test is more accurate.
In summary, the test method of the miniature servo motor for assembly mainly comprises the following steps:
step one, placing a motor to be tested on a supporting plate 408 on a retention mechanism 4, driving a rotating rod 402 to rotate to adjust the distance between two sliding plates 404, and fixing the motor by extrusion through the two sliding plates 404;
step two, a motor shaft is connected with a coupler on the testing mechanism 5, the other end of the motor shaft is connected with a torque rotation speed sensor 6, and the torque rotation speed sensor 6 is connected with a load wheel 7 through the coupler to form a testing unit;
step three, driving the two hydraulic cylinders 103 to stretch out and draw back through the controller 2, and adjusting the position of the test bench 3 by matching with the first stretching springs 106 around the test bench 3 through stretching out and drawing back of the hydraulic cylinders 103 so as to simulate a jolt state in a real environment;
step four, starting the motor to rotate, and testing the torque of the motor through the connection of the coupler and the torque rotating speed sensor 6;
step five, driving the extrusion column 804 to move through the expansion and contraction of the electric control cylinder 802, so as to extrude the load wheel 7, and adjusting the load size through the change of friction force to test the motor load;
step six, simultaneously rotating the second threaded column 508, adjusting the position of the knocking hammer 509, and when the motor shaft rotates, driving the second sliding block 506 in the second sliding groove 505 to move back and forth along the motor axial direction through the cooperation of the closed spiral groove 503 and the sliding column 507 when the motor rotates, so as to drive the knocking hammer 509 to move, and performing collision test on the motor;
step seven, the second sliding block 506 is contacted with one end of the sliding rod 902, so that the sliding rod 902 is extruded to drive the sliding rod 902 to displace, and the displacement is obtained through the displacement sensor 904, so that the axial displacement of the motor can be tested;
in the whole test, the distance between the test bench 3 and the adjusting plate 105 is adjusted by rotating the first threaded column 104, and the jolt states of different degrees are simulated by matching the telescopic frequencies of the two hydraulic cylinders 103.
The foregoing is merely illustrative and explanatory of the principles of the invention, as various modifications and additions may be made to the specific embodiments described, or similar thereto, by those skilled in the art, without departing from the principles of the invention or beyond the scope of the appended claims.
Claims (8)
1. The testing device of the miniature servo motor for assembly comprises a base (1), and is characterized in that two vertical plates (101) are arranged on the base (1), a controller (2) is arranged on one vertical plate (101), a testing groove (102) is rotationally connected between the two vertical plates (101), two hydraulic cylinders (103) are movably arranged on the base (1), and the output ends of the hydraulic cylinders (103) are movably connected with the bottom of the testing groove (102);
a test table (3) is further arranged in the test groove (102), a retention mechanism (4) for fixing the motor is arranged on the test table (3), a test mechanism (5) for testing the motor is arranged in front of the retention mechanism (4), the test mechanism (5) is connected with a torque rotation speed sensor (6) through a coupler, the torque rotation speed sensor (6) is connected with a load wheel (7) through the coupler, and one side of the load wheel (7) is connected with a load adjusting mechanism (8);
the testing device is characterized in that a first threaded column (104) is further connected to the periphery of the inner wall of the testing groove (102) in a threaded mode, an adjusting plate (105) is movably connected to the tail end of the first threaded column (104), a plurality of first telescopic springs (106) are arranged on the adjusting plate (105), and the tail end of each first telescopic spring (106) is connected with the testing table (3).
2. The testing device of the miniature servo motor for assembly according to claim 1, wherein the retention mechanism (4) comprises a fixed groove (401), a rotating rod (402) is arranged in the fixed groove (401), two spiral grooves (403) with opposite screw thread directions are symmetrically arranged on the rotating rod (402), sliding plates (404) are matched on the two spiral grooves (403), and the sliding plates (404) are in sliding connection with the fixed groove (401).
3. The testing device of the miniature servo motor for assembly according to claim 2, wherein the sliding plate (404) is further provided with a first sliding groove (405), a screw rod (406) is rotationally connected to the first sliding groove (405), a first sliding block (407) is matched with the screw rod (406), a supporting plate (408) is mounted on the first sliding block (407), and rubber pads (409) are further mounted on two sides of the sliding plate (404) located on the first sliding groove (405).
4. The testing device for the miniature servo motor for assembly according to claim 1, wherein the testing mechanism (5) comprises a supporting column (501), a coupler is connected to the supporting column (501) through a rotating shaft, a sleeve (502) is sleeved on the coupler, a closed spiral groove (503) is formed in the outer wall of the sleeve (502), L-shaped plates (504) are further symmetrically arranged on two sides of the supporting column (501), a second sliding groove (505) is formed in the L-shaped plates (504), a second sliding block (506) is arranged in the second sliding groove (505), a sliding column (507) is arranged on one side, close to the sleeve (502), of the second sliding block (506) and is in sliding connection with the groove (503), a second threaded column (508) is connected to one side, close to the retaining mechanism (4), of the second threaded column (508) through a knocking hammer (509) is connected to the tail end of the second threaded column (508), and a detection mechanism (9) is further arranged on the second sliding groove (505).
5. The testing device of the miniature servo motor for assembly according to claim 4, wherein the detection mechanism (9) comprises a detection plate (901) arranged in the second sliding groove (505), a plurality of sliding rods (902) are equidistantly arranged on the detection plate (901), a second telescopic spring (903) is sleeved on one end, close to the second sliding block (506), of each sliding rod (902), the second telescopic spring (903) is connected with the detection plate (901), a displacement sensor (904) is arranged on the other end of each sliding rod (902), and each displacement sensor (904) is electrically connected with the controller (2).
6. The test device of the miniature servo motor for assembly according to claim 1, wherein the load adjusting mechanism (8) comprises a mounting plate (801) arranged on the test bench (3), two electric control cylinders (802) are arranged on the mounting plate (801), an extrusion plate (803) is arranged on the output end of each electric control cylinder (802), and an extrusion column (804) is arranged on each extrusion plate (803).
7. The testing device of the miniature servo motor for assembly according to claim 6, wherein a butt joint groove (701) is further formed on one side of the load wheel (7) close to the load adjusting mechanism (8), and the extrusion column (804) is matched with the butt joint groove (701).
8. A method for testing an assembly micro-miniature servo motor, the method using the assembly micro-miniature servo motor testing device according to any one of claims 1-7, the method comprising:
step one, placing a motor to be tested on a supporting plate (408) on a retention mechanism (4), driving a rotating rod (402) to rotate so as to adjust the distance between two sliding plates (404), and fixing the motor by extrusion through the two sliding plates (404);
step two, a motor shaft is connected with a coupler on the testing mechanism (5), the other end of the motor shaft is connected with a torque rotating speed sensor (6), and the torque rotating speed sensor (6) is connected with a load wheel (7) through the coupler to form a testing unit;
step three, driving the two hydraulic cylinders (103) to stretch through the controller (2), and adjusting the position of the test bench (3) to simulate a jolt state in a real environment by matching with the first telescopic springs (106) around the test bench (3) through the stretching of the hydraulic cylinders (103);
step four, starting the motor to rotate, and testing the torque of the motor through the connection of the coupler and the torque rotating speed sensor (6);
step five, driving the extrusion column (804) to move through the expansion and contraction of the electric control cylinder (802), so as to extrude the load wheel (7), and adjusting the load size through the change of friction force to test the motor load;
step six, simultaneously rotating a second threaded column (508), adjusting the position of a knocking hammer (509), and when a motor shaft rotates, driving a second sliding block (506) in a second sliding groove (505) to move back and forth along the axial direction of the motor through the cooperation of a closed spiral groove (503) and the sliding column (507) when the motor rotates, so as to drive the knocking hammer (509) to move, and performing collision test on the motor;
step seven, the second sliding block (506) is contacted with one end of the sliding rod (902), so that the sliding rod (902) is extruded and driven to displace, and the displacement amount is obtained through the displacement sensor (904), so that the axial displacement of the motor can be tested;
in the whole test, the distance between the test table (3) and the adjusting plate (105) is adjusted through rotation of the first threaded column (104), and the jolt states of different degrees are simulated by matching with the telescopic frequencies of the two hydraulic cylinders (103).
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| CN202310648735.4A CN116359733B (en) | 2023-06-02 | 2023-06-02 | Testing device and method for miniature servo motor for assembly |
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| CN202310648735.4A CN116359733B (en) | 2023-06-02 | 2023-06-02 | Testing device and method for miniature servo motor for assembly |
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| CN116359733B CN116359733B (en) | 2023-08-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN116359733B (en) | 2023-08-08 |
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