Inertia testing device and method for production testing of AC permanent magnet synchronous servo motor

Abstract

The invention relates to the technical field of motor inertia testing, and discloses an inertia testing device for production testing of an AC permanent magnet synchronous servo motor, comprising: a box body, a test box and a test assembly, wherein a control panel is fixedly connected to one side of the box body, a rotating groove is provided inside the box body, the inside of the rotating groove is rotatably connected to the test box through a rotating rod, a mounting plate and a test assembly are fixedly connected to the internal top wall of the test box, a lifting assembly is arranged inside the box body, a moving assembly and a fixed assembly are arranged inside the test box, a test assembly is arranged inside the moving assembly, and through the coordinated use of the test box and the lifting assembly, a cylinder drives a first slider to move through a telescopic rod, and then the first slider drives a support bar to move through a support plate, and the support bar drives the test box to rotate through a second slider, so that the installation angle of a test motor inside the test box is offset, thereby achieving the effect of detecting different angles.

Description

Technical Field

[0001] The invention relates to the technical field of motor inertia testing, and in particular to an inertia testing device and method for production testing of an AC permanent magnet synchronous servo motor. Background Art

[0002] AC permanent magnet synchronous servo motor is a high-performance electric motor, which is widely used in occasions requiring precise position control, speed control and torque control. This type of motor has the characteristics of high efficiency and energy saving, compact design, good dynamic performance and low maintenance cost. Therefore, it has been widely used in industrial automation, robotics, electric vehicles and other fields. After the production of AC permanent magnet synchronous servo motor is completed, inertia test is required to ensure the performance of AC permanent magnet synchronous servo motor.

[0003] Publication No. CN209910896U discloses a servo motor inertia test device, including a mounting plate, on which a test motor and a motor to be tested are fixedly arranged, and a transmission shaft is rotatably arranged, and two ends of the transmission shaft are coaxially connected with the rotating shaft of the test motor and the rotating shaft of the motor to be tested through couplings, respectively; an inertia disk is vertically fixed on the transmission shaft, and two long grooves are arranged on the side surface of the transmission shaft along its axial direction, and the two long grooves are symmetrical about the central axis of the transmission shaft; a circular hole is arranged at the axis center of the inertia disk, and the transmission shaft passes through the circular hole in cooperation with the inner wall of the circular hole, and an insert block is fixed on the inner wall of the circular hole, and the insert block is inserted into the long groove in cooperation with the width of the long groove.

[0004] Although the above application and the prior art have the advantages of fast installation and disassembly speed, when performing inertia testing, the installation angle of the servo motor may change due to different usage scenarios, so when performing inertia testing, it is impossible to perform inertia testing on servo motors with different installation angles. When the servo motor is tested, the servo motor will cause the mounting plate to shake in the process of driving the transmission shaft to rotate, thus affecting the accuracy of the test results. Moreover, the device cannot perform testing according to the actual working environment of the servo motor. Therefore, it is impossible to perform inertia testing on the actual working environment of the servo motor during the test. Therefore, we propose an inertia testing device and method for production testing of AC permanent magnet synchronous servo motors. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an inertia testing device for production testing of AC permanent magnet synchronous servo motors, which has the advantages of detecting at different angles, preventing shaking and simulating working environments, and solves the problem that when performing inertia testing, the installation angle of the servo motor may change due to different usage scenarios, so it is impossible to perform inertia testing on servo motors with different installation angles, and when the servo motor is tested, the servo motor will cause the mounting plate to shake in the process of driving the transmission shaft to rotate, thereby affecting the accuracy of the test results, and the device cannot perform testing according to the actual working environment of the servo motor, so the inertia testing of the actual working environment of the servo motor cannot be performed during the test.

[0006] In order to achieve the above-mentioned purposes of detecting at different angles, preventing shaking and simulating working environment, the present invention provides the following technical solutions: an inertia testing device for production testing of AC permanent magnet synchronous servo motors, comprising: a box body, a test box and a test assembly fixedly installed on one side of the inner wall of the test box, one side of the box body is fixedly connected with a control panel, a rotating groove is opened inside the box body, the inside of the rotating groove is rotatably connected to the test box through a rotating rod, a mounting plate is fixedly connected to the top of the built-in partition of the test box, a lifting assembly is arranged inside the box body, a moving assembly and a fixed assembly are arranged inside the test box, a test assembly is arranged inside the moving assembly, the lifting assembly can drive the test box to rotate inside the rotating groove through the rotating rod, so that the test box can rotate about the center of the rotating rod, the moving assembly can move the test assembly to the surface of the test body, so that the test body can simulate the actual use scenario, the fixed assembly can fix the test box after rotating to a suitable angle, so as to avoid shaking of the test box during the test, thereby affecting the accuracy of the test.

[0007] Furthermore, a plurality of mounting screw holes for fixing the test body are provided on the top of the mounting plate, a plurality of moving grooves are provided on the inner top of the test box, and a sliding groove is provided on the bottom of the test box.

[0008] Furthermore, the lifting assembly includes a cylinder fixed inside the box, the output end of the cylinder is differentially connected to a telescopic rod, the end of the telescopic rod away from the cylinder is fixedly connected to a first slider, the first slider is slidably connected to the inside of the box through a slide, the top of the first slider is fixedly connected to two support plates, the two support plates are internally rotatably connected to support strips, the sliding groove is internally slidably connected to a second slider, and the end of the support strip away from the two support plates is rotatably connected to the inside of the second slider.

[0009] Furthermore, the moving component includes a driving source fixedly connected to the inside of the test box and two guide rods fixedly connected to the inside of the test box, the output end of the driving source is fixedly connected to a screw, the surface of the screw is threadedly connected to a screw block, the surfaces of the two guide rods are both slidably connected to guide blocks, and the tops of the guide blocks and the screw blocks are fixedly connected to a test box.

[0010] Furthermore, the test adding assembly comprises a first rotating cylinder rotatably connected to the inside of the test adding box, and one end of the first rotating cylinder away from the test adding box is fixedly connected to a driving pulley.

[0011] Furthermore, the test assembly also includes a second rotating cylinder rotatably connected to the inside of the test box, and the second rotating cylinder is fixedly connected to a driven pulley at one end away from the test box, and the driven pulley and the driving pulley are transmitted by a belt, and key slots are provided inside the driven pulley and the driving pulley, and the key slots pass through the first rotating cylinder and the second rotating cylinder.

[0012] Furthermore, the fixing assembly includes a driving bevel gear fixedly connected to the surface of the screw and a rotating rod rotatably connected to the inside of the test box, the surface of the rotating rod is fixedly connected to a driven bevel gear and two half gears, and the driven bevel gear is meshed with the driving bevel gear for transmission.

[0013] Furthermore, the fixing assembly also includes two tooth plates slidably connected to the inside of the test box, the surfaces of the two tooth plates are fixedly connected to limit rods, the end of the limit rod away from the tooth plate is fixedly connected to a fixed disk, the inner wall of the box body is fixedly connected to a fixing ring, and the fixing disk and the fixing ring are extruded and fitted with each other.

[0014] Furthermore, the fixing assembly also includes two fixing cylinders fixedly connected to the inside of the test box, the inner walls of the two fixing cylinders are fixedly connected with springs, the interiors of the two fixing cylinders are slidably connected with extension cylinders, one end of the extension cylinder is fixedly connected to one end of the spring, and the end of the extension cylinder away from the spring is fixedly connected to the end of the tooth plate away from the limiting rod.

[0015] The present invention also provides an inertia testing method for production testing of an AC permanent magnet synchronous servo motor, the motor inertia testing method specifically comprising the following steps:

[0016] Step 1. Fix the AC permanent magnet synchronous servo motor to be tested on the top of the mounting plate with bolts, and then power on the AC permanent magnet synchronous servo motor. After the AC permanent magnet synchronous servo motor is started for a period of time, the power is turned off, and an inertia test is performed on the AC permanent magnet synchronous servo motor through a test component.

[0017] Step 2: When it is necessary to perform inertia test on the AC permanent magnet synchronous servo motor at different angles, start the lifting assembly, and the lifting assembly drives the test box to rotate inside the rotating slot through the rotating rod, so that the AC permanent magnet synchronous servo motor inside the test box is at different angles;

[0018] Step 3: When the test box needs to be fixed, the moving component is started, and the moving component drives the fixing component to start operating, so that the fixing component fixes the test box, thereby preventing the test box from shaking due to the rotation of the AC permanent magnet synchronous servo motor during subsequent tests, thereby affecting the accuracy of the test;

[0019] Step 4. When it is necessary to test the inertia of the AC permanent magnet synchronous servo motor during actual use, start the moving component, and the moving component drives the test component to move to the key block on the surface of the output shaft of the AC permanent magnet synchronous servo motor. The test component starts to operate through the AC permanent magnet synchronous servo motor, and then the inertia test of the AC permanent magnet synchronous servo motor is performed through the test component.

[0020] Compared with the prior art, the present invention provides an inertia test device for production testing of AC permanent magnet synchronous servo motors, which has the following beneficial effects:

[0021] 1. The inertia testing device and method for production testing of AC permanent magnet synchronous servo motors, through the cooperation of the test box and the lifting assembly, start the cylinder, the cylinder drives the first slider to move through the telescopic rod, so that the first slider slides inside the box through the slide plate, and then the first slider drives the support bar to move through the support plate, and the support bar drives the test box to rotate through the second slider, so that the installation angle of the test motor inside the test box is offset, thereby achieving the effect of detecting different angles.

[0022] 2. The inertia testing device and method for production testing of AC permanent magnet synchronous servo motors start the driving source through the coordinated use of a moving component and a fixed component. The driving source drives the active bevel gear to rotate through a screw rod, and the active bevel gear drives the rotating rod to rotate through a driven bevel gear, so that the rotating rod drives the toothed plate to move through a half gear, and then the limit rod drives the fixed plate to move, so that the fixed plate and the fixed ring are squeezed against each other, and then the fixed plate and the fixed ring are rubbed and fixed to each other, thereby achieving the effect of preventing shaking.

[0023] 3. The inertia testing device and method for production testing of AC permanent magnet synchronous servo motors, through the coordinated use of a moving component and a test component, the driving source drives the screw block to move through a screw rod, so that the screw block drives the test box to move, and then the guide block slides on the surface of the guide rod. When the test box moves to the key block on the surface of the test motor drive shaft, the key block and the key slot overlap with each other, and the test motor drives the drive shaft to rotate, so that the drive shaft drives the driven pulley to rotate through the driving pulley and the belt, so that the test motor simulates the actual use environment, thereby achieving the effect of simulating the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall sectional three-dimensional structure of the box body of the present invention;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of the test box of the present invention;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the test box of the present invention from another viewing angle;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the lifting assembly of the present invention;

[0029] Figure 6 This is a schematic diagram of the cross-sectional three-dimensional structure of the test box of the present invention;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the mobile assembly of the present invention;

[0031] Figure 8 This is a schematic diagram of the three-dimensional structure of the test assembly of the present invention;

[0032] Fig. 9 It is a schematic diagram of the structure of the fixing assembly of the present invention;

[0033] Fig.10 It is a schematic diagram of the three-dimensional structure of the tooth plate of the present invention;

[0034] Fig.11 It is a schematic diagram of the cross-sectional three-dimensional structure of the fixing tube of the present invention;

[0035] Fig.12 It is a schematic diagram of a partially cutaway three-dimensional structure of the box body of the present invention.

[0036] In the figure: 1, box; 11, control panel; 12, rotating groove; 13, fixing ring; 2, test box; 21, mounting plate; 211, mounting screw hole; 22, moving groove; 23, test assembly; 24, sliding groove; 25, rotating rod; 3, lifting assembly; 31, cylinder; 311, telescopic rod; 32, first slider; 321, slide plate; 322, support plate; 323, support bar; 33, second slider; 4, moving assembly; 41, driving source; 42, screw; 421, screw Block; 43, guide rod; 431, guide block; 44, test box; 5, test assembly; 51, first rotating cylinder; 511, driving pulley; 512, belt; 513, keyway; 52, second rotating cylinder; 521, driven pulley; 6, fixing assembly; 61, driving bevel gear; 62, rotating rod; 621, driven bevel gear; 622, half gear; 63, tooth plate; 631, limit rod; 632, fixed disk; 64, fixed cylinder; 641, spring; 642, extension cylinder. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] For specific embodiment 1, please refer to Figures 1 to 5The inertia test device for production and testing of AC permanent magnet synchronous servo motors comprises: a box body 1, a test box 2 and a test assembly 23 fixedly mounted on one side of the inner wall of the test box 2, a control panel 11 is fixedly connected to one side of the box body 1, a rotating groove 12 is provided inside the box body 1, the inside of the rotating groove 12 is rotatably connected to the test box 2 through a rotating rod 25, a mounting plate 21 is fixedly connected to the top of the built-in partition of the test box 2, a lifting assembly 3 is arranged inside the box body 1, a moving assembly 4 and a fixed assembly 6 are arranged inside the test box 2, a test assembly 5 is arranged inside the moving assembly 4, the lifting assembly 3 can drive the test box 2 to rotate inside the rotating groove 12 through the rotating rod 25, so that the test box 2 can rotate around the center of the rotating rod 25, the moving assembly 4 can move the test assembly 5 to the surface of the test body, so that the test body can simulate the actual use scenario, and the fixed assembly 6 can rotate the test box 2 After moving to a suitable angle, it is fixed to avoid shaking of the test box 2 during the test, thereby affecting the accuracy of the test. A plurality of mounting screw holes 211 for fixing the test body are provided on the top of the mounting plate 21, a plurality of moving grooves 22 are provided on the inner top of the test box 2, and a sliding groove 24 is provided on the bottom of the test box 2. The lifting assembly 3 includes a cylinder 31 fixed inside the box body 1, and the output end of the cylinder 31 is differentially connected with a telescopic rod 311, and the end of the telescopic rod 311 away from the cylinder 31 is fixedly connected with a first slider 32, and the first slider 32 is slidably connected to the inside of the box body 1 through a slide plate 321. The top of the first slider 32 is fixedly connected with two support plates 322, and the two support plates 322 are internally rotatably connected with a support bar 323, and the sliding groove 24 is internally slidably connected with a second slider 33, and the end of the support bar 323 away from the two support plates 322 is rotatably connected to the inside of the second slider 33;

[0039] It should be noted that the test assembly 23 is composed of electronic components such as a camera, a fill light, and an infrared sensor. The inertia test data of the test motor is collected and recorded through the test assembly 23, and then the test data is uploaded to the inside of the control panel 11. The setting of the sliding slot 24 can make the test box 2 rotate to a lower position, thereby making the test data more accurate. During the test, one end of the output shaft of the test motor is marked, and the marked position is identified by the test assembly 23, so that the test assembly can record the test data faster during the test process;

[0040] When it is necessary to perform an inertia test on the test motor at different angles, the cylinder 31 is started, and the cylinder 31 drives the first slider 32 to move through the telescopic rod 311, so that the first slider 32 slides inside the box body 1 through the slide plate 321, and then the first slider 32 drives the support bar 323 to move through the support plate 322, and the support bar 323 drives the test box 2 to rotate through the second slider 33, so that the installation angle of the test motor inside the test box 2 is offset, and then the test motor is powered on and started, and the test motor is powered off after a period of time after the test motor is started, and the drive shaft of the test motor is tested for inertia through the test component 23, and then the test result is uploaded to the inside of the control panel 11;

[0041] For specific embodiment 2, please refer to Figures 1 to 12 According to the inertia test device for production testing of AC permanent magnet synchronous servo motor provided in the first specific embodiment, this embodiment provides a further technical solution:

[0042] The moving component 4 includes a driving source 41 fixedly connected to the inside of the test box 2 and two guide rods 43 fixedly connected to the inside of the test box 2. The output end of the driving source 41 is fixedly connected to a screw 42, and a screw block 421 is threadedly connected to the surface of the screw 42. The surfaces of the two guide rods 43 are slidably connected to guide blocks 431. The tops of the guide blocks 431 and the screw blocks 421 are fixedly connected to the test box 44. The fixed component 6 includes an active bevel gear 61 fixedly connected to the surface of the screw 42 and a rotating rod 62 rotatably connected to the inside of the test box 2. The surface of the rotating rod 62 is fixedly connected to a driven bevel gear 621 and two half gears 622. The driven bevel gear 621 is meshed with the active bevel gear 61 for transmission. The fixed component 6 also includes Two tooth plates 63 are slidably connected to the inside of the test box 2, and the surfaces of the two tooth plates 63 are fixedly connected to the limit rod 631, and the end of the limit rod 631 away from the tooth plate 63 is fixedly connected to the fixed disk 632, and the inner wall of the box body 1 is fixedly connected to the fixed ring 13, and the fixed disk 632 and the fixed ring 13 are pressed and matched with each other. The fixing assembly 6 also includes two fixed cylinders 64 fixedly connected to the inside of the test box 2, and the inner walls of the two fixed cylinders 64 are fixedly connected to the spring 641, and the interiors of the two fixed cylinders 64 are slidably connected to the extension cylinder 642, one end of the extension cylinder 642 is fixedly connected to one end of the spring 641, and the end of the extension cylinder 642 away from the spring 641 is fixedly connected to the end of the tooth plate 63 away from the limit rod 631;

[0043] It should be noted that the driving source 41 can be a driving motor, which drives the screw rod 42 to rotate through the driving source 41, and during the movement of the tooth plate 63, the tooth plate 63 drives the extension tube 642 to slide inside the fixed tube 64, so that the extension tube 642 drives the spring 641 to move. When the half gear 622 is no longer meshed with the tooth plate 63, the spring 641 is restored to its original state due to not being stretched by the extension tube 642, thereby causing the limiting rod 631 to move out of the limiting hole, thereby preventing the limiting rod 631 from being in the limiting hole all the time when the screw block 421 moves subsequently. The screw block 421 and the guide block 431 are both slidably connected to the inside of the moving groove 22. The surface of the fixed ring 13 is provided with a friction surface, and the fixed disk 632 contacts the friction surface of the fixed ring 13, so that the fixed ring 13 and the fixed disk 632 are fixed to each other. When the half gear 622 is no longer in contact with the tooth plate 63, the contact between the fixed disk 632 and the fixed ring 13 is gradually loosened.

[0044] When the test box 2 needs to be fixed, the driving source 41 is started, and the driving source 41 drives the active bevel gear 61 to rotate through the screw 42, and the active bevel gear 61 drives the rotating rod 62 to rotate through the driven bevel gear 621, so that the rotating rod 62 drives the toothed plate 63 to move through the half gear 622, and then the limiting rod 631 drives the fixed plate 632 to move, so that the fixed plate 632 and the fixed ring 13 are squeezed against each other, and then the fixed plate 632 and the fixed ring 13 are rubbed and fixed to each other, so as to avoid the shaking of the test box 2 caused by the start of the test motor in the subsequent test process, thereby affecting the test result of the test motor;

[0045] For specific embodiment 3, please refer to Figures 1 to 8 According to the inertia test device for production testing of AC permanent magnet synchronous servo motor provided in the second specific embodiment, this embodiment provides a further technical solution:

[0046] The test assembly 5 includes a first rotating cylinder 51 rotatably connected to the inside of the test box 44, and a driving pulley 511 is fixedly connected to one end of the first rotating cylinder 51 away from the test box 44. The test assembly 5 also includes a second rotating cylinder 52 rotatably connected to the inside of the test box 44, and a driven pulley 521 is fixedly connected to one end of the second rotating cylinder 52 away from the test box 44. The driven pulley 521 and the driving pulley 511 are driven by a belt 512. Key grooves 513 are provided inside the driven pulley 521 and the driving pulley 511, and the key grooves 513 penetrate the first rotating cylinder 51 and the second rotating cylinder 52.

[0047] It should be noted that the surface of the second rotating cylinder 52 can be inserted with various test rollers through the key slot 513, thereby making the test result of the inertia test more accurate;

[0048] When it is necessary to simulate the actual working environment for the test motor, the driving source 41 is started, and the driving source 41 drives the screw block 421 to move through the screw rod 42, so that the screw block 421 drives the test box 44 to move, and then the guide block 431 slides on the surface of the guide rod 43. When the test box 44 moves to the key block on the surface of the test motor transmission shaft, the key block and the key slot 513 overlap with each other, and the transmission shaft is driven by the test motor to rotate, so that the transmission shaft drives the driven pulley 521 to rotate through the driving pulley 511 and the belt 512, so that the test motor simulates the actual use environment;

[0049] Specific embodiment 4, the present invention also provides an inertia testing method for production testing of an AC permanent magnet synchronous servo motor, the motor inertia testing method specifically comprising the following steps:

[0050] Step 1, fix the AC permanent magnet synchronous servo motor to be tested on the top of the mounting plate 21 by bolts, then power on the AC permanent magnet synchronous servo motor, power off the AC permanent magnet synchronous servo motor after starting for a period of time, and perform an inertia test on the AC permanent magnet synchronous servo motor through the test component 23;

[0051] Step 2: When it is necessary to perform inertia test on the AC permanent magnet synchronous servo motor at different angles, start the lifting assembly 3, and the lifting assembly 3 drives the test box 2 to rotate inside the rotating groove 12 through the rotating rod 25, so that the AC permanent magnet synchronous servo motor inside the test box 2 is at different angles;

[0052] Step 3, when the test box 2 needs to be fixed, the moving component 4 is started, and the moving component 4 drives the fixing component 6 to start operating, so that the fixing component 6 fixes the test box 2, thereby preventing the test box 2 from shaking due to the rotation of the AC permanent magnet synchronous servo motor during subsequent tests, thereby affecting the accuracy of the test;

[0053] Step 4, when it is necessary to test the inertia of the AC permanent magnet synchronous servo motor during actual use, start the moving component 4, and the moving component 4 drives the test component 5 to move to the key block on the surface of the output shaft of the AC permanent magnet synchronous servo motor. The test component 5 starts to operate through the AC permanent magnet synchronous servo motor, and then the inertia test of the AC permanent magnet synchronous servo motor is performed through the test component 23.

[0054] Working principle: When in use, the test motor is fixed to the top of the mounting plate 21 by bolts and mounting screw holes 211, and the transmission shaft of the test motor passes through the test box 44, and the transmission shaft of the test motor is marked. When it is necessary to perform inertia test on the test motor at different angles, start the cylinder 31, and the cylinder 31 drives the first slider 32 to move through the telescopic rod 311, so that the first slider 32 slides inside the box body 1 through the slide plate 321, and then the first slider 32 drives the support bar 323 to move through the support plate 322, and the support bar 323 drives the test box 2 to rotate through the second slider 33, so that the installation angle of the test motor inside the test box 2 is offset, and then the test motor is powered on and started, and the test motor is powered off after a period of time after the test motor is started, and the inertia test is performed on the transmission shaft of the test motor through the test component 23, and then the test result is uploaded to the inside of the control panel 11. When it is necessary to fix the test box 2, start the driving source 41, and the driving source 41 drives the active bevel gear 61 to rotate through the screw 42 The active bevel gear 61 drives the rotating rod 62 to rotate through the driven bevel gear 621, so that the rotating rod 62 drives the toothed plate 63 to move through the half gear 622, and then the limiting rod 631 drives the fixed plate 632 to move, so that the fixed plate 632 and the fixed ring 13 are squeezed against each other, and then the fixed plate 632 and the fixed ring 13 are rubbed and fixed to each other, so as to avoid the shaking of the test box 2 caused by the start of the test motor in the subsequent test process, thereby affecting the test result of the test motor. When the actual working environment is realized, the driving source 41 is started, and the driving source 41 drives the screw block 421 to move through the screw rod 42, so that the screw block 421 drives the test box 44 to move, and then the guide block 431 slides on the surface of the guide rod 43. When the test box 44 moves to the key block on the surface of the test motor drive shaft, the key block and the key slot 513 overlap with each other, and the drive shaft is driven to rotate by the test motor, so that the drive shaft drives the driven pulley 521 to rotate through the active pulley 511 and the belt 512, so that the test motor simulates the actual use environment.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Inertia test device for production test of AC permanent magnet synchronous servo motor, including: A box body (1), a test box (2), and a test assembly (23) fixedly mounted on one side of an inner wall of the test box (2), characterized in that: a control panel (11) is fixedly connected to one side of the box body (1), a rotation groove (12) is provided inside the box body (1), the inside of the rotation groove (12) is rotationally connected to the test box (2) via a rotating rod (25), a mounting plate (21) is fixedly connected to the top of a built-in partition of the test box (2), a lifting assembly (3) is arranged inside the box body (1), a moving assembly (4) and a fixed assembly (6) are arranged inside the test box (2), and a test assembly (5) is arranged inside the moving assembly (4); The moving assembly (4) comprises a driving source (41) fixedly connected to the inside of the test box (2) and two guide rods (43) fixedly connected to the inside of the test box (2); the output end of the driving source (41) is fixedly connected to a screw rod (42); a screw block (421) is threadedly connected to the surface of the screw rod (42); guide blocks (431) are slidably connected to the surfaces of the two guide rods (43); and a test box (44) is fixedly connected to the top of the guide block (431) and the screw block (421); The fixing assembly (6) comprises a driving bevel gear (61) fixedly connected to the surface of the screw rod (42) and a rotating rod (62) rotatably connected to the inside of the test box (2); a driven bevel gear (621) and two half gears (622) are fixedly connected to the surface of the rotating rod (62); the driven bevel gear (621) and the driving bevel gear (61) are meshed and driven; The fixing assembly (6) further comprises two tooth plates (63) slidably connected to the inside of the test box (2); the surfaces of the two tooth plates (63) are fixedly connected to limit rods (631); one end of the limit rod (631) away from the tooth plates (63) is fixedly connected to a fixing plate (632); the inner wall of the box body (1) is fixedly connected to a fixing ring (13); the fixing plate (632) and the fixing ring (13) are pressed and matched with each other; The fixing assembly (6) further comprises two fixing cylinders (64) fixedly connected to the inside of the test box (2), the inner walls of the two fixing cylinders (64) being fixedly connected to springs (641), the insides of the two fixing cylinders (64) being slidably connected to extension cylinders (642), one end of the extension cylinder (642) being fixedly connected to one end of the spring (641), and one end of the extension cylinder (642) away from the spring (641) being fixedly connected to one end of the toothed plate (63) away from the limiting rod (631); The lifting assembly (3) can drive the test box (2) to rotate inside the rotating groove (12) via the rotating rod (25), thereby enabling the test box (2) to rotate about the center of the rotating rod (25); the moving assembly (4) can enable the test assembly (5) to move to the surface of the test body, thereby enabling the test body to simulate an actual use scenario; the fixing assembly (6) can enable the test box (2) to be fixed after being rotated to a suitable angle, thereby preventing the test box (2) from shaking during the test, thereby affecting the accuracy of the test.

2. The inertia test device for production testing of AC permanent magnet synchronous servo motor according to claim 1, characterized in that: The top of the mounting plate (21) is provided with a plurality of mounting screw holes (211) for fixing the test body, the top of the interior of the test box (2) is provided with a plurality of moving grooves (22), and the bottom of the test box (2) is provided with a sliding groove (24).

3. The inertia test device for production testing of AC permanent magnet synchronous servo motor according to claim 2, characterized in that: The lifting assembly (3) comprises a cylinder (31) fixed inside the box (1); an output end of the cylinder (31) is differentially connected to a telescopic rod (311); one end of the telescopic rod (311) away from the cylinder (31) is fixedly connected to a first slider (32); the first slider (32) is slidably connected to the inside of the box (1) via a slide plate (321); two support plates (322) are fixedly connected to the top of the first slider (32); support bars (323) are rotatably connected inside the two support plates (322); a second slider (33) is slidably connected inside the sliding groove (24); one end of the support bar (323) away from the two support plates (322) is rotatably connected to the inside of the second slider (33).

4. The inertia test device for production testing of AC permanent magnet synchronous servo motor according to claim 1, characterized in that: The test adding assembly (5) comprises a first rotating cylinder (51) rotatably connected to the inside of the test adding box (44); one end of the first rotating cylinder (51) away from the test adding box (44) is fixedly connected to a driving pulley (511).

5. The inertia testing device for production testing of AC permanent magnet synchronous servo motor according to claim 4, characterized in that: The test adding assembly (5) further comprises a second rotating cylinder (52) rotatably connected to the inside of the test adding box (44); a driven pulley (521) is fixedly connected to one end of the second rotating cylinder (52) away from the test adding box (44); the driven pulley (521) and the driving pulley (511) are driven by a belt (512); key grooves (513) are provided inside the driven pulley (521) and the driving pulley (511); and the key grooves (513) penetrate the first rotating cylinder (51) and the second rotating cylinder (52).

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