Micromotor performance testing device

Abstract

The invention discloses a micromotor performance testing device which comprises a divider disc mechanism which comprises a divider disc installed on a rack, a plurality of stations for placing micromotors are evenly arranged on the divider disc in the circumferential direction at intervals, and the divider disc can intermittently and circularly rotate among the stations in sequence according to a preset indexing angle; the testing system comprises testing mechanisms which are sequentially arranged at a plurality of stations and can be used for testing performance parameters and structural appearances of the micromotors placed on the corresponding stations; the discharging system is arranged at a downstream station of the testing system and comprises a material taking mechanism and a discharged material collecting mechanism; the power system comprises a power source connected with the divider disc mechanism, the testing system and the discharging system; and the control system is connected with the power source. Compared with manual testing, the testing efficiency can be greatly improved, in addition, the situations of missed testing and wrong testing are avoided, and the testing reliability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of testing devices, and in particular to a micro-motor performance testing device. Background Art

[0002] In the prior art, the testing of the finished micromotor mainly involves workers using the probes of a comprehensive tester or other testing device to touch the terminal of the micromotor to test its current, speed and other performance. During the test, the workers are required to determine the positive and negative poles of the micromotor terminal, and the workers are required to identify and detect defective products and place them in a defective product box. This method is highly dependent on manual labor, has low test efficiency and unstable test results, and is prone to missed or wrong tests. Summary of the invention

[0003] In order to solve the technical problems existing in the background technology, the present invention provides a micro motor performance testing device.

[0004] The micromotor performance testing device comprises: a divider disc mechanism, comprising a divider disc mounted on a frame, a plurality of tooling jigs for positioning the micromotor being evenly spaced along the circumference of the divider disc, and the divider disc being capable of intermittently cyclically rotating at a preset workstation indexing angle; a testing system, comprising testing mechanisms sequentially arranged at a plurality of workstations for testing the performance parameters and structural appearance of the micromotor placed on the tooling jig; a discharging system, arranged at a downstream workstation of the testing system, comprising a material taking mechanism and a material discharging and collecting mechanism; a power system, comprising a power source connected to the divider disc mechanism, the testing system and the discharging system; and a control system connected to the power source.

[0005] Preferably, the testing system includes a comprehensive performance testing mechanism, which includes a comprehensive tester. The comprehensive tester is connected to a first group of probes, which are vertically connected to a horizontal first clamping plate. The bottom end of the first group of probes is located directly above the micromotor terminal at this workstation. The bottom wall of the first clamping plate is connected to a first cylinder arranged vertically at one end and fixedly mounted on a frame, and the first cylinder is connected to a control system.

[0006] Preferably, the comprehensive tester is also electrically connected to a second set of probes, which are also vertically connected to the first clamping plate, and the bottom ends of the second set of probes are located directly above the riveting points of the micromotor end cover at this station.

[0007] Preferably, the test system includes a missing rivet testing mechanism, which includes a group of first proximity switches, the first proximity switches are connected to the controller, the first proximity switches are connected through a horizontal second clamping plate, the outer wall of the second clamping plate is connected to the first slider, a first column is fixedly connected to the frame, the top wall of the first slider is connected to a second cylinder vertically mounted on the first column, the side wall of the first slider is clamped to the side wall of the first column by a slidable guide rail structure, a third clamping plate horizontally connected to the first slider is arranged below the first proximity switch, a group of metal rods are connected through the third clamping plate so as to be slidable up and down, an elastic member is connected to the middle of the metal rods, the bottom end of the metal rods is located directly above the riveting point of the micromotor end cover, and the top end of the metal rods is located directly below the first proximity opening probe.

[0008] Preferably, the testing system includes an electrical noise testing mechanism, which includes an electrical noise tester, the electrical noise tester is connected to a third group of probes, the third group of probes vertically penetrates and is connected in a horizontal fourth clamping plate, the bottom end of the fourth group of probes is located directly above the micromotor terminal at this workstation, the bottom wall of the fourth clamping plate is connected to a third cylinder arranged in a vertical direction and fixedly mounted on a frame at one end, and the third cylinder and the electrical noise tester are both connected to the control system.

[0009] Preferably, the test system includes a starting current testing mechanism, which includes an oscilloscope. The oscilloscope is electrically connected to a fourth group of probes, which are vertically connected to a horizontal fifth clamping plate. The bottom end of the fourth group of probes is located directly above the micromotor terminal at this workstation. The bottom wall of the fifth clamping plate is connected to a fourth cylinder arranged vertically and fixedly mounted on a frame at one end. The fourth cylinder and the oscilloscope are both connected to the control system.

[0010] Preferably, a micromotor direction adjustment mechanism is arranged at the upstream workstation of the test system, and the micromotor direction adjustment mechanism includes a first clamping cylinder, the top end of the first clamping cylinder is connected to the output shaft of a rotating cylinder with a rotation angle greater than 180 degrees, a second column is connected to the frame, the rotating cylinder is installed on a horizontal sixth clamping plate, the side wall of the sixth clamping plate is connected and fixed with a second slider, the top wall of the second slider is connected to a fifth cylinder arranged in a vertical direction and installed on the top end of the second column, the side wall of the second slider is slidably connected to the side wall of the second column through a guide rail structure, the second column is connected to a second proximity switch and a magnetic pole sensor of the micromotor near this workstation, and the rotating cylinder, the fifth cylinder, the proximity switch, and the magnetic pole sensor are all connected to the control system.

[0011] Preferably, the material picking mechanism includes a second gripper cylinder that can move in the horizontal and vertical directions under the drive of a power source, the power source and the second gripper cylinder are connected to the test system through a control system, and the material collecting mechanism includes a good product unloading trough and a defective product unloading trough, and the entrance of the good product unloading trough and the entrance of the defective product unloading trough are within the moving path range of the second gripper cylinder.

[0012] Preferably, the material taking mechanism comprises a plurality of second gripper cylinders and a plurality of defective product discharge troughs.

[0013] Preferably, a laser inkjet printer is arranged at a downstream station of the test system, and the height and position of the laser inkjet printer's nozzle correspond to the micromotor inkjet position.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The intermittently cyclically rotating divider disc can carry micromotors to be tested in batches. The testing mechanisms set up at several workstations can automatically test the performance of the micromotors under the control of the control system. The discharging system can move the micromotors that have completed the test on the divider disc out of the divider disc and distinguish between good and defective products, so that new micromotors to be tested can be placed on the divider disc continuously, realizing batch automated testing, improving testing efficiency, and at the same time ensuring the reliability of the test to avoid incorrect or missed tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the micromotor performance testing device.

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the divider disk of the micromotor performance testing device.

[0018] Figure 3 This is a schematic diagram of the tooling jig of the micromotor performance testing device and the unfolded three-dimensional structure of the micromotor.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the comprehensive performance testing mechanism of the micro motor performance testing device.

[0020] Figure 5 for Figure 4 Schematic diagram of the enlarged structure in part A.

[0021] Figure 6 It is a structural schematic diagram of the missing rivet testing mechanism of the micro motor performance testing device.

[0022] Figure 7 for Figure 6 Schematic diagram of the enlarged structure in part B.

[0023] Figure 8This is a structural schematic diagram of the micromotor direction adjustment mechanism of the micromotor performance testing device.

[0024] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure in part C.

[0025] Fig.10 This is a structural schematic diagram of the discharge system of the micromotor performance testing device. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Reference Figure 1 , a micro-motor performance testing device, comprising: a divider disc mechanism 1, a testing system 2, a discharging system 3, a power system 4, and a control system. The divider disc mechanism 1 comprises a divider disc 12 mounted on a frame 11, and a plurality of tooling jigs 13 for positioning and placing micro-motors 5 are evenly spaced along the circumference of the divider disc 12. The divider disc 12 can intermittently rotate according to a preset work position indexing angle. Figure 2 In practical applications, a cam divider can be used to achieve reliable and accurate intermittent cyclic rotation; the test system 2 includes test mechanisms that are sequentially arranged at several stations 13 and can test the performance parameters and structural appearance of the micromotor 5 placed on the tooling jig 13; the discharge system 3 is arranged at the downstream station of the test system 2, including a material taking mechanism and a material unloading and collecting mechanism; the power system 4 includes a power source connected to the divider disc mechanism 1, the test system 2, and the discharge system 3 to provide power for the device; the control system connected to the power source can adopt a PLC control system in practical applications, and a control program containing parameters such as the rotation speed and rest time of the divider disc is pre-input into the control system to automatically control the device.

[0028] The working principle of the micromotor performance testing device is as follows: the worker puts the micromotor 5 to be tested into the jig 13 on the divider disc 12 at the starting station. The divider disc 12 will drive the micromotor 5 here to rotate to the station where the test system 2 is located and stay there for a period of time. The test system 5 can test the performance parameters and structural appearance of the micromotor 5 including current, speed, insulation, electrical noise, end cover riveting status, etc., and the control system determines whether it is a good product, and then rotates it to the station where the discharge system 3 is located to unload, completing the automated test of the micromotor.

[0029] Compared with manual testing, it can greatly improve testing efficiency. In addition, it can also avoid missed tests or erroneous tests, thus improving test reliability.

[0030] Reference Figure 3 , Figure 4The test system 2 includes a comprehensive performance testing mechanism 21, which includes a comprehensive tester 211. The comprehensive tester 211 is connected to a first group of probes 212. The first group of probes 212 vertically penetrate and are connected to a horizontal first clamping plate 213. The bottom end of the first group of probes 212 is located directly above the micromotor terminal 51 at this station 13. The bottom wall of the first clamping plate 213 is connected to a first cylinder 41 arranged in a vertical direction and fixedly mounted on the frame 11 at one end. The first cylinder 41 is connected to a control system. When the micromotor 5 rotates to the station where the comprehensive performance testing mechanism 21 is located, the first cylinder 41 contracts, driving the first clamping plate 213 to descend until the bottom end of the first group of probes 212 touches the micromotor terminal 51 to form a conductive circuit. At this time, the comprehensive tester 211 can test the performance parameters of the micromotor 5, such as the current and speed.

[0031] The comprehensive tester 211 is also electrically connected to a second set of probes 214, which are also vertically connected to the first clamping plate 213. The bottom ends of the second set of probes 214 are located directly above the riveting point 52 of the micromotor end cover at this station 13. By designing a suitable circuit, the comprehensive tester can respectively test the insulation resistance between the positive and negative electrodes of the micromotor terminal 51 in contact with the first set of probes 212, and the insulation resistance between one of the positive and negative electrodes of the micromotor terminal 51 and the riveting point 52 of the micromotor end cover in contact with the second set of probes 214, thereby testing whether the insulation performance of the micromotor 5 is qualified.

[0032] Reference Figure 5 , Figure 6 The test system includes a missing rivet test mechanism 22, which includes a group of first proximity switches 221. The first proximity switches 221 are connected to the horizontal second clamping plate 222. The outer wall of the second clamping plate 222 is connected to the first slider 223. The frame 11 is fixedly connected with a first column 224. The top wall of the first slider 223 is connected to the second cylinder 42 vertically installed on the first column 224. The proximity switch 221 is connected to the controller. The first slider 223 The side wall is clamped with the side wall of the first column 224 through a slidable guide rail structure 225. A third clamping plate 226 horizontally connected to the first slider 223 is arranged below the first proximity switch 221. A group of metal rods 227 pass through and are slidably connected to the third clamping plate 226. An elastic part is connected to the middle of the metal rod 227. The bottom end of the metal rod 227 is located directly above the riveting point 52 of the micromotor end cover, and the top end of the metal rod 227 is located directly below the first proximity switch 221.

[0033] When the micromotor 5 on the divider disc 12 is transferred to the station where the missing rivet testing mechanism 22 is located, the second cylinder 42 (in the present embodiment, a cylinder with a floating joint is used) contracts to drive the second clamping plate 222 and the third clamping plate 226 to move downward to a preset height. If the end cover and the housing of the micromotor 5 are not riveted well, the end cover will be a certain distance higher than the end cover of the good micromotor. At this time, the bottom end of the metal rod 227 will be pressed to the riveting point 52 of the micromotor end cover, and the elastic member will rebound under force to bounce the top end of the metal rod 227. The first proximity switch 221 will generate induction and send a signal to the controller, and the control system will judge that the micromotor 5 is a defective product with missing rivets.

[0034] The test system includes an electrical noise testing mechanism 23, which includes an electrical noise tester 231. The electrical noise tester 23 is connected to a third group of probes, which vertically penetrate and are connected in a horizontal fourth clamping plate. The bottom end of the third group of probes is located directly above the micromotor terminal 51 at this workstation. The bottom wall of the fourth clamping plate is connected to a third cylinder arranged in a vertical direction and fixedly mounted on the frame 11 at one end. The third cylinder and the electrical noise tester are both connected to the control system.

[0035] When the micromotor 5 on the divider disc 12 is transferred to the station where the electric noise testing mechanism 23 is located, the third cylinder contracts and drives the fourth clamping plate to move downward, and the third group of probes touch the micromotor terminal 51 to form a conductive circuit. At this time, the electric noise tester 231 can test the electric noise of the micromotor 5, and the control system determines whether the welding of the components in the micromotor 5 meets the standards.

[0036] The test system includes a starting current test mechanism 24, the test system includes a starting current test mechanism 24, the starting current test mechanism 24 includes an oscilloscope, the oscilloscope is electrically connected to a fourth group of probes, the fourth group of probes are vertically penetrated and connected to a horizontal fifth clamping plate, the bottom end of the fourth group of probes is located directly above the micromotor terminal 52 at this work station, the bottom wall of the fifth clamping plate is connected to a fourth cylinder arranged in a vertical direction and fixedly mounted on the frame 11 at one end, the fourth cylinder and the oscilloscope are both connected to the control system, and the waveform shape of the current in the oscilloscope is used to determine whether the motor can be started normally.

[0037] Reference Figure 7 , Figure 8A micromotor direction adjustment mechanism 6 is arranged at the upstream station of the test system, and the micromotor direction adjustment mechanism 6 includes a first clamping cylinder 61, the top end of the first clamping cylinder 61 is connected to the output shaft of a rotating cylinder 43 with a rotation angle greater than 180 degrees, a second column 62 is connected to the frame 11, the rotating cylinder 43 is installed on a horizontal sixth clamping plate 63, and a second slider 64 is connected and fixed to the side wall of the sixth clamping plate 63, the top wall of the second slider 64 is connected to the fifth cylinder 44 arranged in the vertical direction and installed on the top end of the second column 62, the side wall of the second slider 64 is slidably connected to the side wall of the second column 62 through a guide rail structure 65, and a second proximity switch 66 and a magnetic pole sensor 67 of the micromotor 5 near this station 13 are connected to the second column 62, and the rotating cylinder 43, the fifth cylinder 44, the proximity switch 66, and the magnetic pole sensor 67 are all connected to the control system.

[0038] The second proximity switch 66 can detect whether there is a micromotor 5 at the workstation where the micromotor direction adjustment mechanism 6 is located. If a micromotor 5 is detected, the magnetic pole sensor 67 determines whether the placement direction of the micromotor terminal 51 is correct by detecting the north and south poles of the magnetic tiles in the micromotor 5. If it is placed in the opposite direction, the first clamping cylinder 61 clamps the micromotor 5 in the tooling jig 13, and then rises and separates from the tooling jig 13 under the drive of the fifth cylinder 44, and then rotates the micromotor 5 180° under the rotation of the rotating cylinder 43, and replaces the micromotor terminal 51, so as to prepare for the subsequent test system to test the micromotor 5.

[0039] Reference Fig. 9 The material picking mechanism includes a second clamping cylinder 31 that can move in the horizontal and vertical directions under the drive of a power source 45. The power source 45 and the second clamping cylinder 31 are connected to the test system 2 through a control system. The material collecting mechanism includes a good product unloading trough and a defective product unloading trough 32. The good product unloading trough entrance 331 and the defective product unloading trough entrance 321 are within the moving path range of the second clamping cylinder 31.

[0040] In this embodiment, an operating platform 34 is provided at a height approximately level with the divider disc, a plurality of vertical support rods 35 are slidably connected to the operating platform 34, a horizontal platform 36 is connected to the top of the support rods 35, a lifting plate 38 is connected to the bottom of the support rods 35, a sixth cylinder 45a arranged vertically is connected between the top surface of the lifting plate 38 and the bottom surface of the operating platform 34, a seventh cylinder 45b arranged horizontally is installed on the horizontal platform 36, a side cylinder wall of the seventh cylinder 45b is connected to the top wall of the third slider 37, and a side wall of the third slider 37 and a side wall of the horizontal platform 36 are connected by a guide rail. The structure is slidably connected, and the other side wall of the third slider 37 is connected to the cylinder wall of the second clamping jaw cylinder 31. A defective product unloading trough 32 is arranged below the second clamping jaw cylinder 31, and the defective product unloading trough 32 is connected to the operating platform 34 through a ramp slide. The seventh pushing cylinder 46 is horizontally arranged and aligned with the defective product unloading trough entrance 321 on the operating platform 34. The defective product micromotor 5 placed on the second clamping jaw 31 on the operating platform 34 is pushed into the defective product unloading trough 32, and a ramp slide and a good product unloading trough extending downward from the operating platform 34 are arranged in the direction of horizontal movement of the second clamping jaw 31.

[0041] When a testing mechanism tests that the micromotor 5 at its workstation is defective, the testing mechanism at the subsequent workstation will no longer test it, but will directly transfer it to the workstation where the discharge system 3 is located to unload it into the defective product trough. If the micromotor 5 passes the tests of all the testing mechanisms, when it transfers to the workstation where the discharge system 3 is located, it will be transported to the entrance 331 of the good product unloading trough by the second clamping cylinder 31 and then slide into the good product unloading trough.

[0042] In order to collect the micromotors 5 with different defects separately so as to carry out targeted repair work later, the material taking mechanism includes a plurality of second clamping claw cylinders 31 and a plurality of defective product discharge troughs 32 .

[0043] A laser inkjet printer 7 is set at the downstream workstation of the test system. The height and position of the laser inkjet printer's nozzle 71 correspond to the micromotor's inkjet coding position. For the qualified micromotor 5 that meets the performance test of the test system, when it is transferred to the workstation where the laser inkjet printer 7 is located, the model, production date and other information are etched on its outer shell through the nozzle 71.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A micromotor performance testing device, characterized in that: include: The divider disc mechanism (1) comprises a divider disc (12) mounted on a frame (11), a plurality of tooling jigs (13) capable of positioning and placing micromotors (5) are evenly spaced on the divider disc (12) along the circumference, and the divider disc (12) can intermittently cyclically rotate according to a preset work position indexing angle; The testing system (2) comprises testing mechanisms sequentially arranged at a plurality of workstations (13) and capable of testing the performance parameters and structural appearance of the micro motor (5) placed on the tooling jig (13); A material discharging system (3), arranged at a downstream station of the testing system (2), comprises a material taking mechanism and a material discharging and collecting mechanism; A power system (4) comprising a power source connected to the divider disc mechanism (1), the test system (2), and the discharge system (3); A control system connected to a power source.

2. The micromotor performance testing device according to claim 1, characterized in that: The test system (2) comprises a comprehensive performance test mechanism (21), the comprehensive performance test mechanism (21) comprises a comprehensive tester (211), the comprehensive tester (211) is electrically connected to a first group of probes (212), the first group of probes (212) vertically penetrate and are connected to a horizontal first clamping plate (213), the bottom ends of the first group of probes (212) are located directly above the micromotor terminal (51) at the workstation (13), the bottom wall of the first clamping plate (213) is connected to a first cylinder (41) arranged in a vertical direction and one end of which is fixedly mounted on a frame (11), and the first cylinder (41) is connected to a control system.

3. The micromotor performance testing device according to claim 2, characterized in that: The comprehensive tester (211) is also electrically connected to a second set of probes (214), which are also vertically connected to the first clamping plate (213). The bottom ends of the second set of probes (214) are located directly above the riveting point (52) of the micromotor end cover at this station (13).

4. The micromotor performance testing device according to claim 1, characterized in that: The test system comprises a missing rivet test mechanism (22), the missing rivet test mechanism (22) comprising a group of first proximity switches (221), the first proximity switches (221) being connected to a controller, the first proximity switches (221) being connected through a horizontal second clamping plate (222), the outer side wall of the second clamping plate (222) being connected to a first slider (223), a first column (224) being fixedly connected to a frame (11), a top wall of the first slider (223) being connected to a second cylinder (42) vertically mounted on the first column (224), and a side wall of the first slider (223) being connected to a second cylinder (42) vertically mounted on the first column (224). The wall is clamped with the side wall of the first column (224) through a slidable guide rail structure (225); a third clamping plate (226) horizontally connected to the first slider (223) is arranged below the first proximity switch (221); a group of metal rods (227) penetrate and are connected to the third clamping plate (226) in a manner that they can slide up and down; an elastic member (228) is connected to the middle of the metal rods (227); the bottom end of the metal rods (227) is located directly above the riveting point (52) of the micromotor end cover; and the top end of the metal rods (227) is located directly below the probe of the first proximity switch (221).

5. The micromotor performance testing device according to claim 1, characterized in that: The test system comprises an electric noise test mechanism (23), the electric noise test mechanism (23) comprises an electric noise tester (231), the electric noise tester (23) is connected to a third group of probes, the third group of probes vertically penetrates and is connected in a horizontal fourth clamping plate, the bottom end of the fourth group of probes is located directly above the micromotor terminal (52) at this work station, the bottom wall of the fourth clamping plate is connected to a third cylinder arranged in a vertical direction and one end of which is fixedly mounted on a frame (11), and the third cylinder and the electric noise tester are both connected to a control system.

6. The micromotor performance testing device according to claim 1, characterized in that: The test system comprises a starting current test mechanism (24), the starting current test mechanism (24) comprises an oscilloscope, the oscilloscope is electrically connected to a fourth group of probes, the fourth group of probes are vertically penetrated and connected to a horizontal fifth clamping plate, the bottom end of the fourth group of probes is located directly above the micromotor terminal (52) at this station, the bottom wall of the fifth clamping plate is connected to a fourth cylinder arranged in a vertical direction and one end of which is fixedly mounted on a frame (11), and the fourth cylinder and the oscilloscope are both connected to a control system.

7. The micro-motor performance testing device according to claim 1, characterized in that: A micromotor direction adjustment mechanism (6) is arranged at an upstream station of the test system. The micromotor direction adjustment mechanism (6) comprises a first clamping cylinder (61). The top end of the first clamping cylinder (61) is connected to the output shaft of a rotating cylinder (43) with a rotation angle greater than 180 degrees. A second column (62) is connected to the frame (11). The rotating cylinder (43) is mounted on a horizontal sixth clamping plate (63). A second slider (64) is fixedly connected to the side wall of the sixth clamping plate (63). The top wall of the second slider (64) is connected to the The fifth cylinder (44) installed on the top of the second column (62) and arranged in the vertical direction is connected, the side wall of the second slider (64) is slidably connected to the side wall of the second column (62) through a guide rail structure (65), the second column (62) is connected with a second proximity switch (66) and a magnetic pole sensor (67) of a micro motor (5) near this work station (13), and the rotating cylinder (43), the fifth cylinder (44), the second proximity switch (66), and the magnetic pole sensor (67) are all connected to the control system.

8. The micro-motor performance testing device according to claim 1, characterized in that: The material picking mechanism includes a second clamping cylinder (31) that can move in the horizontal and vertical directions under the drive of a power source (45). The power source (45) and the second clamping cylinder (31) are connected to the test system (2) through a control system. The material collecting mechanism includes a good product discharge trough and a bad product discharge trough (32). The good product discharge trough entrance (331) and the bad product discharge trough entrance (321) are within the moving path range of the second clamping cylinder (31).

9. The micro-motor performance testing device according to claim 7, characterized in that: The material taking mechanism comprises a plurality of second clamping claw cylinders (31) and a plurality of defective product discharge troughs (32).

10. The micro-motor performance testing device according to claim 1, characterized in that: A laser inkjet printer (7) is arranged at a downstream station of the test system, and the height and position of the inkjet head (71) of the laser inkjet printer correspond to the inkjet position of the micromotor (5).

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