A mounting test device for linear motor and a detection method thereof

Abstract

The application discloses a kind of installation test equipment and its detection method for linear motor, applied to linear motor field, including pedestal, the upper portion of the pedestal is equipped with guide rail, the rear of the guide rail is provided with motor and screw rod, the shaft of the screw rod is threadedly connected with test assembly, the test assembly includes mechanical arm, the output end of the mechanical arm is equipped with booster, the two sides of the mechanical arm are symmetrically equipped with fixed plate on body, the fixed plate is arranged above the mover, two groups of fixed plate are symmetrically equipped with support block, the lower portion of the support block is equipped with telescopic rod, the output end of the telescopic rod is equipped with stop block, the side of the stop block towards mover is paved with piezoelectric module, the same outer side of the guide rail is equipped with two groups of light sensor, the side of the mover close to the light sensor is equipped with light shield, the application has the characteristics of distinguishing the fault category of linear motor.

Description

Technical Field

[0001] This invention relates to the field of linear motor technology, specifically to an installation and testing device and a testing method for linear motors. Background Technology

[0002] A linear motor is a device that directly converts electrical energy into linear motion mechanical energy without any intermediate transmission mechanism. It far surpasses traditional rotary motor systems in terms of precision, speed, response, and reliability, and is gradually being used in a wider range of industrial and civilian applications.

[0003] In permanent magnet synchronous linear motors, a permanent magnet array is laid on the stator side. When the armature winding in the mover is energized, a magnetic field is generated that translates in a straight line. The magnetic field of the mover interacts with the magnetic field of the permanent magnet, generating an electromagnetic thrust on the mover. The electromagnetic thrust drives the mover to move along the guide rail. Under current technology, the testing equipment for linear motors can accurately detect the relevant parameters of the motor, but it is difficult to distinguish between electrical system problems and mechanical system problems. More specialized third-party equipment is required for further testing, which seriously affects the testing efficiency of linear motors and greatly increases the testing cost.

[0004] Therefore, how to efficiently distinguish the types of faults in linear motors is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide an installation and testing device and a testing method for linear motors to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a linear motor installation and testing device, comprising a base and an analysis module. A protective seat is installed at one upper end of the base, and a guide rail is installed above the base. The guide rail is U-shaped, and a stator is installed inside the guide rail. A drag chain is arranged in front of the guide rail, and a portion of the drag chain is fixedly connected to the base. A mover is slidably connected above the guide rail. A motor and a lead screw are arranged behind the guide rail. A testing component is threaded onto the shaft of the lead screw. The testing component includes a robotic arm, and a second drag chain is installed behind the robotic arm. A portion of the second drag chain is fixedly connected to the base. The motor is mounted above the base, and its output shaft is fixedly connected to the lead screw. Both ends of the lead screw are connected to the bearing seats of the base. A torque sensor is mounted on the shaft of the lead screw. A booster is mounted on the output end of the robotic arm. Fixed plates are symmetrically mounted on both sides of the robotic arm. The fixed plates are positioned above the mover. Support blocks are symmetrically mounted on the two sets of fixed plates. A telescopic rod is mounted below the support blocks. A stop block is mounted on the output end of the telescopic rod. A piezoelectric module is laid on the side of the stop block facing the mover. Two sets of light sensors are mounted on the same outer side of the guide rail. A light-blocking plate is mounted on the side of the mover closest to the light sensors.

[0007] A testing method for a linear motor mounting and testing device, using the aforementioned mounting and testing device for a linear motor, includes the following method:

[0008] S1: Turn off power supply one and turn on power supply two, so that the test component pushes the mover to move along the guide rail, and uses the optical sensor and the torque sensor to collect relevant data of the mover's mechanical system;

[0009] S2: Turn off power supply 2 and turn on power supply 1, so that the mover moves along the guide rail under the action of magnetic force, and collect relevant data of the mover's electrical system using the optical sensor and related electrical detection equipment;

[0010] S3: Turn on power supply one and power supply two, and perform load test and stall test on the mover under magnetic drive through the test component, and collect data using the optical sensor, torque sensor and related electrical testing equipment;

[0011] S4: Analyze the data in S1, S2 and S3, distinguish between electrical system problems and mechanical system problems, and repair or optimize the system problems.

[0012] A testing method for a linear motor using an installation testing device, wherein step S1 includes the following method:

[0013] S1.1: Power supply one is turned off, power supply two is turned on, the test component is powered on, and the test component uses the stop block to drive the mover to move along the guide rail;

[0014] The space between the two sets of optical sensor receiving units is defined as the test space, and the reciprocating motion of the mover in the test space is defined as one test cycle.

[0015] The test component is then used to drive the motion of the mover for multiple test cycles to reduce data errors and transmit the data to the analysis module.

[0016] A testing method for a linear motor using an installation testing device, wherein step S2 includes the following method:

[0017] S2.1: Power supply 2 is turned off, power supply 1 is turned on, the test component is de-energized, the stop block releases the limit of the mover, the electrical system of the mover is energized, the magnetic force drives the mover to move along the guide rail, the electrical testing equipment collects the relevant electrical performance data of the mover during the test cycle, and transmits the electrical performance data to the analysis module.

[0018] A testing method for a linear motor using an installation testing device, wherein step S3 includes the following method:

[0019] S3.1: Turn on power supply one and power supply two, keep the motor in the off state, limit the movement of the mover with the stop block, and drive the mover to move with magnetic force to perform a stall test on the mover.

[0020] A testing method for a linear motor using an installation testing device, wherein step S3 includes the following method:

[0021] S3.2: Turn on power supply one and power supply two, start the motor, release the limit of the mover by the stop block, start the booster, the booster applies a load to the mover, so that the mover moves under the action of magnetic force, and perform a load test on the mover.

[0022] A testing method for a linear motor using an installation testing device, wherein step S4 includes the following method:

[0023] S4.1: Using the data measured in S1 and S2, analyze the abrupt changes in the resistance experienced by the mover to identify and repair mechanical and magnetic resistance problems;

[0024] S4.2: Analyze whether the permanent magnet and electrical system are qualified based on the stall test data in S3.1, and verify the analysis results of S4.1 in reverse.

[0025] S4.3: Continuously monitor and analyze the moving part and electrical system using an infrared thermal imager to provide effective reference data for optimizing the installation layout of the electrical system, improving the heat dissipation structure, and troubleshooting poor contact.

[0026] A testing method for a linear motor using an installation testing device, wherein step S4.1 includes the following method:

[0027] S4.1: The resistance encountered by the moving part when it moves is accurately calculated using the torque data collected in S1. The position of the sudden change in resistance on the guide rail is calculated based on the time point of the resistance change, which is convenient for the staff to check. The magnetic resistance is obtained by subtracting the mechanical resistance from the electromagnetic thrust in S2. By analyzing the changing trend of the magnetic resistance during the test cycle, the installation position of the permanent magnet and armature core is optimized, effectively reducing the influence of magnetic resistance.

[0028] A testing method for a linear motor using an installation testing device, wherein step S4.2 includes the following method:

[0029] S4.2: The maximum electromagnetic thrust and rated electromagnetic thrust of the linear motor are obtained by using test components. By comparing them with the theoretical values, it is determined whether the permanent magnet and electrical system are qualified.

[0030] Subtract the mechanical resistance obtained in S1 from the maximum electromagnetic thrust and the rated electromagnetic thrust respectively to obtain two sets of magnetic resistance data and corresponding trends. This allows for a more precise identification of the abnormal changes in magnetic resistance and also verifies the analysis results in S4.1.

[0031] A testing method for a linear motor using an installation testing device, wherein step S4.3 includes the following method:

[0032] S4.2: Both S3.1 and S3.2 tests will cause the heat generated by the electrical system to accumulate continuously. The moving part and electrical system are continuously detected by an infrared thermal imager, which provides effective reference data for optimizing the installation layout of the electrical system, improving the heat dissipation structure and troubleshooting poor contact.

[0033] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention, by setting up a detection component, realizes the mechanical movement and electrical movement of the linear motor, and distinguishes the electrical system problems and mechanical system problems of the linear motor through different movement methods. Attached Figure Description

[0034] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0035] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 This is a schematic diagram of the installation of the detection component of the present invention;

[0037] Figure 3 This is a rear view schematic diagram of the detection component of the present invention;

[0038] Figure 4 This is the present invention. Figure 3 Schematic diagram of area A;

[0039] Figure 5 This is the present invention. Figure 3 Schematic diagram of area B;

[0040] Figure 6 This is a schematic diagram of the detection component structure of the present invention;

[0041] Figure 7 This is a schematic diagram of the installation of the light-blocking plate of the present invention;

[0042] In the diagram: 1. Base; 2. Protective base; 3. Guide rail; 4. Cable chain one; 5. Cable chain two; 6. Mover; 7. Robotic arm; 8. Motor; 9. Lead screw; 10. Intensifier; 11. Fixing plate; 12. Support block; 13. Telescopic rod; 14. Stop block; 15. Light sensor; 16. Light blocking plate. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Please see Figures 1-7 The present invention provides a technical solution: an installation and testing device for a linear motor, comprising a base 1 and an analysis module. The analysis module is used to receive and analyze test data. A protective seat 2 is installed at one upper end of the base 1, and an infrared thermal imager (not shown in the figure) is installed at the bottom end of the protective seat 2. The observation direction of the infrared thermal imager is downward. A guide rail 3 is installed above the base 1. The guide rail 3 is U-shaped. A stator is installed inside the guide rail 3. A drag chain 4 is set in front of the guide rail 3. Part of the structure of the drag chain 4 is fixedly connected to the base 1. A mover 6 is slidably connected above the guide rail 3. Several circuits are integrated inside the drag chain 4 to connect the electrical system of the mover 6 to a power supply and an electrical testing device. The electrical system includes windings and an armature core.

[0045] A motor 8 and a lead screw 9 are located behind the guide rail 3. The axis of the lead screw 9 is in the same direction as the axial direction of the guide rail 3. A test assembly, including a robotic arm 7, is threaded onto the shaft of the lead screw 9. A cable chain 5 is mounted behind the robotic arm 7. Part of the cable chain 5 is fixedly connected to the base 1. The motor 8 is mounted above the base 1, and its output shaft is fixedly connected to the lead screw 9. Both ends of the lead screw 9 are connected to bearings in the bearing seats of the base 1. A torque sensor (not shown in the figure) is mounted on the shaft of the lead screw 9. The output end of the robotic arm 7 is... The robot arm 7 is equipped with a booster 10 and has fixed plates 11 symmetrically installed on both sides of its body. The fixed plates 11 are positioned above the mover 6. Support blocks 12 are symmetrically installed on the two sets of fixed plates 11. A telescopic rod 13 is installed below the support blocks 12. A stop block 14 is installed at the output end of the telescopic rod 13. A piezoelectric module (not shown in the figure) is laid on the side of the stop block 14 facing the mover 6. The piezoelectric module is used to detect the magnitude of the thrust applied to the mover 6 by the magnetic field. Several circuits are integrated inside the drag chain 2 5 to connect the test components to the power supply 2.

[0046] Two sets of light sensors 15 are installed on the same outer side of the guide rail 3, and a light-blocking plate 16 is installed on the side of the mover 6 near the light sensor 15.

[0047] A testing method for linear motors using mounting and testing equipment includes the following steps:

[0048] S1: Turn off power supply one and turn on power supply two to make the test component push the mover 6 to move along the guide rail 3, and use the light sensor 15 and torque sensor to collect relevant data of the mechanical system of the mover 6.

[0049] S2: Turn off power supply 2 and turn on power supply 1, so that the mover 6 moves along the guide rail 3 under the action of magnetic force, and collect relevant data of the electrical system of the mover 6 using the optical sensor 15 and related electrical detection equipment.

[0050] S3: Turn on power supply one and power supply two, and perform load test and stall test on the mover 6 under magnetic drive through the test components, and collect data using optical sensor 15, torque sensor and related electrical testing equipment.

[0051] S4: Analyze the data in S1, S2 and S3, distinguish between electrical system problems and mechanical system problems, and repair or optimize the system problems.

[0052] A testing method for a linear motor using an installation testing device, wherein step S1 includes the following method:

[0053] S1.1: Power off power supply one, power on power supply two, test components are powered on, robotic arm 7 moves the booster 10 above the mover 6, activates each set of telescopic rods 13, the output end of the telescopic rods 13 extends outward, driving the stop blocks 14 downward, at this time the two symmetrically installed sets of stop blocks 14 limit the movement of the mover 6 on both sides (e.g. Figure 4 As shown), start motor 8, motor 8 drives lead screw 9 to rotate, lead screw 9 drives robotic arm 7 to move along the axis of lead screw 9. The moving principle is existing technology and will not be described in detail here.

[0054] The robotic arm 7 drives the fixed plate 11 to move synchronously, the fixed plate 11 drives the support block 12 to move synchronously, and the support block 12 drives the stop block 14 to move synchronously, so that the stop block 14 pushes the mover 6 to move along the guide rail 3.

[0055] The moving element 6 drives the light-blocking plate 16 to move. During the movement, the light-blocking plate 16 passes through two sets of light sensors 15 and blocks the receiving unit of the light sensors 15. When the light sensor 15 detects that the light is blocked, it means that the moving element 6 has passed the light sensor 15. When the moving element 6 passes the light sensor 15, the light sensor 15 sends a signal to the analysis module. The analysis module calculates the speed at which the test component pushes the moving element 6 based on the distance between the two sets of light sensors 15 and the reception time of the two sets of signals.

[0056] The space between the two sets of optical sensor 15 receiving units is defined as the test space, and the reciprocating motion of the mover 6 in the test space is defined as one test cycle.

[0057] The test components are further used to drive the actuator 6 to move for multiple test cycles. The torque sensor records the torque fluctuation data of the lead screw 9 within multiple test cycles, reducing the error of the torque fluctuation data, and transmitting the torque data to the analysis module.

[0058] A testing method for a linear motor using an installation testing device, wherein step S2 includes the following method:

[0059] S2.1: Power supply 2 is turned off, power supply 1 is turned on, the test component is de-energized, the stop 14 releases the limit of the mover 6, the electrical system of the mover 6 is energized, the driving principle of the linear motor is existing technology and will not be described in detail here, the magnetic force drives the mover 6 to move along the guide rail 3, the electrical testing equipment collects the relevant electrical performance data of the mover 6 during the test cycle and transmits the electrical performance data to the analysis module, the principle of speed detection is the same as the speed measurement principle in S1.

[0060] A testing method for a linear motor using an installation testing device, wherein step S3 includes the following method:

[0061] S3.1: Turn on power supply one and power supply two, keep motor 8 off, stop block 14 limits the movement of mover 6, magnetic force drives mover 6 to move, and perform stall test on mover 6. The limiting principle of stop block 14 is the same as the principle in S1.1.

[0062] S3.2: Turn on power supply one and power supply two, start motor 8, release the limit of mover 6 by stop block 14, start booster 10, the output end of booster 10 moves downward, booster 10 applies load to mover 6, magnetic force drives mover 6 to move, motor 8 and lead screw 9 drive test assembly to move, so that mover 6 moves under load under the action of magnetic force, and load test is performed on mover 6. By changing the output stroke of booster 10, the load size of mover 6 is changed;

[0063] The electrical testing equipment collects relevant electrical performance data of the rotor during stall tests and load tests, and transmits the electrical performance data to the analysis module.

[0064] It should be noted that cable chains 4 and 5 protect the integrated wiring during high-speed and high-frequency reciprocating motion. The protection principle of the cable chains is existing technology and will not be elaborated here.

[0065] A testing method for a linear motor using an installation testing device, wherein step S4 includes the following method:

[0066] S4.1: Analyze the detection data in S1 and S2 comprehensively, and distinguish between electrical system problems and mechanical system problems based on the differences in the results;

[0067] Since the transmission ratio of lead screw 9 is an inherent property of lead screw 9, the resistance encountered by the mover 6 when moving can be accurately calculated using the torque data collected in S1. The product of the transmission ratio of lead screw 9 and the torque value at a specific time point is the resistance. Ideally, the resistance within a test cycle should fluctuate within the allowable error range. If a sudden change in local resistance is detected and the electrical system is in a power-off state, it indicates that there is a problem with the relevant mechanical system of the linear motor. The staff will investigate the possible faults. Since the mover reciprocates through the test space within a test cycle, the one-way motion time of the mover 6 is T, and the motion time of a test cycle is 2T. T is divided into n time points t, where ti represents the i-th time point, and i takes any integer between 1 and n. Mechanical system problems include the following:

[0068] Scenario 1: Within a time period greater than T, the resistance exceeds the allowable error range;

[0069] Case 2: When i is equal, the time points of the sudden change in resistance are ti and 2T-ti, indicating that the resistance experienced by the mover 6 is within the same range during the round trip.

[0070] Case 3: Based on Case 2, when i is not equal, it means that the resistance experienced by the mover 6 is at different positions during the round trip.

[0071] Since the moving speed of the mover 6 has been measured in S1, the location of the sudden change in resistance can be obtained by simple calculation. In the above situations 1, 2 and 3, the sudden change in resistance may be caused by the processing or installation error of the guide rail 3 and the mover 6. Furthermore, in situations 2 and 3, the sudden change in resistance may be caused by dust particles in the air adhering to the surface of the guide rail 3. The staff will investigate and repair the relevant problems.

[0072] In a linear motor, the magnetic field generated by the permanent magnet interacts with the toothed structure of the armature core to produce magnetic resistance. Therefore, the resistance to the movement of the mover 6 includes mechanical resistance and magnetic resistance. Since the mechanical resistance changes very little and the magnetic resistance is strongly periodic, the fluctuation of magnetic resistance is eliminated by multiple tests in S1, and then the mechanical resistance is obtained.

[0073] Furthermore, power supply one is turned on and power supply two is turned off. By controlling the current supplied by power supply one, the magnitude of the electromagnetic thrust generated by the magnetic field is controlled. The magnetic resistance is obtained by subtracting the mechanical resistance from the electromagnetic thrust. By analyzing the trend of magnetic resistance change during the test cycle, the installation position of the permanent magnet and armature core can be optimized, effectively reducing the influence of magnetic resistance.

[0074] By observing the changing trend of magnetic resistance, the specific location of the magnetic resistance change can be determined. When the mover 6 is about to reach the position where the magnetic resistance changes, the current supplied by the power source is appropriately increased to increase the electromagnetic thrust, thereby compensating for the error of the magnetic resistance.

[0075] Furthermore, under no-load conditions, electrical testing equipment can be used to test the electrical system of the mover 6, including the load current, voltage, and power of the electrical system. By comparing the actual values ​​with the theoretical values, it can be determined whether there is a fault in the electrical system.

[0076] S4.2: Before the stall test, control the rotor 6 to perform a short-range reciprocating motion to eliminate the influence of static friction. Further utilize the test component to restrict the movement of the rotor 6, continuously increase the current, so that the electromagnetic thrust continuously increases. The rotor 6 will move due to the electromagnetic thrust. Since the test component restricts the movement of the rotor 6, the piezoelectric module directly detects the magnitude of the electromagnetic thrust. When the current continues to increase, but the magnitude of the electromagnetic thrust remains unchanged, the detection value of the piezoelectric module is the maximum electromagnetic thrust. Further, the rated current is used to detect the magnitude of the electromagnetic thrust. The maximum electromagnetic thrust and the rated electromagnetic thrust are compared with the theoretical maximum electromagnetic thrust and the theoretical rated electromagnetic thrust, respectively. This can determine whether the permanent magnet and electrical system are qualified. If the actual maximum thrust and rated thrust exceed the theoretical allowable error range, it indicates that the setting of the permanent magnet or electrical system is unreasonable. The relevant equipment should be replaced or the installation process should be optimized.

[0077] Based on the maximum electromagnetic thrust and rated electromagnetic thrust obtained from the stall test, respectively, by subtracting the mechanical resistance measured in S4.1, two sets of magnetic drag data and their corresponding trends can be obtained. Since the two sets of thrust are different, the specific values ​​of the two sets of magnetic drag are different, but the trend of magnetic drag change should be consistent. By cross-validating with the trend of magnetic drag change measured in S4.1, on the one hand, the abnormal change location of magnetic drag can be further accurately located, and on the other hand, the magnetic drag separation results and the determination of the magnetic drag change location in S4.1 can be reverse-validated, which significantly improves the accuracy of the test results.

[0078] S4.3: Current is the core carrier for the conversion of electromagnetic energy and mechanical energy in a motor. The current characteristics under load conditions directly reflect the design rationality, winding health status and drive control accuracy of the linear motor.

[0079] In a linear motor, the electromagnetic thrust must overcome mechanical resistance, magnetic resistance, and external load. The magnitude of the electromagnetic thrust is proportional to the current. Therefore, the analysis module monitors the changing trends of current and external load and plots the relationship curve between current and load. If the curve is continuous and smooth, it indicates that the electrical system is working normally, the magnetic circuit is not saturated, and the winding is fault-free. If the curve shows an inflection point, it may be due to magnetic circuit saturation caused by increased load, or a local short circuit in the winding.

[0080] Furthermore, in the stall test of S3.1, the test component restricts the movement of the rotor 6. In order to continuously increase the electromagnetic thrust, the drive current is continuously increased, which leads to the continuous increase and accumulation of heat generated by the electrical system. This causes the winding resistance to increase with the temperature, resulting in a difference between the actual electromagnetic thrust and the theoretical thrust.

[0081] In the load test of S3.2, the external load will increase the total resistance that the electromagnetic thrust needs to overcome. In order to ensure the moving efficiency of the mover 6, the output current will be continuously increased, which will eventually lead to the continuous accumulation of heat generated by the electrical system.

[0082] In response to the above situation, an infrared thermal imager can be used to continuously monitor the actuator 6 and the electrical system, generating accurate temperature distribution maps and temperature difference comparison maps. The maps can intuitively locate areas of concentrated heat, providing effective reference data for optimizing the installation layout of the electrical system, improving the heat dissipation structure, and troubleshooting poor contacts.

[0083] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0084] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mounting test device for linear motors, comprising a base (1) and an analysis module, characterized in that: The upper end of the base (1) is provided with a protection seat (2), the upper end of the base (1) is provided with a guide rail (3), the guide rail (3) is concave in shape, the inside of the guide rail (3) is provided with a stator, the front of the guide rail (3) is provided with a drag chain (4), part of the structure of the drag chain (4) is fixedly connected with the base (1), the upper end of the guide rail (3) is slidably connected with a rotor (6), the rear of the guide rail (3) is provided with a motor (8) and a lead screw (9), the shaft of the lead screw (9) is threadedly connected with a test assembly, the test assembly comprises a mechanical arm (7), the rear of the mechanical arm (7) is provided with a drag chain (5), part of the structure of the drag chain (5) is fixedly connected with the base (1), the motor (8) is installed on the upper end of the base (1), the output shaft of the motor (8) is fixedly connected with the lead screw (9), the both ends of the lead screw (9) are bearing connected with the bearing seat of the base (1), the shaft of the lead screw (9) is provided with a torque sensor, the output end of the mechanical arm (7) is provided with a supercharger (10), the both sides of the mechanical arm (7) are symmetrically provided with a fixed plate (11), the fixed plate (11) is arranged above the rotor (6), two groups of the fixed plate (11) are symmetrically provided with a supporting block (12), the lower end of the supporting block (12) is provided with a telescopic rod (13), the output end of the telescopic rod (13) is provided with a stop block (14), the side of the stop block (14) facing the rotor (6) is paved with a piezoelectric module, the same side of the guide rail (3) is provided with two groups of light sensors (15), the side of the rotor (6) close to the light sensor (15) is provided with a light barrier (16); When the installation test device is used, the following steps are included: S1: turn off power supply one, turn on power supply two, make the test assembly push the rotor (6) to move along the guide rail (3), use the light sensor (15) and the torque sensor to collect the related data of the mechanical system of the rotor (6); S2: turn off power supply two, turn on power supply one, make the rotor (6) move along the guide rail (3) under the action of magnetic force, use the light sensor (15) and the related electrical detection equipment to collect the related data of the electrical system of the rotor (6); S3: turn on power supply one and power supply two, make the test assembly perform load test and locked-rotor test on the rotor (6) under the magnetic force driving, and use the light sensor (15), the torque sensor and the related electrical detection equipment to collect data; S4: analyze the data in S1, S2 and S3, distinguish the electrical system problems and the mechanical system problems, and repair or optimize the system problems; S3.1: turn on power supply one and power supply two, the motor (8) remains in the closed state, the stop block (14) limits the rotor (6), the rotor (6) is driven to move by magnetic force, and the rotor (6) is subjected to locked-rotor test. S3.2: Turn on power supply one and power supply two, start the motor (8), the stop block (14) removes the limit of the mover (6), starts the supercharger (10), the supercharger (10) applies load to the mover (6), so that the mover (6) moves under the action of magnetic force, and the mover (6) is subjected to load test; S4.1: Analyze the mutation position of the resistance suffered by the mover (6) by using the data measured by S1 and S2, and realize the troubleshooting and repair of the mechanical system and the magnetic resistance problem; S4.2: Analyze whether the permanent magnet and the electrical system are qualified through the locked-rotor test data of S3.1, and reversely verify the analysis result of S4.1; S4.3: Continuously detect the mover (6) and the electrical system by using the infrared thermal imager, analyze, and provide effective reference data for optimizing the installation layout of the electrical system, improving the heat dissipation structure, and troubleshooting poor contact.

2. A test fixture for linear motors as claimed in claim 1, characterized in that: The S1 includes the following method: S1.1: Turn off power supply one, turn on power supply two, test the assembly power-on, and the test assembly drives the mover (6) to move along the guide rail (3) by using the stop block (14); Define the space between the two groups of light sensor (15) receiving units as the test space, and define one reciprocating movement of the mover (6) in the test space as one test cycle; Further, drive the mover (6) to move for multiple test cycles by using the test assembly to reduce data errors, and transmit the data to the analysis module.

3. The mounting test apparatus for a linear motor according to claim 1, characterized by: The S2 includes the following method: S2.1: Turn off power supply two, turn on power supply one, the test assembly is powered off, the stop block (14) removes the limit of the mover (6), the electrical system of the mover (6) is powered on, the magnetic force drives the mover (6) to move along the guide rail (3), the electrical detection equipment collects the related electrical performance data of the mover (6) in the test cycle, and transmits the electrical performance data to the analysis module.

4. The test equipment for linear motor according to claim 1, characterized in that: The S4.1 includes the following method: S4.1: Accurately convert the resistance suffered by the mover (6) when moving by using the torque data collected in S1, calculate the mutation position of the resistance on the guide rail (3) according to the time point of the resistance change, facilitate the staff to troubleshoot, subtract the mechanical resistance from the electromagnetic thrust of S2 to get the magnetic resistance, analyze the change trend of the magnetic resistance in the test cycle, realize the optimization of the installation position of the permanent magnet and the armature core, and effectively reduce the influence of the magnetic resistance.

5. The test equipment for linear motor according to claim 1, characterized in that: The S4.2 includes the following method: S4.2: Detect the maximum electromagnetic thrust and the rated electromagnetic thrust of the linear motor by using the test assembly, compare with the theoretical value to judge whether the permanent magnet and the electrical system are qualified; Subtract the mechanical resistance obtained in S1 from the maximum electromagnetic thrust and the rated electromagnetic thrust respectively to obtain two groups of magnetic resistance data and corresponding change trends, further accurately lock the abnormal change position of the magnetic resistance, and reversely verify the analysis result of S4.

1.

6. The test equipment for linear motor according to claim 1, characterized in that: The S4.3 includes the following method: S4.2: Both tests of S3.1 and S3.2 will cause the heat generated by the electrical system to accumulate continuously, and the mover (6) and the electrical system are continuously detected by the infrared thermal imager, which provides effective reference data for optimizing the installation layout of the electrical system, improving the heat dissipation structure, and troubleshooting poor contact, etc.

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