Cross slide linear motor guiding detection tool and detection method for ultra-precision numerical control machine tool

Abstract

The application relates to the technical field of numerical control machine tools, and discloses a horizontal-moving linear motor guiding detection tool and a detection method of an ultra-precision numerical control machine tool. The guiding detection tool comprises a side plate installed on the outer side of a track, a striding carriage which can be horizontally slidably arranged on the side plate, and a transmission connecting plate located on the inner side of the track, and the striding carriage and the transmission connecting plate are connected through front and rear position adjusting structures. The mover provides guiding constraint and is good in universality, can be used for detecting when the horizontal-moving linear motor is in no-load state, simulating the case that the motor is separately operated, detecting the basic motion performance and phase angle matching condition, and can also be used for double-drive synchronous guiding when the motor is loaded (double-motor connection on a slide saddle), which is closer to the actual working state. In addition, the detection method of the linear motor covers motor detection under the conditions of no load and load, the no-load test is carried out first, then the load test is carried out, and the performance of the horizontal-moving linear motor under different working conditions is more comprehensively reflected.

Description

Technical Field

[0001] This invention relates to the field of CNC machine tool technology, and in particular to a guide and testing fixture and method for a transverse linear motor of an ultra-precision CNC machine tool. Background Technology

[0002] Ultra-precision CNC machine tools can achieve extremely high machining accuracy, reaching sub-micron or even nanometer level precision, which gives them an unparalleled advantage when machining high-precision parts.

[0003] Patent application CN118543960A discloses an ultra-precision laser processing machine tool. Figure 5 and Figure 6 As shown, the slide saddle 87 is floatingly mounted on the bed 89. The bed of the ultra-precision CNC machine tool is equipped with a front track 81 and a rear track 82. A front transverse linear motor 83 is mounted on the front track 81, and a rear transverse linear motor 84 is mounted on the rear track 82. The front and rear ends of the slide saddle 87 are connected to the movers on the front transverse linear motor 83 and the rear transverse linear motor 84 respectively through mover connecting plates 88. A grating ruler 85 is mounted on the inner surface of both the front track 81 and the rear track 82. The reading head 851 of the grating ruler 85 is connected to the corresponding mover connecting plate 88. During operation, the front transverse linear motor 83 and the rear transverse linear motor 84 jointly drive the slide saddle 87 to move back and forth reciprocally. The grating ruler 85 provides real-time feedback of the position signal of the slide saddle 87. Since the front and rear ends of the slide saddle 87 are connected to the movers of the front and rear transverse linear motors respectively, the two transverse linear motors must maintain a high degree of synchronization during operation.

[0004] Since the traverse linear motors are purchased externally, there may be a phase angle mismatch between the stator and mover. This can cause the motors to fail to move along the expected trajectory during operation, resulting in mover deviation, wobbling, or vibration. If a problem occurs with the traverse linear motors, the movements of the two motors will become inconsistent, and the slide saddle may tilt or twist, severely affecting machining accuracy and machine tool stability. Therefore, it is necessary to conduct performance tests on ultra-precision CNC machine tools before they leave the factory to check the motion performance and phase angle matching of the linear motors, and to promptly identify any potential asynchrony issues during operation. This allows for appropriate adjustments to ensure smooth and accurate movement of the slide saddle.

[0005] Therefore, there is an urgent need to develop guiding and detection fixtures and methods for the transverse linear motors of the ultra-precision CNC machine tools. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of this invention is to provide a guide and detection fixture and method for a transverse linear motor of an ultra-precision CNC machine tool, which aims to provide guide constraints for the mover of the linear motor and detect the motion performance and phase angle matching of the linear motor under no-load and load conditions.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A guide and testing fixture for a transverse linear motor of an ultra-precision CNC machine tool includes a side plate mounted on the outer surface of a track, a transverse sliding carriage slidably mounted on the side plate, and a transmission connecting plate located on the inner side of the track. The transverse sliding carriage and the transmission connecting plate are connected by a front-to-back adjustment structure. One side of the transmission connecting plate is provided with a first threaded hole for connecting with a first screw, so that the reading head of the grating ruler is connected to the transmission connecting plate. The end face of the transmission connecting plate facing the mover of the transverse linear motor is provided with multiple mounting holes for a second screw to pass through and connect to the mover of the transverse linear motor or to the mover connecting plate.

[0009] The crossing carriage includes a vertical support plate located on the outside of the track and a flat cross plate spanning both the inner and outer sides of the track; the transmission connecting plate is shaped like a figure 7 and includes a flat connecting plate and a vertical connecting plate, and the mounting hole and the first threaded hole are opened on the vertical connecting plate.

[0010] The front and rear adjustment structure includes multiple second threaded holes spaced apart on the flat span plate, and front and rear positioning holes on the flat connecting plate. The number of front positioning holes is the same as the number of second threaded holes and they correspond one-to-one. The number of rear positioning holes is the same as the number of second threaded holes and they correspond one-to-one. The third screw passes through either the front or rear positioning hole and connects to the second threaded hole.

[0011] As a further improvement to the above technical solution, the side plate is provided with a laterally extending linear rail, and the cross carriage is connected to the linear rail via a slider.

[0012] As a further improvement to the above technical solution, the side plate is provided with a collision protection seat for limiting the sliding range of the carriage.

[0013] As a further improvement to the above technical solution, weight reduction holes are provided on the vertical support plate and the horizontal cross plate of the cross carriage.

[0014] As a further improvement to the above technical solution, the mounting hole is a vertically extending waist-shaped hole.

[0015] This invention also provides a method for detecting the transverse linear motor of an ultra-precision CNC machine tool. The ultra-precision CNC machine tool has a front track and a rear track. A front transverse linear motor is mounted on the front track, and a rear transverse linear motor is mounted on the rear track. The movers on the front and rear transverse linear motors jointly drive the slide saddle to move via a mover connecting plate. A grating ruler is provided on the inner surface of both the front and rear tracks. The detection method includes the following steps:

[0016] a. Install the aforementioned transverse linear motor guide detection fixture on the front track, with the transmission connecting plate connected to the mover of the front transverse linear motor and the transmission connecting plate connected to the reading head of the grating ruler;

[0017] b. Install the aforementioned transverse linear motor guide detection fixture on the rear track; the transmission connecting plate is connected to the mover of the rear transverse linear motor, and the transmission connecting plate is connected to the reading head of the grating ruler;

[0018] c. The front and rear transverse linear motors move synchronously to achieve no-load testing, and the grating ruler feeds back signals to the detection system;

[0019] d. The mover of the front transverse linear motor forms a drive connection with the front end of the slide saddle through the mover connecting plate, so that the transmission connecting plate is connected to the mover connecting plate;

[0020] e. The mover of the rear transverse linear motor forms a drive connection with the rear end of the slide saddle through the mover connecting plate, so that the transmission connecting plate is connected to the mover connecting plate;

[0021] f. The front and rear transverse linear motors move synchronously to achieve load testing, and the grating ruler feeds back the signal to the detection system.

[0022] The transmission connecting plate is connected to the mover of the front transverse linear motor. The specific operation of connecting the transmission connecting plate to the reading head of the grating ruler is as follows: the transmission connecting plate and the reading head on the grating ruler are connected through corner blocks. The first screw is engaged with the first threaded hole of the transmission connecting plate to fix the transmission connecting plate and the corner block. The second screw passes through the mounting hole on the transmission connecting plate and connects with the third threaded hole on the mover of the front transverse linear motor to fix the transmission connecting plate and the mover of the front transverse linear motor.

[0023] The mover of the front transverse linear motor is connected to the front end of the slide saddle via the mover connecting plate. The specific operation of connecting the transmission connecting plate with the mover connecting plate is as follows: the transmission connecting plate on the front track is removed and connected to the mover of the front transverse linear motor and the reading head of the grating ruler; the mover of the front transverse linear motor is connected to the slide saddle via the mover connecting plate, and the reading head of the grating ruler is connected to the mover connecting plate. The transmission connecting plate is adjusted to the splicing position with the mover connecting plate by the front and rear adjustment structure. The second screw passes through the mounting hole on the transmission connecting plate and connects to the fourth threaded hole on the mover connecting plate, so that the transmission connecting plate and the mover of the front transverse linear motor are fixedly connected.

[0024] The beneficial effects of this invention are as follows: The linear motor guiding test fixture provided by this invention can provide guiding constraints for the mover, has good versatility, and can be used to test the transverse linear motor under no-load conditions, simulating the motor's independent operation, and testing its basic motion performance and phase angle matching; it can also be used for dual-drive synchronous guidance when the motor is under load (two motors connected to the saddle), which is closer to the actual working state, comprehensively evaluating the motor's performance and phase angle consistency under actual working conditions, ensuring stable operation of the motor under various working conditions, and providing multifaceted guarantees for the reliable operation of ultra-precision CNC machine tools. In addition, the linear motor testing method covers motor testing under both no-load and loaded conditions. By first conducting no-load testing, the basic characteristics such as the transverse linear motor's own motion performance and phase angle consistency can be evaluated independently, eliminating the interference of inherent problems of the transverse linear motor on the test results, and accurately understanding the motor's operating state under no-load conditions; then, load testing is conducted to simulate the working condition of the transverse linear motor connecting with the saddle and driving the saddle movement in actual operation, more realistically reflecting the performance of the transverse linear motor in actual operation. Attached Figure Description

[0025] Figure 1 A three-dimensional guide and testing fixture for a transverse linear motor is installed on a track. Figure 1 .

[0026] Figure 2 A three-dimensional guide and testing fixture for a transverse linear motor is installed on a track. Figure 2 .

[0027] Figure 3 This is a schematic diagram showing the results of no-load testing of the front and rear transverse linear motors using a guide detection fixture.

[0028] Figure 4 This is a schematic diagram showing the results of load testing of the front and rear transverse linear motors using a guide detection fixture.

[0029] Figure 5 For the three-dimensional of ultra-precision CNC machine tools Figure 1 .

[0030] Figure 6 For the three-dimensional of ultra-precision CNC machine tools Figure 2 .

[0031] Figure 7 This is a flowchart of the detection method for a transverse linear motor.

[0032] Explanation of main component symbols: 1-rail, 2-side plate, 3-crossing carriage, 31-vertical support plate, 32-flat cross plate, 33-weight reduction hole, 4-transmission connecting plate, 41-mounting hole, 42-flat connecting plate, 421-front row positioning hole, 43-vertical connecting plate, 44-first screw, 45-third screw, 5-front and rear adjustment structure, 61-linear rail, 62-slider, 7-anti-collision seat, 81-front rail, 82-rear rail, 83-front transverse linear motor, 831-stator, 832-mover, 84-rear transverse linear motor, 85-grating ruler, 851-reading head, 86-corner block, 87-slide saddle, 88-mover connecting plate, 89-bed. Detailed Implementation

[0033] This invention provides a guide and testing fixture and method for a transverse linear motor of an ultra-precision CNC machine tool. To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the scope of protection of the invention.

[0034] Please see Figures 1-4 This invention provides a guide and detection fixture for a transverse linear motor of an ultra-precision CNC machine tool, including a side plate 2 mounted on the outer side of a track 1, a transverse sliding carriage 3 slidably mounted on the side plate 2, and a transmission connecting plate 4 located on the inner side of the track 1. The transverse sliding carriage 3 and the transmission connecting plate 4 are connected by a front and rear adjustment structure 5. One side of the transmission connecting plate 4 is provided with a first threaded hole, which is used to connect with a first screw 44, so that the reading head 851 of the grating ruler 85 is connected to the transmission connecting plate 4. The end face of the transmission connecting plate 4 facing the mover 832 of the transverse linear motor is provided with a plurality of mounting holes 41, which are used for a second screw to pass through and connect to the mover 832 of the transverse linear motor or to the mover connecting plate 88.

[0035] It is understandable that there is a certain air gap between the mover 832 and stator 831 of the transverse linear motor. Theoretically, the mover 832 moves under the action of the magnetic field force, moving in a straight line as expected. However, when the phase angles of the mover 832 and stator 831 of the transverse linear motor are mismatched, the mover 832 cannot move smoothly in a straight line. Therefore, a guiding detection fixture is used to provide guiding constraints for the mover 832, thereby detecting the phase angles of the mover 832 and stator 831 of the transverse linear motor in reverse. The side plate 2 is installed on the outer surface of the track 1 of the ultra-precision CNC machine tool to provide a stable mounting base. The transverse carriage 3 is slidably mounted on the side plate 2, allowing the transmission connecting plate 4 connected to it to also move smoothly laterally. When the transmission connecting plate 4 is connected to the mover 832 of the transverse linear motor, the transmission connecting plate 4 not only provides linear motion guidance for the mover 832, but also enables the mover 832 to form a transfer transmission with the reading head 851 of the grating ruler 85. After the detection begins, when the transverse linear motor starts, stops, moves at a constant speed, or accelerates or decelerates, the reading head 851 of the grating ruler 85 changes position following the mover 832 of the transverse linear motor. The detection system can then detect the motion performance of the transverse linear motor under no-load conditions based on the data fed back by the grating ruler 85, thereby determining whether the phase angles of the mover 832 and the stator 831 of the transverse linear motor are consistent.

[0036] When the mover 832 of the transverse linear motor forms a drive connection with the slide saddle 87 through the mover connecting plate 88, the transverse linear motor is equivalent to being loaded. When the transmission connecting plate 4 is connected to the mover connecting plate 88, the transmission connecting plate 4 also provides linear motion guidance for the mover 832. After the detection begins, when the transverse linear motor starts, stops, moves at a constant speed, or accelerates and decelerates, the reading head 851 of the grating ruler 85 changes position with the mover 832 of the transverse linear motor. The detection system can detect the motion performance of the transverse linear motor under load based on the data fed back by the grating ruler 85, and thus determine whether the phase angles of the mover 832 and stator 831 of the transverse linear motor are consistent under normal operation.

[0037] The linear motor guiding test fixture provided by this invention can provide guiding constraints for the mover 832. Under various states such as motor start-up, stop, uniform speed movement, and acceleration / deceleration, the detection system can accurately detect the motion performance of the linear motor under no-load and load conditions based on the data accurately fed back by the grating ruler 85. This allows for precise determination of whether the phase angles of the mover 832 and stator 831 of the transverse linear motor are consistent, effectively improving the accuracy of the detection and ensuring timely detection of potential asynchrony problems during motor operation. Furthermore, the linear motor guiding test fixture provided by this invention is cleverly installed using the track 1, offering good versatility. It can be used for testing the transverse linear motor under no-load conditions, simulating the motor's independent operation and detecting its basic motion performance and phase angle matching; it can also be used for dual-drive synchronous guidance when the motor is under load (dual motors connected to the upper saddle), more closely resembling actual working conditions. This allows for a comprehensive evaluation of the motor's performance and phase angle consistency under actual working conditions, ensuring stable operation of the motor under various working conditions and providing multifaceted guarantees for the reliable operation of ultra-precision CNC machine tools.

[0038] Specifically, the traverse carriage 3 includes a vertical support plate 31 located outside the track 1 and a flat spanning plate 32 spanning both the inner and outer sides of the track 1; the transmission connecting plate 4 is shaped like a "7" and includes a flat connecting plate 42 and a vertical connecting plate 43, with the mounting hole 41 and the first threaded hole located on the vertical connecting plate 43. The vertical support plate 31 provides stable support for the traverse carriage 3 outside the track 1, while the flat spanning plate 32 spans both the inner and outer sides of the track 1, allowing the traverse carriage 3 to be securely mounted on the side plate 2 and connected to the transmission connecting plate 4. This structural design enhances the stability and reliability of the traverse carriage 3, ensuring it can withstand forces and vibrations under various motion states during the testing process, guaranteeing the overall structural robustness of the testing fixture, and providing a stable foundation for accurately testing the performance of the transverse linear motor. The transmission connecting plate 4 has a 7-shaped design, in which the flat connecting plate 42 can better fit and connect with other components, increasing the contact area and improving the stability of the connection; the vertical connecting plate 43 has a mounting hole 41 and a first threaded hole, which facilitates connection with the mover 832 of the transverse linear motor and the reading head 851 of the grating ruler 85. This design makes the connection more direct and reliable, reduces the detection error caused by unstable connection, and improves the accuracy and reliability of detection.

[0039] Furthermore, the front and rear adjustment structure 5 includes multiple second threaded holes spaced apart on the flat span plate 32, and front and rear positioning holes on the flat connecting plate 42. The number of front positioning holes 421 and second threaded holes are the same and correspond one-to-one, and the number of rear positioning holes is the same and corresponds one-to-one. The third screw 45 passes through either the front or rear positioning hole and connects to the second threaded hole. It can be understood that when it is necessary to directly test the performance of the mover 832, the third screw 45 can pass through the front positioning hole 421 and connect to the second threaded hole, so that the vertical connecting plate 43 is in contact with the mover 832, thereby directly obtaining the motion information of the mover 832 and accurately detecting the operating state and phase angle of the mover 832 itself. When it is necessary to consider the overall working condition of the mover 832 after it is connected to the slide saddle 87, the third screw 45 can be passed through the rear positioning hole and connected to the second threaded hole, so that the vertical connecting plate 43 fits with the mover connecting plate 88. This allows the motor to be tested under simulated actual working load, meeting the needs of different testing scenarios and purposes, and improving the adaptability and versatility of the testing fixture.

[0040] Operators can easily switch between individual detection of the mover 832 and linkage detection of the mover 832 and the slide saddle 87 by simply changing the connection position of the third screw 45. This eliminates the need for complex disassembly and reinstallation of the detection fixture, greatly improving detection efficiency, saving detection time and labor costs, and making switching between different detection needs more convenient and efficient.

[0041] Furthermore, the side plate 2 is provided with a laterally extending linear rail 61, and the traversing carriage 3 is connected to the linear rail 61 via a slider 62. The cooperation between the linear rail 61 and the slider 62 provides a high-precision linear guiding mechanism for the traversing carriage 3. This makes the lateral sliding of the traversing carriage 3 on the side plate 2 very smooth, with almost no interference from frictional resistance. During the detection of various motion states by the lateral linear motor, the traversing carriage 3 can move laterally smoothly following the movement of the mover 832 without any jamming or jumping, ensuring the continuity and stability of the detection process and providing a good foundation for accurately obtaining the motion information of the mover 832.

[0042] Furthermore, the side plate 2 is provided with a crash stop 7 to limit the sliding range of the cross carriage 3. By providing the crash stop 7, excessive sliding of the cross carriage 3 away from the rail 61 can be prevented.

[0043] Furthermore, the vertical support plate 31 and the horizontal span plate 32 of the traverse carriage 3 are provided with weight-reducing holes 33. The weight-reducing holes 33 significantly reduce the overall weight of the traverse carriage 3. During the installation and debugging of the testing fixture, operators need to perform operations such as handling, positioning, and installation of the traverse carriage 3. The lighter weight makes these operations easier and more convenient, reduces the labor intensity of operators, and improves work efficiency. At the same time, when installed on the side plate 2, it also reduces the load pressure on the side plate 2 and other connecting components, making the entire installation structure more stable and reliable.

[0044] Furthermore, the mounting hole 41 is a vertically extending oblong hole. This vertically extending oblong hole provides a certain vertical adjustment space for the connection between the mover 832 of the transverse linear motor and the transmission connecting plate 4. Due to potential manufacturing errors or installation deviations during actual production and assembly, the installation height of different transverse linear motor movers 832 may vary slightly. The oblong hole design allows the transmission connecting plate 4 to accommodate these differences within a certain range. By adjusting the position of the connecting screws in the oblong hole, the transmission connecting plate 4 and the mover 832 can be easily and accurately connected, improving the installation adaptability and versatility of the inspection fixture and reducing installation difficulties and adjustment workload caused by size mismatches.

[0045] See Figure 5 and Figure 6 As shown, the completed ultra-precision CNC machine tool is equipped with a front track 81 and a rear track 82. A front transverse linear motor 83 is mounted on the front track 81, and a rear transverse linear motor 84 is mounted on the rear track 82. The movers 832 on the front and rear transverse linear motors 83 and 84 jointly drive the sliding saddle 87 to move via a mover connecting plate 88. A linear scale 85 is mounted on the inner surface of both the front track 81 and the rear track 82. (See...) Figure 7 As shown, the present invention also provides a method for detecting the transverse linear motor of an ultra-precision CNC machine tool, comprising the following steps:

[0046] a. Install the transverse linear motor guide detection fixture as described above on the front track 81. The transmission connecting plate 4 is connected to the mover 832 of the front transverse linear motor 83, and the transmission connecting plate 4 is connected to the reading head 851 of the grating ruler 85.

[0047] b. Install the transverse linear motor guide detection fixture as described above on the rear track 82; the transmission connecting plate 4 is connected to the mover 832 of the rear transverse linear motor 84, and the transmission connecting plate 4 is connected to the reading head 851 of the grating ruler 85.

[0048] c. The front transverse linear motor 83 and the rear transverse linear motor 84 move synchronously to achieve no-load testing and the grating ruler 85 feeds back the signal to the detection system;

[0049] d. The mover 832 of the forward lateral linear motor 83 forms a drive connection with the front end of the slide saddle 87 through the mover connecting plate 88, so that the transmission connecting plate 4 is connected to the mover connecting plate 88;

[0050] e. The mover 832 of the rear transverse linear motor 84 forms a drive connection with the rear end of the slide saddle 87 through the mover connecting plate 88, so that the transmission connecting plate 4 is connected to the mover connecting plate 88.

[0051] f. The front transverse linear motor 83 and the rear transverse linear motor 84 move synchronously to achieve load testing, and the grating ruler 85 feeds back the signal to the detection system.

[0052] This testing method covers motor testing under both no-load and load conditions. First, a no-load test is conducted to independently evaluate the basic characteristics of the transverse linear motor, such as its motion performance and phase angle consistency, eliminating interference from inherent problems of the transverse linear motor and accurately understanding its operating state under no-load conditions. Then, a load test is performed to simulate the actual working condition where the transverse linear motor connects to and drives the slide saddle 87, providing a more realistic reflection of the transverse linear motor's performance in real-world operation. This comprehensive testing approach ensures that the performance evaluation of the transverse linear motor is thorough, providing comprehensive and accurate data support for determining whether the motor meets the working requirements of ultra-precision CNC machine tools, effectively improving the accuracy and reliability of the testing.

[0053] The transmission connecting plate 4 is connected to the mover 832 of the front transverse linear motor 83. The specific operation of connecting the transmission connecting plate 4 to the reading head 851 of the grating ruler 85 is as follows: the transmission connecting plate 4 and the reading head 851 on the grating ruler 85 are connected through a corner block 86. The first screw 44 engages with the first threaded hole of the transmission connecting plate 4, thus fixing the transmission connecting plate 4 to the corner block 86. The second screw passes through the mounting hole 41 on the transmission connecting plate 4 and connects to the third threaded hole on the mover 832 of the front transverse linear motor 83, thus fixing the transmission connecting plate 4 to the mover 832 of the front transverse linear motor 83. The corner block 86 serves as a flexible adapter between the transmission connecting plate 4 and the reading head 851 of the grating ruler 85. Since the installation positions and angles of the reading head 851 of the grating ruler 85 and the transmission connecting plate 4 may differ, the corner block 86 can be adjusted and adapted according to the actual situation, making the connection between the two smoother and more accurate. The screw fixing method is reliable and accurate in positioning. Workers can use an electric screwdriver to assist in the installation and removal of screws, which greatly improves work efficiency.

[0054] The specific operation of step b can be referred to the specific operation of step a, and will not be repeated here.

[0055] The mover 832 of the front transverse linear motor 83 is connected to the front end of the slide saddle 87 via the mover connecting plate 88. The specific operation of connecting the transmission connecting plate 4 with the mover connecting plate 88 is as follows: the transmission connecting plate 4 on the front track 81 is removed and connected to the mover 832 of the front transverse linear motor 83 and the reading head 851 of the grating ruler 85; the mover 832 of the front transverse linear motor 83 is connected to the slide saddle 87 via the mover connecting plate 88, and the reading head 851 of the grating ruler 85 is connected to the mover connecting plate 88; the transmission connecting plate 4 is adjusted to the splicing position with the mover connecting plate 88 via the front and rear adjustment structure 5; the second screw passes through the mounting hole 41 on the transmission connecting plate 4 and connects to the fourth threaded hole on the mover connecting plate 88, so that the transmission connecting plate 4 and the mover 832 of the front transverse linear motor 83 are fixedly connected. Operators can easily switch the transmission connecting plate 4 from the no-load detection mode, which is directly connected to the mover 832, to the load detection mode, which is connected to the mover connecting plate 88, without the need for complex disassembly and reassembly of the testing fixture. This ability to quickly switch detection modes greatly improves testing efficiency, saves testing time and labor costs, makes switching between different testing needs more convenient, and enables more timely acquisition of motor performance data under different operating conditions.

[0056] The specific operation of step e can be referred to the specific operation of step d, and will not be repeated here.

[0057] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0058] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] It is understood that those skilled in the art can make equivalent substitutions or changes to the technical solution and inventive concept of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A method for detecting the transverse linear motor of an ultra-precision CNC machine tool, characterized in that, The ultra-precision CNC machine tool is equipped with a front track and a rear track. A front transverse linear motor is mounted on the front track, and a rear transverse linear motor is mounted on the rear track. The movers on both the front and rear transverse linear motors drive the slide saddle to move via a mover connecting plate. A grating ruler is mounted on the inner surface of both the front and rear tracks. The transverse linear motor guiding and detection fixture of the ultra-precision CNC machine tool includes a side plate mounted on the outer surface of the track, a transverse sliding carriage slidably mounted on the side plate, and a transmission connecting plate located on the inner side of the track. The transverse sliding carriage and the transmission connecting plate are connected by a front-rear adjustment structure. One side of the transmission connecting plate has a first threaded hole for connecting with a first screw, allowing the reading head of the grating ruler to connect with the transmission connecting plate. Multiple mounting holes are opened on the end face of the transmission connecting plate facing the mover of the transverse linear motor. These mounting holes allow a second screw to pass through and connect with the mover of the transverse linear motor, or to connect with the mover itself. The connecting plates form a connection; the crossing carriage includes a vertical support plate located outside the track and a flat spanning plate spanning both sides of the track; the transmission connecting plate is 7-shaped and includes a flat connecting plate and a vertical connecting plate, the mounting hole and the first threaded hole are opened on the vertical connecting plate; the front and rear adjustment structure includes multiple second threaded holes spaced apart on the flat spanning plate, front row positioning holes and rear row positioning holes on the flat connecting plate, the number of front row positioning holes and second threaded holes are the same and correspond one-to-one, the number of rear row positioning holes and second threaded holes are the same and correspond one-to-one, the third screw passes through the front row positioning hole or the rear row positioning hole and connects to the second threaded hole; the side plate is provided with a horizontally extending linear rail, and the crossing carriage is connected to the linear rail through a slider; the mounting hole is a vertically extending waist-shaped hole; the side plate is provided with a collision protection seat for limiting the sliding range of the crossing carriage; the vertical support plate and the flat spanning plate of the crossing carriage are provided with weight reduction holes, and the detection method includes the following steps: a. Install the aforementioned transverse linear motor guide detection fixture on the front track, with the transmission connecting plate connected to the mover of the front transverse linear motor and the transmission connecting plate connected to the reading head of the grating ruler; b. Install the aforementioned transverse linear motor guide detection fixture on the rear track; the transmission connecting plate is connected to the mover of the rear transverse linear motor, and the transmission connecting plate is connected to the reading head of the grating ruler; c. The front and rear transverse linear motors move synchronously to achieve no-load testing, and the grating ruler feeds back signals to the detection system; d. The mover of the front transverse linear motor forms a drive connection with the front end of the slide saddle through the mover connecting plate, so that the transmission connecting plate is connected to the mover connecting plate; e. The mover of the rear transverse linear motor forms a drive connection with the rear end of the slide saddle through the mover connecting plate, so that the transmission connecting plate is connected to the mover connecting plate; f. The front and rear transverse linear motors move synchronously to achieve load testing, and the grating ruler feeds back signals to the detection system; The transmission connecting plate is connected to the mover of the front transverse linear motor. The specific operation of connecting the transmission connecting plate to the reading head of the grating ruler is as follows: the transmission connecting plate and the reading head on the grating ruler are connected through a corner block. The first screw is engaged with the first threaded hole of the transmission connecting plate to fix the transmission connecting plate and the corner block. The second screw passes through the mounting hole on the transmission connecting plate and connects with the third threaded hole on the mover of the front transverse linear motor to fix the transmission connecting plate and the mover of the front transverse linear motor. The mover of the front transverse linear motor is connected to the front end of the slide saddle via the mover connecting plate. The specific operation of connecting the transmission connecting plate with the mover connecting plate is as follows: the transmission connecting plate on the front track is removed and connected to the mover of the front transverse linear motor and the reading head of the grating ruler; the mover of the front transverse linear motor is connected to the slide saddle via the mover connecting plate, and the reading head of the grating ruler is connected to the mover connecting plate. The transmission connecting plate is adjusted to the splicing position with the mover connecting plate by the front and rear adjustment structure. The second screw passes through the mounting hole on the transmission connecting plate and connects to the fourth threaded hole on the mover connecting plate, so that the transmission connecting plate and the mover of the front transverse linear motor are fixedly connected.

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