Servo drive structure of grating ruler and laser measuring instrument

Abstract

The utility model belongs to the field of precision machinery manufacturing and automation control relates to a kind of servo drive structure of configuration time gage and laser measuring instrument.It includes servo motor, roller screw, drive workstation and time gage measuring system.Servo motor drives roller screw through coupling, and then drives the linear motion of workstation.Time gage is installed in the side of workstation, and is detected displacement with reading head cooperation.The utility model directly measures by integrating high-precision time gage, effectively eliminates transmission chain error;And additional laser measuring system real-time monitoring screw thermal deformation state, carries out fault early warning, to significantly improve the positioning accuracy and long-term operation reliability of workstation.

Description

Technical Field

[0001] This utility model belongs to the field of precision machinery manufacturing and automation control, specifically relating to a servo drive structure configured with a time scale and a laser measuring instrument. Background Technology

[0002] In the field of high-end equipment such as precision CNC machine tools and coordinate measuring machines, the positioning accuracy and long-term stability of servo drive systems are key to their performance. Currently, the widely used traditional servo drive solutions mostly adopt the transmission form of "rotary servo motor and ball screw" and rely on the motor's built-in encoder for closed-loop position control.

[0003] However, this control method has an inherent flaw: the encoder can only indirectly detect the motor's rotation angle and cannot directly sense the actual position of the worktable. During high-speed operation, the ball screw generates significant heat due to friction, causing thermal expansion. Simultaneously, the screw's pitch error, manufacturing and installation errors, and the clearances and deformations in various links of the transmission chain, such as the coupling, cannot be detected by the encoder. These errors are directly transmitted and accumulated at the execution end—the worktable—resulting in actual positioning accuracy far lower than the system's theoretical value. Especially under long-term, high-load conditions, thermal deformation becomes the primary factor restricting the improvement of positioning accuracy.

[0004] To overcome the aforementioned open-loop chain error problem, the industry has attempted to directly install linear displacement sensors such as grating rulers on the worktable to construct a fully closed-loop control system (e.g., the scheme disclosed in publication number CN216441654U). While this scheme can detect the actual displacement of the worktable, traditional grating rulers have extremely demanding requirements for the working environment, are easily contaminated and interfered with by on-site oil, dust, vibration, and cutting fluid vapor, resulting in relatively high maintenance costs. Furthermore, existing fully closed-loop systems lack real-time monitoring methods for the health status of core transmission components (such as the leadscrew). The thermal elongation and bending of the leadscrew during long-term operation is a gradual process; once an abnormality occurs, it often directly leads to the scrapping of a batch of workpieces. Therefore, a system capable of real-time monitoring of the leadscrew status and providing early warnings is crucial for ensuring the reliability of ultra-high precision machining. Utility Model Content

[0005] The purpose of this invention is to provide a servo drive structure that includes a time scale and a laser measuring instrument, and to combine laser monitoring and active cooling technology to significantly improve the positioning accuracy, environmental adaptability and long-term operational reliability of the servo drive structure.

[0006] A servo drive structure for configuring a time scale and a laser measuring instrument includes a servo motor. The drive rod of the servo motor is connected to a ball screw via a coupling. A ball screw nut seat is sleeved on the ball screw and fixedly connected to the worktable. When the servo motor drives the ball screw to rotate, it drives the ball screw nut seat and the worktable to perform linear reciprocating motion in the horizontal direction. It also includes a time scale and a reading head. The time scale is horizontally fixed on the side of the worktable along its length and is used to detect the linear displacement of the worktable. The reading head is mounted on an external bracket and is used to read the time scale signal. A measuring end cap is fixedly installed on the head of the roller screw. Inside the worktable, at the same horizontal level as the axis of the roller screw, a laser measuring instrument is installed, with the laser measuring instrument directly opposite the end cap.

[0007] This scheme constitutes a high-precision closed-loop control system, with a servo motor driving the worktable via a coupling and a ball screw. Its core advantage lies in the addition of a time-grid scale system that directly and in real-time detects the actual displacement of the worktable, rather than relying on the position inferred from the servo motor encoder. This effectively eliminates the unavoidable pitch error, backlash, and wear error that occur after long-term use in ball screw drives, thereby improving the positioning accuracy of the worktable by an order of magnitude. A measuring end cap is fixedly mounted on the ball screw. Inside the worktable, at the horizontal level of the ball screw axis, a laser measuring instrument is positioned directly opposite the end cap. This laser measuring instrument, acting as a condition monitoring unit, measures the change in distance between itself and the end cap in real-time. This distance change ignores the normal feed of the ball screw nut mechanism and directly monitors the axial thermal elongation of the ball screw. Simultaneously, it diagnoses radial bending deformation of the ball screw by judging whether the laser spot deviates from the circular reflection area on the end cap. This monitoring system is independent of the time-grid scale measurement system and provides a mechanical fault early warning function for the equipment.

[0008] A servo drive structure for a time scale and laser measuring instrument is disclosed, featuring a waterproof cover that completely encloses the time scale and reading head. The inner wall of the waterproof cover is lined with sealing strips, and dustproof end caps are located at both ends of the cover. The waterproof cover is a long, strip-shaped, sealed structure that completely encloses the time scale and reading head. This design provides comprehensive protection, enabling its application in harsh environments such as machining centers and CNC grinding machines where coolant and metal shavings are present. Its effectiveness extends beyond dust and water protection; it also prevents oil mist from adhering to the time scale surface, avoiding signal attenuation and measurement failures caused by oil contamination, thus greatly enhancing the reliability and environmental adaptability of the equipment.

[0009] A servo drive structure for configuring a time scale and a laser measuring instrument is disclosed, with the coupling being either a diaphragm coupling or a lamellar coupling. Using flexible couplings such as diaphragm / lamellar couplings effectively absorbs instantaneous radial and angular misalignments generated during servo motor start-up, stopping, and reversing, protecting the precision roller screw and bearings from additional stress impacts. This not only reduces maintenance costs, but its smooth transmission characteristics also reduce system vibration and noise, creating a stable measurement environment for the time scale and subsequent laser measurements.

[0010] A servo drive structure for configuring a grating ruler and a laser measuring instrument is disclosed. The end cap has a smooth, circular measuring area, and the laser measuring instrument is used to read the distance between the laser measuring instrument and the end cap. The measuring surface of the end cap is machined into a smooth, circular plane, providing an ideal optical reflective surface for laser ranging. This minimizes diffuse reflection and speckle noise of the laser beam, ensuring the receiver receives a stable and strong reflected signal, thereby guaranteeing the stability and repeatability of the measurement data and avoiding measurement jumps and errors caused by surface roughness or tilt. By analyzing changes in the laser ranging data, it is possible to diagnose early signs of faults such as thermal elongation or bending of the lead screw.

[0011] A servo drive structure configuring a time scale and a laser measuring instrument is disclosed. During calibration before the worktable moves, the laser beam emitted by the laser measuring instrument is within a circular measurement area. The laser measuring instrument has a built-in alarm; when the laser beam leaves the circular measurement area, the alarm will sound. This solution upgrades the laser measuring instrument from a simple measuring tool into an online monitoring and safety early warning system. During equipment preheating or periodic calibration, by observing whether the laser spot deviates from the preset "circular measurement area," it is possible to intuitively determine whether the ball screw has undergone radial bending deformation due to temperature rise. The built-in alarm can immediately issue a warning, preventing the machine tool from processing out-of-tolerance workpieces when replacement is required, achieving a leap from passive measurement to proactive early warning.

[0012] A servo drive structure configured with a scale and laser measuring instrument is disclosed. Inside the worktable, a blower is located at the bottom of the lead screw nut seat, with the blower's nozzle facing the lead screw nut seat. The lead screw nut seat is the primary source of frictional heat in lead screw drives. The blower is directly and precisely mounted nearby and directed towards it. This air-cooling structure efficiently and promptly removes the generated heat, suppressing thermal expansion of the roller lead screw at its source. This is an active thermal error compensation strategy that can more directly and effectively maintain the geometric accuracy of the mechanical system.

[0013] A servo drive structure configured with a time scale and a laser measuring instrument is disclosed. A controller is located on the side of the worktable, and the blower, laser measuring instrument, reading head, and servo motor are electrically connected to the controller. The controller integrates the dispersed measurement units (time scale, laser measuring instrument, servo motor encoder) and execution unit (blower) into a collaborative intelligent whole through physical wiring. The time scale is responsible for closed-loop control; the laser measuring instrument is responsible for alarms; and the controller intelligently starts and stops the blower based on the alarm signal from the laser measuring instrument or the thermal expansion trend.

[0014] A servo drive structure for configuring a time scale and a laser measuring instrument is disclosed. The controller integrates a data fusion interface, a wind power control interface, and a calibration interface. The data output terminals of the servo motor encoder and the reading head are electrically connected to the data fusion interface via wiring, while the control input terminal of the blower is connected to the wind power control interface via wiring. The integration of dedicated physical interfaces on the controller standardizes the connection of each component, facilitating easy plugging and unplugging, and greatly simplifying on-site installation, commissioning, and subsequent maintenance and replacement. Simultaneously, distinguishing signals of different functions at the physical interface level avoids mutual interference between signals, improving the system's anti-interference capability and stability.

[0015] A servo drive structure configuring a time scale and a laser measuring instrument is disclosed. The controller incorporates a signal processing chip, with a data fusion interface connected to the input pins of this chip. The output pins of the signal processing chip are connected to a comparator circuit, whose output is electrically connected to a calibration interface, which in turn connects to a display screen. By using a dedicated signal processing chip and comparator circuit, real-time, high-speed comparison of measurement signals (time scale signal and servo motor encoder feedback signal) is achieved at the hardware level. This purely hardware-based comparison method is faster and more reliable than software algorithms. The comparison result (such as the difference) is output to the display screen through the calibration interface, providing the operator with an intuitive "accuracy health status" reading. Based on this data, the operator can manually or automatically control the start / stop and airflow of the blower using set thresholds, ultimately constructing an intelligent thermal error compensation closed-loop system of "measurement-diagnosis-feedback-control".

[0016] The advantages of this invention lie in its fully closed-loop control system constructed using a time-grid ruler, which directly monitors the worktable displacement, eliminating the impact of lead screw pitch error, backlash, and wear on accuracy, and significantly improving positioning accuracy. Its waterproof cover design enhances reliability in environments with coolant and metal debris. The flexible coupling reduces vibration and noise. A laser measuring instrument provides real-time diagnosis of lead screw thermal elongation and bending deformation, offering fault warnings. The blower actively cools the heat source, and the controller intelligently coordinates all units to ensure the system's high precision, high stability, and good environmental adaptability. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall device according to Embodiment 1 of this utility model; Figure 2 This utility model Figure 1 A magnified view of a portion of the image; Figure 3 This is a front view of the overall device for implementing this utility model; Figure 4 This utility model Figure 2 A cross-sectional view of interface A; Figure 5 This utility model Figure 4 Enlarged view of part B; Figure 6 This is a schematic diagram of the roller screw and screw nut seat of this utility model.

[0019] Figure description: 1-Servo motor, 2-Worktable, 4-Waterproof cover, 5-Laser measuring instrument, 6-Blower, 7-Controller, 11-Roller screw, 11a-Measuring end cover, 12-Coupling, 13-Bearing seat, 21-Screw nut seat, 31-Time scale, 32-Reading head, 33-Bracket. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Example 1: This invention provides a servo drive structure with a time scale and a laser measuring instrument, which aims to solve the problem of decreased positioning accuracy of roller screws due to thermal expansion and other factors in the prior art, and achieves high-precision measurement and self-calibration through a dual measurement system.

[0023] See attached document Figure 1-4 As shown, the servo drive structure mainly includes a servo motor 1, a coupling 12, a ball screw 11, a ball screw nut seat 21, and a worktable 2. The servo motor 1 is fixedly mounted on the machine tool with bolts, and its output shaft is connected to one end of the ball screw 11 through the coupling 12. The coupling 12 is preferably a diaphragm coupling, used to compensate for installation errors and absorb vibration. The ball screw 11 is supported by a bearing seat 13, on which the ball screw nut seat 21 is fitted. The worktable 2 is fixedly connected to the ball screw nut seat 21 with bolts. When the servo motor 1 receives a control signal and rotates, it drives the ball screw 11 to rotate through the coupling 12, thereby converting the ball screw nut seat 21 into a precise linear reciprocating motion of the worktable 2 in the horizontal direction.

[0024] As attached Figure 1 Appendix Figure 2 As shown, to monitor the actual displacement of the worktable 2 in real time, this utility model adds a measurement system. This system includes a time scale 31, a reading head 32, a bracket 33, and a waterproof cover 4. The time scale 31 is horizontally fixed to the right side of the worktable 2 (i.e., the time scale mounting side) along its length direction by bolts. The reading head 32 is used to read the precision engraving signals on the time scale 31. It is fixed to the machine tool bed by the bracket 33, remaining relatively stationary with respect to the moving worktable 2, and maintaining a very small, constant gap with the time scale 31. The waterproof cover 4 is a U-shaped long groove structure, which is bolted over the outside of the time scale 31 and the reading head 32, completely sealing them and effectively preventing the intrusion of cutting fluid, oil, and dust, ensuring the long-term reliability of the measurement system under harsh working conditions.

[0025] To enable system self-diagnosis and monitoring, as shown in the attached document... Figure 4 Place, Attachment Figure 5As shown, this invention adds a monitoring system—a laser measurement system. A measuring end cap 11a is fixedly installed at the right end of the ball screw 11 using screws. The right side of the end cap 11a is machined into a smooth circular plane, forming a laser reflective surface. Inside the worktable 2, at a height corresponding to the axis of the ball screw 11, a laser measuring instrument 5 is installed. The emitting head of the laser measuring instrument 5 faces the circular plane of the measuring end cap 11a, and its optical axis is at the same horizontal height as the axis of the ball screw 11. The laser measuring instrument 5 is used to measure the distance between itself and the end cap 11a with high precision. Since the end cap 11a rotates and moves axially synchronously with the ball screw 11, the change in this distance directly reflects the thermal elongation and axial displacement of the ball screw. In this invention, the laser measuring instrument 5 serves as a condition monitoring device, monitoring the positional changes of the end cap 11a to reflect real-time changes in the mechanical state of the ball screw 11, such as thermal elongation and bending, thus achieving fault early warning.

[0026] See attached document Figure 4 As shown, to actively suppress heat sources, this utility model also includes an active heat dissipation system. Inside the workbench 2, below the lead screw nut seat 21, a blower 6 is installed. The air outlet of the blower 6 is precisely aligned with the joint between the lead screw nut seat 21 and the roller lead screw 11 (the main heat source), allowing for air cooling and effectively suppressing thermal expansion of the roller lead screw caused by frictional heat generation. The blower 6 is threaded to the workbench 2, and vibration damping pads are provided at the connection point to effectively reduce structural vibration transmission.

[0027] See attached document Figure 1 Appendix Figure 2 As shown, to achieve intelligent control, a controller 7 is installed at the bottom of the workbench 2. The controller 7 is electrically connected to the data output terminal of the servo motor 1, the data output terminal of the reading head 32, and the control input terminal of the blower 6 via cables.

[0028] The controller 7 integrates a signal processing chip and a comparator circuit. After the data collected by the servo motor 1 and the reading head 32 are transmitted to the controller 7, the internal signal processing chip processes the two signals in real time, and the comparator circuit performs high-speed comparison.

[0029] See attached document Figure 4 As shown, the system enters calibration mode during initial warm-up or periodic calibration. Controller 7 compares the step size of servo motor 1 with the relative displacement value measured by reading head 32, calculates the system error, and compensates for it. If the ball screw 11 bends due to thermal expansion or prolonged wear, causing the laser spot to deviate from the circular area, the built-in alarm of laser measuring instrument 5 will issue a warning.

[0030] During normal operation, the time scale 31 serves as the main measuring system for closed-loop position control. Simultaneously, the controller 7 continuously monitors the status of the reading head 32 and the servo motor 1. When the controller 7 determines, through data comparison, that the thermal expansion error exceeds the allowable threshold, it automatically activates the blower 6 and adjusts its outlet temperature according to the error magnitude to precisely cool the lead screw nut seat 21. During the blower 6's cooling process, the laser measuring instrument 5 can stop measuring. After a cooling period (set according to actual operating conditions), the laser measuring instrument 5 can be restarted to test the entire servo drive mechanism. If the controller 7 detects that the error is within the allowable threshold, it continues operation. This process achieves intelligent, on-demand cooling based on measured data, avoiding energy waste caused by the continuous operation of the blower 6.

[0031] Example 2 This embodiment illustrates how the controller 7, through its built-in hardware circuitry and interfaces, compares the feedback signal from the encoder of the servo motor 1 with the measurement signal from the time-grid ruler reading head 32 in real time, and integrates the monitoring data from the laser measuring instrument 5 to achieve a comprehensive diagnosis of the thermal deformation state of the ball screw 11. This system is applied to a high-precision CNC grinding machine. Its core lies in the controller 7's ability to simultaneously acquire the expected position signal from the servo motor 1 as the execution unit, the actual position signal from the worktable 2 fed back by the time-grid ruler 31 as the direct measurement unit, and the health status signal of the ball screw 11 provided by the laser measuring instrument 5.

[0032] The encoder of servo motor 1 outputs a pulse signal indicating the motor's rotation angle in real time. This signal is transmitted to the data fusion interface of controller 7 via a line. Simultaneously, the time-grid ruler reading head 32, mounted on the side of worktable 2, continuously detects the linear displacement of worktable 2 and converts it into a pulse signal, which is also sent to the same data fusion interface. A dedicated signal processing chip inside controller 7 receives these two pulse streams and calculates the position deviation value in real time at an extremely high sampling frequency. This deviation is the difference between the "theoretically calculated position of worktable 2 by the encoder of servo motor 1" and the "actual position of worktable 2 measured by the time-grid ruler 31."

[0033] The laser measuring instrument 5 monitors the condition of the ball screw 11 in two ways: axial thermal elongation measurement and radial bending deformation diagnosis. For axial thermal elongation measurement, the laser measuring instrument 5 continuously emits a laser beam towards the smooth, circular reflective area on the end cap 11a of the ball screw 11, calculating the real-time distance by precisely measuring the laser's round-trip time. When the ball screw 11 undergoes axial thermal elongation due to temperature rise, the distance between the end cap 11a and the laser measuring instrument 5 changes slightly. The laser measuring instrument 5 monitors this distance change at high resolution and transmits the measurement data to the controller 7 in real time.

[0034] For diagnosing radial bending deformation, the laser measuring instrument 5 monitors the positional change of the laser spot on the circular reflective area of ​​the end cap 11a. When the roller screw 11 undergoes radial bending, the plane of the end cap 11a will tilt, causing the reflected laser spot to deviate from the preset circular measurement area. The position-sensitive detector built into the laser measuring instrument 5 accurately records the amount and direction of the spot's offset. When the offset exceeds a preset value, the built-in alarm immediately triggers a warning.

[0035] The signal processing chip of controller 7 processes three data streams simultaneously: the encoder signal from servo motor 1, the position signal from time scale 31, and the monitoring data from laser measuring instrument 5. The comparator circuit compares the deviation between the measured value from time scale 31 and the encoder value from servo motor 1 in real time, while also correlating and analyzing the thermal expansion data provided by laser measuring instrument 5. When the system detects a regular increase in position deviation consistent with the trend of thermal expansion, controller 7 activates the blower 6 via the wind power control interface to provide directional cooling to the lead screw nut seat 21. At this point, the entire servo drive mechanism can be paused.

[0036] This multi-sensor data fusion strategy enables the system to distinguish between different types of error sources: the difference between the time grating ruler 31 and the encoder of the servo motor 1 mainly reflects the mechanical error of the transmission system, while the data from the laser measuring instrument 5 is specifically used to diagnose thermal deformation problems. When the laser measuring instrument 5 detects radial bending deformation and triggers an alarm, the controller 7 will immediately pause the servo motion and display the specific fault type and severity on the screen through the calibration interface, guiding maintenance personnel to perform targeted repairs.

[0037] Through the aforementioned collaborative working mechanism, the system has achieved an upgrade from simple position control to comprehensive health status management, significantly improving the machining accuracy and operational reliability of CNC grinding machines. This system architecture, integrating time scale 31 full closed-loop control, laser measuring instrument 5 online monitoring, and intelligent temperature control compensation, provides a complete thermal error compensation solution for high-precision CNC machine tools.

[0038] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the present utility model, and are not intended to limit the implementation methods of the present utility model in any way. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the present utility model, but these should still be regarded as the same technology or embodiment as the present utility model.

[0039] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A servo drive structure for configuring a time scale and a laser measuring instrument, comprising a servo motor (1), wherein the drive rod of the servo motor (1) is connected to a ball screw (11) via a coupling (12), a ball screw nut seat (21) is sleeved on the ball screw (11), and the ball screw nut seat (21) is fixedly connected to a worktable (2). When the servo motor (1) drives the ball screw (11) to rotate, it drives the ball screw nut seat (21) and the worktable (2) to perform linear reciprocating motion in the horizontal direction. Its features are: It also includes a time scale (31) and a reading head (32). The time scale (31) is horizontally fixedly installed on the side of the worktable (2) along the length direction and is used to detect the linear displacement of the worktable (2). The reading head (32) is installed on an external bracket (33) and is used to read the signal of the time scale (31). The head of the ball screw (11) is fixedly equipped with a measuring end cap (11a). Inside the worktable (2), a laser measuring instrument (5) is provided at the horizontal height of the axis of the ball screw (11). The laser measuring instrument (5) is directly opposite the end cap (11a).

2. The servo drive structure for configuring a time scale and a laser measuring instrument according to claim 1, characterized in that: A waterproof cover (4) is provided on the outside of the time scale (31) and the reading head (32), and the waterproof cover (4) completely covers the time scale (31) and the reading head (32).

3. The servo drive structure for configuring a time scale and a laser measuring instrument according to claim 2, characterized in that: The inner wall of the waterproof cover (4) is provided with a sealing strip, and the two ends of the tank are provided with dustproof end caps.

4. The servo drive structure for configuring a time scale and a laser measuring instrument according to claim 1, characterized in that: The coupling (12) is a diaphragm coupling or a plum blossom coupling.

5. The servo drive structure for configuring a time scale and a laser measuring instrument according to claim 1, characterized in that: The end cap (11a) has a smooth circular reflective area, which provides a stable light reflective surface for the laser measuring instrument (5). The laser measuring instrument (5) is used to read the distance between the laser measuring instrument (5) and the end cap (11a).

6. The servo drive structure for configuring a time scale and a laser measuring instrument according to claim 5, characterized in that: During the calibration before the workbench (2) moves, the laser beam emitted by the laser measuring instrument (5) is within the circular measurement area. The laser measuring instrument (5) has a built-in alarm. When the laser beam leaves the circular measurement area, the built-in alarm will sound.

7. The servo drive structure for configuring a time scale and a laser measuring instrument according to claim 6, characterized in that: Inside the workbench (2), a blower (6) is provided at the bottom of the lead screw nut seat (21), with the blower (6) having its nozzle facing the lead screw nut seat (21).

8. The servo drive structure for configuring a time scale and a laser measuring instrument according to claim 7, characterized in that: The workbench (2) is equipped with a controller (7) on its side, and the blower (6), laser measuring instrument (5), reading head (32), and servo motor (1) are electrically connected to the controller (7).

9. The servo drive structure for configuring a time scale and a laser measuring instrument according to claim 8, characterized in that: The controller (7) integrates a data fusion interface, a wind power control interface, and a calibration interface; the data output terminals of the servo motor (1) and the reading head (32) are electrically connected to the data fusion interface via a line, and the control input terminal of the blower (6) is connected to the wind power control interface via a line.

10. A servo drive structure for configuring a time scale and a laser measuring instrument according to claim 9, characterized in that: The controller (7) is equipped with a signal processing chip, and the data fusion interface is connected to the input pin of the signal processing chip; the output pin of the signal processing chip is connected to the comparator circuit, the output of the comparator circuit is electrically connected to the calibration interface, and the calibration interface is connected to the display screen.

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