Servo motor device for positioning, clamping and correcting
By integrating servo motors, ball screws, and guide rail pairs, the problem of traditional roll material processing equipment being unable to accurately position and integrate clamping and correction functions has been solved, achieving efficient and low-cost roll material positioning, clamping, and correction functions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAN XINDA MACHINERY
- Filing Date
- 2025-08-06
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional roll material processing equipment cannot achieve precise positioning and integrated clamping and correction functions, and the independent system increases equipment costs and makes operation cumbersome.
It integrates positioning, clamping and correction functions by using servo motors, ball screws, guide rails and other components. By utilizing the high precision characteristics of servo motors, and through the coordinated work of correction sensors and controllers, it achieves accurate positioning and stable clamping.
The simplified mechanical structure reduces equipment costs, enables precise positioning and clamping, and improves the practicality and efficiency of roll material processing.
Smart Images
Figure CN224279204U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roll material processing technology, specifically to a servo motor device for positioning, clamping and correction. Background Technology
[0002] Traditional unwinding racks typically use hydraulic cylinders for clamping in conjunction with an independent web-aligning system to complete the unwinding function. Some also use a combination of motor-driven unwinding, pneumatic cylinder clamping, and a web-aligning system. However, these traditional technologies have significant drawbacks: firstly, they cannot achieve precise positioning based on the material width; secondly, the web-aligning system and the left and right clamping systems are independent of each other, which not only increases equipment costs but also leads to cumbersome operation.
[0003] With the continuous popularization and maturity of servo motor technology, its price has dropped significantly. Utilizing the high precision characteristics of servo motors to improve traditional structures can effectively simplify mechanical structures, increase functionality, and facilitate user operation. Based on this, this utility model designs a device for positioning, clamping, and correction using a servo motor, which can simultaneously achieve positioning, clamping, and correction functions, saving the cost of a correction system. Utility Model Content
[0004] In view of the problems existing in the above-mentioned servo motors used for positioning, clamping and correction devices, this utility model is proposed.
[0005] Therefore, the purpose of this utility model is to provide a device for positioning, clamping and correction of a servo motor. This solves the problem that, with the continuous popularization and maturity of servo motor technology, its price has dropped significantly. By utilizing the high precision characteristics of servo motors to improve traditional structures, the mechanical structure can be effectively simplified, the functions can be increased and the operation can be made more convenient for users.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A servo motor device for positioning, clamping, and correction includes an unwinding roll, a correction sensor, and a fixed base. A first servo motor and a second servo motor are fixedly mounted on both sides of the interior of the fixed base. Ball screws are fixedly mounted on the output ends of both the first and second servo motors. A guide rail pair is fixedly mounted inside the fixed base. A first clamping unit and a second clamping unit are slidably provided on both sides of the guide rail pair. The surfaces of the two ball screws are threadedly connected to the first clamping unit and the second clamping unit, respectively.
[0008] Preferably, the top of the first clamping unit and the second clamping unit are provided with a support cylinder, the inside of the two support cylinders are provided with a support column, the top of the two support cylinders are provided with an internal threaded ring, and the two internal threaded rings are respectively threaded to the surface of the two support columns.
[0009] Preferably, a clamping block is fixedly installed on the top of each of the two support columns, a limiting post is rotatably provided on one side of each of the two clamping blocks, and a roll of material is provided between the two limiting posts.
[0010] Preferably, the correction sensor is located on one side of the unwound roll.
[0011] Preferably, a controller is fixedly installed on one side of the mounting base.
[0012] Preferably, the correction sensor, the first servo motor, and the second servo motor are all electrically connected to the controller.
[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0014] 1. This utility model integrates positioning, clamping, and correction functions into one unit by utilizing the high precision characteristics of a servo motor, eliminating the need for a separate correction system in traditional technologies and saving the cost of a separate correction system. Compared with the traditional method of using hydraulic cylinder clamping in conjunction with a separate correction system or a combination of motor-driven unwinding, cylinder clamping, and correction system, this device simplifies the mechanical structure and facilitates user operation through the cooperation of components such as servo motors, ball screws, and guide rail pairs.
[0015] 2. This utility model solves the problem that traditional technology cannot achieve precise positioning based on the width of the material. With the help of the high precision of the servo motor and the cooperation of the ball screw and guide rail pair, it can accurately position the unwound material roll and simultaneously realize positioning, clamping and correction functions, which increases the functionality and improves the practicality and efficiency of the device. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the overall structure of the support cylinder of this utility model;
[0019] Figure 3 This is a schematic diagram of the overall structure of the first servo motor of this utility model.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Unwinding coil; 2. Deviation sensor; 3. Fixing base; 4. First servo motor; 5. Second servo motor; 6. Ball screw; 7. Guide rail pair; 8. First clamping unit; 9. Second clamping unit; 10. Support cylinder; 11. Support column; 12. Internal threaded ring; 13. Clamping block; 14. Limiting column; 15. Controller. Detailed Implementation
[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0023] This utility model discloses a device for positioning, clamping and correcting deviation using a servo motor.
[0024] This utility model provides, for example Figure 1-3 The device shown is a servo motor for positioning, clamping, and correction, including a roll unwinding device 1, a correction sensor 2, and a fixed base 3. A first servo motor 4 and a second servo motor 5 are fixedly installed on both sides of the interior of the fixed base 3. Ball screws 6 are fixedly installed at the output ends of both the first servo motor 4 and the second servo motor 5. A guide rail pair 7 is fixedly installed inside the fixed base 3. A first clamping unit 8 and a second clamping unit 9 are slidably provided on both sides of the guide rail pair 7. The surfaces of the two ball screws 6 are threadedly connected to the first clamping unit 8 and the second clamping unit 9, respectively, integrating the positioning, clamping, and correction functions into one unit, eliminating the need for a separate correction system in traditional technology.
[0025] This utility model discloses a servo motor for positioning, clamping, and correction. The top of the first clamping unit 8 and the second clamping unit 9 are both provided with support cylinders 10. Support columns 11 are slidably provided inside the two support cylinders 10. The top of the two support cylinders 10 is rotatably provided with internal threaded rings 12. The two internal threaded rings 12 are respectively threadedly connected to the surfaces of the two support columns 11, which facilitates clamping of unwound material rolls 1 of different thicknesses.
[0026] This utility model discloses a servo motor for positioning, clamping and correction. The top of each of the two support columns 11 is fixedly installed with a clamping block 13. Each of the two clamping blocks 13 is rotatably provided with a limiting column 14 on one side. A roll 1 is provided between the two limiting columns 14.
[0027] This utility model discloses a servo motor for positioning, clamping and correction, wherein the correction sensor 2 is located on one side of the unwinding roll 1.
[0028] This utility model discloses a servo motor for positioning, clamping and correction, wherein a controller 15 is fixedly installed on one side of the fixed base 3.
[0029] This utility model discloses a device for positioning, clamping and correcting the deviation of a servo motor. The deviation correction sensor 2, the first servo motor 4 and the second servo motor 5 are all electrically connected to the controller 15.
[0030] During use, the correction sensor 2, the first servo motor 4, the second servo motor 5 and the controller 15 work together to achieve the positioning, clamping and correction functions of the unwinding roll 1.
[0031] Location function implementation
[0032] First, the material width parameter is input to the controller 15. The controller 15 will send a control signal to the first servo motor 4 according to the parameter. After receiving the signal, the first servo motor 4 drives the first clamping unit 8 to slide on the guide rail pair 7 through the ball screw 6, so that it moves to a preset position that matches the material width, and completes the initial positioning.
[0033] Clamping function implemented
[0034] The unwinding coil 1 is placed between the two limiting posts 14. By rotating the internal threaded ring 12, the height of the support post 11 inside the support cylinder 10 can be adjusted so that the clamping block 13 adapts to the thickness of the unwinding coil 1. Then, the clamping force of the second servo motor 5 is set by the controller 15. The second servo motor 5 enters the torque mode, and its output end drives the second clamping unit 9 to move along the guide rail pair 7 towards the first clamping unit 8 through the ball screw 6 until the two limiting posts 14 clamp the unwinding coil 1 and the clamping force reaches the set value. At this time, the second servo motor 5 will maintain this torque output to maintain a stable clamping state.
[0035] Correction function implementation
[0036] Deviation detection: The deviation correction sensor 2 adopts the photoelectric through-beam detection principle. Its detection end is aligned with the edge of the unwound material roll 1. When the unwound material roll 1 shifts laterally, the edge of the roll will block or expose the detection light path of the sensor. The sensor converts the light signal into an electrical signal (voltage signal, range 0-5V). When the edge of the roll is in the standard position, it outputs a 2.5V reference signal. When the roll shifts to the left, the output voltage is lower than 2.5V. The larger the shift, the lower the voltage. When the roll shifts to the right, the output voltage is higher than 2.5V. The larger the shift, the higher the voltage. This electrical signal is transmitted to the controller 15 in real time as the raw data for deviation judgment.
[0037] Signal processing and correction execution: The controller 15 has a built-in PID (proportional-integral-derivative) control algorithm. Its processing flow is as follows: First, signal acquisition is performed. The voltage signal of the correction sensor 2 is received in real time and converted into a digital quantity (offset, unit mm). Then, deviation judgment is performed. The current offset is compared with a preset threshold (±0.1mm). If it exceeds the threshold, correction is started. Next, drive control is performed. According to the offset direction and magnitude, the compensation displacement of the first servo motor 4 is calculated (e.g., when the offset is +1mm, the motor drives the first clamping unit to move 1mm to the left). A pulse signal is output to control the rotation of the first servo motor 4. The first servo motor 4 drives the first clamping unit 8 to move through the ball screw 6, which in turn drives the unwinding roll 1 to move in the correction direction. Finally, the displacement feedback is collected in real time through the built-in encoder of the servo motor. After confirming that the correction is in place, the action stops.
[0038] Servo motor mode coordination and conflict avoidance
[0039] The coordinated control of the first servo motor 4 and the second servo motor 5 is achieved through the timing logic and mode switching mechanism of the controller 15, as follows:
[0040] During clamping operation: the first servo motor 4 is in the position locked state (does not operate), the second servo motor 5 works in torque mode (outputs the set clamping force), the controller 15 will lock the position of the first motor, and only the second motor adjusts the output according to the torque feedback to ensure the clamping force is stable.
[0041] During the correction operation: the first servo motor 4 operates in position mode (performing compensation displacement), while the second servo motor 5 continues to operate in torque mode (maintaining the set clamping force). During the correction process, the second motor monitors the torque change in real time and adjusts the output torque through PID to offset the clamping force fluctuation caused by the movement of the first motor (fluctuation range ≤5%).
[0042] During synchronous movement: the first servo motor 4 operates in position mode (dominant movement), and the second servo motor 5 operates in position follow mode (following the first motor). The two motors are driven by synchronous pulse signals from the controller 15 to ensure that their relative positions remain unchanged, and the clamping force is constrained by a preset torque threshold.
[0043] Based on the above working principle, the device can effectively integrate positioning, clamping and correction functions, simplify the mechanical structure, reduce equipment costs, and at the same time ensure the accuracy and stability of the coil processing process.
[0044] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A device for positioning, clamping and rectifying deviation of a servo motor, comprising a pay-off reel (1), a rectifying sensor (2) and a fixing base (3), characterized in that, The first servo motor (4) and the second servo motor (5) are fixedly installed on the two sides of the interior of the fixed base (3). Ball screws (6) are fixedly installed at the output ends of the first servo motor (4) and the second servo motor (5). A guide rail pair (7) is fixedly installed inside the fixed base (3). A first clamping unit (8) and a second clamping unit (9) are slidably provided on both sides of the guide rail pair (7). The surfaces of the two ball screws (6) are threadedly connected to the first clamping unit (8) and the second clamping unit (9) respectively.
2. Device for positioning, clamping and rectifying deviations according to claim 1, characterized in that, The first clamping unit (8) and the second clamping unit (9) are each provided with a support cylinder (10) at the top. The two support cylinders (10) are each provided with a support column (11) inside. The two support cylinders (10) are each provided with an internal threaded ring (12) at the top. The two internal threaded rings (12) are respectively threaded to the surfaces of the two support columns (11).
3. The servo motor for positioning, clamping, and correction according to claim 2, characterized in that, Clamping blocks (13) are fixedly installed on the top of each of the two support columns (11), and limiting posts (14) are rotatably provided on one side of each of the two clamping blocks (13). A roll of unwinding material (1) is provided between the two limiting posts (14).
4. The device for positioning, clamping, and correcting deviation using a servo motor according to claim 1, characterized in that, The correction sensor (2) is located on one side of the unwinding roll (1).
5. The servo motor for positioning, clamping, and correction according to claim 1, characterized in that, A controller (15) is fixedly installed on one side of the mounting base (3).
6. The device for positioning, clamping, and correcting deviation using a servo motor according to claim 1, characterized in that, The correction sensor (2), the first servo motor (4), and the second servo motor (5) are all electrically connected to the controller (15).