A laser-assisted positioning mechanism for spinning

Abstract

A laser-assisted positioning mechanism for spinning belongs to the technical field of mechanical processing. The mechanism aims to solve the problems of low precision and long calibration time in the traditional positioning method of multi-axis numerical control spinning equipment. It includes a sliding table module composed of a sliding table support and a sliding table body. The sliding table body is connected to the sliding table support through a linear guide rail. A servo motor drives the displacement of the sliding table body through a synchronous belt transmission mechanism, which includes a first synchronous wheel, a second synchronous wheel, and a closed-loop synchronous belt. The bottom of the sliding table body is fixed to the synchronous belt. A laser level is rigidly fixed to the side of the sliding table body through four symmetrical mounting holes and a mounting slot, projecting a laser reference line parallel to the axis of the spinning wheel. The bottom of the sliding table support is provided with a double fixed seat, which is rigidly connected to the processing platform through bolts. The mechanism realizes a displacement accuracy of 0.1 millimeters through closed-loop control of the servo motor, allowing the laser reference line to be dynamically adjusted along the axis of the spinning wheel.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a laser-assisted positioning mechanism for spinning. Background Technology

[0002] With the increasing demands for precision in machining large and complex components in the heavy equipment manufacturing sector, traditional CNC spinning equipment faces significant technical bottlenecks in multi-axis collaborative positioning. Taking the GXF series heavy-duty CNC spinning machine as an example, its processing objects are mostly large-sized, multi-process complex workpieces. When the equipment adopts a three-axis linkage and dual-rotor synchronous processing mode, it is necessary to frequently perform positioning calibration on each motion axis.

[0003] However, traditional mechanical measuring tools cannot adapt to the dynamic measurement requirements of multi-axis systems due to spatial interference, making it difficult to accurately establish the positioning reference between the spinning wheel and the workpiece, resulting in a significant increase in accumulated errors. Especially in the scenario of simultaneous machining with two spinning wheels, conventional manual calibration methods suffer from low repeatability and long calibration time, severely restricting processing efficiency and finished product qualification rate. In the existing technology, although fixed laser marking devices can provide a static reference, they cannot dynamically adapt to the axial displacement of the spinning wheel. This results in insufficient flexibility in adjusting the processing path, making it difficult to meet the precise positioning requirements of high-degree-of-freedom multi-axis equipment.

[0004] To address the aforementioned problems, this utility model document proposes a laser-assisted positioning mechanism for spinning. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing multi-axis dual-rotor CNC spinning machines, such as low positioning accuracy and poor calibration efficiency due to interference from traditional measuring tools, and to propose a laser-assisted positioning mechanism for spinning.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A laser-assisted positioning mechanism for spinning includes:

[0008] The slide module includes a slide bracket and a slide body, wherein the slide body is slidably connected to the slide bracket via a guide rail pair;

[0009] The servo motor is fixed to one end of the slide bracket, and its output shaft is driven by the synchronous belt transmission mechanism located inside the slide bracket.

[0010] The laser level is fixed to the side of the slide body via a mounting base and is used to project a laser reference line parallel to the axis of the spinning wheel;

[0011] The synchronous belt drive mechanism includes a first synchronous pulley, a second synchronous pulley, and a synchronous belt surrounding both. The bottom of the slide body is fixedly connected to the synchronous belt. The servo motor drives the synchronous belt to move the slide body linearly along the guide rail pair, enabling the laser level to achieve dynamic calibration.

[0012] In one possible design, the top of the slide support is provided with an opening, and the timing belt is fixedly connected to the bottom surface of the slide body through the opening to form a closed-loop transmission path.

[0013] In one possible design, the output shaft of the servo motor passes through the side wall of the slide bracket and is coaxially connected to the first synchronous pulley, while the second synchronous pulley is rotatably mounted on the far end of the slide bracket via a bearing.

[0014] In one possible design, the contact surface between the mounting base and the slide body is provided with mounting grooves symmetrically distributed at the four corners, and the slide body is provided with mounting holes at corresponding positions, and rigid locking is achieved by corresponding fasteners.

[0015] In one possible design, the bottom of the slide support has two parallel fixed seats, each with a through bolt hole whose axis is perpendicular to the direction of movement of the slide body.

[0016] In this application, the laser-assisted positioning mechanism for spinning first activates the servo motor. The output shaft of the servo motor drives the first synchronous wheel to rotate, which in turn drives the second synchronous wheel to rotate synchronously via a synchronous belt. Since the bottom of the slide body is fixedly connected to the synchronous belt, the transmission of the synchronous belt is converted into linear reciprocating motion of the slide body along the guide rail of the slide support. During the movement of the slide body, the laser level fixed to its side moves synchronously, projecting a horizontal laser line parallel to the axis of the spinning wheel through the laser emission port. The operator can adjust the radial position of the spinning wheel in real time based on this laser line, aligning the laser line with the area to be processed on the workpiece surface, thus establishing a precise spinning forming reference. When fine-tuning of the positioning reference is required, the servo motor controls the movement of the slide body, driving the laser level to precisely translate along the guide rail direction, thereby achieving dynamic calibration of the laser reference line. After positioning, the spinning wheel can perform spinning processing along the path indicated by the laser marking.

[0017] The mounting base at the bottom of the slide body is secured to the processing platform with external bolts, ensuring the overall stability of the mechanism during operation. The mounting base and the slide body are connected by symmetrically distributed mounting holes and slots at the four corners, along with fasteners, effectively preventing the laser level from shifting under vibration. Throughout the process, the closed-loop control of the servo motor and the synchronous belt drive mechanism work together to achieve a positioning accuracy of 0.1 mm, meeting the requirements of high-precision spinning processes.

[0018] Beneficial effects: In this utility model, the laser-assisted positioning mechanism for spinning uses a servo motor to drive a synchronous belt transmission mechanism, combined with the linear guide rail of the slide module, to achieve 0.1 mm-level precision displacement control of the laser level. The laser reference line can move synchronously with the slide body in real time, dynamically matching the processing path of the dual spinning wheels, completely solving the defect of traditional fixed marking devices that cannot adapt to multi-axis motion scenarios;

[0019] In this utility model, a laser-assisted positioning mechanism for spinning is described. Through real-time visual guidance by laser marking, the operator does not need to repeatedly disassemble measuring tools or stop the machine for calibration. The positioning time is greatly shortened. It is especially suitable for multi-process continuous processing scenarios of large-sized workpieces, and significantly reduces the intensity of manual intervention and labor costs.

[0020] In this utility model, the laser-assisted positioning mechanism for spinning uses a fastener connection method with mounting holes and mounting grooves distributed symmetrically at the four corners, combined with a rigid locking structure of double fixed seats at the bottom of the slide table bracket. This can effectively suppress the interference of processing vibration on the positioning reference of the laser level and ensure the continuous stability of the laser marking under complex working conditions.

[0021] In this utility model, the laser-assisted positioning mechanism for spinning has a modular design of slide module and laser level that supports quick assembly and disassembly. It can be flexibly adapted to spinning equipment of different specifications, and is especially suitable for high degree of freedom processing platforms with three or more axes or dual spinning wheels, and has broad prospects for industrial application.

[0022] In this invention, the laser-assisted positioning mechanism is linked to the guide rail slide by a servo motor-driven synchronous belt, giving the laser level a dynamic positioning capability of 0.1 mm. It accurately projects a laser reference line that can move synchronously with the spinning wheel, completely solving the problem of positioning reference drift in multi-axis equipment, significantly shortening the positioning time and reducing labor costs. At the same time, the modular structure is compatible with multi-specification spinning machines, especially suitable for high-degree-of-freedom equipment such as three-axis double spinning wheels, effectively improving the processing efficiency and pass rate of complex workpieces. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of a laser-assisted positioning mechanism for spinning proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the disassembled structure of the slide module of a laser-assisted positioning mechanism for spinning proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the laser level structure of a laser-assisted positioning mechanism for spinning proposed in this utility model;

[0026] Figure 4This is a schematic diagram of the main structure of the slide table of a laser-assisted positioning mechanism for spinning proposed in this utility model.

[0027] In the diagram: 1. Slide module; 2. Servo motor; 3. Laser level; 4. Slide bracket; 5. Slide body; 6. Fixture; 7. First synchronous pulley; 8. Second synchronous pulley; 9. Synchronous belt; 10. Mounting base; 11. Mounting groove; 12. Mounting hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example 1: Refer to Figure 1-4 A positioning mechanism comprising three main parts: a slide module 1, a servo motor 2, and a laser level 3.

[0030] In this embodiment, the slide module 1 consists of a slide bracket 4 and a slide body 5. The slide bracket 4 serves as the supporting structure for the entire slide module 1, providing a track and space for the movement of the slide body 5. The slide body 5 and the slide bracket 4 are slidably connected via guide rails, allowing the slide body 5 to slide linearly on the slide bracket 4.

[0031] To enable the movement of the slide body 5, in this embodiment, the slide module 1 is also equipped with a drive mechanism. This drive mechanism includes a first synchronous pulley 7, a second synchronous pulley 8, and a synchronous belt 9, all disposed within the slide support 4. The first synchronous pulley 7 and the second synchronous pulley 8 are located near both ends of the slide support 4 and are rotatably connected to the inner wall of the slide support 4, allowing them to rotate freely within the slide support 4. The synchronous belt 9 is connected to the first synchronous pulley 7 and the second synchronous pulley 8, forming a transmission system. An opening is provided at the top of the slide support 4, through which the bottom of the slide body 5 is fixedly connected to the synchronous belt 9. When the synchronous belt 9 moves under the drive of the first synchronous pulley 7 and the second synchronous pulley 8, it causes the slide body 5 to move linearly on the slide support 4.

[0032] In this embodiment, the servo motor 2 is located at one end of the slide module 1 and is fixedly mounted on one side of the slide bracket 4. One end of the output shaft of the servo motor 2 rotates through one side of the slide bracket 4 and is fixedly connected to one end of the shaft of the adjacent first synchronous pulley 7. Thus, when the servo motor 2 is working, its output shaft drives the first synchronous pulley 7 to rotate, which in turn drives the second synchronous pulley 8 to rotate through the synchronous belt 9, thereby achieving precise driving of the synchronous belt 9 and ultimately causing the slide body 5 to move at a predetermined speed and direction.

[0033] In this embodiment, the laser level 3 is disposed on one side of the slide body 5 and is used to project laser lines to provide a positioning reference line for the spinning wheel. The laser level 3 is the same as that in the patent with publication number CN222862825U.

[0034] This application can be used in the field of machining technology, or in other fields applicable to this application.

[0035] Example 2: Reference Figure 2 , 3 4. Improvement based on Example 1: A laser-assisted positioning mechanism for spinning, which is applied to the field of machining technology;

[0036] To secure the laser level 3, in this embodiment, a mounting base 10 is fixedly installed at the end of the laser level 3 furthest from the laser emission port. Four mounting holes 12 are provided on one side of the slide body 5, located near the four corners of the slide body 5. Mounting grooves 11 are provided at each of the four corners of the mounting base 10, and each of the four mounting grooves 11 corresponds to an adjacent slide body 5. During installation, simply place the mounting base 10 in the corresponding position on the slide body 5, aligning the mounting grooves 11 with the mounting holes 12, and then use external screws passing through the mounting holes 12 and mounting grooves 11 to secure the laser level 3 to the slide body 5.

[0037] In addition, in this embodiment, two fixing seats 6 are fixedly installed at the bottom of the slide bracket 4. These two fixing seats 6 are used to fix the slide module 1 to the corresponding mounting platform to ensure the stability of the entire mechanism during operation.

[0038] However, as is well known to those skilled in the art, the working principle and wiring method of the servo motor 2 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0039] The working principle and usage process of this technical solution are as follows:

[0040] When using this laser-assisted positioning mechanism for spinning, the servo motor 2 is first started. The output shaft of the servo motor 2 drives the first synchronous wheel 7 to rotate, which in turn drives the second synchronous wheel 8 to rotate synchronously via the synchronous belt 9. Since the bottom of the slide body 5 is fixedly connected to the synchronous belt 9, the transmission of the synchronous belt 9 is converted into the linear reciprocating motion of the slide body 5 along the guide rail of the slide support 4. During the movement of the slide body 5, the laser level 3 fixed to its side moves synchronously, projecting a horizontal laser line parallel to the axis of the spinning wheel through the laser emission port. The operator can adjust the radial position of the spinning wheel in real time according to the laser line, so that the laser line coincides with the area to be processed on the workpiece surface, establishing a precise spinning forming benchmark. When fine-tuning of the positioning benchmark is required, the servo motor 2 controls the movement of the slide body 5, driving the laser level 3 to move precisely along the guide rail direction, thereby achieving dynamic calibration of the laser benchmark. After positioning is completed, the spinning wheel can perform spinning processing along the path indicated by the laser marking.

[0041] The fixed base 6 at the bottom of the slide body 5 is fastened to the processing platform by external bolts, ensuring the stability of the entire mechanism during operation. The mounting base 10 is connected to the slide body 5 by mounting holes 12 and mounting grooves 11 symmetrically distributed at the four corners, along with fasteners, which effectively prevents the laser level 3 from shifting under vibration. Throughout the process, the closed-loop control of the servo motor 2 and the synchronous belt 9 transmission mechanism work together to achieve a positioning accuracy of 0.1 mm, meeting the requirements of high-precision spinning processes.

[0042] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A laser-assisted positioning mechanism for spinning, characterized in that, include: The slide module (1) includes a slide bracket (4) and a slide body (5), wherein the slide body (5) is slidably connected to the slide bracket (4) through a guide rail pair; The servo motor (2) is fixed at one end of the slide bracket (4), and its output shaft is driven by the synchronous belt transmission mechanism located in the slide bracket (4). The laser level (3) is fixed to the side of the slide body (5) by the mounting base (10) and is used to project a laser reference line parallel to the axis of the spinning wheel; The synchronous belt drive mechanism includes a first synchronous pulley (7), a second synchronous pulley (8), and a synchronous belt (9) surrounding both. The bottom of the slide body (5) is fixed to the synchronous belt (9). The servo motor (2) drives the synchronous belt (9) to move the slide body (5) linearly along the guide rail pair, so that the laser level (3) can achieve dynamic calibration.

2. The laser-assisted positioning mechanism for spinning according to claim 1, characterized in that, The slide bracket (4) has an opening at the top, and the synchronous belt (9) is fixedly connected to the bottom surface of the slide body (5) through the opening to form a closed-loop transmission path.

3. The laser-assisted positioning mechanism for spinning according to claim 2, characterized in that, The output shaft of the servo motor (2) passes through the side wall of the slide bracket (4) and is coaxially connected to the first synchronous wheel (7). The second synchronous wheel (8) is rotatably mounted on the far end of the slide bracket (4) through a bearing.

4. The laser-assisted positioning mechanism for spinning according to claim 1, characterized in that, The mounting base (10) and the sliding body (5) have mounting grooves (11) symmetrically distributed at the four corners. The sliding body (5) has mounting holes (12) at corresponding positions, and is rigidly locked by corresponding fasteners.

5. The laser-assisted positioning mechanism for spinning according to claim 1, characterized in that, The bottom of the slide bracket (4) is provided with two parallel fixed seats (6), and each of the two fixed seats (6) is provided with through bolt holes, the axis of which is perpendicular to the moving direction of the slide body (5).

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