A turning device for processing a multidirectional fixing connector

Abstract

The application relates to the technical field of turning processing, and discloses a turning device for processing a multidirectional fixed connecting piece, which comprises a lathe, a basic gypsum filling system and an embedded micro-support structure system integrated on the lathe, and a workpiece clamping mechanism of the lathe is used to stably fix the workpiece to process the multidirectional fixed connecting piece; the basic gypsum filling system comprises a gypsum injection mechanism and a solidification control mechanism; the gypsum injection mechanism is used for injecting gypsum material in a flowing state into the inner cavity of the workpiece; and the solidification control mechanism is used for controlling the local temperature and humidity of the workpiece filling area, so that the gypsum material is solidified according to a predetermined time. The turning device for processing the multidirectional fixed connecting piece effectively solves the problem of local micro-vibration of the multidirectional fixed connecting piece in the turning processing process due to the complex structure by combining the embedded micro-support structure system with the traditional gypsum filling process.

Description

TECHNICAL FIELD

[0001] The application relates to the field of turning processing, in particular to a turning device for processing a multidirectional fixed connecting piece. BACKGROUND

[0002] In cutting processing, the gypsum filling thin-walled workpiece is a special processing method, which is mainly used for solving the problem that the thin-walled workpiece is easy to deform in the processing process. The gypsum filling process is used for enhancing the stability of the multidirectional fixed connecting piece in the turning process, and the support force is provided by relying on the solid characteristics of the gypsum.

[0003] The existing gypsum filling material is of homogeneous structure, and cannot provide differentiated support according to the stiffness requirements of different regions of the workpiece. In the complex structure of the multidirectional fixed connecting piece, some key connecting parts still have micro-vibration, which affects the surface quality of the processing. SUMMARY

[0004] The application provides a turning device for processing a multidirectional fixed connecting piece, which solves the technical problem that in the related art, in the complex structure of the multidirectional fixed connecting piece, some key connecting parts still have micro-vibration, which affects the surface quality of the processing.

[0005] The application provides a turning device for processing a multidirectional fixed connecting piece, which includes a lathe and a basic gypsum filling system and an embedded micro-support structure system integrated on the lathe, and the workpiece is stably fixed by a workpiece clamping mechanism of the lathe to process the multidirectional fixed connecting piece;

[0006] The basic gypsum filling system includes a gypsum injection mechanism and a solidification control mechanism. The gypsum injection mechanism is used for injecting the gypsum material in a flowing state into the inner cavity of the workpiece, and the solidification control mechanism is used for adjusting the local temperature and humidity of the filling area of the workpiece, so that the gypsum material completes solidification according to a predetermined time;

[0007] The embedded micro-support structure system includes a micro-support element, a micro-support structure implanting unit and a workpiece vibration analysis module. The micro-support structure implanting unit places the micro-support element on the key vibration node inside the workpiece, and the workpiece vibration analysis module is used for identifying the position of the key vibration node of the workpiece in the turning process;

[0008] The micro-support element is a prefabricated component, and the element type of the micro-support element includes an axial support type, a radial support type and a multidirectional composite type;

[0009] The axial support type micro-support element is in an elongated columnar shape and is used for bearing and dispersing the longitudinal cutting force;

[0010] The radial support type micro-support element is in a radial or ring structure and is used for resisting the radial cutting force and the torque;

[0011] The multi-directional composite micro support element adopts a grid or honeycomb structure, and can resist cutting force and vibration in multiple directions.

[0012] Further, the micro support structure implantation unit comprises a precise positioning mechanism and a micro support element release mechanism, the precise positioning mechanism comprises a mechanical arm and a three-dimensional displacement platform, the mechanical arm is fixed on the lathe frame, so that the micro support element is rotated to a suitable angular position, the mechanical arm provides fine adjustment in X, Y and Z directions, and the micro support element is moved to a predetermined position according to the vibration analysis result of the workpiece vibration analysis module;

[0013] The micro support element release mechanism adopts a combination of mechanical clamping and pneumatic pushing, and places the micro support element on the key vibration node inside the workpiece.

[0014] Further, the precise positioning mechanism further comprises an optical positioning system, the optical positioning system comprises a high-resolution industrial camera, a structured light projector, an image processing unit and a positioning algorithm module;

[0015] The high-resolution industrial camera adopts a binocular stereo vision design, is equipped with a macro lens, captures fine structural features in the inner cavity of the workpiece, the structured light projector can project a specific coded structured light pattern into the inner cavity of the workpiece to form a three-dimensional space reference mark, the image processing unit processes image data collected by the camera in real time, and the positioning algorithm module calculates the accurate implantation position coordinates of the micro support element based on the structured light triangulation principle and the feature matching algorithm.

[0016] Further, the steps of accurate positioning of the optical positioning system are as follows:

[0017] The structured light projector projects a coded grating pattern into the inner cavity of the workpiece, and the coded grating pattern forms deformed light stripes on the surface of the inner cavity of the workpiece;

[0018] The binocular camera simultaneously captures images of the deformed light stripes from different angles;

[0019] The image processing unit pre-processes the acquired images, including noise filtering, light stripe extraction and code recognition;

[0020] The positioning algorithm module reconstructs a three-dimensional point cloud model of the inner cavity of the workpiece based on the triangulation principle by analyzing the deformation degree and position offset of the light stripes;

[0021] The reconstructed three-dimensional point cloud model is registered with the CAD model of the workpiece, the key node positions determined by the vibration analysis are mapped into the actual workpiece coordinate system, and the accurate implantation position and attitude of the micro support element are calculated.

[0022] Further, the micro-supporting element releasing mechanism is also provided with a quick-curing glue spraying mechanism, the quick-curing glue spraying mechanism comprises a spraying head, a glue tank and a glue pump, the glue pump is connected with the spraying head and the glue tank through a pipeline, the quick-curing glue is pumped out from the glue tank through the glue pump, and a small amount of quick-curing glue is sprayed on the contact point between the micro-supporting element and the inner cavity of the workpiece by the spraying head, so that the micro-supporting element is fixed at the key vibration node position in the inner cavity of the workpiece.

[0023] Further, the workpiece vibration analysis module comprises a vibration signal collection mechanism and a vibration modal analysis system, the vibration signal collection mechanism comprises a high-sensitivity acceleration sensor arranged on the surface of the workpiece, and the vibration data of the workpiece under simulated cutting conditions is collected through the high-sensitivity acceleration sensor.

[0024] The vibration modal analysis system calculates the key node position and vibration characteristics of the micro-vibration of the workpiece in the actual turning process based on the collected vibration data.

[0025] Further, the gypsum injection mechanism comprises a gypsum storage container, a flow control valve, an injection pump and an injection pipeline, the gypsum storage container and the flow control valve are connected through the injection pipeline, and the injection pump is used for accurately injecting the gypsum material in a flow state into the inner cavity of the workpiece.

[0026] Further, the material of the micro-supporting element is a high-rigidity polymer material or a light metal alloy, and the outer surface of the micro-supporting element is provided with a texture structure.

[0027] Further, the workpiece clamping mechanism comprises a clamping jaw group and a positioning pin group, the clamping jaw group is driven by hydraulic pressure to provide clamping force and maintain the clamping state, and the positioning pin group is used for accurately positioning the angle position of the workpiece.

[0028] Further, in order to adapt to multi-directional fixing connectors with different shapes and sizes, the micro-supporting structure implanting unit is provided with replaceable implanting heads, and the implanting heads are quickly adjusted according to the specific shape and size of the inner cavity of the workpiece.

[0029] The beneficial effects of the present application are as follows:

[0030] The turning device for processing the multi-directional fixing connector provided by the present application effectively solves the problem of local micro-vibration of the multi-directional fixing connector in the turning process due to the complex structure by combining the embedded micro-supporting structure system with the traditional gypsum filling process, and has the following technical effects:

[0031] Firstly, the embedded micro-support structure system overcomes the technical bottleneck that traditional homogeneous gypsum filling cannot meet the differentiated support needs. Traditional gypsum filling is a homogeneous structure with uniform stiffness, which cannot provide differentiated support for the special needs of different areas of the workpiece. The present embodiment forms a "skeleton-filler" composite support system by implanting micro-support elements with higher stiffness than gypsum at key vibration nodes, achieving reinforced support of key parts of multi-directional fixed connectors, and specifically solving the problem of local stiffness deficiency leading to micro-vibration.

[0032] Secondly, the precise positioning implantation technology improves the support efficiency. The micro-support structure implantation unit of the present embodiment can accurately place the micro-support elements on the key vibration nodes inside the workpiece through a three-dimensional displacement platform and an optical positioning system, avoiding material waste and maximizing the support effect of the micro-support elements. In particular, the optical positioning system uses structured light three-dimensional reconstruction technology and multi-scale feature matching algorithm to achieve high-precision positioning of ±0.01 mm in complex internal cavity environment, solving the technical difficulty of precise positioning under non-direct vision conditions. The system can adapt to different reflectivity characteristics of the workpiece surface, and through adaptive exposure control technology, it can ensure clear images under various lighting conditions, greatly improving the reliability and adaptability of positioning. The workpiece vibration analysis module can accurately identify key positions that need to be supported by collecting actual vibration data and combining finite element analysis and cutting force prediction, providing a scientific basis for the placement of micro-support elements.

[0033] Thirdly, the diversified design of micro-support elements adapts to the multi-directional support needs of complex workpieces. The present embodiment provides three basic forms of micro-support elements: axial support type, radial support type and multi-directional composite type, which can provide targeted support for different directions of cutting force and vibration characteristics, forming a comprehensive support network. The special texture structure on the outer surface of the micro-support element enhances the bonding strength with the surrounding gypsum material, enabling the entire support system to work cooperatively and further improving the support effect.

[0034] In addition, the present embodiment maintains the convenience and operability of traditional gypsum filling process. The size and number of micro-support elements are relatively small, which does not significantly increase the process complexity and cost. The gypsum material filling and curing process is similar to the traditional process, and the operator does not need additional training to master it. The removal method of the support material is flexible and diverse, which can be selected according to the material properties of the micro-support elements to ensure that the workpiece itself is not damaged.

[0035] Through experimental verification, using the embedded micro-support structure system of the embodiment, the vibration amplitude of the key connection part of the multi-directional fixed connecting piece is significantly reduced under the condition of high-speed precision turning, the surface roughness is reduced by more than 30%, and the machining precision is improved by more than 40%, effectively improving the machining quality and efficiency of the multi-directional fixed connecting piece, and providing reliable process guarantee for the turning machining of the high-precision multi-directional fixed connecting piece. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a structural schematic diagram of a turning device for machining a multi-directional fixed connecting piece provided by the present application;

[0037] Figure 2 is a structural schematic diagram of a micro-support element of the present application Figure 1 is a connection structure schematic diagram of an embedded micro-support structure system and a basic gypsum filling system in the present application;

[0038] Figure 3 is a clamping structure schematic diagram of a micro-support element of the present application;

[0039] Figure 4 is a multi-type structure schematic diagram of a micro-support element of the present application.

[0040] In the figure: 100, lathe; 110, workpiece clamping mechanism; 200, micro-support structure implantation unit; 210, mechanical arm; 211, clamping jaw group; 220, three-dimensional displacement platform; 230, high-resolution industrial camera; 300, micro-support element; 310, multi-directional composite micro-support element; 320, radial support type micro-support element; 330, axial support type micro-support element; 400, gypsum injection mechanism; 410, gypsum storage container; 420, flow control valve; 430, injection pump; 440, injection pipeline; 500, quick curing glue spraying mechanism; 510, glue pump; 520, glue tank; 530, spraying head. DETAILED DESCRIPTION

[0041] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that the discussion of these implementations is merely meant to provide a better understanding of the subject matter described herein and can be changed in function and arrangement without departing from the scope of the present description. Each of the various examples can omit, substitute or add various procedures or components as appropriate. In addition, features described in relation to some examples can also be combined in other examples.

[0042] As shown in Figures 1-4 A turning device for machining a multi-directional fixed connecting piece, including a lathe 100 and two parts of a basic gypsum filling system and an embedded micro-support structure system integrated on the lathe 100;

[0043] The basic gypsum filling system includes a gypsum injection mechanism 400 and a solidification control mechanism; the gypsum injection mechanism 400 includes a gypsum storage container 410, a flow control valve 420, an injection pump 430, and an injection pipeline 440 connecting the gypsum storage container 410 and the injection pump 430, and the injection pump 430 is used to accurately inject the gypsum material in a flowing state into the inner cavity of the workpiece;

[0044] The solidification control mechanism is used for local temperature and humidity regulation of the filling area of the workpiece, and the temperature and humidity are matched through a sealed cavity or a directional temperature control nozzle to ensure that the gypsum material completes the solidification process according to the predetermined time.

[0045] The workpiece clamping adopts a workpiece clamping mechanism 110 of a lathe 100, wherein the workpiece clamping mechanism 110 of the lathe 100 includes a jaw group 211 and a positioning pin group, the jaw group 211 provides clamping force by a hydraulic drive device and maintains the clamping state, and the positioning pin group ensures accurate positioning of the angle position of the workpiece, and is used together to stably fix the workpiece and ensure that the workpiece does not displace during the filling process;

[0046] The embedded micro-support structure system includes a micro-support element 300, a micro-support structure implantation unit 200, and a workpiece vibration analysis module;

[0047] The micro-support element 300 is a prefabricated component made of an engineering material with higher rigidity than gypsum, and the shape design follows the mechanical optimization principle, mainly including three basic forms of an axial support type micro-support element 330, a radial support type micro-support element 320, and a multi-directional composite type micro-support element 310;

[0048] The axial support type micro-support element 330 is in the form of an elongated column, and is mainly used for bearing and dispersing longitudinal cutting force;

[0049] The radial support type micro-support element 320 is in the form of a radial or ring structure, and is mainly used for resisting radial cutting force and torque;

[0050] The multi-directional composite type micro-support element 310 adopts a grid or honeycomb structure, and can resist cutting force and vibration in multiple directions at the same time;

[0051] The micro-support structure implantation unit 200 includes a precise positioning mechanism and a micro-support element 300 release mechanism;

[0052] The precise positioning mechanism is composed of a mechanical arm 210, a three-dimensional displacement platform 220, and an optical positioning system. The mechanical arm 210 is fixed on the lathe 100 rack and can move along the lathe 100 spindle direction. The rotation of the lathe 100 spindle rotates the workpiece to the appropriate angular position. The three-dimensional displacement platform 220 on the mechanical arm 210 provides fine X, Y, Z three-direction fine tuning capability. This combined motion mode can accurately move the micro-supporting element 300 to the predetermined position according to the workpiece vibration analysis results.

[0053] The micro-supporting element 300 release mechanism adopts a combination of mechanical clamping and pneumatic pushing, which can accurately place the micro-supporting element 300 on the key vibration node inside the workpiece.

[0054] The optical positioning system is the core component of the precise positioning mechanism, and its structure mainly includes a high-resolution industrial camera 230, a structured light projector, an image processing unit, and a positioning algorithm module.

[0055] The high-resolution industrial camera 230 adopts a binocular stereo vision design and is equipped with a macro lens, which can capture the fine structure features of the workpiece inner cavity. The structured light projector can project a specific coded structured light pattern into the workpiece inner cavity to form a three-dimensional space reference mark. The image processing unit uses a high-performance image processing chip to process image data collected by the camera in real time. The positioning algorithm module calculates the precise implantation position coordinates of the micro-supporting element 300 based on the structured light triangulation principle and feature matching algorithm.

[0056] The working principle of the optical positioning system is based on structured light three-dimensional reconstruction technology. First, the structured light projector projects a coded grating pattern into the workpiece inner cavity, which forms deformed light stripes on the surface of the workpiece inner cavity. Then, the binocular camera captures images of these deformed light stripes from different angles at the same time. Next, the image processing unit preprocesses the acquired images, including noise filtering, light stripe extraction, and code recognition. Subsequently, the positioning algorithm module analyzes the deformation degree and position offset of the light stripes based on the triangulation principle to reconstruct a three-dimensional point cloud model of the workpiece inner cavity. Finally, the reconstructed three-dimensional point cloud model is registered with the workpiece CAD model, and the key node position determined by vibration analysis is mapped into the actual workpiece coordinate system to calculate the precise implantation position and attitude of the micro-supporting element 300.

[0057] To improve the positioning accuracy, the optical positioning system also adopts adaptive exposure control technology and multi-scale feature matching algorithm. The adaptive exposure control technology can automatically adjust the camera parameters according to the reflection characteristics of the workpiece inner cavity, ensuring that clear images can be obtained under different reflection conditions; the multi-scale feature matching algorithm effectively solves the matching difficulty problem caused by changes in viewing angle and partial occlusion by performing feature matching at different resolution levels, improving the robustness of positioning. The positioning accuracy of the system can reach ±0.01 mm, meeting the requirements of precise implantation of micro-supporting elements 300.

[0058] In some embodiments, to ensure that the micro-supporting element 300 does not displace after being placed, the micro-supporting element 300 release mechanism is also provided with a quick-curing glue spraying mechanism 500, which includes a spraying head 530, a glue tank 520, and a glue pump 510. The glue pump 510 connects the spraying head 530 and the glue tank 520 through a pipeline. After the micro-supporting element 300 is pushed into place by pneumatic pushing, the quick-curing glue is pumped out from the glue tank 520 by the glue pump 510, and the spraying head 530 automatically sprays a small amount of quick-curing glue on the contact point between the micro-supporting element 300 and the workpiece inner cavity, so that the micro-supporting element 300 is fixed at the critical vibration node position of the workpiece inner cavity, ensuring that the micro-supporting element 300 remains stable during the subsequent plaster filling process. After the micro-supporting element 300 is fixed, the entire release mechanism is quickly withdrawn, without affecting the subsequent plaster filling process.

[0059] The workpiece vibration analysis module includes a vibration signal collection mechanism and a vibration modal analysis system. The vibration signal collection mechanism collects vibration data of the workpiece under simulated cutting conditions through high-sensitivity acceleration sensors arranged on the surface of the workpiece. The vibration modal analysis system calculates the critical node positions and vibration characteristics of the workpiece that may appear during actual turning based on the collected vibration signals and in combination with the finite element analysis method, providing accurate basis for the selection and placement of the micro-supporting element 300.

[0060] In some embodiments, the material of the micro-supporting element 300 is a high-rigidity polymer material, which has a high elastic modulus and a small density, and can provide sufficient support strength without significantly increasing the overall weight of the workpiece.

[0061] In some embodiments, the material of the micro-supporting element 300 is a lightweight metal alloy, such as aluminum alloy or titanium alloy, which has higher rigidity and strength, and is suitable for precise turning working conditions that require extremely high precision.

[0062] In some embodiments, to improve the overall synergy of the support system, the outer surface of the micro-supporting element 300 is designed with a special texture structure that can enhance the bonding strength with the surrounding plaster material, forming a more robust composite support system.

[0063] In some embodiments, in order to adapt to different shapes and sizes of multi-directional fixed connectors, the micro support structure implant unit 200 is equipped with replaceable implant heads, which can be quickly adjusted according to the specific shape and size of the workpiece inner cavity, improving adaptability and work efficiency.

[0064] In some embodiments, in order to improve the accuracy of vibration analysis, the workpiece vibration analysis module further includes a cutting force prediction unit, which can predict the size and direction of cutting force that may be generated at each position during turning based on workpiece material properties, cutting parameters and tool geometry, and more accurately determine the key support point position in combination with the vibration signal analysis result.

[0065] Based on the above turning device, the multi-directional fixed connector machining turning device provided by the embodiment mainly performs the following steps:

[0066] S1: Workpiece preparation and analysis. Install the multi-directional fixed connector on the vibration test platform, start the vibration signal acquisition mechanism, and simulate the cutting conditions under actual turning conditions. The vibration signal acquisition mechanism collects vibration data of the workpiece under different cutting parameters through high-sensitivity acceleration sensors, and transmits the data to the vibration modal analysis system.

[0067] S2: Key vibration node identification. The vibration modal analysis system processes the collected vibration signal data in combination with the finite element analysis method to calculate the key node positions and vibration characteristics of the workpiece that may occur during turning. At the same time, the cutting force prediction unit predicts the size and direction of the cutting force that may be generated at each position based on the workpiece material properties, cutting parameters and tool geometry. By comprehensively analyzing the vibration mode and cutting force distribution, the key positions that need to be supported are determined.

[0068] In one embodiment, the data analysis and processing flow of the vibration signal data is as follows:

[0069] The data analysis and processing in the embodiment mainly targets the vibration data and cutting force data in the multi-directional fixed connector machining process, and provides a scientific basis for the accurate placement of the micro support element 300. Specifically, the following steps are included:

[0070] S2-1: Collect workpiece vibration signal data. Collect time-domain vibration signals of the workpiece under simulated turning conditions at multiple preset sampling points through high-sensitivity acceleration sensors, with a sampling frequency of 20 kHz to ensure that high-frequency micro-vibration characteristics can be captured.

[0071] S2-2: Process vibration raw data and eliminate noise interference. Use wavelet transform algorithm to process the collected raw vibration signal, extract effective vibration characteristics, and eliminate interference signals introduced by the environment and the device itself.

[0072] S2-3: Calculate the vibration frequency spectrum characteristics. Perform a fast Fourier transform (FFT) on the denoised vibration signal to convert the time-domain signal to a frequency-domain signal, generate a frequency spectrum characteristic curve for each sampling point, and determine the main vibration frequency and amplitude.

[0073] S2-4: Analyze the vibration modal distribution. Based on the frequency domain data, use a modal analysis algorithm to calculate the vibration mode distribution of the workpiece at different frequencies, identify the region with concentrated vibration energy, and generate a three-dimensional vibration modal distribution map.

[0074] S2-5: Calculate the key vibration node position of the workpiece. According to the vibration modal distribution data, use a peak detection algorithm to locate the point coordinates with the maximum vibration amplitude, and determine the key vibration node position that needs to be supported.

[0075] Wherein, the calculation of vibration amplitude adopts the following method: the amplitudes of each measurement point at different frequencies are weighted and summed according to the frequency importance to form a comprehensive amplitude value. The frequency importance weight is proportional to the excitation probability of the frequency in the actual turning process.

[0076] S2-6: Predict the turning force distribution. Based on the workpiece material parameters, tool geometry parameters and turning process parameters, use the modified cutting force prediction model to calculate the three-dimensional cutting force distribution in the turning process.

[0077] In the embodiments of the present application, in order to improve the prediction accuracy of cutting force, the cutting force prediction model uses a modified equation that considers the nonlinear factors of the material:

[0078] ;

[0079] Wherein, is the main cutting force, is the cutting coefficient, is the cutting depth, is the feed rate, is the cutting speed, and are the influence indexes of the feed rate and the cutting speed, is the workpiece curvature influence function.

[0080] S2-7: Calculate the comprehensive support demand index. Fuse the vibration node data and the cutting force distribution data, and assign a support demand index to each region in the workpiece by establishing a vibration-cutting force comprehensive evaluation function. The higher the index, the more urgent the demand for micro support in that region.

[0081] The formula for calculating the comprehensive support demand index is:

[0082] ;

[0083] Wherein, For the region The supporting demand index The vibration amplitude in this region. The magnitude of the cutting force in this region. This is the distance from the area to the nearest support point. , , These are weighting coefficients, which are adjusted according to different workpiece characteristics and processing requirements.

[0084] S2-8: Optimize the layout scheme of micro-support element 300. Based on the support demand index and the geometric constraints of the workpiece cavity, an improved particle swarm optimization algorithm is used to generate the optimal layout scheme of micro-support element 300, including the support point position, support element type and size parameters.

[0085] In this embodiment of the application, in order to improve optimization efficiency, a hierarchical optimization strategy is adopted. First, the location of key support points is determined, and then the parameters of the micro support element 300 at each support point are optimized, which greatly reduces the computational complexity.

[0086] S2-9: Generate micro-support implantation path planning. Based on the optimized layout scheme and the structural features of the workpiece cavity, calculate the implantation path of each micro-support element 300 to ensure that the implantation process does not interfere with other implanted micro-support elements 300 and avoids collision with the inner wall of the workpiece.

[0087] S2-10: Evaluation of Support Effect Prediction Data. By establishing a finite element model containing micro-support elements 300 and gypsum filler material, the turning process is simulated, the dynamic response characteristics of the workpiece after adding the support are calculated, the machining accuracy and surface quality are predicted, and the effectiveness of the support scheme is evaluated.

[0088] In some embodiments, in order to adapt to individual differences in different batches of workpieces, this embodiment also establishes an adaptive data processing mechanism. By comparing the vibration characteristics differences between the current workpiece and similar workpieces in the historical database, the parameters of the data analysis model are dynamically adjusted to improve the accuracy and adaptability of the analysis results.

[0089] In some embodiments, in order to improve the real-time performance of data analysis, this implementation adopts a parallel computing architecture, which distributes computationally intensive tasks such as vibration modal analysis, cutting force prediction and support optimization to multiple processing units to be performed simultaneously, which greatly shortens the data processing time and meets the production efficiency requirements.

[0090] S3: Micro-support element 300 selection and preparation. According to the location and vibration characteristics of the key vibration nodes, select the appropriate micro-support element 300 type (axial support type micro-support element 330, radial support type micro-support element 320 or multi-directional composite type micro-support element 310) and size. If the existing micro-support element 300 cannot fully meet the requirements, customize the micro-support element 300 of special shape according to the specific requirements. The selected micro-support element 300 is subjected to necessary pretreatment to ensure that its surface is clean and has good bonding performance.

[0091] S4: Workpiece fixation and implant preparation. The multi-directional fixation connector is fixed through the adjustable clamping jaw and positioning pin on the workpiece clamping mechanism 110 of the lathe 100, the clamping jaw provides continuous stable clamping force through the hydraulic drive device, and the positioning pin ensures the accurate positioning of the angle position of the workpiece, together ensuring that the workpiece will not be displaced in the subsequent operation. According to the shape and size of the workpiece inner cavity, select the appropriate implant head and install it on the micro-support structure implant unit 200, and calibrate it.

[0092] S5: Precise implantation of micro-support element 300. Start the micro-support structure implant unit 200, and move through the mechanical arm 210 of the precise positioning mechanism in cooperation with the rotation of the lathe 100 spindle. Specifically, the mechanical arm 210 is fixed on the lathe 100 rack and can move along the direction of the lathe 100 spindle, while the rotation of the lathe 100 spindle makes the workpiece rotate to the appropriate angle position, and the three-dimensional displacement platform 220 on the mechanical arm 210 provides fine tuning ability in X, Y, Z three directions. Under the guidance of the optical positioning system, this combined motion mode can accurately move the implant device to the predetermined key vibration node position. Specifically, the operation process of the optical positioning system includes: first, activate the structured light projector to project the coded grating pattern to the workpiece inner cavity; second, start the binocular industrial camera to capture the deformed light stripe image of the workpiece inner cavity surface from different angles at the same time; then, the image processing unit processes the acquired image in real time, including noise filtering, light stripe extraction and code recognition; next, the positioning algorithm module reconstructs the three-dimensional point cloud model of the workpiece inner cavity based on the triangulation principle, and performs registration with the workpiece CAD model; finally, the system maps the key node position determined by vibration analysis to the actual workpiece coordinate system, calculates the precise implantation position and attitude of the micro-support element 300, and transmits these coordinate data to the three-dimensional displacement platform 220 to guide the precise movement of the implant device.

[0093] After the optical positioning is completed, the micro-supporting element 300 release mechanism uses mechanical clamping to send the micro-supporting element 300 to the target position, and then uses a pneumatic pushing mechanism to accurately push the micro-supporting element 300 into place, while activating the rapid curing glue spraying mechanism 500 to spray a small amount of rapid curing glue on the contact point between the micro-supporting element 300 and the inner cavity of the workpiece to achieve fixation. The clamping is maintained until the glue is initially cured (≥5 seconds), and then the release mechanism withdraws the clamping mechanical arm 210, quickly removing it without interfering with subsequent implantation operations and plaster filling processes. Repeat this operation for each critical vibration node until all positions requiring support have completed the implantation of the micro-supporting element 300.

[0094] S6: Plaster material filling. Start the plaster injection mechanism 400, and accurately inject the pre-prepared flowable plaster material into the inner cavity of the multidirectional fixed connector through the flow control valve 420 and the injection pipeline 440. During the injection process, the plaster material gradually fills the entire inner cavity of the workpiece, surrounding the implanted micro-supporting element 300, forming a continuous support medium. The injection speed and pressure are precisely controlled to avoid air bubble generation and ensure uniform filling.

[0095] S7: Plaster curing and maintenance. Start the curing control mechanism to adjust the environmental temperature and humidity to the optimal curing conditions. The plaster material gradually cures under controlled environment, forming an integral composite support system with the micro-supporting element 300. The curing process needs to continue for a certain period of time to ensure that the plaster material reaches sufficient strength and stability.

[0096] S8: Turning preparation. After curing is completed, set the turning parameters according to the process requirements, including spindle speed, feed rate, cutting depth, etc. There is no need to re-install the workpiece, as the workpiece has already been fixed on the workpiece clamping mechanism 110 of the lathe 100.

[0097] S9: Precision turning. Start the lathe 100 for turning, and the lathe 100 spindle drives the workpiece to rotate. During the machining process, the implanted micro-supporting element 300 provides high-rigidity local support at the critical vibration nodes, effectively suppressing the generation of micro-vibration, while the surrounding plaster filling provides overall stability, together ensuring machining precision and surface quality.

[0098] S10: Support material removal. After turning is completed, the workpiece is still fixed on the workpiece clamping mechanism 110 of the lathe 100. First, inject a plaster dissolving agent (such as "10% citric acid solution") into the inner cavity of the workpiece through the pre-prepared discharge hole to dissolve the plaster filling material and make it flow out of the discharge hole. Then, according to the material properties of the micro-supporting element 300, use a specific solvent to dissolve the micro-supporting element 300 made of polymer material, or use electrolysis or ultrasonic vibration to separate the micro-supporting element 300 made of metal material from the inner wall and then take it out of the inner cavity of the workpiece, ensuring that the workpiece itself is not damaged during the removal process.

[0099] S11: Quality detection and evaluation. After the support material removal is completed, the multi-directional fixing connector is removed from the workpiece clamping mechanism 110 of the lathe 100, the precision and surface quality of the processed multi-directional fixing connector are detected, the support effect of the embedded micro support structure system is evaluated, and the related data are recorded for subsequent process optimization.

[0100] The above describes the embodiments of the present application, but the present application is not limited to the above specific embodiments, and the above specific embodiments are only illustrative but not restrictive, and those skilled in the art can make many forms under the inspiration of the present application, which all belong to the protection of the present application.

Claims

1. A turning apparatus for machining multi-directional fixed connectors, characterized in that, The lathe comprises a lathe and a basic gypsum filling system and an embedded micro-support structure system integrated in the lathe, a workpiece is stably fixed by a workpiece clamping mechanism of the lathe to process a multidirectional fixed connector; The basic gypsum filling system comprises a gypsum injection mechanism and a solidification control mechanism, the gypsum injection mechanism is used for injecting a gypsum material in a flowing state into an inner cavity of the workpiece, and the solidification control mechanism is used for adjusting local temperature and humidity of a filling area of the workpiece to make the gypsum material complete solidification according to a predetermined time; The embedded micro-support structure system comprises a micro-support element, a micro-support structure implanting unit and a workpiece vibration analysis module, the micro-support structure implanting unit places the micro-support element on a key vibration node inside the workpiece, and the workpiece vibration analysis module is used for identifying a key vibration node position of the workpiece in a turning process; The micro-support element is a prefabricated component, and element types of the micro-support element include an axial support type, a radial support type and a multidirectional composite type; The axial support type micro-support element is in an elongated columnar shape and is used for bearing and dispersing longitudinal cutting force; The radial support type micro-support element is in a radial or ring structure and is used for resisting radial cutting force and torque; and the multidirectional composite type micro-support element adopts a grid or honeycomb structure and simultaneously resists cutting force and vibration in multiple directions.

2. A turning device for machining a multi-directional fixing connector according to claim 1, characterized in that, The micro-support structure implanting unit comprises a precise positioning mechanism and a micro-support element releasing mechanism, the precise positioning mechanism comprises a mechanical arm and a three-dimensional displacement platform, the mechanical arm is fixed on a lathe frame, the micro-support element is rotated to a suitable angle position, the mechanical arm provides fine adjustment in X, Y and Z directions, and the micro-support element is moved to a predetermined position according to vibration analysis results of the workpiece vibration analysis module; The micro-support element releasing mechanism adopts a combination of mechanical clamping and pneumatic pushing to place the micro-support element on the key vibration node inside the workpiece.

3. The turning device for machining a multi-directional fixed connection according to claim 2, characterized in that The precise positioning mechanism further comprises an optical positioning system, the optical positioning system comprises a high-resolution industrial camera, a structured light projector, an image processing unit and a positioning algorithm module; The high-resolution industrial camera adopts a binocular stereo vision design and is equipped with a macro lens, captures fine structure features of the inner cavity of the workpiece, the structured light projector can project a specific coded structured light pattern to the inner cavity of the workpiece to form a three-dimensional space reference mark, the image processing unit processes image data collected by the camera in real time, and the positioning algorithm module calculates accurate implantation position coordinates of the micro-support element based on a structured light triangulation principle and a feature matching algorithm.

4. The turning device for machining a multi-directional fixed connection according to claim 3, characterized in that The accurate positioning steps of the optical positioning system are as follows: The structured light projector projects a coded grating pattern to the inner cavity of the workpiece, and the coded grating pattern forms deformed light fringes on the surface of the inner cavity of the workpiece; The binocular camera simultaneously captures images of the deformed light fringes from different angles; The image processing unit pre-processes the acquired images, including noise filtering, light fringe extraction and code identification; The positioning algorithm module reconstructs a three-dimensional point cloud model of the inner cavity of the workpiece based on the triangulation principle by analyzing the deformation degree and position offset of the light fringes. The reconstructed three-dimensional point cloud model is registered with the workpiece CAD model, and the key node positions determined by the vibration analysis are mapped into the actual workpiece coordinate system to calculate the precise implantation position and posture of the micro-supporting element.

5. A turning device for machining a multi-directional fixation link according to claim 4, characterized in that The micro-supporting element release mechanism is also provided with a quick-curing glue spraying mechanism, which includes a spraying head, a glue tank and a glue pump. The glue pump connects the spraying head and the glue tank through a pipeline, and pumps the curing glue out of the glue tank. The spraying head automatically sprays a small amount of quick-curing glue on the contact point between the micro-supporting element and the inner cavity of the workpiece, so that the micro-supporting element is fixed at the key vibration node position in the inner cavity of the workpiece.

6. A turning device for machining a multi-directional fixation link according to claim 5, characterized in that The workpiece vibration analysis module includes a vibration signal acquisition mechanism and a vibration modal analysis system. The vibration signal acquisition mechanism includes a high-sensitivity acceleration sensor arranged on the surface of the workpiece. The high-sensitivity acceleration sensor collects vibration data of the workpiece under simulated cutting conditions. The vibration modal analysis system calculates the key node position and vibration characteristics of the workpiece during actual turning based on the collected vibration data.

7. A turning device for machining a multi-directional fixing connector according to claim 6, characterized in that The gypsum injection mechanism includes a gypsum storage container, a flow control valve, an injection pump and an injection pipeline. The gypsum storage container and the flow control valve are connected by the injection pipeline, and the injection pump is used to accurately inject the flowing gypsum material into the inner cavity of the workpiece.

8. The turning device for machining a multi-directional fixed connection according to claim 7, characterized in that The material of the micro-supporting element is a high-rigidity polymer material or a light metal alloy, and the outer surface of the micro-supporting element is provided with a texture structure.

9. The turning device for machining a multi-directional fixed connection according to claim 8, characterized in that The workpiece clamping mechanism includes a jaw group and a positioning pin group. The jaw group is driven by hydraulic pressure to provide clamping force and maintain the clamped state. The positioning pin group is used for precise positioning of the angular position of the workpiece.

10. The turning device for machining a multi-directional fixed connection according to claim 9, characterized in that To adapt to multi-directional fixing connectors of different shapes and sizes, the micro-supporting structure implantation unit is equipped with replaceable implantation heads for quick adjustment according to the specific shape and size of the inner cavity of the workpiece.

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