Multipurpose long-strip-shaped high-speed linear rail turning and milling combined machining center

Abstract

The invention relates to the technical field of turning and milling machining, in particular to a multipurpose long-strip-shaped high-speed linear rail turning and milling combined machining center which comprises a data acquisition module, a data processing module and a data processing module. The data analysis module is used for determining the machining mode of the machined part based on the thermal diffusion rate; the data processing module is used for determining whether buffer areas are added to different segments or not based on the overlapping degree of the heat affected areas of the machined parts of the different segments; the data adjusting module is used for determining an adjusting mode according to a difference value between the micro-deformation characterization parameter and a preset micro-deformation characterization parameter; the material analysis module is used for determining the qualification of the heat distribution of the adjusted workpiece based on the heat conduction uniformity evaluation value of the workpiece; and the data optimization module is used for determining an optimization mode according to a ratio of the heat conduction uniformity evaluation value to a preset heat conduction uniformity evaluation value. The machining efficiency of the turning and milling combined machining center for the long-strip-shaped high-speed linear rail is improved.

Description

Technical Field

[0001] The invention relates to the technical field of turning and milling processing, and in particular to a multi-purpose long high-speed linear rail turning and milling compound processing center. Background Art

[0002] With the continuous development of modern manufacturing, especially in the fields of aerospace, automobile manufacturing, precision machining, etc., higher and higher requirements are put forward for the machining accuracy and efficiency of parts. These industries often need to process parts with complex shapes, and have extremely strict requirements on precision indicators such as dimensional tolerance and form and position tolerance. Traditional single-function processing equipment can no longer meet these requirements, which has prompted the development of composite processing technology, which can integrate multiple processing technologies on one device, reduce the number of clamping times, and improve processing accuracy and efficiency.

[0003] Chinese patent application publication number: CN106938395A discloses a novel double-column milling and turning composite machining center, comprising: a base and an R-shaped vertical spindle column, a horizontal spindle column, an X-axis guide rail, a vertical spindle tool magazine, and a horizontal spindle tool magazine fixedly mounted on the base, the X-axis guide rail is located between the vertical spindle column and the horizontal spindle column, the line connecting the vertical spindle column and the horizontal spindle column intersects with the X-axis guide rail in a cross shape, the vertical spindle tool magazine and the horizontal spindle tool magazine are located on the same side of the line connecting the vertical spindle column and the horizontal spindle column, a rectangular frame-type ram with an internal hollow space that can slide up and down is connected to the horizontal end of the vertical spindle column, a vertical spindle motor is detachably installed in the ram, a saddle that can move along the X-axis guide rail is provided on the X-axis guide rail, a Y / hZ axis guide rail is provided on the saddle, a turntable is provided above the Y / hZ axis guide rail, a DD motor is connected to the turntable, and a workbench is provided on the turntable. However, the prior art has the following problems: the prior art does not conduct a detailed analysis of heat diffusion during the machining process, resulting in low machining accuracy, thereby causing the problem of low machining efficiency of the long high-speed linear rail turning and milling composite machining center. Summary of the invention

[0004] To this end, the present invention provides a multi-purpose long high-speed linear rail turning and milling compound machining center to overcome the problem in the prior art that no detailed analysis is performed on heat diffusion during machining, resulting in low machining accuracy and thus low machining efficiency of the long high-speed linear rail turning and milling compound machining center.

[0005] To achieve the above object, the present invention provides a multi-purpose long high-speed linear rail turning and milling compound machining center, comprising:

[0006] A data acquisition module, which is used to acquire monitoring data of the workpiece during the machining process of the turning-milling composite machining center, including temperature image data and material image data;

[0007] A data analysis module connected to the data acquisition module is used to determine whether the processing mode of the workpiece is continuous processing or segmented processing based on the heat diffusion rate of the heat at the contact point between the tool head and the workpiece in the workpiece;

[0008] A data processing module, which is connected to the data analysis module, is used to determine whether to add buffer zones in different sections based on the overlap of heat-affected zones of the workpieces in different sections, and to determine the eligibility of the workpieces after processing based on the micro-deformation characterization parameters of the workpieces after processing;

[0009] A data adjustment module, connected to the data processing module, for determining, based on the condition that the processed workpiece is unqualified after the processing, to preheat the workpiece at a preset temperature or to increase the cutting fluid injection rate at a preset injection rate adjustment coefficient according to the difference between the micro-deformation characterization parameter and the preset micro-deformation characterization parameter;

[0010] A material analysis module, which is connected to the data acquisition module and the data adjustment module respectively, and is used to determine the eligibility of the heat distribution of the workpiece after adjustment based on the thermal conductivity uniformity evaluation value of the workpiece;

[0011] A data optimization module is connected to the material analysis module and is used to determine whether to increase the cutting depth by a cutting depth adjustment coefficient or to increase the feed speed by a feed speed adjustment coefficient based on the ratio of the thermal conductivity uniformity evaluation value to the preset thermal conductivity uniformity evaluation value under the condition that the heat distribution of the workpiece after the adjustment is unqualified.

[0012] Furthermore, the data analysis module determines that the processing mode of the workpiece is continuous processing based on a comparison result that a thermal diffusion rate of heat at a contact point between a tool head and the workpiece in the workpiece is less than or equal to a thermal diffusion rate threshold.

[0013] Furthermore, the data analysis module determines that the processing method of the workpiece is segmented processing based on a comparison result that a thermal diffusion rate of heat at a contact point between a tool head and the workpiece in the workpiece is greater than a thermal diffusion rate threshold.

[0014] Furthermore, the data processing module, under the condition that the processing method of the workpiece is segmented processing, determines that buffer zones need to be added in different segments based on the comparison result that the overlap of heat-affected zones of workpieces in different segments is greater than a preset overlap of heat-affected zones.

[0015] Furthermore, the data processing module determines that the processed part is unqualified based on a comparison result that the micro-deformation characterization parameter of the processed part is greater than a preset micro-deformation characterization parameter under the condition of determining the processing mode.

[0016] Furthermore, the data adjustment module determines to preheat the workpiece at a preset temperature based on a comparison result that the difference between the micro-deformation characterization parameter and a preset micro-deformation characterization parameter is less than or equal to a preset difference, under the condition that the workpiece is determined to be unqualified after processing.

[0017] Furthermore, the data adjustment module determines to increase the cutting fluid injection rate by a preset injection rate adjustment coefficient based on a comparison result that the difference between the micro-deformation characterization parameter and the preset micro-deformation characterization parameter is greater than the preset difference, under the condition that the processed workpiece is determined to be unqualified after processing.

[0018] Furthermore, the material analysis module determines that the heat distribution of the workpiece after adjustment is unqualified based on a comparison result that the thermal conductivity uniformity evaluation value of the workpiece is less than or equal to a preset thermal conductivity uniformity evaluation value, under the condition of determining an adjustment method for the workpiece processing process.

[0019] Furthermore, the data optimization module determines to reduce the cutting depth by a preset cutting depth adjustment coefficient based on a comparison result that the ratio of the thermal conductivity uniformity evaluation value to the preset thermal conductivity uniformity evaluation value is less than or equal to a preset ratio, under the condition that it is determined that the heat distribution of the workpiece after adjustment is unqualified.

[0020] Furthermore, the data optimization module determines to reduce the feed speed by a preset feed speed adjustment coefficient based on a comparison result that the ratio of the thermal conductivity uniformity evaluation value to the preset thermal conductivity uniformity evaluation value is greater than a preset ratio, under the condition that the heat distribution of the workpiece after adjustment is unqualified.

[0021] Compared with the prior art, the beneficial effects of the present invention are that the present invention determines the processing mode through a data analysis module, judges the processing mode according to the heat diffusion rate, improves the processing efficiency and the surface quality of the workpiece, the data processing module determines the buffer zone and the qualification of the workpiece after processing, the data adjustment module preheats or adjusts the cutting fluid injection rate according to the unqualified situation, reduces the micro-deformation of the workpiece by adding a buffer zone and adjusting the cutting fluid injection rate, and improves the qualification rate of the workpiece, the material analysis module evaluates the qualification of the heat distribution of the workpiece after adjustment, the data optimization module optimizes the unqualified situation, monitors the temperature of the workpiece in real time, controls the processing process, effectively reduces the influence of heat diffusion on the processing accuracy, and thus improves the processing efficiency of the long high-speed linear rail turning and milling compound machining center.

[0022] Furthermore, the present invention selects continuous or segmented processing by comparing the heat diffusion rate of the contact point between the tool head and the workpiece with the heat diffusion rate threshold, thereby avoiding overheating and excessive heat-affected area, thereby improving processing accuracy and workpiece quality.

[0023] Furthermore, the present invention determines whether to add a buffer zone by comparing the overlap of the heat-affected zone with the preset overlap of the heat-affected zone, thereby avoiding processing errors and workpiece deformation caused by excessive overlap of the heat-affected zone and improving the accuracy and stability of the processed parts.

[0024] Furthermore, the present invention determines the qualification of the workpiece through micro-deformation characterization parameters and decides to use preheating or increase the cutting fluid injection rate to adjust the processing process according to the difference between the micro-deformation characterization parameters and the preset micro-deformation characterization parameters, accurately identifies the deformation of the workpiece, and adjusts the processing parameters in a targeted manner to improve the quality of the workpiece and the overall processing efficiency.

[0025] Furthermore, the present invention optimizes the machining process by evaluating the eligibility of the heat distribution of the workpiece after adjustment, and optimizing the cutting depth or feed speed according to the ratio of the thermal conductivity uniformity evaluation value to the preset thermal conductivity uniformity evaluation value when it is unqualified, and adjusting the cutting parameters to ensure uniform heat distribution of the workpiece, thereby improving the machining accuracy and efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of module connection of a multi-purpose long high-speed linear rail turning and milling compound machining center according to an embodiment of the present invention;

[0027] Figure 2 A flow chart for determining a processing method for a workpiece according to an embodiment of the present invention;

[0028] Figure 3 A flow chart for determining the eligibility of a workpiece after processing according to an embodiment of the present invention;

[0029] Figure 4 A flow chart for determining the eligibility of heat distribution of a workpiece after adjustment according to an embodiment of the present invention;

[0030] Figure 5 It is an axonometric view of a multi-purpose long high-speed linear rail turning and milling compound machining center according to an embodiment of the present invention;

[0031] In the figure, 1, base; 201, column; 202, column slide; 3, hydraulic rod; 4, motor; 501, beam; 502, beam slide; 6, saddle; 7, tool head; 8, infrared thermal imager; 9, industrial camera. DETAILED DESCRIPTION

[0032] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0034] It should be pointed out that the data in this embodiment are obtained by comprehensive analysis and evaluation of the historical test data and the corresponding historical test results of the present invention in the three months before this test. It can be understood by those skilled in the art that the present invention can determine the above parameters for a single item by selecting the highest proportion of values ​​as the preset standard parameters according to the data distribution, using weighted summation to use the obtained values ​​as the preset standard parameters, substituting each historical data into a specific formula and using the values ​​obtained by the formula as the preset standard parameters or other selection methods, as long as the present invention can clearly define different specific situations in the single determination process through the obtained values.

[0035] See also Figure 1-Figure 5 As shown, Figure 1 This is a schematic diagram of module connection of a multi-purpose long high-speed linear rail turning and milling compound machining center according to an embodiment of the present invention; Figure 2 A flow chart for determining a processing method for a workpiece according to an embodiment of the present invention; Figure 3 A flow chart for determining the eligibility of a workpiece after processing according to an embodiment of the present invention; Figure 4 A flow chart for determining the eligibility of heat distribution of a workpiece after adjustment according to an embodiment of the present invention; Figure 5 It is an axonometric view of a multi-purpose long high-speed linear rail turning and milling compound machining center according to an embodiment of the present invention.

[0036] The multi-purpose long high-speed linear rail turning and milling compound machining center of the embodiment of the present invention comprises:

[0037] Base 1, which is used to carry the turning and milling compound machining center;

[0038] A column assembly, comprising a column 201 disposed on the upper portion of the base, and a column slide rail 202 disposed on the column 201 for guiding the movement of the crossbeam assembly;

[0039] A hydraulic rod 3, which is arranged on the column 201 to drive the crossbeam assembly;

[0040] A motor 4, which is arranged on the base 1 to drive the turning-milling compound machining center;

[0041] A crossbeam assembly, comprising a crossbeam 501 disposed on the upper portion of the column assembly, and a crossbeam slide rail 502 disposed on the crossbeam 501 for guiding the slide saddle;

[0042] A saddle 6, which is arranged on the upper part of the crossbeam assembly to support a tool head 7;

[0043] A tool head 7, which is arranged on the upper part of the slide saddle 6 to process the workpiece;

[0044] An infrared thermal imager 8, which is arranged inside the turning-milling composite machining center near one end of the workpiece to obtain temperature image data of the workpiece;

[0045] The industrial camera 9 is arranged inside the turning-milling composite machining center close to the infrared thermal imager to obtain image data of the material of the workpiece.

[0046] A data acquisition module, which is used to acquire monitoring data of the workpiece during the machining process of the turning-milling composite machining center, including temperature image data and material image data;

[0047] A data analysis module connected to the data acquisition module is used to determine whether the processing mode of the workpiece is continuous processing or segmented processing based on the heat diffusion rate of the heat at the contact point between the tool head and the workpiece in the workpiece;

[0048] A data processing module, which is connected to the data analysis module, is used to determine whether to add buffer zones in different sections based on the overlap of heat-affected zones of the workpieces in different sections, and to determine the eligibility of the workpieces after processing based on the micro-deformation characterization parameters of the workpieces after processing;

[0049] A data adjustment module, connected to the data processing module, for determining, based on the condition that the processed workpiece is unqualified after the processing, to preheat the workpiece at a preset temperature or to increase the cutting fluid injection rate at a preset injection rate adjustment coefficient according to the difference between the micro-deformation characterization parameter and the preset micro-deformation characterization parameter;

[0050] A material analysis module, which is connected to the data acquisition module and the data adjustment module respectively, and is used to determine the eligibility of the heat distribution of the workpiece after adjustment based on the thermal conductivity uniformity evaluation value of the workpiece;

[0051] A data optimization module is connected to the material analysis module and is used to determine whether to increase the cutting depth by a cutting depth adjustment coefficient or to increase the feed speed by a feed speed adjustment coefficient based on the ratio of the thermal conductivity uniformity evaluation value to the preset thermal conductivity uniformity evaluation value under the condition that the heat distribution of the workpiece after the adjustment is unqualified.

[0052] In the embodiment of the present invention, the infrared thermal imager is a device for acquiring infrared radiation from the surface of a workpiece and generating temperature image data, and is not specifically limited.

[0053] In the embodiment of the present invention, the industrial camera can be a device for acquiring material image data of a workpiece, and is not specifically limited to

[0054] In the embodiment of the present invention, the long high-speed linear rail turning and milling compound machining center processes the workpiece at a feed speed of 150 mm / min and a cutting depth of 1 mm, and sprays the cutting fluid at a cutting fluid injection rate of 1 L / 2 min. The feed speed is obtained by taking the average feed speed of several historical qualified machining processes, the cutting depth is obtained by taking the average cutting depth of several historical qualified machining processes, and the cutting fluid injection rate is obtained by taking the average cutting fluid injection rate of several historical qualified machining processes.

[0055] Specifically, the present invention determines the processing mode through a data analysis module, judges the processing mode according to the heat diffusion rate, improves the processing efficiency and the surface quality of the workpiece, the data processing module determines the buffer zone and the qualification of the workpiece after processing, the data adjustment module preheats or adjusts the cutting fluid injection rate according to the unqualified situation, reduces the micro-deformation of the workpiece by adding a buffer zone and adjusting the cutting fluid injection rate, and improves the qualification rate of the workpiece, the material analysis module evaluates the qualification of the heat distribution of the workpiece after adjustment, the data optimization module optimizes the unqualified situation, monitors the temperature of the workpiece in real time, controls the processing process, effectively reduces the influence of heat diffusion on the processing accuracy, and thus improves the processing efficiency of the long high-speed linear rail turning and milling compound machining center.

[0056] Specifically, the data analysis module determines the processing mode of the workpiece according to the comparison result of the heat diffusion rate of the contact point between the tool head and the workpiece in the workpiece and the heat diffusion rate threshold of 5mm / s;

[0057] If the heat diffusion rate is less than or equal to the heat diffusion rate threshold, determining that the processing mode of the workpiece is continuous processing;

[0058] If the heat diffusion rate is greater than the heat diffusion rate threshold, it is determined that the processing method of the workpiece is segmented processing.

[0059] In the embodiment of the present invention, the thermal diffusion rate threshold is 5 mm / s, and the thermal diffusion rate threshold is obtained by taking the average thermal diffusion rate of several historical segmented processes, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0060] In the embodiment of the present invention, the continuous processing is that the turning-milling compound machining center continuously processes the workpiece until completion, and the segmented processing is that the turning-milling compound machining center divides the processing into several segments.

[0061] Specifically, the heat diffusion rate is an average value of the ratio of the distance between the contact point and each end point of the workpiece to the diffusion time.

[0062] Specifically, the present invention compares the thermal diffusion rate of the contact point between the tool head and the workpiece with the thermal diffusion rate threshold to select continuous or segmented processing, thereby avoiding overheating and excessive heat-affected area, thereby improving processing accuracy and workpiece quality.

[0063] Specifically, the data processing module determines whether to add buffer zones in different sections based on the comparison result of the overlap of heat-affected zones of the workpieces in different sections and the preset overlap of heat-affected zones of 60% under the condition that the processing method of the workpiece is segmented processing;

[0064] If the overlap of the heat-affected areas is less than or equal to the preset overlap of the heat-affected areas, it is determined that there is no need to add buffer zones in different segments;

[0065] If the overlap of the heat-affected areas is greater than the preset overlap of the heat-affected areas, it is determined that buffer zones need to be added in different segments.

[0066] In an embodiment of the present invention, the preset heat-affected zone overlap value is 60%. The preset heat-affected zone overlap value is obtained by taking the average value of several historical heat-affected zone overlap values ​​that required adding buffer zones in different segments. However, the above value is not limited to this, and technical personnel in this field can also adjust the value according to actual needs.

[0067] In the embodiment of the present invention, the buffer zone is the space left between adjacent segments.

[0068] In the embodiment of the present invention, the heat affected zone is a region where the temperature of the workpiece changes due to the heat generated between the tool and the workpiece.

[0069] Specifically, the overlap of the heat affected zones is the ratio of the area of ​​the heat affected zone of the workpiece to the area of ​​the heat affected zone of the same position of the previous workpiece multiplied by 100%, and the area of ​​the heat affected zone is the area of ​​the region composed of the set of points in the temperature image whose temperature rise values ​​are greater than the average rise value.

[0070] Specifically, the present invention determines whether to add a buffer zone by comparing the overlap of the heat-affected zone with the preset overlap of the heat-affected zone, thereby avoiding processing errors and workpiece deformation caused by excessive overlap of the heat-affected zone and improving the accuracy and stability of the processed parts.

[0071] Specifically, the data processing module determines the eligibility of the processed workpiece after processing based on the comparison result of the micro-deformation characterization parameter of the processed workpiece after processing and the preset micro-deformation characterization parameter 0.75 under the condition of determining the processing mode;

[0072] If the micro-deformation characterization parameter is less than or equal to the preset micro-deformation characterization parameter, it is determined that the processed workpiece is qualified after processing;

[0073] If the micro-deformation characterization parameter is greater than the preset micro-deformation characterization parameter, it is determined that the processed workpiece is unqualified after processing.

[0074] In the embodiment of the present invention, the preset value of the micro-deformation characterization parameter is 0.75, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0075] Specifically, the micro-deformation characterization parameter is the ratio of the difference between the maximum grayscale value and the minimum grayscale value in the material image to the average grayscale value.

[0076] Specifically, the data adjustment module determines the adjustment method of the workpiece processing process according to the comparison result of the difference between the micro-deformation characterization parameter and the preset micro-deformation characterization parameter and the preset difference value of 0.25 under the condition that the workpiece after processing is determined to be unqualified;

[0077] If the difference is less than or equal to the preset difference, determining to preheat the workpiece at a preset temperature;

[0078] If the difference is greater than the preset difference, it is determined to increase the cutting fluid injection rate to a corresponding value by a preset injection rate adjustment coefficient of 1.05;

[0079] The difference is the difference between the micro-deformation characterization parameter and the preset micro-deformation characterization parameter.

[0080] In the embodiment of the present invention, the preset difference value is 0.25, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0081] In the embodiment of the present invention, the preset temperature range is 100°C-150°C, preferably 130°C.

[0082] In the embodiment of the present invention, the preheating is to heat the workpiece before processing the workpiece.

[0083] In the embodiment of the present invention, the increased cutting fluid injection rate is the product of the cutting fluid injection rate and a preset injection rate adjustment coefficient of 1.05.

[0084] Specifically, the present invention determines the qualification of the workpiece through micro-deformation characterization parameters and decides to use preheating or increase the cutting fluid injection rate to adjust the processing process according to the difference between the micro-deformation characterization parameters and the preset micro-deformation characterization parameters, accurately identifies the deformation of the workpiece, and adjusts the processing parameters in a targeted manner to improve the quality of the workpiece and the overall processing efficiency.

[0085] Specifically, the material analysis module determines the eligibility of the heat distribution of the workpiece after adjustment based on the comparison result of the thermal conductivity uniformity evaluation value of the workpiece and the preset thermal conductivity uniformity evaluation value of 0.85 under the condition of determining the adjustment method of the workpiece processing process;

[0086] If the thermal conductivity uniformity evaluation value is less than or equal to the preset thermal conductivity uniformity evaluation value, it is determined that the heat distribution of the workpiece after adjustment is unqualified;

[0087] If the thermal conductivity uniformity evaluation value is greater than the preset thermal conductivity uniformity evaluation value, it is determined that the heat distribution of the workpiece after adjustment is qualified.

[0088] In the embodiment of the present invention, the preset thermal conductivity uniformity evaluation value is 0.85, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0089] Specifically, the thermal conductivity uniformity evaluation value is the ratio of the average temperature of all pixel points in the temperature image to the standard deviation of the temperature of all pixel points.

[0090] Specifically, the data optimization module determines the optimization method of the workpiece processing process according to the comparison result of the ratio of the thermal conductivity uniformity evaluation value to the preset thermal conductivity uniformity evaluation value and the preset ratio 0.57 under the condition that the heat distribution of the workpiece after adjustment is determined to be unqualified;

[0091] If the ratio is less than or equal to the preset ratio, it is determined to reduce the cutting depth by a corresponding value using a preset cutting depth adjustment coefficient of 0.97;

[0092] If the ratio is greater than the preset ratio, it is determined to reduce the feed speed to a corresponding value using a preset feed speed adjustment coefficient of 0.93;

[0093] The ratio is a ratio of the thermal conductivity uniformity evaluation value to the preset thermal conductivity uniformity evaluation value.

[0094] In the embodiment of the present invention, the preset ratio is 0.57, but the above value is not limited thereto, and those skilled in the art may also adjust the value according to actual needs.

[0095] In the embodiment of the present invention, the reduced cutting depth is the product of the cutting depth and a preset cutting depth adjustment coefficient of 0.97; the reduced feed speed is the product of the feed speed and a preset feed speed adjustment coefficient of 0.93.

[0096] Specifically, the present invention evaluates the eligibility of the heat distribution of the workpiece after adjustment, and when it is unqualified, optimizes the cutting depth or feed speed according to the ratio of the thermal conductivity uniformity evaluation value to the preset thermal conductivity uniformity evaluation value, and adjusts the cutting parameters to optimize the machining process, thereby ensuring uniform heat distribution of the workpiece and improving the machining accuracy and efficiency of the workpiece.

[0097] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0098] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-purpose long high-speed linear rail turning and milling compound machining center, characterized in that: include: A data acquisition module, which is used to acquire monitoring data of the workpiece during the machining process of the turning-milling composite machining center, including temperature image data and material image data; A data analysis module connected to the data acquisition module is used to determine whether the processing mode of the workpiece is continuous processing or segmented processing based on the heat diffusion rate of the heat at the contact point between the tool head and the workpiece in the workpiece; A data processing module, which is connected to the data analysis module, is used to determine whether to add buffer zones in different sections based on the overlap of heat-affected zones of the workpieces in different sections, and to determine the eligibility of the workpieces after processing based on the micro-deformation characterization parameters of the workpieces after processing; A data adjustment module, connected to the data processing module, for determining, based on the condition that the processed workpiece is unqualified after the processing, to preheat the workpiece at a preset temperature or to increase the cutting fluid injection rate at a preset injection rate adjustment coefficient according to the difference between the micro-deformation characterization parameter and the preset micro-deformation characterization parameter; A material analysis module, which is connected to the data acquisition module and the data adjustment module respectively, and is used to determine the eligibility of the heat distribution of the workpiece after adjustment based on the thermal conductivity uniformity evaluation value of the workpiece; A data optimization module is connected to the material analysis module and is used to determine whether to increase the cutting depth by a preset cutting depth adjustment coefficient or to increase the feed speed by a preset feed speed adjustment coefficient based on the ratio of the thermal conductivity uniformity evaluation value to the preset thermal conductivity uniformity evaluation value under the condition that the heat distribution of the workpiece after the adjustment is unqualified.

2. The multi-purpose long high-speed linear rail turning and milling compound machining center according to claim 1 is characterized in that: The data analysis module determines that the processing mode of the workpiece is continuous processing based on a comparison result that the thermal diffusion rate of heat at the contact point between the tool head and the workpiece in the workpiece is less than or equal to a thermal diffusion rate threshold.

3. The multi-purpose long high-speed linear rail turning and milling compound machining center according to claim 1 is characterized in that: The data analysis module determines that the processing method of the workpiece is segmented processing based on a comparison result that the thermal diffusion rate of heat at the contact point between the tool head and the workpiece in the workpiece is greater than a thermal diffusion rate threshold.

4. The multi-purpose long high-speed linear rail turning and milling compound machining center according to claim 3 is characterized in that: The data processing module determines that buffer zones need to be added in different segments based on a comparison result that the overlap of heat-affected zones of the workpieces in different segments is greater than a preset overlap of heat-affected zones, under the condition that the processing method of the workpiece is segmented processing.

5. The multi-purpose long high-speed linear rail turning and milling compound machining center according to claim 2 or 3, characterized in that: The data processing module determines that the processed workpiece is unqualified based on a comparison result that the micro-deformation characterization parameter of the processed workpiece is greater than a preset micro-deformation characterization parameter under the condition of determining the processing method.

6. The multi-purpose long high-speed linear rail turning and milling compound machining center according to claim 5 is characterized in that: The data adjustment module determines to preheat the workpiece at a preset temperature based on a comparison result that a difference between the micro-deformation characterization parameter and a preset micro-deformation characterization parameter is less than or equal to a preset difference, under the condition that the workpiece is determined to be unqualified after processing.

7. The multi-purpose long high-speed linear rail turning and milling compound machining center according to claim 5 is characterized in that: The data adjustment module determines to increase the cutting fluid injection rate by a preset injection rate adjustment coefficient based on a comparison result that a difference between the micro-deformation characterization parameter and a preset micro-deformation characterization parameter is greater than a preset difference, under the condition that the processed workpiece is determined to be unqualified after processing.

8. The multi-purpose long high-speed linear rail turning and milling compound machining center according to claim 1 is characterized in that: The material analysis module determines that the heat distribution of the workpiece after adjustment is unqualified based on a comparison result that the thermal conductivity uniformity evaluation value of the workpiece is less than or equal to a preset thermal conductivity uniformity evaluation value, under the condition of determining the adjustment method of the workpiece processing process.

9. The multi-purpose long high-speed linear rail turning and milling compound machining center according to claim 8 is characterized in that: The data optimization module determines, under the condition that the heat distribution of the workpiece after adjustment is unqualified, to reduce the cutting depth by a preset cutting depth adjustment coefficient based on a comparison result that the ratio of the thermal conductivity uniformity evaluation value to the preset thermal conductivity uniformity evaluation value is less than or equal to a preset ratio.

10. The multi-purpose long high-speed linear rail turning and milling compound machining center according to claim 8 is characterized in that: The data optimization module determines to reduce the feed speed by a preset feed speed adjustment coefficient based on a comparison result that a ratio of the thermal conductivity uniformity evaluation value to the preset thermal conductivity uniformity evaluation value is greater than a preset ratio, under the condition that the heat distribution of the workpiece after adjustment is unqualified.

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