Inspection method and inspection system for blade machining center

Abstract

The present invention relates to the technical field of machining machine tools, and in particular to a detection method and a detection system for a blade machining center. The detection method for the blade machining center includes: obtaining a movement instruction issued to a driving structure and a movement parameter of a clamping structure; determining the accuracy of the driving structure by comparing the movement instruction with the movement parameter; obtaining a preset three-dimensional model and displacement data during the processing of a polygonal specimen and three-dimensional data of a finished polygonal specimen; determining the accuracy of the polygonal specimen by comparing the displacement data and / or the three-dimensional model with the three-dimensional data. The detection method for a blade machining center provided by the present invention performs detection from two aspects of the accuracy of the driving structure and the polygonal specimen, reduces the movement error of the driving structure and the machining error of the finished polygonal specimen, and can effectively quantify the machining accuracy of the blade machining center so as to adjust the overall machining accuracy of the blade machining center.

Description

Technical Field

[0001] The invention relates to the technical field of machining machine tools, and in particular to a detection method and a detection system for a blade machining center. Background Art

[0002] Blades are widely used in aviation, shipbuilding, power generation and other fields. With the continuous development and improvement of blade technology, the processing quality and efficiency of blades are also constantly improving. Due to the thin wall and other characteristics of blades, they are easy to deform during processing. The synchronization accuracy of the dual servo axes of machine tools plays an important role in blade processing. At the same time, the dynamic response of the dual servo axes is also extremely important during processing. It is easy to overcut or undercut, which affects the accuracy of the blade shape and edge contour.

[0003] Most existing blades are processed and manufactured using blade five-axis machining centers. The polygonal specimens used are standard specimens used on CNC machine tools (i.e. blade five-axis machining centers) to test and verify machine tool performance, tool path programming correctness, and rationality of machining process parameters. Such specimens have complex geometric shapes, including multiple planes, curved surfaces, and edges, which can well simulate the actual blade machining process. It can be seen that the accuracy of the polygonal specimens often reflects the machining accuracy of the blade five-axis machining center, but the relevant technology lacks the detection of the machining accuracy of the polygonal specimens, and the error between the polygonal specimens and the standard parts is large, resulting in a lack of effective quantitative representation of the machining accuracy of the blade five-axis machining center.

[0004] In addition, the machining accuracy of the five-axis blade machining center is also related to the movement accuracy of the driving structure that drives the polygonal specimen to move. However, the relevant technology lacks the detection of the movement accuracy of the driving structure, resulting in a lack of effective quantitative representation of the machining accuracy of the five-axis blade machining center. Summary of the invention

[0005] The invention provides a detection method and a detection system of a blade machining center, which are used to solve the defect that the machining accuracy of a blade five-axis machining center in the prior art lacks effective quantitative representation.

[0006] The present invention provides a detection method for a blade processing center, the blade processing center comprising: a driving structure, a clamping structure and a polygonal specimen, the driving structure is located at both sides of the polygonal specimen and is clamped at both ends of the polygonal specimen by the clamping structure, and the polygonal specimen is made according to a preset three-dimensional model;

[0007] The detection method of the blade processing center comprises:

[0008] Obtaining movement instructions issued to the driving structure and movement parameters of the clamping structure;

[0009] Determining the accuracy of the drive structure by comparing the movement instruction with the movement parameter;

[0010] Obtaining a preset three-dimensional model, displacement data during the processing of the polygonal specimen, and three-dimensional data of the finished polygonal specimen;

[0011] The accuracy of the polygonal specimen is determined by comparing the displacement data and / or the three-dimensional model with the three-dimensional data.

[0012] According to the detection method of the blade machining center provided by the present invention, the step of obtaining the movement instruction issued to the driving structure and the movement parameters of the clamping structure specifically includes:

[0013] An instruction to move along the Z axis is obtained to the driving structure, and a first movement parameter of the clamping structure located on one side of the polygonal specimen and a second movement parameter of the clamping structure located on the other side of the polygonal specimen are detected and obtained through a sensor.

[0014] According to the detection method of the blade machining center provided by the present invention, the step of determining the accuracy of the driving structure by comparing the movement instruction with the movement parameter specifically includes:

[0015] The accuracy of the driving structure is determined by comparing the consistency between the first movement parameter and the instruction for moving along the Z axis and / or the consistency between the second movement parameter and the instruction for moving along the Z axis.

[0016] According to the detection method of the blade machining center provided by the present invention, after the step of determining the accuracy of the driving structure by comparing the consistency of the first movement parameter with the instruction for moving along the Z axis and / or the consistency of the second movement parameter with the instruction for moving along the Z axis, the method further includes:

[0017] According to the consistency comparison result of the first movement parameter and the instruction for moving along the Z axis, a first compensation parameter is formed, and according to the consistency comparison result of the second movement parameter and the instruction for moving along the Z axis, a second compensation parameter is formed;

[0018] Determining a first instruction according to the instruction for moving along the Z axis and the first compensation parameter, and the driving structure located on one side of the polygonal specimen moves according to the first instruction;

[0019] A second instruction is determined according to the instruction for moving along the Z axis and the second compensation parameter, and the driving structure located at one side of the polygonal specimen moves according to the second instruction.

[0020] According to the detection method of the blade machining center provided by the present invention, the movement parameters include: the moment when the clamping structure starts to move, the direction and distance of the movement of the clamping structure, and the moment when the clamping structure stops moving; the movement instructions include: the moment when the driving structure starts to move, the direction and distance of the movement of the driving structure, and the moment when the driving structure stops moving.

[0021] According to the detection method of the blade machining center provided by the present invention, the step of determining the accuracy of the polygonal specimen by comparing the displacement data and / or the three-dimensional model with the three-dimensional data specifically includes:

[0022] The displacement data of the machining tool during the machining of the polygonal specimen is detected by the sensor, and the displacement data of the machining tool changing with time is obtained, so as to judge whether the machining tool moves continuously during the machining of the polygonal specimen, so as to determine the accuracy of the polygonal specimen;

[0023] If the machining tool gets stuck during machining of the polygonal specimen, the position of the stuck is recorded.

[0024] According to the detection method of the blade machining center provided by the present invention, the step of determining the accuracy of the polygonal specimen by comparing the displacement data and / or the three-dimensional model with the three-dimensional data specifically includes:

[0025] The three-dimensional data of the finished polygonal specimen is detected by a sensor, and the consistency of the number of edges and / or size of the finished polygonal specimen with the three-dimensional model is judged to determine the accuracy of the polygonal specimen.

[0026] According to the detection method of the blade processing center provided by the present invention, the step of detecting the three-dimensional data of the finished polygonal specimen by a sensor and judging the consistency between the number of edges and / or size of the finished polygonal specimen and the three-dimensional model specifically includes:

[0027] Detecting the three-dimensional data of the finished polygonal specimen by a sensor to determine whether there is an overcut or undercut edge between two adjacent edges of the finished polygonal specimen compared with the three-dimensional model; and / or,

[0028] The three-dimensional data of the finished polygonal specimen is detected by a sensor to determine the error between the shape parameters of the edges of the finished polygonal specimen and the corresponding edges of the three-dimensional model.

[0029] According to the detection method of the blade machining center provided by the present invention, the step of determining the accuracy of the polygonal specimen by comparing the displacement data and / or the three-dimensional model with the three-dimensional data specifically includes:

[0030] The three-dimensional data of the finished polygonal specimen is detected by the sensor, and the parallelism of two relative edges of the finished polygonal specimen is judged to determine the accuracy of the polygonal specimen.

[0031] The present invention further provides a detection system for the detection method of a blade machining center provided in an embodiment of the present invention, comprising:

[0032] A first sensor for detecting movement parameters of the clamping structure;

[0033] The second sensor is used to detect the displacement data during the processing of the polygonal specimen and the three-dimensional data of the finished polygonal specimen;

[0034] A controller is electrically connected to the first sensor and the second sensor, and the controller is used to:

[0035] Obtaining movement instructions issued to the driving structure and movement parameters of the clamping structure;

[0036] Determining the accuracy of the drive structure by comparing the movement instruction with the movement parameter;

[0037] Obtaining a preset three-dimensional model, displacement data during the processing of the polygonal specimen, and three-dimensional data of the finished polygonal specimen;

[0038] The accuracy of the polygonal specimen is determined by comparing the displacement data and / or the three-dimensional model with the three-dimensional data.

[0039] The present invention provides a method for detecting a blade machining center, which includes the following steps: obtaining a movement instruction issued to a driving structure and movement parameters of a clamping structure; determining the accuracy of the driving structure by comparing the movement instruction with the movement parameters; obtaining a preset three-dimensional model and displacement data during the processing of a polygonal specimen and three-dimensional data of a finished polygonal specimen; determining the accuracy of the polygonal specimen by comparing the displacement data and / or the three-dimensional model with the three-dimensional data. The present invention provides a method for detecting a blade machining center, which detects the accuracy of the driving structure and the polygonal specimen, reduces the movement error of the driving structure and the machining error of the finished polygonal specimen, and can effectively quantify the machining accuracy of the blade machining center so as to adjust the overall machining accuracy of the blade machining center.

[0040] Furthermore, the present invention also provides a detection system for the detection method of the blade machining center provided by the present invention. Since its controller adopts the detection method of the blade machining center of the present invention, it has the same advantages as above. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 It is a flow chart of a detection method for a driving structure provided in one embodiment of the present invention.

[0043] Figure 2 It is a schematic flow chart of a detection method for a polygonal specimen provided in one embodiment of the present invention.

[0044] Figure 3 It is a structural schematic diagram of a first sensor, a driving structure and a clamping structure provided in one embodiment of the present invention.

[0045] Figure 4 It is a partial structural schematic diagram of a manual slide, a sensor support frame and a first sensor provided in one embodiment of the present invention.

[0046] Figure 5 It is an overall structural diagram of the polygonal specimen provided by the present invention.

[0047] Figure 6 It is an overall structural diagram of the blade processing center provided by the present invention.

[0048] Figure 7 It is a schematic diagram of the local structure of the driving structure, the clamping structure and the multi-faceted specimen provided by the present invention.

[0049] Reference numerals:

[0050] 1: First Z-axis box; 2: Second Z-axis box; 3: First clamping structure; 4: Second clamping structure; 5: Manual slide; 6: Sensor support frame; 7: First sensor; 8: Signal line; 9: Tool handle inspection rod; 10: Processor; 20: Polygonal specimen; 21: Main body of the top-conical polygonal specimen; 22: Clamping part. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] In the description of the present embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present embodiment and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present embodiment.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this embodiment, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In this embodiment, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0055] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0056] Combine the following Figures 1 to 7 The present invention describes a detection method for a blade machining center.

[0057] The blade processing center provided by the present invention includes: a driving structure, a clamping structure and a polygonal specimen 20. The driving structure is located on both sides of the polygonal specimen 20 and is clamped at both ends of the polygonal specimen 20 by the clamping structure. The polygonal specimen 20 is made according to a preset three-dimensional model.

[0058] Specifically, the blade processing center of the present invention adopts Figure 6 The five-axis machining center for blades shown.

[0059] The detection method of the blade processing center provided by the present invention includes: a detection method for the driving structure and a detection method for the polygonal specimen 20 .

[0060] The present invention detects the accuracy of the driving structure and the accuracy of the polygonal specimen 20, thereby comprehensively judging the accuracy of the blade machining center. The required accuracy can be set according to the needs of the blade machining parameters. For example, the machining accuracy of the A-axis box, the machining accuracy of the B-axis box, the machining accuracy of the Z-axis box, and the machining accuracy of the polygonal specimen 20 can be specified, and the detected accuracy is compared with the above-specified accuracy to determine the accuracy of the blade machining center.

[0061] Specifically, the detection method for the drive structure includes the following steps:

[0062] S10, obtaining a movement instruction sent to the driving structure and movement parameters of the clamping structure;

[0063] S20. Determine the accuracy of the drive structure by comparing the movement instruction with the movement parameter.

[0064] Specifically, the detection method for the polygonal specimen 20 includes the following steps:

[0065] S30, obtaining a preset three-dimensional model, displacement data during the processing of the polygonal specimen 20, and three-dimensional data of the finished polygonal specimen 20;

[0066] S40, determining the accuracy of the polygonal specimen 20 by comparing the displacement data and / or the three-dimensional model with the three-dimensional data.

[0067] The above detection method can be integrated into the controller of the blade processing center through software algorithm.

[0068] Specifically, the working state of the driving structure is controlled by a movement instruction issued by the controller. The controller obtains the movement instruction and detects the movement parameters of the clamping structures on both sides of the polygonal specimen 20 through sensors, such as the movement trajectory of the three-dimensional coordinates.

[0069] Generally, the above-mentioned movement instructions include the movement of the Z-axis box. The driving structure drives the clamping structure to move up and down according to the above-mentioned movement instructions. The displacement parameters of the up and down movement are detected by sensors (such as displacement sensors), and the displacement parameters are compared with the above-mentioned movement instructions, so as to determine the accuracy of the driving structure.

[0070] For example, an error range can be set. If the movement parameters of the clamping structure are within the error range of the movement command issued by the controller, the accuracy of the drive structure can be considered to meet the standard; otherwise, the accuracy of the drive structure is considered to be unsatisfactory and needs to be corrected or compensated so that its accuracy is within the error range. It can be understood that the error range set above can be a specific value or a percentage of the movement distance generated by the movement command; for example, the movement command issued is to control the left drive structure to move upward by 1 mm, and the error range set is 0.05 mm or 5%. If it is detected that the clamping structure moves upward within 0.95~1.05 mm, it meets the accuracy requirements; otherwise, it does not meet the accuracy requirements.

[0071] The polygonal specimen 20 of the present invention is composed of a cone-shaped polygonal specimen body 21 and a clamping portion 22. The clamping portion 22 is located at both ends of the cone-shaped polygonal specimen body 21 and is used to connect with the clamping structure. The cone-shaped polygonal specimen body 21 is narrowed inward from both ends, and the axial shape is a uniform polygon that is approximately circular; the clamping portion 22 is a rectangular protrusion of a rectangular body at the outer end surface of the cone-shaped polygonal specimen body 21; a positioning hole is provided on the rectangular end surface at the position of the geometric rotation center axis of the polygon to clamp and position the polygon; the cone-shaped polygonal specimen 20 preferably has 72 edges evenly distributed on the cylindrical end surface and the cone-shaped body.

[0072] The edge of the polygon is a bilaterally symmetrical arc. When processing each narrow surface of the top cone polygon specimen 20, the B-axis box needs to swing and cooperate with the movement of the X-axis box and the Z-axis box to achieve the processing path of the narrow surface of the arc edge. The specific implementation method of the processing tool movement route is as follows:

[0073] First, the starting point of the machining tool is set to the middle position of the axial direction of the polygon, and the B axis first swings counterclockwise. To ensure that the axis of the machining tool always remains perpendicular to the machining surface, it is necessary to move in the positive direction of X and the positive direction of Z at the same time; after the machining is completed, the tool returns to the starting point, and the B axis swings clockwise. To ensure that the axis of the machining tool always remains perpendicular to the machining surface, it is necessary to move in the negative direction of X and the positive direction of Z at the same time; after the machining is completed, by detecting whether there are similar breakpoints at similar positions on multiple edges, it can be determined whether there is linkage jamming on the machining path.

[0074] The controller obtains the preset three-dimensional model, and uses a sensor (such as a displacement sensor) to obtain the displacement data of the processing tool during the processing of the polygonal specimen 20, and scans the contour of the finished polygonal specimen 20 through a sensor (such as a 3D scanner) to form three-dimensional data. Generally, in order to ensure the accuracy of the polygonal specimen 20, it is necessary to ensure that the processing tool moves continuously. If a jam occurs on the processing path, it may cause a breakpoint to form on the polygonal specimen 20. Therefore, it is necessary to ensure that the displacement of the processing tool changes continuously over time. If the displacement sensor detects that the processing tool stops at a certain moment or a certain period of time, it means that the processing tool is stuck. The controller stores the displacement data of the sensor at the stuck position so that its position can be quickly determined when the breakpoint of the test piece is detected later. Generally, if the processing tool works continuously, that is, there is no jamming phenomenon, it means that the processing accuracy meets the standard; on the contrary, if there is a jamming phenomenon, the processing accuracy does not meet the standard.

[0075] The three-dimensional data obtained by scanning the finished polygonal specimen 20 is compared with the preset three-dimensional model, and the processing accuracy of the finished polygonal specimen 20 is obtained by comparing the differences. Similarly, an error range can be set. If the three-dimensional data obtained by scanning is within the set error range of the preset three-dimensional model, the processing accuracy of the finished polygonal specimen 20 meets the requirements; otherwise, it does not meet the requirements.

[0076] The present invention provides a method for detecting a blade machining center, which includes the following steps: obtaining a movement instruction issued to a driving structure and a movement parameter of a clamping structure; determining the accuracy of the driving structure by comparing the movement instruction with the movement parameter; obtaining a preset three-dimensional model and displacement data during the processing of a polygonal specimen 20 and three-dimensional data of the finished polygonal specimen 20; determining the accuracy of the polygonal specimen 20 by comparing the displacement data and / or the three-dimensional model with the three-dimensional data. The present invention provides a method for detecting a blade machining center, which detects the accuracy of the driving structure and the polygonal specimen 20, reduces the movement error of the driving structure and the machining error of the finished polygonal specimen 20, and can effectively quantify the machining accuracy of the blade machining center so as to adjust the overall machining accuracy of the blade machining center.

[0077] In one embodiment of the present invention, the step of obtaining the movement instruction issued to the driving structure and the movement parameter of the clamping structure, i.e., step S10, specifically includes: obtaining the instruction issued to the driving structure to move along the Z axis, detecting and obtaining the first movement parameter of the clamping structure located on one side of the polygonal specimen 20 and the second movement parameter of the clamping structure located on the other side of the polygonal specimen 20 through the sensor. The first Z-axis box 1 and the second Z-axis box 2 are located on both sides of the polygonal specimen 20, respectively. The controller sends the instruction to move along the Z-axis direction to the first Z-axis box 1 and the second Z-axis box 2, respectively. Driven by the first Z-axis box 1 and the second Z-axis box 2, the first clamping structure 3 and the second clamping structure 4 on both sides move accordingly, and the displacement of the first clamping structure 3 and the second clamping structure 4 on both sides is detected by the displacement sensor to obtain the first movement parameter and the second movement parameter.

[0078] In one embodiment of the present invention, the step of determining the accuracy of the driving structure by comparing the movement instruction with the movement parameter, that is, step S20, specifically includes: S201, by comparing the consistency of the first movement parameter with the instruction for moving along the Z axis and / or the consistency of the second movement parameter with the instruction for moving along the Z axis, to determine the accuracy of the driving structure. Specifically, the displacement of the clamping structure on the left and right sides (i.e., the first movement parameter and the second movement parameter) is compared with the movement instruction issued by the controller. If the displacement is consistent with the movement instruction, it means that the accuracy of the driving structure meets the requirements; otherwise, the accuracy does not meet the requirements, and the driving structure can be compensated for the offset.

[0079] In one embodiment of the present invention, after the step of determining the accuracy of the driving structure by comparing the consistency of the first movement parameter with the instruction for moving along the Z axis and / or the consistency of the second movement parameter with the instruction for moving along the Z axis, that is, after step S201, it also includes: forming a first compensation parameter according to the consistency comparison result of the first movement parameter with the instruction for moving along the Z axis, and forming a second compensation parameter according to the consistency comparison result of the second movement parameter with the instruction for moving along the Z axis. The first instruction is determined according to the instruction for moving along the Z axis and the first compensation parameter, and the driving structure located on one side of the polygonal specimen 20 moves according to the first instruction; the second instruction is determined according to the instruction for moving along the Z axis and the second compensation parameter, and the driving structure located on one side of the polygonal specimen 20 moves according to the second instruction. Specifically, the first compensation parameter can be formed by comparing the first movement parameter with the instruction for moving along the Z axis. For example, if the controller issues an instruction to move 1 mm in the positive direction of the Z axis (i.e., the original instruction), and the detected first movement parameter is to move 1.05 mm in the positive direction of the Z axis, the following formula can be obtained:

[0080] In the above formula, A1 represents the original instruction issued by the controller; A2 represents the first movement parameter; X represents the first compensation parameter, then represents the first instruction after correction; A4 represents the movement parameter of the drive structure after correction. If A4=A1, then the above formula:

[0081] Then X=A1 / A2, so , the corrected first instruction can be obtained. In the above example, the corrected first instruction is to move 1 / 1.05mm along the positive direction of the Z axis.

[0082] Similarly, the second instruction can also be calculated in the above manner.

[0083] In one embodiment of the present invention, the movement parameters include: the moment when the clamping structure starts to move, the direction and distance of the movement of the clamping structure, and the moment when the clamping structure stops moving; the movement instructions include: the moment when the driving structure starts to move, the direction and distance of the movement of the driving structure, and the moment when the driving structure stops moving. In this embodiment, the movement parameters include not only the displacement of the clamping structure (i.e., the moving direction and the moving distance), but also the moment when the clamping structure starts to move and the moment when the movement stops. By comparing the above-mentioned moments detected with the time when the original instruction is issued and the time when it stops, it can be obtained whether the corresponding command of the driving structure is timely. Therefore, the accuracy of the driving structure can be detected from both spatial and temporal aspects through the above-mentioned detection.

[0084] In one embodiment of the present invention, the step of determining the accuracy of the polygonal specimen 20 by displacement data and / or comparison between the three-dimensional model and the three-dimensional data, i.e., step S40, specifically includes: detecting the displacement data of the machining tool during the machining of the polygonal specimen 20 by a sensor, obtaining the displacement data of the machining tool changing with time, thereby determining whether the machining tool moves continuously during the machining of the polygonal specimen 20, so as to determine the accuracy of the polygonal specimen 20. If the machining tool is stuck during the machining of the polygonal specimen 20, the position of the stuck is recorded. In this embodiment, by detecting whether the machining tool moves smoothly and continuously during the machining of the polygonal specimen 20, that is, judging whether there are similar breakpoints, it can be judged whether there is a linkage jam on the machining path. If there is a jam, it means that the machining tool is obstructed during the machining process, and the polygonal specimen 20 may have defects. The jam position is recorded to facilitate subsequent rapid inspection of the polygonal specimen 20. It can be known whether the jam of the machining tool affects the external contour of the polygonal specimen 20, and the machining accuracy of the polygonal specimen 20 can be further judged.

[0085] In one embodiment of the present invention, the step of determining the accuracy of the polygonal specimen 20 by comparing the displacement data and / or the three-dimensional model with the three-dimensional data, that is, step S40, specifically includes: S401, detecting the three-dimensional data of the finished polygonal specimen 20 by a sensor, judging the consistency of the number of edges and / or size of the finished polygonal specimen 20 with the three-dimensional model, so as to determine the accuracy of the polygonal specimen 20. In this embodiment, the finished polygonal specimen 20 is scanned by a 3D scanner to obtain the three-dimensional model of the finished polygonal specimen 20, and the consistency of the three-dimensional model is compared with the preset three-dimensional model, so as to determine the accuracy of the finished polygonal specimen 20.

[0086] In one embodiment of the present invention, the step of detecting the three-dimensional data of the finished polygonal specimen 20 by a sensor and determining the consistency of the number and / or size of the edges of the finished polygonal specimen 20 with the three-dimensional model, that is, step S401 specifically includes: detecting the three-dimensional data of the finished polygonal specimen 20 by a sensor and determining whether there is an overcut or missed edge between two adjacent edges of the finished polygonal specimen 20 compared with the three-dimensional model; and / or, detecting the three-dimensional data of the finished polygonal specimen 20 by a sensor and determining the error of the shape parameters of the edges of the finished polygonal specimen 20 compared with the corresponding edges of the three-dimensional model. Specifically, by comparing the three-dimensional model of the finished polygonal specimen 20 with the preset three-dimensional model, it is determined whether there is an overcut or missed phenomenon on the adjacent edges, so as to determine the synchronous dynamic response accuracy of the A-axis rotation and the B-axis; it is also possible to determine whether there is an error in the edge processing by comparing the above three-dimensional models, so as to determine the dynamic response accuracy of the Z-axis (detecting the left-right symmetry of the edges can determine the synchronous response accuracy of the Z-axis and the B-axis). If there is overcutting or missing cutting, the processing accuracy is poor. If the edge processing error exceeds the preset error range, the processing accuracy is poor. If none of the above phenomena exist, it indicates that the processing accuracy meets the requirements.

[0087] In one embodiment of the present invention, the step of determining the accuracy of the polygonal specimen 20 by comparing the displacement data and / or the three-dimensional model with the three-dimensional data, i.e., step S40, specifically includes: detecting the three-dimensional data of the finished polygonal specimen 20 by a sensor, and determining the parallelism of two relative edges of the finished polygonal specimen 20 to determine the accuracy of the polygonal specimen 20. In this embodiment, by comparing the three-dimensional data of the finished polygonal specimen 20 with the preset three-dimensional model, the parallelism of two relative edges is determined, and the degree of distortion during the processing can be determined, and then the dynamic response accuracy of the dual A-axis synchronous rotation can be determined.

[0088] According to the above embodiment, the three-dimensional model detection of the finished polygonal specimen 20 includes: detecting the first position at both ends of the polygonal specimen 20 along the axial direction, the second position along the axial center, and the third position close to both sides of the second position, and the detection content includes: whether the edges of the polygon are obvious, whether the outer contour of the specimen is smooth, and whether there is overcutting or undercutting. Preferably, the first position is the straight surface of the edges of the top cone polygonal specimen body 21 located at both ends along the axial direction; the second position is the axial center position of the top cone polygonal specimen body 21, that is, the narrowest surface of the top cone polygonal specimen body 21; the third position is the symmetrical position on both sides of the narrowest surface of the top cone polygonal specimen body 21.

[0089] The present invention also provides a detection system for the detection method of a blade machining center provided in the above embodiment of the present invention. The detection system for the detection method of a blade machining center comprises: a first sensor, a second sensor and a controller.

[0090] Among them, the first sensor is used to detect the movement parameters of the clamping structure; the second sensor is used to detect the displacement data during the processing of the polygonal specimen 20 and the three-dimensional data of the finished polygonal specimen 20; the controller is electrically connected to the first sensor and the second sensor.

[0091] The controller is used to execute the detection method of the blade processing center in the above embodiment of the present invention, that is:

[0092] S10, obtaining a movement instruction sent to the driving structure and movement parameters of the clamping structure;

[0093] S20, determining the accuracy of the driving structure by comparing the movement instruction and the movement parameter;

[0094] S30, obtaining a preset three-dimensional model, displacement data during the processing of the polygonal specimen 20, and three-dimensional data of the finished polygonal specimen 20;

[0095] S40, determining the accuracy of the polygonal specimen 20 by comparing the displacement data and / or the three-dimensional model with the three-dimensional data.

[0096] The present invention also provides a detection system for the detection method of a blade machining center provided by the present invention. Since its controller adopts the detection method of a blade machining center provided by the present invention, it has the same advantages as above.

[0097] Specifically, if Figure 3 and Figure 4As shown, it is a specific arrangement of the first sensor 7, the drive structure and the clamping structure. The first Z-axis box 1 on the left side moves up and down, the first clamping structure 3 is connected to the left spindle flange, the manual slide 5 is connected to the first clamping structure 3, and is used to fine-tune the position of the first sensor 7 up and down and forward and backward. The sensor support frame 6 is connected to the manual slide 5, and the first sensor 7 is installed in the end hole of the sensor support frame 6. The second Z-axis box 2 on the right side moves up and down synchronously with the first Z-axis box 1 on the left side, the second clamping structure 4 on the right side is connected to the spindle flange on the right side, and the tool handle inspection rod 9 is connected to the second clamping structure 4. Similarly, the first sensor 7 can realize the displacement detection of the left and right clamping structures through the change of the installation position of the sensor support frame 6. The position signal of the first sensor 7 changes, and is transmitted to the processor 10 by the signal line 8 to analyze the synchronization error through software to perform system compensation. The above-mentioned first clamping structure 3 and the second clamping structure 4 are preferably connected to the disk.

[0098] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0099] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0100] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A detection method for a blade machining center, characterized in that: The blade processing center comprises: a driving structure, a clamping structure and a polygonal specimen, wherein the driving structure is located at both sides of the polygonal specimen and is clamped at both ends of the polygonal specimen by the clamping structure, and the polygonal specimen is made according to a preset three-dimensional model; The detection method of the blade processing center comprises: Obtain the movement instructions issued to the driving structure and the movement parameters of the clamping structure, including: Obtaining an instruction to send a movement along the Z axis to the driving structure, detecting and obtaining a first movement parameter of the clamping structure located on one side of the polygonal specimen and a second movement parameter of the clamping structure located on the other side of the polygonal specimen through a sensor; Determining the accuracy of the driving structure by comparing the movement instruction with the movement parameter, specifically comprising: determining the accuracy of the driving structure by comparing the consistency of the first movement parameter with the instruction for moving along the Z axis and the consistency of the second movement parameter with the instruction for moving along the Z axis; Obtaining a preset three-dimensional model, displacement data during the processing of the polygonal specimen, and three-dimensional data of the finished polygonal specimen; Detect the displacement data of the machining tool during the machining of the polygonal specimen by using a sensor, obtain the displacement data of the machining tool changing with time, so as to judge whether the machining tool moves continuously during the machining of the polygonal specimen, so as to determine the accuracy of the polygonal specimen, and if the machining tool is stuck during the machining of the polygonal specimen, record the position of the stuck; Detecting the three-dimensional data of the finished polygonal specimen by a sensor to determine whether there is an overcut or undercut edge between two adjacent edges of the finished polygonal specimen compared with the three-dimensional model; and / or, The three-dimensional data of the finished polygonal specimen is detected by a sensor to determine the error between the shape parameters of the edges of the finished polygonal specimen and the corresponding edges of the three-dimensional model.

2. The detection method of the blade processing center according to claim 1 is characterized in that: After the step of determining the accuracy of the driving structure by comparing the consistency of the first movement parameter with the instruction for moving along the Z axis and the consistency of the second movement parameter with the instruction for moving along the Z axis, the method further includes: According to the consistency comparison result of the first movement parameter and the instruction for moving along the Z axis, a first compensation parameter is formed, and according to the consistency comparison result of the second movement parameter and the instruction for moving along the Z axis, a second compensation parameter is formed; Determining a first instruction according to the instruction for moving along the Z axis and the first compensation parameter, and the driving structure located on one side of the polygonal specimen moves according to the first instruction; A second instruction is determined according to the instruction for moving along the Z axis and the second compensation parameter, and the driving structure located at one side of the polygonal specimen moves according to the second instruction.

3. The detection method of the blade processing center according to claim 1 or 2, characterized in that: The movement parameters include: the moment when the clamping structure starts to move, the direction and distance in which the clamping structure moves, and the moment when the clamping structure stops moving; the movement instructions include: the moment when the driving structure starts to move, the direction and distance in which the driving structure moves, and the moment when the driving structure stops moving.

4. The detection method of a blade machining center according to claim 1 or 2, characterized in that: Specifically include: The three-dimensional data of the finished polygonal specimen is detected by the sensor, and the parallelism of two relative edges of the finished polygonal specimen is judged to determine the accuracy of the polygonal specimen.

5. A detection system for a blade machining center detection method according to any one of claims 1 to 4, characterized in that: include: A first sensor for detecting movement parameters of the clamping structure; The second sensor is used to detect the displacement data during the processing of the polygonal specimen and the three-dimensional data of the finished polygonal specimen; A controller is electrically connected to the first sensor and the second sensor, and the controller is used to: Obtaining movement instructions issued to the driving structure and movement parameters of the clamping structure; Determining the accuracy of the drive structure by comparing the movement instruction with the movement parameter; Obtaining a preset three-dimensional model, displacement data during the processing of the polygonal specimen, and three-dimensional data of the finished polygonal specimen; The accuracy of the polygonal specimen is determined by comparing the displacement data and / or the three-dimensional model with the three-dimensional data.

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