Quality control and detection method, device, equipment and medium for catheter flaring forming

Abstract

The present invention provides a method, device, equipment and storage medium for quality control and detection of catheter flaring forming. The method includes: measuring the end face runout and radial runout of the main shaft of the catheter flaring equipment to calibrate the catheter flaring equipment; selecting a detection rod that meets the detection requirements, obtaining the coaxiality of the detection rod, and calibrating the detection rod; connecting the calibrated detection rod and the calibrated catheter flaring equipment according to the detection requirements, obtaining the coaxiality of the main shaft relative to the detection rod and the angular deviation of the main shaft relative to the detection rod, and calibrating the connection method; processing the catheter based on the calibrated catheter flaring equipment and the calibrated connection method, obtaining the angular deviation of the axis of the catheter cone surface of the flared catheter relative to the catheter center line and the flaring angle, and determining the qualification of the flared catheter. The method for quality control and detection of catheter flaring forming provided by the present invention can make up for the lack of detection means for the processing accuracy of the flaring equipment in the prior art and improve the quality of catheter flaring forming.

Description

Technical Field

[0001] The present invention relates to the technical field of catheter flaring detection and control, and particularly relates to a method, device, equipment and medium for quality control and detection of catheter flaring forming. Background Art

[0002] The 74° flaring connection is widely used in the pipeline systems of various types of aircraft in our country. Common aircraft hydraulic systems, lubricating oil systems, fuel system pipelines, etc. are all 74° flaring connections.

[0003] The reliability of the 74° flaring connection is closely related to the quality of the catheter end flaring forming. The catheter flaring forming is generally processed by means of a three-axis or five-axis needle roller equipment. According to HB 4-52-2002 "Catheter Flaring", when the catheter end is flared and formed, the angular deviation of the conical surface axis of the catheter flaring part relative to the catheter center line should not exceed 1°30', and the flaring angle is 72° - 74°. In the prior art, there is no detection means for the processing accuracy of the flaring equipment, no effective measurement method for the angular deviation of 1°30' of the flared product, and the flaring angle can only be visually compared with an angle template relying on experience.

[0004] In summary, in the prior art, there is a lack of detection means for the processing accuracy of the flaring equipment and a high-precision measurement method for the angular deviation of the flared product. Summary of the Invention

[0005] In view of this, it is necessary to provide a method, device, equipment and medium for quality control and detection of catheter flaring forming to make up for the lack of detection means for the processing accuracy of the flaring equipment and the high-precision measurement method for the angular deviation of the flared product in the prior art.

[0006] To solve the above technical problems, on the one hand, the present invention provides a method for quality control and detection of catheter flaring forming, including:

[0007] Measuring the end face runout and radial runout of the spindle of the catheter flaring equipment, and calibrating the catheter flaring equipment according to the end face runout and radial runout of the spindle and the first standard value and the second standard value to obtain a calibrated catheter flaring equipment;

[0008] Selecting a detection rod that meets the detection requirements, obtaining the coaxiality of the detection rod, and adjusting the detection rod according to the coaxiality and the third standard value to obtain a calibrated detection rod;

[0009] Connecting the calibrated detection rod and the calibrated catheter flaring equipment according to the detection requirements, obtaining the coaxiality of the spindle relative to the detection rod and the angular deviation of the spindle relative to the detection rod, and calibrating the connection method according to the fourth standard value and the fifth standard value to obtain a calibrated connection method;

[0010] Process a catheter based on the calibrated catheter flaring device and the calibrated connection method, obtain a three-dimensional model of the flared catheter, and calculate the angular deviation of the catheter cone axis relative to the catheter center line and the flaring angle of the flared catheter according to the three-dimensional model;

[0011] Determine the qualification status of the flared catheter according to the angular deviation of the catheter cone axis relative to the catheter center line and the flaring angle of the flared catheter.

[0012] In some possible implementation manners, the calibration of the catheter flaring device according to the spindle end face runout and the spindle radial runout with the first standard value and the second standard value to obtain the calibrated catheter flaring device includes:

[0013] Control the spindle end face runout according to the first standard value so that the spindle end face runout is not greater than 0.033 mm;

[0014] Control the spindle radial runout according to the second standard value so that the spindle radial runout is not greater than 0.155 mm;

[0015] Calibrate the catheter flaring device by controlling the ranges of the spindle end face runout and the spindle radial runout to obtain the calibrated catheter flaring device.

[0016] In some possible implementation manners, the adjustment of the inspection rod according to the coaxiality with the third standard value to obtain the calibrated inspection rod includes:

[0017] Adjust the coaxiality of the inspection rod according to the third standard value so that the coaxiality is not greater than 0.65% of the pipe diameter;

[0018] Adjust the inspection rod by adjusting the pipe diameter range of the inspection rod to obtain the calibrated inspection rod.

[0019] In some possible implementation manners, the connection of the calibrated inspection rod and the calibrated catheter flaring device according to the detection requirements to obtain the coaxiality of the spindle relative to the inspection rod and the angular deviation of the spindle relative to the inspection rod includes:

[0020] Clamp the calibrated inspection rod on the calibrated flaring device with a half mold according to the detection requirements, and determine the coaxiality of the spindle relative to the inspection rod according to the dial indicator reading;

[0021] Perform three-dimensional modeling on the catheter spindle, the flaring rod, and the calibrated inspection rod to form calibrated point cloud data;

[0022] Fit the calibrated point cloud data to form a calibrated three-dimensional model of the spindle, the flaring rod, and the calibrated inspection rod, and determine the three-dimensional coordinates of the two end points of the center lines of the spindle and the flaring rod and the three-dimensional coordinates of the two end points of the inspection rod;

[0023] The angular deviation of the main shaft relative to the detection rod is calculated by the three-dimensional coordinates of the two end points of the center line of the main shaft and the flaring rod, the three-dimensional coordinates of the two end points of the detection rod, and a preset angular deviation algorithm.

[0024] In some possible implementation manners, calibrating the connection manner according to the fourth standard value and the fifth standard value to obtain a calibrated connection manner includes:

[0025] Adjusting the coaxiality of the main shaft relative to the detection rod according to the fourth standard value so that the coaxiality of the main shaft relative to the detection rod is not greater than 0.155 mm;

[0026] Adjusting the angular deviation of the main shaft relative to the detection rod according to the fifth standard value so that the angular deviation of the main shaft relative to the detection rod does not exceed 1°30';

[0027] By controlling the range of the coaxiality of the main shaft relative to the detection rod and the angular deviation of the main shaft relative to the detection rod, adjusting the connection manner between the calibration detection rod and the calibration catheter flaring device to obtain the calibrated connection manner.

[0028] In some possible implementation manners, obtaining a three-dimensional model of the flared catheter, and calculating the angular deviation of the axis of the catheter conical surface relative to the catheter center line and the flaring angle of the flared catheter according to the three-dimensional model includes:

[0029] Cutting the flared catheter along the axis, modeling the catheter end of the flared catheter, forming point cloud data and then fitting to obtain a three-dimensional model of the conical surface of the flared catheter and the catheter straight section cylinder;

[0030] Establishing the center line of the conical surface in the three-dimensional model, establishing a plane through the center line of the conical surface, and the included angle between the intersection line of the plane and the conical surface is the flaring angle;

[0031] Establishing the center line of the catheter straight section cylinder in the three-dimensional model, recording the three-dimensional coordinates of the two end points of the conical surface center line and the cylinder center line, and obtaining the angular deviation of the axis of the catheter conical surface relative to the catheter center line according to a preset angular deviation algorithm.

[0032] In some possible implementation manners, determining the qualified condition of the flared catheter according to the angular deviation of the axis of the catheter conical surface relative to the catheter center line and the flaring angle of the flared catheter includes:

[0033] When the angular deviation of the axis of the catheter conical surface relative to the catheter center line of the flared catheter does not exceed 1°30' and the flaring angle is between 72° and 74°, the flared catheter is qualified, and when other situations occur, the flared catheter is unqualified.

[0034] On the other hand, the present invention also provides a device for controlling and detecting the quality of catheter flaring forming, including:

[0035] A catheter flaring equipment calibration module is used to measure the end face runout and radial runout of the main shaft of the catheter flaring equipment, and calibrate the catheter flaring equipment according to the end face runout and radial runout of the main shaft and the first standard value and the second standard value to obtain a calibrated catheter flaring equipment;

[0036] A test bar calibration module is used to select a test bar that meets the test requirements, obtain the coaxiality of the test bar, and adjust the test bar according to the coaxiality and the third standard value to obtain a calibrated test bar;

[0037] A connection calibration module is used to connect the calibrated test bar and the calibrated catheter flaring equipment according to the test requirements, obtain the coaxiality of the main shaft relative to the test bar and the angular deviation of the main shaft relative to the test bar, and calibrate the connection method according to the fourth standard value and the fifth standard value to obtain a calibrated connection method;

[0038] A production error calculation module is used to process a catheter based on the calibrated catheter flaring equipment and the calibrated connection method, obtain a three-dimensional model of the flared catheter, and calculate the angular deviation of the axis of the catheter conical surface of the processed product relative to the catheter center line and the flaring angle according to the three-dimensional model;

[0039] A qualified determination module is used to determine the qualification status of the flared catheter according to the angular deviation of the axis of the catheter conical surface of the flared catheter relative to the catheter center line and the flaring angle.

[0040] On the other hand, the present invention also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the catheter flaring forming quality control and detection method described in the above implementation manner is implemented.

[0041] Finally, the present invention also provides a computer-readable storage medium, on which a computer program is stored. The program is characterized in that when it is executed by a processor, the catheter flaring forming quality control and detection method described in the above implementation manner is implemented.

[0042] The beneficial effects of adopting the above embodiments are as follows: For the catheter flaring forming quality control and detection method provided by the present invention, on the one hand, the processing accuracy of the flaring equipment is detected through the radial runout of the main shaft, end face runout detection, the main shaft relative to the test bar, etc., and the flaring equipment can be adjusted according to the detection results, improving the processing accuracy of the processed product. On the other hand, through the detection of various data of the processed product, it can ensure that the quality of the equipment flared processed product meets the technical requirements and improve the flaring forming quality. Description of the Drawings

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0044] Figure 1 It is a schematic flowchart of an embodiment of the catheter flaring forming quality control and detection method provided by the present invention;

[0045] Figure 2 It is a schematic diagram of an embodiment of the catheter flaring provided by the present invention;

[0046] Figure 3 It is a schematic diagram of an embodiment of the main shaft measurement provided by the present invention;

[0047] Figure 4 It is a schematic diagram of an embodiment of the three-dimensional model of the flaring machine provided by the present invention;

[0048] Figure 5 It is a schematic structural diagram of an embodiment of the catheter flaring forming quality control and detection device provided by the present invention;

[0049] Figure 6 It is a schematic structural diagram of an embodiment of the electronic device provided by the present invention. Detailed Embodiments

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0051] It should be understood that the schematic drawings are not drawn to scale. The flowcharts used in the present invention illustrate the operations implemented according to some embodiments of the present invention. It should be understood that the operations in the flowchart may not be implemented in sequence, and steps without logical context relationships may be reversed or implemented simultaneously. In addition, those skilled in the art can add one or more other operations to the flowchart or remove one or more operations from the flowchart under the guidance of the content of the present invention.

[0052] Some of the block diagrams shown in the drawings are functional entities, which do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor systems and / or microcontroller systems.

[0053] As used herein, the mention of "embodiment" means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0054] The following will separately describe specific embodiments in detail. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments.

[0055] Before describing the specific embodiments, the inventive concept of the present invention is explained:

[0056] In the prior art, during the process of catheter flaring forming, equipment errors are not detected and controlled, the angular deviation of the conical surface axis of the product flare relative to the catheter center line after processing is not measured, and the flare angle depends only on visual comparison, resulting in a large error. The uncertainties of the above factors make it impossible to guarantee the quality of the processed product. The present invention aims to propose a method for quality control and detection of catheter flaring forming, which can make up for the lack of detection means for the processing accuracy of the flaring equipment in the prior art and improve the quality of catheter flaring forming.

[0057] The embodiments of the present invention provide a method, device, equipment, and storage medium for quality control and detection of catheter flaring forming.

[0058] As Figure 1 shown, Figure 1 is a schematic flowchart of an embodiment of the method for quality control and detection of catheter flaring forming provided by the present invention. The method for quality control and detection of catheter flaring forming includes:

[0059] S101. Measure the end face runout and radial runout of the spindle of the catheter flaring equipment, and calibrate the catheter flaring equipment according to the end face runout and radial runout and the first standard value and the second standard value to obtain a calibrated catheter flaring equipment;

[0060] S102. Select a detection rod that meets the detection requirements, obtain the coaxiality of the detection rod, and adjust the detection rod according to the coaxiality and the third standard value to obtain a calibrated detection rod;

[0061] S103. Connect the calibrated detection rod and the calibrated catheter flaring equipment according to the detection requirements, obtain the coaxiality of the spindle relative to the detection rod and the angular deviation of the spindle relative to the detection rod, and calibrate the connection method according to the fourth standard value and the fifth standard value to obtain a calibrated connection method;

[0062] S104. Process the catheter based on the calibrated catheter flaring device and the calibrated connection method, obtain the 3D model of the flared catheter, and calculate the angular deviation of the catheter cone axis relative to the catheter center line and the flaring angle of the flared catheter according to the 3D model.

[0063] S105. Determine the qualification status of the flared catheter according to the angular deviation of the catheter cone axis relative to the catheter center line and the flaring angle of the flared catheter. Among them, the type of the global optimal solution parameter corresponds to the type of the parameter to be measured.

[0064] Compared with the prior art, the catheter flaring forming quality control and detection method provided by the present invention, on the one hand, detects the processing accuracy of the flaring device through spindle radial runout, end face runout detection, spindle relative to the detection rod, etc., and can adjust the flaring device according to the detection results to improve the processing accuracy of the processed products. On the other hand, through the detection of various data of the processed products, it can ensure that the quality of the products flared by the device meets the technical requirements and improve the flaring forming quality.

[0065] Optionally, in some embodiments of the present invention, in step S101, calibrating the catheter flaring device according to the spindle end face runout and spindle radial runout with the first standard value and the second standard value to obtain the calibrated catheter flaring device includes:

[0066] Control the spindle end face runout according to the first standard value so that the spindle end face runout is not greater than 0.033 mm;

[0067] Control the spindle radial runout according to the second standard value so that the spindle radial runout is not greater than 0.155 mm;

[0068] Calibrate the catheter flaring device by controlling the ranges of the spindle end face runout and spindle radial runout to obtain the calibrated catheter flaring device.

[0069] Optionally, in specific embodiments of the present invention, as Figure 2 shown, Figure 2 is a schematic diagram of an embodiment of catheter flaring provided by the present invention. The reliability of the 74° flared connection is closely related to the forming quality of the catheter end flaring. The catheter end flaring is generally processed by means of a three-axis or five-axis rolling needle device. HB4-52-2002 "Catheter Flaring" requires that when the catheter end is flared, the angular deviation of the cone axis of the catheter flaring part relative to the catheter center line should not exceed 1°30′, and the flaring angle is 72° - 74°.

[0070] As Figure 3 shown, Figure 3Schematic diagram of an embodiment of the spindle measurement provided by the present invention. Measure the end face runout of the spindle at a position about 4 mm away from the outer edge of the spindle. First, fix the magnetic base on the equipment, clamp the dial indicator, adjust the base and the dial indicator so that the needle of the dial indicator is perpendicular to the end face of the spindle, press the needle of the dial indicator not exceeding one-third of the range of the dial indicator, slowly rotate the spindle of the machine tool one week, read the maximum and minimum readings of the dial indicator, and the difference is the end face runout D 测 。

[0071] Measure the radial runout of the spindle at a position about 4 mm away from the end face of the spindle. Use the same method as measuring the end face runout, make the measuring head of the dial indicator make the needle of the dial indicator as perpendicular as possible to the axis of the spindle, press the needle of the dial indicator not exceeding one-third of the range of the dial indicator, slowly rotate the spindle of the machine tool one week, read the maximum and minimum readings of the dial indicator, and the difference is the radial runout J of the spindle 测 。

[0072] The radial runout and end face runout of the spindle directly affect the angle and roundness of the catheter flare. Excessive errors will lead to a decrease in the structural strength and sealing performance of the flare. When the flaring equipment processes the catheter, the smaller the diameter of the catheter, the higher the accuracy requirements for the equipment. The processing range of the catheter outer diameter is generally 6 mm to 35 mm. Therefore, if the equipment accuracy meets the flaring processing of a 6 mm catheter, it can be considered that the equipment accuracy meets the requirements. Except that the angle deviation of the conical surface axis of the flare relative to the center line of the catheter should not exceed 1°30′ as required by the navigation mark and the flaring angle is 72° to 74°, the technical conditions generally require that the distance from the vertex of the flare cone to the center line of the catheter should be less than 2.5% of the outer diameter of the catheter. Therefore, the maximum allowable value J of the radial runout of the spindle max is:

[0073]

[0074] wherein, d0 is the outer diameter of the catheter, L2 is the distance from the tail end of the spindle to the vertex of the flaring rod, and L1 is the distance from the tail end of the spindle to the radial runout measurement point

[0075] Measure and calculate the in-factory equipment according to the above scheme. The measured radial runout of the spindle should be controlled within the range of the second standard value (0.155 mm), and the end face runout D of the spindle max Calculated according to the diameter and length ratio, it should be controlled within the range of the first standard value (0.033 mm).

[0076] Further, in some embodiments of the present invention, in step S102, according to the coaxiality and the third standard value, adjust the detection rod to obtain a calibrated detection rod, including:

[0077] Adjust the coaxiality of the detection rod according to the third standard value so that the coaxiality is not greater than 0.65% of the diameter of the pipe material

[0078] Adjust the detection rod by adjusting the pipe diameter range of the detection rod to obtain the calibrated detection rod.

[0079] Optionally, in a specific embodiment of the present invention, a stainless steel pipe with a length of 100 mm is intercepted as the detection rod (the pipe diameter is selected according to the detection requirements). Since there are shape errors in the pipe itself, before using it as the detection rod, it is necessary to detect the shape error of the pipe. With the help of a three-dimensional laser scanner, the detection rod is scanned and modeled, and the coaxiality of the pipe is detected by software. The coaxiality should not be greater than the third standard value, that is, 0.65% of the pipe diameter.

[0080] Further, in some embodiments of the present invention, in step S103, connect the calibrated detection rod and the calibrated catheter flaring device according to the detection requirements, and obtain the coaxiality of the main shaft relative to the detection rod and the angular deviation of the main shaft relative to the detection rod, including:

[0081] Clamp the calibrated detection rod on the calibrated flaring device with a semi-mold according to the detection requirements, and determine the coaxiality of the main shaft relative to the detection rod according to the reading of the dial indicator;

[0082] Perform three-dimensional modeling on the catheter main shaft, the flaring rod, and the calibrated detection rod to form calibrated point cloud data;

[0083] Fit the calibrated point cloud data to form a calibrated three-dimensional model of the main shaft, the flaring rod, and the calibrated detection rod, and determine the three-dimensional coordinates of the two end points of the center lines of the main shaft and the flaring rod and the three-dimensional coordinates of the two end points of the detection rod;

[0084] Calculate the angular deviation of the main shaft relative to the detection rod through the three-dimensional coordinates of the two end points of the center lines of the main shaft and the flaring rod, the three-dimensional coordinates of the two end points of the detection rod, and a preset angular deviation algorithm.

[0085] Calibrate the connection method according to the fourth standard value and the fifth standard value to obtain the calibrated connection method, including:

[0086] Adjust the coaxiality of the main shaft relative to the detection rod according to the fourth standard value, so that the coaxiality of the main shaft relative to the detection rod is not greater than 0.155 mm;

[0087] Adjust the angular deviation of the main shaft relative to the detection rod according to the fifth standard value, so that the angular deviation of the main shaft relative to the detection rod does not exceed 1°30';

[0088] Adjust the connection method of the calibrated detection rod and the calibrated catheter flaring device by controlling the range of the coaxiality of the main shaft relative to the detection rod and the angular deviation of the main shaft relative to the detection rod to obtain the calibrated connection method.

[0089] Optionally, in a specific embodiment of the present invention, a qualified test rod is clamped on the flaring machine by a semi-mold, the dial indicator base is adsorbed on the main shaft, the position of the dial indicator is adjusted until it contacts the surface of the test rod and is perpendicular to it, the pressure on the needle of the dial indicator does not exceed one-third of the range of the dial indicator, the main shaft is rotated within the maximum range, the maximum and minimum readings of the dial indicator are read, and half of the difference is the coaxiality error of the main shaft relative to the test rod.

[0090] The coaxiality error of the main shaft relative to the test rod directly affects the angular deviation of the conical surface axis of the flared part of the catheter relative to the center line of the catheter. Excessive coaxiality error will cause the flare to skew and even crack. Through statistical analysis, the coaxiality error of the main shaft relative to the test rod can refer to J max , after measuring and calculating the in-plant equipment, the coaxiality of the main shaft of the in-plant equipment relative to the test rod should be within the range of the fourth standard value (0.15 mm). Due to the limitations of the size of the dial indicator and the dial indicator base, when rotating the main shaft for measurement, the rotation angle is limited and effective measurement cannot be carried out within 360°, resulting in certain uncertainty in the measurement data. It is necessary to use three-dimensional scanning and modeling to re-detect and verify the angular deviation of the equipment.

[0091] Clamp a qualified test rod on the flaring machine with a semi-mold, use a laser scanning device to perform three-dimensional modeling on the catheter main shaft, the flaring rod, and the test rod to form point cloud data, fit the point cloud data to form a three-dimensional solid model of the main shaft, the flaring rod, and the test rod, determine the center lines of each entity, and read the three-dimensional coordinates of the two end points A and B of the center lines of the main shaft and the flaring rod and the coordinates of the two end points C and D of the test rod, as Figure 4 shown. Figure 4 FIG. is a schematic diagram of an embodiment of the three-dimensional model of the flaring machine provided by the present invention. The angular deviation of the main shaft relative to the test rod can be measured through the following formula.

[0092] Let the coordinates of points A, B, C, and D be: A(X1, Y1, Z1), B(X2, Y2, Z2), C(X3, Y3, Z3), D(X4, Y4, Z4)

[0093]

[0094]

[0095]

[0096]

[0097]

[0098] By calculating the cosine value of the included angle through the above formula, the included angle can be obtained. According to the requirements of the navigation mark, the angular deviation should not exceed the fifth standard value (1°30′).

[0099] In the embodiments of the present invention, the flaring device itself is calibrated, and the connection mode between the flaring device and the processing device is calibrated by a calibrated detection rod, so that the errors of the device are detected and controlled, providing a basis for improving the processing quality of the device.

[0100] Further, in some embodiments of the present invention, in steps S104 and S105, calculating the angle deviation between the axis of the conical surface of the flared catheter and the center line of the catheter and the flaring angle according to the three-dimensional model includes:

[0101] Cut the flared catheter along the axis, model the catheter end of the flared catheter, form point cloud data and then perform fitting to obtain a three-dimensional model of the conical surface of the flared catheter and the cylindrical body of the catheter straight section;

[0102] Establish the center line of the conical surface in the three-dimensional model, establish a plane through the center line of the conical surface, and the angle of the intersection line of the plane and the conical surface is the flaring angle;

[0103] Establish the center line of the cylindrical body of the catheter straight section in the three-dimensional model, record the three-dimensional coordinates of the two end points of the conical surface center line and the cylindrical body center line, and obtain the angle deviation between the axis of the conical surface of the catheter and the center line of the catheter according to a preset angle deviation algorithm.

[0104] Determining the qualification status of the flared catheter according to the angle deviation between the axis of the conical surface of the flared catheter and the center line of the catheter and the flaring angle includes:

[0105] When the angle deviation between the axis of the conical surface of the flared catheter and the center line of the catheter does not exceed 1°30′ and the flaring angle is between 72° and 74°, the flared catheter is qualified; when other situations occur, the flared catheter is unqualified.

[0106] Optionally, in a specific embodiment of the present invention, first select a pipe according to needs for flaring. After the flaring is completed, cut the catheter along the axis with a wire cutting machine, model the catheter end with a three-dimensional laser scanner, form point cloud data and then perform fitting to form a three-dimensional solid model of the bell mouth conical surface and the cylindrical body of the catheter straight section.

[0107] Establish the center line of the conical surface in the three-dimensional solid model, establish a plane through the center line of the conical surface, and the angle of the intersection line of the plane and the conical surface is the flaring angle. Establish the center line of the cylinder in the three-dimensional solid model, record the three-dimensional coordinates of the two end points of the conical surface center line and the cylinder center line, and also use the formula to obtain the angle deviation.

[0108] The summary of the detection and control requirements is as follows in the table:

[0109]

[0110]

[0111] When the angular deviation between the axis of the conical surface of the flared catheter and the center line of the catheter does not exceed 1°30′ and the flaring angle is between 72° and 74°, the flared catheter is qualified; when other situations occur, the flared catheter is unqualified.

[0112] In the embodiments of the present invention, through the detection of the radial runout of the main shaft, the end face runout, the coaxiality of the main shaft relative to the detection rod, and various data of the processed products, the quality of the flaring processing of the equipment can be ensured to meet the technical requirements. According to the frequency of the products processed by the equipment, the detection period of the equipment is determined. The detection of the processed products is carried out according to the plan. One to two specifications are selected for inspection every month, and the twelve inspections per year cover all specifications of the catheter. By formulating a detection plan and regularly detecting various data of the equipment and the processed products, the quality of the flared forming can be ensured.

[0113] In order to better implement the quality control and detection of a catheter flaring forming in the embodiments of the present invention, correspondingly, on the basis of the quality control and detection of the catheter flaring forming, the embodiments of the present invention further provide a quality control and detection device for catheter flaring forming, as Figure 3 shown, the quality control and detection device 500 for catheter flaring forming includes:

[0114] A catheter flaring equipment calibration module 501, configured to measure the end face runout and the radial runout of the main shaft of the catheter flaring equipment, and calibrate the catheter flaring equipment according to the end face runout and the radial runout of the main shaft and the first standard value and the second standard value to obtain a calibrated catheter flaring equipment;

[0115] A detection rod calibration module 502, configured to select a detection rod that meets the detection requirements, obtain the coaxiality of the detection rod, and adjust the detection rod according to the coaxiality and the third standard value to obtain a calibrated detection rod;

[0116] A connection calibration module 503, configured to connect the calibrated detection rod and the calibrated catheter flaring equipment according to the detection requirements, obtain the coaxiality of the main shaft relative to the detection rod and the angular deviation of the main shaft relative to the detection rod, and calibrate the connection method according to the fourth standard value and the fifth standard value to obtain a calibrated connection method;

[0117] A production error calculation module 504, configured to process a catheter based on the calibrated catheter flaring equipment and the calibrated connection method, obtain a three-dimensional model of the flared catheter, and calculate the angular deviation between the axis of the conical surface of the catheter of the processed product and the center line of the catheter and the flaring angle according to the three-dimensional model;

[0118] A pass / fail determination module 505 is configured to determine the pass / fail status of the flared catheter based on the angular deviation of the axis of the catheter taper surface of the flared catheter relative to the catheter center line and the flaring angle.

[0119] The catheter flaring forming quality control and detection device 500 provided in the above embodiment can implement the technical solutions described in the above embodiments of a method for controlling and detecting the quality of catheter flaring forming. The specific implementation principles of the above modules or units can be referred to the corresponding content in the above embodiments of a method for controlling and detecting the quality of catheter flaring forming, which will not be elaborated here.

[0120] As Figure 6 shown, the present invention also correspondingly provides an electronic device 600. The electronic device 600 includes a processor 601, a memory 602, and a display 603. Figure 6 Only some components of the electronic device 600 are shown, but it should be understood that it is not required to implement all the shown components, and more or fewer components can be alternatively implemented.

[0121] In some embodiments, the processor 601 can be a central processing unit (CPU), a microprocessor, or other data processing chips, and is used to run the program code stored in the memory 602 or process data, such as the catheter flaring forming quality control and detection program in the present invention.

[0122] In some embodiments, the processor 601 can be a single server or a server group. The server group can be centralized or distributed. In some embodiments, the processor 601 can be local or remote. In some embodiments, the processor 601 can be implemented on a cloud platform. In one embodiment, the cloud platform can include a private cloud, a public cloud, a hybrid cloud, a community cloud, a distributed cloud, an internal cloud, a multi-cloud, etc., or any combination of the above.

[0123] In some embodiments, the memory 602 can be an internal storage unit of the electronic device 600, such as the hard disk or memory of the electronic device 600. In some other embodiments, the memory 602 can also be an external storage device of the electronic device 600, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the electronic device 600.

[0124] Furthermore, the memory 602 can also include both the internal storage unit and the external storage device of the electronic device 600. The memory 602 is used to store the application software installed on the electronic device 600 and various types of data.

[0125] The display 603 can be an LED display, a liquid crystal display, a touch liquid crystal display, an OLED (Organic Light-Emitting Diode) touch device, etc. in some embodiments. The display 603 is used to display the information in the electronic device 600 and to display a visual user interface. The components 601 - 603 of the electronic device 600 communicate with each other via a system bus.

[0126] In one embodiment, when the processor 601 executes the catheter flaring quality control and detection program in the memory 602, the following steps can be implemented:

[0127] Measure the end face runout and radial runout of the main shaft of the catheter flaring device, and calibrate the catheter flaring device according to the end face runout and radial runout of the main shaft and the first standard value and the second standard value to obtain a calibrated catheter flaring device;

[0128] Select a detection rod that meets the detection requirements, obtain the coaxiality of the detection rod, and adjust the detection rod according to the coaxiality and the third standard value to obtain a calibrated detection rod;

[0129] Connect the calibrated detection rod and the calibrated catheter flaring device according to the detection requirements, obtain the coaxiality of the main shaft relative to the detection rod and the angular deviation of the main shaft relative to the detection rod, and calibrate the connection method according to the fourth standard value and the fifth standard value to obtain a calibrated connection method;

[0130] Process the catheter based on the calibrated catheter flaring device and the calibrated connection method, obtain a three-dimensional model of the flared catheter, and calculate the angular deviation of the axis of the catheter cone surface of the flared catheter relative to the catheter center line and the flaring angle according to the three-dimensional model;

[0131] Determine the pass / fail status of the flared catheter according to the angular deviation of the axis of the catheter cone surface of the flared catheter relative to the catheter center line and the flaring angle.

[0132] It should be understood that when the processor 601 executes the catheter flaring quality control and detection program in the memory 602, in addition to the above functions, other functions can also be implemented. For specific details, please refer to the description of the corresponding method embodiments above.

[0133] Furthermore, the embodiments of the present invention do not specifically limit the type of the mentioned electronic device 600. The electronic device 600 may be a mobile phone, a tablet computer, a personal digital assistant (PDA), a wearable device, a laptop, or other portable electronic devices. Exemplary embodiments of the portable electronic device include, but are not limited to, portable electronic devices running IOS, android, microsoft, or other operating systems. The above-mentioned portable electronic device may also be other portable electronic devices, such as a laptop with a touch-sensitive surface (such as a touch panel). It should also be understood that in some other embodiments of the present invention, the electronic device 600 may not be a portable electronic device, but a desktop computer with a touch-sensitive surface (such as a touch panel).

[0134] Correspondingly, an embodiment of the present application further provides a computer-readable storage medium. The computer-readable storage medium is used to store computer-readable programs or instructions. When the programs or instructions are executed by a processor, the steps or functions in the catheter flaring quality control and detection method provided by the above-mentioned method embodiments can be implemented.

[0135] Those skilled in the art can understand that all or part of the processes of implementing the methods in the above embodiments can be completed by instructing relevant hardware (such as a processor, a controller, etc.) through a computer program. The computer program can be stored in a computer-readable storage medium. Among them, the computer-readable storage medium is a magnetic disk, an optical disk, a read-only memory, or a random access memory, etc.

[0136] The above has introduced in detail a catheter flaring quality control and detection method, device, equipment, and storage medium provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A method for quality control and detection of catheter flaring forming, characterized in that, Including: Measuring the end face runout and radial runout of the spindle of the catheter flaring device, and calibrating the catheter flaring device according to the end face runout and radial runout of the spindle and the first standard value and the second standard value to obtain a calibrated catheter flaring device; Selecting a test bar that meets the detection requirements, obtaining the coaxiality of the test bar, and adjusting the test bar according to the coaxiality and the third standard value to obtain a calibrated test bar; Connecting the calibrated test bar and the calibrated catheter flaring device according to the detection requirements, obtaining the coaxiality of the spindle relative to the test bar and the angular deviation of the spindle relative to the test bar, and calibrating the connection method according to the fourth standard value and the fifth standard value to obtain a calibrated connection method; Processing the catheter based on the calibrated catheter flaring device and the calibrated connection method, obtaining a three-dimensional model of the flared catheter, and calculating the angular deviation of the axis of the catheter cone surface of the flared catheter relative to the catheter center line and the flaring angle according to the three-dimensional model; Determining the qualification status of the flared catheter according to the angular deviation of the axis of the catheter cone surface of the flared catheter relative to the catheter center line and the flaring angle; The connecting the calibrated test bar and the calibrated catheter flaring device according to the detection requirements, obtaining the coaxiality of the spindle relative to the test bar and the angular deviation of the spindle relative to the test bar includes: Clamping the calibrated test bar on the calibrated flaring device with a half mold according to the detection requirements, and determining the coaxiality of the spindle relative to the test bar according to the dial indicator reading; Performing three-dimensional modeling on the catheter spindle, flaring rod, and calibrated test bar to form calibrated point cloud data; Fitting the calibrated point cloud data to form a calibrated three-dimensional model of the spindle, flaring rod, and calibrated test bar, and determining the three-dimensional coordinates of the two end points of the center lines of the spindle and the flaring rod and the three-dimensional coordinates of the two end points of the test bar; Calculating the angular deviation of the spindle relative to the test bar through the three-dimensional coordinates of the two end points of the center lines of the spindle and the flaring rod, the three-dimensional coordinates of the two end points of the test bar, and a preset angular deviation algorithm; The connecting the calibrated test bar and the calibrated catheter flaring device according to the detection requirements, obtaining the coaxiality of the spindle relative to the test bar and the angular deviation of the spindle relative to the test bar includes: Clamping the calibrated test bar on the calibrated flaring device with a half mold according to the detection requirements, and determining the coaxiality of the spindle relative to the test bar according to the dial indicator reading; Performing three-dimensional modeling on the catheter spindle, flaring rod, and calibrated test bar to form calibrated point cloud data; Fitting the calibrated point cloud data to form a calibrated three-dimensional model of the spindle, flaring rod, and calibrated test bar, and determining the three-dimensional coordinates of the two end points of the center lines of the spindle and the flaring rod and the three-dimensional coordinates of the two end points of the test bar; Calculating the angular deviation of the spindle relative to the test bar through the three-dimensional coordinates of the two end points of the center lines of the spindle and the flaring rod, the three-dimensional coordinates of the two end points of the test bar, and a preset angular deviation algorithm.

2. The quality control and detection method for catheter flaring forming according to claim 1, characterized in that The calibrating the catheter flaring device according to the end face runout and radial runout of the spindle and the first standard value and the second standard value to obtain a calibrated catheter flaring device includes: Controlling the end face runout of the spindle according to the first standard value so that the end face runout of the spindle is not greater than 0.033 mm; Controlling the radial runout of the spindle according to the second standard value so that the radial runout of the spindle is not greater than 0.155 mm; Calibrate the catheter flaring device by controlling the range of the spindle end face runout and the spindle radial runout to obtain the calibrated catheter flaring device.

3. The catheter flaring forming quality control and detection method according to claim 1, characterized in that Adjust the inspection rod according to the coaxiality and the third standard value to obtain a calibrated inspection rod, including: Adjust the coaxiality of the inspection rod according to the third standard value so that the coaxiality is not greater than 0.65% of the pipe diameter; Adjust the inspection rod by adjusting the pipe diameter range of the inspection rod to obtain the calibrated inspection rod.

4. The quality control and detection method for catheter flaring forming according to claim 1, characterized in that Calibrate the connection method according to the fourth standard value and the fifth standard value to obtain a calibrated connection method, including: Adjust the coaxiality of the spindle relative to the inspection rod according to the fourth standard value so that the coaxiality of the spindle relative to the inspection rod is not greater than 0.155 mm; Adjust the angular deviation of the spindle relative to the inspection rod according to the fifth standard value so that the angular deviation of the spindle relative to the inspection rod does not exceed 1°30'; Adjust the connection method of the calibrated inspection rod and the calibrated catheter flaring device by controlling the range of the coaxiality of the spindle relative to the inspection rod and the angular deviation of the spindle relative to the inspection rod to obtain the calibrated connection method.

5. The quality control and detection method for catheter flaring forming according to claim 1, characterized in that, Determine the qualification of the flared catheter according to the angular deviation of the catheter conical surface axis relative to the catheter center line and the flaring angle of the flared catheter, including: When the angular deviation of the catheter conical surface axis relative to the catheter center line of the flared catheter does not exceed 1°30' and the flaring angle is between 72° and 74°, the flared catheter is qualified; when other situations occur, the flared catheter is unqualified.

6. A device for quality control and detection of catheter flaring forming, characterized in that, Including: A catheter flaring device calibration module for measuring the spindle end face runout and the spindle radial runout of the catheter flaring device, and calibrating the catheter flaring device according to the spindle end face runout and the spindle radial runout and the first standard value and the second standard value to obtain a calibrated catheter flaring device; An inspection rod calibration module for selecting an inspection rod that meets the inspection requirements, obtaining the coaxiality of the inspection rod, and adjusting the inspection rod according to the coaxiality and the third standard value to obtain a calibrated inspection rod; A connection calibration module for connecting the calibrated inspection rod and the calibrated catheter flaring device according to the inspection requirements, obtaining the coaxiality of the spindle relative to the inspection rod and the angular deviation of the spindle relative to the inspection rod, and calibrating the connection method according to the fourth standard value and the fifth standard value to obtain a calibrated connection method; A production error calculation module for processing a catheter based on the calibrated catheter flaring device and the calibrated connection method, obtaining a three-dimensional model of the flared catheter, and calculating the angular deviation of the catheter conical surface axis relative to the catheter center line and the flaring angle of the flared catheter according to the three-dimensional model; A qualification determination module for determining the qualification of the flared catheter according to the angular deviation of the catheter conical surface axis relative to the catheter center line and the flaring angle of the flared catheter; Connect the calibrated inspection rod and the calibrated catheter flaring device according to the inspection requirements, and obtain the coaxiality of the spindle relative to the inspection rod and the angular deviation of the spindle relative to the inspection rod, including: Clamp the calibrated inspection rod on the calibrated flaring device with a half mold according to the inspection requirements, and determine the coaxiality of the spindle relative to the inspection rod according to the dial indicator reading; Perform three-dimensional modeling on the catheter spindle, the flaring rod, and the calibrated inspection rod to form calibrated point cloud data; Fit the calibrated point cloud data to form a calibrated three-dimensional model of the main shaft, flaring rod, and calibration inspection rod, and determine the three-dimensional coordinates of the two end points of the center lines of the main shaft and flaring rod and the three-dimensional coordinates of the two end points of the inspection rod; Calculate the angular deviation of the main shaft relative to the inspection rod by using the three-dimensional coordinates of the two end points of the center lines of the main shaft and flaring rod, the three-dimensional coordinates of the two end points of the inspection rod, and a preset angular deviation algorithm; Connect the calibration inspection rod and the calibration catheter flaring device according to the inspection requirements, and obtain the coaxiality of the main shaft relative to the inspection rod and the angular deviation of the main shaft relative to the inspection rod, including: Clamp the calibration inspection rod on the calibration flaring device with a half mold according to the inspection requirements, and determine the coaxiality of the main shaft relative to the inspection rod according to the dial indicator reading; Perform three-dimensional modeling on the catheter main shaft, flaring rod, and calibration inspection rod to form calibrated point cloud data; Fit the calibrated point cloud data to form a calibrated three-dimensional model of the main shaft, flaring rod, and calibration inspection rod, and determine the three-dimensional coordinates of the two end points of the center lines of the main shaft and flaring rod and the three-dimensional coordinates of the two end points of the inspection rod; Calculate the angular deviation of the main shaft relative to the inspection rod by using the three-dimensional coordinates of the two end points of the center lines of the main shaft and flaring rod, the three-dimensional coordinates of the two end points of the inspection rod, and a preset angular deviation algorithm.

7. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the program, it realizes the catheter flaring forming quality control and inspection method according to any one of claims 1 to 5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it realizes the catheter flaring forming quality control and inspection method according to any one of claims 1 to 5.

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