Multi-defect synchronous detection equipment for copper product processing and use method of multi-defect synchronous detection equipment

Abstract

The invention discloses a multi-defect synchronous detection device for copper product processing and a use method thereof, and belongs to the technical field of copper product detection.The multi-defect synchronous detection device comprises a mounting base and a defect detection system applied to the detection device, a positioning groove is formed in the upper surface of the mounting base, and a copper pipe is placed in the positioning groove; according to the device, firstly, a pair of detection mechanisms are installed below an I-shaped pipe and an L-shaped pipe correspondingly, so that synchronous detection of the inner wall and the outer wall of the copper pipe is achieved, the problem that the inner wall and the outer wall are detected and separated in a traditional detection method is solved, and the detection efficiency and accuracy are greatly improved; the detection system can emphatically identify and evaluate the risk of the position again, the problem of product quality misjudgment caused by dependence on a single detection standard is prevented, potential safety risks existing in products are eliminated in time, the product quality level is improved, meanwhile, the use safety of the products is enhanced, and the detection system has wide application prospects and market value.

Description

Technical Field

[0001] The present invention relates to the technical field of copper product detection, and more specifically, to a multi-defect synchronous detection device for copper product processing and a method for using the same. Background Art

[0002] Pure copper and its alloys are widely used to manufacture various forms of products, such as tubes, rods, wires, plates, strips, and bars, which are collectively referred to as copper products. Among them, copper pipes have become the preferred material for pipeline installation in natural water pipelines, heating and cooling systems due to their superior performance in these fields.

[0003] In the copper tube preparation process, accurate detection of inner and outer wall defects is a key step to ensure product quality. The presence of copper tube surface defects, whether it is insufficient single-point thickness (tube wall depression) or inner wall protrusions, may have an adverse effect on the strength, durability and fluid transmission efficiency of the copper tube. Specifically, substandard single-point thickness will weaken the copper tube's pressure-bearing capacity and increase its risk of rupture or leakage during application; while excessive protrusion defects on the inner wall will hinder the smooth flow of fluid, resulting in increased energy consumption and fluid pressure fluctuations.

[0004] At present, most of the detection methods for the inner and outer wall defects of copper tubes focus on the detection of the outer wall of copper tubes, while the detection of the inner wall of copper tubes is relatively rare due to the high detection difficulty. This unbalanced detection method is not only due to the challenging technology of the inner wall detection of copper tubes, but also because the traditional detection method often regards the inner and outer walls as two independent detection objects, which leads to the problem of low detection efficiency; more importantly, when evaluating the quality of copper tubes, the existing detection standards only consider whether the depression or protrusion of the inner or outer wall is within a reasonable range, but fail to fully consider that when there is a depression at the same position of the inner and outer walls, the actual strength of the position may have dropped significantly, exceeding the standard range for safe use. The limitations of this detection standard undoubtedly increase the safety hazards of the product in subsequent use, such as the risk of fluid leakage and pipeline rupture, and pose a potential threat to the stability and safety of equipment use.

[0005] Therefore, in view of the above technical problems, it is necessary to provide a multi-defect synchronous detection device for copper product processing and a method of using the same. Summary of the invention

[0006] The object of the present invention is to provide a multi-defect synchronous detection device for copper product processing and a method of using the same to solve the above-mentioned problems.

[0007] In order to achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows: A multi-defect synchronous detection device for copper product processing, comprising a mounting base and a defect detection system applied to the detection device, wherein the upper surface of the mounting base is provided with a positioning groove, a copper tube is placed in the positioning groove, the upper end of the mounting base is fixedly connected to a mounting frame, the upper end of the mounting frame is installed with a motor, the output end of the motor is fixedly connected to a driving shaft, the lower end of the driving shaft is fixedly connected to an I-shaped tube, an L-shaped tube is fixedly connected to the side wall of the driving shaft, and a detection mechanism is provided below the I-shaped tube and the L-shaped tube, and the detection mechanism comprises an electric telescopic device arranged at the bottom end of the I-shaped tube and the L-shaped tube, the output end of the electric telescopic device is fixedly connected to a driven tube, and a pair of the driven tubes are respectively located on the inner and outer sides of the copper tube The driven tube is provided with a slide groove and a diameter-increasing groove which are interconnected at one end close to the copper tube, a diameter-reducing ring is fixedly connected inside the driven tube, the slide groove and the diameter-increasing groove are separated by the diameter-reducing ring, a detection ball which fits the side wall of the copper tube is arranged on the side close to the copper tube in the slide groove, a position encoder is installed on the detection ball at a position which fits the side wall of the copper tube, a connecting rod is fixedly connected to the end of the detection ball away from the side wall of the copper tube, a movable ring is fixedly connected to the end of the connecting rod away from the detection ball, the movable ring is located in the diameter-increasing groove and is slidably connected thereto, a spring is fixedly connected to the side wall of the movable ring and the diameter-reducing ring, an electromagnet is fixedly connected to the movable ring and the inner bottom end of the diameter-increasing groove, and a laser ranging sensor is arranged at the inner bottom end of the diameter-increasing groove.

[0008] As a further improvement of the present invention, the defect detection system comprises: Database: used to input the allowable range data of defects on copper tubes of various sizes, including the maximum allowable defect size and shape of the inner and outer walls of copper tubes of different sizes; Electronically controlled rotation module: controls the direction and speed of the motor, which can drive the detection mechanism to rotate synchronously; Electric control lifting module: the detection mechanism is controlled to perform lifting actions through electric telescopic equipment; Electromagnet drive module: used to control the opening and closing of the electromagnet; Encoder module: connected to the position encoder, used to record the real-time motion trajectory of the detection ball on the surface of the copper tube, including the moving speed, direction and position information of the detection ball; Sensor module: connected to the laser distance sensor, the data detected by the laser distance sensor is used to calculate the real-time distance change between the detection ball and the side wall of the copper tube, and provide corresponding data for judging whether there are defects on the inner and outer walls of the copper tube; Data analysis module: receives the data transmitted by the encoder module and the sensor module, and analyzes and processes the data in combination with the type of copper tube currently detected in the database; Generate a coordinate curve graph capable of displaying the movement strokes of a pair of detection balls, the copper tube positions corresponding to each stroke, and the defect information detected at the position; The coordinate curve is compared with the allowed range of standard part defects, and the defect information that is judged to be a depression at the same position on the inner and outer walls of the copper tube is highlighted. The two depression defects are superimposed and calculated, and the superimposed data is compared with the maximum depression defect size allowed for copper tubes in the database. Based on the comparison results, it is determined whether the depression defect of the copper tube exceeds the allowable range.

[0009] As a further improvement of the present invention, base point marks are provided at the vertices of the inner and outer walls of the copper tube, and the base point marks are physical marks or electronic marks.

[0010] As a further improvement of the present invention, the driven tube located below the I-shaped tube and the driven tube located below the L-shaped tube are coaxial and collinear, and a pair of detection balls abut against the inner wall and outer wall of the copper tube at corresponding points respectively.

[0011] As a further improvement of the present invention, the detection ball is a wear-resistant hard sphere, and the diameter of the detection ball matches the inner diameter of the slide groove. There is a distance between the detection ball and the reducing ring that is not less than twice the maximum convex defect height allowed by the copper tube.

[0012] As a further improvement of the present invention, there is a certain distance between the movable ring and the inner wall of the diameter-increasing groove, and the outer end of the movable ring is provided with a plurality of spherical grooves distributed in a circular array with its center, and balls are installed in the spherical grooves, and the balls are rollingly connected to the diameter-increasing groove.

[0013] As a further improvement of the present invention, an annular light-shielding beam is provided at the outer end of the movable ring and at the front and rear sides of the ball, and the length of the annular light-shielding beam is longer than the distance between the movable ring and the inner wall of the diameter-increasing groove.

[0014] As a further improvement of the present invention, the annular light-shielding bundle is a soft and wear-resistant velvet-like bundle, and the color of the annular light-shielding bundle is a dark color.

[0015] As a further improvement of the present invention, a magnetic shielding ring is embedded in the inner end of the movable ring, and the diameter of the magnetic shielding ring is larger than the diameter of the electromagnet.

[0016] As a further improvement of the present invention, a method for using a multi-defect synchronous detection device for copper product processing comprises the following steps: S1. Retrieve standard parameters: According to the size specifications of the copper tube to be tested, retrieve the allowed range data of the corresponding copper tube defects from the database; S2, base point setting: set a base point mark at the preset position of the copper tube as the starting point of the detection process, and move a pair of driven tubes to the base point position; S3, internal and external synchronous detection: the electromagnet module drives the detection ball to move to the end away from the copper tube, and the power is cut off after a pair of driven tubes move to the inside and outside of the copper tube. The electric control rotation module controls the direction and speed of the motor, and drives the detection mechanism to rotate synchronously. The electric control lifting module controls the lifting distance and movement frequency of the electric telescopic equipment, and drives the detection mechanism to lift synchronously. The encoder module records the real-time movement trajectory of the detection ball. The sensor module measures the time difference from the laser emission to the reception of the reflected laser pulse by the laser ranging sensor, and calculates the distance between the laser ranging sensor and the movable ring based on the time difference, and finally determines the size of the protrusion or depression on the copper tube surface touched by the detection ball; S4, data collection and processing: The data analysis module receives the data transmitted by the encoder module and the sensor module, processes the collected data in combination with the type of copper tube currently being tested in the database, generates a coordinate curve graph, and displays the movement stroke of the detection probe, the copper tube position corresponding to each stroke, and the defect information detected at the position; S5. Defect analysis and key identification: Preliminary comparison is made between the detected defect information and the range allowed by the standard part defects, and key identification is made for the defect information that is judged to be concave at the same position on the inner and outer walls of the copper tube; S6. Analysis of key markings and classification of products: For the marked concave defects at the same position on the inner and outer walls, the defect data, including the concave size and area, are recalculated and compared with the maximum concave defect size and shape allowed for copper pipes in the database. Based on the comparison results, the copper pipes are classified into categories.

[0017] Compared with the prior art, the advantages of the present invention are: (1) This scheme firstly realizes the simultaneous detection of the inner and outer walls of the copper tube by installing a pair of detection mechanisms under the I-shaped tube and the L-shaped tube respectively, thus solving the problem of separation of inner and outer wall detection in the traditional detection method and greatly improving the detection efficiency and accuracy.

[0018] (2) In this solution, when there are concave defects at the same position on the inner and outer walls of the copper tube, the detection system can focus on marking and re-evaluate the risk of this position, prevent the misjudgment of product quality caused by relying on a single detection standard, and promptly eliminate potential safety risks in the product, thereby improving the product quality level and enhancing its safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front cross-sectional view of the present invention; Figure 2 A top view of the present invention; Figure 3 This is a top cross-sectional view of the present invention after the motor and the L-shaped tube are removed; Figure 4 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 5 It is a cross-sectional view of the driven pipe in the present invention.

[0020] Description of the numbers in the figure: 1. Mounting base; 101. Positioning groove; 2. Copper tube; 3. Mounting frame; 4. Motor; 5. Drive shaft; 6. I-type tube; 7. L-type tube; 9. Electric telescopic device; 10. Driven tube; 1001. Slide groove; 1002. Diameter increasing groove; 11. Diameter reducing ring; 12. Detection ball; 13. Connecting rod; 14. Movable ring; 1401. Ball; 15. Spring; 16. Electromagnet; 17. Laser ranging sensor; 19. Annular light shielding beam; 20. Magnetic shielding ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention. Example

[0022] See also Figure 1 A multi-defect synchronous detection device for copper product processing includes a mounting base 1 and a defect detection system applied to the detection device. A positioning groove 101 is provided on the upper surface of the mounting base 1. A copper tube 2 is placed in the positioning groove 101. Base point marks are provided at the vertices of the inner and outer walls of the copper tube 2 as the starting point of the detection process. The base point marks are physical marks or electronic marks. The physical marks can be drawn in the form of lines, and the electronic marks can be RFID tags. A mounting frame 3 is fixedly connected to the upper end of the mounting base 1. A motor 4 is installed on the upper end of the mounting frame 3. A driving shaft 5 is fixedly connected to the output end of the motor 4. An I-type tube 6 is fixedly connected to the lower end of the driving shaft 5. An L-type tube 7 is fixedly connected to the side wall of the driving shaft 5. Detection mechanisms are provided below the I-type tube 6 and the L-type tube 7.

[0023] See also Figure 1-5The detection mechanism includes an electric telescopic device 9 arranged at the bottom end of the I-shaped tube 6 and the L-shaped tube 7. The output end of the electric telescopic device 9 is fixedly connected to a driven tube 10. A pair of driven tubes 10 are respectively located at the inner and outer sides of the copper tube 2. The driven tube 10 located below the I-shaped tube 6 and the driven tube 10 located below the L-shaped tube 7 are coaxial and collinear. A chute 1001 and a diameter-increasing groove 1002 that are connected to each other are opened at one end of the driven tube 10 close to the copper tube 2. A diameter-reducing ring 11 is fixedly connected in the driven tube 10. The chute 1001 and the diameter-increasing groove 1002 are separated by the diameter-reducing ring 11. A detection ball 12 that fits the side wall of the copper tube 2 is arranged on one side of the chute 1001 close to the copper tube 2. The spherical ball 12 is arranged on the side of the chute 1001 close to the copper tube 2. To facilitate movement along the surface of the copper tube 2, a pair of detection balls 12 respectively abut against the inner wall and outer wall of the copper tube 2 at corresponding points, that is, the position detected by the pair of detection balls 12 is always the same point on the inner and outer walls of the copper tube 2. The detection ball 12 is a wear-resistant hard sphere, which can effectively extend the service life of the detection ball 12. The diameter of the detection ball 12 matches the inner diameter of the slide groove 1001, so that the detection ball 12 always moves in a straight line, which preliminarily guarantees the detection accuracy. There is a spacing between the detection ball 12 and the reducing ring 11 that is not less than twice the maximum convex defect height allowed by the copper tube 2, providing a large enough space for the detection ball 12 to move into the slide groove 1001, which is convenient for the detection mechanism to move to the base point mark.

[0024] See also Figure 4-5 A position encoder is installed on the position where the detection ball 12 fits with the side wall of the copper tube 2. A connecting rod 13 is fixedly connected to the end of the detection ball 12 away from the side wall of the copper tube 2. A movable ring 14 is fixedly connected to the end of the connecting rod 13 away from the detection ball 12. The movable ring 14 is located in the diameter-increasing groove 1002 and is slidably connected thereto. There is a certain distance between the movable ring 14 and the inner wall of the diameter-increasing groove 1002. A plurality of spherical grooves are arranged at the outer end of the movable ring 14 in a circular array with the center thereof. A ball 1401 is installed in the spherical groove. The ball 1401 is rollingly connected to the diameter-increasing groove 1002. The ball 1401 is provided to reduce friction so that the detection ball 12 drives the connecting rod when it moves to the protrusion or depression on the copper tube 2. When 13 moves synchronously with the movable ring 14, the response is more sensitive. At the same time, it is ensured that the movable ring 14 will always slide back and forth along the diameter-increasing groove 1002, which can further ensure the detection accuracy. The movable ring 14 and the side wall of the diameter-reducing ring 11 are fixedly connected with a spring 15. The spring 15 always drives the movable ring 14 to move toward the side close to the diameter-reducing ring 11, and finally drives the detection ball 12 to always be in a fit state with the side wall of the copper tube 2. The movable ring 14 and the inner bottom end of the diameter-increasing groove 1002 are fixedly connected with an electromagnet 16. The inner end of the movable ring 14 is embedded with a magnetic shielding ring 20, and the diameter of the magnetic shielding ring 20 is larger than the diameter of the electromagnet 16. The magnetic shielding ring 20 is provided to prevent magnetic interference that may be generated when a pair of electromagnets 16 are started synchronously.

[0025] See also Figure 4-5A laser distance sensor 17 is provided at the inner bottom end of the diameter increasing groove 1002. When the detection ball 12 moves to the raised position on the copper tube 2, the movable ring 14 is squeezed and moves toward the end close to the laser distance sensor 17. The time for the laser beam emitted by the output end of the laser distance sensor 17 to be reflected from the movable ring 14 will be shortened accordingly. According to the changes before and after this process, the specific shape and parameters of the raised part can be obtained. When the detection ball 12 moves to the recessed part on the copper tube 2, the movable ring 14 moves toward the end away from the laser distance sensor 17. The time for the laser beam emitted by the output end of the laser distance sensor 17 to be reflected from the movable ring 14 will be prolonged accordingly. According to the changes before and after this process, the specific shape and size of the recess can be obtained. The outer end of the movable ring 14 is located at the ball bearing. Annular light-shielding beams 19 are provided on both the front and rear sides of 1401. The length of the annular light-shielding beams 19 is longer than the distance between the movable ring 14 and the inner wall of the diameter-increasing groove 1002. The annular light-shielding beams 19 are soft and wear-resistant velvet-like beams. The color of the annular light-shielding beams 19 adopts a dark color. The annular light-shielding beams 19 are evenly arranged on the outer periphery of the movable ring 14. The length of the annular light-shielding beams 19 enables them to always fit tightly on the inner wall of the diameter-increasing groove 1002. At the same time, the soft material will not hinder the normal sliding of the movable ring 14. The dark color has excellent light-shielding performance, which can effectively block external light sources from entering the area where the laser ranging sensor 17 is located and the area where the light emitted by the laser ranging sensor 17 may leak, thereby avoiding the interference of ambient light on the measurement of the laser ranging sensor 17 to the greatest extent.

[0026] Defect detection system includes: Database: used to input the allowed range data of defects on copper tubes 2 of various sizes, including the maximum allowed defect sizes and shapes on the inner and outer walls of copper tubes 2 of different sizes; Electronically controlled rotation module: controls the direction and speed of the motor 4, which can drive the detection mechanism to rotate synchronously; Electric control lifting module: controls the detection mechanism to perform lifting action through the electric telescopic device 9; Electromagnet drive module: used to control the opening and closing of the electromagnet 16; Encoder module: connected to the position encoder, used to record the real-time motion trajectory of the detection ball 12 on the surface of the copper tube 2, including the moving speed, direction and position information of the detection ball 12; Sensor module: connected to the laser distance sensor 17, and uses the data detected by the laser distance sensor 17 to calculate the real-time distance change between the detection ball 12 and the side wall of the copper tube 2, and provide corresponding data for judging whether there are defects on the inner and outer walls of the copper tube 2; Data analysis module: receives the data transmitted by the encoder module and the sensor module, and performs analysis and processing based on the type of copper tube 2 currently detected in the database; Generate a coordinate curve graph capable of displaying the movement strokes of a pair of detection balls 12, the position of the copper tube 2 corresponding to each stroke, and the defect information detected at the position; The coordinate curve diagram is compared with the interval range allowed for standard part defects, and the defect information judged as a depression at the same position on the inner and outer walls of the copper tube 2 is highlighted, and the two depression defects are superimposed and calculated. The superimposed data is compared with the maximum depression defect size allowed for the copper tube 2 in the database. Based on the comparison result, it is determined whether the depression defect of the copper tube 2 exceeds the allowable range.

[0027] A method for using a multi-defect synchronous detection device for copper product processing comprises the following steps: S1. Retrieving standard parameters: according to the size specifications of the copper tube 2 to be tested, retrieve the allowed interval range data of the corresponding copper tube 2 defects from the database; S2, base point setting: setting a base point mark at a preset position of the copper tube 2 as the starting point of the detection process, so that a pair of driven tubes 10 are moved to the base point position; S3, internal and external synchronous detection: the electromagnet module drives the detection ball 12 to move toward the end away from the copper tube 2, and cuts off the power after a pair of driven tubes 10 move to the inside and outside of the copper tube 2. The electric control rotation module controls the direction and speed of the motor 4, and drives the detection mechanism to rotate synchronously. The electric control lifting module controls the lifting distance and movement frequency of the electric telescopic device 9, and drives the detection mechanism to rise and fall synchronously. The encoder module records the real-time movement trajectory of the detection ball 12. The sensor module measures the time difference from the laser emission to the reception of the reflected laser pulse by the laser ranging sensor 17, and calculates the distance between the laser ranging sensor 17 and the movable ring 14 according to the time difference, and finally determines the size of the protrusion or depression on the surface of the copper tube 2 touched by the detection ball 12; S4, data collection and processing: The data analysis module receives the data transmitted by the encoder module and the sensor module, processes the collected data in combination with the type of the copper tube 2 currently being detected in the database, generates a coordinate curve graph, and displays the movement stroke of the detection probe, the copper tube position corresponding to each stroke, and the defect information detected at the position; S5. Defect analysis and key identification: Preliminary comparison is made between the detected defect information and the range allowed by the standard part defects, and key identification is made for the defect information that is judged to be concave at the same position on the inner and outer walls of the copper tube; S6. Analysis of key markings and classification of products: For the marked concave defects at the same position on the inner and outer walls, the defect data, including the concave size and area, are recalculated and compared with the maximum concave defect size and shape allowed for copper pipes in the database. Based on the comparison results, the copper pipes are classified into categories.

[0028] This solution achieves simultaneous detection of the inner and outer walls of the copper tube 2 by installing the detection mechanism below the I-tube 6 and the L-tube 7, solves the problem of separate detection of the inner and outer walls in traditional detection methods, and greatly improves the detection efficiency and accuracy. When there are concave defects at the same position on the inner and outer walls of the copper tube 2, the detection system can focus on marking and re-evaluate the risk of this position, prevent product quality misjudgment caused by reliance on a single detection standard, eliminate potential safety risks in the product in a timely manner, improve the product quality level and enhance its safety of use.

[0029] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that those skilled in the art can understand.

Claims

1. A multi-defect synchronous detection device for copper product processing, characterized in that: The invention comprises a mounting base (1) and a defect detection system applied to a detection device, wherein a positioning groove (101) is provided on the upper surface of the mounting base (1), a copper tube (2) is placed in the positioning groove (101), a mounting frame (3) is fixedly connected to the upper end of the mounting base (1), a motor (4) is installed on the upper end of the mounting frame (3), a driving shaft (5) is fixedly connected to the output end of the motor (4), an I-shaped tube (6) is fixedly connected to the lower end of the driving shaft (5), an L-shaped tube (7) is fixedly connected to the side wall of the driving shaft (5), and detection mechanisms are provided below the I-shaped tube (6) and the L-shaped tube (7); The detection mechanism comprises an electric telescopic device (9) arranged at the bottom end of the I-shaped tube (6) and the L-shaped tube (7), the output end of the electric telescopic device (9) being fixedly connected to a driven tube (10), a pair of driven tubes (10) being respectively located at the inner and outer sides of the copper tube (2), one end of the driven tube (10) close to the copper tube (2) being provided with a slide groove (1001) and a diameter increasing groove (1002) which are connected to each other, a diameter reducing ring (11) being fixedly connected inside the driven tube (10), the slide groove (1001) and the diameter increasing groove (1002) being separated by the diameter reducing ring (11), and a detection ball (11) which is in contact with the side wall of the copper tube (2) being arranged on one side of the slide groove (1001) close to the copper tube (2) 2), a position encoder is installed at a position on the detection ball (12) that is in contact with the side wall of the copper tube (2), one end of the detection ball (12) away from the side wall of the copper tube (2) is fixedly connected to a connecting rod (13), one end of the connecting rod (13) away from the detection ball (12) is fixedly connected to a movable ring (14), the movable ring (14) is located in the diameter increasing groove (1002) and is slidably connected thereto, the movable ring (14) and the side wall of the diameter reducing ring (11) are fixedly connected to a spring (15), the movable ring (14) and the inner bottom end of the diameter increasing groove (1002) are fixedly connected to an electromagnet (16), and the inner bottom end of the diameter increasing groove (1002) is provided with a laser distance measuring sensor (17).

2. The multi-defect synchronous detection equipment for copper product processing according to claim 1 is characterized in that: The defect detection system comprises: Database: used to input data on the allowable range of defects on standard copper tubes (2) of various sizes, including the maximum allowable defect sizes and shapes of the inner and outer walls of copper tubes (2) of different sizes; An electric control rotation module controls the direction and speed of the motor (4), which can drive the detection mechanism to rotate synchronously; Electric control lifting module: controls the detection mechanism to perform lifting action through the electric telescopic device (9); Electromagnet drive module: used to control the opening and closing of the electromagnet (16); Encoder module: connected to the position encoder, used to record the real-time motion trajectory of the detection ball (12) on the surface of the copper tube (2), including the moving speed, direction and position information of the detection ball (12); Sensor module: connected to the laser distance measuring sensor (17), and using the data detected by the laser distance measuring sensor (17) to calculate the real-time distance change between the detection ball (12) and the side wall of the copper tube (2), thereby providing corresponding data for determining whether there are defects on the inner and outer walls of the copper tube (2); Data analysis module: receiving the data transmitted by the encoder module and the sensor module, and analyzing and processing the data in combination with the type of the copper tube (2) currently detected in the database; Generating a coordinate curve graph capable of displaying the movement strokes of a pair of detection balls (12), the position of the copper tube (2) corresponding to each movement stroke, and defect information detected at the position; The coordinate curve diagram is compared with the range of defects allowed by the standard part, defect information that is judged to be a depression at the same position on the inner and outer walls of the copper tube (2) is highlighted, and the two depression defects are superimposed and calculated, and the superimposed data is compared with the maximum depression defect size allowed by the copper tube (2) in the database, and based on the comparison result, it is judged whether the depression defect of the copper tube (2) exceeds the allowable range.

3. The multi-defect synchronous detection equipment for copper product processing according to claim 1 is characterized in that: Base point marks are provided at the vertices of the inner and outer walls of the copper tube (2), and the base point marks are physical marks or electronic marks.

4. The multi-defect synchronous detection equipment for copper product processing according to claim 1 is characterized in that: The driven tube (10) located below the I-shaped tube (6) and the driven tube (10) located below the L-shaped tube (7) are coaxial and collinear, and a pair of detection balls (12) respectively abut against the inner wall and the outer wall of the copper tube (2) at corresponding points.

5. The multi-defect synchronous detection equipment for copper product processing according to claim 1 is characterized in that: The detection ball (12) is a wear-resistant hard sphere, and the diameter of the detection ball (12) matches the inner diameter of the slide groove (1001). There is a spacing between the detection ball (12) and the reducing ring (11) that is not less than twice the maximum height of the raised defect allowed by the copper tube (2).

6. The multi-defect synchronous detection equipment for copper product processing according to claim 1 is characterized in that: There is a certain distance between the movable ring (14) and the inner wall of the diameter-increasing groove (1002); a plurality of spherical grooves distributed in a circular array with the center thereof are provided at the outer end of the movable ring (14); balls (1401) are installed in the spherical grooves; the balls (1401) and the diameter-increasing groove (1002) are connected in a rolling manner.

7. The multi-defect synchronous detection equipment for copper product processing according to claim 6 is characterized in that: An annular light-shielding beam (19) is provided at the outer end of the movable ring (14) and at positions located on both sides of the front and rear of the ball (1401); the length of the annular light-shielding beam (19) is longer than the distance between the movable ring (14) and the inner wall of the diameter-increasing groove (1002).

8. The multi-defect synchronous detection equipment for copper product processing according to claim 7 is characterized in that: The annular light-shielding bundle (19) is a soft and wear-resistant velvet-like bundle, and the color of the annular light-shielding bundle (19) is a dark color.

9. The multi-defect synchronous detection equipment for copper product processing according to claim 1 is characterized in that: A magnetic shielding ring (20) is embedded in the inner end of the movable ring (14), and the diameter of the magnetic shielding ring (20) is greater than the diameter of the electromagnet (16).

10. A method for using the multi-defect synchronous detection device for copper product processing according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Retrieving standard parameters: according to the size specifications of the copper tube (2) to be inspected, retrieve the allowable interval range data of the corresponding copper tube (2) defects from the database; S2, base point setting: setting a base point mark at a preset position of the copper tube (2) as the starting point of the detection process, so that a pair of driven tubes (10) are moved to the base point position; S3, internal and external synchronous detection: the electromagnet module drives the detection ball (12) to move toward the end away from the copper tube (2), and the power is cut off after the pair of driven tubes (10) move to the inside and outside of the copper tube (2). The electric control rotation module controls the direction and speed of the motor (4) and drives the detection mechanism to rotate synchronously. The electric control lifting module controls the lifting distance and movement frequency of the electric telescopic device (9) and drives the detection mechanism to rise and fall synchronously. The encoder module records the real-time movement trajectory of the detection ball (12). The sensor module measures the time difference from the laser emission to the reception of the reflected laser pulse by the laser distance sensor (17), and calculates the distance between the laser distance sensor (17) and the movable ring (14) based on the time difference, and finally determines the size of the protrusion or depression on the surface of the copper tube (2) touched by the detection ball (12); S4, data collection and processing: the data analysis module receives the data transmitted by the encoder module and the sensor module, processes the collected data in combination with the type of the copper tube (2) currently being detected in the database, generates a coordinate curve graph, and displays the movement stroke of the detection probe, the position of the copper tube corresponding to each stroke, and the defect information detected at the position; S5. Defect analysis and key identification: Preliminary comparison is made between the detected defect information and the range allowed by the standard part defects, and key identification is made for the defect information that is judged to be concave at the same position on the inner and outer walls of the copper tube; S6. Analysis of key markings and classification of products: For the marked concave defects at the same position on the inner and outer walls, the defect data, including the concave size and area, are recalculated and compared with the maximum concave defect size and shape allowed for copper pipes in the database. Based on the comparison results, the copper pipes are classified into categories.

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