Flange quality detection device and method

Abstract

The invention discloses a flange quality detection device and method, and particularly relates to the field of flange detection.The device comprises a conveying mechanism, a conveying belt is arranged on the conveying mechanism in a transmission mode, and the conveying belt is used for conveying flange workpieces; an executing mechanism is arranged on the conveying mechanism, a third linear driver is arranged at the output end of the executing mechanism, a quality detection mechanism is arranged at the output end of the third linear driver and comprises a sleeve, a sliding rod is arranged in the sleeve in a sliding mode, and a first elastic piece is arranged between the top end of the sliding rod and the inner wall of the sleeve; and an infrared sensor is arranged in the sleeve. Through the arrangement of the cone, after the cone moves into the mounting hole, the cone does not need to be driven to stop horizontal movement, the cone can be driven to automatically and vertically move upwards to leave the mounting hole through extrusion of the mounting hole and the inclined conical surface of the cone, the detection process is not interrupted, continuous monitoring can be achieved, the detection time is shortened, and the detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of flange detection, and more specifically, to a flange quality detection device and method. Background Art

[0002] A flange is a common connecting component in the industrial and engineering fields, mainly used for connecting equipment such as pipelines, valves, pumps, and pressure vessels. During the extraction and transportation of oil and gas, a large number of large pipelines are required to transport oil and gas, and large-sized flanges are needed for the connection between these pipelines to ensure the safe and stable transportation of oil and gas and prevent accidents such as leakage.

[0003] The flatness of the contour mounting surface of the flange directly affects the sealing effect. A flat flange surface can closely fit with the sealing gasket to prevent oil and gas leakage and ensure the safety and stability of the pipeline system. Therefore, after the flange is produced, in order to prevent unqualified products from entering the market and ensure the safety and stability of the pipeline system, it is necessary to detect the surface quality of the flange.

[0004] The detection component of the existing flange quality detection equipment includes a rotating column with a chute opened at the bottom end. An elevating column is vertically slidably arranged inside the rotating column, and a spring is arranged between the elevating column and the rotating column. An infrared sensor is arranged on the top inner wall of the chute. The elevating column is the detection end of the detection component. When detecting the quality of the flange surface, the rotating column is located directly above the flange, and a vertically downward force is applied to the elevating column to make the bottom end of the elevating column closely fit with the surface of the flange, and the elevating column is driven to make a circular motion along the center of the flange. The vertical movement of the elevating column is detected by the infrared sensor to judge the flatness of the flange surface. In order to improve the detection accuracy of the flange surface quality, it is necessary to make the detection end of the detection component completely pass through the contour surface of the flange, and the detection end of the detection component should not be too large.

[0005] However, the mounting holes on large-sized flanges are also large. When the detection end of the detection component makes a circular motion along the contour mounting surface of the flange, it will enter the mounting hole. The detection end needs to stop moving and be passively removed from the mounting hole before continuing the detection, resulting in the interruption of the detection process and the inability to achieve continuous detection. Moreover, frequent start-stop operations will waste time and reduce the detection efficiency. Summary of the Invention

[0006] The present invention provides a flange quality detection device and method, and the problem to be solved is that in the existing flange quality detection device, when detecting the flatness of the surface of a large-sized flange, the detection end of the detection component will enter the mounting hole when making a circular motion along the surface of the flange. The detection end needs to stop moving and be passively removed from the mounting hole before continuing the detection, resulting in the interruption of the detection process and the inability to achieve continuous detection. Moreover, frequent start-stop operations will waste time and reduce the detection efficiency.

[0007] To achieve the above object, the present invention provides the following technical solution: A flange quality detection device includes a conveying mechanism, on which a conveyor belt is drivingly arranged, and the conveyor belt is used to convey flange workpieces; An actuator is arranged on the conveying mechanism, a linear actuator three is arranged on the output end of the actuator, and a quality detection mechanism is arranged on the output end of the linear actuator three. The quality detection mechanism includes a sleeve, a slide bar is slidably arranged in the sleeve, an elastic member one is arranged between the top end of the slide bar and the inner wall of the sleeve, and an infrared sensor is arranged in the sleeve; A cone is arranged at the bottom end of the slide bar, and a fillet is arranged at the bottom end of the cone; During detection, the output end of the actuator applies a vertically downward pressure to the slide bar to make the bottom end of the slide bar closely fit the surface of the flange workpiece. The output end of the actuator drives the slide bar to horizontally move on the surface of the flange workpiece. The acquisition end of the infrared sensor is used to identify the displacement amount of the slide bar in the sleeve. After the cone is located in the mounting hole, the output end of the actuator drives the slide bar in the mounting hole to horizontally move, and the conical surface of the cone fits and presses the cone against the inner wall of the mounting hole to make the slide bar move vertically upward.

[0008] In a preferred embodiment, a defect marking component is arranged on the sleeve. The defect marking component includes a storage cylinder, the storage cylinder is fixedly sleeved on the sleeve, a slide seat is fixedly arranged at the top end of the slide bar, the slide seat is slidably arranged in the sleeve, a groove is formed in the slide seat, a plurality of through holes one are formed in the sleeve, a through hole two is formed in the slide seat, the through hole two is adapted to the through hole one, a discharge hole is formed in the cone, and the groove is communicated with the discharge hole.

[0009] In a preferred embodiment, the defect marking component further includes an adapter seat, the adapter seat is slidably arranged in the groove, a discharge hole is formed in the adapter seat, the discharge hole is adapted to the through hole two, a communicating pipe is fixedly communicated with the discharge hole, the communicating pipe is slidably arranged in the slide bar, the communicating pipe is communicated with the discharge hole, an elastic member two is arranged between the top of the adapter seat and the inner wall of the sleeve, and a stabilizing seat is fixedly arranged in the groove, and the stabilizing seat is adapted to the adapter seat.

[0010] In a preferred embodiment, a limiting seat one is fixedly arranged in the sleeve, and the limiting seat one is used to limit the top of the adapter seat.

[0011] In a preferred embodiment, the actuator includes a fixing plate, a linear actuator two and a rotating actuator are fixedly arranged on the fixing plate, a driving wheel one is fixedly arranged on the output shaft of the rotating actuator, a driving wheel two is rotatably arranged on the fixing plate, the driving wheel one and the driving wheel two are connected by the same belt in transmission, a connecting rod is rotatably arranged on the output end of the linear actuator two, the connecting rod is slidably arranged with the driving wheel two, the linear actuator three is fixedly arranged at the bottom end of the connecting rod, and a vision recognition instrument is fixedly arranged at the bottom of the fixing plate.

[0012] In a preferred embodiment, a protrusion is fixedly arranged on the connecting rod, an auxiliary hole is formed in the second transmission wheel, a connecting hole is formed in the inner wall of the auxiliary hole, the connecting rod is slidably arranged in the auxiliary hole, and the protrusion is slidably arranged in the connecting hole.

[0013] In a preferred embodiment, the conveying mechanism includes a first support frame, two transmission rollers are rotatably arranged on the first support frame, a conveyor belt is drivingly arranged on the two transmission rollers, a push plate is slidably arranged on the first support frame, and a first linear driver is fixedly arranged on the first support frame, and the output end of the first linear driver is fixedly arranged with the push plate.

[0014] In a preferred embodiment, a second support frame is fixedly arranged on the first support frame, and a fixing plate is fixedly arranged on the second support frame.

[0015] In a preferred embodiment, a plurality of positioning plates are fixedly arranged on the push plate, the plurality of positioning plates are arranged on the push plate at equal intervals, and the positioning plates are used for positioning the flange workpiece.

[0016] A detection method for a flange quality detection device includes the following steps: Step 1: Place the flange workpiece on the conveyor belt, start the motor to drive the transmission roller to rotate, and the transmission roller drives the conveyor belt to move the flange workpiece below the connecting rod so that the flange workpiece and the connecting rod are concentrically arranged; Step 2: Start the second linear driver, the movement of the output end of the second linear driver drives the sleeve to move vertically downward so that the bottom of the cone is in close contact with the top of the flange workpiece, and then start the rotation driver, the output shaft of the rotation driver drives the second transmission wheel to rotate synchronously, and the second transmission wheel drives the cone to move in a circular motion on the top of the flange workpiece through the connecting rod; Step 3: The cone rotates one week on the top of the flange workpiece to detect the flatness of the surface of the flange workpiece, and then start the third linear driver, and the movement of the output end of the third linear driver drives the horizontal position of the cone on the flange workpiece; Step 4: When the surface of the flange workpiece is uneven, the bottom of the cone sprays paint to mark the uneven part of the surface of the flange workpiece.

[0017] The beneficial effects of the present invention are as follows: 1. By arranging the cone in the present invention, after the cone moves into the installation hole, there is no need to drive the cone to stop horizontal movement. The extrusion of the installation hole and the inclined conical surface of the cone can drive the cone to automatically move vertically upward and leave the installation hole, and the detection process will not be interrupted, continuous monitoring can be realized, the detection time is shortened and the detection efficiency is improved.

[0018] 2. By setting up a defect marking component, when the surface quality of the flange workpiece is detected through the cone, the positions with defects on the surface of the flange workpiece can be automatically marked, facilitating subsequent repair of the surface of the flange workpiece by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the present invention.

[0020] Figure 2 It is a three-dimensional structure schematic diagram of the actuator of the present invention.

[0021] Figure 3 It is a front view structure schematic diagram of the linear actuator II of the present invention.

[0022] Figure 4 It is a front view sectional structure schematic diagram of the sleeve of the present invention.

[0023] Figure 5 It is a schematic diagram of the movement trajectory of the cone moving from the surface of the flange workpiece to the mounting hole of the flange workpiece of the present invention.

[0024] Figure 6 It is a schematic diagram of the movement trajectory of the cone moving from the mounting hole of the flange workpiece to the surface of the flange workpiece of the present invention.

[0025] Figure 7 It is a front view sectional structure schematic diagram of the storage cylinder of the present invention.

[0026] Figure 8 For the present invention Figure 7 The front view sectional structure schematic diagram of the adapter seat in it.

[0027] Figure 9 It is a schematic diagram of the movement trajectory of the sliding seat in the sleeve of the present invention Figure 1 .

[0028] Figure 10 It is a schematic diagram of the movement trajectory of the sliding seat in the sleeve of the present invention Figure 2 .

[0029] Figure 11 It is a three-dimensional structure schematic diagram of the support frame I of the present invention.

[0030] Figure 12 It is a top view structure schematic diagram of the conveyor belt of the present invention.

[0031] Figure 13 It is a three-dimensional structure schematic diagram of the flange workpiece of the present invention.

[0032] Figure 14 It is a flow schematic diagram of the detection method of the present invention.

[0033] The reference numerals are: 1, conveying mechanism; 11, first support frame; 12, driving roller; 13, conveyor belt; 14, push plate; 141, positioning plate; 15, first linear actuator; 2, actuating mechanism; 21, fixing plate; 22, second linear actuator; 23, rotating actuator; 24, first transmission wheel; 25, second transmission wheel; 26, connecting rod; 261, protrusion; 27, third linear actuator; 28, vision recognition instrument; 3, quality inspection mechanism; 31, sleeve; 311, first through hole; 312, first limiting seat; 32, sliding seat; 321, second through hole; 322, stabilizing seat; 33, sliding rod; 331, cone; 34, first elastic member; 35, infrared sensor; 4, defect marking member; 41, adapter seat; 411, discharge hole; 42, connecting pipe; 43, storage cylinder; 44, second elastic member; 5, flange workpiece; 51, mounting hole. Detailed implementation manner

[0034] The present application will be further described in detail below with reference to the accompanying drawings. It is necessary to point out here that the following specific implementation manners are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0035] Refer to the attached drawings of the specification Figures 1 to 6 And Figure 13 , a flange quality inspection device, including a conveying mechanism 1, on which a conveyor belt 13 is drivingly arranged, and the conveyor belt 13 is used for conveying flange workpieces 5; An actuating mechanism 2 is arranged on the conveying mechanism 1, a third linear actuator 27 is arranged on the output end of the actuating mechanism 2, and a quality inspection mechanism 3 is arranged on the output end of the third linear actuator 27. The quality inspection mechanism 3 includes a sleeve 31, a sliding rod 33 is slidably arranged in the sleeve 31, a first elastic member 34 is arranged between the top end of the sliding rod 33 and the inner wall of the sleeve 31, and an infrared sensor 35 is arranged in the sleeve 31; A cone 331 is arranged at the bottom end of the sliding rod 33, a fillet is arranged at the bottom end of the cone 331, and the fillet at the bottom end of the cone 331 is adapted to the conical surface of the cone 331; During detection, the output end of the actuating mechanism 2 applies a vertically downward pressure to the sliding rod 33 to make the bottom end of the sliding rod 33 closely fit the surface of the flange workpiece 5. The output end of the actuating mechanism 2 drives the sliding rod 33 to horizontally move on the surface of the flange workpiece 5. The acquisition end of the infrared sensor 35 is used to identify the displacement of the sliding rod 33 in the sleeve 31. When the cone 331 is located in the mounting hole 51, the output end of the actuating mechanism 2 drives the sliding rod 33 in the mounting hole 51 to horizontally move, and the conical surface of the cone 331 is in contact with and squeezes the inner wall of the mounting hole 51 to make the sliding rod 33 move vertically upward.

[0036] It should be noted that, referring toFigure 13 An installation hole 51 is provided on the flange workpiece 5. When detecting the flange workpiece 5, it is necessary to perform a complete detection on the contour surface and the installation surface of the flange workpiece 5 to prevent the contour surface and the installation surface of the flange workpiece 5 from being uneven. The unevenness of the contour surface and the installation surface of the flange workpiece 5 will affect the sealing performance of the pipeline system after installation.

[0037] It should also be noted that the sliding rod 33 slides within the sleeve 31. The acquisition end of the infrared sensor 35 is arranged towards the top end of the sliding rod 33. The first elastic member 34 is set as a spring. A fixing ring is fixedly arranged on the inner wall of the sleeve 31. The first elastic member 34 is arranged between the fixing ring and the sliding rod 33. After the sliding rod 33 slides within the sleeve 31 to generate a relative displacement, the acquisition end of the infrared sensor 35 calculates the distance based on the time difference or phase difference of the infrared light emitted from the sensor and reflected back by an object after encountering the object, converts the optical signal into an electrical signal, and then processes the electrical signal, and finally outputs the result. The infrared sensor 35, the first elastic member 34 and the sliding rod 33 cooperate to measure the flatness and irregularity of the surface of the flange workpiece 5 by an optical method. As a mature prior art, it will not be elaborated here too much.

[0038] Furthermore, the included angle between the conical surface of the cone 331 and the horizontal plane is less than 45°, or it can be said that the taper of the cone 331 and the horizontal plane has an included angle less than 45°. It can be understood that applying a horizontal force to the conical surface of the cone 331 can push the sliding rod 33 to move vertically. The vertical movement of the sliding rod 33 is essentially the result of the horizontal force being decomposed and synthesized through the geometric characteristics of the conical surface and jointly acting with the frictional force. As a mature prior art, it will not be elaborated here too much.

[0039] It should be further noted that the raw material of the cone 331 includes but is not limited to wear-resistant metal materials such as high manganese steel. The conveying mechanism 1 is provided with a manipulator, and a nozzle is arranged at the execution end of the manipulator. The nozzle is used to spray lubricating liquid onto the surface of the cone 331. The lubricating liquid on the surface of the cone 331 can reduce the frictional force generated when the cone 331 contacts the aperture of the installation hole 51, thereby prolonging the service life of the cone 331. The cone 331 can be installed at the bottom end of the sliding rod 33 by including but not limited to a threaded installation method, and the cone 331 on the sliding rod 33 can be replaced to prolong the overall service life of components such as the sliding rod 33 and the sleeve 31.

[0040] The specific implementation scenario is as follows: Place the flange workpiece 5 on the conveyor belt 13. Through the transmission of the conveyor belt 13, the flange workpiece 5 is conveyed to directly below the output end of the actuator 2. Then, the output end of the actuator 2 drives the sleeve 31 to move vertically downward, so that the cone 331 is in close contact with the surface of the flange workpiece 5. When the cone 331 is in close contact with the surface of the flange workpiece 5, the first elastic member 34 is in a state of being squeezed and deformed. Then, the output end of the actuator 2 drives the cone 331 to perform a circular motion on the flange workpiece 5. During the process that the actuator 2 drives the cone 331 to perform a circular motion on the flange workpiece 5, if the surface of the flange workpiece 5 is not flat enough, under the action of the elastic force of the first elastic member 34, the cone 331 will always be in close contact with the surface of the flange workpiece 5, and the slide rod 33 will have a relative displacement in the vertical direction within the sleeve 31. The acquisition end of the infrared sensor 35 acquires the displacement change of the slide rod 33 and converts the optical signal into an electrical signal. The flatness and irregularity of the surface of the flange workpiece 5 are measured by using an optical method as a feature. When the cone 331 rotates one week on the flange workpiece 5, the local detection of the surface of the flange workpiece 5 is completed. Then, the position of the cone 331 on the flange workpiece 5 is adjusted, and then the cone 331 is driven to rotate one week again. In this way, the overall flatness detection of the surface of the flange workpiece 5 can be completed. As the cone 331 performs a circular motion on the flange workpiece 5, when the cone 331 moves into the mounting hole 51, refer to Figure 5 As shown, at this time, there is no longer any support at the bottom of the cone 331. Under the action of the elastic force of the first elastic member 34, the cone 331 moves vertically downward and moves to the maximum displacement of its stroke. At this time, there is no need to stop the circular motion of the cone 331. Continue to drive the cone 331 to move. Refer to Figure 6 , the conical surface of the cone 331 contacts the inner wall of the mounting hole 51. As the horizontal rotation of the cone 331 continues, the inner wall of the mounting hole 51 can make the cone 331 slide along its own inclined conical surface, causing the cone 331 to move vertically upward. With the cooperation of the inclined conical surface of the cone 331 and the rounded corner at the bottom of the cone 331, the bottom of the cone 331 moves to the surface of the flange workpiece 5. At this time, the first elastic member 34 is compressed. The infrared sensor 35 can identify that the cone 331 enters the mounting hole 51 according to the height change of the abnormal amount of the slide rod 33. When the cone 331 moves to the surface of the flange workpiece 5 and then continues to move, the complete flatness detection of the surface of the flange workpiece 5 is realized. The design of the cone 331 is such that when any position of its inclined conical surface contacts the inner wall of the mounting hole 51, it can drive the cone 331 to move vertically upward.

[0041] Compared with the prior art, after the cone 331 moves into the mounting hole 51, there is no need to drive the cone 331 to stop horizontal movement. Through the extrusion of the mounting hole 51 and the inclined conical surface of the cone 331, the cone 331 can be driven to automatically move vertically upward and leave the mounting hole 51. The detection process will not be interrupted, continuous monitoring can be achieved, the detection time is shortened, and the detection efficiency is improved.

[0042] Different from the above-mentioned detection of the moving trajectory, while the output end of the driving actuator 2 drives the cone 331 to perform a circular motion on the flange workpiece 5, the distance between the cone 331 and the circle of the flange workpiece 5 is changed, so that the cone 331 performs a broken-line circular motion on the flange workpiece 5. The broken-line circular motion can make the cone 331 contact the surface of the flange workpiece 5 at different angles and directions, thereby achieving a wider coverage of the surface of the flange workpiece 5. This can better identify any local defects or irregularities that may affect the flatness of the flange workpiece 5, increase the number and diversity of data collection points, which helps to improve the accuracy and reliability of the detection results. And when detecting a large-size flange workpiece 5, although this motion mode may seem more complex than a simple circular motion, in fact, it can optimize the time efficiency of the entire detection process by reducing the repeated scanning of the same area. If the cone 331 enters the mounting hole 51, it can still be moved out of the mounting hole 51 automatically in the above-mentioned manner.

[0043] Refer to the attached drawings of the specification Figures 7 to 10 When the cone 331 cooperates with the infrared sensor 35 to detect the unevenness of the surface of the flange workpiece 5, in order to be able to mark the unevenness for the convenience of the staff to repair the surface of the flange workpiece 5 later. Specifically, a defect marking component 4 is provided on the sleeve 31. The defect marking component 4 includes a storage cylinder 43, the storage cylinder 43 is fixedly sleeved on the sleeve 31, the top end of the sliding rod 33 is fixedly provided with a sliding seat 32, the sliding seat 32 is slidably arranged in the sleeve 31, a groove is opened in the sliding seat 32, a plurality of through holes one 311 are opened in the sleeve 31, a through hole two 321 is opened in the sliding seat 32, the through hole two 321 is adapted to the through hole one 311, and a discharge hole is opened in the cone 331, and the groove is communicated with the discharge hole.

[0044] It should be noted that a feed valve is fixedly communicated with the storage cylinder 43, and the feed valve is used to convey the marking pigment into the storage cylinder 43. A trachea is fixedly communicated with the storage cylinder 43, and the trachea can prevent the inside of the storage cylinder 43 from being in a sealed state. An auxiliary plate is fixedly provided at the top of the sliding seat 32, and the auxiliary plate is located above the fixing ring, which is convenient for the acquisition end of the infrared sensor 35 to identify the displacement change of the sliding seat 32. The through hole one 311 is opened on the sleeve 31 as Figure 8 shown, and the through hole two 321 is located between two corresponding through holes one 311.

[0045] It should also be noted that when the output end of the actuator 2 drives the cone 331 to perform a circular motion on the flange workpiece 5, if the surface of the flange workpiece 5 is uneven, the cone 331 can always be closely attached to the surface of the flange workpiece 5 under the action of the elastic force of the first elastic member 34. At the same time, a relative displacement is generated between the sliding seat 32 and the sleeve 31. Whether the sliding seat 32 moves upward or downward in the sleeve 31, the second through hole 321 will communicate with the corresponding first through hole 311. The marking pigment in the storage cylinder 43 will be discharged through the discharge hole onto the flange workpiece 5, realizing automatic marking of the surface defects of the flange workpiece 5, which is convenient for subsequent workers to repair the surface of the flange workpiece 5. During the process of the cone 331 entering the mounting hole 51, under the action of the elastic force of the first elastic member 34, the sliding seat 32 will also generate a downward displacement, and the marking pigment in the storage cylinder 43 will also be discharged through the discharge hole. When the sliding seat 32 moves to the lowest position of the stroke, the second through hole 321 is in a blocked state, but the marking pigment in the storage cylinder 43 will also be discharged through the discharge hole, and the cone 331 is already located in the mounting hole 51. That is to say, when the cone 331 enters the mounting hole 51, although the marking pigment will be discharged through the discharge hole, the marking pigment will not cover the flange workpiece 5, and the marking pigment will only adhere to the conveyor belt 13. Then, as long as the pigment on the conveyor belt 13 is cleaned up later, and the waste of a small amount of marking pigment will not cause any negative impact on the present invention.

[0046] Refer to the attached drawings of the specification Figures 7 to 10 When the cone 331 moves out of the mounting hole 51, the sliding seat 32 will generate a vertically upward movement in the sleeve 31. Then, the second through hole 321 will also have a short communication time with the first through hole 311. When the cone 331 moves out of the mounting hole 51 and initially contacts the surface of the flange workpiece 5, some marking pigment will still adhere to the inner wall of the mounting hole 51 or near the mounting hole 51 on the surface of the flange workpiece 5. To avoid this situation, specifically, the defect marking component 4 further includes an adapter seat 41. The adapter seat 41 is slidably arranged in the groove. A discharge hole 411 is formed in the adapter seat 41. The discharge hole 411 is adapted to the second through hole 321. A connecting pipe 42 is fixedly connected to the discharge hole 411. The connecting pipe 42 is slidably arranged in the sliding rod 33. The connecting pipe 42 is communicated with the discharge hole. An elastic member two 44 is arranged between the top of the adapter seat 41 and the inner wall of the sleeve 31. A stabilizing seat 322 is fixedly arranged in the groove. The stabilizing seat 322 is adapted to the adapter seat 41. A first limiting seat 312 is fixedly arranged in the sleeve 31. The first limiting seat 312 is used to limit the top of the adapter seat 41.

[0047] It should be noted that an auxiliary rod is fixedly arranged on the adapter seat 41. The bottom end of the auxiliary rod is fixedly arranged with the adapter seat 41. A support seat is fixedly arranged in the sleeve 31. The support seat is located above the fixed ring. The elastic member two 44 is set as a spring. The top end of the spring is fixedly arranged with the support seat, and the bottom end of the spring is fixedly arranged with the auxiliary rod. The limit seat one 312 is used to indicate the vertical upward movement of the adapter seat 41.

[0048] It should also be noted that the elastic force of the elastic member one 34 is greater than that of the elastic member two 44. The adapter seat 41 is slidably arranged in the slide seat 32. The elastic member two 44 serves as the support of the adapter seat 41, and the vertical sliding of the slide seat 32 will not affect the vertical movement of the adapter seat 41.

[0049] In this embodiment, the cone 331 always fits on the surface of the flange workpiece 5 to detect the flatness of the surface of the flange workpiece 5. If there is unevenness on the surface of the flange workpiece 5, the slide seat 32 will have a vertical displacement. The marking pigment in the storage cylinder 43 enters the discharge hole 411 through the through hole one 311 and the through hole two 321, and the marking pigment finally discharges through the connecting pipe 42. When the cone 331 moves into the mounting hole 51, referring to Figure 9 , under the action of the elastic force of the elastic member one 34, the slide seat 32 is driven to move vertically downward. In the initial stage of the vertical downward movement of the slide seat 32, the adapter seat 41 remains stationary. The marking pigment in the storage cylinder 43 enters the discharge hole 411 through the through hole one 311 and the through hole two 321. As the slide seat 32 continues to move downward, the stable seat 322 pushes the adapter seat 41 to move downward. At this time, the discharge hole 411 is not communicated with the through hole two 321, and finally the pigment falls into the mounting hole 51, referring to Figure 10 , that is, the slide seat 32 first moves vertically downward, and then under the action of the stable seat 322, the slide seat 32 and the adapter seat 41 move synchronously downward. During the synchronous downward movement of the slide seat 32 and the adapter seat 41, the discharge hole 411 is not communicated with the through hole two 321. When the inclined conical surface of the cone 331 fits with the inner wall of the mounting hole 51 and pushes the cone 331 to move vertically upward, the cone 331 moves vertically upward to push the slide seat 32 to move vertically upward. When the slide seat 32 moves vertically upward, the stable seat 322 also moves vertically upward synchronously. In the initial stage, under the action of the elastic force of the elastic member two 44, the adapter seat 41 also moves upward synchronously, that is, the slide seat 32 and the adapter seat 41 move synchronously upward. During the synchronous upward movement of the slide seat 32 and the adapter seat 41, the through hole two 321 and the discharge hole 411 are always not communicated. As the slide seat 32 and the adapter seat 41 continue to move upward, the limit seat one 312 limits the adapter seat 41, and then the slide seat 32 continues to move upward until the cone 331 fits with the surface of the flange workpiece 5, and the adapter seat 41 and the slide seat 32 are reset to Figure 8 the state, so as to avoid the marking pigment adhering to the inner wall of the mounting hole 51 or near the mounting hole 51 on the surface of the flange workpiece 5.

[0050] Refer to the attached Figures 1 to 3, in order to facilitate the rotation of the driving sleeve 31 along the surface of the flange workpiece 5. Specifically, the actuator 2 includes a fixing plate 21, on which a linear actuator two 22 and a rotary actuator 23 are fixedly arranged. A first transmission wheel 24 is fixedly arranged on the output shaft of the rotary actuator 23. A second transmission wheel 25 is rotatably arranged on the fixing plate 21. The first transmission wheel 24 and the second transmission wheel 25 are connected by the same belt. A connecting rod 26 is rotatably arranged on the output end of the linear actuator two 22. The connecting rod 26 is slidably arranged with the second transmission wheel 25. A linear actuator three 27 is fixedly arranged at the bottom end of the connecting rod 26. A vision recognition device 28 is fixedly arranged at the bottom of the fixing plate 21. A protrusion 261 is fixedly arranged on the connecting rod 26. An auxiliary hole is formed on the second transmission wheel 25, and a connecting hole is formed on the inner wall of the auxiliary hole. The connecting rod 26 is slidably arranged in the auxiliary hole, and the protrusion 261 is slidably arranged in the connecting hole.

[0051] It should be noted that the linear actuator two 22 includes but is not limited to being set as a hydraulic cylinder, which is fixedly installed on the fixing plate 21. A connecting plate is fixedly arranged on the output end of the linear actuator two 22. The connecting rod 26 is rotatably arranged on the connecting plate. The rotary actuator 23 is set as a motor, and the first transmission wheel 24 is fixedly arranged on the output shaft of the motor. The linear actuator three 27 includes but is not limited to being set as a cylinder, which is fixedly arranged at the bottom end of the protrusion 261. The acquisition end of the vision recognition device 28 is arranged towards the flange workpiece 5 on the conveyor belt 13. The conveyor belt 13 moves to convey the flange workpiece 5. When the vision recognition device 28 recognizes that the connecting rod 26 and the flange workpiece 5 are concentric, it converts the optical signal into an electrical signal to stop the conveyor belt 13 from driving. The vision recognition device 28 emits and collects the optical signal and converts it into an electrical signal, which is a mature prior art and will not be elaborated here too much.

[0052] It should also be noted that when the linear actuator two 22 is started, the movement of the output shaft of the linear actuator two 22 drives the connecting plate to move vertically. The vertical movement of the connecting plate drives the connecting rod 26 to move. The connecting rod 26 drives the linear actuator three 27 to move vertically. When the rotary actuator 23 is started, the rotation of the output shaft of the rotary actuator 23 drives the first transmission wheel 24 to rotate. The first transmission wheel 24 drives the second transmission wheel 25 to rotate through the belt. Under the limiting effect of the protrusion 261, the rotation of the second transmission wheel 25 synchronously drives the connecting rod 26 to rotate, achieving the effect of driving the linear actuator three 27 to rotate horizontally.

[0053] Furthermore, it should be noted that regarding the setting of the air source pipeline and other connecting pipelines of the linear actuator three 27, after the cone 331 rotates clockwise along the surface of the flange workpiece 5 for one week, the cone 331 can be driven to rotate counterclockwise for one week. Therefore, there will be no pipeline entanglement or other interference situations. This is a mature prior art and will not be elaborated here too much.

[0054] Refer to the attached drawings of the specificationFigure 1 , Figure 11 and Figure 12 , in order to facilitate the surface flatness detection of a batch of flange workpieces 5. Specifically, the conveying mechanism 1 includes a first support frame 11, two driving rollers 12 are rotatably arranged on the first support frame 11, a conveyor belt 13 is drivingly arranged on the two driving rollers 12, a push plate 14 is slidably arranged on the first support frame 11, and a first linear driver 15 is fixedly arranged on the first support frame 11. The output end of the first linear driver 15 is fixedly arranged with the push plate 14. A second support frame is fixedly arranged on the first support frame 11, and a fixing plate 21 is fixedly arranged on the second support frame. A plurality of positioning plates 141 are fixedly arranged on the push plate 14. The plurality of positioning plates 141 are arranged at equal intervals on the push plate 14, and the positioning plates 141 are used to position the flange workpiece 5.

[0055] It should be noted that a support plate is fixedly arranged on the first support frame 11. The support plate is located between the annular conveyor belts 13, and the support plate is used to support the flange workpiece 5 placed on the conveyor belt 13. A motor is fixedly arranged on the first support frame 11, and the output shaft of the motor is fixedly arranged with the driving roller 12. The first linear driver 15 is arranged as a hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly arranged with the push plate 14. A cleaning layer is fixedly arranged on the first support frame 11. The cleaning layer includes but is not limited to being arranged as cotton cloth. The cleaning layer is attached to the outer surface of the conveyor belt 13. As the conveyor belt 13 is continuously driven, the cleaning layer can clean the marking pigment attached to the surface of the conveyor belt 13.

[0056] It should also be noted that the flange workpiece 5 is placed on the conveyor belt 13, the motor is started, the output shaft of the motor drives the driving roller 12 to rotate, the rotation of the driving roller 12 drives the conveyor belt 13, and the movement of the conveyor belt 13 is used to convey the flange workpiece 5. The first linear driver 15 is started, and the movement of the output end of the first linear driver 15 drives the push plate 14 to move. The push plate 14 pushes the flange workpiece 5 on the conveyor belt 13, so that the flange workpiece 5 is located in the middle of the conveyor belt 13. By arranging the positioning plates 141, when the surface flatness of the flange workpiece 5 is detected, the flange workpiece 5 can be positioned to prevent the flange workpiece 5 from shifting in position.

[0057] Refer to the attached drawings of the specification Figure 14 , a detection method of a flange quality detection device, includes the following steps: Step 1: Place the flange workpiece 5 on the conveyor belt 13, start the motor to drive the driving roller 12 to rotate, and the driving roller 12 drives the conveyor belt 13 to move the flange workpiece 5 to the lower part of the connecting rod 26, so that the flange workpiece 5 is concentric with the connecting rod 26; Step 2: Start linear driver two 22. The moving drive at the output end of linear driver two 22 drives the drive sleeve 31 to move vertically downward, so that the bottom of the cone 331 is in close contact with the top of the flange workpiece 5. Then start the rotary driver 23. The output shaft of the rotary driver 23 drives the second transmission wheel 25 to rotate synchronously. The second transmission wheel 25 drives the cone 331 to perform a circular motion on the top of the flange workpiece 5 through the connecting rod 26; Step 3: The cone 331 rotates one week on the top of the flange workpiece 5 to detect the flatness of the surface of the flange workpiece 5. Then start the linear driver three 27. The moving drive at the output end of the linear driver three 27 drives the horizontal position of the cone 331 on the flange workpiece 5; Step 4: When the surface of the flange workpiece 5 is uneven, the bottom of the cone 331 sprays paint to mark the uneven places on the surface of the flange workpiece 5.

[0058] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A flange quality inspection device, characterized in that, It includes a conveying mechanism (1), on which a conveyor belt (13) is drivingly arranged, and the conveyor belt (13) is used to convey flange workpieces (5); An actuating mechanism (2) is arranged on the conveying mechanism (1). A linear actuator three (27) is arranged on the output end of the actuating mechanism (2). A quality inspection mechanism (3) is arranged on the output end of the linear actuator three (27). The quality inspection mechanism (3) includes a sleeve (31). A slide bar (33) is slidably arranged in the sleeve (31). An elastic member one (34) is arranged between the top end of the slide bar (33) and the inner wall of the sleeve (31). An infrared sensor (35) is arranged in the sleeve (31); A cone (331) is arranged at the bottom end of the slide bar (33), and the bottom end of the cone (331) is provided with a rounded corner; During detection, the output end of the actuating mechanism (2) applies a vertically downward pressure to the slide bar (33) to make the bottom end of the slide bar (33) closely fit the surface of the flange workpiece (5). The output end of the actuating mechanism (2) drives the slide bar (33) to horizontally move on the surface of the flange workpiece (5). The acquisition end of the infrared sensor (35) is used to identify the displacement of the slide bar (33) in the sleeve (31). After the cone (331) is located in the mounting hole (51), the output end of the actuating mechanism (2) drives the slide bar (33) in the mounting hole (51) to horizontally move. The conical surface of the cone (331) fits and presses the cone (331) against the inner wall of the mounting hole (51) to make the slide bar (33) move vertically upward.

2. The flange quality inspection device according to claim 1, characterized in that: A defect marking component (4) is arranged on the sleeve (31). The defect marking component (4) includes a storage cylinder (43). The storage cylinder (43) is fixedly sleeved on the sleeve (31). A slide seat (32) is fixedly arranged at the top end of the slide bar (33). The slide seat (32) is slidably arranged in the sleeve (31). A groove is formed in the slide seat (32). A plurality of through holes one (311) are formed in the sleeve (31). A through hole two (321) is formed in the slide seat (32). The through hole two (321) is adapted to the through hole one (311). A discharge hole is formed in the cone (331), and the groove is communicated with the discharge hole.

3. The flange quality detection device according to claim 2, wherein: The defect marking component (4) further includes an adapter seat (41). The adapter seat (41) is slidably arranged in the groove. A discharge hole (411) is formed in the adapter seat (41). The discharge hole (411) is adapted to the through hole two (321). A connecting pipe (42) is fixedly communicated with the discharge hole (411). The connecting pipe (42) is slidably arranged in the slide bar (33). The connecting pipe (42) is communicated with the discharge hole. An elastic member two (44) is arranged between the top of the adapter seat (41) and the inner wall of the sleeve (31). A stabilizing seat (322) is fixedly arranged in the groove. The stabilizing seat (322) is adapted to the adapter seat (41).

4. A flange quality inspection device according to claim 3, characterized in that: A limiting seat one (312) is fixedly arranged in the sleeve (31), and the limiting seat one (312) is used to limit the top of the adapter seat (41).

5. A flange quality inspection device according to claim 4, characterized in that: The actuator (2) includes a fixing plate (21). A second linear driver (22) and a rotary driver (23) are fixedly arranged on the fixing plate (21). A first transmission wheel (24) is fixedly arranged on the output shaft of the rotary driver (23). A second transmission wheel (25) is rotatably arranged on the fixing plate (21). The first transmission wheel (24) and the second transmission wheel (25) are connected by the same belt. A connecting rod (26) is rotatably arranged at the output end of the second linear driver (22). The connecting rod (26) is slidably arranged with the second transmission wheel (25). A third linear driver (27) is fixedly arranged at the bottom end of the connecting rod (26). A vision recognition device (28) is fixedly arranged at the bottom of the fixing plate (21).

6. The flange quality inspection device according to claim 5, characterized in that: A protrusion (261) is fixedly arranged on the connecting rod (26). An auxiliary hole is formed in the second transmission wheel (25). A connecting hole is formed in the inner wall of the auxiliary hole. The connecting rod (26) is slidably arranged in the auxiliary hole. The protrusion (261) is slidably arranged in the connecting hole.

7. The flange quality inspection device according to claim 6, characterized in that: The conveying mechanism (1) includes a first support frame (11). Two transmission rollers (12) are rotatably arranged on the first support frame (11). A conveyor belt (13) is arranged on the two transmission rollers (12) in a transmission manner. A push plate (14) is slidably arranged on the first support frame (11). A first linear driver (15) is fixedly arranged on the first support frame (11). The output end of the first linear driver (15) is fixedly arranged with the push plate (14).

8. The flange quality detection device according to claim 7, wherein: A second support frame is fixedly arranged on the first support frame (11). The fixing plate (21) is fixedly arranged on the second support frame.

9. The flange quality detection device according to claim 8, wherein: A plurality of positioning plates (141) are fixedly arranged on the push plate (14). The plurality of positioning plates (141) are arranged on the push plate (14) at equal intervals. The positioning plates (141) are used for positioning the flange workpiece (5).

10. A detection method for the flange quality detection device as described in claim 9, characterized in that, It includes the following steps: Step 1: Place the flange workpiece (5) on the conveyor belt (13). Start the motor to drive the transmission roller (12) to rotate. The transmission roller (12) drives the conveyor belt (13) to move the flange workpiece (5) below the connecting rod (26) so that the flange workpiece (5) and the connecting rod (26) are concentrically arranged. Step 2: Start the second linear driver (22). The movement of the output end of the second linear driver (22) drives the sleeve (31) to move vertically downward so that the bottom of the cone (331) is in close contact with the top of the flange workpiece (5). Then start the rotary driver (23). The output shaft of the rotary driver (23) drives the second transmission wheel (25) to rotate synchronously. The second transmission wheel (25) drives the cone (331) to perform a circular motion on the top of the flange workpiece (5) through the connecting rod (26). Step 3: The cone (331) rotates one week on the top of the flange workpiece (5) to detect the flatness of the surface of the flange workpiece (5). Then start the third linear driver (27). The movement of the output end of the third linear driver (27) drives the cone (331) to move horizontally on the flange workpiece (5). Step 4: When the surface of the flange workpiece (5) is uneven, paint is ejected from the bottom of the cone (331) to mark the uneven areas on the surface of the flange workpiece (5).

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