A three-roll linkage adjustable CNC plate rolling machine and its usage method

Abstract

This invention discloses a three-roll linkage adjustable CNC plate rolling machine and its usage method, belonging to the field of plate rolling machine technology. It includes a base plate, a plate identification module, an auxiliary loading module, a plate rolling detection module, and an adjustment prompt module. A CNC table is mounted on the top of the base plate, and a rolling roller support frame is also mounted on the top of the base plate. The plate rolling detection module is located on the front of the rolling roller support frame. The adjustment prompt module is wirelessly connected to the plate identification module, the auxiliary loading module, the plate rolling detection module, and the CNC table. This invention, by installing the plate rolling detection module, converts the distance signal detected by the laser rangefinder into the coordinate signal of the measured point. By obtaining the radius of curvature of the circle containing the measured point, it achieves real-time online detection of the radius of curvature of the inner wall of the rolled plate, avoiding the dangers or errors of manual inspection and improving detection efficiency and accuracy.

Description

Technical Field

[0001] This invention relates to the field of plate rolling machine technology, specifically to a three-roll linkage adjustable CNC plate rolling machine and its usage method. Background Technology

[0002] A plate rolling machine is a processing device that continuously bends sheet metal into the required circular shape. Three-roll plate rolling machines are divided into hydraulic and mechanical types, which adjust the position of the upper and lower rolling rollers through different driving methods. After the plate rolling machine rolls the sheet metal, it is necessary to measure whether the rolled sheet is the required size. However, existing plate rolling machines generally need to be stopped after rolling, and the rolled sheet metal is inspected manually. The inspection efficiency is low, and manual inspection is prone to danger and inspection errors.

[0003] The existing CNC plate rolling machines have the following drawbacks:

[0004] 1. Patent document CN102632115B mainly focuses on how to improve the rolling accuracy of the plate rolling machine, but does not consider the issue of manual inspection of the rolled plate after the plate rolling machine needs to be stopped.

[0005] 2. The application document US20100089114A1 mainly considers the issue of adjusting the relative position of the upper and lower rollers, but lacks the function of identifying the material to be rolled and determining the size and placement position of the material to be rolled.

[0006] 3. Patent document KR1020130040998A mainly considers how to quickly roll different types of boards, but lacks the function of adjusting the rolling machine after receiving information about different types of boards.

[0007] 4. The main consideration in patent document CN101596561B is how to simplify the structure of the plate rolling machine and make it easier to operate. It eliminates the problem of manually pushing the plate to feed the material when using the plate rolling machine. Summary of the Invention

[0008] The purpose of this invention is to provide a three-roll linkage adjustable CNC plate rolling machine and its usage method to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a three-roll linkage adjustable CNC plate rolling machine, comprising a base plate, a plate identification module, an auxiliary loading module, a plate rolling detection module, and an adjustment prompt module;

[0010] A CNC table is installed on the top of the base plate, and a roller support frame is installed on the top of the base plate, with the roller support frame located behind the CNC table. A plate detection module is provided on the front of the roller support frame, and an adjustment prompt module is installed on the top of the roller support frame. An auxiliary plate loading module is provided on the top of the base plate, with the auxiliary plate loading module located on the right side of the roller support frame. A plate identification module is provided on the front of the auxiliary plate loading module. The adjustment prompt module is wirelessly connected to the plate identification module, the auxiliary loading module, the plate detection module, and the CNC table.

[0011] The board material identification module is used to identify and locate the size and position information of the board material to be rolled, and output feedback control commands based on the feature information. The auxiliary loading module assists the board material to be rolled in moving and pushes it into the rolling machine for rolling operation. The rolling detection module is used to detect the size of the rolled board material after the rolling operation and output the detection result. The adjustment prompt module is used to adjust the position of the auxiliary loading module according to the feedback control commands output by the board material identification module to assist the movement of boards of different sizes. The CNC table is used to compare the detection result output by the rolling detection module and output a comparison result to the adjustment prompt module. The adjustment prompt module also prompts the qualified rolled board material based on the comparison result output by the CNC table.

[0012] Preferably, an adjusting block is slidably connected to the inner wall of the roller support frame, an upper roller passes through the back of the adjusting block, a hollow rod is fixedly installed on the back of the adjusting block, and the hollow rod is located above the upper roller. Three sets of insulating detection rings are sleeved on the outer wall of the hollow rod, and three sets of laser ranging sensors are equidistantly installed on the outer wall of each set of insulating detection rings, and the laser ranging sensors are electrically connected to the plate detection module.

[0013] The rolled plate inspection module includes a coordinate system establishment unit, a data receiving and conversion unit, a circular equation calculation unit, and a rolled plate analysis unit.

[0014] The coordinate system establishment unit is used to establish a Cartesian coordinate system in plane M, with the center of each set of insulation detection rings as the origin, in the plane M containing the three sets of laser ranging sensors on the outer wall of the same insulation detection ring. The vertical line passing through the center of the ring in plane M is designated as the ordinate axis, and the horizontal line passing through the center of the ring in plane M is designated as the abscissa axis. The unit also determines the position coordinates Ai of the laser ranging sensors, where Ai ∈ {(pi, qi) | i = 1, 2, 3}.

[0015] Where i is the serial number of the laser rangefinder, p is the abscissa of the laser rangefinder in a Cartesian coordinate system, and q is the ordinate of the laser rangefinder in a Cartesian coordinate system.

[0016] The data receiving and conversion unit receives the distance signal measured by the laser rangefinder and converts it into the coordinate signal (xi, yi) of the measured point on the inner wall of the roll plate through a conversion algorithm. This determines the position of the measured point in a Cartesian coordinate system. The conversion algorithm is as follows:

[0017] xi² + yi² = (di + r)², (xi - pi)² + (yi - qi)² = di²

[0018] Where r is the outer radius of the insulation detection ring, d is the straight-line distance between the laser rangefinder and the corresponding measured point on the inner wall of the roll plate, x is the abscissa of the measured point in the plane rectangular coordinate system, and y is the ordinate of the measured point in the plane rectangular coordinate system.

[0019] The circular equation calculation unit is used to calculate the coordinate signal (xi, yi) of the measured point on the inner wall of the roll plate, using (xi-a)² + (yi-b)² = R².

[0020] Calculate the equation of the circle formed by the measured points in plane M, and obtain a, b, and R.

[0021] Where a is the x-coordinate of the center of the circle formed by the measured points, b is the y-coordinate of the center of the circle formed by the measured points, and R is the radius of the circle.

[0022] The post-rolling sheet analysis unit receives the circle equation calculation results output by the circle equation calculation unit. Based on the radius of curvature calculation formula: R=1 / Ke, it analyzes and calculates the radius of curvature of the inner wall of the post-rolling sheet, denoted as Kf, where Kf=Ke, and Ke is the radius of curvature of the circle formed by the measured points. The detection results are then transmitted to the CNC table.

[0023] Preferably, an auxiliary frame is installed on the top of the base plate, and the auxiliary frame is located on the right side of the roll support frame. The auxiliary plate loading module is located in front of the auxiliary frame. A fixed roller is installed through the back of the auxiliary frame. The fixed roller is used to provide support for the material to be rolled. The auxiliary plate loading module includes a sliding block, an electric push rod, and an auxiliary roller. The bottom of the sliding block is slidably connected to the top of the base plate, and the back of the sliding block is slidably connected to the front of the auxiliary frame. An electric push rod is installed on the top of the sliding block. A fixed block is installed at the output end of the electric push rod. The two ends of the auxiliary roller pass through the front and back of two sets of fixed blocks, respectively. An auxiliary push frame is installed on the top of the sliding block, and the auxiliary push frame is located on the right side of the auxiliary roller. A servo motor is installed on the top of the base plate, and the servo motor is located in front of the auxiliary frame. A lead screw is connected to the output end of the servo motor, and the lead screw passes through the outer wall of the sliding block.

[0024] Preferably, a first industrial camera is installed on the top of the base plate and is located below the fixed roller for capturing the bottom image of the sheet material to be rolled. A second industrial camera is installed on the inner wall of the auxiliary push frame for capturing the side image of the sheet material to be rolled. A sheet material recognition module is installed on the front of the sliding block and is electrically connected to the first and second industrial cameras.

[0025] The board material recognition module includes an image information receiving unit, a size feature recognition unit, and a feedback information output unit. The image information receiving unit is used to receive bottom and side image information of the board material to be rolled from the first industrial camera and the second industrial camera. The size feature recognition unit is used to extract the length, width, and thickness feature information of the board material to be rolled from the image information in the image information receiving unit and record them as l, w, and h, and determine the placement position of the board material to be rolled. The feedback information output unit is used to output feedback control commands to the adjustment prompt module according to the feature information.

[0026] Preferably, the adjustment prompt module includes an insulation detection ring position adjustment unit, an auxiliary roller position adjustment unit, and a rolled-up sheet material prompt unit. The auxiliary roller position adjustment unit is used to send a lifting adjustment control command to the electric push rod according to the feedback control command output by the feedback information output unit.

[0027] An electromagnet is installed on the inner wall of the insulation detection ring, and the electromagnet is slidably connected to the outer wall of the hollow rod. The outer wall of the hollow rod is marked with scale lines. A battery is installed inside the insulation detection ring, and a control switch is installed on the top of the battery. The battery, electromagnet and control switch form a closed loop. The insulation detection ring position adjustment unit is used to receive feedback control commands from the feedback information output and send loop on / off commands to the control switch.

[0028] Preferably, the CNC console includes a standard value input unit, a roll-up plate inspection result receiving unit, a data comparison unit, and a comparison result output unit. The standard value input unit is used to set a standard value for the radius of curvature of the inner wall of the roll-up plate, denoted as Kg. The roll-up plate inspection result receiving unit is used to receive the detected value Kf of the radius of curvature of the inner wall of the roll-up plate. The data comparison unit is used to compare the standard value of the radius of curvature of the inner wall of the roll-up plate with the detected value of the radius of curvature of the inner wall of the roll-up plate.

[0029] When the comparison result is Kf > Kg, the comparison result output unit outputs a comparison result of "coil not meeting the standard" to the coiled sheet prompt unit.

[0030] When the comparison result is Kf=Kg, the comparison result output unit outputs the comparison result "coiled plate meets the standard" to the coiled plate prompt unit.

[0031] Preferably, the after-roll sheet material prompting unit includes one or more of a voice broadcaster or an audible and visual alarm. The after-roll sheet material prompting unit determines whether to prompt the after-roll sheet material detection result based on the output result of the data comparison unit.

[0032] Preferably, a lower roller is installed through the back of the roller support frame, a gear 1 is sleeved on the outer wall of the lower roller, and the gear 1 is located in front of the roller support frame. A drive motor is installed on the top of the base plate and is electrically connected to the CNC table. A reducer is connected to the output end of the drive motor. A gear 2 is sleeved on the outer wall of the output end of the reducer and meshes with the gear 1. A hydraulic push rod is installed on the top of the roller support frame, and the output end of the hydraulic push rod is connected to the top of the adjusting block. The hydraulic push rod is located to the right of the adjusting indicator module.

[0033] A method for using a three-roll adjustable CNC plate rolling machine is as follows:

[0034] S1. Place the sheet material to be rolled on top of the fixed roller. Use the first industrial camera and the second industrial camera to capture images of the bottom and side of the sheet material to be rolled, respectively. Transmit the graphic information to the sheet material recognition module to identify the sheet material size features and determine the placement position. Output control commands to the adjustment prompt module.

[0035] S2. The adjustment prompt module sends lifting adjustment control commands to the electric push rod based on the thickness characteristic information of the sheet material to be rolled output by the size recognition unit and the control commands output by the feedback information output unit, to adjust the position of the auxiliary roller. Based on the length, width and placement position characteristic information of the sheet material to be rolled, the module sends control commands to the insulation detection ring position adjustment unit to adjust the installation position of the insulation detection ring.

[0036] S3. The drive motor starts and drives the lower rolling roller of the plate rolling machine to rotate through the reducer, gear two and gear one. The servo motor starts and drives the sliding block to move, and adjusts the auxiliary plate to push the plate to be rolled to move. With the assistance of the fixed roller and the auxiliary roller, it enters the upper rolling roller and the lower rolling roller of the plate rolling machine to perform the rolling operation.

[0037] S4. The coordinate system establishment unit establishes three sets of Cartesian coordinate systems based on the center of the insulation detection ring and the plane where the laser range sensor is located on the outer wall of the insulation detection ring. The laser range sensor detects the straight-line distance to the measured point on the inner wall of the rolled plate in the same plane. Then, the data receiving and conversion unit converts the distance data into coordinate data. The circumference equation calculation unit calculates the circumference equation of the circle where the measured point is located based on the coordinate data. The rolled plate analysis unit obtains the radius of curvature of the inner wall of the cross section of the rolled plate in the Cartesian coordinate system plane through the circumference equation, and then transmits the radius of curvature detection result to the CNC table.

[0038] S5. The CNC console compares the radius of curvature detection result with the radius of curvature standard value through the data comparison unit, and the comparison result is transmitted to the adjustment prompt module through the comparison result output unit.

[0039] Preferably, step S2 further includes the following steps:

[0040] S21. The insulation detection ring position adjustment unit receives the length, width and placement position information of the sheet material to be rolled from the feedback information output unit, sends a disconnect command to the control switch, adjusts the insulation detection ring to the corresponding position in conjunction with the scale markings on the outer wall of the hollow rod, and then sends a close command to the control switch. The battery supplies power to the electromagnet to fix the insulation detection ring.

[0041] Step S5 further includes the following steps:

[0042] S51. The post-rolling board prompting unit receives the comparison result output by the comparison result output unit. When the input comparison result is "rolling board not up to standard", the post-rolling board prompting unit does not make a prompt, and the rolling machine continues to perform the rolling operation. When the input comparison result is "rolling board up to standard", the post-rolling board prompting unit issues a prompt, the drive motor is turned off, and the rolling machine stops the rolling operation.

[0043] Compared with the prior art, the beneficial effects of the present invention are:

[0044] 1. This invention, by installing a plate detection module, converts the distance signal detected by the laser rangefinder into the coordinate signal of the measured point. By obtaining the radius of curvature of the circle where the measured point is located, it achieves the purpose of online real-time detection of the radius of curvature of the inner wall of the plate after rolling, avoiding the danger or error of manual detection, and improving detection efficiency and accuracy of detection results.

[0045] 2. This invention, by installing a board material identification module, achieves the purpose of detecting, identifying, and locating the size and position information of the board material to be rolled, which facilitates sending feedback control commands to the adjustment prompt module according to the size and placement of the board material.

[0046] 3. This invention, by installing an adjustment prompt module, receives feedback control commands from the board material identification module to adjust the auxiliary roller and insulating detection ring, thereby achieving the purpose of assisting in the loading of coiled boards of different sizes and positions and detecting the rolled boards. By receiving the comparison results from the CNC machine, it provides prompts for the rolled boards, improving the detection accuracy of the board rolling detection module and the practicality of the board rolling machine.

[0047] 4. This invention, by installing an auxiliary loading module, allows the electric push rod to move the auxiliary roller downwards according to the feedback control command of the board material recognition module, so that it fits against the top of the board material to be rolled. The drive motor starts, which moves the auxiliary loading module and the auxiliary push plate, pushing the board material to be rolled into the rolling machine for rolling operation. This achieves the purpose of automatic board material feeding, saves labor costs, and speeds up the rolling efficiency of the rolling machine. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0049] Figure 2 This is a schematic diagram of the left side structure of the auxiliary frame of the present invention;

[0050] Figure 3 This is a schematic diagram of the front structure of the roller support frame of the present invention;

[0051] Figure 4 This is a schematic diagram of the left side structure of the auxiliary roller of the present invention;

[0052] Figure 5 This is a schematic diagram of the front structure of the auxiliary pusher frame of the present invention;

[0053] Figure 6 This is a flowchart of the modules of the present invention;

[0054] Figure 7 This is a schematic diagram of the roll plate detection module of the present invention.

[0055] In the diagram: 1. Base plate; 2. Roller support frame; 3. Roll plate detection module; 4. CNC table; 5. Adjusting block; 6. Hollow rod; 7. Insulation detection ring; 8. Laser rangefinder sensor; 9. Auxiliary frame; 10. Fixed roller; 11. Sliding block; 12. Electric push rod; 13. Fixed block; 14. Auxiliary roller; 15. Auxiliary push frame; 16. Servo motor; 17. Lead screw; 18. First industrial camera; 19. Second industrial camera; 20. Plate recognition module; 21. Adjustment prompt module; 22. Electromagnet; 23. Battery; 24. Upper roll; 25. Hydraulic push rod; 26. Lower roll; 27. Gear 1; 28. Drive motor; 29. ​​Reducer; 30. Gear 2. Detailed Implementation

[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0058] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0059] Please see Figure 1 and Figure 6 The present invention provides an embodiment of a three-roll linkage adjustable CNC plate rolling machine, comprising a base plate, a plate identification module, an auxiliary plate loading module, a plate rolling detection module, and an adjustment prompt module;

[0060] A CNC table is installed on the top of the base plate, and a roller support frame is installed on the top of the base plate, with the roller support frame located behind the CNC table. A plate detection module is provided on the front of the roller support frame, and an adjustment prompt module is installed on the top of the roller support frame. An auxiliary plate loading module is provided on the top of the base plate, with the auxiliary plate loading module located on the right side of the roller support frame. A plate identification module is provided on the front of the auxiliary plate loading module. The adjustment prompt module is wirelessly connected to the plate identification module, the auxiliary loading module, the plate detection module, and the CNC table.

[0061] The board material identification module is used to identify and locate the size and position information of the board material to be rolled, and output feedback control commands based on the feature information. The auxiliary board loading module assists the board material to be rolled in moving and pushing it into the rolling machine for rolling operation. The rolling detection module is used to detect the size of the rolled board material after the rolling operation and output the detection result. The adjustment prompt module is used to adjust the position of the auxiliary board loading module based on the feedback control commands output by the board material identification module, and assist the movement of boards of different sizes. The CNC table is used to compare the detection results output by the rolling detection module and output the comparison results to the adjustment prompt module. The adjustment prompt module also prompts the qualified rolled board material based on the comparison results output by the CNC table.

[0062] A lower roller is installed through the back of the roller support frame. Gear 1 is sleeved on the outer wall of the lower roller and is located in front of the roller support frame. A drive motor is installed on the top of the base plate and is electrically connected to the CNC table. A reducer is connected to the output end of the drive motor. Gear 2 is sleeved on the outer wall of the output end of the reducer and meshes with Gear 1. A hydraulic push rod is installed on the top of the roller support frame and the output end of the hydraulic push rod is connected to the top of the adjustment block. The hydraulic push rod is located to the right of the adjustment indicator module.

[0063] Please see Figure 2 , Figure 6 and Figure 7 An embodiment of the present invention provides a three-roll linkage adjustable CNC plate rolling machine, including an adjusting block slidably connected to the inner wall of the rolling roller support frame, an upper rolling roller penetrating through the back of the adjusting block, a hollow rod fixedly installed on the back of the adjusting block, and the hollow rod being located above the upper rolling roller. Three sets of insulating detection rings are sleeved on the outer wall of the hollow rod, and three sets of laser ranging sensors are equidistantly installed on the outer wall of each set of insulating detection rings, and the laser ranging sensors are electrically connected to the plate rolling detection module.

[0064] The rolled plate inspection module includes a coordinate system establishment unit, a data receiving and conversion unit, a circular equation calculation unit, and a rolled plate analysis unit.

[0065] The coordinate system establishment unit is used to establish a Cartesian coordinate system in plane M, with the center of each set of insulation detection rings as the origin, in the plane M containing the three sets of laser ranging sensors on the outer wall of the same insulation detection ring. The vertical line passing through the center of the ring in plane M is designated as the ordinate axis, and the horizontal line passing through the center of the ring in plane M is designated as the abscissa axis. The unit also determines the position coordinates Ai of the laser ranging sensors, where Ai ∈ {(pi, qi) | i = 1, 2, 3}.

[0066] Where i is the serial number of the laser rangefinder, p is the abscissa of the laser rangefinder in a Cartesian coordinate system, and q is the ordinate of the laser rangefinder in a Cartesian coordinate system.

[0067] The data receiving and conversion unit receives the distance signal measured by the laser rangefinder and converts it into the coordinate signal (xi, yi) of the measured point on the inner wall of the roll plate through a conversion algorithm. This determines the position of the measured point in a Cartesian coordinate system. The conversion algorithm is as follows:

[0068] xi² + yi² = (di + r)², (xi - pi)² + (yi - qi)² = di²

[0069] Where r is the outer radius of the insulation detection ring, d is the straight-line distance between the laser rangefinder and the corresponding measured point on the inner wall of the roll plate, x is the abscissa of the measured point in the plane rectangular coordinate system, and y is the ordinate of the measured point in the plane rectangular coordinate system.

[0070] The circular equation calculation unit is used to calculate the coordinate signal (xi, yi) of the measured point on the inner wall of the roll plate, using (xi-a)² + (yi-b)² = R².

[0071] Calculate the equation of the circle formed by the measured points in plane M, and obtain a, b, and R.

[0072] Where a is the x-coordinate of the center of the circle formed by the measured points, b is the y-coordinate of the center of the circle formed by the measured points, and R is the radius of the circle.

[0073] The post-rolling sheet analysis unit receives the circle equation calculation results output by the circle equation calculation unit. Based on the radius of curvature calculation formula: R=1 / Ke, it analyzes and calculates the radius of curvature of the inner wall of the post-rolling sheet, denoted as Kf, and Kf=Ke, where Ke is the radius of curvature of the circle formed by the measured points, and transmits the detection results to the CNC table.

[0074] The CNC console includes a standard value input unit, a post-coil plate inspection result receiving unit, a data comparison unit, and a comparison result output unit. The standard value input unit is used to set the standard value of the inner wall curvature radius of the post-coil plate, denoted as Kg. The post-coil plate inspection result receiving unit is used to receive the detected value Kf of the inner wall curvature radius of the post-coil plate. The data comparison unit is used to compare the standard value of the inner wall curvature radius of the post-coil plate with the detected value of the inner wall curvature radius of the post-coil plate.

[0075] When the comparison result is Kf > Kg, the comparison result output unit outputs a comparison result of "coil not meeting the standard" to the coiled sheet prompt unit.

[0076] When the comparison result is Kf=Kg, the comparison result output unit outputs the comparison result "coiled sheet meets the standard" to the coiled sheet prompt unit;

[0077] The post-rolling board prompting unit includes one or more of a voice broadcaster or an audible and visual alarm. The post-rolling board prompting unit determines whether to prompt the post-rolling board inspection result based on the output result of the data comparison unit. When the post-rolling board prompting unit determines that the input result is "rolling board not up to standard", the post-rolling board prompting unit does not prompt, and the rolling machine continues to perform the rolling operation. When the input comparison result is "rolling board up to standard", the post-rolling board prompting unit issues a prompt, the drive motor is turned off, and the rolling machine stops the rolling operation.

[0078] Furthermore, a Cartesian coordinate system is established in the plane of the laser rangefinder sensor on the outer wall of each insulation detection ring at the center of the coil detection ring by the coil detection module, and the origin and horizontal and vertical axes are determined. The data receiving and conversion unit determines the position coordinates Ai of the laser rangefinder sensor based on the radius of the insulation detection ring and the installation position of the laser rangefinder sensor. The distance signal from the laser rangefinder sensor to the measured point on the inner wall of the coil back plate is converted into the coordinate signal (xi, yi) of the measured point. The circumference equation calculation unit calculates the circle equation of the circle where the measured point is located based on the coordinate signal of the measured point. By analyzing the circle equation, the radius of curvature Ke of the circle where the measured point is located is obtained, and the radius of curvature Kf of the inner wall of the circular section of the coil back plate where the measured point is located is obtained. This achieves the purpose of automatically and in real time detecting the radius of curvature of the coil back plate, improving the detection and coiling efficiency, and avoiding unexpected situations when manually detecting the radius of curvature of the coil back plate.

[0079] Please see Figure 4 , Figure 5 and Figure 6 An embodiment of the present invention provides a three-roll linkage adjustable CNC plate rolling machine, including a first industrial camera installed on the top of the base plate and located below the fixed roller for acquiring the bottom image of the plate to be rolled, a second industrial camera installed on the inner wall of the auxiliary push frame for acquiring the side image of the plate to be rolled, and a plate recognition module installed on the front of the sliding block, the plate recognition module being electrically connected to the first industrial camera and the second industrial camera.

[0080] The board material recognition module includes an image information receiving unit, a size feature recognition unit, and a feedback information output unit. The image information receiving unit is used to receive bottom and side image information of the board material to be rolled from the first industrial camera and the second industrial camera. The size feature recognition unit is used to extract the length, width, and thickness feature information of the board material to be rolled from the image information in the image information receiving unit, and record them as l, w, and h, and determine the placement position of the board material to be rolled. The feedback information output unit is used to output feedback control commands to the adjustment prompt module according to the feature information.

[0081] Furthermore, by setting up a board material recognition module, before using the board rolling machine to perform the board rolling operation, the image information of the board material to be rolled is collected, and the length, width, and thickness feature information of the board material to be rolled are extracted and recorded as l, w, and h. The placement position of the board material to be rolled is determined, so that the corresponding control command can be sent to the adjustment prompt module according to the relevant information of the board material to be rolled, thereby achieving the purpose of assisting boards of different sizes to be rolled into the board rolling machine and detecting boards of different sizes.

[0082] Please see Figure 1 , Figure 2 and Figure 6An embodiment of the present invention provides a three-roll linkage adjustable CNC plate rolling machine, including an auxiliary frame installed on the top of the base plate, the auxiliary frame being located on the right side of the rolling roller support frame, and an auxiliary plate feeding module being located in front of the auxiliary frame. A fixed roller is installed through the back of the auxiliary frame, and the fixed roller is used to provide support for the plate to be rolled.

[0083] The auxiliary plate loading module includes a sliding block, an electric push rod, and an auxiliary roller. The bottom of the sliding block is slidably connected to the top of the base plate, and the back of the sliding block is slidably connected to the front of the auxiliary frame. An electric push rod is mounted on the top of the sliding block, and a fixed block is mounted on the output end of the electric push rod. The two ends of the auxiliary roller pass through the front and back of two sets of fixed blocks, respectively. An auxiliary push frame is mounted on the top of the sliding block and is located to the right of the auxiliary roller. A servo motor is mounted on the top of the base plate and is located in front of the auxiliary frame. A lead screw is connected to the output end of the servo motor and passes through the outer wall of the sliding block.

[0084] Furthermore, by setting up an auxiliary plate feeding module, the sheet material to be rolled is placed above the fixed roller. After the sheet material recognition module identifies the sheet material information, the servo motor drives the lead screw to rotate, causing the auxiliary plate feeding module to move the auxiliary push frame to the left, so that it fits against the right side of the sheet material to be rolled. The electric push rod receives the lifting and adjusting control command output by the adjustment prompt module, and drives the auxiliary roller to move downward, so that it fits against the top of the sheet material of different thicknesses. The sliding block continues to move to the right, pushing the sheet material to the right, thus achieving the purpose of assisting sheet materials of different sizes to enter the plate rolling machine and reducing labor costs.

[0085] Please see Figure 1 , Figure 3 and Figure 6 The present invention provides an embodiment of a three-roll linkage adjustable CNC plate rolling machine, wherein the adjustment prompt module includes an insulation detection ring position adjustment unit, an auxiliary roller position adjustment unit and a rolled plate prompt unit. The auxiliary roller position adjustment unit is used to send a lifting adjustment control command to the electric push rod according to the feedback control command output by the feedback information output unit.

[0086] An electromagnet is installed on the inner wall of the insulation detection ring, and the electromagnet is slidably connected to the outer wall of the hollow rod. The outer wall of the hollow rod is marked with scale lines. A storage battery is installed inside the insulation detection ring, and a control switch is installed on the top of the storage battery. The storage battery, electromagnet and control switch form a closed loop. The insulation detection ring position adjustment unit is used to receive feedback control commands from feedback information output and send loop on / off commands to the control switch.

[0087] Furthermore, the adjustment prompt module receives feedback control commands from the board material recognition module and sends lifting control commands to the electric push rod in the auxiliary board loading module to adjust the position of the auxiliary rollers, assisting boards of different thicknesses. Based on the board material size and positional characteristics, it sends circuit on / off control commands to the control switch. After disconnecting the circuit, it moves the middle set of insulation detection rings to the straight line where the center of the board material to be rolled is located. The left and right sets of insulation detection rings are symmetrically arranged on both sides of the middle set of insulation detection rings according to the width characteristics of the board material to be rolled, and s < w / 2.

[0088] Where s is the distance between two adjacent sets of insulating detection rings along the outer wall of the hollow rod, and w is the width characteristic information of the sheet material to be rolled; after adjustment, the control switch is closed to fix the insulating detection rings, so as to realize the purpose of detecting rolled sheet materials of different sizes and placement positions and improve detection accuracy.

[0089] Working Principle: The sheet material to be rolled is placed on top of the fixed roller. Images of the sheet material are captured by the first and second industrial cameras, respectively, and the image information is transmitted to the sheet material recognition module for identification of sheet material size features and placement position determination. Control commands are then output to the adjustment prompt module. Based on the control commands output by the feedback information output unit, the adjustment prompt module adjusts the position of the auxiliary roller and the installation position of the insulation detection ring. The drive motor starts, and through the reducer, gear two, and gear one, it drives the lower rolling roller of the plate rolling machine to rotate. The servo motor starts, driving the sliding block to move, adjusting the auxiliary plate to push the sheet material to be rolled. With the assistance of the fixed roller and the auxiliary roller, it enters the space between the upper and lower rolling rollers of the plate rolling machine for rolling operation. After rolling, the inner wall curvature radius of the sheet material is detected by the plate rolling detection unit, and the detection result is transmitted to the CNC table for comparison with the standard value of the curvature radius. The comparison result is output to the adjustment prompt module, which determines whether to issue a prompt through the plate rolling prompt unit based on the comparison result. This reduces labor costs, improves loading and detection efficiency, and enhances the accuracy of plate rolling detection.

[0090] It will be apparent to those skilled in the art that the present 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 its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A three-roll linkage adjustable CNC plate rolling machine, characterized in that: It includes a base plate (1), a board identification module (20), an auxiliary board mounting module, a roll detection module (3), and an adjustment prompt module (21). A CNC table (4) is installed on the top of the base plate (1), a roller support frame (2) is installed on the top of the base plate (1), and the roller support frame (2) is located behind the CNC table (4). A plate detection module (3) is provided on the front of the roller support frame (2), an adjustment prompt module (21) is installed on the top of the roller support frame (2), an auxiliary plate loading module is provided on the top of the base plate (1), and the auxiliary plate loading module is located on the right side of the roller support frame (2). A plate identification module (20) is provided on the front of the auxiliary plate loading module. The adjustment prompt module (21) is wirelessly connected to the plate identification module (20), the auxiliary loading module, the plate detection module (3), and the CNC table (4). The board identification module (20) is used to identify and locate the size and position information of the board to be rolled, and output feedback control instructions according to the feature information. The auxiliary board module assists the board to be rolled to move and pushes the board to be rolled into the rolling machine for rolling operation. The rolling detection module (3) is used to detect the size of the rolled board after the rolling operation and output the detection result. The adjustment prompt module (21) is used to adjust the position of the auxiliary board module according to the feedback control instructions output by the board identification module (20) to assist the movement of boards of different sizes. The CNC table (4) is used to output the comparison result to the adjustment prompt module (21) after comparison according to the detection result output by the rolling detection module (3). The adjustment prompt module (21) prompts the qualified rolled board according to the comparison result output by the CNC table (4). The roll plate detection module (3) includes a coordinate system establishment unit. The inner wall of the roll support frame (2) is slidably connected to an adjustment block (5). A hollow rod (6) is fixedly installed on the back of the adjustment block (5). Three sets of insulating detection rings (7) are sleeved on the outer wall of the hollow rod (6). Three sets of laser ranging sensors (8) are installed at equal intervals on the outer wall of each set of insulating detection rings (7). The coordinate system establishment unit establishes three sets of plane rectangular coordinate systems with the center of the insulation detection ring (7) and the plane where the laser distance sensor (8) is located on the outer wall of the insulation detection ring (7). The laser distance sensor (8) detects the straight distance from the measured point to the inner wall of the rolled plate in the same plane. Then, the distance data is converted into coordinate data by the data receiving and conversion unit. The circumference equation calculation unit calculates the circumference equation of the circle where the measured point is located based on the coordinate data. The rolled plate analysis unit obtains the radius of curvature of the inner wall of the cross section of the rolled plate in the plane rectangular coordinate system through the circumference equation. Then, the radius of curvature detection result is transmitted to the CNC table (4).

2. The three-roll linkage-adjustable numerical control veneer cutting machine according to claim 1, characterized in that: The back of the adjusting block (5) is penetrated by the upper winding roller (24), and the hollow rod (6) is located above the upper winding roller (24), and the laser range sensor (8) is electrically connected to the rolling plate detection module (3); The coil detection module (3) includes a data receiving and conversion unit, a circumference equation calculation unit, and a post-coil plate analysis unit; The coordinate system establishment unit is used to establish a Cartesian coordinate system in the plane M where the center of each set of insulation detection rings (7) and the three sets of laser ranging sensors (8) on the outer wall of the insulation detection rings (7) are located, with the center of each set of insulation detection rings (7) as the origin. The vertical line passing through the center of the circle in the plane M is recorded as the vertical axis, and the horizontal line passing through the center of the circle in the plane M is recorded as the horizontal axis. The position coordinates Ai of the laser ranging sensor (8) are determined, Ai∈{(pi,qi)|i=1,2,3}. Where i is the serial number of the laser rangefinder (8), p is the abscissa of the laser rangefinder (8) in the Cartesian coordinate system, and q is the ordinate of the laser rangefinder (8) in the Cartesian coordinate system. The data receiving and conversion unit is used to receive the distance signal measured by the laser rangefinder (8), and convert the distance signal into the coordinate signal (xi, yi) of the measured point on the inner wall of the roll plate through a conversion algorithm, and determine the position of the measured point in the plane rectangular coordinate system. The conversion algorithm is as follows: xi² + yi² = (di + r)², (xi - pi)² + (yi - qi)² = di² Where r is the outer radius of the insulation detection ring (7), d is the straight distance between the laser range sensor (8) and the corresponding measured point on the inner wall of the roll plate, x is the abscissa of the measured point in the plane rectangular coordinate system, and y is the ordinate of the measured point in the plane rectangular coordinate system. The circular equation calculation unit is used to calculate the coordinate signal (xi, yi) of the measured point on the inner wall of the roll plate, using (xi-a)² + (yi-b)² = R². Calculate the equation of the circle formed by the measured points in plane M, and obtain a, b, and R. Where a is the x-coordinate of the center of the circle formed by the measured points, b is the y-coordinate of the center of the circle formed by the measured points, and R is the radius of the circle. The post-rolling sheet analysis unit is used to receive the circle equation calculation results output by the circle equation calculation unit. According to the radius of curvature calculation formula: R=1 / Ke, it analyzes and calculates the radius of curvature of the inner wall of the post-rolling sheet, which is denoted as Kf, and Kf=Ke, where Ke is the radius of curvature of the circle formed by the measured point, and transmits the detection results to the CNC table (4).

3. The three-roll linkage adjustable CNC plate rolling machine according to claim 2, characterized in that: An auxiliary frame (9) is installed on the top of the base plate (1), and the auxiliary frame (9) is located on the right side of the roll support frame (2). The auxiliary plate loading module is located in front of the auxiliary frame (9). A fixed roller (10) is installed through the back of the auxiliary frame (9). The fixed roller (10) is used to provide support for the material to be rolled. The auxiliary plate loading module includes a sliding block (11), an electric push rod (12), and an auxiliary roller (14). The bottom of the sliding block (11) is slidably connected to the top of the base plate (1), and the back of the sliding block (11) is slidably connected to the front of the auxiliary frame (9). The top of the sliding block (11) is equipped with an auxiliary roller (14). An electric push rod (12) is installed, and a fixed block (13) is installed at the output end of the electric push rod (12). The two ends of the auxiliary roller (14) pass through the front and back of the two sets of fixed blocks (13) respectively. An auxiliary push frame (15) is installed on the top of the sliding block (11), and the auxiliary push frame (15) is located on the right side of the auxiliary roller (14). A servo motor (16) is installed on the top of the base plate (1), and the servo motor (16) is located in front of the auxiliary frame (9). The output end of the servo motor (16) is connected to a lead screw (17), and the lead screw (17) passes through the outer wall of the sliding block (11).

4. The three-roll linkage adjustable CNC plate rolling machine according to claim 3, characterized in that: The top of the base plate (1) is equipped with a first industrial camera (18), which is located below the fixed roller (10) and is used to collect the bottom image of the board to be rolled. The inner wall of the auxiliary push frame (15) is equipped with a second industrial camera (19) for collecting the side image of the board to be rolled. The board recognition module (20) is electrically connected to the first industrial camera (18) and the second industrial camera (19). The board material recognition module (20) includes an image information receiving unit, a size feature recognition unit, and a feedback information output unit. The image information receiving unit is used to receive bottom and side image information of the board material to be rolled from the first industrial camera (18) and the second industrial camera (19). The size feature recognition unit is used to extract the length, width, and thickness feature information of the board material to be rolled from the image information in the image information receiving unit and record them as l, w, and h, and determine the placement position of the board material to be rolled. The feedback information output unit is used to output feedback control commands to the adjustment prompt module (21) according to the feature information.

5. A three-roll linkage adjustable CNC plate rolling machine according to claim 4, characterized in that: The adjustment prompt module (21) includes an insulation detection ring (7) position adjustment unit, an auxiliary roller (14) position adjustment unit and a rolled plate prompt unit. The auxiliary roller (14) position adjustment unit is used to send lifting adjustment control commands to the electric push rod (12) according to the feedback control commands output by the feedback information output unit. An electromagnet (22) is provided on the inner wall of the insulation detection ring (7), and the electromagnet (22) is slidably connected to the outer wall of the hollow rod (6). The outer wall of the hollow rod (6) is marked with scale lines. A storage battery (23) is provided inside the insulation detection ring (7). A control switch is provided on the top of the storage battery (23). The storage battery (23), the electromagnet (22) and the control switch form a closed loop. The position adjustment unit of the insulation detection ring (7) is used to receive feedback control commands output by feedback information and send loop on / off commands to the control switch.

6. A three-roll linkage adjustable CNC plate rolling machine according to claim 5, characterized in that: The CNC console (4) includes a standard value input unit, a roll-up plate detection result receiving unit, a data comparison unit, and a comparison result output unit. The standard value input unit is used to set the standard value of the inner wall curvature radius of the roll-up plate, denoted as Kg. The roll-up plate detection result receiving unit is used to receive the detection value of the inner wall curvature radius Kf of the roll-up plate. The data comparison unit is used to compare the standard value of the inner wall curvature radius of the roll-up plate with the detection value of the inner wall curvature radius of the roll-up plate. When the comparison result is Kf > Kg, the comparison result output unit outputs a "coil not up to standard" comparison result to the coiled sheet prompt unit. When the comparison result is Kf=Kg, the comparison result output unit outputs the comparison result "coiled plate meets the standard" to the coiled plate prompt unit.

7. A three-roll linkage adjustable CNC plate rolling machine according to claim 6, characterized in that: The post-roll sheet material prompting unit includes one or more of a voice broadcaster or an audible and visual alarm. The post-roll sheet material prompting unit determines whether to prompt the post-roll sheet material detection result based on the output result of the data comparison unit.

8. A three-roll linkage adjustable CNC plate rolling machine according to claim 1, characterized in that: The back of the roller support frame (2) is through-mounted with a lower roller (26). The outer wall of the lower roller (26) is fitted with a gear (27), and the gear (27) is located in front of the roller support frame (2). The top of the base plate (1) is fitted with a drive motor (28), and the drive motor (28) is electrically connected to the CNC table (4). The output end of the drive motor (28) is connected to a reducer (29). The outer wall of the output end of the reducer (29) is fitted with a gear (30), and the gear (30) meshes with the gear (27). The top of the roller support frame (2) is fitted with a hydraulic push rod (25), and the output end of the hydraulic push rod (25) is connected to the top of the adjustment block (5). The hydraulic push rod (25) is located to the right of the adjustment prompt module (21).

9. A method of using a three-roll linkage adjustable CNC plate rolling machine, applicable to the three-roll linkage adjustable CNC plate rolling machine as described in any one of claims 1-8, characterized in that, The operating method of this three-roll adjustable CNC plate rolling machine is as follows: S1. Place the board to be rolled on top of the fixed roller (10), and collect images of the bottom and side of the board to be rolled by the first industrial camera (18) and the second industrial camera (19) respectively. Transmit the graphic information to the board recognition module (20) to identify the board size feature information and determine the placement position, and output control commands to the adjustment prompt module (21). S2, The adjustment prompt module (21) sends a lifting adjustment control command to the electric push rod (12) according to the thickness characteristic information of the sheet material to be rolled output by the size recognition unit and the control command output by the feedback information output unit, and adjusts the position of the auxiliary roller (14). According to the length, width and placement position characteristic information of the sheet material to be rolled, it sends a control command to the insulation detection ring (7) position adjustment unit to adjust the installation position of the insulation detection ring (7). S3. The drive motor (28) starts and drives the lower rolling roller (26) of the plate rolling machine to rotate through the reducer (29), gear two (30) and gear one (27). The servo motor (16) starts and drives the sliding block (11) to move, and adjusts the auxiliary plate to push the plate to be rolled to move. With the assistance of the fixed roller (10) and the auxiliary roller (14), it enters the upper rolling roller (24) and the lower rolling roller (26) of the plate rolling machine to perform the rolling operation. S4. The coordinate system establishment unit establishes three sets of plane rectangular coordinate systems with the center of the insulation detection ring (7) and the plane where the laser distance sensor (8) is located on the outer wall of the insulation detection ring (7). The laser distance sensor (8) detects the straight distance from the measured point to the inner wall of the rolled plate in the same plane. Then, the data receiving and conversion unit converts the distance data into coordinate data. The circumference equation calculation unit calculates the circumference equation of the circle where the measured point is located based on the coordinate data. The rolled plate analysis unit obtains the radius of curvature of the inner wall of the cross section of the rolled plate in the plane rectangular coordinate system through the circumference equation. Then, the radius of curvature detection result is transmitted to the CNC table (4). S5. The CNC table (4) compares the radius of curvature detection result with the radius of curvature standard value through the data comparison unit, and the comparison result is transmitted to the adjustment prompt module (21) through the comparison result output unit.

10. The method of using a three-roll linkage adjustable CNC plate rolling machine according to claim 9, characterized in that, Step S2 further includes the following steps: S21. The insulation detection ring (7) position adjustment unit receives the length, width and placement position information of the board to be rolled from the feedback information output unit, sends a disconnect command to the control switch, and adjusts the insulation detection ring (7) to the corresponding position in conjunction with the scale marking on the outer wall of the hollow rod (6). Then it sends a closing command to the control switch, and the battery (23) supplies power to the electromagnet (22) to fix the insulation detection ring (7). Step S5 further includes the following steps: S51. The post-rolling board prompting unit receives the comparison result output by the comparison result output unit. When the input comparison result is "rolling board not up to standard", the post-rolling board prompting unit does not make a prompt, and the rolling machine continues to perform the rolling operation. When the input comparison result is "rolling board up to standard", the post-rolling board prompting unit issues a prompt, the drive motor (28) is turned off, and the rolling machine stops the rolling operation.

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