An automatic cylindrical body alignment device based on in-machine measurement

Abstract

This invention discloses an automatic cylindrical body straightening device based on in-machine measurement, comprising a rotating mechanism and a straightening mechanism mounted on a worktable. The straightening mechanism includes a main column, two supporting columns, and at least one set of straightening components. It also includes a data recognition controller mounted on the worktable, comprising an automatic measurement system and a straightening software system. The straightening software system receives a measurement model of the cylindrical workpiece measured by the automatic measurement system and generates a theoretical correction model of the cylindrical workpiece based on the measurement model. The straightening software system sends the straightening data to the rotating mechanism and the straightening components. This automatic cylindrical body straightening device based on in-machine measurement reduces the number of workers involved, lowers their labor intensity, improves workpiece straightening efficiency, increases production capacity, and enables high-precision detection of the roundness and straightness of the cylinder.

Description

Technical Field

[0001] This invention belongs to the field of calibration equipment technology, and in particular to an automatic calibration device for cylindrical bodies based on in-machine measurement. Background Technology

[0002] The cylindrical body is assembled by welding one or more arc-shaped wall panels. During the welding process, it deforms due to heat. After welding, the release of welding stress causes the cylindrical body to continue to shrink and deform.

[0003] Existing welding straightening equipment is mostly a leveling device for welding deformation of steel plates, which uses pressure rollers for repeated leveling. However, existing cylindrical body straightening generally combines straightening fixtures with manual operation, requiring the participation of multiple workers. As a result, existing cylindrical body straightening equipment has a low degree of automation and poor straightening accuracy. To address the problems of existing technology, this invention provides an automatic cylindrical body straightening device based on in-machine measurement. By introducing an automatic detection system, it achieves high-precision detection of the roundness and straightness of the cylinder, improving the automation of straightening. At the same time, it works with the straightening mechanism to ensure that the straightened part has high roundness and straightness. Summary of the Invention

[0004] Purpose of the invention: To provide an automatic cylindrical body straightening device based on in-machine measurement, which only requires human intervention during the loading and unloading of workpieces, while the rest of the process is completed automatically. On the one hand, it reduces the number of workers involved, and on the other hand, it reduces the labor intensity of workers. In addition, compared with the slow straightening process of traditional straightening machines, the automatic straightening device can improve the workpiece straightening efficiency and increase production capacity.

[0005] Technical solution:

[0006] An automatic cylindrical workpiece straightening device based on in-machine measurement includes a rotating mechanism and a straightening mechanism mounted on a worktable. The rotating mechanism drives the cylindrical workpiece to rotate around a vertical axis. The straightening mechanism, mounted on the worktable, performs a straightening operation on the cylindrical workpiece placed on the rotating mechanism. The straightening mechanism includes a main column, two supporting columns, and at least one set of straightening components. The main column and the two supporting columns are vertically, parallel, and spaced apart on the worktable. The two supporting columns are located inside the cylindrical workpiece, and the main column is located outside the cylindrical workpiece.

[0007] At least one set of the alignment components is installed on the main column. The alignment component includes a horizontally movable telescopic alignment member and a position adjustment member connected to the telescopic alignment member. The position adjustment member is used to drive the telescopic alignment member to move up and down along the height direction of the main column. The telescopic end of the telescopic alignment member in the alignment component faces the area of ​​the corresponding cylindrical workpiece between the two support columns.

[0008] The top of the main column and the two supporting columns are all provided with locking devices. The locking devices at the top of the main column and the two supporting columns cooperate with each other to achieve a stable connection between the top of the main column and the top of the two supporting columns. The locking devices are connected to the top of the main column and the supporting columns.

[0009] The system also includes a data recognition controller mounted on the workbench. The data recognition controller comprises an automatic measurement system and a calibration software system. The automatic measurement system measures the straightness and roundness of the surface of the cylindrical workpiece. The automatic measurement system is electrically connected to the calibration software system, which is electrically connected to the rotating mechanism, the calibration component, and the locking component. The calibration software system receives the measurement model of the cylindrical workpiece measured by the automatic measurement system and generates a theoretical calibration model of the cylindrical workpiece based on the measurement model. By comparing the measurement model and the theoretical calibration model, calibration data of the cylindrical workpiece is obtained. The calibration software system sends the calibration data to the rotating mechanism and the calibration component. The rotating mechanism rotates the cylindrical workpiece to be calibrated to the designated area. The position adjustment component drives the telescopic calibration component to move up and down along the height direction of the main column, causing the telescopic calibration component to move to the position of the cylindrical workpiece to be calibrated and extend to perform the calibration operation on the cylindrical workpiece.

[0010] In a further embodiment, two sets of the alignment components are provided on the main column, and the two alignment components are disposed opposite to each other on the main column along the height direction of the main column.

[0011] In a further embodiment, two of the supporting columns are disposed on one side of the main column, and the main column is disposed between the two supporting columns.

[0012] The support column includes a fixed cylinder and several tapered roller bearings. The tapered roller bearings are rotatably mounted on the fixed cylinder along the height direction of the fixed cylinder, and bearing shims are provided between two adjacent tapered roller bearings.

[0013] In a further embodiment, the alignment mechanism further includes a displacement sensor for detecting the extension amount of the telescopic alignment member;

[0014] The telescopic alignment component includes an alignment cylinder, and the position adjustment component includes a telescopic cylinder. The fixed end of the telescopic cylinder is located on the main column, and the telescopic end is connected to the alignment cylinder. The telescopic end of the alignment cylinder is connected to the alignment head, and the fixed end is slidably connected to the main column through a guide assembly.

[0015] In a further embodiment, the guide assembly includes a guide key installed at the fixed end of the alignment cylinder, the guide key being slidably connected in a guide groove, the guide groove being formed on the main column along the height direction of the main column.

[0016] In a further embodiment, the locking member at the top of the main column is a first locking mechanism, and the locking member at the top of the two supporting columns is a second locking mechanism. The first locking mechanism is located on a locking platform, which is fixed to the top of the main column. The second locking mechanism is located on a support platform, which is fixed to the top of the two fixed cylinders.

[0017] The first locking mechanism includes a first electric cylinder and a locking seat. The telescopic end of the first electric cylinder is provided with a locking pin, and the locking seat is provided with a hole for the locking pin to be inserted.

[0018] The second locking mechanism includes a second electric cylinder, and a T-shaped locking block is fixed to the telescopic end of the second electric cylinder. The locking block is located between the locking pin and the locking member.

[0019] The locking block includes a connecting rod and a limiting block fixed to one end of the connecting rod, and the other end of the connecting rod is fixedly connected to the telescopic end of the second electric cylinder.

[0020] In a further embodiment, the data recognition controller further includes a hydraulic control system electrically connected to the calibration software system, the hydraulic control system being used to control the operation of the calibration component.

[0021] In a further embodiment, the automatic measurement system includes a 3D industrial camera, an automatic measurement software system, and a camera column. The 3D industrial camera is mounted on the camera column, which is located on the worktable. The automatic measurement software system is electrically connected to the calibration software system.

[0022] In a further embodiment, the rotating mechanism includes a plurality of rotating support seats and a rotating assembly. The plurality of rotating support seats are used to support the bottom of the cylindrical workpiece, and the rotating assembly drives the cylindrical workpiece placed on the rotating support seats to rotate about a vertical axis.

[0023] In a further embodiment, the workbench includes a tabletop and a frame supported beneath the tabletop.

[0024] The beneficial effects of this invention are: This invention reduces the number of workers involved and lowers the labor intensity of workers. Compared with the slow straightening process of traditional straightening machines, automatic straightening equipment can improve the efficiency of workpiece straightening and increase production capacity. By introducing an automatic measurement system, the roundness and straightness of the cylinder can be detected with high precision and used as the basis for judging the work of the straightening components, thereby enabling the straightened parts to have high roundness and straightness.

[0025] (1) The support column and the main column are set on the straightening workbench. The support column can support the cylindrical workpiece on the inside of the cylindrical workpiece, while the main column is equipped with a straightening component that can perform straightening operation on the cylindrical workpiece. An automatic locking structure is also adopted between the main column and the support column, which can automatically open and lock, making the stability of the main column and the support column better during the straightening operation. The locking structure has a good service life and maintainability.

[0026] (2) The automatic measurement system can work with the rotating mechanism to perform comprehensive identification and detection of the surface of the cylindrical workpiece, thereby determining the position that needs to be corrected. A correction component is provided on the main column. The correction component can be adjusted according to the measurement data of the automatic measurement system to complete the correction operation of the cylindrical workpiece. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of an automatic cylindrical body alignment device based on in-machine measurement according to the present invention.

[0028] Figure 2 This is a three-dimensional structural diagram of the workbench of the present invention.

[0029] Figure 3 This is a three-dimensional structural diagram of the rotating mechanism of the present invention.

[0030] Figure 4 This is a schematic diagram of the main structure of the calibration station of the present invention.

[0031] Figure 5 This is a three-dimensional structural diagram of the calibration station of the present invention.

[0032] Figure 6 This is a top view of the locking mechanism of the present invention.

[0033] Figure 7 This is a schematic diagram of the hydraulic system of the present invention.

[0034] Figure 8 This is a schematic diagram illustrating the application of the automatic measurement system of the present invention.

[0035] The attached figures are labeled as follows: workbench 1, table surface 1-1, frame 1-2, rotating mechanism 2, rotating support 2-1, rotating assembly 2-2, alignment mechanism 3, support column 3-1, main column 3-2, alignment cylinder 3-3, telescopic cylinder 3-4, displacement sensor 3-5, fixed plate 3-6, locking component 3-7, first electric cylinder 3-7-1, second electric cylinder 3-7-2, guide key 3-8, alignment software system 3-9, hydraulic system 4, automatic measurement system 5, 3D industrial camera 5-1, automatic measurement software system 5-2, camera column 5-3. Detailed Implementation

[0036] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0037] The present invention will be further described in detail below with reference to the accompanying drawings.

[0038] Reference Figure 1-8This invention discloses an automatic cylindrical body straightening device based on in-machine measurement, comprising a rotating mechanism 2 and a straightening mechanism 3 mounted on a worktable 1. The rotating mechanism 2 drives the cylindrical workpiece to rotate around a vertical axis. The straightening mechanism 3, mounted on the worktable 1, performs straightening operations on the cylindrical workpiece placed on the rotating mechanism 2. The straightening mechanism 3 includes a main column 3-2, two supporting columns 3-1, and at least one set of straightening components. The main column 3-2 and the two supporting columns 3-1 are vertically, parallel, and spaced apart on the worktable 1. The two supporting columns 3-1 are located inside the cylindrical workpiece, and the main column 3-2 is located outside the cylindrical workpiece. At least one set of straightening components is mounted on the main column 3-2. Each straightening component includes a horizontally movable telescopic straightening member and a position adjusting member connected to the telescopic straightening member. The position adjusting member drives the telescopic straightening member to move up and down along the height direction of the main column 3-2. The telescopic end of the component faces the area of ​​the cylindrical workpiece between the two supporting columns 3-1. When the rotating mechanism 2 rotates the cylindrical workpiece with a protruding defect to this area, the straightening component completes the straightening operation by squeezing the protruding defect. When the cylindrical workpiece has a concave defect, the rotating mechanism 2 first rotates the edge of the concave defect position of the cylindrical workpiece to abut against the supporting column 3-1. The straightening component then applies pressure to this area, that is, between the two supporting columns 3-1, to reset the concave position. Operation; The top of the main column 3-2 and the two supporting columns 3-1 are all provided with locking parts 3-7. The locking parts 3-7 on the top of the main column 3-2 and the two supporting columns 3-1 cooperate with each other to achieve a stable connection between the top of the main column 3-2 and the top of the two supporting columns 3-1. After the locking parts 3-7 are connected to the top of the main column 3-2 and the supporting columns 3-1, the supporting columns 3-1 are connected to the top of the main column 3-2 when the workpiece is shaped, which reduces the displacement and deformation of the supporting columns 3-1 during the shaping process.It also includes a data recognition controller mounted on the workbench 1. The data recognition controller includes an automatic measurement system 5 and a calibration software system 3-9. The automatic measurement system 5 is used to measure the straightness and roundness of the surface of the cylindrical workpiece. The automatic measurement system 5 is electrically connected to the calibration software system 3-9. The calibration software system 3-9 is electrically connected to the rotating mechanism 2, the calibration assembly, and the locking member 3-7. The locking member 3-7 performs the locking operation at the top of the main column 3-2 and the two supporting columns 3-1. The calibration software system 3-9... -9 sends a locking signal to the rotating mechanism 2 and the alignment component. The locking signal is the start signal for the alignment component and the rotating mechanism 2. The alignment software system 3-9 receives the measurement model of the cylindrical workpiece measured by the automatic measurement system 5, and generates a theoretical correction model of the cylindrical workpiece based on the measurement model. By comparing the measurement model and the theoretical correction model, the alignment data of the cylindrical workpiece is obtained. The alignment software system 3-9 sends the alignment data to the rotating mechanism 2 and the alignment component. The rotating mechanism 2 rotates the cylindrical workpiece to the position to be aligned. Upon reaching the designated area, the position adjustment component drives the telescopic correction component to move up and down along the height direction of the main column 3-2, causing the telescopic correction component to move to the position of the cylindrical workpiece to be corrected and extend to perform a correction operation on the cylindrical workpiece. The correction software system 3-9 is then activated. Based on the analysis of the position to be corrected and the degree of deformation by the correction software system 3-9, the rotation mechanism 2 is controlled to quickly rotate the position of the workpiece to be corrected to the position of the telescopic correction component corresponding to the telescopic ends of the two supporting columns 3-1. Priority is given to correcting the position with the greatest deformation. The correction is achieved through the Z-axis of the three-dimensional point coordinate system, i.e., the telescopic correction. The telescopic adjustment component's extension direction information is used to control its vertical movement along the main column 3-2 to the required adjustment position. Using the X-axis of the three-dimensional coordinate system (i.e., the extension direction information of the position adjustment component and roundness and straightness error information), the required extension displacement of the telescopic adjustment component is given and fed back to the adjustment software system 3-9. The hydraulic control system controls the extension of the telescopic adjustment component, and the displacement sensor 3-5 detects the current extension amount to complete the adjustment. This process is repeated until the entire cylindrical surface is adjusted. During the adjustment stage, the rotation angle of the telescopic adjustment component is approximately 20° each time, depending on the adjustment area.

[0039] Two sets of the aforementioned alignment components are provided on the main column 3-2. The two alignment components are arranged opposite each other on the main column 3-2 along the height direction of the main column 3-2. The arrangement of the two alignment components can improve the alignment efficiency and coordinate with the movement stroke of the hydraulic cylinder and the height of the workpiece being measured.

[0040] Two support columns 3-1 are located on one side of the main column 3-2, and the main column 3-2 is correspondingly located between the two support columns 3-1. Each support column 3-1 includes a fixed cylinder and several tapered roller bearings. The tapered roller bearings are rotatably mounted on the fixed cylinder along its height direction. Bearing washers are provided between two adjacent tapered roller bearings. The bottom end of the fixed cylinder is connected to the worktable 1, and the top end is provided with a locking element 3-7. When the cylindrical workpiece is placed on the rotating support seat 2-1 and located outside the support column 3-1, the inner side of the cylindrical workpiece abuts against the tapered roller bearings. When the cylindrical workpiece rotates under the drive of the rotating assembly 2-2, it is in rolling connection with the tapered roller bearings.

[0041] The alignment mechanism 3 further includes a displacement sensor 3-5, which is used to detect the extension amount of the telescopic alignment component; the telescopic alignment component includes an alignment cylinder 3-3, and the position adjustment component includes a telescopic cylinder 3-4. The fixed end of the telescopic cylinder 3-4 is located on the main column 3-2, and the telescopic end is connected to the alignment cylinder 3-3. The telescopic end of the alignment cylinder 3-3 is connected to the alignment head, and the fixed end is slidably connected to the main column 3-2 through a guide assembly. The displacement sensor 3-5 is located on the alignment cylinder 3-3 to detect the extension amount of the alignment cylinder 3-3. The lower end of column 3-2 is fixed to workbench 1 via fixed plate 3-6, and the upper end is connected to two support columns 3-1 via locking piece 3-7. The main column 3-2 is the support carrier for the alignment cylinder 3-3. The alignment cylinder 3-3 is connected to the main column 3-2 via a hub structure. At the same time, a telescopic cylinder 3-4 is installed at each of the upper and lower ends of the main column 3-2. One end of the telescopic cylinder 3-4 is connected to the main column 3-2, and the other end is connected to the alignment cylinder 3-3. The telescopic cylinder 3-4 can adjust the vertical position of the alignment cylinder 3-3 on the main column 3-2 by extending and retracting along the height direction of the main column 3-2.

[0042] The guiding assembly includes a guide key 3-8 installed at the fixed end of the straightening cylinder 3-3. The guide key 3-8 is slidably connected in a guide groove, which is opened on the main column 3-2 along the height direction of the main column 3-2. In order to prevent the straightening cylinder from deflecting during the lifting and lowering process, which would result in a component force that is not conducive to the straightening of the cylindrical body, a guide groove is opened on the main column 3-2, and a guide key 3-8 is installed on the straightening cylinder 3-3. The cooperation between the guide key 3-8 and the guide groove can play an anti-rotation role during the lifting and lowering process of the straightening cylinder 3-3.

[0043] The locking member 3-7 located at the top of the main column 3-2 is the first locking mechanism, and the locking members 3-7 located at the tops of the two supporting columns 3-1 are the second locking mechanisms. The first locking mechanism is located on a locking platform, which is fixed to the top of the main column 3-2. The second locking mechanism is located on a support platform, which is fixed to the tops of the two fixed columns. The first locking mechanism includes a first electric cylinder 3-7-1 and a locking seat. The telescopic end of the first electric cylinder 3-7-1 is provided with a locking pin, and the locking seat has an opening... The device includes a socket for inserting the locking pin; the second locking mechanism includes a second electric cylinder 3-7-2, the telescopic end of which is fixed with a T-shaped locking block, the locking block being located between the locking pin and the locking member 3-7; the locking block includes a connecting rod and a limiting block fixed to one end of the connecting rod, the other end of which is fixedly connected to the telescopic end of the second electric cylinder 3-7-2. Before loading, the first electric cylinder 3-7-1 retracts, causing the locking pin to be pulled out of the socket in the locking seat, thus... Once the locking block is no longer restricted by the locking pin, the second electric cylinder 3-7-2 is retracted to the "0" position. In the "0" position, after the second electric cylinder 3-7-2 is retracted, the side of the locking block corresponding to the support column 3-1 will not protrude from the support column 3-1 to prevent obstructing workpiece loading. The worker operates the cantilever crane to lift the cylindrical workpiece onto the worktable 1, taking care not to touch the second electric cylinder 3-7-2, ensuring the bottom of the cylindrical workpiece rests on the rotating support seat 2-1. The position of the cylindrical workpiece is adjusted using the pre-tightening electric cylinder so that the inner wall of the cylindrical workpiece aligns with the built-in hub. The drive wheel of the motor and the two support columns 3-1 abut against each other; the second electric cylinder 3-7-2 extends so that the locking block is located between the locking pin and the locking seat. The locking pin has a "U" shaped structure. With the extension of the first electric cylinder 3-7-1, the locking pin locks the connecting rod and inserts it into the socket. The connecting rod is locked into the recessed position of the "U" shaped structure, so that the main column 3-2 and the support column 3-1 are locked together. Both ends of the main column 3-2 and the support column 3-1 are constrained and rigidly fixed to prevent the support column 3-1 from collapsing or tilting during the correction.

[0044] The data identification controller also includes a hydraulic control system, which is electrically connected to the calibration software system 3-9. The hydraulic control system controls the operation of the calibration components. The hydraulic system 4 includes a drain plug, a level thermometer, an air filter, a suction filter, a level and temperature sensor, a pressure testing connector, a pressure gauge, a pressure sensor, an oil pump, a coupling, a motor, a check valve, a high-pressure filter, an accumulator, a pilot relief valve, a solenoid valve, a pressure reducing valve, a proportional directional valve, a proportional relief valve, a solenoid directional valve, a stacked hydraulic control check valve, and a stacked hydraulic control throttle valve. The hydraulic system 4 is for calibration... The power source for the components is a hydraulic pump driven by a motor to output high-pressure oil. The output high-pressure oil is delivered to the cylinders through various control valves, driving each component to work normally and complete the calibration process. The system working pressure can be coarsely and finely adjusted, and the pipeline pressure is digitally displayed for easy control of the calibration force. The two calibration cylinders 3-3 can be operated independently, that is, the position of the calibration cylinders 3-3 on the main column 3-2 can be adjusted separately, and the pressure can be controlled independently. The calibration cylinders 3-3 should not rotate during the up and down movement, and can be reliably locked at any position within the range of up and down movement.

[0045] The automatic measurement system 5 includes a 3D industrial camera 5-1, an automatic measurement software system 5-2, and a camera column 5-3. The 3D industrial camera 5-1 is mounted on the camera column 5-3, which is mounted on the worktable 1. The automatic measurement software system 5-2 is electrically connected to the alignment software system 3-9. The measurement system is independent of the alignment system, facing the workpiece directly, and uses the 3D industrial camera 5-1 for measurement. The basic principle is to combine the phase-shift method with the monocular structured light three-dimensional vision measurement method. The 3D industrial camera 5-1 is mounted on the camera column 5-3, which is perpendicular to the worktable 1. When installing the camera column 5-3, the perpendicularity to the worktable 1 must be less than 0.1mm. The straightness of the workpiece is measured by scanning the cylindrical section workpiece vertically with the 3D industrial camera 5-1, and the roundness of the workpiece is measured by rotating the cylindrical section workpiece circumferentially. Based on the measurement accuracy of the 3D industrial camera 5-1 and the installation accuracy of the camera column 5-3 in the measurement system, the accuracy of the measurement system can be less than 0.2mm. The automatic measurement software system 5-2 is started. First, zero-position markers are affixed to the cylindrical workpiece. After the workpiece rotates 360°, the 3D industrial camera 5-1 can measure and inspect the entire outer surface of the workpiece, obtaining the three-dimensional coordinates of any point on the outer contour of the workpiece. Specifically, the automatic measurement software system 5-2 begins by detecting the directly facing measurement area, i.e., the 60-degree arc surface, and then completes the detection within the entire height range of the cylindrical workpiece. This process, through software data processing, yields a section of the arc surface within approximately 60° of the workpiece. The rotating component 2-2 rotates the cylindrical workpiece by 60°, 120°, 180°, 240°, 300°, and 360°. By superimposing these arc surfaces, the entire outer surface of the cylindrical workpiece is measured. This allows for the measurement of the error between the roundness of the cylindrical outer contour and the roundness of the theoretically corrected model workpiece. Simultaneously, through vertical scanning, the straightness error of the cylindrical outer contour can be calculated. When the roundness of the cylindrical surface exceeds 1mm, it needs to be rotated to the point of deviation by the rotating mechanism 2, and then the current height position is calibrated by the calibration component. When the straightness of the busbar exceeds 0.5mm, the height direction can be calibrated by the calibration component. After the current position calibration is completed, the calibration cylinder 3-3 retracts, and the worker can rotate the cylindrical workpiece to be calibrated according to the calibration requirements. The automatic measurement software system 5-2 and the calibration software system 3-9 are repeated until the cylindrical workpiece calibration is completed. The calibration program is then closed, and the worker operates the cantilever crane to lift the calibrated cylindrical workpiece out of the automatic calibration equipment, completing the unloading process and preparing to calibrate the next cylindrical workpiece. In the calibration area, the roundness and straightness of the cylindrical workpiece are simultaneously unqualified. At this time, the roundness is corrected first, and then the straightness is corrected.

[0046] The rotating mechanism 2 includes several rotating support seats 2-1 and a rotating assembly 2-2. The rotating support seats 2-1 support the bottom of the cylindrical workpiece. The rotating assembly 2-2 drives the cylindrical workpiece placed on the rotating support seats 2-1 to rotate around a vertical axis. The rotating assembly 2-2 includes a pre-tensioning electric cylinder and a built-in hub motor. The pre-tensioning electric cylinder drives the built-in hub motor to move until the drive wheel at the output end of the built-in hub motor abuts against the inner wall of the cylindrical workpiece. The drive wheel cooperates with two supporting columns 3-1 to drive the cylindrical workpiece to rotate and rotate the workpiece to a specified position when the hub motor is running. To achieve workpiece stability, when the bottom of the cylindrical workpiece is placed on the rotating support 2-1, the rotating component 2-2 is located inside the cylindrical workpiece. The pre-tightening electric cylinder drives the rotating component 2-2 to move away from the two support columns 3-1. At this time, the bottom of the cylindrical workpiece slides on the rotating support 2-1 until the rotating component 2-2 and the two support columns 3-1 abut against the inner wall of the cylindrical workpiece in a line contact manner. The above three line contact positions are projected onto the worktable 1 in the vertical direction to form a triangular structure. Under the rotational drive of the built-in hub motor, the cylindrical workpiece rotates around the geometric center axis of the cylindrical workpiece.

[0047] The workbench 1 includes a table surface 1-1 and a frame 1-2 supported below the table surface 1-1. The workbench 1 is the main support platform for the cylindrical workpiece being shaped. The table surface 1-1 is designed as a split structure, which is convenient for maintenance and disassembly. The frame 1-2 is welded from channel steel of different lengths.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0049] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. An automatic cylindrical body straightening device based on in-machine measurement, comprising a rotating mechanism and a straightening mechanism mounted on a worktable, wherein the rotating mechanism drives the cylindrical workpiece to rotate around a vertical axis, and the straightening mechanism mounted on the worktable performs a straightening operation on the cylindrical workpiece placed on the rotating mechanism, characterized in that: The alignment mechanism includes a main column, two supporting columns, and at least one set of alignment components. The main column and the two supporting columns are vertically, parallel, and spaced apart on the worktable. The two supporting columns are located inside the cylindrical workpiece, and the main column is located outside the cylindrical workpiece. At least one set of the alignment components is installed on the main column. The alignment component includes a horizontally movable telescopic alignment member and a position adjustment member connected to the telescopic alignment member. The position adjustment member is used to drive the telescopic alignment member to move up and down along the height direction of the main column. The telescopic end of the telescopic alignment member in the alignment component faces the area of ​​the corresponding cylindrical workpiece between the two support columns. The top of the main column and the two supporting columns are all provided with locking devices. The locking devices at the top of the main column and the two supporting columns cooperate with each other to achieve a stable connection between the top of the main column and the top of the two supporting columns. The locking devices are connected to the top of the main column and the supporting columns. The system also includes a data recognition controller mounted on the workbench. The data recognition controller comprises an automatic measurement system and a calibration software system. The automatic measurement system measures the straightness and roundness of the surface of the cylindrical workpiece. The automatic measurement system is electrically connected to the calibration software system, which is electrically connected to the rotating mechanism, the calibration component, and the locking component. The calibration software system receives the measurement model of the cylindrical workpiece measured by the automatic measurement system and generates a theoretical calibration model of the cylindrical workpiece based on the measurement model. By comparing the measurement model and the theoretical calibration model, calibration data of the cylindrical workpiece is obtained. The calibration software system sends the calibration data to the rotating mechanism and the calibration component. The rotating mechanism rotates the cylindrical workpiece to be calibrated to the designated area. The position adjustment component drives the telescopic calibration component to move up and down along the height direction of the main column, causing the telescopic calibration component to move to the position of the cylindrical workpiece to be calibrated and extend to perform the calibration operation on the cylindrical workpiece.

2. The automatic cylindrical body alignment device based on in-machine measurement according to claim 1, characterized in that: Two sets of the alignment components are provided on the main column, and the two alignment components are arranged opposite each other on the main column along the height direction of the main column.

3. The automatic cylindrical body alignment device based on in-machine measurement according to claim 1, characterized in that: The two supporting columns are located on one side of the main column, and the main column is located between the two supporting columns. The support column includes a fixed cylinder and several tapered roller bearings. The tapered roller bearings are rotatably mounted on the fixed cylinder along the height direction of the fixed cylinder, and bearing shims are provided between two adjacent tapered roller bearings.

4. The automatic cylindrical body alignment device based on in-machine measurement according to claim 1, characterized in that: The alignment mechanism also includes a displacement sensor, which is used to detect the extension amount of the telescopic alignment member; The telescopic alignment component includes an alignment cylinder, and the position adjustment component includes a telescopic cylinder. The fixed end of the telescopic cylinder is located on the main column, and the telescopic end is connected to the alignment cylinder. The telescopic end of the alignment cylinder is connected to the alignment head, and the fixed end is slidably connected to the main column through a guide assembly.

5. The automatic cylindrical body alignment device based on in-machine measurement according to claim 4, characterized in that: The guide assembly includes a guide key installed at the fixed end of the alignment cylinder. The guide key is slidably connected in a guide groove, which is formed on the main column along the height direction of the main column.

6. The automatic cylindrical body alignment device based on in-machine measurement according to claim 3, characterized in that: The locking member at the top of the main column is the first locking mechanism, and the locking member at the top of the two supporting columns is the second locking mechanism. The first locking mechanism is located on the locking platform, which is fixed to the top of the main column. The second locking mechanism is located on the support platform, which is fixed to the top of the two fixed cylinders. The first locking mechanism includes a first electric cylinder and a locking seat. The telescopic end of the first electric cylinder is provided with a locking pin, and the locking seat is provided with a hole for the locking pin to be inserted. The second locking mechanism includes a second electric cylinder, and a T-shaped locking block is fixed to the telescopic end of the second electric cylinder. The locking block is located between the locking pin and the locking member. The locking block includes a connecting rod and a limiting block fixed to one end of the connecting rod, and the other end of the connecting rod is fixedly connected to the telescopic end of the second electric cylinder.

7. The automatic cylindrical body alignment device based on in-machine measurement according to claim 1, characterized in that: The data recognition controller also includes a hydraulic control system, which is electrically connected to the calibration software system and is used to control the operation of the calibration component.

8. The automatic cylindrical body alignment device based on in-machine measurement according to claim 1, characterized in that: The automatic measurement system includes a 3D industrial camera, an automatic measurement software system, and a camera column. The 3D industrial camera is mounted on the camera column, which is located on the worktable. The automatic measurement software system is electrically connected to the calibration software system.

9. The automatic cylindrical body alignment device based on in-machine measurement according to claim 1, characterized in that: The rotating mechanism includes several rotating support seats and a rotating assembly. The rotating support seats are used to support the bottom of the cylindrical workpiece, and the rotating assembly drives the cylindrical workpiece placed on the rotating support seats to rotate around a vertical axis.

10. The automatic cylindrical body alignment device based on in-machine measurement according to claim 1, characterized in that: The workbench includes a tabletop and a frame supported beneath the tabletop.

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