CN116511390B - Device and method for rounding and flattening L-shaped flange after ring grinding - Google Patents
Device and method for rounding and flattening L-shaped flange after ring grinding Download PDFInfo
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- CN116511390B CN116511390B CN202310806765.3A CN202310806765A CN116511390B CN 116511390 B CN116511390 B CN 116511390B CN 202310806765 A CN202310806765 A CN 202310806765A CN 116511390 B CN116511390 B CN 116511390B
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Abstract
The invention discloses a device and a method for setting and leveling an L-shaped flange after ring rolling, wherein the device comprises a setting mechanism for radially rolling and setting the L-shaped flange, a leveling mechanism for rolling the axial surface of the L-shaped flange, a bearing mechanism for bearing and rotating the L-shaped flange, a detection mechanism for measuring the diameter and the flatness of the flange, and a remote control room for controlling and processing the data of the detection mechanism; the device and the method can improve the roundness and the flatness of the L-shaped flange after ring grinding, optimize the production process of the L-shaped flange, reduce the manufacturing cost and improve the qualification rate of L-shaped flange products.
Description
Technical Field
The invention relates to the technical field of flange manufacturing, in particular to a rounding and flattening device and method for an L-shaped flange after ring rolling.
Background
In the forging process of a large L-shaped flange (such as a wind power flange), the production process sequence is generally as follows: in the existing production process, after the L-shaped flange workpiece is rolled by a ring rolling machine, certain defects exist in the aspect of forming after the ring is rolled, so that various inconveniences are brought to subsequent finish machining, for example, on one hand, after the L-shaped flange is rolled, the flange needs to be moved to a rounding flattening device for rough machining, on the other hand, the existing ring rolling machine cannot detect the shape of the L-shaped flange workpiece, the roundness of the L-shaped flange semi-finished product is poor, the flatness of the surface is also deficient, certain difficulties are brought to subsequent machining of the L-shaped flange, the production cost is increased, and the qualification rate of the L-shaped flange product is affected.
Therefore, a rounding and flattening device and a rounding and flattening method for the L-shaped flange after ring rolling are designed to solve the problems.
Disclosure of Invention
The invention aims to solve the defects of insufficient roundness after ring rolling and poor flatness of the surface of a ring body of an L-shaped flange in the prior art, and provides a rounding and flattening device and a rounding and flattening method for the L-shaped flange after ring rolling.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a rounding and flattening device after an L-shaped flange rolls rings comprises:
the circle fixing mechanism is arranged on the transverse track in a sliding manner and is used for radially grinding and fixing the L-shaped flange;
the leveling mechanism is arranged on the transverse track in a sliding manner and is used for rolling the axial surface of the L-shaped flange;
the bearing mechanism is arranged on the longitudinal rail in a sliding manner and positioned at two sides of the transverse rail and is used for bearing and rotating the L-shaped flange;
the detection mechanism is hung and installed right above the middle of the rounding mechanism and the leveling mechanism and comprises a CCD photoelectric diameter measuring instrument for detecting the diameter length of the L-shaped flange, a laser scanner for detecting the flatness of the surface of the L-shaped flange and a telescopic rod for driving the CCD photoelectric diameter measuring instrument and the laser scanner to move up and down;
the remote control room is respectively connected with the rounding mechanism, the leveling mechanism, the bearing mechanism and the detection mechanism in a signal transmission and control manner, a control terminal and an operation processing terminal are arranged in the remote control room, and the operation processing terminal is used for processing detection data of the L-shaped flange structure transmitted by the detection mechanism and controlling and operating the mechanisms through the control terminal.
Further, the round fixing mechanism comprises a mechanism main body, a main grinding roller and a secondary grinding roller, wherein the mechanism main body is fixedly arranged on the ground, a first hydraulic push rod and a second hydraulic push rod are respectively arranged on the mechanism main body, the first hydraulic push rod is located at two ends of one side of the mechanism main body, the output end of the first hydraulic push rod is fixedly connected with the secondary grinding bearing table, the second hydraulic push rod is located at the upper part of the mechanism main body, the output end of the second hydraulic push rod is fixedly connected with the vertical hydraulic press, the main grinding roller is arranged at the lower part of the front end of the axis direction of the mechanism main body, the bottom of the secondary grinding bearing table is slidably connected with the transverse track, a rotating hole for accommodating the secondary grinding roller is formed in the middle of the upper end face of the secondary grinding bearing table, the bottom of the vertical hydraulic press is provided with the secondary grinding roller, and the vertical hydraulic press drives the secondary grinding roller to move up and down along the vertical direction.
Further, leveling mechanism includes lower cone roller, goes up cone roller, driving machine and hydraulic pressure and carries the pull rod, lower cone roller and last cone roller are arranged from top to bottom along same vertical direction, and lower cone roller fixed mounting is in one side lower part of driving machine, goes up the cone roller and slides and set up one side upper portion of driving machine, driving machine slides and sets up on the horizontal track to provide sliding force through hydraulic mechanism, upward set up flutedly on the cone roller cone, upward cone roller with hydraulic pressure carries the lower extreme fixed connection of pull rod, upward cone roller is in the drive of hydraulic pressure and carries the slide of pull rod down along setting up at the side end face of the driving machine, carries out the flattening to L type flange surface through the extrusion force between lower cone roller and the last cone roller.
Further, the bearing mechanism comprises a rotating table, a lifter, a sliding table and a pushing machine, wherein the sliding table is arranged on the longitudinal rail in a sliding manner and is connected with the output end of the pushing machine through a push rod, so that the sliding table slides on the longitudinal rail, the lifter used for enabling the rotating table to lift up and down is arranged at the upper end part of the sliding table, a roller with a power source is arranged on the upper end surface of the rotating table, and the L-shaped flange is supported on the roller and rotates around the axis circumference of the L-shaped flange under the rotation of the roller.
Further, the telescopic rod is an electric telescopic rod, the upper end part of the telescopic rod is hung and installed right above the circle center of the L-shaped flange, the CCD photoelectric diameter measuring instrument and the laser scanner are rotatably installed at the lower end part of the telescopic rod, the laser scanner is located above the CCD photoelectric diameter measuring instrument, and the CCD photoelectric diameter measuring instrument, the laser scanner and the telescopic rod are all connected with a control terminal and an operation processing terminal which are arranged in the remote control room in a signal transmission mode; the electric tilt angle adjusting device is characterized in that an electric tilt angle adjusting device capable of rotating by 360 degrees is arranged at the lower end part of the telescopic rod, the laser scanner is arranged on the lower end surface of the electric tilt angle adjusting device, an electric tilt angle adjusting machine is arranged at the lower side of the laser scanner, and the CCD photoelectric diameter measuring device is arranged at the lower side of the electric tilt angle adjusting device, and the electric tilt angle adjusting device adjusts the tilt angle of the CCD photoelectric diameter measuring device in the vertical direction.
Further, swing arms which can be movably stretched along the same horizontal plane are arranged on two sides of the main grinding roller, a calibration roller for assisting in rounding the L-shaped flange is arranged at the end part of each swing arm, and the calibration roller and the main grinding roller are located at the same horizontal height.
Further, the CCD photoelectric calliper is a dynamic imager based on a CCD image sensor, the laser scanner is a laser scanner based on a time flight principle and emitting through a rotating optical component to form a two-dimensional scanning surface, and the laser scanner is used for scanning the contour of the surface area of the L-shaped flange, so that the flatness of the L-shaped flange is detected.
The application method of the device for rounding and flattening the L-shaped flange after ring rolling comprises the following steps:
s1, ring rolling is carried out on an L-shaped flange blank, at the moment, a sliding table of a supporting mechanism is pulled to two sides far away from a transverse track by a pushing machine, the L-shaped flange blank is ring-expanded and rolled by a main rolling roller and a secondary rolling roller, an upper cone roller is driven to move towards a lower cone roller by a hydraulic lifting rod, and rolling operation of an axial surface is carried out on the L-shaped flange blank;
s2, after the ring expansion rolling operation of the L-shaped flange blank is completed in the step S1, a pushing machine of a bearing mechanism is started, a sliding table is pushed towards the direction of a transverse track through a pushing rod of the pushing machine, so that a rotating table is positioned right below the L-shaped flange, then a lifter is started to jack up the rotating table upwards, a roller on the upper end face of the rotating table is contacted with the lower side face of the L-shaped flange, the L-shaped flange is jacked up upwards until the lower side face of the L-shaped flange is separated from a grinding bearing table and is not contacted any more, and meanwhile, a vertical hydraulic press is used for pumping the L-shaped flange from a grinding roller through a rotating hole;
s3, starting a roller of a rotating table to drive the L-shaped flange to rotate circumferentially around the axis of the L-shaped flange, controlling a telescopic rod of a detection mechanism by a control terminal in a control room to drive a CCD photoelectric calliper and a laser scanner to descend towards the L-shaped flange, carrying out dynamic imaging shooting on the L-shaped flange by the CCD photoelectric calliper, transmitting the shot image to an operation processing terminal of a remote control room, calculating circumferential diameter data of the L-shaped flange by an image method, counting the circumferential diameter data of the L-shaped flange, and calibrating an area needing circle fixing correction according to an allowable range of the diameter error of the L-shaped flange;
s4, after the measurement and recording of the circumferential diameter data of the L-shaped flange are completed, the height of the telescopic rod is further lowered slowly, so that the laser scanner is lowered to be at the same horizontal height as the L-shaped flange, the laser scanner scans the contour of the area in the vertical direction of the circumferential surface of the L-shaped flange, a three-dimensional model of the axial contour of the L-shaped flange is drawn, and the area with flatness to be repaired is calibrated according to the three-dimensional model;
s5, according to the step S3 and the step S4, the area needing to be circularly corrected and the area needing to be repaired in flatness are marked on the L-shaped flange, the L-shaped flange is rotated to the area needing to be circularly corrected and the area needing to be repaired in surface flatness through a rotating table, a main grinding roller and a secondary grinding roller are started again to circularly expand, circularly grind and circularly correct the area marked by the L-shaped flange, and the area needing to be repaired in flatness marked by the L-shaped flange is circularly repaired through a lower cone roller and an upper cone roller, so that the circle fixing and flattening operation of the L-shaped flange is completed.
Further, in the step S3, the circumference diameter data of the L-shaped flange is measured by an image method, which includes the following contents:
according to the lifting height of the telescopic rod, the vertical height between the CCD photoelectric diameter measuring instrument and the L-shaped flange is obtained and is recorded as H, the L-shaped flange is subjected to dynamic imaging shooting by virtue of the CCD photoelectric diameter measuring instrument, the length between the CCD photoelectric diameter measuring instrument and the edge contour of the L-shaped flange is obtained through the shot image and is recorded as L, and according to the Pythagorean theorem formula: D=L, namely-H, calculating the value of D, and measuring and calculating the diameter length of the L-shaped flange to be 2D under the dynamic imaging shooting view angle;
equally dividing the circumferential area where the L-shaped flanges are positioned into equal alpha parts, and then, the angle interval of each image shooting view angle is 360 degrees/alpha, namely, the diameter length data of the alpha group of L-shaped flanges are calculated by statistics, and the diameter length data of the alpha group of L-shaped flanges are calibrated according to the allowable range of the diameter error of the L-shaped flanges, so that the area needing circle fixing correction on the L-shaped flanges is calibrated.
Further, when the step S5 is executed, the swing arms are started at the same time, so that the calibration rollers on the swing arms are mutually close until the calibration rollers are propped against the outer side surface of the L-shaped flange, and the circle fixing is assisted.
Compared with the prior art, the invention has the beneficial effects that: the circle fixing and leveling device is a circle grinding and circle fixing and leveling integrated machine, after the ring grinding and reaming of the L-shaped flange blank are carried out, a semi-finished product of the L-shaped flange is not required to be moved, the L-shaped flange can be directly subjected to circumferential rotation by means of a bearing mechanism, meanwhile, the circumferential diameter and the flatness of the L-shaped flange are detected by utilizing a detection mechanism, the production burden is greatly reduced, the production efficiency is improved, the circle fixing and flatness of the semi-finished product of the L-shaped flange after the ring grinding is ensured to meet the processing requirement, the position, beyond the allowable error range, of the L-shaped flange is detected by utilizing the detection mechanism, the semi-finished product of the L-shaped flange is subjected to local circle fixing and leveling operation by utilizing the circle fixing mechanism and leveling mechanism, and rough processing operation on the flange blank after the ring grinding is completed until the semi-finished product of the L-shaped flange meets the subsequent processing requirement; the device provided by the invention can be used for carrying out ring rolling reaming and fixed circle flatness detection on the L-shaped flange, and also can be used for carrying out fixed circle correction and flatness restoration, so that the roundness and flatness of the L-shaped flange after ring rolling are improved, the production process of the L-shaped flange is optimized, the manufacturing production cost is reduced, and the qualification rate of the L-shaped flange product is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a rounding and flattening device after grinding an L-shaped flange ring;
FIG. 2 is a schematic structural view of a rounding mechanism of a rounding and flattening device after an L-shaped flange is rolled;
FIG. 3 is a schematic structural view of a leveling mechanism of the rounding and leveling device after grinding an L-shaped flange ring;
FIG. 4 is a schematic structural view of a supporting mechanism of the rounding and flattening device after grinding the ring of the L-shaped flange;
FIG. 5 is a schematic diagram illustrating the installation of a mechanism for detecting a rounding and flattening device after grinding an L-shaped flange ring;
FIG. 6 is an enlarged schematic view of the structure of FIG. 5A according to the present invention;
FIG. 7 is a flow chart of a rounding and flattening method according to an embodiment of the present invention.
The reference numerals in the drawings: 100. a rounding mechanism; 101. a mechanism body; 102. a main roller; 103. from a mill roll; 104. a first hydraulic pushrod; 105. a second hydraulic pushrod; 106. a slave roller bearing table; 107. a vertical hydraulic press; 108. a turning hole; 109. swing arms; 110. a calibration roller; 200. a leveling mechanism; 201. a lower cone roller; 202. an upper cone roller; 2021. a groove; 203. a transmission machine; 2031. a slideway; 204. a hydraulic lifting rod; 300. a bearing mechanism; 301. a rotating table; 302. a lifter; 303. a sliding table; 304. a pusher; 305. a roller; 400. a detection mechanism; 401. CCD photoelectric calliper; 4011. an electric tilt angle adjuster; 402. a laser scanner; 403. a telescopic rod; 4031. an electric cradle head; 500. a transverse rail; 501. a longitudinal rail.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
This embodiment introduces a circle and leveling device after L flange grinds ring, as shown in FIG. 1, this circle and leveling device includes: the device comprises a rounding mechanism 100, a leveling mechanism 200, a bearing mechanism 300, a detection mechanism 400, a transverse rail 500, a longitudinal rail 501 and a remote control room; wherein the method comprises the steps of
The circle fixing mechanism 100 is arranged on the transverse rail 500 in a sliding manner and is used for radially grinding and fixing the L-shaped flange; the leveling mechanism 200 is slidably arranged on the transverse rail 500 and is used for rolling the axial surface of the L-shaped flange; the bearing mechanism 300 is slidably arranged on the longitudinal rail 501 and is positioned on two sides of the transverse rail 500, and is used for bearing and rotating the L-shaped flange.
The detection mechanism 400 for measuring the diameter and the surface flatness of the L-shaped flange after ring rolling is hung and installed right above the midpoint between the rounding mechanism 100 and the leveling mechanism 200, and comprises a CCD photoelectric diameter meter 401, a laser scanner 402 and a telescopic rod 403, wherein the CCD photoelectric diameter meter 401 and the laser scanner 402 are all installed at the lower end part of the telescopic rod 403, the CCD photoelectric diameter meter 401 is used for detecting the diameter length of the L-shaped flange, and the laser scanner 402 is used for detecting the flatness of the surface of the L-shaped flange; the CCD photoelectric calliper 401 is a dynamic imager based on a CCD image sensor, and is used for dynamically imaging the L-shaped flange, the laser scanner 402 is a laser scanner which is based on a time flight principle and forms a two-dimensional scanning surface through the emission of a rotating optical component, the surface area outline of the L-shaped flange is scanned through the laser scanner 402, a three-dimensional model of the axial outline of the L-shaped flange is drawn, and the flatness of the L-shaped flange is detected according to the three-dimensional model.
The transverse rail 500 and the longitudinal rail 501 in this embodiment are arranged perpendicular to each other, and depending on the installation conditions of the rounding mechanism 100, the leveling mechanism 200 and the bearing mechanism 300, the transverse rail 500 and the longitudinal rail 501 can be laid on the ground, and the upper end surfaces of the transverse rail 500 and the longitudinal rail 501 are kept flush with the ground.
In order to reduce the workload of field workers, the rounding and leveling device provided in this embodiment may be controlled and monitored by a remote control room, where the remote control room establishes signal transmission and control connection with the rounding mechanism 100, the leveling mechanism 200, the bearing mechanism 300 and the detecting mechanism 400, and a control terminal and an arithmetic processing terminal are provided in the remote control room, where the arithmetic processing terminal is used to process the detection data of the L-shaped flange structure transmitted by the detecting mechanism 400, and control and operate each mechanism through the control terminal.
Specifically, as shown in fig. 2, the rounding mechanism 100 includes a mechanism main body 101, a main grinding roller 102 and a secondary grinding roller 103, the mechanism main body 101 is fixedly installed on the ground, a transverse track 500 is laid on the ground on one side of the mechanism main body 101, a first hydraulic push rod 104 and a second hydraulic push rod 105 are respectively arranged on the mechanism main body 101, wherein the first hydraulic push rod 104 is positioned at two ends of one side of the mechanism main body 101, the second hydraulic push rod 105 is positioned at the upper part of the mechanism main body 101, the output end of the first hydraulic push rod 104 is fixedly connected with the secondary grinding bearing table 106, swing arms 109 which can be movably stretched along the same horizontal plane are arranged at two sides of the main grinding roller 102, one end of each swing arm 109 is rotatably installed on the mechanism main body 101, a calibration roller 110 for assisting rounding an L-shaped flange is installed at the other end, the opening and closing angle of each swing arm 109 is adjusted, the calibration roller 110 and the main grinding roller 102 are positioned at the same horizontal height, and the two calibration rollers 110 are used for clamping and restraining the L-shaped flange to assist rounding; the main grinding roller 102 is arranged at the lower part of the front end of the mechanism main body 101 in the axial direction, the bottom of the auxiliary grinding bearing table 106 is slidably connected to the transverse track 500, a rotary hole 108 for accommodating the auxiliary grinding roller 103 is formed in the middle of the upper end surface of the auxiliary grinding bearing table 106, the upper end surface of the auxiliary grinding bearing table 106 is lower than the main grinding roller 102 for avoiding affecting the round fixing of the L-shaped flange, the auxiliary grinding roller 103 is arranged at the bottom of the vertical hydraulic press 107, and the vertical hydraulic press 107 drives the auxiliary grinding roller 103 to move up and down in the vertical direction.
As shown in fig. 3, the leveling mechanism 200 includes a lower cone roller 201, an upper cone roller 202, a driving machine 203 and a hydraulic lifting rod 204, the lower cone roller 201 and the upper cone roller 202 are vertically arranged along the same vertical direction, the lower cone roller 201 is fixedly installed at the lower part of one side of the driving machine 203, the upper cone roller 202 is slidably arranged at the upper part of one side of the driving machine 203, the upper cone roller 202 moves downwards to be extruded and matched with the lower cone roller 201 to roll an L-shaped flange axially, so that the surface of the L-shaped flange is uniformly and flatly maintained, the driving machine 203 is slidably arranged on a transverse track 500, and moves on the transverse track 500 by a hydraulic mechanism, wherein a groove 2021 is formed on the cone of the upper cone roller 202, the upper cone roller 202 is fixedly connected with the lower end of the hydraulic lifting rod 204, the groove 2021 can press the axial structural surface of the L-shaped flange, the hydraulic lifting rod 204 drives the upper cone roller 202 to slide up and down along a slideway 2031 arranged at the side end surface of the driving machine 203, and the gap between the lower cone roller 201 and the upper cone roller 202 can be flexibly repaired.
As shown in fig. 4, the supporting mechanism 300 includes a rotating table 301, a lifter 302, a sliding table 303 and a pushing machine 304, where the sliding table 303 is slidably disposed on a longitudinal rail 501 and connected to an output end of the pushing machine 304 by a push rod, so that the pushing machine 304 pushes the sliding table 303 to slide on the longitudinal rail 501, the lifter 302 for lifting the rotating table 301 up and down is installed at an upper end of the sliding table 303, a roller 305 with a power source is installed at an upper end surface of the rotating table 301, the L-shaped flange is supported by the roller 305, and the L-shaped flange is driven to rotate circumferentially around an axis thereof under rotation of the roller 305, so that the detection mechanism 400 is convenient for performing omnibearing dynamic detection measurement on a circumferential diameter and surface flatness of the L-shaped flange.
As shown in fig. 5, the telescopic rod 403 in this embodiment is an electric telescopic rod, the upper end portion of the telescopic rod 403 is suspended and installed right above the center of the L-shaped flange (i.e. right above the middle of the rounding mechanism 100 and the leveling mechanism 200), the CCD photoelectric caliper 401 and the laser scanner 402 are rotatably installed at the lower end portion of the telescopic rod 403, and the laser scanner 402 is located above the CCD photoelectric caliper 401, and the CCD photoelectric caliper 401, the laser scanner 402 and the telescopic rod 403 are all connected with a remote control room by a control terminal and an operation processing terminal to establish signal transmission.
Specifically, as shown in fig. 6, the lower end of the telescopic rod 403 is provided with an electric cradle 4031 rotating by 360 degrees, the laser scanner 402 is installed on the lower end surface of the electric cradle 4031, and the laser scanner 402 can scan the flatness of the circumferential surface of the L-shaped flange under the rotation of the electric cradle 4031; an electric tilt angle adjuster 4011 is installed on the lower side of the laser scanner 402, the CCD photoelectric diameter measuring instrument 401 is installed on the lower side of the electric tilt angle adjuster 4011, the electric tilt angle adjuster 4011 adjusts the tilt angle of the CCD photoelectric diameter measuring instrument 401 in the vertical direction, the position of the detecting mechanism 400 can be flexibly adjusted in the vertical direction under the support of a telescopic rod 403, the laser scanner 402 can be driven to perform circumferential scanning under the support of the electric tilt angle adjuster 4011 and an electric cradle 4031, and the imaging angle of the CCD photoelectric diameter measuring instrument 401 can be adjusted and met according to the use requirement.
Example 2
As shown in fig. 7, this embodiment provides, based on the first embodiment, a method for rounding and leveling an L-shaped flange after ring rolling by using a rounding and leveling device, the method comprising the following steps:
s1, ring expansion rolling of an L-shaped flange blank: the ring rolling is carried out on the L-shaped flange blank, at this time, the sliding table 303 of the supporting mechanism 300 is pulled to two sides far away from the transverse track 500 by the pushing machine 304, the L-shaped flange blank is ring-expanded and rolled by the main rolling roller 102 and the auxiliary rolling roller 103, and the upper cone roller 202 is driven to move towards the lower cone roller 201 by the hydraulic lifting rod 204, so that the rolling operation of the axial surface of the L-shaped flange blank is carried out.
S2, mechanism conversion and supporting of an L-shaped flange: after the ring expansion rolling operation of the L-shaped flange blank is completed in step S1 to form a semi-finished product of the L-shaped flange, starting the pushing machine 304 of the bearing mechanism 300, pushing the sliding table 303 towards the direction of the transverse track 500 through the pushing rod of the pushing machine 304, enabling the rotating table 301 to be located right below the L-shaped flange, starting the lifting machine 302 to jack up the rotating table 301 upwards, enabling the roller 305 on the upper end face of the rotating table 301 to be in contact with the lower side face of the L-shaped flange, jack up the L-shaped flange upwards until the lower side face of the L-shaped flange is separated from the rolling bearing table 106 and is not in contact any more, and simultaneously pulling out the grinding roller 103 from the rotating hole 108 through the vertical hydraulic press 107.
S3, dynamically measuring the circumference diameter of the L-shaped flange: the roller 305 of the rotating table 301 is started to drive the L-shaped flange to rotate circumferentially around the axis of the L-shaped flange, the telescopic rod 403 of the detecting mechanism 400 is controlled by the control terminal in the control room to drive the CCD photoelectric calliper 401 and the laser scanner 402 to descend towards the position of the L-shaped flange, the L-shaped flange is subjected to dynamic imaging shooting through the CCD photoelectric calliper 401, the shot image is transmitted to the operation processing terminal of the remote control room, the circumferential diameter data of the L-shaped flange is measured and calculated through an image method, the circumferential diameter data of the L-shaped flange is counted, and an area needing rounding correction is calibrated according to the allowable range of the diameter error of the L-shaped flange;
measuring and calculating circumference diameter data of the L-shaped flange by an image method, wherein the circumference diameter data comprises the following contents:
according to the lifting height of the telescopic rod 403, the vertical height between the CCD photoelectric diameter measuring instrument 401 and the L-shaped flange is obtained, the vertical height is recorded as H, the L-shaped flange is subjected to dynamic imaging shooting by virtue of the CCD photoelectric diameter measuring instrument 401, the length between the CCD photoelectric diameter measuring instrument 401 and the edge contour of the L-shaped flange is obtained through the shot image, the length is recorded as L, and the length is recorded as L according to the Pythagorean theorem formula: D=L, namely-H, calculating the value of D, and measuring and calculating the diameter length of the L-shaped flange to be 2D under the dynamic imaging shooting view angle;
equally dividing the circumferential area where the L-shaped flanges are positioned into equal alpha parts, and then, the angle interval of each image shooting view angle is 360 degrees/alpha, namely, the diameter length data of the alpha group of L-shaped flanges are calculated by statistics, and the diameter length data of the alpha group of L-shaped flanges are calibrated according to the allowable range of the diameter error of the L-shaped flanges, so that the area needing circle fixing correction on the L-shaped flanges is calibrated.
For example, in this embodiment, the circumferential area where the L-shaped flange is located may be equally divided into 36 parts, the angle interval of each image capturing view angle is 10 °, that is, the CCD photoelectric calliper 401 captures one image every 10 °, the center position where the L-shaped flange is located is used as a fixed point, 36 images are manually captured along the circumferential direction of the L-shaped flange, according to the above measurement and calculation method, diameter data of 36 groups of L-shaped flanges are obtained, in order to improve accuracy, more parts, such as 72 parts, 90 parts, 120 parts … …,
s4, scanning the flatness of the profile detection surface of the L-shaped flange: after the measurement and recording of the circumferential diameter data of the L-shaped flange are completed, the height of the telescopic rod 403 is further and slowly lowered, so that the laser scanner 402 is lowered to be at the same horizontal height with the L-shaped flange, the laser scanner 402 scans the area outline of the circumferential surface of the L-shaped flange in the vertical direction, a three-dimensional model of the axial outline of the L-shaped flange is drawn, and the area with the flatness needing to be repaired is calibrated according to the three-dimensional model and the allowable range value of the flatness error of the surface of the L-shaped flange required by production.
S5, fixed circle correction and flatness restoration: according to the step S3 and the step S4, the area needing circle correction and the area needing repair of flatness are marked on the obtained L-shaped flange, the L-shaped flange is rotated to the area needing circle correction and surface flatness repair through a rotating table 301, the main grinding roller 102 and the area needing circle correction marked on the L-shaped flange from the grinding roller 103 are started again, ring expanding grinding circle correction is carried out on the area needing circle correction, the area needing repair is marked on the L-shaped flange through a lower cone roller 201 and an upper cone roller 202, rolling repair is carried out on the area needing repair on the L-shaped flange, circle fixing flatness operation on the L-shaped flange is completed, in the step, the swing arms 109 are started at the same time, the two calibration rollers 110 on the two swing arms 109 are mutually closed until the calibration rollers 110 are abutted against the outer side surfaces of the L-shaped flange, the diameter error of the L-shaped flange is eliminated, after the circle fixing and flatness operation on the L-shaped flange is completed, the step S2 to the step S4 are repeated again, the measurement of the circumference diameter of the L-shaped flange and the flatness detection on the L-shaped flange are carried out, whether the circle fixing and flatness of the L-shaped flange reach the requirement and the flatness requirement are met or not met, if the step S2 is repeated, and the step S2 is repeated until the flatness requirement is met.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. An apparatus for rounding and flattening an L-shaped flange after ring milling, the apparatus comprising:
the circle fixing mechanism (100) is arranged on the transverse track (500) in a sliding manner and is used for radially grinding and fixing the L-shaped flange;
the leveling mechanism (200) is arranged on the transverse track (500) in a sliding manner and is used for rolling the axial surface of the L-shaped flange;
the bearing mechanism (300) is arranged on the longitudinal rail (501) in a sliding manner and is positioned on two sides of the transverse rail (500) and used for bearing and rotating the L-shaped flange, the bearing mechanism (300) comprises a rotating table (301), a lifter (302), a sliding table (303) and a pushing machine (304), the sliding table (303) is arranged on the longitudinal rail (501) in a sliding manner and is connected with the output end of the pushing machine (304) through a push rod, the sliding table (303) slides on the longitudinal rail (501), the lifter (302) used for enabling the rotating table (301) to lift up and down is arranged at the upper end part of the sliding table (303), a roller (305) with a power source is arranged on the upper end face of the rotating table (301), and the L-shaped flange is supported on the roller (305) and rotates circumferentially around the axis of the L-shaped flange under the rotation of the roller (305);
the detection mechanism (400) is hung and installed right above the middle of the round fixing mechanism (100) and the leveling mechanism (200), the round fixing mechanism comprises a CCD photoelectric diameter measuring instrument (401) for detecting the diameter length of an L-shaped flange, a laser scanner (402) for detecting the flatness of the surface of the L-shaped flange and a telescopic rod (403) for driving the CCD photoelectric diameter measuring instrument (401) and the laser scanner (402) to move up and down, the telescopic rod (403) is an electric telescopic rod, the upper end part of the telescopic rod (403) is hung and installed right above the center of a circle of the L-shaped flange, the CCD photoelectric diameter measuring instrument (401) and the laser scanner (402) are rotatably installed at the lower end part of the telescopic rod (403), the laser scanner (402) is located above the CCD photoelectric diameter measuring instrument (401), the laser scanner (402) and the telescopic rod (403) are all connected with a control terminal and an operation processing terminal in a remote control room, the lower end part of the telescopic rod (403) is provided with an electric rotating 360 degrees, the electric tilt angle of the telescopic rod (403) is installed at the electric tilt angle measuring instrument (40), the tilt angle of the laser scanner (40) is installed at the side of the cloud adjusting device (401), the tilt angle of the cloud adjusting device (40) is installed at the side of the cloud adjusting device (40), the method comprises the steps that an electric inclination angle adjuster (4011) adjusts the inclination angle of a CCD photoelectric caliper (401) in the vertical direction, the CCD photoelectric caliper (401) is a dynamic imager based on a CCD image sensor, a laser scanner (402) is a laser scanner based on a time flight principle and capable of forming a two-dimensional scanning surface through the emission of a rotating optical component, and the laser scanner (402) scans the contour of the surface area of an L-shaped flange so as to realize the detection of the flatness of the L-shaped flange;
the remote control room is respectively connected with the rounding mechanism (100), the leveling mechanism (200), the bearing mechanism (300) and the detection mechanism (400) in a signal transmission and control manner, a control terminal and an operation processing terminal are arranged in the remote control room, and the operation processing terminal is used for processing detection data of the L-shaped flange structure transmitted by the detection mechanism (400) and controlling and operating the mechanisms through the control terminal.
2. The device for rounding and leveling the rear of the L-shaped flange grinding ring according to claim 1, wherein the rounding mechanism (100) comprises a mechanism main body (101), a main grinding roller (102) and a secondary grinding roller (103), the mechanism main body (101) is fixedly installed on the ground, a first hydraulic push rod (104) and a second hydraulic push rod (105) are respectively arranged on the mechanism main body (101), the first hydraulic push rod (104) is positioned at two ends of one side of the mechanism main body (101), the output end of the first hydraulic push rod is fixedly connected with the secondary grinding bearing table (106), the second hydraulic push rod (105) is positioned at the upper part of the mechanism main body (101), the output end of the second hydraulic push rod is fixedly connected with a vertical hydraulic press (107), the main grinding roller (102) is installed at the lower part of the front end of the axis direction of the mechanism main body (101), the bottom of the secondary grinding bearing table (106) is slidingly connected to the transverse track (500), a rotating hole (108) for accommodating the secondary grinding roller (103) is formed in the middle of the upper end surface of the secondary grinding bearing table (106), and the vertical grinding roller (107) is installed on the bottom of the vertical grinding roller (107).
3. The device for fixing and leveling the rear of the L-shaped flange ring according to claim 1, wherein the leveling mechanism (200) comprises a lower conical roller (201), an upper conical roller (202), a transmission machine (203) and a hydraulic lifting rod (204), the lower conical roller (201) and the upper conical roller (202) are arranged vertically along the same vertical direction, the lower conical roller (201) is fixedly arranged at the lower part of one side of the transmission machine (203), the upper conical roller (202) is slidably arranged at the upper part of one side of the transmission machine (203), the transmission machine (203) is slidably arranged on the transverse track (500) and provides sliding force through a hydraulic mechanism, a groove (2021) is formed in a cone of the upper conical roller (202), the upper conical roller (202) is fixedly connected with the lower end of the hydraulic lifting rod (204), the upper conical roller (202) is slidably arranged up and down along a slideway (1) arranged at the side end face of the transmission machine (203) under the driving of the hydraulic lifting rod (204), and the leveling force is carried out on the surface of the L-shaped flange ring between the lower conical roller (202) and the upper conical roller (201).
4. Device for post-ring sizing and flattening of L-shaped flanges according to claim 2, characterized in that swing arms (109) are provided on both sides of the main roller (102) that are movable and extendable along the same horizontal plane, the ends of the swing arms (109) are equipped with a calibration roller (110) for auxiliary sizing of L-shaped flanges, the calibration roller (110) being at the same level as the main roller (102).
5. A method of using an L-flange post-milling rounding and flattening apparatus according to any of claims 1-4, comprising the steps of:
s1, ring rolling is carried out on an L-shaped flange blank, at the moment, a sliding table (303) of a supporting mechanism (300) is pulled to two sides far away from a transverse track (500) by a pushing machine (304), the L-shaped flange blank is subjected to ring expanding rolling through a main rolling roller (102) and a secondary rolling roller (103), an upper cone roller (202) is driven to move towards a lower cone roller (201) by a hydraulic lifting rod (204), and rolling operation of an axial surface is carried out on the L-shaped flange blank;
s2, after the ring expansion rolling operation of the L-shaped flange blank is completed in the step S1, starting a pushing machine (304) of a bearing mechanism (300) after a semi-finished product of the L-shaped flange is formed, pushing a sliding table (303) towards a transverse track (500) through a push rod of the pushing machine (304), enabling a rotating table (301) to be located right below the L-shaped flange, then starting a lifter (302) to jack up the rotating table (301) upwards, enabling a roller (305) on the upper end face of the rotating table (301) to contact with the lower side face of the L-shaped flange, jack up the L-shaped flange upwards until the lower side face of the L-shaped flange is separated from a rolling bearing table (106) and is not contacted any more, and simultaneously enabling a grinding roller (103) to be pulled out of a rotating hole (108) through a vertical hydraulic machine (107);
s3, starting a roller (305) of a rotating table (301) to drive an L-shaped flange to rotate circumferentially around the axis of the L-shaped flange, controlling a telescopic rod (403) of a detection mechanism (400) by a control terminal in a control room to drive a CCD photoelectric calliper (401) and a laser scanner (402) to descend towards the L-shaped flange, carrying out dynamic imaging shooting on the L-shaped flange through the CCD photoelectric calliper (401), transmitting the shot image to an operation processing terminal of a remote control room, calculating circumferential diameter data of the L-shaped flange through an image method, counting the circumferential diameter data of the L-shaped flange, calibrating an area needing circle fixing correction according to the allowable range of the diameter error of the L-shaped flange, and calculating the circumferential diameter data of the L-shaped flange through the image method, wherein the method comprises the following steps:
according to the lifting height of the telescopic rod (403), the vertical height between the CCD photoelectric diameter measuring instrument (401) and the L-shaped flange is obtained and is recorded as H, the L-shaped flange is subjected to dynamic imaging shooting by virtue of the CCD photoelectric diameter measuring instrument (401), the length between the CCD photoelectric diameter measuring instrument (401) and the edge contour of the L-shaped flange is obtained through the shot image and is recorded as L, and the length is recorded as L according to the Pythagorean theorem formula: D=L, namely-H, calculating the value of D, and calculating the diameter length of the L-shaped flange under the dynamic imaging shooting view angle to be 2D;
equally dividing the circumferential area where the L-shaped flanges are positioned into equal alpha parts, and then, calculating the diameter length data of the alpha group of the L-shaped flanges by counting at an angle interval of 360 degrees/alpha of each image shooting visual angle, and calibrating the diameter length data of the alpha group of the L-shaped flanges by counting according to the allowable range of the diameter error of the L-shaped flanges to calibrate the area needing circle fixing correction on the L-shaped flanges;
s4, after the measurement and recording of the circumferential diameter data of the L-shaped flange are completed, the height of the telescopic rod (403) is further lowered slowly, so that the laser scanner (402) is lowered to be at the same horizontal height with the L-shaped flange, the laser scanner (402) scans the contour of the area in the vertical direction of the circumferential surface of the L-shaped flange, a three-dimensional model of the axial contour of the L-shaped flange is drawn, and the area with flatness needing to be repaired is calibrated according to the three-dimensional model;
s5, according to the step S3 and the step S4, the area needing the circle fixing correction and the area needing the repair of the flatness are marked on the L-shaped flange, the L-shaped flange is rotated to the area needing the circle fixing correction and the surface flatness repair through a rotating table (301), the main grinding roller (102) and the auxiliary grinding roller (103) are started again to perform the ring expanding grinding circle fixing correction on the area needing the circle fixing correction marked on the L-shaped flange, and the area needing the repair of the flatness marked on the L-shaped flange is crushed and repaired through a lower cone roller (201) and an upper cone roller (202), so that the circle fixing and flattening operation of the L-shaped flange is completed.
6. The method for using the device for rounding and leveling the L-shaped flange after ring rolling according to claim 5, wherein when the step S5 is executed, the swing arm (109) is started at the same time, so that the alignment rollers (110) on the swing arm (109) are mutually close until the alignment rollers (110) are abutted against the outer side surface of the L-shaped flange, and rounding is assisted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310806765.3A CN116511390B (en) | 2023-07-04 | Device and method for rounding and flattening L-shaped flange after ring grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310806765.3A CN116511390B (en) | 2023-07-04 | Device and method for rounding and flattening L-shaped flange after ring grinding |
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| Publication Number | Publication Date |
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| CN116511390A CN116511390A (en) | 2023-08-01 |
| CN116511390B true CN116511390B (en) | 2023-09-08 |
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