CN113358051A - Off-line detection device and method for dynamic hole pattern and roll gap of sizing mill roll frame - Google Patents
Off-line detection device and method for dynamic hole pattern and roll gap of sizing mill roll frame Download PDFInfo
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- CN113358051A CN113358051A CN202010152574.6A CN202010152574A CN113358051A CN 113358051 A CN113358051 A CN 113358051A CN 202010152574 A CN202010152574 A CN 202010152574A CN 113358051 A CN113358051 A CN 113358051A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses an off-line detection device and method for dynamic hole patterns and roll gap gaps of a sizing mill roll frame, wherein a hoisting station and a detection frame are arranged at two ends of a base, the detection frame is internally provided with a detection station, a driving motor of a translation mechanism is arranged at one side of the detection frame, and a transmission chain is laid on the top surface of the base; the three-roller driving mechanism is arranged on the detection frame at intervals, the light source and the linear and rotary motion mechanism are arranged on one side of the detection frame, and the camera is arranged on the linear and rotary motion mechanism. The method comprises the steps that a detected sizing mill roller frame is moved to a detection station through a hoisting station and a translation mechanism, and a three-roller driving mechanism clamps and drives three rollers in the roller frame to synchronously rotate at a set speed; setting a detection position of a camera, shooting a roll shape outline, and obtaining a dynamic hole pattern and a roll gap of the roll frame according to the variation of the roll shape outline in the radial direction and the position of the camera. The device and the method improve the accuracy and precision of detection, reasonably determine the roller shape repairing process, reduce the repairing amount, reduce the roller consumption and ensure the product quality.
Description
Technical Field
The invention relates to the technical field of detection, in particular to a sizing mill roller frame dynamic hole pattern and roll gap off-line detection device and method.
Background
The sizing mill is one of the main rolling tools in the production of hot-rolled seamless steel pipes, and can be used for reducing and sizing the pierced billets processed by the pipe penetrating machine under the action of tension to produce finished steel pipes with required specifications. The sizing mill mostly adopts a three-roller tension sizing mill at present, three rollers with included angles of 120 degrees are arranged on a rack, the diameter reduction of the steel pipe is realized by utilizing a hole pattern formed by combining three roller shapes, and the shape and the size precision of the roller shapes and the size of a roller gap between the rollers in actual production have direct relation to the shape, the size precision, the surface finish degree and the existence of a blue line of the steel pipe after the diameter reduction.
In production, if dynamic roll shape detection is carried out on the shape of the roll shape of a tension sizing mill roll frame to be repaired after use, the roll shape obtained after detection can directly determine the roll shape repairing amount according to the repairing process, so that the roll consumption is greatly reduced, and whether the edge part of a roll is damaged or not and whether a roll frame bearing fails or not can be found in advance through detecting the gap between the rolls during detection; if the shape of the roll frame of the tension sizing mill and the gap between the rolls after processing or repairing are detected, whether the shape of the roll frame hole pattern and the gap between the rolls are qualified or not can be judged, and the generation of defective products caused by the problems of the roll shape or the gap between the rolls is avoided.
Chinese patent document CN103383224A discloses a pilger roll pass detection device and a detection method, which implement the calculation and judgment steps of measuring roll basic data, installing and adjusting the detection device at the roll body position, measuring the parameter values of each part of the roll pass section and error values, and implement the full-size quantitative detection of pilger rolls. However, the device and the method can not detect the dynamic hole pattern and the roll gap of the roll frame of the three-roll tension sizing mill.
Disclosure of Invention
The invention aims to solve the technical problem of providing an off-line detection device and method for the dynamic hole pattern and the roll gap of a roller frame of a sizing mill, which realize the off-line detection of the dynamic hole pattern and the roll gap of the roller frame of the three-roller tension sizing mill, improve the detection accuracy and precision, and ensure the reliability and traceability of data, thereby determining the repair process of the roller pattern, reducing the repair amount, reducing the roller consumption and avoiding the generation of defective products and defective products.
In order to solve the technical problem, the off-line detection device for the dynamic hole patterns and the roll gap gaps of the roll frame of the sizing mill comprises a base, a hoisting station, a detection frame, a translation mechanism, a three-roll driving mechanism, a light source, a camera and a linear and rotary motion mechanism, wherein the hoisting station and the detection frame are respectively arranged at two ends of the top surface of the base, the base is internally provided with the detection station in the detection frame, the translation mechanism comprises a driving motor and a transmission chain, the driving motor is arranged on the end surface of the base at one side of the detection frame, the transmission chain is laid on the top surface of the base and extends from the hoisting station to the detection station, the driving motor drives the transmission chain to move, the three-roll driving mechanism is arranged on the detection frame and is arranged at intervals with included angles of 120 degrees, the light source, the linear and rotary motion mechanism are arranged at one side of the detection frame, the camera is arranged on the linear and rotary motion mechanism and drives the linear and rotary motion mechanism to move linearly and rotationally And (6) moving.
Further, the three-roller driving mechanism comprises an oil cylinder, a servo motor, a reduction box and an arc toothed bar, wherein the servo motor is connected with the arc toothed bar through the reduction box, the oil cylinder is arranged on the shell of the servo motor, and a driving rod is connected with the arc toothed bar.
Further, sharp and rotary motion mechanism is including slide plate, pole setting, slider, rotary disk, magnetic grid chi and encoder, the slide plate is located through the spout detect frame one side and adopt lead screw and step motor drive slide plate to remove, the rotary disk is located through the support the slide plate adopts servo motor drive rotary disk rotatory, the encoder is located the rotatory position of servo motor drive shaft detection rotary disk, the pole setting warp the rotary disk center is located the rotary disk surface, the slider is located the pole setting slides along the pole setting, camera and light source are located the slider, the magnetic grid chi is located the pole setting side.
Further, the light source is a high-intensity light source parallel to a CCD imaging system of the camera.
The off-line detection method for the dynamic hole pattern and the roll gap clearance of the sizing mill roll frame based on the detection device comprises the following steps:
step one, hoisting a roller frame of a sizing mill to be detected to a hoisting station through a crane, and carrying out plane support on the roller frame of the sizing mill to be detected in a rolling bearing mode;
secondly, starting a translation mechanism to move the roller frame of the sizing mill to be detected to a detection station in a detection frame through a transmission chain;
step three, starting a three-roller driving mechanism to clamp the roller frame of the detected sizing mill and driving three rollers in the roller frame of the detected sizing mill to synchronously rotate at a set speed;
moving the camera to a detection position through a linear and rotary motion mechanism according to the detection position, driving the camera to rotate along the circumferential direction of the roller frame of the detected sizing mill, carrying out circumferential scanning detection on the roller frame of the detected sizing mill by the camera to obtain a roller profile in the roller frame of the detected sizing mill, and rotating the camera to the position of the roller profile through the linear and rotary motion mechanism and locking the position;
recording the current rotation radius of the camera by a magnetic grid ruler in the linear and rotary motion mechanism, taking the current rotation radius as a roll shape detection initial position, driving the camera to rotate by the center of a detected sizing mill roll frame by the linear and rotary motion mechanism, shooting a sizing mill roll shape outline picture in a camera light source opposite lighting environment, and recording a shooting rotation angle by an encoder in the linear and rotary motion mechanism in the shooting process;
and step six, calculating the variation along the radial direction of the roll shape according to the profile picture of the roll shape of the sizing mill detected by the camera, and the position and the angle of the camera in the process of photographing and measuring in the radial direction and the circumferential direction of the roll shape of the sizing mill to obtain the profile shape data of the roll shape, further obtaining the dynamic hole pattern and the roll gap data of the roll frame of the detected sizing mill according to the profile shape data of the roll shape, and obtaining the parameter difference data of the roll shape of the sizing mill required by production.
The invention adopts the technical scheme that the device is provided with a hoisting station and a detection frame at two ends of the top surface of a base, the detection frame is internally provided with a detection station, a driving motor of a translation mechanism is arranged at one side of the detection frame, a transmission chain is laid on the top surface of the base and extends to the detection station from the hoisting station, the driving motor drives the transmission chain to move, a three-roller driving mechanism is arranged on the detection frame and is arranged at intervals with an included angle of 120 degrees, a light source, a linear and rotary motion mechanism are arranged at one side of the detection frame, and a camera is arranged on the linear and rotary motion mechanism and is driven by the linear and rotary motion mechanism to move linearly and rotate. The method comprises the steps that a detected sizing mill roller frame is moved to a detection station through a hoisting station and a translation mechanism, and a three-roller driving mechanism clamps and drives three rollers in the roller frame to synchronously rotate at a set speed; setting a detection position of a camera, shooting a roll shape outline, and obtaining a dynamic hole pattern and a roll gap of the roll frame according to the variation of the roll shape outline in the radial direction and the position of the camera. The device and the method realize the off-line detection of the dynamic hole patterns and the roll gap gaps of the roll frame of the three-roll tension sizing mill, improve the detection accuracy and precision, and ensure the reliability and traceability of data, thereby determining the repair process of the roll shape, reducing the repair amount, reducing the roll consumption and avoiding the generation of defective products and defective products.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is a schematic structural view of an off-line detection device for dynamic hole patterns and roll gap gaps of a sizing mill roll stand according to the present invention;
FIG. 2 is a plan view of the present apparatus;
FIG. 3 is a schematic view of the linear and rotational motion mechanism of the present apparatus.
Detailed Description
For example, as shown in fig. 1 and fig. 2, the off-line detection device for dynamic hole patterns and roll gap gaps of a sizing mill roll frame of the invention comprises a base 1, a hoisting station 2, a detection frame 3, a translation mechanism 4, a three-roll driving mechanism 5, a light source 6, a camera 7 and a linear and rotary movement mechanism 8, wherein the hoisting station 2 and the detection frame 3 are respectively arranged at two ends of the top surface of the base 1, the base 1 is internally provided with a detection station 31 in the detection frame 3, the translation mechanism 4 comprises a driving motor 41 and a transmission chain 42, the driving motor 41 is arranged on the end surface of the base 1 at one side of the detection frame 3, the transmission chain 42 is laid on the top surface of the base 1 and extends from the hoisting station 2 to the detection station 31, the driving motor 41 drives the transmission chain 42 to move, the three-roll driving mechanism 5 is arranged on the detection frame 3 and is arranged at intervals with an included angle of 120 degrees, the light source 6 and the linear and rotary motion mechanism 8 are arranged on one side of the detection frame 3, and the camera 7 is arranged on the linear and rotary motion mechanism 8 and is driven by the linear and rotary motion mechanism 8 to move linearly and rotationally.
Preferably, the three-roller driving mechanism 5 comprises an oil cylinder 51, a servo motor 52, a reduction box 53 and a circular arc toothed bar 54, the servo motor 52 is connected with the circular arc toothed bar 54 through the reduction box 53, the oil cylinder 51 is arranged in a shell of the servo motor 52, and a driving rod is connected with the circular arc toothed bar 54.
Preferably, the linear and rotary motion mechanism 8 includes a sliding plate 81, an upright rod 82, a sliding block 83, a rotary disk 84, a magnetic scale 85 and an encoder 86, the sliding plate 81 is disposed on one side of the detection frame through a sliding slot and drives the sliding plate 81 to move by a lead screw 87 and a stepping motor 88, the rotary disk 84 is disposed on the sliding plate 81 through a bracket 89 and drives the rotary disk 84 to rotate by a servo motor, the encoder 86 is disposed on the servo motor driving shaft to detect the rotation position of the rotary disk 84, the upright rod 82 is disposed on the surface of the rotary disk 84 through the center of the rotary disk 84, the sliding block 83 is disposed on the upright rod 82 and slides along the upright rod 82, the camera 7 and the light source 6 are disposed on the sliding block 83, and the magnetic scale 85 is disposed on the side surface of the upright rod 82.
Preferably, the light source 6 is a high intensity light source parallel to the CCD imaging system of the camera 7.
The off-line detection method for the dynamic hole pattern and the roll gap clearance of the sizing mill roll frame based on the detection device comprises the following steps:
step one, hoisting a roller frame of a sizing mill to be detected to a hoisting station through a crane, and carrying out plane support on the roller frame of the sizing mill to be detected in a rolling bearing mode;
secondly, starting a translation mechanism to move the roller frame of the sizing mill to be detected to a detection station in a detection frame through a transmission chain;
step three, starting a three-roller driving mechanism to clamp the roller frame of the detected sizing mill and driving three rollers in the roller frame of the detected sizing mill to synchronously rotate at a set speed;
moving the camera to a detection position through a linear and rotary motion mechanism according to the detection position, driving the camera to rotate along the circumferential direction of the roller frame of the detected sizing mill, carrying out circumferential scanning detection on the roller frame of the detected sizing mill by the camera to obtain a roller profile in the roller frame of the detected sizing mill, and rotating the camera to the position of the roller profile through the linear and rotary motion mechanism and locking the position;
recording the current rotation radius of the camera by a magnetic grid ruler in the linear and rotary motion mechanism, taking the current rotation radius as a roll shape detection initial position, driving the camera to rotate by the center of a detected sizing mill roll frame by the linear and rotary motion mechanism, shooting a sizing mill roll shape outline picture in a camera light source opposite lighting environment, and recording a shooting rotation angle by an encoder in the linear and rotary motion mechanism in the shooting process;
and step six, calculating the variation along the radial direction of the roll shape according to the profile picture of the roll shape of the sizing mill detected by the camera, and the position and the angle of the camera in the process of photographing and measuring in the radial direction and the circumferential direction of the roll shape of the sizing mill to obtain the profile shape data of the roll shape, further obtaining the dynamic hole pattern and the roll gap data of the roll frame of the detected sizing mill according to the profile shape data of the roll shape, and obtaining the parameter difference data of the roll shape of the sizing mill required by production.
The base of the device is arranged on an application field in a civil embedded part or expansion bolt mounting and fixing foot position mode, the roller frame of the sizing machine to be detected and a hoisting station realize plane support in a rolling bearing mode, and the roller frame of the sizing machine to be detected is dragged to complete plane linear motion through a transmission chain on a roller frame translation mechanism; the three-roller driving mechanism is precisely fixed on the detection frame through bolts, wherein the oil cylinder pushes the arc toothed bar to move forwards to a corresponding groove position of the roller frame of the sizing mill to be detected so as to clamp the roller frame of the sizing mill to be detected, and the driving of a roller on the roller frame of the sizing mill to be detected is realized through a servo motor and a reduction gearbox; the linear and rotary motion mechanism is arranged on one side of the detection frame, the linear motion of the camera is realized by the lifting of the sliding block along the upright rod, and the rotary motion is realized by the rotation of the rotary disk driven by the servo motor; the forward and backward movement of the camera is realized by utilizing a sliding plate driven by a lead screw and a stepping motor, the movement distance is detected and positioned by a magnetic grid ruler, and the circumferential precise positioning is realized by a rotary position through an encoder.
The method is non-contact roll shape contour detection, adopts an optical imaging principle, utilizes a high-strength parallel light source which is vertically arranged with a roll frame and a CCD imaging system of a camera, rotates along the circumference of the roll shape through the light source and the CCD imaging system, and detects the roll frame hole pattern and the roll gap of the sizing mill under the condition that three rolls on the roll frame of the sizing mill synchronously rotate. Thereby facilitating the determination of the repair process and repair amount of the roll shape, reducing the roll consumption and reducing the generation of defective products.
Claims (5)
1. The utility model provides a sizing mill roller frame developments pass and roll gap clearance off-line measuring device which characterized in that: the device comprises a base, a hoisting station, a detection frame, a translation mechanism, a three-roller driving mechanism, a light source, a camera and a linear and rotary motion mechanism, the hoisting station and the detection frame are respectively arranged at two ends of the top surface of the base, the base is provided with a detection station in the detection frame, the translation mechanism comprises a driving motor and a transmission chain, the driving motor is arranged on the end surface of the base on one side of the detection frame, the conveying chain is laid on the top surface of the base and extends from the hoisting station to the detection station, the driving motor drives the conveying chain to move, the three-roller driving mechanism is arranged on the detection frame and arranged at intervals with an included angle of 120 degrees, the light source, the linear and rotary motion mechanism are arranged on one side of the detection frame, the camera is arranged on the linear and rotary motion mechanism and is driven by the linear and rotary motion mechanism to move linearly and rotationally.
2. The sizing mill roller frame dynamic hole pattern and roll gap off-line detection device of claim 1, characterized in that: the three-roller driving mechanism comprises an oil cylinder, a servo motor, a reduction box and an arc toothed bar, the servo motor is connected with the arc toothed bar through the reduction box, and the oil cylinder is arranged on the shell of the servo motor and a driving rod is connected with the arc toothed bar.
3. The sizing mill roller frame dynamic hole type and roll gap off-line detection device according to claim 1 or 2, characterized in that: linear and rotary motion mechanism is including slide plate, pole setting, slider, rotary disk, magnetic grid chi and encoder, the slide plate is located through the spout detect frame one side and adopt lead screw and step motor drive slide plate to remove, the rotary disk is located through the support the slide plate adopts servo motor drive rotary disk rotatory, the encoder is located the rotatory position of servo motor drive shaft detection rotary disk, the pole setting warp the rotary disk center is located the rotary disk surface, the slider is located the pole setting slides along the pole setting, camera and light source are located the slider, the magnetic grid chi is located the pole setting side.
4. The sizing mill roller frame dynamic hole pattern and roll gap off-line detection device of claim 3, characterized in that: the light source is a high-intensity light source parallel to a CCD imaging system of the camera.
5. A sizing mill roller frame dynamic hole type and roll gap off-line detection method based on the detection device of any one of claims 1 to 4 is characterized by comprising the following steps:
step one, hoisting a roller frame of a sizing mill to be detected to a hoisting station through a crane, and carrying out plane support on the roller frame of the sizing mill to be detected in a rolling bearing mode;
secondly, starting a translation mechanism to move the roller frame of the sizing mill to be detected to a detection station in a detection frame through a transmission chain;
step three, starting a three-roller driving mechanism to clamp the roller frame of the detected sizing mill and driving three rollers in the roller frame of the detected sizing mill to synchronously rotate at a set speed;
moving the camera to a detection position through a linear and rotary motion mechanism according to the detection position, driving the camera to rotate along the circumferential direction of the roller frame of the detected sizing mill, carrying out circumferential scanning detection on the roller frame of the detected sizing mill by the camera to obtain a roller profile in the roller frame of the detected sizing mill, and rotating the camera to the position of the roller profile through the linear and rotary motion mechanism and locking the position;
recording the current rotation radius of the camera by a magnetic grid ruler in the linear and rotary motion mechanism, taking the current rotation radius as a roll shape detection initial position, driving the camera to rotate by the center of a detected sizing mill roll frame by the linear and rotary motion mechanism, shooting a sizing mill roll shape outline picture in a camera light source opposite lighting environment, and recording a shooting rotation angle by an encoder in the linear and rotary motion mechanism in the shooting process;
and step six, calculating the variation along the radial direction of the roll shape according to the profile picture of the roll shape of the sizing mill detected by the camera, and the position and the angle of the camera in the process of photographing and measuring in the radial direction and the circumferential direction of the roll shape of the sizing mill to obtain the profile shape data of the roll shape, further obtaining the dynamic hole pattern and the roll gap data of the roll frame of the detected sizing mill according to the profile shape data of the roll shape, and obtaining the parameter difference data of the roll shape of the sizing mill required by production.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010152574.6A CN113358051A (en) | 2020-03-06 | 2020-03-06 | Off-line detection device and method for dynamic hole pattern and roll gap of sizing mill roll frame |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010152574.6A CN113358051A (en) | 2020-03-06 | 2020-03-06 | Off-line detection device and method for dynamic hole pattern and roll gap of sizing mill roll frame |
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| CN113358051A true CN113358051A (en) | 2021-09-07 |
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| CN202010152574.6A Pending CN113358051A (en) | 2020-03-06 | 2020-03-06 | Off-line detection device and method for dynamic hole pattern and roll gap of sizing mill roll frame |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114880794A (en) * | 2022-04-25 | 2022-08-09 | 华侨大学 | Repair method, device, medium and equipment for prolonging service life of section steel roller |
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2020
- 2020-03-06 CN CN202010152574.6A patent/CN113358051A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114880794A (en) * | 2022-04-25 | 2022-08-09 | 华侨大学 | Repair method, device, medium and equipment for prolonging service life of section steel roller |
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