Continuous optical inspection machine for high boron low alloy high speed steel roll surface material

Abstract

The application relates to the technical field of optical detection, in particular to a continuous optical detection machine applied to high-boron low-alloy high-speed steel roller surface material, which comprises a vertical detection frame and a high-precision detection camera, and lateral overturning frames are hinged to the two sides of the vertical detection frame. The continuous optical detection machine applied to high-boron low-alloy high-speed steel roller surface material improves the detection efficiency by installing the high-precision detection camera on the upper end of the vertical detection frame and then performing optical detection on the high-boron low-alloy high-speed steel roller on the electrically-controlled rotary adjusting frame; the lateral overturning frames are hinged to the two sides of the vertical detection frame, the high-boron low-alloy high-speed steel roller is conveyed by the electrically-controlled oblique conveying belt in the lateral overturning frame, then the electrically-controlled rotary adjusting frame for switching the position of the high-boron low-alloy high-speed steel roller is installed in the vertical detection frame, the high-boron low-alloy high-speed steel roller can be quickly introduced and separated, and the operation is facilitated.

Description

Technical Field

[0001] This invention relates to the field of optical inspection technology, and in particular to a continuous optical inspection machine for surface materials of high boron low alloy high-speed steel rolls. Background Technology

[0002] Compared to traditional rolls, high-boron low-alloy high-speed steel rolls can withstand the high pressure, high temperature and intense friction during the rolling process, ensuring the smooth forming of steel. With its high hardness and wear resistance, it greatly extends the service life of the rolls and reduces the frequency of roll replacement in production. At the same time, it maintains high surface precision, ensuring the quality indicators such as dimensional tolerances and surface finish of the rolled steel.

[0003] The distribution density of borides and the morphology of carbides in the surface material of high-boron low-alloy high-speed steel rolls directly determine the roll's wear resistance and reduce surface loss during rolling. At the same time, the proportion of surface alloying elements (such as Cr, Mo, and V) affects the roll's resistance to high-temperature oxidation and thermal fatigue, thus preventing cracks from appearing at high temperatures.

[0004] To inspect the surface material of high-boron low-alloy high-speed steel rolls during production, specialized inspection equipment is needed to observe micro-cracks, wear marks, and roughness on the surface material, as well as internal defects such as shrinkage cavities and inclusions, and to verify whether the alloy element content meets design requirements. However, traditional optical inspection equipment has low inspection efficiency, and its inspection accuracy and operation control are relatively cumbersome. Summary of the Invention

[0005] The technical problem to be solved by this invention is that traditional optical inspection equipment has low inspection efficiency, and the inspection accuracy and operation control are relatively cumbersome.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a continuous optical inspection machine for surface materials of high boron low alloy high-speed steel rolls, including a vertical inspection frame and a high-precision inspection camera. The vertical inspection frame is hinged with lateral flipping frames on both sides. An electrically controlled inclined conveyor belt for conveying high boron low alloy high-speed steel rolls is installed inside the lateral flipping frames. An electrically controlled rotating adjustment frame for switching the position of high boron low alloy high-speed steel rolls is installed inside the vertical inspection frame. A plurality of top mounting through holes for mounting the high-precision inspection camera are opened at the upper end of the vertical inspection frame.

[0007] The top surface of the vertical testing frame is equipped with side-mounted lighting fixtures on both sides of the top mounting through hole.

[0008] The electrically controlled inclined conveyor belt includes a drive wheel, a driven wheel, a support wheel, a lateral conveyor belt, and an external limiting hook fixed to the outside of the lateral conveyor belt, all installed inside the lateral tilting frame.

[0009] The electrically controlled rotating adjustment frame includes a central assembly shaft tube installed at the lower end of the vertical detection frame, lateral support plates axially fixed at both ends of the central assembly shaft tube, a limiting groove opened on the arc-shaped surface of the lateral support plate, and a central drive wheel movably fitted on the outside of the central assembly shaft tube.

[0010] The vertical testing frame has bottom mounting through holes on both sides, and the two ends of the central mounting shaft tube pass through the bottom mounting through holes and are movably assembled with the vertical testing frame.

[0011] The outer side of the vertical testing frame is equipped with a side-mounted pulley drive mechanism for driving the centrally located assembly shaft tube.

[0012] The outer arc-shaped surface of the lateral support plate has an arc-shaped limiting groove on one side of the limiting groove.

[0013] An arc-shaped limiting frame is slidably assembled inside the arc-shaped limiting groove. An inner control rod is provided on the inner arc-shaped surface of the arc-shaped limiting frame. An inner control support rod for adjusting the inner control rod is hinged to the inner side of the lateral support plate.

[0014] The limiting groove is an arc-shaped groove, and a rolling sensor is installed inside the limiting groove.

[0015] The lateral support disc is staggered with the drive wheel.

[0016] The beneficial effects of this invention are:

[0017] (1) The continuous optical inspection machine for surface materials of high boron low alloy high speed steel rolls of the present invention improves the inspection efficiency by installing a high-precision inspection camera on the upper end of a vertical inspection frame and then performing optical inspection on the high boron low alloy high speed steel rolls on an electrically controlled rotating adjustment frame.

[0018] (2) A lateral flipping frame is hinged on both sides of the vertical detection frame. The high boron low alloy high speed steel roll is transported by the electrically controlled inclined conveyor belt inside the lateral flipping frame. Then, an electrically controlled rotating adjustment frame for switching the position of the high boron low alloy high speed steel roll is installed inside the vertical detection frame. The high boron low alloy high speed steel roll can be quickly introduced and separated, which is convenient for operation.

[0019] (3) The central drive wheel on the outside of the central assembly shaft tube can control the high boron low alloy high speed steel roll to rotate, thereby improving the range of optical detection. A rolling sensor is installed inside the limiting groove to monitor the number of rotations of the high boron low alloy high speed steel roll and ensure the integrity of the optical scan.

[0020] (4) Side-mounted lighting fixtures are installed on both sides of the top mounting through hole on the top surface of the vertical inspection frame. They can provide supplementary lighting to the surface of the high boron low alloy high speed steel roll from different directions, avoid shadows affecting the inspection, and improve the inspection accuracy.

[0021] (5) An electrically controlled arc-shaped limiting frame is provided on the outer side of the side support plate, located on one side of the limiting groove. It can control the limiting and separation of high boron low alloy high-speed steel rolls as needed, and facilitate the screening and separation of different test results. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the structure after the lateral flip frame is disassembled in this invention.

[0025] Figure 3 This is a schematic diagram of the electrically controlled rotating adjustment frame in this invention.

[0026] In the diagram: 1. Vertical detection frame; 2. High-precision detection camera; 3. Lateral flipping frame; 4. Electrically controlled inclined conveyor belt; 41. Drive wheel; 42. Driven wheel; 43. Support wheel; 44. Lateral conveyor belt; 45. External limit hook; 5. Electrically controlled rotation adjustment frame; 51. Centrally mounted assembly shaft tube; 52. Lateral support plate; 53. Limiting groove; 54. Centrally mounted drive wheel; 6. Side-mounted lighting lamp body; 7. Side-mounted pulley drive mechanism; 8. Arc-shaped limit frame; 9. Inner control rod; 10. Inner control support rod; 11. Rolling sensor. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] Figure 1 , Figure 2 and Figure 3The continuous optical inspection machine shown is used for the surface material of high boron low alloy high speed steel rolls. It includes a vertical inspection frame 1 and a high-precision inspection camera 2. The vertical inspection frame 1 is hinged to both sides with a lateral flipping frame 3. The lateral flipping frame 3 is equipped with an electrically controlled inclined conveyor belt 4 for conveying the high boron low alloy high speed steel rolls. The vertical inspection frame 1 is equipped with an electrically controlled rotating adjustment frame 5 for switching the position of the high boron low alloy high speed steel rolls. The upper end of the vertical inspection frame 1 has a plurality of top mounting through holes for mounting the high-precision inspection camera 2.

[0030] To increase the number of testing methods, instruments such as metallographic microscopes, laser confocal microscopes, and infrared thermal imaging can be installed on the top mounting through-hole for auxiliary testing.

[0031] In order to improve multi-directional top lighting and reduce shadows, side-mounted lighting fixtures 6 are installed on both sides of the top mounting through hole on the inner top surface of the vertical inspection frame 1.

[0032] To facilitate loading and unloading operations, the electrically controlled inclined conveyor belt 4 includes a drive wheel 41, a driven wheel 42, a support wheel 43, a side conveyor belt 44, and an external limiting hook 45 fixed to the outside of the side conveyor belt 44, all installed inside the side tilting frame 3.

[0033] The lateral conveyor belt 44 is fitted on the outside of the drive wheel 41, driven wheel 42, and support wheel 43. The drive wheel 41 drives the lateral conveyor belt 44 and the external limiting hook 45 on its outside to operate.

[0034] To facilitate rotation adjustment and drive control, the electrically controlled rotation adjustment frame 5 includes a central assembly shaft tube 51 installed at the lower end inside the vertical detection frame 1, lateral support plates 52 axially fixed at both ends of the outer side of the central assembly shaft tube 51, a limiting groove 53 opened on the outer arc surface of the lateral support plate 52, and a central drive wheel 54 movably fitted on the outer side of the central assembly shaft tube 51.

[0035] The high-boron low-alloy high-speed steel roll moves from the electrically controlled inclined conveyor belt 4 at the feeding end to the limiting groove 53 outside the lateral support plate 52. Then, the lateral support plate 52 adjusts its position. During the adjustment process, the high-boron low-alloy high-speed steel roll rotates by driving the central drive wheel 54, thereby cooperating with the high-precision inspection camera 2 to perform comprehensive inspection of the material on its surface.

[0036] To facilitate the movable assembly, the vertical inspection frame 1 has bottom mounting through holes on both sides, and the centrally located mounting shaft tube 51 passes through the bottom mounting through holes at both ends to movably assemble with the vertical inspection frame 1.

[0037] To facilitate the external drive, a side-mounted pulley drive mechanism 7 for driving the centrally mounted assembly shaft tube 51 is installed on the outer side of the vertical detection frame 1.

[0038] The side-mounted pulley drive mechanism 7 consists of a drive motor and a pulley assembly controlled by the drive motor. The pulley assembly consists of two pulleys and a drive belt, which drives the drive motor and the centrally mounted assembly shaft tube 51.

[0039] To accommodate lateral positioning, an arc-shaped positioning groove is provided on the outer side of the lateral support plate 52, located on one side of the positioning groove 53.

[0040] To accommodate the external limit, an arc-shaped limit frame 8 is slidably fitted inside the arc-shaped limit groove. An inner control rod 9 is located on the inner arc-shaped surface of the arc-shaped limit frame 8. An inner control support rod 10 for adjusting the inner control rod 9 is hinged to the inner side of the lateral support plate 52.

[0041] The inner control rod 9 is flipped by extending and retracting the inner control rod 10, and then the inner control rod 9 is used to drive the arc-shaped limiting frame 8 to slide inside the arc-shaped limiting groove, thereby controlling the opening and closing of the upper opening of the limiting groove 53.

[0042] When the test fails, the electrically controlled rotating adjustment frame 5 will drive the unqualified high boron low alloy high speed steel roll to the bottom, and then it will fall on the bottom guide rail for stratified screening; while the qualified high boron low alloy high speed steel roll is directly fed into the electrically controlled inclined conveyor belt 4 at the feeding end for normal feeding.

[0043] In order to simultaneously monitor the filling status of the upper limit groove 53 at different positions and the number of rotations of the internal high boron low alloy high speed steel roll, the upper limit groove 53 is an arc-shaped groove, and a rolling sensor 11 is installed on the inner side of the upper limit groove 53.

[0044] When the roller shafts on both sides of the high boron low alloy high speed steel roll are inserted into the limiting groove 53, they will press on the rolling sensor 11. The rolling sensor 11 is set in the arc-shaped groove in an elastic sliding manner, so that it can be adapted to rolls of different specifications and sizes.

[0045] The sliding installation method involves opening a groove on the inner side of the limiting groove 53, installing a compression spring inside the groove, and connecting the rolling sensor 11 to the compression spring by inserting it into the groove through sliders on both sides.

[0046] To increase the range of flipping angles and prevent them from interfering with each other, the lateral support plate 52 and the drive wheel 41 are arranged in a staggered manner.

[0047] Equipment working process

[0048] After the equipment is started, the equipment’s built-in control system automatically completes the self-inspection of each component: the side-flipping frame 3 adjusts the tilt angle through the hinge structure, with a preset angle range of 15°-45° to ensure that the height of the electric inclined conveyor belt 4 at the feeding end is compatible with the external feeding platform.

[0049] The electrically controlled inclined conveyor belt 4 is calibrated under no-load operation: the drive wheel 41 drives the side conveyor belt 44 to run at a preset speed of 5-10m / min, which can be adjusted according to the testing efficiency requirements. The spacing of the external limit hooks 45 matches the length of the roll, ensuring that each external limit hook 45 can accurately engage the roll shaft head.

[0050] The electrically controlled rotating adjustment frame 5 is reset: the side-mounted belt pulley drive mechanism 7 drives the centrally mounted assembly shaft tube 51 to rotate, so that the limiting groove 53 of the side support plate 52 is aligned with the discharge port of the electrically controlled inclined conveyor belt 4 at the feeding end; the arc-shaped limiting frame 8 is in the "closed" state, the inner control support rod 10 extends, and the arc-shaped limiting frame 8 blocks the upper opening of the limiting groove 53 to prevent foreign objects from falling in;

[0051] The high-precision inspection camera 2 is started and completes focal length calibration. For the needs of roll surface inspection, the preset focal length range is 50-150mm. The side-mounted lighting body 6 is turned on and the brightness is adjusted to ensure that the light evenly covers the inspection area.

[0052] The operator places the high boron low alloy high speed steel roll to be tested on the side conveyor belt 44 of the electric inclined conveyor belt 4 at the feeding end, and the shaft ends at both ends of the roll are inserted into the slots of the external limiting hooks 45.

[0053] The drive wheel 41 drives the lateral conveyor belt 44 to rotate, which in turn drives the rollers to be conveyed into the vertical detection frame 1 along an inclined path. During the conveying process, the support structure of the lateral flipping frame 3 remains stable to prevent the rollers from shifting due to vibration. If the rollers are large, the support wheel 43 can provide additional support to prevent the lateral conveyor belt 44 from deforming.

[0054] When the roll is conveyed into the vertical detection frame 1 and approaches the side support plate 52, the control system triggers the electrically controlled inclined conveyor belt 4 to decelerate, ensuring that the roll shaft head is smoothly inserted into the limiting groove 53 of the side support plate 52.

[0055] After the roll shaft head is inserted into the limiting groove 53, the rolling sensor 11 inside the squeezing limiting groove 53 adapts to the diameter of the shaft head through the elastic structure of "slide groove + squeezing spring" and sends a "positioning completed" signal to the control system.

[0056] After receiving the signal, the control system stops the operation of the electrically controlled inclined conveyor belt 4. At the same time, the inner control support rod 10 extends, causing the arc-shaped limit frame 8 to slide along the arc-shaped limit groove, closing the upper opening of the limit groove 53, and fixing the roller in the limit groove 53 to prevent displacement during subsequent rotation detection.

[0057] The side-mounted pulley drive mechanism 7 is started, driving the centrally mounted assembly shaft tube 51 to rotate slowly, which in turn drives the side support plate 52 and the roller to rotate to the inspection station;

[0058] The centrally mounted drive wheel 54 starts, and through friction, it drives the roll to rotate at a constant speed around its own axis.

[0059] High-precision inspection camera 2 begins scanning: continuously imaging the boride distribution, carbide morphology, alloy element enrichment areas, and defects such as micro-cracks and wear marks on the roll surface;

[0060] The side-mounted lighting unit 6 remains on, with light illuminating the roll surface obliquely from both sides of the top mounting through hole, eliminating shadows caused by the roll's arc surface and ensuring that the high-precision inspection camera 2 can clearly capture images of each inspection point.

[0061] The rolling sensor 11 records the number of rotations and rotation speed of the roll in real time and transmits the data to the control system in real time. If the rotation speed is lower than the preset value, the control system will increase the contact pressure of the central drive wheel 54 to ensure the rotation speed is stable.

[0062] The control system presets the required number of rotations based on the length and diameter of the roll; when the number of rotations recorded by the rolling sensor 11 reaches the preset value, it sends a "detection complete" signal, the central drive wheel 54 stops running, and the roll rotation terminates.

[0063] If any abnormality occurs during the testing process, such as blurred image from the high-precision detection camera 2 or no signal from the rolling sensor 11, the control system will trigger an alarm and suspend the testing process. The testing will be restarted after the operator has investigated the fault.

[0064] After receiving the test results, the control system drives the side-mounted pulley drive mechanism 7 to rotate the central assembly shaft tube 51 again, causing the side support plate 52 and the rolls to switch to the corresponding workstation.

[0065] If the result is "qualified": the lateral support plate 52 rotates to the top of the feed inlet of the electrically controlled inclined conveyor belt 4 at the feeding end, the inner control support rod 10 retracts, driving the arc-shaped limit frame 8 to slide and open the upper opening of the limit groove 53; then the roller falls into the outer limit hook 45 of the electrically controlled inclined conveyor belt 4 at the feeding end under the action of gravity, and then the electrically controlled inclined conveyor belt 4 starts to transport the qualified roller to the outer feeding platform;

[0066] If the result is "unqualified": the lateral support plate 52 rotates to the top of the unqualified product guide rail at the bottom of the vertical detection frame 1, the inner control support rod 10 retracts, the limiting groove 53 is opened, and at the same time the lateral flipping frame 3 located at the feeding end flips down or downward to form misalignment, the roller falls into the guide rail and slides along the guide rail to the outside for collection.

[0067] After screening, the arc-shaped limiting frame 8 is reset, and the lateral support plate 52 rotates back to the loading station to prepare for the inspection of the next roll, thus achieving continuous operation.

[0068] After the qualified rolls are conveyed to the unloading platform by the electrically controlled inclined conveyor belt 4 at the unloading end, the operator removes the rolls for subsequent marking or processing.

[0069] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A continuous optical detection machine applied to the surface material of high-boron low-alloy high-speed steel roller, comprising a vertical detection frame (1) and a high-precision detection camera (2), characterized in that: The vertical detection frame (1) is hinged with a lateral overturning frame (3) on both sides, the inside of the lateral overturning frame (3) is provided with an electric control type inclined conveying belt (4) for conveying high-boron low-alloy high-speed steel rollers, the inside of the vertical detection frame (1) is provided with an electric control type rotating adjusting frame (5) for switching the position of the high-boron low-alloy high-speed steel roller, and a plurality of top-mounted assembly through holes are formed in the upper end of the vertical detection frame (1) for mounting high-precision detection cameras (2); The electric control type inclined conveying belt (4) comprises a driving wheel (41), a driven wheel (42), a supporting wheel (43), a lateral conveying belt (44) and an external limiting hook (45) fixed outside the lateral conveying belt (44), which are installed inside the lateral overturning frame (3); The electric control type rotating adjusting frame (5) comprises a middle-mounted assembly shaft pipe (51) installed at the lower end inside the vertical detection frame (1), a lateral support disc (52) axially fixed at both ends outside the middle-mounted assembly shaft pipe (51), a limiting groove (53) formed on the arc surface outside the lateral support disc (52) and a middle drive wheel (54) movably sleeved outside the middle-mounted assembly shaft pipe (51); An arc limiting groove is formed in the arc surface outside the lateral support disc (52) on one side of the limiting groove (53); An arc limiting frame (8) is slidably assembled inside the arc limiting groove, an inside control rod (9) is arranged on the inside arc surface of the arc limiting frame (8), and an inside control support rod (10) is hinged on the inside surface of the lateral support disc (52) for adjusting the inside control rod (9).

2. The continuous optical inspection machine for high boron low alloy high speed steel roll surface material according to claim 1, characterized in that: A side-hung illuminating lamp body (6) is mounted on the inside top surface of the vertical detection frame (1) on both sides of the top-mounted assembly through hole.

3. The continuous optical inspection machine for high boron low alloy high speed steel roll surface material according to claim 1, characterized in that: Bottom side assembly through holes are formed on both sides of the vertical detection frame (1), and the middle-mounted assembly shaft pipe (51) penetrates through the bottom side assembly through holes and is movably assembled with the vertical detection frame (1).

4. The continuous optical inspection machine for high boron low alloy high speed steel roll surface material according to claim 1, characterized in that: A side-hung belt pulley driving mechanism (7) is mounted on the outside surface of the vertical detection frame (1) for driving the middle-mounted assembly shaft pipe (51).

5. The continuous optical inspection machine for high boron low alloy high speed steel roll surface material according to claim 4, characterized in that: The limiting groove (53) is an arc-shaped groove, and a rolling sensor (11) is mounted inside the limiting groove (53).

6. The continuous optical inspection machine for high boron low alloy high speed steel roll surface material according to claim 1, characterized in that: The lateral support disc (52) and the driving wheel (41) are arranged in a staggered manner.

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