Shape detection structure for rolling part

Abstract

The utility model relates to a shape detection structure for a rolling part, which belongs to the technical field of detection and comprises a roller conveyor, a scanning device, a thickness measuring device, a stop-in-place detection sensor group and a speed reduction-in-place detection sensor group, the roller conveyor is provided with the rolling part, one side of the roller conveyor is provided with the scanning device and the thickness measuring device, and the other side of the roller conveyor is provided with the speed reduction-in-place detection sensor group. A stop in-place detection sensor set and a speed reduction in-place detection sensor set are further arranged on the roller conveyor and located below the rolling part, the scanning device comprises a support, a scanner moving device and a scanner, the support is arranged on one side of the roller conveyor, the scanner moving device is arranged on the support, the scanner is movably arranged on the scanner moving device, and the scanner is arranged on the scanner moving device. The scanner is opposite to the rolling part; a plurality of vertically-arranged limiting idler wheels are evenly distributed in the two sides of the roller conveyor in the length direction of the roller conveyor respectively. The detection structure is used for measuring the flatness of the rolling part and simultaneously measuring the size, and is convenient to use.

Description

Technical Field

[0001] The utility model relates to an appearance detection structure, in particular to a rolling part appearance detection structure, and belongs to the technical field of detection. Background Art

[0002] Rolled parts are a kind of high-performance, high-wear-resistant and high-temperature-resistant engineering ceramic products. Rolled parts have many superior properties, including high hardness, high wear resistance, corrosion resistance, high pressure resistance, high temperature resistance, acid and alkali resistance, etc. Due to its excellent performance, rolled parts have been widely used in various industries, including the following aspects: In the field of iron and steel metallurgy, rolled parts are used to manufacture important equipment such as hot rolling mills, cold rolling mills, steel rolling mills and continuous casting machines; in the chemical industry, rolled parts are mainly used in control valves and pump machinery for various fluids to ensure high sealing and high wear resistance of the equipment; in the field of food manufacturing, rolled parts are mainly used in mixers, filter presses, centrifuges and other equipment to ensure the high efficiency of the equipment; in the field of printing paper manufacturing, rolled parts are mainly used in important equipment such as printing presses, calenders and dryers; in short, with its unique properties and wide application fields, rolled parts have become an indispensable new material in modern industry, constantly promoting the development of various fields.

[0003] Currently, there are two structures of rolled parts products, P-shaped and Japanese-shaped, with dimensions: length 1200mm-1900mm, width 120mm, thickness 60mm. Manual inspection of flatness, verticality and length has low measurement efficiency and is difficult to meet production requirements. Therefore, developing a rolled parts appearance detection device that can overcome the above defects has become a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the disadvantages of the prior art and provide a roll-pressed part shape detection structure, which is used for measuring the flatness of the roll-pressed part and can also complete the size measurement at the same time and is easy to use.

[0005] In order to solve the above technical problems, the utility model provides a roller pressure part shape detection structure, including a roller conveyor, a scanning device, a thickness measuring device, a stop position detection sensor group and a deceleration position detection sensor group. The roller conveyor is provided with a roller pressure part, and a scanning device and a thickness measuring device are provided on one side of the roller conveyor along the length direction of the roller conveyor. The roller conveyor is also provided with a stop position detection sensor group and a deceleration position detection sensor group below the roller pressure part, wherein:

[0006] The scanning device includes a bracket, a scanner moving device and a scanner. The bracket is arranged on one side of the roller conveyor, the scanner moving device is arranged on the bracket, the scanner moving device is located directly above the roller conveyor, and the scanner is movably arranged on the scanner moving device, and the scanner is directly opposite to the roller pressure part; a number of vertically arranged limit rollers are evenly distributed on both sides of the roller conveyor along the length direction of the roller conveyor.

[0007] The technical solution further defined in the utility model is:

[0008] Furthermore, in the aforementioned rolled part shape detection structure, the scanner moving device includes a base plate, a motor, a screw and a moving block. A slide rail is provided on the base plate, a screw is provided on the base plate through a screw seat, a moving block is provided on the screw, a scanner is provided on one side of the moving slider, and a motor is provided at one end of the base plate. The motor provides power to the screw, and the screw drives the moving block to move on the slide rail.

[0009] Technical effect: the utility model adopts a screw rod to drive the moving block, and the belt drives the scanner to move left and right, which can fully detect the rolled parts without manual inspection and has high efficiency.

[0010] In the aforementioned rolled part shape detection structure, the thickness measuring device includes a thickness measuring sensor, a support frame and a telescopic rod, one end of the telescopic rod is connected to the thickness measuring sensor, and the other end is connected to the support frame, and the telescopic rod and the support frame are vertically arranged.

[0011] Technical effect: the thickness sensor is set by a telescopic rod, which makes it easy to extend the thickness sensor closer to the rolled part when measuring the thickness. After the thickness measurement is completed, the sensor retracts, which can accurately measure and protect the sensor, extending its service life.

[0012] In the aforementioned roller pressed part appearance detection structure, the thickness measuring device is located on one side of the roller conveyor, 30-40 cm away from the roller conveyor discharge port.

[0013] In the aforementioned roller pressed part shape detection structure, the stop position detection sensor group (6) is arranged at the discharge port of the roller conveyor (2), and the deceleration position detection sensor group (7) is located on the roller conveyor at a distance of 200 mm from the stop position detection sensor group (6).

[0014] In the aforementioned rolled part shape detection structure, the scanner is a laser 3D camera.

[0015] In the aforementioned roller-pressed part shape detection structure, the roller conveyor is driven by an electric motor.

[0016] Technical effect: the use of a powered roller conveyor makes it easy to control its speed and facilitates the conveying of the rolled parts to the position to be tested for accurate measurement.

[0017] The aforementioned rolled part shape detection structure also includes a PLC, which is respectively connected to the scanner, motor, thickness sensor, cylinder in the telescopic rod, motor in the roller conveyor, stop position detection sensor group and deceleration position detection sensor group, and the PLC is connected to the host via a data cable.

[0018] The beneficial effects of the utility model are:

[0019] The utility model places a laser 3D camera just above the rolled part for contour scanning, which is used to detect the size measurement and surface flatness detection of the rolled part. The laser triangulation sensor of the 3D camera projects the laser pattern from the sensor onto the surface of the rolled part, so that the camera images the surface of the rolled part. The processor in the 3D camera determines the position of the imaging laser on the camera head and calculates the distance from the sensor to the surface, highlighting the depth information, which is beneficial to the flatness measurement and can complete the size measurement at the same time.

[0020] The utility model provides a limiting roller on the roller conveyor to prevent the roller-pressed part from deviating from the detection position. The limiting roller can well limit the roller-pressed part for measurement, and the roller is in rolling contact with the roller-pressed part to reduce friction, avoid wear and ensure its quality.

[0021] The scanner of the utility model can move left and right under the belt of the scanner moving device, so as to complete the scanning of the entire length of the rolling piece, and the detection is more complete and efficient.

[0022] The utility model adopts a stop-in-place detection sensor group and a deceleration-in-place detection sensor group, the function of which is to first decelerate the rolling part and then stop it at the place where detection is required, so as to maintain the accuracy of the position and ensure the accuracy of detection.

[0023] The utility model also involves a PLC, which is used for automatic and manual logic control, signal processing and interaction of the equipment. The start, speed control and stop of the roller-pressed part are controlled by deceleration and stop sensors, so that the roller-pressed part can be stopped accurately until the detection, and the start and scanning of the camera and thickness measurement are controlled, thereby improving the degree of automation, increasing efficiency and reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the appearance of a rolling part according to an embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the appearance detection structure of the rolling part in the embodiment of the utility model;

[0026] Figure 3 for Figure 1 A schematic diagram of the structure of the scanner moving device;

[0027] In the figure: 1-roller, 2-roller conveyor, 3-scanner moving device, 31-bottom plate, 32-motor, 33-screw, 34-moving block, 4-scanner, 5-thickness measuring device, 6-stop in place detection sensor group, 7-deceleration in place detection sensor group, 8-limit roller, 9-bracket. DETAILED DESCRIPTION Example 1

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] This embodiment provides a rolling part shape detection structure, the structure is as follows Figure 2 As shown, it includes a roller conveyor 2, a scanning device, a thickness measuring device 5, a stop position detection sensor group 6 and a deceleration position detection sensor group 7. The roller conveyor 2 is driven by a motor. A roller pressing member 1 is provided on the roller conveyor 2. The structure of the roller pressing member 1 is as shown in FIG. Figure 1 As shown, a scanning device and a thickness measuring device 5 are provided on one side of the roller conveyor 2 along the length direction of the roller conveyor 2, and a stop position detection sensor group 6 and a deceleration position detection sensor group 7 are also provided on the roller conveyor 2 below the roller pressing member 1, wherein:

[0030] The scanning device includes a bracket 9, a scanner moving device 3 and a scanner 4 laser 3D camera. The bracket 9 is arranged on one side of the roller conveyor 2. The scanner moving device 3 is arranged on the bracket. The scanner moving device 3 is located directly above the roller conveyor 2. The scanner 4 is movably arranged on the scanner moving device 3. The scanner 4 is directly opposite to the roller pressing member.

[0031] A plurality of vertically arranged limiting rollers 8 are evenly distributed on both sides of the roller conveyor 2 along the length direction of the roller conveyor 2 .

[0032] In this embodiment, the structure is as follows Figure 3 As shown, the scanner moving device 3 includes a base plate 31, a motor 32, a screw rod 33 and a moving block 34. A slide rail is provided on the base plate 31. A screw rod 33 is provided on the base plate 31 through a screw rod seat. A moving block 34 is provided on the screw rod. A scanner 4 is provided on one side of the moving slider. A motor 32 is provided at one end of the base plate 31. The motor 32 provides power to the screw rod 33. The screw rod 33 drives the moving block 34 to move on the slide rail.

[0033] In this embodiment, the thickness measuring device 5 is located on one side of the roller conveyor 2, 30-40 cm away from the discharge port of the roller conveyor 2; the stop position detection sensor group 6 is arranged at the discharge port of the roller conveyor 2, and the deceleration position detection sensor group 7 is located on the roller conveyor, 200 mm away from the stop position detection sensor group.

[0034] In this embodiment, the thickness measuring device 5 includes a thickness sensor, a support frame and a telescopic rod. One end of the telescopic rod is connected to the thickness sensor, and the other end is connected to the support frame. The telescopic rod and the support frame are vertically arranged.

[0035] In this embodiment, a PLC is also included, which is respectively connected to the scanner 4, the motor, the thickness sensor, the cylinder in the telescopic rod, the motor in the roller conveyor 2, the stop position detection sensor group 6 and the deceleration position detection sensor group 7, and the PLC is connected to the host through a data cable.

[0036] When implementing it specifically,

[0037] (1) The rolled parts are transported to the measuring station via rollers;

[0038] (2) After the deceleration detection sensor senses the roller-pressed part, the conveying roller decelerates and slowly reduces the conveying speed of the roller-pressed part;

[0039] (3) After the stop position detection sensor senses the roller pressure part, the conveyor roller stops conveying;

[0040] (4) The thickness measuring device performs thickness measurement, and the sensor is retracted after the thickness measurement is completed;

[0041] (5) The profile scanner moves from the starting point to complete the scanning of the entire length of the rolled part;

[0042] (6) The profile scanner returns to its original position, and the conveyor roller conveys the rolled part downstream;

[0043] Equipment Beat

[0044] Calculated based on the workpiece length of 1900mm, a complete inspection cycle is from the time the head of the rolled part enters the inspection station to the time the tail of the rolled part exits the inspection station.

[0045] (1) The rolled part is transported from the entrance to the detection position and stops: 6s;

[0046] (2) Thickness measurement and retraction: 2s;

[0047] (3) Visual inspection: 5s;

[0048] (4) Rolled parts are transported out of the inspection position: 3s

[0049] (5) Total signal interaction time: 3s

[0050] (6) Circulation…

[0051] The detection cycle is about 19s.

[0052] Flatness: The structure is scanned and inspected with a 3D camera. The two acquired planes are fitted separately. The shooting points in the image are compared with the fitted planes to determine whether they meet the requirements.

[0053] Verticality: Use the point cloud captured by the flatness, the angle between the upper surface and the intersection of the cross section and side lines to determine whether it meets the requirements.

[0054] Length: Take several points at both ends of the upper surface of the two cameras to calculate the total length and then find the average.

[0055] Height detection: Use three displacement sensors placed at the end points of the material. When the object is in the test stage, measure the height values ​​of the three points respectively.

[0056] A laser 3D camera is placed directly above the rolled part of the utility model for contour scanning, which is used to detect the size measurement and surface flatness detection of the rolled part. The laser triangulation sensor of the 3D camera projects the laser pattern from the sensor onto the surface of the rolled part, so that the camera images the surface of the rolled part. The processor determines the position of the imaging laser on the camera and calculates the distance from the sensor to the surface. The depth information is highlighted, which is conducive to flatness measurement and can complete the size measurement at the same time, saving time and improving efficiency.

[0057] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.

Claims

1. A rolled part shape detection structure, characterized in that: The invention comprises a roller conveyor (2), a scanning device, a thickness measuring device (5), a stop position detection sensor group (6) and a deceleration position detection sensor group (7), wherein the roller conveyor (2) is provided with a roller pressing part (1), and the scanning device and the thickness measuring device (5) are provided on one side of the roller conveyor (2) along the length direction of the roller conveyor (2), and the stop position detection sensor group (6) and the deceleration position detection sensor group (7) are also provided on the roller conveyor (2) below the roller pressing part (1), wherein: The scanning device comprises a bracket (9), a scanner moving device (3) and a scanner (4), wherein the bracket (9) is arranged on one side of the roller conveyor (2), the scanner moving device (3) is arranged on the bracket, the scanner moving device (3) is located directly above the roller conveyor (2), the scanner (4) is movably arranged on the scanner moving device (3), and the scanner (4) is directly opposite to the roller pressing member; A plurality of vertically arranged limiting rollers (8) are evenly distributed on both sides of the roller conveyor (2) along the length direction of the roller conveyor (2).

2. The rolled part shape detection structure according to claim 1, characterized in that: The scanner moving device (3) comprises a base plate (31), a motor (32), a screw rod (33) and a moving block (34); a slide rail is provided on the base plate (31); the screw rod (33) is provided on the base plate (31) via a screw rod seat; the moving block (34) is provided on the screw rod; the scanner (4) is provided on one side of the moving block; the motor (32) is provided at one end of the base plate (31); the motor (32) supplies power to the screw rod (33); and the screw rod (33) drives the moving block (34) to move on the slide rail.

3. The rolled part shape detection structure according to claim 1, characterized in that: The thickness measuring device (5) comprises a thickness measuring sensor, a support frame and a telescopic rod, one end of the telescopic rod is connected to the thickness measuring sensor, and the other end of the telescopic rod is connected to the support frame, and the telescopic rod and the support frame are arranged vertically.

4. The rolled part shape detection structure according to claim 1, characterized in that: The thickness measuring device (5) is located on one side of the roller conveyor (2) at a distance of 30-40 cm from the discharge port of the roller conveyor (2).

5. The rolled part shape detection structure according to claim 1, characterized in that: The stop position detection sensor group (6) is arranged at the discharge port of the roller conveyor (2), and the deceleration position detection sensor group (7) is located on the roller conveyor at a distance of 200 mm from the stop position detection sensor group (6).

6. The rolled part shape detection structure according to claim 1, characterized in that: The scanner (4) is a laser 3D camera.

7. The rolled part shape detection structure according to claim 1, characterized in that: The roller conveyor (2) is driven by an electric motor.

8. The rolled part shape detection structure according to claim 1, characterized in that: It also includes a PLC, which is respectively connected to the scanner (4), the motor, the thickness sensor, the cylinder in the telescopic rod, the motor in the roller conveyor (2), the stop position detection sensor group (6) and the deceleration position detection sensor group (7), and the PLC is connected to the host via a data line.

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