An adjustable laser scanning device and a detection method using the same

Abstract

This invention provides an adjustable laser scanning device and a detection method using the device. The fixed bracket includes a connecting seat and a square steel. One side of the square steel has an adapter plate mounting hole. The adapter plate includes a vertical adapter plate and a horizontal adapter plate. The vertical adapter plate has a U-shaped groove. Connecting bolts pass through the U-shaped groove and are screwed into the adapter plate mounting hole to connect the vertical adapter plate and the fixed bracket. The horizontal adapter plate, the upper mounting plate, and the main mounting plate are connected in sequence. The lower part of the main mounting plate has an arc groove along the circumference. The sensor connecting plate has a sensor mounting hole along the circumference. Mounting bolts are passed through the arc groove and screwed into the sensor mounting hole to connect the main mounting plate and the sensor connecting plate. The sensor connecting plate is fixedly connected to the laser scanning sensor. The laser scanning sensor in this invention is adjustable in height and angle. The height and angle of the laser scanning are designed for coarse and fine adjustment, which broadens the application range of the sensor and can meet the detection requirements of different scenarios.

Description

Technical Field

[0001] This invention relates to the field of automated production line technology, and in particular to an adjustable laser scanning device and a detection method using the device. Background Technology

[0002] Laser scanning sensors have a wide range of applications in various fields. In industrial manufacturing, they can help improve product design and optimize quality inspection processes. In automated production, they can be used for signal transmission and feedback.

[0003] Existing laser scanning sensors have achieved non-contact measurement, avoiding damage and errors caused by contact with objects. However, most existing sensors are fixed and cannot be adjusted after installation, limiting their application scenarios and failing to meet the functions of flexible production lines, which has restricted their development in the industry.

[0004] Therefore, how to design sensor installation devices and arrange sensors in a cost-effective and efficient manner is a topic worthy of in-depth research. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustable laser scanning device and a detection method using the device.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: An adjustable laser scanning device is characterized by comprising a fixed bracket, an adapter plate, an upper mounting plate, a main mounting plate, a sensor connection plate, and a laser scanning sensor. The fixed bracket includes an integrally formed connecting seat and a hollow square steel. The connecting seat is fixedly connected to an external base. One side of the square steel has several adapter plate mounting holes. The adapter plate has an L-shaped structure and includes a vertical adapter plate and a horizontal adapter plate. The lower and upper parts of the vertical adapter plate each have a U-shaped groove, and the two U-shaped grooves are aligned vertically. Connecting bolts are passed through the U-shaped grooves and screwed into the adapter plate mounting holes to connect the vertical adapter plate and the fixed bracket. The upper end of the upper mounting plate is connected to the lower end of the horizontal adapter plate. The main mounting plate is fixedly connected to the lower end of the upper mounting plate. The lower part of the main mounting plate is fan-shaped. A first positioning hole is provided in the center of the lower part of the main mounting plate, and a second positioning hole is provided in the center of the sensor connecting plate. Bolts are screwed into the first positioning hole and the second positioning hole to position the main mounting plate and the sensor connecting plate. The lower part of the main mounting plate is provided with several arc grooves along a circumference. The sensor connecting plate is provided with several evenly distributed sensor mounting holes along a circumference. The arc grooves are matched with the sensor mounting holes. Mounting bolts are screwed through the arc grooves into the sensor mounting holes to connect the main mounting plate and the sensor connecting plate. The sensor connecting plate is fixedly connected to the laser scanning sensor.

[0007] Furthermore, the mounting holes of the two adjacent adapter plates have two spacing settings: the spacing of the mounting holes of the upper adapter plate is 1 / 10 of the minimum detection distance of the laser scanning sensor, and the spacing of the mounting holes of the lower adapter plate is 1 / 25 of the minimum detection distance of the laser scanning sensor.

[0008] Furthermore, the length of the U-shaped groove is 2 / 3 of the spacing between the mounting holes on the lower adapter plate.

[0009] Furthermore, a horizontal anti-vibration pad is provided between the horizontal adapter plate and the upper mounting plate.

[0010] Furthermore, the upper mounting plate is connected to one side of the main mounting plate via an L-shaped vertical shock-absorbing plate. The horizontal part of the vertical shock-absorbing plate is fixedly connected to the upper mounting plate via fixing bolts, and the vertical part of the vertical shock-absorbing plate is fastened to the main mounting plate via adjustable tightening bolts.

[0011] Furthermore, the vertical shock-absorbing plate includes a shock-absorbing plate body, with inner ear rings bent downwards on the left and right sides of the shock-absorbing plate body, the shock-absorbing plate body being fixedly connected to the upper mounting plate by fixing bolts, the inner ear rings passing through the limiting holes of the upper mounting plate, and outer ear rings extending backwards on the left and right sides of the upper end of the main mounting plate, the outer ear rings being connected to the inner ear rings by ear ring bolts.

[0012] Furthermore, the front side of the shock-absorbing plate body is bent downward to provide a front ear ring, which is a closed panel. The front ear ring is fastened to the main mounting plate by an adjustable tightening bolt.

[0013] A detection method using an adjustable laser scanning device, characterized by comprising the following steps: Step S1) Fix the laser scanning sensor on the sensor connection plate; Step S2) Position the first positioning hole of the main mounting plate and the second positioning hole in the center of the sensor connection plate with bolts, and screw the mounting bolts into the sensor mounting holes through the arc grooves; Step S3) Fix both ends of the vertical vibration damping plate to the main mounting plate and the adapter plate respectively, and the adjustable tightening bolt passes through the main mounting plate to limit the vertical vibration damping plate; Step S4) Select a suitable adapter plate mounting hole and screw the connecting bolt into the adapter plate mounting hole through the U-shaped groove; Step S5) Precisely adjust the relative positions of the connecting bolts and the U-shaped groove, and tighten the connecting bolts to precisely adjust the height of the adapter plate and the main mounting plate; Step S6) Arrange the installation positions of the laser scanning sensors irregularly according to the detection range required by the actual workstation and the detection range of the laser scanning sensor itself.

[0014] The laser scanning sensor in this invention has adjustable height and angle, and both the height and angle of the laser scanning are designed for coarse and fine adjustment, which broadens the application range of the sensor and can meet the detection requirements of different scenarios. The laser scanning sensor in this invention has two height adjustment levels, which can adjust the installation height without removing the sensor fixing bracket, so as to realize the reuse of sensor detection on flexible production lines and reduce labor and bracket costs. The laser scanning device of this invention is equipped with shockproof and deformation-resistant mechanisms to ensure the accuracy and service life of the laser scanning sensor. Attached Figure Description

[0015] Figure 1 This is a front view of the device of the present invention; Figure 2 This is an axonal structural diagram of the device of the present invention; Figure 3 This is a structural diagram of the vertical shock-absorbing plate of the present invention; Figure 4 This is another installation structure diagram of the vertical shock-absorbing plate of the present invention; Figure 5 This is a structural diagram of the vertical shock-absorbing plate of the present invention; Figure 6 This is a structural diagram of the sensor connection plate of the present invention; Figure 7 This is a front view of the irregularly arranged laser scanning sensors of the present invention; Figure 8 This is a side view of the irregularly arranged laser scanning sensors of the present invention; Figure 9 This is an axonometric view of the irregularly arranged laser scanning sensor of the present invention.

[0016] Figure label: 1. Fixed bracket, 2. Adapter plate, 3. Horizontal anti-vibration pad, 4. Upper mounting plate, 5. Vertical anti-vibration plate. 6 Main mounting plate, 7 Sensor connection plate, 8 Laser scanning sensor, 9 Adjustable top tightening bolt, 10 Connecting bolt, 11 Mounting bolt, 12 Base, 13 Fixing bolt, 14 Ear bolt, 101 Connector, 102 Square Steel, 103 Adapter Plate Mounting Holes 201 Vertical adapter plate, 202 Horizontal adapter plate, 203 U-shaped channel 401 limiting hole, 501 Shockproof plate body, 502 Inner earring, 503 Front earring, 601 First positioning hole, 602 Arc groove, 603 Outer earring, 701 Second positioning hole, 702 Sensor mounting hole. Detailed Implementation

[0017] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] This invention discloses an adjustable laser scanning device, such as... Figure 1 As shown, it includes a fixed bracket 1, an adapter plate 2, an upper mounting plate 4, a main mounting plate 6, a sensor connection plate 7, and a laser scanning sensor 8. The sensor connection plate 7 is fixedly connected to the laser scanning sensor 8. The fixed bracket 1 includes an upper and lower integrally formed connecting seat 101 and a hollow square steel 102. The connecting seat 101 is fixedly connected to the external base 12. A plurality of adapter plate mounting holes 103 are provided on one side of the square steel 102.

[0019] The adapter plate 2 has an L-shaped structure and includes a vertical adapter plate 201 and a horizontal adapter plate 202. The lower and upper parts of the vertical adapter plate 201 are respectively provided with a U-shaped groove 203. The two U-shaped grooves 203 are in a straight line along the vertical direction. The connecting bolt 10 is passed through the U-shaped groove 203 and screwed into the adapter plate mounting hole 103 to connect the vertical adapter plate 201 and the fixed bracket 1.

[0020] The two adjacent adapter plate mounting holes 103 have two spacing settings. The spacing of the upper adapter plate mounting holes 103 is 1 / 10 of the minimum detection distance of the laser scanning sensor 8, and the spacing of the lower adapter plate mounting holes 103 is 1 / 25 of the minimum detection distance of the laser scanning sensor 8. The length of the U-shaped groove 203 is 2 / 3 of the spacing of the lower adapter plate mounting holes 103. Select the appropriate installation height of the adapter plate 2 according to the actual site conditions to ensure that all height positions are fully covered when finely adjusting the height.

[0021] like Figure 2 As shown, the upper end of the upper mounting plate 4 is connected to the lower end of the horizontal adapter plate 202, and the upper end of the main mounting plate 6 is fixedly connected to the lower end of the upper mounting plate 4. The lower part of the main mounting plate 6 is fan-shaped, and a first positioning hole 601 is provided in the center of the lower part of the main mounting plate 6. A second positioning hole 701 is provided in the center of the sensor connecting plate 7. The bolts are screwed into the first positioning hole 601 and the second positioning hole 701 to position the main mounting plate 6 and the sensor connecting plate 7. At this time, the main mounting plate 6 and the sensor connecting plate 7 can only rotate relative to each other.

[0022] The lower part of the main mounting plate 6 is provided with several arc grooves 602 along a circumference, preferably three arc grooves 602, each arc groove 602 being 30°. Figure 6As shown, the sensor connecting plate 7 has a plurality of sensor mounting holes 702 evenly distributed along a circumference, preferably 12 sensor mounting holes 702. Three arc grooves 602 are provided to cooperate with the sensor mounting holes 702. Three mounting bolts 11 are respectively passed through the three arc grooves 602 and screwed into the sensor mounting holes 702 to connect the main mounting plate 6 and the sensor connecting plate 7. The angle of the mounting bolts 11 can be adjusted within 30°.

[0023] A horizontal anti-vibration pad 3 is provided between the horizontal adapter plate 202 and the upper mounting plate 4 to absorb vibrations caused by the excessive length of the fixed bracket 1 or the laser scanning sensor 8 during operation.

[0024] The upper mounting plate 4 is connected to the main mounting plate 6 on one side by an L-shaped vertical shock-absorbing plate 5. The horizontal part of the vertical shock-absorbing plate 5 is fixedly connected to the upper mounting plate 4 by fixing bolts 13, and the vertical part of the vertical shock-absorbing plate 5 is fastened to the main mounting plate 6 by adjustable tightening bolts 9.

[0025] like Figure 3 and Figure 4 As shown, the vertical shock-absorbing plate 5 includes a shock-absorbing plate body 501. The left and right sides of the shock-absorbing plate body 501 are respectively bent downward to provide inner ear rings 502. The shock-absorbing plate body 501 is fixedly connected to the upper mounting plate 4 by fixing bolts 13. The inner ear rings 502 pass through the limiting holes 401 of the upper mounting plate 4. The left and right sides of the upper end of the main mounting plate 6 are provided with outer ear rings 603 extending backward. The outer ear rings 603 and the inner ear rings 502 are connected by ear ring bolts 14.

[0026] like Figure 5 As shown, the front side of the shock-absorbing plate body 501 is bent downward to provide a front ear ring 503. The front ear ring 503 is a closed panel. The front ear ring 503 is fastened to the main mounting plate 6 by an adjustable tightening bolt 9. The vertical shock-absorbing plate 5 has an additional fully enclosed front ear ring 503 in the vertical direction compared to the traditional shock-absorbing plate. The fully enclosed front ear ring 503 releases stress during processing and production, while ensuring the rigidity of the device itself. Together with the adjustable tightening bolt 9 on the main mounting plate 6, it counteracts the radial vibration and slippage when the device moves at high speed.

[0027] The present invention also discloses a detection method using an adjustable laser scanning device, comprising the following steps: Step S1) Fix the laser scanning sensor 8 onto the sensor connection plate 7; Step S2) Position the first positioning hole 601 of the main mounting plate 6 and the second positioning hole 701 in the center of the sensor connecting plate 7 with bolts, and screw the mounting bolt 11 into the sensor mounting hole 702 through the arc groove 602. Step S3) Fix both ends of the vertical shock absorber 5 to the main mounting plate 6 and the adapter plate 2 respectively, and the adjustable tightening bolt 9 passes through the main mounting plate 6 to limit the vertical shock absorber 5. Step S4) Select a suitable adapter plate mounting hole 103 and screw the connecting bolt 10 into the adapter plate mounting hole 103 through the U-shaped groove 203; Step S5) Precisely adjust the relative position of the connecting bolt 10 and the U-shaped groove 203, and tighten the connecting bolt 10 to precisely adjust the height of the adapter plate 2 and the main mounting plate 6. Step S6) Arrange the installation positions of the laser scanning sensor 8 irregularly according to the detection range required by the actual workstation and the detection range of the laser scanning sensor 8 itself.

[0028] The specific installation positions of the irregularly arranged laser scanning sensors 8 are as follows: like Figures 7-9 As shown, taking a required detection range of 1.5m × 6m and a detection range of 0.7~2.3m for the laser scanning sensor 8 as an example, the laser scanning sensors 8 are arranged in a sawtooth pattern. The distance between two adjacent laser scanning sensors 8 in the X horizontal direction can be determined according to the optimal detection distance of the device itself, and can be set to 60%~80% of the maximum detection range of the laser scanning sensor 8. The spacing in the Y horizontal direction is 0.3~5 times the minimum detection range value of the laser scanning sensor 8. Without increasing the number of sensors, the detection area is increased by about 1 / 3 compared to the previous detection range.

[0029] If the height of the product being tested or the testing platform changes, adjust the height of the adapter plate 2 to adapt to the new testing environment; if the product being tested changes, and it is necessary to test the oblique dimensions of the product or to test products with a certain angle, the optimal performance can be achieved by adjusting the position and angle of the mounting bolt 11 within the arc groove 602.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable laser scanning device, characterized in that, The system includes a fixed bracket, an adapter plate, an upper mounting plate, a main mounting plate, a sensor connection plate, and a laser scanning sensor. The fixed bracket includes an upper and lower integrally formed connecting seat and a hollow square steel. The connecting seat is fixedly connected to an external base. One side of the square steel is provided with several adapter plate mounting holes. The adapter plate has an L-shaped structure and includes a vertical adapter plate and a horizontal adapter plate. A horizontal anti-vibration pad is provided between the horizontal adapter plate and the upper mounting plate. The vertical adapter plate has a U-shaped groove at its lower and upper parts, and the two U-shaped grooves are aligned vertically. Connecting bolts are screwed through the U-shaped grooves into the mounting holes of the adapter plate to connect the vertical adapter plate and the fixed bracket. The upper end of the upper mounting plate is connected to the lower end of the horizontal adapter plate, and the upper end of the main mounting plate is fixedly connected to the lower end of the upper mounting plate. The lower part of the main mounting plate is fan-shaped, and a first positioning hole is provided in the center of the lower part of the main mounting plate. A second positioning hole is provided in the center of the sensor connecting plate. Bolts are screwed into the first and second positioning holes to position the main mounting plate and the sensor connecting plate. The lower part of the main mounting plate has several arc grooves along a circumference, and the sensor connecting plate has several evenly distributed sensor mounting holes along a circumference. The arc grooves are designed to cooperate with the sensor mounting holes. Mounting bolts are screwed through the arc grooves into the sensor mounting holes to connect the main mounting plate and the sensor connecting plate. The sensor connecting plate is fixedly connected to the laser scanning sensor. The upper mounting plate is connected to the main mounting plate on one side by an L-shaped vertical shock-absorbing plate. The horizontal part of the vertical shock-absorbing plate is fixedly connected to the upper mounting plate by fixing bolts, and the vertical part of the vertical shock-absorbing plate is fastened to the main mounting plate by adjustable tightening bolts. The vertical shock-absorbing plate includes a shock-absorbing plate body. The left and right sides of the shock-absorbing plate body are respectively bent downward to provide inner ear rings. The shock-absorbing plate body is fixedly connected to the upper mounting plate by fixing bolts. The inner ear rings pass through the limiting holes of the upper mounting plate. The left and right sides of the upper end of the main mounting plate are provided with outer ear rings extending backward. The outer ear rings are connected to the inner ear rings by ear ring bolts. The front side of the shock-absorbing plate body is bent downward to provide a front ear ring. The front ear ring is a closed panel. The front ear ring is fastened to the main mounting plate by adjustable tightening bolts.

2. The adjustable laser scanning device according to claim 1, characterized in that, The mounting holes of the two adjacent adapter plates have two spacing settings. The spacing between the mounting holes of the upper adapter plate is 1 / 10 of the minimum detection distance of the laser scanning sensor, and the spacing between the mounting holes of the lower adapter plate is 1 / 25 of the minimum detection distance of the laser scanning sensor.

3. The adjustable laser scanning device according to claim 2, characterized in that, The length of the U-shaped groove is 2 / 3 of the spacing between the mounting holes on the lower adapter plate.

4. A detection method using the adjustable laser scanning device according to claim 1, characterized in that, Includes the following steps: Step S1) Fix the laser scanning sensor on the sensor connection plate; Step S2) Position the first positioning hole of the main mounting plate and the second positioning hole in the center of the sensor connection plate with bolts, and screw the mounting bolts into the sensor mounting holes through the arc grooves; Step S3) Fix both ends of the vertical vibration damping plate to the main mounting plate and the adapter plate respectively, and the adjustable tightening bolt passes through the main mounting plate to limit the vertical vibration damping plate; Step S4) Select a suitable adapter plate mounting hole and screw the connecting bolt into the adapter plate mounting hole through the U-shaped groove; Step S5) Precisely adjust the relative positions of the connecting bolts and the U-shaped groove, and tighten the connecting bolts to precisely adjust the height of the adapter plate and the main mounting plate; Step S6) Arrange the installation positions of the laser scanning sensors irregularly according to the detection range required by the actual workstation and the detection range of the laser scanning sensor itself.

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