Wood processing flatness laser detection device and method

Abstract

The invention belongs to the technical field of flatness laser detection, and particularly relates to a wood processing flatness laser detection device and method. Comprising a device table; a three-axis shifter is arranged at the top of the device table, a sliding laser transmitter is arranged on the Z axis of the three-axis shifter, and the output end of the laser transmitter faces the top of the device table; a parallel clamping device is arranged on the device table; the parallel clamping device comprises a U-shaped long seat arranged at the top of the device table, and a stop distance control unit is arranged on the U-shaped long seat; laminating long plates are arranged on the two sides of the wood, rubber energy absorption pads are arranged on the opposite faces of the two laminating long plates, and the side faces of the wood are located at the moving paths of the rubber energy absorption pads. According to the device, impurities adhered to or accumulated on the surface of the wood can be cleaned in the clamping process, the situation that a worker carries out clamping, cleaning and other operations in multiple steps is avoided, the situation that the preparation time of the device is prolonged before detection is avoided, the detection efficiency of the device is improved, and the limitation of the device in use is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of flatness laser detection, and particularly relates to a wood processing flatness laser detection device and method. Background Technique

[0002] When processing wood, its surface needs to have a high flatness to ensure the quality of the products produced; currently, the flatness of wood is usually detected using a laser device, which emits a laser beam onto the wood surface, and the laser beam is reflected on the wood surface; if the wood surface is flat, the reflected light will be received by the laser receiving module according to a certain rule; if there are unevenness on the wood surface, the angle and intensity of the reflected light will change; and during detection, the wood needs to be clamped to avoid deviation of the detection result caused by unstable factors such as wood shaking.

[0003] However, when the device is specifically used, it is unable to clean the impurities adhered or accumulated on the wood during the clamping process, resulting in the need for the staff to divide the above operations into multiple steps, prolonging the preparation time before the laser detection device detects, thereby reducing the detection efficiency of the device for the flatness of wood; at the same time, if the impurities on the wood are ignored during the use of the device, it will interfere with the reflection of the laser, and situations such as scattering and diffuse reflection are likely to occur, causing the laser signal that should originally be reflected to the receiving module at a certain angle and intensity to change, and the impurities existing on the wood will be misjudged as part of the wood surface by the laser detection device, resulting in deviation of the measured flatness data, reducing the detection accuracy of the device, and making the limitations of the device stronger when in use. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the invention provides a wood processing flatness laser detection device and method, effectively solving the problems in the above background technique.

[0005] To achieve the above object, the present invention provides the following technical solution: a laser detection device for the flatness of wood processing, including a device table; a three-axis displacer is provided on the top of the device table, and a sliding laser emitter is provided on the Z-axis of the three-axis displacer, and the output end of the laser emitter faces the top of the device table; a parallel clamping device is arranged on the device table, and the parallel clamping device is used to fix the wood to be detected on the top of the device table; the parallel clamping device includes a U-shaped long seat arranged on the top of the device table, and a position-limiting and distance-controlling unit is arranged on the U-shaped long seat, and the position-limiting and distance-controlling unit is used to adjust the distance between the wood surface and the output end of the laser emitter; both sides of the wood are provided with fitting long plates, and rubber energy-absorbing pads are arranged on the opposite surfaces of the two fitting long plates, and the side of the wood is located on the moving path of the rubber energy-absorbing pad; a positioning and anti-deviation mechanism is arranged on the fitting long plate, and the positioning and anti-deviation mechanism is used to prevent the position of the wood from shifting; a reciprocating scraper is further arranged on the top of the wood, and suction devices are arranged on both sides of the reciprocating scraper, and the output ends of the suction devices face the top of the wood.

[0006] Preferably, the inner opposite surfaces of the U-shaped long seat are commonly connected with a driving lead screw, a driving gear is installed on the driving lead screw, the driving gear is meshed and connected with a driving gear, and the output end of a driving motor is connected to the driving gear, and the driving motor is fixedly installed on the U-shaped long seat; two symmetrical reverse thread areas are arranged on the driving lead screw, and a driving block is installed in each thread area, and two driving blocks are commonly slidably connected with a driving cylinder, and both ends of the driving cylinder are fixedly connected with the U-shaped long seat; a driving cross plate is installed on the driving block, and a T-shaped rack is further installed on one side of one of the driving cross plates.

[0007] Preferably, two symmetrical fitting sliding columns are arranged through the side of the driving cross plate close to the wood, and the fitting sliding columns are slidably matched with the driving cross plate; the ends of the two fitting sliding columns close to the wood are commonly connected to the fitting long plate; a fitting spring is sleeved on the fitting sliding column, one end of the fitting spring is fixedly connected with the driving cross plate, and the other end is connected with a first limiting plate; the first limiting plate is fixed at the end of the fitting sliding column away from the wood; signal pieces are arranged on the opposite surfaces of the driving cross plate and the fitting long plate, and the two signal pieces are electrically connected.

[0008] Preferably, the positioning and anti-deviation mechanism includes two symmetrical active bases, and the active bases are fixedly installed on the side of the fitting long plate away from the wood; a rotating gear is connected to the opposite surfaces of the two active bases, a positioning sliding column is installed on the rotating gear, a positioning sliding plate is slidably connected to the positioning sliding column, and a blocking square plate is installed on the positioning sliding plate; a positioning spring is sleeved on the positioning sliding column, one end of the positioning spring is fixedly connected with the positioning sliding plate, and the other end is connected with a second limiting plate, and the second limiting plate is fixedly installed at the end of the positioning sliding column away from the rotating gear.

[0009] Preferably, a locking square column is further installed on the side of the active base away from the fitting long board. A locking square plate is slidably connected to the locking square column, and a locking tooth block is installed on the locking square plate. The tooth groove on the side wall of the rotating gear is located on the moving path of the locking tooth block and the two are meshed and matched; A locking spring is sleeved on the locking square column. One end of the locking spring is fixedly connected to the active base, and the other end is connected to a third limiting plate. The third limiting plate is fixedly connected to the end of the locking square column away from the active base.

[0010] Preferably, the position-limiting distance-control unit includes two position-limiting square columns symmetrically installed at the bottom of the U-shaped long seat; A fourth limiting plate is installed at the end of the position-limiting square column away from the U-shaped long seat, and the fourth limiting plate is located at the bottom of the device table; The position-limiting square column penetrates through the top of the device table and is slidably matched with the device table; A position-limiting spring is sleeved on the position-limiting square column. One end of the position-limiting spring is fixedly connected to the U-shaped long seat, and the other end is fixedly connected to the top of the device table; A number of through position-limiting slots are provided on the side surface of the position-limiting square column.

[0011] Preferably, a limiting base is installed at the bottom of the device table. A through limiting sliding column is provided on the side surface of the limiting base, and the limiting sliding column is slidably matched with the limiting base; A limiting spring is sleeved on the limiting sliding column. One end of the limiting spring is fixedly connected to the limiting base, and the other end is fixedly connected to a fifth limiting plate; A limiting cross plate is installed at the end of the limiting sliding column away from the fifth limiting plate, and a pull ring is connected to the limiting cross plate; A limiting insertion block is installed on the limiting cross plate, and the limiting insertion block is connected to one of the position-limiting slots.

[0012] Preferably, a dirt scraping and adsorption assembly is arranged on the fitting long board; The dirt scraping and adsorption assembly includes a driven base installed on the fitting long board, a driven rotating shaft installed on the driven base, a driven gear installed on the driven rotating shaft, and the side wall of the driven gear is located on the moving path of the T-shaped rack and the two are meshed and matched; A rotating disc is further installed at the end of the driven rotating shaft away from the driven base, and a rotating column body is installed at the top edge of the rotating disc; A rectangular cross block is provided at the top of the rotating disc, and a through rectangular sliding groove is provided at the top of the rectangular cross block. The rectangular sliding groove is slidably matched with the rotating column body; Two symmetrical guiding sliding columns are provided on one side of the rectangular cross block; A guiding substrate is installed on the driven base, and the guiding substrate is slidably matched with the two guiding sliding columns; A first touch plate is installed on the other side of the rectangular cross block; A second touch plate is installed on the top of the reciprocating scraper, and the second touch plate is located on the moving path of the first touch plate.

[0013] Preferably, a U-shaped square column is installed on the reciprocating scraper, an I-shaped sliding rail is installed on the U-shaped square column, and a number of guiding sliding boxes are slidably connected to the I-shaped sliding rail. The number of guiding sliding boxes is fixedly installed on the top of the blocking square plate; an L-shaped slider is also installed on the U-shaped square column, and an auxiliary cylinder penetrates through the side surface of the L-shaped slider. The auxiliary cylinder and the L-shaped slider are slidably matched; auxiliary substrates are installed at both ends of the auxiliary cylinder, and the auxiliary substrates are installed on the blocking square plate; an auxiliary spring is sleeved on the auxiliary cylinder, one end of the auxiliary spring is fixedly connected to the auxiliary substrate, and the other end is fixedly connected to the L-shaped slider.

[0014] The present invention also provides a method for laser detection of the flatness of wood processing, including the following steps: S1. Place the wood to be detected for flatness on the top of the device table, and operate the positioning clamping device to fix the wood; S2. Operate the laser emitter so that its output end emits a laser beam to the surface of the wood. The laser beam will be reflected on the surface of the wood, and the reflected light will be received by the laser emitter according to a certain law; S3. Analyze the received data through the system to judge the flatness of the wood surface, so as to detect the flatness of the wood; S4. Use the reciprocating scraper to clean the impurities adhered to the wood, and operate the suction device to collect the cleaned impurities.

[0015] As can be seen from the above, a device for laser detection of the flatness of wood processing provided by the present invention can clean the impurities adhered or accumulated on the surface of the wood during the clamping process, avoiding the need for the staff to perform operations such as clamping and cleaning in multiple steps, and avoiding the extension of the preparation time before the detection of the device. Further improving the detection efficiency of the device for the flatness of wood and reducing the limitations of the device in use; when the impurities adhered to the surface of the wood are cleaned, avoiding these impurities such as particles or dust from causing deviations in the detection results on the detection surface of the wood, so that the surface of the wood can be in a clean state for detection, avoiding the impurities existing on the wood being misjudged as part of the wood surface by the laser emitter, resulting in deviations in the flatness data obtained by measurement, thereby improving the accuracy of the device for detecting the flatness of wood, and preventing the laser beam at a certain angle from being scattered or diffusely reflected due to interference from impurities and other factors on the detection surface of the wood, so that the laser beam at a certain angle will not change due to the above situation, improving the detection effect of the device. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation to the present invention.

[0017] In the drawings: Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the limit insertion block structure of the present invention; Figure 3 Schematic diagram of the blocking square plate structure of the present invention; Figure 4 Schematic diagram of the stop slot structure of the present invention; Figure 5 Schematic diagram of the rubber energy absorption pad structure of the present invention; Figure 6 Schematic diagram of the suction device of the present invention; Figure 7 Schematic diagram of the signal piece of the present invention; Figure 8 Schematic diagram of the reciprocating scraper of the present invention; In the figure: 1, device table; 2, three-axis displacement device; 3, laser emitter; 4, U-shaped long seat; 5, fitting long plate; 6, rubber energy absorption pad; 7, reciprocating scraper; 8, suction device; 9, driving lead screw; 10, driving gear; 11, driving gear; 12, driving motor; 13, driving square block; 14, driving cylinder; 15, driving cross plate; 16, T-shaped rack; 17, fitting sliding column; 18, fitting spring; 19, signal piece; 20, driving base; 21, rotating gear; 22, positioning sliding column; 23, positioning sliding plate; 24, blocking square plate; 25, positioning spring; 26, locking square column; 27, locking square plate; 28, locking tooth block; 29, locking spring; 30, stop square column; 31, stop spring; 32, stop slot; 33, limit base; 34, limit sliding column; 35, limit spring; 36, limit cross plate; 37, pull ring; 38, limit insertion block; 39, driven base; 40, driven rotating shaft; 41, driven gear; 42, rotating disc; 43, rotating column; 44, rectangular cross block; 45, rectangular sliding groove; 46, guiding sliding column; 47, guiding base plate; 48, first contact plate; 49, second contact plate; 50, U-shaped square column; 51, I-shaped sliding rail; 52, guiding sliding box; 53, L-shaped sliding block; 54, auxiliary cylinder; 55, auxiliary base plate; 56, auxiliary spring. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment, consisting of Figures 1 to 8Given that, the present invention includes a device table 1; a three-axis displacer 2 is provided on the top of the device table 1, a sliding laser emitter 3 is provided on the Z-axis of the three-axis displacer 2, and the output end of the laser emitter 3 faces the top of the device table 1; a juxtaposed clamping device is provided on the device table 1, and the juxtaposed clamping device is used to fix the wood to be detected on the top of the device table 1; the juxtaposed clamping device includes a U-shaped long seat 4 provided on the top of the device table 1, and a stop distance control unit is provided on the U-shaped long seat 4, and the stop distance control unit is used to adjust the distance between the wood surface and the output end of the laser emitter 3; both sides of the wood are provided with fitting long plates 5, rubber energy absorption pads 6 are provided on the opposite surfaces of the two fitting long plates 5, and the side of the wood is located at the moving path of the rubber energy absorption pad 6; a positioning anti-deviation mechanism is provided on the fitting long plate 5, and the positioning anti-deviation mechanism is used to prevent the position of the wood from deviating; a reciprocating scraper 7 is further provided on the top of the wood, suction devices 8 are provided on both sides of the reciprocating scraper 7, and the output ends of the suction devices 8 face the top of the wood; the inner opposite surfaces of the U-shaped long seat 4 are commonly connected with a driving lead screw 9, a driving gear 10 is installed on the driving lead screw 9, the driving gear 10 is meshed and connected with a driving gear 11, and the output end of a driving motor 12 is connected to the driving gear 11, and the driving motor 12 is fixedly installed on the U-shaped long seat 4; two symmetric opposite thread areas are provided on the driving lead screw 9, a driving block 13 is installed in each thread area, the two driving blocks 13 are commonly slidably connected with a driving cylinder 14, and both ends of the driving cylinder 14 are fixedly connected with the U-shaped long seat 4; a driving cross plate 15 is installed on the driving block 13, and a T-shaped rack 16 is further installed on one side of one of the driving cross plates 15; two symmetric fitting sliding columns 17 are provided through the side of the driving cross plate 15 close to the wood, and the fitting sliding columns 17 are slidably matched with the driving cross plate 15; the ends of the two fitting sliding columns 17 close to the wood are commonly connected to the fitting long plate 5; a fitting spring 18 is sleeved on the fitting sliding column 17, one end of the fitting spring 18 is fixedly connected with the driving cross plate 15, and the other end is connected with a first limiting plate; the first limiting plate is fixed to the end of the fitting sliding column 17 away from the wood; signal pieces 19 are provided on the opposite surfaces of the driving cross plate 15 and the fitting long plate 5, and the two signal pieces 19 are electrically connected; Place the wood whose flatness needs to be detected on the top of the device table 1. By operating the laser emitter 3, make its output end emit a laser beam onto the wood surface. The laser beam will be reflected on the wood surface. If the wood surface is flat, the reflected light will be received by the laser receiving module on the laser emitter 3 according to a certain rule; if there are unevenness on the wood surface, the angle and intensity of the reflected light will change, and the resulting irregular phenomenon will be captured by the laser emitter 3 to analyze and judge the situation of the wood surface, thus completing the flatness detection of the wood; moreover, the laser emitter 3 is installed on the three-axis displacer 2, so that the laser emitter 3 can move along the X, Y, and Z axes to perform detection operations on different areas of the wood surface, reducing the limitations of the device during use; Before detection, by starting the drive motor 12, the output end thereof drives the driving gear 11 to rotate, enabling it to mesh with the driven gear 10 to rotate, and enabling the driving lead screw 9 thereon to rotate at the U-shaped long seat 4. Since the two thread regions on the driving lead screw 9 are opposite, the two driven blocks 13 connected by threads are limited to move relative to each other at the driving cylinder 14, causing the driving cross plate 15 on the driven block 13 to move towards the wood, and causing the driving cross plate 15 to drive the fitting long plate 5 to move under the action of the fitting slide column 17 and the fitting spring 18, moving it towards the wood and contacting its side surface, so that the two relatively moving fitting long plates 5 clamp the wood on the top of the device table 1, thereby fixing the wood to be detected, avoiding displacement or shaking of the wood during detection, which may cause changes in the detection accuracy, and thus improving the detection accuracy and effect of the device on the wood; at the same time, the rubber energy-absorbing pad 6 also increases the friction between the fitting long plate 5 and the wood, further improving the fixing effect of the fitting long plate 5 on the wood, avoiding the deviation of the laser reception caused by the change of the angle of the wood due to its movement during detection, avoiding the deviation of the flatness data obtained by measurement, and reducing the limitation of the device during use; when the fitting long plate 5 has contacted the wood, the continuous rotation of the driving lead screw 9 causes the moving driven block 13 to be limited to move on the fitting slide column 17 through the driving cross plate 15, making the fitting spring 18 in a buffered state, thereby strengthening the contact strength with the wood, avoiding the risk of shaking or dislocation due to insufficient contact force between the fitting long plate 5 and the wood, and improving the detection effect of the device; when the signal pieces 19 on the opposite surfaces of the driving cross plate 15 and the fitting long plate 5 are in contact, it means that the force exerted by the fitting long plate 5 on the wood has reached the standard, and it also means that the two fitting long plates 5 have both contacted the two sides of the wood, so that the contact of the two signal pieces 19 sends a signal to the control center to notify the staff to perform the detection operation, avoiding the dislocation of the clamped wood during the detection process or the unstable detection accuracy caused by the ineffective clamping of the wood before the detection operation, further reducing the limitation of the device during use, and further improving the detection effect of the device;It is worth mentioning that when the bonding long board 5 initially contacts the wood, it indicates that the wood has been initially fixed. At this time, the reciprocating scraper 7 will move to the detection surface of the wood. When the driving cross plate 15 continues to move, that is, when the bonding spring 18 deforms, the reciprocating scraper 7 will reciprocate on the detection surface of the wood to clean the impurities adhered to the detection surface of the wood, avoiding the existence of these impurities such as particulate matter or dust on the detection surface of the wood, which may cause deviation in the detection results. Thus, the wood surface can be in a clean state for detection, avoiding the impurities existing on the wood being misjudged as part of the wood surface by the laser emitter 3, resulting in deviation in the measured flatness data, thereby improving the accuracy of the device for detecting the flatness of the wood. This ensures that the detection surface of the wood will not be interfered by factors such as impurities, causing scattering, diffuse reflection, etc. of the laser, so that the laser beam at a certain angle will not change due to the above situation, improving the detection effect of the device. At the same time, when the reciprocating scraper 7 is cleaning the impurities on the wood surface, it will drive the suction devices 8 on both sides of the reciprocating scraper 7 to reciprocate. The output ends of the suction devices 8 face the wood surface, so that the suction devices 8 when the reciprocating scraper 7 moves forward can generate suction on the impurities on the wood, reducing the connection strength between the impurities and the wood, avoiding too high strength resulting in the reciprocating scraper 7 being unable to scrape off the impurities. After being loosened by suction, it is convenient for the reciprocating scraper 7 to scrape off the impurities, and the scraped impurities will be sucked into the suction devices 8, avoiding the accumulation of these impurities on the wood surface, increasing its weight and reducing the clamping effect, and at the same time avoiding the long-term presence of these impurities on the wood affecting the detection effect of the device, thus improving the detection accuracy of the device. Moreover, it enables the device to clean the impurities adhered or accumulated on the wood surface during the clamping process, avoiding the staff from performing operations such as clamping and cleaning in multiple steps, avoiding the extension of the preparation time before detection, and further improving the detection efficiency of the device for the flatness of the wood, reducing the limitations of the device during use.;

[0020] The positioning and deviation prevention mechanism of this embodiment includes two symmetrical active bases 20, and the active bases 20 are fixedly installed on the side of the fitting long board 5 away from the wood; on the opposite sides of the two active bases 20, rotating gears 21 are connected. A positioning slide post 22 is installed on the rotating gear 21, a positioning slide plate 23 is slidably connected to the positioning slide post 22, and a blocking square plate 24 is installed on the positioning slide plate 23; a positioning spring 25 is sleeved on the positioning slide post 22. One end of the positioning spring 25 is fixedly connected to the positioning slide plate 23, and the other end is connected to a second limiting plate, and the second limiting plate is fixedly installed at the end of the positioning slide post 22 away from the rotating gear 21; on the side of the active base 20 away from the fitting long board 5, a locking square post 26 is also installed. A locking square plate 27 is slidably connected to the locking square post 26, and a locking tooth block 28 is installed on the locking square plate 27. The tooth groove on the side wall of the rotating gear 21 is located on the moving path of the locking tooth block 28 and the two are meshed; a locking spring 29 is sleeved on the locking square post 26. One end of the locking spring 29 is fixedly connected to the active base 20, and the other end is connected to a third limiting plate, and the third limiting plate is fixedly connected to the end of the locking square post 26 away from the active base 20; When the staff operates and positions the clamping device to clamp the wood, by pulling the locking square plate 27 outwards, it is limited to move on the locking square post 26, so that the locking spring 29 is in a buffered state, and then drives the locking tooth block 28 to move, making it away from the rotating gear 21, so that the rotating gear 21 is disengaged from the meshing state with the locking tooth block 28, and the limiting state of the rotating gear 21 is released. By rotating the rotating gear 21, the positioning slide post 22 thereon drives the positioning slide plate 23 and the blocking square plate 24 to rotate, so that the blocking square plate 24 is rotated from a state perpendicular to the wood to a parallel state. Before rotating the blocking square plate 24, it is necessary to pull the blocking square plate 24 outwards, so that the positioning slide plate 23 thereon is limited to move at the positioning slide post 22, so that the positioning spring 25 is in a buffered state. When the blocking square plate 24 is rotated to a state parallel to the side of the wood, release it. The reset of the positioning spring 25 drives the blocking square plate 24 to reset and move, so that it fits against the side of the wood. The two blocking square plates 24 are respectively on both sides of the wood, so that the other two sides of the wood can be limited on the basis of the positioning and clamping device, so as to limit the wood in all directions, further avoiding the displacement or dislocation of the wood caused by non-human factors during the detection process, reducing the limitations of the device during use, and when the wood is limited in all directions, that is, after the front, back, left and right directions of the wood are limited, the wood can be fixed at the center position on the top of the device table 1, which is convenient for the detection operation of the laser emitter 3 and improves the use effect of the device; When the blocking square plate 24 rotates, since the reciprocating scraper 7 and the suction device 8 are installed on the blocking square plate 24, the reciprocating scraper 7 is driven to rotate together, so that its initial position follows the blocking square plate 24 to be perpendicular to the wood. When the blocking square plate 24 rotates until the reciprocating scraper 7 on it rotates to the wood surface, it avoids the influence of the initial position of the reciprocating scraper 7 on the fixing operation of the wood. Only after the wood is fixed can the reciprocating scraper 7 be moved to the top of the wood for the operation of cleaning impurities, reducing the limitations of the device during use and further improving the use effect of the device; at the same time, when the blocking square plate 24 limits the position of the wood, by loosening and pulling out the locking square plate 27, the reset of the locking spring 29 drives the locking tooth block 28 to reset and move, so that it moves to the side wall of the rotating gear 21 and meshes with it, thereby limiting the position of the rotating gear 21, avoiding the displacement of the wood caused by the movement of the blocking square plate 24 due to non-human factors or the like when limiting the position of the wood, further reducing the limitations of the device during detection, enabling the wood to have the same thrust in the front, back, left and right directions to push the wood to the center position at the top of the device table 1, so that the wood cannot displace in the front, back, left and right directions during the detection process, improving the detection accuracy and enhancing the use effect of the device.

[0021] The position-limiting and distance-controlling unit of this embodiment includes two position-limiting square columns 30 symmetrically installed at the bottom of the U-shaped long seat 4; a fourth limiting plate is installed at one end of the position-limiting square column 30 away from the U-shaped long seat 4, and the fourth limiting plate is located at the bottom of the device table 1; the position-limiting square column 30 penetrates through the top of the device table 1 and is slidably matched with the device table 1; a position-limiting spring 31 is sleeved on the position-limiting square column 30, one end of the position-limiting spring 31 is fixedly connected with the U-shaped long seat 4, and the other end is fixedly connected with the top of the device table 1; a plurality of through position-limiting slots 32 are provided on the side surface of the position-limiting square column 30; a limiting base 33 is installed at the bottom of the device table 1, a through limiting sliding column 34 is provided on the side surface of the limiting base 33, and the limiting sliding column 34 is slidably matched with the limiting base 33; a limiting spring 35 is sleeved on the limiting sliding column 34, one end of the limiting spring 35 is fixedly connected with the limiting base 33, and the other end is fixedly connected with a fifth limiting plate; a limiting cross plate 36 is installed at one end of the limiting sliding column 34 away from the fifth limiting plate, and a pull ring 37 is connected to the limiting cross plate 36; a limiting insertion block 38 is installed on the limiting cross plate 36, and the limiting insertion block 38 is connected to one of the position-limiting slots 32; When it is necessary to adjust the height of the wood to control the distance between it and the output end of the laser emitter 3, by pulling out the pull ring 37 outward, the limit cross plate 36 on it can be limited and moved at the limit base 33 through the limit sliding column 34, so that the limit spring 35 is in a buffered state. Then, the limit insertion block 38 on the limit cross plate 36 is disengaged from the stop slot 32, and the limit setting for the stop square column 30 is released. At this time, by moving the U-shaped long seat 4 up and down, it is limited and moved on the device table 1 through the stop square column 30, so that the stop spring 31 is in a buffered state. Since the wood is fixed on the U-shaped long seat 4, the wood will move along with the U-shaped long seat 4, and the height position of the wood can be adjusted, so that it can be adjusted to a suitable distance from the output end of the laser emitter 3 according to different detection requirements, reducing the limitations of the device during use. That is to say, since the thicknesses of different types and uses of wood are different, by adjusting the distance between the wood and the laser emitter 3, the laser beam emitted by the laser emitter 3 can be projected onto the wood surface at the best angle and distance, ensuring accurate measurement of the surface flatness of wood with different thicknesses. For example, for thicker solid wood boards, appropriately increasing the distance can make the laser beam completely cover the board surface, avoiding measurement errors caused by limited detection range due to too close distance, and improving the detection accuracy of the device. At the same time, it also avoids the risk of accidental collision with the laser emitter 3 and damage caused by too small a distance between the thick wood and the output end of the laser emitter 3. The adjustable distance function can ensure that during the detection process, the distance is reasonably set according to the actual situation of the wood, keeping a safe distance between the laser emitter 3 and the wood, reducing the risk of equipment damage due to collision, extending the service life of the device, reducing equipment maintenance and replacement costs, and at the same time avoiding the impact on the appearance and other qualities of the wood caused by damage to the wood surface, improving the use effect of the device; After the staff completes the adjustment of the distance between the wood and the laser emitter 3, release the pull ring 37. The reset of the limit spring 35 drives the limit cross plate 36 to move back, so that the limit plug 38 on it will enter one of the stop slots 32, and the stop square column 30 can be limited and set, so that the U-shaped long seat 4 on it can be limited to the current position, avoiding displacement and other situations of the wood clamped on the U-shaped long seat 4 during use, which affect the detection accuracy of the device, enabling the wood to be stably fixed at the current height position for flatness detection, reducing the limitations of the device during detection; at the same time, when the U-shaped long seat 4 is limited, the stop spring 31 in the buffer state cannot be reset, and the elastic force generated strengthens the contact strength between the stop slot 32 and the limit plug 38, avoiding the movement and other phenomena of the limit plug 38 due to non-human factors during use, improving the detection effect of the device; it is worth mentioning that the above height adjustment of the wood is an active operation, which changes the position of the detection object, avoiding the influence of the need to adjust the height position of the laser emitter 3 on the optical path stability, enabling the wood to be fixed at its height position for a long time during the detection process, avoiding the accelerated wear of components such as the guide rail caused by frequent adjustment of the position of the laser emitter 3, improving the service life of the device, avoiding the vibration generated when the laser emitter 3 moves from affecting the optical path stability, improving the detection accuracy, enabling the position of the wood to be adjusted once and then detected, and the laser emitter 3 does not move up and down, reducing the air flow caused by the movement, so that the impurities doped in the air are brought into the optical path or adhered to the output end of the laser emitter 3, affecting the detection accuracy, and further improving the use effect of the device.

[0022] A scraping and adsorption assembly is provided on the fitting long board 5 of this embodiment; the scraping and adsorption assembly includes a driven base 39 installed on the fitting long board 5, a driven rotating shaft 40 is installed on the driven base 39, a driven gear 41 is installed on the driven rotating shaft 40, and the side wall of the driven gear 41 is located at the moving path of the T-shaped rack 16 and the two are meshed and matched; one end of the driven rotating shaft 40 away from the driven base 39 is also installed with a rotating disc 42, and a rotating column 43 is installed at the top edge of the rotating disc 42; a rectangular cross block 44 is provided on the top of the rotating disc 42, a through rectangular sliding groove 45 is provided on the top of the rectangular cross block 44, and the rectangular sliding groove 45 is slidably matched with the rotating column 43; two symmetrically arranged guiding slide columns 46 are provided on one side of the rectangular cross block 44; a guiding substrate 47 is installed on the driven base 39, and the guiding substrate 47 is slidably matched with the two guiding slide columns 46; a first touch plate 48 is installed on the other side of the rectangular cross block 44; a second touch plate 49 is installed on the top of the reciprocating scraper 7, and the second touch plate 49 is located at the moving path of the first touch plate 48; a U-shaped square column 50 is installed on the reciprocating scraper 7, an I-shaped slide rail 51 is installed on the U-shaped square column 50, and a number of guiding slide boxes 52 are slidably connected to the I-shaped slide rail 51, and the number of guiding slide boxes 52 are fixedly installed on the top of the blocking square plate 24; an L-shaped slider 53 is also installed on the U-shaped square column 50, an auxiliary cylinder 54 is connected through the side of the L-shaped slider 53, and the auxiliary cylinder 54 and the L-shaped slider 53 are slidably matched; both ends of the auxiliary cylinder 54 are installed with auxiliary substrates 55, and the auxiliary substrates 55 are installed on the blocking square plate 24; an auxiliary spring 56 is sleeved on the auxiliary cylinder 54, one end of the auxiliary spring 56 is fixedly connected to the auxiliary substrate 55, and the other end is fixedly connected to the L-shaped slider 53; When the fitting long board 5 is fitted to the side of the wood, the fixing operation of the wood is initially completed. When the driving cross board 15 is limited to move on the fitting sliding column 17 and causes the fitting spring 18 to deform, it means that the fitting long board 5 cannot be displaced, reducing the distance between it and the driving cross board 15. When the driving cross board 15 drives the T-shaped rack 16 on it to move, it can engage with the driven gear 41 on the fitting long board 5 to rotate, enabling the driven rotating shaft 40 on it to drive the rotating disc 42 to rotate, and the rotating column 43 on it will reciprocate in the rectangular sliding groove 45. The rectangular sliding groove 45 is arranged on the rectangular cross block 44, causing the rectangular cross block 44 to reciprocate on the guiding base plate 47 through the guiding sliding column 46, and then driving the first touch plate 48 on the rectangular cross block 44 to reciprocate. Since the second touch plate 49 is located on the moving path of the first touch plate 48, the first touch plate 48 will contact the second touch plate 49 when moving forward, enabling the reciprocating scraper 7 on it to be limited and slide on several guiding sliding boxes 52 at the top of the blocking square plate 24 through the I-shaped sliding rail 51 on the U-shaped square column 50. That is, when the reciprocating scraper 7 moves forward, it will be limited to move on the auxiliary cylinder 54 through the L-shaped sliding block 53 on the U-shaped square column 50, putting the auxiliary spring 56 in a buffered state; when the first touch plate 48 moves in the reset direction, it no longer contacts the second touch plate 49, and when it loses the acting force, it no longer limits the auxiliary spring 56, and its reset drives the reciprocating scraper 7 to move in the reset direction. Since the movement of the rectangular cross block 44 driving the first touch plate 48 is reciprocating, the reciprocating scraper 7 reciprocates on the surface of the wood, cleaning the impurities or dust and other substances adhered to different positions on the surface of the wood being detected, preventing the existence of these impurities from affecting the detection accuracy of the device. At the same time, it also drives the suction device 8 on the reciprocating scraper 7 to reciprocate, enabling its output end to collect the impurities cleaned from the wood, preventing the long-term presence on the surface of the wood being detected from affecting the detection effect and accuracy of the device. Moreover, the suction device 8 can be started before the reciprocating scraper 7 scrapes the impurities, creating suction on the impurities adhered to the wood to reduce the connection strength between the two, facilitating improving the cleaning effect of the reciprocating scraper 7 on the impurities, enhancing the use effect of the device, and preventing the connection strength between the impurities and the wood from being too high, which may cause difficulty in cleaning or damage to the wood when the reciprocating scraper 7 reciprocates, ensuring the quality of the wood and reducing the limitations of the device during detection.

[0023] The present invention also provides a method for laser detecting the flatness of wood processing, including the following steps: S1. Place the wood whose flatness needs to be detected on the top of the device table 1, and operate the positioning and clamping device to fix the wood; S2. Operate the laser emitter 3, so that its output end emits a laser beam to the surface of the wood. The laser beam will be reflected on the surface of the wood, and the reflected light will be received by the laser emitter 3 according to a certain rule; S3. By systematically analyzing the received data, the flatness of the wood surface can be judged to detect the flatness of the wood. S4. By using the double-acting scraper 7, the impurities adhering to the wood can be cleaned, and the suction device 8 can be operated to collect the cleaned impurities.

[0024] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wood processing flatness laser detection device, comprising a device platform (1); characterized in that: A three-axis displacer (2) is provided on the top of the device platform (1); a sliding laser emitter (3) is provided on the Z axis of the three-axis displacer (2); the output end of the laser emitter (3) faces the top of the device platform (1); a parallel clamping device is provided on the device platform (1); the parallel clamping device is used to fix the wood to be inspected on the top of the device platform (1); the parallel clamping device comprises a U-shaped long seat (4) provided on the top of the device platform (1); a stop distance control unit is provided on the U-shaped long seat (4); the stop distance control unit is used to adjust the wood The distance between the surface and the output end of the laser emitter (3); both sides of the wood are provided with bonding long plates (5), the opposite surfaces of the two bonding long plates (5) are provided with rubber energy absorbing pads (6), and the side of the wood is located at the moving path of the rubber energy absorbing pads (6); the bonding long plates (5) are provided with a positioning anti-deviation mechanism, and the positioning anti-deviation mechanism is used to prevent the position of the wood from being offset; the top of the wood is also provided with a double-acting scraper (7), and suction equipment (8) is provided on both sides of the double-acting scraper (7), and the output end of the suction equipment (8) faces the top of the wood.

2. The laser detection device for wood processing flatness according to claim 1, characterized in that: The inner opposite surfaces of the U-shaped long seat (4) are commonly connected to a driving screw rod (9), a driving gear (10) is mounted on the driving screw rod (9), the driving gear (10) is meshingly connected to a driving gear (11), the driving gear (11) is connected to the output end of a driving motor (12), and the driving motor (12) is fixedly mounted on the U-shaped long seat (4); the driving screw rod (9) is provided with two symmetrical opposite threaded areas, each threaded area is mounted with a driving block (13), the two driving blocks (13) are commonly slidably connected to a driving cylinder (14), and the two ends of the driving cylinder (14) are fixedly connected to the U-shaped long seat (4); a driving cross plate (15) is mounted on the driving block (13), and a T-shaped rack (16) is also mounted on one side of one of the driving cross plates (15).

3. The laser detection device for wood processing flatness according to claim 2, characterized in that: Two symmetrical fitting slide posts (17) are provided through one side of the driving transverse plate (15) close to the wood, and the fitting slide posts (17) and the driving transverse plate (15) are slidably matched; one end of the two fitting slide posts (17) close to the wood is commonly connected to the fitting long plate (5); a fitting spring (18) is sleeved on the fitting slide post (17), one end of the fitting spring (18) is fixedly connected to the driving transverse plate (15), and the other end is connected to a first limit plate; the first limit plate is fixed to the end of the fitting slide post (17) away from the wood; the opposite surfaces of the driving transverse plate (15) and the fitting long plate (5) are both provided with signal plates (19), and the two signal plates (19) are electrically connected.

4. The laser detection device for wood processing flatness according to claim 1, characterized in that: The positioning anti-bias mechanism comprises two symmetrical active bases (20), the active bases (20) being fixedly mounted on a side of the fitting long board (5) away from the wood; opposite back surfaces of the two active bases (20) are connected with a rotating gear (21), a positioning slide post (22) is mounted on the rotating gear (21), a positioning slide plate (23) is slidably connected to the positioning slide post (22), and a blocking square plate (24) is mounted on the positioning slide plate (23); a positioning spring (25) is sleeved on the positioning slide post (22), one end of the positioning spring (25) is fixedly connected to the positioning slide plate (23), and the other end is connected with a second limit plate, and the second limit plate is fixedly mounted on one end of the positioning slide post (22) away from the rotating gear (21).

5. The laser detection device for wood processing flatness according to claim 4, characterized in that: A locking square column (26) is also installed on the side of the active base (20) away from the fitting long plate (5), and a locking square plate (27) is slidably connected to the locking square column (26), and a locking tooth block (28) is installed on the locking square plate (27). The tooth groove of the side wall of the rotating gear (21) is located at the moving path of the locking tooth block (28) and the two are meshed and matched; a locking spring (29) is sleeved on the locking square column (26), one end of the locking spring (29) is fixedly connected to the active base (20), and the other end is connected to a third limit plate, and the third limit plate is fixedly connected to the end of the locking square column (26) away from the active base (20).

6. The laser detection device for wood processing flatness according to claim 1, characterized in that: The stop distance control unit comprises two stop square columns (30) symmetrically mounted at the bottom of the U-shaped long seat (4); a fourth limit plate is mounted at one end of the stop square column (30) away from the U-shaped long seat (4), and the fourth limit plate is located at the bottom of the device platform (1); the stop square column (30) passes through the top of the device platform (1) and is slidably matched with the device platform (1); a stop spring (31) is sleeved on the stop square column (30), one end of the stop spring (31) is fixedly connected to the U-shaped long seat (4), and the other end is fixedly connected to the top of the device platform (1); and a plurality of stop slots (32) are provided on the side of the stop square column (30).

7. The laser detection device for wood processing flatness according to claim 6, characterized in that: A limit base (33) is installed at the bottom of the device platform (1), and a limit slide column (34) is provided on the side of the limit base (33) to penetrate therethrough, and the limit slide column (34) and the limit base (33) are slidably matched; a limit spring (35) is sleeved on the limit slide column (34), one end of the limit spring (35) is fixedly connected to the limit base (33), and the other end is fixedly connected to the fifth limit plate; a limit horizontal plate (36) is installed at one end of the limit slide column (34) away from the fifth limit plate, and a pull ring (37) is connected to the limit horizontal plate (36); a limit plug block (38) is installed on the limit horizontal plate (36), and the limit plug block (38) is connected to one of the stop slots (32).

8. The laser detection device for wood processing flatness according to claim 1, characterized in that: The laminating long plate (5) is provided with a scraping and adsorption assembly; the scraping and adsorption assembly comprises a driven base (39) mounted on the laminating long plate (5), a driven rotating shaft (40) mounted on the driven base (39), a driven gear (41) mounted on the driven rotating shaft (40), a side wall of the driven gear (41) being located in the moving path of the T-shaped rack (16) and the two being meshed and matched; a rotating disc (42) is also mounted on the end of the driven rotating shaft (40) away from the driven base (39), a rotating cylinder (43) is mounted on the top edge of the rotating disc (42); a rectangular A rectangular cross block (44) is provided on the top of the rectangular cross block (44), and a rectangular slide groove (45) is provided therethrough, and the rectangular slide groove (45) is slidably matched with the rotating column (43); two symmetrical guide slide columns (46) are provided on one side of the rectangular cross block (44); a guide base plate (47) is installed on the driven base (39), and the guide base plate (47) is slidably matched with the two guide slide columns (46); a first touch plate (48) is installed on the other side of the rectangular cross block (44); a second touch plate (49) is installed on the top of the double-acting scraper (7), and the second touch plate (49) is located at the moving path of the first touch plate (48).

9. The laser detection device for wood processing flatness according to claim 8, characterized in that: The double-acting scraper (7) is provided with a U-shaped square column (50), an I-shaped slide rail (51) is provided on the U-shaped square column (50), a plurality of guide slide boxes (52) are slidably connected to the I-shaped slide rail (51), and the plurality of guide slide boxes (52) are fixedly installed on the top of the blocking square plate (24); an L-shaped slider (53) is also provided on the U-shaped square column (50), an auxiliary cylinder (54) is connected through the side of the L-shaped slider (53), and the auxiliary cylinder (54) and the L-shaped slider (53) are slidably matched; auxiliary base plates (55) are provided at both ends of the auxiliary cylinder (54), and the auxiliary base plate (55) is installed on the blocking square plate (24); an auxiliary spring (56) is sleeved on the auxiliary cylinder (54), one end of the auxiliary spring (56) is fixedly connected to the auxiliary base plate (55), and the other end is fixedly connected to the L-shaped slider (53).

10. A method for detecting wood processing flatness by laser, using the wood processing flatness laser detection device as claimed in claim 1, characterized in that: Includes steps: S1. Place the wood to be tested for flatness on the top of the device table (1), and operate the clamping device to fix the wood; S2, operating the laser transmitter (3) so that its output end emits a laser beam to the wood surface, the laser beam will be reflected on the wood surface, and the reflected light will be received by the laser transmitter (3) according to a certain rule; S3, the system analyzes the received data to determine the flatness of the wood surface, so as to detect the flatness of the wood; S4. Using the double-acting scraper (7), impurities adhering to the wood are cleaned, and the cleaned impurities are collected by operating the suction device (8).

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