A laser flatness measuring device

Abstract

The application discloses a kind of laser flatness measuring devices, it is related to laser measurement technical field, including laser main body and the base for its overall support, the base includes bearing seat, inside by fixed fixed plate is divided into upper chamber and lower chamber, the laser main body is detachably arranged in upper chamber, the inside of lower chamber is provided with the inner sleeve fixed with the bottom surface of fixed plate;Detection seat body is set in lower chamber, and the support portion is inserted into the inner sleeve and coaxial with it on it, hinge is hinged at the barycenter of the top surface of support portion, and the top end of the hinge is fixed with fixed plate.The relative position of small magnet in adjusting combination magnet is changed to change the size of repulsion, the levelness of base can be fine-tuned, and the placement surface of different flatness is adapted, so that the laser flatness measurement in accurate horizontal state is ensured, and the accuracy and reliability of laser flatness measurement are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser measurement, in particular to a kind of laser flatness measuring device. BACKGROUND

[0002] In modern laser technology field, the performance and quality of laser are highly dependent on the flatness accuracy of its internal optical elements and related components. High-precision flatness measurement plays a crucial role in ensuring the beam quality, energy conversion efficiency and stability of laser.

[0003] In laser flatness measurement, laser triangulation method is commonly used. Laser beam is projected onto the measured plane, and the reflected light is received by the detector. According to the geometric relationship of triangle, the height difference of each point on the plane is calculated by the position change of reflected light, and then the flatness information is obtained.

[0004] When the measuring device is not horizontal, the incidence angle of laser beam and the receiving angle of reflected light will change. This angle change will cause error in the calculated height difference, because the angle reference in the geometric relationship of triangle has changed. For example, assuming that the originally vertically incident laser beam becomes oblique incidence due to the inclination of the device, the position of the reflected light will deviate from the normal position due to the change of incidence angle, so that the height difference calculated according to the wrong position does not match the actual flatness, reducing the measurement accuracy.

[0005] Traditional laser flatness measurement devices usually use relatively simple mechanical base structure to support the measuring equipment. Such base often lacks effective level adjustment mechanism, or only has limited coarse adjustment function. Common fixed base cannot automatically adapt and adjust to accurate horizontal state when placed on uneven work platform. Even if some bases are equipped with basic adjustment bolts, their adjustment accuracy is difficult to meet the growing demand for high-precision laser measurement. In actual operation, due to the deviation of base level, measurement error will be introduced, leading to inaccurate evaluation of laser flatness. This not only may affect the development process of laser, making it difficult for researchers to accurately judge the real reason for poor performance of laser, but also may cause a large number of unstable product quality problems in production link, increasing production cost and reducing production efficiency.

[0006] Therefore, the present application is proposed. SUMMARY

[0007] The purpose of the present application is to provide a kind of laser flatness measuring device to solve the problems raised in the background.

[0008] To solve the above technical problems, the present application provides a kind of laser flatness measuring device, which includes a laser body and a base for supporting the whole device. The base includes:

[0009] The bearing seat is internally separated into an upper chamber and a lower chamber by a fixed fixed plate, the laser main body is detachably arranged in the upper chamber, and an inner sleeve fixed to the bottom surface of the fixed plate is arranged in the lower chamber;

[0010] The detection seat body is arranged in the lower chamber, a support portion is inserted into the inner sleeve and coaxial with the inner sleeve, a hinge is hingedly connected to the center of gravity of the top surface of the support portion, and the top end of the hinge is fixed to the fixed plate;

[0011] The outer sleeve extends upward from the top surface of the detection seat body and surrounds the outside of the inner sleeve, a plurality of combined magnets are arranged on the inner ring surface of the outer sleeve at equal intervals, a permanent magnet plate is arranged on the outer ring surface of the inner sleeve and matches the combined magnets one by one, the combined magnets and the permanent magnet plate that are opposite to each other repel each other, the combined magnets are composed of a plurality of small magnets that repel each other, and the repulsion force between the combined magnets and the permanent magnet plate increases when the small magnets in the combined magnets are close to each other.

[0012] Further, a driving assembly for driving the plurality of small magnets to gather or disperse is further included, and the driving assembly comprises:

[0013] A plurality of rotating cylinders are rotatably connected to the side wall of the outer sleeve and correspond to the combined magnets one by one.

[0014] A spiral slide is arranged on the front end surface of the rotating cylinder, a plurality of follow-up rods extending along the axis of the rotating cylinder are arranged in the spiral slide, a guide groove for the follow-up rods to slide is arranged on the inner wall of the outer sleeve, and the small magnets are connected to one end of the follow-up rods extending into the outer sleeve.

[0015] Further, the driving assembly further comprises:

[0016] A plurality of fan plates are arranged in a circumferential array on the outer wall of the rotating cylinder and extend along the radial direction of the rotating cylinder, a containing groove for the fan plates to rotate is arranged on the side wall of the outer sleeve, a gap between the inner wall of the containing groove and the outer wall of the rotating cylinder forms a sealed annular air channel, and the side of the fan plate away from the rotating cylinder is attached to the inner surface of the annular air channel.

[0017] A plurality of soft air cylinders are arranged in rotational symmetry on the upper surface of the support portion, and the top end of the soft air cylinder is fixed to the bottom surface of the fixed plate.

[0018] A flow channel is arranged on the wall surface of the bearing seat and the fixed plate, one end of the flow channel is in communication with the soft air cylinder, and the other end of the flow channel is in communication with the annular air channel.

[0019] Further, the flow channel comprises:

[0020] A plurality of conduits are arranged in a circumferential array on the fixed plate, one end of each conduit is in communication with the soft air cylinder, and the other end of each conduit is connected to a hollow ball, and the conduits are not in communication with each other.

[0021] A plurality of telescopic pipes are arranged in a circumferential array on the bearing seat; one end is communicated with the hollow ball, and the other end is communicated with the annular air channel.

[0022] Further, a plurality of embedding grooves are arranged circumferentially on the outer wall of the bearing seat, the hollow ball is installed inside the embedding groove, and the inside of each hollow ball is provided with a foam bead.

[0023] Further, a connecting hole communicated with the annular air channel is arranged on the outer wall of the outer sleeve, and the end of the telescopic pipe away from the hollow ball is fixed inside the connecting hole.

[0024] Further, the laser body is fixed with the bearing seat through a quick release structure, and the quick release structure comprises

[0025] The connecting column is connected to the bottom surface of the laser body and vertically extends downwards along the bottom surface of the laser body to be inserted into the upper chamber;

[0026] The movable plate is vertically slid along the inner wall of the upper chamber and is sleeved outside the connecting column; the bottom surface of the movable plate is provided with a locking sleeve extending into the upper chamber;

[0027] The limiting sleeve is arranged around the outer wall of the connecting column, the bottom surface of the limiting sleeve is fixed with the top surface of the fixed plate, and the limiting sleeve is provided with a sliding hole arranged along the radial direction thereof;

[0028] The ball is slidably connected inside the sliding hole, and the outer wall of the connecting column is provided with a clamping groove for clamping the ball;

[0029] The lock head is fixed on the side wall of the locking sleeve and corresponds to the sliding hole to limit the ball inside the sliding hole.

[0030] Further, the bottom surface of the movable plate is fixedly installed with a plurality of reset springs, the bottom end of the reset spring is fixedly connected with the top surface of the fixed plate, and the reset spring is provided with a plurality of reset springs arranged in a circumferential array around the locking sleeve.

[0031] Further, a vertical groove is arranged on the inner wall of the bearing seat along the axial direction thereof, and a rib is arranged on the side wall of the movable plate and corresponds to the vertical groove, and the rib is slidably connected inside the vertical groove.

[0032] Further, the bottom surface of the bearing seat is further connected with an adjusting seat, and the bottom surface of the adjusting seat is connected with a tripod.

[0033] Compared with the prior art, the beneficial effects of the present application are:

[0034] 1. The application separates the upper and lower chambers by the fixed plate, the detection seat body is located in the lower chamber, the support part is connected with the fixed plate through the hinge to realize a certain relative rotation freedom, the outer sleeve surrounds the inner sleeve, the combined magnet and the permanent magnet plate repel each other with the same polarity, when the small magnets in the combined magnet approach each other, according to the relationship between the repulsion force and the magnetic pole strength between the magnets, the repulsion force increases, thereby providing support for the detection seat body and adjusting the posture, so that the detection seat body can be relatively flexibly adjusted in position to adapt to different horizontal state requirements, indirectly ensuring the stability of the horizontal degree measurement environment of the laser main body; by adjusting the relative position of the small magnets in the combined magnet to change the repulsion force, the base level can be fine-tuned, different flatness placement surfaces can be adapted to, and the laser can be ensured to measure the flatness in the accurate horizontal state, which is beneficial to improve the accuracy and reliability of the laser flatness measurement.

[0035] 2. When the laser main body is not parallel, the inclined fixed plate will squeeze the soft air cylinder in the corresponding direction, at this time the soft air cylinder is not equal in length, the gas in the soft air cylinder flows into the flow passage, the fan plates are distributed in a circular array on the outer wall of the rotating cylinder, the gas entering the annular air duct through the flow passage can drive the fan plates to rotate, the rotating cylinder rotates, and the rotating cylinder can drive the plurality of follower rods to move along the track of the spiral slide to drive the plurality of small magnets to gather, thereby achieving the effect of self-adjustment, and enhancing the ability of the entire device to adapt to complex environments and accurate measurement requirements. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a front view structural schematic diagram of the application;

[0037] Figure 2 It is a rear view structural schematic diagram of the application;

[0038] Figure 3 It is a connection structure schematic diagram of the laser main body and the bearing seat in the application;

[0039] Figure 4 It is a front view structural schematic diagram of Figure 3 ;

[0040] Figure 5 It is a sectional view structural schematic diagram of Figure 4 ;

[0041] Figure 6 It is an enlarged view of the structure at A in Figure 5 ;

[0042] Figure 7 It is a whole structure schematic diagram of the detection seat body in the application;

[0043] Figure 8 It is a partial structure schematic diagram of the detection seat body in the application;

[0044] Figure 9 Figure 1 is a structural schematic diagram of a driving assembly in the application.

[0045] In the figure: 1, laser main body; 2, connecting column; 3, bearing seat; 4, adjusting seat; 5, tripod; 6, fixed plate; 7, movable plate; 8, reset spring; 9, clamping groove; 10, lock sleeve; 11, limiting sleeve; 12, sliding hole; 13, ball; 14, lock head; 15, detection seat body; 16, hinge; 17, inner sleeve; 18, permanent magnet plate; 19, outer sleeve; 20, combined magnet; 21, soft air cylinder; 22, guide pipe; 23, hollow ball; 24, foam bead; 25, telescopic pipe; 26, rotating cylinder; 27, fan plate; 28, spiral slide; 29, follow-up rod; 30, guide groove; 31, connecting hole. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the application will be apparently and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0047] Please refer to Figures 1-9 The application provides a technical solution: a laser flatness measuring device, comprising a laser main body 1 and a base for supporting the whole device, wherein the base comprises:

[0048] A bearing seat 3 is internally separated into an upper chamber and a lower chamber by a fixed fixed plate 6, the laser main body 1 is detachably arranged in the upper chamber, and the lower chamber is internally provided with an inner sleeve 17 fixed to the bottom surface of the fixed plate 6.

[0049] A detection seat body 15 is arranged in the lower chamber, a support portion is inserted into the inner sleeve 17 and coaxial with the inner sleeve 17, a hinge 16 is hinged at the center of gravity of the top surface of the support portion, and the top end of the hinge 16 is fixed to the fixed plate 6.

[0050] An outer sleeve 19 extends upward from the top surface of the detection seat body 15 and surrounds the outside of the inner sleeve 17, a plurality of combined magnets 20 are arranged at equal intervals on the inner ring surface of the outer sleeve 19, a permanent magnet plate 18 is arranged on the outer ring surface of the inner sleeve 17 and matches the combined magnets 20 one by one, the combined magnets 20 and the permanent magnet plate 18 that are opposite to each other repel each other, the combined magnets 20 are composed of a plurality of small magnets that repel each other, and the repulsion force between the combined magnets 20 and the permanent magnet plate 18 increases when the small magnets in the combined magnets 20 are close to each other.

[0051] Specifically, the laser body 1 is placed in the upper chamber of the supporting base 3, and the upper and lower chambers are separated by the fixed plate 6. The detection base body 15 is located in the lower chamber, and its support part is connected to the fixed plate 6 through the hinge 16 to achieve a certain degree of relative rotation freedom. The outer sleeve 19 surrounds the inner sleeve 17, and the combined magnet 20 and the permanent magnet plate 18 repel each other with the same poles. When the small magnets in the combined magnet 20 approach each other, the repulsive force increases according to the relationship between the repulsive force between the magnets and the magnetic pole strength, thereby providing support for the detection base body 15 and adjusting its posture, so that the detection base body 15 can adjust its position relatively flexibly to adapt to different horizontal state requirements, indirectly ensuring the stability of the horizontal measurement environment of the laser body 1.

[0052] By adjusting the relative positions of the small magnets in the combined magnet 20 to change the size of the repulsive force, the horizontality of the base can be fine-tuned to adapt to placement surfaces of different flatness, ensuring that the laser performs flatness measurement in a precisely horizontal state, which is beneficial to improving the accuracy and reliability of the laser flatness measurement.

[0053] See Figure 5 、 Figure 8 and Figure 9 , further comprising a driving component for driving a plurality of small magnets to gather together or disperse with each other, the driving component comprising:

[0054] A plurality of rotating drums 26 are rotatably connected to the side wall of the outer sleeve 19 and correspond one-to-one to the combined magnets 20 .

[0055] The spiral slide 28 is provided on the front end surface of the rotating drum 26, and a plurality of follower rods 29 extending axially along the rotating drum 26 are inserted inside the spiral slide 28, and a guide groove 30 for the follower rods 29 to slide is provided on the inner wall of the outer sleeve 19; a small magnet is connected to one end of the follower rod 29 extending to the inside of the outer sleeve 19.

[0056] Specifically, the rotating drum 26 is rotatably connected to the side wall of the outer sleeve 19. When the rotating drum 26 rotates, due to the cooperation between the spiral slide 28 and the follower rod 29, the follower rod 29 will move radially along the rotating drum 26. Because the small magnet is connected to one end of the follower rod 29 extending to the inside of the outer sleeve 19, the rotation of the rotating drum 26 can drive multiple small magnets to gather or disperse with each other in the radial direction. For example, when the rotating drum 26 is rotated clockwise, the spiral slide 28 pushes the follower rod 29 to move inward, and the small magnets approach each other, thereby increasing the repulsive force between the combined magnet 20 and the permanent magnet plate 18; counterclockwise rotation causes the small magnets to disperse, and the repulsive force changes accordingly, thereby realizing active control of the support force and posture of the detection base 15.

[0057] The application provides a way of actively adjusting the relative position of small magnets in a combined magnet 20, which can accurately control the size and direction of magnetic suspension force and further improve the flexibility and accuracy of horizontal level adjustment of the base. Compared with the change in the distribution of small magnets in a natural state, the driving assembly can be actively adjusted according to actual measurement requirements, thereby enhancing the ability of the whole device to adapt to complex environments and accurate measurement requirements.

[0058] Referring to Figure 5 , Figure 7 , Figure 8 and Figure 9 , the driving assembly further comprises:

[0059] The fan plates 27 are distributed in a circumferential array on the outer wall of the rotating drum 26 and extend in the radial direction of the rotating drum 26; the side wall of the outer sleeve 19 is provided with a containing groove for the rotation of the fan plates 27, and the gap between the inner wall of the containing groove and the outer wall of the rotating drum 26 forms a sealed annular air channel, and the side of the fan plates 27 away from the rotating drum 26 is attached to the inner surface of the annular air channel.

[0060] A plurality of soft air cylinders 21 are arranged in a rotational symmetry on the upper surface of the support part, and the top end of the soft air cylinder 21 is fixed to the bottom surface of the fixed plate 6.

[0061] The flow channel is arranged on the wall surface of the bearing seat 3 and the fixed plate 6, one end of the flow channel is in communication with the soft air cylinder 21, and the other end of the flow channel is in communication with the annular air channel.

[0062] Specifically, in a natural state, the laser main body 1 is in a horizontal state; when the laser main body 1 is parallel to the detection seat body 15; at this time, the soft air cylinders 21 between the fixed plate 6 and the detection seat body 15 are of the same length; when the laser main body 1 is not parallel, the inclined fixed plate 6 will squeeze the soft air cylinders 21 in the corresponding direction, at this time, the soft air cylinders 21 are of different lengths, the gas in the soft air cylinders 21 flows into the flow channel, the fan plates 27 are distributed in a circumferential array on the outer wall of the rotating drum 26, the gas flowing into the annular air channel through the flow channel can drive the fan plates 27 to rotate, and the rotating drum 26 rotates accordingly, and the rotating of the rotating drum 26 can drive the plurality of small magnets to move along the track of the spiral slide 28.

[0063] Referring to Figure 3 and Figure 5 , the flow channel comprises:

[0064] A plurality of conduits 22 are arranged in a circumferential array on the fixed plate 6; one end of each conduit 22 is in communication with the soft air cylinder 21, and the other end of each conduit 22 is connected with a hollow ball 23, and the conduits 22 are not in communication with each other.

[0065] A plurality of telescopic pipes 25 are arranged in a circumferential array on the bearing seat 3; one end of each telescopic pipe 25 is in communication with the hollow ball 23, and the other end of each telescopic pipe 25 is in communication with the annular air channel.

[0066] A plurality of embedding grooves are circumferentially formed on the outer wall of the bearing seat 3, and the hollow ball 23 is installed in the embedding groove, and the inside of each hollow ball 23 is provided with a foam bead 24.

[0067] Specifically, the hollow ball 23 is installed in the embedding groove of the outer wall of the bearing seat 3, and the foam bead 24 is arranged in the inside, when the gas flows in the hollow ball 23, the foam bead 24 will move with the airflow and collide and rub with each other, on the one hand, the foam bead 24 can disperse the impact force of the airflow, so that the pressure change of the gas in the hollow ball 23 is more gentle; on the other hand, the existence of the foam bead 24 increases the flow resistance of the gas in the hollow ball 23, further slows down the gas flow rate, so that the pressure change of the gas entering the soft air cylinder 21 is more stable, which helps to accurately control the state of the soft air cylinder 21 and adjust the posture of the detection seat body 15.

[0068] The effect of the foam bead 24 in the hollow ball 23 can effectively improve the accuracy and stability of the gas pressure control, reduce the accidental change of the levelness of the measuring device caused by external interference or airflow fluctuation, and optimize the flow characteristics of the gas in the hollow ball 23, thereby enhancing the anti-interference ability of the entire levelness adjustment system, and ensuring that the laser plane measurement device can still maintain a stable and accurate levelness measurement state under relatively complex environmental conditions.

[0069] It should be noted that when the gas in the soft air cylinder 21 enters the inside of the hollow ball 23 through the conduit 22, the foam bead 24 can be blown to roll irregularly in the inside of the hollow ball 23 by the flow of the gas, and the staff can judge whether it is horizontal by observing the situation of the foam bead 24 in the hollow ball 23, thereby achieving the indicating effect.

[0070] Referring to Figure 3 and Figure 5 , the outer wall of the outer sleeve 19 is provided with a connecting hole 31 communicating with the annular air channel, and the end of the telescopic pipe 25 away from the hollow ball 23 is fixed in the inside of the connecting hole 31.

[0071] Specifically, one end of the telescopic pipe 25 communicates with the hollow ball 23, and the other end is fixed in the connecting hole 31 of the annular air channel, forming a stable gas transmission channel, and the gas can be transmitted through the communication path between the telescopic pipe 25, the hollow ball 23, the conduit 22 and the soft air cylinder 21, thereby realizing the control of the state of the soft air cylinder 21, when the gas in the soft air cylinder 21 enters the annular air channel, and the internal gas pressure changes due to the rotation of the rotating drum 26 and the action of the fan plate 27, thereby adjusting the posture of the detection small magnet, and the fixed connection mode of the telescopic pipe 25 ensures that there is no leakage or unstable connection during the gas transmission process.

[0072] Referring to Figures 4-6 , the laser main body 1 is fixed with the bearing seat 3 through a quick release structure, and the quick release structure comprises:

[0073] The connecting column 2 is connected to the bottom surface of the laser body 1 and extends vertically downward along the bottom surface of the laser body 1 and is inserted into the upper chamber.

[0074] The movable plate 7 is vertically slidable along the inner wall of the upper chamber and is sleeved on the outside of the connecting column 2; the bottom surface of the movable plate 7 is provided with a locking sleeve 10 extending into the inside of the upper chamber.

[0075] The limiting sleeve 11 is arranged around the outer wall of the connecting column 2, the bottom surface of the limiting sleeve 11 is fixed to the top surface of the fixed plate 6, and the limiting sleeve 11 is provided with a sliding hole 12 arranged in the radial direction thereof.

[0076] The rolling ball 13 is slidingly connected to the inside of the sliding hole 12, and the outer wall of the connecting column 2 is provided with a clamping groove 9 for clamping the rolling ball 13.

[0077] The locking head 14 is fixed to the side wall of the locking sleeve 10 and corresponds to the sliding hole 12 to limit the rolling ball 13 inside the sliding hole 12.

[0078] Specifically, the laser body 1 is connected to the bearing seat 3 through the connecting column 2, the movable plate 7 is vertically slidable along the inner wall of the upper chamber and is sleeved on the outside of the connecting column 2, when the movable plate 7 is pressed downward, the locking sleeve 10 moves downward, the locking head 14 is separated from the sliding hole 12, the rolling ball 13 moves outward under the limitation of the clamping groove 9 on the outer wall of the connecting column 2, and the locking of the connecting column 2 is released, at this time, the laser body 1 can be taken out or installed on the bearing seat 3, when installing, the connecting column 2 is inserted into the upper chamber, the movable plate 7 is loosened, the reset spring 8 pushes the movable plate 7 to move upward, the locking sleeve 10 drives the locking head 14 to enter the sliding hole 12, the rolling ball 13 is limited in the clamping groove 9, and the quick fixing of the laser body 1 and the bearing seat 3 is realized.

[0079] The quick release structure realizes the convenient installation and disassembly between the laser body 1 and the bearing seat 3, facilitates the maintenance, replacement or debugging of the laser body 1, improves the operation efficiency compared with the traditional complex connection mode, reduces the influence on the overall structure of the measuring device in the installation and disassembly process, is conducive to maintaining the stability and precision of the measuring device, and can more flexibly cope with different working requirements in actual use.

[0080] Referring to Figure 5 The bottom surface of the movable plate 7 is fixedly provided with a reset spring 8, the bottom end of the reset spring 8 is fixedly connected to the top surface of the fixed plate 6, and a plurality of reset springs 8 are arranged in a circumferential array around the periphery of the locking sleeve 10.

[0081] Specifically, one end of the reset spring 8 is fixed to the bottom surface of the movable plate 7, and the other end is fixed to the top surface of the fixed plate 6, and is arranged in a circumferential array around the outer periphery of the lock sleeve 10. When the movable plate 7 is pressed downward to unlock the laser main body 1, the reset spring 8 is compressed to store elastic potential energy. When the movable plate 7 is released, the reset spring 8 releases the elastic potential energy, pushes the movable plate 7 upward, drives the lock sleeve 10 and the lock head 14 to return to the locked position, and realizes the automatic locking function. At the same time, the distributed design of the plurality of reset springs 8 ensures the stability of the movable plate 7 during the rising and falling process, and avoids jamming or tilting caused by unilateral force.

[0082] The reset spring 8 provides an automatic locking function for the quick release structure, simplifies the operation process, and reduces the possibility of human operation errors. The circumferential array distribution ensures the stability of the movement of the movable plate 7, improves the reliability and stability of the quick release structure, further enhances the convenience and safety of the connection between the laser main body 1 and the bearing seat 3, and is beneficial to improve the use efficiency and maintenance convenience of the entire measuring device.

[0083] Referring to Figure 5 A vertical groove is formed on the inner wall of the bearing seat 3 along the axial direction, and a rib is arranged on the side wall of the movable plate 7 corresponding to the vertical groove, and the rib is slidably connected inside the vertical groove.

[0084] Specifically, the rib on the side wall of the movable plate 7 is slidably connected with the vertical groove on the inner wall of the bearing seat 3, which limits the movable plate 7 to only vertically slide along the inner wall of the bearing seat 3, preventing the movable plate 7 from rotating or deviating during the upward and downward movement. This guide structure ensures the accurate cooperation between the lock sleeve 10, the lock head 14 and the sliding hole 12, the ball 13, and ensures the normal operation of the quick release structure. When the movable plate 7 is pressed downward, the rib slides smoothly along the vertical groove, so that the lock sleeve 10 can accurately drive the lock head 14 to disengage from the sliding hole 12 to achieve unlocking. When the reset spring 8 pushes the movable plate 7 upward, the rib guides the movable plate 7 to accurately reset, so that the lock head 14 smoothly enters the sliding hole 12 to complete the locking. The cooperation between the rib and the vertical groove provides accurate guidance for the movable plate 7, improves the reliability and stability of the quick release structure, avoids connection failure or damage caused by unstable movement of the movable plate 7, and ensures the firmness and safety of the connection between the laser main body 1 and the bearing seat 3. It helps to maintain the structural integrity and measurement accuracy of the entire measuring device during use.

[0085] Referring to Figure 1 and Figure 2 The bottom surface of the bearing seat 3 is also connected with an adjusting seat 4, and the bottom surface of the adjusting seat 4 is connected with a tripod 5.

[0086] Specifically, the combination of the adjusting seat 4 and the tripod 5 constitutes an adjustable base for adjusting the level of the laser main body 1. At this time, the level of the base is preliminarily judged by observing the level bubble and the scale mark on the adjusting seat 4. If the bubble in the level bubble is not in the center position or in the marked range, it indicates that the base is tilted. Since the height adjusting mechanism, which has at least three tripods 5 that can independently adjust the height, is connected to the bottom of the adjusting seat 4, the operator can change the length of each tripod 5 by rotating it, thereby gradually making the base tend to be level. The combination of the tripod 5 and the adjusting seat 4 provides comprehensive level adjustment capabilities for the measuring device from coarse adjustment to fine adjustment. The stability of the tripod 5 ensures the reliable support of the measuring device in different environments, and the coarse adjustment function of the adjusting seat 4 provides a good foundation for subsequent precise pneumatic magnetic fine adjustment, so that the entire measuring device can adapt to a wider range of use scenarios, improve the accuracy and reliability of the laser flatness measurement, and also maintain stable measurement performance in complex environments.

[0087] As described above, although the present application has been shown and described with respect to certain preferred embodiments, it is to be understood that the application is not to be limited to the specific embodiments shown and described. Various changes in form and detail can be made without departing from the spirit and scope of the application as defined in the appended claims.

Claims

1. A laser flatness measuring device comprising a laser body and a base for overall support thereof, characterised in that: The base comprises The bearing seat is internally separated into an upper chamber and a lower chamber by a fixed fixed plate, the laser body is detachably arranged in the upper chamber, and an inner sleeve fixed to the bottom surface of the fixed plate is arranged in the lower chamber; The detection seat body is arranged in the lower chamber and has a support portion on the upper surface of the detection seat body, the support portion is inserted into the inner sleeve and coaxial with the inner sleeve, a hinge is hingedly connected to the center of gravity of the top surface of the support portion, and a top end of the hinge is fixed to the fixed plate; The outer sleeve extends upward from the top surface of the detection seat body and surrounds the outside of the inner sleeve, a plurality of combined magnets are arranged on the inner ring surface of the outer sleeve at equal intervals, a permanent magnet plate is arranged on the outer ring surface of the inner sleeve and matches the combined magnets one by one, and the combined magnets and the permanent magnet plate that are opposite to each other repel each other; the combined magnets are composed of a plurality of small magnets that repel each other, and when the small magnets in the combined magnets are close to each other, the repulsion force between the combined magnets and the permanent magnet plate increases; Further comprising a driving assembly for driving the small magnets to gather or disperse, the driving assembly comprises A plurality of rotating cylinders are rotationally connected to the side wall of the outer sleeve and correspond to the combined magnets one by one; A spiral slide is arranged on the front end surface of the rotating cylinder, a plurality of follow-up rods extending along the axis of the rotating cylinder are arranged in the spiral slide, and a guide groove for the follow-up rods to slide is arranged on the inner wall of the outer sleeve; the small magnets are connected to one end of the follow-up rods extending into the inner sleeve of the outer sleeve; The driving assembly further comprises A plurality of fan plates are circumferentially arranged on the outer wall of the rotating cylinder and extend along the radial direction of the rotating cylinder; a containing groove for the fan plates to rotate is arranged on the side wall of the outer sleeve, and a gap between the inner wall of the containing groove and the outer wall of the rotating cylinder forms a sealed annular air channel, and the side of the fan plate away from the rotating cylinder is attached to the inner surface of the annular air channel; A plurality of soft air cylinders are rotationally symmetrically arranged on the upper surface of the support portion, and the top end of the soft air cylinder is fixed to the bottom surface of the fixed plate; A flow channel is arranged on the wall surface of the bearing seat and the fixed plate, one end of the flow channel is in communication with the soft air cylinder, and the other end of the flow channel is in communication with the annular air channel; The flow channel comprises A plurality of conduits are circumferentially arranged on the fixed plate; One end of each conduit is in communication with the soft air cylinder, and the other end of each conduit is connected with a hollow ball, and the conduits are not in communication with each other; A plurality of telescopic pipes are circumferentially arranged on the bearing seat; one end of each telescopic pipe is in communication with the hollow ball, and the other end of each telescopic pipe is in communication with the annular air channel.

2. A laser flatness measuring device as claimed in claim 1, characterized in that: A plurality of embedding grooves are circumferentially arranged on the outer wall of the bearing seat (3), the hollow ball (23) is arranged in the embedding groove, and a foam bead (24) is arranged in the hollow ball (23).

3. A laser flatness measuring device as claimed in claim 1, characterized in that: A connecting hole (31) in communication with the annular air channel is arranged on the outer wall of the outer sleeve (19), and one end of the telescopic pipe (25) away from the hollow ball (23) is fixed in the connecting hole (31).

4. A laser flatness measuring device as claimed in claim 1, characterized in that: The laser body (1) is fixed to the bearing seat (3) through a quick release structure, and the quick release structure comprises A connecting column (2) is connected to the bottom surface of the laser body (1) and extends vertically downward along the bottom surface of the laser body (1) to be inserted into the upper chamber; An activity plate (7) is vertically slidably arranged on the inner wall of the upper chamber and is sleeved on the outside of the connecting column (2); the bottom surface of the activity plate (7) is provided with a lock sleeve (10) extending into the upper chamber; The limiting sleeve (11) is arranged on the outer wall of the connecting column (2), the bottom surface is fixed with the top surface of the fixed plate (6), and the sliding hole (12) is arranged on the limiting sleeve (11) in the radial direction; The ball (13) is slidably connected in the sliding hole (12), and the outer wall of the connecting column (2) is provided with the clamping groove (9) for clamping the ball (13); The lock head (14) is fixed on the side wall of the lock sleeve (10) and corresponds to the sliding hole (12) to limit the ball (13) in the sliding hole (12).

5. A laser flatness measuring device as claimed in claim 4, characterized in that: The bottom surface of the movable plate (7) is fixedly provided with the reset spring (8), the bottom end of the reset spring (8) is fixedly connected with the top surface of the fixed plate (6), and a plurality of reset springs (8) are arranged in a circumferential array around the outer periphery of the lock sleeve (10).

6. A laser flatness measuring device as claimed in claim 5, characterized in that: A vertical groove is arranged on the inner wall of the bearing seat (3) in the axial direction, and a rib is arranged on the side wall of the movable plate (7) and corresponds to the vertical groove, and the rib is slidably connected in the vertical groove.

7. A laser flatness measuring device as claimed in claim 1, characterized in that: The bottom surface of the bearing seat (3) is further connected with the adjusting seat (4), and the bottom surface of the adjusting seat (4) is connected with the tripod (5).

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