Laser flatness measuring device

Abstract

The invention discloses a laser flatness measuring device, and relates to the technical field of laser measurement, the laser flatness measuring device comprises a laser main body and a base for integrally supporting the laser main body, the base comprises a bearing seat, the interior of the base is divided into an upper chamber and a lower chamber by a fixed fixing plate, and the laser main body is detachably arranged in the upper chamber; an inner sleeve fixed to the bottom face of the fixing plate is arranged in the lower cavity. The detection seat body is arranged in the lower cavity, a supporting part is inserted into the inner sleeve and is coaxial with the inner sleeve, a hinge is hinged to the gravity center of the top face of the supporting part, and the top end of the hinge is fixed to the fixing plate. The repulsive force is changed by adjusting the relative positions of the small magnets in the combined magnet, the levelness of the base can be finely adjusted to adapt to placement surfaces with different flatness, flatness measurement of the laser in an accurate horizontal state is ensured, and the accuracy and reliability of flatness measurement of the laser are improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser measurement, in particular to a laser flatness measuring device. Background Art

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

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

[0004] When the measuring device is not level, the incident angle of the laser beam and the receiving angle of the reflected light will change. This angle change will cause errors in the calculated height difference because the angle reference in the trigonometric geometry has changed. For example, if the originally vertically incident laser beam becomes obliquely incident due to the tilt of the device, the position of the reflected light will deviate from the normal position due to the change in the incident angle, making the height difference calculated based on the wrong position inconsistent with the actual flatness, reducing the measurement accuracy.

[0005] Traditional laser flatness measurement devices usually use a relatively simple mechanical base structure to support the measuring equipment. Such bases often lack an effective level adjustment mechanism or have only limited coarse adjustment functions. Common fixed bases cannot automatically adapt and adjust to a precise horizontal state when placed on an 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 the base levelness, measurement errors will be introduced, resulting in inaccurate assessment of the laser flatness. This may not only affect the research and development process of the laser, making it difficult for researchers to accurately determine the real reason for the poor performance of the laser, but also cause a large number of product quality instability problems in the production process, increase production costs and reduce production efficiency.

[0006] In view of this, this application is hereby filed. Summary of the invention

[0007] The object of the present invention is to provide a laser flatness measuring device to solve the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the present invention provides a laser flatness measuring device, comprising a laser body and a base for supporting the laser body as a whole, wherein the base comprises:

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

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

[0011] The outer sleeve extends upward from the top surface of the detection seat body and surrounds the outside of the inner sleeve. The inner ring surface of the outer sleeve is provided with equidistantly arranged combined magnets, and the outer ring surface of the inner sleeve is provided with permanent magnet plates that are matched with the combined magnets one by one, and the facing combined magnets and permanent magnet plates repel each other with the same poles; the combined magnet is composed of a plurality of mutually repelling small magnets, and when the small magnets in the combined magnet are close to each other, the repulsive force between the combined magnet and the permanent magnet plate increases.

[0012] Furthermore, it also includes a driving component for driving a plurality of small magnets to gather or disperse each other, and the driving component includes:

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

[0014] The spiral slideway is provided at the front end of the drum, and a plurality of follower rods extending along the axial direction of the drum are inserted therein, and a guide groove for the follower rods to slide is provided on the inner wall of the outer sleeve; a small magnet is connected to one end of the follower rod extending to the inside of the outer sleeve.

[0015] Furthermore, the driving assembly further comprises:

[0016] The fan plates are distributed in a circumferential array on the outer wall of the drum and extend in the radial direction of the drum. A receiving groove for the fan plates to rotate is provided on the side wall of the outer drum. The gap between the inner wall of the receiving groove and the outer wall of the drum forms a sealed annular air passage. The side of the fan plates away from the drum is in contact with the inner surface of the annular air passage.

[0017] A plurality of soft gas cylinders are arranged on the upper surface of the support portion in a rotationally symmetrical manner, and the top ends of the soft gas cylinders are fixed to the bottom surface of the fixing plate;

[0018] The circulation channel is arranged on the wall surface of the bearing seat and the fixing plate, one end of which is communicated with the soft gas cylinder, and the other end of which is communicated with the annular air channel.

[0019] Furthermore, the circulation channel comprises:

[0020] A plurality of conduits are arranged on a fixed plate in a circular array; one end is connected to a soft gas cylinder and the other end is connected to a hollow ball, and the conduits are not connected to each other;

[0021] A plurality of telescopic tubes are arranged on the bearing seat in a circumferential array; one end of the telescopic tubes is connected to the hollow ball, and the other end is connected to the annular airway.

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

[0023] Furthermore, a connecting hole communicating with the annular airway is formed on the outer wall of the outer sleeve, and one end of the telescopic tube away from the hollow ball is fixed inside the connecting hole.

[0024] Furthermore, the laser body is fixed to the bearing seat through a quick-release structure, and the quick-release structure includes

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

[0026] The movable plate can slide vertically along the inner wall of the upper chamber and is sleeved on the outside of the connecting column; a locking sleeve extending toward the interior of the upper chamber is provided on the bottom surface of the movable plate;

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

[0028] A ball is slidably connected inside the sliding hole, and a slot for the ball to be inserted is provided on the outer wall of the connecting column;

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

[0030] Furthermore, a return spring is fixedly mounted on the bottom surface of the movable plate, the bottom end of the return spring is fixedly connected to the top surface of the fixed plate, a plurality of return springs are provided, and the plurality of return springs are arranged in a circular array around the periphery of the lock sleeve.

[0031] Furthermore, a vertical groove is provided on the inner wall of the bearing seat along its axial direction, and a rib corresponding to the vertical groove is provided on the side wall of the movable plate, and the rib is slidably connected inside the vertical groove.

[0032] Furthermore, the bottom surface of the bearing seat is also connected to an adjustment seat, and the bottom surface of the adjustment seat is connected to a tripod.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. The present invention separates the upper and lower chambers by a fixed plate, the detection base is located in the lower chamber, and its support part is connected to the fixed plate by a hinge to achieve a certain relative rotational freedom. The outer sleeve surrounds the inner sleeve, and the combined magnet and the permanent magnet plate repel each other with the same poles. When the small magnets in the combined magnet are close to 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 and adjusting its posture, so that the detection base can adjust its position relatively flexibly to adapt to different horizontal state requirements, and indirectly ensure that the horizontal measurement environment of the laser body is stable; by adjusting the relative positions of the small magnets in the combined magnet 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 precise horizontal state, which is beneficial to improving the accuracy and reliability of laser flatness measurement.

[0035] 2. In the present invention, when the laser body is not parallel, the inclined fixed plate will squeeze the soft gas cylinder in the corresponding direction. At this time, the soft gas cylinders are of different lengths. The gas in the soft gas cylinder flows into the flow channel, and the fan plates are distributed in a circular array on the outer wall of the rotating cylinder. The gas entering the annular airway through the flow channel can push the fan plates to rotate, and the rotating cylinder rotates accordingly. The rotation of the rotating cylinder can drive multiple follower rods to move along the trajectory of the spiral slideway to drive multiple small magnets to gather, thereby achieving the effect of self-regulation, and enhancing the ability of the entire device to adapt to complex environments and precise measurement requirements. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0039] Figure 4 for Figure 3 A schematic diagram of the front view structure of

[0040] Figure 5 for Figure 4 Schematic diagram of the cross-section structure along the middle section line AA;

[0041] Figure 6 for Figure 5 A magnified view of the structure at center A;

[0042] Figure 7 It is a schematic diagram of the overall structure of the detection base body in the present invention;

[0043] Figure 8 It is a partial structural schematic diagram of the detection base body in the present invention;

[0044] Fig. 9 It is a schematic diagram of the structure of the driving component in the present invention.

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

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] See also Figure 1-Figure 9 The present invention provides a technical solution: a laser flatness measuring device, comprising a laser body 1 and a base for supporting the laser body as a whole, the base comprising:

[0048] The interior of the supporting seat 3 is divided into an upper chamber and a lower chamber by a fixed fixing plate 6 . The laser body 1 is detachably arranged in the upper chamber. The interior of the lower chamber is provided with an inner sleeve 17 fixed to the bottom surface of the fixing plate 6 .

[0049] The detection seat body 15 is arranged in the lower chamber, and a support part 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 part, and the top end of the hinge 16 is fixed to the fixing plate 6.

[0050] The outer sleeve 19 extends upward from the top surface of the detection base body 15 and surrounds the outside of the inner sleeve 17. The inner ring surface of the outer sleeve 19 is provided with equidistantly arranged combined magnets 20, and the outer ring surface of the inner sleeve 17 is provided with permanent magnet plates 18 that are matched one by one with the combined magnets 20, and the facing combined magnets 20 and permanent magnet plates 18 repel each other with the same poles; the combined magnet 20 is composed of a plurality of small magnets that repel each other. When the small magnets in the combined magnet 20 are close to each other, the repulsive force between the combined magnet 20 and the permanent magnet plate 18 increases.

[0051] Specifically, the laser body 1 is placed in the upper chamber of the supporting seat 3, and the upper and lower chambers are separated by the fixing plate 6. The detection seat body 15 is located in the lower chamber, and its supporting part is connected to the fixing plate 6 by a hinge 16 to achieve a certain relative rotational 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 seat body 15 and adjusting its posture, so that the detection seat 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 precise horizontal state, which is beneficial to improving the accuracy and reliability of laser flatness measurement.

[0053] See also Figure 5 , Figure 8 and Fig. 9 , and also includes a driving component for driving a plurality of small magnets to gather or disperse each other, the driving component including:

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

[0055] The spiral slideway 28 is provided at 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 therein, 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 together radially. 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 disperses the small magnets, and the repulsive force changes accordingly, thereby realizing active control of the supporting force and posture of the detection base 15.

[0057] A method for actively adjusting the relative positions of the small magnets in the combined magnet 20 is provided, which can accurately control the magnitude and direction of the magnetic suspension force, and further improve the flexibility and accuracy of adjusting the horizontality of the base. Compared with relying on the distribution changes of the small magnets in the natural state, this driving component can be actively adjusted according to the actual measurement requirements, enhancing the ability of the entire device to adapt to complex environments and precise measurement requirements.

[0058] See also Figure 5 , Figure 7 , Figure 8 and Fig. 9 , the drive components also include:

[0059] The fan plates 27 are distributed in a circular array on the outer wall of the drum 26 and extend radially along the drum 26. A receiving groove for the fan plates 27 to rotate is provided on the side wall of the outer sleeve 19. The gap between the inner wall of the receiving groove and the outer wall of the drum 26 forms a sealed annular air passage. The side of the fan plate 27 away from the drum 26 is in contact with the inner surface of the annular air passage.

[0060] A plurality of soft gas cylinders 21 are rotationally symmetrically arranged on the upper surface of the support portion, and the top ends of the soft gas cylinders 21 are fixed to the bottom surface of the fixing plate 6 .

[0061] The circulation channel is arranged on the wall surface of the bearing seat 3 and the fixing plate 6, one end of which is communicated with the soft gas cylinder 21, and the other end of which is communicated with the annular air channel.

[0062] Specifically, in a natural state, the laser body 1 is in a horizontal state; when the laser body 1 is parallel to the detection base 15; at this time, the soft gas cylinder 21 between the fixed plate 6 and the detection base 15 is the same length; when the laser body 1 is not parallel, the inclined fixed plate 6 will squeeze the soft gas cylinder 21 in the corresponding position. At this time, the soft gas cylinder 21 is of different lengths, and the gas in the soft gas cylinder 21 flows into the flow channel. The fan plates 27 are distributed in a circular array on the outer wall of the rotating drum 26. The gas entering the annular airway through the flow channel can push the fan plates 27 to rotate, and the rotating drum 26 rotates accordingly. The rotation of the rotating drum 26 can drive multiple follower rods 29 to move along the trajectory of the spiral slide 28 to drive multiple small magnets to gather.

[0063] Reference Figure 3 and Figure 5 , the circulation channels include:

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

[0065] A plurality of telescopic tubes 25 are arranged in a circular array on the bearing seat 3 ; one end of the telescopic tubes 25 is connected to the hollow ball 23 , and the other end of the telescopic tubes 25 is connected to the annular air passage.

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

[0067] Specifically, the hollow ball 23 is installed in the embedded groove of the outer wall of the supporting seat 3, and foam beads 24 are arranged inside. When the gas flows in the hollow ball 23, the foam beads 24 will move with the airflow and collide and rub against each other. On the one hand, the foam beads 24 can disperse the impact force of the airflow, so that the pressure change of the gas in the hollow ball 23 is smoother; on the other hand, the presence of the foam beads 24 increases the flow resistance of the gas in the hollow ball 23, further slowing down the gas flow rate, so that the pressure change of the gas when entering the soft gas cylinder 21 is more stable, which helps to accurately control the state of the soft gas cylinder 21 and the posture adjustment of the detection seat 15.

[0068] The effect of the foam beads 24 in the hollow ball 23 can effectively improve the accuracy and stability of gas pressure control, reduce unexpected changes in the levelness of the measuring device caused by external interference or airflow fluctuations, and enhance the anti-interference ability of the entire level adjustment system by optimizing the flow characteristics of the gas in the hollow ball 23, ensuring that the laser flatness measuring device can still maintain a stable and accurate level measurement state under relatively complex environmental conditions.

[0069] It should be noted that when the gas inside the soft gas cylinder 21 enters the hollow ball 23 through the conduit 22, the flow of gas can be used to blow the foam beads 24 to roll irregularly inside the hollow ball 23. The staff can judge whether the foam beads 24 are in the horizontal position by observing the situation of the hollow ball 23, which plays an indicating effect.

[0070] See also Figure 3 and Figure 5 A connecting hole 31 communicating with the annular air passage is formed on the outer wall of the outer sleeve 19 , and one end of the telescopic tube 25 away from the hollow ball 23 is fixed inside the connecting hole 31 .

[0071] Specifically, one end of the telescopic tube 25 is connected to the hollow ball 23, and the other end is fixed in the connecting hole 31 of the annular airway, forming a stable gas transmission channel. The gas can be transmitted through the connecting path between the telescopic tube 25, the hollow ball 23, the conduit 22 and the soft gas cylinder 21, thereby realizing the control of the state of the soft gas cylinder 21. When the gas inside the soft gas cylinder 21 enters the annular airway, the internal air 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 small magnet for detection. The fixed connection method of the telescopic tube 25 ensures that there will be no leakage or unstable connection during the gas transmission process.

[0072] See also Figure 4-Figure 6 The laser body 1 is fixed to the bearing seat 3 through a quick-release structure, and the quick-release structure includes:

[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 cavity.

[0074] The movable plate 7 can slide vertically along the inner wall of the upper chamber and is sleeved on the outside of the connecting column 2; a locking sleeve 10 extending toward the interior of the upper chamber is provided on the bottom surface thereof.

[0075] The limiting sleeve 11 is disposed around the outer wall of the connecting column 2, and its bottom surface is fixed to the top surface of the fixing plate 6. A sliding hole 12 is opened along its radial direction.

[0076] The ball 13 is slidably connected inside the sliding hole 12 , and a slot 9 for the ball 13 to be inserted into is formed on the outer wall of the connecting column 2 .

[0077] The lock head 14 is fixed on the side wall of the lock sleeve 10 and corresponds to the slide hole 12 to restrict the ball 13 inside the slide hole 12 .

[0078] Specifically, the laser body 1 is connected to the bearing seat 3 through the connecting column 2, and the movable plate 7 can slide vertically along the inner wall of the upper chamber and be sleeved on the outside of the connecting column 2. When the movable plate 7 is pressed downward, the locking sleeve 10 moves downward accordingly, and the locking head 14 disengages from the sliding hole 12. The ball 13 moves outward under the restriction of the slot 9 on the outer wall of the connecting column 2, and the lock on the connecting column 2 is released. At this time, the laser body 1 can be removed from the bearing seat 3 or installed. During installation, the connecting column 2 is inserted into the upper chamber, the movable plate 7 is released, and 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, and the ball 13 is restricted in the slot 9, thereby realizing the rapid fixation of the laser body 1 and the bearing seat 3.

[0079] This quick-release structure realizes convenient installation and disassembly between the laser body 1 and the supporting base 3, which is convenient for maintenance, replacement or debugging of the laser body 1. Compared with the traditional complex connection method, it improves the operating efficiency and reduces the impact on the overall structure of the measuring device during installation and disassembly, which is conducive to maintaining the stability and accuracy of the measuring device, and can more flexibly respond to different work requirements in actual use.

[0080] See also Figure 5 A return spring 8 is fixedly installed on the bottom surface of the movable plate 7, and the bottom end of the return spring 8 is fixedly connected to the top surface of the fixed plate 6. A plurality of return springs 8 are provided, and the plurality of return springs 8 are arranged in a circular array around the periphery of the lock sleeve 10.

[0081] Specifically, one end of the return 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 circular array around the periphery of the locking sleeve 10. When the movable plate 7 is pressed downward to unlock the laser body 1, the return spring 8 is compressed to store elastic potential energy; when the movable plate 7 is released, the return spring 8 releases the elastic potential energy, pushes the movable plate 7 upward, and drives the locking sleeve 10 and the lock head 14 to return to the locked position, realizing the automatic locking function. At the same time, the distribution design of multiple return springs 8 ensures the stability of the movable plate 7 during the rising and falling process, and avoids jamming or tilting due to 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. Its circular array distribution ensures the smooth movement of the movable plate 7, improves the reliability and stability of the quick-release structure, and further enhances the convenience and safety of the connection between the laser body 1 and the supporting seat 3, which is conducive to improving the use efficiency and maintenance convenience of the entire measuring device.

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

[0084] The ribs on the side walls of the movable plate 7 are slidably connected with the vertical grooves on the inner wall of the bearing seat 3, limiting the movable plate 7 to slide vertically only along the inner wall of the bearing seat 3, preventing the movable plate 7 from rotating or deviating during the up and down movement. This guiding structure ensures the accurate cooperation between the lock sleeve 10, the lock head 14 and the sliding hole 12, and the ball 13, ensuring the normal operation of the quick-release structure. When the movable plate 7 is pressed downward, the ribs slide down smoothly along the vertical grooves, 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 to move upward, the ribs can guide the movable plate 7 to accurately reset, so that the lock head 14 can smoothly enter the sliding hole 12 to complete the locking. The cooperation between the ribs and the vertical grooves provides precise 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, ensures the firmness and safety of the connection between the laser body 1 and the bearing seat 3, and helps to maintain the structural integrity and measurement accuracy of the entire measuring device during use.

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

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

[0087] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes may be made to it in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A laser flatness measuring device, comprising a laser body (1) and a base for supporting the laser body as a whole, characterized in that: The base comprises: The bearing seat (3) is internally divided into an upper chamber and a lower chamber by a fixed fixing plate (6), the laser body (1) is detachably arranged in the upper chamber, and an inner sleeve (17) fixed to the bottom surface of the fixing plate (6) is arranged inside the lower chamber; The detection seat (15) is arranged in the lower chamber, and 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 fixing plate (6); 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). Combination magnets (20) arranged at equal intervals are arranged on the inner ring surface of the outer sleeve (19). Permanent magnetic plates (18) that are matched with the combination magnets (20) are arranged on the outer ring surface of the inner sleeve (17). The facing combination magnets (20) and the permanent magnetic plates (18) have the same poles and repel each other. The combination magnet (20) is composed of a plurality of small magnets that repel each other. When the small magnets in the combination magnet (20) are close to each other, the repulsive force between the combination magnet (20) and the permanent magnetic plates (18) increases.

2. A laser flatness measuring device as claimed in claim 1, characterized in that: It also includes a driving assembly for driving a plurality of small magnets to gather or disperse each other, and the driving assembly includes: A plurality of rotating drums (26) are rotatably connected to the side wall of the outer sleeve (19) and correspond one to one with the combined magnets (20); A spiral slideway (28) is provided at the front end surface of the rotating drum (26), and a plurality of follower rods (29) extending along the axial direction of the rotating drum (26) are inserted therein, 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).

3. A laser flatness measuring device as claimed in claim 2, characterized in that: The drive assembly also includes: 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); a receiving groove for the fan plates (27) to rotate is provided on the side wall of the outer sleeve (19); a gap between the inner wall of the receiving groove and the outer wall of the rotating drum (26) forms a sealed annular air passage; a side of the fan plates (27) away from the rotating drum (26) is in contact with the inner surface of the annular air passage; A plurality of soft gas cylinders (21) are arranged on the upper surface of the support portion in a rotationally symmetrical manner, and the top ends of the soft gas cylinders (21) are fixed to the bottom surface of the fixing plate (6); The circulation channel is arranged on the wall surfaces of the bearing seat (3) and the fixing plate (6), one end of which is in communication with the soft gas cylinder (21) and the other end of which is in communication with the annular air channel.

4. A laser flatness measuring device as claimed in claim 3, characterized in that: The circulation channel comprises: A plurality of conduits (22) are arranged in a circular array on a fixed plate (6); one end of each conduit is connected to a soft gas cylinder (21), and the other end is connected to a hollow ball (23); and the conduits (22) are not connected to each other; A plurality of telescopic tubes (25) are arranged in a circular array on the bearing seat (3); one end of each tube is connected to the hollow ball (23), and the other end of each tube is connected to the annular air passage.

5. A laser flatness measuring device as claimed in claim 4, characterized in that: A plurality of embedding grooves are circumferentially formed on the outer wall of the bearing seat (3), the hollow balls (23) are installed inside the embedding grooves, and a foam bead (24) is arranged inside each of the hollow balls (23).

6. A laser flatness measuring device as claimed in claim 4, characterized in that: A connecting hole (31) communicating with the annular air passage is formed on the outer wall of the outer sleeve (19), and one end of the telescopic tube (25) away from the hollow ball (23) is fixed inside the connecting hole (31).

7. A laser flatness measuring device as claimed in claim 1, characterized in that: The laser body (1) is fixed to the bearing seat (3) via a quick-release structure, wherein 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) and is inserted into the upper chamber; The movable plate (7) can slide vertically along the inner wall of the upper chamber and is sleeved on the outside of the connecting column (2); a locking sleeve (10) extending toward the interior of the upper chamber is provided on the bottom surface thereof; A limiting sleeve (11) is arranged around the outer wall of the connecting column (2), the bottom surface of which is fixed to the top surface of the fixing plate (6), and a sliding hole (12) is provided on the limiting sleeve along its radial direction; A ball (13) is slidably connected inside the sliding hole (12), and a slot (9) for the ball (13) to be inserted is provided on the outer wall of the connecting column (2); The lock head (14) is fixed on the side wall of the lock sleeve (10) and corresponds to the slide hole (12) to restrict the ball (13) inside the slide hole (12).

8. A laser flatness measuring device as claimed in claim 7, characterized in that: A return spring (8) is fixedly mounted on the bottom surface of the movable plate (7), and the bottom end of the return spring (8) is fixedly connected to the top surface of the fixed plate (6). A plurality of return springs (8) are provided, and the plurality of return springs (8) are arranged in a circular array around the periphery of the lock sleeve (10).

9. A laser flatness measuring device as claimed in claim 7, characterized in that: A vertical groove is provided on the inner wall of the bearing seat (3) along its axial direction, and a rib corresponding to the vertical groove is provided on the side wall of the movable plate (7), and the rib is slidably connected inside the vertical groove.

10. The laser flatness measuring device according to claim 1, characterized in that: The bottom surface of the bearing seat (3) is also connected to an adjustment seat (4), and the bottom surface of the adjustment seat (4) is connected to a tripod (5).

Images