An adaptive non-contact laser thickness detector

Abstract

The present invention discloses an adaptive non-contact laser thickness detector, belonging to the technical field of laser thickness detectors. It includes a support table and a lead screw base and a shaft rod base fixedly installed on its upper surface. A servo motor is also fixedly installed on the upper surface of the support table, and one end of a lead screw coaxially connected to the shaft end of the servo motor is fixedly connected. The other end of the lead screw is connected to the lead screw base by a bearing. The lead screw movably penetrates through the clamping seat, and the clamping seat is fixedly connected to the upper surface of the support table. The lead screw threadedly penetrates through the lower protrusion of the detection seat, and pulley assemblies are symmetrically installed on the lower surface of the detection seat. This invention can quickly clamp and release the object to be measured, thereby improving the convenience of detection. In addition, during the process of clamping and releasing the object to be measured, the laser thickness detector will also be adjusted synchronously, thus eliminating the subsequent process of separately adjusting the laser thickness detector, which helps to improve the detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of laser thickness detectors, and particularly to an adaptive non-contact laser thickness detector. Background Art

[0002] The laser thickness detector uses the triangulation method and the adaptive compensation technology to measure the thickness of an object. The triangulation method means that two laser displacement sensors are used to shoot at each other from top and bottom to measure the positions of the upper and lower surfaces of the object to be measured respectively, and the difference is calculated to obtain the thickness. The adaptive compensation technology means that for the measurement of transparent objects, the oblique incidence or confocal method is adopted, and the algorithm is combined to compensate the influence of position change on the accuracy.

[0003] The existing laser thickness detectors are mainly used to measure the thickness of plate or disc structures. When in use, there are still the following technical problems, such as:

[0004] When the existing laser thickness detector is in use, it is not convenient to adaptively adjust the position of the measurement probe. For example, a disclosed automatic laser thickness detector with the publication number of CN221593792U controls the position of the measurement probe through an electric telescopic rod. After the object to be measured is clamped, the position of the measurement probe still needs to be adjusted separately, which reduces the detection efficiency. In addition, when clamping the object to be measured, in the above-mentioned disclosed technical solution, it is realized by rotating a screw, which makes it more cumbersome and less convenient whether clamping or loosening the object to be measured.

[0005] Therefore, an adaptive non-contact laser thickness detector is needed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide an adaptive non-contact laser thickness detector to solve the problems that the existing non-contact laser thickness detector is not convenient enough when clamping the object to be measured and is also rather troublesome when adjusting the position of the measurement probe as mentioned in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] An adaptive non-contact laser thickness detector comprises a support platform and a screw seat and an axis rod seat fixedly mounted on the upper surface thereof, a clamping seat fixed on the upper surface of the support platform, and a detection seat slidably connected to the upper surface of the support platform, the clamping seat and the detection seat are each provided with two mounting plates, and each mounting plate is movably penetrated by a corresponding support plate, the clamping seat and the detection seat are each provided with an adjustment mechanism, which is respectively used to adjust the relative positions of the two support plates indirectly connected to the clamping seat and the detection seat, so as to help clamp objects to be measured of different thicknesses, a control mechanism connected to the adjustment mechanism is installed between the two axis rod seats, which is used to synchronously control the two adjustment mechanisms, so as to facilitate convenient and rapid control of the two adjustment mechanisms.

[0009] Preferably, a servo motor is installed on the upper surface of the support table, and one end of the screw is fixedly connected to its shaft end, the other end of the screw is supported by a bearing on the screw seat, and the screw movably passes through the clamping seat, and the screw thread passes through the lower end protrusion of the detection seat for adjusting the position of the detection seat, and a pulley assembly is symmetrically installed on the lower surface of the detection seat, and two slideways are symmetrically arranged on the upper surface of the support table, and the two slideways are respectively slidably connected to the two pulley assemblies.

[0010] Preferably, the adjustment mechanism includes a control shaft arranged on the clamping seat and the detection seat, and the clamping seat and the detection seat are penetrated by the control shaft bearings thereon, each of the control shafts is threadedly connected with two symmetrical limit blocks, and each limit block is fixedly connected with a follower shaft, the clamping seat and the detection seat are each provided with a strip groove 1 passing through the inner and outer sides thereof, and two strip grooves 1 are provided on the clamping seat and the detection seat, each of the support plates is provided with an oblique groove, and each of the mounting plates is also provided with a strip groove 2 passing through the upper and lower sides thereof, the follower shaft movably passes through the corresponding strip groove 1, the oblique groove and the strip groove 2 in turn, a connecting strip is provided at the end of the support plate on the detection seat, and a laser thickness gauge is installed on the connecting strip for laser thickness detection of the object.

[0011] Preferably, the control shaft is provided with two sections of threads which are symmetrical about a vertical line therein, so as to enable the two limit blocks thereon to move toward or away from each other when the control shaft rotates.

[0012] Preferably, the follower shaft is n-shaped, and is used to simultaneously penetrate the strip groove 1, the inclined groove and the strip groove 2.

[0013] Preferably, the inner widths of the clamping seat and the detection seat are the same, and the inner widths of the clamping seat and the detection seat match the widths of the limit blocks arranged inside them. The end of the support plate on the clamping seat is fixedly connected to a support bar, and one end of an L-shaped support arm is arranged at each of the four corners of the support bar, and the other end of the support arm is connected to a pressure block by a universal ball shaft.

[0014] Preferably, a connecting strip is fixedly connected to the end of the support plate on the detection base. Each mounting plate is provided with a strip-shaped through hole for the corresponding support plate to movably penetrate through, and the size and shape of the strip-shaped through hole respectively match the size and shape of the transverse cross-section of the corresponding support plate.

[0015] Preferably, the control mechanism includes a shaft rod bearing-connected to two shaft rod seats. One of the two ends of the shaft rod penetrates through the corresponding shaft rod seat by bearing and is connected to a rocker. A first worm coaxial with the shaft rod is fixedly penetrated through the shaft rod, and a second worm coaxial with the shaft rod is also movably penetrated through the shaft rod. The first worm and the second worm are respectively meshed and connected with a first worm gear and a second worm gear, and the first worm gear and the second worm gear are respectively coaxially and fixedly connected to the ends of the control shafts on the clamping seat and the detection base. The shaft rod is also movably penetrated through a synchronous sleeve, and both the second worm gear and the second worm are arranged inside the synchronous sleeve. The synchronous sleeve is also penetrated through by the control shaft bearing on the detection base, and the synchronous sleeve is also bearing-connected to the second worm inside it.

[0016] Preferably, the shaft rod is a strip-shaped prismatic structure. The second worm is provided with a prismatic through hole penetrating through its two ends, and the prismatic through hole is nested with the strip-shaped prismatic structure in a matching manner.

[0017] Preferably, the height of the upper pressing block is lower than the height of the upper laser thickness gauge, and the height of the lower pressing block is higher than the height of the lower laser thickness gauge.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: The adaptive non-contact laser thickness detector can quickly clamp and release the object to be measured, thereby improving the convenience of detection. In addition, during the process of clamping and releasing the object to be measured, the laser thickness gauge will also be adjusted synchronously, thus eliminating the subsequent process of separately adjusting the laser thickness gauge, which helps to improve the detection efficiency:

[0019] 1. By rotating the shaft rod, the first worm can drive the first worm gear to rotate, and then drive the control shaft on the clamping seat to rotate, so that the two limit blocks on it move closer to or away from each other. Then, through the connection of the follower shaft and the inclined groove, the two support plates on the clamping seat can move closer to or away from each other, realizing that the upper and lower pressing blocks respectively press against the upper and lower surfaces of the object to be measured, thereby realizing the clamping of the object to be measured. Since only by rotating the shaft rod through the rocker can the process of clamping and releasing the object to be measured be realized, the convenience of detection is improved;

[0020] 2. During the rotation of the shaft rod, the second worm gear can also drive the second worm to rotate, thereby driving the control shaft on the detection seat to rotate, causing the two limit blocks thereon to move closer to or away from each other. Furthermore, through the connection between the follower shaft and the inclined slot, the two support plates on the clamping seat can be moved closer to or away from each other, enabling the laser thickness gauges in the upper and lower directions to approach the upper and lower surfaces of the object to be detected respectively. Thus, there is no need to separately adjust the position of the laser thickness gauge, which helps to improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a front view structural schematic diagram of the present invention;

[0022] Figure 2 is a rear view structural schematic diagram of the present invention;

[0023] Figure 3 is a partial sectional view structural schematic diagram of the present invention;

[0024] Figure 4 is a connection structural schematic diagram of the detection seat and the pulley assembly of the present invention;

[0025] Figure 5 is the present invention Figure 4 magnified structural schematic diagram of point A therein;

[0026] Figure 6 is a sectional view structural schematic diagram of the detection seat of the present invention;

[0027] Figure 7 is a connection structural schematic diagram of the support plate and the pressing block of the present invention;

[0028] Figure 8 is a connection structural schematic diagram of the detection seat and the laser thickness gauge of the present invention;

[0029] Figure 9 is the present invention Figure 8 magnified structural schematic diagram of point B therein.

[0030] In the figure: 1. Support table; 2. Lead screw seat; 3. Shaft rod seat; 4. Slideway; 5. Lead screw; 6. Clamping seat; 7. Detection seat; 8. Synchronous sleeve; 9. Servo motor; 10. Shaft rod; 11. First worm; 12. First worm gear; 13. Second worm gear; 14. Second worm; 15. Support plate; 16. Control shaft; 17. Mounting plate; 18. First strip-shaped groove; 19. Pulley assembly; 20. Connecting strip; 21. Laser thickness gauge; 22. Inclined slot; 23. Follower shaft; 24. Second strip-shaped groove; 25. Limit block; 26. Support strip; 27. Support arm; 28. Pressing block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1-9 , the present invention provides the following technical solutions:

[0033] Embodiment 1: To solve the problem that it is relatively cumbersome and inconvenient when the conventional laser thickness detector clamps or releases the object to be detected, the following technical solutions are provided. Specifically, an adaptive non-contact laser thickness detector includes a support table 1, a lead screw seat 2 and a shaft seat 3 fixedly installed on its upper surface, and further includes a clamping seat 6 fixed on the upper surface of the support table 1 and a detection seat 7 slidably connected to the upper surface of the support table 1. Two mounting plates 17 are provided on both the clamping seat 6 and the detection seat 7, and a corresponding support plate 15 is movably penetrated through each mounting plate 17. Adjusting mechanisms are provided on both the clamping seat 6 and the detection seat 7 respectively for adjusting the relative positions of the two support plates 15 indirectly connected on the clamping seat 6 and the detection seat 7, which helps to clamp the objects to be detected with different thicknesses.

[0034] A servo motor 9 is installed on the upper surface of the support table 1, and one end of a lead screw 5 is fixedly connected to its shaft end. The other end of the lead screw 5 is supported by a bearing on the lead screw seat 2, and the lead screw 5 movably penetrates through the clamping seat 6 and threadedly penetrates through the lower protrusion of the detection seat 7 for adjusting the position of the detection seat 7. Pulley assemblies 19 are symmetrically installed on the lower surface of the detection seat 7, and two slide ways 4 are symmetrically arranged on the upper surface of the support table 1, and the two slide ways 4 are respectively slidably connected to the two pulley assemblies 19.

[0035] The adjusting mechanism includes control shafts 16 provided on both the clamping seat 6 and the detection seat 7, and both the clamping seat 6 and the detection seat 7 are penetrated by the control shafts 16 on them through bearings. Symmetrically arranged two limit blocks 25 are threadedly connected to each control shaft 16, and a follower shaft 23 is fixedly connected to each limit block 25. Both the clamping seat 6 and the detection seat 7 are provided with a first strip-shaped groove 18 penetrating through their inner and outer sides, and two first strip-shaped grooves 18 are provided on both the clamping seat 6 and the detection seat 7. An inclined groove 22 is provided on each support plate 15, and a second strip-shaped groove 24 penetrating through its upper and lower sides is further provided on each mounting plate 17. The follower shaft 23 sequentially passes through the corresponding first strip-shaped groove 18, inclined groove 22, and second strip-shaped groove 24. A connecting strip 20 is provided at the end of the support plate 15 on the detection seat 7, and a laser thickness gauge 21 is installed on the connecting strip 20 for laser thickness detection of an object. During use, by rotating the control shaft 16, the two limit blocks 25 on it are driven to move closer to or away from each other. During this process, the follower shaft 23 connected to the limit block 25 moves together with it. Since the follower shaft 23 passes through the inclined inclined groove 22 movably, the support plate 15 provided with the inclined groove 22 will move. When the two support plates 15 on the clamping seat 6 move closer to each other, the upper and lower pressure blocks 28 will respectively approach the upper and lower surfaces of the object to be detected, so as to clamp and fix the object to be detected. Since the control shaft 16 on the clamping seat 6 rotates by driving the worm wheel 12 to rotate through the first worm 11, and the worm wheel 12 rotates together with the shaft rod 10, only the shaft rod 10 needs to be rotated throughout the process, which can improve the convenience of clamping and releasing the object to be detected, and further improve the convenience of detection. Two sections of threads symmetric about its vertical bisector are provided on the control shaft 16 for moving the two limit blocks 25 on it towards or away from each other when the control shaft 16 rotates. The follower shaft 23 is in an n shape for passing through the first strip-shaped groove 18, inclined groove 22, and second strip-shaped groove 24 simultaneously. The inner widths of the clamping seat 6 and the detection seat 7 are the same, and the inner widths of the clamping seat 6 and the detection seat 7 match the widths of the limit blocks 25 provided inside them. The end of the support plate 15 on the clamping seat 6 is fixedly connected with a support strip 26, and one ends of L-shaped support arms 27 are provided at the four corners of the support strip 26. The other ends of the support arms 27 are connected to the pressure block 28 by universal ball shafts.

[0036] A connecting strip 20 is fixedly connected to the end of the support plate 15 on the detection seat 7. Each mounting plate 17 is provided with a strip-shaped through hole for the corresponding support plate 15 to pass through movably, and the size and shape of the strip-shaped through hole respectively match the size and shape of the transverse cross-section of the corresponding support plate 15. The height of the upper pressure block 28 is lower than the height of the upper laser thickness gauge 21, and the height of the lower pressure block 28 is higher than the height of the lower laser thickness gauge 21.

[0037] Embodiment 2: To solve the problem that the conventional laser thickness detector needs to separately adjust the position of the measurement probe, resulting in low detection efficiency, the following technical solution is provided. Specifically, a control mechanism connected to the adjustment mechanism is installed between the two shaft rod seats 3 for synchronously controlling the two adjustment mechanisms, which is conducive to conveniently and quickly controlling the two adjustment mechanisms.

[0038] The control mechanism includes a shaft rod 10 bearing-connected to the two shaft rod seats 3. One of the two ends of the shaft rod 10 passes through the corresponding shaft rod seat 3 by bearing and is connected to a rocker. A worm one 11 coaxial with it is fixedly penetrated through the shaft rod 10, and a worm two 14 coaxial with it is also movably penetrated through the shaft rod 10. The worm one 11 and the worm two 14 are respectively meshed and connected with a worm gear one 12 and a worm gear two 13. The worm gear one 12 and the worm gear two 13 are respectively coaxially and fixedly connected to the ends of the control shafts 16 on the clamping seat 6 and the detection seat 7. The shaft rod 10 also passes through a synchronous sleeve 8 movably. Both the worm gear two 13 and the worm two 14 are arranged inside the synchronous sleeve 8. The synchronous sleeve 8 is also penetrated by the control shaft 16 on the detection seat 7 by bearing, and the synchronous sleeve 8 is also bearing-connected to the worm two 14 inside it. During use, the worm two 14 will rotate synchronously with the shaft rod 10, and the worm two 14 can move on the shaft rod 10. Therefore, during the process of clamping the object to be detected, the control shaft 16 on the detection seat 7 will also rotate together, and then the laser thickness gauges 21 in the upper and lower positions can be driven to approach each other, so as to approach the upper and lower surfaces of the object to be detected, facilitating the detection of the thickness of the object. Since the position of the laser thickness gauge 21 does not need to be adjusted separately later, the time for separately adjusting the laser thickness gauge 21 in the past can be saved, which helps to improve the detection efficiency. The shaft rod 10 is a bar-shaped prismatic structure. The worm two 14 is provided with a prismatic through hole penetrating through its two ends, and the prismatic through hole is nested with the bar-shaped prismatic structure in a fitting manner.

[0039] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0040] 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 principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive non-contact laser thickness detector, comprising a support table (1), a lead screw seat (2) and a shaft seat (3) fixedly installed on its upper surface, further comprising a clamping seat (6) fixed on the upper surface of the support table (1), and a detection seat (7) slidably connected to the upper surface of the support table (1), characterized in that: The clamping seat (6) and the detection seat (7) are both provided with two mounting plates (17), and each mounting plate (17) is movably penetrated by a corresponding support plate (15), and the clamping seat (6) and the detection seat (7) are both provided with an adjustment mechanism, which is used to synchronously and separately adjust the relative positions of the two support plates (15) indirectly connected to the clamping seat (6) and the detection seat (7), so that objects to be tested with different thicknesses can be clamped and detected respectively; The adjustment mechanism comprises an inclined groove (22) provided on each support plate (15), a follower shaft (23) passing through the inclined groove (22) and used to drive the support plate (15) to move in a vertical direction by moving the follower shaft (23) relative to the inclined groove (22), and the adjustment mechanism also comprises a control shaft (16) provided on the clamping seat (6) and the detection seat (7), and the clamping seat (6) and the detection seat (7) are both passed through by the control shaft (16) bearing thereon, and each of the control shafts (16) is threadedly connected to two symmetrical limit blocks (25), and the follower shaft (23) is fixed to the corresponding limit block (25). The clamping seat (6) and the detection seat (7) are both provided with a strip groove (18) penetrating the inner and outer sides thereof, and two strip grooves (18) are provided on the clamping seat (6) and the detection seat (7), and each of the mounting plates (17) is also provided with a strip groove (24) penetrating the upper and lower sides thereof, and the follower shaft (23) is movable and passes through the corresponding strip groove (18), the inclined groove (22) and the strip groove (24) in sequence, and a connecting strip (20) is provided at the end of the support plate (15) on the detection seat (7), and a laser thickness gauge (21) is installed on the connecting strip (20) for performing laser thickness detection on the object; A control mechanism connected to the adjustment mechanism is installed between the two shaft rod seats (3) for synchronously controlling the two adjustment mechanisms. The control mechanism comprises a shaft rod (10) connected to the two shaft rod seats (3) by bearings, and one of the two ends of the shaft rod (10) is connected to the rocker after the bearing passes through the corresponding shaft rod seat (3). A worm gear (11) coaxial with the shaft rod (10) is fixedly passed through the shaft rod (10), and a worm gear (14) coaxial with the shaft rod (10) is also movably passed through the shaft rod (10). The worm gear (11) and the worm gear (14) are respectively connected to the ... The first wheel (12) and the second worm wheel (13) are meshingly connected, and the first worm wheel (12) and the second worm wheel (13) are coaxially fixedly connected to the ends of the control shaft (16) on the clamping seat (6) and the detection seat (7), respectively. The shaft (10) is also movably penetrated by the synchronous sleeve (8), and the second worm wheel (13) and the second worm (14) are both arranged inside the synchronous sleeve (8). The synchronous sleeve (8) is also penetrated by the control shaft (16) bearing on the detection seat (7), and the synchronous sleeve (8) is also connected to the second worm (14) bearing inside it.

2. The adaptive non-contact laser thickness detector according to claim 1, wherein: A servo motor (9) is mounted on the upper surface of the support table (1), and one end of a lead screw (5) is fixedly connected to the shaft end thereof. The other end of the lead screw (5) is supported by a lead screw seat (2) through a bearing, and the lead screw (5) movably penetrates through a clamping seat (6) and threadedly penetrates through the lower protrusion of a detection seat (7) for adjusting the position of the detection seat (7). Pulley assemblies (19) are symmetrically mounted on the lower surface of the detection seat (7). Two slide ways (4) are symmetrically arranged on the upper surface of the support table (1), and the two slide ways (4) are respectively slidably connected to the two pulley assemblies (19).

3. An adaptive non-contact laser thickness detector according to claim 2, characterized in that: Two sections of threads symmetrical about the vertical bisector are arranged on the control shaft (16) for enabling two limit blocks (25) thereon to move towards or away from each other when the control shaft (16) rotates.

4. An adaptive non-contact laser thickness detector according to claim 3, characterized in that: The follower shaft (23) is in an n shape for simultaneously penetrating through a first strip-shaped groove (18), an inclined groove (22) and a second strip-shaped groove (24).

5. An adaptive non-contact laser thickness detector according to claim 4, characterized in that: The inner widths of the clamping seat (6) and the detection seat (7) are the same, and the inner widths of the clamping seat (6) and the detection seat (7) match the width of the limit blocks (25) arranged inside. One end of a support bar (26) is fixedly connected to the end of a support plate (15) on the clamping seat (6), and one ends of L-shaped support arms (27) are arranged at the four corners of the support bar (26). The other ends of the support arms (27) are connected to a pressing block (28) through universal ball shafts.

6. The adaptive non-contact laser thickness detector according to claim 5, wherein: One end of a connecting bar (20) is fixedly connected to the end of a support plate (15) on the detection seat (7). Strip-shaped through holes for the corresponding support plates (15) to movably penetrate through are arranged on each mounting plate (17), and the sizes and shapes of the strip-shaped through holes respectively match the sizes and shapes of the transverse cross-sections of the corresponding support plates (15).

7. An adaptive non-contact laser thickness detector according to claim 6, characterized in that: The shaft rod (10) has a strip-shaped prism structure. A prism-shaped through hole penetrating through both ends thereof is arranged on the second worm (14), and the prism-shaped through hole is nested with the strip-shaped prism structure in a matching manner.

8. An adaptive non-contact laser thickness detector according to claim 7, characterized in that: The height of the upper pressing block (28) is lower than the height of the upper laser thickness gauge (21), and the height of the lower pressing block (28) is higher than the height of the lower laser thickness gauge (21).

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