A multi-point thickness gauge for sheet material

Abstract

The utility model discloses a kind of multi-point thickness gauge of board, it is related to thickness gauge technical field, including workbench, laser ranging sensor and L-shaped extrusion plate, the utility model is limited by setting component, clamping plate compaction boss can prevent moving relative to workbench, to limit the position of laser ranging sensor, pull handle drives clamping plate and is away from boss simultaneously can remove the limit of limit component to laser ranging sensor, it is convenient to move left and right vertical plate and adjust the position of laser ranging sensor, by setting rubber non-slip pad, rubber non-slip pad can play buffering action when clamping plate is close to boss, rubber non-slip pad is compressed when clamping plate compaction boss, to avoid removing the limit of limit component to laser ranging sensor due to accidental touch handle, by setting transmission component, rotating unilateral knob can drive the L-shaped extrusion plate of left and right sides simultaneously mutually close or mutually far away, improve the efficiency of clamping and fixing to board.

Description

Technical Field

[0001] This utility model relates to the field of thickness gauge technology, and in particular to a multi-point thickness gauge for sheet metal. Background Technology

[0002] A thickness gauge is an instrument used to determine the thickness of a material itself or the thickness of a coating layer on its surface. The thickness of some sheet materials must be measured during manufacturing and repair in order to understand the material's thickness specifications, uniformity at various points, and the degree of corrosion and wear. The thickness of the coating layer on the surface of some sheet materials needs to be measured to ensure product quality and production safety. A laser thickness gauge uses the principle of laser reflection to measure the thickness of a product by measuring and observing the micro-geometry of the surface of a machined part in mechanical manufacturing based on the optical sectioning method. It is a non-contact dynamic measuring instrument.

[0003] For example, the utility model disclosed in CN221593793U is a high-precision multi-point thickness gauge for sheet metal. It measures the distance between the upper and lower sides of the sheet metal and the laser distance measuring sensor by synchronously activating the laser distance measuring sensor on both sides. The thickness of the sheet metal is calculated, so that sheet metal with a large thickness can be detected. The synchronous movement of the laser distance measuring sensor can facilitate the thickness measurement of multiple points.

[0004] The existing technology still has the following problems when used:

[0005] The device moves the laser rangefinder sensor left and right by moving a vertical plate along a slide bar using a handle. However, after moving the laser rangefinder sensor to the designated position by moving the vertical plate, the vertical plate is easily affected by external factors and sways left and right, causing the laser rangefinder sensor to shift. This changes the measurement point of the laser rangefinder sensor and affects the measurement results. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model provides a multi-point thickness gauge for plates to solve the technical problems mentioned in the background.

[0007] To solve the above technical problems, this utility model provides the following technical solution: a multi-point thickness gauge for sheet metal, including a worktable, a laser range sensor and an L-shaped extrusion plate, wherein symmetrical laser range sensors are arranged above and below the worktable, and symmetrical L-shaped extrusion plates are arranged inside the worktable;

[0008] The limiting component is located in front of the worktable. The limiting component can limit the position of the laser range sensor after it moves left or right.

[0009] Rubber anti-slip mats are symmetrically arranged in front of the workbench. The rubber anti-slip mats can act as a buffer when fixing the laser rangefinder.

[0010] The transmission assembly is located on the top surface of the worktable. The transmission assembly can drive the L-shaped extrusion plates to move closer or further apart simultaneously.

[0011] As a preferred embodiment of this utility model, symmetrical convex plates are fixedly arranged on the front and rear sides of the worktable, and symmetrical vertical plates are slidably connected to the front and rear sides of the worktable. Each vertical plate has a groove adapted to the convex plate on the side that is close to each other. The convex plate is slidably connected to the vertical plate through the groove. Symmetrical horizontal plates are fixedly arranged between the sides that are close to each other of the vertical plates. Each horizontal plate has an electric slide rail on the side that is close to each other. An electric slider is installed inside the electric slide rail. The electric slider is fixedly connected to the laser rangefinder sensor. A control panel is installed on the side of the vertical plate.

[0012] As a preferred technical solution of this utility model, the limiting component includes a cover plate, a handle, an insert rod, a connecting rod, a clamping plate, a guide rod, and a spring. A cover plate is provided in front of the vertical plate, a handle is fixedly provided on the front of the cover plate, symmetrical insert rods are fixedly provided on the back of the cover plate, symmetrical connecting rods are hinged to the back of the cover plate, and a clamping plate is hinged to the other end of the connecting rod. A guide rod and a spring are fixedly provided on the opposite sides of the clamping plates.

[0013] As a preferred technical solution of this utility model, the front of the vertical plate is symmetrically provided with slots for fitting the insertion rod. The insertion rod is slidably connected to the vertical plate through the slots. The sides of the clamping plates that are close to each other are fixedly connected to rubber anti-slip pads. A through groove is provided through the front of the vertical plate. The top and bottom surfaces of the through groove are connected to guide grooves for fitting guide rods. The guide rod is slidably connected to the vertical plate through the guide grooves. The end of the spring away from the clamping plate is fixedly connected to the inner wall of the through groove.

[0014] As a preferred technical solution of this utility model, the transmission assembly includes a knob, a threaded rod, a first fixed plate, a first bevel gear, a second bevel gear, a sleeve, a second fixed plate, a rotating rod, and a transmission belt. Symmetrical knobs are provided above the worktable. Threaded rods are fixedly provided on the sides of the knobs that are close to each other. A first bevel gear is fixedly provided on the outside of the threaded rod. A second bevel gear meshes with the outside of the first bevel gear. A rotating rod is fixedly provided on the side of the second bevel gear. A transmission belt is sleeved on the outside of the rotating rod. A sleeve is threadedly connected to the outside of the threaded rod. Symmetrical first and second fixed plates are fixedly provided on the top surface of the worktable.

[0015] As a preferred embodiment of this utility model, the threaded rod passes through the first fixed plate and is rotatably connected to the first fixed plate through a bearing; the sleeve passes through the second fixed plate and is slidably connected to the second fixed plate; the sleeves are respectively fixedly connected to the L-shaped extrusion plate on their adjacent sides; a plurality of symmetrical third fixed plates are fixedly provided on the top surface of the workbench; the rotating rod passes through the third fixed plate and is rotatably connected to the third fixed plate through a bearing.

[0016] Compared with the prior art, the beneficial effects that this utility model can achieve are:

[0017] This invention features a limiting component. The clamping plate presses against the convex plate, preventing the vertical plate from moving relative to the worktable and thus limiting the position of the laser rangefinder. Pulling the handle moves the clamping plate away from the convex plate, releasing the limiting component's restriction on the laser rangefinder, allowing for easy left and right movement of the vertical plate to adjust the sensor's position. A rubber anti-slip pad acts as a buffer when the clamping plate approaches the convex plate; when the clamping plate presses against the convex plate, the pad is compressed, preventing accidental release of the limiting component's restriction on the laser rangefinder due to accidental handle contact. A transmission component allows rotating a knob on one side to move the L-shaped pressing plates on both sides closer or further apart, improving the efficiency of clamping and fixing the material. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the right side of this utility model.

[0020] Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the middle;

[0021] Figure 4 This is a top view structural diagram of the present invention;

[0022] The components are as follows: 1. Workbench; 2. Convex plate; 3. Vertical plate; 4. Horizontal plate; 5. Electric slider; 6. Laser rangefinder sensor; 7. Cover plate; 8. Handle; 9. Knob; 10. Threaded rod; 11. First fixed plate; 12. First bevel gear; 13. Second bevel gear; 14. Sleeve; 15. Second fixed plate; 16. L-shaped extrusion plate; 17. Rotating rod; 18. Transmission belt; 19. Insert rod; 20. Connecting rod; 21. Clamping plate; 22. Rubber anti-slip pad; 23. Guide rod; 24. Spring. Detailed Implementation

[0023] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation are all within the protection scope of this utility model without creative effort.

[0024] Example

[0025] Please refer to Figures 1-4 As shown, this utility model provides a multi-point thickness gauge for sheet metal, including a worktable 1, a laser rangefinder 6, and L-shaped extrusion plates 16. A notch is provided through the center of the top surface of the worktable 1, facilitating the placement of the sheet metal to be measured. Symmetrical L-shaped extrusion plates 16 are arranged inside the notch. The sheet metal is placed on the top surface of the horizontal portion of the L-shaped extrusion plates 16, which are close together to clamp and fix the sheet metal. Support columns are fixedly installed at the four corners of the bottom surface of the worktable 1. Symmetrical convex plates 2 are fixedly installed on the front and rear sides of the worktable 1. Symmetrical vertical plates 3 are slidably connected to the front and rear sides of the worktable 1. Grooves adapted to the convex plates 2 are provided on the sides of the vertical plates 3 that are close to each other. The convex plates 2 are slidably connected to the vertical plates 3 through the grooves. Symmetrical horizontal plates 4 are fixedly installed between the sides of the vertical plates 3 that are close to each other. All are equipped with electric slide rails, and electric sliders 5 are installed inside the electric slide rails. Laser rangefinders 6 are fixedly connected to the sides of the electric sliders 5 that are close to each other. A control panel is installed on the side of the vertical plate 3. The control panel is electrically connected to the laser rangefinders 6. The laser rangefinders 6 are set above and below the plate. The thickness of the plate can be obtained by subtracting the distance between the upper laser rangefinder 6 and the top surface of the plate and the distance between the lower laser rangefinder 6 and the bottom surface of the plate from the fixed distance between the two laser rangefinders 6. The control panel is electrically connected to the electric slide rails. The electric slide rails control the electric sliders 5 to move forward or backward at the same time, which can drive the laser rangefinders 6 to move forward or backward at the same time. Moving the vertical plate 3 left or right can drive the laser rangefinders 6 to move left or right at the same time, thereby measuring the thickness of the plate at different points.

[0026] like Figures 1-3As shown, a limit assembly is provided in front of the workbench 1. The limit assembly consists of a cover plate 7, a handle 8, a plug rod 19, a connecting rod 20, a clamping plate 21, a guide rod 23, and a spring 24. A through groove is provided on the front of the vertical plate 3, and a cover plate 7 is provided in front of the through groove. A handle 8 is fixedly provided on the front of the cover plate 7, and symmetrical plug rods 19 are fixedly provided on the back of the cover plate 7. Slots for the plug rods 19 are symmetrically provided on the front of the vertical plate 3. The plug rods 19 are slidably connected to the vertical plate 3 through the slots. The plug rods 19 are never disengaged from the slots. The plug rods 19 guide the movement of the cover plate 7 in conjunction with the slots. Symmetrical connecting rods 20 are hinged to the back of the cover plate 7. The other end of the 0 is hinged to a clamping plate 21. Guide rods 23 and springs 24 are fixedly installed on the opposite sides of the clamping plates 21. The top and bottom surfaces of the through groove are connected to guide grooves that accommodate the guide rods 23. The guide rods 23 are slidably connected to the vertical plate 3 through the guide grooves, and the guide rods 23 never disengage from the guide grooves. The guide rods 23, in conjunction with the guide grooves, guide the movement of the clamping plates 21. The end of the spring 24 away from the clamping plates 21 is fixedly connected to the inner wall of the through groove. The clamping plates 21 press against the convex plate 2, preventing the clamping plates 21 from moving relative to the convex plate 2, thereby preventing the vertical plate 3 from moving relative to the worktable 1 and limiting the position of the laser rangefinder 6. Pulling handle 8 moves handle 8 and cover plate 7 away from vertical plate 3. The movement of cover plate 7 causes connecting rod 20 to rotate simultaneously. The rotation of connecting rod 20 causes clamping plates 21 to move simultaneously in a direction away from each other. Spring 24 is compressed. The clamping plates 21 moving away from protrusion plate 2 releases the limiting component from limiting the laser rangefinder 6, allowing the vertical plate 3 to be moved left and right to adjust the position of laser rangefinder 6. When laser rangefinder 6 moves to the designated position, release handle 8. Spring 24 pushes clamping plates 21, causing clamping plates 21 to move simultaneously in a direction closer to each other until clamping plates 21 press against protrusion plate 2 to realign the laser rangefinder 6. To limit the position, rubber anti-slip pads 22 are fixedly connected to the sides of the clamping plates 21 that are close to each other. The rubber anti-slip pads 22 can act as a buffer when the clamping plates 21 are close to the convex plate 2. When the clamping plates 21 press against the convex plate 2, the rubber anti-slip pads 22 are compressed. When the handle 8 is accidentally touched and moves outward slightly, it drives the clamping plates 21 to move away from each other at the same time. At this time, the compressed rubber anti-slip pads 22 are extended but have not yet detached from the convex plate 2. The rubber anti-slip pads 22 are difficult to move relative to the convex plate 2, so as to continue to limit the position of the laser range sensor 6 and prevent the limiting component from releasing the limit of the laser range sensor 6 due to accidental touch of the handle 8.

[0027] like Figures 1-4As shown, a transmission assembly is provided on the top surface of the workbench 1. The transmission assembly consists of a knob 9, a threaded rod 10, a first fixed plate 11, a first bevel gear 12, a second bevel gear 13, a sleeve 14, a second fixed plate 15, a rotating rod 17, and a transmission belt 18. Symmetrical knobs 9 are provided above the workbench 1. Threaded rods 10 are fixedly provided on the sides of the knobs 9 that are close to each other. A first bevel gear 12 is fixedly provided on the outer side of the threaded rod 10. A second bevel gear 13 meshes with the outer side of the first bevel gear 12. A rotating rod 17 is fixedly provided on the side of the second bevel gear 13. Multiple symmetrical third fixed plates are fixedly provided on the top surface of the workbench 1. The rotating rod 17 passes through the third fixed plates and is connected to the third fixed plates via bearings. The plate is rotatably connected, and a transmission belt 18 is sleeved on the outside of the rotating rod 17. A sleeve 14 is threadedly connected to the outside of the threaded rod 10. The sleeves 14 are fixedly connected to the L-shaped extrusion plates 16 on their respective sides. A symmetrical first fixed plate 11 and a second fixed plate 15 are fixedly installed on the top surface of the workbench 1. The sleeve 14 passes through the second fixed plate 15 and is slidably connected to the second fixed plate 15. The second fixed plate 15 can prevent the sleeve 14 from rotating. The threaded rod 10 passes through the first fixed plate 11 and is rotatably connected to the first fixed plate 11 through a bearing. Rotating the knob 9 on one side can drive the L-shaped extrusion plates 16 on the left and right sides to move closer or further away from each other at the same time, improving the efficiency of clamping and fixing the plate.

[0028] Specifically, the sheet material is placed on the top surface of the horizontal portion of the L-shaped extrusion plate 16. Rotating the knob 9 on one side drives the threaded rod 10 on that side to rotate. The rotation of the threaded rod 10 drives the sleeve 14 to move closer to the sheet material, thereby bringing the vertical portion of the L-shaped extrusion plate 16 closer to the sheet material. At the same time, the rotation of the threaded rod 10 drives the first bevel gear 12 to rotate. The rotation of the first bevel gear 12 drives the second bevel gear 13 to rotate. The rotation of the second bevel gear 13 drives the rotating rod 17 to rotate. The rotation of the rotating rod 17 drives the transmission belt 18 to rotate. The rotation of the transmission belt 18 drives the rotating rod 17 on the other side to rotate, thereby bringing the vertical portion of the L-shaped extrusion plate 16 on the other side closer to the sheet material. This achieves the simultaneous close proximity of the vertical portions of the L-shaped extrusion plates 16 on both sides until the vertical portions of the L-shaped extrusion plates 16 are tightly pressed against the sheet material, clamping and fixing the sheet material. Rotating the knob 9 on one side in the opposite direction can move the L-shaped extrusion plates 16 on both sides away from each other, releasing the fixation of the sheet material.

[0029] Specific working principle:

[0030] In use, the sheet material is placed on the top surface of the horizontal portion of the L-shaped extrusion plate 16. Rotating the knob 9 on one side drives the threaded rod 10 on that side to rotate. The rotation of the threaded rod 10 moves the sleeve 14 closer to the sheet material, thus bringing the vertical portion of the L-shaped extrusion plate 16 closer to the sheet material. Simultaneously, the rotation of the threaded rod 10 drives the first bevel gear 12 to rotate, which in turn drives the second bevel gear 13 to rotate. The second bevel gear 13 then drives the rotating rod 17 to rotate, which in turn drives the transmission belt 18 to rotate. The transmission belt 18 then drives the rotating rod 17 on the other side to rotate, thus bringing the vertical portion of the L-shaped extrusion plate 16 on the other side closer to the sheet material, achieving left and right rotation. The vertical portions of the L-shaped extrusion plates 16 on both sides move closer to each other until the vertical portions of the L-shaped extrusion plates 16 are tightly pressed against the plate to clamp and fix the plate. The clamping plate 21 presses against the convex plate 2 to prevent the clamping plate 21 from moving relative to the convex plate 2, thereby preventing the vertical plate 3 from moving relative to the worktable 1 and limiting the position of the laser range sensor 6. The thickness of the plate can be obtained by subtracting the distance between the upper laser range sensor 6 and the top surface of the plate and the distance between the lower laser range sensor 6 and the bottom surface of the plate from the fixed distance between the two laser range sensors 6. Rotating the knob 9 on one side in the opposite direction can move the L-shaped extrusion plates 16 on both sides away from each other to release the fixation of the plate.

[0031] When it is necessary to change the measurement point of the board, pull the handle 8 to move the handle 8 and the cover plate 7 away from the vertical plate 3. The movement of the cover plate 7 causes the connecting rod 20 to rotate at the same time. The rotation of the connecting rod 20 causes the clamping plate 21 to move in a direction away from each other at the same time. The spring 24 is compressed. The clamping plate 21 moves away from the convex plate 2 at the same time, which can release the limiting component from limiting the laser range sensor 6. It is convenient to move the vertical plate 3 left and right to adjust the position of the laser range sensor 6. When the laser range sensor 6 moves to the designated position, release the handle 8. The spring 24 pushes the clamping plate 21 to move in a direction closer to each other at the same time until the clamping plate 21 presses the convex plate 2 to limit the position of the laser range sensor 6 again. The electric slide rail controls the electric slider 5 to move forward or backward at the same time, which can drive the laser range sensor 6 to move forward or backward at the same time, so as to measure the thickness of different points of the board.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-point thickness gauge for sheet metal, comprising a worktable (1), a laser rangefinder (6), and an L-shaped extrusion plate (16), wherein symmetrical laser rangefinders (6) are arranged above and below the worktable (1), and symmetrical L-shaped extrusion plates (16) are arranged inside the worktable (1), characterized in that: The limiting component is located in front of the worktable (1). The limiting component can limit the position of the laser range sensor (6) after the laser range sensor (6) moves left and right. Rubber anti-slip mat (22), the rubber anti-slip mat (22) is symmetrically arranged in front of the workbench (1), the rubber anti-slip mat (22) can play a buffering role when fixing the laser range sensor (6); The transmission assembly is located on the top surface of the worktable (1). The transmission assembly can drive the L-shaped extrusion plates (16) to move closer or further away from each other at the same time.

2. The multi-point thickness gauge for sheet metal according to claim 1, characterized in that: The workbench (1) has symmetrical convex plates (2) fixedly installed on its front and rear sides. The workbench (1) has symmetrical vertical plates (3) slidably connected to its front and rear sides. The vertical plates (3) have grooves adapted to the convex plates (2) on their respective sides. The convex plates (2) are slidably connected to the vertical plates (3) through the grooves. The vertical plates (3) have symmetrical horizontal plates (4) fixedly installed between their respective sides. The horizontal plates (4) have electric slide rails on their respective sides. Electric sliders (5) are installed inside the electric slide rails. The electric sliders (5) are fixedly connected to the laser rangefinder (6). The vertical plates (3) have control panels installed on their sides.

3. The multi-point thickness gauge for sheet metal according to claim 2, characterized in that: The limiting assembly includes a cover plate (7), a handle (8), a plug rod (19), a connecting rod (20), a clamping plate (21), a guide rod (23), and a spring (24). The cover plate (7) is provided in front of the vertical plate (3). The handle (8) is fixedly provided on the front of the cover plate (7). The symmetrical plug rods (19) are fixedly provided on the back of the cover plate (7). The symmetrical connecting rods (20) are hinged to the back of the cover plate (7). The clamping plate (21) is hinged to the other end of the connecting rod (20). The guide rod (23) and the spring (24) are fixedly provided on the opposite sides of the clamping plates (21).

4. A multi-point thickness gauge for sheet metal according to claim 3, characterized in that: The vertical plate (3) has symmetrical slots for fitting the insert rod (19) on its front side. The insert rod (19) is slidably connected to the vertical plate (3) through the slots. The sides of the clamping plates (21) that are close to each other are fixedly connected to the rubber anti-slip pad (22). The vertical plate (3) has a through groove on its front side. The top and bottom surfaces of the through groove are connected to guide grooves for fitting the guide rod (23). The guide rod (23) is slidably connected to the vertical plate (3) through the guide groove. The end of the spring (24) away from the clamping plate (21) is fixedly connected to the inner wall of the through groove.

5. A multi-point thickness gauge for sheet metal according to claim 1, characterized in that: The transmission assembly includes a knob (9), a threaded rod (10), a first fixed plate (11), a first bevel gear (12), a second bevel gear (13), a sleeve (14), a second fixed plate (15), a rotating rod (17), and a transmission belt (18). Symmetrical knobs (9) are provided above the workbench (1). Threaded rods (10) are fixedly provided on the side of each knob (9) that is close to each other. A first bevel gear (12) is fixedly provided on the outside of the threaded rod (10). A second bevel gear (13) meshes with the outside of the first bevel gear (12). A rotating rod (17) is fixedly provided on the side of the second bevel gear (13). A transmission belt (18) is sleeved on the outside of the rotating rod (17). A sleeve (14) is threadedly connected to the outside of the threaded rod (10). Symmetrical first fixed plates (11) and second fixed plates (15) are fixedly provided on the top surface of the workbench (1).

6. A multi-point thickness gauge for sheet metal according to claim 5, characterized in that: The threaded rod (10) passes through the first fixed plate (11) and is rotatably connected to the first fixed plate (11) through a bearing. The sleeve (14) passes through the second fixed plate (15) and is slidably connected to the second fixed plate (15). The sleeves (14) are respectively fixedly connected to the L-shaped extrusion plate (16) on their respective sides. The top surface of the workbench (1) is fixedly provided with a plurality of symmetrical third fixed plates. The rotating rod (17) passes through the third fixed plate and is rotatably connected to the third fixed plate through a bearing.

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