Density measuring device based on 3D laser scanning

Abstract

The utility model provides a density measuring device based on 3D laser scanning, and relates to the technical field of density measurement. The connecting shell is arranged on the supporting square frame in a sleeving manner; the volume measuring part is arranged on the connecting shell and is used for measuring the volume of an object to be detected; the mass measuring part is arranged on the supporting square frame and is used for measuring the mass of an object to be detected; and the display part is arranged on the connecting shell. According to the utility model, the volume measuring part is arranged to measure the volume of the to-be-detected object, and the to-be-detected object is scanned by the laser scanner, so that the accurate volume of the to-be-detected object is obtained; the mass measuring part is arranged to measure the mass of the object to be detected; therefore, the density is obtained and displayed on the display part, so that the detection process is convenient and rapid, and meanwhile, water is prevented from being contacted during measurement.

Description

Technical Field

[0001] The utility model relates to the technical field of density measurement, and particularly relates to a density measurement device based on 3D laser scanning. Background Art

[0002] Density measurement devices are instruments used to measure the density of substances, and they have a wide range of applications in fields such as industry, scientific research, and quality control. Among them, solid density testers are used to test the density of solids; solid density testers usually rely on Archimedes' principle to calculate the density by measuring the weight difference of a solid in air and in a liquid. These devices are widely used in fields such as materials science, quality control, and product research and development.

[0003] When measuring the density of substances, existing density measurement devices often require the use of a relatively large number of precision components and are relatively complex; at the same time, when measuring solids, the object needs to be in contact with water, so it is not suitable for measuring objects that are inconvenient to contact water. Summary of the Utility Model

[0004] To solve the above technical problems, the technical solution of the utility model is as follows:

[0005] An embodiment of the utility model provides a density measurement device based on 3D laser scanning, including: a support frame; further including:

[0006] A connecting shell sleeved on the support frame;

[0007] A volume measurement unit arranged on the connecting shell to measure the volume of the object to be detected;

[0008] A mass measurement unit arranged on the support frame to measure the mass of the object to be detected;

[0009] A display unit arranged on the connecting shell.

[0010] Further, the volume measurement unit includes:

[0011] A connecting side plate connected to one side of the connecting shell;

[0012] Two groups of laser scanners are arranged on the connecting side plate to scan the object to be measured.

[0013] Further, the mass measurement unit includes:

[0014] An electronic weighing plate connected to the support frame by bolts;

[0015] A connecting member arranged on the electronic weighing plate;

[0016] The V-shaped frame is clamped by the connecting piece to stably place the object to be detected.

[0017] Furthermore, the display part includes:

[0018] A protective case is arranged on the connecting case, and a calculation module is arranged inside;

[0019] A display screen is arranged on the protective case to display the density of the object to be detected.

[0020] Furthermore, the connecting piece includes:

[0021] The first support plate is connected to the electronic scale plate through the bolt;

[0022] There are two sets of pushing pieces, and the two sets of pushing pieces are arranged at both ends of the first support plate to clamp the V-shaped frame;

[0023] A stabilizing piece is arranged on the pushing piece to ensure the stability of the V-shaped frame.

[0024] Furthermore, the pushing piece includes:

[0025] The first fixing plate is arranged on the first support plate;

[0026] The air cylinder is arranged on the first support plate;

[0027] The sliding plate slides on the first support plate, one end is connected to the output end of the air cylinder, and the stabilizing piece is arranged on the sliding plate;

[0028] A dovetail groove is opened on the first support plate;

[0029] The dovetail slider slides in the dovetail groove, and the top end is connected to the first fixing plate.

[0030] Furthermore, the stabilizing piece includes:

[0031] There are two sets of fixing blocks, and the two sets of fixing blocks are arranged on the sliding plate;

[0032] The bidirectional screw rod is rotatably connected to the fixing blocks at both ends;

[0033] There are two sets of threaded sleeves, and the two sets of threaded sleeves are symmetrically sleeved on the bidirectional screw rod;

[0034] The motor is arranged on one set of fixing blocks, and the output end passes through the fixing block and is connected to one end of the bidirectional screw rod;

[0035] An activity groove is opened on the sliding plate;

[0036] A sliding block that slides within the movable slot and has one end connected to the threaded sleeve;

[0037] A clamping block with one end connected to the other end of the sliding block to abut against the V-shaped frame.

[0038] The above solution of the present utility model has at least the following beneficial effects:

[0039] The present utility model measures the volume of the object to be detected through the volume measurement part, scans the object to be detected through the laser scanner, so as to obtain the accurate volume of the object to be detected; measures the mass of the object to be detected through the mass measurement part; obtains the volume and mass, and then obtains the density and displays it on the display part, making the detection process convenient and fast, and avoiding contact with water during measurement. Description of the Drawings

[0040] Figure 1 is the first three-dimensional view of the density measurement device based on 3D laser scanning of the present utility model;

[0041] Figure 2 is the second three-dimensional view of the density measurement device based on 3D laser scanning of the present utility model;

[0042] Figure 3 is the front view of the density measurement device based on 3D laser scanning of the present utility model;

[0043] Figure 4 is the first partial three-dimensional view of the density measurement device based on 3D laser scanning of the present utility model;

[0044] Figure 5 is the second partial three-dimensional view of the density measurement device based on 3D laser scanning of the present utility model;

[0045] Figure 6 is the third partial three-dimensional view of the density measurement device based on 3D laser scanning of the present utility model;

[0046] Figure 7 is the enlarged view at A of the density measurement device based on 3D laser scanning of the present utility model;

[0047] Figure 8 is the enlarged view at B of the density measurement device based on 3D laser scanning of the present utility model.

[0048] Explanation of the Reference Numerals:

[0049] 1. Connecting shell; 201. Connecting side plate; 202. Laser scanner; 301. Protective shell; 302. Display screen; 4. Support frame; 401. Support base; 5. V-shaped frame; 6. Connector; 601. First support plate; 602. First fixing plate; 603. Cylinder; 605. Sliding plate; 606. Fixed block; 607. Bi-directional screw; 608. Threaded sleeve; 609. Motor; 610. Dovetail groove; 611. Dovetail slider; 612. Movable groove; 613. Clamping block; 614. Sliding block; 7. Electronic scale plate; 701. Bolt. Detailed implementation

[0050] The exemplary embodiments of the present utility model will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present utility model can be more thoroughly understood and the scope of the present utility model can be completely conveyed to those skilled in the art.

[0051] As Figures 1 to 5 shown, the embodiment of the present utility model provides a density measuring device based on 3D laser scanning, including: a support frame 4; further including: a connecting shell 1 sleeved on the support frame 4; a volume measuring unit arranged on the connecting shell 1 to measure the volume of the object to be detected; a mass measuring unit arranged on the support frame 4 to measure the mass of the object to be detected; and a display unit arranged on the connecting shell 1.

[0052] In the embodiment of the present utility model, by providing a volume measuring unit, the volume of the object to be detected is measured, and the object to be detected is scanned by the laser scanner 202, so as to obtain the accurate volume of the object to be detected; by providing a mass measuring unit, the mass of the object to be detected is measured; the volume and mass are obtained, and then the density is obtained and displayed on the display unit, making the detection process convenient and fast.

[0053] Among them, a support base 401 is provided under the support frame 4 to ensure the stability of the device.

[0054] As Figures 1 to 5 shown, the volume measuring unit includes: a connecting side plate 201 connected to one side of the connecting shell 1; two groups of laser scanners 202 arranged on the connecting side plate 201 to scan the object to be measured.

[0055] In the embodiment of the present utility model, two groups of laser scanners 202 are provided to scan the object to be measured from different directions. Specifically, a visible or invisible laser beam is emitted by the transmitter of the scanning instrument, and then the reflected light is captured by the sensor to measure the coordinate positions on the surface of the object, thereby establishing a point cloud model of the object surface to achieve precise 3D scanning of the object, and the volume is automatically obtained by software algorithms, thus completing the volume measurement of the object to be measured.

[0056] As Figures 1 to 5 shown, the mass measurement part includes: an electronic weighing plate 7, connected to the support frame 4 by bolts 701; a connecting piece 6, arranged on the electronic weighing plate 7; and a V-shaped frame 5, clamped by the connecting piece 6 to stably place the object to be detected.

[0057] In the embodiment of the present utility model, an electronic weighing plate 7 is provided to weigh the object on the electronic weighing plate 7; a connecting piece 6 is provided to fix the V-shaped frame 5, thereby ensuring the stability of the Y-shaped frame and avoiding shaking when the object is placed on the V-shaped frame 5.

[0058] Among them, the angle of the V-shaped frame 5 is set to 90 degrees, which is convenient for placing a rectangular object to be measured. Placing one side of the rectangular object to be measured on the V-shaped frame 5 not only ensures the stability of the object to be measured, but also makes the other side of the object to be measured face the laser scanner 202 directly, facilitating the laser scanner 202 to scan the length, width and height of the rectangular object, so as to obtain the volume measurement result more quickly. At the same time, before measurement, the connecting piece 6 and the V-shaped frame 5 placed on the electronic weighing plate 7 are zeroed to ensure the accuracy of the mass of the object to be measured.

[0059] As Figures 1 to 5 shown, the display part includes: a protective case 301, arranged on the connecting case 1 and internally provided with a calculation module; and a display screen 302, arranged on the protective case 301 to display the density of the object to be detected.

[0060] In the embodiment of the present utility model, the calculation module is arranged in the protective case 301 to ensure the stability of the calculation module; at the same time, after the result is obtained, it will be directly displayed on the display screen 302, which is convenient for the staff to observe.

[0061] In a preferred embodiment of the present utility model, the connecting piece 6 can be a fixing connecting piece 6 such as a screw or a sheet metal part to fix the V-shaped frame 5 on the electronic weighing plate 7.

[0062] By connecting the V-shaped frame 5 and the electronic weighing plate 7 together through fixing connecting pieces 6 such as screws and sheet metal parts, the placement of the object to be measured is made more stable.

[0063] In another preferred embodiment of the present invention, the connecting member 6 is a detachable connecting member 6. Figures 6 to 8 As shown, the connecting member 6 includes: a first support plate 601, connected to the electronic scale plate 7 via the bolts 701; a pushing member, which is provided with two groups, and the two groups of pushing members are provided at both ends of the first support plate 601 to clamp the V-shaped frame 5; a stabilizing member, which is provided on the pushing member to ensure the stability of the V-shaped frame 5.

[0064] In the embodiment of the utility model, by setting the pushing member, the connecting member 6 can connect V-shaped frames 5 of different models to adapt to objects of different sizes; at the same time, a stabilizing member is provided to change the height position of the V-shaped frame 5 to adapt to objects to be tested in a larger range.

[0065] There are two groups of pushers, which push simultaneously to fix the V-shaped frame 5 in the middle of the device.

[0066] like Figures 5 to 8 As shown, the pushing member includes: a first fixed plate 602, which is arranged on the first support plate 601; a cylinder 603, which is arranged on the first support plate 601; a sliding plate 605, which slides on the first support plate 601, one end of which is connected to the output end of the cylinder 603, and the stabilizing member is arranged on the sliding plate 605; a dovetail groove 610, which is opened on the first support plate 601; a dovetail slider 611, which slides in the dovetail groove 610, and the top end is connected to the first fixed plate 602.

[0067] In the embodiment of the utility model, the V-shaped frame 5 is placed on the first support plate 601, and the cylinder 603 is started to drive the sliding plate 605 and the dovetail slider 611 to move inward along the dovetail groove 610, thereby driving the two sets of sliding plates 605 to approach each other, thereby clamping the V-shaped frame 5, thereby fixing the position of the V-shaped frame 5.

[0068] like Figures 5 to 8 As shown, the stabilizing member includes: a fixed block 606, which is provided with two groups, and the two groups of fixed blocks 606 are provided on the sliding plate 605; a bidirectional screw 607, both ends of which are rotatably connected to the fixed block 606; a threaded sleeve 608, which is provided with two groups, and the two groups of threaded sleeves 608 are symmetrically sleeved on the bidirectional screw 607; a motor 609, which is provided on one group of the fixed blocks 606, and the output end is passed through the fixed block 606 and connected with one end of the bidirectional screw 607; a movable groove 612, which is opened on the sliding plate 605; a sliding block 614, which slides in the movable groove 612, and one end is connected to the threaded sleeve 608; a clamping block 613, one end of which is connected to the other end of the sliding block 614 to abut against the V-shaped frame 5.

[0069] In the embodiment of the present utility model, after the V-shaped frame 5 is clamped, in order to prevent the V-shaped frame 5 from not being in a horizontal state with the first support plate 601, the motor 609 is started to drive the bidirectional screw 607 to rotate, thereby driving the two threaded sleeves 608 to move towards each other along the bidirectional screw 607, thereby driving the sliding block 614 to move in the movable groove 612, and finally driving the two clamping blocks 613 to approach each other, so as to fit with the two outer surfaces of the V-shaped frame 5. Since the surfaces of the clamping blocks 613 that fit with the two outer surfaces of the V-shaped frame 5 are at an angle of 45 degrees to the horizontal plane, the V-shaped frame 5 is ensured to be in a horizontal state with the first support plate 601, which is convenient for the laser scanner 202 to scan.

[0070] Working principle: Place the object to be detected on the V-shaped frame 5 to obtain the mass of the object to be detected; at the same time, the emitter of the scanning instrument emits visible or invisible laser beams, and then the reflected light is captured by the sensor to measure the coordinate positions on the surface of the object, so as to establish a point cloud model of the object surface and achieve precise 3D scanning of the object. The volume is automatically obtained by software algorithms; thus, the volume measurement of the object to be measured is completed; finally, through the calculation module arranged in the protective shell 301, the density of the object to be detected is calculated and directly displayed on the display screen 302, which is convenient for the staff to observe.

[0071] The above is the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle described in the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A density measurement device based on 3D laser scanning, comprising: The supporting frame (4) is characterized in that it also comprises: A connecting shell (1) sleeved on the supporting frame (4); A volume measuring unit, arranged on the connecting shell (1) to measure the volume of the object to be detected; A mass measuring unit, arranged on the supporting frame (4) to measure the mass of the object to be detected; A display unit is arranged on the connecting shell (1).

2. The density measuring device based on 3D laser scanning according to claim 1, characterized in that: The volume measuring unit comprises: A connecting side plate (201) connected to one side of the connecting shell (1); The laser scanner (202) is provided in two groups, and the two groups of laser scanners (202) are arranged on the connecting side plate (201) to scan the object to be measured.

3. The density measuring device based on 3D laser scanning according to claim 1 or 2, characterized in that: The quality measurement unit comprises: The electronic scale plate (7) is connected to the supporting frame (4) via bolts (701); A connecting member (6) is arranged on the electronic scale plate (7); The V-shaped frame (5) is clamped by the connecting member (6) to stably place the object to be detected.

4. The density measuring device based on 3D laser scanning according to claim 3, characterized in that: The display unit includes: A protective shell (301) is arranged on the connecting shell (1) and has a computing module arranged therein; A display screen (302) is arranged on the protective shell (301) to display the density of the object to be detected.

5. The density measuring device based on 3D laser scanning according to claim 4, characterized in that: The connecting member (6) comprises: A first support plate (601) connected to the electronic scale plate (7) via the bolts (701); Pushing members, two groups of which are arranged at two ends of the first supporting plate (601) to clamp the V-shaped frame (5); A stabilizing member is arranged on the pushing member to ensure the stability of the V-shaped frame (5).

6. The density measuring device based on 3D laser scanning according to claim 5, characterized in that: The pusher comprises: A first fixing plate (602) is arranged on the first supporting plate (601); A cylinder (603) disposed on the first supporting plate (601); A sliding plate (605) slides on the first supporting plate (601), one end of which is connected to the output end of the cylinder (603), and the stabilizing member is arranged on the sliding plate (605); A dovetail groove (610) is formed on the first supporting plate (601); The dovetail slider (611) slides in the dovetail groove (610), and the top end is connected to the first fixing plate (602).

7. The density measuring device based on 3D laser scanning according to claim 6, characterized in that: The stabilizer comprises: Two groups of fixed blocks (606) are provided, and the two groups of fixed blocks (606) are arranged on the sliding plate (605); A bidirectional screw (607), both ends of which are rotatably connected to the fixed block (606); The threaded sleeves (608) are provided in two groups, and the two groups of the threaded sleeves (608) are symmetrically sleeved on the bidirectional screw (607); A motor (609) is disposed on a set of the fixing blocks (606), and an output end thereof is passed through the fixing blocks (606) and connected to one end of the bidirectional screw (607); A movable groove (612) is formed on the sliding plate (605); A sliding block (614) slides in the movable groove (612) and one end of which is connected to the threaded sleeve (608); One end of the clamping block (613) is connected to the other end of the sliding block (614) so ​​as to abut against the V-shaped frame (5).

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