Three-dimensional scanning distance measuring device and use method thereof

Abstract

The invention discloses a three-dimensional scanning distance measuring device and a use method thereof, and belongs to the technical field of three-dimensional scanning. Comprising a three-dimensional scanning range finder body, a mounting seat, a turnover mechanism, a positioning mechanism and a carrying mechanism, the three-dimensional scanning range finder body is fixed to the inner side of the turnover mechanism, the turnover mechanism is rotationally connected to the mounting base, and the positioning mechanism is rotationally connected with the turnover mechanism. The positioning mechanism and the turnover mechanism are rotationally connected to the mounting base, the turnover mechanism is an annular mechanism, and the three-dimensional scanning range finder body is fixed to the inner side of the turnover mechanism; the loading mechanism is fixed on the mounting seat, the three-dimensional scanning range finder body rotates around a workpiece on the loading mechanism when the three-dimensional scanning range finder body rotates around the rotation of the turnover mechanism, and at the moment, the three-dimensional scanning range finder body can annularly scan the front, back, left and right of the workpiece, so that damage to the surface of the workpiece is avoided, rotation scanning is not influenced, and free rotation can be realized; scanning operation can be completed at a time, and the scanning efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of three-dimensional scanning technology, and more specifically, to a three-dimensional scanning ranging device and a method for using the same. Background Art

[0002] A 3D scanner is a scientific instrument used to detect and analyze the shape and appearance data of objects or environments in the real world. By creating a point cloud of the geometric surface of the object, the collected data is used for 3D reconstruction calculations (the denser the point cloud, the more accurate the model can be created). These models have a wide range of uses, including industrial design, defect detection, reverse engineering, robot guidance, topographic measurement, medical information, bioinformatics, criminal identification, digital cultural relics collection, film production, game creation materials, etc. Due to the limited scanning range of 3D scanners, existing 3D scanning devices usually change the relative position of the object with a handheld scanner or place the object on an electric turntable and scan it with a fixed-position scanner. After multiple scans, a complete model of the object is pieced together. However, the above two scanning methods have the following problems: the handheld scanner scanning method increases the workload of the staff. At the same time, the movement of the handheld scanner during the scanning work will cause the local scanning points to be uneven due to the irregular and uneven hand-held movement of the staff, thereby making the point data inaccurate; the fixed-position scanner rotates the object for scanning through the electric turntable. Although the scanning is uniform, when scanning the bottom of the workpiece, it is necessary to manually flip the bottom, which is not convenient enough, and the position of the scanner cannot be adjusted.

[0003] The document with the prior art publication number CN111853456B provides a three-dimensional scanning device. Through the cooperation of a first rotating component and a second rotating component, the scanning camera can automatically rotate back and forth to scan the workpiece, and the points on the surface of the workpiece can be scanned from various angles. The scanning result is more accurate, and the scanning camera can be rotated to the lower surface of the workpiece, so as to facilitate the scanning of the lower surface of the workpiece and avoid the tediousness of manually flipping the workpiece when scanning the bottom of the workpiece; the sliding rod of the claw mechanism can be slidably adjusted and fixed relative to the sleeve, and can be adjusted according to workpieces of different lengths; at the same time, the claw part is elastically pressed and fixed to the workpiece by a compression spring, and the operation and use are simple and convenient.

[0004] Although the above-mentioned prior art solutions can achieve the relevant beneficial effects through the structure of the prior art, the following defects still exist: First, the claw portion of the device clamps the workpiece and fixes it on the outer ring mechanism, so it is cumbersome to disassemble and assemble the workpiece. At the same time, in the process of clamping the workpiece by the claw portion, it is easy to damage the external shape of some workpieces such as rubber products, thereby affecting the overall shape after the overall scan; Second, since the device is restricted by the sleeve of the outer ring mechanism, there is a dead angle of rotation of the annular rotating plate during the rotation process, and the annular rotating plate cannot rotate 360 ​​degrees; Third, after the device clamps the workpiece by the claw portion, the clamping part cannot be scanned due to the obstruction of the claw portion during the scanning process, so that the workpiece needs to be removed from the claw portion and the angle adjusted before being reinstalled for scanning. Therefore, the scanning process is cumbersome and the scanning operation cannot be completed in one go.

[0005] Regarding the above-mentioned related technologies, the inventor believes that in the process of the claw part clamping the workpiece, it is easy to cause damage to the external shape of some workpieces such as rubber products, thereby affecting the overall shape after the overall scan. There is a dead angle in the rotation process of the annular rotating plate, and the annular rotating plate cannot rotate 360 ​​degrees. After the claw part clamps the workpiece, the clamping part cannot be scanned due to the obstruction of the claw part during the scanning process, so that the workpiece needs to be removed from the claw part, the angle needs to be adjusted, and then installed for scanning. Therefore, the scanning process is more cumbersome and the scanning operation cannot be completed in one go.

[0006] In view of this, we propose a three-dimensional scanning ranging device and a method of using the same. Summary of the invention

[0007] 1. Technical issues to be solved

[0008] The purpose of this application is to provide a three-dimensional scanning and ranging device and its use method, which solves the technical problems in the above-mentioned background technology, avoids damage to the surface of the workpiece, and the rotation scanning is not affected. It can rotate freely and can complete the scanning operation in one time, thereby improving the scanning efficiency.

[0009] 2. Technical solution

[0010] The technical solution of the present application provides a three-dimensional scanning distance measuring device, including a three-dimensional scanning distance measuring instrument body, including: a mounting seat, a flipping mechanism, a positioning mechanism and a carrying mechanism; the three-dimensional scanning distance measuring instrument body is fixed to the inner side of the flipping mechanism, the flipping mechanism is rotatably connected to the mounting seat, the positioning mechanism is rotatably connected to the flipping mechanism, the positioning mechanism is rotatably connected to the mounting seat, the carrying mechanism is fixed to the mounting seat, the flipping mechanism rotates around the carrying mechanism, and the height of the carrying mechanism is adjustable.

[0011] By adopting the above technical solution, the positioning mechanism and the flipping mechanism are both rotatably connected to the mounting seat, and the flipping mechanism is a ring mechanism, the three-dimensional scanning rangefinder body is fixed on the inner side of the flipping mechanism, and the carrying mechanism is fixed on the mounting seat. The three-dimensional scanning rangefinder body rotates around the workpiece on the carrying mechanism when the flipping mechanism rotates. At this time, the three-dimensional scanning rangefinder body can perform a ring scan on the front, back, left, and right sides of the workpiece. At the same time, when the flipping mechanism rotates with the fixed position of the positioning mechanism and the mounting seat as the axis, the three-dimensional scanning rangefinder body can perform a ring scan on the up, down, front, and back directions of the workpiece. When the flipping mechanism rotates, there is no interference with the carrying mechanism, so the flipping mechanism can rotate freely without a scanning dead angle. The workpiece is placed on the carrying mechanism without being fixed, which is convenient for taking and will not cause damage to the surface of the workpiece. The three-dimensional scanning rangefinder body can perform a ring scan on the up, down, front, back, left, and right sides of the workpiece, so that the scanning work can be completed at one time. The distance between the carrier and the three-dimensional scanning rangefinder body is adjusted by the height of the carrying mechanism to meet the placement requirements of workpieces of different sizes.

[0012] As an optional solution of the technical solution of the present application document, the mounting base includes a base and two groups of brackets; the two groups of brackets are symmetrically fixed on the base, and grooves are provided on the inner sides of the brackets. The positioning mechanism is rotatably connected in the groove on one side, and one side of the flipping mechanism is rotatably connected in the groove on the other side.

[0013] By adopting the above technical solution, brackets are fixed on both sides of the upper surface of the base, and circular grooves are opened on the inner sides of the upper ends of the brackets. The positioning mechanism and the flipping mechanism are respectively rotatably connected in the two grooves to support the whole through the brackets. At the same time, the loading mechanism is fixed on the bracket on one side and fixed on the axis of the groove.

[0014] As an optional solution of the technical solution of the present application document, the flipping mechanism includes an outer gear ring, a first rotating mechanism and a second rotating mechanism; the outer gear ring is transmission connected to the first rotating mechanism, the second rotating mechanism is transmission connected to the first rotating mechanism, the second rotating mechanism is rotationally connected to the bracket, and the three-dimensional scanning rangefinder body is fixed on the inner side of the outer gear ring.

[0015] As an optional solution of the technical solution of the present application document, the first rotating mechanism includes a gear and a first stepper motor; the first stepper motor is transmission connected to the gear, and the gear is meshed with the outer gear ring, and the second rotating mechanism includes a first disc and a second stepper motor, the first disc is rotationally connected to the groove on one side, and the second stepper motor is transmission connected to the first disc.

[0016] By adopting the above technical solution, the output shaft of the first stepper motor is coaxially fixed with the gear, and the gear is meshed with the outer gear ring. Then, the first stepper motor drives the gear to rotate, so that the outer gear ring can rotate around the axis, and then rotate around the workpiece in the front, back, left and right directions. The first disc is rotatably connected to the groove on the right side through a bearing, and the output shaft of the second stepper motor is coaxially fixed with the first disc. The second stepper motor is fixed on the bracket on the right side, the outer gear ring is rotatably connected to the first disc, and when the first disc rotates with the output shaft of the second stepper motor as the axis, the outer gear ring can perform a circular scanning around the up, down, front and back directions of the workpiece.

[0017] As an optional solution of the technical solution of the present application document, the positioning mechanism includes a gear seat and a second disc; the second disc and the first disc are rotatably connected to the two grooves respectively, and the second disc and the first disc are fixedly installed with gear seats on the opposite sides away from the center of the circle, the gear seat is rotatably connected to the outer gear ring, the gear seat is provided with a gear ring groove adapted to the outer gear ring, a fixing plate is fixedly connected between the three-dimensional scanning rangefinder body and the inner wall of the outer gear ring, the gear seat is provided with an avoidance opening adapted to the fixing plate, a through hole is provided at the axis center of the second disc, and the carrier mechanism passes through the through hole and is fixed to the bracket.

[0018] By adopting the above technical solution, the second disc is rotatably connected to the groove on the left side through a bearing, and a happy through hole is opened at the axis center of the second disc, the carrying mechanism passes through the through hole and is fixed to the bracket, and the gear seats are fixedly installed at the edge of the side opposite to the first disc, and both gear seats are provided with a gear ring groove and an avoidance opening. The outer gear ring rotates in the gear ring groove and is prevented from being separated. At the same time, the three-dimensional scanning rangefinder body is connected through a fixed plate. When the outer gear ring drives the three-dimensional scanning rangefinder body to rotate, the fixed plate passes through the avoidance opening to ensure the normal rotation of the outer gear ring.

[0019] As an optional solution to the technical solution of the present application document, the loading mechanism includes a Z-shaped rod and a loading platform; one end of the Z-shaped rod passes through the through hole and is fixed to the bracket, and the other end is fixed to the loading platform, and the height of the Z-shaped rod is adjustable.

[0020] As an optional solution to the technical solution of the present application document, the Z-shaped rod includes a fixed rod, an outer sleeve, an inner rod, a locking screw and a connecting rod; the fixed rod is horizontally arranged and passed through a through hole to be fixed to the bracket, the outer sleeve is vertically fixed to the fixed rod, the inner rod is slidably inserted into the outer sleeve, the locking screw is threadedly connected to the outer sleeve and is against the inner rod, the connecting rod is parallel to the fixed rod and one end is fixed to the inner rod, and the other end is fixed to the carrier.

[0021] By adopting the above technical solution, the fixing rod is horizontally arranged and passes through the through hole to be fixed to the bracket, the outer sleeve is vertically fixed to the fixing rod, the inner rod is slidably inserted into the outer sleeve, and the locking screw is threadedly connected to the outer sleeve, and then the height adjustment of the platform is realized through the telescopic adjustment of the inner rod and the outer sleeve, and through the Z-shaped structure of the Z-shaped rod, when the three-dimensional scanning rangefinder body rotates in a circle around the workpiece in the horizontal direction, the outer sleeve and the inner rod are prevented from blocking the front of the three-dimensional scanning rangefinder body.

[0022] As an optional solution of the technical solution of this application document, the carrier is made of transparent tempered glass.

[0023] By adopting the above technical solution, the carrier is preferably made of transparent tempered glass. When the three-dimensional scanning rangefinder body scans the bottom of the workpiece, since the working principle of the three-dimensional scanner is to obtain the diffuse reflection profile of the laser projected onto the surface of the scanned object, and glass is a transparent object and cannot complete reflection, the bottom of the workpiece can be scanned through the glass during the scanning process.

[0024] The technical solution of the present application also provides a three-dimensional scanning distance measurement device and a method for using the same, which at least includes the following method steps:

[0025] S1. By adjusting the height of the Z-shaped rod, the distance between the stage and the three-dimensional scanning rangefinder body is adjusted;

[0026] S2, placing the workpiece to be scanned on the stage, starting the second stepper motor to drive the positioning mechanism, the outer gear ring and the 3D scanning rangefinder body to rotate 360 ​​degrees with the through hole as the axis, and then the 3D scanning rangefinder body performs a circular scan on the workpiece on the stage in the up, down, front and back directions;

[0027] S3. Then the first stepper motor drives the gear to rotate, and the gear drives the outer gear ring to rotate. The outer gear ring rotates horizontally with the axis of the carrier. At this time, the three-dimensional scanning rangefinder body inside the outer gear ring can perform circular scanning on the front, back, left and right directions of the workpiece.

[0028] 3. Beneficial effects

[0029] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0030] 1. The present application is connected to the mounting base by rotation through the positioning mechanism and the flipping mechanism, and the flipping mechanism is a ring-shaped mechanism, the 3D scanning rangefinder body is fixed inside the flipping mechanism, and the carrying mechanism is fixed on the mounting base. The 3D scanning rangefinder body rotates around the workpiece on the carrying mechanism when the flipping mechanism rotates. At this time, the 3D scanning rangefinder body can perform a ring scan of the workpiece in front, behind, left and right directions;

[0031] 2. When the flip mechanism of the present application rotates with the fixed position of the positioning mechanism and the mounting seat as the axis, the three-dimensional scanning rangefinder body can perform circular scanning on the workpiece in the up and down, front and back directions. When the flip mechanism rotates, it does not interfere with the object-carrying mechanism, so the flip mechanism can rotate freely without any scanning blind spots.

[0032] 3. In this application, the workpiece is placed on the loading mechanism, which does not need to be fixed, is easy to pick up, and will not cause damage to the surface of the workpiece. The 3D scanning rangefinder body can perform circular scanning of the workpiece up and down, front and back, left and right, so that the scanning work can be completed at one time. The distance between the loading platform and the 3D scanning rangefinder body can be adjusted by the height of the loading mechanism to meet the placement requirements of workpieces of different sizes;

[0033] 4. The present application achieves the goal of avoiding damage to the workpiece surface, the rotational scanning is not affected, it can rotate freely, and the scanning operation can be completed in one go, thereby improving the scanning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of a three-dimensional scanning distance measuring device disclosed in a preferred embodiment of the present application;

[0035] Figure 2 This is a schematic diagram of the overall exploded structure of a three-dimensional scanning distance measuring device disclosed in a preferred embodiment of the present application;

[0036] Figure 3 A schematic diagram of the positioning mechanism structure of a three-dimensional scanning distance measuring device disclosed in a preferred embodiment of the present application;

[0037] Figure 4 A schematic diagram of the structure of a loading mechanism of a three-dimensional scanning distance measuring device disclosed in a preferred embodiment of the present application;

[0038] Figure 5 A schematic diagram of the structure of a first rotating mechanism and an outer gear ring of a three-dimensional scanning distance measuring device disclosed in a preferred embodiment of the present application;

[0039] Figure 6 A schematic diagram of a mounting base structure of a three-dimensional scanning distance measuring device disclosed in a preferred embodiment of the present application;

[0040] Figure 7 A schematic diagram of the structure of a second rotating mechanism of a three-dimensional scanning distance measuring device disclosed in a preferred embodiment of the present application;

[0041] Explanation of the numbers in the figure: 1. mounting base; 101. base; 102. bracket; 1021. groove; 2. flip mechanism; 201. outer gear ring; 202. first rotating mechanism; 2021. gear; 2022. first stepping motor; 203. second rotating mechanism; 2031. first disk; 2032. second stepping motor; 3. positioning mechanism; 301. gear seat; 3011. gear ring groove; 3012. avoidance; 302. second disk; 3021. through hole; 4. loading mechanism; 401. Z-shaped rod; 4011. fixing rod; 4012. outer sleeve; 4013. inner rod; 4014. locking screw; 4015. connecting rod; 402. stage; 5. 3D scanning rangefinder body; 501. fixing plate. DETAILED DESCRIPTION

[0042] The present application is further described in detail below in conjunction with the accompanying drawings.

[0043] A three-dimensional scanning distance measuring device comprises a three-dimensional scanning distance measuring instrument body 5, comprising: a mounting seat 1, a flipping mechanism 2, a positioning mechanism 3 and a carrying mechanism 4; the three-dimensional scanning distance measuring instrument body 5 is fixed on the inner side of the flipping mechanism 2, the flipping mechanism 2 is rotatably connected to the mounting seat 1, the positioning mechanism 3 is rotatably connected to the flipping mechanism 2, the positioning mechanism 3 is rotatably connected to the mounting seat 1, the carrying mechanism 4 is fixed on the mounting seat 1, the flipping mechanism 2 rotates around the carrying mechanism 4, and the height of the carrying mechanism 4 is adjustable.

[0044] Reference Figure 1 and Figure 2 , the positioning mechanism 3 and the flipping mechanism 2 are both rotatably connected to the mounting seat 1, and the flipping mechanism 2 is a ring mechanism, the three-dimensional scanning rangefinder body 5 is fixed on the inner side of the flipping mechanism 2, and the carrying mechanism 4 is fixed on the mounting seat 1. The three-dimensional scanning rangefinder body 5 rotates around the workpiece on the carrying mechanism 4 when the flipping mechanism 2 rotates. At this time, the three-dimensional scanning rangefinder body 5 can perform a ring scan on the front, back, left, and right sides of the workpiece. At the same time, when the flipping mechanism 2 rotates with the fixed position of the positioning mechanism 3 and the mounting seat 1 as the axis, the three-dimensional scanning rangefinder body 5 can perform a ring scan on the up, down, front, and back directions of the workpiece. When the flipping mechanism 2 rotates, there is no interference with the carrying mechanism 4, so the flipping mechanism 2 can rotate freely without a scanning dead angle. The workpiece is placed on the carrying mechanism 4 without being fixed, which is convenient for taking, and will not cause damage to the surface of the workpiece. The three-dimensional scanning rangefinder body 5 can perform a ring scan on the up, down, front, back, left, and right sides of the workpiece, so that the scanning work can be completed at one time. The distance between the carrier 402 and the three-dimensional scanning rangefinder body 5 is adjusted by the height of the carrying mechanism 4 to meet the placement requirements of workpieces of different sizes.

[0045] The mounting base 1 includes a base 101 and two sets of brackets 102; the two sets of brackets 102 are symmetrically fixed on the base 101, and grooves 1021 are opened on the inner sides of the brackets 102. The positioning mechanism 3 is rotatably connected in the groove 1021 on one side, and one side of the flip mechanism 2 is rotatably connected in the groove 1021 on the other side.

[0046] Reference Figure 1 and Figure 6 The brackets 102 are fixedly mounted on both sides of the upper surface of the base 101, and circular grooves 1021 are opened on the inner sides of the upper ends of the brackets 102. The positioning mechanism 3 and the flipping mechanism 2 are respectively rotatably connected in the two grooves 1021 to support the whole through the brackets 102. At the same time, the carrying mechanism 4 is fixed on the bracket 102 on one side and fixed on the axis of the groove 1021.

[0047] The flip mechanism 2 includes an outer gear ring 201, a first rotating mechanism 202 and a second rotating mechanism 203; the outer gear ring 201 is transmission-connected to the first rotating mechanism 202, the second rotating mechanism 203 is transmission-connected to the first rotating mechanism 202, the second rotating mechanism 203 is rotationally connected to the bracket 102, the three-dimensional scanning rangefinder body 5 is fixed on the inner side of the outer gear ring 201, the first rotating mechanism 202 includes a gear 2021 and a first stepper motor 2022; the first stepper motor 2022 is transmission-connected to the gear 2021, the gear 2021 is meshed with the outer gear ring 201, the second rotating mechanism 203 includes a first disk 2031 and a second stepper motor 2032, the first disk 2031 is rotationally connected to the groove 1021 on one side, and the second stepper motor 2032 is transmission-connected to the first disk 2031.

[0048] Reference Figure 2 and Figure 5 as well as Figure 7 The output shaft of the first stepper motor 2022 is coaxially fixed with the gear 2021, and the gear 2021 is meshed with the outer gear ring 201, and then the first stepper motor 2022 drives the gear 2021 to rotate, so that the outer gear ring 201 can rotate around the axis, and then rotate around the workpiece in the front, back, left and right directions. The first disc 2031 is rotatably connected to the groove 1021 on the right side through a bearing, and the output shaft of the second stepper motor 2032 is coaxially fixed with the first disc 2031, and the second stepper motor 2032 is fixed on the right side bracket 102. The outer gear ring 201 and the first disc 2031 are rotatably connected, and when the first disc 2031 rotates with the output shaft of the second stepper motor 2032 as the axis, the outer gear ring 201 at this time can perform a circular scan around the up, down, front and back directions of the workpiece.

[0049] The positioning mechanism 3 includes a tooth seat 301 and a second disc 302; the second disc 302 and the first disc 2031 are rotatably connected to the two grooves 1021 respectively, and the tooth seats 301 are fixedly installed on the opposite sides of the second disc 302 and the first disc 2031 away from the center of the circle, the tooth seat 301 is rotatably connected to the outer gear ring 201, and the tooth seat 301 is provided with a gear ring groove 3011 adapted to the outer gear ring 201, a fixing plate 501 is fixedly connected between the three-dimensional scanning rangefinder body 5 and the inner wall of the outer gear ring 201, and the tooth seat 301 is provided with an avoidance opening 3012 adapted to the fixing plate 501, and a through hole 3021 is provided at the axis of the second disc 302, and the carrying mechanism 4 passes through the through hole 3021 and is fixed to the bracket 102.

[0050] Reference Figure 3 and Figure 7 The second disc 302 is rotatably connected to the groove 1021 on the left side through a bearing, and a happy through hole 3021 is opened at the axis of the second disc 302. The carrying mechanism 4 passes through the through hole 3021 and is fixed to the bracket 102. The gear holder 301 is fixedly installed at the edge of the side opposite to the second disc 302 and the first disc 2031. Both gear holders 301 are provided with a gear ring groove 3011 and an avoidance opening 3012. The outer gear ring 201 rotates in the gear ring groove 3011 and avoids the outer gear ring 201 from being separated. At the same time, the three-dimensional scanning rangefinder body 5 is connected through the fixed plate 501. When the outer gear ring 201 drives the three-dimensional scanning rangefinder body 5 to rotate, the fixed plate 501 passes through the avoidance opening 3012 to ensure the normal rotation of the outer gear ring 201.

[0051] The carrying mechanism 4 includes a Z-shaped rod 401 and a carrier 402; one end of the Z-shaped rod 401 passes through the through hole 3021 and is fixed to the bracket 102, and the other end is fixed to the carrier 402. The height of the Z-shaped rod 401 is adjustable. The Z-shaped rod 401 includes a fixed rod 4011, an outer sleeve 4012, an inner rod 4013, a locking screw 4014 and a connecting rod 4015; the fixed rod 4011 is horizontally arranged and passes through the through hole 3021 and is fixed to the bracket 102, the outer sleeve 4012 is vertically fixed to the fixed rod 4011, the inner rod 4013 is slidably inserted into the outer sleeve 4012, the locking screw 4014 is threadedly connected to the outer sleeve 4012 and abuts against the inner rod 4013, the connecting rod 4015 is parallel to the fixed rod 4011 and one end is fixed to the inner rod 4013, and the other end is fixed to the carrier 402.

[0052] Reference Figure 1 and Figure 4The fixing rod 4011 is horizontally arranged and passes through the through hole 3021 to be fixed to the bracket 102, the outer sleeve 4012 is vertically fixed to the fixing rod 4011, the inner rod 4013 is slidably inserted into the outer sleeve 4012, and the locking screw 4014 is threadedly connected to the outer sleeve 4012, and then the height adjustment of the platform 402 is realized through the telescopic adjustment of the inner rod 4013 and the outer sleeve 4012, and through the Z-shaped structure of the Z-shaped rod 401, when the three-dimensional scanning rangefinder body 5 rotates in a circle around the workpiece in the horizontal direction, the outer sleeve 4012 and the inner rod 4013 are prevented from blocking the front of the three-dimensional scanning rangefinder body 5.

[0053] The carrier 402 is made of transparent tempered glass.

[0054] The carrier 402 is preferably made of transparent tempered glass. When the three-dimensional scanning rangefinder body 5 scans the bottom of the workpiece, since the working principle of the three-dimensional scanner is to obtain the diffuse reflection profile of the laser projected onto the surface of the scanned object, and glass is a transparent object and cannot complete reflection, the bottom of the workpiece can be scanned through the glass during the scanning process.

[0055] A three-dimensional scanning distance measuring device and a method for using the same, comprising at least the following method steps:

[0056] S1. By adjusting the height of the Z-shaped rod 401, the distance between the stage 402 and the three-dimensional scanning rangefinder body 5 is adjusted;

[0057] S2, place the workpiece to be scanned on the stage 402, start the second stepper motor 2032 to drive the positioning mechanism 3, the outer gear ring 201 and the three-dimensional scanning rangefinder body 5 to rotate about the through hole 3021, and rotate 360 ​​degrees, at this time, the three-dimensional scanning rangefinder body 5 performs a circular scan on the workpiece on the stage 402 in the up, down, front and back directions;

[0058] S3. Then, the first stepper motor 2022 drives the gear 2021 to rotate, and the gear 2021 drives the outer gear ring 201 to rotate. The outer gear ring 201 rotates in the horizontal direction of the axis of the carrier 402. At this time, the three-dimensional scanning rangefinder body 5 on the inner side of the outer gear ring 201 can perform circular scanning on the front, back, left and right directions of the workpiece.

Claims

1. A three-dimensional scanning distance measuring device, comprising a three-dimensional scanning distance measuring device body, characterized in that: include: A mounting seat, a flipping mechanism, a positioning mechanism and a carrying mechanism; the three-dimensional scanning rangefinder body is fixed on the inner side of the flipping mechanism, the flipping mechanism is rotatably connected to the mounting seat, the positioning mechanism is rotatably connected to the flipping mechanism, the positioning mechanism is rotatably connected to the mounting seat, the carrying mechanism is fixed on the mounting seat, the flipping mechanism rotates around the carrying mechanism, and the height of the carrying mechanism is adjustable.

2. A three-dimensional scanning distance measuring device according to claim 1, characterized in that: The mounting base includes a base and two groups of brackets; the two groups of brackets are symmetrically fixed on the base, and grooves are provided on the inner sides of the brackets. The positioning mechanism is rotatably connected in the groove on one side, and one side of the flipping mechanism is rotatably connected in the groove on the other side.

3. A three-dimensional scanning distance measuring device according to claim 1, characterized in that: The flipping mechanism includes an outer gear ring, a first rotating mechanism and a second rotating mechanism; the outer gear ring is transmission-connected to the first rotating mechanism, the second rotating mechanism is transmission-connected to the first rotating mechanism, the second rotating mechanism is rotationally connected to the bracket, and the three-dimensional scanning rangefinder body is fixed on the inner side of the outer gear ring.

4. A three-dimensional scanning distance measuring device according to claim 3, characterized in that: The first rotating mechanism includes a gear and a first stepper motor; the first stepper motor is transmission-connected to the gear, and the gear is meshed with the outer gear ring; the second rotating mechanism includes a first disc and a second stepper motor, the first disc is rotationally connected to a groove on one side, and the second stepper motor is transmission-connected to the first disc.

5. The three-dimensional scanning distance measuring device according to claim 1, characterized in that: The positioning mechanism includes a gear seat and a second disc; the second disc and the first disc are rotatably connected to the two grooves respectively, and gear seats are fixedly installed on the opposite sides of the second disc and the first disc away from the center of the circle, the gear seat is rotatably connected to the outer gear ring, the gear seat is provided with a gear ring groove adapted to the outer gear ring, a fixing plate is fixedly connected between the three-dimensional scanning rangefinder body and the inner wall of the outer gear ring, the gear seat is provided with an avoidance opening adapted to the fixing plate, a through hole is provided at the axis center of the second disc, and the carrying mechanism passes through the through hole and is fixed to the bracket.

6. A three-dimensional scanning distance measuring device according to claim 1, characterized in that: The object-carrying mechanism comprises a Z-shaped rod and a carrier; one end of the Z-shaped rod passes through a through hole and is fixed to the bracket, and the other end is fixed to the carrier; and the height of the Z-shaped rod is adjustable.

7. A three-dimensional scanning distance measuring device according to claim 6, characterized in that: The Z-shaped rod includes a fixed rod, an outer sleeve, an inner rod, a locking screw and a connecting rod; the fixed rod is horizontally arranged and passed through a through hole to be fixed to the bracket, the outer sleeve is vertically fixed to the fixed rod, the inner rod is slidably inserted into the outer sleeve, the locking screw is threadedly connected to the outer sleeve and abuts against the inner rod, the connecting rod is parallel to the fixed rod and one end is fixed to the inner rod, and the other end is fixed to the carrier.

8. A three-dimensional scanning distance measuring device according to claim 6, characterized in that: The carrier is made of transparent tempered glass.

9. A three-dimensional scanning distance measuring device and a method for using the same according to any one of claims 1 to 8, characterized in that: The method comprises at least the following steps: S1. By adjusting the height of the Z-shaped rod, the distance between the stage and the three-dimensional scanning rangefinder body is adjusted; S2, placing the workpiece to be scanned on the stage, starting the second stepper motor to drive the positioning mechanism, the outer gear ring and the 3D scanning rangefinder body to rotate 360 ​​degrees with the through hole as the axis, and then the 3D scanning rangefinder body performs a circular scan on the workpiece on the stage in the up, down, front and back directions; S3. Then the first stepper motor drives the gear to rotate, and the gear drives the outer gear ring to rotate. The outer gear ring rotates horizontally with the axis of the carrier. At this time, the three-dimensional scanning rangefinder body inside the outer gear ring can perform circular scanning on the front, back, left and right directions of the workpiece.

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