CN219368650U

CN219368650U - Three-dimensional reconstruction scanning device for mechanical parts

Info

Publication number: CN219368650U
Application number: CN202320326963.5U
Authority: CN
Inventors: 袁亮; 王亚东; 郑国权
Original assignee: Xinjiang University
Current assignee: Xinjiang University
Priority date: 2023-02-27
Filing date: 2023-02-27
Publication date: 2023-07-18
Anticipated expiration: 2033-02-27

Abstract

The utility model discloses a three-dimensional reconstruction scanning device of mechanical parts, which particularly relates to the technical field of three-dimensional reconstruction, and comprises a machine frame, a bearing plate, a carrying platform and a scanning assembly, wherein a scanning cabin is arranged in the machine frame, the bearing plate is fixedly arranged in the scanning cabin, the carrying platform comprises a connecting tray, the carrying platform is fixedly arranged in the connecting tray, the scanning assembly comprises a half gear ring, an annular guide chute is processed on the inner wall surface of the half gear ring, a gear is meshed on the half gear ring, a support is arranged on the outer side of the gear, a connecting shaft I is rotatably arranged at the upper end of the support, the gear is fixedly arranged on the connecting shaft I, a connecting shaft II is fixedly arranged at the lower end of the support, a guide pulley is rotatably connected on the connecting shaft II, and a scanning camera is fixedly arranged at the bottom end of the support. The utility model adopts a non-contact characteristic parameter acquisition structure, can carry out omnibearing scanning on mechanical parts, and provides reliable basic data for three-dimensional reconstruction.

Description

Three-dimensional reconstruction scanning device for mechanical parts

Technical Field

The utility model relates to the technical field of three-dimensional reconstruction, in particular to a three-dimensional reconstruction scanning device of a mechanical part.

Background

In manufacturing enterprises, the whole size calculation mapping is often required to be carried out on the produced mechanical parts so as to detect the degree of difference between the entity of the mechanical parts and the design model, thereby optimizing and improving the production process. In the prior art, the mechanical part is usually measured in a contact mode, which takes a long time, has the problem that measurement data cannot be effectively and accurately matched, and can not map the whole three-dimensional structure of the mechanical part.

Chinese patent publication No. CN217560566U discloses a three-dimensional reconstruction scanning device for parts, which can quickly obtain a 360-degree imaging photo series of the parts through orderly collection of a plurality of camera assemblies, and helps to synthesize a 3D point cloud model through a reconstruction technology, so that the image capturing is convenient and fast. The above patent uses contactless data acquisition for the components, but is realized by a larger number of camera modules, which is economically costly. The present device was invented by studying the above problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a three-dimensional reconstruction scanning device for mechanical parts, which solves the problems that in the prior art, a large number of camera components are adopted to acquire the characteristic parameters of the mechanical parts, and the economic cost is high.

In order to achieve the above object, the present utility model provides the following technical solutions: a three-dimensional reconstruction scanning device for mechanical parts, comprising:

a frame, in which a scanning cabin is arranged;

the bearing plate is fixedly arranged in the scanning cabin, and the top end of the bearing plate is provided with a mounting hole in a penetrating way;

the carrier comprises a connecting tray, the connecting tray is rotationally connected with the bearing plate through a mounting hole, and an objective table is fixedly arranged in the connecting tray;

the scanning assembly comprises a half gear ring, the half gear ring is fixedly arranged in the scanning cabin, an annular guide chute is formed in the inner wall surface of the half gear ring, a gear is meshed on the half gear ring, a support is arranged on the outer side of the gear, a first connecting shaft is rotatably arranged at the upper end of the support, the gear is fixedly arranged on the first connecting shaft, a second connecting shaft is fixedly arranged at the lower end of the support, a guide pulley is rotatably connected to the second connecting shaft, and a scanning camera is fixedly arranged at the bottom end of the support.

In a preferred embodiment, the four corners of the lower surface of the frame are fixedly provided with moving wheels.

In a preferred embodiment, the front side of the frame is hinged with a hatch, on which a viewing window is provided.

In a preferred embodiment, the scanning cabin is provided with a light bar on both the upper and lower side.

In a preferred embodiment, the stage has cross-shaped alignment marks machined thereon.

In a preferred embodiment, a motor frame is fixedly arranged on the lower surface of the top end of the bearing plate, a first stepping motor is fixedly arranged on the motor frame, and an output shaft of the first stepping motor is connected with the connecting tray.

In a preferred embodiment, a motor plate is fixedly mounted on the bracket, a second stepping motor is fixedly mounted on the motor plate, and an output shaft of the second stepping motor is connected with the first connecting shaft.

In a preferred embodiment, two connecting blocks are fixedly arranged on the left side surface and the right side surface of the machine frame, and threaded holes are formed in each connecting block in a penetrating mode.

In a preferred embodiment, each threaded hole is internally and spirally connected with a threaded rod, the top end of the threaded rod is fixedly provided with a hand wheel, and the bottom end of the threaded rod is fixedly provided with a reinforcing block.

In a preferred embodiment, the hand wheel is arranged above the connection block and the reinforcement block is arranged below the connection block.

Compared with the prior art, the utility model has the beneficial effects that:

1. the three-dimensional reconstruction scanning device of the mechanical part adopts a non-contact characteristic parameter acquisition structure, and only adopts one scanning camera to carry out omnibearing scanning on the mechanical part, thereby providing reliable basic data for three-dimensional reconstruction, and having reasonable structural design and lower economic cost;

2. the three-dimensional reconstruction scanning device of the mechanical part is provided with the movable wheels, the connecting blocks, the threaded rods, the hand wheels and the reinforcing blocks, the movable wheels enable the device to be easy to move and carry, and the reinforcing blocks strengthen the stability of the device.

Drawings

For a clearer description of embodiments of the present application or of the solutions in the prior art, the drawings that are needed in the embodiments will be briefly described, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and that other drawings can be obtained according to these drawings by a person having ordinary skill in the art.

Fig. 1 is a schematic structural diagram of embodiment 1 of the present utility model;

fig. 2 is a schematic diagram of the internal structure of a frame according to embodiment 1 of the present utility model;

FIG. 3 is a top view of a receiving plate and a carrier provided by the present utility model;

FIG. 4 is a side view of a receiving plate and carrier provided by the present utility model;

FIG. 5 is a schematic diagram of a scanning assembly according to the present utility model;

FIG. 6 is an exploded view of a scanning assembly provided by the present utility model;

fig. 7 is a schematic structural diagram of embodiment 2 of the present utility model.

Reference numerals illustrate:

1. a frame; 2. a scanning cabin; 3. a moving wheel; 4. a receiving plate; 5. a carrier; 501. a connection tray; 502. an objective table; 503. a motor frame; 504. a first stepping motor; 6. a scanning assembly; 601. a half gear ring; 602. an annular guide chute; 603. a gear; 604. a bracket; 605. a first connecting shaft; 606. a second connecting shaft; 607. a guide pulley; 608. a scanning camera; 609. a motor plate; 610. a second stepping motor; 7. a cabin door; 8. a light bar; 9. a cross positioning line; 10. a connecting block; 11. a threaded rod; 12. a hand wheel; 13. and (5) reinforcing the block.

Detailed Description

The drawings in the embodiments of the present utility model will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described; obviously; the described embodiments are only a few embodiments of the present utility model; but not all embodiments. Based on the embodiments in the present utility model; all other embodiments obtained by those skilled in the art without undue burden; all falling within the scope of the present utility model.

Example 1

Referring to fig. 1 to 6 of the drawings, a three-dimensional reconstruction scanning device for mechanical parts of this embodiment includes a frame 1, a receiving plate 4, a stage 5, and a scanning assembly 6.

The inside scanning cabin 2 that is provided with of frame 1, frame 1 front side articulates has hatch door 7, is provided with the observation window on the hatch door 7, and when scanning cabin 2 in-process scanning work, the scanning work of user accessible machine part is observed through the observation window.

The equal fixed mounting in frame 1 lower surface four corners department removes round 3, sets up and removes round 3, is convenient for realize the removal and the transport of this device, improves this device's flexibility.

In this embodiment, the light bars 8 are disposed on the upper side and the lower side of the scanning cabin 2, the control panel is disposed on the front side of the frame 1, and before performing the three-dimensional reconstruction scanning operation of the mechanical parts, the user needs to control parameters such as rotational speed, forward and reverse rotation time of the first stepping motor 504 and the second stepping motor 610 through the control panel to control the brightness of the light bars 8.

The bearing plate 4 is fixedly installed in the scanning cabin 2, the top end of the bearing plate 4 is penetrated and provided with a mounting hole, the carrying platform 5 comprises a connecting tray 501, the connecting tray 501 is rotationally connected with the bearing plate 4 through the mounting hole, an objective table 502 is fixedly installed in the connecting tray 501, a cross positioning line 9 is machined on the objective table 502, the cross positioning line 9 is arranged, a mechanical part is accurately placed by a user, the accuracy of measured values is ensured, a motor frame 503 is fixedly installed on the lower surface of the top end of the bearing plate 4, a first stepping motor 504 is fixedly installed on the motor frame 503, an output shaft of the first stepping motor 504 is connected with the connecting tray 501, in the scanning process, the output shaft of the first stepping motor 504 rotates to drive the connecting tray 501 to rotate, and the connecting tray 501 drives the objective table 502 and the mechanical part placed on the objective table 502 to rotate, so that the omnibearing scanning of the mechanical part is realized.

The scanning assembly 6 comprises a half gear ring 601, the half gear ring 601 is fixedly arranged in the scanning cabin 2, the half gear ring 601 is arranged right above the cross positioning line 9, an annular guide sliding groove 602 is machined on the inner wall surface of the half gear ring 601, a gear 603 is meshed with the half gear ring 601, a support 604 is arranged on the outer side of the gear 603, a first connecting shaft 605 is rotatably arranged at the upper end of the support 604, the gear 603 is fixedly arranged on the first connecting shaft 605, a motor plate 609 is fixedly arranged on the support 604, a second stepping motor 610 is fixedly arranged on the motor plate 609, an output shaft of the second stepping motor 610 is connected with the first connecting shaft 605, the second stepping motor 610 is started when scanning work is carried out, the output shaft of the second stepping motor 610 drives the first connecting shaft 605 to rotate, so as to drive the gear 603 to rotate, a second connecting shaft 606 is fixedly arranged at the lower end of the support 604, a guide pulley 607 is rotatably connected to the second connecting shaft 606, a scanning camera 608 is fixedly arranged at the bottom end of the support 604, and a 2D industrial camera is selected for use for the scanning camera 608.

In this embodiment, the annular guiding chute 602 is provided with two guiding pulleys 607, and the positions of the two annular guiding chutes 602 are in one-to-one correspondence with the positions of the two guiding pulleys 607, and the two guiding pulleys 607 are always in rolling connection with the two annular guiding chutes 602.

In the use process of the device, a user firstly places a mechanical part to be scanned and rebuilt on the objective table 502, realizes the positioning of the mechanical part by utilizing the cross positioning line 9, then closes the cabin door 7, controls various parameters in the scanning process by the control panel, firstly starts the second stepping motor 610 when the scanning process is carried out, the output end of the second stepping motor 610 drives the first connecting shaft 605 to rotate, realizes the rotation of the gear 603, and as the gear 603 is meshed with the half gear ring 601 and the guide pulley 607 is in rolling connection with the annular guide sliding groove 602, the gear 603 can drive the support 604 and the scanning camera 608 to move, the scanning camera 608 scans the mechanical part in the running process, reads the characteristic parameters, and after the gear 603 moves from one end of the half gear ring 601 to the other end, the first stepping motor 504 rotates, so that the rotation of the connecting tray 501, the objective table 502 and the mechanical part placed on the objective table 502 is realized, and after the mechanical part rotates by a certain angle, the second stepping motor 610 runs again, the scanning camera 608 scans the mechanical part at another angle, and the mechanical part at the same angle, and the operation is repeated, so that the full-direction scanning operation can be carried out, and the characteristic parameters are ensured. The device adopts a non-contact characteristic parameter acquisition structure, is convenient to operate, can carry out omnibearing scanning on mechanical parts, and provides reliable basic data for three-dimensional reconstruction.

Example 2

Referring to fig. 7 of the specification, a three-dimensional reconstruction scanning device for mechanical parts of this embodiment is basically the same as the structure of embodiment 1, and is different in that in this embodiment, two connection blocks 10 are fixedly installed on the left and right sides of the frame 1, threaded holes are formed in each connection block 10 in a penetrating manner, a threaded rod 11 is connected in each threaded hole, a hand wheel 12 is fixedly installed at the top end of the threaded rod 11, a reinforcing block 13 is fixedly installed at the bottom end of the threaded rod 11, wherein the hand wheel 12 is disposed above the connection block 10, and the reinforcing block 13 is disposed below the connection block 10.

The setting removes wheel 3, has improved the flexibility of this device, sets up threaded rod 11, hand wheel 12 and reinforcement piece 13, has improved the stability of this device, and after this device moved to the place of pointing, the staff rotated hand wheel 12, and hand wheel 12 drives threaded rod 11 and reinforcement piece 13 and moves down, until contact with ground to the stability of this device has been strengthened.

The above; is only a preferred embodiment of the present utility model; the scope of the utility model is not limited in this respect; any person skilled in the art is within the technical scope of the present disclosure; equivalent substitutions or changes are made according to the technical proposal of the utility model and the improved conception thereof; are intended to be encompassed within the scope of the present utility model.

Claims

1. A three-dimensional reconstruction scanning device for mechanical parts, comprising:

a frame (1) in which a scanning cabin (2) is provided;

the bearing plate (4) is fixedly arranged in the scanning cabin (2), and the top end of the bearing plate is provided with a mounting hole in a penetrating way;

the carrying platform (5) comprises a connecting tray (501), wherein the connecting tray (501) is rotationally connected with the bearing plate (4) through a mounting hole, and an objective table (502) is fixedly arranged in the connecting tray (501);

scanning subassembly (6), it includes half ring gear (601), half ring gear (601) fixed mounting is in scanning cabin (2), half ring gear (601) internal face processing has annular direction spout (602), the meshing has gear (603) on half ring gear (601), the gear (603) outside is provided with support (604), connecting axle one (605) are installed in support (604) upper end rotation to gear (603) fixed mounting is on connecting axle one (605), support (604) lower extreme fixed mounting has connecting axle two (606), rotate on connecting axle two (606) and be connected with direction pulley (607), support (604) bottom fixed mounting has scanning camera (608).

2. The three-dimensional reconstruction scanning apparatus for mechanical parts according to claim 1, wherein: the four corners of the lower surface of the machine frame (1) are fixedly provided with moving wheels (3).

3. The three-dimensional reconstruction scanning apparatus for mechanical parts according to claim 1, wherein: the front side of the machine frame (1) is hinged with a cabin door (7), and an observation window is arranged on the cabin door (7).

4. The three-dimensional reconstruction scanning apparatus for mechanical parts according to claim 1, wherein: the upper side and the lower side of the scanning cabin (2) are respectively provided with a lamp strip (8).

5. The three-dimensional reconstruction scanning apparatus for mechanical parts according to claim 1, wherein: the object stage (502) is provided with a cross positioning line (9).

6. The three-dimensional reconstruction scanning apparatus for mechanical parts according to claim 1, wherein: the motor frame (503) is fixedly mounted on the lower surface of the top end of the bearing plate (4), a first stepping motor (504) is fixedly mounted on the motor frame (503), and an output shaft of the first stepping motor (504) is connected with the connecting tray (501).

7. The three-dimensional reconstruction scanning apparatus for mechanical parts according to claim 1, wherein: the motor plate (609) is fixedly installed on the support (604), the second stepping motor (610) is fixedly installed on the motor plate (609), and an output shaft of the second stepping motor (610) is connected with the first connecting shaft (605).

8. The three-dimensional reconstruction scanning apparatus for mechanical parts according to claim 1, wherein: two connecting blocks (10) are fixedly installed on the left side surface and the right side surface of the machine frame (1), and threaded holes are formed in each connecting block (10) in a penetrating mode.

9. The three-dimensional reconstruction scanning apparatus for mechanical parts according to claim 8, wherein: every equal threaded connection of threaded hole has threaded rod (11), threaded rod (11) top fixed mounting has hand wheel (12), threaded rod (11) bottom fixed mounting has reinforcing block (13).

10. The three-dimensional reconstruction scanning apparatus for mechanical parts according to claim 9, wherein: the hand wheel (12) is arranged above the connecting block (10), and the reinforcing block (13) is arranged below the connecting block (10).