High-precision scanning device for 3D manufacturing

Abstract

The utility model discloses a high-precision scanning device for 3D manufacturing, which relates to the technical field of high-precision scanning devices for 3D manufacturing, and comprises a bracket, a placement table is arranged in the bracket, a plurality of groups of supporting columns are arranged at the upper end of the placement table, a balancing weight is arranged at the lower end of the placement table, a rotating bearing is arranged in the balancing weight, and a rotating shaft is arranged in the rotating bearing. A second motor is arranged at the lower end of the balancing weight, and a transmission rod is arranged at the upper end of the second motor. According to the high-precision scanning device for 3D manufacturing, special-shaped parts can be placed on the supporting columns which are annularly arranged and have the height difference, so that a user does not need to hold the special-shaped parts for scanning, anti-skid silica gel pads are arranged at the upper ends of the supporting columns and make contact with the parts, the parts are prevented from shifting when the placing table rotates, and the parts can be conveniently placed on the placing table through balancing weights. And the gravity center of rotation of the placement table is controlled in the middle of the placement table, so that the situation that the gravity center of the placement table shifts due to the placed parts and the rotation effect is affected is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of high-precision scanning devices for 3D manufacturing, and in particular to a high-precision scanning device for 3D manufacturing. Background Art

[0002] In the manufacturing industry, with the upgrading and iteration of products, the requirements for material molding dimensional accuracy are becoming higher and higher. Therefore, in the casting industry, after the 3D printing investment wax, metal casting and other molding processes are completed, a composite three-dimensional scanner is usually required for 3D scanning. Only after scanning can the dimensional accuracy be verified. In order to ensure that the technical requirement of error does not exceed 0.01mm, the parts must be placed horizontally.

[0003] When the existing high-precision scanning device for 3D manufacturing is installed and used, a certain centripetal force will be applied to the object during rotation, which may cause the object to shake or shift, causing the center of gravity to shift during rotation of the device, and the rotation is not smooth enough. In addition, objects with a smooth outer surface at the base still require the user to hold the scanner and rotate around the part to scan, which makes the scanning unstable, the scanning accuracy cannot be guaranteed, and the efficiency is low, which brings certain adverse effects to people's use process. In order to solve the shortcomings of the existing technology, we propose a high-precision scanning device for 3D manufacturing. Utility Model Content

[0004] The main purpose of the utility model is to provide a high-precision scanning device for 3D manufacturing, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A high-precision scanning device for 3D manufacturing, comprising a bracket, a placing table is arranged inside the bracket, a plurality of supporting columns are arranged at the upper end of the placing table, a counterweight is arranged at the lower end of the placing table, a rotating bearing is arranged inside the counterweight, a second motor is arranged at the lower end of the counterweight, a transmission rod is arranged at the upper end of the second motor, two groups of fixed frames are symmetrically arranged on the left and right sides of the bracket, a balance bar is arranged between the two groups of fixed frames on the left, a first screw is arranged between the two groups of fixed frames on the right, a third motor is arranged at one end of the first screw, a C-shaped frame is arranged on the outer wall of the first screw and the balance bar, a second screw is arranged inside the C-shaped frame, a first motor is arranged at one end of the second screw, a movable frame is arranged on the outer wall of the second screw, a 3D scanner is arranged at the lower end of the movable frame, and four groups of ball bearings are symmetrically arranged between the placing table and the bracket.

[0007] Preferably, a rotation groove is provided between the ball and the bracket, the ball and the bracket are movably connected via the rotation groove, the first screw and the threaded connection, the transmission rod and the counterweight block are movably connected via a rotating bearing, a rotation groove is provided between the first screw and the fixed frame, the first screw and the fixed frame are movably connected via the rotation groove, and the second screw and the movable frame are threadedly connected.

[0008] Preferably, a rotation groove is provided between the second screw and the C-shaped frame, the second screw and the C-shaped frame are movably connected through the rotation groove, the ball bearing and the placement table are welded, the support column is annularly spaced at the upper end of the placement table, and the size of the support column increases according to the distance between the support column and the center of the placement table, and an anti-slip silicone pad is provided at the upper end of the support column.

[0009] Preferably, the fixing frame and the bracket are welded, the first screw rod and the balance rod are of equal length and diameter, the outer wall of the balance rod is smooth, and the balance rod is used to maintain the balance of the C-shaped frame.

[0010] Preferably, screws are provided between the movable frame and the 3D scanner, the movable frame and the 3D scanner are detachably connected via the screws, and an accommodating cavity is provided between the first motor and the C-shaped frame.

[0011] Preferably, a fixing frame is provided between the second motor and the bracket, and the counterweight block is in a funnel shape.

[0012] Beneficial Effects

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, by providing structures such as support columns and counterweight blocks, multiple groups of support columns that are arranged in a ring and have height differences can place special-shaped parts, so that users do not need to scan by hand, and the upper ends of the support columns are in contact with the parts with non-slip silicone pads to prevent the parts from shifting when the placement table rotates. The counterweight block can control the center of gravity of the placement table to the middle position of the placement table to prevent the placed parts from causing the center of gravity of the placement table to shift and affect the rotation effect.

[0015] 2. In the utility model, by setting the first screw and the second screw and other structures, the front and back, left and right positions of the 3D scanner can be changed, and the parts can be rotated on the placement table to scan the features of the parts at multiple angles, thereby avoiding the problem of being unable to start building a complete 3D model due to the incompleteness of a certain part of the scan data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2This is a schematic diagram of the combined structure of the placement table and the support column of the utility model;

[0018] Figure 3 It is a schematic diagram of the combined structure of the rotary bearing and the counterweight block of the utility model;

[0019] Figure 4 It is a schematic diagram of the combined structure of the movable frame and the second screw rod of the utility model.

[0020] In the figure: 1. bracket; 2. first screw; 3. C-shaped frame; 4. first motor; 5. 3D scanner; 6. placement table; 7. support column; 8. second motor; 9. ball; 10. counterweight; 11. transmission rod; 12. rotating bearing; 13. third motor; 14. movable frame; 15. balance rod; 16. fixed frame; 17. second screw. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-Figure 4 As shown, a high-precision scanning device for 3D manufacturing, the counterweight 10 is funnel-shaped, and the center of the upper and lower ends of the counterweight 10 is coaxial with the center of the transmission rod 11, a rotation groove is provided between the ball 9 and the bracket 1, the ball 9 and the bracket 1 are movably connected through the rotation groove, the support column 7 is arranged at an annular interval at the upper end of the placement table 6, and the size of the support column 7 increases according to the distance between the support column 7 and the center of the placement table 6, and the upper end of the support column 7 is provided with an anti-slip silicone pad.

[0023] like Figure 1-Figure 4 As shown, the first screw 2 is threadedly connected, a rotation groove is provided between the first screw 2 and the fixed frame 16, the first screw 2 and the fixed frame 16 are movably connected through the rotation groove, the second screw 17 is threadedly connected to the movable frame 14, the first screw 2 and the balance rod 15 are of equal length and diameter, the outer wall of the balance rod 15 is smooth, and the balance rod 15 is used to maintain the balance of the C-shaped frame 3.

[0024] It should be noted that the utility model is a high-precision scanning device for 3D manufacturing. When in use, the user places the parts on the placement table 6, and multiple groups of support columns 7 support the parts. The second motor 8 drives the transmission rod 11 to rotate, and the transmission rod 11 drives the placement table 6 to rotate. The ball 9 rotates in the bracket 1, providing a certain support force for the edge position of the placement table 6, and also increasing the stability of the placement table 6 during rotation, so that the parts are driven to rotate stably. The silicone pad on the upper end of the support column 7 increases the friction between the parts to prevent the parts from being thrown out of the upper end of the placement table 6 due to the centripetal force.

[0025] The third motor 13 drives the first screw 2 to rotate, the first screw 2 drives the C-shaped frame 3 to move forward and backward, the first motor 4 drives the second screw 17 to rotate, and the second screw 17 drives the movable frame 14 to move left and right, so that the 3D scanner 5 can change its position forward and backward and left and right. The 3D scanner 5 scans the surface of the part at multiple angles to ensure the accuracy of the scanning.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-precision scanning device for 3D manufacturing, comprising a support (1), Features: A placing platform (6) is arranged inside the bracket (1), a plurality of supporting columns (7) are arranged at the upper end of the placing platform (6), a counterweight (10) is arranged at the lower end of the placing platform (6), a rotating bearing (12) is arranged inside the counterweight (10), a second motor (8) is arranged at the lower end of the counterweight (10), a transmission rod (11) is arranged at the upper end of the second motor (8), two groups of fixing frames (16) are symmetrically arranged on the left and right sides of the bracket (1), a balancing rod (15) is arranged between the two groups of fixing frames (16) on the left, and a balancing rod (15) is arranged between the two groups of fixing frames (16) on the right. A first screw rod (2) is arranged between the frame (16), a third motor (13) is arranged at one end of the first screw rod (2), a C-shaped frame (3) is arranged on the outer wall of the first screw rod (2) and the balance rod (15), a second screw rod (17) is arranged inside the C-shaped frame (3), a first motor (4) is arranged at one end of the second screw rod (17), a movable frame (14) is arranged on the outer wall of the second screw rod (17), a 3D scanner (5) is arranged at the lower end of the movable frame (14), and four groups of balls (9) are symmetrically arranged between the placement table (6) and the bracket (1).

2. A high-precision scanning device for 3D manufacturing according to claim 1, Features: A rotation groove is provided between the ball (9) and the bracket (1), the ball (9) and the bracket (1) are movably connected via the rotation groove, the first screw rod (2) is threadedly connected, the transmission rod (11) and the counterweight (10) are movably connected via a rotary bearing (12), a rotation groove is provided between the first screw rod (2) and the fixed frame (16), the first screw rod (2) and the fixed frame (16) are movably connected via the rotation groove, and the second screw rod (17) is threadedly connected to the movable frame (14).

3. A high-precision scanning device for 3D manufacturing according to claim 1, Features: A rotation groove is provided between the second screw rod (17) and the C-shaped frame (3), the second screw rod (17) and the C-shaped frame (3) are movably connected via the rotation groove, the ball bearing (9) and the placement table (6) are welded, the support column (7) is arranged at an annular interval on the upper end of the placement table (6), and the size of the support column (7) increases according to the distance between the support column (7) and the center of the placement table (6), and an anti-slip silicone pad is provided on the upper end of the support column (7).

4. The high-precision scanning device for 3D manufacturing according to claim 1, Features: The fixing frame (16) and the bracket (1) are welded, the first screw rod (2) and the balance rod (15) are of equal length and diameter, the outer wall of the balance rod (15) is smooth, and the balance rod (15) is used to maintain the balance of the C-shaped frame (3).

5. The high-precision scanning device for 3D manufacturing according to claim 2, Features: Screws are provided between the movable frame (14) and the 3D scanner (5), and the movable frame (14) and the 3D scanner (5) are detachably connected via the screws; and an accommodating cavity is provided between the first motor (4) and the C-shaped frame (3).

6. A high-precision scanning device for 3D manufacturing according to claim 2, Features: A fixing frame is provided between the second motor (8) and the bracket (1), and the counterweight (10) is in the shape of a funnel.

Images