Lifting adjustment device and levelling platform

Abstract

The utility model belongs to the field of additive manufacturing relates to a kind of lifting adjustment device and leveling platform, the lifting adjustment device includes rotating assembly, cylinder and base;Cylinder is overall hollow structure;Rotating assembly and base are sequentially arranged in cylinder from top to bottom;Rotating assembly is connected with base and drives base to lift along the cylinder axial direction freely.The utility model provides a kind of lifting adjustment device and leveling platform with high adjustment precision and can reduce the operation difficulty.

Description

Technical Field

[0001] This utility model belongs to the field of additive manufacturing and relates to a lifting and adjusting device and a leveling platform, especially a leveling platform for assisting in the calibration of optical components. Background Technology

[0002] In laser stereolithography, optical components often require calibration using a leveling platform. Most existing methods involve directly calibrating the optical components on the printed substrate, leveling the substrate by using steel strips or adjusting screws at the four corners. This method demands high flatness of the substrate surface and requires skilled operators. Using steel strips necessitates frequent substrate movement, which is time-consuming, and the adjusting screws offer low precision, making it difficult to control the adjustment accuracy to the micrometer level manually. Therefore, the required precision for high-precision optical component calibration is insufficient. Utility Model Content

[0003] In order to solve the above-mentioned technical problems in the background art, the present invention provides a lifting adjustment device and leveling platform with high adjustment accuracy and reduced operation difficulty.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A lifting and adjusting device is characterized in that: the lifting and adjusting device includes a rotating component, a cylinder and a base; the cylinder is generally hollow; the rotating component and the base are arranged sequentially from top to bottom in the cylinder; the rotating component is connected to the base and drives the base to move freely up and down along the cylinder axis.

[0006] The aforementioned rotating assembly includes a drive gear shaft, a gear transmission assembly, and a transmission lead screw; the transmission lead screw is arranged axially inside the cylinder body; the transmission lead screw is threadedly connected to the base; the drive gear shaft is connected to the gear transmission assembly; the gear transmission assembly is connected to the transmission lead screw; the drive gear shaft drives the transmission lead screw to rotate around the axis of the transmission lead screw through the gear transmission assembly; the transmission lead screw drives the base to move freely up and down along the cylinder body axis.

[0007] The aforementioned gear transmission assembly includes a gear and a reduction gear set; the driving gear shaft meshes with the reduction gear set; the reduction gear set meshes with the gear; the gear is mounted on the outside of the transmission lead screw and is fixedly connected to the transmission lead screw; the driving gear shaft drives the transmission lead screw to rotate around the axis of the transmission lead screw through the reduction gear set and the gear.

[0008] The aforementioned reduction gear set is a two-stage or three-stage reduction gear set.

[0009] The aforementioned lifting and adjusting device also includes a lead screw support assembly positioned inside the cylinder along the cylinder's axial direction; the lead screw support assembly surrounds the outside of the transmission lead screw.

[0010] The aforementioned lifting and adjusting device also includes a lifting assembly; the rotating assembly, the lifting assembly, and the base are arranged sequentially from top to bottom in the cylinder; the lifting assembly is fixedly mounted on the base; the rotating assembly is threadedly connected to the lifting assembly; the rotating assembly drives the base to move freely up and down along the cylinder axis through the lifting assembly.

[0011] The aforementioned lifting assembly includes a lead screw nut and a guide block; the rotating assembly is threadedly connected to the lead screw nut; the lead screw nut is fixed on the base; the guide block is disposed on the side wall of the base; a guide groove is provided on the inner wall of the cylinder; the guide block is placed in the guide groove and slides freely within the guide groove; the axial direction of the guide groove is parallel to the axial direction of the cylinder.

[0012] The end of the aforementioned drive gear shaft is provided with a wrench working groove, the wrench working groove being in the shape of a straight line, a cross, or an internal hexagon.

[0013] The aforementioned lifting and adjusting device also includes a cover plate on the top of the cylinder; the area of ​​the cover plate is larger than the area of ​​the inner cavity of the cylinder.

[0014] A leveling platform, characterized in that: the leveling platform includes a marble platform, and the marble platform is provided with a through hole penetrating the thickness of the marble platform; the through hole is one or more; and the lifting adjustment device as described above is embedded in the through hole.

[0015] The advantages of this utility model are:

[0016] This invention provides a lifting and adjusting device and a leveling platform. The lifting and adjusting device includes a rotating component, a cylinder, and a base. The cylinder has a hollow structure. The rotating component and the base are arranged sequentially from top to bottom within the cylinder. The rotating component is connected to the base and drives the base to move freely up and down along the cylinder axis. The lifting and adjusting device provided by this invention integrates a reduction gear set in the rotating component, allowing adjustment of the rotating component using a wrench. The rotating component then drives the base to adjust its height, simplifying and reducing operational difficulty while achieving micron-level precision adjustment. Applying this invention to a marble platform simplifies the leveling operation of optical components, improves the adjustment accuracy of the marble platform, and its integrated design makes it applicable to marble platforms of different sizes, enhancing its versatility. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the lifting and adjusting device provided by this utility model;

[0018] Figure 2This is a top view of the lifting and adjusting device provided by this utility model;

[0019] Figure 3 This is a schematic diagram of the leveling platform provided by this utility model;

[0020] in:

[0021] 1-Marble platform; 2-Lifting and adjusting device; 201-Cylinder body; 202-Base; 203-Guide block; 204-Transmission screw; 205-Screw nut; 206-Screw support assembly; 207-Cover plate; 208-Gear; 209-Secondary reduction gear set; 210-Drive gear shaft. Detailed Implementation

[0022] See Figure 1 This utility model provides a lifting and adjusting device, including a rotating component, a cylinder 201, and a base 202. The cylinder 201 has a hollow structure. The rotating component and the base 202 are arranged sequentially from top to bottom in the cylinder 201. For example, the inside of the cylinder 201 forms a T-shaped cavity. The rotating component is placed in the upper part of the T-shaped cavity, i.e., in a horizontal position; the base 202 is placed in the lower part of the T-shaped cavity, i.e., in a vertical position. In use, by rotating the rotating component, the base 202 connected to the rotating component can be moved freely up and down along the axial direction of the cylinder 201. The base 202 extends or retracts (lifts and lowers) from the T-shaped cavity of the cylinder 201, ultimately achieving height adjustment of the object to be adjusted.

[0023] See Figure 1 as well as Figure 2 The rotating assembly used in this invention includes a drive gear shaft 210, a gear transmission assembly, and a transmission screw 204. The transmission screw 204 is arranged inside the cylinder body 201 along the axial direction of the cylinder body 201. The transmission screw 204 is threadedly connected to the base 202. The drive gear shaft 210 is connected to the gear transmission assembly. The gear transmission assembly is connected to the transmission screw 204. The drive gear shaft 210 drives the transmission screw 204 to rotate around the axial direction of the transmission screw 204 through the gear transmission assembly. The transmission screw 204 drives the base 202 to move freely up and down along the axial direction of the cylinder body 201. For example, the drive gear shaft 210 and the gear transmission assembly are arranged together in the upper part of the T-shaped cavity, and the transmission screw 204 extends into the lower part of the T-shaped cavity, located in the axial direction of the cylinder body 201. It should be noted that, in order to prevent the base 202 from rotating along with the transmission screw 204 during rotation, a side lug can be provided on the side wall of the base 202. On the side wall of the T-shaped cavity, especially on the side wall of the lower part of the T-shaped cavity, a protrusion or groove can be provided to limit the side lug. This can ensure that the transmission screw 204 can directly drive the cylinder 201 of the base 202 to move freely up and down axially during rotation.

[0024] To improve the accuracy of the adjustment, see Figure 2 The gear transmission assembly used in this utility model includes a gear 208 and a reduction gear set; the driving gear shaft 210 meshes with the reduction gear set; the reduction gear set meshes with the gear 208; the gear 208 is fitted onto the outside of the transmission lead screw 204 and is fixedly connected to the transmission lead screw 204; the driving gear shaft 210 drives the transmission lead screw 204 to rotate around the axis of the transmission lead screw 204 through the reduction gear set and the gear 208. Depending on the different reduction ratios, the reduction gear set can be a two-stage reduction gear set 209 or a three-stage reduction gear set or more; the larger the reduction ratio, the higher the adjustment accuracy.

[0025] To reduce or prevent the transmission lead screw 204 from swaying during rotation, the lifting adjustment device provided by this utility model further includes a lead screw support assembly 206 disposed inside the cylinder body 201 along the axial direction of the cylinder body 201; the lead screw support assembly 206 surrounds the outside of the transmission lead screw 204. For example, the lead screw support assembly 206 has a hollow cylindrical structure and is fixed in a T-shaped cavity along the axial direction of the cylinder body 201 by screws.

[0026] See Figure 1 For example, the lifting and adjusting device provided by this utility model further includes a lifting assembly; the rotating assembly, the lifting assembly, and the base 202 are arranged sequentially from top to bottom in the cylinder 201; the lifting assembly is fixedly mounted on the base 202; the rotating assembly is threadedly connected to the lifting assembly; the rotating assembly drives the base 202 to move freely up and down along the axial direction of the cylinder 201 through the lifting assembly. For example, the lifting assembly used in this utility model includes a lead screw nut 205 and a guide block 203; the rotating assembly is threadedly connected to the lead screw nut 205; the lead screw nut 205 is fixed on the base 202; the guide block 203 is disposed on the side wall of the base 202; a guide groove is provided on the inner wall of the cylinder 201; the guide block 203 is placed in the guide groove and slides freely in the guide groove; the axial direction of the guide groove is parallel to the axial direction of the cylinder 201.

[0027] The drive gear shaft 210 used in this invention has a wrench working groove at its end. The wrench working groove is in the shape of a straight line, a cross, or an internal hexagon. A conventional wrench that matches the wrench working groove can be used to directly drive the drive gear shaft 210 to rotate.

[0028] For example, see Figure 1The structural transmission principle of the lifting and adjusting device provided by this utility model is described in detail, using a hexagonal wrench as the working groove: The drive gear shaft 210 is rotated using an internal hexagonal wrench. The rotational power of the wrench is transmitted to the transmission screw 204 through a two-stage reduction gear set 209 and gear 208. Then, the rotational motion of the wrench is converted into the up-and-down motion of the screw nut 205 through the cooperation of the transmission screw 204 and screw nut 205. The screw nut 205 is fixedly connected to the base 202. The guide block 203 serves as a guide structure for the base 202, preventing the base 202 from rotating during movement. The cylinder 201 and the support assembly 206 serve as a base, supporting the rotational motion of the transmission screw and the up-and-down motion of the base. Through a series of reductions in the reduction gear set and the transmission of the screw nut 205, the rotational motion of the wrench can be converted into up-and-down motion while improving the motion accuracy several times to meet the high-precision requirements of the lifting and adjusting device.

[0029] See Figure 1 The lifting and adjusting device provided by this utility model also includes a cover plate 207 on the top of the cylinder 201; the area of ​​the cover plate 207 is larger than the area of ​​the inner cavity of the cylinder 201.

[0030] See Figure 3 This utility model also provides a leveling platform, which includes a marble platform 1. The marble platform 1 has through holes penetrating its thickness; there can be one or more through holes. For example, this utility model uses four through holes, and each of the four through holes can be equipped with a lifting adjustment device 2 as described above. This utility model uses the marble platform 1 as a reference plane for calibrating optical elements. Its high-precision flatness meets the requirements for optical element calibration. By using a wrench to adjust the lifting adjustment devices 2 at the four corners of the marble platform 1, the height of the four corners can be adjusted to a specified position with an adjustment accuracy down to the micrometer level.

Claims

1. A lifting and adjusting device, characterized in that: The lifting and adjusting device includes a rotating component, a cylinder (201), and a base (202); the cylinder (201) has a hollow structure; the rotating component and the base (202) are arranged in the cylinder (201) from top to bottom; the rotating component is connected to the base (202) and drives the base (202) to move freely up and down along the axis of the cylinder (201).

2. The lifting and adjusting device according to claim 1, characterized in that: The rotating assembly includes a drive gear shaft (210), a gear transmission assembly, and a transmission screw (204); the transmission screw (204) is arranged inside the cylinder body (201) along the axial direction of the cylinder body (201); the transmission screw (204) is threadedly connected to the base (202); the drive gear shaft (210) is connected to the gear transmission assembly; the gear transmission assembly is connected to the transmission screw (204); the drive gear shaft (210) drives the transmission screw (204) to rotate around the axial direction of the transmission screw (204) through the gear transmission assembly; the transmission screw (204) drives the base (202) to move freely up and down along the axial direction of the cylinder body (201).

3. The lifting and adjusting device according to claim 2, characterized in that: The gear transmission assembly includes a gear (208) and a reduction gear set; the drive gear shaft (210) meshes with the reduction gear set; the reduction gear set meshes with the gear (208); the gear (208) is fitted outside the transmission screw (204) and fixedly connected to the transmission screw (204); the drive gear shaft (210) drives the transmission screw (204) to rotate around the axis of the transmission screw (204) through the reduction gear set and the gear (208).

4. The lifting and adjusting device according to claim 3, characterized in that: The reduction gear set is at least a two-stage reduction gear set (209).

5. The lifting and adjusting device according to claim 4, characterized in that: The lifting adjustment device also includes a lead screw support assembly (206) located inside the cylinder body (201) along the axial direction of the cylinder body (201); the lead screw support assembly (206) surrounds the outside of the transmission lead screw (204).

6. The lifting and adjusting device according to any one of claims 2-5, characterized in that: The lifting adjustment device also includes a lifting component; the rotating component, the lifting component and the base (202) are arranged in the cylinder (201) from top to bottom; the lifting component is fixedly arranged on the base (202); the rotating component is threadedly connected to the lifting component; the rotating component drives the base (202) to move freely up and down along the cylinder (201) axis through the lifting component.

7. The lifting and adjusting device according to claim 6, characterized in that: The lifting assembly includes a lead screw nut (205) and a guide block (203); the rotating assembly is threadedly connected to the lead screw nut (205); the lead screw nut (205) is fixed on the base (202); the guide block (203) is disposed on the side wall of the base (202); the inner wall of the cylinder (201) is provided with a guide groove; the guide block (203) is placed in the guide groove and slides freely in the guide groove; the axial direction of the guide groove is parallel to the axial direction of the cylinder (201).

8. The lifting and adjusting device according to claim 7, characterized in that: The end of the drive gear shaft (210) is provided with a wrench working groove, the wrench working groove being in the shape of a straight line, a cross, or an internal hexagon.

9. The lifting and adjusting device according to claim 8, characterized in that: The lifting adjustment device also includes a cover plate (207) on the top of the cylinder (201); the area of ​​the cover plate (207) is larger than the area of ​​the inner cavity of the cylinder (201).

10. A leveling platform, characterized in that: The leveling platform includes a marble platform (1), and the marble platform (1) is provided with a through hole penetrating the thickness of the marble platform (1); the through hole is one or more; and the lifting adjustment device as described in any one of claims 1-9 is embedded in the through hole.

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