Horizontal adjusting device for photocuring 3D printing machine

Abstract

The utility model discloses a photocuring 3D printing ray machine horizontal adjusting device which comprises a base, a ray machine fixing frame, a spherical hinge, an elastic connecting piece and a micrometer head, and the ray machine fixing frame is used for installing and fixing a ray machine; a first part of the ray machine fixing frame is connected with the base through the spherical hinge, and a second part, a third part and a fourth part of the ray machine fixing frame are respectively connected with the base through the elastic connecting pieces in a stretching state; the second part, the third part and the fourth part of the optical machine fixing frame are respectively provided with one micrometer head, and the pitching of the second part, the pitching of the third part and the pitching of the fourth part are adjusted by rotating the micrometer heads, so that the horizontal adjustment of the optical machine fixing frame is realized.

Description

Technical Field

[0001] The utility model relates to a light-curing 3D printing optical machine level adjustment device, belonging to the DLP (Digital Light Processing, digital light processing) 3D printing technical field. Background Art

[0002] DLP light-curing 3D printing technology is a method of 3D printing using the principle of digital light processing. Its basic principle is: first, use 3D printing software to slice the 3D model and horizontally divide it into multiple layers of two-dimensional images; then project it layer by layer to the focal plane through the optical machine, and the resin on the focal plane is selectively cured based on the digital light of each layer, and stacked layer by layer to form the final 3D printed object. It can be seen that in the light-curing 3D printing process, if the optical machine is not in the correct horizontal position, the digital light cannot be accurately projected to the focal plane, which will cause the molded pattern to be inconsistent with the actual sliced ​​pattern, and ultimately cause the printed object to be inconsistent with the 3D model, affecting the molding quality. It can be seen that it is necessary to design a solution specifically for horizontal adjustment of the optical machine. Utility Model Content

[0003] The main purpose of the utility model is to provide a light-curing 3D printing light machine level adjustment device, which is used to accurately level the DLP light machine to solve the problem that the light-curing 3D printing molding quality is affected by the uneven light machine.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes the following technical solutions:

[0005] A device for adjusting the level of a light-curing 3D printing optical machine comprises a base, an optical machine fixing frame, a ball joint, an elastic connecting piece and a micrometer head, wherein the optical machine fixing frame is used to install and fix the optical machine; a first portion of the optical machine fixing frame is connected to the base via the ball joint, and a second portion, a third portion and a fourth portion of the optical machine fixing frame are respectively connected to the base via the elastic connecting piece in a stretched state; a micrometer head is respectively installed at the second portion, the third portion and the fourth portion of the optical machine fixing frame, and the pitch of the second portion, the third portion and the fourth portion is adjusted by rotating the micrometer head to achieve horizontal adjustment of the optical machine fixing frame.

[0006] The beneficial effect of the technical solution of the utility model is that the optical machine horizontal adjustment device provided by the utility model, because the ball joint and the optical machine fixing frame are rigidly connected, and the other three points are elastically connected, the optical machine fixing frame can rotate with the fixed position of the ball joint as the fulcrum, and combined with the function of the elastic connector at the other three points and the adjustment of the micrometer head, the optical machine fixing frame can be quickly and accurately adjusted horizontally. Compared with the adjustment method of three-point positioning, the optical machine horizontal adjustment device of the utility model limits the degree of freedom of one point, thereby reducing the time required for leveling.

[0007] Furthermore, the ball joint is a universal ball joint, the chassis of the universal ball joint is fixed on the base, and the ball is connected to the optical machine fixing frame. Furthermore, a threaded mounting hole is provided on the ball, and the optical machine fixing frame is connected to the ball by means of a screw that cooperates with the threaded mounting hole.

[0008] Furthermore, on the base, stroke supplement blocks are fixed at positions corresponding to the respective micrometer heads, and the stroke supplement blocks are used to abut against the micrometer screw of the micrometer head. Furthermore, a groove is provided on the top of the stroke supplement block, and the groove is configured to accommodate the end of the micrometer screw. Since the stroke of the micrometer head is relatively limited, when the distance between the base and the optical machine fixing frame is large and the stroke of the micrometer head is insufficient, the stroke supplement block fixed on the base reduces the distance between the base and the optical machine fixing frame, which is equivalent to playing a role of stroke supplement.

[0009] Furthermore, the micrometer head is threadedly connected to the optical machine fixing frame through its external thread.

[0010] Furthermore, at the second part, the third part, and the fourth part, one or more elastic connecting members are provided beside each of the micrometer heads. Furthermore, the elastic connecting members are tension springs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of a light-curing 3D printing machine level adjustment device according to an embodiment of the utility model.

[0012] Figure 2 It is a schematic diagram of a universal ball joint according to an embodiment of the utility model.

[0013] Explanation of the reference numerals: 1-DLP optical machine; 10-base, 101-stroke supplement block; 20-optical machine fixing frame; 30-ball joint, 301-chassis, 302-ball, 303-threaded mounting hole; 40-elastic connecting part; 50-differential head, 501-knob, 502-locking nut, 503-micrometer screw. DETAILED DESCRIPTION

[0014] The present invention is further described below with reference to the accompanying drawings and in combination with specific implementation methods and examples. The purpose of providing the examples is for illustration only and does not impose any limitation. In addition, the spatial orientation words such as "upper", "lower", "left", and "right" used in the description of the technical solution of the present invention are used to facilitate the description of the relative position relationship between the components of the product, and do not mean that the product has only the orientation shown in the figure. In actual use, as the product orientation changes, the spatial description used to describe the relative position relationship between the components of the product should also be interpreted in a similar manner.

[0015] Please refer to Figure 1 The embodiment of the utility model provides a device for adjusting the level of a light-curing 3D printing optical machine, which includes a base 10, an optical machine fixing frame 20, a ball joint 30, an elastic connector 40 and a micrometer head 50. The optical machine fixing frame 20 is used to install and fix the DLP optical machine 1. Since the DLP optical machine 1 is fixed on the optical machine fixing frame 20, the horizontality of the two is consistent. Therefore, the embodiment of the utility model adjusts the level of the DLP optical machine 1 by adjusting the horizontality of the optical machine fixing frame 20. Specifically, one corner of the optical machine fixing frame 20 is rigidly connected to the base 10 through the ball joint 30, and the other triangle is connected to the base 10 through the elastic connector 40, and a micrometer head 50 is installed at each of the other triangles of the optical machine fixing frame 20. In this way, the ball joint serves as a fulcrum, and the pitch of the part (i.e., the change in distance relative to the base) can be achieved by adjusting the micrometer head 50 to achieve the level adjustment of the entire optical machine fixing frame.

[0016] The micrometer head of the present utility model embodiment is also called a micrometer head or a micrometer. Figure 1 By rotating the knob 501 of the micrometer head 50, the micrometer screw 503 moves forward or backward. When moving forward, it moves toward the base 10, and when moving backward, it moves away from the base 10. When it moves into place, it is locked by the locking nut 502. When the micrometer head at a certain position is turned to make the micrometer screw 503 move forward (move downward), the micrometer screw 503 abuts against the base 10, which makes the part of the optical machine fixing frame 20 away from the base; on the contrary, when the micrometer screw 503 moves backward (moves upward), it no longer abuts against the base 10, the reaction force of the base disappears, and under the pulling force of the elastic connecting member, the part is close to the base.

[0017] Since the travel of the micrometer head is usually small, when the distance between the optical machine fixing frame 20 and the base 10 is greater than the travel of the micrometer head, a travel supplement block 101 can be set on the base 10, such as Figure 1, specifically, the position is directly opposite to the micrometer head. In this way, the distance between the base 10 and the optical machine fixing frame 20 is reduced at the micrometer head, ensuring that the micrometer head can play a normal adjustment role. The stroke supplement block 101 can be cylindrical, and preferably, a shallow groove can be opened on the top to accommodate the end of the micrometer screw 503. Since the micrometer head 50 is a known component, the more detailed structural composition is not repeated, and it can be fixedly connected to the optical machine fixing frame 20 by an external thread.

[0018] refer to Figure 1 and Figure 2 The ball joint 30 is a universal ball joint, the chassis 301 of which is fixed on the base 10, and a threaded mounting hole 303 is provided on the ball 302. The optical machine fixing frame 20 is connected to the ball 302 by the cooperation of the screw and the threaded mounting hole 303.

[0019] refer to Figure 1 The elastic connecting member 40 is preferably a tension spring, which is located beside the micrometer head 50. In some specific embodiments, a tension spring is provided on the left and right sides of each micrometer head 50. It should be understood that the position of the tension spring is not limited to the position shown in this embodiment and the figure, and the number of tension springs is not limited to two at each of the three corners, and should be selected according to the distance between the base and the optical machine fixing frame, the parameters of the tension spring, etc.

[0020] In summary, in the above-mentioned optical machine horizontal adjustment device provided by the embodiment of the utility model, the optical machine fixing frame is connected to the base through four corners, one of which is rigidly connected by a ball joint and serves as a rotation fulcrum; the other three corners are elastically connected and serve as adjustment points. The pitch adjustment at the three corners is performed using a differential head to achieve fast and accurate horizontal adjustment of the optical machine fixing frame.

[0021] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For technicians in the technical field to which the present invention belongs, several equivalent substitutions or obvious variations can be made without departing from the concept of the present invention, and the performance or use is the same, which should be regarded as belonging to the protection scope of the present invention.

Claims

1. A light-curing 3D printing machine level adjustment device, characterized in that: It includes a base, an optical machine fixing frame, a ball joint, an elastic connector and a micrometer head, wherein the optical machine fixing frame is used to install and fix the optical machine; The first part of the optical machine fixing frame is connected to the base through the ball joint, and the second part, the third part and the fourth part of the optical machine fixing frame are connected to the base through the elastic connector in a stretched state respectively; A differential head is respectively installed at the second part, the third part and the fourth part of the optical machine fixing frame, and the pitch of the second part, the third part and the fourth part is adjusted by rotating the differential head to achieve horizontal adjustment of the optical machine fixing frame.

2. The light-curing 3D printing machine level adjustment device according to claim 1, characterized in that: The ball joint is a universal ball joint, the chassis of the universal ball joint is fixed on the base, and the ball is connected to the optical machine fixing frame.

3. The light-curing 3D printing machine level adjustment device according to claim 2, characterized in that: The ball bearing is provided with a threaded mounting hole, and the optical machine fixing frame is connected to the ball bearing by means of a screw cooperating with the threaded mounting hole.

4. The light-curing 3D printing machine level adjustment device according to claim 1, characterized in that: On the base, stroke supplement blocks are respectively fixed at positions corresponding to the respective micrometer heads, and the stroke supplement blocks are used to abut against the micrometer screw of the micrometer head.

5. The light-curing 3D printing machine level adjustment device according to claim 4, characterized in that: A groove is formed on the top of the stroke supplement block, and the groove is configured to accommodate the end of the micrometer screw.

6. The light-curing 3D printing machine level adjustment device according to claim 1, characterized in that: The micrometer head is threadedly connected to the optical machine fixing frame through its external thread.

7. The light-curing 3D printing machine level adjustment device according to claim 1, characterized in that: At the second part, the third part and the fourth part, one or more elastic connecting parts are provided on the side of each of the micrometer heads.

8. The light-curing 3D printing machine level adjustment device according to claim 1 or 7, characterized in that: The elastic connecting member is a tension spring.

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