Electro-optical angle adjusting device

Abstract

The utility model belongs to the field of optics, and relates to an electric optical angle adjusting device which comprises a fixing plate, an adjusting plate, a supporting point, an adjusting mechanism, a limiting mechanism and a first extension spring. The adjusting plate and the fixing plate are arranged in parallel; the supporting point is arranged between the fixing plate and the adjusting plate; the first extension spring is arranged between the fixing plate and the adjusting plate and connected with the fixing plate and the adjusting plate. The adjusting mechanism is connected with the adjusting plate and drives the adjusting plate to move on the supporting point relative to the fixed plate; the limiting mechanism is arranged between the adjusting mechanism and the adjusting plate and connected with the adjusting mechanism and the adjusting plate. The utility model provides the electric optical angle adjusting device which can limit the adjusting range and is convenient to use.

Description

Technical Field

[0001] The utility model belongs to the field of optics, and relates to an angle adjusting device, in particular to an electric optical angle adjusting device. Background Art

[0002] Optical angle adjustment frames are widely used in the field of optical precision machinery and are often used to adjust the spatial beam attitude of optical elements (such as beam expanders), enabling the beam to be transmitted according to the required geometric relationship. The common angle adjustment mechanism is that the operator manually rotates the lead screw with an adjustment handle to directly push the adjustment plate to achieve the angle change of the adjustment plate. The adjustment accuracy and adjustment amount both depend on the technical level of the operator, and it is difficult to achieve the optical path debugging effect with high precision and high standards.

[0003] In the invention patent with the authorization announcement number CN108415137B, an optical angle adjustment frame is disclosed. It mainly includes a base plate, a first adjustment plate, a second adjustment plate, a first drive assembly, and a second drive assembly. The drive assembly consists of a drive base, a lead screw, a guide slide bar, a V-groove block, and a locking screw. The base plate and the first adjustment plate, as well as the first adjustment plate and the second adjustment plate, are respectively connected to each other through leaf springs and provide a restoring force. The present invention has the characteristics of simple structure and small angle change when locked after the angle adjustment is completed.

[0004] In the invention application with the publication number CN109818239A, a multi-dimensional adjustment frame applied to a laser is disclosed. A transfer seat is supported by three steel balls at the top of the transverse wall of the base, and a fine-thread screw pair is used to drive the single and double push rods to push up the steel balls. By controlling the lifting of different steel balls, the crystals and lenses carried by the multi-dimensional adjustment frame can be adjusted up and down and swung in an arc; by directly pushing the transfer seat through two groups of fine-thread screw pairs on the side of the base, the crystals and lenses carried by the multi-dimensional adjustment frame can be rotated and moved forward and backward. The present invention can perform rotation, arc swing, up and down, forward and backward, and left and right attitude adjustments on some laser crystals, lenses, and crystal constant temperature control devices located in a limited space on one side, achieving multi-dimensional adjustment of the laser crystals and lenses in a limited space on one side.

[0005] However, although the aforementioned CN108415137B and CN109818239A can adjust the attitude of optical elements, they also have the following deficiencies: 1) The angle adjustment depends on manually rotating the adjustment screw by hand to implement the angle adjustment, which cannot meet the requirements of the electrified and automated optical path adjustment scenarios; 2) There is a lack of adjustment stroke limit, which is prone to over-travel adjustment and causes the adjustment mechanism to fail. Summary of the Utility Model

[0006] In order to solve the above technical problems existing in the background art, the present utility model provides an electric optical angle adjustment device that can limit the adjustment range and is convenient to use.

[0007] To achieve the above object, the present utility model adopts the following technical solutions:

[0008] An electric optical angle adjustment device, characterized in that: the electric optical angle adjustment device includes a fixed plate, an adjustment plate, a support point, an adjustment mechanism, a limiting mechanism, and a first tension spring; the adjustment plate is arranged in parallel with the fixed plate; the support point is arranged between the fixed plate and the adjustment plate; the first tension spring is arranged between the fixed plate and the adjustment plate and is respectively connected to the fixed plate and the adjustment plate; the adjustment mechanism is connected to the adjustment plate and drives the adjustment plate to move relative to the fixed plate on the support point; the limiting mechanism is placed between the adjustment mechanism and the adjustment plate and is respectively connected to the adjustment mechanism and the adjustment plate.

[0009] The above-mentioned limiting mechanism includes a first limiting piece; the first limiting piece is placed between the adjustment mechanism and the adjustment plate and is respectively connected to the adjustment mechanism and the adjustment plate.

[0010] The above-mentioned limiting mechanism further includes a second limiting piece; the second limiting piece is placed on the side of the fixed plate and the side of the adjustment plate and is respectively connected to the fixed plate and the adjustment plate.

[0011] The above-mentioned adjustment mechanism includes a horizontal swing adjustment mechanism and a pitch adjustment mechanism; the horizontal swing adjustment mechanism is connected to the adjustment plate and drives the adjustment plate to make a horizontal swing relative to the fixed plate on the support point; the pitch adjustment mechanism is connected to the adjustment plate and drives the adjustment plate to make a pitch movement relative to the fixed plate on the support point; the first limiting piece is placed between the horizontal swing adjustment mechanism and the adjustment plate and is respectively connected to the horizontal swing adjustment mechanism and the adjustment plate.

[0012] The above-mentioned horizontal swing adjustment mechanism includes a fixed block and a first piezoelectric screw; the fixed block is arranged on the side of the fixed plate and the side of the adjustment plate; the fixed block is movably connected to the fixed plate by a screw; the first piezoelectric screw penetrates through the fixed block along the thickness direction of the fixed block and abuts against the side of the adjustment plate; the first piezoelectric screw drives the adjustment plate to make a pitch movement relative to the fixed plate on the support point; the first limiting piece is placed between the fixed block and the adjustment plate and is respectively connected to the fixed block and the adjustment plate.

[0013] The above-mentioned horizontal swing adjustment mechanism further includes a second tension spring placed between the fixed block and the fixed plate and respectively connected to the fixed block and the fixed plate.

[0014] The above-mentioned pitching adjustment mechanism includes a second piezoelectric screw; the second piezoelectric screw penetrates through the adjustment plate along the thickness direction of the adjustment plate and is fixedly connected to the adjustment plate; the second piezoelectric screw drives the adjustment plate to perform a pitching motion relative to the fixed plate at the support point.

[0015] The above-mentioned support point includes a first support point, and the first support point includes a groove positioning block arranged on the upper surface of the fixed plate and a spherical surface positioning block arranged on the lower surface of the adjustment plate; the groove positioning block is placed at the projection of the spherical surface positioning block on the fixed plate; the spherical surface positioning block is in spherical surface fit with the groove positioning block.

[0016] The above-mentioned support point further includes a second support point, and the second support point includes a plane positioning block arranged on the upper surface of the fixed plate and a spherical surface positioning block arranged on the lower surface of the adjustment plate; the plane positioning block is placed at the projection of the spherical surface positioning block on the fixed plate.

[0017] The above-mentioned first tension springs are multiple, and the multiple first tension springs are arranged in parallel.

[0018] The advantages of the present utility model are:

[0019] The present utility model provides an electric optical angle adjustment device, which includes a fixed plate, an adjustment plate, a support point, an adjustment mechanism, a limit mechanism and a first tension spring; the adjustment plate is arranged in parallel with the fixed plate; the support point is arranged between the fixed plate and the adjustment plate; the first tension spring is arranged between the fixed plate and the adjustment plate and is respectively connected to the fixed plate and the adjustment plate; the adjustment mechanism is connected to the adjustment plate and drives the adjustment plate to move relative to the fixed plate at the support point; the limit mechanism is placed between the adjustment mechanism and the adjustment plate and is respectively connected to the adjustment mechanism and the adjustment plate. The electric optical angle adjustment device provided by the present utility model avoids the adjustment posture of the adjustment mechanism deviating too much from the theoretical position through the adjustment and limitation of the limit mechanism, ensuring the stability and reliability of the device. At the same time, the electric optical angle adjustment device provided by the present utility model introduces a piezoelectric screw, and can upgrade the traditional manual rotation screw adjustment method to an electric adjustment method, with high adjustment accuracy, convenient adjustment, and avoiding the efficiency difference problem caused by the technical differences of debugging personnel. Description of the Drawings

[0020] Figure 1 is the front view structural schematic diagram of the electric optical angle adjustment device provided by the present utility model;

[0021] Figure 2 is the top view structural schematic diagram of the electric optical angle adjustment device provided by the present utility model;

[0022] Figure 3 is the right view structural schematic diagram of the electric optical angle adjustment device provided by the present utility model;

[0023] Figure 4 is a schematic structural view of the fixing plate adopted by the present utility model;

[0024] Figure 5 is an exploded structural view of the electric optical angle adjusting device provided by the present utility model;

[0025] Wherein:

[0026] 1 - fixing plate, 2 - adjusting plate, 3 - fixing block, 4 - groove positioning block, 5 - spherical positioning block, 6 - plane positioning block, 7 - first limiting piece, 8 - second limiting piece, 9 - first piezoelectric screw; 10 - second piezoelectric screw; 13 - second tension spring; 14 - screw; 15 - first tension spring. Specific embodiments

[0027] Referring to Figures 1 to 5 , the present utility model provides an electric optical angle adjusting device, including a fixing plate 1, an adjusting plate 2, a support point, an adjusting mechanism, a limiting mechanism, and a first tension spring 15; the adjusting plate 2 is arranged in parallel with the fixing plate 1; the support point is arranged between the fixing plate 1 and the adjusting plate 2; the first tension spring 15 is arranged between the fixing plate 1 and the adjusting plate 2 and is respectively connected to the fixing plate 1 and the adjusting plate 2; the adjusting mechanism is connected to the adjusting plate 2 and drives the adjusting plate 2 to move relative to the fixing plate 1 on the support point; the limiting mechanism is placed between the adjusting mechanism and the adjusting plate 2 and is respectively connected to the adjusting mechanism and the adjusting plate 2. The electric optical angle adjusting device provided by the present utility model adjusts and limits through the limiting mechanism, avoiding the adjusting posture of the adjusting mechanism deviating too much from the theoretical position and ensuring the stability of the device.

[0028] Referring to Figure 2 , Figure 3 , Figure 4 and Figure 5 , the limiting mechanism adopted by the present utility model includes a first limiting piece 7; the first limiting piece 7 is placed between the adjusting mechanism and the adjusting plate 2 and is respectively connected to the adjusting mechanism and the adjusting plate 2. In addition, in order to better perform limiting, the limiting mechanism adopted by the present utility model further includes a second limiting piece 8; the second limiting piece 8 is placed on the side of the fixing plate 1 and the side of the adjusting plate 2 and is respectively connected to the fixing plate 1 and the adjusting plate 2. Referring to Figure 2 , Figure 3 and Figure 5 , the first limiting piece 7 and the second limiting piece 8 are fixed on the adjusting plate 2 by screws 14, the screws 14 pass through the first limiting piece 7 and the second limiting piece 8 and are fixed on the fixing plate 1, and the limiting holes reserved on the first limiting piece 7 and the second limiting piece 8 form adjusting limits in two directions with the screws 14, avoiding the adjusting posture of the adjusting mechanism deviating too much from the theoretical position and ensuring the stability of the device.

[0029] The adjustment mechanism adopted by the present utility model includes a horizontal swing adjustment mechanism and a pitch adjustment mechanism; the horizontal swing adjustment mechanism is connected to the adjustment plate 2 and drives the adjustment plate 2 to make a horizontal swing relative to the fixed plate 1 at the support point; the pitch adjustment mechanism is connected to the adjustment plate 2 and drives the adjustment plate 2 to make a pitch movement relative to the fixed plate 1 at the support point; the first limit piece 7 is placed between the horizontal swing adjustment mechanism and the adjustment plate 2 and is respectively connected to the horizontal swing adjustment mechanism and the adjustment plate 2. The horizontal swing adjustment mechanism and the pitch adjustment mechanism can drive the adjustment plate 2 to perform corresponding attitude adjustments, making it more flexible to use.

[0030] Exemplarily, refer to Figure 1 and Figure 5 , the horizontal swing adjustment mechanism adopted by the present utility model includes a fixed block 3 and a first piezoelectric screw 9; the fixed block 3 is arranged on the side part of the fixed plate 1 and the side part of the adjustment plate 2; the fixed block 3 is movably connected to the fixed plate 1 through a screw 14; the first piezoelectric screw 9 penetrates through the fixed block 3 along the thickness direction of the fixed block 3 and abuts against the side part of the adjustment plate 2; the first piezoelectric screw 9 drives the adjustment plate 2 to make a pitch movement relative to the fixed plate 1 at the support point; the first limit piece 7 is placed between the fixed block 3 and the adjustment plate 2 and is respectively connected to the fixed block 3 and the adjustment plate 2. In addition, the horizontal swing adjustment mechanism further includes a second tension spring 13 placed between the fixed block 3 and the fixed plate 1 and respectively connected to the fixed block 3 and the fixed plate 1. The second tension spring 13 in the horizontal direction is stuck between the fixed plate 1 and the adjustment plate 2 to generate a horizontal pulling force, combined with the support point C, so as to realize the pre-tightening force between the fixed plate 1 and the adjustment plate 2 in the horizontal direction. The electric optical angle adjustment device provided by the present utility model introduces a piezoelectric screw, and the traditional manual rotation screw adjustment method can be upgraded to an electric adjustment method, with high adjustment accuracy and convenient adjustment, avoiding the problem of efficiency difference caused by the technical differences of debugging personnel. Exemplarily, refer to Figure 1 , Figure 2 and Figure 3 , the pitch adjustment mechanism includes a second piezoelectric screw 10; the second piezoelectric screw 10 penetrates through the adjustment plate 2 along the thickness direction of the adjustment plate 2 and is fixedly connected to the adjustment plate 2; the second piezoelectric screw 10 drives the adjustment plate 2 to make a pitch movement relative to the fixed plate 1 at the support point.

[0031] When the present utility model is specifically adjusted, refer to Figure 3 , Figure 4 and Figure 5, the second piezoelectric screw 10 in the vertical direction adjusts the telescopic movement of the screw head through electricity, and the adjusting plate 2 can generate a rotational degree of freedom around the connection line between the support point A and the support point B, so as to realize the pitching adjustment function of the adjusting plate 2; the first piezoelectric screw 9 in the horizontal direction adjusts the telescopic movement of the screw head through electricity, and the adjusting plate 2 can generate a rotational degree of freedom around the support point A in the horizontal direction, so as to realize the yaw adjustment function of the adjusting plate. Of course, the adjustment ranges of the electric optical angle adjustment device provided by the present invention are all fine adjustments.

[0032] See Figure 1 , Figure 4 and Figure 5 , the support points include a first support point, and the first support point includes a groove positioning block 4 provided on the upper surface of the fixed plate 1 and a spherical surface positioning block 5 provided on the lower surface of the adjusting plate 2; the groove positioning block 4 is placed at the projection of the spherical surface positioning block 5 on the fixed plate 1; the spherical surface positioning block 5 is in spherical surface cooperation with the groove positioning block 4. More preferably, the support points adopted by the present invention further include a second support point, and the second support point includes a plane positioning block 6 provided on the upper surface of the fixed plate 1 and a spherical surface positioning block 5 provided on the lower surface of the adjusting plate 2; the plane positioning block 6 is placed at the projection of the spherical surface positioning block 5 on the fixed plate 1. Exemplarily, see Figure 4 , the groove positioning block 4 installed on the fixed plate 1 and the spherical surface positioning block 5 installed on the adjusting plate 2 are in contact and cooperate to form a support point A that can rotate freely in space; the plane positioning block 6 installed on the fixed plate 1 and the spherical surface positioning block 5 installed on the adjusting plate 2 are in contact and cooperate to form a support point B that can move freely in the plane; the first piezoelectric screw 9 in the horizontal direction connected to the fixed plate 1 through the fixing block 3 and the side surface of the adjusting plate 2 are in contact and cooperate to form a support point C that can swing in the plane; similarly, the second piezoelectric screw 10 in the vertical direction installed on the adjusting plate 2 and the fixed plate 1 are in contact and cooperate to form a support point D that can perform plane pitching motion.

[0033] See Figure 2 and Figure 4 , there are multiple first tension springs 15, and multiple first tension springs 15 are arranged in parallel. Exemplarily, four groups of first tension springs 15 in the vertical direction are respectively stuck in the grooves of the fixed plate 1 and the adjusting plate 2 to generate a vertical pulling force, so as to realize the pre-tightening force in the vertical direction between the fixed plate and the adjusting plate 2.

Claims

1. An electric optical angle adjustment device, characterized in that: The electric optical angle adjustment device includes a fixing plate (1), an adjustment plate (2), a support point, an adjustment mechanism, a limiting mechanism, and a first tension spring (15); the adjustment plate (2) is arranged in parallel with the fixing plate (1); the support point is arranged between the fixing plate (1) and the adjustment plate (2); the first tension spring (15) is arranged between the fixing plate (1) and the adjustment plate (2) and is respectively connected to the fixing plate (1) and the adjustment plate (2); the adjustment mechanism is connected to the adjustment plate (2) and drives the adjustment plate (2) to move relative to the fixing plate (1) on the support point; the limiting mechanism is arranged between the adjustment mechanism and the adjustment plate (2) and is respectively connected to the adjustment mechanism and the adjustment plate (2).

2. The electro-optical angle adjustment device according to claim 1, characterized in that: The limiting mechanism includes a first limiting piece (7); the first limiting piece (7) is arranged between the adjustment mechanism and the adjustment plate (2) and is respectively connected to the adjustment mechanism and the adjustment plate (2).

3. The electro-optical angle adjustment device according to claim 2, wherein: The limiting mechanism further includes a second limiting piece (8); the second limiting piece (8) is arranged on the side part of the fixing plate (1) and the side part of the adjustment plate (2) and is respectively connected to the fixing plate (1) and the adjustment plate (2).

4. The electro-optical angle adjustment device according to claim 3, characterized in that: The adjustment mechanism includes a horizontal swing adjustment mechanism and a pitch adjustment mechanism; the horizontal swing adjustment mechanism is connected to the adjustment plate (2) and drives the adjustment plate (2) to make a horizontal swing relative to the fixing plate (1) on the support point; the pitch adjustment mechanism is connected to the adjustment plate (2) and drives the adjustment plate (2) to make a pitch movement relative to the fixing plate (1) on the support point; the first limiting piece (7) is arranged between the horizontal swing adjustment mechanism and the adjustment plate (2) and is respectively connected to the horizontal swing adjustment mechanism and the adjustment plate (2).

5. The electro-optical angle adjustment device according to claim 4, characterized in that: The horizontal swing adjustment mechanism includes a fixed block (3) and a first piezoelectric screw (9); the fixed block (3) is arranged on the side part of the fixing plate (1) and the side part of the adjustment plate (2); the fixed block (3) is movably connected to the fixing plate (1) through a screw (14); the first piezoelectric screw (9) penetrates through the fixed block (3) along the thickness direction of the fixed block (3) and abuts against the side part of the adjustment plate (2); the first piezoelectric screw (9) drives the adjustment plate (2) to make a pitch movement relative to the fixing plate (1) on the support point; the first limiting piece (7) is arranged between the fixed block (3) and the adjustment plate (2) and is respectively connected to the fixed block (3) and the adjustment plate (2).

6. The electro-optical angle adjusting device according to claim 5, characterized in that: The horizontal swing adjustment mechanism further includes a second tension spring (13) arranged between the fixed block (3) and the fixing plate (1) and respectively connected to the fixed block (3) and the fixing plate (1).

7. The electro-optical angle adjustment device according to claim 6, wherein: The pitch adjustment mechanism includes a second piezoelectric screw (10); the second piezoelectric screw (10) penetrates through the adjustment plate (2) along the thickness direction of the adjustment plate (2) and is fixedly connected to the adjustment plate (2); the second piezoelectric screw (10) drives the adjustment plate (2) to make a pitch movement relative to the fixing plate (1) on the support point.

8. The electro-optical angle adjustment device according to any one of claims 1-7, characterized in that: The support points include a first support point, and the first support point includes a groove positioning block (4) provided on the upper surface of the fixed plate (1) and a spherical surface positioning block (5) provided on the lower surface of the adjusting plate (2); the groove positioning block (4) is placed at the projection of the spherical surface positioning block (5) on the fixed plate (1); the spherical surface positioning block (5) is in spherical surface fit with the groove positioning block (4).

9. The electro-optical angle adjustment device according to claim 8, characterized in that: The support points further include a second support point, and the second support point includes a planar positioning block (6) provided on the upper surface of the fixed plate (1) and a spherical surface positioning block (5) provided on the lower surface of the adjusting plate (2); the planar positioning block (6) is placed at the projection of the spherical surface positioning block (5) on the fixed plate (1).

10. The electro-optical angle adjustment device according to claim 9, characterized in that: The plurality of first tension springs (15) are arranged in parallel.

Images