Photoelectric pod optical axis adjusting device

Abstract

The invention relates to the technical field of optical axis calibration, in particular to a photoelectric pod optical axis adjusting device. Comprising a pressing module, a supporting column, a first supporting arm, a rotary adapter, a second supporting arm, a base, a table top, a control terminal and a gyroscope, the base and the control terminal are arranged above the table top, one end of the second supporting arm is rotationally connected with the base, the rotary adapter is rotationally connected with the other end of the second supporting arm, one end of the first supporting arm is rotationally connected with the rotary adapter, and the other end of the first supporting arm is rotationally connected with the control terminal. The supporting column is fixedly connected with the other end of the first supporting arm, the pressing module penetrates through the supporting column, and a gyroscope is arranged on the pressing module; through the above structure, the optical machine assembly is enabled to be aligned with the target, and the effect of effectively improving the convenience, accuracy and efficiency of optical axis adjustment of the optical machine assembly is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of optical axis calibration, and particularly to an optical axis calibration device for an optoelectronic pod. Background Art

[0002] As an important part of modern equipment such as unmanned aerial vehicles and reconnaissance aircraft, the calibration accuracy of the optical axis of an optoelectronic pod directly affects the target recognition, tracking, and positioning capabilities.

[0003] Currently, the overall optical axis alignment of the opto-mechanical components of an optoelectronic pod adopts a manual calibration method. When aligning the optical axis with the target, due to jitter factors, the convenience, accuracy, and efficiency of optical axis calibration are restricted. Summary of the Invention

[0004] The purpose of the present invention is to provide an optical axis calibration device for an optoelectronic pod, which solves the problem that the convenience, accuracy, and efficiency of optical axis calibration are restricted due to jitter factors when the opto-mechanical components of the current optoelectronic pod align the optical axis with the target.

[0005] To achieve the above purpose, an optical axis calibration device for an optoelectronic pod adopted by the present invention includes a pressing module, a support column, a first arm, a rotary adapter, a second arm, a base, a tabletop, a control terminal, and a gyro. The base and the control terminal are respectively arranged above the tabletop. One end of the second arm is rotatably connected to the base, the rotary adapter is rotatably connected to the other end of the second arm, one end of the first arm is rotatably connected to the rotary adapter, the support column is fixedly connected to the other end of the first arm, the pressing module penetrates through the support column, and the gyro is arranged on the pressing module.

[0006] Wherein, the pressing module includes an adjusting shaft rod and two groups of pressing units. The adjusting shaft rod is fixedly connected to the support column and penetrates through the support column, and the pressing units are respectively arranged at both ends of the adjusting shaft rod.

[0007] Wherein, each pressing unit includes an opto-mechanical pressure rod, a spring, a support plate, and a pin. The adjusting shaft rod penetrates through the support plate, the opto-mechanical pressure rod is slidably connected to the support plate, both ends of the spring are respectively connected to the opto-mechanical pressure rod and the support plate, and the spring surrounds the outer sidewall of the opto-mechanical pressure rod. The pin penetrates through the support plate and is inserted into the adjusting shaft rod.

[0008] Among them, the support column includes an upper support block, a first damping bearing, a shaft rod, and a lower support block. The lower support block is fixedly connected to the first arm. The first damping bearing is fixedly connected to the lower support block. The upper support block is rotatably connected to the lower support block. The shaft rod is rotatably connected to the first damping bearing and penetrates through the first damping bearing and the upper support block respectively. The adjusting shaft rod penetrates through the upper support block.

[0009] Among them, the rotary adapter includes an adapter section, a rotary joint, and a second damping bearing. The adapter section is rotatably connected to the second arm and is located at one end of the second arm away from the base. The rotary joint is arranged on the adapter section. The second damping bearing is fixedly connected to the first arm. The rotary joint is rotatably connected to the second damping bearing.

[0010] In an optical axis calibration device for an optoelectronic pod of the present invention, motors for rotation are respectively arranged on the pressing module, the support column, and the rotary adapter. When the optical-mechanical assembly needs to be calibrated, the optical-mechanical assembly is installed on the pressing module. According to the specifications of the optical-mechanical assembly, the pressing module is initially adjusted, and then the pressing module is used to clamp the optical-mechanical assembly to preliminarily align the reference optical axis with the target. The optical-mechanical assembly, the optoelectronic pod optical axis calibration device, and the motors are respectively powered on. If the optical-mechanical assembly is not straight, the corresponding compensation angle value in the roll direction is input using the control terminal until the optical-mechanical assembly faces forward. Observe the deviation distance between the reference axis and the target, and input the compensation values in the azimuth direction and the pitch direction using the control terminal until the target is aligned. During calibration, due to the jitter caused by the environment, the induction of the gyro is fed back to the control terminal to drive the motor to rotate by an angle to compensate for the offset caused by the jitter, so as to keep the optical-mechanical assembly stable. Through the above structure, the optical-mechanical assembly is kept aligned with the target, achieving the effects of effectively improving the convenience, accuracy, and efficiency of the optical axis calibration of the optical-mechanical assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0012] Figure 1 is a schematic structural diagram of the optoelectronic pod optical axis calibration device of the present invention.

[0013] Figure 2 is a front view of the structure of the optoelectronic pod optical axis calibration device of the present invention.

[0014] Figure 3It is a side view of the structure of the optical axis calibration device of the optoelectronic pod of the present invention.

[0015] Figure 4 It is a schematic structural diagram of the pressing module and the support column of the present invention.

[0016] Figure 5 It is a partial structural schematic diagram of the support column of the present invention.

[0017] Figure 6 It is a schematic structural diagram of the rotary adapter of the present invention.

[0018] 100 - opto - mechanical assembly, 10 - pressing module, 11 - opto - mechanical pressure rod, 12 - spring, 13 - support plate, 14 - pin, 15 - adjusting shaft rod, 20 - support column, 21 - upper support block, 22 - first damping bearing, 23 - shaft rod, 24 - lower support block, 30 - first arm, 40 - rotary adapter, 41 - adapter section, 42 - adapter joint, 43 - second damping bearing, 50 - second arm, 60 - base, 70 - table top, 80 - control terminal, 90 - gyroscope. Detailed implementation manners

[0019] Please refer to Figures 1 to 6 wherein Figure 1 is a schematic structural diagram of the optical axis calibration device of the optoelectronic pod, Figure 2 is a front view of the structure of the optical axis calibration device of the optoelectronic pod, Figure 3 is a side view of the structure of the optical axis calibration device of the optoelectronic pod, Figure 4 is a schematic structural diagram of the pressing module and the support column, Figure 5 is a partial structural schematic diagram of the support column, Figure 6 is a schematic structural diagram of the rotary adapter.

[0020] The present invention provides an optical axis calibration device for an optoelectronic pod, including a pressing module 10, a support column 20, a first arm 30, a rotary adapter 40, a second arm 50, a base 60, a table top 70, a control terminal 80 and a gyroscope 90. The base 60 and the control terminal 80 are respectively arranged above the table top 70. One end of the second arm 50 is rotatably connected to the base 60, the rotary adapter 40 is rotatably connected to the other end of the second arm 50, one end of the first arm 30 is rotatably connected to the rotary adapter 40, the support column 20 is fixedly connected to the other end of the first arm 30, the pressing module 10 penetrates through the support column 20, and the gyroscope 90 is arranged on the pressing module 10.

[0021] In this embodiment, motors for rotation are respectively provided on the pressing module 10, the support column 20, and the rotary adapter 40. When the optical machine assembly 100 needs to be shaft-aligned, the optical machine assembly 100 is installed on the pressing module 10. According to the specifications of the optical machine assembly 100, the pressing module 10 is initially adjusted, and then the pressing module 10 is used to clamp the optical machine assembly 100 to preliminarily align the reference optical axis with the target; the optical machine assembly 100, the optical axis alignment device of the optoelectronic pod, and the motor are respectively powered on. If the optical machine assembly 100 is not straight, the corresponding compensation angle value in the roll direction is input using the control terminal 80 until the optical machine assembly 100 faces forward; observe the deviation distance between the reference axis and the target, and input the compensation values in the azimuth direction and the pitch direction using the control terminal 80 until the target is aligned; during shaft alignment, due to the jitter caused by the environment, the induction of the gyroscope 90 is fed back to control the control terminal 80 to drive the motor to rotate by an angle to compensate for the offset caused by the jitter, so as to keep the optical machine assembly 100 stable, effectively improving the convenience, accuracy, and efficiency of the optical axis alignment of the optical machine assembly 100. Universal rotation is achieved through two dimensions. One dimension is the azimuth, pitch, and roll of the optical machine assembly 100, and the other dimension is the spatial azimuth, pitch, and roll of the optical machine assembly 100, enabling it to match the shaft alignment applications of various pods and various environments in the current market.

[0022] Further, the pressing module 10 includes an adjusting shaft rod 15 and two sets of pressing units. The adjusting shaft rod 15 is fixedly connected to the support column 20 and penetrates through the support column 20, and the two ends of the adjusting shaft rod 15 are respectively provided with the pressing units.

[0023] Further, each pressing unit includes an optical machine pressing rod 11, a spring 12, a support plate 13, and a pin 14. The adjusting shaft rod 15 penetrates through the support plate 13, the optical machine pressing rod 11 is slidably connected to the support plate 13, the two ends of the spring 12 are respectively connected to the optical machine pressing rod 11 and the support plate 13, and the spring 12 surrounds the outer side wall of the optical machine pressing rod 11. The pin 14 penetrates through the support plate 13 and is inserted into the adjusting shaft rod 15.

[0024] In this embodiment, a motor is provided on the optical machine pressing rod 11. When the optical machine assembly 100 needs to be shaft-aligned, the optical machine assembly 100 is installed on the pressing module 10. According to the specifications of the optical machine assembly 100, the distance between the two support plates 13 is initially adjusted, and the support plate 13 is fixed using the pin 14. Under the action of the spring 12, the optical machine pressing rod 11 is compressed. The optical machine assembly 100 is placed between the two optical machine pressing rods 11. After the optical machine pressing rod 11 is released, the optical machine assembly 100 is clamped. Under the action of the motor, the posture of the optical machine assembly 100 can be stably maintained. At the same time, the control terminal 80 is used to control the motor, and a controllable angle rotation can be completed in the pitch direction.

[0025] Furthermore, the support column 20 includes an upper support block 21, a first damping bearing 22, a shaft rod 23, and a lower support block 24. The lower support block 24 is fixedly connected to the first support arm 30. The first damping bearing 22 is fixedly connected to the lower support block 24. The upper support block 21 is rotatably connected to the lower support block 24. The shaft rod 23 is rotatably connected to the first damping bearing 22 and respectively penetrates through the first damping bearing 22 and the upper support block 21. The adjustment shaft rod 15 penetrates through the upper support block 21.

[0026] In this embodiment, when it is necessary to manually compensate for the rotation angle of the pressing module 10 in the pitching direction, the upper support block 21 is rotated manually. The angle compensated in the pitching direction can be changed by adjusting the size of the upper support block 21 according to requirements. After rotating to the required angle, the force is stopped, and it can be fixed at this angle under the action of the first damping bearing 22. The first support arm 30 is made of a metal rigid material. The first support arm 30 is connected to the support column 20 by a motor. Its working principle is that under the control of the control terminal 80, the motor rotates in the azimuth direction according to the set angle value, driving the support column 20, the pressing module 10, and the optical machine assembly 100 to rotate in the azimuth direction.

[0027] Furthermore, the rotary adapter 40 includes an adapter section 41, an adapter head 42, and a second damping bearing 43. The adapter section 41 is rotatably connected to the second support arm 50 and is located at one end of the second support arm 50 away from the base 60. The adapter head 42 is provided on the adapter section 41. The second damping bearing 43 is fixedly connected to the first support arm 30. The adapter head 42 is rotatably connected to the second damping bearing 43.

[0028] In this embodiment, a motor is provided in the rotary adapter 40. The second arm 50 is made of a rigid metal material. The second arm 50 can rotate relative to the base 60 and the first arm 30 respectively. When it is necessary to adjust the spatial orientation and rotate, manually rotate the second arm 50 to achieve a 360° rotation of the spatial orientation; when it is necessary to adjust the spatial height of the optical engine assembly 100, manually adjust the first arm 30 to rotate in the pitching direction, and the adjustment can exceed 180°; when it is necessary to rotate in the rolling direction, input the rotation angle at the control terminal 80, control the motor in the rotary adapter 40 to rotate, drive the first arm 30, the support column 20, and the pressing module 10 to rotate in the rolling direction, so as to control the rotation of the optical engine assembly 100 in the rolling direction; when it is necessary to adjust the position of the whole in the spatial orientation, manually move the first arm 30 to drive the rotary adapter 40 to rotate in the spatial orientation relative to the second arm 50, so as to drive the optical engine assembly 100 to move in the spatial orientation direction. The gyroscope 90 feeds back the attitude data of the whole device and feeds it back to the control terminal 80. The control terminal 80 outputs corresponding instructions according to the fed-back attitude data, transmits them to each motor, and drives each motor to rotate to compensate for jitter. When the motor rotates to the corresponding angle, it stops rotating.

[0029] The above-disclosed are only one or more preferred embodiments of the present invention. Of course, the scope of the rights of the present invention cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the invention.

Claims

1. An optical axis adjustment device for an optoelectronic pod, characterized in that: It includes a clamping module, a support column, a first arm, a rotating adapter, a second arm, a base, a table and a control terminal. The base and the control terminal are respectively arranged above the table. One end of the second arm is rotatably connected to the base, the rotating adapter is rotatably connected to the other end of the second arm, one end of the first arm is rotatably connected to the rotating adapter, the support column is fixedly connected to the other end of the first arm, and the clamping module passes through the support column.

2. The optical axis adjustment device of the optoelectronic pod according to claim 1, characterized in that: The optoelectronic pod optical axis adjustment device further comprises a gyroscope, and the pressing module is provided with the gyroscope.

3. The optical axis adjustment device of the optoelectronic pod according to claim 1, characterized in that: The clamping module comprises an adjusting shaft and two groups of clamping units. The adjusting shaft is fixedly connected to the supporting column and passes through the supporting column. The clamping units are respectively arranged at both ends of the adjusting shaft.

4. The optical axis adjustment device of the optoelectronic pod as claimed in claim 3, characterized in that: The clamping unit includes an optical mechanical pressure rod, a spring, a support plate and a pin. The adjusting shaft rod passes through the support plate. The optical mechanical pressure rod is slidably connected to the support plate. The two ends of the spring are respectively connected to the optical mechanical pressure rod and the support plate, and the spring surrounds the outer side wall of the optical mechanical pressure rod. The pin passes through the support plate and is inserted into the adjusting shaft rod.

5. The optical axis adjustment device of the optoelectronic pod as claimed in claim 3, characterized in that: The support column includes an upper support block, a first damping bearing, a shaft rod and a lower support block, the lower support block is fixedly connected to the first support arm, the first damping bearing is fixedly connected to the lower support block, the upper support block is rotatably connected to the lower support block, the shaft rod is rotatably connected to the first damping bearing and passes through the first damping bearing and the upper support block respectively, and the adjustment shaft rod passes through the upper support block.

6. The optical axis adjustment device of the optoelectronic pod according to claim 1, characterized in that: The rotating adapter includes an adapter joint, an adapter joint, and a second damping bearing. The adapter joint is rotatably connected to the second arm and is located at an end of the second arm away from the base. The adapter joint is provided on the adapter joint. The second damping bearing is fixedly connected to the first arm, and the adapter joint is rotatably connected to the second damping bearing.

Images