Balancing system and balancing method for seeker light machine assembly

Abstract

The invention discloses a balancing system and a balancing method for a seeker light machine assembly. The balancing system comprises a balancing device of the seeker light machine assembly and two rotating shafts, the mounting position and the mounting mode of the rotating shafts are the same as the mounting position and the mounting mode of the seeker light machine in actual use, and the consistency of subsequent installation and adjustment is guaranteed. The trimming device can be used for placing a seeker light machine assembly provided with a rotating shaft so as to trim the seeker light machine assembly, the trimming device comprises a bottom plate, a bearing assembly, a bearing pressing plate and two trimming supports, and the trimming device is simple in structure, convenient to machine, low in cost and beneficial to batch production; therefore, based on the balancing system, the balancing operation is convenient and fast.

Description

Technical Field

[0001] The present application belongs to the field of mechanical technology, and in particular, relates to a balancing system and a balancing method for a seeker optical-mechanical assembly. Background Art

[0002] When the seeker optical-mechanical assembly is in use, the seeker's own servo platform may not respond quickly, so it is necessary to perform preliminary balancing on the optical-mechanical part before overall adjustment to balance the center of gravity of the optical-mechanical assembly. Currently, there is a lack of balancing devices that can achieve the above requirements, which affects the dynamic performance of the seeker optical-mechanical assembly and the subsequent overall adjustment effect. Summary of the invention

[0003] The embodiments of the present application provide a balancing system and a balancing method for a seeker optical-mechanical assembly, which are used to at least solve the problem in the related art that there is a lack of a balancing device for the seeker optical-mechanical assembly, which affects the dynamic performance of the seeker optical-mechanical assembly and the subsequent overall assembly and adjustment effect.

[0004] In a first aspect, an embodiment of the present application provides a balancing system for a seeker optical-mechanical assembly, the balancing system comprising: a balancing device for the seeker optical-mechanical assembly and two rotating shafts; The two rotating shafts are used to be installed on both sides of the first direction axis of the guide head optical-mechanical assembly, or installed on both sides of the second direction axis of the guide head optical-mechanical assembly, and the first direction axis and the second direction axis are perpendicular to each other; The balancing device is used to place the seeker optical-mechanical assembly on which the rotating shaft is installed to balance the seeker optical-mechanical assembly; The balancing device includes: a base plate, a bearing assembly, a bearing pressure plate and two balancing brackets; the two balancing brackets are respectively arranged on the base plate and located on both sides of the center line of the base plate, and the two balancing brackets are each at the same distance from the center line of the base plate; the bearing pressure plate is used to fix the bearing assembly on the balancing bracket.

[0005] In a second aspect, an embodiment of the present application provides a balancing method for a seeker optical-mechanical assembly, wherein the balancing method is applied to a seeker optical-mechanical assembly and a balancing system for a seeker optical-mechanical assembly as described in any embodiment of the first aspect; The balancing system comprises: a balancing device of the seeker optical-mechanical assembly and two rotating shafts; The front end of the seeker optical-mechanical assembly includes an optical lens group, and the rear end is provided with a mounting hole for mounting a counterweight block, and the mounting surface of the seeker optical-mechanical assembly is perpendicular to the first positioning surface and the second positioning surface thereof; The balancing method comprises: The two rotating shafts are respectively installed on both sides of the seeker optical-mechanical assembly along the first direction axis, and the two rotating shaft positioning surfaces are in contact with the second positioning surface of the seeker optical-mechanical assembly, and the rotating shaft mounting surface is in contact with the mounting surface of the seeker optical-mechanical assembly; the seeker optical-mechanical assembly with the rotating shaft installed is placed on the balancing device; the rotating shaft is controlled to drive the seeker optical-mechanical assembly to rotate on the balancing device, and a corresponding counterweight is installed at the rear end of the seeker optical-mechanical assembly, so that the seeker optical-mechanical assembly is in a horizontally balanced state and balanced in the pitch direction, and the center of gravity of the seeker optical-mechanical assembly after the pitch direction is balanced is located on a first plane, and the first plane is the plane where the first direction axis and the second direction axis are located; The rotating shaft is controlled again to drive the seeker optical-mechanical assembly to rotate on the balancing device, and a corresponding counterweight is installed at the rear end of the seeker optical-mechanical assembly to keep the seeker optical-mechanical assembly balanced in the vertical direction. The center of gravity of the seeker optical-mechanical assembly after vertical balancing is located on the first direction axis; Reinstall the two rotating shafts on both sides of the seeker optical-mechanical assembly along the second direction axis, with the two rotating shaft positioning surfaces in contact with the first positioning surface of the seeker optical-mechanical assembly, and the rotating shaft mounting surface in contact with the mounting surface of the seeker optical-mechanical assembly; place the seeker optical-mechanical assembly with the rotating shaft installed on the balancing device; control the rotating shaft to drive the seeker optical-mechanical assembly to rotate on the balancing device, and install a corresponding counterweight at the rear end of the seeker optical-mechanical assembly to balance the seeker optical-mechanical assembly in the heading direction. The center of gravity of the seeker optical-mechanical assembly after balancing in the heading direction is the intersection of the mounting surface of the seeker optical-mechanical assembly and the center line of the optical axis, so that the seeker optical-mechanical assembly maintains a balanced state at any position.

[0006] The balancing system and balancing method of the seeker optical-mechanical assembly in the embodiment of the present application, the balancing system includes a balancing device and two rotating shafts of the seeker optical-mechanical assembly, the installation position and installation method of the rotating shafts are the same as the installation position and installation method when the seeker optical-mechanical assembly is actually used, so as to ensure the consistency of subsequent installation and adjustment; the balancing device can place the seeker optical-mechanical assembly with the rotating shaft installed to balance the seeker optical-mechanical assembly, the balancing device includes a base plate, a bearing assembly, a bearing pressure plate and two balancing brackets, the balancing device has a simple structure, is easy to process, has low cost, and is conducive to mass production, so that the balancing operation can be convenient and fast based on the balancing system. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0008] Figure 1A is a simplified three-dimensional diagram of an exemplary seeker optical-mechanical assembly structure; Figure 1B is a simplified front view of an exemplary seeker optical-mechanical assembly structure; Figure 1C is a simplified top view of an exemplary seeker optical-mechanical assembly structure; Figure 1D is a simplified left view of an exemplary seeker optical-mechanical assembly structure; Figure 1E is a simplified right side view of an exemplary seeker optical-mechanical assembly structure; Figure 2 It is a structural schematic diagram of a rotating shaft of a balancing system of a seeker optical-mechanical assembly provided in an embodiment of the present application; Figure 3 It is a structural schematic diagram of a balancing device in a balancing system of a seeker optical-mechanical assembly provided in an embodiment of the present application; Figure 4 It is a flow chart of a method for balancing a seeker optical-mechanical assembly provided in an embodiment of the present application; Figure 5 It is a flow chart of another method for balancing the optical-mechanical assembly of a seeker provided in an embodiment of the present application. DETAILED DESCRIPTION

[0009] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0010] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0011] When the seeker optical-mechanical assembly is in use, the seeker's own servo platform may not respond quickly, so it is necessary to perform preliminary balancing on the optical-mechanical part before overall adjustment to balance the center of gravity of the optical-mechanical assembly. Currently, there is a lack of balancing devices that can achieve the above requirements, which affects the dynamic performance of the seeker optical-mechanical assembly and the subsequent overall adjustment effect.

[0012] In order to solve the problems of the related art, an embodiment of the present application provides a balancing system and a balancing method for an optical-mechanical assembly of a seeker.

[0013] refer to Figure 1A , Figure 1B , Figure 1C , Figure 1D and Figure 1E , which are respectively a simplified stereoscopic view, a front view, a top view, a left view and a right view corresponding to the exemplary optical-mechanical assembly of the guide head.

[0014] It should be noted that the front end of the seeker optical-mechanical assembly includes an optical lens group. Due to the high density of the optical-mechanical assembly lenses, the center of gravity will shift forward, so the optical machine is vertically downward in the initial state. Figure 1A As shown, the rear end of the seeker optical-mechanical assembly includes a detector and a counterweight mounting hole is reserved on the detector, that is, the rear end of the seeker optical-mechanical assembly is provided with a mounting hole for mounting the counterweight, so as to improve its center of gravity position by adding counterweights at the rear end and on the left and right sides of the optical machine.

[0015] Specifically, Figure 1A , Figure 1B , Figure 1C , Figure 1D and Figure 1E As shown, the two sides of the main frame of the seeker optical-mechanical assembly are respectively the first positioning surface (a) and the second positioning surface (b), and the mounting surface of the seeker optical-mechanical assembly is perpendicular to the two positioning surfaces. The mounting surface is provided with positioning pin holes and mounting holes, and the mounting surface is connected to the main frame of the seeker during the overall assembly.

[0016] Therefore, an embodiment of the present application provides a balancing system for a seeker optical-mechanical assembly, including a balancing device and two rotating shafts of the seeker optical-mechanical assembly, wherein the installation position and installation method of the rotating shafts are the same as the installation position and installation method of the seeker optical-mechanical assembly when it is actually used, thereby ensuring the consistency of subsequent installation and adjustment; the balancing device can place the seeker optical-mechanical assembly with the rotating shaft installed to balance the seeker optical-mechanical assembly, and the balancing device includes a base plate, a bearing assembly, a bearing pressure plate and two balancing brackets. The balancing device has a simple structure, is easy to process, has low cost, and is conducive to mass production, so that convenient and quick balancing operations can be achieved based on the balancing system.

[0017] The balancing system of the seeker optical-mechanical assembly provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in combination with the accompanying drawings.

[0018] First, the two rotating shaft structures in the trim system of the embodiment of the present application and their specific configuration in the trim system are described in detail. The two rotating shafts are used to be installed along the first direction axis (i.e. Figure 1A On both sides of the Y axis), or, installed along the second direction axis (i.e. Figure 1A On both sides of the central Z axis), the first direction axis and the second direction axis are perpendicular to each other.

[0019] It should be noted that the two rotating shafts are installed in the same relative position on the optical-mechanical assembly of the guide head, and the rotation axis center lines of the two rotating shafts after installation are the same straight line.

[0020] In addition, in some embodiments, the rotating shaft is also used to drive the seeker optical-mechanical assembly to rotate on the balancing device by cooperating with the bearing assembly of the balancing device to balance the seeker optical-mechanical assembly.

[0021] It should be noted that the two rotating shafts in the balancing system have exactly the same structure. Figure 2 The schematic diagram of the rotating shaft structure provided by the embodiment of the present application is shown as follows: Figure 2 As shown, the rotating shaft includes a shaft end and a mounting end.

[0022] The shaft end is a hollow shaft, and the shaft is provided with axially symmetrical grooves, that is, grooves are opened on both sides of the axis to balance the center of gravity of the shaft and facilitate the routing of the optical machine of the guide head.

[0023] Optionally, the size of the groove is calculated when the center of gravity of the shaft is determined to be located on the axis of rotation. In other words, the center of gravity of the shaft can be measured and the size of the groove can be determined by calculation so that the center of gravity of the shaft is on the axis of rotation.

[0024] Furthermore, the mounting end includes two mutually perpendicular mounting surfaces and positioning surfaces, and the center of the rotating shaft is located on the mounting surface of the rotating shaft, that is, the mounting surface is the center surface of the rotating shaft. Specifically, the positioning surface of the rotating shaft is used to contact the first positioning surface or the second positioning surface of the guide head optical-mechanical assembly during assembly to limit the installation displacement of the guide head optical-mechanical assembly along the axial direction of the rotating shaft, thereby ensuring the installation accuracy of the guide head along the axial position of the rotating shaft; a positioning pin is provided on the mounting surface of the rotating shaft, which is used to position and contact with the mounting surface of the guide head optical-mechanical assembly, that is, the mounting surface of the rotating shaft is positioned with the mounting surface of the guide head through the pin, so that when the guide head optical-mechanical assembly is trimmed, the rotation axis (Y axis, Z axis) of the guide head optical-mechanical assembly along the first direction or the second direction is determined to be coaxial with the rotation axis of the rotating shaft, so that the center of gravity of the guide head optical-mechanical assembly after trimming and debugging is consistent with the center of gravity position required for actual installation and use.

[0025] In addition, it should be understood that when machining a rotating shaft, it is necessary to ensure that the circular runout of the shaft end surface and the verticality and flatness between the two mounting surfaces meet the application requirements and assembly conditions during machining.

[0026] In this way, the center of gravity of the shaft structure is on its rotation axis, ensuring that the shaft is in a balanced state when rotating during the balancing process, thereby ensuring the accuracy of the balancing; the shaft has a mounting surface, a positioning surface and a pin hole, ensuring that the two shafts are in the same relative position when installed on the optical machine and that their rotation axes are on the same straight line.

[0027] Next, the structure of the trim device in the trim system of the embodiment of the present application and its specific configuration in the trim system are described in detail. The trim device is used to place the seeker optical-mechanical assembly equipped with the rotating shaft to trim the seeker optical-mechanical assembly. It can be understood that when the optical-mechanical assembly equipped with the rotating shaft is placed on the trim device, the optical-mechanical part can rotate freely on the entire trim device.

[0028] Figure 3 FIG. 1 is a schematic diagram showing the structure of the balancing device provided in an embodiment of the present application. Figure 3 As shown, the balancing device includes: a base plate, a bearing assembly, a bearing washer, a bearing pressure plate and two balancing brackets, wherein the bearing assembly includes an assembled bearing and a bearing shaft.

[0029] In some embodiments, two balancing brackets are respectively disposed on the base plate and located on both sides of the center line of the base plate, and the two balancing brackets are each at the same distance from the center line of the base plate.

[0030] Optional, such as Figure 3As shown, both the base plate and the trim bracket are provided with positioning surfaces. The surface of the base plate close to the trim bracket (i.e., the upper surface of the base plate) is perpendicular to the base plate positioning surface, the trim bracket positioning surface is perpendicular to its own bottom, and the trim bracket positioning surface fits the base plate positioning surface. In this way, based on the positioning surface, the installation accuracy between the two trim brackets and the base plate can be guaranteed, that is, after the two trim brackets are assembled, their respective positions relative to the base plate are the same, thereby ensuring that the axis of the optical-mechanical assembly does not deviate during the rotation process and the position of the rotation axis centerline remains unchanged.

[0031] Optionally, the distance between the trim bracket and the centerline of the base plate is determined based on the size of the seeker optical-mechanical assembly.

[0032] Optionally, holes are provided on the bottom plate for adjusting the distance between the two trim brackets to meet the trim requirements of seeker optical systems of different sizes.

[0033] In this way, by changing the size and type of the rotating shaft and adjusting the distance between the brackets, the balancing work of the guide head optical machine components of different sizes or other types of optical systems can be completed, that is, the balancing device of this embodiment can be applied to the balancing work of the guide head optical machines of different sizes.

[0034] In some embodiments, the bearing pressure plate is used to fix the bearing assembly on the balancing bracket. In this way, after the four bearings are matched with the bearing shaft, they are fixed on the balancing bracket through the bearing pressure plate, which can ensure that the bearings do not jump during the balancing process.

[0035] Optionally, the first end of the bearing pressure plate is in contact with the bearing shaft, and the second end of the bearing pressure plate restricts the bearing in the bearing pressure plate groove via a bearing washer to keep the bearing free of axial movement.

[0036] Optionally, the structure above the bearing pressure plate is higher than the bearing to block the axial direction of the rotating shaft, thereby preventing the rotating shaft from escaping from the balancing device during the balancing process.

[0037] Optionally, a bracket groove is provided on one end of each trim bracket away from the base plate, and the bearing assembly is fixed in the bracket groove. That is, a groove can be opened above the trim bracket for placing the bearing assembly.

[0038] Therefore, the balancing system of the embodiment of the present application has a simple and compact structure, low cost, easy operation, and good maintainability. It effectively solves the initial balancing work during the installation and adjustment of the guide head, and the various components are easy to disassemble and assemble, the device is simple to manufacture and process, and the operation is convenient and fast; the center of gravity of the rotating shaft is designed to be located on the axis of rotation, which effectively ensures the rotation consistency during the balancing process; the rotating shaft contacts the optical-mechanical assembly and is positioned by pins to ensure that the two shaft axes are in the same straight line, so that the balancing and debugging process of the guide head optical-mechanical assembly is consistent with the actual installation and use process; the positioning surface between the balancing bracket and the base plate ensures the installation accuracy, ensuring that no offset occurs during the rotation of the optical machine and the position of the rotation axis centerline remains stationary.

[0039] In addition, by replacing the rotating shaft with a different installation structure, the balancing system of this embodiment can also be used for balancing other optical systems, and has broad application prospects in military and civilian fields such as security monitoring, night vision navigation, and small airborne optoelectronic systems.

[0040] Furthermore, the present application also provides a method for balancing a seeker optical-mechanical assembly. It should be noted that the method for balancing a seeker optical-mechanical assembly can be applied to a seeker optical-mechanical assembly and a balancing system for a seeker optical-mechanical assembly as in any of the above embodiments.

[0041] Specifically, the balancing system includes: a balancing device of the seeker optical-mechanical assembly and two rotating shafts; the front end of the seeker optical-mechanical assembly includes an optical lens group, and the rear end is provided with a mounting hole for installing a counterweight block, and the mounting surface of the seeker optical-mechanical assembly is perpendicular to its first positioning surface and second positioning surface.

[0042] Figure 4 FIG. 1 is a flow chart showing a method for balancing a seeker optical-mechanical assembly according to an embodiment of the present application. Figure 4 As shown, the balancing method of the seeker optical-mechanical assembly may specifically include the following steps: S401, respectively installing two rotating shafts on both sides of the seeker optical-mechanical assembly along the first direction axis, and the two rotating shaft positioning surfaces are in contact with the second positioning surface of the seeker optical-mechanical assembly, and the rotating shaft mounting surface is in contact with the mounting surface of the seeker optical-mechanical assembly; placing the seeker optical-mechanical assembly with the rotating shaft installed on the balancing device; controlling the rotating shaft to drive the seeker optical-mechanical assembly to rotate on the balancing device, and installing a corresponding counterweight block at the rear end of the seeker optical-mechanical assembly, so that the seeker optical-mechanical assembly is in a horizontally balanced state and balanced in the pitch direction, and the center of gravity of the seeker optical-mechanical assembly after the pitch direction is balanced is located on a first plane, and the first plane is the plane where the first direction axis and the second direction axis are located; S402, controlling the rotating shaft again to drive the seeker optical-mechanical assembly to rotate on the balancing device, and installing a corresponding counterweight block at the rear end of the seeker optical-mechanical assembly to keep the seeker optical-mechanical assembly balanced in the vertical direction, and the center of gravity of the seeker optical-mechanical assembly after vertical balancing is located on the first direction axis; S403, reinstall the two rotating shafts on both sides of the seeker optical-mechanical assembly along the second direction axis, and the two rotating shaft positioning surfaces are in contact with the first positioning surface of the seeker optical-mechanical assembly, and the rotating shaft mounting surface is in contact with the mounting surface of the seeker optical-mechanical assembly; place the seeker optical-mechanical assembly installed with the rotating shaft on the balancing device; control the rotating shaft to drive the seeker optical-mechanical assembly to rotate on the balancing device, and install a corresponding counterweight at the rear end of the seeker optical-mechanical assembly to balance the seeker optical-mechanical assembly in the heading direction. The center of gravity of the seeker optical-mechanical assembly after balancing in the heading direction is the intersection of the mounting surface of the seeker optical-mechanical assembly and the center line of the optical axis, so that the seeker optical-mechanical assembly maintains a balanced state at any position.

[0043] It should be noted that, before S401, the center of gravity of the optical machine part can be measured. Therefore, in the above steps S401 to S403, the center of gravity of the optical machine in the initial state is located at the front upper part of the overall structure for balancing.

[0044] In addition, the present application also provides another method for balancing the optical-mechanical assembly of a seeker.

[0045] Figure 5 FIG. 2 is a flow chart showing another method for balancing the optical-mechanical assembly of a seeker according to an embodiment of the present application. Figure 5 As shown, another method for balancing the optical-mechanical assembly of a seeker may specifically include the following steps: In step (a), first perform the pitch direction (front and back direction) balancing, install the shaft on the left and right sides of the optical machine (along the Y-axis direction), the two shaft positioning surfaces are in contact with the optical machine positioning surface (b), and the shaft mounting surface is in contact with the optical machine mounting surface. Add a counterweight block to the rear end of the optical machine to make the optical machine in a horizontal balance state, that is, the pitch direction balancing is completed, and the center of gravity of the optical machine is located above the YOZ plane (optical machine mounting surface).

[0046] Furthermore, in step (b), a counterweight is added to the rear end of the optical machine so that it can maintain vertical balance. At this time, the center of gravity of the optical machine is located on the Y axis.

[0047] Furthermore, in step (c), the shaft is installed on the upper and lower sides of the optical machine (along the Z-axis direction), the two shaft positioning surfaces are in contact with the optical machine positioning surface (a), and the shaft mounting surface is in contact with the optical machine mounting surface. A counterweight is added to the rear end of the optical machine to make the optical machine in a horizontal balance state, that is, the heading direction trimming is completed. The center of gravity of the optical machine after trimming is at the intersection O of the optical machine mounting surface and the center line of the optical axis, so the optical machine can maintain a balanced state at any position.

[0048] Therefore, the balancing method of the seeker optical-mechanical assembly in the embodiment of the present application utilizes a balancing system to install rotating shafts in the left and right directions and the up and down directions of the optical machine respectively, and by adding counterweights at the rear end and left and right sides of the optical machine, the balancing of the seeker optical machine in the three directions of pitch, heading and roll can be simply and quickly achieved, so that its center of gravity is at a specified position, that is, the center of gravity of the optical machine after balancing is the intersection O of the mounting end face of the optical machine and the center line of the optical axis, thereby improving its dynamic performance and facilitating subsequent overall assembly and adjustment.

[0049] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0050] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0051] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0053] The term “plurality” used in this application refers to two or more (including two).

[0054] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0055] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.

[0056] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A balancing system for a seeker optical-mechanical assembly, characterized in that: The balancing system comprises: a balancing device of the seeker optical-mechanical assembly and two rotating shafts; The two rotating shafts are used to be installed on both sides of the first direction axis of the guide head optical-mechanical assembly, or installed on both sides of the second direction axis of the guide head optical-mechanical assembly, and the first direction axis and the second direction axis are perpendicular to each other; The balancing device is used to place the seeker optical-mechanical assembly on which the rotating shaft is installed to balance the seeker optical-mechanical assembly; The balancing device includes: a base plate, a bearing assembly, a bearing pressure plate and two balancing brackets; the two balancing brackets are respectively arranged on the base plate and located on both sides of the center line of the base plate, and the two balancing brackets are each at the same distance from the center line of the base plate; the bearing pressure plate is used to fix the bearing assembly on the balancing bracket.

2. The trim system according to claim 1, characterized in that: The rotating shaft is also used to drive the guide head optical-mechanical assembly to rotate on the balancing device by cooperating with the bearing assembly.

3. The trim system according to claim 1, characterized in that: The rotating shaft comprises a shaft end and a mounting end; The shaft end is a hollow shaft, and the shaft is provided with an axisymmetric groove, the size of which is calculated when the center of gravity of the shaft is determined to be located on the axis of rotation; The mounting end includes two mounting surfaces and a positioning surface that are perpendicular to each other, and the center of the rotating shaft is located on the rotating shaft mounting surface; The rotation shaft positioning surface is used to contact the first positioning surface or the second positioning surface of the guide head optical-mechanical assembly during assembly to limit the installation displacement of the guide head optical-mechanical assembly along the axis direction of the rotation shaft; A positioning pin is provided on the shaft mounting surface for positioning and contacting with the guide head optical-mechanical assembly mounting surface so as to ensure that the rotation axis of the guide head optical-mechanical assembly along the first direction or the second direction is coaxial with the shaft rotation axis when the guide head optical-mechanical assembly is trimmed.

4. The trim system according to claim 1, characterized in that: The two rotating shafts are installed at the same relative position on the optical-mechanical assembly of the guide head, and the rotation axis center lines of the two rotating shafts after installation are the same straight line.

5. The trim system according to claim 1, characterized in that: The balancing system further comprises a bearing washer; the bearing assembly comprises an assembled bearing and a bearing shaft; The first end of the bearing pressure plate is in contact with the bearing shaft, and the second end of the bearing pressure plate restricts the bearing in the bearing pressure plate groove through the bearing washer to keep the bearing free of axial movement.

6. The trim system according to claim 1, characterized in that: The base plate and the trim bracket are both provided with positioning surfaces; The surface of the base plate close to the trim bracket is perpendicular to the base plate positioning surface, and the trim bracket positioning surface is in contact with the base plate positioning surface.

7. The trim system according to claim 1, characterized in that: The distance between the trim bracket and the center line of the base plate is determined according to the size of the seeker optical-mechanical assembly.

8. The trim system according to claim 1, characterized in that: The bottom plate is provided with holes for adjusting the distance between the two balancing brackets.

9. The trim system according to claim 1, characterized in that: A bracket groove is provided on one end of each balancing bracket away from the base plate, and the bearing assembly is fixed in the bracket groove.

10. A method for balancing a seeker optical-mechanical assembly, characterized in that: The balancing method is applied to a seeker optical-mechanical assembly and a balancing system for a seeker optical-mechanical assembly as claimed in any one of claims 1 to 9; The balancing system comprises: a balancing device of the seeker optical-mechanical assembly and two rotating shafts; The front end of the seeker optical-mechanical assembly includes an optical lens group, and the rear end is provided with a mounting hole for mounting a counterweight block, and the mounting surface of the seeker optical-mechanical assembly is perpendicular to the first positioning surface and the second positioning surface thereof; The balancing method comprises: The two rotating shafts are respectively installed on both sides of the seeker optical-mechanical assembly along the first direction axis, and the two rotating shaft positioning surfaces are in contact with the second positioning surface of the seeker optical-mechanical assembly, and the rotating shaft mounting surface is in contact with the mounting surface of the seeker optical-mechanical assembly; the seeker optical-mechanical assembly with the rotating shaft installed is placed on the balancing device; the rotating shaft is controlled to drive the seeker optical-mechanical assembly to rotate on the balancing device, and a corresponding counterweight is installed at the rear end of the seeker optical-mechanical assembly, so that the seeker optical-mechanical assembly is in a horizontally balanced state and balanced in the pitch direction, and the center of gravity of the seeker optical-mechanical assembly after the pitch direction is balanced is located on a first plane, and the first plane is the plane where the first direction axis and the second direction axis are located; The rotating shaft is controlled again to drive the seeker optical-mechanical assembly to rotate on the balancing device, and a corresponding counterweight is installed at the rear end of the seeker optical-mechanical assembly to keep the seeker optical-mechanical assembly balanced in the vertical direction. The center of gravity of the seeker optical-mechanical assembly after vertical balancing is located on the first direction axis; Reinstall the two rotating shafts on both sides of the seeker optical-mechanical assembly along the second direction axis, with the two rotating shaft positioning surfaces in contact with the first positioning surface of the seeker optical-mechanical assembly, and the rotating shaft mounting surface in contact with the mounting surface of the seeker optical-mechanical assembly; place the seeker optical-mechanical assembly with the rotating shaft installed on the balancing device; control the rotating shaft to drive the seeker optical-mechanical assembly to rotate on the balancing device, and install a corresponding counterweight at the rear end of the seeker optical-mechanical assembly to balance the seeker optical-mechanical assembly in the heading direction. The center of gravity of the seeker optical-mechanical assembly after balancing in the heading direction is the intersection of the mounting surface of the seeker optical-mechanical assembly and the center line of the optical axis, so that the seeker optical-mechanical assembly maintains a balanced state at any position.

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