阅读说明：本技术 一种悬臂式双轴仿真测试转台结构 (Cantilever type double-shaft simulation test turntable structure ) 是由 廖瑞珍 张长清 王海龙 于 2019-09-01 设计创作，主要内容包括：本发明公开了一种悬臂式双轴仿真测试转台结构,包括外环底座组件、内环U型框架组件、目标模拟器框架组件及悬臂式支架组件,悬臂式支架组件与底座紧固相连,其结构特征在于外环方位轴线、内环俯仰轴线、导引头中心轴线正交于直径φ0.5mm球内。本悬臂式双轴仿真测试转台结构主要用于光电导引头批量化整机性能测试,光电导引头安装固定于悬臂支架组件的导引头工装上,外环方位轴系和内环俯仰轴系带动目标模拟器在有限角度范围内进行匀速运动、点位运动、正弦运动及其它特殊仿真运动方式。该悬臂式转台结构简单、测试操作便捷、测试效率及测试精度高,满足光电导引头大批量整机性能测试需求。(The invention discloses a cantilever type double-shaft simulation test turntable structure which comprises an outer ring base assembly, an inner ring U-shaped frame assembly, a target simulator frame assembly and a cantilever type support assembly, wherein the cantilever type support assembly is fixedly connected with a base, and the cantilever type test turntable structure is characterized in that an outer ring azimuth axis, an inner ring pitching axis and a guide head central axis are orthogonal to a ball with the diameter phi of 0.5 mm. The cantilever type double-shaft simulation test turntable structure is mainly used for testing the performance of a photoelectric seeker in batch, the photoelectric seeker is mounted and fixed on seeker tools of a cantilever support assembly, and an outer ring azimuth shaft system and an inner ring pitching shaft system drive a target simulator to perform uniform motion, point position motion, sinusoidal motion and other special simulation motion modes within a limited angle range. The cantilever type rotary table is simple in structure, convenient and fast in test operation, high in test efficiency and test precision, and capable of meeting the performance test requirements of a large-batch complete machine of a photoconductive leader.)

1. A cantilever type double-shaft simulation test turntable structure comprises an outer ring base assembly (30), an inner ring U-shaped frame assembly (20), a target simulator frame assembly (10) and a cantilever type bracket assembly (40), and is characterized in that the cantilever type bracket assembly (40) is fixedly connected with a polygonal base frame (3), and an outer ring azimuth axis Z, an inner ring pitching axis Y and a seeker central axis X are orthogonal to a small ball with the diameter phi of 0.5 mm.

2. The cantilever-type dual-axis simulation test turntable structure of claim 1, wherein: the cantilever type support assembly (40) comprises a cantilever support (8), a mounting plate (9), a mounting plate adjusting gasket (12) and a guide head tool (13).

3. The cantilever-type dual-axis simulation test turntable structure of claim 2, wherein: the cantilever support (8) is in a Q235 welding hollow cantilever structure shape and is provided with a reinforcing rib (39), and the L-shaped surface (41) and the outer ring base boss are fixedly positioned through an inner hexagonal cylindrical head screw (6) and a cylindrical pin (5).

4. The cantilever-type dual-axis simulation test turntable structure of claim 1, wherein: the center of the seeker is positioned at the intersection point O of the outer ring azimuth axis Z and the pitching axis Y by the seeker tool (13) and is intersected in a small ball with the diameter phi of 0.5 mm.

5. The cantilever-type dual-axis simulation test turntable structure of claim 1, wherein: the rotating angle range of the inner ring U-shaped frame assembly (20) around the outer ring azimuth axis Z is-90 degrees to +90 degrees, and the rotating angle range of the target simulator frame assembly (10) around the inner ring pitch axis Y is-50 degrees to +50 degrees.

Technical Field

The invention belongs to the field of photoelectric guidance simulation test equipment, and relates to a cantilever type double-shaft simulation test turntable structure which is particularly used for the complete machine performance test of a photoelectric seeker and the laboratory simulation and manufacture of related products.

Background

The whole performance test of the existing photoelectric seeker is mainly to test on a five-axis simulation test turntable, the seeker is firstly installed on a pitching frame of three axes in the five-axis simulation test turntable during testing, the inner three axes are locked at a zero position through a turntable control cabinet, a target simulator is installed on two outer axes of the five-axis simulation test turntable, after a light path is calibrated by a theodolite, the two outer axes drive the target simulator to perform uniform motion, point position motion, sine motion and other special motion modes through the turntable control cabinet, and therefore the performance of the photoelectric seeker for tracking a target is tested. The conventional five-axis simulation test turntable is complex in structure, large in size, complex in control system, low in control precision, and high in equipment price and maintenance cost. Meanwhile, the rotational inertia of the motion axis of the five-axis simulation test turntable is large, so that the overshoot problem is prominent and the stabilization time is long in the test use process, so that the test efficiency is low, and the requirement of the whole performance test of a large quantity of guide heads cannot be met.

Therefore, a simulation test turntable structure which has a simple structure and high test efficiency and can be suitable for the performance test of a large-batch photoconductive leader complete machine is needed.

Disclosure of Invention

Aiming at the problems of the existing photoconductive leader test equipment, the invention aims to provide a cantilever type double-shaft simulation test turntable structure which can meet the requirements of high-efficiency and batch overall performance test of a photoelectric leader, and has the advantages of simple structure, small weight and volume of test equipment and low cost of the test equipment.

In order to achieve the purpose, the invention provides the following technical scheme to realize the purpose:

a cantilever type double-shaft simulation test turntable structure comprises an outer ring base assembly, an inner ring U-shaped frame assembly, a target simulator frame assembly and a cantilever type support assembly;

the outer ring base assembly comprises a polygonal base frame, an outer ring first bearing assembly, an outer ring second bearing assembly, an outer ring driving motor, an outer ring main shaft and a leveling sizing block, wherein an inner ring of the outer ring first bearing assembly and an inner ring of the second bearing assembly are respectively fastened with the upper end and the lower end of the main shaft;

the inner ring U-shaped frame assembly comprises an inner ring U-shaped frame, an inner ring first shaft, an inner ring second shaft, an inner ring first bearing assembly, an inner ring second bearing assembly, an inner ring first driving motor, an inner ring second driving motor, an inner ring angle encoder, an outer ring limiting collision block, an inner ring first limiting stop block, an inner ring second limiting stop block, an inner ring first limiting collision block and an inner ring second limiting collision block, wherein the inner rings of the inner ring first bearing assembly and the inner ring second bearing assembly are respectively fastened with the inner ring first shaft and the inner ring second shaft, the outer rings of the inner ring first bearing assembly and the inner ring second bearing assembly are fixed at two ends of the inner ring U-shaped frame, the inner ring first driving motor and the inner ring second driving motor are respectively fastened with the inner ring first shaft and the inner ring second shaft through expansion sleeves, the inner ring angle encoder is mounted at the end of the inner ring first shaft, the outer ring limiting collision block is fastened with the U-shaped frame, and the inner ring first limiting, The inner ring second shaft, the inner ring first limit stop and the inner ring second limit stop are respectively fastened at the left end and the right end of the inner ring U-shaped frame to form an inner ring pitching axis Y;

the target simulator frame assembly comprises a target simulator U-shaped frame, a target simulator socket and a balancing weight, the left end and the right end of the target simulator U-shaped frame are fixedly connected with an inner ring first shaft and an inner ring second shaft respectively, and the target simulator is installed on the target simulator U-shaped frame;

the cantilever type bracket assembly comprises a cantilever bracket, a mounting plate adjusting gasket, a guide head tool, a guide head and a guide head socket, wherein the cantilever bracket is fixedly connected with the polygonal base frame, the mounting plate is fastened with the cantilever bracket, the mounting plate adjusting gasket is clamped between the mounting plate and the cantilever bracket, and the guide head tool is fastened on the mounting plate to form a central axis X of the guide head;

furthermore, the cantilever type bracket assembly is fastened on the polygonal base frame to provide a precise installation positioning reference for the seeker;

further, the cantilever support is of a Q235 welded cantilever hollow structure and is provided with a reinforcing rib feature;

furthermore, the outer ring azimuth axis Z, the inner ring pitch axis Y and the central axis X of the seeker are orthogonal to the inside of a small ball with the diameter phi of 0.5 mm;

furthermore, the rotation angle range of the inner ring U-shaped frame assembly around the outer ring azimuth axis Z is-90 degrees to +90 degrees, and the rotation angle range of the target simulator frame assembly around the inner ring pitch axis Y is-50 degrees to +50 degrees.

Compared with the existing photoconductive leader test equipment, the invention has the beneficial effects that:

1. the cantilever support is fixedly connected with the base integrally, so that an accurate installation reference is provided for the photoconductive leader, the center of the leader can be ensured to be superposed with the rotation center of the rotary table only by installing the leader on a leader tool, the function of locking the zero position of the inner three shafts in the original five-shaft simulation test rotary table is replaced, the structure is simple, the equipment weight and the occupied area are small, and the equipment cost and the maintenance cost are low;

2. the rotary table moving shaft has small moment of inertia, short stabilization time, convenient and fast personnel operation and high test efficiency, and effectively solves the problem that the existing test equipment can not meet the requirement of the performance test of a photoconductive leader batch whole machine;

3. the control system is simple, the control precision is high, the performance test accuracy of the photoconductive leader is improved, and the precision error of the photoelectric leader is reduced;

4. the requirements of testing the performance of the whole photoelectric seeker with different models can be met only by replacing the seeker tool.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a cross-sectional view of the outrigger of the present invention.

In the figure: 1-counterweight block, 2-outer ring limit collision block, 3-polygonal base frame, 4-leveling sizing block, 5-cylindrical pin, 6-inner hexagonal cylindrical head screw, 7-outer ring limit stop block, 8-cantilever bracket, 9-mounting plate, 10-target simulator frame component, 11-seeker socket, 12-mounting plate adjusting gasket, 13-seeker tool, 14-seeker, 15-target simulator socket, 16-target simulator U-shaped frame, 17-target simulator, 18-inner ring first bearing component, 19-inner ring first shaft, 20-inner ring U-shaped frame component, 21-inner ring first driving motor, 22-inner ring angle encoder, 23-inner ring first motor expansion sleeve, 24-inner ring first limit collision block, 25-inner ring first limit stop, 26-outer ring first bearing assembly, 27-outer ring main shaft, 28-outer ring angle encoder, 29-outer ring second bearing assembly, 30-outer ring base assembly, 31-outer ring driving motor, 32-inner ring U-shaped frame, 33-inner ring second limit stop, 34-inner ring second limit collision block, 35-inner ring second shaft, 36-inner ring second motor expansion sleeve, 37-inner ring second driving motor, 38-inner ring second bearing assembly, 39-reinforcing rib, 40-cantilever type bracket assembly and 41-L profile.

Detailed Description

The technical solution of the present invention is further described below with reference to the accompanying drawings.

Fig. 1 shows a cantilever-type dual-axis simulation test turntable, which includes an outer ring base assembly, an inner ring U-shaped frame assembly, a target simulator frame assembly, and a cantilever-type bracket assembly.

The outer ring base component 30 comprises a polygonal base frame 3, an outer ring limit stop 7, an outer ring first bearing component 26, an outer ring second bearing component 29, an outer ring driving motor 31, an outer ring main shaft 27, an outer ring angle encoder 28 and a leveling sizing block 4, wherein the inner ring of the outer ring first bearing component 26 and the inner ring of the second bearing component 29 are respectively fastened with the upper end and the lower end of the outer ring main shaft 27, the outer ring first bearing component 26 and the outer ring of the second bearing component 29 are fixed with the polygonal base frame 3, the outer ring driving motor 31 is fastened at the middle end of the outer ring main shaft 27 through an expansion sleeve, the outer ring angle encoder 28 is installed at the lower end of the outer ring main shaft 27, and;

the inner ring U-shaped frame assembly 20 comprises an inner ring U-shaped frame 32, an inner ring first shaft 19, an inner ring second shaft 35, an inner ring first bearing assembly 18, an inner ring second bearing assembly 36, an inner ring first driving motor 21, an inner ring second driving motor 37, an inner ring angle encoder 22, an outer ring limit collision block 2, an inner ring first limit stop 25, an inner ring second limit stop 33, an inner ring first limit collision block 24 and an inner ring second limit collision block 34, wherein the inner rings of the inner ring first bearing assembly 18 and the inner ring second bearing assembly 38 are respectively fastened with the inner ring first shaft 19 and the inner ring second shaft 35, the outer rings of the inner ring first bearing assembly 18 and the second bearing assembly 38 are fixed at two ends of the inner ring U-shaped frame 32, the inner ring first driving motor 21 and the inner ring second driving motor 37 are respectively fastened on the inner ring first shaft 19 and the inner ring second shaft 35 through the inner ring first motor expansion sleeve 23 and the inner ring, the inner ring angle encoder 22 is arranged at the shaft end of the inner ring first shaft 19, the outer ring limit collision block 2 is fastened on the inner ring U-shaped frame 32, the inner ring first limit collision block 24 and the inner ring second limit collision block 34 are fastened on the inner ring first shaft 19 and the inner ring second shaft 35 respectively, and the inner ring first limit stop 25 and the inner ring second limit stop 33 are fastened at the left end and the right end of the inner ring U-shaped frame 32 respectively to form an inner ring pitching axis Y;

the target simulator frame assembly 10 comprises a target simulator U-shaped frame 16, a target simulator 17, a target simulator socket 15 and a balancing weight 1, wherein the left end and the right end of the target simulator U-shaped frame 16 are fixedly connected with an inner ring first shaft 19 and an inner ring second shaft 35 respectively, and the target simulator 17 is installed on the target simulator U-shaped frame 16;

the cantilever type bracket assembly 40 comprises a cantilever bracket 8, a mounting plate 9, a mounting plate adjusting gasket 12, a guide head tool 13, a guide head 14 and a guide head socket 11, wherein the cantilever bracket 8 is fixedly connected with the polygonal base frame 3, the mounting plate 9 is fastened with the cantilever bracket 8, the mounting plate adjusting gasket 12 is clamped between the mounting plate 9 and the cantilever bracket 8, and the guide head tool is fastened on the mounting plate 9;

the inner ring U-shaped frame component 20 is fastened on an outer ring main shaft 27, can rotate around an outer ring azimuth rotating shaft Z, and limits the rotating angle range of an outer ring azimuth axis to be within-95 degrees to +95 degrees through the mechanical limiting action of the outer ring limit stop 7 and the outer ring limit collision block 2;

the target simulator frame assembly 10 is fixedly connected with the inner ring first shaft 19 and the inner ring second shaft 35 to form an inner ring pitching shaft system, and the rotating angle range of the target simulator frame assembly 10 around the inner ring pitching axis Y is limited to be within-55 degrees to +55 degrees through the mechanical limiting action of the inner ring first limit stop 25, the inner ring second limit stop 33, the inner ring first limit collision block 24 and the inner ring second limit collision block 34;

the polygonal base frame 3 is provided with an L-shaped boss feature, the L-shaped boss feature has a high-precision position relation with an azimuth rotation axis Z, and the lower end of the cantilever support 8 is fixedly positioned with the L-shaped boss of the polygonal base frame 3 through an L-shaped surface 41 and is fixedly connected with the L-shaped boss through an inner hexagonal cylindrical head screw 6 and a cylindrical pin 5;

the cantilever support 8 is a hollow structure of a Q235 welded cantilever and is provided with a reinforcing rib 39, so that the structural rigidity is strong and the stability is high;

when the seeker 14 is installed on the seeker tool 13, the center of the seeker 14 is positioned at the intersection point O of the outer ring azimuth axis Z and the inner ring pitch axis Y and is intersected in a small ball with the diameter phi of 0.5 mm;

FIG. 1 is an initial zero state of a turntable, wherein the axis of a target simulator is coaxial and collinear with the axis X of a seeker, and the three axes of the azimuth axis Z of an outer ring, the pitching axis Y of an inner ring and the axis X of the seeker are orthogonal and intersect in a small ball with the diameter phi of 0.5 mm;

the working principle of the invention is as follows: the photoelectric guide head is arranged and fixed on a guide head tool of the cantilever bracket assembly, and the outer ring azimuth axis and the inner ring pitching axis drive the target simulator to perform uniform motion, point position motion, sinusoidal motion and other special simulation motion modes within the angle range of-90 to +90 degrees of azimuth and-50 to +50 degrees of pitching respectively, so that the performance of the photoelectric guide head for tracking the target is tested.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, so as to facilitate the understanding of the main structural features and advantages of the present invention, but the present invention is not limited to the specific embodiments described above, and the technical features of the present invention should be considered as being modified within the scope of the present invention in a form rather than a substantial change within the technical scope of the present invention. The scope of the invention is defined by the appended claims.