Testing and correcting device for rotary table

Abstract

The utility model discloses a test correction device for a rotary table, which comprises a correction bin, a bin door is mounted on the front side of the correction bin, an observation window is mounted on the bin door, a pair of fixing blocks is fixedly connected to the bin bottom of the correction bin, a plurality of mounting holes are formed in the top of each fixing block, and the mounting holes are communicated with the bin door. A mounting bolt is inserted into each mounting hole, a positioning assembly is mounted between the pair of fixing blocks, and a correction assembly is mounted at the top of the correction bin. According to the utility model, calibration result errors caused by shaking and displacement of the rotary table in the test calibration process can be avoided, adjustment can be carried out according to the size of the rotary table, the application range is wide, the rotary table can be separated from the outside, the accuracy and stability of the calibration result are prevented from being influenced by changes of the external environment, and the calibration accuracy is improved. Meanwhile, gas or liquid on the rotary table can be prevented from splashing and endangering personal safety, and related parts can be detached, so that maintenance and replacement are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of turntable calibration, in particular to a test and calibration device for a turntable. Background Art

[0002] A turntable is a device used to simulate the attitude and motion of a spacecraft or other object in space. It is usually driven by an electric motor and can rotate, tilt or make other movements of the object in a simulated environment according to pre-set parameters such as attitude, angular velocity and angular acceleration. Turntable calibration refers to the adjustment and inspection of the turntable to ensure that it can accurately simulate the required attitude and motion. The accuracy and stability of the turntable are crucial for spacecraft development and testing, so the turntable needs to be calibrated regularly.

[0003] At present, there are some turntable calibration devices on the market. For example, a calibration device for a two-degree-of-freedom turntable of an attitude computer is disclosed on the Chinese Patent Network, and its publication number is CN202221532U. The calibration device can achieve the connection between the standard equipment and the turntable under the premise of ensuring that the performance specifications of the two-degree-of-freedom rotating platform meet the requirements and the turntable is intact, thereby realizing the precise calibration of the turntable. However, some existing turntable calibration devices still have defects and deficiencies that need to be improved: (1) Existing calibration devices are often only suitable for turntables of fixed sizes and are difficult to adjust according to the size of the turntable. This limits the scope of application of the turntable calibration device, and the turntable is prone to shaking and displacement during the calibration process, which leads to errors in the test and calibration results of the turntable; (2) When the existing calibration device tests and calibrates the turntable, the turntable is usually placed in an open space. At this time, changes in the external environment (such as temperature, humidity, etc.) may affect the accuracy and stability of the calibration results, and the gas or liquid on the turntable may splash and endanger personal safety; (3) Most of the existing calibration devices have complex structures, and most of the related components are integrated structures that are difficult to disassemble, making it inconvenient to repair and replace. Therefore, in view of the above problems, the test and calibration device for a turntable provided by the utility model is of great significance. Utility Model Content

[0004] The utility model provides a test and correction device for a turntable, which can play a role of clamping and positioning through a positioning component, thereby effectively improving the stability of the turntable, so as to avoid the turntable from shaking and displacing during the test and correction process, thereby causing errors in the calibration result, and the positioning component can be adjusted according to the size of the turntable, so as to install and position turntables of different sizes, thereby greatly improving the application range of the entire test and correction device; the turntable in the correction chamber can be separated from the outside world by closing the chamber door, which not only avoids the change of the external environment affecting the accuracy and stability of the calibration result, but also prevents the gas or liquid on the turntable from splashing and endangering personal safety; the positioning frame can be fixed by the mutual cooperation between the positioning bolt, the thread groove and the threaded hole, and the entire positioning component can be taken out of the correction chamber together with the turntable by unscrewing the positioning bolt, so as to inspect and replace the turntable and related components, and the laser rangefinder and other equipment can be removed from the mounting plate by unscrewing the screws and nuts, so as to inspect and replace the related correction equipment, thereby solving the problems in the background technology.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a test and calibration device for a turntable, comprising a calibration bin, a bin door is installed on the front side of the calibration bin, an observation window is installed on the bin door, a pair of fixed blocks are fixedly connected to the bin bottom of the calibration bin, a plurality of mounting holes are opened on the top of each of the fixed blocks, a mounting bolt is inserted into each of the mounting holes, a positioning assembly is installed between the pair of fixed blocks, and a calibration assembly is installed on the bin top of the calibration bin;

[0007] The positioning assembly includes a positioning frame, both sides of which are provided with a plurality of threaded grooves matched with mounting bolts, a plurality of positioning plates are fixedly connected to the top of the positioning frame, a threaded hole is provided on the surface of each positioning plate, a positioning bolt matched with the positioning bolt is threadedly connected in each threaded hole, and a turntable is placed on the top of the positioning frame;

[0008] The correction component comprises a cylinder, which is mounted on the top of the inner cavity of the correction bin, and the bottom end of the output shaft of the cylinder is fixedly connected to a mounting plate, and a mounting groove is provided on the surface of the mounting plate.

[0009] Furthermore, the front of the fixing block is L-shaped, and the two sides of the positioning frame are L-shaped, the distance between the two side outer walls is equal to the distance between a pair of inner walls of the fixing blocks, and the thickness of the two sides of the positioning frame is equal to the height of the inner wall of the fixing block.

[0010] Furthermore, the thread grooves and the mounting holes are both circular, have the same number and diameter, and each thread groove corresponds to the center of each mounting hole one by one.

[0011] Furthermore, a plurality of reinforcing ribs are fixedly connected to the inner walls on both sides of the positioning frame. The reinforcing ribs are triangular block structures, the tops of which are fixedly connected to the top inner walls of the positioning frame, and the reinforcing ribs are equidistantly linearly distributed along the width direction of the positioning frame.

[0012] Furthermore, the number of the positioning plates is three, and the positioning plates are arranged in a circular array with the turntable as the center.

[0013] Furthermore, a layer of buffer pad is provided on the end surface of each positioning bolt.

[0014] Furthermore, a layer of anti-skid pad is arranged on the top surface of the positioning frame, and the surface of the anti-skid pad is engraved with herringbone anti-skid patterns.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) When in use, the turntable test and calibration device of the utility model can play a role of clamping and positioning through the positioning component, thereby effectively improving the stability of the turntable to avoid the turntable from shaking and displacement during the test and calibration process, which may cause errors in the calibration results. In addition, the positioning component can be adjusted according to the size of the turntable so as to install and position turntables of different sizes, thereby greatly improving the application range of the entire test and calibration device;

[0017] (2) When the test and calibration device of the turntable of the utility model is in use, the turntable in the calibration chamber can be isolated from the outside world by closing the chamber door, which not only prevents the change of the external environment from affecting the accuracy and stability of the calibration result, but also prevents the gas or liquid on the turntable from splashing and endangering personal safety;

[0018] (3) When in use, the test and correction device for a turntable in the utility model can fix the positioning frame by the cooperation between the positioning bolts, the threaded grooves and the threaded holes. By unscrewing the positioning bolts, the entire positioning assembly together with the turntable can be taken out of the correction chamber to facilitate the inspection and replacement of the turntable and related components. In addition, by unscrewing the screws and nuts, the laser rangefinder and other equipment can be removed from the mounting plate to facilitate the inspection and replacement of related correction equipment.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a structural schematic diagram of a test and correction device for a turntable of the utility model;

[0022] Figure 2 This is a structural schematic diagram of the center calibration chamber of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the positioning component in the utility model;

[0024] Figure 4 It is a top view of the positioning component in the utility model;

[0025] Figure 5 It is a structural schematic diagram of the positioning bolt in the utility model;

[0026] Figure 6 It is a bottom view of the mounting plate in the utility model.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Calibration chamber; 2. Chamber door; 3. Observation window; 4. Fixing block; 5. Mounting hole; 6. Mounting bolt; 7. Positioning frame; 8. Threaded groove; 9. Positioning plate; 10. Threaded hole; 11. Positioning bolt; 12. Turntable; 13. Cylinder; 14. Mounting plate; 15. Mounting groove; 16. Reinforcement rib; 17. Buffer pad; 18. Anti-slip pad. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that terms such as "relative", "one end", "inside", "lateral", "end", "two ends", "both sides", "front", "one end face", "the other end face" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] See also Figure 1-6 As shown, a test and calibration device for a turntable of the utility model comprises a calibration chamber 1, a chamber door 2 is installed on the front side of the calibration chamber 1, when the turntable 12 is tested and calibrated, the chamber door 2 can be closed to separate the turntable 12 from the outside world, which not only avoids the change of the external environment from affecting the accuracy and stability of the calibration result, but also prevents the gas or liquid on the turntable 12 from splashing and endangering personal safety, an observation window 3 is installed on the chamber door 2, and an observation port for installing the observation window 3 is opened on the chamber door 2, the observation window 3 is made of transparent glass window material, and can be fixed in the observation port by glue or other means, when the chamber door 2 is closed, the test and calibration status of the turntable 12 in the calibration chamber 1 can be observed in real time through the observation window 3, a pair of fixing blocks 4 are fixedly connected to the chamber bottom of the calibration chamber 1, a plurality of mounting holes 5 are opened on the top of each fixing block 4, a mounting bolt 6 is inserted into each mounting hole 5, a positioning component is installed between the pair of fixing blocks 4, and a calibration component is installed on the chamber top of the calibration chamber 1;

[0032] The positioning assembly includes a positioning frame 7, both sides of which are provided with a plurality of threaded grooves 8 that match the mounting bolts 6, a plurality of positioning plates 9 are fixedly connected to the top of the positioning frame 7, a threaded hole 10 is provided on the surface of each positioning plate 9, and a positioning bolt 11 that matches it is threadedly connected in each threaded hole 10, and a turntable 12 is placed on the top of the positioning frame 7, and by tightening the positioning bolts 11, the ends of the positioning bolts 11 can be tightly pressed against the side walls of the turntable 12 to play a role in clamping and positioning, thereby effectively improving the stability of the turntable 12, so as to avoid the turntable 12 from shaking and displacement during the test and correction process, which may cause errors in the calibration results, and the screwing depth of the positioning bolts 11 can be adjusted according to the size of the turntable 12, so as to install and position turntables 12 of different sizes, thereby greatly improving the scope of application of the entire test and correction device;

[0033] The correction component includes a cylinder 13, which is installed on the top of the inner cavity of the correction chamber 1. The cylinder 13 can be fixed by screws or the like. The bottom end of the output shaft of the cylinder 13 is fixedly connected with a mounting plate 14, which can be fixed by screws or the like. A mounting groove 15 is provided on the surface of the mounting plate 14, and screws and nuts can be inserted into the mounting groove 15. The laser rangefinder and other equipment can be fixedly installed on the top of the mounting plate 14 by the screws and nuts, so as to test and correct the turntable 12. The mounting plate 14 can be driven up and down together with the correction equipment by driving the cylinder 13, so as to adjust the installation height of the correction equipment as needed. The laser rangefinder and other equipment can be removed from the mounting plate 14 by unscrewing the screws and nuts, so as to inspect and replace the relevant correction equipment.

[0034] Among them, the front of the fixing block 4 is L-shaped, and the two sides of the positioning frame 7 are L-shaped. The distance between the outer walls on both sides is equal to the distance between the inner walls of a pair of fixing blocks 4, and the thickness of the two sides of the positioning frame 7 is equal to the height of the inner wall of the fixing block 4. The two sides of the positioning frame 7 can be respectively inserted and fitted on the inner wall of the corresponding fixing block 4. At this time, the fixing block 4 can play a guiding role to facilitate the positioning and installation of the positioning frame 7.

[0035] Among them, the thread groove 8 and the mounting hole 5 are both circular, with the same number and equal diameter, and each thread groove 8 corresponds to the center of each mounting hole 5 one by one, and the end of the positioning bolt 11 in each mounting hole 5 can be screwed into the corresponding thread groove 8. At this time, the positioning frame 7 can be fixed by the mutual cooperation between the positioning bolt 11, the thread groove 8 and the threaded hole 10. By unscrewing the positioning bolt 11, the entire positioning assembly together with the turntable 12 can be taken out from the correction chamber 1, so as to inspect and replace the turntable 12 and related components.

[0036] Among them, the inner walls on both sides of the positioning frame 7 are fixedly connected with a plurality of reinforcing ribs 16, the reinforcing ribs 16 are triangular block structures, and their tops are fixedly connected to the top inner walls of the positioning frame 7, and the reinforcing ribs 16 are equidistantly linearly distributed along the width direction of the positioning frame 7. The positioning frame 7 can be supported and reinforced by each reinforcing rib 16, so as to improve the structural firmness of the positioning frame 7, thereby preventing the positioning frame 7 from bending and deforming after being subjected to force for a long time.

[0037] Among them, the number of positioning plates 9 is three, and the positioning plates 9 are arranged in a circular array with the turntable 12 as the center. Through multiple positioning plates 9 and positioning bolts 11, the turntable 12 can be clamped and positioned from multiple angles at the same time, thereby further improving the stability of the turntable 12.

[0038] Among them, a layer of buffer pad 17 is provided on the end surface of each positioning bolt 11. The buffer pad 17 can be a rubber pad and is fixed to the end of the positioning bolt 11 by glue or other means. When the positioning bolt 11 is against the side wall of the turntable 12, the buffer pad 17 can play a buffering role to avoid direct contact between the side wall surface of the turntable 12 and the positioning bolt 11 to cause collision and wear.

[0039] Among them, a layer of anti-skid pad 18 is provided on the top surface of the positioning frame 7. The anti-skid pad 18 can be made of rubber pad and is fixed to the top of the positioning frame 7 by glue or other means. When the turntable 12 is placed on the positioning frame 7, the anti-skid pad 18 can play an anti-wear role to avoid the bottom surface of the turntable 12 from being in contact with the positioning frame 7 for a long time and causing wear. The surface of the anti-skid pad 18 is engraved with herringbone anti-skid patterns, which can increase the friction between the turntable 12 and the anti-skid pad 18 to play an anti-skid role, thereby preventing the turntable 12 from slipping and displacement.

[0040] The circuits, electronic components and chip modules involved in the utility model are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0041] The standard parts used in the application documents can all be purchased from the market. All the components in this application document can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art. The electrical components appearing in this article are all electrically connected to the external main controller and 220V AC power, and the main controller can be a conventional known device that controls the LED lamp body, etc.

[0042] The working principle of the utility model is:

[0043] When the utility model is used, firstly, the electrical components in the device are connected to the external control switch and power supply through the wires, then the turntable 12 to be calibrated and tested is placed on the positioning frame 7, and the positioning bolts 11 on each positioning plate 9 are tightened until the ends of each positioning bolt 11 are tightly against the side wall of the turntable 12, so that the turntable 12 is clamped and fixed on the positioning frame 7, and then the warehouse door 2 is closed, and the turntable 12 is driven to rotate. At this time, the turntable 12 can be tested and calibrated by using the laser rangefinder and other equipment installed at the bottom of the mounting plate 14. The specific principle can refer to the existing turntable Calibration technology, such as a laser rangefinder, can determine the linear velocity by measuring the position change of a certain point on the turntable 12 from a long distance, thereby calculating the angular velocity of the turntable 12 to ensure that the rotation speed meets the requirements and the accuracy is consistent at different speeds, thereby achieving the purpose of test and calibration. Laser rangefinders and other equipment are existing technology products that can be directly purchased on the market. Their specific structure and working principle can be found in the relevant product manual, which will not be described in detail in this application. When the entire test and calibration work is completed, turn off the relevant electrical components and power supply, and take the turntable 12 out of the calibration chamber 1.

[0044] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A test and calibration device for a turntable, characterized in that: It comprises a correction bin, a bin door is installed on the front side of the correction bin, an observation window is installed on the bin door, a pair of fixing blocks are fixedly connected to the bin bottom of the correction bin, a plurality of mounting holes are opened on the top of each fixing block, a mounting bolt is inserted into each mounting hole, a positioning assembly is installed between the pair of fixing blocks, and a correction assembly is installed on the bin top of the correction bin; The positioning assembly includes a positioning frame, both sides of which are provided with a plurality of threaded grooves matched with mounting bolts, a plurality of positioning plates are fixedly connected to the top of the positioning frame, a threaded hole is provided on the surface of each positioning plate, a positioning bolt matched with the positioning bolt is threadedly connected in each threaded hole, and a turntable is placed on the top of the positioning frame; The correction component comprises a cylinder, which is mounted on the top of the inner cavity of the correction bin, and the bottom end of the output shaft of the cylinder is fixedly connected to a mounting plate, and a mounting groove is provided on the surface of the mounting plate.

2. A test and calibration device for a turntable according to claim 1, characterized in that: The front of the fixing block is L-shaped, and the two sides of the positioning frame are L-shaped. The distance between the outer walls of the two sides is equal to the distance between the inner walls of a pair of fixing blocks, and the thickness of the two sides of the positioning frame is equal to the height of the inner wall of the fixing block.

3. The test and calibration device for a turntable according to claim 1, characterized in that: The thread grooves and the mounting holes are both circular, have the same number and diameter, and each thread groove corresponds to the center of each mounting hole one by one.

4. The test and calibration device for a turntable according to claim 1, characterized in that: The inner walls on both sides of the positioning frame are fixedly connected with a plurality of reinforcing ribs, the reinforcing ribs are triangular block structures, the tops of which are fixedly connected to the top inner walls of the positioning frame, and the reinforcing ribs are equidistantly linearly distributed along the width direction of the positioning frame.

5. The test and calibration device for a turntable according to claim 1, characterized in that: The number of the positioning plates is three, and the positioning plates are arranged in a circular array with the turntable as the center.

6. The test and calibration device for a turntable according to claim 1, characterized in that: A layer of buffer pad is arranged on the end surface of each positioning bolt.

7. The test and calibration device for a turntable according to claim 1, characterized in that: A layer of anti-skid pad is arranged on the top surface of the positioning frame, and herringbone anti-skid patterns are engraved on the surface of the anti-skid pad.

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