CN113670585A - Automatic target switching device - Google Patents
Automatic target switching device Download PDFInfo
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- CN113670585A CN113670585A CN202111057900.6A CN202111057900A CN113670585A CN 113670585 A CN113670585 A CN 113670585A CN 202111057900 A CN202111057900 A CN 202111057900A CN 113670585 A CN113670585 A CN 113670585A
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- target wheel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
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Abstract
The invention provides a target automatic switching device, comprising: the device comprises a shell assembly, a target wheel assembly for switching a target, a servo motor assembly for controlling the target wheel assembly to rotate, a worm and gear assembly for bearing the target wheel assembly and a control assembly; according to the invention, a plurality of target wheel disc units are arranged side by side, so that the volume of the switching device is reduced, and the number of the target wheel discs can be selected according to actual conditions; the control unit drives the two servo motors to rotate, so that the selection of the target wheel disc and the accurate switching and adjustment of the target can be realized, manual replacement or adjustment is not needed, and the introduction of subjective errors is reduced; the invention has simple structure, reserves the connecting interface used with different parallel light tubes or light sources, and has strong expansibility; the invention has high integral switching efficiency, high automation degree and strong applicability, and can meet the requirements of optical parameter detection of a telescopic system and performance detection of other various photoelectric equipment.
Description
Technical Field
The invention relates to the field of optical system parameter detection, in particular to an automatic target switching device.
Background
With the rapid development of the optoelectronic technology, the optical parameter detection system of the telescopic system is gradually developed in the directions of high precision, high automation degree, high integration degree, strong versatility and integration, however, one of the bottlenecks limiting the development of the automation degree is whether the target switching device can meet the requirement of parameter calibration.
For a telescopic system, there are more than ten conventional parameters to be measured, such as on-axis and off-axis MTF, field angle, resolution, magnification, zero walking momentum, pupil distance, parallax, field curvature, chromatic aberration and other key technical indexes, so that many detection targets need to be used; the current target switching schemes are mainly the following two: firstly, according to the requirement of the measured parameters, the test targets are displayed through the LCD display screen, although the automatic switching of a plurality of test targets can be realized, the measurement precision is difficult to ensure due to the limitation of the resolution of the LCD display screen; secondly, the detection targets are switched through the target switching wheel, but most of the existing target switching wheels are of single-target wheel disc structures, and after all the testing targets are embedded, the size is large, the switching precision of the target switching wheels is directly reduced, the measurement result is influenced, the device is only suitable for being used in environments with large space such as laboratories, and the automation, integration and universality development of comprehensive measurement equipment are influenced; in order to improve the measurement accuracy, the degree of automation, the integration level and the universality of the measurement equipment, an automatic target switching device which can be matched with the measurement equipment to realize high-precision parameter calibration is needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an automatic target switching device.
In order to achieve the purpose, the invention adopts the following specific technical scheme:
the invention provides a target automatic switching device, which comprises: the target wheel assembly, the servo motor assembly and the worm and gear assembly are arranged on the base; wherein the content of the first and second substances,
the target wheel assembly includes at least two target wheel disc units, each target wheel disc unit including: a target wheel disc for carrying a target, a target for optical testing, a bearing for carrying the target wheel disc;
the edge of the target wheel disc is of a gear structure; the target wheel disc is arranged on the bearing; target mounting holes for mounting targets are uniformly distributed on the target wheel disc around the axial direction;
a servo motor assembly for controlling rotation of a target wheel assembly comprising: the first servo motor is used for driving any one target wheel disc to rotate, and the main gear is used for transmitting force; the main gear is fixedly arranged on an output shaft of the first servo motor and is meshed with a gear structure of the target wheel disc;
a worm gear assembly for carrying a target wheel assembly comprising: the worm is meshed with the worm wheel and used for bearing the target wheel assembly;
the turbine is fixedly arranged on the output shaft of the second servo motor, and the central axis of the turbine and the axis of the output shaft of the second servo motor are collinear and are perpendicular to the central axis of the worm;
the second servo motor drives the worm to do reciprocating linear motion along the central axis of the worm through a worm wheel, so that different target wheel discs are respectively meshed with the main gear;
the worm comprises a smooth shaft section and a spiral tooth section; at least two target wheel disc units are arranged on the optical shaft section at intervals; the spiral tooth section is meshed with the turbine; the length of the spiral tooth section corresponds to the reciprocating linear motion range of the worm;
the central axis of the target wheel disc, the axis of the output shaft of the first servo motor, the central axis of the main gear and the central axis of the worm are parallel.
Preferably, the automatic target switching device further comprises a housing assembly; the housing assembly includes: the device comprises a shell, a front baffle arranged on the shell, a rear baffle arranged on the shell opposite to the front baffle, and a flange;
the front baffle and the rear baffle are both provided with light through holes for transmitting the targets; the position of the light through hole corresponds to the position of the target mounting hole; the size of the light through hole is not smaller than that of the target mounting hole; the flanges are respectively arranged at the light through holes of the front baffle and the rear baffle.
Preferably, the target automatic switching device further comprises a control component for controlling the servo motor component and the worm and gear component;
the control assembly includes: the target wheel disc positioning device comprises a first controller for controlling a first servo motor, a second controller for controlling a second servo motor and a limit switch for positioning the target wheel disc;
the first controller and the second controller are respectively arranged on the first servo motor and the second servo motor; the installation position of the limit switch corresponds to the movement starting position of the target wheel assembly.
Preferably, the target wheel disc unit further comprises: the device comprises a thimble for preventing a target wheel disc from freely rotating in a non-driving state, a spring for providing pre-tightening force for the thimble, a pressing ring for fixedly mounting a target on a target mounting hole, and a set screw for fixing the spring and the thimble; the central axis of the thimble is vertical to the central axis of the target wheel disc.
Preferably, the servo motor assembly further comprises: the rolling bearing group and the bearing seat are used for supporting an output shaft of the first servo motor;
the first servo motor is arranged on the shell and the rear baffle; the bearing seat is fixedly arranged on the shell.
Preferably, the worm gear assembly further comprises: the fixing frame is used for fixing the second servo motor on the rear baffle, the first sliding bearing is arranged on the front baffle and used for supporting the worm, and the second sliding bearing is arranged on the rear baffle and used for supporting the worm;
the worm is provided with a groove used for being matched with the thimble; the number of the grooves is the same as that of the target wheel disc units;
the central axis of the worm, the central axis of the first sliding bearing and the central axis of the second sliding bearing are collinear.
Preferably, the limit switch is mounted on the housing.
Preferably, the first servo motor and the second servo motor are both provided with an encoder and a reduction gear.
Preferably, the section of the worm shaft for bearing the target wheel assembly is provided with a pin opening, and the pin opening axially fixes the target wheel assembly through a bayonet.
Preferably, in the target wheel assembly, the planes of the root circles of the gear structures of at least two target wheel discs are parallel to each other.
The invention can obtain the following technical effects:
according to the invention, a plurality of target wheel disc units are arranged side by side, so that the volume of the switching device is reduced, and the number of the target wheel discs can be selected according to actual conditions; the control unit drives the two servo motors to rotate, so that the selection of the target wheel disc and the accurate switching and adjustment of the target can be realized, manual replacement or adjustment is not needed, and the introduction of subjective errors is reduced; the invention has simple structure, reserves the connecting interface used with different parallel light tubes or light sources, and has strong expansibility; the invention has high integral switching efficiency, high automation degree and strong applicability, and can meet the requirements of optical parameter detection of a telescopic system and performance detection of other various photoelectric equipment.
Drawings
Fig. 1 is a front internal structural schematic diagram of an automatic target switching apparatus according to an embodiment of the present invention;
fig. 2 is a schematic front appearance view of an automatic target switching device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the mating of a target wheel assembly and a servo motor assembly according to an embodiment of the invention;
FIG. 4 is a side full sectional view of an automatic target switching device according to an embodiment of the present invention:
FIG. 5 is a schematic structural diagram of a worm and gear assembly according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of the mating of a target wheel, thimble, and worm groove in accordance with an embodiment of the present invention.
Wherein the reference numerals include: the device comprises a shell assembly 1, a front baffle plate 11, a shell 12, a rear baffle plate 13, a flange 14, a target wheel assembly 2, a target wheel disc 21, a target 22, a bearing 23, a pressing ring 24, a set screw 25, a spring 26, an ejector pin 27, a target mounting hole 28, a servo motor assembly 3, a first servo motor 31, a main gear 32, a rolling bearing set 33, a bearing seat 34, a worm and gear assembly 4, a second servo motor 41, a fixed frame 42, a turbine 43, a worm 44, a first sliding bearing 45, a second sliding bearing 46, a groove 47, a control assembly 5 and a limit switch 51.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, the same reference numerals are used for the same blocks. In the case of the same reference numerals, their names and functions are also the same. Therefore, detailed description thereof will not be repeated.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention.
The specific operation of the present invention will be described in detail with reference to fig. 1 to 6:
as shown in fig. 1, the present invention provides an automatic target switching device, including: the device comprises a shell assembly 1, a target wheel assembly 2, a servo motor assembly 3, a worm and gear assembly 4 and a control assembly 5;
the housing assembly 1 serves to support and protect other components. The housing assembly 1 comprises: front baffle 11, shell 12, backplate 13, flange 14.
The front baffle 11 is mounted on the housing 12.
The rear barrier 13 is mounted on the housing 12 opposite to the front barrier 11.
The front baffle plate 11 and the rear baffle plate 13 are both provided with light through holes for transmitting the target 22; the position of the light through hole corresponds to the position of the target mounting hole 28; the size of the light through hole is not smaller than that of the target mounting hole 28;
the flanges 14 are respectively installed at the light passing holes of the front barrier 11 and the rear barrier 13.
The target wheel assembly 2 is used to carry and switch the target 22. The target wheel assembly 2 includes at least two target wheel disc units, each including: target wheel disc 21, target 22, bearing 23, clamping ring 24, set screw 25 for fixing spring 26 and thimble 27, spring 26 and thimble 27.
The number of the target wheel disc units can be adjusted correspondingly according to actual test requirements. A plurality of target wheel disc units are mounted at intervals on the worm 44. The planes of the root circles of the gear structures of the target wheel discs 21 in the target wheel disc units are all parallel to each other.
The target wheel disc 21 is used to carry a target 22. As shown in fig. 3, the edge of the target wheel disc 21 is a gear structure; the target wheel disc 21 is mounted on the worm 44 through a bearing 23; a target mounting hole 28 for mounting the target 22 and a through hole for mounting the thimble 27 are axially uniformly formed in the target wheel disk 21.
In order to ensure the switching precision of the target automatic switching device, the position of the target mounting hole 28 has a fixed angle relation with the gear teeth in the gear structure. In order to realize the cooperative use of a plurality of target wheel discs 21, the number of target mounting holes 28 is greater than the number of targets 22, and the target mounting holes 28 that are added are not provided with the targets 22 and serve as light-passing holes to pass through the targets 22 on other target wheel discs 21.
In one embodiment of the present invention, each target wheel 21 is left with one target mounting hole 28 and no target 22 as a clear hole.
The target 22 is used for optical testing. The target 22 is selected according to the actual optical testing requirements.
The bearing 23 is used to carry the target wheel disc 21. The bearing 23 is a bearing with a constant radial play. In one embodiment of the invention, the bearing 23 is a rolling bearing.
The clamping ring 24 is used to fixedly mount the target 22 to the target mounting hole 28. In one embodiment of the invention, the clamping ring 24 secures the target 22 by interference fit with the target mounting hole 28.
The set screw 25 is used to fix the spring 26 and the thimble 27. The set screw 25 is mounted on the target plate 21.
The spring 26 is used to provide a pre-tightening force to the thimble 27 to ensure that the thimble 27 is tightly fitted with the groove 47, so as to prevent the target wheel disc 21 from freely rotating in a non-driving state.
The ejector pin 27 is used to prevent the target wheel disk 21 from freely rotating in the non-driving state. As shown in fig. 6, the center axis of the ejector pin 27 is perpendicular to the axis of the target disk 11. The set screw 25, the spring 26 and the thimble 27 are sequentially installed in the target wheel disc 21.
The servo motor assembly 3 is used for controlling the target wheel assembly 2 to rotate. The servo motor assembly 3 includes: a first servomotor 31, a main gear 32, a rolling bearing set 33, and a bearing housing 34.
The first servo motor 31 is used for driving any one of the target wheel discs 21 to rotate. The first servomotor 31 is mounted on the housing 12 and the tailgate 13. In order to realize the high-precision rotation of the target wheel disc 21 and the high-precision switching of the target 22, the first servo motor 31 is provided with an encoder and a speed reducer.
The main gear 32 is used for transmitting the force of the first servo motor 31 to drive the target wheel disc 21 to rotate. The main gear 32 is fixedly mounted on the output shaft of the first servo motor 31 and is engaged with the gear structure of the target wheel disc 21. The width of the main gear 32 is such that the main gear 32 does not contact with other target wheel discs 21 when engaging with one target wheel disc 21, so as not to interfere with the movement.
In one embodiment of the present invention, the main gear 32 transmits force by being keyed with an output shaft of the first servo motor 31.
The rolling bearing group 33 and the bearing housing 34 are used to support the output shaft of the first servomotor 31 together. The rolling bearing set 33 is fixedly mounted on a bearing block 34. The rolling bearing set 33 is a bearing with a constant radial play. The bearing housing 34 is fixedly mounted to the housing 12.
In one embodiment of the invention, the bearing housing 34 is fixedly mounted to the housing 12 by screws.
The worm gear assembly 4 is used for carrying the target wheel assembly 2. As shown in fig. 5, the worm gear assembly 4 includes: a second servo motor 41, a fixed frame 42, a worm wheel 43, a worm 44, a first sliding bearing 45 and a second sliding bearing 46.
The second servomotor 41 drives the worm 44 via the worm wheel 43 to perform a linear reciprocating motion along the central axis of the worm 44. To ensure accurate switching and accurate positioning of the main gear 32 and the target wheel disc 21, the second servomotor 41 is provided with an encoder and a reduction gear.
The fixing bracket 42 is used to fix the second servo motor 41 to the tailgate 13. As shown in fig. 5, in one embodiment of the present invention, the second servo motor 41 is fixed to the tailgate 13 by a fixing bracket using screws.
The worm wheel 43 is used for moving the worm 44. The turbine 43 is fixedly mounted on the output shaft of the second servo motor 41; the central axis of the worm wheel 43 and the axis of the output shaft of the second servomotor 41 are collinear and perpendicular to the central axis of the worm 44. In one embodiment of the present invention, the worm wheel 43 moves the worm 44 by being keyed to the output shaft of the second servomotor 41.
The worm 44 is used to carry the target wheel assembly 2. The worm 44 meshes with the worm wheel 43. As shown in fig. 6, the worm 44 is provided with a groove 47 for cooperating with the thimble 27; the number of grooves 47 is the same as the number of target wheel disc units.
The worm 44 includes a smooth shaft section and a helical tooth section; the optical axis section is used for bearing the target wheel assembly 2; at least two target wheel disc units are arranged on the optical shaft section at intervals; the optical axis section is also provided with a pin opening, and the pin opening axially positions the target wheel assembly 2 through a bayonet lock. The helical tooth section is used for meshing with the turbine 43; the length of the helical tooth segment corresponds to the range of reciprocal linear motion of the worm 44. The helical tooth segments do not interfere with the reciprocating linear motion of the worm 44.
The central axis of the worm 44, the central axis of the first sliding bearing 45, and the central axis of the second sliding bearing 46 are collinear.
The first slide bearing 45 is for supporting the worm 44. The first sliding bearing 45 is mounted on the front barrier 11. As shown in fig. 4, in one embodiment of the present invention, the first sliding bearing 45 is fixedly mounted on the front barrier 11 by screws.
The second slide bearing 46 is for supporting the worm 44. The second sliding bearing 46 is mounted on the tailgate 13. As shown in fig. 4, in one embodiment of the present invention, the second sliding bearing 46 is fixedly mounted on the tailgate 13 by screws.
The central axis of the target wheel disk 11, the axis of the output shaft of the first servo motor 31, the central axis of the main gear 32 and the central axis of the worm 44 are parallel.
The control assembly 5 is used for controlling the servo motor assembly 3 and the worm and gear assembly 4. The control assembly 5 comprises: a first controller, a second controller, a limit switch 51.
The first controller is used to control the first servo motor 31. The first controller is mounted on the first servo motor 31.
The second controller is used to control the second servo motor 41. The second controller is mounted on the second servo motor 41.
The limit switch 51 is used to position the target wheel disc 21. The installation position of the limit switch 51 corresponds to the movement start position of the target wheel assembly 2. As shown in fig. 4, a limit switch 51 is mounted on the housing 12. In one embodiment of the present invention, limit switch 51 is fixedly mounted to housing 12 by screws.
The working principle of the automatic target switching device provided by the invention is as follows:
the control assembly 5, the servo motor assembly 3 and the second servo motor 41 are powered on, firstly, the second servo motor 41 is controlled by the second controller in the control unit 5 to rotate, the target wheel assembly 2 is driven to move linearly towards the direction of the rear baffle 13 through the worm wheel 43 and the worm 44, when the rearmost target wheel disc 21 in the target wheel assembly 2 triggers the limit switch 51, the rotation of the second servo motor 41 is stopped, and at this time, the position of the target wheel assembly 2 is the motion initial position.
When the target 22 needs to be switched according to the requirement of actual optical measurement, the position of the target wheel disc 21 where the target 22 is located is determined first, then the first controller controls the first servo motor 31 to keep still, the second controller controls the second servo motor 41 to rotate, the target wheel assembly 2 is driven by the worm wheel 43 and the worm 44 to do linear motion in the axial direction of the worm 44, until the second servo motor 41 stops rotating after the target disc 21 where the target 22 is located is correctly meshed with the main gear 32, and at this time, the switching of the target wheel disc 21 is completed; finally, the second controller controls the second servo motor 41 to keep still, the first controller controls the first servo motor 31 to start rotating, the required target 22 is rotated to the light through hole of the front baffle 11 through the main gear 32 and the target wheel disc 21, and the rotation of the first servo motor 31 is stopped; comparing the axes of the light through holes of the front baffle plate 11 and the axes of the light through holes of other target disks 21 positioned in front of the target disk 21 where the target 22 is positioned, rotating the target disks 21 with misaligned axes; when the axes of the light through holes of other target discs 21 (namely the target mounting holes 28 without the targets 22) are ensured to be coincident with the axis of the light through hole of the front baffle plate 11, and the required targets 22 are positioned at the light through holes of the front baffle plate 11, switching the targets 22 according to the requirements of actual optical measurement is completed.
It is to be noted that, normally in the initial state, the axes of the light transmission holes of all the target wheel discs 21 are coincident with the axis of the light transmission hole of the front baffle plate 11; therefore, when the target 22 is to be switched to, the position of the target wheel disc 21 where the target 22 is located is determined, and then the target wheel disc 21 is rotated by the first servo motor 31 to rotate the target 22 to the through hole of the front baffle 11; and after the required target 22 is used up each time, the target disc 21 is reset to the position where the axis of the light through hole on the target disc 21 is overlapped with the axis of the light through hole of the front baffle plate 11, so as to facilitate the next use.
In short, when the target disc 21 required by actual measurement needs to be switched, the second controller controls the second servo motor 41 to rotate; when the position of the target 22 on the same target disc 21 needs to be switched, the first servo motor 31 is controlled to rotate by the first controller; when the desired target 22 is rotated to the position of the light through hole, the other target discs 21 located in front of the target disc 21 where the desired target 22 is located are also rotated to ensure that the axes of the light through holes of the other target discs 21 (i.e. the target mounting holes 28 where the target 22 is not mounted) are all coincident with the axes of the light through holes of the front baffle 11 (i.e. the other target discs 21 located in front of the target disc 21 where the desired target 22 is located do not block the desired target).
In summary, the present invention provides an automatic target switching device. According to the invention, a plurality of target wheel disc units are arranged side by side, so that the volume of the switching device is reduced, and the number of the target wheel discs 21 can be selected according to actual conditions; the control unit 5 drives the two servo motors to rotate, so that the target wheel disc 21 can be selected and the target 22 can be accurately switched and adjusted without manual replacement or adjustment, and the introduction of subjective errors is reduced; the invention has simple structure, reserves the connecting interface used with different parallel light tubes or light sources, and has strong expansibility; the invention has high integral switching efficiency, high automation degree and strong applicability, and can meet the requirements of optical parameter detection of a telescopic system and performance detection of other various photoelectric equipment.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be taken as limiting the invention. Variations, modifications, substitutions and alterations of the above-described embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.
The above embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An automatic target switching device, comprising: the target wheel assembly (2), the servo motor assembly (3) and the worm and gear assembly (4); wherein the content of the first and second substances,
the target wheel assembly (2) comprises at least two target wheel disc units, each target wheel disc unit comprising: a target wheel disc (21) for carrying the target (22), the target (22) for optical testing, a bearing (23) for carrying the target wheel disc (21);
the edge of the target wheel disc (21) is of a gear structure; the target wheel disc (21) is mounted on the bearing (23); target mounting holes (28) for mounting the target (22) are uniformly distributed on the target wheel disc (21) in the axial direction;
the servo motor assembly (3) for controlling the rotation of the target wheel assembly (2) comprises: a first servo motor (31) for driving any one of the target wheel discs (21) to rotate, and a main gear (32) for transmitting force; the main gear (32) is fixedly arranged on an output shaft of the first servo motor (31) and is meshed with a gear structure of the target wheel disc (21);
the worm and gear assembly (4) for carrying the target wheel assembly (2) comprises: a worm wheel (43), a second servo motor (41) for driving the worm wheel (43) to rotate, and a worm screw (44) which is meshed with the worm wheel (43) and used for bearing the target wheel assembly (2);
the turbine (43) is fixedly arranged on the output shaft of the second servo motor (41), and the central axis of the turbine (43) and the axis of the output shaft of the second servo motor (41) are collinear and perpendicular to the central axis of the worm (44);
the second servo motor (41) drives the worm (44) to do reciprocating linear motion along the central axis of the worm (44) through the worm wheel (43), so that different target wheel discs (21) are respectively meshed with the main gear (32);
the worm (44) comprises a smooth shaft section and a spiral tooth section; at least two target wheel disc units are arranged on the optical shaft section at intervals; the helical tooth section is meshed with the turbine (43); the length of the spiral tooth section corresponds to the reciprocating linear motion range of the worm (44);
the central axis of the target wheel disc (11), the axis of the output shaft of the first servo motor (31), the central axis of the main gear (32) and the central axis of the worm (44) are parallel.
2. The automatic target switching device according to claim 1, further comprising a housing assembly (1); the housing assembly (1) comprises: the device comprises a shell (12), a front baffle (11) arranged on the shell (12), a rear baffle (13) opposite to the front baffle (11) and arranged on the shell (12), and a flange (14);
the front baffle (11) and the rear baffle (13) are both provided with light through holes for penetrating through the target (22); the position of the light through hole corresponds to the position of the target mounting hole (28); the size of the light through hole is not smaller than that of the target mounting hole (28); the flanges (14) are respectively arranged at the light through holes of the front baffle (11) and the rear baffle (13).
3. The automatic target switching device according to claim 1, further comprising a control assembly (5) for controlling the servo motor assembly (3) and the worm and gear assembly (4);
the control assembly (5) comprises: a first controller for controlling the first servo motor (31), a second controller for controlling the second servo motor (41), and a limit switch (51) for positioning the target wheel disc (21);
the first controller and the second controller are respectively arranged on the first servo motor (31) and the second servo motor (41); the installation position of the limit switch (51) corresponds to the movement starting position of the target wheel assembly (2).
4. The target automatic switching apparatus according to claim 1, wherein the target wheel unit further comprises: the target wheel disc (21) is prevented from freely rotating in a non-driving state by a thimble (27), a spring (26) for providing pre-tightening force for the thimble (27), a pressing ring (24) for fixedly mounting the target (22) on the target mounting hole (28), and a set screw (25) for fixing the spring (26) and the thimble (27); the central axis of the thimble (27) is vertical to the central axis of the target wheel disc (11).
5. Target automatic switching device according to claim 1, characterized in that said servomotor assembly (3) further comprises: a rolling bearing group (33) and a bearing seat (34) for supporting an output shaft of the first servo motor (31);
the first servo motor (31) is arranged on the shell (12) and the rear baffle (13); the bearing seat (34) is fixedly arranged on the shell (12).
6. Target automatic switching device according to claim 1, characterized in that said worm-and-gear assembly (4) further comprises: a fixing frame (42) for fixing the second servo motor (41) on the rear baffle (13), a first sliding bearing (45) arranged on the front baffle (11) and used for supporting the worm (44), and a second sliding bearing (46) arranged on the rear baffle (13) and used for supporting the worm (44);
the worm (44) is provided with a groove (47) which is matched with the thimble (27); the number of the grooves (47) is the same as that of the target wheel disc units;
the central axis of the worm (44), the central axis of the first sliding bearing (45) and the central axis of the second sliding bearing (46) are collinear.
7. Target automatic switching device according to claim 3, characterized in that the limit switch (51) is mounted on the housing (12).
8. Target automatic switching device according to claim 1, characterized in that said first servomotor (31) and said second servomotor (41) are provided with encoders and reduction means.
9. Target automatic switching device according to claim 1, characterized in that the section of the optical axis of the worm (44) for carrying the target wheel assembly (2) is provided with a pin opening which axially fixes the target wheel assembly (2) by means of a bayonet lock.
10. Target automatic switching device according to claim 1, characterized in that in the target wheel assembly (2), the planes of the root circles of the gear structures of at least two target wheel discs (21) are all parallel to each other.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111057900.6A CN113670585A (en) | 2021-09-09 | 2021-09-09 | Automatic target switching device |
| CN202210196234.2A CN114608808A (en) | 2021-09-09 | 2022-03-01 | Automatic target switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111057900.6A CN113670585A (en) | 2021-09-09 | 2021-09-09 | Automatic target switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113670585A true CN113670585A (en) | 2021-11-19 |
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ID=78549206
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111057900.6A Pending CN113670585A (en) | 2021-09-09 | 2021-09-09 | Automatic target switching device |
| CN202210196234.2A Pending CN114608808A (en) | 2021-09-09 | 2022-03-01 | Automatic target switching device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210196234.2A Pending CN114608808A (en) | 2021-09-09 | 2022-03-01 | Automatic target switching device |
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| CN (2) | CN113670585A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984351A (en) * | 2021-11-23 | 2022-01-28 | 中国航空工业集团公司洛阳电光设备研究所 | Target correcting device with three-dimensional adjusting mechanism |
| CN114383633A (en) * | 2021-12-29 | 2022-04-22 | 西安中科微星光电科技有限公司 | Fine adjustment device of optical rotary target |
| CN114518219A (en) * | 2022-02-23 | 2022-05-20 | 品图锐光科技(深圳)有限公司 | Carrier and automatic optical detection equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116642669B (en) * | 2023-06-27 | 2024-02-09 | 湖南迈克森伟电子科技有限公司 | Infrared and visible light target simulation device |
-
2021
- 2021-09-09 CN CN202111057900.6A patent/CN113670585A/en active Pending
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2022
- 2022-03-01 CN CN202210196234.2A patent/CN114608808A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984351A (en) * | 2021-11-23 | 2022-01-28 | 中国航空工业集团公司洛阳电光设备研究所 | Target correcting device with three-dimensional adjusting mechanism |
| CN114383633A (en) * | 2021-12-29 | 2022-04-22 | 西安中科微星光电科技有限公司 | Fine adjustment device of optical rotary target |
| CN114383633B (en) * | 2021-12-29 | 2023-11-14 | 西安中科微星光电科技有限公司 | Fine tuning device for optical rotary target |
| CN114518219A (en) * | 2022-02-23 | 2022-05-20 | 品图锐光科技(深圳)有限公司 | Carrier and automatic optical detection equipment |
| CN114518219B (en) * | 2022-02-23 | 2024-04-19 | 品图锐光科技(深圳)有限公司 | Carrier and automatic optical detection equipment |
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| Publication number | Publication date |
|---|---|
| CN114608808A (en) | 2022-06-10 |
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Application publication date: 20211119 |