CN214749774U

CN214749774U - Electric fluorescent rotary disc

Info

Publication number: CN214749774U
Application number: CN202023163315.8U
Authority: CN
Inventors: 王荣荣; 张卡卡; 李子忠
Original assignee: Guangzhou Micro Shot Technology Co ltd
Current assignee: Guangzhou Micro Shot Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-11-16
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses an electric fluorescence turntable, which comprises a turntable, a fluorescence module, a driving mechanism, a fixing device, an origin sensor, a Hall sensor group and a controller, wherein the driving mechanism comprises a stepping motor, a first gear, a first rotating shaft, a second gear and a third gear, the third gear is fixedly connected on the turntable, the turntable is circumferentially provided with a plurality of working positions, each working position is preset with a unique binary code, and the binary code is represented by a magnetic coding group; the magnetic encoding sets are arranged on the rotary table, the Hall sensor set consists of a plurality of Hall sensors and is arranged on the fixing device, and each Hall sensor corresponds to one bit of encoding of the current working position; the turntable moves to a certain working position, and the magnetic coding group coded by the working position rotates to a position corresponding to the Hall sensor; the controller obtains the codes of the magnetic coding groups through level signals sensed by the Hall sensors, and the codes are compared with the preset codes of all working positions to identify the current working position.

Description

Electric fluorescent rotary disc

Technical Field

The utility model relates to a fluorescence carousel field especially relates to an electronic fluorescence carousel.

Background

The traditional fluorescent turntable is generally driven by a common motor, occupies a large space and is an unstable and reliable part for operation. In addition, the conventional fluorescent rotary disc generally only has one origin sensor for detecting the origin and performing initialization work, and at most has one in-place detection sensor for detecting whether each fluorescent hole site is rotated to the position, but the defects are obvious, namely which fluorescent hole site is specifically rotated cannot be directly fed back, and which fluorescent hole site is rotated by the fluorescent rotary disc can be calculated by further calculation of software, so that the conditions of error accumulation and error movement are easy to occur, and the conventional fluorescent rotary disc cannot adapt to the working occasions with higher time intensity.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an electric fluorescent turntable, which can improve the running precision, reduce the software error and adapt to the working occasion for a longer time.

The purpose of the utility model is realized by adopting the following technical scheme:

an electric fluorescent turntable comprises a turntable, a fluorescent module, a driving mechanism, a fixing device, an origin sensor, a magnetic coding group, a Hall sensor group and a controller, wherein the driving mechanism comprises a stepping motor, a first gear arranged on an output shaft of the stepping motor, a first rotating shaft, a second gear which is rotatably connected to the first rotating shaft and is in meshed connection with the first gear, and a third gear which is in meshed connection with the second gear, the third gear is fixedly connected to the turntable, a plurality of working positions are arranged in the turntable along the circumferential direction, each working position is provided with one fluorescent module, each working position is preset with a unique binary code, and the binary code is represented by one magnetic coding group; the magnetic coding groups are arranged on the rotary table and rotate along with the rotary table, the Hall sensor group consists of a plurality of Hall sensors and is arranged on the fixing device, and each Hall sensor corresponds to one bit of code of the current working position; when the turntable moves to a certain working position, the magnetic coding group coded by the working position rotates to a position corresponding to the Hall sensor; the controller obtains the codes of the magnetic coding groups through level signals sensed by the Hall sensors, compares the codes with the preset codes of all working positions, and identifies the current working position; the origin sensor is installed on the fixing device and used for origin positioning, and the stepping motor, the Hall sensor and the origin sensor are all electrically connected with the controller.

Further, the magnetic encoding group is a magnet encoding group or a magnetite encoding group.

Furthermore, a plurality of groups of magnetic holes are arranged on the periphery of the turntable, and each group of magnetic holes is provided with a group of magnetic coding groups.

Furthermore, each working position on the rotary disc is provided with an opening penetrating through the rotary disc, the fluorescent module is provided with a fluorescent channel, and the central axis of the opening is positioned on the rotating track of the fluorescent channel.

Further, still include the second pivot and rotate the piece, the second pivot sets up the central point of carousel puts, it establishes to rotate the piece and rotate the cover in the second pivot, it is a plurality of fluorescence module circumference sets up rotate on the piece.

Further, a plurality of grooves are evenly arranged in the circumferential direction of the rotating part peripheral wall, the grooves are adjacent to each other, a clamping portion is formed between the grooves, and the fluorescent module is provided with a clamping groove matched with the clamping portion.

Further, the origin sensor is a photoelectric switch.

Further, the transmission ratio between the first gear and the second gear is 1:2, and the transmission ratio between the second gear and the third gear is 1: 5.

Further, the improved rotary table comprises a bottom plate, a part of the bottom plate extends to the bottom lower portion of the rotary table, a shaft hole is formed in the center of the rotary table, one end of the second rotary shaft penetrates through the shaft hole to be fixed on the bottom plate, and the other end of the second rotary shaft penetrates through the upper end face of the shaft hole.

Furthermore, a support is arranged on the bottom plate, the stepping motor is fixed to the support, the first rotating shaft is fixed to the bottom plate, and the central axis of the first rotating shaft is parallel to the central axis of the output shaft of the stepping motor.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model adopts the stepping motor and the gear to drive the turntable to rotate, and has the functions of miniaturization, stability and reliability; the Hall sensor group is used for position detection and correction, and the working position to which the turntable rotates can be directly fed back without accumulated calculation by software. The method avoids the error of software accumulation and can adapt to the working occasion with higher time intensity.

Drawings

Fig. 1 is a schematic view of an electric fluorescent rotary table provided by the present invention;

fig. 2 is an exploded view of an electric fluorescent rotary table according to the present invention;

in the figure: 1. a turntable; 2. a fluorescent module; 3. an origin sensor; 4. a group of Hall sensors; 5. a magnetic aperture; 6. a magnet; 7. a stepping motor; 8. a first gear; 9. a second gear; 10. a third gear; 11. a first rotating shaft; 12. a fluorescent channel; 13. opening a hole; 14. a second rotating shaft; 15. a rotating member; 16. a groove; 17. A clamping part; 18. a card slot; 19. a base plate; 20. a shaft hole; 21. and (4) a bracket.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "one," "another," and the like are used to distinguish similar elements, and these terms and other similar terms are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Corresponding reference numerals are used throughout the figures to indicate corresponding or corresponding elements (e.g., elements identified as "1 XX" and "2 XX" are structurally identical and functionally similar).

As shown in fig. 1-2, an electric fluorescent rotary disc 1 provided by the present invention comprises a rotary disc 1, a fluorescent module 2, a driving mechanism, a fixing device, an origin sensor 3, a magnetic coding group, a hall sensor group 4 and a controller, the driving mechanism comprises a stepping motor 7, a first gear 8 arranged on an output shaft of the stepping motor 7, a first rotating shaft 11, a second gear 9 which is rotatably connected on the first rotating shaft 11 and is meshed with the first gear 8, a third gear 10 which is meshed with the second gear 9, the third gear 10 is fixedly connected to the rotating disc 1, a plurality of working positions are arranged in the rotating disc 1 along the circumferential direction, each working position is provided with a fluorescent module 2, each working position is preset with a unique binary code, and the binary code is represented by a magnetic code group; the plurality of magnetic coding groups are arranged on the turntable 1 and rotate along with the turntable 1, the Hall sensor group 4 is composed of a plurality of Hall sensor groups 4 and is arranged on the fixing device, and each Hall sensor corresponds to one bit of code of the current working position; when the turntable 1 moves to a certain working position, the magnetic coding group coded by the working position rotates to a position corresponding to the Hall sensor; the controller obtains the codes of the magnetic coding groups through level signals sensed by the Hall sensors, compares the codes with the preset codes of all working positions, and identifies the current working position; the origin sensor 3 is installed on the fixing device and used for origin positioning, and the stepping motor 7, the Hall sensor and the origin sensor 3 are all electrically connected with the controller.

Specifically, the magnetic encoding group is a magnet encoding group or a magnetite encoding group. The edge circumference of carousel 1 is equipped with multiunit magnetic bore 5, and a set of magnetism coding group is installed to every group magnetic bore 5.

As shown in fig. 1, the hall sensor group 4 of the present invention employs three hall sensors altogether, and each hall sensor is used for detecting the magnet 6 or the magnet in the magnetic hole 5. When the magnet 6 is detected, the hall sensor reads 1, and when the magnet 6 is not detected, the hall sensor reads 0. So, as in the following table, 3 sets of sensors, theoretically can represent 3 power of 2 values, respectively: 000. 001, 010, 011, 100, 101, 110, 111, 8 in total. These values are transmitted to the controller as a negative feedback signal through a data line, and the controller can directly determine which fluorescence module 2 is currently rotated to.

If, after a long period of operation, the accumulated error causes the fluorescence module 2 to deviate from its position, one situation arises: the three Hall sensors can not detect the magnet 6, so that a signal 000 is sent, and therefore, the signal 000 can be used as a correction signal to tell the controller that the accumulated error reaches a certain degree and can not be increased continuously, the controller can be requested to firstly reset the electric fluorescent turntable 1 and then transfer to the fluorescent module 2, the process does not need to be stopped, manual intervention is not allowed, and the ongoing work of the electric fluorescent turntable 1 is not influenced.

The method comprises the following steps: the turntable 1 rotates to an initial position first, stops when the origin sensor 3 reads an origin signal, at the moment, the Hall sensor group 4 reads corresponding three signals and feeds the three signals back to the controller, the controller judges whether the signals are 000, if the signals are not 000, the signals are correct, and the next step of control is continued. After the continuous work is carried out for a long time, the electric fluorescent rotary disc 1 deviates from the theoretical position under the accumulation of errors, the sensor transmits 000 signals, and the controller carries out reset operation after receiving the signals and continues to rotate to the theoretical position.

Optionally, each working position on the rotating disc 1 is provided with an opening 13 disposed through the rotating disc 1, the fluorescence module 2 has a fluorescence channel 12, and a central axis of the opening 13 is located on a rotation track of the fluorescence channel 12.

Optionally, still include second pivot 14 and rotate piece 15, second pivot 14 sets up the central point of carousel 1 puts, it establishes to rotate piece 15 and rotates the cover on second pivot 14, it is a plurality of fluorescence module 2 circumference sets up rotate on piece 15.

Optionally, the peripheral wall circumference of the rotating part 15 is uniformly provided with a plurality of grooves 16, two adjacent grooves 16 form a clamping part 17 therebetween, and the fluorescent module 2 is provided with a clamping groove 18 matched with the clamping part 17.

Optionally, the origin sensor 3 is an opto-electronic switch.

Optionally, the transmission ratio between the first gear 8 and the second gear 9 is 1:2, and the transmission ratio between the second gear 9 and the third gear 10 is 1: 5.

Optionally, the turntable comprises a bottom plate 19, a part of the bottom plate 19 extends to the bottom of the turntable 1, a shaft hole 20 is formed in the center of the turntable 1, one end of the second rotating shaft 14 penetrates through the shaft hole 20 and is fixed on the bottom plate 19, and the other end of the second rotating shaft 14 penetrates through the upper end face of the shaft hole 20.

Optionally, a bracket 21 is disposed on the bottom plate 19, the stepping motor 7 is fixed on the bracket 21, the first rotating shaft 11 is fixed on the bottom plate 19, and a central axis of the first rotating shaft 11 is parallel to a central axis of an output shaft of the stepping motor 7.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. An electric fluorescent rotary disc is characterized by comprising a rotary disc, fluorescent modules, a driving mechanism, a fixing device, an origin sensor, a magnetic coding group, a Hall sensor group and a controller, wherein the driving mechanism comprises a stepping motor, a first gear arranged on an output shaft of the stepping motor, a first rotating shaft, a second gear which is rotatably connected to the first rotating shaft and is in meshed connection with the first gear, and a third gear which is in meshed connection with the second gear, the third gear is fixedly connected to the rotary disc, a plurality of working positions are circumferentially arranged in the rotary disc, each working position is provided with one fluorescent module, each working position is preset with a unique binary code, and the binary code is represented by one magnetic coding group; the magnetic coding groups are arranged on the rotary table and rotate along with the rotary table, the Hall sensor group consists of a plurality of Hall sensors and is arranged on the fixing device, and each Hall sensor corresponds to one bit of code of the current working position; when the turntable moves to a certain working position, the magnetic coding group coded by the working position rotates to a position corresponding to the Hall sensor; the controller obtains the codes of the magnetic coding groups through signals sensed by the Hall sensor, compares the codes with the preset codes of all working positions, and identifies the current working position; the origin sensor is installed on the fixing device and used for origin positioning, and the stepping motor, the Hall sensor and the origin sensor are all electrically connected with the controller.

2. The electric fluorescent turntable of claim 1, wherein the magnetic encoding set is a magnet encoding set or a magneto encoding set.

3. The electric fluorescent rotary disc of claim 1, wherein a plurality of sets of magnetic holes are circumferentially disposed on the edge of the rotary disc, and each set of magnetic holes is installed with one set of magnetic encoding set.

4. The motorized fluorescent carousel of claim 1, wherein each operating position on the carousel has an opening disposed therethrough, the fluorescent module having a fluorescent channel, the central axis of the opening being in the path of rotation of the fluorescent channel.

5. The electromotive fluorescent rotary plate of claim 1, further comprising a second rotating shaft and a rotating member, wherein the second rotating shaft is disposed at a center of the rotary plate, the rotating member is rotatably disposed on the second rotating shaft, and the plurality of fluorescent modules are circumferentially disposed on the rotating member.

6. The electric fluorescent rotary disc of claim 5, wherein the rotating member has a plurality of grooves uniformly formed on the outer circumferential wall, a clamping portion is formed between two adjacent grooves, and the fluorescent module has a clamping groove adapted to the clamping portion.

7. The motorized fluorescent turntable of claim 1, wherein the origin sensor is an opto-electronic switch.

8. The motorized fluorescent carousel of claim 1, wherein a gear ratio between the first gear and the second gear is 1:2, and a gear ratio between the second gear and the third gear is 1: 5.

9. The electromotive fluorescent rotary plate of claim 5, comprising a bottom plate, a portion of the bottom plate extending below the bottom of the rotary plate, a shaft hole being formed in the center of the rotary plate, one end of the second shaft passing through the shaft hole and being fixed to the bottom plate, and the other end of the second shaft passing through the upper end face of the shaft hole.

10. The electromotive fluorescent turntable of claim 9, wherein a bracket is provided on the base plate, the stepping motor is fixed on the bracket, the first shaft is fixed on the base plate, and a central axis of the first shaft is parallel to a central axis of an output shaft of the stepping motor.