阅读说明：本技术 基于电磁定位的电动物镜转换器 (Electric objective lens converter based on electromagnetic positioning ) 是由 张凡 陈谦 郑廷 徐毅茹 曾呈 于 2020-09-09 设计创作，主要内容包括：本发明涉及显微镜领域,公开了一种基于电磁定位的电动物镜转换器,包括电机、转动盘、固定架、电磁定位装置；转动盘上开设有多个凹槽；固定架包括底座、电机支架和外壳；底座上有用于安装在显微镜镜筒上的接口；外壳设置于底座下方并与底座连接形成一端开口的箱体；电机支架设置于箱体内,转动盘转动设置于箱体开口处；电机固定于电机支架上；电机与转动盘连接。电磁定位装置包括推拉式电磁铁和位置检测装置。位置检测装置包括多个光电传感器和感测片；多个光电传感器安装在电机支架上；感测片安装在转动盘上。本方案解决电动物镜转换器上的定位器长期磨损导致的重复定位精度不高,以及在物镜转换中会长期累积误差的问题。(The invention relates to the field of microscopes, and discloses an electromagnetic positioning-based electric objective lens converter, which comprises a motor, a rotating disc, a fixed frame and an electromagnetic positioning device, wherein the motor is arranged on the rotating disc; a plurality of grooves are formed in the rotating disc; the fixing frame comprises a base, a motor bracket and a shell; the base is provided with an interface used for being arranged on a microscope lens cone; the shell is arranged below the base and connected with the base to form a box body with an opening at one end; the motor bracket is arranged in the box body, and the rotating disc is rotatably arranged at the opening of the box body; the motor is fixed on the motor bracket; the motor is connected with the rotating disc. The electromagnetic positioning device comprises a push-pull electromagnet and a position detection device. The position detection device comprises a plurality of photoelectric sensors and a sensing sheet; a plurality of photoelectric sensors are arranged on the motor bracket; the sensing chip is mounted on the rotating disk. The scheme solves the problems that the repeated positioning precision is not high due to long-term abrasion of a positioner on the electric objective lens converter, and errors can be accumulated for a long time in objective lens conversion.)

1. An electro-magnetic positioning based motorized objective lens changer, comprising: comprises a motor (8), a rotating disc (2), a fixing frame and an electromagnetic positioning device; a plurality of grooves are formed in the rotating disc (2); the fixed frame comprises a base (6), a motor bracket (9) and a shell (4); the base (6) is provided with an interface used for being installed on a microscope lens cone; the shell (4) is arranged below the base (6) and connected with the base (6) to form a box body with an opening at one end; the motor support (9) is arranged in the box body, and the rotating disc (2) is rotatably arranged at an opening of the box body; the motor (8) is fixed on the motor bracket (9); the motor (8) is connected with the rotating disc (2).

2. An electromagnetic positioning based motorized objective lens changer as recited in claim 1, wherein: the electromagnetic positioning device comprises a push-pull electromagnet (12) and a position detection device.

3. An electromagnetic positioning based motorized objective lens changer as recited in claim 2, wherein: the position detection device comprises a plurality of photoelectric sensors (5) and a sensing sheet (3); the photoelectric sensors (5) are arranged on the motor bracket (9); the sensing plate (3) is arranged on the rotating disc (2).

4. An electromagnetic positioning based motorized objective lens changer as recited in claim 1, wherein: a circle of steel balls (7) are arranged between the rotating disc (2) and the shell (4).

5. An electromagnetic positioning based motorized objective lens changer as recited in claim 1, wherein: a first gear (10) is arranged on a rotating shaft of the motor (8); a second gear (11) is arranged on the rotating disc (2); the first gear (10) and the second gear (11) are meshed.

6. An electromagnetic positioning based motorized objective lens changer as recited in claim 1, wherein: the motor (8) is a stepping motor.

Technical Field

The invention relates to a microscope objective lens control device, in particular to an electric objective lens converter based on electromagnetic positioning.

Background

Disclosure of Invention

The invention provides an electric objective converter based on electromagnetic positioning, which solves the problems of low repeated positioning precision caused by long-term abrasion of a positioner on the electric objective converter in the prior art and long-term accumulated error in objective conversion.

The technical scheme adopted by the invention for solving the technical problems is as follows: an electric objective lens converter based on electromagnetic positioning comprises a motor, a rotating disc, a fixed frame and an electromagnetic positioning device; a plurality of grooves are formed in the rotating disc; the fixing frame comprises a base, a motor bracket and a shell; the base is provided with an interface used for being installed on a microscope lens cone; the shell is arranged below the base and connected with the base to form a box body with an opening at one end; the motor bracket is arranged in the box body, and the rotating disc is rotatably arranged at an opening of the box body; the motor is fixed on the motor bracket; the motor is connected with the rotating disc.

Further, the method comprises the following steps: the electromagnetic positioning device comprises a push-pull electromagnet and a position detection device.

Further, the method comprises the following steps: the position detection device includes a plurality of photoelectric sensors and a sensing chip; the photoelectric sensors are arranged on the motor bracket; the sensing chip is mounted on the rotating disk.

Further, the method comprises the following steps: a circle of steel balls are arranged between the rotating disc and the shell, and friction between the rotating disc and the shell is reduced.

Further, the method comprises the following steps: a first gear is arranged on the motor rotating shaft; a second gear is arranged on the rotating disc; the first gear and the second gear are meshed.

Further, the method comprises the following steps: the motor is a stepping motor.

The invention has the beneficial effects that: according to the electromagnetic positioning-based electric objective lens converter, the objective lens transposition is realized by controlling the stepping motor, the in-place feedback is realized by detecting the photoelectric sensor, the accurate positioning of the turntable is realized by controlling the on-off state of the push-pull electromagnet, the accumulated error can be effectively eliminated, the abrasion of the positioning mechanism is reduced, and the service life of equipment is prolonged.

Drawings

FIG. 1 is a schematic diagram of an electro-magnetic positioning based motorized objective lens changer;

fig. 2 is a schematic structural diagram of an electromagnetic positioning device.

Labeled as: 1. an objective lens; 2. rotating the disc; 3. a sensing chip; 4. a housing; 5. a photosensor; 6. a base; 7. steel balls; 8. a motor; 9. a motor bracket; 10. a first gear; 11. a second gear; 12. push-pull type electromagnet.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.