An objective lens switching device

Abstract

The utility model relates to the technical field of microscope, especially a kind of objective lens switching device, including chassis, objective lens mounting disc, bar motor drive group and objective lens adjusting assembly;Objective lens mounting disc is slidably arranged in chassis along first horizontal direction, bar motor drive group is arranged in the side of chassis along first horizontal direction, bar motor drive group is transmissionally connected with objective lens mounting disc, to take objective lens mounting disc and move along first horizontal direction, objective lens adjusting assembly is arranged in the other side of chassis;Objective lens mounting disc is provided with several objective lens mounting holes, objective lens mounting seat is movably arranged in objective lens mounting hole, objective lens adjusting assembly has adjusting piece moving along second horizontal direction, adjusting piece can be butted with objective lens mounting seat, to take objective lens mounting seat and move along second horizontal direction;The movement of objective lens mounting disc is driven by bar motor, reduces installation debugging difficulty, improves transmission accuracy, and objective lens position is adjusted by objective lens adjusting assembly, improves the consistency of objective lens.

Description

Technical Field

[0001] This utility model relates to the technical field of microscopes, and in particular to an objective lens switching device. Background Technology

[0002] In modern microscopy, the efficiency and accuracy of the objective lens changing system are crucial for improving research and testing efficiency. Traditional manual objective lens changing is not only time-consuming and labor-intensive, but can also cause unnecessary physical damage to delicate optical components, affecting image quality. Therefore, electric objective lens changing devices have emerged, which use a motor to achieve rapid and smooth objective lens switching, significantly improving operational convenience and work efficiency.

[0003] Currently, existing electro-optical objective lens linear switching devices include a chassis, a drive motor, a transmission screw, and an objective lens mounting plate with objective lens mounting holes. The drive motor drives the transmission screw to move the objective lens mounting plate linearly, thereby switching different objectives on the objective lens mounting plate.

[0004] However, existing objective lens switching linear devices are difficult to install and debug, have slow transmission speed and low transmission accuracy, and lack adjustment function, which can easily lead to deviations in objective lens position and is not conducive to maintaining detection consistency. Utility Model Content

[0005] The purpose of this invention is to provide an objective lens switching device to solve the problems of existing linear objective lens switching devices, such as high installation and debugging difficulty, slow transmission speed and low transmission accuracy, lack of adjustment function, easy deviation of objective lens position, and difficulty in maintaining detection consistency.

[0006] The present invention provides an objective lens switching device, comprising a chassis, an objective lens mounting plate, a rod-shaped motor drive assembly, and an objective lens adjustment assembly;

[0007] The objective lens mounting plate is slidably disposed on the chassis along the first horizontal direction. The rod-shaped motor drive group is disposed on one side of the chassis along the first horizontal direction. The rod-shaped motor drive group is connected to the objective lens mounting plate to drive the objective lens mounting plate to move along the first horizontal direction. The objective lens adjustment assembly is disposed on the other side of the chassis.

[0008] The objective lens mounting plate has a plurality of objective lens mounting holes along the first horizontal direction. An objective lens mounting base is movably disposed in the objective lens mounting holes. The objective lens adjustment assembly has an adjustment member that moves along the second horizontal direction. The adjustment member can abut against the objective lens mounting base to drive the objective lens mounting base to move along the second horizontal direction. The first horizontal direction and the second horizontal direction are perpendicular to each other.

[0009] Furthermore, the objective lens switching device also includes a cross roller guide rail, which is disposed on the chassis along the first horizontal direction, and the objective lens mounting plate is disposed on the cross roller guide rail.

[0010] Furthermore, the rod-shaped motor drive assembly includes a stator, a mover, a stator mounting base, and a mover mounting base;

[0011] The stator mounting base is disposed on the chassis, the stator is fixed to the stator mounting base, the mover is movably disposed on the stator, two mover mounting bases are respectively disposed at both ends of the mover, and the mover mounting base is connected to the objective lens mounting plate.

[0012] Furthermore, the objective lens adjustment assembly includes an adjustment element mounting base;

[0013] The adjustment component mounting base is fixed to the base, and the two adjustment components pass through the adjustment component mounting base along the second horizontal direction and move along the second horizontal direction.

[0014] Furthermore, the objective lens switching device also includes a grating ruler and an encoder reader;

[0015] The grating ruler is disposed on the objective lens mounting plate along the first horizontal direction, and the encoder reading head is disposed on the base, with the encoder reading head facing the grating ruler.

[0016] Furthermore, the objective lens switching device also includes an anti-collision block;

[0017] The anti-collision block is fixed to the chassis, and the two anti-collision blocks are respectively arranged at both ends of the objective lens mounting plate along the first horizontal direction so that the objective lens mounting plate can abut against the anti-collision block.

[0018] Compared with the prior art, the present invention provides an objective lens switching device, including a chassis, an objective lens mounting plate, a rod-shaped motor drive group, and an objective lens adjustment assembly. The objective lens mounting plate is slidably disposed on the chassis along a first horizontal direction. The rod-shaped motor drive group is disposed on one side of the chassis along the first horizontal direction and is connected to the objective lens mounting plate to drive the objective lens mounting plate to move along the first horizontal direction. The objective lens adjustment assembly is disposed on the other side of the chassis. The objective lens mounting plate has a plurality of objective lens mounting holes along the first horizontal direction, and an objective lens mounting seat is movably disposed in the objective lens mounting holes. The objective lens adjustment assembly has an adjustment function that moves along a second horizontal direction. The entire assembly, including the adjustment components, can abut against the objective lens mount to move the objective lens mount along a second horizontal direction, with the first and second horizontal directions perpendicular to each other. A rod-shaped motor drive group replaces the motor and lead screw in driving the objective lens mounting plate, thus reducing installation and adjustment difficulty and improving transmission accuracy. Simultaneously, the objective lens adjustment assembly adjusts the objective lens position in the second horizontal direction, improving objective lens consistency. This solves the technical problems of existing linear objective lens switching devices, such as high installation and adjustment difficulty, slow transmission speed, low transmission accuracy, lack of adjustment function, and susceptibility to objective lens position deviations, which are detrimental to maintaining consistent testing. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the objective lens switching device provided in an embodiment of the present utility model;

[0021] Figure 2 This is an exploded view of the overall structure of the objective lens switching device provided in an embodiment of the present invention.

[0022] Figure label:

[0023] 100. Chassis;

[0024] 200. Objective lens mounting plate; 210. Objective lens mounting hole; 220. Objective lens mount;

[0025] 300. Rod motor drive unit; 310. Stator; 320. Mover; 330. Stator mounting base; 340. Mover mounting base;

[0026] 400 Objective lens adjustment assembly; 410 Adjustment element; 420 Adjustment element mounting base;

[0027] 500, crossed roller guide;

[0028] 600. Grating ruler;

[0029] 700. Encoder reader head;

[0030] 800, anti-collision blocks. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0038] like Figure 1 and Figure 2 As shown, this embodiment of the present invention provides an objective lens switching device, including a chassis 100, an objective lens mounting plate 200, a rod-shaped motor drive group 300, and an objective lens adjustment assembly 400. The objective lens mounting plate 200 is slidably disposed on the chassis 100 along a first horizontal direction. The rod-shaped motor drive group 300 is disposed on one side of the chassis 100 along the first horizontal direction and is connected to the objective lens mounting plate 200 for driving the objective lens mounting plate 200 to move along the first horizontal direction. The objective lens adjustment assembly 400 is disposed on the other side of the chassis 100. The objective lens mounting plate 200 is provided with a plurality of objective lens mounting holes 210 along the first horizontal direction. An objective lens mounting seat 220 is movably disposed in the objective lens mounting holes 210. The objective lens adjustment assembly 400 has an adjustment member 410 that moves along a second horizontal direction. The adjustment member 410 can abut against the objective lens mounting seat 220 to drive the objective lens mounting seat 220 to move along the second horizontal direction. The first horizontal direction and the second horizontal direction are perpendicular to each other.

[0039] That is, the objective lens switching device provided in this embodiment of the present invention uses a rod-shaped motor drive group 300 to drive the objective lens mounting plate 200 instead of a motor and lead screw, thereby reducing the difficulty of installation and debugging and improving the transmission accuracy. At the same time, the objective lens adjustment component 400 adjusts the objective lens position in the second horizontal direction, improving the consistency of the objective lens. This solves the technical problems of existing linear objective lens switching devices, such as high installation and debugging difficulty, slow transmission speed and low transmission accuracy, lack of adjustment function, easy deviation of objective lens position, and difficulty in maintaining detection consistency.

[0040] Specifically, in this embodiment, the chassis 100 is a rectangular flat plate with rectangular grooves and chamfers at its four corners. The first horizontal direction is the length of the chassis 100, and the second horizontal direction is the width of the chassis 100. The objective lens mounting plate 200 is slidably mounted on the chassis 100 along the first horizontal direction and is driven by the rod-shaped motor drive assembly 300, thus moving along the first horizontal direction. The objective lens mounting plate 200 has several objective lens mounting holes 210 along the first horizontal direction, and an objective lens mounting base 220 is movably mounted in each objective lens mounting hole 210. Therefore, by sliding the objective lens mounting plate 200, the position of the objective lens mounting holes 210 can be adjusted, thereby adjusting the position of the objective lens mounting base 220 and switching between different objectives. In this embodiment, the objective lens mounting holes 210 are specifically circular holes, and the objective lens mounting base 220 has a cylindrical protrusion at its bottom that can extend into the objective lens mounting holes 210. The outer diameter of the cylindrical protrusion is smaller than the inner diameter of the objective lens mounting hole 210, allowing the objective lens mount 220 to be finely adjusted in position within the objective lens mounting hole 210. The objective lens adjustment assembly 400 has an adjustment member 410 that moves along a second horizontal direction; in this embodiment, the adjustment member 410 is configured as an adjustment bolt. The adjustment member 410 abuts against the objective lens mount 220, thereby pushing the objective lens mount 220 along the second horizontal direction. When the objective lens mount 220 cannot be pushed at all, it indicates that the objective lens is in a preset position, thus determining the position of the objective lens mount 220 and the objective lens in both the first and second horizontal directions.

[0041] Preferably, the objective lens switching device further includes a cross roller guide 500, which is disposed on the chassis 100 along a first horizontal direction, and the objective lens mounting plate 200 is disposed on the cross roller guide 500.

[0042] Specifically, the crossed roller guide 500 is a high-precision, high-rigidity, and high-load linear motion system. The crossed roller guide has multiple rollers arranged in a 90° right-angled crossover pattern within the raceway (V-groove) of the guide. These crossover rollers are evenly separated by a retainer (or spacer). When the slider moves relative to the guide, these rollers circulate on the precision-ground V-groove. The crossover arrangement of the rollers effectively suppresses offset and wobbling during operation. In this embodiment, the raceway is fixed to the chassis 100, while the objective lens mounting plate 200 is bolted to the slider, allowing it to slide on the crossed roller guide 500.

[0043] Furthermore, the rod-shaped motor drive assembly 300 includes a stator 310, a mover 320, a stator 310 mounting base, and a mover 320 mounting base; the stator 310 mounting base is disposed on the chassis 100, the stator 310 is fixed to the stator 310 mounting base, the mover 320 is movably disposed on the stator 310, two mover 320 mounting bases are respectively disposed at both ends of the mover 320, and the mover 320 mounting base is connected to the objective lens mounting plate.

[0044] Specifically, the stator 310 mounting base is fixed to one side of the chassis 100 by bolts, the stator 310 is fixed to the stator 310 mounting base by bolts, the stator 310 has a through hole in the center, the mover 320 is movably disposed on the stator 310 along the first horizontal direction, the two mover 320 mounting bases are tightly held at both ends of the mover 320 and connected to the objective lens mounting plate 200 by bolts.

[0045] Furthermore, the objective lens adjustment assembly 400 includes an adjustment member 410 mounting base; the adjustment member 410 mounting base is fixed to the base, and two adjustment members 410 pass through the adjustment member 410 mounting base along a second horizontal direction and move along the second horizontal direction.

[0046] Specifically, the adjusting mounting base is cylindrical with a threaded hole in the center, and the two adjusting mounting bases are fixed to the base by bolts. The two adjusting members 410 pass through the two adjusting member 410 mounting bases respectively along the second horizontal direction. In this embodiment, the adjusting member 410 is set as an adjusting bolt, which is screwed into the adjusting mounting base so as to move along the second horizontal direction.

[0047] Furthermore, the objective lens switching device also includes a grating ruler 600 and an encoder reader 700; the grating ruler 600 is disposed on the objective lens mounting plate 200 along the first horizontal direction, and the encoder reader 700 is disposed on the base, with the encoder reader 700 facing the grating ruler 600.

[0048] Specifically, the grating ruler 600 is set on the objective lens mounting plate 200 along the first horizontal direction, and the encoder reading head 700 is set on the base and directly above the grating ruler 600. The encoder reading head 700 is set facing the grating ruler 600 to read the position information of the grating ruler 600, thereby determining the position of the objective lens mounting base 220 and the objective lens.

[0049] Furthermore, the objective lens switching device also includes anti-collision blocks 800; the anti-collision blocks 800 are fixed to the chassis 100, and the two anti-collision blocks 800 are respectively arranged at both ends of the objective lens mounting plate 200 along the first horizontal direction so that the objective lens mounting plate 200 can abut against the anti-collision blocks 800.

[0050] Specifically, in this embodiment, the anti-collision block 800 is configured as a contact switch. Two anti-collision blocks 800 are respectively disposed at both ends of the objective lens mounting plate 200 along a first horizontal plane and fixed to the chassis 100 by bolts. When the objective lens mounting plate 200 can abut against the anti-collision block 800, a signal is transmitted, thereby stopping the objective lens mounting plate 200 from moving and preventing the objective lens mounting plate 200 from impacting the chassis 100.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A lens switching device, characterized in that, It includes a chassis (100), an objective lens mounting plate (200), a rod-shaped motor drive assembly (300), and an objective lens adjustment assembly (400); The objective lens mounting plate (200) is slidably disposed on the chassis (100) along the first horizontal direction. The rod-shaped motor drive assembly (300) is disposed on one side of the chassis (100) along the first horizontal direction. The rod-shaped motor drive assembly (300) is connected to the objective lens mounting plate (200) for transmission, so as to drive the objective lens mounting plate (200) to move along the first horizontal direction. The objective lens adjustment assembly (400) is disposed on the other side of the chassis (100). The objective mounting plate (200) is provided with a plurality of objective mounting holes (210) along the first horizontal direction. An objective mounting base (220) is movably disposed in the objective mounting holes (210). The objective adjustment assembly (400) has an adjustment member (410) that moves along the second horizontal direction. The adjustment member (410) can abut against the objective mounting base (220) to drive the objective mounting base (220) to move along the second horizontal direction. The first horizontal direction and the second horizontal direction are perpendicular to each other.

2. The objective lens switching device according to claim 1, characterized in that, The objective lens switching device further includes a cross roller guide (500), which is disposed on the chassis (100) along the first horizontal direction, and the objective lens mounting plate (200) is disposed on the cross roller guide (500).

3. The objective lens switching device according to claim 1, characterized in that, The rod-shaped motor drive assembly (300) includes a stator (310), a mover (320), a stator (310) mounting base, and a mover (320) mounting base; The stator (310) mounting base is disposed on the chassis (100), the stator (310) is fixed to the stator (310) mounting base, the mover (320) is movably disposed on the stator (310), two mover (320) mounting bases are respectively disposed at both ends of the mover (320), and the mover (320) mounting base is connected to the objective lens mounting plate (200).

4. The objective lens switching device according to claim 1, characterized in that, The objective lens adjustment assembly (400) includes an adjustment element (410) mounting base; The mounting base of the adjustment member (410) is fixed to the chassis (100), and the two adjustment members (410) pass through the mounting base of the adjustment member (410) along the second horizontal direction and move along the second horizontal direction.

5. The objective lens switching device according to any one of claims 1-4, characterized in that, The objective lens switching device also includes a grating ruler (600) and an encoder reader (700); The grating ruler (600) is disposed on the objective lens mounting plate (200) along the first horizontal direction, and the encoder reading head (700) is disposed on the chassis (100) with the encoder reading head (700) facing the grating ruler (600).

6. The objective lens switching device according to any one of claims 1-4, characterized in that, The objective lens switching device also includes an anti-collision block (800); The anti-collision block (800) is fixed to the chassis (100), and the two anti-collision blocks (800) are respectively disposed at both ends of the objective lens mounting plate (200) along the first horizontal direction so that the objective lens mounting plate (200) can abut against the anti-collision block (800).

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