Alignment mechanism in microscopic scanning system

Abstract

The utility model relates to the technical field of microscopic scanner equipment, in particular to an alignment mechanism in a microscopic scanning system. Comprising an objective lens which is vertically installed on an optical path axis of a microscopic scanning system; the light source assembly is located under the objective lens and fixed to the supporting base. The supporting seat is detachably fixed on the upper surface of the imaging module substrate through a fastener; the eccentric adjusting piece is of an integrally-formed structure and comprises a round rod part and an eccentric part located above the round rod part, and the round rod part and the eccentric part are not coaxial. The round rod part is rotatably mounted in the imaging module substrate, and the eccentric part is rotatably mounted on the supporting seat; the driving assembly is in transmission connection with the eccentric part; and the eccentric adjusting piece is rotated through the driving assembly to drive the supporting seat to generate displacement in the plane of the imaging module substrate. The bottom of the supporting base extends towards the two sides to form symmetrically-distributed installation bosses, and counter bores with smooth inner walls are formed in the installation bosses in the vertical direction in a penetrating mode. According to the utility model, the position of the light source can be accurately and quickly adjusted, and the working efficiency of debugging personnel is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to microscopic scanning instrument equipment technical field, especially in a kind of alignment mechanism in microscopic scanning system. BACKGROUND

[0002] Traditional microscopic scanning system is usually composed of microscope, sample loading system, image acquisition device and analysis software etc. These systems are mainly used for high-resolution microscopic observation and image acquisition of biological samples to obtain information about cell structure and function. When the aperture of objective lens is small, resulting in insufficient incident light flux, the field of view will not be bright, and the image will be blurred. At this time, a light source is needed to increase the brightness of the field of view so that the object can be observed more clearly. In the prior art, the coaxial alignment of the light source and the objective lens is achieved by manually moving the light source and then checking the brightness of the field of view to determine whether the position is appropriate. However, the error caused by manual movement each time is large, which requires frequent manual adjustment of the light source, resulting in low efficiency and waste of time. The present application provides an alignment mechanism in a microscopic scanning system to solve the problems in the prior art. SUMMARY

[0003] The utility model aims at providing an alignment mechanism in a microscopic scanning system to solve the problem of manual movement of the light source to achieve coaxial alignment of the objective lens and the light source, which results in large error each time and requires frequent manual adjustment of the light source, resulting in low efficiency.

[0004] The technical solution of the utility model is an alignment mechanism in a microscopic scanning system, comprising:

[0005] An objective lens is vertically installed on the optical axis of the microscopic scanning system.

[0006] A light source assembly is located directly below the objective lens and fixed on a support seat. The support seat is detachably fixed on the upper surface of the imaging module substrate by a fastener.

[0007] The eccentric adjusting part is an integral structure, including a different shaft circular rod part and an eccentric part located above the circular rod part. The circular rod part is rotatably installed inside the imaging module substrate, and the eccentric part is rotatably installed on the support seat.

[0008] A driving assembly is in transmission connection with the eccentric part. The driving assembly rotates the eccentric adjusting part to drive the support seat to displace in the plane of the imaging module substrate.

[0009] Preferably, the bottom of the support seat extends symmetrically to both sides to form mounting bosses, and a countersunk hole with smooth inner wall is vertically formed in the mounting bosses. The countersunk hole includes a first hole segment at the upper part and a second hole segment at the lower part, and the diameter of the first hole segment is larger than that of the second hole segment.

[0010] The imaging module substrate is vertically provided with an internally threaded hole through the position of the counterbore, the fastener is a screw, the screw is fixed in the internally threaded hole after passing through the counterbore, the screw comprises a head and a screw rod extending along an axis and having a screw thread, and the maximum diameter of the screw rod is smaller than the hole diameter of the second hole section.

[0011] Preferably, when the screw is completely screwed into the internally threaded hole, the upper surface of the head of the screw is lower than the upper plane of the mounting boss, and the bottom surface of the partial body of the head of the screw is in contact with the body of the mounting boss forming the second hole section.

[0012] Preferably, the mounting boss is vertically provided with a mounting hole through the mounting boss, which is matched with the circumferential outer contour of the eccentric part.

[0013] Preferably, the eccentric part is in the shape of a cylinder, and the top end of the eccentric part is downwardly and inwardly provided with a hexagonal hole.

[0014] Preferably, the eccentric part is mounted in the mounting hole through a clearance fit, so as to realize the rotational assembly between the adjusting part and the support seat.

[0015] The head of the screw is in the shape of a cylinder.

[0016] Preferably, the driving assembly is an internal hexagonal wrench.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] (1) The alignment mechanism in the microscopic scanning system comprises an objective lens, a light source assembly, an eccentric adjusting part and a driving assembly, the support seat is driven to move omnidirectionally on the imaging module substrate by rotating the eccentric pin, and the coaxial alignment of the light source assembly and the objective lens is realized; the utility model can accurately and quickly adjust the position of the light source, and greatly improves the work efficiency of the debugging personnel.

[0019] (2) The rotational driving mode of the eccentric pin does not need a complex control program, and the fine adjustment can be completed through a simple tool (an internal hexagonal wrench), the operation complexity is reduced, and the utility model has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further described in connection with the drawings and embodiments:

[0021] Figure 1 It is a structure schematic view of the alignment mechanism in the microscopic scanning system described in the embodiment;

[0022] Figure 2 It is a structure schematic view of the alignment mechanism in the microscopic scanning system described in the embodiment; Figure 1

[0023] ​Figure 3 This is a schematic diagram of the assembly structure of the support base and the imaging module substrate described in this embodiment;

[0024] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0025] Figure 5 This is a schematic diagram of the eccentric pin described in this embodiment.

[0026] The components are: 1. Light source assembly, 2. Support base, 3. Eccentric pin, 4. Round rod part, 5. Eccentric part, 6. Imaging module substrate, 7. Hex wrench, 8. Mounting boss, 9. Countersunk hole, 10. First hole section, 11. Second hole section, 12. Internal threaded hole, 13. Hexagonal hole. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to specific embodiments:

[0028] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the 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 the utility model.

[0029] like Figures 1-4 As shown, an alignment mechanism in a microscopic scanning system is used for fine-tuning the coaxial alignment of the light source assembly 1 and the objective lens. It includes: an objective lens (not shown), vertically mounted on the optical path axis of the microscopic scanning system; a light source assembly 1, located directly below the objective lens and fixed to a support base 2; the support base 2 is detachably fixed to the upper surface of the imaging module substrate 6 by fasteners; and an eccentric adjustment component, which is an integrally formed structure including a circular rod portion 4 with different axes and an eccentric portion 5 located above the circular rod portion 4, such as... Figure 5 As shown, in this embodiment, the eccentric adjustment component is an eccentric pin 3; as Figure 2 As shown, the round rod portion 4 is rotatably mounted inside the imaging module substrate 6, and the eccentric portion 5 is rotatably mounted on the support base 2; the drive assembly is connected to the eccentric portion 5; the drive assembly rotates the eccentric adjustment component to drive the support base 2 to generate displacement in the plane of the imaging module substrate 6, that is, the eccentric pin 3 converts its rotational motion into planar displacement of the support base 2. In this embodiment, the drive assembly is an internal hex wrench 7.

[0030] like Figure 4As shown, the bottom of the support base 2 extends to both sides of the installation boss 8, and the installation boss 8 is vertically provided with a smooth inner wall sunken hole 9; the sunken hole 9 includes a first hole segment 10 at the upper part and a second hole segment 11 at the lower part, and the diameter of the first hole segment 10 is larger than that of the second hole segment 11; the imaging module substrate 6 is vertically provided with an inner threaded hole 12 at the position corresponding to the sunken hole 9, the fastener is a screw, the screw is fixed in the inner threaded hole 12 after passing through the sunken hole 9, the screw includes a head and a screw rod with a screw along the axis, and the maximum diameter of the screw rod is smaller than the hole diameter of the second hole segment 11, thereby providing space for the movement of the support base 2 on the imaging module substrate 6.

[0031] When the screw is completely screwed into the inner threaded hole 12, the upper surface of the head of the screw is lower than the upper plane of the installation boss 8, that is, the head of the screw is completely sunken into the first hole segment 10, and the bottom surface of the part of the body of the head of the screw is in contact with the body of the installation boss 8 forming the second hole segment 11. The installation boss 8 is vertically provided with a mounting hole matching the circumferential outer contour of the eccentric part 5. The eccentric part 5 is cylindrical, and the top end of the eccentric part 5 is downwardly recessed to form a hexagonal hole 13. The eccentric part 5 is installed in the mounting hole through clearance fit, thereby realizing the rotational assembly between the adjusting member and the support base 2, and the imaging module substrate 6 is also provided with an assembly hole, and the clearance fit is between the round rod part 4 and the assembly hole, thereby realizing the rotational assembly between the round rod part 4 and the imaging module substrate 6; the head of the screw is cylindrical.

[0032] The working principle of the alignment mechanism in the microscopic scanning system is as follows: first, the screw is fixed in the inner threaded hole 12 after passing through the sunken hole 9, and the screw is in an incomplete tightening state, that is, the head of the screw is not in contact with the body of the installation boss 8 forming the second hole segment 11; the inner hexagonal wrench 7 is inserted into the hexagonal hole 13 of the eccentric part 5 of the eccentric pin 3, the inner hexagonal wrench 7 is rotated, the eccentric pin 3 rotates around the central axis of the round rod part 4 in the assembly hole of the imaging module substrate 6, and the eccentric part can also rotate in the mounting hole due to the clearance fit between the mounting hole and the eccentric part, the rotation of the eccentric pin 3 cooperates with the screw, thereby driving the support base 2 to move in all directions on the imaging module substrate 6, thereby realizing the coaxial alignment of the light source assembly 1 and the objective lens, and when the position adjustment of the light source is completed, the screw is further tightened, the bottom surface of the part of the body of the head of the screw is in contact with the body of the installation boss 8 forming the second hole segment 11, and the support base 2 is fixed.

[0033] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application, therefore, from any point of view, the examples should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. An alignment mechanism in a microscopic scanning system, characterized by, The utility model relates to a kind of microscopical scanning system's alignment mechanism, including: Objective, vertically installed in the optical path axis of microscopical scanning system; Light source assembly, located just below the objective and fixed on support seat;The support seat is detachably fixed on the upper surface of imaging module base plate by fastener; Eccentricity adjusting member, an integral structure, including different shafts round bar part, eccentric part located above round bar part;The round bar part is rotatably installed in the inside of imaging module base plate, and the eccentric part is rotatably installed on support seat; Driving assembly, transmission connection with the eccentric part;The eccentricity adjusting member is rotated by driving assembly to drive support seat to generate displacement in the plane of imaging module base plate.

2. The alignment mechanism of claim 1, wherein: The bottom of the support seat extends symmetrically distributed mounting bosses to both sides, and a smooth inner wall sunken head hole is vertically provided in the mounting bosses;The sunken head hole includes a first hole section at the upper part and a second hole section at the lower part, and the diameter of the first hole section is greater than the diameter of the second hole section; The imaging module base plate vertically penetrates the inner threaded hole corresponding to the position of the sunken head hole, and the fastener is a screw;The screw is fixed in the inner threaded hole after penetrating the sunken head hole, and the screw includes a head and a screw rod with a screw thread extending along the axis, and the maximum diameter of the screw rod is smaller than the hole diameter of the second hole section.

3. The alignment mechanism of claim 2, wherein: When the screw is completely screwed into the inner threaded hole, the upper surface of the head of the screw is lower than the upper plane of the mounting boss, and the bottom surface of part of the body of the head of the screw is in contact with the body of the mounting boss forming the second hole section.

4. A micro scanning system according to claim 2, wherein: A mounting hole is vertically provided in the mounting boss, which matches the circumferential outer contour of the eccentric part.

5. A positioning mechanism in a microscopic scanning system according to claim 1, characterized in that: The eccentric part is cylindrical, and a hexagonal hole is provided in the top end of the eccentric part.

6. The alignment mechanism of claim 4, wherein: The eccentric part is installed in the mounting hole through clearance fit, so as to realize the rotary assembly between the adjusting member and the support seat; The head of the screw is cylindrical.

7. A micro scanning system according to claim 1, wherein: The driving assembly is an inner hexagonal wrench.

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