CN211857088U

CN211857088U - Thermal infrared imager optical axis adjustment mechanism

Info

Publication number: CN211857088U
Application number: CN201922503630.1U
Authority: CN
Inventors: 平学文
Original assignee: Shanxi Institute of Mechanical and Electrical Engineering
Current assignee: Shanxi Institute of Mechanical and Electrical Engineering
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-03
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an optical axis adjusting mechanism of a thermal infrared imager.A bottom frame is a supporting main body of the whole mechanism, is matched and installed with the bottom surface of a lower carriage through a chute and is adjusted by a carriage screw rod, so that the position adjustment in the up-down direction and the front-back direction can be realized; the dovetail groove on the lower carriage is matched with a dovetail convex rib of the cross carriage and a left and right stuff bar for installation, and the side hanging plate and the carriage screw rod are used for adjustment, so that the position adjustment in the left and right direction can be realized; the dovetail convex ribs on the cross planker are matched with the dovetail grooves on the lower bottom surface of the detector seat by a front and a rear plug bars, and the rear hanging plate and the planker screw rod are used for adjustment, so that the position adjustment in the front and rear directions can be realized. The utility model discloses follow earlier and adjust upper and lower direction position in accommodation process, about going on again and the accurate location of front and back position. After the adjustment is finished, the locking screw is used for locking, and the locking processing is carried out by matching with double nuts. In this way, the utility model discloses can realize the accurate school of triaxial linkage and transfer.

Description

Thermal infrared imager optical axis adjustment mechanism

Technical Field

The utility model relates to a thermal infrared imager optical axis adjusts technical field, especially relates to a triaxial adjustment mechanism that sensitivity is high.

Background

At present, when each thermal infrared imager manufacturer performs optical axis calibration, the method generally adopted is as follows: processing various adjusting gaskets with different thicknesses, placing the whole machine in the plane of the optical test system platform, adding the adjusting gaskets to the position of the lower bottom surface of the detector seat to be adjusted, and locking the adjusting gaskets by using screws after the adjusting gaskets are adjusted; the method has the following defects: for the thermal infrared imager with low optical axis requirement, the optical axis adjusting means can basically meet the requirement, but for the thermal infrared imager with high optical axis sensitivity requirement, the adjustment by the adjusting gasket is very difficult, the specification and the variety of the adjusting gasket are increased, more labor hour is consumed, and the production efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a triaxial adjustment mechanism, can adjust thermal infrared imager optical axis accurately.

In order to solve the technical problem, the utility model discloses a technical scheme be: the provided thermal infrared imager optical axis adjusting mechanism comprises a detector seat, a cross-shaped carriage, a lower carriage, front and rear stuff bars, left and right stuff bars, a rear hanging plate, a side hanging plate, a carriage screw rod, an underframe and other main parts. The cross carriage is connected with the detector seat and the lower carriage is connected with the lower carriage to realize front-back and left-right adjustment, and the lower carriage is connected with the chassis to realize up-down adjustment. The regulation is all rotated through twisting the planker lead screw and is changeed rectilinear motion, its characterized in that: the thread used by the carriage screw rod is a nonstandard fine thread, so that the required adjusting precision is ensured. After the adjustment is completed, the locking is performed by using the screw, the match strip is tightly pushed by the end face of the screw, and the locking processing is performed by matching double nuts.

The utility model has the advantages that: because most of optical axis regulation all adopt adjusting shim to adjust, adjusting shim specification kind is many, and the adjusting position is unfixed, complex operation inefficiency. The utility model discloses a cross planker, lower planker are accepted from top to bottom, can realize that the triaxial linkage is adjusted, and reasonable in design's lead screw thread pitch realizes accurate school and transfers. .

Drawings

Fig. 1 is a schematic perspective view of a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the underframe structure of the present invention;

FIG. 3 is a schematic view of the lower carriage structure of the present invention;

FIG. 4 is a schematic view of the cross carriage structure of the present invention;

fig. 5 is a schematic structural view of the detector seat of the present invention.

The parts in the drawings are numbered as follows: 1. a chassis; 101. a chute; 2. a cross planker; 201. upper dovetail convex ribs; 202. a lower dovetail convex rib; 3. front and back stuff strips; 4. a detector base; 401. a detector mounting surface; 402. a lower dovetail groove; 5. a rear hanging plate; 6. a lower carriage; 601. a lower bottom surface; 602. an upper dovetail groove; 7. a carriage screw rod; 8. side hanging plates; 9. a left and a right plugging strips; 10. and locking the screw.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1 to 5, an embodiment of the present invention includes:

an optical axis adjusting structure of a thermal infrared imager is shown in figure 1 and comprises an underframe 1, a cross planker 2, front and rear filler rods 3, a detector base 4, a rear hanging plate 5, a lower planker 6, a planker screw rod 7, a side hanging plate 8, left and right filler rods 9 and locking screws 10.

The chassis 1, the cross planker 2, the detector seat 4 and the lower planker 6 are the core components of the utility model, and the main structure of the whole mechanism is accepted.

As shown in fig. 1, the chassis 1 is a supporting body of the whole mechanism, is installed in a matching way with the surface 601 of the lower carriage 6 through a chute 101, and can realize position adjustment in the up-down direction and the front-back direction by adjusting through a carriage screw rod 7; a 602 dovetail groove in the lower carriage 6 is matched with a 202 dovetail convex rib in the cross carriage 2 and a left plug strip and a right plug strip 9 for installation, and the position adjustment in the left and right directions can be realized by adjusting the side hanging plate 8 and the carriage screw rod 7; a201 dovetail convex rib in the cross planker 2 is added with a front and a rear plug strip 3 to be matched with a dovetail groove 402 on the lower bottom surface of the detector seat, and the position of the detector can be adjusted in the front and rear direction by adjusting a rear hanging plate 5 and a planker screw rod 7, wherein the 401 surface is a detector mounting surface.

The utility model discloses follow earlier and adjust upper and lower direction position at the accommodation process, adjust lower planker 6 with planker lead screw 7 earlier promptly, confirm after the position again about reaching the accurate location of front and back position. After the adjustment is completed, the locking screw 10 is used for locking, and the loosening treatment is carried out by matching with double nuts.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a thermal infrared imager optical axis adjustment mechanism, includes chassis (1), cross planker (2), front and back stuff back (3), detector seat (4), back link plate (5), lower planker (6), planker lead screw (7), side link plate (8), controls stuff back (9), locking screw (10), its characterized in that: the chassis (1) is provided with a 10-degree chute (101), and the cross planker (2), the detector seat (4) and the lower planker (6) are provided with dovetail grooves and dovetail convex ribs for matching; the carriage screw rod (7) is made of stainless steel material, and the rest is subjected to aluminum alloy hard oxidation treatment; the left and right chock plug strips (9) and the front and rear chock plug strips (3) are both provided with screw top holes, so that the rear locking and positioning are convenient to adjust.

2. The thermal infrared imager optical axis adjustment mechanism of claim 1, wherein: the chassis (1) is completely released in structural stress, so that a lens and an adjusting mechanism are conveniently installed, and the stability of the main structure is kept.

3. The thermal infrared imager optical axis adjustment mechanism of claim 1, wherein: the dovetail structure angles of the cross planker (2), the detector seat (4) and the lower planker (6) are uniform and are set to be 110 degrees, and the stability of three-axis joint adjustment is facilitated.

4. The thermal infrared imager optical axis adjustment mechanism of claim 1, wherein: the pitch of the carriage screw rod (7) is less than 0.5 mm.