CN220304802U - Torque measuring mechanism of lens torsion spring - Google Patents

Abstract

The utility model relates to the field of torque measuring mechanisms, in particular to a torque measuring mechanism of a torsion spring of a lens, which comprises a rotating base, wherein a placing groove is formed in the rotating base, at least two sliding block mechanisms are fixed in the placing groove, each sliding block mechanism comprises a driving component and a sliding block connected with the driving component in a driving mode, the sliding blocks are positioned in the placing groove, the driving component drives the sliding blocks to slide from the edge of the placing groove to the center, a rear mirror frame is placed in the center of the placing groove, the sliding blocks are propped against the rear mirror frame, the rotating base is fixed on a torque meter, the sliding block mechanisms fix the rear mirror frame on the rotating base, a deflector rod on the rear mirror frame is fluctuated to compress the torsion spring, the torsion spring is applied to the acting force of the rear mirror frame in the same direction, the rear mirror frame drives the rotating base to rotate on the torque meter, and the rotating quantity of the rotating base is measured through the torque meter, so that the torque of the torsion spring is measured.

Description

Torque measuring mechanism of lens torsion spring

Technical Field

The utility model relates to the field of torque measuring mechanisms, in particular to a torque measuring mechanism of a lens torsion spring.

Background

The optical lens is an indispensable component in the machine vision system, and directly affects the quality of imaging and the realization and effect of an algorithm. The all-in-one lens is internally provided with a rotatable deflector rod and a torsion spring sleeved on the deflector rod, torque of the torsion spring is required to be measured in the detection process, the existing detection mode is that a detection person manually dials the deflector rod to feel the tightness degree of the deflector rod, so that the torque size of the torsion spring is determined, torque data cannot be reflected, and the detection result is not visual enough.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a torque measuring mechanism of a lens torsion spring, which can solve the technical problems that in the existing detection process, torque data of the torsion spring cannot be reflected, the detection structure is not visual enough and the like.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model provides a moment of torsion measuring mechanism of camera lens torsional spring, the camera lens includes the rear mirror frame, rotatable the being fixed with driving lever on the rear mirror frame, the cover is equipped with the torsional spring on the driving lever, the both ends of torsional spring support with rear mirror frame and driving lever top respectively, its characterized in that, moment of torsion measuring mechanism include rotating base, the standing groove has been seted up on the rotating base, the standing groove internal fixation has two at least slider mechanisms, slider mechanism includes drive assembly and is connected the slider with the drive assembly drive, the slider is located the standing groove, drive assembly drive slider is slided to the center by the edge of standing groove, the rear mirror frame is placed at the standing groove center, the slider supports with the rear mirror frame top, rotating base fixes on the moment of torsion table.

Further, the driving assembly comprises a driving rod and a spring, the driving rod penetrates through the rotating base to be fixedly connected with the sliding block, the spring is sleeved on the driving rod, and two ends of the spring are respectively in propping contact with the sliding block and the inner side wall of the placing groove.

Further, the sliding block is a cylinder, and the cross section of the sliding block is in a sector shape.

Further, the bottom of the rotating base is fixed with a connecting rod extending downwards, and the connecting rod is spliced on the torque meter.

Further, the number of the sliding block mechanisms is three, and the three sliding block mechanisms are sequentially distributed on the periphery of the rear mirror frame.

Further, the shape of the rotating base is round, and the placing groove is a groove with a round opening.

The beneficial effects of the utility model are as follows:

in this scheme, slider mechanism fixes the rear mirror frame on rotating base, and the driving lever on the back mirror frame of undulant makes it compress the back to the torsional spring, and the torsional spring is applyed and is rotated the effort of rear mirror frame equidirectional rotation, and the rear mirror frame drives rotating base and rotates on the moment of torsion table, measures rotating base rotation amount through the moment of torsion table to the moment of torsion size of survey torsional spring. The torsion spring torque data are intuitively embodied, the measurement accuracy is higher, and the quality of the lens is better controlled.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a torque measuring mechanism mounting structure of a torsion lens spring according to the present utility model;

FIG. 2 is a schematic diagram of a torsion measuring mechanism of the torsion spring of the lens according to the present utility model;

FIG. 3 is a schematic view of a rear frame according to the present utility model;

FIG. 4 is a schematic view of a lever structure according to the present utility model;

fig. 5 is a schematic view of the torsion spring structure according to the present utility model.

Description of the main reference signs

1. A rear mirror frame; 101. a deflector rod; 1011. a protrusion; 102. a torsion spring; 1021. a first end; 1022. a second end; 1023. a body; 103. a relief groove;

2. a rotating base; 201. a placement groove; 202. a connecting rod; 203. a slider mechanism; 2031. a driving rod; 2032. a slide block; 2033. a spring;

3. a torque meter.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the utility model provides a torsion measuring mechanism for torsion springs of a lens, wherein the lens comprises a rear lens frame 1, a deflector rod 101 is rotatably fixed on the rear lens frame 1, a torsion spring 102 is sleeved on the deflector rod 101, and two ends of the torsion spring 102 are respectively propped against the rear lens frame 1 and the deflector rod 101. Referring to fig. 1 and 4, in the present embodiment, a protrusion 1011 on one side of the lever 101 has a plurality of protrusions 1011, and the plurality of protrusions 1011 are spaced apart. Referring to fig. 1 and 5, the torsion spring 102 includes a main body 1023 and a first end 1021 and a second end 1022 of the main body 1023, wherein the first end 1021 includes two bending portions, and the bending directions of the two bending portions are the same to form a hook shape. The first ends 1021 hang over the protrusions 1011 of the lever 101. The second end 1022 is a straight end, and the straight section extends outwards to abut against the outer side surface of the rear mirror frame 1. The outer side surface of the rear mirror frame 1 is provided with a yielding groove 103, and the second end 1022 of the torsion spring 102 is embedded in the yielding groove 103.

Referring to fig. 1 and 2, the torque measuring mechanism includes a rotating base 2, a placement groove 201 is formed in the rotating base 2, in this embodiment, the rotating base 2 is circular in shape, the placement groove 201 is a groove with a circular opening, the circular rotating base 2 and the placement groove 201 with the circular opening are matched with the rear mirror frame 1 in shape, so that materials are reduced to the maximum extent, and cost is saved.

Referring to fig. 1 and 2, at least two slider mechanisms 203 are fixed in the placement groove 201. The slider mechanism 203 includes a drive assembly and a slider 2032 drivingly coupled to the drive assembly, the slider 2032 being positioned within the placement slot 201, the drive assembly driving the slider 2032 to slide centrally from the edge of the placement slot 201. The rear mirror frame 1 is placed in the center of the placement groove 201, the sliding block 2032 abuts against the rear mirror frame 1, and the rotating base 2 is fixed on the torque meter 3. In this embodiment, the number of the slider mechanisms 203 is three, and the three slider mechanisms 203 are sequentially distributed on the peripheral side of the rear frame 1. The three slider mechanisms 203 ensure the stability of the rear mirror frame 1 to the maximum.

Referring to fig. 1 and 2, the driving assembly includes a driving rod 2031 and a spring 2033, and the driving rod 2031 passes through the rotating base 2 and is fixedly connected with the slider 2032. The driving rod 2031 is a threaded rod, and the driving rod 2031 is fixedly connected with the slider 2032 through external threads. The spring 2033 is sleeved on the driving rod 2031, and two ends of the spring 2033 are respectively in propping contact with the sliding block 2032 and the inner side wall of the placement groove 201. The spring 2033 pushes the sliding block 2032 to be in propping contact with the rear mirror frame 1, so that the quick disassembly and the more convenient installation can be realized. The slider 2032 is in the shape of a cylinder, and the cross section of the slider 2032 is in the shape of a fan. The fan-shaped intrados is closely attached to the rear mirror frame 1, so that the fixing stability of the sliding block 2032 to the rear mirror frame 1 is guaranteed, meanwhile, the material consumption of the sliding block 2032 is reduced, the weight of the sliding block 2032 is prevented from being too heavy, the driving effect of the spring 2033 is reduced, and the contact compactness between the sliding block 2032 and the rear mirror frame 1 is affected. Simultaneously, the spring 2033 is used for driving the sliding block 2032 to push and limit the rear mirror frame 1, so that the size of the opening of the placing groove 201 can be utilized to the maximum extent, the rear mirror frame 1 with different diameters can be met, and better practicability is achieved. The specifications of the three springs 2033 are the same, the same progress coefficient and the same length are achieved, in the use process, the compression amount among the three springs 2033 is the same, the fact that the rear mirror frame 1 is located at the right center of the placing groove 201 is guaranteed, the stability of the rotating base 2 in the rotating process is guaranteed, and the detection accuracy is good.

Referring to fig. 1 and 2, a connecting rod 202 extending downward is fixed at the bottom of the rotating base 2, and the connecting rod 202 is inserted into the torque meter 3.

In use, the three drive levers 2031 are pulled, compressing the springs 2033 to yield the rear mirror frame 1. The rear mirror frame 1 is placed in the placement groove 201, the driving rod 2031 is loosened, and the spring 2033 pushes the slider 2032 to abut against the rear mirror frame 1. The fluctuation deflector rod 101 compresses the torsion spring 102 on the rear mirror frame 1, the torsion spring 102 applies rotary acting force to the rear mirror frame 1 and the rotary base 2, the rotary base 2 rotates on the torque meter 3 through the connecting rod 202, and therefore torque of the torsion spring 102 is measured, the sliding block 2032 is closely contacted with the rear mirror frame 1, and measurement accuracy is good.

In this embodiment, the torque meter 3 is a prior art, and can satisfy that the rotating base 2 rotates on the torque meter 3, and the rotation amount of the rotating base 2 is displayed.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a moment of torsion measuring mechanism of camera lens torsional spring, the camera lens includes the rear mirror frame, rotatable the being fixed with driving lever on the rear mirror frame, the cover is equipped with the torsional spring on the driving lever, the both ends of torsional spring support with rear mirror frame and driving lever top respectively, its characterized in that, moment of torsion measuring mechanism include rotating base, the standing groove has been seted up on the rotating base, the standing groove internal fixation has two at least slider mechanisms, slider mechanism includes drive assembly and is connected the slider with the drive assembly drive, the slider is located the standing groove, drive assembly drive slider is slided to the center by the edge of standing groove, the rear mirror frame is placed at the standing groove center, the slider supports with the rear mirror frame top, rotating base fixes on the moment of torsion table.

2. The torsion measuring mechanism of a lens torsion spring according to claim 1, wherein: the driving assembly comprises a driving rod and a spring, the driving rod penetrates through the rotating base to be fixedly connected with the sliding block, the spring is sleeved on the driving rod, and two ends of the spring are respectively in propping contact with the sliding block and the inner side wall of the placing groove.

3. The torsion measuring mechanism of a lens torsion spring according to claim 1, wherein: the sliding block is a cylinder, and the cross section of the sliding block is fan-shaped.

4. The torsion measuring mechanism of a lens torsion spring according to claim 1, wherein: the bottom of the rotating base is fixed with a connecting rod extending downwards, and the connecting rod is spliced on the torque meter.

5. The torsion measuring mechanism of a lens torsion spring according to claim 1, wherein: the number of the sliding block mechanisms is three, and the three sliding block mechanisms are sequentially distributed on the periphery of the rear mirror frame.

6. The torsion measuring mechanism of a lens torsion spring according to claim 1, wherein: the rotary base is circular in shape, and the placing groove is a groove with a circular opening.