CN216333156U - Clamping mechanism, positioning carrier and box body center positioning system - Google Patents

Abstract

The embodiment of the application relates to a clamping mechanism, a positioning carrier and a box body center positioning system, relates to the technical field of object loading and positioning equipment, and mainly aims to provide a clamping mechanism, a positioning carrier and a box body center positioning system which are compact in structure. The main technical scheme adopted is as follows: the fixture includes: a sliding track; the at least two oppositely arranged clamp bodies comprise a first clamp body and a second clamp body, and the first clamp body and the second clamp body are slidably arranged on the sliding track; a shaft; the middle part of the rotating rod is rotatably connected to the shaft, the first end of the rotating rod is connected with the first clamp body through a first connecting rod, and the second end of the rotating rod is connected with the second clamp body through a second connecting rod; and the driving component is used for driving the rotating rod to rotate so as to enable the first clamp body and the second clamp body to oppositely or oppositely slide on the sliding track. The technical scheme of the air cylinder and the hydraulic cylinder in the prior art can save the whole space.

Description

Clamping mechanism, positioning carrier and box body center positioning system

Technical Field

The embodiment of the application relates to the technical field of object loading and positioning equipment, in particular to a clamping mechanism, a positioning carrier and a box body center positioning system.

Background

The existing positioning device is realized by adopting the structures of the air cylinder and the hydraulic cylinder, and the whole occupied volume is larger. Because the positioning carrier needs to flow on the line body for operation, if driving elements such as an air cylinder or a motor are directly adopted in the positioning carrier, the complexity and the cost of the mechanism can be increased greatly, and meanwhile, the positioning carrier is limited by a plurality of factors such as the width size of the line body, the narrow internal space and the like, and the mode that the driving elements such as the air cylinder or the motor are directly adopted in the positioning carrier is difficult to realize.

SUMMERY OF THE UTILITY MODEL

In view of the above, embodiments of the present disclosure provide a clamping mechanism, a positioning carrier and a box centering system, and mainly aim to provide a clamping mechanism, a positioning carrier and a box centering system with compact structure.

In order to achieve the above purpose, the embodiments of the present application mainly provide the following technical solutions:

in one aspect, embodiments of the present application provide a clamping mechanism, including:

a sliding track;

the at least two oppositely arranged clamp bodies comprise a first clamp body and a second clamp body, and the first clamp body and the second clamp body are slidably arranged on the sliding track;

a shaft;

the middle part of the rotating rod is rotatably connected to the shaft, the first end of the rotating rod is connected with the first clamp body through a first connecting rod, and the second end of the rotating rod is connected with the second clamp body through a second connecting rod;

and the driving component is used for driving the rotating rod to rotate so as to enable the first clamp body and the second clamp body to oppositely or oppositely slide on the sliding track.

The purpose and the technical problem to be solved by the embodiments of the present application can be further achieved by the following technical measures.

Optionally, the clamping mechanism further includes:

a positioning member;

the two ends of the elastic component are respectively connected with the positioning component and the rotating rod, and under the action of the elastic component, at least two oppositely arranged clamping bodies slide on the sliding rail in a relatively close manner.

Optionally, in the clamping mechanism, the sliding rail includes a transverse sliding rail and a longitudinal sliding rail;

at least two oppositely disposed clamp bodies include: the first clamp body and the second clamp body are slidably arranged on the transverse sliding rail, and the third clamp body and the fourth clamp body are slidably arranged on the longitudinal sliding rail;

the rotating rod comprises a first rotating rod and a second rotating rod which are stacked, the middle part of the first rotating rod and the middle part of the second rotating rod are respectively rotatably connected to the shaft, the first end of the first rotating rod is connected with the first clamp body through the first connecting rod, the second end of the first rotating rod is connected with the second clamp body through the second connecting rod, the first end of the second rotating rod is connected with the third clamp body through the third connecting rod, and the second end of the second rotating rod is connected with the fourth clamp body through the fourth connecting rod;

the driving component is used for driving the first rotating rod and the second rotating rod to rotate so as to enable the first clamp body and the second clamp body to transversely slide on the sliding rail in an opposite mode, and the third clamp body and the fourth clamp body to longitudinally slide on the sliding rail in an opposite mode.

Optionally, in the clamping mechanism, the driving member is a push rod, a first portion of the push rod is used for driving the first rotating rod, a second portion of the push rod is used for driving the second rotating rod, and a second portion of the push rod has a retractable member.

Optionally, in the clamping mechanism, the telescopic component is an adjusting bolt screwed to the push rod body.

In another aspect, an embodiment of the present application provides a positioning carrier, including:

a load-bearing platform having a clamping area;

in the clamping mechanism, the shaft is arranged on the bearing platform, and the at least two oppositely arranged clamping bodies are positioned on the periphery of the clamping area

The purpose and the technical problem to be solved by the embodiments of the present application can be further achieved by the following technical measures.

Optionally, in the positioning carrier, the bearing platform includes a top shell and a bottom shell, the sliding track, the shaft, the rotating rod and the driving component are disposed between the top shell and the bottom shell, the top shell is provided with a sliding hole corresponding to the sliding track, and at least two oppositely disposed clips pass through the sliding hole by the sliding track and extend to the top shell.

Optionally, in the positioning carrier, the bearing platform is provided with a radio frequency electronic tag.

Optionally, in the positioning carrier, the clamping area includes a top box clamping area and a bottom shell clamping area;

the two sets of clamping mechanisms are symmetrically arranged and are respectively arranged in the top box clamping area and the bottom shell clamping area.

In yet another aspect, embodiments of the present application provide a cassette centering system, including:

a transportation track;

the positioning carrier is arranged on the transportation track;

and the control mechanism is arranged at a preset position of the transportation track and used for controlling the driving part.

By the technical scheme, the clamping mechanism, the positioning carrier and the box body center positioning system provided by the technical scheme at least have the following advantages:

according to the technical scheme, the mode that the rotating rod is linked with the clamp bodies which are oppositely arranged is adopted, the driving part drives the rotating rod to rotate, the first clamp body and the second clamp body can slide on the sliding rail in opposite directions or oppositely, and therefore clamping of objects is achieved, and the whole space can be saved for the technical scheme of the air cylinder and the hydraulic cylinder in the prior art.

The foregoing description is only an overview of the embodiments of the present application, and in order to provide a clear understanding of the technical solutions of the embodiments of the present application and to be implemented in accordance with the content of the description, the following detailed description of the preferred embodiments of the present application is provided in conjunction with the accompanying drawings.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic structural diagram of a clamping mechanism provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an upper rod in a clamping mechanism according to an embodiment of the present application;

FIG. 3 is a schematic view of a lower rod in a clamping mechanism according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a driving component of a clamping mechanism provided by an embodiment of the application;

fig. 5 is a schematic structural diagram of a positioning carrier according to an embodiment of the present application;

fig. 6 is a schematic internal structural diagram of a positioning carrier according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a box centering system according to an embodiment of the present application.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.

Fig. 1 to 4 show an embodiment of a clamping mechanism provided in the present application, and referring to fig. 1 to 4, an embodiment of the present application provides a clamping mechanism, which includes:

a slide rail 10;

at least two oppositely arranged clamp bodies 20, including a first clamp body 21 and a second clamp body 22, slidably arranged on the sliding track 10;

a shaft 30;

a rotating rod 40, a middle portion of the rotating rod 40 being rotatably connected to the shaft 30, a first end of the rotating rod 40 being connected to the first clamp body 21 through a first connecting rod 401, and a second end of the rotating rod 40 being connected to the second clamp body 22 through a second connecting rod 402;

and a driving member 50 for driving the rotation of the rotating rod to make the first clamp body 21 and the second clamp body 22 slide on the sliding rail 10 in a facing manner or in a facing manner.

In the technical scheme provided by the embodiment of the present invention, the manner of linking the clamp bodies arranged oppositely by the rotating rod is adopted, and the driving part 50 drives the rotating rod to rotate, so that the first clamp body 21 and the second clamp body 22 can slide oppositely or oppositely on the sliding track 10, thereby clamping an object.

In a specific implementation, the clamping mechanism 200 further includes: the two ends of the elastic component 70 are respectively connected with the positioning component 60 and the rotating rod, and under the action of the elastic component 70, at least two oppositely arranged clamping bodies slide relatively close to each other on the sliding track 10. First, the driving member 50 controls the first clamp body 21 and the second clamp body 22 to slide on the slide rail 10 in the opposite direction, and then the object to be clamped is placed between the first clamp body 21 and the second clamp body 22, the driving action of the driving member 50 on the first clamp body 21 and the second clamp body 22 is canceled, and the object to be clamped is clamped between the first clamp body 21 and the second clamp body 22 by the elastic force of the elastic member 70.

The sliding rail 10 comprises a transverse sliding rail 11 and a longitudinal sliding rail 12; at least two oppositely disposed clamp bodies include: the first clip body 21 and the second clip body 22 are slidably disposed on the transverse slide rail 11, and the third clip body 23 and the fourth clip body 24 are slidably disposed on the longitudinal slide rail 12; the rotating rod comprises a first rotating rod 41 and a second rotating rod 42 which are stacked, the middle part of the first rotating rod 41 and the middle part of the second rotating rod 42 are respectively rotatably connected to the shaft 30, the first end of the first rotating rod 41 is connected to the first clamp body 21 through the first connecting rod 401, the second end of the first rotating rod 41 is connected to the second clamp body 22 through the second connecting rod 402, the first end of the second rotating rod 42 is connected to the third clamp body 23 through the third connecting rod 403, and the second end of the second rotating rod 42 is connected to the fourth clamp body 24 through the fourth connecting rod 404; the driving member 50 is configured to drive the first rotating rod 41 and the second rotating rod 42 to rotate, so that the first clip body 21 and the second clip body 22 slide on the sliding rail 10 in the opposite lateral direction, and the third clip body 23 and the fourth clip body 24 slide on the sliding rail 10 in the opposite longitudinal direction.

The first rotating rod 41 and the second rotating rod 42 are controlled to rotate by the control driving component 50, the first clamp body 21 and the second clamp body 22 slide on the sliding rail 10 in the opposite transverse direction, and the third clamp body 23 and the fourth clamp body 24 slide on the sliding rail 10 in the opposite longitudinal direction, so that the first clamp body 21 and the second clamp body 22 on the two transverse sides, and the third clamp body 23 and the fourth clamp body 24 on the two longitudinal sides can perform center positioning clamping on boxes with different sizes. Compared with the prior art, the center positioning operation of the packing boxes with various sizes can be realized, and the compatibility is higher.

In an embodiment, the driving member 50 may be an electric driving device for driving the rotation of the rotation rod, and the driving member 50 may be a driving member 50 for obtaining external power. For example, the driving member 50 is a push rod, a first portion of which is used for driving the first rotating rod 41, and a second portion of which is used for driving the second rotating rod 42. In the implementation process, the first step of the method,

the first part of the push rod drives the first rotating rod 41 to rotate and the second part of the push rod drives the second rotating rod 42 to rotate by pushing the push rod through an external device, such as an air cylinder, so that the first clamp body 21 and the second clamp body 22 on the two transverse sides and the third clamp body 23 and the fourth clamp body 24 on the two longitudinal sides can perform center positioning clamping on the box bodies with different sizes.

In practice, the first rotating rod 41 and the second rotating rod 42 can be driven by different push rods to realize the proportional adjustment of the distance between the first clamp body 21 and the second clamp body 22 and the distance between the third clamp body 23 and the fourth clamp body 24, so as to adapt to the boxes with different proportional sizes.

In a further embodiment, the second part of the push rod has a telescopic part 51. Specifically, the telescopic member 51 is an adjusting bolt screwed to the push rod body. The adjusting bolt 251 is directed toward the second rotating rod 42 alone, and the distance between the adjusting bolt and the second rotating rod 42 is changed by adjusting the adjusting bolt. In the case where the aspect ratio of the clamped case is changed, the adjustment bolt may be adjusted, so that the adjustment bolt is moved closer to or away from the second rotating bar 42,

since the distance between the first portion of the push rod and the first rotating rod 41 is not changed, the distance between the first clamp body 21 and the second clamp body 22 on the two lateral sides of the clamped object is not adjusted, and the longitudinal third clamp body 23 and the longitudinal fourth clamp body 24 in the clamping area are adjusted, so that the size adjustment of the length-width ratio of the clamping box body is realized.

In addition, the number of the first and second horizontal clamps 21 and 22, the third and fourth vertical clamps 23 and 24 may be determined according to the actual box size, for example, two horizontal clamps (the first and second clamps 21 and 22), two vertical clamps (the third and fourth clamps 23 and 24), or four horizontal clamps and four vertical clamps, wherein the four horizontal clamps are symmetrically arranged two by two, and the four vertical clamps are symmetrically arranged two by two.

Based on the above-mentioned embodiment of the clamping mechanism 200, as shown in fig. 1 to 6, referring to fig. 1 to 6, an embodiment of the positioning carrier provided in the present application provides a positioning carrier, which includes:

a load-bearing platform 100 having a clamping area;

the clamping mechanism 200 includes:

a slide rail 10;

at least two oppositely arranged clamp bodies, including a first clamp body 21 and a second clamp body 22, slidably arranged on the sliding track 10;

a shaft 30;

the middle part of the rotating rod is rotatably connected to the shaft 30, the first end of the rotating rod is connected to the first clamp body 21 through a first connecting rod 401, and the second end of the rotating rod is connected to the second clamp body 22 through a second connecting rod 402;

and a driving member 50 for driving the rotation of the rotating rod to make the first clamp body 21 and the second clamp body 22 slide on the sliding rail 10 in a facing manner or in a facing manner.

The shaft 30 is disposed on the carrying platform 100, and at least two oppositely disposed clamps are disposed on the periphery of the clamping area.

The clamping area of the bearing platform 100 is used for placing a box body to be clamped, and the length and the width of the box body adapted to the clamping area are different corresponding to different mobile phone terminals, wherein the length of the clamping area of the bearing platform 100 can be more than or equal to the maximum length in the adapted box body, and the width of the clamping area of the bearing platform 100 can be more than or equal to the maximum width in the adapted box body.

In an implementation, the carrying platform 100 includes a top case 101 and a bottom case 102, the sliding rail 10, the shaft 30, the rotating rod and the driving component 50 are disposed between the top case 101 and the bottom case 102, the top case 101 is provided with a sliding hole corresponding to the sliding rail 10, and at least two oppositely disposed clips pass through the sliding hole by the sliding rail 10 and extend above the top case 101. The cassette is clamped and placed over the top shell 101 of the load-bearing platform 100.

Generally, for a box body for packaging electronic products such as a mobile phone terminal, a top-bottom box is generally adopted, that is, a box cover and a box body are split, and two parts need to be positioned separately, for this, in some embodiments provided by the present disclosure, the clamping area includes a top box clamping area 104 and a bottom shell clamping area 105; the two sets of clamping mechanisms 200 are symmetrically arranged, and the two sets of clamping mechanisms 200 are respectively arranged in the top box clamping area 104 and the bottom shell clamping area 105.

The two sets of clamping mechanisms 200 use the same driving component 50, taking a push rod as an example, the guiding component for guiding the push rod is a sleeve disposed between the top box clamping area 104 and the bottom shell clamping area 105, and the push rod is slidably disposed in the sleeve.

In the application of the positioning carrier, there may be a plurality of positioning carriers, and in order to distinguish different article carrying platforms, the carrying platform 100 is provided with the radio frequency electronic tag 103, and the radio frequency electronic tag 103 may record data information of different positioning carriers. The positioning carrier may be adapted to the transportation rail 300, and the bottom of the carrying platform 100 is adapted with a bottom support block for cooperating with the transportation rail 300.

Referring to fig. 1 to 7, an embodiment of a positioning carrier according to the present invention is a box centering system according to an embodiment of the present invention, which includes:

a transport track 300;

a positioning carrier, comprising:

a load-bearing platform 100 having a clamping area;

the clamping mechanism 200 includes:

a slide rail 10;

at least two oppositely arranged clamp bodies, including a first clamp body 21 and a second clamp body 22, slidably arranged on the sliding track 10;

a shaft 30;

the middle part of the rotating rod is rotatably connected to the shaft 30, the first end of the rotating rod is connected to the first clamp body 21 through a first connecting rod 401, and the second end of the rotating rod is connected to the second clamp body 22 through a second connecting rod 402;

and a driving member 50 for driving the rotation of the rotating rod to make the first clamp body 21 and the second clamp body 22 slide on the sliding rail 10 in a facing manner or in a facing manner.

The shaft 30 is disposed on the carrying platform 100, and at least two oppositely disposed clamps are disposed on the periphery of the clamping area.

The positioning carrier is arranged on the transportation track 300;

and a control mechanism 400 disposed at a predetermined position of the transport rail 300, for controlling the driving part 50.

According to the technical scheme provided by the embodiment of the utility model, the transportation track 300 can be used for transporting a plurality of positioning carriers simultaneously, when the positioning carriers move to a preset position, the control mechanism 400 at the preset position can be used for controlling the driving part 50 to realize the rotation of the rotating rod, at least two oppositely arranged clamping bodies in the clamping area of the bearing platform 100 are close to each other or far away from each other under the action of the connecting rod, so that the at least two oppositely arranged clamping bodies in the clamping area clamp box bodies with different sizes. The technical scheme of the air cylinder and the hydraulic cylinder in the prior art can save the whole space.

Realize the center location operation of multiple size packing carton, but the compatibility is higher.

Specifically, taking the driving member 50 as a push rod as an example, in the implementation of the control mechanism 400, a push cylinder may be adopted, and the push cylinder is started, so that the slide rod of the push cylinder extends out, the push rod is pushed, and the rotating rod is further pushed to rotate.

A radio frequency card reader can be further disposed on the transportation track 300 for reading data of the radio frequency electronic tag 103 in the carrying platform 100.

In order to conveniently control the position of the positioning vehicle on the transportation rail 300, a blocking cylinder may be further disposed at a predetermined position of the transportation rail 300, and when the blocking cylinder is activated, a blocking member of the blocking cylinder is lifted up to restrict the positioning vehicle at the predetermined position of the transportation rail 300.

The embodiment that this scheme provided through this fixture 200, can realize that 8 position (4 horizontal clamp, 4 vertical clamps) of single-power open and shut the action in step, realize accurate positioning and adapt to the various boxes of different sizes and place, these two kinds of functions, the design not only becomes succinctly compact, and the cost is also reduced a lot, and the price/performance ratio is very high. Compared with other motor or cylinder implementation modes, the positioning carrier needs to flow on the line body for operation, if driving elements such as the cylinder or the motor are directly adopted inside the positioning carrier, complexity and cost of the mechanism can be increased greatly, meanwhile, the positioning carrier is limited by a plurality of factors such as width size of the line body, narrow and small internal space, and the mode that driving elements such as the cylinder or the motor are directly adopted inside the positioning carrier is difficult to implement.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

It will be appreciated that the relevant features of the devices described above may be referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the application, various features of the application are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various application aspects. However, the disclosed apparatus should not be construed to reflect the intent as follows: this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains. Rather, as the following claims reflect, application is directed to less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this application.

Those skilled in the art will appreciate that the components of the apparatus of the embodiments may be adapted and arranged in one or more arrangements different from the embodiments. The components of the embodiments may be combined into one component and, in addition, they may be divided into a plurality of sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the components of any apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination. The various component embodiments of the present application may be implemented in hardware, or in a combination thereof.

It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or components not listed in a claim. The word "a" or "an" preceding a component or element does not exclude the presence of a plurality of such components or elements. The application can be implemented by means of an apparatus comprising several distinct components. In the claims enumerating several means, several of these means may be embodied by one and the same item. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

The foregoing is a preferred embodiment of the present application, which is not intended to be limiting in any way, and any simple modifications, equivalent variations and modifications made to the foregoing embodiment according to the technical spirit of the present application are within the scope of the present application.

Claims (10)

1. A clamping mechanism, comprising:

a sliding track;

the at least two oppositely arranged clamp bodies comprise a first clamp body and a second clamp body, and the first clamp body and the second clamp body are slidably arranged on the sliding track;

a shaft;

the middle part of the rotating rod is rotatably connected to the shaft, the first end of the rotating rod is connected with the first clamp body through a first connecting rod, and the second end of the rotating rod is connected with the second clamp body through a second connecting rod;

and the driving component is used for driving the rotating rod to rotate so as to enable the first clamp body and the second clamp body to oppositely or oppositely slide on the sliding track.

2. The clamping mechanism of claim 1, further comprising:

a positioning member;

the two ends of the elastic component are respectively connected with the positioning component and the rotating rod, and under the action of the elastic component, at least two oppositely arranged clamping bodies slide on the sliding rail in a relatively close manner.

3. Clamping mechanism according to claim 1,

the sliding rail comprises a transverse sliding rail and a longitudinal sliding rail;

at least two oppositely disposed clamp bodies include: the first clamp body and the second clamp body are slidably arranged on the transverse sliding rail, and the third clamp body and the fourth clamp body are slidably arranged on the longitudinal sliding rail;

the rotating rod comprises a first rotating rod and a second rotating rod which are stacked, the middle part of the first rotating rod and the middle part of the second rotating rod are respectively rotatably connected to the shaft, the first end of the first rotating rod is connected with the first clamp body through the first connecting rod, the second end of the first rotating rod is connected with the second clamp body through the second connecting rod, the first end of the second rotating rod is connected with the third clamp body through the third connecting rod, and the second end of the second rotating rod is connected with the fourth clamp body through the fourth connecting rod;

the driving component is used for driving the first rotating rod and the second rotating rod to rotate so as to enable the first clamp body and the second clamp body to transversely slide on the sliding rail in an opposite mode, and the third clamp body and the fourth clamp body to longitudinally slide on the sliding rail in an opposite mode.

4. Clamping mechanism according to claim 3,

the driving part is a push rod, a first part of the push rod is used for driving the first rotating rod, a second part of the push rod is used for driving the second rotating rod, and a telescopic part is arranged on the second part of the push rod.

5. Clamping mechanism according to claim 4,

the telescopic component is an adjusting bolt in threaded connection with the push rod body.

6. A positioning carrier, comprising:

a load-bearing platform having a clamping area;

the clamping mechanism of any one of claims 1-5, wherein the shaft is disposed on the load-bearing platform, and at least two oppositely disposed clamping bodies are disposed at the periphery of the clamping area.

7. The positioning carrier of claim 6,

the bearing platform comprises a top shell and a bottom shell, the sliding tracks, the shafts, the rotating rods and the driving part are arranged between the top shell and the bottom shell, the top shell is provided with sliding holes corresponding to the sliding tracks, and at least two oppositely arranged clamps penetrate through the sliding holes through the sliding tracks and extend to the upper side of the top shell.

8. The positioning carrier of claim 6,

the bearing platform is provided with a radio frequency electronic tag.

9. The positioning carrier of claim 6,

the clamping area comprises a top box clamping area and a bottom shell clamping area;

the two sets of clamping mechanisms are symmetrically arranged and are respectively arranged in the top box clamping area and the bottom shell clamping area.

10. A cassette centering system, comprising:

a transportation track;

the positioning carrier of any one of claims 6-9, disposed on the transportation rail;

and the control mechanism is arranged at a preset position of the transportation track and used for controlling the driving part.

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