CN217776742U - Automatic pressing and positioning mechanism - Google Patents

Abstract

An automatic pressing and positioning mechanism is used for automatic pressing and positioning of a product on a turnover platform, wherein the product is provided with a top cover positioned above and a main body positioned at the bottom; the pressing positioning mechanism comprises a pin arranged aiming at the top cover, a limiting pin arranged aiming at the main body and a limiting boss used for assembling the pin and the limiting pin; the pin is pressed downwards by the top cover from the initial balance state of the pin, so that the pin, the limiting pin and the limiting boss can be converted into a locking state from an unlocking state. The utility model relates to a research and development a mechanism that can realize the automatic pressfitting location of product to can realize locking in step when covering the top cap, take off the synchronous unblock when the top cap, the strong operability, it is efficient, what adopt is the structural design of pure mechanical type, the operation is more stable, firm.

Description

Automatic pressing and positioning mechanism

Technical Field

The utility model relates to a positioning mechanism technical field of product, in particular to can realize automatic pressfitting positioning mechanism of automatic locking, unblock.

Background

The turnover platform is used as a carrier of logistics and has been widely applied for a long time.

On the other hand, in recent years, the energy storage product industry, the electronic industry, the automobile industry, the new energy industry, the photovoltaic industry and the like have been developed rapidly, in the automatic production process of some related products, a turnover platform is required to be used for turnover during production or before leaving a factory, in the application of a product, the product is provided with a top cover positioned above and a main body positioned at the bottom, the top cover is used for covering the whole main body, the structure is similar to a structure with a large top and a small bottom, when the product is fixed on the turnover platform, the main body of the product needs to be placed on the positioning position of the turnover platform, and then the top cover is used for covering the main body. For the positioning of the products, the general positioning mechanism mostly adopts a pure mechanical structure after the main body and the top cover are placed, and the buckle is manually buckled, or adopts an electric limiting structure, and the main body is limited by the electric limiting structure after a worker operates the limiting button.

In the process of realizing the utility model, the inventor finds that the limit of the product in the operation process of the existing products at least has the following problems:

1. the method adopts a general pure mechanical structure, needs workers to manually operate buckling, needs to train the workers, and has the problems that the products which are not completely buckled after finishing and are not inspected by subsequent workers but are not fixed flow into other procedures, so that potential safety hazards exist;

2. adopt electric limit structure, also need the workman to go to operate limit button, the same also needs to carry out corresponding electrical operation training to the workman, increases the personnel selection cost, and electric limit structure own weight is big simultaneously, has increased the turnover platform volume, increases the energy consumption of turnover power of transportation, and maintenance, cost of maintenance are high.

In view of the above, the present invention is directed to solving the above-mentioned problems of the prior art.

SUMMERY OF THE UTILITY MODEL

For the above-mentioned technical problem who solves prior art existence, the utility model provides an automatic pressfitting positioning mechanism.

In order to achieve the above object, the utility model provides an automatic pressfitting positioning mechanism for the automatic pressfitting location of product on the turnover platform, the product has the top cap that is located the top and the main part that is located the bottom, the vertical direction projection of top cap covers the vertical direction projection of main part, its innovation point lies in:

the pressing positioning mechanism comprises a pin arranged aiming at the top cover, a limiting pin arranged aiming at the main body and a limiting boss used for assembling the pin and the limiting pin;

the limiting boss is a structure used for providing positioning guide for the pin and the limiting pin, the limiting boss is fixed on the turnover platform, a vertical positioning guide hole in the vertical direction and a horizontal positioning guide hole in the horizontal direction are formed in the limiting boss, a vertical space is formed in the vertical positioning hole in the extending direction in the vertical direction, a horizontal space is formed in the horizontal positioning guide hole in the horizontal direction, and the vertical space and the horizontal space are communicated with each other and overlapped to form an overlapping space;

the pin is of a structure which bears the downward pressure of the top cover and moves from the upper end to the lower end of the vertical space, and is provided with a pressing action part, a vertical guide part and a first oblique pressing part which are arranged from top to bottom, wherein the pressing action part is positioned at the top and is used for being matched with the lower surface of the top cover, the vertical guide part penetrates through the vertical positioning guide hole, the first oblique pressing part is positioned at the bottom of the vertical guide part, and the first oblique pressing part is provided with a first oblique action surface which is obliquely arranged;

the limiting pin is of a structure which bears the oblique pressure of the pin and moves from the right end to the left end of the horizontal space, the limiting pin is provided with a second oblique pressing part, a horizontal guide part and a limiting action part which are arranged from right to left, the second oblique pressing part is provided with a second oblique action surface which is obliquely arranged, an elastic part which provides reset power for the limiting pin is arranged on the limiting pin, and the elastic part is positioned in the limiting boss and acts on the reset direction of the limiting pin from the left end to the right end;

from the initial balance state of the pin, the top cover presses the pin downwards, so that the pin, the limiting pin and the limiting boss can be converted into a locking state from an unlocking state;

in an initial balance state, the pin is positioned at the upper end of the vertical space, the pressing action part of the pin is exposed upwards, and the limiting pin is positioned at the right end of the horizontal space under the action of the elastic part;

in a locking state, the top cover presses the pin downwards, the pin moves from the upper end to the lower end of the vertical space, the first oblique acting surface at the bottom of the pin abuts against the second oblique acting surface, the bottom of the pin enters the overlapping space, the limiting pin is forced to overcome the elasticity of the elastic piece to enable the limiting pin to move from the right end to the left end of the horizontal space, and the second oblique acting surface of the limiting pin exits from the overlapping space, so that the limiting acting part of the limiting pin abuts against the main body in the horizontal direction, and the main body part is located in the locking state;

in an unlocking state, the top cover upwards releases the pressing between the top cover and the pin, the limiting pin moves from left to right under the action of the elastic force of the elastic piece, the second oblique acting surface on the right side of the limiting pin abuts against the first oblique acting surface, the second oblique acting surface of the limiting pin enters the overlapping space, the pin is forced to overcome the action of gravity to enable the pin to move from the lower end to the upper end of the vertical space, the bottom of the pin exits the overlapping space, and therefore the limiting acting part of the limiting pin is released from limiting with the main body, and the main body part is located in the unlocking state.

The related content of the utility model is explained as follows:

1. the above technical scheme of the utility model, need go specially to lock the action when fixing a position to current product, the condition of unblock action, the design has researched and developed a mechanism that can realize the automatic pressfitting location of product, known by above-mentioned technical scheme, this pressfitting positioning mechanism mainly comprises the pin, the spacer pin, spacing boss, special structural design through to these several essential element, make pressfitting positioning mechanism link with the top cap and the main part of product, in order to realize locking in step when covering the top cap, synchronous unblock when taking off the top cap, agree with the structural feature of this product, at the locking state, when changing between the unblock state, ingenious must be with the conversion in vertical space and horizontal space, let the pin, the spacer pin can be better with the cooperation between the product of treating the pressfitting location, the strong operability, high efficiency, it is humanized, non professional or need not to use through the personnel of training, the commonality is very strong, to specific be similar to accomplish reliably when the turnover in the product, fix a position fixedly. Meanwhile, the adopted structural design is purely mechanical, the operation is more stable and firm, frequent maintenance is not needed, the reliability and stability of each structure are further improved, and the structure is ingenious and low in cost.

2. In the technical scheme, the travel distance of the limit pin in the horizontal space is equal to the left-right width of the orthographic projection of the first oblique action surface on the horizontal plane from the vertical direction; thereby can get better to control spacing stroke, the spacing dynamics that leans on of spacer pin to the main part etc.. Meanwhile, the universality is enhanced, and the automatic pressing and positioning can be carried out on products of different specifications.

3. In the technical scheme, under the unlocking state, the limit pin extends out of the left side of the limit boss for a distance, the universality is increased, the subsequent improvement and the function increase expansibility are realized, and the applicability of the pressing positioning mechanism is wider.

4. In the technical scheme, the part of the limiting pin extending out of the limiting boss is fixed with the cushion pad, and the cushion pad at least partially covers the part facing the left of the limiting action part.

5. In the above technical scheme, one the product corresponds at least and is provided with one pressfitting positioning mechanism, the utility model discloses not use this as the limit, can be one or two or more, can set up to different model specification's this type of characteristics product. Preferably, the four pressing positioning mechanisms are used for pressing and limiting the main body together, so that the stability and the accuracy of pressing and limiting are improved

6. In the technical scheme, the main body is provided with a groove at a position corresponding to the limiting action part of the limiting pin; in a locking state, the limiting action part of the limiting pin extends into the groove; and in an unlocking state, the limiting action part of the limiting pin is withdrawn from the groove. This kind of design can not only let the spacer pin carry on spacingly to the left and right directions of main part, can also all carry on spacingly to the front and back of main part, upper and lower direction, makes pressfitting positioning mechanism agree with the product more.

7. In the technical scheme, the right side of the limiting boss is provided with the pressing plate, and the displacement of the limiting pin from left to right is limited by the pressing plate after the limiting pin is assembled into the limiting boss from right to left.

8. In the above technical solution, the elastic member is a spring, one action surface of the spring abuts against the limit pin, and the other action surface of the spring abuts against the limit boss, so as to provide the reset power for the limit pin.

9. In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, coupled between two elements, or coupled in any other manner that does not materially affect the operation of the device, unless otherwise specifically limited. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

10. In the present invention, the terms "center", "upper", "lower", "axial", "bottom", "left", "right", etc. indicate the orientation or position relation based on the orientation or position assembly relation shown in the drawings, which is only for convenience of describing the present application and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as the limitation of the present application, such as the related description of the spacer pin in the stitching positioning mechanism of the present invention, wherein "left end" and "right end" are only described based on the orientation shown in the drawings, and the positions thereof can be exchanged equally as "right end" and "left end", or adjusted as "front end" and "rear end" according to the different positions where the stitching positioning mechanism is placed.

11. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Because of the application of above-mentioned scheme, compared with the prior art, the utility model has following advantage and effect:

1. the above technical scheme of the utility model, the design new pure mechanical type and can realize automatic locking with the product cooperation, the pressfitting positioning mechanism of unblock, this pressfitting positioning mechanism mainly by the pin, the spacer pin, spacing boss constitutes, through the special construction design to these several essential elements, make pressfitting positioning mechanism link with the top cap and the main part of product, in order can realize locking in step when covering the top cap, synchronous unblock when taking off the top cap, agree with the structural feature of this product, in a locking state, when changing between the unblock state, ingenious must be with the conversion of vertical space and horizontal space, let the pin, the spacer pin can be better with the cooperation between the product of treating the pressfitting location.

2. The above technical scheme of the utility model, the strong operability, it is efficient, humanized, non professional or the personnel that need not through the training can both use, and the commonality is very strong, can accomplish reliably, quick location fixed when the turnover to the product of specific product of being similar to.

3. The above technical scheme of the utility model, owing to need not to go to increase on purpose, design specific locking, unblock action for the product again, change numerous and diverse into simple, improve the reliability, also need not to go to consider again whether accomplish completely spacingly by manual operation, avoid not flowing into other processes by fixed product to stop the emergence of potential safety hazard.

4. The above technical scheme of the utility model, simultaneously, what adopt is the structural design of pure mechanical type, and the operation is more stable, firm, need not frequent maintenance, further promotes reliability, the stability of each structure, and the structure is ingenious, with low costs.

Drawings

Fig. 1 is a schematic view of an overall three-dimensional structure of an automatic pressing and positioning mechanism placed on a turnover platform according to an embodiment of the present invention;

fig. 2 is a schematic three-dimensional structure diagram of an automatic pressing and positioning mechanism according to an embodiment of the present invention;

figure 3 is an exploded view of an automatic pressing and positioning mechanism of the embodiment of the utility model

Fig. 4 is a schematic perspective view of a limiting boss in an automatic pressing and positioning mechanism according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of a pin in an automatic press-fit positioning mechanism according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a limit pin in an automatic press-fit positioning mechanism according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of the turnover platform of the automatic pressing and positioning mechanism of the present invention when a main body is placed thereon;

fig. 8 is a schematic perspective view of the turnover platform of the automatic pressing and positioning mechanism of the present invention after the main body and the top cover are placed thereon;

fig. 9 is a top view of the turnover platform of the automatic pressing and positioning mechanism of the present invention after the main body and the top cover are placed thereon;

FIG. 10 isbase:Sub>A cross-sectional view A-A of FIG. 9;

FIG. 11 is an enlarged view of the portion B of FIG. 10;

fig. 12 is a schematic view of an embodiment of the present invention in an unlocked state;

fig. 13 is a schematic view of an embodiment of the present invention in a locked state.

Fig. 14 is a schematic diagram of the space conversion on the limiting boss according to the embodiment of the present invention.

The drawings are shown in the following parts:

1. a pressing positioning mechanism;

11. a pin; 111. a pressing action part; 112. a vertical guide portion; 113. a first oblique pressing part; 1131. a first inclined action surface;

12. a spacing pin; 121. a limiting action part; 122. a horizontal guide portion; 123. a second oblique pressing part; 1231. a second inclined action surface; 124. an elastic member; 125. a cushion pad;

13. a limiting boss; 131. a vertical positioning guide hole; 1310. a vertical space; 132. horizontally positioning a guide hole; 1320. a horizontal space; 1330. a coincidence space;

14. pressing a plate;

2. producing a product; 21. a top cover; 22. a main body; 221. a groove;

3. and (4) a turnover platform.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

As shown in fig. 1 to 14, the embodiment of the present invention provides an automatic pressing and positioning mechanism, which is used for automatic pressing and positioning of a product 2 on a turnover platform 3, as shown in fig. 7 to 10, the product 2 has a top cover 21 located above and a main body 22 located at the bottom, and the vertical projection of the top cover 21 covers the vertical projection of the main body 22.

In the embodiment of the present invention, the pressing and positioning mechanism 1 is designed for the product 2 with such a specific structure, and the pressing and positioning mechanism 1 includes a pin 11 provided for the top cover 21, a limit pin 12 provided for the main body 22, and a limit boss 13 for assembling the pin 11 and the limit pin 12;

the limiting boss 13 is a structure for providing positioning and guiding for the pin 11 and the limiting pin 12, the limiting boss 13 is fixed on the revolving platform 3, the limiting boss 13 is provided with a vertical positioning guide hole 131 in the vertical direction and a horizontal positioning guide hole 132 in the horizontal direction, as shown in fig. 14, the vertical positioning hole has a vertical space 1310 in the extending direction of the vertical direction, the horizontal positioning guide hole 132 has a horizontal space 1320 in the horizontal direction, and the vertical space 1310 and the horizontal space 1320 are communicated with each other and overlapped to form an overlapping space 1330;

the pin 11 is a structure which bears the downward pressure of the top cover 21 and is displaced from the upper end to the lower end of the vertical space 1310, the pin 11 has a pressing action part 111, a vertical guide part 112 and a first oblique pressing part 113 which are arranged from top to bottom, the pressing action part 111 is positioned at the top and is used for matching with the lower surface of the top cover 21, the vertical guide part 112 passes through the vertical positioning guide hole 131 and can slide up and down in the vertical positioning guide hole 131, the first oblique pressing part 113 is positioned at the bottom of the vertical guide part 112, and the first oblique pressing part 113 is provided with a first oblique action surface 1131 which is arranged obliquely;

the limit pin 12 is a structure that bears the oblique pressure of the pin 11 and moves from the right end to the left end of the horizontal space 1320, the limit pin 12 has a second oblique pressing part 123, a horizontal guiding part 122 and a limit action part 121, which are arranged from right to left, the second oblique pressing part 123 is provided with a second oblique action surface 1231, which is arranged obliquely, the horizontal guiding part 122 passes through the horizontal positioning guiding hole 132 and can horizontally slide in the horizontal positioning guiding hole 132, the limit pin 12 is provided with an elastic part 124 for providing reset power for the limit pin 12, and the elastic part 124 is located in the limit boss 13 and acts on the reset direction of the limit pin 12 from the left end to the right end.

From the initial balance state of the pin 11, the top cover 21 presses the pin 11 downwards, so that the pin 11, the limit pin 12 and the limit boss 13 can be converted into a locking state from an unlocking state; the initial equilibrium state, the locked state, and the unlocked state will be described in detail below.

In the initial equilibrium state, as shown in fig. 2, the pin 11 is located at the upper end of the vertical space 1310, the pressing action part 111 of the pin 11 is exposed upwards, and the stopper pin 12 is located at the right end of the horizontal space 1320 under the action of the elastic member 124;

in the locked state, as shown in fig. 13, the top cover 21 presses the pin 11 downward, the pressing position of the top cover 21 is indicated by the arrow from top to bottom in fig. 1, the pin 11 is displaced from the upper end to the lower end of the vertical space 1310, the first oblique acting surface 1131 at the bottom of the pin 11 abuts against the second oblique acting surface 1231, the bottom of the pin 11 enters the overlapping space 1330, the limit pin 12 is forced to overcome the elastic force of the elastic member 124 so that the limit pin 12 is displaced from the right end to the left end of the horizontal space 1320, the second oblique acting surface 1231 of the limit pin 12 exits from the overlapping space 1330, so that the limit acting portion 121 of the limit pin 12 abuts against the main body 22 from the horizontal direction, and the main body 22 is partially located in the locked state;

in the unlocked state, as shown in fig. 12, the top cover 21 releases the pressing between the top cover 21 and the pin 11 upwards, the limit pin 12 moves from left to right under the elastic force of the elastic member 124, the second inclined acting surface 1231 on the right side of the limit pin 12 abuts against the first inclined acting surface 1131, the second inclined acting surface 1231 of the limit pin 12 enters the overlapping space 1330, the pin 11 is forced to overcome the gravity action to displace the pin 11 from the lower end to the upper end of the vertical space 1310, and the bottom of the pin 11 exits from the overlapping space 1330, so that the limiting part 121 of the limit pin 12 releases the limitation with the main body 22, and the main body 22 is partially located in the unlocked state.

Through the implementation of the above embodiment, aiming at the situation that the locking action and the unlocking action need to be specially carried out when the existing product 2 is positioned, a mechanism capable of realizing the automatic pressing and positioning of the product 2 is designed and researched, and the technical scheme is known that the pressing and positioning mechanism 1 mainly comprises a pin 11, a limiting pin 12 and a limiting boss 13, through the special structural design of the main components, the pressing and positioning mechanism 1 is linked with a top cover 21 and a main body 22 of the product 2 so as to realize synchronous locking when the top cover 21 is covered and synchronous unlocking when the top cover 21 is removed, the structural characteristics of the product 2 are matched, when the locking state and the unlocking state are switched, the vertical space 1310 and the horizontal space 1320 are ingeniously switched, so that the pin 11 and the limiting pin 12 can be better matched with the product 2 to be pressed and positioned, the operability is high, the efficiency is high, the humanization is realized, the product can be used by non-professional personnel or personnel without training, the universality is very strong, and when a specific product similar to the product 2 can be quickly circulated and positioned. Meanwhile, the adopted structural design is purely mechanical, the operation is more stable and firm, frequent maintenance is not needed, the reliability and stability of each structure are further improved, and the structure is ingenious and low in cost.

In the embodiment of the present invention, the distance of the limit pin 12 in the horizontal space 1320 is equal to the left-right width of the first oblique acting surface 1131, which is orthographically projected on the horizontal plane from the vertical direction; thereby being capable of better controlling the limit stroke, the limit abutting force and the like of the limit pin 12 on the main body 22. Meanwhile, the universality is enhanced, and the automatic pressing and positioning can be carried out on products of different specifications.

The embodiment of the utility model provides an in, under the unblock state, spacing boss 13 one section distance is stretched out from the left side to spacer pin 12, increases the commonality to and follow-up improvement, the expansibility of increasing the function, make this pressfitting positioning mechanism 1's suitability wider. More specifically, the part of the limit pin 12 extending out of the limit boss 13 is fixed with a cushion pad 125, and the cushion pad 125 at least partially covers the part facing the left of the limit action part 121, so that the design can facilitate the assembly of the pressing and positioning mechanism 1 to avoid interference, and secondly avoid the damage of the side wall surface of the main body 22 due to stress when the limit pin 12 performs pressing and limiting on the main body 22, thereby increasing the stability and reliability.

The embodiment of the utility model provides an in, one product 2 corresponds at least and is provided with one pressfitting positioning mechanism 1, the utility model discloses do not use this as the limit, can be one or two or more, can set up to different model specification's this type of characteristics product. Can be as shown in figure 7, the embodiment of the utility model provides an adopt one dispose four on the product 2 pressfitting positioning mechanism 1, two pressfitting positioning mechanism 1 comes to carry out the pressfitting jointly to main part 22 spacing, increases spacing stability, the accuracy of pressfitting. As shown in fig. 1, a press-fit positioning mechanism 1 is arranged on the turnover platform, and other positioning positions are formed by bulges to clamp the product, so that press-fit positioning of the product can be smoothly completed.

In addition, a pressing plate 14 is arranged on the right side of the limiting boss 13, and after the limiting pin 12 is assembled into the limiting boss 13 from right to left, the pressing plate 14 limits the displacement of the limiting pin 12 from left to right. Further preferably, the elastic member 124 is a spring, and one acting surface of the spring abuts against the limit pin 12, and the other acting surface of the spring abuts against the limit boss 13, so as to provide the reset power for the limit pin 12.

As a further preferred feature, as shown in fig. 11, the main body 22 is provided with a groove 221 at a position corresponding to the position limiting action part 121 of the limiting pin 12; in the locked state, the limiting action part 121 of the limiting pin 12 extends into the groove 221; in the unlocked state, the stopper 121 of the stopper pin 12 is withdrawn from the groove 221. This kind of design can not only let the spacer pin carry on spacingly to the left and right directions of main part, can also all carry on spacingly to the front and back of main part, upper and lower direction, spacing effect is better, more accurate, more firm, more stable, makes pressfitting positioning mechanism agree with the product more.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims (8)

1. An automatic stitching positioning mechanism for automatic stitching positioning of a product (2) on a revolving platform (3), said product (2) having a top cover (21) located above and a main body (22) located at the bottom, the vertical projection of said top cover (21) covering the vertical projection of said main body (22), characterized in that:

the pressing positioning mechanism (1) comprises a pin (11) arranged aiming at the top cover (21), a limiting pin (12) arranged aiming at the main body (22) and a limiting boss (13) used for assembling the pin (11) and the limiting pin (12);

the limiting boss (13) is used for providing a positioning guide structure for the pin (11) and the limiting pin (12), the limiting boss (13) is fixed on the turnover platform (3), a vertical positioning guide hole (131) in the vertical direction and a horizontal positioning guide hole (132) in the horizontal direction are formed in the limiting boss (13), a vertical space (1310) is formed in the vertical positioning guide hole in the extending direction of the vertical direction, a horizontal space (1320) is formed in the horizontal direction of the horizontal positioning guide hole (132), and the vertical space (1310) and the horizontal space (1320) are communicated with each other and overlapped to form an overlapping space (1330);

the pin (11) is of a structure which bears the downward pressure of the top cover (21) and is displaced from the upper end to the lower end of the vertical space (1310), the pin (11) is provided with a pressing action part (111), a vertical guide part (112) and a first oblique pressing part (113) which are arranged from top to bottom, the pressing action part (111) is positioned at the top and is used for being matched with the lower surface of the top cover (21), the vertical guide part (112) penetrates through the vertical positioning guide hole (131), the first oblique pressing part (113) is positioned at the bottom of the vertical guide part (112), and a first oblique action surface (1131) which is obliquely arranged is arranged on the first oblique pressing part (113);

the limiting pin (12) is of a structure which bears the oblique pressure of the pin (11) and moves from the right end to the left end of the horizontal space (1320), the limiting pin (12) is provided with a second oblique pressing part (123), a horizontal guiding part (122) and a limiting action part (121) which are arranged from right to left, a second oblique action surface (1231) which is arranged obliquely is arranged on the second oblique pressing part (123), an elastic part (124) which provides resetting power for the limiting pin (12) is configured on the limiting pin (12), and the elastic part (124) is positioned in the limiting boss (13) and acts on the resetting direction of the limiting pin (12) from the left end to the right end;

from the initial balance state of the pin (11), the top cover (21) presses the pin (11) downwards, so that the pin (11), the limit pin (12) and the limit boss (13) can be converted into a locking state from an unlocking state;

in an initial balance state, the pin (11) is positioned at the upper end of the vertical space (1310), the pressing action part (111) of the pin (11) is exposed upwards, and the limiting pin (12) is positioned at the right end of the horizontal space (1320) under the action of the elastic piece (124);

in a locking state, the top cover (21) presses the pin (11) downwards, the pin (11) moves from the upper end to the lower end of the vertical space (1310), the first inclined action surface (1131) at the bottom of the pin (11) abuts against the second inclined action surface (1231), the bottom of the pin (11) enters the superposition space (1330), the limiting pin (12) is forced to overcome the elastic force of the elastic piece (124) to enable the limiting pin (12) to move from the right end to the left end of the horizontal space (1320), and the second inclined action surface (1231) of the limiting pin (12) exits from the superposition space (1330), so that the limiting action part (121) of the limiting pin (12) abuts against the main body (22) from the horizontal direction, and the main body (22) is partially located in the locking state;

in an unlocking state, the top cover (21) upwards releases the pressing between the top cover (21) and the pin (11), the limiting pin (12) moves from left to right under the action of the elastic force of the elastic piece (124), the second oblique acting surface (1231) on the right side of the limiting pin (12) abuts against the first oblique acting surface (1131), the second oblique acting surface (1231) of the limiting pin (12) enters the overlapping space (1330), the pin (11) is forced to overcome the action of gravity to enable the pin (11) to move from the lower end to the upper end of the vertical space (1310), and the bottom of the pin (11) exits from the overlapping space (1330), so that the limiting acting part (121) of the limiting pin (12) releases the limiting with the main body (22), and the main body (22) is partially located in the unlocking state.

2. An automatic press-fit positioning mechanism according to claim 1, wherein: the travel distance of the limiting pin (12) in the horizontal space (1320) is equal to the left-right width of the first inclined action surface (1131) in the vertical direction orthographic projection on the horizontal plane.

3. An automatic press-fit positioning mechanism according to claim 1, wherein: in the unlocking state, the limiting pin (12) extends out of the limiting boss (13) from the left side for a certain distance.

4. An automatic press-fit positioning mechanism according to claim 2, wherein: a cushion pad (125) is fixed at the part of the limit pin (12) extending out of the limit boss (13), and the cushion pad (125) at least partially covers the part facing the left of the limit action part (121).

5. An automatic press-fit positioning mechanism according to claim 1, wherein: and at least one pressing and positioning mechanism (1) is correspondingly arranged on one product (2).

6. An automatic press-fit positioning mechanism according to claim 5, wherein: the main body (22) is provided with a groove (221) at the corresponding position of the limiting action part (121) of the limiting pin (12); in the locking state, the limiting action part (121) of the limiting pin (12) extends into the groove (221); in the unlocked state, the limiting action part (121) of the limiting pin (12) is withdrawn from the groove (221).

7. An automatic press-fit positioning mechanism according to claim 1, wherein: a pressing plate (14) is arranged on the right side of the limiting boss (13), and the limiting pin (12) is limited in displacement from left to right by the pressing plate (14) after the limiting pin (12) is assembled into the limiting boss (13) from right to left.

8. An automatic press-fit positioning mechanism according to claim 1, wherein: the elastic piece (124) is a spring, one action surface of the spring is abutted against the limiting pin (12), and the other action surface of the spring is abutted against the limiting boss (13) so as to provide reset power for the limiting pin (12).

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