CN212812206U

CN212812206U - Pressing plate structure

Info

Publication number: CN212812206U
Application number: CN202022014197.8U
Authority: CN
Inventors: 杜祥哲; 聂星; 秦连熠; 张盼良
Original assignee: Bozhon Precision Industry Technology Co Ltd
Current assignee: Bozhon Precision Industry Technology Co Ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-03-26
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses a clamp plate structure belongs to pressfitting frock technical field. The clamp plate structure includes the clamp plate and locates on the clamp plate: the first pressure maintaining mechanism comprises a through hole arranged on the pressure plate and a pressure cylinder arranged in the through hole in a sliding manner, a first limiting table is arranged in the through hole, a first elastic piece is arranged between the pressure cylinder and the first limiting table, and the first elastic piece is configured to enable the pressure cylinder to always have the tendency of pressing the first part and the second part which are mutually overlapped in a pressing manner; and the second pressure maintaining mechanism comprises a first fixed seat and a pressure rod arranged on the first fixed seat in a sliding manner, a second elastic piece is arranged between the pressure rod and the first fixed seat, and the second elastic piece is configured to enable the pressure rod to always have the tendency of pressing down the first part during pressing. The utility model provides a clamp plate structure can effectively improve the assembly efficiency and the quality of product.

Description

Pressing plate structure

Technical Field

The utility model relates to a pressfitting frock technical field especially relates to a clamp plate structure.

Background

In the production process of electronic products, electronic elements are required to be assembled on a main board of a circuit board, the electronic elements are firstly stacked on the circuit board, welding flux is arranged between the electronic elements and the circuit board, the two stacked parts are pressed by a pressing device, meanwhile, laser is injected to melt the welding flux, the electronic elements and the circuit board are welded together, and the assembling process is completed.

However, when the arrangement of the electronic elements on the circuit board is dispersed, the electronic elements are only overlapped with the circuit board at limited positions, and the existing pressing device cannot realize stable pressing of the dispersed overlapped positions, so that the assembly process cannot be smoothly carried out, and the assembly efficiency and quality are reduced.

Therefore, it is desirable to provide a platen structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clamp plate structure can realize that the folding of dispersion establishes the stable pressure of treating the lamination assembly of position department and establishes, improves assembly efficiency and quality.

In order to realize the purpose, the following technical scheme is provided:

the utility model provides a clamp plate structure for realize the pressfitting of first part and the second part that the dispersion was folded and is located on the first part, the clamp plate structure include the clamp plate with locate on the clamp plate:

the first pressure maintaining mechanism comprises a through hole arranged on the pressure plate and a pressure cylinder arranged in the through hole in a sliding manner, a first limiting table is arranged in the through hole, a first elastic piece is arranged between the pressure cylinder and the first limiting table, and the first elastic piece is configured to enable the pressure cylinder to always have the tendency of pressing the first part and the second part which are mutually overlapped in a pressing manner;

and the second pressure maintaining mechanism comprises a first fixed seat and a pressure rod arranged on the first fixed seat in a sliding manner, a second elastic piece is arranged between the pressure rod and the first fixed seat, and the second elastic piece is configured to enable the pressure rod to always have the tendency of pressing down the first part during pressing.

Further, the pressing plate comprises a pressing plate body and a cover plate, a groove is formed in the top of the pressing plate body, and the cover plate is covered in the groove; the cover plate is provided with a first mounting hole, the pressing plate body is provided with a second mounting hole, and the first mounting hole and the second mounting hole are communicated with each other to form the through hole;

the hole wall of the first mounting hole is provided with the first limiting table, the top end of the pressing cylinder is provided with a first boss, and the first elastic piece is arranged between the first boss and the first limiting table.

Further, establish the spacing platform of second on the pore wall of second mounting hole, first boss can with the spacing platform butt of second realizes pressing a descending spacing of section of thick bamboo.

Furthermore, a first arc-shaped groove is formed in the outer wall of the pressing cylinder, a second arc-shaped groove is formed in the hole wall of the through hole, the first arc-shaped groove and the second arc-shaped groove form a cylindrical groove body, and a limiting pin is inserted into the cylindrical groove body and used for limiting rotation of the pressing cylinder.

Furthermore, the pressure lever comprises a lever body and a pressure head arranged at the bottom end of the lever body, the lever body is arranged on the first fixed seat in a sliding manner, and the second elastic piece is arranged between the top surface of the pressure head and the bottom surface of the first fixed seat;

and a silica gel gasket is arranged on the bottom surface of the pressure head.

Further, the pressing plate structure further comprises a third pressure maintaining mechanism, the third pressure maintaining mechanism comprises a second fixed seat arranged on the pressing plate and an elastic needle arranged on the second fixed seat, and the elastic needle is configured to have a tendency of pressing down the first part all the time during pressing.

Further, the pressing plate structure further comprises a first cooling mechanism, the first cooling mechanism comprises a first air seat arranged at the bottom of the pressing plate, and a first air inlet and a first air outlet which are arranged on the first air seat, a first air cavity is arranged in the first air seat, the first air inlet and the first air outlet are communicated with the first air cavity, and the first air outlet faces the first pressure maintaining mechanism.

Further, the platen structure further comprises a second cooling mechanism, the second cooling mechanism comprises a second air cavity arranged on the platen body and a second air outlet arranged on the bottom surface of the platen body, and the second air outlet faces the first pressure maintaining mechanism;

the top surface of the pressing plate body is provided with a vent groove, the cover plate is provided with a second air inlet, and the vent groove is communicated with the second air inlet and the second air cavity.

Further, the first pressure holding mechanism is provided with a plurality of rows; the second cooling mechanism is arranged between two adjacent rows of the first pressure-maintaining mechanisms;

the pressure plate body is provided with an accommodating groove, a second air seat is arranged in the accommodating groove, and the second air cavity is arranged on the second air seat; the bottom of the second air seat is of a conical structure, and the second air outlet is formed in each of two side edges of the conical structure.

Further, the bottom of apron sets up the limiting plate, set up the spacing platform of third on the cell wall of holding tank, the second gas holder includes the gas holder body and locates the second boss on gas holder body top, the second boss butt in the spacing platform of third with between the limiting plate.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides an among the clamp plate structure, first pressurize mechanism can only press to having the second part to fold the position of establishing and establish, guarantees that the folding of dispersion establishes the position and obtains effective pressfitting, and the cooperation through second pressurize mechanism ensures the stability of first part when the pressfitting simultaneously, has effectively improved the assembly efficiency and the quality of product.

Drawings

Fig. 1 is a schematic structural diagram of a platen structure in an embodiment of the present invention at a first viewing angle;

fig. 2 is a schematic structural diagram of a platen structure at a second viewing angle according to an embodiment of the present invention;

fig. 3 is a top view of a platen structure according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4 at C;

fig. 6 is a schematic structural view of a pressing cylinder according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a pressing plate structure with a cover plate removed according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a cover plate according to an embodiment of the present invention;

fig. 9 is a structural schematic view of a third pressure maintaining mechanism in the embodiment of the present invention;

fig. 10 is a schematic structural view of another third pressure maintaining mechanism according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a third pressure maintaining mechanism according to an embodiment of the present invention.

Reference numerals:

10. pressing a plate; 11. a pressing plate body; 12. a cover plate; 13. a through hole; 111. a groove; 112. a second mounting hole; 113. accommodating grooves; 114. a vent channel; 115. a communicating groove; 121. a first mounting hole; 122. a limiting plate; 1121. a second limit table; 1211. a first limit table; 1131. a third limiting table; A. a working area;

20. a first pressure retention mechanism; 21. pressing the cylinder; 211. a first boss; 212. a first arc-shaped slot;

30. a second pressure maintaining mechanism; 31. a first fixed seat; 32. a pressure lever; 321. a rod body; 322. a pressure head; 33. a silica gel gasket; 34. a linear bearing; 35. a limiting gasket; 36. a screw; 37. mounting a plate;

40. a third pressure maintaining mechanism; 41. a second fixed seat; 42. a needle is flicked;

50. a first cooling mechanism; 51. a first air seat; 52. a first air inlet; 53. a first air outlet;

60. a second cooling mechanism; 61. a second air seat; 62. a second air cavity; 63. a second air inlet; 64. a second air outlet; 611. an air seat body; 612. a second boss.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The embodiment provides a pressing plate structure for realizing the pressing of a component to be pressed, wherein the component to be pressed comprises a first part and a second part which is dispersedly stacked on the first part; referring to fig. 1 to 3, the platen structure includes a platen 10 and a first pressure maintaining mechanism 20 and a second pressure maintaining mechanism 30 provided on the platen 10; referring to fig. 1, 4, 5 and 7, the first pressure maintaining mechanism 20 includes a through hole 13 opened on the pressure plate 10 and a pressure cylinder 21 slidably disposed in the through hole 13, a first limit stop 1211 is disposed in the through hole 13, and a first elastic member (not shown in the figure) is disposed between the pressure cylinder 21 and the first limit stop 1211, and the first elastic member is configured to make the pressure cylinder 21 always have a tendency to press down the first part and the second part stacked on each other when pressing; referring to fig. 1, 2 and 4, the second pressure maintaining mechanism 30 includes a first fixed seat 31 disposed on the pressure plate 10 and a pressing rod 32 slidably disposed on the first fixed seat 31, and a second elastic member (not shown) is disposed between the pressing rod 32 and the first fixed seat 31, and the second elastic member is configured to make the pressing rod 32 have a tendency to press down the first component at all times during pressing. Optionally, the first and second resilient members are both compression springs.

When the pressing device is specifically implemented, the pressing plate structure is arranged above the jacking mechanism, and the component to be pressed is arranged between the pressing plate structure and the jacking mechanism; when carrying out the pressfitting operation, climbing mechanism upwards jack-up waits to pressfitting subassembly and clamp plate 10, and then presses a section of thick bamboo 21 and depression bar 32 upward movement compression first elastic component and second elastic component respectively, and first elastic component and second elastic component provide reaction force and make a section of thick bamboo 21 and depression bar 32 push down, have guaranteed respectively that the steady pressure to first part is established and the steady pressure that first part and second part overlap the department of establishing is established. Of course, in some other implementations, a pressing mechanism may be further provided, and the pressing mechanism presses the pressing plate 10 downward to cooperate with the jacking mechanism to press the component to be pressed; of course, for example, a single jacking mechanism may be used to achieve the pressing in this embodiment. For the components to be pressed, in which the second parts are dispersedly stacked on the first parts, in the pressing plate structure provided in this embodiment, the first pressure retaining mechanism 20 can only perform pressing on the stacked positions of the second parts, so as to ensure that the dispersed stacked positions are effectively pressed, and meanwhile, the stability of the first parts during pressing is ensured by the cooperation of the second pressure retaining mechanism 30, so that the assembly efficiency and quality of the product are effectively improved; the pressing plate structure is simple in structure and convenient to manufacture. It should be noted that, referring to fig. 2, when the pressing cylinder 21 and the pressing rod 32 are not pressed, the pressing rod 32 and the pressing cylinder 21 are both protruded from the bottom surface of the pressing plate 10, so that the components to be pressed can be abutted against the pressing cylinder 21 and the pressing rod 32 to smoothly complete the pressing operation. After pressing, laser is injected from the through hole 13 on the pressing plate 10 to reach the overlapping position of the assembly to be pressed, and the solder between the first part and the second part is melted, so that the welding connection of the two parts is realized.

Specifically, the first part can be divided into a welding area and a non-welding area, and the second part is dispersedly overlapped on the welding area of the first part; accordingly, referring to fig. 1, a working area a is disposed on the pressing plate 10, the working area a conforms to a welding area of the first component, the first pressure maintaining mechanism 20 is disposed in the working area a of the pressing plate 10, and the second pressure maintaining mechanism 30 is disposed outside the working area a of the pressing plate 10, so as to prevent the first pressure maintaining mechanism 20 and the second pressure maintaining mechanism 30 from interfering with each other. In this embodiment, the component to be pressed can be selected as a keyboard, and the first part and the second part are a circuit board of the keyboard and a metal contact plate thereon, respectively, wherein the metal contact plate corresponds to a key of the keyboard one to one, and therefore, a plurality of metal plates are arranged and need to be dispersedly connected to the circuit board. Because the keyboard is generally in a rectangular structure, the first part is also in a rectangular structure, the welding area on the first part and the working area A of the pressure plate 10 are also in a rectangular structure, and the length and the width of the working area A of the pressure plate 10 can be set to be equivalent to those of the welding area of the first part, so that the design of the pressure plate structure is optimized, and the size of the pressure plate 10 is compressed. Further, the second pressure maintaining mechanism 30 is protruded on the outer edge of the pressure plate 10, and is used for pressing the non-welding area of the first part. The number of the first pressure maintaining mechanisms 20 on the pressure plate 10 is correspondingly set according to the number of the metal sheets required to be welded on the circuit board of the keyboard, so that the first pressure maintaining mechanisms 20 at each key are ensured to be pressed, and the pressing and assembling quality of products is improved. Further, four second pressure maintaining mechanisms 30 are provided, and are distributed on the pressing plate 10 in a rectangular shape. Specifically, optionally, the four second pressure maintaining mechanisms 30 are distributed outside the welding area of the first part in a rectangular shape to be closer to the welding area, so as to ensure a good pressing state of the welding area.

Referring to fig. 1, 7 and 8, the pressing plate 10 includes a pressing plate body 11 and a cover plate 12 disposed on the pressing plate body 11, a groove 111 is formed at the top of the pressing plate body 11, and the cover plate 12 is disposed in the groove 111; referring to fig. 5, a first mounting hole 121 is formed in the cover plate 12, a second mounting hole 112 is formed in the pressing plate body 11, and the first mounting hole 121 and the second mounting hole 112 are communicated with each other to form a through hole 13. The hole wall of the first mounting hole 121 is provided with a first limiting platform 1211, the hole wall of the second mounting hole 112 is provided with a second limiting platform 1121, the top end of the pressing cylinder 21 is provided with a first boss 211, the first elastic element is arranged between the first boss 211 and the first limiting platform 1211, and the pressing cylinder 21 is prevented from being separated from the pressing plate 10 through the abutting joint of the first boss 211 and the second limiting platform 1121. Through the arrangement of the cover plate 12, the pressing cylinder 21 with the first boss 211 can be sleeved into the second mounting hole 112 of the pressing plate body 11 from top to bottom, and the first elastic member is mounted and upwardly limited through the first limit stop 1211 of the cover plate 12, so that the parts of the first pressure maintaining mechanism 20 are separately processed and assembled. Optionally, the cover plate 12 and the pressure plate body 11 are fastened by a bolt structure.

Further, referring to fig. 6, a first arc-shaped groove 212 is formed in the outer wall of the pressing cylinder 21, a second arc-shaped groove is formed in the hole wall of the through hole 13, the first arc-shaped groove 212 and the second arc-shaped groove form a complete cylindrical groove body, and a limit pin is inserted in the cylindrical groove body, so that the purpose of limiting rotation of the pressing cylinder 21 in the through hole 13 is achieved, and the pressing cylinder 21 can be guaranteed to be stably pressed in the vertical direction.

Specifically, referring to fig. 1, the pressing rod 32 includes a rod 321 and a pressing head 322 disposed at a bottom end of the rod 321, the rod 321 and the pressing head 322 are of an inverted T-shaped structure, the rod 321 is slidably disposed on the first fixing seat 31, and two free ends of the second elastic member are respectively connected to a top surface of the pressing head 322 and a bottom surface of the first fixing seat 31. Optionally, referring to fig. 2 and 4, a silicone gasket 33 is disposed on a bottom surface of the pressing head 322, so as to reduce an impact when the pressing head 322 contacts with the component to be pressed, and prevent the pressing head 322 from crushing the first part. Further optionally, the rod 321 is slidably connected to the first fixing seat 31 through a linear bearing 34. Further, the top of the rod body 321 is provided with a limiting gasket 35, and the limiting gasket 35 is abutted to the top of the first fixing seat 31 to limit the downward direction of the pressing rod 32, so that the pressing rod 32 is prevented from being separated from the first fixing seat 31. Specifically, the limiting shim 35 realizes the limiting by abutting with the linear bearing 34. Further, the linear bearing 34 is disposed on the first fixing seat 31 through the mounting plate 37; the limiting washer 35 is fixed on the top end of the pressure rod 32 through a screw 36.

Referring to fig. 2 and 3, the pressing plate structure further includes a third pressure maintaining mechanism 40 disposed in the working area a of the pressing plate 10, the third pressure maintaining mechanism 40 includes a second fixing seat 41 disposed on the pressing plate 10 and an elastic pin 42 disposed on the second fixing seat 41, and the elastic pin 42 is configured to have a tendency of pressing down the first part all the time during pressing so as to maintain tight contact with the first part. The third pressure maintaining mechanism 40 is used for pressing the welding area of the first part, and is beneficial to ensuring the overall stable pressing of the assembly to be pressed on the welding area. The arrangement of the third pressure maintaining mechanism 40 on the pressure plate 10 needs to avoid the first pressure maintaining mechanism 20 so as not to interfere the welding connection of the components to be pressed at the overlapping position; for keyboard products, the third pressure maintaining mechanism 40 may be disposed at some positions not used in the press-fit welding process, and the number and distribution of the elastic pins 42 on the third pressure maintaining mechanism 40 may be adaptively changed according to the shape and structure of the positions. Referring to fig. 9 to 11, the present embodiment provides three different forms of the third pressure holding mechanism 40.

Because the input energy of laser welding is great, if the heat after the welding can not be dissipated in time, the cooling speed of the welding spot can be reduced, and the efficiency of press fitting assembly is further influenced. Therefore, referring to fig. 2, the platen structure further includes a first cooling mechanism 50, the first cooling mechanism 50 includes a first air seat 51 disposed at the bottom of the platen 10, and a first air inlet 52 and a first air outlet 53 disposed on the first air seat 51, a first air cavity is disposed inside the first air seat 51, both the first air inlet 52 and the first air outlet 53 are communicated with the first air cavity, external air enters the first air cavity from the first air inlet 52 and is blown out from the first air outlet 53, the first air outlet 53 is disposed towards a welding zone of the first part, i.e., towards the first pressure maintaining mechanism 20, so as to provide cooling air, and promote timely dissipation of heat at the welding position of the first part and the second part. Optionally, in this embodiment, four first cooling mechanisms 50 are provided, and the four first cooling mechanisms 50 form a rectangular structure on the base and are arranged around the outer side of the working area a of the pressure plate 10 to match with the rectangular welding area of the first component, so as to increase the purging range of the cooling gas as much as possible and increase the cooling speed.

Further, for keyboard products, because the number of keys is large, the first pressure maintaining mechanism 20 is correspondingly provided in plural and arranged in plural rows, so that only purging the outside of the welding area of the first part can only obtain rapid cooling of the components to be pressed at the edge of the welding area, and the cooling effect of the components to be pressed at the middle part is not good. Thus, referring to fig. 4 and 5, the platen structure further includes a second cooling mechanism 60 disposed in the working area a of the platen 10; specifically, the second cooling mechanism 60 includes a second air cavity 62 disposed on the platen body 11 and a second air outlet 64 disposed on the bottom surface of the platen body 11, the second air outlet 64 is communicated with the second air cavity 62, and the second air outlet 64 faces the first pressure retaining mechanism 20, i.e., faces the stacking position of the first part and the second part, and the air is blown out from the second air outlet 64, so as to realize rapid cooling of the stacking position. Alternatively, referring to fig. 7, a vent groove 114 is provided on the top surface of the platen body 11, referring to fig. 3, a second air inlet 63 is provided on the cover plate 12, and the vent groove 114 communicates the second air inlet 63 with the second air cavity 62, so that external air can be input from the cover plate 12, and the interference between the second cooling mechanism 60 and the pressure maintaining mechanism is avoided, thereby realizing the reasonable arrangement of the second cooling mechanism 60. Optionally, the second cooling mechanism 60 is disposed between two rows of adjacent first pressure maintaining mechanisms 20, so that the two rows of adjacent first pressure maintaining mechanisms 20 are cooled by using the same second cooling mechanism 60, and the structural design of the second cooling mechanism 60 is optimized. Further, referring to fig. 4 and 5, the pressure plate body 11 is provided with an accommodating groove 113, a second air seat 61 is disposed in the accommodating groove 113, a second air cavity 62 is disposed on the second air seat 61, and a second air outlet 64 is disposed at the bottom of the second air seat 61. Optionally, the bottom of the second air seat 61 is a conical structure, and second air outlets 64 are disposed on both sides of the conical structure, so that air is discharged to both sides, and air is blown into two adjacent rows of the first pressure maintaining mechanisms 20 respectively. Specifically, the number of the first air outlets 53 and the second air outlets 64 corresponds to the number of the first pressure maintaining mechanisms 20, and each second air outlet 64 can blow air for one first pressure maintaining mechanism 20, so that the cooling effect is fully ensured.

Further, referring to fig. 5 and 8, the bottom of the cover plate 12 is provided with a limiting plate 122, a third limiting platform 1131 is provided on a groove wall of the accommodating groove 113, the second air seat 61 includes an air seat body 611 and a second boss 612 disposed at a top end of the air seat body 611, and the second boss 612 abuts between the third limiting platform 1131 and the limiting plate 122, so as to realize stable placement of the second air seat 61 in the accommodating groove 113. In order not to interfere with the gas circulation in the second plenum 62, two spacing plates 122 are provided, and the vent grooves 114 may extend to the spacing plates 122, so that the external gas enters the second plenum 61 from the space between the two spacing plates 122. Further alternatively, referring to fig. 7, when a plurality of second cooling mechanisms 60 are provided, the plurality of vent grooves 114 of the plurality of second cooling mechanisms 60 may be communicated through the communication groove 115, and the second air inlet 63 is communicated with the communication groove 115, that is, the plurality of second cooling mechanisms 60 use the same second air inlet 63 for air intake, which is beneficial to simplify the structure of the second cooling mechanisms 60 and reduce the number of parts and manufacturing cost.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A pressing plate structure is used for realizing the pressing of a first part and a second part which is dispersedly and dispersedly overlapped on the first part, and is characterized by comprising a pressing plate (10) and a pressing plate body arranged on the pressing plate (10):

the first pressure maintaining mechanism (20) comprises a through hole (13) arranged on the pressure plate (10) and a pressure cylinder (21) arranged in the through hole (13) in a sliding manner, a first limiting table (1211) is arranged in the through hole (13), a first elastic piece is arranged between the pressure cylinder (21) and the first limiting table (1211), and the first elastic piece is configured to enable the pressure cylinder (21) to always have the tendency of pressing the first part and the second part which are mutually overlapped in a pressing manner;

and the second pressure maintaining mechanism (30) comprises a first fixed seat (31) and a pressure rod (32) arranged on the first fixed seat (31) in a sliding manner, a second elastic piece is arranged between the pressure rod (32) and the first fixed seat (31), and the second elastic piece is configured to enable the pressure rod (32) to always have the tendency of pressing down the first part during pressing.

2. The platen structure of claim 1, wherein the platen (10) comprises a platen body (11) and a cover plate (12), a groove (111) is formed in the top of the platen body (11), and the cover plate (12) is covered in the groove (111); a first mounting hole (121) is formed in the cover plate (12), a second mounting hole (112) is formed in the pressing plate body (11), and the first mounting hole (121) and the second mounting hole (112) are communicated with each other to form the through hole (13);

the hole wall of the first mounting hole (121) is provided with the first limiting table (1211), the top end of the pressing cylinder (21) is provided with a first boss (211), and the first elastic piece is arranged between the first boss (211) and the first limiting table (1211).

3. The platen structure according to claim 2, wherein a second limiting table (1121) is arranged on the wall of the second mounting hole (112), and the first boss (211) can abut against the second limiting table (1121) to limit the downward movement of the platen (21).

4. The platen structure according to claim 1, wherein a first arc-shaped groove (212) is formed in an outer wall of the platen (21), a second arc-shaped groove is formed in a wall of the through hole (13), the first arc-shaped groove (212) and the second arc-shaped groove form a cylindrical groove body, and a limit pin is inserted into the cylindrical groove body and used for limiting rotation of the platen (21).

5. The platen structure of claim 1, wherein the pressing rod (32) comprises a rod body (321) and a pressing head (322) arranged at the bottom end of the rod body (321), the rod body (321) is slidably arranged on the first fixing seat (31), and the second elastic member is arranged between the top surface of the pressing head (322) and the bottom surface of the first fixing seat (31);

and a silica gel gasket (33) is arranged on the bottom surface of the pressure head (322).

6. The platen structure according to claim 1, further comprising a third pressure maintaining mechanism (40), the third pressure maintaining mechanism (40) comprising a second fixed seat (41) provided on the platen (10) and an elastic needle (42) provided on the second fixed seat (41), the elastic needle (42) being configured to have a tendency to press down the first part at all times when press-fitting.

7. The platen structure of claim 1, further comprising a first cooling mechanism (50), wherein the first cooling mechanism (50) comprises a first air seat (51) disposed at the bottom of the platen (10), and a first air inlet (52) and a first air outlet (53) disposed on the first air seat (51), a first air cavity is disposed in the first air seat (51), the first air inlet (52) and the first air outlet (53) are both communicated with the first air cavity, and the first air outlet (53) faces the first pressure maintaining mechanism (20).

8. The platen structure of claim 2, further comprising a second cooling mechanism (60), the second cooling mechanism (60) comprising a second air cavity (62) provided on the platen body (11) and a second air outlet (64) provided on a bottom surface of the platen body (11), the second air outlet (64) facing the first pressure retention mechanism (20);

the top surface of the pressure plate body (11) is provided with an air vent groove (114), the cover plate (12) is provided with a second air inlet (63), and the air vent groove (114) is communicated with the second air inlet (63) and the second air cavity (62).

9. The platen structure of claim 8, wherein the first pressure retention mechanism (20) is provided with a plurality of rows; one second cooling mechanism (60) is arranged between two adjacent rows of the first pressure maintaining mechanisms (20);

an accommodating groove (113) is formed in the pressure plate body (11), a second air seat (61) is arranged in the accommodating groove (113), and a second air cavity (62) is formed in the second air seat (61); the bottom of the second air seat (61) is of a conical structure, and the second air outlet (64) is formed in each of two side edges of the conical structure.

10. The platen structure of claim 9, wherein a position-limiting plate (122) is disposed at the bottom of the cover plate (12), a third position-limiting platform (1131) is disposed on a wall of the accommodating groove (113), the second air seat (61) includes an air seat body (611) and a second boss (612) disposed at a top end of the air seat body (611), and the second boss (612) abuts between the third position-limiting platform (1131) and the position-limiting plate (122).