CN211047759U

CN211047759U - Plate taking mechanism and surface mounting system

Info

Publication number: CN211047759U
Application number: CN201922057102.8U
Authority: CN
Inventors: 王全林; 张思权; 徐炜晋; 彭威
Original assignee: Shenzhen Taowine Industrial Co ltd
Current assignee: Shenzhen Taowine Industrial Co ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-07-17
Anticipated expiration: 2029-11-25

Abstract

The utility model provides a plate taking mechanism and a surface mounting system, which relate to the technical field of main plate mounting and comprise a plate taking component, a frame and a base positioned on the frame; the base can stretch relative to the frame so as to enable the base to be close to or far away from the cover plate to be taken; the plate taking assembly comprises a middle bearing plate and an unlocking piece, wherein the end surface of the middle bearing plate is fixedly arranged with the base; the unlocking piece is connected with the middle bearing plate in a sliding manner, so that the unlocking piece can slide along the plate surface of the middle bearing plate; the slip direction of the relative well loading board of deblocking piece intersects with the flexible direction of the relative frame of base, so deblocking piece both can be along being close to or keeping away from the motion of waiting to get the apron direction, can also realize and wait to get the parallel direction motion of face direction of apron along the face of well loading board, through the position of adjustment deblocking piece, reaches and only relies on one to get trigger structure and realizes that the mesh that the hasp on waiting to get the apron of unidimensional carries out the unblock. The application range of the plate taking mechanism is expanded, and the applicability of the plate taking mechanism is improved.

Description

Plate taking mechanism and surface mounting system

Technical Field

The utility model relates to a mainboard pastes dress technical field particularly, relates to a get trigger mechanism and surface mounting system.

Background

With the development of science and technology, the living standard of people is rapidly improved, and the miniaturization of electronic equipment is in stronger demand, so that the original perforated plug-in component cannot meet the production demand, the surface mounting technology is a circuit connecting technology which is used for mounting a pin-free or short-lead surface assembly component on the surface of a printed circuit board or the surface of other substrates and welding and assembling the surface assembly component by methods such as reflow soldering or dip soldering, and the miniaturization demand of the electronic equipment can be met because perforation is not needed, and the rapid development is achieved. In the surface mounting process, SMT board fetching is an indispensable step, and mainly performs operations such as board turning and turning on a main board.

In the existing board taking mechanism, before the operation such as turning over a board and the like is carried out on a main board, an unlocking mechanism is required to unlock the fixed main board. However, the unlocking end of the lock catch can only unlock the lock catch at the fixed position when unlocking, so that the applicability of the plate taking mechanism is limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a get trigger structure and surface mounting system to the not enough among the above-mentioned prior art to solve the current narrower problem of trigger structure suitability of getting.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

one aspect of the embodiments of the present invention provides a plate taking mechanism, which includes a plate taking assembly, a frame and a base located on the frame; the base can stretch relative to the frame so as to enable the base to be close to or far away from the cover plate to be taken; the plate taking assembly comprises a middle bearing plate and an unlocking piece, wherein the end surface of the middle bearing plate is fixedly arranged with the base; the unlocking piece is connected with the middle bearing plate in a sliding manner, so that the unlocking piece can slide along the plate surface of the middle bearing plate; the sliding direction of the unlocking piece relative to the middle bearing plate is crossed with the telescopic direction of the base relative to the rack.

Optionally, the unlocking member includes a sliding portion and an unlocking portion, the ends of which are connected by an included angle; one of the sliding part and the middle bearing plate is provided with a sliding groove, the other of the sliding part and the middle bearing plate is provided with a convex block, and the sliding groove is matched with the convex block.

Optionally, the plate taking assembly further comprises an upper bearing plate and a transmission assembly in transmission connection with the unlocking piece; the end face of the upper bearing plate is fixedly arranged with the base; the transmission assembly comprises a universal coupling and a transmission part arranged on the upper bearing plate; the transmission portion is connected with one end of the unlocking piece through the universal coupling, and the other end of the unlocking piece is provided with an unlocking portion used for unlocking a lock catch on the cover plate to be taken.

Optionally, the plate taking assembly further comprises a first driver arranged on the upper bearing plate; the transmission part comprises a transmission wheel and a synchronous belt which are arranged on the upper bearing plate; the rotating end of the first driver is in transmission connection with the driving wheel through a synchronous belt; the rotating shaft of the driving wheel is rotatably connected with one end of the universal coupling.

Optionally, the plate taking assembly further comprises a lower bearing plate and a clamp arranged on the lower bearing plate; the end face of the lower bearing plate is fixedly arranged with the base, the clamp comprises a first clamping part and a second clamping part which are oppositely arranged on the lower bearing plate, and the first clamping part and the second clamping part are respectively used for abutting against two end parts of the cover plate to be taken so as to enable the clamp to clamp the cover plate to be taken.

Optionally, the plate taking assembly further comprises a second driver arranged on the lower bearing plate; the second driver is used for driving the first clamping part and the second clamping part to approach or depart from each other.

Optionally, the plate taking assembly further comprises a reinforcing member; one side of the reinforcing piece is fixedly connected with the middle bearing plate, and the other side of the reinforcing piece is fixedly connected with the base.

Optionally, the number of unlocking members is 4.

Optionally, the plate taking mechanism further comprises a third driver arranged on the rack; the third driver is used for driving the base to be close to or far away from the cover plate to be taken relative to the machine frame.

The embodiment of the utility model provides a further aspect provides a surface mounting system, including the board mechanism of getting of any kind of above-mentioned.

The beneficial effects of the utility model include:

the utility model provides a get trigger to construct, including getting trigger subassembly, frame and base. The base sets up in the frame, and the unit can carry out concertina movement relative to the frame to can make the base be close to or keep away from and wait to get the apron. The plate taking assembly comprises a middle bearing plate and an unlocking piece, wherein the end surface of the middle bearing plate is fixedly arranged with the base; the unlocking piece is connected with the middle bearing plate in a sliding mode, so that the unlocking piece can slide along the plate surface of the middle bearing plate. The sliding direction of the unlocking piece relative to the middle bearing plate is crossed with the telescopic direction of the base relative to the rack. Thereby realize that the unlocking piece that sets up on well loading board can be along the direction parallel with the face direction of waiting to get the apron. Because the unlocking piece sets up on the face of well loading board, well loading board and the fixed setting of base, so unlocking piece both can be along with the flexible motion of waiting to get the apron direction of being close to or keeping away from of base, can also realize along the face of well loading board with the parallel direction motion of the face direction of waiting to get the apron to through the position of adjustment unlocking piece, reach and only rely on one to get trigger structure and realize carrying out the purpose of unblock to the not unidimensional hasp of waiting to get on the apron. The application range of the plate taking mechanism is expanded, and the applicability of the plate taking mechanism is improved.

The utility model also provides a surface mounting system, with foretell get the trigger mechanism be applied to this system in, can effectual improvement get the efficiency of trigger process, shorten the time that surface mounting consumes.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a plate fetching mechanism according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of area A of FIG. 1;

fig. 3 is a partially enlarged view of a region B in fig. 1.

Icon: 100-a frame; 101-a third driver; 200-a base; 201-middle bearing plate; 2021-sliding part; 20211-chute; 2022-unlocking; 20221-unlocking part; 203-an upper carrier plate; 204-universal coupling; 205-a transmission wheel; 206-a synchronous belt; 207-a reinforcement; 208-lower carrier plate; 209-clamp; 210-a first driver; 211-idler gear; 300-a cover plate to be taken; 301-locking.

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. It should be noted that, in the case of no conflict, various features in the embodiments of the present invention may be combined with each other, and the combined embodiments are still within the 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 "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like 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 and simplification of the 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.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In one aspect of the embodiment of the present invention, a board taking mechanism is provided, as shown in fig. 1, including a board taking assembly, a frame 100, and a base 200 located on the frame 100; the base 200 can be extended and retracted relative to the frame 100, so that the base 200 is close to or far away from the cover plate 300 to be taken; the plate taking assembly comprises a middle bearing plate 201 and an unlocking part, wherein the end surface of the middle bearing plate 201 is fixedly arranged with the base 200; the unlocking piece is connected with the middle bearing plate 201 in a sliding mode, so that the unlocking piece can slide along the plate surface of the middle bearing plate 201; the sliding direction of the unlocking member relative to the middle bearing plate 201 intersects with the telescopic direction of the base 200 relative to the rack 100.

Illustratively, as shown in fig. 1, the base 200 is disposed on the rack 100, and at the same time, the base 200 can perform a telescopic motion relative to the rack 100, so that the base 200 and the middle carrying plate 201 disposed on the base 200 can move in a direction approaching or departing from the cover plate 300 to be taken along with the telescopic motion of the base 200. The plate-taking assembly is disposed on the base 200, and can move along with the extension and contraction of the base 200. Meanwhile, the end face of the middle bearing plate 201 in the plate taking assembly is fixedly connected (detachably connected or non-detachably connected) with one side wall of the base 200, and at this time, the plate face of the middle bearing plate 201 is intersected with the base 200, so that when the unlocking piece slides along the plate face of the middle bearing plate 201, the unlocking piece slides along the extension direction of the base 200, namely, the unlocking piece slides along the extension direction of the base 200, the unlocking piece can move along the direction close to or far away from the cover plate 300 to be taken along with the extension of the base 200, and can also move along the direction parallel to the plate face direction of the cover plate 300 to be taken along the plate face of the middle bearing plate 201. In addition, in order to save materials and reduce manufacturing cost, a hollow structure (as shown in fig. 3) may be further disposed on the middle carrier plate 201.

In actual operation, as shown in fig. 1, the cover plate 300 to be taken is horizontally disposed, and the plate taking mechanism is disposed above the cover plate 300 to be taken. When the plate taking mechanism is needed to unlock and take the plate, the control base 200 moves along the direction (downward) close to the cover plate 300 to be taken, so that the unlocking piece is vertically close to the cover plate 300 to be taken. At this moment, the control unlocking piece slides along the face of well loading board 201 to make unlocking piece remove along the direction parallel with the face of apron 300 of waiting to get, through the position adjustment to unlocking piece in vertical and two directions of level, realize that unlocking piece reaches the hasp 301 of waiting to get any one position of face. Then effective unlocking is performed. That is, the unlocking member can correspondingly realize the unlocking function of the lock catches 301 at different positions on the cover plate 300 to be taken through the position adjustment in the vertical and horizontal directions. The special machine is avoided, and only one plate taking mechanism can unlock the lock catch 301 at the fixed position on the same cover plate 300 to be taken. The utility model has the advantages of effectual improvement get the suitability of board mechanism in this application, simultaneously, also reduced surface mounting equipment's manufacturing cost for same production line can correspond the production manufacturing that realizes waiting to get apron 300 of not unidimensional.

Optionally, the unlocking piece comprises a sliding part 2021 and an unlocking part 2022, the ends of which are connected in an included angle; a sliding groove 20211 is provided on one of the sliding portion 2021 and the middle carrier plate 201, a protrusion is provided on the other of the sliding portion 2021 and the middle carrier plate 201, and the sliding groove 20211 is provided in cooperation with the protrusion.

For example, as shown in fig. 1, when the panel surface of the cover plate 300 to be taken is located below the base 200, that is, below the unlocking piece, in order to achieve that the unlocking piece can slide along the panel surface of the middle loading plate 201 and can also be matched with the lock catch 301 on the cover plate 300 to be taken arranged below for unlocking, the unlocking piece is arranged to include a sliding portion 2021 and an unlocking portion 2022, and is fixedly connected at a right angle (which may be set at various angles such as 89 degrees, 91 degrees, etc. as required). The sliding portion 2021 is slidably connected to the surface of the middle carrier plate 201, and one end of the unlocking portion 2022 is fixedly connected to one end of the sliding portion 2021 at an included angle, so that the unlocking portion 2022 can face the latch 301 disposed on the surface of the cover plate 300 to be taken, and is convenient to be matched with the latch 301 to unlock. In order to expand the moving range of the unlocking portion 2022 in the horizontal direction as much as possible, as shown in fig. 1, a sliding groove 20211 may be further provided on the sliding portion 2021, and a protrusion (which may be a bolt, a T-shaped protrusion, or other forms) may be provided on the lower plate surface of the middle bearing plate 201, and when the bolt is adopted, the diameter of the nut may be larger than the width of the sliding groove 20211, so that the nut can abut against the groove wall of the sliding groove 20211 after the bolt passes through the sliding groove 20211 and is screwed with the middle bearing plate 201, and meanwhile, in order to enable the sliding portion 2021 to have better stability during sliding, a plurality of protrusions may be further provided, so that the sliding portion 2021 can slide in a predetermined direction). The range of movement of the unlocking portion 2022 depends on the length of the slide groove 20211 provided on the slide portion 2021. The slide groove 20211 may be provided in the middle support plate 201, and the projection may be provided in the slide portion 2021. In order to further improve the automatic control of the plate taking mechanism, an air cylinder, an oil cylinder, or other actuators may be further disposed on the middle bearing plate 201, so as to realize the automatic control of the sliding portion 2021 sliding relative to the middle bearing plate 201 according to the instruction.

Optionally, the plate taking assembly further comprises an upper bearing plate 203 and a transmission assembly in transmission connection with the unlocking piece; the end surface of the upper bearing plate 203 is fixedly arranged with the base 200; the transmission assembly comprises a universal coupling 204 and a transmission part arranged on the upper bearing plate 203; the transmission part is connected with one end of an unlocking part through a universal coupling 204, and the other end of the unlocking part is provided with an unlocking part 20221 for unlocking the lock catch 301 on the cover plate 300 to be taken.

Illustratively, to further improve the degree of automation control of unlocking the unlocking member, as shown in fig. 1, the end surface of the upper supporting plate 203 is fixedly disposed on the base 200, and the upper supporting plate 203 is disposed above the middle supporting plate 201 and parallel to the middle supporting plate. The upper plate surface of the upper bearing plate 203 is provided with a transmission part, so that the transmission part can form a transmission or driving relation with the unlocking piece, a universal coupling 204 is arranged between the upper bearing plate 203 and the middle bearing plate 201, one end of the universal coupling 204 is connected with one end of the unlocking piece, and the other end of the universal coupling is connected with the transmission part. Thereby when transmission portion realized the transmission, drive universal joint 204 along its self circumferential direction, and then make the unlocking piece who connects at the other end of universal joint 204 rotate, after unlocking portion 20221 and the hasp 301 cooperation of waiting to get on the apron 300, open hasp 301 through rotatory realization promptly. It should be noted that the structure of the unlocking portion 20221 needs to be specifically set according to the structure of the latch 301, for example, as shown in fig. 3, when the latch 301 is a rotary locking member, the end of the unlocking portion 20221 may be provided with a groove which is matched with the width of the latch 301, and the unlocking is completed in a manner that the groove wall of the groove is clamped with the latch 301 and rotates. Further, the unlocking portion 20221 may have a two-claw structure, and the rotation of the clamp latch 301 may complete the unlocking. In order to realize the rotation of the unlocking portion 2022, the unlocking portion 2022 may be configured as a sleeve and a rotating rod, the sleeve is fixedly connected with the sliding portion 2021, the sleeve is sleeved outside the rotating rod, and the sleeve and the rotating rod may also be connected through a rotating member, such as a bearing.

Optionally, the plate taking assembly further comprises a first driver 210 disposed on the upper loading plate 203; the transmission part comprises a transmission wheel 205 and a synchronous belt 206 which are arranged on the upper bearing plate 203; the rotating end of the first driver 210 is in transmission connection with the transmission wheel 205 through the synchronous belt 206; the rotating shaft of the driving wheel 205 is rotatably connected with one end of the universal joint 204.

For example, as shown in fig. 2, in order to improve the transmission efficiency and facilitate the subsequent unlocking member to be a plurality of members, the purpose of synchronous transmission, i.e. synchronous unlocking, can be achieved. The transmission section includes a transmission wheel 205 and a timing belt 206. The first driver 210 is disposed on the upper supporting plate 203, and a rotating wheel engaged with the synchronous belt 206 may be disposed on a rotating end of the first driver, the rotating wheel and the driving wheel 205 are in transmission connection through the synchronous belt 206, wherein, in order to enable the driving wheel 205 to drive the universal coupling 204 to rotate, a rotating shaft of the driving wheel 205 penetrates through the upper supporting plate 203 and is connected with one end of the universal coupling 204. The synchronous belt 206 may be a rubber belt, or may be a belt with teeth on the surface, and the driving wheel 205 is provided with teeth engaged with each other, so that accurate synchronous driving is realized through the transmission of gears.

Optionally, the plate taking assembly further includes a lower bearing plate 208 and a clamp 209 disposed on the lower bearing plate 208; the end surface of the lower bearing plate 208 is fixed to the base 200, and the clamp 209 includes a first clamping portion and a second clamping portion oppositely disposed on the lower bearing plate 208, and the first clamping portion and the second clamping portion are respectively used for abutting against two ends of the cover plate 300 to be taken, so that the clamp 209 clamps the cover plate 300 to be taken.

For example, an end surface of the lower carrier plate 208 is fixed to the base 200, and referring to fig. 1, the lower carrier plate 208 is disposed below the middle carrier plate 201, and a plate surface of the lower carrier plate 208 is parallel to a plate surface of the middle carrier plate 201. The lower plate surface of the middle bearing plate 201 is provided with a clamp 209 formed by matching a first clamping part and a second clamping part. The plate taking operation can be realized through the clamp 209 after the unlocking piece unlocks the lock catch 301 on the cover plate 300 to be taken by abutting the two opposite ends of the first clamping part and the second clamping part to the cover plate 300 to be taken respectively, namely applying opposite clamping forces to the cover plate 300 to be taken by the first clamping part and the second clamping part respectively. In addition, in order to enable the clamping to be more stable, grooves can be formed in the clamping positions of the first clamping portion and the second clamping portion, and more stable clamping is provided.

Optionally, the plate taking assembly further comprises a second driver disposed on the lower bearing plate 208; the second driver is used for driving the first clamping part and the second clamping part to approach or depart from each other.

For example, in order to improve the automation control level of the plate taking mechanism, a second driver may be further provided to drive the first clamping portion and the second clamping portion to move towards the direction away from each other, and then after the base 200 moves downwards to a proper position, the second driver drives the first clamping portion and the second clamping portion to move towards each other, so that the cover plate 300 to be taken is clamped by the first clamping portion and the second clamping portion, and then subsequent operations are completed along with the movement of the base 200.

Optionally, the plate-taking assembly further comprises a reinforcement 207; one side of the reinforcing member 207 is fixedly connected to the middle carrier plate 201, and the other side is fixedly connected to the base 200.

For example, as shown in fig. 1, in order to further improve the installation strength of the middle bearing plate 201, a reinforcing member 207, that is, a triangular hollow structure in fig. 1, may be further provided, and the middle bearing plate 201 is reinforced by using the stability of the triangle. The working stability of the plate taking mechanism is further improved.

Optionally, the number of unlocking members is 4.

For example, referring to fig. 1, the number of unlocking members may be four, and the number of corresponding unlocking portions 2022, sliding portions 2021, universal joints 204, transmission wheels 205, and the like may also be four. Through setting up four drive wheels 205 in the four corners position of last loading board 203, simultaneously, overlap the outside of four drive wheels 205 with hold-in range 206 cover, make it form the mutual transmission relation, in order to improve driven efficiency and the convenience when dismantling the maintenance, can also be provided with an idler 211 between two adjacent drive wheels 205, and the distance that sets up between four idlers 211 is less than the distance that sets up between four drive wheels 205. While the timing belt 206 is disposed inside the idle pulley 211, i.e., as shown in fig. 2, the timing belt 206 is tensioned. So that the remaining drive wheels 205 can be kept as synchronized as possible while the second drive is turning. It should be noted that, in other embodiments of the present application, the unlocking member may also be in various forms such as 3, 2, 5, etc., and the specific arrangement may refer to the arrangement when the unlocking member is 4.

Optionally, the plate taking mechanism further includes a third driver 101 disposed on the rack 100; the third driver 101 is used for driving the base 200 to approach or move away from the cover plate 300 to be taken relative to the frame 100.

Illustratively, a third driver 101 may be further disposed on the rack 100, and the base 200 may be driven by the third driver 101 to approach or move away from the cover plate 300 to be taken. Thereby further improving the mechanization degree of the plate taking mechanism. In addition, in order to realize accurate control, all the drivers can be connected with a controller, and the controller realizes fine control of different parts according to instruction signals. It should be noted that the first actuator 210, the second actuator, and the third actuator 101 may be a cylinder, an oil cylinder, or a motor.

For example, the plate taking mechanism is arranged in a surface mounting system, the lock catches 301 on cover plates 300 to be taken of different sizes can be unlocked through the plate taking mechanism, and operations such as moving and overturning can be realized through the clamp 209. The operation efficiency of surface mounting is improved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A plate taking mechanism is characterized by comprising a plate taking assembly, a rack and a base positioned on the rack; the base can stretch and retract relative to the rack so as to enable the base to be close to or far away from the cover plate to be taken; the plate taking assembly comprises a middle bearing plate and an unlocking piece, and the end surface of the middle bearing plate is fixedly arranged with the base; the unlocking piece is connected with the middle bearing plate in a sliding mode, so that the unlocking piece can slide along the plate surface of the middle bearing plate; the sliding direction of the unlocking piece relative to the middle bearing plate is intersected with the telescopic direction of the base relative to the rack.

2. The plate withdrawing mechanism as set forth in claim 1, wherein the unlocking member includes a sliding part and an unlocking part connected at an included angle at the end; one of the sliding part and the middle bearing plate is provided with a sliding groove, the other of the sliding part and the middle bearing plate is provided with a convex block, and the sliding groove is matched with the convex block.

3. The plate withdrawing mechanism as set forth in claim 1, wherein the plate withdrawing assembly further comprises an upper bearing plate and a driving assembly drivingly connected to the unlocking member; the end face of the upper bearing plate is fixedly arranged with the base; the transmission assembly comprises a universal coupling and a transmission part arranged on the upper bearing plate; the transmission portion passes through universal joint with the one end of unlocking piece is connected, the other end of unlocking piece is provided with the portion of unblanking and is used for untiing wait to get the hasp on the apron.

4. The plate removing mechanism as claimed in claim 3, wherein said plate removing assembly further comprises a first actuator disposed on said upper carrier plate; the transmission part comprises a transmission wheel and a synchronous belt which are arranged on the upper bearing plate; the rotating end of the first driver is in transmission connection with the driving wheel through the synchronous belt; and the rotating shaft of the driving wheel is rotatably connected with one end of the universal coupling.

5. The plate removal mechanism of claim 1, wherein the plate removal assembly further comprises a lower carrier plate and a clamp disposed on the lower carrier plate; the end face of the lower bearing plate is fixedly arranged with the base, the clamp comprises a first clamping portion and a second clamping portion which are oppositely arranged on the lower bearing plate, and the first clamping portion and the second clamping portion are respectively used for abutting against two end portions of the cover plate to be taken so that the clamp clamps the cover plate to be taken.

6. The plate removing mechanism as claimed in claim 5, wherein said plate removing assembly further comprises a second actuator disposed on said lower carrier plate; the second driver is used for driving the first clamping part and the second clamping part to approach or separate from each other.

7. The board removal mechanism of claim 1, wherein the board removal assembly further comprises a stiffener; one side of the reinforcing piece is fixedly connected with the middle bearing plate, and the other side of the reinforcing piece is fixedly connected with the base.

8. The plate fetching mechanism of any one of claims 1 to 7, wherein the number of unlocking members is 4.

9. The plate fetching mechanism of any one of claims 1 to 7, further comprising a third driver provided on the rack; the third driver is used for driving the base to approach or depart from the cover plate to be taken relative to the frame.

10. A surface mount system comprising the plate taking mechanism according to any one of claims 1 to 9.