PCBA board tool suction cup mechanism

Abstract

The invention discloses a PCBA board tool suction cup mechanism. The PCBA board tool suction cup mechanism comprises a mounting frame, a rapid switching disc, a suction cup assembly, a floating positioning assembly, an elastic buffering assembly and a pressure sensing assembly. The rapid switching disc is installed on the top of the installation frame and used for achieving rapid and automatic butt joint and switching with the robot. The suction cup assembly is installed at the bottom of the installation frame and used for sucking the PCBA board. The floating positioning assembly is used for being inserted into a positioning hole of the PCBA board to achieve accurate positioning, and repeated positioning accuracy is improved. The elastic buffering assembly is used for providing buffering during assembling and eliminating matching errors. The pressure sensing assembly is used for monitoring the assembling pressure in real time. According to the invention, rapid and automatic remodeling of the tool, high-precision flexible assembly of the PCBA board and intelligent monitoring of the process are realized, and the production efficiency and the product yield are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic production equipment, in particular to a PCBA board tool suction cup mechanism. BACKGROUND

[0002] In the field of electronic product manufacturing, the assembly precision and efficiency of PCBA boards are crucial. With the diversification of market demand, production lines need to frequently change product models, which requires assembly tools to have the ability to quickly change types.

[0003] In the prior art, PCBA board assembly is mostly done manually or with special fixed tools. Manual assembly is low in efficiency and poor in consistency. Although special fixed tools have high precision, they need to be disassembled, reinstalled and calibrated as a whole when changing types, which consumes a lot of time and manpower and seriously restricts the flexibility of the production line.

[0004] In addition, in the process of automated assembly, how to achieve quick and accurate docking of robots and tools, how to ensure the positioning accuracy when sucking PCBA boards, and how to eliminate the fitting error when assembling multiple components and prevent the precise components from being crushed, are all problems that need to be solved in the prior art. SUMMARY

[0005] The purpose of the present application is to overcome the shortcomings of the prior art and provide a PCBA board tool suction cup mechanism to solve the problems of long production line changeover time, insufficient positioning accuracy and errors and damage during assembly, and to achieve automatic and quick changeover, high-precision positioning of PCBA boards and flexible assembly. To achieve the above purpose, the following technical solutions are adopted: A PCBA board tool suction cup mechanism, comprising: A mounting frame 1, which is provided with an upper mounting plate 11, a middle floating plate 12 and a lower working plate 13 from top to bottom; A quick switching disc 2 fixedly connected to the top of the upper mounting plate 11 for docking with the end effector of a robot; A plurality of suction cup assemblies 3 penetrating the lower working plate 13, with their suction holding parts below the lower working plate 13, for collectively sucking a PCBA board; At least two floating positioning assemblies 4 penetrating the lower working plate 13, with their positioning parts below the lower working plate 13, for inserting into the reserved positioning holes of the PCBA board before the suction cup assemblies 3 suck the PCBA board for positioning; A elastic buffer assembly 5 connected between the middle floating plate 12 and the lower working plate 13 for providing buffer when the PCBA board is assembled with the target station; A pressure sensing assembly 6 is arranged between the lower workboard 13 and the middle floating board 12, which is used to detect the relative force caused by the deformation of the elastic buffer assembly 5 in real time, so as to monitor the assembly pressure of the PCBA board.

[0006] Preferably, the upper mounting plate 11 of the mounting frame 1 is connected with the middle floating board 12 through a plurality of vertical supporting columns 14; the elastic buffer assembly 5 and the pressure sensing assembly 6 are both arranged between the middle floating board 12 and the lower workboard 13; the plurality of suction cup assemblies 3 and the at least two floating positioning assemblies 4 are both arranged in the lower workboard 13, and the suction holding part of each suction cup assembly 3 and the positioning part of each floating positioning assembly 4 are both arranged below the lower workboard 13.

[0007] Preferably, a plurality of limiting bolts 7 are arranged in the lower workboard 13; each limiting bolt 7 is rigidly connected with the lower workboard 13, and a part of each limiting bolt 7 is arranged below the lower workboard 13, and the bottom of each limiting bolt 7 is a flat surface; the bottoms of the plurality of limiting bolts 7 are arranged in the same horizontal plane, and each limiting bolt 7 is connected with the lower workboard 13 through a nut 8.

[0008] Preferably, the suction cup assembly 3 comprises a suction cup connecting rod 31 arranged in the lower workboard 13 and a floating suction cup 32 connected with the bottom of the suction cup connecting rod 31.

[0009] Preferably, each floating positioning assembly 4 comprises a vertically floating floating pin 41, and the end of the floating pin 41 is a tapered or spherical positioning part 410.

[0010] Preferably, the elastic buffer assembly 5 is a spring floating bearing assembly, which comprises a top mounting head 51, a main body shaft 52, a bearing sleeve 53 and a spring 54; the bearing sleeve 53 is arranged in the middle floating board 12, the main body shaft 52 is arranged in the bearing sleeve 53, the top of the main body shaft 52 is connected with the top mounting head 51, and the bottom of the main body shaft 52 is connected with the lower workboard 13; the top mounting head 51 is limited by the top end surface of the bearing sleeve 53, and the diameter of the top mounting head 51 is larger than the inner through hole of the bearing sleeve 53, which is used to prevent the main body shaft 52 from falling downward; the bottom of the bearing sleeve 53 is connected with a ring-shaped gasket 55, and the spring 54 is sleeved on the outer periphery of the bottom of the main body shaft 52 and is clamped between the ring-shaped gasket 55 and the top surface of the lower workboard 13, which is used to provide a vertically elastic buffer force.

[0011] Preferably, the pressure sensing assembly 6 is a pressure sensor, and a surrounding block 9 is arranged between the lower workboard 13 and the middle floating board 12, and the pressure sensor is embedded in the inside of the surrounding block 9; when the elastic buffer assembly 5 is compressed or stretched due to the stress of the lower workboard 13, the middle floating board 12 and the surrounding block 9 are displaced, so that the pressure sensor senses the pressure change.

[0012] Preferably, the pressure sensing component 6 is connected to the center of the top surface of the lower working plate 13.

[0013] Preferably, the areas of the upper mounting plate 11, the middle floating plate 12, and the lower working plate 13 increase sequentially, and space is reserved between adjacent plates.

[0014] Preferably, of the at least two floating positioning components 4, one is installed at a corner of the lower working plate 13, and the other is installed at the diagonal position of the floating positioning component 4 at the above corner position; The plurality of suction cup assemblies 3 are provided at least one in each corner and the middle area of ​​the lower working plate 13.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This design utilizes a quick-change panel on the top of the upper mounting plate, enabling the robot to rapidly complete tooling docking and locking without requiring overall disassembly and calibration. This solves the pain point of time-consuming and labor-intensive tooling changeovers in traditional systems. Simultaneously, the lower working plate integrates suction cup components, floating positioning components, and other actuators. When adapting to new PCBA board specifications, only the lower working plate module needs to be replaced or adjusted, significantly improving changeover efficiency and adapting to the production needs of multiple product types and small batches. This achieves rapid changeover and automated adaptation, enhancing the compatibility of the design on the production line.

[0016] 2. The floating positioning component in this design uses a conical or spherical positioning part, which can be precisely inserted into the pre-drilled positioning holes on the PCBA board. Combined with diagonal arrangement, it forms a bidirectional positioning reference, ensuring high repeatability. The elastic buffer component, combined with the elastic cushioning of springs, absorbs vertical errors during assembly and prevents hard collisions. Paired with a pressure sensing component to monitor pressure in real time, it effectively prevents PCBA board pad cracking and component detachment, significantly improving product yield. Thus, high-precision positioning and flexible buffering work together to ensure assembly quality. Attached Figure Description

[0017] Figure 1 This is a rear view of the present invention.

[0018] Figure 2 This is a three-dimensional schematic diagram of the overall structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of a single floating positioning component of the present invention.

[0020] Figure 4 This is a bottom view of the overall structure of the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of the elastic buffer component of the present invention. Detailed Implementation

[0022] The following examples further illustrate the features and other related characteristics of the present invention in detail, to facilitate understanding by those skilled in the art: like Figures 1 to 5 The PCBA board tooling suction cup mechanism in this case mainly consists of a mounting frame 1, a quick-change plate 2, a suction cup assembly 3, a floating positioning assembly 4, an elastic buffer assembly 5, and a pressure sensing assembly 6. The mounting frame 1, from top to bottom, comprises an upper mounting plate 11, a middle floating plate 12, and a lower working plate 13. The quick-change plate 2 is fixed to the top of the upper mounting plate 11 and is used to interface with the robot's end effector, such as... Figure 1 The system features two protruding posts 20 for quick positioning. Multiple suction cup assemblies 3 are mounted on the lower working plate 13, with the suction part located below the lower working plate 13, working together to pick up the PCBA board. At least two floating positioning assemblies 4 are also mounted on the lower working plate 13, with the positioning part located below the lower working plate 13. Before the suction cup assemblies 3 pick up the PCBA board, they are inserted into the reserved positioning holes on the PCBA board for positioning. An elastic buffer assembly 5 connects the middle floating plate 12 and the lower working plate 13, providing cushioning during the assembly of the PCBA board with the target station. A pressure sensing assembly 6 is located between the lower working plate 13 and the middle floating plate 12, detecting the relative force generated by the deformation of the elastic buffer assembly 5 in real time, and monitoring the pressure during the PCBA board assembly process. Specifically, this design constructs a clear three-tiered (upper mounting plate 11, middle floating plate 12, lower working plate 13) mounting framework. The top layer is responsible for docking with the robot, the bottom layer is responsible for performing suction and positioning operations, and the middle layer serves as a force transmission and conversion hub. The lower working board forms a suspension subsystem with the middle floating board through the elastic buffer component. When the PCBA board is pressed under force, the force is transmitted through the working board, causing the elastic buffer component to deform. The force generated by this deformation is directly detected by the pressure sensing component placed between the two, thereby monitoring the assembly pressure on the PCBA board in real time.

[0023] As described above, the mounting frame (1) in this case serves as the main support for the entire PCBA board tooling suction cup mechanism. The top quick-change plate (2) enables plug-and-play tooling, allowing the robot to complete replacement within seconds. This solves the problem of requiring complete disassembly and calibration of dedicated fixed tooling, which consumes a significant amount of time and manpower, greatly improving production line efficiency and enabling rapid docking with the robot. The cooperative design of the suction cup assembly (3) and the floating positioning assembly (4) enables the suction and initial positioning of the PCBA. The floating positioning assembly allows for insertion into the positioning hole before the suction cup, improving positioning accuracy. Simultaneously, the design of the middle floating plate (12) serves as the entire machine's load-bearing frame. Through the flexible connection between the elastic buffer assembly (5) and the lower working plate 13, it automatically absorbs assembly errors in the vertical direction, solving the problem of misalignment during multi-part assembly, preventing jamming, and avoiding overload of the mechanism. The pressure sensing component (6) facilitates real-time feedback of assembly pressure, providing real-time data support and enabling timely adjustments to assembly actions (such as pressure and speed parameters of the robot's end effector). This prevents damage to the PCBA board due to excessive pressure or impact on assembly quality due to insufficient pressure. Thus, the overall structural design of this project is reasonable, with all components working collaboratively to achieve precise pick-up, positioning, and assembly of the PCBA board. The layered structure of the mounting frame, combined with elastic buffering and pressure sensing, effectively addresses force changes and positional errors during PCBA board assembly, improving assembly accuracy and efficiency. Simultaneously, it adapts to the needs of automated robot operations, enhancing the level of automation in production.

[0024] like Figures 1-2 As shown, in a preferred embodiment, the upper mounting plate 11 of the mounting frame 1 is connected to the middle floating plate 12 via multiple vertical support columns 14; the lower working plate 13 is elastically connected to the middle floating plate 12 via an elastic buffer assembly 5, and a pressure sensing assembly 6 is disposed between the lower working plate 13 and the middle floating plate 12; the multiple suction cup assemblies 3 and the at least two floating positioning assemblies 4 are all inserted through the lower working plate 13, and the suction part of each suction cup assembly 3 and the positioning part of each floating positioning assembly 4 are located below the lower working plate 13. Thus, a stable rigid support structure is established between the upper mounting plate 11 and the middle floating plate 12 via the vertical support columns 14, providing a stable motion reference. Simultaneously, the lower working plate 13 forms a flexible structure with the middle floating plate 12 via the elastic buffer assembly, absorbing errors. The connection design between the various plates of the mounting frame in this invention combines rigid support with the flexibility of the working end, achieving extremely high repeatability positioning accuracy.

[0025] As described above, the rigid support structure ensures the overall stability and positional accuracy of the mechanism during high-speed movement after connection with the robot, avoiding positioning errors caused by severe frame vibration. Furthermore, by clearly positioning the pressure sensing components between the lower working plate and the middle floating plate, the force transmission path is minimized and made most direct, reducing signal interference and ensuring accurate and highly sensitive pressure detection. In addition, both the suction cup assembly 3 and the floating positioning assembly 4 are mounted on the lower working plate 13, allowing for the replacement or adjustment of only the entire lower working plate module when applying new PCBA products, greatly simplifying the changeover process and shortening the time required.

[0026] like Figure 1 and Figure 2 As shown, in a preferred embodiment, the lower working plate 13 is further provided with multiple limiting bolts 7, each of which is rigidly connected to the lower working plate 13. A portion of each limiting bolt 7 extends below the lower working plate 13, and its bottom is flat. The portions of the multiple limiting bolts 7 extending below the lower working plate 13 are at the same height, and the bottom surfaces of the multiple limiting bolts 7 are on the same horizontal plane. In specific implementation, each limiting bolt 7 is connected to the lower working plate 13 by a nut 8.

[0027] As described above, the limiting bolt 7 in this design extends to the lower working plate, serving as the reference for the suction height of the mechanism. This limits the maximum approach distance between the floating suction cup and the PCBA board. Furthermore, by loosening the nut 8, the extension length of the limiting bolt 7 can be flexibly adjusted according to actual needs, precisely regulating the limiting height distance and ensuring compatibility with different PCBA boards. The height of the rod portion extending below the lower working plate from each limiting bolt 7 is uniform, ensuring consistent assembly references. Moreover, the multiple limiting bolts, all at the same horizontal plane, not only limit the height but also form a stable support reference, preventing the suction cup from tilting due to uneven force. This ensures the PCBA board remains horizontal after suction, improving the planar accuracy of the suction board.

[0028] like Figure 1 and Figure 2As shown, in a preferred embodiment, the suction cup assembly 3 includes a suction cup connecting rod 31 passing through the lower working plate 13 and a floating suction cup 32 connected to the bottom of the suction cup connecting rod 31, with its maximum upward floating stroke limited by the limiting bolt 7. Thus, the floating suction cup can float within a certain range, adapting to minor unevenness on the PCBA board surface, ensuring full contact between the suction cup and the PCBA board, improving the stability and reliability of the suction, and compensating for positional errors during assembly by floating, protecting the PCBA board from hard impacts.

[0029] like Figure 1 and Figure 3 As shown, each floating positioning component 4 includes a vertically floating pin 41, the end of which is a conical or spherical positioning portion 410. Specifically, the floating pin includes a pin body 411 and a mounting sleeve 412 that presses into the mounting hole of the lower working board. The pin body 411 can move radially within its mounting sleeve, achieving vertical floating. In this way, the conical or spherical guide portion 410 facilitates the insertion of the floating pin 41 into the reserved positioning hole of the PCBA board, allowing for smooth insertion even with a certain positional deviation, achieving precise positioning.

[0030] like Figure 1 and Figure 5 As shown, the elastic buffer assembly 5 adopts a spring floating bearing assembly structure. The bearing sleeve 53 is fixed inside a pre-set mounting hole in the middle floating plate 12. The main shaft 52 is fitted through the bearing sleeve 53 with clearance. The top mounting head 51 is connected to the top of the main shaft 52, and the top mounting head 51 fits against the top end face of the bearing sleeve 53 to limit its movement and prevent the main shaft 52 from falling downwards. The bottom of the main shaft 52 is connected to the corresponding mounting position on the lower working plate 13. An annular gasket 55 is fixed to the bottom of the bearing sleeve 53. A spring 54 is sleeved on the outer periphery of the bottom of the main shaft 52, with its upper end abutting against the bottom surface of the annular gasket 55 and its lower end abutting against the top surface of the lower working plate 13.

[0031] As described above, the elastic buffer assembly 5 in this case, through the cooperation between the bearing sleeve 53 and the main shaft 52, significantly reduces the frictional resistance of the shaft movement, ensures smooth vertical displacement without jamming, and improves the response accuracy of the buffer action; the shim 520 provides a stable force-bearing surface for the spring 54, avoids lateral displacement and twisting when the spring extends or retracts, and ensures accurate transmission of the buffer force along the vertical direction; the limiting cooperation between the top mounting head 51 and the bearing sleeve 53 prevents excessive displacement of the main shaft.

[0032] like Figure 1As shown in Figure 2, in a preferred embodiment, the pressure sensing component 6 is a pressure sensor, and the surrounding block 9 has a hollow block structure, which is fixedly installed in the central area between the lower working plate 13 and the middle floating plate 12. The pressure sensor is embedded in the groove inside the surrounding block 9. In this way, the surrounding block 9 provides all-round protection for the pressure sensor, avoiding interference from external dust, collisions, etc., and ensuring detection stability. The pressure sensor synchronously senses pressure changes with the relative displacement of the middle floating plate 12 and the lower working plate 13, with high detection sensitivity, which can accurately capture small pressure fluctuations during PCBA board assembly. The pressure signal can be fed back to the control system in real time, which facilitates timely adjustment of assembly parameters and avoids PCBA board damage caused by abnormal pressure.

[0033] like Figures 1-2 As shown, in a preferred embodiment, the pressure sensor of the pressure sensing assembly 6 is fixed to the center of the top surface of the lower working plate 13, with the sensing end of the sensor facing upwards and tightly fitted to the bottom of the surrounding block 9. When the lower working plate 13 is displaced by force, the pressure sensor at the center can evenly receive the force transmitted from the surrounding elastic buffer assemblies 5, avoiding pressure detection deviation caused by installation position offset.

[0034] In this way, the pressure sensor installed in the center can collect the average force on the lower working plate 13, avoid detection distortion caused by uneven local force, and improve the accuracy of pressure monitoring. For the entire mechanism, the central installation method makes the force transmission path shorter, reduces signal delay, and adapts to the real-time control requirements of automated assembly.

[0035] like Figures 1-2 As shown, in a preferred embodiment, the areas of the upper mounting plate 11, the middle floating plate 12, and the lower working plate 13 increase sequentially. Spacing is reserved between adjacent plates. This design, with its progressively increasing plate area, provides ample installation space for the lower working plate 13, accommodating the arrangement requirements of suction cup assemblies 3 and floating positioning assemblies 4 for PCBA boards of different sizes. The upper-smaller, lower-larger structural layout also lowers the overall center of gravity of the mechanism, improving stability during operation and reducing vibration impact. The reserved space between adjacent plates not only accommodates components such as the vertical support column 14, the elastic buffer assembly 5, and the surrounding block 9, but also provides clearance for pipe layout and subsequent maintenance.

[0036] like Figures 1-2As shown, in a preferred embodiment, two floating positioning components 4 are provided, respectively installed at the upper left and lower right corners of the lower working board 13, with the positioning parts facing downwards and aligned with the corresponding reserved positioning holes on the PCBA board. Five suction cup components 3 are provided, four of which are installed at the four corners of the lower working board 13, and one is installed in the center area of ​​the board. The suction height of all suction cup components 3 is consistent to ensure simultaneous contact with the PCBA board surface. Thus, the diagonally arranged floating positioning components 4 can form a bidirectional positioning reference, quickly correcting the planar position deviation of the PCBA board and ensuring positioning accuracy. The corner and center suction cup layout ensures uniform force distribution when the PCBA board is held, preventing bending deformation of thin PCBA boards due to excessive local suction. This layout is adaptable to the structural characteristics of most rectangular PCBA boards, offering strong versatility and reducing the number of component adjustments required when changing between different product specifications.

[0037] In summary, the workflow for this case is as follows: Changeover: The robot moves to the tooling warehouse, docks with the quick changeover plate 2, and locks in place.

[0038] Material handling: The robot carries the mechanism to the PCBA board material location. The mechanism descends, and the pins 41 of the floating positioning component 4 are first inserted into the positioning holes of the PCBA board for precise positioning. Then, the suction cup component 3 connects to the vacuum and picks up the PCBA board.

[0039] Assembly: The robot transports the PCBA board it has picked up to the assembly station. The mechanism descends, and the elastic buffer component 5 first contacts the target component and begins compression, absorbing errors. Throughout the pressing process, the pressure sensing component 6 continuously monitors the pressure.

[0040] Monitoring and Placement: When the pressure reaches the preset successful assembly threshold, the robot stops pressing; if the pressure rises abnormally, an alarm is immediately triggered and the machine stops. After placement, the vacuum is broken, and the mechanism is either taken back by the robot or replaced.

[0041] In summary, this invention discloses a PCBA board tooling suction cup mechanism, including a mounting frame, a quick-change plate, a suction cup assembly, a floating positioning assembly, an elastic buffer assembly, and a pressure sensing assembly. The quick-change plate is mounted on the top of the mounting frame for rapid and automatic docking and switching with a robot. The suction cup assembly, mounted on the bottom of the mounting frame, is used to pick up the PCBA board. The floating positioning assembly is used to insert into the positioning holes of the PCBA board for precise positioning, achieving a repeatability accuracy of ±0.01mm. The elastic buffer assembly provides cushioning during assembly, eliminating fit errors. The pressure sensing assembly monitors assembly pressure in real time. This invention achieves rapid and automatic tooling changeover, high-precision flexible assembly of PCBA boards, and intelligent process monitoring, significantly improving production efficiency and product yield.

[0042] As stated above, this case protects a PCBA board tooling suction cup mechanism, and all technical solutions that are the same as or similar to this case should be considered to fall within the scope of protection of this case.

Claims

1. A PCBA board tooling suction cup mechanism, characterized in that, include: The mounting frame (1) is provided with an upper mounting plate (11), a middle floating plate (12) and a lower working plate (13) from top to bottom. The quick-switching disk (2) is fixedly connected to the top of the upper mounting plate (11) and is used to dock with the robot end effector; Multiple suction cup assemblies (3) are installed on the lower working plate (13), with their suction parts located below the lower working plate (13), for jointly picking up a PCBA board; At least two floating positioning components (4) are installed on the lower working plate (13), with their positioning parts located below the lower working plate (13), and are used to be inserted into the reserved positioning holes of the PCBA board for positioning before the suction cup assembly (3) picks up the PCBA board; The elastic buffer assembly (5) is connected between the middle floating plate (12) and the lower working plate (13) to provide buffering when the PCBA board is assembled with the target station; The pressure sensing component (6) is disposed between the lower working plate (13) and the middle floating plate (12) to detect the relative force generated by the deformation of the elastic buffer component (5) in real time, so as to monitor the PCBA board assembly pressure.

2. The PCBA board tooling suction cup mechanism according to claim 1, characterized in that, The upper mounting plate (11) of the mounting frame (1) is connected to the middle floating plate (12) by multiple vertical support columns (14); the elastic buffer assembly (5) and the pressure sensing assembly (6) are both installed between the middle floating plate (12) and the lower working plate (13); multiple suction cup assemblies (3) and at least two floating positioning assemblies (4) are all installed on the lower working plate (13), and the suction part of each suction cup assembly (3) and the positioning part of each floating positioning assembly (4) are located below the lower working plate (13).

3. The PCBA board tooling suction cup mechanism according to claim 1 or 2, characterized in that, Multiple limiting bolts (7) are also installed on the lower working plate (13); each limiting bolt (7) is rigidly connected to the lower working plate (13), a part of which extends out below the working plate (13), and the bottom is a plane; the bottom surfaces of the multiple limiting bolts (7) are on the same horizontal plane, and each limiting bolt (7) is connected to the lower working plate (13) by a nut (8).

4. The PCBA board tooling suction cup mechanism according to claim 1, characterized in that, The suction cup assembly (3) includes a suction cup connecting rod (31) that passes through the lower working plate (13) and a floating suction cup (32) connected to the bottom of the suction cup connecting rod (31).

5. The PCBA board tooling suction cup mechanism according to claim 1, characterized in that, Each floating positioning component (4) includes a floating pin (41) that can float vertically, the end of which is a positioning part (410) that is conical or spherical.

6. The PCBA board tooling suction cup mechanism according to claim 1, characterized in that, The elastic buffer assembly (5) is a spring floating bearing assembly, including: a top mounting head (51), a main shaft (52), a bearing sleeve (53), and a spring (54); the bearing sleeve (53) is inserted through the middle floating plate (12), the main shaft (52) is inserted through the bearing sleeve (53), the top of which is connected to the top mounting head (51), and the bottom is connected to the lower working plate (13); the top mounting head (51) is fitted and limited to the top end face of the bearing sleeve (53), and its diameter is larger than the internal through hole of the bearing sleeve (53) to prevent the main shaft (52) from falling downward; the bottom of the bearing sleeve (53) is connected to an annular gasket (55), and the spring (54) is sleeved on the outer periphery of the bottom of the main shaft (52) and sandwiched between the annular gasket (55) and the top surface of the lower working plate (13) to provide vertical elastic buffer force.

7. The PCBA board tooling suction cup mechanism according to claim 1, characterized in that, The pressure sensing component (6) is a pressure sensor. A surrounding block (9) is provided between the lower working plate (13) and the middle floating plate (12). The pressure sensor is embedded inside the surrounding block (9). When the elastic buffer component (5) is compressed or stretched due to the force of the lower working plate (13), it drives the middle floating plate (12) and the surrounding block (9) to move, so that the pressure sensor senses the pressure change.

8. The PCBA board tooling suction cup mechanism according to claim 1 or 7, characterized in that, The pressure sensing component (6) is connected to the center of the top surface of the lower working plate (13).

9. The PCBA board tooling suction cup mechanism according to claim 1, characterized in that, The areas of the upper mounting plate (11), the middle floating plate (12), and the lower working plate (13) increase sequentially, and there is space reserved between adjacent plates.

10. The PCBA board tooling suction cup mechanism according to claim 1, characterized in that, Of at least two floating positioning components (4), one is installed at a corner of the lower working plate (13), and the other is installed at the diagonal position of the floating positioning component (4) at the upper corner. The plurality of suction cup assemblies (3) are provided at least one in each corner and the middle area of ​​the working plate (13).

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