Transportation equipment for welded circuit board

Abstract

The embodiment of the invention provides transportation equipment for a welded circuit board, and relates to the field of circuit board transfer. Transportation equipment used after circuit board welding comprises a machine body, at least one linear driving module and a pickup assembly. The machine body comprises an upper machine frame and a lower machine frame, and a circuit board conveying space is formed between the upper machine frame and the lower machine frame; the linear driving modules are connected with the upper rack, the number of the pickup assemblies is the same as that of the linear driving modules, and the pickup assemblies are installed on the linear driving modules and used for picking up circuit boards. Through coordinated work of the linear driving module and the picking assembly, the problem that in the prior art, manpower is consumed in the conveying process is solved.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board transportation, and in particular to equipment for transporting circuit boards after welding. Background Art

[0002] Circuit boards are core components of electronic products, and their processing includes multiple steps such as welding, drilling, copper coating and surface treatment. Among them, the welding process is an important link in the processing of circuit boards. After welding, the circuit boards need to be quickly and smoothly transported to subsequent processes for further processing or testing. After welding, the circuit boards are usually at a higher temperature, and there are solder joints and precision electronic components on the surface, which puts higher requirements on the stability and stability of the conveying device and the protection of the circuit boards.

[0003] The existing circuit board conveying method mainly relies on conveyor belts. After welding is completed, the circuit board is transported to the target position by the conveyor belt, but it is usually necessary for the operator to manually remove it from the conveyor belt and place it on the carrier of the next process. For example, in the subsequent inspection, assembly or packaging process, the circuit board needs to be precisely positioned to complete the relevant operations. However, this manual operation method has obvious problems: first, it has high operating requirements for workers, and workers' nails can easily scratch the edges of the circuit board. In addition, since the circuit board is similar to a flat board surface, it is not easy for workers to pick it up. Secondly, manual operation is inefficient and cannot adapt to the high requirements of modern production lines for continuity and automation. Summary of the invention

[0004] According to an embodiment of the present invention, a post-soldering circuit board transportation device is provided to solve the problems raised by the above background technology.

[0005] In a first aspect of the present invention, a circuit board post-welding transport device is provided, comprising: a body, at least one linear drive module and a pick-up assembly; the body comprises an upper frame and a lower frame, and a circuit board transport space is formed between the upper frame and the lower frame; The linear drive module is connected to the upper frame, the number of the picking components is the same as the number of the linear drive modules, the picking components are installed on the linear drive module, and the picking components are used to pick up circuit boards.

[0006] Preferably, the linear drive module includes a guide rail, a slider, a motor, a driving pulley, a driven pulley and a transmission belt; the guide rail is fixedly connected to the upper frame, the motor is connected to the guide rail, the driving pulley is installed at the output end of the motor, the driven pulley is rotatably connected to the guide rail, and the transmission belt surrounds the driving pulley and the driven pulley; the slider is fixedly connected to the transmission belt, and the slider is fixedly connected to the pickup assembly.

[0007] Preferably, the picking assembly includes a mounting plate, a linear drive component, a lifting plate and a suction cup; the mounting plate is mounted on the linear drive module, the linear drive component is mounted on a side of the mounting plate away from the linear drive module, the output end of the linear drive component is connected to the lifting plate to drive the lifting plate to perform lifting and lowering movements, the suction cup is mounted on a side of the lifting plate away from the linear drive component, and the suction cup is used to absorb the circuit board.

[0008] Preferably, the linear drive member is a cylinder or a linear motor.

[0009] Preferably, the pickup assembly further comprises a guide rod mounted on the lifting plate and a linear bearing mounted on the mounting plate, wherein the guide rod passes through the linear bearing and is slidably connected to the linear bearing.

[0010] Preferably, the pickup assembly further comprises a negative pressure generating assembly, a clamping assembly and a distance sensor; the negative pressure generating assembly comprises an energy storage component, an electric control valve and an adsorption tube; the adsorption tube is connected to the suction cup, an end of the adsorption tube away from the suction cup passes through the lifting plate and is connected to the electric control valve, and an end of the electric control valve away from the adsorption tube is connected to the energy storage component; The clamping assembly includes two bending plates, two hinge shafts, two clamping plates, two supporting members, two guide members and a torsion spring; the two bending plates are fixedly connected to the lifting plate, the two hinge shafts are respectively fixedly connected to the two bending plates, the two clamping plates are respectively rotatably connected to the two hinge shafts, the torsion spring is sleeved on the hinge shaft, and the torsion spring is used to provide a rotational force for the clamping plates; the two supporting members are respectively fixedly connected to the two clamping plates, the two guide members are fixedly connected to the mounting plate, and the two guide members are provided with inclined surfaces, and one end of the two clamping plates away from the supporting members is in contact with the inclined surfaces.

[0011] Preferably, the energy storage component includes a cavity, a piston, a sleeve, a limit block and an extension rod; the cavity is connected to the mounting plate, the piston is arranged in the cavity, the sleeve is fixedly connected to the piston, the sleeve extends out of the cavity, the limit block is fixedly connected to the extension rod, the limit block is arranged in the sleeve to prevent the extension rod from detaching from the sleeve, one end of the extension rod away from the sleeve is fixedly connected to the lifting plate, and the electric control valve is connected to the side of the cavity away from the extension rod through a pipeline.

[0012] Preferably, the number of the suction cups is four, each of the suction cups is connected to an adsorption tube, the four adsorption tubes pass through the lifting plate and are connected to a five-way joint, and the electric control valve is connected to the five-way joint.

[0013] Preferably, a roller is provided at one end of the clamping plate away from the supporting member, and the roller is in contact with the inclined surface of the guide member.

[0014] Preferably, a control panel is provided on the upper frame, an openable inspection door is provided on the lower frame, and walking wheels are provided at the bottom of the lower frame.

[0015] One or more technical solutions provided in this application have at least the following technical effects or advantages: The present invention provides a post-welding circuit board transportation device, which solves the problem of labor-intensive transportation in the prior art through the coordinated work of a linear drive module and a pick-up component. The pick-up component and the linear drive module are used to automatically pick up and transport the circuit board, replacing the traditional manual handling method. After the circuit board is transported to the right place by the conveyor belt, the pick-up component can automatically clamp it and complete the transportation operation, thereby reducing manual intervention, reducing labor intensity, and improving production efficiency.

[0016] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein: Figure 1 A schematic diagram of the three-dimensional structure of a circuit board post-welding transportation device according to the first embodiment of the present invention is shown; Figure 2 A schematic diagram of the side structure of a circuit board post-welding transportation device according to the first embodiment of the present invention is shown; Figure 3 A schematic diagram of the connection structure of the linear drive module and the pickup assembly of the circuit board post-welding transportation device according to the first embodiment of the present invention is shown; Figure 4 A schematic diagram of the exploded structure of a linear drive module and a pickup assembly of a circuit board post-welding transportation device according to the first embodiment of the present invention is shown; Figure 5 It shows a schematic diagram of the front view structure of the pickup assembly of the circuit board post-welding transportation device according to the first embodiment of the present invention; Figure 6 It shows a three-dimensional structural schematic diagram of a circuit board post-welding transportation device according to the second embodiment of the present invention; Figure 7It shows a schematic diagram of the front view structure of the circuit board post-welding transportation equipment according to the second embodiment of the present invention; Figure 8 It shows a schematic side view of the structure of the circuit board post-welding transportation equipment according to the second embodiment of the present invention; Fig. 9 It shows a schematic structural diagram of the connection between the linear drive module and the pickup assembly of the circuit board post-welding transportation device according to the second embodiment of the present invention; Fig.10 A schematic diagram of the exploded structure of a linear drive module and a pickup assembly of a circuit board post-welding transportation device according to the second embodiment of the present invention is shown; Fig.11 A schematic diagram of the three-dimensional structure of a pick-up assembly of a circuit board post-welding transportation device according to the second embodiment of the present invention is shown; Fig.12 It shows a schematic diagram of the front view of the structure of the pick-up assembly of the circuit board transportation device after welding according to the second embodiment of the present invention in a state where the circuit board is not clamped; Fig.13 It shows a schematic diagram of the front view of the circuit board clamping state of the pickup assembly of the circuit board transportation device after welding according to the second embodiment of the present invention; Fig.14 It shows a schematic diagram of the three-dimensional structure of a clamping plate of a circuit board transportation device after welding according to the second embodiment of the present invention; Fig.15 It shows a schematic diagram of the three-dimensional structure of the negative pressure generating assembly of the circuit board post-welding transportation equipment according to the second embodiment of the present invention; Fig.16 A schematic diagram of a three-dimensional cross-sectional structure of an energy storage component of a circuit board transportation device after welding according to the second embodiment of the present invention is shown.

[0018] Description of Reference Numerals 1-body, 11-upper frame, 12-lower frame, 13-control panel, 14-inspection door, 15-walking wheel, 2-linear drive module, 21-guide rail, 22-slider, 23-motor, 24-driving pulley, 25-driven pulley, 26-transmission belt, 3-pickup assembly, 31-mounting plate, 32-linear drive member, 33-lifting plate, 34-suction cup, 35-guide rod, 36-linear bearing, 37-negative pressure generating assembly, 37 1-energy storage part, 3711-cavity, 3712-piston, 3713-sleeve, 3714-limiting block, 3715-extension rod, 372-electrically controlled valve, 373-adsorption tube, 374-five-way joint, 38-clamping assembly, 381-bending plate, 382-articulated shaft, 383-clamping plate, 384-supporting part, 385-guide part, 3851-inclined surface, 386-torsion spring, 387-roller, 39-distance sensor. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0021] Embodiment 1 like Figures 1 to 5 As shown, the present invention provides a circuit board post-welding transportation device, comprising: a body 1, at least one linear drive module 2 and a pick-up assembly 3. The body 1 is composed of an upper frame 11 and a lower frame 12, and a circuit board conveying space is formed between the upper frame 11 and the lower frame 12 to accommodate the conveying and picking operations of the circuit board. The linear drive module 2 is connected to the upper frame 11, and the pick-up assembly 3 is installed in conjunction with the linear drive module 2, and the number of the pick-up assemblies 3 is the same as the number of the linear drive modules 2.

[0022] This equipment is designed for circuit boards after welding. It is suitable for automatically picking up circuit boards that have been welded but still need subsequent inspection, assembly or packaging from the conveyor belt and accurately transporting them to the next process. Circuit boards after welding usually have solder joints on the surface and may have high temperatures. Therefore, the design of this equipment fully considers the stable protection of the circuit board to avoid damage or scratches to the solder joints caused by traditional manual handling, while achieving efficient and accurate automatic transportation.

[0023] When in use, the existing conveyor belt structure is extended into the circuit board conveying space, and the circuit board is moved into the conveying space through the conveyor belt structure. When the circuit board reaches the specified position, the pick-up component 3 of the linear drive module 2 is located directly above the conveyor belt. Specifically, the pick-up component 3 is started according to the set instructions and descends in the vertical direction. The clamping structure or adsorption structure of the pick-up component 3 clamps or adsorbs the circuit board after contacting it to ensure that the circuit board can be stably picked up.

[0024] Then, the linear drive module 2 drives the pick-up assembly 3 to move in the horizontal direction. While clamping the circuit board, the pick-up assembly 3 separates from the conveyor belt and moves along a predetermined path under the action of the linear drive module 2. Through the precise positioning of the linear drive module 2, the pick-up assembly 3 can accurately transport the circuit board to the target position.

[0025] When the pick-up component 3 reaches the target position, the pick-up component 3 releases the circuit board. The release process can be achieved by unlocking the mechanical structure or eliminating the adsorption force, ensuring that the circuit board can be stably placed on the carrier at the target position. After the release is completed, the pick-up component 3 returns to the initial position and prepares for the next pick-up operation.

[0026] Through the coordinated work of the linear drive module 2 and the pick-up assembly 3, the problems of low manual handling efficiency, high labor intensity, and easy scratches on the surface of the circuit board or damage to the solder joints in the transportation process of the soldered circuit board in the prior art are solved. The pick-up assembly 3 and the linear drive module 2 are used to realize automatic picking and stable transportation of the soldered circuit board, replacing the traditional manual transportation method. After the soldered circuit board is transported to the right place on the conveyor belt, the pick-up assembly 3 can automatically clamp it and complete the transportation operation, thereby reducing manual intervention, reducing labor intensity, and improving production efficiency.

[0027] In this embodiment, the linear drive module 2 includes a guide rail 21, a slider 22, a motor 23, a driving pulley 24, a driven pulley 25 and a transmission belt 26. The guide rail 21 is fixedly mounted on the upper frame 11. The motor 23 is mounted on the guide rail 21, and its output end is fixedly connected to the driving pulley 24 to provide transmission power. The driven pulley 25 is rotatably connected to the other end of the guide rail 21 through a bearing. The transmission belt 26 is wrapped around the driving pulley 24 and the driven pulley 25 to form a closed transmission structure for transmitting power.

[0028] The slider 22 is slidably disposed on the guide rail 21 and fixedly connected to the transmission belt 26. The slider 22 is fixedly connected to the pickup assembly 3, and the pickup assembly 3 realizes linear motion along the guide rail 21 through the sliding motion of the slider 22, thereby completing the picking and conveying operation of the circuit board.

[0029] When in use, the motor 23 is started, and the motor 23 drives the driving pulley 24 to rotate through its output end, and the driving pulley 24 drives the transmission belt 26 to move on the closed path. The movement of the transmission belt 26 further drives the slider 22 fixedly connected thereto to slide on the guide rail 21. At the same time, the slider 22, through its connection with the pickup assembly 3, moves the pickup assembly 3 linearly along the direction of the guide rail 21, thereby realizing the driving of the pickup assembly 3.

[0030] In this embodiment, the pickup assembly 3 includes a mounting plate 31, a linear drive member 32, a lifting plate 33 and a suction cup 34. The mounting plate 31 is fixedly mounted on the slider 22 of the linear drive module 2 and moves synchronously with the movement of the linear drive module 2. The linear drive member 32 is fixedly mounted on the side of the mounting plate 31 away from the linear drive module 2, and the output end of the linear drive member 32 is connected to the lifting plate 33 to drive the lifting plate 33 to move up and down in the vertical direction. The suction cup 34 is mounted on the side of the lifting plate 33 away from the linear drive member 32, and the suction cup 34 is connected to a negative pressure source to provide an adsorption force for sucking the circuit board.

[0031] When in use, when the pickup assembly 3 moves to the top of the circuit board, the linear drive 32 is started, and the output end pushes the lifting plate 33 to move downward, and the lifting plate 33 drives the suction cup 34 to descend together. As the suction cup 34 gradually approaches the circuit board, the negative pressure source starts to work, so that the suction cup 34 has an adsorption force. When the suction cup 34 contacts the circuit board, the circuit board is sucked by the negative pressure to ensure that the circuit board can be stably picked up.

[0032] Then, the linear drive member 32 drives in the reverse direction, driving the lifting plate 33 and the suction cup 34 to move upward together with the circuit board, so that the circuit board is out of the original position. At this time, the linear drive module 2 is started, and the pick-up assembly 3 is driven by the slider 22 to move linearly along the guide rail 21 to realize the transportation of the circuit board.

[0033] When the pick-up assembly 3 moves to the target position, the linear drive 32 is started again, and the output end drives the lifting plate 33 to move downward, and the suction cup 34 then descends and places the circuit board precisely at the target position. Subsequently, the negative pressure source is turned off, the suction cup 34 cancels the adsorption effect, and the circuit board is released onto the carrier or processing station. After the release is completed, the lifting plate 33 is driven by the linear drive 32 to return to the initial position, and the pick-up assembly 3 returns to its original position, ready for the next pick-up operation.

[0034] The vertical movement of the lifting plate 33 is achieved through the linear drive 32, and the negative pressure adsorption of the suction cup 34 ensures that the circuit board picking and releasing process is stable and reliable. The suction cup 34 provides a flexible adsorption force, which effectively avoids scratches or damage to the surface of the circuit board and improves the safety of the conveying process. The coordinated action of the linear drive module 2 and the picking component 3 realizes the accurate picking, stable conveying and efficient release of the circuit board, greatly improving the automation level and production efficiency of the production line.

[0035] Among them, the negative pressure source achieves the function of adsorbing or fixing objects by creating a pressure lower than the ambient atmospheric pressure. The negative pressure source has been widely used in handling equipment, vacuum adsorption systems and other automated devices. For example, vacuum suction cups are often used to transport glass, metal plates and electronic components, etc., which will not be described in detail here.

[0036] In this embodiment, the linear drive member 32 may be a cylinder or a linear motor, which is used to drive the lifting plate 33 to move in a vertical direction, thereby achieving lifting and lowering control of the suction cup 34 to complete the picking and releasing operations of the circuit board.

[0037] In this embodiment, the pickup assembly 3 further includes a guide rod 35 and a linear bearing 36 to further improve the motion stability of the lifting plate 33 during the lifting process. Specifically, the guide rod 35 is fixedly installed at multiple positions of the lifting plate 33, and the other end of the guide rod 35 passes through the linear bearing 36 installed on the mounting plate 31 and is slidably connected to the linear bearing 36. Through the sliding cooperation between the guide rod 35 and the linear bearing 36, the motion trajectory of the lifting plate 33 is limited, so that it remains stable during the lifting process and avoids tilting or shaking.

[0038] Among them, there are four guide rods 35, which are evenly distributed at the four corners of the lifting plate 33. The guide rods 35 can effectively prevent the lifting plate 33 from deflecting or vibrating due to uneven force during vertical movement, thereby ensuring that the suction cup 34 can accurately contact the circuit board and complete the picking action.

[0039] When in use, the linear drive member 32 is activated to drive the lifting plate 33 to move in the vertical direction. While the lifting plate 33 is lifting and lowering under the action of the linear drive member 32, the guide rod 35 slides in the linear bearing 36 to provide a smooth guiding effect. Since the sliding cooperation between the guide rod 35 and the linear bearing 36 can effectively limit the lateral displacement and rotational tilt of the lifting plate 33, the lifting plate 33 always remains parallel to the guide rail 21, ensuring that the suction cup 34 can accurately complete the action of adsorbing or releasing the circuit board.

[0040] Embodiment 2 like Figures 6 to 16As shown, compared with the first embodiment, the present embodiment is different in that the pick-up assembly 3 further includes a negative pressure generating assembly 37, a clamping assembly 38 and a distance sensor 39. The negative pressure generating assembly 37 includes an energy storage component 371, an electric control valve 372 and an adsorption tube 373. One end of the adsorption tube 373 is connected to the suction cup 34, and the other end is connected to the electric control valve 372 after passing through the lifting plate 33. The end of the electric control valve 372 away from the adsorption tube 373 is connected to the energy storage component 371 to form a closed negative pressure circuit. The energy storage component 371 is used to generate and store negative pressure during operation to provide a stable adsorption force; the electric control valve 372 controls the opening and closing of the negative pressure through an electrical signal to ensure that the suction cup 34 adsorbs the circuit board as needed. The distance sensor 39 is installed below the pick-up assembly 3 to monitor the distance between the circuit board and the pick-up assembly 3 (suction cup 34) in real time. The distance sensor 39 outputs a signal feedback control system to ensure that the suction cup 34 achieves accurate adsorption when approaching the circuit board, and can adjust the movement range of the lifting plate 33 by detecting the distance to avoid misoperation or excessive contact.

[0041] When the pick-up assembly 3 moves to the top of the circuit board, the linear drive 32 drives the lifting plate 33 to move downward, and the adsorption tube 373 moves with the lifting plate 33. At this time, the negative pressure generating assembly 37 is activated, and the energy storage component 371 forms a negative pressure during the lifting process, and transmits the negative pressure to the suction cup 34 through the adsorption tube 373, so that the suction cup 34 has an adsorption force. Specifically, when the linear drive 32 drives the lifting plate 33 to move downward, the lifting plate 33 causes the energy storage component 371 to form a negative pressure to store energy, wherein the distance sensor 39 is used to monitor the distance from the circuit board to the distance sensor 39.

[0042] The clamping assembly 38 includes two bending plates 381, two hinge shafts 382, ​​two clamping plates 383, two supporting members 384, two guide members 385 and a torsion spring 386. Specifically, the two bending plates 381 are symmetrically fixedly installed on the lifting plate 33 to support the hinge shafts 382. The two hinge shafts 382 are respectively fixedly connected to the two bending plates 381 and serve as rotation fulcrums of the clamping plates 383. The two clamping plates 383 are rotatably connected to the hinge shafts 382 and can rotate around the hinge shafts 382 during the up and down movement of the lifting plate 33.

[0043] The torsion spring 386 is sleeved on the hinge shaft 382 to provide a torsion force for the clamping plate 383 so that the clamping plate 383 has the ability to automatically reset. The two supporting members 384 are respectively fixedly connected to the lower parts of the two clamping plates 383 to provide stable support for the circuit board. The two guide members 385 are fixedly mounted on the mounting plate 31, and each guide member 385 is provided with an inclined surface 3851 to guide the rotational movement of the clamping plate 383.

[0044] When the linear drive member 32 drives the lifting plate 33 to move downward, the torsion spring 386 provides a torsion force for the two clamping plates 383, so that the two clamping plates 383 are Fig.12 As shown in the state, as the lifting plate 33 moves downward, the torsion spring 386 causes the upper sides of the two clamping plates 383 to move along the inclined surface 3851 of the guide member 385, and the lower sides of the two clamping plates 383 gradually move away from each other and move in an open manner. At this time, the circuit board is not clamped. Fig.12 As shown. When the suction cup 34 contacts the circuit board, the distance sensor 39 detects that the distance between the circuit board and the suction cup 34 reaches the set threshold, and the controller (not shown in the figure) receives the trigger signal and controls the electric control valve 372 to open. Since the energy storage member 371 is in a negative pressure state, the suction cup 34 obtains the adsorption force through the adsorption tube 373 and quickly adsorbs the circuit board. After the adsorption is completed, the linear drive member 32 drives the lifting plate 33 to move upward, driving the suction cup 34 and the circuit board to move upward together. Then the linear drive member 32 will drive the lifting plate 33 to move upward. During the upward movement of the lifting plate 33, the lifting plate 33 will drive the two clamping plates 383 to move upward. Under the guidance of the inclined surface 3851 of the guide member 385, the clamping plate 383 is prompted to rotate. At the same time, the energy storage member 371 gradually releases energy and gradually reduces the adsorption capacity of the suction cup 34 until the adsorption force is insufficient to adsorb the circuit board; at the same time, the clamping plate 383 clamps the circuit board, and the supporting members 384 on both sides support the circuit board. At this time, the suction cup 34 no longer adsorbs the circuit board. After clamping is completed, the linear drive module 2 drives the pickup assembly 3 to move linearly along the guide rail 21 to stably transport the circuit board to the target position. At the target position, the linear drive member 32 drives the lifting plate 33 to move downward again, and the clamping plate 383 gradually opens under the action of the guide member 385, releasing the circuit board, and completing the transport operation.

[0045] The supporting member 384 is made of rubber material. The high friction coefficient of the rubber material can enhance the support stability of the circuit board and prevent sliding or tilting during transportation. At the same time, the soft nature of the rubber can also avoid damage to the circuit board. The controller is an industrial multifunctional controller, such as an existing programmable logic controller (PLC) or an embedded microprocessor, and its working principle will not be described in detail here.

[0046] In this embodiment, the linear drive member 32 is a cylinder. The energy storage member 371 includes a cavity 3711, a piston 3712, a sleeve 3713, a limit block 3714 and an extension rod 3715. The cavity 3711 is connected to the mounting plate 31, the piston 3712 is arranged in the cavity 3711, the sleeve 3713 is fixedly connected to the piston 3712, the sleeve 3713 extends out of the cavity 3711, the limit block 3714 is fixedly connected to the extension rod 3715, the limit block 3714 is arranged in the sleeve 3713, and is used to prevent the extension rod 3715 from being separated from the sleeve 3713, and one end of the extension rod 3715 away from the sleeve 3713 is fixedly connected to the lifting plate 33, and the electric control valve 372 is connected to the side of the cavity 3711 away from the extension rod 3715 through a pipeline.

[0047] Furthermore, when the linear drive member 32 drives the lifting plate 33 to move downward, the electric control valve 372 is in a closed state, and the cavity 3711 remains sealed. At this time, the extension rod 3715 moves downward together with the lifting plate 33, and the piston 3712 temporarily remains stationary due to the negative pressure formed inside the cavity 3711. After the limit block 3714 of the extension rod 3715 moves to the end of the sleeve 3713 away from the cavity 3711 and is clamped, the extension rod 3715 drives the sleeve 3713 and the piston 3712 to continue to move downward. As the piston 3712 moves downward, the volume in the cavity 3711 gradually increases, and the negative pressure gradually forms and accumulates energy. When the lifting plate 33 moves to the right position and makes the suction cup 34 contact with the circuit board, the distance sensor 39 detects the position of the circuit board and sends a signal to the controller, and the controller instructs the electric control valve 372 to open. The negative pressure in the cavity 3711 is transmitted to the suction cup 34 through the adsorption tube 373, so that the suction cup 34 generates an adsorption force and adsorbs the circuit board. The lifting plate 33 then moves upward under the drive of the linear drive member 32, and the extension rod 3715 drives the sleeve 3713 and the piston 3712 to gradually move upward. As the piston 3712 moves upward, the negative pressure space in the cavity 3711 gradually decreases, and the negative pressure is gradually released. During this process, the adsorption force of the suction cup 34 gradually weakens. At the same time, when the adsorption force of the suction cup 34 is not enough to adsorb the circuit board, the circuit board falls onto the supporting member 384. As the lifting plate 33 continues to move upward, the supporting members 384 of the two clamping plates 383 gradually approach and clamp the side of the circuit board.

[0048] Subsequently, the linear drive module 2 drives the pick-up assembly 3 and the circuit board to move linearly along the guide rail 21, and transports the circuit board to the target position. When the target position is reached, the linear drive member 32 drives the lifting plate 33 to move down again, at which time the clamping plate 383 gradually opens, releasing the circuit board, and the circuit board falls to the target area. The lifting plate 33 continues to move up and back to the initial position, and at the same time the electric control valve 372 is closed to re-accumulate energy and form negative pressure for the next operation. The pick-up assembly 3 is returned to the initial position by the linear drive module 2, ready for the next pick-up operation.

[0049] In this embodiment, there are four suction cups 34, which are evenly distributed on the lower surface of the lifting plate 33 to form a stable adsorption structure to ensure the balance and reliability of the circuit board during the picking and transportation process. Each suction cup 34 is connected to the negative pressure system through an independent adsorption tube 373. After passing through the lifting plate 33, the four adsorption tubes 373 are connected to the five-way joint 374 provided above the lifting plate 33. One input end of the five-way joint 374 is connected to the output end of the electric control valve 372 to form a unified negative pressure transmission path.

[0050] In this embodiment, a roller 387 is provided at one end of the clamping plate 383 away from the supporting member 384, and the roller 387 contacts the inclined surface 3851 of the guide member 385. The roller 387 is installed on the top of the clamping plate 383, and is rotatably connected to the clamping plate 383 through a bearing support structure, so that it can roll smoothly along the inclined surface 3851 of the guide member 385 during the movement of the clamping plate 383. By providing the roller 387, not only the friction resistance between the clamping plate 383 and the guide member 385 is reduced, but also the movement stability and life of the clamping plate 383 during the opening and closing process can be improved.

[0051] In this embodiment, a control panel 13 is provided on the upper frame 11 to provide an operation and display interface for the device. The controller is embedded in the control panel 13, and the control panel 13 is equipped with input devices such as a touch screen, buttons or knobs, and a status indicator light or display screen for real-time monitoring and adjustment of the operating status of the device. The controller receives operating instructions through the control panel 13 and performs corresponding actions to ensure that the operation of the device is simple and intuitive. An openable inspection door 14 is provided on the lower frame 12 to facilitate maintenance personnel to inspect and repair the internal electrical components, pneumatic pipelines, and air source triplexes of the equipment for inspection and maintenance. In order to facilitate the movement and position adjustment of the equipment, a walking wheel 15 is provided at the bottom of the lower frame 12. The walking wheel 15 adopts a universal wheel structure and is equipped with a brake device, which can not only meet the flexible movement requirements of the equipment, but also ensure the stability of the equipment through the brake function during operation.

[0052] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and 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 circuit board post-welding transportation device, characterized in that: include: A machine body (1), at least one linear drive module (2) and a pick-up assembly (3); the machine body (1) comprises an upper frame (11) and a lower frame (12), and a circuit board conveying space is formed between the upper frame (11) and the lower frame (12); The linear drive module (2) is connected to the upper frame (11), the number of the pick-up components (3) is the same as the number of the linear drive modules (2), the pick-up components (3) are mounted on the linear drive module (2), and the pick-up components (3) are used to pick up circuit boards.

2. The circuit board post-welding transportation equipment according to claim 1, characterized in that: The linear drive module (2) comprises a guide rail (21), a slider (22), a motor (23), a driving pulley (24), a driven pulley (25) and a transmission belt (26); the guide rail (21) is fixedly connected to the upper frame (11), the motor (23) is connected to the guide rail (21), the driving pulley (24) is mounted on the output end of the motor (23), the driven pulley (25) is rotatably connected to the guide rail (21), and the transmission belt (26) surrounds the driving pulley (24) and the driven pulley (25); the slider (22) is fixedly connected to the transmission belt (26), and the slider (22) is fixedly connected to the pickup assembly (3).

3. The circuit board post-welding transportation equipment according to claim 1, characterized in that: The pickup assembly (3) comprises a mounting plate (31), a linear drive component (32), a lifting plate (33) and a suction cup (34); the mounting plate (31) is mounted on the linear drive module (2); the linear drive component (32) is mounted on a side of the mounting plate (31) away from the linear drive module (2); an output end of the linear drive component (32) is connected to the lifting plate (33) for driving the lifting plate (33) to perform lifting motion; the suction cup (34) is mounted on a side of the lifting plate (33) away from the linear drive component (32); and the suction cup (34) is used to absorb the circuit board.

4. The circuit board post-welding transportation equipment according to claim 3, characterized in that: The linear drive component (32) is a cylinder or a linear motor.

5. The circuit board post-welding transportation equipment according to claim 3, characterized in that: The pickup assembly (3) further comprises a guide rod (35) mounted on the lifting plate (33) and a linear bearing (36) mounted on the mounting plate (31); the guide rod (35) passes through the linear bearing (36) and is slidably connected to the linear bearing (36).

6. The circuit board post-welding transportation equipment according to claim 3, characterized in that: The picking assembly (3) further comprises a negative pressure generating assembly (37), a clamping assembly (38) and a distance sensor (39); the negative pressure generating assembly (37) comprises an energy storage component (371), an electric control valve (372) and an adsorption tube (373); the adsorption tube (373) is connected to the suction cup (34); an end of the adsorption tube (373) away from the suction cup (34) passes through the lifting plate (33) and is connected to the electric control valve (372); an end of the electric control valve (372) away from the adsorption tube (373) is connected to the energy storage component (371); The clamping assembly (38) comprises two bending plates (381), two hinge shafts (382), two clamping plates (383), two supporting members (384), two guide members (385) and a torsion spring (386); the two bending plates (381) are fixedly connected to the lifting plate (33), the two hinge shafts (382) are respectively fixedly connected to the two bending plates (381), the two clamping plates (383) are respectively rotatably connected to the two hinge shafts (382), and the torsion spring (386) is fixedly connected to the lifting plate (33). (386) is sleeved on the hinge shaft (382), and the torsion spring (386) is used to provide a rotational force for the clamping plate (383); the two supporting members (384) are fixedly connected to the two clamping plates (383) respectively, and the two guiding members (385) are fixedly connected to the mounting plate (31), and the two guiding members (385) are provided with an inclined surface (3851), and one end of the two clamping plates (383) away from the supporting member (384) is in contact with the inclined surface (3851).

7. The circuit board post-welding transportation equipment according to claim 6, characterized in that: The energy storage component (371) comprises a cavity (3711), a piston (3712), a sleeve (3713), a limit block (3714) and an extension rod (3715); the cavity (3711) is connected to the mounting plate (31), the piston (3712) is disposed in the cavity (3711), the sleeve (3713) is fixedly connected to the piston (3712), the sleeve (3713) extends out of the cavity (3711), and the limit block (3714) is fixedly connected to the extension rod (3715), the limit block (3714) is arranged in the sleeve (3713) to prevent the extension rod (3715) from being separated from the sleeve (3713), the end of the extension rod (3715) away from the sleeve (3713) is fixedly connected to the lifting plate (33), and the electric control valve (372) is connected to the side of the cavity (3711) away from the extension rod (3715) through a pipeline.

8. The circuit board post-welding transportation equipment according to claim 6, characterized in that: There are four suction cups (34), each of which is connected to an adsorption tube (373), the four adsorption tubes (373) pass through the lifting plate (33) and are connected to a five-way joint (374), and the electric control valve (372) is connected to the five-way joint (374).

9. The circuit board post-welding transportation equipment according to claim 6, characterized in that: A roller shaft (387) is provided at one end of the clamping plate (383) away from the supporting member (384), and the roller shaft (387) is in contact with the inclined surface (3851) of the guide member (385).

10. The circuit board post-welding transportation equipment according to claim 1, characterized in that: The upper frame (11) is provided with a control panel (13), the lower frame (12) is provided with an openable inspection door (14), and the bottom of the lower frame (12) is provided with walking wheels (15).

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