Feeding and lifting device and circuit board mutual transfer machine

Abstract

The utility model belongs to the technical field of electronic manufacturing automation equipment, concretely relates to feeding lifting device and circuit board mutual conversion machine, feeding lifting device includes lifting drive assembly, mounting support, bottom plate subassembly, forked supporting plate subassembly and center beating plate positioning assembly, lifting drive assembly drives mounting support to predetermined height position, bottom plate subassembly includes installation bottom plate and supporting plate drive assembly, and supporting plate drive assembly sets up on installation bottom plate, forked supporting plate subassembly is slidably arranged on the upper surface of installation bottom plate, center beating plate positioning assembly is mirror image setting in the both sides of forked supporting plate subassembly, and supporting plate drive assembly is transmission connection with forked supporting plate subassembly. The utility model adjusts mounting support height through lifting drive assembly to adapt to different equipment, realizes circuit board centering positioning with center beating plate positioning assembly, and accurate conveying is completed in combination with forked supporting plate subassembly and supporting plate drive assembly, has the advantages such as height adaptability improvement, realizes non - destructive accurate positioning and improves production efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of electronic manufacturing automation equipment, specifically relating to a feeding lifting device and a circuit board rotating machine. Background Technology

[0002] In the automated production, testing, and transfer of printed circuit boards (PCBs), it is typically necessary to move and position the boards between different workstations or equipment. Existing feeding mechanisms are relatively simple in function and have several limitations: First, the worktable heights of different processing or testing equipment vary, making it difficult for fixed-height conveyor mechanisms to adapt. This necessitates complex overall equipment adjustments or manual intervention, resulting in low efficiency and poor flexibility. Second, PCBs require precise centering and positioning before entering precision equipment (such as testing machines). Traditional methods using fixed stops are prone to damage to board edges or components due to rigid impacts, leading to insufficient positioning accuracy and reliability. Therefore, the industry urgently needs a highly integrated, precise, flexible, and non-destructive automated feeding and lifting solution to improve the overall efficiency of the production line. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a feeding lifting device, which has the advantages of improving height adaptability, achieving non-destructive and accurate positioning, integrating multi-functional modules and improving production efficiency.

[0004] This application provides a feeding lifting device, the technical solution of which is as follows: A feeding lifting device includes a lifting drive assembly, a mounting bracket, a base plate assembly, a fork-shaped pallet assembly, and a central tapping plate positioning assembly; the lifting drive assembly is fixedly mounted on the frame and is used to drive the mounting bracket to a predetermined height position; the base plate assembly is fixedly disposed on the top of the mounting bracket, and the base plate assembly includes a mounting base plate and a pallet drive assembly, the pallet drive assembly being disposed on the mounting base plate; the fork-shaped pallet assembly is slidably disposed on the upper surface of the mounting base plate and is used to support the circuit board; the central tapping plate positioning assembly is mirror-displayed on both sides of the fork-shaped pallet assembly and is used to center and position the circuit board on the fork-shaped pallet assembly; the pallet drive assembly is drively connected to the fork-shaped pallet assembly and is used to drive the fork-shaped pallet assembly to reciprocate in a predetermined direction.

[0005] Furthermore, this application also proposes that the lifting drive assembly includes a screw module and a first drive device. The screw module is mounted vertically on the frame via a first mounting plate. The first drive device is connected to the screw module for driving the lifting slider on the screw module to move up and down when the first drive device is running. The lifting slider is fixedly connected to the mounting bracket.

[0006] Furthermore, this application also proposes that the center plate positioning assembly includes a second driving device, a first linear guide rail, a second mounting plate, and a guide post; two first linear guide rails are provided, and the two first linear guide rails are arranged parallel to each other on the upper surface of the mounting base plate; the second mounting plate is mounted across the sliders of the two first linear guide rails; the second driving device is located on the lower surface of the mounting base plate, and the power output end of the second driving device is connected to the second mounting plate through a reserved hole in the mounting base plate; the guide post is fixedly mounted on the second mounting plate and is used to center and position the circuit board when the second driving device is running.

[0007] Furthermore, this application also proposes that the guide post includes a fixed post, a bearing, and a sleeve arranged coaxially; a plurality of fixed posts are provided, and the plurality of guide posts are arranged in a straight line along the extension direction of the second mounting plate; the bearing is provided at the upper end of the fixed post, and the sleeve is sleeved on the outside of the bearing.

[0008] Furthermore, this application also proposes that the fork-shaped pallet assembly includes a left pallet group, a right pallet group, a third mounting plate, a second linear guide rail, and a photoelectric sensor; two second linear guide rails are provided, and the two second linear guide rails are arranged parallel to each other on the upper surface of the mounting base plate; the third mounting plate is mounted across the sliders of the two second linear guide rails; the left pallet group and the right pallet group are respectively fixed at both ends of the third mounting plate by a fixing bracket; the photoelectric sensor is set on the left pallet group or the right pallet group for detecting the placement of the circuit board.

[0009] Furthermore, this application proposes that the pallet drive assembly includes a third drive device, a fixed base, a driving synchronous pulley, a driven synchronous pulley, and a synchronous belt. The third drive device and the driven synchronous pulley are respectively mounted on the mounting base plate via the fixed base. The driven synchronous pulley is rotatably connected to the fixed base via a bearing. The driving synchronous pulley is fixedly mounted on the output shaft of the third drive device. The synchronous belt is engaged between the driving synchronous pulley and the driven synchronous pulley. The third mounting plate is fixedly connected to the synchronous belt via a clamping plate, and is used to drive the third mounting plate to move when the third drive device is running.

[0010] Furthermore, this application also proposes to include a limit switch assembly disposed on the mounting base plate, the limit switch assembly having a switch sensor and a sensor mounting base, the switch sensor being disposed at the start and end points of the moving path of the fork-shaped pallet assembly via the sensor mounting base; the switch sensor is electrically connected to the third drive device, and an interference component corresponding to the switch sensor is disposed below the third mounting plate for triggering the switch sensor when it passes through; the switch sensor is a slot-type photoelectric sensor.

[0011] Furthermore, this application also proposes to include a code reading device, which is mounted on the mounting base plate via a fixed frame and is located above the fork-shaped tray assembly for reading identification codes on the circuit board.

[0012] Furthermore, this application also proposes to include an electrostatic eliminator disposed on the other side of the fixed frame relative to the code reader for eliminating static electricity associated with the circuit board.

[0013] Furthermore, this application also provides a circuit board interchange machine, including the above-mentioned feeding lifting device, with the two feeding lifting devices arranged in a mirror image on the frame.

[0014] The present invention provides a feeding lifting device and a circuit board rotating machine, which adjusts the height of the mounting bracket through the lifting drive component to adapt to different equipment, uses the center plate positioning component to achieve non-destructive centering and positioning of the circuit board, and combines the fork-shaped pallet component and pallet drive component to complete precise conveying. It has the advantages of improving height adaptability, achieving non-destructive and precise positioning, integrating multi-functional modules and improving production efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram showing the overall structure of the present invention;

[0017] Figure 2 A schematic diagram showing the structure of the base plate assembly and the center clapper positioning assembly of this utility model;

[0018] Figure 3 This is a schematic diagram showing the structure of the central clapper positioning component of this utility model;

[0019] Figure 4 A schematic diagram showing the structure of the fork-shaped pallet assembly of this utility model;

[0020] Figure 5 A schematic diagram showing the structure of the base plate assembly and the limit switch assembly of this utility model;

[0021] Figure 6 A schematic diagram showing the structure of the code reading device and the static eliminator of this utility model;

[0022] Figure 7 This is a schematic diagram showing the structure of the feeding lifting device of this utility model installed on the machine frame.

[0023] The symbols in the attached image are explained as follows:

[0024] 1-Lifting drive assembly; 11-Screw module; 12-First drive device;

[0025] 2- Mounting bracket;

[0026] 3-Base plate assembly; 31-Mounting base plate; 32-Panel drive assembly; 321-Third drive device; 322-Fixed seat; 323-Driving synchronous pulley; 324-Driven synchronous pulley; 325-Synchronous belt;

[0027] 4-Fork-shaped pallet assembly; 41-Left pallet assembly; 42-Right pallet assembly; 43-Third mounting plate; 44-Second linear guide rail; 45-Photoelectric sensor; 46-Pressure plate;

[0028] 5-Central clapper positioning assembly; 51-Second drive device; 52-First linear guide rail; 53-Second mounting plate; 54-Guide post; 541-Fixing post; 542-Sleeve;

[0029] 6-Rack;

[0030] 7-Circuit board;

[0031] 8-Limit switch assembly; 81-Switch sensor; 82-Sensor mounting base;

[0032] 9-Code reading device; 91-Fixed frame;

[0033] 10- Static Eliminator. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please refer to Figures 1-7 This application proposes a technical solution including a lifting drive assembly 1, a mounting bracket 2, a base plate assembly 3, a fork-shaped pallet assembly 4, and a center plate positioning assembly 5; the lifting drive assembly 1 is fixed on the frame 6 and drives the mounting bracket 2 to a predetermined height; the fork-shaped pallet assembly 4 is slidably mounted on the surface of the mounting base plate 31 to support the circuit board 7; the center plate positioning assembly 5 is symmetrically distributed on both sides of the fork-shaped pallet assembly 4 to achieve center positioning of the circuit board 7; the pallet drive assembly 32 is connected to the conveying pallet and drives it to reciprocate along a set direction.

[0036] Among them, the lifting drive component 1 refers to the power mechanism that realizes vertical position adjustment, which can be a combination of screw module 11 and drive motor, and achieves precise lifting control through mechanical transmission; the mounting bracket 2 refers to the support frame that carries the functional components and provides a stable installation platform for the base plate component 3; the base plate component 3 refers to the base unit that integrates the drive mechanism, including the mounting base plate 31 and the pallet drive component 32, and the surface of the mounting base plate 31 is provided with an installation reference surface; the fork pallet component 4 refers to the transfer component that carries the circuit board 7, specifically implemented as a split left pallet group 41 and right pallet group 42, and the surface can be provided with anti-slip texture or a buffer material layer; the center plate positioning component 5 refers to the symmetrically arranged positioning mechanism, which adopts a linear guide rail and guide column 54 structure, and achieves bidirectional clamping positioning through synchronous drive.

[0037] Understandably, after the circuit board 7 is placed on the surface of the fork-shaped pallet assembly 4, the lifting drive assembly 1 adjusts the position of the mounting bracket 2 according to the height of the target equipment; the pallet drive assembly 32 drives the conveying pallet to move along the linear guide rail to the preset work station, and the two sets of guide columns 54 of the center plate positioning assembly 5 move synchronously towards each other, pushing the circuit board 7 to the center position through rolling contact; after positioning is completed, the conveying pallet continues to move the circuit board 7 to the working area of ​​the target equipment; the whole process achieves coordinated operation of height adjustment, horizontal conveying, and precise positioning through mechanical linkage. This application realizes adaptive adjustment of equipment height, compatible with processing and testing equipment of different specifications; the bidirectional synchronous positioning mechanism ensures that the center position accuracy of the circuit board 7 is controlled within the process requirements range, eliminating the risk of component damage caused by unilateral force application; the modular structure design improves the convenience of equipment maintenance, shortens the production line changeover adjustment time, and significantly improves the operating efficiency of the electronic manufacturing automated production line.

[0038] Please refer to Figure 1 This application further proposes a lifting drive assembly 1 including a screw module 11 and a first drive device 12. The screw module 11 is mounted on the frame 6 in a vertical direction via a first mounting plate. The first drive device 12 is connected to the screw module 11 for transmission and is used to drive the lifting slider on the screw module 11 to move up and down when the first drive device 12 is running. The lifting slider is fixedly connected to the mounting bracket 2.

[0039] The first drive device 12 refers to the power source, which can be implemented by a servo motor or a stepper motor, and is used to provide the torque required for the screw rotation; the first mounting plate refers to the support structure used to fix the screw module 11, and is connected to the frame 6 by bolts; the lifting slider refers to the moving part in the screw module 11, which can be a metal block with a slide rail interface, and is used to transmit the linear motion of the screw to the mounting bracket 2.

[0040] Understandably, the screw module 11 is vertically fixed to the frame 6 via the first mounting plate. When the first drive device 12 drives the screw to rotate, the lifting slider moves up and down along the screw axis. Since the lifting slider is rigidly connected to the mounting bracket 2, the mounting bracket 2 and its supporting base plate assembly 3 and fork-shaped support plate assembly 4 can rise and fall synchronously with the lifting slider. This structure achieves height adjustment through mechanical transmission, and the movement trajectory is controlled by the screw lead accuracy, enabling it to accurately reach the predetermined height position. This application solves the problem of insufficient height adjustment accuracy of existing feeding mechanisms, achieves precise positioning of the circuit board 7 conveying plane, and ensures reliable docking with equipment stations of different heights. The mechanical transmission structure avoids the complexity of the hydraulic system, reduces the failure rate, and improves the system response speed, meeting the high-precision and high-stability operation requirements of electronic manufacturing equipment.

[0041] Please refer to Figures 2-3 This application further proposes a center plate positioning assembly 5 including a second driving device 51, a first linear guide rail 52, a second mounting plate 53, and a guide post 54; two first linear guide rails 52 are provided, and the two first linear guide rails 52 are arranged parallel to each other on the upper surface of the mounting base plate 31; the second mounting plate 53 is mounted across the sliders of the two first linear guide rails 52; the second driving device 51 is located on the lower surface of the mounting base plate 31, and the power output end of the second driving device 51 is connected to the second mounting plate 53 through a reserved hole in the mounting base plate 31; the guide post 54 is fixedly mounted on the second mounting plate 53 and is used to center and position the circuit board 7 when the second driving device 51 is running.

[0042] The second driving device 51 refers to the mechanism that provides linear motion power, which can be implemented by a linear cylinder. Its function is to drive the second mounting plate 53 to move along the guide rail by controlling the output displacement. The first linear guide rail 52 refers to the linear guide component composed of a guide rail and a slider, which can be implemented by a high-precision ball linear guide rail. Its function is to provide a low-friction, high-rigidity sliding path for the second mounting plate 53. The second mounting plate 53 refers to the support structure that carries the guide post 54. It can be made of aluminum alloy plate or steel plate. Its function is to transmit the thrust of the driving device to the guide post 54 and maintain motion stability. The guide post 54 refers to the positioning component that contacts the edge of the circuit board 7. Its function is to center and constrain the circuit board 7 by moving synchronously on both sides.

[0043] Understandably, when the circuit board 7 is placed on the fork-shaped support assembly 4, the second driving device 51 pushes the second mounting plate 53 parallel through the pre-drilled holes, causing the second mounting plate 53 to move towards the center along the first linear guide rail 52. The guide posts 54 fixed to both sides of the second mounting plate 53 simultaneously approach the edge of the circuit board 7 until they contact both sides of the circuit board 7 and apply a balanced thrust, forcing the circuit board 7 to slide along the fork-shaped support to the center position. During this process, the parallel arrangement of the first linear guide rail 52 ensures the symmetrical movement trajectory of the guide posts 54 on both sides, avoiding positioning offset caused by pressure on one side. This application enables flexible centering and positioning of the circuit board 7 during transport, eliminating damage to the board surface caused by mechanical impact. Simultaneously, the dual-sided synchronous movement mechanism improves the consistency of positioning accuracy, meeting the requirements of precision equipment for the repeatability of the circuit board 7's position.

[0044] Please refer to Figure 3 This application further proposes that the guide post 54 includes a fixed post 541, a bearing, and a sleeve 542 coaxially arranged; a plurality of fixed posts 541 are provided, and the plurality of guide posts 54 are arranged in a straight line along the extension direction of the second mounting plate 53; the bearing is provided at the upper end of the fixed post 541, and the sleeve 542 is sleeved on the outside of the bearing; wherein, the bearing is a deep groove ball bearing.

[0045] The fixed column 541 refers to the support structure arranged in a straight line along the extension direction of the second mounting plate 53, which can be implemented by a metal cylinder to provide rigid support in the vertical direction. The deep groove ball bearing refers to the rolling bearing installed at the top of the fixed column 541, which can be implemented by a standard model deep groove ball bearing. Its inner ring is interference-fitted with the fixed column 541, and its outer ring is interference-fitted with the sleeve 542 to reduce the frictional resistance between the sleeve 542 and the fixed column 541. The sleeve 542 refers to the annular structure wrapped around the deep groove ball bearing, which can be made of stainless steel. Its inner wall contacts the outer ring of the bearing, and its outer wall contacts the edge of the circuit board 7 to transmit positioning force.

[0046] Understandably, when the second drive device 51 drives the second mounting plate 53 to move along the first linear guide rail 52, the guide post 54 moves synchronously with the second mounting plate 53. The deep groove ball bearing allows the sleeve 542 to rotate freely around the axis of the fixed post 541. When the outer wall of the sleeve 542 contacts the edge of the circuit board 7, the sleeve 542 offsets the sliding friction through rotation, so that the circuit board 7 only bears the rolling friction force during the lateral movement. The multiple fixed posts 541 are arranged in a straight line to form a continuous guide surface, ensuring that the contact area between the sleeve 542 and the edge of the circuit board 7 is evenly distributed, avoiding local stress concentration. This application effectively solves the problem of damage caused by rigid contact during the centering and positioning of the circuit board 7, and improves the smoothness and reliability of the positioning action. The combination structure of the deep groove ball bearing and the sleeve 542 extends the service life of the guide post 54 and reduces the maintenance frequency while ensuring positioning accuracy. The straight-line arrangement design of the multiple fixed posts 541 further enhances the overall stability of the guide post 54 assembly, ensuring the consistency and repeatability of the centering and positioning process.

[0047] Please refer to Figures 4-5 This application further proposes a feeding lifting device, including a fork-shaped pallet assembly 4. The fork-shaped pallet assembly 4 includes a left pallet group 41, a right pallet group 42, a third mounting plate 43, a second linear guide rail 44, and a photoelectric sensor 45. Two second linear guide rails 44 are provided, and the two second linear guide rails 44 are arranged parallel to each other on the upper surface of the mounting base plate 31. The third mounting plate 43 is mounted across the sliders of the two second linear guide rails 44. The left pallet group 41 and the right pallet group 42 are respectively fixed at both ends of the third mounting plate 43 by a fixing bracket. The photoelectric sensor 45 is provided on the left pallet group 41 or the right pallet and is used to detect the placement of the circuit board 7.

[0048] The second linear guide 44 refers to a guide mechanism arranged parallel to the surface of the mounting base plate 31, which can be implemented using a ball-bearing linear guide. The dual guide layout ensures the straightness and stability of the movement trajectory of the third mounting plate 43. The third mounting plate 43 refers to a load-bearing component that spans the slider of the second linear guide 44, which can be made of aluminum alloy plate and is used to integrate and fix the left support plate group 41 and the right support plate group 42. The left support plate group 41 and the right support plate group 42 refer to the support structures symmetrically distributed at both ends of the third mounting plate 43. The photoelectric sensor 45 refers to a device used to detect the position status of the circuit board 7, which can be implemented using a reflective photoelectric switch. The subsequent positioning action is triggered by real-time monitoring of whether the circuit board 7 is placed.

[0049] Understandably, the third mounting plate 43 is slidably connected to the mounting base plate 31 via the second linear guide rail 44 and moves in a predetermined direction under the action of the drive assembly; the left support plate group 41 and the right support plate group 42 are respectively fixed at both ends of the third mounting plate 43, forming symmetrically distributed support areas. When the circuit board 7 is placed on the fork-shaped support plate, the photoelectric sensor 45 detects the circuit board 7 and transmits the signal to the control system, triggering the center plate positioning assembly 5 to perform the centering action; for example, when the third drive device 321 drives the synchronous belt 325 to operate, the clamping plate 46 pushes the third mounting plate 43 to move along the second linear guide rail 44, so that the left support plate group 41 and the right support plate group 42 move synchronously. This application solves the positioning failure problem caused by the placement deviation of the circuit board 7 in the prior art. By using the photoelectric sensor 45 to detect the edge position of the circuit board 7 in real time, it ensures that the center plate positioning component 5 starts the centering action only after the circuit board 7 is accurately in place, avoiding misoperation caused by position offset. At the same time, the symmetrical layout of the left and right support plate groups 42 can adapt to circuit boards 7 of different widths. With the help of the movable third mounting plate 43, the support range can be dynamically adjusted, which enhances the compatibility of the equipment with workpieces of different specifications.

[0050] Please refer to Figure 5 This application further proposes that the pallet drive assembly 32 includes a third drive device 321, a fixed base 322, a driving synchronous pulley 323, a driven synchronous pulley 324, and a synchronous belt 325. The third drive device 321 and the driven synchronous pulley 324 are respectively mounted on the mounting base plate 31 through the fixed base 322. The driven synchronous pulley 324 is rotatably connected to the fixed base 322 through a bearing. The driving synchronous pulley 323 is fixedly mounted on the output shaft of the third drive device 321. The synchronous belt 325 is meshed between the driving synchronous pulley 323 and the driven synchronous pulley 324. The third mounting plate 43 is fixedly connected to the synchronous belt 325 through a clamping plate 46, and is used to drive the third mounting plate 43 to move when the third drive device 321 is running.

[0051] The bearing is a deep groove ball bearing. The third drive device 321 is a motor or servo motor that provides power to drive the active synchronous pulley 323 to rotate. The fixed seat 322 is a mounting base that supports the third drive device 321 and the driven synchronous pulley 324. It can be made of metal castings or machined parts to ensure the positional stability of the drive components. The deep groove ball bearing is a rolling bearing installed between the fixed seat 322 and the driven synchronous pulley 324 to reduce rotational friction and bear radial loads. The active synchronous pulley 323 and the driven synchronous pulley 324 are toothed pulleys that transmit power through the synchronous belt 325. The synchronous belt 325 is a toothed transmission belt used to accurately transmit power and prevent slippage. The clamping plate 46 is a clamping component that connects the synchronous belt 325 and the third mounting plate 43 to convert the linear motion of the synchronous belt 325 into the displacement of the third mounting plate 43.

[0052] Understandably, after the third drive device 321 is started, it drives the active synchronous pulley 323 to rotate, which in turn drives the driven synchronous pulley 324 to rotate via the synchronous belt 325. The synchronous belt 325 is fixedly connected to the third mounting plate 43 via the clamping plate 46, allowing the third mounting plate 43 to slide along the second linear guide rail 44. The deep groove ball bearing supports the driven synchronous pulley 324, reducing rotational resistance, and the fixed seat 322 ensures the installation accuracy of the drive components. Thus, the fork-shaped pallet assembly 4 achieves stable and precise reciprocating motion under the drive of the pallet drive assembly 32, avoiding positioning deviations caused by transmission errors. This application achieves high-precision, low-noise drive for the fork-shaped pallet assembly 4, solving the problems of easy wear and high maintenance costs in traditional transmission methods. At the same time, the synchronous belt 325 ensures motion synchronization through meshing transmission, preventing the circuit board 7 from shifting or failing to position due to transmission errors during transport.

[0053] This application further proposes a limit switch assembly 8 mounted on the mounting base plate 31. The limit switch assembly 8 has a switch sensor 81 and a sensor mounting base 82. The switch sensor 81 is respectively mounted at the start and end positions on the moving path of the fork-shaped support plate assembly 4 via the sensor mounting base 82. The switch sensor 81 is electrically connected to the third drive device 321. An interference component corresponding to the switch sensor 81 is provided below the third mounting plate 43 for triggering the switch sensor 81 when it passes by. The switch sensor 81 is a slot-type photoelectric sensor.

[0054] Among them, the slotted photoelectric sensor refers to a non-contact photoelectric detection device with a U-shaped slot structure. Specifically, it can be implemented using an infrared transmitter and receiver through a beam-to-beam structure, generating a switching signal by blocking the light path.

[0055] Understandably, when the fork-shaped pallet assembly 4 moves under the drive of the third drive device 321, the interference component fixed to the bottom of the third mounting plate 43 moves synchronously with it. When it moves to the starting or ending position, the interference component enters the U-shaped groove of the slotted photoelectric sensor, blocking the light path and triggering the sensor to output a signal. After the signal is transmitted to the control system of the third drive device 321, the drive device immediately stops running, thereby ensuring that the fork-shaped pallet assembly 4 stops precisely at the set position. By adjusting the fixed position of the sensor mounting base 82 on the mounting base plate 31, different stroke requirements can be adapted. This application effectively solves the problem of the fork-shaped pallet assembly 4 moving too far or not reaching the target position. It achieves high repeatability position control through photoelectric signal triggering, avoids wear and error accumulation caused by mechanical contact, and simplifies the equipment maintenance process.

[0056] Please refer to Figure 6This application further proposes that the feeding lifting device also includes a code reading device 9, which is mounted on the mounting base plate 31 via a fixed frame 91. The code reading device 9 is located above the fork-shaped pallet assembly 4 and is used to read the identification code on the circuit board 7.

[0057] Among them, the code reading device 9 refers to a non-contact optical device used to identify the marking information on the surface of the circuit board 7. Specifically, it can be implemented using an industrial camera or a laser scanner. Its installation position is calculated to cover the effective working area of ​​the fork-shaped tray assembly 4. The fixed frame 91 refers to the support structure that carries the code reading device 9. Specifically, it can be implemented using a gantry structure built with aluminum profiles. The bottom of the frame is connected to the mounting base plate 31 by bolts to form a stable support.

[0058] Understandably, after the fork-shaped pallet assembly 4 completes the positioning of the circuit board 7, the barcode reader 9 is triggered and starts to acquire the QR code or barcode information at a preset position on the surface of the circuit board 7 through optical scanning. The fixed frame 91 forms a three-dimensional spatial positioning structure through vertical columns and horizontal cantilever to ensure that the optical axis of the barcode reader 9 maintains a predetermined angle with the plane of the circuit board 7. This application realizes the automated collection of the identity information of the circuit board 7, eliminates the manual intervention link, and improves the accuracy and real-time performance of production data collection. The modular design of the fixed frame 91 allows the barcode reader 9 to adjust the installation height and angle according to different specifications of circuit boards 7, while avoiding interference with the operation of the lifting drive assembly 1 and the positioning mechanism.

[0059] Please refer to Figure 6 This application further proposes that it also includes an electrostatic eliminator 10, which is disposed on the other side of the fixed frame 91 opposite to the code reader 9, for eliminating static electricity associated with the circuit board 7.

[0060] Among them, the static eliminator 10 refers to a device that neutralizes charges by releasing ions, which can be implemented by using an ion fan or an static bar. Its installation position must cover the moving path of the circuit board 7. The fixed frame 91 refers to the support structure used to support the code reading device 9. It can be constructed by splicing aluminum profiles and must have sufficient rigidity to maintain the relative position of the code reading device 9 and the static eliminator 10.

[0061] Understandably, when the circuit board 7 is transported to the area below the code reader 9 by the fork-shaped pallet assembly 4, the static eliminator 10 and the code reader 9 are located on opposite sides of the fixed frame 91. After the code reader 9 completes the reading of the identification code of the circuit board 7, the fork-shaped pallet assembly 4 continues to move the circuit board 7 towards the processing area. At this time, the ion flow generated by the static eliminator 10 covers the surface of the circuit board 7, neutralizing the static charge it carries. The triggering timing of the static eliminator 10 can be linked with the motion signal of the pallet drive assembly 32, for example, it can be activated after the photoelectric sensor 45 detects that the circuit board 7 has completely passed through the code reading area. This application can avoid the positioning displacement of the circuit board 7 due to electrostatic adsorption, and prevent precision components from being damaged by electrostatic discharge; at the same time, it can eliminate the interference of static electricity on the signal acquisition of the code reader 9, ensure the accuracy of identification code reading, and improve the operational stability of the automated production line.

[0062] Please refer to Figure 7 This application further proposes a circuit board interchange machine, including two feeding lifting devices, which are arranged in a mirror image on the frame 6.

[0063] The feeding lifting device refers to a device that adjusts the height of the mounting bracket 2 through the lifting drive component 1, carries the circuit board 7 in conjunction with the fork-shaped pallet component 4, and achieves centering positioning by the central plate positioning component 5. Specifically, it can be achieved by using a screw module 11 to drive the lifting, a synchronous belt 325 to drive the pallet movement, and a photoelectric sensor 45 to detect the position of the circuit board 7, which is used to adapt to different height stations and complete the precise positioning of the circuit board 7. The mirror setting refers to two feeding lifting devices being symmetrically distributed on both sides of the frame 6, which can be achieved by adjusting the relative position and direction of the mounting bracket 2 on the frame 6, for processing two sets of circuit boards 7 simultaneously or realizing dual-station alternating operation.

[0064] Understandably, the frame 6 serves as the main support, and the two feeding lifting devices are adjusted to the target height by the lifting drive assembly 1. The fork pallet assembly 4 moves along the linear guide rail under the drive of the pallet drive assembly 32 to send the circuit board 7 into or out of the work station. The center plate positioning assembly 5 cooperates with the drive device through the guide column 54 to perform flexible centering during the movement of the circuit board 7. The two feeding lifting devices operate independently and achieve bidirectional synchronous operation through a mirror layout. For example, when feeding on one side, feeding on the other side will result in feeding on the other side, or two circuit boards 7 can be processed at the same time.

[0065] Through the above technical solution, this application solves the problem that the equipment in the prior art cannot adapt to multiple workstation heights at the same time and has low operating efficiency. By using a mirror layout of dual lifting units, bidirectional synchronous operation is achieved, improving the transfer efficiency of circuit board 7, while reducing the frequency of equipment adjustment and enhancing the flexible production capacity of the production line.

[0066] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A feeding lifting device, characterized in that, It includes a lifting drive assembly (1), a mounting bracket (2), a base plate assembly (3), a fork-shaped support plate assembly (4), and a center plate positioning assembly (5); The lifting drive assembly (1) is fixedly installed on the frame (6) and is used to drive the mounting bracket (2) to a predetermined height position; The base plate assembly (3) is fixedly disposed on the top of the mounting bracket (2). The base plate assembly (3) includes a mounting base plate (31) and a tray drive assembly (32). The tray drive assembly (32) is disposed on the mounting base plate (31). The fork-shaped support plate assembly (4) is slidably disposed on the upper surface of the mounting base plate (31) to support the circuit board (7); The central clapper positioning component (5) is mirror-displayed on both sides of the fork-shaped pallet assembly (4) and is used to center and position the circuit board (7) on the fork-shaped pallet assembly (4). The pallet drive assembly (32) is connected to the fork pallet assembly (4) for driving the fork pallet assembly (4) to reciprocate in a predetermined direction.

2. The feeding lifting device as described in claim 1, characterized in that, The lifting drive assembly (1) includes a screw module (11) and a first drive device (12). The screw module (11) is mounted vertically on the frame (6) via a first mounting plate. The first drive device (12) is connected to the screw module (11) for driving the lifting slider on the screw module (11) to move up and down when the first drive device (12) is running. The lifting slider is fixedly connected to the mounting bracket (2).

3. The feeding lifting device as described in claim 1, characterized in that, The central clapper positioning assembly (5) includes a second driving device (51), a first linear guide rail (52), a second mounting plate (53), and a guide post (54); Two first linear guides (52) are provided, and the two first linear guides (52) are arranged in parallel on the upper surface of the mounting base plate (31); The second mounting plate (53) is mounted across the sliders of the two first linear guides (52); The second drive device (51) is disposed on the lower surface of the mounting base plate (31), and the power output end of the second drive device (51) is connected to the second mounting plate (53) through the reserved hole of the mounting base plate (31). The guide post (54) is fixedly installed on the second mounting plate (53) and is used to center and position the circuit board (7) when the second drive device (51) is running.

4. The feeding lifting device as described in claim 3, characterized in that, The guide post (54) includes a fixed post (541) coaxially arranged, a bearing, and a sleeve (542); The fixed post (541) is provided in a plurality of units, and the plurality of guide posts (54) are arranged in a straight line along the extension direction of the second mounting plate (53); The bearing is mounted on the upper end of the fixed column (541), and the sleeve (542) is fitted over the outside of the bearing.

5. The feeding lifting device as described in claim 1, characterized in that, The fork-shaped pallet assembly (4) includes a left pallet group (41), a right pallet group (42), a third mounting plate (43), a second linear guide rail (44), and a photoelectric sensor (45); Two second linear guides (44) are provided, and the two second linear guides (44) are arranged in parallel on the upper surface of the mounting base plate (31); The third mounting plate (43) is mounted across the sliders of the two second linear guides (44); The left support plate assembly (41) and the right support plate assembly (42) are respectively fixed at both ends of the third mounting plate (43) by a fixing bracket; The photoelectric sensor (45) is disposed on the left tray group (41) or the right tray group (42) for detecting the placement of the circuit board (7).

6. The feeding lifting device as described in claim 5, characterized in that, The pallet drive assembly (32) includes a third drive device (321), a fixed base (322), a driving synchronous pulley (323), a driven synchronous pulley (324), and a synchronous belt (325). The third drive device (321) and the driven synchronous wheel (324) are respectively mounted on the mounting base plate (31) via the fixed seat (322); The driven synchronous pulley (324) is rotatably connected to the fixed base (322) via a bearing; The active synchronizing wheel (323) is fixedly mounted on the output shaft of the third drive device (321); The timing belt (325) is engaged between the driving timing pulley (323) and the driven timing pulley (324). The third mounting plate (43) is fixedly connected to the timing belt (325) through the clamping plate (46) and is used to drive the third mounting plate (43) to move when the third drive device (321) is running.

7. The feeding lifting device as described in claim 6, characterized in that, It also includes a limit switch assembly (8) disposed on the mounting base plate (31). The limit switch assembly (8) has a switch sensor (81) and a sensor mounting base (82). The switch sensor (81) is respectively set at the start and end of the moving path of the fork-shaped pallet assembly (4) through the sensor mounting base (82). The switch sensor (81) is electrically connected to the third driving device (321), and an interference component corresponding to the switch sensor (81) is provided below the third mounting plate (43) for triggering the switch sensor (81) when it passes by.

8. The feeding lifting device as described in any one of claims 1-7, characterized in that, It also includes a code reading device (9), which is mounted on the mounting base plate (31) via a fixed frame (91) and is located above the fork-shaped tray assembly (4) for reading the identification code on the circuit board (7).

9. The feeding lifting device as described in claim 8, characterized in that, It also includes an electrostatic eliminator (10), which is disposed on the other side of the fixed frame (91) opposite to the code reader (9) for eliminating static electricity associated with the circuit board (7).

10. A circuit board interchange machine, characterized in that, Includes the feeding lifting device as described in any one of claims 1-9, with two of the feeding lifting devices arranged in a mirror image on the frame (6).

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