A compound punch

Abstract

The present application belongs to the technical field of FPC production, and relates to a composite punch, comprising: a punching platform provided with a double-mover linear module; a lower die movable group is slidingly installed on the double-mover linear module, and is used for bearing a punching lower die and driving the punching lower die to reciprocate between a feeding station and a punching station; a punching plate is located above the punching station, and is used for fixing a punching upper die; the punching plate drives the punching upper die to perform a punching operation through a punching driving mechanism; a receiving movable group is slidingly installed on the double-mover linear module, and is used for bearing a tray and driving the tray to reciprocate between the punching station and a discharging station; a vibration module is installed on the punching plate, and is used for driving the punching plate and the upper die to vibrate, so that a finished product on the upper die is separated from the upper die.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of FPC production, and relates to a compound punch. BACKGROUND

[0002] In the punching process of existing FPC (flexible printed circuit) and other sheet materials, a traditional crank punch or hydraulic punch is usually used to complete the punching forming.

[0003] In such conventional equipment, the upper die is directly connected to the mover of the driving mechanism, and the lower die is fixed on the punching platform. The workpiece is cut through the relative movement between the dies.

[0004] After punching, the workpiece is usually separated from the upper die by gravity, ejector pins or stripper plates;

[0005] Some high-precision production lines are provided with vacuum suction or air blowing devices to take out the workpiece from the die and then transfer it to a material receiving tray by a mechanical hand.

[0006] However, the above conventional technology has the following defects when applied to FPC and other light and thin flexible materials:

[0007] 1. Unstable blanking: FPC is extremely light, and after punching, it is easily affected by static electricity or air flow, and the landing point is uncontrollable;

[0008] 2. Complex structure and slow beat: In order to ensure the stripping effect, air blowing, ejector pins or suction devices are often added, which makes the mechanism complex and synchronization difficult;

[0009] 3. High pollution risk: air blowing and suction can easily introduce dust particles, affecting the yield of electronic grade products;

[0010] 4. Difficult to change die: the upper die is usually vertically hinged, which occupies a large space and is inconvenient for manual operation.

[0011] Therefore, the existing punching equipment cannot realize efficient and automatic punching and stable blanking of flexible materials while ensuring a clean environment and high-precision positioning. SUMMARY

[0012] The present application aims to overcome the deficiencies of the prior art by providing a compound punch that introduces a new process of adhesion, delayed release and vibration separation in the punching mechanism to achieve controlled separation and precise blanking of finished products, thereby overcoming the problems of unstable workpiece separation, complex structure and poor cleanliness in existing punching equipment.

[0013] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0014] A compound punch, comprising:

[0015] The stamping platform is provided with a double-mover linear module;

[0016] The lower die moving group is slidably installed on the double-mover linear module and is used to carry a stamping lower die and drive the stamping lower die to reciprocate between the feeding station and the stamping station;

[0017] The stamping plate is located above the stamping station and is used to fix a stamping upper die. The stamping plate is driven by the stamping driving mechanism to drive the stamping upper die to perform stamping work.

[0018] The receiving moving group is slidably installed on the double-mover linear module and is used to carry a tray and drive the tray to reciprocate between the stamping station and the discharging station.

[0019] The vibration module is installed on the stamping plate and is used to drive the stamping plate and the upper die to vibrate, so that the finished product on the upper die is separated from the upper die.

[0020] The lower die moving group drives the lower die carrying the workpiece to the stamping station, the stamping plate drives the upper die to stamp the workpiece downward and makes the finished product formed by stamping adhere to the surface of the upper die.

[0021] When the lower die moving group drives the lower die to leave the stamping station, the receiving moving group carries the tray into the stamping station, and the vibration module is started to separate the finished product from the upper die and make it fall into the tray to complete discharging.

[0022] Further, the stamping driving mechanism comprises:

[0023] The driving motor is fixed below the stamping platform.

[0024] The guide column has an upper end connected with the stamping plate and a lower end connected with the sliding plate. The guide column penetrates the stamping platform and can slide relative to the stamping platform.

[0025] The driving motor drives the sliding plate to move up and down through the lead screw, and the sliding plate drives the stamping plate to perform stamping work through the guide column.

[0026] Further, the vibration module comprises a vibration cylinder and a vibration plate. The vibration plate is slidably installed above the stamping plate through a knocking column.

[0027] The vibration cylinder is fixed above the vibration plate. The mover of the vibration cylinder is connected with the vibration plate.

[0028] The vibration cylinder is used to drive the vibration plate to drive the knocking column to knock the stamping plate, so that the workpiece on the other side of the stamping plate falls off.

[0029] Further, the feeding robot and the waste robot are further included.

[0030] The feeding manipulator and the waste manipulator are installed above the stamping platform by a double-motor electric machine;

[0031] The feeding manipulator is used to grab the workpiece to the lower die moving group of the feeding station;

[0032] The waste manipulator is used to grab the waste from the lower die moving group and transfer it.

[0033] Further, a lower camera module is arranged on the stroke route of the feeding manipulator, and is used to shoot the workpiece grabbed by the feeding manipulator;

[0034] The feeding manipulator further comprises a rotating module, which is used to adjust the horizontal angle of the feeding manipulator according to the data of the lower camera module.

[0035] Further, an upper camera module is arranged corresponding to the feeding station, and is used to shoot and identify the workpiece on the lower die moving group;

[0036] When the workpiece is a defective product, the waste manipulator takes out the defective product from the lower die moving group.

[0037] Further, the material receiving moving group comprises a jacking module, which is used to jack up the material disc to make it close to the upper die of the stamping station when the material receiving moving group is located at the stamping station.

[0038] Further, a sliding groove is arranged on the stamping plate along the direction of the double-motor linear module, and the upper die of the stamping is installed on the stamping plate through the sliding groove;

[0039] A pin hole is arranged on the stamping plate, which is used to accommodate a pin, and the pin is used to fix the upper die of the stamping;

[0040] When the upper die of the stamping is installed, the lower die moving group carries the lower die of the stamping and the upper die of the stamping engaged with the lower die of the stamping slides along the direction of the double-motor linear module, so that the edge of the upper die of the stamping slides into the sliding groove to complete the installation.

[0041] Further, a sensor is arranged on the stamping plate, which is used to monitor the installation position of the upper die of the stamping.

[0042] Further, a material receiving module and a discharging manipulator are further included;

[0043] The discharging manipulator is used to grab the full material tray from the material receiving moving group of the discharging station and transfer it to the material receiving module to complete the discharging;

[0044] The material receiving module is provided with a double-layer transmission track, which is respectively used for the discharging and feeding of the material tray between the material receiving module and the material receiving moving group.

[0045] The technical scheme of the application uses the adhered state of the workpiece after punching as a temporary holding means, and uses the vibration module to realize controlled separation, thereby avoiding the traditional material removal plate or air blowing structure, and the separation process is stable and controllable. The tray has completed accurate alignment before the finished product is released, and the workpiece directly falls into the grid under the action of gravity, and the falling posture is stable and the position is accurate. The driving mechanism is arranged below the platform, avoiding oil pollution in the stamping area, and the overall structure has low gravity center and small vibration, which is suitable for clean production requirements of the electronic industry. Through the coordinated control of the lower die module, the material receiving module, visual detection and tray buffering, automatic production from feeding to finished product collection is realized, and the production rhythm and yield are improved.

[0046] Additional features and advantages of the application will be set forth in the description that follows, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0047] The application will be described in greater detail below with reference to the accompanying drawings, so that the above advantages of the application can be more apparent.

[0048] Figure 1 is a structural schematic diagram of a compound puncher of the application;

[0049] Figure 2 is a front view schematic diagram of a compound puncher of the application;

[0050] Figure 3 is a partial structural schematic diagram of a compound puncher of the application;

[0051] Figure 4 is a vibration module schematic diagram of a compound puncher of the application;

[0052] Figure 5 is a material receiving module schematic diagram of a compound puncher of the application;

[0053] Figure 6 is a schematic diagram of a mounting stamping upper die of a compound puncher of the application;

[0054] Figure 7 is a schematic diagram of a stamping upper die fixing of a compound puncher of the application. DETAILED DESCRIPTION

[0055] Embodiments of the application are described in detail below with reference to the attached drawings, which show by way of example, embodiments in which the same or similar elements or elements having the same or similar functions are denoted by the same reference signs and in which:

[0056] In the description of the present application, it needs to be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the drawings described in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0057] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0058] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] Reference is made to the accompanying drawings Figures 1-7 As shown in the drawings, the present embodiment provides a compound punch, which comprises a punching platform 100, a lower die moving group 200, a punching plate 300, a material receiving moving group 400 and a vibration module 500. The punching platform 100 is provided with a double-motor linear module 110, which is used to provide a common sliding guide for the lower die moving group 200 and the material receiving moving group 400, so that the two can realize station switching and accurate alignment along the same movement path. The lower die moving group 200 is slidingly installed on the double-motor linear module 110, which is used to carry a punching lower die 210 and move back and forth between a feeding station and a punching station. The punching plate 300 is arranged above the punching station, which is used to install a punching upper die 310. The punching plate 300 is driven by a punching driving mechanism, so that the punching upper die 310 can reciprocate in the vertical direction to complete the punching work. The material receiving moving group 400 is also slidingly installed on the double-motor linear module 110, which is used to carry a tray and drive the tray to move back and forth between the punching station and a discharging station. The vibration module 500 is installed on the punching plate 300, which is used to drive the punching plate 300 to produce short pulse vertical vibration under the instruction of the control system, so as to drive the upper die to vibrate, so that the finished product attached to the surface of the upper die is separated from the punching upper die under the action of inertia and falls into the tray.

[0060] The working process of the embodiment is as follows: first, the lower die moving group 200 completes the feeding of the workpiece when it is located in the feeding station, and then the lower die moving group 200 slides along the double-motor linear module 110 into the stamping station and is aligned with the upper die. After the stamping drive mechanism is started, the stamping plate 300 drives the upper die to move downward to complete the punching operation. Because the flexible materials such as FPC are light in quality and smooth in surface, the finished product after punching is temporarily attached to the surface of the upper die under the action of friction, electrostatic force and tiny burrs. This attachment state is used as a short-time holding method in the device, so that the workpiece will not randomly fall or deviate during the return process of the upper die. After the punching is completed, the lower die moving group 200 exits the stamping station to provide space for the tray to enter. The receiving moving group 400 advances along the double-motor linear module 110 to send the tray to the lower side of the upper die and complete the alignment. After the control system detects that the tray is in place, the vibration module 500 is triggered to act, and the vibration module 500 applies a vertical impact or high-frequency vibration to the stamping plate 300, so that the finished product attached to the surface of the upper die is separated from the upper die under the action of inertia and falls stably into the tray grid in the direction of gravity. After the finished product is dropped into the tray, the receiving moving group 400 exits the stamping station to the unloading station to complete the full-tray replacement, and the lower die moving group 200 reenters the feeding station to start the next cycle, realizing automatic and continuous production.

[0061] The composite punch overcomes the problems of unstable workpiece separation, tray deviation and air blowing pollution in traditional stamping equipment through the process of "attachment holding after punching - controlled vibration separation - tray precise material falling". Because the separation time is coordinated by the control system, the vibration module 500 only acts after the tray is in place, so the finished product separation position and posture are stable, and the material falling repeatability is high. The structure does not need to set up air blowing pipeline or adsorption components, the equipment is more simple, and dust pollution is avoided, which is suitable for clean production scenes of electronic components and flexible circuit boards. The lower die moving group 200 and the receiving moving group 400 share the guide rail channel, the whole machine structure is compact, the movement path is short, the action rhythm is consistent, and the production efficiency and product yield can be significantly improved.

[0062] In the embodiment, the stamping drive mechanism includes a drive motor 320, a guide column 330 and a sliding plate 340. The drive motor 320 is fixedly installed below the stamping platform 100, and its output end is connected with a lead screw transmission mechanism for realizing controllable thrust in the vertical direction. The upper end of the guide column 330 is connected with the stamping plate 300, and the lower end is fixed with the sliding plate 340. The guide column 330 penetrates through the stamping platform 100 and can slide up and down relative to the stamping platform 100, for realizing synchronous lifting of the stamping plate 300 under the driving of the lead screw. When the drive motor 320 rotates, the lead screw rotates, the lead screw nut pushes the sliding plate 340 to make accurate displacement in the vertical direction, the sliding plate 340 transmits the movement to the stamping plate 300 through the guide column 330, thereby driving the stamping upper die 310 installed below the stamping plate 300 to complete the punching work.

[0063] The structure arranges the driving motor 320 and the screw rod assembly below the stamping platform 100, forming a lower driving layout. Compared with the traditional upper driving punch, it has significant structural and performance advantages. First, the driving gravity center is lowered as a whole, making the device have higher overall rigidity and smaller vibration during high-speed punching, and the punching reaction force is directly transmitted to the ground through the bottom of the platform, avoiding the swing accumulation of the upper driving structure. Second, the screw rod transmission and the guide column 330 constitute a closed force loop, which can effectively suppress the punch inclination caused by the eccentric load, maintain the parallelism of the upper and lower dies, and thus improve the consistency of the punching gap and the die life. Third, the screw rod transmission driven by the servo motor can realize precise control of stroke, speed and pressure, and can set multiple speed curves or constant pressure dwell time according to different material thickness and process requirements, so that the punching process is stable and controllable, and the deformation of flexible materials caused by impact is avoided.

[0064] Since the driving mechanism is arranged below the platform, the space above is kept open, which can accommodate structures such as visual modules, feeding manipulators 610 and vibration modules 500 at the same time, not only making the overall layout more compact, but also facilitating maintenance and die changing operations. Through this lower servo screw rod driving structure, the compound punch significantly reduces vibration and noise while ensuring high-precision punching, realizes the working characteristics of low gravity center, high stability and high repeat positioning accuracy, and is particularly suitable for electronic industry production scenes with high requirements for punching precision and clean environment.

[0065] In this embodiment, the vibration module 500 includes a vibration cylinder 510, a vibration plate 520 and a knocking column. The vibration plate 520 is arranged above the stamping plate 300 and is connected to the stamping plate 300 in the vertical direction through the knocking column. The knocking column can slide up and down in the guide hole of the stamping plate 300, thereby ensuring efficient transmission of vibration energy in the vertical direction. The vibration cylinder 510 is fixedly installed above the vibration plate 520, and its piston rod is connected to the upper surface of the vibration plate 520. When the control system issues an instruction, the vibration cylinder 510 drives the vibration plate 520 to make a rapid reciprocating motion in the vertical direction, and the vibration plate 520 pushes the knocking column to impact the stamping plate 300 in a short stroke, causing the stamping plate 300 and the upper die installed below it to vibrate slightly vertically.

[0066] The vibration module 500 does not work continuously in the working principle, but outputs a short-time high-acceleration pulse in the form of intermittent impact. Through this instantaneous energy transmission, the friction force, electrostatic adsorption force and small burr engagement force between the finished product and the upper die can be overcome in a very short time, so that the punched workpiece quickly separates from the surface of the upper die and falls down. The direction of the vibration is strictly perpendicular to the plane of the stamping plate 300, avoiding the transverse component force causing the die misalignment or the workpiece slipping, and ensuring that the finished product falls into the tray grid position in the direction of gravity.

[0067] Compared with the traditional air blowing or ejector pin structure, the vibration module 500 has obvious advantages. First, the structure is simple, and only one cylinder is needed to realize the stripping action, without complex air path and vacuum system. Second, the separation process is controlled, and the cylinder stroke and frequency can be accurately adjusted through the control valve or solenoid valve to adapt to different thickness and flexibility of the material. Third, the cleanliness is high, and the whole vibration process does not produce air flow disturbance or particle pollution, which is especially suitable for electronic clean production environment.

[0068] In addition, since the vibration module 500 is directly installed on the stamping plate 300, the impact reaction force is closed through the guide column 330 and the platform to form a short force ring, avoiding the vibration transmission to the whole machine structure. This design ensures low noise and high durability during the operation of the module while maintaining reliable separation. Through the setting of the vibration module 500, the compound punch realizes the controlled separation process of the workpiece, that is, the action chain of "attaching and holding after punching - vibration impact separation - gravity falling", so that the workpiece is stably separated and the posture is controllable, fundamentally solving the problem of easy sticking to the die after punching and unstable falling of flexible materials.

[0069] In this embodiment, the compound punch also includes an upper material manipulator 610 and a waste material manipulator 620 arranged above the stamping platform 100, both of which are driven by a double-mover linear motor system. The double-mover linear motor system can drive two independent manipulator end execution assemblies to move back and forth on the same guide rail or support beam to realize the cooperative operation of material feeding and waste material transfer. The upper material manipulator 610 is used to grab the workpiece to be punched and accurately place it on the lower die module 200 at the upper material station, and the waste material manipulator 620 is used to grab the waste frame remaining on the lower die module 200 after punching and transfer it to the waste material recycling area.

[0070] The end structure of the upper material manipulator 610 can adopt the form of vacuum suction, flexible clamping fingers or negative pressure suction disc, and appropriate material taking method is selected according to the shape and material of the workpiece. Through the position sensor 360 or visual positioning system, the upper material manipulator 610 can realize the alignment accuracy within ±0.1 mm during each taking and placing of the workpiece, thereby ensuring the repeat accuracy of the subsequent punching position. The end of the waste material manipulator 620 can be configured with a simple clamping jaw or a suction pad, which is used to clamp or suck the waste frame after punching to avoid the accumulation of waste material in the lower die area or the secondary pollution of the product.

[0071] Since the feeding manipulator 610 and the waste manipulator 620 share a set of double-mover linear motor system, the two can work synchronously in opposite strokes. When the feeding manipulator 610 places a new workpiece to the lower die, the waste manipulator 620 simultaneously completes the cleaning and transfer of the waste of the previous cycle, realizes the beat overlap, and improves the production efficiency of the whole machine. The double-mover linear motor system adopts independent control logic, which can automatically adjust the stroke and acceleration according to the process beat, and ensure that the movements of the two manipulators do not interfere with each other.

[0072] The structure has the following advantages: first, the layout is compact, the double manipulators share the drive and support, reducing the number of motors and the size of the mechanism; second, the beat is efficient, the waste cleaning and feeding actions are performed in cross, without additional waiting time; third, the system has strong expandability, and can adapt to FPC workpieces of different sizes or shapes by replacing the end component of the manipulator. Through the cooperative operation of the feeding manipulator 610 and the waste manipulator 620, the compound punch realizes the automatic closed-loop operation of feeding, punching and waste cleaning, significantly improving the operation efficiency and production stability of the equipment.

[0073] In the embodiment, the compound punch further includes a lower camera module 700 arranged below the stroke route of the feeding manipulator 610, the lower camera module 700 is arranged upward and electrically connected with the control system, and is used for shooting and angle recognition of the shape profile, positioning hole or mark point of the grabbed workpiece in real time after the workpiece is grabbed by the feeding manipulator 610 and before the workpiece is transported to the lower die group 200. The control system calculates the horizontal rotation deviation angle of the workpiece relative to the target placement reference based on the image information collected by the lower camera module 700, and generates an angle correction signal and sends it to the rotating module of the feeding manipulator 610. After receiving the correction signal, the rotating module of the feeding manipulator 610 drives the end execution component of the manipulator to rotate in the opposite direction of the deviation angle, realizes real-time adjustment of the workpiece posture, and makes the workpiece complete angle correction in the state of being adsorbed or clamped. The corrected workpiece is accurately placed on the lower die group 200 of the feeding station by the feeding manipulator 610, ensuring that the placement direction of the workpiece is consistent with the punching direction, thereby avoiding the misplacement of the die or the shape deviation caused by the posture deviation during the stamping process.

[0074] The scheme utilizes the lower camera module 700 to realize the closed-loop control of "detection after grabbing and correction before placing", and the whole angle detection and rotation adjustment action is completed synchronously during the operation of the manipulator, without additional waiting time or independent correction station, thereby ensuring the efficiency of the beat. The lower camera module 700 is arranged upward, the field of view is not blocked, the workpiece edge and positioning feature can be clearly captured, the identification accuracy is high, and the anti-environmental light interference ability is strong. The action range and resolution of the rotation module can be set according to the workpiece size, and the control accuracy can generally reach within 0.1°, which fully meets the punching accuracy requirements of flexible printed circuit (FPC) and other thin materials. Through the configuration, the compound punch realizes the automatic posture correction in the feeding process, significantly improves the alignment accuracy and punching consistency of the workpiece feeding, avoids the increase of the scrap rate caused by the angle deviation, and further improves the production yield and stability of the whole machine.

[0075] In the embodiment, the compound punch further comprises an upper camera module 800 arranged directly above the feeding station, the upper camera module 800 is arranged downward along the vertical direction and is electrically connected with the control system, and is used for photographing and identifying the workpiece on the lower die group 200 in the feeding station. After the upper camera module 800 collects the overall image of the workpiece, the control system analyzes the shape contour, positioning hole feature and surface integrity of the workpiece through an image processing algorithm, so as to judge whether the workpiece has angle defects, warping, misplacement, contamination or other abnormalities. When the detection result is determined to be qualified, the control system allows the lower die group 200 to continue to enter the punching station to perform the next punching operation; when the detection result is determined to be unqualified or to have defective features, the control system will pause the entering action of the lower die group 200, and issue a waste cleaning instruction to dispatch the waste manipulator 620 to the feeding station to perform the taking-out operation of the defective product. The waste manipulator 620 moves to the corresponding position according to the workpiece position coordinates fed back by the upper camera module 800, and takes the defective product off the lower die group 200 through suction or clamping, and then transfers it to the waste collection area or the isolation position, and returns to the standby position after cleaning.

[0076] The structure realizes the automatic screening of the workpiece before entering the punching station through the linkage control of "upper camera identification-system determination-waste manipulator 620 taking out", effectively prevents the defective workpiece from entering the die area to cause the cutting edge damage or batch defect. The upper camera module 800 is arranged downward and the field of view is not blocked, which can monitor the workpiece posture and the surface state of the lower die at the same time, has high detection accuracy and fast response speed; the cooperation action with the waste manipulator 620 is uniformly coordinated by the control system, so that the lower die group 200 remains stationary during the cleaning process, preventing position deviation. Through the design, the compound punch completes the detection and rejection of the defective product during the feeding stage, forming a closed-loop mechanism of "detection during feeding and cleaning during abnormality", which not only improves the product yield and die safety, but also reduces manual intervention, realizes the stability and efficiency of the whole line production.

[0077] In the embodiment, the receiving device 400 includes a lifting module 410 for lifting the tray vertically to eliminate the gap between the tray and the upper die 310 after the receiving device 400 reaches the stamping station. Specifically, when the receiving device 400 slides into the stamping station along the double-sub linear module 110, a preset safety distance is usually left between the upper surface of the tray and the lower surface of the upper die 310 to avoid interference and collision between the protruding part of the upper die and the surrounding edge of the tray during the movement. When the receiving device 400 completes the position alignment, the lifting module 410 is started to drive the tray to rise along the vertical direction through a gas cylinder, a screw lifting mechanism or a wedge block transmission structure, so that the upper surface of the tray is close to the lower surface of the upper die 310, and the original gap is reduced to the optimal distance required for the stable falling of the punched part.

[0078] When the vibration module 500 is started and the finished product attached to the upper die falls off, the lifted tray can receive the workpiece with the shortest drop, so that the workpiece directly falls into the corresponding grid under the action of gravity, preventing the posture from turning, deviating or bouncing due to the too large free falling distance. The lifting module 410 automatically returns to the original position after the receiving is completed, so that the tray returns to the original height, creates a safety gap for the receiving device 400 to exit the stamping station, and thus ensures that the tray does not interfere with the upper die in the next cycle.

[0079] The design fully considers the contradictory relationship between the tray movement avoidance and the falling precision. By performing a short-stroke lifting action after the tray is in place, both the smooth entry and exit of the tray under the upper die and the ideal receiving height during the falling of the finished product are ensured. The lifting module 410 has the advantages of simple structure, rapid response and high repeat positioning accuracy, and can effectively improve the stability and yield of the workpiece falling, and is particularly suitable for the precision automatic punching production of light workpieces such as FPC and flexible film.

[0080] Reference is made to the accompanying drawings Figures 6-7 As shown in the drawings, in the embodiment, the stamping plate 300 is provided with a sliding groove 301 in the direction of the double-sub linear module 110, and the upper die 310 is installed on the stamping plate 300 through the sliding groove 301. The stamping plate 300 is provided with a pin hole for accommodating a positioning pin 350, and when the upper die 310 slides into the predetermined position, the pin 350 is inserted into the pin hole to position and fix the upper die. Specifically, the mounting base of the upper die 310 is provided with a guide block or a sliding rail structure matched with the sliding groove 301, so that the upper die can smoothly slide in the sliding groove 301 in the direction of the double-sub linear module 110.

[0081] During the mold installation process, the lower mold moving group 200 carries the stamping lower mold 210 and the stamping upper mold 310 matched with the lower mold to move along the direction of the double-action linear mold group 110. When the lower mold moving group 200 enters the stamping station, the edge of the stamping upper mold 310 is automatically aligned with the entrance position of the sliding groove 301 of the stamping plate 300, and is slid under the stamping plate 300 in the direction of the sliding groove 301 under the guidance. When the upper mold slides into position, the insertion of the positioning pin 350 can complete the assembly and fixation of the upper mold, and realize the automatic positioning installation of the mold.

[0082] The design fully considers the arrangement characteristics of the full-automatic structure of the equipment. Since the stamping plate 300 is surrounded by multiple automatic devices such as the feeding mechanical arm 610, the waste mechanical arm 620, the upper and lower camera modules 700, the vibration module 500, and the tray receiving mechanism, the manual operation cannot directly reach the center area of the stamping plate 300 outside the equipment, and the traditional manual vertical lifting or manual alignment installation mode is difficult to operate and low in efficiency. Through the lateral installation structure of the sliding groove 301, the automatic introduction and positioning of the upper mold can be realized by means of the linear guidance movement of the lower mold moving group 200, without the need for the operator to enter the inside of the equipment for adjustment.

[0083] The scheme realizes the rapid clamping and automatic positioning of the upper mold in a space-limited environment, guarantees the repeated precision and parallelism of the mold installation, and significantly reduces the workload of manual intervention. The upper mold installation and disassembly can be completed by the lower mold moving group 200, and the operation process is simple, the mold changing time is short, and the positioning is reliable. Through the design, the compound punch press realizes the automatic mold replacement in a narrow equipment space while guaranteeing the high-precision punching performance, and greatly improves the maintainability and production convenience of the whole machine.

[0084] In the embodiment, the stamping plate 300 is provided with a sensor 360 for monitoring the position state of the stamping upper mold 310 during the installation process in real time. When the stamping upper mold 310 slides into the stamping plate 300 in the direction of the sliding groove 301, the sensor 360 continuously detects the displacement process of the upper mold, and transmits the detection signal to the control system for judgment. When the upper mold slides to the predetermined installation position, the sensor 360 outputs the in-position signal, and the control system automatically stops the forward movement of the lower mold moving group 200 accordingly, so as to complete the accurate positioning of the upper mold. The sensor 360 can be in the form of a proximity switch, a photoelectric sensor 360, or a displacement sensor 360, and the specific selection can be determined according to the equipment space and environmental requirements.

[0085] By setting the position sensor 360 on the punch plate 300, the system can realize dynamic monitoring and closed-loop control of the upper die installation during the automatic die setting process. When the upper die is not in place or the position is abnormal, the control system can automatically stop the movement of the lower die moving group 200 and issue an alarm to prevent the mold from being locked or misaligned into the punching station, affecting the machining precision. When the detection signal confirms that the upper die is installed in place, the control system automatically locks the current position and cuts off the driving command to ensure that the upper die remains in the correct installation posture.

[0086] This design enables the installation process of the upper die to be completed automatically without manual visual confirmation or measurement, and is particularly suitable for fully automatic production lines with narrow internal space that is difficult for humans to directly observe or reach. Through real-time feedback from the position sensor 360, the mold assembly process can be ensured to be safe and reliable, with high positioning accuracy, further improving the automation level and operational stability of the compound punch press during mold replacement.

[0087] In this embodiment, the material receiving module 900 of the compound punch press adopts a double-layer transmission track structure, with the upper layer track used for receiving and transporting full material trays, and the lower layer track used for transporting empty trays for standby. The material receiving module 900 is located on one side of the unloading station and corresponds to the working area of the unloading manipulator 910. After the full material tray carried by the material receiving group 400 exits the punching station, the unloading manipulator 910 immediately descends and grabs the full material tray through suction or gripper structure, and then places it into the upper layer track of the material receiving module 900 along the horizontal stroke. After the full material tray is placed, the unloading manipulator 910 does not need to return to the initial position and can continue to move to the lower layer track area and directly suck the empty tray in standby state, transferring it to above the material receiving group 400 and accurately placing it. In this way, the transfer of the full material tray and the replacement of the empty tray are sequentially completed in the same action cycle without additional waiting, significantly improving the beat efficiency of the entire machine.

[0088] In this embodiment, the material receiving module 900 adopts an upper and lower independent conveying structure, with the upper layer being a full tray conveyor belt and the lower layer being an empty tray conveyor belt. The working process is as follows: after the full material tray carried by the material receiving group 400 exits to the unloading station, the unloading manipulator 910 only performs grabbing and placing actions on the full material tray, placing it on the upper layer conveyor belt; the upper layer conveyor belt then transports the full material tray to the buffer or takes it away. At the same time, the lower layer empty tray conveyor belt is indexed synchronously during the manipulator action; the material receiving group 400 can directly receive the empty tray without the intervention of the manipulator, and immediately returns to the punching station after positioning is completed to standby for receiving material. Since the full tray is transferred by the manipulator and the empty tray is automatically forwarded by the lower layer conveyor belt, the two channels are executed in parallel without waiting for each other, thereby achieving nearly synchronous completion of the tray loading and unloading, significantly shortening the idle time of the station and improving the beat of the entire machine.

[0089] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent ones. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A compound punch, characterized by, The utility model relates to a stamping platform (100) is provided with double -action linear module (110) on the stamping platform (100), lower die group (200) is slidably installed on double -action linear module (110), and lower die group (200) is used for carrying stamping lower die (210) and drives stamping lower die (210) to and fro between feeding station and stamping station, stamping plate (300) is located above stamping station, and stamping plate (300) is used for fixing stamping upper die (310), and stamping plate (300) drives stamping upper die (310) to carry out stamping operation through stamping drive mechanism, receiving group (400) is slidably installed on double -action linear module (110), and receiving group (400) is used for carrying tray and drives tray to and fro between stamping station and unloading station, vibration module (500) is installed on stamping plate (300), and vibration module (500) is used for driving stamping plate (300) and stamping upper die (310) vibration, and the finished product on stamping upper die (310) is separated from stamping upper die, wherein the lower die group (200) drives the stamping lower die (210) carrying the workpiece to the stamping station, the stamping plate (300) drives the stamping upper die to stamp the workpiece downward and makes the finished product formed by stamping adhere to the surface of the stamping upper die; when the lower die group (200) drives the stamping lower die to leave the stamping station, the receiving group (400) carries the tray into the stamping station, and the vibration module (500) is started to separate the finished product from the stamping upper die and fall into the tray to complete unloading; the vibration module (500) includes a vibration cylinder (510) and a vibration plate (520), the vibration plate (520) is slidably installed above the stamping plate (300) through a knocking column, the vibration cylinder is fixed above the vibration plate (520), the mover of the vibration cylinder is connected with the vibration plate (520), wherein the vibration cylinder is used for driving the vibration plate (520) to knock the stamping plate (300) through the knocking column, so that the workpiece on the other side of the stamping plate (300) falls off the surface of the stamping upper die; further comprising an upper material mechanical hand (610) and a waste material mechanical hand (620); the upper material mechanical hand (610) and the waste material mechanical hand (620) are installed above the stamping platform (100) through a double -action linear motor; the upper material mechanical hand (610) is used for grabbing the workpiece to the lower die group (200) of the feeding station; the waste material mechanical hand (620) is used for grabbing the waste material from the lower die group (200) and shifting; further comprising a lower camera module (700), the lower camera module (700) is located on the stroke route of the upper material mechanical hand (610), and is used for shooting the workpiece grabbed by the upper material mechanical hand (610); the upper material mechanical hand (610) further comprises a rotating module, the rotating module is used for driving the end effector rotating of the upper material mechanical hand (610) according to the data of the lower camera module (700), and completing the angle correction of the workpiece; ​ ​ ​ ​ ​ Also include the upper camera module (800), the upper camera module (800) corresponds to the upper material station, for shooting and identifying the workpiece on the lower die moving group (200); when the workpiece is defective, the waste material manipulator (620) takes out the defective product from the lower die moving group (200).

2. The compound punch press according to claim 1, wherein The stamping driving mechanism comprises: A driving motor (320) is fixed below the stamping platform (100); A guide column (330) is connected with the stamping plate (300) at the upper end and connected with the sliding plate (340) at the lower end, and the guide column (330) penetrates the stamping platform (100) and can slide relative to the stamping platform (100); Wherein, the driving motor (320) drives the sliding plate (340) to displace up and down through the screw rod, and the sliding plate (340) drives the stamping plate (300) to perform stamping work through the guide column (330).

3. The compound punch press of claim 1, wherein, The receiving moving group (400) comprises a jacking module (410), which is used for jacking the material disc to make the material disc close to the stamping upper die (310) when the receiving moving group (400) is located at the stamping station.

4. The compound punch press of claim 1, wherein, The stamping plate (300) is provided with a sliding groove (301) in the direction of the double-motor linear module (110), and the stamping upper die (310) is installed on the stamping plate (300) through the sliding groove (301); The stamping plate (300) is provided with a pin hole, and the pin hole is used for accommodating a pin (350), and the pin (350) is used for fixing the stamping upper die (310); When installing the stamping upper die (310), the lower die moving group (200) carries the stamping lower die (210) and the stamping upper die (310) engaged with the stamping lower die (210) slides in the direction of the double-motor linear module (110), so that the edge of the stamping upper die (310) slides into the sliding groove (301) to complete the installation.

5. The compound punch of claim 4, wherein The stamping plate (300) is provided with a sensor (360) for monitoring the installation position of the stamping upper die (310).

6. The compound punch press of claim 1, wherein, Also include the receiving module (900) and the unloading manipulator (910); The unloading manipulator (910) is used for grabbing the full material disc from the receiving moving group (400) of the unloading station and transferring to the receiving module (900) to complete the unloading; The receiving module is provided with double-layer transmission tracks for unloading and loading the material disc between the receiving module and the receiving moving group (400).

Images