A feeding device of a laser drilling machine

Abstract

The present disclosure relates to the technical field of laser drilling, and provides a feeding device of a laser drilling machine. The feeding device comprises a rack, a feeding mechanism, a pre-positioning mechanism and a transfer mechanism arranged on the rack. The feeding mechanism is used for continuously providing unprocessed sheets to a feeding station; the pre-positioning mechanism has pre-positioning stations corresponding to a plurality of drilling stations, and is used for array positioning of the unprocessed sheets, so that the plurality of unprocessed sheets form a spatial distribution relationship matching the drilling stations; the transfer mechanism comprises a moving assembly and a suction assembly connected to a moving end of the moving assembly, the suction assembly is used for synchronous suction of the plurality of unprocessed sheets, and the moving assembly can drive the suction assembly to move between the feeding station, the pre-positioning station and the drilling station. The plurality of sheets can naturally form the spatial distribution relationship matching the drilling stations after pre-positioning, and the relative position consistency required by multi-station synchronous processing is stabilized from the source.

Description

Technical Field

[0001] This disclosure relates to the field of laser drilling technology, and more specifically, to a feeding device for a laser drilling machine. Background Technology

[0002] LTCC green ceramic, HTCC green ceramic, and ferrite sheet materials are widely used in the manufacturing of electronic components, microwave devices, packaging substrates, and magnetic devices. During manufacturing, it is typically necessary to machine through-holes, semi-through-holes, and cavities onto the sheet material to meet the requirements of conductive connections, lamination, and functional structure forming. For the processing of these sheet materials, laser drilling equipment is often used to achieve automated processing.

[0003] In existing technologies, laser drilling equipment typically includes a loading mechanism, a laser processing mechanism, and a unloading mechanism. As processing demands increasingly prioritize higher efficiency and faster cycle times, existing equipment is beginning to employ dual-laser-head or multi-station synchronous processing methods to improve overall processing efficiency. To avoid impacting the overall cycle time, the loading mechanism is usually only used for material handling, while the positioning of the material primarily relies on the positioning structure within the drilling station. Therefore, existing equipment typically avoids multi-stage positioning control in the material transfer path.

[0004] In existing multi-station laser drilling equipment, the feeding mechanism typically functions primarily to simultaneously transport multiple sheets. During feeding, adsorption, and transfer, these sheets are susceptible to initial placement errors, adsorption position errors, and transport vibrations, leading to changes in the relative spacing and array distribution between the sheets. Although a positioning structure can be incorporated into the drilling mechanism for final sheet positioning, when the initial deviation of multiple sheets entering the drilling mechanism is significant, the positioning structure must handle substantial positional corrections. This can easily result in increased positioning time, sheet edge damage, and other defects, leading to decreased alignment consistency across multiple stations and consequently affecting laser drilling accuracy and processing stability.

[0005] Therefore, multi-station laser drilling equipment makes it difficult to maintain a spatial distribution relationship that matches the processing station when multiple pieces are transferred, which is not conducive to the consistency and processing accuracy of multi-station synchronous drilling.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure. Summary of the Invention

[0007] The purpose of this disclosure is to provide a feeding device for a laser drilling machine, which solves the problem that multi-station laser drilling equipment has difficulty in maintaining a spatial distribution relationship that matches the processing station during the transfer process.

[0008] Other features and advantages of this disclosure will become apparent from the following detailed description, or may be learned in part from practice of this disclosure.

[0009] According to one aspect of this disclosure, a feeding device for a laser drilling machine is provided, the laser drilling machine having multiple drilling stations, the feeding device comprising: frame; A feeding mechanism is provided on the frame. Multiple feeding mechanisms are provided, and each feeding mechanism has a feeding station. The feeding mechanism is used to continuously provide the material to be processed to the feeding station. A pre-positioning mechanism is provided on the frame. The pre-positioning mechanism has pre-positioning stations corresponding to multiple drilling stations. Each pre-positioning station is provided with a positioning component for array positioning of the workpiece to be processed, so that the multiple workpieces to be processed form a spatial distribution relationship that matches the drilling stations. A transfer mechanism is provided on the frame. The transfer mechanism includes a moving component and an adsorption component connected to the moving end of the moving component. The adsorption component is used to simultaneously adsorb multiple pieces of material to be processed. The moving component can drive the adsorption component to move between the feeding station, the pre-positioning station and the drilling station. In the process of transferring the workpiece to be processed to the pre-positioning station, the positioning component positions the workpiece and completes the positioning after it has fully entered the pre-positioning station.

[0010] Optionally, the feeding mechanism includes: Mounting base, fixed to the frame, with guide posts fixed on the mounting base; A lifting component is connected to the frame and located below the mounting base; A lifting plate is connected to the moving end of the lifting component. The guide column movably passes through the lifting plate. A temporary storage base is fixedly provided on the lifting plate, and the material to be processed is placed on the temporary storage base. An optical fiber sensor is connected to the frame via a sensor bracket, and the optical fiber sensor is at the same height as the feeding station.

[0011] Optionally, a side-stop column is fixedly connected to the mounting base, and two side-stop columns are symmetrically arranged around the center of the mounting base on each side of the material to be processed; The mounting base has multiple mounting holes for mounting the edge posts, which can accommodate different sizes of the workpieces to be processed.

[0012] Optionally, the plurality of the edge posts are arranged to form a first limiting space, and the limiting range of the first limiting space in a plane parallel to the mounting base is greater than the boundary range of the material to be processed.

[0013] Optionally, the pre-positioning mechanism includes a linear slide table disposed on the frame, and a sliding seat is slidably mounted on the linear slide table; The positioning component is mounted on the sliding seat. The linear slide can drive the positioning component to move from the avoidance position to the predetermined position along the X-axis. When it is in the predetermined position, the positioning component is located above the feeding mechanism, so that the multiple positioning stations correspond one-to-one with the multiple feeding stations.

[0014] Optionally, the positioning component includes: The fixed base is fixedly mounted on the sliding base; A vacuum adsorption seat is fixedly connected to the fixed seat. The vacuum adsorption seat is provided with vacuum suction holes, which adsorb the material to be processed by vacuum adsorption. A first alignment groove is opened on a set of adjacent sides of the vacuum adsorption seat, and a second alignment groove is opened on another set of adjacent sides of the vacuum adsorption seat. A fixed positioning block is fixedly connected to the fixed base, and the fixed positioning block is correspondingly disposed in the first alignment groove; The movable positioning block is movably connected to the fixed base by a cylinder. The movable positioning block is correspondingly arranged with the second alignment groove. The cylinder can drive the movable positioning block to move towards or away from the bottom of the second alignment groove. Wherein, the suction force of the vacuum adsorption seat on the material to be processed is less than the driving force of the cylinder driving the movable positioning block to move.

[0015] Optionally, the mounting base is provided with multiple mounting slots for mounting the fixing and positioning blocks to accommodate different sizes of the workpieces to be processed.

[0016] Optionally, both the fixed positioning block and the movable positioning block have guide slopes machined on the edges of their tops facing the vacuum adsorption seat.

[0017] Optionally, the positioning component further includes a distance sensor. A through hole is provided at the center of the vacuum adsorption seat. The through hole is located at the center of the workpiece to be processed after it has been positioned to a preset position at the drilling station or the pre-positioning station. The distance sensor is disposed in the through hole and is electrically connected to the cylinder and the vacuum adsorption seat.

[0018] Optionally, the positioning component further includes a balancing receiving part, wherein four sets of balancing receiving parts are symmetrically arranged around the through hole, and the four sets of balancing receiving parts correspond to the four sides of the vacuum adsorption seat, and any set of balancing receiving parts includes: The insertion rod has a through hole on the vacuum adsorption seat, and the insertion rod is movably inserted into the through hole. The bottom ends of the insertion rods of the four sets of balance bearing parts are all connected to the telescopic end of the electric push rod. The limiting block has a groove on the vacuum adsorption seat that is coaxial with and communicates with the through hole. The diameter of the groove is larger than the diameter of the through hole. The limiting block is fixedly sleeved on the insertion rod. A receiving connector is movably sleeved on the end of the insert rod and located above the limiting block. The receiving connector can approach the limiting block along the axial direction of the insert rod. A spring is provided between the receiving connector and the limiting block. When the spring is in its normal state, both the limiting block and the receiving joint can be fully embedded in the groove.

[0019] Optionally, the receiving joint includes a slider sleeved on the insert rod and a pressure block fixedly connected to the slider. When the spring is in its normal state, there is a gap between the pressure block and the top end of the insert rod. A pressure sensor is provided at the top end of the insert rod. The pressure sensor is electrically connected to the cylinder and the electric push rod. When all four pressure sensors are triggered, the electric push rod is activated. When the sliding seat is in the predetermined position, the receiving joint extends from the upper surface of the vacuum adsorption seat, and when the moving component transfers the workpiece to be processed to the predetermined position, the pressing block contacts the workpiece when the moving component drives the workpiece to be processed to the dropping position.

[0020] Optionally, an electromagnetic block is provided on the limiting block, and a permanent magnet block is provided on the side of the slider facing the limiting block. When the difference between the pressure sensor detection values ​​at the top ends of the two opposing insertion rods is greater than a preset value, the electromagnetic block on the side with the relatively larger detection value is energized and repels the permanent magnet block on that side.

[0021] Optionally, the moving component is a dual-axis moving stage, and the adsorption component is a vacuum suction cup. The vacuum suction cup is connected to the moving end of the dual-axis moving stage to drive the vacuum suction cup to move along the Y-axis or Z-axis. The vacuum suction cup has multiple suction cups that match the spatial distribution of the drilling station.

[0022] According to another aspect of this disclosure, a laser drilling machine is also provided, including a feeding device as described above, a drilling device, and a unloading device. The drilling device has multiple drilling stations, and the transfer mechanism is capable of transferring the workpiece to be processed from a predetermined positioning station to the drilling station.

[0023] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a feeding device for a laser drilling machine. By setting up pre-positioning mechanisms corresponding to multiple drilling stations within the feeding device, and having the transfer mechanism position the material sheet by a positioning component during the transfer of the sheet to the pre-positioning station, positioning is completed after the sheet has fully entered the pre-positioning station. On one hand, the pre-positioning stations are arranged in an array according to the drilling station layout, and the positioning component is fixed with the frame reference, allowing multiple sheets to naturally form a spatial distribution relationship matching the drilling stations after pre-positioning, thus stabilizing the relative positional consistency required for synchronous processing at multiple stations from the source. On the other hand, positioning occurs during the gradual entry of the sheet into the pre-positioning station and is completed after full entry, ensuring the sheet completes its final positioning under more adequate load-bearing, guiding, and limiting conditions. This reduces displacement caused by handling vibration, adsorption eccentricity, or initial placement errors, thereby reducing the amount and time of correction required by the drilling station positioning structure and lowering the probability of damage such as squeezing or scratching to the sheet edges during the positioning process. Since the drilling station deals with an array of materials that are more consistent, the alignment consistency of multiple stations is improved, making it easier to ensure the hole position accuracy and processing stability of laser drilling. At the same time, it reduces the fluctuations caused by the drilling station correcting large deviations at the cycle time level, making the equipment more suitable for high-efficiency, high-cycle multi-station synchronous processing needs.

[0024] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0027] Figure 1 This is a schematic diagram of the feeding device for a laser drilling machine.

[0028] Figure 2 This is a schematic diagram of the feeding mechanism and the pre-positioning mechanism.

[0029] Figure 3 This is a schematic diagram of the material feeding mechanism.

[0030] Figure 4 This is a schematic diagram of the pre-positioning mechanism.

[0031] Figure 5 This is a schematic diagram of the positioning component.

[0032] Figure 6 A structural diagram of the balancing support section.

[0033] Illustrations: 1. Frame; 2. Feeding mechanism; 21. Mounting base; 211. Guide column; 212. Side guard column; 22. Lifting component; 23. Lifting plate; 24. Fiber optic sensor; 3. Pre-positioning mechanism; 31. Linear slide; 32. Sliding seat; 33. Positioning assembly; 331. Fixed seat; 332. Vacuum adsorption seat; 3321. First alignment groove; 3322. Second alignment groove; 3323. Through hole; 3324. Embedded groove; 333. Fixed positioning block; 334. Movable positioning block; 335. Cylinder; 336. Distance sensor; 337. Balance receiving part; 3371. Insert rod; 3372. Limiting block; 3373. Slider; 3374. Pressure block; 3375. Spring; 4. Transfer mechanism; 41. Moving assembly; 42. Adsorption assembly. Detailed Implementation

[0034] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0035] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0036] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] Example 1: like Figures 1-6As shown, this embodiment of the invention provides a feeding device for a laser drilling machine, which is suitable for feeding sheet materials such as LTCC green ceramic, HTCC green ceramic and ferrite before laser drilling. Through structural improvements, this embodiment of the invention aims to provide a feeding device that maintains a spatial distribution relationship matching the processing station during the transfer of multiple sheet materials in a multi-station laser drilling process.

[0038] like Figure 1 , Figure 2 As shown, in this embodiment, the laser drilling machine has multiple drilling stations. The feeding device includes a frame 1 and a feeding mechanism 2, a pre-positioning mechanism 3, and a transfer mechanism 4 mounted on the frame 1. The feeding mechanism 2 has multiple sets, each with a feeding station. The feeding mechanism 2 continuously supplies the workpiece to be processed to the feeding station. The pre-positioning mechanism 3 has pre-positioning stations corresponding to the multiple drilling stations. Each pre-positioning station is equipped with a positioning component 33 for array positioning of the workpieces to be processed, so that the multiple workpieces form a spatial distribution relationship matching the drilling station. The transfer mechanism 4 includes a moving component 41 and an adsorption component 42 connected to the moving end of the moving component 41. The adsorption component 42 is used to simultaneously adsorb multiple workpieces to be processed. The moving component 41 can drive the adsorption component 42 to move between the feeding station, the pre-positioning station, and the drilling station. During the transfer of the workpiece to be processed to the pre-positioning station, the positioning component 33 positions the workpiece and completes the positioning after it has fully entered the pre-positioning station.

[0039] Specifically, the laser drilling machine has two or four drilling stations arranged in parallel to each other, used to simultaneously perform laser drilling on multiple sheets. The frame 1 is used to support the feeding mechanism 2, the pre-positioning mechanism 3 and the transfer mechanism 4, and provides the relative installation reference between each station to ensure the stability of the spatial positional relationship between the feeding station, the pre-positioning station and the drilling station.

[0040] The feeding mechanism 2 is mounted on the frame 1. The feeding mechanism 2 has feeding stations, and each feeding station corresponds to each drilling station in terms of quantity and arrangement. The feeding mechanism 2 continuously supplies the sheet material to be processed to the corresponding feeding station. For example, the feeding mechanism 2 can employ a stacking hopper, lifting and supporting components, or sheet-splitting components, so that the sheet material is pushed onto the bearing surface of the feeding station in a rhythmic manner. The feeding station can be equipped with a table or bearing tray to support the sheet material, placing the sheet material in an attractive and easily transportable position.

[0041] The pre-positioning mechanism 3 is mounted on the frame 1. The pre-positioning mechanism 3 has multiple pre-positioning stations corresponding to multiple drilling stations, and each pre-positioning station forms a one-to-one spatial array with the drilling stations. Each pre-positioning station is equipped with a positioning component 33 for array positioning of the workpieces to be processed, ensuring that the multiple workpieces to be processed form a spatial distribution relationship at the pre-positioning mechanism 3 that matches the drilling stations. The positioning reference of each pre-positioning station is fixed relative to the installation reference of the frame 1, thereby ensuring that the array spacing and row / column relationship after positioning are compatible with the subsequent drilling stations.

[0042] The transfer mechanism 4 is mounted on the frame 1. The transfer mechanism 4 includes a moving component 41 and an adsorption component 42 connected to the moving end of the moving component 41. The adsorption component 42 is used to simultaneously adsorb multiple pieces to be processed. The moving component 41 can drive the adsorption component 42 to move between the feeding station, the pre-positioning station, and the drilling station. For example, the moving component 41 can be a linear module or a multi-axis slide, capable of displacement in at least two directions to complete the reciprocating transport from the feeding station to the pre-positioning station and then to the drilling station. The adsorption component 42 may include a suction cup array and a vacuum chamber. Its adsorption points match the array layout of the feeding station, the pre-positioning station, and the drilling station, thereby achieving simultaneous transport of multiple pieces at once.

[0043] In actual implementation, after the feeding mechanism 2 delivers multiple sheets to each feeding station, the transfer mechanism 4 drives the adsorption component 42 to move above the feeding station and descend, so that the adsorption component 42 simultaneously adsorbs multiple sheets and lifts them away from the feeding station. Subsequently, the moving component 41 drives the adsorption component 42 to move above the pre-positioning station corresponding to the pre-positioning mechanism 3 and descends to place the sheet. During the process of transferring the sheet to be processed to the pre-positioning station, that is, during the process of the adsorption component 42 carrying the sheet closer to the pre-positioning station and gradually entering the pre-positioning station, the positioning component 33 of each pre-positioning station has a limiting effect on the sheet. For example, when the sheet comes into contact with the positioning component 33, the sheet is constrained and pushed against the positioning reference during the continued descent or micro-introduction, thereby completing the correction of the single sheet position. Since the positioning components 33 of each pre-positioning station are set in a fixed array, multiple sheets are simultaneously corrected to an array distribution that matches the drilling station during this stage.

[0044] Furthermore, the positioning component 33 completes the positioning of the workpiece after it has fully entered the pre-positioning station. That is, the positioning action does not end prematurely before the workpiece has stably fallen into the pre-positioning station, but rather completes the final positioning only after the workpiece enters the bearing area of ​​the pre-positioning station and reaches the preset positioning state, thus forming a stable and repeatable array reference at the pre-positioning station. After pre-positioning is completed, the transfer mechanism 4 synchronously picks up the multiple pre-positioned workpieces again and transfers them as a whole to multiple drilling stations for further processing by the drilling mechanism.

[0045] By setting up pre-positioning mechanisms 3 corresponding to multiple drilling stations in the feeding device, and positioning components 33 performing positioning during the transfer mechanism 4's transfer of the sheet to the pre-positioning station, and completing positioning after the sheet has fully entered the pre-positioning station. On the one hand, the pre-positioning stations are arranged in an array according to the drilling station, and the positioning components 33 are fixed with the frame 1 as a reference, so that multiple sheets naturally form a spatial distribution relationship matching the drilling station after pre-positioning, stabilizing the relative positional consistency required for multi-station synchronous processing from the source; on the other hand, positioning occurs during the gradual entry of the sheet into the pre-positioning station and is completed after full entry, allowing the sheet to complete its final positioning under more sufficient conditions of bearing, guiding, and limiting, reducing displacement caused by handling vibration, adsorption eccentricity, or initial placement errors, thereby reducing the amount and time of correction required by the drilling station positioning structure, and reducing the probability of damage such as squeezing and scratching to the edge of the sheet during the positioning process. Since the drilling station deals with an array of materials that are more consistent, the alignment consistency of multiple stations is improved, making it easier to ensure the hole position accuracy and processing stability of laser drilling. At the same time, it reduces the fluctuations caused by the drilling station correcting large deviations at the cycle time level, making the equipment more suitable for high-efficiency, high-cycle multi-station synchronous processing needs.

[0046] like Figure 2 , Figure 3 As shown, in this embodiment of the invention, the feeding mechanism 2 includes: a mounting base 21 fixed on the frame 1, with a guide column 211 fixed on the mounting base 21; a lifting component 22 connected to the frame 1 and located below the mounting base 21; a lifting plate 23 connected to the moving end of the lifting component 22, with the guide column 211 movably passing through the lifting plate 23, and a temporary storage base fixedly provided on the lifting plate 23, on which the material to be processed is placed; and an optical fiber sensor 24 connected to the frame 1 via a sensor frame, with the optical fiber sensor 24 at the same height as the feeding station.

[0047] Specifically, the mounting base 21 is fixedly mounted on the frame 1 to support the various structures in the feeding mechanism 2. The mounting base 21 preferably has a plate-like structure. A guide column 211 is fixedly mounted on the mounting base 21, extending vertically and guiding the lifting movement of the lifting plate 23 to improve stability and accuracy during the lifting process. The lifting component 22 is connected to the frame 1 and located below the mounting base 21. The lifting component 22 can be driven by a cylinder 335, electric cylinder, screw lifting module, or linear motor, etc., to drive the lifting plate 23 to move vertically. The lifting plate 23 is connected to the moving end of the lifting component 22. The guide column 211 movably passes through the lifting plate 23, allowing the lifting plate 23 to slide up and down along the guide column 211. A temporary storage base is fixedly mounted on the lifting plate 23 to support the material to be processed and moves synchronously with the lifting plate 23.

[0048] Meanwhile, the fiber optic sensor 24 is fixedly connected to the frame 1 via a sensor bracket, and the height of the fiber optic sensor 24 is the same as the height of the feeding station. The fiber optic sensor 24 is used to detect whether the material to be processed has reached the preset feeding height. The fiber optic sensor 24 is connected to the frame 1 via a sensor bracket, which can be a telescopic bracket or a height-adjustable bracket, thereby allowing the fixed height of the fiber optic sensor 24 to be adjusted to adapt to different feeding requirements.

[0049] In practical applications, the lifting component 22 drives the lifting plate 23 to move upward, thereby causing the temporary storage base and the material pieces to be processed on it to rise synchronously, so that the uppermost material piece gradually approaches the height of the feeding station. When the uppermost material piece moves to the preset picking height, the adsorption component 42 of the transfer mechanism 4 can adsorb and pick up the material piece. This achieves continuous automatic feeding of the material pieces, improving the automation level of feeding and the continuity of feeding.

[0050] Understandably, when the top sheet to be processed is below the preset height, the fiber optic sensor 24 cannot detect the sheet signal, and the control system controls the lifting component 22 to continue driving the lifting plate 23 to rise. When the top sheet to be processed rises to the feeding station height and is detected by the fiber optic sensor 24, the control system controls the lifting component 22 to stop, thus keeping the top sheet to be processed in a suitable position for adsorption and picking. After the top sheet to be processed is taken away by the adsorption component 42, the fiber optic sensor 24 can no longer detect the sheet signal, and the control system again controls the lifting component 22 to drive the lifting plate 23 upward to lift the next sheet to be processed to the feeding station height, thereby achieving continuous automatic feeding.

[0051] Furthermore, a side-stop post 212 is fixedly connected to the mounting base 21, and two side-stop posts 212 are symmetrically arranged around the center of the mounting base 21 on each side of the material to be processed; the mounting base 21 is pre-set with multiple mounting holes for mounting the side-stop posts 212 to accommodate material to be processed of different sizes.

[0052] Specifically, each sheet to be processed is provided with two edge-stopping posts 212 on its side, meaning that each side of the sheet to be processed is constrained by two edge-stopping posts 212. Multiple edge-stopping posts 212 are located in the outer area of ​​the sheet to be processed and are spaced apart along the circumference of the sheet, thus forming an outer guide and constraint for the sheet to be processed. Preferably, the edge-stopping posts 212 are cylindrical. During the lifting and feeding process of the sheet to be processed, the edge-stopping posts 212 provide initial constraint on the position of the sheet to be processed, reducing the probability of lateral displacement, rotational displacement, or edge warping.

[0053] Meanwhile, the mounting base 21 has multiple mounting holes for installing the edge posts 212. These mounting holes are spaced apart along the length and width of the mounting base 21 to accommodate different sizes of workpieces. In practical applications, the edge posts 212 can be installed in different mounting holes according to the dimensions and boundary range of the workpiece, adjusting the relative spacing between the edge posts 212 to form a limiting area adapted to the corresponding workpiece. Preferably, the edge posts 212 are symmetrically distributed around the center of the mounting base 21, ensuring balanced limiting of the workpiece during placement and reducing the risk of workpiece displacement or tilting due to uneven force on one side.

[0054] Furthermore, multiple edge posts 212 are arranged to form a first limiting space, and the limiting range of the first limiting space in the plane parallel to the mounting base 21 is greater than the boundary range of the material to be processed.

[0055] Specifically, multiple retaining posts 212 are respectively disposed in the outer area of ​​the mounting base 21 and spaced apart around the center of the mounting base 21, thereby forming a first limiting space for accommodating the material to be processed. The first limiting space has a rectangular structure, and its shape is adapted to the outer contour of the material to be processed. The limiting range of the first limiting space in a plane parallel to the mounting base 21 is larger than the boundary range of the material to be processed; that is, when the material to be processed is placed in the first limiting space, a preset gap is maintained between the edge of the material to be processed and the retaining posts 212. This ensures that a buffer distance is reserved between each side of the material to be processed and the corresponding retaining post 212, allowing the material to be processed a certain amount of movement within the first limiting space, without being completely clamped by the multiple retaining posts 212.

[0056] like Figure 4 , Figure 5 and Figure 6 As shown, in this embodiment of the invention, the pre-positioning mechanism 3 includes a linear slide 31 mounted on the frame 1, and a sliding seat 32 sliding on the linear slide 31; a positioning component 33 is mounted on the sliding seat 32, and the linear slide 31 can drive the positioning component 33 to move from the avoidance position to the pre-positioning position along the X-axis direction. When in the pre-positioning position, the positioning component 33 is located above the feeding mechanism 2, so that multiple positioning stations correspond one-to-one with multiple feeding stations.

[0057] Specifically, the linear slide 31 is fixedly mounted on the frame 1 and extends along the X-axis. The linear slide 31 can be a lead screw slide, a linear motor slide, or a synchronous belt slide, used to drive the sliding seat 32 to reciprocate along the first direction. The sliding seat 32 is slidably mounted on the linear slide 31 and connected to the drive end of the linear slide 31. Positioning components 33 are mounted on the sliding seat 32. Multiple positioning components 33 are preferably arranged in a rectangular array, corresponding to the array distribution of multiple feeding stations and multiple drilling stations.

[0058] The linear slide 31 drives the positioning component 33 to switch between a clearance position and a pre-positioning position along the X-axis. When the positioning component 33 is in the clearance position, it is located on one side of the feeding mechanism 2, offset from it, thus avoiding interference with the lifting and feeding action of the feeding mechanism 2 and the material handling action of the transfer mechanism 4. After the transfer mechanism 4 completes the adsorption of the material to be processed, the linear slide 31 drives the sliding seat 32 to move along the X-axis, causing the positioning component 33 to move from the clearance position to the pre-positioning position. When the positioning component 33 moves to the pre-positioning position, it is located directly above the feeding mechanism 2, so that multiple positioning stations correspond one-to-one with multiple feeding stations. This enables coordinated operation between the pre-positioning mechanism 3 and the feeding mechanism 2, and also avoids interference with the lifting action of the feeding mechanism 2 and the material handling action of the transfer mechanism 4, improving the overall utilization rate of the operating space.

[0059] After the positioning component 33 moves to the pre-positioning position, the transfer mechanism 4 can simultaneously place the multiple pieces of material to be processed that have been adsorbed into the corresponding positioning station for subsequent pre-positioning. After the pre-positioning is completed, the transfer mechanism 4 adsorbs the multiple pieces of material to be processed that have been positioned again and transfers them to the drilling station; then, the linear slide 31 drives the sliding seat 32 to move back to the avoidance position to provide space for the next round of feeding and transfer operations.

[0060] like Figure 4 , Figure 5 and Figure 6 As shown, in this embodiment of the invention, the positioning component 33 includes: a fixed base 331, fixedly mounted on a sliding base 32; a vacuum adsorption base 332, fixedly connected to the fixed base 331, the vacuum adsorption base 332 having vacuum suction holes arranged thereon, adsorbing the material to be processed by vacuum adsorption, a first alignment groove 3321 being formed on one set of adjacent sides of the vacuum adsorption base 332, and a second alignment groove 3322 being formed on another set of adjacent sides of the vacuum adsorption base 332; and a fixed positioning block 333, fixedly connected to the fixed base 331. On the fixed seat 331, the fixed positioning block 333 is correspondingly disposed in the first alignment groove 3321; the movable positioning block 334 is movably connected to the fixed seat 331 through the cylinder 335, and the movable positioning block 334 is correspondingly disposed in the second alignment groove 3322. The cylinder 335 can drive the movable positioning block 334 to move towards or away from the bottom of the second alignment groove 3322; wherein, the adsorption force of the vacuum adsorption seat 332 on the material to be processed is less than the driving force of the cylinder 335 to drive the movable positioning block 334 to move.

[0061] Specifically, the fixed base 331 is fixedly mounted on the sliding base 32 and serves as the mounting base structure for the entire positioning assembly 33; the vacuum adsorption base 332 is fixedly connected to the fixed base 331, and the vacuum adsorption base 332 is provided with multiple vacuum suction holes. The vacuum suction holes form a negative pressure environment through an external vacuum source, thereby achieving the adsorption and fixation of the material to be processed, so that the material to be processed remains stable during the pre-positioning process.

[0062] Meanwhile, the vacuum adsorption base 332 is a square base. A first alignment groove 3321 is formed on one set of adjacent sides of the vacuum adsorption base 332, and a second alignment groove 3322 is formed on another set of adjacent sides. These grooves are used to cooperate with the fixed positioning block 333 and the movable positioning block 334 respectively to achieve multi-directional positioning. The fixed positioning block 333 is fixedly connected to the fixed base 331 and correspondingly positioned within the first alignment groove 3321. The fixed positioning block 333 maintains a fixed position during use, forming a rigid fit with the first alignment groove 3321, thus creating a reference positioning constraint for the workpiece in one direction. The movable positioning block 334 is movably connected to the fixed base 331 via a cylinder 335, and is correspondingly positioned with the second alignment groove 3322. The cylinder 335 can drive the movable positioning block 334 to move closer to or further away from the bottom of the second alignment groove 3322, thereby achieving the clamping or releasing action of the workpiece.

[0063] During the pre-positioning process, the workpiece to be processed is first placed on the vacuum adsorption seat 332 by the transfer mechanism 4, and initially adsorbed and fixed by the vacuum suction holes. Subsequently, the cylinder 335 drives the movable positioning block 334 to move towards the second alignment groove 3322, so that the workpiece to be processed is gradually pushed into the standard positioning position under the joint action of the fixed positioning block 333 and the movable positioning block 334. This allows the workpiece to be processed to achieve bidirectional precise positioning through mechanical limiting on the basis of initial fixation by vacuum adsorption, effectively improving the positioning accuracy and repeatability of the workpiece.

[0064] Since the adsorption force of the vacuum adsorption seat 332 on the workpiece to be processed is less than the force of the cylinder 335 driving the movable positioning block 334, the workpiece to be processed will not be unable to move due to the adsorption force during the positioning process, but will be able to complete the position correction under the pushing action of the movable positioning block 334.

[0065] For example, the fixed position of the fixed positioning block 333 can be adjusted along the side direction perpendicular to the corresponding side of the vacuum adsorption seat 332, thereby adjusting the reference constraint range defined by the fixed positioning block 333 to adapt to different operational requirements.

[0066] Furthermore, the mounting base 331 is pre-set with multiple mounting slots for mounting the fixing and positioning blocks 333, to accommodate different sizes of the workpieces to be processed.

[0067] For example, the fixed positioning block 333 can be installed in the corresponding mounting slot through a structure involving a slot and bolts, thus achieving adjustable installation. By setting mounting slots for the fixed positioning block 333 at different positions on the same side, the reference constraint position of the fixed positioning block 333 can be adjusted to adapt to different sizes and specifications of the sheet material to be processed. Multiple mounting slots can be pre-designed modularly according to standard sheet material specifications, so that sheet materials of different specifications can be adapted simply by adjusting the installation position of the fixed positioning block 333, without replacing the entire positioning assembly 33, thereby improving the versatility and adaptability of the equipment.

[0068] Furthermore, both the fixed positioning block 333 and the movable positioning block 334 have guide slopes machined on their top edges facing the vacuum adsorption seat 332. The fixed positioning block 333 and the movable positioning block 334 enclose a second limiting space. By providing guide slopes on the top sides of the fixed positioning block 333 and the movable positioning block 334, the area at the entrance of the second limiting space is increased, facilitating the entry of the material to be processed into the second limiting space and preventing tilting or displacement.

[0069] Furthermore, the positioning component 33 also includes a distance sensor 336. A through hole 3323 is provided at the center of the vacuum adsorption seat 332. The through hole 3323 is located at the center of the workpiece to be processed after it has been positioned to a preset position at the drilling station or the pre-positioning station. The distance sensor 336 is located in the through hole 3323 and is electrically connected to the cylinder 335 and the vacuum adsorption seat 332.

[0070] Specifically, the through hole 3323 is located at the geometric center of the vacuum adsorption seat 332, and corresponds to the center position of the workpiece after final positioning at the pre-positioning station or drilling station. This ensures that the detection position is consistent with the processing reference position, thereby achieving accurate monitoring of the center state of the workpiece. A distance sensor 336 is located inside the through hole 3323, preferably a laser displacement sensor or a photoelectric distance sensor 336, used to detect changes in the vertical distance of the workpiece relative to the vacuum adsorption seat 332 in real time.

[0071] In actual operation, when the workpiece is placed on the vacuum adsorption seat 332, the distance sensor 336 detects the height information of the center area of ​​the workpiece in real time and feeds the detection signal back to the control system. The distance sensor 336 is electrically connected to the cylinder 335 and the vacuum adsorption seat 332. For example, as the workpiece approaches the vacuum adsorption seat 332, the distance sensor 336 detects the distance between the workpiece and the vacuum adsorption seat 332. Only when the workpiece enters the second limiting space or is completely on the vacuum adsorption seat 332 can the cylinder 335 be activated to pre-position the workpiece, thereby improving the controllability and accuracy of the positioning process.

[0072] like Figure 4 , Figure 5 and Figure 6 As shown, in this embodiment of the invention, the positioning component 33 further includes a balancing receiving part 337. The balancing receiving part 337 is symmetrically arranged in four groups around the through hole 3323. The four groups of balancing receiving parts 337 correspond to the four sides of the vacuum adsorption seat 332 respectively. Any group of balancing receiving parts 337 includes an insertion rod 3371, a limiting block 3372 and a receiving joint.

[0073] The vacuum adsorption seat 332 has a through hole, and the insertion rod 3371 is movably inserted into the through hole. The bottom ends of the insertion rods 3371 of the four sets of balance receiving parts 337 are all connected to the telescopic end of the electric push rod. The vacuum adsorption seat 332 has a groove 3324 that is coaxial with and connected to the through hole. The diameter of the groove 3324 is larger than the diameter of the through hole. The limiting block 3372 is fixedly sleeved on the insertion rod 3371. The receiving joint is movably sleeved on the end of the insertion rod 3371 and located above the limiting block 3372. The receiving joint can approach the limiting block 3372 along the axial direction of the insertion rod 3371. A spring 3375 is provided between the receiving joint and the limiting block 3372. When the spring 3375 is in the normal state, both the limiting block 3372 and the receiving joint can be completely embedded in the groove 3324.

[0074] Specifically, the balancing receiving part 337 provides balanced support and posture adjustment for the workpiece in multiple directions. A through hole is provided at a corresponding position on the vacuum adsorption seat 332, and the insert rod 3371 is movably inserted into the through hole and can reciprocate along the axial direction of the through hole. The bottom ends of the insert rods 3371 of the four sets of balancing receiving parts 337 are all connected to the telescopic end of the electric push rod, which drives the insert rods 3371 to move synchronously along the Y-axis. The vacuum adsorption seat 332 has a groove 3324 coaxial with and communicating with the through hole. The diameter of the groove 3324 is larger than the diameter of the through hole, thus providing embedding space for the limiting block 3372 and the receiving joint, allowing them to be completely housed inside the vacuum adsorption seat 332 in the retracted state without interfering with the placement and movement of the workpiece. The receiving joint is movably sleeved on the end of the insert rod 3371 and located above the limiting block 3372. The connector can move relative to the limiting block 3372 along the axial direction of the insertion rod 3371. A spring 3375 is provided between the connector and the limiting block 3372 to provide elastic buffering force, so that the connector can achieve flexible support when contacting the material sheet.

[0075] In actual operation, when the transfer mechanism 4 moves the workpiece to the predetermined position, the adsorption component 42 picks up the workpiece and stops at a predetermined distance from the vacuum adsorption seat 332. Then, the receiving joint smoothly places the workpiece onto the vacuum adsorption seat 332. Specifically, when the positioning component 33 moves to the predetermined position, the electric push rod drives the insertion rod 3371 to rise, causing the receiving joints of the four sets of balancing receiving parts 337 to extend from the grooves 3324. This allows the top of the receiving joint to contact the bottom or edge area of ​​the workpiece, providing multi-point support. Under the action of the spring 3375, the receiving joint can adaptively fine-tune according to the warping state of the workpiece, gradually flattening the overall posture and achieving balanced support. Then, the electric push rod drives the four sets of insertion rods 3371 to descend synchronously, smoothly placing the workpiece onto the vacuum adsorption seat 332. This effectively reduces the problem of workpiece tilting or center offset caused by uneven force on one side or free fall.

[0076] It is understandable that the top of the receiving joint is at the same height as the top of the fixed positioning block 333 and the movable positioning block 334. That is, the top of the receiving joint is at the top of the second limiting space. After the four receiving joints support the workpiece to be processed, they begin to descend, and the workpiece to be processed can immediately enter the second limiting space. Then, the cylinder 335 is started, and the movable positioning block 334 can start the pre-positioning control during the process of the workpiece to be processed entering the pre-positioning station, and complete the reference positioning when the workpiece to be processed is completely placed on the vacuum adsorption seat 332.

[0077] Furthermore, the receiving joint includes a slider 3373 sleeved on the insert rod 3371 and a pressure block 3374 fixedly connected to the slider 3373. When the spring 3375 is in its normal state, there is a gap between the pressure block 3374 and the top of the insert rod 3371. A pressure sensor is provided at the top of the insert rod 3371. The pressure sensor is electrically connected to the cylinder 335 and the electric push rod. When all four pressure sensors are triggered, the electric push rod starts. When the sliding seat 32 is in the predetermined position, the receiving joint extends out of the upper end face of the vacuum adsorption seat 332. When the moving component 41 transfers the workpiece to be processed to the predetermined position, the moving component 41 drives the workpiece to be processed to the dropping position, and the pressure block 3374 contacts the workpiece to be processed.

[0078] Specifically, the slider 3373 is sleeved on the outer periphery of the insertion rod 3371 and can slide along the axial direction of the insertion rod 3371. The spring 3375 is disposed between the slider 3373 and the limiting block 3372 and sleeved on the insertion rod 3371, thereby giving the entire connector a certain vertical floating capability. The pressure block 3374 is fixedly connected to the slider 3373 and located above the slider 3373, serving as a bearing component that directly contacts the material to be processed.

[0079] When spring 3375 is in its normal state, a preset distance is maintained between the pressure block 3374 and the top of the insertion rod 3371, allowing the receiving joint to have a buffer stroke when not under pressure. A pressure sensor is installed at the top of the insertion rod 3371 to detect the force state of the pressure block 3374. The pressure sensor is electrically connected to cylinder 335 and electric push rod to feed back the detection signal to the control system, realizing the linkage control of the movement of the balancing receiving part 337.

[0080] In actual operation, when all four sets of balancing receiving parts 337 are in contact with the material to be processed and generate effective pressure signals, all four pressure sensors are triggered. The control system determines that the material has completed the initial dropping and force balance. At this time, the electric push rod is activated, causing the insertion rod 3371 to drive the receiving joint for further fine-tuning or stable support. During the contact process, the pressure block 3374 achieves buffering adaptation through the sliding of the slider 3373 on the insertion rod 3371, so that the material to be processed is gradually and smoothly received, avoiding the material from breaking or shifting due to impact load. At the same time, the pressure sensors detect the changes in contact pressure in real time to determine whether the material has been correctly placed and whether the force is balanced.

[0081] Furthermore, an electromagnetic block is provided on the limiting block 3372, and a permanent magnet is provided on the side of the slider 3373 facing the limiting block 3372. When the difference between the pressure sensor detection values ​​at the top of the two opposing plug rods 3371 is greater than a preset value, the electromagnetic block on the side with the relatively larger detection value is energized and repels the permanent magnet on that side.

[0082] Specifically, the electromagnetic block is fixedly mounted on the limiting block 3372 and electrically connected to the control system to generate a controllable magnetic field when energized. The permanent magnet block is fixedly mounted on the side of the slider 3373 near the limiting block 3372.

[0083] In actual implementation, pressure sensors are installed at the top of each of the two opposing insertion rods 3371 to detect the force on the workpiece to be processed at the corresponding balancing receiving part 337. When there is a difference in the pressure sensor readings at the top of the two insertion rods 3371, the system determines that the workpiece to be processed is subjected to uneven force or has a positional shift in the corresponding direction.

[0084] For example, when the difference between the detection values ​​of two opposing pressure sensors exceeds a preset threshold, the control system energizes the electromagnetic block corresponding to the side with the larger detection value. This causes the electromagnetic block on that side to generate an electromagnetic force, which in turn creates a repulsive force with the permanent magnet on the corresponding slider 3373. Under the action of this electromagnetic repulsive force, the pressure block 3374 on that side undergoes a slight displacement along the axial direction of the insertion rod 3371. This provides a compensating adjustment to the balancing support part 337 on that side, reducing its support force on the workpiece or causing it to slightly retract its position, thereby achieving dynamic balance adjustment of the stress state of the workpiece.

[0085] For example, the moving component 41 is a dual-axis moving stage, and the adsorption component 42 is a vacuum suction cup. The vacuum suction cup is connected to the moving end of the dual-axis moving stage to drive the vacuum suction cup to move along the Y-axis or Z-axis. The vacuum suction cup has multiple suction cups that match the spatial distribution of the drilling station.

[0086] Specifically, the dual-axis moving stage is mounted above the feeding mechanism 2 via a gantry frame on the machine frame 1. A vacuum suction cup is connected to the moving end of the dual-axis moving stage, allowing it to move along the Y-axis or Z-axis under the drive of the stage. When moving along the Y-axis, the vacuum suction cup moves closer to or further away from the feeding mechanism 2; when moving along the Z-axis, the vacuum suction cup adsorbs the workpiece and transfers it between the feeding station and the drilling station. The vacuum suction cup has multiple adsorption positions that match the layout of the drilling station, allowing for the simultaneous adsorption of multiple workpieces.

[0087] Example 2: This invention also provides a laser drilling machine, including the feeding device of the laser drilling machine described above, as well as a drilling device and a unloading device. The drilling device has multiple drilling stations, and the transfer mechanism 4 can transfer the material to be processed at the pre-positioned station to the drilling station. After drilling at the drilling station, the unloading device transfers and collects the drilled material from the drilling station.

[0088] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0089] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A feeding device for a laser drilling machine, the laser drilling machine having multiple drilling stations, characterized in that, The feeding device includes: Rack (1); A feeding mechanism (2) is provided on the frame (1). The feeding mechanism (2) is provided in multiple sets, and each feeding mechanism (2) has a feeding station. The feeding mechanism (2) is used to continuously provide the material to be processed to the feeding station. A pre-positioning mechanism (3) is provided on the frame (1). The pre-positioning mechanism (3) has pre-positioning stations corresponding to multiple drilling stations. Each pre-positioning station is provided with a positioning component (33) for array positioning of the workpiece to be processed, so that multiple workpieces to be processed form a spatial distribution relationship matching the drilling station. The transfer mechanism (4) is mounted on the frame (1). The transfer mechanism (4) includes a moving component (41) and an adsorption component (42) connected to the moving end of the moving component (41). The adsorption component (42) is used to simultaneously adsorb multiple pieces of material to be processed. The moving component (41) can drive the adsorption component (42) to move between the feeding station, the pre-positioning station and the drilling station. In the process of transferring the workpiece to be processed to the pre-positioning station, the positioning component (33) positions the workpiece and completes the positioning after it has fully entered the pre-positioning station; the pre-positioning mechanism (3) includes a linear slide (31) set on the frame (1), and a sliding seat (32) slides on the linear slide (31); The positioning component (33) is mounted on the sliding seat (32). The linear slide (31) can drive the positioning component (33) to move from the avoidance position to the predetermined position along the X-axis. When in the predetermined position, the positioning component (33) is located above the feeding mechanism (2) so that the multiple predetermined positions correspond one-to-one with the multiple feeding positions. The positioning component (33) includes: A fixed base (331) is fixedly mounted on the sliding base (32); A vacuum adsorption seat (332) is fixedly connected to the fixed seat (331). The vacuum adsorption seat (332) is provided with vacuum suction holes, and the material to be processed is adsorbed by vacuum adsorption. A first alignment groove (3321) is opened on a set of adjacent sides of the vacuum adsorption seat (332), and a second alignment groove (3322) is opened on another set of adjacent sides of the vacuum adsorption seat (332). A fixed positioning block (333) is fixedly connected to the fixed base (331), and the fixed positioning block (333) is correspondingly disposed in the first alignment groove (3321); The movable positioning block (334) is movably connected to the fixed base (331) via a cylinder (335). The movable positioning block (334) is correspondingly arranged with the second alignment groove (3322). The cylinder (335) can drive the movable positioning block (334) to move towards or away from the bottom of the second alignment groove (3322). Wherein, the suction force of the vacuum adsorption seat (332) on the material to be processed is less than the driving force of the cylinder (335) to move the movable positioning block (334); the fixed positioning block (333) and the movable positioning block (334) are both processed with guide slopes on the edges of their tops facing the vacuum adsorption seat (332); The positioning component (33) further includes a distance sensor (336). A through hole (3323) is provided at the center of the vacuum adsorption seat (332). The through hole (3323) is located at the center of the workpiece to be processed after it has been positioned to a preset position at the drilling station or the pre-positioning station. The distance sensor (336) is located in the through hole (3323). The distance sensor (336) is electrically connected to the cylinder (335) and the vacuum adsorption seat (332). The positioning component (33) further includes a balancing receiving part (337), which is symmetrically arranged in four groups around the through hole (3323). The four groups of balancing receiving parts (337) correspond to the four sides of the vacuum adsorption seat (332). Each group of balancing receiving parts (337) includes: Insert rod (3371), the vacuum adsorption seat (332) has a through hole, the insert rod (3371) is movably inserted into the through hole, and the bottom end of the insert rod (3371) of the four sets of balance receiving parts (337) is connected to the telescopic end of the electric push rod; The limiting block (3372) has a groove (3324) on the vacuum adsorption seat (332) that is coaxial with and connected to the through hole. The diameter of the groove (3324) is larger than the diameter of the through hole. The limiting block (3372) is fixedly sleeved on the insert rod (3371). A connector is movably sleeved on the end of the insert rod (3371) and located above the limiting block (3372). The connector can approach the limiting block (3372) along the axial direction of the insert rod (3371). A spring (3375) is provided between the connector and the limiting block (3372). When the spring (3375) is in its normal state, both the limiting block (3372) and the receiving joint can be fully embedded in the groove (3324).

2. The feeding device for the laser drilling machine according to claim 1, characterized in that, The feeding mechanism (2) includes: Mounting base (21) is fixed on the frame (1), and guide post (211) is fixed on the mounting base (21); The lifting component (22) is connected to the frame (1) and located below the mounting base (21); A lifting plate (23) is connected to the moving end of the lifting component (22). The guide column (211) is movably inserted through the lifting plate (23). A temporary storage base is fixedly provided on the lifting plate (23), and the material to be processed is placed on the temporary storage base. The fiber optic sensor (24) is connected to the frame (1) via a sensor bracket, and the height of the fiber optic sensor (24) is the same as the height of the feeding station.

3. The feeding device for the laser drilling machine according to claim 2, characterized in that, The mounting base (21) is fixedly connected with a side guard post (212), and two side guard posts (212) are symmetrically arranged around the center of the mounting base (21) on each side of the material to be processed; The mounting base (21) has multiple mounting holes for mounting the edge post (212) to accommodate different sizes of the material to be processed.

4. The feeding device for the laser drilling machine according to claim 3, characterized in that, The plurality of the edge posts (212) are arranged to form a first limiting space, and the limiting range of the first limiting space in the plane parallel to the mounting base (21) is greater than the boundary range of the material to be processed.

5. The feeding device for the laser drilling machine according to claim 1, characterized in that, The fixed base (331) has multiple mounting slots for mounting the fixed positioning block (333) to accommodate different sizes of the material to be processed.

6. The feeding device for the laser drilling machine according to claim 1, characterized in that, The receiving joint includes a slider (3373) sleeved on the insert rod (3371) and a pressure block (3374) fixedly connected to the slider (3373). When the spring (3375) is in its normal state, there is a gap between the pressure block (3374) and the top end of the insert rod (3371). A pressure sensor is provided at the top end of the insert rod (3371). The pressure sensor is electrically connected to the cylinder (335) and the electric push rod. When all four pressure sensors are triggered, the electric push rod is activated. When the sliding seat (32) is in the predetermined position, the receiving joint extends out of the upper end face of the vacuum adsorption seat (332), and when the moving component (41) transfers the workpiece to be processed to the predetermined position, when the moving component (41) drives the workpiece to be processed to the dropping position, the pressing block (3374) contacts the workpiece to be processed.

7. The feeding device for the laser drilling machine according to claim 6, characterized in that, An electromagnetic block is provided on the limiting block (3372), and a permanent magnet is provided on the side of the slider (3373) facing the limiting block (3372). When the difference between the pressure sensor detection values ​​at the top ends of the two opposing insertion rods (3371) is greater than a preset value, the electromagnetic block on the side with the relatively larger detection value is energized and repels the permanent magnet on that side.

8. The feeding device for the laser drilling machine according to claim 1, characterized in that, The moving component (41) is a dual-axis moving stage, and the adsorption component (42) is a vacuum suction cup. The vacuum suction cup is connected to the moving end of the dual-axis moving stage to drive the vacuum suction cup to move along the Y-axis or Z-axis. The vacuum suction cup has multiple suction cups that match the spatial distribution of the drilling station.

9. A laser drilling machine, comprising a feeding device for the laser drilling machine as described in any one of claims 1-8, characterized in that, It also includes a drilling device and a feeding device. The drilling device has multiple drilling stations, and the transfer mechanism (4) can transfer the material to be processed at the pre-positioned station to the drilling station.

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