Numerical control drilling and pin planting all-in-one machine and plate processing method

Abstract

The application discloses a numerical control drilling and pin planting integrated machine and a plate processing method. The integrated machine comprises a rack, a supporting mechanism movably arranged on the rack along a first horizontal direction and a processing module. The processing module comprises: a mounting base configured to be movable along a second horizontal direction perpendicular to the first horizontal direction; a drilling execution end mounted on the mounting base and having a first lifting degree of freedom along a vertical direction; and a pin planting execution end mounted on the mounting base and having a second lifting degree of freedom along the vertical direction. The pin planting execution end comprises: a posture adjusting mechanism configured to drive the pin planting output end to switch between multiple orientations, a medium applying mechanism configured to apply adhesive medium to the hole, a pin feeding mechanism configured to feed the wood pin to the pin planting output end, and a pin driving mechanism configured to push the wood pin in the pin planting output end out and plant the wood pin into the hole. The problems of the existing plate drilling and pin planting processing procedures being dispersed and the processing efficiency being low are solved.

Description

Technical Field

[0001] This invention relates to the field of sheet metal processing technology, and in particular to a CNC drilling and pinning integrated machine and a sheet metal processing method. Background Technology

[0002] In the manufacturing of panel furniture, architectural decoration, and wood products, the reliability of edge connections directly affects the structural stability and durability of the finished product. Traditional processes generally rely on a combination of round dowels and glue for side reinforcement, but this process has long been plagued by the inherent defects of fragmented processes. Specifically, existing production systems separate drilling and dowel insertion into two independent stages, each completed using different equipment. In manual or semi-automated operation modes, operators must first use a drilling machine to drill holes on each side of the panel, then remove the panel from the workbench and transfer it to the dowel insertion area. This process involves repeated clamping and manual handling. Because the positioning reference is difficult to accurately reproduce each time, it is easy to cause cumulative positional deviations, resulting in the dowels not being able to accurately insert into the holes, forming the so-called "off-center hole" phenomenon, which seriously weakens the mechanical properties of the connection point. At the same time, frequent secondary positioning not only prolongs the processing cycle but also significantly increases labor input and time costs. In highly automated scenarios, although dedicated dowel insertion equipment has emerged, its function is limited, only performing dowel insertion tasks and unable to integrate drilling functions. Therefore, factories must configure separate drilling and dowel insertion production lines, with boards needing to be transferred between the two lines via conveyor belts or robotic arms. This cross-equipment transfer not only occupies a significant amount of workshop space but also disrupts production continuity due to mismatched production line cycles. More importantly, during the transfer process, the boards are susceptible to minor displacement or surface damage from external forces, causing previously drilled holes to shift, making it impossible for the dowel insertion mechanism to align accurately, ultimately resulting in failed dowel insertion or an increased product scrap rate. Furthermore, the actuators in the dowel insertion process generally suffer from unstable material supply, uneven glue application, and poor adaptability to multiple angles, making it difficult to meet the demand for simultaneous processing of multiple sides of the boards. In summary, the industry has long lacked a CNC equipment that can seamlessly integrate drilling and dowel insertion functions and support continuous multi-sided processing in a single clamping operation, resulting in persistent technical bottlenecks such as fragmented processes, insufficient positioning accuracy, poor material supply reliability, and low multi-sided processing efficiency. Existing technologies urgently need improvement to address these issues. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this invention provides a CNC drilling and pinning integrated machine and a plate processing method, thereby solving the problems of dispersed processing steps and low multi-faceted processing efficiency in the existing technology for plate drilling and pinning.

[0004] This invention is achieved using the following technical solution: A CNC drilling and pinning integrated machine, comprising: frame; A support mechanism for supporting the plate is configured to be movably mounted on the frame in a first horizontal direction; Processing modules, including: The mounting base is configured to move along a second horizontal direction perpendicular to the first horizontal direction; The drilling actuator is installed on the mounting base and has a first degree of freedom of vertical lifting, used to drill holes on multiple sides of the plate. The insertion pin actuator is installed on the mounting base and has a second degree of freedom of lifting along the vertical direction; The plant marketing execution terminal includes: The attitude adjustment mechanism is configured to drive the cane output end to switch between multiple positions to align with different sides of the board. A medium application mechanism is configured to apply an adhesive medium into the hole; A supply and delivery mechanism is configured to supply wooden pins to the pin output end; The dowel drive mechanism is configured to push out the wooden dowel in the dowel output end and insert it into the hole.

[0005] Furthermore, the pin-planting output end includes a pin-planting output seat with a pin-planting channel, and the output end of the posture adjustment mechanism is connected to the pin-planting output seat to switch the orientation of the pin-planting channel.

[0006] Furthermore, the output end of the attitude adjustment mechanism is connected to a transition seat, the transition seat has a through transition channel, the pin-planting output seat is connected to the transition seat, the pin-planting output seat also has a guide pin channel connecting the transition channel and the pin-planting channel, the input end of the guide pin channel is coaxially connected to the output end of the transition channel, and the output end of the pin-supplying mechanism is coaxially connected to the input end of the transition channel.

[0007] Furthermore, the pin output seat is provided with a pin-stopping mechanism. The movable end of the pin-stopping mechanism can extend into or out of the pin guide channel to selectively block or release the wooden pins buffered in the pin guide channel from falling into the pin planting channel.

[0008] Furthermore, the pin-stopping mechanism includes at least a first pin-stopping cylinder and a second pin-stopping cylinder. When the first piston rod of the first pin-stopping cylinder extends into the guide pin channel to block the falling of the upper wooden pin, the second piston rod of the second pin-stopping cylinder retracts from the guide pin channel, allowing the lowermost wooden pin to fall into the pin-planting channel. When the second piston rod of the second pin-stopping cylinder extends into the guide pin channel to block the bottom opening of the guide pin channel, the first piston rod of the first pin-stopping cylinder retracts from the guide pin channel to release the wooden pin.

[0009] Furthermore, the pin-driving mechanism includes a punch that can reciprocate and extend into the pin-planting channel, the axis of the punch being coaxial with the axis of the pin-planting channel.

[0010] Furthermore, the medium application mechanism includes a nozzle that moves with the output end of the planting pin, the nozzle being configured to spray liquid glue or atomized water vapor into the hole.

[0011] Furthermore, the medium application mechanism also includes a glue tank, a supply pipe connecting the nozzle and the glue tank, a water tank, and a fluid switching valve. The supply pipe is also connected to the water tank, and the fluid switching valve is disposed on the supply pipe for switching the connection state between the nozzle and the glue tank or the water tank.

[0012] Furthermore, the supply and delivery mechanism includes a vibratory feeder and a supply pipeline. The supply pipeline includes at least a first delivery pipe for connecting to the output end of the vibratory feeder, a vacuum generator for connecting to the output end of the first delivery pipe, a second delivery pipe for connecting to the vacuum generator, and a supply connector for connecting to the output end of the second delivery pipe. The vacuum generator has a pneumatic delivery channel connecting the first delivery pipe and the second delivery pipe, and the output end of the supply connector is connected to the supply channel.

[0013] A method for processing sheet metal, using the aforementioned CNC drilling and pinning machine to drill holes and insert pins into the sides of the sheet metal, includes the following steps: The positioning of the support mechanism in the first horizontal direction and the positioning of the mounting base in the second horizontal and vertical directions are controlled by the drilling execution end, which can first drill holes in the side of the plate. The mechanism controls the lifting and positioning of the dowel-implementing end, the attitude adjustment mechanism drives the dowel output end to align with the hole in the board, the medium application mechanism applies adhesive medium to the hole, the dowel supply and conveying mechanism supplies wooden dowels to the dowel output end, and the dowel-driving mechanism drives the wooden dowels into the hole. The mounting base is controlled to move relative to the plate to the other side. The attitude adjustment mechanism rotates so that the pin output end is aligned with the hole on the other side of the plate. The pin insertion operation is repeated to complete the pin insertion on multiple sides of the plate.

[0014] Compared with the prior art, the beneficial effects of the present invention include at least the following: This invention's integrated machine integrates the drilling and pinning ends onto a single processing module, enabling drilling and pinning operations on multiple sides of the sheet metal in a single clamping operation. This ensures the accuracy and consistency of drilling and pinning. This integrated design eliminates the need for handling the sheet metal between different devices, thus avoiding positioning errors caused by multiple clamping and transfers, significantly improving processing accuracy and product quality. Furthermore, the integrated machine utilizes a posture adjustment mechanism, allowing the pinning output end to flexibly switch between multiple orientations to align with different sides of the sheet metal. This design overcomes the limitation of traditional pinning mechanisms that can only perform pinning in a single direction, enabling the integrated machine to efficiently complete pinning tasks on multiple sides of the sheet metal, further improving production efficiency and equipment versatility. The integration of the media application mechanism, the supply and delivery mechanism, and the doping drive mechanism ensures the automation and continuity of the doping process. The media application mechanism also realizes the seamless automatic switching between dispensing and rinsing functions. This not only solves the industry problem of nozzles and supply pipes being blocked due to glue curing, but also reduces manual intervention, lowers labor intensity and production costs, and effectively solves the problems of dispersed processes, low positioning accuracy, poor material supply, and low efficiency of multi-faceted processing in existing technologies. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a CNC drilling and pin-insertion integrated machine according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the pin-planting execution end of an embodiment of the present invention performing pin-planting on the side of the board; Figure 3 yes Figure 2 Front view of the structure; Figure 4 This is a cross-sectional view of the planting and pinning execution end according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the pin-planting execution end of an embodiment of the present invention performing pin-planting on different sides of the board; In the diagram: 1. Frame; 2. Supporting mechanism; 3. Mounting base; 4. Drilling actuator; 5. Pin insertion actuator; 51. Attitude adjustment mechanism; 52. Medium application mechanism; 521. Nozzle; 522. Glue bucket; 53. Pin supply and delivery mechanism; 531. First delivery pipe; 532. Vacuum generator; 533. Second delivery pipe; 534. Pin supply connector; 54. Pin insertion drive mechanism; 541. Punch rod; 55. Pin insertion output seat; 551. Pin insertion channel; 552. Pin guide channel; 56. Transition seat; 561. Transition channel; 57. First pin stop cylinder; 58. Second pin stop cylinder; 581. Second piston rod; 6. Pressure plate mechanism; 7. Wooden pin; 8. Board material. Detailed Implementation

[0016] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided to make the invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0017] The terms used to express position and direction in this invention are illustrated with reference to the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this invention.

[0018] like Figures 1-5 As shown, the present invention provides a CNC drilling and pin insertion integrated machine, comprising: Rack 1; The support mechanism 2, for supporting the plate 8, is configured to be movably mounted on the frame in a first horizontal direction; Processing modules, including: Mounting base 3 is configured to move along a second horizontal direction perpendicular to the first horizontal direction; The drilling execution end 4 is installed on the mounting base 3 and has a first degree of freedom of vertical lifting, used to drill holes on multiple sides of the plate 8. The pin-implanting end 5 is installed on the mounting base 3 and has a second degree of freedom of lifting and lowering along the vertical direction; The planting and marketing execution terminal 5 includes: The attitude adjustment mechanism 51 is configured to drive the pin output end to switch between multiple positions to align with different sides of the board 8 respectively. The medium application mechanism 52 is configured to apply an adhesive medium into the hole; The supply and distribution mechanism 53 is configured to supply the wooden pins 7 to the pin output end; The dowel drive mechanism 54 is configured to push out the wooden dowel 7 in the dowel output end and insert it into the hole.

[0019] In this embodiment, the wooden dowel 7 refers to a cylindrical wooden connector used for connecting the boards 8. The drilling actuating end 4 is a tool used to drill holes in the board 8, which typically includes a drill bit and a motor that drives the drill bit to rotate, and has a vertical lifting capability to control the drilling depth and perform the drilling operation. The dowel insertion actuating end 5 is a tool used to insert the wooden dowel 7 into the hole in the board 8, and it also has a vertical lifting capability to control the insertion position of the wooden dowel 7.

[0020] This embodiment provides a CNC drilling and dowel insertion integrated machine. Its structural design aims to integrate the drilling and dowel insertion processes of the board 8. The equipment can perform precise hole processing on the board 8 through program control, and then insert wooden dowels 7 into these holes, thereby realizing the automation and high efficiency of board 8 connection. Its processing principle is as follows: First, the sheet material 8 to be processed is placed on the support mechanism 2 and precisely fixed. This support mechanism 2 can employ a vacuum suction cup array, using negative pressure to firmly adhere the sheet material 8 to the worktable, ensuring its stability throughout the processing. Next, the integrated machine's control system, according to a preset processing program, drives the support mechanism 2 to move along a first horizontal direction, while simultaneously driving the mounting base 3 to move along a second horizontal direction, thus precisely positioning the processing module on the first side of the sheet material 8 to be processed.

[0021] Once the processing module reaches the designated position, the drilling execution end 4 begins operation. Using its first degree of freedom, the drilling execution end 4 lowers the drill bit and drills holes in the side of the board 8. Under the command of the control system, the drill bit drills multiple holes at a set speed and depth. After completing drilling on one side, the drilling execution end 4 lifts up. Subsequently, the dowel insertion end 5 is activated. The attitude adjustment mechanism 51 rotates the dowel output end according to the orientation of the holes in the board 8, ensuring it is precisely aligned with the drilled holes. The medium application mechanism 52 sprays an appropriate amount of adhesive medium, such as liquid glue, into the holes to enhance the fixing effect of the wooden dowels 7. Simultaneously, the dowel delivery mechanism 53 delivers a wooden dowel 7 to the dowel output end. Immediately afterwards, the dowel drive mechanism 54 pushes the wooden dowel 7 out of the dowel output end and precisely inserts it into the glued hole. After inserting the dowel into one hole, the processing module moves to the next hole position and repeats the above dowel insertion operation until all holes on that side are doweled. Once the drilling and pinning work on one side is completed, the control system drives the processing module to move relative to the sheet metal 8 to another side to be processed. Upon reaching the new position, the attitude adjustment mechanism 51 readjusts the attitude of the pinning output end to align it with the hole on that side, and repeats the drilling and pinning operations. In this way, multiple sides of the sheet metal 8 can complete all drilling and pinning operations in a single clamping operation.

[0022] In existing technologies, drilling and dowel insertion of sheet 8 typically require two separate sets of equipment to complete in stages, resulting in multiple handling and clamping of sheet 8 between different machines. This split-processing mode not only increases the workload of operators but also easily leads to cumulative errors due to the difficulty in achieving perfect consistency in the positioning benchmarks for each clamping. This results in mismatched drilling and dowel hole positions, i.e., "off-center holes," which seriously affects the connection strength and quality of the final product. Furthermore, the transfer between equipment occupies a significant amount of factory space and reduces the overall smoothness of the production line due to mismatched equipment cycle times.

[0023] The integrated machine in this embodiment integrates the drilling execution end 4 and the dowel insertion end 5 into the same processing module. This equipment, through program control, can precisely drill holes in the board 8 and then insert wooden dowels 7 into these holes. This allows the board 8 to complete drilling and dowel insertion on multiple sides in a single clamping operation, ensuring the accuracy and consistency of drilling and dowel insertion. This integrated design eliminates the need to transport the board 8 between different devices, thus avoiding positioning errors caused by multiple clamping and transfers, significantly improving processing accuracy and product quality. Furthermore, the integrated machine, through the attitude adjustment mechanism 51, allows the dowel output end to flexibly switch between multiple orientations to align with different sides of the board 8. This design overcomes the limitation of traditional dowel insertion mechanisms that can only insert dowels in a single direction, enabling the integrated machine to efficiently complete dowel insertion tasks on multiple sides of the board 8, further improving production efficiency and equipment versatility. The integration of the medium application mechanism 52, the supply and delivery mechanism 53, and the pinning drive mechanism 54 ensures the automation and continuity of the pinning process, reduces manual intervention, lowers labor intensity and production costs, and effectively solves problems such as dispersed processes, low positioning accuracy, poor material supply, and low efficiency of multi-faceted processing in the existing technology.

[0024] In a preferred embodiment, the pin output end includes a pin output seat 55 with a pin channel 551, and the output end of the posture adjustment mechanism 51 is connected to the pin output seat 55 to switch the orientation of the pin channel 551.

[0025] In this embodiment, the orientation of the dowel channel 551 inside the dowel output seat 55 directly determines the direction in which the dowel 7 is inserted. When the output end of the posture adjustment mechanism 51 is connected to the dowel output seat 55, the rotation or swinging motion of the posture adjustment mechanism 51 can directly drive the dowel output seat 55 to make corresponding posture adjustments, thereby changing the orientation of the dowel channel 551. This structure makes the function of the dowel output end more specific and controllable, and its orientation switching becomes precise and stable. In this way, the CNC drilling and dowel insertion machine can flexibly adjust the direction of the dowel channel 551 according to the position and angle of the holes on different sides of the board 8, ensuring that the dowel 7 can be accurately and smoothly inserted into the predetermined hole, thereby solving the problem of the accuracy and stability of the posture switching of the dowel output end.

[0026] In a preferred embodiment, the attitude adjustment mechanism 51 can be a servo motor-driven rotary joint, whose output shaft is connected to the base of the pin output seat 55 via a flange. When the servo motor receives a control command, its output shaft drives the pin output seat 55 to rotate around a vertical axis, thereby aligning the pin channel 551 with the holes on the side of the board 8. The inner wall of the pin channel 551 can be polished or coated with a low-friction material to ensure smooth passage of the wooden pins 7.

[0027] In a preferred embodiment, the output end of the attitude adjustment mechanism 51 is connected to a transition seat 56, and the transition seat 56 has a through transition channel 561. The pin-feeding output seat 55 is connected to the transition seat 56, and the pin-feeding output seat 55 also has a guide pin channel 552 that connects the transition channel 561 and the pin-feeding channel 551. The input end of the guide pin channel 552 is coaxially connected to the output end of the transition channel 561, and the output end of the pin-feeding mechanism 53 is coaxially connected to the input end of the transition channel 561.

[0028] In this embodiment, the transition seat 56 is an intermediate connecting component. Its main function is to serve as a structural bridge between the output end of the attitude adjustment mechanism 51 and the pin output seat 55, for fixing and transmitting motion. For example, the transition seat 56 can be designed as a cylinder with a flange, which is bolted to the output shaft of the attitude adjustment mechanism 51, while providing an interface for the pin output seat 55 to connect. The through transition channel 561 refers to a channel provided inside the transition seat 56, extending from one end to the other, whose main function is to provide a continuous path for the conveying of the wooden pin 7.

[0029] Specifically, the output end of the attitude adjustment mechanism 51 is first connected to the transition seat 56, allowing the transition seat 56 to move together with the attitude adjustment mechanism 51, thereby maintaining its relative position to the pin output seat 55. The transition seat 56 has a through-passage transition channel 561, which serves as the intermediate path for the wooden pin 7 to enter the pin output seat 55 from the external pin supply mechanism 53. The pin output seat 55 is connected to the transition seat 56 and has a guide pin channel 552 inside it. This guide pin channel 552 communicates with the pin output channel 551 and is responsible for precisely guiding the wooden pin 7 from the transition channel 561 to the pin output channel 551. Crucially, the input end of the guide pin channel 552 and the output end of the transition channel 561 are coaxially aligned. This ensures that the wooden pin 7 can seamlessly enter the guide pin channel 552 inside the pin output seat 55 after passing through the transition seat 56, avoiding jamming caused by channel misalignment. Simultaneously, the output end of the supply and delivery mechanism 53 and the input end of the transition channel 561 are coaxially connected, forming a continuous and aligned feeding path for the wooden dowels 7 from the supply and delivery mechanism 53 to the dowel output seat 55. When the attitude adjustment mechanism 51 drives the dowel output end (along with the dowel output seat 55 and the transition seat 56) to adjust its attitude, the feeding path of the wooden dowels 7 can rotate as a whole due to the connection between the transition seat 56 and the dowel output seat 55 and the setting of its internal channel. The coaxial connection between the supply and delivery mechanism 53 and the input end of the transition channel 561 ensures that the wooden dowels 7 can continuously and stably enter this rotating channel system. This design ensures that the wooden dowels 7 remain on a continuous and aligned path throughout the feeding process. Even if the dowel output end switches to multiple positions, it can ensure a smooth supply of wooden dowels 7, enabling the integrated machine to more flexibly and stably insert dowels into holes on different sides of the board 8, thereby improving the automation level and processing quality of the equipment.

[0030] As a preferred embodiment, a pin-stopping mechanism is provided on the pin-output seat 55. The movable end of the pin-stopping mechanism can extend into or out of the pin guide channel 552 to selectively block or release the wooden pins 7 that are buffered in the pin guide channel 552 from falling into the pin-planting channel 551.

[0031] In this embodiment, the pin-stopping mechanism is a device used to control the flow of wooden pins 7 and prevent them from falling freely or accumulating. Its core function is to precisely block and release the wooden pins 7. This mechanism can be pneumatic or electric, such as a pin rod, baffle, or clamp driven by a cylinder or solenoid valve. These components reciprocate under air pressure or electromagnetic force to control the passage of the wooden pins 7. The movable end of the pin-stopping mechanism is the part that directly contacts the wooden pins 7. Its insertion into or withdrawal from the guide pin channel 552 is crucial for blocking and releasing the wooden pins 7. By precisely controlling the movement of the movable end, it can be ensured that only one wooden pin 7 is released into the guide pin channel 551 at a time, or that the falling of the wooden pins 7 can be completely prevented when needed. This movable end can be designed as a pin rod or a stop. When it extends into the guide pin channel 552, it can span the channel cross-section, effectively blocking the passage of the wooden pins 7; when it withdraws from the guide pin channel 552, it leaves sufficient space for the wooden pins 7 to pass through. The core function of the pin-stopping mechanism is to achieve precise and on-demand supply of the wooden pins 7. Through the selective blocking or releasing design, the supply of the wooden pins 7 is no longer a disordered free fall, but a controlled and on-demand process. By precisely blocking and releasing the wooden pins 7 in the pin-guiding channel 552 through the pin-stopping mechanism, it can be ensured that the pin-planting channel 551 receives a single wooden pin 7 when needed, realizing automated and precise single-time supply, thereby ensuring the smooth progress of the pin-planting process and the stability of the pin-planting quality.

[0032] In a preferred embodiment, the pin-stopping mechanism includes at least a first pin-stopping cylinder 57 and a second pin-stopping cylinder 58. When the first piston rod of the first pin-stopping cylinder 57 extends into the guide pin channel 552 to block the falling of the upper wooden pin 7, the second piston rod 581 of the second pin-stopping cylinder 58 retracts from the guide pin channel 552, allowing the lowermost wooden pin 7 to fall into the pin-planting channel 551. When the second piston rod 581 of the second pin-stopping cylinder 58 extends into the guide pin channel 552 to block the bottom opening of the guide pin channel 552, the first piston rod of the first pin-stopping cylinder 57 retracts from the guide pin channel 552 to release the wooden pin 7.

[0033] In this embodiment, the precise sorting and sequential supply of wooden dowels 7 are achieved through the coordinated operation of the first stop cylinder 57 and the second stop cylinder 58. Specifically, before the dowel insertion operation begins, the piston rod of the first stop cylinder 57 extends into the guide dowel channel 552, blocking all the wooden dowels 7 above and preventing them from falling further. At this time, the piston rod of the second stop cylinder 58 is in the retracted state, allowing the bottommost wooden dowel 7 located below the first stop cylinder 57 to fall smoothly into the dowel insertion channel 551, waiting for the dowel insertion drive mechanism 54 to perform the dowel insertion operation. After this wooden dowel 7 is inserted into the hole, in order to prepare for the supply of the next wooden dowel 7, the second piston rod 581 of the second stop cylinder 58 extends into the guide dowel channel 552, blocking the bottom opening of the guide dowel channel 552, thereby temporarily supporting the pile of wooden dowels 7 blocked by the first stop cylinder 57 above. Subsequently, the first piston rod of the first stop-pin cylinder 57 retracts from the guide pin channel 552, releasing the wooden pins 7 that were blocked by it. This allows the entire stack of wooden pins 7 to move downwards by one position under gravity until the bottom wooden pin 7 is supported by the second piston rod 581 of the second stop-pin cylinder 58. After this step is completed, the piston rod of the first stop-pin cylinder 57 re-enters the guide pin channel 552, blocking the upper wooden pins 7 again, while the second piston rod 581 of the second stop-pin cylinder 58 retracts from the guide pin channel 552, allowing a new bottom wooden pin 7 to fall into the planting pin channel 551, completing one cycle. This alternating action ensures that only one wooden pin 7 is accurately fed into the planting pin channel 551 at a time, avoiding jamming caused by multiple wooden pins 7 falling simultaneously.

[0034] In a preferred embodiment, the pin-driving mechanism 54 includes a punch 541 that can reciprocate into the pin-planting channel 551, and the axis of the punch 541 is coaxial with the axis of the pin-planting channel 551.

[0035] In this embodiment, the dowel-pulling drive mechanism 54 can be implemented in various forms. For example, it can be a pneumatic cylinder that drives the piston rod to move by the pressure of compressed air; or it can be an electric servo driver that drives a lead screw or linkage mechanism to achieve linear reciprocating motion. The punch 541 is the component in the dowel-pulling drive mechanism 54 that directly acts on the wooden dowel 7. Its main function is to push the wooden dowel 7 out of the dowel-planting channel 551. The punch 541 can reciprocate into the dowel-planting channel 551, which means that the punch 541 can move linearly along the axis of the dowel-planting channel 551. When doweling is needed, it extends into the channel to push out the wooden dowel 7, and retracts after doweling, providing space for the supply and positioning of the next wooden dowel 7. This movement mode ensures that the wooden dowel 7 can be pushed out continuously and effectively. The axis of the punch 541 is coaxial with the axis of the dowel-planting channel 551, which means that the center line of the punch 541 coincides with the center line of the dowel-planting channel 551 in space. This coaxial and reciprocating motion ensures that the wooden dowel 7 is always subjected to a stable and centered thrust during the pushing process, preventing the wooden dowel 7 from tilting, getting stuck, or generating unnecessary friction with the channel wall within the channel. The precise movement of the punch 541 ensures that the wooden dowel 7 can be pushed out smoothly and steadily from the dowel insertion channel 551 and accurately enter the hole in the board 8, thereby guaranteeing the accuracy and reliability of the dowel insertion operation.

[0036] In one specific implementation, the dowel drive mechanism 54 can employ a small pneumatic cylinder. The piston rod of this cylinder is the striking rod 541, and its installation position is precisely calibrated so that the central axis of the piston rod coincides perfectly with the central axis of the dowel insertion channel 551 inside the dowel insertion output seat 55. When a dowel insertion operation is required, the control system supplies air to the cylinder, and the piston rod extends forward under air pressure, directly pushing the wooden dowel 7 located at the foremost end of the dowel insertion channel 551. The stroke of the piston rod is precisely controlled to ensure that it can completely push the wooden dowel 7 out of the dowel insertion channel 551 and insert it into the hole, while avoiding over-extension. After the dowel insertion is completed, the cylinder supplies air in the opposite direction, and the piston rod retracts, preparing for the supply of the next wooden dowel 7.

[0037] In a preferred embodiment, the medium application mechanism 52 includes a nozzle 521 that moves with the output end of the planting pin, the nozzle 521 being configured to spray liquid glue or atomized water vapor into the hole.

[0038] In this embodiment, the media application mechanism 52 (including nozzle 521) and the posture adjustment mechanism 51 of the dowel output end are linked. When the dowel execution end 5 needs to insert dowels into holes on different sides of the board 8, the posture adjustment mechanism 51 drives the dowel output end to rotate to align with the target hole, and the media application mechanism 52 rotates synchronously. This follow-up configuration ensures that the spray direction of the nozzle 521 is always consistent with the axis of the target hole, regardless of which side of the board 8 the hole is located on or at what angle. Therefore, before or during the dowel insertion operation, the nozzle 521 can accurately spray a predetermined amount of liquid glue or atomized water vapor into the drilled hole. Spraying liquid glue provides a reliable adhesive foundation for the subsequent firm insertion of the wooden dowel 7, while spraying atomized water vapor can effectively moisten the hole, optimize the curing environment of the glue, or remove tiny wood chips inside the hole, thereby further improving the quality of the dowel insertion. This integrated linkage design avoids media application deviations caused by changes in the posture of the dowel output end, ensuring the accuracy and effectiveness of the adhesive media application.

[0039] In a preferred embodiment, the nozzle 521 is configured to blow air into the holes before applying the adhesive medium to the holes to remove sawdust from the holes in the board 8.

[0040] In this embodiment, before applying the adhesive medium, airflow is directed into the drilled hole through nozzle 521. The purpose of this operation is to use the impact force of the airflow to blow out impurities such as sawdust and dust from inside the hole, providing a clean surface and space for subsequent application of the adhesive medium and insertion of the wooden dowel 7.

[0041] After drilling the holes in board 8, the dowel actuation end 5 moves to the front of the holes, precisely aligning the nozzle 521 with the holes. At this point, before applying the adhesive medium, a high-speed airflow is sprayed into the holes from the nozzle 521, effectively blowing out residual sawdust, dust, and other impurities, thus achieving initial cleaning of the holes. After the holes are cleaned, the adhesive medium is applied. This sequence of cleaning with air followed by applying the medium ensures that the adhesive medium acts directly on the cleaned surface of board 8, avoiding interference from sawdust on the bonding effect. The medium application mechanism 52 moves in tandem with the dowel output end as the attitude adjustment mechanism 51 rotates, ensuring that the nozzle 521 can accurately align and perform cleaning and adhesive application operations regardless of which side of board 8 the hole is located on. This collaborative working method significantly improves the bonding quality and strength of the dowels.

[0042] In another embodiment, the medium application mechanism 52 further includes a glue tank 522, a supply pipe connecting the nozzle 521 and the glue tank 522, a water tank, and a fluid switching valve. The supply pipe is also connected to the water tank, and the fluid switching valve is disposed on the supply pipe for switching the connection state between the nozzle 521 and the glue tank 522 or the water tank.

[0043] In this embodiment, the media application mechanism 52 integrates an automatic rinsing function to solve the technical problem of nozzle 521 clogging due to glue curing. The glue tank 522 stores liquid glue, the water tank stores cleaning fluid, and the supply pipe connects to the input end of the nozzle 521. The fluid switching valve is preferably a three-way solenoid valve. Its three ports are respectively connected to the outlet of the glue tank 522, the outlet of the water tank, and the supply pipe via the supply pipe. The fluid switching valve is controlled by the control unit and is used to switch the fluid path. Independent pumps are installed at the output ends of the glue tank 522 and the water tank, respectively, to provide power to pump the glue or cleaning fluid to the nozzle. Specifically, the control unit controls the nozzle 521 to align with the target hole in the board, and the control unit sends a command to the fluid switching valve to switch it to the first working state (i.e., connecting the glue tank 522 and the nozzle 521 while closing the path to the water tank). The pump is started, pumping liquid glue from glue tank 522 through the supply pipe to nozzle 521, which then sprays the glue through the nozzle at a set time and pressure, precisely filling the holes in the board. To prevent the glue from curing and clogging in nozzle 521 and supply pipe, the device automatically triggers the flushing process when one of the following conditions is met: the glue dispensing operation is completed and the device enters standby mode; the nozzle 521 remains idle for more than a preset threshold (e.g., 5 minutes); or a manual cleaning command is received. The flushing process is as follows: The control unit sends a command to the fluid switching valve, switching it from the "first working state" to the second working state (i.e., connecting the water tank and nozzle 521 while closing the passage to glue tank 522). The pump is started, pumping the cleaning fluid from the water tank into the supply pipe and forcefully spraying it out from nozzle 521. The flowing cleaning fluid flushes away any residual glue in the supply pipe and nozzle 521, draining it into the waste liquid recovery tank. After flushing continues for a preset time (e.g., 10-30 seconds), the pump stops, and flushing is complete. The device can remain in standby mode or re-enter dispensing operation mode. Through an integrated water tank and a fluid switching valve intelligently controlled by the control unit, it achieves seamless automated switching between dispensing and rinsing functions. This not only completely solves the industry problem of nozzle 521 and supply pipes becoming clogged due to glue curing, ensuring long-term operational stability and dispensing accuracy, but also significantly reduces manual maintenance time and costs, making it particularly suitable for automated production lines requiring long-term, high-volume dispensing of adhesive into board holes.

[0044] In another embodiment, the water tank may store a special cleaning solvent to clean specific adhesives that cure faster. In yet another embodiment, a pressure sensor may be added to the supply pipeline to monitor blockages and feed the signal back to the control unit to immediately trigger an emergency flushing process.

[0045] In a preferred embodiment, the pin feeding mechanism 53 includes a vibratory feeder and a pin feeding pipeline. The pin feeding pipeline includes at least a first feeding pipe 531 for connecting to the output end of the vibratory feeder, a vacuum generator 532 connected to the output end of the first feeding pipe 531, a second feeding pipe 533 connected to the vacuum generator 532, and a pin feeding connector 534 connected to the output end of the second feeding pipe 533. The vacuum generator 532 has a pneumatic feeding channel connecting the first feeding pipe 531 and the second feeding pipe 533. The output end of the pin feeding connector 534 is connected to the pin feeding channel 551.

[0046] In this embodiment, the vibratory feeder first sorts and orients the scattered wooden dowels 7, allowing them to enter the first conveying pipe 531 in an orderly manner. Subsequently, the vacuum generator 532 is activated, using its internal pneumatic conveying channel to generate negative pressure or high-speed airflow to draw in or blow the wooden dowels 7 from the first conveying pipe 531, and then transport them over a long distance along the second conveying pipe 533. Due to the use of pneumatic conveying, the wooden dowels 7 can be transported in the pipeline at a high speed and with flexibility, unaffected by gravity, thus adapting to the needs of the dowel insertion actuator 5's attitude adjustment mechanism 51 switching between multiple orientations. Finally, the wooden dowels 7 are accurately fed into the dowel insertion channel 551 at the dowel output end through the dowel supply connector 534. This design allows the supply of wooden dowels 7 to no longer be limited by gravity or the linear motion of mechanical push rods, but can achieve multi-directional and high-efficiency conveying through flexible pipelines and airflow, overcoming the limitations of traditional mechanical conveying in terms of spatial layout and attitude change. This allows the dowel-planting execution end 5 to receive the wooden dowel 7 stably and continuously, regardless of the orientation of the dowel-planting output end, driven by the attitude adjustment mechanism 51. This greatly improves the adaptability and efficiency of the dowel-planting operation, effectively avoids production interruption or dowel-planting failure caused by insufficient supply of wooden dowel 7, and thus ensures the smooth progress of dowel-planting operations on multiple sides of the board 8.

[0047] This application further proposes a method for processing sheet metal, which includes the following steps: The positioning of the support mechanism 2 in the first horizontal direction and the positioning of the mounting base in the second horizontal and vertical directions are controlled by drilling holes in the side of the plate 8 first by the drilling execution end 4. The control mechanism 51 controls the lifting and positioning of the dowel execution end 5, the posture adjustment mechanism 51 drives the dowel output end to align with the hole of the board 8, the medium application mechanism 52 first blows air into the hole, and then applies adhesive medium into the hole, the dowel supply and conveying mechanism 53 supplies the wooden dowel 7 to the dowel output end, and the dowel driving mechanism 54 drives the wooden dowel 7 into the hole. The mounting base 3 is moved relative to the plate 8 to the other side. The attitude adjustment mechanism 51 rotates so that the pin output end is aligned with the hole on the other side of the plate 8. The pin insertion operation is repeated to complete the pin insertion on multiple sides of the plate 8.

[0048] In this embodiment, the drilling actuator 4 first precisely drills holes in a designated side of the board 8. During this process, the CNC system coordinates the movement of the support mechanism 2 in the first horizontal direction and the movement of the mounting base 3 in the second horizontal and vertical directions to ensure that the drilling actuator 4 drills holes in the side of the board. After drilling is completed, the dowel insertion actuator 5 is controlled to rise and position, and its internal posture adjustment mechanism 51 precisely adjusts the orientation of the dowel output end according to a preset program so that it can be aligned with the axis of the drilled hole. Subsequently, the medium application mechanism 52 first blows air into the hole, and then applies adhesive medium to the hole. The dowel supply mechanism 53 automatically supplies the wooden dowel 7 to the dowel output end, and the dowel driving mechanism 54 accurately inserts the wooden dowel 7 into the hole. In order to achieve the processing of multiple sides of the board 8, the CNC system further coordinates the movement of the support mechanism 2 and the mounting base 3 so that the processing module can reach another side of the board 8 to be processed. At this point, the attitude adjustment mechanism 51 once again plays a crucial role, adjusting the attitude of the pin-inserting output end by rotation to align it with the hole on the new side. This allows the pin-inserting operation to be repeated without manual intervention or re-clamping of the board 8. This integrated, automated, and highly flexible processing flow enables the CNC drilling and pin-inserting machine to efficiently and accurately complete drilling and pin-inserting tasks on multiple sides of the board 8, greatly improving the automation level and production efficiency of the processing.

[0049] The following is a specific example. In actual operation, a piece of board 8 to be processed is first placed on the support mechanism 2, and the board 8 is pressed by the pressure plate mechanism 6. The support mechanism 2 can move along the first horizontal direction on the frame. Then, the CNC system controls the mounting base 3 to move the drilling actuator 4 mounted on it to the first side of the board 8, such as the left side of the board 8. The drilling actuator 4 can be equipped with a high-speed electric spindle, driving an 8mm diameter drill bit to drill multiple holes with a depth of 15mm on the left side of the board 8 according to the preset hole position diagram. After drilling is completed, the CNC system switches to the pin insertion mode and controls the pin insertion actuator 5 to descend to a suitable height. At this time, the posture adjustment mechanism 51 adjusts the pin insertion output end to a position parallel to the hole axis according to the orientation of the hole. The medium application mechanism 52 sprays an appropriate amount of glue into each hole. At the same time, the pin supply and delivery mechanism 53, such as a vibratory feeder in conjunction with a pneumatic delivery pipeline, delivers wooden pins 7 with a diameter of 8mm and a length of 30mm to the pin insertion output end. The dowel-driving mechanism 54, such as a pneumatic pusher, accurately pushes the wooden dowel 7 into the hole. After the dowel is inserted on the left side, the CNC system drives the support mechanism 2 to move along the first horizontal direction (e.g., the X-axis) and simultaneously drives the mounting base 3 to move along the second horizontal direction (e.g., the Y-axis), so that the entire processing module moves to the right side of the board 8. After reaching the right side, the attitude adjustment mechanism 51 rotates again to align the dowel output end with the hole on the right side, and repeats the above steps of gluing, dowel supply, and dowel insertion until the dowel is inserted on the right side. In this way, automated drilling and dowel insertion on multiple sides of the board 8 can be achieved without manual flipping of the board 8.

[0050] It should be noted that controlling the positioning of the mounting base 3 along the second horizontal and vertical directions refers to precisely controlling the position of the mounting base 3 in two-dimensional space through a CNC system, enabling it to move to any preset drilling position on the plate 8. For example, the precise movement and positioning of the mounting base 3 in the Y and Z axes can be achieved through a ball screw or rack and pinion mechanism driven by a servo motor. The drilling execution end 4 can use a high-speed electric spindle driven drill bit, or a drilling unit driven by a pneumatic or hydraulic cylinder. The movement of the support mechanism 2 along the first horizontal direction can be driven by a linear module, which can be implemented through a ball screw or rack and pinion mechanism driven by a servo motor.

[0051] Therefore, the processing method of this application utilizes the multi-axis linkage capability of the CNC drilling and pinning integrated machine and the flexibility of the posture adjustment mechanism 51 to achieve continuous processing of multiple sides of the sheet metal 8. This effectively avoids the problems of processing interruption, low efficiency, and accumulation of positioning errors caused by repeated manual flipping of the sheet metal 8 or adjustment of tooling fixtures in traditional methods. In particular, the posture adjustment mechanism 51 enables the pinning output end to be precisely aligned with the holes on different sides, greatly simplifying the complexity of multi-side processing and improving processing accuracy and consistency. Overall, this method significantly improves the automation level and production efficiency of sheet metal 8 processing, reduces labor costs and operational difficulty, and enables the complex multi-side drilling and pinning task of sheet metal 8 to be completed with higher quality and faster speed.

[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the invention without departing from the principles and spirit of the invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A CNC drilling and pin-insertion integrated machine, characterized in that, include: frame, A support mechanism for supporting the plate is configured to be movably mounted on the frame in a first horizontal direction; Processing modules, including: The mounting base is configured to move along a second horizontal direction perpendicular to the first horizontal direction; The drilling actuator is installed on the mounting base and has a first degree of freedom of vertical lifting, used to drill holes on multiple sides of the plate. A pin-implanting actuator is mounted on the mounting base and has a second degree of freedom of lifting and lowering along the vertical direction; wherein, the pin-implanting actuator includes: The attitude adjustment mechanism is configured to drive the cane output end to switch between multiple positions to align with different sides of the board. A medium application mechanism is configured to apply an adhesive medium into the hole; A supply and delivery mechanism is configured to supply wooden pins to the pin output end; The dowel drive mechanism is configured to push out the wooden dowel in the dowel output end and insert it into the hole.

2. The CNC drilling and pin-insertion integrated machine according to claim 1, characterized in that, The pin-planting output end includes a pin-planting output seat with a pin-planting channel, and the output end of the posture adjustment mechanism is connected to the pin-planting output seat to switch the orientation of the pin-planting channel.

3. The CNC drilling and pin-insertion integrated machine according to claim 2, characterized in that, The output end of the attitude adjustment mechanism is connected to a transition seat, and the transition seat has a through transition channel. The pin-planting output seat is connected to the transition seat, and the pin-planting output seat also has a guide pin channel that connects the transition channel and the pin-planting channel. The input end of the guide pin channel is coaxially connected to the output end of the transition channel, and the output end of the pin-supplying mechanism is coaxially connected to the input end of the transition channel.

4. The CNC drilling and pin-insertion integrated machine according to claim 3, characterized in that, The cane is equipped with a cane-stopping mechanism. The movable end of the cane-stopping mechanism can extend into or out of the cane-guide channel to selectively block or release the wooden cane that is buffered in the cane-guide channel from falling into the cane-planting channel.

5. The CNC drilling and pin-insertion integrated machine according to claim 4, characterized in that, The pin-stopping mechanism includes at least a first pin-stopping cylinder and a second pin-stopping cylinder. When the first piston rod of the first pin-stopping cylinder extends into the guide pin channel to block the upper wooden pin from falling, the second piston rod of the second pin-stopping cylinder exits the guide pin channel so that the lowest wooden pin falls into the pin-planting channel. When the second piston rod of the second stop pin cylinder extends into the guide pin channel to block the bottom opening of the guide pin channel, the first piston rod of the first stop pin cylinder retracts from the guide pin channel to release the wooden pin.

6. The CNC drilling and pin-insertion integrated machine according to claim 2, characterized in that, The pin-driving mechanism includes a punch that can reciprocate and extend into the pin-planting channel, the axis of the punch being coaxial with the axis of the pin-planting channel.

7. The CNC drilling and pin-insertion integrated machine according to claim 1, characterized in that, The medium application mechanism includes a nozzle that moves with the output end of the planting pin, the nozzle being configured to spray liquid glue or atomized water vapor into the hole.

8. The CNC drilling and pin-insertion integrated machine according to claim 7, characterized in that, The medium application mechanism further includes a glue tank, a supply pipe connecting the nozzle and the glue tank, a water tank, and a fluid switching valve. The supply pipe is also connected to the water tank, and the fluid switching valve is installed on the supply pipe to switch the connection state between the nozzle and the glue tank or the water tank.

9. The CNC drilling and pin-insertion integrated machine according to claim 2, characterized in that, The supply and delivery mechanism includes a vibratory feeder and a pin delivery pipeline. The pin delivery pipeline includes at least a first delivery pipe for connecting to the output end of the vibratory feeder, a vacuum generator for connecting to the output end of the first delivery pipe, a second delivery pipe for connecting to the vacuum generator, and a pin delivery connector for connecting to the output end of the second delivery pipe. The vacuum generator has a pneumatic delivery channel connecting the first delivery pipe and the second delivery pipe, and the output end of the pin delivery connector is connected to the pin delivery channel.

10. A method for processing sheet metal, characterized in that, The CNC drilling and pinning machine according to any one of claims 1-9 is used to drill holes and insert pins on the side of a sheet metal, comprising the following steps: The positioning of the support mechanism in the first horizontal direction and the positioning of the mounting base in the second horizontal and vertical directions are controlled by drilling holes in the side of the plate first by the drilling execution end. The mechanism controls the lifting and positioning of the dowel-implementing end, the attitude adjustment mechanism drives the dowel output end to align with the hole in the board, the medium application mechanism first blows air into the hole, and then applies adhesive medium to the hole, the dowel supply and conveying mechanism supplies wooden dowels to the dowel output end, and the dowel driving mechanism drives the wooden dowels into the hole. The mounting base is controlled to move relative to the plate to the other side. The attitude adjustment mechanism rotates so that the pin output end is aligned with the hole on the other side of the plate. The pin insertion operation is repeated to complete the pin insertion on multiple sides of the plate.

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